577 lines
17 KiB
C++
577 lines
17 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: NPL 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 Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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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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*
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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 the GNU General Public License Version 2 or later (the "GPL"), or
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* 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 NPL, 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 NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nscore.h"
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#include "nsINameSpaceManager.h"
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#include "nsINameSpace.h"
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#include "nsISupportsArray.h"
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#include "nsIElementFactory.h"
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#include "nsIServiceManager.h"
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#include "nsHashtable.h"
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#include "nsVoidArray.h"
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#include "nsLayoutAtoms.h"
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#include "nsString.h"
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#include "nsCRT.h"
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#include "nsContentCID.h"
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extern nsresult NS_NewXMLElementFactory(nsIElementFactory** aResult);
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static const char kXMLNSNameSpaceURI[] = "http://www.w3.org/2000/xmlns/";
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static const char kXMLNameSpaceURI[] = "http://www.w3.org/XML/1998/namespace";
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static const char kHTMLNameSpaceURI[] = "http://www.w3.org/TR/REC-html40"; // XXX?? "urn:w3-org-ns:HTML"??
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// XXX To be removed: Bug 7834 ---
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static const char kXHTMLNameSpaceURI[] = "http://www.w3.org/1999/xhtml";
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static const char kXLinkNameSpaceURI[] = "http://www.w3.org/1999/xlink";
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static const char kXSLTNameSpaceURI[] = "http://www.w3.org/1999/XSL/Transform";
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static const char kXBLNameSpaceURI[] = "http://www.mozilla.org/xbl";
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static const char kMathMLNameSpaceURI[] = "http://www.w3.org/1998/Math/MathML";
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//-----------------------------------------------------------
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// Name Space ID table support
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static PRBool gNameSpaceManagerIsInitialized = PR_FALSE;
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static nsHashtable* gURIToIDTable;
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static nsVoidArray* gURIArray;
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static nsISupportsArray* gElementFactoryArray;
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#ifdef NS_DEBUG
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static PRBool gNameSpaceManagerWasShutDown = PR_FALSE;
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#endif
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static void InitializeNameSpaceManager()
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{
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if (gNameSpaceManagerIsInitialized) {
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return;
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}
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NS_ASSERTION(nsnull == gURIToIDTable, "already have URI table");
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NS_ASSERTION(nsnull == gURIArray, "already have URI array");
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gURIToIDTable = new nsHashtable();
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gURIArray = new nsVoidArray();
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nsString* xmlns = new nsString( NS_ConvertASCIItoUCS2(kXMLNSNameSpaceURI) );
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nsString* xml = new nsString( NS_ConvertASCIItoUCS2(kXMLNameSpaceURI) );
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nsString* xhtml = new nsString( NS_ConvertASCIItoUCS2(kXHTMLNameSpaceURI) );
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nsString* xlink = new nsString( NS_ConvertASCIItoUCS2(kXLinkNameSpaceURI) );
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nsString* html = new nsString( NS_ConvertASCIItoUCS2(kHTMLNameSpaceURI) );
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nsString* xslt = new nsString( NS_ConvertASCIItoUCS2(kXSLTNameSpaceURI) );
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nsString* xbl = new nsString(NS_ConvertASCIItoUCS2(kXBLNameSpaceURI));
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nsString* mathml = new nsString(NS_ConvertASCIItoUCS2(kMathMLNameSpaceURI));
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gURIArray->AppendElement(xmlns); // ordering here needs to match IDs
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gURIArray->AppendElement(xml);
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gURIArray->AppendElement(xhtml);
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gURIArray->AppendElement(xlink);
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gURIArray->AppendElement(html);
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gURIArray->AppendElement(xslt);
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gURIArray->AppendElement(xbl);
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gURIArray->AppendElement(mathml);
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nsStringKey xmlnsKey(*xmlns);
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nsStringKey xmlKey(*xml);
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nsStringKey xhtmlKey(*xhtml);
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nsStringKey xlinkKey(*xlink);
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nsStringKey htmlKey(*html);
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nsStringKey xsltKey(*xslt);
