зеркало из https://github.com/mozilla/pjs.git
1446 строки
40 KiB
C++
1446 строки
40 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
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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* Pierre Phaneuf <pp@ludusdesign.com>
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*
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* This Original Code has been modified by IBM Corporation. Modifications made by IBM
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* described herein are Copyright (c) International Business Machines Corporation, 2000.
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* Modifications to Mozilla code or documentation identified per MPL Section 3.3
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*
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* Date Modified by Description of modification
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* 04/20/2000 IBM Corp. OS/2 VisualAge build.
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*/
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#include "nsINameSpaceManager.h"
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#include "nsIHTMLStyleSheet.h"
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#include "nsIArena.h"
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#include "nsCRT.h"
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#include "nsIAtom.h"
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#include "nsIURL.h"
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#include "nsIServiceManager.h"
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#include "nsISupportsArray.h"
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#include "nsHashtable.h"
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#include "nsIHTMLContent.h"
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#include "nsIHTMLAttributes.h"
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#include "nsILink.h"
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#include "nsStyleUtil.h"
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#include "nsIStyleRuleProcessor.h"
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#include "nsIStyleRule.h"
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#include "nsIFrame.h"
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#include "nsIStyleContext.h"
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#include "nsHTMLAtoms.h"
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#include "nsIPresContext.h"
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#include "nsIEventStateManager.h"
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#include "nsIDocument.h"
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#include "nsHTMLIIDs.h"
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#include "nsICSSFrameConstructor.h"
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#include "nsIStyleFrameConstruction.h"
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#include "nsHTMLParts.h"
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#include "nsIPresShell.h"
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#include "nsStyleConsts.h"
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#include "nsINameSpaceManager.h"
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#include "nsLayoutAtoms.h"
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#include "nsContentCID.h"
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#include "nsLayoutCID.h"
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#include "nsIRuleWalker.h"
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#include "nsIStyleSet.h"
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#include "nsISizeOfHandler.h"
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static NS_DEFINE_IID(kIStyleFrameConstructionIID, NS_ISTYLE_FRAME_CONSTRUCTION_IID);
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static NS_DEFINE_CID(kHTMLAttributesCID, NS_HTMLATTRIBUTES_CID);
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static NS_DEFINE_CID(kCSSFrameConstructorCID, NS_CSSFRAMECONSTRUCTOR_CID);
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class HTMLColorRule : public nsIStyleRule {
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public:
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HTMLColorRule(nsIHTMLStyleSheet* aSheet);
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virtual ~HTMLColorRule();
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NS_DECL_ISUPPORTS
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NS_IMETHOD Equals(const nsIStyleRule* aRule, PRBool& aValue) const;
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NS_IMETHOD HashValue(PRUint32& aValue) const;
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NS_IMETHOD GetStyleSheet(nsIStyleSheet*& aSheet) const;
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// Strength is an out-of-band weighting, always 0 here
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NS_IMETHOD GetStrength(PRInt32& aStrength) const;
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// The new mapping function.
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NS_IMETHOD MapRuleInfoInto(nsRuleData* aRuleData);
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NS_IMETHOD List(FILE* out = stdout, PRInt32 aIndent = 0) const;
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virtual void SizeOf(nsISizeOfHandler *aSizeOfHandler, PRUint32 &aSize);
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nscolor mColor;
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nsIHTMLStyleSheet* mSheet;
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};
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class HTMLDocumentColorRule : public HTMLColorRule {
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public:
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HTMLDocumentColorRule(nsIHTMLStyleSheet* aSheet);
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virtual ~HTMLDocumentColorRule();
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NS_IMETHOD MapRuleInfoInto(nsRuleData* aRuleData);
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virtual void SizeOf(nsISizeOfHandler *aSizeofHandler, PRUint32 &aSize);
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void Reset() {
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mForegroundSet = PR_FALSE;
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mBackgroundSet = PR_FALSE;
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}
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nscolor mBackgroundColor;
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PRBool mForegroundSet;
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PRBool mBackgroundSet;
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};
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HTMLColorRule::HTMLColorRule(nsIHTMLStyleSheet* aSheet)
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: mSheet(aSheet)
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{
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NS_INIT_REFCNT();
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}
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HTMLColorRule::~HTMLColorRule()
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{
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}
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NS_IMPL_ISUPPORTS1(HTMLColorRule, nsIStyleRule)
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NS_IMETHODIMP
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HTMLColorRule::Equals(const nsIStyleRule* aRule, PRBool& aResult) const
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{
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aResult = PRBool(this == aRule);
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return NS_OK;
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}
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NS_IMETHODIMP
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HTMLColorRule::HashValue(PRUint32& aValue) const
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{
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aValue = (PRUint32)(mColor);
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return NS_OK;
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}
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NS_IMETHODIMP
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HTMLColorRule::GetStyleSheet(nsIStyleSheet*& aSheet) const
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{
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NS_IF_ADDREF(mSheet);
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aSheet = mSheet;
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return NS_OK;
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}
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// Strength is an out-of-band weighting, always 0 here
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NS_IMETHODIMP
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HTMLColorRule::GetStrength(PRInt32& aStrength) const
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{
