| Index: third_party/WebKit/WebCore/rendering/RenderObject.h
|
| ===================================================================
|
| --- third_party/WebKit/WebCore/rendering/RenderObject.h (revision 9383)
|
| +++ third_party/WebKit/WebCore/rendering/RenderObject.h (working copy)
|
| @@ -1,986 +1,991 @@
|
| -/*
|
| - * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
|
| - * (C) 2000 Antti Koivisto (koivisto@kde.org)
|
| - * (C) 2000 Dirk Mueller (mueller@kde.org)
|
| - * (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
|
| - * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 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 RenderObject_h
|
| -#define RenderObject_h
|
| -
|
| -#include "CachedResourceClient.h"
|
| -#include "FloatQuad.h"
|
| -#include "Document.h"
|
| -#include "RenderObjectChildList.h"
|
| -#include "RenderStyle.h"
|
| -
|
| -namespace WebCore {
|
| -
|
| -class AnimationController;
|
| -class HitTestResult;
|
| -class InlineBox;
|
| -class InlineFlowBox;
|
| -class RenderBoxModelObject;
|
| -class RenderInline;
|
| -class RenderBlock;
|
| -class RenderFlow;
|
| -class RenderLayer;
|
| -class VisiblePosition;
|
| -
|
| -/*
|
| - * The painting of a layer occurs in three distinct phases. Each phase involves
|
| - * a recursive descent into the layer's render objects. The first phase is the background phase.
|
| - * The backgrounds and borders of all blocks are painted. Inlines are not painted at all.
|
| - * Floats must paint above block backgrounds but entirely below inline content that can overlap them.
|
| - * In the foreground phase, all inlines are fully painted. Inline replaced elements will get all
|
| - * three phases invoked on them during this phase.
|
| - */
|
| -
|
| -enum PaintPhase {
|
| - PaintPhaseBlockBackground,
|
| - PaintPhaseChildBlockBackground,
|
| - PaintPhaseChildBlockBackgrounds,
|
| - PaintPhaseFloat,
|
| - PaintPhaseForeground,
|
| - PaintPhaseOutline,
|
| - PaintPhaseChildOutlines,
|
| - PaintPhaseSelfOutline,
|
| - PaintPhaseSelection,
|
| - PaintPhaseCollapsedTableBorders,
|
| - PaintPhaseTextClip,
|
| - PaintPhaseMask
|
| -};
|
| -
|
| -enum PaintRestriction {
|
| - PaintRestrictionNone,
|
| - PaintRestrictionSelectionOnly,
|
| - PaintRestrictionSelectionOnlyBlackText
|
| -};
|
| -
|
| -enum HitTestFilter {
|
| - HitTestAll,
|
| - HitTestSelf,
|
| - HitTestDescendants
|
| -};
|
| -
|
| -enum HitTestAction {
|
| - HitTestBlockBackground,
|
| - HitTestChildBlockBackground,
|
| - HitTestChildBlockBackgrounds,
|
| - HitTestFloat,
|
| - HitTestForeground
|
| -};
|
| -
|
| -// Values for verticalPosition.
|
| -const int PositionTop = -0x7fffffff;
|
| -const int PositionBottom = 0x7fffffff;
|
| -const int PositionUndefined = 0x80000000;
|
| -
|
| -#if ENABLE(DASHBOARD_SUPPORT)
|
| -struct DashboardRegionValue {
|
| - bool operator==(const DashboardRegionValue& o) const
|
| - {
|
| - return type == o.type && bounds == o.bounds && clip == o.clip && label == o.label;
|
| - }
|
| - bool operator!=(const DashboardRegionValue& o) const
|
| - {
|
| - return !(*this == o);
|
| - }
|
| -
|
| - String label;
|
| - IntRect bounds;
|
| - IntRect clip;
|
| - int type;
|
| -};
|
| -#endif
|
| -
|
| -// Base class for all rendering tree objects.
|
| -class RenderObject : public CachedResourceClient {
|
| - friend class RenderBlock;
|
| - friend class RenderBox;
|
| - friend class RenderLayer;
|
| - friend class RenderObjectChildList;
|
| - friend class RenderSVGContainer;
|
| -public:
|
| - // Anonymous objects should pass the document as their node, and they will then automatically be
|
| - // marked as anonymous in the constructor.
|
| - RenderObject(Node*);
|
| - virtual ~RenderObject();
|
| -
|
| - virtual const char* renderName() const = 0;
|
| -
|
| - RenderObject* parent() const { return m_parent; }
|
| - bool isDescendantOf(const RenderObject*) const;
|
| -
|
| - RenderObject* previousSibling() const { return m_previous; }
|
| - RenderObject* nextSibling() const { return m_next; }
|
| -
|
| - RenderObject* firstChild() const
|
| - {
|
| - if (const RenderObjectChildList* children = virtualChildren())
|
| - return children->firstChild();
|
| - return 0;
|
| - }
|
| - RenderObject* lastChild() const
|
| - {
|
| - if (const RenderObjectChildList* children = virtualChildren())
|
| - return children->lastChild();
|
| - return 0;
|
| - }
|
| - virtual RenderObjectChildList* virtualChildren() { return 0; }
|
| - virtual const RenderObjectChildList* virtualChildren() const { return 0; }
|
| -
|
| - RenderObject* nextInPreOrder() const;
|
| - RenderObject* nextInPreOrder(RenderObject* stayWithin) const;
|
| - RenderObject* nextInPreOrderAfterChildren() const;
|
| - RenderObject* nextInPreOrderAfterChildren(RenderObject* stayWithin) const;
|
| - RenderObject* previousInPreOrder() const;
|
| - RenderObject* childAt(unsigned) const;
|
| -
|
| - RenderObject* firstLeafChild() const;
|
| - RenderObject* lastLeafChild() const;
|
| -
|
| - // The following six functions are used when the render tree hierarchy changes to make sure layers get
|
| - // properly added and removed. Since containership can be implemented by any subclass, and since a hierarchy
|
| - // can contain a mixture of boxes and other object types, these functions need to be in the base class.
|
| - RenderLayer* enclosingLayer() const;
|
| -
|
| - void addLayers(RenderLayer* parentLayer, RenderObject* newObject);
|
| - void removeLayers(RenderLayer* parentLayer);
|
| - void moveLayers(RenderLayer* oldParent, RenderLayer* newParent);
|
| - RenderLayer* findNextLayer(RenderLayer* parentLayer, RenderObject* startPoint, bool checkParent = true);
|
| -
|
| -#if USE(ACCELERATED_COMPOSITING)
|
| - RenderLayer* enclosingCompositingLayer() const;
|
| -#endif
|
| -
|
| - // Convenience function for getting to the nearest enclosing box of a RenderObject.
|
| - RenderBox* enclosingBox() const;
|
| -
|
| - virtual IntRect getOverflowClipRect(int /*tx*/, int /*ty*/) { return IntRect(0, 0, 0, 0); }
|
| - virtual IntRect getClipRect(int /*tx*/, int /*ty*/) { return IntRect(0, 0, 0, 0); }
|
| - bool hasClip() { return isPositioned() && style()->hasClip(); }
|
| -
|
| - virtual int getBaselineOfFirstLineBox() const { return -1; }
|
| - virtual int getBaselineOfLastLineBox() const { return -1; }
|
| -
|
| - virtual bool isEmpty() const { return firstChild() == 0; }
|
| -
|
| - virtual bool isEdited() const { return false; }
|
| - virtual void setEdited(bool) { }
|
| -
|
| -#ifndef NDEBUG
|
| - void setHasAXObject(bool flag) { m_hasAXObject = flag; }
|
| - bool hasAXObject() const { return m_hasAXObject; }
|
| - bool isSetNeedsLayoutForbidden() const { return m_setNeedsLayoutForbidden; }
|
| - void setNeedsLayoutIsForbidden(bool flag) { m_setNeedsLayoutForbidden = flag; }
|
| -#endif
|
| -
|
| - // Obtains the nearest enclosing block (including this block) that contributes a first-line style to our inline
|
| - // children.
|
| - virtual RenderBlock* firstLineBlock() const;
|
| -
|
| - // Called when an object that was floating or positioned becomes a normal flow object
|
| - // again. We have to make sure the render tree updates as needed to accommodate the new
|
| - // normal flow object.
|
| - void handleDynamicFloatPositionChange();
|
| -
|
| - // This function is a convenience helper for creating an anonymous block that inherits its
|
| - // style from this RenderObject.
|
| - RenderBlock* createAnonymousBlock();
|
| -
|
| - // RenderObject tree manipulation
|
| - //////////////////////////////////////////
|
| - virtual bool canHaveChildren() const { return virtualChildren(); }
|
| - virtual bool isChildAllowed(RenderObject*, RenderStyle*) const { return true; }
|
| - virtual void addChild(RenderObject* newChild, RenderObject* beforeChild = 0);
|
| - virtual void addChildIgnoringContinuation(RenderObject* newChild, RenderObject* beforeChild = 0) { return addChild(newChild, beforeChild); }
|
| - virtual void removeChild(RenderObject*);
|
| - virtual bool createsAnonymousWrapper() const { return false; }
|
| - //////////////////////////////////////////
|
| -
|
| -protected:
|
| - //////////////////////////////////////////
|
| - // Helper functions. Dangerous to use!
|
| - void setPreviousSibling(RenderObject* previous) { m_previous = previous; }
|
| - void setNextSibling(RenderObject* next) { m_next = next; }
|
| - void setParent(RenderObject* parent) { m_parent = parent; }
|
| - //////////////////////////////////////////
|
| -private:
|
| - void addAbsoluteRectForLayer(IntRect& result);
|
| - void setLayerNeedsFullRepaint();
|
| -
|
| -public:
|
| -#ifndef NDEBUG
|
| - void showTreeForThis() const;
|
| -#endif
|
| -
|
| - static RenderObject* createObject(Node*, RenderStyle*);
|
| -
|
| - // Overloaded new operator. Derived classes must override operator new
|
| - // in order to allocate out of the RenderArena.
|
| - void* operator new(size_t, RenderArena*) throw();
|
| -
|
| - // Overridden to prevent the normal delete from being called.
|
| - void operator delete(void*, size_t);
|
| -
|
| -private:
|
| - // The normal operator new is disallowed on all render objects.
