Index: Source/bindings/v8/custom/V8TypedArrayCustom.h |
diff --git a/Source/bindings/v8/custom/V8TypedArrayCustom.h b/Source/bindings/v8/custom/V8TypedArrayCustom.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..44997bffe824e0f7ac9447b7c34c556ce429536a |
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+++ b/Source/bindings/v8/custom/V8TypedArrayCustom.h |
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+/* |
+ * Copyright (C) 2013 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: |
+ * |
+ * * Redistributions of source code must retain the above copyright |
+ * notice, this list of conditions and the following disclaimer. |
+ * * 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. |
+ * * Neither the name of Google Inc. nor the names of its |
+ * contributors may be used to endorse or promote products derived from |
+ * this software without specific prior written permission. |
+ * |
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT |
+ * OWNER OR 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 V8TypedArrayCustom_h |
+#define V8TypedArrayCustom_h |
+ |
+#include "bindings/v8/V8Binding.h" |
+#include "bindings/v8/V8DOMWrapper.h" |
+#include "bindings/v8/WrapperTypeInfo.h" |
+#include "bindings/v8/custom/V8ArrayBufferCustom.h" |
+ |
+#include "wtf/ArrayBuffer.h" |
+ |
+#include <v8.h> |
+ |
+namespace WebCore { |
+ |
+template<typename T> |
+class TypedArrayTraits |
+{ }; |
+ |
+template<typename TypedArray> |
+class V8TypedArray { |
+public: |
+ static bool HasInstance(v8::Handle<v8::Value> value, v8::Isolate*, WrapperWorldType) |
+ { |
+ return TypedArrayTraits<TypedArray>::IsInstance(value); |
+ } |
+ |
+ static bool HasInstanceInAnyWorld(v8::Handle<v8::Value> value, v8::Isolate*) |
+ { |
+ return TypedArrayTraits<TypedArray>::IsInstance(value); |
+ } |
+ |
+ static TypedArray* toNative(v8::Handle<v8::Object>); |
+ static void derefObject(void*); |
+ static WrapperTypeInfo info; |
+ static const int internalFieldCount = v8DefaultWrapperInternalFieldCount; |
+ |
+ static v8::Handle<v8::Object> wrap(TypedArray* impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate) |
+ { |
+ ASSERT(impl); |
+ ASSERT((DOMDataStore::template getWrapper<Binding>(impl, isolate).IsEmpty())); |
+ return V8TypedArray<TypedArray>::createWrapper(impl, creationContext, isolate); |
+ } |
+ |
+ static v8::Handle<v8::Value> toV8(TypedArray* impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate) |
+ { |
+ if (UNLIKELY(!impl)) |
+ return v8NullWithCheck(isolate); |
+ v8::Handle<v8::Value> wrapper = DOMDataStore::getWrapper<Binding>(impl, isolate); |
+ if (!wrapper.IsEmpty()) |
+ return wrapper; |
+ return wrap(impl, creationContext, isolate); |
+ } |
+ |
+ static v8::Handle<v8::Value> toV8ForMainWorld(TypedArray* impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate) |
+ { |
+ ASSERT(worldType(isolate) == MainWorld); |
+ if (UNLIKELY(!impl)) |
+ return v8NullWithCheck(isolate); |
+ v8::Handle<v8::Value> wrapper = DOMDataStore::getWrapperForMainWorld<Binding>(impl); |
+ if (!wrapper.IsEmpty()) |
+ return wrapper; |
+ return wrap(impl, creationContext, isolate); |
+ } |
+ |
+ template<class HolderContainer, class Wrappable> |
+ static v8::Handle<v8::Value> toV8Fast(TypedArray* impl, const HolderContainer& container, Wrappable* wrappable) |
+ { |
+ if (UNLIKELY(!impl)) |
+ return v8::Null(container.GetIsolate()); |
