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94 lines
2.6 KiB
C++
94 lines
2.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsHTMLTags_h___
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#define nsHTMLTags_h___
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#include "nsString.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 int32_t(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 char16_t* 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 char16_t *GetStringValue(nsHTMLTag aEnum)
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{
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return aEnum <= eHTMLTag_unknown || aEnum > NS_HTML_TAG_MAX ?
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nullptr : 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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nullptr : 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 char16_t* const sTagUnicodeTable[];
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static int32_t 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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