DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Header

Mercurial (fddffdeab170)

VCS Links

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266
/* -*- 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)),	
                                                  0);
    NS_ASSERTION(replaceCount <= 2, "Unexpected number of \"h\" occurrences");
    replaceCount = CFStringFindAndReplace(newFormat,
                                          CFSTR("a"), CFSTR(""),
                                          CFRangeMake(0, CFStringGetLength(newFormat)),	
                                          0);
    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);
}