xfdesktop-focus-fix

diff --git a/xfdesktop-focus-fix b/xfdesktop-focus-fix
new file mode 100755 (executable)
index 0000000..757b562
--- /dev/null
+++ b/xfdesktop-focus-fix
@@ -0,0 +1,65 @@
+#!/usr/bin/env python3
+
+import subprocess
+import time
+import Xlib
+import Xlib.display
+
+display = Xlib.display.Display()
+root = display.screen().root
+NET_ACTIVE_WINDOW = display.intern_atom('_NET_ACTIVE_WINDOW')
+
+def main():
+    root.change_attributes(event_mask=Xlib.X.PropertyChangeMask)
+
+    handle_active_window_change()
+
+    while True:
+        event = display.next_event()
+        if is_active_window_change(event):
+            handle_active_window_change()
+
+def is_active_window_change(event):
+    return (
+        event.type == Xlib.X.PropertyNotify and
+        event.atom == NET_ACTIVE_WINDOW
+    )
+
+def handle_active_window_change():
+    window_id = get_active_window_id()
+    if not window_id:
+        focus_xfdesktop()
+
+def get_active_window_id():
+    prop = root.get_full_property(NET_ACTIVE_WINDOW, Xlib.X.AnyPropertyType)
+    if prop and prop.value:
+        return prop.value[0]
+
+def try_with_sleep(fn):
+    def wrapper(*args, **kwargs):
+        count = 0
+        while True:
+            try:
+                return fn(*args, **kwargs)
+            except:
+                if count > 5:
+                    print("Failed finally")
+                    raise
+                print("Failed, will retry")
+                time.sleep(1)
+                count += 1
+    return wrapper
+
+@try_with_sleep
+def focus_xfdesktop():
+    print("Focusing xfdesktop")
+    subprocess.check_output([
+        'xdotool',
+        'search',
+        '--onlyvisible',
+        '--class', 'xfdesktop',
+        'windowfocus',
+    ])
+
+if __name__ == '__main__':
+    main()