| OLD | NEW |
|---|
| (Empty) | |
| 1 <!DOCTYPE html> |
| 2 <html> |
| 3 <!-- |
| 4 Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 5 Use of this source code is governed by a BSD-style license that can be |
| 6 found in the LICENSE file. |
| 7 --> |
| 8 <head> |
| 9 <title>Enumerate Devices Example</title> |
| 10 <script type="text/javascript"> |
| 11 var device_array = []; |
| 12 var enumerating = false; |
| 13 |
| 14 function HandleMessage(message_event) { |
| 15 if (message_event.data) { |
| 16 var status = document.getElementById('status'); |
| 17 if (message_event.data == 'EnumerationFailed') { |
| 18 status.innerText = 'Device enumeration failed!'; |
| 19 } else { |
| 20 devices_data = |
| 21 message_event.data.substring('EnumerationSuccess'.length); |
| 22 if (devices_data.length > 0) |
| 23 device_array = devices_data.split('#__#'); |
| 24 else |
| 25 devices_array = []; |
| 26 |
| 27 var list = document.getElementById('device_list'); |
| 28 if (devices_array.length == 0) |
| 29 list.innerHTML = 'No devices.'; |
| 30 for (var i = 0; i < device_array.length; ++i) { |
| 31 var list_item = document.createElement('li'); |
| 32 var span = document.createElement('span'); |
| 33 span.innerText = device_array[i]; |
| 34 list_item.appendChild(span); |
| 35 list.appendChild(list_item); |
| 36 } |
| 37 status.innerText = 'Device enumeration success!'; |
| 38 } |
| 39 enumerating = false; |
| 40 } |
| 41 } |
| 42 |
| 43 function EnumerateDevices(sync) { |
| 44 if (enumerating) |
| 45 return; |
| 46 enumerating = true; |
| 47 var status = document.getElementById('status'); |
| 48 var plugin = document.getElementById('plugin'); |
| 49 if (sync) { |
| 50 status.innerText = 'Enumerating devices sync...' |
| 51 plugin.postMessage('EnumerateDevicesSync'); |
| 52 } else { |
| 53 status.innerText = 'Enumerating devices async...' |
| 54 plugin.postMessage('EnumerateDevicesAsync'); |
| 55 } |
| 56 } |
| 57 |
| 58 function Initialize() { |
| 59 var plugin = document.getElementById('plugin'); |
| 60 plugin.addEventListener('message', HandleMessage, false); |
| 61 EnumerateDevices(true); |
| 62 } |
| 63 |
| 64 document.addEventListener('DOMContentLoaded', Initialize, false); |
| 65 </script> |
| 66 </head> |
| 67 |
| 68 <body> |
| 69 <embed id="plugin" type="application/x-ppapi-example-enumerate-devices" |
| 70 width=0 height=0 /> |
| 71 <div> |
| 72 Press a link to enumerate video devices: |
| 73 <ul> |
| 74 <li><a href="javascript:EnumerateDevices(true)">Enumerate devices sync</a> |
| 75 (only implemented for out-of-process)</li> |
| 76 <li><a href="javascript:EnumerateDevices(false)">Enumerate devices async</
a></li> |
| 77 </ul> |
| 78 </div> |
| 79 <div id="available_devices"> |
| 80 Available device(s): |
| 81 <ul id="device_list">No devices.</ul> |
| 82 </div> |
| 83 <div> |
| 84 Status: <span id="status"></span> |
| 85 </div> |
| 86 </body> |
| 87 </html> |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 11016007:
Implement host side of sync EnumerateVideoCaptureDevices (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src