File size: 5,195 Bytes
345e5f1 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 | import { useEffect, useRef, forwardRef, useState } from 'react'
import WaveSurfer from 'wavesurfer.js'
import { PITCH_WIDTH } from '../constants'
export type AudioTrackProps = {
audioUrl: string | null
muted: boolean
onSeek: (seconds: number) => void
mediaElement?: HTMLAudioElement | null
playheadSeconds: number
gridSecondWidth: number
minContentWidth?: number // Minimum width to match MIDI editor area
}
export const AudioTrack = forwardRef<HTMLDivElement, AudioTrackProps>(
({ audioUrl, muted, onSeek, playheadSeconds, gridSecondWidth, minContentWidth = 0 }, ref) => {
const containerRef = useRef<HTMLDivElement | null>(null)
const waveRef = useRef<WaveSurfer | null>(null)
const [waveWidth, setWaveWidth] = useState(0)
useEffect(() => {
if (!containerRef.current) return
if (!audioUrl) {
try {
waveRef.current?.destroy()
} catch {
// ignore teardown errors
}
waveRef.current = null
setWaveWidth(0)
return
}
let cancelled = false
// Clean up existing instance
if (waveRef.current) {
try {
waveRef.current.destroy()
} catch {
// ignore teardown errors
}
}
waveRef.current = WaveSurfer.create({
container: containerRef.current,
waveColor: '#4b64bc',
progressColor: '#4b64bc',
cursorColor: 'transparent',
barWidth: 2,
barGap: 2,
height: 60,
normalize: true,
minPxPerSec: gridSecondWidth,
interact: false,
hideScrollbar: true,
autoScroll: false,
})
waveRef.current.load(audioUrl).catch(() => null)
waveRef.current.on('error', () => null)
waveRef.current.on('ready', () => {
if (cancelled || !waveRef.current) return
const duration = waveRef.current.getDuration()
const requiredWidth = duration * gridSecondWidth
setWaveWidth(requiredWidth)
})
return () => {
cancelled = true
try {
waveRef.current?.destroy()
} catch {
// ignore teardown errors
}
waveRef.current = null
}
}, [audioUrl, gridSecondWidth])
useEffect(() => {
if (!waveRef.current) return
waveRef.current.setOptions({
waveColor: muted ? '#9aa6b2' : '#4b64bc',
progressColor: muted ? '#c0c9d4' : '#4b64bc',
})
}, [muted])
if (!audioUrl) return null
// Content width should be at least as wide as MIDI editor
const contentWidth = Math.max(waveWidth, minContentWidth)
return (
<div
className="audio-track-row"
style={{
display: 'flex',
borderBottom: '1px solid var(--border-soft)',
height: '70px',
flexShrink: 0
}}
>
<div
className="audio-gutter"
style={{
width: PITCH_WIDTH,
flexShrink: 0,
background: 'var(--panel-strong)',
borderRight: '1px solid var(--border-subtle)',
display: 'flex',
alignItems: 'center',
justifyContent: 'center',
fontSize: '11px',
color: 'var(--text-muted)',
fontWeight: 600,
}}
>
AUDIO
</div>
{/* Scroll Mask - Controlled by parent via ref */}
<div
ref={ref}
className="audio-scroll-mask"
style={{
flex: 1,
overflow: 'hidden',
position: 'relative',
background: 'var(--panel-soft)',
}}
onClick={(e) => {
const rect = e.currentTarget.getBoundingClientRect()
const scrollMask = e.currentTarget as HTMLDivElement
const x = e.clientX - rect.left + scrollMask.scrollLeft
const seconds = x / gridSecondWidth
onSeek(seconds)
}}
>
{/* Container that matches MIDI editor width */}
<div
className="audio-content"
style={{
width: contentWidth > 0 ? contentWidth : '100%',
height: '100%',
position: 'relative'
}}
>
{/* WaveSurfer container - only as wide as audio */}
<div
ref={containerRef}
className="wave-container"
style={{
width: waveWidth > 0 ? waveWidth : '100%',
height: '100%',
position: 'absolute',
left: 0,
top: 0
}}
/>
{/* Custom Playhead */}
<div
className="audio-playhead"
style={{
position: 'absolute',
top: 0,
bottom: 0,
width: '2px',
background: '#ff7043',
boxShadow: '0 0 12px rgba(255, 112, 67, 0.6)',
left: playheadSeconds * gridSecondWidth,
zIndex: 10,
pointerEvents: 'none',
}}
/>
</div>
</div>
</div>
)
}
)
|