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// Copyright 2021 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_STYLE_STYLE_CROSSFADE_IMAGE_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_STYLE_STYLE_CROSSFADE_IMAGE_H_
#include "third_party/blink/renderer/core/style/style_image.h"
#include "third_party/blink/renderer/platform/wtf/casting.h"
namespace blink {
namespace cssvalue {
class CSSCrossfadeValue;
}
// This class represents a <cross-fade()> <image> function.
class StyleCrossfadeImage final : public StyleImage {
public:
StyleCrossfadeImage(cssvalue::CSSCrossfadeValue&,
StyleImage* from_image,
StyleImage* to_image);
~StyleCrossfadeImage() override;
CSSValue* CssValue() const override;
CSSValue* ComputedCSSValue(const ComputedStyle&,
bool allow_visited_style) const override;
bool CanRender() const override;
bool IsLoaded() const override;
bool ErrorOccurred() const override;
bool IsAccessAllowed(String&) const override;
FloatSize ImageSize(float multiplier,
const FloatSize& default_object_size,
RespectImageOrientationEnum) const override;
bool HasIntrinsicSize() const override;
void AddClient(ImageResourceObserver*) override;
void RemoveClient(ImageResourceObserver*) override;
scoped_refptr<Image> GetImage(const ImageResourceObserver&,
const Document&,
const ComputedStyle&,
const FloatSize& target_size) const override;
WrappedImagePtr Data() const override;
bool KnownToBeOpaque(const Document&, const ComputedStyle&) const override;
void Trace(Visitor*) const override;
private:
bool IsEqual(const StyleImage&) const override;
Member<cssvalue::CSSCrossfadeValue> original_value_;
Member<StyleImage> from_image_;
Member<StyleImage> to_image_;
};
template <>
struct DowncastTraits<StyleCrossfadeImage> {
static bool AllowFrom(const StyleImage& style_image) {
return style_image.IsCrossfadeImage();
}
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_STYLE_STYLE_CROSSFADE_IMAGE_H_
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