Merge pull request #3712 from AvaloniaUI/x11-remove-transient-hint

[X11, FlyWM] Completely remove WM_TRANSIENT_FOR property
6 years ago · 4e5cec2d9e
1 changed files with 9 additions and 1 deletions
--- a/src/Avalonia.X11/X11Window.cs
+++ b/src/Avalonia.X11/X11Window.cs
@ -735,7 +735,15 @@ namespace Avalonia.X11
            _transientParent = window;
            _transientParent?._transientChildren.Add(this);
            if (informServer)
-                XSetTransientForHint(_x11.Display, _handle, _transientParent?._handle ?? IntPtr.Zero);
+                SetTransientForHint(_transientParent?._handle);
+        }
+
+        void SetTransientForHint(IntPtr? parent)
+        {
+            if (parent == null || parent == IntPtr.Zero)
+                XDeleteProperty(_x11.Display, _handle, _x11.Atoms.XA_WM_TRANSIENT_FOR);
+            else
+                XSetTransientForHint(_x11.Display, _handle, parent.Value);
        }

        public void Show()