[mutter/wip/carlosg/input-thread: 129/130] backends/native: Add a bunch of "_in_impl" suffixes to functions




commit 55d7d61adeb4bc080cfc3e86b47db042e7de6dca
Author: Carlos Garnacho <carlosg gnome org>
Date:   Fri Nov 20 01:36:19 2020 +0100

    backends/native: Add a bunch of "_in_impl" suffixes to functions
    
    They're a dime a dozen. If it gets called exclusively from the
    input thread, it got one. Hopefully these breadcrumbs will be
    enough so people don't lose their way here.

 src/backends/native/meta-barrier-native.c          |  10 +-
 src/backends/native/meta-barrier-native.h          |  10 +-
 src/backends/native/meta-input-device-native.c     |  84 ++---
 src/backends/native/meta-input-device-native.h     |  52 +--
 .../native/meta-input-device-tool-native.c         |  18 +-
 .../native/meta-input-device-tool-native.h         |  20 +-
 src/backends/native/meta-input-settings-native.c   |  26 +-
 src/backends/native/meta-input-settings-native.h   |   2 +-
 src/backends/native/meta-keymap-native.c           |  10 +-
 src/backends/native/meta-keymap-native.h           |   8 +-
 src/backends/native/meta-launcher.c                |  16 +-
 src/backends/native/meta-seat-impl.c               | 405 +++++++++++----------
 src/backends/native/meta-seat-impl.h               | 150 ++++----
 .../native/meta-virtual-input-device-native.c      | 271 +++++++-------
 14 files changed, 545 insertions(+), 537 deletions(-)
---
diff --git a/src/backends/native/meta-barrier-native.c b/src/backends/native/meta-barrier-native.c
index d6267ceacd..bc0620ae9d 100644
--- a/src/backends/native/meta-barrier-native.c
+++ b/src/backends/native/meta-barrier-native.c
@@ -500,11 +500,11 @@ clamp_to_barrier (MetaBarrierImplNative *self,
 }
 
 void
-meta_barrier_manager_native_process (MetaBarrierManagerNative *manager,
-                                     ClutterInputDevice       *device,
-                                     guint32                   time,
-                                     float                    *x,
-                                     float                    *y)
+meta_barrier_manager_native_process_in_impl (MetaBarrierManagerNative *manager,
+                                             ClutterInputDevice       *device,
+                                             guint32                   time,
+                                             float                    *x,
+                                             float                    *y)
 {
   graphene_point_t prev_pos;
   float prev_x;
diff --git a/src/backends/native/meta-barrier-native.h b/src/backends/native/meta-barrier-native.h
index 2853cfa80d..1bcf56c7c7 100644
--- a/src/backends/native/meta-barrier-native.h
+++ b/src/backends/native/meta-barrier-native.h
@@ -41,11 +41,11 @@ typedef struct _MetaBarrierManagerNative     MetaBarrierManagerNative;
 MetaBarrierImpl *meta_barrier_impl_native_new (MetaBarrier *barrier);
 
 MetaBarrierManagerNative *meta_barrier_manager_native_new (void);
-void meta_barrier_manager_native_process (MetaBarrierManagerNative *manager,
-                                          ClutterInputDevice       *device,
-                                          guint32                   time,
-                                          float                    *x,
-                                          float                    *y);
+void meta_barrier_manager_native_process_in_impl (MetaBarrierManagerNative *manager,
+                                                  ClutterInputDevice       *device,
+                                                  guint32                   time,
+                                                  float                    *x,
+                                                  float                    *y);
 
 G_END_DECLS
 
diff --git a/src/backends/native/meta-input-device-native.c b/src/backends/native/meta-input-device-native.c
index 0e0cbf2bc4..16fd27b653 100644
--- a/src/backends/native/meta-input-device-native.c
+++ b/src/backends/native/meta-input-device-native.c
@@ -199,7 +199,7 @@ meta_input_device_native_get_pad_feature_group (ClutterInputDevice           *de
 static void
 meta_input_device_native_bell_notify (MetaInputDeviceNative *device)
 {
-  meta_seat_impl_notify_bell (device->seat_impl);
+  meta_seat_impl_notify_bell_in_impl (device->seat_impl);
 }
 
 static void
@@ -420,9 +420,9 @@ key_event_is_modifier (ClutterEvent *event)
 static void
 notify_stickykeys_mask (MetaInputDeviceNative *device)
 {
-  meta_seat_impl_notify_kbd_a11y_mods_state_changed (device->seat_impl,
-                                                     device->stickykeys_latched_mask,
-                                                     device->stickykeys_locked_mask);
+  meta_seat_impl_notify_kbd_a11y_mods_state_changed_in_impl (device->seat_impl,
+                                                             device->stickykeys_latched_mask,
+                                                             device->stickykeys_locked_mask);
 }
 
 static void
@@ -439,7 +439,7 @@ update_internal_xkb_state (MetaInputDeviceNative *device,
 
   g_rw_lock_writer_lock (&seat_impl->state_lock);
 
-  xkb_state = meta_seat_impl_get_xkb_state (seat_impl);
+  xkb_state = meta_seat_impl_get_xkb_state_in_impl (seat_impl);
   depressed_mods = xkb_state_serialize_mods (xkb_state, XKB_STATE_MODS_DEPRESSED);
   latched_mods = xkb_state_serialize_mods (xkb_state, XKB_STATE_MODS_LATCHED);
   locked_mods = xkb_state_serialize_mods (xkb_state, XKB_STATE_MODS_LOCKED);
@@ -479,7 +479,7 @@ update_stickykeys_event (ClutterEvent          *event,
 
   update_internal_xkb_state (device, new_latched_mask, new_locked_mask);
 
-  xkb_state = meta_seat_impl_get_xkb_state (seat_impl);
+  xkb_state = meta_seat_impl_get_xkb_state_in_impl (seat_impl);
   effective_mods = xkb_state_serialize_mods (xkb_state, XKB_STATE_MODS_EFFECTIVE);
   latched_mods = xkb_state_serialize_mods (xkb_state, XKB_STATE_MODS_LATCHED);
   locked_mods = xkb_state_serialize_mods (xkb_state, XKB_STATE_MODS_LOCKED);
@@ -499,9 +499,9 @@ notify_stickykeys_change (MetaInputDeviceNative *device)
   device->stickykeys_depressed_mask = 0;
   update_internal_xkb_state (device, 0, 0);
 
-  meta_seat_impl_notify_kbd_a11y_flags_changed (device->seat_impl,
-                                                device->a11y_flags,
-                                                META_A11Y_STICKY_KEYS_ENABLED);
+  meta_seat_impl_notify_kbd_a11y_flags_changed_in_impl (device->seat_impl,
+                                                        device->a11y_flags,
+                                                        META_A11Y_STICKY_KEYS_ENABLED);
 }
 
 static void
@@ -531,9 +531,9 @@ set_slowkeys_off (MetaInputDeviceNative *device)
 {
   device->a11y_flags &= ~META_A11Y_SLOW_KEYS_ENABLED;
 
-  meta_seat_impl_notify_kbd_a11y_flags_changed (device->seat_impl,
-                                                device->a11y_flags,
-                                                META_A11Y_SLOW_KEYS_ENABLED);
+  meta_seat_impl_notify_kbd_a11y_flags_changed_in_impl (device->seat_impl,
+                                                        device->a11y_flags,
+                                                        META_A11Y_SLOW_KEYS_ENABLED);
 }
 
 static void
@@ -541,9 +541,9 @@ set_slowkeys_on (MetaInputDeviceNative *device)
 {
   device->a11y_flags |= META_A11Y_SLOW_KEYS_ENABLED;
 
-  meta_seat_impl_notify_kbd_a11y_flags_changed (device->seat_impl,
-                                                device->a11y_flags,
-                                                META_A11Y_SLOW_KEYS_ENABLED);
+  meta_seat_impl_notify_kbd_a11y_flags_changed_in_impl (device->seat_impl,
+                                                        device->a11y_flags,
+                                                        META_A11Y_SLOW_KEYS_ENABLED);
 }
 
 static void
@@ -566,7 +566,7 @@ handle_stickykeys_press (ClutterEvent          *event,
       return;
     }
 
-  xkb_state = meta_seat_impl_get_xkb_state (seat_impl);
+  xkb_state = meta_seat_impl_get_xkb_state_in_impl (seat_impl);
   depressed_mods = xkb_state_serialize_mods (xkb_state, XKB_STATE_MODS_DEPRESSED);
   /* Ignore the lock modifier mask, that one cannot be sticky, yet the
    * CAPS_LOCK key itself counts as a modifier as it might be remapped
@@ -603,7 +603,7 @@ handle_stickykeys_release (ClutterEvent          *event,
   MetaSeatImpl *seat_impl = device->seat_impl;
   struct xkb_state *xkb_state;
 
-  xkb_state = meta_seat_impl_get_xkb_state (seat_impl);
+  xkb_state = meta_seat_impl_get_xkb_state_in_impl (seat_impl);
   device->stickykeys_depressed_mask =
     xkb_state_serialize_mods (xkb_state, XKB_STATE_MODS_DEPRESSED);
 
@@ -847,7 +847,7 @@ is_numlock_active (MetaInputDeviceNative *device)
   MetaSeatImpl *seat_impl = device->seat_impl;
   struct xkb_state *xkb_state;
 
-  xkb_state = meta_seat_impl_get_xkb_state (seat_impl);
+  xkb_state = meta_seat_impl_get_xkb_state_in_impl (seat_impl);
 
   return xkb_state_mod_name_is_active (xkb_state,
                                        "Mod2",
@@ -1127,8 +1127,8 @@ handle_mousekeys_release (ClutterEvent          *event,
 }
 
 gboolean
-meta_input_device_native_process_kbd_a11y_event (ClutterInputDevice *device,
-                                                 ClutterEvent       *event)
+meta_input_device_native_process_kbd_a11y_event_in_impl (ClutterInputDevice *device,
+                                                         ClutterEvent       *event)
 {
   MetaInputDeviceNative *device_evdev = META_INPUT_DEVICE_NATIVE (device);
 
@@ -1184,8 +1184,8 @@ meta_input_device_native_process_kbd_a11y_event (ClutterInputDevice *device,
 }
 
 void
-meta_input_device_native_apply_kbd_a11y_settings (MetaInputDeviceNative *device,
-                                                  MetaKbdA11ySettings   *settings)
+meta_input_device_native_apply_kbd_a11y_settings_in_impl (MetaInputDeviceNative *device,
+                                                          MetaKbdA11ySettings   *settings)
 {
   MetaKeyboardA11yFlags changed_flags = (device->a11y_flags ^ settings->controls);
 
@@ -1223,7 +1223,7 @@ meta_input_device_native_apply_kbd_a11y_settings (MetaInputDeviceNative *device,
 }
 
 void
-meta_input_device_native_a11y_maybe_notify_toggle_keys (MetaInputDeviceNative *device)
+meta_input_device_native_a11y_maybe_notify_toggle_keys_in_impl (MetaInputDeviceNative *device)
 {
   if (device->a11y_flags & META_A11Y_TOGGLE_KEYS_ENABLED)
     meta_input_device_native_bell_notify (device);
@@ -1278,8 +1278,8 @@ meta_input_device_native_init (MetaInputDeviceNative *self)
  * it with the provided seat.
  */
 ClutterInputDevice *
-meta_input_device_native_new (MetaSeatImpl           *seat_impl,
-                              struct libinput_device *libinput_device)
+meta_input_device_native_new_in_impl (MetaSeatImpl           *seat_impl,
+                                      struct libinput_device *libinput_device)
 {
   MetaInputDeviceNative *device;
   ClutterInputDeviceType type;
@@ -1288,7 +1288,7 @@ meta_input_device_native_new (MetaSeatImpl           *seat_impl,
   char *node_path;
   double width, height;
 
-  type = meta_input_device_native_determine_type (libinput_device);
+  type = meta_input_device_native_determine_type_in_impl (libinput_device);
   vendor = g_strdup_printf ("%.4x", libinput_device_get_id_vendor (libinput_device));
   product = g_strdup_printf ("%.4x", libinput_device_get_id_product (libinput_device));
   node_path = g_strdup_printf ("/dev/input/%s", libinput_device_get_sysname (libinput_device));
@@ -1381,8 +1381,8 @@ meta_input_device_native_get_seat_impl (MetaInputDeviceNative *device)
 }
 
 void
-meta_input_device_native_update_leds (MetaInputDeviceNative *device,
-                                      enum libinput_led      leds)
+meta_input_device_native_update_leds_in_impl (MetaInputDeviceNative *device,
+                                              enum libinput_led      leds)
 {
   if (!device->libinput_device)
     return;
@@ -1391,7 +1391,7 @@ meta_input_device_native_update_leds (MetaInputDeviceNative *device,
 }
 
 ClutterInputDeviceType
-meta_input_device_native_determine_type (struct libinput_device *ldev)
+meta_input_device_native_determine_type_in_impl (struct libinput_device *ldev)
 {
   /* This setting is specific to touchpads and alike, only in these
    * devices there is this additional layer of touch event interpretation.
@@ -1436,10 +1436,10 @@ meta_input_device_native_get_libinput_device (ClutterInputDevice *device)
 }
 
 void
-meta_input_device_native_translate_coordinates (ClutterInputDevice *device,
-                                                MetaViewportInfo   *viewports,
-                                                float              *x,
-                                                float              *y)
+meta_input_device_native_translate_coordinates_in_impl (ClutterInputDevice *device,
+                                                        MetaViewportInfo   *viewports,
+                                                        float              *x,
+                                                        float              *y)
 {
   MetaInputDeviceNative *device_evdev = META_INPUT_DEVICE_NATIVE (device);
   double min_x = 0, min_y = 0, max_x = 1, max_y = 1;
@@ -1471,7 +1471,7 @@ meta_input_device_native_translate_coordinates (ClutterInputDevice *device,
 }
 
