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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
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsCSSFrameConstructor_h___
#define nsCSSFrameConstructor_h___
#include "nsCOMPtr.h"
#include "nsILayoutHistoryState.h"
#include "nsIXBLService.h"
#include "nsQuoteList.h"
#include "nsCounterManager.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 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 nsFrameConstructorState;
class nsFrameConstructorSaveState;
class nsCSSFrameConstructor
{
public:
nsCSSFrameConstructor(nsIDocument *aDocument, nsIPresShell* aPresShell);
~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
nsXPIDLString& aAltText);
private:
// These are not supported and are not implemented!
nsCSSFrameConstructor(const nsCSSFrameConstructor& aCopy);
nsCSSFrameConstructor& operator=(const nsCSSFrameConstructor& aCopy);
public:
// XXXbz this method needs to actually return errors!
nsresult ConstructRootFrame(nsIContent* aDocElement,
nsIFrame** aNewFrame);
nsresult ReconstructDocElementHierarchy();
nsresult ContentAppended(nsIContent* aContainer,
PRInt32 aNewIndexInContainer);
nsresult ContentInserted(nsIContent* aContainer,
nsIFrame* aContainerFrame,
nsIContent* aChild,
PRInt32 aIndexInContainer,
nsILayoutHistoryState* aFrameState,
PRBool aInReinsertContent);
nsresult ContentRemoved(nsIContent* aContainer,
nsIContent* aChild,
PRInt32 aIndexInContainer,
PRBool aInReinsertContent);
nsresult CharacterDataChanged(nsIContent* aContent,
PRBool aAppend);
nsresult ContentStatesChanged(nsIContent* aContent1,
nsIContent* aContent2,
PRInt32 aStateMask);
// Should be called when a frame is going to be destroyed and
// WillDestroyFrameTree hasn't been called yet.
void NotifyDestroyingFrame(nsIFrame* aFrame);
nsresult AttributeChanged(nsIContent* aContent,
PRInt32 aNameSpaceID,
nsIAtom* aAttribute,
PRInt32 aModType);
void BeginUpdate() { ++mUpdateCount; }
void EndUpdate();
void RecalcQuotesAndCounters();
void WillDestroyFrameTree();
// Note: It's the caller's responsibility to make sure to wrap a
// ProcessRestyledFrames call in a view update batch.
// This function does not call ProcessAttachedQueue() on the binding manager.
// If the caller wants that to happen synchronously, it needs to handle that
// itself.
nsresult ProcessRestyledFrames(nsStyleChangeList& aRestyleArray);
private:
// This function does not call ProcessAttachedQueue() on the binding manager.
// If the caller wants that to happen synchronously, it needs to handle that
// itself.
void ProcessOneRestyle(nsIContent* aContent, nsReStyleHint aRestyleHint,
nsChangeHint aChangeHint);
public:
// This function does not call ProcessAttachedQueue() on the binding manager.
// If the caller wants that to happen synchronously, it needs to handle that
// itself.
void ProcessPendingRestyles();
void PostRestyleEvent(nsIContent* aContent, nsReStyleHint aRestyleHint,
nsChangeHint aMinChangeHint);
// Notification that we were unable to render a replaced element.
