third_party/WebKit/public/web/WebArrayBufferView.h

/*
 * Copyright (C) 2011 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1.  Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 * 2.  Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
 *     its contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef WebArrayBufferView_h
#define WebArrayBufferView_h

#include "public/platform/WebCommon.h"
#include "public/platform/WebPrivatePtr.h"

namespace v8 {
class Value;
template <class T>
class Local;
}

namespace blink {

class DOMArrayBufferView;

// Provides access to an ArrayBufferView.
class WebArrayBufferView {
 public:
  ~WebArrayBufferView() { Reset(); }
  WebArrayBufferView() {}
  WebArrayBufferView(const WebArrayBufferView& v) { Assign(v); }

  BLINK_EXPORT void* BaseAddress() const;
  BLINK_EXPORT unsigned ByteOffset() const;
  BLINK_EXPORT unsigned ByteLength() const;

  BLINK_EXPORT void Assign(const WebArrayBufferView&);
  BLINK_EXPORT void Reset();

  BLINK_EXPORT static WebArrayBufferView* CreateFromV8Value(
      v8::Local<v8::Value>);

#if INSIDE_BLINK
  WebArrayBufferView(DOMArrayBufferView*);
  WebArrayBufferView& operator=(DOMArrayBufferView*);
  operator DOMArrayBufferView*() const;
#endif

 private:
  WebPrivatePtr<DOMArrayBufferView> private_;
};

}  // namespace blink

#endif  // WebArrayBufferView_h