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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsHTMLTags_h___
#define nsHTMLTags_h___
#include "nsString.h"
#include "plhash.h"
class nsIAtom;
/*
Declare the enum list using the magic of preprocessing
enum values are "eHTMLTag_foo" (where foo is the tag)
To change the list of tags, see nsHTMLTagList.h
*/
#define HTML_TAG(_tag, _classname) eHTMLTag_##_tag,
#define HTML_HTMLELEMENT_TAG(_tag) eHTMLTag_##_tag,
#define HTML_OTHER(_tag) eHTMLTag_##_tag,
enum nsHTMLTag {
/* this enum must be first and must be zero */
eHTMLTag_unknown = 0,
#include "nsHTMLTagList.h"
/* can't be moved into nsHTMLTagList since gcc3.4 doesn't like a
comma at the end of enum list*/
eHTMLTag_userdefined
};
#undef HTML_TAG
#undef HTML_HTMLELEMENT_TAG
#undef HTML_OTHER
// All tags before eHTMLTag_text are HTML tags
#define NS_HTML_TAG_MAX int32_t(eHTMLTag_text - 1)
class nsHTMLTags {
public:
static void RegisterAtoms(void);
static nsresult AddRefTable(void);
static void ReleaseTable(void);
// Functions for converting string or atom to id
static nsHTMLTag LookupTag(const nsAString& aTagName);
static nsHTMLTag CaseSensitiveLookupTag(const char16_t* aTagName)
{
NS_ASSERTION(gTagTable, "no lookup table, needs addref");
NS_ASSERTION(aTagName, "null tagname!");
void* tag = PL_HashTableLookupConst(gTagTable, aTagName);
return tag ? (nsHTMLTag)NS_PTR_TO_INT32(tag) : eHTMLTag_userdefined;
}
static nsHTMLTag CaseSensitiveLookupTag(nsIAtom* aTagName)
{
NS_ASSERTION(gTagAtomTable, "no lookup table, needs addref");
NS_ASSERTION(aTagName, "null tagname!");
void* tag = PL_HashTableLookupConst(gTagAtomTable, aTagName);
return tag ? (nsHTMLTag)NS_PTR_TO_INT32(tag) : eHTMLTag_userdefined;
}
// Functions for converting an id to a string or atom
static const char16_t *GetStringValue(nsHTMLTag aEnum)
{
return aEnum <= eHTMLTag_unknown || aEnum > NS_HTML_TAG_MAX ?
nullptr : sTagUnicodeTable[aEnum - 1];
}
static nsIAtom *GetAtom(nsHTMLTag aEnum)
{
return aEnum <= eHTMLTag_unknown || aEnum > NS_HTML_TAG_MAX ?
nullptr : sTagAtomTable[aEnum - 1];
}
#ifdef DEBUG
static void TestTagTable();
#endif
private:
static nsIAtom* sTagAtomTable[eHTMLTag_userdefined - 1];
static const char16_t* const sTagUnicodeTable[];
static int32_t gTableRefCount;
static PLHashTable* gTagTable;
static PLHashTable* gTagAtomTable;
};
#define eHTMLTags nsHTMLTag
#endif /* nsHTMLTags_h___ */
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