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nsStringKey xblKey(*xbl);
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nsStringKey mathmlKey(*mathml);
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gURIToIDTable->Put(&xmlnsKey, (void*)kNameSpaceID_XMLNS);
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gURIToIDTable->Put(&xmlKey, (void*)kNameSpaceID_XML);
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gURIToIDTable->Put(&xhtmlKey, (void*)kNameSpaceID_HTML);
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gURIToIDTable->Put(&xlinkKey, (void*)kNameSpaceID_XLink);
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gURIToIDTable->Put(&htmlKey, (void*)kNameSpaceID_HTML);
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gURIToIDTable->Put(&xsltKey, (void*)kNameSpaceID_XSLT);
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gURIToIDTable->Put(&xblKey, (void*)kNameSpaceID_XBL);
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gURIToIDTable->Put(&mathmlKey, (void*)kNameSpaceID_MathML);
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NS_NewISupportsArray(&gElementFactoryArray);
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NS_ASSERTION(nsnull != gURIToIDTable, "no URI table");
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NS_ASSERTION(nsnull != gURIArray, "no URI array");
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NS_ASSERTION(nsnull != gElementFactoryArray, "no element factory array");
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gNameSpaceManagerIsInitialized = PR_TRUE;
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}
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void NS_NameSpaceManagerShutdown()
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{
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delete gURIToIDTable;
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PRInt32 index = gURIArray->Count();
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while (0 < index--) {
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nsString* str = (nsString*)gURIArray->ElementAt(index);
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delete str;
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}
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delete gURIArray;
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gURIToIDTable = nsnull;
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gURIArray = nsnull;
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NS_IF_RELEASE(gElementFactoryArray);
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#ifdef NS_DEBUG
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gNameSpaceManagerWasShutDown = PR_TRUE;
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#endif
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}
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static PRInt32 FindNameSpaceID(const nsAString& aURI)
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{
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NS_ASSERTION(nsnull != gURIToIDTable, "no URI table");
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nsStringKey key(aURI);
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void* value = gURIToIDTable->Get(&key);
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if (nsnull != value) {
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return NS_PTR_TO_INT32(value);
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}
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return kNameSpaceID_Unknown;
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}
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static const nsString* FindNameSpaceURI(PRInt32 aID)
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{
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NS_ASSERTION(nsnull != gURIArray, "no URI array");
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return (const nsString*)gURIArray->SafeElementAt(aID - 1);
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}
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//-----------------------------------------------------------
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// Name Space
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class NameSpaceImpl : public nsINameSpace {
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public:
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NameSpaceImpl(nsINameSpaceManager* aManager,
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NameSpaceImpl* aParent,
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nsIAtom* aPrefix,
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const nsAString& aURI);
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NameSpaceImpl(nsINameSpaceManager* aManager,
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NameSpaceImpl* aParent,
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nsIAtom* aPrefix,
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PRInt32 aNameSpaceID);
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virtual ~NameSpaceImpl();
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NS_DECL_ISUPPORTS
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NS_IMETHOD GetNameSpaceManager(nsINameSpaceManager*& aManager) const;
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NS_IMETHOD GetNameSpaceID(PRInt32& aID) const;
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NS_IMETHOD GetNameSpaceURI(nsAString& aURI) const;
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NS_IMETHOD GetNameSpacePrefix(nsIAtom*& aPrefix) const;
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NS_IMETHOD GetParentNameSpace(nsINameSpace*& aParent) const;
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NS_IMETHOD FindNameSpace(nsIAtom* aPrefix, nsINameSpace*& aNameSpace) const;
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NS_IMETHOD FindNameSpaceID(nsIAtom* aPrefix, PRInt32& aNameSpaceID) const;
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NS_IMETHOD FindNameSpacePrefix(PRInt32 aNameSpaceID, nsIAtom*& aPrefix) const;
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NS_IMETHOD CreateChildNameSpace(nsIAtom* aPrefix, const nsAString& aURI,
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nsINameSpace*& aChildNameSpace);
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NS_IMETHOD CreateChildNameSpace(nsIAtom* aPrefix, PRInt32 aNameSpaceID,
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nsINameSpace*& aChildNameSpace);
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private:
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// These are not supported and are not implemented!
