gtk:action-bar-revealed (object)

object -- a gtk:action-bar widget
revealed -- a boolean whether the action bar shows its contents

The accessor for the revealed slot of the gtk:action-bar class gets or sets whether the action bar shows its contents. Changing the revealed property will make the action bar reveal (true) or conceal (false) itself via a sliding transition. This does not show or hide the action bar in the visible property sense, so revealing has no effect if the visible property is false.