Upgrade to latest Textual, make faster

elia_chat/elia.scss

@@ -264,7 +264,16 @@ Chatbox {
 }
 
 Footer {
-  background: $main-darken-1 0%;
+  background: transparent;
+
+  & FooterKey {
+    background: transparent;
+  }
+
+  .footer-key--key {
+    color: greenyellow;
+    background: transparent;
+  }
 }
 
 Footer > .footer--highlight {

elia_chat/widgets/chat.py

@@ -195,13 +195,16 @@ async def stream_agent_response(self) -> None:
             "role": "assistant",
         }
         now = datetime.datetime.now(datetime.timezone.utc)
-        message = ChatMessage(message=ai_message, model=model, timestamp=now)
 
+        message = ChatMessage(message=ai_message, model=model, timestamp=now)
         response_chatbox = Chatbox(
             message=message,
             model=self.chat_data.model,
             classes="response-in-progress",
         )
+        self.post_message(self.AgentResponseStarted())
+        self.app.call_from_thread(self.chat_container.mount, response_chatbox)
+
         assert (
             self.chat_container is not None
         ), "Textual has mounted container at this point in the lifecycle."
@@ -212,20 +215,20 @@ async def stream_agent_response(self) -> None:
                 chunk = cast(ModelResponse, chunk)
                 response_chatbox.border_title = "Agent is responding..."
 
-                if chunk_count == 0:
-                    self.post_message(self.AgentResponseStarted())
-                    await self.chat_container.mount(response_chatbox)
-
                 chunk_content = chunk.choices[0].delta.content
                 if isinstance(chunk_content, str):
-                    response_chatbox.append_chunk(chunk_content)
+                    self.app.call_from_thread(
+                        response_chatbox.append_chunk, chunk_content
+                    )
                 else:
                     break
 
                 scroll_y = self.chat_container.scroll_y
                 max_scroll_y = self.chat_container.max_scroll_y
                 if scroll_y in range(max_scroll_y - 3, max_scroll_y + 1):
-                    self.chat_container.scroll_end(animate=False)
+                    self.app.call_from_thread(
+                        self.chat_container.scroll_end, animate=False
+                    )
 
                 chunk_count += 1
         except Exception:

pyproject.toml

@@ -6,7 +6,7 @@ authors = [
     { name = "Darren Burns", email = "[email protected]" }
 ]
 dependencies = [
-    "textual[syntax]==0.62",
+    "textual[syntax]==0.79.1",
     "sqlmodel>=0.0.9",
     "humanize>=4.6.0",
     "click>=8.1.6",