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e28908046e
gecko-dev/intl/locale/src/mac/nsDateTimeFormatMac.cpp
nhotta%netscape.com e28908046e Bug #13488, changed to cache locale data.
1999-09-10 18:34:06 +00:00

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include "nsIServiceManager.h"
#include "nsICharsetConverterManager.h"
#include "nsDateTimeFormatMac.h"
#include <Resources.h>
#include <IntlResources.h>
#include <DateTimeUtils.h>
#include <Script.h>
#include <TextUtils.h>
#include "nsIComponentManager.h"
#include "nsLocaleCID.h"
#include "nsILocaleService.h"
#include "nsIPlatformCharset.h"
#include "nsIMacLocale.h"
#include "nsCRT.h"
#include "nsCOMPtr.h"
#include "plstr.h"
#include "prmem.h"
static NS_DEFINE_IID(kIDateTimeFormatIID, NS_IDATETIMEFORMAT_IID);
static NS_DEFINE_CID(kMacLocaleFactoryCID, NS_MACLOCALEFACTORY_CID);
static NS_DEFINE_CID(kCharsetConverterManagerCID, NS_ICHARSETCONVERTERMANAGER_CID);
static NS_DEFINE_CID(kLocaleServiceCID, NS_LOCALESERVICE_CID);
////////////////////////////////////////////////////////////////////////////////
static Intl1Hndl GetItl1Resource(short scriptcode, short regioncode)
{
long itl1num;
if (smRoman == scriptcode)
{
itl1num = regioncode; // if smRoman, use regioncode to differenciate
} else {
// get itlb from currenty system script
ItlbRecord **ItlbRecordHandle;
ItlbRecordHandle = (ItlbRecord **)::GetResource('itlb', scriptcode);
// get itl1 number from itlb resource, if possible
// otherwise, use the one return from script manager,
// (Script manager won't update itl1 number when the change on the fly )
if(ItlbRecordHandle != NULL)
{
if(*ItlbRecordHandle == NULL)
::LoadResource((Handle)ItlbRecordHandle);
if(*ItlbRecordHandle != NULL)
itl1num = (*ItlbRecordHandle)->itlbDate;
else
itl1num = ::GetScriptVariable(scriptcode, smScriptDate);
} else { // Use this as fallback
itl1num = ::GetScriptVariable(scriptcode, smScriptDate);
}
}
// get itl1 resource
Intl1Hndl Itl1RecordHandle;
Itl1RecordHandle = (Intl1Hndl)::GetResource('itl1', itl1num);
return Itl1RecordHandle;
}
static Intl0Hndl GetItl0Resource(short scriptcode, short regioncode)
{
long itl0num;
if (smRoman == scriptcode)
{
itl0num = regioncode; // if smRoman, use regioncode to differenciate
} else {
// get itlb from currenty system script
ItlbRecord **ItlbRecordHandle;
ItlbRecordHandle = (ItlbRecord **)::GetResource('itlb', scriptcode);
// get itl0 number from itlb resource, if possible
// otherwise, use the one return from script manager,
// (Script manager won't update itl1 number when the change on the fly )
if(ItlbRecordHandle != NULL)
{
if(*ItlbRecordHandle == NULL)
::LoadResource((Handle)ItlbRecordHandle);
if(*ItlbRecordHandle != NULL)
itl0num = (*ItlbRecordHandle)->itlbNumber;
else
itl0num = ::GetScriptVariable(scriptcode, smScriptNumber);
} else { // Use this as fallback
itl0num = ::GetScriptVariable(scriptcode, smScriptNumber);
}
}
// get itl1 resource
Intl0Hndl Itl0RecordHandle;
Itl0RecordHandle = (Intl0Hndl)::GetResource('itl0', itl0num);
return Itl0RecordHandle;
}
static void AbbrevWeekdayString(DateTimeRec &dateTime, Str255 weekdayString, Intl1Hndl Itl1RecordHandle )
{
Boolean gotit = false;
// If we can get itl1Resource, exam it.
if(Itl1RecordHandle != NULL )
{
if(*Itl1RecordHandle == NULL)
::LoadResource((Handle)Itl1RecordHandle);
if(*Itl1RecordHandle == NULL)
{
weekdayString[0] = 0;
return;
}
// if itl1 resource is in the itl1ExtRec format
// look at the additional table
// See IM-Text Appendix B for details
if((unsigned short)((*Itl1RecordHandle)->localRtn[0]) == 0xA89F)
{ // use itl1ExtRect
Itl1ExtRec **Itl1ExtRecHandle;
Itl1ExtRecHandle = (Itl1ExtRec **) Itl1RecordHandle;
// check abbrevDaysTableLength and abbrevDaysTableOffset
if(((*Itl1ExtRecHandle)->abbrevDaysTableLength != 0) &&
((*Itl1ExtRecHandle)->abbrevDaysTableOffset != 0))
{
// use the additional table for abbreviation weekday name
// Japanese use it.
// Start Pointer access to Handle, no HLock since we don't
// call any API here.