|
| - void* operator new(size_t) throw();
|
| -
|
| -public:
|
| - RenderArena* renderArena() const { return document()->renderArena(); }
|
| -
|
| - virtual bool isApplet() const { return false; }
|
| - virtual bool isBR() const { return false; }
|
| - virtual bool isBlockFlow() const { return false; }
|
| - virtual bool isBoxModelObject() const { return false; }
|
| - virtual bool isCounter() const { return false; }
|
| - virtual bool isFieldset() const { return false; }
|
| - virtual bool isFrame() const { return false; }
|
| - virtual bool isFrameSet() const { return false; }
|
| - virtual bool isImage() const { return false; }
|
| - virtual bool isInlineBlockOrInlineTable() const { return false; }
|
| - virtual bool isListBox() const { return false; }
|
| - virtual bool isListItem() const { return false; }
|
| - virtual bool isListMarker() const { return false; }
|
| - virtual bool isMedia() const { return false; }
|
| - virtual bool isMenuList() const { return false; }
|
| - virtual bool isRenderBlock() const { return false; }
|
| - virtual bool isRenderButton() const { return false; }
|
| - virtual bool isRenderImage() const { return false; }
|
| - virtual bool isRenderInline() const { return false; }
|
| - virtual bool isRenderPart() const { return false; }
|
| - virtual bool isRenderView() const { return false; }
|
| - virtual bool isSlider() const { return false; }
|
| - virtual bool isTable() const { return false; }
|
| - virtual bool isTableCell() const { return false; }
|
| - virtual bool isTableCol() const { return false; }
|
| - virtual bool isTableRow() const { return false; }
|
| - virtual bool isTableSection() const { return false; }
|
| - virtual bool isTextArea() const { return false; }
|
| - virtual bool isTextField() const { return false; }
|
| - virtual bool isWidget() const { return false; }
|
| -
|
| - bool isRoot() const { return document()->documentElement() == node(); }
|
| - bool isBody() const;
|
| - bool isHR() const;
|
| -
|
| - bool isHTMLMarquee() const;
|
| -
|
| - bool childrenInline() const { return m_childrenInline; }
|
| - void setChildrenInline(bool b = true) { m_childrenInline = b; }
|
| - bool hasColumns() const { return m_hasColumns; }
|
| - void setHasColumns(bool b = true) { m_hasColumns = b; }
|
| - bool cellWidthChanged() const { return m_cellWidthChanged; }
|
| - void setCellWidthChanged(bool b = true) { m_cellWidthChanged = b; }
|
| -
|
| -#if ENABLE(SVG)
|
| - virtual bool isSVGRoot() const { return false; }
|
| - virtual bool isSVGContainer() const { return false; }
|
| - virtual bool isSVGHiddenContainer() const { return false; }
|
| - virtual bool isRenderPath() const { return false; }
|
| - virtual bool isSVGText() const { return false; }
|
| -
|
| - virtual FloatRect relativeBBox(bool includeStroke = true) const;
|
| -
|
| - virtual TransformationMatrix localTransform() const;
|
| - virtual TransformationMatrix absoluteTransform() const;
|
| -#endif
|
| -
|
| - virtual bool isEditable() const;
|
| -
|
| - bool isAnonymous() const { return m_isAnonymous; }
|
| - void setIsAnonymous(bool b) { m_isAnonymous = b; }
|
| - bool isAnonymousBlock() const
|
| - {
|
| - return m_isAnonymous && style()->display() == BLOCK && style()->styleType() == NOPSEUDO && !isListMarker();
|
| - }
|
| - bool isInlineContinuation() const { return isInline() && isBox() && (element() ? element()->renderer() != this : false); }
|
| - bool isFloating() const { return m_floating; }
|
| - bool isPositioned() const { return m_positioned; } // absolute or fixed positioning
|
| - bool isRelPositioned() const { return m_relPositioned; } // relative positioning
|
| - bool isText() const { return m_isText; }
|
| - bool isBox() const { return m_isBox; }
|
| - bool isInline() const { return m_inline; } // inline object
|
| - bool isRunIn() const { return style()->display() == RUN_IN; } // run-in object
|
| - bool isDragging() const { return m_isDragging; }
|
| - bool isReplaced() const { return m_replaced; } // a "replaced" element (see CSS)
|
| -
|
| - bool hasLayer() const { return m_hasLayer; }
|
| -
|
| - bool hasBoxDecorations() const { return m_paintBackground; }
|
| - bool mustRepaintBackgroundOrBorder() const;
|
| -
|
| - bool needsLayout() const { return m_needsLayout || m_normalChildNeedsLayout || m_posChildNeedsLayout || m_needsPositionedMovementLayout; }
|
| - bool selfNeedsLayout() const { return m_needsLayout; }
|
| - bool needsPositionedMovementLayout() const { return m_needsPositionedMovementLayout; }
|
| - bool needsPositionedMovementLayoutOnly() const { return m_needsPositionedMovementLayout && !m_needsLayout && !m_normalChildNeedsLayout && !m_posChildNeedsLayout; }
|
| - bool posChildNeedsLayout() const { return m_posChildNeedsLayout; }
|
| - bool normalChildNeedsLayout() const { return m_normalChildNeedsLayout; }
|
| -
|
| - bool prefWidthsDirty() const { return m_prefWidthsDirty; }
|
| -
|
| - bool isSelectionBorder() const;
|
| -
|
| - bool hasOverflowClip() const { return m_hasOverflowClip; }
|
| - virtual bool hasControlClip() const { return false; }
|
| - virtual IntRect controlClipRect(int /*tx*/, int /*ty*/) const { return IntRect(); }
|
| -
|
| - bool hasTransform() const { return m_hasTransform; }
|
| - bool hasMask() const { return style() && style()->hasMask(); }
|
| -
|
| -public:
|
| - // The pseudo element style can be cached or uncached. Use the cached method if the pseudo element doesn't respect
|
| - // any pseudo classes (and therefore has no concept of changing state).
|
| - RenderStyle* getCachedPseudoStyle(PseudoId, RenderStyle* parentStyle = 0) const;
|
| - PassRefPtr<RenderStyle> getUncachedPseudoStyle(PseudoId, RenderStyle* parentStyle = 0) const;
|
| -
|
| - virtual void updateDragState(bool dragOn);
|
| -
|
| - RenderView* view() const;
|
| -
|
| - // don't even think about making this method virtual!
|
| - Node* element() const { return m_isAnonymous ? 0 : m_node; }
|
| - Document* document() const { return m_node->document(); }
|
| - void setNode(Node* node) { m_node = node; }
|
| - Node* node() const { return m_node; }
|
| -
|
| - bool hasOutlineAnnotation() const;
|
| - bool hasOutline() const { return style()->hasOutline() || hasOutlineAnnotation(); }
|
| -
|
| - /**
|
| - * returns the object containing this one. can be different from parent for
|
| - * positioned elements
|
| - */
|
| - RenderObject* container() const;
|
| - virtual RenderObject* hoverAncestor() const { return parent(); }
|
| -
|
| - void markContainingBlocksForLayout(bool scheduleRelayout = true, RenderObject* newRoot = 0);
|
| - void setNeedsLayout(bool b, bool markParents = true);
|
| - void setChildNeedsLayout(bool b, bool markParents = true);
|
| - void setNeedsPositionedMovementLayout();
|
| - void setPrefWidthsDirty(bool, bool markParents = true);
|
| - void invalidateContainerPrefWidths();
|
| -
|
| - void setNeedsLayoutAndPrefWidthsRecalc()
|
| - {
|
| - setNeedsLayout(true);
|
| - setPrefWidthsDirty(true);
|
| - }
|
| -
|
| - void setPositioned(bool b = true) { m_positioned = b; }
|
| - void setRelPositioned(bool b = true) { m_relPositioned = b; }
|
| - void setFloating(bool b = true) { m_floating = b; }
|
| - void setInline(bool b = true) { m_inline = b; }
|
| - void setHasBoxDecorations(bool b = true) { m_paintBackground = b; }
|
| - void setIsText() { m_isText = true; }
|
| - void setIsBox() { m_isBox = true; }
|
| - void setReplaced(bool b = true) { m_replaced = b; }
|
| - void setHasOverflowClip(bool b = true) { m_hasOverflowClip = b; }
|
| - void setHasLayer(bool b = true) { m_hasLayer = b; }
|
| - void setHasTransform(bool b = true) { m_hasTransform = b; }
|
| - void setHasReflection(bool b = true) { m_hasReflection = b; }
|
| -
|
| - void scheduleRelayout();
|
| -
|
| - void updateFillImages(const FillLayer*, const FillLayer*);
|
| - void updateImage(StyleImage*, StyleImage*);
|
| -
|
| - virtual InlineBox* createInlineBox(bool makePlaceHolderBox, bool isRootLineBox, bool isOnlyRun = false);
|
| - virtual void dirtyLineBoxes(bool fullLayout, bool isRootLineBox = false);
|
| -
|
| - // For inline replaced elements, this function returns the inline box that owns us. Enables
|
| - // the replaced RenderObject to quickly determine what line it is contained on and to easily
|
| - // iterate over structures on the line.
|
| - virtual InlineBox* inlineBoxWrapper() const;
|
| - virtual void setInlineBoxWrapper(InlineBox*);
|
| - virtual void deleteLineBoxWrapper();
|
| -
|
| - // for discussion of lineHeight see CSS2 spec
|
| - virtual int lineHeight(bool firstLine, bool isRootLineBox = false) const;
|
| - // for the vertical-align property of inline elements
|
| - // the difference between this objects baseline position and the lines baseline position.
|
| - virtual int verticalPositionHint(bool firstLine) const;
|
| - // the offset of baseline from the top of the object.
|
| - virtual int baselinePosition(bool firstLine, bool isRootLineBox = false) const;
|
| -
|
| - /*
|
| - * Paint the object and its children, clipped by (x|y|w|h).
|
| - * (tx|ty) is the calculated position of the parent
|
| - */
|
| - struct PaintInfo {
|
| - PaintInfo(GraphicsContext* newContext, const IntRect& newRect, PaintPhase newPhase, bool newForceBlackText,
|
| - RenderObject* newPaintingRoot, ListHashSet<RenderInline*>* newOutlineObjects)
|
| - : context(newContext)
|
| - , rect(newRect)
|
| - , phase(newPhase)
|
| - , forceBlackText(newForceBlackText)
|
| - , paintingRoot(newPaintingRoot)
|
| - , outlineObjects(newOutlineObjects)
|
| - {
|
| - }
|
| -
|
| - GraphicsContext* context;
|
| - IntRect rect;
|
| - PaintPhase phase;
|
| - bool forceBlackText;
|
| - RenderObject* paintingRoot; // used to draw just one element and its visual kids
|
| - ListHashSet<RenderInline*>* outlineObjects; // used to list outlines that should be painted by a block with inline children
|
| - };
|
| -
|
| - virtual void paint(PaintInfo&, int tx, int ty);
|
| - void paintBorder(GraphicsContext*, int tx, int ty, int w, int h, const RenderStyle*, bool begin = true, bool end = true);
|
| - bool paintNinePieceImage(GraphicsContext*, int tx, int ty, int w, int h, const RenderStyle*, const NinePieceImage&, CompositeOperator = CompositeSourceOver);
|
| - void paintBoxShadow(GraphicsContext*, int tx, int ty, int w, int h, const RenderStyle*, bool begin = true, bool end = true);
|
| -
|
| - // RenderBox implements this.
|
| - virtual void paintBoxDecorations(PaintInfo&, int /*tx*/, int /*ty*/) { }
|
| - virtual void paintMask(PaintInfo&, int /*tx*/, int /*ty*/) { }
|
| - virtual void paintFillLayerExtended(const PaintInfo&, const Color&, const FillLayer*,
|
| - int /*clipY*/, int /*clipH*/, int /*tx*/, int /*ty*/, int /*width*/, int /*height*/,
|
| - InlineFlowBox* = 0, CompositeOperator = CompositeSourceOver) { }
|
| -
|
| - /*
|
| - * Calculates the actual width of the object (only for non inline
|
| - * objects)
|
| - */
|
| - virtual void calcWidth() { }
|
| -
|
| - // Recursive function that computes the size and position of this object and all its descendants.
|
| - virtual void layout();
|
| -
|
| - /* This function performs a layout only if one is needed. */
|
| - void layoutIfNeeded() { if (needsLayout()) layout(); }
|
| -
|
| - // Called when a positioned object moves but doesn't necessarily change size. A simplified layout is attempted
|
| - // that just updates the object's position. If the size does change, the object remains dirty.
|
| - virtual void tryLayoutDoingPositionedMovementOnly() { }
|
| -
|
| - // used for element state updates that cannot be fixed with a
|
| - // repaint and do not need a relayout
|
| - virtual void updateFromElement() { }
|
| -
|
| - virtual void updateWidgetPosition();
|
| -
|
| -#if ENABLE(DASHBOARD_SUPPORT)
|
| - virtual void addDashboardRegions(Vector<DashboardRegionValue>&);
|
| - void collectDashboardRegions(Vector<DashboardRegionValue>&);
|
| -#endif
|
| -
|
| - bool hitTest(const HitTestRequest&, HitTestResult&, const IntPoint&, int tx, int ty, HitTestFilter = HitTestAll);
|
| - virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty, HitTestAction);
|
| - virtual void updateHitTestResult(HitTestResult&, const IntPoint&);
|
| -
|
| - virtual VisiblePosition positionForCoordinates(int x, int y);
|
| - VisiblePosition positionForPoint(const IntPoint&);
|
| -
|
| - virtual void dirtyLinesFromChangedChild(RenderObject*);
|
| -
|
| - // Called to update a style that is allowed to trigger animations.
