70 lines
2.2 KiB
TypeScript
70 lines
2.2 KiB
TypeScript
import { useCallback, useRef, useState } from 'react';
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export interface FileWithPath extends File {
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readonly path?: string;
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}
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export default function useFileInput({ directory }: { directory?: boolean }) {
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const [selectedFiles, setSelectedFiles] = useState<File[]>([]);
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const inputRef = useRef<HTMLInputElement>();
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const openSelectorDialog = useCallback(() => {
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if (inputRef.current) {
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inputRef.current.value = null;
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inputRef.current.click();
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}
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}, []);
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const handleChange: React.ChangeEventHandler<HTMLInputElement> = async (
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event
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) => {
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if (!!event.target && !!event.target.files) {
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const files = [...event.target.files].map((file) =>
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toFileWithPath(file)
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);
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setSelectedFiles(files);
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}
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};
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const getInputProps = useCallback(
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() => ({
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type: 'file',
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multiple: true,
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style: { display: 'none' },
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...(directory ? { directory: '', webkitdirectory: '' } : {}),
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ref: inputRef,
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onChange: handleChange,
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}),
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[]
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);
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return {
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getInputProps,
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open: openSelectorDialog,
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selectedFiles: selectedFiles,
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};
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}
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// https://github.com/react-dropzone/file-selector/blob/master/src/file.ts#L88
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export function toFileWithPath(file: File, path?: string): FileWithPath {
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if (typeof (file as any).path !== 'string') {
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// on electron, path is already set to the absolute path
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const { webkitRelativePath } = file;
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Object.defineProperty(file, 'path', {
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value:
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typeof path === 'string'
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? path
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: typeof webkitRelativePath === 'string' && // If <input webkitdirectory> is set,
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// the File will have a {webkitRelativePath} property
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// https://developer.mozilla.org/en-US/docs/Web/API/HTMLInputElement/webkitdirectory
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webkitRelativePath.length > 0
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? webkitRelativePath
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: file.name,
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writable: false,
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configurable: false,
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enumerable: true,
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});
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}
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return file;
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}
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