mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-30 05:35:31 +00:00
1658 lines
46 KiB
C++
1658 lines
46 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* 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
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* David Hyatt <hyatt@netscape.com>
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* Daniel Glazman <glazman@netscape.com>
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* L. David Baron <dbaron@dbaron.org>, Mozilla Corporation
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/*
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* representation of CSS style rules (selectors+declaration), CSS
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* selectors, and DOM objects for style rules, selectors, and
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* declarations
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*/
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#include "nsCOMPtr.h"
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#include "nsCSSRule.h"
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#include "nsICSSStyleRule.h"
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#include "nsICSSGroupRule.h"
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#include "nsCSSDeclaration.h"
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#include "nsCSSStyleSheet.h"
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#include "nsCSSLoader.h"
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#include "nsIURL.h"
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#include "nsIDocument.h"
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#include "nsIDeviceContext.h"
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#include "nsIAtom.h"
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#include "nsCRT.h"
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#include "nsString.h"
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#include "nsStyleConsts.h"
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#include "nsStyleUtil.h"
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#include "nsIFontMetrics.h"
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#include "nsIDOMCSSStyleSheet.h"
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#include "nsICSSStyleRuleDOMWrapper.h"
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#include "nsIDOMCSSStyleDeclaration.h"
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#include "nsDOMCSSDeclaration.h"
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#include "nsINameSpaceManager.h"
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#include "nsXMLNameSpaceMap.h"
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#include "nsILookAndFeel.h"
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#include "nsRuleNode.h"
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#include "nsUnicharUtils.h"
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#include "nsCSSPseudoElements.h"
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#include "nsIPrincipal.h"
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#include "nsComponentManagerUtils.h"
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#include "nsCSSPseudoClasses.h"
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#include "nsCSSAnonBoxes.h"
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#include "nsTArray.h"
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#include "nsContentUtils.h"
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#include "nsContentErrors.h"
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#include "mozAutoDocUpdate.h"
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#include "prlog.h"
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#define NS_IF_CLONE(member_) \
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PR_BEGIN_MACRO \
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if (member_) { \
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result->member_ = member_->Clone(); \
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if (!result->member_) { \
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delete result; \
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return nsnull; \
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} \
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} \
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PR_END_MACRO
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#define NS_IF_DELETE(ptr) \
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PR_BEGIN_MACRO \
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delete ptr; \
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ptr = nsnull; \
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PR_END_MACRO
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/* ************************************************************************** */
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nsAtomList::nsAtomList(nsIAtom* aAtom)
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: mAtom(aAtom),
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mNext(nsnull)
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{
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MOZ_COUNT_CTOR(nsAtomList);
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}
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nsAtomList::nsAtomList(const nsString& aAtomValue)
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: mAtom(nsnull),
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mNext(nsnull)
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{
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MOZ_COUNT_CTOR(nsAtomList);
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mAtom = do_GetAtom(aAtomValue);
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}
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nsAtomList*
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nsAtomList::Clone(PRBool aDeep) const
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{
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nsAtomList *result = new nsAtomList(mAtom);
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if (!result)
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return nsnull;
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if (aDeep)
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NS_CSS_CLONE_LIST_MEMBER(nsAtomList, this, mNext, result, (PR_FALSE));
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return result;
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}
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nsAtomList::~nsAtomList(void)
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{
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MOZ_COUNT_DTOR(nsAtomList);
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NS_CSS_DELETE_LIST_MEMBER(nsAtomList, this, mNext);
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}
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nsPseudoClassList::nsPseudoClassList(nsIAtom* aAtom,
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nsCSSPseudoClasses::Type aType)
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: mAtom(aAtom),
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mType(aType),
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mNext(nsnull)
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{
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NS_ASSERTION(!nsCSSPseudoClasses::HasStringArg(aAtom) &&
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!nsCSSPseudoClasses::HasNthPairArg(aAtom),
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"unexpected pseudo-class");
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MOZ_COUNT_CTOR(nsPseudoClassList);
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u.mMemory = nsnull;
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}
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nsPseudoClassList::nsPseudoClassList(nsIAtom* aAtom,
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nsCSSPseudoClasses::Type aType,
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const PRUnichar* aString)
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: mAtom(aAtom),
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mType(aType),
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mNext(nsnull)
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{
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NS_ASSERTION(nsCSSPseudoClasses::HasStringArg(aAtom),
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"unexpected pseudo-class");
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NS_ASSERTION(aString, "string expected");
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MOZ_COUNT_CTOR(nsPseudoClassList);
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u.mString = NS_strdup(aString);
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}
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nsPseudoClassList::nsPseudoClassList(nsIAtom* aAtom,
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nsCSSPseudoClasses::Type aType,
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const PRInt32* aIntPair)
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: mAtom(aAtom),
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mType(aType),
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mNext(nsnull)
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{
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NS_ASSERTION(nsCSSPseudoClasses::HasNthPairArg(aAtom),
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"unexpected pseudo-class");
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NS_ASSERTION(aIntPair, "integer pair expected");
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MOZ_COUNT_CTOR(nsPseudoClassList);
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u.mNumbers =
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static_cast<PRInt32*>(nsMemory::Clone(aIntPair, sizeof(PRInt32) * 2));
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}
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// adopts aSelectorList
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nsPseudoClassList::nsPseudoClassList(nsIAtom* aAtom,
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nsCSSPseudoClasses::Type aType,
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nsCSSSelectorList* aSelectorList)
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: mAtom(aAtom),
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mType(aType),
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mNext(nsnull)
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{
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NS_ASSERTION(nsCSSPseudoClasses::HasSelectorListArg(aAtom),
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"unexpected pseudo-class");
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NS_ASSERTION(aSelectorList, "selector list expected");
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MOZ_COUNT_CTOR(nsPseudoClassList);
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u.mSelectors = aSelectorList;
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}
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nsPseudoClassList*
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nsPseudoClassList::Clone(PRBool aDeep) const
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{
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nsPseudoClassList *result;
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if (!u.mMemory) {
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result = new nsPseudoClassList(mAtom, mType);
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} else if (nsCSSPseudoClasses::HasStringArg(mAtom)) {
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result = new nsPseudoClassList(mAtom, mType, u.mString);
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} else if (nsCSSPseudoClasses::HasNthPairArg(mAtom)) {
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result = new nsPseudoClassList(mAtom, mType, u.mNumbers);
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} else {
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NS_ASSERTION(nsCSSPseudoClasses::HasSelectorListArg(mAtom),
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"unexpected pseudo-class");
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// This constructor adopts its selector list argument.
