File size: 5,976 Bytes
004f460 | 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 | import { useEffect, useRef, useState } from 'react'
import { useCamera } from '../media/useCamera'
import { useRecorder } from '../media/useRecorder'
import { fileToDataUri, validateAudioFile, validateImageFile } from '../media/validate'
import { useI18n } from '../i18n'
import { Button } from './ui'
import type { MessageKey } from '../i18n/en'
export type Modality = 'face' | 'fingerprint' | 'voice'
function toImagePreview(v: string): string {
return v.startsWith('data:') ? v : `data:image/jpeg;base64,${v}`
}
interface Props {
modality: Modality
id: string
value: string | null
onChange: (dataUri: string | null) => void
demoSample?: string
}
/** One modality's sample control. Face = camera + upload + demo; Fingerprint =
* upload + demo (optical IMAGE, never a device sensor); Voice = record + upload + demo.
* Media tracks are always stopped on capture / replace / unmount. */
export function SampleCapture({ modality, id, value, onChange, demoSample }: Props) {
const { t } = useI18n()
const cam = useCamera()
const rec = useRecorder()
const [error, setError] = useState<MessageKey | null>(null)
const [camOpen, setCamOpen] = useState(false)
const fileRef = useRef<HTMLInputElement | null>(null)
// Push recorded audio up to the parent when it becomes available.
useEffect(() => {
if (modality === 'voice' && rec.dataUri) { onChange(rec.dataUri); setError(null) }
// eslint-disable-next-line react-hooks/exhaustive-deps
}, [rec.dataUri])
async function onFile(e: React.ChangeEvent<HTMLInputElement>) {
const file = e.target.files?.[0]
if (!file) return
const err = modality === 'voice' ? validateAudioFile(file) : validateImageFile(file)
if (err) { setError(err); return }
try { onChange(await fileToDataUri(file)); setError(null) } catch { setError('bio.err.readFailed') }
}
function useDemo() {
if (demoSample) { onChange(demoSample); setError(null); setCamOpen(false); cam.stop() }
}
function openCamera() { setCamOpen(true); setError(null); void cam.start() }
function doCapture() {
const shot = cam.capture()
if (shot) { onChange(shot); setError(null) }
setCamOpen(false); cam.stop() // stop tracks immediately after the still is taken
}
function clear() { onChange(null); rec.reset(); setError(null) }
const label = t(`bio.modality.${modality}` as MessageKey)
return (
<fieldset className="sample" aria-labelledby={`${id}-lbl`}>
<legend id={`${id}-lbl`}>{label}</legend>
{/* Existing sample preview */}
{value && modality !== 'voice' && (
<div className="sample-preview">
<img src={toImagePreview(value)} alt={t('bio.preview', { m: label })} />
<Button onClick={clear}>{t('bio.retake')}</Button>
</div>
)}
{value && modality === 'voice' && (
<div className="sample-preview">
{rec.playbackUrl && <audio src={rec.playbackUrl} controls aria-label={t('bio.playback')} />}
<Button onClick={clear}>{t('bio.delete')}</Button>
</div>
)}
{/* Capture controls (hidden once a sample exists) */}
{!value && (
<div className="sample-controls">
{modality === 'face' && !camOpen && (
<Button onClick={openCamera}>{t('bio.useCamera')}</Button>
)}
{modality === 'face' && camOpen && (
<div className="cam">
{cam.status === 'live' && (
<>
<video ref={cam.videoRef} playsInline muted aria-label={t('bio.cameraPreview')} />
<div className="row">
<Button onClick={doCapture}>{t('bio.capture')}</Button>
<Button onClick={() => { setCamOpen(false); cam.stop() }}>{t('bio.cancel')}</Button>
{cam.devices.length > 1 && (
<select aria-label={t('bio.switchCamera')} value={cam.activeDeviceId ?? ''}
onChange={(e) => cam.switchTo(e.target.value)}>
{cam.devices.map((d, i) => <option key={d.deviceId} value={d.deviceId}>{d.label || `Camera ${i + 1}`}</option>)}
</select>
)}
</div>
</>
)}
{cam.status === 'requesting' && <p className="hint">{t('bio.cameraRequesting')}</p>}
{cam.status === 'denied' && <p className="field-error" role="alert">{t('bio.cameraDenied')}</p>}
{cam.status === 'nocamera' && <p className="field-error" role="alert">{t('bio.cameraNone')}</p>}
{cam.status === 'inuse' && <p className="field-error" role="alert">{t('bio.cameraInUse')}</p>}
{cam.status === 'error' && <p className="field-error" role="alert">{t('bio.cameraError')}</p>}
</div>
)}
{modality === 'voice' && (
<div className="rec">
{rec.status !== 'recording'
? <Button onClick={() => void rec.start()}>{t('bio.record')}</Button>
: <Button onClick={rec.stop}>{t('bio.stop')} ({rec.elapsed}s)</Button>}
{rec.status === 'denied' && <p className="field-error" role="alert">{t('bio.micDenied')}</p>}
{rec.status === 'unsupported' && <p className="field-error" role="alert">{t('bio.micUnsupported')}</p>}
</div>
)}
<label className="upload-btn">
{modality === 'voice' ? t('bio.uploadAudio') : t('bio.uploadImage')}
<input ref={fileRef} type="file" hidden
accept={modality === 'voice' ? 'audio/*' : 'image/*'} onChange={onFile} />
</label>
{demoSample && <Button onClick={useDemo}>{t('bio.useDemo')}</Button>}
</div>
)}
{modality === 'fingerprint' && (
<p className="hint">{t('bio.fingerprintNote')}</p>
)}
{error && <p className="field-error" role="alert">{t(error)}</p>}
</fieldset>
)
}
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