a11y: Simplify the ATContext::state-change signal

We cannot pass all the data we pass to the virtual function, because the
types are private, but the class and the signal are public API.

The signal is just a notification, so we can decouple the virtual
function (which stays the same, for internal types that implement the
ATContext API contract) from the signal.

diff --git a/gtk/gtkatcontext.c b/gtk/gtkatcontext.c
index e1e2edd59914ab2b9ace767ea24b6734cff7363c..6686e3f9a93a9b9108959b512ced6a0971acbf6d 100644 (file)
--- a/gtk/gtkatcontext.c
+++ b/gtk/gtkatcontext.c
@@ -175,12 +175,6 @@ gtk_at_context_class_init (GtkATContextClass *klass)
   /**
    * GtkATContext::state-change:
    * @self: the #GtkATContext
-   * @changed_states: flags for the changed states
-   * @changed_properties: flags for the changed properties
-   * @changed_relations: flags for the changed relations
-   * @states: the new states
-   * @properties: the new properties
-   * @relations: the new relations
    *
    * Emitted when the attributes of the accessible for the
    * #GtkATContext instance change.
@@ -189,12 +183,10 @@ gtk_at_context_class_init (GtkATContextClass *klass)
     g_signal_new ("state-change",
                   G_TYPE_FROM_CLASS (gobject_class),
                   G_SIGNAL_RUN_FIRST,
-                  G_STRUCT_OFFSET (GtkATContextClass, state_change),
+                  0,
                   NULL, NULL,
                   NULL,
-                  G_TYPE_NONE, 6,
-                  G_TYPE_UINT, G_TYPE_UINT, G_TYPE_UINT,
-                  G_TYPE_POINTER, G_TYPE_POINTER, G_TYPE_POINTER);
+                  G_TYPE_NONE, 0);
 
   g_object_class_install_properties (gobject_class, N_PROPS, obj_props);
 }
@@ -438,9 +430,10 @@ gtk_at_context_update (GtkATContext *self)
   GtkAccessibleRelationChange changed_relations =
     gtk_accessible_attribute_set_get_changed (self->relations);
 
-  g_signal_emit (self, obj_signals[STATE_CHANGE], 0,
-                 changed_states, changed_properties, changed_relations,
-                 self->states, self->properties, self->relations);
+  GTK_AT_CONTEXT_GET_CLASS (self)->state_change (self,
+                                                 changed_states, changed_properties, changed_relations,
+                                                 self->states, self->properties, self->relations);
+  g_signal_emit (self, obj_signals[STATE_CHANGE], 0);
 
   self->updated_properties = 0;
   self->updated_relations = 0;