feat: add Listen to the report

web/src/app/_components/research-report-block.tsx

@@ -1,6 +1,15 @@
 // Copyright (c) 2025 Bytedance Ltd. and/or its affiliates
 // SPDX-License-Identifier: MIT
 
+import { PauseCircleOutlined, SoundOutlined } from "@ant-design/icons";
+import { useCallback, useRef, useState } from "react";
+
+import { Button } from "~/components/ui/button";
+import {
+  Tooltip,
+  TooltipTrigger,
+  TooltipContent,
+} from "~/components/ui/tooltip";
 import { useMessage } from "~/core/store";
 import { cn } from "~/lib/utils";
 
@@ -15,8 +24,48 @@ export function ResearchReportBlock({
   messageId: string;
 }) {
   const message = useMessage(messageId);
+  const contentRef = useRef<HTMLDivElement>(null);
+  const [isTTS, setIsTTS] = useState(false);
+  const handleTTS = useCallback(() => {
+    if (contentRef.current) {
+      if (isTTS) {
+        window.speechSynthesis.cancel();
+        setIsTTS(false);
+      } else {
+        const text = contentRef.current.textContent;
+        if (text) {
+          const utterance = new SpeechSynthesisUtterance(text);
+          setIsTTS(true);
+          window.speechSynthesis.speak(utterance);
+        }
+      }
+    }
+  }, [isTTS]);
   return (
-    <div className={cn("flex flex-col pb-8", className)}>
+    <div
+      ref={contentRef}
+      className={cn("relative flex flex-col pb-8", className)}
+    >
+      <div className="absolute top-2 right-6">
+        {message?.content && !message.isStreaming && (
+          <Tooltip>
+            <TooltipTrigger asChild>
+              <Button
+                variant="outline"
+                size="icon"
+                onClick={() => {
+                  handleTTS();
+                }}
+              >
+                {isTTS ? <PauseCircleOutlined /> : <SoundOutlined />}
+              </Button>
+            </TooltipTrigger>
+            <TooltipContent>
+              <p>{isTTS ? "Pause" : "Listen to the report"}</p>
+            </TooltipContent>
+          </Tooltip>
+        )}
+      </div>
       <Markdown animate>{message?.content}</Markdown>
       {message?.isStreaming && <LoadingAnimation className="my-12" />}
     </div>