mirror of
https://github.com/mozilla/gecko-dev.git
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743 lines
26 KiB
C++
743 lines
26 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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#include "nsIStyleSet.h"
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#include "nsIStyleSheet.h"
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#include "nsIStyleRule.h"
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#include "nsIStyleContext.h"
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#include "nsISupportsArray.h"
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#include "nsIFrame.h"
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//#include "nsHashtable.h"
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#include "nsIPresContext.h"
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#include "nsIPresShell.h"
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#include "nsIContent.h"
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#include "nsIStyleFrameConstruction.h"
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static NS_DEFINE_IID(kIStyleSetIID, NS_ISTYLE_SET_IID);
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static NS_DEFINE_IID(kIStyleFrameConstructionIID, NS_ISTYLE_FRAME_CONSTRUCTION_IID);
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class StyleSetImpl : public nsIStyleSet {
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public:
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StyleSetImpl();
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NS_DECL_ISUPPORTS
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virtual void AppendOverrideStyleSheet(nsIStyleSheet* aSheet);
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virtual void InsertOverrideStyleSheetAfter(nsIStyleSheet* aSheet,
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nsIStyleSheet* aAfterSheet);
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virtual void InsertOverrideStyleSheetBefore(nsIStyleSheet* aSheet,
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nsIStyleSheet* aBeforeSheet);
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virtual void RemoveOverrideStyleSheet(nsIStyleSheet* aSheet);
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virtual PRInt32 GetNumberOfOverrideStyleSheets();
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virtual nsIStyleSheet* GetOverrideStyleSheetAt(PRInt32 aIndex);
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virtual void AppendDocStyleSheet(nsIStyleSheet* aSheet);
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virtual void InsertDocStyleSheetAfter(nsIStyleSheet* aSheet,
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nsIStyleSheet* aAfterSheet);
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virtual void InsertDocStyleSheetBefore(nsIStyleSheet* aSheet,
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nsIStyleSheet* aBeforeSheet);
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virtual void RemoveDocStyleSheet(nsIStyleSheet* aSheet);
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virtual PRInt32 GetNumberOfDocStyleSheets();
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virtual nsIStyleSheet* GetDocStyleSheetAt(PRInt32 aIndex);
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virtual void AppendBackstopStyleSheet(nsIStyleSheet* aSheet);
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virtual void InsertBackstopStyleSheetAfter(nsIStyleSheet* aSheet,
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nsIStyleSheet* aAfterSheet);
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virtual void InsertBackstopStyleSheetBefore(nsIStyleSheet* aSheet,
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nsIStyleSheet* aBeforeSheet);
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virtual void RemoveBackstopStyleSheet(nsIStyleSheet* aSheet);
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virtual PRInt32 GetNumberOfBackstopStyleSheets();
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virtual nsIStyleSheet* GetBackstopStyleSheetAt(PRInt32 aIndex);
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virtual nsIStyleContext* ResolveStyleFor(nsIPresContext* aPresContext,
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nsIContent* aContent,
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nsIStyleContext* aParentContext,
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PRBool aForceUnique = PR_FALSE);
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virtual nsIStyleContext* ResolvePseudoStyleFor(nsIPresContext* aPresContext,
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nsIContent* aParentContent,
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nsIAtom* aPseudoTag,
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nsIStyleContext* aParentContext,
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PRBool aForceUnique = PR_FALSE);
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virtual nsIStyleContext* ProbePseudoStyleFor(nsIPresContext* aPresContext,
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nsIContent* aParentContent,
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nsIAtom* aPseudoTag,
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nsIStyleContext* aParentContext,
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PRBool aForceUnique = PR_FALSE);
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NS_IMETHODIMP ConstructFrame(nsIPresContext* aPresContext,
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nsIContent* aContent,
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nsIFrame* aParentFrame,
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nsIFrame*& aFrameSubTree);
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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 AttributeChanged(nsIPresContext* aPresContext,
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nsIContent* aChild,
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nsIAtom* aAttribute,
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PRInt32 aHint); // See nsStyleConsts fot hint values
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// xxx style rules enumeration
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virtual void List(FILE* out = stdout, PRInt32 aIndent = 0);
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private:
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// These are not supported and are not implemented!
