Benjamin Otte authored Aug 18, 2018 and Matthias Clasen committed Mar 25, 2020

Similar to GtkShortcutTrigger, GtkShortCutAction provides all the
different ways to activate a shortcut.

So far, these different ways are supported:

 - do nothing
 - Call a user-provided callback
 - Call gtk_widget_activate()
 - Call gtk_widget_mnemonic_activate()
 - Emit an action signal
 - Activate an action from the widget's action muxer