Clean up a bit

cheuph/cursor_rendering.py

@@ -77,6 +77,16 @@ class CursorTreeRenderer(Generic[E]):
         # Configurable variables
         if indent_width < 0:
             raise ValueError("indent width must be 0 or greater")
+        if len(indent) != 1:
+            raise ValueError() # TODO add description to exception
+        if len(indent_fill) != 1:
+            raise ValueError() # TODO add description to exception
+        if len(cursor_indent) != 1:
+            raise ValueError() # TODO add description to exception
+        if len(cursor_corner) != 1:
+            raise ValueError() # TODO add description to exception
+        if len(cursor_fill) != 1:
+            raise ValueError() # TODO add description to exception
         if scrolloff < 0:
             raise ValueError("scrolloff must be 0 or greater")
         self._indent_width = indent_width
@@ -89,6 +99,8 @@ class CursorTreeRenderer(Generic[E]):
         self._cursor_indent_attrs = cursor_indent_attrs
         self._scrolloff = scrolloff
 
+    # Some properties
+
     @property
     def lines(self) -> AttributedLines:
         # Not sure if the between() is necessary
@@ -98,6 +110,10 @@ class CursorTreeRenderer(Generic[E]):
     def hit_top(self) -> bool:
         return self._hit_top
 
+    @property
+    def cursor_id(self) -> Optional[Id]:
+        return self._cursor_id
+
     # Offsets
 
     @staticmethod

cheuph/message_editor_widget.py

@@ -1,13 +0,0 @@
-__all__ = ["MessageEditorWidget"]
-
-
-class MessageEditorWidget:
-    """
-    This widget allows the user to compose a new message. It is based on
-    urwid's Edit widget.
-
-    One day, it will (hopefully) support syntax highlighting and tab
-    completion.
-    """
-
-    pass

cheuph/user_list_widget.py

@@ -1,12 +0,0 @@
-__all__ = ["UserListWidget"]
-
-
-class UserListWidget:
-    """
-    This widget displays the users currently connected to a Room.
-
-    It must be notified of changes in the user list by the RoomWidget it is a
-    part of.
-    """
-
-    pass