c629e6ba46
crashes. This should fix several of the mailnews bugs. It's hard to say exactly which of them will be fixed by this, since some of them are caused by memory whackage and others are real bugs in the widget itself. Also adding in support for Troy's primary frame hashtable, thus ensuring that when the tree widget dynamically deletes frames that the mappings in the hashtable are removed (so that deleted frames won't accidentally be retrieved). git-svn-id: svn://10.0.0.236/trunk@38926 18797224-902f-48f8-a5cc-f745e15eee43
579 lines
30 KiB
C++
579 lines
30 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 "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef nsCSSFrameConstructor_h___
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#define nsCSSFrameConstructor_h___
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#include "nsIStyleFrameConstruction.h"
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#include "nslayout.h"
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class nsIDocument;
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struct nsFrameItems;
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struct nsAbsoluteItems;
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struct nsTableCreator;
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class nsIStyleContext;
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struct nsTableList;
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struct nsStyleContent;
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struct nsStyleDisplay;
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class nsIPresShell;
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class nsVoidArray;
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class nsFrameConstructorState;
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class nsCSSFrameConstructor : public nsIStyleFrameConstruction {
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public:
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nsCSSFrameConstructor(void);
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virtual ~nsCSSFrameConstructor(void);
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private:
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// These are not supported and are not implemented!
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nsCSSFrameConstructor(const nsCSSFrameConstructor& aCopy);
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nsCSSFrameConstructor& operator=(const nsCSSFrameConstructor& aCopy);
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public:
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NS_DECL_ISUPPORTS
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NS_IMETHOD Init(nsIDocument* aDocument);
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// nsIStyleFrameConstruction API
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NS_IMETHOD ConstructRootFrame(nsIPresContext* aPresContext,
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nsIContent* aDocElement,
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nsIFrame*& aNewFrame);
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NS_IMETHOD ReconstructDocElementHierarchy(nsIPresContext* aPresContext);
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NS_IMETHOD ContentAppended(nsIPresContext* aPresContext,
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nsIContent* aContainer,
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PRInt32 aNewIndexInContainer);
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NS_IMETHOD ContentInserted(nsIPresContext* aPresContext,
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nsIContent* aContainer,
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nsIContent* aChild,
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PRInt32 aIndexInContainer);
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NS_IMETHOD ContentReplaced(nsIPresContext* aPresContext,
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nsIContent* aContainer,
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nsIContent* aOldChild,
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nsIContent* aNewChild,
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PRInt32 aIndexInContainer);
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NS_IMETHOD ContentRemoved(nsIPresContext* aPresContext,
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nsIContent* aContainer,
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nsIContent* aChild,
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PRInt32 aIndexInContainer);
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NS_IMETHOD ContentChanged(nsIPresContext* aPresContext,
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nsIContent* aContent,
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nsISupports* aSubContent);
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NS_IMETHOD ContentStatesChanged(nsIPresContext* aPresContext,
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nsIContent* aContent1,
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nsIContent* aContent2);
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NS_IMETHOD AttributeChanged(nsIPresContext* aPresContext,
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nsIContent* aContent,
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nsIAtom* aAttribute,
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PRInt32 aHint);
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// Style change notifications
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NS_IMETHOD StyleRuleChanged(nsIPresContext* aPresContext,
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nsIStyleSheet* aStyleSheet,
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nsIStyleRule* aStyleRule,
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PRInt32 aHint); // See nsStyleConsts fot hint values
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NS_IMETHOD StyleRuleAdded(nsIPresContext* aPresContext,
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nsIStyleSheet* aStyleSheet,
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nsIStyleRule* aStyleRule);
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NS_IMETHOD StyleRuleRemoved(nsIPresContext* aPresContext,
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nsIStyleSheet* aStyleSheet,
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nsIStyleRule* aStyleRule);
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NS_IMETHOD ProcessRestyledFrames(nsStyleChangeList& aRestyleArray,
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nsIPresContext* aPresContext);
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// Notification that we were unable to render a replaced element.
