зеркало из https://github.com/mozilla/pjs.git
3986 строки
110 KiB
C++
3986 строки
110 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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* IBM Corp.
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* Daniel Glazman <glazman@netscape.com>
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*/
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#include "nsICSSStyleSheet.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 "nsICSSPseudoComparator.h"
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#include "nsICSSStyleRuleProcessor.h"
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#include "nsICSSStyleRule.h"
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#include "nsICSSNameSpaceRule.h"
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#include "nsICSSMediaRule.h"
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#include "nsIHTMLContent.h"
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#include "nsIDocument.h"
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#include "nsIPresContext.h"
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#include "nsIEventStateManager.h"
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#include "nsHTMLAtoms.h"
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#include "nsLayoutAtoms.h"
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#include "nsIFrame.h"
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#include "nsString.h"
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#include "nsVoidArray.h"
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#include "nsIUnicharInputStream.h"
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#include "nsHTMLIIDs.h"
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#include "nsIDOMHTMLAnchorElement.h"
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#include "nsIDOMHTMLLinkElement.h"
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#include "nsIDOMHTMLAreaElement.h"
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#include "nsIDOMStyleSheetList.h"
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#include "nsIDOMCSSStyleSheet.h"
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#include "nsIDOMCSSStyleRule.h"
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#include "nsIDOMCSSRuleList.h"
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#include "nsIDOMMediaList.h"
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#include "nsIDOMNode.h"
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#include "nsDOMError.h"
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#include "nsIPresShell.h"
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#include "nsICSSParser.h"
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#include "nsIRuleWalker.h"
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#include "nsCSSAtoms.h"
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#include "nsINameSpaceManager.h"
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#include "nsINameSpace.h"
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#include "nsITextContent.h"
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#include "prlog.h"
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#include "nsCOMPtr.h"
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#include "nsIStyleSet.h"
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#include "nsIStyleRuleSupplier.h"
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#include "nsISizeOfHandler.h"
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#include "nsStyleUtil.h"
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#include "nsQuickSort.h"
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#ifdef MOZ_XUL
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#include "nsIXULContent.h"
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#endif
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#include "nsContentUtils.h"
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//#define DEBUG_RULES
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//#define EVENT_DEBUG
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// ----------------------
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// Rule hash keys
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//
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// An |AtomKey| is to be used for storage in the hashtable, and a
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// |DependentAtomKey| should be used on the stack to avoid the performance
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// cost of refcounting an atom that one is assured to own for the lifetime
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// of the key.
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class AtomKey_base : public nsHashKey {
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public:
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virtual PRUint32 HashCode(void) const;
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virtual PRBool Equals(const nsHashKey *aKey) const;
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nsIAtom* mAtom;
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};
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class AtomKey : public AtomKey_base {
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public:
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AtomKey(nsIAtom* aAtom);
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AtomKey(const AtomKey_base& aKey);
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virtual ~AtomKey(void);
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virtual nsHashKey *Clone(void) const;
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};
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class DependentAtomKey : public AtomKey_base {
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public:
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DependentAtomKey(nsIAtom* aAtom)
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{
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mAtom = aAtom;
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}
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DependentAtomKey(const DependentAtomKey& aKey);
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virtual ~DependentAtomKey(void)
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{
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}
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virtual nsHashKey *Clone(void) const;
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};
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PRUint32 AtomKey_base::HashCode(void) const
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{
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return (PRUint32)mAtom;
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}
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PRBool AtomKey_base::Equals(const nsHashKey* aKey) const
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{
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return PRBool (((AtomKey_base*)aKey)->mAtom == mAtom);
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}
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AtomKey::AtomKey(nsIAtom* aAtom)
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{
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mAtom = aAtom;
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NS_ADDREF(mAtom);
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}
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AtomKey::AtomKey(const AtomKey_base& aKey)
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{
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mAtom = aKey.mAtom;
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NS_ADDREF(mAtom);
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}
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AtomKey::~AtomKey(void)
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{
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NS_RELEASE(mAtom);
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}
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nsHashKey* AtomKey::Clone(void) const
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{
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return new AtomKey(*this);
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}
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DependentAtomKey::DependentAtomKey(const DependentAtomKey& aKey)
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{
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NS_NOTREACHED("Should never clone to a dependent atom key.");
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mAtom = aKey.mAtom;
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}
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nsHashKey* DependentAtomKey::Clone(void) const
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{
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return new AtomKey(*this); // return a non-dependent key
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}
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// ----------------------
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// Rule array hash key
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//
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class nsInt32Key: public nsHashKey {
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public:
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nsInt32Key(PRInt32 aInt);
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nsInt32Key(const nsInt32Key& aKey);
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virtual ~nsInt32Key(void);
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virtual PRUint32 HashCode(void) const;
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virtual PRBool Equals(const nsHashKey *aKey) const;
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virtual nsHashKey *Clone(void) const;
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PRInt32 mInt;
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};
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nsInt32Key::nsInt32Key(PRInt32 aInt) :
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mInt(aInt)
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{
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}
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nsInt32Key::~nsInt32Key(void)
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{
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}
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PRUint32 nsInt32Key::HashCode(void) const
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{
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return (PRUint32)mInt;
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}
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PRBool nsInt32Key::Equals(const nsHashKey* aKey) const
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{
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return PRBool (((nsInt32Key*)aKey)->mInt == mInt);
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}
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nsHashKey* nsInt32Key::Clone(void) const
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{
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return new nsInt32Key(mInt);
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}
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struct RuleValue {
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RuleValue(nsICSSStyleRule* aRule, PRInt32 aIndex)
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{
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mRule = aRule;
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mIndex = aIndex;
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mNext = nsnull;
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}
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~RuleValue(void)
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{
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if ((nsnull != mNext) && (nsnull != mNext->mNext)) {
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delete mNext; // don't delete that last in the chain, it's shared
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}
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}
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nsICSSStyleRule* mRule;
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PRInt32 mIndex;
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RuleValue* mNext;
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};
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// ------------------------------
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// Rule hash table
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//
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#undef RULE_HASH_STATS
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#undef PRINT_UNIVERSAL_RULES
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#ifdef DEBUG_dbaron
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#define RULE_HASH_STATS
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#define PRINT_UNIVERSAL_RULES
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#endif
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// Enumerator callback function.
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typedef void (*RuleEnumFunc)(nsICSSStyleRule* aRule, void *aData);
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class RuleHash {
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public:
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RuleHash(void);
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~RuleHash(void);
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void AppendRule(nsICSSStyleRule* aRule);
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void EnumerateAllRules(PRInt32 aNameSpace, nsIAtom* aTag, nsIAtom* aID,
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const nsVoidArray& aClassList,
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RuleEnumFunc aFunc, void* aData);
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void EnumerateTagRules(nsIAtom* aTag,
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RuleEnumFunc aFunc, void* aData);
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protected:
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void AppendRuleToTable(nsHashtable& aTable, nsIAtom* aAtom, nsICSSStyleRule* aRule);
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void AppendRuleToTable(nsHashtable& aTable, PRInt32 aNameSpace, nsICSSStyleRule* aRule);
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PRInt32 mRuleCount;
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nsHashtable mIdTable;
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nsHashtable mClassTable;
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nsHashtable mTagTable;
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nsHashtable mNameSpaceTable;
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RuleValue** mEnumList;
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PRInt32 mEnumListSize;
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RuleValue mEndValue;
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#ifdef RULE_HASH_STATS
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PRUint32 mUniversalSelectors;
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PRUint32 mNameSpaceSelectors;
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PRUint32 mTagSelectors;
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PRUint32 mClassSelectors;
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PRUint32 mIdSelectors;
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PRUint32 mElementsMatched;
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PRUint32 mPseudosMatched;
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PRUint32 mElementUniversalCalls;
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PRUint32 mElementNameSpaceCalls;
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PRUint32 mElementTagCalls;
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PRUint32 mElementClassCalls;
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PRUint32 mElementIdCalls;
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PRUint32 mPseudoTagCalls;
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#endif // RULE_HASH_STATS
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};
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RuleHash::RuleHash(void)
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: mRuleCount(0),
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mIdTable(), mClassTable(), mTagTable(), mNameSpaceTable(),
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mEnumList(nsnull), mEnumListSize(0),
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mEndValue(nsnull, -1)
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#ifdef RULE_HASH_STATS
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,
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mUniversalSelectors(0),
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mNameSpaceSelectors(0),
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mTagSelectors(0),
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mClassSelectors(0),
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mIdSelectors(0),
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mElementsMatched(0),
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mPseudosMatched(0),
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mElementUniversalCalls(0),
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mElementNameSpaceCalls(0),
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mElementTagCalls(0),
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mElementClassCalls(0),
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mElementIdCalls(0),
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mPseudoTagCalls(0)
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#endif
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{
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}
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static PRBool PR_CALLBACK DeleteValue(nsHashKey* aKey, void* aValue, void* closure)
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{
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delete ((RuleValue*)aValue);
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return PR_TRUE;
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}
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RuleHash::~RuleHash(void)
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{
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#ifdef RULE_HASH_STATS
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printf(
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"RuleHash(%p):\n"
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" Selectors: Universal (%lu) NameSpace(%lu) Tag(%lu) Class(%lu) Id(%lu)\n"
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" Content Nodes: Elements(%lu) Pseudo-Elements(%lu)\n"
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" Element Calls: Universal(%lu) NameSpace(%lu) Tag(%lu) Class(%lu) Id(%lu)\n"
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" Pseudo-Element Calls: Tag(%lu)\n",
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this,
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mUniversalSelectors, mNameSpaceSelectors, mTagSelectors,
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mClassSelectors, mIdSelectors,
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mElementsMatched,
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mPseudosMatched,
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mElementUniversalCalls, mElementNameSpaceCalls, mElementTagCalls,
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mElementClassCalls, mElementIdCalls,
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mPseudoTagCalls);
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#ifdef PRINT_UNIVERSAL_RULES
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{
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DependentAtomKey universalKey(nsCSSAtoms::universalSelector);
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RuleValue* value = (RuleValue*)mTagTable.Get(&universalKey);
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if (value) {
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printf(" Universal rules:\n");
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do {
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nsAutoString selectorText;
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PRUint32 lineNumber = value->mRule->GetLineNumber();
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value->mRule->GetSourceSelectorText(selectorText);
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printf(" line %d, %s\n",
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lineNumber, NS_ConvertUCS2toUTF8(selectorText).get());
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value = value->mNext;
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} while (value != &mEndValue);
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}
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}
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#endif // PRINT_UNIVERSAL_RULES
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#endif // RULE_HASH_STATS
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mIdTable.Enumerate(DeleteValue);
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mClassTable.Enumerate(DeleteValue);
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mTagTable.Enumerate(DeleteValue);
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mNameSpaceTable.Enumerate(DeleteValue);
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if (nsnull != mEnumList) {
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delete [] mEnumList;
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}
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}
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void RuleHash::AppendRuleToTable(nsHashtable& aTable, nsIAtom* aAtom, nsICSSStyleRule* aRule)
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{
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NS_ASSERTION(nsnull != aAtom, "null hash key");
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DependentAtomKey key(aAtom);
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RuleValue* value = (RuleValue*)aTable.Get(&key);
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if (nsnull == value) {
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value = new RuleValue(aRule, mRuleCount++);
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aTable.Put(&key, value);
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value->mNext = &mEndValue;
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}
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else {
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while (&mEndValue != value->mNext) {
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value = value->mNext;
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}
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value->mNext = new RuleValue(aRule, mRuleCount++);
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value->mNext->mNext = &mEndValue;
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}
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mEndValue.mIndex = mRuleCount;
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}
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void RuleHash::AppendRuleToTable(nsHashtable& aTable, PRInt32 aNameSpace, nsICSSStyleRule* aRule)
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{
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nsInt32Key key(aNameSpace);
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RuleValue* value = (RuleValue*)aTable.Get(&key);
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if (nsnull == value) {
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value = new RuleValue(aRule, mRuleCount++);
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aTable.Put(&key, value);
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value->mNext = &mEndValue;
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}
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else {
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while (&mEndValue != value->mNext) {
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value = value->mNext;
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}
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value->mNext = new RuleValue(aRule, mRuleCount++);
