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      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
      6  * are met:
      7  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
     14  *     its contributors may be used to endorse or promote products derived
     15  *     from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef WebArrayBufferView_h
     30 #define WebArrayBufferView_h
     31 
     32 #include "../platform/WebCommon.h"
     33 #include "../platform/WebPrivatePtr.h"
     34 
     35 namespace v8 {
     36 class Value;
     37 template <class T> class Handle;
     38 }
     39 
     40 namespace WTF { class ArrayBufferView; }
     41 
     42 namespace blink {
     43 
     44 // Provides access to an ArrayBufferView.
     45 class WebArrayBufferView {
     46 public:
     47     ~WebArrayBufferView() { reset(); }
     48     WebArrayBufferView() { }
     49     WebArrayBufferView(const WebArrayBufferView& v) { assign(v); }
     50 
     51     BLINK_EXPORT void* baseAddress() const;
     52     BLINK_EXPORT unsigned byteOffset() const;
     53     BLINK_EXPORT unsigned byteLength() const;
     54 
     55     BLINK_EXPORT void assign(const WebArrayBufferView&);
     56     BLINK_EXPORT void reset();
     57 
     58     BLINK_EXPORT static WebArrayBufferView* createFromV8Value(v8::Handle<v8::Value>);
     59 
     60 #if BLINK_IMPLEMENTATION
     61     WebArrayBufferView(const WTF::PassRefPtr<WTF::ArrayBufferView>&);
     62     WebArrayBufferView& operator=(const WTF::PassRefPtr<WTF::ArrayBufferView>&);
     63     operator WTF::PassRefPtr<WTF::ArrayBufferView>() const;
     64 #endif
     65 
     66 private:
     67     WebPrivatePtr<WTF::ArrayBufferView> m_private;
     68 };
     69 
     70 } // namespace blink
     71 
     72 #endif
     73