/*global define,console*/
define([
'../../Core/buildModuleUrl',
'../../Core/Cartesian3',
'../../Core/Clock',
'../../Core/Credit',
'../../Core/defaultValue',
'../../Core/defined',
'../../Core/defineProperties',
'../../Core/destroyObject',
'../../Core/DeveloperError',
'../../Core/Ellipsoid',
'../../Core/formatError',
'../../Core/requestAnimationFrame',
'../../Core/ScreenSpaceEventHandler',
'../../Scene/BingMapsImageryProvider',
'../../Scene/Globe',
'../../Scene/Moon',
'../../Scene/Scene',
'../../Scene/SceneMode',
'../../Scene/SkyAtmosphere',
'../../Scene/SkyBox',
'../../Scene/Sun',
'../getElement'
], function(
buildModuleUrl,
Cartesian3,
Clock,
Credit,
defaultValue,
defined,
defineProperties,
destroyObject,
DeveloperError,
Ellipsoid,
formatError,
requestAnimationFrame,
ScreenSpaceEventHandler,
BingMapsImageryProvider,
Globe,
Moon,
Scene,
SceneMode,
SkyAtmosphere,
SkyBox,
Sun,
getElement) {
"use strict";
function getDefaultSkyBoxUrl(suffix) {
return buildModuleUrl('Assets/Textures/SkyBox/tycho2t3_80_' + suffix + '.jpg');
}
function startRenderLoop(widget) {
widget._renderLoopRunning = true;
var lastFrameTime = 0;
function render(frameTime) {
if (widget.isDestroyed()) {
return;
}
if (widget._useDefaultRenderLoop) {
try {
var targetFrameRate = widget._targetFrameRate;
if (!defined(targetFrameRate)) {
widget.resize();
widget.render();
requestAnimationFrame(render);
} else {
var interval = 1000.0 / targetFrameRate;
var delta = frameTime - lastFrameTime;
if (delta > interval) {
widget.resize();
widget.render();
lastFrameTime = frameTime - (delta % interval);
}
requestAnimationFrame(render);
}
} catch (error) {
widget._useDefaultRenderLoop = false;
widget._renderLoopRunning = false;
if (widget._showRenderLoopErrors) {
var title = 'An error occurred while rendering. Rendering has stopped.';
widget.showErrorPanel(title, undefined, error);
}
}
} else {
widget._renderLoopRunning = false;
}
}
requestAnimationFrame(render);
}
function configureCanvasSize(widget) {
var canvas = widget._canvas;
var width = canvas.clientWidth;
var height = canvas.clientHeight;
var zoomFactor = defaultValue(window.devicePixelRatio, 1.0) * widget._resolutionScale;
widget._canvasWidth = width;
widget._canvasHeight = height;
width *= zoomFactor;
height *= zoomFactor;
canvas.width = width;
canvas.height = height;
widget._canRender = width !== 0 && height !== 0;
}
function configureCameraFrustum(widget) {
var canvas = widget._canvas;
var width = canvas.width;
var height = canvas.height;
if (width !== 0 && height !== 0) {
var frustum = widget._scene.camera.frustum;
if (defined(frustum.aspectRatio)) {
frustum.aspectRatio = width / height;
} else {
frustum.top = frustum.right * (height / width);
frustum.bottom = -frustum.top;
}
}
}
var cesiumLogoData = 'data:image/png;base64,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';
/**
* A widget containing a Cesium scene.
*
* @alias CesiumWidget
* @constructor
*
* @param {Element|String} container The DOM element or ID that will contain the widget.
* @param {Object} [options] Object with the following properties:
* @param {Clock} [options.clock=new Clock()] The clock to use to control current time.
* @param {ImageryProvider} [options.imageryProvider=new BingMapsImageryProvider()] The imagery provider to serve as the base layer. If set to false, no imagery provider will be added.
* @param {TerrainProvider} [options.terrainProvider=new EllipsoidTerrainProvider] The terrain provider.