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value->mNext->mNext = &mEndValue;
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}
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mEndValue.mIndex = mRuleCount;
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}
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void RuleHash::AppendRule(nsICSSStyleRule* aRule)
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{
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nsCSSSelector* selector = aRule->FirstSelector();
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if (nsnull != selector->mIDList) {
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AppendRuleToTable(mIdTable, selector->mIDList->mAtom, aRule);
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#ifdef RULE_HASH_STATS
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++mIdSelectors;
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#endif
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}
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else if (nsnull != selector->mClassList) {
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AppendRuleToTable(mClassTable, selector->mClassList->mAtom, aRule);
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#ifdef RULE_HASH_STATS
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++mClassSelectors;
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#endif
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}
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else if (nsnull != selector->mTag) {
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AppendRuleToTable(mTagTable, selector->mTag, aRule);
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#ifdef RULE_HASH_STATS
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++mTagSelectors;
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#endif
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}
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else if (kNameSpaceID_Unknown != selector->mNameSpace) {
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AppendRuleToTable(mNameSpaceTable, selector->mNameSpace, aRule);
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#ifdef RULE_HASH_STATS
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++mNameSpaceSelectors;
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#endif
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}
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else { // universal tag selector
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AppendRuleToTable(mTagTable, nsCSSAtoms::universalSelector, aRule);
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#ifdef RULE_HASH_STATS
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++mUniversalSelectors;
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#endif
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}
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}
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// this should cover practically all cases so we don't need to reallocate
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#define MIN_ENUM_LIST_SIZE 8
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void RuleHash::EnumerateAllRules(PRInt32 aNameSpace, nsIAtom* aTag,
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nsIAtom* aID, const nsVoidArray& aClassList,
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RuleEnumFunc aFunc, void* aData)
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{
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PRInt32 classCount = aClassList.Count();
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PRInt32 testCount = classCount + 1; // + 1 for universal selector
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if (nsnull != aTag) {
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testCount++;
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}
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if (nsnull != aID) {
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testCount++;
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}
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if (kNameSpaceID_Unknown != aNameSpace) {
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testCount++;
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}
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if (mEnumListSize < testCount) {
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delete [] mEnumList;
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mEnumListSize = PR_MAX(testCount, MIN_ENUM_LIST_SIZE);
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mEnumList = new RuleValue*[mEnumListSize];
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}
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PRInt32 index;
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PRInt32 valueCount = 0;
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#ifdef RULE_HASH_STATS
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++mElementsMatched;
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#endif
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{ // universal tag rules
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DependentAtomKey universalKey(nsCSSAtoms::universalSelector);
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RuleValue* value = (RuleValue*)mTagTable.Get(&universalKey);
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if (nsnull != value) {
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mEnumList[valueCount++] = value;
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#ifdef RULE_HASH_STATS
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do {
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++mElementUniversalCalls;
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value = value->mNext;
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} while (value != &mEndValue);
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#endif
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}
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}
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// universal rules within the namespace
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if (kNameSpaceID_Unknown != aNameSpace) {
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nsInt32Key nameSpaceKey(aNameSpace);
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RuleValue* value = (RuleValue*)mNameSpaceTable.Get(&nameSpaceKey);
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if (nsnull != value) {
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mEnumList[valueCount++] = value;
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#ifdef RULE_HASH_STATS
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do {
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++mElementNameSpaceCalls;
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value = value->mNext;
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} while (value != &mEndValue);
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#endif
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}
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}
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if (nsnull != aTag) {
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DependentAtomKey tagKey(aTag);
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RuleValue* value = (RuleValue*)mTagTable.Get(&tagKey);
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if (nsnull != value) {
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mEnumList[valueCount++] = value;
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#ifdef RULE_HASH_STATS
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do {
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++mElementTagCalls;
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value = value->mNext;
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} while (value != &mEndValue);
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#endif
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}
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}
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if (nsnull != aID) {
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DependentAtomKey idKey(aID);
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RuleValue* value = (RuleValue*)mIdTable.Get(&idKey);
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if (nsnull != value) {
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mEnumList[valueCount++] = value;
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#ifdef RULE_HASH_STATS
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do {
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++mElementIdCalls;
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value = value->mNext;
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} while (value != &mEndValue);
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#endif
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}
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}
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for (index = 0; index < classCount; index++) {
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nsIAtom* classAtom = (nsIAtom*)aClassList.ElementAt(index);
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DependentAtomKey classKey(classAtom);
|
|
RuleValue* value = (RuleValue*)mClassTable.Get(&classKey);
|
|
if (nsnull != value) {
|
|
mEnumList[valueCount++] = value;
|
|
#ifdef RULE_HASH_STATS
|
|
do {
|
|
++mElementClassCalls;
|
|
value = value->mNext;
|
|
} while (value != &mEndValue);
|
|
#endif
|
|
}
|
|
}
|
|
NS_ASSERTION(valueCount <= testCount, "values exceeded list size");
|
|
|
|
if (1 < valueCount) {
|
|
PRInt32 ruleIndex = mRuleCount;
|
|
PRInt32 valueIndex = -1;
|
|
|
|
for (index = 0; index < valueCount; index++) {
|
|
if (mEnumList[index]->mIndex < ruleIndex) {
|
|
ruleIndex = mEnumList[index]->mIndex;
|
|
valueIndex = index;
|
|
}
|
|
}
|
|
do {
|
|
(*aFunc)(mEnumList[valueIndex]->mRule, aData);
|
|
mEnumList[valueIndex] = mEnumList[valueIndex]->mNext;
|
|
ruleIndex = mEnumList[valueIndex]->mIndex;
|
|
for (index = 0; index < valueCount; index++) {
|
|
if (mEnumList[index]->mIndex < ruleIndex) {
|
|
ruleIndex = mEnumList[index]->mIndex;
|
|
valueIndex = index;
|
|
}
|
|
}
|
|
} while (ruleIndex < mRuleCount);
|
|
}
|
|
else if (0 < valueCount) { // fast loop over single value
|
|
RuleValue* value = mEnumList[0];
|
|
do {
|
|
(*aFunc)(value->mRule, aData);
|
|
value = value->mNext;
|
|
} while (&mEndValue != value);
|
|
}
|
|
}
|
|
|
|
void RuleHash::EnumerateTagRules(nsIAtom* aTag, RuleEnumFunc aFunc, void* aData)
|
|
{
|
|
DependentAtomKey tagKey(aTag);
|
|
RuleValue* tagValue = (RuleValue*)mTagTable.Get(&tagKey);
|
|
|
|
#ifdef RULE_HASH_STATS
|
|
++mPseudosMatched;
|
|
#endif
|
|
if (tagValue) {
|
|
do {
|
|
#ifdef RULE_HASH_STATS
|
|
++mPseudoTagCalls;
|
|
#endif
|
|
(*aFunc)(tagValue->mRule, aData);
|
|
tagValue = tagValue->mNext;
|
|
} while (&mEndValue != tagValue);
|
|
}
|
|
}
|
|
|
|
//--------------------------------
|
|
|
|
struct RuleCascadeData {
|
|
RuleCascadeData(void)
|
|
: mWeightedRules(nsnull),
|
|
mRuleHash(),
|
|
mStateSelectors()
|
|
{
|
|
NS_NewISupportsArray(&mWeightedRules);
|
|
}
|
|
|
|
~RuleCascadeData(void)
|
|
{
|
|
NS_IF_RELEASE(mWeightedRules);
|
|
}
|
|
nsISupportsArray* mWeightedRules;
|
|
RuleHash mRuleHash;
|
|
nsVoidArray mStateSelectors;
|
|
};
|
|
|
|
// -------------------------------
|
|
// CSS Style Rule processor
|
|
//
|
|
|
|
class CSSRuleProcessor: public nsICSSStyleRuleProcessor {
|
|
public:
|
|
CSSRuleProcessor(void);
|
|
virtual ~CSSRuleProcessor(void);
|
|
|
|
NS_DECL_ISUPPORTS
|
|
|
|
public:
|
|
// nsICSSStyleRuleProcessor
|
|
NS_IMETHOD AppendStyleSheet(nsICSSStyleSheet* aStyleSheet);
|
|
|
|
NS_IMETHOD ClearRuleCascades(void);
|
|
|
|
// nsIStyleRuleProcessor
|
|
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);
|
|
|
|
virtual void SizeOf(nsISizeOfHandler *aSizeofHandler, PRUint32 &aSize);
|
|
|
|
protected:
|
|
RuleCascadeData* GetRuleCascade(nsIAtom* aMedium);
|
|
|
|
static PRBool CascadeSheetRulesInto(nsISupports* aSheet, void* aData);
|
|
|
|
nsISupportsArray* mSheets;
|
|
|
|
nsHashtable* mMediumCascadeTable;
|
|
};
|
|
|
|
// -------------------------------
|
|
// CSS Style Sheet Inner Data Container
|
|
//
|
|
|
|
class CSSStyleSheetInner {
|
|
public:
|
|
CSSStyleSheetInner(nsICSSStyleSheet* aParentSheet);
|
|
CSSStyleSheetInner(CSSStyleSheetInner& aCopy, nsICSSStyleSheet* aParentSheet);
|
|
virtual ~CSSStyleSheetInner(void);
|
|
|
|
virtual CSSStyleSheetInner* CloneFor(nsICSSStyleSheet* aParentSheet);
|
|
virtual void AddSheet(nsICSSStyleSheet* aParentSheet);
|
|
virtual void RemoveSheet(nsICSSStyleSheet* aParentSheet);
|
|
|
|
virtual void RebuildNameSpaces(void);
|
|
|
|
virtual void SizeOf(nsISizeOfHandler *aSizeofHandler, PRUint32 &aSize);
|
|
|
|
nsVoidArray mSheets;
|
|
|
|
nsIURI* mURL;
|
|
|
|
nsISupportsArray* mOrderedRules;
|
|
|
|
nsINameSpace* mNameSpace;
|
|
PRInt32 mDefaultNameSpaceID;
|
|
nsHashtable mRelevantAttributes;
|
|
};
|
|
|
|
|
|
// -------------------------------
|
|
// CSS Style Sheet
|
|
//
|
|
|
|
class CSSImportsCollectionImpl;
|
|
class CSSRuleListImpl;
|
|
class DOMMediaListImpl;
|
|
|
|
class CSSStyleSheetImpl : public nsICSSStyleSheet,
|
|
public nsIDOMCSSStyleSheet
|
|
{
|
|
public:
|
|
void* operator new(size_t size);
|
|
void* operator new(size_t size, nsIArena* aArena);
|
|
void operator delete(void* ptr);
|
|
|
|
CSSStyleSheetImpl();
|
|
|
|
NS_IMETHOD QueryInterface(const nsIID& aIID, void** aInstancePtr);
|
|
NS_IMETHOD_(nsrefcnt) AddRef();
|
|
NS_IMETHOD_(nsrefcnt) Release();
|
|
|
|
// basic style sheet data
|
|
NS_IMETHOD Init(nsIURI* aURL);
|
|
NS_IMETHOD GetURL(nsIURI*& aURL) const;
|
|
NS_IMETHOD GetTitle(nsString& aTitle) const;
|
|
NS_IMETHOD SetTitle(const nsString& aTitle);
|
|
NS_IMETHOD GetType(nsString& aType) const;
|
|
NS_IMETHOD GetMediumCount(PRInt32& aCount) const;
|
|
NS_IMETHOD GetMediumAt(PRInt32 aIndex, nsIAtom*& aMedium) const;
|
|
NS_IMETHOD UseForMedium(nsIAtom* aMedium) const;
|
|
NS_IMETHOD AppendMedium(nsIAtom* aMedium);
|
|
NS_IMETHOD ClearMedia(void);
|
|
|
|
NS_IMETHOD GetEnabled(PRBool& aEnabled) const;
|
|
NS_IMETHOD SetEnabled(PRBool aEnabled);
|
|
|
|
// style sheet owner info
|
|
NS_IMETHOD GetParentSheet(nsIStyleSheet*& aParent) const; // may be null
|
|
NS_IMETHOD GetOwningDocument(nsIDocument*& aDocument) const;
|
|
NS_IMETHOD SetOwningDocument(nsIDocument* aDocument);
|
|
NS_IMETHOD SetOwningNode(nsIDOMNode* aOwningNode);
|
|
|
|
NS_IMETHOD GetStyleRuleProcessor(nsIStyleRuleProcessor*& aProcessor,
|
|
nsIStyleRuleProcessor* aPrevProcessor);
|
|
NS_IMETHOD DropRuleProcessorReference(nsICSSStyleRuleProcessor* aProcessor);
|
|
|
|
|
|
NS_IMETHOD ContainsStyleSheet(nsIURI* aURL, PRBool& aContains, nsIStyleSheet** aTheChild=nsnull);
|
|
|
|
NS_IMETHOD AppendStyleSheet(nsICSSStyleSheet* aSheet);
|
|
NS_IMETHOD InsertStyleSheetAt(nsICSSStyleSheet* aSheet, PRInt32 aIndex);
|
|
|
|
|
|
// 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);
|
|
|
|
// Find attributes in selector for rule, for use with AttributeAffectsStyle
|
|
NS_IMETHOD CheckRuleForAttributes(nsICSSRule* aRule);
|
|
|
|
// XXX do these belong here or are they generic?
|
|
NS_IMETHOD PrependStyleRule(nsICSSRule* aRule);
|
|
NS_IMETHOD AppendStyleRule(nsICSSRule* aRule);
|
|
|
|
NS_IMETHOD StyleRuleCount(PRInt32& aCount) const;
|
|
NS_IMETHOD GetStyleRuleAt(PRInt32 aIndex, nsICSSRule*& aRule) const;
|
|
|
|
NS_IMETHOD StyleSheetCount(PRInt32& aCount) const;
|
|
NS_IMETHOD GetStyleSheetAt(PRInt32 aIndex, nsICSSStyleSheet*& aSheet) const;
|
|
|
|
NS_IMETHOD GetNameSpace(nsINameSpace*& aNameSpace) const;
|
|
NS_IMETHOD SetDefaultNameSpaceID(PRInt32 aDefaultNameSpaceID);
|
|
|
|
NS_IMETHOD Clone(nsICSSStyleSheet*& aClone) const;
|
|
|
|
NS_IMETHOD IsModified(PRBool* aSheetModified) const;
|
|
NS_IMETHOD SetModified(PRBool aModified);
|
|
|
|
nsresult EnsureUniqueInner(void);
|
|
|
|
virtual void List(FILE* out = stdout, PRInt32 aIndent = 0) const;
|
|
|
|
virtual void SizeOf(nsISizeOfHandler *aSizeofHandler, PRUint32 &aSize);
|
|
|
|
// nsIDOMStyleSheet interface
|
|
NS_DECL_NSIDOMSTYLESHEET
|
|
|
|
// nsIDOMCSSStyleSheet interface
|
|
NS_DECL_NSIDOMCSSSTYLESHEET
|
|
|
|
private:
|
|
// These are not supported and are not implemented!
|
|
CSSStyleSheetImpl(const CSSStyleSheetImpl& aCopy);
|
|
CSSStyleSheetImpl& operator=(const CSSStyleSheetImpl& aCopy);
|
|
|
|
protected:
|
|
virtual ~CSSStyleSheetImpl();
|
|
|
|
void ClearRuleCascades(void);
|
|
|
|
nsresult WillDirty(void);
|
|
void DidDirty(void);
|
|
|
|
protected:
|
|
PRUint32 mInHeap : 1;
|
|
PRUint32 mRefCnt : 31;
|
|
NS_DECL_OWNINGTHREAD // for thread-safety checking
|
|
|
|
nsString mTitle;
|
|
DOMMediaListImpl* mMedia;
|
|
CSSStyleSheetImpl* mFirstChild;
|
|
CSSStyleSheetImpl* mNext;
|
|
nsICSSStyleSheet* mParent;
|
|
|
|
CSSImportsCollectionImpl* mImportsCollection;
|
|
CSSRuleListImpl* mRuleCollection;
|
|
nsIDocument* mDocument;
|
|
nsIDOMNode* mOwningNode;
|
|
PRBool mDisabled;
|
|
PRBool mDirty; // has been modified
|
|
|
|
CSSStyleSheetInner* mInner;
|
|
|
|
nsVoidArray* mRuleProcessors;
|
|
|
|
friend class CSSRuleProcessor;
|
|
};
|
|
|
|
|
|
// -------------------------------
|
|
// Style Rule List for the DOM
|
|
//
|
|
class CSSRuleListImpl : public nsIDOMCSSRuleList
|
|
{
|
|
public:
|
|
CSSRuleListImpl(CSSStyleSheetImpl *aStyleSheet);
|
|
|
|
NS_DECL_ISUPPORTS
|
|
|
|
// nsIDOMCSSRuleList interface
|
|
NS_IMETHOD GetLength(PRUint32* aLength);
|
|
NS_IMETHOD Item(PRUint32 aIndex, nsIDOMCSSRule** aReturn);
|
|
|
|
void DropReference() { mStyleSheet = nsnull; }
|
|
|
|
protected:
|
|
virtual ~CSSRuleListImpl();
|
|
|
|
CSSStyleSheetImpl* mStyleSheet;
|
|
public:
|
|
PRBool mRulesAccessed;
|
|
};
|
|
|
|
CSSRuleListImpl::CSSRuleListImpl(CSSStyleSheetImpl *aStyleSheet)
|
|
{
|
|
NS_INIT_REFCNT();
|
|
// Not reference counted to avoid circular references.
|
|
// The style sheet will tell us when its going away.
|
|
mStyleSheet = aStyleSheet;
|
|
mRulesAccessed = PR_FALSE;
|
|
}
|
|
|
|
CSSRuleListImpl::~CSSRuleListImpl()
|
|
{
|
|
}
|
|
|
|
// XPConnect interface list for CSSStyleRuleImpl
|
|
NS_CLASSINFO_MAP_BEGIN(CSSRuleList)
|
|
NS_CLASSINFO_MAP_ENTRY(nsIDOMCSSRuleList)
|
|
NS_CLASSINFO_MAP_END
|
|
|
|
|
|
// QueryInterface implementation for CSSRuleList
|
|
NS_INTERFACE_MAP_BEGIN(CSSRuleListImpl)
|
|
NS_INTERFACE_MAP_ENTRY(nsIDOMCSSRuleList)
|
|
NS_INTERFACE_MAP_ENTRY(nsISupports)
|
|
NS_INTERFACE_MAP_ENTRY_CONTENT_CLASSINFO(CSSRuleList)
|
|
NS_INTERFACE_MAP_END
|
|
|
|
|
|
NS_IMPL_ADDREF(CSSRuleListImpl);
|
|
NS_IMPL_RELEASE(CSSRuleListImpl);
|
|
|
|
|
|
NS_IMETHODIMP
|
|
CSSRuleListImpl::GetLength(PRUint32* aLength)
|
|
{
|
|
if (nsnull != mStyleSheet) {
|
|
PRInt32 count;
|
|
mStyleSheet->StyleRuleCount(count);
|
|
*aLength = (PRUint32)count;
|
|
}
|
|
else {
|
|
*aLength = 0;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSRuleListImpl::Item(PRUint32 aIndex, nsIDOMCSSRule** aReturn)
|
|
{
|
|
nsresult result = NS_OK;
|
|
|
|
*aReturn = nsnull;
|
|
if (mStyleSheet) {
|
|
result = mStyleSheet->EnsureUniqueInner(); // needed to ensure rules have correct parent
|
|
if (NS_SUCCEEDED(result)) {
|
|
nsCOMPtr<nsICSSRule> rule;
|
|
|
|
result = mStyleSheet->GetStyleRuleAt(aIndex, *getter_AddRefs(rule));
|
|
if (rule) {
|
|
result = CallQueryInterface(rule, aReturn);
|
|
mRulesAccessed = PR_TRUE; // signal to never share rules again
|
|
} else if (result == NS_ERROR_ILLEGAL_VALUE) {
|
|
result = NS_OK; // per spec: "Return Value ... null if ... not a valid index."
|
|
}
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
class DOMMediaListImpl : public nsIDOMMediaList,
|
|
public nsISupportsArray
|
|
{
|
|
NS_DECL_ISUPPORTS
|
|
|
|
NS_DECL_NSIDOMMEDIALIST
|
|
|
|
NS_FORWARD_NSISUPPORTSARRAY(mArray->)
|
|
NS_FORWARD_NSICOLLECTION(mArray->);
|
|
|
|
NS_IMETHOD_(PRBool) operator==(const nsISupportsArray& other) {
|
|
return PR_FALSE;
|
|
}
|
|
|
|
NS_IMETHOD_(nsISupports*) operator[](PRUint32 aIndex) {
|
|
return mArray->ElementAt(aIndex);
|
|
}
|
|
|
|
DOMMediaListImpl(nsISupportsArray *aArray, CSSStyleSheetImpl *aStyleSheet);
|
|
virtual ~DOMMediaListImpl();
|
|
|
|
void DropReference() { mStyleSheet = nsnull; }
|
|
|
|
private:
|
|
nsCOMPtr<nsISupportsArray> mArray;
|
|
CSSStyleSheetImpl* mStyleSheet;
|
|
};
|
|
|
|
|
|
// XPConnect interface list for CSSStyleSheetStyleRuleImpl
|
|
NS_CLASSINFO_MAP_BEGIN(MediaList)
|
|
NS_CLASSINFO_MAP_ENTRY(nsIDOMMediaList)
|
|
NS_CLASSINFO_MAP_END
|
|
|
|
|
|
// QueryInterface implementation for CSSStyleRuleImpl
|
|
NS_INTERFACE_MAP_BEGIN(DOMMediaListImpl)
|
|
NS_INTERFACE_MAP_ENTRY(nsIDOMMediaList)
|
|
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMMediaList)
|
|
NS_INTERFACE_MAP_ENTRY_CONTENT_CLASSINFO(MediaList)
|
|
NS_INTERFACE_MAP_END
|
|
|
|
|
|
NS_IMPL_ADDREF(DOMMediaListImpl);
|
|
NS_IMPL_RELEASE(DOMMediaListImpl);
|
|
|
|
|
|
DOMMediaListImpl::DOMMediaListImpl(nsISupportsArray *aArray,
|
|
CSSStyleSheetImpl *aStyleSheet)
|
|
: mArray(aArray), mStyleSheet(aStyleSheet)
|
|
{
|
|
NS_INIT_REFCNT();
|
|
|
|
NS_ABORT_IF_FALSE(mArray, "This can't be used without an array!!");
|
|
}
|
|
|
|
DOMMediaListImpl::~DOMMediaListImpl()
|
|
{
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
DOMMediaListImpl::GetMediaText(nsAWritableString& aMediaText)
|
|
{
|
|
aMediaText.Truncate();
|
|
|
|
PRUint32 cnt;
|
|
nsresult rv = Count(&cnt);
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
PRInt32 count = cnt, index = 0;
|
|
|
|
while (index < count) {
|
|
nsCOMPtr<nsISupports> tmp(dont_AddRef(ElementAt(index++)));
|
|
NS_ENSURE_TRUE(tmp, NS_ERROR_FAILURE);
|
|
|
|
nsCOMPtr<nsIAtom> medium(do_QueryInterface(tmp));
|
|
NS_ENSURE_TRUE(medium, NS_ERROR_FAILURE);
|
|
|
|
const PRUnichar *buffer;
|
|
medium->GetUnicode(&buffer);
|
|
aMediaText.Append(buffer);
|
|
if (index < count) {
|
|
aMediaText.Append(NS_LITERAL_STRING(", "));
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
DOMMediaListImpl::SetMediaText(const nsAReadableString& aMediaText)
|
|
{
|
|
nsresult rv = Clear();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsAutoString buf(aMediaText);
|
|
PRInt32 n = buf.FindChar(',');
|
|
|
|
do {
|
|
if (n < 0)
|
|
n = buf.Length();
|
|
|
|
nsAutoString tmp;
|
|
|
|
buf.Left(tmp, n);
|
|
|
|
tmp.CompressWhitespace();
|
|
|
|
if (tmp.Length()) {
|
|
rv = Append(tmp);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
|
|
buf.Cut(0, n + 1);
|
|
|
|
n = buf.FindChar(',');
|
|
} while (buf.Length());
|
|
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
DOMMediaListImpl::GetLength(PRUint32* aLength)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aLength);
|
|
|
|
PRUint32 cnt;
|
|
|
|
nsresult rv = Count(&cnt);
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
*aLength = cnt;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
DOMMediaListImpl::Item(PRUint32 aIndex, nsAWritableString& aReturn)
|
|
{
|
|
nsCOMPtr<nsISupports> tmp(dont_AddRef(ElementAt(aIndex)));
|
|
|
|
if (tmp) {
|
|
nsCOMPtr<nsIAtom> medium(do_QueryInterface(tmp));
|
|
NS_ENSURE_TRUE(medium, NS_ERROR_FAILURE);
|
|
|
|
const PRUnichar *buffer;
|
|
medium->GetUnicode(&buffer);
|
|
aReturn.Assign(buffer);
|
|
} else {
|
|
aReturn.Truncate();
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
DOMMediaListImpl::Delete(const nsAReadableString& aOldMedium)
|
|
{
|
|
if (!aOldMedium.Length())
|
|
return NS_ERROR_DOM_NOT_FOUND_ERR;
|
|
|
|
nsCOMPtr<nsIAtom> old(dont_AddRef(NS_NewAtom(aOldMedium)));
|
|
NS_ENSURE_TRUE(old, NS_ERROR_OUT_OF_MEMORY);
|
|
|
|
PRInt32 indx = IndexOf(old);
|
|
|
|
if (indx < 0) {
|
|
return NS_ERROR_DOM_NOT_FOUND_ERR;
|
|
}
|
|
|
|
RemoveElementAt(indx);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
DOMMediaListImpl::Append(const nsAReadableString& aNewMedium)
|
|
{
|
|
if (!aNewMedium.Length())
|
|
return NS_ERROR_DOM_NOT_FOUND_ERR;
|
|
|
|
nsCOMPtr<nsIAtom> media(dont_AddRef(NS_NewAtom(aNewMedium)));
|
|
NS_ENSURE_TRUE(media, NS_ERROR_OUT_OF_MEMORY);
|
|
|
|
PRInt32 indx = IndexOf(media);
|
|
|
|
if (indx >= 0) {
|
|
RemoveElementAt(indx);
|
|
}
|
|
|
|
AppendElement(media);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
// -------------------------------
|
|
// Imports Collection for the DOM
|
|
//
|
|
class CSSImportsCollectionImpl : public nsIDOMStyleSheetList
|
|
{
|
|
public:
|
|
CSSImportsCollectionImpl(nsICSSStyleSheet *aStyleSheet);
|
|
|
|
NS_DECL_ISUPPORTS
|
|
|
|
// nsIDOMCSSStyleSheetList interface
|
|
NS_IMETHOD GetLength(PRUint32* aLength);
|
|
NS_IMETHOD Item(PRUint32 aIndex, nsIDOMStyleSheet** aReturn);
|
|
|
|
void DropReference() { mStyleSheet = nsnull; }
|
|
|
|
protected:
|
|
virtual ~CSSImportsCollectionImpl();
|
|
|
|
nsICSSStyleSheet* mStyleSheet;
|
|
};
|
|
|
|
CSSImportsCollectionImpl::CSSImportsCollectionImpl(nsICSSStyleSheet *aStyleSheet)
|
|
{
|
|
NS_INIT_REFCNT();
|
|
// Not reference counted to avoid circular references.
