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@carbon/ibm-products

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/** * Copyright IBM Corp. 2020, 2026 * * This source code is licensed under the Apache-2.0 license found in the * LICENSE file in the root directory of this source tree. */ import { pkg } from "../../settings.js"; import { useIsomorphicEffect } from "../../global/js/hooks/useIsomorphicEffect.js"; import { useCallback, useState } from "react"; //#region src/components/Tearsheet/usePresence.ts /** * Copyright IBM Corp. 2025 * * This source code is licensed under the Apache-2.0 license found in the * LICENSE file in the root directory of this source tree. */ const usePresence = (ref, isOpen) => { const [exitState, setExitState] = useState(isOpen ? "idle" : "finished"); const isExiting = exitState === "active"; if (!isOpen && exitState === "idle") setExitState("active"); if (isOpen && exitState !== "idle") setExitState("idle"); const handleAnimationEnd = useCallback(() => { setExitState("finished"); }, []); useIsomorphicEffect(() => { if (!ref.current || !isExiting) return; if (!("getAnimations" in ref.current)) { handleAnimationEnd(); return; } const animations = ref.current.getAnimations({ subtree: true }).filter((animation) => animation instanceof CSSAnimation && animation.animationName.startsWith(`${pkg.prefix}`)); if (!animations.length) { handleAnimationEnd(); return; } let cancelled = false; Promise.all(animations.map((animation) => animation.finished)).finally(() => { if (cancelled) return; handleAnimationEnd(); }); return () => { cancelled = true; }; }, [ ref, isExiting, handleAnimationEnd ]); return { /** * Indicates whether the ref object is supposed to be mounted */ isPresent: isOpen || exitState !== "finished", /** * Indicates whether the ref object is currently exiting */ isExiting }; }; //#endregion export { usePresence };