 MetaInputDeviceMapping
-meta_input_device_native_get_mapping_mode (ClutterInputDevice *device)
+meta_input_device_native_get_mapping_mode_in_impl (ClutterInputDevice *device)
 {
   MetaInputDeviceNative *device_native = META_INPUT_DEVICE_NATIVE (device);
   ClutterInputDeviceType device_type;
@@ -1489,8 +1489,8 @@ meta_input_device_native_get_mapping_mode (ClutterInputDevice *device)
 }
 
 void
-meta_input_device_native_set_mapping_mode (ClutterInputDevice     *device,
-                                           MetaInputDeviceMapping  mapping)
+meta_input_device_native_set_mapping_mode_in_impl (ClutterInputDevice     *device,
+                                                   MetaInputDeviceMapping  mapping)
 {
   MetaInputDeviceNative *device_native = META_INPUT_DEVICE_NATIVE (device);
   ClutterInputDeviceType device_type;
@@ -1506,18 +1506,18 @@ meta_input_device_native_set_mapping_mode (ClutterInputDevice     *device,
 }
 
 void
-meta_input_device_native_set_coords (MetaInputDeviceNative *device_native,
-                                     float                  x,
-                                     float                  y)
+meta_input_device_native_set_coords_in_impl (MetaInputDeviceNative *device_native,
+                                             float                  x,
+                                             float                  y)
 {
   device_native->pointer_x = x;
   device_native->pointer_y = y;
 }
 
 void
-meta_input_device_native_get_coords (MetaInputDeviceNative *device_native,
-                                     float                 *x,
-                                     float                 *y)
+meta_input_device_native_get_coords_in_impl (MetaInputDeviceNative *device_native,
+                                             float                 *x,
+                                             float                 *y)
 {
   if (x)
     *x = device_native->pointer_x;
diff --git a/src/backends/native/meta-input-device-native.h b/src/backends/native/meta-input-device-native.h
index 4e6625015e..38fc2a0845 100644
--- a/src/backends/native/meta-input-device-native.h
+++ b/src/backends/native/meta-input-device-native.h
@@ -111,44 +111,44 @@ struct _MetaInputDeviceNativeClass
 
 GType                     meta_input_device_native_get_type        (void) G_GNUC_CONST;
 
-ClutterInputDevice *      meta_input_device_native_new             (MetaSeatImpl            *seat_impl,
+ClutterInputDevice *      meta_input_device_native_new_in_impl     (MetaSeatImpl            *seat_impl,
                                                                     struct libinput_device  
*libinput_device);
 
-ClutterInputDevice *      meta_input_device_native_new_virtual     (MetaSeatImpl            *seat_impl,
-                                                                    ClutterInputDeviceType   type,
-                                                                    ClutterInputMode         mode);
+ClutterInputDevice *      meta_input_device_native_new_virtual (MetaSeatImpl            *seat_impl,
+                                                                ClutterInputDeviceType   type,
+                                                                ClutterInputMode         mode);
 
-MetaSeatImpl *            meta_input_device_native_get_seat_impl   (MetaInputDeviceNative   *device);
+MetaSeatImpl *            meta_input_device_native_get_seat_impl (MetaInputDeviceNative   *device);
 
-void                      meta_input_device_native_update_leds     (MetaInputDeviceNative   *device,
-                                                                    enum libinput_led        leds);
+void                      meta_input_device_native_update_leds_in_impl (MetaInputDeviceNative   *device,
+                                                                        enum libinput_led        leds);
 
-ClutterInputDeviceType    meta_input_device_native_determine_type  (struct libinput_device  
*libinput_device);
+ClutterInputDeviceType    meta_input_device_native_determine_type_in_impl  (struct libinput_device  
*libinput_device);
 
 
-void                      meta_input_device_native_translate_coordinates (ClutterInputDevice *device,
-                                                                          MetaViewportInfo   *viewports,
-                                                                          float              *x,
-                                                                          float              *y);
+void                      meta_input_device_native_translate_coordinates_in_impl (ClutterInputDevice *device,
+                                                                                  MetaViewportInfo   
*viewports,
+                                                                                  float              *x,
+                                                                                  float              *y);
 
-MetaInputDeviceMapping    meta_input_device_native_get_mapping_mode (ClutterInputDevice     *device);
-void                      meta_input_device_native_set_mapping_mode (ClutterInputDevice     *device,
-                                                                     MetaInputDeviceMapping  mapping);
+MetaInputDeviceMapping    meta_input_device_native_get_mapping_mode_in_impl (ClutterInputDevice     *device);
+void                      meta_input_device_native_set_mapping_mode_in_impl (ClutterInputDevice     *device,
+                                                                             MetaInputDeviceMapping  
mapping);
 
-void                      meta_input_device_native_apply_kbd_a11y_settings (MetaInputDeviceNative *device,
-                                                                            MetaKbdA11ySettings   *settings);
+void                      meta_input_device_native_apply_kbd_a11y_settings_in_impl (MetaInputDeviceNative 
*device,
+                                                                                    MetaKbdA11ySettings   
*settings);
 
-void                      meta_input_device_native_a11y_maybe_notify_toggle_keys  (MetaInputDeviceNative 
*device_evdev);
+void                      meta_input_device_native_a11y_maybe_notify_toggle_keys_in_impl 
(MetaInputDeviceNative *device_evdev);
 
 struct libinput_device * meta_input_device_native_get_libinput_device (ClutterInputDevice *device);
 
-void                     meta_input_device_native_set_coords (MetaInputDeviceNative *device_native,
-                                                              float                  x,
-                                                              float                  y);
-void                     meta_input_device_native_get_coords (MetaInputDeviceNative *device_native,
-                                                              float                 *x,
-                                                              float                 *y);
-gboolean                 meta_input_device_native_process_kbd_a11y_event (ClutterInputDevice *device,
-                                                                          ClutterEvent       *event);
+void                     meta_input_device_native_set_coords_in_impl (MetaInputDeviceNative *device_native,
+                                                                      float                  x,
+                                                                      float                  y);
+void                     meta_input_device_native_get_coords_in_impl (MetaInputDeviceNative *device_native,
+                                                                      float                 *x,
+                                                                      float                 *y);
+gboolean                 meta_input_device_native_process_kbd_a11y_event_in_impl (ClutterInputDevice *device,
+                                                                                  ClutterEvent       *event);
 
 #endif /* META_INPUT_DEVICE_NATIVE_H */
diff --git a/src/backends/native/meta-input-device-tool-native.c 
b/src/backends/native/meta-input-device-tool-native.c
index dc47b81a73..ad6a3bdb6a 100644
--- a/src/backends/native/meta-input-device-tool-native.c
+++ b/src/backends/native/meta-input-device-tool-native.c
@@ -90,8 +90,8 @@ meta_input_device_tool_native_new (struct libinput_tablet_tool *tool,
 }
 
 void
-meta_input_device_tool_native_set_pressure_curve (ClutterInputDeviceTool *tool,
-                                                  double                  curve[4])
+meta_input_device_tool_native_set_pressure_curve_in_impl (ClutterInputDeviceTool *tool,
+                                                          double                  curve[4])
 {
   MetaInputDeviceToolNative *evdev_tool;
 
@@ -109,9 +109,9 @@ meta_input_device_tool_native_set_pressure_curve (ClutterInputDeviceTool *tool,
 }
 
 void
-meta_input_device_tool_native_set_button_code (ClutterInputDeviceTool *tool,
-                                               uint32_t                button,
-                                               uint32_t                evcode)
+meta_input_device_tool_native_set_button_code_in_impl (ClutterInputDeviceTool *tool,
+                                                       uint32_t                button,
+                                                       uint32_t                evcode)
 {
   MetaInputDeviceToolNative *evdev_tool;
 
@@ -152,8 +152,8 @@ calculate_bezier_position (double pos,
 }
 
 double
-meta_input_device_tool_native_translate_pressure (ClutterInputDeviceTool *tool,
-                                                  double                  pressure)
+meta_input_device_tool_native_translate_pressure_in_impl (ClutterInputDeviceTool *tool,
+                                                          double                  pressure)
 {
   MetaInputDeviceToolNative *evdev_tool;
 
@@ -169,8 +169,8 @@ meta_input_device_tool_native_translate_pressure (ClutterInputDeviceTool *tool,
 }
 
 uint32_t
-meta_input_device_tool_native_get_button_code (ClutterInputDeviceTool *tool,
-                                               uint32_t                button)
+meta_input_device_tool_native_get_button_code_in_impl (ClutterInputDeviceTool *tool,
+                                                       uint32_t                button)
 {
   MetaInputDeviceToolNative *evdev_tool;
 
diff --git a/src/backends/native/meta-input-device-tool-native.h 
b/src/backends/native/meta-input-device-tool-native.h
index 83e79930a8..3eff6261c7 100644
--- a/src/backends/native/meta-input-device-tool-native.h
+++ b/src/backends/native/meta-input-device-tool-native.h
@@ -70,16 +70,16 @@ ClutterInputDeviceTool * meta_input_device_tool_native_new      (struct libinput
                                                                  uint64_t                     serial,
                                                                  ClutterInputDeviceToolType   type);
 
-gdouble                  meta_input_device_tool_native_translate_pressure (ClutterInputDeviceTool *tool,
-                                                                           double                  pressure);
-uint32_t                 meta_input_device_tool_native_get_button_code    (ClutterInputDeviceTool *tool,
-                                                                           uint32_t                button);
-
-void                     meta_input_device_tool_native_set_pressure_curve (ClutterInputDeviceTool *tool,
-                                                                           double                  curve[4]);
-void                     meta_input_device_tool_native_set_button_code    (ClutterInputDeviceTool *tool,
-                                                                           uint32_t                button,
-                                                                           uint32_t                evcode);
+gdouble                  meta_input_device_tool_native_translate_pressure_in_impl (ClutterInputDeviceTool 
*tool,
+                                                                                   double                  
pressure);
+uint32_t                 meta_input_device_tool_native_get_button_code_in_impl (ClutterInputDeviceTool *tool,
+                                                                                uint32_t                
button);
+
+void                     meta_input_device_tool_native_set_pressure_curve_in_impl (ClutterInputDeviceTool 
*tool,
+                                                                                   double                  
curve[4]);
+void                     meta_input_device_tool_native_set_button_code_in_impl (ClutterInputDeviceTool *tool,
+                                                                                uint32_t                
button,
+                                                                                uint32_t                
evcode);
 
 G_END_DECLS
 
diff --git a/src/backends/native/meta-input-settings-native.c 
b/src/backends/native/meta-input-settings-native.c
index 754c01a0f1..becf557db5 100644
--- a/src/backends/native/meta-input-settings-native.c
+++ b/src/backends/native/meta-input-settings-native.c
@@ -157,7 +157,7 @@ meta_input_settings_native_set_matrix (MetaInputSettings  *settings,
 
   if (clutter_input_device_get_device_type (device) ==
       CLUTTER_TOUCHSCREEN_DEVICE ||
-      meta_input_device_native_get_mapping_mode (device) ==
+      meta_input_device_native_get_mapping_mode_in_impl (device) ==
       META_INPUT_DEVICE_MAPPING_ABSOLUTE)
     {
       cairo_matrix_init (dev_matrix, matrix[0], matrix[3], matrix[1],
@@ -504,8 +504,8 @@ meta_input_settings_native_set_keyboard_repeat (MetaInputSettings *settings,
   MetaInputSettingsNative *input_settings_native;
 
   input_settings_native = META_INPUT_SETTINGS_NATIVE (settings);
-  meta_seat_impl_set_keyboard_repeat (input_settings_native->seat_impl,
-                                      enabled, delay, interval);
+  meta_seat_impl_set_keyboard_repeat_in_impl (input_settings_native->seat_impl,
+                                              enabled, delay, interval);
 }
 
 static void
@@ -636,7 +636,7 @@ meta_input_settings_native_set_tablet_mapping (MetaInputSettings     *settings,
   else
     return;
 
-  meta_input_device_native_set_mapping_mode (device, dev_mapping);
+  meta_input_device_native_set_mapping_mode_in_impl (device, dev_mapping);
 }
 
 static gboolean
@@ -660,7 +660,7 @@ meta_input_settings_native_set_tablet_aspect_ratio (MetaInputSettings  *settings
   MetaInputSettingsNative *input_settings_native;
   GTask *task;
 
-  if (meta_input_device_native_get_mapping_mode (device) ==
+  if (meta_input_device_native_get_mapping_mode_in_impl (device) ==
       META_INPUT_DEVICE_MAPPING_RELATIVE)
     aspect_ratio = 0;
 
@@ -718,7 +718,7 @@ meta_input_settings_native_set_stylus_pressure (MetaInputSettings      *settings
   pressure_curve[2] = (gdouble) curve[2] / 100;
   pressure_curve[3] = (gdouble) curve[3] / 100;
 