|
| - // FIXME: Right now this will typically be called only when updating happens from the DOM on explicit elements.
|
| - // We don't yet handle generated content animation such as first-letter or before/after (we'll worry about this later).
|
| - void setAnimatableStyle(PassRefPtr<RenderStyle>);
|
| -
|
| - // Set the style of the object and update the state of the object accordingly.
|
| - virtual void setStyle(PassRefPtr<RenderStyle>);
|
| -
|
| - // Updates only the local style ptr of the object. Does not update the state of the object,
|
| - // and so only should be called when the style is known not to have changed (or from setStyle).
|
| - void setStyleInternal(PassRefPtr<RenderStyle>);
|
| -
|
| - // returns the containing block level element for this element.
|
| - RenderBlock* containingBlock() const;
|
| -
|
| - // return just the width of the containing block
|
| - virtual int containingBlockWidth() const;
|
| - // return just the height of the containing block
|
| - virtual int containingBlockHeight() const;
|
| -
|
| - // used by flexible boxes to impose a flexed width/height override
|
| - virtual int overrideSize() const { return 0; }
|
| - virtual int overrideWidth() const { return 0; }
|
| - virtual int overrideHeight() const { return 0; }
|
| - virtual void setOverrideSize(int /*overrideSize*/) { }
|
| -
|
| - // Convert the given local point to absolute coordinates
|
| - // FIXME: Temporary. If useTransforms is true, take transforms into account. Eventually localToAbsolute() will always be transform-aware.
|
| - virtual FloatPoint localToAbsolute(FloatPoint localPoint = FloatPoint(), bool fixed = false, bool useTransforms = false) const;
|
| - virtual FloatPoint absoluteToLocal(FloatPoint, bool fixed = false, bool useTransforms = false) const;
|
| -
|
| - // Convert a local quad to absolute coordinates, taking transforms into account.
|
| - FloatQuad localToAbsoluteQuad(const FloatQuad& quad, bool fixed = false) const
|
| - {
|
| - return localToContainerQuad(quad, 0, fixed);
|
| - }
|
| - // Convert a local quad into the coordinate system of container, taking transforms into account.
|
| - virtual FloatQuad localToContainerQuad(const FloatQuad&, RenderBoxModelObject* repaintContainer, bool fixed = false) const;
|
| -
|
| - // Return the offset from the container() renderer (excluding transforms)
|
| - virtual IntSize offsetFromContainer(RenderObject*) const;
|
| -
|
| - virtual void absoluteRectsForRange(Vector<IntRect>&, unsigned startOffset = 0, unsigned endOffset = UINT_MAX, bool useSelectionHeight = false);
|
| -
|
| - virtual void absoluteRects(Vector<IntRect>&, int, int, bool = true) { }
|
| - // FIXME: useTransforms should go away eventually
|
| - IntRect absoluteBoundingBoxRect(bool useTransforms = false);
|
| -
|
| - // Build an array of quads in absolute coords for line boxes
|
| - virtual void absoluteQuadsForRange(Vector<FloatQuad>&, unsigned startOffset = 0, unsigned endOffset = UINT_MAX, bool useSelectionHeight = false);
|
| - virtual void absoluteQuads(Vector<FloatQuad>&, bool /*topLevel*/ = true) { }
|
| -
|
| - // the rect that will be painted if this object is passed as the paintingRoot
|
| - IntRect paintingRootRect(IntRect& topLevelRect);
|
| -
|
| - virtual int minPrefWidth() const { return 0; }
|
| - virtual int maxPrefWidth() const { return 0; }
|
| -
|
| - RenderStyle* style() const { return m_style.get(); }
|
| - RenderStyle* firstLineStyle() const { return document()->usesFirstLineRules() ? firstLineStyleSlowCase() : style(); }
|
| - RenderStyle* style(bool firstLine) const { return firstLine ? firstLineStyle() : style(); }
|
| -
|
| - // Anonymous blocks that are part of of a continuation chain will return their inline continuation's outline style instead.
|
| - // This is typically only relevant when repainting.
|
| - virtual RenderStyle* outlineStyleForRepaint() const { return style(); }
|
| -
|
| - void getTextDecorationColors(int decorations, Color& underline, Color& overline,
|
| - Color& linethrough, bool quirksMode = false);
|
| -
|
| - enum BorderSide {
|
| - BSTop,
|
| - BSBottom,
|
| - BSLeft,
|
| - BSRight
|
| - };
|
| -
|
| - void drawBorderArc(GraphicsContext*, int x, int y, float thickness, IntSize radius, int angleStart,
|
| - int angleSpan, BorderSide, Color, const Color& textcolor, EBorderStyle, bool firstCorner);
|
| - void drawBorder(GraphicsContext*, int x1, int y1, int x2, int y2, BorderSide,
|
| - Color, const Color& textcolor, EBorderStyle, int adjbw1, int adjbw2);
|
| -
|
| - // Return the RenderBox in the container chain which is responsible for painting this object, or 0
|
| - // if painting is root-relative. This is the container that should be passed to the 'forRepaint'
|
| - // methods.
|
| - RenderBoxModelObject* containerForRepaint() const;
|
| - // Actually do the repaint of rect r for this object which has been computed in the coordinate space
|
| - // of repaintContainer. If repaintContainer is 0, repaint via the view.
|
| - void repaintUsingContainer(RenderBoxModelObject* repaintContainer, const IntRect& r, bool immediate = false);
|
| -
|
| - // Repaint the entire object. Called when, e.g., the color of a border changes, or when a border
|
| - // style changes.
|
| - void repaint(bool immediate = false);
|
| -
|
| - // Repaint a specific subrectangle within a given object. The rect |r| is in the object's coordinate space.
|
| - void repaintRectangle(const IntRect&, bool immediate = false);
|
| -
|
| - // Repaint only if our old bounds and new bounds are different.
|
| - bool repaintAfterLayoutIfNeeded(RenderBoxModelObject* repaintContainer, const IntRect& oldBounds, const IntRect& oldOutlineBox);
|
| -
|
| - // Repaint only if the object moved.
|
| - virtual void repaintDuringLayoutIfMoved(const IntRect& rect);
|
| -
|
| - // Called to repaint a block's floats.
|
| - virtual void repaintOverhangingFloats(bool paintAllDescendants = false);
|
| -
|
| - bool checkForRepaintDuringLayout() const;
|
| -
|
| - // Returns the rect that should be repainted whenever this object changes. The rect is in the view's
|
| - // coordinate space. This method deals with outlines and overflow.
|
| - IntRect absoluteClippedOverflowRect()
|
| - {
|
| - return clippedOverflowRectForRepaint(0);
|
| - }
|
| - virtual IntRect clippedOverflowRectForRepaint(RenderBoxModelObject* repaintContainer);
|
| - virtual IntRect rectWithOutlineForRepaint(RenderBoxModelObject* repaintContainer, int outlineWidth);
|
| -
|
| - // Given a rect in the object's coordinate space, compute a rect suitable for repainting
|
| - // that rect in view coordinates.
|
| - void computeAbsoluteRepaintRect(IntRect& r, bool fixed = false)
|
| - {
|
| - return computeRectForRepaint(0, r, fixed);
|
| - }
|
| - // Given a rect in the object's coordinate space, compute a rect suitable for repainting
|
| - // that rect in the coordinate space of repaintContainer.
|
| - virtual void computeRectForRepaint(RenderBoxModelObject* repaintContainer, IntRect&, bool fixed = false);
|
| -
|
| - virtual unsigned int length() const { return 1; }
|
| -
|
| - bool isFloatingOrPositioned() const { return (isFloating() || isPositioned()); }
|
| - virtual bool containsFloats() { return false; }
|
| - virtual bool containsFloat(RenderObject*) { return false; }
|
| - virtual bool hasOverhangingFloats() { return false; }
|
| -
|
| - virtual bool avoidsFloats() const;
|
| - bool shrinkToAvoidFloats() const;
|
| -
|
| - // positioning of inline children (bidi)
|
| - virtual void position(InlineBox*) { }
|
| -
|
| - bool isTransparent() const { return style()->opacity() < 1.0f; }
|
| - float opacity() const { return style()->opacity(); }
|
| -
|
| - bool hasReflection() const { return m_hasReflection; }
|
| -
|
| - // Applied as a "slop" to dirty rect checks during the outline painting phase's dirty-rect checks.
|
| - int maximalOutlineSize(PaintPhase) const;
|
| -
|
| - void setHasMarkupTruncation(bool b = true) { m_hasMarkupTruncation = b; }
|
| - bool hasMarkupTruncation() const { return m_hasMarkupTruncation; }
|
| -
|
| - enum SelectionState {
|
| - SelectionNone, // The object is not selected.
|
| - SelectionStart, // The object either contains the start of a selection run or is the start of a run
|
| - SelectionInside, // The object is fully encompassed by a selection run
|
| - SelectionEnd, // The object either contains the end of a selection run or is the end of a run
|
| - SelectionBoth // The object contains an entire run or is the sole selected object in that run
|
| - };
|
| -
|
| - // The current selection state for an object. For blocks, the state refers to the state of the leaf
|
| - // descendants (as described above in the SelectionState enum declaration).
|
| - SelectionState selectionState() const { return static_cast<SelectionState>(m_selectionState);; }
|
| -
|
| - // Sets the selection state for an object.
|
| - virtual void setSelectionState(SelectionState state) { m_selectionState = state; }
|
| -
|
| - // A single rectangle that encompasses all of the selected objects within this object. Used to determine the tightest
|
| - // possible bounding box for the selection.
|
| - IntRect selectionRect(bool clipToVisibleContent = true) { return selectionRectForRepaint(0, clipToVisibleContent); }
|
| - virtual IntRect selectionRectForRepaint(RenderBoxModelObject* /*repaintContainer*/, bool /*clipToVisibleContent*/ = true) { return IntRect(); }
|
| -
|
| - // Whether or not an object can be part of the leaf elements of the selection.
|
| - virtual bool canBeSelectionLeaf() const { return false; }
|
| -
|
| - // Whether or not a block has selected children.
|
| - bool hasSelectedChildren() const { return m_selectionState != SelectionNone; }
|
| -
|
| - // Obtains the selection colors that should be used when painting a selection.
|
| - Color selectionBackgroundColor() const;
|
| - Color selectionForegroundColor() const;
|
| -
|
| - // Whether or not a given block needs to paint selection gaps.
|
| - virtual bool shouldPaintSelectionGaps() const { return false; }
|
| -
|
| - Node* draggableNode(bool dhtmlOK, bool uaOK, int x, int y, bool& dhtmlWillDrag) const;
|
| -
|
| - /**
|
| - * Returns the local coordinates of the caret within this render object.
|
| - * @param caretOffset zero-based offset determining position within the render object.
|
| - * @param extraWidthToEndOfLine optional out arg to give extra width to end of line -
|
| - * useful for character range rect computations
|
| - */
|
| - virtual IntRect localCaretRect(InlineBox*, int caretOffset, int* extraWidthToEndOfLine = 0);
|
| -
|
| - virtual int lowestPosition(bool /*includeOverflowInterior*/ = true, bool /*includeSelf*/ = true) const { return 0; }
|
| - virtual int rightmostPosition(bool /*includeOverflowInterior*/ = true, bool /*includeSelf*/ = true) const { return 0; }
|
| - virtual int leftmostPosition(bool /*includeOverflowInterior*/ = true, bool /*includeSelf*/ = true) const { return 0; }
|
| -
|
| - virtual void calcVerticalMargins() { }
|
| - bool isTopMarginQuirk() const { return m_topMarginQuirk; }
|
| - bool isBottomMarginQuirk() const { return m_bottomMarginQuirk; }
|
| - void setTopMarginQuirk(bool b = true) { m_topMarginQuirk = b; }
|
| - void setBottomMarginQuirk(bool b = true) { m_bottomMarginQuirk = b; }
|
| -
|
| - // When performing a global document tear-down, the renderer of the document is cleared. We use this
|
| - // as a hook to detect the case of document destruction and don't waste time doing unnecessary work.
