remoting/webapp/app_remoting/js/app_connected_view.js

   1 // Copyright 2015 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  * @fileoverview
   7  * Implements a basic UX control for a connected app remoting session.
   8  */
   9
  10 /** @suppress {duplicate} */
  11 var remoting = remoting || {};
  12
  13 (function() {
  14
  15 'use strict';
  16
  17 /**
  18  * Interval to test the connection speed.
  19  * @const {number}
  20  */
  21 var CONNECTION_SPEED_PING_INTERVAL_MS = 10 * 1000;
  22
  23 /**
  24  * Interval to refresh the google drive access token.
  25  * @const {number}
  26  */
  27 var DRIVE_ACCESS_TOKEN_REFRESH_INTERVAL_MS = 15 * 60 * 1000;
  28
  29 /**
  30  * @param {HTMLElement} containerElement
  31  * @param {remoting.WindowShape} windowShape
  32  * @param {remoting.ConnectionInfo} connectionInfo
  33  * @param {base.WindowMessageDispatcher} windowMessageDispatcher
  34  *
  35  * @constructor
  36  * @implements {base.Disposable}
  37  * @implements {remoting.ProtocolExtension}
  38  */
  39 remoting.AppConnectedView = function(containerElement, windowShape,
  40                                      connectionInfo, windowMessageDispatcher) {
  41   /** @private */
  42   this.plugin_ = connectionInfo.plugin();
  43
  44   /** @private */
  45   this.host_ = connectionInfo.host();
  46
  47   var menuAdapter = new remoting.ContextMenuChrome();
  48
  49   // Initialize the context menus.
  50   if (!remoting.platformIsChromeOS()) {
  51     menuAdapter = new remoting.ContextMenuDom(
  52         document.getElementById('context-menu'), windowShape);
  53   }
  54
  55   this.contextMenu_ = new remoting.ApplicationContextMenu(
  56       menuAdapter, this.plugin_, connectionInfo.session(), windowShape);
  57   this.contextMenu_.setHostId(connectionInfo.host().hostId);
  58
  59   /** @private */
  60   this.keyboardLayoutsMenu_ = new remoting.KeyboardLayoutsMenu(menuAdapter);
  61
  62   /** @private */
  63   this.windowActivationMenu_ = new remoting.WindowActivationMenu(menuAdapter);
  64
  65   var baseView = new remoting.ConnectedView(
  66       this.plugin_, containerElement,
  67       containerElement.querySelector('.mouse-cursor-overlay'));
  68
  69   var windowShapeHook = new base.EventHook(
  70       this.plugin_.hostDesktop(),
  71       remoting.HostDesktop.Events.shapeChanged,
  72       windowShape.setDesktopRects.bind(windowShape));
  73
  74   var desktopSizeHook = new base.EventHook(
  75       this.plugin_.hostDesktop(),
  76       remoting.HostDesktop.Events.sizeChanged,
  77       this.onDesktopSizeChanged_.bind(this));
  78
  79   /** @private */
  80   this.disposables_ =
  81       new base.Disposables(baseView, windowShapeHook, desktopSizeHook,
  82                            this.contextMenu_, menuAdapter);
  83
  84   /** @private */
  85   this.supportsGoogleDrive_ = this.plugin_.hasCapability(
  86       remoting.ClientSession.Capability.GOOGLE_DRIVE);
  87
  88   this.resizeHostToClientArea_();
  89   this.plugin_.extensions().register(this);
  90
  91   /** @private {remoting.CloudPrintDialogContainer} */
  92   this.cloudPrintDialogContainer_ = new remoting.CloudPrintDialogContainer(
  93       /** @type {!Webview} */ (document.getElementById('cloud-print-webview')),
  94       windowShape, windowMessageDispatcher, baseView);
  95
  96   this.disposables_.add(this.cloudPrintDialogContainer_);
  97 };
  98
  99 /**
 100  * @return {void} Nothing.
 101  */
 102 remoting.AppConnectedView.prototype.dispose = function() {
 103   this.windowActivationMenu_.setExtensionMessageSender(base.doNothing);
 104   this.keyboardLayoutsMenu_.setExtensionMessageSender(base.doNothing);
 105   base.dispose(this.disposables_);
 106 };
 107
 108 /**
 109  * Resize the host to the dimensions of the current window.
 110  * @private
 111  */
 112 remoting.AppConnectedView.prototype.resizeHostToClientArea_ = function() {
 113   var hostDesktop = this.plugin_.hostDesktop();
 114   var desktopScale = this.host_.options.desktopScale;
 115   hostDesktop.resize(window.innerWidth * desktopScale,
 116                      window.innerHeight * desktopScale,
 117                      window.devicePixelRatio);
 118 };
 119
 120 /**
 121  * Adjust the size of the plugin according to the dimensions of the hostDesktop.
 122  *
 123  * @param {{width:number, height:number, xDpi:number, yDpi:number}} hostDesktop
 124  * @private
 125  */
 126 remoting.AppConnectedView.prototype.onDesktopSizeChanged_ =
 127     function(hostDesktop) {
 128   // The first desktop size change indicates that we can close the loading
 129   // window.
