[mutter/wip/carlosg/input-in-backends: 6/18] clutter: Remove ClutterEventExtender interface

[Carlos Garnacho <carlosg src gnome org>]

commit 6dcfe0d1b370ac3b2793284edceb93b735b0838d
Author: Carlos Garnacho <carlosg gnome org>
Date:   Tue Mar 26 19:40:45 2019 +0100

    clutter: Remove ClutterEventExtender interface
    
    Just move those methods to ClutterDeviceManager, since the two available
    ones want to implement it.
    
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/672

 clutter/clutter/clutter-backend.c                  | 20 +++++++++----------
 clutter/clutter/clutter-device-manager-private.h   | 22 ---------------------
 clutter/clutter/clutter-device-manager.c           |  9 ---------
 clutter/clutter/clutter-device-manager.h           | 10 +++++++++-
 .../clutter/evdev/clutter-device-manager-evdev.c   | 19 +++++-------------
 clutter/clutter/x11/clutter-device-manager-xi2.c   | 23 +++++++---------------
 6 files changed, 31 insertions(+), 72 deletions(-)
---
diff --git a/clutter/clutter/clutter-backend.c b/clutter/clutter/clutter-backend.c
index be3902a2f..e2f388743 100644
--- a/clutter/clutter/clutter-backend.c
+++ b/clutter/clutter/clutter-backend.c
@@ -826,15 +826,15 @@ _clutter_backend_copy_event_data (ClutterBackend     *backend,
                                   const ClutterEvent *src,
                                   ClutterEvent       *dest)
 {
-  ClutterEventExtenderInterface *iface;
   ClutterBackendClass *klass;
 
   klass = CLUTTER_BACKEND_GET_CLASS (backend);
-  if (CLUTTER_IS_EVENT_EXTENDER (backend->device_manager))
+  if (backend->device_manager)
     {
-      iface = CLUTTER_EVENT_EXTENDER_GET_IFACE (backend->device_manager);
-      iface->copy_event_data (CLUTTER_EVENT_EXTENDER (backend->device_manager),
-                              src, dest);
+      ClutterDeviceManagerClass *device_manager_class;
+
+      device_manager_class = CLUTTER_DEVICE_MANAGER_GET_CLASS (backend->device_manager);
+      device_manager_class->copy_event_data (backend->device_manager, src, dest);
     }
   else if (klass->copy_event_data != NULL)
     klass->copy_event_data (backend, src, dest);
@@ -844,16 +844,16 @@ void
 _clutter_backend_free_event_data (ClutterBackend *backend,
                                   ClutterEvent   *event)
 {
-  ClutterEventExtenderInterface *iface;
   ClutterBackendClass *klass;
 
   klass = CLUTTER_BACKEND_GET_CLASS (backend);
 
-  if (CLUTTER_IS_EVENT_EXTENDER (backend->device_manager))
+  if (backend->device_manager)
     {
-      iface = CLUTTER_EVENT_EXTENDER_GET_IFACE (backend->device_manager);
-      iface->free_event_data (CLUTTER_EVENT_EXTENDER (backend->device_manager),
-                              event);
+      ClutterDeviceManagerClass *device_manager_class;
+
+      device_manager_class = CLUTTER_DEVICE_MANAGER_GET_CLASS (backend->device_manager);
+      device_manager_class->free_event_data (backend->device_manager, event);
     }
   else if (klass->free_event_data != NULL)
     klass->free_event_data (backend, event);
diff --git a/clutter/clutter/clutter-device-manager-private.h 
b/clutter/clutter/clutter-device-manager-private.h
index 712dd404a..86355285a 100644
--- a/clutter/clutter/clutter-device-manager-private.h
+++ b/clutter/clutter/clutter-device-manager-private.h
@@ -193,28 +193,6 @@ struct _ClutterInputDeviceClass
                                    ClutterEmitInputDeviceEvent emit_event_func);
 };
 
