wiki-convert/wiki-asciidoc/DevFaqActionNodePopupSubmenu.asciidoc [109:168]:
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@ActionID(
        category = "MyActions",
        id = "de.markiewb.netbeans.sample.ContextAwarePopupAction"
)
@ActionRegistration(
        displayName = "#CTL_ContextAwarePopupAction", lazy = false
)
@ActionReferences({
    @ActionReference(path = "Projects/Actions")
})
@Messages("CTL_ContextAwarePopupAction=I am a context-aware submenu")
public final class ContextAwarePopupAction extends AbstractAction implements ActionListener, Presenter.Popup {

    private final Lookup.Result<Project> result;
    private final transient LookupListener lookupListener;

    public ContextAwarePopupAction() {
        putValue(NAME, Bundle.CTL_ContextAwarePopupAction());
        //disabled by default - at loading time
        setEnabled(false);
        //create an action, which is only enabled when exactly 2 projects are selected
        result = Utilities.actionsGlobalContext().lookupResult(Project.class);
        this.lookupListener = new LookupListener() {

            @Override
            public void resultChanged(LookupEvent ev) {
                final Runnable runnable = new Runnable() {

                    @Override
                    public void run() {
                        int s = result.allInstances().size();
                        ContextAwarePopupAction.this.setEnabled(s == 2);
                    }
                };
                // to make sure that it will be executed on EDT
                if (EventQueue.isDispatchThread()) {
                    runnable.run();
                } else {
                    SwingUtilities.invokeLater(runnable);
                }
            }
        };
        result.addLookupListener(WeakListeners.create(LookupListener.class, this.lookupListener, result));
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        //NOP
    }

    @Override
    public JMenuItem getPopupPresenter() {
        JMenu main = new JMenu(this);
        List<? extends Action> actionsForPath = Utilities.actionsForPath("Actions/MyActions/SubActions");
        for (Action action : actionsForPath) {
            main.add(action);
        }
        return main;
    }
}
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wiki-export/wiki-wikimedia/DevFaqActionNodePopupSubmenu.mediawiki [99:158]:
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@ActionID(
        category = "MyActions",
        id = "de.markiewb.netbeans.sample.ContextAwarePopupAction"
)
@ActionRegistration(
        displayName = "#CTL_ContextAwarePopupAction", lazy = false
)
@ActionReferences({
    @ActionReference(path = "Projects/Actions")
})
@Messages("CTL_ContextAwarePopupAction=I am a context-aware submenu")
public final class ContextAwarePopupAction extends AbstractAction implements ActionListener, Presenter.Popup {

    private final Lookup.Result<Project> result;
    private final transient LookupListener lookupListener;

    public ContextAwarePopupAction() {
        putValue(NAME, Bundle.CTL_ContextAwarePopupAction());
        //disabled by default - at loading time
        setEnabled(false);
        //create an action, which is only enabled when exactly 2 projects are selected
        result = Utilities.actionsGlobalContext().lookupResult(Project.class);
        this.lookupListener = new LookupListener() {

            @Override
            public void resultChanged(LookupEvent ev) {
                final Runnable runnable = new Runnable() {

                    @Override
                    public void run() {
                        int s = result.allInstances().size();
                        ContextAwarePopupAction.this.setEnabled(s == 2);
                    }
                };
                // to make sure that it will be executed on EDT
                if (EventQueue.isDispatchThread()) {
                    runnable.run();
                } else {
                    SwingUtilities.invokeLater(runnable);
                }
            }
        };
        result.addLookupListener(WeakListeners.create(LookupListener.class, this.lookupListener, result));
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        //NOP
    }

    @Override
    public JMenuItem getPopupPresenter() {
        JMenu main = new JMenu(this);
        List<? extends Action> actionsForPath = Utilities.actionsForPath("Actions/MyActions/SubActions");
        for (Action action : actionsForPath) {
            main.add(action);
        }
        return main;
    }
}
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