| /* |
| * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
| * (C) 1999 Antti Koivisto (koivisto@kde.org) |
| * (C) 2007 David Smith (catfish.man@gmail.com) |
| * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 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. |
| */ |
| |
| #pragma once |
| |
| #include "GapRects.h" |
| #include "LineWidth.h" |
| #include "RenderBox.h" |
| #include "TextRun.h" |
| #include <memory> |
| #include <wtf/ListHashSet.h> |
| |
| namespace WebCore { |
| |
| class LineLayoutState; |
| class LogicalSelectionOffsetCaches; |
| class RenderInline; |
| class RenderText; |
| |
| struct BidiRun; |
| struct PaintInfo; |
| |
| typedef WTF::ListHashSet<RenderBox*> TrackedRendererListHashSet; |
| |
| enum CaretType { CursorCaret, DragCaret }; |
| enum ContainingBlockState { NewContainingBlock, SameContainingBlock }; |
| |
| enum TextRunFlag { |
| DefaultTextRunFlags = 0, |
| RespectDirection = 1 << 0, |
| RespectDirectionOverride = 1 << 1 |
| }; |
| |
| typedef unsigned TextRunFlags; |
| |
| class RenderBlock : public RenderBox { |
| WTF_MAKE_ISO_ALLOCATED(RenderBlock); |
| public: |
| friend class LineLayoutState; |
| virtual ~RenderBlock(); |
| |
| protected: |
| RenderBlock(Element&, RenderStyle&&, BaseTypeFlags); |
| RenderBlock(Document&, RenderStyle&&, BaseTypeFlags); |
| |
| public: |
| // These two functions are overridden for inline-block. |
| LayoutUnit lineHeight(bool firstLine, LineDirectionMode, LinePositionMode = PositionOnContainingLine) const final; |
| int baselinePosition(FontBaseline, bool firstLine, LineDirectionMode, LinePositionMode = PositionOnContainingLine) const override; |
| |
| LayoutUnit minLineHeightForReplacedRenderer(bool isFirstLine, LayoutUnit replacedHeight) const; |
| |
| // FIXME-BLOCKFLOW: Remove virtualizaion when all callers have moved to RenderBlockFlow |
| virtual void deleteLines(); |
| |
| virtual void layoutBlock(bool relayoutChildren, LayoutUnit pageLogicalHeight = 0_lu); |
| |
| virtual void invalidateLineLayoutPath() { } |
| |
| void insertPositionedObject(RenderBox&); |
| static void removePositionedObject(const RenderBox&); |
| void removePositionedObjects(const RenderBlock*, ContainingBlockState = SameContainingBlock); |
| |
| TrackedRendererListHashSet* positionedObjects() const; |
| bool hasPositionedObjects() const |
| { |
| TrackedRendererListHashSet* objects = positionedObjects(); |
| return objects && !objects->isEmpty(); |
| } |
| |
| void addPercentHeightDescendant(RenderBox&); |
| static void removePercentHeightDescendant(RenderBox&); |
| TrackedRendererListHashSet* percentHeightDescendants() const; |
| bool hasPercentHeightDescendants() const |
| { |
| TrackedRendererListHashSet* objects = percentHeightDescendants(); |
| return objects && !objects->isEmpty(); |
| } |
| static bool hasPercentHeightContainerMap(); |
| static bool hasPercentHeightDescendant(RenderBox&); |
| static void clearPercentHeightDescendantsFrom(RenderBox&); |
| static void removePercentHeightDescendantIfNeeded(RenderBox&); |
| |
| bool isContainingBlockAncestorFor(RenderObject&) const; |
| |
| void setHasMarginBeforeQuirk(bool b) { setRenderBlockHasMarginBeforeQuirk(b); } |
| void setHasMarginAfterQuirk(bool b) { setRenderBlockHasMarginAfterQuirk(b); } |
| void setShouldForceRelayoutChildren(bool b) { setRenderBlockShouldForceRelayoutChildren(b); } |
| |
| bool hasMarginBeforeQuirk() const { return renderBlockHasMarginBeforeQuirk(); } |
| bool hasMarginAfterQuirk() const { return renderBlockHasMarginAfterQuirk(); } |
| bool hasBorderOrPaddingLogicalWidthChanged() const { return renderBlockShouldForceRelayoutChildren(); } |
| |
| bool hasMarginBeforeQuirk(const RenderBox& child) const; |
