clutter/seat: Add seat name

This is similar to the existing seat-id that is part of MetaSeatNative,
but meant to be passed to created input capture seats.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2628>

clutter/clutter/clutter-seat.c

@@ -51,7 +51,10 @@ static guint signals[N_SIGNALS] = { 0 };
 enum
 {
   PROP_0,
+
+  PROP_NAME,
   PROP_TOUCH_MODE,
+
   N_PROPS
 };
 
@@ -65,6 +68,8 @@ struct _ClutterSeatPrivate
 
   /* Pointer a11y */
   ClutterPointerA11ySettings pointer_a11y_settings;
+
+  char *name;
 };
 
 G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE (ClutterSeat, clutter_seat, G_TYPE_OBJECT)
@@ -75,8 +80,14 @@ clutter_seat_set_property (GObject      *object,
                            const GValue *value,
                            GParamSpec   *pspec)
 {
+  ClutterSeat *seat = CLUTTER_SEAT (object);
+  ClutterSeatPrivate *priv = clutter_seat_get_instance_private (seat);
+
   switch (prop_id)
     {
+    case PROP_NAME:
+      priv->name = g_value_dup_string (value);
+      break;
     case PROP_TOUCH_MODE:
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
@@ -89,11 +100,17 @@ clutter_seat_get_property (GObject    *object,
                            GValue     *value,
                            GParamSpec *pspec)
 {
+  ClutterSeat *seat = CLUTTER_SEAT (object);
+  ClutterSeatPrivate *priv = clutter_seat_get_instance_private (seat);
+
   switch (prop_id)
     {
     case PROP_TOUCH_MODE:
       g_value_set_boolean (value, FALSE);
       break;
+    case PROP_NAME:
+      g_value_set_string (value, priv->name);
+      break;
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
     }
@@ -109,6 +126,17 @@ clutter_seat_constructed (GObject *object)
                                                  CLUTTER_SEAT (object));
 }
 
+static void
+clutter_seat_finalize (GObject *object)
+{
+  ClutterSeat *seat = CLUTTER_SEAT (object);
+  ClutterSeatPrivate *priv = clutter_seat_get_instance_private (seat);
+
+  g_clear_pointer (&priv->name, g_free);
+
+  G_OBJECT_CLASS (clutter_seat_parent_class)->finalize (object);
+}
+
 static void
 clutter_seat_class_init (ClutterSeatClass *klass)
 {
@@ -117,6 +145,7 @@ clutter_seat_class_init (ClutterSeatClass *klass)
   object_class->set_property = clutter_seat_set_property;
   object_class->get_property = clutter_seat_get_property;
   object_class->constructed = clutter_seat_constructed;
+  object_class->finalize = clutter_seat_finalize;
 
   signals[DEVICE_ADDED] =
     g_signal_new (I_("device-added"),
@@ -274,6 +303,20 @@ clutter_seat_class_init (ClutterSeatClass *klass)
                           FALSE,
                           CLUTTER_PARAM_READABLE);
 
+  /**
+   * ClutterSeat::name:
+   *
+   * The name of the seat.
+   **/
+  props[PROP_NAME] =
+    g_param_spec_string ("name",
+                         P_("Seat name"),
+                         P_("Seat name"),
+                         NULL,
+                         G_PARAM_STATIC_STRINGS |
+                         G_PARAM_READWRITE |
+                         G_PARAM_CONSTRUCT_ONLY);
+
   g_object_class_install_properties (object_class, N_PROPS, props);
 }
 
@@ -747,3 +790,11 @@ clutter_seat_ungrab (ClutterSeat *seat,
   if (seat_class->ungrab)
     return seat_class->ungrab (seat, time);
 }
+
+const char *
+clutter_seat_get_name (ClutterSeat *seat)
+{
+  ClutterSeatPrivate *priv = clutter_seat_get_instance_private (seat);
+
+  return priv->name;
+}

clutter/clutter/clutter-seat.h

@@ -172,4 +172,7 @@ gboolean clutter_seat_query_state (ClutterSeat          *seat,
                                    graphene_point_t     *coords,
                                    ClutterModifierType  *modifiers);
 
+CLUTTER_EXPORT
+const char * clutter_seat_get_name (ClutterSeat *seat);
+
 #endif /* CLUTTER_SEAT_H */

src/backends/native/meta-backend-native.c

@@ -155,6 +155,7 @@ meta_backend_native_create_default_seat (MetaBackend  *backend,
   return CLUTTER_SEAT (g_object_new (META_TYPE_SEAT_NATIVE,
                                      "backend", backend,
                                      "seat-id", seat_id,
+                                     "name", seat_id,
                                      "flags", flags,
                                      NULL));
 }