chrome/test/data/extensions/api_test/tabs/connect/echo.js

   1 // Copyright (c) 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 // Content script that echoes back all messages.
   6 // Posting a message with "GET" returns the name and # of connections opened.
   7 var connections = 0;
   8
   9 chrome.runtime.onConnect.addListener(function onConnect(port) {
  10   connections++;
  11   port.onMessage.addListener(function onMessage(msg) {
  12     if (msg == "GET") {
  13       port.postMessage({"name": port.name, "connections": connections});
  14     } else {
  15       port.postMessage(msg);
  16     }
  17   });
  18 });
  19
  20 chrome.extension.onRequest.addListener(function(request, sender, respond) {
  21   respond(request);
  22 });