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/* -*- 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
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