gecko-dev/layout/style/nsCSSKeywords.cpp

88 строки
2.5 KiB
C++
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/* -*- 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
* 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/. */
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/* keywords used within CSS property values */
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#include "nsCSSKeywords.h"
#include "nsString.h"
#include "nsStaticNameTable.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 int32_t gKeywordTableRefCount;
static nsStaticCaseInsensitiveNameTable* gKeywordTable;
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void
nsCSSKeywords::AddRefTable(void)
{
if (0 == gKeywordTableRefCount++) {
NS_ASSERTION(!gKeywordTable, "pre existing array!");
gKeywordTable =
new nsStaticCaseInsensitiveNameTable(kCSSRawKeywords, eCSSKeyword_COUNT);
#ifdef DEBUG
// Partially verify the entries.
int32_t index = 0;
for (; index < eCSSKeyword_COUNT && kCSSRawKeywords[index]; ++index) {
nsAutoCString temp(kCSSRawKeywords[index]);
NS_ASSERTION(-1 == temp.FindChar('_'), "underscore char in table");
}
NS_ASSERTION(index == eCSSKeyword_COUNT, "kCSSRawKeywords and eCSSKeyword_COUNT are out of sync");
#endif
}
}
void
nsCSSKeywords::ReleaseTable(void)
{
if (0 == --gKeywordTableRefCount) {
if (gKeywordTable) {
delete gKeywordTable;
gKeywordTable = nullptr;
}
}
}
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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");
NS_ASSERTION(0 <= aKeyword && aKeyword < eCSSKeyword_COUNT, "out of range");
if (gKeywordTable) {
return gKeywordTable->GetStringValue(int32_t(aKeyword));
} else {
static nsDependentCString kNullStr("");
return kNullStr;
}
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}