mirror of
https://github.com/classilla/tenfourfox.git
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285 lines
9.8 KiB
C++
285 lines
9.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include <locale.h>
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#include "plstr.h"
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#include "nsIServiceManager.h"
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#include "nsDateTimeFormatUnix.h"
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#include "nsIComponentManager.h"
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#include "nsILocaleService.h"
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#include "nsIPlatformCharset.h"
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#include "nsPosixLocale.h"
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#include "nsCRT.h"
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#include "nsReadableUtils.h"
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#include "nsUnicharUtils.h"
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#include "mozilla/dom/EncodingUtils.h"
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using mozilla::dom::EncodingUtils;
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NS_IMPL_ISUPPORTS(nsDateTimeFormatUnix, nsIDateTimeFormat)
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// init this interface to a specified locale
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nsresult nsDateTimeFormatUnix::Initialize(nsILocale* locale)
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{
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nsAutoString localeStr;
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NS_NAMED_LITERAL_STRING(aCategory, "NSILOCALE_TIME##PLATFORM");
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nsresult res = NS_OK;
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// use cached info if match with stored locale
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if (!locale) {
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if (!mLocale.IsEmpty() &&
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mLocale.Equals(mAppLocale, nsCaseInsensitiveStringComparator())) {
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return NS_OK;
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}
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}
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else {
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res = locale->GetCategory(aCategory, localeStr);
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if (NS_SUCCEEDED(res) && !localeStr.IsEmpty()) {
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if (!mLocale.IsEmpty() &&
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mLocale.Equals(localeStr,
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nsCaseInsensitiveStringComparator())) {
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return NS_OK;
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}
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}
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}
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mCharset.AssignLiteral("windows-1252");
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mPlatformLocale.AssignLiteral("en_US");
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// get locale name string, use app default if no locale specified
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if (!locale) {
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nsCOMPtr<nsILocaleService> localeService =
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do_GetService(NS_LOCALESERVICE_CONTRACTID, &res);
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if (NS_SUCCEEDED(res)) {
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nsCOMPtr<nsILocale> appLocale;
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res = localeService->GetApplicationLocale(getter_AddRefs(appLocale));
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if (NS_SUCCEEDED(res)) {
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res = appLocale->GetCategory(aCategory, localeStr);
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if (NS_SUCCEEDED(res) && !localeStr.IsEmpty()) {
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NS_ASSERTION(NS_SUCCEEDED(res), "failed to get app locale info");
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mAppLocale = localeStr; // cache app locale name
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}
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}
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}
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}
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else {
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res = locale->GetCategory(aCategory, localeStr);
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NS_ASSERTION(NS_SUCCEEDED(res), "failed to get locale info");
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}
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if (NS_SUCCEEDED(res) && !localeStr.IsEmpty()) {
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mLocale = localeStr; // cache locale name
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nsPosixLocale::GetPlatformLocale(mLocale, mPlatformLocale);
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nsCOMPtr <nsIPlatformCharset> platformCharset = do_GetService(NS_PLATFORMCHARSET_CONTRACTID, &res);
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if (NS_SUCCEEDED(res)) {
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nsAutoCString mappedCharset;
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res = platformCharset->GetDefaultCharsetForLocale(mLocale, mappedCharset);
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if (NS_SUCCEEDED(res)) {
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mCharset = mappedCharset;
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}
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}
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}
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mDecoder = EncodingUtils::DecoderForEncoding(mCharset);
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LocalePreferred24hour();
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return res;
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}
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void nsDateTimeFormatUnix::LocalePreferred24hour()
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{
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char str[100];
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time_t tt;
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struct tm *tmc;
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int i;
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tt = time(nullptr);
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tmc = localtime(&tt);
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tmc->tm_hour=22; // put the test sample hour to 22:00 which is 10PM
