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// Copyright 2019 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_CORE_STREAMS_READABLE_STREAM_DEFAULT_CONTROLLER_WITH_SCRIPT_SCOPE_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_STREAMS_READABLE_STREAM_DEFAULT_CONTROLLER_WITH_SCRIPT_SCOPE_H_
#include "third_party/blink/renderer/bindings/core/v8/script_value.h"
#include "third_party/blink/renderer/bindings/core/v8/to_v8_for_core.h"
#include "third_party/blink/renderer/core/core_export.h"
#include "v8/include/v8.h"
namespace blink {
class ReadableStreamDefaultController;
class ScriptState;
class Visitor;
class CORE_EXPORT ReadableStreamDefaultControllerWithScriptScope
: public GarbageCollected<ReadableStreamDefaultControllerWithScriptScope> {
public:
ReadableStreamDefaultControllerWithScriptScope(ScriptState* script_state,
ScriptValue controller);
// Users of the ReadableStreamDefaultControllerWithScriptScope can call this
// to note that the stream has been canceled and thus they don't anticipate
// using the ReadableStreamDefaultControllerWithScriptScope anymore.
// (Close/DesiredSize/Enqueue/Error will become no-ops afterward.)
void NoteHasBeenCanceled();
void Close();
double DesiredSize() const;
void Enqueue(v8::Local<v8::Value> js_chunk) const;
void Error(v8::Local<v8::Value> js_error);
// Helper methods
template <typename ChunkType>
void Enqueue(ChunkType chunk) const {
ScriptState::Scope scope(script_state_);
v8::Local<v8::Value> js_chunk = ToV8(chunk, script_state_);
Enqueue(js_chunk);
}
template <typename ErrorType>
void Error(ErrorType error) {
ScriptState::Scope scope(script_state_);
v8::Local<v8::Value> js_error = ToV8(error, script_state_);
Error(js_error);
}
void Trace(Visitor*);
private:
const Member<ScriptState> script_state_;
Member<ReadableStreamDefaultController> controller_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_STREAMS_READABLE_STREAM_DEFAULT_CONTROLLER_WITH_SCRIPT_SCOPE_H_