LCOV - code coverage report
Current view: directory - intl/locale/src/unix - nsDateTimeFormatUnix.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 127 82 64.6 %
Date: 2012-06-02 Functions: 9 7 77.8 %

       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) 1998
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *   Pierre Phaneuf <pp@ludusdesign.com>
      24                 :  *
      25                 :  * Alternatively, the contents of this file may be used under the terms of
      26                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      27                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      28                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      29                 :  * of those above. If you wish to allow use of your version of this file only
      30                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      31                 :  * use your version of this file under the terms of the MPL, indicate your
      32                 :  * decision by deleting the provisions above and replace them with the notice
      33                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      34                 :  * the provisions above, a recipient may use your version of this file under
      35                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      36                 :  *
      37                 :  * ***** END LICENSE BLOCK ***** */
      38                 : 
      39                 : #include <locale.h>
      40                 : #include "plstr.h"
      41                 : #include "nsIServiceManager.h"
      42                 : #include "nsDateTimeFormatUnix.h"
      43                 : #include "nsIComponentManager.h"
      44                 : #include "nsILocaleService.h"
      45                 : #include "nsIPlatformCharset.h"
      46                 : #include "nsPosixLocale.h"
      47                 : #include "nsCRT.h"
      48                 : #include "nsReadableUtils.h"
      49                 : #include "nsUnicharUtils.h"
      50                 : 
      51            7123 : NS_IMPL_THREADSAFE_ISUPPORTS1(nsDateTimeFormatUnix, nsIDateTimeFormat)
      52                 : 
      53                 : // init this interface to a specified locale
      54              13 : nsresult nsDateTimeFormatUnix::Initialize(nsILocale* locale)
      55                 : {
      56              26 :   nsAutoString localeStr;
      57              26 :   NS_NAMED_LITERAL_STRING(aCategory, "NSILOCALE_TIME##PLATFORM");
      58              13 :   nsresult res = NS_OK;
      59                 : 
      60                 :   // use cached info if match with stored locale
      61              13 :   if (NULL == locale) {
      62              13 :     if (!mLocale.IsEmpty() &&
      63               0 :         mLocale.Equals(mAppLocale, nsCaseInsensitiveStringComparator())) {
      64               0 :       return NS_OK;
      65                 :     }
      66                 :   }
      67                 :   else {
      68               0 :     res = locale->GetCategory(aCategory, localeStr);
      69               0 :     if (NS_SUCCEEDED(res) && !localeStr.IsEmpty()) {
      70               0 :       if (!mLocale.IsEmpty() &&
      71                 :           mLocale.Equals(localeStr,
      72               0 :                          nsCaseInsensitiveStringComparator())) {
      73               0 :         return NS_OK;
      74                 :       }
      75                 :     }
      76                 :   }
      77                 : 
      78              13 :   mCharset.AssignLiteral("ISO-8859-1");
      79              13 :   mPlatformLocale.Assign("en_US");
      80                 : 
      81                 :   // get locale name string, use app default if no locale specified
      82              13 :   if (NULL == locale) {
      83                 :     nsCOMPtr<nsILocaleService> localeService = 
      84              26 :              do_GetService(NS_LOCALESERVICE_CONTRACTID, &res);
      85              13 :     if (NS_SUCCEEDED(res)) {
      86              26 :       nsCOMPtr<nsILocale> appLocale;
      87              13 :       res = localeService->GetApplicationLocale(getter_AddRefs(appLocale));
      88              13 :       if (NS_SUCCEEDED(res)) {
      89              13 :         res = appLocale->GetCategory(aCategory, localeStr);
      90              13 :         if (NS_SUCCEEDED(res) && !localeStr.IsEmpty()) {
      91              13 :           NS_ASSERTION(NS_SUCCEEDED(res), "failed to get app locale info");
      92              13 :           mAppLocale = localeStr; // cache app locale name
      93                 :         }