-/* Platform-dependent interface */
-typedef struct _ClutterEventExtender ClutterEventExtender;
-typedef struct _ClutterEventExtenderInterface ClutterEventExtenderInterface;
-
-#define CLUTTER_TYPE_EVENT_EXTENDER         (clutter_event_extender_get_type ())
-#define CLUTTER_EVENT_EXTENDER(o)           (G_TYPE_CHECK_INSTANCE_CAST ((o), CLUTTER_TYPE_EVENT_EXTENDER, 
ClutterEventExtender))
-#define CLUTTER_IS_EVENT_EXTENDER(o)        (G_TYPE_CHECK_INSTANCE_TYPE ((o), CLUTTER_TYPE_EVENT_EXTENDER))
-#define CLUTTER_EVENT_EXTENDER_GET_IFACE(o) (G_TYPE_INSTANCE_GET_INTERFACE ((o), 
CLUTTER_TYPE_EVENT_EXTENDER, ClutterEventExtenderInterface))
-
-struct _ClutterEventExtenderInterface
-{
-  GTypeInterface g_iface;
-
-  void (* copy_event_data) (ClutterEventExtender *event_extender,
-                            const ClutterEvent   *src,
-                            ClutterEvent         *dest);
-  void (* free_event_data) (ClutterEventExtender *event_extender,
-                            ClutterEvent         *event);
-};
-
-GType           clutter_event_extender_get_type        (void) G_GNUC_CONST;
-
 /* device manager */
 void            _clutter_device_manager_add_device              (ClutterDeviceManager *device_manager,
                                                                  ClutterInputDevice   *device);
diff --git a/clutter/clutter/clutter-device-manager.c b/clutter/clutter/clutter-device-manager.c
index 1158f97b9..5c2b3c338 100644
--- a/clutter/clutter/clutter-device-manager.c
+++ b/clutter/clutter/clutter-device-manager.c
@@ -91,15 +91,6 @@ G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE (ClutterDeviceManager,
                                      clutter_device_manager,
                                      G_TYPE_OBJECT)
 
-G_DEFINE_INTERFACE (ClutterEventExtender,
-                    clutter_event_extender,
-                    CLUTTER_TYPE_DEVICE_MANAGER)
-
-static void
-clutter_event_extender_default_init (ClutterEventExtenderInterface *iface)
-{
-}
-
 static void
 clutter_device_manager_set_property (GObject      *gobject,
                                      guint         prop_id,
diff --git a/clutter/clutter/clutter-device-manager.h b/clutter/clutter/clutter-device-manager.h
index 2927f1296..f539c7c73 100644
--- a/clutter/clutter/clutter-device-manager.h
+++ b/clutter/clutter/clutter-device-manager.h
@@ -123,8 +123,16 @@ struct _ClutterDeviceManagerClass
   /* Keyboard accessbility */
   void                (* apply_kbd_a11y_settings) (ClutterDeviceManager   *device_manger,
                                                    ClutterKbdA11ySettings *settings);
+
+  /* Event platform data */
+  void (* copy_event_data) (ClutterDeviceManager *device_manager,
+                            const ClutterEvent   *src,
+                            ClutterEvent         *dest);
+  void (* free_event_data) (ClutterDeviceManager *device_manager,
+                            ClutterEvent         *event);
+
   /* padding */
-  gpointer _padding[6];
+  gpointer _padding[4];
 };
 
 CLUTTER_EXPORT
diff --git a/clutter/clutter/evdev/clutter-device-manager-evdev.c 
b/clutter/clutter/evdev/clutter-device-manager-evdev.c
index 84b0aad49..14da4a7c9 100644
--- a/clutter/clutter/evdev/clutter-device-manager-evdev.c
+++ b/clutter/clutter/evdev/clutter-device-manager-evdev.c
@@ -110,14 +110,10 @@ struct _ClutterDeviceManagerEvdevPrivate
   GList *free_device_ids;
 };
 
-static void clutter_device_manager_evdev_event_extender_init (ClutterEventExtenderInterface *iface);
-
 G_DEFINE_TYPE_WITH_CODE (ClutterDeviceManagerEvdev,
                          clutter_device_manager_evdev,
                          CLUTTER_TYPE_DEVICE_MANAGER,
-                         G_ADD_PRIVATE (ClutterDeviceManagerEvdev)
-                         G_IMPLEMENT_INTERFACE (CLUTTER_TYPE_EVENT_EXTENDER,
-                                                clutter_device_manager_evdev_event_extender_init))
+                         G_ADD_PRIVATE (ClutterDeviceManagerEvdev))
 
 static ClutterOpenDeviceCallback  device_open_callback;
 static ClutterCloseDeviceCallback device_close_callback;
@@ -148,7 +144,7 @@ static const char *device_type_str[] = {
  */
 
 static void
-clutter_device_manager_evdev_copy_event_data (ClutterEventExtender *event_extender,
+clutter_device_manager_evdev_copy_event_data (ClutterDeviceManager *device_manager,
                                               const ClutterEvent   *src,
                                               ClutterEvent         *dest)
 {
@@ -160,7 +156,7 @@ clutter_device_manager_evdev_copy_event_data (ClutterEventExtender *event_extend
 }
 
 static void
-clutter_device_manager_evdev_free_event_data (ClutterEventExtender *event_extender,
+clutter_device_manager_evdev_free_event_data (ClutterDeviceManager *device_manager,
                                               ClutterEvent         *event)
 {
   ClutterEventEvdev *event_evdev;
@@ -170,13 +166,6 @@ clutter_device_manager_evdev_free_event_data (ClutterEventExtender *event_extend
     _clutter_event_evdev_free (event_evdev);
 }
 
