LCOV - code coverage report
Current view: directory - intl/locale/src - nsLanguageAtomService.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 83 0 0.0 %
Date: 2012-06-02 Functions: 9 0 0.0 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is mozilla.org code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Netscape Communications Corporation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 2000
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *
      24                 :  * Alternatively, the contents of this file may be used under the terms of
      25                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      26                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      27                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      28                 :  * of those above. If you wish to allow use of your version of this file only
      29                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      30                 :  * use your version of this file under the terms of the MPL, indicate your
      31                 :  * decision by deleting the provisions above and replace them with the notice
      32                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      33                 :  * the provisions above, a recipient may use your version of this file under
      34                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      35                 :  *
      36                 :  * ***** END LICENSE BLOCK ***** */
      37                 : 
      38                 : #include "nsIComponentManager.h"
      39                 : #include "nsLanguageAtomService.h"
      40                 : #include "nsICharsetConverterManager.h"
      41                 : #include "nsILocaleService.h"
      42                 : #include "nsXPIDLString.h"
      43                 : #include "nsUnicharUtils.h"
      44                 : #include "nsIServiceManager.h"
      45                 : #include "nsIAtom.h"
      46                 : #include "mozilla/Services.h"
      47                 : 
      48               0 : NS_IMPL_ISUPPORTS1(nsLanguageAtomService, nsILanguageAtomService)
      49                 : 
      50               0 : nsLanguageAtomService::nsLanguageAtomService()
      51                 : {
      52               0 :   mLangToGroup.Init();
      53               0 : }
      54                 : 
      55                 : nsresult
      56               0 : nsLanguageAtomService::InitLangGroupTable()
      57                 : {
      58               0 :   if (mLangGroups)
      59               0 :     return NS_OK;
      60                 : 
      61                 :   nsCOMPtr<nsIStringBundleService> bundleService =
      62               0 :     mozilla::services::GetStringBundleService();
      63               0 :   if (!bundleService)
      64               0 :     return NS_ERROR_FAILURE;
      65                 : 
      66               0 :   return bundleService->CreateBundle("resource://gre/res/langGroups.properties",
      67               0 :                                      getter_AddRefs(mLangGroups));
      68                 : }
      69                 : 
      70                 : nsIAtom*
      71               0 : nsLanguageAtomService::LookupLanguage(const nsACString &aLanguage,
      72                 :                                       nsresult *aError)
      73                 : {
      74               0 :   nsCAutoString lowered(aLanguage);
      75               0 :   ToLowerCase(lowered);
      76                 : 
      77               0 :   nsCOMPtr<nsIAtom> lang = do_GetAtom(lowered);
      78               0 :   return GetLanguageGroup(lang, aError);
      79                 : }
      80                 : 
      81                 : already_AddRefed<nsIAtom>
      82               0 : nsLanguageAtomService::LookupCharSet(const char *aCharSet, nsresult *aError)
      83                 : {
      84               0 :   if (!mCharSets) {
      85               0 :     mCharSets = do_GetService(NS_CHARSETCONVERTERMANAGER_CONTRACTID);
      86               0 :     if (!mCharSets) {
      87               0 :       if (aError)
      88               0 :         *aError = NS_ERROR_FAILURE;
      89                 : 
      90               0 :       return nsnull;
      91                 :     }
      92                 :   }
      93                 : 
      94               0 :   nsCOMPtr<nsIAtom> langGroup;
      95               0 :   mCharSets->GetCharsetLangGroup(aCharSet, getter_AddRefs(langGroup));
      96               0 :   if (!langGroup) {
      97               0 :     if (aError)
      98               0 :       *aError = NS_ERROR_FAILURE;
      99                 : 
     100               0 :     return nsnull;
     101                 :   }
     102                 : 
     103                 :   // transfer reference to raw pointer
