private Node getNextMeaningfullNode() {
if (comp.nodesForNext == null) {
comp.nodesForNext = new LinkedList<Node>();
comp.nodesForNext.add(comp.getExplorerManager().getRootContext());
}
List<Node> nodesForNext = comp.nodesForNext;
while (!nodesForNext.isEmpty()) {
Node top = nodesForNext.remove(0);
if (top.getChildren() != Children.LEAF) {
nodesForNext.addAll(0, Arrays.asList(top.getChildren().getNodes(true)));
continue;
}
ErrorDescription ed = top.getLookup().lookup(ErrorDescription.class);
if (ed != null) {
Node[] selected = comp.getExplorerManager().getSelectedNodes();
if (selected.length == 1 && selected[0] == top) {
addToSeenNodes(top);
continue;
}
return top;
}
}
return null;
}
private void addToSeenNodes(Node n) {
if (comp.seenNodes == null) {
comp.seenNodes = new LinkedList<Node>();
}
comp.seenNodes.add(0, n);
}
public void actionPerformed(ActionEvent e) {
Node node = getNextMeaningfullNode();
if (node == null) {
// should not happen
fireEnabledChanged();
return;
}
OpenCookie oc = node.getLookup().lookup(OpenCookie.class);
assert oc != null;
addToSeenNodes(node);
try {
comp.getExplorerManager().setSelectedNodes(new Node[] {node});
} catch (PropertyVetoException ex) {
Exceptions.printStackTrace(ex);
}
oc.open();
fireEnabledChanged();
}
