import {
  getTabbableElements
} from "./chunk.DVN52LS5.js";

// src/internal/support.ts
function isPreventScrollSupported() {
  let supported = false;
  document.createElement("div").focus({
    get preventScroll() {
      supported = true;
      return false;
    }
  });
  return supported;
}

// src/internal/modal.ts
var activeModals = [];
var Modal = class {
  constructor(element) {
    this.tabDirection = "forward";
    this.element = element;
    this.handleFocusIn = this.handleFocusIn.bind(this);
    this.handleKeyDown = this.handleKeyDown.bind(this);
  }
  activate() {
    activeModals.push(this.element);
    document.addEventListener("focusin", this.handleFocusIn);
    document.addEventListener("keydown", this.handleKeyDown);
  }
  deactivate() {
    activeModals = activeModals.filter((modal) => modal !== this.element);
    document.removeEventListener("focusin", this.handleFocusIn);
    document.removeEventListener("keydown", this.handleKeyDown);
  }
  isActive() {
    return activeModals[activeModals.length - 1] === this.element;
  }
  handleFocusIn(event) {
    const path = event.composedPath();
    if (this.isActive() && !path.includes(this.element)) {
      const tabbableElements = getTabbableElements(this.element);
      const index = this.tabDirection === "backward" ? tabbableElements.length - 1 : 0;
      tabbableElements[index].focus({ preventScroll: true });
    }
  }
  handleKeyDown(event) {
    if (event.key === "Tab" && event.shiftKey) {
      this.tabDirection = "backward";
      setTimeout(() => this.tabDirection = "forward");
    }
  }
};
var modal_default = Modal;

export {
  isPreventScrollSupported,
  modal_default
};