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in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport autoInit from '@material/auto-init/index';\nimport * as base from '@material/base/index';\nimport * as checkbox from '@material/checkbox/index';\nimport * as chips from '@material/chips/index';\nimport * as dataTable from '@material/data-table/index';\nimport * as dialog from '@material/dialog/index';\nimport * as dom from '@material/dom/index';\nimport * as drawer from '@material/drawer/index';\nimport * as floatingLabel from '@material/floating-label/index';\nimport * as formField from '@material/form-field/index';\nimport * as iconButton from '@material/icon-button/index';\nimport * as lineRipple from '@material/line-ripple/index';\nimport * as linearProgress from '@material/linear-progress/index';\nimport * as list from '@material/list/index';\nimport * as menuSurface from '@material/menu-surface/index';\nimport * as menu from '@material/menu/index';\nimport * as notchedOutline from '@material/notched-outline/index';\nimport * as radio from '@material/radio/index';\nimport * as ripple from '@material/ripple/index';\nimport * as select from '@material/select/index';\nimport * as slider from '@material/slider/index';\nimport * as snackbar from '@material/snackbar/index';\nimport * as switchControl from '@material/switch/index';\nimport * as tabBar from '@material/tab-bar/index';\nimport * as tabIndicator from '@material/tab-indicator/index';\nimport * as tabScroller from '@material/tab-scroller/index';\nimport * as tab from '@material/tab/index';\nimport * as textField from '@material/textfield/index';\nimport * as topAppBar from '@material/top-app-bar/index';\n\n// Register all components\nautoInit.register('MDCCheckbox', checkbox.MDCCheckbox);\nautoInit.register('MDCChip', chips.MDCChip);\nautoInit.register('MDCChipSet', chips.MDCChipSet);\nautoInit.register('MDCDataTable', dataTable.MDCDataTable);\nautoInit.register('MDCDialog', dialog.MDCDialog);\nautoInit.register('MDCDrawer', drawer.MDCDrawer);\nautoInit.register('MDCFloatingLabel', floatingLabel.MDCFloatingLabel);\nautoInit.register('MDCFormField', formField.MDCFormField);\nautoInit.register('MDCIconButtonToggle', iconButton.MDCIconButtonToggle);\nautoInit.register('MDCLineRipple', lineRipple.MDCLineRipple);\nautoInit.register('MDCLinearProgress', linearProgress.MDCLinearProgress);\nautoInit.register('MDCList', list.MDCList);\nautoInit.register('MDCMenu', menu.MDCMenu);\nautoInit.register('MDCMenuSurface', menuSurface.MDCMenuSurface);\nautoInit.register('MDCNotchedOutline', notchedOutline.MDCNotchedOutline);\nautoInit.register('MDCRadio', radio.MDCRadio);\nautoInit.register('MDCRipple', ripple.MDCRipple);\nautoInit.register('MDCSelect', select.MDCSelect);\nautoInit.register('MDCSlider', slider.MDCSlider);\nautoInit.register('MDCSnackbar', snackbar.MDCSnackbar);\nautoInit.register('MDCSwitch', switchControl.MDCSwitch);\nautoInit.register('MDCTabBar', tabBar.MDCTabBar);\nautoInit.register('MDCTextField', textField.MDCTextField);\nautoInit.register('MDCTopAppBar', topAppBar.MDCTopAppBar);\n\n// Export all components.\nexport {\n  autoInit,\n  base,\n  checkbox,\n  chips,\n  dataTable,\n  dialog,\n  dom,\n  drawer,\n  floatingLabel,\n  formField,\n  iconButton,\n  lineRipple,\n  linearProgress,\n  list,\n  menu,\n  menuSurface,\n  notchedOutline,\n  radio,\n  ripple,\n  select,\n  slider,\n  snackbar,\n  switchControl,\n  tab,\n  tabBar,\n  tabIndicator,\n  tabScroller,\n  textField,\n  topAppBar,\n};\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {\n  CssVendorPropertyMap, JsVendorPropertyMap,\n  PrefixedCssPropertyName, PrefixedJsEventType,\n  StandardCssPropertyName, StandardJsEventType,\n} from './types';\n\nconst cssPropertyNameMap: CssVendorPropertyMap = {\n  animation: {\n    prefixed: '-webkit-animation',\n    standard: 'animation',\n  },\n  transform: {\n    prefixed: '-webkit-transform',\n    standard: 'transform',\n  },\n  transition: {\n    prefixed: '-webkit-transition',\n    standard: 'transition',\n  },\n};\n\nconst jsEventTypeMap: JsVendorPropertyMap = {\n  animationend: {\n    cssProperty: 'animation',\n    prefixed: 'webkitAnimationEnd',\n    standard: 'animationend',\n  },\n  animationiteration: {\n    cssProperty: 'animation',\n    prefixed: 'webkitAnimationIteration',\n    standard: 'animationiteration',\n  },\n  animationstart: {\n    cssProperty: 'animation',\n    prefixed: 'webkitAnimationStart',\n    standard: 'animationstart',\n  },\n  transitionend: {\n    cssProperty: 'transition',\n    prefixed: 'webkitTransitionEnd',\n    standard: 'transitionend',\n  },\n};\n\nfunction isWindow(windowObj: Window): boolean {\n  return Boolean(windowObj.document) && typeof windowObj.document.createElement === 'function';\n}\n\nexport function getCorrectPropertyName(windowObj: Window, cssProperty: StandardCssPropertyName):\n    StandardCssPropertyName | PrefixedCssPropertyName {\n  if (isWindow(windowObj) && cssProperty in cssPropertyNameMap) {\n    const el = windowObj.document.createElement('div');\n    const {standard, prefixed} = cssPropertyNameMap[cssProperty];\n    const isStandard = standard in el.style;\n    return isStandard ? standard : prefixed;\n  }\n  return cssProperty;\n}\n\nexport function getCorrectEventName(windowObj: Window, eventType: StandardJsEventType):\n    StandardJsEventType | PrefixedJsEventType {\n  if (isWindow(windowObj) && eventType in jsEventTypeMap) {\n    const el = windowObj.document.createElement('div');\n    const {standard, prefixed, cssProperty} = jsEventTypeMap[eventType];\n    const isStandard = cssProperty in el.style;\n    return isStandard ? standard : prefixed;\n  }\n  return eventType;\n}\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport const strings = {\n  AUTO_INIT_ATTR: 'data-mdc-auto-init',\n  AUTO_INIT_STATE_ATTR: 'data-mdc-auto-init-state',\n  INITIALIZED_STATE: 'initialized',\n};\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\n// tslint:disable:only-arrow-functions\n\nimport {MDCComponent} from '@material/base/component';\nimport {MDCFoundation} from '@material/base/foundation';\n\nimport {strings} from './constants';\n\nconst {AUTO_INIT_ATTR, AUTO_INIT_STATE_ATTR, INITIALIZED_STATE} = strings;\n\nexport interface MDCAttachable {\n  new<F extends MDCFoundation>(root: Element, foundation?: F, ...args: Array<unknown>): MDCComponent<F>;\n\n  // Static method.\n  attachTo<F extends MDCFoundation>(root: Element): MDCComponent<F>;\n}\n\ninterface InternalComponentRegistry {\n  [key: string]: MDCAttachable;\n}\n\nconst registry: InternalComponentRegistry = {};\n\nconst CONSOLE_WARN = console.warn.bind(console); // tslint:disable-line:no-console\n\nfunction emit<T extends object>(evtType: string, evtData: T, shouldBubble = false) {\n  let evt;\n  if (typeof CustomEvent === 'function') {\n    evt = new CustomEvent<T>(evtType, {\n      bubbles: shouldBubble,\n      detail: evtData,\n    });\n  } else {\n    evt = document.createEvent('CustomEvent');\n    evt.initCustomEvent(evtType, shouldBubble, false, evtData);\n  }\n\n  document.dispatchEvent(evt);\n}\n\n/* istanbul ignore next: optional argument is not a branch statement */\n/**\n * Auto-initializes all MDC components on a page.\n */\nfunction mdcAutoInit(root = document) {\n  const components = [];\n  let nodes: Element[] = [].slice.call(root.querySelectorAll(`[${AUTO_INIT_ATTR}]`));\n  nodes = nodes.filter((node) => node.getAttribute(AUTO_INIT_STATE_ATTR) !== INITIALIZED_STATE);\n\n  for (const node of nodes) {\n    const ctorName = node.getAttribute(AUTO_INIT_ATTR);\n    if (!ctorName) {\n      throw new Error('(mdc-auto-init) Constructor name must be given.');\n    }\n\n    const Constructor = registry[ctorName]; // tslint:disable-line:variable-name\n    if (typeof Constructor !== 'function') {\n      throw new Error(\n          `(mdc-auto-init) Could not find constructor in registry for ${ctorName}`);\n    }\n\n    // TODO: Should we make an eslint rule for an attachTo() static method?\n    // See https://github.com/Microsoft/TypeScript/issues/14600 for discussion of static interface support in TS\n    const component = Constructor.attachTo(node);\n    Object.defineProperty(node, ctorName, {\n      configurable: true,\n      enumerable: false,\n      value: component,\n      writable: false,\n    });\n    components.push(component);\n    node.setAttribute(AUTO_INIT_STATE_ATTR, INITIALIZED_STATE);\n  }\n\n  emit('MDCAutoInit:End', {});\n  return components;\n}\n\n// Constructor is PascalCased because it is a direct reference to a class, rather than an instance of a class.\n// tslint:disable-next-line:variable-name\nmdcAutoInit.register = function(componentName: string, Constructor: MDCAttachable, warn = CONSOLE_WARN) {\n  if (typeof Constructor !== 'function') {\n    throw new Error(`(mdc-auto-init) Invalid Constructor value: ${Constructor}. Expected function.`);\n  }\n  const registryValue = registry[componentName];\n  if (registryValue) {\n    warn(`(mdc-auto-init) Overriding registration for ${componentName} with ${Constructor}. Was: ${registryValue}`);\n  }\n  registry[componentName] = Constructor;\n};\n\nmdcAutoInit.deregister = function(componentName: string) {\n  delete registry[componentName];\n};\n\nmdcAutoInit.deregisterAll = function() {\n  const keys = Object.keys(registry) as string[];\n  keys.forEach(this.deregister, this);\n};\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default mdcAutoInit;\nexport {mdcAutoInit};\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from './foundation';\nimport {CustomEventListener, EventType, SpecificEventListener} from './types';\n\nexport class MDCComponent<FoundationType extends MDCFoundation> {\n  static attachTo(root: Element): MDCComponent<MDCFoundation<{}>> {\n    // Subclasses which extend MDCBase should provide an attachTo() method that takes a root element and\n    // returns an instantiated component with its root set to that element. Also note that in the cases of\n    // subclasses, an explicit foundation class will not have to be passed in; it will simply be initialized\n    // from getDefaultFoundation().\n    return new MDCComponent(root, new MDCFoundation({}));\n  }\n\n  protected root_: Element;\n  protected foundation_: FoundationType;\n\n  constructor(\n      root: Element,\n      foundation?: FoundationType,\n      ...args: Array<unknown>\n  ) {\n    this.root_ = root;\n    this.initialize(...args);\n    // Note that we initialize foundation here and not within the constructor's default param so that\n    // this.root_ is defined and can be used within the foundation class.\n    this.foundation_ = foundation === undefined ? this.getDefaultFoundation() : foundation;\n    this.foundation_.init();\n    this.initialSyncWithDOM();\n  }\n\n  /* istanbul ignore next: method param only exists for typing purposes; it does not need to be unit tested */\n  initialize(..._args: Array<unknown>) {\n    // Subclasses can override this to do any additional setup work that would be considered part of a\n    // \"constructor\". Essentially, it is a hook into the parent constructor before the foundation is\n    // initialized. Any additional arguments besides root and foundation will be passed in here.\n  }\n\n  getDefaultFoundation(): FoundationType {\n    // Subclasses must override this method to return a properly configured foundation class for the\n    // component.\n    throw new Error('Subclasses must override getDefaultFoundation to return a properly configured ' +\n        'foundation class');\n  }\n\n  initialSyncWithDOM() {\n    // Subclasses should override this method if they need to perform work to synchronize with a host DOM\n    // object. An example of this would be a form control wrapper that needs to synchronize its internal state\n    // to some property or attribute of the host DOM. Please note: this is *not* the place to perform DOM\n    // reads/writes that would cause layout / paint, as this is called synchronously from within the constructor.\n  }\n\n  destroy() {\n    // Subclasses may implement this method to release any resources / deregister any listeners they have\n    // attached. An example of this might be deregistering a resize event from the window object.\n    this.foundation_.destroy();\n  }\n\n  /**\n   * Wrapper method to add an event listener to the component's root element. This is most useful when\n   * listening for custom events.\n   */\n  listen<K extends EventType>(\n    evtType: K, handler: SpecificEventListener<K>, options?: AddEventListenerOptions | boolean): void;\n  listen<E extends Event>(\n    evtType: string, handler: CustomEventListener<E>, options?: AddEventListenerOptions | boolean): void;\n  listen(evtType: string, handler: EventListener, options?: AddEventListenerOptions | boolean) {\n    this.root_.addEventListener(evtType, handler, options);\n  }\n\n  /**\n   * Wrapper method to remove an event listener to the component's root element. This is most useful when\n   * unlistening for custom events.\n   */\n  unlisten<K extends EventType>(\n    evtType: K, handler: SpecificEventListener<K>, options?: AddEventListenerOptions | boolean): void;\n  unlisten<E extends Event>(\n    evtType: string, handler: CustomEventListener<E>, options?: AddEventListenerOptions | boolean): void;\n  unlisten(evtType: string, handler: EventListener, options?: AddEventListenerOptions | boolean) {\n    this.root_.removeEventListener(evtType, handler, options);\n  }\n\n  /**\n   * Fires a cross-browser-compatible custom event from the component root of the given type, with the given data.\n   */\n  emit<T extends object>(evtType: string, evtData: T, shouldBubble = false) {\n    let evt: CustomEvent<T>;\n    if (typeof CustomEvent === 'function') {\n      evt = new CustomEvent<T>(evtType, {\n        bubbles: shouldBubble,\n        detail: evtData,\n      });\n    } else {\n      evt = document.createEvent('CustomEvent');\n      evt.initCustomEvent(evtType, shouldBubble, false, evtData);\n    }\n\n    this.root_.dispatchEvent(evt);\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCComponent;\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport class MDCFoundation<AdapterType extends {} = {}> {\n  static get cssClasses(): { [key: string]: string } {\n    // Classes extending MDCFoundation should implement this method to return an object which exports every\n    // CSS class the foundation class needs as a property. e.g. {ACTIVE: 'mdc-component--active'}\n    return {};\n  }\n\n  static get strings(): { [key: string]: string } {\n    // Classes extending MDCFoundation should implement this method to return an object which exports all\n    // semantic strings as constants. e.g. {ARIA_ROLE: 'tablist'}\n    return {};\n  }\n\n  static get numbers(): { [key: string]: number } {\n    // Classes extending MDCFoundation should implement this method to return an object which exports all\n    // of its semantic numbers as constants. e.g. {ANIMATION_DELAY_MS: 350}\n    return {};\n  }\n\n  static get defaultAdapter(): {} {\n    // Classes extending MDCFoundation may choose to implement this getter in order to provide a convenient\n    // way of viewing the necessary methods of an adapter. In the future, this could also be used for adapter\n    // validation.\n    return {};\n  }\n\n  protected adapter_: AdapterType;\n\n  constructor(adapter: AdapterType = {} as AdapterType) {\n    this.adapter_ = adapter;\n  }\n\n  init() {\n    // Subclasses should override this method to perform initialization routines (registering events, etc.)\n  }\n\n  destroy() {\n    // Subclasses should override this method to perform de-initialization routines (de-registering events, etc.)\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport * from './component';\nexport * from './foundation';\nexport * from './types';\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {getCorrectEventName} from '@material/animation/util';\nimport {MDCComponent} from '@material/base/component';\nimport {applyPassive} from '@material/dom/events';\nimport {matches} from '@material/dom/ponyfill';\nimport {MDCRippleAdapter} from '@material/ripple/adapter';\nimport {MDCRipple} from '@material/ripple/component';\nimport {MDCRippleFoundation} from '@material/ripple/foundation';\nimport {MDCRippleCapableSurface} from '@material/ripple/types';\nimport {MDCCheckboxAdapter} from './adapter';\nimport {MDCCheckboxFoundation} from './foundation';\n\n/**\n * This type is needed for compatibility with Closure Compiler.\n */\ntype PropertyDescriptorGetter = (() => unknown) | undefined;\n\nconst CB_PROTO_PROPS = ['checked', 'indeterminate'];\n\nexport type MDCCheckboxFactory = (el: Element, foundation?: MDCCheckboxFoundation) => MDCCheckbox;\n\nexport class MDCCheckbox extends MDCComponent<MDCCheckboxFoundation> implements MDCRippleCapableSurface {\n  static attachTo(root: Element) {\n    return new MDCCheckbox(root);\n  }\n\n  get ripple(): MDCRipple {\n    return this.ripple_;\n  }\n\n  get checked(): boolean {\n    return this.nativeControl_.checked;\n  }\n\n  set checked(checked: boolean) {\n    this.nativeControl_.checked = checked;\n  }\n\n  get indeterminate(): boolean {\n    return this.nativeControl_.indeterminate;\n  }\n\n  set indeterminate(indeterminate: boolean) {\n    this.nativeControl_.indeterminate = indeterminate;\n  }\n\n  get disabled(): boolean {\n    return this.nativeControl_.disabled;\n  }\n\n  set disabled(disabled: boolean) {\n    this.foundation_.setDisabled(disabled);\n  }\n\n  get value(): string {\n    return this.nativeControl_.value;\n  }\n\n  set value(value: string) {\n    this.nativeControl_.value = value;\n  }\n\n  // Public visibility for this property is required by MDCRippleCapableSurface.\n  root_!: Element; // assigned in MDCComponent constructor\n\n  private readonly ripple_: MDCRipple = this.createRipple_();\n  private handleChange_!: EventListener; // assigned in initialSyncWithDOM()\n  private handleAnimationEnd_!: EventListener; // assigned in initialSyncWithDOM()\n\n  initialSyncWithDOM() {\n    this.handleChange_ = () => this.foundation_.handleChange();\n    this.handleAnimationEnd_ = () => this.foundation_.handleAnimationEnd();\n    this.nativeControl_.addEventListener('change', this.handleChange_);\n    this.listen(getCorrectEventName(window, 'animationend'), this.handleAnimationEnd_);\n    this.installPropertyChangeHooks_();\n  }\n\n  destroy() {\n    this.ripple_.destroy();\n    this.nativeControl_.removeEventListener('change', this.handleChange_);\n    this.unlisten(getCorrectEventName(window, 'animationend'), this.handleAnimationEnd_);\n    this.uninstallPropertyChangeHooks_();\n    super.destroy();\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    const adapter: MDCCheckboxAdapter = {\n      addClass: (className) => this.root_.classList.add(className),\n      forceLayout: () => (this.root_ as HTMLElement).offsetWidth,\n      hasNativeControl: () => !!this.nativeControl_,\n      isAttachedToDOM: () => Boolean(this.root_.parentNode),\n      isChecked: () => this.checked,\n      isIndeterminate: () => this.indeterminate,\n      removeClass: (className) => this.root_.classList.remove(className),\n      removeNativeControlAttr: (attr) => this.nativeControl_.removeAttribute(attr),\n      setNativeControlAttr: (attr, value) => this.nativeControl_.setAttribute(attr, value),\n      setNativeControlDisabled: (disabled) => this.nativeControl_.disabled = disabled,\n    };\n    return new MDCCheckboxFoundation(adapter);\n  }\n\n  private createRipple_(): MDCRipple {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    const adapter: MDCRippleAdapter = {\n      ...MDCRipple.createAdapter(this),\n      deregisterInteractionHandler: (evtType, handler) => this.nativeControl_.removeEventListener(\n        evtType, handler, applyPassive()),\n      isSurfaceActive: () => matches(this.nativeControl_, ':active'),\n      isUnbounded: () => true,\n      registerInteractionHandler: (evtType, handler) => this.nativeControl_.addEventListener(\n        evtType, handler, applyPassive()),\n    };\n    return new MDCRipple(this.root_, new MDCRippleFoundation(adapter));\n  }\n\n  private installPropertyChangeHooks_() {\n    const nativeCb = this.nativeControl_;\n    const cbProto = Object.getPrototypeOf(nativeCb);\n\n    CB_PROTO_PROPS.forEach((controlState) => {\n      const desc = Object.getOwnPropertyDescriptor(cbProto, controlState);\n      // We have to check for this descriptor, since some browsers (Safari) don't support its return.\n      // See: https://bugs.webkit.org/show_bug.cgi?id=49739\n      if (!validDescriptor(desc)) {\n        return;\n      }\n\n      // Type cast is needed for compatibility with Closure Compiler.\n      const nativeGetter = (desc as {get: PropertyDescriptorGetter}).get;\n\n      const nativeCbDesc = {\n        configurable: desc.configurable,\n        enumerable: desc.enumerable,\n        get: nativeGetter,\n        set: (state: boolean) => {\n          desc.set!.call(nativeCb, state);\n          this.foundation_.handleChange();\n        },\n      };\n      Object.defineProperty(nativeCb, controlState, nativeCbDesc);\n    });\n  }\n\n  private uninstallPropertyChangeHooks_() {\n    const nativeCb = this.nativeControl_;\n    const cbProto = Object.getPrototypeOf(nativeCb);\n\n    CB_PROTO_PROPS.forEach((controlState) => {\n      const desc = Object.getOwnPropertyDescriptor(cbProto, controlState);\n      if (!validDescriptor(desc)) {\n        return;\n      }\n      Object.defineProperty(nativeCb, controlState, desc);\n    });\n  }\n\n  private get nativeControl_(): HTMLInputElement {\n    const {NATIVE_CONTROL_SELECTOR} = MDCCheckboxFoundation.strings;\n    const el = this.root_.querySelector<HTMLInputElement>(NATIVE_CONTROL_SELECTOR);\n    if (!el) {\n      throw new Error(`Checkbox component requires a ${NATIVE_CONTROL_SELECTOR} element`);\n    }\n    return el;\n  }\n}\n\nfunction validDescriptor(inputPropDesc: PropertyDescriptor | undefined): inputPropDesc is PropertyDescriptor {\n  return !!inputPropDesc && typeof inputPropDesc.set === 'function';\n}\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport const cssClasses = {\n  ANIM_CHECKED_INDETERMINATE: 'mdc-checkbox--anim-checked-indeterminate',\n  ANIM_CHECKED_UNCHECKED: 'mdc-checkbox--anim-checked-unchecked',\n  ANIM_INDETERMINATE_CHECKED: 'mdc-checkbox--anim-indeterminate-checked',\n  ANIM_INDETERMINATE_UNCHECKED: 'mdc-checkbox--anim-indeterminate-unchecked',\n  ANIM_UNCHECKED_CHECKED: 'mdc-checkbox--anim-unchecked-checked',\n  ANIM_UNCHECKED_INDETERMINATE: 'mdc-checkbox--anim-unchecked-indeterminate',\n  BACKGROUND: 'mdc-checkbox__background',\n  CHECKED: 'mdc-checkbox--checked',\n  CHECKMARK: 'mdc-checkbox__checkmark',\n  CHECKMARK_PATH: 'mdc-checkbox__checkmark-path',\n  DISABLED: 'mdc-checkbox--disabled',\n  INDETERMINATE: 'mdc-checkbox--indeterminate',\n  MIXEDMARK: 'mdc-checkbox__mixedmark',\n  NATIVE_CONTROL: 'mdc-checkbox__native-control',\n  ROOT: 'mdc-checkbox',\n  SELECTED: 'mdc-checkbox--selected',\n  UPGRADED: 'mdc-checkbox--upgraded',\n};\n\nexport const strings = {\n  ARIA_CHECKED_ATTR: 'aria-checked',\n  ARIA_CHECKED_INDETERMINATE_VALUE: 'mixed',\n  NATIVE_CONTROL_SELECTOR: '.mdc-checkbox__native-control',\n  TRANSITION_STATE_CHECKED: 'checked',\n  TRANSITION_STATE_INDETERMINATE: 'indeterminate',\n  TRANSITION_STATE_INIT: 'init',\n  TRANSITION_STATE_UNCHECKED: 'unchecked',\n};\n\nexport const numbers = {\n  ANIM_END_LATCH_MS: 250,\n};\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {MDCCheckboxAdapter} from './adapter';\nimport {cssClasses, numbers, strings} from './constants';\n\nexport class MDCCheckboxFoundation extends MDCFoundation<MDCCheckboxAdapter> {\n  static get cssClasses() {\n    return cssClasses;\n  }\n\n  static get strings() {\n    return strings;\n  }\n\n  static get numbers() {\n    return numbers;\n  }\n\n  static get defaultAdapter(): MDCCheckboxAdapter {\n    return {\n      addClass: () => undefined,\n      forceLayout: () => undefined,\n      hasNativeControl: () => false,\n      isAttachedToDOM: () => false,\n      isChecked: () => false,\n      isIndeterminate: () => false,\n      removeClass: () => undefined,\n      removeNativeControlAttr: () => undefined,\n      setNativeControlAttr: () => undefined,\n      setNativeControlDisabled: () => undefined,\n    };\n  }\n\n  private currentCheckState_ = strings.TRANSITION_STATE_INIT;\n  private currentAnimationClass_ = '';\n  private animEndLatchTimer_ = 0;\n  private enableAnimationEndHandler_ = false;\n\n  constructor(adapter?: Partial<MDCCheckboxAdapter>) {\n    super({...MDCCheckboxFoundation.defaultAdapter, ...adapter});\n  }\n\n  init() {\n    this.currentCheckState_ = this.determineCheckState_();\n    this.updateAriaChecked_();\n    this.adapter_.addClass(cssClasses.UPGRADED);\n  }\n\n  destroy() {\n    clearTimeout(this.animEndLatchTimer_);\n  }\n\n  setDisabled(disabled: boolean) {\n    this.adapter_.setNativeControlDisabled(disabled);\n    if (disabled) {\n      this.adapter_.addClass(cssClasses.DISABLED);\n    } else {\n      this.adapter_.removeClass(cssClasses.DISABLED);\n    }\n  }\n\n  /**\n   * Handles the animationend event for the checkbox\n   */\n  handleAnimationEnd() {\n    if (!this.enableAnimationEndHandler_) {\n      return;\n    }\n\n    clearTimeout(this.animEndLatchTimer_);\n\n    this.animEndLatchTimer_ = setTimeout(() => {\n      this.adapter_.removeClass(this.currentAnimationClass_);\n      this.enableAnimationEndHandler_ = false;\n    }, numbers.ANIM_END_LATCH_MS);\n  }\n\n  /**\n   * Handles the change event for the checkbox\n   */\n  handleChange() {\n    this.transitionCheckState_();\n  }\n\n  private transitionCheckState_() {\n    if (!this.adapter_.hasNativeControl()) {\n      return;\n    }\n    const oldState = this.currentCheckState_;\n    const newState = this.determineCheckState_();\n\n    if (oldState === newState) {\n      return;\n    }\n\n    this.updateAriaChecked_();\n\n    const {TRANSITION_STATE_UNCHECKED} = strings;\n    const {SELECTED} = cssClasses;\n    if (newState === TRANSITION_STATE_UNCHECKED) {\n      this.adapter_.removeClass(SELECTED);\n    } else {\n      this.adapter_.addClass(SELECTED);\n    }\n\n    // Check to ensure that there isn't a previously existing animation class, in case for example\n    // the user interacted with the checkbox before the animation was finished.\n    if (this.currentAnimationClass_.length > 0) {\n      clearTimeout(this.animEndLatchTimer_);\n      this.adapter_.forceLayout();\n      this.adapter_.removeClass(this.currentAnimationClass_);\n    }\n\n    this.currentAnimationClass_ = this.getTransitionAnimationClass_(oldState, newState);\n    this.currentCheckState_ = newState;\n\n    // Check for parentNode so that animations are only run when the element is attached\n    // to the DOM.\n    if (this.adapter_.isAttachedToDOM() && this.currentAnimationClass_.length > 0) {\n      this.adapter_.addClass(this.currentAnimationClass_);\n      this.enableAnimationEndHandler_ = true;\n    }\n  }\n\n  private determineCheckState_(): string {\n    const {\n      TRANSITION_STATE_INDETERMINATE,\n      TRANSITION_STATE_CHECKED,\n      TRANSITION_STATE_UNCHECKED,\n    } = strings;\n\n    if (this.adapter_.isIndeterminate()) {\n      return TRANSITION_STATE_INDETERMINATE;\n    }\n    return this.adapter_.isChecked() ? TRANSITION_STATE_CHECKED : TRANSITION_STATE_UNCHECKED;\n  }\n\n  private getTransitionAnimationClass_(oldState: string, newState: string): string {\n    const {\n      TRANSITION_STATE_INIT,\n      TRANSITION_STATE_CHECKED,\n      TRANSITION_STATE_UNCHECKED,\n    } = strings;\n\n    const {\n      ANIM_UNCHECKED_CHECKED,\n      ANIM_UNCHECKED_INDETERMINATE,\n      ANIM_CHECKED_UNCHECKED,\n      ANIM_CHECKED_INDETERMINATE,\n      ANIM_INDETERMINATE_CHECKED,\n      ANIM_INDETERMINATE_UNCHECKED,\n    } = MDCCheckboxFoundation.cssClasses;\n\n    switch (oldState) {\n      case TRANSITION_STATE_INIT:\n        if (newState === TRANSITION_STATE_UNCHECKED) {\n          return '';\n        }\n        return newState === TRANSITION_STATE_CHECKED ? ANIM_INDETERMINATE_CHECKED : ANIM_INDETERMINATE_UNCHECKED;\n      case TRANSITION_STATE_UNCHECKED:\n        return newState === TRANSITION_STATE_CHECKED ? ANIM_UNCHECKED_CHECKED : ANIM_UNCHECKED_INDETERMINATE;\n      case TRANSITION_STATE_CHECKED:\n        return newState === TRANSITION_STATE_UNCHECKED ? ANIM_CHECKED_UNCHECKED : ANIM_CHECKED_INDETERMINATE;\n      default: // TRANSITION_STATE_INDETERMINATE\n        return newState === TRANSITION_STATE_CHECKED ? ANIM_INDETERMINATE_CHECKED : ANIM_INDETERMINATE_UNCHECKED;\n    }\n  }\n\n  private updateAriaChecked_() {\n    // Ensure aria-checked is set to mixed if checkbox is in indeterminate state.\n    if (this.adapter_.isIndeterminate()) {\n      this.adapter_.setNativeControlAttr(\n          strings.ARIA_CHECKED_ATTR, strings.ARIA_CHECKED_INDETERMINATE_VALUE);\n    } else {\n      // The on/off state does not need to keep track of aria-checked, since\n      // the screenreader uses the checked property on the checkbox element.\n      this.adapter_.removeNativeControlAttr(strings.ARIA_CHECKED_ATTR);\n    }\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCCheckboxFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport * from './adapter';\nexport * from './component';\nexport * from './constants';\nexport * from './foundation';\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {announce} from '@material/dom/announce';\nimport {MDCChip, MDCChipFactory} from '../chip/component';\nimport {MDCChipFoundation} from '../chip/foundation';\nimport {MDCChipInteractionEvent, MDCChipNavigationEvent, MDCChipRemovalEvent,\n    MDCChipSelectionEvent} from '../chip/types';\nimport {MDCChipSetAdapter} from './adapter';\nimport {MDCChipSetFoundation} from './foundation';\n\nconst {INTERACTION_EVENT, SELECTION_EVENT, REMOVAL_EVENT, NAVIGATION_EVENT} = MDCChipFoundation.strings;\nconst {CHIP_SELECTOR} = MDCChipSetFoundation.strings;\n\nlet idCounter = 0;\n\nexport class MDCChipSet extends MDCComponent<MDCChipSetFoundation> {\n  static attachTo(root: Element) {\n    return new MDCChipSet(root);\n  }\n\n  get chips(): ReadonlyArray<MDCChip> {\n    return this.chips_.slice();\n  }\n\n  /**\n   * @return An array of the IDs of all selected chips.\n   */\n  get selectedChipIds(): ReadonlyArray<string> {\n    return this.foundation_.getSelectedChipIds();\n  }\n\n  private chips_!: MDCChip[]; // assigned in initialize()\n  private chipFactory_!: (el: Element) => MDCChip; // assigned in initialize()\n  private handleChipInteraction_!: (evt: MDCChipInteractionEvent) => void; // assigned in initialSyncWithDOM()\n  private handleChipSelection_!: (evt: MDCChipSelectionEvent) => void; // assigned in initialSyncWithDOM()\n  private handleChipRemoval_!: (evt: MDCChipRemovalEvent) => void; // assigned in initialSyncWithDOM()\n  private handleChipNavigation_!: (evt: MDCChipNavigationEvent) => void; // assigned in initialSyncWithDOM()\n\n  /**\n   * @param chipFactory A function which creates a new MDCChip.\n   */\n  initialize(chipFactory: MDCChipFactory = (el) => new MDCChip(el)) {\n    this.chipFactory_ = chipFactory;\n    this.chips_ = this.instantiateChips_(this.chipFactory_);\n  }\n\n  initialSyncWithDOM() {\n    this.chips_.forEach((chip) => {\n      if (chip.id && chip.selected) {\n        this.foundation_.select(chip.id);\n      }\n    });\n\n    this.handleChipInteraction_ = (evt) =>\n        this.foundation_.handleChipInteraction(evt.detail);\n    this.handleChipSelection_ = (evt) =>\n        this.foundation_.handleChipSelection(evt.detail);\n    this.handleChipRemoval_ = (evt) =>\n        this.foundation_.handleChipRemoval(evt.detail);\n    this.handleChipNavigation_ = (evt) =>\n        this.foundation_.handleChipNavigation(evt.detail);\n    this.listen(INTERACTION_EVENT, this.handleChipInteraction_);\n    this.listen(SELECTION_EVENT, this.handleChipSelection_);\n    this.listen(REMOVAL_EVENT, this.handleChipRemoval_);\n    this.listen(NAVIGATION_EVENT, this.handleChipNavigation_);\n  }\n\n  destroy() {\n    this.chips_.forEach((chip) => {\n      chip.destroy();\n    });\n\n    this.unlisten(INTERACTION_EVENT, this.handleChipInteraction_);\n    this.unlisten(SELECTION_EVENT, this.handleChipSelection_);\n    this.unlisten(REMOVAL_EVENT, this.handleChipRemoval_);\n    this.unlisten(NAVIGATION_EVENT, this.handleChipNavigation_);\n\n    super.destroy();\n  }\n\n  /**\n   * Adds a new chip object to the chip set from the given chip element.\n   */\n  addChip(chipEl: Element) {\n    chipEl.id = chipEl.id || `mdc-chip-${++idCounter}`;\n    this.chips_.push(this.chipFactory_(chipEl));\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    const adapter: MDCChipSetAdapter = {\n      announceMessage: (message) => {\n        announce(message);\n      },\n      focusChipPrimaryActionAtIndex: (index) => {\n        this.chips_[index].focusPrimaryAction();\n      },\n      focusChipTrailingActionAtIndex: (index) => {\n        this.chips_[index].focusTrailingAction();\n      },\n      getChipListCount: () => this.chips_.length,\n      getIndexOfChipById: (chipId) => {\n        return this.findChipIndex_(chipId);\n      },\n      hasClass: (className) => this.root_.classList.contains(className),\n      isRTL: () =>\n          window.getComputedStyle(this.root_).getPropertyValue('direction') ===\n          'rtl',\n      removeChipAtIndex: (index) => {\n        if (index >= 0 && index < this.chips_.length) {\n          this.chips_[index].destroy();\n          this.chips_[index].remove();\n          this.chips_.splice(index, 1);\n        }\n      },\n      removeFocusFromChipAtIndex: (index) => {\n        this.chips_[index].removeFocus();\n      },\n      selectChipAtIndex: (index, selected, shouldNotifyClients) => {\n        if (index >= 0 && index < this.chips_.length) {\n          this.chips_[index].setSelectedFromChipSet(selected, shouldNotifyClients);\n        }\n      },\n    };\n    return new MDCChipSetFoundation(adapter);\n  }\n\n  /**\n   * Instantiates chip components on all of the chip set's child chip elements.\n   */\n  private instantiateChips_(chipFactory: MDCChipFactory): MDCChip[] {\n    const chipElements: Element[] =\n        [].slice.call(this.root_.querySelectorAll(CHIP_SELECTOR));\n    return chipElements.map((el) => {\n      el.id = el.id || `mdc-chip-${++idCounter}`;\n      return chipFactory(el);\n    });\n  }\n\n  /**\n   * Returns the index of the chip with the given id, or -1 if the chip does not exist.\n   */\n  private findChipIndex_(chipId: string): number {\n    for (let i = 0; i < this.chips_.length; i++) {\n      if (this.chips_[i].id === chipId) {\n        return i;\n      }\n    }\n    return -1;\n  }\n}\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport const strings = {\n  CHIP_SELECTOR: '.mdc-chip',\n};\n\nexport const cssClasses = {\n  CHOICE: 'mdc-chip-set--choice',\n  FILTER: 'mdc-chip-set--filter',\n};\n","/**\n * @license\n * Copyright 2017 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\n\nimport {Direction, EventSource, jumpChipKeys, navigationKeys, strings as chipStrings} from '../chip/constants';\nimport {MDCChipInteractionEventDetail, MDCChipNavigationEventDetail, MDCChipRemovalEventDetail, MDCChipSelectionEventDetail} from '../chip/types';\n\nimport {MDCChipSetAdapter} from './adapter';\nimport {cssClasses, strings} from './constants';\n\nexport class MDCChipSetFoundation extends MDCFoundation<MDCChipSetAdapter> {\n  static get strings() {\n    return strings;\n  }\n\n  static get cssClasses() {\n    return cssClasses;\n  }\n\n  static get defaultAdapter(): MDCChipSetAdapter {\n    return {\n      announceMessage: () => undefined,\n      focusChipPrimaryActionAtIndex: () => undefined,\n      focusChipTrailingActionAtIndex: () => undefined,\n      getChipListCount: () => -1,\n      getIndexOfChipById: () => -1,\n      hasClass: () => false,\n      isRTL: () => false,\n      removeChipAtIndex: () => undefined,\n      removeFocusFromChipAtIndex: () => undefined,\n      selectChipAtIndex: () => undefined,\n    };\n  }\n\n  /**\n   * The ids of the selected chips in the set. Only used for choice chip set or filter chip set.\n   */\n  private selectedChipIds_: string[] = [];\n\n  constructor(adapter?: Partial<MDCChipSetAdapter>) {\n    super({...MDCChipSetFoundation.defaultAdapter, ...adapter});\n  }\n\n  /**\n   * Returns an array of the IDs of all selected chips.\n   */\n  getSelectedChipIds(): ReadonlyArray<string> {\n    return this.selectedChipIds_.slice();\n  }\n\n  /**\n   * Selects the chip with the given id. Deselects all other chips if the chip set is of the choice variant.\n   * Does not notify clients of the updated selection state.\n   */\n  select(chipId: string) {\n    this.select_(chipId, false);\n  }\n\n  /**\n   * Handles a chip interaction event\n   */\n  handleChipInteraction({chipId}: MDCChipInteractionEventDetail) {\n    const index = this.adapter_.getIndexOfChipById(chipId);\n    this.removeFocusFromChipsExcept_(index);\n    if (this.adapter_.hasClass(cssClasses.CHOICE) || this.adapter_.hasClass(cssClasses.FILTER)) {\n      this.toggleSelect_(chipId);\n    }\n  }\n\n  /**\n   * Handles a chip selection event, used to handle discrepancy when selection state is set directly on the Chip.\n   */\n  handleChipSelection({chipId, selected, shouldIgnore}:\n                          MDCChipSelectionEventDetail) {\n    // Early exit if we should ignore the event\n    if (shouldIgnore) {\n      return;\n    }\n\n    const chipIsSelected = this.selectedChipIds_.indexOf(chipId) >= 0;\n    if (selected && !chipIsSelected) {\n      this.select(chipId);\n    } else if (!selected && chipIsSelected) {\n      this.deselect_(chipId);\n    }\n  }\n\n  /**\n   * Handles the event when a chip is removed.\n   */\n  handleChipRemoval({chipId, removedAnnouncement}: MDCChipRemovalEventDetail) {\n    if (removedAnnouncement) {\n      this.adapter_.announceMessage(removedAnnouncement);\n    }\n\n    const index = this.adapter_.getIndexOfChipById(chipId);\n    this.deselectAndNotifyClients_(chipId);\n    this.adapter_.removeChipAtIndex(index);\n    const maxIndex = this.adapter_.getChipListCount() - 1;\n    const nextIndex = Math.min(index, maxIndex);\n    this.removeFocusFromChipsExcept_(nextIndex);\n    // After removing a chip, we should focus the trailing action for the next chip.\n    this.adapter_.focusChipTrailingActionAtIndex(nextIndex);\n  }\n\n  /**\n   * Handles a chip navigation event.\n   */\n  handleChipNavigation({chipId, key, source}: MDCChipNavigationEventDetail) {\n    const maxIndex = this.adapter_.getChipListCount() - 1;\n    let index = this.adapter_.getIndexOfChipById(chipId);\n    // Early exit if the index is out of range or the key is unusable\n    if (index === -1 || !navigationKeys.has(key)) {\n      return;\n    }\n\n    const isRTL = this.adapter_.isRTL();\n    const shouldIncrement = key === chipStrings.ARROW_RIGHT_KEY && !isRTL\n        || key === chipStrings.ARROW_LEFT_KEY && isRTL\n        || key === chipStrings.ARROW_DOWN_KEY;\n    const isHome = key === chipStrings.HOME_KEY;\n    const isEnd = key === chipStrings.END_KEY;\n    if (shouldIncrement) {\n      index++;\n    } else if (isHome) {\n      index = 0;\n    } else if (isEnd) {\n      index = maxIndex;\n    } else {\n      index--;\n    }\n\n    // Early exit if the index is out of bounds\n    if (index < 0 || index > maxIndex) {\n      return;\n    }\n\n    this.removeFocusFromChipsExcept_(index);\n    this.focusChipAction_(index, key, source);\n  }\n\n  private focusChipAction_(index: number, key: string, source: EventSource) {\n    const shouldJumpChips = jumpChipKeys.has(key);\n    if (shouldJumpChips && source === EventSource.PRIMARY) {\n      return this.adapter_.focusChipPrimaryActionAtIndex(index);\n    }\n\n    if (shouldJumpChips && source === EventSource.TRAILING) {\n      return this.adapter_.focusChipTrailingActionAtIndex(index);\n    }\n\n    const dir = this.getDirection_(key);\n    if (dir === Direction.LEFT) {\n      return this.adapter_.focusChipTrailingActionAtIndex(index);\n    }\n\n    if (dir === Direction.RIGHT) {\n      return this.adapter_.focusChipPrimaryActionAtIndex(index);\n    }\n  }\n\n  private getDirection_(key: string): Direction {\n    const isRTL = this.adapter_.isRTL();\n    if (key === chipStrings.ARROW_LEFT_KEY && !isRTL || key === chipStrings.ARROW_RIGHT_KEY && isRTL) {\n      return Direction.LEFT;\n    }\n\n    return Direction.RIGHT;\n  }\n\n  /**\n   * Deselects the chip with the given id and optionally notifies clients.\n   */\n  private deselect_(chipId: string, shouldNotifyClients = false) {\n    const index = this.selectedChipIds_.indexOf(chipId);\n    if (index >= 0) {\n      this.selectedChipIds_.splice(index, 1);\n      const chipIndex = this.adapter_.getIndexOfChipById(chipId);\n      this.adapter_.selectChipAtIndex(chipIndex, /** isSelected */ false, shouldNotifyClients);\n    }\n  }\n\n  /**\n   * Deselects the chip with the given id and notifies clients.\n   */\n  private deselectAndNotifyClients_(chipId: string) {\n    this.deselect_(chipId, true);\n  }\n\n  /**\n   * Toggles selection of the chip with the given id.\n   */\n  private toggleSelect_(chipId: string) {\n    if (this.selectedChipIds_.indexOf(chipId) >= 0) {\n      this.deselectAndNotifyClients_(chipId);\n    } else {\n      this.selectAndNotifyClients_(chipId);\n    }\n  }\n\n  private removeFocusFromChipsExcept_(index: number) {\n    const chipCount = this.adapter_.getChipListCount();\n    for (let i = 0; i < chipCount; i++) {\n      if (i !== index) {\n        this.adapter_.removeFocusFromChipAtIndex(i);\n      }\n    }\n  }\n\n  private selectAndNotifyClients_(chipId: string) {\n    this.select_(chipId, true);\n  }\n\n  private select_(chipId: string, shouldNotifyClients: boolean) {\n    if (this.selectedChipIds_.indexOf(chipId) >= 0) {\n      return;\n    }\n\n    if (this.adapter_.hasClass(cssClasses.CHOICE) && this.selectedChipIds_.length > 0) {\n      const previouslySelectedChip = this.selectedChipIds_[0];\n      const previouslySelectedIndex = this.adapter_.getIndexOfChipById(previouslySelectedChip);\n      this.selectedChipIds_ = [];\n      this.adapter_.selectChipAtIndex(previouslySelectedIndex, /** isSelected */ false, shouldNotifyClients);\n    }\n    this.selectedChipIds_.push(chipId);\n    const index = this.adapter_.getIndexOfChipById(chipId);\n    this.adapter_.selectChipAtIndex(index, /** isSelected */ true, shouldNotifyClients);\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCChipSetFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport * from './adapter';\nexport * from './component';\nexport * from './foundation';\nexport {cssClasses as chipSetCssClasses, strings as chipSetStrings} from './constants';\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {SpecificEventListener} from '@material/base/types';\nimport {MDCRippleAdapter} from '@material/ripple/adapter';\nimport {MDCRipple, MDCRippleFactory} from '@material/ripple/component';\nimport {MDCRippleFoundation} from '@material/ripple/foundation';\nimport {MDCRippleCapableSurface} from '@material/ripple/types';\nimport {MDCChipAdapter} from './adapter';\nimport {strings} from './constants';\nimport {MDCChipFoundation} from './foundation';\nimport {MDCChipInteractionEventDetail, MDCChipNavigationEventDetail, MDCChipRemovalEventDetail,\n    MDCChipSelectionEventDetail} from './types';\n\ntype InteractionType = 'click' | 'keydown';\n\nconst INTERACTION_EVENTS: InteractionType[] = ['click', 'keydown'];\n\nexport type MDCChipFactory = (el: Element, foundation?: MDCChipFoundation) => MDCChip;\n\nexport class MDCChip extends MDCComponent<MDCChipFoundation> implements MDCRippleCapableSurface {\n  /**\n   * @return Whether the chip is selected.\n   */\n  get selected(): boolean {\n    return this.foundation_.isSelected();\n  }\n\n  /**\n   * Sets selected state on the chip.\n   */\n  set selected(selected: boolean) {\n    this.foundation_.setSelected(selected);\n  }\n\n  /**\n   * @return Whether a trailing icon click should trigger exit/removal of the chip.\n   */\n  get shouldRemoveOnTrailingIconClick(): boolean {\n    return this.foundation_.getShouldRemoveOnTrailingIconClick();\n  }\n\n  /**\n   * Sets whether a trailing icon click should trigger exit/removal of the chip.\n   */\n  set shouldRemoveOnTrailingIconClick(shouldRemove: boolean) {\n    this.foundation_.setShouldRemoveOnTrailingIconClick(shouldRemove);\n  }\n\n  get ripple(): MDCRipple {\n    return this.ripple_;\n  }\n\n  get id(): string {\n    return this.root_.id;\n  }\n\n  static attachTo(root: Element) {\n    return new MDCChip(root);\n  }\n\n  // Public visibility for this property is required by MDCRippleCapableSurface.\n  root_!: HTMLElement; // assigned in MDCComponent constructor\n\n  private leadingIcon_!: Element | null; // assigned in initialize()\n  private trailingIcon_!: Element | null; // assigned in initialize()\n  private checkmark_!: Element | null; // assigned in initialize()\n  private ripple_!: MDCRipple; // assigned in initialize()\n  private primaryAction_!: Element | null; // assigned in initialize()\n  private trailingAction_!: Element | null; // assigned in initialize()\n\n  private handleInteraction_!: SpecificEventListener<InteractionType>; // assigned in initialSyncWithDOM()\n  private handleTransitionEnd_!: SpecificEventListener<'transitionend'>; // assigned in initialSyncWithDOM()\n  private handleTrailingIconInteraction_!: SpecificEventListener<InteractionType>; // assigned in initialSyncWithDOM()\n  private handleKeydown_!: SpecificEventListener<'keydown'>; // assigned in initialSyncWithDOM()\n\n  initialize(rippleFactory: MDCRippleFactory = (el, foundation) => new MDCRipple(el, foundation)) {\n    this.leadingIcon_ = this.root_.querySelector(strings.LEADING_ICON_SELECTOR);\n    this.trailingIcon_ = this.root_.querySelector(strings.TRAILING_ICON_SELECTOR);\n    this.checkmark_ = this.root_.querySelector(strings.CHECKMARK_SELECTOR);\n    this.primaryAction_ = this.root_.querySelector(strings.PRIMARY_ACTION_SELECTOR);\n    this.trailingAction_ = this.root_.querySelector(strings.TRAILING_ACTION_SELECTOR);\n\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    const rippleAdapter: MDCRippleAdapter = {\n      ...MDCRipple.createAdapter(this),\n      computeBoundingRect: () => this.foundation_.getDimensions(),\n    };\n    this.ripple_ = rippleFactory(this.root_, new MDCRippleFoundation(rippleAdapter));\n  }\n\n  initialSyncWithDOM() {\n    this.handleInteraction_ = (evt: MouseEvent | KeyboardEvent) => this.foundation_.handleInteraction(evt);\n    this.handleTransitionEnd_ = (evt: TransitionEvent) => this.foundation_.handleTransitionEnd(evt);\n    this.handleTrailingIconInteraction_ = (evt: MouseEvent | KeyboardEvent) =>\n        this.foundation_.handleTrailingIconInteraction(evt);\n    this.handleKeydown_ = (evt: KeyboardEvent) => this.foundation_.handleKeydown(evt);\n\n    INTERACTION_EVENTS.forEach((evtType) => {\n      this.listen(evtType, this.handleInteraction_);\n    });\n    this.listen('transitionend', this.handleTransitionEnd_);\n    this.listen('keydown', this.handleKeydown_);\n\n    if (this.trailingIcon_) {\n      INTERACTION_EVENTS.forEach((evtType) => {\n        this.trailingIcon_!.addEventListener(evtType, this.handleTrailingIconInteraction_ as EventListener);\n      });\n    }\n  }\n\n  destroy() {\n    this.ripple_.destroy();\n\n    INTERACTION_EVENTS.forEach((evtType) => {\n      this.unlisten(evtType, this.handleInteraction_);\n    });\n    this.unlisten('transitionend', this.handleTransitionEnd_);\n    this.unlisten('keydown', this.handleKeydown_);\n\n    if (this.trailingIcon_) {\n      INTERACTION_EVENTS.forEach((evtType) => {\n        this.trailingIcon_!.removeEventListener(evtType, this.handleTrailingIconInteraction_ as EventListener);\n      });\n    }\n\n    super.destroy();\n  }\n\n  /**\n   * Begins the exit animation which leads to removal of the chip.\n   */\n  beginExit() {\n    this.foundation_.beginExit();\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    const adapter: MDCChipAdapter = {\n      addClass: (className) => this.root_.classList.add(className),\n      addClassToLeadingIcon: (className) => {\n        if (this.leadingIcon_) {\n          this.leadingIcon_.classList.add(className);\n        }\n      },\n      eventTargetHasClass: (target, className) =>\n          target ? (target as Element).classList.contains(className) : false,\n      focusPrimaryAction: () => {\n        if (this.primaryAction_) {\n          (this.primaryAction_ as HTMLElement).focus();\n        }\n      },\n      focusTrailingAction: () => {\n        if (this.trailingAction_) {\n          (this.trailingAction_ as HTMLElement).focus();\n        }\n      },\n      getAttribute: (attr) => this.root_.getAttribute(attr),\n      getCheckmarkBoundingClientRect: () =>\n          this.checkmark_ ? this.checkmark_.getBoundingClientRect() : null,\n      getComputedStyleValue: (propertyName) =>\n          window.getComputedStyle(this.root_).getPropertyValue(propertyName),\n      getRootBoundingClientRect: () => this.root_.getBoundingClientRect(),\n      hasClass: (className) => this.root_.classList.contains(className),\n      hasLeadingIcon: () => !!this.leadingIcon_,\n      hasTrailingAction: () => !!this.trailingAction_,\n      isRTL: () =>\n          window.getComputedStyle(this.root_).getPropertyValue('direction') ===\n          'rtl',\n      notifyInteraction: () => this.emit<MDCChipInteractionEventDetail>(\n          strings.INTERACTION_EVENT, {chipId: this.id},\n          true /* shouldBubble */),\n      notifyNavigation: (key, source) =>\n          this.emit<MDCChipNavigationEventDetail>(\n              strings.NAVIGATION_EVENT, {chipId: this.id, key, source},\n              true /* shouldBubble */),\n      notifyRemoval: (removedAnnouncement) => {\n        this.emit<MDCChipRemovalEventDetail>(\n            strings.REMOVAL_EVENT, {chipId: this.id, removedAnnouncement},\n            true /* shouldBubble */);\n      },\n      notifySelection: (selected, shouldIgnore) =>\n          this.emit<MDCChipSelectionEventDetail>(\n              strings.SELECTION_EVENT,\n              {chipId: this.id, selected, shouldIgnore},\n              true /* shouldBubble */),\n      notifyTrailingIconInteraction: () =>\n          this.emit<MDCChipInteractionEventDetail>(\n              strings.TRAILING_ICON_INTERACTION_EVENT, {chipId: this.id},\n              true /* shouldBubble */),\n      removeClass: (className) => this.root_.classList.remove(className),\n      removeClassFromLeadingIcon: (className) => {\n        if (this.leadingIcon_) {\n          this.leadingIcon_.classList.remove(className);\n        }\n      },\n      setPrimaryActionAttr: (attr, value) => {\n        if (this.primaryAction_) {\n          this.primaryAction_.setAttribute(attr, value);\n        }\n      },\n      setStyleProperty: (propertyName, value) =>\n          this.root_.style.setProperty(propertyName, value),\n      setTrailingActionAttr: (attr, value) => {\n        if (this.trailingAction_) {\n          this.trailingAction_.setAttribute(attr, value);\n        }\n      },\n    };\n    return new MDCChipFoundation(adapter);\n  }\n\n  setSelectedFromChipSet(selected: boolean, shouldNotifyClients: boolean) {\n    this.foundation_.setSelectedFromChipSet(selected, shouldNotifyClients);\n  }\n\n  focusPrimaryAction() {\n    this.foundation_.focusPrimaryAction();\n  }\n\n  focusTrailingAction() {\n    this.foundation_.focusTrailingAction();\n  }\n\n  removeFocus() {\n    this.foundation_.removeFocus();\n  }\n\n  remove() {\n    const parent = this.root_.parentNode;\n    if (parent !== null) {\n      parent.removeChild(this.root_);\n    }\n  }\n}\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport enum Direction {\n  RIGHT,\n  LEFT,\n}\n\nexport enum EventSource {\n  PRIMARY,\n  TRAILING,\n  NONE,\n}\n\nexport const strings = {\n  ADDED_ANNOUNCEMENT_ATTRIBUTE: 'data-mdc-chip-added-announcement',\n  ARIA_CHECKED: 'aria-checked',\n  ARROW_DOWN_KEY: 'ArrowDown',\n  ARROW_LEFT_KEY: 'ArrowLeft',\n  ARROW_RIGHT_KEY: 'ArrowRight',\n  ARROW_UP_KEY: 'ArrowUp',\n  BACKSPACE_KEY: 'Backspace',\n  CHECKMARK_SELECTOR: '.mdc-chip__checkmark',\n  DELETE_KEY: 'Delete',\n  END_KEY: 'End',\n  ENTER_KEY: 'Enter',\n  ENTRY_ANIMATION_NAME: 'mdc-chip-entry',\n  HOME_KEY: 'Home',\n  INTERACTION_EVENT: 'MDCChip:interaction',\n  LEADING_ICON_SELECTOR: '.mdc-chip__icon--leading',\n  NAVIGATION_EVENT: 'MDCChip:navigation',\n  PRIMARY_ACTION_SELECTOR: '.mdc-chip__primary-action',\n  REMOVED_ANNOUNCEMENT_ATTRIBUTE: 'data-mdc-chip-removed-announcement',\n  REMOVAL_EVENT: 'MDCChip:removal',\n  SELECTION_EVENT: 'MDCChip:selection',\n  SPACEBAR_KEY: ' ',\n  TAB_INDEX: 'tabindex',\n  TRAILING_ACTION_SELECTOR: '.mdc-chip__trailing-action',\n  TRAILING_ICON_INTERACTION_EVENT: 'MDCChip:trailingIconInteraction',\n  TRAILING_ICON_SELECTOR: '.mdc-chip__icon--trailing',\n};\n\nexport const cssClasses = {\n  CHECKMARK: 'mdc-chip__checkmark',\n  CHIP_EXIT: 'mdc-chip--exit',\n  DELETABLE: 'mdc-chip--deletable',\n  HIDDEN_LEADING_ICON: 'mdc-chip__icon--leading-hidden',\n  LEADING_ICON: 'mdc-chip__icon--leading',\n  PRIMARY_ACTION: 'mdc-chip__primary-action',\n  SELECTED: 'mdc-chip--selected',\n  TEXT: 'mdc-chip__text',\n  TRAILING_ACTION: 'mdc-chip__trailing-action',\n  TRAILING_ICON: 'mdc-chip__icon--trailing',\n};\n\nexport const navigationKeys = new Set<string>();\n// IE11 has no support for new Set with iterable so we need to initialize this by hand\nnavigationKeys.add(strings.ARROW_LEFT_KEY);\nnavigationKeys.add(strings.ARROW_RIGHT_KEY);\nnavigationKeys.add(strings.ARROW_DOWN_KEY);\nnavigationKeys.add(strings.ARROW_UP_KEY);\nnavigationKeys.add(strings.END_KEY);\nnavigationKeys.add(strings.HOME_KEY);\n\nexport const jumpChipKeys = new Set<string>();\n// IE11 has no support for new Set with iterable so we need to initialize this by hand\njumpChipKeys.add(strings.ARROW_UP_KEY);\njumpChipKeys.add(strings.ARROW_DOWN_KEY);\njumpChipKeys.add(strings.HOME_KEY);\njumpChipKeys.add(strings.END_KEY);\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {MDCChipAdapter} from './adapter';\nimport {cssClasses, Direction, EventSource, jumpChipKeys, navigationKeys, strings} from './constants';\n\nconst emptyClientRect = {\n  bottom: 0,\n  height: 0,\n  left: 0,\n  right: 0,\n  top: 0,\n  width: 0,\n};\n\nexport class MDCChipFoundation extends MDCFoundation<MDCChipAdapter> {\n  static get strings() {\n    return strings;\n  }\n\n  static get cssClasses() {\n    return cssClasses;\n  }\n\n  static get defaultAdapter(): MDCChipAdapter {\n    return {\n      addClass: () => undefined,\n      addClassToLeadingIcon: () => undefined,\n      eventTargetHasClass: () => false,\n      focusPrimaryAction: () => undefined,\n      focusTrailingAction: () => undefined,\n      getAttribute: () => null,\n      getCheckmarkBoundingClientRect: () => emptyClientRect,\n      getComputedStyleValue: () => '',\n      getRootBoundingClientRect: () => emptyClientRect,\n      hasClass: () => false,\n      hasLeadingIcon: () => false,\n      hasTrailingAction: () => false,\n      isRTL: () => false,\n      notifyInteraction: () => undefined,\n      notifyNavigation: () => undefined,\n      notifyRemoval: () => undefined,\n      notifySelection: () => undefined,\n      notifyTrailingIconInteraction: () => undefined,\n      removeClass: () => undefined,\n      removeClassFromLeadingIcon: () => undefined,\n      setPrimaryActionAttr: () => undefined,\n      setStyleProperty: () => undefined,\n      setTrailingActionAttr: () => undefined,\n    };\n  }\n\n  /** Whether a trailing icon click should immediately trigger exit/removal of the chip. */\n  private shouldRemoveOnTrailingIconClick_ = true;\n\n  constructor(adapter?: Partial<MDCChipAdapter>) {\n    super({...MDCChipFoundation.defaultAdapter, ...adapter});\n  }\n\n  isSelected() {\n    return this.adapter_.hasClass(cssClasses.SELECTED);\n  }\n\n  setSelected(selected: boolean) {\n    this.setSelected_(selected);\n    this.notifySelection_(selected);\n  }\n\n  setSelectedFromChipSet(selected: boolean, shouldNotifyClients: boolean) {\n    this.setSelected_(selected);\n    if (shouldNotifyClients) {\n      this.notifyIgnoredSelection_(selected);\n    }\n  }\n\n  getShouldRemoveOnTrailingIconClick() {\n    return this.shouldRemoveOnTrailingIconClick_;\n  }\n\n  setShouldRemoveOnTrailingIconClick(shouldRemove: boolean) {\n    this.shouldRemoveOnTrailingIconClick_ = shouldRemove;\n  }\n\n  getDimensions(): ClientRect {\n    const getRootRect = () => this.adapter_.getRootBoundingClientRect();\n    const getCheckmarkRect = () => this.adapter_.getCheckmarkBoundingClientRect();\n\n    // When a chip has a checkmark and not a leading icon, the bounding rect changes in size depending on the current\n    // size of the checkmark.