remoting/webapp/crd/js/desktop_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  * Class handling user-facing aspects of the client session.
   8  */
   9
  10 'use strict';
  11
  12 /** @suppress {duplicate} */
  13 var remoting = remoting || {};
  14
  15 /**
  16  * @param {HTMLElement} container
  17  * @param {remoting.ConnectionInfo} connectionInfo
  18  * @constructor
  19  * @extends {base.EventSourceImpl}
  20  * @implements {base.Disposable}
  21  */
  22 remoting.DesktopConnectedView = function(container, connectionInfo) {
  23
  24   /** @private {HTMLElement} */
  25   this.container_ = container;
  26
  27   /** @private {remoting.ClientPlugin} */
  28   this.plugin_ = connectionInfo.plugin();
  29
  30   /** @private {remoting.ClientSession} */
  31   this.session_ = connectionInfo.session();
  32
  33   /** @private */
  34   this.host_ = connectionInfo.host();
  35
  36   /** @private {remoting.DesktopViewport} */
  37   this.viewport_ = null;
  38
  39   /** @private {remoting.ConnectedView} */
  40   this.view_ = null;
  41
  42   /** @private {remoting.VideoFrameRecorder} */
  43   this.videoFrameRecorder_ = null;
  44
  45   /** @private {base.Disposable} */
  46   this.eventHooks_ = null;
  47
  48   /** @private */
  49   this.stats_ = new remoting.ConnectionStats(
  50       document.getElementById('statistics'), connectionInfo.plugin());
  51
  52   this.initPlugin_();
  53   this.initUI_();
  54 };
  55
  56 /** @return {void} Nothing. */
  57 remoting.DesktopConnectedView.prototype.dispose = function() {
  58   if (remoting.windowFrame) {
  59     remoting.windowFrame.setDesktopConnectedView(null);
  60   }
  61   if (remoting.toolbar) {
  62     remoting.toolbar.setDesktopConnectedView(null);
  63   }
  64   if (remoting.optionsMenu) {
  65     remoting.optionsMenu.setDesktopConnectedView(null);
  66   }
  67
  68   document.body.classList.remove('connected');
  69
  70   base.dispose(this.eventHooks_);
  71   this.eventHooks_ = null;
  72
  73   base.dispose(this.viewport_);
  74   this.viewport_ = null;
  75
  76   base.dispose(this.stats_);
  77   this.stats = null;
  78 };
  79
  80 /**
  81  * Get host display name.
  82  *
  83  * @return {string}
  84  */
  85 remoting.DesktopConnectedView.prototype.getHostDisplayName = function() {
  86   return this.host_.hostName;
  87 };
  88
  89 /**
  90  * @return {boolean} True if shrink-to-fit is enabled; false otherwise.
  91  */
  92 remoting.DesktopConnectedView.prototype.getShrinkToFit = function() {
  93   if (this.viewport_) {
  94     return this.viewport_.getShrinkToFit();
  95   }
  96   return false;
  97 };
  98
  99 /**
 100  * @return {boolean} True if resize-to-client is enabled; false otherwise.
 101  */
 102 remoting.DesktopConnectedView.prototype.getResizeToClient = function() {
 103   if (this.viewport_) {
 104     return this.viewport_.getResizeToClient();
 105   }
 106   return false;
 107 };
 108
 109 /**
 110  * @return {boolean} True if the right-hand Ctrl key is mapped to the Meta
 111  *     (Windows, Command) key.
 112  */
 113 remoting.DesktopConnectedView.prototype.getMapRightCtrl = function() {
 114   return this.host_.options.remapKeys[0x0700e4] === 0x0700e7;
 115 };
 116
 117 remoting.DesktopConnectedView.prototype.toggleStats = function() {
 118   this.stats_.toggle();
 119 };
 120
 121 /**
 122  * @return {boolean} True if the connection stats is visible; false otherwise.
 123  */
 124 remoting.DesktopConnectedView.prototype.isStatsVisible = function() {
 125   return this.stats_.isVisible();
 126 };
 127
 128 /**
 129  * @return {Element} The element that should host the plugin.