nsresult CantRenderReplacedElement(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(nsFrameManager* aFrameManager,
nsIContent* aContent,
nsIFrame** aFrame,
nsFindFrameHint* aHint);
// Get the XBL insertion point for a child
nsresult GetInsertionPoint(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(nsIFrame* aRemovedFrame,
nsILayoutHistoryState* aFrameState);
nsIFrame* GetInitialContainingBlock() { return mInitialContainingBlock; }
nsIFrame* GetPageSequenceFrame() { return mPageSequenceFrame; }
private:
nsresult ReinsertContent(nsIContent* aContainer,
nsIContent* aChild);
nsresult ConstructPageFrame(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsIFrame* aParentFrame,
nsIFrame* aPrevPageFrame,
nsIFrame*& aPageFrame,
nsIFrame*& aPageContentFrame);
void DoContentStateChanged(nsIContent* aContent,
PRInt32 aStateMask);
private:
/* aMinHint is the minimal change that should be made to the element */
void RestyleElement(nsIContent* aContent,
nsIFrame* aPrimaryFrame,
nsChangeHint aMinHint);
void RestyleLaterSiblings(nsIContent* aContent);
nsresult InitAndRestoreFrame (const nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsStyleContext* aStyleContext,
nsIFrame* aPrevInFlow,
nsIFrame* aNewFrame,
PRBool aAllowCounters = PR_TRUE);
already_AddRefed<nsStyleContext>
ResolveStyleContext(nsIFrame* aParentFrame,
nsIContent* aContent);
nsresult ConstructFrame(nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsFrameItems& aFrameItems);
nsresult ConstructDocElementFrame(nsFrameConstructorState& aState,
nsIContent* aDocElement,
nsIFrame* aParentFrame,
nsIFrame** aNewFrame);
nsresult ConstructDocElementTableFrame(nsIContent* aDocElement,
nsIFrame* aParentFrame,
nsIFrame** aNewTableFrame,
nsFrameConstructorState& aState);
nsresult CreateGeneratedFrameFor(nsIFrame* aParentFrame,
nsIContent* aContent,
nsStyleContext* aStyleContext,
const nsStyleContent* aStyleContent,
PRUint32 aContentIndex,
nsIFrame** aFrame);
PRBool CreateGeneratedContentFrame(nsFrameConstructorState& aState,
nsIFrame* aFrame,
nsIContent* aContent,
nsStyleContext* aStyleContext,
nsIAtom* aPseudoElement,
nsIFrame** aResult);
nsresult AppendFrames(const nsFrameConstructorState& aState,
nsIContent* aContainer,
nsIFrame* aParentFrame,
nsIFrame* aFrameList,
nsIFrame* aAfterFrame);
// BEGIN TABLE SECTION
/**
* ConstructTableFrame will construct the outer and inner table frames and
* return them. Unless aIsPseudo is PR_TRUE, it will put the inner frame in
* the child list of the outer frame, and will put any pseudo frames it had
* to create into aChildItems. The newly-created outer frame will either be
* in aChildItems or a descendant of a pseudo in aChildItems (unless it's
* positioned or floated, in which case its placeholder will be in
* aChildItems). If aAllowOutOfFlow is false, the table frame will be forced
* to be in-flow no matter what its float or position values are.
*/
nsresult ConstructTableFrame(nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aContentParent,
nsStyleContext* aStyleContext,
nsTableCreator& aTableCreator,
PRBool aIsPseudo,
nsFrameItems& aChildItems,
PRBool aAllowOutOfFlow,
nsIFrame*& aNewOuterFrame,
nsIFrame*& aNewInnerFrame);
nsresult ConstructTableCaptionFrame(nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParent,
nsStyleContext* aStyleContext,
nsTableCreator& aTableCreator,
nsFrameItems& aChildItems,
nsIFrame*& aNewFrame,
PRBool& aIsPseudoParent);
nsresult ConstructTableRowGroupFrame(nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParent,
nsStyleContext* aStyleContext,
nsTableCreator& aTableCreator,
PRBool aIsPseudo,
nsFrameItems& aChildItems,
nsIFrame*& aNewFrame,
PRBool& aIsPseudoParent);
nsresult ConstructTableColGroupFrame(nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParent,
nsStyleContext* aStyleContext,
nsTableCreator& aTableCreator,
PRBool aIsPseudo,
nsFrameItems& aChildItems,
nsIFrame*& aNewFrame,
PRBool& aIsPseudoParent);
nsresult ConstructTableRowFrame(nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParent,
nsStyleContext* aStyleContext,
nsTableCreator& aTableCreator,
PRBool aIsPseudo,
nsFrameItems& aChildItems,
nsIFrame*& aNewFrame,
PRBool& aIsPseudoParent);
nsresult ConstructTableColFrame(nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParent,
nsStyleContext* aStyleContext,
nsTableCreator& aTableCreator,
PRBool aIsPseudo,
nsFrameItems& aChildItems,
nsIFrame*& aNewFrame,
PRBool& aIsPseudoParent);
nsresult ConstructTableCellFrame(nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsStyleContext* aStyleContext,
nsTableCreator& aTableCreator,
PRBool aIsPseudo,
nsFrameItems& aChildItems,
nsIFrame*& aNewCellOuterFrame,
nsIFrame*& aNewCellInnerFrame,
PRBool& aIsPseudoParent);
/**
* ConstructTableForeignFrame constructs the frame for a non-table-element
* child of a table-element frame (where "table-element" can mean rows,
* cells, etc). This function will insert the new frame in the right child
* list automatically, create placeholders for it in the right places as
* needed, etc (hence does not return the new frame).
