Remove Hangout Remote Desktop integration code from the webapp.

remoting/webapp/crd/js/it2me_service.js

-// Copyright 2014 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
- * It2MeService listens to incoming connections requests from Hangouts
- * and the webapp and creates a It2MeHelperChannel between them.
- * It supports multiple helper sessions, but only a single helpee.
- */
-
-'use strict';
-
-/** @suppress {duplicate} */
-var remoting = remoting || {};
-
-/**
- * @param {remoting.AppLauncher} appLauncher
- *
- * @constructor
- * @implements {base.Disposable}
- */
-remoting.It2MeService = function(appLauncher) {
-  /**
-   * @type {remoting.AppLauncher}
-   * @private
-   */
-  this.appLauncher_ = appLauncher;
-
-  /**
-   * @type {Array<remoting.It2MeHelperChannel>}
-   * @private
-   */
-  this.helpers_ = [];
-
-  /** @private */
-  this.helpee_ = null;
-
-  this.onWebappConnectRef_ = this.onWebappConnect_.bind(this);
-  this.onConnectExternalRef_ = this.onConnectExternal_.bind(this);
-};
-
-/** @enum {string} */
-remoting.It2MeService.ConnectionTypes = {
-  HELPER_HANGOUT: 'it2me.helper.hangout',
-  HELPEE_HANGOUT: 'it2me.helpee.hangout',
-  HELPER_WEBAPP: 'it2me.helper.webapp'
-};
-
-/**
- * Starts listening to external connection from Hangouts and the webapp.
- */
-remoting.It2MeService.prototype.init = function() {
-  chrome.runtime.onConnect.addListener(this.onWebappConnectRef_);
-  chrome.runtime.onConnectExternal.addListener(this.onConnectExternalRef_);
-};
-
-remoting.It2MeService.prototype.dispose = function() {
-  chrome.runtime.onConnect.removeListener(this.onWebappConnectRef_);
-  chrome.runtime.onConnectExternal.removeListener(
-      this.onConnectExternalRef_);
-};
-
-/**
- * This function is called when Hangouts connects via chrome.runtime.connect.
- * Only web pages that are white-listed in the manifest are allowed to connect.
- *
- * @param {chrome.runtime.Port} port
- * @private
- */
-remoting.It2MeService.prototype.onConnectExternal_ = function(port) {
-  var ConnectionTypes = remoting.It2MeService.ConnectionTypes;
-  try {
-    switch (port.name) {
-      case ConnectionTypes.HELPER_HANGOUT:
-        this.handleExternalHelperConnection_(port);
-        return true;
-      case ConnectionTypes.HELPEE_HANGOUT:
-        this.handleExternalHelpeeConnection_(port);
-        return true;
-      default:
-        throw new Error('Unsupported port - ' + port.name);
-    }
-  } catch (/** @type {*} */ e) {
-    var error = /**@type {Error} */ (e);
-    console.error(error);
-    port.disconnect();
-  }
-  return false;
-};
-
-/**
- * @param {chrome.runtime.Port} port
- * @private
- */
-remoting.It2MeService.prototype.onWebappConnect_ = function(port) {
-  try {
-    console.log('Incoming helper connection from webapp.');
-
-    // The senderId (tabId or windowId) of the webapp is embedded in the port
-    // name with the format port_name@senderId.
-    var parts = port.name.split('@');
-    var portName = parts[0];
-    var senderId = parts[1];
-    var ConnectionTypes = remoting.It2MeService.ConnectionTypes;
-    if (portName === ConnectionTypes.HELPER_WEBAPP && senderId !== undefined) {
-      for (var i = 0; i < this.helpers_.length; i++) {
-        var helper = this.helpers_[i];
-        if (helper.instanceId() === senderId) {
-          helper.onWebappConnect(port, senderId);
-          return;
-        }
-      }
-    }
-    throw new Error('No matching hangout connection found for ' + port.name);
-  } catch (/** @type {*} */ e) {
-    var error = /** @type {Error} */ (e);
-    console.error(error);
-    port.disconnect();
-  }
-};
-
-/**
- * @param {remoting.It2MeHelperChannel} helper
- */
-remoting.It2MeService.prototype.onHelperChannelDisconnected = function(helper) {
-  for (var i = 0; i < this.helpers_.length; i++) {
-    if (helper === this.helpers_[i]) {
-      this.helpers_.splice(i, 1);
-    }
-  }
-};
-
-remoting.It2MeService.prototype.onHelpeeChannelDisconnected = function() {
-  base.debug.assert(this.helpee_ !== null);
-  this.helpee_ = null;
-};
-
-/**
- * @param {chrome.runtime.Port} port
- * @private
- */
-remoting.It2MeService.prototype.handleExternalHelperConnection_ =
-    function(port) {
-  if (this.helpee_) {
-    console.error(
-        'Cannot start a helper session while a helpee session is in process.');
-    port.disconnect();
-    return;
-  }
-
-  console.log('Incoming helper connection from Hangouts');
-  var helper = new remoting.It2MeHelperChannel(
-      this.appLauncher_, port, this.onHelperChannelDisconnected.bind(this));
-  helper.init();
-  this.helpers_.push(helper);
-};
-
-/**
- * @param {chrome.runtime.Port} hangoutPort Represents a connection to Hangouts.
- * @private
- */
-remoting.It2MeService.prototype.handleExternalHelpeeConnection_ =
-    function(hangoutPort) {
-  if (this.helpee_) {
-    console.error('An existing helpee session is in process.');
-    hangoutPort.disconnect();
-    return;
-  }
-
-  console.log('Incoming helpee connection from Hangouts');
-  this.helpee_ = new remoting.It2MeHelpeeChannel(
-      hangoutPort,
-      new remoting.It2MeHostFacade(),
-      new remoting.HostInstaller(),
-      this.onHelpeeChannelDisconnected.bind(this));
-  this.helpee_.init();
-};