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