always allow action
allow action when the screen is locked, e.g. when the screen shield is shown
allow action in the login screen
allow action in looking glass
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 a shell menu is open
allow action when a system modal dialog (e.g. authentication or session dialogs) is open
allow action in the unlock dialog
Controls in which GNOME Shell states an action (like keybindings and gestures) should be handled.