1/* 2 * Copyright (c) 2009, Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31#ifndef RenderSVGModelObject_h 32#define RenderSVGModelObject_h 33 34#include "core/rendering/RenderObject.h" 35#include "core/rendering/svg/SVGRenderSupport.h" 36#include "core/svg/SVGElement.h" 37#include "core/svg/SVGRect.h" 38 39namespace WebCore { 40 41// Most renderers in the SVG rendering tree will inherit from this class 42// but not all. (e.g. RenderSVGForeignObject, RenderSVGBlock) thus methods 43// required by SVG renders need to be declared on RenderObject, but shared 44// logic can go in this class or in SVGRenderSupport. 45 46class SVGElement; 47 48class RenderSVGModelObject : public RenderObject { 49public: 50 explicit RenderSVGModelObject(SVGElement*); 51 52 virtual LayoutRect clippedOverflowRectForRepaint(const RenderLayerModelObject* repaintContainer) const OVERRIDE; 53 virtual void computeFloatRectForRepaint(const RenderLayerModelObject* repaintContainer, FloatRect&, bool fixed = false) const OVERRIDE FINAL; 54 virtual LayoutRect outlineBoundsForRepaint(const RenderLayerModelObject* repaintContainer, const RenderGeometryMap*) const OVERRIDE FINAL; 55 56 virtual void absoluteRects(Vector<IntRect>&, const LayoutPoint& accumulatedOffset) const OVERRIDE FINAL; 57 virtual void absoluteQuads(Vector<FloatQuad>&, bool* wasFixed) const; 58 59 virtual void mapLocalToContainer(const RenderLayerModelObject* repaintContainer, TransformState&, MapCoordinatesFlags = ApplyContainerFlip, bool* wasFixed = 0) const OVERRIDE FINAL; 60 virtual const RenderObject* pushMappingToContainer(const RenderLayerModelObject* ancestorToStopAt, RenderGeometryMap&) const OVERRIDE FINAL; 61 virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle); 62 63 static bool checkIntersection(RenderObject*, const SVGRect&); 64 static bool checkEnclosure(RenderObject*, const SVGRect&); 65 66 virtual void computeLayerHitTestRects(LayerHitTestRects&) const OVERRIDE; 67 68 SVGElement* element() const { return toSVGElement(RenderObject::node()); } 69 70protected: 71 virtual void addLayerHitTestRects(LayerHitTestRects&, const RenderLayer* currentCompositedLayer, const LayoutPoint& layerOffset, const LayoutRect& containerRect) const OVERRIDE; 72 virtual void willBeDestroyed(); 73 74private: 75 // RenderSVGModelObject subclasses should use element() instead. 76 void node() const WTF_DELETED_FUNCTION; 77 78 // This method should never be called, SVG uses a different nodeAtPoint method 79 bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) OVERRIDE; 80 virtual void absoluteFocusRingQuads(Vector<FloatQuad>&) OVERRIDE FINAL; 81}; 82 83} 84 85#endif 86