-static void
-clutter_device_manager_evdev_event_extender_init (ClutterEventExtenderInterface *iface)
-{
-  iface->copy_event_data = clutter_device_manager_evdev_copy_event_data;
-  iface->free_event_data = clutter_device_manager_evdev_free_event_data;
-}
-
 /*
  * ClutterEventSource for reading input devices
  */
@@ -2047,6 +2036,8 @@ clutter_device_manager_evdev_class_init (ClutterDeviceManagerEvdevClass *klass)
   manager_class->get_supported_virtual_device_types = 
clutter_device_manager_evdev_get_supported_virtual_device_types;
   manager_class->compress_motion = clutter_device_manager_evdev_compress_motion;
   manager_class->apply_kbd_a11y_settings = clutter_device_manager_evdev_apply_kbd_a11y_settings;
+  manager_class->copy_event_data = clutter_device_manager_evdev_copy_event_data;
+  manager_class->free_event_data = clutter_device_manager_evdev_free_event_data;
 }
 
 static void
diff --git a/clutter/clutter/x11/clutter-device-manager-xi2.c 
b/clutter/clutter/x11/clutter-device-manager-xi2.c
index 3a27b69e5..5128a16b2 100644
--- a/clutter/clutter/x11/clutter-device-manager-xi2.c
+++ b/clutter/clutter/x11/clutter-device-manager-xi2.c
@@ -96,18 +96,14 @@ enum
 
 static Atom clutter_input_axis_atoms[N_AXIS_ATOMS] = { 0, };
 
-static void clutter_event_extender_iface_init   (ClutterEventExtenderInterface *iface);
-
 #define clutter_device_manager_xi2_get_type     _clutter_device_manager_xi2_get_type
 
-G_DEFINE_TYPE_WITH_CODE (ClutterDeviceManagerXI2,
-                         clutter_device_manager_xi2,
-                         CLUTTER_TYPE_DEVICE_MANAGER,
-                         G_IMPLEMENT_INTERFACE (CLUTTER_TYPE_EVENT_EXTENDER,
-                                                clutter_event_extender_iface_init))
+G_DEFINE_TYPE (ClutterDeviceManagerXI2,
+               clutter_device_manager_xi2,
+               CLUTTER_TYPE_DEVICE_MANAGER)
 
 static void
-clutter_device_manager_x11_copy_event_data (ClutterEventExtender *event_extender,
+clutter_device_manager_xi2_copy_event_data (ClutterDeviceManager *device_manager,
                                             const ClutterEvent   *src,
                                             ClutterEvent         *dest)
 {
@@ -119,7 +115,7 @@ clutter_device_manager_x11_copy_event_data (ClutterEventExtender *event_extender
 }
 
 static void
-clutter_device_manager_x11_free_event_data (ClutterEventExtender *event_extender,
+clutter_device_manager_xi2_free_event_data (ClutterDeviceManager *device_manager,
                                             ClutterEvent         *event)
 {
   gpointer event_x11;
@@ -129,13 +125,6 @@ clutter_device_manager_x11_free_event_data (ClutterEventExtender *event_extender
     _clutter_event_x11_free (event_x11);
 }
 
-static void
-clutter_event_extender_iface_init (ClutterEventExtenderInterface *iface)
-{
-  iface->copy_event_data = clutter_device_manager_x11_copy_event_data;
-  iface->free_event_data = clutter_device_manager_x11_free_event_data;
-}
-
 static void
 translate_valuator_class (Display             *xdisplay,
                           ClutterInputDevice  *device,
@@ -2220,6 +2209,8 @@ clutter_device_manager_xi2_class_init (ClutterDeviceManagerXI2Class *klass)
   manager_class->create_virtual_device = clutter_device_manager_xi2_create_virtual_device;
   manager_class->get_supported_virtual_device_types = 
clutter_device_manager_xi2_get_supported_virtual_device_types;
   manager_class->apply_kbd_a11y_settings = clutter_device_manager_x11_apply_kbd_a11y_settings;
+  manager_class->copy_event_data = clutter_device_manager_xi2_copy_event_data;
+  manager_class->free_event_data = clutter_device_manager_xi2_free_event_data;
 }
 
 static void