      94                 :       }
      95                 :     }
      96                 :   }
      97                 :   else {
      98               0 :     res = locale->GetCategory(aCategory, localeStr);
      99               0 :     NS_ASSERTION(NS_SUCCEEDED(res), "failed to get locale info");
     100                 :   }
     101                 : 
     102              13 :   if (NS_SUCCEEDED(res) && !localeStr.IsEmpty()) {
     103              13 :     mLocale = localeStr; // cache locale name
     104                 : 
     105              13 :     nsPosixLocale::GetPlatformLocale(mLocale, mPlatformLocale);
     106                 : 
     107              26 :     nsCOMPtr <nsIPlatformCharset> platformCharset = do_GetService(NS_PLATFORMCHARSET_CONTRACTID, &res);
     108              13 :     if (NS_SUCCEEDED(res)) {
     109              26 :       nsCAutoString mappedCharset;
     110              13 :       res = platformCharset->GetDefaultCharsetForLocale(mLocale, mappedCharset);
     111              13 :       if (NS_SUCCEEDED(res)) {
     112              13 :         mCharset = mappedCharset;
     113                 :       }
     114                 :     }
     115                 :   }
     116                 : 
     117                 :   // Initialize unicode decoder
     118              26 :   nsCOMPtr <nsICharsetConverterManager>  charsetConverterManager;
     119              13 :   charsetConverterManager = do_GetService(NS_CHARSETCONVERTERMANAGER_CONTRACTID, &res);
     120              13 :   if (NS_SUCCEEDED(res)) {
     121              13 :     res = charsetConverterManager->GetUnicodeDecoder(mCharset.get(), getter_AddRefs(mDecoder));
     122                 :   }
     123                 : 
     124              13 :   LocalePreferred24hour();
     125                 : 
     126              13 :   return res;
     127                 : }
     128                 : 
     129              13 : void nsDateTimeFormatUnix::LocalePreferred24hour()
     130                 : {
     131                 :   char str[100];
     132                 :   time_t tt;
     133                 :   struct tm *tmc;
     134                 :   int i;
     135                 : 
     136              13 :   tt = time((time_t)NULL);
     137              13 :   tmc = localtime(&tt);
     138                 : 
     139              13 :   tmc->tm_hour=22;    // put the test sample hour to 22:00 which is 10PM
     140              13 :   tmc->tm_min=0;      // set the min & sec other number than '2'
     141              13 :   tmc->tm_sec=0;
     142                 : 
     143              13 :   char *temp = setlocale(LC_TIME, mPlatformLocale.get());
     144              13 :   strftime(str, (size_t)99, "%X", (struct tm *)tmc);
     145                 : 
     146              13 :   (void) setlocale(LC_TIME, temp);
     147                 : 
     148              13 :   mLocalePreferred24hour = false;
     149             156 :   for (i=0; str[i]; i++) {
     150             143 :     if (str[i] == '2') {    // if there is any '2', that locale use 0-23 time format
     151               0 :         mLocalePreferred24hour = true;
     152               0 :         break;
     153                 :     }
     154                 :   }
     155                 : 
     156              13 :   mLocaleAMPMfirst = true;
     157              13 :   if (mLocalePreferred24hour == false) {
     158              13 :     if (str[0] && str[0] == '1') { // if the first character is '1' of 10:00,
     159                 :                                    // AMPM string is located after 10:00
     160              13 :       mLocaleAMPMfirst = false;
     161                 :     }
     162                 :   }
     163              13 : }
     164                 : 
     165              13 : nsresult nsDateTimeFormatUnix::FormatTime(nsILocale* locale, 
     166                 :                                       const nsDateFormatSelector  dateFormatSelector, 
     167                 :                                       const nsTimeFormatSelector timeFormatSelector, 
     168                 :                                       const time_t  timetTime, 
     169                 :                                       nsAString& stringOut) 
     170                 : {
     171                 :   struct tm tmTime;
     172              13 :   memcpy(&tmTime, localtime(&timetTime), sizeof(struct tm));
     173              13 :   return FormatTMTime(locale, dateFormatSelector, timeFormatSelector, &tmTime, stringOut);
     174                 : }
     175                 : 
     176                 : // performs a locale sensitive date formatting operation on the struct tm parameter
