/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
package net.rrm.ehour.ui.common.form;
import org.apache.wicket.AttributeModifier;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.markup.html.form.FormComponent;
import org.apache.wicket.model.AbstractReadOnlyModel;
import org.apache.wicket.util.visit.IVisit;
import org.apache.wicket.util.visit.IVisitor;
import java.io.Serializable;
/**
* Marks invalid form entries red
*
* @author Thies
*/
public class FormHighlighter implements IVisitor<FormComponent<?>, Object>, Serializable {
private static final long serialVersionUID = 6905807838333630105L;
private transient AjaxRequestTarget target;
public FormHighlighter(AjaxRequestTarget target) {
this.target = target;
}
@Override
public void component(FormComponent<?> formComponent, IVisit<Object> visit) {
if (target != null) {
// paint it red if invalid
if (!formComponent.isValid()) {
formComponent.add(getColorModifier("#ff0000"));
if (formComponent instanceof TextFieldWithHistory) {
final TextFieldWithHistory textFieldWithHistory = (TextFieldWithHistory) formComponent;
textFieldWithHistory.rememberCurrentValidity();
textFieldWithHistory.rememberCurrentValue();
}
target.add(formComponent);
}
// reset color if it was invalid and needs to be reset
else if (formComponent instanceof TextFieldWithHistory) {
TextFieldWithHistory ttField = (TextFieldWithHistory) formComponent;
if (ttField.isValueChanged()) {
if (!ttField.isPreviousValid()) {
formComponent.add(getColorModifier("#536e87;"));
ttField.rememberCurrentValidity();
}
target.add(formComponent);
}
ttField.rememberCurrentValue();
}
}
}
@SuppressWarnings("serial")
private AttributeModifier getColorModifier(final String color) {
return new AttributeModifier("style", new AbstractReadOnlyModel<String>() {
public String getObject() {
return "color: " + color;
}
});
}
}