| bool hasMarginAfterQuirk(const RenderBox& child) const; |
| |
| void markPositionedObjectsForLayout(); |
| void markForPaginationRelayoutIfNeeded() override; |
| |
| // FIXME-BLOCKFLOW: Remove virtualizaion when all of the line layout code has been moved out of RenderBlock |
| virtual bool containsFloats() const { return false; } |
| |
| // Versions that can compute line offsets with the fragment and page offset passed in. Used for speed to avoid having to |
| // compute the fragment all over again when you already know it. |
| LayoutUnit availableLogicalWidthForLineInFragment(LayoutUnit position, IndentTextOrNot shouldIndentText, RenderFragmentContainer* fragment, LayoutUnit logicalHeight = 0_lu) const |
| { |
| return std::max<LayoutUnit>(0, logicalRightOffsetForLineInFragment(position, shouldIndentText, fragment, logicalHeight) |
| - logicalLeftOffsetForLineInFragment(position, shouldIndentText, fragment, logicalHeight)); |
| } |
| LayoutUnit logicalRightOffsetForLineInFragment(LayoutUnit position, IndentTextOrNot shouldIndentText, RenderFragmentContainer* fragment, LayoutUnit logicalHeight = 0_lu) const |
| { |
| return logicalRightOffsetForLine(position, logicalRightOffsetForContent(fragment), shouldIndentText, logicalHeight); |
| } |
| LayoutUnit logicalLeftOffsetForLineInFragment(LayoutUnit position, IndentTextOrNot shouldIndentText, RenderFragmentContainer* fragment, LayoutUnit logicalHeight = 0_lu) const |
| { |
| return logicalLeftOffsetForLine(position, logicalLeftOffsetForContent(fragment), shouldIndentText, logicalHeight); |
| } |
| LayoutUnit startOffsetForLineInFragment(LayoutUnit position, IndentTextOrNot shouldIndentText, RenderFragmentContainer* fragment, LayoutUnit logicalHeight = 0_lu) const |
| { |
| return style().isLeftToRightDirection() ? logicalLeftOffsetForLineInFragment(position, shouldIndentText, fragment, logicalHeight) |
| : logicalWidth() - logicalRightOffsetForLineInFragment(position, shouldIndentText, fragment, logicalHeight); |
| } |
| LayoutUnit endOffsetForLineInFragment(LayoutUnit position, IndentTextOrNot shouldIndentText, RenderFragmentContainer* fragment, LayoutUnit logicalHeight = 0_lu) const |
| { |
| return !style().isLeftToRightDirection() ? logicalLeftOffsetForLineInFragment(position, shouldIndentText, fragment, logicalHeight) |
| : logicalWidth() - logicalRightOffsetForLineInFragment(position, shouldIndentText, fragment, logicalHeight); |
| } |
| |
| LayoutUnit availableLogicalWidthForLine(LayoutUnit position, IndentTextOrNot shouldIndentText, LayoutUnit logicalHeight = 0_lu) const |
| { |
| return availableLogicalWidthForLineInFragment(position, shouldIndentText, fragmentAtBlockOffset(position), logicalHeight); |
| } |
| LayoutUnit logicalRightOffsetForLine(LayoutUnit position, IndentTextOrNot shouldIndentText, LayoutUnit logicalHeight = 0_lu) const |
| { |
| return logicalRightOffsetForLine(position, logicalRightOffsetForContent(position), shouldIndentText, logicalHeight); |
| } |
| LayoutUnit logicalLeftOffsetForLine(LayoutUnit position, IndentTextOrNot shouldIndentText, LayoutUnit logicalHeight = 0_lu) const |
| { |
| return logicalLeftOffsetForLine(position, logicalLeftOffsetForContent(position), shouldIndentText, logicalHeight); |
| } |
| LayoutUnit startOffsetForLine(LayoutUnit position, IndentTextOrNot shouldIndentText, LayoutUnit logicalHeight = 0_lu) const |
| { |
| return style().isLeftToRightDirection() ? logicalLeftOffsetForLine(position, shouldIndentText, logicalHeight) |
| : logicalWidth() - logicalRightOffsetForLine(position, shouldIndentText, logicalHeight); |
| } |
| LayoutUnit endOffsetForLine(LayoutUnit position, IndentTextOrNot shouldIndentText, LayoutUnit logicalHeight = 0_lu) const |
| { |