     177              13 : nsresult nsDateTimeFormatUnix::FormatTMTime(nsILocale* locale, 
     178                 :                                         const nsDateFormatSelector  dateFormatSelector, 
     179                 :                                         const nsTimeFormatSelector timeFormatSelector, 
     180                 :                                         const struct tm*  tmTime, 
     181                 :                                         nsAString& stringOut) 
     182                 : {
     183                 : #define NSDATETIME_FORMAT_BUFFER_LEN  80
     184                 :   char strOut[NSDATETIME_FORMAT_BUFFER_LEN*2];  // buffer for date and time
     185                 :   char fmtD[NSDATETIME_FORMAT_BUFFER_LEN], fmtT[NSDATETIME_FORMAT_BUFFER_LEN];
     186                 :   nsresult rv;
     187                 : 
     188                 :   
     189                 :   // set up locale data
     190              13 :   (void) Initialize(locale);
     191              13 :   NS_ENSURE_TRUE(mDecoder, NS_ERROR_NOT_INITIALIZED);
     192                 : 
     193                 :   // set date format
     194              13 :   if (dateFormatSelector == kDateFormatLong && timeFormatSelector == kTimeFormatSeconds) {
     195               0 :     PL_strncpy(fmtD, "%c", NSDATETIME_FORMAT_BUFFER_LEN);
     196               0 :     PL_strncpy(fmtT, "", NSDATETIME_FORMAT_BUFFER_LEN); 
     197                 :   } else {
     198                 : 
     199              13 :     switch (dateFormatSelector) {
     200                 :       case kDateFormatNone:
     201               4 :         PL_strncpy(fmtD, "", NSDATETIME_FORMAT_BUFFER_LEN);
     202               4 :         break; 
     203                 :       case kDateFormatLong:
     204                 :       case kDateFormatShort:
     205               9 :         PL_strncpy(fmtD, "%x", NSDATETIME_FORMAT_BUFFER_LEN);
     206               9 :         break; 
     207                 :       case kDateFormatYearMonth:
     208               0 :         PL_strncpy(fmtD, "%Y/%m", NSDATETIME_FORMAT_BUFFER_LEN);
     209               0 :         break; 
     210                 :       case kDateFormatWeekday:
     211               0 :         PL_strncpy(fmtD, "%a", NSDATETIME_FORMAT_BUFFER_LEN);
     212               0 :         break;
     213                 :       default:
     214               0 :         PL_strncpy(fmtD, "", NSDATETIME_FORMAT_BUFFER_LEN); 
     215                 :     }
     216                 : 
     217                 :     // set time format
     218              13 :     switch (timeFormatSelector) {
     219                 :       case kTimeFormatNone:
     220               0 :         PL_strncpy(fmtT, "", NSDATETIME_FORMAT_BUFFER_LEN); 
     221               0 :         break;
     222                 :       case kTimeFormatSeconds:
     223               0 :         PL_strncpy(fmtT, "%X", NSDATETIME_FORMAT_BUFFER_LEN);
     224               0 :         break;
     225                 :       case kTimeFormatNoSeconds:
     226                 :         PL_strncpy(fmtT, 
     227                 :                    mLocalePreferred24hour ? "%H:%M" : mLocaleAMPMfirst ? "%p %I:%M" : "%I:%M %p", 
     228              13 :                    NSDATETIME_FORMAT_BUFFER_LEN);
     229              13 :         break;
     230                 :       case kTimeFormatSecondsForce24Hour:
     231               0 :         PL_strncpy(fmtT, "%H:%M:%S", NSDATETIME_FORMAT_BUFFER_LEN);
     232               0 :         break;
     233                 :       case kTimeFormatNoSecondsForce24Hour:
     234               0 :         PL_strncpy(fmtT, "%H:%M", NSDATETIME_FORMAT_BUFFER_LEN);
     235               0 :         break;
     236                 :       default:
     237               0 :         PL_strncpy(fmtT, "", NSDATETIME_FORMAT_BUFFER_LEN); 
     238                 :     }
     239                 :   }
     240                 : 
     241                 :   // generate data/time string
     242              13 :   char *old_locale = setlocale(LC_TIME, NULL);
     243              13 :   (void) setlocale(LC_TIME, mPlatformLocale.get());
     244              13 :   if (PL_strlen(fmtD) && PL_strlen(fmtT)) {
     245               9 :     PL_strncat(fmtD, " ", NSDATETIME_FORMAT_BUFFER_LEN);
     246               9 :     PL_strncat(fmtD, fmtT, NSDATETIME_FORMAT_BUFFER_LEN);
     247               9 :     strftime(strOut, NSDATETIME_FORMAT_BUFFER_LEN, fmtD, tmTime);
     248                 :   }
     249               4 :   else if (PL_strlen(fmtD) && !PL_strlen(fmtT)) {