|
| - bool documentBeingDestroyed() const;
|
| -
|
| - virtual void destroy();
|
| -
|
| - // Virtual function helpers for CSS3 Flexible Box Layout
|
| - virtual bool isFlexibleBox() const { return false; }
|
| - virtual bool isFlexingChildren() const { return false; }
|
| - virtual bool isStretchingChildren() const { return false; }
|
| -
|
| - virtual int caretMinOffset() const;
|
| - virtual int caretMaxOffset() const;
|
| - virtual unsigned caretMaxRenderedOffset() const;
|
| -
|
| - virtual int previousOffset(int current) const;
|
| - virtual int previousOffsetForBackwardDeletion(int current) const;
|
| - virtual int nextOffset(int current) const;
|
| -
|
| - virtual void imageChanged(CachedImage*, const IntRect* = 0);
|
| - virtual void imageChanged(WrappedImagePtr, const IntRect* = 0) { }
|
| - virtual bool willRenderImage(CachedImage*);
|
| -
|
| - virtual void selectionStartEnd(int& spos, int& epos) const;
|
| -
|
| - RenderObject* paintingRootForChildren(PaintInfo& paintInfo) const
|
| - {
|
| - // if we're the painting root, kids draw normally, and see root of 0
|
| - return (!paintInfo.paintingRoot || paintInfo.paintingRoot == this) ? 0 : paintInfo.paintingRoot;
|
| - }
|
| -
|
| - bool shouldPaintWithinRoot(PaintInfo& paintInfo) const
|
| - {
|
| - return !paintInfo.paintingRoot || paintInfo.paintingRoot == this;
|
| - }
|
| -
|
| - bool hasOverrideSize() const { return m_hasOverrideSize; }
|
| - void setHasOverrideSize(bool b) { m_hasOverrideSize = b; }
|
| -
|
| - void remove() { if (parent()) parent()->removeChild(this); }
|
| -
|
| - void invalidateVerticalPosition() { m_verticalPosition = PositionUndefined; }
|
| -
|
| - virtual void capsLockStateMayHaveChanged() { }
|
| -
|
| - AnimationController* animation() const;
|
| -
|
| - bool visibleToHitTesting() const { return style()->visibility() == VISIBLE && style()->pointerEvents() != PE_NONE; }
|
| -
|
| - virtual void addFocusRingRects(GraphicsContext*, int /*tx*/, int /*ty*/) { };
|
| -
|
| - IntRect absoluteOutlineBounds() const
|
| - {
|
| - return outlineBoundsForRepaint(0);
|
| - }
|
| -
|
| -protected:
|
| - // Overrides should call the superclass at the end
|
| - virtual void styleWillChange(StyleDifference, const RenderStyle* newStyle);
|
| - // Overrides should call the superclass at the start
|
| - virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);
|
| -
|
| - virtual void printBoxDecorations(GraphicsContext*, int /*x*/, int /*y*/, int /*w*/, int /*h*/, int /*tx*/, int /*ty*/) { }
|
| -
|
| - void paintOutline(GraphicsContext*, int tx, int ty, int w, int h, const RenderStyle*);
|
| - void addPDFURLRect(GraphicsContext*, const IntRect&);
|
| -
|
| - virtual IntRect viewRect() const;
|
| -
|
| - int getVerticalPosition(bool firstLine) const;
|
| -
|
| - void adjustRectForOutlineAndShadow(IntRect&) const;
|
| -
|
| - void arenaDelete(RenderArena*, void* objectBase);
|
| -
|
| - virtual IntRect outlineBoundsForRepaint(RenderBoxModelObject* /*repaintContainer*/) const { return IntRect(); }
|
| -
|
| - class LayoutRepainter {
|
| - public:
|
| - LayoutRepainter(RenderObject& object, bool checkForRepaint, const IntRect* oldBounds = 0)
|
| - : m_object(object)
|
| - , m_repaintContainer(0)
|
| - , m_checkForRepaint(checkForRepaint)
|
| - {
|
| - if (m_checkForRepaint) {
|
| - m_repaintContainer = m_object.containerForRepaint();
|
| - m_oldBounds = oldBounds ? *oldBounds : m_object.clippedOverflowRectForRepaint(m_repaintContainer);
|
| - m_oldOutlineBox = m_object.outlineBoundsForRepaint(m_repaintContainer);
|
| - }
|
| - }
|
| -
|
| - // Return true if it repainted.
|
| - bool repaintAfterLayout()
|
| - {
|
| - return m_checkForRepaint ? m_object.repaintAfterLayoutIfNeeded(m_repaintContainer, m_oldBounds, m_oldOutlineBox) : false;
|
| - }
|
| -
|
| - bool checkForRepaint() const { return m_checkForRepaint; }
|
| -
|
| - private:
|
| - RenderObject& m_object;
|
| - RenderBoxModelObject* m_repaintContainer;
|
| - IntRect m_oldBounds;
|
| - IntRect m_oldOutlineBox;
|
| - bool m_checkForRepaint;
|
| - };
|
| -
|
| -private:
|
| - RenderStyle* firstLineStyleSlowCase() const;
|
| -
|
| - RefPtr<RenderStyle> m_style;
|
| -
|
| - Node* m_node;
|
| -
|
| - RenderObject* m_parent;
|
| - RenderObject* m_previous;
|
| - RenderObject* m_next;
|
| -
|
| -#ifndef NDEBUG
|
| - bool m_hasAXObject;
|
| - bool m_setNeedsLayoutForbidden : 1;
|
| -#endif
|
| - mutable int m_verticalPosition;
|
| -
|
| - // 31 bits have been used here. Count the bits before you add any and update the comment
|
| - // with the new total.
|
| - bool m_needsLayout : 1;
|
| - bool m_needsPositionedMovementLayout :1;
|
| - bool m_normalChildNeedsLayout : 1;
|
| - bool m_posChildNeedsLayout : 1;
|
| - bool m_prefWidthsDirty : 1;
|
| - bool m_floating : 1;
|
| -
|
| - bool m_positioned : 1;
|
| - bool m_relPositioned : 1;
|
| - bool m_paintBackground : 1; // if the box has something to paint in the
|
| - // background painting phase (background, border, etc)
|
| -
|
| - bool m_isAnonymous : 1;
|
| - bool m_isText : 1;
|
| - bool m_isBox : 1;
|
| - bool m_inline : 1;
|
| - bool m_replaced : 1;
|
| - bool m_isDragging : 1;
|
| -
|
| - bool m_hasLayer : 1;
|
| - bool m_hasOverflowClip : 1;
|
| - bool m_hasTransform : 1;
|
| - bool m_hasReflection : 1;
|
| -
|
| - bool m_hasOverrideSize : 1;
|
| -
|
| -public:
|
| - bool m_hasCounterNodeMap : 1;
|
| - bool m_everHadLayout : 1;
|
| -
|
| -private:
|
| - // These bitfields are moved here from subclasses to pack them together
|
| - // from RenderBlock
|
| - bool m_childrenInline : 1;
|
| - bool m_topMarginQuirk : 1;
|
| - bool m_bottomMarginQuirk : 1;
|
| - bool m_hasMarkupTruncation : 1;
|
| - unsigned m_selectionState : 3; // SelectionState
|
| - bool m_hasColumns : 1;
|
| -
|
| - // from RenderTableCell
|
| - bool m_cellWidthChanged : 1;
|
| -
|
| -private:
|
| - // Store state between styleWillChange and styleDidChange
|
| - static bool s_affectsParentBlock;
|
| -};
|
| -
|
| -inline bool RenderObject::documentBeingDestroyed() const
|
| -{
|
| - return !document()->renderer();
|
| -}
|
| -
|
| -inline void RenderObject::setNeedsLayout(bool b, bool markParents)
|
| -{
|
| - bool alreadyNeededLayout = m_needsLayout;
|
| - m_needsLayout = b;
|
| - if (b) {
|
| - ASSERT(!isSetNeedsLayoutForbidden());
|
| - if (!alreadyNeededLayout) {
|
| - if (markParents)
|
| - markContainingBlocksForLayout();
|
| - if (hasLayer())
|
| - setLayerNeedsFullRepaint();
|
| - }
|
| - } else {
|
| - m_everHadLayout = true;
|
| - m_posChildNeedsLayout = false;
|
| - m_normalChildNeedsLayout = false;
|
| - m_needsPositionedMovementLayout = false;
|
| - }
|
| -}
|
| -
|
| -inline void RenderObject::setChildNeedsLayout(bool b, bool markParents)
|
| -{
|
| - bool alreadyNeededLayout = m_normalChildNeedsLayout;
|
| - m_normalChildNeedsLayout = b;
|
| - if (b) {
|
| - ASSERT(!isSetNeedsLayoutForbidden());
|
| - if (!alreadyNeededLayout && markParents)
|
| - markContainingBlocksForLayout();
|
| - } else {
|
| - m_posChildNeedsLayout = false;
|
| - m_normalChildNeedsLayout = false;
|
| - m_needsPositionedMovementLayout = false;
|
| - }
|
| -}
|
| -
|
| -inline void RenderObject::setNeedsPositionedMovementLayout()
|
| -{
|
| - bool alreadyNeededLayout = needsLayout();
|
| - m_needsPositionedMovementLayout = true;
|
| - if (!alreadyNeededLayout) {
|
| - markContainingBlocksForLayout();
|
| - if (hasLayer())
|
| - setLayerNeedsFullRepaint();
|
| - }
|
| -}
|
| -
|
| -inline bool objectIsRelayoutBoundary(const RenderObject *obj)
|
| -{
|
| - // FIXME: In future it may be possible to broaden this condition in order to improve performance.
|
| - // Table cells are excluded because even when their CSS height is fixed, their height()
|
| - // may depend on their contents.
|
| - return obj->isTextField() || obj->isTextArea()
|
| - || obj->hasOverflowClip() && !obj->style()->width().isIntrinsicOrAuto() && !obj->style()->height().isIntrinsicOrAuto() && !obj->style()->height().isPercent() && !obj->isTableCell()
|
| -#if ENABLE(SVG)
|
| - || obj->isSVGRoot()
|
| -#endif
|
| - ;
|
| -}
|
| -
|
| -inline void RenderObject::markContainingBlocksForLayout(bool scheduleRelayout, RenderObject* newRoot)
|
| -{
|
| - ASSERT(!scheduleRelayout || !newRoot);
|
| -
|
| - RenderObject* o = container();
|
| - RenderObject* last = this;
|
| -
|
| - while (o) {
|
| - if (!last->isText() && (last->style()->position() == FixedPosition || last->style()->position() == AbsolutePosition)) {
|
| - if ((last->style()->top().isAuto() && last->style()->bottom().isAuto()) || last->style()->top().isStatic()) {
|
| - RenderObject* parent = last->parent();
|
| - if (!parent->normalChildNeedsLayout()) {
|
| - parent->setChildNeedsLayout(true, false);
|
| - if (parent != newRoot)
|
| - parent->markContainingBlocksForLayout(scheduleRelayout, newRoot);
|
| - }
|
| - }
|
| - if (o->m_posChildNeedsLayout)
|
| - return;
|
| - o->m_posChildNeedsLayout = true;
|
| - ASSERT(!o->isSetNeedsLayoutForbidden());
|
| - } else {
|
| - if (o->m_normalChildNeedsLayout)
|
| - return;
|
| - o->m_normalChildNeedsLayout = true;
|
| - ASSERT(!o->isSetNeedsLayoutForbidden());
|
| - }
|
| -
|
| - if (o == newRoot)
|
| - return;
|
| -
|
| - last = o;
|
| - if (scheduleRelayout && objectIsRelayoutBoundary(last))
|
| - break;
|
| - o = o->container();
|
| - }
|
| -
|
| - if (scheduleRelayout)
|
| - last->scheduleRelayout();
|
| -}
|
| -
|
| -} // namespace WebCore
|
| -
|
| -#ifndef NDEBUG
|
| -// Outside the WebCore namespace for ease of invocation from gdb.