| return !style().isLeftToRightDirection() ? logicalLeftOffsetForLine(position, shouldIndentText, logicalHeight) |
| : logicalWidth() - logicalRightOffsetForLine(position, shouldIndentText, logicalHeight); |
| } |
| |
| LayoutUnit textIndentOffset() const; |
| |
| VisiblePosition positionForPoint(const LayoutPoint&, const RenderFragmentContainer*) override; |
| |
| GapRects selectionGapRectsForRepaint(const RenderLayerModelObject* repaintContainer); |
| LayoutRect logicalLeftSelectionGap(RenderBlock& rootBlock, const LayoutPoint& rootBlockPhysicalPosition, const LayoutSize& offsetFromRootBlock, |
| RenderBoxModelObject* selObj, LayoutUnit logicalLeft, LayoutUnit logicalTop, LayoutUnit logicalHeight, const LogicalSelectionOffsetCaches&, const PaintInfo*); |
| LayoutRect logicalRightSelectionGap(RenderBlock& rootBlock, const LayoutPoint& rootBlockPhysicalPosition, const LayoutSize& offsetFromRootBlock, |
| RenderBoxModelObject* selObj, LayoutUnit logicalRight, LayoutUnit logicalTop, LayoutUnit logicalHeight, const LogicalSelectionOffsetCaches&, const PaintInfo*); |
| void getSelectionGapInfo(HighlightState, bool& leftGap, bool& rightGap); |
| bool isSelectionRoot() const; |
| |
| LayoutRect logicalRectToPhysicalRect(const LayoutPoint& physicalPosition, const LayoutRect& logicalRect); |
| |
| void addContinuationWithOutline(RenderInline*); |
| bool paintsContinuationOutline(RenderInline*); |
| |
| static RenderPtr<RenderBlock> createAnonymousWithParentRendererAndDisplay(const RenderBox& parent, DisplayType = DisplayType::Block); |
| RenderPtr<RenderBlock> createAnonymousBlock(DisplayType = DisplayType::Block) const; |
| |
| RenderPtr<RenderBox> createAnonymousBoxWithSameTypeAs(const RenderBox&) const override; |
| |
| static bool shouldSkipCreatingRunsForObject(RenderObject& obj) |
| { |
| return obj.isFloating() || (obj.isOutOfFlowPositioned() && !obj.style().isOriginalDisplayInlineType() && !obj.container()->isRenderInline()); |
| } |
| |
| static TextRun constructTextRun(StringView, const RenderStyle&, |
| ExpansionBehavior = DefaultExpansion, TextRunFlags = DefaultTextRunFlags); |
| static TextRun constructTextRun(const String&, const RenderStyle&, |
| ExpansionBehavior = DefaultExpansion, TextRunFlags = DefaultTextRunFlags); |
| static TextRun constructTextRun(const AtomString&, const RenderStyle&, |
| ExpansionBehavior = DefaultExpansion, TextRunFlags = DefaultTextRunFlags); |
| static TextRun constructTextRun(const RenderText&, const RenderStyle&, |
| ExpansionBehavior = DefaultExpansion); |
| static TextRun constructTextRun(const RenderText&, unsigned offset, unsigned length, const RenderStyle&, |
| ExpansionBehavior = DefaultExpansion); |
| static TextRun constructTextRun(const LChar* characters, unsigned length, const RenderStyle&, |
| ExpansionBehavior = DefaultExpansion); |
| static TextRun constructTextRun(const UChar* characters, unsigned length, const RenderStyle&, |
| ExpansionBehavior = DefaultExpansion); |
| |
| LayoutUnit paginationStrut() const; |
| void setPaginationStrut(LayoutUnit); |
| |
| // The page logical offset is the object's offset from the top of the page in the page progression |
| // direction (so an x-offset in vertical text and a y-offset for horizontal text). |
| LayoutUnit pageLogicalOffset() const; |
| void setPageLogicalOffset(LayoutUnit); |
| |
| // Fieldset legends that are taller than the fieldset border add in intrinsic border |
| // in order to ensure that content gets properly pushed down across all layout systems |
| // (flexbox, block, etc.) |
| LayoutUnit intrinsicBorderForFieldset() const; |
| void setIntrinsicBorderForFieldset(LayoutUnit); |
| LayoutUnit borderTop() const override; |
| LayoutUnit borderBottom() const override; |
| LayoutUnit borderLeft() const override; |
