gecko-dev/toolkit/content/widgets/remote-browser.xml

<?xml version="1.0"?>

<!-- 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/. -->

<bindings id="firefoxBrowserBindings"
          xmlns="http://www.mozilla.org/xbl"
          xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">

  <binding id="remote-browser" extends="chrome://global/content/bindings/browser.xml#browser">

    <implementation type="application/javascript" implements="nsIObserver, nsIDOMEventListener, nsIMessageListener, nsIMessageListener">

      <field name="_securityUI">null</field>

      <property name="securityUI"
                readonly="true">
        <getter><![CDATA[
          if (!this._securityUI) {
            let jsm = "resource://gre/modules/RemoteSecurityUI.jsm";
            let RemoteSecurityUI = Components.utils.import(jsm, {}).RemoteSecurityUI;
            this._securityUI = new RemoteSecurityUI();
          }

          // We want to double-wrap the JS implemented interface, so that QI and instanceof works.
          var ptr = Cc["@mozilla.org/supports-interface-pointer;1"].
                        createInstance(Ci.nsISupportsInterfacePointer);
          ptr.data = this._securityUI;
          return ptr.data.QueryInterface(Ci.nsISecureBrowserUI);
        ]]></getter>
      </property>

      <field name="_remoteWebNavigation">null</field>

      <property name="webNavigation" readonly="true">
        <getter>
          <![CDATA[
            if (!this._remoteWebNavigation) {
              let jsm = "resource://gre/modules/RemoteWebNavigation.jsm";
              let RemoteWebNavigation = Cu.import(jsm, {}).RemoteWebNavigation;
              this._remoteWebNavigation = new RemoteWebNavigation(this);
            }
            return this._remoteWebNavigation;
          ]]>
        </getter>
      </property>

      <field name="_remoteWebProgress">null</field>

      <property name="webProgress" readonly="true">
      	<getter>
      	  <![CDATA[
            if (!this._remoteWebProgress) {
              let jsm = "resource://gre/modules/RemoteWebProgress.jsm";
              let RemoteWebProgressManager = Cu.import(jsm, {}).RemoteWebProgressManager;
              this._remoteWebProgress = new RemoteWebProgressManager(this)
                                         .topLevelWebProgress;
            }
            return this._remoteWebProgress;
      	  ]]>
      	</getter>
      </property>

      <field name="_documentURI">null</field>

      <property name="documentURI"
                onget="return this._documentURI;"
                readonly="true"/>

      <field name="_contentTitle">""</field>

      <property name="contentTitle"
                onget="return this._contentTitle"
                readonly="true"/>

      <field name="_characterSet">null</field>

      <property name="characterSet"
                onget="return this._characterSet"
                readonly="true"/>

      <field name="_contentWindow">null</field>

      <property name="contentWindow"
                onget="return this._contentWindow"
                readonly="true"/>

      <property name="contentDocument"
                onget="return this.contentWindow ? this.contentWindow.document : null"
                readonly="true"/>

      <field name="_imageDocument">null</field>

      <property name="imageDocument"
                onget="return this._imageDocument"
                readonly="true"/>

      <constructor>
        <![CDATA[
          this.messageManager.addMessageListener("DOMTitleChanged", this);
          this.messageManager.addMessageListener("ImageDocumentLoaded", this);
          this.messageManager.loadFrameScript("chrome://global/content/browser-child.js", true);

          if (this.hasAttribute("selectpopup")) {
            this.messageManager.addMessageListener("Forms:ShowDropDown", this);
            this.messageManager.addMessageListener("Forms:HideDropDown", this);
            this.messageManager.loadFrameScript("chrome://global/content/select-child.js", true);
          }

          let jsm = "resource://gre/modules/RemoteController.jsm";
          let RemoteController = Components.utils.import(jsm, {}).RemoteController;
          this._controller = new RemoteController(this);
          this.controllers.appendController(this._controller);

          jsm = "resource://gre/modules/RemoteAddonsParent.jsm";
          let RemoteAddonsParent = Components.utils.import(jsm, {}).RemoteAddonsParent;
          RemoteAddonsParent.init();
        ]]>
      </constructor>

      <method name="receiveMessage">
        <parameter name="aMessage"/>
        <body><![CDATA[
          let data = aMessage.data;
          switch (aMessage.name) {
            case "DOMTitleChanged":
              this._contentTitle = data.title;
              break;
            case "ImageDocumentLoaded":
              this._imageDocument = {
                width: data.width,
                height: data.height
              };
              break;

            case "Forms:ShowDropDown": {
              Cu.import("resource://gre/modules/SelectParentHelper.jsm");
              let dropdown = document.getElementById(this.getAttribute("selectpopup"));
              SelectParentHelper.populate(dropdown, data.options, data.selectedIndex);
              SelectParentHelper.open(this, dropdown, data.rect);
              break;
            }

            case "Forms:HideDropDown": {
              Cu.import("resource://gre/modules/SelectParentHelper.jsm");
              let dropdown = document.getElementById(this.getAttribute("selectpopup"));
              SelectParentHelper.hide(dropdown);
            }
          }
        ]]></body>
      </method>

    </implementation>

  </binding>

</bindings>