1 files changed, 20 insertions, 1 deletions
diff --git a/src/clients/hints.rs b/src/clients/hints.rs
index f59794a..182c655 100644
--- a/src/clients/hints.rs
+++ b/src/clients/hints.rs
@@ -1,5 +1,5 @@
 use xcb::{
-    x::{self, ChangeProperty, GetProperty, Pixmap, PropMode, Window},
+    x::{self, Atom, ChangeProperty, GetProperty, Gravity, Pixmap, PropMode, Window},
     Xid, XidNew,
 };
 
@@ -122,3 +122,22 @@ pub fn transient_for(conn: &Connection, window: Window) -> Option<Window> {
 
     Some(hints.value::<Window>()[0])
 }
+
+/// Check if the given window is flagged as a dialog with the `NET_WM_WINDOW_TYPE` property
+pub fn is_dialog(conn: &Connection, window: Window) -> bool {
+    let Ok(hints) = conn.wait_for_reply(conn.send_request(&GetProperty {
+        window,
+        delete: false,
+        property: conn.atoms.net_wm_window_type,
+        r#type: x::ATOM_ATOM,
+        long_offset: 0,
+        long_length: 1,
+    })) else {
+        return false;
+    };
+
+    hints.r#type() == x::ATOM_ATOM
+        && hints.length() == 1
+        && hints.format() == 32
+        && hints.value::<Atom>()[0] == conn.atoms.net_wm_window_type_dialog
+}