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StyleSetImpl(const StyleSetImpl& aCopy);
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StyleSetImpl& operator=(const StyleSetImpl& aCopy);
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protected:
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virtual ~StyleSetImpl();
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PRBool EnsureArray(nsISupportsArray** aArray);
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nsIStyleContext* GetContext(nsIPresContext* aPresContext, nsIStyleContext* aParentContext,
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nsIAtom* aPseudoTag, nsISupportsArray* aRules, PRBool aForceUnique,
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PRBool& aUsedRules);
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PRInt32 RulesMatching(nsISupportsArray* aSheets,
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nsIPresContext* aPresContext,
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nsIContent* aContent,
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nsIStyleContext* aParentContext,
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nsISupportsArray* aResults);
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PRInt32 RulesMatching(nsISupportsArray* aSheets,
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nsIPresContext* aPresContext,
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nsIContent* aParentContent,
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nsIAtom* aPseudoTag,
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nsIStyleContext* aParentContext,
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nsISupportsArray* aResults);
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void List(FILE* out, PRInt32 aIndent, nsISupportsArray* aSheets);
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void ListContexts(nsIStyleContext* aRootContext, FILE* out, PRInt32 aIndent);
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nsISupportsArray* mOverrideSheets;
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nsISupportsArray* mDocSheets;
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nsISupportsArray* mBackstopSheets;
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nsISupportsArray* mRecycler;
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nsIStyleFrameConstruction* mFrameConstructor;
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};
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StyleSetImpl::StyleSetImpl()
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: mOverrideSheets(nsnull),
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mDocSheets(nsnull),
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mBackstopSheets(nsnull),
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mFrameConstructor(nsnull),
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mRecycler(nsnull)
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{
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NS_INIT_REFCNT();
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}
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StyleSetImpl::~StyleSetImpl()
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{
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NS_IF_RELEASE(mOverrideSheets);
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NS_IF_RELEASE(mDocSheets);
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NS_IF_RELEASE(mBackstopSheets);
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NS_IF_RELEASE(mFrameConstructor);
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NS_IF_RELEASE(mRecycler);
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}
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NS_IMPL_ISUPPORTS(StyleSetImpl, kIStyleSetIID)
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PRBool StyleSetImpl::EnsureArray(nsISupportsArray** aArray)
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{
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if (nsnull == *aArray) {
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if (NS_OK != NS_NewISupportsArray(aArray)) {
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return PR_FALSE;
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}
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}
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return PR_TRUE;
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}
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// ----- Override sheets
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void StyleSetImpl::AppendOverrideStyleSheet(nsIStyleSheet* aSheet)
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{
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NS_PRECONDITION(nsnull != aSheet, "null arg");
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if (EnsureArray(&mOverrideSheets)) {
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mOverrideSheets->AppendElement(aSheet);
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}
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}
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void StyleSetImpl::InsertOverrideStyleSheetAfter(nsIStyleSheet* aSheet,
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nsIStyleSheet* aAfterSheet)
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{
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NS_PRECONDITION(nsnull != aSheet, "null arg");
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if (EnsureArray(&mOverrideSheets)) {
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PRInt32 index = mOverrideSheets->IndexOf(aAfterSheet);
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mOverrideSheets->InsertElementAt(aSheet, ++index);
