gecko-dev/layout/tables/nsTableOuterFrame.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Netscape Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
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* use your version of this file under the terms of the NPL, indicate your
* decision by deleting the provisions above and replace them with the notice
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* the provisions above, a recipient may use your version of this file under
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*
* ***** END LICENSE BLOCK ***** */
#ifndef nsTableOuterFrame_h__
#define nsTableOuterFrame_h__
#include "nscore.h"
#include "nsHTMLContainerFrame.h"
#include "nsBlockFrame.h"
#include "nsITableLayout.h"
#ifdef DEBUG_TABLE_REFLOW_TIMING
class nsReflowTimer;
#endif
struct nsStyleTable;
class nsTableFrame;
class nsTableCaptionFrame : public nsBlockFrame
{
public:
// nsISupports
NS_IMETHOD GetFrameType(nsIAtom** aType) const;
friend nsresult NS_NewTableCaptionFrame(nsIPresShell* aPresShell, nsIFrame** aNewFrame);
protected:
nsTableCaptionFrame();
virtual ~nsTableCaptionFrame();
};
/* TODO
1. decide if we'll allow subclassing. If so, decide which methods really need to be virtual.
*/
/**
* main frame for an nsTable content object,
* the nsTableOuterFrame contains 0 or one caption frame, and a nsTableFrame
* psuedo-frame (referred to as the "inner frame').
*/
class nsTableOuterFrame : public nsHTMLContainerFrame, public nsITableLayout
{
public:
// nsISupports
NS_DECL_ISUPPORTS_INHERITED
/** instantiate a new instance of nsTableOuterFrame.
* @param aResult the new object is returned in this out-param
*
* @return NS_OK if the frame was properly allocated, otherwise an error code
*/
friend nsresult NS_NewTableOuterFrame(nsIPresShell* aPresShell, nsIFrame** aResult);
NS_IMETHOD Init(nsIPresContext* aPresContext,
nsIContent* aContent,
nsIFrame* aParent,
nsIStyleContext* aContext,
nsIFrame* aPrevInFlow);
NS_IMETHOD Destroy(nsIPresContext* aPresContext);
NS_IMETHOD IsPercentageBase(PRBool& aBase) const;
NS_IMETHOD AdjustZeroWidth();
/** @see nsIFrame::SetInitialChildList */
NS_IMETHOD SetInitialChildList(nsIPresContext* aPresContext,
nsIAtom* aListName,
nsIFrame* aChildList);
NS_IMETHOD FirstChild(nsIPresContext* aPresContext,
nsIAtom* aListName,
nsIFrame** aFirstChild) const;
NS_IMETHOD GetAdditionalChildListName(PRInt32 aIndex,
nsIAtom** aListName) const;
NS_IMETHOD AppendFrames(nsIPresContext* aPresContext,
nsIPresShell& aPresShell,
nsIAtom* aListName,
nsIFrame* aFrameList);
NS_IMETHOD InsertFrames(nsIPresContext* aPresContext,
nsIPresShell& aPresShell,
nsIAtom* aListName,
nsIFrame* aPrevFrame,
nsIFrame* aFrameList);
NS_IMETHOD RemoveFrame(nsIPresContext* aPresContext,
nsIPresShell& aPresShell,
nsIAtom* aListName,
nsIFrame* aOldFrame);
#ifdef ACCESSIBILITY
NS_IMETHOD GetAccessible(nsIAccessible** aAccessible);
#endif
/** @see nsIFrame::Paint */
NS_IMETHOD Paint(nsIPresContext* aPresContext,
nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect,
nsFramePaintLayer aWhichLayer,
PRUint32 aFlags = 0);
// the outer table does not paint its entire background if it has margins and/or captions
virtual PRBool CanPaintBackground() { return PR_FALSE; }
NS_IMETHOD GetFrameForPoint(nsIPresContext* aPresContext,
const nsPoint& aPoint,
nsFramePaintLayer aWhichLayer,
nsIFrame** aFrame);
/** process a reflow command for the table.
* This involves reflowing the caption and the inner table.
