scripting/java/org/openoffice/netbeans/modules/office/nodes/ParcelDescriptorChildren.java

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   7  * OpenOffice.org - a multi-platform office productivity suite
   8  *
   9  * $RCSfile: ParcelDescriptorChildren.java,v $
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  30
  31 package org.openoffice.netbeans.modules.office.nodes;
  32
  33 import java.util.*;
  34 import javax.swing.event.ChangeEvent;
  35 import javax.swing.event.ChangeListener;
  36
  37 import org.w3c.dom.NodeList;
  38 import org.w3c.dom.Element;
  39
  40 import org.openide.nodes.*;
  41 import org.openoffice.netbeans.modules.office.actions.ParcelDescriptorParserCookie;
  42
  43 /** List of children of a containing node.
  44  * Remember to document what your permitted keys are!
  45  *
  46  * @author tomaso
  47  */
  48 public class ParcelDescriptorChildren extends Children.Keys implements ChangeListener {
  49
  50     private ParcelDescriptorParserCookie parserCookie = null;
  51
  52     public ParcelDescriptorChildren(ParcelDescriptorParserCookie cookie) {
  53         parserCookie = cookie;
  54     }
  55
  56     private void refreshKeys() {
  57         NodeList nl;
  58         int len;
  59
  60         if (parserCookie == null ||
  61             (nl = parserCookie.getScriptElements()) == null ||
  62             (len = nl.getLength()) == 0) {
  63             setKeys(Collections.EMPTY_SET);
  64             return;
  65         }
  66
  67         ArrayList keys = new ArrayList(len);
  68         for (int i = 0; i < len; i++)
  69             keys.add(nl.item(i));
  70         setKeys(keys);
  71     }
  72
  73     protected void addNotify() {
  74         super.addNotify();
  75         parserCookie.addChangeListener(this);
  76         refreshKeys();
  77     }
  78
  79     protected void removeNotify() {
  80         super.removeNotify();
  81         parserCookie.removeChangeListener(this);
  82         setKeys(Collections.EMPTY_SET);
  83     }
  84
  85     protected Node[] createNodes(Object key) {
  86         Element el = (Element)key;
  87         System.out.println("element is: " + el);
  88         return new Node[] {new ScriptNode(el)};
  89     }
  90
  91     public void stateChanged(ChangeEvent e) {
  92         refreshKeys();
  93     }
  94 }