[gnome-games] retro-runner: Notify on supports_snapshots property changes

[Alexander Mikhaylenko <alexm src gnome org>]

commit f6537aac427f5eebc02a8e90fa653f1ff6f691ce
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Sun Mar 21 03:17:26 2021 +0500

    retro-runner: Notify on supports_snapshots property changes

 src/retro/retro-runner.vala | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/src/retro/retro-runner.vala b/src/retro/retro-runner.vala
index cc909972..42e91adf 100644
--- a/src/retro/retro-runner.vala
+++ b/src/retro/retro-runner.vala
@@ -275,6 +275,8 @@ public class Games.RetroRunner : Object, Runner {
                core.run ();
                running = true;
                started = true;
+
+               notify_property ("supports-snapshots");
        }
 
        public void pause () {
@@ -351,6 +353,8 @@ public class Games.RetroRunner : Object, Runner {
                _running = false;
                started = false;
                core_loaded = false;
+
+               notify_property ("supports-snapshots");
        }
 
        public Snapshot? try_create_snapshot (bool is_automatic) {