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result = new nsPseudoClassList(mAtom, mType, u.mSelectors->Clone());
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}
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if (aDeep)
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NS_CSS_CLONE_LIST_MEMBER(nsPseudoClassList, this, mNext, result,
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(PR_FALSE));
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return result;
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}
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nsPseudoClassList::~nsPseudoClassList(void)
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{
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MOZ_COUNT_DTOR(nsPseudoClassList);
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if (nsCSSPseudoClasses::HasSelectorListArg(mAtom)) {
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delete u.mSelectors;
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} else if (u.mMemory) {
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NS_Free(u.mMemory);
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}
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NS_CSS_DELETE_LIST_MEMBER(nsPseudoClassList, this, mNext);
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}
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nsAttrSelector::nsAttrSelector(PRInt32 aNameSpace, const nsString& aAttr)
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: mValue(),
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mNext(nsnull),
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mLowercaseAttr(nsnull),
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mCasedAttr(nsnull),
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mNameSpace(aNameSpace),
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mFunction(NS_ATTR_FUNC_SET),
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mCaseSensitive(1)
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{
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MOZ_COUNT_CTOR(nsAttrSelector);
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nsAutoString lowercase;
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ToLowerCase(aAttr, lowercase);
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mCasedAttr = do_GetAtom(aAttr);
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mLowercaseAttr = do_GetAtom(lowercase);
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}
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nsAttrSelector::nsAttrSelector(PRInt32 aNameSpace, const nsString& aAttr, PRUint8 aFunction,
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const nsString& aValue, PRBool aCaseSensitive)
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: mValue(aValue),
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mNext(nsnull),
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mLowercaseAttr(nsnull),
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mCasedAttr(nsnull),
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mNameSpace(aNameSpace),
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mFunction(aFunction),
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mCaseSensitive(aCaseSensitive)
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{
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MOZ_COUNT_CTOR(nsAttrSelector);
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nsAutoString lowercase;
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ToLowerCase(aAttr, lowercase);
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mCasedAttr = do_GetAtom(aAttr);
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mLowercaseAttr = do_GetAtom(lowercase);
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}
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nsAttrSelector::nsAttrSelector(PRInt32 aNameSpace, nsIAtom* aLowercaseAttr,
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nsIAtom* aCasedAttr, PRUint8 aFunction,
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const nsString& aValue, PRBool aCaseSensitive)
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: mValue(aValue),
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mNext(nsnull),
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mLowercaseAttr(aLowercaseAttr),
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mCasedAttr(aCasedAttr),
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mNameSpace(aNameSpace),
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mFunction(aFunction),
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mCaseSensitive(aCaseSensitive)
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{
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MOZ_COUNT_CTOR(nsAttrSelector);
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}
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nsAttrSelector*
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nsAttrSelector::Clone(PRBool aDeep) const
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{
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nsAttrSelector *result =
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new nsAttrSelector(mNameSpace, mLowercaseAttr, mCasedAttr,
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mFunction, mValue, mCaseSensitive);
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if (aDeep)
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NS_CSS_CLONE_LIST_MEMBER(nsAttrSelector, this, mNext, result, (PR_FALSE));
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return result;
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}
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nsAttrSelector::~nsAttrSelector(void)
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{
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MOZ_COUNT_DTOR(nsAttrSelector);
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NS_CSS_DELETE_LIST_MEMBER(nsAttrSelector, this, mNext);
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}
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// -- nsCSSSelector -------------------------------
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nsCSSSelector::nsCSSSelector(void)
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: mLowercaseTag(nsnull),
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mCasedTag(nsnull),
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mIDList(nsnull),
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mClassList(nsnull),
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mPseudoClassList(nsnull),
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mAttrList(nsnull),
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mNegations(nsnull),
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mNext(nsnull),
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mNameSpace(kNameSpaceID_Unknown),
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mOperator(0),
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mPseudoType(nsCSSPseudoElements::ePseudo_NotPseudoElement)
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{
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MOZ_COUNT_CTOR(nsCSSSelector);
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// Make sure mPseudoType can hold all nsCSSPseudoElements::Type values
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PR_STATIC_ASSERT(nsCSSPseudoElements::ePseudo_MAX < PR_INT16_MAX);
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}
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nsCSSSelector*
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nsCSSSelector::Clone(PRBool aDeepNext, PRBool aDeepNegations) const
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{
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nsCSSSelector *result = new nsCSSSelector();
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if (!result)
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return nsnull;
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result->mNameSpace = mNameSpace;
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result->mLowercaseTag = mLowercaseTag;
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result->mCasedTag = mCasedTag;
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result->mOperator = mOperator;
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result->mPseudoType = mPseudoType;
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NS_IF_CLONE(mIDList);
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NS_IF_CLONE(mClassList);
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NS_IF_CLONE(mPseudoClassList);
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NS_IF_CLONE(mAttrList);
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// No need to worry about multiple levels of recursion since an
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// mNegations can't have an mNext.
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NS_ASSERTION(!mNegations || !mNegations->mNext,
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"mNegations can't have non-null mNext");
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if (aDeepNegations) {
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NS_CSS_CLONE_LIST_MEMBER(nsCSSSelector, this, mNegations, result,
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(PR_TRUE, PR_FALSE));
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}
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if (aDeepNext) {
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NS_CSS_CLONE_LIST_MEMBER(nsCSSSelector, this, mNext, result,
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(PR_FALSE, PR_TRUE));
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}
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return result;
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}
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nsCSSSelector::~nsCSSSelector(void)
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{
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MOZ_COUNT_DTOR(nsCSSSelector);
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Reset();
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// No need to worry about multiple levels of recursion since an
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// mNegations can't have an mNext.
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NS_CSS_DELETE_LIST_MEMBER(nsCSSSelector, this, mNext);
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}
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void nsCSSSelector::Reset(void)
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{
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mNameSpace = kNameSpaceID_Unknown;
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mLowercaseTag = nsnull;
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mCasedTag = nsnull;
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NS_IF_DELETE(mIDList);
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NS_IF_DELETE(mClassList);
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NS_IF_DELETE(mPseudoClassList);
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NS_IF_DELETE(mAttrList);
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// No need to worry about multiple levels of recursion since an
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// mNegations can't have an mNext.
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NS_ASSERTION(!mNegations || !mNegations->mNext,
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"mNegations can't have non-null mNext");
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NS_CSS_DELETE_LIST_MEMBER(nsCSSSelector, this, mNegations);
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mOperator = PRUnichar(0);
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}
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void nsCSSSelector::SetNameSpace(PRInt32 aNameSpace)
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{
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mNameSpace = aNameSpace;
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}
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void nsCSSSelector::SetTag(const nsString& aTag)
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{
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if (aTag.IsEmpty()) {
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mLowercaseTag = mCasedTag = nsnull;
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return;
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}
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mCasedTag = do_GetAtom(aTag);
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nsAutoString lowercase;
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ToLowerCase(aTag, lowercase);
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mLowercaseTag = do_GetAtom(lowercase);
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}
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void nsCSSSelector::AddID(const nsString& aID)
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{
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if (!aID.IsEmpty()) {
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nsAtomList** list = &mIDList;
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while (nsnull != *list) {
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list = &((*list)->mNext);
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}
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*list = new nsAtomList(aID);
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}
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}
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void nsCSSSelector::AddClass(const nsString& aClass)
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{
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if (!aClass.IsEmpty()) {
|
|
nsAtomList** list = &mClassList;
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while (nsnull != *list) {
|
|
list = &((*list)->mNext);
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}
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*list = new nsAtomList(aClass);
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}
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}
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void nsCSSSelector::AddPseudoClass(nsIAtom* aPseudoClass,
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nsCSSPseudoClasses::Type aType)
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{
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AddPseudoClassInternal(new nsPseudoClassList(aPseudoClass, aType));
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|
}
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void nsCSSSelector::AddPseudoClass(nsIAtom* aPseudoClass,
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|
nsCSSPseudoClasses::Type aType,
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|
const PRUnichar* aString)
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|
{
|
|
AddPseudoClassInternal(new nsPseudoClassList(aPseudoClass, aType, aString));
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|
}
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|
|
void nsCSSSelector::AddPseudoClass(nsIAtom* aPseudoClass,
|
|
nsCSSPseudoClasses::Type aType,
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|
const PRInt32* aIntPair)
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|
{
|
|
AddPseudoClassInternal(new nsPseudoClassList(aPseudoClass, aType, aIntPair));
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|
}
|
|
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|
void nsCSSSelector::AddPseudoClass(nsIAtom* aPseudoClass,
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|
nsCSSPseudoClasses::Type aType,
|
|
nsCSSSelectorList* aSelectorList)
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|
{
|
|
// Take ownership of nsCSSSelectorList instead of copying.
