Interface cleanups to prepare the return of "grouped sorting"

- Rename setCategorizedSorting() to setGroupedSorting()
- Change the model interface to allow enabling/disabling grouping
  without the need to declare a role (the sort role will be taken).
- Add dummy group role implementation in KFileItemModel

The grouping code itself requires some cleanups and might crash
at the moment or lead to weird layouts.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/views/dolphinviewactionhandler.h b/src/views/dolphinviewactionhandler.h
index 4e5a0d32f..647c6390c 100644
--- a/src/views/dolphinviewactionhandler.h
+++ b/src/views/dolphinviewactionhandler.h
@@ -176,14 +176,14 @@ private Q_SLOTS:
                                        const QList<DolphinView::AdditionalInfo>& previous);
 
     /**
-     * Switches between sorting by categories or not.
+     * Switches between sorting by groups or not.
      */
-    void toggleSortCategorization(bool);
+    void toggleGroupedSorting(bool);
 
     /**
      * Updates the state of the 'Categorized sorting' menu action.
      */
-    void slotCategorizedSortingChanged(bool sortCategorized);
+    void slotGroupedSortingChanged(bool sortCategorized);
 
     /**
      * Switches between showing and hiding of hidden marked files