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New components, convert hooks to components, bug fixes.

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This commit is contained in:
Mike Cao 2020-08-03 23:20:35 -07:00
parent a2db27894f
commit 9d8a2406e1
21 changed files with 330 additions and 181 deletions
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19
components/CheckVisible.js
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@ -1,13 +1,16 @@
import React, { useState, useRef, useEffect } from 'react';
function isInViewport(node) {
return (
window.pageYOffset < node.offsetTop + node.clientHeight ||
window.pageXOffset < node.offsetLeft + node.clientWidth
function isInViewport(element) {
const rect = element.getBoundingClientRect();
return !(
rect.bottom < 0 ||
rect.right < 0 ||
rect.left > window.innerWidth ||
rect.top > window.innerHeight
);
}
export default function CheckVisible({ children }) {
export default function CheckVisible({ className, children }) {
const [visible, setVisible] = useState(false);
const ref = useRef();
@ -30,5 +33,9 @@ export default function CheckVisible({ children }) {
};
}, [visible]);
return <div ref={ref}>{typeof children === 'function' ? children(visible) : children}</div>;
return (
<div ref={ref} className={className} data-visible={visible}>
{typeof children === 'function' ? children(visible) : children}
</div>
);
}