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Text File  |  2013-04-03  |  1KB  |  36 lines
  1. // Copyright (c) 2012 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. // Custom bindings for the Tab Capture API.
  6. var chromeHidden = requireNative('chrome_hidden').GetChromeHidden();
  7.  
  8. chromeHidden.registerCustomHook('tabCapture',
  9.                                 function(bindingsAPI, extensionId) {
  10.   var apiFunctions = bindingsAPI.apiFunctions;
  11.  
  12.   apiFunctions.setCustomCallback('capture',
  13.                                  function(name, request, response) {
  14.     if (response && request.callback) {
  15.       var callback = request.callback;
  16.       var successFunc = function(stream) {
  17.         callback(stream);
  18.       };
  19.       var errorFunc = function() {
  20.         callback(null);
  21.       };
  22.  
  23.       var options = {};
  24.       if (response.audioConstraints)
  25.         options.audio = response.audioConstraints;
  26.       if (response.videoConstraints)
  27.         options.video = response.videoConstraints;
  28.  
  29.       navigator.webkitGetUserMedia(options, successFunc, errorFunc);
  30.     } else {
  31.       request.callback();
  32.     }
  33.     request.callback = null;
  34.   });
  35. });
  36.