Display extension options in a WebUI overlay instead of in a new tab

chrome/browser/resources/extensions/extension_options_overlay.js

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+cr.define('extensions', function() {
+  'use strict';
+
+  /**
+   * The ExtensionOptionsOverlay will show an extension's options page using
+   * an <extensionoptions> element.
+   * @constructor
+   */
+  function ExtensionOptionsOverlay() {}
+
+  cr.addSingletonGetter(ExtensionOptionsOverlay);
+
+  ExtensionOptionsOverlay.prototype = {
+    /**
+     * The function that shows the given element in the overlay.
+     * @type {Function}
+     * @param {HTMLElement} The element to show in the overlay.
+     * @private
+     */
+    showOverlay_: undefined,
+
+    /**
+     * Initialize the page.
+     * @param {function(HTMLDivElement)} showOverlay The function to show or
+     *     hide the ExtensionOptionsOverlay; this should take a single parameter
+     *     which is either the overlay Div if the overlay should be displayed,
+     *     or null if the overlay should be hidden.
+     */
+    initializePage: function(showOverlay) {
+      var overlay = $('overlay');
+
+      cr.ui.overlay.setupOverlay(overlay);
+      cr.ui.overlay.globalInitialization();
+      overlay.addEventListener('cancelOverlay', this.handleDismiss_.bind(this));
+
+      this.showOverlay_ = showOverlay;
+    },
+
+    /**
+     * Handles a click on the close button.
+     * @param {Event} e The click event.
+     * @private
+     */
+    handleDismiss_: function(event) {
+      this.setVisible_(false);
+      var extensionoptions = document.querySelector('extensionoptions');
+      if (extensionoptions)
+        $('extension-options-overlay').removeChild(extensionoptions);
+    },
+
+    /**
+     * Associate an extension with the overlay and display it.
+     * @param {string} extensionId The id of the extension whose options page
+     *     should be displayed in the overlay.
+     * @param {string} extensionName The name of the extension, which is used
+     *     as the header of the overlay.
+     */
+    setExtensionAndShowOverlay: function(extensionId, extensionName) {
+      var extensionoptions = new ExtensionOptions();

[Vitaly Pavlenko, 2014/09/30 01:31:28]

Constructor "ExtensionOptions()" is never defined in our codebase:

https://code.google.com/p/chromium/codesearch#search/&q=%22ExtensionOptions(%...

Is this code already dead? rdevlin.cronin@, do you know the status of this code?

+      extensionoptions.extension = extensionId;
+      extensionoptions.autosize = 'on';
+
+      // TODO(ericzeng): Resize in a non-jarring way.
+      extensionoptions.onsizechanged = function(evt) {
+        $('extension-options-overlay').style.width = evt.width;
+        $('extension-options-overlay').style.height = evt.height;
+      }.bind(this);
+
+      $('extension-options-overlay').appendChild(extensionoptions);
+
+      $('extension-options-overlay-title').textContent = extensionName;
+
+      this.setVisible_(true);
+    },
+
+    /**
+     * Toggles the visibility of the ExtensionOptionsOverlay.
+     * @param {boolean} isVisible Whether the overlay should be visible.
+     * @private
+     */
+    setVisible_: function(isVisible) {
+      this.showOverlay_(isVisible ? $('extension-options-overlay') : null);
+    }
+  };
+
+  // Export
+  return {
+    ExtensionOptionsOverlay: ExtensionOptionsOverlay
+  };
+});