[gnome-music/wip/jfelder/selection-misc-cleanups: 6/20] songsview: Prevent selection changes if the view is not visible

[Jean Felder <jfelder src gnome org>]

commit 3de6691475946f8b8ffef4a08bfda69721afdcf1
Author: Jean Felder <jfelder src gnome org>
Date:   Fri Jan 10 13:23:02 2020 +0100

    songsview: Prevent selection changes if the view is not visible
    
    A user can only select songs if the view is visible.

 gnomemusic/views/songsview.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/gnomemusic/views/songsview.py b/gnomemusic/views/songsview.py
index a786cdd9..30549131 100644
--- a/gnomemusic/views/songsview.py
+++ b/gnomemusic/views/songsview.py
@@ -156,7 +156,8 @@ class SongsView(BaseView):
     @log
     def _on_selection_mode_changed(self, widget, data=None):
         selection_mode = self._window.props.selection_mode
-        if selection_mode == self.props.selection_mode:
+        if (selection_mode == self.props.selection_mode
+                or self.get_parent().get_visible_child() != self):
             return
 
         super()._on_selection_mode_changed(widget, data)