/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim:set ts=2 sw=2 et tw=78: */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this file, * You can obtain one at http://mozilla.org/MPL/2.0/. */ #ifndef mozilla_dom_ImageData_h #define mozilla_dom_ImageData_h #include "nsIDOMCanvasRenderingContext2D.h" #include "mozilla/Attributes.h" #include "mozilla/dom/BindingUtils.h" #include "mozilla/dom/TypedArray.h" #include <stdint.h> #include "nsCycleCollectionParticipant.h" #include "nsISupportsImpl.h" #include "js/GCAPI.h" namespace mozilla { namespace dom { class ImageData final : public nsISupports { ~ImageData() { MOZ_COUNT_DTOR(ImageData); DropData(); } public: ImageData(uint32_t aWidth, uint32_t aHeight, JSObject& aData) : mWidth(aWidth) , mHeight(aHeight) , mData(&aData) { MOZ_COUNT_CTOR(ImageData); HoldData(); } NS_DECL_CYCLE_COLLECTING_ISUPPORTS NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(ImageData) static already_AddRefed<ImageData> Constructor(const GlobalObject& aGlobal, const uint32_t aWidth, const uint32_t aHeight, ErrorResult& aRv); static already_AddRefed<ImageData> Constructor(const GlobalObject& aGlobal, const Uint8ClampedArray& aData, const uint32_t aWidth, const Optional<uint32_t>& aHeight, ErrorResult& aRv); uint32_t Width() const { return mWidth; } uint32_t Height() const { return mHeight; } void GetData(JSContext* cx, JS::MutableHandle<JSObject*> aData) const { aData.set(GetDataObject()); } JSObject* GetDataObject() const { return mData; } bool WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector); private: void HoldData(); void DropData(); ImageData() = delete; uint32_t mWidth, mHeight; JS::Heap<JSObject*> mData; }; } // namespace dom } // namespace mozilla #endif // mozilla_dom_ImageData_h