1 /* 2 * Copyright (C) Research In Motion Limited 2010. All rights reserved. 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public License 15 * along with this library; see the file COPYING.LIB. If not, write to 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 */ 19 20 #ifndef RenderSVGResourceContainer_h 21 #define RenderSVGResourceContainer_h 22 23 #include "core/rendering/svg/RenderSVGHiddenContainer.h" 24 #include "core/rendering/svg/RenderSVGResource.h" 25 26 namespace WebCore { 27 28 class RenderLayer; 29 30 class RenderSVGResourceContainer : public RenderSVGHiddenContainer, 31 public RenderSVGResource { 32 public: 33 RenderSVGResourceContainer(SVGElement*); 34 virtual ~RenderSVGResourceContainer(); 35 36 virtual void layout(); 37 virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) OVERRIDE FINAL; 38 39 virtual bool isSVGResourceContainer() const OVERRIDE FINAL { return true; } 40 virtual RenderSVGResourceContainer* toRenderSVGResourceContainer() OVERRIDE FINAL { return this; } 41 42 static bool shouldTransformOnTextPainting(RenderObject*, AffineTransform&); 43 static AffineTransform transformOnNonScalingStroke(RenderObject*, const AffineTransform& resourceTransform); 44 45 void idChanged(); 46 void addClientRenderLayer(RenderLayer*); 47 void removeClientRenderLayer(RenderLayer*); 48 49 protected: 50 enum InvalidationMode { 51 LayoutAndBoundariesInvalidation, 52 BoundariesInvalidation, 53 RepaintInvalidation, 54 ParentOnlyInvalidation 55 }; 56 57 // Used from the invalidateClient/invalidateClients methods from classes, inheriting from us. 58 void markAllClientsForInvalidation(InvalidationMode); 59 void markAllClientLayersForInvalidation(); 60 void markClientForInvalidation(RenderObject*, InvalidationMode); 61 62 private: 63 friend class SVGResourcesCache; 64 void addClient(RenderObject*); 65 void removeClient(RenderObject*); 66 67 private: 68 virtual void willBeDestroyed() OVERRIDE FINAL; 69 void registerResource(); 70 71 AtomicString m_id; 72 bool m_registered : 1; 73 bool m_isInvalidating : 1; 74 HashSet<RenderObject*> m_clients; 75 HashSet<RenderLayer*> m_clientLayers; 76 }; 77 78 inline RenderSVGResourceContainer* getRenderSVGResourceContainerById(Document* document, const AtomicString& id) 79 { 80 if (id.isEmpty()) 81 return 0; 82 83 if (RenderSVGResourceContainer* renderResource = document->accessSVGExtensions()->resourceById(id)) 84 return renderResource; 85 86 return 0; 87 } 88 89 template<typename Renderer> 90 Renderer* getRenderSVGResourceById(Document* document, const AtomicString& id) 91 { 92 if (RenderSVGResourceContainer* container = getRenderSVGResourceContainerById(document, id)) 93 return container->cast<Renderer>(); 94 95 return 0; 96 } 97 98 } 99 100 #endif 101