gecko-dev/layout/base/nsCSSFrameConstructor.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla 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/MPL/
*
* 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 of 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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* ***** END LICENSE BLOCK ***** */
#ifndef nsCSSFrameConstructor_h___
#define nsCSSFrameConstructor_h___
#include "nsCOMPtr.h"
#include "nsILayoutHistoryState.h"
#include "nsIXBLService.h"
#include "nsQuoteList.h"
#include "nsDataHashtable.h"
#include "nsHashKeys.h"
#include "plevent.h"
#include "nsIEventQueueService.h"
#include "nsIEventQueue.h"
class nsIDocument;
struct nsFrameItems;
struct nsAbsoluteItems;
struct nsTableCreator;
class nsStyleContext;
struct nsTableList;
struct nsStyleContent;
struct nsStyleDisplay;
class nsIPresShell;
class nsVoidArray;
class nsFrameManager;
class nsFrameConstructorState;
class nsIDOMHTMLSelectElement;
class nsPresContext;
class nsStyleChangeList;
class nsIFrame;
struct nsFindFrameHint
{
nsIFrame *mPrimaryFrameForPrevSibling; // weak ref to the primary frame for the content for which we need a frame
nsFindFrameHint() : mPrimaryFrameForPrevSibling(nsnull) { }
};
class nsCSSFrameConstructor
{
public:
nsCSSFrameConstructor(nsIDocument *aDocument);
~nsCSSFrameConstructor(void) {}
// Maintain global objects - gXBLService
static nsIXBLService * GetXBLService();
static void ReleaseGlobals() { NS_IF_RELEASE(gXBLService); }
// get the alternate text for a content node
static void GetAlternateTextFor(nsIContent* aContent,
nsIAtom* aTag, // content object's tag
nsString& aAltText);
private:
// These are not supported and are not implemented!
nsCSSFrameConstructor(const nsCSSFrameConstructor& aCopy);
nsCSSFrameConstructor& operator=(const nsCSSFrameConstructor& aCopy);
public:
nsresult ConstructRootFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsIContent* aDocElement,
nsIFrame*& aNewFrame);
nsresult ReconstructDocElementHierarchy(nsPresContext* aPresContext);
nsresult ContentAppended(nsPresContext* aPresContext,
nsIContent* aContainer,
PRInt32 aNewIndexInContainer);
nsresult ContentInserted(nsPresContext* aPresContext,
nsIContent* aContainer,
nsIFrame* aContainerFrame,
nsIContent* aChild,
PRInt32 aIndexInContainer,
nsILayoutHistoryState* aFrameState,
PRBool aInReinsertContent);
nsresult ContentRemoved(nsPresContext* aPresContext,
nsIContent* aContainer,
nsIContent* aChild,
PRInt32 aIndexInContainer,
PRBool aInReinsertContent);
nsresult CharacterDataChanged(nsPresContext* aPresContext,
nsIContent* aContent,
PRBool aAppend);
nsresult ContentStatesChanged(nsPresContext* aPresContext,
nsIContent* aContent1,
nsIContent* aContent2,
PRInt32 aStateMask);
void GeneratedContentFrameRemoved(nsIFrame* aFrame);
nsresult AttributeChanged(nsPresContext* aPresContext,
nsIContent* aContent,
PRInt32 aNameSpaceID,
nsIAtom* aAttribute,
PRInt32 aModType);
void BeginUpdate() { ++mUpdateCount; }
void EndUpdate();
void WillDestroyFrameTree();
nsresult ProcessRestyledFrames(nsStyleChangeList& aRestyleArray,
nsPresContext* aPresContext);
void ProcessPendingRestyles();
void PostRestyleEvent(nsIContent* aContent, nsReStyleHint aRestyleHint,
nsChangeHint aMinChangeHint);
// Notification that we were unable to render a replaced element.
nsresult CantRenderReplacedElement(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsIFrame* aFrame);
// Request to create a continuing frame
nsresult CreateContinuingFrame(nsPresContext* aPresContext,
nsIFrame* aFrame,
nsIFrame* aParentFrame,
nsIFrame** aContinuingFrame);
// Request to find the primary frame associated with a given content object.
