2004-08-04 07:27:28 +04:00
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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// vim:cindent:tabstop=2:expandtab:shiftwidth=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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* L. David Baron <dbaron@dbaron.org>
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* Pierre Phaneuf <pp@ludusdesign.com>
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* Daniel Glazman <glazman@netscape.com>
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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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2006-03-25 08:47:31 +03:00
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/* representation of a CSS style sheet */
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2004-08-04 07:27:28 +04:00
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#ifndef nsCSSStyleSheet_h_
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#define nsCSSStyleSheet_h_
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2011-11-21 10:21:16 +04:00
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#include "mozilla/Attributes.h"
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2004-08-04 07:27:28 +04:00
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#include "nscore.h"
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#include "nsCOMPtr.h"
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2005-02-18 22:18:37 +03:00
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#include "nsAutoPtr.h"
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2010-05-12 00:41:47 +04:00
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#include "nsIStyleSheet.h"
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2004-08-04 07:27:28 +04:00
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#include "nsIDOMCSSStyleSheet.h"
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#include "nsICSSLoaderObserver.h"
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2005-10-16 00:21:20 +04:00
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#include "nsCOMArray.h"
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2011-10-28 11:35:45 +04:00
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#include "nsTArray.h"
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#include "nsString.h"
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2004-08-04 07:27:28 +04:00
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2010-05-12 00:41:47 +04:00
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class nsXMLNameSpaceMap;
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class nsCSSRuleProcessor;
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class nsMediaList;
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class nsIPrincipal;
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2004-08-04 07:27:28 +04:00
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class nsIURI;
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2005-03-30 04:36:57 +04:00
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class nsMediaList;
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2008-07-26 20:14:48 +04:00
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class nsMediaQueryResultCacheKey;
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2008-09-09 22:08:11 +04:00
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class nsCSSStyleSheet;
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2010-04-11 00:10:12 +04:00
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class nsPresContext;
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2010-11-09 05:48:59 +03:00
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template<class E, class A> class nsTArray;
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2004-08-04 07:27:28 +04:00
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2011-03-17 20:41:52 +03:00
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namespace mozilla {
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namespace css {
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2011-04-08 05:23:46 +04:00
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class Rule;
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2010-08-08 09:28:33 +04:00
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class GroupRule;
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2011-03-17 20:41:52 +03:00
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class ImportRule;
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}
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}
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2004-08-04 07:27:28 +04:00
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// -------------------------------
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// CSS Style Sheet Inner Data Container
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//
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class nsCSSStyleSheetInner {
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public:
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2010-01-07 16:51:16 +03:00
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friend class nsCSSStyleSheet;
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friend class nsCSSRuleProcessor;
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2010-05-12 00:41:47 +04:00
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friend nsresult NS_NewCSSStyleSheet(nsCSSStyleSheet** aInstancePtrResult);
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2010-01-07 16:51:16 +03:00
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private:
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2010-05-12 00:41:47 +04:00
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nsCSSStyleSheetInner(nsCSSStyleSheet* aPrimarySheet);
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2008-09-09 22:32:27 +04:00
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nsCSSStyleSheetInner(nsCSSStyleSheetInner& aCopy,
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nsCSSStyleSheet* aPrimarySheet);
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2008-10-16 00:24:45 +04:00
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~nsCSSStyleSheetInner();
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2004-08-04 07:27:28 +04:00
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2008-10-16 00:24:45 +04:00
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nsCSSStyleSheetInner* CloneFor(nsCSSStyleSheet* aPrimarySheet);
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2010-05-12 00:41:47 +04:00
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void AddSheet(nsCSSStyleSheet* aSheet);
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void RemoveSheet(nsCSSStyleSheet* aSheet);
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2004-08-04 07:27:28 +04:00
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2008-10-16 00:24:45 +04:00
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void RebuildNameSpaces();
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2004-08-04 07:27:28 +04:00
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2008-10-16 00:23:21 +04:00
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// Create a new namespace map
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nsresult CreateNamespaceMap();
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2012-01-03 06:19:14 +04:00
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size_t SizeOfIncludingThis(nsMallocSizeOfFun aMallocSizeOf) const;
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2010-05-12 00:41:47 +04:00
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nsAutoTArray<nsCSSStyleSheet*, 8> mSheets;
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2004-09-10 10:45:59 +04:00
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nsCOMPtr<nsIURI> mSheetURI; // for error reports, etc.