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tmc->tm_min=0; // set the min & sec other number than '2'
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tmc->tm_sec=0;
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char *temp = setlocale(LC_TIME, mPlatformLocale.get());
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strftime(str, (size_t)99, "%X", (struct tm *)tmc);
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(void) setlocale(LC_TIME, temp);
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mLocalePreferred24hour = false;
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for (i=0; str[i]; i++) {
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if (str[i] == '2') { // if there is any '2', that locale use 0-23 time format
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mLocalePreferred24hour = true;
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break;
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}
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}
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mLocaleAMPMfirst = true;
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if (mLocalePreferred24hour == false) {
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if (str[0] && str[0] == '1') { // if the first character is '1' of 10:00,
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// AMPM string is located after 10:00
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mLocaleAMPMfirst = false;
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}
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}
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}
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nsresult nsDateTimeFormatUnix::FormatTime(nsILocale* locale,
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const nsDateFormatSelector dateFormatSelector,
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const nsTimeFormatSelector timeFormatSelector,
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const time_t timetTime,
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nsAString& stringOut)
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{
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struct tm tmTime;
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memcpy(&tmTime, localtime(&timetTime), sizeof(struct tm));
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return FormatTMTime(locale, dateFormatSelector, timeFormatSelector, &tmTime, stringOut);
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}
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// performs a locale sensitive date formatting operation on the struct tm parameter
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nsresult nsDateTimeFormatUnix::FormatTMTime(nsILocale* locale,
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const nsDateFormatSelector dateFormatSelector,
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const nsTimeFormatSelector timeFormatSelector,
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const struct tm* tmTime,
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nsAString& stringOut)
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{
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#define NSDATETIME_FORMAT_BUFFER_LEN 80
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char strOut[NSDATETIME_FORMAT_BUFFER_LEN*2]; // buffer for date and time
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char fmtD[NSDATETIME_FORMAT_BUFFER_LEN], fmtT[NSDATETIME_FORMAT_BUFFER_LEN];
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nsresult rv;
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// set up locale data
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(void) Initialize(locale);
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NS_ENSURE_TRUE(mDecoder, NS_ERROR_NOT_INITIALIZED);
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// set date format
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if (dateFormatSelector == kDateFormatLong && timeFormatSelector == kTimeFormatSeconds) {
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PL_strncpy(fmtD, "%c", NSDATETIME_FORMAT_BUFFER_LEN);
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PL_strncpy(fmtT, "", NSDATETIME_FORMAT_BUFFER_LEN);
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} else {
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switch (dateFormatSelector) {
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case kDateFormatNone:
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PL_strncpy(fmtD, "", NSDATETIME_FORMAT_BUFFER_LEN);
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break;
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case kDateFormatLong:
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case kDateFormatShort:
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PL_strncpy(fmtD, "%x", NSDATETIME_FORMAT_BUFFER_LEN);
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break;
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case kDateFormatYearMonth:
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PL_strncpy(fmtD, "%Y/%m", NSDATETIME_FORMAT_BUFFER_LEN);
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break;
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case kDateFormatWeekday:
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PL_strncpy(fmtD, "%a", NSDATETIME_FORMAT_BUFFER_LEN);
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break;
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default:
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PL_strncpy(fmtD, "", NSDATETIME_FORMAT_BUFFER_LEN);
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}
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// set time format
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switch (timeFormatSelector) {
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case kTimeFormatNone:
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PL_strncpy(fmtT, "", NSDATETIME_FORMAT_BUFFER_LEN);
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break;
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case kTimeFormatSeconds:
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PL_strncpy(fmtT, "%X", NSDATETIME_FORMAT_BUFFER_LEN);
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break;
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case kTimeFormatNoSeconds:
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PL_strncpy(fmtT,
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mLocalePreferred24hour ? "%H:%M" : mLocaleAMPMfirst ? "%p %I:%M" : "%I:%M %p",
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NSDATETIME_FORMAT_BUFFER_LEN);
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break;
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case kTimeFormatSecondsForce24Hour:
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PL_strncpy(fmtT, "%H:%M:%S", NSDATETIME_FORMAT_BUFFER_LEN);
