The Tor Browser: intl/locale/src/mac/nsDateTimeFormatMac.cpp@925c144e1f1f (annotated)

intl/locale/src/mac/nsDateTimeFormatMac.cpp@925c144e1f1f (annotated)

intl/locale/src/mac/nsDateTimeFormatMac.cpp

Fri, 16 Jan 2015 18:13:44 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Fri, 16 Jan 2015 18:13:44 +0100
branch: TOR_BUG_9701
changeset 14: 925c144e1f1f
permissions: -rw-r--r--

Integrate suggestion from review to improve consistency with existing code.

 /* -*- 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 <CoreFoundation/CoreFoundation.h>
 #include "nsIServiceManager.h"
 #include "nsDateTimeFormatMac.h"
 #include <CoreFoundation/CFDateFormatter.h>
 #include "nsIComponentManager.h"
 #include "nsILocaleService.h"
 #include "nsCRT.h"
 #include "plstr.h"
 #include "nsUnicharUtils.h"
 #include "nsTArray.h"
 NS_IMPL_ISUPPORTS(nsDateTimeFormatMac, nsIDateTimeFormat)
 nsresult nsDateTimeFormatMac::Initialize(nsILocale* locale)
 {
   nsAutoString localeStr;
   nsAutoString category(NS_LITERAL_STRING("NSILOCALE_TIME"));
   nsresult res;
   // use cached info if match with stored locale
   if (nullptr == locale) {
     if (!mLocale.IsEmpty() &&
         mLocale.Equals(mAppLocale, nsCaseInsensitiveStringComparator())) {
       return NS_OK;
     }
   }
   else {
     res = locale->GetCategory(category, localeStr);
     if (NS_SUCCEEDED(res) && !localeStr.IsEmpty()) {
       if (!mLocale.IsEmpty() &&
           mLocale.Equals(localeStr,
                          nsCaseInsensitiveStringComparator())) {
         return NS_OK;
       }
     }
   }
   // get application locale
   nsCOMPtr<nsILocaleService> localeService =
            do_GetService(NS_LOCALESERVICE_CONTRACTID, &res);
   if (NS_SUCCEEDED(res)) {
     nsCOMPtr<nsILocale> appLocale;
     res = localeService->GetApplicationLocale(getter_AddRefs(appLocale));
     if (NS_SUCCEEDED(res)) {
       res = appLocale->GetCategory(category, localeStr);
       if (NS_SUCCEEDED(res) && !localeStr.IsEmpty()) {
         mAppLocale = localeStr; // cache app locale name
       }
     }
   }
   // use app default if no locale specified
   if (nullptr == locale) {
     mUseDefaultLocale = true;
   }
   else {
     mUseDefaultLocale = false;
     res = locale->GetCategory(category, localeStr);
   }
   if (NS_SUCCEEDED(res) && !localeStr.IsEmpty()) {
     mLocale.Assign(localeStr); // cache locale name
   }
   return res;
 }
 // performs a locale sensitive date formatting operation on the time_t parameter
 nsresult nsDateTimeFormatMac::FormatTime(nsILocale* locale,
                                       const nsDateFormatSelector  dateFormatSelector,
                                       const nsTimeFormatSelector timeFormatSelector,
                                       const time_t  timetTime,
                                       nsAString& stringOut)
 {
   struct tm tmTime;
   return FormatTMTime(locale, dateFormatSelector, timeFormatSelector, localtime_r(&timetTime, &tmTime), stringOut);
 }
 // performs a locale sensitive date formatting operation on the struct tm parameter
 nsresult nsDateTimeFormatMac::FormatTMTime(nsILocale* locale,
                                            const nsDateFormatSelector  dateFormatSelector,
                                            const nsTimeFormatSelector timeFormatSelector,
                                            const struct tm*  tmTime,
                                            nsAString& stringOut)
 {
   nsresult res = NS_OK;
   // set up locale data
   (void) Initialize(locale);
   // return, nothing to format