// This is typically called by the pres shell when there is no mapping in
// the pres shell hash table
nsresult FindPrimaryFrameFor(nsPresContext* aPresContext,
nsFrameManager* aFrameManager,
nsIContent* aContent,
nsIFrame** aFrame,
nsFindFrameHint* aHint);
// Get the XBL insertion point for a child
nsresult GetInsertionPoint(nsIPresShell* aPresShell,
nsIFrame* aParentFrame,
nsIContent* aChildContent,
nsIFrame** aInsertionPoint,
PRBool* aMultiple = nsnull);
nsresult CreateListBoxContent(nsPresContext* aPresContext,
nsIFrame* aParentFrame,
nsIFrame* aPrevFrame,
nsIContent* aChild,
nsIFrame** aResult,
PRBool aIsAppend,
PRBool aIsScrollbar,
nsILayoutHistoryState* aFrameState);
nsresult RemoveMappingsForFrameSubtree(nsPresContext* aParentFrame,
nsIFrame* aRemovedFrame,
nsILayoutHistoryState* aFrameState);
private:
nsresult ReinsertContent(nsPresContext* aPresContext,
nsIContent* aContainer,
nsIContent* aChild);
nsresult ConstructPageFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsIFrame* aParentFrame,
nsIFrame* aPrevPageFrame,
nsIFrame*& aPageFrame,
nsIFrame*& aPageContentFrame);
void DoContentStateChanged(nsPresContext* aPresContext,
nsIContent* aContent,
PRInt32 aStateMask);
public:
/* aMinHint is the minimal change that should be made to the element */
void RestyleElement(nsPresContext* aPresContext,
nsIContent* aContent,
nsIFrame* aPrimaryFrame,
nsChangeHint aMinHint);
void RestyleLaterSiblings(nsPresContext* aPresContext,
nsIContent* aContent);
private:
nsresult InitAndRestoreFrame (nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsStyleContext* aStyleContext,
nsIFrame* aPrevInFlow,
nsIFrame* aNewFrame);
already_AddRefed<nsStyleContext>
ResolveStyleContext(nsPresContext* aPresContext,
nsIFrame* aParentFrame,
nsIContent* aContent);
nsresult ConstructFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsFrameItems& aFrameItems);
nsresult ConstructDocElementFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aDocElement,
nsIFrame* aParentFrame,
nsIFrame*& aNewFrame);
nsresult ConstructDocElementTableFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsIContent* aDocElement,
nsIFrame* aParentFrame,
nsIFrame*& aNewTableFrame,
nsILayoutHistoryState* aFrameState);
nsresult CreateGeneratedFrameFor(nsPresContext* aPresContext,
nsIDocument* aDocument,
nsIFrame* aParentFrame,
nsIContent* aContent,
nsStyleContext* aStyleContext,
const nsStyleContent* aStyleContent,
PRUint32 aContentIndex,
nsIFrame** aFrame);
PRBool CreateGeneratedContentFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIFrame* aFrame,
nsIContent* aContent,
nsStyleContext* aStyleContext,
nsIAtom* aPseudoElement,
nsIFrame** aResult);
nsresult AppendFrames(nsPresContext* aPresContext,
nsIPresShell* aPresShell,
nsFrameManager* aFrameManager,
nsIContent* aContainer,
nsIFrame* aParentFrame,
nsIFrame* aFrameList);
// BEGIN TABLE SECTION
nsresult ConstructTableFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aGeometricParent,
nsIFrame* aContentParent,
nsStyleContext* aStyleContext,
nsTableCreator& aTableCreator,
PRBool aIsPseudo,
nsFrameItems& aChildItems,
nsIFrame*& aNewOuterFrame,
nsIFrame*& aNewInnerFrame,
PRBool& aIsPseudoParent);
nsresult ConstructTableCaptionFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParent,
nsStyleContext* aStyleContext,
nsTableCreator& aTableCreator,
nsFrameItems& aChildItems,
nsIFrame*& aNewFrame,
PRBool& aIsPseudoParent);
nsresult ConstructTableRowGroupFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParent,
nsStyleContext* aStyleContext,
nsTableCreator& aTableCreator,
PRBool aIsPseudo,
nsFrameItems& aChildItems,
nsIFrame*& aNewFrame,
PRBool& aIsPseudoParent);
nsresult ConstructTableColGroupFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParent,
nsStyleContext* aStyleContext,
nsTableCreator& aTableCreator,
PRBool aIsPseudo,
nsFrameItems& aChildItems,
nsIFrame*& aNewFrame,
PRBool& aIsPseudoParent);
nsresult ConstructTableRowFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParent,
nsStyleContext* aStyleContext,
