1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/canvas/src/ImageData.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,89 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim:set ts=2 sw=2 et tw=78: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this file,
1.8 + * You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef mozilla_dom_ImageData_h
1.11 +#define mozilla_dom_ImageData_h
1.12 +
1.13 +#include "nsIDOMCanvasRenderingContext2D.h"
1.14 +
1.15 +#include "mozilla/Attributes.h"
1.16 +#include "mozilla/dom/BindingUtils.h"
1.17 +#include "mozilla/dom/TypedArray.h"
1.18 +#include <stdint.h>
1.19 +
1.20 +#include "nsCycleCollectionParticipant.h"
1.21 +#include "nsISupportsImpl.h"
1.22 +#include "js/GCAPI.h"
1.23 +
1.24 +namespace mozilla {
1.25 +namespace dom {
1.26 +
1.27 +class ImageData MOZ_FINAL : public nsISupports
1.28 +{
1.29 +public:
1.30 + ImageData(uint32_t aWidth, uint32_t aHeight, JSObject& aData)
1.31 + : mWidth(aWidth)
1.32 + , mHeight(aHeight)
1.33 + , mData(&aData)
1.34 + {
1.35 + MOZ_COUNT_CTOR(ImageData);
1.36 + HoldData();
1.37 + }
1.38 +
1.39 + ~ImageData()
1.40 + {
1.41 + MOZ_COUNT_DTOR(ImageData);
1.42 + DropData();
1.43 + }
1.44 +
1.45 + NS_DECL_CYCLE_COLLECTING_ISUPPORTS
1.46 + NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(ImageData)
1.47 +
1.48 + static ImageData* Constructor(const GlobalObject& aGlobal,
1.49 + const uint32_t aWidth,
1.50 + const uint32_t aHeight,
1.51 + ErrorResult& aRv);
1.52 +
1.53 + static ImageData* Constructor(const GlobalObject& aGlobal,
1.54 + const Uint8ClampedArray& aData,
1.55 + const uint32_t aWidth,
1.56 + const Optional<uint32_t>& aHeight,
1.57 + ErrorResult& aRv);
1.58 +
1.59 + uint32_t Width() const
1.60 + {
1.61 + return mWidth;
1.62 + }
1.63 + uint32_t Height() const
1.64 + {
1.65 + return mHeight;
1.66 + }
1.67 + void GetData(JSContext* cx, JS::MutableHandle<JSObject*> aData) const
1.68 + {
1.69 + aData.set(GetDataObject());
1.70 + }
1.71 + JSObject* GetDataObject() const
1.72 + {
1.73 + JS::ExposeObjectToActiveJS(mData);
1.74 + return mData;
1.75 + }
1.76 +
1.77 + JSObject* WrapObject(JSContext* cx);
1.78 +
1.79 +private:
1.80 + void HoldData();
1.81 + void DropData();
1.82 +
1.83 + ImageData() MOZ_DELETE;
1.84 +
1.85 + uint32_t mWidth, mHeight;
1.86 + JS::Heap<JSObject*> mData;
1.87 +};
1.88 +
1.89 +} // namespace dom
1.90 +} // namespace mozilla
1.91 +
1.92 +#endif // mozilla_dom_ImageData_h
