зеркало из https://github.com/mozilla/gecko-dev.git
126 строки
4.1 KiB
C++
126 строки
4.1 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 Communicator client 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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#ifndef nsHTMLTags_h___
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#define nsHTMLTags_h___
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#include "nsStringGlue.h"
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#include "plhash.h"
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class nsIAtom;
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/*
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Declare the enum list using the magic of preprocessing
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enum values are "eHTMLTag_foo" (where foo is the tag)
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To change the list of tags, see nsHTMLTagList.h
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*/
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#define HTML_TAG(_tag, _classname) eHTMLTag_##_tag,
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#define HTML_HTMLELEMENT_TAG(_tag) eHTMLTag_##_tag,
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#define HTML_OTHER(_tag) eHTMLTag_##_tag,
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enum nsHTMLTag {
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/* this enum must be first and must be zero */
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eHTMLTag_unknown = 0,
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#include "nsHTMLTagList.h"
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/* can't be moved into nsHTMLTagList since gcc3.4 doesn't like a
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comma at the end of enum list*/
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eHTMLTag_userdefined
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};
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#undef HTML_TAG
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#undef HTML_HTMLELEMENT_TAG
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#undef HTML_OTHER
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// All tags before eHTMLTag_text are HTML tags
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#define NS_HTML_TAG_MAX PRInt32(eHTMLTag_text - 1)
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class nsHTMLTags {
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public:
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static nsresult AddRefTable(void);
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static void ReleaseTable(void);
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// Functions for converting string or atom to id
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static nsHTMLTag LookupTag(const nsAString& aTagName);
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static nsHTMLTag CaseSensitiveLookupTag(const PRUnichar* aTagName)
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{
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NS_ASSERTION(gTagTable, "no lookup table, needs addref");
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NS_ASSERTION(aTagName, "null tagname!");
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void* tag = PL_HashTableLookupConst(gTagTable, aTagName);
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return tag ? (nsHTMLTag)NS_PTR_TO_INT32(tag) : eHTMLTag_userdefined;
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}
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static nsHTMLTag CaseSensitiveLookupTag(nsIAtom* aTagName)
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{
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NS_ASSERTION(gTagAtomTable, "no lookup table, needs addref");
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NS_ASSERTION(aTagName, "null tagname!");
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void* tag = PL_HashTableLookupConst(gTagAtomTable, aTagName);
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return tag ? (nsHTMLTag)NS_PTR_TO_INT32(tag) : eHTMLTag_userdefined;
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}
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// Functions for converting an id to a string or atom
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static const PRUnichar *GetStringValue(nsHTMLTag aEnum)
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{
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return aEnum <= eHTMLTag_unknown || aEnum > NS_HTML_TAG_MAX ?
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nsnull : sTagUnicodeTable[aEnum - 1];
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}
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static nsIAtom *GetAtom(nsHTMLTag aEnum)
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{
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return aEnum <= eHTMLTag_unknown || aEnum > NS_HTML_TAG_MAX ?
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nsnull : sTagAtomTable[aEnum - 1];
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}
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#ifdef DEBUG
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static void TestTagTable();
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#endif
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private:
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static nsIAtom* sTagAtomTable[eHTMLTag_userdefined - 1];
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static const PRUnichar* const sTagUnicodeTable[];
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static PRInt32 gTableRefCount;
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static PLHashTable* gTagTable;
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static PLHashTable* gTagAtomTable;
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};
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#define eHTMLTags nsHTMLTag
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#endif /* nsHTMLTags_h___ */
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