chrome/browser/resources/options/options_page.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 cr.define('options', function() {
   6   /** @const */ var FocusOutlineManager = cr.ui.FocusOutlineManager;
   7
   8   var OptionsPage = {
   9     /**
  10      * This is the absolute difference maintained between standard and
  11      * fixed-width font sizes. Refer http://crbug.com/91922.
  12      * @const
  13      */
  14     SIZE_DIFFERENCE_FIXED_STANDARD: 3,
  15
  16     /**
  17      * Initializes the complete options page. This will cause all C++ handlers
  18      * to be invoked to do final setup.
  19      */
  20     initialize: function() {
  21       chrome.send('coreOptionsInitialize');
  22     },
  23
  24     /**
  25      * Shows the tab contents for the given navigation tab.
  26      * @param {Node} tab The tab that the user clicked.
  27      */
  28     showTab: function(tab) {
  29       // Search parents until we find a tab, or the nav bar itself. This allows
  30       // tabs to have child nodes, e.g. labels in separately-styled spans.
  31       while (tab && tab.classList &&
  32              !tab.classList.contains('subpages-nav-tabs') &&
  33              !tab.classList.contains('tab')) {
  34         tab = tab.parentNode;
  35       }
  36       if (!tab || !tab.classList || !tab.classList.contains('tab'))
  37         return;
  38
  39       // Find tab bar of the tab.
  40       var tabBar = tab;
  41       while (tabBar && tabBar.classList &&
  42              !tabBar.classList.contains('subpages-nav-tabs')) {
  43         tabBar = tabBar.parentNode;
  44       }
  45       if (!tabBar || !tabBar.classList)
  46         return;
  47
  48       if (tabBar.activeNavTab != null) {
  49         tabBar.activeNavTab.classList.remove('active-tab');
  50         $(tabBar.activeNavTab.getAttribute('tab-contents')).classList.
  51             remove('active-tab-contents');
  52       }
  53
  54       tab.classList.add('active-tab');
  55       $(tab.getAttribute('tab-contents')).classList.add('active-tab-contents');
  56       tabBar.activeNavTab = tab;
  57     },
  58
  59     /**
  60      * Shows or hides options for clearing Flash LSOs.
  61      * @param {boolean} enabled Whether plugin data can be cleared.
  62      */
  63     setClearPluginLSODataEnabled: function(enabled) {
  64       if (enabled) {
  65         document.documentElement.setAttribute(
  66             'flashPluginSupportsClearSiteData', '');
  67       } else {
  68         document.documentElement.removeAttribute(
  69             'flashPluginSupportsClearSiteData');
  70       }
  71       if (navigator.plugins['Shockwave Flash'])
  72         document.documentElement.setAttribute('hasFlashPlugin', '');
  73     },
  74
  75     /**
  76      * Shows or hides Pepper Flash settings.
  77      * @param {boolean} enabled Whether Pepper Flash settings should be enabled.
  78      */
  79     setPepperFlashSettingsEnabled: function(enabled) {
  80       if (enabled) {
  81         document.documentElement.setAttribute(
  82             'enablePepperFlashSettings', '');
  83       } else {
  84         document.documentElement.removeAttribute(
  85             'enablePepperFlashSettings');
  86       }
  87     },
  88
  89     /**
  90      * Sets whether Settings is shown as a standalone page in a window for the
  91      * app launcher settings "app".
  92      * @param {boolean} isSettingsApp Whether this page is shown standalone.
  93      */
  94     setIsSettingsApp: function(isSettingsApp) {
  95       document.documentElement.classList.toggle('settings-app', isSettingsApp);
  96     },
  97
  98     /**
  99      * Returns true if Settings is shown as an "app" (in a window by itself)
 100      * for the app launcher settings "app".
 101      * @return {boolean} Whether this page is shown standalone.
 102      */
 103     isSettingsApp: function() {
 104       return document.documentElement.classList.contains('settings-app');
 105     },
 106   };
 107
 108   // Export
 109   return {
 110     OptionsPage: OptionsPage
 111   };
 112 });