\n    if (!this.adapter_.hasLeadingIcon()) {\n      const checkmarkRect = getCheckmarkRect();\n      if (checkmarkRect) {\n        const rootRect = getRootRect();\n        // Checkmark is a square, meaning the client rect's width and height are identical once the animation completes.\n        // However, the checkbox is initially hidden by setting the width to 0.\n        // To account for an initial width of 0, we use the checkbox's height instead (which equals the end-state width)\n        // when adding it to the root client rect's width.\n        return {\n          bottom: rootRect.bottom,\n          height: rootRect.height,\n          left: rootRect.left,\n          right: rootRect.right,\n          top: rootRect.top,\n          width: rootRect.width + checkmarkRect.height,\n        };\n      }\n    }\n\n    return getRootRect();\n  }\n\n  /**\n   * Begins the exit animation which leads to removal of the chip.\n   */\n  beginExit() {\n    this.adapter_.addClass(cssClasses.CHIP_EXIT);\n  }\n\n  /**\n   * Handles an interaction event on the root element.\n   */\n  handleInteraction(evt: MouseEvent | KeyboardEvent) {\n    if (this.shouldHandleInteraction_(evt)) {\n      this.adapter_.notifyInteraction();\n      this.focusPrimaryAction_();\n    }\n  }\n\n  /**\n   * Handles a transition end event on the root element.\n   */\n  handleTransitionEnd(evt: TransitionEvent) {\n    // Handle transition end event on the chip when it is about to be removed.\n    const shouldHandle = this.adapter_.eventTargetHasClass(evt.target, cssClasses.CHIP_EXIT);\n    const widthIsAnimating = evt.propertyName === 'width';\n    const opacityIsAnimating = evt.propertyName === 'opacity';\n\n    if (shouldHandle && opacityIsAnimating) {\n      // See: https://css-tricks.com/using-css-transitions-auto-dimensions/#article-header-id-5\n      const chipWidth = this.adapter_.getComputedStyleValue('width');\n\n      // On the next frame (once we get the computed width), explicitly set the chip's width\n      // to its current pixel width, so we aren't transitioning out of 'auto'.\n      requestAnimationFrame(() => {\n        this.adapter_.setStyleProperty('width', chipWidth);\n\n        // To mitigate jitter, start transitioning padding and margin before width.\n        this.adapter_.setStyleProperty('padding', '0');\n        this.adapter_.setStyleProperty('margin', '0');\n\n        // On the next frame (once width is explicitly set), transition width to 0.\n        requestAnimationFrame(() => {\n          this.adapter_.setStyleProperty('width', '0');\n        });\n      });\n      return;\n    }\n\n    if (shouldHandle && widthIsAnimating) {\n      this.removeFocus_();\n      const removedAnnouncement =\n          this.adapter_.getAttribute(strings.REMOVED_ANNOUNCEMENT_ATTRIBUTE);\n\n      this.adapter_.notifyRemoval(removedAnnouncement);\n    }\n\n    // Handle a transition end event on the leading icon or checkmark, since the transition end event bubbles.\n    if (!opacityIsAnimating) {\n      return;\n    }\n\n    const shouldHideLeadingIcon = this.adapter_.eventTargetHasClass(evt.target, cssClasses.LEADING_ICON)\n      && this.adapter_.hasClass(cssClasses.SELECTED);\n    const shouldShowLeadingIcon = this.adapter_.eventTargetHasClass(evt.target, cssClasses.CHECKMARK)\n      && !this.adapter_.hasClass(cssClasses.SELECTED);\n\n    if (shouldHideLeadingIcon) {\n      return this.adapter_.addClassToLeadingIcon(cssClasses.HIDDEN_LEADING_ICON);\n    }\n\n    if (shouldShowLeadingIcon) {\n      return this.adapter_.removeClassFromLeadingIcon(cssClasses.HIDDEN_LEADING_ICON);\n    }\n  }\n\n  /**\n   * Handles an interaction event on the trailing icon element. This is used to\n   * prevent the ripple from activating on interaction with the trailing icon.\n   */\n  handleTrailingIconInteraction(evt: MouseEvent | KeyboardEvent) {\n    if (this.shouldHandleInteraction_(evt)) {\n      this.adapter_.notifyTrailingIconInteraction();\n      this.removeChip_(evt);\n    }\n  }\n\n  /**\n   * Handles a keydown event from the root element.\n   */\n  handleKeydown(evt: KeyboardEvent) {\n    if (this.shouldRemoveChip_(evt)) {\n      return this.removeChip_(evt);\n    }\n\n    const key = evt.key;\n    // Early exit if the key is not usable\n    if (!navigationKeys.has(key)) {\n      return;\n    }\n\n    // Prevent default behavior for movement keys which could include scrolling\n    evt.preventDefault();\n    this.focusNextAction_(evt);\n  }\n\n  removeFocus() {\n    this.adapter_.setPrimaryActionAttr(strings.TAB_INDEX, '-1');\n    this.adapter_.setTrailingActionAttr(strings.TAB_INDEX, '-1');\n  }\n\n  focusPrimaryAction() {\n    this.focusPrimaryAction_();\n  }\n\n  focusTrailingAction() {\n    if (!this.adapter_.hasTrailingAction()) {\n      return this.focusPrimaryAction_();\n    }\n    this.focusTrailingAction_();\n  }\n\n  private focusNextAction_(evt: KeyboardEvent) {\n    const key = evt.key;\n    const hasTrailingAction = this.adapter_.hasTrailingAction();\n    const dir = this.getDirection_(key);\n    const source = this.getEvtSource_(evt);\n    // Early exit if the key should jump keys or the chip only has one action (i.e. no trailing action)\n    if (jumpChipKeys.has(key) || !hasTrailingAction) {\n      this.adapter_.notifyNavigation(key, source);\n      return;\n    }\n\n    if (source === EventSource.PRIMARY && dir === Direction.RIGHT) {\n      return this.focusTrailingAction_();\n    }\n\n    if (source === EventSource.TRAILING && dir === Direction.LEFT) {\n      return this.focusPrimaryAction_();\n    }\n\n    this.adapter_.notifyNavigation(key, EventSource.NONE);\n  }\n\n  private getEvtSource_(evt: KeyboardEvent): EventSource {\n    if (this.adapter_.eventTargetHasClass(evt.target, cssClasses.PRIMARY_ACTION)) {\n      return EventSource.PRIMARY;\n    }\n\n    if (this.adapter_.eventTargetHasClass(evt.target, cssClasses.TRAILING_ACTION)) {\n      return EventSource.TRAILING;\n    }\n\n    return EventSource.NONE;\n  }\n\n  private getDirection_(key: string): Direction {\n    const isRTL = this.adapter_.isRTL();\n    if (key === strings.ARROW_LEFT_KEY && !isRTL || key === strings.ARROW_RIGHT_KEY && isRTL) {\n      return Direction.LEFT;\n    }\n\n    return Direction.RIGHT;\n  }\n\n  private focusPrimaryAction_() {\n    this.adapter_.setPrimaryActionAttr(strings.TAB_INDEX, '0');\n    this.adapter_.focusPrimaryAction();\n    this.adapter_.setTrailingActionAttr(strings.TAB_INDEX, '-1');\n  }\n\n  private focusTrailingAction_() {\n    this.adapter_.setTrailingActionAttr(strings.TAB_INDEX, '0');\n    this.adapter_.focusTrailingAction();\n    this.adapter_.setPrimaryActionAttr(strings.TAB_INDEX, '-1');\n  }\n\n  private removeFocus_() {\n    this.adapter_.setTrailingActionAttr(strings.TAB_INDEX, '-1');\n    this.adapter_.setPrimaryActionAttr(strings.TAB_INDEX, '-1');\n  }\n\n  private removeChip_(evt: MouseEvent|KeyboardEvent) {\n    evt.stopPropagation();\n    // Prevent default behavior for backspace on Firefox which causes a page\n    // navigation.\n    evt.preventDefault();\n    if (this.shouldRemoveOnTrailingIconClick_) {\n      this.beginExit();\n    }\n  }\n\n  private shouldHandleInteraction_(evt: MouseEvent|KeyboardEvent): boolean {\n    if (evt.type === 'click') {\n      return true;\n    }\n\n    const keyEvt = evt as KeyboardEvent;\n    return keyEvt.key === strings.ENTER_KEY || keyEvt.key === strings.SPACEBAR_KEY;\n  }\n\n  private shouldRemoveChip_(evt: KeyboardEvent): boolean {\n    const isDeletable = this.adapter_.hasClass(cssClasses.DELETABLE);\n    return isDeletable && (evt.key === strings.BACKSPACE_KEY || evt.key === strings.DELETE_KEY);\n  }\n\n  private setSelected_(selected: boolean) {\n    if (selected) {\n      this.adapter_.addClass(cssClasses.SELECTED);\n      this.adapter_.setPrimaryActionAttr(strings.ARIA_CHECKED, 'true');\n    } else {\n      this.adapter_.removeClass(cssClasses.SELECTED);\n      this.adapter_.setPrimaryActionAttr(strings.ARIA_CHECKED, 'false');\n    }\n  }\n\n  private notifySelection_(selected: boolean) {\n    this.adapter_.notifySelection(selected, false);\n  }\n\n  private notifyIgnoredSelection_(selected: boolean) {\n    this.adapter_.notifySelection(selected, true);\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCChipFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport * from './adapter';\nexport * from './component';\nexport * from './foundation';\nexport * from './types';\nexport {cssClasses as chipCssClasses, strings as chipStrings} from './constants';\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport * from './chip/index';\nexport * from './chip-set/index';\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {SpecificEventListener} from '@material/base/types';\nimport {MDCCheckbox, MDCCheckboxFactory} from '@material/checkbox/component';\nimport {closest} from '@material/dom/ponyfill';\nimport {MDCDataTableAdapter} from './adapter';\nimport {cssClasses, events, strings} from './constants';\nimport {MDCDataTableFoundation} from './foundation';\nimport {MDCDataTableRowSelectionChangedEventDetail} from './types';\n\nexport class MDCDataTable extends MDCComponent<MDCDataTableFoundation> {\n  static attachTo(root: Element): MDCDataTable {\n    return new MDCDataTable(root);\n  }\n\n  private headerRowCheckbox_!: MDCCheckbox;\n  private rowCheckboxList_!: MDCCheckbox[];\n  private checkboxFactory_!: MDCCheckboxFactory;\n  private headerRow_!: HTMLElement;\n  private content_!: HTMLElement;\n  private handleHeaderRowCheckboxChange_!: SpecificEventListener<'change'>;\n  private handleRowCheckboxChange_!: SpecificEventListener<'change'>;\n\n  initialize(checkboxFactory: MDCCheckboxFactory = (el: Element) => new MDCCheckbox(el)) {\n    this.checkboxFactory_ = checkboxFactory;\n  }\n\n  initialSyncWithDOM() {\n    this.headerRow_ = this.root_.querySelector(`.${cssClasses.HEADER_ROW}`) as HTMLElement;\n    this.handleHeaderRowCheckboxChange_ = () => this.foundation_.handleHeaderRowCheckboxChange();\n    this.headerRow_.addEventListener('change', this.handleHeaderRowCheckboxChange_);\n\n    this.content_ = this.root_.querySelector(`.${cssClasses.CONTENT}`) as HTMLElement;\n    this.handleRowCheckboxChange_ = (event) => this.foundation_.handleRowCheckboxChange(event);\n    this.content_.addEventListener('change', this.handleRowCheckboxChange_);\n\n    this.layout();\n  }\n\n  /**\n   * Re-initializes header row checkbox and row checkboxes when selectable rows are added or removed from table.\n   */\n  layout() {\n    this.foundation_.layout();\n  }\n\n  /**\n   * @return Returns array of row elements.\n   */\n  getRows(): Element[] {\n    return this.foundation_.getRows();\n  }\n\n  /**\n   * @return Returns array of selected row ids.\n   */\n  getSelectedRowIds(): Array<string|null> {\n    return this.foundation_.getSelectedRowIds();\n  }\n\n  /**\n   * Sets selected row ids. Overwrites previously selected rows.\n   * @param rowIds Array of row ids that needs to be selected.\n   */\n  setSelectedRowIds(rowIds: string[]) {\n    this.foundation_.setSelectedRowIds(rowIds);\n  }\n\n  destroy() {\n    this.headerRow_.removeEventListener('change', this.handleHeaderRowCheckboxChange_);\n    this.content_.removeEventListener('change', this.handleRowCheckboxChange_);\n\n    this.headerRowCheckbox_.destroy();\n    this.rowCheckboxList_.forEach((checkbox) => checkbox.destroy());\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    const adapter: MDCDataTableAdapter = {\n      addClassAtRowIndex: (rowIndex: number, className: string) => this.getRows()[rowIndex].classList.add(className),\n      getRowCount: () => this.getRows().length,\n      getRowElements: () => [].slice.call(this.root_.querySelectorAll(strings.ROW_SELECTOR)),\n      getRowIdAtIndex: (rowIndex: number) => this.getRows()[rowIndex].getAttribute(strings.DATA_ROW_ID_ATTR),\n      getRowIndexByChildElement: (el: Element) => {\n        return this.getRows().indexOf((closest(el, strings.ROW_SELECTOR) as HTMLElement));\n      },\n      getSelectedRowCount: () => this.root_.querySelectorAll(strings.ROW_SELECTED_SELECTOR).length,\n      isCheckboxAtRowIndexChecked: (rowIndex: number) => this.rowCheckboxList_[rowIndex].checked,\n      isHeaderRowCheckboxChecked: () => this.headerRowCheckbox_.checked,\n      isRowsSelectable: () => !!this.root_.querySelector(strings.ROW_CHECKBOX_SELECTOR),\n      notifyRowSelectionChanged: (data: MDCDataTableRowSelectionChangedEventDetail) => {\n        this.emit(events.ROW_SELECTION_CHANGED, {\n          row: this.getRowByIndex_(data.rowIndex),\n          rowId: this.getRowIdByIndex_(data.rowIndex),\n          rowIndex: data.rowIndex,\n          selected: data.selected,\n        },\n        /** shouldBubble */ true);\n      },\n      notifySelectedAll: () => this.emit(events.SELECTED_ALL, {}, /** shouldBubble */ true),\n      notifyUnselectedAll: () => this.emit(events.UNSELECTED_ALL, {}, /** shouldBubble */ true),\n      registerHeaderRowCheckbox: () => {\n        if (this.headerRowCheckbox_) {\n          this.headerRowCheckbox_.destroy();\n        }\n\n        const checkboxEl = (this.root_.querySelector(strings.HEADER_ROW_CHECKBOX_SELECTOR) as HTMLElement);\n        this.headerRowCheckbox_ = this.checkboxFactory_(checkboxEl);\n      },\n      registerRowCheckboxes: () => {\n        if (this.rowCheckboxList_) {\n          this.rowCheckboxList_.forEach((checkbox) => checkbox.destroy());\n        }\n\n        this.rowCheckboxList_ = [];\n        this.getRows().forEach((rowEl) => {\n          const checkbox = this.checkboxFactory_((rowEl.querySelector(strings.ROW_CHECKBOX_SELECTOR) as HTMLElement));\n          this.rowCheckboxList_.push(checkbox);\n        });\n      },\n      removeClassAtRowIndex: (rowIndex: number, className: string) => {\n        this.getRows()[rowIndex].classList.remove(className);\n      },\n      setAttributeAtRowIndex: (rowIndex: number, attr: string, value: string) => {\n        this.getRows()[rowIndex].setAttribute(attr, value);\n      },\n      setHeaderRowCheckboxChecked: (checked: boolean) => {\n        this.headerRowCheckbox_.checked = checked;\n      },\n      setHeaderRowCheckboxIndeterminate: (indeterminate: boolean) => {\n        this.headerRowCheckbox_.indeterminate = indeterminate;\n      },\n      setRowCheckboxCheckedAtIndex: (rowIndex: number, checked: boolean) => {\n        this.rowCheckboxList_[rowIndex].checked = checked;\n      },\n    };\n    return new MDCDataTableFoundation(adapter);\n  }\n\n  private getRowByIndex_(index: number): Element {\n    return this.getRows()[index];\n  }\n\n  private getRowIdByIndex_(index: number): string | null {\n    return this.getRowByIndex_(index).getAttribute(strings.DATA_ROW_ID_ATTR);\n  }\n}\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport const cssClasses = {\n  CELL: 'mdc-data-table__cell',\n  CELL_NUMERIC: 'mdc-data-table__cell--numeric',\n  CONTENT: 'mdc-data-table__content',\n  HEADER_ROW: 'mdc-data-table__header-row',\n  HEADER_ROW_CHECKBOX: 'mdc-data-table__header-row-checkbox',\n  ROOT: 'mdc-data-table',\n  ROW: 'mdc-data-table__row',\n  ROW_CHECKBOX: 'mdc-data-table__row-checkbox',\n  ROW_SELECTED: 'mdc-data-table__row--selected',\n};\n\nexport const strings = {\n  ARIA_SELECTED: 'aria-selected',\n  DATA_ROW_ID_ATTR: 'data-row-id',\n  HEADER_ROW_CHECKBOX_SELECTOR: `.${cssClasses.HEADER_ROW_CHECKBOX}`,\n  ROW_CHECKBOX_SELECTOR: `.${cssClasses.ROW_CHECKBOX}`,\n  ROW_SELECTED_SELECTOR: `.${cssClasses.ROW_SELECTED}`,\n  ROW_SELECTOR: `.${cssClasses.ROW}`,\n};\n\nexport const events = {\n  ROW_SELECTION_CHANGED: 'MDCDataTable:rowSelectionChanged',\n  SELECTED_ALL: 'MDCDataTable:selectedAll',\n  UNSELECTED_ALL: 'MDCDataTable:unselectedAll',\n};\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {MDCDataTableAdapter} from './adapter';\nimport {cssClasses, strings} from './constants';\n\nexport class MDCDataTableFoundation extends MDCFoundation<MDCDataTableAdapter> {\n  static get defaultAdapter(): MDCDataTableAdapter {\n    return {\n      addClassAtRowIndex: () => undefined,\n      getRowCount: () => 0,\n      getRowElements: () => [],\n      getRowIdAtIndex: () => '',\n      getRowIndexByChildElement: () => 0,\n      getSelectedRowCount: () => 0,\n      isCheckboxAtRowIndexChecked: () => false,\n      isHeaderRowCheckboxChecked: () => false,\n      isRowsSelectable: () => false,\n      notifyRowSelectionChanged: () => undefined,\n      notifySelectedAll: () => undefined,\n      notifyUnselectedAll: () => undefined,\n      registerHeaderRowCheckbox: () => undefined,\n      registerRowCheckboxes: () => undefined,\n      removeClassAtRowIndex: () => undefined,\n      setAttributeAtRowIndex: () => undefined,\n      setHeaderRowCheckboxChecked: () => undefined,\n      setHeaderRowCheckboxIndeterminate: () => undefined,\n      setRowCheckboxCheckedAtIndex: () => undefined,\n    };\n  }\n\n  constructor(adapter?: Partial<MDCDataTableAdapter>) {\n    super({...MDCDataTableFoundation.defaultAdapter, ...adapter});\n  }\n\n  /**\n   * Re-initializes header row checkbox and row checkboxes when selectable rows are added or removed from table.\n   * Use this if registering checkbox is synchronous.\n   */\n  layout() {\n    if (this.adapter_.isRowsSelectable()) {\n      this.adapter_.registerHeaderRowCheckbox();\n      this.adapter_.registerRowCheckboxes();\n\n      this.setHeaderRowCheckboxState_();\n    }\n  }\n\n  /**\n   * Re-initializes header row checkbox and row checkboxes when selectable rows are added or removed from table.\n   * Use this if registering checkbox is asynchronous.\n   */\n  async layoutAsync(): Promise<void> {\n    if (this.adapter_.isRowsSelectable()) {\n      await this.adapter_.registerHeaderRowCheckbox();\n      await this.adapter_.registerRowCheckboxes();\n\n      this.setHeaderRowCheckboxState_();\n    }\n  }\n\n  /**\n   * @return Returns array of row elements.\n   */\n  getRows(): Element[] {\n    return this.adapter_.getRowElements();\n  }\n\n  /**\n   * Sets selected row ids. Overwrites previously selected rows.\n   * @param rowIds Array of row ids that needs to be selected.\n   */\n  setSelectedRowIds(rowIds: string[]) {\n    for (let rowIndex = 0; rowIndex < this.adapter_.getRowCount(); rowIndex++) {\n      const rowId = this.adapter_.getRowIdAtIndex(rowIndex);\n\n      let isSelected = false;\n      if (rowId && rowIds.indexOf(rowId) >= 0) {\n        isSelected = true;\n      }\n\n      this.adapter_.setRowCheckboxCheckedAtIndex(rowIndex, isSelected);\n      this.selectRowAtIndex_(rowIndex, isSelected);\n    }\n\n    this.setHeaderRowCheckboxState_();\n  }\n\n  /**\n   * @return Returns array of selected row ids.\n   */\n  getSelectedRowIds(): Array<string|null> {\n    const selectedRowIds: Array<string|null> = [];\n    for (let rowIndex = 0; rowIndex < this.adapter_.getRowCount(); rowIndex++) {\n      if (this.adapter_.isCheckboxAtRowIndexChecked(rowIndex)) {\n        selectedRowIds.push(this.adapter_.getRowIdAtIndex(rowIndex));\n      }\n    }\n\n    return selectedRowIds;\n  }\n\n  /**\n   * Handles header row checkbox change event.\n   */\n  handleHeaderRowCheckboxChange() {\n    const isHeaderChecked = this.adapter_.isHeaderRowCheckboxChecked();\n\n    for (let rowIndex = 0; rowIndex < this.adapter_.getRowCount(); rowIndex++) {\n      this.adapter_.setRowCheckboxCheckedAtIndex(rowIndex, isHeaderChecked);\n      this.selectRowAtIndex_(rowIndex, isHeaderChecked);\n    }\n\n    if (isHeaderChecked) {\n      this.adapter_.notifySelectedAll();\n    } else {\n      this.adapter_.notifyUnselectedAll();\n    }\n  }\n\n  /**\n   * Handles change event originated from row checkboxes.\n   */\n  handleRowCheckboxChange(event: Event) {\n    const rowIndex = this.adapter_.getRowIndexByChildElement(event.target as HTMLInputElement);\n\n    if (rowIndex === -1) {\n      return;\n    }\n\n    const selected = this.adapter_.isCheckboxAtRowIndexChecked(rowIndex);\n\n    this.selectRowAtIndex_(rowIndex, selected);\n    this.setHeaderRowCheckboxState_();\n\n    const rowId = this.adapter_.getRowIdAtIndex(rowIndex);\n    this.adapter_.notifyRowSelectionChanged({rowId, rowIndex, selected});\n  }\n\n  /**\n   * Updates header row checkbox state based on number of rows selected.\n   */\n  private setHeaderRowCheckboxState_() {\n    if (this.adapter_.getSelectedRowCount() === this.adapter_.getRowCount()) {\n      this.adapter_.setHeaderRowCheckboxChecked(true);\n      this.adapter_.setHeaderRowCheckboxIndeterminate(false);\n    } else if (this.adapter_.getSelectedRowCount() === 0) {\n      this.adapter_.setHeaderRowCheckboxIndeterminate(false);\n      this.adapter_.setHeaderRowCheckboxChecked(false);\n    } else {\n      this.adapter_.setHeaderRowCheckboxIndeterminate(true);\n      this.adapter_.setHeaderRowCheckboxChecked(false);\n    }\n  }\n\n  /**\n   * Sets the attributes of row element based on selection state.\n   */\n  private selectRowAtIndex_(rowIndex: number, selected: boolean) {\n    if (selected) {\n      this.adapter_.addClassAtRowIndex(rowIndex, cssClasses.ROW_SELECTED);\n      this.adapter_.setAttributeAtRowIndex(rowIndex, strings.ARIA_SELECTED, 'true');\n    } else {\n      this.adapter_.removeClassAtRowIndex(rowIndex, cssClasses.ROW_SELECTED);\n      this.adapter_.setAttributeAtRowIndex(rowIndex, strings.ARIA_SELECTED, 'false');\n    }\n  }\n}\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport * from './adapter';\nexport * from './component';\nexport * from './foundation';\nexport * from './constants';\nexport * from './types';\n","/**\n * @license\n * Copyright 2017 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {SpecificEventListener} from '@material/base/types';\nimport {FocusTrap} from '@material/dom/focus-trap';\nimport {closest, matches} from '@material/dom/ponyfill';\nimport {MDCRipple} from '@material/ripple/component';\nimport {MDCDialogAdapter} from './adapter';\nimport {MDCDialogFoundation} from './foundation';\nimport {MDCDialogCloseEventDetail} from './types';\nimport * as util from './util';\nimport {MDCDialogFocusTrapFactory} from './util';\n\nconst {strings} = MDCDialogFoundation;\n\nexport class MDCDialog extends MDCComponent<MDCDialogFoundation> {\n  get isOpen() {\n    return this.foundation_.isOpen();\n  }\n\n  get escapeKeyAction() {\n    return this.foundation_.getEscapeKeyAction();\n  }\n\n  set escapeKeyAction(action) {\n    this.foundation_.setEscapeKeyAction(action);\n  }\n\n  get scrimClickAction() {\n    return this.foundation_.getScrimClickAction();\n  }\n\n  set scrimClickAction(action) {\n    this.foundation_.setScrimClickAction(action);\n  }\n\n  get autoStackButtons() {\n    return this.foundation_.getAutoStackButtons();\n  }\n\n  set autoStackButtons(autoStack) {\n    this.foundation_.setAutoStackButtons(autoStack);\n  }\n\n  static attachTo(root: Element) {\n    return new MDCDialog(root);\n  }\n\n  private buttonRipples_!: MDCRipple[]; // assigned in initialize()\n  private buttons_!: HTMLElement[]; // assigned in initialize()\n  private container_!: HTMLElement; // assigned in initialize()\n  private content_!: HTMLElement | null; // assigned in initialize()\n  private defaultButton_!: HTMLElement | null; // assigned in initialize()\n\n  private focusTrap_!: FocusTrap; // assigned in initialSyncWithDOM()\n  private focusTrapFactory_!: MDCDialogFocusTrapFactory; // assigned in initialize()\n\n  private handleClick_!: SpecificEventListener<'click'>; // assigned in initialSyncWithDOM()\n  private handleKeydown_!: SpecificEventListener<'keydown'>; // assigned in initialSyncWithDOM()\n  private handleDocumentKeydown_!: SpecificEventListener<'keydown'>; // assigned in initialSyncWithDOM()\n  private handleLayout_!: EventListener; // assigned in initialSyncWithDOM()\n  private handleOpening_!: EventListener; // assigned in initialSyncWithDOM()\n  private handleClosing_!: () => void; // assigned in initialSyncWithDOM()\n\n  initialize(\n      focusTrapFactory: MDCDialogFocusTrapFactory = (el, focusOptions) => new FocusTrap(el, focusOptions),\n  ) {\n    const container = this.root_.querySelector<HTMLElement>(strings.CONTAINER_SELECTOR);\n    if (!container) {\n      throw new Error(`Dialog component requires a ${strings.CONTAINER_SELECTOR} container element`);\n    }\n    this.container_ = container;\n    this.content_ = this.root_.querySelector<HTMLElement>(strings.CONTENT_SELECTOR);\n    this.buttons_ = [].slice.call(this.root_.querySelectorAll<HTMLElement>(strings.BUTTON_SELECTOR));\n    this.defaultButton_ = this.root_.querySelector<HTMLElement>(`[${strings.BUTTON_DEFAULT_ATTRIBUTE}]`);\n    this.focusTrapFactory_ = focusTrapFactory;\n    this.buttonRipples_ = [];\n\n    for (const buttonEl of this.buttons_) {\n      this.buttonRipples_.push(new MDCRipple(buttonEl));\n    }\n  }\n\n  initialSyncWithDOM() {\n    this.focusTrap_ = util.createFocusTrapInstance(\n        this.container_, this.focusTrapFactory_, this.getInitialFocusEl_() || undefined);\n\n    this.handleClick_ = this.foundation_.handleClick.bind(this.foundation_);\n    this.handleKeydown_ = this.foundation_.handleKeydown.bind(this.foundation_);\n    this.handleDocumentKeydown_ = this.foundation_.handleDocumentKeydown.bind(this.foundation_);\n    this.handleLayout_ = this.layout.bind(this);\n\n    const LAYOUT_EVENTS = ['resize', 'orientationchange'];\n    this.handleOpening_ = () => {\n      LAYOUT_EVENTS.forEach((evtType) => window.addEventListener(evtType, this.handleLayout_));\n      document.addEventListener('keydown', this.handleDocumentKeydown_);\n    };\n    this.handleClosing_ = () => {\n      LAYOUT_EVENTS.forEach((evtType) => window.removeEventListener(evtType, this.handleLayout_));\n      document.removeEventListener('keydown', this.handleDocumentKeydown_);\n    };\n\n    this.listen('click', this.handleClick_);\n    this.listen('keydown', this.handleKeydown_);\n    this.listen(strings.OPENING_EVENT, this.handleOpening_);\n    this.listen(strings.CLOSING_EVENT, this.handleClosing_);\n  }\n\n  destroy() {\n    this.unlisten('click', this.handleClick_);\n    this.unlisten('keydown', this.handleKeydown_);\n    this.unlisten(strings.OPENING_EVENT, this.handleOpening_);\n    this.unlisten(strings.CLOSING_EVENT, this.handleClosing_);\n    this.handleClosing_();\n\n    this.buttonRipples_.forEach((ripple) => ripple.destroy());\n    super.destroy();\n  }\n\n  layout() {\n    this.foundation_.layout();\n  }\n\n  open() {\n    this.foundation_.open();\n  }\n\n  close(action = '') {\n    this.foundation_.close(action);\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    const adapter: MDCDialogAdapter = {\n      addBodyClass: (className) => document.body.classList.add(className),\n      addClass: (className) => this.root_.classList.add(className),\n      areButtonsStacked: () => util.areTopsMisaligned(this.buttons_),\n      clickDefaultButton: () => this.defaultButton_ && this.defaultButton_.click(),\n      eventTargetMatches: (target, selector) => target ? matches(target as Element, selector) : false,\n      getActionFromEvent: (evt: Event) => {\n        if (!evt.target) {\n          return '';\n        }\n        const element = closest(evt.target as Element, `[${strings.ACTION_ATTRIBUTE}]`);\n        return element && element.getAttribute(strings.ACTION_ATTRIBUTE);\n      },\n      getInitialFocusEl: () => this.getInitialFocusEl_(),\n      hasClass: (className) => this.root_.classList.contains(className),\n      isContentScrollable: () => util.isScrollable(this.content_),\n      notifyClosed: (action) => this.emit<MDCDialogCloseEventDetail>(strings.CLOSED_EVENT, action ? {action} : {}),\n      notifyClosing: (action) => this.emit<MDCDialogCloseEventDetail>(strings.CLOSING_EVENT, action ? {action} : {}),\n      notifyOpened: () => this.emit(strings.OPENED_EVENT, {}),\n      notifyOpening: () => this.emit(strings.OPENING_EVENT, {}),\n      releaseFocus: () => this.focusTrap_.releaseFocus(),\n      removeBodyClass: (className) => document.body.classList.remove(className),\n      removeClass: (className) => this.root_.classList.remove(className),\n      reverseButtons: () => {\n        this.buttons_.reverse();\n        this.buttons_.forEach((button) => {\n          button.parentElement!.appendChild(button);\n        });\n      },\n      trapFocus: () => this.focusTrap_.trapFocus(),\n    };\n    return new MDCDialogFoundation(adapter);\n  }\n\n  private getInitialFocusEl_(): HTMLElement|null {\n    return document.querySelector(`[${strings.INITIAL_FOCUS_ATTRIBUTE}]`);\n  }\n}\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport const cssClasses = {\n  CLOSING: 'mdc-dialog--closing',\n  OPEN: 'mdc-dialog--open',\n  OPENING: 'mdc-dialog--opening',\n  SCROLLABLE: 'mdc-dialog--scrollable',\n  SCROLL_LOCK: 'mdc-dialog-scroll-lock',\n  STACKED: 'mdc-dialog--stacked',\n};\n\nexport const strings = {\n  ACTION_ATTRIBUTE: 'data-mdc-dialog-action',\n  BUTTON_DEFAULT_ATTRIBUTE: 'data-mdc-dialog-button-default',\n  BUTTON_SELECTOR: '.mdc-dialog__button',\n  CLOSED_EVENT: 'MDCDialog:closed',\n  CLOSE_ACTION: 'close',\n  CLOSING_EVENT: 'MDCDialog:closing',\n  CONTAINER_SELECTOR: '.mdc-dialog__container',\n  CONTENT_SELECTOR: '.mdc-dialog__content',\n  DESTROY_ACTION: 'destroy',\n  INITIAL_FOCUS_ATTRIBUTE: 'data-mdc-dialog-initial-focus',\n  OPENED_EVENT: 'MDCDialog:opened',\n  OPENING_EVENT: 'MDCDialog:opening',\n  SCRIM_SELECTOR: '.mdc-dialog__scrim',\n  SUPPRESS_DEFAULT_PRESS_SELECTOR: [\n    'textarea',\n    '.mdc-menu .mdc-list-item',\n  ].join(', '),\n  SURFACE_SELECTOR: '.mdc-dialog__surface',\n};\n\nexport const numbers = {\n  DIALOG_ANIMATION_CLOSE_TIME_MS: 75,\n  DIALOG_ANIMATION_OPEN_TIME_MS: 150,\n};\n","/**\n * @license\n * Copyright 2017 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {MDCDialogAdapter} from './adapter';\nimport {cssClasses, numbers, strings} from './constants';\n\nexport class MDCDialogFoundation extends MDCFoundation<MDCDialogAdapter> {\n  static get cssClasses() {\n    return cssClasses;\n  }\n\n  static get strings() {\n    return strings;\n  }\n\n  static get numbers() {\n    return numbers;\n  }\n\n  static get defaultAdapter(): MDCDialogAdapter {\n    return {\n      addBodyClass: () => undefined,\n      addClass: () => undefined,\n      areButtonsStacked: () => false,\n      clickDefaultButton: () => undefined,\n      eventTargetMatches: () => false,\n      getActionFromEvent: () => '',\n      getInitialFocusEl: () => null,\n      hasClass: () => false,\n      isContentScrollable: () => false,\n      notifyClosed: () => undefined,\n      notifyClosing: () => undefined,\n      notifyOpened: () => undefined,\n      notifyOpening: () => undefined,\n      releaseFocus: () => undefined,\n      removeBodyClass: () => undefined,\n      removeClass: () => undefined,\n      reverseButtons: () => undefined,\n      trapFocus: () => undefined,\n    };\n  }\n\n  private isOpen_ = false;\n  private animationFrame_ = 0;\n  private animationTimer_ = 0;\n  private layoutFrame_ = 0;\n  private escapeKeyAction_ = strings.CLOSE_ACTION;\n  private scrimClickAction_ = strings.CLOSE_ACTION;\n  private autoStackButtons_ = true;\n  private areButtonsStacked_ = false;\n\n  constructor(adapter?: Partial<MDCDialogAdapter>) {\n    super({...MDCDialogFoundation.defaultAdapter, ...adapter});\n  }\n\n  init() {\n    if (this.adapter_.hasClass(cssClasses.STACKED)) {\n      this.setAutoStackButtons(false);\n    }\n  }\n\n  destroy() {\n    if (this.isOpen_) {\n      this.close(strings.DESTROY_ACTION);\n    }\n\n    if (this.animationTimer_) {\n      clearTimeout(this.animationTimer_);\n      this.handleAnimationTimerEnd_();\n    }\n\n    if (this.layoutFrame_) {\n      cancelAnimationFrame(this.layoutFrame_);\n      this.layoutFrame_ = 0;\n    }\n  }\n\n  open() {\n    this.isOpen_ = true;\n    this.adapter_.notifyOpening();\n    this.adapter_.addClass(cssClasses.OPENING);\n\n    // Wait a frame once display is no longer \"none\", to establish basis for animation\n    this.runNextAnimationFrame_(() => {\n      this.adapter_.addClass(cssClasses.OPEN);\n      this.adapter_.addBodyClass(cssClasses.SCROLL_LOCK);\n\n      this.layout();\n\n      this.animationTimer_ = setTimeout(() => {\n        this.handleAnimationTimerEnd_();\n        this.adapter_.trapFocus(this.adapter_.getInitialFocusEl());\n        this.adapter_.notifyOpened();\n      }, numbers.DIALOG_ANIMATION_OPEN_TIME_MS);\n    });\n  }\n\n  close(action = '') {\n    if (!this.isOpen_) {\n      // Avoid redundant close calls (and events), e.g. from keydown on elements that inherently emit click\n      return;\n    }\n\n    this.isOpen_ = false;\n    this.adapter_.notifyClosing(action);\n    this.adapter_.addClass(cssClasses.CLOSING);\n    this.adapter_.removeClass(cssClasses.OPEN);\n    this.adapter_.removeBodyClass(cssClasses.SCROLL_LOCK);\n\n    cancelAnimationFrame(this.animationFrame_);\n    this.animationFrame_ = 0;\n\n    clearTimeout(this.animationTimer_);\n    this.animationTimer_ = setTimeout(() => {\n      this.adapter_.releaseFocus();\n      this.handleAnimationTimerEnd_();\n      this.adapter_.notifyClosed(action);\n    }, numbers.DIALOG_ANIMATION_CLOSE_TIME_MS);\n  }\n\n  isOpen() {\n    return this.isOpen_;\n  }\n\n  getEscapeKeyAction(): string {\n    return this.escapeKeyAction_;\n  }\n\n  setEscapeKeyAction(action: string) {\n    this.escapeKeyAction_ = action;\n  }\n\n  getScrimClickAction(): string {\n    return this.scrimClickAction_;\n  }\n\n  setScrimClickAction(action: string) {\n    this.scrimClickAction_ = action;\n  }\n\n  getAutoStackButtons(): boolean {\n    return this.autoStackButtons_;\n  }\n\n  setAutoStackButtons(autoStack: boolean) {\n    this.autoStackButtons_ = autoStack;\n  }\n\n  layout() {\n    if (this.layoutFrame_) {\n      cancelAnimationFrame(this.layoutFrame_);\n    }\n    this.layoutFrame_ = requestAnimationFrame(() => {\n      this.layoutInternal_();\n      this.layoutFrame_ = 0;\n    });\n  }\n\n  /** Handles click on the dialog root element. */\n  handleClick(evt: MouseEvent) {\n    const isScrim = this.adapter_.eventTargetMatches(evt.target, strings.SCRIM_SELECTOR);\n    // Check for scrim click first since it doesn't require querying ancestors.\n    if (isScrim && this.scrimClickAction_ !== '') {\n      this.close(this.scrimClickAction_);\n    } else {\n      const action = this.adapter_.getActionFromEvent(evt);\n      if (action) {\n        this.close(action);\n      }\n    }\n  }\n\n  /** Handles keydown on the dialog root element. */\n  handleKeydown(evt: KeyboardEvent) {\n    const isEnter = evt.key === 'Enter' || evt.keyCode === 13;\n    if (!isEnter) {\n      return;\n    }\n    const action = this.adapter_.getActionFromEvent(evt);\n    if (action) {\n      // Action button callback is handled in `handleClick`,\n      // since space/enter keydowns on buttons trigger click events.\n      return;\n    }\n\n    const isDefault = !this.adapter_.eventTargetMatches(\n        evt.target, strings.SUPPRESS_DEFAULT_PRESS_SELECTOR);\n    if (isEnter && isDefault) {\n      this.adapter_.clickDefaultButton();\n    }\n  }\n\n  /** Handles keydown on the document. */\n  handleDocumentKeydown(evt: KeyboardEvent) {\n    const isEscape = evt.key === 'Escape' || evt.keyCode === 27;\n    if (isEscape && this.escapeKeyAction_ !== '') {\n      this.close(this.escapeKeyAction_);\n    }\n  }\n\n  private layoutInternal_() {\n    if (this.autoStackButtons_) {\n      this.detectStackedButtons_();\n    }\n    this.detectScrollableContent_();\n  }\n\n  private handleAnimationTimerEnd_() {\n    this.animationTimer_ = 0;\n    this.adapter_.removeClass(cssClasses.OPENING);\n    this.adapter_.removeClass(cssClasses.CLOSING);\n  }\n\n  /**\n   * Runs the given logic on the next animation frame, using setTimeout to factor in Firefox reflow behavior.\n   */\n  private runNextAnimationFrame_(callback: () => void) {\n    cancelAnimationFrame(this.animationFrame_);\n    this.animationFrame_ = requestAnimationFrame(() => {\n      this.animationFrame_ = 0;\n      clearTimeout(this.animationTimer_);\n      this.animationTimer_ = setTimeout(callback, 0);\n    });\n  }\n\n  private detectStackedButtons_() {\n    // Remove the class first to let us measure the buttons' natural positions.\n    this.adapter_.removeClass(cssClasses.STACKED);\n\n    const areButtonsStacked = this.adapter_.areButtonsStacked();\n\n    if (areButtonsStacked) {\n      this.adapter_.addClass(cssClasses.STACKED);\n    }\n\n    if (areButtonsStacked !== this.areButtonsStacked_) {\n      this.adapter_.reverseButtons();\n      this.areButtonsStacked_ = areButtonsStacked;\n    }\n  }\n\n  private detectScrollableContent_() {\n    // Remove the class first to let us measure the natural height of the content.\n    this.adapter_.removeClass(cssClasses.SCROLLABLE);\n    if (this.adapter_.isContentScrollable()) {\n      this.adapter_.addClass(cssClasses.SCROLLABLE);\n    }\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCDialogFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport * as util from './util';\n\nexport {util};\nexport * from './adapter';\nexport * from './component';\nexport * from './constants';\nexport * from './foundation';\nexport * from './types';\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {FocusOptions, FocusTrap} from '@material/dom/focus-trap';\n\nexport type MDCDialogFocusTrapFactory = (\n    element: HTMLElement,\n    options: FocusOptions,\n) => FocusTrap;\n\nexport function createFocusTrapInstance(\n    surfaceEl: HTMLElement,\n    focusTrapFactory: MDCDialogFocusTrapFactory,\n    initialFocusEl?: HTMLElement,\n): FocusTrap {\n  return focusTrapFactory(surfaceEl, {initialFocusEl});\n}\n\nexport function isScrollable(el: HTMLElement | null): boolean {\n  return el ? el.scrollHeight > el.offsetHeight : false;\n}\n\nexport function areTopsMisaligned(els: HTMLElement[]): boolean {\n  const tops = new Set();\n  [].forEach.call(els, (el: HTMLElement) => tops.add(el.offsetTop));\n  return tops.size > 1;\n}\n","/**\n * @license\n * Copyright 2020 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\n/**\n * Priorities for the announce function\n */\nexport enum AnnouncerPriority {\n  POLITE = 'polite',\n  ASSERTIVE = 'assertive',\n}\n\n/**\n * Announces the given message with optional priority, defaulting to \"polite\"\n */\nexport function announce(message: string, priority?: AnnouncerPriority) {\n  Announcer.getInstance().say(message, priority);\n}\n\nclass Announcer {\n  private static instance: Announcer;\n  private readonly liveRegions: Map<AnnouncerPriority, Element>;\n\n  static getInstance(): Announcer {\n    if (!Announcer.instance) {\n      Announcer.instance = new Announcer();\n    }\n\n    return Announcer.instance;\n  }\n\n  // Constructor made private to ensure only the singleton is used\n  private constructor() {\n    this.liveRegions = new Map();\n  }\n\n  say(message: string, priority: AnnouncerPriority = AnnouncerPriority.POLITE) {\n    const liveRegion = this.getLiveRegion(priority);\n    // Reset the region to pick up the message, even if the message is the\n    // exact same as before.\n    liveRegion.textContent = '';\n    // Timeout is necessary for screen readers like NVDA and VoiceOver.\n    setTimeout(() => {\n      liveRegion.textContent = message;\n    }, 1);\n  }\n\n  private getLiveRegion(priority: AnnouncerPriority): Element {\n    const existingLiveRegion = this.liveRegions.get(priority);\n    if (existingLiveRegion &&\n        document.body.contains(existingLiveRegion as Node)) {\n      return existingLiveRegion;\n    }\n\n    const liveRegion = this.createLiveRegion(priority);\n    this.liveRegions.set(priority, liveRegion);\n    return liveRegion;\n  }\n\n  private createLiveRegion(priority: AnnouncerPriority): Element {\n    const el = document.createElement('div');\n    el.style.position = 'absolute';\n    el.style.top = '-9999px';\n    el.style.left = '-9999px';\n    el.style.height = '1px';\n    el.style.overflow = 'hidden';\n    el.setAttribute('aria-atomic', 'true');\n    el.setAttribute('aria-live', priority);\n    document.body.appendChild(el);\n    return el;\n  }\n}\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\n/**\n * Determine whether the current browser supports passive event listeners, and\n * if so, use them.\n */\nexport function applyPassive(globalObj: Window = window):\n    boolean | EventListenerOptions {\n  return supportsPassiveOption(globalObj) ?\n      {passive: true} as AddEventListenerOptions :\n      false;\n}\n\nfunction supportsPassiveOption(globalObj: Window = window): boolean {\n  // See\n  // https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener\n  let passiveSupported = false;\n\n  try {\n    const options = {\n      // This function will be called when the browser\n      // attempts to access the passive property.\n      get passive() {\n        passiveSupported = true;\n        return false;\n      }\n    };\n\n    const handler = () => {};\n    globalObj.document.addEventListener('test', handler, options);\n    globalObj.document.removeEventListener(\n        'test', handler, options as EventListenerOptions);\n  } catch (err) {\n    passiveSupported = false;\n  }\n\n  return passiveSupported;\n}\n","/**\n * @license\n * Copyright 2020 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nconst FOCUS_SENTINEL_CLASS = 'mdc-dom-focus-sentinel';\n\n/**\n * Utility to trap focus in a given root element, e.g. for modal components such\n * as dialogs. The root should have at least one focusable child element,\n * for setting initial focus when trapping focus.\n * Also tracks the previously focused element, and restores focus to that\n * element when releasing focus.\n */\nexport class FocusTrap {\n  // Previously focused element before trapping focus.\n  private elFocusedBeforeTrapFocus: HTMLElement|null = null;\n\n  constructor(\n      private readonly root: HTMLElement,\n      private readonly options: FocusOptions = {}) {}\n\n  /**\n   * Traps focus in `root`. Also focuses on either `initialFocusEl` if set;\n   * otherwises sets initial focus to the first focusable child element.\n   */\n  trapFocus() {\n    const focusableEls = this.getFocusableElements(this.root);\n    if (focusableEls.length === 0) {\n      throw new Error(\n          'FocusTrap: Element must have at least one focusable child.');\n    }\n\n    this.elFocusedBeforeTrapFocus =\n        document.activeElement instanceof HTMLElement ? document.activeElement :\n                                                        null;\n    this.wrapTabFocus(this.root, focusableEls);\n\n    if (!this.options.skipInitialFocus) {\n      this.focusInitialElement(focusableEls, this.options.initialFocusEl);\n    }\n  }\n\n  /**\n   * Releases focus from `root`. Also restores focus to the previously focused\n   * element.\n   */\n  releaseFocus() {\n    [].slice.call(this.root.querySelectorAll(`.${FOCUS_SENTINEL_CLASS}`))\n        .forEach((sentinelEl: HTMLElement) => {\n          sentinelEl.parentElement!.removeChild(sentinelEl);\n        });\n\n    if (this.elFocusedBeforeTrapFocus) {\n      this.elFocusedBeforeTrapFocus.focus();\n    }\n  }\n\n  /**\n   * Wraps tab focus within `el` by adding two hidden sentinel divs which are\n   * used to mark the beginning and the end of the tabbable region. When\n   * focused, these sentinel elements redirect focus to the first/last\n   * children elements of the tabbable region, ensuring that focus is trapped\n   * within that region.\n   */\n  private wrapTabFocus(el: HTMLElement, focusableEls: HTMLElement[]) {\n    const sentinelStart = this.createSentinel();\n    const sentinelEnd = this.createSentinel();\n\n    sentinelStart.addEventListener('focus', () => {\n      if (focusableEls.length > 0) {\n        focusableEls[focusableEls.length - 1].focus();\n      }\n    });\n    sentinelEnd.addEventListener('focus', () => {\n      if (focusableEls.length > 0) {\n        focusableEls[0].focus();\n      }\n    });\n\n    el.insertBefore(sentinelStart, el.children[0]);\n    el.appendChild(sentinelEnd);\n  }\n\n  /**\n   * Focuses on `initialFocusEl` if defined and a child of the root element.\n   * Otherwise, focuses on the first focusable child element of the root.\n   */\n  private focusInitialElement(\n      focusableEls: HTMLElement[], initialFocusEl?: HTMLElement) {\n    let focusIndex = 0;\n    if (initialFocusEl) {\n      focusIndex = Math.max(focusableEls.indexOf(initialFocusEl), 0);\n    }\n    focusableEls[focusIndex].focus();\n  }\n\n  private getFocusableElements(root: HTMLElement): HTMLElement[] {\n    const focusableEls =\n        [].slice.call(root.querySelectorAll(\n            '[autofocus], [tabindex], a, input, textarea, select, button')) as\n        HTMLElement[];\n    return focusableEls.filter((el) => {\n      const isDisabledOrHidden = el.getAttribute('aria-disabled') === 'true' ||\n          el.getAttribute('disabled') != null ||\n          el.getAttribute('hidden') != null ||\n          el.getAttribute('aria-hidden') === 'true';\n      const isTabbableAndVisible = el.tabIndex >= 0 &&\n          el.getBoundingClientRect().width > 0 &&\n          !el.classList.contains(FOCUS_SENTINEL_CLASS) && !isDisabledOrHidden;\n\n      let isProgrammaticallyHidden = false;\n      if (isTabbableAndVisible) {\n        const style = getComputedStyle(el);\n        isProgrammaticallyHidden =\n            style.display === 'none' || style.visibility === 'hidden';\n      }\n      return isTabbableAndVisible && !isProgrammaticallyHidden;\n    });\n  }\n\n  private createSentinel() {\n    const sentinel = document.createElement('div');\n    sentinel.setAttribute('tabindex', '0');\n    // Don't announce in screen readers.\n    sentinel.setAttribute('aria-hidden', 'true');\n    sentinel.classList.add(FOCUS_SENTINEL_CLASS);\n    return sentinel;\n  }\n}\n\n/** Customization options. */\nexport interface FocusOptions {\n  // The element to focus initially when trapping focus.\n  //  Must be a child of the root element.\n  initialFocusEl?: HTMLElement;\n\n  // Whether to skip initially focusing on any element when trapping focus.\n  // By default, focus is set on the first focusable child element of the root.\n  // This is useful if the caller wants to handle setting initial focus.\n  skipInitialFocus?: boolean;\n}\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport * as events from './events';\nimport * as focusTrap from './focus-trap';\nimport * as ponyfill from './ponyfill';\n\nexport {events, focusTrap, ponyfill};\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\n/**\n * @fileoverview A \"ponyfill\" is a polyfill that doesn't modify the global prototype chain.\n * This makes ponyfills safer than traditional polyfills, especially for libraries like MDC.\n */\n\nexport function closest(element: Element, selector: string): Element | null {\n  if (element.closest) {\n    return element.closest(selector);\n  }\n\n  let el: Element | null = element;\n  while (el) {\n    if (matches(el, selector)) {\n      return el;\n    }\n    el = el.parentElement;\n  }\n  return null;\n}\n\nexport function matches(element: Element, selector: string): boolean {\n  const nativeMatches = element.matches\n      || element.webkitMatchesSelector\n      || element.msMatchesSelector;\n  return nativeMatches.call(element, selector);\n}\n\n/**\n * Used to compute the estimated scroll width of elements. When an element is\n * hidden due to display: none; being applied to a parent element, the width is\n * returned as 0. However, the element will have a true width once no longer\n * inside a display: none context. This method computes an estimated width when\n * the element is hidden or returns the true width when the element is visble.\n * @param {Element} element the element whose width to estimate\n */\nexport function estimateScrollWidth(element: Element): number {\n  // Check the offsetParent. If the element inherits display: none from any\n  // parent, the offsetParent property will be null (see\n  // https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/offsetParent).\n  // This check ensures we only clone the node when necessary.\n  const htmlEl = element as HTMLElement;\n  if (htmlEl.offsetParent !== null) {\n    return htmlEl.scrollWidth;\n  }\n\n  const clone = htmlEl.cloneNode(true) as HTMLElement;\n  clone.style.setProperty('position', 'absolute');\n  clone.style.setProperty('transform', 'translate(-9999px, -9999px)');\n  document.documentElement.appendChild(clone);\n  const scrollWidth = clone.scrollWidth;\n  document.documentElement.removeChild(clone);\n  return scrollWidth;\n}\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {SpecificEventListener} from '@material/base/types';\nimport {FocusTrap} from '@material/dom/focus-trap';\nimport {MDCList, MDCListFactory} from '@material/list/component';\nimport {MDCListFoundation} from '@material/list/foundation';\nimport {MDCDrawerAdapter} from './adapter';\nimport {MDCDismissibleDrawerFoundation} from './dismissible/foundation';\nimport {MDCModalDrawerFoundation} from './modal/foundation';\nimport * as util from './util';\nimport {MDCDrawerFocusTrapFactory} from './util';\n\nconst {cssClasses, strings} = MDCDismissibleDrawerFoundation;\n\n/**\n * @events `MDCDrawer:closed {}` Emits when the navigation drawer has closed.\n * @events `MDCDrawer:opened {}` Emits when the navigation drawer has opened.\n */\nexport class MDCDrawer extends MDCComponent<MDCDismissibleDrawerFoundation> {\n  static attachTo(root: Element): MDCDrawer {\n    return new MDCDrawer(root);\n  }\n\n  /**\n   * @return boolean Proxies to the foundation's `open`/`close` methods.\n   * Also returns true if drawer is in the open position.\n   */\n  get open(): boolean {\n    return this.foundation_.isOpen();\n  }\n\n  /**\n   * Toggles the drawer open and closed.\n   */\n  set open(isOpen: boolean) {\n    if (isOpen) {\n      this.foundation_.open();\n    } else {\n      this.foundation_.close();\n    }\n  }\n\n  private previousFocus_?: Element | null;\n  private scrim_!: HTMLElement | null; // assigned in initialSyncWithDOM()\n  private list_?: MDCList; // assigned in initialize()\n\n  private focusTrap_?: FocusTrap; // assigned in initialSyncWithDOM()\n  private focusTrapFactory_!: MDCDrawerFocusTrapFactory; // assigned in initialize()\n\n  private handleScrimClick_?: SpecificEventListener<'click'>; // initialized in initialSyncWithDOM()\n  private handleKeydown_!: SpecificEventListener<'keydown'>; // initialized in initialSyncWithDOM()\n  private handleTransitionEnd_!: SpecificEventListener<'transitionend'>; // initialized in initialSyncWithDOM()\n\n  get list(): MDCList | undefined {\n    return this.list_;\n  }\n\n  initialize(\n      focusTrapFactory: MDCDrawerFocusTrapFactory = (el) => new FocusTrap(el),\n      listFactory: MDCListFactory = (el) => new MDCList(el),\n  ) {\n    const listEl = this.root_.querySelector(`.${MDCListFoundation.cssClasses.ROOT}`);\n    if (listEl) {\n      this.list_ = listFactory(listEl);\n      this.list_.wrapFocus = true;\n    }\n    this.focusTrapFactory_ = focusTrapFactory;\n  }\n\n  initialSyncWithDOM() {\n    const {MODAL} = cssClasses;\n    const {SCRIM_SELECTOR} = strings;\n\n    this.scrim_ = (this.root_.parentNode as Element).querySelector<HTMLElement>(SCRIM_SELECTOR);\n\n    if (this.scrim_ && this.root_.classList.contains(MODAL)) {\n      this.handleScrimClick_ = () => (this.foundation_ as MDCModalDrawerFoundation).handleScrimClick();\n      this.scrim_.addEventListener('click', this.handleScrimClick_);\n      this.focusTrap_ = util.createFocusTrapInstance(this.root_ as HTMLElement, this.focusTrapFactory_);\n    }\n\n    this.handleKeydown_ = (evt) => this.foundation_.handleKeydown(evt);\n    this.handleTransitionEnd_ = (evt) => this.foundation_.handleTransitionEnd(evt);\n\n    this.listen('keydown', this.handleKeydown_);\n    this.listen('transitionend', this.handleTransitionEnd_);\n  }\n\n  destroy() {\n    this.unlisten('keydown', this.handleKeydown_);\n    this.unlisten('transitionend', this.handleTransitionEnd_);\n\n    if (this.list_) {\n      this.list_.destroy();\n    }\n\n    const {MODAL} = cssClasses;\n    if (this.scrim_ && this.handleScrimClick_ && this.root_.classList.contains(MODAL)) {\n      this.scrim_.removeEventListener('click', this.handleScrimClick_);\n      // Ensure drawer is closed to hide scrim and release focus\n      this.open = false;\n    }\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    const adapter: MDCDrawerAdapter = {\n      addClass: (className) => this.root_.classList.add(className),\n      removeClass: (className) => this.root_.classList.remove(className),\n      hasClass: (className) => this.root_.classList.contains(className),\n      elementHasClass: (element, className) => element.classList.contains(className),\n      saveFocus: () => this.previousFocus_ = document.activeElement,\n      restoreFocus: () => {\n        const previousFocus = this.previousFocus_ as HTMLOrSVGElement | null;\n        if (previousFocus && previousFocus.focus && this.root_.contains(document.activeElement)) {\n          previousFocus.focus();\n        }\n      },\n      focusActiveNavigationItem: () => {\n        const activeNavItemEl =\n            this.root_.querySelector<HTMLElement>(`.${MDCListFoundation.cssClasses.LIST_ITEM_ACTIVATED_CLASS}`);\n        if (activeNavItemEl) {\n          activeNavItemEl.focus();\n        }\n      },\n      notifyClose: () => this.emit(strings.CLOSE_EVENT, {}, true /* shouldBubble */),\n      notifyOpen: () => this.emit(strings.OPEN_EVENT, {}, true /* shouldBubble */),\n      trapFocus: () => this.focusTrap_!.trapFocus(),\n      releaseFocus: () => this.focusTrap_!.releaseFocus(),\n    };\n    // tslint:enable:object-literal-sort-keys\n\n    const {DISMISSIBLE, MODAL} = cssClasses;\n    if (this.root_.classList.contains(DISMISSIBLE)) {\n      return new MDCDismissibleDrawerFoundation(adapter);\n    } else if (this.root_.classList.contains(MODAL)) {\n      return new MDCModalDrawerFoundation(adapter);\n    } else {\n      throw new Error(\n          `MDCDrawer: Failed to instantiate component. Supported variants are ${DISMISSIBLE} and ${MODAL}.`);\n    }\n  }\n}\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nconst cssClasses = {\n  ANIMATE: 'mdc-drawer--animate',\n  CLOSING: 'mdc-drawer--closing',\n  DISMISSIBLE: 'mdc-drawer--dismissible',\n  MODAL: 'mdc-drawer--modal',\n  OPEN: 'mdc-drawer--open',\n  OPENING: 'mdc-drawer--opening',\n  ROOT: 'mdc-drawer',\n};\n\nconst strings = {\n  APP_CONTENT_SELECTOR: '.mdc-drawer-app-content',\n  CLOSE_EVENT: 'MDCDrawer:closed',\n  OPEN_EVENT: 'MDCDrawer:opened',\n  SCRIM_SELECTOR: '.mdc-drawer-scrim',\n};\n\nexport {cssClasses, strings};\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {MDCDrawerAdapter} from '../adapter';\nimport {cssClasses, strings} from '../constants';\n\nexport class MDCDismissibleDrawerFoundation extends MDCFoundation<MDCDrawerAdapter> {\n  static get strings() {\n    return strings;\n  }\n\n  static get cssClasses() {\n    return cssClasses;\n  }\n\n  static get defaultAdapter(): MDCDrawerAdapter {\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    return {\n      addClass: () => undefined,\n      removeClass: () => undefined,\n      hasClass: () => false,\n      elementHasClass: () => false,\n      notifyClose: () => undefined,\n      notifyOpen: () => undefined,\n      saveFocus: () => undefined,\n      restoreFocus: () => undefined,\n      focusActiveNavigationItem: () => undefined,\n      trapFocus: () => undefined,\n      releaseFocus: () => undefined,\n    };\n    // tslint:enable:object-literal-sort-keys\n  }\n\n  private animationFrame_ = 0;\n  private animationTimer_ = 0;\n\n  constructor(adapter?: Partial<MDCDrawerAdapter>) {\n    super({...MDCDismissibleDrawerFoundation.defaultAdapter, ...adapter});\n  }\n\n  destroy() {\n    if (this.animationFrame_) {\n      cancelAnimationFrame(this.animationFrame_);\n    }\n    if (this.animationTimer_) {\n      clearTimeout(this.animationTimer_);\n    }\n  }\n\n  /**\n   * Opens the drawer from the closed state.