public Object execute(final ExecutionEvent event) throws ExecutionException {
// assumes there is only one application node
final IApplicationNode applicationNode = ApplicationNodeManager.getApplicationNode();
final List<ISubApplicationNode> children = applicationNode.getChildren();
final INavigationNode<?>[] nodes = children.toArray(new ISubApplicationNode[children.size()]);
final INavigationNode<?> nextNode =
toNext ? findNextNode(nodes) : findPreviousNode(nodes, true);
if (nextNode != null) {
nextNode.activate();
}
return null;
}
public IProgressVisualizer getProgressVisualizer(final Object context) {
final IProgressVisualizer aVisualizer = new ProgressVisualizer();
if (context != null && INavigationNode.class.isAssignableFrom(context.getClass())) {
final INavigationNode<?> node = INavigationNode.class.cast(context);
final IStatuslineUIProcessRidget statuslineUIProcessRidget = getStatuslineUIProcessRidget();
if (statuslineUIProcessRidget != null) {
aVisualizer.addObserver(statuslineUIProcessRidget);
}
ISubApplicationNode subApp = node.getParentOfType(ISubApplicationNode.class);
if (subApp == null && context instanceof ISubApplicationNode) {
subApp = (ISubApplicationNode) context;
}
if (subApp != null) {
aVisualizer.addObserver(getUIProcessRidget(subApp));
aVisualizer.addObserver(createObserver(node));
}
}
return aVisualizer;
}
/** Returns true if this node is selected. */
@Override
protected boolean isSelected(final INavigationNode<?> node) {
return node.isSelected();
}