     104               0 :   nsIAtom *raw = nsnull;
     105               0 :   langGroup.swap(raw);
     106                 : 
     107               0 :   if (aError)
     108               0 :     *aError = NS_OK;
     109                 : 
     110               0 :   return raw;
     111                 : }
     112                 : 
     113                 : nsIAtom*
     114               0 : nsLanguageAtomService::GetLocaleLanguage(nsresult *aError)
     115                 : {
     116               0 :   nsresult res = NS_OK;
     117                 : 
     118                 :   do {
     119               0 :     if (!mLocaleLanguage) {
     120               0 :       nsCOMPtr<nsILocaleService> localeService;
     121               0 :       localeService = do_GetService(NS_LOCALESERVICE_CONTRACTID);
     122               0 :       if (!localeService) {
     123               0 :         res = NS_ERROR_FAILURE;
     124                 :         break;
     125                 :       }
     126                 : 
     127               0 :       nsCOMPtr<nsILocale> locale;
     128               0 :       res = localeService->GetApplicationLocale(getter_AddRefs(locale));
     129               0 :       if (NS_FAILED(res))
     130                 :         break;
     131                 : 
     132               0 :       nsAutoString loc;
     133               0 :       res = locale->GetCategory(NS_LITERAL_STRING(NSILOCALE_MESSAGE), loc);
     134               0 :       if (NS_FAILED(res))
     135                 :         break;
     136                 : 
     137               0 :       ToLowerCase(loc); // use lowercase for all language atoms
     138               0 :       mLocaleLanguage = do_GetAtom(loc);
     139                 :     }
     140                 :   } while (0);
     141                 : 
     142               0 :   if (aError)
     143               0 :     *aError = res;
     144                 : 
     145               0 :   return mLocaleLanguage;
     146                 : }
     147                 : 
     148                 : nsIAtom*
     149               0 : nsLanguageAtomService::GetLanguageGroup(nsIAtom *aLanguage,
     150                 :                                         nsresult *aError)
     151                 : {
     152                 :   nsIAtom *retVal;
     153               0 :   nsresult res = NS_OK;
     154                 : 
     155               0 :   retVal = mLangToGroup.GetWeak(aLanguage);
     156                 : 
     157               0 :   if (!retVal) {
     158               0 :     if (!mLangGroups) {
     159               0 :       if (NS_FAILED(InitLangGroupTable())) {
     160               0 :         if (aError) {
     161               0 :           *aError = NS_ERROR_FAILURE;
     162                 :         }
     163               0 :         return nsnull;
     164                 :       }
     165                 :     }
     166                 : 
     167               0 :     nsString langStr;
     168               0 :     aLanguage->ToString(langStr);
     169                 : 
     170               0 :     nsXPIDLString langGroupStr;
     171               0 :     res = mLangGroups->GetStringFromName(langStr.get(),
     172               0 :                                          getter_Copies(langGroupStr));
     173               0 :     if (NS_FAILED(res)) {
     174               0 :       PRInt32 hyphen = langStr.FindChar('-');
     175               0 :       if (hyphen >= 0) {
     176               0 :         nsAutoString truncated(langStr);
     177               0 :         truncated.Truncate(hyphen);
     178               0 :         res = mLangGroups->GetStringFromName(truncated.get(),
     179               0 :                                              getter_Copies(langGroupStr));
     180               0 :         if (NS_FAILED(res)) {
     181               0 :           langGroupStr.AssignLiteral("x-unicode");
     182                 :         }
     183                 :       } else {
     184               0 :         langGroupStr.AssignLiteral("x-unicode");
     185                 :       }
     186                 :     }
     187                 : 
     188               0 :     nsCOMPtr<nsIAtom> langGroup = do_GetAtom(langGroupStr);
     189                 : 
     190                 :     // The hashtable will keep an owning reference to the atom
     191               0 :     mLangToGroup.Put(aLanguage, langGroup);
     192               0 :     retVal = langGroup.get();
     193                 :   }
     194                 : 
     195               0 :   if (aError) {
     196               0 :     *aError = res;
     197                 :   }
     198                 : 
     199               0 :   return retVal;
     200                 : }

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