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NS_IMETHOD CantRenderReplacedElement(nsIPresContext* aPresContext,
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nsIFrame* aFrame);
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// Request to create a continuing frame
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NS_IMETHOD CreateContinuingFrame(nsIPresContext* aPresContext,
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nsIFrame* aFrame,
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nsIFrame* aParentFrame,
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nsIFrame** aContinuingFrame);
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// Request to find the primary frame associated with a given content object.
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// This is typically called by the pres shell when there is no mapping in
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// the pres shell hash table
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NS_IMETHOD FindPrimaryFrameFor(nsIPresContext* aPresContext,
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nsIContent* aContent,
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nsIFrame** aFrame);
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NS_IMETHOD CreateTreeWidgetContent(nsIPresContext* aPresContext,
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nsIFrame* aParentFrame,
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nsIFrame* aPrevFrame,
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nsIContent* aChild,
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nsIFrame** aResult,
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PRBool aIsAppend,
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PRBool aIsScrollbar);
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NS_IMETHOD RemoveMappingsForFrameSubtree(nsIPresContext* aParentFrame,
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nsIFrame* aRemovedFrame);
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protected:
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nsresult ResolveStyleContext(nsIPresContext* aPresContext,
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nsIFrame* aParentFrame,
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nsIContent* aContent,
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nsIAtom* aTag,
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nsIStyleContext** aStyleContext);
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nsresult ConstructFrame(nsIPresContext* aPresContext,
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nsFrameConstructorState& aState,
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nsIContent* aContent,
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nsIFrame* aParentFrame,
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PRBool aHaveFirstLetterStyle,
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nsFrameItems& aFrameItems);
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nsresult ConstructDocElementFrame(nsIPresContext* aPresContext,
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nsFrameConstructorState& aState,
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nsIContent* aDocElement,
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nsIFrame* aParentFrame,
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nsIStyleContext* aParentStyleContext,
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nsIFrame*& aNewFrame);
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nsresult ConstructDocElementTableFrame(nsIPresContext* aPresContext,
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nsIContent* aDocElement,
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nsIFrame* aParentFrame,
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nsIFrame*& aNewTableFrame);
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nsresult CreateGeneratedFrameFor(nsIPresContext* aPresContext,
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nsIFrame* aParentFrame,
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nsIContent* aContent,
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nsIStyleContext* aStyleContext,
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const nsStyleContent* aStyleContent,
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PRUint32 aContentIndex,
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nsIFrame** aFrame);
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PRBool CreateGeneratedContentFrame(nsIPresContext* aPresContext,
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nsFrameConstructorState& aState,
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nsIFrame* aFrame,
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nsIContent* aContent,
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nsIStyleContext* aStyleContext,
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nsIAtom* aPseudoElement,
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PRBool aMakeFirstLetterFrame,
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PRBool aForBlock,
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nsIFrame** aResult);
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nsresult AppendFrames(nsIPresContext* aPresContext,
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nsIPresShell* aPresShell,
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nsIContent* aContainer,
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nsIFrame* aParentFrame,
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nsIFrame* aFrameList);
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// BEGIN TABLE SECTION
