feat: add ChapterPlayer component for audio chapter playback in Audiobook

qwen3-tts-frontend/src/components/ChapterPlayer.tsx

@@ -0,0 +1,203 @@
+import { useRef, useState, useEffect, memo } from 'react'
+import { useTheme } from '@/contexts/ThemeContext'
+import WaveformPlayer from '@arraypress/waveform-player'
+import '@arraypress/waveform-player/dist/waveform-player.css'
+import { Button } from '@/components/ui/button'
+import { Badge } from '@/components/ui/badge'
+import { X, Loader2 } from 'lucide-react'
+import apiClient from '@/lib/api'
+import { audiobookApi, type AudiobookSegment } from '@/lib/api/audiobook'
+import styles from './AudioPlayer.module.css'
+
+interface TimelineItem {
+  seg: AudiobookSegment
+  startTime: number
+  endTime: number
+}
+
+const ChapterPlayer = memo(({
+  projectId,
+  chapterIndex,
+  chapterTitle,
+  segments,
+  onClose,
+}: {
+  projectId: number
+  chapterIndex: number
+  chapterTitle: string
+  segments: AudiobookSegment[]
+  onClose: () => void
+}) => {
+  const { theme } = useTheme()
+  const [blobUrl, setBlobUrl] = useState<string>('')
+  const [isLoadingChapter, setIsLoadingChapter] = useState(true)
+  const [isLoadingTimeline, setIsLoadingTimeline] = useState(false)
+  const [currentSeg, setCurrentSeg] = useState<AudiobookSegment | null>(null)
+
+  const containerRef = useRef<HTMLDivElement>(null)
+  const playerRef = useRef<WaveformPlayer | null>(null)
+  const timelineRef = useRef<TimelineItem[]>([])
+  const blobUrlRef = useRef<string>('')
+
+  const doneSegs = segments.filter(s => s.status === 'done')
+  const doneSegIds = doneSegs.map(s => s.id).join(',')
+
+  useEffect(() => {
+    let active = true
+    setIsLoadingChapter(true)
+    setCurrentSeg(null)
+    timelineRef.current = []
+
+    if (blobUrlRef.current) {
+      URL.revokeObjectURL(blobUrlRef.current)
+      blobUrlRef.current = ''
+      setBlobUrl('')
+    }
+
+    apiClient.get(audiobookApi.getDownloadUrl(projectId, chapterIndex), { responseType: 'blob' })
+      .then(res => {
+        if (!active) return
+        const url = URL.createObjectURL(res.data)
+        blobUrlRef.current = url
+        setBlobUrl(url)
+        setIsLoadingChapter(false)
+      })
+      .catch(() => {
+        if (active) setIsLoadingChapter(false)
+      })
+
+    return () => { active = false }
+  }, [projectId, chapterIndex])
+
+  useEffect(() => {
+    if (!doneSegIds) return
+    let active = true
+    setIsLoadingTimeline(true)
+    timelineRef.current = []
+
+    const build = async () => {
+      let cumTime = 0
+      const result: TimelineItem[] = []
+      for (const seg of doneSegs) {
+        if (!active) break
+        try {
+          const res = await apiClient.get(
+            audiobookApi.getSegmentAudioUrl(projectId, seg.id),
+            { responseType: 'blob' }
+          )
+          const url = URL.createObjectURL(res.data)
+          const duration = await new Promise<number>(resolve => {
+            const a = new Audio(url)
+            a.addEventListener('loadedmetadata', () => { URL.revokeObjectURL(url); resolve(a.duration || 0) })
+            a.addEventListener('error', () => { URL.revokeObjectURL(url); resolve(0) })
+          })
+          result.push({ seg, startTime: cumTime, endTime: cumTime + duration })
+          cumTime += duration
+        } catch {
+          result.push({ seg, startTime: cumTime, endTime: cumTime + 1 })