\n   */\n  open() {\n    if (this.isOpen() || this.isOpening() || this.isClosing()) {\n      return;\n    }\n\n    this.adapter_.addClass(cssClasses.OPEN);\n    this.adapter_.addClass(cssClasses.ANIMATE);\n\n    // Wait a frame once display is no longer \"none\", to establish basis for animation\n    this.runNextAnimationFrame_(() => {\n      this.adapter_.addClass(cssClasses.OPENING);\n    });\n\n    this.adapter_.saveFocus();\n  }\n\n  /**\n   * Closes the drawer from the open state.\n   */\n  close() {\n    if (!this.isOpen() || this.isOpening() || this.isClosing()) {\n      return;\n    }\n\n    this.adapter_.addClass(cssClasses.CLOSING);\n  }\n\n  /**\n   * Returns true if the drawer is in the open position.\n   * @return true if drawer is in open state.\n   */\n  isOpen(): boolean {\n    return this.adapter_.hasClass(cssClasses.OPEN);\n  }\n\n  /**\n   * Returns true if the drawer is animating open.\n   * @return true if drawer is animating open.\n   */\n  isOpening(): boolean {\n    return this.adapter_.hasClass(cssClasses.OPENING) || this.adapter_.hasClass(cssClasses.ANIMATE);\n  }\n\n  /**\n   * Returns true if the drawer is animating closed.\n   * @return true if drawer is animating closed.\n   */\n  isClosing(): boolean {\n    return this.adapter_.hasClass(cssClasses.CLOSING);\n  }\n\n  /**\n   * Keydown handler to close drawer when key is escape.\n   */\n  handleKeydown(evt: KeyboardEvent) {\n    const {keyCode, key} = evt;\n    const isEscape = key === 'Escape' || keyCode === 27;\n    if (isEscape) {\n      this.close();\n    }\n  }\n\n  /**\n   * Handles the `transitionend` event when the drawer finishes opening/closing.\n   */\n  handleTransitionEnd(evt: TransitionEvent) {\n    const {OPENING, CLOSING, OPEN, ANIMATE, ROOT} = cssClasses;\n\n    // In Edge, transitionend on ripple pseudo-elements yields a target without classList, so check for Element first.\n    const isRootElement = this.isElement_(evt.target) && this.adapter_.elementHasClass(evt.target, ROOT);\n    if (!isRootElement) {\n      return;\n    }\n\n    if (this.isClosing()) {\n      this.adapter_.removeClass(OPEN);\n      this.closed_();\n      this.adapter_.restoreFocus();\n      this.adapter_.notifyClose();\n    } else {\n      this.adapter_.focusActiveNavigationItem();\n      this.opened_();\n      this.adapter_.notifyOpen();\n    }\n\n    this.adapter_.removeClass(ANIMATE);\n    this.adapter_.removeClass(OPENING);\n    this.adapter_.removeClass(CLOSING);\n  }\n\n  /**\n   * Extension point for when drawer finishes open animation.\n   */\n  protected opened_() {} // tslint:disable-line:no-empty\n\n  /**\n   * Extension point for when drawer finishes close animation.\n   */\n  protected closed_() {} // tslint:disable-line:no-empty\n\n  /**\n   * Runs the given logic on the next animation frame, using setTimeout to factor in Firefox reflow behavior.\n   */\n  private runNextAnimationFrame_(callback: () => void) {\n    cancelAnimationFrame(this.animationFrame_);\n    this.animationFrame_ = requestAnimationFrame(() => {\n      this.animationFrame_ = 0;\n      clearTimeout(this.animationTimer_);\n      this.animationTimer_ = setTimeout(callback, 0);\n    });\n  }\n\n  private isElement_(element: unknown): element is Element {\n    // In Edge, transitionend on ripple pseudo-elements yields a target without classList.\n    return Boolean((element as Element).classList);\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCDismissibleDrawerFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport * as util from './util';\n\nexport {util};\nexport * from './adapter';\nexport * from './component';\nexport * from './constants';\nexport * from './dismissible/foundation';\nexport * from './modal/foundation';\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCDismissibleDrawerFoundation} from '../dismissible/foundation';\n\n/* istanbul ignore next: subclass is not a branch statement */\nexport class MDCModalDrawerFoundation extends MDCDismissibleDrawerFoundation {\n  /**\n   * Handles click event on scrim.\n   */\n  handleScrimClick() {\n    this.close();\n  }\n\n  /**\n   * Called when drawer finishes open animation.\n   */\n  protected opened_() {\n    this.adapter_.trapFocus();\n  }\n\n  /**\n   * Called when drawer finishes close animation.\n   */\n  protected closed_() {\n    this.adapter_.releaseFocus();\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCModalDrawerFoundation;\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {FocusOptions, FocusTrap} from '@material/dom/focus-trap';\n\nexport type MDCDrawerFocusTrapFactory = (\n    element: HTMLElement,\n    options: FocusOptions,\n) => FocusTrap;\n\nexport function createFocusTrapInstance(\n    surfaceEl: HTMLElement,\n    focusTrapFactory: MDCDrawerFocusTrapFactory,\n): FocusTrap {\n  return focusTrapFactory(surfaceEl, {\n    // Component handles focusing on active nav item.\n    skipInitialFocus: true, \n  });\n}\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {estimateScrollWidth} from '@material/dom/ponyfill';\nimport {MDCFloatingLabelAdapter} from './adapter';\nimport {MDCFloatingLabelFoundation} from './foundation';\n\nexport type MDCFloatingLabelFactory = (el: Element, foundation?: MDCFloatingLabelFoundation) => MDCFloatingLabel;\n\nexport class MDCFloatingLabel extends MDCComponent<MDCFloatingLabelFoundation> {\n  static attachTo(root: Element): MDCFloatingLabel {\n    return new MDCFloatingLabel(root);\n  }\n\n  /**\n   * Styles the label to produce the label shake for errors.\n   * @param shouldShake If true, shakes the label by adding a CSS class; otherwise, stops shaking by removing the class.\n   */\n  shake(shouldShake: boolean) {\n    this.foundation_.shake(shouldShake);\n  }\n\n  /**\n   * Styles the label to float/dock.\n   * @param shouldFloat If true, floats the label by adding a CSS class; otherwise, docks it by removing the class.\n   */\n  float(shouldFloat: boolean) {\n    this.foundation_.float(shouldFloat);\n  }\n\n  getWidth(): number {\n    return this.foundation_.getWidth();\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    const adapter: MDCFloatingLabelAdapter = {\n      addClass: (className) => this.root_.classList.add(className),\n      removeClass: (className) => this.root_.classList.remove(className),\n      getWidth: () => estimateScrollWidth(this.root_),\n      registerInteractionHandler: (evtType, handler) =>\n          this.listen(evtType, handler),\n      deregisterInteractionHandler: (evtType, handler) =>\n          this.unlisten(evtType, handler),\n    };\n    // tslint:enable:object-literal-sort-keys\n    return new MDCFloatingLabelFoundation(adapter);\n  }\n}\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport const cssClasses = {\n  LABEL_FLOAT_ABOVE: 'mdc-floating-label--float-above',\n  LABEL_SHAKE: 'mdc-floating-label--shake',\n  ROOT: 'mdc-floating-label',\n};\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {SpecificEventListener} from '@material/base/types';\nimport {MDCFloatingLabelAdapter} from './adapter';\nimport {cssClasses} from './constants';\n\nexport class MDCFloatingLabelFoundation extends MDCFoundation<MDCFloatingLabelAdapter> {\n  static get cssClasses() {\n    return cssClasses;\n  }\n\n  /**\n   * See {@link MDCFloatingLabelAdapter} for typing information on parameters and return types.\n   */\n  static get defaultAdapter(): MDCFloatingLabelAdapter {\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    return {\n      addClass: () => undefined,\n      removeClass: () => undefined,\n      getWidth: () => 0,\n      registerInteractionHandler: () => undefined,\n      deregisterInteractionHandler: () => undefined,\n    };\n    // tslint:enable:object-literal-sort-keys\n  }\n\n  private readonly shakeAnimationEndHandler_: SpecificEventListener<'animationend'>;\n\n  constructor(adapter?: Partial<MDCFloatingLabelAdapter>) {\n    super({...MDCFloatingLabelFoundation.defaultAdapter, ...adapter});\n\n    this.shakeAnimationEndHandler_ = () => this.handleShakeAnimationEnd_();\n  }\n\n  init() {\n    this.adapter_.registerInteractionHandler('animationend', this.shakeAnimationEndHandler_);\n  }\n\n  destroy() {\n    this.adapter_.deregisterInteractionHandler('animationend', this.shakeAnimationEndHandler_);\n  }\n\n  /**\n   * Returns the width of the label element.\n   */\n  getWidth(): number {\n    return this.adapter_.getWidth();\n  }\n\n  /**\n   * Styles the label to produce a shake animation to indicate an error.\n   * @param shouldShake If true, adds the shake CSS class; otherwise, removes shake class.\n   */\n  shake(shouldShake: boolean) {\n    const {LABEL_SHAKE} = MDCFloatingLabelFoundation.cssClasses;\n    if (shouldShake) {\n      this.adapter_.addClass(LABEL_SHAKE);\n    } else {\n      this.adapter_.removeClass(LABEL_SHAKE);\n    }\n  }\n\n  /**\n   * Styles the label to float or dock.\n   * @param shouldFloat If true, adds the float CSS class; otherwise, removes float and shake classes to dock the label.\n   */\n  float(shouldFloat: boolean) {\n    const {LABEL_FLOAT_ABOVE, LABEL_SHAKE} = MDCFloatingLabelFoundation.cssClasses;\n    if (shouldFloat) {\n      this.adapter_.addClass(LABEL_FLOAT_ABOVE);\n    } else {\n      this.adapter_.removeClass(LABEL_FLOAT_ABOVE);\n      this.adapter_.removeClass(LABEL_SHAKE);\n    }\n  }\n\n  private handleShakeAnimationEnd_() {\n    const {LABEL_SHAKE} = MDCFloatingLabelFoundation.cssClasses;\n    this.adapter_.removeClass(LABEL_SHAKE);\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCFloatingLabelFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport * from './adapter';\nexport * from './component';\nexport * from './constants';\nexport * from './foundation';\n","/**\n * @license\n * Copyright 2017 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {MDCRipple} from '@material/ripple/component';\nimport {MDCFormFieldAdapter} from './adapter';\nimport {MDCFormFieldFoundation} from './foundation';\n\nexport interface MDCFormFieldInput {\n  readonly ripple: MDCRipple | undefined;\n}\n\nexport class MDCFormField extends MDCComponent<MDCFormFieldFoundation> {\n  static attachTo(root: HTMLElement) {\n    return new MDCFormField(root);\n  }\n\n  private input_?: MDCFormFieldInput;\n\n  set input(input: MDCFormFieldInput | undefined) {\n    this.input_ = input;\n  }\n\n  get input(): MDCFormFieldInput | undefined {\n    return this.input_;\n  }\n\n  private get label_(): Element | null {\n    const {LABEL_SELECTOR} = MDCFormFieldFoundation.strings;\n    return this.root_.querySelector(LABEL_SELECTOR);\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    const adapter: MDCFormFieldAdapter = {\n      activateInputRipple: () => {\n        if (this.input_ && this.input_.ripple) {\n          this.input_.ripple.activate();\n        }\n      },\n      deactivateInputRipple: () => {\n        if (this.input_ && this.input_.ripple) {\n          this.input_.ripple.deactivate();\n        }\n      },\n      deregisterInteractionHandler: (evtType, handler) => {\n        if (this.label_) {\n          (this.label_ as HTMLElement).removeEventListener(evtType, handler);\n        }\n      },\n      registerInteractionHandler: (evtType, handler) => {\n        if (this.label_) {\n          (this.label_ as HTMLElement).addEventListener(evtType, handler);\n        }\n      },\n    };\n    return new MDCFormFieldFoundation(adapter);\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport const cssClasses = {\n  ROOT: 'mdc-form-field',\n};\n\nexport const strings = {\n  LABEL_SELECTOR: '.mdc-form-field > label',\n};\n","/**\n * @license\n * Copyright 2017 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {MDCFormFieldAdapter} from './adapter';\nimport {cssClasses, strings} from './constants';\n\nexport class MDCFormFieldFoundation extends MDCFoundation<MDCFormFieldAdapter> {\n  static get cssClasses() {\n    return cssClasses;\n  }\n\n  static get strings() {\n    return strings;\n  }\n\n  static get defaultAdapter(): MDCFormFieldAdapter {\n    return {\n      activateInputRipple: () => undefined,\n      deactivateInputRipple: () => undefined,\n      deregisterInteractionHandler: () => undefined,\n      registerInteractionHandler: () => undefined,\n    };\n  }\n\n  private readonly clickHandler_: () => void;\n\n  constructor(adapter?: Partial<MDCFormFieldAdapter>) {\n    super({...MDCFormFieldFoundation.defaultAdapter, ...adapter});\n\n    this.clickHandler_ = () => this.handleClick_();\n  }\n\n  init() {\n    this.adapter_.registerInteractionHandler('click', this.clickHandler_);\n  }\n\n  destroy() {\n    this.adapter_.deregisterInteractionHandler('click', this.clickHandler_);\n  }\n\n  private handleClick_() {\n    this.adapter_.activateInputRipple();\n    requestAnimationFrame(() => this.adapter_.deactivateInputRipple());\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCFormFieldFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport * from './adapter';\nexport * from './component';\nexport * from './constants';\nexport * from './foundation';\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {SpecificEventListener} from '@material/base/types';\nimport {MDCRipple} from '@material/ripple/component';\nimport {MDCIconButtonToggleAdapter} from './adapter';\nimport {MDCIconButtonToggleFoundation} from './foundation';\nimport {MDCIconButtonToggleEventDetail} from './types';\n\nconst {strings} = MDCIconButtonToggleFoundation;\n\nexport class MDCIconButtonToggle extends MDCComponent<MDCIconButtonToggleFoundation> {\n  static attachTo(root: HTMLElement) {\n    return new MDCIconButtonToggle(root);\n  }\n\n  protected root_!: HTMLElement; // assigned in MDCComponent constructor\n\n  private readonly ripple_: MDCRipple = this.createRipple_();\n  private handleClick_!: SpecificEventListener<'click'>; // assigned in initialSyncWithDOM()\n\n  initialSyncWithDOM() {\n    this.handleClick_ = () => this.foundation_.handleClick();\n    this.listen('click', this.handleClick_);\n  }\n\n  destroy() {\n    this.unlisten('click', this.handleClick_);\n    this.ripple_.destroy();\n    super.destroy();\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    const adapter: MDCIconButtonToggleAdapter = {\n      addClass: (className) => this.root_.classList.add(className),\n      hasClass: (className) => this.root_.classList.contains(className),\n      notifyChange: (evtData) => this.emit<MDCIconButtonToggleEventDetail>(strings.CHANGE_EVENT, evtData),\n      removeClass: (className) => this.root_.classList.remove(className),\n      setAttr: (attrName, attrValue) => this.root_.setAttribute(attrName, attrValue),\n    };\n    return new MDCIconButtonToggleFoundation(adapter);\n  }\n\n  get ripple(): MDCRipple {\n    return this.ripple_;\n  }\n\n  get on(): boolean {\n    return this.foundation_.isOn();\n  }\n\n  set on(isOn: boolean) {\n    this.foundation_.toggle(isOn);\n  }\n\n  private createRipple_(): MDCRipple {\n    const ripple = new MDCRipple(this.root_);\n    ripple.unbounded = true;\n    return ripple;\n  }\n}\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport const cssClasses = {\n  ICON_BUTTON_ON: 'mdc-icon-button--on',\n  ROOT: 'mdc-icon-button',\n};\n\nexport const strings = {\n  ARIA_PRESSED: 'aria-pressed',\n  CHANGE_EVENT: 'MDCIconButtonToggle:change',\n};\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {MDCIconButtonToggleAdapter} from './adapter';\nimport {cssClasses, strings} from './constants';\n\nexport class MDCIconButtonToggleFoundation extends MDCFoundation<MDCIconButtonToggleAdapter> {\n  static get cssClasses() {\n    return cssClasses;\n  }\n\n  static get strings() {\n    return strings;\n  }\n\n  static get defaultAdapter(): MDCIconButtonToggleAdapter {\n    return {\n      addClass: () => undefined,\n      hasClass: () => false,\n      notifyChange: () => undefined,\n      removeClass: () => undefined,\n      setAttr: () => undefined,\n    };\n  }\n\n  constructor(adapter?: Partial<MDCIconButtonToggleAdapter>) {\n    super({...MDCIconButtonToggleFoundation.defaultAdapter, ...adapter});\n  }\n\n  init() {\n    this.adapter_.setAttr(strings.ARIA_PRESSED, `${this.isOn()}`);\n  }\n\n  handleClick() {\n    this.toggle();\n    this.adapter_.notifyChange({isOn: this.isOn()});\n  }\n\n  isOn(): boolean {\n    return this.adapter_.hasClass(cssClasses.ICON_BUTTON_ON);\n  }\n\n  toggle(isOn: boolean = !this.isOn()) {\n    if (isOn) {\n      this.adapter_.addClass(cssClasses.ICON_BUTTON_ON);\n    } else {\n      this.adapter_.removeClass(cssClasses.ICON_BUTTON_ON);\n    }\n\n    this.adapter_.setAttr(strings.ARIA_PRESSED, `${isOn}`);\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCIconButtonToggleFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport * from './adapter';\nexport * from './component';\nexport * from './constants';\nexport * from './foundation';\nexport * from './types';\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {MDCLineRippleAdapter} from './adapter';\nimport {MDCLineRippleFoundation} from './foundation';\n\nexport type MDCLineRippleFactory = (el: Element, foundation?: MDCLineRippleFoundation) => MDCLineRipple;\n\nexport class MDCLineRipple extends MDCComponent<MDCLineRippleFoundation> {\n  static attachTo(root: Element): MDCLineRipple {\n    return new MDCLineRipple(root);\n  }\n\n  /**\n   * Activates the line ripple\n   */\n  activate() {\n    this.foundation_.activate();\n  }\n\n  /**\n   * Deactivates the line ripple\n   */\n  deactivate() {\n    this.foundation_.deactivate();\n  }\n\n  /**\n   * Sets the transform origin given a user's click location.\n   * The `rippleCenter` is the x-coordinate of the middle of the ripple.\n   */\n  setRippleCenter(xCoordinate: number) {\n    this.foundation_.setRippleCenter(xCoordinate);\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    const adapter: MDCLineRippleAdapter = {\n      addClass: (className) => this.root_.classList.add(className),\n      removeClass: (className) => this.root_.classList.remove(className),\n      hasClass: (className) => this.root_.classList.contains(className),\n      setStyle: (propertyName, value) => (this.root_ as HTMLElement).style.setProperty(propertyName, value),\n      registerEventHandler: (evtType, handler) => this.listen(evtType, handler),\n      deregisterEventHandler: (evtType, handler) => this.unlisten(evtType, handler),\n    };\n    // tslint:enable:object-literal-sort-keys\n    return new MDCLineRippleFoundation(adapter);\n  }\n}\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nconst cssClasses = {\n  LINE_RIPPLE_ACTIVE: 'mdc-line-ripple--active',\n  LINE_RIPPLE_DEACTIVATING: 'mdc-line-ripple--deactivating',\n};\n\nexport {cssClasses};\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {SpecificEventListener} from '@material/base/types';\nimport {MDCLineRippleAdapter} from './adapter';\nimport {cssClasses} from './constants';\n\nexport class MDCLineRippleFoundation extends MDCFoundation<MDCLineRippleAdapter> {\n  static get cssClasses() {\n    return cssClasses;\n  }\n\n  /**\n   * See {@link MDCLineRippleAdapter} for typing information on parameters and return types.\n   */\n  static get defaultAdapter(): MDCLineRippleAdapter {\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    return {\n      addClass: () => undefined,\n      removeClass: () => undefined,\n      hasClass: () => false,\n      setStyle: () => undefined,\n      registerEventHandler: () => undefined,\n      deregisterEventHandler: () => undefined,\n    };\n    // tslint:enable:object-literal-sort-keys\n  }\n\n  private readonly transitionEndHandler_: SpecificEventListener<'transitionend'>;\n\n  constructor(adapter?: Partial<MDCLineRippleAdapter>) {\n    super({...MDCLineRippleFoundation.defaultAdapter, ...adapter});\n\n    this.transitionEndHandler_ = (evt) => this.handleTransitionEnd(evt);\n  }\n\n  init() {\n    this.adapter_.registerEventHandler('transitionend', this.transitionEndHandler_);\n  }\n\n  destroy() {\n    this.adapter_.deregisterEventHandler('transitionend', this.transitionEndHandler_);\n  }\n\n  activate() {\n    this.adapter_.removeClass(cssClasses.LINE_RIPPLE_DEACTIVATING);\n    this.adapter_.addClass(cssClasses.LINE_RIPPLE_ACTIVE);\n  }\n\n  setRippleCenter(xCoordinate: number) {\n    this.adapter_.setStyle('transform-origin', `${xCoordinate}px center`);\n  }\n\n  deactivate() {\n    this.adapter_.addClass(cssClasses.LINE_RIPPLE_DEACTIVATING);\n  }\n\n  handleTransitionEnd(evt: TransitionEvent) {\n    // Wait for the line ripple to be either transparent or opaque\n    // before emitting the animation end event\n    const isDeactivating = this.adapter_.hasClass(cssClasses.LINE_RIPPLE_DEACTIVATING);\n\n    if (evt.propertyName === 'opacity') {\n      if (isDeactivating) {\n        this.adapter_.removeClass(cssClasses.LINE_RIPPLE_ACTIVE);\n        this.adapter_.removeClass(cssClasses.LINE_RIPPLE_DEACTIVATING);\n      }\n    }\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCLineRippleFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport * from './adapter';\nexport * from './component';\nexport * from './constants';\nexport * from './foundation';\n","/**\n * @license\n * Copyright 2017 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {MDCProgressIndicator} from '@material/progress-indicator/component';\nimport {MDCLinearProgressAdapter} from './adapter';\nimport {MDCLinearProgressFoundation} from './foundation';\n\nexport class MDCLinearProgress extends\n    MDCComponent<MDCLinearProgressFoundation> implements MDCProgressIndicator {\n  static attachTo(root: Element) {\n    return new MDCLinearProgress(root);\n  }\n\n  set determinate(value: boolean) {\n    this.foundation_.setDeterminate(value);\n  }\n\n  set progress(value: number) {\n    this.foundation_.setProgress(value);\n  }\n\n  set buffer(value: number) {\n    this.foundation_.setBuffer(value);\n  }\n\n  set reverse(value: boolean) {\n    this.foundation_.setReverse(value);\n  }\n\n  open() {\n    this.foundation_.open();\n  }\n\n  close() {\n    this.foundation_.close();\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    const adapter: MDCLinearProgressAdapter = {\n      addClass: (className: string) => this.root_.classList.add(className),\n      forceLayout: () => (this.root_ as HTMLElement).offsetWidth,\n      getBuffer: () => this.root_.querySelector(MDCLinearProgressFoundation.strings.BUFFER_SELECTOR),\n      getPrimaryBar: () => this.root_.querySelector(MDCLinearProgressFoundation.strings.PRIMARY_BAR_SELECTOR),\n      hasClass: (className: string) => this.root_.classList.contains(className),\n      removeAttribute: (attributeName: string) => {\n        this.root_.removeAttribute(attributeName);\n      },\n      removeClass: (className: string) => this.root_.classList.remove(className),\n      setAttribute: (attributeName: string, value: string) => {\n        this.root_.setAttribute(attributeName, value);\n      },\n      setStyle: (el: HTMLElement, styleProperty: string, value: string) => el.style.setProperty(styleProperty, value),\n    };\n    return new MDCLinearProgressFoundation(adapter);\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport const cssClasses = {\n  CLOSED_CLASS: 'mdc-linear-progress--closed',\n  INDETERMINATE_CLASS: 'mdc-linear-progress--indeterminate',\n  REVERSED_CLASS: 'mdc-linear-progress--reversed',\n};\n\nexport const strings = {\n  ARIA_VALUENOW: 'aria-valuenow',\n  BUFFER_SELECTOR: '.mdc-linear-progress__buffer',\n  PRIMARY_BAR_SELECTOR: '.mdc-linear-progress__primary-bar',\n};\n","/**\n * @license\n * Copyright 2017 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {getCorrectPropertyName} from '@material/animation/util';\nimport {MDCFoundation} from '@material/base/foundation';\nimport {MDCProgressIndicatorFoundation} from '@material/progress-indicator/foundation';\nimport {MDCLinearProgressAdapter} from './adapter';\nimport {cssClasses, strings} from './constants';\n\nexport class MDCLinearProgressFoundation extends\n    MDCFoundation<MDCLinearProgressAdapter> implements\n        MDCProgressIndicatorFoundation {\n  static get cssClasses() {\n    return cssClasses;\n  }\n\n  static get strings() {\n    return strings;\n  }\n\n  static get defaultAdapter(): MDCLinearProgressAdapter {\n    return {\n      addClass: () => undefined,\n      forceLayout: () => undefined,\n      getBuffer: () => null,\n      getPrimaryBar: () => null,\n      hasClass: () => false,\n      removeAttribute: () => undefined,\n      removeClass: () => undefined,\n      setAttribute: () => undefined,\n      setStyle: () => undefined,\n    };\n  }\n\n  private isDeterminate_!: boolean;\n  private isReversed_!: boolean;\n  private progress_!: number;\n  private buffer_!: number;\n\n  constructor(adapter?: Partial<MDCLinearProgressAdapter>) {\n    super({...MDCLinearProgressFoundation.defaultAdapter, ...adapter});\n  }\n\n  init() {\n    this.isDeterminate_ = !this.adapter_.hasClass(cssClasses.INDETERMINATE_CLASS);\n    this.isReversed_ = this.adapter_.hasClass(cssClasses.REVERSED_CLASS);\n    this.progress_ = 0;\n    this.buffer_ = 1;\n  }\n\n  setDeterminate(isDeterminate: boolean) {\n    this.isDeterminate_ = isDeterminate;\n\n    if (this.isDeterminate_) {\n      this.adapter_.removeClass(cssClasses.INDETERMINATE_CLASS);\n      this.adapter_.setAttribute(strings.ARIA_VALUENOW, this.progress_.toString());\n      this.setScale_(this.adapter_.getPrimaryBar(), this.progress_);\n      this.setScale_(this.adapter_.getBuffer(), this.buffer_);\n    } else {\n      if (this.isReversed_) {\n        // Adding/removing REVERSED_CLASS starts a translate animation, while\n        // adding INDETERMINATE_CLASS starts a scale animation. Here, we reset\n        // the translate animation in order to keep it in sync with the new\n        // scale animation that will start from adding INDETERMINATE_CLASS\n        // below.\n        this.adapter_.removeClass(cssClasses.REVERSED_CLASS);\n        this.adapter_.forceLayout();\n        this.adapter_.addClass(cssClasses.REVERSED_CLASS);\n      }\n\n      this.adapter_.addClass(cssClasses.INDETERMINATE_CLASS);\n      this.adapter_.removeAttribute(strings.ARIA_VALUENOW);\n      this.setScale_(this.adapter_.getPrimaryBar(), 1);\n      this.setScale_(this.adapter_.getBuffer(), 1);\n    }\n  }\n\n  setProgress(value: number) {\n    this.progress_ = value;\n    if (this.isDeterminate_) {\n      this.setScale_(this.adapter_.getPrimaryBar(), value);\n      this.adapter_.setAttribute(strings.ARIA_VALUENOW, value.toString());\n    }\n  }\n\n  setBuffer(value: number) {\n    this.buffer_ = value;\n    if (this.isDeterminate_) {\n      this.setScale_(this.adapter_.getBuffer(), value);\n    }\n  }\n\n  setReverse(isReversed: boolean) {\n    this.isReversed_ = isReversed;\n\n    if (!this.isDeterminate_) {\n      // Adding INDETERMINATE_CLASS starts a scale animation, while\n      // adding/removing REVERSED_CLASS starts a translate animation. Here, we\n      // reset the scale animation in order to keep it in sync with the new\n      // translate animation that will start from adding/removing REVERSED_CLASS\n      // below.\n      this.adapter_.removeClass(cssClasses.INDETERMINATE_CLASS);\n      this.adapter_.forceLayout();\n      this.adapter_.addClass(cssClasses.INDETERMINATE_CLASS);\n    }\n\n    if (this.isReversed_) {\n      this.adapter_.addClass(cssClasses.REVERSED_CLASS);\n    } else {\n      this.adapter_.removeClass(cssClasses.REVERSED_CLASS);\n    }\n  }\n\n  open() {\n    this.adapter_.removeClass(cssClasses.CLOSED_CLASS);\n  }\n\n  close() {\n    this.adapter_.addClass(cssClasses.CLOSED_CLASS);\n  }\n\n  private setScale_(el: HTMLElement | null, scaleValue: number) {\n    if (!el) {\n      return;\n    }\n    const value = `scaleX(${scaleValue})`;\n    this.adapter_.setStyle(el, getCorrectPropertyName(window, 'transform'), value);\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCLinearProgressFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport * from './adapter';\nexport * from './component';\nexport * from './constants';\nexport * from './foundation';\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {SpecificEventListener} from '@material/base/types';\nimport {closest, matches} from '@material/dom/ponyfill';\nimport {MDCListAdapter} from './adapter';\nimport {cssClasses, strings} from './constants';\nimport {MDCListFoundation} from './foundation';\nimport {MDCListActionEventDetail, MDCListIndex} from './types';\n\nexport type MDCListFactory = (el: Element, foundation?: MDCListFoundation) => MDCList;\n\nexport class MDCList extends MDCComponent<MDCListFoundation> {\n  set vertical(value: boolean) {\n    this.foundation_.setVerticalOrientation(value);\n  }\n\n  get listElements(): Element[] {\n    return [].slice.call(this.root_.querySelectorAll(`.${cssClasses.LIST_ITEM_CLASS}`));\n  }\n\n  set wrapFocus(value: boolean) {\n    this.foundation_.setWrapFocus(value);\n  }\n\n  set singleSelection(isSingleSelectionList: boolean) {\n    this.foundation_.setSingleSelection(isSingleSelectionList);\n  }\n\n  get selectedIndex(): MDCListIndex {\n    return this.foundation_.getSelectedIndex();\n  }\n\n  set selectedIndex(index: MDCListIndex) {\n    this.foundation_.setSelectedIndex(index);\n  }\n\n  static attachTo(root: Element) {\n    return new MDCList(root);\n  }\n\n  private handleKeydown_!: SpecificEventListener<'keydown'>; // assigned in initialSyncWithDOM()\n  private handleClick_!: SpecificEventListener<'click'>; // assigned in initialSyncWithDOM()\n  private focusInEventListener_!: SpecificEventListener<'focus'>; // assigned in initialSyncWithDOM()\n  private focusOutEventListener_!: SpecificEventListener<'focus'>; // assigned in initialSyncWithDOM()\n\n  initialSyncWithDOM() {\n    this.handleClick_ = this.handleClickEvent_.bind(this);\n    this.handleKeydown_ = this.handleKeydownEvent_.bind(this);\n    this.focusInEventListener_ = this.handleFocusInEvent_.bind(this);\n    this.focusOutEventListener_ = this.handleFocusOutEvent_.bind(this);\n    this.listen('keydown', this.handleKeydown_);\n    this.listen('click', this.handleClick_);\n    this.listen('focusin', this.focusInEventListener_);\n    this.listen('focusout', this.focusOutEventListener_);\n    this.layout();\n    this.initializeListType();\n  }\n\n  destroy() {\n    this.unlisten('keydown', this.handleKeydown_);\n    this.unlisten('click', this.handleClick_);\n    this.unlisten('focusin', this.focusInEventListener_);\n    this.unlisten('focusout', this.focusOutEventListener_);\n  }\n\n  layout() {\n    const direction = this.root_.getAttribute(strings.ARIA_ORIENTATION);\n    this.vertical = direction !== strings.ARIA_ORIENTATION_HORIZONTAL;\n\n    // List items need to have at least tabindex=-1 to be focusable.\n    [].slice.call(this.root_.querySelectorAll('.mdc-list-item:not([tabindex])'))\n        .forEach((el: Element) => {\n          el.setAttribute('tabindex', '-1');\n        });\n\n    // Child button/a elements are not tabbable until the list item is focused.\n    [].slice.call(this.root_.querySelectorAll(strings.FOCUSABLE_CHILD_ELEMENTS))\n        .forEach((el: Element) => el.setAttribute('tabindex', '-1'));\n\n    this.foundation_.layout();\n  }\n\n  /**\n   * Initialize selectedIndex value based on pre-selected checkbox list items, single selection or radio.\n   */\n  initializeListType() {\n    const checkboxListItems = this.root_.querySelectorAll(strings.ARIA_ROLE_CHECKBOX_SELECTOR);\n    const singleSelectedListItem = this.root_.querySelector(`\n      .${cssClasses.LIST_ITEM_ACTIVATED_CLASS},\n      .${cssClasses.LIST_ITEM_SELECTED_CLASS}\n    `);\n    const radioSelectedListItem = this.root_.querySelector(strings.ARIA_CHECKED_RADIO_SELECTOR);\n\n    if (checkboxListItems.length) {\n      const preselectedItems = this.root_.querySelectorAll(strings.ARIA_CHECKED_CHECKBOX_SELECTOR);\n      this.selectedIndex =\n          [].map.call(preselectedItems, (listItem: Element) => this.listElements.indexOf(listItem)) as number[];\n    } else if (singleSelectedListItem) {\n      if (singleSelectedListItem.classList.contains(cssClasses.LIST_ITEM_ACTIVATED_CLASS)) {\n        this.foundation_.setUseActivatedClass(true);\n      }\n\n      this.singleSelection = true;\n      this.selectedIndex = this.listElements.indexOf(singleSelectedListItem);\n    } else if (radioSelectedListItem) {\n      this.selectedIndex = this.listElements.indexOf(radioSelectedListItem);\n    }\n  }\n\n  /**\n   * Updates the list item at itemIndex to the desired isEnabled state.\n   * @param itemIndex Index of the list item\n   * @param isEnabled Sets the list item to enabled or disabled.\n   */\n  setEnabled(itemIndex: number, isEnabled: boolean) {\n    this.foundation_.setEnabled(itemIndex, isEnabled);\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    const adapter: MDCListAdapter = {\n      addClassForElementIndex: (index, className) => {\n        const element = this.listElements[index];\n        if (element) {\n          element.classList.add(className);\n        }\n      },\n      focusItemAtIndex: (index) => {\n        const element = this.listElements[index] as HTMLElement | undefined;\n        if (element) {\n          element.focus();\n        }\n      },\n      getAttributeForElementIndex: (index, attr) => this.listElements[index].getAttribute(attr),\n      getFocusedElementIndex: () => this.listElements.indexOf(document.activeElement!),\n      getListItemCount: () => this.listElements.length,\n      hasCheckboxAtIndex: (index) => {\n        const listItem = this.listElements[index];\n        return !!listItem.querySelector(strings.CHECKBOX_SELECTOR);\n      },\n      hasRadioAtIndex: (index) => {\n        const listItem = this.listElements[index];\n        return !!listItem.querySelector(strings.RADIO_SELECTOR);\n      },\n      isCheckboxCheckedAtIndex: (index) => {\n        const listItem = this.listElements[index];\n        const toggleEl = listItem.querySelector<HTMLInputElement>(strings.CHECKBOX_SELECTOR);\n        return toggleEl!.checked;\n      },\n      isFocusInsideList: () => {\n        return this.root_.contains(document.activeElement);\n      },\n      isRootFocused: () => document.activeElement === this.root_,\n      listItemAtIndexHasClass: (index, className) => this.listElements[index].classList.contains(className),\n      notifyAction: (index) => {\n        this.emit<MDCListActionEventDetail>(strings.ACTION_EVENT, {index}, /** shouldBubble */ true);\n      },\n      removeClassForElementIndex: (index, className) => {\n        const element = this.listElements[index];\n        if (element) {\n          element.classList.remove(className);\n        }\n      },\n      setAttributeForElementIndex: (index, attr, value) => {\n        const element = this.listElements[index];\n        if (element) {\n          element.setAttribute(attr, value);\n        }\n      },\n      setCheckedCheckboxOrRadioAtIndex: (index, isChecked) => {\n        const listItem = this.listElements[index];\n        const toggleEl = listItem.querySelector<HTMLInputElement>(strings.CHECKBOX_RADIO_SELECTOR);\n        toggleEl!.checked = isChecked;\n\n        const event = document.createEvent('Event');\n        event.initEvent('change', true, true);\n        toggleEl!.dispatchEvent(event);\n      },\n      setTabIndexForListItemChildren: (listItemIndex, tabIndexValue) => {\n        const element = this.listElements[listItemIndex];\n        const listItemChildren: Element[] =\n            [].slice.call(element.querySelectorAll(strings.CHILD_ELEMENTS_TO_TOGGLE_TABINDEX));\n        listItemChildren.forEach((el) => el.setAttribute('tabindex', tabIndexValue));\n      },\n    };\n    return new MDCListFoundation(adapter);\n  }\n\n  /**\n   * Used to figure out which list item this event is targetting. Or returns -1 if\n   * there is no list item\n   */\n  private getListItemIndex_(evt: Event) {\n    const eventTarget = evt.target as Element;\n    const nearestParent = closest(eventTarget, `.${cssClasses.LIST_ITEM_CLASS}, .${cssClasses.ROOT}`);\n\n    // Get the index of the element if it is a list item.\n    if (nearestParent && matches(nearestParent, `.${cssClasses.LIST_ITEM_CLASS}`)) {\n      return this.listElements.indexOf(nearestParent);\n    }\n\n    return -1;\n  }\n\n  /**\n   * Used to figure out which element was clicked before sending the event to the foundation.\n   */\n  private handleFocusInEvent_(evt: FocusEvent) {\n    const index = this.getListItemIndex_(evt);\n    this.foundation_.handleFocusIn(evt, index);\n  }\n\n  /**\n   * Used to figure out which element was clicked before sending the event to the foundation.\n   */\n  private handleFocusOutEvent_(evt: FocusEvent) {\n    const index = this.getListItemIndex_(evt);\n    this.foundation_.handleFocusOut(evt, index);\n  }\n\n  /**\n   * Used to figure out which element was focused when keydown event occurred before sending the event to the\n   * foundation.\n   */\n  private handleKeydownEvent_(evt: KeyboardEvent) {\n    const index = this.getListItemIndex_(evt);\n    const target = evt.target as Element;\n    this.foundation_.handleKeydown(evt, target.classList.contains(cssClasses.LIST_ITEM_CLASS), index);\n  }\n\n  /**\n   * Used to figure out which element was clicked before sending the event to the foundation.\n   */\n  private handleClickEvent_(evt: MouseEvent) {\n    const index = this.getListItemIndex_(evt);\n    const target = evt.target as Element;\n\n    // Toggle the checkbox only if it's not the target of the event, or the checkbox will have 2 change events.\n    const toggleCheckbox = !matches(target, strings.CHECKBOX_RADIO_SELECTOR);\n    this.foundation_.handleClick(index, toggleCheckbox);\n  }\n}\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nconst cssClasses = {\n  LIST_ITEM_ACTIVATED_CLASS: 'mdc-list-item--activated',\n  LIST_ITEM_CLASS: 'mdc-list-item',\n  LIST_ITEM_DISABLED_CLASS: 'mdc-list-item--disabled',\n  LIST_ITEM_SELECTED_CLASS: 'mdc-list-item--selected',\n  ROOT: 'mdc-list',\n};\n\nconst strings = {\n  ACTION_EVENT: 'MDCList:action',\n  ARIA_CHECKED: 'aria-checked',\n  ARIA_CHECKED_CHECKBOX_SELECTOR: '[role=\"checkbox\"][aria-checked=\"true\"]',\n  ARIA_CHECKED_RADIO_SELECTOR: '[role=\"radio\"][aria-checked=\"true\"]',\n  ARIA_CURRENT: 'aria-current',\n  ARIA_DISABLED: 'aria-disabled',\n  ARIA_ORIENTATION: 'aria-orientation',\n  ARIA_ORIENTATION_HORIZONTAL: 'horizontal',\n  ARIA_ROLE_CHECKBOX_SELECTOR: '[role=\"checkbox\"]',\n  ARIA_SELECTED: 'aria-selected',\n  CHECKBOX_RADIO_SELECTOR: 'input[type=\"checkbox\"], input[type=\"radio\"]',\n  CHECKBOX_SELECTOR: 'input[type=\"checkbox\"]',\n  CHILD_ELEMENTS_TO_TOGGLE_TABINDEX: `\n    .${cssClasses.LIST_ITEM_CLASS} button:not(:disabled),\n    .${cssClasses.LIST_ITEM_CLASS} a\n  `,\n  FOCUSABLE_CHILD_ELEMENTS: `\n    .${cssClasses.LIST_ITEM_CLASS} button:not(:disabled),\n    .${cssClasses.LIST_ITEM_CLASS} a,\n    .${cssClasses.LIST_ITEM_CLASS} input[type=\"radio\"]:not(:disabled),\n    .${cssClasses.LIST_ITEM_CLASS} input[type=\"checkbox\"]:not(:disabled)\n  `,\n  RADIO_SELECTOR: 'input[type=\"radio\"]',\n};\n\nconst numbers = {\n  UNSET_INDEX: -1,\n};\n\nexport {strings, cssClasses, numbers};\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {MDCListAdapter} from './adapter';\nimport {cssClasses, numbers, strings} from './constants';\nimport {MDCListIndex} from './types';\n\nconst ELEMENTS_KEY_ALLOWED_IN = ['input', 'button', 'textarea', 'select'];\n\nfunction isNumberArray(selectedIndex: MDCListIndex): selectedIndex is number[] {\n  return selectedIndex instanceof Array;\n}\n\nexport class MDCListFoundation extends MDCFoundation<MDCListAdapter> {\n  static get strings() {\n    return strings;\n  }\n\n  static get cssClasses() {\n    return cssClasses;\n  }\n\n  static get numbers() {\n    return numbers;\n  }\n\n  static get defaultAdapter(): MDCListAdapter {\n    return {\n      addClassForElementIndex: () => undefined,\n      focusItemAtIndex: () => undefined,\n      getAttributeForElementIndex: () => null,\n      getFocusedElementIndex: () => 0,\n      getListItemCount: () => 0,\n      hasCheckboxAtIndex: () => false,\n      hasRadioAtIndex: () => false,\n      isCheckboxCheckedAtIndex: () => false,\n      isFocusInsideList: () => false,\n      isRootFocused: () => false,\n      listItemAtIndexHasClass: () => false,\n      notifyAction: () => undefined,\n      removeClassForElementIndex: () => undefined,\n      setAttributeForElementIndex: () => undefined,\n      setCheckedCheckboxOrRadioAtIndex: () => undefined,\n      setTabIndexForListItemChildren: () => undefined,\n    };\n  }\n\n  private wrapFocus_ = false;\n  private isVertical_ = true;\n  private isSingleSelectionList_ = false;\n  private selectedIndex_: MDCListIndex = numbers.UNSET_INDEX;\n  private focusedItemIndex_ = numbers.UNSET_INDEX;\n  private useActivatedClass_ = false;\n  private ariaCurrentAttrValue_: string | null = null;\n  private isCheckboxList_ = false;\n  private isRadioList_ = false;\n\n  constructor(adapter?: Partial<MDCListAdapter>) {\n    super({...MDCListFoundation.defaultAdapter, ...adapter});\n  }\n\n  layout() {\n    if (this.adapter_.getListItemCount() === 0) {\n      return;\n    }\n\n    if (this.adapter_.hasCheckboxAtIndex(0)) {\n      this.isCheckboxList_ = true;\n    } else if (this.adapter_.hasRadioAtIndex(0)) {\n      this.isRadioList_ = true;\n    }\n  }\n\n  /**\n   * Sets the private wrapFocus_ variable.\n   */\n  setWrapFocus(value: boolean) {\n    this.wrapFocus_ = value;\n  }\n\n  /**\n   * Sets the isVertical_ private variable.\n   */\n  setVerticalOrientation(value: boolean) {\n    this.isVertical_ = value;\n  }\n\n  /**\n   * Sets the isSingleSelectionList_ private variable.\n   */\n  setSingleSelection(value: boolean) {\n    this.isSingleSelectionList_ = value;\n  }\n\n  /**\n   * Sets the useActivatedClass_ private variable.\n   */\n  setUseActivatedClass(useActivated: boolean) {\n    this.useActivatedClass_ = useActivated;\n  }\n\n  getSelectedIndex(): MDCListIndex {\n    return this.selectedIndex_;\n  }\n\n  setSelectedIndex(index: MDCListIndex) {\n    if (!this.isIndexValid_(index)) {\n      return;\n    }\n\n    if (this.isCheckboxList_) {\n      this.setCheckboxAtIndex_(index as number[]);\n    } else if (this.isRadioList_) {\n      this.setRadioAtIndex_(index as number);\n    } else {\n      this.setSingleSelectionAtIndex_(index as number);\n    }\n  }\n\n  /**\n   * Focus in handler for the list items.\n   */\n  handleFocusIn(_: FocusEvent, listItemIndex: number) {\n    if (listItemIndex >= 0) {\n      this.adapter_.setTabIndexForListItemChildren(listItemIndex, '0');\n    }\n  }\n\n  /**\n   * Focus out handler for the list items.\n   */\n  handleFocusOut(_: FocusEvent, listItemIndex: number) {\n    if (listItemIndex >= 0) {\n      this.adapter_.setTabIndexForListItemChildren(listItemIndex, '-1');\n    }\n\n    /**\n     * Between Focusout & Focusin some browsers do not have focus on any element. Setting a delay to wait till the focus\n     * is moved to next element.\n     */\n    setTimeout(() => {\n      if (!this.adapter_.isFocusInsideList()) {\n        this.setTabindexToFirstSelectedItem_();\n      }\n    }, 0);\n  }\n\n  /**\n   * Key handler for the list.\n   */\n  handleKeydown(evt: KeyboardEvent, isRootListItem: boolean, listItemIndex: number) {\n    const isArrowLeft = evt.key === 'ArrowLeft' || evt.keyCode === 37;\n    const isArrowUp = evt.key === 'ArrowUp' || evt.keyCode === 38;\n    const isArrowRight = evt.key === 'ArrowRight' || evt.keyCode === 39;\n    const isArrowDown = evt.key === 'ArrowDown' || evt.keyCode === 40;\n    const isHome = evt.key === 'Home' || evt.keyCode === 36;\n    const isEnd = evt.key === 'End' || evt.keyCode === 35;\n    const isEnter = evt.key === 'Enter' || evt.keyCode === 13;\n    const isSpace = evt.key === 'Space' || evt.keyCode === 32;\n\n    if (this.adapter_.isRootFocused()) {\n      if (isArrowUp || isEnd) {\n        evt.preventDefault();\n        this.focusLastElement();\n      } else if (isArrowDown || isHome) {\n        evt.preventDefault();\n        this.focusFirstElement();\n      }\n\n      return;\n    }\n\n    let currentIndex = this.adapter_.getFocusedElementIndex();\n    if (currentIndex === -1) {\n      currentIndex = listItemIndex;\n      if (currentIndex < 0) {\n        // If this event doesn't have a mdc-list-item ancestor from the\n        // current list (not from a sublist), return early.\n        return;\n      }\n    }\n\n    let nextIndex;\n    if ((this.isVertical_ && isArrowDown) || (!this.isVertical_ && isArrowRight)) {\n      this.preventDefaultEvent_(evt);\n      nextIndex = this.focusNextElement(currentIndex);\n    } else if ((this.isVertical_ && isArrowUp) || (!this.isVertical_ && isArrowLeft)) {\n      this.preventDefaultEvent_(evt);\n      nextIndex = this.focusPrevElement(currentIndex);\n    } else if (isHome) {\n      this.preventDefaultEvent_(evt);\n      nextIndex = this.focusFirstElement();\n    } else if (isEnd) {\n      this.preventDefaultEvent_(evt);\n      nextIndex = this.focusLastElement();\n    } else if (isEnter || isSpace) {\n      if (isRootListItem) {\n        // Return early if enter key is pressed on anchor element which triggers synthetic MouseEvent event.\n        const target = evt.target as Element | null;\n        if (target && target.tagName === 'A' && isEnter) {\n          return;\n        }\n        this.preventDefaultEvent_(evt);\n\n        if (this.isSelectableList_()) {\n          this.setSelectedIndexOnAction_(currentIndex);\n        }\n\n        this.adapter_.notifyAction(currentIndex);\n      }\n    }\n\n    this.focusedItemIndex_ = currentIndex;\n\n    if (nextIndex !== undefined) {\n      this.setTabindexAtIndex_(nextIndex);\n      this.focusedItemIndex_ = nextIndex;\n    }\n  }\n\n  /**\n   * Click handler for the list.\n   */\n  handleClick(index: number, toggleCheckbox: boolean) {\n    if (index === numbers.UNSET_INDEX) {\n      return;\n    }\n\n    if (this.isSelectableList_()) {\n      this.setSelectedIndexOnAction_(index, toggleCheckbox);\n    }\n\n    this.adapter_.notifyAction(index);\n\n    this.setTabindexAtIndex_(index);\n    this.focusedItemIndex_ = index;\n  }\n\n  /**\n   * Focuses the next element on the list.\n   */\n  focusNextElement(index: number) {\n    const count = this.adapter_.getListItemCount();\n    let nextIndex = index + 1;\n    if (nextIndex >= count) {\n      if (this.wrapFocus_) {\n        nextIndex = 0;\n      } else {\n        // Return early because last item is already focused.\n        return index;\n      }\n    }\n    this.adapter_.focusItemAtIndex(nextIndex);\n\n    return nextIndex;\n  }\n\n  /**\n   * Focuses the previous element on the list.\n   */\n  focusPrevElement(index: number) {\n    let prevIndex = index - 1;\n    if (prevIndex < 0) {\n      if (this.wrapFocus_) {\n        prevIndex = this.adapter_.getListItemCount() - 1;\n      } else {\n        // Return early because first item is already focused.\n        return index;\n      }\n    }\n    this.adapter_.focusItemAtIndex(prevIndex);\n\n    return prevIndex;\n  }\n\n  focusFirstElement() {\n    this.adapter_.focusItemAtIndex(0);\n    return 0;\n  }\n\n  focusLastElement() {\n    const lastIndex = this.adapter_.getListItemCount() - 1;\n    this.adapter_.focusItemAtIndex(lastIndex);\n    return lastIndex;\n  }\n\n  /**\n   * @param itemIndex Index of the list item\n   * @param isEnabled Sets the list item to enabled or disabled.\n   */\n  setEnabled(itemIndex: number, isEnabled: boolean): void {\n    if (!this.isIndexValid_(itemIndex)) {\n      return;\n    }\n\n    if (isEnabled) {\n      this.adapter_.removeClassForElementIndex(itemIndex, cssClasses.LIST_ITEM_DISABLED_CLASS);\n      this.adapter_.setAttributeForElementIndex(itemIndex, strings.ARIA_DISABLED, 'false');\n    } else {\n      this.adapter_.addClassForElementIndex(itemIndex, cssClasses.LIST_ITEM_DISABLED_CLASS);\n      this.adapter_.setAttributeForElementIndex(itemIndex, strings.ARIA_DISABLED, 'true');\n    }\n  }\n\n  /**\n   * Ensures that preventDefault is only called if the containing element doesn't\n   * consume the event, and it will cause an unintended scroll.\n   */\n  private preventDefaultEvent_(evt: KeyboardEvent) {\n    const target = evt.target as Element;\n    const tagName = `${target.tagName}`.toLowerCase();\n    if (ELEMENTS_KEY_ALLOWED_IN.indexOf(tagName) === -1) {\n      evt.preventDefault();\n    }\n  }\n\n  private setSingleSelectionAtIndex_(index: number) {\n    if (this.selectedIndex_ === index) {\n      return;\n    }\n\n    let selectedClassName = cssClasses.LIST_ITEM_SELECTED_CLASS;\n    if (this.useActivatedClass_) {\n      selectedClassName = cssClasses.LIST_ITEM_ACTIVATED_CLASS;\n    }\n\n    if (this.selectedIndex_ !== numbers.UNSET_INDEX) {\n      this.adapter_.removeClassForElementIndex(this.selectedIndex_ as number, selectedClassName);\n    }\n    this.adapter_.addClassForElementIndex(index, selectedClassName);\n    this.setAriaForSingleSelectionAtIndex_(index);\n\n    this.selectedIndex_ = index;\n  }\n\n  /**\n   * Sets aria attribute for single selection at given index.\n   */\n  private setAriaForSingleSelectionAtIndex_(index: number) {\n    // Detect the presence of aria-current and get the value only during list initialization when it is in unset state.\n    if (this.selectedIndex_ === numbers.UNSET_INDEX) {\n      this.ariaCurrentAttrValue_ =\n            this.adapter_.getAttributeForElementIndex(index, strings.ARIA_CURRENT);\n    }\n\n    const isAriaCurrent = this.ariaCurrentAttrValue_ !== null;\n    const ariaAttribute = isAriaCurrent ? strings.ARIA_CURRENT : strings.ARIA_SELECTED;\n\n    if (this.selectedIndex_ !== numbers.UNSET_INDEX) {\n      this.adapter_.setAttributeForElementIndex(this.selectedIndex_ as number, ariaAttribute, 'false');\n    }\n\n    const ariaAttributeValue = isAriaCurrent ? this.ariaCurrentAttrValue_ : 'true';\n    this.adapter_.setAttributeForElementIndex(index, ariaAttribute, ariaAttributeValue as string);\n  }\n\n  /**\n   * Toggles radio at give index. Radio doesn't change the checked state if it is already checked.\n   */\n  private setRadioAtIndex_(index: number) {\n    this.adapter_.setCheckedCheckboxOrRadioAtIndex(index, true);\n\n    if (this.selectedIndex_ !== numbers.UNSET_INDEX) {\n      this.adapter_.setAttributeForElementIndex(this.selectedIndex_ as number, strings.ARIA_CHECKED, 'false');\n    }\n\n    this.adapter_.setAttributeForElementIndex(index, strings.ARIA_CHECKED, 'true');\n\n    this.selectedIndex_ = index;\n  }\n\n  private setCheckboxAtIndex_(index: number[]) {\n    for (let i = 0; i < this.adapter_.getListItemCount(); i++) {\n      let isChecked = false;\n      if (index.indexOf(i) >= 0) {\n        isChecked = true;\n      }\n\n      this.adapter_.setCheckedCheckboxOrRadioAtIndex(i, isChecked);\n      this.adapter_.setAttributeForElementIndex(i, strings.ARIA_CHECKED, isChecked ? 'true' : 'false');\n    }\n\n    this.selectedIndex_ = index;\n  }\n\n  private setTabindexAtIndex_(index: number) {\n    if (this.focusedItemIndex_ === numbers.UNSET_INDEX && index !== 0) {\n      // If no list item was selected set first list item's tabindex to -1.\n      // Generally, tabindex is set to 0 on first list item of list that has no preselected items.\n      this.adapter_.setAttributeForElementIndex(0, 'tabindex', '-1');\n    } else if (this.focusedItemIndex_ >= 0 && this.focusedItemIndex_ !== index) {\n      this.adapter_.setAttributeForElementIndex(this.focusedItemIndex_, 'tabindex', '-1');\n    }\n\n    this.adapter_.setAttributeForElementIndex(index, 'tabindex', '0');\n  }\n\n  /**\n   * @return Return true if it is single selectin list, checkbox list or radio list.\n   */\n  private isSelectableList_() {\n    return this.isSingleSelectionList_ || this.isCheckboxList_ || this.isRadioList_;\n  }\n\n  private setTabindexToFirstSelectedItem_() {\n    let targetIndex = 0;\n\n    if (this.isSelectableList_()) {\n      if (typeof this.selectedIndex_ === 'number' && this.selectedIndex_ !== numbers.UNSET_INDEX) {\n        targetIndex = this.selectedIndex_;\n      } else if (isNumberArray(this.selectedIndex_) && this.selectedIndex_.length > 0) {\n        targetIndex = this.selectedIndex_.reduce((currentIndex, minIndex) => Math.min(currentIndex, minIndex));\n      }\n    }\n\n    this.setTabindexAtIndex_(targetIndex);\n  }\n\n  private isIndexValid_(index: MDCListIndex) {\n    if (index instanceof Array) {\n      if (!this.isCheckboxList_) {\n        throw new Error('MDCListFoundation: Array of index is only supported for checkbox based list');\n      }\n\n      if (index.length === 0) {\n        return true;\n      } else {\n        return index.some((i) => this.isIndexInRange_(i));\n      }\n    } else if (typeof index === 'number') {\n      if (this.isCheckboxList_) {\n        throw new Error('MDCListFoundation: Expected array of index for checkbox based list but got number: ' + index);\n      }\n      return this.isIndexInRange_(index);\n    } else {\n      return false;\n    }\n  }\n\n  private isIndexInRange_(index: number) {\n    const listSize = this.adapter_.getListItemCount();\n    return index >= 0 && index < listSize;\n  }\n\n  /**\n   * Sets selected index on user action, toggles checkbox / radio based on toggleCheckbox value.\n   * User interaction should not toggle list item(s) when disabled.\n   */\n  private setSelectedIndexOnAction_(index: number, toggleCheckbox = true) {\n    if (this.adapter_.listItemAtIndexHasClass(index, cssClasses.LIST_ITEM_DISABLED_CLASS)) {\n      return;\n    }\n\n    if (this.isCheckboxList_) {\n      this.toggleCheckboxAtIndex_(index, toggleCheckbox);\n    } else {\n      this.setSelectedIndex(index);\n    }\n  }\n\n  private toggleCheckboxAtIndex_(index: number, toggleCheckbox: boolean) {\n    let isChecked = this.adapter_.isCheckboxCheckedAtIndex(index);\n\n    if (toggleCheckbox) {\n      isChecked = !isChecked;\n      this.adapter_.setCheckedCheckboxOrRadioAtIndex(index, isChecked);\n    }\n\n    this.adapter_.setAttributeForElementIndex(index, strings.ARIA_CHECKED, isChecked ? 'true' : 'false');\n\n    // If none of the checkbox items are selected and selectedIndex is not initialized then provide a default value.\n    let selectedIndexes = this.selectedIndex_ === numbers.UNSET_INDEX ? [] : (this.selectedIndex_ as number[]).slice();\n\n    if (isChecked) {\n      selectedIndexes.push(index);\n    } else {\n      selectedIndexes = selectedIndexes.filter((i) => i !