react-use/src/useLongPress.ts
2020-02-04 07:12:19 +05:30

59 lines
1.5 KiB
TypeScript

/* eslint-disable */
import { useCallback, useRef } from 'react';
interface Options {
isPreventDefault?: boolean;
delay?: number;
}
const isTouchEvent = (event: Event): event is TouchEvent => {
return 'touches' in event;
};
const preventDefault = (event: Event) => {
if (!isTouchEvent(event)) return;
if (event.touches.length < 2 && event.preventDefault) {
event.preventDefault();
}
};
const useLongPress = (
callback: (e: TouchEvent | MouseEvent) => void,
{ isPreventDefault = true, delay = 300 }: Options = {}
) => {
const timeout = useRef<ReturnType<typeof setTimeout>>();
const target = useRef<EventTarget>();
const start = useCallback(
(event: TouchEvent | MouseEvent) => {
// prevent ghost click on mobile devices
if (isPreventDefault && event.target) {
event.target.addEventListener('touchend', preventDefault, { passive: false });
target.current = event.target;
}
timeout.current = setTimeout(() => callback(event), delay);
},
[callback, delay]
);
const clear = useCallback(() => {
// clearTimeout and removeEventListener
timeout.current && clearTimeout(timeout.current);
if (isPreventDefault && target.current) {
target.current.removeEventListener('touchend', preventDefault);
}
}, []);
return {
onMouseDown: (e: any) => start(e),
onTouchStart: (e: any) => start(e),
onMouseUp: clear,
onMouseLeave: clear,
onTouchEnd: clear,
} as const;
};
export default useLongPress;