1/* 2 * Copyright (C) 2011 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31#ifndef WebArrayBuffer_h 32#define WebArrayBuffer_h 33 34#include "WebCommon.h" 35#include "WebPrivatePtr.h" 36 37namespace v8 { 38class Value; 39template <class T> class Handle; 40} 41 42namespace WTF { class ArrayBuffer; } 43 44#if INSIDE_BLINK 45namespace WTF { template <typename T> class PassRefPtr; } 46#endif 47 48namespace blink { 49 50class WebArrayBuffer { 51public: 52 ~WebArrayBuffer() { reset(); } 53 54 WebArrayBuffer() { } 55 WebArrayBuffer(const WebArrayBuffer& b) { assign(b); } 56 WebArrayBuffer& operator=(const WebArrayBuffer& b) 57 { 58 assign(b); 59 return *this; 60 } 61 62 BLINK_PLATFORM_EXPORT static WebArrayBuffer create(unsigned numElements, unsigned elementByteSize); 63 64 BLINK_PLATFORM_EXPORT void reset(); 65 BLINK_PLATFORM_EXPORT void assign(const WebArrayBuffer&); 66 67 bool isNull() const { return m_private.isNull(); } 68 BLINK_PLATFORM_EXPORT void* data() const; 69 BLINK_PLATFORM_EXPORT unsigned byteLength() const; 70 71#if INSIDE_BLINK 72 BLINK_PLATFORM_EXPORT WebArrayBuffer(const WTF::PassRefPtr<WTF::ArrayBuffer>&); 73 BLINK_PLATFORM_EXPORT WebArrayBuffer& operator=(const WTF::PassRefPtr<WTF::ArrayBuffer>&); 74 BLINK_PLATFORM_EXPORT operator WTF::PassRefPtr<WTF::ArrayBuffer>() const; 75#endif 76 77protected: 78 WebPrivatePtr<WTF::ArrayBuffer> m_private; 79}; 80 81} // namespace blink 82 83#endif // WebArrayBuffer_h 84