Partly reorganize stuff

This is just a commit so I can start integrating the config system over
the next few commits without polluting config system changes with
RoomWidget changes.

The RoomWidget is going to be properly cleaned up once the config system
is actually in place.

cheuph/euphoria/room_widget.py

@@ -173,6 +173,7 @@ class RoomWidget(urwid.WidgetWrap):
 
         self._mode: str
         self._requesting_logs = False
+        self._hit_top_of_supply = False
 
         self._room = yaboli.Room(roomname)
         self._room.register_event("snapshot", self.on_snapshot)
@@ -211,6 +212,14 @@ class RoomWidget(urwid.WidgetWrap):
         super().__init__(self._connecting)
         self.switch_connecting()
 
+    # Creating the various parts of the layout.
+    #
+    # This is put into separate methods because the individual elements have a
+    # lot of parameters which are (to be) read from some sort of config system.
+    # Putting all of these into __init__() would be a mess.
+    #
+    # These functions use (or rather: will use) self._conf.
+
     def _create_euph_renderer(self) -> EuphRenderer:
         return EuphRenderer("")
 
@@ -255,7 +264,7 @@ class RoomWidget(urwid.WidgetWrap):
     def _create_edit_nick_widget(self) -> Any:
         return EditWidget("Choose a nick: ", "@")
 
-    # Start up the connection and room
+    ## Room life cycle
 
     @synchronous
     async def connect(self) -> None:
@@ -268,11 +277,11 @@ class RoomWidget(urwid.WidgetWrap):
 
     @synchronous
     async def disconnect(self) -> None:
-        self._room.disconnect()
+        await self._room.disconnect()
+        # TODO attach this to the room's disconnect event instead
+        urwid.emit_signal(self, "close")
 
-    # NEW, BETTER ORGANIZED ROOM WIDGET
-
-    # UI mode and mode switching
+    ## UI mode and mode switching
 
     CONNECTING = "connecting"
     CONNECTION_FAILED = "connection_failed"
@@ -360,7 +369,7 @@ class RoomWidget(urwid.WidgetWrap):
         self._tree.invalidate(msg.message_id)
         self.update_tree()
 
-    # Reacting to urwid stuff
+    ## Reacting to urwid stuff
 
     def render(self, size: Tuple[int, int], focus: bool) -> None:
         canvas = super().render(size, focus)
@@ -385,6 +394,8 @@ class RoomWidget(urwid.WidgetWrap):
             elif key == "r":
                 self._tree.invalidate_all()
                 self._tree_widget._invalidate()
+            elif key == "q":
+                self.disconnect()
             else:
                 return super().keypress(size, key)
 
@@ -419,6 +430,17 @@ class RoomWidget(urwid.WidgetWrap):
 
     ## Euph stuff
 
+    # Reacting to euph events
+
+    async def on_snapshot(self, messages: List[yaboli.Message]):
+        for message in messages:
+            self.receive_message(message)
+        self.update_tree()
+
+    async def on_send(self, message: yaboli.Message):
+        self.receive_message(message)
+        self.update_tree()
+
     # Euph actions
 
     @synchronous
@@ -443,15 +465,4 @@ class RoomWidget(urwid.WidgetWrap):
         self.receive_message(message)
         self.update_tree()
 
-    # Reacting to euph events
-
-    async def on_snapshot(self, messages: List[yaboli.Message]):
-        for message in messages:
-            self.receive_message(message)
-        self.update_tree()
-
-    async def on_send(self, message: yaboli.Message):
-        self.receive_message(message)
-        self.update_tree()
-
 urwid.register_signal(RoomWidget, ["close"])