* @see nsIFrame::Reflow */
NS_IMETHOD Reflow(nsIPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus);
/**
* Get the "type" of the frame
*
* @see nsLayoutAtoms::tableOuterFrame
*/
NS_IMETHOD GetFrameType(nsIAtom** aType) const;
#ifdef DEBUG
NS_IMETHOD GetFrameName(nsAString& aResult) const;
NS_IMETHOD SizeOf(nsISizeOfHandler* aSizer, PRUint32* aResult) const;
#endif
/** SetSelected needs to be overridden to talk to inner tableframe
*/
NS_IMETHOD SetSelected(nsIPresContext* aPresContext,
nsIDOMRange *aRange,
PRBool aSelected,
nsSpread aSpread);
/** return the min width of the caption. Return 0 if there is no caption.
* The return value is only meaningful after the caption has had a pass1 reflow.
*/
nscoord GetMinCaptionWidth();
NS_IMETHOD GetParentStyleContextFrame(nsIPresContext* aPresContext,
nsIFrame** aProviderFrame,
PRBool* aIsChild);
/*---------------- nsITableLayout methods ------------------------*/
/** @see nsITableFrame::GetCellDataAt */
NS_IMETHOD GetCellDataAt(PRInt32 aRowIndex, PRInt32 aColIndex,
nsIDOMElement* &aCell, //out params
PRInt32& aStartRowIndex, PRInt32& aStartColIndex,
PRInt32& aRowSpan, PRInt32& aColSpan,
PRInt32& aActualRowSpan, PRInt32& aActualColSpan,
PRBool& aIsSelected);
/** @see nsITableFrame::GetTableSize */
NS_IMETHOD GetTableSize(PRInt32& aRowCount, PRInt32& aColCount);
static void ZeroAutoMargin(nsHTMLReflowState& aReflowState,
nsMargin& aMargin);
PRBool IsNested(const nsHTMLReflowState& aReflowState) const;
static PRBool IsAutoWidth(nsIFrame& aTableOrCaption,
PRBool* aIsPctWidth = nsnull);
protected:
nsTableOuterFrame();
virtual ~nsTableOuterFrame();
void InitChildReflowState(nsIPresContext& aPresContext,
nsHTMLReflowState& aReflowState);
/** Always returns 0, since the outer table frame has no border of its own
* The inner table frame can answer this question in a meaningful way.
* @see nsHTMLContainerFrame::GetSkipSides */
virtual PRIntn GetSkipSides() const;
/** overridden here to handle special caption-table relationship
* @see nsContainerFrame::VerifyTree
*/
NS_IMETHOD VerifyTree() const;
/**
* Remove and delete aChild's next-in-flow(s). Updates the sibling and flow
* pointers.
*
* Updates the child count and content offsets of all containers that are
* affected
*
* Overloaded here because nsContainerFrame makes assumptions about pseudo-frames
* that are not true for tables.
*
* @param aChild child this child's next-in-flow
* @return PR_TRUE if successful and PR_FALSE otherwise
*/
virtual void DeleteChildsNextInFlow(nsIPresContext* aPresContext, nsIFrame* aChild);
// begin Incremental Reflow methods
/** process an incremental reflow command */
NS_IMETHOD IncrementalReflow(nsIPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus);
/** process an incremental reflow command targeted at a child of this frame. */
NS_IMETHOD IR_TargetIsChild(nsIPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus,
nsIFrame * aNextFrame);
/** process an incremental reflow command targeted at the table inner frame. */
NS_IMETHOD IR_TargetIsInnerTableFrame(nsIPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus);
/** process an incremental reflow command targeted at the caption. */
NS_IMETHOD IR_TargetIsCaptionFrame(nsIPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus);
/** process an incremental reflow command targeted at this frame.
* many incremental reflows that are targeted at this outer frame
* are actually handled by the inner frame. The logic to decide this
* is here.
*/
NS_IMETHOD IR_TargetIsMe(nsIPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus);
/** pass along the incremental reflow command to the inner table. */
NS_IMETHOD IR_InnerTableReflow(nsIPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus);
/** handle incremental reflow notification that a caption was inserted. */
NS_IMETHOD IR_CaptionInserted(nsIPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus);
/** handle incremental reflow notification that we have dirty child frames */
NS_IMETHOD IR_ReflowDirty(nsIPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus);
/** handle incremental reflow notification that the caption style was changed
* such that it is now left|right instead of top|bottom, or vice versa.