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|
AddPseudoClassInternal(new nsPseudoClassList(aPseudoClass, aType,
|
|
aSelectorList));
|
|
}
|
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|
|
void nsCSSSelector::AddPseudoClassInternal(nsPseudoClassList *aPseudoClass)
|
|
{
|
|
nsPseudoClassList** list = &mPseudoClassList;
|
|
while (nsnull != *list) {
|
|
list = &((*list)->mNext);
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|
}
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|
*list = aPseudoClass;
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|
}
|
|
|
|
void nsCSSSelector::AddAttribute(PRInt32 aNameSpace, const nsString& aAttr)
|
|
{
|
|
if (!aAttr.IsEmpty()) {
|
|
nsAttrSelector** list = &mAttrList;
|
|
while (nsnull != *list) {
|
|
list = &((*list)->mNext);
|
|
}
|
|
*list = new nsAttrSelector(aNameSpace, aAttr);
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|
}
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|
}
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|
void nsCSSSelector::AddAttribute(PRInt32 aNameSpace, const nsString& aAttr, PRUint8 aFunc,
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|
const nsString& aValue, PRBool aCaseSensitive)
|
|
{
|
|
if (!aAttr.IsEmpty()) {
|
|
nsAttrSelector** list = &mAttrList;
|
|
while (nsnull != *list) {
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|
list = &((*list)->mNext);
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|
}
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|
*list = new nsAttrSelector(aNameSpace, aAttr, aFunc, aValue, aCaseSensitive);
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|
}
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|
}
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|
void nsCSSSelector::SetOperator(PRUnichar aOperator)
|
|
{
|
|
mOperator = aOperator;
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|
}
|
|
|
|
PRInt32 nsCSSSelector::CalcWeightWithoutNegations() const
|
|
{
|
|
PRInt32 weight = 0;
|
|
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|
if (nsnull != mLowercaseTag) {
|
|
weight += 0x000001;
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|
}
|
|
nsAtomList* list = mIDList;
|
|
while (nsnull != list) {
|
|
weight += 0x010000;
|
|
list = list->mNext;
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|
}
|
|
list = mClassList;
|
|
while (nsnull != list) {
|
|
weight += 0x000100;
|
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list = list->mNext;
|
|
}
|
|
// FIXME (bug 561154): This is incorrect for :-moz-any(), which isn't
|
|
// really a pseudo-class. In order to handle :-moz-any() correctly,
|
|
// we need to compute specificity after we match, based on which
|
|
// option we matched with (and thus also need to try the
|
|
// highest-specificity options first).
|
|
nsPseudoClassList *plist = mPseudoClassList;
|
|
while (nsnull != plist) {
|
|
weight += 0x000100;
|
|
plist = plist->mNext;
|
|
}
|
|
nsAttrSelector* attr = mAttrList;
|
|
while (nsnull != attr) {
|
|
weight += 0x000100;
|
|
attr = attr->mNext;
|
|
}
|
|
return weight;
|
|
}
|
|
|
|
PRInt32 nsCSSSelector::CalcWeight() const
|
|
{
|
|
// Loop over this selector and all its negations.
|
|
PRInt32 weight = 0;
|
|
for (const nsCSSSelector *n = this; n; n = n->mNegations) {
|
|
weight += n->CalcWeightWithoutNegations();
|
|
}
|
|
return weight;
|
|
}
|
|
|
|
//
|
|
// Builds the textual representation of a selector. Called by DOM 2 CSS
|
|
// StyleRule:selectorText
|
|
//
|
|
void
|
|
nsCSSSelector::ToString(nsAString& aString, nsCSSStyleSheet* aSheet,
|
|
PRBool aAppend) const
|
|
{
|
|
if (!aAppend)
|
|
aString.Truncate();
|
|
|
|
// selectors are linked from right-to-left, so the next selector in
|
|
// the linked list actually precedes this one in the resulting string
|
|
nsAutoTArray<const nsCSSSelector*, 8> stack;
|
|
for (const nsCSSSelector *s = this; s; s = s->mNext) {
|
|
stack.AppendElement(s);
|
|
}
|
|
|
|
while (!stack.IsEmpty()) {
|
|
PRUint32 index = stack.Length() - 1;
|
|
const nsCSSSelector *s = stack.ElementAt(index);
|
|
stack.RemoveElementAt(index);
|
|
|
|
s->AppendToStringWithoutCombinators(aString, aSheet);
|
|
|
|
// Append the combinator, if needed.
|
|
if (!stack.IsEmpty()) {
|
|
const nsCSSSelector *next = stack.ElementAt(index - 1);
|
|
PRUnichar oper = s->mOperator;
|
|
if (next->IsPseudoElement()) {
|
|
NS_ASSERTION(oper == PRUnichar('>'),
|
|
"improperly chained pseudo element");
|
|
} else {
|
|
NS_ASSERTION(oper != PRUnichar(0),
|
|
"compound selector without combinator");
|
|
|
|
aString.Append(PRUnichar(' '));
|
|
if (oper != PRUnichar(' ')) {
|
|
aString.Append(oper);
|
|
aString.Append(PRUnichar(' '));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
nsCSSSelector::AppendToStringWithoutCombinators
|
|
(nsAString& aString, nsCSSStyleSheet* aSheet) const
|
|
{
|
|
AppendToStringWithoutCombinatorsOrNegations(aString, aSheet, PR_FALSE);
|
|
|
|
for (const nsCSSSelector* negation = mNegations; negation;
|
|
negation = negation->mNegations) {
|
|
aString.AppendLiteral(":not(");
|
|
negation->AppendToStringWithoutCombinatorsOrNegations(aString, aSheet,
|
|
PR_TRUE);
|
|
aString.Append(PRUnichar(')'));
|
|
}
|
|
}
|
|
|
|
void
|
|
nsCSSSelector::AppendToStringWithoutCombinatorsOrNegations
|
|
(nsAString& aString, nsCSSStyleSheet* aSheet,
|
|
PRBool aIsNegated) const
|
|
{
|
|
nsAutoString temp;
|
|
PRBool isPseudoElement = IsPseudoElement();
|
|
|
|
// For non-pseudo-element selectors or for lone pseudo-elements, deal with
|
|
// namespace prefixes.
|
|
PRBool wroteNamespace = PR_FALSE;
|
|
if (!isPseudoElement || !mNext) {
|
|
// append the namespace prefix if needed
|
|
nsXMLNameSpaceMap *sheetNS = aSheet ? aSheet->GetNameSpaceMap() : nsnull;
|
|
|
|
// sheetNS is non-null if and only if we had an @namespace rule. If it's
|
|
// null, that means that the only namespaces we could have are the
|
|
// wildcard namespace (which can be implicit in this case) and the "none"
|
|
// namespace, which then needs to be explicitly specified.
|
|
if (!sheetNS) {
|
|
NS_ASSERTION(mNameSpace == kNameSpaceID_Unknown ||
|
|
mNameSpace == kNameSpaceID_None,
|
|
"How did we get this namespace?");
|
|
if (mNameSpace == kNameSpaceID_None) {
|
|
aString.Append(PRUnichar('|'));
|
|
wroteNamespace = PR_TRUE;
|
|
}
|
|
} else if (sheetNS->FindNameSpaceID(nsnull) == mNameSpace) {
|
|
// We have the default namespace (possibly including the wildcard
|
|
// namespace). Do nothing.
|
|
NS_ASSERTION(mNameSpace == kNameSpaceID_Unknown ||
|
|
CanBeNamespaced(aIsNegated),
|
|
"How did we end up with this namespace?");
|
|
} else if (mNameSpace == kNameSpaceID_None) {
|
|
NS_ASSERTION(CanBeNamespaced(aIsNegated),
|
|
"How did we end up with this namespace?");
|
|
aString.Append(PRUnichar('|'));
|
|
wroteNamespace = PR_TRUE;
|
|
} else if (mNameSpace != kNameSpaceID_Unknown) {
|
|
NS_ASSERTION(CanBeNamespaced(aIsNegated),
|
|
"How did we end up with this namespace?");
|
|
nsIAtom *prefixAtom = sheetNS->FindPrefix(mNameSpace);
|
|
NS_ASSERTION(prefixAtom, "how'd we get a non-default namespace "
|
|
"without a prefix?");
|
|
nsStyleUtil::AppendEscapedCSSIdent(nsDependentAtomString(prefixAtom),
|
|
aString);
|
|
aString.Append(PRUnichar('|'));
|
|
wroteNamespace = PR_TRUE;
|
|
} else {
|
|
// A selector for an element in any namespace, while the default
|
|
// namespace is something else. :not() is special in that the default
|
|
// namespace is not implied for non-type selectors, so if this is a
|
|
// negated non-type selector we don't need to output an explicit wildcard
|
|
// namespace here, since those default to a wildcard namespace.
