block action

allow action when in window mode, e.g. when the focus is in an application window

allow action while the overview is active

allow action while the expo is active

allow action when the screen is locked, e.g. when the screen shield is shown

allow action in the unlock dialog

allow action when a system modal dialog (e.g. authentication or session dialogs) is open

allow action in looking glass

allow action while a shell menu is open

always allow action