@react-hookz/web
Version:
React hooks done right, for browser and SSR.
35 lines (34 loc) • 1.46 kB
JavaScript
import { useMemo } from 'react';
import { useEventListener, useSyncedRef } from '..';
import { isBrowser } from "../util/const.js";
import { yieldFalse, yieldTrue } from "../util/misc.js";
const createKeyPredicate = (keyFilter) => {
if (typeof keyFilter === 'function')
return keyFilter;
if (typeof keyFilter === 'string')
return (ev) => ev.key === keyFilter;
return keyFilter ? yieldTrue : yieldFalse;
};
const WINDOW_OR_NULL = isBrowser ? window : null;
/**
* Executes callback when keyboard event occurred on target (window by default).
*
* @param keyOrPredicate Filters keypresses on which `callback` will be executed.
* @param callback Function to call when key is pressed and `keyOrPredicate` matches positive.
* @param deps Dependencies list that will be passed to underlying `useMemo`.
* @param options Hook options.
*/
export function useKeyboardEvent(keyOrPredicate, callback, deps, options = {}) {
const { event = 'keydown', target = WINDOW_OR_NULL, eventOptions } = options;
const cbRef = useSyncedRef(callback);
const handler = useMemo(() => {
const predicate = createKeyPredicate(keyOrPredicate);
return function kbEventHandler(ev) {
if (predicate(ev)) {
cbRef.current.call(this, ev);
}
};
// eslint-disable-next-line react-hooks/exhaustive-deps
}, deps);
useEventListener(target, event, handler, eventOptions);
}