mirror of
https://github.com/streetwriters/notesnook.git
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59 lines
1.7 KiB
TypeScript
59 lines
1.7 KiB
TypeScript
/*
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This file is part of the Notesnook project (https://notesnook.com/)
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Copyright (C) 2023 Streetwriters (Private) Limited
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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import { useCallback, useRef } from "react";
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export function useDragHandler(id: string) {
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const isDraggingOver = useRef(false);
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const bounds = useRef<DOMRect>();
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const isDragLeaving = useCallback((e: React.DragEvent) => {
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if (
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!isDraggingOver.current ||
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!bounds.current ||
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(e.clientX >= bounds.current.x &&
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e.clientX <= bounds.current.right &&
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e.clientY >= bounds.current.y &&
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e.clientY <= bounds.current.bottom)
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)
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return false;
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isDraggingOver.current = false;
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bounds.current = undefined;
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return true;
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}, []);
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const isDragEntering = useCallback(
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(e: React.DragEvent) => {
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if (
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isDraggingOver.current ||
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!(e.target instanceof HTMLElement) ||
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(e.target.id !== id && !e.target.closest(`#${id}`))
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)
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return false;
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isDraggingOver.current = true;
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bounds.current = e.target.closest(`#${id}`)!.getBoundingClientRect();
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return true;
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},
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[id]
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);
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return { isDragEntering, isDragLeaving };
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}
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