/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

"use strict";

// This is loaded into chrome windows with the subscript loader. Wrap in
// a block to prevent accidentally leaking globals onto `window`.
{
class MozDeck extends MozXULElement {
  set selectedIndex(val) {
    if (this.selectedIndex == val) return val;
    this.setAttribute("selectedIndex", val);
    var event = document.createEvent("Events");
    event.initEvent("select", true, true);
    this.dispatchEvent(event);
    return val;
  }

  get selectedIndex() {
    return this.getAttribute("selectedIndex") || "0";
  }

  set selectedPanel(val) {
    var selectedIndex = -1;
    for (var panel = val; panel != null; panel = panel.previousElementSibling)
      ++selectedIndex;
    this.selectedIndex = selectedIndex;
    return val;
  }

  get selectedPanel() {
    return this.children[this.selectedIndex];
  }
}

customElements.define("deck", MozDeck);

class MozDropmarker extends MozXULElement {
  connectedCallback() {
    // Only create the image the first time we are connected
    if (!this.firstElementChild) {
      let image = document.createXULElement("image");
      image.classList.add("dropmarker-icon");
      this.appendChild(image);
    }
  }
}

customElements.define("dropmarker", MozDropmarker);

class MozCommandSet extends MozXULElement {
  connectedCallback() {
    if (this.getAttribute("commandupdater") === "true") {
      const events = this.getAttribute("events") || "*";
      const targets = this.getAttribute("targets") || "*";
      document.commandDispatcher.addCommandUpdater(this, events, targets);
    }
  }

  disconnectedCallback() {
    if (this.getAttribute("commandupdater") === "true") {
      document.commandDispatcher.removeCommandUpdater(this);
    }
  }
}

customElements.define("commandset", MozCommandSet);
}