@Override
		public void mouseClicked(MouseEvent e) {
			// Note: we don't really care about the type of mouse event; we just want the location.
			//      (the event may not actually be a clicked event, depending on the platform)

			JMenuItem menuItem = new JMenuItem("Rename");
			menuItem.addActionListener(new RenameActionListener());
			HelpService helpService = DockingWindowManager.getHelpService();
			helpService.registerHelp(menuItem, RENAME_HELP);

			JPopupMenu menu = new JPopupMenu();
			menu.add(menuItem);
			menu.show(e.getComponent(), e.getX(), e.getY());
		}
Makes the component the selected tab.
@param placeholder the component placeholder object of the component to be shown in the active tab.
Ghidra/Framework/Docking/src/main/java/docking/ComponentNode.java