* Locale Roster : add a function to update the settings from a BMessage

* Locale preference : send such a message broadcast to all applications when the settings are changed
 * Deskbar : receive the message and forward it to the locale roster. This way the time display on the deskbar changes as 
soon as you close the locale preflet.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37663 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/apps/deskbar/BarApp.cpp

@@ -513,6 +513,12 @@ TBarApp::MessageReceived(BMessage* message)
 			break;
 		}
 
+		case B_LOCALE_CHANGED:
+		{
+			be_locale_roster->UpdateSettings(message);
+			break;
+		}
+
 		default:
 			BApplication::MessageReceived(message);
 			break;

src/kits/locale/LocaleRoster.cpp

@@ -193,6 +193,7 @@ struct RosterData {
 	void InitializeCatalogAddOns();
 	void CleanupCatalogAddOns();
 	static int CompareInfos(const void *left, const void *right);
+	void UpdateSettings(BMessage* newSettings);
 };
 static RosterData gRosterData;
 
@@ -201,8 +202,6 @@ RosterData::RosterData()
 	:
 	fLock("LocaleRosterData")
 {
-	BAutolock lock(fLock);
-	assert(lock.IsLocked());
 
 	openlog_team("liblocale.so", LOG_PID, LOG_USER);
 #ifndef DEBUG
@@ -219,43 +218,7 @@ RosterData::RosterData()
 		BMessage settingsMessage;
 		if (file.SetTo(path.Path(), B_READ_ONLY) == B_OK
 				&& settingsMessage.Unflatten(&file) == B_OK) {
-			BString langName;
+			UpdateSettings(&settingsMessage);
-			if (settingsMessage.FindString("language", &langName) == B_OK) {
-				UErrorCode icuError = U_ZERO_ERROR;
-				Locale icuLocale = Locale::createCanonical(langName.String());
-				assert(!icuLocale.isBogus());
-				UnicodeString ustr;
-				BString bstr;
-				BStringByteSink bbs(&bstr);
-				icuLocale.getDisplayName(ustr);
-				ustr.toUTF8(bbs);
-
-				Locale::setDefault(icuLocale, icuError);
-				assert(icuError == U_ZERO_ERROR);
-				fPreferredLanguages.RemoveName("language");
-				for (int i = 0; settingsMessage.FindString("language", i,
-						&langName) == B_OK; i++) {
-					fPreferredLanguages.AddString("language", langName);
-				}
-			} else
-				fPreferredLanguages.AddString("language", "en");
-
-			BString codeName;
-
-			if (settingsMessage.FindString("country", &codeName)
-					== B_OK)
-				fDefaultCountry = BCountry(codeName);
-			else
-				fDefaultCountry = BCountry("en_US");
-
-			BString timeFormat;
-			if (settingsMessage.FindString("shortTimeFormat", &timeFormat)
-					== B_OK)
-				fDefaultCountry.SetTimeFormat(timeFormat, false);
-			if (settingsMessage.FindString("longTimeFormat", &timeFormat)
-					== B_OK)
-				fDefaultCountry.SetTimeFormat(timeFormat, true);
-
 			return;
 		}
 	}
@@ -574,6 +537,58 @@ BLocaleRoster::SetDefaultCountry(BCountry* newDefault) const
 }
 
 
+void
+BLocaleRoster::UpdateSettings(BMessage* newSettings)
+{
+	gRosterData.UpdateSettings(newSettings);
+}
+
+
+void
+RosterData::UpdateSettings(BMessage* newSettings)
+{
+	BAutolock lock(fLock);
+	assert(lock.IsLocked());
+
+	BString langName;
+	if (newSettings->FindString("language", &langName) == B_OK) {
+		UErrorCode icuError = U_ZERO_ERROR;
+		Locale icuLocale = Locale::createCanonical(langName.String());
+		assert(!icuLocale.isBogus());
+		UnicodeString ustr;
+		BString bstr;
+		BStringByteSink bbs(&bstr);
+		icuLocale.getDisplayName(ustr);
+		ustr.toUTF8(bbs);
+
+		Locale::setDefault(icuLocale, icuError);
+		assert(icuError == U_ZERO_ERROR);
+		fPreferredLanguages.RemoveName("language");
+		for (int i = 0; newSettings->FindString("language", i,
+					&langName) == B_OK; i++) {
+			fPreferredLanguages.AddString("language", langName);
+		}
+	} else
+		fPreferredLanguages.AddString("language", "en");
+
+	BString codeName;
+
+	if (newSettings->FindString("country", &codeName)
+			== B_OK)
+		fDefaultCountry = BCountry(codeName);
+	else
+		fDefaultCountry = BCountry("en_US");
+
+	BString timeFormat;
+	if (newSettings->FindString("shortTimeFormat", &timeFormat)
+			== B_OK)
+		fDefaultCountry.SetTimeFormat(timeFormat, false);
+	if (newSettings->FindString("longTimeFormat", &timeFormat)
+			== B_OK)
+		fDefaultCountry.SetTimeFormat(timeFormat, true);
+}
+
+
 status_t
 BLocaleRoster::GetPreferredLanguages(BMessage* languages) const
 {

src/preferences/locale/LocaleSettings.cpp

@@ -7,7 +7,9 @@
 #include "LocaleSettings.h"
 
 #include <FindDirectory.h>
+#include <LocaleRoster.h>
 #include <Path.h>
+#include <Roster.h>
 #include <String.h>
 #include <SupportDefs.h>
 
@@ -44,6 +46,11 @@ LocaleSettings::Load()
 status_t
 LocaleSettings::Save()
 {
+	// Send to all running apps to notify them they should update their settings
+	fMessage.what = B_LOCALE_CHANGED;
+	be_roster->Broadcast(&fMessage);
+
+	// Save on disk for next time we reboot
 	BFile file;
 	status_t err;
 	err = _Open(&file, B_CREATE_FILE | B_ERASE_FILE | B_WRITE_ONLY);