From 49721c56410e338e3f5fe8c5275437562341eb21 Mon Sep 17 00:00:00 2001
From: Isaac Freund <mail@isaacfreund.com>
Date: Wed, 29 Apr 2026 13:29:09 +0200
Subject: [PATCH] XdgToplevel: clip capture scene tree to geometry

---
 river/XdgToplevel.zig | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/river/XdgToplevel.zig b/river/XdgToplevel.zig
index 340671a..fcf01e4 100644
--- a/river/XdgToplevel.zig
+++ b/river/XdgToplevel.zig
@@ -314,6 +314,9 @@ fn handleCommit(listener: *wl.Listener(*wlr.Surface), _: *wlr.Surface) void {
     const toplevel: *XdgToplevel = @fieldParentPtr("commit", listener);
     const view = toplevel.view;
 
+    // NB: the subsurface tree is never empty here
+    view.image_capture_scene.tree.node.subsurfaceTreeSetClip(&toplevel.wlr_toplevel.base.geometry);
+
     if (toplevel.wlr_toplevel.base.initial_commit) {
         _ = toplevel.wlr_toplevel.setWmCapabilities(.{ .fullscreen = true });