+static void
+gtk_button_activatable_interface_init (GtkActivatableIface *iface)
+{
+ iface->update = gtk_button_update;
+ iface->sync_action_properties = gtk_button_sync_action_properties;
+}
+
+static void
+activatable_update_stock_id (GtkButton *button,
+ GtkAction *action)
+{
+ if (!gtk_button_get_use_stock (button))
+ return;
+
+ gtk_button_set_label (button, gtk_action_get_stock_id (action));
+}
+
+static void
+activatable_update_short_label (GtkButton *button,
+ GtkAction *action)
+{
+ GtkWidget *child;
+ GtkWidget *image;
+
+ if (gtk_button_get_use_stock (button))
+ return;
+
+ image = gtk_button_get_image (button);
+
+ /* Dont touch custom child... */
+ child = gtk_bin_get_child (GTK_BIN (button));
+ if (GTK_IS_IMAGE (image) ||
+ child == NULL ||
+ GTK_IS_LABEL (child))
+ {
+ gtk_button_set_label (button, gtk_action_get_short_label (action));
+ gtk_button_set_use_underline (button, TRUE);
+ }
+}
+
+static void
+activatable_update_icon_name (GtkButton *button,
+ GtkAction *action)
+{
+ GtkWidget *image;
+
+ if (gtk_button_get_use_stock (button))
+ return;
+
+ image = gtk_button_get_image (button);
+
+ if (GTK_IS_IMAGE (image) &&
+ (gtk_image_get_storage_type (GTK_IMAGE (image)) == GTK_IMAGE_EMPTY ||
+ gtk_image_get_storage_type (GTK_IMAGE (image)) == GTK_IMAGE_ICON_NAME))
+ gtk_image_set_from_icon_name (GTK_IMAGE (image),
+ gtk_action_get_icon_name (action), GTK_ICON_SIZE_MENU);
+}
+
+static void
+activatable_update_gicon (GtkButton *button,
+ GtkAction *action)
+{
+ GtkWidget *image = gtk_button_get_image (button);
+ GIcon *icon = gtk_action_get_gicon (action);
+
+ if (GTK_IS_IMAGE (image) &&
+ (gtk_image_get_storage_type (GTK_IMAGE (image)) == GTK_IMAGE_EMPTY ||
+ gtk_image_get_storage_type (GTK_IMAGE (image)) == GTK_IMAGE_GICON))
+ gtk_image_set_from_gicon (GTK_IMAGE (image), icon, GTK_ICON_SIZE_BUTTON);
+}
+
+static void
+gtk_button_update (GtkActivatable *activatable,
+ GtkAction *action,
+ const gchar *property_name)
+{
+ GtkButtonPrivate *priv = GTK_BUTTON_GET_PRIVATE (activatable);
+
+ if (strcmp (property_name, "visible") == 0)
+ {
+ if (gtk_action_is_visible (action))
+ gtk_widget_show (GTK_WIDGET (activatable));
+ else
+ gtk_widget_hide (GTK_WIDGET (activatable));
+ }
+ else if (strcmp (property_name, "sensitive") == 0)
+ gtk_widget_set_sensitive (GTK_WIDGET (activatable), gtk_action_is_sensitive (action));
+
+ if (!priv->use_action_appearance)
+ return;
+
+ if (strcmp (property_name, "stock-id") == 0)
+ activatable_update_stock_id (GTK_BUTTON (activatable), action);
+ else if (strcmp (property_name, "gicon") == 0)
+ activatable_update_gicon (GTK_BUTTON (activatable), action);
+ else if (strcmp (property_name, "short-label") == 0)
+ activatable_update_short_label (GTK_BUTTON (activatable), action);
+ else if (strcmp (property_name, "icon-name") == 0)
+ activatable_update_icon_name (GTK_BUTTON (activatable), action);
+}
+
+static void
+gtk_button_sync_action_properties (GtkActivatable *activatable,
+ GtkAction *action)
+{
+ GtkButtonPrivate *priv = GTK_BUTTON_GET_PRIVATE (activatable);
+
+ if (!action)
+ return;
+
+ if (gtk_action_is_visible (action))
+ gtk_widget_show (GTK_WIDGET (activatable));
+ else
+ gtk_widget_hide (GTK_WIDGET (activatable));
+
+ gtk_widget_set_sensitive (GTK_WIDGET (activatable), gtk_action_is_sensitive (action));
+
+ if (priv->use_action_appearance)
+ {
+ activatable_update_stock_id (GTK_BUTTON (activatable), action);
+ activatable_update_short_label (GTK_BUTTON (activatable), action);
+ activatable_update_gicon (GTK_BUTTON (activatable), action);
+ activatable_update_icon_name (GTK_BUTTON (activatable), action);
+ }
+}
+
+static void
+gtk_button_set_related_action (GtkButton *button,
+ GtkAction *action)
+{
+ GtkButtonPrivate *priv = GTK_BUTTON_GET_PRIVATE (button);
+
+ if (priv->action == action)
+ return;
+
+ /* This should be a default handler, but for compatibility reasons
+ * we need to support derived classes that don't chain up their
+ * clicked handler.
+ */
+ g_signal_handlers_disconnect_by_func (button, gtk_real_button_clicked, NULL);
+ if (action)
+ g_signal_connect_after (button, "clicked",
+ G_CALLBACK (gtk_real_button_clicked), NULL);
+
+ gtk_activatable_do_set_related_action (GTK_ACTIVATABLE (button), action);
+
+ priv->action = action;
+}
+
+static void
+gtk_button_set_use_action_appearance (GtkButton *button,
+ gboolean use_appearance)
+{
+ GtkButtonPrivate *priv = GTK_BUTTON_GET_PRIVATE (button);
+
+ if (priv->use_action_appearance != use_appearance)
+ {
+ priv->use_action_appearance = use_appearance;
+
+ gtk_activatable_sync_action_properties (GTK_ACTIVATABLE (button), priv->action);
+ }
+}
+
+/**
+ * gtk_button_new:
+ *
+ * Creates a new #GtkButton widget. To add a child widget to the button,
+ * use gtk_container_add().
+ *
+ * Returns: The newly created #GtkButton widget.
+ */