nsTableCreator& aTableCreator,
PRBool aIsPseudo,
nsFrameItems& aChildItems,
nsIFrame*& aNewFrame,
PRBool& aIsPseudoParent);
nsresult ConstructTableColFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParent,
nsStyleContext* aStyleContext,
nsTableCreator& aTableCreator,
PRBool aIsPseudo,
nsFrameItems& aChildItems,
nsIFrame*& aNewFrame,
PRBool& aIsPseudoParent);
nsresult ConstructTableCellFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsStyleContext* aStyleContext,
nsTableCreator& aTableCreator,
PRBool aIsPseudo,
nsFrameItems& aChildItems,
nsIFrame*& aNewCellOuterFrame,
nsIFrame*& aNewCellInnerFrame,
PRBool& aIsPseudoParent);
PRBool MustGeneratePseudoParent(nsPresContext* aPresContext,
nsIFrame* aParentFrame,
nsIAtom* aTag,
nsIContent* aContent,
nsStyleContext* aContext);
nsresult ConstructTableForeignFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrameIn,
nsStyleContext* aStyleContext,
nsTableCreator& aTableCreator,
nsFrameItems& aChildItems,
nsIFrame*& aNewFrame,
PRBool& aIsPseudoParent);
nsresult CreatePseudoTableFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsTableCreator& aTableCreator,
nsFrameConstructorState& aState,
nsIFrame* aParentFrameIn = nsnull);
nsresult CreatePseudoRowGroupFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsTableCreator& aTableCreator,
nsFrameConstructorState& aState,
nsIFrame* aParentFrameIn = nsnull);
nsresult CreatePseudoColGroupFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsTableCreator& aTableCreator,
nsFrameConstructorState& aState,
nsIFrame* aParentFrameIn = nsnull);
nsresult CreatePseudoRowFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsTableCreator& aTableCreator,
nsFrameConstructorState& aState,
nsIFrame* aParentFrameIn = nsnull);
nsresult CreatePseudoCellFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsTableCreator& aTableCreator,
nsFrameConstructorState& aState,
nsIFrame* aParentFrameIn = nsnull);
nsresult GetPseudoTableFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsTableCreator& aTableCreator,
nsFrameConstructorState& aState,
nsIFrame& aParentFrameIn);
nsresult GetPseudoColGroupFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsTableCreator& aTableCreator,
nsFrameConstructorState& aState,
nsIFrame& aParentFrameIn);
nsresult GetPseudoRowGroupFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsTableCreator& aTableCreator,
nsFrameConstructorState& aState,
nsIFrame& aParentFrameIn);
nsresult GetPseudoRowFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsTableCreator& aTableCreator,
nsFrameConstructorState& aState,
nsIFrame& aParentFrameIn);
nsresult GetPseudoCellFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsTableCreator& aTableCreator,
nsFrameConstructorState& aState,
nsIFrame& aParentFrameIn);
nsresult GetParentFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsTableCreator& aTableCreator,
nsIFrame& aParentFrameIn,
nsIAtom* aChildFrameType,
nsFrameConstructorState& aState,
nsIFrame*& aParentFrame,
PRBool& aIsPseudoParent);
nsresult TableProcessChildren(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsTableCreator& aTableCreator,
nsFrameItems& aChildItems,
nsIFrame*& aCaption);
nsresult TableProcessChild(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aChildContent,
nsIContent* aParentContent,
nsIFrame* aParentFrame,
nsIAtom* aParentFrameType,
nsStyleContext* aParentStyleContext,
nsTableCreator& aTableCreator,
nsFrameItems& aChildItems,
nsIFrame*& aCaption);
const nsStyleDisplay* GetDisplay(nsIFrame* aFrame);
// END TABLE SECTION
nsresult CreatePlaceholderFrameFor(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameManager* aFrameManager,
nsIContent* aContent,
nsIFrame* aFrame,
nsStyleContext* aStyleContext,
nsIFrame* aParentFrame,
nsIFrame** aPlaceholderFrame);
nsresult ConstructAlternateFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsIContent* aContent,
nsStyleContext* aStyleContext,
nsIFrame* aGeometricParent,
nsIFrame* aContentParent,
nsIFrame*& aFrame);