*/
nsresult ConstructTableForeignFrame(nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrameIn,
nsStyleContext* aStyleContext,
nsTableCreator& aTableCreator,
nsFrameItems& aChildItems);
nsresult CreatePseudoTableFrame(nsTableCreator& aTableCreator,
nsFrameConstructorState& aState,
nsIFrame* aParentFrameIn = nsnull);
nsresult CreatePseudoRowGroupFrame(nsTableCreator& aTableCreator,
nsFrameConstructorState& aState,
nsIFrame* aParentFrameIn = nsnull);
nsresult CreatePseudoColGroupFrame(nsTableCreator& aTableCreator,
nsFrameConstructorState& aState,
nsIFrame* aParentFrameIn = nsnull);
nsresult CreatePseudoRowFrame(nsTableCreator& aTableCreator,
nsFrameConstructorState& aState,
nsIFrame* aParentFrameIn = nsnull);
nsresult CreatePseudoCellFrame(nsTableCreator& aTableCreator,
nsFrameConstructorState& aState,
nsIFrame* aParentFrameIn = nsnull);
nsresult GetPseudoTableFrame(nsTableCreator& aTableCreator,
nsFrameConstructorState& aState,
nsIFrame& aParentFrameIn);
nsresult GetPseudoColGroupFrame(nsTableCreator& aTableCreator,
nsFrameConstructorState& aState,
nsIFrame& aParentFrameIn);
nsresult GetPseudoRowGroupFrame(nsTableCreator& aTableCreator,
nsFrameConstructorState& aState,
nsIFrame& aParentFrameIn);
nsresult GetPseudoRowFrame(nsTableCreator& aTableCreator,
nsFrameConstructorState& aState,
nsIFrame& aParentFrameIn);
nsresult GetPseudoCellFrame(nsTableCreator& aTableCreator,
nsFrameConstructorState& aState,
nsIFrame& aParentFrameIn);
nsresult GetParentFrame(nsTableCreator& aTableCreator,
nsIFrame& aParentFrameIn,
nsIAtom* aChildFrameType,
nsFrameConstructorState& aState,
nsIFrame*& aParentFrame,
PRBool& aIsPseudoParent);
/**
* Function to adjust aParentFrame and aFrameItems to deal with table
* pseudo-frames that may have to be inserted.
* @param aChildContent the content node we want to construct a frame for
* @param aChildDisplay the display struct for aChildContent
* @param aParentFrame the frame we think should be the parent. This will be
* adjusted to point to a pseudo-frame if needed.
* @param aTag tag that would be used for frame construction
* @param aNameSpaceID namespace that will be used for frame construction
* @param aFrameItems the framelist we think we need to put the child frame
* into. If we have to construct pseudo-frames, we'll modify the
* pointer to point to the list the child frame should go into.
* @param aState the nsFrameConstructorState we're using.
* @param aSaveState the nsFrameConstructorSaveState we can use for pushing a
* float containing block if we have to do it.
* @param aCreatedPseudo whether we had to create a pseudo-parent
* @return NS_OK on success, NS_ERROR_OUT_OF_MEMORY and such as needed.
