Files
phosphor-icons/src/components/IconGrid/IconGridItem.tsx
2020-07-24 14:40:07 -04:00

131 lines
3.5 KiB
TypeScript

import React, {
useRef,
useLayoutEffect,
useEffect,
MutableRefObject,
} from "react";
import { useRecoilState } from "recoil";
import { motion, AnimatePresence } from "framer-motion";
import { iconPreviewOpenAtom } from "../../state/atoms";
import { IconProps, Icon } from "phosphor-react";
interface IconGridItemProps extends IconProps {
index: number;
name: string;
Icon: Icon;
originOffset: MutableRefObject<{ top: number; left: number }>;
spans: number;
}
const itemVariants = {
hidden: { opacity: 0 },
visible: (delayRef: any) => ({
opacity: 1,
transition: { delay: delayRef.current },
}),
};
const whileHover = { boxShadow: "0 0 0 2px rgb(0, 0, 0)" };
const whileTap = { boxShadow: "0 0 0 4px rgb(139, 0, 139)" };
const transition = { duration: 0.2 };
const originIndex = 0;
const delayPerPixel = 0.0004;
const infoVariants = {
open: { opacity: 1, height: 176, marginTop: 4, marginBottom: 4, padding: 16 },
collapsed: {
opacity: 0,
height: 0,
marginTop: 0,
marginBottom: 0,
padding: 0,
},
};
const IconGridItem: React.FC<IconGridItemProps> = (props) => {
const { index, spans, originOffset, name, Icon, ...iconProps } = props;
const [open, setOpen] = useRecoilState(iconPreviewOpenAtom);
const delayRef = useRef<number>(0);
const offset = useRef({ top: 0, left: 0 });
const ref = useRef<any>();
// The measurement for all elements happens in the layoutEffect cycle
// This ensures that when we calculate distance in the effect cycle
// all elements have already been measured
useLayoutEffect(() => {
const element = ref.current;
if (!element) return;
offset.current = {
top: element.offsetTop,
left: element.offsetLeft,
};
if (index === originIndex) {
originOffset.current = offset.current;
}
}, []);
useEffect(() => {
const dx = Math.abs(offset.current.left - originOffset.current.left);
const dy = Math.abs(offset.current.top - originOffset.current.top);
const d = Math.sqrt(Math.pow(dx, 2) + Math.pow(dy, 2));
delayRef.current = d * delayPerPixel;
}, []);
return (
<>
<motion.div
className="grid-item"
ref={ref}
style={{ order: index }}
custom={delayRef}
key={name}
whileHover={whileHover}
whileTap={whileTap}
transition={transition}
variants={itemVariants}
onClick={() =>
setOpen((openName) => (name === openName ? false : name))
}
>
<Icon {...iconProps} />
<p>{name}</p>
</motion.div>
<AnimatePresence initial={false}>
{open === name && <InfoPanel {...props} />}
</AnimatePresence>
</>
);
};
const InfoPanel: React.FC<IconGridItemProps> = (props) => {
const { index, spans, name, Icon, color, weight } = props;
return (
<motion.section
className="info-box"
animate="open"
exit="collapsed"
variants={infoVariants}
style={{ order: index + (spans - (index % spans)) }}
>
<div style={{ height: "100%" }}>
<Icon color={color} weight={weight} size={128} />
<p>{name}</p>
</div>
<div style={{ flex: 1, padding: 32 }}>
HTML
<pre>{`<i class="ph-${name}${
weight === "regular" ? "" : `-${weight}`
}"></i>`}</pre>
React
<pre>{`<${Icon.displayName} ${
weight === "regular" ? "" : `weight="${weight}"`
}/>`}</pre>
</div>
</motion.section>
);
};
export default IconGridItem;