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/*
* Copyright (C) 2023-2025 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.
*/
#pragma once
#if ENABLE(MEDIA_STREAM)
#include "ActiveDOMObject.h"
#include "Blob.h"
#include "Document.h"
#include "JSDOMPromiseDeferred.h"
#include "MediaStreamTrack.h"
#include "PhotoCapabilities.h"
#include "PhotoSettings.h"
namespace WTF {
class Logger;
}
namespace WebCore {
class ImageBitmap;
class ImageCaptureVideoFrameObserver;
class ImageCapture : public RefCounted<ImageCapture>, public ActiveDOMObject, public MediaStreamTrackPrivateObserver {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED(ImageCapture);
public:
void ref() const final { RefCounted::ref(); }
void deref() const final { RefCounted::deref(); }
static ExceptionOr<Ref<ImageCapture>> create(Document&, Ref<MediaStreamTrack>);
~ImageCapture();
void takePhoto(PhotoSettings&&, DOMPromiseDeferred<IDLInterface<Blob>>&&);
void grabFrame(DOMPromiseDeferred<IDLInterface<ImageBitmap>>&&);
void getPhotoCapabilities(DOMPromiseDeferred<IDLDictionary<PhotoCapabilities>>&&);
void getPhotoSettings(DOMPromiseDeferred<IDLDictionary<PhotoSettings>>&&);
Ref<MediaStreamTrack> track() const { return m_track; }
private:
ImageCapture(Document&, Ref<MediaStreamTrack>);
void stopGrabFrameObserver();
// ActiveDOMObject
void stop() final { stopGrabFrameObserver(); };
// MediaStreamTrackPrivateObserver
void trackEnded(MediaStreamTrackPrivate&) final;
void trackMutedChanged(MediaStreamTrackPrivate&) final { }
void trackSettingsChanged(MediaStreamTrackPrivate&) final { }
void trackEnabledChanged(MediaStreamTrackPrivate&) final { }
#if !RELEASE_LOG_DISABLED
const Logger& logger() const { return m_logger.get(); }
uint64_t logIdentifier() const { return m_logIdentifier; }
ASCIILiteral logClassName() const { return "ImageCapture"_s; }
WTFLogChannel& logChannel() const;
#endif
const Ref<MediaStreamTrack> m_track;
RefPtr<ImageCaptureVideoFrameObserver> m_grabFrameObserver;
#if !RELEASE_LOG_DISABLED
const Ref<const Logger> m_logger;
const uint64_t m_logIdentifier;
#endif
};
}
#endif
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