| /* |
| * Copyright (C) 2003, 2006, 2007, 2008 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 SKY_ENGINE_CORE_RENDERING_ROOTINLINEBOX_H_ |
| #define SKY_ENGINE_CORE_RENDERING_ROOTINLINEBOX_H_ |
| |
| #include "sky/engine/core/rendering/InlineFlowBox.h" |
| #include "sky/engine/platform/text/BidiContext.h" |
| |
| namespace blink { |
| |
| class EllipsisBox; |
| class HitTestResult; |
| class RenderParagraph; |
| |
| struct BidiStatus; |
| struct GapRects; |
| |
| class RootInlineBox : public InlineFlowBox { |
| public: |
| explicit RootInlineBox(RenderParagraph&); |
| |
| virtual void destroy() override final; |
| |
| virtual bool isRootInlineBox() const override final { return true; } |
| |
| void detachEllipsisBox(); |
| |
| RootInlineBox* nextRootBox() const { return static_cast<RootInlineBox*>(m_nextLineBox); } |
| RootInlineBox* prevRootBox() const { return static_cast<RootInlineBox*>(m_prevLineBox); } |
| |
| virtual void adjustPosition(float dx, float dy) override final; |
| |
| LayoutUnit lineTop() const { return m_lineTop; } |
| LayoutUnit lineBottom() const { return m_lineBottom; } |
| |
| LayoutUnit lineTopWithLeading() const { return m_lineTopWithLeading; } |
| LayoutUnit lineBottomWithLeading() const { return m_lineBottomWithLeading; } |
| |
| LayoutUnit selectionTop() const; |
| LayoutUnit selectionBottom() const; |
| LayoutUnit selectionHeight() const { return max<LayoutUnit>(0, selectionBottom() - selectionTop()); } |
| |
| LayoutUnit selectionTopAdjustedForPrecedingBlock() const; |
| LayoutUnit selectionHeightAdjustedForPrecedingBlock() const { return max<LayoutUnit>(0, selectionBottom() - selectionTopAdjustedForPrecedingBlock()); } |
| |
| int blockDirectionPointInLine() const; |
| |
| LayoutUnit alignBoxesInBlockDirection(LayoutUnit heightOfBlock, GlyphOverflowAndFallbackFontsMap&, VerticalPositionCache&); |
| void setLineTopBottomPositions(LayoutUnit top, LayoutUnit bottom, LayoutUnit topWithLeading, LayoutUnit bottomWithLeading, LayoutUnit selectionBottom = LayoutUnit::min()) |
| { |
| m_lineTop = top; |
| m_lineBottom = bottom; |
| m_lineTopWithLeading = topWithLeading; |
| m_lineBottomWithLeading = bottomWithLeading; |
| m_selectionBottom = selectionBottom == LayoutUnit::min() ? bottom : selectionBottom; |
| } |
| |
| virtual RenderLineBoxList* rendererLineBoxes() const override final; |
| |
| RenderObject* lineBreakObj() const { return m_lineBreakObj; } |
| BidiStatus lineBreakBidiStatus() const; |
| void setLineBreakInfo(RenderObject*, unsigned breakPos, const BidiStatus&); |
| |
| unsigned lineBreakPos() const { return m_lineBreakPos; } |
| void setLineBreakPos(unsigned p) { m_lineBreakPos = p; } |
| |
| using InlineBox::endsWithBreak; |
| using InlineBox::setEndsWithBreak; |
| |
| void childRemoved(InlineBox* box); |
| |
| bool lineCanAccommodateEllipsis(bool ltr, int blockEdge, int lineBoxEdge, int ellipsisWidth); |
| // Return the truncatedWidth, the width of the truncated text + ellipsis. |
| float placeEllipsis(const AtomicString& ellipsisStr, bool ltr, float blockLeftEdge, float blockRightEdge, float ellipsisWidth, InlineBox* markupBox = 0); |
| // Return the position of the EllipsisBox or -1. |
| virtual float placeEllipsisBox(bool ltr, float blockLeftEdge, float blockRightEdge, float ellipsisWidth, float &truncatedWidth, bool& foundBox) override final; |
| |
| using InlineBox::hasEllipsisBox; |
| EllipsisBox* ellipsisBox() const; |
| |
| void paintEllipsisBox(PaintInfo&, const LayoutPoint&, LayoutUnit lineTop, LayoutUnit lineBottom, Vector<RenderBox*>& layers) const; |
| |
| virtual void clearTruncation() override final; |
