Source/WebCore/rendering/svg/RenderSVGModelObject.h

/*
 * Copyright (c) 2009, Google Inc. All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 * 
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#pragma once

#include "RenderElement.h"
#include "SVGElement.h"
#include "SVGRenderSupport.h"

namespace WebCore {

// Most renderers in the SVG rendering tree will inherit from this class
// but not all. (e.g. RenderSVGForeignObject, RenderSVGBlock) thus methods
// required by SVG renders need to be declared on RenderObject, but shared
// logic can go in this class or in SVGRenderSupport.

class SVGElement;

class RenderSVGModelObject : public RenderElement {
    WTF_MAKE_ISO_ALLOCATED(RenderSVGModelObject);
public:
    LayoutRect clippedOverflowRect(const RenderLayerModelObject* repaintContainer, VisibleRectContext) const override;
    std::optional<FloatRect> computeFloatVisibleRectInContainer(const FloatRect&, const RenderLayerModelObject* container, VisibleRectContext) const final;
    LayoutRect outlineBoundsForRepaint(const RenderLayerModelObject* repaintContainer, const RenderGeometryMap*) const final;

    void absoluteRects(Vector<IntRect>&, const LayoutPoint& accumulatedOffset) const final;
    void absoluteQuads(Vector<FloatQuad>&, bool* wasFixed) const override;

    void mapLocalToContainer(const RenderLayerModelObject* ancestorContainer, TransformState&, OptionSet<MapCoordinatesMode>, bool* wasFixed) const final;
    const RenderObject* pushMappingToContainer(const RenderLayerModelObject* ancestorToStopAt, RenderGeometryMap&) const final;
    void styleDidChange(StyleDifference, const RenderStyle* oldStyle) override;

    static bool checkIntersection(RenderElement*, const FloatRect&);
    static bool checkEnclosure(RenderElement*, const FloatRect&);

    SVGElement& element() const { return downcast<SVGElement>(nodeForNonAnonymous()); }

protected:
    RenderSVGModelObject(SVGElement&, RenderStyle&&);

    void willBeDestroyed() override;

private:
    bool isRenderSVGModelObject() const final { return true; }

    // This method should never be called, SVG uses a different nodeAtPoint method
    bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) override;
    void absoluteFocusRingQuads(Vector<FloatQuad>&) final;
};

} // namespace WebCore

SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderSVGModelObject, isRenderSVGModelObject())