fix(lyric): 修复桌面歌词窗口首次打开无歌词问题

歌词窗口 Vue 加载完成后发送 lyric-ready 信号，主窗口收到后
发送完整歌词数据，替代不可靠的延迟猜测方案

src/renderer/hooks/MusicHook.ts

@@ -821,9 +821,11 @@ export const openLyric = () => {
       sendLyricToWin();
     }
 
-    // 设置定时器，确保500ms后再次发送数据，以防窗口加载延迟
+    // 延迟重发一次，以防窗口加载略慢
     setTimeout(() => {
-      sendLyricToWin();
+      if (isLyricWindowOpen.value) {
+        sendLyricToWin();
+      }
     }, 500);
 
     // 启动歌词同步
@@ -936,11 +938,17 @@ export const initAudioListeners = async () => {
     // 初始化音频监听器
     setupAudioListeners();
 
-    // 监听歌词窗口关闭事件
+    // 监听歌词窗口事件
     if (isElectron) {
       window.api.onLyricWindowClosed(() => {
         isLyricWindowOpen.value = false;
       });
+      // 歌词窗口 Vue 加载完成后，发送完整歌词数据
+      window.api.onLyricWindowReady(() => {
+        if (isLyricWindowOpen.value) {
+          sendLyricToWin();
+        }
+      });
     }
 
     // 获取最新的音频实例

src/renderer/types/electron.d.ts

@@ -12,6 +12,8 @@ export interface IElectronAPI {
   unblockMusic: (_id: number) => Promise<string>;
   importCustomApiPlugin: () => Promise<{ name: string; content: string } | null>;
   importLxMusicScript: () => Promise<{ name: string; content: string } | null>;
+  onLyricWindowClosed: (_callback: () => void) => void;
+  onLyricWindowReady: (_callback: () => void) => void;
   onLanguageChanged: (_callback: (_locale: string) => void) => void;
   store: {
     get: (_key: string) => Promise<any>;

src/renderer/views/lyric/index.vue

@@ -642,6 +642,9 @@ onMounted(() => {
       console.error('Error parsing lyric data:', error);
     }
   });
+
+  // 通知主窗口歌词窗口已就绪，请求发送完整歌词数据
+  windowData.electron.ipcRenderer.send('lyric-ready');
 });
 
 onUnmounted(() => {