Implement taking date strings from messages locale.

* mimic LocaleKit and add option to POSIX locale backend for taking
  the date strings from the messages locale (instead of time locale)

headers/private/libroot/locale/ICUCategoryData.h

@@ -31,6 +31,8 @@ public:
 			const char*			PosixLocaleName()
 									{ return fPosixLocaleName; }
 
+			const Locale&		ICULocale() const;
+
 protected:
 			status_t			_ConvertUnicodeStringToLocaleconvEntry(
 									const UnicodeString& string,
@@ -52,6 +54,14 @@ private:
 };
 
 
+inline
+const Locale&
+ICUCategoryData::ICULocale() const
+{
+	return fLocale;
+}
+
+
 }	// namespace Libroot
 }	// namespace BPrivate
 

headers/private/libroot/locale/ICUTimeData.h

@@ -18,11 +18,15 @@ namespace BPrivate {
 namespace Libroot {
 
 
+class ICUMessagesData;
+
+
 class ICUTimeData : public ICUCategoryData {
 	typedef	ICUCategoryData		inherited;
 public:
 								ICUTimeData(pthread_key_t tlsKey,
-									struct lc_time_t& lcTimeInfo);
+									struct lc_time_t& lcTimeInfo,
+									const ICUMessagesData& messagesData);
 								~ICUTimeData();
 
 			void				Initialize(LocaleTimeDataBridge* dataBridge);
@@ -33,8 +37,6 @@ public:
 
 			const char*			GetLanginfo(int index);
 
-			const Locale&		ICULocale() const;
-
 private:
 			status_t			_SetLCTimeEntries(const UnicodeString* strings,
 									char* destination, int entrySize,
@@ -59,6 +61,8 @@ private:
 			struct lc_time_t&	fLCTimeInfo;
 
 			LocaleTimeDataBridge*	fDataBridge;
+
+			const ICUMessagesData&	fMessagesData;
 };
 
 

src/system/libroot/add-ons/icu/ICULocaleBackend.cpp

@@ -34,7 +34,7 @@ ICULocaleBackend::ICULocaleBackend()
 	fMessagesData(fThreadLocalStorageKey),
 	fMonetaryData(fThreadLocalStorageKey, fLocaleConv),
 	fNumericData(fThreadLocalStorageKey, fLocaleConv),
-	fTimeData(fThreadLocalStorageKey, fLCTimeInfo),
+	fTimeData(fThreadLocalStorageKey, fLCTimeInfo, fMessagesData),
 	fTimeConversion(fTimeData)
 {
 }

src/system/libroot/add-ons/icu/ICUTimeData.cpp

@@ -15,16 +15,19 @@
 
 #include <AutoDeleter.h>
 
+#include "ICUMessagesData.h"
 
 namespace BPrivate {
 namespace Libroot {
 
 
-ICUTimeData::ICUTimeData(pthread_key_t tlsKey, struct lc_time_t& lcTimeInfo)
+ICUTimeData::ICUTimeData(pthread_key_t tlsKey, struct lc_time_t& lcTimeInfo,
+	const ICUMessagesData& messagesData)
 	:
 	inherited(tlsKey),
 	fLCTimeInfo(lcTimeInfo),
-	fDataBridge(NULL)
+	fDataBridge(NULL),
+	fMessagesData(messagesData)
 {
 	for (int i = 0; i < 12; ++i) {
 		fLCTimeInfo.mon[i] = fMon[i];
@@ -66,7 +69,19 @@ ICUTimeData::SetTo(const Locale& locale, const char* posixLocaleName)
 		return result;
 
 	UErrorCode icuStatus = U_ZERO_ERROR;
-	DateFormatSymbols formatSymbols(fLocale, icuStatus);
+
+	// check if the date strings should be taken from the messages-locale
+	// or from the time-locale (default)
+	const Locale* symbolsLocale = &fLocale;
+	char stringsValue[16];
+	fLocale.getKeywordValue("strings", stringsValue, sizeof(stringsValue),
+		icuStatus);
+	if (U_SUCCESS(icuStatus) && strcasecmp(stringsValue, "messages") == 0)
+		symbolsLocale = &fMessagesData.ICULocale();
+	else
+		icuStatus = U_ZERO_ERROR;
+
+	DateFormatSymbols formatSymbols(*symbolsLocale, icuStatus);
 	if (!U_SUCCESS(icuStatus))
 		return B_UNSUPPORTED;
 
@@ -407,13 +422,5 @@ ICUTimeData::_SetLCTimePattern(DateFormat* format, char* destination,
 }
 
 
-const Locale&
-ICUTimeData::ICULocale() const
-{
-	return fLocale;
-
-}
-
-
 }	// namespace Libroot
 }	// namespace BPrivate