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SimpleGrow.js
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SimpleGrow.js
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import React from 'react';
import PropTypes from 'prop-types';
import { withStyles } from '@material-ui/core/styles';
import Switch from '@material-ui/core/Switch';
import Paper from '@material-ui/core/Paper';
import Grow from '@material-ui/core/Grow';
const styles = theme => ({
root: {
height: 180,
},
container: {
display: 'flex',
},
paper: {
margin: theme.spacing.unit,
},
svg: {
width: 100,
height: 100,
},
polygon: {
fill: theme.palette.common.white,
stroke: theme.palette.divider,
strokeWidth: 1,
},
});
class SimpleGrow extends React.Component {
state = {
checked: false,
};
handleChange = () => {
this.setState(state => ({ checked: !state.checked }));
};
render() {
const { classes } = this.props;
const { checked } = this.state;
const polygon = (
<Paper elevation={4} className={classes.paper}>
<svg className={classes.svg}>
<polygon points="0,100 50,00, 100,100" className={classes.polygon} />
</svg>
</Paper>
);
return (
<div className={classes.root}>
<Switch checked={checked} onChange={this.handleChange} aria-label="Collapse" />
<div className={classes.container}>
<Grow in={checked}>{polygon}</Grow>
{/* Conditionally applies the timeout property to change the entry speed. */}
<Grow
in={checked}
style={{ transformOrigin: '0 0 0' }}
{...(checked ? { timeout: 1000 } : {})}
>
{polygon}
</Grow>
</div>
</div>
);
}
}
SimpleGrow.propTypes = {
classes: PropTypes.object.isRequired,
};
export default withStyles(styles)(SimpleGrow);