33 lines
1.4 KiB
TypeScript
33 lines
1.4 KiB
TypeScript
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import { useEffect, type RefObject } from "react";
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/** While `active`, close (call `onClose`) on Escape or a mousedown outside ALL of the given
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* element(s). The reusable half of the popover/dropdown pattern that several components each
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* hand-rolled; positioning stays with the caller (it varies per popover). Pass the panel ref
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* (and optionally a trigger ref so clicking the trigger doesn't immediately re-close). */
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export function useDismiss(
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active: boolean,
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onClose: () => void,
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refs: RefObject<HTMLElement | null> | RefObject<HTMLElement | null>[],
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): void {
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useEffect(() => {
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if (!active) return;
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const list = Array.isArray(refs) ? refs : [refs];
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const onDown = (e: MouseEvent) => {
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const target = e.target as Node;
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if (!list.some((r) => r.current?.contains(target))) onClose();
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};
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const onKey = (e: KeyboardEvent) => {
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if (e.key === "Escape") onClose();
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};
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document.addEventListener("mousedown", onDown);
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document.addEventListener("keydown", onKey);
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return () => {
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document.removeEventListener("mousedown", onDown);
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document.removeEventListener("keydown", onKey);
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};
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// Matches the original effects: (re)subscribe only when open/closed toggles. Refs are
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// stable and onClose is read fresh from this run's closure.
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// eslint-disable-next-line react-hooks/exhaustive-deps
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}, [active]);
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}
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