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248 lines
8.5 KiB
C++
248 lines
8.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS"
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* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
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* the License for the specific language governing rights and limitations
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* under the License.
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*
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* The Original Code is Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is Netscape Communications
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* Corporation. Portions created by Netscape are Copyright (C) 1998
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* Netscape Communications Corporation. All Rights Reserved.
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*/
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#ifndef nsBlockFrame_h___
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#define nsBlockFrame_h___
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#include "nsHTMLContainerFrame.h"
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class nsTextRun;
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class BulletFrame;
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struct LineData;
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struct nsBlockReflowState;
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/**
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* Child list name indices
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* @see #GetAdditionalChildListName()
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*/
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#define NS_BLOCK_FRAME_FLOATER_LIST_INDEX 0
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#define NS_BLOCK_FRAME_BULLET_LIST_INDEX 1
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#define NS_BLOCK_FRAME_LAST_LIST_INDEX NS_BLOCK_FRAME_BULLET_LIST_INDEX
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#define nsBlockFrameSuper nsHTMLContainerFrame
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class nsBlockFrame : public nsBlockFrameSuper
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{
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public:
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nsBlockFrame(nsIContent* aContent, nsIFrame* aParent);
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~nsBlockFrame();
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// nsISupports
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NS_IMETHOD QueryInterface(const nsIID& aIID, void** aInstancePtr);
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// nsIFrame
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NS_IMETHOD SetInitialChildList(nsIPresContext& aPresContext,
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nsIAtom* aListName,
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nsIFrame* aChildList);
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NS_IMETHOD ReResolveStyleContext(nsIPresContext* aPresContext,
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nsIStyleContext* aParentContext);
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NS_IMETHOD FirstChild(nsIAtom* aListName, nsIFrame*& aFirstChild) const;
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NS_IMETHOD GetAdditionalChildListName(PRInt32 aIndex,
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nsIAtom*& aListName) const;
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NS_IMETHOD DeleteFrame(nsIPresContext& aPresContext);
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NS_IMETHOD IsSplittable(nsSplittableType& aIsSplittable) const;
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NS_IMETHOD CreateContinuingFrame(nsIPresContext& aPresContext,
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nsIFrame* aParent,
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nsIStyleContext* aStyleContext,
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nsIFrame*& aContinuingFrame);
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NS_IMETHOD Paint(nsIPresContext& aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect);
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NS_IMETHOD IsPercentageBase(PRBool& aBase) const;
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NS_IMETHOD List(FILE* out, PRInt32 aIndent, nsIListFilter *aFilter) const;
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NS_IMETHOD GetFrameName(nsString& aResult) const;
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NS_IMETHOD VerifyTree() const;
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NS_IMETHOD GetFrameForPoint(const nsPoint& aPoint, nsIFrame** aFrame);
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// nsIHTMLReflow
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NS_IMETHOD Reflow(nsIPresContext& aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus);
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NS_IMETHOD MoveInSpaceManager(nsIPresContext& aPresContext,
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nsISpaceManager* aSpaceManager,
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nscoord aDeltaX, nscoord aDeltaY);
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// nsBlockFrame
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void TakeRunInFrames(nsBlockFrame* aRunInFrame);
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PRBool ShouldPlaceBullet(LineData* aLine);
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void PlaceBullet(nsBlockReflowState& aState,
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nscoord aMaxAscent,
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nscoord aTopMargin);
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#ifdef DO_SELECTION
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NS_IMETHOD HandleEvent(nsIPresContext& aPresContext,
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nsGUIEvent* aEvent,
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nsEventStatus& aEventStatus);
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NS_IMETHOD HandleDrag(nsIPresContext& aPresContext,
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nsGUIEvent* aEvent,
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nsEventStatus& aEventStatus);
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nsIFrame * FindHitFrame(nsBlockFrame * aBlockFrame,
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const nscoord aX, const nscoord aY,
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const nsPoint & aPoint);
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#endif
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virtual PRBool DeleteChildsNextInFlow(nsIPresContext& aPresContext,
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nsIFrame* aNextInFlow);
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void RestoreStyleFor(nsIPresContext& aPresContext, nsIFrame* aFrame);
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void SetFlags(PRUint32 aFlags) {
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mFlags = aFlags;
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}
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void RecoverLineMargins(nsBlockReflowState& aState,
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LineData* aPrevLine,
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nscoord& aTopMarginResult,
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nscoord& aBottomMarginResult);
