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/*
* Copyright (C) 2000 Lars Knoll (knoll@kde.org)
* (C) 2000 Antti Koivisto (koivisto@kde.org)
* (C) 2000 Dirk Mueller (mueller@kde.org)
* Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_STYLE_STYLE_GENERATED_IMAGE_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_STYLE_STYLE_GENERATED_IMAGE_H_
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/style/style_image.h"
#include "third_party/blink/renderer/platform/wtf/casting.h"
namespace blink {
class CSSValue;
class CSSImageGeneratorValue;
class Document;
class ImageResourceObserver;
// This class represents a generated <image> such as a gradient or paint(...)
// function. Use only for images that have no intrinsic dimensions.
class CORE_EXPORT StyleGeneratedImage final : public StyleImage {
public:
explicit StyleGeneratedImage(const CSSImageGeneratorValue&);
WrappedImagePtr Data() const override { return image_generator_value_.Get(); }
CSSValue* CssValue() const override;
CSSValue* ComputedCSSValue(const ComputedStyle&,
bool allow_visited_style) const override;
bool IsAccessAllowed(String&) const override { return true; }
FloatSize ImageSize(float multiplier,
const FloatSize& default_object_size,
RespectImageOrientationEnum) const override;
bool HasIntrinsicSize() const override { return false; }
void AddClient(ImageResourceObserver*) override;
void RemoveClient(ImageResourceObserver*) override;
// The |target_size| is the desired image size
scoped_refptr<Image> GetImage(const ImageResourceObserver&,
const Document&,
const ComputedStyle&,
const FloatSize& target_size) const override;
bool KnownToBeOpaque(const Document&, const ComputedStyle&) const override;
bool IsUsingCustomProperty(const AtomicString& custom_property_name,
const Document&) const;
void Trace(Visitor*) const override;
private:
bool IsEqual(const StyleImage&) const override;
// TODO(sashab): Replace this with <const CSSImageGeneratorValue> once
// Member<> supports const types.
Member<CSSImageGeneratorValue> image_generator_value_;
};
template <>
struct DowncastTraits<StyleGeneratedImage> {
static bool AllowFrom(const StyleImage& styleImage) {
return styleImage.IsGeneratedImage();
}
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_STYLE_STYLE_GENERATED_IMAGE_H_
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