1 |
|
2 |
|
3 |
|
4 |
|
5 |
|
6 |
|
7 |
|
8 |
|
9 |
|
10 |
|
11 |
|
12 |
|
13 | import {useCallback, useEffect, useRef} from 'react';
|
14 |
|
15 | interface GlobalListeners {
|
16 | addGlobalListener<K extends keyof WindowEventMap>(el: Window, type: K, listener: (this: Document, ev: WindowEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void,
|
17 | addGlobalListener<K extends keyof DocumentEventMap>(el: EventTarget, type: K, listener: (this: Document, ev: DocumentEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void,
|
18 | addGlobalListener(el: EventTarget, type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void,
|
19 | removeGlobalListener<K extends keyof DocumentEventMap>(el: EventTarget, type: K, listener: (this: Document, ev: DocumentEventMap[K]) => any, options?: boolean | EventListenerOptions): void,
|
20 | removeGlobalListener(el: EventTarget, type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void,
|
21 | removeAllGlobalListeners(): void
|
22 | }
|
23 |
|
24 | export function useGlobalListeners(): GlobalListeners {
|
25 | let globalListeners = useRef(new Map());
|
26 | let addGlobalListener = useCallback((eventTarget, type, listener, options) => {
|
27 |
|
28 | let fn = options?.once ? (...args) => {
|
29 | globalListeners.current.delete(listener);
|
30 | listener(...args);
|
31 | } : listener;
|
32 | globalListeners.current.set(listener, {type, eventTarget, fn, options});
|
33 | eventTarget.addEventListener(type, fn, options);
|
34 | }, []);
|
35 | let removeGlobalListener = useCallback((eventTarget, type, listener, options) => {
|
36 | let fn = globalListeners.current.get(listener)?.fn || listener;
|
37 | eventTarget.removeEventListener(type, fn, options);
|
38 | globalListeners.current.delete(listener);
|
39 | }, []);
|
40 | let removeAllGlobalListeners = useCallback(() => {
|
41 | globalListeners.current.forEach((value, key) => {
|
42 | removeGlobalListener(value.eventTarget, value.type, key, value.options);
|
43 | });
|
44 | }, [removeGlobalListener]);
|
45 |
|
46 |
|
47 | useEffect(() => {
|
48 | return removeAllGlobalListeners;
|
49 | }, [removeAllGlobalListeners]);
|
50 |
|
51 | return {addGlobalListener, removeGlobalListener, removeAllGlobalListeners};
|
52 | }
|
53 |
|
\ | No newline at end of file |