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nsresult ConstructTableFrame(nsIPresContext* aPresContext,
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nsFrameConstructorState& aState,
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nsIContent* aContent,
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nsIFrame* aParent,
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nsIStyleContext* aStyleContext,
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nsIFrame*& aNewFrame,
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nsTableCreator& aTableCreator);
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nsresult ConstructAnonymousTableFrame(nsIPresContext* aPresContext,
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nsFrameConstructorState& aState,
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nsIContent* aContent,
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nsIFrame* aParentFrame,
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nsIFrame*& aNewTopFrame,
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nsIFrame*& aOuterFrame,
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nsIFrame*& aInnerFrame,
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nsTableCreator& aTableCreator);
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nsresult ConstructTableCaptionFrame(nsIPresContext* aPresContext,
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nsFrameConstructorState& aState,
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nsIContent* aContent,
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nsIFrame* aParent,
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nsIStyleContext* aStyleContext,
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nsIFrame*& aNewTopMostFrame,
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nsIFrame*& aNewCaptionFrame,
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nsTableCreator& aTableCreator);
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nsresult ConstructTableGroupFrame(nsIPresContext* aPresContext,
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nsFrameConstructorState& aState,
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nsIContent* aContent,
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nsIFrame* aParent,
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nsIStyleContext* aStyleContext,
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PRBool aIsRowGroup,
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nsIFrame*& aNewTopFrame,
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nsIFrame*& aNewGroupFrame,
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nsTableCreator& aTableCreator,
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nsTableList* aToDo = nsnull);
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nsresult ConstructTableGroupFrameOnly(nsIPresContext* aPresContext,
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nsFrameConstructorState& aState,
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nsIContent* aContent,
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nsIFrame* aParent,
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nsIStyleContext* aStyleContext,
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PRBool aIsRowGroup,
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nsIFrame*& aNewTopMostFrame,
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nsIFrame*& aNewGroupFrame,
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nsTableCreator& aTableCreator,
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PRBool aProcessChildren = PR_TRUE);
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nsresult ConstructTableRowFrame(nsIPresContext* aPresContext,
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nsFrameConstructorState& aState,
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nsIContent* aContent,
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nsIFrame* aParent,
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nsIStyleContext* aStyleContext,
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nsIFrame*& aNewTopMostFrame,
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nsIFrame*& aNewRowFrame,
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nsTableCreator& aTableCreator,
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nsTableList* aToDo = nsnull);
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nsresult ConstructTableRowFrameOnly(nsIPresContext* aPresContext,
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nsFrameConstructorState& aState,
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nsIContent* aContent,
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nsIFrame* aParentFrame,
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nsIStyleContext* aStyleContext,
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PRBool aProcessChildren,
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nsIFrame*& aNewRowFrame,
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nsTableCreator& aTableCreator);
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nsresult ConstructTableColFrame(nsIPresContext* aPresContext,
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nsFrameConstructorState& aState,
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nsIContent* aContent,
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nsIFrame* aParent,
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nsIStyleContext* aStyleContext,
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nsIFrame*& aNewTopMostFrame,
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nsIFrame*& aNewColFrame,
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nsTableCreator& aTableCreator);