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}
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}
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void StyleSetImpl::InsertOverrideStyleSheetBefore(nsIStyleSheet* aSheet,
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nsIStyleSheet* aBeforeSheet)
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{
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NS_PRECONDITION(nsnull != aSheet, "null arg");
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if (EnsureArray(&mOverrideSheets)) {
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PRInt32 index = mOverrideSheets->IndexOf(aBeforeSheet);
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mOverrideSheets->InsertElementAt(aSheet, ((-1 < index) ? index : 0));
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}
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}
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void StyleSetImpl::RemoveOverrideStyleSheet(nsIStyleSheet* aSheet)
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{
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NS_PRECONDITION(nsnull != aSheet, "null arg");
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if (nsnull != mOverrideSheets) {
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mOverrideSheets->RemoveElement(aSheet);
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}
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}
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PRInt32 StyleSetImpl::GetNumberOfOverrideStyleSheets()
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{
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if (nsnull != mOverrideSheets) {
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return mOverrideSheets->Count();
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}
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return 0;
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}
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nsIStyleSheet* StyleSetImpl::GetOverrideStyleSheetAt(PRInt32 aIndex)
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{
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nsIStyleSheet* sheet = nsnull;
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if (nsnull == mOverrideSheets) {
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sheet = (nsIStyleSheet*)mOverrideSheets->ElementAt(aIndex);
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}
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return sheet;
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}
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// -------- Doc Sheets
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void StyleSetImpl::AppendDocStyleSheet(nsIStyleSheet* aSheet)
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{
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NS_PRECONDITION(nsnull != aSheet, "null arg");
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if (EnsureArray(&mDocSheets)) {
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mDocSheets->AppendElement(aSheet);
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if (nsnull == mFrameConstructor) {
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aSheet->QueryInterface(kIStyleFrameConstructionIID, (void **)&mFrameConstructor);
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}
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}
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}
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void StyleSetImpl::InsertDocStyleSheetAfter(nsIStyleSheet* aSheet,
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nsIStyleSheet* aAfterSheet)
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{
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NS_PRECONDITION(nsnull != aSheet, "null arg");
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if (EnsureArray(&mDocSheets)) {
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PRInt32 index = mDocSheets->IndexOf(aAfterSheet);
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mDocSheets->InsertElementAt(aSheet, ++index);
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if (nsnull == mFrameConstructor) {
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aSheet->QueryInterface(kIStyleFrameConstructionIID, (void **)&mFrameConstructor);
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}
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}
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}
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void StyleSetImpl::InsertDocStyleSheetBefore(nsIStyleSheet* aSheet,
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nsIStyleSheet* aBeforeSheet)
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{
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NS_PRECONDITION(nsnull != aSheet, "null arg");
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if (EnsureArray(&mDocSheets)) {
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PRInt32 index = mDocSheets->IndexOf(aBeforeSheet);
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mDocSheets->InsertElementAt(aSheet, ((-1 < index) ? index : 0));
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if (nsnull == mFrameConstructor) {
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aSheet->QueryInterface(kIStyleFrameConstructionIID, (void **)&mFrameConstructor);
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}
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}
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}
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void StyleSetImpl::RemoveDocStyleSheet(nsIStyleSheet* aSheet)
