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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/modules/breakout_box/video_track_generator.h"
#include "third_party/blink/public/mojom/use_counter/metrics/web_feature.mojom-blink.h"
#include "third_party/blink/public/platform/platform.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_video_track_generator.h"
#include "third_party/blink/renderer/core/execution_context/execution_context.h"
#include "third_party/blink/renderer/modules/breakout_box/media_stream_track_generator.h"
#include "third_party/blink/renderer/platform/bindings/exception_state.h"
#include "third_party/blink/renderer/platform/bindings/script_state.h"
#include "third_party/blink/renderer/platform/instrumentation/use_counter.h"
#include "third_party/blink/renderer/platform/mediastream/media_stream_component.h"
#include "third_party/blink/renderer/platform/wtf/uuid.h"
namespace blink {
VideoTrackGenerator* VideoTrackGenerator::Create(
ScriptState* script_state,
ExceptionState& exception_state) {
if (!script_state->ContextIsValid()) {
exception_state.ThrowDOMException(DOMExceptionCode::kInvalidStateError,
"Invalid context");
return nullptr;
}
// The implementation of VideoTrackGenerator in worker is a work in
// progress. It is known to have security issues at the moment, so
// don't allow it - developers will have to remove this check when
// the project is resumed.
if (!ExecutionContext::From(script_state)->IsWindow()) {
exception_state.ThrowDOMException(
DOMExceptionCode::kInvalidStateError,
"VideoTrackGenerator in worker does not work yet");
}
return MakeGarbageCollected<VideoTrackGenerator>(script_state,
exception_state);
}
VideoTrackGenerator::VideoTrackGenerator(ScriptState* script_state,
ExceptionState& exception_state) {
wrapped_generator_ = MakeGarbageCollected<MediaStreamTrackGenerator>(
script_state, MediaStreamSource::kTypeVideo);
}
WritableStream* VideoTrackGenerator::writable(ScriptState* script_state) {
return wrapped_generator_->writable(script_state);
}
bool VideoTrackGenerator::muted() {
return wrapped_generator_->PushableVideoSource()->GetBroker()->IsMuted();
}
void VideoTrackGenerator::setMuted(bool muted) {
wrapped_generator_->PushableVideoSource()->GetBroker()->SetMuted(muted);
}
MediaStreamTrack* VideoTrackGenerator::track() {
return wrapped_generator_.Get();
}
void VideoTrackGenerator::Trace(Visitor* visitor) const {
visitor->Trace(wrapped_generator_);
ScriptWrappable::Trace(visitor);
}
} // namespace blink
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