seahub/frontend/src/components/dialog/sysadmin-dialog/update-user.js

import React from 'react';
import PropTypes from 'prop-types';
import { Alert, Modal, ModalHeader, ModalBody, ModalFooter, Button, Form, FormGroup, Input, InputGroup, InputGroupAddon, InputGroupText } from 'reactstrap';
import { gettext } from '../../../utils/constants';
import { Utils } from '../../../utils/utils';

const propTypes = {
  dialogTitle: PropTypes.string.isRequired,
  updateValue: PropTypes.func.isRequired,
  toggleDialog: PropTypes.func.isRequired
};

class UpdateUser extends React.Component {

  constructor(props) {
    super(props);
    this.state = {
      value: this.props.value,
      isSubmitBtnActive: false
    };
  }

  handleInputChange = (e) => {
    const value = e.target.value;
    this.setState({
      value: value
    });
  }

  handleKeyPress = (e) => {
    if (e.key == 'Enter') {
      this.handleSubmit();
      e.preventDefault();
    }
  }

  handleSubmit = () => {
    this.props.updateValue(this.state.value.trim());
    this.props.toggleDialog();
  }

  render() {
    const  { dialogTitle, toggleDialog } = this.props;
    return (
      <Modal isOpen={true} toggle={toggleDialog}>
        <ModalHeader toggle={toggleDialog}>{this.props.dialogTitle}</ModalHeader>
        <ModalBody>
          <Form>
            <FormGroup>
                <Input
                  type="text"
                  value={this.state.value}
                  onKeyPress={this.handleKeyPress} 
                  onChange={this.handleInputChange}
                />
            </FormGroup>
          </Form>
        </ModalBody>
        <ModalFooter>
          <Button color="secondary" onClick={toggleDialog}>{gettext('Cancel')}</Button>
          <Button color="primary" onClick={this.handleSubmit}>{gettext('Submit')}</Button>
        </ModalFooter>
      </Modal>
    );
  }
}

UpdateUser.propTypes = propTypes;

export default UpdateUser;