Only send a formatted_body if it's truly needed

TODO.md

@@ -11,17 +11,19 @@
   - Room Sidepane
   - When qml syntax highlighting supports string interpolation, use them
 
-- Bug fixes
+- Fixes
   - Past events loading (limit 100) freezes the GUI - need to move upsert func
     to a WorkerScript
   - `MessageDelegate.qml:63: TypeError: 'reloadPreviousItem' not a function`
   - Horrible performance for big rooms
 
 - UI
+  - Show error box if uploading avatar fails
   - EditAccount page:
     - Device settings
     - Multiaccount aliases:
       - Warn when overwriting another alias
+      - Forbid spaces?
       - Add an explanation tooltip
   - Improve avatar tooltips position, add stuff to room tooltips (last msg?)
   - Accept drag and dropping a picture in account settings to set avatar
@@ -77,7 +79,6 @@
 
 - Client improvements
   - Set Qt.application.* stuff from C++
-  - Don't send a formatted_text if it's just `<p>plaintext</p>`
   - [debug mode](https://docs.python.org/3/library/asyncio-dev.html)
   - Initial sync filter and lazy load, see weechat-matrix `_handle_login()`
     - See also `handle_response()`'s `keys_query` request

src/python/matrix_client.py

@@ -155,12 +155,12 @@ class MatrixClient(nio.AsyncClient):
 
 
     async def send_markdown(self, room_id: str, text: str) -> None:
-        content = {
-            "body":           text,
-            "formatted_body": HTML_FILTER.from_markdown(text),
-            "format":         "org.matrix.custom.html",
-            "msgtype":        "m.text",
-        }
+        content = {"body": text, "msgtype": "m.text"}
+        to_html = HTML_FILTER.from_markdown(text)
+
+        if to_html not in (text, f"<p>{text}</p>"):
+            content["format"]         = "org.matrix.custom.html"
+            content["formatted_body"] = to_html
 
         TimelineMessageReceived(
             event_type    = nio.RoomMessageText,
@@ -168,7 +168,7 @@ class MatrixClient(nio.AsyncClient):
             event_id      = f"local_echo.{uuid4()}",
             sender_id     = self.user_id,
             date          = datetime.now(),
-            content       = content["formatted_body"],
+            content       = to_html,
             is_local_echo = True,
         )