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/*
* Copyright (C) 2012 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef V8ArrayBufferCustom_h
#define V8ArrayBufferCustom_h
#include "bindings/v8/V8Binding.h"
#include "bindings/v8/V8DOMWrapper.h"
#include "bindings/v8/WrapperTypeInfo.h"
#include "wtf/ArrayBuffer.h"
#include <v8.h>
namespace WebCore {
class V8ArrayBufferDeallocationObserver: public WTF::ArrayBufferDeallocationObserver {
public:
virtual void arrayBufferDeallocated(unsigned sizeInBytes)
{
v8::Isolate::GetCurrent()->AdjustAmountOfExternalAllocatedMemory(-static_cast<int>(sizeInBytes));
}
static V8ArrayBufferDeallocationObserver* instanceTemplate();
protected:
virtual void blinkAllocatedMemory(unsigned sizeInBytes) OVERRIDE
{
v8::Isolate::GetCurrent()->AdjustAmountOfExternalAllocatedMemory(static_cast<int>(sizeInBytes));
}
};
class V8ArrayBuffer {
public:
static bool hasInstance(v8::Handle<v8::Value>, v8::Isolate*, WrapperWorldType);
static bool hasInstanceInAnyWorld(v8::Handle<v8::Value>, v8::Isolate*);
static ArrayBuffer* toNative(v8::Handle<v8::Object>);
static void derefObject(void*);
static const WrapperTypeInfo wrapperTypeInfo;
static const int internalFieldCount = v8DefaultWrapperInternalFieldCount;
static void installPerContextEnabledProperties(v8::Handle<v8::Object>, ArrayBuffer*, v8::Isolate*) { }
static void installPerContextEnabledMethods(v8::Handle<v8::Object>, v8::Isolate*) { }
static inline void* toInternalPointer(ArrayBuffer* impl)
{
return impl;
}
static inline ArrayBuffer* fromInternalPointer(void* impl)
{
return static_cast<ArrayBuffer*>(impl);
}
private:
friend v8::Handle<v8::Object> wrap(ArrayBuffer*, v8::Handle<v8::Object> creationContext, v8::Isolate*);
static v8::Handle<v8::Object> createWrapper(PassRefPtr<ArrayBuffer>, v8::Handle<v8::Object> creationContext, v8::Isolate*);
};
template<>
class WrapperTypeTraits<ArrayBuffer > {
public:
static const WrapperTypeInfo* wrapperTypeInfo() { return &V8ArrayBuffer::wrapperTypeInfo; }
};
inline v8::Handle<v8::Object> wrap(ArrayBuffer* impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
{
ASSERT(impl);
ASSERT(!DOMDataStore::containsWrapper<V8ArrayBuffer>(impl, isolate));
return V8ArrayBuffer::createWrapper(impl, creationContext, isolate);
}
inline v8::Handle<v8::Value> toV8(ArrayBuffer* impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
{
if (UNLIKELY(!impl))
return v8::Null(isolate);
v8::Handle<v8::Value> wrapper = DOMDataStore::getWrapper<V8ArrayBuffer>(impl, isolate);
if (!wrapper.IsEmpty())
return wrapper;
return wrap(impl, creationContext, isolate);
}
template<class CallbackInfo>
inline void v8SetReturnValue(const CallbackInfo& info, ArrayBuffer* impl)
{
if (UNLIKELY(!impl)) {
v8SetReturnValueNull(info);
return;
}
if (DOMDataStore::setReturnValueFromWrapper<V8ArrayBuffer>(info.GetReturnValue(), impl))
return;
v8::Handle<v8::Object> wrapper = wrap(impl, info.Holder(), info.GetIsolate());
v8SetReturnValue(info, wrapper);
}
template<class CallbackInfo>
inline void v8SetReturnValueForMainWorld(const CallbackInfo& info, ArrayBuffer* impl)
{
ASSERT(worldType(info.GetIsolate()) == MainWorld);
if (UNLIKELY(!impl)) {
v8SetReturnValueNull(info);
return;
}
if (DOMDataStore::setReturnValueFromWrapperForMainWorld<V8ArrayBuffer>(info.GetReturnValue(), impl))
return;
v8::Handle<v8::Value> wrapper = wrap(impl, info.Holder(), info.GetIsolate());
v8SetReturnValue(info, wrapper);
}
template<class CallbackInfo, class Wrappable>
inline void v8SetReturnValueFast(const CallbackInfo& info, ArrayBuffer* impl, Wrappable* wrappable)
{
if (UNLIKELY(!impl)) {
v8SetReturnValueNull(info);
return;
}
if (DOMDataStore::setReturnValueFromWrapperFast<V8ArrayBuffer>(info.GetReturnValue(), impl, info.Holder(), wrappable))
return;
v8::Handle<v8::Object> wrapper = wrap(impl, info.Holder(), info.GetIsolate());
v8SetReturnValue(info, wrapper);
}
inline v8::Handle<v8::Value> toV8(PassRefPtr< ArrayBuffer > impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
{
return toV8(impl.get(), creationContext, isolate);
}
template<class CallbackInfo>
inline void v8SetReturnValue(const CallbackInfo& info, PassRefPtr< ArrayBuffer > impl)
{
v8SetReturnValue(info, impl.get());
}
template<class CallbackInfo>
inline void v8SetReturnValueForMainWorld(const CallbackInfo& info, PassRefPtr< ArrayBuffer > impl)
{
v8SetReturnValueForMainWorld(info, impl.get());
}
template<class CallbackInfo, class Wrappable>
inline void v8SetReturnValueFast(const CallbackInfo& info, PassRefPtr< ArrayBuffer > impl, Wrappable* wrappable)
{
v8SetReturnValueFast(info, impl.get(), wrappable);
}
} // namespace WebCore
#endif // V8ArrayBufferCustom_h
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