351 lines
10 KiB
C++
351 lines
10 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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*
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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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#include "nscore.h"
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#include "nsINameSpaceManager.h"
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#include "nsAutoPtr.h"
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#include "nsINodeInfo.h"
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#include "nsCOMArray.h"
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#include "nsContentCreatorFunctions.h"
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#include "nsDoubleHashtable.h"
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#include "nsLayoutAtoms.h"
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#include "nsString.h"
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#ifdef MOZ_XTF
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#include "nsIServiceManager.h"
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#include "nsIXTFService.h"
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#include "nsContentUtils.h"
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static NS_DEFINE_CID(kXTFServiceCID, NS_XTFSERVICE_CID);
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#endif
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#define kXMLNSNameSpaceURI "http://www.w3.org/2000/xmlns/"
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#define kXMLNameSpaceURI "http://www.w3.org/XML/1998/namespace"
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#define kXHTMLNameSpaceURI "http://www.w3.org/1999/xhtml"
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#define kXLinkNameSpaceURI "http://www.w3.org/1999/xlink"
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#define kXSLTNameSpaceURI "http://www.w3.org/1999/XSL/Transform"
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#define kXBLNameSpaceURI "http://www.mozilla.org/xbl"
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#define kMathMLNameSpaceURI "http://www.w3.org/1998/Math/MathML"
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#define kRDFNameSpaceURI "http://www.w3.org/1999/02/22-rdf-syntax-ns#"
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#define kXULNameSpaceURI "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
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#define kSVGNameSpaceURI "http://www.w3.org/2000/svg"
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#define kXMLEventsNameSpaceURI "http://www.w3.org/2001/xml-events"
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#define kXHTML2UnofficialNameSpaceURI "http://www.w3.org/TR/xhtml2" // Will eventually change
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#define kRolesWAIUnofficialNameSpaceURI "http://www.w3.org/2005/01/wai-rdf/GUIRoleTaxonomy#" // Will eventually change
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#define kStatesWAIUnofficialNameSpaceURI "http://www.w3.org/2005/01/wai-rdf/GUIStateTaxonomy#" // Will eventually change
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class nsNameSpaceEntry : public PLDHashEntryHdr
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{
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public:
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nsNameSpaceEntry(const void* aKey) :
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mKey(NS_STATIC_CAST(const nsAString*, aKey))
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{
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}
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~nsNameSpaceEntry()
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{
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}
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const void* GetKey() const {
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return mKey;
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}
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static PLDHashNumber HashKey(const void* aKey) {
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return HashString(*NS_STATIC_CAST(const nsAString*, aKey));
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}
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PRBool MatchEntry(const void* aKey) const {
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return NS_STATIC_CAST(const nsAString*, aKey)->Equals(*mKey);
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}
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const nsAString* mKey;
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PRInt32 mNameSpaceID;
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};
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DECL_DHASH_WRAPPER(nsNameSpaceHashBase, nsNameSpaceEntry, nsAString&)
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DHASH_WRAPPER(nsNameSpaceHashBase, nsNameSpaceEntry, nsAString&)
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class nsNameSpaceHash : public nsNameSpaceHashBase
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{
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public:
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nsNameSpaceHash()
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{
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}
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~nsNameSpaceHash()
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{
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}
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nsNameSpaceEntry* LookupEntry(const nsAString& aUri)
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{
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return NS_STATIC_CAST(nsNameSpaceEntry*,
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PL_DHashTableOperate(&mHashTable, &aUri,
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PL_DHASH_LOOKUP));
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}
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};
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class NameSpaceManagerImpl : public nsINameSpaceManager {
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public:
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NameSpaceManagerImpl();
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virtual ~NameSpaceManagerImpl();
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NS_DECL_ISUPPORTS
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nsresult Init();
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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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PRBool HasElementCreator(PRInt32 aNameSpaceID);
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PRBool HasNameSpaceURI(PRInt32 aNameSpaceID);
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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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nsresult AddNameSpace(const nsAString& aURI, const PRInt32 aNameSpaceID);
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nsNameSpaceHash mURIToIDTable;
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nsStringArray mURIArray;
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};
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static NameSpaceManagerImpl* gNameSpaceManager = nsnull;
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NameSpaceManagerImpl::NameSpaceManagerImpl()
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{
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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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nsresult NameSpaceManagerImpl::Init()
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{
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nsresult rv = mURIToIDTable.Init(32);
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NS_ENSURE_SUCCESS(rv, rv);
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// Need to be ordered according to ID.
