88 lines
2.4 KiB
TypeScript
88 lines
2.4 KiB
TypeScript
import * as React from 'react';
|
|
import { Link as ScrollLink } from 'react-scroll';
|
|
|
|
import { HeaderSizes, Styles } from '../types';
|
|
import { constants } from '../utils/constants';
|
|
import { utils } from '../utils/utils';
|
|
|
|
const headerSizeToScrollOffset: { [headerSize: string]: number } = {
|
|
h2: -20,
|
|
h3: 0,
|
|
};
|
|
|
|
export interface AnchorTitleProps {
|
|
title: string | React.ReactNode;
|
|
id: string;
|
|
headerSize: HeaderSizes;
|
|
shouldShowAnchor: boolean;
|
|
}
|
|
|
|
export interface AnchorTitleState {
|
|
isHovering: boolean;
|
|
}
|
|
|
|
const styles: Styles = {
|
|
anchor: {
|
|
fontSize: 20,
|
|
transform: 'rotate(45deg)',
|
|
cursor: 'pointer',
|
|
},
|
|
headers: {
|
|
WebkitMarginStart: 0,
|
|
WebkitMarginEnd: 0,
|
|
fontWeight: 'bold',
|
|
display: 'block',
|
|
},
|
|
h1: {
|
|
fontSize: '1.8em',
|
|
},
|
|
h2: {
|
|
fontSize: '1.5em',
|
|
fontWeight: 400,
|
|
},
|
|
h3: {
|
|
fontSize: '1.17em',
|
|
},
|
|
};
|
|
|
|
export class AnchorTitle extends React.Component<AnchorTitleProps, AnchorTitleState> {
|
|
constructor(props: AnchorTitleProps) {
|
|
super(props);
|
|
this.state = {
|
|
isHovering: false,
|
|
};
|
|
}
|
|
public render() {
|
|
let opacity = 0;
|
|
if (this.props.shouldShowAnchor) {
|
|
opacity = this.state.isHovering ? 0.6 : 1;
|
|
}
|
|
return (
|
|
<div className="relative flex" style={{ ...styles[this.props.headerSize], ...styles.headers }}>
|
|
<div className="inline-block" style={{ paddingRight: 4 }}>
|
|
{this.props.title}
|
|
</div>
|
|
<ScrollLink
|
|
to={this.props.id}
|
|
offset={headerSizeToScrollOffset[this.props.headerSize]}
|
|
duration={constants.DOCS_SCROLL_DURATION_MS}
|
|
containerId={constants.DOCS_CONTAINER_ID}
|
|
>
|
|
<i
|
|
className="zmdi zmdi-link"
|
|
onClick={utils.setUrlHash.bind(utils, this.props.id)}
|
|
style={{ ...styles.anchor, opacity }}
|
|
onMouseOver={this._setHoverState.bind(this, true)}
|
|
onMouseOut={this._setHoverState.bind(this, false)}
|
|
/>
|
|
</ScrollLink>
|
|
</div>
|
|
);
|
|
}
|
|
private _setHoverState(isHovering: boolean) {
|
|
this.setState({
|
|
isHovering,
|
|
});
|
|
}
|
|
}
|