The "row-activated" signal is emitted when the method
[method@Gtk.TreeView.row_activated] is called.
This signal is emitted when the user double-clicks a treeview row with the
[property@Gtk.TreeView:activate-on-single-click] property set to %FALSE,
or when the user single-clicks a row when that property set to %TRUE.
This signal is also emitted when a non-editable row is selected and one
of the keys: <kbd>Space</kbd>, <kbd>Shift</kbd>+<kbd>Space</kbd>,
<kbd>Return</kbd> or <kbd>Enter</kbd> is pressed.
The "row-activated" signal is emitted when the method [method@Gtk.TreeView.row_activated] is called.
This signal is emitted when the user double-clicks a treeview row with the [property@Gtk.TreeView:activate-on-single-click] property set to %FALSE, or when the user single-clicks a row when that property set to %TRUE.
This signal is also emitted when a non-editable row is selected and one of the keys: <kbd>Space</kbd>, <kbd>Shift</kbd>+<kbd>Space</kbd>, <kbd>Return</kbd> or <kbd>Enter</kbd> is pressed.
For selection handling refer to the tree widget conceptual overview
as well as GtkTreeSelection.