== index);\n    }\n\n    this.selectedIndex_ = selectedIndexes;\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCListFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport * from './adapter';\nexport * from './component';\nexport * from './constants';\nexport * from './foundation';\nexport * from './types';\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {SpecificEventListener} from '@material/base/types';\nimport {MDCMenuSurfaceAdapter} from './adapter';\nimport {Corner, cssClasses, strings} from './constants';\nimport {MDCMenuSurfaceFoundation} from './foundation';\nimport {MDCMenuDistance} from './types';\nimport * as util from './util';\n\ntype RegisterFunction = () => void;\n\nexport type MDCMenuSurfaceFactory = (el: Element, foundation?: MDCMenuSurfaceFoundation) => MDCMenuSurface;\n\nexport class MDCMenuSurface extends MDCComponent<MDCMenuSurfaceFoundation> {\n  static attachTo(root: Element): MDCMenuSurface {\n    return new MDCMenuSurface(root);\n  }\n\n  anchorElement!: Element | null; // assigned in initialSyncWithDOM()\n\n  protected root_!: HTMLElement; // assigned in MDCComponent constructor\n\n  private previousFocus_?: HTMLElement | SVGElement | null;\n\n  private handleKeydown_!: SpecificEventListener<'keydown'>; // assigned in initialSyncWithDOM()\n  private handleBodyClick_!: SpecificEventListener<'click'>; // assigned in initialSyncWithDOM()\n\n  private registerBodyClickListener_!: RegisterFunction; // assigned in initialSyncWithDOM()\n  private deregisterBodyClickListener_!: RegisterFunction; // assigned in initialSyncWithDOM()\n\n  initialSyncWithDOM() {\n    const parentEl = this.root_.parentElement;\n    this.anchorElement = parentEl && parentEl.classList.contains(cssClasses.ANCHOR) ? parentEl : null;\n\n    if (this.root_.classList.contains(cssClasses.FIXED)) {\n      this.setFixedPosition(true);\n    }\n\n    this.handleKeydown_ = (evt) => this.foundation_.handleKeydown(evt);\n    this.handleBodyClick_ = (evt) => this.foundation_.handleBodyClick(evt);\n\n    this.registerBodyClickListener_ = () => document.body.addEventListener('click', this.handleBodyClick_);\n    this.deregisterBodyClickListener_ = () => document.body.removeEventListener('click', this.handleBodyClick_);\n\n    this.listen('keydown', this.handleKeydown_);\n    this.listen(strings.OPENED_EVENT, this.registerBodyClickListener_);\n    this.listen(strings.CLOSED_EVENT, this.deregisterBodyClickListener_);\n  }\n\n  destroy() {\n    this.unlisten('keydown', this.handleKeydown_);\n    this.unlisten(strings.OPENED_EVENT, this.registerBodyClickListener_);\n    this.unlisten(strings.CLOSED_EVENT, this.deregisterBodyClickListener_);\n    super.destroy();\n  }\n\n  isOpen(): boolean {\n    return this.foundation_.isOpen();\n  }\n\n  open() {\n    this.foundation_.open();\n  }\n\n  close(skipRestoreFocus = false) {\n    this.foundation_.close(skipRestoreFocus);\n  }\n\n  set quickOpen(quickOpen: boolean) {\n    this.foundation_.setQuickOpen(quickOpen);\n  }\n\n  /** Sets the foundation to use page offsets for an positioning when the menu is hoisted to the body. */\n  setIsHoisted(isHoisted: boolean) {\n    this.foundation_.setIsHoisted(isHoisted);\n  }\n\n  /** Sets the element that the menu-surface is anchored to. */\n  setMenuSurfaceAnchorElement(element: Element) {\n    this.anchorElement = element;\n  }\n\n  /** Sets the menu-surface to position: fixed. */\n  setFixedPosition(isFixed: boolean) {\n    if (isFixed) {\n      this.root_.classList.add(cssClasses.FIXED);\n    } else {\n      this.root_.classList.remove(cssClasses.FIXED);\n    }\n\n    this.foundation_.setFixedPosition(isFixed);\n  }\n\n  /** Sets the absolute x/y position to position based on. Requires the menu to be hoisted. */\n  setAbsolutePosition(x: number, y: number) {\n    this.foundation_.setAbsolutePosition(x, y);\n    this.setIsHoisted(true);\n  }\n\n  /**\n   * @param corner Default anchor corner alignment of top-left surface corner.\n   */\n  setAnchorCorner(corner: Corner) {\n    this.foundation_.setAnchorCorner(corner);\n  }\n\n  setAnchorMargin(margin: Partial<MDCMenuDistance>) {\n    this.foundation_.setAnchorMargin(margin);\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    const adapter: MDCMenuSurfaceAdapter = {\n      addClass: (className) => this.root_.classList.add(className),\n      removeClass: (className) => this.root_.classList.remove(className),\n      hasClass: (className) => this.root_.classList.contains(className),\n      hasAnchor: () => !!this.anchorElement,\n      notifyClose: () => this.emit(MDCMenuSurfaceFoundation.strings.CLOSED_EVENT, {}),\n      notifyOpen: () => this.emit(MDCMenuSurfaceFoundation.strings.OPENED_EVENT, {}),\n      isElementInContainer: (el) => this.root_.contains(el),\n      isRtl: () => getComputedStyle(this.root_).getPropertyValue('direction') === 'rtl',\n      setTransformOrigin: (origin) => {\n        const propertyName = `${util.getTransformPropertyName(window)}-origin`;\n        this.root_.style.setProperty(propertyName, origin);\n      },\n\n      isFocused: () => document.activeElement === this.root_,\n      saveFocus: () => {\n        this.previousFocus_ = document.activeElement as HTMLElement | SVGElement | null;\n      },\n      restoreFocus: () => {\n        if (this.root_.contains(document.activeElement)) {\n          if (this.previousFocus_ && this.previousFocus_.focus) {\n            this.previousFocus_.focus();\n          }\n        }\n      },\n\n      getInnerDimensions: () => {\n        return {width: this.root_.offsetWidth, height: this.root_.offsetHeight};\n      },\n      getAnchorDimensions: () => this.anchorElement ? this.anchorElement.getBoundingClientRect() : null,\n      getWindowDimensions: () => {\n        return {width: window.innerWidth, height: window.innerHeight};\n      },\n      getBodyDimensions: () => {\n        return {width: document.body.clientWidth, height: document.body.clientHeight};\n      },\n      getWindowScroll: () => {\n        return {x: window.pageXOffset, y: window.pageYOffset};\n      },\n      setPosition: (position) => {\n        this.root_.style.left = 'left' in position ? `${position.left}px` : '';\n        this.root_.style.right = 'right' in position ? `${position.right}px` : '';\n        this.root_.style.top = 'top' in position ? `${position.top}px` : '';\n        this.root_.style.bottom = 'bottom' in position ? `${position.bottom}px` : '';\n      },\n      setMaxHeight: (height) => {\n        this.root_.style.maxHeight = height;\n      },\n    };\n    // tslint:enable:object-literal-sort-keys\n    return new MDCMenuSurfaceFoundation(adapter);\n  }\n}\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nconst cssClasses = {\n  ANCHOR: 'mdc-menu-surface--anchor',\n  ANIMATING_CLOSED: 'mdc-menu-surface--animating-closed',\n  ANIMATING_OPEN: 'mdc-menu-surface--animating-open',\n  FIXED: 'mdc-menu-surface--fixed',\n  OPEN: 'mdc-menu-surface--open',\n  ROOT: 'mdc-menu-surface',\n};\n\n// tslint:disable:object-literal-sort-keys\nconst strings = {\n  CLOSED_EVENT: 'MDCMenuSurface:closed',\n  OPENED_EVENT: 'MDCMenuSurface:opened',\n  FOCUSABLE_ELEMENTS: [\n    'button:not(:disabled)', '[href]:not([aria-disabled=\"true\"])', 'input:not(:disabled)',\n    'select:not(:disabled)', 'textarea:not(:disabled)', '[tabindex]:not([tabindex=\"-1\"]):not([aria-disabled=\"true\"])',\n  ].join(', '),\n};\n// tslint:enable:object-literal-sort-keys\n\nconst numbers = {\n  /** Total duration of menu-surface open animation. */\n  TRANSITION_OPEN_DURATION: 120,\n\n  /** Total duration of menu-surface close animation. */\n  TRANSITION_CLOSE_DURATION: 75,\n\n  /** Margin left to the edge of the viewport when menu-surface is at maximum possible height. */\n  MARGIN_TO_EDGE: 32,\n\n  /** Ratio of anchor width to menu-surface width for switching from corner positioning to center positioning. */\n  ANCHOR_TO_MENU_SURFACE_WIDTH_RATIO: 0.67,\n};\n\n/**\n * Enum for bits in the {@see Corner) bitmap.\n */\nenum CornerBit {\n  BOTTOM = 1,\n  CENTER = 2,\n  RIGHT = 4,\n  FLIP_RTL = 8,\n}\n\n/**\n * Enum for representing an element corner for positioning the menu-surface.\n *\n * The START constants map to LEFT if element directionality is left\n * to right and RIGHT if the directionality is right to left.\n * Likewise END maps to RIGHT or LEFT depending on the directionality.\n */\nenum Corner {\n  TOP_LEFT = 0,\n  TOP_RIGHT = CornerBit.RIGHT,\n  BOTTOM_LEFT = CornerBit.BOTTOM,\n  BOTTOM_RIGHT = CornerBit.BOTTOM | CornerBit.RIGHT, // tslint:disable-line:no-bitwise\n  TOP_START = CornerBit.FLIP_RTL,\n  TOP_END = CornerBit.FLIP_RTL | CornerBit.RIGHT, // tslint:disable-line:no-bitwise\n  BOTTOM_START = CornerBit.BOTTOM | CornerBit.FLIP_RTL, // tslint:disable-line:no-bitwise\n  BOTTOM_END = CornerBit.BOTTOM | CornerBit.RIGHT | CornerBit.FLIP_RTL, // tslint:disable-line:no-bitwise\n}\n\nexport {cssClasses, strings, numbers, CornerBit, Corner};\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {MDCMenuSurfaceAdapter} from './adapter';\nimport {Corner, CornerBit, cssClasses, numbers, strings} from './constants';\nimport {MDCMenuDimensions, MDCMenuDistance, MDCMenuPoint} from './types';\n\ninterface AutoLayoutMeasurements {\n  anchorSize: MDCMenuDimensions;\n  bodySize: MDCMenuDimensions;\n  surfaceSize: MDCMenuDimensions;\n  viewportDistance: MDCMenuDistance;\n  viewportSize: MDCMenuDimensions;\n  windowScroll: MDCMenuPoint;\n}\n\nexport class MDCMenuSurfaceFoundation extends MDCFoundation<MDCMenuSurfaceAdapter> {\n  static get cssClasses() {\n    return cssClasses;\n  }\n\n  static get strings() {\n    return strings;\n  }\n\n  static get numbers() {\n    return numbers;\n  }\n\n  static get Corner() {\n    return Corner;\n  }\n\n  /**\n   * @see {@link MDCMenuSurfaceAdapter} for typing information on parameters and return types.\n   */\n  static get defaultAdapter(): MDCMenuSurfaceAdapter {\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    return {\n      addClass: () => undefined,\n      removeClass: () => undefined,\n      hasClass: () => false,\n      hasAnchor: () => false,\n\n      isElementInContainer: () => false,\n      isFocused: () => false,\n      isRtl: () => false,\n\n      getInnerDimensions: () => ({height: 0, width: 0}),\n      getAnchorDimensions: () => null,\n      getWindowDimensions: () => ({height: 0, width: 0}),\n      getBodyDimensions: () => ({height: 0, width: 0}),\n      getWindowScroll: () => ({x: 0, y: 0}),\n      setPosition: () => undefined,\n      setMaxHeight: () => undefined,\n      setTransformOrigin: () => undefined,\n\n      saveFocus: () => undefined,\n      restoreFocus: () => undefined,\n\n      notifyClose: () => undefined,\n      notifyOpen: () => undefined,\n    };\n    // tslint:enable:object-literal-sort-keys\n  }\n\n  private isOpen_ = false;\n  private isQuickOpen_ = false;\n  private isHoistedElement_ = false;\n  private isFixedPosition_ = false;\n\n  private openAnimationEndTimerId_ = 0;\n  private closeAnimationEndTimerId_ = 0;\n  private animationRequestId_ = 0;\n\n  private anchorCorner_: Corner = Corner.TOP_START;\n  private anchorMargin_: MDCMenuDistance = {top: 0, right: 0, bottom: 0, left: 0};\n  private position_: MDCMenuPoint = {x: 0, y: 0};\n\n  private dimensions_!: MDCMenuDimensions; // assigned in open()\n  private measurements_!: AutoLayoutMeasurements; // assigned in open()\n\n  constructor(adapter?: Partial<MDCMenuSurfaceAdapter>) {\n    super({...MDCMenuSurfaceFoundation.defaultAdapter, ...adapter});\n  }\n\n  init() {\n    const {ROOT, OPEN} = MDCMenuSurfaceFoundation.cssClasses;\n\n    if (!this.adapter_.hasClass(ROOT)) {\n      throw new Error(`${ROOT} class required in root element.`);\n    }\n\n    if (this.adapter_.hasClass(OPEN)) {\n      this.isOpen_ = true;\n    }\n  }\n\n  destroy() {\n    clearTimeout(this.openAnimationEndTimerId_);\n    clearTimeout(this.closeAnimationEndTimerId_);\n    // Cancel any currently running animations.\n    cancelAnimationFrame(this.animationRequestId_);\n  }\n\n  /**\n   * @param corner Default anchor corner alignment of top-left menu surface corner.\n   */\n  setAnchorCorner(corner: Corner) {\n    this.anchorCorner_ = corner;\n  }\n\n  /**\n   * @param margin Set of margin values from anchor.\n   */\n  setAnchorMargin(margin: Partial<MDCMenuDistance>) {\n    this.anchorMargin_.top = margin.top || 0;\n    this.anchorMargin_.right = margin.right || 0;\n    this.anchorMargin_.bottom = margin.bottom || 0;\n    this.anchorMargin_.left = margin.left || 0;\n  }\n\n  /** Used to indicate if the menu-surface is hoisted to the body. */\n  setIsHoisted(isHoisted: boolean) {\n    this.isHoistedElement_ = isHoisted;\n  }\n\n  /** Used to set the menu-surface calculations based on a fixed position menu. */\n  setFixedPosition(isFixedPosition: boolean) {\n    this.isFixedPosition_ = isFixedPosition;\n  }\n\n  /** Sets the menu-surface position on the page. */\n  setAbsolutePosition(x: number, y: number) {\n    this.position_.x = this.isFinite_(x) ? x : 0;\n    this.position_.y = this.isFinite_(y) ? y : 0;\n  }\n\n  setQuickOpen(quickOpen: boolean) {\n    this.isQuickOpen_ = quickOpen;\n  }\n\n  isOpen() {\n    return this.isOpen_;\n  }\n\n  /**\n   * Open the menu surface.\n   */\n  open() {\n    this.adapter_.saveFocus();\n\n    if (!this.isQuickOpen_) {\n      this.adapter_.addClass(MDCMenuSurfaceFoundation.cssClasses.ANIMATING_OPEN);\n    }\n\n    this.animationRequestId_ = requestAnimationFrame(() => {\n      this.adapter_.addClass(MDCMenuSurfaceFoundation.cssClasses.OPEN);\n      this.dimensions_ = this.adapter_.getInnerDimensions();\n      this.autoPosition_();\n      if (this.isQuickOpen_) {\n        this.adapter_.notifyOpen();\n      } else {\n        this.openAnimationEndTimerId_ = setTimeout(() => {\n          this.openAnimationEndTimerId_ = 0;\n          this.adapter_.removeClass(MDCMenuSurfaceFoundation.cssClasses.ANIMATING_OPEN);\n          this.adapter_.notifyOpen();\n        }, numbers.TRANSITION_OPEN_DURATION);\n      }\n    });\n\n    this.isOpen_ = true;\n  }\n\n  /**\n   * Closes the menu surface.\n   */\n  close(skipRestoreFocus = false) {\n    if (!this.isQuickOpen_) {\n      this.adapter_.addClass(MDCMenuSurfaceFoundation.cssClasses.ANIMATING_CLOSED);\n    }\n\n    requestAnimationFrame(() => {\n      this.adapter_.removeClass(MDCMenuSurfaceFoundation.cssClasses.OPEN);\n      if (this.isQuickOpen_) {\n        this.adapter_.notifyClose();\n      } else {\n        this.closeAnimationEndTimerId_ = setTimeout(() => {\n          this.closeAnimationEndTimerId_ = 0;\n          this.adapter_.removeClass(MDCMenuSurfaceFoundation.cssClasses.ANIMATING_CLOSED);\n          this.adapter_.notifyClose();\n        }, numbers.TRANSITION_CLOSE_DURATION);\n      }\n    });\n\n    this.isOpen_ = false;\n    if (!skipRestoreFocus) {\n      this.maybeRestoreFocus_();\n    }\n  }\n\n  /** Handle clicks and close if not within menu-surface element. */\n  handleBodyClick(evt: MouseEvent) {\n    const el = evt.target as Element;\n    if (this.adapter_.isElementInContainer(el)) {\n      return;\n    }\n    this.close();\n  }\n\n  /** Handle keys that close the surface. */\n  handleKeydown(evt: KeyboardEvent) {\n    const {keyCode, key} = evt;\n\n    const isEscape = key === 'Escape' || keyCode === 27;\n    if (isEscape) {\n      this.close();\n    }\n  }\n\n  private autoPosition_() {\n    // Compute measurements for autoposition methods reuse.\n    this.measurements_ = this.getAutoLayoutMeasurements_();\n\n    const corner = this.getOriginCorner_();\n    const maxMenuSurfaceHeight = this.getMenuSurfaceMaxHeight_(corner);\n    const verticalAlignment = this.hasBit_(corner, CornerBit.BOTTOM) ? 'bottom' : 'top';\n    let horizontalAlignment = this.hasBit_(corner, CornerBit.RIGHT) ? 'right' : 'left';\n    const horizontalOffset = this.getHorizontalOriginOffset_(corner);\n    const verticalOffset = this.getVerticalOriginOffset_(corner);\n    const {anchorSize, surfaceSize} = this.measurements_;\n\n    const position: Partial<MDCMenuDistance> = {\n      [horizontalAlignment]: horizontalOffset,\n      [verticalAlignment]: verticalOffset,\n    };\n\n    // Center align when anchor width is comparable or greater than menu surface, otherwise keep corner.\n    if (anchorSize.width / surfaceSize.width > numbers.ANCHOR_TO_MENU_SURFACE_WIDTH_RATIO) {\n      horizontalAlignment = 'center';\n    }\n\n    // If the menu-surface has been hoisted to the body, it's no longer relative to the anchor element\n    if (this.isHoistedElement_ || this.isFixedPosition_) {\n      this.adjustPositionForHoistedElement_(position);\n    }\n\n    this.adapter_.setTransformOrigin(`${horizontalAlignment} ${verticalAlignment}`);\n    this.adapter_.setPosition(position);\n    this.adapter_.setMaxHeight(maxMenuSurfaceHeight ? maxMenuSurfaceHeight + 'px' : '');\n  }\n\n  /**\n   * @return Measurements used to position menu surface popup.\n   */\n  private getAutoLayoutMeasurements_(): AutoLayoutMeasurements {\n    let anchorRect = this.adapter_.getAnchorDimensions();\n    const bodySize = this.adapter_.getBodyDimensions();\n    const viewportSize = this.adapter_.getWindowDimensions();\n    const windowScroll = this.adapter_.getWindowScroll();\n\n    if (!anchorRect) {\n      // tslint:disable:object-literal-sort-keys Positional properties are more readable when they're grouped together\n      anchorRect = {\n        top: this.position_.y,\n        right: this.position_.x,\n        bottom: this.position_.y,\n        left: this.position_.x,\n        width: 0,\n        height: 0,\n      };\n      // tslint:enable:object-literal-sort-keys\n    }\n\n    return {\n      anchorSize: anchorRect,\n      bodySize,\n      surfaceSize: this.dimensions_,\n      viewportDistance: {\n        // tslint:disable:object-literal-sort-keys Positional properties are more readable when they're grouped together\n        top: anchorRect.top,\n        right: viewportSize.width - anchorRect.right,\n        bottom: viewportSize.height - anchorRect.bottom,\n        left: anchorRect.left,\n        // tslint:enable:object-literal-sort-keys\n      },\n      viewportSize,\n      windowScroll,\n    };\n  }\n\n  /**\n   * Computes the corner of the anchor from which to animate and position the menu surface.\n   */\n  private getOriginCorner_(): Corner {\n    // Defaults: open from the top left.\n    let corner = Corner.TOP_LEFT;\n\n    const {viewportDistance, anchorSize, surfaceSize} = this.measurements_;\n\n    const isBottomAligned = this.hasBit_(this.anchorCorner_, CornerBit.BOTTOM);\n    const availableTop = isBottomAligned ? viewportDistance.top + anchorSize.height + this.anchorMargin_.bottom\n        : viewportDistance.top + this.anchorMargin_.top;\n    const availableBottom = isBottomAligned ? viewportDistance.bottom - this.anchorMargin_.bottom\n        : viewportDistance.bottom + anchorSize.height - this.anchorMargin_.top;\n\n    const topOverflow = surfaceSize.height - availableTop;\n    const bottomOverflow = surfaceSize.height - availableBottom;\n    if (bottomOverflow > 0 && topOverflow < bottomOverflow) {\n      corner = this.setBit_(corner, CornerBit.BOTTOM);\n    }\n\n    const isRtl = this.adapter_.isRtl();\n    const isFlipRtl = this.hasBit_(this.anchorCorner_, CornerBit.FLIP_RTL);\n    const avoidHorizontalOverlap = this.hasBit_(this.anchorCorner_, CornerBit.RIGHT);\n    const isAlignedRight = (avoidHorizontalOverlap && !isRtl) ||\n        (!avoidHorizontalOverlap && isFlipRtl && isRtl);\n    const availableLeft = isAlignedRight ? viewportDistance.left + anchorSize.width + this.anchorMargin_.right :\n        viewportDistance.left + this.anchorMargin_.left;\n    const availableRight = isAlignedRight ? viewportDistance.right - this.anchorMargin_.right :\n        viewportDistance.right + anchorSize.width - this.anchorMargin_.left;\n\n    const leftOverflow = surfaceSize.width - availableLeft;\n    const rightOverflow = surfaceSize.width - availableRight;\n\n    if ((leftOverflow < 0 && isAlignedRight && isRtl) ||\n        (avoidHorizontalOverlap && !isAlignedRight && leftOverflow < 0) ||\n        (rightOverflow > 0 && leftOverflow < rightOverflow)) {\n      corner = this.setBit_(corner, CornerBit.RIGHT);\n    }\n\n    return corner;\n  }\n\n  /**\n   * @param corner Origin corner of the menu surface.\n   * @return Maximum height of the menu surface, based on available space. 0 indicates should not be set.\n   */\n  private getMenuSurfaceMaxHeight_(corner: Corner): number {\n    const {viewportDistance} = this.measurements_;\n\n    let maxHeight = 0;\n    const isBottomAligned = this.hasBit_(corner, CornerBit.BOTTOM);\n    const isBottomAnchored = this.hasBit_(this.anchorCorner_, CornerBit.BOTTOM);\n    const {MARGIN_TO_EDGE} = MDCMenuSurfaceFoundation.numbers;\n\n    // When maximum height is not specified, it is handled from CSS.\n    if (isBottomAligned) {\n      maxHeight = viewportDistance.top + this.anchorMargin_.top - MARGIN_TO_EDGE;\n      if (!isBottomAnchored) {\n        maxHeight += this.measurements_.anchorSize.height;\n      }\n    } else {\n      maxHeight =\n          viewportDistance.bottom - this.anchorMargin_.bottom + this.measurements_.anchorSize.height - MARGIN_TO_EDGE;\n      if (isBottomAnchored) {\n        maxHeight -= this.measurements_.anchorSize.height;\n      }\n    }\n\n    return maxHeight;\n  }\n\n  /**\n   * @param corner Origin corner of the menu surface.\n   * @return Horizontal offset of menu surface origin corner from corresponding anchor corner.\n   */\n  private getHorizontalOriginOffset_(corner: Corner): number {\n    const {anchorSize} = this.measurements_;\n\n    // isRightAligned corresponds to using the 'right' property on the surface.\n    const isRightAligned = this.hasBit_(corner, CornerBit.RIGHT);\n    const avoidHorizontalOverlap = this.hasBit_(this.anchorCorner_, CornerBit.RIGHT);\n\n    if (isRightAligned) {\n      const rightOffset =\n          avoidHorizontalOverlap ? anchorSize.width - this.anchorMargin_.left : this.anchorMargin_.right;\n\n      // For hoisted or fixed elements, adjust the offset by the difference between viewport width and body width so\n      // when we calculate the right value (`adjustPositionForHoistedElement_`) based on the element position,\n      // the right property is correct.\n      if (this.isHoistedElement_ || this.isFixedPosition_) {\n        return rightOffset - (this.measurements_.viewportSize.width - this.measurements_.bodySize.width);\n      }\n\n      return rightOffset;\n    }\n\n    return avoidHorizontalOverlap ? anchorSize.width - this.anchorMargin_.right : this.anchorMargin_.left;\n  }\n\n  /**\n   * @param corner Origin corner of the menu surface.\n   * @return Vertical offset of menu surface origin corner from corresponding anchor corner.\n   */\n  private getVerticalOriginOffset_(corner: Corner): number {\n    const {anchorSize} = this.measurements_;\n    const isBottomAligned = this.hasBit_(corner, CornerBit.BOTTOM);\n    const avoidVerticalOverlap = this.hasBit_(this.anchorCorner_, CornerBit.BOTTOM);\n\n    let y = 0;\n    if (isBottomAligned) {\n      y = avoidVerticalOverlap ? anchorSize.height - this.anchorMargin_.top : -this.anchorMargin_.bottom;\n    } else {\n      y = avoidVerticalOverlap ? (anchorSize.height + this.anchorMargin_.bottom) : this.anchorMargin_.top;\n    }\n    return y;\n  }\n\n  /** Calculates the offsets for positioning the menu-surface when the menu-surface has been hoisted to the body. */\n  private adjustPositionForHoistedElement_(position: Partial<MDCMenuDistance>) {\n    const {windowScroll, viewportDistance} = this.measurements_;\n\n    const props = Object.keys(position) as Array<keyof Partial<MDCMenuDistance>>;\n\n    for (const prop of props) {\n      let value = position[prop] || 0;\n\n      // Hoisted surfaces need to have the anchor elements location on the page added to the\n      // position properties for proper alignment on the body.\n      value += viewportDistance[prop];\n\n      // Surfaces that are absolutely positioned need to have additional calculations for scroll\n      // and bottom positioning.\n      if (!this.isFixedPosition_) {\n        if (prop === 'top') {\n          value += windowScroll.y;\n        } else if (prop === 'bottom') {\n          value -= windowScroll.y;\n        } else if (prop === 'left') {\n          value += windowScroll.x;\n        } else { // prop === 'right'\n          value -= windowScroll.x;\n        }\n      }\n\n      position[prop] = value;\n    }\n  }\n\n  /**\n   * The last focused element when the menu surface was opened should regain focus, if the user is\n   * focused on or within the menu surface when it is closed.\n   */\n  private maybeRestoreFocus_() {\n    const isRootFocused = this.adapter_.isFocused();\n    const childHasFocus = document.activeElement && this.adapter_.isElementInContainer(document.activeElement);\n    if (isRootFocused || childHasFocus) {\n      this.adapter_.restoreFocus();\n    }\n  }\n\n  private hasBit_(corner: Corner, bit: CornerBit): boolean {\n    return Boolean(corner & bit); // tslint:disable-line:no-bitwise\n  }\n\n  private setBit_(corner: Corner, bit: CornerBit): Corner {\n    return corner | bit; // tslint:disable-line:no-bitwise\n  }\n\n  /**\n   * isFinite that doesn't force conversion to number type.\n   * Equivalent to Number.isFinite in ES2015, which is not supported in IE.\n   */\n  private isFinite_(num: number): boolean {\n    return typeof num === 'number' && isFinite(num);\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCMenuSurfaceFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport * as util from './util';\n\nexport {util};\nexport * from './adapter';\nexport * from './component';\nexport * from './constants';\nexport * from './foundation';\nexport * from './types';\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\ntype CssTransformPropertyName = ('transform' | 'webkitTransform');\n\nlet cachedCssTransformPropertyName_: CssTransformPropertyName | undefined;\n\n/**\n * Returns the name of the correct transform property to use on the current browser.\n */\nfunction getTransformPropertyName(globalObj: Window, forceRefresh = false): CssTransformPropertyName {\n  if (cachedCssTransformPropertyName_ === undefined || forceRefresh) {\n    const el = globalObj.document.createElement('div');\n    cachedCssTransformPropertyName_ = 'transform' in el.style ? 'transform' : 'webkitTransform';\n  }\n  return cachedCssTransformPropertyName_;\n}\n\nexport {getTransformPropertyName};\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {CustomEventListener, SpecificEventListener} from '@material/base/types';\nimport {closest} from '@material/dom/ponyfill';\nimport {MDCList, MDCListFactory} from '@material/list/component';\nimport {MDCListFoundation} from '@material/list/foundation';\nimport {MDCListActionEvent} from '@material/list/types';\nimport {MDCMenuSurface, MDCMenuSurfaceFactory} from '@material/menu-surface/component';\nimport {Corner} from '@material/menu-surface/constants';\nimport {MDCMenuSurfaceFoundation} from '@material/menu-surface/foundation';\nimport {MDCMenuDistance} from '@material/menu-surface/types';\nimport {MDCMenuAdapter} from './adapter';\nimport {cssClasses, DefaultFocusState, strings} from './constants';\nimport {MDCMenuFoundation} from './foundation';\nimport {MDCMenuItemComponentEventDetail} from './types';\n\nexport type MDCMenuFactory = (el: Element, foundation?: MDCMenuFoundation) => MDCMenu;\n\nexport class MDCMenu extends MDCComponent<MDCMenuFoundation> {\n  static attachTo(root: Element) {\n    return new MDCMenu(root);\n  }\n\n  private menuSurfaceFactory_!: MDCMenuSurfaceFactory; // assigned in initialize()\n  private listFactory_!: MDCListFactory; // assigned in initialize()\n\n  private menuSurface_!: MDCMenuSurface; // assigned in initialSyncWithDOM()\n  private list_!: MDCList | null; // assigned in initialSyncWithDOM()\n\n  private handleKeydown_!: SpecificEventListener<'keydown'>; // assigned in initialSyncWithDOM()\n  private handleItemAction_!: CustomEventListener<MDCListActionEvent>; // assigned in initialSyncWithDOM()\n  private handleMenuSurfaceOpened_!: EventListener; // assigned in initialSyncWithDOM()\n\n  initialize(\n      menuSurfaceFactory: MDCMenuSurfaceFactory = (el) => new MDCMenuSurface(el),\n      listFactory: MDCListFactory = (el) => new MDCList(el)) {\n    this.menuSurfaceFactory_ = menuSurfaceFactory;\n    this.listFactory_ = listFactory;\n  }\n\n  initialSyncWithDOM() {\n    this.menuSurface_ = this.menuSurfaceFactory_(this.root_);\n\n    const list = this.root_.querySelector(strings.LIST_SELECTOR);\n    if (list) {\n      this.list_ = this.listFactory_(list);\n      this.list_.wrapFocus = true;\n    } else {\n      this.list_ = null;\n    }\n\n    this.handleKeydown_ = (evt) => this.foundation_.handleKeydown(evt);\n    this.handleItemAction_ = (evt) => this.foundation_.handleItemAction(this.items[evt.detail.index]);\n    this.handleMenuSurfaceOpened_ = () => this.foundation_.handleMenuSurfaceOpened();\n\n    this.menuSurface_.listen(MDCMenuSurfaceFoundation.strings.OPENED_EVENT, this.handleMenuSurfaceOpened_);\n    this.listen('keydown', this.handleKeydown_);\n    this.listen(MDCListFoundation.strings.ACTION_EVENT, this.handleItemAction_);\n  }\n\n  destroy() {\n    if (this.list_) {\n      this.list_.destroy();\n    }\n\n    this.menuSurface_.destroy();\n    this.menuSurface_.unlisten(MDCMenuSurfaceFoundation.strings.OPENED_EVENT, this.handleMenuSurfaceOpened_);\n    this.unlisten('keydown', this.handleKeydown_);\n    this.unlisten(MDCListFoundation.strings.ACTION_EVENT, this.handleItemAction_);\n    super.destroy();\n  }\n\n  get open(): boolean {\n    return this.menuSurface_.isOpen();\n  }\n\n  set open(value: boolean) {\n    if (value) {\n      this.menuSurface_.open();\n    } else {\n      this.menuSurface_.close();\n    }\n  }\n\n  get wrapFocus(): boolean {\n    return this.list_ ? this.list_.wrapFocus : false;\n  }\n\n  set wrapFocus(value: boolean) {\n    if (this.list_) {\n      this.list_.wrapFocus = value;\n    }\n  }\n\n  /**\n   * Return the items within the menu. Note that this only contains the set of elements within\n   * the items container that are proper list items, and not supplemental / presentational DOM\n   * elements.\n   */\n  get items(): Element[] {\n    return this.list_ ? this.list_.listElements : [];\n  }\n\n  set quickOpen(quickOpen: boolean) {\n    this.menuSurface_.quickOpen = quickOpen;\n  }\n\n  /**\n   * Sets default focus state where the menu should focus every time when menu\n   * is opened. Focuses the list root (`DefaultFocusState.LIST_ROOT`) element by\n   * default.\n   * @param focusState Default focus state.\n   */\n  setDefaultFocusState(focusState: DefaultFocusState) {\n    this.foundation_.setDefaultFocusState(focusState);\n  }\n\n  /**\n   * @param corner Default anchor corner alignment of top-left menu corner.\n   */\n  setAnchorCorner(corner: Corner) {\n    this.menuSurface_.setAnchorCorner(corner);\n  }\n\n  setAnchorMargin(margin: Partial<MDCMenuDistance>) {\n    this.menuSurface_.setAnchorMargin(margin);\n  }\n\n  /**\n   * Sets the list item as the selected row at the specified index.\n   * @param index Index of list item within menu.\n   */\n  setSelectedIndex(index: number) {\n    this.foundation_.setSelectedIndex(index);\n  }\n\n  /**\n   * Sets the enabled state to isEnabled for the menu item at the given index.\n   * @param index Index of the menu item\n   * @param isEnabled The desired enabled state of the menu item.\n   */\n  setEnabled(index: number, isEnabled: boolean): void {\n    this.foundation_.setEnabled(index, isEnabled);\n  }\n\n  /**\n   * @return The item within the menu at the index specified.\n   */\n  getOptionByIndex(index: number): Element | null {\n    const items = this.items;\n\n    if (index < items.length) {\n      return this.items[index];\n    } else {\n      return null;\n    }\n  }\n\n  setFixedPosition(isFixed: boolean) {\n    this.menuSurface_.setFixedPosition(isFixed);\n  }\n\n  setIsHoisted(isHoisted: boolean) {\n    this.menuSurface_.setIsHoisted(isHoisted);\n  }\n\n  setAbsolutePosition(x: number, y: number) {\n    this.menuSurface_.setAbsolutePosition(x, y);\n  }\n\n  /**\n   * Sets the element that the menu-surface is anchored to.\n   */\n  setAnchorElement(element: Element) {\n    this.menuSurface_.anchorElement = element;\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    const adapter: MDCMenuAdapter = {\n      addClassToElementAtIndex: (index, className) => {\n        const list = this.items;\n        list[index].classList.add(className);\n      },\n      removeClassFromElementAtIndex: (index, className) => {\n        const list = this.items;\n        list[index].classList.remove(className);\n      },\n      addAttributeToElementAtIndex: (index, attr, value) => {\n        const list = this.items;\n        list[index].setAttribute(attr, value);\n      },\n      removeAttributeFromElementAtIndex: (index, attr) => {\n        const list = this.items;\n        list[index].removeAttribute(attr);\n      },\n      elementContainsClass: (element, className) => element.classList.contains(className),\n      closeSurface: (skipRestoreFocus: boolean) => this.menuSurface_.close(skipRestoreFocus),\n      getElementIndex: (element) => this.items.indexOf(element),\n      notifySelected: (evtData) => this.emit<MDCMenuItemComponentEventDetail>(strings.SELECTED_EVENT, {\n        index: evtData.index,\n        item: this.items[evtData.index],\n      }),\n      getMenuItemCount: () => this.items.length,\n      focusItemAtIndex: (index) => (this.items[index] as HTMLElement).focus(),\n      focusListRoot: () => (this.root_.querySelector(strings.LIST_SELECTOR) as HTMLElement).focus(),\n      isSelectableItemAtIndex: (index) => !!closest(this.items[index], `.${cssClasses.MENU_SELECTION_GROUP}`),\n      getSelectedSiblingOfItemAtIndex: (index) => {\n        const selectionGroupEl = closest(this.items[index], `.${cssClasses.MENU_SELECTION_GROUP}`) as HTMLElement;\n        const selectedItemEl = selectionGroupEl.querySelector(`.${cssClasses.MENU_SELECTED_LIST_ITEM}`);\n        return selectedItemEl ? this.items.indexOf(selectedItemEl) : -1;\n      },\n    };\n    // tslint:enable:object-literal-sort-keys\n    return new MDCMenuFoundation(adapter);\n  }\n}\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nconst cssClasses = {\n  MENU_SELECTED_LIST_ITEM: 'mdc-menu-item--selected',\n  MENU_SELECTION_GROUP: 'mdc-menu__selection-group',\n  ROOT: 'mdc-menu',\n};\n\nconst strings = {\n  ARIA_CHECKED_ATTR: 'aria-checked',\n  ARIA_DISABLED_ATTR: 'aria-disabled',\n  CHECKBOX_SELECTOR: 'input[type=\"checkbox\"]',\n  LIST_SELECTOR: '.mdc-list',\n  SELECTED_EVENT: 'MDCMenu:selected',\n};\n\nconst numbers = {\n  FOCUS_ROOT_INDEX: -1,\n};\n\nenum DefaultFocusState {\n  NONE = 0,\n  LIST_ROOT = 1,\n  FIRST_ITEM = 2,\n  LAST_ITEM = 3,\n}\n\nexport {cssClasses, strings, numbers, DefaultFocusState};\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {cssClasses as listCssClasses} from '@material/list/constants';\nimport {MDCMenuSurfaceFoundation} from '@material/menu-surface/foundation';\nimport {MDCMenuAdapter} from './adapter';\nimport {cssClasses, DefaultFocusState, numbers, strings} from './constants';\n\nexport class MDCMenuFoundation extends MDCFoundation<MDCMenuAdapter> {\n  static get cssClasses() {\n    return cssClasses;\n  }\n\n  static get strings() {\n    return strings;\n  }\n\n  static get numbers() {\n    return numbers;\n  }\n\n  private closeAnimationEndTimerId_ = 0;\n  private defaultFocusState_ = DefaultFocusState.LIST_ROOT;\n\n  /**\n   * @see {@link MDCMenuAdapter} for typing information on parameters and return types.\n   */\n  static get defaultAdapter(): MDCMenuAdapter {\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    return {\n      addClassToElementAtIndex: () => undefined,\n      removeClassFromElementAtIndex: () => undefined,\n      addAttributeToElementAtIndex: () => undefined,\n      removeAttributeFromElementAtIndex: () => undefined,\n      elementContainsClass: () => false,\n      closeSurface: () => undefined,\n      getElementIndex: () => -1,\n      notifySelected: () => undefined,\n      getMenuItemCount: () => 0,\n      focusItemAtIndex: () => undefined,\n      focusListRoot: () => undefined,\n      getSelectedSiblingOfItemAtIndex: () => -1,\n      isSelectableItemAtIndex: () => false,\n    };\n    // tslint:enable:object-literal-sort-keys\n  }\n\n  constructor(adapter?: Partial<MDCMenuAdapter>) {\n    super({...MDCMenuFoundation.defaultAdapter, ...adapter});\n  }\n\n  destroy() {\n    if (this.closeAnimationEndTimerId_) {\n      clearTimeout(this.closeAnimationEndTimerId_);\n    }\n\n    this.adapter_.closeSurface();\n  }\n\n  handleKeydown(evt: KeyboardEvent) {\n    const {key, keyCode} = evt;\n    const isTab = key === 'Tab' || keyCode === 9;\n\n    if (isTab) {\n      this.adapter_.closeSurface(/** skipRestoreFocus */ true);\n    }\n  }\n\n  handleItemAction(listItem: Element) {\n    const index = this.adapter_.getElementIndex(listItem);\n    if (index < 0) {\n      return;\n    }\n\n    this.adapter_.notifySelected({index});\n    this.adapter_.closeSurface();\n\n    // Wait for the menu to close before adding/removing classes that affect styles.\n    this.closeAnimationEndTimerId_ = setTimeout(() => {\n      // Recompute the index in case the menu contents have changed.\n      const recomputedIndex = this.adapter_.getElementIndex(listItem);\n      if (this.adapter_.isSelectableItemAtIndex(recomputedIndex)) {\n        this.setSelectedIndex(recomputedIndex);\n      }\n    }, MDCMenuSurfaceFoundation.numbers.TRANSITION_CLOSE_DURATION);\n  }\n\n  handleMenuSurfaceOpened() {\n    switch (this.defaultFocusState_) {\n      case DefaultFocusState.FIRST_ITEM:\n        this.adapter_.focusItemAtIndex(0);\n        break;\n      case DefaultFocusState.LAST_ITEM:\n        this.adapter_.focusItemAtIndex(this.adapter_.getMenuItemCount() - 1);\n        break;\n      case DefaultFocusState.NONE:\n        // Do nothing.\n        break;\n      default:\n        this.adapter_.focusListRoot();\n        break;\n    }\n  }\n\n  /**\n   * Sets default focus state where the menu should focus every time when menu\n   * is opened. Focuses the list root (`DefaultFocusState.LIST_ROOT`) element by\n   * default.\n   */\n  setDefaultFocusState(focusState: DefaultFocusState) {\n    this.defaultFocusState_ = focusState;\n  }\n\n  /**\n   * Selects the list item at `index` within the menu.\n   * @param index Index of list item within the menu.\n   */\n  setSelectedIndex(index: number) {\n    this.validatedIndex_(index);\n\n    if (!this.adapter_.isSelectableItemAtIndex(index)) {\n      throw new Error('MDCMenuFoundation: No selection group at specified index.');\n    }\n\n    const prevSelectedIndex = this.adapter_.getSelectedSiblingOfItemAtIndex(index);\n    if (prevSelectedIndex >= 0) {\n      this.adapter_.removeAttributeFromElementAtIndex(prevSelectedIndex, strings.ARIA_CHECKED_ATTR);\n      this.adapter_.removeClassFromElementAtIndex(prevSelectedIndex, cssClasses.MENU_SELECTED_LIST_ITEM);\n    }\n\n    this.adapter_.addClassToElementAtIndex(index, cssClasses.MENU_SELECTED_LIST_ITEM);\n    this.adapter_.addAttributeToElementAtIndex(index, strings.ARIA_CHECKED_ATTR, 'true');\n  }\n\n  /**\n   * Sets the enabled state to isEnabled for the menu item at the given index.\n   * @param index Index of the menu item\n   * @param isEnabled The desired enabled state of the menu item.\n   */\n  setEnabled(index: number, isEnabled: boolean): void {\n    this.validatedIndex_(index);\n\n    if (isEnabled) {\n      this.adapter_.removeClassFromElementAtIndex(index, listCssClasses.LIST_ITEM_DISABLED_CLASS);\n      this.adapter_.addAttributeToElementAtIndex(index, strings.ARIA_DISABLED_ATTR, 'false');\n    } else {\n      this.adapter_.addClassToElementAtIndex(index, listCssClasses.LIST_ITEM_DISABLED_CLASS);\n      this.adapter_.addAttributeToElementAtIndex(index, strings.ARIA_DISABLED_ATTR, 'true');\n    }\n  }\n\n  private validatedIndex_(index: number): void {\n    const menuSize = this.adapter_.getMenuItemCount();\n    const isIndexInRange = index >= 0 && index < menuSize;\n\n    if (!isIndexInRange) {\n      throw new Error('MDCMenuFoundation: No list item at specified index.');\n    }\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCMenuFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport {Corner} from '@material/menu-surface/constants'; // for backward compatibility\nexport * from './adapter';\nexport * from './component';\nexport * from './constants';\nexport * from './foundation';\nexport * from './types';\n","/**\n * @license\n * Copyright 2017 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {MDCFloatingLabelFoundation} from '@material/floating-label/foundation';\nimport {MDCNotchedOutlineAdapter} from './adapter';\nimport {cssClasses, strings} from './constants';\nimport {MDCNotchedOutlineFoundation} from './foundation';\n\nexport type MDCNotchedOutlineFactory = (el: Element, foundation?: MDCNotchedOutlineFoundation) => MDCNotchedOutline;\n\nexport class MDCNotchedOutline extends MDCComponent<MDCNotchedOutlineFoundation> {\n  static attachTo(root: Element): MDCNotchedOutline {\n    return new MDCNotchedOutline(root);\n  }\n\n  private notchElement_!: HTMLElement; // assigned in initialSyncWithDOM()\n\n  initialSyncWithDOM() {\n    this.notchElement_ = this.root_.querySelector<HTMLElement>(strings.NOTCH_ELEMENT_SELECTOR)!;\n\n    const label = this.root_.querySelector<HTMLElement>('.' + MDCFloatingLabelFoundation.cssClasses.ROOT);\n    if (label) {\n      label.style.transitionDuration = '0s';\n      this.root_.classList.add(cssClasses.OUTLINE_UPGRADED);\n      requestAnimationFrame(() => {\n        label.style.transitionDuration = '';\n      });\n    } else {\n      this.root_.classList.add(cssClasses.NO_LABEL);\n    }\n  }\n\n  /**\n   * Updates classes and styles to open the notch to the specified width.\n   * @param notchWidth The notch width in the outline.\n   */\n  notch(notchWidth: number) {\n    this.foundation_.notch(notchWidth);\n  }\n\n  /**\n   * Updates classes and styles to close the notch.\n   */\n  closeNotch() {\n    this.foundation_.closeNotch();\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    const adapter: MDCNotchedOutlineAdapter = {\n      addClass: (className) => this.root_.classList.add(className),\n      removeClass: (className) => this.root_.classList.remove(className),\n      setNotchWidthProperty: (width) => this.notchElement_.style.setProperty('width', width + 'px'),\n      removeNotchWidthProperty: () => this.notchElement_.style.removeProperty('width'),\n    };\n    // tslint:enable:object-literal-sort-keys\n    return new MDCNotchedOutlineFoundation(adapter);\n  }\n}\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nconst strings = {\n  NOTCH_ELEMENT_SELECTOR: '.mdc-notched-outline__notch',\n};\n\nconst numbers = {\n  // This should stay in sync with $mdc-notched-outline-padding * 2.\n  NOTCH_ELEMENT_PADDING: 8,\n};\n\nconst cssClasses = {\n  NO_LABEL: 'mdc-notched-outline--no-label',\n  OUTLINE_NOTCHED: 'mdc-notched-outline--notched',\n  OUTLINE_UPGRADED: 'mdc-notched-outline--upgraded',\n};\n\nexport {cssClasses, numbers, strings};\n","/**\n * @license\n * Copyright 2017 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {MDCNotchedOutlineAdapter} from './adapter';\nimport {cssClasses, numbers, strings} from './constants';\n\nexport class MDCNotchedOutlineFoundation extends MDCFoundation<MDCNotchedOutlineAdapter> {\n  static get strings() {\n    return strings;\n  }\n\n  static get cssClasses() {\n    return cssClasses;\n  }\n\n  static get numbers() {\n    return numbers;\n  }\n\n  /**\n   * See {@link MDCNotchedOutlineAdapter} for typing information on parameters and return types.\n   */\n  static get defaultAdapter(): MDCNotchedOutlineAdapter {\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    return {\n      addClass: () => undefined,\n      removeClass: () => undefined,\n      setNotchWidthProperty: () => undefined,\n      removeNotchWidthProperty: () => undefined,\n    };\n    // tslint:enable:object-literal-sort-keys\n  }\n\n  constructor(adapter?: Partial<MDCNotchedOutlineAdapter>) {\n    super({...MDCNotchedOutlineFoundation.defaultAdapter, ...adapter});\n  }\n\n  /**\n   * Adds the outline notched selector and updates the notch width calculated based off of notchWidth.\n   */\n  notch(notchWidth: number) {\n    const {OUTLINE_NOTCHED} = MDCNotchedOutlineFoundation.cssClasses;\n\n    if (notchWidth > 0) {\n      notchWidth += numbers.NOTCH_ELEMENT_PADDING; // Add padding from left/right.\n    }\n\n    this.adapter_.setNotchWidthProperty(notchWidth);\n    this.adapter_.addClass(OUTLINE_NOTCHED);\n  }\n\n  /**\n   * Removes notched outline selector to close the notch in the outline.\n   */\n  closeNotch() {\n    const {OUTLINE_NOTCHED} = MDCNotchedOutlineFoundation.cssClasses;\n    this.adapter_.removeClass(OUTLINE_NOTCHED);\n    this.adapter_.removeNotchWidthProperty();\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCNotchedOutlineFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport * from './adapter';\nexport * from './component';\nexport * from './constants';\nexport * from './foundation';\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {applyPassive} from '@material/dom/events';\nimport {MDCRippleAdapter} from '@material/ripple/adapter';\nimport {MDCRipple} from '@material/ripple/component';\nimport {MDCRippleFoundation} from '@material/ripple/foundation';\nimport {MDCRippleCapableSurface} from '@material/ripple/types';\nimport {MDCRadioAdapter} from './adapter';\nimport {MDCRadioFoundation} from './foundation';\n\nexport class MDCRadio extends MDCComponent<MDCRadioFoundation> implements MDCRippleCapableSurface {\n  static attachTo(root: Element) {\n    return new MDCRadio(root);\n  }\n\n  get checked(): boolean {\n    return this.nativeControl_.checked;\n  }\n\n  set checked(checked: boolean) {\n    this.nativeControl_.checked = checked;\n  }\n\n  get disabled() {\n    return this.nativeControl_.disabled;\n  }\n\n  set disabled(disabled: boolean) {\n    this.foundation_.setDisabled(disabled);\n  }\n\n  get value() {\n    return this.nativeControl_.value;\n  }\n\n  set value(value: string) {\n    this.nativeControl_.value = value;\n  }\n\n  get ripple(): MDCRipple {\n    return this.ripple_;\n  }\n\n  // Public visibility for this property is required by MDCRippleCapableSurface.\n  root_!: Element; // assigned in MDCComponent constructor\n\n  private readonly ripple_: MDCRipple = this.createRipple_();\n\n  destroy() {\n    this.ripple_.destroy();\n    super.destroy();\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    const adapter: MDCRadioAdapter = {\n      addClass: (className) => this.root_.classList.add(className),\n      removeClass: (className) => this.root_.classList.remove(className),\n      setNativeControlDisabled: (disabled) => this.nativeControl_.disabled = disabled,\n    };\n    return new MDCRadioFoundation(adapter);\n  }\n\n  private createRipple_(): MDCRipple {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    const adapter: MDCRippleAdapter = {\n      ...MDCRipple.createAdapter(this),\n      registerInteractionHandler: (evtType, handler) => this.nativeControl_.addEventListener(\n        evtType, handler, applyPassive()),\n      deregisterInteractionHandler: (evtType, handler) => this.nativeControl_.removeEventListener(\n        evtType, handler, applyPassive()),\n      // Radio buttons technically go \"active\" whenever there is *any* keyboard interaction.\n      // This is not the UI we desire.\n      isSurfaceActive: () => false,\n      isUnbounded: () => true,\n    };\n    // tslint:enable:object-literal-sort-keys\n    return new MDCRipple(this.root_, new MDCRippleFoundation(adapter));\n  }\n\n  private get nativeControl_(): HTMLInputElement {\n    const {NATIVE_CONTROL_SELECTOR} = MDCRadioFoundation.strings;\n    const el = this.root_.querySelector<HTMLInputElement>(NATIVE_CONTROL_SELECTOR);\n    if (!el) {\n      throw new Error(`Radio component requires a ${NATIVE_CONTROL_SELECTOR} element`);\n    }\n    return el;\n  }\n}\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nconst strings = {\n  NATIVE_CONTROL_SELECTOR: '.mdc-radio__native-control',\n};\n\nconst cssClasses = {\n  DISABLED: 'mdc-radio--disabled',\n  ROOT: 'mdc-radio',\n};\n\nexport {strings, cssClasses};\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {MDCRadioAdapter} from './adapter';\nimport {cssClasses, strings} from './constants';\n\nexport class MDCRadioFoundation extends MDCFoundation<MDCRadioAdapter> {\n  static get cssClasses() {\n    return cssClasses;\n  }\n\n  static get strings() {\n    return strings;\n  }\n\n  static get defaultAdapter(): MDCRadioAdapter {\n    return {\n      addClass: () => undefined,\n      removeClass: () => undefined,\n      setNativeControlDisabled: () => undefined,\n    };\n  }\n\n  constructor(adapter?: Partial<MDCRadioAdapter>) {\n    super({...MDCRadioFoundation.defaultAdapter, ...adapter});\n  }\n\n  setDisabled(disabled: boolean) {\n    const {DISABLED} = MDCRadioFoundation.cssClasses;\n    this.adapter_.setNativeControlDisabled(disabled);\n    if (disabled) {\n      this.adapter_.addClass(DISABLED);\n    } else {\n      this.adapter_.removeClass(DISABLED);\n    }\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCRadioFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport * from './adapter';\nexport * from './component';\nexport * from './constants';\nexport * from './foundation';\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {applyPassive} from '@material/dom/events';\nimport {matches} from '@material/dom/ponyfill';\nimport {MDCRippleAdapter} from './adapter';\nimport {MDCRippleFoundation} from './foundation';\nimport {MDCRippleAttachOpts, MDCRippleCapableSurface} from './types';\nimport * as util from './util';\n\nexport type MDCRippleFactory = (el: Element, foundation?: MDCRippleFoundation) => MDCRipple;\n\nexport class MDCRipple extends MDCComponent<MDCRippleFoundation> implements MDCRippleCapableSurface {\n  static attachTo(root: Element, opts: MDCRippleAttachOpts = {isUnbounded: undefined}): MDCRipple {\n    const ripple = new MDCRipple(root);\n    // Only override unbounded behavior if option is explicitly specified\n    if (opts.isUnbounded !== undefined) {\n      ripple.unbounded = opts.isUnbounded;\n    }\n    return ripple;\n  }\n\n  static createAdapter(instance: MDCRippleCapableSurface): MDCRippleAdapter {\n    return {\n      addClass: (className) => instance.root_.classList.add(className),\n      browserSupportsCssVars: () => util.supportsCssVariables(window),\n      computeBoundingRect: () => instance.root_.getBoundingClientRect(),\n      containsEventTarget: (target) => instance.root_.contains(target as Node),\n      deregisterDocumentInteractionHandler: (evtType, handler) =>\n          document.documentElement.removeEventListener(evtType, handler, applyPassive()),\n      deregisterInteractionHandler: (evtType, handler) =>\n          (instance.root_ as HTMLElement).removeEventListener(evtType, handler, applyPassive()),\n      deregisterResizeHandler: (handler) => window.removeEventListener('resize', handler),\n      getWindowPageOffset: () => ({x: window.pageXOffset, y: window.pageYOffset}),\n      isSurfaceActive: () => matches(instance.root_, ':active'),\n      isSurfaceDisabled: () => Boolean(instance.disabled),\n      isUnbounded: () => Boolean(instance.unbounded),\n      registerDocumentInteractionHandler: (evtType, handler) =>\n          document.documentElement.addEventListener(evtType, handler, applyPassive()),\n      registerInteractionHandler: (evtType, handler) =>\n        (instance.root_ as HTMLElement).addEventListener(evtType, handler, applyPassive()),\n      registerResizeHandler: (handler) => window.addEventListener('resize', handler),\n      removeClass: (className) => instance.root_.classList.remove(className),\n      updateCssVariable: (varName, value) => (instance.root_ as HTMLElement).style.setProperty(varName, value),\n    };\n  }\n\n  // Public visibility for this property is required by MDCRippleCapableSurface.\n  root_!: Element; // assigned in MDCComponent constructor\n\n  disabled = false;\n\n  private unbounded_?: boolean;\n\n  get unbounded(): boolean {\n    return Boolean(this.unbounded_);\n  }\n\n  set unbounded(unbounded: boolean) {\n    this.unbounded_ = Boolean(unbounded);\n    this.setUnbounded_();\n  }\n\n  activate() {\n    this.foundation_.activate();\n  }\n\n  deactivate() {\n    this.foundation_.deactivate();\n  }\n\n  layout() {\n    this.foundation_.layout();\n  }\n\n  getDefaultFoundation() {\n    return new MDCRippleFoundation(MDCRipple.createAdapter(this));\n  }\n\n  initialSyncWithDOM() {\n    const root = this.root_ as HTMLElement;\n    this.unbounded = 'mdcRippleIsUnbounded' in root.dataset;\n  }\n\n  /**\n   * Closure Compiler throws an access control error when directly accessing a\n   * protected or private property inside a getter/setter, like unbounded above.\n   * By accessing the protected property inside a method, we solve that problem.\n   * That's why this function exists.\n   */\n  private setUnbounded_() {\n    this.foundation_.setUnbounded(Boolean(this.unbounded_));\n  }\n}\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport const cssClasses = {\n  // Ripple is a special case where the \"root\" component is really a \"mixin\" of sorts,\n  // given that it's an 'upgrade' to an existing component. That being said it is the root\n  // CSS class that all other CSS classes derive from.\n  BG_FOCUSED: 'mdc-ripple-upgraded--background-focused',\n  FG_ACTIVATION: 'mdc-ripple-upgraded--foreground-activation',\n  FG_DEACTIVATION: 'mdc-ripple-upgraded--foreground-deactivation',\n  ROOT: 'mdc-ripple-upgraded',\n  UNBOUNDED: 'mdc-ripple-upgraded--unbounded',\n};\n\nexport const strings = {\n  VAR_FG_SCALE: '--mdc-ripple-fg-scale',\n  VAR_FG_SIZE: '--mdc-ripple-fg-size',\n  VAR_FG_TRANSLATE_END: '--mdc-ripple-fg-translate-end',\n  VAR_FG_TRANSLATE_START: '--mdc-ripple-fg-translate-start',\n  VAR_LEFT: '--mdc-ripple-left',\n  VAR_TOP: '--mdc-ripple-top',\n};\n\nexport const numbers = {\n  DEACTIVATION_TIMEOUT_MS: 225, // Corresponds to $mdc-ripple-translate-duration (i.e. activation animation duration)\n  FG_DEACTIVATION_MS: 150, // Corresponds to $mdc-ripple-fade-out-duration (i.e. deactivation animation duration)\n  INITIAL_ORIGIN_SCALE: 0.6,\n  PADDING: 10,\n  TAP_DELAY_MS: 300, // Delay between touch and simulated mouse events on touch devices\n};\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {MDCRippleAdapter} from './adapter';\nimport {cssClasses, numbers, strings} from './constants';\nimport {MDCRipplePoint} from './types';\nimport {getNormalizedEventCoords} from './util';\n\ninterface ActivationStateType {\n  isActivated?: boolean;\n  hasDeactivationUXRun?: boolean;\n  wasActivatedByPointer?: boolean;\n  wasElementMadeActive?: boolean;\n  activationEvent?: Event;\n  isProgrammatic?: boolean;\n}\n\ninterface FgTranslationCoordinates {\n  startPoint: MDCRipplePoint;\n  endPoint: MDCRipplePoint;\n}\n\ninterface Coordinates {\n  left: number;\n  top: number;\n}\n\ntype ActivationEventType = 'touchstart' | 'pointerdown' | 'mousedown' | 'keydown';\ntype DeactivationEventType = 'touchend' | 'pointerup' | 'mouseup' | 'contextmenu';\n\n// Activation events registered on the root element of each instance for activation\nconst ACTIVATION_EVENT_TYPES: ActivationEventType[] = [\n  'touchstart', 'pointerdown', 'mousedown', 'keydown',\n];\n\n// Deactivation events registered on documentElement when a pointer-related down event occurs\nconst POINTER_DEACTIVATION_EVENT_TYPES: DeactivationEventType[] = [\n  'touchend', 'pointerup', 'mouseup', 'contextmenu',\n];\n\n// simultaneous nested activations\nlet activatedTargets: Array<EventTarget | null> = [];\n\nexport class MDCRippleFoundation extends MDCFoundation<MDCRippleAdapter> {\n  static get cssClasses() {\n    return cssClasses;\n  }\n\n  static get strings() {\n    return strings;\n  }\n\n  static get numbers() {\n    return numbers;\n  }\n\n  static get defaultAdapter(): MDCRippleAdapter {\n    return {\n      addClass: () => undefined,\n      browserSupportsCssVars: () => true,\n      computeBoundingRect: () => ({top: 0, right: 0, bottom: 0, left: 0, width: 0, height: 0}),\n      containsEventTarget: () => true,\n      deregisterDocumentInteractionHandler: () => undefined,\n      deregisterInteractionHandler: () => undefined,\n      deregisterResizeHandler: () => undefined,\n      getWindowPageOffset: () => ({x: 0, y: 0}),\n      isSurfaceActive: () => true,\n      isSurfaceDisabled: () => true,\n      isUnbounded: () => true,\n      registerDocumentInteractionHandler: () => undefined,\n      registerInteractionHandler: () => undefined,\n      registerResizeHandler: () => undefined,\n      removeClass: () => undefined,\n      updateCssVariable: () => undefined,\n    };\n  }\n\n  private activationAnimationHasEnded_ = false;\n  private activationState_: ActivationStateType;\n  private activationTimer_ = 0;\n  private fgDeactivationRemovalTimer_ = 0;\n  private fgScale_ = '0';\n  private frame_ = {width: 0, height: 0};\n  private initialSize_ = 0;\n  private layoutFrame_ = 0;\n  private maxRadius_ = 0;\n  private unboundedCoords_: Coordinates = {left: 0, top: 0};\n\n  private readonly activationTimerCallback_: () => void;\n  private readonly activateHandler_: EventHandlerNonNull;\n  private readonly deactivateHandler_: EventHandlerNonNull;\n  private readonly focusHandler_: EventHandlerNonNull;\n  private readonly blurHandler_: EventHandlerNonNull;\n  private readonly resizeHandler_: EventHandlerNonNull;\n\n  private previousActivationEvent_?: Event;\n\n  constructor(adapter?: Partial<MDCRippleAdapter>) {\n    super({...MDCRippleFoundation.defaultAdapter, ...adapter});\n\n    this.activationState_ = this.defaultActivationState_();\n\n    this.activationTimerCallback_ = () => {\n      this.activationAnimationHasEnded_ = true;\n      this.runDeactivationUXLogicIfReady_();\n    };\n    this.activateHandler_ = (e) => this.activate_(e);\n    this.deactivateHandler_ = () => this.deactivate_();\n    this.focusHandler_ = () => this.handleFocus();\n    this.blurHandler_ = () => this.handleBlur();\n    this.resizeHandler_ = () => this.layout();\n  }\n\n  init() {\n    const supportsPressRipple = this.supportsPressRipple_();\n\n    this.registerRootHandlers_(supportsPressRipple);\n\n    if (supportsPressRipple) {\n      const {ROOT, UNBOUNDED} = MDCRippleFoundation.cssClasses;\n      requestAnimationFrame(() => {\n        this.adapter_.addClass(ROOT);\n        if (this.adapter_.isUnbounded()) {\n          this.adapter_.addClass(UNBOUNDED);\n          // Unbounded ripples need layout logic applied immediately to set coordinates for both shade and ripple\n          this.layoutInternal_();\n        }\n      });\n    }\n  }\n\n  destroy() {\n    if (this.supportsPressRipple_()) {\n      if (this.activationTimer_) {\n        clearTimeout(this.activationTimer_);\n        this.activationTimer_ = 0;\n        this.adapter_.removeClass(MDCRippleFoundation.cssClasses.FG_ACTIVATION);\n      }\n\n      if (this.fgDeactivationRemovalTimer_) {\n        clearTimeout(this.fgDeactivationRemovalTimer_);\n        this.fgDeactivationRemovalTimer_ = 0;\n        this.adapter_.removeClass(MDCRippleFoundation.cssClasses.FG_DEACTIVATION);\n      }\n\n      const {ROOT, UNBOUNDED} = MDCRippleFoundation.cssClasses;\n      requestAnimationFrame(() => {\n        this.adapter_.removeClass(ROOT);\n        this.adapter_.removeClass(UNBOUNDED);\n        this.removeCssVars_();\n      });\n    }\n\n    this.deregisterRootHandlers_();\n    this.deregisterDeactivationHandlers_();\n  }\n\n  /**\n   * @param evt Optional event containing position information.