From 04f1bc0960908ede6976f4030408454481605fc0 Mon Sep 17 00:00:00 2001
From: Leah Amelia Chen <hi@pluie.me>
Date: Tue, 4 Aug 2026 03:46:31 +0800
Subject: [PATCH] winproto/wayland: disable custom blur on GTK >=4.23.3

GTK 4.23.3 added its own (much smarter) implementation of background blur,
which means our implementation is not only redundant, it also crashes the
program because a surface cannot have multiple associated blur objects.
Ergo, don't do custom blur on newer GTK versions.

See #13578
---
 src/apprt/gtk/winproto/wayland.zig | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/apprt/gtk/winproto/wayland.zig b/src/apprt/gtk/winproto/wayland.zig
index dc3647679..0babf7111 100644
--- a/src/apprt/gtk/winproto/wayland.zig
+++ b/src/apprt/gtk/winproto/wayland.zig
@@ -174,6 +174,12 @@ pub const Window = struct {
         };
 
         const bg_effect: ?*ext.BackgroundEffectSurfaceV1 = bg: {
+            if (gtk_version.runtimeAtLeast(4, 23, 3)) {
+                // GTK 4.23.3 added an official way to do background blur,
+                // so we don't need to do anything on our own.
+                break :bg null;
+            }
+
             const mgr = app.globals.get(.ext_background_effect) orelse
                 break :bg null;