* @param {SkyBox} [options.skyBox] The skybox used to render the stars. When <code>undefined</code>, the default stars are used.
* @param {SceneMode} [options.sceneMode=SceneMode.SCENE3D] The initial scene mode.
* @param {Boolean} [options.scene3DOnly=false] When <code>true</code>, each geometry instance will only be rendered in 3D to save GPU memory.
* @param {Boolean} [options.orderIndependentTranslucency=true] If true and the configuration supports it, use order independent translucency.
* @param {MapProjection} [options.mapProjection=new GeographicProjection()] The map projection to use in 2D and Columbus View modes.
* @param {Boolean} [options.useDefaultRenderLoop=true] True if this widget should control the render loop, false otherwise.
* @param {Number} [options.targetFrameRate] The target frame rate when using the default render loop.
* @param {Boolean} [options.showRenderLoopErrors=true] If true, this widget will automatically display an HTML panel to the user containing the error, if a render loop error occurs.
* @param {Object} [options.contextOptions] Context and WebGL creation properties corresponding to <code>options</code> passed to {@link Scene}.
* @param {Element|String} [options.creditContainer] The DOM element or ID that will contain the {@link CreditDisplay}. If not specified, the credits are added
* to the bottom of the widget itself.
*
* @exception {DeveloperError} Element with id "container" does not exist in the document.
*
* @demo {@link http://cesiumjs.org/Cesium/Apps/Sandcastle/index.html?src=Cesium%20Widget.html|Cesium Sandcastle Cesium Widget Demo}
*
* @example
* // For each example, include a link to CesiumWidget.css stylesheet in HTML head,
* // and in the body, include: <div id="cesiumContainer"></div>
*
* //Widget with no terrain and default Bing Maps imagery provider.
* var widget = new Cesium.CesiumWidget('cesiumContainer');
*
* //Widget with OpenStreetMaps imagery provider and Cesium terrain provider hosted by AGI.
* var widget = new Cesium.CesiumWidget('cesiumContainer', {
* imageryProvider : new Cesium.OpenStreetMapImageryProvider(),
* terrainProvider : new Cesium.CesiumTerrainProvider({
* url : '//cesiumjs.org/smallterrain',
* credit : 'Terrain data courtesy Analytical Graphics, Inc.'
* }),
* // Use high-res stars downloaded from https://github.com/AnalyticalGraphicsInc/cesium-assets
* skyBox : new Cesium.SkyBox({
* sources : {
* positiveX : 'stars/TychoSkymapII.t3_08192x04096_80_px.jpg',
* negativeX : 'stars/TychoSkymapII.t3_08192x04096_80_mx.jpg',
* positiveY : 'stars/TychoSkymapII.t3_08192x04096_80_py.jpg',
* negativeY : 'stars/TychoSkymapII.t3_08192x04096_80_my.jpg',
* positiveZ : 'stars/TychoSkymapII.t3_08192x04096_80_pz.jpg',
* negativeZ : 'stars/TychoSkymapII.t3_08192x04096_80_mz.jpg'
* }
* }),
* // Show Columbus View map with Web Mercator projection
* sceneMode : Cesium.SceneMode.COLUMBUS_VIEW,
* mapProjection : new Cesium.WebMercatorProjection()
* });
*/
var CesiumWidget = function(container, options) {
//>>includeStart('debug', pragmas.debug);
if (!defined(container)) {
throw new DeveloperError('container is required.');
}
//>>includeEnd('debug');
container = getElement(container);
options = defaultValue(options, {});
//Configure the widget DOM elements
var element = document.createElement('div');
element.className = 'cesium-widget';
container.appendChild(element);
var canvas = document.createElement('canvas');
canvas.oncontextmenu = function() {
return false;
};
canvas.onselectstart = function() {
return false;
};
element.appendChild(canvas);
var creditContainer = document.createElement('div');
