Requiem for client_screen.js

remoting/webapp/crd/js/client_screen.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
- * Functions related to the 'client screen' for Chromoting.
- */
-
-'use strict';
-
-/** @suppress {duplicate} */
-var remoting = remoting || {};
-
-/**
- * @type {remoting.ClientSession} The client session object, set once the
- *     connector has invoked its onOk callback.
- */
-remoting.clientSession = null;
-
-/**
- * @type {remoting.DesktopConnectedView} The client session object, set once the
- *     connector has invoked its onOk callback.
- */
-remoting.desktopConnectedView = null;
-
-/**
- * Update the remoting client layout in response to a resize event.
- *
- * @return {void} Nothing.
- */
-remoting.onResize = function() {
-  if (remoting.desktopConnectedView) {
-    remoting.desktopConnectedView.onResize();
-  }
-};
-
-/**
- * Handle changes in the visibility of the window, for example by pausing video.
- *
- * @return {void} Nothing.
- */
-remoting.onVisibilityChanged = function() {
-  if (remoting.desktopConnectedView) {
-    remoting.desktopConnectedView.pauseVideo(
-      ('hidden' in document) ? document.hidden : document.webkitHidden);
-  }
-};
-
-/**
- * Disconnect the remoting client.
- *
- * @return {void} Nothing.
- */
-remoting.disconnect = function() {
-  if (!remoting.clientSession) {
-    return;
-  }
-  remoting.clientSession.disconnect(remoting.Error.NONE);
-  console.log('Disconnected.');
-};
-
-/**
- * Callback function called when the state of the client plugin changes. The
- * current and previous states are available via the |state| member variable.
- *
- * @param {remoting.ClientSession.StateEvent=} state
- */
-function onClientStateChange_(state) {
-  switch (state.current) {
-    case remoting.ClientSession.State.CLOSED:
-      console.log('Connection closed by host');
-      if (remoting.desktopConnectedView.getMode() ==
-          remoting.DesktopConnectedView.Mode.IT2ME) {
-        remoting.setMode(remoting.AppMode.CLIENT_SESSION_FINISHED_IT2ME);
-        remoting.hangoutSessionEvents.raiseEvent(
-            remoting.hangoutSessionEvents.sessionStateChanged,
-            remoting.ClientSession.State.CLOSED);
-      } else {
-        remoting.setMode(remoting.AppMode.CLIENT_SESSION_FINISHED_ME2ME);
-      }
-      remoting.app.onDisconnected();
-      break;
-
-    case remoting.ClientSession.State.FAILED:
-      var error = remoting.clientSession.getError();
-      console.error('Client plugin reported connection failed: ' + error);
-      if (error == null) {
-        error = remoting.Error.UNEXPECTED;
-      }
-      remoting.app.onError(error);
-      break;
-
-    default:
-      console.error('Unexpected client plugin state: ' + state.current);
-      // This should only happen if the web-app and client plugin get out of
-      // sync, so MISSING_PLUGIN is a suitable error.
-      remoting.app.onError(remoting.Error.MISSING_PLUGIN);
-      break;
-  }
-
-  remoting.clientSession.removeEventListener('stateChanged',
-                                             onClientStateChange_);
-  remoting.clientSession.cleanup();
-  remoting.clientSession = null;
-  remoting.desktopConnectedView = null;
-}
-
-/**
- * Timer callback to update the statistics panel.
- */
-function updateStatistics_() {
-  if (!remoting.clientSession ||
-      remoting.clientSession.getState() !=
-      remoting.ClientSession.State.CONNECTED) {
-    return;
-  }
-  var perfstats = remoting.clientSession.getPerfStats();
-  remoting.stats.update(perfstats);
-  remoting.clientSession.logStatistics(perfstats);
-  // Update the stats once per second.
-  window.setTimeout(updateStatistics_, 1000);
-}