chrome/common/extensions/docs/examples/api/desktopCapture/app.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 function gotStream(stream) {
   6   console.log("Received local stream");
   7   var video = document.querySelector("video");
   8   video.src = URL.createObjectURL(stream);
   9   localstream = stream;
  10   stream.onended = function() { console.log("Ended"); };
  11 }
  12
  13 function getUserMediaError() {
  14   console.log("getUserMedia() failed.");
  15 }
  16
  17 function onAccessApproved(id) {
  18   if (!id) {
  19     console.log("Access rejected.");
  20     return;
  21   }
  22   navigator.webkitGetUserMedia({
  23       audio:false,
  24       video: { mandatory: { chromeMediaSource: "desktop",
  25                             chromeMediaSourceId: id } }
  26   }, gotStream, getUserMediaError);
  27 }
  28
  29 var pending_request_id = null;
  30
  31 document.querySelector('#start').addEventListener('click', function(e) {
  32   pending_request_id = chrome.desktopCapture.chooseDesktopMedia(
  33       ["screen", "window"], onAccessApproved);
  34 });
  35
  36 document.querySelector('#cancel').addEventListener('click', function(e) {
  37   if (pending_request_id != null) {
  38     chrome.desktopCapture.cancelChooseDesktopMedia(pending_request_id);
  39   }
  40 });
  41
  42 document.querySelector('#startFromBackgroundPage')
  43     .addEventListener('click', function(e) {
  44       chrome.runtime.sendMessage(
  45           {}, function(response) { console.log(response.farewell); });
  46     });