+ v8::Handle<v8::Object> wrapper = DOMDataStore::getWrapperFast<Binding>(impl, container, wrappable); |
+ if (!wrapper.IsEmpty()) |
+ return wrapper; |
+ return wrap(impl, container.Holder(), container.GetIsolate()); |
+ } |
+ |
+ template<class HolderContainer, class Wrappable> |
+ static v8::Handle<v8::Value> toV8FastForMainWorld(TypedArray* impl, const HolderContainer& container, Wrappable* wrappable) |
+ { |
+ ASSERT(worldType(container.GetIsolate()) == MainWorld); |
+ if (UNLIKELY(!impl)) |
+ return v8::Null(container.GetIsolate()); |
+ v8::Handle<v8::Object> wrapper = DOMDataStore::getWrapperForMainWorld<Binding>(impl); |
+ if (!wrapper.IsEmpty()) |
+ return wrapper; |
+ return wrap(impl, container.Holder(), container.GetIsolate()); |
+ } |
+ |
+ static inline void* toInternalPointer(TypedArray* impl) |
+ { |
+ return impl; |
+ } |
+private: |
+ typedef TypedArrayTraits<TypedArray> Traits; |
+ typedef typename Traits::V8Type V8Type; |
+ typedef V8TypedArray<TypedArray> Binding; |
+ |
+ static v8::Handle<v8::Object> createWrapper(PassRefPtr<TypedArray>, v8::Handle<v8::Object> creationContext, v8::Isolate*); |
+}; |
+ |
+template<typename TypedArray> |
+class TypedArrayWrapperTraits { |
+public: |
+ static WrapperTypeInfo* info() { return &V8TypedArray<TypedArray>::info; } |
+}; |
+ |
+ |
+template <typename TypedArray> |
+v8::Handle<v8::Object> V8TypedArray<TypedArray>::createWrapper(PassRefPtr<TypedArray> impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate) |
+{ |
+ ASSERT(impl.get()); |
+ ASSERT(DOMDataStore::getWrapper<Binding>(impl.get(), isolate).IsEmpty()); |
+ |
+ RefPtr<ArrayBuffer> buffer = impl->buffer(); |
+ v8::Local<v8::Value> v8Buffer = v8::Local<v8::Value>::New(WebCore::toV8(buffer.get(), creationContext, isolate)); |
+ |
+ ASSERT(v8Buffer->IsArrayBuffer()); |
+ |
+ v8::Local<v8::Object> wrapper = V8Type::New(v8Buffer.As<v8::ArrayBuffer>(), impl->byteOffset(), Traits::length(impl.get())); |
+ |
+ V8DOMWrapper::associateObjectWithWrapper<Binding>(impl, &info, wrapper, isolate, WrapperConfiguration::Independent); |
+ return wrapper; |
+} |
+ |
+template <typename TypedArray> |
+TypedArray* V8TypedArray<TypedArray>::toNative(v8::Handle<v8::Object> object) |
+{ |
+ ASSERT(Traits::IsInstance(object)); |
+ void* typedarrayPtr = object->GetAlignedPointerFromInternalField(v8DOMWrapperObjectIndex); |
+ if (typedarrayPtr) |
+ return reinterpret_cast<TypedArray*>(typedarrayPtr); |
+ |
+ v8::Handle<V8Type> view = object.As<V8Type>(); |
+ RefPtr<ArrayBuffer> arrayBuffer = V8ArrayBuffer::toNative(view->Buffer()); |
+ RefPtr<TypedArray> typedArray = TypedArray::create(arrayBuffer, view->ByteOffset(), Traits::length(view)); |
+ ASSERT(typedArray.get()); |
+ V8DOMWrapper::associateObjectWithWrapper<Binding>(typedArray.release(), &info, object, v8::Isolate::GetCurrent(), WrapperConfiguration::Independent); |
+ |
+ typedarrayPtr = object->GetAlignedPointerFromInternalField(v8DOMWrapperObjectIndex); |
+ ASSERT(typedarrayPtr); |
+ return reinterpret_cast<TypedArray*>(typedarrayPtr); |
+} |
+ |
+ |
+template <typename TypedArray> |
+WrapperTypeInfo V8TypedArray<TypedArray>::info = { |
+ 0, V8TypedArray<TypedArray>::derefObject, |
+ 0, 0, 0, 0, 0, WrapperTypeObjectPrototype |
+}; |
+ |
+template <typename TypedArray> |
+void V8TypedArray<TypedArray>::derefObject(void* object) |
+{ |
+ static_cast<TypedArray*>(object)->deref(); |
+} |
+ |
+ |
+} // namespace WebCode |
+ |
+#endif // V8TypedArrayCustom_h |