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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
* AppLauncher is an interface that allows the client code to launch and close
* the app without knowing the implementation difference between a v1 app and
* a v2 app.
*
* To launch an app:
* var appLauncher = new remoting.V1AppLauncher();
* var appId = "";
* appLauncher.launch({arg1:'someValue'}).then(function(id){
* appId = id;
* });
*
* To close an app:
* appLauncher.close(appId);
*/
/** @suppress {duplicate} */
var remoting = remoting || {};
(function() {
'use strict';
/** @interface */
remoting.AppLauncher = function() {};
/**
* @param {Object=} opt_launchArgs
* @return {Promise} The promise will resolve when the app is launched. It will
* provide the caller with the appId (which is either the id of the hosting tab
* or window). The caller can use the appId to close the app.
*/
remoting.AppLauncher.prototype.launch = function(opt_launchArgs) { };
/**
* @param {string} id The id of the app to close.
* @return {Promise} The promise will resolve when the app is closed.
*/
remoting.AppLauncher.prototype.close = function(id) {};
/**
* @constructor
* @implements {remoting.AppLauncher}
*/
remoting.V1AppLauncher = function() {};
remoting.V1AppLauncher.prototype.launch = function(opt_launchArgs) {
var url = base.urlJoin('main.html', opt_launchArgs);
/**
* @param {function(*=):void} resolve
* @param {function(*=):void} reject
*/
return new Promise(function(resolve, reject) {
chrome.tabs.create({ url: url, selected: true },
/** @param {chrome.Tab} tab The created tab. */
function(tab) {
if (!tab) {
reject(new Error(chrome.runtime.lastError.message));
} else {
resolve(String(tab.id));
}
});
});
};
remoting.V1AppLauncher.prototype.close = function(id) {
/**
* @param {function(*=):void} resolve
* @param {function(*=):void} reject
*/
return new Promise(function(resolve, reject) {
/** @param {chrome.Tab} tab The retrieved tab. */
chrome.tabs.get(id, function(tab) {
if (!tab) {
reject(new Error(chrome.runtime.lastError.message));
} else {
chrome.tabs.remove(tab.id, /** @type {function(*=):void} */ (resolve));
}
});
});
};
/**
* @constructor
* @implements {remoting.AppLauncher}
*/
remoting.V2AppLauncher = function() {};
var APP_MAIN_URL = 'main.html';
/**
* @param {string} id
*/
remoting.V2AppLauncher.prototype.restart = function(id) {
this.close(id).then(function() {
// Not using the launch() method because we want to launch a new window with
// the same id, such that the size and positioning of the original window
// can be preserved.
return chrome.app.window.create(APP_MAIN_URL, {'id' : id, 'frame': 'none'});
});
};
remoting.V2AppLauncher.prototype.launch = function(opt_launchArgs) {
var url = base.urlJoin(APP_MAIN_URL, opt_launchArgs);
/**
* @param {function(*=):void} resolve
* @param {function(*=):void} reject
*/
return new Promise(function(resolve, reject) {
var START_FULLSCREEN = 'start-fullscreen';
/** @param {Object} values */
var onValues = function(values) {
/** @type {string} */
var state = values[START_FULLSCREEN] ? 'fullscreen' : 'normal';
chrome.app.window.create(url, {
'width': 800,
'height': 600,
'frame': 'none',
'id': String(getNextWindowId()),
'state': state
},
/** @param {AppWindow=} appWindow */
function(appWindow) {
if (!appWindow) {
reject(new Error(chrome.runtime.lastError.message));
} else {
resolve(appWindow.id);
}
});
};
chrome.storage.local.get(START_FULLSCREEN, onValues);
});
};
remoting.V2AppLauncher.prototype.close = function(id) {
/**
* @param {function(*=):void} resolve
* @param {function(*=):void} reject
*/
return new Promise(function(resolve, reject) {
var appWindow = chrome.app.window.get(id);
if (!appWindow) {
return Promise.reject(new Error(chrome.runtime.lastError.message));
}
appWindow.onClosed.addListener(resolve);
appWindow.close();
});
};
/**
* @return {number} the next available window id.
*/
function getNextWindowId() {
var appWindows = chrome.app.window.getAll();
var lastId = /** @type(number) */ (0);
appWindows.forEach(function(appWindow) {
base.debug.assert(Number.isInteger(appWindow.id),
"Window Id should be an integer");
var id = parseInt(appWindow.id, 10);
if (lastId <= id) {
lastId = id;
}
});
return ++lastId;
}
})();
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