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import React from 'react';
import Motion from 'react-motion/lib/Motion';
import spring from 'react-motion/lib/spring';
import PropTypes from 'prop-types';
export default class IconButton extends React.PureComponent {
static propTypes = {
className: PropTypes.string,
title: PropTypes.string.isRequired,
icon: PropTypes.string.isRequired,
onClick: PropTypes.func,
size: PropTypes.number,
active: PropTypes.bool,
pressed: PropTypes.bool,
expanded: PropTypes.bool,
style: PropTypes.object,
activeStyle: PropTypes.object,
disabled: PropTypes.bool,
inverted: PropTypes.bool,
animate: PropTypes.bool,
flip: PropTypes.bool,
overlay: PropTypes.bool,
tabIndex: PropTypes.string,
};
static defaultProps = {
size: 18,
active: false,
disabled: false,
animate: false,
overlay: false,
tabIndex: '0',
};
handleClick = (e) => {
e.preventDefault();
if (!this.props.disabled) {
this.props.onClick(e);
}
}
render () {
const style = {
fontSize: `${this.props.size}px`,
width: `${this.props.size * 1.28571429}px`,
height: `${this.props.size * 1.28571429}px`,
lineHeight: `${this.props.size}px`,
...this.props.style,
...(this.props.active ? this.props.activeStyle : {}),
};
const classes = ['icon-button'];
if (this.props.active) {
classes.push('active');
}
if (this.props.disabled) {
classes.push('disabled');
}
if (this.props.inverted) {
classes.push('inverted');
}
if (this.props.overlay) {
classes.push('overlayed');
}
if (this.props.className) {
classes.push(this.props.className);
}
const flipDeg = this.props.flip ? -180 : -360;
const rotateDeg = this.props.active ? flipDeg : 0;
const motionDefaultStyle = {
rotate: rotateDeg,
};
const springOpts = {
stiffness: this.props.flip ? 60 : 120,
damping: 7,
};
const motionStyle = {
rotate: this.props.animate ? spring(rotateDeg, springOpts) : 0,
};
return (
<Motion defaultStyle={motionDefaultStyle} style={motionStyle}>
{({ rotate }) =>
<button
aria-label={this.props.title}
aria-pressed={this.props.pressed}
aria-expanded={this.props.expanded}
title={this.props.title}
className={classes.join(' ')}
onClick={this.handleClick}
style={style}
tabIndex={this.props.tabIndex}
>
<i style={{ transform: `rotate(${rotate}deg)` }} className={`fa fa-fw fa-${this.props.icon}`} aria-hidden='true' />
</button>
}
</Motion>
);
}
}