 130  * @private
 131  */
 132 remoting.DesktopConnectedView.prototype.getPluginContainer_ = function() {
 133   return this.container_.querySelector('.client-plugin-container');
 134 };
 135
 136 /** @return {remoting.DesktopViewport} */
 137 remoting.DesktopConnectedView.prototype.getViewportForTesting = function() {
 138   return this.viewport_;
 139 };
 140
 141 /** @return {remoting.ConnectedView} */
 142 remoting.DesktopConnectedView.prototype.getConnectedViewForTesting =
 143     function() {
 144   return this.view_;
 145 };
 146
 147 /** @private */
 148 remoting.DesktopConnectedView.prototype.initPlugin_ = function() {
 149   console.assert(remoting.app instanceof remoting.DesktopRemoting,
 150                 '|remoting.app| is not an instance of DesktopRemoting.');
 151   var drApp = /** @type {remoting.DesktopRemoting} */ (remoting.app);
 152   var mode = drApp.getConnectionMode();
 153
 154   // Show the Ctrl-Alt-Del button only in Me2Me mode.
 155   if (mode == remoting.DesktopRemoting.Mode.IT2ME) {
 156     var sendCadElement = document.getElementById('send-ctrl-alt-del');
 157     sendCadElement.hidden = true;
 158   }
 159 };
 160
 161 /**
 162  * This is a callback that gets called when the window is resized.
 163  *
 164  * @return {void} Nothing.
 165  * @private.
 166  */
 167 remoting.DesktopConnectedView.prototype.onResize_ = function() {
 168   if (this.viewport_) {
 169     this.viewport_.onResize();
 170   }
 171 };
 172
 173 /** @private */
 174 remoting.DesktopConnectedView.prototype.initUI_ = function() {
 175   document.body.classList.add('connected');
 176
 177   this.view_ = new remoting.ConnectedView(
 178       this.plugin_, this.container_,
 179       this.container_.querySelector('.mouse-cursor-overlay'));
 180
 181   var scrollerElement = document.getElementById('scroller');
 182   this.viewport_ = new remoting.DesktopViewport(
 183       scrollerElement || document.body,
 184       this.plugin_.hostDesktop(),
 185       this.host_.options);
 186
 187   if (remoting.windowFrame) {
 188     remoting.windowFrame.setDesktopConnectedView(this);
 189   }
 190   if (remoting.toolbar) {
 191     remoting.toolbar.setDesktopConnectedView(this);
 192   }
 193   if (remoting.optionsMenu) {
 194     remoting.optionsMenu.setDesktopConnectedView(this);
 195   }
 196
 197   // Activate full-screen related UX.
 198   this.eventHooks_ = new base.Disposables(
 199     this.view_,
 200     new base.EventHook(this.session_,
 201                        remoting.ClientSession.Events.videoChannelStateChanged,
 202                        this.view_.onConnectionReady.bind(this.view_)),
 203     new base.DomEventHook(window, 'resize', this.onResize_.bind(this), false),
 204     new remoting.Fullscreen.EventHook(this.onFullScreenChanged_.bind(this)));
 205   this.onFullScreenChanged_(remoting.fullscreen.isActive());
 206 };
 207
 208 /**
 209  * Set the shrink-to-fit and resize-to-client flags and save them if this is
 210  * a Me2Me connection.
 211  *
 212  * @param {boolean} shrinkToFit True if the remote desktop should be scaled
 213  *     down if it is larger than the client window; false if scroll-bars
 214  *     should be added in this case.
 215  * @param {boolean} resizeToClient True if window resizes should cause the
 216  *     host to attempt to resize its desktop to match the client window size;
 217  *     false to disable this behaviour for subsequent window resizes--the
 218  *     current host desktop size is not restored in this case.
 219  * @return {void} Nothing.
 220  */
 221 remoting.DesktopConnectedView.prototype.setScreenMode =
 222     function(shrinkToFit, resizeToClient) {
 223   this.viewport_.setScreenMode(shrinkToFit, resizeToClient);
 224 };
 225
 226 /**
 227  * Called when the full-screen status has changed, either via the
 228  * remoting.Fullscreen class, or via a system event such as the Escape key
 229  *
 230  * @param {boolean=} fullscreen True if the app is entering full-screen mode;
 231  *     false if it is leaving it.