-  meta_input_device_tool_native_set_pressure_curve (tool, pressure_curve);
+  meta_input_device_tool_native_set_pressure_curve_in_impl (tool, pressure_curve);
 }
 
 static guint
@@ -748,12 +748,12 @@ meta_input_settings_native_set_stylus_button_map (MetaInputSettings          *se
                                                   GDesktopStylusButtonAction  secondary,
                                                   GDesktopStylusButtonAction  tertiary)
 {
-  meta_input_device_tool_native_set_button_code (tool, CLUTTER_BUTTON_MIDDLE,
-                                                 action_to_evcode (primary));
-  meta_input_device_tool_native_set_button_code (tool, CLUTTER_BUTTON_SECONDARY,
-                                                 action_to_evcode (secondary));
-  meta_input_device_tool_native_set_button_code (tool, 8, /* Back */
-                                                 action_to_evcode (tertiary));
+  meta_input_device_tool_native_set_button_code_in_impl (tool, CLUTTER_BUTTON_MIDDLE,
+                                                         action_to_evcode (primary));
+  meta_input_device_tool_native_set_button_code_in_impl (tool, CLUTTER_BUTTON_SECONDARY,
+                                                         action_to_evcode (secondary));
+  meta_input_device_tool_native_set_button_code_in_impl (tool, 8, /* Back */
+                                                         action_to_evcode (tertiary));
 }
 
 static void
@@ -870,7 +870,7 @@ meta_input_settings_native_init (MetaInputSettingsNative *settings)
 }
 
 MetaInputSettings *
-meta_input_settings_native_new (MetaSeatImpl *seat_impl)
+meta_input_settings_native_new_in_impl (MetaSeatImpl *seat_impl)
 {
   return g_object_new (META_TYPE_INPUT_SETTINGS_NATIVE,
                        "seat-impl", seat_impl,
diff --git a/src/backends/native/meta-input-settings-native.h 
b/src/backends/native/meta-input-settings-native.h
index dece62aaa0..43926fd5fd 100644
--- a/src/backends/native/meta-input-settings-native.h
+++ b/src/backends/native/meta-input-settings-native.h
@@ -47,6 +47,6 @@ struct _MetaInputSettingsNativeClass
 
 GType meta_input_settings_native_get_type (void) G_GNUC_CONST;
 
-MetaInputSettings * meta_input_settings_native_new (MetaSeatImpl *seat_impl);
+MetaInputSettings * meta_input_settings_native_new_in_impl (MetaSeatImpl *seat_impl);
 
 #endif /* META_INPUT_SETTINGS_NATIVE_H */
diff --git a/src/backends/native/meta-keymap-native.c b/src/backends/native/meta-keymap-native.c
index 62f293c84c..1d637aaee8 100644
--- a/src/backends/native/meta-keymap-native.c
+++ b/src/backends/native/meta-keymap-native.c
@@ -90,8 +90,8 @@ meta_keymap_native_init (MetaKeymapNative *keymap)
 }
 
 void
-meta_keymap_native_set_keyboard_map (MetaKeymapNative  *keymap,
-                                     struct xkb_keymap *xkb_keymap)
+meta_keymap_native_set_keyboard_map_in_impl (MetaKeymapNative  *keymap,
+                                             struct xkb_keymap *xkb_keymap)
 {
   if (keymap->keymap)
     xkb_keymap_unref (keymap->keymap);
@@ -99,19 +99,19 @@ meta_keymap_native_set_keyboard_map (MetaKeymapNative  *keymap,
 }
 
 struct xkb_keymap *
-meta_keymap_native_get_keyboard_map (MetaKeymapNative *keymap)
+meta_keymap_native_get_keyboard_map_in_impl (MetaKeymapNative *keymap)
 {
   return keymap->keymap;
 }
 
 void
-meta_keymap_native_update (MetaKeymapNative *keymap)
+meta_keymap_native_update_in_impl (MetaKeymapNative *keymap)
 {
   struct xkb_state *xkb_state;
   ClutterSeat *seat;
 
   seat = clutter_backend_get_default_seat (clutter_get_default_backend ());
-  xkb_state = meta_seat_impl_get_xkb_state (META_SEAT_NATIVE (seat)->impl);
+  xkb_state = meta_seat_impl_get_xkb_state_in_impl (META_SEAT_NATIVE (seat)->impl);
 
   keymap->num_lock =
     xkb_state_mod_name_is_active (xkb_state,
diff --git a/src/backends/native/meta-keymap-native.h b/src/backends/native/meta-keymap-native.h
index 8b276df5d6..49da0775d0 100644
--- a/src/backends/native/meta-keymap-native.h
+++ b/src/backends/native/meta-keymap-native.h
@@ -29,9 +29,9 @@ G_DECLARE_FINAL_TYPE (MetaKeymapNative, meta_keymap_native,
                       META, KEYMAP_NATIVE,
                       ClutterKeymap)
 
-void                meta_keymap_native_set_keyboard_map (MetaKeymapNative  *keymap,
-                                                         struct xkb_keymap *xkb_keymap);
-struct xkb_keymap * meta_keymap_native_get_keyboard_map (MetaKeymapNative *keymap);
-void                meta_keymap_native_update           (MetaKeymapNative *keymap);
+void meta_keymap_native_set_keyboard_map_in_impl (MetaKeymapNative  *keymap,
+                                                  struct xkb_keymap *xkb_keymap);
+struct xkb_keymap * meta_keymap_native_get_keyboard_map_in_impl (MetaKeymapNative *keymap);
+void meta_keymap_native_update_in_impl (MetaKeymapNative *keymap);
 
 #endif /* META_KEYMAP_NATIVE_H */
diff --git a/src/backends/native/meta-launcher.c b/src/backends/native/meta-launcher.c
index 3f20fbc74c..0fa7e1832d 100644
--- a/src/backends/native/meta-launcher.c
+++ b/src/backends/native/meta-launcher.c
@@ -385,10 +385,10 @@ out:
 }
 
 static int
-on_evdev_device_open (const char  *path,
-                      int          flags,
-                      gpointer     user_data,
-                      GError     **error)
+on_evdev_device_open_in_impl (const char  *path,
+                              int          flags,
+                              gpointer     user_data,
+                              GError     **error)
 {
   MetaLauncher *self = user_data;
 
@@ -420,8 +420,8 @@ on_evdev_device_open (const char  *path,
 }
 
 static void
-on_evdev_device_close (int      fd,
-                       gpointer user_data)
+on_evdev_device_close_in_impl (int      fd,
+                               gpointer user_data)
 {
   MetaLauncher *self = user_data;
 
@@ -530,8 +530,8 @@ meta_launcher_new (GError **error)
 
   meta_clutter_backend_native_set_seat_id (self->seat_id);
 
-  meta_seat_impl_set_device_callbacks (on_evdev_device_open,
-                                       on_evdev_device_close,
+  meta_seat_impl_set_device_callbacks (on_evdev_device_open_in_impl,
+                                       on_evdev_device_close_in_impl,
                                        self);
 
   g_signal_connect (self->session_proxy, "notify::active", G_CALLBACK (on_active_changed), self);
diff --git a/src/backends/native/meta-seat-impl.c b/src/backends/native/meta-seat-impl.c
index 2e459edc80..578337fa69 100644
--- a/src/backends/native/meta-seat-impl.c
+++ b/src/backends/native/meta-seat-impl.c
@@ -159,7 +159,7 @@ meta_seat_impl_run_input_task (MetaSeatImpl *seat_impl,
 }
 
 void
-meta_seat_impl_sync_leds (MetaSeatImpl *seat_impl)
+meta_seat_impl_sync_leds_in_impl (MetaSeatImpl *seat_impl)
 {
   GSList *iter;
   MetaInputDeviceNative *device_native;
@@ -183,13 +183,13 @@ meta_seat_impl_sync_leds (MetaSeatImpl *seat_impl)
   for (iter = seat_impl->devices; iter; iter = iter->next)
     {
       device_native = iter->data;
-      meta_input_device_native_update_leds (device_native, leds);
+      meta_input_device_native_update_leds_in_impl (device_native, leds);
     }
 }
 
 MetaTouchState *
-meta_seat_impl_lookup_touch_state (MetaSeatImpl *seat_impl,
-                                   int           seat_slot)
+meta_seat_impl_lookup_touch_state_in_impl (MetaSeatImpl *seat_impl,
+                                           int           seat_slot)
 {
   if (!seat_impl->touch_states)
     return NULL;
@@ -205,8 +205,8 @@ meta_touch_state_free (MetaTouchState *state)
 }
 
 MetaTouchState *
-meta_seat_impl_acquire_touch_state (MetaSeatImpl *seat_impl,
-                                    int           seat_slot)
+meta_seat_impl_acquire_touch_state_in_impl (MetaSeatImpl *seat_impl,
+                                            int           seat_slot)
 {
   MetaTouchState *touch_state;
 
@@ -233,8 +233,8 @@ meta_seat_impl_acquire_touch_state (MetaSeatImpl *seat_impl,
 }
 
 void
-meta_seat_impl_release_touch_state (MetaSeatImpl *seat_impl,
-                                    int           seat_slot)
+meta_seat_impl_release_touch_state_in_impl (MetaSeatImpl *seat_impl,
+                                            int           seat_slot)
 {
   if (!seat_impl->touch_states)
     return;
@@ -271,12 +271,12 @@ keyboard_repeat (gpointer data)
 
   g_return_val_if_fail (seat_impl->repeat_device != NULL, G_SOURCE_REMOVE);
 
-  meta_seat_impl_notify_key (seat_impl,
-                             seat_impl->repeat_device,
-                             g_source_get_time (seat_impl->repeat_source),
-                             seat_impl->repeat_key,
-                             AUTOREPEAT_VALUE,
-                             FALSE);
+  meta_seat_impl_notify_key_in_impl (seat_impl,
+                                     seat_impl->repeat_device,
+                                     g_source_get_time (seat_impl->repeat_source),
+                                     seat_impl->repeat_key,
+                                     AUTOREPEAT_VALUE,
+                                     FALSE);
 
   return G_SOURCE_CONTINUE;
 }
@@ -372,12 +372,12 @@ emit_signal (MetaSeatImpl *seat_impl,
 }
 
 void
-meta_seat_impl_notify_key (MetaSeatImpl       *seat_impl,
-                           ClutterInputDevice *device,
-                           uint64_t            time_us,
-                           uint32_t            key,
-                           uint32_t            state,
-                           gboolean            update_keys)
+meta_seat_impl_notify_key_in_impl (MetaSeatImpl       *seat_impl,
+                                   ClutterInputDevice *device,
+                                   uint64_t            time_us,
+                                   uint32_t            key,
+                                   uint32_t            state,
+                                   gboolean            update_keys)
 {
   ClutterEvent *event = NULL;
   enum xkb_state_component changed_state;
@@ -419,8 +419,8 @@ meta_seat_impl_notify_key (MetaSeatImpl       *seat_impl,
       clutter_event_set_flags (event, CLUTTER_EVENT_FLAG_REPEATED);
     }
 
-  if (!meta_input_device_native_process_kbd_a11y_event (seat_impl->core_keyboard,
-                                                        event))
+  if (!meta_input_device_native_process_kbd_a11y_event_in_impl (seat_impl->core_keyboard,
+                                                                event))
     queue_event (seat_impl, event);
   else
     clutter_event_free (event);
@@ -430,9 +430,9 @@ meta_seat_impl_notify_key (MetaSeatImpl       *seat_impl,
       MetaInputDeviceNative *keyboard_native;
 
       emit_signal (seat_impl, signals[MODS_STATE_CHANGED], NULL, 0);
-      meta_seat_impl_sync_leds (seat_impl);
+      meta_seat_impl_sync_leds_in_impl (seat_impl);
       keyboard_native = META_INPUT_DEVICE_NATIVE (seat_impl->core_keyboard);
-      meta_input_device_native_a11y_maybe_notify_toggle_keys (keyboard_native);
+      meta_input_device_native_a11y_maybe_notify_toggle_keys_in_impl (keyboard_native);
     }
 
   if (state == 0 ||             /* key release */
@@ -509,10 +509,10 @@ new_absolute_motion_event (MetaSeatImpl       *seat_impl,
   /* This may happen early at startup */
   if (seat_impl->viewports)
     {
-      meta_input_device_native_translate_coordinates (input_device,
-                                                      seat_impl->viewports,
-                                                      &event->motion.x,
-                                                      &event->motion.y);
+      meta_input_device_native_translate_coordinates_in_impl (input_device,
+                                                              seat_impl->viewports,
+                                                              &event->motion.x,
+                                                              &event->motion.y);
     }
 
   event->motion.axes = axes;
@@ -528,14 +528,14 @@ new_absolute_motion_event (MetaSeatImpl       *seat_impl,
 
       clutter_event_set_device_tool (event, device_native->last_tool);
       clutter_event_set_device (event, input_device);
-      meta_input_device_native_set_coords (META_INPUT_DEVICE_NATIVE (input_device),
-                                           x, y);
+      meta_input_device_native_set_coords_in_impl (META_INPUT_DEVICE_NATIVE (input_device),
+                                                   x, y);
     }
   else
     {
       clutter_event_set_device (event, seat_impl->core_pointer);
-      meta_input_device_native_set_coords (META_INPUT_DEVICE_NATIVE (seat_impl->core_pointer),
-                                           x, y);
+      meta_input_device_native_set_coords_in_impl (META_INPUT_DEVICE_NATIVE (seat_impl->core_pointer),
+                                                   x, y);
     }
 
   if (clutter_input_device_get_device_type (input_device) != CLUTTER_TABLET_DEVICE)
@@ -550,13 +550,13 @@ new_absolute_motion_event (MetaSeatImpl       *seat_impl,
 }
 
 void
-meta_seat_impl_notify_relative_motion (MetaSeatImpl       *seat_impl,
-                                       ClutterInputDevice *input_device,
-                                       uint64_t            time_us,
-                                       float               dx,
-                                       float               dy,
-                                       float               dx_unaccel,
-                                       float               dy_unaccel)
+meta_seat_impl_notify_relative_motion_in_impl (MetaSeatImpl       *seat_impl,
+                                               ClutterInputDevice *input_device,
+                                               uint64_t            time_us,
+                                               float               dx,
+                                               float               dy,
+                                               float               dx_unaccel,
+                                               float               dy_unaccel)
 {
   float new_x, new_y;
   ClutterEvent *event;
@@ -581,12 +581,12 @@ meta_seat_impl_notify_relative_motion (MetaSeatImpl       *seat_impl,
 }
 
 void
-meta_seat_impl_notify_absolute_motion (MetaSeatImpl       *seat_impl,
-                                       ClutterInputDevice *input_device,
-                                       uint64_t            time_us,
-                                       float               x,
-                                       float               y,
-                                       double             *axes)
+meta_seat_impl_notify_absolute_motion_in_impl (MetaSeatImpl       *seat_impl,
+                                               ClutterInputDevice *input_device,
+                                               uint64_t            time_us,
+                                               float               x,
+                                               float               y,
+                                               double             *axes)
 {
   ClutterEvent *event;
 
