添加语音识别和朗读功能

src/components/chat/GlobalChatbox.tsx

@@ -32,11 +32,40 @@ import StopRounded from "@mui/icons-material/StopRounded";
 import AutoAwesome from "@mui/icons-material/AutoAwesome"; // Sparkle icon for AI
 import ErrorOutlineRounded from "@mui/icons-material/ErrorOutlineRounded";
 import AddCommentRounded from "@mui/icons-material/AddCommentRounded";
+import VolumeUpRounded from "@mui/icons-material/VolumeUpRounded";
+import PauseRounded from "@mui/icons-material/PauseRounded";
+import PlayArrowRounded from "@mui/icons-material/PlayArrowRounded";
+import MicRounded from "@mui/icons-material/MicRounded";
 
 // Logic
 import { streamCopilotChat } from "@/lib/chatStream";
 import { parseAssistantMessageSections } from "./chatMessageSections";
 
+// WebKit Speech Recognition compatibility
+interface SpeechRecognitionEvent extends Event {
+  readonly resultIndex: number;
+  readonly results: SpeechRecognitionResultList;
+}
+
+interface SpeechRecognition extends EventTarget {
+  lang: string;
+  continuous: boolean;
+  interimResults: boolean;
+  onresult: ((event: SpeechRecognitionEvent) => void) | null;
+  onerror: ((event: Event) => void) | null;
+  onend: (() => void) | null;
+  start(): void;
+  stop(): void;
+  abort(): void;
+}
+
+declare global {
+  interface Window {
+    SpeechRecognition?: { new (): SpeechRecognition; prototype: SpeechRecognition };
+    webkitSpeechRecognition?: { new (): SpeechRecognition; prototype: SpeechRecognition };
+  }
+}
+
 // Types
 type Message = {
   id: string;
@@ -59,6 +88,26 @@ const normalizeThoughtTagToken = (token: string): string =>
     closingSlash ? "</think>" : "<think>",
   );
 
+type SpeechState = "idle" | "playing" | "paused";
+
+const stripMarkdown = (md: string): string =>
+  md
+    .replace(/```[\s\S]*?```/g, "")
+    .replace(/`([^`]+)`/g, "$1")
+    .replace(/!\[.*?\]\(.*?\)/g, "")
+    .replace(/\[([^\]]+)\]\(.*?\)/g, "$1")
+    .replace(/#{1,6}\s+/g, "")
+    .replace(/\*\*\*(.+?)\*\*\*/g, "$1")
+    .replace(/\*\*(.+?)\*\*/g, "$1")
+    .replace(/\*(.+?)\*/g, "$1")
+    .replace(/~~(.+?)~~/g, "$1")
+    .replace(/>\s+/g, "")
+    .replace(/[-*+]\s+/g, "")
+    .replace(/\d+\.\s+/g, "")
+    .replace(/\n{2,}/g, "\n")
+    .replace(/<[^>]+>/g, "")
+    .trim();
+
 type PersistedChatState = {
   messages: Message[];
   conversationId?: string;
@@ -150,10 +199,16 @@ const Blob = ({ color, size, top, left, delay }: { color: string; size: number;
 type ChatMessageItemProps = {
   message: Message;
   theme: Theme;
+  messageSpeechState: SpeechState;
+  onSpeak: (messageId: string, text: string) => void;
+  onPause: () => void;
+  onResume: () => void;
+  onStopSpeech: () => void;
+  isTtsSupported: boolean;
 };
 
 const ChatMessageItem = React.memo(
-  ({ message, theme }: ChatMessageItemProps) => {
+  ({ message, theme, messageSpeechState, onSpeak, onPause, onResume, onStopSpeech, isTtsSupported }: ChatMessageItemProps) => {
     const isUser = message.role === "user";
     const isErrorMessage = Boolean(message.isError);
     const parsedAssistantSections =
@@ -187,6 +242,7 @@ const ChatMessageItem = React.memo(
           </Avatar>
         )}
 