nsresult ConstructRadioControlFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsIFrame*& aNewFrame,
nsIContent* aContent,
nsStyleContext* aStyleContext);
nsresult ConstructCheckboxControlFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsIFrame*& aNewFrame,
nsIContent* aContent,
nsStyleContext* aStyleContext);
nsresult ConstructSelectFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsIAtom* aTag,
nsStyleContext* aStyleContext,
nsIFrame*& aNewFrame,
PRBool& aProcessChildren,
const nsStyleDisplay* aStyleDisplay,
PRBool& aFrameHasBeenInitialized,
nsFrameItems& aFrameItems);
nsresult ConstructFieldSetFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsIAtom* aTag,
nsStyleContext* aStyleContext,
nsIFrame*& aNewFrame,
PRBool& aProcessChildren,
const nsStyleDisplay* aStyleDisplay,
PRBool& aFrameHasBeenInitialized);
nsresult ConstructTextFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsStyleContext* aStyleContext,
nsFrameItems& aFrameItems);
nsresult ConstructPageBreakFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsStyleContext* aStyleContext,
nsFrameItems& aFrameItems);
// Construct a page break frame if page-break-before:always is set in aStyleContext
// and add it to aFrameItems. Return true if page-break-after:always is set on aStyleContext.
// Don't do this for row groups, rows or cell, because tables handle those internally.
PRBool PageBreakBefore(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsStyleContext* aStyleContext,
nsFrameItems& aFrameItems);
nsresult ConstructHTMLFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsIAtom* aTag,
PRInt32 aNameSpaceID,
nsStyleContext* aStyleContext,
nsFrameItems& aFrameItems);
nsresult ConstructFrameInternal( nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsIAtom* aTag,
PRInt32 aNameSpaceID,
nsStyleContext* aStyleContext,
nsFrameItems& aFrameItems,
PRBool aXBLBaseTag);
nsresult CreateAnonymousFrames(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsIAtom* aTag,
nsFrameConstructorState& aState,
nsIContent* aParent,
nsIFrame* aNewFrame,
PRBool aAppendToExisting,
nsFrameItems& aChildItems,
PRBool aIsRoot = PR_FALSE);
nsresult CreateAnonymousFrames(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aParent,
nsIDocument* aDocument,
nsIFrame* aNewFrame,
PRBool aAppendToExisting,
nsFrameItems& aChildItems);
//MathML Mod - RBS
#ifdef MOZ_MATHML
nsresult ConstructMathMLFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsIAtom* aTag,
PRInt32 aNameSpaceID,
nsStyleContext* aStyleContext,
nsFrameItems& aFrameItems);
#endif
nsresult ConstructXULFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsIAtom* aTag,
PRInt32 aNameSpaceID,
nsStyleContext* aStyleContext,
nsFrameItems& aFrameItems,
PRBool aXBLBaseTag,
PRBool& aHaltProcessing);
// SVG - rods
#ifdef MOZ_SVG
nsresult TestSVGConditions(nsIContent* aContent,
PRBool& aHasRequiredExtensions,
PRBool& aHasRequiredFeatures,
PRBool& aHasSystemLanguage);
nsresult SVGSwitchProcessChildren(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aFrame,
nsFrameItems& aFrameItems);
nsresult ConstructSVGFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsIAtom* aTag,
PRInt32 aNameSpaceID,
nsStyleContext* aStyleContext,
nsFrameItems& aFrameItems);
#endif
nsresult ConstructFrameByDisplayType(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
const nsStyleDisplay* aDisplay,
nsIContent* aContent,
PRInt32 aNameSpaceID,
nsIAtom* aTag,
nsIFrame* aParentFrame,
nsStyleContext* aStyleContext,
nsFrameItems& aFrameItems);
nsresult ProcessChildren(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aFrame,
PRBool aCanHaveGeneratedContent,
nsFrameItems& aFrameItems,
PRBool aParentIsBlock,
nsTableCreator* aTableCreator = nsnull);
nsresult CreateInputFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsIContent* aContent,
nsIFrame*& aFrame,
nsStyleContext* aStyleContext);
nsresult AddDummyFrameToSelect(nsPresContext* aPresContext,
nsIPresShell* aPresShell,
nsFrameConstructorState& aState,
nsIFrame* aListFrame,
nsIFrame* aParentFrame,
nsFrameItems* aChildItems,
nsIContent* aContainer,
