To support the soft disabling of a Swing container,
we need to be able to temporary block all the actionMaps inside it.
Currently there is no way to disable all the actions for a container and all its subcomponents.

Existing: panel.setEnabled() - disables the actionMap of the panel
but ActionMaps of its children are still active

Exceptected: disabled containers must disalbe the actionMaps of its subcomponents