 232  * @private
 233  */
 234 remoting.DesktopConnectedView.prototype.onFullScreenChanged_ = function (
 235     fullscreen) {
 236   if (this.viewport_) {
 237     // When a window goes full-screen, a resize event is triggered, but the
 238     // Fullscreen.isActive call is not guaranteed to return true until the
 239     // full-screen event is triggered. In apps v2, the size of the window's
 240     // client area is calculated differently in full-screen mode, so register
 241     // for both events.
 242     this.viewport_.onResize();
 243     this.viewport_.enableBumpScroll(Boolean(fullscreen));
 244   }
 245 };
 246
 247 /**
 248  * Set whether or not the right-hand Ctrl key should send the Meta (Windows,
 249  * Command) key-code.
 250  *
 251  * @param {boolean} enable True to enable the mapping; false to disable.
 252  */
 253 remoting.DesktopConnectedView.prototype.setMapRightCtrl = function(enable) {
 254   if (enable === this.getMapRightCtrl()) {
 255     return;  // In case right Ctrl is mapped, but not to right Meta.
 256   }
 257
 258   if (enable) {
 259     this.host_.options.remapKeys[0x0700e4] = 0x0700e7;
 260   } else {
 261     delete this.host_.options.remapKeys[0x0700e4]
 262   }
 263   this.setRemapKeys(this.host_.options.remapKeys);
 264 };
 265
 266 /**
 267  * Sends a Ctrl-Alt-Del sequence to the remoting client.
 268  *
 269  * @return {void} Nothing.
 270  */
 271 remoting.DesktopConnectedView.prototype.sendCtrlAltDel = function() {
 272   console.log('Sending Ctrl-Alt-Del.');
 273   this.plugin_.injectKeyCombination([0x0700e0, 0x0700e2, 0x07004c]);
 274 };
 275
 276 /**
 277  * Sends a Print Screen keypress to the remoting client.
 278  *
 279  * @return {void} Nothing.
 280  */
 281 remoting.DesktopConnectedView.prototype.sendPrintScreen = function() {
 282   console.log('Sending Print Screen.');
 283   this.plugin_.injectKeyCombination([0x070046]);
 284 };
 285
 286 /**
 287  * Sets and stores the key remapping setting for the current host. If set,
 288  * these mappings override the defaults for the client platform.
 289  *
 290  * @param {!Object} remappings
 291  */
 292 remoting.DesktopConnectedView.prototype.setRemapKeys = function(remappings) {
 293   this.plugin_.setRemapKeys(remappings);
 294   // Save the new remapping setting.
 295   this.host_.options.remapKeys =
 296       /** @type {!Object} */ (base.deepCopy(remappings));
 297   this.host_.options.save();
 298 };
 299
 300 /** @param {remoting.VideoFrameRecorder} recorder */
 301 remoting.DesktopConnectedView.prototype.setVideoFrameRecorder =
 302     function(recorder) {
 303   this.videoFrameRecorder_ = recorder;
 304 };
 305
 306 /**
 307  * Returns true if the ClientSession can record video frames to a file.
 308  * @return {boolean}
 309  */
 310 remoting.DesktopConnectedView.prototype.canRecordVideo = function() {
 311   return !!this.videoFrameRecorder_;
 312 };
 313
 314 /**
 315  * Returns true if the ClientSession is currently recording video frames.
 316  * @return {boolean}
 317  */
 318 remoting.DesktopConnectedView.prototype.isRecordingVideo = function() {
 319   if (!this.videoFrameRecorder_) {
 320     return false;
 321   }
 322   return this.videoFrameRecorder_.isRecording();
 323 };
 324
 325 /**
 326  * Starts or stops recording of video frames.
 327  */
 328 remoting.DesktopConnectedView.prototype.startStopRecording = function() {
 329   if (this.videoFrameRecorder_) {
 330     this.videoFrameRecorder_.startStopRecording();
 331   }
 332 };