chrome/browser/resources/net_internals/http_pipeline_view.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  * This view displays a summary of the state of each HTTP pipelined connection,
   7  * and has links to display them in the events tab.
   8  */
   9 var HttpPipelineView = (function() {
  10   'use strict';
  11
  12   // We inherit from DivView.
  13   var superClass = DivView;
  14
  15   /**
  16    * @constructor
  17    */
  18   function HttpPipelineView() {
  19     assertFirstConstructorCall(HttpPipelineView);
  20
  21     // Call superclass's constructor.
  22     superClass.call(this, HttpPipelineView.MAIN_BOX_ID);
  23
  24     g_browser.addHttpPipeliningStatusObserver(this, true);
  25   }
  26
  27   HttpPipelineView.TAB_ID = 'tab-handle-http-pipeline';
  28   HttpPipelineView.TAB_NAME = 'Pipelining';
  29   HttpPipelineView.TAB_HASH = '#httpPipeline';
  30
  31   // IDs for special HTML elements in http_pipeline_view.html
  32   HttpPipelineView.MAIN_BOX_ID = 'http-pipeline-view-tab-content';
  33   HttpPipelineView.ENABLED_SPAN_ID = 'http-pipeline-view-enabled-span';
  34   HttpPipelineView.KNOWN_HOSTS_TABLE_ID =
  35       'http-pipeline-view-known-hosts-table';
  36
  37   cr.addSingletonGetter(HttpPipelineView);
  38
  39   HttpPipelineView.prototype = {
  40     // Inherit the superclass's methods.
  41     __proto__: superClass.prototype,
  42
  43     onLoadLogFinish: function(data) {
  44       return this.onHttpPipeliningStatusChanged(data.httpPipeliningStatus);
  45     },
  46
  47     /**
  48      * Displays information on the global HTTP pipelining status.
  49      */
  50     onHttpPipeliningStatusChanged: function(httpPipeliningStatus) {
  51       if (!httpPipeliningStatus)
  52         return false;
  53       var input = new JsEvalContext(httpPipeliningStatus);
  54       jstProcess(input, $(HttpPipelineView.MAIN_BOX_ID));
  55       // Hide view in loaded logs if pipelining isn't enabled.
  56       return httpPipeliningStatus.pipelining_enabled;
  57     },
  58   };
  59
  60   return HttpPipelineView;
  61 })();