| LayoutUnit borderRight() const override; |
| LayoutUnit borderBefore() const override; |
| LayoutUnit adjustBorderBoxLogicalHeightForBoxSizing(LayoutUnit height) const override; |
| LayoutUnit adjustContentBoxLogicalHeightForBoxSizing(Optional<LayoutUnit> height) const override; |
| void paintExcludedChildrenInBorder(PaintInfo&, const LayoutPoint&); |
| |
| // Accessors for logical width/height and margins in the containing block's block-flow direction. |
| enum ApplyLayoutDeltaMode { ApplyLayoutDelta, DoNotApplyLayoutDelta }; |
| LayoutUnit logicalWidthForChild(const RenderBox& child) const { return isHorizontalWritingMode() ? child.width() : child.height(); } |
| LayoutUnit logicalHeightForChild(const RenderBox& child) const { return isHorizontalWritingMode() ? child.height() : child.width(); } |
| LayoutSize logicalSizeForChild(const RenderBox& child) const { return isHorizontalWritingMode() ? child.size() : child.size().transposedSize(); } |
| LayoutUnit logicalTopForChild(const RenderBox& child) const { return isHorizontalWritingMode() ? child.y() : child.x(); } |
| void setLogicalLeftForChild(RenderBox& child, LayoutUnit logicalLeft, ApplyLayoutDeltaMode = DoNotApplyLayoutDelta); |
| void setLogicalTopForChild(RenderBox& child, LayoutUnit logicalTop, ApplyLayoutDeltaMode = DoNotApplyLayoutDelta); |
| LayoutUnit marginBeforeForChild(const RenderBoxModelObject& child) const { return child.marginBefore(&style()); } |
| LayoutUnit marginAfterForChild(const RenderBoxModelObject& child) const { return child.marginAfter(&style()); } |
| LayoutUnit marginStartForChild(const RenderBoxModelObject& child) const { return child.marginStart(&style()); } |
| LayoutUnit marginEndForChild(const RenderBoxModelObject& child) const { return child.marginEnd(&style()); } |
| void setMarginStartForChild(RenderBox& child, LayoutUnit value) const { child.setMarginStart(value, &style()); } |
| void setMarginEndForChild(RenderBox& child, LayoutUnit value) const { child.setMarginEnd(value, &style()); } |
| void setMarginBeforeForChild(RenderBox& child, LayoutUnit value) const { child.setMarginBefore(value, &style()); } |
| void setMarginAfterForChild(RenderBox& child, LayoutUnit value) const { child.setMarginAfter(value, &style()); } |
| LayoutUnit collapsedMarginBeforeForChild(const RenderBox& child) const; |
| LayoutUnit collapsedMarginAfterForChild(const RenderBox& child) const; |
| |
| void getFirstLetter(RenderObject*& firstLetter, RenderElement*& firstLetterContainer, RenderObject* skipObject = nullptr); |
| |
| virtual void scrollbarsChanged(bool /*horizontalScrollbarChanged*/, bool /*verticalScrollbarChanged*/) { } |
| |
| LayoutUnit logicalLeftOffsetForContent(RenderFragmentContainer*) const; |
| LayoutUnit logicalRightOffsetForContent(RenderFragmentContainer*) const; |
| LayoutUnit availableLogicalWidthForContent(RenderFragmentContainer* fragment) const |
| { |
| return std::max<LayoutUnit>(0, logicalRightOffsetForContent(fragment) - logicalLeftOffsetForContent(fragment)); |
| } |
| LayoutUnit startOffsetForContent(RenderFragmentContainer* fragment) const |
| { |
| return style().isLeftToRightDirection() ? logicalLeftOffsetForContent(fragment) : logicalWidth() - logicalRightOffsetForContent(fragment); |
| } |
| LayoutUnit endOffsetForContent(RenderFragmentContainer* fragment) const |
| { |
| return !style().isLeftToRightDirection() ? logicalLeftOffsetForContent(fragment) : logicalWidth() - logicalRightOffsetForContent(fragment); |
| } |
| LayoutUnit logicalLeftOffsetForContent(LayoutUnit blockOffset) const |
| { |
| return logicalLeftOffsetForContent(fragmentAtBlockOffset(blockOffset)); |
| } |
| LayoutUnit logicalRightOffsetForContent(LayoutUnit blockOffset) const |
| { |
