third_party/WebKit/public/web/WebArrayBufferView.h

   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 Local;
  38 }
  39
  40 namespace blink {
  41
  42 class DOMArrayBufferView;
  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::Local<v8::Value>);
  59
  60 #if BLINK_IMPLEMENTATION
  61     WebArrayBufferView(const WTF::PassRefPtr<DOMArrayBufferView>&);
  62     WebArrayBufferView& operator=(const WTF::PassRefPtr<DOMArrayBufferView>&);
  63     operator WTF::PassRefPtr<DOMArrayBufferView>() const;
  64 #endif
  65
  66 private:
  67     WebPrivatePtr<DOMArrayBufferView> m_private;
  68 };
  69
  70 } // namespace blink
  71
  72 #endif // WebArrayBufferView_h