backends/x11: Drop handling of XI_DeviceChange

Even though it's great that XI2 has an event to notify about device
changes, this is something we can let the MetaBackend code handle
consistently for all backends, since looking for the source device
works everywhere.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/285>

1 files changed, 1 insertions, 28 deletions

diff --git a/src/backends/x11/meta-backend-x11.c b/src/backends/x11/meta-backend-x11.c
index d2bbab45e..263d7d468 100644
--- a/src/backends/x11/meta-backend-x11.c
+++ b/src/backends/x11/meta-backend-x11.c
@@ -249,30 +249,6 @@ translate_crossing_event (MetaBackendX11 *x11,
   meta_backend_x11_translate_crossing_event (x11, enter_event);
 }
 
-static void
-handle_device_change (MetaBackendX11 *x11,
-                      XIEvent        *event)
-{
-  XIDeviceChangedEvent *device_changed;
-  ClutterInputDevice *device;
-  ClutterBackend *backend;
-  ClutterSeat *seat;
-
-  if (event->evtype != XI_DeviceChanged)
-    return;
-
-  device_changed = (XIDeviceChangedEvent *) event;
-
-  if (device_changed->reason != XISlaveSwitch)
-    return;
-
-  backend = meta_backend_get_clutter_backend (META_BACKEND (x11));
-  seat = clutter_backend_get_default_seat (backend);
-  device = meta_seat_x11_lookup_device_id (META_SEAT_X11 (seat),
-                                           device_changed->sourceid);
-  meta_backend_update_last_device (META_BACKEND (x11), device);
-}
-
 /* Clutter makes the assumption that there is only one X window
  * per stage, which is a valid assumption to make for a generic
  * application toolkit. As such, it will ignore any events sent
@@ -321,10 +297,7 @@ handle_input_event (MetaBackendX11 *x11,
     {
       XIEvent *input_event = (XIEvent *) event->xcookie.data;
 
-      if (input_event->evtype == XI_DeviceChanged)
-        handle_device_change (x11, input_event);
-      else
-        maybe_spoof_event_as_stage_event (x11, input_event);
+      maybe_spoof_event_as_stage_event (x11, input_event);
     }
 }