content: // Licensed under the Apache License, Version 2.0 (the "License"); you may not
  // use this file except in compliance with the License. You may obtain a copy of
  // the License at
  //
  //   http://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing, software
  // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  // License for the specific language governing permissions and limitations under
  // the License.
  
  import PropTypes from 'prop-types';
  import React from 'react';
  import { connect } from 'react-redux';
  import { showNotificationCenter } from '../actions';
  
  class ShowPanelButton extends React.Component {
  
    static propTypes = {
      onClick: PropTypes.func.isRequired,
      visible: PropTypes.bool.isRequired
    };
  
    render() {
      const classes = 'fonticon fonticon-bell' + ((!this.props.visible) ? ' hide' : '');
      return (
        <div className={classes} onClick={this.props.onClick}></div>
      );
    }
  }
  
  const mapStateToProps = ({ notifications }) => {
    return {
      visible: !notifications.notificationCenterVisible
    };
  };
  
  const mapDispatchToProps = (dispatch) => {
    return {
      onClick: () => {
        dispatch(showNotificationCenter());
      }
    };
  };
  
  const NotificationCenterButton = connect(
    mapStateToProps,
    mapDispatchToProps
  )(ShowPanelButton);
  
  export default NotificationCenterButton;
  
  
  
  