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break;
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case kTimeFormatNoSecondsForce24Hour:
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PL_strncpy(fmtT, "%H:%M", NSDATETIME_FORMAT_BUFFER_LEN);
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break;
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default:
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PL_strncpy(fmtT, "", NSDATETIME_FORMAT_BUFFER_LEN);
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}
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}
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// generate data/time string
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char *old_locale = setlocale(LC_TIME, nullptr);
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(void) setlocale(LC_TIME, mPlatformLocale.get());
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if (strlen(fmtD) && strlen(fmtT)) {
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PL_strncat(fmtD, " ", NSDATETIME_FORMAT_BUFFER_LEN);
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PL_strncat(fmtD, fmtT, NSDATETIME_FORMAT_BUFFER_LEN);
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strftime(strOut, NSDATETIME_FORMAT_BUFFER_LEN, fmtD, tmTime);
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}
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else if (strlen(fmtD) && !strlen(fmtT)) {
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strftime(strOut, NSDATETIME_FORMAT_BUFFER_LEN, fmtD, tmTime);
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}
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else if (!strlen(fmtD) && strlen(fmtT)) {
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strftime(strOut, NSDATETIME_FORMAT_BUFFER_LEN, fmtT, tmTime);
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}
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else {
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PL_strncpy(strOut, "", NSDATETIME_FORMAT_BUFFER_LEN);
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}
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(void) setlocale(LC_TIME, old_locale);
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// convert result to unicode
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int32_t srcLength = (int32_t) strlen(strOut);
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int32_t unicharLength = NSDATETIME_FORMAT_BUFFER_LEN*2;
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char16_t unichars[NSDATETIME_FORMAT_BUFFER_LEN*2]; // buffer for date and time
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rv = mDecoder->Convert(strOut, &srcLength, unichars, &unicharLength);
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if (NS_FAILED(rv))
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return rv;
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stringOut.Assign(unichars, unicharLength);
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return rv;
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}
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// performs a locale sensitive date formatting operation on the PRTime parameter
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nsresult nsDateTimeFormatUnix::FormatPRTime(nsILocale* locale,
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const nsDateFormatSelector dateFormatSelector,
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const nsTimeFormatSelector timeFormatSelector,
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const PRTime prTime,
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nsAString& stringOut)
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{
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PRExplodedTime explodedTime;
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PR_ExplodeTime(prTime, PR_LocalTimeParameters, &explodedTime);
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return FormatPRExplodedTime(locale, dateFormatSelector, timeFormatSelector, &explodedTime, stringOut);
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}
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// performs a locale sensitive date formatting operation on the PRExplodedTime parameter
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nsresult nsDateTimeFormatUnix::FormatPRExplodedTime(nsILocale* locale,
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const nsDateFormatSelector dateFormatSelector,
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const nsTimeFormatSelector timeFormatSelector,
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const PRExplodedTime* explodedTime,
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nsAString& stringOut)
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{
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struct tm tmTime;
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/* be safe and set all members of struct tm to zero
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*
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* there are other fields in the tm struct that we aren't setting
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* (tm_isdst, tm_gmtoff, tm_zone, should we set these?) and since
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* tmTime is on the stack, it may be filled with garbage, but
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* the garbage may vary. (this may explain why some saw bug #10412, and
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* others did not.
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*
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* when tmTime is passed to strftime() with garbage bad things may happen.
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* see bug #10412
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*/
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memset( &tmTime, 0, sizeof(tmTime) );
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tmTime.tm_yday = explodedTime->tm_yday;
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tmTime.tm_wday = explodedTime->tm_wday;
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tmTime.tm_year = explodedTime->tm_year;
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tmTime.tm_year -= 1900;
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tmTime.tm_mon = explodedTime->tm_month;
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tmTime.tm_mday = explodedTime->tm_mday;
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tmTime.tm_hour = explodedTime->tm_hour;
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tmTime.tm_min = explodedTime->tm_min;
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tmTime.tm_sec = explodedTime->tm_sec;
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return FormatTMTime(locale, dateFormatSelector, timeFormatSelector, &tmTime, stringOut);
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}
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