// Be careful when you debug- don't move memory :)
Ptr abTablePt;
short itemlen;
// Ok, change it back to range [0-6]
short weekday = dateTime.dayOfWeek - 1;
abTablePt = (Ptr)(*Itl1ExtRecHandle);
abTablePt += (*Itl1ExtRecHandle)->abbrevDaysTableOffset;
// first 2 byte in the table should be the count.
itemlen = (short) *((short*)abTablePt);
abTablePt += 2;
if(weekday < itemlen)
{
unsigned char len;
short i;
// iterate till we hit the weekday name we want
for(i = 0 ; i < weekday ; i++)
{
len = *abTablePt;
// shift to the next one. don't forget the len byte itself.
abTablePt += len + 1;
}
// Ok, we got it, let's copy it.
len = *abTablePt;
::BlockMoveData(abTablePt,&weekdayString[0] ,len+1);
gotit = true;
}
}
}
// didn't get it. Either it is not in itl1ExtRect format or it don't have
// additional abbreviation table.
// use itl1Rect instead.
if(! gotit)
{
// get abbreviation length
// not the length is not always 3. Some country use longer (say 4)
// abbreviation.
short abbrLen = (*Itl1RecordHandle)->abbrLen;
// Fix Traditional Chinese problem
if(((((*Itl1RecordHandle)->intl1Vers) >> 8) == verTaiwan ) &&
(abbrLen == 4) &&
((*Itl1RecordHandle)->days[0][0] == 6) &&
((*Itl1RecordHandle)->days[1][0] == 6) &&
((*Itl1RecordHandle)->days[2][0] == 6) &&
((*Itl1RecordHandle)->days[3][0] == 6) &&
((*Itl1RecordHandle)->days[4][0] == 6) &&
((*Itl1RecordHandle)->days[5][0] == 6) &&
((*Itl1RecordHandle)->days[6][0] == 6))
{
abbrLen = 6;
}
weekdayString[0] = abbrLen;
// copy the weekday name with that abbreviation length
::BlockMoveData(&((*Itl1RecordHandle)->days[dateTime.dayOfWeek-1][1]),
&weekdayString[1] , abbrLen);
gotit = true;
}
}
else
{ // cannot get itl1 resource, return with null string.
weekdayString[0] = 0;
}
}
////////////////////////////////////////////////////////////////////////////////
NS_IMPL_ISUPPORTS(nsDateTimeFormatMac, kIDateTimeFormatIID);
nsresult nsDateTimeFormatMac::Initialize(nsILocale* locale)
{
PRUnichar *aLocaleUnichar = NULL;
nsString aCategory("NSILOCALE_TIME");
nsresult res;
// use cached info if match with stored locale
if (NULL == locale) {
if (mLocale.Length() && mLocale.EqualsIgnoreCase(mAppLocale)) {
return NS_OK;
}
}
else {
res = locale->GetCategory(aCategory.GetUnicode(), &aLocaleUnichar);
if (NS_SUCCEEDED(res) && NULL != aLocaleUnichar) {
if (mLocale.Length() && mLocale.EqualsIgnoreCase(aLocaleUnichar)) {
nsAllocator::Free(aLocaleUnichar);
return NS_OK;
}
nsAllocator::Free(aLocaleUnichar);
}
}
mScriptcode = smSystemScript;
mLangcode = langEnglish;
mRegioncode = verUS;
mCharset.SetString("ISO-8859-1");
// get locale string, use app default if no locale specified
if (NULL == locale) {
nsILocaleService *localeService;
res = nsComponentManager::CreateInstance(kLocaleServiceCID, NULL,
nsILocaleService::GetIID(), (void**)&localeService);
if (NS_SUCCEEDED(res)) {
nsILocale *appLocale;
res = localeService->GetApplicationLocale(&appLocale);
localeService->Release();
if (NS_SUCCEEDED(res)) {
res = appLocale->GetCategory(aCategory.GetUnicode(), &aLocaleUnichar);
if (NS_SUCCEEDED(res) && NULL != aLocaleUnichar) {
mAppLocale.SetString(aLocaleUnichar); // cache app locale name
}
appLocale->Release();
}
}
}
else {
res = locale->GetCategory(aCategory.GetUnicode(), &aLocaleUnichar);
}
// Get a script code and charset name from locale, if available
if (NS_SUCCEEDED(res) && NULL != aLocaleUnichar) {
mLocale.SetString(aLocaleUnichar); // cache locale name
nsAllocator::Free(aLocaleUnichar);
nsCOMPtr <nsIMacLocale> macLocale;
res = nsComponentManager::CreateInstance(kMacLocaleFactoryCID, NULL,
nsIMacLocale::GetIID(), getter_AddRefs(macLocale));
if (NS_SUCCEEDED(res)) {
res = macLocale->GetPlatformLocale(&mLocale, &mScriptcode, &mLangcode, &mRegioncode);
}
nsCOMPtr <nsIPlatformCharset> platformCharset;
res = nsComponentManager::CreateInstance(kPlatformCharsetCID, NULL,
nsIPlatformCharset::GetIID(), getter_AddRefs(platformCharset));
if (NS_SUCCEEDED(res)) {
PRUnichar* mappedCharset = NULL;
res = platformCharset->GetDefaultCharsetForLocale(mLocale.GetUnicode(), &mappedCharset);
if (NS_SUCCEEDED(res) && mappedCharset) {