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2007-10-24 01:56:41 +04:00
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nsCOMPtr<nsIURI> mOriginalSheetURI; // for GetHref. Can be null.
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2004-09-10 10:45:59 +04:00
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nsCOMPtr<nsIURI> mBaseURI; // for resolving relative URIs
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2007-05-01 23:26:15 +04:00
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nsCOMPtr<nsIPrincipal> mPrincipal;
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2011-04-08 05:23:46 +04:00
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nsCOMArray<mozilla::css::Rule> mOrderedRules;
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2005-02-19 03:10:38 +03:00
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nsAutoPtr<nsXMLNameSpaceMap> mNameSpaceMap;
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2008-09-09 22:08:11 +04:00
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// Linked list of child sheets. This is al fundamentally broken, because
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// each of the child sheets has a unique parent... We can only hope (and
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// currently this is the case) that any time page JS can get ts hands on a
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// child sheet that means we've already ensured unique inners throughout its
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// parent chain and things are good.
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nsRefPtr<nsCSSStyleSheet> mFirstChild;
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2011-09-29 10:19:26 +04:00
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bool mComplete;
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2007-05-01 23:26:15 +04:00
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#ifdef DEBUG
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2011-09-29 10:19:26 +04:00
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bool mPrincipalSet;
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2007-05-01 23:26:15 +04:00
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#endif
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2004-08-04 07:27:28 +04:00
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};
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// -------------------------------
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// CSS Style Sheet
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//
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class CSSRuleListImpl;
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2008-09-09 22:08:11 +04:00
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struct ChildSheetListBuilder;
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2004-08-04 07:27:28 +04:00
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2010-05-12 00:41:47 +04:00
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// CID for the nsCSSStyleSheet class
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2010-05-18 08:00:39 +04:00
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// ca926f30-2a7e-477e-8467-803fb32af20a
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2010-05-12 00:41:47 +04:00
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#define NS_CSS_STYLE_SHEET_IMPL_CID \
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2010-05-18 08:00:39 +04:00
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{ 0xca926f30, 0x2a7e, 0x477e, \
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{ 0x84, 0x67, 0x80, 0x3f, 0xb3, 0x2a, 0xf2, 0x0a } }
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2010-05-12 00:41:47 +04:00
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2011-12-19 22:48:15 +04:00
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class nsCSSStyleSheet MOZ_FINAL : public nsIStyleSheet,
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public nsIDOMCSSStyleSheet,
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public nsICSSLoaderObserver
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2004-08-04 07:27:28 +04:00
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{
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public:
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nsCSSStyleSheet();
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NS_DECL_ISUPPORTS
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2010-05-12 00:41:47 +04:00
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NS_DECLARE_STATIC_IID_ACCESSOR(NS_CSS_STYLE_SHEET_IMPL_CID)
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2004-08-04 07:27:28 +04:00
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// nsIStyleSheet interface
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2010-05-18 08:00:39 +04:00
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virtual nsIURI* GetSheetURI() const;
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virtual nsIURI* GetBaseURI() const;
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2010-05-13 00:18:47 +04:00
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virtual void GetTitle(nsString& aTitle) const;
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virtual void GetType(nsString& aType) const;
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2011-09-29 10:19:26 +04:00
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virtual bool HasRules() const;
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virtual bool IsApplicable() const;
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virtual void SetEnabled(bool aEnabled);
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virtual bool IsComplete() const;
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2010-05-13 00:18:47 +04:00
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virtual void SetComplete();
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2010-05-18 08:00:39 +04:00
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virtual nsIStyleSheet* GetParentSheet() const; // may be null
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virtual nsIDocument* GetOwningDocument() const; // may be null
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2010-05-13 00:18:47 +04:00
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virtual void SetOwningDocument(nsIDocument* aDocument);
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2010-12-20 19:21:59 +03:00
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2011-08-25 00:44:35 +04:00
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// Find the ID of the owner inner window.