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PRUintn CalculateMargins(nsBlockReflowState& aState,
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LineData* aLine,
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PRBool aInlineContext,
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nscoord& aTopMarginResult,
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nscoord& aBottomMarginResult);
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void SlideFrames(nsIPresContext& aPresContext,
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nsISpaceManager* aSpaceManager,
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LineData* aLine, nscoord aDY);
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PRBool DrainOverflowLines();
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PRBool RemoveChild(LineData* aLines, nsIFrame* aChild);
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PRIntn GetSkipSides() const;
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nsresult InitialReflow(nsBlockReflowState& aState);
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nsresult FrameAppendedReflow(nsBlockReflowState& aState);
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nsresult InsertNewFrame(nsIPresContext& aPresContext,
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nsBlockFrame* aParentFrame,
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nsIFrame* aNewFrame,
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nsIFrame* aPrevSibling);
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nsresult FrameInsertedReflow(nsBlockReflowState& aState);
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nsresult FrameRemovedReflow(nsBlockReflowState& aState);
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nsresult StyleChangedReflow(nsBlockReflowState& aState);
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nsresult FindTextRuns(nsBlockReflowState& aState);
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nsresult ChildIncrementalReflow(nsBlockReflowState& aState);
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nsresult ResizeReflow(nsBlockReflowState& aState);
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void ComputeFinalSize(nsBlockReflowState& aState,
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nsHTMLReflowMetrics& aMetrics);
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void BuildFloaterList();
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nsresult ReflowLinesAt(nsBlockReflowState& aState, LineData* aLine);
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PRBool ReflowLine(nsBlockReflowState& aState,
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LineData* aLine,
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nsReflowStatus& aReflowResult);
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PRBool PlaceLine(nsBlockReflowState& aState,
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LineData* aLine,
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nsReflowStatus aReflowStatus);
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PRBool IsLastLine(nsBlockReflowState& aState,
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LineData* aLine,
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nsReflowStatus aReflowStatus);
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void FindFloaters(LineData* aLine);
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void PrepareInlineReflow(nsBlockReflowState& aState, nsIFrame* aFrame, PRBool aIsBlock);
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PRBool ReflowInlineFrame(nsBlockReflowState& aState,
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LineData* aLine,
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nsIFrame* aFrame,
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nsReflowStatus& aResult,
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PRBool& aAddedToLine);
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nsresult SplitLine(nsBlockReflowState& aState,
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LineData* aLine,
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nsIFrame* aFrame);
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nsBlockFrame* FindFollowingBlockFrame(nsIFrame* aFrame);
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PRBool ReflowBlockFrame(nsBlockReflowState& aState,
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LineData* aLine,
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nsIFrame* aFrame,
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nsReflowStatus& aResult);
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PRBool PullFrame(nsBlockReflowState& aState,
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LineData* aToLine,
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LineData** aFromList,
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PRBool aUpdateGeometricParent,
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nsReflowStatus& aResult,
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PRBool& aAddedToLine);
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void PushLines(nsBlockReflowState& aState);
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void ReflowFloater(nsIPresContext& aPresContext,
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nsBlockReflowState& aState,
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nsIFrame* aFloaterFrame,
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nsHTMLReflowState& aFloaterReflowState);
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void PaintChildren(nsIPresContext& aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect);
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void PaintFloaters(nsIPresContext& aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect);
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nsresult AppendNewFrames(nsIPresContext& aPresContext, nsIFrame*);
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void RenumberLists(nsBlockReflowState& aState);
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#ifdef NS_DEBUG
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PRBool IsChild(nsIFrame* aFrame);
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#endif
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nsIStyleContext* mFirstLineStyle;
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nsIStyleContext* mFirstLetterStyle;
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LineData* mLines;
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LineData* mOverflowLines;
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// Text run information
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nsTextRun* mTextRuns;
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// For list-item frames, this is the bullet frame.
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BulletFrame* mBullet;
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// List of all floaters in this block
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nsIFrame* mFloaters;
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// Body configuration flags passed into this block when this block
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// is used by the body.
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PRUint32 mFlags;
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static nsIAtom* gFloaterAtom;
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static nsIAtom* gBulletAtom;
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};
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#endif /* nsBlockFrame_h___ */
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