gecko-dev/intl/locale/nsScriptableDateFormat.cpp

146 строки
5.0 KiB
C++

/* -*- 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/Snprintf.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];
snprintf_literal(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;
}