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PRUint64 FindOwningWindowInnerID() const;
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2004-08-04 07:27:28 +04:00
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#ifdef DEBUG
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virtual void List(FILE* out = stdout, PRInt32 aIndent = 0) const;
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#endif
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2010-05-12 00:59:25 +04:00
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2010-05-12 00:41:48 +04:00
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void AppendStyleSheet(nsCSSStyleSheet* aSheet);
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void InsertStyleSheetAt(nsCSSStyleSheet* aSheet, PRInt32 aIndex);
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2010-05-12 00:59:25 +04:00
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// XXX do these belong here or are they generic?
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2011-04-08 05:23:46 +04:00
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void PrependStyleRule(mozilla::css::Rule* aRule);
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void AppendStyleRule(mozilla::css::Rule* aRule);
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void ReplaceStyleRule(mozilla::css::Rule* aOld, mozilla::css::Rule* aNew);
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2010-05-12 00:59:25 +04:00
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2010-05-12 00:41:48 +04:00
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PRInt32 StyleRuleCount() const;
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2011-04-08 05:23:46 +04:00
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nsresult GetStyleRuleAt(PRInt32 aIndex, mozilla::css::Rule*& aRule) const;
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2010-05-12 00:59:25 +04:00
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2010-08-08 09:28:33 +04:00
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nsresult DeleteRuleFromGroup(mozilla::css::GroupRule* aGroup, PRUint32 aIndex);
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nsresult InsertRuleIntoGroup(const nsAString& aRule, mozilla::css::GroupRule* aGroup, PRUint32 aIndex, PRUint32* _retval);
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2011-04-08 05:23:46 +04:00
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nsresult ReplaceRuleInGroup(mozilla::css::GroupRule* aGroup, mozilla::css::Rule* aOld, mozilla::css::Rule* aNew);
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2010-05-12 00:59:25 +04:00
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2010-05-12 00:41:48 +04:00
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PRInt32 StyleSheetCount() const;
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2010-05-12 00:59:25 +04:00
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/**
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* SetURIs must be called on all sheets before parsing into them.
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* SetURIs may only be called while the sheet is 1) incomplete and 2)
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* has no rules in it
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*/
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2010-05-12 00:41:48 +04:00
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void SetURIs(nsIURI* aSheetURI, nsIURI* aOriginalSheetURI, nsIURI* aBaseURI);
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2010-05-12 00:59:25 +04:00
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/**
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* SetPrincipal should be called on all sheets before parsing into them.
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* This can only be called once with a non-null principal. Calling this with
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* a null pointer is allowed and is treated as a no-op.
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*/
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2010-05-12 00:41:48 +04:00
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void SetPrincipal(nsIPrincipal* aPrincipal);
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2010-05-12 00:59:25 +04:00
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// Principal() never returns a null pointer.