|
|
// The style sheet will tell us when its going away.
|
|
mStyleSheet = aStyleSheet;
|
|
}
|
|
|
|
CSSImportsCollectionImpl::~CSSImportsCollectionImpl()
|
|
{
|
|
}
|
|
|
|
|
|
// XPConnect interface list for CSSImportsCollectionImpl
|
|
NS_CLASSINFO_MAP_BEGIN(StyleSheetList)
|
|
NS_CLASSINFO_MAP_ENTRY(nsIDOMStyleSheetList)
|
|
NS_CLASSINFO_MAP_END
|
|
|
|
|
|
// QueryInterface implementation for CSSImportsCollectionImpl
|
|
NS_INTERFACE_MAP_BEGIN(CSSImportsCollectionImpl)
|
|
NS_INTERFACE_MAP_ENTRY(nsIDOMStyleSheetList)
|
|
NS_INTERFACE_MAP_ENTRY(nsISupports)
|
|
NS_INTERFACE_MAP_ENTRY_CONTENT_CLASSINFO(StyleSheetList)
|
|
NS_INTERFACE_MAP_END
|
|
|
|
|
|
NS_IMPL_ADDREF(CSSImportsCollectionImpl);
|
|
NS_IMPL_RELEASE(CSSImportsCollectionImpl);
|
|
|
|
|
|
NS_IMETHODIMP
|
|
CSSImportsCollectionImpl::GetLength(PRUint32* aLength)
|
|
{
|
|
if (nsnull != mStyleSheet) {
|
|
PRInt32 count;
|
|
mStyleSheet->StyleSheetCount(count);
|
|
*aLength = (PRUint32)count;
|
|
}
|
|
else {
|
|
*aLength = 0;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSImportsCollectionImpl::Item(PRUint32 aIndex, nsIDOMStyleSheet** aReturn)
|
|
{
|
|
nsresult result = NS_OK;
|
|
|
|
*aReturn = nsnull;
|
|
if (nsnull != mStyleSheet) {
|
|
nsICSSStyleSheet *sheet;
|
|
|
|
result = mStyleSheet->GetStyleSheetAt(aIndex, sheet);
|
|
if (NS_OK == result) {
|
|
result = sheet->QueryInterface(NS_GET_IID(nsIDOMStyleSheet), (void **)aReturn);
|
|
}
|
|
NS_RELEASE(sheet);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
// -------------------------------
|
|
// CSS Style Sheet Inner Data Container
|
|
//
|
|
|
|
|
|
static PRBool SetStyleSheetReference(nsISupports* aElement, void* aSheet)
|
|
{
|
|
nsICSSRule* rule = (nsICSSRule*)aElement;
|
|
|
|
if (nsnull != rule) {
|
|
rule->SetStyleSheet((nsICSSStyleSheet*)aSheet);
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
|
|
CSSStyleSheetInner::CSSStyleSheetInner(nsICSSStyleSheet* aParentSheet)
|
|
: mSheets(),
|
|
mURL(nsnull),
|
|
mOrderedRules(nsnull),
|
|
mNameSpace(nsnull),
|
|
mDefaultNameSpaceID(kNameSpaceID_None),
|
|
mRelevantAttributes()
|
|
{
|
|
MOZ_COUNT_CTOR(CSSStyleSheetInner);
|
|
mSheets.AppendElement(aParentSheet);
|
|
}
|
|
|
|
static PRBool
|
|
CloneRuleInto(nsISupports* aRule, void* aArray)
|
|
{
|
|
nsICSSRule* rule = (nsICSSRule*)aRule;
|
|
nsICSSRule* clone = nsnull;
|
|
rule->Clone(clone);
|
|
if (clone) {
|
|
nsISupportsArray* array = (nsISupportsArray*)aArray;
|
|
array->AppendElement(clone);
|
|
NS_RELEASE(clone);
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
|
|
static PRBool PR_CALLBACK
|
|
CopyRelevantAttributes(nsHashKey *aAttrKey, void *aAtom, void *aTable)
|
|
{
|
|
nsHashtable *table = NS_STATIC_CAST(nsHashtable *, aTable);
|
|
AtomKey *key = NS_STATIC_CAST(AtomKey *, aAttrKey);
|
|
table->Put(key, key->mAtom);
|
|
// we don't need to addref the atom here, because we're also copying the
|
|
// rules when we clone, and that will add a ref for us
|
|
return PR_TRUE;
|
|
}
|
|
|
|
CSSStyleSheetInner::CSSStyleSheetInner(CSSStyleSheetInner& aCopy,
|
|
nsICSSStyleSheet* aParentSheet)
|
|
: mSheets(),
|
|
mURL(aCopy.mURL),
|
|
mNameSpace(nsnull),
|
|
mDefaultNameSpaceID(aCopy.mDefaultNameSpaceID),
|
|
mRelevantAttributes()
|
|
{
|
|
MOZ_COUNT_CTOR(CSSStyleSheetInner);
|
|
mSheets.AppendElement(aParentSheet);
|
|
NS_IF_ADDREF(mURL);
|
|
if (aCopy.mOrderedRules) {
|
|
NS_NewISupportsArray(&mOrderedRules);
|
|
if (mOrderedRules) {
|
|
aCopy.mOrderedRules->EnumerateForwards(CloneRuleInto, mOrderedRules);
|
|
mOrderedRules->EnumerateForwards(SetStyleSheetReference, aParentSheet);
|
|
}
|
|
}
|
|
else {
|
|
mOrderedRules = nsnull;
|
|
}
|
|
aCopy.mRelevantAttributes.Enumerate(CopyRelevantAttributes,
|
|
&mRelevantAttributes);
|
|
RebuildNameSpaces();
|
|
}
|
|
|
|
CSSStyleSheetInner::~CSSStyleSheetInner(void)
|
|
{
|
|
MOZ_COUNT_DTOR(CSSStyleSheetInner);
|
|
NS_IF_RELEASE(mURL);
|
|
if (mOrderedRules) {
|
|
mOrderedRules->EnumerateForwards(SetStyleSheetReference, nsnull);
|
|
NS_RELEASE(mOrderedRules);
|
|
}
|
|
NS_IF_RELEASE(mNameSpace);
|
|
}
|
|
|
|
CSSStyleSheetInner*
|
|
CSSStyleSheetInner::CloneFor(nsICSSStyleSheet* aParentSheet)
|
|
{
|
|
return new CSSStyleSheetInner(*this, aParentSheet);
|
|
}
|
|
|
|
void
|
|
CSSStyleSheetInner::AddSheet(nsICSSStyleSheet* aParentSheet)
|
|
{
|
|
mSheets.AppendElement(aParentSheet);
|
|
}
|
|
|
|
void
|
|
CSSStyleSheetInner::RemoveSheet(nsICSSStyleSheet* aParentSheet)
|
|
{
|
|
if (1 == mSheets.Count()) {
|
|
NS_ASSERTION(aParentSheet == (nsICSSStyleSheet*)mSheets.ElementAt(0), "bad parent");
|
|
delete this;
|
|
return;
|
|
}
|
|
if (aParentSheet == (nsICSSStyleSheet*)mSheets.ElementAt(0)) {
|
|
mSheets.RemoveElementAt(0);
|
|
NS_ASSERTION(mSheets.Count(), "no parents");
|
|
if (mOrderedRules) {
|
|
mOrderedRules->EnumerateForwards(SetStyleSheetReference,
|
|
(nsICSSStyleSheet*)mSheets.ElementAt(0));
|
|
}
|
|
}
|
|
else {
|
|
mSheets.RemoveElement(aParentSheet);
|
|
}
|
|
}
|
|
|
|
static PRBool
|
|
CreateNameSpace(nsISupports* aRule, void* aNameSpacePtr)
|
|
{
|
|
nsICSSRule* rule = (nsICSSRule*)aRule;
|
|
PRInt32 type;
|
|
rule->GetType(type);
|
|
if (nsICSSRule::NAMESPACE_RULE == type) {
|
|
nsICSSNameSpaceRule* nameSpaceRule = (nsICSSNameSpaceRule*)rule;
|
|
nsINameSpace** nameSpacePtr = (nsINameSpace**)aNameSpacePtr;
|
|
nsINameSpace* lastNameSpace = *nameSpacePtr;
|
|
nsINameSpace* newNameSpace;
|
|
|
|
nsIAtom* prefix = nsnull;
|
|
nsAutoString urlSpec;
|
|
nameSpaceRule->GetPrefix(prefix);
|
|
nameSpaceRule->GetURLSpec(urlSpec);
|
|
lastNameSpace->CreateChildNameSpace(prefix, urlSpec, newNameSpace);
|
|
NS_IF_RELEASE(prefix);
|
|
if (newNameSpace) {
|
|
NS_RELEASE(lastNameSpace);
|
|
(*nameSpacePtr) = newNameSpace; // takes ref
|
|
}
|
|
|
|
return PR_TRUE;
|
|
}
|
|
// stop if not namespace, import or charset because namespace can't follow anything else
|
|
return (((nsICSSRule::CHARSET_RULE == type) ||
|
|
(nsICSSRule::IMPORT_RULE)) ? PR_TRUE : PR_FALSE);
|
|
}
|
|
|
|
void
|
|
CSSStyleSheetInner::RebuildNameSpaces(void)
|
|
{
|
|
nsINameSpaceManager* nameSpaceMgr;
|
|
if (mNameSpace) {
|
|
mNameSpace->GetNameSpaceManager(nameSpaceMgr);
|
|
NS_RELEASE(mNameSpace);
|
|
}
|
|
else {
|
|
NS_NewNameSpaceManager(&nameSpaceMgr);
|
|
}
|
|
if (nameSpaceMgr) {
|
|
nameSpaceMgr->CreateRootNameSpace(mNameSpace);
|
|
if (kNameSpaceID_Unknown != mDefaultNameSpaceID) {
|
|
nsINameSpace* defaultNameSpace;
|
|
mNameSpace->CreateChildNameSpace(nsnull, mDefaultNameSpaceID, defaultNameSpace);
|
|
if (defaultNameSpace) {
|
|
NS_RELEASE(mNameSpace);
|
|
mNameSpace = defaultNameSpace;
|
|
}
|
|
}
|
|
NS_RELEASE(nameSpaceMgr);
|
|
if (mOrderedRules) {
|
|
mOrderedRules->EnumerateForwards(CreateNameSpace, &mNameSpace);
|
|
}
|
|
}
|
|
}
|
|
|
|
/******************************************************************************
|
|
* SizeOf method:
|
|
*
|
|
* Self (reported as CSSStyleSheetInner's size):
|
|
* 1) sizeof(*this) + sizeof mSheets array (not contents though)
|
|
* + size of the mOrderedRules array (not the contents though)
|
|
*
|
|
* Contained / Aggregated data (not reported as CSSStyleSheetInner's size):
|
|
* 1) mSheets: each style sheet is sized seperately
|
|
* 2) mOrderedRules: each fule is sized seperately
|
|
*
|
|
* Children / siblings / parents:
|
|
* none
|
|
*
|
|
******************************************************************************/
|
|
void CSSStyleSheetInner::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;
|
|
PRBool rulesCounted=PR_FALSE;
|
|
|
|
// create a tag for this instance
|
|
nsCOMPtr<nsIAtom> tag;
|
|
tag = getter_AddRefs(NS_NewAtom("CSSStyleSheetInner"));
|
|
// get the size of an empty instance and add to the sizeof handler
|
|
aSize = sizeof(CSSStyleSheetInner);
|
|
|
|
// add in the size of the mSheets array itself
|
|
mSheets.SizeOf(aSizeOfHandler,&localSize);
|
|
aSize += localSize;
|
|
|
|
// and the mOrderedRules array (if there is one)
|
|
if(mOrderedRules && uniqueItems->AddItem(mOrderedRules)){
|
|
rulesCounted=PR_TRUE;
|
|
// no SizeOf method so we just get the basic object size
|
|
aSize += sizeof(*mOrderedRules);
|
|
}
|
|
aSizeOfHandler->AddSize(tag,aSize);
|
|
|
|
|
|
// delegate to the contained containers
|
|
// mSheets : nsVoidArray
|
|
{
|
|
PRUint32 sheetCount, sheetCur;
|
|
sheetCount = mSheets.Count();
|
|
for(sheetCur=0; sheetCur < sheetCount; sheetCur++){
|
|
nsICSSStyleSheet* sheet = (nsICSSStyleSheet*)mSheets.ElementAt(sheetCur);
|
|
if(sheet){
|
|
sheet->SizeOf(aSizeOfHandler, localSize);
|
|
}
|
|
}
|
|
}
|
|
// mOrderedRules : nsISupportsArray*
|
|
if(mOrderedRules && rulesCounted){
|
|
PRUint32 ruleCount, ruleCur;
|
|
mOrderedRules->Count(&ruleCount);
|
|
for(ruleCur=0; ruleCur < ruleCount; ruleCur++){
|
|
nsICSSRule* rule = (nsICSSRule*)mOrderedRules->ElementAt(ruleCur);
|
|
if(rule){
|
|
rule->SizeOf(aSizeOfHandler, localSize);
|
|
NS_IF_RELEASE(rule);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
// -------------------------------
|
|
// CSS Style Sheet
|
|
//
|
|
|
|
void* CSSStyleSheetImpl::operator new(size_t size)
|
|
{
|
|
CSSStyleSheetImpl* rv = (CSSStyleSheetImpl*) ::operator new(size);
|
|
#ifdef NS_DEBUG
|
|
if (nsnull != rv) {
|
|
nsCRT::memset(rv, 0xEE, size);
|
|
}
|
|
#endif
|
|
rv->mInHeap = 1;
|
|
return (void*) rv;
|
|
}
|
|
|
|
void* CSSStyleSheetImpl::operator new(size_t size, nsIArena* aArena)
|
|
{
|
|
CSSStyleSheetImpl* rv = (CSSStyleSheetImpl*) aArena->Alloc(PRInt32(size));
|
|
#ifdef NS_DEBUG
|
|
if (nsnull != rv) {
|
|
nsCRT::memset(rv, 0xEE, size);
|
|
}
|
|
#endif
|
|
rv->mInHeap = 0;
|
|
return (void*) rv;
|
|
}
|
|
|
|
void CSSStyleSheetImpl::operator delete(void* ptr)
|
|
{
|
|
CSSStyleSheetImpl* sheet = (CSSStyleSheetImpl*) ptr;
|
|
if (nsnull != sheet) {
|
|
if (sheet->mInHeap) {
|
|
::operator delete(ptr);
|
|
}
|
|
}
|
|
}
|
|
|
|
MOZ_DECL_CTOR_COUNTER(CSSStyleSheetImpl)
|
|
|
|
CSSStyleSheetImpl::CSSStyleSheetImpl()
|
|
: nsICSSStyleSheet(),
|
|
mTitle(),
|
|
mMedia(nsnull),
|
|
mFirstChild(nsnull),
|
|
mNext(nsnull),
|
|
mParent(nsnull),
|
|
mImportsCollection(nsnull),
|
|
mRuleCollection(nsnull),
|
|
mDocument(nsnull),
|
|
mOwningNode(nsnull),
|
|
mDisabled(PR_FALSE),
|
|
mDirty(PR_FALSE),
|
|
mRuleProcessors(nsnull)
|
|
{
|
|
NS_INIT_REFCNT();
|
|
|
|
mInner = new CSSStyleSheetInner(this);
|
|
}
|
|
|
|
CSSStyleSheetImpl::CSSStyleSheetImpl(const CSSStyleSheetImpl& aCopy)
|
|
: nsICSSStyleSheet(),
|
|
mTitle(aCopy.mTitle),
|
|
mMedia(nsnull),
|
|
mFirstChild(nsnull),
|
|
mNext(nsnull),
|
|
mParent(aCopy.mParent),
|
|
mImportsCollection(nsnull), // re-created lazily
|
|
mRuleCollection(nsnull), // re-created lazily
|
|
mDocument(aCopy.mDocument),
|
|
mOwningNode(aCopy.mOwningNode),
|
|
mDisabled(aCopy.mDisabled),
|
|
mDirty(PR_FALSE),
|
|
mInner(aCopy.mInner),
|
|
mRuleProcessors(nsnull)
|
|
{
|
|
NS_INIT_REFCNT();
|
|
|
|
mInner->AddSheet(this);
|
|
|
|
if (aCopy.mRuleCollection &&
|
|
aCopy.mRuleCollection->mRulesAccessed) { // CSSOM's been there, force full copy now
|
|
EnsureUniqueInner();
|
|
}
|
|
|
|
if (aCopy.mMedia) {
|
|
nsCOMPtr<nsISupportsArray> tmp;
|
|
(NS_STATIC_CAST(nsISupportsArray *, aCopy.mMedia))->Clone(getter_AddRefs(tmp));
|
|
mMedia = new DOMMediaListImpl(tmp, this);
|
|
NS_IF_ADDREF(mMedia);
|
|
}
|
|
|
|
if (aCopy.mFirstChild) {
|
|
CSSStyleSheetImpl* otherChild = aCopy.mFirstChild;
|
|
CSSStyleSheetImpl** ourSlot = &mFirstChild;
|
|
do {
|
|
CSSStyleSheetImpl* child = new CSSStyleSheetImpl(*otherChild);
|
|
if (child) {
|
|
NS_ADDREF(child);
|
|
(*ourSlot) = child;
|
|
ourSlot = &(child->mNext);
|
|
}
|
|
otherChild = otherChild->mNext;
|
|
}
|
|
while (otherChild && ourSlot);
|
|
}
|
|
}
|
|
|
|
CSSStyleSheetImpl::~CSSStyleSheetImpl()
|
|
{
|
|
if (mFirstChild) {
|
|
CSSStyleSheetImpl* child = mFirstChild;
|
|
do {
|
|
child->mParent = nsnull;
|
|
child = child->mNext;
|
|
} while (child);
|
|
NS_RELEASE(mFirstChild);
|
|
}
|
|
NS_IF_RELEASE(mNext);
|
|
if (nsnull != mRuleCollection) {
|
|
mRuleCollection->DropReference();
|
|
NS_RELEASE(mRuleCollection);
|
|
}
|
|
if (nsnull != mImportsCollection) {
|
|
mImportsCollection->DropReference();
|
|
NS_RELEASE(mImportsCollection);
|
|
}
|
|
if (mMedia) {
|
|
mMedia->DropReference();
|
|
NS_RELEASE(mMedia);
|
|
}
|
|
mInner->RemoveSheet(this);
|
|
// XXX The document reference is not reference counted and should
|
|
// not be released. The document will let us know when it is going
|
|
// away.
