layout: Export PressureBarrier

It's an utility function that extensions can use to create pointer barriers,
so export it to allow wider usage

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2900>

diff --git a/js/ui/layout.js b/js/ui/layout.js
index 5611dadcb276639346dc394e1e3d45a94e495094..d1053df48f4a9887ddbacfbd177410d7deecdb00 100644 (file)
--- a/js/ui/layout.js
+++ b/js/ui/layout.js
@@ -1299,7 +1299,7 @@ class HotCorner extends Clutter.Actor {
     }
 });
 
-class PressureBarrier extends Signals.EventEmitter {
+export class PressureBarrier extends Signals.EventEmitter {
     constructor(threshold, timeout, actionMode) {
         super();