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// 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.
'use strict';
/** @suppress {duplicate} */
var remoting = remoting || {};
/** @type {remoting.HostSession} */ remoting.hostSession = null;
/**
* @enum {string} All error messages from messages.json
*/
remoting.Error = {
NO_RESPONSE: /*i18n-content*/'ERROR_NO_RESPONSE',
INVALID_ACCESS_CODE: /*i18n-content*/'ERROR_INVALID_ACCESS_CODE',
MISSING_PLUGIN: /*i18n-content*/'ERROR_MISSING_PLUGIN',
AUTHENTICATION_FAILED: /*i18n-content*/'ERROR_AUTHENTICATION_FAILED',
HOST_IS_OFFLINE: /*i18n-content*/'ERROR_HOST_IS_OFFLINE',
INCOMPATIBLE_PROTOCOL: /*i18n-content*/'ERROR_INCOMPATIBLE_PROTOCOL',
BAD_PLUGIN_VERSION: /*i18n-content*/'ERROR_BAD_PLUGIN_VERSION',
GENERIC: /*i18n-content*/'ERROR_GENERIC',
UNEXPECTED: /*i18n-content*/'ERROR_UNEXPECTED',
SERVICE_UNAVAILABLE: /*i18n-content*/'ERROR_SERVICE_UNAVAILABLE'
};
/**
* Entry point for app initialization.
*/
remoting.init = function() {
l10n.localize();
var button = document.getElementById('toggle-scaling');
button.title = chrome.i18n.getMessage(/*i18n-content*/'TOOLTIP_SCALING');
// Create global objects.
remoting.oauth2 = new remoting.OAuth2();
remoting.debug = new remoting.DebugLog(
document.getElementById('debug-messages'),
document.getElementById('statistics'));
remoting.hostList = new remoting.HostList(
document.getElementById('host-list'),
document.getElementById('host-list-error'));
remoting.toolbar = new remoting.Toolbar(
document.getElementById('session-toolbar'));
refreshEmail_();
var email = remoting.oauth2.getCachedEmail();
if (email) {
document.getElementById('current-email').innerText = email;
}
window.addEventListener('blur', pluginLostFocus_, false);
// Parse URL parameters.
var urlParams = getUrlParameters();
if ('mode' in urlParams) {
if (urlParams['mode'] == 'me2me') {
var hostId = urlParams['hostId'];
remoting.connectMe2Me(hostId, true);
return;
}
}
// No valid URL parameters, start up normally.
remoting.setMode(getAppStartupMode_());
if (isHostModeSupported_()) {
var noShare = document.getElementById('chrome-os-no-share');
noShare.parentNode.removeChild(noShare);
} else {
var button = document.getElementById('share-button');
button.disabled = true;
}
};
/**
* If there is an incomplete share or connection in progress, cancel it.
*/
remoting.cancelPendingOperation = function() {
document.getElementById('cancel-button').disabled = true;
switch (remoting.getMajorMode()) {
case remoting.AppMode.HOST:
remoting.cancelShare();
break;
case remoting.AppMode.CLIENT:
remoting.cancelConnect();
break;
}
};
/**
* If the client is connected, or the host is shared, prompt before closing.
*
* @return {?string} The prompt string if a connection is active.
*/
remoting.promptClose = function() {
switch (remoting.currentMode) {
case remoting.AppMode.CLIENT_CONNECTING:
case remoting.AppMode.HOST_WAITING_FOR_CODE:
case remoting.AppMode.HOST_WAITING_FOR_CONNECTION:
case remoting.AppMode.HOST_SHARED:
case remoting.AppMode.IN_SESSION:
var result = chrome.i18n.getMessage(/*i18n-content*/'CLOSE_PROMPT');
return result;
default:
return null;
}
};
/**
* Sign the user out of Chromoting by clearing the OAuth refresh token.
*/
remoting.clearOAuth2 = function() {
remoting.oauth2.clear();
window.localStorage.removeItem(KEY_EMAIL_);
remoting.setMode(remoting.AppMode.UNAUTHENTICATED);
};
/**
* Callback function called when the browser window loses focus. In this case,
* release all keys to prevent them becoming 'stuck down' on the host.
*/
function pluginLostFocus_() {
if (remoting.clientSession && remoting.clientSession.plugin) {
remoting.clientSession.plugin.releaseAllKeys();
}
}
/**
* If the user is authenticated, but there is no email address cached, get one.
*/
function refreshEmail_() {
if (!getEmail_() && remoting.oauth2.isAuthenticated()) {
remoting.oauth2.getEmail(setEmail_);
}
}
/**
* The key under which the email address is stored.
* @private
*/
var KEY_EMAIL_ = 'remoting-email';
/**
* Save the user's email address in local storage.
*
* @param {?string} email The email address to place in local storage.
* @return {void} Nothing.
*/
function setEmail_(email) {
if (email) {
document.getElementById('current-email').innerText = email;
} else {
// TODO(ajwong): Have a better way of showing an error.
document.getElementById('current-email').innerText = '???';
}
}
/**
* Read the user's email address from local storage.
*
* @return {?string} The email address associated with the auth credentials.
*/
function getEmail_() {
var result = window.localStorage.getItem(KEY_EMAIL_);
return typeof result == 'string' ? result : null;
}
/**
* Gets the major-mode that this application should start up in.
*
* @return {remoting.AppMode} The mode to start in.
*/
function getAppStartupMode_() {
return remoting.oauth2.isAuthenticated() ? remoting.AppMode.HOME :
remoting.AppMode.UNAUTHENTICATED;
}
/**
* Returns whether Host mode is supported on this platform.
*
* @return {boolean} True if Host mode is supported.
*/
function isHostModeSupported_() {
// Currently, sharing on Chromebooks is not supported.
return !navigator.userAgent.match(/\bCrOS\b/);
}
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