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aStrength = 0;
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return NS_OK;
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}
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NS_IMETHODIMP
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HTMLColorRule::MapRuleInfoInto(nsRuleData* aRuleData)
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{
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if (aRuleData->mSID == eStyleStruct_Color && aRuleData->mColorData) {
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if (aRuleData->mColorData->mColor.GetUnit() == eCSSUnit_Null)
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aRuleData->mColorData->mColor = nsCSSValue(mColor);
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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HTMLColorRule::List(FILE* out, PRInt32 aIndent) const
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{
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return NS_OK;
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}
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/******************************************************************************
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* SizeOf method:
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*
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* Self (reported as HTMLColorRule's size):
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* 1) sizeof(*this) +
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*
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* Contained / Aggregated data (not reported as HTMLColorRule's size):
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* 1) delegate to the mSheet
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*
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* Children / siblings / parents:
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* none
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*
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******************************************************************************/
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void HTMLColorRule::SizeOf(nsISizeOfHandler *aSizeOfHandler, PRUint32 &aSize)
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{
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NS_ASSERTION(aSizeOfHandler != nsnull, "SizeOf handler cannot be null");
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// first get the unique items collection
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UNIQUE_STYLE_ITEMS(uniqueItems);
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if(! uniqueItems->AddItem((void*)this) ){
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// object has already been accounted for
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return;
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}
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// get or create a tag for this instance
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nsCOMPtr<nsIAtom> tag;
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tag = getter_AddRefs(NS_NewAtom("HTMLColorRule"));
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// get the size of an empty instance and add to the sizeof handler
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aSize = sizeof(*this);
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aSizeOfHandler->AddSize(tag,aSize);
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if(mSheet){
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PRUint32 localSize=0;
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mSheet->SizeOf(aSizeOfHandler, localSize);
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}
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}
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HTMLDocumentColorRule::HTMLDocumentColorRule(nsIHTMLStyleSheet* aSheet)
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: HTMLColorRule(aSheet)
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{
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Reset();
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}
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HTMLDocumentColorRule::~HTMLDocumentColorRule()
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{
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}
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NS_IMETHODIMP
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HTMLDocumentColorRule::MapRuleInfoInto(nsRuleData* aRuleData)
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{
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if (mForegroundSet && aRuleData->mSID == eStyleStruct_Color && aRuleData->mColorData) {
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nsCSSValue val; val.SetColorValue(mColor);
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aRuleData->mColorData->mColor = val;
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}
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else if (mBackgroundSet && aRuleData->mSID == eStyleStruct_Background && aRuleData->mColorData) {
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nsCSSValue val; val.SetColorValue(mBackgroundColor);
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aRuleData->mColorData->mBackColor = val;
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}
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return NS_OK;
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}
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/******************************************************************************
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* SizeOf method:
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*
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* Self (reported as HTMLDocumentColorRule's size):
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* 1) sizeof(*this)
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*
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* Contained / Aggregated data (not reported as HTMLDocumentColorRule's size):
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* 1) Delegate to the mSheet
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*
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* Children / siblings / parents:
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* none
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*
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******************************************************************************/
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void HTMLDocumentColorRule::SizeOf(nsISizeOfHandler *aSizeOfHandler, PRUint32 &aSize)
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{
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NS_ASSERTION(aSizeOfHandler != nsnull, "SizeOf handler cannot be null");
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// first get the unique items collection
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UNIQUE_STYLE_ITEMS(uniqueItems);
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if(! uniqueItems->AddItem((void*)this) ){
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// object has already been accounted for
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return;
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}
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// get or create a tag for this instance
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nsCOMPtr<nsIAtom> tag;
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tag = getter_AddRefs(NS_NewAtom("HTMLDocumentColorRule"));
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// get the size of an empty instance and add to the sizeof handler
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aSize = sizeof(*this);
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aSizeOfHandler->AddSize(tag,aSize);
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if(mSheet){
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PRUint32 localSize;
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mSheet->SizeOf(aSizeOfHandler, localSize);
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}
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}
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class GenericTableRule: public nsIStyleRule {
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public:
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GenericTableRule(nsIHTMLStyleSheet* aSheet);
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virtual ~GenericTableRule();
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NS_DECL_ISUPPORTS
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NS_IMETHOD Equals(const nsIStyleRule* aRule, PRBool& aResult) const;
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NS_IMETHOD HashValue(PRUint32& aValue) const;
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NS_IMETHOD GetStyleSheet(nsIStyleSheet*& aSheet) const;
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// Strength is an out-of-band weighting, always 0 here
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NS_IMETHOD GetStrength(PRInt32& aStrength) const;
