de.swm.commons.mobile.client.widgets.ErrorLabel Maven / Gradle / Ivy
/*
* Copyright 2011 SWM Services GmbH.
*
* 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.
*/
package de.swm.commons.mobile.client.widgets;
import com.google.gwt.user.client.ui.HasValue;
import com.google.gwt.user.client.ui.Label;
import de.swm.commons.mobile.client.SWMMobile;
import de.swm.commons.mobile.client.validation.IErrorOutputElement;
/**
* Simple implementation of an error Output element. The {@link ErrorLabel} should be used if one form field will
* display exactly one message at time.
*
* @author wiese.daniel
* copyright (C) 2012, SWM Services GmbH
*
*/
public class ErrorLabel extends Label implements IErrorOutputElement {
/**
* Default constructor.
*/
public ErrorLabel() {
setStyleName(SWMMobile.getTheme().getMGWTCssBundle().getErrorCss().errorText());
this.setVisible(false);
}
/**
* {@inheritDoc}
*/
@Override
public void appendErrorMessage(HasValue producer, String errorMessageToAppend) {
this.setText(errorMessageToAppend);
this.setVisible(true);
}
/**
* {@inheritDoc}
*/
@Override
public void clearErrorMessage() {
this.setText("");
this.setVisible(false);
}
}