@@ -596,11 +596,11 @@ meta_seat_impl_notify_absolute_motion (MetaSeatImpl       *seat_impl,
 }
 
 void
-meta_seat_impl_notify_button (MetaSeatImpl       *seat_impl,
-                              ClutterInputDevice *input_device,
-                              uint64_t            time_us,
-                              uint32_t            button,
-                              uint32_t            state)
+meta_seat_impl_notify_button_in_impl (MetaSeatImpl       *seat_impl,
+                                      ClutterInputDevice *input_device,
+                                      uint64_t            time_us,
+                                      uint32_t            button,
+                                      uint32_t            state)
 {
   MetaInputDeviceNative *device_native = (MetaInputDeviceNative *) input_device;
   ClutterEvent *event = NULL;
@@ -683,15 +683,15 @@ meta_seat_impl_notify_button (MetaSeatImpl       *seat_impl,
 
   if (clutter_input_device_get_device_type (input_device) == CLUTTER_TABLET_DEVICE)
     {
-      meta_input_device_native_get_coords (device_native,
-                                           &event->button.x,
-                                           &event->button.y);
+      meta_input_device_native_get_coords_in_impl (device_native,
+                                                   &event->button.x,
+                                                   &event->button.y);
     }
   else
     {
-      meta_input_device_native_get_coords (META_INPUT_DEVICE_NATIVE (seat_impl->core_pointer),
-                                           &event->button.x,
-                                           &event->button.y);
+      meta_input_device_native_get_coords_in_impl (META_INPUT_DEVICE_NATIVE (seat_impl->core_pointer),
+                                                   &event->button.x,
+                                                   &event->button.y);
     }
 
   clutter_event_set_device (event, seat_impl->core_pointer);
@@ -702,8 +702,8 @@ meta_seat_impl_notify_button (MetaSeatImpl       *seat_impl,
       /* Apply the button event code as per the tool mapping */
       uint32_t mapped_button;
 
-      mapped_button = meta_input_device_tool_native_get_button_code (device_native->last_tool,
-                                                                     button_nr);
+      mapped_button = meta_input_device_tool_native_get_button_code_in_impl (device_native->last_tool,
+                                                                             button_nr);
       if (mapped_button != 0)
         button = mapped_button;
     }
@@ -841,13 +841,13 @@ check_notify_discrete_scroll (MetaSeatImpl       *seat_impl,
 }
 
 void
-meta_seat_impl_notify_scroll_continuous (MetaSeatImpl             *seat_impl,
-                                         ClutterInputDevice       *input_device,
-                                         uint64_t                  time_us,
-                                         double                    dx,
-                                         double                    dy,
-                                         ClutterScrollSource       scroll_source,
-                                         ClutterScrollFinishFlags  finish_flags)
+meta_seat_impl_notify_scroll_continuous_in_impl (MetaSeatImpl             *seat_impl,
+                                                 ClutterInputDevice       *input_device,
+                                                 uint64_t                  time_us,
+                                                 double                    dx,
+                                                 double                    dy,
+                                                 ClutterScrollSource       scroll_source,
+                                                 ClutterScrollFinishFlags  finish_flags)
 {
   if (finish_flags & CLUTTER_SCROLL_FINISHED_HORIZONTAL)
     seat_impl->accum_scroll_dx = 0;
@@ -882,12 +882,12 @@ discrete_to_direction (double discrete_dx,
 }
 
 void
-meta_seat_impl_notify_discrete_scroll (MetaSeatImpl        *seat_impl,
-                                       ClutterInputDevice  *input_device,
-                                       uint64_t             time_us,
-                                       double               discrete_dx,
-                                       double               discrete_dy,
-                                       ClutterScrollSource  scroll_source)
+meta_seat_impl_notify_discrete_scroll_in_impl (MetaSeatImpl        *seat_impl,
+                                               ClutterInputDevice  *input_device,
+                                               uint64_t             time_us,
+                                               double               discrete_dx,
+                                               double               discrete_dy,
+                                               ClutterScrollSource  scroll_source)
 {
   notify_scroll (input_device, time_us,
                  discrete_dx * DISCRETE_SCROLL_STEP,
@@ -901,13 +901,13 @@ meta_seat_impl_notify_discrete_scroll (MetaSeatImpl        *seat_impl,
 }
 
 void
-meta_seat_impl_notify_touch_event (MetaSeatImpl       *seat_impl,
-                                   ClutterInputDevice *input_device,
-                                   ClutterEventType    evtype,
-                                   uint64_t            time_us,
-                                   int                 slot,
-                                   double              x,
-                                   double              y)
+meta_seat_impl_notify_touch_event_in_impl (MetaSeatImpl       *seat_impl,
+                                           ClutterInputDevice *input_device,
+                                           ClutterEventType    evtype,
+                                           uint64_t            time_us,
+                                           int                 slot,
+                                           double              x,
+                                           double              y)
 {
   ClutterEvent *event = NULL;
 
@@ -917,10 +917,10 @@ meta_seat_impl_notify_touch_event (MetaSeatImpl       *seat_impl,
   event->touch.time = us2ms (time_us);
   event->touch.x = x;
   event->touch.y = y;
-  meta_input_device_native_translate_coordinates (input_device,
-                                                  seat_impl->viewports,
-                                                  &event->touch.x,
-                                                  &event->touch.y);
+  meta_input_device_native_translate_coordinates_in_impl (input_device,
+                                                          seat_impl->viewports,
+                                                          &event->touch.x,
+                                                          &event->touch.y);
 
   /* "NULL" sequences are special cased in clutter */
   event->touch.sequence = GINT_TO_POINTER (MAX (1, slot + 1));
@@ -957,10 +957,10 @@ constrain_to_barriers (MetaSeatImpl       *seat_impl,
                        float              *new_x,
                        float              *new_y)
 {
-  meta_barrier_manager_native_process (seat_impl->barrier_manager,
-                                       device,
-                                       time,
-                                       new_x, new_y);
+  meta_barrier_manager_native_process_in_impl (seat_impl->barrier_manager,
+                                               device,
+                                               time,
+                                               new_x, new_y);
 }
 
 /*
@@ -981,8 +981,8 @@ constrain_all_screen_monitors (ClutterInputDevice *device,
   float cx, cy;
   int i, n_views;
 
-  meta_input_device_native_get_coords (META_INPUT_DEVICE_NATIVE (device),
-                                       &cx, &cy);
+  meta_input_device_native_get_coords_in_impl (META_INPUT_DEVICE_NATIVE (device),
+                                               &cx, &cy);
 
   /* if we're trying to escape, clamp to the CRTC we're coming from */
 
@@ -1171,11 +1171,11 @@ meta_seat_impl_filter_relative_motion (MetaSeatImpl       *seat_impl,
 }
 
 static void
-notify_absolute_motion (ClutterInputDevice *input_device,
-                        uint64_t            time_us,
-                        float               x,
-                        float               y,
-                        double             *axes)
+notify_absolute_motion_in_impl (ClutterInputDevice *input_device,
+                                uint64_t            time_us,
+                                float               x,
+                                float               y,
+                                double             *axes)
 {
   MetaSeatImpl *seat_impl;
   ClutterEvent *event;
@@ -1187,11 +1187,11 @@ notify_absolute_motion (ClutterInputDevice *input_device,
 }
 
 static void
-notify_relative_tool_motion (ClutterInputDevice *input_device,
-                             uint64_t            time_us,
-                             float               dx,
-                             float               dy,
-                             double             *axes)
+notify_relative_tool_motion_in_impl (ClutterInputDevice *input_device,
+                                     uint64_t            time_us,
+                                     float               dx,
+                                     float               dy,
+                                     double             *axes)
 {
   MetaInputDeviceNative *device_native;
   ClutterEvent *event;
@@ -1234,9 +1234,9 @@ notify_pinch_gesture_event (ClutterInputDevice          *input_device,
 
   event = clutter_event_new (CLUTTER_TOUCHPAD_PINCH);
 
-  meta_input_device_native_get_coords (META_INPUT_DEVICE_NATIVE (seat_impl->core_pointer),
-                                       &event->touchpad_pinch.x,
-                                       &event->touchpad_pinch.y);
+  meta_input_device_native_get_coords_in_impl (META_INPUT_DEVICE_NATIVE (seat_impl->core_pointer),
+                                               &event->touchpad_pinch.x,
+                                               &event->touchpad_pinch.y);
 
   meta_event_native_set_time_usec (event, time_us);
   event->touchpad_pinch.phase = phase;
@@ -1274,9 +1274,9 @@ notify_swipe_gesture_event (ClutterInputDevice          *input_device,
   event->touchpad_swipe.phase = phase;
   event->touchpad_swipe.time = us2ms (time_us);
 
-  meta_input_device_native_get_coords (META_INPUT_DEVICE_NATIVE (seat_impl->core_pointer),
-                                       &event->touchpad_swipe.x,
-                                       &event->touchpad_swipe.y);
+  meta_input_device_native_get_coords_in_impl (META_INPUT_DEVICE_NATIVE (seat_impl->core_pointer),
+                                               &event->touchpad_swipe.x,
+                                               &event->touchpad_swipe.y);
   event->touchpad_swipe.dx = dx;
   event->touchpad_swipe.dy = dy;
   event->touchpad_swipe.n_fingers = n_fingers;
@@ -1557,13 +1557,13 @@ evdev_add_device (MetaSeatImpl           *seat_impl,
   ClutterInputDevice *device;
   gboolean is_touchscreen, is_tablet_switch;
 
-  device = meta_input_device_native_new (seat_impl, libinput_device);
+  device = meta_input_device_native_new_in_impl (seat_impl, libinput_device);
 
   seat_impl->devices = g_slist_prepend (seat_impl->devices, device);
 
   /* Clutter assumes that device types are exclusive in the
    * ClutterInputDevice API */
-  type = meta_input_device_native_determine_type (libinput_device);
+  type = meta_input_device_native_determine_type_in_impl (libinput_device);
 
   is_touchscreen = type == CLUTTER_TOUCHSCREEN_DEVICE;
   is_tablet_switch =
@@ -1762,7 +1762,7 @@ translate_tablet_axes (struct libinput_event_tablet_tool *tablet_event,
   if (libinput_tablet_tool_has_pressure (libinput_tool))
     {
       value = libinput_event_tablet_tool_get_pressure (tablet_event);
-      value = meta_input_device_tool_native_translate_pressure (tool, value);
+      value = meta_input_device_tool_native_translate_pressure_in_impl (tool, value);
       axes[CLUTTER_INPUT_AXIS_PRESSURE] = value;
     }
 
@@ -1824,9 +1824,9 @@ notify_continuous_axis (MetaSeatImpl                  *seat_impl,
         finish_flags |= CLUTTER_SCROLL_FINISHED_VERTICAL;
     }
 
-  meta_seat_impl_notify_scroll_continuous (seat_impl, device, time_us,
-                                           dx, dy,
-                                           scroll_source, finish_flags);
+  meta_seat_impl_notify_scroll_continuous_in_impl (seat_impl, device, time_us,
+                                                   dx, dy,
+                                                   scroll_source, finish_flags);
 }
 
 static void
@@ -1851,10 +1851,10 @@ notify_discrete_axis (MetaSeatImpl                  *seat_impl,
           axis_event, LIBINPUT_POINTER_AXIS_SCROLL_VERTICAL);
     }
 
-  meta_seat_impl_notify_discrete_scroll (seat_impl, device,
-                                         time_us,
-                                         discrete_dx, discrete_dy,
-                                         scroll_source);
+  meta_seat_impl_notify_discrete_scroll_in_impl (seat_impl, device,
+                                                 time_us,
+                                                 discrete_dx, discrete_dy,
+                                                 scroll_source);
 }
 
 static void
@@ -1881,19 +1881,19 @@ process_tablet_axis (MetaSeatImpl          *seat_impl,
 
   time = libinput_event_tablet_tool_get_time_usec (tablet_event);
 
-  if (meta_input_device_native_get_mapping_mode (device) == META_INPUT_DEVICE_MAPPING_RELATIVE ||
+  if (meta_input_device_native_get_mapping_mode_in_impl (device) == META_INPUT_DEVICE_MAPPING_RELATIVE ||
       clutter_input_device_tool_get_tool_type (evdev_device->last_tool) == CLUTTER_INPUT_DEVICE_TOOL_MOUSE ||
       clutter_input_device_tool_get_tool_type (evdev_device->last_tool) == CLUTTER_INPUT_DEVICE_TOOL_LENS)
     {
       dx = libinput_event_tablet_tool_get_dx (tablet_event);
       dy = libinput_event_tablet_tool_get_dy (tablet_event);
-      notify_relative_tool_motion (device, time, dx, dy, axes);
+      notify_relative_tool_motion_in_impl (device, time, dx, dy, axes);
     }
   else
     {
       x = libinput_event_tablet_tool_get_x_transformed (tablet_event, stage_width);
       y = libinput_event_tablet_tool_get_y_transformed (tablet_event, stage_height);
-      notify_absolute_motion (device, time, x, y, axes);
+      notify_absolute_motion_in_impl (device, time, x, y, axes);
     }
 }
 
