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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_IMAGECAPTURE_IMAGE_CAPTURE_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_IMAGECAPTURE_IMAGE_CAPTURE_H_
#include <memory>
#include "media/capture/mojom/image_capture.mojom-blink.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "third_party/blink/renderer/bindings/core/v8/active_script_wrappable.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_media_track_capabilities.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_media_track_constraint_set.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_media_track_settings.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_photo_settings.h"
#include "third_party/blink/renderer/core/dom/events/event_target.h"
#include "third_party/blink/renderer/core/execution_context/execution_context_lifecycle_observer.h"
#include "third_party/blink/renderer/modules/event_target_modules.h"
#include "third_party/blink/renderer/modules/modules_export.h"
namespace blink {
class ExceptionState;
class ImageCaptureFrameGrabber;
class MediaStreamTrack;
class PhotoCapabilities;
class ScriptPromiseResolver;
// TODO(mcasas): Consider adding a web test checking that this class is not
// garbage collected while it has event listeners.
class MODULES_EXPORT ImageCapture final
: public EventTargetWithInlineData,
public ActiveScriptWrappable<ImageCapture>,
public ExecutionContextLifecycleObserver {
USING_GARBAGE_COLLECTED_MIXIN(ImageCapture);
DEFINE_WRAPPERTYPEINFO();
public:
static ImageCapture* Create(ExecutionContext*,
MediaStreamTrack*,
ExceptionState&);
ImageCapture(ExecutionContext*, MediaStreamTrack*);
~ImageCapture() override;
// EventTarget implementation.
const AtomicString& InterfaceName() const override;
ExecutionContext* GetExecutionContext() const override;
// ScriptWrappable implementation.
bool HasPendingActivity() const final;
// ExecutionContextLifecycleObserver
void ContextDestroyed() override;
MediaStreamTrack* videoStreamTrack() const { return stream_track_.Get(); }
ScriptPromise getPhotoCapabilities(ScriptState*);
ScriptPromise getPhotoSettings(ScriptState*);
ScriptPromise setOptions(ScriptState*,
const PhotoSettings*,
bool trigger_take_photo = false);
ScriptPromise takePhoto(ScriptState*);
ScriptPromise takePhoto(ScriptState*, const PhotoSettings*);
ScriptPromise grabFrame(ScriptState*);
MediaTrackCapabilities* GetMediaTrackCapabilities() const;
void SetMediaTrackConstraints(
ScriptPromiseResolver*,
const HeapVector<Member<MediaTrackConstraintSet>>&);
const MediaTrackConstraintSet* GetMediaTrackConstraints() const;
void ClearMediaTrackConstraints();
void GetMediaTrackSettings(MediaTrackSettings*) const;
void Trace(Visitor*) override;
private:
using PromiseResolverFunction =
base::OnceCallback<void(ScriptPromiseResolver*)>;
void OnMojoGetPhotoState(ScriptPromiseResolver*,
PromiseResolverFunction,
bool trigger_take_photo,
media::mojom::blink::PhotoStatePtr);
void OnMojoSetOptions(ScriptPromiseResolver*,
bool trigger_take_photo,
bool result);
void OnMojoTakePhoto(ScriptPromiseResolver*, media::mojom::blink::BlobPtr);
void UpdateMediaTrackCapabilities(media::mojom::blink::PhotoStatePtr);
void OnServiceConnectionError();
void ResolveWithNothing(ScriptPromiseResolver*);
void ResolveWithPhotoSettings(ScriptPromiseResolver*);
void ResolveWithPhotoCapabilities(ScriptPromiseResolver*);
Member<MediaStreamTrack> stream_track_;
std::unique_ptr<ImageCaptureFrameGrabber> frame_grabber_;
mojo::Remote<media::mojom::blink::ImageCapture> service_;
Member<MediaTrackCapabilities> capabilities_;
Member<MediaTrackSettings> settings_;
Member<MediaTrackConstraintSet> current_constraints_;
Member<PhotoSettings> photo_settings_;
Member<PhotoCapabilities> photo_capabilities_;
HeapHashSet<Member<ScriptPromiseResolver>> service_requests_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_IMAGECAPTURE_IMAGE_CAPTURE_H_
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