|
|
if (mRuleProcessors) {
|
|
NS_ASSERTION(mRuleProcessors->Count() == 0, "destucting sheet with rule processor reference");
|
|
delete mRuleProcessors; // weak refs, should be empty here anyway
|
|
}
|
|
}
|
|
|
|
|
|
// XPConnect interface list for CSSStyleSheetImpl
|
|
NS_CLASSINFO_MAP_BEGIN(CSSStyleSheet)
|
|
NS_CLASSINFO_MAP_ENTRY(nsIDOMCSSStyleSheet)
|
|
NS_CLASSINFO_MAP_END
|
|
|
|
|
|
// QueryInterface implementation for CSSStyleSheetImpl
|
|
NS_INTERFACE_MAP_BEGIN(CSSStyleSheetImpl)
|
|
NS_INTERFACE_MAP_ENTRY(nsICSSStyleSheet)
|
|
NS_INTERFACE_MAP_ENTRY(nsIStyleSheet)
|
|
NS_INTERFACE_MAP_ENTRY(nsIDOMStyleSheet)
|
|
NS_INTERFACE_MAP_ENTRY(nsIDOMCSSStyleSheet)
|
|
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsICSSStyleSheet)
|
|
NS_INTERFACE_MAP_ENTRY_CONTENT_CLASSINFO(CSSStyleSheet)
|
|
NS_INTERFACE_MAP_END
|
|
|
|
|
|
NS_IMPL_ADDREF(CSSStyleSheetImpl)
|
|
NS_IMPL_RELEASE(CSSStyleSheetImpl)
|
|
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::GetStyleRuleProcessor(nsIStyleRuleProcessor*& aProcessor,
|
|
nsIStyleRuleProcessor* aPrevProcessor)
|
|
{
|
|
nsresult result = NS_OK;
|
|
nsICSSStyleRuleProcessor* cssProcessor = nsnull;
|
|
|
|
if (aPrevProcessor) {
|
|
result = aPrevProcessor->QueryInterface(NS_GET_IID(nsICSSStyleRuleProcessor), (void**)&cssProcessor);
|
|
}
|
|
if (! cssProcessor) {
|
|
CSSRuleProcessor* processor = new CSSRuleProcessor();
|
|
if (processor) {
|
|
result = processor->QueryInterface(NS_GET_IID(nsICSSStyleRuleProcessor), (void**)&cssProcessor);
|
|
if (NS_FAILED(result)) {
|
|
delete processor;
|
|
cssProcessor = nsnull;
|
|
}
|
|
}
|
|
else {
|
|
result = NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
}
|
|
if (NS_SUCCEEDED(result) && cssProcessor) {
|
|
cssProcessor->AppendStyleSheet(this);
|
|
if (! mRuleProcessors) {
|
|
mRuleProcessors = new nsVoidArray();
|
|
}
|
|
if (mRuleProcessors) {
|
|
NS_ASSERTION(-1 == mRuleProcessors->IndexOf(cssProcessor), "processor already registered");
|
|
mRuleProcessors->AppendElement(cssProcessor); // weak ref
|
|
}
|
|
}
|
|
aProcessor = cssProcessor;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::DropRuleProcessorReference(nsICSSStyleRuleProcessor* aProcessor)
|
|
{
|
|
NS_ASSERTION(mRuleProcessors, "no rule processors registered");
|
|
if (mRuleProcessors) {
|
|
NS_ASSERTION(-1 != mRuleProcessors->IndexOf(aProcessor), "not a registered processor");
|
|
mRuleProcessors->RemoveElement(aProcessor);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::Init(nsIURI* aURL)
|
|
{
|
|
NS_PRECONDITION(aURL, "null ptr");
|
|
if (! aURL)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
if (! mInner) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
NS_ASSERTION(! mInner->mURL, "already initialized");
|
|
if (mInner->mURL)
|
|
return NS_ERROR_ALREADY_INITIALIZED;
|
|
|
|
if (mInner->mURL) {
|
|
#ifdef DEBUG
|
|
PRBool eq;
|
|
nsresult rv = mInner->mURL->Equals(aURL, &eq);
|
|
NS_ASSERTION(NS_SUCCEEDED(rv) && eq, "bad inner");
|
|
#endif
|
|
}
|
|
else {
|
|
mInner->mURL = aURL;
|
|
NS_ADDREF(mInner->mURL);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::GetURL(nsIURI*& aURL) const
|
|
{
|
|
const nsIURI* url = ((mInner) ? mInner->mURL : nsnull);
|
|
aURL = (nsIURI*)url;
|
|
NS_IF_ADDREF(aURL);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::SetTitle(const nsString& aTitle)
|
|
{
|
|
mTitle = aTitle;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::GetType(nsString& aType) const
|
|
{
|
|
aType.AssignWithConversion("text/css");
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::GetMediumCount(PRInt32& aCount) const
|
|
{
|
|
if (mMedia) {
|
|
PRUint32 cnt;
|
|
nsresult rv = mMedia->Count(&cnt);
|
|
if (NS_FAILED(rv)) return rv;
|
|
aCount = cnt;
|
|
}
|
|
else
|
|
aCount = 0;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::GetMediumAt(PRInt32 aIndex, nsIAtom*& aMedium) const
|
|
{
|
|
nsIAtom* medium = nsnull;
|
|
if (nsnull != mMedia) {
|
|
medium = (nsIAtom*)mMedia->ElementAt(aIndex);
|
|
}
|
|
if (nsnull != medium) {
|
|
aMedium = medium;
|
|
return NS_OK;
|
|
}
|
|
aMedium = nsnull;
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::UseForMedium(nsIAtom* aMedium) const
|
|
{
|
|
if (mMedia) {
|
|
if (-1 != mMedia->IndexOf(aMedium)) {
|
|
return NS_OK;
|
|
}
|
|
if (-1 != mMedia->IndexOf(nsLayoutAtoms::all)) {
|
|
return NS_OK;
|
|
}
|
|
return NS_COMFALSE;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::AppendMedium(nsIAtom* aMedium)
|
|
{
|
|
nsresult result = NS_OK;
|
|
if (!mMedia) {
|
|
nsCOMPtr<nsISupportsArray> tmp;
|
|
result = NS_NewISupportsArray(getter_AddRefs(tmp));
|
|
NS_ENSURE_SUCCESS(result, result);
|
|
|
|
mMedia = new DOMMediaListImpl(tmp, this);
|
|
NS_ENSURE_TRUE(mMedia, NS_ERROR_OUT_OF_MEMORY);
|
|
|
|
NS_ADDREF(mMedia);
|
|
}
|
|
|
|
if (mMedia) {
|
|
mMedia->AppendElement(aMedium);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::ClearMedia(void)
|
|
{
|
|
if (mMedia) {
|
|
mMedia->Clear();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::GetEnabled(PRBool& aEnabled) const
|
|
{
|
|
aEnabled = ((PR_TRUE == mDisabled) ? PR_FALSE : PR_TRUE);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::SetEnabled(PRBool aEnabled)
|
|
{
|
|
PRBool oldState = mDisabled;
|
|
mDisabled = ((PR_TRUE == aEnabled) ? PR_FALSE : PR_TRUE);
|
|
|
|
if ((nsnull != mDocument) && (mDisabled != oldState)) {
|
|
mDocument->SetStyleSheetDisabledState(this, mDisabled);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::GetParentSheet(nsIStyleSheet*& aParent) const
|
|
{
|
|
aParent = mParent;
|
|
NS_IF_ADDREF(aParent);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::GetOwningDocument(nsIDocument*& aDocument) const
|
|
{
|
|
nsIDocument* doc = mDocument;
|
|
CSSStyleSheetImpl* parent = (CSSStyleSheetImpl*)mParent;
|
|
while ((nsnull == doc) && (nsnull != parent)) {
|
|
doc = parent->mDocument;
|
|
parent = (CSSStyleSheetImpl*)(parent->mParent);
|
|
}
|
|
|
|
NS_IF_ADDREF(doc);
|
|
aDocument = doc;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::SetOwningDocument(nsIDocument* aDocument)
|
|
{ // not ref counted
|
|
mDocument = aDocument;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::SetOwningNode(nsIDOMNode* aOwningNode)
|
|
{ // not ref counted
|
|
mOwningNode = aOwningNode;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::ContainsStyleSheet(nsIURI* aURL, PRBool& aContains, nsIStyleSheet** aTheChild /*=nsnull*/)
|
|
{
|
|
NS_PRECONDITION(nsnull != aURL, "null arg");
|
|
|
|
// first check ourself out
|
|
nsresult rv = mInner->mURL->Equals(aURL, &aContains);
|
|
if (NS_FAILED(rv)) aContains = PR_FALSE;
|
|
|
|
if (aContains) {
|
|
// if we found it and the out-param is there, set it and addref
|
|
if (aTheChild) {
|
|
rv = QueryInterface( NS_GET_IID(nsIStyleSheet), (void **)aTheChild);
|
|
}
|
|
} else {
|
|
CSSStyleSheetImpl* child = mFirstChild;
|
|
// now check the chil'ins out (recursively)
|
|
while ((PR_FALSE == aContains) && (nsnull != child)) {
|
|
child->ContainsStyleSheet(aURL, aContains, aTheChild);
|
|
if (aContains) {
|
|
break;
|
|
} else {
|
|
child = child->mNext;
|
|
}
|
|
}
|
|
}
|
|
|
|
// NOTE: if there are errors in the above we are handling them locally
|
|
// and not promoting them to the caller
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::AppendStyleSheet(nsICSSStyleSheet* aSheet)
|
|
{
|
|
NS_PRECONDITION(nsnull != aSheet, "null arg");
|
|
|
|
if (NS_SUCCEEDED(WillDirty())) {
|
|
NS_ADDREF(aSheet);
|
|
CSSStyleSheetImpl* sheet = (CSSStyleSheetImpl*)aSheet;
|
|
|
|
if (! mFirstChild) {
|
|
mFirstChild = sheet;
|
|
}
|
|
else {
|
|
CSSStyleSheetImpl* child = mFirstChild;
|
|
while (child->mNext) {
|
|
child = child->mNext;
|
|
}
|
|
child->mNext = sheet;
|
|
}
|
|
|
|
// This is not reference counted. Our parent tells us when
|
|
// it's going away.
|
|
sheet->mParent = this;
|
|
DidDirty();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::InsertStyleSheetAt(nsICSSStyleSheet* aSheet, PRInt32 aIndex)
|
|
{
|
|
NS_PRECONDITION(nsnull != aSheet, "null arg");
|
|
|
|
nsresult result = WillDirty();
|
|
|
|
if (NS_SUCCEEDED(result)) {
|
|
NS_ADDREF(aSheet);
|
|
CSSStyleSheetImpl* sheet = (CSSStyleSheetImpl*)aSheet;
|
|
CSSStyleSheetImpl* child = mFirstChild;
|
|
|
|
if (aIndex && child) {
|
|
while ((0 < --aIndex) && child->mNext) {
|
|
child = child->mNext;
|
|
}
|
|
sheet->mNext = child->mNext;
|
|
child->mNext = sheet;
|
|
}
|
|
else {
|
|
sheet->mNext = mFirstChild;
|
|
mFirstChild = sheet;
|
|
}
|
|
|
|
// This is not reference counted. Our parent tells us when
|
|
// it's going away.
|
|
sheet->mParent = this;
|
|
DidDirty();
|
|
}
|
|
return result;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::AttributeAffectsStyle(nsIAtom *aAttribute,
|
|
nsIContent *aContent,
|
|
PRBool &aAffects)
|
|
{
|
|
DependentAtomKey key(aAttribute);
|
|
aAffects = !!mInner->mRelevantAttributes.Get(&key);
|
|
for (CSSStyleSheetImpl *child = mFirstChild;
|
|
child && !aAffects;
|
|
child = child->mNext) {
|
|
child->AttributeAffectsStyle(aAttribute, aContent, aAffects);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::PrependStyleRule(nsICSSRule* aRule)
|
|
{
|
|
NS_PRECONDITION(nsnull != aRule, "null arg");
|
|
|
|
if (NS_SUCCEEDED(WillDirty())) {
|
|
if (! mInner->mOrderedRules) {
|
|
NS_NewISupportsArray(&(mInner->mOrderedRules));
|
|
}
|
|
if (mInner->mOrderedRules) {
|
|
mInner->mOrderedRules->InsertElementAt(aRule, 0);
|
|
aRule->SetStyleSheet(this);
|
|
DidDirty();
|
|
|
|
PRInt32 type;
|
|
aRule->GetType(type);
|
|
if (nsICSSRule::NAMESPACE_RULE == type) {
|
|
// no api to prepend a namespace (ugh), release old ones and re-create them all
|
|
mInner->RebuildNameSpaces();
|
|
} else {
|
|
CheckRuleForAttributes(aRule);
|
|
}
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::AppendStyleRule(nsICSSRule* aRule)
|
|
{
|
|
NS_PRECONDITION(nsnull != aRule, "null arg");
|
|
|
|
if (NS_SUCCEEDED(WillDirty())) {
|
|
if (! mInner->mOrderedRules) {
|
|
NS_NewISupportsArray(&(mInner->mOrderedRules));
|
|
}
|
|
if (mInner->mOrderedRules) {
|
|
mInner->mOrderedRules->AppendElement(aRule);
|
|
aRule->SetStyleSheet(this);
|
|
DidDirty();
|
|
|
|
PRInt32 type;
|
|
aRule->GetType(type);
|
|
if (nsICSSRule::NAMESPACE_RULE == type) {
|
|
if (! mInner->mNameSpace) {
|
|
nsINameSpaceManager* nameSpaceMgr;
|
|
NS_NewNameSpaceManager(&nameSpaceMgr);
|
|
if (nameSpaceMgr) {
|
|
nameSpaceMgr->CreateRootNameSpace(mInner->mNameSpace);
|
|
NS_RELEASE(nameSpaceMgr);
|
|
}
|
|
}
|
|
|
|
if (mInner->mNameSpace) {
|
|
nsICSSNameSpaceRule* nameSpaceRule = (nsICSSNameSpaceRule*)aRule;
|
|
nsINameSpace* newNameSpace = nsnull;
|
|
|
|
nsIAtom* prefix = nsnull;
|
|
nsAutoString urlSpec;
|
|
nameSpaceRule->GetPrefix(prefix);
|
|
nameSpaceRule->GetURLSpec(urlSpec);
|
|
mInner->mNameSpace->CreateChildNameSpace(prefix, urlSpec, newNameSpace);
|
|
NS_IF_RELEASE(prefix);
|
|
if (newNameSpace) {
|
|
NS_RELEASE(mInner->mNameSpace);
|
|
mInner->mNameSpace = newNameSpace; // takes ref
|
|
}
|
|
}
|
|
} else {
|
|
CheckRuleForAttributes(aRule);
|
|
}
|
|
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
static PRBool
|
|
CheckRuleForAttributesEnum(nsISupports *aRule, void *aData)
|
|
{
|
|
nsICSSRule *rule = NS_STATIC_CAST(nsICSSRule *, aRule);
|
|
CSSStyleSheetImpl *sheet = NS_STATIC_CAST(CSSStyleSheetImpl *, aData);
|
|
return NS_SUCCEEDED(sheet->CheckRuleForAttributes(rule));
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::CheckRuleForAttributes(nsICSSRule *aRule)
|
|
{
|
|
PRInt32 ruleType;
|
|
aRule->GetType(ruleType);
|
|
switch (ruleType) {
|
|
case nsICSSRule::MEDIA_RULE: {
|
|
nsICSSMediaRule *mediaRule = (nsICSSMediaRule *)aRule;
|
|
return mediaRule->EnumerateRulesForwards(CheckRuleForAttributesEnum,
|
|
(void *)this);
|
|
}
|
|
case nsICSSRule::STYLE_RULE: {
|
|
nsICSSStyleRule *styleRule = NS_STATIC_CAST(nsICSSStyleRule *, aRule);
|
|
nsCSSSelector *iter;
|
|
for (iter = styleRule->FirstSelector(); iter; iter = iter->mNext) {
|
|
/* P.classname means we have to check the attribute "class" */
|
|
if (iter->mIDList) {
|
|
DependentAtomKey idKey(nsHTMLAtoms::id);
|
|
mInner->mRelevantAttributes.Put(&idKey, nsHTMLAtoms::id);
|
|
}
|
|
if (iter->mClassList) {
|
|
DependentAtomKey classKey(nsHTMLAtoms::kClass);
|
|
mInner->mRelevantAttributes.Put(&classKey, nsHTMLAtoms::kClass);
|
|
}
|
|
for (nsAttrSelector *sel = iter->mAttrList; sel; sel = sel->mNext) {
|
|
/* store it in this sheet's attributes-that-matter table */
|
|
/* XXX store tag name too, but handle collisions */
|
|
#ifdef DEBUG_shaver_off
|
|
nsAutoString str;
|
|
sel->mAttr->ToString(str);
|
|
char * chars = str.ToNewCString();
|
|
fprintf(stderr, "[%s@%p]", chars, this);
|
|
nsMemory::Free(chars);
|
|
#endif
|
|
DependentAtomKey key(sel->mAttr);
|
|
mInner->mRelevantAttributes.Put(&key, sel->mAttr);
|
|
}
|
|
}
|
|
} /* fall-through */
|
|
default:
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::StyleRuleCount(PRInt32& aCount) const
|
|
{
|
|
aCount = 0;
|
|
if (mInner && mInner->mOrderedRules) {
|
|
PRUint32 cnt;
|
|
nsresult rv = ((CSSStyleSheetImpl*)this)->mInner->mOrderedRules->Count(&cnt); // XXX bogus cast -- this method should not be const
|
|
aCount = (PRInt32)cnt;
|
|
return rv;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::GetStyleRuleAt(PRInt32 aIndex, nsICSSRule*& aRule) const
|
|
{
|
|
nsresult result = NS_ERROR_ILLEGAL_VALUE;
|
|
|
|
if (mInner && mInner->mOrderedRules) {
|
|
aRule = (nsICSSRule*)(mInner->mOrderedRules->ElementAt(aIndex));
|
|
if (nsnull != aRule) {
|
|
result = NS_OK;
|
|
}
|
|
}
|
|
else {
|
|
aRule = nsnull;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::GetNameSpace(nsINameSpace*& aNameSpace) const
|
|
{
|
|
aNameSpace = ((mInner) ? mInner->mNameSpace : nsnull);
|
|
NS_IF_ADDREF(aNameSpace);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::SetDefaultNameSpaceID(PRInt32 aDefaultNameSpaceID)
|
|
{
|
|
if (mInner) {
|
|
mInner->mDefaultNameSpaceID = aDefaultNameSpaceID;
|
|
mInner->RebuildNameSpaces();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::StyleSheetCount(PRInt32& aCount) const
|
|
{
|
|
// XXX Far from an ideal way to do this, but the hope is that
|
|
// it won't be done too often. If it is, we might want to
|
|
// consider storing the children in an array.
