extensions/xnat/src/components/XNATNavigation/XNATSubject.js
/**
   * _getSubjectButtonClassNames - Returns the class names for the subject
   * button based on state.
   *
   * @returns {string}  A string of the classnames.
   */
Returns the class names for the subject
button based on state.

@returns {string}  A string of the classnames.
Returns the class names for the subject button based on state . @returns { string } A string of the classnames .
_getSubjectButtonClassNames() {
    let subjectButtonClassNames = 'btn btn-sm btn-primary xnat-nav-button';
    if (this.state.subjectViewActive) {
      subjectButtonClassNames += ' xnat-nav-button-disabled';
    }
    return subjectButtonClassNames;
  }
_getSubjectButtonClassNames ( ) { let subjectButtonClassNames = 'btn btn-sm btn-primary xnat-nav-button' ; if ( this . state . subjectViewActive ) { subjectButtonClassNames += ' xnat-nav-button-disabled' ; } return subjectButtonClassNames ; }
_getSubjectButtonClassNames - Returns the class names for the subject
 button based on state.
_getSubjectButtonClassNames - Returns the class names for the subject button based on state .