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// The new mapping function.
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NS_IMETHOD MapRuleInfoInto(nsRuleData* aRuleData);
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NS_IMETHOD List(FILE* out = stdout, PRInt32 aIndent = 0) const;
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virtual void SizeOf(nsISizeOfHandler *aSizeofHandler, PRUint32 &aSize);
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void Reset()
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{
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}
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nsIHTMLStyleSheet* mSheet; // not ref-counted, cleared by content
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};
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GenericTableRule::GenericTableRule(nsIHTMLStyleSheet* aSheet)
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{
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NS_INIT_REFCNT();
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mSheet = aSheet;
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}
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GenericTableRule::~GenericTableRule()
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{
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}
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NS_IMPL_ISUPPORTS1(GenericTableRule, nsIStyleRule)
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NS_IMETHODIMP
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GenericTableRule::Equals(const nsIStyleRule* aRule, PRBool& aResult) const
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{
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aResult = PRBool(this == aRule);
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return NS_OK;
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}
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NS_IMETHODIMP
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GenericTableRule::HashValue(PRUint32& aValue) const
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{
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aValue = 0;
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return NS_OK;
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}
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NS_IMETHODIMP
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GenericTableRule::GetStyleSheet(nsIStyleSheet*& aSheet) const
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{
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aSheet = mSheet;
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return NS_OK;
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}
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// Strength is an out-of-band weighting, useful for mapping CSS ! important
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// always 0 here
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NS_IMETHODIMP
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GenericTableRule::GetStrength(PRInt32& aStrength) const
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{
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aStrength = 0;
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return NS_OK;
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}
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NS_IMETHODIMP
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GenericTableRule::MapRuleInfoInto(nsRuleData* aRuleData)
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{
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// Nothing to do.
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return NS_OK;
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}
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NS_IMETHODIMP
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GenericTableRule::List(FILE* out, PRInt32 aIndent) const
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{
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return NS_OK;
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}
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/******************************************************************************
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* SizeOf method:
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*
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* Self (reported as GenericTableRule's size):
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* 1) sizeof(*this) +
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*
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* Contained / Aggregated data (not reported as GenericTableRule's size):
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* 1) Delegate to the mSheet if it exists
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*
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* Children / siblings / parents:
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* none
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*
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******************************************************************************/
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void GenericTableRule::SizeOf(nsISizeOfHandler *aSizeOfHandler, PRUint32 &aSize)
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{
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NS_ASSERTION(aSizeOfHandler != nsnull, "SizeOf handler cannot be null");
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// first get the unique items collection
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UNIQUE_STYLE_ITEMS(uniqueItems);
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if(! uniqueItems->AddItem((void*)this) ){
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// object has already been accounted for
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return;
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}
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// get or create a tag for this instance
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nsCOMPtr<nsIAtom> tag;
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tag = getter_AddRefs(NS_NewAtom("GenericTableRule"));
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// get the size of an empty instance and add to the sizeof handler
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aSize = sizeof(*this);
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aSizeOfHandler->AddSize(tag,aSize);
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if(mSheet){
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PRUint32 localSize;
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mSheet->SizeOf(aSizeOfHandler, localSize);
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}
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}
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// -----------------------------------------------------------
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// this rule handles <th> inheritance
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// -----------------------------------------------------------
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class TableTHRule: public GenericTableRule {
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public:
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TableTHRule(nsIHTMLStyleSheet* aSheet);
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virtual ~TableTHRule();
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void Reset()
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{
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GenericTableRule::Reset();
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}
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NS_IMETHOD MapRuleInfoInto(nsRuleData* aRuleData);
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};
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TableTHRule::TableTHRule(nsIHTMLStyleSheet* aSheet)
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: GenericTableRule(aSheet)
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{
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}
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TableTHRule::~TableTHRule()
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{
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}
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static void PostResolveCallback(nsStyleStruct* aStyleStruct, nsRuleData* aRuleData)
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{
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nsStyleText* text = (nsStyleText*)aStyleStruct;
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if (text->mTextAlign == NS_STYLE_TEXT_ALIGN_DEFAULT) {
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nsCOMPtr<nsIStyleContext> parentContext = getter_AddRefs(aRuleData->mStyleContext->GetParent());
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if (parentContext) {
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const nsStyleText* parentStyleText =
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(const nsStyleText*)parentContext->GetStyleData(eStyleStruct_Text);
