content: import React from 'react';
  import ImmutablePropTypes from 'react-immutable-proptypes';
  import PropTypes from 'prop-types';
  import Motion from '../../ui/util/optional_motion';
  import spring from 'react-motion/lib/spring';
  import ImmutablePureComponent from 'react-immutable-pure-component';
  import { FormattedMessage } from 'react-intl';
  import classNames from 'classnames';
  import Icon from 'mastodon/components/icon';
  
  export default class Upload extends ImmutablePureComponent {
  
    static contextTypes = {
      router: PropTypes.object,
    };
  
    static propTypes = {
      media: ImmutablePropTypes.map.isRequired,
      onUndo: PropTypes.func.isRequired,
      onOpenFocalPoint: PropTypes.func.isRequired,
    };
  
    handleUndoClick = e => {
      e.stopPropagation();
      this.props.onUndo(this.props.media.get('id'));
    }
  
    handleFocalPointClick = e => {
      e.stopPropagation();
      this.props.onOpenFocalPoint(this.props.media.get('id'));
    }
  
    render () {
      const { media } = this.props;
      const focusX = media.getIn(['meta', 'focus', 'x']);
      const focusY = media.getIn(['meta', 'focus', 'y']);
      const x = ((focusX /  2) + .5) * 100;
      const y = ((focusY / -2) + .5) * 100;
  
      return (
        <div className='compose-form__upload' tabIndex='0' role='button'>
          <Motion defaultStyle={{ scale: 0.8 }} style={{ scale: spring(1, { stiffness: 180, damping: 12 }) }}>
            {({ scale }) => (
              <div className='compose-form__upload-thumbnail' style={{ transform: `scale(${scale})`, backgroundImage: `url(${media.get('preview_url')})`, backgroundPosition: `${x}% ${y}%` }}>
                <div className={classNames('compose-form__upload__actions', { active: true })}>
                  <button className='icon-button' onClick={this.handleUndoClick}><Icon id='times' /> <FormattedMessage id='upload_form.undo' defaultMessage='Delete' /></button>
                  <button className='icon-button' onClick={this.handleFocalPointClick}><Icon id='pencil' /> <FormattedMessage id='upload_form.edit' defaultMessage='Edit' /></button>
                </div>
              </div>
            )}
          </Motion>
        </div>
      );
    }
  
  }
  