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// Copyright 2017 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_WEBAUDIO_AUDIO_WORKLET_PROCESSOR_DEFINITION_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_WEBAUDIO_AUDIO_WORKLET_PROCESSOR_DEFINITION_H_
#include "third_party/blink/renderer/bindings/modules/v8/v8_audio_param_descriptor.h"
#include "third_party/blink/renderer/modules/modules_export.h"
#include "third_party/blink/renderer/platform/bindings/name_client.h"
#include "third_party/blink/renderer/platform/heap/handle.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
#include "v8/include/v8.h"
namespace blink {
class V8BlinkAudioWorkletProcessCallback;
class V8BlinkAudioWorkletProcessorConstructor;
// Represents a JavaScript class definition registered in the
// AudioWorkletGlobalScope. After the registration, a definition class contains
// the V8 representation of class components (constructor, process callback,
// prototypes and parameter descriptors).
//
// This is constructed and destroyed on a worker thread, and all methods also
// must be called on the worker thread.
class MODULES_EXPORT AudioWorkletProcessorDefinition final
: public GarbageCollected<AudioWorkletProcessorDefinition>,
public NameClient {
public:
static AudioWorkletProcessorDefinition* Create(
const String& name,
V8BlinkAudioWorkletProcessorConstructor* constructor,
V8BlinkAudioWorkletProcessCallback* process);
explicit AudioWorkletProcessorDefinition(
const String& name,
V8BlinkAudioWorkletProcessorConstructor* constructor,
V8BlinkAudioWorkletProcessCallback* process);
~AudioWorkletProcessorDefinition();
const String& GetName() const { return name_; }
V8BlinkAudioWorkletProcessorConstructor* ConstructorFunction() const {
return constructor_;
}
V8BlinkAudioWorkletProcessCallback* ProcessFunction() const {
return process_;
}
void SetAudioParamDescriptors(
const HeapVector<Member<AudioParamDescriptor>>&);
const Vector<String> GetAudioParamDescriptorNames() const;
const AudioParamDescriptor* GetAudioParamDescriptor(const String& key) const;
// Flag for data synchronization of definition between
// AudioWorkletMessagingProxy and AudioWorkletGlobalScope.
bool IsSynchronized() const { return is_synchronized_; }
void MarkAsSynchronized() { is_synchronized_ = true; }
void Trace(Visitor* visitor) const;
const char* NameInHeapSnapshot() const override {
return "AudioWorkletProcessorDefinition";
}
private:
const String name_;
bool is_synchronized_ = false;
// The definition is per global scope. The active instance of
// |AudioProcessorWorklet| should be passed into these to perform JS function.
Member<V8BlinkAudioWorkletProcessorConstructor> constructor_;
Member<V8BlinkAudioWorkletProcessCallback> process_;
HeapVector<Member<AudioParamDescriptor>> audio_param_descriptors_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_WEBAUDIO_AUDIO_WORKLET_PROCESSOR_DEFINITION_H_
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