*/
// XXXbz this function should really go away once we rework pseudo-frame
// handling to be better. This should simply be part of the job of
// GetGeometricParent, and stuff like the frameitems and parent frame should
// be kept track of in the state...
nsresult AdjustParentFrame(nsIContent* aChildContent,
const nsStyleDisplay* aChildDisplay,
nsIAtom* aTag,
PRInt32 aNameSpaceID,
nsStyleContext* aChildStyle,
nsIFrame* & aParentFrame,
nsFrameItems* & aFrameItems,
nsFrameConstructorState& aState,
nsFrameConstructorSaveState& aSaveState,
PRBool& aCreatedPseudo);
nsresult TableProcessChildren(nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsTableCreator& aTableCreator,
nsFrameItems& aChildItems,
nsIFrame*& aCaption);
nsresult TableProcessChild(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
protected:
static nsresult CreatePlaceholderFrameFor(nsIPresShell* aPresShell,
nsPresContext* aPresContext,
nsFrameManager* aFrameManager,
nsIContent* aContent,
nsIFrame* aFrame,
nsStyleContext* aStyleContext,
nsIFrame* aParentFrame,
nsIFrame** aPlaceholderFrame);
private:
nsresult ConstructAlternateFrame(nsIContent* aContent,
nsStyleContext* aStyleContext,
nsIFrame* aGeometricParent,
nsIFrame* aContentParent,
nsIFrame*& aFrame);
// @param OUT aNewFrame the new radio control frame
nsresult ConstructRadioControlFrame(nsIFrame** aNewFrame,
nsIContent* aContent,
nsStyleContext* aStyleContext);
// @param OUT aNewFrame the new checkbox control frame
nsresult ConstructCheckboxControlFrame(nsIFrame** aNewFrame,
nsIContent* aContent,
nsStyleContext* aStyleContext);
// ConstructSelectFrame puts the new frame in aFrameItems and
// handles the kids of the select.
nsresult ConstructSelectFrame(nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsIAtom* aTag,
nsStyleContext* aStyleContext,
nsIFrame*& aNewFrame,
const nsStyleDisplay* aStyleDisplay,
PRBool& aFrameHasBeenInitialized,
nsFrameItems& aFrameItems);
// ConstructFieldSetFrame puts the new frame in aFrameItems and
// handles the kids of the fieldset
nsresult ConstructFieldSetFrame(nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsIAtom* aTag,
nsStyleContext* aStyleContext,
nsIFrame*& aNewFrame,
nsFrameItems& aFrameItems,
const nsStyleDisplay* aStyleDisplay,
PRBool& aFrameHasBeenInitialized);
nsresult ConstructTextFrame(nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsStyleContext* aStyleContext,
nsFrameItems& aFrameItems,
PRBool aPseudoParent);
nsresult ConstructPageBreakFrame(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(nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsStyleContext* aStyleContext,
nsFrameItems& aFrameItems);
nsresult ConstructHTMLFrame(nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsIAtom* aTag,
PRInt32 aNameSpaceID,
nsStyleContext* aStyleContext,
nsFrameItems& aFrameItems,
PRBool aHasPseudoParent);
nsresult ConstructFrameInternal( nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsIAtom* aTag,
PRInt32 aNameSpaceID,
nsStyleContext* aStyleContext,
nsFrameItems& aFrameItems,
PRBool aXBLBaseTag);
nsresult CreateAnonymousFrames(nsIAtom* aTag,
nsFrameConstructorState& aState,
nsIContent* aParent,
nsIFrame* aNewFrame,
PRBool aAppendToExisting,
nsFrameItems& aChildItems,
PRBool aIsRoot = PR_FALSE);
nsresult CreateAnonymousFrames(nsFrameConstructorState& aState,
nsIContent* aParent,
nsIDocument* aDocument,
nsIFrame* aNewFrame,
PRBool aForceBindingParent,
PRBool aAppendToExisting,
nsFrameItems& aChildItems,
nsIFrame* aAnonymousCreator,
nsIContent* aInsertionNode,
PRBool aAnonymousParentIsBlock);
//MathML Mod - RBS
#ifdef MOZ_MATHML
nsresult ConstructMathMLFrame(nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsIAtom* aTag,
PRInt32 aNameSpaceID,
nsStyleContext* aStyleContext,
nsFrameItems& aFrameItems,
PRBool aHasPseudoParent);
#endif
nsresult ConstructXULFrame(nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsIAtom* aTag,
PRInt32 aNameSpaceID,
nsStyleContext* aStyleContext,
nsFrameItems& aFrameItems,