|
|
if (CanBeNamespaced(aIsNegated)) {
|
|
aString.AppendLiteral("*|");
|
|
wroteNamespace = PR_TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!mLowercaseTag) {
|
|
// Universal selector: avoid writing the universal selector when we
|
|
// can avoid it, especially since we're required to avoid it for the
|
|
// inside of :not()
|
|
if (wroteNamespace ||
|
|
(!mIDList && !mClassList && !mPseudoClassList && !mAttrList &&
|
|
(aIsNegated || !mNegations))) {
|
|
aString.Append(PRUnichar('*'));
|
|
}
|
|
} else {
|
|
// Append the tag name
|
|
nsAutoString tag;
|
|
(isPseudoElement ? mLowercaseTag : mCasedTag)->ToString(tag);
|
|
if (isPseudoElement) {
|
|
if (!mNext) {
|
|
// Lone pseudo-element selector -- toss in a wildcard type selector
|
|
// XXXldb Why?
|
|
aString.Append(PRUnichar('*'));
|
|
}
|
|
if (!nsCSSPseudoElements::IsCSS2PseudoElement(mLowercaseTag)) {
|
|
aString.Append(PRUnichar(':'));
|
|
}
|
|
// This should not be escaped since (a) the pseudo-element string
|
|
// has a ":" that can't be escaped and (b) all pseudo-elements at
|
|
// this point are known, and therefore we know they don't need
|
|
// escaping.
|
|
aString.Append(tag);
|
|
} else {
|
|
nsStyleUtil::AppendEscapedCSSIdent(tag, aString);
|
|
}
|
|
}
|
|
|
|
// Append the id, if there is one
|
|
if (mIDList) {
|
|
nsAtomList* list = mIDList;
|
|
while (list != nsnull) {
|
|
list->mAtom->ToString(temp);
|
|
aString.Append(PRUnichar('#'));
|
|
nsStyleUtil::AppendEscapedCSSIdent(temp, aString);
|
|
list = list->mNext;
|
|
}
|
|
}
|
|
|
|
// Append each class in the linked list
|
|
if (mClassList) {
|
|
nsAtomList* list = mClassList;
|
|
while (list != nsnull) {
|
|
list->mAtom->ToString(temp);
|
|
aString.Append(PRUnichar('.'));
|
|
nsStyleUtil::AppendEscapedCSSIdent(temp, aString);
|
|
list = list->mNext;
|
|
}
|
|
}
|
|
|
|
// Append each attribute selector in the linked list
|
|
if (mAttrList) {
|
|
nsAttrSelector* list = mAttrList;
|
|
while (list != nsnull) {
|
|
aString.Append(PRUnichar('['));
|
|
// Append the namespace prefix
|
|
if (list->mNameSpace == kNameSpaceID_Unknown) {
|
|
aString.Append(PRUnichar('*'));
|
|
aString.Append(PRUnichar('|'));
|
|
} else if (list->mNameSpace != kNameSpaceID_None) {
|
|
if (aSheet) {
|
|
nsXMLNameSpaceMap *sheetNS = aSheet->GetNameSpaceMap();
|
|
nsIAtom *prefixAtom = sheetNS->FindPrefix(list->mNameSpace);
|
|
// Default namespaces don't apply to attribute selectors, so
|
|
// we must have a useful prefix.
|
|
NS_ASSERTION(prefixAtom,
|
|
"How did we end up with a namespace if the prefix "
|
|
"is unknown?");
|
|
nsAutoString prefix;
|
|
prefixAtom->ToString(prefix);
|
|
nsStyleUtil::AppendEscapedCSSIdent(prefix, aString);
|
|
aString.Append(PRUnichar('|'));
|
|
}
|
|
}
|
|
// Append the attribute name
|
|
list->mCasedAttr->ToString(temp);
|
|
nsStyleUtil::AppendEscapedCSSIdent(temp, aString);
|
|
|
|
if (list->mFunction != NS_ATTR_FUNC_SET) {
|
|
// Append the function
|
|
if (list->mFunction == NS_ATTR_FUNC_INCLUDES)
|
|
aString.Append(PRUnichar('~'));
|
|
else if (list->mFunction == NS_ATTR_FUNC_DASHMATCH)
|
|
aString.Append(PRUnichar('|'));
|
|
else if (list->mFunction == NS_ATTR_FUNC_BEGINSMATCH)
|
|
aString.Append(PRUnichar('^'));
|
|
else if (list->mFunction == NS_ATTR_FUNC_ENDSMATCH)
|
|
aString.Append(PRUnichar('$'));
|
|
else if (list->mFunction == NS_ATTR_FUNC_CONTAINSMATCH)
|
|
aString.Append(PRUnichar('*'));
|
|
|
|
aString.Append(PRUnichar('='));
|
|
|
|
// Append the value
|
|
nsStyleUtil::AppendEscapedCSSString(list->mValue, aString);
|
|
}
|
|
|
|
aString.Append(PRUnichar(']'));
|
|
|
|
list = list->mNext;
|
|
}
|
|
}
|
|
|
|
// Append each pseudo-class in the linked list
|
|
if (isPseudoElement) {
|
|
#ifdef MOZ_XUL
|
|
if (mPseudoClassList) {
|
|
NS_ABORT_IF_FALSE(nsCSSAnonBoxes::IsTreePseudoElement(mLowercaseTag),
|
|
"must be tree pseudo-element");
|
|
aString.Append(PRUnichar('('));
|
|
for (nsPseudoClassList* list = mPseudoClassList; list;
|
|
list = list->mNext) {
|
|
list->mAtom->ToString(temp);
|
|
nsStyleUtil::AppendEscapedCSSIdent(temp, aString);
|
|
NS_ABORT_IF_FALSE(!list->u.mMemory, "data not expected");
|
|
aString.Append(PRUnichar(','));
|
|
}
|
|
// replace the final comma with a close-paren
|
|
aString.Replace(aString.Length() - 1, 1, PRUnichar(')'));
|
|
}
|
|
#else
|
|
NS_ABORT_IF_FALSE(!mPseudoClassList, "unexpected pseudo-class list");
|
|
#endif
|
|
} else {
|
|
for (nsPseudoClassList* list = mPseudoClassList; list; list = list->mNext) {
|
|
list->mAtom->ToString(temp);
|
|
// This should not be escaped since (a) the pseudo-class string
|
|
// has a ":" that can't be escaped and (b) all pseudo-classes at
|
|
// this point are known, and therefore we know they don't need
|
|
// escaping.