| return logicalRightOffsetForContent(fragmentAtBlockOffset(blockOffset)); |
| } |
| LayoutUnit availableLogicalWidthForContent(LayoutUnit blockOffset) const |
| { |
| return availableLogicalWidthForContent(fragmentAtBlockOffset(blockOffset)); |
| } |
| LayoutUnit startOffsetForContent(LayoutUnit blockOffset) const |
| { |
| return startOffsetForContent(fragmentAtBlockOffset(blockOffset)); |
| } |
| LayoutUnit endOffsetForContent(LayoutUnit blockOffset) const |
| { |
| return endOffsetForContent(fragmentAtBlockOffset(blockOffset)); |
| } |
| LayoutUnit logicalLeftOffsetForContent() const { return isHorizontalWritingMode() ? borderLeft() + paddingLeft() : borderTop() + paddingTop(); } |
| LayoutUnit logicalRightOffsetForContent() const { return logicalLeftOffsetForContent() + availableLogicalWidth(); } |
| LayoutUnit startOffsetForContent() const { return style().isLeftToRightDirection() ? logicalLeftOffsetForContent() : logicalWidth() - logicalRightOffsetForContent(); } |
| LayoutUnit endOffsetForContent() const { return !style().isLeftToRightDirection() ? logicalLeftOffsetForContent() : logicalWidth() - logicalRightOffsetForContent(); } |
| |
| LayoutUnit logicalLeftSelectionOffset(RenderBlock& rootBlock, LayoutUnit position, const LogicalSelectionOffsetCaches&); |
| LayoutUnit logicalRightSelectionOffset(RenderBlock& rootBlock, LayoutUnit position, const LogicalSelectionOffsetCaches&); |
| |
| LayoutUnit computeStartPositionDeltaForChildAvoidingFloats(const RenderBox& child, LayoutUnit childMarginStart, RenderFragmentContainer* = 0); |
| |
| #if ASSERT_ENABLED |
| void checkPositionedObjectsNeedLayout(); |
| #endif |
| |
| void updateHitTestResult(HitTestResult&, const LayoutPoint&) override; |
| |
| bool canHaveChildren() const override { return true; } |
| virtual bool canDropAnonymousBlockChild() const { return true; } |
| |
| RenderFragmentedFlow* cachedEnclosingFragmentedFlow() const; |
| void setCachedEnclosingFragmentedFlowNeedsUpdate(); |
| virtual bool cachedEnclosingFragmentedFlowNeedsUpdate() const; |
| void resetEnclosingFragmentedFlowAndChildInfoIncludingDescendants(RenderFragmentedFlow* = nullptr) final; |
| |
| Optional<LayoutUnit> availableLogicalHeightForPercentageComputation() const; |
| bool hasDefiniteLogicalHeight() const; |
| |
| virtual bool shouldResetChildLogicalHeightBeforeLayout(const RenderBox&) const { return false; } |
| |
| protected: |
| RenderFragmentedFlow* locateEnclosingFragmentedFlow() const override; |
| void willBeDestroyed() override; |
| |
| void layout() override; |
| |
| void layoutPositionedObjects(bool relayoutChildren, bool fixedPositionObjectsOnly = false); |
| virtual void layoutPositionedObject(RenderBox&, bool relayoutChildren, bool fixedPositionObjectsOnly); |
| |
| void markFixedPositionObjectForLayoutIfNeeded(RenderBox& child); |
| |
| LayoutUnit marginIntrinsicLogicalWidthForChild(RenderBox&) const; |
| |
| void paint(PaintInfo&, const LayoutPoint&) override; |
| void paintObject(PaintInfo&, const LayoutPoint&) override; |
| virtual void paintChildren(PaintInfo& forSelf, const LayoutPoint&, PaintInfo& forChild, bool usePrintRect); |
| enum PaintBlockType { PaintAsBlock, PaintAsInlineBlock }; |
| bool paintChild(RenderBox&, PaintInfo& forSelf, const LayoutPoint&, PaintInfo& forChild, bool usePrintRect, PaintBlockType paintType = PaintAsBlock); |
| |
| LayoutUnit logicalRightOffsetForLine(LayoutUnit logicalTop, LayoutUnit fixedOffset, bool applyTextIndent, LayoutUnit logicalHeight = 0_lu) const |
| { |
| return adjustLogicalRightOffsetForLine(logicalRightFloatOffsetForLine(logicalTop, fixedOffset, logicalHeight), applyTextIndent); |
| } |
| LayoutUnit logicalLeftOffsetForLine(LayoutUnit logicalTop, LayoutUnit fixedOffset, bool applyTextIndent, LayoutUnit logicalHeight = 0_lu) const |
