text: // Holds the data structure for all the context menus used in the app
  var CONTEXT_MENU_CONTENTS = {
    forWindows : [
      'foo',
      'bar',
      'baz'
    ],
    forSelection: [
      'Selection context menu'
    ],
    forLauncher : [
      'Launch Window "A"',
      'Launch Window "B"'
    ]
  }
  
  function setUpContextMenus() {
    CONTEXT_MENU_CONTENTS.forWindows.forEach(function(commandId) {
      chrome.contextMenus.create({
        title: 'A: ' + commandId,
        type: 'radio',
        id: 'A' + commandId,
        documentUrlPatterns: [ "chrome-extension://*/a.html"],
        contexts: ['all']
      });
    });
  
    CONTEXT_MENU_CONTENTS.forWindows.forEach(function(commandId) {
      chrome.contextMenus.create({
        title: 'B: ' + commandId,
        type: 'checkbox',
        id: 'B' + commandId,
        documentUrlPatterns: [ "chrome-extension://*/b.html"],
        contexts: ['all']
      });
    });
  
    CONTEXT_MENU_CONTENTS.forSelection.forEach(function(commandId) {
      chrome.contextMenus.create({
        type: "separator",
        id: 'sep1',
        contexts: ['selection']
      });
      chrome.contextMenus.create( {
        title: commandId + ' "%s"',
        id: commandId,
        contexts: ['selection']
      });
    });
  
    CONTEXT_MENU_CONTENTS.forLauncher.forEach(function(commandId, index) {
      chrome.contextMenus.create({
        title: commandId,
        id: 'launcher' + index,
        contexts: ['launcher']
      });
    });
  }
  
  chrome.app.runtime.onLaunched.addListener(function() {
    chrome.app.window.create('a.html', {id: 'a', outerBounds:{top: 0, left: 0, width: 300, height: 300}});
    chrome.app.window.create('b.html', {id: 'b', outerBounds:{top: 0, left: 310, width: 300, height: 300}});
  });
  
  chrome.runtime.onInstalled.addListener(function() {
    // When the app gets installed, set up the context menus
    setUpContextMenus();
  });
  
  chrome.contextMenus.onClicked.addListener(function(itemData) {
    if (itemData.menuItemId == "launcher0")
      chrome.app.window.create('a.html', {id: 'a', outerBounds:{top: 0, left: 0, width: 300, height: 300}});
    if (itemData.menuItemId == "launcher1")
      chrome.app.window.create('b.html', {id: 'b', outerBounds:{top: 0, left: 310, width: 300, height: 300}});
  });
  