|
|
aString.Append(temp);
|
|
if (list->u.mMemory) {
|
|
aString.Append(PRUnichar('('));
|
|
if (nsCSSPseudoClasses::HasStringArg(list->mAtom)) {
|
|
nsStyleUtil::AppendEscapedCSSIdent(
|
|
nsDependentString(list->u.mString), aString);
|
|
} else if (nsCSSPseudoClasses::HasNthPairArg(list->mAtom)) {
|
|
PRInt32 a = list->u.mNumbers[0],
|
|
b = list->u.mNumbers[1];
|
|
temp.Truncate();
|
|
if (a != 0) {
|
|
if (a == -1) {
|
|
temp.Append(PRUnichar('-'));
|
|
} else if (a != 1) {
|
|
temp.AppendInt(a);
|
|
}
|
|
temp.Append(PRUnichar('n'));
|
|
}
|
|
if (b != 0 || a == 0) {
|
|
if (b >= 0 && a != 0) // check a != 0 for whether we printed above
|
|
temp.Append(PRUnichar('+'));
|
|
temp.AppendInt(b);
|
|
}
|
|
aString.Append(temp);
|
|
} else {
|
|
NS_ASSERTION(nsCSSPseudoClasses::HasSelectorListArg(list->mAtom),
|
|
"unexpected pseudo-class");
|
|
nsString tmp;
|
|
list->u.mSelectors->ToString(tmp, aSheet);
|
|
aString.Append(tmp);
|
|
}
|
|
aString.Append(PRUnichar(')'));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
PRBool
|
|
nsCSSSelector::CanBeNamespaced(PRBool aIsNegated) const
|
|
{
|
|
return !aIsNegated ||
|
|
(!mIDList && !mClassList && !mPseudoClassList && !mAttrList);
|
|
}
|
|
|
|
// -- nsCSSSelectorList -------------------------------
|
|
|
|
nsCSSSelectorList::nsCSSSelectorList(void)
|
|
: mSelectors(nsnull),
|
|
mWeight(0),
|
|
mNext(nsnull)
|
|
{
|
|
MOZ_COUNT_CTOR(nsCSSSelectorList);
|
|
}
|
|
|
|
nsCSSSelectorList::~nsCSSSelectorList()
|
|
{
|
|
MOZ_COUNT_DTOR(nsCSSSelectorList);
|
|
delete mSelectors;
|
|
NS_CSS_DELETE_LIST_MEMBER(nsCSSSelectorList, this, mNext);
|
|
}
|
|
|
|
nsCSSSelector*
|
|
nsCSSSelectorList::AddSelector(PRUnichar aOperator)
|
|
{
|
|
nsCSSSelector* newSel = new nsCSSSelector();
|
|
|
|
if (mSelectors) {
|
|
NS_ASSERTION(aOperator != PRUnichar(0), "chaining without combinator");
|
|
mSelectors->SetOperator(aOperator);
|
|
} else {
|
|
NS_ASSERTION(aOperator == PRUnichar(0), "combinator without chaining");
|
|
}
|
|
|
|
newSel->mNext = mSelectors;
|
|
mSelectors = newSel;
|
|
return newSel;
|
|
}
|
|
|
|
void
|
|
nsCSSSelectorList::ToString(nsAString& aResult, nsCSSStyleSheet* aSheet)
|
|
{
|
|
aResult.Truncate();
|
|
nsCSSSelectorList *p = this;
|
|
for (;;) {
|
|
p->mSelectors->ToString(aResult, aSheet, PR_TRUE);
|
|
p = p->mNext;
|
|
if (!p)
|
|
break;
|
|
aResult.AppendLiteral(", ");
|
|
}
|
|
}
|
|
|
|
nsCSSSelectorList*
|
|
nsCSSSelectorList::Clone(PRBool aDeep) const
|
|
{
|
|
nsCSSSelectorList *result = new nsCSSSelectorList();
|
|
result->mWeight = mWeight;
|
|
NS_IF_CLONE(mSelectors);
|
|
|
|
if (aDeep) {
|
|
NS_CSS_CLONE_LIST_MEMBER(nsCSSSelectorList, this, mNext, result,
|
|
(PR_FALSE));
|
|
}
|
|
return result;
|
|
}
|
|
|
|
// -- CSSImportantRule -------------------------------
|
|
|
|
class CSSStyleRuleImpl;
|
|
|
|
class CSSImportantRule : public nsIStyleRule {
|
|
public:
|
|
CSSImportantRule(nsCSSCompressedDataBlock *aImportantBlock);
|
|
|
|
NS_DECL_ISUPPORTS
|
|
|
|
// nsIStyleRule interface
|
|
virtual void MapRuleInfoInto(nsRuleData* aRuleData);
|
|
#ifdef DEBUG
|
|
virtual void List(FILE* out = stdout, PRInt32 aIndent = 0) const;
|
|
#endif
|
|
|
|
protected:
|
|
virtual ~CSSImportantRule(void);
|
|
|
|
nsRefPtr<nsCSSCompressedDataBlock> mImportantBlock;
|
|
|
|
friend class CSSStyleRuleImpl;
|
|
};
|
|
|
|
CSSImportantRule::CSSImportantRule(nsCSSCompressedDataBlock* aImportantBlock)
|
|
: mImportantBlock(aImportantBlock)
|
|
{
|
|
}
|
|
|
|
CSSImportantRule::~CSSImportantRule(void)
|
|
{
|
|
}
|
|
|
|
NS_IMPL_ISUPPORTS1(CSSImportantRule, nsIStyleRule)
|
|
|
|
/* virtual */ void
|
|
CSSImportantRule::MapRuleInfoInto(nsRuleData* aRuleData)
|
|
{
|
|
mImportantBlock->MapRuleInfoInto(aRuleData);
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
/* virtual */ void
|
|
CSSImportantRule::List(FILE* out, PRInt32 aIndent) const
|
|
{
|
|
// Indent
|
|
for (PRInt32 index = aIndent; --index >= 0; ) fputs(" ", out);
|
|
|
|
fprintf(out, "! Important rule block=%p\n",
|
|
static_cast<void*>(mImportantBlock.get()));
|
|
}
|
|
#endif
|
|
|
|
// --------------------------------------------------------
|
|
|
|
class DOMCSSStyleRuleImpl;
|
|
|
|
class DOMCSSDeclarationImpl : public nsDOMCSSDeclaration
|
|
{
|
|
public:
|
|
DOMCSSDeclarationImpl(nsICSSStyleRule *aRule);
|
|
virtual ~DOMCSSDeclarationImpl(void);
|
|
|
|
NS_IMETHOD GetParentRule(nsIDOMCSSRule **aParent);
|
|
void DropReference(void);
|
|
virtual nsresult GetCSSDeclaration(nsCSSDeclaration **aDecl,
|
|
PRBool aAllocate);
|
|
virtual nsresult GetCSSParsingEnvironment(nsIURI** aSheetURI,
|
|
nsIURI** aBaseURI,
|
|
nsIPrincipal** aSheetPrincipal,
|
|
mozilla::css::Loader** aCSSLoader);
|
|
virtual nsresult DeclarationChanged();
|
|
virtual nsIDocument* DocToUpdate();
|
|
|
|
// Override |AddRef| and |Release| for being a member of
|
|
// |DOMCSSStyleRuleImpl|.
|
|
NS_IMETHOD_(nsrefcnt) AddRef(void);
|
|
NS_IMETHOD_(nsrefcnt) Release(void);
|
|
|
|
virtual nsINode *GetParentObject()
|
|
{
|
|
return nsnull;
|
|
}
|
|
|
|
friend class DOMCSSStyleRuleImpl;
|
|
|
|
protected:
|
|
// This reference is not reference-counted. The rule object tells us
|
|
// when it's about to go away.
|
|
nsICSSStyleRule *mRule;
|
|
|
|
inline DOMCSSStyleRuleImpl* DomRule();
|
|
|
|
private:
|
|
// NOT TO BE IMPLEMENTED
|
|
// This object cannot be allocated on its own. It must be a member of
|
|
// DOMCSSStyleRuleImpl.
|
|
void* operator new(size_t size) CPP_THROW_NEW;
|
|
};
|
|
|
|
class DOMCSSStyleRuleImpl : public nsICSSStyleRuleDOMWrapper
|
|
{
|
|
public:
|
|
DOMCSSStyleRuleImpl(nsICSSStyleRule *aRule);
|
|
virtual ~DOMCSSStyleRuleImpl();
|
|
|
|
NS_DECL_ISUPPORTS
|
|
NS_DECL_NSIDOMCSSRULE
|
|
NS_DECL_NSIDOMCSSSTYLERULE
|
|
|
|
// nsICSSStyleRuleDOMWrapper
|
|
NS_IMETHOD GetCSSStyleRule(nsICSSStyleRule **aResult);
|
|
|
|
DOMCSSDeclarationImpl* DOMDeclaration() { return &mDOMDeclaration; }
|
|
|
|
friend class DOMCSSDeclarationImpl;
|
|
|
|
protected:
|
|
DOMCSSDeclarationImpl mDOMDeclaration;
|
|
|
|
nsICSSStyleRule* Rule() {
|
|
return mDOMDeclaration.mRule;
|
|
}
|
|
};
|
|
|
|
DOMCSSDeclarationImpl::DOMCSSDeclarationImpl(nsICSSStyleRule *aRule)
|
|
: mRule(aRule)
|
|
{
|
|
MOZ_COUNT_CTOR(DOMCSSDeclarationImpl);
|
|
}
|
|
|
|
DOMCSSDeclarationImpl::~DOMCSSDeclarationImpl(void)
|
|
{
|
|
NS_ASSERTION(!mRule, "DropReference not called.");
|
|
|
|
MOZ_COUNT_DTOR(DOMCSSDeclarationImpl);
|
|
}
|
|
|
|
inline DOMCSSStyleRuleImpl* DOMCSSDeclarationImpl::DomRule()
|
|
{
|
|
return reinterpret_cast<DOMCSSStyleRuleImpl*>
|
|
(reinterpret_cast<char*>(this) -
|
|
offsetof(DOMCSSStyleRuleImpl, mDOMDeclaration));
|
|
}
|
|
|
|
NS_IMPL_ADDREF_USING_AGGREGATOR(DOMCSSDeclarationImpl, DomRule())
|
|
NS_IMPL_RELEASE_USING_AGGREGATOR(DOMCSSDeclarationImpl, DomRule())
|
|
|
|
void
|
|
DOMCSSDeclarationImpl::DropReference(void)
|
|
{
|
|
mRule = nsnull;
|
|
}
|
|
|
|
nsresult
|
|
DOMCSSDeclarationImpl::GetCSSDeclaration(nsCSSDeclaration **aDecl,
|
|
PRBool aAllocate)
|
|
{
|
|
if (mRule) {
|
|
*aDecl = mRule->GetDeclaration();
|
|
}
|
|
else {
|
|
*aDecl = nsnull;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
/*
|
|
* This is a utility function. It will only fail if it can't get a
|
|
* parser. This means it can return NS_OK without aURI or aCSSLoader
|
|
* being initialized.
