Emitted when an application item is activated from the widget's list.
This usually happens when the user double clicks an item, or an item is selected and the user presses one of the keys Space, Shift+Space, Return or Enter.
See Implementation
Emitted when an application item is activated from the widget's list.
This usually happens when the user double clicks an item, or an item is selected and the user presses one of the keys Space, Shift+Space, Return or Enter.