PRBool aXBLBaseTag,
PRBool aHasPseudoParent,
PRBool* aHaltProcessing);
// XTF
#ifdef MOZ_XTF
nsresult ConstructXTFFrame(nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsIAtom* aTag,
PRInt32 aNameSpaceID,
nsStyleContext* aStyleContext,
nsFrameItems& aFrameItems,
PRBool aHasPseudoParent);
#endif
// SVG - rods
#ifdef MOZ_SVG
nsresult TestSVGConditions(nsIContent* aContent,
PRBool& aHasRequiredExtensions,
PRBool& aHasRequiredFeatures,
PRBool& aHasSystemLanguage);
nsresult SVGSwitchProcessChildren(nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aFrame,
nsFrameItems& aFrameItems);
nsresult ConstructSVGFrame(nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsIAtom* aTag,
PRInt32 aNameSpaceID,
nsStyleContext* aStyleContext,
nsFrameItems& aFrameItems,
PRBool aHasPseudoParent,
PRBool* aHaltProcessing);
#endif
nsresult ConstructFrameByDisplayType(nsFrameConstructorState& aState,
const nsStyleDisplay* aDisplay,
nsIContent* aContent,
PRInt32 aNameSpaceID,
nsIAtom* aTag,
nsIFrame* aParentFrame,
nsStyleContext* aStyleContext,
nsFrameItems& aFrameItems,
PRBool aHasPseudoParent);
nsresult ProcessChildren(nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aFrame,
PRBool aCanHaveGeneratedContent,
nsFrameItems& aFrameItems,
PRBool aParentIsBlock,
nsTableCreator* aTableCreator = nsnull);
// @param OUT aFrame the newly created frame
nsresult CreateInputFrame(nsIContent* aContent,
nsIFrame** aFrame,
nsStyleContext* aStyleContext);
nsresult AddDummyFrameToSelect(nsFrameConstructorState& aState,
nsIFrame* aListFrame,
nsIFrame* aParentFrame,
nsFrameItems* aChildItems,
nsIContent* aContainer,
nsIDOMHTMLSelectElement* aSelectElement);
nsresult RemoveDummyFrameFromSelect(nsIContent* aContainer,
nsIContent* aChild,
nsIDOMHTMLSelectElement* aSelectElement);
nsIFrame* GetFrameFor(nsIContent* aContent);
nsIFrame* GetAbsoluteContainingBlock(nsIFrame* aFrame);
nsIFrame* GetFloatContainingBlock(nsIFrame* aFrame);
nsIContent* PropagateScrollToViewport();
// Build a scroll frame:
// Calls BeginBuildingScrollFrame, InitAndRestoreFrame, and then FinishBuildingScrollFrame.
// Sets the primary frame for the content to the output aNewFrame.
// @param aNewFrame the created scrollframe --- output only
nsresult
BuildScrollFrame(nsFrameConstructorState& aState,
nsIContent* aContent,
nsStyleContext* aContentStyle,
nsIFrame* aScrolledFrame,
nsIFrame* aParentFrame,
nsIFrame* aContentParentFrame,
nsIFrame*& aNewFrame,
nsStyleContext*& aScrolledChildStyle);
// Builds the initial ScrollFrame
already_AddRefed<nsStyleContext>
BeginBuildingScrollFrame(nsFrameConstructorState& aState,
nsIContent* aContent,
nsStyleContext* aContentStyle,
nsIFrame* aParentFrame,
nsIFrame* aContentParentFrame,
nsIAtom* aScrolledPseudo,
PRBool aIsRoot,
nsIFrame*& aNewFrame);
// Completes the building of the scrollframe:
// Creates a view for the scrolledframe and makes it the child of the scrollframe.
void
FinishBuildingScrollFrame(nsIFrame* aScrollFrame,
nsIFrame* aScrolledFrame);
// InitializeSelectFrame puts scrollFrame in aFrameItems if aBuildCombobox is false
nsresult
InitializeSelectFrame(nsFrameConstructorState& aState,
nsIFrame* scrollFrame,
nsIFrame* scrolledFrame,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsStyleContext* aStyleContext,
PRBool aBuildCombobox,
nsFrameItems& aFrameItems);
nsresult MaybeRecreateFramesForContent(nsIContent* aContent);
nsresult RecreateFramesForContent(nsIContent* aContent);
PRBool MaybeRecreateContainerForIBSplitterFrame(nsIFrame* aFrame, nsresult* aResult);
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
already_AddRefed<nsStyleContext>
GetFirstLetterStyle(nsIContent* aContent,
nsStyleContext* aStyleContext);
already_AddRefed<nsStyleContext>
GetFirstLineStyle(nsIContent* aContent,
nsStyleContext* aStyleContext);
PRBool HaveFirstLetterStyle(nsIContent* aContent,
nsStyleContext* aStyleContext);
// Check whether a given block has first-letter style. Make sure to
// only pass in blocks! And don't pass in null either.