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NameSpaceImpl(const NameSpaceImpl& aCopy);
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NameSpaceImpl& operator=(const NameSpaceImpl& aCopy);
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public:
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nsINameSpaceManager* mManager;
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NameSpaceImpl* mParent;
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nsIAtom* mPrefix;
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PRInt32 mID;
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};
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NameSpaceImpl::NameSpaceImpl(nsINameSpaceManager* aManager,
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NameSpaceImpl* aParent,
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nsIAtom* aPrefix,
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const nsAString& aURI)
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: mManager(aManager),
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mParent(aParent),
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mPrefix(aPrefix)
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{
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NS_ASSERTION(nsnull != aManager, "null namespace manager");
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NS_INIT_REFCNT();
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NS_ADDREF(mManager);
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NS_IF_ADDREF(mParent);
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NS_IF_ADDREF(mPrefix);
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mManager->RegisterNameSpace(aURI, mID);
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}
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NameSpaceImpl::NameSpaceImpl(nsINameSpaceManager* aManager,
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NameSpaceImpl* aParent,
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nsIAtom* aPrefix,
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PRInt32 aNameSpaceID)
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: mManager(aManager),
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mParent(aParent),
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mPrefix(aPrefix),
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mID(aNameSpaceID)
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{
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NS_ASSERTION(nsnull != aManager, "null namespace manager");
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NS_INIT_REFCNT();
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NS_ADDREF(mManager);
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NS_IF_ADDREF(mParent);
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NS_IF_ADDREF(mPrefix);
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}
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NameSpaceImpl::~NameSpaceImpl()
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{
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NS_RELEASE(mManager);
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NS_IF_RELEASE(mParent);
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NS_IF_RELEASE(mPrefix);
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}
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NS_IMPL_ISUPPORTS1(NameSpaceImpl, nsINameSpace)
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NS_IMETHODIMP
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NameSpaceImpl::GetNameSpaceManager(nsINameSpaceManager*& aManager) const
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{
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NS_ASSERTION(nsnull != aManager, "null namespace manager");
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aManager = mManager;
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NS_ADDREF(aManager);
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return NS_OK;
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}
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NS_IMETHODIMP
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NameSpaceImpl::GetNameSpaceID(PRInt32& aID) const
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{
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aID = mID;
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return NS_OK;
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}
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NS_IMETHODIMP
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NameSpaceImpl::GetNameSpaceURI(nsAString& aURI) const
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{
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NS_ASSERTION(nsnull != mManager, "null namespace manager");
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return mManager->GetNameSpaceURI(mID, aURI);
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}
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NS_IMETHODIMP
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NameSpaceImpl::GetNameSpacePrefix(nsIAtom*& aPrefix) const
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{
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aPrefix = mPrefix;
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NS_IF_ADDREF(aPrefix);
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return NS_OK;
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}
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NS_IMETHODIMP
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NameSpaceImpl::GetParentNameSpace(nsINameSpace*& aParent) const
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{
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aParent = mParent;
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NS_IF_ADDREF(aParent);
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return NS_OK;
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}
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NS_IMETHODIMP
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NameSpaceImpl::FindNameSpace(nsIAtom* aPrefix, nsINameSpace*& aNameSpace) const
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{
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const NameSpaceImpl* nameSpace = this;
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do {
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if (aPrefix == nameSpace->mPrefix) {
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aNameSpace = (nsINameSpace*)nameSpace;
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NS_ADDREF(aNameSpace);
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return NS_OK;
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}
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nameSpace = nameSpace->mParent;
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}
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while (nsnull != nameSpace);
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aNameSpace = nsnull;
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return NS_ERROR_ILLEGAL_VALUE;
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}
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NS_IMETHODIMP
