* Extend the Model class with a method bool HasLocalizedName().

* Disallow renaming of entries with localized names for now - this is meant to be temporary - and so far only in Tracker's Info window. Renames do not result in a change, visually, as the localized name hides the real name, and results in a bad user experience. One could possibly allow renames of the localized name, writing it back to the catalog. I've experimented with using BCatalogAddOn::SetString() but haven't been able to make it stick yet.
* Disallow renaming Trash in Tracker's Info window via Command-E.
* Adjust the argument order of BLocaleRoster::GetLocalizedFileName().
* Add a BLocaleRoster::GetLocalizedFileName() variant to look up another app's name given its signature and unlocalized, canonical name.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41126 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/os/locale/LocaleRoster.h

@@ -68,10 +68,14 @@ public:
 
 			bool				IsFilesystemTranslationPreferred() const;
 
-			status_t			GetLocalizedFileName(const entry_ref& ref,
-									BString& localizedFileName,
+			status_t			GetLocalizedFileName(BString& localizedFileName,
+									const entry_ref& ref,
 									bool traverse = false);
 
+			status_t			GetLocalizedFileName(BString& localizedFileName,
+									const char* signature, const char* context,
+									const char* string);
+
 	static	const char*			kCatLangAttr;
 	static	const char*			kCatSigAttr;
 	static	const char*			kCatFingerprintAttr;
@@ -82,6 +86,10 @@ public:
 private:
 	static	BCatalog*			_GetCatalog(BCatalog* catalog,
 									vint32* catalogInitStatus);
+
+			status_t			_PrepareCatalogEntry(const entry_ref& ref,
+									BString& signature, BString& context,
+									BString& string, bool traverse);
 };
 
 

src/apps/deskbar/BarApp.cpp

@@ -620,7 +620,7 @@ TBarApp::AddTeam(team_id team, uint32 flags, const char* sig, entry_ref* ref)
 
 	BString name;
 	if (!gLocalizedNamePreferred
-		|| BLocaleRoster::Default()->GetLocalizedFileName(*ref, name) != B_OK)
+		|| BLocaleRoster::Default()->GetLocalizedFileName(name, *ref) != B_OK)
 		name = ref->name;
 
 	BarTeamInfo* barInfo = new BarTeamInfo(new BList(), flags, strdup(sig),

src/bin/query.cpp

@@ -94,7 +94,7 @@ perform_query(BVolume &volume, const char *predicate)
 			entry_ref ref;
 
 			if (entry.GetRef(&ref) != B_OK || BLocaleRoster::Default()
-				->GetLocalizedFileName(ref, string) != B_OK)
+				->GetLocalizedFileName(string, ref) != B_OK)
 				continue;
 
 			if (string.IFindFirst(predicate) < 0)

src/kits/locale/LocaleRoster.cpp

@@ -381,11 +381,10 @@ BLocaleRoster::IsFilesystemTranslationPreferred() const
 }
 
 
-/*!	\brief Looks up a localized filename in a catalog, using attribute data
-		on the entry.
-	\param ref An entry_ref with an attribute holding data for catalog lookup.
+/*!	\brief Looks up a localized filename from a catalog.
 	\param localizedFileName A pre-allocated BString object for the result
 		of the lookup.
+	\param ref An entry_ref with an attribute holding data for catalog lookup.
 	\param traverse A boolean to decide if symlinks are to be traversed.
 	\return
 	- \c B_OK: success
@@ -400,8 +399,56 @@ BLocaleRoster::IsFilesystemTranslationPreferred() const
 	Lookup fails if a comment is present in the catalog entry.
 */
 status_t
-BLocaleRoster::GetLocalizedFileName(const entry_ref& ref,
-	BString& localizedFileName, bool traverse)
+BLocaleRoster::GetLocalizedFileName(BString& localizedFileName,
+	const entry_ref& ref, bool traverse)
+{
+	BString signature;
+	BString context;
+	BString string;
+	
+	status_t status = _PrepareCatalogEntry(ref, signature, context, string,
+		traverse);
+
+	if (status != B_OK)
+		return status;
+
+	return GetLocalizedFileName(localizedFileName, signature, context, string);
+}
+
+
+/*!	\brief Looks up a localized filename from a catalog.
+	\param localizedFileName A pre-allocated BString object for the result
+		of the lookup.
+	\param signature The "x-vnd..." part of an application signature.
+	\param context A catalog context. Likely B_TRANSLATE_SYSTEM_NAME_CONTEXT.
+	\param string A catalog string entry. Likely the unlocalized app name.
+	\return
+	- \c B_OK: success
+	- \c B_ENTRY_NOT_FOUND: failure. Catalog entry not found in catalog, etc
+	- other error codes: failure
+
+	Lookup is done for the top preferred language, only.
+	Lookup fails if a comment is present in the catalog entry.
+*/
+status_t
+BLocaleRoster::GetLocalizedFileName(BString& localizedFileName,
+	const char* signature, const char* context, const char* string)
+{
+	BCatalog catalog(signature);
+
+	const char* temp = catalog.GetString(string, context);
+
+	if (temp == NULL)
+		return B_ENTRY_NOT_FOUND;
+
+	localizedFileName = temp;
+	return B_OK;
+}
+
+
+status_t
+BLocaleRoster::_PrepareCatalogEntry(const entry_ref& ref, BString& signature,
+	BString& context, BString& string, bool traverse)
 {
 	BEntry entry(&ref, traverse);
 	if (!entry.Exists())
@@ -412,44 +459,26 @@ BLocaleRoster::GetLocalizedFileName(const entry_ref& ref,
 	if (status != B_OK)
 		return status;
 