creditContainer.className = 'cesium-widget-credits';
var creditContainerContainer = defined(options.creditContainer) ? getElement(options.creditContainer) : element;
creditContainerContainer.appendChild(creditContainer);
this._element = element;
this._container = container;
this._canvas = canvas;
this._canvasWidth = 0;
this._canvasHeight = 0;
this._creditContainer = creditContainer;
this._canRender = false;
this._renderLoopRunning = false;
this._showRenderLoopErrors = defaultValue(options.showRenderLoopErrors, true);
this._resolutionScale = 1.0;
this._forceResize = false;
this._clock = defined(options.clock) ? options.clock : new Clock();
configureCanvasSize(this);
try {
var scene = new Scene({
canvas : canvas,
contextOptions : options.contextOptions,
creditContainer : creditContainer,
mapProjection : options.mapProjection,
orderIndependentTranslucency : options.orderIndependentTranslucency,
scene3DOnly : defaultValue(options.scene3DOnly, false)
});
this._scene = scene;
scene.camera.constrainedAxis = Cartesian3.UNIT_Z;
configureCameraFrustum(this);
var ellipsoid = Ellipsoid.WGS84;
var creditDisplay = scene.frameState.creditDisplay;
var cesiumCredit = new Credit('Cesium', cesiumLogoData, 'http://cesiumjs.org/');
creditDisplay.addDefaultCredit(cesiumCredit);
var globe = new Globe(ellipsoid);
this._globe = globe;
scene.globe = globe;
var skyBox = options.skyBox;
if (!defined(skyBox)) {
skyBox = new SkyBox({
sources : {
positiveX : getDefaultSkyBoxUrl('px'),
negativeX : getDefaultSkyBoxUrl('mx'),
positiveY : getDefaultSkyBoxUrl('py'),
negativeY : getDefaultSkyBoxUrl('my'),
positiveZ : getDefaultSkyBoxUrl('pz'),
negativeZ : getDefaultSkyBoxUrl('mz')
}
});
}
scene.skyBox = skyBox;
scene.skyAtmosphere = new SkyAtmosphere(ellipsoid);
scene.sun = new Sun();
scene.moon = new Moon();
//Set the base imagery layer
var imageryProvider = options.imageryProvider;
if (!defined(imageryProvider)) {
imageryProvider = new BingMapsImageryProvider({
url : '//dev.virtualearth.net'
});
}
if (imageryProvider !== false) {
scene.imageryLayers.addImageryProvider(imageryProvider);
}
//Set the terrain provider if one is provided.
if (defined(options.terrainProvider)) {
scene.terrainProvider = options.terrainProvider;
}
this._screenSpaceEventHandler = new ScreenSpaceEventHandler(canvas);
if (defined(options.sceneMode)) {
if (options.sceneMode === SceneMode.SCENE2D) {
this._scene.morphTo2D(0);
}
if (options.sceneMode === SceneMode.COLUMBUS_VIEW) {
this._scene.morphToColumbusView(0);
}
}
this._useDefaultRenderLoop = undefined;
this.useDefaultRenderLoop = defaultValue(options.useDefaultRenderLoop, true);
this._targetFrameRate = undefined;
this.targetFrameRate = options.targetFrameRate;
var that = this;
scene.renderError.addEventListener(function(scene, error) {
that._useDefaultRenderLoop = false;
that._renderLoopRunning = false;
if (that._showRenderLoopErrors) {
var title = 'An error occurred while rendering. Rendering has stopped.';
that.showErrorPanel(title, undefined, error);
}
});
} catch (error) {
var title = 'Error constructing CesiumWidget.';
var message = 'Visit <a href="http://get.webgl.org">http://get.webgl.org</a> to verify that your web browser and hardware support WebGL. Consider trying a different web browser or updating your video drivers. Detailed error information is below:';
this.showErrorPanel(title, message, error);
throw error;
}
};
defineProperties(CesiumWidget.prototype, {
/**
* Gets the parent container.
* @memberof CesiumWidget.prototype
*
* @type {Element}
*/
container : {
get : function() {
return this._container;
}
},
/**
* Gets the canvas.