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{
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NS_PRECONDITION(nsnull != aSheet, "null arg");
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if (nsnull != mDocSheets) {
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mDocSheets->RemoveElement(aSheet);
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}
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}
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PRInt32 StyleSetImpl::GetNumberOfDocStyleSheets()
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{
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if (nsnull != mDocSheets) {
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return mDocSheets->Count();
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}
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return 0;
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}
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nsIStyleSheet* StyleSetImpl::GetDocStyleSheetAt(PRInt32 aIndex)
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{
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nsIStyleSheet* sheet = nsnull;
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if (nsnull == mDocSheets) {
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sheet = (nsIStyleSheet*)mDocSheets->ElementAt(aIndex);
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}
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return sheet;
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}
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// ------ backstop sheets
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void StyleSetImpl::AppendBackstopStyleSheet(nsIStyleSheet* aSheet)
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{
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NS_PRECONDITION(nsnull != aSheet, "null arg");
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if (EnsureArray(&mBackstopSheets)) {
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mBackstopSheets->AppendElement(aSheet);
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}
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}
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void StyleSetImpl::InsertBackstopStyleSheetAfter(nsIStyleSheet* aSheet,
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nsIStyleSheet* aAfterSheet)
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{
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NS_PRECONDITION(nsnull != aSheet, "null arg");
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if (EnsureArray(&mBackstopSheets)) {
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PRInt32 index = mBackstopSheets->IndexOf(aAfterSheet);
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mBackstopSheets->InsertElementAt(aSheet, ++index);
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}
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}
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void StyleSetImpl::InsertBackstopStyleSheetBefore(nsIStyleSheet* aSheet,
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nsIStyleSheet* aBeforeSheet)
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{
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NS_PRECONDITION(nsnull != aSheet, "null arg");
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if (EnsureArray(&mBackstopSheets)) {
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PRInt32 index = mBackstopSheets->IndexOf(aBeforeSheet);
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mBackstopSheets->InsertElementAt(aSheet, ((-1 < index) ? index : 0));
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}
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}
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void StyleSetImpl::RemoveBackstopStyleSheet(nsIStyleSheet* aSheet)
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{
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NS_PRECONDITION(nsnull != aSheet, "null arg");
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if (nsnull != mBackstopSheets) {
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mBackstopSheets->RemoveElement(aSheet);
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}
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}
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PRInt32 StyleSetImpl::GetNumberOfBackstopStyleSheets()
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{
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if (nsnull != mBackstopSheets) {
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return mBackstopSheets->Count();
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}
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return 0;
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}
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nsIStyleSheet* StyleSetImpl::GetBackstopStyleSheetAt(PRInt32 aIndex)
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{
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nsIStyleSheet* sheet = nsnull;
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if (nsnull == mBackstopSheets) {
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sheet = (nsIStyleSheet*)mBackstopSheets->ElementAt(aIndex);
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}
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return sheet;
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}
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PRInt32 StyleSetImpl::RulesMatching(nsISupportsArray* aSheets,
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nsIPresContext* aPresContext,
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nsIContent* aContent,