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PRUint8 parentAlign = parentStyleText->mTextAlign;
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text->mTextAlign = (NS_STYLE_TEXT_ALIGN_DEFAULT == parentAlign)
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? NS_STYLE_TEXT_ALIGN_CENTER : parentAlign;
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}
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}
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}
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NS_IMETHODIMP
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TableTHRule::MapRuleInfoInto(nsRuleData* aRuleData)
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{
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if (aRuleData && aRuleData->mSID == eStyleStruct_Text) {
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aRuleData->mCanStoreInRuleTree = PR_FALSE;
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aRuleData->mPostResolveCallback = &PostResolveCallback;
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}
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return NS_OK;
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}
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// -----------------------------------------------------------
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class AttributeKey: public nsHashKey
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{
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public:
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AttributeKey(nsIHTMLMappedAttributes* aAttributes);
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virtual ~AttributeKey(void);
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PRBool Equals(const nsHashKey* aOther) const;
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PRUint32 HashCode(void) const;
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nsHashKey* Clone(void) const;
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private:
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AttributeKey(void);
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AttributeKey(const AttributeKey& aCopy);
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AttributeKey& operator=(const AttributeKey& aCopy);
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public:
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nsIHTMLMappedAttributes* mAttributes;
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union {
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struct {
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PRUint32 mHashSet: 1;
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PRUint32 mHashCode: 31;
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} mBits;
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PRUint32 mInitializer;
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} mHash;
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};
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MOZ_DECL_CTOR_COUNTER(AttributeKey)
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AttributeKey::AttributeKey(nsIHTMLMappedAttributes* aAttributes)
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: mAttributes(aAttributes)
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{
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MOZ_COUNT_CTOR(AttributeKey);
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NS_ADDREF(mAttributes);
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mHash.mInitializer = 0;
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}
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AttributeKey::~AttributeKey(void)
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{
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MOZ_COUNT_DTOR(AttributeKey);
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NS_RELEASE(mAttributes);
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}
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PRBool AttributeKey::Equals(const nsHashKey* aOther) const
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{
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const AttributeKey* other = (const AttributeKey*)aOther;
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PRBool equals;
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mAttributes->Equals(other->mAttributes, equals);
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return equals;
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}
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PRUint32 AttributeKey::HashCode(void) const
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{
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if (0 == mHash.mBits.mHashSet) {
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AttributeKey* self = (AttributeKey*)this; // break const
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PRUint32 hash;
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mAttributes->HashValue(hash);
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self->mHash.mBits.mHashCode = (0x7FFFFFFF & hash);
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self->mHash.mBits.mHashSet = 1;
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}
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return mHash.mBits.mHashCode;
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}
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nsHashKey* AttributeKey::Clone(void) const
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{
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AttributeKey* clown = new AttributeKey(mAttributes);
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if (nsnull != clown) {
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clown->mHash.mInitializer = mHash.mInitializer;
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}
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return clown;
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}
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// -----------------------------------------------------------
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class HTMLStyleSheetImpl : public nsIHTMLStyleSheet,
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public nsIStyleRuleProcessor {
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public:
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void* operator new(size_t size);
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void* operator new(size_t size, nsIArena* aArena);
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void operator delete(void* ptr);
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HTMLStyleSheetImpl(void);
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nsresult Init();
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NS_IMETHOD QueryInterface(const nsIID& aIID, void** aInstancePtr);
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NS_IMETHOD_(nsrefcnt) AddRef();
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NS_IMETHOD_(nsrefcnt) Release();
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// nsIStyleSheet api
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NS_IMETHOD GetURL(nsIURI*& aURL) const;
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NS_IMETHOD GetTitle(nsString& aTitle) const;
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NS_IMETHOD GetType(nsString& aType) const;
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NS_IMETHOD GetMediumCount(PRInt32& aCount) const;
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NS_IMETHOD GetMediumAt(PRInt32 aIndex, nsIAtom*& aMedium) const;
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NS_IMETHOD_(PRBool) UseForMedium(nsIAtom* aMedium) const;
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|
|
NS_IMETHOD GetEnabled(PRBool& aEnabled) const;
|
|
NS_IMETHOD SetEnabled(PRBool aEnabled);
|
|
|
|
// style sheet owner info
|
|
NS_IMETHOD GetParentSheet(nsIStyleSheet*& aParent) const; // will be null
|
|
NS_IMETHOD GetOwningDocument(nsIDocument*& aDocument) const;
|
|
|
|
NS_IMETHOD SetOwningDocument(nsIDocument* aDocumemt);
|
|
|
|
NS_IMETHOD GetStyleRuleProcessor(nsIStyleRuleProcessor*& aProcessor,
|
|
nsIStyleRuleProcessor* aPrevProcessor);
|
|
|
|
// nsIStyleRuleProcessor API
|
|
NS_IMETHOD RulesMatching(nsIPresContext* aPresContext,
|
|
nsIAtom* aMedium,
|
|
nsIContent* aContent,
|
|
nsIStyleContext* aParentContext,
|
|
nsIRuleWalker* aRuleWalker);
|
|
|
|
NS_IMETHOD RulesMatching(nsIPresContext* aPresContext,
|
|
nsIAtom* aMedium,
|
|
nsIContent* aParentContent,
|
|
nsIAtom* aPseudoTag,
|
|
nsIStyleContext* aParentContext,
|
|
nsICSSPseudoComparator* aComparator,
|
|
nsIRuleWalker* aRuleWalker);
|
|
|
|
NS_IMETHOD HasStateDependentStyle(nsIPresContext* aPresContext,
|
|
nsIAtom* aMedium,
|
|
nsIContent* aContent);
|
|
|
|
// nsIHTMLStyleSheet api
|
|
NS_IMETHOD Init(nsIURI* aURL, nsIDocument* aDocument);
|
|
NS_IMETHOD Reset(nsIURI* aURL);
|
|
NS_IMETHOD GetLinkColor(nscolor& aColor);
|
|
NS_IMETHOD GetActiveLinkColor(nscolor& aColor);
|
|
NS_IMETHOD GetVisitedLinkColor(nscolor& aColor);
|
|
NS_IMETHOD GetDocumentForegroundColor(nscolor& aColor);
