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 37 namespace v8 { 38 class Value; 39 template <class T> class Handle; 40 } 41 42 namespace WTF { class ArrayBuffer; } 43 44 namespace blink { 45 46 class WebArrayBuffer { 47 public: 48 ~WebArrayBuffer() { reset(); } 49 50 WebArrayBuffer() { } 51 WebArrayBuffer(const WebArrayBuffer& b) { assign(b); } 52 WebArrayBuffer& operator=(const WebArrayBuffer& b) 53 { 54 assign(b); 55 return *this; 56 } 57 58 BLINK_EXPORT static WebArrayBuffer create(unsigned numElements, unsigned elementByteSize); 59 60 BLINK_EXPORT void reset(); 61 BLINK_EXPORT void assign(const WebArrayBuffer&); 62 63 bool isNull() const { return m_private.isNull(); } 64 BLINK_EXPORT void* data() const; 65 BLINK_EXPORT unsigned byteLength() const; 66 67 BLINK_EXPORT v8::Handle<v8::Value> toV8Value(); 68 BLINK_EXPORT static WebArrayBuffer* createFromV8Value(v8::Handle<v8::Value>); 69 70 #if BLINK_IMPLEMENTATION 71 WebArrayBuffer(const WTF::PassRefPtr<WTF::ArrayBuffer>&); 72 WebArrayBuffer& operator=(const PassRefPtr<WTF::ArrayBuffer>&); 73 operator WTF::PassRefPtr<WTF::ArrayBuffer>() const; 74 #endif 75 76 protected: 77 WebPrivatePtr<WTF::ArrayBuffer> m_private; 78 }; 79 80 } // namespace blink 81 82 #endif // WebArrayBuffer_h 83
