glitchier-soc/app/javascript/mastodon/features/ui/components/upload_area.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

55 lines
1.6 KiB
JavaScript

import React from 'react';
import PropTypes from 'prop-types';
import Motion from 'react-motion/lib/Motion';
import spring from 'react-motion/lib/spring';
import { FormattedMessage } from 'react-intl';
class UploadArea extends React.PureComponent {
static propTypes = {
active: PropTypes.bool,
onClose: PropTypes.func
};
handleKeyUp = (e) => {
e.preventDefault();
e.stopPropagation();
const keyCode = e.keyCode
if (this.props.active) {
switch(keyCode) {
case 27:
this.props.onClose();
break;
}
}
}
componentDidMount () {
window.addEventListener('keyup', this.handleKeyUp, false);
}
componentWillUnmount () {
window.removeEventListener('keyup', this.handleKeyUp);
}
render () {
const { active } = this.props;
return (
<Motion defaultStyle={{ backgroundOpacity: 0, backgroundScale: 0.95 }} style={{ backgroundOpacity: spring(active ? 1 : 0, { stiffness: 150, damping: 15 }), backgroundScale: spring(active ? 1 : 0.95, { stiffness: 200, damping: 3 }) }}>
{({ backgroundOpacity, backgroundScale }) =>
<div className='upload-area' style={{ visibility: active ? 'visible' : 'hidden', opacity: backgroundOpacity }}>
<div className='upload-area__drop'>
<div className='upload-area__background' style={{ transform: `translateZ(0) scale(${backgroundScale})` }} />
<div className='upload-area__content'><FormattedMessage id='upload_area.title' defaultMessage='Drag & drop to upload' /></div>
</div>
</div>
}
</Motion>
);
}
}
export default UploadArea;