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/* 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_CanvasGradient_h
#define mozilla_dom_CanvasGradient_h
#include "mozilla/Attributes.h"
#include "nsTArray.h"
#include "mozilla/RefPtr.h"
#include "mozilla/dom/CanvasRenderingContext2DBinding.h"
#include "mozilla/dom/CanvasRenderingContext2D.h"
#include "mozilla/gfx/2D.h"
#include "nsWrapperCache.h"
#include "gfxGradientCache.h"
namespace mozilla {
namespace dom {
class CanvasGradient : public nsWrapperCache
{
public:
NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(CanvasGradient)
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(CanvasGradient)
enum class Type : uint8_t {
LINEAR = 0,
RADIAL
};
Type GetType()
{
return mType;
}
mozilla::gfx::GradientStops *
GetGradientStopsForTarget(mozilla::gfx::DrawTarget *aRT)
{
if (mStops && mStops->GetBackendType() == aRT->GetBackendType()) {
return mStops;
}
mStops =
gfx::gfxGradientCache::GetOrCreateGradientStops(aRT,
mRawStops,
gfx::ExtendMode::CLAMP);
return mStops;
}
// WebIDL
void AddColorStop(float offset, const nsAString& colorstr, ErrorResult& rv);
JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override
{
return CanvasGradientBinding::Wrap(aCx, this, aGivenProto);
}
CanvasRenderingContext2D* GetParentObject()
{
return mContext;
}
protected:
friend struct CanvasBidiProcessor;
CanvasGradient(CanvasRenderingContext2D* aContext, Type aType)
: mContext(aContext)
, mType(aType)
{
}
RefPtr<CanvasRenderingContext2D> mContext;
nsTArray<mozilla::gfx::GradientStop> mRawStops;
RefPtr<mozilla::gfx::GradientStops> mStops;
Type mType;
virtual ~CanvasGradient() {}
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_CanvasGradient_h
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