   if (dateFormatSelector == kDateFormatNone && timeFormatSelector == kTimeFormatNone) {
     stringOut.Truncate();
     return NS_OK;
   }
   NS_ASSERTION(tmTime->tm_mon >= 0, "tm is not set correctly");
   NS_ASSERTION(tmTime->tm_mday >= 1, "tm is not set correctly");
   NS_ASSERTION(tmTime->tm_hour >= 0, "tm is not set correctly");
   NS_ASSERTION(tmTime->tm_min >= 0, "tm is not set correctly");
   NS_ASSERTION(tmTime->tm_sec >= 0, "tm is not set correctly");
   NS_ASSERTION(tmTime->tm_wday >= 0, "tm is not set correctly");
   // Got the locale for the formatter:
   CFLocaleRef formatterLocale;
   if (!locale) {
     formatterLocale = CFLocaleCopyCurrent();
   } else {
     CFStringRef localeStr = CFStringCreateWithCharacters(nullptr,
                                                          reinterpret_cast<const UniChar*>(mLocale.get()),
                                                          mLocale.Length());
     formatterLocale = CFLocaleCreate(nullptr, localeStr);
     CFRelease(localeStr);
   }
   // Get the date style for the formatter:
   CFDateFormatterStyle dateStyle;
   switch (dateFormatSelector) {
     case kDateFormatLong:
       dateStyle = kCFDateFormatterLongStyle;
       break;
     case kDateFormatShort:
       dateStyle = kCFDateFormatterShortStyle;
       break;
     case kDateFormatYearMonth:
     case kDateFormatWeekday:
       dateStyle = kCFDateFormatterNoStyle; // formats handled below
       break;
     case kDateFormatNone:
       dateStyle = kCFDateFormatterNoStyle;
       break;
     default:
       NS_ERROR("Unknown nsDateFormatSelector");
       res = NS_ERROR_FAILURE;
       dateStyle = kCFDateFormatterNoStyle;
   }
   // Get the time style for the formatter:
   CFDateFormatterStyle timeStyle;
   switch (timeFormatSelector) {
     case kTimeFormatSeconds:
     case kTimeFormatSecondsForce24Hour: // 24 hour part fixed below
       timeStyle = kCFDateFormatterMediumStyle;
       break;
     case kTimeFormatNoSeconds:
     case kTimeFormatNoSecondsForce24Hour: // 24 hour part fixed below
       timeStyle = kCFDateFormatterShortStyle;
       break;
     case kTimeFormatNone:
       timeStyle = kCFDateFormatterNoStyle;
       break;
     default:
       NS_ERROR("Unknown nsTimeFormatSelector");
       res = NS_ERROR_FAILURE;
       timeStyle = kCFDateFormatterNoStyle;
   }
   // Create the formatter and fix up its formatting as necessary:
   CFDateFormatterRef formatter =
     CFDateFormatterCreate(nullptr, formatterLocale, dateStyle, timeStyle);
   CFRelease(formatterLocale);
   if (dateFormatSelector == kDateFormatYearMonth ||
       dateFormatSelector == kDateFormatWeekday) {
     CFStringRef dateFormat =
       dateFormatSelector == kDateFormatYearMonth ? CFSTR("yyyy/MM ") : CFSTR("EEE ");
     CFStringRef oldFormat = CFDateFormatterGetFormat(formatter);
     CFMutableStringRef newFormat = CFStringCreateMutableCopy(nullptr, 0, oldFormat);
     CFStringInsert(newFormat, 0, dateFormat);
     CFDateFormatterSetFormat(formatter, newFormat);
     CFRelease(newFormat); // note we don't own oldFormat
   }
   if (timeFormatSelector == kTimeFormatSecondsForce24Hour ||
       timeFormatSelector == kTimeFormatNoSecondsForce24Hour) {
     // Replace "h" with "H", and remove "a":
     CFStringRef oldFormat = CFDateFormatterGetFormat(formatter);
     CFMutableStringRef newFormat = CFStringCreateMutableCopy(nullptr, 0, oldFormat);
     CFIndex replaceCount = CFStringFindAndReplace(newFormat,
                                                   CFSTR("h"), CFSTR("H"),
