chrome/browser/resources/options/settings_dialog.js

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 /**
   6  * @fileoverview Base class for dialogs that require saving preferences on
   7  *     confirm and resetting preference inputs on cancel.
   8  */
   9
  10 cr.define('options', function() {
  11   /** @const */ var Page = cr.ui.pageManager.Page;
  12   /** @const */ var PageManager = cr.ui.pageManager.PageManager;
  13
  14   /**
  15    * Base class for settings dialogs.
  16    * @constructor
  17    * @param {string} name See Page constructor.
  18    * @param {string} title See Page constructor.
  19    * @param {string} pageDivName See Page constructor.
  20    * @param {HTMLButtonElement} okButton The confirmation button element.
  21    * @param {HTMLButtonElement} cancelButton The cancellation button element.
  22    * @extends {cr.ui.pageManager.Page}
  23    */
  24   function SettingsDialog(name, title, pageDivName, okButton, cancelButton) {
  25     Page.call(this, name, title, pageDivName);
  26     this.okButton = okButton;
  27     this.cancelButton = cancelButton;
  28   }
  29
  30   SettingsDialog.prototype = {
  31     __proto__: Page.prototype,
  32
  33     /** @override */
  34     initializePage: function() {
  35       this.okButton.onclick = this.handleConfirm.bind(this);
  36       this.cancelButton.onclick = this.handleCancel.bind(this);
  37     },
  38
  39     /**
  40      * Handles the confirm button by saving the dialog preferences.
  41      */
  42     handleConfirm: function() {
  43       PageManager.closeOverlay();
  44
  45       var prefs = Preferences.getInstance();
  46       var els = this.pageDiv.querySelectorAll('[dialog-pref]');
  47       for (var i = 0; i < els.length; i++) {
  48         if (els[i].pref)
  49           prefs.commitPref(els[i].pref, els[i].metric);
  50       }
  51     },
  52
  53     /**
  54      * Handles the cancel button by closing the overlay.
  55      */
  56     handleCancel: function() {
  57       PageManager.closeOverlay();
  58
  59       var prefs = Preferences.getInstance();
  60       var els = this.pageDiv.querySelectorAll('[dialog-pref]');
  61       for (var i = 0; i < els.length; i++) {
  62         if (els[i].pref)
  63           prefs.rollbackPref(els[i].pref);
  64       }
  65     },
  66   };
  67
  68   return {
  69     SettingsDialog: SettingsDialog
  70   };
  71 });