static GHashTable *listener_list = NULL;
static gint listener_idx = 1;
+static GSList *key_listener_list = NULL;
+static guint key_snooper_id = 0;
typedef struct _GailUtilListenerInfo GailUtilListenerInfo;
typedef struct _GailKeyEventInfo GailKeyEventInfo;
}
}
+static AtkKeyEventStruct *
+atk_key_event_from_gdk_event_key (GdkEventKey *key)
+{
+ AtkKeyEventStruct *event = g_new0 (AtkKeyEventStruct, 1);
+ switch (key->type)
+ {
+ case GDK_KEY_PRESS:
+ event->type = ATK_KEY_EVENT_PRESS;
+ break;
+ case GDK_KEY_RELEASE:
+ event->type = ATK_KEY_EVENT_RELEASE;
+ break;
+ default:
+ g_assert_not_reached ();
+ return NULL;
+ }
+ event->state = key->state;
+ event->keyval = key->keyval;
+ event->length = key->length;
+ if (key->string && key->string [0] &&
+ (key->state & GDK_CONTROL_MASK ||
+ g_unichar_isgraph (g_utf8_get_char (key->string))))
+ {
+ event->string = key->string;
+ }
+ else if (key->type == GDK_KEY_PRESS ||
+ key->type == GDK_KEY_RELEASE)
+ {
+ event->string = gdk_keyval_name (key->keyval);
+ }
+ event->keycode = key->hardware_keycode;
+ event->timestamp = key->time;
+#ifdef GAIL_DEBUG
+ g_print ("GailKey:\tsym %u\n\tmods %x\n\tcode %u\n\ttime %lx\n",
+ (unsigned int) event->keyval,
+ (unsigned int) event->state,
+ (unsigned int) event->keycode,
+ (unsigned long int) event->timestamp);
+#endif
+ return event;
+}
+
+typedef struct {
+ AtkKeySnoopFunc func;
+ gpointer data;
+ guint key;
+} KeyEventListener;
+
+static gint
+gail_key_snooper (GtkWidget *the_widget,
+ GdkEventKey *event,
+ gpointer data)
+{
+ GSList *l;
+ AtkKeyEventStruct *atk_event;
+ gboolean result;
+
+ atk_event = atk_key_event_from_gdk_event_key (event);
+
+ result = FALSE;
+
+ for (l = key_listener_list; l; l = l->next)
+ {
+ KeyEventListener *listener = l->data;
+
+ result |= listener->func (atk_event, listener->data);
+ }
+ g_free (atk_event);
+
+ return result;
+}
+
+static guint
+gail_util_add_key_event_listener (AtkKeySnoopFunc listener_func,
+ gpointer listener_data)
+{
+ static guint key = 0;
+ KeyEventListener *listener;
+
+ if (key_snooper_id == 0)
+ key_snooper_id = gtk_key_snooper_install (gail_key_snooper, NULL);
+
+ key++;
+
+ listener = g_slice_new0 (KeyEventListener);
+ listener->func = listener_func;
+ listener->data = listener_data;
+ listener->key = key;
+
+ key_listener_list = g_slist_append (key_listener_list, listener);
+
+ return key;
+}
+
+static void
+gail_util_remove_key_event_listener (guint listener_key)
+{
+ GSList *l;
+
+ for (l = key_listener_list; l; l = l->next)
+ {
+ KeyEventListener *listener = l->data;
+
+ if (listener->key == listener_key)
+ {
+ g_slice_free (KeyEventListener, listener);
+ key_listener_list = g_slist_delete_link (key_listener_list, l);
+
+ break;
+ }
+ }
+
+ if (key_listener_list == NULL)
+ {
+ gtk_key_snooper_remove (key_snooper_id);
+ key_snooper_id = 0;
+ }
+}
+
static AtkObject *
gail_util_get_root (void)
{
atk_class->add_global_event_listener = gail_util_add_global_event_listener;
atk_class->remove_global_event_listener = gail_util_remove_global_event_listener;
+ atk_class->add_key_event_listener = gail_util_add_key_event_listener;
+ atk_class->remove_key_event_listener = gail_util_remove_key_event_listener;
atk_class->get_root = gail_util_get_root;
atk_class->get_toolkit_name = gail_util_get_toolkit_name;
atk_class->get_toolkit_version = gail_util_get_toolkit_version;