nsIDOMHTMLSelectElement* aSelectElement);
nsresult RemoveDummyFrameFromSelect(nsPresContext* aPresContext,
nsIPresShell* aPresShell,
nsIContent* aContainer,
nsIContent* aChild,
nsIDOMHTMLSelectElement* aSelectElement);
nsIFrame* GetFrameFor(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsIContent* aContent);
nsIFrame* GetAbsoluteContainingBlock(nsPresContext* aPresContext,
nsIFrame* aFrame);
nsIFrame* GetFloatContainingBlock(nsPresContext* aPresContext,
nsIFrame* aFrame);
nsIContent* PropagateScrollToViewport(nsPresContext* aPresContext);
// Build a scroll frame:
// Calls BeginBuildingScrollFrame, InitAndRestoreFrame, and then FinishBuildingScrollFrame
//
// NOTE: this method does NOT set the primary frame for the content element
//
nsresult
BuildScrollFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsStyleContext* aContentStyle,
nsIFrame* aScrolledFrame,
nsIFrame* aParentFrame,
nsIFrame* aContentParentFrame,
nsIFrame*& aNewFrame,
nsStyleContext*& aScrolledChildStyle,
nsIFrame* aScrollPort = nsnull);
// Builds the initial ScrollFrame
already_AddRefed<nsStyleContext>
BeginBuildingScrollFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsStyleContext* aContentStyle,
nsIFrame* aParentFrame,
nsIFrame* aContentParentFrame,
nsIAtom* aScrolledPseudo,
nsIDocument* aDocument,
PRBool aIsRoot,
nsIFrame*& aNewFrame,
nsIFrame*& aScrollableFrame,
nsIFrame* aScrollPort = nsnull);
// Completes the building of the scrollframe:
// Creates and necessary views for the scrollframe and sets up the initial child list
//
nsresult
FinishBuildingScrollFrame(nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aScrollFrame,
nsIFrame* aScrolledFrame,
nsStyleContext* scrolledPseudoStyle);
// Creates a new GfxScrollFrame, Initializes it, and creates a scroll port for it
//
nsresult
InitGfxScrollFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsIDocument* aDocument,
nsIFrame* aParentFrame,
nsIFrame* aContentParentFrame,
nsStyleContext* aStyleContext,
PRBool aIsRoot,
nsIFrame*& aNewFrame,
nsFrameItems& aAnonymousFrames,
nsIFrame* aScrollPort = nsnull);
nsresult
InitializeSelectFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIFrame* scrollFrame,
nsIFrame* scrolledFrame,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsStyleContext* aStyleContext,
PRBool aCreateBlock);
nsresult MaybeRecreateFramesForContent(nsPresContext* aPresContext,
nsIContent* aContent);
nsresult RecreateFramesForContent(nsPresContext* aPresContext,
nsIContent* aContent);
nsresult RecreateFramesOnAttributeChange(nsPresContext* aPresContext,
nsIContent* aContent,
nsIAtom* aAttribute);
nsresult CreateContinuingOuterTableFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsIFrame* aFrame,
nsIFrame* aParentFrame,
nsIContent* aContent,
nsStyleContext* aStyleContext,
nsIFrame** aContinuingFrame);
nsresult CreateContinuingTableFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsIFrame* aFrame,
nsIFrame* aParentFrame,
nsIContent* aContent,
nsStyleContext* aStyleContext,
nsIFrame** aContinuingFrame);
//----------------------------------------
// Methods support creating block frames and their children
static already_AddRefed<nsStyleContext>
GetFirstLetterStyle(nsPresContext* aPresContext,
nsIContent* aContent,
nsStyleContext* aStyleContext);
static already_AddRefed<nsStyleContext>
GetFirstLineStyle(nsPresContext* aPresContext,
nsIContent* aContent,
nsStyleContext* aStyleContext);
static PRBool HaveFirstLetterStyle(nsPresContext* aPresContext,
nsIContent* aContent,
nsStyleContext* aStyleContext);
static PRBool HaveFirstLineStyle(nsPresContext* aPresContext,
nsIContent* aContent,
nsStyleContext* aStyleContext);
static void HaveSpecialBlockStyle(nsPresContext* aPresContext,
nsIContent* aContent,
nsStyleContext* aStyleContext,
PRBool* aHaveFirstLetterStyle,
PRBool* aHaveFirstLineStyle);
PRBool ShouldCreateFirstLetterFrame(nsPresContext* aPresContext,
nsIContent* aContent,
nsIFrame* aFrame);
// |aContentParentFrame| should be null if it's really the same as
// |aParentFrame|.
