1 /* 2 * Copyright (C) 2007 Eric Seidel <eric (at) webkit.org> 3 * Copyright (C) 2009 Google, Inc. 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Library General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public License 16 * along with this library; see the file COPYING.LIB. If not, write to 17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 18 * Boston, MA 02110-1301, USA. 19 */ 20 21 #ifndef RenderSVGGradientStop_h 22 #define RenderSVGGradientStop_h 23 24 #include "core/rendering/RenderObject.h" 25 26 namespace WebCore { 27 28 class SVGGradientElement; 29 class SVGStopElement; 30 31 // This class exists mostly so we can hear about gradient stop style changes 32 class RenderSVGGradientStop FINAL : public RenderObject { 33 public: 34 RenderSVGGradientStop(SVGStopElement*); 35 virtual ~RenderSVGGradientStop(); 36 37 virtual bool isSVGGradientStop() const { return true; } 38 virtual const char* renderName() const { return "RenderSVGGradientStop"; } 39 40 virtual void layout(); 41 42 // This overrides are needed to prevent ASSERTs on <svg><stop /></svg> 43 // RenderObject's default implementations ASSERT_NOT_REACHED() 44 // https://bugs.webkit.org/show_bug.cgi?id=20400 45 virtual LayoutRect clippedOverflowRectForRepaint(const RenderLayerModelObject*) const OVERRIDE { return LayoutRect(); } 46 virtual FloatRect objectBoundingBox() const { return FloatRect(); } 47 virtual FloatRect strokeBoundingBox() const { return FloatRect(); } 48 virtual FloatRect repaintRectInLocalCoordinates() const { return FloatRect(); } 49 50 protected: 51 virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle); 52 53 private: 54 SVGGradientElement* gradientElement() const; 55 }; 56 57 inline const RenderSVGGradientStop* toRenderSVGGradientStop(const RenderObject* object) 58 { 59 ASSERT_WITH_SECURITY_IMPLICATION(!object || object->isSVGGradientStop()); 60 return static_cast<const RenderSVGGradientStop*>(object); 61 } 62 63 } 64 65 #endif // RenderSVGGradientStop_h 66