+        <Box>
         <Paper
           elevation={isUser ? 8 : isErrorMessage ? 1 : 2}
           sx={{
@@ -278,12 +334,194 @@ const ChatMessageItem = React.memo(
             <ReactMarkdown remarkPlugins={[remarkGfm]}>{answerContent || "..."}</ReactMarkdown>
           </div>
         </Paper>
+        {!isUser && !isErrorMessage && isTtsSupported && (
+          <Stack direction="row" spacing={0.5} sx={{ mt: 0.5, ml: 0.5 }}>
+            {messageSpeechState === "idle" && (
+              <IconButton
+                size="small"
+                onClick={() => onSpeak(message.id, stripMarkdown(answerContent))}
+                aria-label="朗读消息"
+                sx={{ color: "text.secondary", opacity: 0.6, "&:hover": { opacity: 1 }, p: 0.5 }}
+              >
+                <VolumeUpRounded sx={{ fontSize: 16 }} />
+              </IconButton>
+            )}
+            {messageSpeechState === "playing" && (
+              <>
+                <IconButton
+                  size="small"
+                  onClick={onPause}
+                  aria-label="暂停朗读"
+                  sx={{ color: "primary.main", p: 0.5 }}
+                >
+                  <PauseRounded sx={{ fontSize: 16 }} />
+                </IconButton>
+                <IconButton
+                  size="small"
+                  onClick={onStopSpeech}
+                  aria-label="停止朗读"
+                  sx={{ color: "error.main", p: 0.5 }}
+                >
+                  <StopRounded sx={{ fontSize: 16 }} />
+                </IconButton>
+              </>
+            )}
+            {messageSpeechState === "paused" && (
+              <>
+                <IconButton
+                  size="small"
+                  onClick={onResume}
+                  aria-label="继续朗读"
+                  sx={{ color: "primary.main", p: 0.5 }}
+                >
+                  <PlayArrowRounded sx={{ fontSize: 16 }} />
+                </IconButton>
+                <IconButton
+                  size="small"
+                  onClick={onStopSpeech}
+                  aria-label="停止朗读"
+                  sx={{ color: "error.main", p: 0.5 }}
+                >
+                  <StopRounded sx={{ fontSize: 16 }} />
+                </IconButton>
+              </>
+            )}
+          </Stack>
+        )}
+        </Box>
       </motion.div>
     );
   },
 );
 ChatMessageItem.displayName = "ChatMessageItem";
 
+// --- Voice Hooks ---
+
+function useSpeechSynthesis() {
+  const [speechState, setSpeechState] = useState<SpeechState>("idle");
+  const [speakingMessageId, setSpeakingMessageId] = useState<string | null>(null);
+  const utteranceRef = useRef<SpeechSynthesisUtterance | null>(null);
+
+  const isSupported = typeof window !== "undefined" && "speechSynthesis" in window;
+
+  const stop = useCallback(() => {
+    if (!isSupported) return;
+    window.speechSynthesis.cancel();
+    utteranceRef.current = null;
+    setSpeechState("idle");
+    setSpeakingMessageId(null);
+  }, [isSupported]);
+
+  const speak = useCallback(
+    (messageId: string, text: string) => {
+      if (!isSupported || !text) return;
+      window.speechSynthesis.cancel();
+
+      const utterance = new SpeechSynthesisUtterance(text);
+      utterance.lang = "zh-CN";
+      utterance.rate = 1;
+      utterance.onend = () => {
+        setSpeechState("idle");
+        setSpeakingMessageId(null);
+        utteranceRef.current = null;
+      };
+      utterance.onerror = () => {
+        setSpeechState("idle");
+        setSpeakingMessageId(null);
+        utteranceRef.current = null;
+      };
+      utterance.onpause = () => setSpeechState("paused");
+      utterance.onresume = () => setSpeechState("playing");
+
+      utteranceRef.current = utterance;
+      setSpeakingMessageId(messageId);
+      setSpeechState("playing");
+      window.speechSynthesis.speak(utterance);
+    },
+    [isSupported],
+  );
+
+  const pause = useCallback(() => {
+    if (!isSupported) return;
+    window.speechSynthesis.pause();
+  }, [isSupported]);
+
+  const resume = useCallback(() => {
+    if (!isSupported) return;
+    window.speechSynthesis.resume();
+  }, [isSupported]);
+
+  useEffect(() => {
+    return () => {
+      if (typeof window !== "undefined" && "speechSynthesis" in window) {
+        window.speechSynthesis.cancel();
+      }
+    };
+  }, []);
+
+  return { speechState, speakingMessageId, speak, pause, resume, stop, isSupported };
+}
+
+function useSpeechRecognition(onResult: (text: string) => void) {
+  const [isListening, setIsListening] = useState(false);
+  const recognitionRef = useRef<SpeechRecognition | null>(null);
+  const onResultRef = useRef(onResult);
+  useEffect(() => {
+    onResultRef.current = onResult;
+  }, [onResult]);
+
+  const isSupported =
+    typeof window !== "undefined" &&
+    ("SpeechRecognition" in window || "webkitSpeechRecognition" in window);
+
+  const start = useCallback(() => {
+    if (!isSupported || recognitionRef.current) return;
+    const Ctor = window.SpeechRecognition ?? window.webkitSpeechRecognition;
+    if (!Ctor) return;
+
+    const recognition = new Ctor();
+    recognition.lang = "zh-CN";
+    recognition.continuous = true;
+    recognition.interimResults = false;
+
+    recognition.onresult = (event: SpeechRecognitionEvent) => {
+      for (let i = event.resultIndex; i < event.results.length; i++) {
+        if (event.results[i].isFinal) {
+          onResultRef.current(event.results[i][0].transcript);
+        }
+      }
+    };
+
+    recognition.onerror = () => {
+      setIsListening(false);
+      recognitionRef.current = null;
+    };
+
+    recognition.onend = () => {
+      setIsListening(false);
+      recognitionRef.current = null;
+    };
+
+    recognitionRef.current = recognition;
+    recognition.start();
+    setIsListening(true);
+  }, [isSupported]);
+
+  const stop = useCallback(() => {
+    recognitionRef.current?.stop();
+    recognitionRef.current = null;
+    setIsListening(false);
+  }, []);
+
+  useEffect(() => {
+    return () => {
+      recognitionRef.current?.stop();
+    };
+  }, []);
+
+  return { isListening, start, stop, isSupported };
+}
+
 export const GlobalChatbox: React.FC<Props> = ({ open, onClose }) => {
   const initialChatStateRef = useRef<PersistedChatState | null>(null);
   if (initialChatStateRef.current === null) {
@@ -304,6 +542,28 @@ export const GlobalChatbox: React.FC<Props> = ({ open, onClose }) => {
   const inputRef = useRef<HTMLInputElement | null>(null);
   const theme = useTheme();
 