nsresult ConstructBlock(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
const nsStyleDisplay* aDisplay,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsIFrame* aContentParentFrame,
nsStyleContext* aStyleContext,
nsIFrame* aNewFrame,
PRBool aRelPos);
nsresult ConstructInline(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
const nsStyleDisplay* aDisplay,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsStyleContext* aStyleContext,
PRBool aIsPositioned,
nsIFrame* aNewFrame,
nsIFrame** aNewBlockFrame,
nsIFrame** aNextInlineFrame);
nsresult ProcessInlineChildren(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aFrame,
PRBool aCanHaveGeneratedContent,
nsFrameItems& aFrameItems,
PRBool* aKidsAllInline);
PRBool AreAllKidsInline(nsIFrame* aFrameList);
PRBool WipeContainingBlock(nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIFrame* blockContent,
nsIFrame* aFrame,
nsIFrame* aFrameList);
PRBool NeedSpecialFrameReframe(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsIContent* aParent1,
nsIContent* aParent2,
nsIFrame*& aParentFrame,
nsIContent* aChild,
PRInt32 aIndexInContainer,
nsIFrame*& aPrevSibling,
nsIFrame* aNextSibling);
nsresult SplitToContainingBlock(nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIFrame* aFrame,
nsIFrame* aLeftInlineChildFrame,
nsIFrame* aBlockChildFrame,
nsIFrame* aRightInlineChildFrame,
PRBool aTransfer);
nsresult ReframeContainingBlock(nsPresContext* aPresContext, nsIFrame* aFrame);
nsresult StyleChangeReflow(nsPresContext* aPresContext, nsIFrame* aFrame, nsIAtom* aAttribute);
/** Helper function that searches the immediate child frames
* (and their children if the frames are "special")
* for a frame that maps the specified content object
*
* @param aPresContext the presentation context
* @param aParentFrame the primary frame for aParentContent
* @param aContent the content node for which we seek a frame
* @param aParentContent the parent for aContent
* @param aHint an optional hint used to make the search for aFrame faster
*/
nsIFrame* FindFrameWithContent(nsPresContext* aPresContext,
nsFrameManager* aFrameManager,
nsIFrame* aParentFrame,
nsIContent* aParentContent,
nsIContent* aContent,
nsFindFrameHint* aHint);
//----------------------------------------
// Methods support :first-letter style
nsIContent* FindBlockFor(nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContainer);
void CreateFloatingLetterFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aTextContent,
nsIFrame* aTextFrame,
nsIContent* aBlockContent,
nsIFrame* aParentFrame,
nsStyleContext* aStyleContext,
nsFrameItems& aResult);
nsresult CreateLetterFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aTextContent,
nsIFrame* aParentFrame,
nsFrameItems& aResult);
nsresult WrapFramesInFirstLetterFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aBlockContent,
nsIFrame* aBlockFrame,
nsFrameItems& aBlockFrames);
nsresult WrapFramesInFirstLetterFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIFrame* aParentFrame,
nsIFrame* aParentFrameList,
nsIFrame** aModifiedParent,
nsIFrame** aTextFrame,
nsIFrame** aPrevFrame,
nsFrameItems& aLetterFrame,
PRBool* aStopLooking);
nsresult RecoverLetterFrames(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIFrame* aBlockFrame);
//
nsresult RemoveLetterFrames(nsPresContext* aPresContext,
nsIPresShell* aPresShell,
nsFrameManager* aFrameManager,
nsIFrame* aBlockFrame);
// Recursive helper for RemoveLetterFrames
nsresult RemoveFirstLetterFrames(nsPresContext* aPresContext,
nsIPresShell* aPresShell,
nsFrameManager* aFrameManager,
nsIFrame* aFrame,
PRBool* aStopLooking);
// Special remove method for those pesky floating first-letter frames
nsresult RemoveFloatingFirstLetterFrames(nsPresContext* aPresContext,
nsIPresShell* aPresShell,
nsFrameManager* aFrameManager,
nsIFrame* aBlockFrame,
PRBool* aStopLooking);
// Capture state for the frame tree rooted at the frame associated with the
// content object, aContent
nsresult CaptureStateForFramesOf(nsPresContext* aPresContext,
nsIContent* aContent,
nsILayoutHistoryState* aHistoryState);
// Capture state for the frame tree rooted at aFrame.
