[polymer] Merge of master into polymer10-migration

netlog_viewer/http_cache_view.js

+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+/**
+ * This view displays information on the HTTP cache.
+ */
+var HttpCacheView = (function() {
+  'use strict';
+
+  // We inherit from DivView.
+  var superClass = DivView;
+
+  /**
+   *  @constructor
+   */
+  function HttpCacheView() {
+    assertFirstConstructorCall(HttpCacheView);
+
+    // Call superclass's constructor.
+    superClass.call(this, HttpCacheView.MAIN_BOX_ID);
+
+    this.statsDiv_ = $(HttpCacheView.STATS_DIV_ID);
+
+    // Register to receive http cache info.
+    g_browser.addHttpCacheInfoObserver(this, true);
+  }
+
+  HttpCacheView.TAB_ID = 'tab-handle-http-cache';
+  HttpCacheView.TAB_NAME = 'Cache';
+  HttpCacheView.TAB_HASH = '#httpCache';
+
+  // IDs for special HTML elements in http_cache_view.html
+  HttpCacheView.MAIN_BOX_ID = 'http-cache-view-tab-content';
+  HttpCacheView.STATS_DIV_ID = 'http-cache-view-cache-stats';
+
+  cr.addSingletonGetter(HttpCacheView);
+
+  HttpCacheView.prototype = {
+    // Inherit the superclass's methods.
+    __proto__: superClass.prototype,
+
+    onLoadLogFinish: function(data) {
+      return this.onHttpCacheInfoChanged(data.httpCacheInfo);
+    },
+
+    onHttpCacheInfoChanged: function(info) {
+      this.statsDiv_.innerHTML = '';
+
+      if (!info)
+        return false;
+
+      // Print the statistics.
+      var statsUl = addNode(this.statsDiv_, 'ul');
+      for (var statName in info.stats) {
+        var li = addNode(statsUl, 'li');
+        addTextNode(li, statName + ': ' + info.stats[statName]);
+      }
+      return true;
+    }
+  };
+
+  return HttpCacheView;
+})();
+