b6c827a908
* Add custom popup * Render popup window with react portal * Handle scroll * Handle pointer scroll * Refactor types * Add useOutsideClick * Restore button styles * Update types * Add tests * Set multiple refs * Cleanup * Cleanup * Move offset const to the utils * Add useCallback in useScroll * Remove empty lines in useElementPosition * Change styled components to functional * Make sure popup window stays in view * Highlight trigger button when popup is open * Add uesPopupWindow hook * Make triangle larger * Use full trigger height * Apply new lint rules Co-authored-by: Jaco Greeff <jacogr@gmail.com>
24 lines
604 B
TypeScript
24 lines
604 B
TypeScript
// Copyright 2017-2021 @polkadot/react-hooks authors & contributors
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// SPDX-License-Identifier: Apache-2.0
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import { useCallback, useEffect, useState } from 'react';
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export function useScroll (): number {
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const [scrollY, setScrollY] = useState(window.pageYOffset);
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const setYOffset = useCallback((): void => setScrollY(window.pageYOffset), []);
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useEffect(() => {
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function watchScroll () {
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window.addEventListener('scroll', setYOffset);
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}
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watchScroll();
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return () => {
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window.removeEventListener('scroll', setYOffset);
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};
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}, [setYOffset]);
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return scrollY;
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}
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