DesktopIntegration: don't send dock windows

Author: lenemter

lib/Utils.vala

@@ -338,6 +338,17 @@ namespace Gala {
             }
         }
 
+        public static inline bool get_window_and_ancestors_normal (Meta.Window window) {
+            var normal = true;
+            window.foreach_ancestor ((ancestor_window) => {
+                normal = normal || get_window_is_normal (ancestor_window);
+
+                return normal;
+            });
+
+            return normal;
+        }
+
         public static int calculate_button_size (float monitor_scale) {
             return Utils.scale_to_int (BUTTON_SIZE, monitor_scale);
         }

src/DesktopIntegration.vala

@@ -74,19 +74,7 @@ public class Gala.DesktopIntegration : GLib.Object {
     }
 
     private bool is_eligible_window (Meta.Window window) {
-        if (window.is_override_redirect ()) {
-            return false;
-        }
-
-        switch (window.get_window_type ()) {
-            case Meta.WindowType.NORMAL:
-            case Meta.WindowType.DIALOG:
-            case Meta.WindowType.MODAL_DIALOG:
-            case Meta.WindowType.UTILITY:
-                return true;
-            default:
-                return false;
-        }
+        return !window.is_override_redirect () && Utils.get_window_and_ancestors_normal (window);
     }
 
     public Window[] get_windows () throws GLib.DBusError, GLib.IOError {