NetBeans IDE 7.3: How to extend the context menu of the members and hierarchy view?

Today i will show you how to extend the context menu of the newly redesigned members and hierarchy view in NetBeans IDE 7.3.

Plugin your action at the following extension points

Navigator/Actions/Members/text/x-java
Navigator/Actions/Hierarchy/text/x-java

and get the TreePathHandle from the Node’s lookup. Easy isn’t it? Please note that these extension points are new in NB IDE 7.3 – see the issues [1] and [2].

This allows the integration of current/future actions which react on
TreePathHandle like

• toggle method breakpoint (when a method is selected)
• toggle class breakpoint (when a class is selected)
• run/debug main method (when a class with a main method is selected)
• run/debug test (when a class with testmethods is selected or when a testmethod is selected)
• add as profiling root (when a method is selected)
• integration of my own “Copy FQN” plugin (i will blog about it next time)

But now a more concrete example:

package de.markiewb.netbeans.sample.extendMembersAndHierarchyView;

import java.util.ArrayList;
import java.util.List;
import static javax.swing.Action.NAME;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import org.netbeans.api.java.source.TreePathHandle;
import org.openide.awt.*;
import org.openide.nodes.Node;
import org.openide.util.HelpCtx;
import org.openide.util.NbBundle;
import org.openide.util.actions.CookieAction;
import org.openide.util.actions.Presenter;

@ActionID(category = "Edit", id = "de.markiewb.netbeans.sample.extendMembersAndHierarchyView.SampleAction")
@ActionRegistration(displayName = "SampleAction")
@ActionReferences({
    @ActionReference(path = "Navigator/Actions/Members/text/x-java", position = 1150),
    @ActionReference(path = "Navigator/Actions/Hierarchy/text/x-java", position = 1150)
})
public final class SampleAction extends CookieAction implements Presenter.Popup {

    public SampleAction() {
	putValue(NAME, "Hello TreePathHandle(s)");
    }

    @Override
    public String getName() {
	return "Hello TreePathHandle(s)";
    }

    @Override
    public JMenuItem getPopupPresenter() {
	return new JMenuItem(this);
    }

    @Override
    public HelpCtx getHelpCtx() {
	return null;
    }

    @Override
    protected boolean enable(Node[] activatedNodes) {
	//.. use tph from lookup in node
	for (Node node : activatedNodes) {
	    if (null != node.getLookup().lookup(TreePathHandle.class)) {
		return true;
	    };
	}
	return false;
    }

    @Override
    protected int mode() {
	return CookieAction.MODE_ALL;
    }

    @Override
    protected Class[] cookieClasses() {
	return new Class[]{Node.class};
    }

    @Override
    protected void performAction(Node[] nodes) {
	List<TreePathHandle> treePathHandles = new ArrayList<TreePathHandle>();
	for (Node node : nodes) {
	    treePathHandles.add(node.getLookup().lookup(TreePathHandle.class));
	}
	//show all treePathHandles
	JOptionPane.showMessageDialog(null, "Hello\n" + treePathHandles);
    }
}

The result:

The full sample project is available at [3]

[1] http://netbeans.org/bugzilla/show_bug.cgi?id=220057
[2] http://netbeans.org/bugzilla/show_bug.cgi?id=224499
[3] https://github.com/markiewb/nb-api-samples/tree/master/ExtendMembersAndHierarchyView
[4] http://wiki.netbeans.org/DevFaqAddActionToMembersOrHierarchyView

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