1 /* 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) 3 * (C) 1999 Antti Koivisto (koivisto@kde.org) 4 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Library General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Library General Public License for more details. 15 * 16 * You should have received a copy of the GNU Library General Public License 17 * along with this library; see the file COPYING.LIB. If not, write to 18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 * Boston, MA 02110-1301, USA. 20 * 21 */ 22 23 #ifndef RenderInline_h 24 #define RenderInline_h 25 26 #include "core/editing/PositionWithAffinity.h" 27 #include "core/rendering/InlineFlowBox.h" 28 #include "core/rendering/RenderBoxModelObject.h" 29 #include "core/rendering/RenderLineBoxList.h" 30 31 namespace blink { 32 33 class RenderInline : public RenderBoxModelObject { 34 public: 35 explicit RenderInline(Element*); 36 virtual void trace(Visitor*) OVERRIDE; 37 38 static RenderInline* createAnonymous(Document*); 39 firstChild()40 RenderObject* firstChild() const { ASSERT(children() == virtualChildren()); return children()->firstChild(); } lastChild()41 RenderObject* lastChild() const { ASSERT(children() == virtualChildren()); return children()->lastChild(); } 42 43 // If you have a RenderInline, use firstChild or lastChild instead. 44 void slowFirstChild() const WTF_DELETED_FUNCTION; 45 void slowLastChild() const WTF_DELETED_FUNCTION; 46 47 virtual void addChild(RenderObject* newChild, RenderObject* beforeChild = 0) OVERRIDE; 48 node()49 Element* node() const { return toElement(RenderBoxModelObject::node()); } 50 51 virtual LayoutUnit marginLeft() const OVERRIDE FINAL; 52 virtual LayoutUnit marginRight() const OVERRIDE FINAL; 53 virtual LayoutUnit marginTop() const OVERRIDE FINAL; 54 virtual LayoutUnit marginBottom() const OVERRIDE FINAL; 55 virtual LayoutUnit marginBefore(const RenderStyle* otherStyle = 0) const OVERRIDE FINAL; 56 virtual LayoutUnit marginAfter(const RenderStyle* otherStyle = 0) const OVERRIDE FINAL; 57 virtual LayoutUnit marginStart(const RenderStyle* otherStyle = 0) const OVERRIDE FINAL; 58 virtual LayoutUnit marginEnd(const RenderStyle* otherStyle = 0) const OVERRIDE FINAL; 59 60 virtual void absoluteRects(Vector<IntRect>&, const LayoutPoint& accumulatedOffset) const OVERRIDE FINAL; 61 virtual void absoluteQuads(Vector<FloatQuad>&, bool* wasFixed) const OVERRIDE; 62 63 virtual LayoutSize offsetFromContainer(const RenderObject*, const LayoutPoint&, bool* offsetDependsOnPoint = 0) const OVERRIDE FINAL; 64 65 IntRect linesBoundingBox() const; 66 LayoutRect linesVisualOverflowBoundingBox() const; 67 68 InlineFlowBox* createAndAppendInlineFlowBox(); 69 70 void dirtyLineBoxes(bool fullLayout); 71 void deleteLineBoxTree(); 72 lineBoxes()73 RenderLineBoxList* lineBoxes() { return &m_lineBoxes; } lineBoxes()74 const RenderLineBoxList* lineBoxes() const { return &m_lineBoxes; } 75 firstLineBox()76 InlineFlowBox* firstLineBox() const { return m_lineBoxes.firstLineBox(); } lastLineBox()77 InlineFlowBox* lastLineBox() const { return m_lineBoxes.lastLineBox(); } firstLineBoxIncludingCulling()78 InlineBox* firstLineBoxIncludingCulling() const { return alwaysCreateLineBoxes() ? firstLineBox() : culledInlineFirstLineBox(); } lastLineBoxIncludingCulling()79 InlineBox* lastLineBoxIncludingCulling() const { return alwaysCreateLineBoxes() ? lastLineBox() : culledInlineLastLineBox(); } 80 virtualContinuation()81 virtual RenderBoxModelObject* virtualContinuation() const OVERRIDE FINAL { return continuation(); } 82 RenderInline* inlineElementContinuation() const; 83 84 virtual void updateDragState(bool dragOn) OVERRIDE FINAL; 85 86 LayoutSize offsetForInFlowPositionedInline(const RenderBox& child) const; 87 88 virtual void addFocusRingRects(Vector<LayoutRect>&, const LayoutPoint& additionalOffset, const RenderLayerModelObject* paintContainer) const OVERRIDE FINAL; 89 90 using RenderBoxModelObject::continuation; 91 using RenderBoxModelObject::setContinuation; 92 alwaysCreateLineBoxes()93 bool alwaysCreateLineBoxes() const { return alwaysCreateLineBoxesForRenderInline(); } 94 void setAlwaysCreateLineBoxes(bool alwaysCreateLineBoxes = true) { setAlwaysCreateLineBoxesForRenderInline(alwaysCreateLineBoxes); } 95 void updateAlwaysCreateLineBoxes(bool fullLayout); 96 97 virtual LayoutRect localCaretRect(InlineBox*, int, LayoutUnit* extraWidthToEndOfLine) OVERRIDE FINAL; 98 99 bool hitTestCulledInline(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset); 100 101 protected: 102 virtual void willBeDestroyed() OVERRIDE; 103 104 virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) OVERRIDE; 105 106 virtual void computeSelfHitTestRects(Vector<LayoutRect>& rects, const LayoutPoint& layerOffset) const OVERRIDE; 107 108 