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// Copyright 2014 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 DOMArrayBuffer_h
#define DOMArrayBuffer_h
#include "bindings/core/v8/ScriptWrappable.h"
#include "core/dom/DOMArrayBufferDeallocationObserver.h"
#include "wtf/ArrayBuffer.h"
#include "wtf/RefCounted.h"
namespace blink {
class DOMArrayBuffer final : public RefCounted<DOMArrayBuffer>, public ScriptWrappable {
DEFINE_WRAPPERTYPEINFO();
public:
static PassRefPtr<DOMArrayBuffer> create(PassRefPtr<WTF::ArrayBuffer> buffer)
{
return adoptRef(new DOMArrayBuffer(buffer));
}
static PassRefPtr<DOMArrayBuffer> create(unsigned numElements, unsigned elementByteSize)
{
return create(WTF::ArrayBuffer::create(numElements, elementByteSize));
}
static PassRefPtr<DOMArrayBuffer> create(const void* source, unsigned byteLength)
{
return create(WTF::ArrayBuffer::create(source, byteLength));
}
static PassRefPtr<DOMArrayBuffer> create(WTF::ArrayBufferContents& contents)
{
return create(WTF::ArrayBuffer::create(contents));
}
// Only for use by XMLHttpRequest::responseArrayBuffer and
// Internals::serializeObject.
static PassRefPtr<DOMArrayBuffer> createUninitialized(unsigned numElements, unsigned elementByteSize)
{
return create(WTF::ArrayBuffer::createUninitialized(numElements, elementByteSize));
}
const WTF::ArrayBuffer* buffer() const { return m_buffer.get(); }
WTF::ArrayBuffer* buffer() { return m_buffer.get(); }
const void* data() const { return buffer()->data(); }
void* data() { return buffer()->data(); }
unsigned byteLength() const { return buffer()->byteLength(); }
PassRefPtr<DOMArrayBuffer> slice(int begin, int end) const
{
return create(buffer()->slice(begin, end));
}
PassRefPtr<DOMArrayBuffer> slice(int begin) const
{
return create(buffer()->slice(begin));
}
bool transfer(WTF::ArrayBufferContents& result) { return buffer()->transfer(result); }
bool isNeutered() { return buffer()->isNeutered(); }
void setDeallocationObserver(DOMArrayBufferDeallocationObserver* observer)
{
buffer()->setDeallocationObserver(observer);
}
virtual v8::Handle<v8::Object> wrap(v8::Handle<v8::Object> creationContext, v8::Isolate*) override;
virtual v8::Handle<v8::Object> associateWithWrapper(v8::Isolate*, const WrapperTypeInfo*, v8::Handle<v8::Object> wrapper) override;
private:
explicit DOMArrayBuffer(PassRefPtr<WTF::ArrayBuffer> buffer)
: m_buffer(buffer)
{
ASSERT(m_buffer);
}
RefPtr<WTF::ArrayBuffer> m_buffer;
};
} // namespace blink
#endif // DOMArrayBuffer_h
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