| { |
| return adjustLogicalLeftOffsetForLine(logicalLeftFloatOffsetForLine(logicalTop, fixedOffset, logicalHeight), applyTextIndent); |
| } |
| |
| bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) override; |
| |
| void computeIntrinsicLogicalWidths(LayoutUnit& minLogicalWidth, LayoutUnit& maxLogicalWidth) const override; |
| void computePreferredLogicalWidths() override; |
| |
| Optional<int> firstLineBaseline() const override; |
| Optional<int> inlineBlockBaseline(LineDirectionMode) const override; |
| |
| // Delay updating scrollbars until endAndCommitUpdateScrollInfoAfterLayoutTransaction() is called. These functions are used |
| // when a flexbox is laying out its descendants. If multiple calls are made to beginUpdateScrollInfoAfterLayoutTransaction() |
| // then endAndCommitUpdateScrollInfoAfterLayoutTransaction() will do nothing until it is called the same number of times. |
| void beginUpdateScrollInfoAfterLayoutTransaction(); |
| void endAndCommitUpdateScrollInfoAfterLayoutTransaction(); |
| |
| void removeFromUpdateScrollInfoAfterLayoutTransaction(); |
| |
| void updateScrollInfoAfterLayout(); |
| |
| void styleWillChange(StyleDifference, const RenderStyle& newStyle) override; |
| void styleDidChange(StyleDifference, const RenderStyle* oldStyle) override; |
| |
| virtual bool hasLineIfEmpty() const; |
| |
| virtual bool canPerformSimplifiedLayout() const; |
| bool simplifiedLayout(); |
| virtual void simplifiedNormalFlowLayout(); |
| |
| bool childBoxIsUnsplittableForFragmentation(const RenderBox& child) const; |
| |
| public: |
| virtual void computeOverflow(LayoutUnit oldClientAfterEdge, bool recomputeFloats = false); |
| void clearLayoutOverflow(); |
| |
| // Adjust from painting offsets to the local coords of this renderer |
| void offsetForContents(LayoutPoint&) const; |
| // Obtains the nearest enclosing block (including this block) that contributes a first-line style to our inline |
| // children. |
| RenderBlock* firstLineBlock() const override; |
| |
| enum FieldsetFindLegendOption { FieldsetIgnoreFloatingOrOutOfFlow, FieldsetIncludeFloatingOrOutOfFlow }; |
| RenderBox* findFieldsetLegend(FieldsetFindLegendOption = FieldsetIgnoreFloatingOrOutOfFlow) const; |
| virtual void layoutExcludedChildren(bool /*relayoutChildren*/); |
| virtual bool computePreferredWidthsForExcludedChildren(LayoutUnit&, LayoutUnit&) const; |
| |
| void adjustBorderBoxRectForPainting(LayoutRect&) override; |
| LayoutRect paintRectToClipOutFromBorder(const LayoutRect&) override; |
| bool isInlineBlockOrInlineTable() const final { return isInline() && isReplaced(); } |
| |
| void absoluteRects(Vector<IntRect>&, const LayoutPoint& accumulatedOffset) const override; |
| void absoluteQuads(Vector<FloatQuad>&, bool* wasFixed) const override; |
| |
| protected: |
| virtual void addOverflowFromChildren(); |
| // FIXME-BLOCKFLOW: Remove virtualization when all callers have moved to RenderBlockFlow |
| virtual void addOverflowFromInlineChildren() { } |
| void addOverflowFromBlockChildren(); |
| void addOverflowFromPositionedObjects(); |
| void addVisualOverflowFromTheme(); |
| |
| void addFocusRingRects(Vector<LayoutRect>&, const LayoutPoint& additionalOffset, const RenderLayerModelObject* paintContainer = 0) override; |
| virtual void addFocusRingRectsForInlineChildren(Vector<LayoutRect>&, const LayoutPoint& additionalOffset, const RenderLayerModelObject* paintContainer); |
| |
| void computeFragmentRangeForBoxChild(const RenderBox&) const; |
| |
| void estimateFragmentRangeForBoxChild(const RenderBox&) const; |
| bool updateFragmentRangeForBoxChild(const RenderBox&) const; |
| |
| void updateBlockChildDirtyBitsBeforeLayout(bool relayoutChildren, RenderBox&); |
