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// 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
* Class to communicate with the background scripts via chrome runtime
* messages to
* 1. Forward session state notifications
* 2. Closes the window when the session terminates
*/
'use strict';
/** @suppress {duplicate} */
var remoting = remoting || {};
/**
* @constructor
* @param {string} senderId id of the current tab or window.
*/
remoting.HangoutSession = function(senderId) {
/**
* @private
* @type {chrome.runtime.Port}
*/
this.port_ = null;
/**
* @private
* @type {string}
*/
this.senderId_ = senderId;
};
remoting.HangoutSession.prototype.init = function() {
var portName = 'it2me.helper.webapp@' + this.senderId_;
this.port_ = chrome.runtime.connect({name: portName});
remoting.hangoutSessionEvents.addEventListener(
remoting.hangoutSessionEvents.sessionStateChanged,
this.onSessionStateChanged_.bind(this));
};
/**
* @param {remoting.ClientSession.State} state
*/
remoting.HangoutSession.prototype.onSessionStateChanged_ = function(state) {
var State = remoting.ClientSession.State;
try {
this.port_.postMessage({method: 'sessionStateChanged', state: state});
} catch (e) {
// postMessage will throw an exception if the port is disconnected.
// We can safely ignore this exception.
var error = /** @type {Error} */ e;
console.error(error);
} finally {
if (state === State.FAILED || state === State.CLOSED) {
// close the current window
if (remoting.isAppsV2) {
chrome.app.window.current().close();
} else {
window.close();
}
}
}
};
/**
* remoting.clientSession does not exist until the session is connected.
* hangoutSessionEvents serves as a global event source to plumb session
* state changes until we cleanup clientSession and sessionConnector.
* @type {base.EventSource}
*/
remoting.hangoutSessionEvents = new base.EventSource();
/** @type {string} */
remoting.hangoutSessionEvents.sessionStateChanged = "sessionStateChanged";
remoting.hangoutSessionEvents.defineEvents(
[remoting.hangoutSessionEvents.sessionStateChanged]);
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