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| 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/svg/SVGDocumentExtensions.h" | |
| 25 | |
| 26 namespace blink { | |
| 27 | |
| 28 enum RenderSVGResourceType { | |
| 29 MaskerResourceType, | |
| 30 MarkerResourceType, | |
| 31 PatternResourceType, | |
| 32 LinearGradientResourceType, | |
| 33 RadialGradientResourceType, | |
| 34 FilterResourceType, | |
| 35 ClipperResourceType | |
| 36 }; | |
| 37 | |
| 38 class Layer; | |
| 39 | |
| 40 class RenderSVGResourceContainer : public RenderSVGHiddenContainer { | |
| 41 public: | |
| 42 explicit RenderSVGResourceContainer(SVGElement*); | |
| 43 virtual ~RenderSVGResourceContainer(); | |
| 44 | |
| 45 virtual void removeAllClientsFromCache(bool markForInvalidation = true) = 0; | |
| 46 virtual void removeClientFromCache(LayoutObject*, bool markForInvalidation =
true) = 0; | |
| 47 | |
| 48 virtual void layout() override; | |
| 49 virtual void styleDidChange(StyleDifference, const LayoutStyle* oldStyle) ov
erride final; | |
| 50 virtual bool isOfType(LayoutObjectType type) const override { return type ==
LayoutObjectSVGResourceContainer || RenderSVGHiddenContainer::isOfType(type); } | |
| 51 | |
| 52 virtual RenderSVGResourceType resourceType() const = 0; | |
| 53 | |
| 54 bool isSVGPaintServer() const | |
| 55 { | |
| 56 RenderSVGResourceType resourceType = this->resourceType(); | |
| 57 return resourceType == PatternResourceType | |
| 58 || resourceType == LinearGradientResourceType | |
| 59 || resourceType == RadialGradientResourceType; | |
| 60 } | |
| 61 | |
| 62 void idChanged(); | |
| 63 void addClientLayer(Node*); | |
| 64 void addClientLayer(Layer*); | |
| 65 void removeClientLayer(Layer*); | |
| 66 | |
| 67 void invalidateCacheAndMarkForLayout(SubtreeLayoutScope* = 0); | |
| 68 | |
| 69 static void markForLayoutAndParentResourceInvalidation(LayoutObject*, bool n
eedsLayout = true); | |
| 70 | |
| 71 protected: | |
| 72 // When adding modes, make sure we don't overflow m_invalidationMask below. | |
| 73 enum InvalidationMode { | |
| 74 LayoutAndBoundariesInvalidation = 1 << 0, | |
| 75 BoundariesInvalidation = 1 << 1, | |
| 76 PaintInvalidation = 1 << 2, | |
| 77 ParentOnlyInvalidation = 1 << 3 | |
| 78 }; | |
| 79 | |
| 80 // Used from the invalidateClient/invalidateClients methods from classes, in
heriting from us. | |
| 81 void markAllClientsForInvalidation(InvalidationMode); | |
| 82 void markAllClientLayersForInvalidation(); | |
| 83 void markClientForInvalidation(LayoutObject*, InvalidationMode); | |
| 84 | |
| 85 void clearInvalidationMask() { m_invalidationMask = 0; } | |
| 86 | |
| 87 bool m_isInLayout; | |
| 88 | |
| 89 private: | |
| 90 friend class SVGResourcesCache; | |
| 91 void addClient(LayoutObject*); | |
| 92 void removeClient(LayoutObject*); | |
| 93 | |
| 94 virtual void willBeDestroyed() override final; | |
| 95 void registerResource(); | |
| 96 | |
| 97 AtomicString m_id; | |
| 98 // Track global (markAllClientsForInvalidation) invals to avoid redundant cr
awls. | |
| 99 unsigned m_invalidationMask : 8; | |
| 100 | |
| 101 unsigned m_registered : 1; | |
| 102 unsigned m_isInvalidating : 1; | |
| 103 // 22 padding bits available | |
| 104 | |
| 105 HashSet<LayoutObject*> m_clients; | |
| 106 HashSet<Layer*> m_clientLayers; | |
| 107 }; | |
| 108 | |
| 109 inline RenderSVGResourceContainer* getRenderSVGResourceContainerById(TreeScope&
treeScope, const AtomicString& id) | |
| 110 { | |
| 111 if (id.isEmpty()) | |
| 112 return 0; | |
| 113 | |
| 114 if (RenderSVGResourceContainer* renderResource = treeScope.document().access
SVGExtensions().resourceById(id)) | |
| 115 return renderResource; | |
| 116 | |
| 117 return 0; | |
| 118 } | |
| 119 | |
| 120 template<typename Renderer> | |
| 121 Renderer* getRenderSVGResourceById(TreeScope& treeScope, const AtomicString& id) | |
| 122 { | |
| 123 if (RenderSVGResourceContainer* container = getRenderSVGResourceContainerByI
d(treeScope, id)) { | |
| 124 if (container->resourceType() == Renderer::s_resourceType) | |
| 125 return static_cast<Renderer*>(container); | |
| 126 } | |
| 127 return 0; | |
| 128 } | |
| 129 | |
| 130 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(RenderSVGResourceContainer, isSVGResourceContain
er()); | |
| 131 | |
| 132 #define DEFINE_RENDER_SVG_RESOURCE_TYPE_CASTS(thisType, typeName) \ | |
| 133 DEFINE_TYPE_CASTS(thisType, RenderSVGResourceContainer, resource, resource->
resourceType() == typeName, resource.resourceType() == typeName) | |
| 134 | |
| 135 } | |
| 136 | |
| 137 #endif | |
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