chrome/browser/resources/net_internals/quic_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  * This view displays a summary of the state of each QUIC session, and
   7  * has links to display them in the events tab.
   8  */
   9 var QuicView = (function() {
  10   'use strict';
  11
  12   // We inherit from DivView.
  13   var superClass = DivView;
  14
  15   /**
  16    * @constructor
  17    */
  18   function QuicView() {
  19     assertFirstConstructorCall(QuicView);
  20
  21     // Call superclass's constructor.
  22     superClass.call(this, QuicView.MAIN_BOX_ID);
  23
  24     g_browser.addQuicInfoObserver(this, true);
  25
  26     this.quicEnabledSpan_ = $(QuicView.ENABLED_SPAN_ID);
  27     this.quicForcePortSpan_ = $(QuicView.FORCE_PORT_SPAN_ID);
  28
  29     this.quicSessionNoneSpan_ = $(QuicView.SESSION_NONE_SPAN_ID);
  30     this.quicSessionLinkSpan_ = $(QuicView.SESSION_LINK_SPAN_ID);
  31     this.quicSessionDiv_ = $(QuicView.SESSION_DIV_ID);
  32   }
  33
  34   // ID for special HTML element in category_tabs.html
  35   QuicView.TAB_HANDLE_ID = 'tab-handle-quic';
  36
  37   // IDs for special HTML elements in quic_view.html
  38   QuicView.MAIN_BOX_ID = 'quic-view-tab-content';
  39   QuicView.ENABLED_SPAN_ID = 'quic-view-enabled-span';
  40   QuicView.FORCE_PORT_SPAN_ID = 'quic-view-force-port-span';
  41   QuicView.SESSION_NONE_SPAN_ID = 'quic-view-session-none-span';
  42   QuicView.SESSION_LINK_SPAN_ID = 'quic-view-session-link-span';
  43   QuicView.SESSION_DIV_ID = 'quic-view-session-div';
  44
  45   cr.addSingletonGetter(QuicView);
  46
  47   QuicView.prototype = {
  48     // Inherit the superclass's methods.
  49     __proto__: superClass.prototype,
  50
  51     onLoadLogFinish: function(data) {
  52       return this.onQuicInfoChanged(data.quicInfo);
  53     },
  54
  55     /**
  56      * If there are any sessions, display a single table with
  57      * information on each QUIC session.  Otherwise, displays "None".
  58      */
  59     onQuicInfoChanged: function(quicInfo) {
  60       this.quicSessionDiv_.innerHTML = '';
  61
  62       var hasNoSession =
  63           (!quicInfo || !quicInfo.sessions || quicInfo.sessions.length == 0);
  64       setNodeDisplay(this.quicSessionNoneSpan_, hasNoSession);
  65       setNodeDisplay(this.quicSessionLinkSpan_, !hasNoSession);
  66
  67       // Only want to be hide the tab if there's no data.  In the case of having
  68       // data but no sessions, still show the tab.
  69       if (!quicInfo)
  70         return false;
  71
  72       this.quicEnabledSpan_.textContent = quicInfo.quic_enabled;
  73       this.quicForcePortSpan_.textContent =
  74           quicInfo.origin_port_to_force_quic_on;
  75
  76       if (!hasNoSession) {
  77         var tablePrinter = createSessionTablePrinter(quicInfo.sessions);
  78         tablePrinter.toHTML(this.quicSessionDiv_, 'styled-table');
  79       }
  80
  81       return true;
  82     },
  83   };
  84
  85   /**
  86    * Creates a table printer to print out the state of list of QUIC sessions.
  87    */
  88   function createSessionTablePrinter(quicSessions) {
  89     var tablePrinter = new TablePrinter();
  90
  91     tablePrinter.addHeaderCell('Host');
  92     tablePrinter.addHeaderCell('Peer address');
  93     tablePrinter.addHeaderCell('GUID');
  94     tablePrinter.addHeaderCell('Active streams');
  95
  96     for (var i = 0; i < quicSessions.length; i++) {
  97       var session = quicSessions[i];
  98       tablePrinter.addRow();
  99
 100       var host = session.host_port_pair;
 101       if (session.aliases)
 102         host += ' ' + session.aliases.join(' ');
 103       tablePrinter.addCell(host);
 104
 105       tablePrinter.addCell(session.peer_address);
 106       tablePrinter.addCell(session.guid);
 107       tablePrinter.addCell(session.open_streams);
 108     }
 109     return tablePrinter;
 110   }
 111
 112   return QuicView;
 113 })();