|
|
NS_IMETHOD GetDocumentBackgroundColor(nscolor& aColor);
|
|
NS_IMETHOD SetLinkColor(nscolor aColor);
|
|
NS_IMETHOD SetActiveLinkColor(nscolor aColor);
|
|
NS_IMETHOD SetVisitedLinkColor(nscolor aColor);
|
|
NS_IMETHOD SetDocumentForegroundColor(nscolor aColor);
|
|
NS_IMETHOD SetDocumentBackgroundColor(nscolor aColor);
|
|
|
|
// Attribute management methods, aAttributes is an in/out param
|
|
NS_IMETHOD SetAttributesFor(nsIHTMLContent* aContent,
|
|
nsIHTMLAttributes*& aAttributes);
|
|
NS_IMETHOD SetAttributeFor(nsIAtom* aAttribute,
|
|
const nsAReadableString& aValue,
|
|
PRBool aMappedToStyle,
|
|
nsIHTMLContent* aContent,
|
|
nsIHTMLAttributes*& aAttributes);
|
|
NS_IMETHOD SetAttributeFor(nsIAtom* aAttribute, const nsHTMLValue& aValue,
|
|
PRBool aMappedToStyle,
|
|
nsIHTMLContent* aContent,
|
|
nsIHTMLAttributes*& aAttributes);
|
|
NS_IMETHOD UnsetAttributeFor(nsIAtom* aAttribute, nsIHTMLContent* aContent,
|
|
nsIHTMLAttributes*& aAttributes);
|
|
|
|
// Mapped Attribute management methods
|
|
NS_IMETHOD UniqueMappedAttributes(nsIHTMLMappedAttributes* aMapped,
|
|
nsIHTMLMappedAttributes*& aUniqueMapped);
|
|
NS_IMETHOD DropMappedAttributes(nsIHTMLMappedAttributes* aMapped);
|
|
|
|
virtual void List(FILE* out = stdout, PRInt32 aIndent = 0) const;
|
|
|
|
virtual void SizeOf(nsISizeOfHandler *aSizeofHandler, PRUint32 &aSize);
|
|
|
|
// If changing the given attribute cannot affect style context, aAffects
|
|
// will be PR_FALSE on return.
|
|
NS_IMETHOD AttributeAffectsStyle(nsIAtom *aAttribute, nsIContent *aContent,
|
|
PRBool &aAffects);
|
|
private:
|
|
// These are not supported and are not implemented!
|
|
HTMLStyleSheetImpl(const HTMLStyleSheetImpl& aCopy);
|
|
HTMLStyleSheetImpl& operator=(const HTMLStyleSheetImpl& aCopy);
|
|
|
|
protected:
|
|
virtual ~HTMLStyleSheetImpl();
|
|
|
|
protected:
|
|
PRUint32 mInHeap : 1;
|
|
PRUint32 mRefCnt : 31;
|
|
NS_DECL_OWNINGTHREAD // for thread-safety checking
|
|
|
|
nsIURI* mURL;
|
|
nsIDocument* mDocument;
|
|
HTMLColorRule* mLinkRule;
|
|
HTMLColorRule* mVisitedRule;
|
|
HTMLColorRule* mActiveRule;
|
|
HTMLDocumentColorRule* mDocumentColorRule;
|
|
TableTHRule* mTableTHRule;
|
|
// NOTE: if adding more rules, be sure to update
|
|
// the SizeOf method to include them
|
|
|
|
nsHashtable mMappedAttrTable;
|
|
};
|
|
|
|
|
|
void* HTMLStyleSheetImpl::operator new(size_t size)
|
|
{
|
|
HTMLStyleSheetImpl* rv = (HTMLStyleSheetImpl*) ::operator new(size);
|
|
#ifdef NS_DEBUG
|
|
if (nsnull != rv) {
|
|
nsCRT::memset(rv, 0xEE, size);
|
|
}
|
|
#endif
|
|
rv->mInHeap = 1;
|
|
return (void*) rv;
|
|
}
|
|
|
|
void* HTMLStyleSheetImpl::operator new(size_t size, nsIArena* aArena)
|
|
{
|
|
HTMLStyleSheetImpl* rv = (HTMLStyleSheetImpl*) aArena->Alloc(PRInt32(size));
|
|
#ifdef NS_DEBUG
|
|
if (nsnull != rv) {
|
|
nsCRT::memset(rv, 0xEE, size);
|
|
}
|
|
#endif
|
|
rv->mInHeap = 0;
|
|
return (void*) rv;
|
|
}
|
|
|
|
void HTMLStyleSheetImpl::operator delete(void* ptr)
|
|
{
|
|
HTMLStyleSheetImpl* sheet = (HTMLStyleSheetImpl*) ptr;
|
|
if (nsnull != sheet) {
|
|
if (sheet->mInHeap) {
|
|
::operator delete(ptr);
|
|
}
|
|
}
|
|
}
|
|
|
|
HTMLStyleSheetImpl::HTMLStyleSheetImpl(void)
|
|
: nsIHTMLStyleSheet(),
|
|
mURL(nsnull),
|
|
mDocument(nsnull),
|
|
mLinkRule(nsnull),
|
|
mVisitedRule(nsnull),
|
|
mActiveRule(nsnull),
|
|
mDocumentColorRule(nsnull)
|
|
{
|
|
NS_INIT_REFCNT();
|
|
}
|
|
|
|
nsresult
|
|
HTMLStyleSheetImpl::Init()
|
|
{
|
|
mTableTHRule = new TableTHRule(this);
|
|
if (!mTableTHRule)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
NS_ADDREF(mTableTHRule);
|
|
|
|
mDocumentColorRule = new HTMLDocumentColorRule(this);
|
|
if (!mDocumentColorRule)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
NS_ADDREF(mDocumentColorRule);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
PRBool PR_CALLBACK MappedDropSheet(nsHashKey *aKey, void *aData, void* closure)
|
|
{
|
|
nsIHTMLMappedAttributes* mapped = (nsIHTMLMappedAttributes*)aData;
|
|
mapped->DropStyleSheetReference();
|
|
return PR_TRUE;
|
|
}
|
|
|
|
HTMLStyleSheetImpl::~HTMLStyleSheetImpl()
|
|
{
|
|
NS_IF_RELEASE(mURL);
|
|
if (nsnull != mLinkRule) {
|
|
mLinkRule->mSheet = nsnull;
|
|
NS_RELEASE(mLinkRule);
|
|
}
|
|
if (nsnull != mVisitedRule) {
|
|
mVisitedRule->mSheet = nsnull;
|
|
NS_RELEASE(mVisitedRule);
|
|
}
|
|
if (nsnull != mActiveRule) {
|
|
mActiveRule->mSheet = nsnull;
|
|
NS_RELEASE(mActiveRule);
|
|
}
|
|
if (nsnull != mDocumentColorRule) {
|
|
mDocumentColorRule->mSheet = nsnull;
|
|
NS_RELEASE(mDocumentColorRule);
|
|
}
|
|
if (nsnull != mTableTHRule) {
|
|
mTableTHRule->mSheet = nsnull;
|
|
NS_RELEASE(mTableTHRule);
|
|
}
|
|
mMappedAttrTable.Enumerate(MappedDropSheet);
|
|
}
|
|
|
|
NS_IMPL_ADDREF(HTMLStyleSheetImpl)
|
|
NS_IMPL_RELEASE(HTMLStyleSheetImpl)
|
|
|
|
nsresult HTMLStyleSheetImpl::QueryInterface(const nsIID& aIID,
|
|
void** aInstancePtrResult)
|
|
{
|
|
NS_PRECONDITION(nsnull != aInstancePtrResult, "null pointer");
|
|
if (nsnull == aInstancePtrResult) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
|
|
if (aIID.Equals(NS_GET_IID(nsIHTMLStyleSheet))) {
|
|
*aInstancePtrResult = (void*) ((nsIHTMLStyleSheet*)this);
|
|
NS_ADDREF_THIS();
|
|
return NS_OK;
|
|
}
|
|
if (aIID.Equals(NS_GET_IID(nsIStyleSheet))) {
|
|
*aInstancePtrResult = (void*) ((nsIStyleSheet*)this);
|
|
NS_ADDREF_THIS();
|
|
return NS_OK;
|
|
}
|
|
if (aIID.Equals(NS_GET_IID(nsIStyleRuleProcessor))) {
|
|
*aInstancePtrResult = (void*) ((nsIStyleRuleProcessor*)this);
|
|
NS_ADDREF_THIS();
|
|
return NS_OK;
|
|
}
|
|
if (aIID.Equals(kIStyleFrameConstructionIID)) {
|
|
// XXX this breaks XPCOM rules since it isn't a proper delegate
|
|
// This is a temporary method of connecting the constructor for now
|
|
nsresult result;
|
|
nsCOMPtr<nsICSSFrameConstructor> constructor(do_CreateInstance(kCSSFrameConstructorCID,&result));
|
|
if (NS_SUCCEEDED(result)) {
|
|
result = constructor->Init(mDocument);
|
|
if (NS_SUCCEEDED(result)) {
|
|
result = constructor->QueryInterface(aIID, aInstancePtrResult);
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
if (aIID.Equals(kISupportsIID)) {
|
|
*aInstancePtrResult = (void*) this;
|
|
NS_ADDREF_THIS();
|
|
return NS_OK;
|
|
}
|
|
return NS_NOINTERFACE;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLStyleSheetImpl::GetStyleRuleProcessor(nsIStyleRuleProcessor*& aProcessor,
|
|
nsIStyleRuleProcessor* /*aPrevProcessor*/)
|
|
{
|
|
aProcessor = this;
|
|
NS_ADDREF(aProcessor);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLStyleSheetImpl::RulesMatching(nsIPresContext* aPresContext,
|
|
nsIAtom* aMedium,
|
|
nsIContent* aContent,
|
|
nsIStyleContext* aParentContext,
|
|
nsIRuleWalker* aRuleWalker)
|
|
{
|
|
NS_PRECONDITION(nsnull != aPresContext, "null arg");
|
|
NS_PRECONDITION(nsnull != aContent, "null arg");
|
|
NS_PRECONDITION(nsnull != aRuleWalker, "null arg");
|
|
|
|
nsIStyledContent* styledContent;
|
|
if (NS_SUCCEEDED(aContent->QueryInterface(NS_GET_IID(nsIStyledContent), (void**)&styledContent))) {
|
|
PRInt32 nameSpace;
|
|
styledContent->GetNameSpaceID(nameSpace);
|
|
if (kNameSpaceID_HTML == nameSpace) {
|
|
nsIAtom* tag;
|
|
styledContent->GetTag(tag);
|
|
// if we have anchor colors, check if this is an anchor with an href
|
|
if (tag == nsHTMLAtoms::a) {
|
|
if (mLinkRule || mVisitedRule || mActiveRule) {
|
|
nsLinkState linkState;
|
|
if (nsStyleUtil::IsHTMLLink(aContent, tag, aPresContext, &linkState)) {
|
|
switch (linkState) {
|
|
case eLinkState_Unvisited:
|
|
if (mLinkRule)
|
|
aRuleWalker->Forward(mLinkRule);
|
|
break;
|
|
case eLinkState_Visited:
|
|
if (mVisitedRule)
|
|
aRuleWalker->Forward(mVisitedRule);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
// No need to add to the active rule if it's not a link
|
|
if (mActiveRule) { // test active state of link
|
|
nsIEventStateManager* eventStateManager;
|
|
|
|
if ((NS_OK == aPresContext->GetEventStateManager(&eventStateManager)) &&
|
|
(nsnull != eventStateManager)) {
|
|
PRInt32 state;
|
|
if (NS_OK == eventStateManager->GetContentState(aContent, state)) {
|
|
if (state & NS_EVENT_STATE_ACTIVE)
|
|
aRuleWalker->Forward(mActiveRule);
|
|
}
|
|
NS_RELEASE(eventStateManager);
|
|
}
|
|
} // end active rule
|
|
}
|
|
} // end link/visited/active rules
|
|
} // end A tag
|
|
// add the rule to handle text-align for a <th>
|
|
else if (tag == nsHTMLAtoms::th) {
|
|
aRuleWalker->Forward(mTableTHRule);
|
|
}
|
|
else if (tag == nsHTMLAtoms::table) {
|
|
nsCompatibility mode;
|
|
aPresContext->GetCompatibilityMode(&mode);
|
|
if (eCompatibility_NavQuirks == mode) {
|
|
aRuleWalker->Forward(mDocumentColorRule);
|
|
}
|
|
}
|
|
else if (tag == nsHTMLAtoms::html) {
|
|
aRuleWalker->Forward(mDocumentColorRule);
|
|
}
|
|
NS_IF_RELEASE(tag);
|
|
} // end html namespace
|
|
|
|
// just get the style rules from the content
|
|
styledContent->WalkContentStyleRules(aRuleWalker);
|
|
|
|
NS_RELEASE(styledContent);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
// Test if style is dependent on content state
|
|
NS_IMETHODIMP
|
|
HTMLStyleSheetImpl::HasStateDependentStyle(nsIPresContext* aPresContext,
|
|
nsIAtom* aMedium,
|
|
nsIContent* aContent)
|
|
{
|
|
nsresult result = NS_COMFALSE;
|
|
|
|
if (mActiveRule || mLinkRule || mVisitedRule) { // do we have any rules dependent on state?
