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import { h, Component } from 'preact'
const image_types = {
'jpg': 'image/jpeg',
'jpeg': 'image/jpeg',
'png': 'image/png',
'gif': 'image/gif',
}
const audio_types = {
'wav': 'audio/wav',
'mp3': 'audio/mp3',
'flac': 'audio/flac',
'aiff': 'audio/aiff',
}
const video_types = {
'mp4': 'video/mp4',
}
export default function FileViewer({ file }) {
const {
error,
name, path,
date, size,
buf,
} = file
if (error) {
return <div className='fileViewer'>{error}</div>
}
if (!buf) {
return <div className='fileViewer'>File empty</div>
}
const ext = name.split('.').slice(-1)[0].toLowerCase()
let tag;
if (ext in image_types) {
tag = <img src={getURLFor(buf, image_types[ext])} />
} else if (ext in audio_types) {
tag = <audio src={getURLFor(buf, audio_types[ext])} controls autoplay />
} else if (ext in video_types) {
tag = <video src={getURLFor(buf, audio_types[ext])} controls autoplay />
} else {
tag = <div className='text'>{ab2str(buf)}</div>
}
return (
<div className='fileViewer'>{tag}</div>
)
}
const getURLFor = (buf, type) => {
const arrayBufferView = new Uint8Array(buf)
const blob = new Blob([arrayBufferView], { type })
const urlCreator = window.URL || window.webkitURL
return urlCreator.createObjectURL(blob)
}
const ab2str = buf => String.fromCharCode.apply(null, new Uint8Array(buf))
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