this.buttonClasses = 'btn btn-sm';
        this.applyButtonClasses = 'btn-primary';
        this.cancelButtonClasses = 'btn-default';

        this.locale = {
            direction: 'ltr',
            format: moment.localeData().longDateFormat('L'),
            separator: ' - ',
            applyLabel: 'Apply',
            cancelLabel: 'Cancel',
            weekLabel: 'W',