Adding in support for the GetChildren function.

2 files changed, 69 insertions, 0 deletions

diff --git a/libdbusmenu-glib/dbus-menu.xml b/libdbusmenu-glib/dbus-menu.xml
index e2d872b..d2df400 100644
--- a/libdbusmenu-glib/dbus-menu.xml
+++ b/libdbusmenu-glib/dbus-menu.xml
@@ -88,6 +88,12 @@ An item is represented as a struct following this format:
 			<arg type="a(ua{sv})" name="properties" direction="out" />
 		</method>
 
+		<method name="GetChildren">
+			<arg type="u" name="id" direction="in" />
+			<arg type="as" name="propertyNames" direction="in" />
+			<arg type="a(ua{sv})" name="properties" direction="out" />
+		</method>
+
 <!--
 Each menu item has a set of properties. Property keys are in menuitem.h:
 
diff --git a/libdbusmenu-glib/server.c b/libdbusmenu-glib/server.c
index 0825997..0971162 100644
--- a/libdbusmenu-glib/server.c
+++ b/libdbusmenu-glib/server.c
@@ -40,6 +40,7 @@ static gboolean _dbusmenu_server_get_property (DbusmenuServer * server, guint id
 static gboolean _dbusmenu_server_get_properties (DbusmenuServer * server, guint id, GPtrArray * properties, GHashTable ** dict, GError ** error);
 static gboolean _dbusmenu_server_get_group_properties (DbusmenuServer * server, GArray * ids, GArray * properties, GHashTable ** values, GError ** error);
 static gboolean _dbusmenu_server_event (DbusmenuServer * server, guint id, gchar * eventid, GValue * data, GError ** error);
+static gboolean _dbusmenu_server_get_children (DbusmenuServer * server, guint id, GPtrArray * properties, GPtrArray ** output, GError ** error);
 
 #include "dbusmenu-server.h"
 
@@ -473,6 +474,68 @@ _dbusmenu_server_get_group_properties (DbusmenuServer * server, GArray * ids, GA
 	return FALSE;
 }
 
+static void
+_gvalue_array_append_uint(GValueArray *array, guint i)
+{
+	GValue value = {0};
+
+	g_value_init(&value, G_TYPE_UINT);
+	g_value_set_uint(&value, i);
+	g_value_array_append(array, &value);
+	g_value_unset(&value);
+}
+
+static void
+_gvalue_array_append_hashtable(GValueArray *array, GHashTable * dict)
+{
+	GValue value = {0};
+
+	g_value_init(&value, dbus_g_type_get_map("GHashTable", G_TYPE_STRING, G_TYPE_VALUE));
+	g_value_set_boxed(&value, dict);
+	g_value_array_append(array, &value);
+	g_value_unset(&value);
+}
+
+static void
+serialize_menuitem(gpointer data, gpointer user_data)
+{
+	DbusmenuMenuitem * mi = DBUSMENU_MENUITEM(data);
+	GPtrArray * output = (GPtrArray *)(user_data);
+
+	guint id = dbusmenu_menuitem_get_id(mi);
+	GHashTable * dict = dbusmenu_menuitem_properties_copy(mi);
+
+	GValueArray * item = g_value_array_new(1);
+	_gvalue_array_append_uint(item, id);
+	_gvalue_array_append_hashtable(item, dict);
+
+	g_ptr_array_add(output, item);
+}
+
+static gboolean
+_dbusmenu_server_get_children (DbusmenuServer * server, guint id, GPtrArray * properties, GPtrArray ** output, GError ** error)
+{
+	DbusmenuServerPrivate * priv = DBUSMENU_SERVER_GET_PRIVATE(server);
+	DbusmenuMenuitem * mi = id == 0 ? priv->root : dbusmenu_menuitem_find_id(priv->root, id);
+
+	if (mi == NULL) {
+		if (error != NULL) {
+			g_set_error(error,
+			            error_quark(),
+			            INVALID_MENUITEM_ID,
+			            "The ID supplied %d does not refer to a menu item we have",
+			            id);
+		}
+		return FALSE;
+	}
+
+	*output = g_ptr_array_new();
+	GList * children = dbusmenu_menuitem_get_children(mi);
+	g_list_foreach(children, serialize_menuitem, *output);
+
+	return TRUE;
+}
+
 static gboolean
 _dbusmenu_server_event (DbusmenuServer * server, guint id, gchar * eventid, GValue * data, GError ** error)
 {