| /* |
| * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org> |
| * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org> |
| * Copyright (C) 2005 Eric Seidel <eric@webkit.org> |
| * Copyright (C) 2009 Dirk Schulze <krit@webkit.org> |
| * Copyright (C) Research In Motion Limited 2010. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #ifndef LayoutSVGResourceFilter_h |
| #define LayoutSVGResourceFilter_h |
| |
| #include "core/layout/svg/LayoutSVGResourceContainer.h" |
| #include "core/svg/SVGUnitTypes.h" |
| |
| namespace blink { |
| |
| class FilterEffect; |
| class SVGFilterElement; |
| class SVGFilterGraphNodeMap; |
| |
| class FilterData final : public GarbageCollected<FilterData> { |
| public: |
| /* |
| * The state transitions should follow the following: |
| * Initial->RecordingContent->ReadyToPaint->PaintingFilter->ReadyToPaint |
| * | ^ | ^ |
| * v | v | |
| * RecordingContentCycleDetected PaintingFilterCycle |
| */ |
| enum FilterDataState { |
| Initial, |
| RecordingContent, |
| RecordingContentCycleDetected, |
| ReadyToPaint, |
| PaintingFilter, |
| PaintingFilterCycleDetected |
| }; |
| |
| static FilterData* create() { return new FilterData(); } |
| |
| void dispose(); |
| |
| DECLARE_TRACE(); |
| |
| Member<FilterEffect> lastEffect; |
| Member<SVGFilterGraphNodeMap> nodeMap; |
| FilterDataState m_state; |
| |
| private: |
| FilterData() : m_state(Initial) {} |
| }; |
| |
| class LayoutSVGResourceFilter final : public LayoutSVGResourceContainer { |
| public: |
| explicit LayoutSVGResourceFilter(SVGFilterElement*); |
| ~LayoutSVGResourceFilter() override; |
| |
| bool isChildAllowed(LayoutObject*, const ComputedStyle&) const override; |
| |
| const char* name() const override { return "LayoutSVGResourceFilter"; } |
| bool isOfType(LayoutObjectType type) const override { |
| return type == LayoutObjectSVGResourceFilter || |
| LayoutSVGResourceContainer::isOfType(type); |
| } |
| |
| void removeAllClientsFromCache(bool markForInvalidation = true) override; |
| void removeClientFromCache(LayoutObject*, |
| bool markForInvalidation = true) override; |
| |
| FloatRect resourceBoundingBox(const LayoutObject*); |
| |
| SVGUnitTypes::SVGUnitType filterUnits() const; |
| SVGUnitTypes::SVGUnitType primitiveUnits() const; |
| |
| void primitiveAttributeChanged(LayoutObject*, const QualifiedName&); |
| |
| static const LayoutSVGResourceType s_resourceType = FilterResourceType; |
| LayoutSVGResourceType resourceType() const override { return s_resourceType; } |
| |
| FilterData* getFilterDataForLayoutObject(const LayoutObject* object) { |
| return m_filter.get(const_cast<LayoutObject*>(object)); |
| } |
| void setFilterDataForLayoutObject(LayoutObject* object, |
| FilterData* filterData) { |
| m_filter.set(object, filterData); |
| } |
| |
| protected: |
| void willBeDestroyed() override; |
| |
| private: |
| void disposeFilterMap(); |
| |
| using FilterMap = PersistentHeapHashMap<LayoutObject*, Member<FilterData>>; |
| FilterMap m_filter; |
| }; |
| |
| DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutSVGResourceFilter, isSVGResourceFilter()); |
| |
| } // namespace blink |
| |
| #endif |