|
|
nsIStyledContent* styledContent;
|
|
if (NS_SUCCEEDED(aContent->QueryInterface(NS_GET_IID(nsIStyledContent), (void**)&styledContent))) {
|
|
PRInt32 nameSpace;
|
|
styledContent->GetNameSpaceID(nameSpace);
|
|
if (kNameSpaceID_HTML == nameSpace) {
|
|
nsIAtom* tag;
|
|
styledContent->GetTag(tag);
|
|
// if we have anchor colors, check if this is an anchor with an href
|
|
if (tag == nsHTMLAtoms::a) {
|
|
nsAutoString href;
|
|
nsresult attrState = styledContent->GetAttr(kNameSpaceID_None, nsHTMLAtoms::href, href);
|
|
if (NS_CONTENT_ATTR_HAS_VALUE == attrState) {
|
|
result = NS_OK; // yes, style will depend on link state
|
|
}
|
|
}
|
|
NS_IF_RELEASE(tag);
|
|
}
|
|
NS_RELEASE(styledContent);
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
HTMLStyleSheetImpl::RulesMatching(nsIPresContext* aPresContext,
|
|
nsIAtom* aMedium,
|
|
nsIContent* aParentContent,
|
|
nsIAtom* aPseudoTag,
|
|
nsIStyleContext* aParentContext,
|
|
nsICSSPseudoComparator* aComparator,
|
|
nsIRuleWalker* aRuleWalker)
|
|
{
|
|
// no pseudo frame style
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
// nsIStyleSheet api
|
|
NS_IMETHODIMP
|
|
HTMLStyleSheetImpl::GetURL(nsIURI*& aURL) const
|
|
{
|
|
NS_IF_ADDREF(mURL);
|
|
aURL = mURL;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLStyleSheetImpl::GetTitle(nsString& aTitle) const
|
|
{
|
|
aTitle.Truncate();
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLStyleSheetImpl::GetType(nsString& aType) const
|
|
{
|
|
aType.AssignWithConversion("text/html");
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLStyleSheetImpl::GetMediumCount(PRInt32& aCount) const
|
|
{
|
|
aCount = 0;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLStyleSheetImpl::GetMediumAt(PRInt32 aIndex, nsIAtom*& aMedium) const
|
|
{
|
|
aMedium = nsnull;
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
|
|
NS_IMETHODIMP_(PRBool)
|
|
HTMLStyleSheetImpl::UseForMedium(nsIAtom* aMedium) const
|
|
{
|
|
return PR_TRUE; // works for all media
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
HTMLStyleSheetImpl::GetEnabled(PRBool& aEnabled) const
|
|
{
|
|
aEnabled = PR_TRUE;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLStyleSheetImpl::SetEnabled(PRBool aEnabled)
|
|
{ // these can't be disabled
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLStyleSheetImpl::GetParentSheet(nsIStyleSheet*& aParent) const
|
|
{
|
|
aParent = nsnull;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLStyleSheetImpl::GetOwningDocument(nsIDocument*& aDocument) const
|
|
{
|
|
NS_IF_ADDREF(mDocument);
|
|
aDocument = mDocument;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLStyleSheetImpl::SetOwningDocument(nsIDocument* aDocument)
|
|
{
|
|
mDocument = aDocument; // not refcounted
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLStyleSheetImpl::Init(nsIURI* aURL, nsIDocument* aDocument)
|
|
{
|
|
NS_PRECONDITION(aURL && aDocument, "null ptr");
|
|
if (! aURL || ! aDocument)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
if (mURL || mDocument)
|
|
return NS_ERROR_ALREADY_INITIALIZED;
|
|
|
|
mDocument = aDocument; // not refcounted!
|
|
mURL = aURL;
|
|
NS_ADDREF(mURL);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLStyleSheetImpl::Reset(nsIURI* aURL)
|
|
{
|
|
NS_IF_RELEASE(mURL);
|
|
mURL = aURL;
|
|
NS_ADDREF(mURL);
|
|
|
|
if (nsnull != mLinkRule) {
|
|
mLinkRule->mSheet = nsnull;
|
|
NS_RELEASE(mLinkRule);
|
|
}
|
|
if (nsnull != mVisitedRule) {
|
|
mVisitedRule->mSheet = nsnull;
|
|
NS_RELEASE(mVisitedRule);
|
|
}
|
|
if (nsnull != mActiveRule) {
|
|
mActiveRule->mSheet = nsnull;
|
|
NS_RELEASE(mActiveRule);
|
|
}
|
|
mDocumentColorRule->Reset();
|
|
mTableTHRule->Reset();
|
|
|
|
mMappedAttrTable.Enumerate(MappedDropSheet);
|
|
mMappedAttrTable.Reset();
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLStyleSheetImpl::GetLinkColor(nscolor& aColor)
|
|
{
|
|
if (nsnull == mLinkRule) {
|
|
return NS_HTML_STYLE_PROPERTY_NOT_THERE;
|
|
}
|
|
else {
|
|
aColor = mLinkRule->mColor;
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLStyleSheetImpl::GetActiveLinkColor(nscolor& aColor)
|
|
{
|
|
if (nsnull == mActiveRule) {
|
|
return NS_HTML_STYLE_PROPERTY_NOT_THERE;
|
|
}
|
|
else {
|
|
aColor = mActiveRule->mColor;
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLStyleSheetImpl::GetVisitedLinkColor(nscolor& aColor)
|
|
{
|
|
if (nsnull == mVisitedRule) {
|
|
return NS_HTML_STYLE_PROPERTY_NOT_THERE;
|
|
}
|
|
else {
|
|
aColor = mVisitedRule->mColor;
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLStyleSheetImpl::GetDocumentForegroundColor(nscolor& aColor)
|
|
{
|
|
if (!mDocumentColorRule->mForegroundSet)
|
|
return NS_HTML_STYLE_PROPERTY_NOT_THERE;
|
|
|
|
aColor = mDocumentColorRule->mColor;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLStyleSheetImpl::GetDocumentBackgroundColor(nscolor& aColor)
|
|
{
|
|
if (!mDocumentColorRule->mBackgroundSet)
|
|
return NS_HTML_STYLE_PROPERTY_NOT_THERE;
|
|
|
|
aColor = mDocumentColorRule->mBackgroundColor;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLStyleSheetImpl::SetLinkColor(nscolor aColor)
|
|
{
|
|
if (nsnull == mLinkRule) {
|
|
mLinkRule = new HTMLColorRule(this);
|
|
