gecko-dev/layout/style/nsCSSKeywords.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1999
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
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* ***** END LICENSE BLOCK ***** */
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#include "nsCSSKeywords.h"
#include "nsString.h"
#include "nsStaticNameTable.h"
#include "nsReadableUtils.h"
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// required to make the symbol external, so that TestCSSPropertyLookup.cpp can link with it
extern const char* const kCSSRawKeywords[];
// define an array of all CSS keywords
#define CSS_KEY(_name,_id) #_name,
const char* const kCSSRawKeywords[] = {
#include "nsCSSKeywordList.h"
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};
#undef CSS_KEY
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static PRInt32 gTableRefCount;
static nsStaticCaseInsensitiveNameTable* gKeywordTable;
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void
nsCSSKeywords::AddRefTable(void)
{
if (0 == gTableRefCount++) {
NS_ASSERTION(!gKeywordTable, "pre existing array!");
gKeywordTable = new nsStaticCaseInsensitiveNameTable();
if (gKeywordTable) {
#ifdef DEBUG
{
// let's verify the table...
PRInt32 index = 0;
for (; index < eCSSKeyword_COUNT && kCSSRawKeywords[index]; ++index) {
nsCAutoString temp1(kCSSRawKeywords[index]);
nsCAutoString temp2(kCSSRawKeywords[index]);
ToLowerCase(temp1);
NS_ASSERTION(temp1.Equals(temp2), "upper case char in table");
NS_ASSERTION(-1 == temp1.FindChar('_'), "underscore char in table");
}
NS_ASSERTION(index == eCSSKeyword_COUNT, "kCSSRawKeywords and eCSSKeyword_COUNT are out of sync");
}
#endif
gKeywordTable->Init(kCSSRawKeywords, eCSSKeyword_COUNT);
}
}
}
void
nsCSSKeywords::ReleaseTable(void)
{
if (0 == --gTableRefCount) {
if (gKeywordTable) {
delete gKeywordTable;
gKeywordTable = nsnull;
}
}
}
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nsCSSKeyword
nsCSSKeywords::LookupKeyword(const nsACString& aKeyword)
{
NS_ASSERTION(gKeywordTable, "no lookup table, needs addref");
if (gKeywordTable) {
return nsCSSKeyword(gKeywordTable->Lookup(aKeyword));
}
return eCSSKeyword_UNKNOWN;
}
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nsCSSKeyword
nsCSSKeywords::LookupKeyword(const nsAString& aKeyword)
{
NS_ASSERTION(gKeywordTable, "no lookup table, needs addref");
if (gKeywordTable) {
return nsCSSKeyword(gKeywordTable->Lookup(aKeyword));
}
return eCSSKeyword_UNKNOWN;
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}
const nsAFlatCString&
nsCSSKeywords::GetStringValue(nsCSSKeyword aKeyword)
{
NS_ASSERTION(gKeywordTable, "no lookup table, needs addref");
if (gKeywordTable) {
return gKeywordTable->GetStringValue(PRInt32(aKeyword));
} else {
static nsDependentCString kNullStr("");
return kNullStr;
}
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}