[libhandy/wip/exalm/leaflet-fixes: 2/2] stackable-box: Don't skip the gesture with 0 transition duration

[Alexander Mikhaylenko <alexm src gnome org>]

commit 3976c99e73f038d30dc7b0e4eb05a147dfd7a0f5
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Fri May 29 14:49:33 2020 +0500

    stackable-box: Don't skip the gesture with 0 transition duration
    
    The transition-duration property only matters for programmatic transitions.
    
    For the gesture, the duration is determined by HdySwipeTracker, or is 0 if
    animations are disabled system-wide, so skipping it in this case is wrong.
    
    Signed-off-by: Alexander Mikhaylenko <alexm gnome org>

 src/hdy-stackable-box.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/src/hdy-stackable-box.c b/src/hdy-stackable-box.c
index 24398349..7352cd64 100644
--- a/src/hdy-stackable-box.c
+++ b/src/hdy-stackable-box.c
@@ -499,9 +499,10 @@ hdy_stackable_box_start_child_transition (HdyStackableBox               *self,
   GtkWidget *widget = GTK_WIDGET (self->container);
 
   if (gtk_widget_get_mapped (widget) &&
-      (hdy_get_enable_animations (widget) || self->child_transition.is_gesture_active) &&
+      ((hdy_get_enable_animations (widget) &&
+        transition_duration != 0) ||
+       self->child_transition.is_gesture_active) &&
       transition_type != HDY_STACKABLE_BOX_TRANSITION_TYPE_NONE &&
-      transition_duration != 0 &&
       self->last_visible_child != NULL &&
       /* Don't animate child transition when a mode transition is ongoing. */
       self->mode_transition.tick_id == 0) {