     250               0 :     strftime(strOut, NSDATETIME_FORMAT_BUFFER_LEN, fmtD, tmTime);
     251                 :   }
     252               4 :   else if (!PL_strlen(fmtD) && PL_strlen(fmtT)) {
     253               4 :     strftime(strOut, NSDATETIME_FORMAT_BUFFER_LEN, fmtT, tmTime);
     254                 :   }
     255                 :   else {
     256               0 :     PL_strncpy(strOut, "", NSDATETIME_FORMAT_BUFFER_LEN);
     257                 :   }
     258              13 :   (void) setlocale(LC_TIME, old_locale);
     259                 : 
     260                 :   // convert result to unicode
     261              13 :   PRInt32 srcLength = (PRInt32) PL_strlen(strOut);
     262              13 :   PRInt32 unicharLength = NSDATETIME_FORMAT_BUFFER_LEN*2;
     263                 :   PRUnichar unichars[NSDATETIME_FORMAT_BUFFER_LEN*2];   // buffer for date and time
     264                 : 
     265              13 :   rv = mDecoder->Convert(strOut, &srcLength, unichars, &unicharLength);
     266              13 :   if (NS_FAILED(rv))
     267               0 :     return rv;
     268              13 :   stringOut.Assign(unichars, unicharLength);
     269                 : 
     270              13 :   return rv;
     271                 : }
     272                 : 
     273                 : // performs a locale sensitive date formatting operation on the PRTime parameter
     274               0 : nsresult nsDateTimeFormatUnix::FormatPRTime(nsILocale* locale, 
     275                 :                                            const nsDateFormatSelector  dateFormatSelector, 
     276                 :                                            const nsTimeFormatSelector timeFormatSelector, 
     277                 :                                            const PRTime  prTime, 
     278                 :                                            nsAString& stringOut)
     279                 : {
     280                 :   PRExplodedTime explodedTime;
     281               0 :   PR_ExplodeTime(prTime, PR_LocalTimeParameters, &explodedTime);
     282                 : 
     283               0 :   return FormatPRExplodedTime(locale, dateFormatSelector, timeFormatSelector, &explodedTime, stringOut);
     284                 : }
     285                 : 
     286                 : // performs a locale sensitive date formatting operation on the PRExplodedTime parameter
     287               0 : nsresult nsDateTimeFormatUnix::FormatPRExplodedTime(nsILocale* locale, 
     288                 :                                                    const nsDateFormatSelector  dateFormatSelector, 
     289                 :                                                    const nsTimeFormatSelector timeFormatSelector, 
     290                 :                                                    const PRExplodedTime*  explodedTime, 
     291                 :                                                    nsAString& stringOut)
     292                 : {
     293                 :   struct tm  tmTime;
     294                 :   /* be safe and set all members of struct tm to zero
     295                 :    *
     296                 :    * there are other fields in the tm struct that we aren't setting
     297                 :    * (tm_isdst, tm_gmtoff, tm_zone, should we set these?) and since
     298                 :    * tmTime is on the stack, it may be filled with garbage, but
     299                 :    * the garbage may vary.  (this may explain why some saw bug #10412, and
     300                 :    * others did not.
     301                 :    *
     302                 :    * when tmTime is passed to strftime() with garbage bad things may happen. 
     303                 :    * see bug #10412
     304                 :    */
     305               0 :   memset( &tmTime, 0, sizeof(tmTime) );
     306                 : 
     307               0 :   tmTime.tm_yday = explodedTime->tm_yday;
     308               0 :   tmTime.tm_wday = explodedTime->tm_wday;
     309               0 :   tmTime.tm_year = explodedTime->tm_year;
     310               0 :   tmTime.tm_year -= 1900;
     311               0 :   tmTime.tm_mon = explodedTime->tm_month;
     312               0 :   tmTime.tm_mday = explodedTime->tm_mday;
     313               0 :   tmTime.tm_hour = explodedTime->tm_hour;
     314               0 :   tmTime.tm_min = explodedTime->tm_min;
     315               0 :   tmTime.tm_sec = explodedTime->tm_sec;
     316                 : 
     317               0 :   return FormatTMTime(locale, dateFormatSelector, timeFormatSelector, &tmTime, stringOut);
     318                 : }
     319                 : 

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