115 lines
3.3 KiB
TypeScript
115 lines
3.3 KiB
TypeScript
import type { FC } from '../../../lib/teact/teact';
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import React, { memo, useEffect, useRef } from '../../../lib/teact/teact';
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import buildClassName from '../../../util/buildClassName';
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import captureEscKeyListener from '../../../util/captureEscKeyListener';
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import getFilesFromDataTransferItems from './helpers/getFilesFromDataTransferItems';
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import useLastCallback from '../../../hooks/useLastCallback';
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import usePrevious from '../../../hooks/usePrevious';
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import useShowTransition from '../../../hooks/useShowTransition';
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import Portal from '../../ui/Portal';
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import DropTarget from './DropTarget';
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import './DropArea.scss';
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export type OwnProps = {
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isOpen: boolean;
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withQuick?: boolean;
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onHide: NoneToVoidFunction;
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onFileSelect: (files: File[], suggestCompression?: boolean) => void;
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};
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export enum DropAreaState {
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None = 'none',
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Document = 'document',
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QuickFile = 'quick_file',
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}
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const DROP_LEAVE_TIMEOUT_MS = 150;
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const DropArea: FC<OwnProps> = ({
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isOpen, withQuick, onHide, onFileSelect,
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}) => {
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// eslint-disable-next-line no-null/no-null
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const hideTimeoutRef = useRef<number>(null);
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const prevWithQuick = usePrevious(withQuick);
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const { shouldRender, transitionClassNames } = useShowTransition(isOpen);
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useEffect(() => (isOpen ? captureEscKeyListener(onHide) : undefined), [isOpen, onHide]);
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const handleFilesDrop = useLastCallback(async (e: React.DragEvent<HTMLDivElement>) => {
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const { dataTransfer: dt } = e;
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let files: File[] = [];
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if (dt.files && dt.files.length > 0 && (!dt.items || !dt.items.length)) {
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files = files.concat(Array.from(dt.files));
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} else if (dt.items && dt.items.length > 0) {
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const folderFiles = await getFilesFromDataTransferItems(dt.items);
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if (folderFiles?.length) {
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files = files.concat(folderFiles);
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}
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}
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onHide();
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onFileSelect(files, withQuick ? false : undefined);
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});
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const handleQuickFilesDrop = useLastCallback((e: React.DragEvent<HTMLDivElement>) => {
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const { dataTransfer: dt } = e;
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if (dt.files && dt.files.length > 0) {
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onHide();
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onFileSelect(Array.from(dt.files), true);
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}
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});
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const handleDragLeave = useLastCallback((e: React.DragEvent<HTMLDivElement>) => {
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e.stopPropagation();
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const { target: fromTarget, relatedTarget: toTarget } = e;
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// Esc button pressed during drag event
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if ((fromTarget as HTMLDivElement).matches('.DropTarget, .DropArea') && !toTarget) {
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hideTimeoutRef.current = window.setTimeout(() => {
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onHide();
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}, DROP_LEAVE_TIMEOUT_MS);
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}
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});
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const handleDragOver = () => {
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if (hideTimeoutRef.current) {
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window.clearTimeout(hideTimeoutRef.current);
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}
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};
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if (!shouldRender) {
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return undefined;
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}
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const shouldRenderQuick = withQuick || prevWithQuick;
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const className = buildClassName(
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'DropArea',
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transitionClassNames,
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);
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return (
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<Portal containerId="#middle-column-portals">
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<div
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className={className}
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onDragLeave={handleDragLeave}
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onDragOver={handleDragOver}
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onDrop={onHide}
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onClick={onHide}
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>
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<DropTarget onFileSelect={handleFilesDrop} isGeneric={!shouldRenderQuick} />
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{shouldRenderQuick && <DropTarget onFileSelect={handleQuickFilesDrop} isQuick />}
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</div>
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</Portal>
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);
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};
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export default memo(DropArea);
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