|
| -void showTree(const WebCore::RenderObject*);
|
| -#endif
|
| -
|
| -#endif // RenderObject_h
|
| +/*
|
| + * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
|
| + * (C) 2000 Antti Koivisto (koivisto@kde.org)
|
| + * (C) 2000 Dirk Mueller (mueller@kde.org)
|
| + * (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
|
| + * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 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 RenderObject_h
|
| +#define RenderObject_h
|
| +
|
| +#include "CachedResourceClient.h"
|
| +#include "FloatQuad.h"
|
| +#include "Document.h"
|
| +#include "RenderObjectChildList.h"
|
| +#include "RenderStyle.h"
|
| +
|
| +namespace WebCore {
|
| +
|
| +class AnimationController;
|
| +class HitTestResult;
|
| +class InlineBox;
|
| +class InlineFlowBox;
|
| +class RenderInline;
|
| +class RenderBlock;
|
| +class RenderFlow;
|
| +class RenderLayer;
|
| +class VisiblePosition;
|
| +
|
| +/*
|
| + * The painting of a layer occurs in three distinct phases. Each phase involves
|
| + * a recursive descent into the layer's render objects. The first phase is the background phase.
|
| + * The backgrounds and borders of all blocks are painted. Inlines are not painted at all.
|
| + * Floats must paint above block backgrounds but entirely below inline content that can overlap them.
|
| + * In the foreground phase, all inlines are fully painted. Inline replaced elements will get all
|
| + * three phases invoked on them during this phase.
|
| + */
|
| +
|
| +enum PaintPhase {
|
| + PaintPhaseBlockBackground,
|
| + PaintPhaseChildBlockBackground,
|
| + PaintPhaseChildBlockBackgrounds,
|
| + PaintPhaseFloat,
|
| + PaintPhaseForeground,
|
| + PaintPhaseOutline,
|
| + PaintPhaseChildOutlines,
|
| + PaintPhaseSelfOutline,
|
| + PaintPhaseSelection,
|
| + PaintPhaseCollapsedTableBorders,
|
| + PaintPhaseTextClip,
|
| + PaintPhaseMask
|
| +};
|
| +
|
| +enum PaintRestriction {
|
| + PaintRestrictionNone,
|
| + PaintRestrictionSelectionOnly,
|
| + PaintRestrictionSelectionOnlyBlackText
|
| +};
|
| +
|
| +enum HitTestFilter {
|
| + HitTestAll,
|
| + HitTestSelf,
|
| + HitTestDescendants
|
| +};
|
| +
|
| +enum HitTestAction {
|
| + HitTestBlockBackground,
|
| + HitTestChildBlockBackground,
|
| + HitTestChildBlockBackgrounds,
|
| + HitTestFloat,
|
| + HitTestForeground
|
| +};
|
| +
|
| +// Values for verticalPosition.
|
| +const int PositionTop = -0x7fffffff;
|
| +const int PositionBottom = 0x7fffffff;
|
| +const int PositionUndefined = 0x80000000;
|
| +
|
| +#if ENABLE(DASHBOARD_SUPPORT)
|
| +struct DashboardRegionValue {
|
| + bool operator==(const DashboardRegionValue& o) const
|
| + {
|
| + return type == o.type && bounds == o.bounds && clip == o.clip && label == o.label;
|
| + }
|
| + bool operator!=(const DashboardRegionValue& o) const
|
| + {
|
| + return !(*this == o);
|
| + }
|
| +
|
| + String label;
|
| + IntRect bounds;
|
| + IntRect clip;
|
| + int type;
|
| +};
|
| +#endif
|
| +
|
| +// Base class for all rendering tree objects.
|
| +class RenderObject : public CachedResourceClient {
|
| + friend class RenderBlock;
|
| + friend class RenderBox;
|
| + friend class RenderLayer;
|
| + friend class RenderObjectChildList;
|
| + friend class RenderSVGContainer;
|
| +public:
|
| + // Anonymous objects should pass the document as their node, and they will then automatically be
|
| + // marked as anonymous in the constructor.
|
| + RenderObject(Node*);
|
| + virtual ~RenderObject();
|
| +
|
| + virtual const char* renderName() const = 0;
|
| +
|
| + RenderObject* parent() const { return m_parent; }
|
| + bool isDescendantOf(const RenderObject*) const;
|
| +
|
| + RenderObject* previousSibling() const { return m_previous; }
|
| + RenderObject* nextSibling() const { return m_next; }
|
| +
|
| + RenderObject* firstChild() const
|
| + {
|
| + if (const RenderObjectChildList* children = virtualChildren())
|
| + return children->firstChild();
|
| + return 0;
|
| + }
|
| + RenderObject* lastChild() const
|
| + {
|
| + if (const RenderObjectChildList* children = virtualChildren())
|
| + return children->lastChild();
|
| + return 0;
|
| + }
|
| + virtual RenderObjectChildList* virtualChildren() { return 0; }
|
| + virtual const RenderObjectChildList* virtualChildren() const { return 0; }
|
| +
|
| + RenderObject* nextInPreOrder() const;
|
| + RenderObject* nextInPreOrder(RenderObject* stayWithin) const;
|
| + RenderObject* nextInPreOrderAfterChildren() const;
|
| + RenderObject* nextInPreOrderAfterChildren(RenderObject* stayWithin) const;
|
| + RenderObject* previousInPreOrder() const;
|
| + RenderObject* childAt(unsigned) const;
|
| +
|
| + RenderObject* firstLeafChild() const;
|
| + RenderObject* lastLeafChild() const;
|
| +
|
| + // The following six functions are used when the render tree hierarchy changes to make sure layers get
|
| + // properly added and removed. Since containership can be implemented by any subclass, and since a hierarchy
|
| + // can contain a mixture of boxes and other object types, these functions need to be in the base class.
|
| + RenderLayer* enclosingLayer() const;
|
| +
|
| + void addLayers(RenderLayer* parentLayer, RenderObject* newObject);
|
| + void removeLayers(RenderLayer* parentLayer);
|
| + void moveLayers(RenderLayer* oldParent, RenderLayer* newParent);
|
| + RenderLayer* findNextLayer(RenderLayer* parentLayer, RenderObject* startPoint, bool checkParent = true);
|
| +
|
| +#if USE(ACCELERATED_COMPOSITING)
|
| + RenderLayer* enclosingCompositingLayer() const;
|
| +#endif
|
| +
|
| + // Convenience function for getting to the nearest enclosing box of a RenderObject.
|
| + RenderBox* enclosingBox() const;
|
| +
|
| + virtual IntRect getOverflowClipRect(int /*tx*/, int /*ty*/) { return IntRect(0, 0, 0, 0); }
|
| + virtual IntRect getClipRect(int /*tx*/, int /*ty*/) { return IntRect(0, 0, 0, 0); }
|
| + bool hasClip() { return isPositioned() && style()->hasClip(); }
|
| +
|
| + virtual int getBaselineOfFirstLineBox() const { return -1; }
|
| + virtual int getBaselineOfLastLineBox() const { return -1; }
|
| +
|
| + virtual bool isEmpty() const { return firstChild() == 0; }
|
| +
|
| + virtual bool isEdited() const { return false; }
|
| + virtual void setEdited(bool) { }
|
| +
|
| +#ifndef NDEBUG
|
| + void setHasAXObject(bool flag) { m_hasAXObject = flag; }
|
| + bool hasAXObject() const { return m_hasAXObject; }
|
| + bool isSetNeedsLayoutForbidden() const { return m_setNeedsLayoutForbidden; }
|
| + void setNeedsLayoutIsForbidden(bool flag) { m_setNeedsLayoutForbidden = flag; }
|
| +#endif
|
| +
|
| + // Obtains the nearest enclosing block (including this block) that contributes a first-line style to our inline
|
| + // children.
|
| + virtual RenderBlock* firstLineBlock() const;
|
| +
|
| + // Called when an object that was floating or positioned becomes a normal flow object
|
| + // again. We have to make sure the render tree updates as needed to accommodate the new
|
| + // normal flow object.
|
| + void handleDynamicFloatPositionChange();
|
| +
|
| + // This function is a convenience helper for creating an anonymous block that inherits its
|
| + // style from this RenderObject.
|
| + RenderBlock* createAnonymousBlock();
|
| +
|
| + // Whether or not a positioned element requires normal flow x/y to be computed
|
| + // to determine its position.
|
| + bool hasStaticX() const;
|
| + bool hasStaticY() const;
|
| + virtual void setStaticX(int /*staticX*/) { }
|
| + virtual void setStaticY(int /*staticY*/) { }
|
| + virtual int staticX() const { return 0; }
|
| + virtual int staticY() const { return 0; }
|
| +
|
| + // RenderObject tree manipulation
|
| + //////////////////////////////////////////
|
| + virtual bool canHaveChildren() const { return virtualChildren(); }
|
| + virtual bool isChildAllowed(RenderObject*, RenderStyle*) const { return true; }
|
| + virtual void addChild(RenderObject* newChild, RenderObject* beforeChild = 0);
|
| + virtual void addChildIgnoringContinuation(RenderObject* newChild, RenderObject* beforeChild = 0) { return addChild(newChild, beforeChild); }
|
| + virtual void removeChild(RenderObject*);
|
| + virtual bool createsAnonymousWrapper() const { return false; }
|
| + //////////////////////////////////////////
|
| +
|
| +protected:
|
| + //////////////////////////////////////////
|
| + // Helper functions. Dangerous to use!
|
| + void setPreviousSibling(RenderObject* previous) { m_previous = previous; }
|
| + void setNextSibling(RenderObject* next) { m_next = next; }
|
| + void setParent(RenderObject* parent) { m_parent = parent; }
|
| + //////////////////////////////////////////
|
| +private:
|
| + void addAbsoluteRectForLayer(IntRect& result);
|
| + void setLayerNeedsFullRepaint();
|
| +
|
| +public:
|
| +#ifndef NDEBUG
|
| + void showTreeForThis() const;
|
| +#endif
|
| +
|
| + static RenderObject* createObject(Node*, RenderStyle*);
|
| +
|
| + // Overloaded new operator. Derived classes must override operator new
|
| + // in order to allocate out of the RenderArena.
|
| + void* operator new(size_t, RenderArena*) throw();
|
| +
|
| + // Overridden to prevent the normal delete from being called.
|
| + void operator delete(void*, size_t);
|
| +
|
| +private:
|
| + // The normal operator new is disallowed on all render objects.