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AddNameSpace(NS_LITERAL_STRING(kXMLNSNameSpaceURI), kNameSpaceID_XMLNS);
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AddNameSpace(NS_LITERAL_STRING(kXMLNameSpaceURI), kNameSpaceID_XML);
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AddNameSpace(NS_LITERAL_STRING(kXHTMLNameSpaceURI), kNameSpaceID_XHTML);
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AddNameSpace(NS_LITERAL_STRING(kXLinkNameSpaceURI), kNameSpaceID_XLink);
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AddNameSpace(NS_LITERAL_STRING(kXSLTNameSpaceURI), kNameSpaceID_XSLT);
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AddNameSpace(NS_LITERAL_STRING(kXBLNameSpaceURI), kNameSpaceID_XBL);
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AddNameSpace(NS_LITERAL_STRING(kMathMLNameSpaceURI), kNameSpaceID_MathML);
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AddNameSpace(NS_LITERAL_STRING(kRDFNameSpaceURI), kNameSpaceID_RDF);
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AddNameSpace(NS_LITERAL_STRING(kXULNameSpaceURI), kNameSpaceID_XUL);
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AddNameSpace(NS_LITERAL_STRING(kSVGNameSpaceURI), kNameSpaceID_SVG);
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AddNameSpace(NS_LITERAL_STRING(kXMLEventsNameSpaceURI), kNameSpaceID_XMLEvents);
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AddNameSpace(NS_LITERAL_STRING(kXHTML2UnofficialNameSpaceURI), kNameSpaceID_XHTML2_Unofficial);
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AddNameSpace(NS_LITERAL_STRING(kRolesWAIUnofficialNameSpaceURI), kNameSpaceID_RolesWAI_Unofficial);
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AddNameSpace(NS_LITERAL_STRING(kStatesWAIUnofficialNameSpaceURI), kNameSpaceID_StatesWAI_Unofficial);
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return NS_OK;
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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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if (aURI.IsEmpty()) {
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aNameSpaceID = kNameSpaceID_None; // xmlns="", see bug 75700 for details
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return NS_OK;
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}
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nsNameSpaceEntry* entry = mURIToIDTable.GetEntry(aURI);
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if (entry) {
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aNameSpaceID = entry->mNameSpaceID;
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return NS_OK;
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}
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aNameSpaceID = mURIArray.Count() + 1; // id is index + 1
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nsresult rv = AddNameSpace(aURI, aNameSpaceID);
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if (NS_FAILED(rv)) {
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aNameSpaceID = kNameSpaceID_Unknown;
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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::GetNameSpaceURI(PRInt32 aNameSpaceID, nsAString& aURI)
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{
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PRInt32 index = aNameSpaceID - 1; // id is index + 1
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if (index < 0 || index >= mURIArray.Count()) {
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aURI.Truncate();
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return NS_ERROR_ILLEGAL_VALUE;
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}
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mURIArray.StringAt(index, aURI);
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return NS_OK;
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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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if (aURI.IsEmpty()) {
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*aNameSpaceID = kNameSpaceID_None; // xmlns="", see bug 75700 for details
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return NS_OK;
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}
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nsNameSpaceEntry* entry = mURIToIDTable.GetEntry(aURI);
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*aNameSpaceID = entry ? entry->mNameSpaceID : kNameSpaceID_Unknown;
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return NS_OK;
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}
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nsresult
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NS_NewElement(nsIContent** aResult, PRInt32 aElementType,
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nsINodeInfo* aNodeInfo)
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{
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if (aElementType == kNameSpaceID_XHTML) {
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return NS_NewHTMLElement(aResult, aNodeInfo);
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}
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#ifdef MOZ_XUL
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if (aElementType == kNameSpaceID_XUL) {
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return NS_NewXULElement(aResult, aNodeInfo);
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}
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#endif
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#ifdef MOZ_MATHML
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if (aElementType == kNameSpaceID_MathML) {
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return NS_NewMathMLElement(aResult, aNodeInfo);
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}
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#endif
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#ifdef MOZ_SVG
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if (aElementType == kNameSpaceID_SVG) {