\n   */\n  activate(evt?: Event): void {\n    this.activate_(evt);\n  }\n\n  deactivate(): void {\n    this.deactivate_();\n  }\n\n  layout(): void {\n    if (this.layoutFrame_) {\n      cancelAnimationFrame(this.layoutFrame_);\n    }\n    this.layoutFrame_ = requestAnimationFrame(() => {\n      this.layoutInternal_();\n      this.layoutFrame_ = 0;\n    });\n  }\n\n  setUnbounded(unbounded: boolean): void {\n    const {UNBOUNDED} = MDCRippleFoundation.cssClasses;\n    if (unbounded) {\n      this.adapter_.addClass(UNBOUNDED);\n    } else {\n      this.adapter_.removeClass(UNBOUNDED);\n    }\n  }\n\n  handleFocus(): void {\n    requestAnimationFrame(() =>\n        this.adapter_.addClass(MDCRippleFoundation.cssClasses.BG_FOCUSED));\n  }\n\n  handleBlur(): void {\n    requestAnimationFrame(() =>\n        this.adapter_.removeClass(MDCRippleFoundation.cssClasses.BG_FOCUSED));\n  }\n\n  /**\n   * We compute this property so that we are not querying information about the client\n   * until the point in time where the foundation requests it. This prevents scenarios where\n   * client-side feature-detection may happen too early, such as when components are rendered on the server\n   * and then initialized at mount time on the client.\n   */\n  private supportsPressRipple_(): boolean {\n    return this.adapter_.browserSupportsCssVars();\n  }\n\n  private defaultActivationState_(): ActivationStateType {\n    return {\n      activationEvent: undefined,\n      hasDeactivationUXRun: false,\n      isActivated: false,\n      isProgrammatic: false,\n      wasActivatedByPointer: false,\n      wasElementMadeActive: false,\n    };\n  }\n\n  /**\n   * supportsPressRipple Passed from init to save a redundant function call\n   */\n  private registerRootHandlers_(supportsPressRipple: boolean) {\n    if (supportsPressRipple) {\n      ACTIVATION_EVENT_TYPES.forEach((evtType) => {\n        this.adapter_.registerInteractionHandler(evtType, this.activateHandler_);\n      });\n      if (this.adapter_.isUnbounded()) {\n        this.adapter_.registerResizeHandler(this.resizeHandler_);\n      }\n    }\n\n    this.adapter_.registerInteractionHandler('focus', this.focusHandler_);\n    this.adapter_.registerInteractionHandler('blur', this.blurHandler_);\n  }\n\n  private registerDeactivationHandlers_(evt: Event) {\n    if (evt.type === 'keydown') {\n      this.adapter_.registerInteractionHandler('keyup', this.deactivateHandler_);\n    } else {\n      POINTER_DEACTIVATION_EVENT_TYPES.forEach((evtType) => {\n        this.adapter_.registerDocumentInteractionHandler(evtType, this.deactivateHandler_);\n      });\n    }\n  }\n\n  private deregisterRootHandlers_() {\n    ACTIVATION_EVENT_TYPES.forEach((evtType) => {\n      this.adapter_.deregisterInteractionHandler(evtType, this.activateHandler_);\n    });\n    this.adapter_.deregisterInteractionHandler('focus', this.focusHandler_);\n    this.adapter_.deregisterInteractionHandler('blur', this.blurHandler_);\n\n    if (this.adapter_.isUnbounded()) {\n      this.adapter_.deregisterResizeHandler(this.resizeHandler_);\n    }\n  }\n\n  private deregisterDeactivationHandlers_() {\n    this.adapter_.deregisterInteractionHandler('keyup', this.deactivateHandler_);\n    POINTER_DEACTIVATION_EVENT_TYPES.forEach((evtType) => {\n      this.adapter_.deregisterDocumentInteractionHandler(evtType, this.deactivateHandler_);\n    });\n  }\n\n  private removeCssVars_() {\n    const rippleStrings = MDCRippleFoundation.strings;\n    const keys = Object.keys(rippleStrings) as Array<keyof typeof rippleStrings>;\n    keys.forEach((key) => {\n      if (key.indexOf('VAR_') === 0) {\n        this.adapter_.updateCssVariable(rippleStrings[key], null);\n      }\n    });\n  }\n\n  private activate_(evt?: Event) {\n    if (this.adapter_.isSurfaceDisabled()) {\n      return;\n    }\n\n    const activationState = this.activationState_;\n    if (activationState.isActivated) {\n      return;\n    }\n\n    // Avoid reacting to follow-on events fired by touch device after an already-processed user interaction\n    const previousActivationEvent = this.previousActivationEvent_;\n    const isSameInteraction = previousActivationEvent && evt !== undefined && previousActivationEvent.type !== evt.type;\n    if (isSameInteraction) {\n      return;\n    }\n\n    activationState.isActivated = true;\n    activationState.isProgrammatic = evt === undefined;\n    activationState.activationEvent = evt;\n    activationState.wasActivatedByPointer = activationState.isProgrammatic ? false : evt !== undefined && (\n        evt.type === 'mousedown' || evt.type === 'touchstart' || evt.type === 'pointerdown'\n    );\n\n    const hasActivatedChild = evt !== undefined && activatedTargets.length > 0 && activatedTargets.some(\n        (target) => this.adapter_.containsEventTarget(target));\n    if (hasActivatedChild) {\n      // Immediately reset activation state, while preserving logic that prevents touch follow-on events\n      this.resetActivationState_();\n      return;\n    }\n\n    if (evt !== undefined) {\n      activatedTargets.push(evt.target);\n      this.registerDeactivationHandlers_(evt);\n    }\n\n    activationState.wasElementMadeActive = this.checkElementMadeActive_(evt);\n    if (activationState.wasElementMadeActive) {\n      this.animateActivation_();\n    }\n\n    requestAnimationFrame(() => {\n      // Reset array on next frame after the current event has had a chance to bubble to prevent ancestor ripples\n      activatedTargets = [];\n\n      if (!activationState.wasElementMadeActive\n          && evt !== undefined\n          && ((evt as KeyboardEvent).key === ' ' || (evt as KeyboardEvent).keyCode === 32)) {\n        // If space was pressed, try again within an rAF call to detect :active, because different UAs report\n        // active states inconsistently when they're called within event handling code:\n        // - https://bugs.chromium.org/p/chromium/issues/detail?id=635971\n        // - https://bugzilla.mozilla.org/show_bug.cgi?id=1293741\n        // We try first outside rAF to support Edge, which does not exhibit this problem, but will crash if a CSS\n        // variable is set within a rAF callback for a submit button interaction (#2241).\n        activationState.wasElementMadeActive = this.checkElementMadeActive_(evt);\n        if (activationState.wasElementMadeActive) {\n          this.animateActivation_();\n        }\n      }\n\n      if (!activationState.wasElementMadeActive) {\n        // Reset activation state immediately if element was not made active.\n        this.activationState_ = this.defaultActivationState_();\n      }\n    });\n  }\n\n  private checkElementMadeActive_(evt?: Event) {\n    return (evt !== undefined && evt.type === 'keydown') ? this.adapter_.isSurfaceActive() : true;\n  }\n\n  private animateActivation_() {\n    const {VAR_FG_TRANSLATE_START, VAR_FG_TRANSLATE_END} = MDCRippleFoundation.strings;\n    const {FG_DEACTIVATION, FG_ACTIVATION} = MDCRippleFoundation.cssClasses;\n    const {DEACTIVATION_TIMEOUT_MS} = MDCRippleFoundation.numbers;\n\n    this.layoutInternal_();\n\n    let translateStart = '';\n    let translateEnd = '';\n\n    if (!this.adapter_.isUnbounded()) {\n      const {startPoint, endPoint} = this.getFgTranslationCoordinates_();\n      translateStart = `${startPoint.x}px, ${startPoint.y}px`;\n      translateEnd = `${endPoint.x}px, ${endPoint.y}px`;\n    }\n\n    this.adapter_.updateCssVariable(VAR_FG_TRANSLATE_START, translateStart);\n    this.adapter_.updateCssVariable(VAR_FG_TRANSLATE_END, translateEnd);\n    // Cancel any ongoing activation/deactivation animations\n    clearTimeout(this.activationTimer_);\n    clearTimeout(this.fgDeactivationRemovalTimer_);\n    this.rmBoundedActivationClasses_();\n    this.adapter_.removeClass(FG_DEACTIVATION);\n\n    // Force layout in order to re-trigger the animation.\n    this.adapter_.computeBoundingRect();\n    this.adapter_.addClass(FG_ACTIVATION);\n    this.activationTimer_ = setTimeout(() => this.activationTimerCallback_(), DEACTIVATION_TIMEOUT_MS);\n  }\n\n  private getFgTranslationCoordinates_(): FgTranslationCoordinates {\n    const {activationEvent, wasActivatedByPointer} = this.activationState_;\n\n    let startPoint;\n    if (wasActivatedByPointer) {\n      startPoint = getNormalizedEventCoords(\n          activationEvent,\n          this.adapter_.getWindowPageOffset(),\n          this.adapter_.computeBoundingRect(),\n      );\n    } else {\n      startPoint = {\n        x: this.frame_.width / 2,\n        y: this.frame_.height / 2,\n      };\n    }\n    // Center the element around the start point.\n    startPoint = {\n      x: startPoint.x - (this.initialSize_ / 2),\n      y: startPoint.y - (this.initialSize_ / 2),\n    };\n\n    const endPoint = {\n      x: (this.frame_.width / 2) - (this.initialSize_ / 2),\n      y: (this.frame_.height / 2) - (this.initialSize_ / 2),\n    };\n\n    return {startPoint, endPoint};\n  }\n\n  private runDeactivationUXLogicIfReady_() {\n    // This method is called both when a pointing device is released, and when the activation animation ends.\n    // The deactivation animation should only run after both of those occur.\n    const {FG_DEACTIVATION} = MDCRippleFoundation.cssClasses;\n    const {hasDeactivationUXRun, isActivated} = this.activationState_;\n    const activationHasEnded = hasDeactivationUXRun || !isActivated;\n\n    if (activationHasEnded && this.activationAnimationHasEnded_) {\n      this.rmBoundedActivationClasses_();\n      this.adapter_.addClass(FG_DEACTIVATION);\n      this.fgDeactivationRemovalTimer_ = setTimeout(() => {\n        this.adapter_.removeClass(FG_DEACTIVATION);\n      }, numbers.FG_DEACTIVATION_MS);\n    }\n  }\n\n  private rmBoundedActivationClasses_() {\n    const {FG_ACTIVATION} = MDCRippleFoundation.cssClasses;\n    this.adapter_.removeClass(FG_ACTIVATION);\n    this.activationAnimationHasEnded_ = false;\n    this.adapter_.computeBoundingRect();\n  }\n\n  private resetActivationState_() {\n    this.previousActivationEvent_ = this.activationState_.activationEvent;\n    this.activationState_ = this.defaultActivationState_();\n    // Touch devices may fire additional events for the same interaction within a short time.\n    // Store the previous event until it's safe to assume that subsequent events are for new interactions.\n    setTimeout(() => this.previousActivationEvent_ = undefined, MDCRippleFoundation.numbers.TAP_DELAY_MS);\n  }\n\n  private deactivate_(): void {\n    const activationState = this.activationState_;\n    // This can happen in scenarios such as when you have a keyup event that blurs the element.\n    if (!activationState.isActivated) {\n      return;\n    }\n\n    const state: ActivationStateType = {...activationState};\n\n    if (activationState.isProgrammatic) {\n      requestAnimationFrame(() => this.animateDeactivation_(state));\n      this.resetActivationState_();\n    } else {\n      this.deregisterDeactivationHandlers_();\n      requestAnimationFrame(() => {\n        this.activationState_.hasDeactivationUXRun = true;\n        this.animateDeactivation_(state);\n        this.resetActivationState_();\n      });\n    }\n  }\n\n  private animateDeactivation_({wasActivatedByPointer, wasElementMadeActive}: ActivationStateType) {\n    if (wasActivatedByPointer || wasElementMadeActive) {\n      this.runDeactivationUXLogicIfReady_();\n    }\n  }\n\n  private layoutInternal_() {\n    this.frame_ = this.adapter_.computeBoundingRect();\n    const maxDim = Math.max(this.frame_.height, this.frame_.width);\n\n    // Surface diameter is treated differently for unbounded vs. bounded ripples.\n    // Unbounded ripple diameter is calculated smaller since the surface is expected to already be padded appropriately\n    // to extend the hitbox, and the ripple is expected to meet the edges of the padded hitbox (which is typically\n    // square). Bounded ripples, on the other hand, are fully expected to expand beyond the surface's longest diameter\n    // (calculated based on the diagonal plus a constant padding), and are clipped at the surface's border via\n    // `overflow: hidden`.\n    const getBoundedRadius = () => {\n      const hypotenuse = Math.sqrt(Math.pow(this.frame_.width, 2) + Math.pow(this.frame_.height, 2));\n      return hypotenuse + MDCRippleFoundation.numbers.PADDING;\n    };\n\n    this.maxRadius_ = this.adapter_.isUnbounded() ? maxDim : getBoundedRadius();\n\n    // Ripple is sized as a fraction of the largest dimension of the surface, then scales up using a CSS scale transform\n    const initialSize = Math.floor(maxDim * MDCRippleFoundation.numbers.INITIAL_ORIGIN_SCALE);\n    // Unbounded ripple size should always be even number to equally center align.\n    if (this.adapter_.isUnbounded() && initialSize % 2 !== 0) {\n      this.initialSize_ = initialSize - 1;\n    } else {\n      this.initialSize_ = initialSize;\n    }\n    this.fgScale_ = `${this.maxRadius_ / this.initialSize_}`;\n\n    this.updateLayoutCssVars_();\n  }\n\n  private updateLayoutCssVars_() {\n    const {\n      VAR_FG_SIZE, VAR_LEFT, VAR_TOP, VAR_FG_SCALE,\n    } = MDCRippleFoundation.strings;\n\n    this.adapter_.updateCssVariable(VAR_FG_SIZE, `${this.initialSize_}px`);\n    this.adapter_.updateCssVariable(VAR_FG_SCALE, this.fgScale_);\n\n    if (this.adapter_.isUnbounded()) {\n      this.unboundedCoords_ = {\n        left: Math.round((this.frame_.width / 2) - (this.initialSize_ / 2)),\n        top: Math.round((this.frame_.height / 2) - (this.initialSize_ / 2)),\n      };\n\n      this.adapter_.updateCssVariable(VAR_LEFT, `${this.unboundedCoords_.left}px`);\n      this.adapter_.updateCssVariable(VAR_TOP, `${this.unboundedCoords_.top}px`);\n    }\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCRippleFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport * as util from './util';\n\nexport {util};\nexport * from './adapter';\nexport * from './component';\nexport * from './constants';\nexport * from './foundation';\nexport * from './types';\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\nimport {MDCRipplePoint} from './types';\n\n/**\n * Stores result from supportsCssVariables to avoid redundant processing to\n * detect CSS custom variable support.\n */\nlet supportsCssVariables_: boolean | undefined;\n\nexport function supportsCssVariables(windowObj: Window, forceRefresh = false): boolean {\n  const {CSS} = windowObj;\n  let supportsCssVars = supportsCssVariables_;\n  if (typeof supportsCssVariables_ === 'boolean' && !forceRefresh) {\n    return supportsCssVariables_;\n  }\n\n  const supportsFunctionPresent = CSS && typeof CSS.supports === 'function';\n  if (!supportsFunctionPresent) {\n    return false;\n  }\n\n  const explicitlySupportsCssVars = CSS.supports('--css-vars', 'yes');\n  // See: https://bugs.webkit.org/show_bug.cgi?id=154669\n  // See: README section on Safari\n  const weAreFeatureDetectingSafari10plus = (\n      CSS.supports('(--css-vars: yes)') &&\n      CSS.supports('color', '#00000000')\n  );\n\n  supportsCssVars =\n      explicitlySupportsCssVars || weAreFeatureDetectingSafari10plus;\n\n  if (!forceRefresh) {\n    supportsCssVariables_ = supportsCssVars;\n  }\n  return supportsCssVars;\n}\n\nexport function getNormalizedEventCoords(evt: Event | undefined, pageOffset: MDCRipplePoint, clientRect: ClientRect):\n    MDCRipplePoint {\n  if (!evt) {\n    return {x: 0, y: 0};\n  }\n  const {x, y} = pageOffset;\n  const documentX = x + clientRect.left;\n  const documentY = y + clientRect.top;\n\n  let normalizedX;\n  let normalizedY;\n  // Determine touch point relative to the ripple container.\n  if (evt.type === 'touchstart') {\n    const touchEvent = evt as TouchEvent;\n    normalizedX = touchEvent.changedTouches[0].pageX - documentX;\n    normalizedY = touchEvent.changedTouches[0].pageY - documentY;\n  } else {\n    const mouseEvent = evt as MouseEvent;\n    normalizedX = mouseEvent.pageX - documentX;\n    normalizedY = mouseEvent.pageY - documentY;\n  }\n\n  return {x: normalizedX, y: normalizedY};\n}\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {CustomEventListener, SpecificEventListener} from '@material/base/types';\nimport {MDCFloatingLabel, MDCFloatingLabelFactory} from '@material/floating-label/component';\nimport {MDCLineRipple, MDCLineRippleFactory} from '@material/line-ripple/component';\nimport * as menuSurfaceConstants from '@material/menu-surface/constants';\nimport {MDCMenu, MDCMenuFactory} from '@material/menu/component';\nimport * as menuConstants from '@material/menu/constants';\nimport {MDCMenuItemEvent} from '@material/menu/types';\nimport {MDCNotchedOutline, MDCNotchedOutlineFactory} from '@material/notched-outline/component';\nimport {MDCRippleAdapter} from '@material/ripple/adapter';\nimport {MDCRipple} from '@material/ripple/component';\nimport {MDCRippleFoundation} from '@material/ripple/foundation';\nimport {MDCSelectAdapter} from './adapter';\nimport {cssClasses, strings} from './constants';\nimport {MDCSelectFoundation} from './foundation';\nimport {MDCSelectHelperText, MDCSelectHelperTextFactory} from './helper-text/component';\nimport {MDCSelectIcon, MDCSelectIconFactory} from './icon/component';\nimport {MDCSelectEventDetail, MDCSelectFoundationMap} from './types';\n\nexport class MDCSelect extends MDCComponent<MDCSelectFoundation> {\n  static attachTo(root: Element): MDCSelect {\n    return new MDCSelect(root);\n  }\n\n  // Root container for select (anchor) element and menu.\n  protected root_!: HTMLElement; // assigned in MDCComponent constructor\n\n  private ripple_!: MDCRipple | null;\n\n  private menu_!: MDCMenu; // assigned in menuSetup_()\n\n  private selectAnchor_!: HTMLElement; // assigned in initialize()\n  private selectedText_!: HTMLElement; // assigned in initialize()\n\n  private menuElement_!: Element; // assigned in menuSetup_()\n  private leadingIcon_?: MDCSelectIcon; // assigned in initialize()\n  private helperText_!: MDCSelectHelperText | null; // assigned in initialize()\n  private lineRipple_!: MDCLineRipple | null; // assigned in initialize()\n  private label_!: MDCFloatingLabel | null; // assigned in initialize()\n  private outline_!: MDCNotchedOutline | null; // assigned in initialize()\n  private handleChange_!: SpecificEventListener<'change'>; // assigned in initialize()\n  private handleFocus_!: SpecificEventListener<'focus'>; // assigned in initialize()\n  private handleBlur_!: SpecificEventListener<'blur'>; // assigned in initialize()\n  private handleClick_!: SpecificEventListener<'click'>; // assigned in initialize()\n  private handleKeydown_!: SpecificEventListener<'keydown'>; // assigned in initialize()\n  private handleMenuOpened_!: EventListener; // assigned in initialize()\n  private handleMenuClosed_!: EventListener; // assigned in initialize()\n  private handleMenuItemAction_!: CustomEventListener<MDCMenuItemEvent>; // assigned in initialize()\n\n  initialize(\n      labelFactory: MDCFloatingLabelFactory = (el) => new MDCFloatingLabel(el),\n      lineRippleFactory: MDCLineRippleFactory = (el) => new MDCLineRipple(el),\n      outlineFactory: MDCNotchedOutlineFactory = (el) => new MDCNotchedOutline(el),\n      menuFactory: MDCMenuFactory = (el) => new MDCMenu(el),\n      iconFactory: MDCSelectIconFactory = (el) => new MDCSelectIcon(el),\n      helperTextFactory: MDCSelectHelperTextFactory = (el) => new MDCSelectHelperText(el),\n  ) {\n    this.selectAnchor_ = this.root_.querySelector(strings.SELECT_ANCHOR_SELECTOR) as HTMLElement;\n    this.selectedText_ = this.root_.querySelector(strings.SELECTED_TEXT_SELECTOR) as HTMLElement;\n\n    if (!this.selectedText_) {\n      throw new Error(\n          'MDCSelect: Missing required element: The following selector must be present: ' +\n          `'${strings.SELECTED_TEXT_SELECTOR}'`,\n      );\n    }\n\n    if (this.selectedText_.hasAttribute(strings.ARIA_CONTROLS)) {\n      const helperTextElement = document.getElementById(this.selectedText_.getAttribute(strings.ARIA_CONTROLS)!);\n      if (helperTextElement) {\n        this.helperText_ = helperTextFactory(helperTextElement);\n      }\n    }\n\n    this.menuSetup_(menuFactory);\n\n    const labelElement = this.root_.querySelector(strings.LABEL_SELECTOR);\n    this.label_ = labelElement ? labelFactory(labelElement) : null;\n\n    const lineRippleElement = this.root_.querySelector(strings.LINE_RIPPLE_SELECTOR);\n    this.lineRipple_ = lineRippleElement ? lineRippleFactory(lineRippleElement) : null;\n\n    const outlineElement = this.root_.querySelector(strings.OUTLINE_SELECTOR);\n    this.outline_ = outlineElement ? outlineFactory(outlineElement) : null;\n\n    const leadingIcon = this.root_.querySelector(strings.LEADING_ICON_SELECTOR);\n    if (leadingIcon) {\n      this.leadingIcon_ = iconFactory(leadingIcon);\n    }\n\n    if (!this.root_.classList.contains(cssClasses.OUTLINED)) {\n      this.ripple_ = this.createRipple_();\n    }\n  }\n\n  /**\n   * Initializes the select's event listeners and internal state based\n   * on the environment's state.\n   */\n  initialSyncWithDOM() {\n    this.handleChange_ = () => this.foundation_.handleChange();\n    this.handleFocus_ = () => this.foundation_.handleFocus();\n    this.handleBlur_ = () => this.foundation_.handleBlur();\n    this.handleClick_ = (evt) => {\n      this.selectedText_.focus();\n      this.foundation_.handleClick(this.getNormalizedXCoordinate_(evt));\n    };\n    this.handleKeydown_ = (evt) => this.foundation_.handleKeydown(evt);\n    this.handleMenuItemAction_ = (evt) => this.foundation_.handleMenuItemAction(evt.detail.index);\n    this.handleMenuOpened_ = () => this.foundation_.handleMenuOpened();\n    this.handleMenuClosed_ = () => this.foundation_.handleMenuClosed();\n\n    this.selectedText_.addEventListener('focus', this.handleFocus_);\n    this.selectedText_.addEventListener('blur', this.handleBlur_);\n\n    this.selectedText_.addEventListener('click', this.handleClick_ as EventListener);\n\n    this.selectedText_!.addEventListener('keydown', this.handleKeydown_);\n    this.menu_!.listen(menuSurfaceConstants.strings.CLOSED_EVENT, this.handleMenuClosed_);\n    this.menu_!.listen(menuSurfaceConstants.strings.OPENED_EVENT, this.handleMenuOpened_);\n    this.menu_!.listen(menuConstants.strings.SELECTED_EVENT, this.handleMenuItemAction_);\n    this.foundation_.init();\n\n    // Sets disabled state in foundation\n    this.disabled = this.root_.classList.contains(cssClasses.DISABLED);\n  }\n\n  destroy() {\n    this.selectedText_.removeEventListener('change', this.handleChange_);\n    this.selectedText_.removeEventListener('focus', this.handleFocus_);\n    this.selectedText_.removeEventListener('blur', this.handleBlur_);\n    this.selectedText_.removeEventListener('keydown', this.handleKeydown_);\n    this.selectedText_.removeEventListener('click', this.handleClick_ as EventListener);\n\n    this.menu_.unlisten(menuSurfaceConstants.strings.CLOSED_EVENT, this.handleMenuClosed_);\n    this.menu_.unlisten(menuSurfaceConstants.strings.OPENED_EVENT, this.handleMenuOpened_);\n    this.menu_.unlisten(menuConstants.strings.SELECTED_EVENT, this.handleMenuItemAction_);\n    this.menu_.destroy();\n\n    if (this.ripple_) {\n      this.ripple_.destroy();\n    }\n    if (this.outline_) {\n      this.outline_.destroy();\n    }\n    if (this.leadingIcon_) {\n      this.leadingIcon_.destroy();\n    }\n    if (this.helperText_) {\n      this.helperText_.destroy();\n    }\n\n    super.destroy();\n  }\n\n  get value(): string {\n    return this.foundation_.getValue();\n  }\n\n  set value(value: string) {\n    this.foundation_.setValue(value);\n  }\n\n  get selectedIndex(): number {\n    return this.foundation_.getSelectedIndex();\n  }\n\n  set selectedIndex(selectedIndex: number) {\n    this.foundation_.setSelectedIndex(selectedIndex, /** closeMenu */ true);\n  }\n\n  get disabled(): boolean {\n    return this.foundation_.getDisabled();\n  }\n\n  set disabled(disabled: boolean) {\n    this.foundation_.setDisabled(disabled);\n  }\n\n  set leadingIconAriaLabel(label: string) {\n    this.foundation_.setLeadingIconAriaLabel(label);\n  }\n\n  /**\n   * Sets the text content of the leading icon.\n   */\n  set leadingIconContent(content: string) {\n    this.foundation_.setLeadingIconContent(content);\n  }\n\n  /**\n   * Sets the text content of the helper text.\n   */\n  set helperTextContent(content: string) {\n    this.foundation_.setHelperTextContent(content);\n  }\n\n  /**\n   * Sets the current invalid state of the select.\n   */\n  set valid(isValid: boolean) {\n    this.foundation_.setValid(isValid);\n  }\n\n  /**\n   * Checks if the select is in a valid state.\n   */\n  get valid(): boolean {\n    return this.foundation_.isValid();\n  }\n\n  /**\n   * Sets the control to the required state.\n   */\n  set required(isRequired: boolean) {\n    this.foundation_.setRequired(isRequired);\n  }\n\n  /**\n   * Returns whether the select is required.\n   */\n  get required(): boolean {\n    return this.foundation_.getRequired();\n  }\n\n  /**\n   * Recomputes the outline SVG path for the outline element.\n   */\n  layout() {\n    this.foundation_.layout();\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    const adapter: MDCSelectAdapter = {\n      ...this.getSelectAdapterMethods_(),\n      ...this.getCommonAdapterMethods_(),\n      ...this.getOutlineAdapterMethods_(),\n      ...this.getLabelAdapterMethods_(),\n    };\n    return new MDCSelectFoundation(adapter, this.getFoundationMap_());\n  }\n\n  /**\n   * Handles setup for the menu.\n   */\n  private menuSetup_(menuFactory: MDCMenuFactory) {\n    this.menuElement_ = this.root_.querySelector(strings.MENU_SELECTOR)!;\n    this.menu_ = menuFactory(this.menuElement_);\n  }\n\n  private createRipple_(): MDCRipple {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    const adapter: MDCRippleAdapter = {\n      ...MDCRipple.createAdapter({root_: this.selectAnchor_}),\n      registerInteractionHandler: (evtType, handler) => this.selectedText_.addEventListener(evtType, handler),\n      deregisterInteractionHandler: (evtType, handler) => this.selectedText_.removeEventListener(evtType, handler),\n    };\n    // tslint:enable:object-literal-sort-keys\n    return new MDCRipple(this.selectAnchor_, new MDCRippleFoundation(adapter));\n  }\n\n  private getSelectAdapterMethods_() {\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    return {\n      getSelectedMenuItem: () => this.menuElement_!.querySelector(strings.SELECTED_ITEM_SELECTOR),\n      getMenuItemAttr: (menuItem: Element, attr: string) => menuItem.getAttribute(attr),\n      setSelectedText: (text: string) => this.selectedText_.textContent = text,\n      isSelectedTextFocused: () => document.activeElement === this.selectedText_,\n      getSelectedTextAttr: (attr: string) => this.selectedText_.getAttribute(attr),\n      setSelectedTextAttr: (attr: string, value: string) => this.selectedText_.setAttribute(attr, value),\n      openMenu: () => this.menu_.open = true,\n      closeMenu: () => this.menu_.open = false,\n      getAnchorElement: () => this.root_.querySelector(strings.SELECT_ANCHOR_SELECTOR)!,\n      setMenuAnchorElement: (anchorEl: HTMLElement) => this.menu_.setAnchorElement(anchorEl),\n      setMenuAnchorCorner: (anchorCorner: menuSurfaceConstants.Corner) => this.menu_.setAnchorCorner(anchorCorner),\n      setMenuWrapFocus: (wrapFocus: boolean) => this.menu_.wrapFocus = wrapFocus,\n      setAttributeAtIndex: (index: number, attributeName: string, attributeValue: string) =>\n        this.menu_.items[index].setAttribute(attributeName, attributeValue),\n      removeAttributeAtIndex: (index: number, attributeName: string) =>\n        this.menu_.items[index].removeAttribute(attributeName),\n      focusMenuItemAtIndex: (index: number) => (this.menu_.items[index] as HTMLElement).focus(),\n      getMenuItemCount: () => this.menu_.items.length,\n      getMenuItemValues: () => this.menu_.items.map((el) => el.getAttribute(strings.VALUE_ATTR) || ''),\n      getMenuItemTextAtIndex: (index: number) => this.menu_.items[index].textContent as string,\n      addClassAtIndex: (index: number, className: string) => this.menu_.items[index].classList.add(className),\n      removeClassAtIndex: (index: number, className: string) => this.menu_.items[index].classList.remove(className),\n    };\n    // tslint:enable:object-literal-sort-keys\n  }\n\n  private getCommonAdapterMethods_() {\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    return {\n      addClass: (className: string) => this.root_.classList.add(className),\n      removeClass: (className: string) => this.root_.classList.remove(className),\n      hasClass: (className: string) => this.root_.classList.contains(className),\n      setRippleCenter: (normalizedX: number) => this.lineRipple_ && this.lineRipple_.setRippleCenter(normalizedX),\n      activateBottomLine: () => this.lineRipple_ && this.lineRipple_.activate(),\n      deactivateBottomLine: () => this.lineRipple_ && this.lineRipple_.deactivate(),\n      notifyChange: (value: string) => {\n        const index = this.selectedIndex;\n        this.emit<MDCSelectEventDetail>(strings.CHANGE_EVENT, {value, index}, true /* shouldBubble  */);\n      },\n    };\n    // tslint:enable:object-literal-sort-keys\n  }\n\n  private getOutlineAdapterMethods_() {\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    return {\n      hasOutline: () => Boolean(this.outline_),\n      notchOutline: (labelWidth: number) => this.outline_ && this.outline_.notch(labelWidth),\n      closeOutline: () => this.outline_ && this.outline_.closeNotch(),\n    };\n    // tslint:enable:object-literal-sort-keys\n  }\n\n  private getLabelAdapterMethods_() {\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    return {\n      hasLabel: () => !!this.label_,\n      floatLabel: (shouldFloat: boolean) => this.label_ && this.label_.float(shouldFloat),\n      getLabelWidth: () => this.label_ ? this.label_.getWidth() : 0,\n    };\n    // tslint:enable:object-literal-sort-keys\n  }\n\n  /**\n   * Calculates where the line ripple should start based on the x coordinate within the component.\n   */\n  private getNormalizedXCoordinate_(evt: MouseEvent | TouchEvent): number {\n    const targetClientRect = (evt.target as Element).getBoundingClientRect();\n    const xCoordinate = this.isTouchEvent_(evt) ? evt.touches[0].clientX : evt.clientX;\n    return xCoordinate - targetClientRect.left;\n  }\n\n  private isTouchEvent_(evt: MouseEvent | TouchEvent): evt is TouchEvent {\n    return Boolean((evt as TouchEvent).touches);\n  }\n\n  /**\n   * Returns a map of all subcomponents to subfoundations.\n   */\n  private getFoundationMap_(): Partial<MDCSelectFoundationMap> {\n    return {\n      helperText: this.helperText_ ? this.helperText_.foundation : undefined,\n      leadingIcon: this.leadingIcon_ ? this.leadingIcon_.foundation : undefined,\n    };\n  }\n}\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nconst cssClasses = {\n  ACTIVATED: 'mdc-select--activated',\n  DISABLED: 'mdc-select--disabled',\n  FOCUSED: 'mdc-select--focused',\n  INVALID: 'mdc-select--invalid',\n  OUTLINED: 'mdc-select--outlined',\n  REQUIRED: 'mdc-select--required',\n  ROOT: 'mdc-select',\n  SELECTED_ITEM_CLASS: 'mdc-list-item--selected',\n  WITH_LEADING_ICON: 'mdc-select--with-leading-icon',\n};\n\nconst strings = {\n  ARIA_CONTROLS: 'aria-controls',\n  ARIA_SELECTED_ATTR: 'aria-selected',\n  CHANGE_EVENT: 'MDCSelect:change',\n  LABEL_SELECTOR: '.mdc-floating-label',\n  LEADING_ICON_SELECTOR: '.mdc-select__icon',\n  LINE_RIPPLE_SELECTOR: '.mdc-line-ripple',\n  MENU_SELECTOR: '.mdc-select__menu',\n  OUTLINE_SELECTOR: '.mdc-notched-outline',\n  SELECTED_ITEM_SELECTOR: `.${cssClasses.SELECTED_ITEM_CLASS}`,\n  SELECTED_TEXT_SELECTOR: '.mdc-select__selected-text',\n  SELECT_ANCHOR_SELECTOR: '.mdc-select__anchor',\n  VALUE_ATTR: 'data-value',\n};\n\nconst numbers = {\n  LABEL_SCALE: 0.75,\n  UNSET_INDEX: -1,\n};\n\nexport {cssClasses, strings, numbers};\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {Corner} from '@material/menu-surface/constants';\n\nimport {MDCSelectAdapter} from './adapter';\nimport {cssClasses, numbers, strings} from './constants';\nimport {MDCSelectHelperTextFoundation} from './helper-text/foundation';\nimport {MDCSelectIconFoundation} from './icon/foundation';\nimport {MDCSelectFoundationMap} from './types';\n\nexport class MDCSelectFoundation extends MDCFoundation<MDCSelectAdapter> {\n  static get cssClasses() {\n    return cssClasses;\n  }\n\n  static get numbers() {\n    return numbers;\n  }\n\n  static get strings() {\n    return strings;\n  }\n\n  /**\n   * See {@link MDCSelectAdapter} for typing information on parameters and return types.\n   */\n  static get defaultAdapter(): MDCSelectAdapter {\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    return {\n      addClass: () => undefined,\n      removeClass: () => undefined,\n      hasClass: () => false,\n      activateBottomLine: () => undefined,\n      deactivateBottomLine: () => undefined,\n      getSelectedMenuItem: () => null,\n      hasLabel: () => false,\n      floatLabel: () => undefined,\n      getLabelWidth: () => 0,\n      hasOutline: () => false,\n      notchOutline: () => undefined,\n      closeOutline: () => undefined,\n      setRippleCenter: () => undefined,\n      notifyChange: () => undefined,\n      setSelectedText: () => undefined,\n      isSelectedTextFocused: () => false,\n      getSelectedTextAttr: () => '',\n      setSelectedTextAttr: () => undefined,\n      openMenu: () => undefined,\n      closeMenu: () => undefined,\n      getAnchorElement: () => null,\n      setMenuAnchorElement: () => undefined,\n      setMenuAnchorCorner: () => undefined,\n      setMenuWrapFocus: () => undefined,\n      setAttributeAtIndex: () => undefined,\n      removeAttributeAtIndex: () => undefined,\n      focusMenuItemAtIndex: () => undefined,\n      getMenuItemCount: () => 0,\n      getMenuItemValues: () => [],\n      getMenuItemTextAtIndex: () => '',\n      getMenuItemAttr: () => '',\n      addClassAtIndex: () => undefined,\n      removeClassAtIndex: () => undefined,\n    };\n    // tslint:enable:object-literal-sort-keys\n  }\n\n  private readonly leadingIcon_: MDCSelectIconFoundation | undefined;\n  private readonly helperText_: MDCSelectHelperTextFoundation | undefined;\n\n  // Index of the currently selected menu item.\n  private selectedIndex_: number = numbers.UNSET_INDEX;\n  // VALUE_ATTR values of the menu items.\n  private readonly menuItemValues_: string[];\n  // Disabled state\n  private disabled_ = false;\n  // isMenuOpen_ is used to track the state of the menu by listening to the MDCMenuSurface:closed event\n  // For reference, menu.open will return false if the menu is still closing, but isMenuOpen_ returns false only after\n  // the menu has closed\n  private isMenuOpen_ = false;\n\n  /* istanbul ignore next: optional argument is not a branch statement */\n  /**\n   * @param adapter\n   * @param foundationMap Map from subcomponent names to their subfoundations.\n   */\n  constructor(adapter?: Partial<MDCSelectAdapter>, foundationMap: Partial<MDCSelectFoundationMap> = {}) {\n    super({...MDCSelectFoundation.defaultAdapter, ...adapter});\n\n    this.leadingIcon_ = foundationMap.leadingIcon;\n    this.helperText_ = foundationMap.helperText;\n\n    this.menuItemValues_ = this.adapter_.getMenuItemValues();\n  }\n\n  /** Returns the index of the currently selected menu item, or -1 if none. */\n  getSelectedIndex(): number {\n    return this.selectedIndex_;\n  }\n\n  setSelectedIndex(index: number, closeMenu = false) {\n    if (index >= this.adapter_.getMenuItemCount()) {\n      return;\n    }\n\n    const previouslySelectedIndex = this.selectedIndex_;\n    this.selectedIndex_ = index;\n\n    if (this.selectedIndex_ === numbers.UNSET_INDEX) {\n      this.adapter_.setSelectedText('');\n    } else {\n      this.adapter_.setSelectedText(this.adapter_.getMenuItemTextAtIndex(this.selectedIndex_)!.trim());\n    }\n\n    if (previouslySelectedIndex !== numbers.UNSET_INDEX) {\n      this.adapter_.removeClassAtIndex(previouslySelectedIndex, cssClasses.SELECTED_ITEM_CLASS);\n      this.adapter_.removeAttributeAtIndex(previouslySelectedIndex, strings.ARIA_SELECTED_ATTR);\n    }\n    if (this.selectedIndex_ !== numbers.UNSET_INDEX) {\n      this.adapter_.addClassAtIndex(this.selectedIndex_, cssClasses.SELECTED_ITEM_CLASS);\n      this.adapter_.setAttributeAtIndex(this.selectedIndex_, strings.ARIA_SELECTED_ATTR, 'true');\n    }\n    this.layout();\n\n    if (closeMenu) {\n      this.adapter_.closeMenu();\n    }\n\n    this.handleChange();\n  }\n\n  setValue(value: string) {\n    const index = this.menuItemValues_.indexOf(value);\n    this.setSelectedIndex(index);\n    this.handleChange();\n  }\n\n  getValue() {\n    const listItem = this.adapter_.getSelectedMenuItem();\n    if (listItem) {\n      return this.adapter_.getMenuItemAttr(listItem, strings.VALUE_ATTR) || '';\n    }\n    return '';\n  }\n\n  getDisabled() {\n    return this.disabled_;\n  }\n\n  setDisabled(isDisabled: boolean) {\n    this.disabled_ = isDisabled;\n    if (this.disabled_) {\n      this.adapter_.addClass(cssClasses.DISABLED);\n      this.adapter_.closeMenu();\n    } else {\n      this.adapter_.removeClass(cssClasses.DISABLED);\n    }\n\n    if (this.leadingIcon_) {\n      this.leadingIcon_.setDisabled(this.disabled_);\n    }\n\n    this.adapter_.setSelectedTextAttr('tabindex', this.disabled_ ? '-1' : '0');\n    this.adapter_.setSelectedTextAttr('aria-disabled', this.disabled_.toString());\n  }\n\n  /**\n   * @param content Sets the content of the helper text.\n   */\n  setHelperTextContent(content: string) {\n    if (this.helperText_) {\n      this.helperText_.setContent(content);\n    }\n  }\n\n  layout() {\n    if (this.adapter_.hasLabel()) {\n      const openNotch = this.getValue().length > 0;\n      this.notchOutline(openNotch);\n    }\n  }\n\n  handleMenuOpened() {\n    if (this.adapter_.getMenuItemValues().length === 0) {\n      return;\n    }\n\n    this.adapter_.addClass(cssClasses.ACTIVATED);\n\n    // Menu should open to the last selected element, should open to first menu item otherwise.\n    const focusItemIndex = this.selectedIndex_ >= 0 ? this.selectedIndex_ : 0;\n    this.adapter_.focusMenuItemAtIndex(focusItemIndex);\n  }\n\n  handleMenuClosed() {\n    this.adapter_.removeClass(cssClasses.ACTIVATED);\n    this.isMenuOpen_ = false;\n    this.adapter_.setSelectedTextAttr('aria-expanded', 'false');\n\n    // Unfocus the select if menu is closed without a selection\n    if (!this.adapter_.isSelectedTextFocused()) {\n      this.blur_();\n    }\n  }\n\n  /**\n   * Handles value changes, via change event or programmatic updates.\n   */\n  handleChange() {\n    this.updateLabel_();\n    this.adapter_.notifyChange(this.getValue());\n\n    const isRequired = this.adapter_.hasClass(cssClasses.REQUIRED);\n    if (isRequired) {\n      this.setValid(this.isValid());\n      if (this.helperText_) {\n        this.helperText_.setValidity(this.isValid());\n      }\n    }\n  }\n\n  handleMenuItemAction(index: number) {\n    this.setSelectedIndex(index, /** closeMenu */ true);\n  }\n\n  /**\n   * Handles focus events from select element.\n   */\n  handleFocus() {\n    this.adapter_.addClass(cssClasses.FOCUSED);\n\n    if (this.adapter_.hasLabel()) {\n      this.notchOutline(true);\n      this.adapter_.floatLabel(true);\n    }\n\n    this.adapter_.activateBottomLine();\n    if (this.helperText_) {\n      this.helperText_.showToScreenReader();\n    }\n  }\n\n  /**\n   * Handles blur events from select element.\n   */\n  handleBlur() {\n    if (this.isMenuOpen_) {\n      return;\n    }\n    this.blur_();\n  }\n\n  handleClick(normalizedX: number) {\n    if (this.isMenuOpen_) {\n      return;\n    }\n    this.adapter_.setRippleCenter(normalizedX);\n\n    this.adapter_.openMenu();\n    this.isMenuOpen_ = true;\n    this.adapter_.setSelectedTextAttr('aria-expanded', 'true');\n  }\n\n  handleKeydown(event: KeyboardEvent) {\n    if (this.isMenuOpen_) {\n      return;\n    }\n\n    const isEnter = event.key === 'Enter' || event.keyCode === 13;\n    const isSpace = event.key === 'Space' || event.keyCode === 32;\n    const arrowUp = event.key === 'ArrowUp' || event.keyCode === 38;\n    const arrowDown = event.key === 'ArrowDown' || event.keyCode === 40;\n\n    if (this.adapter_.hasClass(cssClasses.FOCUSED) && (isEnter || isSpace || arrowUp || arrowDown)) {\n      this.adapter_.openMenu();\n      this.isMenuOpen_ = true;\n      this.adapter_.setSelectedTextAttr('aria-expanded', 'true');\n      event.preventDefault();\n    }\n  }\n\n  /**\n   * Opens/closes the notched outline.\n   */\n  notchOutline(openNotch: boolean) {\n    if (!this.adapter_.hasOutline()) {\n      return;\n    }\n    const isFocused = this.adapter_.hasClass(cssClasses.FOCUSED);\n\n    if (openNotch) {\n      const labelScale = numbers.LABEL_SCALE;\n      const labelWidth = this.adapter_.getLabelWidth() * labelScale;\n      this.adapter_.notchOutline(labelWidth);\n    } else if (!isFocused) {\n      this.adapter_.closeOutline();\n    }\n  }\n\n  /**\n   * Sets the aria label of the leading icon.\n   */\n  setLeadingIconAriaLabel(label: string) {\n    if (this.leadingIcon_) {\n      this.leadingIcon_.setAriaLabel(label);\n    }\n  }\n\n  /**\n   * Sets the text content of the leading icon.\n   */\n  setLeadingIconContent(content: string) {\n    if (this.leadingIcon_) {\n      this.leadingIcon_.setContent(content);\n    }\n  }\n\n  setValid(isValid: boolean) {\n    this.adapter_.setSelectedTextAttr('aria-invalid', (!isValid).toString());\n    if (isValid) {\n      this.adapter_.removeClass(cssClasses.INVALID);\n    } else {\n      this.adapter_.addClass(cssClasses.INVALID);\n    }\n  }\n\n  isValid() {\n    if (this.adapter_.hasClass(cssClasses.REQUIRED) && !this.adapter_.hasClass(cssClasses.DISABLED)) {\n      // See notes for required attribute under https://www.w3.org/TR/html52/sec-forms.html#the-select-element\n      // TL;DR: Invalid if no index is selected, or if the first index is selected and has an empty value.\n      return this.selectedIndex_ !== numbers.UNSET_INDEX &&\n        (this.selectedIndex_ !== 0 || Boolean(this.getValue()));\n    }\n    return true;\n  }\n\n  setRequired(isRequired: boolean) {\n    if (isRequired) {\n      this.adapter_.addClass(cssClasses.REQUIRED);\n    } else {\n      this.adapter_.removeClass(cssClasses.REQUIRED);\n    }\n    this.adapter_.setSelectedTextAttr('aria-required', isRequired.toString());\n  }\n\n  getRequired() {\n    return this.adapter_.getSelectedTextAttr('aria-required') === 'true';\n  }\n\n  init() {\n    const anchorEl = this.adapter_.getAnchorElement();\n    if (anchorEl) {\n      this.adapter_.setMenuAnchorElement(anchorEl);\n      this.adapter_.setMenuAnchorCorner(Corner.BOTTOM_START);\n    }\n    this.adapter_.setMenuWrapFocus(false);\n\n    const value = this.getValue();\n    if (value) {\n      this.setValue(value);\n    }\n\n    // Initially sync floating label\n    this.updateLabel_();\n  }\n\n  /**\n   * Notches the outline and floats the label when appropriate.\n   */\n  private updateLabel_() {\n    const value = this.getValue();\n    const optionHasValue = value.length > 0;\n\n    if (this.adapter_.hasLabel()) {\n      this.notchOutline(optionHasValue);\n\n      if (!this.adapter_.hasClass(cssClasses.FOCUSED)) {\n        this.adapter_.floatLabel(optionHasValue);\n      }\n    }\n  }\n\n  /**\n   * Unfocuses the select component.\n   */\n  private blur_() {\n    this.adapter_.removeClass(cssClasses.FOCUSED);\n    this.updateLabel_();\n    this.adapter_.deactivateBottomLine();\n\n    const isRequired = this.adapter_.hasClass(cssClasses.REQUIRED);\n    if (isRequired) {\n      this.setValid(this.isValid());\n      if (this.helperText_) {\n        this.helperText_.setValidity(this.isValid());\n      }\n    }\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCSelectFoundation;\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {MDCSelectHelperTextAdapter} from './adapter';\nimport {MDCSelectHelperTextFoundation} from './foundation';\n\nexport type MDCSelectHelperTextFactory =\n    (el: Element, foundation?: MDCSelectHelperTextFoundation) => MDCSelectHelperText;\n\nexport class MDCSelectHelperText extends MDCComponent<MDCSelectHelperTextFoundation> {\n  static attachTo(root: Element): MDCSelectHelperText {\n    return new MDCSelectHelperText(root);\n  }\n\n  get foundation(): MDCSelectHelperTextFoundation {\n    return this.foundation_;\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    const adapter: MDCSelectHelperTextAdapter = {\n      addClass: (className) => this.root_.classList.add(className),\n      removeClass: (className) => this.root_.classList.remove(className),\n      hasClass: (className) => this.root_.classList.contains(className),\n      setAttr: (attr, value) => this.root_.setAttribute(attr, value),\n      removeAttr: (attr) => this.root_.removeAttribute(attr),\n      setContent: (content) => {\n        this.root_.textContent = content;\n      },\n    };\n    // tslint:enable:object-literal-sort-keys\n    return new MDCSelectHelperTextFoundation(adapter);\n  }\n}\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nconst strings = {\n  ARIA_HIDDEN: 'aria-hidden',\n  ROLE: 'role',\n};\n\nconst cssClasses = {\n  HELPER_TEXT_PERSISTENT: 'mdc-select-helper-text--persistent',\n  HELPER_TEXT_VALIDATION_MSG: 'mdc-select-helper-text--validation-msg',\n};\n\nexport {strings, cssClasses};\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {MDCSelectHelperTextAdapter} from './adapter';\nimport {cssClasses, strings} from './constants';\n\nexport class MDCSelectHelperTextFoundation extends MDCFoundation<MDCSelectHelperTextAdapter> {\n  static get cssClasses() {\n    return cssClasses;\n  }\n\n  static get strings() {\n    return strings;\n  }\n\n  /**\n   * See {@link MDCSelectHelperTextAdapter} for typing information on parameters and return types.\n   */\n  static get defaultAdapter(): MDCSelectHelperTextAdapter {\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    return {\n      addClass: () => undefined,\n      removeClass: () => undefined,\n      hasClass: () => false,\n      setAttr: () => undefined,\n      removeAttr: () => undefined,\n      setContent: () => undefined,\n    };\n    // tslint:enable:object-literal-sort-keys\n  }\n\n  constructor(adapter?: Partial<MDCSelectHelperTextAdapter>) {\n    super({...MDCSelectHelperTextFoundation.defaultAdapter, ...adapter});\n  }\n\n  /**\n   * Sets the content of the helper text field.\n   */\n  setContent(content: string) {\n    this.adapter_.setContent(content);\n  }\n\n  /**\n   *  Sets the persistency of the helper text.\n   */\n  setPersistent(isPersistent: boolean) {\n    if (isPersistent) {\n      this.adapter_.addClass(cssClasses.HELPER_TEXT_PERSISTENT);\n    } else {\n      this.adapter_.removeClass(cssClasses.HELPER_TEXT_PERSISTENT);\n    }\n  }\n\n  /**\n   * @param isValidation True to make the helper text act as an error validation message.\n   */\n  setValidation(isValidation: boolean) {\n    if (isValidation) {\n      this.adapter_.addClass(cssClasses.HELPER_TEXT_VALIDATION_MSG);\n    } else {\n      this.adapter_.removeClass(cssClasses.HELPER_TEXT_VALIDATION_MSG);\n    }\n  }\n\n  /**\n   * Makes the helper text visible to screen readers.\n   */\n  showToScreenReader() {\n    this.adapter_.removeAttr(strings.ARIA_HIDDEN);\n  }\n\n  /**\n   * Sets the validity of the helper text based on the select validity.\n   */\n  setValidity(selectIsValid: boolean) {\n    const helperTextIsPersistent = this.adapter_.hasClass(cssClasses.HELPER_TEXT_PERSISTENT);\n    const helperTextIsValidationMsg = this.adapter_.hasClass(cssClasses.HELPER_TEXT_VALIDATION_MSG);\n    const validationMsgNeedsDisplay = helperTextIsValidationMsg && !selectIsValid;\n\n    if (validationMsgNeedsDisplay) {\n      this.adapter_.setAttr(strings.ROLE, 'alert');\n    } else {\n      this.adapter_.removeAttr(strings.ROLE);\n    }\n\n    if (!helperTextIsPersistent && !validationMsgNeedsDisplay) {\n      this.hide_();\n    }\n  }\n\n  /**\n   * Hides the help text from screen readers.\n   */\n  private hide_() {\n    this.adapter_.setAttr(strings.ARIA_HIDDEN, 'true');\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCSelectHelperTextFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport * from './adapter';\nexport * from './component';\nexport * from './foundation';\nexport {cssClasses as helperTextCssClasses, strings as helperTextStrings} from './constants';\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {MDCSelectIconAdapter} from './adapter';\nimport {MDCSelectIconFoundation} from './foundation';\n\nexport type MDCSelectIconFactory = (el: Element, foundation?: MDCSelectIconFoundation) => MDCSelectIcon;\n\nexport class MDCSelectIcon extends MDCComponent<MDCSelectIconFoundation> {\n  static attachTo(root: Element): MDCSelectIcon {\n    return new MDCSelectIcon(root);\n  }\n\n  get foundation(): MDCSelectIconFoundation {\n    return this.foundation_;\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    const adapter: MDCSelectIconAdapter = {\n      getAttr: (attr) => this.root_.getAttribute(attr),\n      setAttr: (attr, value) => this.root_.setAttribute(attr, value),\n      removeAttr: (attr) => this.root_.removeAttribute(attr),\n      setContent: (content) => {\n        this.root_.textContent = content;\n      },\n      registerInteractionHandler: (evtType, handler) => this.listen(evtType, handler),\n      deregisterInteractionHandler: (evtType, handler) => this.unlisten(evtType, handler),\n      notifyIconAction: () => this.emit(\n          MDCSelectIconFoundation.strings.ICON_EVENT, {} /* evtData */, true /* shouldBubble */),\n    };\n    // tslint:enable:object-literal-sort-keys\n    return new MDCSelectIconFoundation(adapter);\n  }\n}\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nconst strings = {\n  ICON_EVENT: 'MDCSelect:icon',\n  ICON_ROLE: 'button',\n};\n\nexport {strings};\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {SpecificEventListener} from '@material/base/types';\nimport {MDCSelectIconAdapter} from './adapter';\nimport {strings} from './constants';\n\ntype InteractionEventType = 'click' | 'keydown';\n\nconst INTERACTION_EVENTS: InteractionEventType[] = ['click', 'keydown'];\n\nexport class MDCSelectIconFoundation extends MDCFoundation<MDCSelectIconAdapter> {\n  static get strings() {\n    return strings;\n  }\n\n  /**\n   * See {@link MDCSelectIconAdapter} for typing information on parameters and return types.\n   */\n  static get defaultAdapter(): MDCSelectIconAdapter {\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    return {\n      getAttr: () => null,\n      setAttr: () => undefined,\n      removeAttr: () => undefined,\n      setContent: () => undefined,\n      registerInteractionHandler: () => undefined,\n      deregisterInteractionHandler: () => undefined,\n      notifyIconAction: () => undefined,\n    };\n    // tslint:enable:object-literal-sort-keys\n  }\n\n  private savedTabIndex_: string | null = null;\n\n  // assigned in initialSyncWithDOM()\n  private readonly interactionHandler_!: SpecificEventListener<InteractionEventType>;\n\n  constructor(adapter?: Partial<MDCSelectIconAdapter>) {\n    super({...MDCSelectIconFoundation.defaultAdapter, ...adapter});\n\n    this.interactionHandler_ = (evt) => this.handleInteraction(evt);\n  }\n\n  init() {\n    this.savedTabIndex_ = this.adapter_.getAttr('tabindex');\n\n    INTERACTION_EVENTS.forEach((evtType) => {\n      this.adapter_.registerInteractionHandler(evtType, this.interactionHandler_);\n    });\n  }\n\n  destroy() {\n    INTERACTION_EVENTS.forEach((evtType) => {\n      this.adapter_.deregisterInteractionHandler(evtType, this.interactionHandler_);\n    });\n  }\n\n  setDisabled(disabled: boolean) {\n    if (!this.savedTabIndex_) {\n      return;\n    }\n\n    if (disabled) {\n      this.adapter_.setAttr('tabindex', '-1');\n      this.adapter_.removeAttr('role');\n    } else {\n      this.adapter_.setAttr('tabindex', this.savedTabIndex_);\n      this.adapter_.setAttr('role', strings.ICON_ROLE);\n    }\n  }\n\n  setAriaLabel(label: string) {\n    this.adapter_.setAttr('aria-label', label);\n  }\n\n  setContent(content: string) {\n    this.adapter_.setContent(content);\n  }\n\n  handleInteraction(evt: MouseEvent | KeyboardEvent) {\n    const isEnterKey = (evt as KeyboardEvent).key === 'Enter' || (evt as KeyboardEvent).keyCode === 13;\n    if (evt.type === 'click' || isEnterKey) {\n      this.adapter_.notifyIconAction();\n    }\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCSelectIconFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport * from './adapter';\nexport * from './component';\nexport * from './foundation';\nexport {strings as iconStrings} from './constants';\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport * from './adapter';\nexport * from './component';\nexport * from './constants';\nexport * from './foundation';\nexport * from './types';\nexport * from './helper-text/index';\nexport * from './icon/index';\n","/**\n * @license\n * Copyright 2017 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {applyPassive} from '@material/dom/events';\nimport {MDCSliderAdapter} from './adapter';\nimport {strings} from './constants';\nimport {MDCSliderFoundation} from './foundation';\n\nexport class MDCSlider extends MDCComponent<MDCSliderFoundation> {\n  static attachTo(root: Element) {\n    return new MDCSlider(root);\n  }\n\n  protected root_!: HTMLElement;  // assigned in MDCComponent constructor\n\n  private thumbContainer_!: HTMLElement;        // assigned in initialize()\n  private track_!: HTMLElement;                 // assigned in initialize()\n  private pinValueMarker_!: HTMLElement;        // assigned in initialize()\n  private trackMarkerContainer_!: HTMLElement;  // assigned in initialize()\n\n  get value(): number {\n    return this.foundation_.getValue();\n  }\n\n  set value(value: number) {\n    this.foundation_.setValue(value);\n  }\n\n  get min(): number {\n    return this.foundation_.getMin();\n  }\n\n  set min(min: number) {\n    this.foundation_.setMin(min);\n  }\n\n  get max(): number {\n    return this.foundation_.getMax();\n  }\n\n  set max(max: number) {\n    this.foundation_.setMax(max);\n  }\n\n  get step(): number {\n    return this.foundation_.getStep();\n  }\n\n  set step(step: number) {\n    this.foundation_.setStep(step);\n  }\n\n  get disabled(): boolean {\n    return this.foundation_.isDisabled();\n  }\n\n  set disabled(disabled: boolean) {\n    this.foundation_.setDisabled(disabled);\n  }\n\n  initialize() {\n    this.thumbContainer_ = this.root_.querySelector<HTMLElement>(\n        strings.THUMB_CONTAINER_SELECTOR)!;\n    this.track_ =\n        this.root_.querySelector<HTMLElement>(strings.TRACK_SELECTOR)!;\n    this.pinValueMarker_ = this.root_.querySelector<HTMLElement>(\n        strings.PIN_VALUE_MARKER_SELECTOR)!;\n    this.trackMarkerContainer_ = this.root_.querySelector<HTMLElement>(\n        strings.TRACK_MARKER_CONTAINER_SELECTOR)!;\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take\n    // a Partial<MDCFooAdapter>. To ensure we don't accidentally omit any\n    // methods, we need a separate, strongly typed adapter variable.