1/* 2 * Copyright (C) 2014 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY GOOGLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GOOGLE INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include "config.h" 27 28#include "modules/mediastream/MediaDevicesRequest.h" 29 30#include "bindings/core/v8/ExceptionState.h" 31#include "core/dom/Document.h" 32#include "modules/mediastream/UserMediaController.h" 33 34namespace blink { 35 36MediaDevicesRequest* MediaDevicesRequest::create(ExecutionContext* context, UserMediaController* controller, MediaDeviceInfoCallback* callback, ExceptionState& exceptionState) 37{ 38 MediaDevicesRequest* request = new MediaDevicesRequest(context, controller, callback); 39 request->suspendIfNeeded(); 40 return request; 41} 42 43MediaDevicesRequest::MediaDevicesRequest(ExecutionContext* context, UserMediaController* controller, MediaDeviceInfoCallback* callback) 44 : ActiveDOMObject(context) 45 , m_controller(controller) 46 , m_callback(callback) 47{ 48} 49 50MediaDevicesRequest::~MediaDevicesRequest() 51{ 52} 53 54Document* MediaDevicesRequest::ownerDocument() 55{ 56 if (ExecutionContext* context = executionContext()) { 57 return toDocument(context); 58 } 59 60 return 0; 61} 62 63void MediaDevicesRequest::start() 64{ 65 if (m_controller) 66 m_controller->requestMediaDevices(this); 67} 68 69void MediaDevicesRequest::succeed(const MediaDeviceInfoVector& mediaDevices) 70{ 71 if (!executionContext() || !m_callback) 72 return; 73 74 m_callback->handleEvent(mediaDevices); 75} 76 77void MediaDevicesRequest::stop() 78{ 79 m_callback.clear(); 80 m_controller = 0; 81} 82 83void MediaDevicesRequest::trace(Visitor* visitor) 84{ 85 visitor->trace(m_callback); 86} 87 88} // namespace blink 89