| /* |
| * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org> |
| * Copyright (C) 2004, 2005, 2007 Rob Buis <buis@kde.org> |
| * Copyright (C) 2009 Google, Inc. All rights reserved. |
| * Copyright (C) 2009 Apple Inc. 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 LayoutSVGContainer_h |
| #define LayoutSVGContainer_h |
| |
| #include "core/layout/svg/LayoutSVGModelObject.h" |
| |
| namespace blink { |
| |
| class SVGElement; |
| enum class SVGTransformChange; |
| |
| class LayoutSVGContainer : public LayoutSVGModelObject { |
| public: |
| explicit LayoutSVGContainer(SVGElement*); |
| ~LayoutSVGContainer() override; |
| |
| // If you have a LayoutSVGContainer, use firstChild or lastChild instead. |
| void slowFirstChild() const = delete; |
| void slowLastChild() const = delete; |
| |
| LayoutObject* firstChild() const { |
| ASSERT(children() == virtualChildren()); |
| return children()->firstChild(); |
| } |
| LayoutObject* lastChild() const { |
| ASSERT(children() == virtualChildren()); |
| return children()->lastChild(); |
| } |
| |
| void paint(const PaintInfo&, const LayoutPoint&) const override; |
| void styleDidChange(StyleDifference, const ComputedStyle* oldStyle) override; |
| void setNeedsBoundariesUpdate() final { m_needsBoundariesUpdate = true; } |
| bool didScreenScaleFactorChange() const { |
| return m_didScreenScaleFactorChange; |
| } |
| bool isObjectBoundingBoxValid() const { return m_objectBoundingBoxValid; } |
| |
| bool selfWillPaint() const; |
| |
| bool hasNonIsolatedBlendingDescendants() const final; |
| |
| const char* name() const override { return "LayoutSVGContainer"; } |
| |
| FloatRect objectBoundingBox() const final { return m_objectBoundingBox; } |
| |
| protected: |
| LayoutObjectChildList* virtualChildren() final { return children(); } |
| const LayoutObjectChildList* virtualChildren() const final { |
| return children(); |
| } |
| |
| bool isOfType(LayoutObjectType type) const override { |
| return type == LayoutObjectSVGContainer || |
| LayoutSVGModelObject::isOfType(type); |
| } |
| void layout() override; |
| |
| void addChild(LayoutObject* child, LayoutObject* beforeChild = nullptr) final; |
| void removeChild(LayoutObject*) final; |
| void addOutlineRects(Vector<LayoutRect>&, |
| const LayoutPoint& additionalOffset, |
| IncludeBlockVisualOverflowOrNot) const final; |
| |
| FloatRect strokeBoundingBox() const final { return m_strokeBoundingBox; } |
| |
| bool nodeAtFloatPoint(HitTestResult&, |
| const FloatPoint& pointInParent, |
| HitTestAction) override; |
| |
| // Allow LayoutSVGTransformableContainer to hook in at the right time in |
| // layout(). |
| virtual SVGTransformChange calculateLocalTransform(); |
| |
| // Allow LayoutSVGViewportContainer to hook in at the right times in layout() |
| // and nodeAtFloatPoint(). |
| virtual void calcViewport() {} |
| virtual bool pointIsInsideViewportClip(const FloatPoint& /*pointInParent*/) { |
| return true; |
| } |
| |
| virtual void determineIfLayoutSizeChanged() {} |
| |
| void updateCachedBoundaries(); |
| |
| void descendantIsolationRequirementsChanged(DescendantIsolationState) final; |
| |
| private: |
| const LayoutObjectChildList* children() const { return &m_children; } |
| LayoutObjectChildList* children() { return &m_children; } |
| |
| LayoutObjectChildList m_children; |
| FloatRect m_objectBoundingBox; |
| FloatRect m_strokeBoundingBox; |
| bool m_objectBoundingBoxValid; |
| bool m_needsBoundariesUpdate : 1; |
| bool m_didScreenScaleFactorChange : 1; |
| mutable bool m_hasNonIsolatedBlendingDescendants : 1; |
| mutable bool m_hasNonIsolatedBlendingDescendantsDirty : 1; |
| }; |
| |
| DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutSVGContainer, isSVGContainer()); |
| |
| } // namespace blink |
| |
| #endif // LayoutSVGContainer_h |