+          cumTime += 1
+        }
+      }
+      if (active) {
+        timelineRef.current = result
+        setIsLoadingTimeline(false)
+      }
+    }
+
+    build()
+    return () => { active = false }
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [doneSegIds, projectId])
+
+  useEffect(() => {
+    if (!containerRef.current || !blobUrl) return
+
+    if (playerRef.current) {
+      playerRef.current.destroy()
+      playerRef.current = null
+    }
+
+    const waveformColor = theme === 'dark' ? '#4b5563' : '#d1d5db'
+    const progressColor = theme === 'dark' ? '#a78bfa' : '#7c3aed'
+
+    const player = new WaveformPlayer(containerRef.current, {
+      url: blobUrl,
+      waveformStyle: 'mirror',
+      height: 60,
+      barWidth: 3,
+      barSpacing: 1,
+      samples: 200,
+      waveformColor,
+      progressColor,
+      showTime: true,
+      showPlaybackSpeed: false,
+      autoplay: false,
+      enableMediaSession: true,
+      onTimeUpdate: (ct: number) => {
+        const tl = timelineRef.current
+        const item = tl.find(t => ct >= t.startTime && ct < t.endTime)
+        setCurrentSeg(item?.seg ?? null)
+      },
+    })
+    playerRef.current = player
+
+    setTimeout(() => {
+      containerRef.current?.querySelectorAll('button').forEach(btn => {
+        if (!btn.hasAttribute('type')) btn.setAttribute('type', 'button')
+      })
+    }, 0)
+
+    return () => {
+      if (playerRef.current) {
+        playerRef.current.destroy()
+        playerRef.current = null
+      }
+    }
+  }, [blobUrl, theme])
+
+  useEffect(() => {
+    return () => {
+      if (blobUrlRef.current) URL.revokeObjectURL(blobUrlRef.current)
+    }
+  }, [])
+
+  return (
+    <div className="px-3 py-2.5 border-b bg-primary/5">
+      <div className="flex items-center justify-between mb-2">
+        <span className="text-xs font-medium flex items-center gap-2 min-w-0">
+          <span className="truncate text-foreground/80">{chapterTitle}</span>
+          {isLoadingTimeline && !isLoadingChapter && (
+            <span className="inline-flex items-center gap-1 text-[11px] text-muted-foreground shrink-0">
+              <Loader2 className="h-2.5 w-2.5 animate-spin" />字幕轨道加载中…
+            </span>
+          )}
+        </span>
+        <Button type="button" size="icon" variant="ghost" className="h-5 w-5" onClick={onClose}>
+          <X className="h-3 w-3" />
+        </Button>
+      </div>
+
+      {isLoadingChapter ? (
+        <div className="flex items-center gap-2 text-xs text-muted-foreground py-3">
+          <Loader2 className="h-3 w-3 animate-spin" />合并音频中…
+        </div>
+      ) : (
+        <>
+          <div className={styles.audioPlayerWrapper}>
+            <div ref={containerRef} className={styles.waveformContainer} />
+          </div>
+          {currentSeg && (
+            <div className="mt-2 flex items-start gap-2 p-2 rounded-md bg-background border border-border/60">
+              <Badge variant="outline" className="shrink-0 text-xs font-normal mt-0.5">
+                {currentSeg.character_name || '未知角色'}
+              </Badge>
+              <span className="text-xs leading-relaxed text-foreground/80">{currentSeg.text}</span>
+            </div>
+          )}
+        </>
+      )}
+    </div>
+  )
+})
+ChapterPlayer.displayName = 'ChapterPlayer'
+export { ChapterPlayer }

