| /* |
| * 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 |