Created
July 22, 2021 12:55
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Using canvas to create static gif
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import { css } from '@emotion/core' | |
import { Result } from 'antd' | |
import { useEffect, useRef } from 'react' | |
import { ListTapes } from 'types/graphql' | |
const previewCss = css` | |
border-radius: 12px; | |
max-height: 600px; | |
max-width: 100%; | |
` | |
interface TapePreviewProps { | |
tape: ListTapes['tapePage']['tapes'][0] | |
autoPlay?: boolean | |
focused?: boolean | |
} | |
const TapePreview = ({ tape, autoPlay = false }: TapePreviewProps) => { | |
const { contentType, tapeUrl } = tape | |
function playVideo(e) { | |
if (autoPlay === false) { | |
e.target.play() | |
} | |
} | |
function stopVideo(e) { | |
if (autoPlay === false) { | |
e.target.pause() | |
e.target.currentTime = 0 | |
} | |
} | |
const staticGifRef = useRef<HTMLCanvasElement>() | |
const imgRef = useRef<HTMLImageElement>() | |
useEffect(() => { | |
const ctx = staticGifRef?.current?.getContext('2d') | |
const image = new Image() | |
image.src = imgRef?.current?.src | |
ctx?.drawImage(image, 0, 0) | |
}, [staticGifRef, imgRef]) | |
if (contentType.includes('image')) { | |
return ( | |
<div className="group"> | |
<canvas | |
ref={staticGifRef} | |
className="fixed w-full opacity-100 group-hover:opacity-0" | |
></canvas> | |
<img | |
ref={imgRef} | |
src={tapeUrl} | |
css={previewCss} | |
alt="" | |
className="object-cover opacity-0 group-hover:opacity-100" | |
/> | |
</div> | |
) | |
} else if (contentType.includes('video')) { | |
return ( | |
<video | |
css={previewCss} | |
muted | |
playsInline | |
autoPlay={autoPlay} | |
onMouseOver={(event) => playVideo(event)} | |
onMouseOut={(event) => stopVideo(event)} | |
onFocus={(event) => playVideo(event)} | |
onBlur={(event) => stopVideo(event)} | |
loop | |
className="object-cover" | |
> | |
<source src={tapeUrl} type="video/mp4"></source> | |
</video> | |
) | |
} else { | |
return ( | |
<Result | |
status="404" | |
title="404" | |
subTitle="That tape doesn't look quite right" | |
/> | |
) | |
} | |
} | |
export default TapePreview |
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