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nsIStyleContext* aParentContext,
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nsISupportsArray* aResults)
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{
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PRInt32 ruleCount = 0;
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if (nsnull != aSheets) {
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PRInt32 index = aSheets->Count();
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while (0 < index--) {
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nsIStyleSheet* sheet = (nsIStyleSheet*)aSheets->ElementAt(index);
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ruleCount += sheet->RulesMatching(aPresContext, aContent, aParentContext,
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aResults);
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NS_RELEASE(sheet);
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}
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}
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return ruleCount;
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}
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nsIStyleContext* StyleSetImpl::GetContext(nsIPresContext* aPresContext,
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nsIStyleContext* aParentContext, nsIAtom* aPseudoTag,
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nsISupportsArray* aRules,
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PRBool aForceUnique, PRBool& aUsedRules)
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{
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nsIStyleContext* result = nsnull;
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aUsedRules = PR_FALSE;
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if ((PR_FALSE == aForceUnique) &&
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(nsnull != aParentContext) && (nsnull == aRules) &&
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(0 == aParentContext->GetStyleRuleCount())) {
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nsIAtom* parentTag = nsnull;
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aParentContext->GetPseudoType(parentTag);
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if (parentTag == aPseudoTag) {
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// this and parent are empty, and compatible
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result = aParentContext;
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NS_ADDREF(result); // add ref for the caller
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}
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NS_IF_RELEASE(parentTag);
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//fprintf(stdout, ".");
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}
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if (nsnull == result) {
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if ((PR_FALSE == aForceUnique) && (nsnull != aParentContext)) {
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aParentContext->FindChildWithRules(aPseudoTag, aRules, result);
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}
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if (nsnull == result) {
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if (NS_OK == NS_NewStyleContext(&result, aParentContext, aPseudoTag, aRules, aPresContext)) {
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if (PR_TRUE == aForceUnique) {
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result->ForceUnique();
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}
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aUsedRules = PRBool(nsnull != aRules);
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}
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//fprintf(stdout, "+");
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}
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else {
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//fprintf(stdout, "-");
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}
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}
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return result;
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}
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// XXX for now only works for strength 0 & 1
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static void SortRulesByStrength(nsISupportsArray* aRules, PRInt32& aBackstopRuleCount)
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{
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PRInt32 count = aRules->Count();
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if (1 < count) {
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PRInt32 index;
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PRInt32 strength;
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for (index = 0; index < count; ) {
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nsIStyleRule* rule = (nsIStyleRule*)aRules->ElementAt(index);
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rule->GetStrength(strength);
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if (0 < strength) {
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aRules->RemoveElementAt(index);
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aRules->AppendElement(rule);
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count--;
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if (index < aBackstopRuleCount) {
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aBackstopRuleCount--;
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}
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}