-	attr_info attr;
-	status = node.GetAttrInfo("SYS:NAME", &attr);
+	status = node.ReadAttrString("SYS:NAME", &signature);
 	if (status != B_OK)
 		return status;
 
-	char attribute[attr.size + 1];
-	ssize_t bytes = node.ReadAttr("SYS:NAME", B_MIME_TYPE, 0, &attribute,
-		attr.size);
-
-	if (bytes < 0)
-		return bytes;
-	
-	if (bytes == 0 || bytes != attr.size)
+	int32 first = signature.FindFirst(':');
+	int32 last = signature.FindLast(':');
+	if (first == last)
 		return B_ENTRY_NOT_FOUND;
 
-	attribute[bytes] = '\0';
+	context = signature;
+	string = signature;
 
-	char* signature = attribute;
-	char* context = strchr(signature, ':');
-	if (context == NULL)
+	signature.Truncate(first);
+	context.Truncate(last);
+	context.Remove(0, first + 1);
+	string.Remove(0, last + 1);
+
+	if (signature.Length() == 0 || context.Length() == 0
+		|| string.Length() == 0)
 		return B_ENTRY_NOT_FOUND;
 
-	context[0] = '\0';
-	context++;
-
-	char* string = strchr(context, ':');
-	if (string == NULL)
-		return B_ENTRY_NOT_FOUND;
-
-	string[0] = '\0';
-	string++;
-
-	BCatalog catalog(signature);
-
-	const char* temp = catalog.GetString(string, context);
-	if (temp == NULL)
-		return B_ENTRY_NOT_FOUND;
-
-	localizedFileName = temp;
 	return B_OK;
 }

src/kits/tracker/FilePanelPriv.cpp

@@ -782,7 +782,7 @@ TFilePanel::Init(const BMessage *)
 	if (be_app->GetAppInfo(&info) == B_OK) {
 		if (!gLocalizedNamePreferred
 			|| BLocaleRoster::Default()->GetLocalizedFileName(
-				info.ref, title, false) != B_OK)
+				title, info.ref, false) != B_OK)
 			title = info.ref.name;
 		title << ": ";
 	}

src/kits/tracker/InfoWindow.cpp

@@ -299,7 +299,9 @@ BInfoWindow::BInfoWindow(Model *model, int32 group_index, LockingList<BWindow> *
 	if (list)
 		list->AddItem(this);
 
-	AddShortcut('E', 0, new BMessage(kEditItem));
+	if (!model->IsTrash() && !model->HasLocalizedName())
+		AddShortcut('E', 0, new BMessage(kEditItem));
+
 	AddShortcut('O', 0, new BMessage(kOpenSelection));
 	AddShortcut('U', 0, new BMessage(kUnmountVolume));
 	AddShortcut('P', 0, new BMessage(kPermissionsSelected));
@@ -1222,6 +1224,7 @@ AttributeView::MouseDown(BPoint point)
 	} else if (fTitleRect.Contains(point)) {
 		// You can't change the name of the trash
 		if (!fModel->IsTrash()
+			&& !fModel->HasLocalizedName()
 			&& ConfirmChangeIfWellKnownDirectory(&entry,
 				B_TRANSLATE_COMMENT("rename", "As in 'If you rename ...'"),
 				B_TRANSLATE_COMMENT("rename", "As in 'To rename ...'"), true)
@@ -2037,9 +2040,11 @@ AttributeView::BuildContextMenu(BMenu *parent)
 		new BMessage(kOpenSelection), 'O'));
 
 	if (!model.IsTrash()) {
-		parent->AddItem(new BMenuItem(B_TRANSLATE("Edit name"),
-			new BMessage(kEditItem), 'E'));
-		parent->AddSeparatorItem();
+		if (!fModel->HasLocalizedName()) {
+			parent->AddItem(new BMenuItem(B_TRANSLATE("Edit name"),
+				new BMessage(kEditItem), 'E'));
+			parent->AddSeparatorItem();
+		}
 		if (fModel->IsVolume()) {
 			BMenuItem* item = new BMenuItem(B_TRANSLATE("Unmount"),
 				new BMessage(kUnmountVolume), 'U');

src/kits/tracker/Model.cpp

@@ -568,7 +568,7 @@ void
 Model::CacheLocalizedName()
 {
 	if (BLocaleRoster::Default()->GetLocalizedFileName(
-			fEntryRef, fLocalizedName, true) == B_OK)
+			fLocalizedName, fEntryRef, true) == B_OK)
 		fHasLocalizedName = true;
 	else
 		fHasLocalizedName = false;

src/kits/tracker/Model.h

@@ -204,6 +204,9 @@ class Model {
 
 		bool Mimeset(bool force);
 			// returns true if mime type changed
+
+		bool HasLocalizedName() const;
+
 	private:
 		status_t OpenNodeCommon(bool writable);
 		void SetupBaseType();
@@ -451,6 +454,13 @@ Model::IsSymLink() const
 }
 
 
+inline bool
+Model::HasLocalizedName() const
+{
+	return fHasLocalizedName;
+}
+
+
 inline
 ModelNodeLazyOpener::ModelNodeLazyOpener(Model *model, bool writable, bool openLater)
 	:	fModel(model),