Home | History | Annotate | Download | only in support 
      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 #include "config.h"
     32 #include "public/platform/WebArrayBuffer.h"
     33 
     34 #include "bindings/v8/custom/V8ArrayBufferCustom.h"
     35 #include "wtf/ArrayBuffer.h"
     36 #include "wtf/PassOwnPtr.h"
     37 
     38 using namespace WebCore;
     39 
     40 namespace WebKit {
     41 
     42 WebArrayBuffer WebArrayBuffer::create(unsigned numElements, unsigned elementByteSize)
     43 {
     44     RefPtr<ArrayBuffer> buffer = ArrayBuffer::create(numElements, elementByteSize);
     45     return WebArrayBuffer(buffer);
     46 }
     47 
     48 void WebArrayBuffer::reset()
     49 {
     50     m_private.reset();
     51 }
     52 
     53 void WebArrayBuffer::assign(const WebArrayBuffer& other)
     54 {
     55     m_private = other.m_private;
     56 }
     57 
     58 void* WebArrayBuffer::data() const
     59 {
     60     if (!isNull())
     61         return const_cast<void*>(m_private->data());
     62     return 0;
     63 }
     64 
     65 unsigned WebArrayBuffer::byteLength() const
     66 {
     67     if (!isNull())
     68         return m_private->byteLength();
     69     return 0;
     70 }
     71 
     72 v8::Handle<v8::Value> WebArrayBuffer::toV8Value()
     73 {
     74     if (!m_private.get())
     75         return v8::Handle<v8::Value>();
     76     return toV8(m_private.get(), v8::Handle<v8::Object>(), v8::Isolate::GetCurrent());
     77 }
     78 
     79 WebArrayBuffer* WebArrayBuffer::createFromV8Value(v8::Handle<v8::Value> value)
     80 {
     81     if (!V8ArrayBuffer::HasInstanceInAnyWorld(value, v8::Isolate::GetCurrent()))
     82         return 0;
     83     WTF::ArrayBuffer* buffer = V8ArrayBuffer::toNative(value->ToObject());
     84     return new WebArrayBuffer(buffer);
     85 }
     86 
     87 WebArrayBuffer::WebArrayBuffer(const WTF::PassRefPtr<WTF::ArrayBuffer>& blob)
     88     : m_private(blob)
     89 {
     90 }
     91 
     92 WebArrayBuffer& WebArrayBuffer::operator=(const WTF::PassRefPtr<WTF::ArrayBuffer>& blob)
     93 {
     94     m_private = blob;
     95     return *this;
     96 }
     97 
     98 WebArrayBuffer::operator WTF::PassRefPtr<WTF::ArrayBuffer>() const
     99 {
    100     return m_private.get();
    101 }
    102 
    103 } // namespace WebKit
    104