gecko/layout/style/nsCSSKeywords.cpp
2012-05-21 12:12:37 +01:00

97 lines
2.7 KiB
C++

/* -*- 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/. */
/* keywords used within CSS property values */
#include "nsCSSKeywords.h"
#include "nsString.h"
#include "nsStaticNameTable.h"
#include "nsReadableUtils.h"
#include "nsStyleConsts.h"
// 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"
};
#undef CSS_KEY
static PRInt32 gTableRefCount;
static nsStaticCaseInsensitiveNameTable* gKeywordTable;
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;
}
}
}
nsCSSKeyword
nsCSSKeywords::LookupKeyword(const nsACString& aKeyword)
{
NS_ASSERTION(gKeywordTable, "no lookup table, needs addref");
if (gKeywordTable) {
return nsCSSKeyword(gKeywordTable->Lookup(aKeyword));
}
return eCSSKeyword_UNKNOWN;
}
nsCSSKeyword
nsCSSKeywords::LookupKeyword(const nsAString& aKeyword)
{
NS_ASSERTION(gKeywordTable, "no lookup table, needs addref");
if (gKeywordTable) {
return nsCSSKeyword(gKeywordTable->Lookup(aKeyword));
}
return eCSSKeyword_UNKNOWN;
}
const nsAFlatCString&
nsCSSKeywords::GetStringValue(nsCSSKeyword aKeyword)
{
NS_ASSERTION(gKeywordTable, "no lookup table, needs addref");
NS_ASSERTION(0 <= aKeyword && aKeyword < eCSSKeyword_COUNT, "out of range");
if (gKeywordTable) {
return gKeywordTable->GetStringValue(PRInt32(aKeyword));
} else {
static nsDependentCString kNullStr("");
return kNullStr;
}
}