61 lines
2.2 KiB
TypeScript
61 lines
2.2 KiB
TypeScript
import { FunctionComponent, useEffect, useRef, useState } from 'react'
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import { ReactReader } from 'react-reader'
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import type { Rendition } from 'epubjs'
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import Loading from '../Loading'
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import DownloadBtn from '../DownloadBtn'
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const EPUBPreview: FunctionComponent<{file: any}> = ({ file }) => {
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const [epubContainerWidth, setEpubContainerWidth] = useState(400)
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const epubContainer = useRef<HTMLDivElement>(null)
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useEffect(() => {
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setEpubContainerWidth(epubContainer.current ? epubContainer.current.offsetWidth : 400)
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}, [])
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const [location, setLocation] = useState<string>()
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const onLocationChange = (cfiStr: string) => setLocation(cfiStr)
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// Fix for not valid epub files according to
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// https://github.com/gerhardsletten/react-reader/issues/33#issuecomment-673964947
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const fixEpub = (rendition: Rendition) => {
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const spineGet = rendition.book.spine.get.bind(rendition.book.spine)
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rendition.book.spine.get = function (target) {
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const targetStr = target as string
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let t = spineGet(target)
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while (t == null && targetStr.startsWith('../')) {
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target = targetStr.substring(3)
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t = spineGet(target)
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}
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return t
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}
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}
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return (
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<>
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<div
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className="dark:bg-gray-900 md:p-3 no-scrollbar flex flex-col w-full overflow-scroll bg-white rounded"
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style={{ maxHeight: '90vh' }}
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>
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<div className="no-scrollbar flex-1 w-full overflow-scroll" ref={epubContainer} style={{ minHeight: '70vh' }}>
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<div style={{ position: 'absolute', width: epubContainerWidth, height: '70vh' }}>
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<ReactReader
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url={file['@microsoft.graph.downloadUrl']}
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getRendition={(rendition) => fixEpub(rendition)}
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loadingView={<Loading loadingText="Loading EPUB ..." />}
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location={location}
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locationChanged={onLocationChange}
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epubInitOptions={{ openAs: 'epub' }}
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epubOptions={{ flow: 'scrolled' }}
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/>
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</div>
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</div>
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</div>
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<div className="mt-4">
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<DownloadBtn downloadUrl={file['@microsoft.graph.downloadUrl']} />
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</div>
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</>
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)
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}
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export default EPUBPreview
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