\n    // tslint:disable:object-literal-sort-keys Methods should be in the same\n    // order as the adapter interface.\n    const adapter: MDCSliderAdapter = {\n      hasClass: (className) => this.root_.classList.contains(className),\n      addClass: (className) => this.root_.classList.add(className),\n      removeClass: (className) => this.root_.classList.remove(className),\n      getAttribute: (name) => this.root_.getAttribute(name),\n      setAttribute: (name, value) => this.root_.setAttribute(name, value),\n      removeAttribute: (name) => this.root_.removeAttribute(name),\n      computeBoundingRect: () => this.root_.getBoundingClientRect(),\n      getTabIndex: () => this.root_.tabIndex,\n      registerInteractionHandler: (evtType, handler) =>\n          this.listen(evtType, handler, applyPassive()),\n      deregisterInteractionHandler: (evtType, handler) =>\n          this.unlisten(evtType, handler, applyPassive()),\n      registerThumbContainerInteractionHandler: (evtType, handler) => {\n        this.thumbContainer_.addEventListener(evtType, handler, applyPassive());\n      },\n      deregisterThumbContainerInteractionHandler: (evtType, handler) => {\n        this.thumbContainer_.removeEventListener(\n            evtType, handler, applyPassive());\n      },\n      registerBodyInteractionHandler: (evtType, handler) =>\n          document.body.addEventListener(evtType, handler),\n      deregisterBodyInteractionHandler: (evtType, handler) =>\n          document.body.removeEventListener(evtType, handler),\n      registerResizeHandler: (handler) =>\n          window.addEventListener('resize', handler),\n      deregisterResizeHandler: (handler) =>\n          window.removeEventListener('resize', handler),\n      notifyInput: () => this.emit<MDCSlider>(\n          strings.INPUT_EVENT,\n          this),  // TODO(acdvorak): Create detail interface\n      notifyChange: () => this.emit<MDCSlider>(\n          strings.CHANGE_EVENT,\n          this),  // TODO(acdvorak): Create detail interface\n      setThumbContainerStyleProperty: (propertyName, value) => {\n        this.thumbContainer_.style.setProperty(propertyName, value);\n      },\n      setTrackStyleProperty: (propertyName, value) =>\n          this.track_.style.setProperty(propertyName, value),\n      setMarkerValue: (value) => this.pinValueMarker_.innerText =\n          value.toLocaleString(),\n      setTrackMarkers: (step, max, min) => {\n        const stepStr = step.toLocaleString();\n        const maxStr = max.toLocaleString();\n        const minStr = min.toLocaleString();\n        // keep calculation in css for better rounding/subpixel behavior\n        const markerAmount = `((${maxStr} - ${minStr}) / ${stepStr})`;\n        const markerWidth = `2px`;\n        const markerBkgdImage = `linear-gradient(to right, currentColor ${\n            markerWidth}, transparent 0)`;\n        const markerBkgdLayout = `0 center / calc((100% - ${markerWidth}) / ${\n            markerAmount}) 100% repeat-x`;\n        const markerBkgdShorthand = `${markerBkgdImage} ${markerBkgdLayout}`;\n        this.trackMarkerContainer_.style.setProperty(\n            'background', markerBkgdShorthand);\n      },\n      isRTL: () => getComputedStyle(this.root_).direction === 'rtl',\n    };\n    // tslint:enable:object-literal-sort-keys\n    return new MDCSliderFoundation(adapter);\n  }\n\n  initialSyncWithDOM() {\n    const origValueNow = this.parseFloat_(\n        this.root_.getAttribute(strings.ARIA_VALUENOW), this.value);\n    const min = this.parseFloat_(\n        this.root_.getAttribute(strings.ARIA_VALUEMIN), this.min);\n    const max = this.parseFloat_(\n        this.root_.getAttribute(strings.ARIA_VALUEMAX), this.max);\n\n    // min and max need to be set in the right order to avoid throwing an error\n    // when the new min is greater than the default max.\n    if (min >= this.max) {\n      this.max = max;\n      this.min = min;\n    } else {\n      this.min = min;\n      this.max = max;\n    }\n\n    this.step = this.parseFloat_(\n        this.root_.getAttribute(strings.STEP_DATA_ATTR), this.step);\n    this.value = origValueNow;\n    this.disabled =\n        (this.root_.hasAttribute(strings.ARIA_DISABLED) &&\n         this.root_.getAttribute(strings.ARIA_DISABLED) !== 'false');\n    this.foundation_.setupTrackMarker();\n  }\n\n  layout() {\n    this.foundation_.layout();\n  }\n\n  stepUp(amount = (this.step || 1)) {\n    this.value += amount;\n  }\n\n  stepDown(amount = (this.step || 1)) {\n    this.value -= amount;\n  }\n\n  private parseFloat_(str: string|null, defaultValue: number) {\n    const num = parseFloat(str!);  // tslint:disable-line:ban\n    const isNumeric = typeof num === 'number' && isFinite(num);\n    return isNumeric ? num : defaultValue;\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nconst cssClasses = {\n  ACTIVE: 'mdc-slider--active',\n  DISABLED: 'mdc-slider--disabled',\n  DISCRETE: 'mdc-slider--discrete',\n  FOCUS: 'mdc-slider--focus',\n  HAS_TRACK_MARKER: 'mdc-slider--display-markers',\n  IN_TRANSIT: 'mdc-slider--in-transit',\n  IS_DISCRETE: 'mdc-slider--discrete',\n};\n\nconst strings = {\n  ARIA_DISABLED: 'aria-disabled',\n  ARIA_VALUEMAX: 'aria-valuemax',\n  ARIA_VALUEMIN: 'aria-valuemin',\n  ARIA_VALUENOW: 'aria-valuenow',\n  CHANGE_EVENT: 'MDCSlider:change',\n  INPUT_EVENT: 'MDCSlider:input',\n  PIN_VALUE_MARKER_SELECTOR: '.mdc-slider__pin-value-marker',\n  STEP_DATA_ATTR: 'data-step',\n  THUMB_CONTAINER_SELECTOR: '.mdc-slider__thumb-container',\n  TRACK_MARKER_CONTAINER_SELECTOR: '.mdc-slider__track-marker-container',\n  TRACK_SELECTOR: '.mdc-slider__track',\n};\n\nconst numbers = {\n  PAGE_FACTOR: 4,\n};\n\nexport {cssClasses, strings, numbers};\n","/**\n * @license\n * Copyright 2017 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {getCorrectEventName, getCorrectPropertyName} from '@material/animation/util';\nimport {MDCFoundation} from '@material/base/foundation';\nimport {EventType, SpecificEventListener} from '@material/base/types';\nimport {MDCSliderAdapter} from './adapter';\nimport {cssClasses, numbers, strings} from './constants';\n\ntype UpEventType = 'mouseup'|'pointerup'|'touchend';\ntype DownEventType = 'mousedown'|'pointerdown'|'touchstart';\ntype MoveEventType = 'mousemove'|'pointermove'|'touchmove';\ntype MouseLikeEvent = MouseEvent|PointerEvent|TouchEvent;\n\ntype MoveEventMap = {\n  readonly[K in DownEventType]: MoveEventType;\n};\n\nconst DOWN_EVENTS: DownEventType[] = ['mousedown', 'pointerdown', 'touchstart'];\nconst UP_EVENTS: UpEventType[] = ['mouseup', 'pointerup', 'touchend'];\n\nconst MOVE_EVENT_MAP: MoveEventMap = {\n  mousedown: 'mousemove',\n  pointerdown: 'pointermove',\n  touchstart: 'touchmove',\n};\n\nconst KEY_IDS = {\n  ARROW_DOWN: 'ArrowDown',\n  ARROW_LEFT: 'ArrowLeft',\n  ARROW_RIGHT: 'ArrowRight',\n  ARROW_UP: 'ArrowUp',\n  END: 'End',\n  HOME: 'Home',\n  PAGE_DOWN: 'PageDown',\n  PAGE_UP: 'PageUp',\n};\n\nexport class MDCSliderFoundation extends MDCFoundation<MDCSliderAdapter> {\n  static get cssClasses() {\n    return cssClasses;\n  }\n\n  static get strings() {\n    return strings;\n  }\n\n  static get numbers() {\n    return numbers;\n  }\n\n  static get defaultAdapter(): MDCSliderAdapter {\n    // tslint:disable:object-literal-sort-keys Methods should be in the same\n    // order as the adapter interface.\n    return {\n      hasClass: () => false,\n      addClass: () => undefined,\n      removeClass: () => undefined,\n      getAttribute: () => null,\n      setAttribute: () => undefined,\n      removeAttribute: () => undefined,\n      computeBoundingRect: () =>\n          ({top: 0, right: 0, bottom: 0, left: 0, width: 0, height: 0}),\n      getTabIndex: () => 0,\n      registerInteractionHandler: () => undefined,\n      deregisterInteractionHandler: () => undefined,\n      registerThumbContainerInteractionHandler: () => undefined,\n      deregisterThumbContainerInteractionHandler: () => undefined,\n      registerBodyInteractionHandler: () => undefined,\n      deregisterBodyInteractionHandler: () => undefined,\n      registerResizeHandler: () => undefined,\n      deregisterResizeHandler: () => undefined,\n      notifyInput: () => undefined,\n      notifyChange: () => undefined,\n      setThumbContainerStyleProperty: () => undefined,\n      setTrackStyleProperty: () => undefined,\n      setMarkerValue: () => undefined,\n      setTrackMarkers: () => undefined,\n      isRTL: () => false,\n    };\n    // tslint:enable:object-literal-sort-keys\n  }\n\n  private rect_!: ClientRect;  // assigned in layout() via init()\n\n  /**\n   * We set this to NaN since we want it to be a number, but we can't use '0' or\n   * '-1' because those could be valid tabindices set by the client code.\n   */\n  private savedTabIndex_ = NaN;\n\n  private active_ = false;\n  private inTransit_ = false;\n  private isDiscrete_ = false;\n  private hasTrackMarker_ = false;\n  private handlingThumbTargetEvt_ = false;\n  private min_ = 0;\n  private max_ = 100;\n  private step_ = 0;\n  private value_ = 0;\n  private disabled_ = false;\n  private preventFocusState_ = false;\n\n  private readonly thumbContainerPointerHandler_:\n      SpecificEventListener<DownEventType>;\n  private readonly interactionStartHandler_:\n      SpecificEventListener<DownEventType>;\n  private readonly keydownHandler_: SpecificEventListener<'keydown'>;\n  private readonly focusHandler_: SpecificEventListener<'focus'>;\n  private readonly blurHandler_: SpecificEventListener<'blur'>;\n  private readonly resizeHandler_: SpecificEventListener<'resize'>;\n\n  constructor(adapter?: Partial<MDCSliderAdapter>) {\n    super({...MDCSliderFoundation.defaultAdapter, ...adapter});\n\n    this.thumbContainerPointerHandler_ = () => this.handlingThumbTargetEvt_ =\n        true;\n    this.interactionStartHandler_ = (evt: MouseLikeEvent) =>\n        this.handleDown_(evt);\n    this.keydownHandler_ = (evt) => this.handleKeydown_(evt);\n    this.focusHandler_ = () => this.handleFocus_();\n    this.blurHandler_ = () => this.handleBlur_();\n    this.resizeHandler_ = () => this.layout();\n  }\n\n  init() {\n    this.isDiscrete_ = this.adapter_.hasClass(cssClasses.IS_DISCRETE);\n    this.hasTrackMarker_ = this.adapter_.hasClass(cssClasses.HAS_TRACK_MARKER);\n\n    DOWN_EVENTS.forEach((evtName) => {\n      this.adapter_.registerInteractionHandler(\n          evtName, this.interactionStartHandler_);\n      this.adapter_.registerThumbContainerInteractionHandler(\n          evtName, this.thumbContainerPointerHandler_);\n    });\n\n    this.adapter_.registerInteractionHandler('keydown', this.keydownHandler_);\n    this.adapter_.registerInteractionHandler('focus', this.focusHandler_);\n    this.adapter_.registerInteractionHandler('blur', this.blurHandler_);\n    this.adapter_.registerResizeHandler(this.resizeHandler_);\n\n    this.layout();\n\n    // At last step, provide a reasonable default value to discrete slider\n    if (this.isDiscrete_ && this.getStep() === 0) {\n      this.step_ = 1;\n    }\n  }\n\n  destroy() {\n    DOWN_EVENTS.forEach((evtName) => {\n      this.adapter_.deregisterInteractionHandler(\n          evtName, this.interactionStartHandler_);\n      this.adapter_.deregisterThumbContainerInteractionHandler(\n          evtName, this.thumbContainerPointerHandler_);\n    });\n\n    this.adapter_.deregisterInteractionHandler('keydown', this.keydownHandler_);\n    this.adapter_.deregisterInteractionHandler('focus', this.focusHandler_);\n    this.adapter_.deregisterInteractionHandler('blur', this.blurHandler_);\n    this.adapter_.deregisterResizeHandler(this.resizeHandler_);\n  }\n\n  setupTrackMarker() {\n    if (this.isDiscrete_ && this.hasTrackMarker_ && this.getStep() !== 0) {\n      this.adapter_.setTrackMarkers(\n          this.getStep(), this.getMax(), this.getMin());\n    }\n  }\n\n  layout() {\n    this.rect_ = this.adapter_.computeBoundingRect();\n    this.updateUIForCurrentValue_();\n  }\n\n  getValue(): number {\n    return this.value_;\n  }\n\n  setValue(value: number) {\n    this.setValue_(value, false);\n  }\n\n  getMax(): number {\n    return this.max_;\n  }\n\n  setMax(max: number) {\n    if (max < this.min_) {\n      throw new Error(\n          'Cannot set max to be less than the slider\\'s minimum value');\n    }\n    this.max_ = max;\n    this.setValue_(this.value_, false, true);\n    this.adapter_.setAttribute(strings.ARIA_VALUEMAX, String(this.max_));\n    this.setupTrackMarker();\n  }\n\n  getMin(): number {\n    return this.min_;\n  }\n\n  setMin(min: number) {\n    if (min > this.max_) {\n      throw new Error(\n          'Cannot set min to be greater than the slider\\'s maximum value');\n    }\n    this.min_ = min;\n    this.setValue_(this.value_, false, true);\n    this.adapter_.setAttribute(strings.ARIA_VALUEMIN, String(this.min_));\n    this.setupTrackMarker();\n  }\n\n  getStep(): number {\n    return this.step_;\n  }\n\n  setStep(step: number) {\n    if (step < 0) {\n      throw new Error('Step cannot be set to a negative number');\n    }\n    if (this.isDiscrete_ && (typeof (step) !== 'number' || step < 1)) {\n      step = 1;\n    }\n    this.step_ = step;\n    this.setValue_(this.value_, false, true);\n    this.setupTrackMarker();\n  }\n\n  isDisabled(): boolean {\n    return this.disabled_;\n  }\n\n  setDisabled(disabled: boolean) {\n    this.disabled_ = disabled;\n    this.toggleClass_(cssClasses.DISABLED, this.disabled_);\n    if (this.disabled_) {\n      this.savedTabIndex_ = this.adapter_.getTabIndex();\n      this.adapter_.setAttribute(strings.ARIA_DISABLED, 'true');\n      this.adapter_.removeAttribute('tabindex');\n    } else {\n      this.adapter_.removeAttribute(strings.ARIA_DISABLED);\n      if (!isNaN(this.savedTabIndex_)) {\n        this.adapter_.setAttribute('tabindex', String(this.savedTabIndex_));\n      }\n    }\n  }\n\n  /**\n   * Called when the user starts interacting with the slider\n   */\n  private handleDown_(downEvent: MouseLikeEvent) {\n    if (this.disabled_) {\n      return;\n    }\n\n    this.preventFocusState_ = true;\n    this.setInTransit_(!this.handlingThumbTargetEvt_);\n    this.handlingThumbTargetEvt_ = false;\n    this.setActive_(true);\n\n    const moveHandler = (moveEvent: MouseLikeEvent) => {\n      this.handleMove_(moveEvent);\n    };\n\n    const moveEventType = MOVE_EVENT_MAP[downEvent.type as DownEventType];\n\n    // Note: upHandler is [de]registered on ALL potential pointer-related\n    // release event types, since some browsers do not always fire these\n    // consistently in pairs. (See\n    // https://github.com/material-components/material-components-web/issues/1192)\n    const upHandler = () => {\n      this.handleUp_();\n      this.adapter_.deregisterBodyInteractionHandler(\n          moveEventType, moveHandler);\n      UP_EVENTS.forEach(\n          (evtName) => this.adapter_.deregisterBodyInteractionHandler(\n              evtName, upHandler));\n    };\n\n    this.adapter_.registerBodyInteractionHandler(moveEventType, moveHandler);\n    UP_EVENTS.forEach(\n        (evtName) =>\n            this.adapter_.registerBodyInteractionHandler(evtName, upHandler));\n    this.setValueFromEvt_(downEvent);\n  }\n\n  /**\n   * Called when the user moves the slider\n   */\n  private handleMove_(evt: MouseLikeEvent) {\n    evt.preventDefault();\n    this.setValueFromEvt_(evt);\n  }\n\n  /**\n   * Called when the user's interaction with the slider ends\n   */\n  private handleUp_() {\n    this.setActive_(false);\n    this.adapter_.notifyChange();\n  }\n\n  /**\n   * Returns the clientX of the event\n   */\n  private getClientX_(evt: MouseLikeEvent): number {\n    if ((evt as TouchEvent).targetTouches &&\n        (evt as TouchEvent).targetTouches.length > 0) {\n      return (evt as TouchEvent).targetTouches[0].clientX;\n    }\n    return (evt as MouseEvent).clientX;\n  }\n\n  /**\n   * Sets the slider value from an event\n   */\n  private setValueFromEvt_(evt: MouseLikeEvent) {\n    const clientX = this.getClientX_(evt);\n    const value = this.computeValueFromClientX_(clientX);\n    this.setValue_(value, true);\n  }\n\n  /**\n   * Computes the new value from the clientX position\n   */\n  private computeValueFromClientX_(clientX: number): number {\n    const {max_: max, min_: min} = this;\n    const xPos = clientX - this.rect_.left;\n    let pctComplete = xPos / this.rect_.width;\n    if (this.adapter_.isRTL()) {\n      pctComplete = 1 - pctComplete;\n    }\n    // Fit the percentage complete between the range [min,max]\n    // by remapping from [0, 1] to [min, min+(max-min)].\n    return min + pctComplete * (max - min);\n  }\n\n  /**\n   * Handles keydown events\n   */\n  private handleKeydown_(evt: KeyboardEvent) {\n    const keyId = this.getKeyId_(evt);\n    const value = this.getValueForKeyId_(keyId);\n    if (isNaN(value)) {\n      return;\n    }\n\n    // Prevent page from scrolling due to key presses that would normally scroll\n    // the page\n    evt.preventDefault();\n    this.adapter_.addClass(cssClasses.FOCUS);\n    this.setValue_(value, true);\n    this.adapter_.notifyChange();\n  }\n\n  /**\n   * Returns the computed name of the event\n   */\n  private getKeyId_(kbdEvt: KeyboardEvent): string {\n    if (kbdEvt.key === KEY_IDS.ARROW_LEFT || kbdEvt.keyCode === 37) {\n      return KEY_IDS.ARROW_LEFT;\n    }\n    if (kbdEvt.key === KEY_IDS.ARROW_RIGHT || kbdEvt.keyCode === 39) {\n      return KEY_IDS.ARROW_RIGHT;\n    }\n    if (kbdEvt.key === KEY_IDS.ARROW_UP || kbdEvt.keyCode === 38) {\n      return KEY_IDS.ARROW_UP;\n    }\n    if (kbdEvt.key === KEY_IDS.ARROW_DOWN || kbdEvt.keyCode === 40) {\n      return KEY_IDS.ARROW_DOWN;\n    }\n    if (kbdEvt.key === KEY_IDS.HOME || kbdEvt.keyCode === 36) {\n      return KEY_IDS.HOME;\n    }\n    if (kbdEvt.key === KEY_IDS.END || kbdEvt.keyCode === 35) {\n      return KEY_IDS.END;\n    }\n    if (kbdEvt.key === KEY_IDS.PAGE_UP || kbdEvt.keyCode === 33) {\n      return KEY_IDS.PAGE_UP;\n    }\n    if (kbdEvt.key === KEY_IDS.PAGE_DOWN || kbdEvt.keyCode === 34) {\n      return KEY_IDS.PAGE_DOWN;\n    }\n    return '';\n  }\n\n  /**\n   * Computes the value given a keyboard key ID\n   */\n  private getValueForKeyId_(keyId: string): number {\n    const {max_: max, min_: min, step_: step} = this;\n    let delta = step || (max - min) / 100;\n    const valueNeedsToBeFlipped = this.adapter_.isRTL() &&\n        (keyId === KEY_IDS.ARROW_LEFT || keyId === KEY_IDS.ARROW_RIGHT);\n    if (valueNeedsToBeFlipped) {\n      delta = -delta;\n    }\n\n    switch (keyId) {\n      case KEY_IDS.ARROW_LEFT:\n      case KEY_IDS.ARROW_DOWN:\n        return this.value_ - delta;\n      case KEY_IDS.ARROW_RIGHT:\n      case KEY_IDS.ARROW_UP:\n        return this.value_ + delta;\n      case KEY_IDS.HOME:\n        return this.min_;\n      case KEY_IDS.END:\n        return this.max_;\n      case KEY_IDS.PAGE_UP:\n        return this.value_ + delta * numbers.PAGE_FACTOR;\n      case KEY_IDS.PAGE_DOWN:\n        return this.value_ - delta * numbers.PAGE_FACTOR;\n      default:\n        return NaN;\n    }\n  }\n\n  private handleFocus_() {\n    if (this.preventFocusState_) {\n      return;\n    }\n    this.adapter_.addClass(cssClasses.FOCUS);\n  }\n\n  private handleBlur_() {\n    this.preventFocusState_ = false;\n    this.adapter_.removeClass(cssClasses.FOCUS);\n  }\n\n  /**\n   * Sets the value of the slider\n   */\n  private setValue_(value: number, shouldFireInput: boolean, force = false) {\n    if (value === this.value_ && !force) {\n      return;\n    }\n\n    const {min_: min, max_: max} = this;\n    const valueSetToBoundary = value === min || value === max;\n    if (this.step_ && !valueSetToBoundary) {\n      value = this.quantize_(value);\n    }\n    if (value < min) {\n      value = min;\n    } else if (value > max) {\n      value = max;\n    }\n    value = value || 0; // coerce -0 to 0\n    this.value_ = value;\n    this.adapter_.setAttribute(strings.ARIA_VALUENOW, String(this.value_));\n    this.updateUIForCurrentValue_();\n\n    if (shouldFireInput) {\n      this.adapter_.notifyInput();\n      if (this.isDiscrete_) {\n        this.adapter_.setMarkerValue(value);\n      }\n    }\n  }\n\n  /**\n   * Calculates the quantized value\n   */\n  private quantize_(value: number): number {\n    const numSteps = Math.round(value / this.step_);\n    return numSteps * this.step_;\n  }\n\n  private updateUIForCurrentValue_() {\n    const {max_: max, min_: min, value_: value} = this;\n    const pctComplete = (value - min) / (max - min);\n    let translatePx = pctComplete * this.rect_.width;\n    if (this.adapter_.isRTL()) {\n      translatePx = this.rect_.width - translatePx;\n    }\n\n    const transformProp = getCorrectPropertyName(window, 'transform');\n    const transitionendEvtName =\n        getCorrectEventName(window, 'transitionend') as EventType;\n\n    if (this.inTransit_) {\n      const onTransitionEnd = () => {\n        this.setInTransit_(false);\n        this.adapter_.deregisterThumbContainerInteractionHandler(\n            transitionendEvtName, onTransitionEnd);\n      };\n      this.adapter_.registerThumbContainerInteractionHandler(\n          transitionendEvtName, onTransitionEnd);\n    }\n\n    requestAnimationFrame(() => {\n      // NOTE(traviskaufman): It would be nice to use calc() here,\n      // but IE cannot handle calcs in transforms correctly.\n      // See: https://goo.gl/NC2itk\n      // Also note that the -50% offset is used to center the slider thumb.\n      this.adapter_.setThumbContainerStyleProperty(\n          transformProp, `translateX(${translatePx}px) translateX(-50%)`);\n      this.adapter_.setTrackStyleProperty(\n          transformProp, `scaleX(${pctComplete})`);\n    });\n  }\n\n  /**\n   * Toggles the active state of the slider\n   */\n  private setActive_(active: boolean) {\n    this.active_ = active;\n    this.toggleClass_(cssClasses.ACTIVE, this.active_);\n  }\n\n  /**\n   * Toggles the inTransit state of the slider\n   */\n  private setInTransit_(inTransit: boolean) {\n    this.inTransit_ = inTransit;\n    this.toggleClass_(cssClasses.IN_TRANSIT, this.inTransit_);\n  }\n\n  /**\n   * Conditionally adds or removes a class based on shouldBePresent\n   */\n  private toggleClass_(className: string, shouldBePresent: boolean) {\n    if (shouldBePresent) {\n      this.adapter_.addClass(className);\n    } else {\n      this.adapter_.removeClass(className);\n    }\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility\n// with MDC Web v0.44.0 and earlier.\nexport default MDCSliderFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport * from './adapter';\nexport * from './component';\nexport * from './constants';\nexport * from './foundation';\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {SpecificEventListener} from '@material/base/types';\nimport {closest} from '@material/dom/ponyfill';\nimport {MDCSnackbarAdapter} from './adapter';\nimport {strings} from './constants';\nimport {MDCSnackbarFoundation} from './foundation';\nimport {MDCSnackbarAnnouncer, MDCSnackbarAnnouncerFactory, MDCSnackbarCloseEventDetail} from './types';\nimport * as util from './util';\n\nconst {\n  SURFACE_SELECTOR, LABEL_SELECTOR, ACTION_SELECTOR, DISMISS_SELECTOR,\n  OPENING_EVENT, OPENED_EVENT, CLOSING_EVENT, CLOSED_EVENT,\n} = strings;\n\nexport class MDCSnackbar extends MDCComponent<MDCSnackbarFoundation> {\n  static attachTo(root: Element) {\n    return new MDCSnackbar(root);\n  }\n\n  private announce_!: MDCSnackbarAnnouncer; // assigned in initialize()\n\n  private actionEl_!: Element; // assigned in initialSyncWithDOM()\n  private labelEl_!: Element; // assigned in initialSyncWithDOM()\n  private surfaceEl_!: Element; // assigned in initialSyncWithDOM()\n\n  private handleKeyDown_!: SpecificEventListener<'keydown'>; // assigned in initialSyncWithDOM()\n  private handleSurfaceClick_!: SpecificEventListener<'click'>; // assigned in initialSyncWithDOM()\n\n  initialize(announcerFactory: MDCSnackbarAnnouncerFactory = () => util.announce) {\n    this.announce_ = announcerFactory();\n  }\n\n  initialSyncWithDOM() {\n    this.surfaceEl_ = this.root_.querySelector(SURFACE_SELECTOR)!;\n    this.labelEl_ = this.root_.querySelector(LABEL_SELECTOR)!;\n    this.actionEl_ = this.root_.querySelector(ACTION_SELECTOR)!;\n\n    this.handleKeyDown_ = (evt) => this.foundation_.handleKeyDown(evt);\n    this.handleSurfaceClick_ = (evt) => {\n      const target = evt.target as Element;\n      if (this.isActionButton_(target)) {\n        this.foundation_.handleActionButtonClick(evt);\n      } else if (this.isActionIcon_(target)) {\n        this.foundation_.handleActionIconClick(evt);\n      }\n    };\n\n    this.registerKeyDownHandler_(this.handleKeyDown_);\n    this.registerSurfaceClickHandler_(this.handleSurfaceClick_);\n  }\n\n  destroy() {\n    super.destroy();\n    this.deregisterKeyDownHandler_(this.handleKeyDown_);\n    this.deregisterSurfaceClickHandler_(this.handleSurfaceClick_);\n  }\n\n  open() {\n    this.foundation_.open();\n  }\n\n  /**\n   * @param reason Why the snackbar was closed. Value will be passed to CLOSING_EVENT and CLOSED_EVENT via the\n   *     `event.detail.reason` property. Standard values are REASON_ACTION and REASON_DISMISS, but custom\n   *     client-specific values may also be used if desired.\n   */\n  close(reason = '') {\n    this.foundation_.close(reason);\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    const adapter: MDCSnackbarAdapter = {\n      addClass: (className) => this.root_.classList.add(className),\n      announce: () => this.announce_(this.labelEl_),\n      notifyClosed: (reason) => this.emit<MDCSnackbarCloseEventDetail>(CLOSED_EVENT, reason ? {reason} : {}),\n      notifyClosing: (reason) => this.emit<MDCSnackbarCloseEventDetail>(CLOSING_EVENT, reason ? {reason} : {}),\n      notifyOpened: () => this.emit(OPENED_EVENT, {}),\n      notifyOpening: () => this.emit(OPENING_EVENT, {}),\n      removeClass: (className) => this.root_.classList.remove(className),\n    };\n    return new MDCSnackbarFoundation(adapter);\n  }\n\n  get timeoutMs(): number {\n    return this.foundation_.getTimeoutMs();\n  }\n\n  set timeoutMs(timeoutMs: number) {\n    this.foundation_.setTimeoutMs(timeoutMs);\n  }\n\n  get closeOnEscape(): boolean {\n    return this.foundation_.getCloseOnEscape();\n  }\n\n  set closeOnEscape(closeOnEscape: boolean) {\n    this.foundation_.setCloseOnEscape(closeOnEscape);\n  }\n\n  get isOpen(): boolean {\n    return this.foundation_.isOpen();\n  }\n\n  get labelText(): string {\n    // This property only returns null if the node is a document, DOCTYPE, or notation.\n    // On Element nodes, it always returns a string.\n    return this.labelEl_.textContent!;\n  }\n\n  set labelText(labelText: string) {\n    this.labelEl_.textContent = labelText;\n  }\n\n  get actionButtonText(): string {\n    return this.actionEl_.textContent!;\n  }\n\n  set actionButtonText(actionButtonText: string) {\n    this.actionEl_.textContent = actionButtonText;\n  }\n\n  private registerKeyDownHandler_(handler: SpecificEventListener<'keydown'>) {\n    this.listen('keydown', handler);\n  }\n\n  private deregisterKeyDownHandler_(handler: SpecificEventListener<'keydown'>) {\n    this.unlisten('keydown', handler);\n  }\n\n  private registerSurfaceClickHandler_(handler: SpecificEventListener<'click'>) {\n    this.surfaceEl_.addEventListener('click', handler as EventListener);\n  }\n\n  private deregisterSurfaceClickHandler_(handler: SpecificEventListener<'click'>) {\n    this.surfaceEl_.removeEventListener('click', handler as EventListener);\n  }\n\n  private isActionButton_(target: Element): boolean {\n    return Boolean(closest(target, ACTION_SELECTOR));\n  }\n\n  private isActionIcon_(target: Element): boolean {\n    return Boolean(closest(target, DISMISS_SELECTOR));\n  }\n}\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nconst cssClasses = {\n  CLOSING: 'mdc-snackbar--closing',\n  OPEN: 'mdc-snackbar--open',\n  OPENING: 'mdc-snackbar--opening',\n};\n\nconst strings = {\n  ACTION_SELECTOR: '.mdc-snackbar__action',\n  ARIA_LIVE_LABEL_TEXT_ATTR: 'data-mdc-snackbar-label-text',\n  CLOSED_EVENT: 'MDCSnackbar:closed',\n  CLOSING_EVENT: 'MDCSnackbar:closing',\n  DISMISS_SELECTOR: '.mdc-snackbar__dismiss',\n  LABEL_SELECTOR: '.mdc-snackbar__label',\n  OPENED_EVENT: 'MDCSnackbar:opened',\n  OPENING_EVENT: 'MDCSnackbar:opening',\n  REASON_ACTION: 'action',\n  REASON_DISMISS: 'dismiss',\n  SURFACE_SELECTOR: '.mdc-snackbar__surface',\n};\n\nconst numbers = {\n  DEFAULT_AUTO_DISMISS_TIMEOUT_MS: 5000,\n  INDETERMINATE: -1,\n  MAX_AUTO_DISMISS_TIMEOUT_MS: 10000,\n  MIN_AUTO_DISMISS_TIMEOUT_MS: 4000,\n\n  // These variables need to be kept in sync with the values in _variables.scss.\n  SNACKBAR_ANIMATION_CLOSE_TIME_MS: 75,\n  SNACKBAR_ANIMATION_OPEN_TIME_MS: 150,\n\n  /**\n   * Number of milliseconds to wait between temporarily clearing the label text\n   * in the DOM and subsequently restoring it. This is necessary to force IE 11\n   * to pick up the `aria-live` content change and announce it to the user.\n   */\n  ARIA_LIVE_DELAY_MS: 1000,\n};\n\nexport {cssClasses, strings, numbers};\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {MDCSnackbarAdapter} from './adapter';\nimport {cssClasses, numbers, strings} from './constants';\n\nconst {OPENING, OPEN, CLOSING} = cssClasses;\nconst {REASON_ACTION, REASON_DISMISS} = strings;\n\nexport class MDCSnackbarFoundation extends MDCFoundation<MDCSnackbarAdapter> {\n  static get cssClasses() {\n    return cssClasses;\n  }\n\n  static get strings() {\n    return strings;\n  }\n\n  static get numbers() {\n    return numbers;\n  }\n\n  static get defaultAdapter(): MDCSnackbarAdapter {\n    return {\n      addClass: () => undefined,\n      announce: () => undefined,\n      notifyClosed: () => undefined,\n      notifyClosing: () => undefined,\n      notifyOpened: () => undefined,\n      notifyOpening: () => undefined,\n      removeClass: () => undefined,\n    };\n  }\n\n  private isOpen_ = false;\n  private animationFrame_ = 0;\n  private animationTimer_ = 0;\n  private autoDismissTimer_ = 0;\n  private autoDismissTimeoutMs_ = numbers.DEFAULT_AUTO_DISMISS_TIMEOUT_MS;\n  private closeOnEscape_ = true;\n\n  constructor(adapter?: Partial<MDCSnackbarAdapter>) {\n    super({...MDCSnackbarFoundation.defaultAdapter, ...adapter});\n  }\n\n  destroy() {\n    this.clearAutoDismissTimer_();\n    cancelAnimationFrame(this.animationFrame_);\n    this.animationFrame_ = 0;\n    clearTimeout(this.animationTimer_);\n    this.animationTimer_ = 0;\n    this.adapter_.removeClass(OPENING);\n    this.adapter_.removeClass(OPEN);\n    this.adapter_.removeClass(CLOSING);\n  }\n\n  open() {\n    this.clearAutoDismissTimer_();\n    this.isOpen_ = true;\n    this.adapter_.notifyOpening();\n    this.adapter_.removeClass(CLOSING);\n    this.adapter_.addClass(OPENING);\n    this.adapter_.announce();\n\n    // Wait a frame once display is no longer \"none\", to establish basis for animation\n    this.runNextAnimationFrame_(() => {\n      this.adapter_.addClass(OPEN);\n\n      this.animationTimer_ = setTimeout(() => {\n        const timeoutMs = this.getTimeoutMs();\n        this.handleAnimationTimerEnd_();\n        this.adapter_.notifyOpened();\n        if (timeoutMs !== numbers.INDETERMINATE) {\n          this.autoDismissTimer_ = setTimeout(() => {\n            this.close(REASON_DISMISS);\n          }, timeoutMs);\n        }\n              }, numbers.SNACKBAR_ANIMATION_OPEN_TIME_MS);\n    });\n  }\n\n  /**\n   * @param reason Why the snackbar was closed. Value will be passed to CLOSING_EVENT and CLOSED_EVENT via the\n   *     `event.detail.reason` property. Standard values are REASON_ACTION and REASON_DISMISS, but custom\n   *     client-specific values may also be used if desired.\n   */\n  close(reason = '') {\n    if (!this.isOpen_) {\n      // Avoid redundant close calls (and events), e.g. repeated interactions as the snackbar is animating closed\n      return;\n    }\n\n    cancelAnimationFrame(this.animationFrame_);\n    this.animationFrame_ = 0;\n    this.clearAutoDismissTimer_();\n\n    this.isOpen_ = false;\n    this.adapter_.notifyClosing(reason);\n    this.adapter_.addClass(cssClasses.CLOSING);\n    this.adapter_.removeClass(cssClasses.OPEN);\n    this.adapter_.removeClass(cssClasses.OPENING);\n\n    clearTimeout(this.animationTimer_);\n    this.animationTimer_ = setTimeout(() => {\n      this.handleAnimationTimerEnd_();\n      this.adapter_.notifyClosed(reason);\n    }, numbers.SNACKBAR_ANIMATION_CLOSE_TIME_MS);\n  }\n\n  isOpen(): boolean {\n    return this.isOpen_;\n  }\n\n  getTimeoutMs(): number {\n    return this.autoDismissTimeoutMs_;\n  }\n\n  setTimeoutMs(timeoutMs: number) {\n    // Use shorter variable names to make the code more readable\n    const minValue = numbers.MIN_AUTO_DISMISS_TIMEOUT_MS;\n    const maxValue = numbers.MAX_AUTO_DISMISS_TIMEOUT_MS;\n    const indeterminateValue = numbers.INDETERMINATE;\n\n    if (timeoutMs === numbers.INDETERMINATE || (timeoutMs <= maxValue && timeoutMs >= minValue)) {\n      this.autoDismissTimeoutMs_ = timeoutMs;\n    } else {\n      throw new Error(`\n        timeoutMs must be an integer in the range ${minValue}–${maxValue}\n        (or ${indeterminateValue} to disable), but got '${timeoutMs}'`);\n    }\n  }\n\n  getCloseOnEscape(): boolean {\n    return this.closeOnEscape_;\n  }\n\n  setCloseOnEscape(closeOnEscape: boolean) {\n    this.closeOnEscape_ = closeOnEscape;\n  }\n\n  handleKeyDown(evt: KeyboardEvent) {\n    const isEscapeKey = evt.key === 'Escape' || evt.keyCode === 27;\n    if (isEscapeKey && this.getCloseOnEscape()) {\n      this.close(REASON_DISMISS);\n    }\n  }\n\n  handleActionButtonClick(_evt: MouseEvent) {\n    this.close(REASON_ACTION);\n  }\n\n  handleActionIconClick(_evt: MouseEvent) {\n    this.close(REASON_DISMISS);\n  }\n\n  private clearAutoDismissTimer_() {\n    clearTimeout(this.autoDismissTimer_);\n    this.autoDismissTimer_ = 0;\n  }\n\n  private handleAnimationTimerEnd_() {\n    this.animationTimer_ = 0;\n    this.adapter_.removeClass(cssClasses.OPENING);\n    this.adapter_.removeClass(cssClasses.CLOSING);\n  }\n\n  /**\n   * Runs the given logic on the next animation frame, using setTimeout to factor in Firefox reflow behavior.\n   */\n  private runNextAnimationFrame_(callback: () => void) {\n    cancelAnimationFrame(this.animationFrame_);\n    this.animationFrame_ = requestAnimationFrame(() => {\n      this.animationFrame_ = 0;\n      clearTimeout(this.animationTimer_);\n      this.animationTimer_ = setTimeout(callback, 0);\n    });\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCSnackbarFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport * as util from './util';\n\nexport {util};\nexport * from './adapter';\nexport * from './component';\nexport * from './constants';\nexport * from './foundation';\nexport * from './types';\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {numbers, strings} from './constants';\n\nconst {ARIA_LIVE_DELAY_MS} = numbers;\nconst {ARIA_LIVE_LABEL_TEXT_ATTR} = strings;\n\nfunction announce(ariaEl: Element, labelEl: Element = ariaEl) {\n  const priority = ariaEl.getAttribute('aria-live');\n\n  // Trim text to ignore `&nbsp;` (see below).\n  // textContent is only null if the node is a document, DOCTYPE, or notation.\n  const labelText = labelEl.textContent!.trim();\n  if (!labelText || !priority) {\n    return;\n  }\n\n  // Temporarily disable `aria-live` to prevent JAWS+Firefox from announcing the message twice.\n  ariaEl.setAttribute('aria-live', 'off');\n\n  // Temporarily clear `textContent` to force a DOM mutation event that will be detected by screen readers.\n  // `aria-live` elements are only announced when the element's `textContent` *changes*, so snackbars\n  // sent to the browser in the initial HTML response won't be read unless we clear the element's `textContent` first.\n  // Similarly, displaying the same snackbar message twice in a row doesn't trigger a DOM mutation event,\n  // so screen readers won't announce the second message unless we first clear `textContent`.\n  //\n  // We have to clear the label text two different ways to make it work in all browsers and screen readers:\n  //\n  //   1. `textContent = ''` is required for IE11 + JAWS\n  //   2. `innerHTML = '&nbsp;'` is required for Chrome + JAWS and NVDA\n  //\n  // All other browser/screen reader combinations support both methods.\n  //\n  // The wrapper `<span>` visually hides the space character so that it doesn't cause jank when added/removed.\n  // N.B.: Setting `position: absolute`, `opacity: 0`, or `height: 0` prevents Chrome from detecting the DOM change.\n  //\n  // This technique has been tested in:\n  //\n  //   * JAWS 2019:\n  //       - Chrome 70\n  //       - Firefox 60 (ESR)\n  //       - IE 11\n  //   * NVDA 2018:\n  //       - Chrome 70\n  //       - Firefox 60 (ESR)\n  //       - IE 11\n  //   * ChromeVox 53\n  labelEl.textContent = '';\n  labelEl.innerHTML = '<span style=\"display: inline-block; width: 0; height: 1px;\">&nbsp;</span>';\n\n  // Prevent visual jank by temporarily displaying the label text in the ::before pseudo-element.\n  // CSS generated content is normally announced by screen readers\n  // (except in IE 11; see https://tink.uk/accessibility-support-for-css-generated-content/);\n  // however, `aria-live` is turned off, so this DOM update will be ignored by screen readers.\n  labelEl.setAttribute(ARIA_LIVE_LABEL_TEXT_ATTR, labelText);\n\n  setTimeout(() => {\n    // Allow screen readers to announce changes to the DOM again.\n    ariaEl.setAttribute('aria-live', priority);\n\n    // Remove the message from the ::before pseudo-element.\n    labelEl.removeAttribute(ARIA_LIVE_LABEL_TEXT_ATTR);\n\n    // Restore the original label text, which will be announced by screen readers.\n    labelEl.textContent = labelText;\n  }, ARIA_LIVE_DELAY_MS);\n}\n\nexport {announce};\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {EventType, SpecificEventListener} from '@material/base/types';\nimport {applyPassive} from '@material/dom/events';\nimport {matches} from '@material/dom/ponyfill';\nimport {MDCRippleAdapter} from '@material/ripple/adapter';\nimport {MDCRipple} from '@material/ripple/component';\nimport {MDCRippleFoundation} from '@material/ripple/foundation';\nimport {MDCRippleCapableSurface} from '@material/ripple/types';\nimport {MDCSwitchAdapter} from './adapter';\nimport {MDCSwitchFoundation} from './foundation';\n\nexport class MDCSwitch extends MDCComponent<MDCSwitchFoundation> implements MDCRippleCapableSurface {\n  static attachTo(root: HTMLElement) {\n    return new MDCSwitch(root);\n  }\n\n  // Public visibility for this property is required by MDCRippleCapableSurface.\n  root_!: Element; // assigned in MDCComponent constructor\n\n  private readonly ripple_ = this.createRipple_();\n\n  // Initialized in `initialSyncWithDOM`.\n  private changeHandler_!: EventListener;\n\n  destroy() {\n    super.destroy();\n    this.ripple_.destroy();\n    this.nativeControl_.removeEventListener('change', this.changeHandler_);\n  }\n\n  initialSyncWithDOM() {\n    this.changeHandler_ = (...args) => this.foundation_.handleChange(...args);\n    this.nativeControl_.addEventListener('change', this.changeHandler_);\n\n    // Sometimes the checked state of the input element is saved in the history.\n    // The switch styling should match the checked state of the input element.\n    // Do an initial sync between the native control and the foundation.\n    this.checked = this.checked;\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    const adapter: MDCSwitchAdapter = {\n      addClass: (className) => this.root_.classList.add(className),\n      removeClass: (className) => this.root_.classList.remove(className),\n      setNativeControlChecked: (checked) => this.nativeControl_.checked = checked,\n      setNativeControlDisabled: (disabled) => this.nativeControl_.disabled = disabled,\n      setNativeControlAttr: (attr, value) => this.nativeControl_.setAttribute(attr, value),\n    };\n    return new MDCSwitchFoundation(adapter);\n  }\n\n  get ripple() {\n    return this.ripple_;\n  }\n\n  get checked() {\n    return this.nativeControl_.checked;\n  }\n\n  set checked(checked) {\n    this.foundation_.setChecked(checked);\n  }\n\n  get disabled() {\n    return this.nativeControl_.disabled;\n  }\n\n  set disabled(disabled) {\n    this.foundation_.setDisabled(disabled);\n  }\n\n  private createRipple_(): MDCRipple {\n    const {RIPPLE_SURFACE_SELECTOR} = MDCSwitchFoundation.strings;\n    const rippleSurface = this.root_.querySelector(RIPPLE_SURFACE_SELECTOR) as HTMLElement;\n\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    const adapter: MDCRippleAdapter = {\n      ...MDCRipple.createAdapter(this),\n      addClass: (className: string) => rippleSurface.classList.add(className),\n      computeBoundingRect: () => rippleSurface.getBoundingClientRect(),\n      deregisterInteractionHandler: <K extends EventType>(\n          evtType: K, handler: SpecificEventListener<K>) => {\n        this.nativeControl_.removeEventListener(evtType, handler, applyPassive());\n      },\n      isSurfaceActive: () => matches(this.nativeControl_, ':active'),\n      isUnbounded: () => true,\n      registerInteractionHandler: <K extends EventType>(\n          evtType: K, handler: SpecificEventListener<K>) => {\n        this.nativeControl_.addEventListener(evtType, handler, applyPassive());\n      },\n      removeClass: (className: string) => {\n        rippleSurface.classList.remove(className);\n      },\n      updateCssVariable: (varName: string, value: string) => {\n        rippleSurface.style.setProperty(varName, value);\n      },\n    };\n    return new MDCRipple(this.root_, new MDCRippleFoundation(adapter));\n  }\n\n  private get nativeControl_() {\n    const {NATIVE_CONTROL_SELECTOR} = MDCSwitchFoundation.strings;\n    return this.root_.querySelector(NATIVE_CONTROL_SELECTOR) as HTMLInputElement;\n  }\n}\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\n/** CSS classes used by the switch. */\nconst cssClasses = {\n  /** Class used for a switch that is in the \"checked\" (on) position. */\n  CHECKED: 'mdc-switch--checked',\n  /** Class used for a switch that is disabled. */\n  DISABLED: 'mdc-switch--disabled',\n};\n\n/** String constants used by the switch. */\nconst strings = {\n  /** Aria attribute for checked or unchecked state of switch */\n  ARIA_CHECKED_ATTR: 'aria-checked',\n  /** A CSS selector used to locate the native HTML control for the switch.  */\n  NATIVE_CONTROL_SELECTOR: '.mdc-switch__native-control',\n  /** A CSS selector used to locate the ripple surface element for the switch. */\n  RIPPLE_SURFACE_SELECTOR: '.mdc-switch__thumb-underlay',\n};\n\nexport {cssClasses, strings};\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {MDCSwitchAdapter} from './adapter';\nimport {cssClasses, strings} from './constants';\n\nexport class MDCSwitchFoundation extends MDCFoundation<MDCSwitchAdapter> {\n  /** The string constants used by the switch. */\n  static get strings() {\n    return strings;\n  }\n\n  /** The CSS classes used by the switch. */\n  static get cssClasses() {\n    return cssClasses;\n  }\n\n  /** The default Adapter for the switch. */\n  static get defaultAdapter(): MDCSwitchAdapter {\n    return {\n      addClass: () => undefined,\n      removeClass: () => undefined,\n      setNativeControlChecked: () => undefined,\n      setNativeControlDisabled: () => undefined,\n      setNativeControlAttr: () => undefined,\n    };\n  }\n\n  constructor(adapter?: Partial<MDCSwitchAdapter>) {\n    super({...MDCSwitchFoundation.defaultAdapter, ...adapter});\n  }\n\n  /** Sets the checked state of the switch. */\n  setChecked(checked: boolean) {\n    this.adapter_.setNativeControlChecked(checked);\n    this.updateAriaChecked_(checked);\n    this.updateCheckedStyling_(checked);\n  }\n\n  /** Sets the disabled state of the switch. */\n  setDisabled(disabled: boolean) {\n    this.adapter_.setNativeControlDisabled(disabled);\n    if (disabled) {\n      this.adapter_.addClass(cssClasses.DISABLED);\n    } else {\n      this.adapter_.removeClass(cssClasses.DISABLED);\n    }\n  }\n\n  /** Handles the change event for the switch native control. */\n  handleChange(evt: Event) {\n    const nativeControl = evt.target as HTMLInputElement;\n    this.updateAriaChecked_(nativeControl.checked);\n    this.updateCheckedStyling_(nativeControl.checked);\n  }\n\n  /** Updates the styling of the switch based on its checked state. */\n  private updateCheckedStyling_(checked: boolean) {\n    if (checked) {\n      this.adapter_.addClass(cssClasses.CHECKED);\n    } else {\n      this.adapter_.removeClass(cssClasses.CHECKED);\n    }\n  }\n\n  private updateAriaChecked_(checked: boolean) {\n    this.adapter_.setNativeControlAttr(\n      strings.ARIA_CHECKED_ATTR, `${!!checked}`);\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCSwitchFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport * from './adapter';\nexport * from './component';\nexport * from './constants';\nexport * from './foundation';\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {CustomEventListener, SpecificEventListener} from '@material/base/types';\nimport {MDCTabScroller, MDCTabScrollerFactory} from '@material/tab-scroller/component';\nimport {MDCTab, MDCTabFactory} from '@material/tab/component';\nimport {MDCTabFoundation} from '@material/tab/foundation';\nimport {MDCTabInteractionEvent} from '@material/tab/types';\nimport {MDCTabBarAdapter} from './adapter';\nimport {MDCTabBarFoundation} from './foundation';\nimport {MDCTabBarActivatedEventDetail} from './types';\n\nconst {strings} = MDCTabBarFoundation;\n\nlet tabIdCounter = 0;\n\nexport class MDCTabBar extends MDCComponent<MDCTabBarFoundation> {\n  static attachTo(root: Element): MDCTabBar {\n    return new MDCTabBar(root);\n  }\n\n  private tabList_!: MDCTab[]; // assigned in initialize()\n  private tabScroller_!: MDCTabScroller | null; // assigned in initialize()\n  private handleTabInteraction_!: CustomEventListener<MDCTabInteractionEvent>; // assigned in initialSyncWithDOM()\n  private handleKeyDown_!: SpecificEventListener<'keydown'>; // assigned in initialSyncWithDOM()\n\n  set focusOnActivate(focusOnActivate: boolean) {\n    this.tabList_.forEach((tab) => tab.focusOnActivate = focusOnActivate);\n  }\n\n  set useAutomaticActivation(useAutomaticActivation: boolean) {\n    this.foundation_.setUseAutomaticActivation(useAutomaticActivation);\n  }\n\n  initialize(\n      tabFactory: MDCTabFactory = (el) => new MDCTab(el),\n      tabScrollerFactory: MDCTabScrollerFactory = (el) => new MDCTabScroller(el),\n  ) {\n    this.tabList_ = this.instantiateTabs_(tabFactory);\n    this.tabScroller_ = this.instantiateTabScroller_(tabScrollerFactory);\n  }\n\n  initialSyncWithDOM() {\n    this.handleTabInteraction_ = (evt) => this.foundation_.handleTabInteraction(evt);\n    this.handleKeyDown_ = (evt) => this.foundation_.handleKeyDown(evt);\n\n    this.listen(MDCTabFoundation.strings.INTERACTED_EVENT, this.handleTabInteraction_);\n    this.listen('keydown', this.handleKeyDown_);\n\n    for (let i = 0; i < this.tabList_.length; i++) {\n      if (this.tabList_[i].active) {\n        this.scrollIntoView(i);\n        break;\n      }\n    }\n  }\n\n  destroy() {\n    super.destroy();\n    this.unlisten(MDCTabFoundation.strings.INTERACTED_EVENT, this.handleTabInteraction_);\n    this.unlisten('keydown', this.handleKeyDown_);\n    this.tabList_.forEach((tab) => tab.destroy());\n\n    if (this.tabScroller_) {\n      this.tabScroller_.destroy();\n    }\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    const adapter: MDCTabBarAdapter = {\n      scrollTo: (scrollX) => this.tabScroller_!.scrollTo(scrollX),\n      incrementScroll: (scrollXIncrement) => this.tabScroller_!.incrementScroll(scrollXIncrement),\n      getScrollPosition: () => this.tabScroller_!.getScrollPosition(),\n      getScrollContentWidth: () => this.tabScroller_!.getScrollContentWidth(),\n      getOffsetWidth: () => (this.root_ as HTMLElement).offsetWidth,\n      isRTL: () => window.getComputedStyle(this.root_).getPropertyValue('direction') === 'rtl',\n      setActiveTab: (index) => this.foundation_.activateTab(index),\n      activateTabAtIndex: (index, clientRect) => this.tabList_[index].activate(clientRect),\n      deactivateTabAtIndex: (index) => this.tabList_[index].deactivate(),\n      focusTabAtIndex: (index) => this.tabList_[index].focus(),\n      getTabIndicatorClientRectAtIndex: (index) => this.tabList_[index].computeIndicatorClientRect(),\n      getTabDimensionsAtIndex: (index) => this.tabList_[index].computeDimensions(),\n      getPreviousActiveTabIndex: () => {\n        for (let i = 0; i < this.tabList_.length; i++) {\n          if (this.tabList_[i].active) {\n            return i;\n          }\n        }\n        return -1;\n      },\n      getFocusedTabIndex: () => {\n        const tabElements = this.getTabElements_();\n        const activeElement = document.activeElement!;\n        return tabElements.indexOf(activeElement);\n      },\n      getIndexOfTabById: (id) => {\n        for (let i = 0; i < this.tabList_.length; i++) {\n          if (this.tabList_[i].id === id) {\n            return i;\n          }\n        }\n        return -1;\n      },\n      getTabListLength: () => this.tabList_.length,\n      notifyTabActivated: (index) =>\n          this.emit<MDCTabBarActivatedEventDetail>(strings.TAB_ACTIVATED_EVENT, {index}, true),\n    };\n    // tslint:enable:object-literal-sort-keys\n    return new MDCTabBarFoundation(adapter);\n  }\n\n  /**\n   * Activates the tab at the given index\n   * @param index The index of the tab\n   */\n  activateTab(index: number) {\n    this.foundation_.activateTab(index);\n  }\n\n  /**\n   * Scrolls the tab at the given index into view\n   * @param index THe index of the tab\n   */\n  scrollIntoView(index: number) {\n    this.foundation_.scrollIntoView(index);\n  }\n\n  /**\n   * Returns all the tab elements in a nice clean array\n   */\n  private getTabElements_(): Element[] {\n    return [].slice.call(this.root_.querySelectorAll(strings.TAB_SELECTOR));\n  }\n\n  /**\n   * Instantiates tab components on all child tab elements\n   */\n  private instantiateTabs_(tabFactory: MDCTabFactory) {\n    return this.getTabElements_().map((el) => {\n      el.id = el.id || `mdc-tab-${++tabIdCounter}`;\n      return tabFactory(el);\n    });\n  }\n\n  /**\n   * Instantiates tab scroller component on the child tab scroller element\n   */\n  private instantiateTabScroller_(tabScrollerFactory: MDCTabScrollerFactory): MDCTabScroller | null {\n    const tabScrollerElement = this.root_.querySelector(strings.TAB_SCROLLER_SELECTOR);\n    if (tabScrollerElement) {\n      return tabScrollerFactory(tabScrollerElement);\n    }\n    return null;\n  }\n}\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nconst strings = {\n  ARROW_LEFT_KEY: 'ArrowLeft',\n  ARROW_RIGHT_KEY: 'ArrowRight',\n  END_KEY: 'End',\n  ENTER_KEY: 'Enter',\n  HOME_KEY: 'Home',\n  SPACE_KEY: 'Space',\n  TAB_ACTIVATED_EVENT: 'MDCTabBar:activated',\n  TAB_SCROLLER_SELECTOR: '.mdc-tab-scroller',\n  TAB_SELECTOR: '.mdc-tab',\n};\n\nconst numbers = {\n  ARROW_LEFT_KEYCODE: 37,\n  ARROW_RIGHT_KEYCODE: 39,\n  END_KEYCODE: 35,\n  ENTER_KEYCODE: 13,\n  EXTRA_SCROLL_AMOUNT: 20,\n  HOME_KEYCODE: 36,\n  SPACE_KEYCODE: 32,\n};\n\nexport {numbers, strings};\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {MDCTabDimensions, MDCTabInteractionEvent} from '@material/tab/types';\nimport {MDCTabBarAdapter} from './adapter';\nimport {numbers, strings} from './constants';\n\nconst ACCEPTABLE_KEYS = new Set<string>();\n// IE11 has no support for new Set with iterable so we need to initialize this by hand\nACCEPTABLE_KEYS.add(strings.ARROW_LEFT_KEY);\nACCEPTABLE_KEYS.add(strings.ARROW_RIGHT_KEY);\nACCEPTABLE_KEYS.add(strings.END_KEY);\nACCEPTABLE_KEYS.add(strings.HOME_KEY);\nACCEPTABLE_KEYS.add(strings.ENTER_KEY);\nACCEPTABLE_KEYS.add(strings.SPACE_KEY);\n\nconst KEYCODE_MAP = new Map<number, string>();\n// IE11 has no support for new Map with iterable so we need to initialize this by hand\nKEYCODE_MAP.set(numbers.ARROW_LEFT_KEYCODE, strings.ARROW_LEFT_KEY);\nKEYCODE_MAP.set(numbers.ARROW_RIGHT_KEYCODE, strings.ARROW_RIGHT_KEY);\nKEYCODE_MAP.set(numbers.END_KEYCODE, strings.END_KEY);\nKEYCODE_MAP.set(numbers.HOME_KEYCODE, strings.HOME_KEY);\nKEYCODE_MAP.set(numbers.ENTER_KEYCODE, strings.ENTER_KEY);\nKEYCODE_MAP.set(numbers.SPACE_KEYCODE, strings.SPACE_KEY);\n\nexport class MDCTabBarFoundation extends MDCFoundation<MDCTabBarAdapter> {\n  static get strings() {\n    return strings;\n  }\n\n  static get numbers() {\n    return numbers;\n  }\n\n  static get defaultAdapter(): MDCTabBarAdapter {\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    return {\n      scrollTo: () => undefined,\n      incrementScroll: () => undefined,\n      getScrollPosition: () => 0,\n      getScrollContentWidth: () => 0,\n      getOffsetWidth: () => 0,\n      isRTL: () => false,\n      setActiveTab: () => undefined,\n      activateTabAtIndex: () => undefined,\n      deactivateTabAtIndex: () => undefined,\n      focusTabAtIndex: () => undefined,\n      getTabIndicatorClientRectAtIndex: () => ({top: 0, right: 0, bottom: 0, left: 0, width: 0, height: 0}),\n      getTabDimensionsAtIndex: () => ({rootLeft: 0, rootRight: 0, contentLeft: 0, contentRight: 0}),\n      getPreviousActiveTabIndex: () => -1,\n      getFocusedTabIndex: () => -1,\n      getIndexOfTabById: () => -1,\n      getTabListLength: () => 0,\n      notifyTabActivated: () => undefined,\n    };\n    // tslint:enable:object-literal-sort-keys\n  }\n\n  private useAutomaticActivation_ = false;\n\n  constructor(adapter?: Partial<MDCTabBarAdapter>) {\n    super({...MDCTabBarFoundation.defaultAdapter, ...adapter});\n  }\n\n  /**\n   * Switches between automatic and manual activation modes.\n   * See https://www.w3.org/TR/wai-aria-practices/#tabpanel for examples.\n   */\n  setUseAutomaticActivation(useAutomaticActivation: boolean) {\n    this.useAutomaticActivation_ = useAutomaticActivation;\n  }\n\n  activateTab(index: number) {\n    const previousActiveIndex = this.adapter_.getPreviousActiveTabIndex();\n    if (!this.indexIsInRange_(index) || index === previousActiveIndex) {\n      return;\n    }\n\n    let previousClientRect;\n    if (previousActiveIndex !