chrome/browser/resources/net_internals/top_bar_view.js

   1 // Copyright (c) 2013 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  * The status view at the top of the page.  It displays what mode net-internals
   7  * is in (capturing, viewing only, viewing loaded log), and may have extra
   8  * information and actions depending on the mode.
   9  */
  10 var TopBarView = (function() {
  11   'use strict';
  12
  13   // We inherit from View.
  14   var superClass = DivView;
  15
  16   /**
  17    * Main entry point. Called once the page has loaded.
  18    * @constructor
  19    */
  20   function TopBarView() {
  21     assertFirstConstructorCall(TopBarView);
  22
  23     superClass.call(this, TopBarView.BOX_ID);
  24
  25     this.nameToSubView_ = {
  26       capture: new CaptureStatusView(),
  27       loaded: new LoadedStatusView(),
  28       halted: new HaltedStatusView()
  29     };
  30
  31     this.activeSubView_ = null;
  32   }
  33
  34   TopBarView.BOX_ID = 'top-bar-view';
  35   TopBarView.TAB_DROPDOWN_MENU_ID = 'top-bar-view-tab-selecter';
  36
  37   cr.addSingletonGetter(TopBarView);
  38
  39   TopBarView.prototype = {
  40     // Inherit the superclass's methods.
  41     __proto__: superClass.prototype,
  42
  43     switchToSubView: function(name) {
  44       var newSubView = this.nameToSubView_[name];
  45
  46       if (!newSubView)
  47         throw Error('Invalid subview name');
  48
  49       var prevSubView = this.activeSubView_;
  50       this.activeSubView_ = newSubView;
  51
  52       if (prevSubView)
  53         prevSubView.show(false);
  54       newSubView.show(this.isVisible());
  55
  56       // Let the subview change the color scheme of the top bar.
  57       $(TopBarView.BOX_ID).className = name + '-status-view';
  58
  59       return newSubView;
  60     },
  61   };
  62
  63   return TopBarView;
  64 })();