[polymer] Merge of master into polymer10-migration

netlog_viewer/top_bar_view.js

Index: netlog_viewer/top_bar_view.js
diff --git a/netlog_viewer/top_bar_view.js b/netlog_viewer/top_bar_view.js
new file mode 100644
index 0000000000000000000000000000000000000000..66f5e9546210714d6bca1f1c6899e0b8ea86afa7
--- /dev/null
+++ b/netlog_viewer/top_bar_view.js
@@ -0,0 +1,62 @@
+// Copyright (c) 2013 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.
+
+/**
+ * The status view at the top of the page.  It displays what mode net-internals
+ * is in (capturing, viewing only, viewing loaded log), and may have extra
+ * information and actions depending on the mode.
+ */
+var TopBarView = (function() {
+  'use strict';
+
+  // We inherit from View.
+  var superClass = DivView;
+
+  /**
+   * Main entry point. Called once the page has loaded.
+   * @constructor
+   */
+  function TopBarView() {
+    assertFirstConstructorCall(TopBarView);
+
+    superClass.call(this, TopBarView.BOX_ID);
+
+    this.nameToSubView_ = {
+      loaded: new LoadedStatusView()
+    };
+
+    this.activeSubView_ = null;
+  }
+
+  TopBarView.BOX_ID = 'top-bar-view';
+
+  cr.addSingletonGetter(TopBarView);
+
+  TopBarView.prototype = {
+    // Inherit the superclass's methods.
+    __proto__: superClass.prototype,
+
+    switchToSubView: function(name) {
+      var newSubView = this.nameToSubView_[name];
+
+      if (!newSubView)
+        throw Error('Invalid subview name');
+
+      var prevSubView = this.activeSubView_;
+      this.activeSubView_ = newSubView;
+
+      if (prevSubView)
+        prevSubView.show(false);
+      newSubView.show(this.isVisible());
+
+      // Let the subview change the color scheme of the top bar.
+      $(TopBarView.BOX_ID).className = name + '-status-view';
+
+      return newSubView;
+    },
+  };
+
+  return TopBarView;
+})();
+