== -1) {\n      this.adapter_.deactivateTabAtIndex(previousActiveIndex);\n      previousClientRect = this.adapter_.getTabIndicatorClientRectAtIndex(previousActiveIndex);\n    }\n\n    this.adapter_.activateTabAtIndex(index, previousClientRect);\n    this.scrollIntoView(index);\n\n    this.adapter_.notifyTabActivated(index);\n  }\n\n  handleKeyDown(evt: KeyboardEvent) {\n    // Get the key from the event\n    const key = this.getKeyFromEvent_(evt);\n\n    // Early exit if the event key isn't one of the keyboard navigation keys\n    if (key === undefined) {\n      return;\n    }\n\n    // Prevent default behavior for movement keys, but not for activation keys, since :active is used to apply ripple\n    if (!this.isActivationKey_(key)) {\n      evt.preventDefault();\n    }\n\n    if (this.useAutomaticActivation_) {\n      if (this.isActivationKey_(key)) {\n        return;\n      }\n\n      const index = this.determineTargetFromKey_(this.adapter_.getPreviousActiveTabIndex(), key);\n      this.adapter_.setActiveTab(index);\n      this.scrollIntoView(index);\n    } else {\n      const focusedTabIndex = this.adapter_.getFocusedTabIndex();\n      if (this.isActivationKey_(key)) {\n        this.adapter_.setActiveTab(focusedTabIndex);\n      } else {\n        const index = this.determineTargetFromKey_(focusedTabIndex, key);\n        this.adapter_.focusTabAtIndex(index);\n        this.scrollIntoView(index);\n      }\n    }\n  }\n\n  /**\n   * Handles the MDCTab:interacted event\n   */\n  handleTabInteraction(evt: MDCTabInteractionEvent) {\n    this.adapter_.setActiveTab(this.adapter_.getIndexOfTabById(evt.detail.tabId));\n  }\n\n  /**\n   * Scrolls the tab at the given index into view\n   * @param index The tab index to make visible\n   */\n  scrollIntoView(index: number) {\n    // Early exit if the index is out of range\n    if (!this.indexIsInRange_(index)) {\n      return;\n    }\n\n    // Always scroll to 0 if scrolling to the 0th index\n    if (index === 0) {\n      return this.adapter_.scrollTo(0);\n    }\n\n    // Always scroll to the max value if scrolling to the Nth index\n    // MDCTabScroller.scrollTo() will never scroll past the max possible value\n    if (index === this.adapter_.getTabListLength() - 1) {\n      return this.adapter_.scrollTo(this.adapter_.getScrollContentWidth());\n    }\n\n    if (this.isRTL_()) {\n      return this.scrollIntoViewRTL_(index);\n    }\n\n    this.scrollIntoView_(index);\n  }\n\n  /**\n   * Private method for determining the index of the destination tab based on what key was pressed\n   * @param origin The original index from which to determine the destination\n   * @param key The name of the key\n   */\n  private determineTargetFromKey_(origin: number, key: string): number {\n    const isRTL = this.isRTL_();\n    const maxIndex = this.adapter_.getTabListLength() - 1;\n    const shouldGoToEnd = key === strings.END_KEY;\n    const shouldDecrement = key === strings.ARROW_LEFT_KEY && !isRTL || key === strings.ARROW_RIGHT_KEY && isRTL;\n    const shouldIncrement = key === strings.ARROW_RIGHT_KEY && !isRTL || key === strings.ARROW_LEFT_KEY && isRTL;\n    let index = origin;\n\n    if (shouldGoToEnd) {\n      index = maxIndex;\n    } else if (shouldDecrement) {\n      index -= 1;\n    } else if (shouldIncrement) {\n      index += 1;\n    } else {\n      index = 0;\n    }\n\n    if (index < 0) {\n      index = maxIndex;\n    } else if (index > maxIndex) {\n      index = 0;\n    }\n\n    return index;\n  }\n\n  /**\n   * Calculates the scroll increment that will make the tab at the given index visible\n   * @param index The index of the tab\n   * @param nextIndex The index of the next tab\n   * @param scrollPosition The current scroll position\n   * @param barWidth The width of the Tab Bar\n   */\n  private calculateScrollIncrement_(\n      index: number,\n      nextIndex: number,\n      scrollPosition: number,\n      barWidth: number,\n  ): number {\n    const nextTabDimensions = this.adapter_.getTabDimensionsAtIndex(nextIndex);\n    const relativeContentLeft = nextTabDimensions.contentLeft - scrollPosition - barWidth;\n    const relativeContentRight = nextTabDimensions.contentRight - scrollPosition;\n    const leftIncrement = relativeContentRight - numbers.EXTRA_SCROLL_AMOUNT;\n    const rightIncrement = relativeContentLeft + numbers.EXTRA_SCROLL_AMOUNT;\n\n    if (nextIndex < index) {\n      return Math.min(leftIncrement, 0);\n    }\n\n    return Math.max(rightIncrement, 0);\n  }\n\n  /**\n   * Calculates the scroll increment that will make the tab at the given index visible in RTL\n   * @param index The index of the tab\n   * @param nextIndex The index of the next tab\n   * @param scrollPosition The current scroll position\n   * @param barWidth The width of the Tab Bar\n   * @param scrollContentWidth The width of the scroll content\n   */\n  private calculateScrollIncrementRTL_(\n      index: number,\n      nextIndex: number,\n      scrollPosition: number,\n      barWidth: number,\n      scrollContentWidth: number,\n  ): number {\n    const nextTabDimensions = this.adapter_.getTabDimensionsAtIndex(nextIndex);\n    const relativeContentLeft = scrollContentWidth - nextTabDimensions.contentLeft - scrollPosition;\n    const relativeContentRight = scrollContentWidth - nextTabDimensions.contentRight - scrollPosition - barWidth;\n    const leftIncrement = relativeContentRight + numbers.EXTRA_SCROLL_AMOUNT;\n    const rightIncrement = relativeContentLeft - numbers.EXTRA_SCROLL_AMOUNT;\n\n    if (nextIndex > index) {\n      return Math.max(leftIncrement, 0);\n    }\n\n    return Math.min(rightIncrement, 0);\n  }\n\n  /**\n   * Determines the index of the adjacent tab closest to either edge of the Tab Bar\n   * @param index The index of the tab\n   * @param tabDimensions The dimensions of the tab\n   * @param scrollPosition The current scroll position\n   * @param barWidth The width of the tab bar\n   */\n  private findAdjacentTabIndexClosestToEdge_(\n      index: number,\n      tabDimensions: MDCTabDimensions,\n      scrollPosition: number,\n      barWidth: number,\n  ): number {\n    /**\n     * Tabs are laid out in the Tab Scroller like this:\n     *\n     *    Scroll Position\n     *    +---+\n     *    |   |   Bar Width\n     *    |   +-----------------------------------+\n     *    |   |                                   |\n     *    |   V                                   V\n     *    |   +-----------------------------------+\n     *    V   |             Tab Scroller          |\n     *    +------------+--------------+-------------------+\n     *    |    Tab     |      Tab     |        Tab        |\n     *    +------------+--------------+-------------------+\n     *        |                                   |\n     *        +-----------------------------------+\n     *\n     * To determine the next adjacent index, we look at the Tab root left and\n     * Tab root right, both relative to the scroll position. If the Tab root\n     * left is less than 0, then we know it's out of view to the left. If the\n     * Tab root right minus the bar width is greater than 0, we know the Tab is\n     * out of view to the right. From there, we either increment or decrement\n     * the index.\n     */\n    const relativeRootLeft = tabDimensions.rootLeft - scrollPosition;\n    const relativeRootRight = tabDimensions.rootRight - scrollPosition - barWidth;\n    const relativeRootDelta = relativeRootLeft + relativeRootRight;\n    const leftEdgeIsCloser = relativeRootLeft < 0 || relativeRootDelta < 0;\n    const rightEdgeIsCloser = relativeRootRight > 0 || relativeRootDelta > 0;\n\n    if (leftEdgeIsCloser) {\n      return index - 1;\n    }\n\n    if (rightEdgeIsCloser) {\n      return index + 1;\n    }\n\n    return -1;\n  }\n\n  /**\n   * Determines the index of the adjacent tab closest to either edge of the Tab Bar in RTL\n   * @param index The index of the tab\n   * @param tabDimensions The dimensions of the tab\n   * @param scrollPosition The current scroll position\n   * @param barWidth The width of the tab bar\n   * @param scrollContentWidth The width of the scroller content\n   */\n  private findAdjacentTabIndexClosestToEdgeRTL_(\n      index: number,\n      tabDimensions: MDCTabDimensions,\n      scrollPosition: number,\n      barWidth: number,\n      scrollContentWidth: number,\n  ): number {\n    const rootLeft = scrollContentWidth - tabDimensions.rootLeft - barWidth - scrollPosition;\n    const rootRight = scrollContentWidth - tabDimensions.rootRight - scrollPosition;\n    const rootDelta = rootLeft + rootRight;\n    const leftEdgeIsCloser = rootLeft > 0 || rootDelta > 0;\n    const rightEdgeIsCloser = rootRight < 0 || rootDelta < 0;\n\n    if (leftEdgeIsCloser) {\n      return index + 1;\n    }\n\n    if (rightEdgeIsCloser) {\n      return index - 1;\n    }\n\n    return -1;\n  }\n\n  /**\n   * Returns the key associated with a keydown event\n   * @param evt The keydown event\n   */\n  private getKeyFromEvent_(evt: KeyboardEvent): string {\n    if (ACCEPTABLE_KEYS.has(evt.key)) {\n      return evt.key;\n    }\n    return KEYCODE_MAP.get(evt.keyCode)!;\n  }\n\n  private isActivationKey_(key: string) {\n    return key === strings.SPACE_KEY || key === strings.ENTER_KEY;\n  }\n\n  /**\n   * Returns whether a given index is inclusively between the ends\n   * @param index The index to test\n   */\n  private indexIsInRange_(index: number) {\n    return index >= 0 && index < this.adapter_.getTabListLength();\n  }\n\n  /**\n   * Returns the view's RTL property\n   */\n  private isRTL_(): boolean {\n    return this.adapter_.isRTL();\n  }\n\n  /**\n   * Scrolls the tab at the given index into view for left-to-right user agents.\n   * @param index The index of the tab to scroll into view\n   */\n  private scrollIntoView_(index: number) {\n    const scrollPosition = this.adapter_.getScrollPosition();\n    const barWidth = this.adapter_.getOffsetWidth();\n    const tabDimensions = this.adapter_.getTabDimensionsAtIndex(index);\n    const nextIndex = this.findAdjacentTabIndexClosestToEdge_(index, tabDimensions, scrollPosition, barWidth);\n\n    if (!this.indexIsInRange_(nextIndex)) {\n      return;\n    }\n\n    const scrollIncrement = this.calculateScrollIncrement_(index, nextIndex, scrollPosition, barWidth);\n    this.adapter_.incrementScroll(scrollIncrement);\n  }\n\n  /**\n   * Scrolls the tab at the given index into view in RTL\n   * @param index The tab index to make visible\n   */\n  private scrollIntoViewRTL_(index: number) {\n    const scrollPosition = this.adapter_.getScrollPosition();\n    const barWidth = this.adapter_.getOffsetWidth();\n    const tabDimensions = this.adapter_.getTabDimensionsAtIndex(index);\n    const scrollWidth = this.adapter_.getScrollContentWidth();\n    const nextIndex = this.findAdjacentTabIndexClosestToEdgeRTL_(\n        index, tabDimensions, scrollPosition, barWidth, scrollWidth);\n\n    if (!this.indexIsInRange_(nextIndex)) {\n      return;\n    }\n\n    const scrollIncrement = this.calculateScrollIncrementRTL_(index, nextIndex, scrollPosition, barWidth, scrollWidth);\n    this.adapter_.incrementScroll(scrollIncrement);\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCTabBarFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport * from './adapter';\nexport * from './component';\nexport * from './constants';\nexport * from './foundation';\nexport * from './types';\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\n\nimport {MDCTabIndicatorAdapter} from './adapter';\nimport {MDCFadingTabIndicatorFoundation} from './fading-foundation';\nimport {MDCTabIndicatorFoundation} from './foundation';\nimport {MDCSlidingTabIndicatorFoundation} from './sliding-foundation';\n\nexport type MDCTabIndicatorFactory = (el: Element, foundation?: MDCTabIndicatorFoundation) => MDCTabIndicator;\n\nexport class MDCTabIndicator extends MDCComponent<MDCTabIndicatorFoundation> {\n  static attachTo(root: Element): MDCTabIndicator {\n    return new MDCTabIndicator(root);\n  }\n\n  private content_!: HTMLElement; // assigned in initialize()\n\n  initialize() {\n    this.content_ = this.root_.querySelector<HTMLElement>(MDCTabIndicatorFoundation.strings.CONTENT_SELECTOR)!;\n  }\n\n  computeContentClientRect(): ClientRect {\n    return this.foundation_.computeContentClientRect();\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    const adapter: MDCTabIndicatorAdapter = {\n      addClass: (className) => this.root_.classList.add(className),\n      removeClass: (className) => this.root_.classList.remove(className),\n      computeContentClientRect: () => this.content_.getBoundingClientRect(),\n      setContentStyleProperty: (prop, value) => this.content_.style.setProperty(prop, value),\n    };\n    // tslint:enable:object-literal-sort-keys\n\n    if (this.root_.classList.contains(MDCTabIndicatorFoundation.cssClasses.FADE)) {\n      return new MDCFadingTabIndicatorFoundation(adapter);\n    }\n\n    // Default to the sliding indicator\n    return new MDCSlidingTabIndicatorFoundation(adapter);\n  }\n\n  activate(previousIndicatorClientRect?: ClientRect) {\n    this.foundation_.activate(previousIndicatorClientRect);\n  }\n\n  deactivate() {\n    this.foundation_.deactivate();\n  }\n}\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nconst cssClasses = {\n  ACTIVE: 'mdc-tab-indicator--active',\n  FADE: 'mdc-tab-indicator--fade',\n  NO_TRANSITION: 'mdc-tab-indicator--no-transition',\n};\n\nconst strings = {\n  CONTENT_SELECTOR: '.mdc-tab-indicator__content',\n};\n\nexport {\n  cssClasses,\n  strings,\n};\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCTabIndicatorFoundation} from './foundation';\n\n/* istanbul ignore next: subclass is not a branch statement */\nexport class MDCFadingTabIndicatorFoundation extends MDCTabIndicatorFoundation {\n  activate() {\n    this.adapter_.addClass(MDCTabIndicatorFoundation.cssClasses.ACTIVE);\n  }\n\n  deactivate() {\n    this.adapter_.removeClass(MDCTabIndicatorFoundation.cssClasses.ACTIVE);\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCFadingTabIndicatorFoundation;\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {MDCTabIndicatorAdapter} from './adapter';\nimport {cssClasses, strings} from './constants';\n\nexport abstract class MDCTabIndicatorFoundation extends MDCFoundation<MDCTabIndicatorAdapter> {\n  static get cssClasses() {\n    return cssClasses;\n  }\n\n  static get strings() {\n    return strings;\n  }\n\n  static get defaultAdapter(): MDCTabIndicatorAdapter {\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    return {\n      addClass: () => undefined,\n      removeClass: () => undefined,\n      computeContentClientRect: () => ({top: 0, right: 0, bottom: 0, left: 0, width: 0, height: 0}),\n      setContentStyleProperty: () => undefined,\n    };\n    // tslint:enable:object-literal-sort-keys\n  }\n\n  constructor(adapter?: Partial<MDCTabIndicatorAdapter>) {\n    super({...MDCTabIndicatorFoundation.defaultAdapter, ...adapter});\n  }\n\n  computeContentClientRect(): ClientRect {\n    return this.adapter_.computeContentClientRect();\n  }\n\n  abstract activate(previousIndicatorClientRect?: ClientRect): void;\n  abstract deactivate(): void;\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCTabIndicatorFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport * from './adapter';\nexport * from './component';\nexport * from './constants';\nexport * from './foundation';\nexport * from './fading-foundation';\nexport * from './sliding-foundation';\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCTabIndicatorFoundation} from './foundation';\n\n/* istanbul ignore next: subclass is not a branch statement */\nexport class MDCSlidingTabIndicatorFoundation extends MDCTabIndicatorFoundation {\n  activate(previousIndicatorClientRect?: ClientRect) {\n    // Early exit if no indicator is present to handle cases where an indicator\n    // may be activated without a prior indicator state\n    if (!previousIndicatorClientRect) {\n      this.adapter_.addClass(MDCTabIndicatorFoundation.cssClasses.ACTIVE);\n      return;\n    }\n\n    // This animation uses the FLIP approach. You can read more about it at the link below:\n    // https://aerotwist.com/blog/flip-your-animations/\n\n    // Calculate the dimensions based on the dimensions of the previous indicator\n    const currentClientRect = this.computeContentClientRect();\n    const widthDelta = previousIndicatorClientRect.width / currentClientRect.width;\n    const xPosition = previousIndicatorClientRect.left - currentClientRect.left;\n    this.adapter_.addClass(MDCTabIndicatorFoundation.cssClasses.NO_TRANSITION);\n    this.adapter_.setContentStyleProperty('transform', `translateX(${xPosition}px) scaleX(${widthDelta})`);\n\n    // Force repaint before updating classes and transform to ensure the transform properly takes effect\n    this.computeContentClientRect();\n\n    this.adapter_.removeClass(MDCTabIndicatorFoundation.cssClasses.NO_TRANSITION);\n    this.adapter_.addClass(MDCTabIndicatorFoundation.cssClasses.ACTIVE);\n    this.adapter_.setContentStyleProperty('transform', '');\n  }\n\n  deactivate() {\n    this.adapter_.removeClass(MDCTabIndicatorFoundation.cssClasses.ACTIVE);\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCSlidingTabIndicatorFoundation;\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {SpecificEventListener} from '@material/base/types';\nimport {applyPassive} from '@material/dom/events';\nimport {matches} from '@material/dom/ponyfill';\nimport {MDCTabScrollerAdapter} from './adapter';\nimport {MDCTabScrollerFoundation} from './foundation';\nimport * as util from './util';\n\ntype InteractionEventType = 'wheel' | 'touchstart' | 'pointerdown' | 'mousedown' | 'keydown';\n\nexport type MDCTabScrollerFactory = (el: Element, foundation?: MDCTabScrollerFoundation) => MDCTabScroller;\n\nexport class MDCTabScroller extends MDCComponent<MDCTabScrollerFoundation> {\n  static attachTo(root: Element): MDCTabScroller {\n    return new MDCTabScroller(root);\n  }\n\n  private content_!: HTMLElement; // assigned in initialize()\n  private area_!: HTMLElement; // assigned in initialize()\n  private handleInteraction_!: SpecificEventListener<InteractionEventType>; // assigned in initialSyncWithDOM()\n  private handleTransitionEnd_!: SpecificEventListener<'transitionend'>; // assigned in initialSyncWithDOM()\n\n  initialize() {\n    this.area_ = this.root_.querySelector<HTMLElement>(MDCTabScrollerFoundation.strings.AREA_SELECTOR)!;\n    this.content_ = this.root_.querySelector<HTMLElement>(MDCTabScrollerFoundation.strings.CONTENT_SELECTOR)!;\n  }\n\n  initialSyncWithDOM() {\n    this.handleInteraction_ = () => this.foundation_.handleInteraction();\n    this.handleTransitionEnd_ = (evt) => this.foundation_.handleTransitionEnd(evt);\n\n    this.area_.addEventListener('wheel', this.handleInteraction_, applyPassive());\n    this.area_.addEventListener('touchstart', this.handleInteraction_, applyPassive());\n    this.area_.addEventListener('pointerdown', this.handleInteraction_, applyPassive());\n    this.area_.addEventListener('mousedown', this.handleInteraction_, applyPassive());\n    this.area_.addEventListener('keydown', this.handleInteraction_, applyPassive());\n    this.content_.addEventListener('transitionend', this.handleTransitionEnd_);\n  }\n\n  destroy() {\n    super.destroy();\n\n    this.area_.removeEventListener('wheel', this.handleInteraction_, applyPassive());\n    this.area_.removeEventListener('touchstart', this.handleInteraction_, applyPassive());\n    this.area_.removeEventListener('pointerdown', this.handleInteraction_, applyPassive());\n    this.area_.removeEventListener('mousedown', this.handleInteraction_, applyPassive());\n    this.area_.removeEventListener('keydown', this.handleInteraction_, applyPassive());\n    this.content_.removeEventListener('transitionend', this.handleTransitionEnd_);\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    const adapter: MDCTabScrollerAdapter = {\n      eventTargetMatchesSelector: (evtTarget, selector) => matches(evtTarget as Element, selector),\n      addClass: (className) => this.root_.classList.add(className),\n      removeClass: (className) => this.root_.classList.remove(className),\n      addScrollAreaClass: (className) => this.area_.classList.add(className),\n      setScrollAreaStyleProperty: (prop, value) => this.area_.style.setProperty(prop, value),\n      setScrollContentStyleProperty: (prop, value) => this.content_.style.setProperty(prop, value),\n      getScrollContentStyleValue: (propName) => window.getComputedStyle(this.content_).getPropertyValue(propName),\n      setScrollAreaScrollLeft: (scrollX) => this.area_.scrollLeft = scrollX,\n      getScrollAreaScrollLeft: () => this.area_.scrollLeft,\n      getScrollContentOffsetWidth: () => this.content_.offsetWidth,\n      getScrollAreaOffsetWidth: () => this.area_.offsetWidth,\n      computeScrollAreaClientRect: () => this.area_.getBoundingClientRect(),\n      computeScrollContentClientRect: () => this.content_.getBoundingClientRect(),\n      computeHorizontalScrollbarHeight: () => util.computeHorizontalScrollbarHeight(document),\n    };\n    // tslint:enable:object-literal-sort-keys\n    return new MDCTabScrollerFoundation(adapter);\n  }\n\n  /**\n   * Returns the current visual scroll position\n   */\n  getScrollPosition(): number {\n    return this.foundation_.getScrollPosition();\n  }\n\n  /**\n   * Returns the width of the scroll content\n   */\n  getScrollContentWidth(): number {\n    return this.content_.offsetWidth;\n  }\n\n  /**\n   * Increments the scroll value by the given amount\n   * @param scrollXIncrement The pixel value by which to increment the scroll value\n   */\n  incrementScroll(scrollXIncrement: number) {\n    this.foundation_.incrementScroll(scrollXIncrement);\n  }\n\n  /**\n   * Scrolls to the given pixel position\n   * @param scrollX The pixel value to scroll to\n   */\n  scrollTo(scrollX: number) {\n    this.foundation_.scrollTo(scrollX);\n  }\n}\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nconst cssClasses = {\n  ANIMATING: 'mdc-tab-scroller--animating',\n  SCROLL_AREA_SCROLL: 'mdc-tab-scroller__scroll-area--scroll',\n  SCROLL_TEST: 'mdc-tab-scroller__test',\n};\n\nconst strings = {\n  AREA_SELECTOR: '.mdc-tab-scroller__scroll-area',\n  CONTENT_SELECTOR: '.mdc-tab-scroller__scroll-content',\n};\n\nexport {\n  cssClasses,\n  strings,\n};\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {MDCTabScrollerAdapter} from './adapter';\nimport {cssClasses, strings} from './constants';\nimport {MDCTabScrollerRTLDefault} from './rtl-default-scroller';\nimport {MDCTabScrollerRTLNegative} from './rtl-negative-scroller';\nimport {MDCTabScrollerRTLReverse} from './rtl-reverse-scroller';\nimport {MDCTabScrollerRTL} from './rtl-scroller';\nimport {MDCTabScrollerAnimation, MDCTabScrollerHorizontalEdges} from './types';\n\nexport class MDCTabScrollerFoundation extends MDCFoundation<MDCTabScrollerAdapter> {\n  static get cssClasses() {\n    return cssClasses;\n  }\n\n  static get strings() {\n    return strings;\n  }\n\n  static get defaultAdapter(): MDCTabScrollerAdapter {\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    return {\n      eventTargetMatchesSelector: () => false,\n      addClass: () => undefined,\n      removeClass: () => undefined,\n      addScrollAreaClass: () => undefined,\n      setScrollAreaStyleProperty: () => undefined,\n      setScrollContentStyleProperty: () => undefined,\n      getScrollContentStyleValue: () => '',\n      setScrollAreaScrollLeft: () => undefined,\n      getScrollAreaScrollLeft: () => 0,\n      getScrollContentOffsetWidth: () => 0,\n      getScrollAreaOffsetWidth: () => 0,\n      computeScrollAreaClientRect: () => ({top: 0, right: 0, bottom: 0, left: 0, width: 0, height: 0}),\n      computeScrollContentClientRect: () => ({top: 0, right: 0, bottom: 0, left: 0, width: 0, height: 0}),\n      computeHorizontalScrollbarHeight: () => 0,\n    };\n    // tslint:enable:object-literal-sort-keys\n  }\n\n  /**\n   * Controls whether we should handle the transitionend and interaction events during the animation.\n   */\n  private isAnimating_ = false;\n\n  /**\n   * The MDCTabScrollerRTL instance varies per browser and allows us to encapsulate the peculiar browser behavior\n   * of RTL scrolling in it's own class.\n   */\n  private rtlScrollerInstance_?: MDCTabScrollerRTL;\n\n  constructor(adapter?: Partial<MDCTabScrollerAdapter>) {\n    super({...MDCTabScrollerFoundation.defaultAdapter, ...adapter});\n  }\n\n  init() {\n    // Compute horizontal scrollbar height on scroller with overflow initially hidden, then update overflow to scroll\n    // and immediately adjust bottom margin to avoid the scrollbar initially appearing before JS runs.\n    const horizontalScrollbarHeight = this.adapter_.computeHorizontalScrollbarHeight();\n    this.adapter_.setScrollAreaStyleProperty('margin-bottom', -horizontalScrollbarHeight + 'px');\n    this.adapter_.addScrollAreaClass(MDCTabScrollerFoundation.cssClasses.SCROLL_AREA_SCROLL);\n  }\n\n  /**\n   * Computes the current visual scroll position\n   */\n  getScrollPosition(): number {\n    if (this.isRTL_()) {\n      return this.computeCurrentScrollPositionRTL_();\n    }\n\n    const currentTranslateX = this.calculateCurrentTranslateX_();\n    const scrollLeft = this.adapter_.getScrollAreaScrollLeft();\n    return scrollLeft - currentTranslateX;\n  }\n\n  /**\n   * Handles interaction events that occur during transition\n   */\n  handleInteraction() {\n    // Early exit if we aren't animating\n    if (!this.isAnimating_) {\n      return;\n    }\n\n    // Prevent other event listeners from handling this event\n    this.stopScrollAnimation_();\n  }\n\n  /**\n   * Handles the transitionend event\n   */\n  handleTransitionEnd(evt: Event) {\n    // Early exit if we aren't animating or the event was triggered by a different element.\n    const evtTarget = evt.target as Element;\n    if (!this.isAnimating_ ||\n        !this.adapter_.eventTargetMatchesSelector(evtTarget, MDCTabScrollerFoundation.strings.CONTENT_SELECTOR)) {\n      return;\n    }\n\n    this.isAnimating_ = false;\n    this.adapter_.removeClass(MDCTabScrollerFoundation.cssClasses.ANIMATING);\n  }\n\n  /**\n   * Increment the scroll value by the scrollXIncrement using animation.\n   * @param scrollXIncrement The value by which to increment the scroll position\n   */\n  incrementScroll(scrollXIncrement: number) {\n    // Early exit for non-operational increment values\n    if (scrollXIncrement === 0) {\n      return;\n    }\n\n    this.animate_(this.getIncrementScrollOperation_(scrollXIncrement));\n  }\n\n  /**\n   * Increment the scroll value by the scrollXIncrement without animation.\n   * @param scrollXIncrement The value by which to increment the scroll position\n   */\n  incrementScrollImmediate(scrollXIncrement: number) {\n    // Early exit for non-operational increment values\n    if (scrollXIncrement === 0) {\n      return;\n    }\n\n    const operation = this.getIncrementScrollOperation_(scrollXIncrement);\n    if (operation.scrollDelta === 0) {\n      return;\n    }\n\n    this.stopScrollAnimation_();\n    this.adapter_.setScrollAreaScrollLeft(operation.finalScrollPosition);\n  }\n\n  /**\n   * Scrolls to the given scrollX value\n   */\n  scrollTo(scrollX: number) {\n    if (this.isRTL_()) {\n      return this.scrollToRTL_(scrollX);\n    }\n\n    this.scrollTo_(scrollX);\n  }\n\n  /**\n   * @return Browser-specific {@link MDCTabScrollerRTL} instance.\n   */\n  getRTLScroller(): MDCTabScrollerRTL {\n    if (!this.rtlScrollerInstance_) {\n      this.rtlScrollerInstance_ = this.rtlScrollerFactory_();\n    }\n\n    return this.rtlScrollerInstance_;\n  }\n\n  /**\n   * @return translateX value from a CSS matrix transform function string.\n   */\n  private calculateCurrentTranslateX_(): number {\n    const transformValue = this.adapter_.getScrollContentStyleValue('transform');\n    // Early exit if no transform is present\n    if (transformValue === 'none') {\n      return 0;\n    }\n\n    // The transform value comes back as a matrix transformation in the form\n    // of `matrix(a, b, c, d, tx, ty)`. We only care about tx (translateX) so\n    // we're going to grab all the parenthesized values, strip out tx, and\n    // parse it.\n    const match = /\\((.+?)\\)/.exec(transformValue);\n    if (!match) {\n      return 0;\n    }\n\n    const matrixParams = match[1];\n\n    // tslint:disable-next-line:ban-ts-ignore \"Unused vars\" should be a linter warning, not a compiler error.\n    // @ts-ignore These unused variables should retain their semantic names for clarity.\n    const [a, b, c, d, tx, ty] = matrixParams.split(',');\n\n    return parseFloat(tx); // tslint:disable-line:ban\n  }\n\n  /**\n   * Calculates a safe scroll value that is > 0 and < the max scroll value\n   * @param scrollX The distance to scroll\n   */\n  private clampScrollValue_(scrollX: number): number {\n    const edges = this.calculateScrollEdges_();\n    return Math.min(Math.max(edges.left, scrollX), edges.right);\n  }\n\n  private computeCurrentScrollPositionRTL_(): number {\n    const translateX = this.calculateCurrentTranslateX_();\n    return this.getRTLScroller().getScrollPositionRTL(translateX);\n  }\n\n  private calculateScrollEdges_(): MDCTabScrollerHorizontalEdges {\n    const contentWidth = this.adapter_.getScrollContentOffsetWidth();\n    const rootWidth = this.adapter_.getScrollAreaOffsetWidth();\n    return {\n      left: 0,\n      right: contentWidth - rootWidth,\n    };\n  }\n\n  /**\n   * Internal scroll method\n   * @param scrollX The new scroll position\n   */\n  private scrollTo_(scrollX: number) {\n    const currentScrollX = this.getScrollPosition();\n    const safeScrollX = this.clampScrollValue_(scrollX);\n    const scrollDelta = safeScrollX - currentScrollX;\n    this.animate_({\n      finalScrollPosition: safeScrollX,\n      scrollDelta,\n    });\n  }\n\n  /**\n   * Internal RTL scroll method\n   * @param scrollX The new scroll position\n   */\n  private scrollToRTL_(scrollX: number) {\n    const animation = this.getRTLScroller().scrollToRTL(scrollX);\n    this.animate_(animation);\n  }\n\n  /**\n   * Internal method to compute the increment scroll operation values.\n   * @param scrollX The desired scroll position increment\n   * @return MDCTabScrollerAnimation with the sanitized values for performing the scroll operation.\n   */\n  private getIncrementScrollOperation_(scrollX: number): MDCTabScrollerAnimation {\n    if (this.isRTL_()) {\n      return this.getRTLScroller().incrementScrollRTL(scrollX);\n    }\n\n    const currentScrollX = this.getScrollPosition();\n    const targetScrollX = scrollX + currentScrollX;\n    const safeScrollX = this.clampScrollValue_(targetScrollX);\n    const scrollDelta = safeScrollX - currentScrollX;\n    return {\n      finalScrollPosition: safeScrollX,\n      scrollDelta,\n    };\n  }\n\n  /**\n   * Animates the tab scrolling\n   * @param animation The animation to apply\n   */\n  private animate_(animation: MDCTabScrollerAnimation) {\n    // Early exit if translateX is 0, which means there's no animation to perform\n    if (animation.scrollDelta === 0) {\n      return;\n    }\n\n    this.stopScrollAnimation_();\n    // This animation uses the FLIP approach.\n    // Read more here: https://aerotwist.com/blog/flip-your-animations/\n    this.adapter_.setScrollAreaScrollLeft(animation.finalScrollPosition);\n    this.adapter_.setScrollContentStyleProperty('transform', `translateX(${animation.scrollDelta}px)`);\n    // Force repaint\n    this.adapter_.computeScrollAreaClientRect();\n\n    requestAnimationFrame(() => {\n      this.adapter_.addClass(MDCTabScrollerFoundation.cssClasses.ANIMATING);\n      this.adapter_.setScrollContentStyleProperty('transform', 'none');\n    });\n\n    this.isAnimating_ = true;\n  }\n\n  /**\n   * Stops scroll animation\n   */\n  private stopScrollAnimation_() {\n    this.isAnimating_ = false;\n    const currentScrollPosition = this.getAnimatingScrollPosition_();\n    this.adapter_.removeClass(MDCTabScrollerFoundation.cssClasses.ANIMATING);\n    this.adapter_.setScrollContentStyleProperty('transform', 'translateX(0px)');\n    this.adapter_.setScrollAreaScrollLeft(currentScrollPosition);\n  }\n\n  /**\n   * Gets the current scroll position during animation\n   */\n  private getAnimatingScrollPosition_(): number {\n    const currentTranslateX = this.calculateCurrentTranslateX_();\n    const scrollLeft = this.adapter_.getScrollAreaScrollLeft();\n    if (this.isRTL_()) {\n      return this.getRTLScroller().getAnimatingScrollPosition(scrollLeft, currentTranslateX);\n    }\n\n    return scrollLeft - currentTranslateX;\n  }\n\n  /**\n   * Determines the RTL Scroller to use\n   */\n  private rtlScrollerFactory_(): MDCTabScrollerRTL {\n    // Browsers have three different implementations of scrollLeft in RTL mode,\n    // dependent on the browser. The behavior is based off the max LTR\n    // scrollLeft value and 0.\n    //\n    // * Default scrolling in RTL *\n    //    - Left-most value: 0\n    //    - Right-most value: Max LTR scrollLeft value\n    //\n    // * Negative scrolling in RTL *\n    //    - Left-most value: Negated max LTR scrollLeft value\n    //    - Right-most value: 0\n    //\n    // * Reverse scrolling in RTL *\n    //    - Left-most value: Max LTR scrollLeft value\n    //    - Right-most value: 0\n    //\n    // We use those principles below to determine which RTL scrollLeft\n    // behavior is implemented in the current browser.\n    const initialScrollLeft = this.adapter_.getScrollAreaScrollLeft();\n    this.adapter_.setScrollAreaScrollLeft(initialScrollLeft - 1);\n    const newScrollLeft = this.adapter_.getScrollAreaScrollLeft();\n\n    // If the newScrollLeft value is negative,then we know that the browser has\n    // implemented negative RTL scrolling, since all other implementations have\n    // only positive values.\n    if (newScrollLeft < 0) {\n      // Undo the scrollLeft test check\n      this.adapter_.setScrollAreaScrollLeft(initialScrollLeft);\n      return new MDCTabScrollerRTLNegative(this.adapter_);\n    }\n\n    const rootClientRect = this.adapter_.computeScrollAreaClientRect();\n    const contentClientRect = this.adapter_.computeScrollContentClientRect();\n    const rightEdgeDelta = Math.round(contentClientRect.right - rootClientRect.right);\n    // Undo the scrollLeft test check\n    this.adapter_.setScrollAreaScrollLeft(initialScrollLeft);\n\n    // By calculating the clientRect of the root element and the clientRect of\n    // the content element, we can determine how much the scroll value changed\n    // when we performed the scrollLeft subtraction above.\n    if (rightEdgeDelta === newScrollLeft) {\n      return new MDCTabScrollerRTLReverse(this.adapter_);\n    }\n\n    return new MDCTabScrollerRTLDefault(this.adapter_);\n  }\n\n  private isRTL_(): boolean {\n    return this.adapter_.getScrollContentStyleValue('direction') === 'rtl';\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCTabScrollerFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport * as util from './util';\n\nexport {util};\nexport * from './adapter';\nexport * from './component';\nexport * from './constants';\nexport * from './foundation';\nexport * from './types';\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCTabScrollerRTL} from './rtl-scroller';\nimport {MDCTabScrollerAnimation, MDCTabScrollerHorizontalEdges} from './types';\n\nexport class MDCTabScrollerRTLDefault extends MDCTabScrollerRTL {\n  getScrollPositionRTL(): number {\n    const currentScrollLeft = this.adapter_.getScrollAreaScrollLeft();\n    const {right} = this.calculateScrollEdges_();\n    // Scroll values on most browsers are ints instead of floats so we round\n    return Math.round(right - currentScrollLeft);\n  }\n\n  scrollToRTL(scrollX: number): MDCTabScrollerAnimation {\n    const edges = this.calculateScrollEdges_();\n    const currentScrollLeft = this.adapter_.getScrollAreaScrollLeft();\n    const clampedScrollLeft = this.clampScrollValue_(edges.right - scrollX);\n    return {\n      finalScrollPosition: clampedScrollLeft,\n      scrollDelta: clampedScrollLeft - currentScrollLeft,\n    };\n  }\n\n  incrementScrollRTL(scrollX: number): MDCTabScrollerAnimation {\n    const currentScrollLeft = this.adapter_.getScrollAreaScrollLeft();\n    const clampedScrollLeft = this.clampScrollValue_(currentScrollLeft - scrollX);\n    return {\n      finalScrollPosition: clampedScrollLeft,\n      scrollDelta: clampedScrollLeft - currentScrollLeft,\n    };\n  }\n\n  getAnimatingScrollPosition(scrollX: number): number {\n    return scrollX;\n  }\n\n  private calculateScrollEdges_(): MDCTabScrollerHorizontalEdges {\n    const contentWidth = this.adapter_.getScrollContentOffsetWidth();\n    const rootWidth = this.adapter_.getScrollAreaOffsetWidth();\n    return {\n      left: 0,\n      right: contentWidth - rootWidth,\n    };\n  }\n\n  private clampScrollValue_(scrollX: number): number {\n    const edges = this.calculateScrollEdges_();\n    return Math.min(Math.max(edges.left, scrollX), edges.right);\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCTabScrollerRTLDefault;\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCTabScrollerRTL} from './rtl-scroller';\nimport {MDCTabScrollerAnimation, MDCTabScrollerHorizontalEdges} from './types';\n\nexport class MDCTabScrollerRTLNegative extends MDCTabScrollerRTL {\n  getScrollPositionRTL(translateX: number): number {\n    const currentScrollLeft = this.adapter_.getScrollAreaScrollLeft();\n    return Math.round(translateX - currentScrollLeft);\n  }\n\n  scrollToRTL(scrollX: number): MDCTabScrollerAnimation {\n    const currentScrollLeft = this.adapter_.getScrollAreaScrollLeft();\n    const clampedScrollLeft = this.clampScrollValue_(-scrollX);\n    return {\n      finalScrollPosition: clampedScrollLeft,\n      scrollDelta: clampedScrollLeft - currentScrollLeft,\n    };\n  }\n\n  incrementScrollRTL(scrollX: number): MDCTabScrollerAnimation {\n    const currentScrollLeft = this.adapter_.getScrollAreaScrollLeft();\n    const clampedScrollLeft = this.clampScrollValue_(currentScrollLeft - scrollX);\n    return {\n      finalScrollPosition: clampedScrollLeft,\n      scrollDelta: clampedScrollLeft - currentScrollLeft,\n    };\n  }\n\n  getAnimatingScrollPosition(scrollX: number, translateX: number): number {\n    return scrollX - translateX;\n  }\n\n  private calculateScrollEdges_(): MDCTabScrollerHorizontalEdges {\n    const contentWidth = this.adapter_.getScrollContentOffsetWidth();\n    const rootWidth = this.adapter_.getScrollAreaOffsetWidth();\n    return {\n      left: rootWidth - contentWidth,\n      right: 0,\n    };\n  }\n\n  private clampScrollValue_(scrollX: number): number {\n    const edges = this.calculateScrollEdges_();\n    return Math.max(Math.min(edges.right, scrollX), edges.left);\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCTabScrollerRTLNegative;\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCTabScrollerRTL} from './rtl-scroller';\nimport {MDCTabScrollerAnimation, MDCTabScrollerHorizontalEdges} from './types';\n\nexport class MDCTabScrollerRTLReverse extends MDCTabScrollerRTL {\n  getScrollPositionRTL(translateX: number): number {\n    const currentScrollLeft = this.adapter_.getScrollAreaScrollLeft();\n    // Scroll values on most browsers are ints instead of floats so we round\n    return Math.round(currentScrollLeft - translateX);\n  }\n\n  scrollToRTL(scrollX: number): MDCTabScrollerAnimation {\n    const currentScrollLeft = this.adapter_.getScrollAreaScrollLeft();\n    const clampedScrollLeft = this.clampScrollValue_(scrollX);\n    return {\n      finalScrollPosition: clampedScrollLeft,\n      scrollDelta: currentScrollLeft - clampedScrollLeft,\n    };\n  }\n\n  incrementScrollRTL(scrollX: number): MDCTabScrollerAnimation {\n    const currentScrollLeft = this.adapter_.getScrollAreaScrollLeft();\n    const clampedScrollLeft = this.clampScrollValue_(currentScrollLeft + scrollX);\n    return {\n      finalScrollPosition: clampedScrollLeft,\n      scrollDelta: currentScrollLeft - clampedScrollLeft,\n    };\n  }\n\n  getAnimatingScrollPosition(scrollX: number, translateX: number): number {\n    return scrollX + translateX;\n  }\n\n  private calculateScrollEdges_(): MDCTabScrollerHorizontalEdges {\n    const contentWidth = this.adapter_.getScrollContentOffsetWidth();\n    const rootWidth = this.adapter_.getScrollAreaOffsetWidth();\n    return {\n      left: contentWidth - rootWidth,\n      right: 0,\n    };\n  }\n\n  private clampScrollValue_(scrollX: number): number {\n    const edges = this.calculateScrollEdges_();\n    return Math.min(Math.max(edges.right, scrollX), edges.left);\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCTabScrollerRTLReverse;\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCTabScrollerAdapter} from './adapter';\nimport {MDCTabScrollerAnimation} from './types';\n\nexport abstract class MDCTabScrollerRTL {\n  protected readonly adapter_: MDCTabScrollerAdapter;\n\n  constructor(adapter: MDCTabScrollerAdapter) {\n    this.adapter_ = adapter;\n  }\n\n  abstract getScrollPositionRTL(translateX: number): number;\n\n  abstract scrollToRTL(scrollX: number): MDCTabScrollerAnimation;\n\n  abstract incrementScrollRTL(scrollX: number): MDCTabScrollerAnimation;\n\n  /**\n   * @param scrollX The current scrollX position\n   * @param translateX The current translateX position\n   */\n  abstract getAnimatingScrollPosition(scrollX: number, translateX: number): number;\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCTabScrollerRTL;\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {cssClasses} from './constants';\n\n/**\n * Stores result from computeHorizontalScrollbarHeight to avoid redundant processing.\n */\nlet horizontalScrollbarHeight_: number | undefined;\n\n/**\n * Computes the height of browser-rendered horizontal scrollbars using a self-created test element.\n * May return 0 (e.g. on OS X browsers under default configuration).\n */\nexport function computeHorizontalScrollbarHeight(documentObj: Document, shouldCacheResult = true): number {\n  if (shouldCacheResult && typeof horizontalScrollbarHeight_ !== 'undefined') {\n    return horizontalScrollbarHeight_;\n  }\n\n  const el = documentObj.createElement('div');\n  el.classList.add(cssClasses.SCROLL_TEST);\n  documentObj.body.appendChild(el);\n\n  const horizontalScrollbarHeight = el.offsetHeight - el.clientHeight;\n  documentObj.body.removeChild(el);\n\n  if (shouldCacheResult) {\n    horizontalScrollbarHeight_ = horizontalScrollbarHeight;\n  }\n  return horizontalScrollbarHeight;\n}\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {SpecificEventListener} from '@material/base/types';\nimport {MDCRipple, MDCRippleFactory} from '@material/ripple/component';\nimport {MDCRippleFoundation} from '@material/ripple/foundation';\nimport {MDCRippleCapableSurface} from '@material/ripple/types';\nimport {MDCTabIndicator, MDCTabIndicatorFactory} from '@material/tab-indicator/component';\nimport {MDCTabAdapter} from './adapter';\nimport {MDCTabFoundation} from './foundation';\nimport {MDCTabDimensions, MDCTabInteractionEventDetail} from './types';\n\nexport type MDCTabFactory = (el: Element, foundation?: MDCTabFoundation) => MDCTab;\n\nexport class MDCTab extends MDCComponent<MDCTabFoundation> implements MDCRippleCapableSurface {\n  static attachTo(root: Element): MDCTab {\n    return new MDCTab(root);\n  }\n\n  id!: string; // assigned in initialize();\n\n  // Public visibility for this property is required by MDCRippleCapableSurface.\n  root_!: HTMLElement; // assigned in MDCComponent constructor\n\n  private ripple_!: MDCRipple; // assigned in initialize();\n  private tabIndicator_!: MDCTabIndicator; // assigned in initialize();\n  private content_!: HTMLElement; // assigned in initialize();\n  private handleClick_!: SpecificEventListener<'click'>; // assigned in initialize();\n\n  initialize(\n      rippleFactory: MDCRippleFactory = (el, foundation) => new MDCRipple(el, foundation),\n      tabIndicatorFactory: MDCTabIndicatorFactory = (el) => new MDCTabIndicator(el),\n  ) {\n    this.id = this.root_.id;\n    const rippleSurface = this.root_.querySelector<HTMLElement>(MDCTabFoundation.strings.RIPPLE_SELECTOR)!;\n    const rippleAdapter = {\n      ...MDCRipple.createAdapter(this),\n      addClass: (className: string) => rippleSurface.classList.add(className),\n      removeClass: (className: string) => rippleSurface.classList.remove(className),\n      updateCssVariable: (varName: string, value: string) => rippleSurface.style.setProperty(varName, value),\n    };\n    const rippleFoundation = new MDCRippleFoundation(rippleAdapter);\n    this.ripple_ = rippleFactory(this.root_, rippleFoundation);\n\n    const tabIndicatorElement = this.root_.querySelector(MDCTabFoundation.strings.TAB_INDICATOR_SELECTOR)!;\n    this.tabIndicator_ = tabIndicatorFactory(tabIndicatorElement);\n    this.content_ = this.root_.querySelector<HTMLElement>(MDCTabFoundation.strings.CONTENT_SELECTOR)!;\n  }\n\n  initialSyncWithDOM() {\n    this.handleClick_ = () => this.foundation_.handleClick();\n    this.listen('click', this.handleClick_);\n  }\n\n  destroy() {\n    this.unlisten('click', this.handleClick_);\n    this.ripple_.destroy();\n    super.destroy();\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    const adapter: MDCTabAdapter = {\n      setAttr: (attr, value) => this.root_.setAttribute(attr, value),\n      addClass: (className) => this.root_.classList.add(className),\n      removeClass: (className) => this.root_.classList.remove(className),\n      hasClass: (className) => this.root_.classList.contains(className),\n      activateIndicator: (previousIndicatorClientRect) => this.tabIndicator_.activate(previousIndicatorClientRect),\n      deactivateIndicator: () => this.tabIndicator_.deactivate(),\n      notifyInteracted: () => this.emit<MDCTabInteractionEventDetail>(\n          MDCTabFoundation.strings.INTERACTED_EVENT, {tabId: this.id}, true /* bubble */),\n      getOffsetLeft: () => this.root_.offsetLeft,\n      getOffsetWidth: () => this.root_.offsetWidth,\n      getContentOffsetLeft: () => this.content_.offsetLeft,\n      getContentOffsetWidth: () => this.content_.offsetWidth,\n      focus: () => this.root_.focus(),\n    };\n    // tslint:enable:object-literal-sort-keys\n    return new MDCTabFoundation(adapter);\n  }\n\n  /**\n   * Getter for the active state of the tab\n   */\n  get active(): boolean {\n    return this.foundation_.isActive();\n  }\n\n  set focusOnActivate(focusOnActivate: boolean) {\n    this.foundation_.setFocusOnActivate(focusOnActivate);\n  }\n\n  /**\n   * Activates the tab\n   */\n  activate(computeIndicatorClientRect?: ClientRect) {\n    this.foundation_.activate(computeIndicatorClientRect);\n  }\n\n  /**\n   * Deactivates the tab\n   */\n  deactivate() {\n    this.foundation_.deactivate();\n  }\n\n  /**\n   * Returns the indicator's client rect\n   */\n  computeIndicatorClientRect(): ClientRect {\n    return this.tabIndicator_.computeContentClientRect();\n  }\n\n  computeDimensions(): MDCTabDimensions {\n    return this.foundation_.computeDimensions();\n  }\n\n  /**\n   * Focuses the tab\n   */\n  focus() {\n    this.root_.focus();\n  }\n}\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nconst cssClasses = {\n  ACTIVE: 'mdc-tab--active',\n};\n\nconst strings = {\n  ARIA_SELECTED: 'aria-selected',\n  CONTENT_SELECTOR: '.mdc-tab__content',\n  INTERACTED_EVENT: 'MDCTab:interacted',\n  RIPPLE_SELECTOR: '.mdc-tab__ripple',\n  TABINDEX: 'tabIndex',\n  TAB_INDICATOR_SELECTOR: '.mdc-tab-indicator',\n};\n\nexport {\n  cssClasses,\n  strings,\n};\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {MDCTabAdapter} from './adapter';\nimport {cssClasses, strings} from './constants';\nimport {MDCTabDimensions} from './types';\n\nexport class MDCTabFoundation extends MDCFoundation<MDCTabAdapter> {\n  static get cssClasses() {\n    return cssClasses;\n  }\n\n  static get strings() {\n    return strings;\n  }\n\n  static get defaultAdapter(): MDCTabAdapter {\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    return {\n      addClass: () => undefined,\n      removeClass: () => undefined,\n      hasClass: () => false,\n      setAttr: () => undefined,\n      activateIndicator: () => undefined,\n      deactivateIndicator: () => undefined,\n      notifyInteracted: () => undefined,\n      getOffsetLeft: () => 0,\n      getOffsetWidth: () => 0,\n      getContentOffsetLeft: () => 0,\n      getContentOffsetWidth: () => 0,\n      focus: () => undefined,\n    };\n    // tslint:enable:object-literal-sort-keys\n  }\n\n  private focusOnActivate_ = true;\n\n  constructor(adapter?: Partial<MDCTabAdapter>) {\n    super({...MDCTabFoundation.defaultAdapter, ...adapter});\n  }\n\n  handleClick() {\n    // It's up to the parent component to keep track of the active Tab and\n    // ensure we don't activate a Tab that's already active.\n    this.adapter_.notifyInteracted();\n  }\n\n  isActive(): boolean {\n    return this.adapter_.hasClass(cssClasses.ACTIVE);\n  }\n\n  /**\n   * Sets whether the tab should focus itself when activated\n   */\n  setFocusOnActivate(focusOnActivate: boolean) {\n    this.focusOnActivate_ = focusOnActivate;\n  }\n\n  /**\n   * Activates the Tab\n   */\n  activate(previousIndicatorClientRect?: ClientRect) {\n    this.adapter_.addClass(cssClasses.ACTIVE);\n    this.adapter_.setAttr(strings.ARIA_SELECTED, 'true');\n    this.adapter_.setAttr(strings.TABINDEX, '0');\n    this.adapter_.activateIndicator(previousIndicatorClientRect);\n    if (this.focusOnActivate_) {\n      this.adapter_.focus();\n    }\n  }\n\n  /**\n   * Deactivates the Tab\n   */\n  deactivate() {\n    // Early exit\n    if (!this.isActive()) {\n      return;\n    }\n\n    this.adapter_.removeClass(cssClasses.ACTIVE);\n    this.adapter_.setAttr(strings.ARIA_SELECTED, 'false');\n    this.adapter_.setAttr(strings.TABINDEX, '-1');\n    this.adapter_.deactivateIndicator();\n  }\n\n  /**\n   * Returns the dimensions of the Tab\n   */\n  computeDimensions(): MDCTabDimensions {\n    const rootWidth = this.adapter_.getOffsetWidth();\n    const rootLeft = this.adapter_.getOffsetLeft();\n    const contentWidth = this.adapter_.getContentOffsetWidth();\n    const contentLeft = this.adapter_.getContentOffsetLeft();\n\n    return {\n      contentLeft: rootLeft + contentLeft,\n      contentRight: rootLeft + contentLeft + contentWidth,\n      rootLeft,\n      rootRight: rootLeft + rootWidth,\n    };\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCTabFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport * from './adapter';\nexport * from './component';\nexport * from './constants';\nexport * from './foundation';\nexport * from './types';\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {MDCTextFieldCharacterCounterAdapter} from './adapter';\nimport {MDCTextFieldCharacterCounterFoundation} from './foundation';\n\nexport type MDCTextFieldCharacterCounterFactory =\n    (el: Element, foundation?: MDCTextFieldCharacterCounterFoundation) => MDCTextFieldCharacterCounter;\n\nexport class MDCTextFieldCharacterCounter extends MDCComponent<MDCTextFieldCharacterCounterFoundation> {\n  static attachTo(root: Element): MDCTextFieldCharacterCounter {\n    return new MDCTextFieldCharacterCounter(root);\n  }\n\n  get foundation(): MDCTextFieldCharacterCounterFoundation {\n    return this.foundation_;\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    const adapter: MDCTextFieldCharacterCounterAdapter = {\n      setContent: (content) => {\n        this.root_.textContent = content;\n      },\n    };\n    return new MDCTextFieldCharacterCounterFoundation(adapter);\n  }\n}\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nconst cssClasses = {\n  ROOT: 'mdc-text-field-character-counter',\n};\n\nconst strings = {\n  ROOT_SELECTOR: `.${cssClasses.ROOT}`,\n};\n\nexport {strings, cssClasses};\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {MDCTextFieldCharacterCounterAdapter} from './adapter';\nimport {cssClasses, strings} from './constants';\n\nexport class MDCTextFieldCharacterCounterFoundation extends MDCFoundation<MDCTextFieldCharacterCounterAdapter> {\n  static get cssClasses() {\n    return cssClasses;\n  }\n\n  static get strings() {\n    return strings;\n  }\n\n  /**\n   * See {@link MDCTextFieldCharacterCounterAdapter} for typing information on parameters and return types.\n   */\n  static get defaultAdapter(): MDCTextFieldCharacterCounterAdapter {\n    return {\n      setContent: () => undefined,\n    };\n  }\n\n  constructor(adapter?: Partial<MDCTextFieldCharacterCounterAdapter>) {\n    super({...MDCTextFieldCharacterCounterFoundation.defaultAdapter, ...adapter});\n  }\n\n  setCounterValue(currentLength: number, maxLength: number) {\n    currentLength = Math.min(currentLength, maxLength);\n    this.adapter_.setContent(`${currentLength} / ${maxLength}`);\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCTextFieldCharacterCounterFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport * from './adapter';\nexport * from './component';\nexport * from './foundation';\nexport {cssClasses as characterCountCssClasses, strings as characterCountStrings} from './constants';\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {applyPassive} from '@material/dom/events';\nimport * as ponyfill from '@material/dom/ponyfill';\nimport {MDCFloatingLabel, MDCFloatingLabelFactory} from '@material/floating-label/component';\nimport {MDCLineRipple, MDCLineRippleFactory} from '@material/line-ripple/component';\nimport {MDCNotchedOutline, MDCNotchedOutlineFactory} from '@material/notched-outline/component';\nimport {MDCRippleAdapter} from '@material/ripple/adapter';\nimport {MDCRipple, MDCRippleFactory} from '@material/ripple/component';\nimport {MDCRippleFoundation} from '@material/ripple/foundation';\nimport {MDCRippleCapableSurface} from '@material/ripple/types';\n\nimport {MDCTextFieldAdapter, MDCTextFieldInputAdapter, MDCTextFieldLabelAdapter, MDCTextFieldLineRippleAdapter, MDCTextFieldOutlineAdapter, MDCTextFieldRootAdapter,} from './adapter';\nimport {MDCTextFieldCharacterCounter, MDCTextFieldCharacterCounterFactory,} from './character-counter/component';\nimport {MDCTextFieldCharacterCounterFoundation} from './character-counter/foundation';\nimport {cssClasses, strings} from './constants';\nimport {MDCTextFieldFoundation} from './foundation';\nimport {MDCTextFieldHelperText, MDCTextFieldHelperTextFactory,} from './helper-text/component';\nimport {MDCTextFieldHelperTextFoundation} from './helper-text/foundation';\nimport {MDCTextFieldIcon, MDCTextFieldIconFactory} from './icon/component';\nimport {MDCTextFieldFoundationMap} from './types';\n\nexport class MDCTextField extends MDCComponent<MDCTextFieldFoundation> implements MDCRippleCapableSurface {\n  static attachTo(root: Element): MDCTextField {\n    return new MDCTextField(root);\n  }\n\n  // Public visibility for this property is required by MDCRippleCapableSurface.\n  root_!: HTMLElement; // assigned in MDCComponent constructor\n\n  ripple!: MDCRipple | null; // assigned in initialize()\n\n  // The only required sub-element.\n  private input_!: HTMLInputElement; // assigned in initialize()\n\n  // Optional sub-elements.