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import * as React from 'react';
import { Link as ScrollLink } from 'react-scroll';
import styled from 'styled-components';
import { HeaderSizes, Styles } from '../types';
import { colors } from '../utils/colors';
import { constants } from '../utils/constants';
const headerSizeToScrollOffset: { [headerSize: string]: number } = {
h2: -20,
h3: 0,
};
export interface AnchorTitleProps {
title: string | React.ReactNode;
id: string;
headerSize: HeaderSizes;
shouldShowAnchor: boolean;
isDisabled: boolean;
}
export interface AnchorTitleState {}
const styles: Styles = {
h1: {
fontSize: '1.875em',
},
h2: {
fontSize: '1.5em',
fontWeight: 400,
},
h3: {
fontSize: '1.17em',
},
};
interface AnchorIconProps {
shouldShowAnchor: boolean;
}
const AnchorIcon =
styled.i <
AnchorIconProps >
`
opacity: ${props => (props.shouldShowAnchor ? 1 : 0)};
&:hover {
opacity: ${props => (props.shouldShowAnchor ? 0.6 : 0)};
}
font-size: 20px;
transform: rotate(45deg);
cursor: pointer;
`;
export class AnchorTitle extends React.Component<AnchorTitleProps, AnchorTitleState> {
public static defaultProps: Partial<AnchorTitleProps> = {
isDisabled: false,
};
public render(): React.ReactNode {
return (
<div
className="relative flex"
style={
{
...styles[this.props.headerSize],
fontWeight: 'bold',
display: 'block',
WebkitMarginStart: 0,
WebkitMarginEnd: 0,
} as any
}
>
<div className="inline-block" style={{ paddingRight: 4, color: colors.darkestGrey }}>
{this.props.title}
</div>
{!this.props.isDisabled && (
<ScrollLink
to={this.props.id}
hashSpy={true}
offset={headerSizeToScrollOffset[this.props.headerSize]}
duration={constants.DOCS_SCROLL_DURATION_MS}
containerId={constants.SCROLL_CONTAINER_ID}
>
<AnchorIcon className="zmdi zmdi-link" shouldShowAnchor={this.props.shouldShowAnchor} />
</ScrollLink>
)}
</div>
);
}
}
|
