CanvasGradient.h - mozsearch

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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 "nsTArray.h"

#include "mozilla/RefPtr.h"

#include "mozilla/dom/CanvasRenderingContext2DBinding.h"

#include "mozilla/gfx/2D.h"

#include "nsWrapperCache.h"

#include "gfxGradientCache.h"

namespace mozilla::dom {

class CanvasRenderingContext2D;

class CanvasGradient : public nsWrapperCache {

 public:

  NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(CanvasGradient)

  NS_DECL_CYCLE_COLLECTION_NATIVE_WRAPPERCACHE_CLASS(CanvasGradient)

  enum class Type : uint8_t { LINEAR = 0, RADIAL, CONIC };

  Type GetType() { return mType; }

  already_AddRefed<mozilla::gfx::GradientStops> GetGradientStopsForTarget(

      mozilla::gfx::DrawTarget* aRT) {

    return gfx::gfxGradientCache::GetOrCreateGradientStops(

        aRT, mRawStops, gfx::ExtendMode::CLAMP);

  // WebIDL

  void AddColorStop(float offset, const nsACString& colorstr, ErrorResult& rv);

  JSObject* WrapObject(JSContext* aCx,

                       JS::Handle<JSObject*> aGivenProto) override {

    return CanvasGradient_Binding::Wrap(aCx, this, aGivenProto);

  CanvasRenderingContext2D* GetParentObject() { return mContext; }

 protected:

  friend struct CanvasBidiProcessor;

  CanvasGradient(CanvasRenderingContext2D* aContext, Type aType);

  virtual ~CanvasGradient();

  RefPtr<CanvasRenderingContext2D> mContext;

  nsTArray<mozilla::gfx::GradientStop> mRawStops;

  Type mType;

};

}  // namespace mozilla::dom

#endif  // mozilla_dom_CanvasGradient_h