nsresult CaptureStateFor(nsPresContext* aPresContext,
nsIFrame* aFrame,
nsILayoutHistoryState* aHistoryState);
//----------------------------------------
// Methods support :first-line style
nsresult WrapFramesInFirstLineFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aFrame,
nsFrameItems& aFrameItems);
nsresult AppendFirstLineFrames(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aBlockFrame,
nsFrameItems& aFrameItems);
nsresult InsertFirstLineFrames(nsPresContext* aPresContext,
nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aBlockFrame,
nsIFrame** aParentFrame,
nsIFrame* aPrevSibling,
nsFrameItems& aFrameItems);
nsresult RemoveFixedItems(nsPresContext* aPresContext,
nsIPresShell* aPresShell,
nsFrameManager* aFrameManager);
// Find the ``rightmost'' frame for the content immediately preceding
// aIndexInContainer, following continuations if necessary. If aChild is
// not null, make sure it passes the call to IsValidSibling
nsIFrame* FindPreviousSibling(nsIPresShell* aPresShell,
nsIContent* aContainer,
nsIFrame* aContainerFrame,
PRInt32 aIndexInContainer,
const nsIContent* aChild = nsnull);
// Find the frame for the content node immediately following aIndexInContainer.
// If aChild is not null, make sure it passes the call to IsValidSibling
nsIFrame* FindNextSibling(nsIPresShell* aPresShell,
nsIContent* aContainer,
nsIFrame* aContainerFrame,
PRInt32 aIndexInContainer,
const nsIContent* aChild = nsnull);
// see if aContent and aSibling are legimiate siblings due to restrictions
// imposed by table columns
PRBool IsValidSibling(nsIPresShell& aPresShell,
nsIFrame* aParentFrame,
const nsIFrame& aSibling,
PRUint8 aSiblingDisplay,
nsIContent& aContent,
PRUint8& aDisplay);
void QuotesDirty() {
if (mUpdateCount != 0)
mQuotesDirty = PR_TRUE;
else
mQuoteList.RecalcAll();
}
public:
struct RestyleData;
friend struct RestyleData;
struct RestyleData {
nsReStyleHint mRestyleHint; // What we want to restyle
nsChangeHint mChangeHint; // The minimal change hint for "self"
};
struct RestyleEnumerateData : public RestyleData {
nsCOMPtr<nsIContent> mContent;
};
struct RestyleEvent;
friend struct RestyleEvent;
struct RestyleEvent : public PLEvent {
RestyleEvent(nsCSSFrameConstructor* aConstructor);
~RestyleEvent() { }
void HandleEvent() {
nsCSSFrameConstructor* constructor =
NS_STATIC_CAST(nsCSSFrameConstructor*, owner);
constructor->ProcessPendingRestyles();
constructor->mRestyleEventQueue = nsnull;
}
};
protected:
nsCOMPtr<nsIEventQueue> mRestyleEventQueue;
private:
nsIDocument* mDocument;
nsIFrame* mInitialContainingBlock;
nsIFrame* mFixedContainingBlock;
nsIFrame* mDocElementContainingBlock;
nsIFrame* mGfxScrollFrame;
nsQuoteList mQuoteList;
PRUint16 mUpdateCount;
PRPackedBool mQuotesDirty;
nsCOMPtr<nsILayoutHistoryState> mTempFrameTreeState;
nsCOMPtr<nsIEventQueueService> mEventQueueService;
nsDataHashtable<nsISupportsHashKey, RestyleData> mPendingRestyles;
static nsIXBLService * gXBLService;
};
#endif /* nsCSSFrameConstructor_h___ */