[libhandy] stackable-box: Fix allocation during mode transitions

[Adrien Plazas <aplazas src gnome org>]

commit 31af86acb52538390e102e2ca05f781775dbfa7d
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Thu Jun 18 23:43:04 2020 +0500

    stackable-box: Fix allocation during mode transitions
    
    On the very last frame the size doesn't change anymore, and
    queue_resize() fails. Use get_allocate() instead, also clean up the
    unused comments.
    
    This will help to prevent glitches later with HdyHeaderGroup in
    combination with
    https://gitlab.gnome.org/GNOME/libhandy/-/merge_requests/480
    
    Since all children will be visible during mode transitions,
    HdyHeaderGroup will switch the decoration layout on the last frame of
    the transition, and it's important that it gets a relayout it needs.
    
    Signed-off-by: Alexander Mikhaylenko <alexm gnome org>

 src/hdy-stackable-box.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)
---
diff --git a/src/hdy-stackable-box.c b/src/hdy-stackable-box.c
index 0b9169dc..7b591f90 100644
--- a/src/hdy-stackable-box.c
+++ b/src/hdy-stackable-box.c
@@ -700,18 +700,7 @@ hdy_stackable_box_set_position (HdyStackableBox *self,
       new_visible != gtk_widget_get_child_visible (child))
     gtk_widget_set_child_visible (child, new_visible);
 
-  /* FIXME Copied from GtkRevealer IIRC, check whether it's useful. */
-  /* transition = effective_transition (self); */
-  /* if (transition == GTK_REVEALER_TRANSITION_TYPE_CROSSFADE) { */
-  /*   gtk_widget_set_opacity (GTK_WIDGET (self->container), self->mode_transition.current_pos); */
-  /*   gtk_widget_queue_draw (GTK_WIDGET (self->container)); */
-  /* } */
-  /* else */
-    gtk_widget_queue_resize (GTK_WIDGET (self->container));
-  /* } */
-
-  /* if (self->mode_transition.current_pos == self->mode_transition.target_pos) */
-  /*   g_object_notify_by_pspec (G_OBJECT (self), props[PROP_CHILD_REVEALED]); */
+  gtk_widget_queue_allocate (GTK_WIDGET (self->container));
 }
 
 static void