+  // --- Voice Features ---
+  const {
+    speechState,
+    speakingMessageId,
+    speak: handleSpeak,
+    pause: handlePauseSpeech,
+    resume: handleResumeSpeech,
+    stop: handleStopSpeech,
+    isSupported: isTtsSupported,
+  } = useSpeechSynthesis();
+
+  const handleSpeechResult = useCallback((text: string) => {
+    setInput((prev) => prev + text);
+  }, []);
+
+  const {
+    isListening,
+    start: startListening,
+    stop: stopListening,
+    isSupported: isSttSupported,
+  } = useSpeechRecognition(handleSpeechResult);
+
   const canSend = useMemo(() => input.trim().length > 0 && !isStreaming, [input, isStreaming]);
   const isHeaderMenuOpen = Boolean(headerMenuAnchorEl);
 
@@ -333,6 +593,7 @@ export const GlobalChatbox: React.FC<Props> = ({ open, onClose }) => {
   const handleSend = async () => {
     const prompt = input.trim();
     if (!prompt || isStreaming) return;
+    stopListening();
 
     const userId = createId();
     const assistantId = createId();
@@ -422,6 +683,8 @@ export const GlobalChatbox: React.FC<Props> = ({ open, onClose }) => {
 
   const handleNewConversation = useCallback(() => {
     abortRef.current?.abort();
+    handleStopSpeech();
+    stopListening();
     setMessages([]);
     setConversationId(undefined);
     setInput("");
@@ -431,7 +694,7 @@ export const GlobalChatbox: React.FC<Props> = ({ open, onClose }) => {
     window.setTimeout(() => {
       inputRef.current?.focus();
     }, 0);
-  }, [handleHeaderMenuClose]);
+  }, [handleHeaderMenuClose, handleStopSpeech, stopListening]);
 
   const handleMouseDown = useCallback((e: React.MouseEvent) => {
     e.preventDefault();
@@ -469,9 +732,15 @@ export const GlobalChatbox: React.FC<Props> = ({ open, onClose }) => {
           key={message.id}
           message={message}
           theme={theme}
+          messageSpeechState={speakingMessageId === message.id ? speechState : "idle"}
+          onSpeak={handleSpeak}
+          onPause={handlePauseSpeech}
+          onResume={handleResumeSpeech}
+          onStopSpeech={handleStopSpeech}
+          isTtsSupported={isTtsSupported}
         />
       )),
-    [messages, theme],
+    [messages, theme, speechState, speakingMessageId, handleSpeak, handlePauseSpeech, handleResumeSpeech, handleStopSpeech, isTtsSupported],
   );
 
 
@@ -756,6 +1025,45 @@ export const GlobalChatbox: React.FC<Props> = ({ open, onClose }) => {
                 }}
                 />
                 
+                {isSttSupported && (
+                  <Box sx={{ display: "flex", alignItems: "center", mr: 1 }}>
+                    {isListening ? (
+                      <motion.div
+                        animate={{ scale: [1, 1.15, 1] }}
+                        transition={{ duration: 1.5, repeat: Infinity, ease: "easeInOut" }}
+                      >
+                        <IconButton
+                          onClick={stopListening}
+                          aria-label="停止语音输入"
+                          sx={{
+                            color: "error.main",
+                            bgcolor: alpha(theme.palette.error.main, 0.1),
+                            width: 44,
+                            height: 44,
+                            "&:hover": { bgcolor: alpha(theme.palette.error.main, 0.2) },
+                          }}
+                        >
+                          <MicRounded />
+                        </IconButton>
+                      </motion.div>
+                    ) : (
+                      <IconButton
+                        onClick={startListening}
+                        disabled={isStreaming}
+                        aria-label="语音输入"
+                        sx={{
+                          color: "text.secondary",
+                          width: 44,
+                          height: 44,
+                          "&:hover": { color: "primary.main" },
+                        }}
+                      >
+                        <MicRounded />
+                      </IconButton>
+                    )}
+                  </Box>
+                )}
+
                 <Box sx={{ pr: 0.5 }}>
                     <AnimatePresence mode="wait">
                         {isStreaming ? (