|
|
aCount = 0;
|
|
|
|
const CSSStyleSheetImpl* child = mFirstChild;
|
|
while (child) {
|
|
aCount++;
|
|
child = child->mNext;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::GetStyleSheetAt(PRInt32 aIndex, nsICSSStyleSheet*& aSheet) const
|
|
{
|
|
// XXX Ughh...an O(n^2) method for doing iteration. Again, we hope
|
|
// that this isn't done too often. If it is, we need to change the
|
|
// underlying storage mechanism
|
|
aSheet = nsnull;
|
|
|
|
if (mFirstChild) {
|
|
const CSSStyleSheetImpl* child = mFirstChild;
|
|
while ((child) && (0 != aIndex)) {
|
|
--aIndex;
|
|
child = child->mNext;
|
|
}
|
|
|
|
aSheet = (nsICSSStyleSheet*)child;
|
|
NS_IF_ADDREF(aSheet);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
CSSStyleSheetImpl::EnsureUniqueInner(void)
|
|
{
|
|
if (! mInner) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
if (1 < mInner->mSheets.Count()) {
|
|
CSSStyleSheetInner* clone = mInner->CloneFor(this);
|
|
if (clone) {
|
|
mInner->RemoveSheet(this);
|
|
mInner = clone;
|
|
}
|
|
else {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::Clone(nsICSSStyleSheet*& aClone) const
|
|
{
|
|
// XXX no, really need to clone
|
|
CSSStyleSheetImpl* clone = new CSSStyleSheetImpl(*this);
|
|
if (clone) {
|
|
aClone = (nsICSSStyleSheet*)clone;
|
|
NS_ADDREF(aClone);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
static void
|
|
ListRules(nsISupportsArray* aRules, FILE* aOut, PRInt32 aIndent)
|
|
{
|
|
PRUint32 count;
|
|
PRUint32 index;
|
|
if (aRules) {
|
|
aRules->Count(&count);
|
|
for (index = 0; index < count; index++) {
|
|
nsICSSRule* rule = (nsICSSRule*)aRules->ElementAt(index);
|
|
rule->List(aOut, aIndent);
|
|
NS_RELEASE(rule);
|
|
}
|
|
}
|
|
}
|
|
|
|
struct ListEnumData {
|
|
ListEnumData(FILE* aOut, PRInt32 aIndent)
|
|
: mOut(aOut),
|
|
mIndent(aIndent)
|
|
{
|
|
}
|
|
FILE* mOut;
|
|
PRInt32 mIndent;
|
|
};
|
|
|
|
#if 0
|
|
static PRBool ListCascade(nsHashKey* aKey, void* aValue, void* aClosure)
|
|
{
|
|
AtomKey* key = (AtomKey*)aKey;
|
|
RuleCascadeData* cascade = (RuleCascadeData*)aValue;
|
|
ListEnumData* data = (ListEnumData*)aClosure;
|
|
|
|
fputs("\nRules in cascade order for medium: \"", data->mOut);
|
|
nsAutoString buffer;
|
|
key->mAtom->ToString(buffer);
|
|
fputs(buffer, data->mOut);
|
|
fputs("\"\n", data->mOut);
|
|
|
|
ListRules(cascade->mWeightedRules, data->mOut, data->mIndent);
|
|
return PR_TRUE;
|
|
}
|
|
#endif
|
|
|
|
|
|
void CSSStyleSheetImpl::List(FILE* out, PRInt32 aIndent) const
|
|
{
|
|
|
|
PRInt32 index;
|
|
|
|
// Indent
|
|
for (index = aIndent; --index >= 0; ) fputs(" ", out);
|
|
|
|
if (! mInner) {
|
|
fputs("CSS Style Sheet - without inner data storage - ERROR\n", out);
|
|
return;
|
|
}
|
|
|
|
fputs("CSS Style Sheet: ", out);
|
|
char* urlSpec = nsnull;
|
|
nsresult rv = mInner->mURL->GetSpec(&urlSpec);
|
|
if (NS_SUCCEEDED(rv) && urlSpec) {
|
|
fputs(urlSpec, out);
|
|
nsCRT::free(urlSpec);
|
|
}
|
|
|
|
if (mMedia) {
|
|
fputs(" media: ", out);
|
|
index = 0;
|
|
PRUint32 count;
|
|
mMedia->Count(&count);
|
|
nsAutoString buffer;
|
|
while (index < PRInt32(count)) {
|
|
nsIAtom* medium = (nsIAtom*)mMedia->ElementAt(index++);
|
|
medium->ToString(buffer);
|
|
fputs(buffer, out);
|
|
if (index < PRInt32(count)) {
|
|
fputs(", ", out);
|
|
}
|
|
NS_RELEASE(medium);
|
|
}
|
|
}
|
|
fputs("\n", out);
|
|
|
|
const CSSStyleSheetImpl* child = mFirstChild;
|
|
while (nsnull != child) {
|
|
child->List(out, aIndent + 1);
|
|
child = child->mNext;
|
|
}
|
|
|
|
fputs("Rules in source order:\n", out);
|
|
ListRules(mInner->mOrderedRules, out, aIndent);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* SizeOf method:
|
|
*
|
|
* Self (reported as CSSStyleSheetImpl's size):
|
|
* 1) sizeof(*this) + sizeof the mImportsCollection + sizeof mCuleCollection)
|
|
*
|
|
* Contained / Aggregated data (not reported as CSSStyleSheetImpl's size):
|
|
* 1) mInner is delegated to be counted seperately
|
|
*
|
|
* Children / siblings / parents:
|
|
* 1) Recurse to mFirstChild
|
|
*
|
|
******************************************************************************/
|
|
void CSSStyleSheetImpl::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 already accounted for
|
|
return;
|
|
}
|
|
|
|
PRUint32 localSize=0;
|
|
|
|
// create a tag for this instance
|
|
nsCOMPtr<nsIAtom> tag;
|
|
tag = getter_AddRefs(NS_NewAtom("CSSStyleSheet"));
|
|
// get the size of an empty instance and add to the sizeof handler
|
|
aSize = sizeof(CSSStyleSheetImpl);
|
|
|
|
// add up the contained objects we won't delegate to:
|
|
// NOTE that we just add the sizeof the objects
|
|
// since the style data they contain is accounted for elsewhere
|
|
// - mImportsCollection
|
|
// - mRuleCollection
|
|
aSize += sizeof(mImportsCollection);
|
|
aSize += sizeof(mRuleCollection);
|
|
aSizeOfHandler->AddSize(tag,aSize);
|
|
|
|
// size the inner
|
|
if(mInner){
|
|
mInner->SizeOf(aSizeOfHandler, localSize);
|
|
}
|
|
|
|
// now travers the children (recursively, I'm sorry to say)
|
|
if(mFirstChild){
|
|
PRUint32 childSize=0;
|
|
mFirstChild->SizeOf(aSizeOfHandler, childSize);
|
|
}
|
|
}
|
|
|
|
static PRBool PR_CALLBACK
|
|
EnumClearRuleCascades(void* aProcessor, void* aData)
|
|
{
|
|
nsICSSStyleRuleProcessor* processor = (nsICSSStyleRuleProcessor*)aProcessor;
|
|
processor->ClearRuleCascades();
|
|
return PR_TRUE;
|
|
}
|
|
|
|
void
|
|
CSSStyleSheetImpl::ClearRuleCascades(void)
|
|
{
|
|
if (mRuleProcessors) {
|
|
mRuleProcessors->EnumerateForwards(EnumClearRuleCascades, nsnull);
|
|
}
|
|
if (mParent) {
|
|
CSSStyleSheetImpl* parent = (CSSStyleSheetImpl*)mParent;
|
|
parent->ClearRuleCascades();
|
|
}
|
|
}
|
|
|
|
nsresult
|
|
CSSStyleSheetImpl::WillDirty(void)
|
|
{
|
|
return EnsureUniqueInner();
|
|
}
|
|
|
|
void
|
|
CSSStyleSheetImpl::DidDirty(void)
|
|
{
|
|
ClearRuleCascades();
|
|
mDirty = PR_TRUE;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::IsModified(PRBool* aSheetModified) const
|
|
{
|
|
*aSheetModified = mDirty;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::SetModified(PRBool aModified)
|
|
{
|
|
mDirty = aModified;
|
|
return NS_OK;
|
|
}
|
|
|
|
// nsIDOMStyleSheet interface
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::GetType(nsAWritableString& aType)
|
|
{
|
|
aType.Assign(NS_LITERAL_STRING("text/css"));
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::GetDisabled(PRBool* aDisabled)
|
|
{
|
|
*aDisabled = mDisabled;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::SetDisabled(PRBool aDisabled)
|
|
{
|
|
PRBool oldState = mDisabled;
|
|
mDisabled = aDisabled;
|
|
|
|
if ((nsnull != mDocument) && (mDisabled != oldState)) {
|
|
mDocument->SetStyleSheetDisabledState(this, mDisabled);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::GetOwnerNode(nsIDOMNode** aOwnerNode)
|
|
{
|
|
*aOwnerNode = mOwningNode;
|
|
NS_IF_ADDREF(*aOwnerNode);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::GetParentStyleSheet(nsIDOMStyleSheet** aParentStyleSheet)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aParentStyleSheet);
|
|
|
|
nsresult rv = NS_OK;
|
|
|
|
if (mParent) {
|
|
rv = mParent->QueryInterface(NS_GET_IID(nsIDOMStyleSheet),
|
|
(void **)aParentStyleSheet);
|
|
} else {
|
|
*aParentStyleSheet = nsnull;
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::GetHref(nsAWritableString& aHref)
|
|
{
|
|
if (mInner && mInner->mURL) {
|
|
char* str = nsnull;
|
|
mInner->mURL->GetSpec(&str);
|
|
aHref.Assign(NS_ConvertASCIItoUCS2(str));
|
|
if (str) {
|
|
nsCRT::free(str);
|
|
}
|
|
}
|
|
else {
|
|
aHref.Truncate();
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::GetTitle(nsString& aTitle) const
|
|
{
|
|
aTitle = mTitle;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::GetTitle(nsAWritableString& aTitle)
|
|
{
|
|
aTitle.Assign(mTitle);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::GetMedia(nsIDOMMediaList** aMedia)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aMedia);
|
|
*aMedia = nsnull;
|
|
|
|
if (!mMedia) {
|
|
nsCOMPtr<nsISupportsArray> tmp;
|
|
NS_NewISupportsArray(getter_AddRefs(tmp));
|
|
NS_ENSURE_TRUE(tmp, NS_ERROR_NULL_POINTER);
|
|
|
|
mMedia = new DOMMediaListImpl(tmp, this);
|
|
NS_IF_ADDREF(mMedia);
|
|
}
|
|
|
|
*aMedia = mMedia;
|
|
NS_IF_ADDREF(*aMedia);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::GetOwnerRule(nsIDOMCSSRule** aOwnerRule)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aOwnerRule);
|
|
*aOwnerRule = nsnull;
|
|
|
|
// TBI: This should return the owner rule once the style system knows about
|
|
// owning rules...
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::GetCssRules(nsIDOMCSSRuleList** aCssRules)
|
|
{
|
|
if (nsnull == mRuleCollection) {
|
|
mRuleCollection = new CSSRuleListImpl(this);
|
|
if (nsnull == mRuleCollection) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
NS_ADDREF(mRuleCollection);
|
|
}
|
|
|
|
*aCssRules = mRuleCollection;
|
|
NS_ADDREF(mRuleCollection);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::InsertRule(const nsAReadableString& aRule,
|
|
PRUint32 aIndex,
|
|
PRUint32* aReturn)
|
|
{
|
|
nsICSSParser* css;
|
|
// XXX should get parser from CSS loader
|
|
nsresult result = NS_NewCSSParser(&css);
|
|
if (NS_OK == result) {
|
|
nsString* str = new nsString(aRule); // will be deleted by the input stream
|
|
nsIUnicharInputStream* input = nsnull;
|
|
result = NS_NewStringUnicharInputStream(&input, str);
|
|
if (NS_OK == result) {
|
|
nsICSSStyleSheet* tmp;
|
|
css->SetStyleSheet(this);
|
|
// XXX Currently, the parser will append the rule to the
|
|
// style sheet. We shouldn't ignore the index.
|
|
result = css->Parse(input, mInner->mURL, tmp);
|
|
NS_ASSERTION(tmp == this, "parser incorrectly created a new stylesheet");
|
|
NS_RELEASE(tmp);
|
|
NS_RELEASE(input);
|
|
PRUint32 cnt;
|
|
if (mInner && mInner->mOrderedRules) {
|
|
result = mInner->mOrderedRules->Count(&cnt);
|
|
if (NS_SUCCEEDED(result)) {
|
|
*aReturn = cnt;
|
|
if (nsnull != mDocument) {
|
|
nsICSSRule* rule;
|
|
|
|
rule = (nsICSSRule*)(mInner->mOrderedRules->ElementAt(aIndex));
|
|
mDocument->StyleRuleAdded(this, rule);
|
|
NS_IF_RELEASE(rule);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
NS_RELEASE(css);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleSheetImpl::DeleteRule(PRUint32 aIndex)
|
|
{
|
|
nsresult result = NS_ERROR_INVALID_ARG;
|
|
|
|
// XXX TBI: handle @rule types
|
|
if (mInner && mInner->mOrderedRules) {
|
|
result = WillDirty();
|
|
|
|
if (NS_SUCCEEDED(result)) {
|
|
nsICSSRule *rule;
|
|
|
|
rule = (nsICSSRule*)(mInner->mOrderedRules->ElementAt(aIndex));
|
|
if (nsnull != rule) {
|
|
mInner->mOrderedRules->RemoveElementAt(aIndex);
|
|
rule->SetStyleSheet(nsnull);
|
|
DidDirty();
|
|
NS_RELEASE(rule);
|
|
}
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
// XXX for backwards compatibility and convenience
|
|
NS_HTML nsresult
|
|
NS_NewCSSStyleSheet(nsICSSStyleSheet** aInstancePtrResult, nsIURI* aURL)
|
|
{
|
|
nsICSSStyleSheet* sheet;
|
|
nsresult rv;
|
|
if (NS_FAILED(rv = NS_NewCSSStyleSheet(&sheet)))
|
|
return rv;
|
|
|
|
if (NS_FAILED(rv = sheet->Init(aURL))) {
|
|
NS_RELEASE(sheet);
|
|
return rv;
|
|
}
|
|
|
|
*aInstancePtrResult = sheet;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_HTML nsresult
|
|
NS_NewCSSStyleSheet(nsICSSStyleSheet** aInstancePtrResult)
|
|
{
|
|
if (aInstancePtrResult == nsnull) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
|
|
CSSStyleSheetImpl *it = new CSSStyleSheetImpl();
|
|
|
|
if (nsnull == it) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
NS_ADDREF(it);
|
|
*aInstancePtrResult = it;
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
// -------------------------------
|
|
// CSS Style rule processor implementation
|
|
//
|
|
|
|
CSSRuleProcessor::CSSRuleProcessor(void)
|
|
: mSheets(nsnull),
|
|
mMediumCascadeTable(nsnull)
|
|
{
|
|
NS_INIT_REFCNT();
|
|
}
|
|
|
|
static PRBool
|
|
DropProcessorReference(nsISupports* aSheet, void* aProcessor)
|
|
{
|
|
nsICSSStyleSheet* sheet = (nsICSSStyleSheet*)aSheet;
|
|
nsICSSStyleRuleProcessor* processor = (nsICSSStyleRuleProcessor*)aProcessor;
|
|
sheet->DropRuleProcessorReference(processor);
|
|
return PR_TRUE;
|
|
}
|
|
|
|
CSSRuleProcessor::~CSSRuleProcessor(void)
|
|
{
|
|
if (mSheets) {
|
|
mSheets->EnumerateForwards(DropProcessorReference, this);
|
|
NS_RELEASE(mSheets);
|
|
}
|
|
ClearRuleCascades();
|
|
}
|
|
|
|
NS_IMPL_ADDREF(CSSRuleProcessor);
|
|
NS_IMPL_RELEASE(CSSRuleProcessor);
|
|
|
|
nsresult
|
|
CSSRuleProcessor::QueryInterface(REFNSIID aIID, void** aInstancePtrResult)
|
|
{
|
|
if (NULL == aInstancePtrResult) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
|
|
static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
|
|
if (aIID.Equals(NS_GET_IID(nsICSSStyleRuleProcessor))) {
|
|
*aInstancePtrResult = (void*)this;
|
|
NS_ADDREF_THIS();
|
|
return NS_OK;
|
|
}
|
|
if (aIID.Equals(NS_GET_IID(nsIStyleRuleProcessor))) {
|
|
*aInstancePtrResult = (void*)this;
|
|
NS_ADDREF_THIS();
|
|
return NS_OK;
|
|
}
|
|
if (aIID.Equals(kISupportsIID)) {
|
|
*aInstancePtrResult = (void*)this;
|
|
NS_ADDREF_THIS();
|
|
return NS_OK;
|
|
}
|
|
return NS_NOINTERFACE;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
CSSRuleProcessor::AppendStyleSheet(nsICSSStyleSheet* aStyleSheet)
|
|
{
|
|
nsresult result = NS_OK;
|
|
if (! mSheets) {
|
|
result = NS_NewISupportsArray(&mSheets);
|
|
}
|
|
if (mSheets) {
|
|
mSheets->AppendElement(aStyleSheet);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
MOZ_DECL_CTOR_COUNTER(SelectorMatchesData)
|
|
|
|
struct SelectorMatchesData {
|
|
SelectorMatchesData(nsIPresContext* aPresContext, nsIContent* aContent,
|
|
nsIRuleWalker* aRuleWalker, nsCompatibility* aCompat = nsnull);
|
|
|
|
virtual ~SelectorMatchesData()
|
|
{
|
|
MOZ_COUNT_DTOR(SelectorMatchesData);
|
|
|
|
if (mPreviousSiblingData)
|
|
mPreviousSiblingData->Destroy(mPresContext);
|
|
if (mParentData)
|
|
mParentData->Destroy(mPresContext);
|
|
|
|
NS_IF_RELEASE(mParentContent);
|
|
NS_IF_RELEASE(mContentTag);
|
|
NS_IF_RELEASE(mContentID);
|
|
NS_IF_RELEASE(mStyledContent);
|
|
}
|
|
|
|
void* operator new(size_t sz, nsIPresContext* aContext) {
|
|
void* result = nsnull;
|
|
aContext->AllocateFromShell(sz, &result);
|
|
return result;
|
|
}
|
|
void Destroy(nsIPresContext* aContext) {
|
|
this->~SelectorMatchesData();
|
|
aContext->FreeToShell(sizeof(SelectorMatchesData), this);
|
|
};
|
|
|
|
nsIPresContext* mPresContext;
|
|
nsIContent* mContent;
|
|
nsIContent* mParentContent; // if content, content->GetParent()
|
|
nsCOMPtr<nsIRuleWalker> mRuleWalker; // Used to add rules to our results.
