/* * Copyright (C) 2015-2016 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "config.h" #include "CaptureDeviceManager.h" #if ENABLE(MEDIA_STREAM) #include "Logging.h" #include "MediaConstraints.h" #include "RealtimeMediaSource.h" #include "RealtimeMediaSourceCenter.h" #include "RealtimeMediaSourceSettings.h" #include <wtf/MainThread.h> #include <wtf/text/StringHash.h> using namespace WebCore; CaptureDeviceManager::~CaptureDeviceManager() = default; CaptureDevice CaptureDeviceManager::captureDeviceFromPersistentID(const String& captureDeviceID) { for (auto& device : captureDevices()) { if (device.persistentId() == captureDeviceID) return device; } return { }; } static CaptureDeviceManager::ObserverToken nextObserverToken() { static CaptureDeviceManager::ObserverToken nextToken = 0; return ++nextToken; } CaptureDeviceManager::ObserverToken CaptureDeviceManager::addCaptureDeviceChangedObserver(CaptureDeviceChangedCallback&& observer) { auto token = nextObserverToken(); m_observers.set(token, WTFMove(observer)); return token; } void CaptureDeviceManager::removeCaptureDeviceChangedObserver(ObserverToken token) { ASSERT(m_observers.contains(token)); m_observers.remove(token); } #endif // ENABLE(MEDIA_STREAM)