\n  private characterCounter_!: MDCTextFieldCharacterCounter | null; // assigned in initialize()\n  private helperText_!: MDCTextFieldHelperText | null; // assigned in initialize()\n  private label_!: MDCFloatingLabel | null; // assigned in initialize()\n  private leadingIcon_!: MDCTextFieldIcon | null; // assigned in initialize()\n  private lineRipple_!: MDCLineRipple | null; // assigned in initialize()\n  private outline_!: MDCNotchedOutline | null; // assigned in initialize()\n  private trailingIcon_!: MDCTextFieldIcon | null; // assigned in initialize()\n\n  initialize(\n      rippleFactory: MDCRippleFactory = (el, foundation) => new MDCRipple(el, foundation),\n      lineRippleFactory: MDCLineRippleFactory = (el) => new MDCLineRipple(el),\n      helperTextFactory: MDCTextFieldHelperTextFactory = (el) => new MDCTextFieldHelperText(el),\n      characterCounterFactory: MDCTextFieldCharacterCounterFactory = (el) => new MDCTextFieldCharacterCounter(el),\n      iconFactory: MDCTextFieldIconFactory = (el) => new MDCTextFieldIcon(el),\n      labelFactory: MDCFloatingLabelFactory = (el) => new MDCFloatingLabel(el),\n      outlineFactory: MDCNotchedOutlineFactory = (el) => new MDCNotchedOutline(el),\n  ) {\n    this.input_ = this.root_.querySelector<HTMLInputElement>(strings.INPUT_SELECTOR)!;\n\n    const labelElement = this.root_.querySelector(strings.LABEL_SELECTOR);\n    this.label_ = labelElement ? labelFactory(labelElement) : null;\n\n    const lineRippleElement = this.root_.querySelector(strings.LINE_RIPPLE_SELECTOR);\n    this.lineRipple_ = lineRippleElement ? lineRippleFactory(lineRippleElement) : null;\n\n    const outlineElement = this.root_.querySelector(strings.OUTLINE_SELECTOR);\n    this.outline_ = outlineElement ? outlineFactory(outlineElement) : null;\n\n    // Helper text\n    const helperTextStrings = MDCTextFieldHelperTextFoundation.strings;\n    const nextElementSibling = this.root_.nextElementSibling;\n    const hasHelperLine = (nextElementSibling && nextElementSibling.classList.contains(cssClasses.HELPER_LINE));\n    const helperTextEl =\n        hasHelperLine && nextElementSibling && nextElementSibling.querySelector(helperTextStrings.ROOT_SELECTOR);\n    this.helperText_ = helperTextEl ? helperTextFactory(helperTextEl) : null;\n\n    // Character counter\n    const characterCounterStrings = MDCTextFieldCharacterCounterFoundation.strings;\n    let characterCounterEl = this.root_.querySelector(characterCounterStrings.ROOT_SELECTOR);\n    // If character counter is not found in root element search in sibling element.\n    if (!characterCounterEl && hasHelperLine && nextElementSibling) {\n      characterCounterEl = nextElementSibling.querySelector(characterCounterStrings.ROOT_SELECTOR);\n    }\n    this.characterCounter_ = characterCounterEl ? characterCounterFactory(characterCounterEl) : null;\n\n    // Leading icon\n    const leadingIconEl =\n        this.root_.querySelector(strings.LEADING_ICON_SELECTOR);\n    this.leadingIcon_ = leadingIconEl ? iconFactory(leadingIconEl) : null;\n\n    // Trailing icon\n    const trailingIconEl =\n        this.root_.querySelector(strings.TRAILING_ICON_SELECTOR);\n    this.trailingIcon_ = trailingIconEl ? iconFactory(trailingIconEl) : null;\n\n    this.ripple = this.createRipple_(rippleFactory);\n  }\n\n  destroy() {\n    if (this.ripple) {\n      this.ripple.destroy();\n    }\n    if (this.lineRipple_) {\n      this.lineRipple_.destroy();\n    }\n    if (this.helperText_) {\n      this.helperText_.destroy();\n    }\n    if (this.characterCounter_) {\n      this.characterCounter_.destroy();\n    }\n    if (this.leadingIcon_) {\n      this.leadingIcon_.destroy();\n    }\n    if (this.trailingIcon_) {\n      this.trailingIcon_.destroy();\n    }\n    if (this.label_) {\n      this.label_.destroy();\n    }\n    if (this.outline_) {\n      this.outline_.destroy();\n    }\n    super.destroy();\n  }\n\n  /**\n   * Initializes the Text Field's internal state based on the environment's\n   * state.\n   */\n  initialSyncWithDOM() {\n    this.disabled = this.input_.disabled;\n  }\n\n  get value(): string {\n    return this.foundation_.getValue();\n  }\n\n  /**\n   * @param value The value to set on the input.\n   */\n  set value(value: string) {\n    this.foundation_.setValue(value);\n  }\n\n  get disabled(): boolean {\n    return this.foundation_.isDisabled();\n  }\n\n  /**\n   * @param disabled Sets the Text Field disabled or enabled.\n   */\n  set disabled(disabled: boolean) {\n    this.foundation_.setDisabled(disabled);\n  }\n\n  get valid(): boolean {\n    return this.foundation_.isValid();\n  }\n\n  /**\n   * @param valid Sets the Text Field valid or invalid.\n   */\n  set valid(valid: boolean) {\n    this.foundation_.setValid(valid);\n  }\n\n  get required(): boolean {\n    return this.input_.required;\n  }\n\n  /**\n   * @param required Sets the Text Field to required.\n   */\n  set required(required: boolean) {\n    this.input_.required = required;\n  }\n\n  get pattern(): string {\n    return this.input_.pattern;\n  }\n\n  /**\n   * @param pattern Sets the input element's validation pattern.\n   */\n  set pattern(pattern: string) {\n    this.input_.pattern = pattern;\n  }\n\n  get minLength(): number {\n    return this.input_.minLength;\n  }\n\n  /**\n   * @param minLength Sets the input element's minLength.\n   */\n  set minLength(minLength: number) {\n    this.input_.minLength = minLength;\n  }\n\n  get maxLength(): number {\n    return this.input_.maxLength;\n  }\n\n  /**\n   * @param maxLength Sets the input element's maxLength.\n   */\n  set maxLength(maxLength: number) {\n    // Chrome throws exception if maxLength is set to a value less than zero\n    if (maxLength < 0) {\n      this.input_.removeAttribute('maxLength');\n    } else {\n      this.input_.maxLength = maxLength;\n    }\n  }\n\n  get min(): string {\n    return this.input_.min;\n  }\n\n  /**\n   * @param min Sets the input element's min.\n   */\n  set min(min: string) {\n    this.input_.min = min;\n  }\n\n  get max(): string {\n    return this.input_.max;\n  }\n\n  /**\n   * @param max Sets the input element's max.\n   */\n  set max(max: string) {\n    this.input_.max = max;\n  }\n\n  get step(): string {\n    return this.input_.step;\n  }\n\n  /**\n   * @param step Sets the input element's step.\n   */\n  set step(step: string) {\n    this.input_.step = step;\n  }\n\n  /**\n   * Sets the helper text element content.\n   */\n  set helperTextContent(content: string) {\n    this.foundation_.setHelperTextContent(content);\n  }\n\n  /**\n   * Sets the aria label of the leading icon.\n   */\n  set leadingIconAriaLabel(label: string) {\n    this.foundation_.setLeadingIconAriaLabel(label);\n  }\n\n  /**\n   * Sets the text content of the leading icon.\n   */\n  set leadingIconContent(content: string) {\n    this.foundation_.setLeadingIconContent(content);\n  }\n\n  /**\n   * Sets the aria label of the trailing icon.\n   */\n  set trailingIconAriaLabel(label: string) {\n    this.foundation_.setTrailingIconAriaLabel(label);\n  }\n\n  /**\n   * Sets the text content of the trailing icon.\n   */\n  set trailingIconContent(content: string) {\n    this.foundation_.setTrailingIconContent(content);\n  }\n\n  /**\n   * Enables or disables the use of native validation. Use this for custom validation.\n   * @param useNativeValidation Set this to false to ignore native input validation.\n   */\n  set useNativeValidation(useNativeValidation: boolean) {\n    this.foundation_.setUseNativeValidation(useNativeValidation);\n  }\n\n  /**\n   * Focuses the input element.\n   */\n  focus() {\n    this.input_.focus();\n  }\n\n  /**\n   * Recomputes the outline SVG path for the outline element.\n   */\n  layout() {\n    const openNotch = this.foundation_.shouldFloat;\n    this.foundation_.notchOutline(openNotch);\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    const adapter: MDCTextFieldAdapter = {\n      ...this.getRootAdapterMethods_(),\n      ...this.getInputAdapterMethods_(),\n      ...this.getLabelAdapterMethods_(),\n      ...this.getLineRippleAdapterMethods_(),\n      ...this.getOutlineAdapterMethods_(),\n    };\n    // tslint:enable:object-literal-sort-keys\n    return new MDCTextFieldFoundation(adapter, this.getFoundationMap_());\n  }\n\n  private getRootAdapterMethods_(): MDCTextFieldRootAdapter {\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    return {\n      addClass: (className) => this.root_.classList.add(className),\n      removeClass: (className) => this.root_.classList.remove(className),\n      hasClass: (className) => this.root_.classList.contains(className),\n      registerTextFieldInteractionHandler: (evtType, handler) => this.listen(evtType, handler),\n      deregisterTextFieldInteractionHandler: (evtType, handler) => this.unlisten(evtType, handler),\n      registerValidationAttributeChangeHandler: (handler) => {\n        const getAttributesList = (mutationsList: MutationRecord[]): string[] => {\n          return mutationsList\n              .map((mutation) => mutation.attributeName)\n              .filter((attributeName) => attributeName) as string[];\n        };\n        const observer = new MutationObserver((mutationsList) => handler(getAttributesList(mutationsList)));\n        const config = {attributes: true};\n        observer.observe(this.input_, config);\n        return observer;\n      },\n      deregisterValidationAttributeChangeHandler: (observer) => observer.disconnect(),\n    };\n    // tslint:enable:object-literal-sort-keys\n  }\n\n  private getInputAdapterMethods_(): MDCTextFieldInputAdapter {\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    return {\n      getNativeInput: () => this.input_,\n      isFocused: () => document.activeElement === this.input_,\n      registerInputInteractionHandler: (evtType, handler) =>\n        this.input_.addEventListener(evtType, handler, applyPassive()),\n      deregisterInputInteractionHandler: (evtType, handler) =>\n        this.input_.removeEventListener(evtType, handler, applyPassive()),\n    };\n    // tslint:enable:object-literal-sort-keys\n  }\n\n  private getLabelAdapterMethods_(): MDCTextFieldLabelAdapter {\n    return {\n      floatLabel: (shouldFloat) => this.label_ && this.label_.float(shouldFloat),\n      getLabelWidth: () => this.label_ ? this.label_.getWidth() : 0,\n      hasLabel: () => Boolean(this.label_),\n      shakeLabel: (shouldShake) => this.label_ && this.label_.shake(shouldShake),\n    };\n  }\n\n  private getLineRippleAdapterMethods_(): MDCTextFieldLineRippleAdapter {\n    return {\n      activateLineRipple: () => {\n        if (this.lineRipple_) {\n          this.lineRipple_.activate();\n        }\n      },\n      deactivateLineRipple: () => {\n        if (this.lineRipple_) {\n          this.lineRipple_.deactivate();\n        }\n      },\n      setLineRippleTransformOrigin: (normalizedX) => {\n        if (this.lineRipple_) {\n          this.lineRipple_.setRippleCenter(normalizedX);\n        }\n      },\n    };\n  }\n\n  private getOutlineAdapterMethods_(): MDCTextFieldOutlineAdapter {\n    return {\n      closeOutline: () => this.outline_ && this.outline_.closeNotch(),\n      hasOutline: () => Boolean(this.outline_),\n      notchOutline: (labelWidth) => this.outline_ && this.outline_.notch(labelWidth),\n    };\n  }\n\n  /**\n   * @return A map of all subcomponents to subfoundations.\n   */\n  private getFoundationMap_(): Partial<MDCTextFieldFoundationMap> {\n    return {\n      characterCounter: this.characterCounter_ ? this.characterCounter_.foundation : undefined,\n      helperText: this.helperText_ ? this.helperText_.foundation : undefined,\n      leadingIcon: this.leadingIcon_ ? this.leadingIcon_.foundation : undefined,\n      trailingIcon: this.trailingIcon_ ? this.trailingIcon_.foundation : undefined,\n    };\n  }\n\n  private createRipple_(rippleFactory: MDCRippleFactory): MDCRipple | null {\n    const isTextArea = this.root_.classList.contains(cssClasses.TEXTAREA);\n    const isOutlined = this.root_.classList.contains(cssClasses.OUTLINED);\n\n    if (isTextArea || isOutlined) {\n      return null;\n    }\n\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    const adapter: MDCRippleAdapter = {\n      ...MDCRipple.createAdapter(this),\n      isSurfaceActive: () => ponyfill.matches(this.input_, ':active'),\n      registerInteractionHandler: (evtType, handler) => this.input_.addEventListener(evtType, handler, applyPassive()),\n      deregisterInteractionHandler: (evtType, handler) =>\n        this.input_.removeEventListener(evtType, handler, applyPassive()),\n    };\n    // tslint:enable:object-literal-sort-keys\n    return rippleFactory(this.root_, new MDCRippleFoundation(adapter));\n  }\n}\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nconst strings = {\n  ARIA_CONTROLS: 'aria-controls',\n  INPUT_SELECTOR: '.mdc-text-field__input',\n  LABEL_SELECTOR: '.mdc-floating-label',\n  LEADING_ICON_SELECTOR: '.mdc-text-field__icon--leading',\n  LINE_RIPPLE_SELECTOR: '.mdc-line-ripple',\n  OUTLINE_SELECTOR: '.mdc-notched-outline',\n  TRAILING_ICON_SELECTOR: '.mdc-text-field__icon--trailing'\n};\n\nconst cssClasses = {\n  DENSE: 'mdc-text-field--dense',\n  DISABLED: 'mdc-text-field--disabled',\n  FOCUSED: 'mdc-text-field--focused',\n  FULLWIDTH: 'mdc-text-field--fullwidth',\n  HELPER_LINE: 'mdc-text-field-helper-line',\n  INVALID: 'mdc-text-field--invalid',\n  NO_LABEL: 'mdc-text-field--no-label',\n  OUTLINED: 'mdc-text-field--outlined',\n  ROOT: 'mdc-text-field',\n  TEXTAREA: 'mdc-text-field--textarea',\n  WITH_LEADING_ICON: 'mdc-text-field--with-leading-icon',\n  WITH_TRAILING_ICON: 'mdc-text-field--with-trailing-icon',\n};\n\nconst numbers = {\n  DENSE_LABEL_SCALE: 0.923,\n  LABEL_SCALE: 0.75,\n};\n\n/**\n * Whitelist based off of https://developer.mozilla.org/en-US/docs/Web/Guide/HTML/HTML5/Constraint_validation\n * under the \"Validation-related attributes\" section.\n */\nconst VALIDATION_ATTR_WHITELIST = [\n  'pattern', 'min', 'max', 'required', 'step', 'minlength', 'maxlength',\n];\n\n/**\n * Label should always float for these types as they show some UI even if value is empty.\n */\nconst ALWAYS_FLOAT_TYPES = [\n  'color', 'date', 'datetime-local', 'month', 'range', 'time', 'week',\n];\n\nexport {cssClasses, strings, numbers, VALIDATION_ATTR_WHITELIST, ALWAYS_FLOAT_TYPES};\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {SpecificEventListener} from '@material/base/types';\nimport {MDCTextFieldAdapter} from './adapter';\nimport {MDCTextFieldCharacterCounterFoundation} from './character-counter/foundation';\nimport {ALWAYS_FLOAT_TYPES, cssClasses, numbers, strings, VALIDATION_ATTR_WHITELIST} from './constants';\nimport {MDCTextFieldHelperTextFoundation} from './helper-text/foundation';\nimport {MDCTextFieldIconFoundation} from './icon/foundation';\nimport {MDCTextFieldFoundationMap, MDCTextFieldNativeInputElement} from './types';\n\ntype PointerDownEventType = 'mousedown' | 'touchstart';\ntype InteractionEventType = 'click' | 'keydown';\n\nconst POINTERDOWN_EVENTS: PointerDownEventType[] = ['mousedown', 'touchstart'];\nconst INTERACTION_EVENTS: InteractionEventType[] = ['click', 'keydown'];\n\nexport class MDCTextFieldFoundation extends MDCFoundation<MDCTextFieldAdapter> {\n  static get cssClasses() {\n    return cssClasses;\n  }\n\n  static get strings() {\n    return strings;\n  }\n\n  static get numbers() {\n    return numbers;\n  }\n\n  private get shouldAlwaysFloat_(): boolean {\n    const type = this.getNativeInput_().type;\n    return ALWAYS_FLOAT_TYPES.indexOf(type) >= 0;\n  }\n\n  get shouldFloat(): boolean {\n    return this.shouldAlwaysFloat_ || this.isFocused_ || !!this.getValue() || this.isBadInput_();\n  }\n\n  get shouldShake(): boolean {\n    return !this.isFocused_ && !this.isValid() && !!this.getValue();\n  }\n\n  /**\n   * See {@link MDCTextFieldAdapter} for typing information on parameters and return types.\n   */\n  static get defaultAdapter(): MDCTextFieldAdapter {\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    return {\n      addClass: () => undefined,\n      removeClass: () => undefined,\n      hasClass: () => true,\n      registerTextFieldInteractionHandler: () => undefined,\n      deregisterTextFieldInteractionHandler: () => undefined,\n      registerInputInteractionHandler: () => undefined,\n      deregisterInputInteractionHandler: () => undefined,\n      registerValidationAttributeChangeHandler: () => new MutationObserver(() => undefined),\n      deregisterValidationAttributeChangeHandler: () => undefined,\n      getNativeInput: () => null,\n      isFocused: () => false,\n      activateLineRipple: () => undefined,\n      deactivateLineRipple: () => undefined,\n      setLineRippleTransformOrigin: () => undefined,\n      shakeLabel: () => undefined,\n      floatLabel: () => undefined,\n      hasLabel: () => false,\n      getLabelWidth: () => 0,\n      hasOutline: () => false,\n      notchOutline: () => undefined,\n      closeOutline: () => undefined,\n    };\n    // tslint:enable:object-literal-sort-keys\n  }\n\n  private isFocused_ = false;\n  private receivedUserInput_ = false;\n  private isValid_ = true;\n  private useNativeValidation_ = true;\n\n  private readonly inputFocusHandler_: () => void;\n  private readonly inputBlurHandler_: SpecificEventListener<'blur'>;\n  private readonly inputInputHandler_: SpecificEventListener<'input'>;\n  private readonly setPointerXOffset_: SpecificEventListener<PointerDownEventType>;\n  private readonly textFieldInteractionHandler_: SpecificEventListener<InteractionEventType>;\n  private readonly validationAttributeChangeHandler_: (attributesList: string[]) => void;\n  private validationObserver_!: MutationObserver; // assigned in init()\n\n  private readonly helperText_?: MDCTextFieldHelperTextFoundation;\n  private readonly characterCounter_?: MDCTextFieldCharacterCounterFoundation;\n  private readonly leadingIcon_?: MDCTextFieldIconFoundation;\n  private readonly trailingIcon_?: MDCTextFieldIconFoundation;\n\n  /**\n   * @param adapter\n   * @param foundationMap Map from subcomponent names to their subfoundations.\n   */\n  constructor(adapter?: Partial<MDCTextFieldAdapter>, foundationMap: Partial<MDCTextFieldFoundationMap> = {}) {\n    super({...MDCTextFieldFoundation.defaultAdapter, ...adapter});\n\n    this.helperText_ = foundationMap.helperText;\n    this.characterCounter_ = foundationMap.characterCounter;\n    this.leadingIcon_ = foundationMap.leadingIcon;\n    this.trailingIcon_ = foundationMap.trailingIcon;\n\n    this.inputFocusHandler_ = () => this.activateFocus();\n    this.inputBlurHandler_ = () => this.deactivateFocus();\n    this.inputInputHandler_ = () => this.handleInput();\n    this.setPointerXOffset_ = (evt) => this.setTransformOrigin(evt);\n    this.textFieldInteractionHandler_ = () => this.handleTextFieldInteraction();\n    this.validationAttributeChangeHandler_ = (attributesList) => this.handleValidationAttributeChange(attributesList);\n  }\n\n  init() {\n    if (this.adapter_.isFocused()) {\n      this.inputFocusHandler_();\n    } else if (this.adapter_.hasLabel() && this.shouldFloat) {\n      this.notchOutline(true);\n      this.adapter_.floatLabel(true);\n    }\n\n    this.adapter_.registerInputInteractionHandler('focus', this.inputFocusHandler_);\n    this.adapter_.registerInputInteractionHandler('blur', this.inputBlurHandler_);\n    this.adapter_.registerInputInteractionHandler('input', this.inputInputHandler_);\n    POINTERDOWN_EVENTS.forEach((evtType) => {\n      this.adapter_.registerInputInteractionHandler(evtType, this.setPointerXOffset_);\n    });\n    INTERACTION_EVENTS.forEach((evtType) => {\n      this.adapter_.registerTextFieldInteractionHandler(evtType, this.textFieldInteractionHandler_);\n    });\n    this.validationObserver_ =\n        this.adapter_.registerValidationAttributeChangeHandler(this.validationAttributeChangeHandler_);\n    this.setCharacterCounter_(this.getValue().length);\n  }\n\n  destroy() {\n    this.adapter_.deregisterInputInteractionHandler('focus', this.inputFocusHandler_);\n    this.adapter_.deregisterInputInteractionHandler('blur', this.inputBlurHandler_);\n    this.adapter_.deregisterInputInteractionHandler('input', this.inputInputHandler_);\n    POINTERDOWN_EVENTS.forEach((evtType) => {\n      this.adapter_.deregisterInputInteractionHandler(evtType, this.setPointerXOffset_);\n    });\n    INTERACTION_EVENTS.forEach((evtType) => {\n      this.adapter_.deregisterTextFieldInteractionHandler(evtType, this.textFieldInteractionHandler_);\n    });\n    this.adapter_.deregisterValidationAttributeChangeHandler(this.validationObserver_);\n  }\n\n  /**\n   * Handles user interactions with the Text Field.\n   */\n  handleTextFieldInteraction() {\n    const nativeInput = this.adapter_.getNativeInput();\n    if (nativeInput && nativeInput.disabled) {\n      return;\n    }\n    this.receivedUserInput_ = true;\n  }\n\n  /**\n   * Handles validation attribute changes\n   */\n  handleValidationAttributeChange(attributesList: string[]): void {\n    attributesList.some((attributeName) => {\n      if (VALIDATION_ATTR_WHITELIST.indexOf(attributeName) > -1) {\n        this.styleValidity_(true);\n        return true;\n      }\n      return false;\n    });\n\n    if (attributesList.indexOf('maxlength') > -1) {\n      this.setCharacterCounter_(this.getValue().length);\n    }\n  }\n\n  /**\n   * Opens/closes the notched outline.\n   */\n  notchOutline(openNotch: boolean) {\n    if (!this.adapter_.hasOutline()) {\n      return;\n    }\n\n    if (openNotch) {\n      const isDense = this.adapter_.hasClass(cssClasses.DENSE);\n      const labelScale = isDense ? numbers.DENSE_LABEL_SCALE : numbers.LABEL_SCALE;\n      const labelWidth = this.adapter_.getLabelWidth() * labelScale;\n      this.adapter_.notchOutline(labelWidth);\n    } else {\n      this.adapter_.closeOutline();\n    }\n  }\n\n  /**\n   * Activates the text field focus state.\n   */\n  activateFocus() {\n    this.isFocused_ = true;\n    this.styleFocused_(this.isFocused_);\n    this.adapter_.activateLineRipple();\n    if (this.adapter_.hasLabel()) {\n      this.notchOutline(this.shouldFloat);\n      this.adapter_.floatLabel(this.shouldFloat);\n      this.adapter_.shakeLabel(this.shouldShake);\n    }\n    if (this.helperText_) {\n      this.helperText_.showToScreenReader();\n    }\n  }\n\n  /**\n   * Sets the line ripple's transform origin, so that the line ripple activate\n   * animation will animate out from the user's click location.\n   */\n  setTransformOrigin(evt: TouchEvent | MouseEvent): void {\n    const touches = (evt as TouchEvent).touches;\n    const targetEvent = touches ? touches[0] : evt;\n    const targetClientRect = (targetEvent.target as Element).getBoundingClientRect();\n    const normalizedX = (targetEvent as MouseEvent).clientX - targetClientRect.left;\n    this.adapter_.setLineRippleTransformOrigin(normalizedX);\n  }\n\n  /**\n   * Handles input change of text input and text area.\n   */\n  handleInput() {\n    this.autoCompleteFocus();\n    this.setCharacterCounter_(this.getValue().length);\n  }\n\n  /**\n   * Activates the Text Field's focus state in cases when the input value\n   * changes without user input (e.g. programmatically).\n   */\n  autoCompleteFocus() {\n    if (!this.receivedUserInput_) {\n      this.activateFocus();\n    }\n  }\n\n  /**\n   * Deactivates the Text Field's focus state.\n   */\n  deactivateFocus() {\n    this.isFocused_ = false;\n    this.adapter_.deactivateLineRipple();\n    const isValid = this.isValid();\n    this.styleValidity_(isValid);\n    this.styleFocused_(this.isFocused_);\n    if (this.adapter_.hasLabel()) {\n      this.notchOutline(this.shouldFloat);\n      this.adapter_.floatLabel(this.shouldFloat);\n      this.adapter_.shakeLabel(this.shouldShake);\n    }\n    if (!this.shouldFloat) {\n      this.receivedUserInput_ = false;\n    }\n  }\n\n  getValue(): string {\n    return this.getNativeInput_().value;\n  }\n\n  /**\n   * @param value The value to set on the input Element.\n   */\n  setValue(value: string): void {\n    // Prevent Safari from moving the caret to the end of the input when the value has not changed.\n    if (this.getValue() !== value) {\n      this.getNativeInput_().value = value;\n    }\n    this.setCharacterCounter_(value.length);\n    const isValid = this.isValid();\n    this.styleValidity_(isValid);\n    if (this.adapter_.hasLabel()) {\n      this.notchOutline(this.shouldFloat);\n      this.adapter_.floatLabel(this.shouldFloat);\n      this.adapter_.shakeLabel(this.shouldShake);\n    }\n  }\n\n  /**\n   * @return The custom validity state, if set; otherwise, the result of a native validity check.\n   */\n  isValid(): boolean {\n    return this.useNativeValidation_\n        ? this.isNativeInputValid_() : this.isValid_;\n  }\n\n  /**\n   * @param isValid Sets the custom validity state of the Text Field.\n   */\n  setValid(isValid: boolean): void {\n    this.isValid_ = isValid;\n    this.styleValidity_(isValid);\n\n    const shouldShake = !isValid && !this.isFocused_ && !!this.getValue();\n    if (this.adapter_.hasLabel()) {\n      this.adapter_.shakeLabel(shouldShake);\n    }\n  }\n\n  /**\n   * Enables or disables the use of native validation. Use this for custom validation.\n   * @param useNativeValidation Set this to false to ignore native input validation.\n   */\n  setUseNativeValidation(useNativeValidation: boolean): void {\n    this.useNativeValidation_ = useNativeValidation;\n  }\n\n  isDisabled(): boolean {\n    return this.getNativeInput_().disabled;\n  }\n\n  /**\n   * @param disabled Sets the text-field disabled or enabled.\n   */\n  setDisabled(disabled: boolean): void {\n    this.getNativeInput_().disabled = disabled;\n    this.styleDisabled_(disabled);\n  }\n\n  /**\n   * @param content Sets the content of the helper text.\n   */\n  setHelperTextContent(content: string): void {\n    if (this.helperText_) {\n      this.helperText_.setContent(content);\n    }\n  }\n\n  /**\n   * Sets the aria label of the leading icon.\n   */\n  setLeadingIconAriaLabel(label: string): void {\n    if (this.leadingIcon_) {\n      this.leadingIcon_.setAriaLabel(label);\n    }\n  }\n\n  /**\n   * Sets the text content of the leading icon.\n   */\n  setLeadingIconContent(content: string): void {\n    if (this.leadingIcon_) {\n      this.leadingIcon_.setContent(content);\n    }\n  }\n\n  /**\n   * Sets the aria label of the trailing icon.\n   */\n  setTrailingIconAriaLabel(label: string): void {\n    if (this.trailingIcon_) {\n      this.trailingIcon_.setAriaLabel(label);\n    }\n  }\n\n  /**\n   * Sets the text content of the trailing icon.\n   */\n  setTrailingIconContent(content: string): void {\n    if (this.trailingIcon_) {\n      this.trailingIcon_.setContent(content);\n    }\n  }\n\n  /**\n   * Sets character counter values that shows characters used and the total character limit.\n   */\n  private setCharacterCounter_(currentLength: number): void {\n    if (!this.characterCounter_) {\n      return;\n    }\n\n    const maxLength = this.getNativeInput_().maxLength;\n    if (maxLength === -1) {\n      throw new Error('MDCTextFieldFoundation: Expected maxlength html property on text input or textarea.');\n    }\n\n    this.characterCounter_.setCounterValue(currentLength, maxLength);\n  }\n\n  /**\n   * @return True if the Text Field input fails in converting the user-supplied value.\n   */\n  private isBadInput_(): boolean {\n    // The badInput property is not supported in IE 11 💩.\n    return this.getNativeInput_().validity.badInput || false;\n  }\n\n  /**\n   * @return The result of native validity checking (ValidityState.valid).\n   */\n  private isNativeInputValid_(): boolean {\n    return this.getNativeInput_().validity.valid;\n  }\n\n  /**\n   * Styles the component based on the validity state.\n   */\n  private styleValidity_(isValid: boolean): void {\n    const {INVALID} = MDCTextFieldFoundation.cssClasses;\n    if (isValid) {\n      this.adapter_.removeClass(INVALID);\n    } else {\n      this.adapter_.addClass(INVALID);\n    }\n    if (this.helperText_) {\n      this.helperText_.setValidity(isValid);\n    }\n  }\n\n  /**\n   * Styles the component based on the focused state.\n   */\n  private styleFocused_(isFocused: boolean): void {\n    const {FOCUSED} = MDCTextFieldFoundation.cssClasses;\n    if (isFocused) {\n      this.adapter_.addClass(FOCUSED);\n    } else {\n      this.adapter_.removeClass(FOCUSED);\n    }\n  }\n\n  /**\n   * Styles the component based on the disabled state.\n   */\n  private styleDisabled_(isDisabled: boolean): void {\n    const {DISABLED, INVALID} = MDCTextFieldFoundation.cssClasses;\n    if (isDisabled) {\n      this.adapter_.addClass(DISABLED);\n      this.adapter_.removeClass(INVALID);\n    } else {\n      this.adapter_.removeClass(DISABLED);\n    }\n\n    if (this.leadingIcon_) {\n      this.leadingIcon_.setDisabled(isDisabled);\n    }\n\n    if (this.trailingIcon_) {\n      this.trailingIcon_.setDisabled(isDisabled);\n    }\n  }\n\n  /**\n   * @return The native text input element from the host environment, or an object with the same shape for unit tests.\n   */\n  private getNativeInput_(): MDCTextFieldNativeInputElement {\n    // this.adapter_ may be undefined in foundation unit tests. This happens when testdouble is creating a mock object\n    // and invokes the shouldShake/shouldFloat getters (which in turn call getValue(), which calls this method) before\n    // init() has been called from the MDCTextField constructor. To work around that issue, we return a dummy object.\n    const nativeInput = this.adapter_ ? this.adapter_.getNativeInput() : null;\n    return nativeInput || {\n      disabled: false,\n      maxLength: -1,\n      type: 'input',\n      validity: {\n        badInput: false,\n        valid: true,\n      },\n      value: '',\n    };\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCTextFieldFoundation;\n","/**\n * @license\n * Copyright 2017 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {MDCTextFieldHelperTextAdapter} from './adapter';\nimport {MDCTextFieldHelperTextFoundation} from './foundation';\n\nexport type MDCTextFieldHelperTextFactory =\n    (el: Element, foundation?: MDCTextFieldHelperTextFoundation) => MDCTextFieldHelperText;\n\nexport class MDCTextFieldHelperText extends MDCComponent<MDCTextFieldHelperTextFoundation> {\n  static attachTo(root: Element): MDCTextFieldHelperText {\n    return new MDCTextFieldHelperText(root);\n  }\n\n  get foundation(): MDCTextFieldHelperTextFoundation {\n    return this.foundation_;\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    const adapter: MDCTextFieldHelperTextAdapter = {\n      addClass: (className) => this.root_.classList.add(className),\n      removeClass: (className) => this.root_.classList.remove(className),\n      hasClass: (className) => this.root_.classList.contains(className),\n      setAttr: (attr, value) => this.root_.setAttribute(attr, value),\n      removeAttr: (attr) => this.root_.removeAttribute(attr),\n      setContent: (content) => {\n        this.root_.textContent = content;\n      },\n    };\n    // tslint:enable:object-literal-sort-keys\n    return new MDCTextFieldHelperTextFoundation(adapter);\n  }\n}\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nconst cssClasses = {\n  HELPER_TEXT_PERSISTENT: 'mdc-text-field-helper-text--persistent',\n  HELPER_TEXT_VALIDATION_MSG: 'mdc-text-field-helper-text--validation-msg',\n  ROOT: 'mdc-text-field-helper-text',\n};\n\nconst strings = {\n  ARIA_HIDDEN: 'aria-hidden',\n  ROLE: 'role',\n  ROOT_SELECTOR: `.${cssClasses.ROOT}`,\n};\n\nexport {strings, cssClasses};\n","/**\n * @license\n * Copyright 2017 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {MDCTextFieldHelperTextAdapter} from './adapter';\nimport {cssClasses, strings} from './constants';\n\nexport class MDCTextFieldHelperTextFoundation extends MDCFoundation<MDCTextFieldHelperTextAdapter> {\n  static get cssClasses() {\n    return cssClasses;\n  }\n\n  static get strings() {\n    return strings;\n  }\n\n  /**\n   * See {@link MDCTextFieldHelperTextAdapter} for typing information on parameters and return types.\n   */\n  static get defaultAdapter(): MDCTextFieldHelperTextAdapter {\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    return {\n      addClass: () => undefined,\n      removeClass: () => undefined,\n      hasClass: () => false,\n      setAttr: () => undefined,\n      removeAttr: () => undefined,\n      setContent: () => undefined,\n    };\n    // tslint:enable:object-literal-sort-keys\n  }\n\n  constructor(adapter?: Partial<MDCTextFieldHelperTextAdapter>) {\n    super({...MDCTextFieldHelperTextFoundation.defaultAdapter, ...adapter});\n  }\n\n  /**\n   * Sets the content of the helper text field.\n   */\n  setContent(content: string) {\n    this.adapter_.setContent(content);\n  }\n\n  /**\n   * @param isPersistent Sets the persistency of the helper text.\n   */\n  setPersistent(isPersistent: boolean) {\n    if (isPersistent) {\n      this.adapter_.addClass(cssClasses.HELPER_TEXT_PERSISTENT);\n    } else {\n      this.adapter_.removeClass(cssClasses.HELPER_TEXT_PERSISTENT);\n    }\n  }\n\n  /**\n   * @param isValidation True to make the helper text act as an error validation message.\n   */\n  setValidation(isValidation: boolean) {\n    if (isValidation) {\n      this.adapter_.addClass(cssClasses.HELPER_TEXT_VALIDATION_MSG);\n    } else {\n      this.adapter_.removeClass(cssClasses.HELPER_TEXT_VALIDATION_MSG);\n    }\n  }\n\n  /**\n   * Makes the helper text visible to the screen reader.\n   */\n  showToScreenReader() {\n    this.adapter_.removeAttr(strings.ARIA_HIDDEN);\n  }\n\n  /**\n   * Sets the validity of the helper text based on the input validity.\n   */\n  setValidity(inputIsValid: boolean) {\n    const helperTextIsPersistent = this.adapter_.hasClass(cssClasses.HELPER_TEXT_PERSISTENT);\n    const helperTextIsValidationMsg = this.adapter_.hasClass(cssClasses.HELPER_TEXT_VALIDATION_MSG);\n    const validationMsgNeedsDisplay = helperTextIsValidationMsg && !inputIsValid;\n\n    if (validationMsgNeedsDisplay) {\n      this.adapter_.setAttr(strings.ROLE, 'alert');\n    } else {\n      this.adapter_.removeAttr(strings.ROLE);\n    }\n\n    if (!helperTextIsPersistent && !validationMsgNeedsDisplay) {\n      this.hide_();\n    }\n  }\n\n  /**\n   * Hides the help text from screen readers.\n   */\n  private hide_() {\n    this.adapter_.setAttr(strings.ARIA_HIDDEN, 'true');\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCTextFieldHelperTextFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport * from './adapter';\nexport * from './component';\nexport * from './foundation';\nexport {cssClasses as helperTextCssClasses, strings as helperTextStrings} from './constants';\n","/**\n * @license\n * Copyright 2017 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {MDCTextFieldIconAdapter} from './adapter';\nimport {MDCTextFieldIconFoundation} from './foundation';\n\nexport type MDCTextFieldIconFactory = (el: Element, foundation?: MDCTextFieldIconFoundation) => MDCTextFieldIcon;\n\nexport class MDCTextFieldIcon extends MDCComponent<MDCTextFieldIconFoundation> {\n  static attachTo(root: Element): MDCTextFieldIcon {\n    return new MDCTextFieldIcon(root);\n  }\n\n  get foundation(): MDCTextFieldIconFoundation {\n    return this.foundation_;\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    const adapter: MDCTextFieldIconAdapter = {\n      getAttr: (attr) => this.root_.getAttribute(attr),\n      setAttr: (attr, value) => this.root_.setAttribute(attr, value),\n      removeAttr: (attr) => this.root_.removeAttribute(attr),\n      setContent: (content) => {\n        this.root_.textContent = content;\n      },\n      registerInteractionHandler: (evtType, handler) => this.listen(evtType, handler),\n      deregisterInteractionHandler: (evtType, handler) => this.unlisten(evtType, handler),\n      notifyIconAction: () => this.emit(\n          MDCTextFieldIconFoundation.strings.ICON_EVENT, {} /* evtData */, true /* shouldBubble */),\n    };\n    // tslint:enable:object-literal-sort-keys\n    return new MDCTextFieldIconFoundation(adapter);\n  }\n}\n","/**\n * @license\n * Copyright 2016 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nconst strings = {\n  ICON_EVENT: 'MDCTextField:icon',\n  ICON_ROLE: 'button',\n};\n\nconst cssClasses = {\n  ROOT: 'mdc-text-field__icon',\n};\n\nexport {strings, cssClasses};\n","/**\n * @license\n * Copyright 2017 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {SpecificEventListener} from '@material/base/types';\nimport {MDCTextFieldIconAdapter} from './adapter';\nimport {cssClasses, strings} from './constants';\n\ntype InteractionEventType = 'click' | 'keydown';\n\nconst INTERACTION_EVENTS: InteractionEventType[] = ['click', 'keydown'];\n\nexport class MDCTextFieldIconFoundation extends MDCFoundation<MDCTextFieldIconAdapter> {\n  static get strings() {\n    return strings;\n  }\n\n  static get cssClasses() {\n    return cssClasses;\n  }\n\n  /**\n   * See {@link MDCTextFieldIconAdapter} for typing information on parameters and return types.\n   */\n  static get defaultAdapter(): MDCTextFieldIconAdapter {\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    return {\n      getAttr: () => null,\n      setAttr: () => undefined,\n      removeAttr: () => undefined,\n      setContent: () => undefined,\n      registerInteractionHandler: () => undefined,\n      deregisterInteractionHandler: () => undefined,\n      notifyIconAction: () => undefined,\n    };\n    // tslint:enable:object-literal-sort-keys\n  }\n\n  private savedTabIndex_: string | null = null;\n  private readonly interactionHandler_: SpecificEventListener<InteractionEventType>;\n\n  constructor(adapter?: Partial<MDCTextFieldIconAdapter>) {\n    super({...MDCTextFieldIconFoundation.defaultAdapter, ...adapter});\n\n    this.interactionHandler_ = (evt) => this.handleInteraction(evt);\n  }\n\n  init() {\n    this.savedTabIndex_ = this.adapter_.getAttr('tabindex');\n\n    INTERACTION_EVENTS.forEach((evtType) => {\n      this.adapter_.registerInteractionHandler(evtType, this.interactionHandler_);\n    });\n  }\n\n  destroy() {\n    INTERACTION_EVENTS.forEach((evtType) => {\n      this.adapter_.deregisterInteractionHandler(evtType, this.interactionHandler_);\n    });\n  }\n\n  setDisabled(disabled: boolean) {\n    if (!this.savedTabIndex_) {\n      return;\n    }\n\n    if (disabled) {\n      this.adapter_.setAttr('tabindex', '-1');\n      this.adapter_.removeAttr('role');\n    } else {\n      this.adapter_.setAttr('tabindex', this.savedTabIndex_);\n      this.adapter_.setAttr('role', strings.ICON_ROLE);\n    }\n  }\n\n  setAriaLabel(label: string) {\n    this.adapter_.setAttr('aria-label', label);\n  }\n\n  setContent(content: string) {\n    this.adapter_.setContent(content);\n  }\n\n  handleInteraction(evt: MouseEvent | KeyboardEvent) {\n    const isEnterKey = (evt as KeyboardEvent).key === 'Enter' || (evt as KeyboardEvent).keyCode === 13;\n    if (evt.type === 'click' || isEnterKey) {\n      evt.preventDefault();  // stop click from causing host label to focus\n                             // input\n      this.adapter_.notifyIconAction();\n    }\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCTextFieldIconFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport * from './adapter';\nexport * from './component';\nexport * from './foundation';\nexport {cssClasses as iconCssClasses, strings as iconStrings} from './constants';\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport * from './adapter';\nexport * from './component';\nexport * from './constants';\nexport * from './foundation';\nexport * from './types';\nexport * from './character-counter/index';\nexport * from './helper-text/index';\nexport * from './icon/index';\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCComponent} from '@material/base/component';\nimport {SpecificEventListener} from '@material/base/types';\nimport {MDCRipple, MDCRippleFactory} from '@material/ripple/component';\nimport {MDCTopAppBarAdapter} from './adapter';\nimport {cssClasses, strings} from './constants';\nimport {MDCFixedTopAppBarFoundation} from './fixed/foundation';\nimport {MDCTopAppBarBaseFoundation} from './foundation';\nimport {MDCShortTopAppBarFoundation} from './short/foundation';\nimport {MDCTopAppBarFoundation} from './standard/foundation';\n\nexport class MDCTopAppBar extends MDCComponent<MDCTopAppBarBaseFoundation> {\n  static attachTo(root: Element): MDCTopAppBar {\n    return new MDCTopAppBar(root);\n  }\n\n  private handleNavigationClick_!: SpecificEventListener<'click'>; // assigned in initialSyncWithDOM()\n  private handleWindowResize_!: SpecificEventListener<'resize'>; // assigned in initialSyncWithDOM()\n  private handleTargetScroll_!: SpecificEventListener<'scroll'>; // assigned in initialSyncWithDOM()\n  private navIcon_!: Element | null;\n  private iconRipples_!: MDCRipple[];\n  private scrollTarget_!: EventTarget;\n\n  initialize(rippleFactory: MDCRippleFactory = (el) => MDCRipple.attachTo(el)) {\n    this.navIcon_ = this.root_.querySelector(strings.NAVIGATION_ICON_SELECTOR);\n\n    // Get all icons in the toolbar and instantiate the ripples\n    const icons: Element[] = [].slice.call(this.root_.querySelectorAll(strings.ACTION_ITEM_SELECTOR));\n    if (this.navIcon_) {\n      icons.push(this.navIcon_);\n    }\n\n    this.iconRipples_ = icons.map((icon) => {\n      const ripple = rippleFactory(icon);\n      ripple.unbounded = true;\n      return ripple;\n    });\n\n    this.scrollTarget_ = window;\n  }\n\n  initialSyncWithDOM() {\n    this.handleNavigationClick_ = this.foundation_.handleNavigationClick.bind(this.foundation_);\n    this.handleWindowResize_ = this.foundation_.handleWindowResize.bind(this.foundation_);\n    this.handleTargetScroll_ = this.foundation_.handleTargetScroll.bind(this.foundation_);\n\n    this.scrollTarget_.addEventListener('scroll', this.handleTargetScroll_ as EventListener);\n\n    if (this.navIcon_) {\n      this.navIcon_.addEventListener('click', this.handleNavigationClick_ as EventListener);\n    }\n\n    const isFixed = this.root_.classList.contains(cssClasses.FIXED_CLASS);\n    const isShort = this.root_.classList.contains(cssClasses.SHORT_CLASS);\n    if (!isShort && !isFixed) {\n      window.addEventListener('resize', this.handleWindowResize_ as EventListener);\n    }\n  }\n\n  destroy() {\n    this.iconRipples_.forEach((iconRipple) => iconRipple.destroy());\n    this.scrollTarget_.removeEventListener('scroll', this.handleTargetScroll_ as EventListener);\n    if (this.navIcon_) {\n      this.navIcon_.removeEventListener('click', this.handleNavigationClick_ as EventListener);\n    }\n    const isFixed = this.root_.classList.contains(cssClasses.FIXED_CLASS);\n    const isShort = this.root_.classList.contains(cssClasses.SHORT_CLASS);\n    if (!isShort && !isFixed) {\n      window.removeEventListener('resize', this.handleWindowResize_ as EventListener);\n    }\n    super.destroy();\n  }\n\n  setScrollTarget(target: EventTarget) {\n    // Remove scroll handler from the previous scroll target\n    this.scrollTarget_.removeEventListener('scroll', this.handleTargetScroll_ as EventListener);\n\n    this.scrollTarget_ = target;\n\n    // Initialize scroll handler on the new scroll target\n    this.handleTargetScroll_ =\n      this.foundation_.handleTargetScroll.bind(this.foundation_);\n    this.scrollTarget_.addEventListener('scroll', this.handleTargetScroll_ as EventListener);\n  }\n\n  getDefaultFoundation() {\n    // DO NOT INLINE this variable. For backward compatibility, foundations take a Partial<MDCFooAdapter>.\n    // To ensure we don't accidentally omit any methods, we need a separate, strongly typed adapter variable.\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    const adapter: MDCTopAppBarAdapter = {\n      hasClass: (className) => this.root_.classList.contains(className),\n      addClass: (className) => this.root_.classList.add(className),\n      removeClass: (className) => this.root_.classList.remove(className),\n      setStyle: (property, value) => (this.root_ as HTMLElement).style.setProperty(property, value),\n      getTopAppBarHeight: () => this.root_.clientHeight,\n      notifyNavigationIconClicked: () => this.emit(strings.NAVIGATION_EVENT, {}),\n      getViewportScrollY: () => {\n        const win = this.scrollTarget_ as Window;\n        const el = this.scrollTarget_ as Element;\n        return win.pageYOffset !== undefined ? win.pageYOffset : el.scrollTop;\n      },\n      getTotalActionItems: () => this.root_.querySelectorAll(strings.ACTION_ITEM_SELECTOR).length,\n    };\n    // tslint:enable:object-literal-sort-keys\n\n    let foundation: MDCTopAppBarBaseFoundation;\n    if (this.root_.classList.contains(cssClasses.SHORT_CLASS)) {\n      foundation = new MDCShortTopAppBarFoundation(adapter);\n    } else if (this.root_.classList.contains(cssClasses.FIXED_CLASS)) {\n      foundation = new MDCFixedTopAppBarFoundation(adapter);\n    } else {\n      foundation = new MDCTopAppBarFoundation(adapter);\n    }\n\n    return foundation;\n  }\n}\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nconst cssClasses = {\n  FIXED_CLASS: 'mdc-top-app-bar--fixed',\n  FIXED_SCROLLED_CLASS: 'mdc-top-app-bar--fixed-scrolled',\n  SHORT_CLASS: 'mdc-top-app-bar--short',\n  SHORT_COLLAPSED_CLASS: 'mdc-top-app-bar--short-collapsed',\n  SHORT_HAS_ACTION_ITEM_CLASS: 'mdc-top-app-bar--short-has-action-item',\n};\n\nconst numbers = {\n  DEBOUNCE_THROTTLE_RESIZE_TIME_MS: 100,\n  MAX_TOP_APP_BAR_HEIGHT: 128,\n};\n\nconst strings = {\n  ACTION_ITEM_SELECTOR: '.mdc-top-app-bar__action-item',\n  NAVIGATION_EVENT: 'MDCTopAppBar:nav',\n  NAVIGATION_ICON_SELECTOR: '.mdc-top-app-bar__navigation-icon',\n  ROOT_SELECTOR: '.mdc-top-app-bar',\n  TITLE_SELECTOR: '.mdc-top-app-bar__title',\n};\n\nexport {cssClasses, numbers, strings};\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {cssClasses} from '../constants';\nimport {MDCTopAppBarFoundation} from '../standard/foundation';\n\nexport class MDCFixedTopAppBarFoundation extends MDCTopAppBarFoundation {\n  /**\n   * State variable for the previous scroll iteration top app bar state\n   */\n  private wasScrolled_ = false;\n\n  /**\n   * Scroll handler for applying/removing the modifier class on the fixed top app bar.\n   * @override\n   */\n  handleTargetScroll() {\n    const currentScroll = this.adapter_.getViewportScrollY();\n\n    if (currentScroll <= 0) {\n      if (this.wasScrolled_) {\n        this.adapter_.removeClass(cssClasses.FIXED_SCROLLED_CLASS);\n        this.wasScrolled_ = false;\n      }\n    } else {\n      if (!this.wasScrolled_) {\n        this.adapter_.addClass(cssClasses.FIXED_SCROLLED_CLASS);\n        this.wasScrolled_ = true;\n      }\n    }\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCFixedTopAppBarFoundation;\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCFoundation} from '@material/base/foundation';\nimport {MDCTopAppBarAdapter} from './adapter';\nimport {cssClasses, numbers, strings} from './constants';\n\nexport class MDCTopAppBarBaseFoundation extends MDCFoundation<MDCTopAppBarAdapter> {\n  static get strings() {\n    return strings;\n  }\n\n  static get cssClasses() {\n    return cssClasses;\n  }\n\n  static get numbers() {\n    return numbers;\n  }\n\n  /**\n   * See {@link MDCTopAppBarAdapter} for typing information on parameters and return types.\n   */\n  static get defaultAdapter(): MDCTopAppBarAdapter {\n    // tslint:disable:object-literal-sort-keys Methods should be in the same order as the adapter interface.\n    return {\n      addClass: () => undefined,\n      removeClass: () => undefined,\n      hasClass: () => false,\n      setStyle: () => undefined,\n      getTopAppBarHeight: () => 0,\n      notifyNavigationIconClicked: () => undefined,\n      getViewportScrollY: () => 0,\n      getTotalActionItems: () => 0,\n    };\n    // tslint:enable:object-literal-sort-keys\n  }\n\n  /* istanbul ignore next: optional argument is not a branch statement */\n  constructor(adapter?: Partial<MDCTopAppBarAdapter>) {\n    super({...MDCTopAppBarBaseFoundation.defaultAdapter, ...adapter});\n  }\n\n  /** Other variants of TopAppBar foundation overrides this method */\n  handleTargetScroll() {} // tslint:disable-line:no-empty\n  /** Other variants of TopAppBar foundation overrides this method */\n  handleWindowResize() {} // tslint:disable-line:no-empty\n\n  handleNavigationClick() {\n    this.adapter_.notifyNavigationIconClicked();\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCTopAppBarBaseFoundation;\n","/**\n * @license\n * Copyright 2019 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nexport * from './adapter';\nexport * from './component';\nexport * from './constants';\nexport * from './foundation';\nexport * from './fixed/foundation';\nexport * from './short/foundation';\nexport * from './standard/foundation';\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCTopAppBarAdapter} from '../adapter';\nimport {cssClasses} from '../constants';\nimport {MDCTopAppBarBaseFoundation} from '../foundation';\n\nexport class MDCShortTopAppBarFoundation extends MDCTopAppBarBaseFoundation {\n  // Public visibility for backward compatibility.\n  get isCollapsed(): boolean {\n    return this.isCollapsed_;\n  }\n\n  private isCollapsed_ = false;\n\n  private isAlwaysCollapsed_ = false;\n\n  /* istanbul ignore next: optional argument is not a branch statement */\n  constructor(adapter?: Partial<MDCTopAppBarAdapter>) {\n    super(adapter);\n  }\n\n  init() {\n    super.init();\n\n    if (this.adapter_.getTotalActionItems() > 0) {\n      this.adapter_.addClass(cssClasses.SHORT_HAS_ACTION_ITEM_CLASS);\n    }\n\n    // If initialized with SHORT_COLLAPSED_CLASS, the bar should always be collapsed\n    this.setAlwaysCollapsed(\n      this.adapter_.hasClass(cssClasses.SHORT_COLLAPSED_CLASS));\n  }\n\n  /**\n   * Set if the short top app bar should always be collapsed.\n   *\n   * @param value When `true`, bar will always be collapsed. When `false`, bar may collapse or expand based on scroll.\n   */\n  setAlwaysCollapsed(value: boolean) {\n    this.isAlwaysCollapsed_ = !!value;\n    if (this.isAlwaysCollapsed_) {\n      this.collapse_();\n    } else {\n      // let maybeCollapseBar_ determine if the bar should be collapsed\n      this.maybeCollapseBar_();\n    }\n  }\n\n  getAlwaysCollapsed() {\n    return this.isAlwaysCollapsed_;\n  }\n\n  /**\n   * Scroll handler for applying/removing the collapsed modifier class on the short top app bar.\n   * @override\n   */\n  handleTargetScroll() {\n    this.maybeCollapseBar_();\n  }\n\n  private maybeCollapseBar_() {\n    if (this.isAlwaysCollapsed_) {\n      return;\n    }\n    const currentScroll = this.adapter_.getViewportScrollY();\n\n    if (currentScroll <= 0) {\n      if (this.isCollapsed_) {\n        this.uncollapse_();\n      }\n    } else {\n      if (!this.isCollapsed_) {\n        this.collapse_();\n      }\n    }\n  }\n\n  private uncollapse_() {\n    this.adapter_.removeClass(cssClasses.SHORT_COLLAPSED_CLASS);\n    this.isCollapsed_ = false;\n  }\n\n  private collapse_() {\n    this.adapter_.addClass(cssClasses.SHORT_COLLAPSED_CLASS);\n    this.isCollapsed_ = true;\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCShortTopAppBarFoundation;\n","/**\n * @license\n * Copyright 2018 Google Inc.\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n * THE SOFTWARE.\n */\n\nimport {MDCTopAppBarAdapter} from '../adapter';\nimport {numbers} from '../constants';\nimport {MDCTopAppBarBaseFoundation} from '../foundation';\n\nconst INITIAL_VALUE = 0;\n\nexport class MDCTopAppBarFoundation extends MDCTopAppBarBaseFoundation {\n  /**\n   * Indicates if the top app bar was docked in the previous scroll handler iteration.\n   */\n  private wasDocked_ = true;\n\n  /**\n   * Indicates if the top app bar is docked in the fully shown position.\n   */\n  private isDockedShowing_ = true;\n\n  /**\n   * Variable for current scroll position of the top app bar\n   */\n  private currentAppBarOffsetTop_ = 0;\n\n  /**\n   * Used to prevent the top app bar from being scrolled out of view during resize events\n   */\n  private isCurrentlyBeingResized_ = false;\n\n  /**\n   * The timeout that's used to throttle the resize events\n   */\n  private resizeThrottleId_ = INITIAL_VALUE;\n\n  /**\n   * Used for diffs of current scroll position vs previous scroll position\n   */\n  private lastScrollPosition_: number;\n\n  /**\n   * Used to verify when the top app bar is completely showing or completely hidden\n   */\n  private topAppBarHeight_: number;\n\n  /**\n   * The timeout that's used to debounce toggling the isCurrentlyBeingResized_ variable after a resize\n   */\n  private resizeDebounceId_ = INITIAL_VALUE;\n\n  /* istanbul ignore next: optional argument is not a branch statement */\n  constructor(adapter?: Partial<MDCTopAppBarAdapter>) {\n    super(adapter);\n\n    this.lastScrollPosition_ = this.adapter_.getViewportScrollY();\n    this.topAppBarHeight_ = this.adapter_.getTopAppBarHeight();\n  }\n\n  destroy() {\n    super.destroy();\n    this.adapter_.setStyle('top', '');\n  }\n\n  /**\n   * Scroll handler for the default scroll behavior of the top app bar.\n   * @override\n   */\n  handleTargetScroll() {\n    const currentScrollPosition = Math.max(this.adapter_.getViewportScrollY(), 0);\n    const diff = currentScrollPosition - this.lastScrollPosition_;\n    this.lastScrollPosition_ = currentScrollPosition;\n\n    // If the window is being resized the lastScrollPosition_ needs to be updated but the\n    // current scroll of the top app bar should stay in the same position.\n    if (!this.isCurrentlyBeingResized_) {\n      this.currentAppBarOffsetTop_ -= diff;\n\n      if (this.currentAppBarOffsetTop_ > 0) {\n        this.currentAppBarOffsetTop_ = 0;\n      } else if (Math.abs(this.currentAppBarOffsetTop_) > this.topAppBarHeight_) {\n        this.currentAppBarOffsetTop_ = -this.topAppBarHeight_;\n      }\n\n      this.moveTopAppBar_();\n    }\n  }\n\n  /**\n   * Top app bar resize handler that throttle/debounce functions that execute updates.\n   * @override\n   */\n  handleWindowResize() {\n    // Throttle resize events 10 p/s\n    if (!this.resizeThrottleId_) {\n      this.resizeThrottleId_ = setTimeout(() => {\n        this.resizeThrottleId_ = INITIAL_VALUE;\n        this.throttledResizeHandler_();\n      }, numbers.DEBOUNCE_THROTTLE_RESIZE_TIME_MS);\n    }\n\n    this.isCurrentlyBeingResized_ = true;\n\n    if (this.resizeDebounceId_) {\n      clearTimeout(this.resizeDebounceId_);\n    }\n\n    this.resizeDebounceId_ = setTimeout(() => {\n      this.handleTargetScroll();\n      this.isCurrentlyBeingResized_ = false;\n      this.resizeDebounceId_ = INITIAL_VALUE;\n    }, numbers.DEBOUNCE_THROTTLE_RESIZE_TIME_MS);\n  }\n\n  /**\n   * Function to determine if the DOM needs to update.\n   */\n  private checkForUpdate_(): boolean {\n    const offscreenBoundaryTop = -this.topAppBarHeight_;\n    const hasAnyPixelsOffscreen = this.currentAppBarOffsetTop_ < 0;\n    const hasAnyPixelsOnscreen = this.currentAppBarOffsetTop_ > offscreenBoundaryTop;\n    const partiallyShowing = hasAnyPixelsOffscreen && hasAnyPixelsOnscreen;\n\n    // If it's partially showing, it can't be docked.\n    if (partiallyShowing) {\n      this.wasDocked_ = false;\n    } else {\n      // Not previously docked and not partially showing, it's now docked.\n      if (!this.wasDocked_) {\n        this.wasDocked_ = true;\n        return true;\n      } else if (this.isDockedShowing_ !== hasAnyPixelsOnscreen) {\n        this.isDockedShowing_ = hasAnyPixelsOnscreen;\n        return true;\n      }\n    }\n\n    return partiallyShowing;\n  }\n\n  /**\n   * Function to move the top app bar if needed.\n   */\n  private moveTopAppBar_() {\n    if (this.checkForUpdate_()) {\n      // Once the top app bar is fully hidden we use the max potential top app bar height as our offset\n      // so the top app bar doesn't show if the window resizes and the new height > the old height.\n      let offset = this.currentAppBarOffsetTop_;\n      if (Math.abs(offset) >= this.topAppBarHeight_) {\n        offset = -numbers.MAX_TOP_APP_BAR_HEIGHT;\n      }\n\n      this.adapter_.setStyle('top', offset + 'px');\n    }\n  }\n\n  /**\n   * Throttled function that updates the top app bar scrolled values if the\n   * top app bar height changes.\n   */\n  private throttledResizeHandler_() {\n    const currentHeight = this.adapter_.getTopAppBarHeight();\n    if (this.topAppBarHeight_ !== currentHeight) {\n      this.wasDocked_ = false;\n\n      // Since the top app bar has a different height depending on the screen width, this\n      // will ensure that the top app bar remains in the correct location if\n      // completely hidden and a resize makes the top app bar a different height.\n      this.currentAppBarOffsetTop_ -= this.topAppBarHeight_ - currentHeight;\n      this.topAppBarHeight_ = currentHeight;\n    }\n    this.handleTargetScroll();\n  }\n}\n\n// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.\nexport default MDCTopAppBarFoundation;\n"],"sourceRoot":""}