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nsresult ConstructTableColFrameOnly(nsIPresContext* aPresContext,
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nsFrameConstructorState& aState,
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nsIContent* aContent,
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nsIFrame* aParentFrame,
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nsIStyleContext* aStyleContext,
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nsIFrame*& aNewColFrame,
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nsTableCreator& aTableCreator);
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nsresult ConstructTableCellFrame(nsIPresContext* aPresContext,
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nsFrameConstructorState& aState,
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nsIContent* aContent,
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nsIFrame* aParentFrame,
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nsIStyleContext* aStyleContext,
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nsIFrame*& aNewTopMostFrame,
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nsIFrame*& aNewCellFrame,
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nsIFrame*& aNewCellBodyFrame,
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nsTableCreator& aTableCreator,
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PRBool aProcessChildren = PR_TRUE);
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nsresult ConstructTableCellFrameOnly(nsIPresContext* aPresContext,
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nsFrameConstructorState& aState,
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nsIContent* aContent,
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nsIFrame* aParentFrame,
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nsIStyleContext* aStyleContext,
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nsIFrame*& aNewCellFrame,
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nsIFrame*& aNewCellBodyFrame,
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nsTableCreator& aTableCreator,
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PRBool aProcessChildren);
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nsresult TableProcessChildren(nsIPresContext* aPresContext,
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nsFrameConstructorState& aState,
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nsIContent* aContent,
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nsIFrame* aParentFrame,
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nsFrameItems& aChildList,
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nsTableCreator& aTableCreator);
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nsresult TableProcessChild(nsIPresContext* aPresContext,
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nsFrameConstructorState& aState,
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nsIContent* aChildContent,
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nsIFrame* aParentFrame,
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nsIStyleContext* aParentStyleContext,
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nsFrameItems& aChildItems,
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nsTableCreator& aTableCreator);
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nsresult ConstructTableRowFrameOnly(nsIPresContext* aPresContext,
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nsIContent* aContent,
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nsIFrame* aParentFrame,
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nsIStyleContext* aStyleContext,
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nsAbsoluteItems& aAbsoluteItems,
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PRBool aProcessChildren,
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nsIFrame*& aNewRowFrame,
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nsAbsoluteItems& aFixedItems,
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nsTableCreator& aTableCreator);
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nsresult ConstructTableColFrame(nsIPresContext* aPresContext,
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nsIContent* aContent,
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nsIFrame* aParent,
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nsIStyleContext* aStyleContext,
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nsAbsoluteItems& aAbsoluteItems,
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nsIFrame*& aNewTopMostFrame,
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nsIFrame*& aNewColFrame,
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nsAbsoluteItems& aFixedItems,
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nsTableCreator& aTableCreator);
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nsresult ConstructTableColFrameOnly(nsIPresContext* aPresContext,
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nsIContent* aContent,
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nsIFrame* aParentFrame,
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nsIStyleContext* aStyleContext,
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nsAbsoluteItems& aAbsoluteItems,
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nsIFrame*& aNewColFrame,
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nsAbsoluteItems& aFixedItems,
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nsTableCreator& aTableCreator);
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nsresult ConstructTableCellFrame(nsIPresContext* aPresContext,
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nsIContent* aContent,
