Files
outline/app/components/Subheading.tsx
Tom Moor 15b1069bcc chore: Move to Typescript (#2783)
This PR moves the entire project to Typescript. Due to the ~1000 ignores this will lead to a messy codebase for a while, but the churn is worth it – all of those ignore comments are places that were never type-safe previously.

closes #1282
2021-11-29 06:40:55 -08:00

50 lines
1.3 KiB
TypeScript

import * as React from "react";
import styled from "styled-components";
type Props = {
children: React.ReactNode;
sticky?: boolean;
};
const H3 = styled.h3`
border-bottom: 1px solid ${(props) => props.theme.divider};
margin: 12px 0;
line-height: 1;
`;
const Underline = styled.div`
margin-top: -1px;
display: inline-block;
font-weight: 500;
font-size: 14px;
line-height: 1.5;
color: ${(props) => props.theme.textSecondary};
border-bottom: 3px solid ${(props) => props.theme.textSecondary};
padding-top: 6px;
padding-bottom: 4px;
`;
// When sticky we need extra background coverage around the sides otherwise
// items that scroll past can "stick out" the sides of the heading
const Background = styled.div<{ sticky?: boolean }>`
position: ${(props) => (props.sticky ? "sticky" : "relative")};
${(props) => (props.sticky ? "top: 54px;" : "")}
margin: 0 -8px;
padding: 0 8px;
background: ${(props) => props.theme.background};
transition: ${(props) => props.theme.backgroundTransition};
z-index: 1;
`;
const Subheading = ({ children, sticky, ...rest }: Props) => {
return (
<Background sticky={sticky}>
<H3 {...rest}>
<Underline>{children}</Underline>
</H3>
</Background>
);
};
export default Subheading;