|
|
*/
|
|
nsresult
|
|
DOMCSSDeclarationImpl::GetCSSParsingEnvironment(nsIURI** aSheetURI,
|
|
nsIURI** aBaseURI,
|
|
nsIPrincipal** aSheetPrincipal,
|
|
mozilla::css::Loader** aCSSLoader)
|
|
{
|
|
// null out the out params since some of them may not get initialized below
|
|
*aSheetURI = nsnull;
|
|
*aBaseURI = nsnull;
|
|
*aSheetPrincipal = nsnull;
|
|
*aCSSLoader = nsnull;
|
|
|
|
nsCOMPtr<nsIStyleSheet> sheet;
|
|
if (mRule) {
|
|
mRule->GetStyleSheet(*getter_AddRefs(sheet));
|
|
if (sheet) {
|
|
NS_IF_ADDREF(*aSheetURI = sheet->GetSheetURI());
|
|
NS_IF_ADDREF(*aBaseURI = sheet->GetBaseURI());
|
|
|
|
nsRefPtr<nsCSSStyleSheet> cssSheet(do_QueryObject(sheet));
|
|
if (cssSheet) {
|
|
NS_ADDREF(*aSheetPrincipal = cssSheet->Principal());
|
|
}
|
|
|
|
nsIDocument* document = sheet->GetOwningDocument();
|
|
if (document) {
|
|
NS_ADDREF(*aCSSLoader = document->CSSLoader());
|
|
}
|
|
}
|
|
}
|
|
|
|
nsresult result = NS_OK;
|
|
if (!*aSheetPrincipal) {
|
|
result = CallCreateInstance("@mozilla.org/nullprincipal;1",
|
|
aSheetPrincipal);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
DOMCSSDeclarationImpl::GetParentRule(nsIDOMCSSRule **aParent)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aParent);
|
|
|
|
if (!mRule) {
|
|
*aParent = nsnull;
|
|
return NS_OK;
|
|
}
|
|
|
|
return mRule->GetDOMRule(aParent);
|
|
}
|
|
|
|
nsresult
|
|
DOMCSSDeclarationImpl::DeclarationChanged()
|
|
{
|
|
NS_PRECONDITION(mRule,
|
|
"can only be called when |GetCSSDeclaration| returned a declaration");
|
|
|
|
nsCOMPtr<nsIDocument> owningDoc;
|
|
nsCOMPtr<nsIStyleSheet> sheet;
|
|
mRule->GetStyleSheet(*getter_AddRefs(sheet));
|
|
if (sheet) {
|
|
owningDoc = sheet->GetOwningDocument();
|
|
}
|
|
|
|
mozAutoDocUpdate updateBatch(owningDoc, UPDATE_STYLE, PR_TRUE);
|
|
|
|
nsCOMPtr<nsICSSStyleRule> oldRule = mRule;
|
|
mRule = oldRule->DeclarationChanged(PR_TRUE).get();
|
|
if (!mRule)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
nsrefcnt cnt = mRule->Release();
|
|
if (cnt == 0) {
|
|
NS_NOTREACHED("container didn't take ownership");
|
|
mRule = nsnull;
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
if (owningDoc) {
|
|
owningDoc->StyleRuleChanged(sheet, oldRule, mRule);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsIDocument*
|
|
DOMCSSDeclarationImpl::DocToUpdate()
|
|
{
|
|
return nsnull;
|
|
}
|
|
|
|
DOMCSSStyleRuleImpl::DOMCSSStyleRuleImpl(nsICSSStyleRule* aRule)
|
|
: mDOMDeclaration(aRule)
|
|
{
|
|
}
|
|
|
|
DOMCSSStyleRuleImpl::~DOMCSSStyleRuleImpl()
|
|
{
|
|
}
|
|
|
|
DOMCI_DATA(CSSStyleRule, DOMCSSStyleRuleImpl)
|
|
|
|
NS_INTERFACE_MAP_BEGIN(DOMCSSStyleRuleImpl)
|
|
NS_INTERFACE_MAP_ENTRY(nsICSSStyleRuleDOMWrapper)
|
|
NS_INTERFACE_MAP_ENTRY(nsIDOMCSSStyleRule)
|
|
NS_INTERFACE_MAP_ENTRY(nsIDOMCSSRule)
|
|
NS_INTERFACE_MAP_ENTRY(nsISupports)
|
|
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(CSSStyleRule)
|
|
NS_INTERFACE_MAP_END
|
|
|
|
NS_IMPL_ADDREF(DOMCSSStyleRuleImpl)
|
|
NS_IMPL_RELEASE(DOMCSSStyleRuleImpl)
|
|
|
|
NS_IMETHODIMP
|
|
DOMCSSStyleRuleImpl::GetType(PRUint16* aType)
|
|
{
|
|
*aType = nsIDOMCSSRule::STYLE_RULE;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
DOMCSSStyleRuleImpl::GetCssText(nsAString& aCssText)
|
|
{
|
|
if (!Rule()) {
|
|
aCssText.Truncate();
|
|
return NS_OK;
|
|
}
|
|
return Rule()->GetCssText(aCssText);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
DOMCSSStyleRuleImpl::SetCssText(const nsAString& aCssText)
|
|
{
|
|
if (!Rule()) {
|
|
return NS_OK;
|
|
}
|
|
return Rule()->SetCssText(aCssText);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
DOMCSSStyleRuleImpl::GetParentStyleSheet(nsIDOMCSSStyleSheet** aSheet)
|
|
{
|
|
if (!Rule()) {
|
|
*aSheet = nsnull;
|
|
return NS_OK;
|
|
}
|
|
nsRefPtr<nsCSSStyleSheet> sheet;
|
|
Rule()->GetParentStyleSheet(getter_AddRefs(sheet));
|
|
NS_IF_ADDREF(*aSheet = sheet);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
DOMCSSStyleRuleImpl::GetParentRule(nsIDOMCSSRule** aParentRule)
|
|
{
|
|
if (!Rule()) {
|
|
*aParentRule = nsnull;
|
|
return NS_OK;
|
|
}
|
|
nsCOMPtr<nsICSSGroupRule> rule;
|
|
Rule()->GetParentRule(getter_AddRefs(rule));
|
|
if (!rule) {
|
|
*aParentRule = nsnull;
|
|
return NS_OK;
|
|
}
|
|
return rule->GetDOMRule(aParentRule);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
DOMCSSStyleRuleImpl::GetSelectorText(nsAString& aSelectorText)
|
|
{
|
|
if (!Rule()) {
|
|
aSelectorText.Truncate();
|
|
return NS_OK;
|
|
}
|
|
return Rule()->GetSelectorText(aSelectorText);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
DOMCSSStyleRuleImpl::SetSelectorText(const nsAString& aSelectorText)
|
|
{
|
|
if (!Rule()) {
|
|
return NS_OK;
|
|
}
|
|
return Rule()->SetSelectorText(aSelectorText);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
DOMCSSStyleRuleImpl::GetStyle(nsIDOMCSSStyleDeclaration** aStyle)
|
|
{
|
|
*aStyle = &mDOMDeclaration;
|
|
NS_ADDREF(*aStyle);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
DOMCSSStyleRuleImpl::GetCSSStyleRule(nsICSSStyleRule **aResult)
|
|
{
|
|
*aResult = Rule();
|
|
NS_IF_ADDREF(*aResult);
|
|
return NS_OK;
|
|
}
|
|
|
|
// -- nsCSSStyleRule -------------------------------
|
|
|
|
class CSSStyleRuleImpl : public nsCSSRule,
|
|
public nsICSSStyleRule
|
|
{
|
|
public:
|
|
CSSStyleRuleImpl(nsCSSSelectorList* aSelector,
|
|
nsCSSDeclaration *aDeclaration);
|
|
private:
|
|
// for |Clone|
|
|
CSSStyleRuleImpl(const CSSStyleRuleImpl& aCopy);
|
|
// for |DeclarationChanged|
|
|
