/*
* This library is part of OpenCms -
* the Open Source Content Management System
*
* Copyright (c) Alkacon Software GmbH (http://www.alkacon.com)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* For further information about Alkacon Software, please see the
* company website: http://www.alkacon.com
*
* For further information about OpenCms, please see the
* project website: http://www.opencms.org
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package org.opencms.gwt.client.ui.input;
import org.opencms.gwt.client.validation.I_CmsValidationController;
import org.opencms.gwt.client.validation.I_CmsValidator;
import org.opencms.gwt.shared.CmsValidationResult;
import org.opencms.util.CmsStringUtil;
/**
* A validator that checks whether a field is not empty.<p>
*
* @since 8.0.0
*/
public class CmsNonEmptyValidator implements I_CmsValidator {
/** The error message to display if the validation fails. */
private String m_errorMessage;
/**
* Constructs a new validator with a given error message.<p>
*
* @param errorMessage the error message to use when the validated field is empty
*/
public CmsNonEmptyValidator(String errorMessage) {
m_errorMessage = errorMessage;
}
/**
* @see org.opencms.gwt.client.validation.I_CmsValidator#validate(org.opencms.gwt.client.ui.input.I_CmsFormField, org.opencms.gwt.client.validation.I_CmsValidationController)
*/
public void validate(I_CmsFormField field, I_CmsValidationController controller) {
String value = field.getWidget().getFormValueAsString();
CmsValidationResult result;
if (CmsStringUtil.isEmptyOrWhitespaceOnly(value)) {
result = new CmsValidationResult(m_errorMessage);
} else {
result = CmsValidationResult.VALIDATION_OK;
}
controller.provideValidationResult(field.getId(), result);
}
}