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nsIFrame* aParentFrame,
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nsIStyleContext* aStyleContext,
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nsAbsoluteItems& aAbsoluteItems,
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nsIFrame*& aNewTopMostFrame,
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nsIFrame*& aNewCellFrame,
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nsIFrame*& aNewCellBodyFrame,
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nsAbsoluteItems& aFixedItems,
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nsTableCreator& aTableCreator,
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PRBool aProcessChildren = PR_TRUE);
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nsresult ConstructTableCellFrameOnly(nsIPresContext* aPresContext,
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nsIContent* aContent,
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nsIFrame* aParentFrame,
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nsIStyleContext* aStyleContext,
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nsAbsoluteItems& aAbsoluteItems,
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nsIFrame*& aNewCellFrame,
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nsIFrame*& aNewCellBodyFrame,
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nsAbsoluteItems& aFixedItems,
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nsTableCreator& aTableCreator,
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PRBool aProcessChildren);
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nsresult TableProcessChildren(nsIPresContext* aPresContext,
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nsIContent* aContent,
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nsIFrame* aParentFrame,
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nsAbsoluteItems& aAbsoluteItems,
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nsFrameItems& aChildList,
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nsAbsoluteItems& aFixedItems,
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nsTableCreator& aTableCreator);
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nsresult TableProcessChild(nsIPresContext* aPresContext,
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nsIContent* aChildContent,
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nsIFrame* aParentFrame,
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nsIStyleContext* aParentStyleContext,
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nsAbsoluteItems& aAbsoluteItems,
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nsFrameItems& aChildItems,
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nsAbsoluteItems& aFixedItems,
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nsTableCreator& aTableCreator);
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nsresult TableProcessTableList(nsIPresContext* aPresContext,
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nsTableList& aTableList);
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nsIFrame* TableGetAsNonScrollFrame(nsIPresContext* aPresContext,
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nsIFrame* aFrame,
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const nsStyleDisplay* aDisplayType);
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PRBool TableIsValidCellContent(nsIPresContext* aPresContext,
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nsIFrame* aParentFrame,
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nsIContent* aContent);
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const nsStyleDisplay* GetDisplay(nsIFrame* aFrame);
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PRBool IsTableRelated(PRUint8 aDisplay);
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// END TABLE SECTION
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nsresult CreatePlaceholderFrameFor(nsIPresContext* aPresContext,
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nsIContent* aContent,
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nsIFrame* aFrame,
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nsIStyleContext* aStyleContext,
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nsIFrame* aParentFrame,
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nsIFrame** aPlaceholderFrame);
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nsresult ConstructAlternateImageFrame(nsIPresContext* aPresContext,
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nsIContent* aContent,
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nsIStyleContext* aStyleContext,
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nsIFrame* aParentFrame,
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nsIFrame*& aFrame);
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nsresult ConstructRadioControlFrame(nsIPresContext* aPresContext,
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nsIFrame*& aNewFrame,
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nsIContent* aContent);
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nsresult ConstructTextControlFrame(nsIPresContext* aPresContext,
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nsIFrame*& aNewFrame);
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nsresult ConstructSelectFrame(nsIPresContext* aPresContext,
|
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nsFrameConstructorState& aState,
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nsIContent* aContent,
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nsIFrame* aParentFrame,
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|
nsIAtom* aTag,
|
|
nsIStyleContext* aStyleContext,
