chrome/test/data/extensions/background_app/background.js

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 // This is a minimal sample of a Apps V2 app with background permission.
   6 //
   7 // This function gets called in the packaged app model on launch.
   8 chrome.app.runtime.onLaunched.addListener(function() {
   9   console.log("Background App Launched!");
  10
  11   // We'll set up push messaging so we have something to keep the background
  12   // app registered.
  13   setupPush();
  14 });
  15
  16 // This function gets called in the packaged app model on install.
  17 chrome.runtime.onInstalled.addListener(function() {
  18   console.log("Background App installed!");
  19 });
  20
  21 // This function gets called in the packaged app model on shutdown.
  22 chrome.runtime.onSuspend.addListener(function() {
  23   console.log("Background App shutting down");
  24 });
  25
  26 // Register for push messages.
  27 // This should be called every time the Push Messaging App starts up.
  28 function setupPush() {
  29   chrome.pushMessaging.onMessage.addListener(messageCallback);
  30
  31   // Ensure that adding the listener took effect.
  32   var listeners = chrome.pushMessaging.onMessage.hasListeners();
  33   console.log('registered listener for push messages ' + listeners);
  34 }
  35
  36 // This callback receives the pushed message from the push server.
  37 function messageCallback(message) {
  38   console.log("push messaging callback seen");
  39 }