@@ -1937,9 +1937,9 @@ process_device_event (MetaSeatImpl          *seat_impl,
             break;
           }
 
-        meta_seat_impl_notify_key (seat_impl,
-                                   device,
-                                   time_us, key, key_state, TRUE);
+        meta_seat_impl_notify_key_in_impl (seat_impl,
+                                           device,
+                                           time_us, key, key_state, TRUE);
 
         break;
       }
@@ -1961,11 +1961,11 @@ process_device_event (MetaSeatImpl          *seat_impl,
         dx_unaccel = libinput_event_pointer_get_dx_unaccelerated (pointer_event);
         dy_unaccel = libinput_event_pointer_get_dy_unaccelerated (pointer_event);
 
-        meta_seat_impl_notify_relative_motion (seat_impl,
-                                               device,
-                                               time_us,
-                                               dx, dy,
-                                               dx_unaccel, dy_unaccel);
+        meta_seat_impl_notify_relative_motion_in_impl (seat_impl,
+                                                       device,
+                                                       time_us,
+                                                       dx, dy,
+                                                       dx_unaccel, dy_unaccel);
 
         break;
       }
@@ -1988,11 +1988,11 @@ process_device_event (MetaSeatImpl          *seat_impl,
         y = libinput_event_pointer_get_absolute_y_transformed (motion_event,
                                                                stage_height);
 
-        meta_seat_impl_notify_absolute_motion (seat_impl,
-                                               device,
-                                               time_us,
-                                               x, y,
-                                               NULL);
+        meta_seat_impl_notify_absolute_motion_in_impl (seat_impl,
+                                                       device,
+                                                       time_us,
+                                                       x, y,
+                                                       NULL);
 
         break;
       }
@@ -2026,8 +2026,8 @@ process_device_event (MetaSeatImpl          *seat_impl,
             break;
           }
 
-        meta_seat_impl_notify_button (seat_impl, device,
-                                      time_us, button, button_state);
+        meta_seat_impl_notify_button_in_impl (seat_impl, device,
+                                              time_us, button, button_state);
         break;
       }
 
@@ -2091,18 +2091,18 @@ process_device_event (MetaSeatImpl          *seat_impl,
 
         g_rw_lock_writer_lock (&seat_impl->state_lock);
 
-        touch_state = meta_seat_impl_acquire_touch_state (seat_impl, seat_slot);
+        touch_state = meta_seat_impl_acquire_touch_state_in_impl (seat_impl, seat_slot);
         touch_state->coords.x = x;
         touch_state->coords.y = y;
 
         g_rw_lock_writer_unlock (&seat_impl->state_lock);
 
-        meta_seat_impl_notify_touch_event (seat_impl, device,
-                                           CLUTTER_TOUCH_BEGIN,
-                                           time_us,
-                                           touch_state->seat_slot,
-                                           touch_state->coords.x,
-                                           touch_state->coords.y);
+        meta_seat_impl_notify_touch_event_in_impl (seat_impl, device,
+                                                   CLUTTER_TOUCH_BEGIN,
+                                                   time_us,
+                                                   touch_state->seat_slot,
+                                                   touch_state->coords.x,
+                                                   touch_state->coords.y);
         break;
       }
 
@@ -2119,18 +2119,18 @@ process_device_event (MetaSeatImpl          *seat_impl,
 
         seat_slot = libinput_event_touch_get_seat_slot (touch_event);
         time_us = libinput_event_touch_get_time_usec (touch_event);
-        touch_state = meta_seat_impl_lookup_touch_state (seat_impl, seat_slot);
+        touch_state = meta_seat_impl_lookup_touch_state_in_impl (seat_impl, seat_slot);
         if (!touch_state)
           break;
 
-        meta_seat_impl_notify_touch_event (seat_impl, device,
-                                           CLUTTER_TOUCH_END, time_us,
-                                           touch_state->seat_slot,
-                                           touch_state->coords.x,
-                                           touch_state->coords.y);
+        meta_seat_impl_notify_touch_event_in_impl (seat_impl, device,
+                                                   CLUTTER_TOUCH_END, time_us,
+                                                   touch_state->seat_slot,
+                                                   touch_state->coords.x,
+                                                   touch_state->coords.y);
 
         g_rw_lock_writer_lock (&seat_impl->state_lock);
-        meta_seat_impl_release_touch_state (seat_impl, seat_slot);
+        meta_seat_impl_release_touch_state_in_impl (seat_impl, seat_slot);
         g_rw_lock_writer_unlock (&seat_impl->state_lock);
         break;
       }
@@ -2159,7 +2159,7 @@ process_device_event (MetaSeatImpl          *seat_impl,
                                                     stage_height);
 
         g_rw_lock_writer_lock (&seat_impl->state_lock);
-        touch_state = meta_seat_impl_lookup_touch_state (seat_impl, seat_slot);
+        touch_state = meta_seat_impl_lookup_touch_state_in_impl (seat_impl, seat_slot);
         if (touch_state)
           {
             touch_state->coords.x = x;
@@ -2170,12 +2170,12 @@ process_device_event (MetaSeatImpl          *seat_impl,
         if (!touch_state)
           break;
 
-        meta_seat_impl_notify_touch_event (seat_impl, device,
-                                           CLUTTER_TOUCH_UPDATE,
-                                           time_us,
-                                           touch_state->seat_slot,
-                                           touch_state->coords.x,
-                                           touch_state->coords.y);
+        meta_seat_impl_notify_touch_event_in_impl (seat_impl, device,
+                                                   CLUTTER_TOUCH_UPDATE,
+                                                   time_us,
+                                                   touch_state->seat_slot,
+                                                   touch_state->coords.x,
+                                                   touch_state->coords.y);
         break;
       }
     case LIBINPUT_EVENT_TOUCH_CANCEL:
@@ -2191,19 +2191,19 @@ process_device_event (MetaSeatImpl          *seat_impl,
         time_us = libinput_event_touch_get_time_usec (touch_event);
 
         seat_slot = libinput_event_touch_get_seat_slot (touch_event);
-        touch_state = meta_seat_impl_lookup_touch_state (seat_impl, seat_slot);
+        touch_state = meta_seat_impl_lookup_touch_state_in_impl (seat_impl, seat_slot);
         if (!touch_state)
           break;
 
-        meta_seat_impl_notify_touch_event (touch_state->seat_impl,
-                                           CLUTTER_INPUT_DEVICE (device_native),
-                                           CLUTTER_TOUCH_CANCEL,
-                                           time_us,
-                                           touch_state->seat_slot,
-                                           touch_state->coords.x,
-                                           touch_state->coords.y);
+        meta_seat_impl_notify_touch_event_in_impl (touch_state->seat_impl,
+                                                   CLUTTER_INPUT_DEVICE (device_native),
+                                                   CLUTTER_TOUCH_CANCEL,
+                                                   time_us,
+                                                   touch_state->seat_slot,
+                                                   touch_state->coords.x,
+                                                   touch_state->coords.y);
 
-        meta_seat_impl_release_touch_state (seat_impl, seat_slot);
+        meta_seat_impl_release_touch_state_in_impl (seat_impl, seat_slot);
         break;
       }
     case LIBINPUT_EVENT_GESTURE_PINCH_BEGIN:
@@ -2335,8 +2335,8 @@ process_device_event (MetaSeatImpl          *seat_impl,
         button_state = libinput_event_tablet_tool_get_button_state (tablet_event) ==
                        LIBINPUT_BUTTON_STATE_PRESSED;
 
-        meta_seat_impl_notify_button (seat_impl, device,
-                                      time_us, tablet_button, button_state);
+        meta_seat_impl_notify_button_in_impl (seat_impl, device,
+                                              time_us, tablet_button, button_state);
         break;
       }
     case LIBINPUT_EVENT_TABLET_TOOL_TIP:
@@ -2357,8 +2357,8 @@ process_device_event (MetaSeatImpl          *seat_impl,
         if (button_state)
           process_tablet_axis (seat_impl, event);
 
-        meta_seat_impl_notify_button (seat_impl, device,
-                                      time_us, BTN_TOUCH, button_state);
+        meta_seat_impl_notify_button_in_impl (seat_impl, device,
+                                              time_us, BTN_TOUCH, button_state);
         if (!button_state)
           process_tablet_axis (seat_impl, event);
         break;
@@ -2527,7 +2527,7 @@ kbd_a11y_changed_cb (MetaInputSettings   *input_settings,
   MetaInputDeviceNative *keyboard;
 
   keyboard = META_INPUT_DEVICE_NATIVE (seat_impl->core_keyboard);
-  meta_input_device_native_apply_kbd_a11y_settings (keyboard, a11y_settings);
+  meta_input_device_native_apply_kbd_a11y_settings_in_impl (keyboard, a11y_settings);
 }
 
 static gpointer
@@ -2567,7 +2567,7 @@ input_thread (MetaSeatImpl *seat_impl)
 
   udev_unref (udev);
 
-  seat_impl->input_settings = meta_input_settings_native_new (seat_impl);
+  seat_impl->input_settings = meta_input_settings_native_new_in_impl (seat_impl);
   g_signal_connect_object (seat_impl->input_settings, "kbd-a11y-changed",
                            G_CALLBACK (kbd_a11y_changed_cb), seat_impl, 0);
 
@@ -2576,7 +2576,7 @@ input_thread (MetaSeatImpl *seat_impl)
 
   seat_impl->keymap = g_object_new (META_TYPE_KEYMAP_NATIVE, NULL);
 
-  xkb_keymap = meta_keymap_native_get_keyboard_map (seat_impl->keymap);
+  xkb_keymap = meta_keymap_native_get_keyboard_map_in_impl (seat_impl->keymap);
 
   if (xkb_keymap)
     {
@@ -2647,9 +2647,9 @@ meta_seat_impl_constructed (GObject *object)
       CLUTTER_INPUT_MODE_LOGICAL);
   seat_impl->pointer_x = INITIAL_POINTER_X;
   seat_impl->pointer_y = INITIAL_POINTER_Y;
-  meta_input_device_native_set_coords (META_INPUT_DEVICE_NATIVE (device),
-                                       seat_impl->pointer_x,
-                                       seat_impl->pointer_y);
+  meta_input_device_native_set_coords_in_impl (META_INPUT_DEVICE_NATIVE (device),
+                                               seat_impl->pointer_x,
+                                               seat_impl->pointer_y);
   seat_impl->core_pointer = device;
 
   device = meta_input_device_native_new_virtual (
@@ -2768,7 +2768,7 @@ meta_seat_impl_get_keyboard (MetaSeatImpl *seat_impl)
 }
 
 GSList *
-meta_seat_impl_get_devices (MetaSeatImpl *seat_impl)
+meta_seat_impl_get_devices_in_impl (MetaSeatImpl *seat_impl)
 {
   return g_slist_copy_deep (seat_impl->devices,
                             (GCopyFunc) g_object_ref,
@@ -2782,14 +2782,14 @@ meta_seat_impl_get_keymap (MetaSeatImpl *seat_impl)
 }
 
 static gboolean
-warp_pointer (GTask *task)
+warp_pointer_in_impl (GTask *task)
 {
   MetaSeatImpl *seat = g_task_get_source_object (task);
   graphene_point_t *point;
 
   point = g_task_get_task_data (task);
-  notify_absolute_motion (seat->core_pointer, 0,
-                          point->x, point->y, NULL);
+  notify_absolute_motion_in_impl (seat->core_pointer, 0,
+                                  point->x, point->y, NULL);
   g_task_return_boolean (task, TRUE);
 
   return G_SOURCE_REMOVE;
@@ -2809,7 +2809,8 @@ meta_seat_impl_warp_pointer (MetaSeatImpl *seat_impl,
 
   task = g_task_new (seat_impl, NULL, NULL, NULL);
   g_task_set_task_data (task, point, (GDestroyNotify) graphene_point_free);
-  meta_seat_impl_run_input_task (seat_impl, task, (GSourceFunc) warp_pointer);
+  meta_seat_impl_run_input_task (seat_impl, task,
+                                 (GSourceFunc) warp_pointer_in_impl);
   g_object_unref (task);
 }
 
@@ -2832,7 +2833,7 @@ meta_seat_impl_query_state (MetaSeatImpl         *seat_impl,
       int slot;
 
       slot = meta_event_native_sequence_get_slot (sequence);
-      touch_state = meta_seat_impl_lookup_touch_state (seat_impl, slot);
+      touch_state = meta_seat_impl_lookup_touch_state_in_impl (seat_impl, slot);
       if (!touch_state)
         goto out;
 
@@ -2984,7 +2985,7 @@ meta_seat_impl_set_device_callbacks (MetaOpenDeviceCallback  open_callback,
 }
 
 void
-meta_seat_impl_update_xkb_state (MetaSeatImpl *seat_impl)
+meta_seat_impl_update_xkb_state_in_impl (MetaSeatImpl *seat_impl)
 {
   xkb_mod_mask_t latched_mods = 0;
   xkb_mod_mask_t locked_mods = 0;
@@ -2992,7 +2993,7 @@ meta_seat_impl_update_xkb_state (MetaSeatImpl *seat_impl)
 
   g_rw_lock_writer_lock (&seat_impl->state_lock);
 
-  xkb_keymap = meta_keymap_native_get_keyboard_map (seat_impl->keymap);
+  xkb_keymap = meta_keymap_native_get_keyboard_map_in_impl (seat_impl->keymap);
 
   if (seat_impl->xkb)
     {
@@ -3018,8 +3019,8 @@ meta_seat_impl_update_xkb_state (MetaSeatImpl *seat_impl)
   seat_impl->scroll_lock_led =
     xkb_keymap_led_get_index (xkb_keymap, XKB_LED_NAME_SCROLL);
 
