DragTabFrame closing inconsistently

Question

The code below is supposed to work a little like the Multi-Document Interface (MDI) you might see in a browser like FF, IE or Chrome. It presents \'documents\' (a black bu

Answer 1

Deactivating the timer, the inconsistencies I found were when dragging the last tab into a new (no existing) frame. That was because of a bad placed else that didn't let the code responsible for checking and closing the original Frame to run. I've modified it like this and it works so far, without the timer:

    @Override
    public void mouseReleased(MouseEvent e) {
        JComponent c = (JComponent) e.getSource();
        if (c.getTopLevelAncestor().getBounds().contains(e.getLocationOnScreen())) {
            // do nothing, the drop point is the same frame
        } else {
            DragTabFrame dtf = getTargetFrame(e.getLocationOnScreen());
            if (dtf == null) {
                dtf = new DragTabFrame();
                dtf.init();
                dtf.setLocation(e.getLocationOnScreen());
            }// else {
            DragTabFrame fromFrame = dragTabManager.getCurrentFrame();
            fromFrame.removeTabComponent(c);
            JTabbedPane tp = fromFrame.getTabbedPane();
            if (tp.getTabCount() == 0) {
                fromFrame.setVisible(false);
                fromFrame.dispose();
            } 
            //}
            dtf.addTabComponent(dragTabManager.getCurrentTitle(), c);
            dtf.pack();
            dtf.setVisible(true);
        }
    }

[...]

public DragTabManager() {
    /* unused actionlistener code here */

    //timer = new Timer(200,actionListener);
    //timer.start();
}

I don't think there should be any other problems, though I don't know about that closing JVM problem you mentioned.