Zoe Roux f834e08273 Create a homemade skeleton
with moti and css animations
2022-12-11 21:54:39 +09:00

113 lines
2.8 KiB
TypeScript

/*
* Kyoo - A portable and vast media library solution.
* Copyright (c) Kyoo.
*
* See AUTHORS.md and LICENSE file in the project root for full license information.
*
* Kyoo is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* Kyoo is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Kyoo. If not, see <https://www.gnu.org/licenses/>.
*/
import { LinearGradient as LG } from "expo-linear-gradient";
import { motify } from "moti";
import { useState } from "react";
import { Platform, View, ViewProps } from "react-native";
import { px, rem, useYoshiki, percent } from "yoshiki/native";
const LinearGradient = motify(LG)();
export const SkeletonCss = () => (
<style jsx global>{`
@keyframes skeleton {
0% {
transform: translateX(-100%);
}
50% {
transform: translateX(100%);
}
100% {
transform: translateX(100%);
}
}
`}</style>
);
export const Skeleton = ({
children,
variant = "text",
...props
}: Omit<ViewProps, "children"> & {
children?: JSX.Element | boolean | null;
variant?: "text" | "round" | "custom";
}) => {
const { css, theme } = useYoshiki();
const [width, setWidth] = useState<number | undefined>(undefined);
const perc = (v: number) => (v / 100) * width!;
if (children && children !== true) return children;
return (
<View
onLayout={(e) => setWidth(e.nativeEvent.layout.width)}
{...css(
[
{
bg: (theme) => theme.overlay0,
margin: px(2),
position: "relative",
overflow: "hidden",
borderRadius: px(6),
},
variant === "text" && {
width: percent(75),
height: rem(1.2),
},
variant === "round" && {
borderRadius: 9999999,
},
],
props,
)}
>
<LinearGradient
start={{ x: 0, y: 0.5 }}
end={{ x: 1, y: 0.5 }}
colors={["transparent", theme.overlay1, "transparent"]}
transition={{
loop: true,
repeatReverse: false,
}}
animate={{
translateX: width
? [perc(-100), { value: perc(100), type: "timing", duration: 800, delay: 800 }]
: undefined,
}}
{...css([
{
position: "absolute",
top: 0,
bottom: 0,
left: 0,
right: 0,
},
Platform.OS === "web" && {
// @ts-ignore Web only properties
animation: "skeleton 1.6s linear 0.5s infinite",
transform: "translateX(-100%)",
},
])}
/>
</View>
);
};