WIP V3: preview button works

app/playlistmodel.py

@@ -448,6 +448,13 @@ class PlaylistModel(QAbstractTableModel):
 
         return QVariant(boldfont)
 
+    def get_row_track_path(self, row_number: int) -> str:
+        """
+        Return path of track associated with row or empty string if no track associated
+        """
+
+        return self.playlist_rows[row_number].path
+
     def get_rows_duration(self, row_numbers: List[int]) -> int:
         """
         Return the total duration of the passed rows

app/playlists.py

@@ -284,6 +284,20 @@ class PlaylistTab(QTableView):
                 return index.row()
         return None
 
+    def get_selected_row_track_path(self) -> str:
+        """
+        Return the path of the selected row. If no row selected or selected
+        row does not have a track, return empty string.
+        """
+
+        sm = self.selectionModel()
+        if sm and sm.hasSelection():
+            index = sm.currentIndex()
+            if index.isValid():
+                model = cast(PlaylistModel, self.model())
+                return model.get_row_track_path(index.row())
+        return ""
+
     # def lookup_row_in_songfacts(self) -> None:
     #     """
     #     If there is a selected row and it is a track row,