| /* |
| * 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/SVGFilterElement.h" |
| #include "core/svg/graphics/filters/SVGFilterBuilder.h" |
| #include "platform/graphics/filters/Filter.h" |
| |
| namespace blink { |
| |
| class FilterData final : public NoBaseWillBeGarbageCollectedFinalized<FilterData> { |
| WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED(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 PassOwnPtrWillBeRawPtr<FilterData> create() |
| { |
| return adoptPtrWillBeNoop(new FilterData()); |
| } |
| |
| void dispose(); |
| |
| DECLARE_TRACE(); |
| |
| RefPtrWillBeMember<Filter> filter; |
| RefPtrWillBeMember<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 { return toSVGFilterElement(element())->filterUnits()->currentValue()->enumValue(); } |
| SVGUnitTypes::SVGUnitType primitiveUnits() const { return toSVGFilterElement(element())->primitiveUnits()->currentValue()->enumValue(); } |
| |
| 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, PassOwnPtrWillBeRawPtr<FilterData> filterData) { m_filter.set(object, filterData); } |
| |
| protected: |
| void willBeDestroyed() override; |
| |
| private: |
| void disposeFilterMap(); |
| |
| using FilterMap = WillBePersistentHeapHashMap<LayoutObject*, OwnPtrWillBeMember<FilterData>>; |
| FilterMap m_filter; |
| }; |
| |
| DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutSVGResourceFilter, isSVGResourceFilter()); |
| |
| } |
| |
| #endif |