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NameSpaceImpl::FindNameSpaceID(nsIAtom* aPrefix, PRInt32& aNameSpaceID) const
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{
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const NameSpaceImpl* nameSpace = this;
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do {
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if (aPrefix == nameSpace->mPrefix) {
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aNameSpaceID = nameSpace->mID;
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return NS_OK;
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}
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nameSpace = nameSpace->mParent;
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} while (nsnull != nameSpace);
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if (nsnull == aPrefix) {
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aNameSpaceID = kNameSpaceID_None;
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}
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else {
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aNameSpaceID = kNameSpaceID_Unknown;
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}
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return NS_ERROR_ILLEGAL_VALUE;
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}
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NS_IMETHODIMP
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NameSpaceImpl::FindNameSpacePrefix(PRInt32 aNameSpaceID, nsIAtom*& aPrefix) const
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{
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const NameSpaceImpl* nameSpace = this;
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do {
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if (aNameSpaceID == nameSpace->mID) {
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aPrefix = nameSpace->mPrefix;
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NS_IF_ADDREF(aPrefix);
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return NS_OK;
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}
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nameSpace = nameSpace->mParent;
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}
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while (nsnull != nameSpace);
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aPrefix = nsnull;
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return NS_ERROR_ILLEGAL_VALUE;
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}
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NS_IMETHODIMP
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NameSpaceImpl::CreateChildNameSpace(nsIAtom* aPrefix, const nsAString& aURI,
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nsINameSpace*& aChildNameSpace)
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{
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NameSpaceImpl* child = new NameSpaceImpl(mManager, this, aPrefix, aURI);
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if (child) {
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return child->QueryInterface(NS_GET_IID(nsINameSpace), (void**)&aChildNameSpace);
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}
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aChildNameSpace = nsnull;
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return NS_ERROR_OUT_OF_MEMORY;
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}
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NS_IMETHODIMP
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NameSpaceImpl::CreateChildNameSpace(nsIAtom* aPrefix, PRInt32 aNameSpaceID,
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nsINameSpace*& aChildNameSpace)
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{
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if (FindNameSpaceURI(aNameSpaceID)) {
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NameSpaceImpl* child = new NameSpaceImpl(mManager, this, aPrefix, aNameSpaceID);
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if (child) {
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return child->QueryInterface(NS_GET_IID(nsINameSpace), (void**)&aChildNameSpace);
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}
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aChildNameSpace = nsnull;
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return NS_ERROR_OUT_OF_MEMORY;
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}
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aChildNameSpace = nsnull;
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return NS_ERROR_ILLEGAL_VALUE;
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}
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//-----------------------------------------------------------
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// Name Space Manager
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class NameSpaceManagerImpl : public nsINameSpaceManager {
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public:
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NameSpaceManagerImpl();
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NS_DECL_ISUPPORTS
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NS_IMETHOD CreateRootNameSpace(nsINameSpace*& aRootNameSpace);
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NS_IMETHOD RegisterNameSpace(const nsAString& aURI,
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PRInt32& aNameSpaceID);
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NS_IMETHOD GetNameSpaceURI(PRInt32 aNameSpaceID, nsAString& aURI);
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NS_IMETHOD GetNameSpaceID(const nsAString& aURI,
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PRInt32& aNameSpaceID);
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NS_IMETHOD GetElementFactory(PRInt32 aNameSpaceID,
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nsIElementFactory **aElementFactory);
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private:
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// These are not supported and are not implemented!
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NameSpaceManagerImpl(const NameSpaceManagerImpl& aCopy);
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NameSpaceManagerImpl& operator=(const NameSpaceManagerImpl& aCopy);
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protected:
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virtual ~NameSpaceManagerImpl();
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};
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NameSpaceManagerImpl::NameSpaceManagerImpl()
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{
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NS_ASSERTION(!gNameSpaceManagerWasShutDown,
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"Namespace manager used past content module shutdown!!!");
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NS_INIT_REFCNT();
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InitializeNameSpaceManager();
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}
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NameSpaceManagerImpl::~NameSpaceManagerImpl()
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{
