The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/intl/locale/src/nsLanguageAtomService.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,161 @@
     1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +#include "nsLanguageAtomService.h"
    1.10 +#include "nsICharsetConverterManager.h"
    1.11 +#include "nsILocaleService.h"
    1.12 +#include "nsUnicharUtils.h"
    1.13 +#include "nsIAtom.h"
    1.14 +#include "mozilla/Services.h"
    1.15 +#include "nsServiceManagerUtils.h"
    1.16 +
    1.17 +NS_IMPL_ISUPPORTS(nsLanguageAtomService, nsILanguageAtomService)
    1.18 +
    1.19 +nsLanguageAtomService::nsLanguageAtomService()
    1.20 +{
    1.21 +}
    1.22 +
    1.23 +nsresult
    1.24 +nsLanguageAtomService::InitLangGroupTable()
    1.25 +{
    1.26 +  if (mLangGroups)
    1.27 +    return NS_OK;
    1.28 +
    1.29 +  nsCOMPtr<nsIStringBundleService> bundleService =
    1.30 +    mozilla::services::GetStringBundleService();
    1.31 +  if (!bundleService)
    1.32 +    return NS_ERROR_FAILURE;
    1.33 +
    1.34 +  return bundleService->CreateBundle("resource://gre/res/langGroups.properties",
    1.35 +                                     getter_AddRefs(mLangGroups));
    1.36 +}
    1.37 +
    1.38 +nsIAtom*
    1.39 +nsLanguageAtomService::LookupLanguage(const nsACString &aLanguage,
    1.40 +                                      nsresult *aError)
    1.41 +{
    1.42 +  nsAutoCString lowered(aLanguage);
    1.43 +  ToLowerCase(lowered);
    1.44 +
    1.45 +  nsCOMPtr<nsIAtom> lang = do_GetAtom(lowered);
    1.46 +  return GetLanguageGroup(lang, aError);
    1.47 +}
    1.48 +
    1.49 +already_AddRefed<nsIAtom>
    1.50 +nsLanguageAtomService::LookupCharSet(const char *aCharSet, nsresult *aError)
    1.51 +{
    1.52 +  if (!mCharSets) {
    1.53 +    mCharSets = do_GetService(NS_CHARSETCONVERTERMANAGER_CONTRACTID);
    1.54 +    if (!mCharSets) {
    1.55 +      if (aError)
    1.56 +        *aError = NS_ERROR_FAILURE;
    1.57 +
    1.58 +      return nullptr;
    1.59 +    }
    1.60 +  }
    1.61 +
    1.62 +  nsCOMPtr<nsIAtom> langGroup;
    1.63 +  mCharSets->GetCharsetLangGroup(aCharSet, getter_AddRefs(langGroup));
    1.64 +  if (!langGroup) {
    1.65 +    if (aError)
    1.66 +      *aError = NS_ERROR_FAILURE;
    1.67 +
    1.68 +    return nullptr;
    1.69 +  }
    1.70 +
    1.71 +  if (aError)
    1.72 +    *aError = NS_OK;
    1.73 +
    1.74 +  return langGroup.forget();
    1.75 +}
    1.76 +
    1.77 +nsIAtom*
    1.78 +nsLanguageAtomService::GetLocaleLanguage(nsresult *aError)
    1.79 +{
    1.80 +  nsresult res = NS_OK;
    1.81 +
    1.82 +  do {
    1.83 +    if (!mLocaleLanguage) {
    1.84 +      nsCOMPtr<nsILocaleService> localeService;
    1.85 +      localeService = do_GetService(NS_LOCALESERVICE_CONTRACTID);
    1.86 +      if (!localeService) {
    1.87 +        res = NS_ERROR_FAILURE;
    1.88 +        break;
    1.89 +      }
    1.90 +
    1.91 +      nsCOMPtr<nsILocale> locale;
    1.92 +      res = localeService->GetApplicationLocale(getter_AddRefs(locale));
    1.93 +      if (NS_FAILED(res))
    1.94 +        break;
    1.95 +
    1.96 +      nsAutoString loc;
    1.97 +      res = locale->GetCategory(NS_LITERAL_STRING(NSILOCALE_MESSAGE), loc);
    1.98 +      if (NS_FAILED(res))
    1.99 +        break;
   1.100 +
   1.101 +      ToLowerCase(loc); // use lowercase for all language atoms
   1.102 +      mLocaleLanguage = do_GetAtom(loc);
   1.103 +    }
   1.104 +  } while (0);
   1.105 +
   1.106 +  if (aError)
   1.107 +    *aError = res;
   1.108 +
   1.109 +  return mLocaleLanguage;
   1.110 +}
   1.111 +
   1.112 +nsIAtom*
   1.113 +nsLanguageAtomService::GetLanguageGroup(nsIAtom *aLanguage,
   1.114 +                                        nsresult *aError)
   1.115 +{
   1.116 +  nsIAtom *retVal;
   1.117 +  nsresult res = NS_OK;
   1.118 +
   1.119 +  retVal = mLangToGroup.GetWeak(aLanguage);
   1.120 +
   1.121 +  if (!retVal) {
   1.122 +    if (!mLangGroups) {
   1.123 +      if (NS_FAILED(InitLangGroupTable())) {
   1.124 +        if (aError) {
   1.125 +          *aError = NS_ERROR_FAILURE;
   1.126 +        }
   1.127 +        return nullptr;
   1.128 +      }
   1.129 +    }
   1.130 +
   1.131 +    nsString langStr;
   1.132 +    aLanguage->ToString(langStr);
   1.133 +
   1.134 +    nsXPIDLString langGroupStr;
   1.135 +    res = mLangGroups->GetStringFromName(langStr.get(),
   1.136 +                                         getter_Copies(langGroupStr));
   1.137 +    if (NS_FAILED(res)) {
   1.138 +      int32_t hyphen = langStr.FindChar('-');
   1.139 +      if (hyphen >= 0) {
   1.140 +        nsAutoString truncated(langStr);
   1.141 +        truncated.Truncate(hyphen);
   1.142 +        res = mLangGroups->GetStringFromName(truncated.get(),
   1.143 +                                             getter_Copies(langGroupStr));
   1.144 +        if (NS_FAILED(res)) {
   1.145 +          langGroupStr.AssignLiteral("x-unicode");
   1.146 +        }
   1.147 +      } else {
   1.148 +        langGroupStr.AssignLiteral("x-unicode");
   1.149 +      }
   1.150 +    }
   1.151 +
   1.152 +    nsCOMPtr<nsIAtom> langGroup = do_GetAtom(langGroupStr);
   1.153 +
   1.154 +    // The hashtable will keep an owning reference to the atom
   1.155 +    mLangToGroup.Put(aLanguage, langGroup);
   1.156 +    retVal = langGroup.get();
   1.157 +  }
   1.158 +
   1.159 +  if (aError) {
   1.160 +    *aError = res;
   1.161 +  }
   1.162 +
   1.163 +  return retVal;
   1.164 +}