CSSStyleRuleImpl(CSSStyleRuleImpl& aCopy,
|
|
nsCSSDeclaration *aDeclaration);
|
|
public:
|
|
|
|
NS_DECL_ISUPPORTS_INHERITED
|
|
|
|
virtual nsCSSSelectorList* Selector(void);
|
|
|
|
virtual PRUint32 GetLineNumber(void) const;
|
|
virtual void SetLineNumber(PRUint32 aLineNumber);
|
|
|
|
virtual nsCSSDeclaration* GetDeclaration(void) const;
|
|
|
|
virtual nsIStyleRule* GetImportantRule(void);
|
|
virtual void RuleMatched();
|
|
|
|
NS_IMETHOD GetStyleSheet(nsIStyleSheet*& aSheet) const;
|
|
NS_IMETHOD SetStyleSheet(nsCSSStyleSheet* aSheet);
|
|
|
|
NS_IMETHOD SetParentRule(nsICSSGroupRule* aRule);
|
|
|
|
virtual nsresult GetCssText(nsAString& aCssText);
|
|
virtual nsresult SetCssText(const nsAString& aCssText);
|
|
virtual nsresult GetParentStyleSheet(nsCSSStyleSheet** aSheet);
|
|
virtual nsresult GetParentRule(nsICSSGroupRule** aParentRule);
|
|
virtual nsresult GetSelectorText(nsAString& aSelectorText);
|
|
virtual nsresult SetSelectorText(const nsAString& aSelectorText);
|
|
|
|
NS_IMETHOD GetType(PRInt32& aType) const;
|
|
NS_IMETHOD Clone(nsICSSRule*& aClone) const;
|
|
|
|
nsIDOMCSSRule* GetDOMRuleWeak(nsresult* aResult);
|
|
|
|
virtual already_AddRefed<nsICSSStyleRule>
|
|
DeclarationChanged(PRBool aHandleContainer);
|
|
|
|
// The new mapping function.
|
|
virtual void MapRuleInfoInto(nsRuleData* aRuleData);
|
|
|
|
#ifdef DEBUG
|
|
virtual void List(FILE* out = stdout, PRInt32 aIndent = 0) const;
|
|
#endif
|
|
|
|
private:
|
|
// These are not supported and are not implemented!
|
|
CSSStyleRuleImpl& operator=(const CSSStyleRuleImpl& aCopy);
|
|
|
|
protected:
|
|
virtual ~CSSStyleRuleImpl(void);
|
|
|
|
protected:
|
|
nsCSSSelectorList* mSelector; // null for style attribute
|
|
nsCSSDeclaration* mDeclaration;
|
|
nsRefPtr<nsCSSCompressedDataBlock> mNormalBlock;
|
|
CSSImportantRule* mImportantRule;
|
|
DOMCSSStyleRuleImpl* mDOMRule;
|
|
PRUint32 mLineNumber;
|
|
};
|
|
|
|
CSSStyleRuleImpl::CSSStyleRuleImpl(nsCSSSelectorList* aSelector,
|
|
nsCSSDeclaration* aDeclaration)
|
|
: nsCSSRule(),
|
|
mSelector(aSelector),
|
|
mDeclaration(aDeclaration),
|
|
mImportantRule(nsnull),
|
|
mDOMRule(nsnull),
|
|
mLineNumber(0)
|
|
{
|
|
mDeclaration->AddRef();
|
|
}
|
|
|
|
// for |Clone|
|
|
CSSStyleRuleImpl::CSSStyleRuleImpl(const CSSStyleRuleImpl& aCopy)
|
|
: nsCSSRule(aCopy),
|
|
mSelector(aCopy.mSelector ? aCopy.mSelector->Clone() : nsnull),
|
|
mDeclaration(aCopy.mDeclaration->Clone()),
|
|
mImportantRule(nsnull),
|
|
mDOMRule(nsnull),
|
|
mLineNumber(aCopy.mLineNumber)
|
|
{
|
|
if (mDeclaration)
|
|
mDeclaration->AddRef();
|
|
// rest is constructed lazily on existing data
|
|
}
|
|
|
|
// for |DeclarationChanged|
|
|
CSSStyleRuleImpl::CSSStyleRuleImpl(CSSStyleRuleImpl& aCopy,
|
|
nsCSSDeclaration* aDeclaration)
|
|
: nsCSSRule(aCopy),
|
|
mSelector(aCopy.mSelector),
|
|
mDeclaration(aDeclaration),
|
|
mImportantRule(nsnull),
|
|
mDOMRule(aCopy.mDOMRule),
|
|
mLineNumber(aCopy.mLineNumber)
|
|
{
|
|
// The DOM rule is replacing |aCopy| with |this|, so transfer
|
|
// the reverse pointer as well (and transfer ownership).
|
|
aCopy.mDOMRule = nsnull;
|
|
|
|
NS_ASSERTION(aDeclaration == aCopy.mDeclaration, "declaration mismatch");
|
|
// Transfer ownership of selector and declaration:
|
|
// NOTE that transferring ownership of the declaration relies on the
|
|
// code in RuleMatched caching what we need from mDeclaration so that
|
|
// mDeclaration is unused in CSSStyleRuleImpl::GetImportantRule,
|
|
// CSSStyleRuleImpl::MapRuleInfoInto, and
|
|
// CSSImportantRule::MapRuleInfoInto. This means that any style rule
|
|
// that has become part of the rule tree has already retrieved the
|
|
// necessary data blocks from its declaration, so any later
|
|
// MapRuleInfoInto calls (see stack in bug 209575; also needed for CSS
|
|
// Transitions) and GetImportantRule calls will also work.
|
|
aCopy.mSelector = nsnull;
|
|
aCopy.mDeclaration = nsnull;
|
|
}
|
|
|
|
|
|
CSSStyleRuleImpl::~CSSStyleRuleImpl(void)
|
|
{
|
|
if (mSelector) {
|
|
delete mSelector;
|
|
mSelector = nsnull;
|
|
}
|
|
if (nsnull != mDeclaration) {
|
|
mDeclaration->Release();
|
|
mDeclaration = nsnull;
|
|
}
|
|
if (nsnull != mImportantRule) {
|
|
NS_RELEASE(mImportantRule);
|
|
mImportantRule = nsnull;
|
|
}
|
|
if (mDOMRule) {
|
|
mDOMRule->DOMDeclaration()->DropReference();
|
|
NS_RELEASE(mDOMRule);
|
|
}
|
|
}
|
|
|
|
// QueryInterface implementation for CSSStyleRuleImpl
|
|
NS_INTERFACE_MAP_BEGIN(CSSStyleRuleImpl)
|
|
NS_INTERFACE_MAP_ENTRY(nsICSSStyleRule)
|
|
NS_INTERFACE_MAP_ENTRY(nsICSSRule)
|
|
NS_INTERFACE_MAP_ENTRY(nsIStyleRule)
|
|
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsICSSStyleRule)
|
|
NS_INTERFACE_MAP_END
|
|
|
|
NS_IMPL_ADDREF_INHERITED(CSSStyleRuleImpl, nsCSSRule)
|
|
NS_IMPL_RELEASE_INHERITED(CSSStyleRuleImpl, nsCSSRule)
|
|
|
|
nsCSSSelectorList* CSSStyleRuleImpl::Selector(void)
|
|
{
|
|
return mSelector;
|
|
}
|
|
|
|
PRUint32 CSSStyleRuleImpl::GetLineNumber(void) const
|
|
{
|
|
return mLineNumber;
|
|
}
|
|
|
|
void CSSStyleRuleImpl::SetLineNumber(PRUint32 aLineNumber)
|
|
{
|
|
mLineNumber = aLineNumber;
|
|
}
|
|
|
|
nsCSSDeclaration* CSSStyleRuleImpl::GetDeclaration(void) const
|
|
{
|
|
return mDeclaration;
|
|
}
|
|
|
|
nsIStyleRule* CSSStyleRuleImpl::GetImportantRule(void)
|
|
{
|
|
return mImportantRule;
|
|
}
|
|
|
|
/* virtual */ void
|
|
CSSStyleRuleImpl::RuleMatched()
|
|
{
|
|
if (mNormalBlock) {
|
|
// This method has already been called.
