Hangout remote desktop part II - background.html and AppLauncher

remoting/webapp/background/background.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.
+
+/** @suppress {duplicate} */
+var remoting = remoting || {};
+
+(function(){
+
+/** @return {boolean} */
+function isAppsV2() {
+  var manifest = chrome.runtime.getManifest();
+  if (manifest && manifest.app && manifest.app.background) {
+    return true;
+  }
+  return false;
+}
+
+/** @param {remoting.AppLauncher} appLauncher */
+function initializeAppV2(appLauncher) {
+  /** @type {string} */
+  var kNewWindowId = 'new-window';
+
+  /** @param {OnClickData} info */
+  function onContextMenu(info) {
+    if (info.menuItemId == kNewWindowId) {
+      appLauncher.launch();
+    }
+  }
+
+  function initializeContextMenu() {
+    chrome.contextMenus.create({
+       id: kNewWindowId,
+       contexts: ['launcher'],
+       title: chrome.i18n.getMessage(/*i18n-content*/'NEW_WINDOW')
+    });
+    chrome.contextMenus.onClicked.addListener(onContextMenu);
+  }
+
+  initializeContextMenu();
+  chrome.app.runtime.onLaunched.addListener(
+      appLauncher.launch.bind(appLauncher)
+  );
+}
+
+function main() {
+  /** @type {remoting.AppLauncher} */
+  var appLauncher = new remoting.V1AppLauncher();
+  if (isAppsV2()) {
+    appLauncher = new remoting.V2AppLauncher();
+    initializeAppV2(appLauncher);
+  }
+}
+
+window.addEventListener('load', main, false);
+
+}());