 130   remoting.LoadingWindow.close();
 131
 132   var hostSize = { width: hostDesktop.width, height: hostDesktop.height };
 133   var hostDpi = { x: hostDesktop.xDpi, y: hostDesktop.yDpi };
 134   var clientArea = { width: window.innerWidth, height: window.innerHeight };
 135   var newSize = remoting.Viewport.choosePluginSize(
 136       clientArea, window.devicePixelRatio,
 137       hostSize, hostDpi, this.host_.options.desktopScale,
 138       true /* fullscreen */ , true /* shrinkToFit */ );
 139
 140   this.plugin_.element().style.width = newSize.width + 'px';
 141   this.plugin_.element().style.height = newSize.height + 'px';
 142 };
 143
 144 /**
 145  * @return {Array<string>}
 146  * @override {remoting.ProtocolExtension}
 147  */
 148 remoting.AppConnectedView.prototype.getExtensionTypes = function() {
 149   return ['openURL', 'onWindowRemoved', 'onWindowAdded',
 150           'onAllWindowsMinimized', 'setKeyboardLayouts', 'pingResponse'];
 151 };
 152
 153 /**
 154  * @param {function(string,string)} sendMessageToHost Callback to send a message
 155  *     to the host.
 156  * @override {remoting.ProtocolExtension}
 157  */
 158 remoting.AppConnectedView.prototype.startExtension = function(
 159     sendMessageToHost) {
 160   this.windowActivationMenu_.setExtensionMessageSender(sendMessageToHost);
 161   this.keyboardLayoutsMenu_.setExtensionMessageSender(sendMessageToHost);
 162
 163   remoting.identity.getUserInfo().then(function(userInfo) {
 164     sendMessageToHost('setUserDisplayInfo',
 165                       JSON.stringify({fullName: userInfo.name}));
 166   });
 167
 168   var onRestoreHook = new base.ChromeEventHook(
 169       chrome.app.window.current().onRestored, function() {
 170         sendMessageToHost('restoreAllWindows', '');
 171       });
 172
 173   var pingTimer = new base.RepeatingTimer(function() {
 174     var message = {timestamp: new Date().getTime()};
 175     sendMessageToHost('pingRequest', JSON.stringify(message));
 176   }, CONNECTION_SPEED_PING_INTERVAL_MS);
 177
 178   this.disposables_.add(onRestoreHook, pingTimer);
 179
 180   if (this.supportsGoogleDrive_) {
 181     this.disposables_.add(new base.RepeatingTimer(
 182         this.sendGoogleDriveAccessToken_.bind(this, sendMessageToHost),
 183         DRIVE_ACCESS_TOKEN_REFRESH_INTERVAL_MS, true));
 184   }
 185 };
 186
 187 /**
 188  * @param {string} command The message command.
 189  * @param {Object} message The parsed extension message data.
 190  * @override {remoting.ProtocolExtension}
 191  */
 192 remoting.AppConnectedView.prototype.onExtensionMessage =
 193     function(command, message) {
 194   switch (command) {
 195     case 'openURL':
 196       // URL requests from the hosted app are untrusted, so disallow anything
 197       // other than HTTP or HTTPS.
 198       var url = base.getStringAttr(message, 'url');
 199       if (url.indexOf('http:') != 0 && url.indexOf('https:') != 0) {
 200         console.error('Bad URL: ' + url);
 201       } else {
 202         window.open(url);
 203       }
 204       return true;
 205
 206     case 'onWindowRemoved':
 207       var id = base.getNumberAttr(message, 'id');
 208       this.windowActivationMenu_.remove(id);
 209       return true;
 210
 211     case 'onWindowAdded':
 212       var id = base.getNumberAttr(message, 'id');
 213       var title = base.getStringAttr(message, 'title');
 214       this.windowActivationMenu_.add(id, title);
 215       return true;
 216
 217     case 'onAllWindowsMinimized':
 218       chrome.app.window.current().minimize();
 219       return true;
 220
 221     case 'setKeyboardLayouts':
 222       var supportedLayouts = base.getArrayAttr(message, 'supportedLayouts');
 223       var currentLayout = base.getStringAttr(message, 'currentLayout');
 224       console.log('Current host keyboard layout: ' + currentLayout);
 225       console.log('Supported host keyboard layouts: ' + supportedLayouts);
 226       this.keyboardLayoutsMenu_.setLayouts(supportedLayouts, currentLayout);
 227       return true;
 228
 229     case 'pingResponse':
 230       var then = base.getNumberAttr(message, 'timestamp');
 231       var now = new Date().getTime();
 232       this.contextMenu_.updateConnectionRTT(now - then);
 233       return true;
 234
 235     case 'printDocument':
 236       var title = base.getStringAttr(message, 'title');
 237       var type = base.getStringAttr(message, 'type');
 238       var data = base.getStringAttr(message, 'data');
 239       if (type == '' || data == '') {
 240         console.error('"type" and "data" cannot be empty.');
 241         return true;
 242       }
 243
 244       this.cloudPrintDialogContainer_.printDocument(title, type, data);
 245       return true;
 246   }
 247
 248   return false;
 249 };
 250
 251 /**
 252  * Timer callback to send the access token to the host.
 253  * @param {function(string, string)} sendExtensionMessage
 254  * @private
 255  */
 256 remoting.AppConnectedView.prototype.sendGoogleDriveAccessToken_ =
 257     function(sendExtensionMessage) {
 258   var googleDriveScopes = [
 259     'https://docs.google.com/feeds/',
 260     'https://www.googleapis.com/auth/drive'
 261   ];
 262   remoting.identity.getNewToken(googleDriveScopes).then(
 263     function(/** string */ token){
 264       console.assert(token !== previousToken_,
 265                      'getNewToken() returned the same token.');
 266       previousToken_ = token;
 267       sendExtensionMessage('accessToken', token);
 268   }).catch(remoting.Error.handler(function(/** remoting.Error */ error) {
 269     console.log('Failed to refresh access token: ' + error.toString());
 270   }));
 271 };
 272
 273 // The access token last received from getNewToken. Saved to ensure that we
 274 // get a fresh token each time.
 275 var previousToken_ = '';
 276
 277 })();