зеркало из https://github.com/mozilla/gecko-dev.git
135 строки
3.8 KiB
C++
135 строки
3.8 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/. */
|
|
|
|
#include "nsLanguageAtomService.h"
|
|
#include "nsUConvPropertySearch.h"
|
|
#include "nsUnicharUtils.h"
|
|
#include "nsAtom.h"
|
|
#include "mozilla/ArrayUtils.h"
|
|
#include "mozilla/ClearOnShutdown.h"
|
|
#include "mozilla/Encoding.h"
|
|
#include "mozilla/intl/OSPreferences.h"
|
|
#include "mozilla/ServoBindings.h"
|
|
|
|
using namespace mozilla;
|
|
using mozilla::intl::OSPreferences;
|
|
|
|
static constexpr nsUConvProp encodingsGroups[] = {
|
|
#include "encodingsgroups.properties.h"
|
|
};
|
|
|
|
static constexpr nsUConvProp kLangGroups[] = {
|
|
#include "langGroups.properties.h"
|
|
};
|
|
|
|
// static
|
|
nsLanguageAtomService*
|
|
nsLanguageAtomService::GetService()
|
|
{
|
|
static UniquePtr<nsLanguageAtomService> gLangAtomService;
|
|
if (!gLangAtomService) {
|
|
gLangAtomService = MakeUnique<nsLanguageAtomService>();
|
|
ClearOnShutdown(&gLangAtomService);
|
|
}
|
|
return gLangAtomService.get();
|
|
}
|
|
|
|
nsAtom*
|
|
nsLanguageAtomService::LookupLanguage(const nsACString &aLanguage)
|
|
{
|
|
nsAutoCString lowered(aLanguage);
|
|
ToLowerCase(lowered);
|
|
|
|
RefPtr<nsAtom> lang = NS_Atomize(lowered);
|
|
return GetLanguageGroup(lang);
|
|
}
|
|
|
|
already_AddRefed<nsAtom>
|
|
nsLanguageAtomService::LookupCharSet(NotNull<const Encoding*> aEncoding)
|
|
{
|
|
nsAutoCString charset;
|
|
aEncoding->Name(charset);
|
|
nsAutoCString group;
|
|
if (NS_FAILED(nsUConvPropertySearch::SearchPropertyValue(
|
|
encodingsGroups, ArrayLength(encodingsGroups), charset, group))) {
|
|
return RefPtr<nsAtom>(nsGkAtoms::Unicode).forget();
|
|
}
|
|
return NS_Atomize(group);
|
|
}
|
|
|
|
nsAtom*
|
|
nsLanguageAtomService::GetLocaleLanguage()
|
|
{
|
|
do {
|
|
if (!mLocaleLanguage) {
|
|
AutoTArray<nsCString, 10> regionalPrefsLocales;
|
|
if (OSPreferences::GetInstance()->GetRegionalPrefsLocales(
|
|
regionalPrefsLocales)) {
|
|
// use lowercase for all language atoms
|
|
ToLowerCase(regionalPrefsLocales[0]);
|
|
mLocaleLanguage = NS_Atomize(regionalPrefsLocales[0]);
|
|
} else {
|
|
nsAutoCString locale;
|
|
OSPreferences::GetInstance()->GetSystemLocale(locale);
|
|
|
|
ToLowerCase(locale); // use lowercase for all language atoms
|
|
mLocaleLanguage = NS_Atomize(locale);
|
|
}
|
|
}
|
|
} while (0);
|
|
|
|
return mLocaleLanguage;
|
|
}
|
|
|
|
nsAtom*
|
|
nsLanguageAtomService::GetLanguageGroup(nsAtom *aLanguage, bool* aNeedsToCache)
|
|
{
|
|
nsAtom *retVal = mLangToGroup.GetWeak(aLanguage);
|
|
|
|
if (!retVal) {
|
|
if (aNeedsToCache) {
|
|
*aNeedsToCache = true;
|
|
return nullptr;
|
|
}
|
|
RefPtr<nsAtom> uncached = GetUncachedLanguageGroup(aLanguage);
|
|
retVal = uncached.get();
|
|
|
|
AssertIsMainThreadOrServoLangFontPrefsCacheLocked();
|
|
// The hashtable will keep an owning reference to the atom
|
|
mLangToGroup.Put(aLanguage, uncached);
|
|
}
|
|
|
|
return retVal;
|
|
}
|
|
|
|
already_AddRefed<nsAtom>
|
|
nsLanguageAtomService::GetUncachedLanguageGroup(nsAtom* aLanguage) const
|
|
{
|
|
nsAutoCString langStr;
|
|
aLanguage->ToUTF8String(langStr);
|
|
ToLowerCase(langStr);
|
|
|
|
nsAutoCString langGroupStr;
|
|
nsresult res =
|
|
nsUConvPropertySearch::SearchPropertyValue(kLangGroups,
|
|
ArrayLength(kLangGroups),
|
|
langStr, langGroupStr);
|
|
while (NS_FAILED(res)) {
|
|
int32_t hyphen = langStr.RFindChar('-');
|
|
if (hyphen <= 0) {
|
|
langGroupStr.AssignLiteral("x-unicode");
|
|
break;
|
|
}
|
|
langStr.Truncate(hyphen);
|
|
res = nsUConvPropertySearch::SearchPropertyValue(kLangGroups,
|
|
ArrayLength(kLangGroups),
|
|
langStr, langGroupStr);
|
|
}
|
|
|
|
RefPtr<nsAtom> langGroup = NS_Atomize(langGroupStr);
|
|
|
|
return langGroup.forget();
|
|
}
|