Carlos Florêncio
120 lines
3.1 KiB
TypeScript
120 lines
3.1 KiB
TypeScript
/**
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* React hook for handling keyboard shortcuts
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*/
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import { useEffect, useCallback, useRef } from 'react';
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import type { KeyboardShortcut } from '@/lib/keyboard/constants';
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import { matchesShortcut } from '@/lib/keyboard/utils';
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export type KeyboardShortcutOptions = {
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/** Whether the shortcut is enabled (default: true) */
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enabled?: boolean;
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/** Whether to prevent default behavior (default: true) */
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preventDefault?: boolean;
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/** Whether to stop event propagation (default: false) */
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stopPropagation?: boolean;
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/** Target element (default: window) */
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target?: HTMLElement | Window | null;
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};
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/**
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* Hook for handling global keyboard shortcuts
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*
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* @example
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* ```tsx
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* useKeyboardShortcut(SHORTCUTS.SUBMIT, handleSubmit);
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* ```
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*/
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export function useKeyboardShortcut(
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shortcut: KeyboardShortcut,
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callback: (event: KeyboardEvent) => void,
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options: KeyboardShortcutOptions = {}
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) {
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const {
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enabled = true,
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preventDefault = true,
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stopPropagation = false,
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target = typeof window !== 'undefined' ? window : null,
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} = options;
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// Use ref to avoid recreating the handler on every render
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const callbackRef = useRef(callback);
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callbackRef.current = callback;
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const handleKeyDown = useCallback(
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(event: KeyboardEvent) => {
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if (!enabled) return;
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if (matchesShortcut(event, shortcut)) {
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if (preventDefault) {
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event.preventDefault();
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}
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if (stopPropagation) {
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event.stopPropagation();
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}
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callbackRef.current(event);
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}
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},
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[enabled, preventDefault, stopPropagation, shortcut]
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);
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useEffect(() => {
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if (!enabled || !target) return;
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target.addEventListener('keydown', handleKeyDown as EventListener);
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return () => {
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target.removeEventListener('keydown', handleKeyDown as EventListener);
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};
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}, [enabled, target, handleKeyDown]);
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}
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/**
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* Hook for handling keyboard shortcuts on a specific element (e.g., textarea)
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* Returns a handler to attach to onKeyDown
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*
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* @example
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* ```tsx
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* const handleKeyDown = useKeyboardShortcutHandler(SHORTCUTS.SUBMIT, handleSubmit);
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*
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* return <textarea onKeyDown={handleKeyDown} />;
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* ```
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*/
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export function useKeyboardShortcutHandler(
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shortcut: KeyboardShortcut,
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callback: (event: React.KeyboardEvent) => void,
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options: Omit<KeyboardShortcutOptions, 'target'> = {}
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) {
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const {
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enabled = true,
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preventDefault = true,
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stopPropagation = false,
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} = options;
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// Use ref to avoid recreating the handler on every render
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const callbackRef = useRef(callback);
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// Update ref in useEffect to avoid updating during render
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useEffect(() => {
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callbackRef.current = callback;
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}, [callback]);
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return useCallback(
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(event: React.KeyboardEvent) => {
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if (!enabled) return;
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if (matchesShortcut(event, shortcut)) {
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if (preventDefault) {
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event.preventDefault();
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}
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if (stopPropagation) {
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event.stopPropagation();
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}
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callbackRef.current(event);
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}
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},
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[enabled, preventDefault, stopPropagation, shortcut]
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);
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}
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