third_party/WebKit/Source/web/WebArrayBufferConverter.cpp

   1 /*
   2  * Copyright (C) 2014 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/web/WebArrayBufferConverter.h"
  33
  34 #include "bindings/core/v8/V8ArrayBuffer.h"
  35
  36 namespace blink {
  37
  38 v8::Local<v8::Value> WebArrayBufferConverter::toV8Value(WebArrayBuffer* buffer, v8::Local<v8::Object> creationContext, v8::Isolate* isolate)
  39 {
  40     // We no longer use |creationContext| because it's often misused and points
  41     // to a context faked by user script.
  42     ASSERT(creationContext->CreationContext() == isolate->GetCurrentContext());
  43     if (!buffer)
  44         return v8::Local<v8::Value>();
  45     return toV8(PassRefPtr<DOMArrayBuffer>(*buffer), isolate->GetCurrentContext()->Global(), isolate);
  46 }
  47
  48 WebArrayBuffer* WebArrayBufferConverter::createFromV8Value(v8::Local<v8::Value> value, v8::Isolate* isolate)
  49 {
  50     if (!V8ArrayBuffer::hasInstance(value, isolate))
  51         return 0;
  52     return new WebArrayBuffer(V8ArrayBuffer::toImpl(value.As<v8::Object>()));
  53 }
  54
  55 } // namespace blink