masto-fe/app/javascript/mastodon/components/column_collapsable.js
Sorin Davidoi 2c405aed55 Performance improvements (#3168)
* refactor(components/status_list): Avoid quering scrollTop if not necessary

* refactor(components/dropdown_menu): Do not render items if not expanded

* refactor: Cherry-pick react-motion imports

* refactor(compose/privacy_dropdown): Do not render options if not open

* refactor(components/column_collapsable): Do not render children if collapsed
2017-05-20 14:58:13 +02:00

46 lines
1.2 KiB
JavaScript

import React from 'react';
import PropTypes from 'prop-types';
class ColumnCollapsable extends React.PureComponent {
static propTypes = {
icon: PropTypes.string.isRequired,
title: PropTypes.string,
fullHeight: PropTypes.number.isRequired,
children: PropTypes.node,
onCollapse: PropTypes.func
};
state = {
collapsed: true
};
handleToggleCollapsed = () => {
const currentState = this.state.collapsed;
this.setState({ collapsed: !currentState });
if (!currentState && this.props.onCollapse) {
this.props.onCollapse();
}
}
render () {
const { icon, title, fullHeight, children } = this.props;
const { collapsed } = this.state;
return (
<div className={`column-collapsable ${collapsed ? 'collapsed' : ''}`}>
<div role='button' tabIndex='0' title={`${title}`} className='column-collapsable__button column-icon' onClick={this.handleToggleCollapsed}>
<i className={`fa fa-${icon}`} />
</div>
<div className='column-collapsable__content' style={{ height: `${fullHeight}px` }}>
{!collapsed && children}
</div>
</div>
);
}
}
export default ColumnCollapsable;