if (nsnull == mLinkRule) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
NS_ADDREF(mLinkRule);
|
|
}
|
|
mLinkRule->mColor = aColor;
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP HTMLStyleSheetImpl::SetActiveLinkColor(nscolor aColor)
|
|
{
|
|
if (nsnull == mActiveRule) {
|
|
mActiveRule = new HTMLColorRule(this);
|
|
if (nsnull == mActiveRule) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
NS_ADDREF(mActiveRule);
|
|
}
|
|
mActiveRule->mColor = aColor;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLStyleSheetImpl::SetVisitedLinkColor(nscolor aColor)
|
|
{
|
|
if (nsnull == mVisitedRule) {
|
|
mVisitedRule = new HTMLColorRule(this);
|
|
if (nsnull == mVisitedRule) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
NS_ADDREF(mVisitedRule);
|
|
}
|
|
mVisitedRule->mColor = aColor;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLStyleSheetImpl::SetDocumentForegroundColor(nscolor aColor)
|
|
{
|
|
mDocumentColorRule->mColor = aColor;
|
|
mDocumentColorRule->mForegroundSet = PR_TRUE;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLStyleSheetImpl::SetDocumentBackgroundColor(nscolor aColor)
|
|
{
|
|
mDocumentColorRule->mBackgroundColor = aColor;
|
|
mDocumentColorRule->mBackgroundSet = PR_TRUE;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLStyleSheetImpl::SetAttributesFor(nsIHTMLContent* aContent, nsIHTMLAttributes*& aAttributes)
|
|
{
|
|
if (aAttributes) {
|
|
aAttributes->SetStyleSheet(this);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLStyleSheetImpl::SetAttributeFor(nsIAtom* aAttribute,
|
|
const nsAReadableString& aValue,
|
|
PRBool aMappedToStyle,
|
|
nsIHTMLContent* aContent,
|
|
nsIHTMLAttributes*& aAttributes)
|
|
{
|
|
nsresult result = NS_OK;
|
|
|
|
if (! aAttributes) {
|
|
result = nsComponentManager::CreateInstance(kHTMLAttributesCID, nsnull,
|
|
NS_GET_IID(nsIHTMLAttributes),
|
|
(void**)&aAttributes);
|
|
}
|
|
if (aAttributes) {
|
|
result = aAttributes->SetAttributeFor(aAttribute, aValue, aMappedToStyle,
|
|
aContent, this);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLStyleSheetImpl::SetAttributeFor(nsIAtom* aAttribute,
|
|
const nsHTMLValue& aValue,
|
|
PRBool aMappedToStyle,
|
|
nsIHTMLContent* aContent,
|
|
nsIHTMLAttributes*& aAttributes)
|
|
{
|
|
nsresult result = NS_OK;
|
|
|
|
if ((! aAttributes) && (eHTMLUnit_Null != aValue.GetUnit())) {
|
|
result = nsComponentManager::CreateInstance(kHTMLAttributesCID, nsnull,
|
|
NS_GET_IID(nsIHTMLAttributes),
|
|
(void**)&aAttributes);
|
|
}
|
|
if (aAttributes) {
|
|
PRInt32 count;
|
|
result = aAttributes->SetAttributeFor(aAttribute, aValue, aMappedToStyle,
|
|
aContent, this, count);
|
|
if (0 == count) {
|
|
NS_RELEASE(aAttributes);
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
NS_IMETHODIMP HTMLStyleSheetImpl::UnsetAttributeFor(nsIAtom* aAttribute,
|
|
nsIHTMLContent* aContent,
|
|
nsIHTMLAttributes*& aAttributes)
|
|
{
|
|
nsresult result = NS_OK;
|
|
|
|
if (aAttributes) {
|
|
PRInt32 count;
|
|
result = aAttributes->UnsetAttributeFor(aAttribute, aContent, this, count);
|
|
if (0 == count) {
|
|
NS_RELEASE(aAttributes);
|
|
}
|
|
}
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLStyleSheetImpl::UniqueMappedAttributes(nsIHTMLMappedAttributes* aMapped,
|
|
nsIHTMLMappedAttributes*& aUniqueMapped)
|
|
{
|
|
nsresult result = NS_OK;
|
|
|
|
AttributeKey key(aMapped);
|
|
nsIHTMLMappedAttributes* sharedAttrs = (nsIHTMLMappedAttributes*)mMappedAttrTable.Get(&key);
|
|
if (nsnull == sharedAttrs) { // we have a new unique set
|
|
mMappedAttrTable.Put(&key, aMapped);
|
|
aMapped->SetUniqued(PR_TRUE);
|
|
NS_ADDREF(aMapped);
|
|
aUniqueMapped = aMapped;
|
|
}
|
|
else { // found existing set
|
|
aUniqueMapped = sharedAttrs;
|
|
NS_ADDREF(aUniqueMapped);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLStyleSheetImpl::DropMappedAttributes(nsIHTMLMappedAttributes* aMapped)
|
|
{
|
|
if (aMapped) {
|
|
PRBool inTable = PR_FALSE;
|
|
aMapped->GetUniqued(inTable);
|
|
if (inTable) {
|
|
AttributeKey key(aMapped);
|
|
nsIHTMLMappedAttributes* old = (nsIHTMLMappedAttributes*)mMappedAttrTable.Remove(&key);
|
|
NS_ASSERTION(old == aMapped, "not in table");
|
|
aMapped->SetUniqued(PR_FALSE);
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
void HTMLStyleSheetImpl::List(FILE* out, PRInt32 aIndent) const
|
|
{
|
|
// Indent
|
|
for (PRInt32 index = aIndent; --index >= 0; ) fputs(" ", out);
|
|
|
|
fputs("HTML Style Sheet: ", out);
|
|
char* urlSpec = nsnull;
|
|
mURL->GetSpec(&urlSpec);
|
|
if (urlSpec) {
|
|
fputs(urlSpec, out);
|
|
nsCRT::free(urlSpec);
|
|
}
|
|
fputs("\n", out);
|
|
}
|
|
|
|
|
|
struct MappedAttributeSizeEnumData {
|
|
MappedAttributeSizeEnumData(nsISizeOfHandler *aSizeOfHandler,
|
|
nsUniqueStyleItems *aUniqueStyleItem)
|
|
|
|
{
|
|
aHandler = aSizeOfHandler;
|
|
uniqueItems = aUniqueStyleItem;
|
|
}
|
|
// weak references all 'round
|
|
|
|
nsISizeOfHandler *aHandler;
|
|
nsUniqueStyleItems *uniqueItems;
|
|
};
|
|
|
|
static
|
|
PRBool PR_CALLBACK MappedSizeAttributes(nsHashKey *aKey, void *aData, void* closure)
|
|
{
|
|
MappedAttributeSizeEnumData *pData = (MappedAttributeSizeEnumData *)closure;
|
|
NS_ASSERTION(pData,"null closure is not supported");