qwen3-tts-frontend/src/pages/Audiobook.tsx

@@ -1,7 +1,7 @@
 import { useState, useEffect, useCallback, useRef } from 'react'
 import { useTranslation } from 'react-i18next'
 import { toast } from 'sonner'
-import { Book, BookOpen, Plus, Trash2, RefreshCw, Download, ChevronDown, ChevronUp, Play, Square, Pencil, Check, X, Loader2, Zap, Settings2, PanelLeftClose, PanelLeftOpen, Wand2, Volume2, Bot, Flame } from 'lucide-react'
+import { Book, BookOpen, Plus, Trash2, RefreshCw, Download, ChevronDown, ChevronUp, Play, Square, Pencil, Check, X, Loader2, Zap, Settings2, PanelLeftClose, PanelLeftOpen, Wand2, Volume2, Bot, Flame, Headphones } from 'lucide-react'
 import { Button } from '@/components/ui/button'
 import { Input } from '@/components/ui/input'
 import { Textarea } from '@/components/ui/textarea'
@@ -10,6 +10,7 @@ import { Progress } from '@/components/ui/progress'
 import { Dialog, DialogContent, DialogHeader, DialogTitle } from '@/components/ui/dialog'
 import { Navbar } from '@/components/Navbar'
 import { AudioPlayer } from '@/components/AudioPlayer'
+import { ChapterPlayer } from '@/components/ChapterPlayer'
 import { audiobookApi, type AudiobookProject, type AudiobookProjectDetail, type AudiobookCharacter, type AudiobookSegment, type ScriptGenerationRequest, type NsfwScriptGenerationRequest } from '@/lib/api/audiobook'
 import { RotateCcw } from 'lucide-react'
 import apiClient, { formatApiError, adminApi, authApi } from '@/lib/api'
@@ -1443,6 +1444,7 @@ function ChaptersPanel({
   const [savingSegId, setSavingSegId] = useState<number | null>(null)
   const [regeneratingSegs, setRegeneratingSegs] = useState<Set<number>>(new Set())
   const [audioVersions, setAudioVersions] = useState<Record<number, number>>({})
+  const [chapterPlayerChIdx, setChapterPlayerChIdx] = useState<number | null>(null)
   const prevSegStatusRef = useRef<Record<number, string>>({})
   const initialExpandDoneRef = useRef(false)
 
@@ -1670,6 +1672,15 @@ function ChaptersPanel({
                         }}>
                           <RefreshCw className="h-3 w-3 mr-0.5" /><Volume2 className="h-3 w-3 mr-1" />{t('projectCard.chapters.generate')}
                         </Button>
+                        <Button
+                          size="icon"
+                          variant={chapterPlayerChIdx === ch.chapter_index ? 'secondary' : 'ghost'}
+                          className="h-6 w-6"
+                          onClick={() => setChapterPlayerChIdx(prev => prev === ch.chapter_index ? null : ch.chapter_index)}
+                          title="播放本章"
+                        >
+                          <Headphones className="h-3 w-3" />
+                        </Button>
                         <Button size="icon" variant="ghost" className="h-6 w-6" onClick={() => onDownload(ch.chapter_index)} title={t('projectCard.downloadAll')}>
                           <Download className="h-3 w-3" />
                         </Button>
@@ -1827,6 +1838,23 @@ function ChaptersPanel({
         </div>
       )}
 
+      {chapterPlayerChIdx !== null && (() => {
+        const activeCh = detail?.chapters.find(c => c.chapter_index === chapterPlayerChIdx)
+        const activeSegs = segments.filter(s => s.chapter_index === chapterPlayerChIdx)
+        if (!activeCh) return null
+        return (
+          <div className="border-t shrink-0">
+            <ChapterPlayer
+              projectId={project.id}
+              chapterIndex={chapterPlayerChIdx}
+              chapterTitle={activeCh.title || t('projectCard.chapters.defaultTitle', { index: chapterPlayerChIdx + 1 })}
+              segments={activeSegs}
+              onClose={() => setChapterPlayerChIdx(null)}
+            />
+          </div>
+        )
+      })()}
+
       {doneCount > 0 && (
         <div className="px-3 py-2 border-t shrink-0">
           <SequentialPlayer segments={segments} projectId={project.id} onPlayingChange={onSequentialPlayingChange} />