private: virtualChildren()109 virtual RenderObjectChildList* virtualChildren() OVERRIDE FINAL { return children(); } virtualChildren()110 virtual const RenderObjectChildList* virtualChildren() const OVERRIDE FINAL { return children(); } children()111 const RenderObjectChildList* children() const { return &m_children; } children()112 RenderObjectChildList* children() { return &m_children; } 113 114 virtual const char* renderName() const OVERRIDE; 115 isRenderInline()116 virtual bool isRenderInline() const OVERRIDE FINAL { return true; } 117 118 LayoutRect culledInlineVisualOverflowBoundingBox() const; 119 InlineBox* culledInlineFirstLineBox() const; 120 InlineBox* culledInlineLastLineBox() const; 121 122 template<typename GeneratorContext> 123 void generateLineBoxRects(GeneratorContext& yield) const; 124 template<typename GeneratorContext> 125 void generateCulledLineBoxRects(GeneratorContext& yield, const RenderInline* container) const; 126 127 void addChildToContinuation(RenderObject* newChild, RenderObject* beforeChild); 128 virtual void addChildIgnoringContinuation(RenderObject* newChild, RenderObject* beforeChild = 0) OVERRIDE FINAL; 129 130 void splitInlines(RenderBlock* fromBlock, RenderBlock* toBlock, RenderBlock* middleBlock, 131 RenderObject* beforeChild, RenderBoxModelObject* oldCont); 132 void splitFlow(RenderObject* beforeChild, RenderBlock* newBlockBox, 133 RenderObject* newChild, RenderBoxModelObject* oldCont); 134 layout()135 virtual void layout() OVERRIDE FINAL { ASSERT_NOT_REACHED(); } // Do nothing for layout() 136 137 virtual void paint(PaintInfo&, const LayoutPoint&) OVERRIDE FINAL; 138 139 virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) OVERRIDE FINAL; 140 layerTypeRequired()141 virtual LayerType layerTypeRequired() const OVERRIDE { return isRelPositioned() || createsGroup() || hasClipPath() || style()->shouldCompositeForCurrentAnimations() ? NormalLayer : NoLayer; } 142 143 virtual LayoutUnit offsetLeft() const OVERRIDE FINAL; 144 virtual LayoutUnit offsetTop() const OVERRIDE FINAL; offsetWidth()145 virtual LayoutUnit offsetWidth() const OVERRIDE FINAL { return linesBoundingBox().width(); } offsetHeight()146 virtual LayoutUnit offsetHeight() const OVERRIDE FINAL { return linesBoundingBox().height(); } 147 148 virtual LayoutRect clippedOverflowRectForPaintInvalidation(const RenderLayerModelObject* paintInvalidationContainer, const PaintInvalidationState* = 0) const OVERRIDE; 149 virtual LayoutRect rectWithOutlineForPaintInvalidation(const RenderLayerModelObject* paintInvalidationContainer, LayoutUnit outlineWidth, const PaintInvalidationState* = 0) const OVERRIDE FINAL; 150 virtual void mapRectToPaintInvalidationBacking(const RenderLayerModelObject* paintInvalidationContainer, LayoutRect&, const PaintInvalidationState*) const OVERRIDE FINAL; 151 152 virtual void mapLocalToContainer(const RenderLayerModelObject* paintInvalidationContainer, TransformState&, MapCoordinatesFlags = ApplyContainerFlip, bool* wasFixed = 0, const PaintInvalidationState* = 0) const OVERRIDE; 153 154 virtual PositionWithAffinity positionForPoint(const LayoutPoint&) OVERRIDE FINAL; 155 borderBoundingBox()156 virtual IntRect borderBoundingBox() const OVERRIDE FINAL 157 { 158 IntRect boundingBox = linesBoundingBox(); 159 return IntRect(0, 0, boundingBox.width(), boundingBox.height()); 160 } 161 162 virtual InlineFlowBox* createInlineFlowBox(); // Subclassed by SVG and Ruby 163 dirtyLinesFromChangedChild(RenderObject * child)164 virtual void dirtyLinesFromChangedChild(RenderObject* child) OVERRIDE FINAL { m_lineBoxes.dirtyLinesFromChangedChild(this, child); } 165 166 virtual LayoutUnit lineHeight(bool firstLine, LineDirectionMode, LinePositionMode = PositionOnContainingLine) const OVERRIDE FINAL; 167 virtual int baselinePosition(FontBaseline, bool firstLine, LineDirectionMode, LinePositionMode = PositionOnContainingLine) const OVERRIDE FINAL; 168 169 virtual void childBecameNonInline(RenderObject* child) OVERRIDE FINAL; 170 171 virtual void updateHitTestResult(HitTestResult&, const LayoutPoint&) OVERRIDE FINAL; 172 173 virtual void imageChanged(WrappedImagePtr, const IntRect* = 0) OVERRIDE FINAL; 174 175 virtual void addAnnotatedRegions(Vector<AnnotatedRegionValue>&) OVERRIDE FINAL; 176 177 virtual void updateFromStyle() OVERRIDE FINAL; 178 179 RenderInline* clone() const; 180 181 RenderBoxModelObject* continuationBefore(RenderObject* beforeChild); 182 183 RenderObjectChildList m_children; 184 RenderLineBoxList m_lineBoxes; // All of the line boxes created for this inline flow. For example, <i>Hello<br>world.</i> will have two <i> line boxes. 185 }; 186 187 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderInline, isRenderInline()); 188 189 } // namespace blink 190 191 #endif // RenderInline_h 192