Propagate connection state from networking layer to UI.

remoting/webapp/client_session.js

 // Copyright (c) 2012 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.
 
 /**
  * @fileoverview
  * Class handling creation and teardown of a remoting client session.
  *
  * The ClientSession class controls lifetime of the client plugin
  * object and provides the plugin with the functionality it needs to
@@ skipping 285 matching lines @@
       remoting.ClientPlugin.Feature.HIGH_QUALITY_SCALING));
 
   /** @param {string} msg The IQ stanza to send. */
   this.plugin.onOutgoingIqHandler = this.sendIq_.bind(this);
   /** @param {string} msg The message to log. */
   this.plugin.onDebugMessageHandler = function(msg) {
     console.log('plugin: ' + msg);
   };
 
   this.plugin.onConnectionStatusUpdateHandler =
-      this.connectionStatusUpdateCallback.bind(this);
+      this.onConnectionStatusUpdate_.bind(this);
+  this.plugin.onConnectionInactiveHandler =
+      this.onConnectionInactive_.bind(this);
   this.plugin.onDesktopSizeUpdateHandler =
       this.onDesktopSizeChanged_.bind(this);
 
   this.connectPluginToWcs_(oauth2AccessToken);
 };
 
 /**
  * Deletes the <embed> element from the container, without sending a
  * session_terminate request.  This is to be called when the session was
  * disconnected by the Host.
@@ skipping 155 matching lines @@
   remoting.wcs.setOnIq(onIncomingIq);
   this.plugin.connect(this.hostJid, this.hostPublicKey, this.clientJid,
                       this.sharedSecret, this.authenticationMethods,
                       this.authenticationTag);
 };
 
 /**
  * Callback that the plugin invokes to indicate that the connection
  * status has changed.
  *
+ * @private
  * @param {number} status The plugin's status.
  * @param {number} error The plugin's error state, if any.
  */
-remoting.ClientSession.prototype.connectionStatusUpdateCallback =
+remoting.ClientSession.prototype.onConnectionStatusUpdate_ =
     function(status, error) {
   if (status == remoting.ClientSession.State.CONNECTED) {
     this.onDesktopSizeChanged_();
   } else if (status == remoting.ClientSession.State.FAILED) {
     this.error = /** @type {remoting.ClientSession.ConnectionError} */ (error);
   }
   this.setState_(/** @type {remoting.ClientSession.State} */ (status));
 };
 
 /**
+ * Callback that the plugin invokes to indicate when the connection is
+ * inactive.
+ *
+ * @private
+ * @param {boolean} inactive True if the connection is inactive.
+ */
+remoting.ClientSession.prototype.onConnectionInactive_ =
+    function(inactive) {
+  if (inactive) {
+    this.plugin.element().classList.add("session-client-inactive");
+  } else {
+    this.plugin.element().classList.remove("session-client-inactive");
+  }
+}
+
+/**
  * @private
  * @param {remoting.ClientSession.State} newState The new state for the session.
  * @return {void} Nothing.
  */
 remoting.ClientSession.prototype.setState_ = function(newState) {
   var oldState = this.state;
   this.state = newState;
   if (this.onStateChange) {
     this.onStateChange(oldState, newState);
   }
@@ skipping 192 matching lines @@
   style.marginLeft = adjustMargin(style.marginLeft, dx,
                                   window.innerWidth, plugin.width, stopX);
   var stopY = { stop: false };
   style.marginTop = adjustMargin(style.marginTop, dy,
                                  window.innerHeight, plugin.height, stopY);
   return stopX.stop && stopY.stop;
 }
 
 /**
  * Enable or disable bump-scrolling.
+ * @private
  * @param {boolean} enable True to enable bump-scrolling, false to disable it.
  */
 remoting.ClientSession.prototype.enableBumpScroll_ = function(enable) {
   if (enable) {
     /** @type {null|function(Event):void} */
     this.onMouseMoveRef_ = this.onMouseMove_.bind(this);
     this.plugin.element().addEventListener('mousemove', this.onMouseMoveRef_,
                                            false);
   } else {
     this.plugin.element().removeEventListener('mousemove', this.onMouseMoveRef_,
@@ skipping 52 matching lines @@
       var lateAdjustment = 1 + (now - expected) / timeout;
       if (!that.scroll_(lateAdjustment * dx, lateAdjustment * dy)) {
         that.bumpScrollTimer_ = window.setTimeout(
             function() { repeatScroll(now + timeout); },
             timeout);
       }
     };
     repeatScroll(new Date().getTime());
   }
 };