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2010-05-18 08:00:39 +04:00
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nsIPrincipal* Principal() const { return mInner->mPrincipal; }
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2010-05-12 00:59:25 +04:00
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2010-05-12 00:41:47 +04:00
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void SetTitle(const nsAString& aTitle) { mTitle = aTitle; }
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2010-05-12 00:41:48 +04:00
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void SetMedia(nsMediaList* aMedia);
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2010-05-12 00:41:47 +04:00
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void SetOwningNode(nsIDOMNode* aOwningNode) { mOwningNode = aOwningNode; /* Not ref counted */ }
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2010-05-12 00:59:25 +04:00
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2011-03-17 20:41:52 +03:00
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void SetOwnerRule(mozilla::css::ImportRule* aOwnerRule) { mOwnerRule = aOwnerRule; /* Not ref counted */ }
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mozilla::css::ImportRule* GetOwnerRule() const { return mOwnerRule; }
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2010-05-12 00:59:25 +04:00
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2010-05-18 08:00:39 +04:00
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nsXMLNameSpaceMap* GetNameSpaceMap() const { return mInner->mNameSpaceMap; }
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2010-05-12 00:59:25 +04:00
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2010-05-12 00:41:48 +04:00
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already_AddRefed<nsCSSStyleSheet> Clone(nsCSSStyleSheet* aCloneParent,
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2011-03-17 20:41:52 +03:00
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mozilla::css::ImportRule* aCloneOwnerRule,
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2010-05-12 00:41:48 +04:00
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nsIDocument* aCloneDocument,
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nsIDOMNode* aCloneOwningNode) const;
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2010-05-12 00:59:25 +04:00
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2011-09-29 10:19:26 +04:00
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bool IsModified() const { return mDirty; }
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2011-04-12 10:18:43 +04:00
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void SetModifiedByChildRule() {
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NS_ASSERTION(mDirty,
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"sheet must be marked dirty before handing out child rules");
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DidDirty();
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}
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2010-05-12 00:59:25 +04:00
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2010-05-12 00:41:48 +04:00
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nsresult AddRuleProcessor(nsCSSRuleProcessor* aProcessor);
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nsresult DropRuleProcessor(nsCSSRuleProcessor* aProcessor);
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2010-05-12 00:59:25 +04:00
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/**
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* Like the DOM insertRule() method, but doesn't do any security checks
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*/
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2010-05-12 00:41:48 +04:00
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nsresult InsertRuleInternal(const nsAString& aRule,
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PRUint32 aIndex, PRUint32* aReturn);
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2010-05-12 00:59:25 +04:00
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/* Get the URI this sheet was originally loaded from, if any. Can
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return null */
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2010-05-12 00:41:47 +04:00
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virtual nsIURI* GetOriginalURI() const;
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2004-08-04 07:27:28 +04:00
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// nsICSSLoaderObserver interface
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2011-09-29 10:19:26 +04:00
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NS_IMETHOD StyleSheetLoaded(nsCSSStyleSheet* aSheet, bool aWasAlternate,
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2005-09-12 22:41:15 +04:00
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nsresult aStatus);
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2009-12-31 18:56:33 +03:00
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enum EnsureUniqueInnerResult {
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// No work was needed to ensure a unique inner.
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eUniqueInner_AlreadyUnique,
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// A clone was done to ensure a unique inner (which means the style
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// rules in this sheet have changed).
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eUniqueInner_ClonedInner,
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// A clone was attempted, but it failed.
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eUniqueInner_CloneFailed
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};
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EnsureUniqueInnerResult EnsureUniqueInner();
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2004-08-04 07:27:28 +04:00
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2011-10-17 18:59:28 +04:00
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// Append all of this sheet's child sheets to aArray. Return true
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// on success and false on allocation failure.
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2011-09-29 10:19:26 +04:00
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bool AppendAllChildSheets(nsTArray<nsCSSStyleSheet*>& aArray);
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2009-12-31 18:56:33 +03:00
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2011-09-29 10:19:26 +04:00
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bool UseForPresentation(nsPresContext* aPresContext,
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2008-07-26 20:14:48 +04:00
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nsMediaQueryResultCacheKey& aKey) const;
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2004-08-04 07:27:28 +04:00
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// nsIDOMStyleSheet interface
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NS_DECL_NSIDOMSTYLESHEET
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// nsIDOMCSSStyleSheet interface
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NS_DECL_NSIDOMCSSSTYLESHEET
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2009-05-26 23:40:49 +04:00
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// Function used as a callback to rebuild our inner's child sheet
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// list after we clone a unique inner for ourselves.