|
|
nsCOMPtr<nsIStyleRuleSupplier> mStyleRuleSupplier; // used to query for the current scope
|
|
|
|
nsIAtom* mContentTag; // if content, then content->GetTag()
|
|
nsIAtom* mContentID; // if styled content, then styledcontent->GetID()
|
|
nsIStyledContent* mStyledContent; // if content, content->QI(nsIStyledContent)
|
|
PRBool mIsHTMLContent; // if content, then does QI on HTMLContent, true or false
|
|
PRBool mIsHTMLLink; // if content, calls nsStyleUtil::IsHTMLLink
|
|
PRBool mIsSimpleXLink; // if content, calls nsStyleUtil::IsSimpleXLink
|
|
nsLinkState mLinkState; // if a link, this is the state, otherwise unknown
|
|
PRBool mIsQuirkMode; // Possibly remove use of this in SelectorMatches?
|
|
PRInt32 mEventState; // if content, eventStateMgr->GetContentState()
|
|
PRBool mHasAttributes; // if content, content->GetAttributeCount() > 0
|
|
PRInt32 mNameSpaceID; // if content, content->GetNameSapce()
|
|
SelectorMatchesData* mPreviousSiblingData;
|
|
SelectorMatchesData* mParentData;
|
|
};
|
|
|
|
SelectorMatchesData::SelectorMatchesData(nsIPresContext* aPresContext, nsIContent* aContent,
|
|
nsIRuleWalker* aRuleWalker,
|
|
nsCompatibility* aCompat /*= nsnull*/)
|
|
{
|
|
MOZ_COUNT_CTOR(SelectorMatchesData);
|
|
|
|
mPresContext = aPresContext;
|
|
mContent = aContent;
|
|
mParentContent = nsnull;
|
|
mRuleWalker = aRuleWalker;
|
|
|
|
mContentTag = nsnull;
|
|
mContentID = nsnull;
|
|
mStyledContent = nsnull;
|
|
mIsHTMLContent = PR_FALSE;
|
|
mIsHTMLLink = PR_FALSE;
|
|
mIsSimpleXLink = PR_FALSE;
|
|
mLinkState = eLinkState_Unknown;
|
|
mEventState = NS_EVENT_STATE_UNSPECIFIED;
|
|
mNameSpaceID = kNameSpaceID_Unknown;
|
|
mPreviousSiblingData = nsnull;
|
|
mParentData = nsnull;
|
|
|
|
if(!aCompat) {
|
|
// get the compat. mode (unless it is provided)
|
|
nsCompatibility quirkMode = eCompatibility_Standard;
|
|
mPresContext->GetCompatibilityMode(&quirkMode);
|
|
mIsQuirkMode = eCompatibility_Standard == quirkMode ? PR_FALSE : PR_TRUE;
|
|
} else {
|
|
mIsQuirkMode = eCompatibility_Standard == *aCompat ? PR_FALSE : PR_TRUE;
|
|
}
|
|
|
|
|
|
if(aContent){
|
|
// we hold no ref to the content...
|
|
mContent = aContent;
|
|
|
|
// get the namespace
|
|
aContent->GetNameSpaceID(mNameSpaceID);
|
|
|
|
// get the tag and parent
|
|
aContent->GetTag(mContentTag);
|
|
aContent->GetParent(mParentContent);
|
|
|
|
// get the event state
|
|
nsIEventStateManager* eventStateManager = nsnull;
|
|
mPresContext->GetEventStateManager(&eventStateManager);
|
|
if(eventStateManager) {
|
|
eventStateManager->GetContentState(aContent, mEventState);
|
|
NS_RELEASE(eventStateManager);
|
|
}
|
|
|
|
// get the styledcontent interface and the ID
|
|
if (NS_SUCCEEDED(aContent->QueryInterface(NS_GET_IID(nsIStyledContent), (void**)&mStyledContent))) {
|
|
NS_ASSERTION(mStyledContent, "Succeeded but returned null");
|
|
mStyledContent->GetID(mContentID);
|
|
}
|
|
|
|
// see if there are attributes for the content
|
|
PRInt32 attrCount = 0;
|
|
aContent->GetAttributeCount(attrCount);
|
|
mHasAttributes = PRBool(attrCount > 0);
|
|
|
|
// check for HTMLContent and Link status
|
|
if (aContent->IsContentOfType(nsIContent::eHTML))
|
|
mIsHTMLContent = PR_TRUE;
|
|
|
|
// if HTML content and it has some attributes, check for an HTML link
|
|
// NOTE: optimization: cannot be a link if no attributes (since it needs an href)
|
|
if (PR_TRUE == mIsHTMLContent && mHasAttributes) {
|
|
// check if it is an HTML Link
|
|
if(nsStyleUtil::IsHTMLLink(aContent, mContentTag, mPresContext, &mLinkState)) {
|
|
mIsHTMLLink = PR_TRUE;
|
|
}
|
|
}
|
|
|
|
// if not an HTML link, check for a simple xlink (cannot be both HTML link and xlink)
|
|
// NOTE: optimization: cannot be an XLink if no attributes (since it needs an
|
|
if(PR_FALSE == mIsHTMLLink &&
|
|
mHasAttributes &&
|
|
!(aContent->IsContentOfType(nsIContent::eHTML) || aContent->IsContentOfType(nsIContent::eXUL)) &&
|
|
nsStyleUtil::IsSimpleXlink(aContent, mPresContext, &mLinkState)) {
|
|
mIsSimpleXLink = PR_TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
static const PRUnichar kNullCh = PRUnichar('\0');
|
|
|
|
static PRBool ValueIncludes(const nsString& aValueList, const nsString& aValue, PRBool aCaseSensitive)
|
|
{
|
|
nsAutoString valueList(aValueList);
|
|
|
|
valueList.Append(kNullCh); // put an extra null at the end
|
|
|
|
PRUnichar* value = (PRUnichar*)(const PRUnichar*)aValue.get();
|
|
PRUnichar* start = (PRUnichar*)(const PRUnichar*)valueList.get();
|
|
PRUnichar* end = start;
|
|
|
|
while (kNullCh != *start) {
|
|
while ((kNullCh != *start) && nsCRT::IsAsciiSpace(*start)) { // skip leading space
|
|
start++;
|
|
}
|
|
end = start;
|
|
|
|
while ((kNullCh != *end) && (PR_FALSE == nsCRT::IsAsciiSpace(*end))) { // look for space or end
|
|
end++;
|
|
}
|
|
*end = kNullCh; // end string here
|
|
|
|
if (start < end) {
|
|
if (aCaseSensitive) {
|
|
if (!nsCRT::strcmp(value, start)) {
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
else {
|
|
if (!nsCRT::strcasecmp(value, start)) {
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
start = ++end;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
static PRBool IsEventPseudo(nsIAtom* aAtom)
|
|
{
|
|
return PRBool ((nsCSSAtoms::activePseudo == aAtom) ||
|
|
(nsCSSAtoms::dragOverPseudo == aAtom) ||
|
|
// (nsCSSAtoms::dragPseudo == aAtom) || XXX not real yet
|
|
(nsCSSAtoms::focusPseudo == aAtom) ||
|
|
(nsCSSAtoms::hoverPseudo == aAtom));
|
|
// XXX selected, enabled, disabled, selection?
|
|
}
|
|
|
|
static PRBool IsLinkPseudo(nsIAtom* aAtom)
|
|
{
|
|
return PRBool ((nsCSSAtoms::linkPseudo == aAtom) ||
|
|
(nsCSSAtoms::visitedPseudo == aAtom) ||
|
|
(nsCSSAtoms::anyLinkPseudo == aAtom));
|
|
}
|
|
|
|
static PRBool PR_CALLBACK IsEventSensitive(nsIAtom *aPseudo, nsIAtom *aContentTag, PRBool aSelectorIsGlobal)
|
|
{
|
|
// if the selector is global, meaning it is not tied to a tag, then
|
|
// we restrict the application of the event pseudo to the following tags
|
|
if (aSelectorIsGlobal) {
|
|
return PRBool ((nsHTMLAtoms::a == aContentTag) ||
|
|
(nsHTMLAtoms::button == aContentTag) ||
|
|
(nsHTMLAtoms::img == aContentTag) ||
|
|
(nsHTMLAtoms::input == aContentTag) ||
|
|
(nsHTMLAtoms::li == aContentTag) ||
|
|
(nsHTMLAtoms::label == aContentTag) ||
|
|
(nsHTMLAtoms::select == aContentTag) ||
|
|
(nsHTMLAtoms::textarea == aContentTag) ||
|
|
(nsHTMLAtoms::textPseudo == aContentTag) ||
|
|
// We require a Layout Atom too
|
|
(nsLayoutAtoms::textTagName == aContentTag)
|
|
);
|
|
} else {
|
|
// selector is not global, so apply the event pseudo to everything except HTML and BODY
|
|
return PRBool ((nsHTMLAtoms::html != aContentTag) &&
|
|
(nsHTMLAtoms::body != aContentTag));
|
|
}
|
|
}
|
|
|
|
|
|
static PRBool IsSignificantChild(nsIContent* aChild, PRBool aAcceptNonWhitespaceText)
|
|
{
|
|
nsIAtom* tag;
|
|
aChild->GetTag(tag); // skip text & comments
|
|
if ((tag != nsLayoutAtoms::textTagName) &&
|
|
(tag != nsLayoutAtoms::commentTagName) &&
|
|
(tag != nsLayoutAtoms::processingInstructionTagName)) {
|
|
NS_IF_RELEASE(tag);
|
|
return PR_TRUE;
|
|
}
|
|
if (aAcceptNonWhitespaceText) {
|
|
if (tag == nsLayoutAtoms::textTagName) { // skip only whitespace text
|
|
nsITextContent* text = nsnull;
|
|
if (NS_SUCCEEDED(aChild->QueryInterface(NS_GET_IID(nsITextContent), (void**)&text))) {
|
|
PRBool isWhite;
|
|
text->IsOnlyWhitespace(&isWhite);
|
|
NS_RELEASE(text);
|
|
if (! isWhite) {
|
|
NS_RELEASE(tag);
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
NS_IF_RELEASE(tag);
|
|
return PR_FALSE;
|
|
}
|
|
|
|
|
|
static PRBool SelectorMatches(SelectorMatchesData &data,
|
|
nsCSSSelector* aSelector,
|
|
PRBool aTestState,
|
|
PRInt8 aNegationIndex)
|
|
|
|
{
|
|
// if we are dealing with negations, reverse the values of PR_TRUE and PR_FALSE
|
|
PRBool localFalse = PRBool(0 < aNegationIndex);
|
|
PRBool localTrue = PRBool(0 == aNegationIndex);
|
|
PRBool result = localTrue;
|
|
|
|
// Do not perform the test if aNegationIndex==1
|
|
// because it then contains only negated IDs, classes, attributes and pseudo-
|
|
// classes
|
|
if (1 != aNegationIndex) {
|
|
if (kNameSpaceID_Unknown != aSelector->mNameSpace) {
|
|
if (data.mNameSpaceID != aSelector->mNameSpace) {
|
|
result = localFalse;
|
|
}
|
|
}
|
|
if (localTrue == result) {
|
|
if ((nsnull != aSelector->mTag) && (aSelector->mTag != data.mContentTag)) {
|
|
result = localFalse;
|
|
}
|
|
}
|
|
// optimization : bail out early if we can
|
|
if (!result) {
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
|
|
result = PR_TRUE;
|
|
|
|
if (nsnull != aSelector->mPseudoClassList) { // test for pseudo class match
|
|
// first-child, root, lang, active, focus, hover, link, visited...
