refactor(chat): remove typing indicator

src/components/chat/AgentWorkspace.test.tsx

@@ -34,10 +34,6 @@ jest.mock("framer-motion", () => ({
   },
 }));
 
-jest.mock("./GlobalChatbox.parts", () => ({
-  TypingIndicator: () => <div>typing</div>,
-}));
-
 jest.mock("./AgentTurn", () => ({
   AgentTurn: ({ message, isStreaming }: { message: Message; isStreaming: boolean }) => {
     React.useEffect(() => {

src/components/chat/AgentWorkspace.tsx

@@ -10,7 +10,6 @@ import TroubleshootRounded from "@mui/icons-material/TroubleshootRounded";
 import MapRounded from "@mui/icons-material/MapRounded";
 
 import { AgentTurn } from "./AgentTurn";
-import { TypingIndicator } from "./GlobalChatbox.parts";
 import type { PermissionReply } from "@/lib/chatStream";
 import type {
   Message,
@@ -39,7 +38,7 @@ type AgentWorkspaceProps = {
 
 type TurnListProps = {
   messages: Message[];
-  isStreaming: boolean;
+  isAssistantStreaming: boolean;
   streamingMessageId: string | null;
   speakingMessageId: string | null;
   speechState: SpeechState;
@@ -65,7 +64,7 @@ const TurnItem = React.memo(AgentTurn);
 
 const TurnListInner = ({
   messages,
-  isStreaming,
+  isAssistantStreaming,
   streamingMessageId,
   speakingMessageId,
   speechState,
@@ -85,7 +84,7 @@ const TurnListInner = ({
         <TurnItem
           key={message.id}
           message={message}
-          isStreaming={isStreaming && message.id === streamingMessageId}
+          isStreaming={isAssistantStreaming && message.id === streamingMessageId}
           messageSpeechState={speakingMessageId === message.id ? speechState : "idle"}
           onSpeak={onSpeak}
           onPause={onPauseSpeech}
@@ -106,7 +105,7 @@ const TurnList = React.memo(
   TurnListInner,
   (prevProps, nextProps) =>
     sameMessages(prevProps.messages, nextProps.messages) &&
-    prevProps.isStreaming === nextProps.isStreaming &&
+    prevProps.isAssistantStreaming === nextProps.isAssistantStreaming &&
     prevProps.streamingMessageId === nextProps.streamingMessageId &&
     prevProps.speakingMessageId === nextProps.speakingMessageId &&
     prevProps.speechState === nextProps.speechState &&
@@ -318,19 +317,10 @@ export const AgentWorkspace = ({
   onReplyQuestion,
   onRejectQuestion,
 }: AgentWorkspaceProps) => {
-  const theme = useTheme();
-  const latestAssistant = [...messages]
-    .reverse()
-    .find((message) => message.role === "assistant");
-  const showTypingIndicator =
-    isStreaming &&
-    (!latestAssistant ||
-      (latestAssistant.content.trim().length === 0 &&
-        !(latestAssistant.artifacts?.length)));
-  const streamingMessage =
+  const streamingMessageId =
     isStreaming && messages.at(-1)?.role === "assistant"
-      ? messages.at(-1)
-      : undefined;
+      ? messages.at(-1)?.id ?? null
+      : null;
   const handleScroll = React.useCallback(
     (event: React.UIEvent<HTMLDivElement>) => {
       if (!onScrollStateChange) return;
@@ -372,8 +362,8 @@ export const AgentWorkspace = ({
             <Box sx={{ display: "flex", flexDirection: "column", gap: 2 }}>
               <TurnList
                 messages={messages}
-                isStreaming={isStreaming}
-                streamingMessageId={streamingMessage?.id ?? null}
+                isAssistantStreaming={isStreaming}
+                streamingMessageId={streamingMessageId}
                 speakingMessageId={speakingMessageId}
                 speechState={speechState}
                 onSpeak={onSpeak}
@@ -391,27 +381,6 @@ export const AgentWorkspace = ({
         </>
       )}
 
-      {!isLoadingSession && showTypingIndicator ? (
-        <motion.div
-          initial={{ opacity: 0, y: 10, scale: 0.94 }}
-          animate={{ opacity: 1, y: 0, scale: 1 }}
-          transition={{ type: "spring", stiffness: 300 }}
-          style={{ alignSelf: "flex-start", display: "flex", gap: 12, marginTop: 4, marginLeft: 44 }}
-        >
-          <Paper
-            elevation={0}
-            sx={{
-              p: 1.3,
-              borderRadius: 4,
-              bgcolor: alpha("#fff", 0.82),
-              boxShadow: `0 4px 12px ${alpha(theme.palette.common.black, 0.05)}`,
-            }}
-          >
-            <TypingIndicator />
-          </Paper>
-        </motion.div>
-      ) : null}
-
       <div
         ref={bottomRef}
         style={{

src/components/chat/GlobalChatbox.parts.tsx

@@ -2,36 +2,6 @@
 
 import React from "react";
 import { motion } from "framer-motion";
-import { Box, Stack } from "@mui/material";
-
-export const TypingIndicator = () => {
-  return (
-    <Stack direction="row" spacing={0.5} alignItems="center" sx={{ p: 1 }}>
-      {[0, 1, 2].map((i) => (
-        <motion.div
-          key={i}
-          initial={{ y: 0 }}
-          animate={{ y: [-4, 4, -4] }}
-          transition={{
-            duration: 0.6,
-            repeat: Infinity,
-            delay: i * 0.15,
-            ease: "easeInOut",
-          }}
-        >
-          <Box
-            sx={{
-              width: 8,
-              height: 8,
-              borderRadius: "50%",
-              background: "linear-gradient(135deg, #FF6B6B 0%, #FF8E53 100%)",
-            }}
-          />
-        </motion.div>
-      ))}
-    </Stack>
-  );
-};
 
 export const Blob = ({
   color,