PRBool HaveFirstLetterStyle(nsIFrame* aBlockFrame);
PRBool HaveFirstLineStyle(nsIContent* aContent,
nsStyleContext* aStyleContext);
void HaveSpecialBlockStyle(nsIContent* aContent,
nsStyleContext* aStyleContext,
PRBool* aHaveFirstLetterStyle,
PRBool* aHaveFirstLineStyle);
// |aContentParentFrame| should be null if it's really the same as
// |aParentFrame|.
// @param aFrameItems where we want to put the block in case it's in-flow.
// @param aNewFrame an in/out parameter. On input it is the block to be
// constructed. On output it is reset to the outermost
// frame constructed (e.g. if we need to wrap the block in an
// nsColumnSetFrame.
// @param aParentFrame is the desired parent for the (possibly wrapped)
// block
// @param aContentParent is the parent the block would have if it
// were in-flow
nsresult ConstructBlock(nsFrameConstructorState& aState,
const nsStyleDisplay* aDisplay,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsIFrame* aContentParentFrame,
nsStyleContext* aStyleContext,
nsIFrame** aNewFrame,
nsFrameItems& aFrameItems,
PRBool aAbsPosContainer);
nsresult ConstructInline(nsFrameConstructorState& aState,
const nsStyleDisplay* aDisplay,
nsIContent* aContent,
nsIFrame* aParentFrame,
nsStyleContext* aStyleContext,
PRBool aIsPositioned,
nsIFrame* aNewFrame);
nsresult ProcessInlineChildren(nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aFrame,
PRBool aCanHaveGeneratedContent,
nsFrameItems& aFrameItems,
PRBool* aKidsAllInline);
PRBool AreAllKidsInline(nsIFrame* aFrameList);
PRBool WipeContainingBlock(nsFrameConstructorState& aState,
nsIFrame* blockContent,
nsIFrame* aFrame,
nsIFrame* aFrameList);
PRBool NeedSpecialFrameReframe(nsIContent* aParent1,
nsIContent* aParent2,
nsIFrame*& aParentFrame,
nsIContent* aChild,
PRInt32 aIndexInContainer,
nsIFrame*& aPrevSibling,
nsIFrame* aNextSibling);
nsresult SplitToContainingBlock(nsFrameConstructorState& aState,
nsIFrame* aFrame,
nsIFrame* aLeftInlineChildFrame,
nsIFrame* aBlockChildFrame,
nsIFrame* aRightInlineChildFrame,
PRBool aTransfer);
nsresult ReframeContainingBlock(nsIFrame* aFrame);
nsresult StyleChangeReflow(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 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(nsFrameManager* aFrameManager,
nsIFrame* aParentFrame,
nsIContent* aParentContent,
nsIContent* aContent,
nsFindFrameHint* aHint);
//----------------------------------------
// Methods support :first-letter style
void CreateFloatingLetterFrame(nsFrameConstructorState& aState,
nsIContent* aTextContent,
nsIFrame* aTextFrame,
nsIContent* aBlockContent,
nsIFrame* aParentFrame,
nsStyleContext* aStyleContext,
nsFrameItems& aResult);
nsresult CreateLetterFrame(nsFrameConstructorState& aState,
nsIContent* aTextContent,
nsIFrame* aParentFrame,
nsFrameItems& aResult);
nsresult WrapFramesInFirstLetterFrame(nsFrameConstructorState& aState,
nsIContent* aBlockContent,
nsIFrame* aBlockFrame,
nsFrameItems& aBlockFrames);
nsresult WrapFramesInFirstLetterFrame(nsFrameConstructorState& aState,
nsIFrame* aParentFrame,
nsIFrame* aParentFrameList,
nsIFrame** aModifiedParent,
nsIFrame** aTextFrame,
nsIFrame** aPrevFrame,
nsFrameItems& aLetterFrame,
PRBool* aStopLooking);
nsresult RecoverLetterFrames(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(nsIContent* aContent,
nsILayoutHistoryState* aHistoryState);
// Capture state for the frame tree rooted at aFrame.