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else {
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index++;
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}
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NS_RELEASE(rule);
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}
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}
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}
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#ifdef NS_DEBUG
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#define NS_ASSERT_REFCOUNT(ptr,cnt,msg) { \
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nsrefcnt count = ptr->AddRef(); \
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ptr->Release(); \
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NS_ASSERTION(--count == cnt, msg); \
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}
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#else
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#define NS_ASSERT_REFCOUNT(ptr,cnt,msg) {}
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#endif
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nsIStyleContext* StyleSetImpl::ResolveStyleFor(nsIPresContext* aPresContext,
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nsIContent* aContent,
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nsIStyleContext* aParentContext,
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PRBool aForceUnique)
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{
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nsIStyleContext* result = nsnull;
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// want to check parent frame's context for cached child context first
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if ((nsnull != aParentContext) && (nsnull != aContent)) {
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//XXX Disabled this for the dom, as per peter's note
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//XXX result = aParentContext->FindChildWithContent(aContent);
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}
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if (nsnull == result) {
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// then do a brute force rule search
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nsISupportsArray* rules = mRecycler;
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mRecycler = nsnull;
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if (nsnull == rules) {
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NS_NewISupportsArray(&rules);
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}
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if (nsnull != rules) {
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PRInt32 ruleCount = RulesMatching(mBackstopSheets, aPresContext, aContent, aParentContext, rules);
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PRInt32 backstopRules = ruleCount;
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ruleCount += RulesMatching(mDocSheets, aPresContext, aContent, aParentContext, rules);
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ruleCount += RulesMatching(mOverrideSheets, aPresContext, aContent, aParentContext, rules);
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PRBool usedRules = PR_FALSE;
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if (0 < ruleCount) {
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SortRulesByStrength(rules, backstopRules);
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result = GetContext(aPresContext, aParentContext, nsnull, rules, aForceUnique, usedRules);
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if (usedRules) {
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NS_ASSERT_REFCOUNT(rules, 2, "rules array was used elsewhere");
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NS_RELEASE(rules);
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}
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else {
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NS_ASSERT_REFCOUNT(rules, 1, "rules array was used elsewhere");
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rules->Clear();
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mRecycler = rules;
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}
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}
|
|
else {
|
|
NS_ASSERT_REFCOUNT(rules, 1, "rules array was used elsewhere");
|
|
mRecycler = rules;
|
|
result = GetContext(aPresContext, aParentContext, nsnull, nsnull, aForceUnique, usedRules);
|
|
}
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
PRInt32 StyleSetImpl::RulesMatching(nsISupportsArray* aSheets,
|
|
nsIPresContext* aPresContext,
|
|
nsIContent* aParentContent,
|
|
nsIAtom* aPseudoTag,
|
|
nsIStyleContext* aParentContext,
|
|
nsISupportsArray* aResults)
|
|
{
|
|
PRInt32 ruleCount = 0;
|
|
|
|
if (nsnull != aSheets) {
|
|
PRInt32 index = aSheets->Count();
|
|
while (0 < index--) {
|
|
nsIStyleSheet* sheet = (nsIStyleSheet*)aSheets->ElementAt(index);
|
|
ruleCount += sheet->RulesMatching(aPresContext, aParentContent, aPseudoTag,
|
|
aParentContext, aResults);
|
|
NS_RELEASE(sheet);
|
|
}
|
|
}
|
|
return ruleCount;
|
|
}
|
|
|
|
nsIStyleContext* StyleSetImpl::ResolvePseudoStyleFor(nsIPresContext* aPresContext,
|
|
nsIContent* aParentContent,
|
|
nsIAtom* aPseudoTag,
|
|
nsIStyleContext* aParentContext,
|
|
PRBool aForceUnique)
|
|
{
|
|
nsIStyleContext* result = nsnull;
|
|
// want to check parent frame's context for cached child context first
|
|
|
|
// then do a brute force rule search
|
|
|
|
nsISupportsArray* rules = mRecycler;
|
|
mRecycler = nsnull;
|
|
if (nsnull == rules) {
|
|
NS_NewISupportsArray(&rules);
|
|
}
|
|
|
|
if (nsnull != rules) {