* @memberof CesiumWidget.prototype
*
* @type {Canvas}
*/
canvas : {
get : function() {
return this._canvas;
}
},
/**
* Gets the credit container.
* @memberof CesiumWidget.prototype
*
* @type {Element}
*/
creditContainer: {
get : function() {
return this._creditContainer;
}
},
/**
* Gets the scene.
* @memberof CesiumWidget.prototype
*
* @type {Scene}
*/
scene : {
get : function() {
return this._scene;
}
},
/**
* Gets the collection of image layers that will be rendered on the globe.
* @memberof Viewer.prototype
*
* @type {ImageryLayerCollection}
* @readonly
*/
imageryLayers : {
get : function() {
return this._scene.imageryLayers;
}
},
/**
* The terrain provider providing surface geometry for the globe.
* @memberof CesiumWidget.prototype
*
* @type {TerrainProvider}
*/
terrainProvider : {
get : function() {
return this._scene.terrainProvider;
},
set : function(terrainProvider) {
this._scene.terrainProvider = terrainProvider;
}
},
/**
* Gets the camera.
* @memberof CesiumWidget.prototype
*
* @type {Camera}
* @readonly
*/
camera : {
get : function() {
return this._scene.camera;
}
},
/**
* Gets the clock.
* @memberof CesiumWidget.prototype
*
* @type {Clock}
*/
clock : {
get : function() {
return this._clock;
}
},
/**
* Gets the screen space event handler.
* @memberof CesiumWidget.prototype
*
* @type {ScreenSpaceEventHandler}
*/
screenSpaceEventHandler : {
get : function() {
return this._screenSpaceEventHandler;
}
},
/**
* Gets or sets the target frame rate of the widget when <code>useDefaultRenderLoop</code>
* is true. If undefined, the browser's {@link requestAnimationFrame} implementation
* determines the frame rate. This value must be greater than 0 and a value higher than
* the underlying requestAnimationFrame implementatin will have no affect.
* @memberof CesiumWidget.prototype
*
* @type {Number}
*/
targetFrameRate : {
get : function() {
return this._targetFrameRate;
},
set : function(value) {
if (value <= 0) {
throw new DeveloperError('targetFrameRate must be greater than 0.');
}
this._targetFrameRate = value;
}
},
/**
* Gets or sets whether or not this widget should control the render loop.
* If set to true the widget will use {@link requestAnimationFrame} to
* perform rendering and resizing of the widget, as well as drive the
* simulation clock. If set to false, you must manually call the
* <code>resize</code>, <code>render</code> methods as part of a custom
* render loop. If an error occurs during rendering, {@link Scene}'s
* <code>renderError</code> event will be raised and this property
* will be set to false. It must be set back to true to continue rendering
* after the error.
* @memberof CesiumWidget.prototype
*
* @type {Boolean}
*/
useDefaultRenderLoop : {
get : function() {
return this._useDefaultRenderLoop;
},
set : function(value) {
if (this._useDefaultRenderLoop !== value) {
this._useDefaultRenderLoop = value;
if (value && !this._renderLoopRunning) {
startRenderLoop(this);
}
}
}
},
/**
* Gets or sets a scaling factor for rendering resolution. Values less than 1.0 can improve
* performance on less powerful devices while values greater than 1.0 will render at a higher
* resolution and then scale down, resulting in improved visual fidelity.
* For example, if the widget is laid out at a size of 640x480, setting this value to 0.5
* will cause the scene to be rendered at 320x240 and then scaled up while setting
* it to 2.0 will cause the scene to be rendered at 1280x960 and then scaled down.
* @memberof CesiumWidget.prototype
*
* @type {Number}
* @default 1.0
*/
resolutionScale : {
get : function() {
return this._resolutionScale;
},
set : function(value) {
if (value <= 0) {
throw new DeveloperError('resolutionScale must be greater than 0.');
}
this._resolutionScale = value;
this._forceResize = true;
}
}
});
/**
* Show an error panel to the user containing a title and a longer error message,
* which can be dismissed using an OK button. This panel is displayed automatically
* when a render loop error occurs, if showRenderLoopErrors was not false when the
* widget was constructed.