                                                   CFRangeMake(0, CFStringGetLength(newFormat)),
 );
     NS_ASSERTION(replaceCount == 1, "Unexpected number of \"h\" occurrences");
     replaceCount = CFStringFindAndReplace(newFormat,
                                           CFSTR("a"), CFSTR(""),
                                           CFRangeMake(0, CFStringGetLength(newFormat)),
 );
     NS_ASSERTION(replaceCount == 1, "Unexpected number of \"a\" occurrences");
     CFDateFormatterSetFormat(formatter, newFormat);
     CFRelease(newFormat); // note we don't own oldFormat
   }
   // Now get the formatted date:
   CFGregorianDate date;
   date.second = tmTime->tm_sec;
   date.minute = tmTime->tm_min;
   date.hour = tmTime->tm_hour;
   date.day = tmTime->tm_mday;      // Mac is 1-based, tm is 1-based
   date.month = tmTime->tm_mon + 1; // Mac is 1-based, tm is 0-based
   date.year = tmTime->tm_year + 1900;
   CFTimeZoneRef timeZone = CFTimeZoneCopySystem(); // tmTime is in local time
   CFAbsoluteTime absTime = CFGregorianDateGetAbsoluteTime(date, timeZone);
   CFRelease(timeZone);
   CFStringRef formattedDate = CFDateFormatterCreateStringWithAbsoluteTime(nullptr,
                                                                           formatter,
                                                                           absTime);
   CFIndex stringLen = CFStringGetLength(formattedDate);
   nsAutoTArray<UniChar, 256> stringBuffer;
   stringBuffer.SetLength(stringLen + 1);
   CFStringGetCharacters(formattedDate, CFRangeMake(0, stringLen), stringBuffer.Elements());
   stringOut.Assign(reinterpret_cast<char16_t*>(stringBuffer.Elements()), stringLen);
   CFRelease(formattedDate);
   CFRelease(formatter);
   return res;
 }
 // performs a locale sensitive date formatting operation on the PRTime parameter
 nsresult nsDateTimeFormatMac::FormatPRTime(nsILocale* locale,
                                            const nsDateFormatSelector  dateFormatSelector,
                                            const nsTimeFormatSelector timeFormatSelector,
                                            const PRTime  prTime,
                                            nsAString& stringOut)
 {
   PRExplodedTime explodedTime;
   PR_ExplodeTime(prTime, PR_LocalTimeParameters, &explodedTime);
   return FormatPRExplodedTime(locale, dateFormatSelector, timeFormatSelector, &explodedTime, stringOut);
 }
 // performs a locale sensitive date formatting operation on the PRExplodedTime parameter
 nsresult nsDateTimeFormatMac::FormatPRExplodedTime(nsILocale* locale,
                                                    const nsDateFormatSelector  dateFormatSelector,
                                                    const nsTimeFormatSelector timeFormatSelector,
                                                    const PRExplodedTime*  explodedTime,
                                                    nsAString& stringOut)
 {
   struct tm  tmTime;
   memset( &tmTime, 0, sizeof(tmTime) );
   tmTime.tm_yday = explodedTime->tm_yday;
   tmTime.tm_wday = explodedTime->tm_wday;
   tmTime.tm_year = explodedTime->tm_year;
   tmTime.tm_year -= 1900;
   tmTime.tm_mon = explodedTime->tm_month;
   tmTime.tm_mday = explodedTime->tm_mday;
   tmTime.tm_hour = explodedTime->tm_hour;
   tmTime.tm_min = explodedTime->tm_min;
   tmTime.tm_sec = explodedTime->tm_sec;
   return FormatTMTime(locale, dateFormatSelector, timeFormatSelector, &tmTime, stringOut);
 }

The Tor Browser / annotate

intl/locale/src/mac/nsDateTimeFormatMac.cpp@925c144e1f1f (annotated)

intl/locale/src/mac/nsDateTimeFormatMac.cpp