layout: Don't use the actors pick workaround on update regions

As per introduction of geometric picking in mutter [1], the workaround we
had consisting in picking all the actors to ensure that all the stage
projections were computed to get valid actors stage-transformed coordinates
and sizes is not working anymore as there is more caching involved.

However since this can be now handled properly in mutter [2], initializing a
valid projection matrix since the beginning, we can get rid of the
workaround.

[1] https://gitlab.gnome.org/GNOME/mutter/commit/14c706e51
[2] https://gitlab.gnome.org/GNOME/mutter/merge_requests/803

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/734

diff --git a/js/ui/layout.js b/js/ui/layout.js
index 4708710f48c12fcf3514b6ffaf49256349744f22..744a8f1192dba16d96af7e7f1591e667a5ed7b0a 100644 (file)
--- a/js/ui/layout.js
+++ b/js/ui/layout.js
@@ -1015,11 +1015,6 @@ var LayoutManager = GObject.registerClass({
         if (Main.modalCount > 0)
             return GLib.SOURCE_REMOVE;
 
-        // Bug workaround - get_transformed_position()/get_transformed_size() don't work after
-        // a change in stage size until the first pick or paint.
-        // https://bugzilla.gnome.org/show_bug.cgi?id=761565
-        global.stage.get_actor_at_pos(Clutter.PickMode.ALL, 0, 0);
-
         let rects = [], struts = [], i;
         let isPopupMenuVisible = global.top_window_group.get_children().some(isPopupMetaWindow);
         let wantsInputRegion = !isPopupMenuVisible;