@Override
		public void actionPerformed(ActionContext context) {
			Dimension d = myButton.getSize();
			JPopupMenu popupMenu = menuManager.getPopupMenu();
			popupMenu.addPopupMenuListener(menuManager.getMenuHandler());
			popupMenu.show(myButton, 0, d.height);
		}
Constructor for component providers
@param owner the action owner, typically a plugin
Ghidra/Framework/Docking/src/main/java/docking/DockableToolBarManager.java