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return NS_NewSVGElement(aResult, aNodeInfo);
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}
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#endif
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if (aElementType == kNameSpaceID_XMLEvents) {
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return NS_NewXMLEventsElement(aResult, aNodeInfo);
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}
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#ifdef MOZ_XTF
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if (aElementType > kNameSpaceID_LastBuiltin) {
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nsIXTFService* xtfService = nsContentUtils::GetXTFServiceWeakRef();
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NS_ASSERTION(xtfService, "could not get xtf service");
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if (xtfService &&
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NS_SUCCEEDED(xtfService->CreateElement(aResult, aNodeInfo)))
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return NS_OK;
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}
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#endif
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return NS_NewXMLElement(aResult, aNodeInfo);
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}
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PRBool
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NameSpaceManagerImpl::HasElementCreator(PRInt32 aNameSpaceID)
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{
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return aNameSpaceID == kNameSpaceID_XHTML ||
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#ifdef MOZ_XUL
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aNameSpaceID == kNameSpaceID_XUL ||
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#endif
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#ifdef MOZ_MATHML
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aNameSpaceID == kNameSpaceID_MathML ||
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#endif
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#ifdef MOZ_SVG
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aNameSpaceID == kNameSpaceID_SVG ||
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#endif
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aNameSpaceID == kNameSpaceID_XMLEvents ||
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PR_FALSE;
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}
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PRBool
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NameSpaceManagerImpl::HasNameSpaceURI(PRInt32 aNameSpaceID)
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{
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return (aNameSpaceID > kNameSpaceID_None &&
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aNameSpaceID <= mURIArray.Count());
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}
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nsresult NameSpaceManagerImpl::AddNameSpace(const nsAString& aURI,
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const PRInt32 aNameSpaceID)
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{
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NS_ASSERTION(aNameSpaceID - 1 == mURIArray.Count(),
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"BAD! AddNameSpace not called in right order!");
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if (!mURIArray.AppendString(aURI)) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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const nsString* uri = mURIArray.StringAt(aNameSpaceID - 1);
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nsNameSpaceEntry* entry = mURIToIDTable.AddEntry(*uri);
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if (!entry) {
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mURIArray.RemoveStringAt(aNameSpaceID - 1);
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return NS_ERROR_OUT_OF_MEMORY;
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}
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entry->mNameSpaceID = aNameSpaceID;
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return NS_OK;
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}
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nsresult
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NS_GetNameSpaceManager(nsINameSpaceManager** aInstancePtrResult)
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{
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NS_ENSURE_ARG_POINTER(aInstancePtrResult);
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if (!gNameSpaceManager) {
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nsCOMPtr<NameSpaceManagerImpl> manager = new NameSpaceManagerImpl();
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if (manager) {
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nsresult rv = manager->Init();
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if (NS_SUCCEEDED(rv)) {
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manager.swap(gNameSpaceManager);
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}
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}
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}
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*aInstancePtrResult = gNameSpaceManager;
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NS_ENSURE_TRUE(gNameSpaceManager, NS_ERROR_OUT_OF_MEMORY);
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NS_ADDREF(*aInstancePtrResult);
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return NS_OK;
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}
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void
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NS_NameSpaceManagerShutdown()
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{
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NS_IF_RELEASE(gNameSpaceManager);
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}
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