[gedit/wip/configurable] Add get_page_id

[Ignacio Casal Quinteiro <icq src gnome org>]

commit 80f39a6c3721490f1df7892871c6c898a505f54f
Author: Ignacio Casal Quinteiro <icq gnome org>
Date:   Sat Apr 27 15:06:50 2013 +0200

    Add get_page_id

 gedit/gedit-configurable.c |   24 ++++++++++++++++++++++++
 gedit/gedit-configurable.h |    2 ++
 2 files changed, 26 insertions(+), 0 deletions(-)
---
diff --git a/gedit/gedit-configurable.c b/gedit/gedit-configurable.c
index 2a0f00d..864aa37 100644
--- a/gedit/gedit-configurable.c
+++ b/gedit/gedit-configurable.c
@@ -42,6 +42,30 @@ gedit_configurable_default_init (GeditConfigurableInterface *iface)
 }
 
 /**
+ * gedit_configurable_get_page_id:
+ * @configurable: A #GeditConfigurable.
+ *
+ * Returns: (transfer none):
+ */
+const gchar *
+gedit_configurable_get_page_id (GeditConfigurable *configurable)
+{
+       GeditConfigurableInterface *iface;
+
+       g_return_val_if_fail (GEDIT_IS_CONFIGURABLE (configurable), NULL);
+
+       iface = GEDIT_CONFIGURABLE_GET_IFACE (configurable);
+
+       if (G_LIKELY (iface->get_page_id != NULL))
+       {
+               return iface->get_page_id (configurable);
+       }
+
+       /* Default implementation */
+       return NULL;
+}
+
+/**
  * gedit_configurable_get_page_name:
  * @configurable: A #GeditConfigurable.
  *
diff --git a/gedit/gedit-configurable.h b/gedit/gedit-configurable.h
index f93bd53..59b4290 100644
--- a/gedit/gedit-configurable.h
+++ b/gedit/gedit-configurable.h
@@ -51,12 +51,14 @@ struct _GeditConfigurableInterface
 {
        GTypeInterface g_iface;
 
+       const gchar *(*get_page_id)              (GeditConfigurable  *configurable);
        const gchar *(*get_page_name)            (GeditConfigurable  *configurable);
        GtkWidget   *(*create_configure_widget)  (GeditConfigurable  *configurable);
 };
 
 GType       gedit_configurable_get_type                 (void)  G_GNUC_CONST;
 
+const gchar *gedit_configurable_get_page_id             (GeditConfigurable  *configurable);
 const gchar *gedit_configurable_get_page_name           (GeditConfigurable  *configurable);
 GtkWidget   *gedit_configurable_create_configure_widget (GeditConfigurable  *configurable);