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/svg/SVGElement.h" 36 #include "platform/geometry/FloatRect.h" 37 38 namespace blink { 39 40 // Most renderers in the SVG rendering tree will inherit from this class 41 // but not all. (e.g. RenderSVGForeignObject, RenderSVGBlock) thus methods 42 // required by SVG renders need to be declared on RenderObject, but shared 43 // logic can go in this class or in SVGRenderSupport. 44 45 class SVGElement; 46 47 class RenderSVGModelObject : public RenderObject { 48 public: 49 explicit RenderSVGModelObject(SVGElement*); 50 51 virtual bool isChildAllowed(RenderObject*, RenderStyle*) const OVERRIDE; canHaveWhitespaceChildren()52 virtual bool canHaveWhitespaceChildren() const OVERRIDE { return false; } 53 54 virtual LayoutRect clippedOverflowRectForPaintInvalidation(const RenderLayerModelObject* paintInvalidationContainer, const PaintInvalidationState* = 0) const OVERRIDE; 55 virtual void computeFloatRectForPaintInvalidation(const RenderLayerModelObject* paintInvalidationContainer, FloatRect&, const PaintInvalidationState*) const OVERRIDE FINAL; 56 57 virtual void absoluteRects(Vector<IntRect>&, const LayoutPoint& accumulatedOffset) const OVERRIDE FINAL; 58 virtual void absoluteQuads(Vector<FloatQuad>&, bool* wasFixed) const OVERRIDE; 59 60 virtual void mapLocalToContainer(const RenderLayerModelObject* paintInvalidationContainer, TransformState&, MapCoordinatesFlags = ApplyContainerFlip, bool* wasFixed = 0, const PaintInvalidationState* = 0) const OVERRIDE FINAL; 61 virtual const RenderObject* pushMappingToContainer(const RenderLayerModelObject* ancestorToStopAt, RenderGeometryMap&) const OVERRIDE FINAL; 62 virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) OVERRIDE; 63 64 virtual void computeLayerHitTestRects(LayerHitTestRects&) const OVERRIDE FINAL; 65 element()66 SVGElement* element() const { return toSVGElement(RenderObject::node()); } 67 isSVG()68 virtual bool isSVG() const OVERRIDE FINAL { return true; } 69 70 protected: 71 virtual void addLayerHitTestRects(LayerHitTestRects&, const RenderLayer* currentCompositedLayer, const LayoutPoint& layerOffset, const LayoutRect& containerRect) const OVERRIDE FINAL; 72 virtual void willBeDestroyed() OVERRIDE; 73 74 private: 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 virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) OVERRIDE FINAL; 80 virtual IntRect absoluteFocusRingBoundingBoxRect() const OVERRIDE FINAL; 81 82 InvalidationReason invalidatePaintIfNeeded(const PaintInvalidationState&, const RenderLayerModelObject& paintInvalidationContainer) OVERRIDE FINAL; 83 }; 84 85 } 86 87 #endif 88