-  meta_seat_impl_sync_leds (seat_impl);
-  meta_keymap_native_update (seat_impl->keymap);
+  meta_seat_impl_sync_leds_in_impl (seat_impl);
+  meta_keymap_native_update_in_impl (seat_impl->keymap);
 
   g_rw_lock_writer_unlock (&seat_impl->state_lock);
 }
@@ -3079,7 +3080,7 @@ reclaim_devices (GTask *task)
   if (seat_impl->released)
     {
       libinput_resume (seat_impl->libinput);
-      meta_seat_impl_update_xkb_state (seat_impl);
+      meta_seat_impl_update_xkb_state_in_impl (seat_impl);
       process_events (seat_impl);
 
       seat_impl->released = FALSE;
@@ -3126,9 +3127,9 @@ set_keyboard_map (GTask *task)
   MetaKeymapNative *keymap;
 
   keymap = seat_impl->keymap;
-  meta_keymap_native_set_keyboard_map (keymap, xkb_keymap);
+  meta_keymap_native_set_keyboard_map_in_impl (keymap, xkb_keymap);
 
-  meta_seat_impl_update_xkb_state (seat_impl);
+  meta_seat_impl_update_xkb_state_in_impl (seat_impl);
   g_task_return_boolean (task, TRUE);
 
   return G_SOURCE_REMOVE;
@@ -3179,7 +3180,7 @@ set_keyboard_layout_index (GTask *task)
   locked_mods = xkb_state_serialize_mods (state, XKB_STATE_MODS_LOCKED);
 
   xkb_state_update_mask (state, depressed_mods, latched_mods, locked_mods, 0, 0, idx);
-  meta_keymap_native_update (seat_impl->keymap);
+  meta_keymap_native_update_in_impl (seat_impl->keymap);
 
   seat_impl->layout_idx = idx;
 
@@ -3228,7 +3229,7 @@ set_keyboard_numlock (GTask *task)
   g_rw_lock_writer_lock (&seat_impl->state_lock);
 
   keymap = seat_impl->keymap;
-  xkb_keymap = meta_keymap_native_get_keyboard_map (keymap);
+  xkb_keymap = meta_keymap_native_get_keyboard_map_in_impl (keymap);
 
   numlock = (1 << xkb_keymap_mod_get_index (xkb_keymap, "Mod2"));
 
@@ -3253,8 +3254,8 @@ set_keyboard_numlock (GTask *task)
                          0, 0,
                          group_mods);
 
-  meta_seat_impl_sync_leds (seat_impl);
-  meta_keymap_native_update (seat_impl->keymap);
+  meta_seat_impl_sync_leds_in_impl (seat_impl);
+  meta_keymap_native_update_in_impl (seat_impl->keymap);
 
   g_rw_lock_writer_unlock (&seat_impl->state_lock);
 
@@ -3286,7 +3287,7 @@ meta_seat_impl_set_keyboard_numlock (MetaSeatImpl *seat_impl,
 }
 
 /**
- * meta_seat_impl_set_keyboard_repeat:
+ * meta_seat_impl_set_keyboard_repeat_in_impl:
  * @seat: the #ClutterSeat created by the evdev backend
  * @repeat: whether to enable or disable keyboard repeat events
  * @delay: the delay in ms between the hardware key press event and
@@ -3298,10 +3299,10 @@ meta_seat_impl_set_keyboard_numlock (MetaSeatImpl *seat_impl,
  * delay and interval period to be specified.
  */
 void
-meta_seat_impl_set_keyboard_repeat (MetaSeatImpl *seat_impl,
-                                    gboolean      repeat,
-                                    uint32_t      delay,
-                                    uint32_t      interval)
+meta_seat_impl_set_keyboard_repeat_in_impl (MetaSeatImpl *seat_impl,
+                                            gboolean      repeat,
+                                            uint32_t      delay,
+                                            uint32_t      interval)
 {
   g_return_if_fail (META_IS_SEAT_IMPL (seat_impl));
 
@@ -3311,7 +3312,7 @@ meta_seat_impl_set_keyboard_repeat (MetaSeatImpl *seat_impl,
 }
 
 struct xkb_state *
-meta_seat_impl_get_xkb_state (MetaSeatImpl *seat_impl)
+meta_seat_impl_get_xkb_state_in_impl (MetaSeatImpl *seat_impl)
 {
   return seat_impl->xkb;
 }
@@ -3396,9 +3397,9 @@ meta_seat_impl_new (MetaSeatNative *seat_native,
 }
 
 void
-meta_seat_impl_notify_kbd_a11y_flags_changed (MetaSeatImpl          *seat_impl,
-                                              MetaKeyboardA11yFlags  new_flags,
-                                              MetaKeyboardA11yFlags  what_changed)
+meta_seat_impl_notify_kbd_a11y_flags_changed_in_impl (MetaSeatImpl          *seat_impl,
+                                                      MetaKeyboardA11yFlags  new_flags,
+                                                      MetaKeyboardA11yFlags  what_changed)
 {
   MetaInputSettings *input_settings;
   GValue values[] = { G_VALUE_INIT, G_VALUE_INIT };
@@ -3416,9 +3417,9 @@ meta_seat_impl_notify_kbd_a11y_flags_changed (MetaSeatImpl          *seat_impl,
 }
 
 void
-meta_seat_impl_notify_kbd_a11y_mods_state_changed (MetaSeatImpl   *seat_impl,
-                                                   xkb_mod_mask_t  new_latched_mods,
-                                                   xkb_mod_mask_t  new_locked_mods)
+meta_seat_impl_notify_kbd_a11y_mods_state_changed_in_impl (MetaSeatImpl   *seat_impl,
+                                                           xkb_mod_mask_t  new_latched_mods,
+                                                           xkb_mod_mask_t  new_locked_mods)
 {
   GValue values[] = { G_VALUE_INIT, G_VALUE_INIT };
 
@@ -3432,7 +3433,7 @@ meta_seat_impl_notify_kbd_a11y_mods_state_changed (MetaSeatImpl   *seat_impl,
 }
 
 void
-meta_seat_impl_notify_bell (MetaSeatImpl *seat_impl)
+meta_seat_impl_notify_bell_in_impl (MetaSeatImpl *seat_impl)
 {
   emit_signal (seat_impl, signals[BELL], NULL, 0);
 }
diff --git a/src/backends/native/meta-seat-impl.h b/src/backends/native/meta-seat-impl.h
index 05edb35db1..022106f885 100644
--- a/src/backends/native/meta-seat-impl.h
+++ b/src/backends/native/meta-seat-impl.h
@@ -129,67 +129,67 @@ void meta_seat_impl_run_input_task (MetaSeatImpl *seat_impl,
                                     GTask        *task,
                                     GSourceFunc   dispatch_func);
 
-void meta_seat_impl_notify_key (MetaSeatImpl       *seat_impl,
-                                ClutterInputDevice *device,
-                                uint64_t            time_us,
-                                uint32_t            key,
-                                uint32_t            state,
-                                gboolean            update_keys);
-
-void meta_seat_impl_notify_relative_motion (MetaSeatImpl       *seat_impl,
-                                            ClutterInputDevice *input_device,
-                                            uint64_t            time_us,
-                                            float               dx,
-                                            float               dy,
-                                            float               dx_unaccel,
-                                            float               dy_unaccel);
-
-void meta_seat_impl_notify_absolute_motion (MetaSeatImpl       *seat_impl,
-                                            ClutterInputDevice *input_device,
-                                            uint64_t            time_us,
-                                            float               x,
-                                            float               y,
-                                            double             *axes);
-
-void meta_seat_impl_notify_button (MetaSeatImpl       *seat_impl,
-                                   ClutterInputDevice *input_device,
-                                   uint64_t            time_us,
-                                   uint32_t            button,
-                                   uint32_t            state);
-
-void meta_seat_impl_notify_scroll_continuous (MetaSeatImpl             *seat_impl,
-                                              ClutterInputDevice       *input_device,
-                                              uint64_t                  time_us,
-                                              double                    dx,
-                                              double                    dy,
-                                              ClutterScrollSource       source,
-                                              ClutterScrollFinishFlags  flags);
-
-void meta_seat_impl_notify_discrete_scroll (MetaSeatImpl        *seat_impl,
-                                            ClutterInputDevice  *input_device,
-                                            uint64_t             time_us,
-                                            double               discrete_dx,
-                                            double               discrete_dy,
-                                            ClutterScrollSource  source);
-
-void meta_seat_impl_notify_touch_event (MetaSeatImpl       *seat_impl,
-                                        ClutterInputDevice *input_device,
-                                        ClutterEventType    evtype,
+void meta_seat_impl_notify_key_in_impl (MetaSeatImpl       *seat_impl,
+                                        ClutterInputDevice *device,
                                         uint64_t            time_us,
-                                        int                 slot,
-                                        double              x,
-                                        double              y);
-
-void meta_seat_impl_sync_leds (MetaSeatImpl *seat_impl);
-
-MetaTouchState * meta_seat_impl_acquire_touch_state (MetaSeatImpl *seat_impl,
-                                                     int           seat_slot);
-MetaTouchState * meta_seat_impl_lookup_touch_state (MetaSeatImpl *seat_impl,
-                                                    int           seat_slot);
-void meta_seat_impl_release_touch_state (MetaSeatImpl   *seat_impl,
-                                         int             seat_slot);
-
-void meta_seat_impl_update_xkb_state (MetaSeatImpl *seat_impl);
+                                        uint32_t            key,
+                                        uint32_t            state,
+                                        gboolean            update_keys);
+
+void meta_seat_impl_notify_relative_motion_in_impl (MetaSeatImpl       *seat_impl,
+                                                    ClutterInputDevice *input_device,
+                                                    uint64_t            time_us,
+                                                    float               dx,
+                                                    float               dy,
+                                                    float               dx_unaccel,
+                                                    float               dy_unaccel);
+
+void meta_seat_impl_notify_absolute_motion_in_impl (MetaSeatImpl       *seat_impl,
+                                                    ClutterInputDevice *input_device,
+                                                    uint64_t            time_us,
+                                                    float               x,
+                                                    float               y,
+                                                    double             *axes);
+
+void meta_seat_impl_notify_button_in_impl (MetaSeatImpl       *seat_impl,
+                                           ClutterInputDevice *input_device,
+                                           uint64_t            time_us,
+                                           uint32_t            button,
+                                           uint32_t            state);
+
+void meta_seat_impl_notify_scroll_continuous_in_impl (MetaSeatImpl             *seat_impl,
+                                                      ClutterInputDevice       *input_device,
+                                                      uint64_t                  time_us,
+                                                      double                    dx,
+                                                      double                    dy,
+                                                      ClutterScrollSource       source,
+                                                      ClutterScrollFinishFlags  flags);
+
+void meta_seat_impl_notify_discrete_scroll_in_impl (MetaSeatImpl        *seat_impl,
+                                                    ClutterInputDevice  *input_device,
+                                                    uint64_t             time_us,
+                                                    double               discrete_dx,
+                                                    double               discrete_dy,
+                                                    ClutterScrollSource  source);
+
+void meta_seat_impl_notify_touch_event_in_impl (MetaSeatImpl       *seat_impl,
+                                                ClutterInputDevice *input_device,
+                                                ClutterEventType    evtype,
+                                                uint64_t            time_us,
+                                                int                 slot,
+                                                double              x,
+                                                double              y);
+
+void meta_seat_impl_sync_leds_in_impl (MetaSeatImpl *seat_impl);
+
+MetaTouchState * meta_seat_impl_acquire_touch_state_in_impl (MetaSeatImpl *seat_impl,
+                                                             int           seat_slot);
+MetaTouchState * meta_seat_impl_lookup_touch_state_in_impl (MetaSeatImpl *seat_impl,
+                                                            int           seat_slot);
+void meta_seat_impl_release_touch_state_in_impl (MetaSeatImpl   *seat_impl,
+                                                 int             seat_slot);
+
+void meta_seat_impl_update_xkb_state_in_impl (MetaSeatImpl *seat_impl);
 
 /**
  * MetaOpenDeviceCallback:
@@ -214,10 +214,10 @@ void  meta_seat_impl_set_device_callbacks (MetaOpenDeviceCallback  open_callback
 void  meta_seat_impl_release_devices (MetaSeatImpl *seat_impl);
 void  meta_seat_impl_reclaim_devices (MetaSeatImpl *seat_impl);
 
-struct xkb_state * meta_seat_impl_get_xkb_state (MetaSeatImpl *seat_impl);
+struct xkb_state * meta_seat_impl_get_xkb_state_in_impl (MetaSeatImpl *seat_impl);
 
-void               meta_seat_impl_set_keyboard_map   (MetaSeatImpl      *seat_impl,
-                                                      struct xkb_keymap *keymap);
+void meta_seat_impl_set_keyboard_map (MetaSeatImpl      *seat_impl,
+                                      struct xkb_keymap *keymap);
 
 void meta_seat_impl_set_keyboard_layout_index (MetaSeatImpl       *seat_impl,
                                                xkb_layout_index_t  idx);
@@ -225,10 +225,10 @@ void meta_seat_impl_set_keyboard_layout_index (MetaSeatImpl       *seat_impl,
 void meta_seat_impl_set_keyboard_numlock (MetaSeatImpl *seat_impl,
                                           gboolean      numlock_state);
 
-void meta_seat_impl_set_keyboard_repeat (MetaSeatImpl *seat_impl,
-                                         gboolean      repeat,
-                                         uint32_t      delay,
-                                         uint32_t      interval);
+void meta_seat_impl_set_keyboard_repeat_in_impl (MetaSeatImpl *seat_impl,
+                                                 gboolean      repeat,
+                                                 uint32_t      delay,
+                                                 uint32_t      interval);
 
