1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 (function () { 18 "use strict"; 19 20 navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia; 21 window.URL = window.URL || window.webkitURL; 22 23 document.addEventListener('DOMContentLoaded', function () { 24 25 var video = document.querySelector('#video'), 26 toggle = document.querySelector('#toggle'), 27 stream = null; 28 29 if (!navigator.getUserMedia) { 30 console.error('getUserMedia not supported'); 31 } 32 33 toggle.addEventListener('click', function () { 34 if (null === stream) { 35 // This call to "getUserMedia" initiates a PermissionRequest in the WebView. 36 navigator.getUserMedia({ video: true }, function (s) { 37 stream = s; 38 video.src = window.URL.createObjectURL(stream); 39 toggle.innerText = 'Stop'; 40 console.log('Started'); 41 }, function (error) { 42 console.error('Error starting camera. Denied.'); 43 }); 44 } else { 45 if (stream.getTracks) { 46 stream.getTracks().forEach(function (track) { 47 track.stop(); 48 }); 49 } else if (stream.stop) { 50 stream.stop(); 51 } 52 stream = null; 53 toggle.innerText = 'Start'; 54 console.log('Stopped'); 55 } 56 }); 57 58 console.log('Page loaded'); 59 60 }); 61 62 })(); 63