| |
| virtual int baselinePosition(FontBaseline baselineType) const override final; |
| virtual LayoutUnit lineHeight() const override final; |
| |
| virtual void paint(PaintInfo&, const LayoutPoint&, LayoutUnit lineTop, LayoutUnit lineBottom, Vector<RenderBox*>& layers) override; |
| virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, LayoutUnit lineTop, LayoutUnit lineBottom) override final; |
| |
| using InlineBox::hasSelectedChildren; |
| using InlineBox::setHasSelectedChildren; |
| |
| virtual RenderObject::SelectionState selectionState() override final; |
| InlineBox* firstSelectedBox(); |
| InlineBox* lastSelectedBox(); |
| |
| GapRects lineSelectionGap(RenderBlock* rootBlock, const LayoutPoint& rootBlockPhysicalPosition, const LayoutSize& offsetFromRootBlock, LayoutUnit selTop, LayoutUnit selHeight, const PaintInfo*); |
| |
| RenderParagraph& block() const; |
| |
| InlineBox* closestLeafChildForPoint(const IntPoint&, bool onlyEditableLeaves); |
| InlineBox* closestLeafChildForLogicalLeftPosition(int, bool onlyEditableLeaves = false); |
| |
| virtual void extractLineBoxFromRenderObject() override final; |
| virtual void attachLineBoxToRenderObject() override final; |
| virtual void removeLineBoxFromRenderObject() override final; |
| |
| FontBaseline baselineType() const { return static_cast<FontBaseline>(m_baselineType); } |
| |
| bool hasAnnotationsBefore() const { return m_hasAnnotationsBefore; } |
| bool hasAnnotationsAfter() const { return m_hasAnnotationsAfter; } |
| |
| LayoutRect paddedLayoutOverflowRect(LayoutUnit endPadding) const; |
| |
| void ascentAndDescentForBox(InlineBox*, GlyphOverflowAndFallbackFontsMap&, int& ascent, int& descent, bool& affectsAscent, bool& affectsDescent) const; |
| LayoutUnit verticalPositionForBox(InlineBox*, VerticalPositionCache&); |
| bool includeLeadingForBox(InlineBox*) const; |
| bool includeFontForBox(InlineBox*) const; |
| bool includeGlyphsForBox(InlineBox*) const; |
| bool includeMarginForBox(InlineBox*) const; |
| bool fitsToGlyphs() const; |
| bool includesRootLineBoxFontOrLeading() const; |
| |
| LayoutUnit logicalTopVisualOverflow() const |
| { |
| return InlineFlowBox::logicalTopVisualOverflow(lineTop()); |
| } |
| LayoutUnit logicalBottomVisualOverflow() const |
| { |
| return InlineFlowBox::logicalBottomVisualOverflow(lineBottom()); |
| } |
| LayoutUnit logicalTopLayoutOverflow() const |
| { |
| return InlineFlowBox::logicalTopLayoutOverflow(lineTop()); |
| } |
| LayoutUnit logicalBottomLayoutOverflow() const |
| { |
| return InlineFlowBox::logicalBottomLayoutOverflow(lineBottom()); |
| } |
| |
| // Used to calculate the underline offset for TextUnderlinePositionUnder. |
| float maxLogicalTop() const; |
| |
| Node* getLogicalStartBoxWithNode(InlineBox*&) const; |
| Node* getLogicalEndBoxWithNode(InlineBox*&) const; |
| |
| #ifndef NDEBUG |
| virtual const char* boxName() const override; |
| #endif |
| private: |
| LayoutUnit beforeAnnotationsAdjustment() const; |
| |
| // This folds into the padding at the end of InlineFlowBox on 64-bit. |
| unsigned m_lineBreakPos; |
| |
| // Where this line ended. The exact object and the position within that object are stored so that |
| // we can create an InlineIterator beginning just after the end of this line. |
| RenderObject* m_lineBreakObj; |
| RefPtr<BidiContext> m_lineBreakContext; |
| |
| LayoutUnit m_lineTop; |
| LayoutUnit m_lineBottom; |
| LayoutUnit m_lineTopWithLeading; |
| LayoutUnit m_lineBottomWithLeading; |
| LayoutUnit m_selectionBottom; |
| }; |
| |
| } // namespace blink |
| |
| #endif // SKY_ENGINE_CORE_RENDERING_ROOTINLINEBOX_H_ |