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Diffstat (limited to 'FrontEnd/src/components/BlobImage.tsx')
-rw-r--r-- | FrontEnd/src/components/BlobImage.tsx | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/FrontEnd/src/components/BlobImage.tsx b/FrontEnd/src/components/BlobImage.tsx new file mode 100644 index 00000000..259c2210 --- /dev/null +++ b/FrontEnd/src/components/BlobImage.tsx @@ -0,0 +1,26 @@ +import { ComponentPropsWithoutRef, useState, useEffect } from "react"; + +type BlobImageProps = Omit<ComponentPropsWithoutRef<"img">, "src"> & { + imgRef?: React.Ref<HTMLImageElement>; + src?: Blob | string | null; +}; + +export default function BlobImage(props: BlobImageProps) { + const { imgRef, src, ...otherProps } = props; + + const [url, setUrl] = useState<string | null | undefined>(undefined); + + useEffect(() => { + if (src instanceof Blob) { + const url = URL.createObjectURL(src); + setUrl(url); + return () => { + URL.revokeObjectURL(url); + }; + } else { + setUrl(src); + } + }, [src]); + + return <img ref={imgRef} {...otherProps} src={url ?? undefined} />; +} |