feat: add Japanese Furigana support to lyrics display (#2161)

src/renderer/features/lyrics/components/lyrics-settings-form.tsx

@@ -291,6 +291,22 @@ export const LyricsSettingsForm = ({ settingsKey }: LyricsSettingsFormProps) =>
             isHidden: !isElectron(),
             title: t('setting.lyricFetchProvider'),
         },
+        {
+            control: (
+                <Switch
+                    aria-label="Enable furigana"
+                    defaultChecked={lyricsSettings.enableFurigana}
+                    onChange={(e) =>
+                        updateLyricsSetting({ enableFurigana: e.currentTarget.checked })
+                    }
+                />
+            ),
+            description: t('setting.enableFurigana', {
+                context: 'description',
+            }),
+            isHidden: !isElectron(),
+            title: t('setting.enableFurigana'),
+        },
         {
             control: (
                 <Switch

src/renderer/features/lyrics/hooks/use-furigana-lyrics.ts

@@ -0,0 +1,30 @@
+import { useQuery } from '@tanstack/react-query';
+import isElectron from 'is-electron';
+
+import { LyricsResponse, SynchronizedLyricsArray } from '/@/shared/types/domain-types';
+
+const lyricsApi = isElectron() ? window.api.lyrics : null;
+
+export const useFuriganaLyrics = (lyrics: LyricsResponse | null | undefined, enabled: boolean) => {
+    return useQuery({
+        enabled: enabled && !!lyrics && !!lyricsApi,
+        queryFn: async () => {
+            if (!lyrics || !lyricsApi || !enabled) return lyrics;
+
+            if (typeof lyrics === 'string') {
+                return await lyricsApi.convertFurigana(lyrics);
+            } else if (Array.isArray(lyrics)) {
+                const text = lyrics.map(([, line]) => line).join('\n');
+                const converted = await lyricsApi.convertFurigana(text);
+                const convertedLines = converted.split('\n');
+                return lyrics.map(([time], i) => [
+                    time,
+                    convertedLines[i] ?? lyrics[i][1],
+                ]) as SynchronizedLyricsArray;
+            }
+            return lyrics;
+        },
+        queryKey: ['furigana', lyrics],
+        staleTime: Infinity,
+    });
+};

src/renderer/features/lyrics/lyric-line.tsx

@@ -3,6 +3,7 @@ import { ComponentPropsWithoutRef, memo, useMemo } from 'react';
 
 import styles from './lyric-line.module.css';
 
+import { sanitize } from '/@/renderer/utils/sanitize';
 import { Box } from '/@/shared/components/box/box';
 import { Stack } from '/@/shared/components/stack/stack';
 
@@ -28,7 +29,7 @@ export const LyricLine = memo(
             <Box className={clsx(styles.lyricLine, className)} style={style} {...props}>
                 <Stack gap={0}>
                     {lines.map((line, index) => (
-                        <span key={index}>{line}</span>
+                        <span dangerouslySetInnerHTML={{ __html: sanitize(line) }} key={index} />
                     ))}
                 </Stack>
             </Box>

src/renderer/features/lyrics/lyrics.tsx

@@ -14,6 +14,7 @@ import {
     type LyricsQueryResult,
 } from '/@/renderer/features/lyrics/api/lyrics-api';
 import { openLyricsExportModal } from '/@/renderer/features/lyrics/components/lyrics-export-form';
+import { useFuriganaLyrics } from '/@/renderer/features/lyrics/hooks/use-furigana-lyrics';
 import { LyricsActions } from '/@/renderer/features/lyrics/lyrics-actions';
 import {
     SynchronizedLyrics,
@@ -49,6 +50,7 @@ export const Lyrics = ({ fadeOutNoLyricsMessage = true, settingsKey = 'default'
 
     const {
         enableAutoTranslation,
+        enableFurigana,
         preferLocalLyrics,
         translationApiKey,
         translationApiProvider,
@@ -116,7 +118,15 @@ export const Lyrics = ({ fadeOutNoLyricsMessage = true, settingsKey = 'default'
         return computeSelectedFromResult(data, preferLocalLyrics, indexToUse);
     }, [data, indexToUse, preferLocalLyrics]);
 
-    const displayLyrics = isLyricsDisabled ? null : lyrics;
+    const { data: furiganaConvertedLyrics } = useFuriganaLyrics(lyrics?.lyrics, !!enableFurigana);
+
+    const displayLyrics = useMemo(() => {
+        if (isLyricsDisabled || !lyrics) return null;
+        if (enableFurigana && furiganaConvertedLyrics) {
+            return { ...lyrics, lyrics: furiganaConvertedLyrics };
+        }
+        return lyrics;
+    }, [enableFurigana, isLyricsDisabled, lyrics, furiganaConvertedLyrics]);
 
     const currentOffsetMs = useMemo(() => {
         if (!data) return 0;