*/
PRBool IR_CaptionChangedAxis(const nsStyleTable* aOldStyle,
const nsStyleTable* aNewStyle) const;
// end Incremental Reflow methods
nsSize GetMaxElementSize(const nsMargin& aInnerMargin,
const nsMargin& aInnerPadding,
const nsMargin& aCaptionMargin);
nscoord GetMaxWidth(PRUint8 aCaptionSide,
const nsMargin& aInnerMargin,
const nsMargin& aCaptionMargin);
PRUint8 GetCaptionSide();
void SetDesiredSize(PRUint8 aCaptionSide,
const nsMargin& aInnerMargin,
const nsMargin& aCaptionMargin,
nscoord& aWidth,
nscoord& aHeight);
NS_IMETHOD GetCaptionOrigin(nsIPresContext* aPresContext,
PRUint32 aCaptionSide,
const nsSize& aContainBlockSize,
const nsSize& aInnerSize,
const nsMargin& aInnerMargin,
const nsSize& aCaptionSize,
nsMargin& aCaptionMargin,
nsPoint& aOrigin);
NS_IMETHOD GetInnerOrigin(nsIPresContext* aPresContext,
PRUint32 aCaptionSide,
const nsSize& aContainBlockSize,
const nsSize& aCaptionSize,
const nsMargin& aCaptionMargin,
const nsSize& aInnerSize,
nsMargin& aInnerMargin,
nsPoint& aOrigin);
nscoord GetChildAvailWidth(nsIPresContext* aPresContext,
nsIFrame* aChildFrame,
const nsHTMLReflowState& aOuterRS,
nscoord aOuterWidth,
nsMargin& aMargin,
nsMargin& aPadding);
nscoord GetCaptionAvailWidth(nsIPresContext* aPresContext,
nsIFrame* aCaptionFrame,
const nsHTMLReflowState& aReflowState,
nscoord* aInnerWidth = nsnull,
const nsMargin* aInnerMargin = nsnull);
NS_IMETHOD OuterReflowChild(nsIPresContext* aPresContext,
nsIFrame* aChildFrame,
const nsHTMLReflowState& aOuterRS,
nsHTMLReflowMetrics& aMetrics,
nscoord* aAvailWidth,
nsSize& aDesiredSize,
nsMargin& aMargin,
nsMargin& aMarginNoAuto,
nsMargin& aPadding,
nsReflowReason aReflowReason,
nsReflowStatus& aStatus);
void UpdateReflowMetrics(PRUint8 aCaptionSide,
nsHTMLReflowMetrics& aMet,
const nsMargin& aInnerMargin,
const nsMargin& aInnerMarginNoAuto,
const nsMargin& aInnerPadding,
const nsMargin& aCaptionMargin,
const nsMargin& aCaptionMargionNoAuto);
void InvalidateDamage(nsIPresContext* aPresContext,
PRUint8 aCaptionSide,
nsSize& aOuterSize,
PRBool aInnerChanged,
PRBool aCaptionChanged);
void GetMarginPadding(nsIPresContext* aPresContext,
const nsHTMLReflowState& aOuterRS,
nsIFrame* aChildFrame,
nsMargin& aMargin,
nsMargin& aMarginNoAuto,
nsMargin& aPadding);
private:
// used to keep track of this frame's children. They are redundant with mFrames, but more convient
nsTableFrame* mInnerTableFrame;
nsIFrame* mCaptionFrame;
// used to track caption max element size
PRInt32 mMinCaptionWidth;
nscoord mPriorAvailWidth;
#ifdef DEBUG_TABLE_REFLOW_TIMING
public:
nsReflowTimer* mTimer;
#endif
};
inline nscoord nsTableOuterFrame::GetMinCaptionWidth()
{ return mMinCaptionWidth; }
inline PRIntn nsTableOuterFrame::GetSkipSides() const
{ return 0; }
#endif