|
|
return;
|
|
}
|
|
NS_ABORT_IF_FALSE(!mImportantRule, "should not have important rule either");
|
|
|
|
mNormalBlock = mDeclaration->GetNormalBlock();
|
|
|
|
if (mDeclaration->HasImportantData()) {
|
|
mImportantRule = new CSSImportantRule(mDeclaration->GetImportantBlock());
|
|
NS_IF_ADDREF(mImportantRule);
|
|
}
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleRuleImpl::GetStyleSheet(nsIStyleSheet*& aSheet) const
|
|
{
|
|
// XXX What about inner, etc.
|
|
return nsCSSRule::GetStyleSheet(aSheet);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleRuleImpl::SetStyleSheet(nsCSSStyleSheet* aSheet)
|
|
{
|
|
return nsCSSRule::SetStyleSheet(aSheet);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleRuleImpl::SetParentRule(nsICSSGroupRule* aRule)
|
|
{
|
|
return nsCSSRule::SetParentRule(aRule);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleRuleImpl::GetType(PRInt32& aType) const
|
|
{
|
|
aType = nsICSSRule::STYLE_RULE;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
CSSStyleRuleImpl::Clone(nsICSSRule*& aClone) const
|
|
{
|
|
CSSStyleRuleImpl* clone = new CSSStyleRuleImpl(*this);
|
|
if (!clone || !clone->mDeclaration || (!clone->mSelector != !mSelector)) {
|
|
delete clone;
|
|
aClone = nsnull;
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
return CallQueryInterface(clone, &aClone);
|
|
}
|
|
|
|
nsIDOMCSSRule*
|
|
CSSStyleRuleImpl::GetDOMRuleWeak(nsresult *aResult)
|
|
{
|
|
*aResult = NS_OK;
|
|
if (!mSheet) {
|
|
// inline style rules aren't supposed to have a DOM rule object, only
|
|
// a declaration.
|
|
return nsnull;
|
|
}
|
|
if (!mDOMRule) {
|
|
mDOMRule = new DOMCSSStyleRuleImpl(this);
|
|
if (!mDOMRule) {
|
|
*aResult = NS_ERROR_OUT_OF_MEMORY;
|
|
return nsnull;
|
|
}
|
|
NS_ADDREF(mDOMRule);
|
|
}
|
|
return mDOMRule;
|
|
}
|
|
|
|
/* virtual */ already_AddRefed<nsICSSStyleRule>
|
|
CSSStyleRuleImpl::DeclarationChanged(PRBool aHandleContainer)
|
|
{
|
|
CSSStyleRuleImpl* clone = new CSSStyleRuleImpl(*this, mDeclaration);
|
|
if (!clone) {
|
|
return nsnull;
|
|
}
|
|
|
|
NS_ADDREF(clone); // for return
|
|
|
|
if (aHandleContainer) {
|
|
NS_ASSERTION(mSheet, "rule must be in a sheet");
|
|
if (mParentRule) {
|
|
mSheet->ReplaceRuleInGroup(mParentRule, this, clone);
|
|
} else {
|
|
mSheet->ReplaceStyleRule(this, clone);
|
|
}
|
|
}
|
|
|
|
return clone;
|
|
}
|
|
|
|
/* virtual */ void
|
|
CSSStyleRuleImpl::MapRuleInfoInto(nsRuleData* aRuleData)
|
|
{
|
|
NS_ABORT_IF_FALSE(mNormalBlock,
|
|
"somebody forgot to call nsICSSStyleRule::RuleMatched");
|
|
mNormalBlock->MapRuleInfoInto(aRuleData);
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
/* virtual */ void
|
|
CSSStyleRuleImpl::List(FILE* out, PRInt32 aIndent) const
|
|
{
|
|
// Indent
|
|
for (PRInt32 index = aIndent; --index >= 0; ) fputs(" ", out);
|
|
|
|
nsAutoString buffer;
|
|
if (mSelector)
|
|
mSelector->ToString(buffer, mSheet);
|
|
|
|
buffer.AppendLiteral(" ");
|
|
fputs(NS_LossyConvertUTF16toASCII(buffer).get(), out);
|
|
if (nsnull != mDeclaration) {
|
|
mDeclaration->List(out);
|
|
}
|
|
else {
|
|
fputs("{ null declaration }", out);
|
|
}
|
|
fputs("\n", out);
|
|
}
|
|
#endif
|
|
|
|
/* virtual */ nsresult
|
|
CSSStyleRuleImpl::GetCssText(nsAString& aCssText)
|
|
{
|
|
if (mSelector) {
|
|
mSelector->ToString(aCssText, mSheet);
|
|
aCssText.Append(PRUnichar(' '));
|
|
}
|
|
aCssText.Append(PRUnichar('{'));
|
|
aCssText.Append(PRUnichar(' '));
|
|
if (mDeclaration)
|
|
{
|
|
nsAutoString tempString;
|
|
mDeclaration->ToString( tempString );
|
|
aCssText.Append( tempString );
|
|
}
|
|
aCssText.Append(PRUnichar(' '));
|
|
aCssText.Append(PRUnichar('}'));
|
|
return NS_OK;
|
|
}
|
|
|
|
/* virtual */ nsresult
|
|
CSSStyleRuleImpl::SetCssText(const nsAString& aCssText)
|
|
{
|
|
// XXX TBI - need to re-parse rule & declaration
|
|
return NS_OK;
|
|
}
|
|
|
|
/* virtual */ nsresult
|
|
CSSStyleRuleImpl::GetParentStyleSheet(nsCSSStyleSheet** aSheet)
|
|
{
|
|
*aSheet = mSheet;
|
|
NS_IF_ADDREF(*aSheet);
|
|
return NS_OK;
|
|
}
|
|
|
|
/* virtual */ nsresult
|
|
CSSStyleRuleImpl::GetParentRule(nsICSSGroupRule** aParentRule)
|
|
{
|
|
*aParentRule = mParentRule;
|
|
NS_IF_ADDREF(*aParentRule);
|
|
return NS_OK;
|
|
}
|
|
|
|
/* virtual */ nsresult
|
|
CSSStyleRuleImpl::GetSelectorText(nsAString& aSelectorText)
|
|
{
|
|
if (mSelector)
|
|
mSelector->ToString(aSelectorText, mSheet);
|
|
else
|
|
aSelectorText.Truncate();
|
|
return NS_OK;
|
|
}
|
|
|
|
/* virtual */ nsresult
|
|
CSSStyleRuleImpl::SetSelectorText(const nsAString& aSelectorText)
|
|
{
|
|
// XXX TBI - get a parser and re-parse the selectors,
|
|
// XXX then need to re-compute the cascade
|
|
// XXX and dirty sheet
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
NS_NewCSSStyleRule(nsICSSStyleRule** aInstancePtrResult,
|
|
nsCSSSelectorList* aSelector,
|
|
nsCSSDeclaration* aDeclaration)
|
|
{
|
|
NS_PRECONDITION(aDeclaration, "must have a declaration");
|
|
CSSStyleRuleImpl *it = new CSSStyleRuleImpl(aSelector, aDeclaration);
|
|
if (!it) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
return CallQueryInterface(it, aInstancePtrResult);
|
|
}
|