summaryrefslogtreecommitdiffstats
path: root/intl/locale/nsScriptableDateFormat.cpp
blob: a75cdaf29f1d9a9f156ba66341fa7930df77d76c (plain)
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
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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 "mozilla/Sprintf.h"
#include "nsILocaleService.h"
#include "nsDateTimeFormatCID.h"
#include "nsIDateTimeFormat.h"
#include "nsIScriptableDateFormat.h"
#include "nsCOMPtr.h"
#include "nsServiceManagerUtils.h"

static NS_DEFINE_CID(kLocaleServiceCID, NS_LOCALESERVICE_CID);
static NS_DEFINE_CID(kDateTimeFormatCID, NS_DATETIMEFORMAT_CID);

class nsScriptableDateFormat : public nsIScriptableDateFormat {
 public: 
  NS_DECL_ISUPPORTS 

  NS_IMETHOD FormatDateTime(const char16_t *locale, 
                            nsDateFormatSelector dateFormatSelector, 
                            nsTimeFormatSelector timeFormatSelector, 
                            int32_t year, 
                            int32_t month, 
                            int32_t day, 
                            int32_t hour, 
                            int32_t minute, 
                            int32_t second, 
                            char16_t **dateTimeString) override;

  NS_IMETHOD FormatDate(const char16_t *locale, 
                        nsDateFormatSelector dateFormatSelector, 
                        int32_t year, 
                        int32_t month, 
                        int32_t day, 
                        char16_t **dateString) override
                        {return FormatDateTime(locale, dateFormatSelector, kTimeFormatNone, 
                                               year, month, day, 0, 0, 0, dateString);}

  NS_IMETHOD FormatTime(const char16_t *locale, 
                        nsTimeFormatSelector timeFormatSelector, 
                        int32_t hour, 
                        int32_t minute, 
                        int32_t second, 
                        char16_t **timeString) override
                        {return FormatDateTime(locale, kDateFormatNone, timeFormatSelector, 
                                               1999, 1, 1, hour, minute, second, timeString);}

  nsScriptableDateFormat() {}

private:
  nsString mStringOut;   

  virtual ~nsScriptableDateFormat() {}
};

NS_IMPL_ISUPPORTS(nsScriptableDateFormat, nsIScriptableDateFormat)

NS_IMETHODIMP nsScriptableDateFormat::FormatDateTime(
                            const char16_t *aLocale, 
                            nsDateFormatSelector dateFormatSelector, 
                            nsTimeFormatSelector timeFormatSelector, 
                            int32_t year, 
                            int32_t month, 
                            int32_t day, 
                            int32_t hour, 
                            int32_t minute, 
                            int32_t second, 
                            char16_t **dateTimeString)
{
  // We can't have a valid date with the year, month or day
  // being lower than 1.
  if (year < 1 || month < 1 || day < 1)
    return NS_ERROR_INVALID_ARG;

  nsresult rv;
  nsAutoString localeName(aLocale);
  *dateTimeString = nullptr;

  nsCOMPtr<nsILocale> locale;
  // re-initialise locale pointer only if the locale was given explicitly
  if (!localeName.IsEmpty()) {
    // get locale service
    nsCOMPtr<nsILocaleService> localeService(do_GetService(kLocaleServiceCID, &rv));
    NS_ENSURE_SUCCESS(rv, rv);
    // get locale
    rv = localeService->NewLocale(localeName, getter_AddRefs(locale));
    NS_ENSURE_SUCCESS(rv, rv);
  }

  nsCOMPtr<nsIDateTimeFormat> dateTimeFormat(do_CreateInstance(kDateTimeFormatCID, &rv));
  NS_ENSURE_SUCCESS(rv, rv);

  tm tmTime;
  time_t timetTime;

  memset(&tmTime, 0, sizeof(tmTime));
  tmTime.tm_year = year - 1900;
  tmTime.tm_mon = month - 1;
  tmTime.tm_mday = day;
  tmTime.tm_hour = hour;
  tmTime.tm_min = minute;
  tmTime.tm_sec = second;
  tmTime.tm_yday = tmTime.tm_wday = 0;
  tmTime.tm_isdst = -1;
  timetTime = mktime(&tmTime);

  if ((time_t)-1 != timetTime) {
    rv = dateTimeFormat->FormatTime(locale, dateFormatSelector, timeFormatSelector, 
                                     timetTime, mStringOut);
  }
  else {
    // if mktime fails (e.g. year <= 1970), then try NSPR.
    PRTime prtime;
    char string[32];
    SprintfLiteral(string, "%.2d/%.2d/%d %.2d:%.2d:%.2d", month, day, year, hour, minute, second);
    if (PR_SUCCESS != PR_ParseTimeString(string, false, &prtime))
      return NS_ERROR_INVALID_ARG;

    rv = dateTimeFormat->FormatPRTime(locale, dateFormatSelector, timeFormatSelector, 
                                      prtime, mStringOut);
  }
  if (NS_SUCCEEDED(rv))
    *dateTimeString = ToNewUnicode(mStringOut);

  return rv;
}

nsresult
NS_NewScriptableDateFormat(nsISupports* aOuter, REFNSIID aIID, void** aResult)
{
  if (aOuter)
    return NS_ERROR_NO_AGGREGATION;

  nsScriptableDateFormat* result = new nsScriptableDateFormat();
  if (! result)
    return NS_ERROR_OUT_OF_MEMORY;

  NS_ADDREF(result);
  nsresult rv = result->QueryInterface(aIID, aResult);
  NS_RELEASE(result);

  return rv;
}