Extract utils::is_mapped()

1 files changed, 6 insertions, 0 deletions

diff --git a/src/utils/mod.rs b/src/utils/mod.rs
index 2f16e855..c1e57b7b 100644
--- a/src/utils/mod.rs
+++ b/src/utils/mod.rs
@@ -12,6 +12,7 @@ use bitflags::bitflags;
 use directories::UserDirs;
 use git_version::git_version;
 use niri_config::{Config, OutputName};
+use smithay::backend::renderer::utils::with_renderer_surface_state;
 use smithay::input::pointer::CursorIcon;
 use smithay::output::{self, Output};
 use smithay::reexports::rustix::time::{clock_gettime, ClockId};
@@ -181,6 +182,11 @@ pub fn ipc_transform_to_smithay(transform: niri_ipc::Transform) -> Transform {
     }
 }
 
+pub fn is_mapped(surface: &WlSurface) -> bool {
+    // None if the surface hadn't committed yet.
+    with_renderer_surface_state(surface, |state| state.buffer().is_some()).unwrap_or(false)
+}
+
 pub fn send_scale_transform(
     surface: &WlSurface,
     data: &SurfaceData,