/*
ItsNat Java Web Application Framework
Copyright (C) 2007-2011 Jose Maria Arranz Santamaria, Spanish citizen
This software 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 3 of
the License, or (at your option) any later version.
This software 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. You should have received
a copy of the GNU Lesser General Public License along with this program.
If not, see <http://www.gnu.org/licenses/>.
*/
package org.itsnat.impl.comp.list;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import javax.swing.ComboBoxModel;
import javax.swing.DefaultComboBoxModel;
import javax.swing.ListModel;
import org.itsnat.core.domutil.ItsNatTreeWalker;
import org.itsnat.impl.core.domimpl.ItsNatNodeInternal;
import org.w3c.dom.html.HTMLOptionElement;
import org.w3c.dom.html.HTMLSelectElement;
/**
*
* @author jmarranz
*/
public class ItsNatHTMLSelectComboBoxMarkupDrivenUtil extends ItsNatHTMLSelectMarkupDrivenUtil
{
public ItsNatHTMLSelectComboBoxMarkupDrivenUtil(ItsNatHTMLSelectComboBoxImpl comp)
{
super(comp);
}
public ItsNatHTMLSelectComboBoxImpl getItsNatHTMLSelectComboBox()
{
return (ItsNatHTMLSelectComboBoxImpl)comp;
}
public void addDataModelItem(String item,ListModel dataModel)
{
((DefaultComboBoxModel)dataModel).addElement(item);
}
public void addDataModelItem(int index,String item,ListModel dataModel)
{
((DefaultComboBoxModel)dataModel).insertElementAt(item, index);
}
public void removeDataModelItem(int index,ListModel dataModel)
{
((DefaultComboBoxModel)dataModel).removeElementAt(index);
}
public void selectItem(int index,boolean selected)
{
ItsNatHTMLSelectComboBoxImpl comp = getItsNatHTMLSelectComboBox();
if (selected)
comp.setSelectedIndex(index);
else if (comp.getSelectedIndex() == index)
comp.setSelectedIndex(-1);
}
public void preSetDefaultDataModel(Object dataModel)
{
super.preSetDefaultDataModel(dataModel);
ItsNatHTMLSelectImpl comp = getItsNatHTMLSelect();
HTMLSelectElement select = comp.getHTMLSelectElement();
// El uso de HTMLSelectElement.getOptions() es terriblemente ineficiente.
// No toleramos <optgroup>
int selectedOption = -1;
int i = 0;
HTMLOptionElement option = (HTMLOptionElement)ItsNatTreeWalker.getFirstChildElement(select);
while(option != null)
{
if (option.getSelected())
{
selectedOption = i;
break;
}
i++;
option = (HTMLOptionElement)ItsNatTreeWalker.getNextSiblingElement(option);
}
// Recordar que todav�a el data model no est� asociado al componente
ItsNatComboBoxSharedImpl.setSelectedIndex((ComboBoxModel)dataModel,selectedOption);
}
public void initialSyncUIWithDataModel()
{
// Esto es necesario porque por ejemplo al inicializarse el UI se eliminan todos
// los nodos, volver�n a crearse al sincronizarse con el data model,
// pero ahora sin el atributo selected que hab�a originalmente en los nodos
// seleccionados
ItsNatHTMLSelectComboBoxImpl comp = getItsNatHTMLSelectComboBox();
int index = comp.getSelectedIndex();
if (index != -1)
comp.getItsNatHTMLSelectComboBoxUIImpl().setSelectedIndex(index);
HTMLSelectElement elem = comp.getHTMLSelectElement();
((ItsNatNodeInternal)elem).addEventListenerInternal("DOMAttrModified",this, false); // Para el atributo selected
super.initialSyncUIWithDataModel();
}
public void dispose()
{
super.dispose();
HTMLSelectElement elem = getItsNatHTMLSelect().getHTMLSelectElement();
((ItsNatNodeInternal)elem).removeEventListenerInternal("DOMAttrModified",this, false);
}
private void writeObject(ObjectOutputStream out) throws IOException
{
out.defaultWriteObject();
}
private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException
{
in.defaultReadObject();
// Hay que tener en cuenta que los event listeners internos no se serializan
if (!comp.isDisposed())
{
HTMLSelectElement elem = getItsNatHTMLSelect().getHTMLSelectElement();
((ItsNatNodeInternal)elem).addEventListenerInternal("DOMAttrModified",this, false); // Para el atributo selected
}
}
}