|
|
nsIHTMLMappedAttributes* mapped = (nsIHTMLMappedAttributes*)aData;
|
|
NS_ASSERTION(mapped, "null item in enumeration fcn is not supported");
|
|
// if there is an attribute and it has not been counted, the get its size
|
|
if(mapped){
|
|
PRUint32 size=0;
|
|
mapped->SizeOf(pData->aHandler, size);
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
* SizeOf method:
|
|
*
|
|
* Self (reported as HTMLStyleSheetImpl's size):
|
|
* 1) sizeof(*this)
|
|
*
|
|
* Contained / Aggregated data (not reported as HTMLStyleSheetImpl's size):
|
|
* 1) Not really delegated, but counted seperately:
|
|
* - mLinkRule
|
|
* - mVisitedRule
|
|
* - mActiveRule
|
|
* - mDocumentColorRule
|
|
* - mTableTHRule
|
|
* - mMappedAttrTable
|
|
* 2) Delegates (really) to the MappedAttributes in the mMappedAttrTable
|
|
*
|
|
* Children / siblings / parents:
|
|
* none
|
|
*
|
|
******************************************************************************/
|
|
void HTMLStyleSheetImpl::SizeOf(nsISizeOfHandler *aSizeOfHandler, PRUint32 &aSize)
|
|
{
|
|
NS_ASSERTION(aSizeOfHandler != nsnull, "SizeOf handler cannot be null");
|
|
|
|
// first get the unique items collection
|
|
UNIQUE_STYLE_ITEMS(uniqueItems);
|
|
if(! uniqueItems->AddItem((void*)this)){
|
|
// this style sheet is lared accounted for
|
|
return;
|
|
}
|
|
|
|
PRUint32 localSize=0;
|
|
|
|
// create a tag for this instance
|
|
nsCOMPtr<nsIAtom> tag;
|
|
tag = getter_AddRefs(NS_NewAtom("HTMLStyleSheet"));
|
|
// get the size of an empty instance and add to the sizeof handler
|
|
aSize = sizeof(HTMLStyleSheetImpl);
|
|
aSizeOfHandler->AddSize(tag,aSize);
|
|
|
|
// now gather up the sizes of the data members
|
|
// - mLinkRule : sizeof object
|
|
// - mVisitedRule : sizeof object
|
|
// - mActiveRule : sizeof object
|
|
// - mDocumentColorRule : sizeof object
|
|
// - mTableTHRule : sizeof object
|
|
// - mMappedAttrTable
|
|
|
|
if(mLinkRule && uniqueItems->AddItem((void*)mLinkRule)){
|
|
localSize = sizeof(*mLinkRule);
|
|
tag = getter_AddRefs(NS_NewAtom("LinkRule"));
|
|
aSizeOfHandler->AddSize(tag,localSize);
|
|
}
|
|
if(mVisitedRule && uniqueItems->AddItem((void*)mVisitedRule)){
|
|
localSize = sizeof(*mVisitedRule);
|
|
tag = getter_AddRefs(NS_NewAtom("VisitedRule"));
|
|
aSizeOfHandler->AddSize(tag,localSize);
|
|
}
|
|
if(mActiveRule && uniqueItems->AddItem((void*)mActiveRule)){
|
|
localSize = sizeof(*mActiveRule);
|
|
tag = getter_AddRefs(NS_NewAtom("ActiveRule"));
|
|
aSizeOfHandler->AddSize(tag,localSize);
|
|
}
|
|
if(uniqueItems->AddItem((void*)mDocumentColorRule)){
|
|
localSize = sizeof(*mDocumentColorRule);
|
|
tag = getter_AddRefs(NS_NewAtom("DocumentColorRule"));
|
|
aSizeOfHandler->AddSize(tag,localSize);
|
|
}
|
|
if(uniqueItems->AddItem((void*)mTableTHRule)){
|
|
localSize = sizeof(*mTableTHRule);
|
|
tag = getter_AddRefs(NS_NewAtom("TableTHRule"));
|
|
aSizeOfHandler->AddSize(tag,localSize);
|
|
}
|
|
|
|
// for the AttrTable it is kindof sleezy:
|
|
// We want the hash table overhead as well as the entries it contains
|
|
//
|
|
// we get the overall size of the hashtable, and if there are entries,
|
|
// we calculate a rough overhead estimate as:
|
|
// number of entries X sizeof each hash-entry
|
|
// + the size of a hash table (see plhash.h and nsHashTable.h)
|
|
// then we add up the size of each unique attribute
|
|
localSize = sizeof(mMappedAttrTable);
|
|
if(mMappedAttrTable.Count() >0){
|
|
localSize += sizeof(PLHashTable);
|
|
localSize += mMappedAttrTable.Count() * sizeof(PLHashEntry);
|
|
}
|
|
tag = getter_AddRefs(NS_NewAtom("MappedAttrTable"));
|
|
aSizeOfHandler->AddSize(tag,localSize);
|
|
|
|
// now get each unique attribute
|
|
MappedAttributeSizeEnumData sizeEnumData(aSizeOfHandler, uniqueItems);
|
|
mMappedAttrTable.Enumerate(MappedSizeAttributes, &sizeEnumData);
|
|
|
|
// that's it
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLStyleSheetImpl::AttributeAffectsStyle(nsIAtom *aAttribute,
|
|
nsIContent *aContent,
|
|
PRBool &aAffects)
|
|
{
|
|
// XXX we should be checking to see if this is an href on an <A> being
|
|
// XXX tweaked, in which case we really want to restyle
|
|
aAffects = PR_FALSE;
|
|
return NS_OK;
|
|
}
|
|
|
|
// XXX For convenience and backwards compatibility
|
|
NS_HTML nsresult
|
|
NS_NewHTMLStyleSheet(nsIHTMLStyleSheet** aInstancePtrResult, nsIURI* aURL,
|
|
nsIDocument* aDocument)
|
|
{
|
|
nsresult rv;
|
|
nsIHTMLStyleSheet* sheet;
|
|
if (NS_FAILED(rv = NS_NewHTMLStyleSheet(&sheet)))
|
|
return rv;
|
|
|
|
if (NS_FAILED(rv = sheet->Init(aURL, aDocument))) {
|
|
NS_RELEASE(sheet);
|
|
return rv;
|
|
}
|
|
|
|
*aInstancePtrResult = sheet;
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
NS_HTML nsresult
|
|
NS_NewHTMLStyleSheet(nsIHTMLStyleSheet** aInstancePtrResult)
|
|
{
|
|
NS_PRECONDITION(aInstancePtrResult, "null out param");
|
|
|
|
HTMLStyleSheetImpl *it = new HTMLStyleSheetImpl();
|
|
if (!it) {
|
|
*aInstancePtrResult = nsnull;
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
NS_ADDREF(it);
|
|
nsresult rv = it->Init();
|
|
if (NS_FAILED(rv))
|
|
NS_RELEASE(it);
|
|
|
|
*aInstancePtrResult = it; // NS_ADDREF above, or set to null by NS_RELEASE
|
|
return rv;
|
|
}
|