|
| + void* operator new(size_t) throw();
|
| +
|
| +public:
|
| + RenderArena* renderArena() const { return document()->renderArena(); }
|
| +
|
| + virtual bool isApplet() const { return false; }
|
| + virtual bool isBR() const { return false; }
|
| + virtual bool isBlockFlow() const { return false; }
|
| + virtual bool isCounter() const { return false; }
|
| + virtual bool isFieldset() const { return false; }
|
| + virtual bool isFrame() const { return false; }
|
| + virtual bool isFrameSet() const { return false; }
|
| + virtual bool isImage() const { return false; }
|
| + virtual bool isInlineBlockOrInlineTable() const { return false; }
|
| + virtual bool isListBox() const { return false; }
|
| + virtual bool isListItem() const { return false; }
|
| + virtual bool isListMarker() const { return false; }
|
| + virtual bool isMedia() const { return false; }
|
| + virtual bool isMenuList() const { return false; }
|
| + virtual bool isRenderBlock() const { return false; }
|
| + virtual bool isRenderImage() const { return false; }
|
| + virtual bool isRenderInline() const { return false; }
|
| + virtual bool isRenderPart() const { return false; }
|
| + virtual bool isRenderView() const { return false; }
|
| + virtual bool isSlider() const { return false; }
|
| + virtual bool isTable() const { return false; }
|
| + virtual bool isTableCell() const { return false; }
|
| + virtual bool isTableCol() const { return false; }
|
| + virtual bool isTableRow() const { return false; }
|
| + virtual bool isTableSection() const { return false; }
|
| + virtual bool isTextArea() const { return false; }
|
| + virtual bool isTextField() const { return false; }
|
| + virtual bool isWidget() const { return false; }
|
| +
|
| + bool isRoot() const { return document()->documentElement() == node(); }
|
| + bool isBody() const;
|
| + bool isHR() const;
|
| +
|
| + bool isHTMLMarquee() const;
|
| +
|
| + bool childrenInline() const { return m_childrenInline; }
|
| + void setChildrenInline(bool b = true) { m_childrenInline = b; }
|
| + bool hasColumns() const { return m_hasColumns; }
|
| + void setHasColumns(bool b = true) { m_hasColumns = b; }
|
| + bool cellWidthChanged() const { return m_cellWidthChanged; }
|
| + void setCellWidthChanged(bool b = true) { m_cellWidthChanged = b; }
|
| +
|
| +#if ENABLE(SVG)
|
| + virtual bool isSVGRoot() const { return false; }
|
| + virtual bool isSVGContainer() const { return false; }
|
| + virtual bool isSVGHiddenContainer() const { return false; }
|
| + virtual bool isRenderPath() const { return false; }
|
| + virtual bool isSVGText() const { return false; }
|
| +
|
| + virtual FloatRect relativeBBox(bool includeStroke = true) const;
|
| +
|
| + virtual TransformationMatrix localTransform() const;
|
| + virtual TransformationMatrix absoluteTransform() const;
|
| +#endif
|
| +
|
| + virtual bool isEditable() const;
|
| +
|
| + bool isAnonymous() const { return m_isAnonymous; }
|
| + void setIsAnonymous(bool b) { m_isAnonymous = b; }
|
| + bool isAnonymousBlock() const
|
| + {
|
| + return m_isAnonymous && style()->display() == BLOCK && style()->styleType() == NOPSEUDO && !isListMarker();
|
| + }
|
| + bool isInlineContinuation() const { return isInline() && isBox() && (element() ? element()->renderer() != this : false); }
|
| + bool isFloating() const { return m_floating; }
|
| + bool isPositioned() const { return m_positioned; } // absolute or fixed positioning
|
| + bool isRelPositioned() const { return m_relPositioned; } // relative positioning
|
| + bool isText() const { return m_isText; }
|
| + bool isBox() const { return m_isBox; }
|
| + bool isInline() const { return m_inline; } // inline object
|
| + bool isRunIn() const { return style()->display() == RUN_IN; } // run-in object
|
| + bool isDragging() const { return m_isDragging; }
|
| + bool isReplaced() const { return m_replaced; } // a "replaced" element (see CSS)
|
| +
|
| + bool hasLayer() const { return m_hasLayer; }
|
| +
|
| + bool hasBoxDecorations() const { return m_paintBackground; }
|
| + bool mustRepaintBackgroundOrBorder() const;
|
| +
|
| + bool needsLayout() const { return m_needsLayout || m_normalChildNeedsLayout || m_posChildNeedsLayout || m_needsPositionedMovementLayout; }
|
| + bool selfNeedsLayout() const { return m_needsLayout; }
|
| + bool needsPositionedMovementLayout() const { return m_needsPositionedMovementLayout; }
|
| + bool needsPositionedMovementLayoutOnly() const { return m_needsPositionedMovementLayout && !m_needsLayout && !m_normalChildNeedsLayout && !m_posChildNeedsLayout; }
|
| + bool posChildNeedsLayout() const { return m_posChildNeedsLayout; }
|
| + bool normalChildNeedsLayout() const { return m_normalChildNeedsLayout; }
|
| +
|
| + bool prefWidthsDirty() const { return m_prefWidthsDirty; }
|
| +
|
| + bool isSelectionBorder() const;
|
| +
|
| + bool hasOverflowClip() const { return m_hasOverflowClip; }
|
| + virtual bool hasControlClip() const { return false; }
|
| + virtual IntRect controlClipRect(int /*tx*/, int /*ty*/) const { return IntRect(); }
|
| +
|
| + bool hasTransform() const { return m_hasTransform; }
|
| + bool hasMask() const { return style() && style()->hasMask(); }
|
| +
|
| +public:
|
| + // The pseudo element style can be cached or uncached. Use the cached method if the pseudo element doesn't respect
|
| + // any pseudo classes (and therefore has no concept of changing state).
|
| + RenderStyle* getCachedPseudoStyle(PseudoId, RenderStyle* parentStyle = 0) const;
|
| + PassRefPtr<RenderStyle> getUncachedPseudoStyle(PseudoId, RenderStyle* parentStyle = 0) const;
|
| +
|
| + virtual void updateDragState(bool dragOn);
|
| +
|
| + RenderView* view() const;
|
| +
|
| + // don't even think about making this method virtual!
|
| + Node* element() const { return m_isAnonymous ? 0 : m_node; }
|
| + Document* document() const { return m_node->document(); }
|
| + void setNode(Node* node) { m_node = node; }
|
| + Node* node() const { return m_node; }
|
| +
|
| + bool hasOutlineAnnotation() const;
|
| + bool hasOutline() const { return style()->hasOutline() || hasOutlineAnnotation(); }
|
| +
|
| + /**
|
| + * returns the object containing this one. can be different from parent for
|
| + * positioned elements
|
| + */
|
| + RenderObject* container() const;
|
| + virtual RenderObject* hoverAncestor() const { return parent(); }
|
| +
|
| + void markContainingBlocksForLayout(bool scheduleRelayout = true, RenderObject* newRoot = 0);
|
| + void setNeedsLayout(bool b, bool markParents = true);
|
| + void setChildNeedsLayout(bool b, bool markParents = true);
|
| + void setNeedsPositionedMovementLayout();
|
| + void setPrefWidthsDirty(bool, bool markParents = true);
|
| + void invalidateContainerPrefWidths();
|
| +
|
| + void setNeedsLayoutAndPrefWidthsRecalc()
|
| + {
|
| + setNeedsLayout(true);
|
| + setPrefWidthsDirty(true);
|
| + }
|
| +
|
| + void setPositioned(bool b = true) { m_positioned = b; }
|
| + void setRelPositioned(bool b = true) { m_relPositioned = b; }
|
| + void setFloating(bool b = true) { m_floating = b; }
|
| + void setInline(bool b = true) { m_inline = b; }
|
| + void setHasBoxDecorations(bool b = true) { m_paintBackground = b; }
|
| + void setIsText() { m_isText = true; }
|
| + void setIsBox() { m_isBox = true; }
|
| + void setReplaced(bool b = true) { m_replaced = b; }
|
| + void setHasOverflowClip(bool b = true) { m_hasOverflowClip = b; }
|
| + void setHasLayer(bool b = true) { m_hasLayer = b; }
|
| + void setHasTransform(bool b = true) { m_hasTransform = b; }
|
| + void setHasReflection(bool b = true) { m_hasReflection = b; }
|
| +
|
| + void scheduleRelayout();
|
| +
|
| + void updateFillImages(const FillLayer*, const FillLayer*);
|
| + void updateImage(StyleImage*, StyleImage*);
|
| +
|
| + virtual InlineBox* createInlineBox(bool makePlaceHolderBox, bool isRootLineBox, bool isOnlyRun = false);
|
| + virtual void dirtyLineBoxes(bool fullLayout, bool isRootLineBox = false);
|
| +
|
| + // For inline replaced elements, this function returns the inline box that owns us. Enables
|
| + // the replaced RenderObject to quickly determine what line it is contained on and to easily
|
| + // iterate over structures on the line.
|
| + virtual InlineBox* inlineBoxWrapper() const;
|
| + virtual void setInlineBoxWrapper(InlineBox*);
|
| + virtual void deleteLineBoxWrapper();
|
| +
|
| + // for discussion of lineHeight see CSS2 spec
|
| + virtual int lineHeight(bool firstLine, bool isRootLineBox = false) const;
|
| + // for the vertical-align property of inline elements
|
| + // the difference between this objects baseline position and the lines baseline position.
|
| + virtual int verticalPositionHint(bool firstLine) const;
|
| + // the offset of baseline from the top of the object.
|
| + virtual int baselinePosition(bool firstLine, bool isRootLineBox = false) const;
|
| +
|
| + /*
|
| + * Paint the object and its children, clipped by (x|y|w|h).
|
| + * (tx|ty) is the calculated position of the parent
|
| + */
|
| + struct PaintInfo {
|
| + PaintInfo(GraphicsContext* newContext, const IntRect& newRect, PaintPhase newPhase, bool newForceBlackText,
|
| + RenderObject* newPaintingRoot, ListHashSet<RenderInline*>* newOutlineObjects)
|
| + : context(newContext)
|
| + , rect(newRect)
|
| + , phase(newPhase)
|
| + , forceBlackText(newForceBlackText)
|
| + , paintingRoot(newPaintingRoot)
|
| + , outlineObjects(newOutlineObjects)
|
| + {
|
| + }
|
| +
|
| + GraphicsContext* context;
|
| + IntRect rect;
|
| + PaintPhase phase;
|
| + bool forceBlackText;
|
| + RenderObject* paintingRoot; // used to draw just one element and its visual kids
|
| + ListHashSet<RenderInline*>* outlineObjects; // used to list outlines that should be painted by a block with inline children
|
| + };
|
| +
|
| + virtual void paint(PaintInfo&, int tx, int ty);
|
| + void paintBorder(GraphicsContext*, int tx, int ty, int w, int h, const RenderStyle*, bool begin = true, bool end = true);
|
| + bool paintNinePieceImage(GraphicsContext*, int tx, int ty, int w, int h, const RenderStyle*, const NinePieceImage&, CompositeOperator = CompositeSourceOver);
|
| + void paintBoxShadow(GraphicsContext*, int tx, int ty, int w, int h, const RenderStyle*, bool begin = true, bool end = true);
|
| +
|
| + // RenderBox implements this.
|
| + virtual void paintBoxDecorations(PaintInfo&, int /*tx*/, int /*ty*/) { }
|
| + virtual void paintMask(PaintInfo&, int /*tx*/, int /*ty*/) { }
|
| + virtual void paintFillLayerExtended(const PaintInfo&, const Color&, const FillLayer*,
|
| + int /*clipY*/, int /*clipH*/, int /*tx*/, int /*ty*/, int /*width*/, int /*height*/,
|
| + InlineFlowBox* = 0, CompositeOperator = CompositeSourceOver) { }
|
| +
|
| + /*
|
| + * Calculates the actual width of the object (only for non inline
|
| + * objects)
|
| + */
|
| + virtual void calcWidth() { }
|
| +
|
| + // Recursive function that computes the size and position of this object and all its descendants.
|
| + virtual void layout();
|
| +
|
| + /* This function performs a layout only if one is needed. */
|
| + void layoutIfNeeded() { if (needsLayout()) layout(); }
|
| +
|
| + // Called when a positioned object moves but doesn't necessarily change size. A simplified layout is attempted
|
| + // that just updates the object's position. If the size does change, the object remains dirty.
|
| + virtual void tryLayoutDoingPositionedMovementOnly() { }
|
| +
|
| + // used for element state updates that cannot be fixed with a
|
| + // repaint and do not need a relayout
|
| + virtual void updateFromElement() { }
|
| +
|
| + virtual void updateWidgetPosition();
|
| +
|
| +#if ENABLE(DASHBOARD_SUPPORT)
|
| + virtual void addDashboardRegions(Vector<DashboardRegionValue>&);
|
| + void collectDashboardRegions(Vector<DashboardRegionValue>&);
|
| +#endif
|
| +
|
| + bool hitTest(const HitTestRequest&, HitTestResult&, const IntPoint&, int tx, int ty, HitTestFilter = HitTestAll);
|
| + virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty, HitTestAction);
|
| + virtual void updateHitTestResult(HitTestResult&, const IntPoint&);
|
| +
|
| + virtual VisiblePosition positionForCoordinates(int x, int y);
|
| + VisiblePosition positionForPoint(const IntPoint&);
|
| +
|
| + virtual void dirtyLinesFromChangedChild(RenderObject*);
|
| +
|
| + // Called to update a style that is allowed to trigger animations.