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}
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NS_IMPL_ISUPPORTS1(NameSpaceManagerImpl, nsINameSpaceManager)
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NS_IMETHODIMP
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NameSpaceManagerImpl::CreateRootNameSpace(nsINameSpace*& aRootNameSpace)
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{
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NS_ASSERTION(!gNameSpaceManagerWasShutDown,
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"Namespace manager used past content module shutdown!!!");
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nsresult rv = NS_ERROR_OUT_OF_MEMORY;
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aRootNameSpace = nsnull;
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NameSpaceImpl* xmlns = new NameSpaceImpl(this, nsnull, nsLayoutAtoms::xmlnsNameSpace, kNameSpaceID_XMLNS);
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if (nsnull != xmlns) {
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NameSpaceImpl* xml = new NameSpaceImpl(this, xmlns, nsLayoutAtoms::xmlNameSpace, kNameSpaceID_XML);
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if (nsnull != xml) {
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rv = xml->QueryInterface(NS_GET_IID(nsINameSpace), (void**)&aRootNameSpace);
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}
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else {
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delete xmlns;
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}
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}
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return rv;
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}
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NS_IMETHODIMP
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NameSpaceManagerImpl::RegisterNameSpace(const nsAString& aURI,
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PRInt32& aNameSpaceID)
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{
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NS_ASSERTION(!gNameSpaceManagerWasShutDown,
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"Namespace manager used past content module shutdown!!!");
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PRInt32 id = FindNameSpaceID(aURI);
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if (kNameSpaceID_Unknown == id) {
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if (aURI.IsEmpty()) {
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id = kNameSpaceID_None; // xmlns="", see bug 75700 for details
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} else {
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nsString* uri = new nsString(aURI);
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if (!uri)
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return NS_ERROR_OUT_OF_MEMORY;
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gURIArray->AppendElement(uri);
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id = gURIArray->Count(); // id is index + 1
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nsStringKey key(*uri);
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gURIToIDTable->Put(&key, (void*)id);
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}
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}
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aNameSpaceID = id;
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return NS_OK;
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}
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NS_IMETHODIMP
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NameSpaceManagerImpl::GetNameSpaceURI(PRInt32 aNameSpaceID, nsAString& aURI)
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{
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NS_ASSERTION(!gNameSpaceManagerWasShutDown,
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"Namespace manager used past content module shutdown!!!");
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const nsString* result = FindNameSpaceURI(aNameSpaceID);
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if (nsnull != result) {
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aURI = *result;
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return NS_OK;
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}
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aURI.Truncate();
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return NS_ERROR_ILLEGAL_VALUE;
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}
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NS_IMETHODIMP
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NameSpaceManagerImpl::GetNameSpaceID(const nsAString& aURI, PRInt32& aNameSpaceID)
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{
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NS_ASSERTION(!gNameSpaceManagerWasShutDown,
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"Namespace manager used past content module shutdown!!!");
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aNameSpaceID = FindNameSpaceID(aURI);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
NameSpaceManagerImpl::GetElementFactory(PRInt32 aNameSpaceID,
|
|
nsIElementFactory **aElementFactory)
|
|
{
|
|
NS_ASSERTION(!gNameSpaceManagerWasShutDown,
|
|
"Namespace manager used past content module shutdown!!!");
|
|
|
|
*aElementFactory = nsnull;
|
|
|
|
NS_ENSURE_TRUE(gElementFactoryArray, NS_ERROR_NOT_INITIALIZED);
|
|
NS_ENSURE_TRUE(aNameSpaceID >= 0, NS_ERROR_ILLEGAL_VALUE);
|
|
|
|
gElementFactoryArray->QueryElementAt(aNameSpaceID,
|
|
NS_GET_IID(nsIElementFactory),
|
|
(void **)aElementFactory);
|
|
|
|
if (*aElementFactory) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsAutoString uri;
|
|
|
|
GetNameSpaceURI(aNameSpaceID, uri);
|
|
|
|
nsCOMPtr<nsIElementFactory> ef;
|
|
|
|
if (!uri.IsEmpty()) {
|
|
nsCAutoString contract_id(NS_ELEMENT_FACTORY_CONTRACTID_PREFIX);
|
|
contract_id.Append(NS_ConvertUCS2toUTF8(uri));
|
|
|
|
ef = do_GetService(contract_id.get());
|
|
}
|
|
|
|
if (!ef) {
|
|
nsresult rv = NS_NewXMLElementFactory(getter_AddRefs(ef));
|
|
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
PRUint32 count = 0;
|
|
gElementFactoryArray->Count(&count);
|
|
|
|
if ((PRUint32)aNameSpaceID < count) {
|
|
gElementFactoryArray->ReplaceElementAt(ef, aNameSpaceID);
|
|
} else {
|
|
// This sucks, simply doing an InsertElementAt() should IMNSHO
|
|
// automatically grow the array and insert null's as needed to
|
|
// fill up the array!?!!
|
|
|
|
for (PRInt32 i = count; i < aNameSpaceID; i++) {
|
|
gElementFactoryArray->AppendElement(nsnull);
|
|
}
|
|
|
|
gElementFactoryArray->AppendElement(ef);
|
|
}
|
|
|
|
*aElementFactory = ef;
|
|
NS_ADDREF(*aElementFactory);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
NS_NewNameSpaceManager(nsINameSpaceManager** aInstancePtrResult)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aInstancePtrResult);
|
|
|
|
*aInstancePtrResult = new NameSpaceManagerImpl();
|
|
|
|
if (!*aInstancePtrResult) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
NS_ADDREF(*aInstancePtrResult);
|
|
|
|
return NS_OK;
|
|
}
|