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/*
* Copyright (C) 2007 Eric Seidel <eric@webkit.org>
* Copyright (C) 2009 Google, Inc.
*
* 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 LayoutSVGGradientStop_h
#define LayoutSVGGradientStop_h
#include "core/layout/LayoutObject.h"
namespace blink {
class SVGGradientElement;
class SVGStopElement;
// This class exists mostly so we can hear about gradient stop style changes
class LayoutSVGGradientStop final : public LayoutObject {
public:
explicit LayoutSVGGradientStop(SVGStopElement*);
~LayoutSVGGradientStop() override;
const char* name() const override { return "LayoutSVGGradientStop"; }
bool isOfType(LayoutObjectType type) const override { return type == LayoutObjectSVG || type == LayoutObjectSVGGradientStop || LayoutObject::isOfType(type); }
void layout() override;
// This overrides are needed to prevent ASSERTs on <svg><stop /></svg>
// LayoutObject's default implementations ASSERT_NOT_REACHED()
// https://bugs.webkit.org/show_bug.cgi?id=20400
LayoutRect localOverflowRectForPaintInvalidation() const override { return LayoutRect(); }
FloatRect objectBoundingBox() const override { return FloatRect(); }
FloatRect strokeBoundingBox() const override { return FloatRect(); }
FloatRect paintInvalidationRectInLocalSVGCoordinates() const override { return FloatRect(); }
protected:
void styleDidChange(StyleDifference, const ComputedStyle* oldStyle) override;
private:
SVGGradientElement* gradientElement() const;
};
DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutSVGGradientStop, isSVGGradientStop());
} // namespace blink
#endif // LayoutSVGGradientStop_h
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