chrome/browser/resources/net_internals/http_cache_view.js

   1 // Copyright (c) 2011 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  * This view displays information on the HTTP cache.
   7  */
   8 var HttpCacheView = (function() {
   9   'use strict';
  10
  11   // We inherit from DivView.
  12   var superClass = DivView;
  13
  14   /**
  15    *  @constructor
  16    */
  17   function HttpCacheView() {
  18     assertFirstConstructorCall(HttpCacheView);
  19
  20     // Call superclass's constructor.
  21     superClass.call(this, HttpCacheView.MAIN_BOX_ID);
  22
  23     this.statsDiv_ = $(HttpCacheView.STATS_DIV_ID);
  24
  25     // Register to receive http cache info.
  26     g_browser.addHttpCacheInfoObserver(this, true);
  27   }
  28
  29   // ID for special HTML element in category_tabs.html
  30   HttpCacheView.TAB_HANDLE_ID = 'tab-handle-http-cache';
  31
  32   // IDs for special HTML elements in http_cache_view.html
  33   HttpCacheView.MAIN_BOX_ID = 'http-cache-view-tab-content';
  34   HttpCacheView.STATS_DIV_ID = 'http-cache-view-cache-stats';
  35
  36   cr.addSingletonGetter(HttpCacheView);
  37
  38   HttpCacheView.prototype = {
  39     // Inherit the superclass's methods.
  40     __proto__: superClass.prototype,
  41
  42     onLoadLogFinish: function(data) {
  43       return this.onHttpCacheInfoChanged(data.httpCacheInfo);
  44     },
  45
  46     onHttpCacheInfoChanged: function(info) {
  47       this.statsDiv_.innerHTML = '';
  48
  49       if (!info)
  50         return false;
  51
  52       // Print the statistics.
  53       var statsUl = addNode(this.statsDiv_, 'ul');
  54       for (var statName in info.stats) {
  55         var li = addNode(statsUl, 'li');
  56         addTextNode(li, statName + ': ' + info.stats[statName]);
  57       }
  58       return true;
  59     }
  60   };
  61
  62   return HttpCacheView;
  63 })();