 MetaBarrierManagerNative * meta_seat_impl_get_barrier_manager (MetaSeatImpl *seat_impl);
 
@@ -247,17 +247,17 @@ gboolean meta_seat_impl_query_state (MetaSeatImpl         *seat_impl,
                                      ClutterModifierType  *modifiers);
 ClutterInputDevice * meta_seat_impl_get_pointer (MetaSeatImpl *seat_impl);
 ClutterInputDevice * meta_seat_impl_get_keyboard (MetaSeatImpl *seat_impl);
-GSList * meta_seat_impl_get_devices (MetaSeatImpl *seat_impl);
+GSList * meta_seat_impl_get_devices_in_impl (MetaSeatImpl *seat_impl);
 
 MetaKeymapNative * meta_seat_impl_get_keymap (MetaSeatImpl *seat_impl);
 
-void meta_seat_impl_notify_kbd_a11y_flags_changed (MetaSeatImpl          *seat_impl,
-                                                   MetaKeyboardA11yFlags  new_flags,
-                                                   MetaKeyboardA11yFlags  what_changed);
-void meta_seat_impl_notify_kbd_a11y_mods_state_changed (MetaSeatImpl   *seat_impl,
-                                                        xkb_mod_mask_t  new_latched_mods,
-                                                        xkb_mod_mask_t  new_locked_mods);
-void meta_seat_impl_notify_bell (MetaSeatImpl *seat_impl);
+void meta_seat_impl_notify_kbd_a11y_flags_changed_in_impl (MetaSeatImpl          *seat_impl,
+                                                           MetaKeyboardA11yFlags  new_flags,
+                                                           MetaKeyboardA11yFlags  what_changed);
+void meta_seat_impl_notify_kbd_a11y_mods_state_changed_in_impl (MetaSeatImpl   *seat_impl,
+                                                                xkb_mod_mask_t  new_latched_mods,
+                                                                xkb_mod_mask_t  new_locked_mods);
+void meta_seat_impl_notify_bell_in_impl (MetaSeatImpl *seat_impl);
 
 MetaInputSettings * meta_seat_impl_get_input_settings (MetaSeatImpl *seat_impl);
 
diff --git a/src/backends/native/meta-virtual-input-device-native.c 
b/src/backends/native/meta-virtual-input-device-native.c
index 9d19f10828..39caa8b092 100644
--- a/src/backends/native/meta-virtual-input-device-native.c
+++ b/src/backends/native/meta-virtual-input-device-native.c
@@ -109,9 +109,9 @@ typedef enum _EvdevButtonType
 } EvdevButtonType;
 
 static int
-update_button_count (MetaVirtualInputDeviceNative *virtual_evdev,
-                     uint32_t                      button,
-                     uint32_t                      state)
+update_button_count_in_impl (MetaVirtualInputDeviceNative *virtual_evdev,
+                             uint32_t                      button,
+                             uint32_t                      state)
 {
   if (state)
     return ++virtual_evdev->impl_state->button_count[button];
@@ -156,7 +156,7 @@ get_button_type (uint16_t code)
 }
 
 static gboolean
-release_device (GTask *task)
+release_device_in_impl (GTask *task)
 {
   ImplState *impl_state = g_task_get_task_data (task);
   MetaInputDeviceNative *device_native;
@@ -180,19 +180,19 @@ release_device (GTask *task)
       switch (get_button_type (code))
         {
         case EVDEV_BUTTON_TYPE_KEY:
-          meta_seat_impl_notify_key (seat_impl,
-                                     impl_state->device,
-                                     time_us,
-                                     code,
-                                     CLUTTER_KEY_STATE_RELEASED,
-                                     TRUE);
+          meta_seat_impl_notify_key_in_impl (seat_impl,
+                                             impl_state->device,
+                                             time_us,
+                                             code,
+                                             CLUTTER_KEY_STATE_RELEASED,
+                                             TRUE);
           break;
         case EVDEV_BUTTON_TYPE_BUTTON:
-          meta_seat_impl_notify_button (seat_impl,
-                                        impl_state->device,
-                                        time_us,
-                                        code,
-                                        CLUTTER_BUTTON_STATE_RELEASED);
+          meta_seat_impl_notify_button_in_impl (seat_impl,
+                                                impl_state->device,
+                                                time_us,
+                                                code,
+                                                CLUTTER_BUTTON_STATE_RELEASED);
           break;
         case EVDEV_BUTTON_TYPE_NONE:
           g_assert_not_reached ();
@@ -206,7 +206,7 @@ release_device (GTask *task)
 }
 
 static gboolean
-notify_relative_motion (GTask *task)
+notify_relative_motion_in_impl (GTask *task)
 {
   MetaVirtualInputDeviceNative *virtual_evdev =
     g_task_get_source_object (task);
@@ -216,11 +216,11 @@ notify_relative_motion (GTask *task)
   if (event->time_us == CLUTTER_CURRENT_TIME)
     event->time_us = g_get_monotonic_time ();
 
-  meta_seat_impl_notify_relative_motion (seat,
-                                         virtual_evdev->impl_state->device,
-                                         event->time_us,
-                                         event->x, event->y,
-                                         event->x, event->y);
+  meta_seat_impl_notify_relative_motion_in_impl (seat,
+                                                virtual_evdev->impl_state->device,
+                                                event->time_us,
+                                                event->x, event->y,
+                                                event->x, event->y);
   g_task_return_boolean (task, TRUE);
   return G_SOURCE_REMOVE;
 }
@@ -246,12 +246,12 @@ meta_virtual_input_device_native_notify_relative_motion (ClutterVirtualInputDevi
   task = g_task_new (virtual_device, NULL, NULL, NULL);
   g_task_set_task_data (task, event, g_free);
   meta_seat_impl_run_input_task (virtual_evdev->seat->impl, task,
-                                 (GSourceFunc) notify_relative_motion);
+                                 (GSourceFunc) notify_relative_motion_in_impl);
   g_object_unref (task);
 }
 
 static gboolean
-notify_absolute_motion (GTask *task)
+notify_absolute_motion_in_impl (GTask *task)
 {
   MetaVirtualInputDeviceNative *virtual_evdev =
     g_task_get_source_object (task);
@@ -261,11 +261,11 @@ notify_absolute_motion (GTask *task)
   if (event->time_us == CLUTTER_CURRENT_TIME)
     event->time_us = g_get_monotonic_time ();
 
-  meta_seat_impl_notify_absolute_motion (seat,
-                                         virtual_evdev->impl_state->device,
-                                         event->time_us,
-                                         event->x, event->y,
-                                         NULL);
+  meta_seat_impl_notify_absolute_motion_in_impl (seat,
+                                                virtual_evdev->impl_state->device,
+                                                event->time_us,
+                                                event->x, event->y,
+                                                NULL);
   g_task_return_boolean (task, TRUE);
   return G_SOURCE_REMOVE;
 }
@@ -291,7 +291,7 @@ meta_virtual_input_device_native_notify_absolute_motion (ClutterVirtualInputDevi
   task = g_task_new (virtual_device, NULL, NULL, NULL);
   g_task_set_task_data (task, event, g_free);
   meta_seat_impl_run_input_task (virtual_evdev->seat->impl, task,
-                                 (GSourceFunc) notify_absolute_motion);
+                                 (GSourceFunc) notify_absolute_motion_in_impl);
   g_object_unref (task);
 }
 
@@ -316,7 +316,7 @@ translate_to_evdev_button (int clutter_button)
 }
 
 static gboolean
-notify_button (GTask *task)
+notify_button_in_impl (GTask *task)
 {
   MetaVirtualInputDeviceNative *virtual_evdev =
     g_task_get_source_object (task);
@@ -337,14 +337,14 @@ notify_button (GTask *task)
       goto out;
     }
 
-  button_count = update_button_count (virtual_evdev, evdev_button,
-                                      event->button_state);
+  button_count = update_button_count_in_impl (virtual_evdev, evdev_button,
+                                              event->button_state);
   if (button_count < 0 || button_count > 1)
     {
       g_warning ("Received multiple virtual 0x%x button %s (ignoring)", evdev_button,
                  event->button_state == CLUTTER_BUTTON_STATE_PRESSED ?
                  "presses" : "releases");
-      update_button_count (virtual_evdev, evdev_button, 1 - event->button_state);
+      update_button_count_in_impl (virtual_evdev, evdev_button, 1 - event->button_state);
       goto out;
     }
 
@@ -354,11 +354,11 @@ notify_button (GTask *task)
               "press" : "release",
               evdev_button, virtual_evdev);
 
-  meta_seat_impl_notify_button (seat,
-                                virtual_evdev->impl_state->device,
-                                event->time_us,
-                                evdev_button,
-                                event->button_state);
+  meta_seat_impl_notify_button_in_impl (seat,
+                                       virtual_evdev->impl_state->device,
+                                       event->time_us,
+                                       evdev_button,
+                                       event->button_state);
  out:
   g_task_return_boolean (task, TRUE);
   return G_SOURCE_REMOVE;
@@ -385,12 +385,12 @@ meta_virtual_input_device_native_notify_button (ClutterVirtualInputDevice *virtu
   task = g_task_new (virtual_device, NULL, NULL, NULL);
   g_task_set_task_data (task, event, g_free);
   meta_seat_impl_run_input_task (virtual_evdev->seat->impl, task,
-                                 (GSourceFunc) notify_button);
+                                 (GSourceFunc) notify_button_in_impl);
   g_object_unref (task);
 }
 
 static gboolean
-notify_key (GTask *task)
+notify_key_in_impl (GTask *task)
 {
   MetaVirtualInputDeviceNative *virtual_evdev =
     g_task_get_source_object (task);
@@ -407,13 +407,13 @@ notify_key (GTask *task)
       goto out;
     }
 
-  key_count = update_button_count (virtual_evdev, event->key, event->key_state);
+  key_count = update_button_count_in_impl (virtual_evdev, event->key, event->key_state);
   if (key_count < 0 || key_count > 1)
     {
       g_warning ("Received multiple virtual 0x%x key %s (ignoring)", event->key,
                  event->key_state == CLUTTER_KEY_STATE_PRESSED ?
                  "presses" : "releases");
-      update_button_count (virtual_evdev, event->key, 1 - event->key_state);
+      update_button_count_in_impl (virtual_evdev, event->key, 1 - event->key_state);
       goto out;
     }
 
@@ -422,12 +422,12 @@ notify_key (GTask *task)
               event->key_state == CLUTTER_KEY_STATE_PRESSED ? "press" : "release",
               event->key, virtual_evdev);
 
-  meta_seat_impl_notify_key (seat,
-                             virtual_evdev->impl_state->device,
-                             event->time_us,
-                             event->key,
-                             event->key_state,
-                             TRUE);
+  meta_seat_impl_notify_key_in_impl (seat,
+                                    virtual_evdev->impl_state->device,
+                                    event->time_us,
+                                    event->key,
+                                    event->key_state,
+                                    TRUE);
 
  out:
   g_task_return_boolean (task, TRUE);
@@ -455,15 +455,15 @@ meta_virtual_input_device_native_notify_key (ClutterVirtualInputDevice *virtual_
   task = g_task_new (virtual_device, NULL, NULL, NULL);
   g_task_set_task_data (task, event, g_free);
   meta_seat_impl_run_input_task (virtual_evdev->seat->impl, task,
-                                 (GSourceFunc) notify_key);
+                                 (GSourceFunc) notify_key_in_impl);
   g_object_unref (task);
 }
 
 static gboolean
-pick_keycode_for_keyval_in_current_group (ClutterVirtualInputDevice *virtual_device,
-                                          guint                      keyval,
-                                          guint                     *keycode_out,
-                                          guint                     *level_out)
+pick_keycode_for_keyval_in_current_group_in_impl (ClutterVirtualInputDevice *virtual_device,
+                                                 guint                      keyval,
+                                                 guint                     *keycode_out,
+                                                 guint                     *level_out)
 {
   MetaVirtualInputDeviceNative *virtual_evdev =
     META_VIRTUAL_INPUT_DEVICE_NATIVE (virtual_device);
@@ -476,8 +476,8 @@ pick_keycode_for_keyval_in_current_group (ClutterVirtualInputDevice *virtual_dev
 
   backend = clutter_get_default_backend ();
   keymap = clutter_seat_get_keymap (clutter_backend_get_default_seat (backend));
-  xkb_keymap = meta_keymap_native_get_keyboard_map (META_KEYMAP_NATIVE (keymap));
-  state = meta_seat_impl_get_xkb_state (virtual_evdev->seat->impl);
+  xkb_keymap = meta_keymap_native_get_keyboard_map_in_impl (META_KEYMAP_NATIVE (keymap));
+  state = meta_seat_impl_get_xkb_state_in_impl (virtual_evdev->seat->impl);
 
   layout = xkb_state_serialize_layout (state, XKB_STATE_LAYOUT_EFFECTIVE);
   min_keycode = xkb_keymap_min_keycode (xkb_keymap);
@@ -508,10 +508,10 @@ pick_keycode_for_keyval_in_current_group (ClutterVirtualInputDevice *virtual_dev
 }
 
 static void
-apply_level_modifiers (ClutterVirtualInputDevice *virtual_device,
-                       uint64_t                   time_us,
-                       uint32_t                   level,
-                       uint32_t                   key_state)
+apply_level_modifiers_in_impl (ClutterVirtualInputDevice *virtual_device,
+                               uint64_t                   time_us,
+                               uint32_t                   level,
+                               uint32_t                   key_state)
 {
   MetaVirtualInputDeviceNative *virtual_evdev =
     META_VIRTUAL_INPUT_DEVICE_NATIVE (virtual_device);
@@ -534,8 +534,8 @@ apply_level_modifiers (ClutterVirtualInputDevice *virtual_device,
       return;
     }
 