mCharset.SetString(mappedCharset);
nsAllocator::Free(mappedCharset);
}
}
}
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,
nsString& stringOut)
{
return FormatTMTime(locale, dateFormatSelector, timeFormatSelector, localtime(&timetTime), 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,
nsString& stringOut)
{
DateTimeRec macDateTime;
Str255 timeString, dateString;
int32 dateTime;
nsresult res;
// set up locale data
(void) Initialize(locale);
// return, nothing to format
if (dateFormatSelector == kDateFormatNone && timeFormatSelector == kTimeFormatNone) {
stringOut.SetString("");
return NS_OK;
}
stringOut.SetString(asctime(tmTime)); // set the default string, in case for API/conversion errors
// convert struct tm to input format of mac toolbox call
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");
macDateTime.year = tmTime->tm_year + 1900;
// Mac use 1 for Jan and 12 for Dec
// tm use 0 for Jan and 11 for Dec
macDateTime.month = tmTime->tm_mon + 1;
macDateTime.day = tmTime->tm_mday;
macDateTime.hour = tmTime->tm_hour;
macDateTime.minute = tmTime->tm_min;
macDateTime.second = tmTime->tm_sec;
// Mac use 1 for sunday 7 for saturday
// tm use 0 for sunday 6 for saturday
macDateTime.dayOfWeek = tmTime->tm_wday +1 ;
::DateToSeconds( &macDateTime, (unsigned long *) &dateTime);
Handle itl1Handle = (Handle) GetItl1Resource(mScriptcode, mRegioncode);
Handle itl0Handle = (Handle) GetItl0Resource(mScriptcode, mRegioncode);
NS_ASSERTION(itl1Handle && itl0Handle, "failed to get itl handle");
// get time string
if (timeFormatSelector != kTimeFormatNone) {
// modify itl0 to force 24 hour time cycle !
if (timeFormatSelector == kTimeFormatSecondsForce24Hour ||
timeFormatSelector == kTimeFormatNoSecondsForce24Hour) {
Intl0Hndl itl0HandleToModify = (Intl0Hndl) itl0Handle;
UInt8 timeCycle = (**itl0HandleToModify).timeCycle;
(**itl0HandleToModify).timeCycle = timeCycle24;
::TimeString(dateTime, (timeFormatSelector == kTimeFormatSeconds), timeString, itl0Handle);
(**itl0HandleToModify).timeCycle = timeCycle;
}
else {
::TimeString(dateTime, (timeFormatSelector == kTimeFormatSeconds), timeString, itl0Handle);
}
}
// get date string
switch (dateFormatSelector) {
case kDateFormatLong:
::DateString(dateTime, abbrevDate, dateString, itl1Handle);
break;
case kDateFormatShort:
::DateString(dateTime, shortDate, dateString, itl0Handle);
break;
case kDateFormatYearMonth:
dateString[0] = strftime((char*)&dateString[1],254,"%y/%m",tmTime);
break;
case kDateFormatWeekday:
AbbrevWeekdayString(macDateTime, dateString, (Intl1Hndl)itl1Handle);
// try fallback if it return with null string.
if(dateString[0] == 0) { // cannot get weekdayString from itl1 , try fallback
dateString[0] = strftime((char*)&dateString[1],254,"%a",tmTime);
}
break;
}
// construct a C string
char *aBuffer;
if (dateFormatSelector != kDateFormatNone && timeFormatSelector != kTimeFormatNone) {
aBuffer = p2cstr(dateString);
strcat(aBuffer, " ");
strcat(aBuffer, p2cstr(timeString));
}
else if (dateFormatSelector != kDateFormatNone) {
aBuffer = p2cstr(dateString);
}
else if (timeFormatSelector != kTimeFormatNone) {
aBuffer = p2cstr(timeString);
}
// convert result to unicode
NS_WITH_SERVICE(nsICharsetConverterManager, ccm, kCharsetConverterManagerCID, &res);
if(NS_SUCCEEDED(res) && ccm) {
nsCOMPtr <nsIUnicodeDecoder> decoder;
res = ccm->GetUnicodeDecoder(&mCharset, getter_AddRefs(decoder));
if(NS_SUCCEEDED(res) && decoder) {
PRInt32 unicharLength = 0;
PRInt32 srcLength = (PRInt32) PL_strlen(aBuffer);
res = decoder->GetMaxLength(aBuffer, srcLength, &unicharLength);
PRUnichar *unichars = new PRUnichar [ unicharLength ];
if (nsnull != unichars) {
res = decoder->Convert(aBuffer, &srcLength,
unichars, &unicharLength);
if (NS_SUCCEEDED(res)) {
stringOut.SetString(unichars, unicharLength);
}
}
delete [] unichars;
}
}
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,
nsString& 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,
nsString& stringOut)
{
struct tm tmTime;
nsCRT::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);
}
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