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Fix: keep external media on destroy (katspaugh#3233)
* Fix: keep external media on destroy * Lint * Prettier
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,143 @@ | ||
| // React example | ||
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| /* | ||
| <html> | ||
| <script src="https://unpkg.com/react@18/umd/react.production.min.js"></script> | ||
| <script src="https://unpkg.com/react-dom@18/umd/react-dom.production.min.js"></script> | ||
| <script src="https://unpkg.com/@babel/standalone/babel.min.js"></script> | ||
| </html> | ||
| */ | ||
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| // Import React hooks | ||
| const { useRef, useState, useEffect, useCallback, memo } = React | ||
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| // Import WaveSurfer | ||
| import WaveSurfer from 'https://unpkg.com/wavesurfer.js@7/dist/wavesurfer.esm.js' | ||
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| // WaveSurfer hook | ||
| const useWavesurfer = (containerRef, options) => { | ||
| const [wavesurfer, setWavesurfer] = useState(null) | ||
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| // Initialize wavesurfer when the container mounts | ||
| // or any of the props change | ||
| useEffect(() => { | ||
| if (!containerRef.current) return | ||
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| const ws = WaveSurfer.create({ | ||
| ...options, | ||
| container: containerRef.current, | ||
| }) | ||
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| setWavesurfer(ws) | ||
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| return () => { | ||
| ws.destroy() | ||
| } | ||
| }, [options, containerRef]) | ||
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| return wavesurfer | ||
| } | ||
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| // Create a React component that will render wavesurfer. | ||
| // Props are wavesurfer options. | ||
| const WaveSurferPlayer = memo((props) => { | ||
| const containerRef = useRef() | ||
| const [isPlaying, setIsPlaying] = useState(false) | ||
| const wavesurfer = useWavesurfer(containerRef, props) | ||
| const { onPlay, onReady } = props | ||
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| // On play button click | ||
| const onPlayClick = useCallback(() => { | ||
| wavesurfer.playPause() | ||
| }, [wavesurfer]) | ||
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| // Initialize wavesurfer when the container mounts | ||
| // or any of the props change | ||
| useEffect(() => { | ||
| if (!wavesurfer) return | ||
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| const getPlayerParams = () => ({ | ||
| media: wavesurfer.getMediaElement(), | ||
| peaks: wavesurfer.exportPeaks(), | ||
| }) | ||
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| const subscriptions = [ | ||
| wavesurfer.on('ready', () => { | ||
| onReady && onReady(getPlayerParams()) | ||
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| setIsPlaying(wavesurfer.isPlaying()) | ||
| }), | ||
| wavesurfer.on('play', () => { | ||
| onPlay && | ||
| onPlay((prev) => { | ||
| const newParams = getPlayerParams() | ||
| if (!prev || prev.media !== newParams.media) { | ||
| if (prev) { | ||
| prev.media.pause() | ||
| prev.media.currentTime = 0 | ||
| } | ||
| return newParams | ||
| } | ||
| return prev | ||
| }) | ||
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| setIsPlaying(true) | ||
| }), | ||
| wavesurfer.on('pause', () => setIsPlaying(false)), | ||
| ] | ||
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| return () => { | ||
| subscriptions.forEach((unsub) => unsub()) | ||
| } | ||
| }, [wavesurfer, onPlay, onReady]) | ||
|
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| return ( | ||
| <div style={{ display: 'flex', gap: '1em', marginBottom: '1em' }}> | ||
| <button onClick={onPlayClick}>{isPlaying ? '⏸️' : '▶️'}</button> | ||
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| <div ref={containerRef} style={{ minWidth: '200px' }} /> | ||
| </div> | ||
| ) | ||
| }) | ||
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| const Playlist = memo(({ urls, setCurrentPlayer }) => { | ||
| return urls.map((url, index) => ( | ||
| <WaveSurferPlayer | ||
| key={url} | ||
| height={100} | ||
| waveColor="rgb(200, 0, 200)" | ||
| progressColor="rgb(100, 0, 100)" | ||
| url={url} | ||
| onPlay={setCurrentPlayer} | ||
| onReady={index === 0 ? setCurrentPlayer : undefined} | ||
| /> | ||
| )) | ||
| }) | ||
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| const audioUrls = ['/examples/audio/audio.wav', '/examples/audio/demo.wav', '/examples/audio/stereo.mp3'] | ||
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| const App = () => { | ||
| const [currentPlayer, setCurrentPlayer] = useState() | ||
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| return ( | ||
| <> | ||
| <p>Playlist</p> | ||
| <Playlist urls={audioUrls} setCurrentPlayer={setCurrentPlayer} /> | ||
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| <p>Global player</p> | ||
| {currentPlayer && ( | ||
| <WaveSurferPlayer | ||
| height={50} | ||
| waveColor="blue" | ||
| progressColor="purple" | ||
| media={currentPlayer.media} | ||
| peaks={currentPlayer.peaks} | ||
| /> | ||
| )} | ||
| </> | ||
| ) | ||
| } | ||
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| // Create a React root and render the app | ||
| const root = ReactDOM.createRoot(document.body) | ||
| root.render(<App />) |
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