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@react-hookz/web

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React hooks done right, for browser and SSR.

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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); }