|
| + // FIXME: Right now this will typically be called only when updating happens from the DOM on explicit elements.
|
| + // We don't yet handle generated content animation such as first-letter or before/after (we'll worry about this later).
|
| + void setAnimatableStyle(PassRefPtr<RenderStyle>);
|
| +
|
| + // Set the style of the object and update the state of the object accordingly.
|
| + virtual void setStyle(PassRefPtr<RenderStyle>);
|
| +
|
| + // Updates only the local style ptr of the object. Does not update the state of the object,
|
| + // and so only should be called when the style is known not to have changed (or from setStyle).
|
| + void setStyleInternal(PassRefPtr<RenderStyle>);
|
| +
|
| + // returns the containing block level element for this element.
|
| + RenderBlock* containingBlock() const;
|
| +
|
| + // return just the width of the containing block
|
| + virtual int containingBlockWidth() const;
|
| + // return just the height of the containing block
|
| + virtual int containingBlockHeight() const;
|
| +
|
| + // used by flexible boxes to impose a flexed width/height override
|
| + virtual int overrideSize() const { return 0; }
|
| + virtual int overrideWidth() const { return 0; }
|
| + virtual int overrideHeight() const { return 0; }
|
| + virtual void setOverrideSize(int /*overrideSize*/) { }
|
| +
|
| + // Convert the given local point to absolute coordinates
|
| + // FIXME: Temporary. If useTransforms is true, take transforms into account. Eventually localToAbsolute() will always be transform-aware.
|
| + virtual FloatPoint localToAbsolute(FloatPoint localPoint = FloatPoint(), bool fixed = false, bool useTransforms = false) const;
|
| + virtual FloatPoint absoluteToLocal(FloatPoint, bool fixed = false, bool useTransforms = false) const;
|
| +
|
| + // Convert a local quad to absolute coordinates, taking transforms into account.
|
| + FloatQuad localToAbsoluteQuad(const FloatQuad& quad, bool fixed = false) const
|
| + {
|
| + return localToContainerQuad(quad, 0, fixed);
|
| + }
|
| + // Convert a local quad into the coordinate system of container, taking transforms into account.
|
| + virtual FloatQuad localToContainerQuad(const FloatQuad&, RenderBox* repaintContainer, bool fixed = false) const;
|
| +
|
| + // Return the offset from the container() renderer (excluding transforms)
|
| + virtual IntSize offsetFromContainer(RenderObject*) const;
|
| +
|
| + virtual void absoluteRectsForRange(Vector<IntRect>&, unsigned startOffset = 0, unsigned endOffset = UINT_MAX, bool useSelectionHeight = false);
|
| +
|
| + virtual void absoluteRects(Vector<IntRect>&, int, int, bool = true) { }
|
| + // FIXME: useTransforms should go away eventually
|
| + IntRect absoluteBoundingBoxRect(bool useTransforms = false);
|
| +
|
| + // Build an array of quads in absolute coords for line boxes
|
| + virtual void absoluteQuadsForRange(Vector<FloatQuad>&, unsigned startOffset = 0, unsigned endOffset = UINT_MAX, bool useSelectionHeight = false);
|
| + virtual void absoluteQuads(Vector<FloatQuad>&, bool /*topLevel*/ = true) { }
|
| +
|
| + // the rect that will be painted if this object is passed as the paintingRoot
|
| + IntRect paintingRootRect(IntRect& topLevelRect);
|
| +
|
| + virtual int minPrefWidth() const { return 0; }
|
| + virtual int maxPrefWidth() const { return 0; }
|
| +
|
| + RenderStyle* style() const { return m_style.get(); }
|
| + RenderStyle* firstLineStyle() const { return document()->usesFirstLineRules() ? firstLineStyleSlowCase() : style(); }
|
| + RenderStyle* style(bool firstLine) const { return firstLine ? firstLineStyle() : style(); }
|
| +
|
| + // Anonymous blocks that are part of of a continuation chain will return their inline continuation's outline style instead.
|
| + // This is typically only relevant when repainting.
|
| + virtual RenderStyle* outlineStyleForRepaint() const { return style(); }
|
| +
|
| + void getTextDecorationColors(int decorations, Color& underline, Color& overline,
|
| + Color& linethrough, bool quirksMode = false);
|
| +
|
| + enum BorderSide {
|
| + BSTop,
|
| + BSBottom,
|
| + BSLeft,
|
| + BSRight
|
| + };
|
| +
|
| + void drawBorderArc(GraphicsContext*, int x, int y, float thickness, IntSize radius, int angleStart,
|
| + int angleSpan, BorderSide, Color, const Color& textcolor, EBorderStyle, bool firstCorner);
|
| + void drawBorder(GraphicsContext*, int x1, int y1, int x2, int y2, BorderSide,
|
| + Color, const Color& textcolor, EBorderStyle, int adjbw1, int adjbw2);
|
| +
|
| + // Return the RenderBox in the container chain which is responsible for painting this object, or 0
|
| + // if painting is root-relative. This is the container that should be passed to the 'forRepaint'
|
| + // methods.
|
| + RenderBox* containerForRepaint() const;
|
| + // Actually do the repaint of rect r for this object which has been computed in the coordinate space
|
| + // of repaintContainer. If repaintContainer is 0, repaint via the view.
|
| + void repaintUsingContainer(RenderBox* repaintContainer, const IntRect& r, bool immediate = false);
|
| +
|
| + // Repaint the entire object. Called when, e.g., the color of a border changes, or when a border
|
| + // style changes.
|
| + void repaint(bool immediate = false);
|
| +
|
| + // Repaint a specific subrectangle within a given object. The rect |r| is in the object's coordinate space.
|
| + void repaintRectangle(const IntRect&, bool immediate = false);
|
| +
|
| + // Repaint only if our old bounds and new bounds are different.
|
| + bool repaintAfterLayoutIfNeeded(RenderBox* repaintContainer, const IntRect& oldBounds, const IntRect& oldOutlineBox);
|
| +
|
| + // Repaint only if the object moved.
|
| + virtual void repaintDuringLayoutIfMoved(const IntRect& rect);
|
| +
|
| + // Called to repaint a block's floats.
|
| + virtual void repaintOverhangingFloats(bool paintAllDescendants = false);
|
| +
|
| + bool checkForRepaintDuringLayout() const;
|
| +
|
| + // Returns the rect that should be repainted whenever this object changes. The rect is in the view's
|
| + // coordinate space. This method deals with outlines and overflow.
|
| + IntRect absoluteClippedOverflowRect()
|
| + {
|
| + return clippedOverflowRectForRepaint(0);
|
| + }
|
| + virtual IntRect clippedOverflowRectForRepaint(RenderBox* repaintContainer);
|
| + virtual IntRect rectWithOutlineForRepaint(RenderBox* repaintContainer, int outlineWidth);
|
| +
|
| + // Given a rect in the object's coordinate space, compute a rect suitable for repainting
|
| + // that rect in view coordinates.
|
| + void computeAbsoluteRepaintRect(IntRect& r, bool fixed = false)
|
| + {
|
| + return computeRectForRepaint(0, r, fixed);
|
| + }
|
| + // Given a rect in the object's coordinate space, compute a rect suitable for repainting
|
| + // that rect in the coordinate space of repaintContainer.
|
| + virtual void computeRectForRepaint(RenderBox* repaintContainer, IntRect&, bool fixed = false);
|
| +
|
| + virtual unsigned int length() const { return 1; }
|
| +
|
| + bool isFloatingOrPositioned() const { return (isFloating() || isPositioned()); }
|
| + virtual bool containsFloats() { return false; }
|
| + virtual bool containsFloat(RenderObject*) { return false; }
|
| + virtual bool hasOverhangingFloats() { return false; }
|
| +
|
| + virtual bool avoidsFloats() const;
|
| + bool shrinkToAvoidFloats() const;
|
| +
|
| + // positioning of inline children (bidi)
|
| + virtual void position(InlineBox*) { }
|
| +
|
| + bool isTransparent() const { return style()->opacity() < 1.0f; }
|
| + float opacity() const { return style()->opacity(); }
|
| +
|
| + bool hasReflection() const { return m_hasReflection; }
|
| +
|
| + // Applied as a "slop" to dirty rect checks during the outline painting phase's dirty-rect checks.
|
| + int maximalOutlineSize(PaintPhase) const;
|
| +
|
| + void setHasMarkupTruncation(bool b = true) { m_hasMarkupTruncation = b; }
|
| + bool hasMarkupTruncation() const { return m_hasMarkupTruncation; }
|
| +
|
| + enum SelectionState {
|
| + SelectionNone, // The object is not selected.
|
| + SelectionStart, // The object either contains the start of a selection run or is the start of a run
|
| + SelectionInside, // The object is fully encompassed by a selection run
|
| + SelectionEnd, // The object either contains the end of a selection run or is the end of a run
|
| + SelectionBoth // The object contains an entire run or is the sole selected object in that run
|
| + };
|
| +
|
| + // The current selection state for an object. For blocks, the state refers to the state of the leaf
|
| + // descendants (as described above in the SelectionState enum declaration).
|
| + SelectionState selectionState() const { return static_cast<SelectionState>(m_selectionState);; }
|
| +
|
| + // Sets the selection state for an object.
|
| + virtual void setSelectionState(SelectionState state) { m_selectionState = state; }
|
| +
|
| + // A single rectangle that encompasses all of the selected objects within this object. Used to determine the tightest
|
| + // possible bounding box for the selection.
|
| + IntRect selectionRect(bool clipToVisibleContent = true) { return selectionRectForRepaint(0, clipToVisibleContent); }
|
| + virtual IntRect selectionRectForRepaint(RenderBox* /*repaintContainer*/, bool /*clipToVisibleContent*/ = true) { return IntRect(); }
|
| +
|
| + // Whether or not an object can be part of the leaf elements of the selection.
|
| + virtual bool canBeSelectionLeaf() const { return false; }
|
| +
|
| + // Whether or not a block has selected children.
|
| + bool hasSelectedChildren() const { return m_selectionState != SelectionNone; }
|
| +
|
| + // Obtains the selection colors that should be used when painting a selection.
|
| + Color selectionBackgroundColor() const;
|
| + Color selectionForegroundColor() const;
|
| +
|
| + // Whether or not a given block needs to paint selection gaps.
|
| + virtual bool shouldPaintSelectionGaps() const { return false; }
|
| +
|
| + Node* draggableNode(bool dhtmlOK, bool uaOK, int x, int y, bool& dhtmlWillDrag) const;
|
| +
|
| + /**
|
| + * Returns the local coordinates of the caret within this render object.
|
| + * @param caretOffset zero-based offset determining position within the render object.
|
| + * @param extraWidthToEndOfLine optional out arg to give extra width to end of line -
|
| + * useful for character range rect computations
|
| + */
|
| + virtual IntRect localCaretRect(InlineBox*, int caretOffset, int* extraWidthToEndOfLine = 0);
|
| +
|
| + virtual int lowestPosition(bool /*includeOverflowInterior*/ = true, bool /*includeSelf*/ = true) const { return 0; }
|
| + virtual int rightmostPosition(bool /*includeOverflowInterior*/ = true, bool /*includeSelf*/ = true) const { return 0; }
|
| + virtual int leftmostPosition(bool /*includeOverflowInterior*/ = true, bool /*includeSelf*/ = true) const { return 0; }
|
| +
|
| + virtual void calcVerticalMargins() { }
|
| + bool isTopMarginQuirk() const { return m_topMarginQuirk; }
|
| + bool isBottomMarginQuirk() const { return m_bottomMarginQuirk; }
|
| + void setTopMarginQuirk(bool b = true) { m_topMarginQuirk = b; }
|
| + void setBottomMarginQuirk(bool b = true) { m_bottomMarginQuirk = b; }
|
| +
|
| + // When performing a global document tear-down, the renderer of the document is cleared. We use this
|
| + // as a hook to detect the case of document destruction and don't waste time doing unnecessary work.
