Add 'New window' option to context menu.

remoting/webapp/background.js

 // 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.
 
-chrome.app.runtime.onLaunched.addListener(function() {
+/** @type {string} */
+var kNewWindowId = 'new-window';
+
+function createWindow() {
   chrome.app.window.create('main.html', {
     'width': 800,
     'height': 600
   });
-});
+};
+
+/** @param {OnClickData} info */
+function onContextMenu(info) {
+  if (info.menuItemId == kNewWindowId) {
+    createWindow();
+  }
+};
+
+function initializeContextMenu() {
+  try {
+    chrome.contextMenus.remove(kNewWindowId);
+  } catch (ignore) {
+    // There is no way to detect if the context menu is already added, therefore
+    // try to recreate it every time.

[Lambros, 2013/09/06 22:16:14]

This is the only place you're adding the context menu, and you only call it
once. Why worry about it? :)

[Jamie, 2013/09/06 23:45:50]

I added it because the sample I based it on did so. However, I can't see any
reason for it, so I'm removing it.

+  }
+  chrome.contextMenus.create({
+     id: kNewWindowId,
+     contexts: ['launcher'],
+     title: chrome.i18n.getMessage(/*i18n-content*/'NEW_WINDOW')
+  });
+}
+
+chrome.app.runtime.onLaunched.addListener(createWindow);
+chrome.contextMenus.onClicked.addListener(onContextMenu);
+initializeContextMenu();

[Lambros, 2013/09/06 22:16:14]

Shouldn't we call this from remoting.init() (or the window 'load' handler)?

[Jamie, 2013/09/06 23:45:50]

This is the background page. It gets run when the extension is added or when the
app launcher starts up.