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2011-09-29 10:19:26 +04:00
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static bool RebuildChildList(mozilla::css::Rule* aRule, void* aBuilder);
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2009-05-26 23:40:49 +04:00
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2012-01-03 06:19:14 +04:00
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size_t SizeOfIncludingThis(nsMallocSizeOfFun aMallocSizeOf) const;
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2004-08-04 07:27:28 +04:00
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private:
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nsCSSStyleSheet(const nsCSSStyleSheet& aCopy,
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2010-05-12 00:41:47 +04:00
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nsCSSStyleSheet* aParentToUse,
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2011-03-17 20:41:52 +03:00
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mozilla::css::ImportRule* aOwnerRuleToUse,
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2004-08-04 07:27:28 +04:00
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nsIDocument* aDocumentToUse,
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nsIDOMNode* aOwningNodeToUse);
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2010-05-12 00:41:47 +04:00
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2011-11-21 10:21:16 +04:00
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nsCSSStyleSheet(const nsCSSStyleSheet& aCopy) MOZ_DELETE;
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nsCSSStyleSheet& operator=(const nsCSSStyleSheet& aCopy) MOZ_DELETE;
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2004-08-04 07:27:28 +04:00
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protected:
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virtual ~nsCSSStyleSheet();
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void ClearRuleCascades();
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nsresult WillDirty();
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void DidDirty();
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2007-07-03 22:45:39 +04:00
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// Return success if the subject principal subsumes the principal of our
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// inner, error otherwise. This will also succeed if the subject has
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2011-12-30 21:35:39 +04:00
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// UniversalXPConnect.
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2007-07-03 22:45:39 +04:00
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nsresult SubjectSubsumesInnerPrincipal() const;
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2008-10-16 00:23:21 +04:00
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// Add the namespace mapping from this @namespace rule to our namespace map
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2011-04-08 05:23:46 +04:00
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nsresult RegisterNamespaceRule(mozilla::css::Rule* aRule);
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2008-10-16 00:23:21 +04:00
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2004-08-04 07:27:28 +04:00
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protected:
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nsString mTitle;
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2010-05-12 00:41:47 +04:00
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nsRefPtr<nsMediaList> mMedia;
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2008-09-09 22:08:11 +04:00
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nsRefPtr<nsCSSStyleSheet> mNext;
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2010-05-12 00:41:47 +04:00
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nsCSSStyleSheet* mParent; // weak ref
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2011-03-17 20:41:52 +03:00
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mozilla::css::ImportRule* mOwnerRule; // weak ref
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2004-08-04 07:27:28 +04:00
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CSSRuleListImpl* mRuleCollection;
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nsIDocument* mDocument; // weak ref; parents maintain this for their children
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nsIDOMNode* mOwningNode; // weak ref
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2011-09-29 10:19:26 +04:00
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bool mDisabled;
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bool mDirty; // has been modified
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2004-08-04 07:27:28 +04:00
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nsCSSStyleSheetInner* mInner;
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2009-02-03 17:42:18 +03:00
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nsAutoTArray<nsCSSRuleProcessor*, 8>* mRuleProcessors;
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2004-08-04 07:27:28 +04:00
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2005-03-30 04:36:57 +04:00
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friend class nsMediaList;
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2008-10-08 02:10:19 +04:00
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friend class nsCSSRuleProcessor;
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2010-05-12 00:41:47 +04:00
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friend nsresult NS_NewCSSStyleSheet(nsCSSStyleSheet** aInstancePtrResult);
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2008-09-09 22:08:11 +04:00
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friend struct ChildSheetListBuilder;
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2004-08-04 07:27:28 +04:00
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};
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2010-05-12 00:41:47 +04:00
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NS_DEFINE_STATIC_IID_ACCESSOR(nsCSSStyleSheet, NS_CSS_STYLE_SHEET_IMPL_CID)
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nsresult NS_NewCSSStyleSheet(nsCSSStyleSheet** aInstancePtrResult);
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2004-08-04 07:27:28 +04:00
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#endif /* !defined(nsCSSStyleSheet_h_) */
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