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nsIFrame*& aNewFrame,
|
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PRBool& aProcessChildren,
|
|
PRBool aIsAbsolutelyPositioned,
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PRBool& aFrameHasBeenInitialized,
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PRBool aIsFixedPositioned,
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nsFrameItems& aFrameItems);
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nsresult ConstructFrameByTag(nsIPresContext* aPresContext,
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|
nsFrameConstructorState& aState,
|
|
nsIContent* aContent,
|
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nsIFrame* aParentFrame,
|
|
nsIAtom* aTag,
|
|
nsIStyleContext* aStyleContext,
|
|
nsFrameItems& aFrameItems);
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|
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nsresult CreateAnonymousFrames(nsIPresContext* aPresContext,
|
|
nsIAtom* aTag,
|
|
nsFrameConstructorState& aState,
|
|
nsIContent* aContent,
|
|
nsIFrame* aNewFrame,
|
|
nsFrameItems& aChildItems);
|
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|
|
|
|
#ifdef INCLUDE_XUL
|
|
nsresult ConstructXULFrame(nsIPresContext* aPresContext,
|
|
nsFrameConstructorState& aState,
|
|
nsIContent* aContent,
|
|
nsIFrame* aParentFrame,
|
|
nsIAtom* aTag,
|
|
nsIStyleContext* aStyleContext,
|
|
nsFrameItems& aFrameItems,
|
|
PRBool& aHaltProcessing);
|
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|
|
#endif
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|
|
nsresult ConstructFrameByDisplayType(nsIPresContext* aPresContext,
|
|
nsFrameConstructorState& aState,
|
|
const nsStyleDisplay* aDisplay,
|
|
nsIContent* aContent,
|
|
nsIFrame* aParentFrame,
|
|
nsIStyleContext* aStyleContext,
|
|
PRBool aHaveFirstLetterStyle,
|
|
nsFrameItems& aFrameItems);
|
|
|
|
nsresult GetAdjustedParentFrame(nsIFrame* aCurrentParentFrame,
|
|
PRUint8 aChildDisplayType,
|
|
nsIFrame*& aNewParentFrame);
|
|
|
|
|
|
nsresult ProcessChildren(nsIPresContext* aPresContext,
|
|
nsFrameConstructorState& aState,
|
|
nsIContent* aContent,
|
|
nsIFrame* aFrame,
|
|
PRBool aCanHaveGeneratedContent,
|
|
nsFrameItems& aFrameItems);
|
|
|
|
nsresult CreateInputFrame(nsIPresContext *aPresContext,
|
|
nsIContent *aContent,
|
|
nsIFrame *&aFrame);
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|
|
PRBool IsScrollable(nsIPresContext* aPresContext, const nsStyleDisplay* aDisplay);
|
|
|
|
nsIFrame* GetFrameFor(nsIPresShell* aPresShell, nsIPresContext* aPresContext,
|
|
nsIContent* aContent);
|
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|
|
nsIFrame* GetAbsoluteContainingBlock(nsIPresContext* aPresContext,
|
|
nsIFrame* aFrame);
|
|
|
|
nsIFrame* GetFloaterContainingBlock(nsIPresContext* aPresContext,
|
|
nsIFrame* aFrame);
|
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|
|
nsresult InitializeScrollFrame(nsIPresContext* aPresContext,
|
|
nsFrameConstructorState& aState,
|
|
nsIFrame* aScrollFrame,
|
|
nsIContent* aContent,
|
|
nsIFrame* aParentFrame,
|
|
nsIStyleContext* aStyleContext,
|
|
nsIFrame*& aNewFrame,
|
|
PRBool aIsAbsolutelyPositioned,
|
|
PRBool aIsFixedPositioned,
|
|
PRBool aCreateBlock);
|
|
|
|
nsresult RecreateFramesForContent(nsIPresContext* aPresContext,
|
|
nsIContent* aContent);
|
|
|
|
PRInt32 FindRestyledFramesBelow(nsIFrame* aFrame,
|
|
nsIPresContext* aPresContext,
|
|
PRInt32 aParentHint,
|
|
nsStyleChangeList& aResults);
|
|
|
|
PRInt32 ComputeStateChangeFor(nsIPresContext* aPresContext, nsIFrame* aFrame,
|
|
nsStyleChangeList& aChangeList,
|
|
PRInt32 aFrameChange);
|
|
|
|
nsresult RecreateFramesOnAttributeChange(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIAtom* aAttribute);
|
|
|
|
nsresult CreateContinuingOuterTableFrame(nsIPresContext* aPresContext,
|
|
nsIFrame* aFrame,
|
|
nsIFrame* aParentFrame,
|
|
nsIContent* aContent,
|
|
nsIStyleContext* aStyleContext,
|
|
nsIFrame** aContinuingFrame);
|
|
|
|
nsresult CreateContinuingTableFrame(nsIPresContext* aPresContext,
|
|
nsIFrame* aFrame,
|
|
nsIFrame* aParentFrame,
|
|
nsIContent* aContent,
|
|
nsIStyleContext* aStyleContext,
|
|
nsIFrame** aContinuingFrame);
|
|
|
|
//----------------------------------------
|
|
|
|
// Methods support creating block frames and their children
|
|
|
|
PRBool HaveFirstLetterStyle(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIStyleContext* aStyleContext);
|
|
|
|
nsIStyleContext* GetFirstLetterStyle(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIStyleContext* aStyleContext);
|
|
|
|
PRBool ShouldCreateFirstLetterFrame(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIFrame* aFrame);
|
|
|
|
nsresult ProcessBlockChildren(nsIPresContext* aPresContext,
|
|
nsFrameConstructorState& aState,
|
|
nsIContent* aContent,
|
|
nsIFrame* aFrame,
|
|
nsFrameItems& aFrameItems,
|
|
PRBool aCanHaveGeneratedContent,
|
|
PRBool aForBlock);
|
|
|
|
nsresult WrapTextFrame(nsIPresContext* aPresContext,
|
|
nsIFrame* aTextFrame,
|
|
nsIContent* aParentContent,
|
|
nsIContent* aChildContent,
|
|
nsIFrame* aParentFrame,
|
|
nsFrameItems& aFrameItems,
|
|
nsAbsoluteItems& aFloatingItems,
|
|
PRBool aForBlock);
|
|
|
|
void CreateFloatingFirstLetterFrame(nsIPresContext* aPresContext,
|
|
nsIFrame* aTextFrame,
|
|
nsIContent* aContent,
|
|
nsIContent* aChildContent,
|
|
nsIFrame* aParentFrame,
|
|
nsFrameItems& aFrameItems,
|
|
nsFrameItems& aFloatingItems,
|
|
nsIStyleContext* aStyleContext);
|
|
|
|
protected:
|
|
nsIDocument* mDocument;
|
|
|
|
nsIFrame* mInitialContainingBlock;
|
|
nsIFrame* mFixedContainingBlock;
|
|
nsIFrame* mDocElementContainingBlock;
|
|
};
|
|
|
|
#endif /* nsCSSFrameConstructor_h___ */
|