95 lines
2.6 KiB
TypeScript
95 lines
2.6 KiB
TypeScript
import * as React from 'react';
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import {Link as ScrollLink} from 'react-scroll';
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import {HeaderSizes, Styles} from 'ts/types';
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import {constants} from 'ts/utils/constants';
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import {utils} from 'ts/utils/utils';
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const headerSizeToScrollOffset: {[headerSize: string]: number} = {
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h2: -20,
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h3: 0,
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};
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interface AnchorTitleProps {
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title: string|React.ReactNode;
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id: string;
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headerSize: HeaderSizes;
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shouldShowAnchor: boolean;
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}
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interface AnchorTitleState {
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isHovering: boolean;
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}
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const styles: Styles = {
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anchor: {
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fontSize: 20,
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transform: 'rotate(45deg)',
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cursor: 'pointer',
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},
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headers: {
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WebkitMarginStart: 0,
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WebkitMarginEnd: 0,
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fontWeight: 'bold',
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display: 'block',
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},
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h1: {
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fontSize: '1.8em',
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WebkitMarginBefore: '0.83em',
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WebkitMarginAfter: '0.83em',
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},
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h2: {
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fontSize: '1.5em',
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WebkitMarginBefore: '0.83em',
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WebkitMarginAfter: '0.83em',
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},
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h3: {
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fontSize: '1.17em',
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WebkitMarginBefore: '1em',
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WebkitMarginAfter: '1em',
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},
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};
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export class AnchorTitle extends React.Component<AnchorTitleProps, AnchorTitleState> {
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constructor(props: AnchorTitleProps) {
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super(props);
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this.state = {
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isHovering: false,
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};
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}
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public render() {
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let opacity = 0;
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if (this.props.shouldShowAnchor) {
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opacity = this.state.isHovering ? 0.6 : 1;
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}
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return (
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<div className="relative flex" style={{...styles[this.props.headerSize], ...styles.headers}}>
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<div
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className="inline-block"
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style={{paddingRight: 4}}
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>
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{this.props.title}
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</div>
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<ScrollLink
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to={this.props.id}
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offset={headerSizeToScrollOffset[this.props.headerSize]}
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duration={constants.DOCS_SCROLL_DURATION_MS}
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containerId={constants.DOCS_CONTAINER_ID}
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>
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<i
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className="zmdi zmdi-link"
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onClick={utils.setUrlHash.bind(utils, this.props.id)}
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style={{...styles.anchor, opacity}}
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onMouseOver={this.setHoverState.bind(this, true)}
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onMouseOut={this.setHoverState.bind(this, false)}
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/>
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</ScrollLink>
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</div>
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);
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}
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private setHoverState(isHovering: boolean) {
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this.setState({
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isHovering,
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});
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}
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}
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