100 lines
1.9 KiB
TypeScript
100 lines
1.9 KiB
TypeScript
// Copyright 2017-2019 @polkadot/ui-app authors & contributors
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// This software may be modified and distributed under the terms
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// of the Apache-2.0 license. See the LICENSE file for details.
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import { BareProps } from './types';
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import React from 'react';
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import ReactMd from 'react-markdown';
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import styled from 'styled-components';
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import Icon from './Icon';
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type Props = BareProps & {
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md: string
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};
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type State = {
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isVisible: boolean
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};
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const Wrapper = styled.div`
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.help-button {
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cursor: pointer;
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font-size: 2rem;
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padding: 1.25rem 1.5rem 0 0;
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}
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> .help-button {
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position: absolute;
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right: 0rem;
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top: 0rem;
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}
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.help-slideout {
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background: #eee;
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border-left: 0.25rem solid #ddd;
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bottom: 0;
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max-width: 50rem;
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overflow-y: scroll;
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position: fixed;
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right: -50rem;
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top: 0;
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transition-property: all;
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transition-duration: .5s;
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z-index: 10;
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.help-button {
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text-align: right;
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}
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.help-content {
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padding: 1rem 1.5rem 5rem;
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}
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&.open {
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right: 0;
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}
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}
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`;
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export default class HelpOverlay extends React.PureComponent<Props, State> {
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state: State = { isVisible: false };
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render () {
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const { md } = this.props;
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const { isVisible } = this.state;
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return (
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<Wrapper>
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{this.renderButton('help circle')}
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<div className={`help-slideout ${isVisible ? 'open' : 'closed'}`}>
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{this.renderButton('close')}
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<ReactMd
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className='help-content'
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escapeHtml={false}
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source={md}
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/>
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</div>
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</Wrapper>
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);
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}
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private renderButton (name: 'close' | 'help circle') {
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return (
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<div className='help-button'>
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<Icon
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name={name}
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onClick={this.toggleVisible}
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/>
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</div>
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);
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}
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private toggleVisible = () => {
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this.setState(({ isVisible }) => ({
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isVisible: !isVisible
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}));
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}
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}
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