[gnome-games/wip/exalm/spinner-performance: 18/19] fixme: A hack for crossfade

[Alexander Mikhaylenko <alexm src gnome org>]

commit 9e2f3a361a3bfad34a177afa990fe54ae83b990f
Author: Alexander Mikhaylenko <exalm7659 gmail com>
Date:   Wed Sep 5 21:23:17 2018 +0500

    fixme: A hack for crossfade
    
    The main stacks don't use transition by default. However, we want it to
    happen for loading state. One solution would be to enable it generally,
    but this one enables it only while switching from loading to collection
    initially. :(

 src/ui/application-window.vala | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
---
diff --git a/src/ui/application-window.vala b/src/ui/application-window.vala
index e81dc5af..31ec9dff 100644
--- a/src/ui/application-window.vala
+++ b/src/ui/application-window.vala
@@ -711,7 +711,12 @@ private class Games.ApplicationWindow : Gtk.ApplicationWindow {
        }
 
        public void on_collection_loaded () {
-               if (ui_state == UiState.LOADING)
+               if (ui_state == UiState.LOADING) {
+                       content_box.transition_type = Gtk.StackTransitionType.CROSSFADE;
+                       header_bar.transition_type = Gtk.StackTransitionType.CROSSFADE;
                        ui_state = UiState.COLLECTION;
+                       content_box.transition_type = Gtk.StackTransitionType.NONE;
+                       header_bar.transition_type = Gtk.StackTransitionType.NONE;
+               }
        }
 }