|
| + bool documentBeingDestroyed() const;
|
| +
|
| + virtual void destroy();
|
| +
|
| + // Virtual function helpers for CSS3 Flexible Box Layout
|
| + virtual bool isFlexibleBox() const { return false; }
|
| + virtual bool isFlexingChildren() const { return false; }
|
| + virtual bool isStretchingChildren() const { return false; }
|
| +
|
| + virtual int caretMinOffset() const;
|
| + virtual int caretMaxOffset() const;
|
| + virtual unsigned caretMaxRenderedOffset() const;
|
| +
|
| + virtual int previousOffset(int current) const;
|
| + virtual int nextOffset(int current) const;
|
| +
|
| + virtual void imageChanged(CachedImage*, const IntRect* = 0);
|
| + virtual void imageChanged(WrappedImagePtr, const IntRect* = 0) { }
|
| + virtual bool willRenderImage(CachedImage*);
|
| +
|
| + virtual void selectionStartEnd(int& spos, int& epos) const;
|
| +
|
| + RenderObject* paintingRootForChildren(PaintInfo& paintInfo) const
|
| + {
|
| + // if we're the painting root, kids draw normally, and see root of 0
|
| + return (!paintInfo.paintingRoot || paintInfo.paintingRoot == this) ? 0 : paintInfo.paintingRoot;
|
| + }
|
| +
|
| + bool shouldPaintWithinRoot(PaintInfo& paintInfo) const
|
| + {
|
| + return !paintInfo.paintingRoot || paintInfo.paintingRoot == this;
|
| + }
|
| +
|
| + bool hasOverrideSize() const { return m_hasOverrideSize; }
|
| + void setHasOverrideSize(bool b) { m_hasOverrideSize = b; }
|
| +
|
| + void remove() { if (parent()) parent()->removeChild(this); }
|
| +
|
| + void invalidateVerticalPosition() { m_verticalPosition = PositionUndefined; }
|
| +
|
| + virtual void capsLockStateMayHaveChanged() { }
|
| +
|
| + AnimationController* animation() const;
|
| +
|
| + bool visibleToHitTesting() const { return style()->visibility() == VISIBLE && style()->pointerEvents() != PE_NONE; }
|
| +
|
| + virtual void addFocusRingRects(GraphicsContext*, int /*tx*/, int /*ty*/) { };
|
| +
|
| + IntRect absoluteOutlineBounds() const
|
| + {
|
| + return outlineBoundsForRepaint(0);
|
| + }
|
| +
|
| +protected:
|
| + // Overrides should call the superclass at the end
|
| + virtual void styleWillChange(StyleDifference, const RenderStyle* newStyle);
|
| + // Overrides should call the superclass at the start
|
| + virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);
|
| +
|
| + virtual void printBoxDecorations(GraphicsContext*, int /*x*/, int /*y*/, int /*w*/, int /*h*/, int /*tx*/, int /*ty*/) { }
|
| +
|
| + void paintOutline(GraphicsContext*, int tx, int ty, int w, int h, const RenderStyle*);
|
| + void addPDFURLRect(GraphicsContext*, const IntRect&);
|
| +
|
| + virtual IntRect viewRect() const;
|
| +
|
| + int getVerticalPosition(bool firstLine) const;
|
| +
|
| + void adjustRectForOutlineAndShadow(IntRect&) const;
|
| +
|
| + void arenaDelete(RenderArena*, void* objectBase);
|
| +
|
| + virtual IntRect outlineBoundsForRepaint(RenderBox* /*repaintContainer*/) const { return IntRect(); }
|
| +
|
| + class LayoutRepainter {
|
| + public:
|
| + LayoutRepainter(RenderObject& object, bool checkForRepaint, const IntRect* oldBounds = 0)
|
| + : m_object(object)
|
| + , m_repaintContainer(0)
|
| + , m_checkForRepaint(checkForRepaint)
|
| + {
|
| + if (m_checkForRepaint) {
|
| + m_repaintContainer = m_object.containerForRepaint();
|
| + m_oldBounds = oldBounds ? *oldBounds : m_object.clippedOverflowRectForRepaint(m_repaintContainer);
|
| + m_oldOutlineBox = m_object.outlineBoundsForRepaint(m_repaintContainer);
|
| + }
|
| + }
|
| +
|
| + // Return true if it repainted.
|
| + bool repaintAfterLayout()
|
| + {
|
| + return m_checkForRepaint ? m_object.repaintAfterLayoutIfNeeded(m_repaintContainer, m_oldBounds, m_oldOutlineBox) : false;
|
| + }
|
| +
|
| + bool checkForRepaint() const { return m_checkForRepaint; }
|
| +
|
| + private:
|
| + RenderObject& m_object;
|
| + RenderBox* m_repaintContainer;
|
| + IntRect m_oldBounds;
|
| + IntRect m_oldOutlineBox;
|
| + bool m_checkForRepaint;
|
| + };
|
| +
|
| +private:
|
| + RenderStyle* firstLineStyleSlowCase() const;
|
| +
|
| + RefPtr<RenderStyle> m_style;
|
| +
|
| + Node* m_node;
|
| +
|
| + RenderObject* m_parent;
|
| + RenderObject* m_previous;
|
| + RenderObject* m_next;
|
| +
|
| +#ifndef NDEBUG
|
| + bool m_hasAXObject;
|
| + bool m_setNeedsLayoutForbidden : 1;
|
| +#endif
|
| + mutable int m_verticalPosition;
|
| +
|
| + // 31 bits have been used here. Count the bits before you add any and update the comment
|
| + // with the new total.
|
| + bool m_needsLayout : 1;
|
| + bool m_needsPositionedMovementLayout :1;
|
| + bool m_normalChildNeedsLayout : 1;
|
| + bool m_posChildNeedsLayout : 1;
|
| + bool m_prefWidthsDirty : 1;
|
| + bool m_floating : 1;
|
| +
|
| + bool m_positioned : 1;
|
| + bool m_relPositioned : 1;
|
| + bool m_paintBackground : 1; // if the box has something to paint in the
|
| + // background painting phase (background, border, etc)
|
| +
|
| + bool m_isAnonymous : 1;
|
| + bool m_isText : 1;
|
| + bool m_isBox : 1;
|
| + bool m_inline : 1;
|
| + bool m_replaced : 1;
|
| + bool m_isDragging : 1;
|
| +
|
| + bool m_hasLayer : 1;
|
| + bool m_hasOverflowClip : 1;
|
| + bool m_hasTransform : 1;
|
| + bool m_hasReflection : 1;
|
| +
|
| + bool m_hasOverrideSize : 1;
|
| +
|
| +public:
|
| + bool m_hasCounterNodeMap : 1;
|
| + bool m_everHadLayout : 1;
|
| +
|
| +private:
|
| + // These bitfields are moved here from subclasses to pack them together
|
| + // from RenderBlock
|
| + bool m_childrenInline : 1;
|
| + bool m_topMarginQuirk : 1;
|
| + bool m_bottomMarginQuirk : 1;
|
| + bool m_hasMarkupTruncation : 1;
|
| + unsigned m_selectionState : 3; // SelectionState
|
| + bool m_hasColumns : 1;
|
| +
|
| + // from RenderTableCell
|
| + bool m_cellWidthChanged : 1;
|
| +
|
| +private:
|
| + // Store state between styleWillChange and styleDidChange
|
| + static bool s_affectsParentBlock;
|
| +};
|
| +
|
| +inline bool RenderObject::documentBeingDestroyed() const
|
| +{
|
| + return !document()->renderer();
|
| +}
|
| +
|
| +inline void RenderObject::setNeedsLayout(bool b, bool markParents)
|
| +{
|
| + bool alreadyNeededLayout = m_needsLayout;
|
| + m_needsLayout = b;
|
| + if (b) {
|
| + ASSERT(!isSetNeedsLayoutForbidden());
|
| + if (!alreadyNeededLayout) {
|
| + if (markParents)
|
| + markContainingBlocksForLayout();
|
| + if (hasLayer())
|
| + setLayerNeedsFullRepaint();
|
| + }
|
| + } else {
|
| + m_everHadLayout = true;
|
| + m_posChildNeedsLayout = false;
|
| + m_normalChildNeedsLayout = false;
|
| + m_needsPositionedMovementLayout = false;
|
| + }
|
| +}
|
| +
|
| +inline void RenderObject::setChildNeedsLayout(bool b, bool markParents)
|
| +{
|
| + bool alreadyNeededLayout = m_normalChildNeedsLayout;
|
| + m_normalChildNeedsLayout = b;
|
| + if (b) {
|
| + ASSERT(!isSetNeedsLayoutForbidden());
|
| + if (!alreadyNeededLayout && markParents)
|
| + markContainingBlocksForLayout();
|
| + } else {
|
| + m_posChildNeedsLayout = false;
|
| + m_normalChildNeedsLayout = false;
|
| + m_needsPositionedMovementLayout = false;
|
| + }
|
| +}
|
| +
|
| +inline void RenderObject::setNeedsPositionedMovementLayout()
|
| +{
|
| + bool alreadyNeededLayout = needsLayout();
|
| + m_needsPositionedMovementLayout = true;
|
| + if (!alreadyNeededLayout) {
|
| + markContainingBlocksForLayout();
|
| + if (hasLayer())
|
| + setLayerNeedsFullRepaint();
|
| + }
|
| +}
|
| +
|
| +inline bool objectIsRelayoutBoundary(const RenderObject *obj)
|
| +{
|
| + // FIXME: In future it may be possible to broaden this condition in order to improve performance.
|
| + // Table cells are excluded because even when their CSS height is fixed, their height()
|
| + // may depend on their contents.
|
| + return obj->isTextField() || obj->isTextArea()
|
| + || obj->hasOverflowClip() && !obj->style()->width().isIntrinsicOrAuto() && !obj->style()->height().isIntrinsicOrAuto() && !obj->style()->height().isPercent() && !obj->isTableCell()
|
| +#if ENABLE(SVG)
|
| + || obj->isSVGRoot()
|
| +#endif
|
| + ;
|
| +}
|
| +
|
| +inline void RenderObject::markContainingBlocksForLayout(bool scheduleRelayout, RenderObject* newRoot)
|
| +{
|
| + ASSERT(!scheduleRelayout || !newRoot);
|
| +
|
| + RenderObject* o = container();
|
| + RenderObject* last = this;
|
| +
|
| + while (o) {
|
| + if (!last->isText() && (last->style()->position() == FixedPosition || last->style()->position() == AbsolutePosition)) {
|
| + if (last->hasStaticY()) {
|
| + RenderObject* parent = last->parent();
|
| + if (!parent->normalChildNeedsLayout()) {
|
| + parent->setChildNeedsLayout(true, false);
|
| + if (parent != newRoot)
|
| + parent->markContainingBlocksForLayout(scheduleRelayout, newRoot);
|
| + }
|
| + }
|
| + if (o->m_posChildNeedsLayout)
|
| + return;
|
| + o->m_posChildNeedsLayout = true;
|
| + ASSERT(!o->isSetNeedsLayoutForbidden());
|
| + } else {
|
| + if (o->m_normalChildNeedsLayout)
|
| + return;
|
| + o->m_normalChildNeedsLayout = true;
|
| + ASSERT(!o->isSetNeedsLayoutForbidden());
|
| + }
|
| +
|
| + if (o == newRoot)
|
| + return;
|
| +
|
| + last = o;
|
| + if (scheduleRelayout && objectIsRelayoutBoundary(last))
|
| + break;
|
| + o = o->container();
|
| + }
|
| +
|
| + if (scheduleRelayout)
|
| + last->scheduleRelayout();
|
| +}
|
| +
|
| +} // namespace WebCore
|
| +
|
| +#ifndef NDEBUG
|
| +// Outside the WebCore namespace for ease of invocation from gdb.
|
| +void showTree(const WebCore::RenderObject*);
|
| +#endif
|
| +
|
| +#endif // RenderObject_h
|
|
|
Chromium Code Reviews
Issue 21165:
Revert the merge. Mac build is mysteriously broken. (Closed)
Base URL: svn://chrome-svn/chrome/trunk/src/