| |
| void preparePaginationBeforeBlockLayout(bool&); |
| |
| void computeChildPreferredLogicalWidths(RenderObject&, LayoutUnit& minPreferredLogicalWidth, LayoutUnit& maxPreferredLogicalWidth) const; |
| |
| void blockWillBeDestroyed(); |
| |
| private: |
| static RenderPtr<RenderBlock> createAnonymousBlockWithStyleAndDisplay(Document&, const RenderStyle&, DisplayType); |
| |
| // FIXME-BLOCKFLOW: Remove virtualizaion when all callers have moved to RenderBlockFlow |
| virtual LayoutUnit logicalRightFloatOffsetForLine(LayoutUnit, LayoutUnit fixedOffset, LayoutUnit) const { return fixedOffset; }; |
| // FIXME-BLOCKFLOW: Remove virtualizaion when all callers have moved to RenderBlockFlow |
| virtual LayoutUnit logicalLeftFloatOffsetForLine(LayoutUnit, LayoutUnit fixedOffset, LayoutUnit) const { return fixedOffset; } |
| LayoutUnit adjustLogicalRightOffsetForLine(LayoutUnit offsetFromFloats, bool applyTextIndent) const; |
| LayoutUnit adjustLogicalLeftOffsetForLine(LayoutUnit offsetFromFloats, bool applyTextIndent) const; |
| |
| const char* renderName() const override; |
| |
| bool isSelfCollapsingBlock() const override; |
| virtual bool childrenPreventSelfCollapsing() const; |
| |
| Node* nodeForHitTest() const; |
| |
| // FIXME-BLOCKFLOW: Remove virtualizaion when all callers have moved to RenderBlockFlow |
| virtual void paintFloats(PaintInfo&, const LayoutPoint&, bool) { } |
| virtual void paintInlineChildren(PaintInfo&, const LayoutPoint&) { } |
| void paintContents(PaintInfo&, const LayoutPoint&); |
| virtual void paintColumnRules(PaintInfo&, const LayoutPoint&) { }; |
| void paintSelection(PaintInfo&, const LayoutPoint&); |
| void paintCaret(PaintInfo&, const LayoutPoint&, CaretType); |
| |
| virtual bool hitTestContents(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction); |
| // FIXME-BLOCKFLOW: Remove virtualization when all callers have moved to RenderBlockFlow |
| virtual bool hitTestFloats(const HitTestRequest&, HitTestResult&, const HitTestLocation&, const LayoutPoint&) { return false; } |
| virtual bool hitTestInlineChildren(const HitTestRequest&, HitTestResult&, const HitTestLocation&, const LayoutPoint&, HitTestAction) { return false; } |
| bool hitTestExcludedChildrenInBorder(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction); |
| |
| virtual bool isPointInOverflowControl(HitTestResult&, const LayoutPoint& locationInContainer, const LayoutPoint& accumulatedOffset); |
| |
| void computeBlockPreferredLogicalWidths(LayoutUnit& minLogicalWidth, LayoutUnit& maxLogicalWidth) const; |
| |
| LayoutRect rectWithOutlineForRepaint(const RenderLayerModelObject* repaintContainer, LayoutUnit outlineWidth) const final; |
| const RenderStyle& outlineStyleForRepaint() const final; |
| |
| void updateDragState(bool dragOn) final; |
| |
| LayoutRect selectionRectForRepaint(const RenderLayerModelObject* repaintContainer, bool /*clipToVisibleContent*/) final |
| { |
| return selectionGapRectsForRepaint(repaintContainer); |
| } |
| bool shouldPaintSelectionGaps() const final; |
| GapRects selectionGaps(RenderBlock& rootBlock, const LayoutPoint& rootBlockPhysicalPosition, const LayoutSize& offsetFromRootBlock, |
| LayoutUnit& lastLogicalTop, LayoutUnit& lastLogicalLeft, LayoutUnit& lastLogicalRight, const LogicalSelectionOffsetCaches&, const PaintInfo* = 0); |
| // FIXME-BLOCKFLOW: Remove virtualizaion when all callers have moved to RenderBlockFlow |
| virtual GapRects inlineSelectionGaps(RenderBlock& rootBlock, const LayoutPoint& rootBlockPhysicalPosition, const LayoutSize& offsetFromRootBlock, |
| LayoutUnit& lastLogicalTop, LayoutUnit& lastLogicalLeft, LayoutUnit& lastLogicalRight, const LogicalSelectionOffsetCaches&, const PaintInfo*); |