-  if (!pick_keycode_for_keyval_in_current_group (virtual_device, keysym,
-                                                 &keycode, NULL))
+  if (!pick_keycode_for_keyval_in_current_group_in_impl (virtual_device, keysym,
+                                                        &keycode, NULL))
     return;
 
   evcode = meta_xkb_keycode_to_evdev (keycode);
@@ -545,16 +545,16 @@ apply_level_modifiers (ClutterVirtualInputDevice *virtual_device,
               key_state == CLUTTER_KEY_STATE_PRESSED ? "press" : "release",
               evcode, virtual_device);
 
-  meta_seat_impl_notify_key (virtual_evdev->seat->impl,
-                             virtual_evdev->impl_state->device,
-                             time_us,
-                             evcode,
-                             key_state,
-                             TRUE);
+  meta_seat_impl_notify_key_in_impl (virtual_evdev->seat->impl,
+                                    virtual_evdev->impl_state->device,
+                                    time_us,
+                                    evcode,
+                                    key_state,
+                                    TRUE);
 }
 
 static gboolean
-notify_keyval (GTask *task)
+notify_keyval_in_impl (GTask *task)
 {
   MetaVirtualInputDeviceNative *virtual_evdev =
     g_task_get_source_object (task);
@@ -568,8 +568,9 @@ notify_keyval (GTask *task)
   if (event->time_us == CLUTTER_CURRENT_TIME)
     event->time_us = g_get_monotonic_time ();
 
-  if (!pick_keycode_for_keyval_in_current_group (virtual_device,
-                                                 event->key, &keycode, &level))
+  if (!pick_keycode_for_keyval_in_current_group_in_impl (virtual_device,
+                                                        event->key,
+                                                        &keycode, &level))
     {
       g_warning ("No keycode found for keyval %x in current group", event->key);
       goto out;
@@ -583,13 +584,13 @@ notify_keyval (GTask *task)
       goto out;
     }
 
-  key_count = update_button_count (virtual_evdev, evcode, event->key_state);
+  key_count = update_button_count_in_impl (virtual_evdev, evcode, event->key_state);
   if (key_count < 0 || key_count > 1)
     {
       g_warning ("Received multiple virtual 0x%x key %s (ignoring)", evcode,
                  event->key_state == CLUTTER_KEY_STATE_PRESSED ?
                  "presses" : "releases");
-      update_button_count (virtual_evdev, evcode, 1 - event->key_state);
+      update_button_count_in_impl (virtual_evdev, evcode, 1 - event->key_state);
       goto out;
     }
 
@@ -600,17 +601,23 @@ notify_keyval (GTask *task)
               evcode, level, key_count, virtual_evdev);
 
   if (event->key_state)
-    apply_level_modifiers (virtual_device, event->time_us, level, event->key_state);
+    {
+      apply_level_modifiers_in_impl (virtual_device, event->time_us,
+                                     level, event->key_state);
+    }
 
-  meta_seat_impl_notify_key (seat,
-                             virtual_evdev->impl_state->device,
-                             event->time_us,
-                             evcode,
-                             event->key_state,
-                             TRUE);
+  meta_seat_impl_notify_key_in_impl (seat,
+                                     virtual_evdev->impl_state->device,
+                                     event->time_us,
+                                     evcode,
+                                     event->key_state,
+                                     TRUE);
 
   if (!event->key_state)
-    apply_level_modifiers (virtual_device, event->time_us, level, event->key_state);
+    {
+      apply_level_modifiers_in_impl (virtual_device, event->time_us,
+                                     level, event->key_state);
+    }
 
  out:
   g_task_return_boolean (task, TRUE);
@@ -638,7 +645,7 @@ meta_virtual_input_device_native_notify_keyval (ClutterVirtualInputDevice *virtu
   task = g_task_new (virtual_device, NULL, NULL, NULL);
   g_task_set_task_data (task, event, g_free);
   meta_seat_impl_run_input_task (virtual_evdev->seat->impl, task,
-                                 (GSourceFunc) notify_keyval);
+                                 (GSourceFunc) notify_keyval_in_impl);
   g_object_unref (task);
 }
 
@@ -672,7 +679,7 @@ direction_to_discrete (ClutterScrollDirection direction,
 }
 
 static gboolean
-notify_discrete_scroll (GTask *task)
+notify_discrete_scroll_in_impl (GTask *task)
 {
   MetaVirtualInputDeviceNative *virtual_evdev =
     g_task_get_source_object (task);
@@ -685,11 +692,11 @@ notify_discrete_scroll (GTask *task)
 
   direction_to_discrete (event->direction, &discrete_dx, &discrete_dy);
 
-  meta_seat_impl_notify_discrete_scroll (seat,
-                                         virtual_evdev->impl_state->device,
-                                         event->time_us,
-                                         discrete_dx, discrete_dy,
-                                         event->scroll_source);
+  meta_seat_impl_notify_discrete_scroll_in_impl (seat,
+                                                 virtual_evdev->impl_state->device,
+                                                 event->time_us,
+                                                 discrete_dx, discrete_dy,
+                                                 event->scroll_source);
 
   g_task_return_boolean (task, TRUE);
   return G_SOURCE_REMOVE;
@@ -716,12 +723,12 @@ meta_virtual_input_device_native_notify_discrete_scroll (ClutterVirtualInputDevi
   task = g_task_new (virtual_device, NULL, NULL, NULL);
   g_task_set_task_data (task, event, g_free);
   meta_seat_impl_run_input_task (virtual_evdev->seat->impl, task,
-                                 (GSourceFunc) notify_discrete_scroll);
+                                 (GSourceFunc) notify_discrete_scroll_in_impl);
   g_object_unref (task);
 }
 
 static gboolean
-notify_scroll_continuous (GTask *task)
+notify_scroll_continuous_in_impl (GTask *task)
 {
   MetaVirtualInputDeviceNative *virtual_evdev =
     g_task_get_source_object (task);
@@ -731,12 +738,12 @@ notify_scroll_continuous (GTask *task)
   if (event->time_us == CLUTTER_CURRENT_TIME)
     event->time_us = g_get_monotonic_time ();
 
-  meta_seat_impl_notify_scroll_continuous (seat,
-                                           virtual_evdev->impl_state->device,
-                                           event->time_us,
-                                           event->dx, event->dy,
-                                           event->scroll_source,
-                                           CLUTTER_SCROLL_FINISHED_NONE);
+  meta_seat_impl_notify_scroll_continuous_in_impl (seat,
+                                                   virtual_evdev->impl_state->device,
+                                                   event->time_us,
+                                                   event->dx, event->dy,
+                                                   event->scroll_source,
+                                                   CLUTTER_SCROLL_FINISHED_NONE);
   g_task_return_boolean (task, TRUE);
   return G_SOURCE_REMOVE;
 }
@@ -766,12 +773,12 @@ meta_virtual_input_device_native_notify_scroll_continuous (ClutterVirtualInputDe
   task = g_task_new (virtual_device, NULL, NULL, NULL);
   g_task_set_task_data (task, event, g_free);
   meta_seat_impl_run_input_task (virtual_evdev->seat->impl, task,
-                                 (GSourceFunc) notify_scroll_continuous);
+                                 (GSourceFunc) notify_scroll_continuous_in_impl);
   g_object_unref (task);
 }
 
 static gboolean
-notify_touch_down (GTask *task)
+notify_touch_down_in_impl (GTask *task)
 {
   MetaVirtualInputDeviceNative *virtual_evdev =
     g_task_get_source_object (task);
@@ -782,21 +789,21 @@ notify_touch_down (GTask *task)
   if (event->time_us == CLUTTER_CURRENT_TIME)
     event->time_us = g_get_monotonic_time ();
 
-  touch_state = meta_seat_impl_acquire_touch_state (seat,
-                                                    event->device_slot);
+  touch_state = meta_seat_impl_acquire_touch_state_in_impl (seat,
+                                                            event->device_slot);
   if (!touch_state)
     goto out;
 
   touch_state->coords.x = event->x;
   touch_state->coords.y = event->y;
 
-  meta_seat_impl_notify_touch_event (seat,
-                                     virtual_evdev->impl_state->device,
-                                     CLUTTER_TOUCH_BEGIN,
-                                     event->time_us,
-                                     touch_state->seat_slot,
-                                     touch_state->coords.x,
-                                     touch_state->coords.y);
+  meta_seat_impl_notify_touch_event_in_impl (seat,
+                                             virtual_evdev->impl_state->device,
+                                             CLUTTER_TOUCH_BEGIN,
+                                             event->time_us,
+                                             touch_state->seat_slot,
+                                             touch_state->coords.x,
+                                             touch_state->coords.y);
 
  out:
   g_task_return_boolean (task, TRUE);
@@ -826,12 +833,12 @@ meta_virtual_input_device_native_notify_touch_down (ClutterVirtualInputDevice *v
   task = g_task_new (virtual_device, NULL, NULL, NULL);
   g_task_set_task_data (task, event, g_free);
   meta_seat_impl_run_input_task (virtual_evdev->seat->impl, task,
-                                 (GSourceFunc) notify_touch_down);
+                                 (GSourceFunc) notify_touch_down_in_impl);
   g_object_unref (task);
 }
 
 static gboolean
-notify_touch_motion (GTask *task)
+notify_touch_motion_in_impl (GTask *task)
 {
   MetaVirtualInputDeviceNative *virtual_evdev =
     g_task_get_source_object (task);
@@ -842,21 +849,21 @@ notify_touch_motion (GTask *task)
   if (event->time_us == CLUTTER_CURRENT_TIME)
     event->time_us = g_get_monotonic_time ();
 
-  touch_state = meta_seat_impl_lookup_touch_state (seat,
-                                                   event->device_slot);
+  touch_state = meta_seat_impl_lookup_touch_state_in_impl (seat,
+                                                           event->device_slot);
   if (!touch_state)
     goto out;
 
   touch_state->coords.x = event->x;
   touch_state->coords.y = event->y;
 
-  meta_seat_impl_notify_touch_event (seat,
-                                     virtual_evdev->impl_state->device,
-                                     CLUTTER_TOUCH_UPDATE,
-                                     event->time_us,
-                                     touch_state->seat_slot,
-                                     touch_state->coords.x,
-                                     touch_state->coords.y);
+  meta_seat_impl_notify_touch_event_in_impl (seat,
+                                             virtual_evdev->impl_state->device,
+                                             CLUTTER_TOUCH_UPDATE,
+                                             event->time_us,
+                                             touch_state->seat_slot,
+                                             touch_state->coords.x,
+                                             touch_state->coords.y);
 
  out:
   g_task_return_boolean (task, TRUE);
@@ -886,12 +893,12 @@ meta_virtual_input_device_native_notify_touch_motion (ClutterVirtualInputDevice
   task = g_task_new (virtual_device, NULL, NULL, NULL);
   g_task_set_task_data (task, event, g_free);
   meta_seat_impl_run_input_task (virtual_evdev->seat->impl, task,
-                                 (GSourceFunc) notify_touch_motion);
+                                 (GSourceFunc) notify_touch_motion_in_impl);
   g_object_unref (task);
 }
 
 static gboolean
-notify_touch_up (GTask *task)
+notify_touch_up_in_impl (GTask *task)
 {
   MetaVirtualInputDeviceNative *virtual_evdev =
     g_task_get_source_object (task);
@@ -902,21 +909,21 @@ notify_touch_up (GTask *task)
   if (event->time_us == CLUTTER_CURRENT_TIME)
     event->time_us = g_get_monotonic_time ();
 
-  touch_state = meta_seat_impl_lookup_touch_state (seat,
-                                                   event->device_slot);
+  touch_state = meta_seat_impl_lookup_touch_state_in_impl (seat,
+                                                           event->device_slot);
   if (!touch_state)
     goto out;
 
-  meta_seat_impl_notify_touch_event (seat,
-                                     virtual_evdev->impl_state->device,
-                                     CLUTTER_TOUCH_END,
-                                     event->time_us,
-                                     touch_state->seat_slot,
-                                     touch_state->coords.x,
-                                     touch_state->coords.y);
+  meta_seat_impl_notify_touch_event_in_impl (seat,
+                                             virtual_evdev->impl_state->device,
+                                             CLUTTER_TOUCH_END,
+                                             event->time_us,
+                                             touch_state->seat_slot,
+                                             touch_state->coords.x,
+                                             touch_state->coords.y);
 
-  meta_seat_impl_release_touch_state (virtual_evdev->seat->impl,
-                                      touch_state->seat_slot);
+  meta_seat_impl_release_touch_state_in_impl (virtual_evdev->seat->impl,
+                                              touch_state->seat_slot);
 
  out:
   g_task_return_boolean (task, TRUE);
@@ -942,7 +949,7 @@ meta_virtual_input_device_native_notify_touch_up (ClutterVirtualInputDevice *vir
   task = g_task_new (virtual_device, NULL, NULL, NULL);
   g_task_set_task_data (task, event, g_free);
   meta_seat_impl_run_input_task (virtual_evdev->seat->impl, task,
-                                 (GSourceFunc) notify_touch_up);
+                                 (GSourceFunc) notify_touch_up_in_impl);
   g_object_unref (task);
 }
 
@@ -1039,7 +1046,7 @@ meta_virtual_input_device_native_dispose (GObject *object)
       g_task_set_task_data (task, virtual_evdev->impl_state,
                             (GDestroyNotify) impl_state_free);
       meta_seat_impl_run_input_task (virtual_evdev->seat->impl, task,
-                                     (GSourceFunc) release_device);
+                                     (GSourceFunc) release_device_in_impl);
       g_object_unref (task);
 
       virtual_evdev->impl_state = NULL;


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