|
|
// XXX disabled, enabled, selected, selection
|
|
nsAtomList* pseudoClass = aSelector->mPseudoClassList;
|
|
|
|
while (result && (nsnull != pseudoClass)) {
|
|
if ((nsCSSAtoms::firstChildPseudo == pseudoClass->mAtom) ||
|
|
(nsCSSAtoms::firstNodePseudo == pseudoClass->mAtom) ) {
|
|
nsIContent* firstChild = nsnull;
|
|
nsIContent* parent = data.mParentContent;
|
|
if (parent) {
|
|
PRInt32 index = -1;
|
|
do {
|
|
parent->ChildAt(++index, firstChild);
|
|
if (firstChild) { // stop at first non-comment and non-whitespace node (and non-text node for firstChild)
|
|
if (IsSignificantChild(firstChild, (nsCSSAtoms::firstNodePseudo == pseudoClass->mAtom))) {
|
|
break;
|
|
}
|
|
NS_RELEASE(firstChild);
|
|
}
|
|
else {
|
|
break;
|
|
}
|
|
} while (1 == 1);
|
|
}
|
|
result = PRBool(localTrue == (data.mContent == firstChild));
|
|
NS_IF_RELEASE(firstChild);
|
|
}
|
|
else if ((nsCSSAtoms::lastChildPseudo == pseudoClass->mAtom) ||
|
|
(nsCSSAtoms::lastNodePseudo == pseudoClass->mAtom)) {
|
|
nsIContent* lastChild = nsnull;
|
|
nsIContent* parent = data.mParentContent;
|
|
if (parent) {
|
|
PRInt32 index;
|
|
parent->ChildCount(index);
|
|
do {
|
|
parent->ChildAt(--index, lastChild);
|
|
if (lastChild) { // stop at first non-comment and non-whitespace node (and non-text node for lastChild)
|
|
if (IsSignificantChild(lastChild, (nsCSSAtoms::lastNodePseudo == pseudoClass->mAtom))) {
|
|
break;
|
|
}
|
|
NS_RELEASE(lastChild);
|
|
}
|
|
else {
|
|
break;
|
|
}
|
|
} while (1 == 1);
|
|
}
|
|
result = PRBool(localTrue == (data.mContent == lastChild));
|
|
NS_IF_RELEASE(lastChild);
|
|
}
|
|
else if (nsCSSAtoms::emptyPseudo == pseudoClass->mAtom) {
|
|
nsIContent* child = nsnull;
|
|
nsIContent* element = data.mContent;
|
|
PRInt32 index = -1;
|
|
do {
|
|
element->ChildAt(++index, child);
|
|
if (child) { // stop at first non-comment and non-whitespace node
|
|
if (IsSignificantChild(child, PR_TRUE)) {
|
|
break;
|
|
}
|
|
NS_RELEASE(child);
|
|
}
|
|
else {
|
|
break;
|
|
}
|
|
} while (1 == 1);
|
|
result = PRBool(localTrue == (child == nsnull));
|
|
NS_IF_RELEASE(child);
|
|
}
|
|
else if (nsCSSAtoms::rootPseudo == pseudoClass->mAtom) {
|
|
if (data.mParentContent) {
|
|
result = localFalse;
|
|
}
|
|
else {
|
|
result = localTrue;
|
|
}
|
|
}
|
|
else if (nsCSSAtoms::xblBoundElementPseudo == pseudoClass->mAtom) {
|
|
if (!data.mStyleRuleSupplier) {
|
|
nsCOMPtr<nsIPresShell> shell;
|
|
data.mPresContext->GetShell(getter_AddRefs(shell));
|
|
nsCOMPtr<nsIStyleSet> styleSet;
|
|
shell->GetStyleSet(getter_AddRefs(styleSet));
|
|
styleSet->GetStyleRuleSupplier(getter_AddRefs(data.mStyleRuleSupplier));
|
|
}
|
|
|
|
if (data.mStyleRuleSupplier)
|
|
data.mStyleRuleSupplier->MatchesScopedRoot(data.mContent, &result);
|
|
else
|
|
result = localFalse;
|
|
}
|
|
else if (nsCSSAtoms::langPseudo == pseudoClass->mAtom) {
|
|
// XXX not yet implemented
|
|
result = PR_FALSE;
|
|
}
|
|
else if (IsEventPseudo(pseudoClass->mAtom)) {
|
|
// check if the element is event-sensitive
|
|
// NOTE: we distinguish between global and subjected selectors so
|
|
// pass that information on to the determining routine
|
|
// ALSO NOTE: we used to do this only in Quirks mode, but because of
|
|
// performance problems we do it all the time now (bug 68821)
|
|
// When style resolution due to state changes is optimized this
|
|
// should go back to QuirksMode only behavour (see also bug 75559)
|
|
PRBool isSelectorGlobal = aSelector->mTag==nsnull ? PR_TRUE : PR_FALSE;
|
|
if ((data.mIsHTMLContent) &&
|
|
(!IsEventSensitive(pseudoClass->mAtom, data.mContentTag, isSelectorGlobal))){
|
|
result = localFalse;
|
|
} else if (aTestState) {
|
|
if (nsCSSAtoms::activePseudo == pseudoClass->mAtom) {
|
|
result = PRBool(localTrue == (0 != (data.mEventState & NS_EVENT_STATE_ACTIVE)));
|
|
}
|
|
else if (nsCSSAtoms::focusPseudo == pseudoClass->mAtom) {
|
|
result = PRBool(localTrue == (0 != (data.mEventState & NS_EVENT_STATE_FOCUS)));
|
|
}
|
|
else if (nsCSSAtoms::hoverPseudo == pseudoClass->mAtom) {
|
|
result = PRBool(localTrue == (0 != (data.mEventState & NS_EVENT_STATE_HOVER)));
|
|
}
|
|
else if (nsCSSAtoms::dragOverPseudo == pseudoClass->mAtom) {
|
|
result = PRBool(localTrue == (0 != (data.mEventState & NS_EVENT_STATE_DRAGOVER)));
|
|
}
|
|
}
|
|
}
|
|
else if (IsLinkPseudo(pseudoClass->mAtom)) {
|
|
if (data.mIsHTMLLink || data.mIsSimpleXLink) {
|
|
if (result && aTestState) {
|
|
if (nsCSSAtoms::anyLinkPseudo == pseudoClass->mAtom) {
|
|
result = localTrue;
|
|
}
|
|
else if (nsCSSAtoms::linkPseudo == pseudoClass->mAtom) {
|
|
result = PRBool(localTrue == (eLinkState_Unvisited == data.mLinkState));
|
|
}
|
|
else if (nsCSSAtoms::visitedPseudo == pseudoClass->mAtom) {
|
|
result = PRBool(localTrue == (eLinkState_Visited == data.mLinkState));
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
result = localFalse; // not a link
|
|
}
|
|
}
|
|
else {
|
|
result = localFalse; // unknown pseudo class
|
|
}
|
|
pseudoClass = pseudoClass->mNext;
|
|
}
|
|
}
|
|
|
|
// namespace/tag match
|
|
if (result && aSelector->mAttrList) { // test for attribute match
|
|
// if no attributes on the content, no match
|
|
if(!data.mHasAttributes) {
|
|
result = localFalse;
|
|
} else {
|
|
result = localTrue;
|
|
nsAttrSelector* attr = aSelector->mAttrList;
|
|
nsAutoString value;
|
|
do {
|
|
nsresult attrState = data.mContent->GetAttribute(attr->mNameSpace, attr->mAttr, value);
|
|
if (NS_FAILED(attrState) || (NS_CONTENT_ATTR_NOT_THERE == attrState)) {
|
|
result = localFalse;
|
|
}
|
|
else {
|
|
PRBool isCaseSensitive = attr->mCaseSensitive;
|
|
switch (attr->mFunction) {
|
|
case NS_ATTR_FUNC_SET: break;
|
|
case NS_ATTR_FUNC_EQUALS:
|
|
if (isCaseSensitive) {
|
|
result = PRBool(localTrue == value.Equals(attr->mValue));
|
|
}
|
|
else {
|
|
result = PRBool(localTrue == value.EqualsIgnoreCase(attr->mValue));
|
|
}
|
|
break;
|
|
case NS_ATTR_FUNC_INCLUDES:
|
|
result = PRBool(localTrue == ValueIncludes(value, attr->mValue, isCaseSensitive));
|
|
break;
|
|
case NS_ATTR_FUNC_DASHMATCH:
|
|
{
|
|
PRUint32 selLen = attr->mValue.Length();
|
|
PRUint32 valLen = value.Length();
|
|
if (selLen > valLen) {
|
|
result = localFalse;
|
|
} else {
|
|
if (selLen != valLen &&
|
|
value.CharAt(selLen) != PRUnichar('-')) {
|
|
// to match, the value must have a dash after the end of
|
|
// the selector's text (unless the selector and the value
|
|
// have the same text)
|
|
result = localFalse;
|
|
break;
|
|
}
|
|
if (isCaseSensitive)
|
|
result = PRBool(localTrue == !Compare(Substring(value, 0, selLen), attr->mValue, nsDefaultStringComparator()));
|
|
else
|
|
result = PRBool(localTrue == !Compare(Substring(value, 0, selLen), attr->mValue, nsCaseInsensitiveStringComparator()));
|
|
}
|
|
}
|
|
break;
|
|
case NS_ATTR_FUNC_ENDSMATCH:
|
|
{
|
|
PRUint32 selLen = attr->mValue.Length();
|
|
PRUint32 valLen = value.Length();
|
|
if (selLen > valLen) {
|
|
result = localFalse;
|
|
} else {
|
|
if (isCaseSensitive)
|
|
result = PRBool(localTrue == !Compare(Substring(value, valLen - selLen, selLen), attr->mValue, nsDefaultStringComparator()));
|
|
else
|
|
result = PRBool(localTrue == !Compare(Substring(value, valLen - selLen, selLen), attr->mValue, nsCaseInsensitiveStringComparator()));
|
|
}
|
|
}
|
|
break;
|
|
case NS_ATTR_FUNC_BEGINSMATCH:
|
|
{
|
|
PRUint32 selLen = attr->mValue.Length();
|
|
PRUint32 valLen = value.Length();
|
|
if (selLen > valLen) {
|
|
result = localFalse;
|
|
} else {
|
|
if (isCaseSensitive)
|
|
result = PRBool(localTrue == !Compare(Substring(value, 0, selLen), attr->mValue, nsDefaultStringComparator()));
|
|
else
|
|
result = PRBool(localTrue == !Compare(Substring(value, 0, selLen), attr->mValue, nsCaseInsensitiveStringComparator()));
|
|
}
|
|
}
|
|
break;
|
|
case NS_ATTR_FUNC_CONTAINSMATCH:
|
|
result = PRBool(localTrue == (-1 != value.Find(attr->mValue, isCaseSensitive)));
|
|
break;
|
|
}
|
|
}
|
|
attr = attr->mNext;
|
|
} while (result && (nsnull != attr));
|
|
}
|
|
}
|
|
if (result &&
|
|
((nsnull != aSelector->mIDList) || (nsnull != aSelector->mClassList))) { // test for ID & class match
|
|
result = localFalse;
|
|
if (data.mStyledContent) {
|
|
nsAtomList* IDList = aSelector->mIDList;
|
|
if (nsnull == IDList) {
|
|
result = PR_TRUE;
|
|
}
|
|
else if (nsnull != data.mContentID) {
|
|
result = PR_TRUE;
|
|
while (nsnull != IDList) {
|
|
if (localTrue == (IDList->mAtom != data.mContentID)) {
|
|
result = PR_FALSE;
|
|
break;
|
|
}
|
|
IDList = IDList->mNext;
|
|
}
|
|
}
|
|
|
|
if (result) {
|
|
nsAtomList* classList = aSelector->mClassList;
|
|
while (nsnull != classList) {
|
|
if (localTrue == (NS_COMFALSE == data.mStyledContent->HasClass(classList->mAtom))) {
|
|
result = PR_FALSE;
|
|
break;
|
|
}
|
|
classList = classList->mNext;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// apply SelectorMatches to the negated selectors in the chain
|
|
if (result && (nsnull != aSelector->mNegations)) {
|
|
result = SelectorMatches(data, aSelector->mNegations, aTestState, aNegationIndex+1);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
struct ContentEnumData : public SelectorMatchesData {
|
|
ContentEnumData(nsIPresContext* aPresContext, nsIContent* aContent,
|
|
nsIRuleWalker* aRuleWalker)
|
|
: SelectorMatchesData(aPresContext,aContent,aRuleWalker)
|
|
{}
|
|
};
|
|
|
|
static PRBool SelectorMatchesTree(SelectorMatchesData &data,
|
|
nsCSSSelector* aSelector)
|
|
{
|
|
nsCSSSelector* selector = aSelector;
|
|
|
|
if (selector) {
|
|
nsIContent* content = nsnull;
|
|
nsIContent* lastContent = data.mContent;
|
|
NS_ADDREF(lastContent);
|
|
SelectorMatchesData* curdata = &data;
|
|
while (nsnull != selector) { // check compound selectors
|
|
// Find the appropriate content (whether parent or previous sibling)
|
|
// to check next, and if we don't already have a SelectorMatchesData
|
|
// for it, create one.
|
|
|
|
// for adjacent sibling combinators, the content to test against the
|
|
// selector is the previous sibling
|
|
nsCompatibility compat = curdata->mIsQuirkMode ? eCompatibility_NavQuirks : eCompatibility_Standard;
|
|
SelectorMatchesData* newdata;
|
|
if (PRUnichar('+') == selector->mOperator) {
|
|
newdata = curdata->mPreviousSiblingData;
|
|
if (!newdata) {
|
|
nsIContent* parent;
|
|
PRInt32 index;
|
|
lastContent->GetParent(parent);
|
|
if (parent) {
|
|
parent->IndexOf(lastContent, index);
|
|
while (0 <= --index) { // skip text & comment nodes
|
|
parent->ChildAt(index, content);
|
|
nsIAtom* tag;
|
|
content->GetTag(tag);
|
|
if ((tag != nsLayoutAtoms::textTagName) &&
|
|
(tag != nsLayoutAtoms::commentTagName)) {
|
|
NS_IF_RELEASE(tag);
|
|
newdata =
|
|
new (curdata->mPresContext) SelectorMatchesData(curdata->mPresContext, content,
|
|
curdata->mRuleWalker, &compat);
|
|
curdata->mPreviousSiblingData = newdata;
|
|
break;
|
|
}
|
|
NS_RELEASE(content);
|
|
NS_IF_RELEASE(tag);
|
|
}
|
|
NS_RELEASE(parent);
|
|
}
|
|
} else {
|
|
content = newdata->mContent;
|
|
NS_ADDREF(content);
|
|
}
|
|
}
|
|
// for descendant combinators and child combinators, the content
|
|
// to test against is the parent
|
|
else {
|
|
newdata = curdata->mParentData;
|
|
if (!newdata) {
|
|
lastContent->GetParent(content);
|
|
if (content) {
|
|
newdata = new (curdata->mPresContext) SelectorMatchesData(curdata->mPresContext, content,
|
|
curdata->mRuleWalker, &compat);
|
|
curdata->mParentData = newdata;
|
|
}
|
|
} else {
|
|
content = newdata->mContent;
|
|
NS_ADDREF(content);
|
|
}
|
|
}
|
|
if (! newdata) {
|
|
NS_ASSERTION(!content, "content must be null");
|
|
break;
|
|
}
|
|
if (SelectorMatches(*newdata, selector, PR_TRUE, 0)) {
|
|
// to avoid greedy matching, we need to recurse if this is a
|
|
// descendant combinator and the next combinator is not
|
|
if ((NS_IS_GREEDY_OPERATOR(selector->mOperator)) &&
|
|
(selector->mNext) &&
|
|
(!NS_IS_GREEDY_OPERATOR(selector->mNext->mOperator))) {
|
|
|
|
// pretend the selector didn't match, and step through content
|
|
// while testing the same selector
|
|
|
|
// This approach is slightly strange is that when it recurses
|
|
// it tests from the top of the content tree, down. This
|
|
// doesn't matter much for performance since most selectors
|
|
// don't match. (If most did, it might be faster...)
|
|
if (SelectorMatchesTree(*newdata, selector)) {
|
|
selector = nsnull; // indicate success
|
|
break;
|
|
}
|
|
}
|
|
selector = selector->mNext;
|
|
}
|
|
else {
|
|
// for adjacent sibling and child combinators, if we didn't find
|
|
// a match, we're done
|
|
if (!NS_IS_GREEDY_OPERATOR(selector->mOperator)) {
|
|
NS_RELEASE(content);
|
|
break; // parent was required to match
|
|
}
|
|
}
|
|
NS_IF_RELEASE(lastContent);
|
|
lastContent = content; // take refcount
|
|
content = nsnull;
|
|
curdata = newdata;
|
|
}
|
|
NS_IF_RELEASE(lastContent);
|
|
}
|
|
return PRBool(nsnull == selector); // matches if ran out of selectors
|
|
}
|
|
|
|
static void ContentEnumFunc(nsICSSStyleRule* aRule, void* aData)
|
|
{
|
|
ContentEnumData* data = (ContentEnumData*)aData;
|
|
|
|
nsCSSSelector* selector = aRule->FirstSelector();
|
|
if (SelectorMatches(*data, selector, PR_TRUE, 0)) {
|
|
selector = selector->mNext;
|
|
if (SelectorMatchesTree(*data, selector)) {
|
|
nsIStyleRule* iRule;
|
|
if (NS_OK == aRule->QueryInterface(NS_GET_IID(nsIStyleRule), (void**)&iRule)) {
|
|
data->mRuleWalker->Forward(iRule);
|
|
NS_RELEASE(iRule);
|
|
/*
|
|
iRule = aRule->GetImportantRule();
|
|
if (nsnull != iRule) {
|
|
data->mRuleWalker->Forward(iRule); // XXXdwh Deal with !important rules!
|
|
NS_RELEASE(iRule);
|
|
}*/
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifdef DEBUG_RULES
|
|
static PRBool ContentEnumWrap(nsISupports* aRule, void* aData)
|
|
{
|
|
ContentEnumFunc((nsICSSStyleRule*)aRule, aData);
|
|
return PR_TRUE;
|
|
}
|
|
#endif
|
|
|
|
NS_IMETHODIMP
|
|
CSSRuleProcessor::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");
|
|
|
|
RuleCascadeData* cascade = GetRuleCascade(aMedium);
|
|
|
|
if (cascade) {
|
|
nsIAtom* idAtom = nsnull;
|
|
nsAutoVoidArray classArray;
|
|
|
|
// setup the ContentEnumData
|
|
ContentEnumData data(aPresContext, aContent, aRuleWalker);
|
|
|
|
nsIStyledContent* styledContent;
|
|
if (NS_SUCCEEDED(aContent->QueryInterface(NS_GET_IID(nsIStyledContent), (void**)&styledContent))) {
|
|
styledContent->GetID(idAtom);
|
|
styledContent->GetClasses(classArray);
|
|
NS_RELEASE(styledContent);
|
|
}
|
|
|
|
cascade->mRuleHash.EnumerateAllRules(data.mNameSpaceID, data.mContentTag, idAtom, classArray, ContentEnumFunc, &data);
|
|
|
|
#ifdef DEBUG_RULES
|
|
nsISupportsArray* list1;
|
|
nsISupportsArray* list2;
|
|
NS_NewISupportsArray(&list1);
|
|
NS_NewISupportsArray(&list2);
|
|
|
|
data.mResults = list1;
|
|
cascade->mRuleHash.EnumerateAllRules(data.mNameSpaceID, data.mContentTag, idAtom, classArray, ContentEnumFunc, &data);
|
|
data.mResults = list2;
|
|
cascade->mWeightedRules->EnumerateBackwards(ContentEnumWrap, &data);
|
|
NS_ASSERTION(list1->Equals(list2), "lists not equal");
|
|
NS_RELEASE(list1);
|
|
NS_RELEASE(list2);
|
|
#endif
|
|
|
|
NS_IF_RELEASE(idAtom);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
struct PseudoEnumData : public SelectorMatchesData {
|
|
PseudoEnumData(nsIPresContext* aPresContext, nsIContent* aParentContent,
|
|
nsIAtom* aPseudoTag, nsICSSPseudoComparator* aComparator,
|
|
nsIRuleWalker* aRuleWalker)
|
|
: SelectorMatchesData(aPresContext, aParentContent, aRuleWalker)
|
|
{
|
|
mPseudoTag = aPseudoTag;
|
|
mComparator = aComparator;
|
|
}
|
|
|
|
nsIAtom* mPseudoTag;
|
|
nsICSSPseudoComparator* mComparator;
|
|
};
|
|
|
|
static void PseudoEnumFunc(nsICSSStyleRule* aRule, void* aData)