| GapRects blockSelectionGaps(RenderBlock& rootBlock, const LayoutPoint& rootBlockPhysicalPosition, const LayoutSize& offsetFromRootBlock, |
| LayoutUnit& lastLogicalTop, LayoutUnit& lastLogicalLeft, LayoutUnit& lastLogicalRight, const LogicalSelectionOffsetCaches&, const PaintInfo*); |
| LayoutRect blockSelectionGap(RenderBlock& rootBlock, const LayoutPoint& rootBlockPhysicalPosition, const LayoutSize& offsetFromRootBlock, |
| LayoutUnit lastLogicalTop, LayoutUnit lastLogicalLeft, LayoutUnit lastLogicalRight, LayoutUnit logicalBottom, const LogicalSelectionOffsetCaches&, const PaintInfo*); |
| |
| // FIXME-BLOCKFLOW: Remove virtualizaion when all callers have moved to RenderBlockFlow |
| virtual void clipOutFloatingObjects(RenderBlock&, const PaintInfo*, const LayoutPoint&, const LayoutSize&) { }; |
| friend class LogicalSelectionOffsetCaches; |
| |
| void paintContinuationOutlines(PaintInfo&, const LayoutPoint&); |
| |
| LayoutRect localCaretRect(InlineBox*, unsigned caretOffset, LayoutUnit* extraWidthToEndOfLine = 0) final; |
| |
| // FIXME-BLOCKFLOW: Remove virtualizaion when all callers have moved to RenderBlockFlow |
| virtual VisiblePosition positionForPointWithInlineChildren(const LayoutPoint&, const RenderFragmentContainer*); |
| |
| RenderPtr<RenderBlock> clone() const; |
| |
| RenderFragmentedFlow* updateCachedEnclosingFragmentedFlow(RenderFragmentedFlow*) const; |
| |
| void removePositionedObjectsIfNeeded(const RenderStyle& oldStyle, const RenderStyle& newStyle); |
| |
| void absoluteQuadsIgnoringContinuation(const FloatRect&, Vector<FloatQuad>&, bool* wasFixed) const override; |
| |
| private: |
| bool hasRareData() const; |
| |
| protected: |
| void dirtyForLayoutFromPercentageHeightDescendants(); |
| |
| protected: |
| bool recomputeLogicalWidth(); |
| |
| public: |
| LayoutUnit offsetFromLogicalTopOfFirstPage() const override; |
| RenderFragmentContainer* fragmentAtBlockOffset(LayoutUnit) const; |
| |
| // FIXME: This is temporary to allow us to move code from RenderBlock into RenderBlockFlow that accesses member variables that we haven't moved out of |
| // RenderBlock yet. |
| friend class RenderBlockFlow; |
| // FIXME-BLOCKFLOW: Remove this when the line layout stuff has all moved out of RenderBlock |
| friend class LineBreaker; |
| |
| // RenderRubyBase objects need to be able to split and merge, moving their children around |
| // (calling moveChildTo, moveAllChildrenTo, and makeChildrenNonInline). |
| friend class RenderRubyBase; |
| |
| private: |
| // Used to store state between styleWillChange and styleDidChange |
| static bool s_canPropagateFloatIntoSibling; |
| }; |
| |
| LayoutUnit blockDirectionOffset(RenderBlock& rootBlock, const LayoutSize& offsetFromRootBlock); |
| LayoutUnit inlineDirectionOffset(RenderBlock& rootBlock, const LayoutSize& offsetFromRootBlock); |
| VisiblePosition positionForPointRespectingEditingBoundaries(RenderBlock&, RenderBox&, const LayoutPoint&); |
| |
| inline RenderPtr<RenderBlock> RenderBlock::createAnonymousWithParentRendererAndDisplay(const RenderBox& parent, DisplayType display) |
| { |
| return createAnonymousBlockWithStyleAndDisplay(parent.document(), parent.style(), display); |
| } |
| |
| inline RenderPtr<RenderBox> RenderBlock::createAnonymousBoxWithSameTypeAs(const RenderBox& renderer) const |
| { |
| return createAnonymousBlockWithStyleAndDisplay(document(), renderer.style(), style().display()); |
| } |
| |
| inline RenderPtr<RenderBlock> RenderBlock::createAnonymousBlock(DisplayType display) const |
| { |
| return createAnonymousBlockWithStyleAndDisplay(document(), style(), display); |
| } |
| |
| } // namespace WebCore |
| |
| SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderBlock, isRenderBlock()) |