nsresult CaptureStateFor(nsIFrame* aFrame,
nsILayoutHistoryState* aHistoryState);
//----------------------------------------
// Methods support :first-line style
nsresult WrapFramesInFirstLineFrame(nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aFrame,
nsFrameItems& aFrameItems);
nsresult AppendFirstLineFrames(nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aBlockFrame,
nsFrameItems& aFrameItems);
nsresult InsertFirstLineFrames(nsFrameConstructorState& aState,
nsIContent* aContent,
nsIFrame* aBlockFrame,
nsIFrame** aParentFrame,
nsIFrame* aPrevSibling,
nsFrameItems& aFrameItems);
nsresult RemoveFixedItems(const nsFrameConstructorState& aState);
// 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(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(nsIContent* aContainer,
nsIFrame* aContainerFrame,
PRInt32 aIndexInContainer,
const nsIContent* aChild = nsnull);
// see if aContent and aSibling are legitimate siblings due to restrictions
// imposed by table columns
PRBool IsValidSibling(nsIFrame* aParentFrame,
const nsIFrame& aSibling,
PRUint8 aSiblingDisplay,
nsIContent& aContent,
PRUint8& aDisplay);
void QuotesDirty() {
if (mUpdateCount != 0)
mQuotesDirty = PR_TRUE;
else
mQuoteList.RecalcAll();
}
void CountersDirty() {
if (mUpdateCount != 0)
mCountersDirty = PR_TRUE;
else
mCounterManager.RecalcAll();
}
inline NS_HIDDEN_(nsresult)
CreateInsertionPointChildren(nsFrameConstructorState &aState,
nsIFrame *aNewFrame,
nsIContent *aContent,
PRBool aUseInsertionFrame = PR_TRUE);
NS_HIDDEN_(nsresult)
CreateInsertionPointChildren(nsFrameConstructorState &aState,
nsIFrame *aNewFrame,
PRBool aUseInsertionFrame);
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();
};
friend class nsFrameConstructorState;
protected:
nsCOMPtr<nsIEventQueue> mRestyleEventQueue;
private:
#ifdef ACCESSIBILITY
// If the frame is visible, return the frame type
// If the frame is invisible, return nsnull
nsIAtom *GetRenderedFrameType(nsIFrame *aFrame);
// Using the rendered frame type from GetRenderedFrameType(), which is nsnull
// for invisible frames, compare the previous rendering and new rendering, to
// determine if the tree of accessibility objects may change. If it might,
// notify the accessibility module of the change, and whether it is a generic
// change, something is being made visible or something is being made hidden.
void NotifyAccessibleChange(nsIAtom *aPreviousFrameType, nsIAtom *aFrameType,
nsIContent *aContent);
#endif
nsIDocument* mDocument; // Weak ref
nsIPresShell* mPresShell; // Weak ref
nsIFrame* mInitialContainingBlock;
nsIFrame* mFixedContainingBlock;
nsIFrame* mDocElementContainingBlock;
nsIFrame* mGfxScrollFrame;
nsIFrame* mPageSequenceFrame;
nsQuoteList mQuoteList;
nsCounterManager mCounterManager;
PRUint16 mUpdateCount;
PRPackedBool mQuotesDirty : 1;
PRPackedBool mCountersDirty : 1;
PRPackedBool mInitialContainingBlockIsAbsPosContainer : 1;
PRPackedBool mIsDestroyingFrameTree : 1;
nsCOMPtr<nsILayoutHistoryState> mTempFrameTreeState;
nsCOMPtr<nsIEventQueueService> mEventQueueService;
nsDataHashtable<nsISupportsHashKey, RestyleData> mPendingRestyles;
static nsIXBLService * gXBLService;
};
#endif /* nsCSSFrameConstructor_h___ */
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