|
|
{
|
|
PseudoEnumData* data = (PseudoEnumData*)aData;
|
|
|
|
nsCSSSelector* selector = aRule->FirstSelector();
|
|
|
|
NS_ASSERTION(selector->mTag == data->mPseudoTag, "RuleHash failure");
|
|
PRBool matches = PR_TRUE;
|
|
if (data->mComparator)
|
|
data->mComparator->PseudoMatches(data->mPseudoTag, selector, &matches);
|
|
|
|
if (matches) {
|
|
selector = selector->mNext;
|
|
|
|
if (selector) { // test next selector specially
|
|
if (PRUnichar('+') == selector->mOperator) {
|
|
return; // not valid here, can't match
|
|
}
|
|
if (SelectorMatches(*data, selector, PR_TRUE, 0)) {
|
|
selector = selector->mNext;
|
|
}
|
|
else {
|
|
if (PRUnichar('>') == selector->mOperator) {
|
|
return; // immediate parent didn't match
|
|
}
|
|
}
|
|
}
|
|
|
|
if (selector &&
|
|
(! SelectorMatchesTree(*data, selector))) {
|
|
return; // remaining selectors didn't match
|
|
}
|
|
|
|
nsIStyleRule* iRule;
|
|
if (NS_OK == aRule->QueryInterface(NS_GET_IID(nsIStyleRule), (void**)&iRule)) {
|
|
data->mRuleWalker->Forward(iRule);
|
|
NS_RELEASE(iRule);
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifdef DEBUG_RULES
|
|
static PRBool PseudoEnumWrap(nsISupports* aRule, void* aData)
|
|
{
|
|
PseudoEnumFunc((nsICSSStyleRule*)aRule, aData);
|
|
return PR_TRUE;
|
|
}
|
|
#endif
|
|
|
|
NS_IMETHODIMP
|
|
CSSRuleProcessor::RulesMatching(nsIPresContext* aPresContext,
|
|
nsIAtom* aMedium,
|
|
nsIContent* aParentContent,
|
|
nsIAtom* aPseudoTag,
|
|
nsIStyleContext* aParentContext,
|
|
nsICSSPseudoComparator* aComparator,
|
|
nsIRuleWalker* aRuleWalker)
|
|
{
|
|
NS_PRECONDITION(nsnull != aPresContext, "null arg");
|
|
NS_PRECONDITION(nsnull != aPseudoTag, "null arg");
|
|
NS_PRECONDITION(nsnull != aRuleWalker, "null arg");
|
|
|
|
RuleCascadeData* cascade = GetRuleCascade(aMedium);
|
|
|
|
if (cascade) {
|
|
PseudoEnumData data(aPresContext, aParentContent, aPseudoTag, aComparator, aRuleWalker);
|
|
cascade->mRuleHash.EnumerateTagRules(aPseudoTag, PseudoEnumFunc, &data);
|
|
|
|
#ifdef DEBUG_RULES
|
|
nsISupportsArray* list1;
|
|
nsISupportsArray* list2;
|
|
NS_NewISupportsArray(&list1);
|
|
NS_NewISupportsArray(&list2);
|
|
data.mResults = list1;
|
|
cascade->mRuleHash.EnumerateTagRules(aPseudoTag, PseudoEnumFunc, &data);
|
|
data.mResults = list2;
|
|
cascade->mWeightedRules->EnumerateBackwards(PseudoEnumWrap, &data);
|
|
NS_ASSERTION(list1->Equals(list2), "lists not equal");
|
|
NS_RELEASE(list1);
|
|
NS_RELEASE(list2);
|
|
#endif
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
struct StateEnumData : public SelectorMatchesData {
|
|
StateEnumData(nsIPresContext* aPresContext, nsIContent* aContent)
|
|
: SelectorMatchesData(aPresContext, aContent, nsnull)
|
|
{ }
|
|
};
|
|
|
|
static
|
|
PRBool PR_CALLBACK StateEnumFunc(void* aSelector, void* aData)
|
|
{
|
|
StateEnumData* data = (StateEnumData*)aData;
|
|
|
|
nsCSSSelector* selector = (nsCSSSelector*)aSelector;
|
|
if (SelectorMatches(*data, selector, PR_FALSE, 0)) {
|
|
selector = selector->mNext;
|
|
if (SelectorMatchesTree(*data, selector)) {
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSRuleProcessor::HasStateDependentStyle(nsIPresContext* aPresContext,
|
|
nsIAtom* aMedium,
|
|
nsIContent* aContent)
|
|
{
|
|
PRBool isStateful = PR_FALSE;
|
|
|
|
RuleCascadeData* cascade = GetRuleCascade(aMedium);
|
|
|
|
if (cascade) {
|
|
// look up content in state rule list
|
|
StateEnumData data(aPresContext, aContent);
|
|
isStateful = (! cascade->mStateSelectors.EnumerateForwards(StateEnumFunc, &data)); // if stopped, have state
|
|
}
|
|
|
|
return ((isStateful) ? NS_OK : NS_COMFALSE);
|
|
}
|
|
|
|
|
|
struct CascadeSizeEnumData {
|
|
|
|
CascadeSizeEnumData(nsISizeOfHandler *aSizeOfHandler,
|
|
nsUniqueStyleItems *aUniqueStyleItem,
|
|
nsIAtom *aTag)
|
|
{
|
|
handler = aSizeOfHandler;
|
|
uniqueItems = aUniqueStyleItem;
|
|
tag = aTag;
|
|
}
|
|
// weak references all 'round
|
|
|
|
nsISizeOfHandler *handler;
|
|
nsUniqueStyleItems *uniqueItems;
|
|
nsIAtom *tag;
|
|
};
|
|
|
|
static
|
|
PRBool PR_CALLBACK StateSelectorsSizeEnumFunc( void *aSelector, void *aData )
|
|
{
|
|
nsCSSSelector* selector = (nsCSSSelector*)aSelector;
|
|
CascadeSizeEnumData *pData = (CascadeSizeEnumData *)aData;
|
|
NS_ASSERTION(selector && pData, "null arguments not supported");
|
|
|
|
if(! pData->uniqueItems->AddItem((void*)selector)){
|
|
return PR_TRUE;
|
|
}
|
|
|
|
// pass the call to the selector
|
|
PRUint32 localSize = 0;
|
|
selector->SizeOf(pData->handler, localSize);
|
|
|
|
return PR_TRUE;
|
|
}
|
|
|
|
static
|
|
PRBool WeightedRulesSizeEnumFunc( nsISupports *aRule, void *aData )
|
|
{
|
|
nsICSSStyleRule* rule = (nsICSSStyleRule*)aRule;
|
|
CascadeSizeEnumData *pData = (CascadeSizeEnumData *)aData;
|
|
NS_ASSERTION(rule && pData, "null arguments not supported");
|
|
|
|
if(! pData->uniqueItems->AddItem((void*)rule)){
|
|
return PR_TRUE;
|
|
}
|
|
|
|
PRUint32 localSize=0;
|
|
|
|
// pass the call to the rule
|
|
rule->SizeOf(pData->handler, localSize);
|
|
|
|
return PR_TRUE;
|
|
}
|
|
|
|
static
|
|
PRBool PR_CALLBACK CascadeSizeEnumFunc(nsHashKey* aKey, void *aCascade, void *aData)
|
|
{
|
|
RuleCascadeData* cascade = (RuleCascadeData *) aCascade;
|
|
CascadeSizeEnumData *pData = (CascadeSizeEnumData *)aData;
|
|
NS_ASSERTION(cascade && pData, "null arguments not supported");
|
|
|
|
// see if the cascade has already been counted
|
|
if(!(pData->uniqueItems->AddItem(cascade))){
|
|
return PR_TRUE;
|
|
}
|
|
// record the size of the cascade data itself
|
|
PRUint32 localSize = sizeof(RuleCascadeData);
|
|
pData->handler->AddSize(pData->tag, localSize);
|
|
|
|
// next add up the selectors and the weighted rules for the cascade
|
|
nsCOMPtr<nsIAtom> stateSelectorSizeTag;
|
|
stateSelectorSizeTag = getter_AddRefs(NS_NewAtom("CascadeStateSelectors"));
|
|
CascadeSizeEnumData stateData(pData->handler,pData->uniqueItems,stateSelectorSizeTag);
|
|
cascade->mStateSelectors.EnumerateForwards(StateSelectorsSizeEnumFunc, &stateData);
|
|
|
|
if(cascade->mWeightedRules){
|
|
nsCOMPtr<nsIAtom> weightedRulesSizeTag;
|
|
weightedRulesSizeTag = getter_AddRefs(NS_NewAtom("CascadeWeightedRules"));
|
|
CascadeSizeEnumData stateData2(pData->handler,pData->uniqueItems,weightedRulesSizeTag);
|
|
cascade->mWeightedRules->EnumerateForwards(WeightedRulesSizeEnumFunc, &stateData2);
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* SizeOf method:
|
|
*
|
|
* Self (reported as CSSRuleProcessor's size):
|
|
* 1) sizeof(*this) + mMediumCascadeTable hashtable overhead
|
|
*
|
|
* Contained / Aggregated data (not reported as CSSRuleProcessor's size):
|
|
* 1) Delegate to the StyleSheets in the mSheets collection
|
|
* 2) Delegate to the Rules in the CascadeTable
|
|
*
|
|
* Children / siblings / parents:
|
|
* none
|
|
*
|
|
******************************************************************************/
|
|
void CSSRuleProcessor::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)){
|
|
return;
|
|
}
|
|
|
|
PRUint32 localSize=0;
|
|
|
|
// create a tag for this instance
|
|
nsCOMPtr<nsIAtom> tag;
|
|
tag = getter_AddRefs(NS_NewAtom("CSSRuleProcessor"));
|
|
// get the size of an empty instance and add to the sizeof handler
|
|
aSize = sizeof(CSSRuleProcessor);
|
|
|
|
// collect sizes for the data
|
|
// - mSheets
|
|
// - mMediumCascadeTable
|
|
|
|
// sheets first
|
|
if(mSheets && uniqueItems->AddItem(mSheets)){
|
|
PRUint32 sheetCount, curSheet, localSize2;
|
|
mSheets->Count(&sheetCount);
|
|
for(curSheet=0; curSheet < sheetCount; curSheet++){
|
|
nsICSSStyleSheet *pSheet = (nsICSSStyleSheet *)mSheets->ElementAt(curSheet);
|
|
if(pSheet && uniqueItems->AddItem((void*)pSheet)){
|
|
pSheet->SizeOf(aSizeOfHandler, localSize2);
|
|
// XXX aSize += localSize2;
|
|
}
|
|
}
|
|
}
|
|
|
|
// and for the medium cascade table we account for the hash table overhead,
|
|
// and then compute the sizeof each rule-cascade in the table
|
|
if(mMediumCascadeTable){
|
|
PRUint32 count;
|
|
count = mMediumCascadeTable->Count();
|
|
localSize = sizeof(PLHashTable);
|
|
if(count > 0){
|
|
aSize += sizeof(PLHashEntry) * count;
|
|
// now go ghrough each RuleCascade in the table
|
|
nsCOMPtr<nsIAtom> tag2 = getter_AddRefs(NS_NewAtom("RuleCascade"));
|
|
CascadeSizeEnumData data(aSizeOfHandler, uniqueItems, tag2);
|
|
mMediumCascadeTable->Enumerate(CascadeSizeEnumFunc, &data);
|
|
}
|
|
}
|
|
|
|
// now add the size of the RuleProcessor
|
|
aSizeOfHandler->AddSize(tag,aSize);
|
|
}
|
|
|
|
static PRBool PR_CALLBACK DeleteRuleCascade(nsHashKey* aKey, void* aValue, void* closure)
|
|
{
|
|
delete ((RuleCascadeData*)aValue);
|
|
return PR_TRUE;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSRuleProcessor::ClearRuleCascades(void)
|
|
{
|
|
if (mMediumCascadeTable) {
|
|
mMediumCascadeTable->Enumerate(DeleteRuleCascade, nsnull);
|
|
delete mMediumCascadeTable;
|
|
mMediumCascadeTable = nsnull;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
static
|
|
PRBool BuildHashEnum(nsISupports* aRule, void* aHash)
|
|
{
|
|
nsICSSStyleRule* rule = (nsICSSStyleRule*)aRule;
|
|
RuleHash* hash = (RuleHash*)aHash;
|
|
hash->AppendRule(rule);
|
|
return PR_TRUE;
|
|
}
|
|
|
|
static
|
|
PRBool IsStateSelector(nsCSSSelector& aSelector)
|
|
{
|
|
nsAtomList* pseudoClass = aSelector.mPseudoClassList;
|
|
while (pseudoClass) {
|
|
if ((pseudoClass->mAtom == nsCSSAtoms::activePseudo) ||
|
|
(pseudoClass->mAtom == nsCSSAtoms::anyLinkPseudo) ||
|
|
(pseudoClass->mAtom == nsCSSAtoms::checkedPseudo) ||
|
|
(pseudoClass->mAtom == nsCSSAtoms::disabledPseudo) ||
|
|
(pseudoClass->mAtom == nsCSSAtoms::dragOverPseudo) ||
|
|
(pseudoClass->mAtom == nsCSSAtoms::dragPseudo) ||
|
|
(pseudoClass->mAtom == nsCSSAtoms::enabledPseudo) ||
|
|
(pseudoClass->mAtom == nsCSSAtoms::focusPseudo) ||
|
|
(pseudoClass->mAtom == nsCSSAtoms::hoverPseudo) ||
|
|
(pseudoClass->mAtom == nsCSSAtoms::linkPseudo) ||
|
|
(pseudoClass->mAtom == nsCSSAtoms::selectionPseudo) ||
|
|
(pseudoClass->mAtom == nsCSSAtoms::visitedPseudo)) {
|
|
return PR_TRUE;
|
|
}
|
|
pseudoClass = pseudoClass->mNext;
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
static
|
|
PRBool BuildStateEnum(nsISupports* aRule, void* aArray)
|
|
{
|
|
nsICSSStyleRule* rule = (nsICSSStyleRule*)aRule;
|
|
nsVoidArray* array = (nsVoidArray*)aArray;
|
|
|
|
nsCSSSelector* selector = rule->FirstSelector();
|
|
|
|
while (selector) {
|
|
if (IsStateSelector(*selector)) {
|
|
array->AppendElement(selector);
|
|
}
|
|
selector = selector->mNext;
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
|
|
struct CascadeEnumData {
|
|
CascadeEnumData(nsIAtom* aMedium)
|
|
: mMedium(aMedium),
|
|
mRuleArrays(64)
|
|
{
|
|
}
|
|
|
|
nsIAtom* mMedium;
|
|
nsSupportsHashtable mRuleArrays; // of nsISupportsArray
|
|
};
|
|
|
|
static PRBool
|
|
InsertRuleByWeight(nsISupports* aRule, void* aData)
|
|
{
|
|
nsICSSRule* rule = (nsICSSRule*)aRule;
|
|
CascadeEnumData* data = (CascadeEnumData*)aData;
|
|
PRInt32 type;
|
|
rule->GetType(type);
|
|
|
|
if (nsICSSRule::STYLE_RULE == type) {
|
|
nsICSSStyleRule* styleRule = (nsICSSStyleRule*)rule;
|
|
|
|
PRInt32 weight = styleRule->GetWeight();
|
|
nsInt32Key key(weight);
|
|
nsCOMPtr<nsISupportsArray> rules(dont_AddRef(
|
|
NS_STATIC_CAST(nsISupportsArray*, data->mRuleArrays.Get(&key))));
|
|
if (!rules) {
|
|
NS_NewISupportsArray(getter_AddRefs(rules));
|
|
if (!rules) return PR_FALSE; // out of memory
|
|
data->mRuleArrays.Put(&key, rules);
|
|
}
|
|
rules->AppendElement(styleRule);
|
|
}
|
|
else if (nsICSSRule::MEDIA_RULE == type) {
|
|
nsICSSMediaRule* mediaRule = (nsICSSMediaRule*)rule;
|
|
if (NS_OK == mediaRule->UseForMedium(data->mMedium)) {
|
|
mediaRule->EnumerateRulesForwards(InsertRuleByWeight, aData);
|
|
}
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
|
|
|
|
PRBool
|
|
CSSRuleProcessor::CascadeSheetRulesInto(nsISupports* aSheet, void* aData)
|
|
{
|
|
nsICSSStyleSheet* iSheet = (nsICSSStyleSheet*)aSheet;
|
|
CSSStyleSheetImpl* sheet = (CSSStyleSheetImpl*)iSheet;
|
|
CascadeEnumData* data = (CascadeEnumData*)aData;
|
|
PRBool bSheetEnabled = PR_TRUE;
|
|
sheet->GetEnabled(bSheetEnabled);
|
|
|
|
if ((bSheetEnabled) && (NS_OK == sheet->UseForMedium(data->mMedium))) {
|
|
CSSStyleSheetImpl* child = sheet->mFirstChild;
|
|
while (child) {
|
|
CascadeSheetRulesInto((nsICSSStyleSheet*)child, data);
|
|
child = child->mNext;
|
|
}
|
|
|
|
if (sheet->mInner && sheet->mInner->mOrderedRules) {
|
|
sheet->mInner->mOrderedRules->EnumerateForwards(InsertRuleByWeight, data);
|
|
}
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
|
|
struct RuleArrayData {
|
|
PRInt32 mWeight;
|
|
nsISupportsArray* mRuleArray;
|
|
};
|
|
|
|
PR_STATIC_CALLBACK(int) CompareArrayData(const void* aArg1, const void* aArg2,
|
|
void* closure)
|
|
{
|
|
const RuleArrayData* arg1 = NS_STATIC_CAST(const RuleArrayData*, aArg1);
|
|
const RuleArrayData* arg2 = NS_STATIC_CAST(const RuleArrayData*, aArg2);
|
|
return arg2->mWeight - arg1->mWeight; // put higher weight first
|
|
}
|
|
|
|
|
|
struct FillArrayData {
|
|
FillArrayData(RuleArrayData* aArrayData) :
|
|
mIndex(0),
|
|
mArrayData(aArrayData)
|
|
{
|
|
}
|
|
PRInt32 mIndex;
|
|
RuleArrayData* mArrayData;
|
|
};
|
|
|
|
PR_STATIC_CALLBACK(PRBool) FillArray(nsHashKey* aKey, void* aData,
|
|
void* aClosure)
|
|
{
|
|
nsInt32Key* key = NS_STATIC_CAST(nsInt32Key*, aKey);
|
|
nsISupportsArray* weightArray = NS_STATIC_CAST(nsISupportsArray*, aData);
|
|
FillArrayData* data = NS_STATIC_CAST(FillArrayData*, aClosure);
|
|
|
|
RuleArrayData& ruleData = data->mArrayData[data->mIndex++];
|
|
ruleData.mRuleArray = weightArray;
|
|
ruleData.mWeight = key->mInt;
|
|
|
|
return PR_TRUE;
|
|
}
|
|
|
|
static PRBool AppendRuleToArray(nsISupports* aElement, void* aData)
|
|
{
|
|
nsISupportsArray* ruleArray = NS_STATIC_CAST(nsISupportsArray*, aData);
|
|
ruleArray->AppendElement(aElement);
|
|
return PR_TRUE;
|
|
}
|
|
|
|
/**
|
|
* Takes the hashtable of arrays (keyed by weight, in order sort) and
|
|
* puts them all in one big array which has a primary sort by weight
|
|
* and secondary sort by reverse order.
|
|
*/
|
|
static void PutRulesInList(nsSupportsHashtable* aRuleArrays,
|
|
nsISupportsArray* aWeightedRules)
|
|
{
|
|
PRInt32 arrayCount = aRuleArrays->Count();
|
|
RuleArrayData* arrayData = new RuleArrayData[arrayCount];
|
|
FillArrayData faData(arrayData);
|
|
aRuleArrays->Enumerate(FillArray, &faData);
|
|
NS_QuickSort(arrayData, arrayCount, sizeof(RuleArrayData),
|
|
CompareArrayData, nsnull);
|
|
PRInt32 i;
|
|
for (i = 0; i < arrayCount; i++) {
|
|
// append the array in reverse
|
|
arrayData[i].mRuleArray->EnumerateBackwards(AppendRuleToArray,
|
|
aWeightedRules);
|
|
}
|
|
|
|
delete [] arrayData;
|
|
}
|
|
|
|
RuleCascadeData*
|
|
CSSRuleProcessor::GetRuleCascade(nsIAtom* aMedium)
|
|
{
|
|
DependentAtomKey mediumKey(aMedium);
|
|
RuleCascadeData* cascade = nsnull;
|
|
|
|
if (mMediumCascadeTable) {
|
|
cascade = (RuleCascadeData*)mMediumCascadeTable->Get(&mediumKey);
|
|
}
|
|
|
|
if (! cascade) {
|
|
if (mSheets) {
|
|
if (! mMediumCascadeTable) {
|
|
mMediumCascadeTable = new nsHashtable();
|
|
}
|
|
if (mMediumCascadeTable) {
|
|
cascade = new RuleCascadeData();
|
|
if (cascade) {
|
|
mMediumCascadeTable->Put(&mediumKey, cascade);
|
|
|
|
CascadeEnumData data(aMedium);
|
|
mSheets->EnumerateForwards(CascadeSheetRulesInto, &data);
|
|
PutRulesInList(&data.mRuleArrays, cascade->mWeightedRules);
|
|
|
|
cascade->mWeightedRules->EnumerateBackwards(BuildHashEnum, &(cascade->mRuleHash));
|
|
cascade->mWeightedRules->EnumerateBackwards(BuildStateEnum, &(cascade->mStateSelectors));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return cascade;
|
|
}
|