|
|
PRInt32 ruleCount = RulesMatching(mBackstopSheets, aPresContext,
|
|
aParentContent, aPseudoTag,
|
|
aParentContext, rules);
|
|
PRInt32 backstopRules = ruleCount;
|
|
ruleCount += RulesMatching(mDocSheets, aPresContext,
|
|
aParentContent, aPseudoTag,
|
|
aParentContext, rules);
|
|
ruleCount += RulesMatching(mOverrideSheets, aPresContext,
|
|
aParentContent, aPseudoTag,
|
|
aParentContext, rules);
|
|
|
|
PRBool usedRules = PR_FALSE;
|
|
if (0 < ruleCount) {
|
|
SortRulesByStrength(rules, backstopRules);
|
|
result = GetContext(aPresContext, aParentContext, aPseudoTag, rules, aForceUnique, usedRules);
|
|
if (usedRules) {
|
|
NS_ASSERT_REFCOUNT(rules, 2, "rules array was used elsewhere");
|
|
NS_RELEASE(rules);
|
|
}
|
|
else {
|
|
NS_ASSERT_REFCOUNT(rules, 1, "rules array was used elsewhere");
|
|
rules->Clear();
|
|
mRecycler = rules;
|
|
}
|
|
}
|
|
else {
|
|
NS_ASSERT_REFCOUNT(rules, 1, "rules array was used elsewhere");
|
|
mRecycler = rules;
|
|
result = GetContext(aPresContext, aParentContext, aPseudoTag, nsnull, aForceUnique, usedRules);
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
nsIStyleContext* StyleSetImpl::ProbePseudoStyleFor(nsIPresContext* aPresContext,
|
|
nsIContent* aParentContent,
|
|
nsIAtom* aPseudoTag,
|
|
nsIStyleContext* aParentContext,
|
|
PRBool aForceUnique)
|
|
{
|
|
nsIStyleContext* result = nsnull;
|
|
// want to check parent frame's context for cached child context first
|
|
|
|
// then do a brute force rule search
|
|
|
|
nsISupportsArray* rules = mRecycler;
|
|
mRecycler = nsnull;
|
|
if (nsnull == rules) {
|
|
NS_NewISupportsArray(&rules);
|
|
}
|
|
|
|
if (nsnull != rules) {
|
|
PRInt32 ruleCount = RulesMatching(mBackstopSheets, aPresContext,
|
|
aParentContent, aPseudoTag,
|
|
aParentContext, rules);
|
|
PRInt32 backstopRules = ruleCount;
|
|
ruleCount += RulesMatching(mDocSheets, aPresContext,
|
|
aParentContent, aPseudoTag,
|
|
aParentContext, rules);
|
|
ruleCount += RulesMatching(mOverrideSheets, aPresContext,
|
|
aParentContent, aPseudoTag,
|
|
aParentContext, rules);
|
|
|
|
PRBool usedRules = PR_FALSE;
|
|
if (0 < ruleCount) {
|
|
SortRulesByStrength(rules, backstopRules);
|
|
result = GetContext(aPresContext, aParentContext, aPseudoTag, rules, aForceUnique, usedRules);
|
|
if (usedRules) {
|
|
NS_ASSERT_REFCOUNT(rules, 2, "rules array was used elsewhere");
|
|
NS_RELEASE(rules);
|
|
}
|
|
else {
|
|
NS_ASSERT_REFCOUNT(rules, 1, "rules array was used elsewhere");
|
|
rules->Clear();
|
|
mRecycler = rules;
|
|
}
|
|
}
|
|
else {
|
|
NS_ASSERT_REFCOUNT(rules, 1, "rules array was used elsewhere");
|
|
mRecycler = rules;
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
NS_IMETHODIMP StyleSetImpl::ConstructFrame(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIFrame* aParentFrame,
|
|
nsIFrame*& aFrameSubTree)
|
|
{
|
|
return mFrameConstructor->ConstructFrame(aPresContext, aContent,
|
|
aParentFrame, aFrameSubTree);
|
|
}
|
|
|
|
NS_IMETHODIMP StyleSetImpl::ContentAppended(nsIPresContext* aPresContext,
|
|
nsIContent* aContainer,
|
|
PRInt32 aNewIndexInContainer)
|
|
{
|
|
return mFrameConstructor->ContentAppended(aPresContext,
|
|
aContainer, aNewIndexInContainer);
|
|
}
|
|
|
|
NS_IMETHODIMP StyleSetImpl::ContentInserted(nsIPresContext* aPresContext,
|
|
nsIContent* aContainer,
|
|
nsIContent* aChild,
|
|
PRInt32 aIndexInContainer)
|
|
{
|
|
return mFrameConstructor->ContentInserted(aPresContext, aContainer,
|
|
aChild, aIndexInContainer);
|
|
}
|
|
|
|
NS_IMETHODIMP StyleSetImpl::ContentReplaced(nsIPresContext* aPresContext,
|
|
nsIContent* aContainer,
|
|
nsIContent* aOldChild,
|
|
nsIContent* aNewChild,
|
|
PRInt32 aIndexInContainer)
|
|
{
|
|
return mFrameConstructor->ContentReplaced(aPresContext, aContainer,
|
|
aOldChild, aNewChild, aIndexInContainer);
|
|
}
|
|
|
|
NS_IMETHODIMP StyleSetImpl::ContentRemoved(nsIPresContext* aPresContext,
|
|
nsIContent* aContainer,
|
|
nsIContent* aChild,
|
|
PRInt32 aIndexInContainer)
|
|
{
|
|
return mFrameConstructor->ContentRemoved(aPresContext, aContainer,
|
|
aChild, aIndexInContainer);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
StyleSetImpl::ContentChanged(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsISupports* aSubContent)
|
|
{
|
|
return mFrameConstructor->ContentChanged(aPresContext,
|
|
aContent, aSubContent);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
StyleSetImpl::AttributeChanged(nsIPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIAtom* aAttribute,
|
|
PRInt32 aHint)
|
|
{
|
|
return mFrameConstructor->AttributeChanged(aPresContext, aContent,
|
|
aAttribute, aHint);
|
|
}
|
|
|
|
// xxx style rules enumeration
|
|
|
|
void StyleSetImpl::List(FILE* out, PRInt32 aIndent, nsISupportsArray* aSheets)
|
|
{
|
|
PRInt32 count = ((nsnull != aSheets) ? aSheets->Count() : 0);
|
|
|
|
for (PRInt32 index = 0; index < count; index++) {
|
|
nsIStyleSheet* sheet = (nsIStyleSheet*)aSheets->ElementAt(index);
|
|
sheet->List(out, aIndent);
|
|
fputs("\n", out);
|
|
NS_RELEASE(sheet);
|
|
}
|
|
}
|
|
|
|
void StyleSetImpl::List(FILE* out, PRInt32 aIndent)
|
|
{
|
|
List(out, aIndent, mOverrideSheets);
|
|
List(out, aIndent, mDocSheets);
|
|
List(out, aIndent, mBackstopSheets);
|
|
}
|
|
|
|
void StyleSetImpl::ListContexts(nsIStyleContext* aRootContext, FILE* out, PRInt32 aIndent)
|
|
{
|
|
aRootContext->List(out, aIndent);
|
|
}
|
|
|
|
|
|
NS_LAYOUT nsresult
|
|
NS_NewStyleSet(nsIStyleSet** aInstancePtrResult)
|
|
{
|
|
if (aInstancePtrResult == nsnull) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
|
|
StyleSetImpl *it = new StyleSetImpl();
|
|
|
|
if (nsnull == it) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
return it->QueryInterface(kIStyleSetIID, (void **) aInstancePtrResult);
|
|
}
|