449dc55aaa
* chore: Upgrade Prettier 1.8 -> 2.0 * chore: Upgrade Babel 6 -> 7 * chore: Upgrade eslint plugins * chore: Add eslint import/order rules * chore: Update flow-typed deps
40 lines
909 B
JavaScript
40 lines
909 B
JavaScript
// @flow
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import { observable } from "mobx";
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import { observer } from "mobx-react";
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import * as React from "react";
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import styled from "styled-components";
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type Props = {
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shadow?: boolean,
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};
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@observer
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class Scrollable extends React.Component<Props> {
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@observable shadow: boolean = false;
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handleScroll = (ev: SyntheticMouseEvent<HTMLDivElement>) => {
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this.shadow = !!(this.props.shadow && ev.currentTarget.scrollTop > 0);
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};
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render() {
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const { shadow, ...rest } = this.props;
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return (
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<Wrapper onScroll={this.handleScroll} shadow={this.shadow} {...rest} />
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);
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}
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}
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const Wrapper = styled.div`
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height: 100%;
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overflow-y: auto;
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overflow-x: hidden;
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overscroll-behavior: none;
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-webkit-overflow-scrolling: touch;
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box-shadow: ${(props) =>
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props.shadow ? "0 1px inset rgba(0,0,0,.1)" : "none"};
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transition: all 250ms ease-in-out;
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`;
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export default Scrollable;
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