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/*
* Copyright (C) 2015 Ericsson AB. All rights reserved.
* Copyright (C) 2016-2022 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.
* 3. Neither the name of Ericsson nor the names of its contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 THE COPYRIGHT
* OWNER 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.
*/
#pragma once
#if ENABLE(MEDIA_STREAM)
#include "ActiveDOMObject.h"
#include "EventNames.h"
#include "EventTarget.h"
#include "ExceptionOr.h"
#include "IDLTypes.h"
#include "MediaTrackConstraints.h"
#include "RealtimeMediaSourceCenter.h"
#include "UserMediaClient.h"
#include <wtf/RobinHoodHashMap.h>
#include <wtf/RunLoop.h>
#include <wtf/WeakPtr.h>
namespace WebCore {
class Document;
class InputDeviceInfo;
class MediaDeviceInfo;
class MediaStream;
class UserGestureToken;
struct MediaTrackSupportedConstraints;
template<typename IDLType> class DOMPromiseDeferred;
class MediaDevices final : public RefCounted<MediaDevices>, public ActiveDOMObject, public EventTarget {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED(MediaDevices);
public:
void ref() const final { RefCounted::ref(); }
void deref() const final { RefCounted::deref(); }
static Ref<MediaDevices> create(Document&);
~MediaDevices();
Document* document() const;
using Promise = DOMPromiseDeferred<IDLInterface<MediaStream>>;
using EnumerateDevicesPromise = DOMPromiseDeferred<IDLSequence<IDLUnion<IDLInterface<MediaDeviceInfo>, IDLInterface<InputDeviceInfo>>>>;
enum class DisplayCaptureSurfaceType {
Monitor,
Window,
Application,
Browser,
};
struct StreamConstraints {
std::variant<bool, MediaTrackConstraints> video;
std::variant<bool, MediaTrackConstraints> audio;
};
void getUserMedia(StreamConstraints&&, Promise&&);
struct DisplayMediaStreamConstraints {
std::variant<bool, MediaTrackConstraints> video;
std::variant<bool, MediaTrackConstraints> audio;
};
void getDisplayMedia(DisplayMediaStreamConstraints&&, Promise&&);
void enumerateDevices(EnumerateDevicesPromise&&);
MediaTrackSupportedConstraints getSupportedConstraints();
String deviceIdToPersistentId(const String& deviceId) const { return m_audioOutputDeviceIdToPersistentId.get(deviceId); }
void willStartMediaCapture(bool microphone, bool camera);
private:
explicit MediaDevices(Document&);
void scheduledEventTimerFired();
bool addEventListener(const AtomString& eventType, Ref<EventListener>&&, const AddEventListenerOptions&) override;
void exposeDevices(Vector<CaptureDeviceWithCapabilities>&&, MediaDeviceHashSalts&&, EnumerateDevicesPromise&&);
void listenForDeviceChanges();
friend class JSMediaDevicesOwner;
// ActiveDOMObject
void stop() final;
bool virtualHasPendingActivity() const final;
// EventTarget.
enum EventTargetInterfaceType eventTargetInterface() const final { return EventTargetInterfaceType::MediaDevices; }
ScriptExecutionContext* scriptExecutionContext() const final { return ActiveDOMObject::scriptExecutionContext(); }
void refEventTarget() final { ref(); }
void derefEventTarget() final { deref(); }
enum class GestureAllowedRequest {
Microphone = 1 << 0,
Camera = 1 << 1,
Display = 1 << 2,
};
bool computeUserGesturePriviledge(GestureAllowedRequest);
RunLoop::Timer m_scheduledEventTimer;
Markable<UserMediaClient::DeviceChangeObserverToken> m_deviceChangeToken;
const EventNames& m_eventNames; // Need to cache this so we can use it from GC threads.
bool m_listeningForDeviceChanges { false };
OptionSet<GestureAllowedRequest> m_requestTypesForCurrentGesture;
WeakPtr<UserGestureToken> m_currentGestureToken;
MemoryCompactRobinHoodHashMap<String, String> m_audioOutputDeviceIdToPersistentId;
String m_audioOutputDeviceId;
bool m_hasRestrictedCameraDevices { true };
bool m_hasRestrictedMicrophoneDevices { true };
};
} // namespace WebCore
#endif // ENABLE(MEDIA_STREAM)
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