The Tor Browser / file comparison
comparison: intl/locale/src/nsLanguageAtomService.cpp
intl/locale/src/nsLanguageAtomService.cpp
- branch
- TOR_BUG_3246
- changeset 4
- fc2d59ddac77
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| -1:000000000000 | 0:c42cfb9d7fd4 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #include "nsLanguageAtomService.h" | |
| 7 #include "nsICharsetConverterManager.h" | |
| 8 #include "nsILocaleService.h" | |
| 9 #include "nsUnicharUtils.h" | |
| 10 #include "nsIAtom.h" | |
| 11 #include "mozilla/Services.h" | |
| 12 #include "nsServiceManagerUtils.h" | |
| 13 | |
| 14 NS_IMPL_ISUPPORTS(nsLanguageAtomService, nsILanguageAtomService) | |
| 15 | |
| 16 nsLanguageAtomService::nsLanguageAtomService() | |
| 17 { | |
| 18 } | |
| 19 | |
| 20 nsresult | |
| 21 nsLanguageAtomService::InitLangGroupTable() | |
| 22 { | |
| 23 if (mLangGroups) | |
| 24 return NS_OK; | |
| 25 | |
| 26 nsCOMPtr<nsIStringBundleService> bundleService = | |
| 27 mozilla::services::GetStringBundleService(); | |
| 28 if (!bundleService) | |
| 29 return NS_ERROR_FAILURE; | |
| 30 | |
| 31 return bundleService->CreateBundle("resource://gre/res/langGroups.properties", | |
| 32 getter_AddRefs(mLangGroups)); | |
| 33 } | |
| 34 | |
| 35 nsIAtom* | |
| 36 nsLanguageAtomService::LookupLanguage(const nsACString &aLanguage, | |
| 37 nsresult *aError) | |
| 38 { | |
| 39 nsAutoCString lowered(aLanguage); | |
| 40 ToLowerCase(lowered); | |
| 41 | |
| 42 nsCOMPtr<nsIAtom> lang = do_GetAtom(lowered); | |
| 43 return GetLanguageGroup(lang, aError); | |
| 44 } | |
| 45 | |
| 46 already_AddRefed<nsIAtom> | |
| 47 nsLanguageAtomService::LookupCharSet(const char *aCharSet, nsresult *aError) | |
| 48 { | |
| 49 if (!mCharSets) { | |
| 50 mCharSets = do_GetService(NS_CHARSETCONVERTERMANAGER_CONTRACTID); | |
| 51 if (!mCharSets) { | |
| 52 if (aError) | |
| 53 *aError = NS_ERROR_FAILURE; | |
| 54 | |
| 55 return nullptr; | |
| 56 } | |
| 57 } | |
| 58 | |
| 59 nsCOMPtr<nsIAtom> langGroup; | |
| 60 mCharSets->GetCharsetLangGroup(aCharSet, getter_AddRefs(langGroup)); | |
| 61 if (!langGroup) { | |
| 62 if (aError) | |
| 63 *aError = NS_ERROR_FAILURE; | |
| 64 | |
| 65 return nullptr; | |
| 66 } | |
| 67 | |
| 68 if (aError) | |
| 69 *aError = NS_OK; | |
| 70 | |
| 71 return langGroup.forget(); | |
| 72 } | |
| 73 | |
| 74 nsIAtom* | |
| 75 nsLanguageAtomService::GetLocaleLanguage(nsresult *aError) | |
| 76 { | |
| 77 nsresult res = NS_OK; | |
| 78 | |
| 79 do { | |
| 80 if (!mLocaleLanguage) { | |
| 81 nsCOMPtr<nsILocaleService> localeService; | |
| 82 localeService = do_GetService(NS_LOCALESERVICE_CONTRACTID); | |
| 83 if (!localeService) { | |
| 84 res = NS_ERROR_FAILURE; | |
| 85 break; | |
| 86 } | |
| 87 | |
| 88 nsCOMPtr<nsILocale> locale; | |
| 89 res = localeService->GetApplicationLocale(getter_AddRefs(locale)); | |
| 90 if (NS_FAILED(res)) | |
| 91 break; | |
| 92 | |
| 93 nsAutoString loc; | |
| 94 res = locale->GetCategory(NS_LITERAL_STRING(NSILOCALE_MESSAGE), loc); | |
| 95 if (NS_FAILED(res)) | |
| 96 break; | |
| 97 | |
| 98 ToLowerCase(loc); // use lowercase for all language atoms | |
| 99 mLocaleLanguage = do_GetAtom(loc); | |
| 100 } | |
| 101 } while (0); | |
| 102 | |
| 103 if (aError) | |
| 104 *aError = res; | |
| 105 | |
| 106 return mLocaleLanguage; | |
| 107 } | |
| 108 | |
| 109 nsIAtom* | |
| 110 nsLanguageAtomService::GetLanguageGroup(nsIAtom *aLanguage, | |
| 111 nsresult *aError) | |
| 112 { | |
| 113 nsIAtom *retVal; | |
| 114 nsresult res = NS_OK; | |
| 115 | |
| 116 retVal = mLangToGroup.GetWeak(aLanguage); | |
| 117 | |
| 118 if (!retVal) { | |
| 119 if (!mLangGroups) { | |
| 120 if (NS_FAILED(InitLangGroupTable())) { | |
| 121 if (aError) { | |
| 122 *aError = NS_ERROR_FAILURE; | |
| 123 } | |
| 124 return nullptr; | |
| 125 } | |
| 126 } | |
| 127 | |
| 128 nsString langStr; | |
| 129 aLanguage->ToString(langStr); | |
| 130 | |
| 131 nsXPIDLString langGroupStr; | |
| 132 res = mLangGroups->GetStringFromName(langStr.get(), | |
| 133 getter_Copies(langGroupStr)); | |
| 134 if (NS_FAILED(res)) { | |
| 135 int32_t hyphen = langStr.FindChar('-'); | |
| 136 if (hyphen >= 0) { | |
| 137 nsAutoString truncated(langStr); | |
| 138 truncated.Truncate(hyphen); | |
| 139 res = mLangGroups->GetStringFromName(truncated.get(), | |
| 140 getter_Copies(langGroupStr)); | |
| 141 if (NS_FAILED(res)) { | |
| 142 langGroupStr.AssignLiteral("x-unicode"); | |
| 143 } | |
| 144 } else { | |
| 145 langGroupStr.AssignLiteral("x-unicode"); | |
| 146 } | |
| 147 } | |
| 148 | |
| 149 nsCOMPtr<nsIAtom> langGroup = do_GetAtom(langGroupStr); | |
| 150 | |
| 151 // The hashtable will keep an owning reference to the atom | |
| 152 mLangToGroup.Put(aLanguage, langGroup); | |
| 153 retVal = langGroup.get(); | |
| 154 } | |
| 155 | |
| 156 if (aError) { | |
| 157 *aError = res; | |
| 158 } | |
| 159 | |
| 160 return retVal; | |
| 161 } |
