/*
* This file is not part of the ItsNat framework.
*
* Original source code use and closed source derivatives are authorized
* to third parties with no restriction or fee.
* The original source code is owned by the author.
*
* This program is distributed AS IS 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.
*
* (C) Innowhere Software a service of Jose Maria Arranz Santamaria, Spanish citizen.
*/
package org.itsnat.feashow.features.comp.autobuild.mdforms;
import org.itsnat.comp.ItsNatComponentManager;
import org.itsnat.core.ItsNatDocument;
import org.itsnat.core.domutil.ItsNatDOMUtil;
import org.itsnat.feashow.FeatureTreeNode;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.events.Event;
import org.w3c.dom.events.EventListener;
import org.w3c.dom.events.EventTarget;
import org.w3c.dom.html.HTMLCollection;
import org.w3c.dom.html.HTMLInputElement;
import org.w3c.dom.html.HTMLOptionElement;
import org.w3c.dom.html.HTMLSelectElement;
public class MarkupDrivenSelMultTreeNode extends FeatureTreeNode implements EventListener
{
protected Element parentElem;
protected HTMLSelectElement selectElem;
protected Element removeElem;
protected HTMLInputElement itemElem;
protected HTMLInputElement posElem;
protected Element updateElem;
protected Element insertElem;
public MarkupDrivenSelMultTreeNode()
{
}
public void startExamplePanel()
{
ItsNatDocument itsNatDoc = getItsNatDocument();
Document doc = itsNatDoc.getDocument();
this.parentElem = doc.getElementById("compGroupId");
ItsNatComponentManager compMgr = itsNatDoc.getItsNatComponentManager();
compMgr.setMarkupDrivenComponents(true);
compMgr.buildItsNatComponents(parentElem);
this.selectElem = (HTMLSelectElement)doc.getElementById("selectId");
((EventTarget)selectElem).addEventListener("change",this,false);
this.removeElem = doc.getElementById("removeId");
((EventTarget)removeElem).addEventListener("click",this,false);
this.itemElem = (HTMLInputElement)doc.getElementById("itemId");
this.posElem = (HTMLInputElement)doc.getElementById("posId");
updateItemForm();
this.updateElem = doc.getElementById("updateId");
((EventTarget)updateElem).addEventListener("click",this,false);
this.insertElem = doc.getElementById("insertId");
((EventTarget)insertElem).addEventListener("click",this,false);
}
public void endExamplePanel()
{
ItsNatDocument itsNatDoc = getItsNatDocument();
((EventTarget)selectElem).removeEventListener("change",this,false);
this.selectElem = null;
((EventTarget)removeElem).removeEventListener("click",this,false);
this.removeElem = null;
this.itemElem = null;
this.posElem = null;
((EventTarget)updateElem).removeEventListener("click",this,false);
this.updateElem = null;
((EventTarget)insertElem).removeEventListener("click",this,false);
this.insertElem = null;
ItsNatComponentManager compMgr = itsNatDoc.getItsNatComponentManager();
compMgr.removeItsNatComponents(parentElem,true);
compMgr.setMarkupDrivenComponents(false);
this.parentElem = null;
}
public HTMLOptionElement getOptionElement(int index)
{
if (index < 0) return null;
return (HTMLOptionElement)selectElem.getOptions().item(index);
}
public String getOptionText(int index)
{
HTMLOptionElement option = getOptionElement(index);
if (option == null) return null;
return option.getText();
}
public int indexOf(String item)
{
HTMLCollection col = selectElem.getOptions();
int len = col.getLength();
for(int i = 0; i < len; i++)
{
HTMLOptionElement option = (HTMLOptionElement)col.item(i);
if (option.getText().equals(item))
return i;
}
return -1;
}
public void updateItemForm()
{
int selectedIndex = selectElem.getSelectedIndex();
itemElem.setValue(getOptionText(selectedIndex));
posElem.setValue(Integer.toString(selectedIndex));
}
public void handleEvent(Event evt)
{
log(evt);
EventTarget currentTarget = evt.getCurrentTarget();
if (currentTarget == selectElem)
{
updateItemForm();
StringBuilder msg = new StringBuilder();
msg.append("Changed selection: ");
HTMLCollection col = selectElem.getOptions();
int len = col.getLength();
for(int i = 0; i < len; i++)
{
HTMLOptionElement option = (HTMLOptionElement)col.item(i);
msg.append( option.getText() + " (" + option.getSelected() + ") " );
}
log(msg.toString());
}
else if (currentTarget == removeElem)
{
HTMLCollection col = selectElem.getOptions();
int len = col.getLength();
HTMLOptionElement[] toRemove = new HTMLOptionElement[len];
for(int i = 0; i < len; i++)
{
HTMLOptionElement option = (HTMLOptionElement)col.item(i);
if (option.getSelected())
toRemove[i] = option;
}
for(int i = 0; i < len; i++)
{
HTMLOptionElement option = toRemove[i];
if (option != null)
selectElem.removeChild(toRemove[i]);
}
}
else if ((currentTarget == updateElem) ||
(currentTarget == insertElem))
{
Document doc = getItsNatDocument().getDocument();
String newItem = itemElem.getValue();
try
{
int pos = Integer.parseInt(posElem.getValue());
if (currentTarget == updateElem)
{
HTMLOptionElement option = getOptionElement(pos);
if (option != null)
ItsNatDOMUtil.setTextContent(option,newItem);
else
getItsNatDocument().addCodeToSend("alert('Bad Position');");
}
else
{
HTMLOptionElement before = (HTMLOptionElement)getOptionElement(pos);
HTMLOptionElement added = (HTMLOptionElement)doc.createElement("option");
added.appendChild(doc.createTextNode(newItem));
selectElem.add(added, before);
selectElem.setSelectedIndex(pos);
}
}
catch(NumberFormatException ex)
{
getItsNatDocument().addCodeToSend("alert('Bad Position');");
}
catch(ArrayIndexOutOfBoundsException ex)
{
getItsNatDocument().addCodeToSend("alert('Bad Position');");
}
}
}
}