*
* @param {String} title The title to be displayed on the error panel. This string is interpreted as text.
* @param {String} message A helpful, user-facing message to display prior to the detailed error information. This string is interpreted as HTML.
* @param {String} [error] The error to be displayed on the error panel. This string is formatted using {@link formatError} and then displayed as text.
*/
CesiumWidget.prototype.showErrorPanel = function(title, message, error) {
var element = this._element;
var overlay = document.createElement('div');
overlay.className = 'cesium-widget-errorPanel';
var content = document.createElement('div');
content.className = 'cesium-widget-errorPanel-content';
overlay.appendChild(content);
var errorHeader = document.createElement('div');
errorHeader.className = 'cesium-widget-errorPanel-header';
errorHeader.appendChild(document.createTextNode(title));
content.appendChild(errorHeader);
var errorPanelScroller = document.createElement('div');
errorPanelScroller.className = 'cesium-widget-errorPanel-scroll';
content.appendChild(errorPanelScroller);
var resizeCallback = function() {
errorPanelScroller.style.maxHeight = Math.max(Math.round(element.clientHeight * 0.9 - 100), 30) + 'px';
};
resizeCallback();
if (defined(window.addEventListener)) {
window.addEventListener('resize', resizeCallback, false);
}
if (defined(message)) {
var errorMessage = document.createElement('div');
errorMessage.className = 'cesium-widget-errorPanel-message';
errorMessage.innerHTML = '<p>' + message + '</p>';
errorPanelScroller.appendChild(errorMessage);
}
var errorDetails = '(no error details available)';
if (defined(error)) {
errorDetails = formatError(error);
}
var errorMessageDetails = document.createElement('div');
errorMessageDetails.className = 'cesium-widget-errorPanel-message';
errorMessageDetails.appendChild(document.createTextNode(errorDetails));
errorPanelScroller.appendChild(errorMessageDetails);
var buttonPanel = document.createElement('div');
buttonPanel.className = 'cesium-widget-errorPanel-buttonPanel';
content.appendChild(buttonPanel);
var okButton = document.createElement('button');
okButton.setAttribute('type', 'button');
okButton.className = 'cesium-button';
okButton.appendChild(document.createTextNode('OK'));
okButton.onclick = function() {
if (defined(resizeCallback) && defined(window.removeEventListener)) {
window.removeEventListener('resize', resizeCallback, false);
}
element.removeChild(overlay);
};
buttonPanel.appendChild(okButton);
element.appendChild(overlay);
console.error(title + '\n' + message + '\n' + errorDetails);
};
/**
* @returns {Boolean} true if the object has been destroyed, false otherwise.
*/
CesiumWidget.prototype.isDestroyed = function() {
return false;
};
/**
* Destroys the widget. Should be called if permanently
* removing the widget from layout.
*/
CesiumWidget.prototype.destroy = function() {
this._scene = this._scene && this._scene.destroy();
this._container.removeChild(this._element);
destroyObject(this);
};
/**
* Updates the canvas size, camera aspect ratio, and viewport size.
* This function is called automatically as needed unless
* <code>useDefaultRenderLoop</code> is set to false.
*/
CesiumWidget.prototype.resize = function() {
var canvas = this._canvas;
var width = canvas.clientWidth;
var height = canvas.clientHeight;
if (!this._forceResize && this._canvasWidth === width && this._canvasHeight === height) {
return;
}
this._forceResize = false;
configureCanvasSize(this);
configureCameraFrustum(this);
};
/**
* Renders the scene. This function is called automatically
* unless <code>useDefaultRenderLoop</code> is set to false;
*/
CesiumWidget.prototype.render = function() {
this._scene.initializeFrame();
var currentTime = this._clock.tick();
if (this._canRender) {
this._scene.render(currentTime);
}
};
return CesiumWidget;
});