From 25b78133a2075185fe2d94925f446927c1b85b9a Mon Sep 17 00:00:00 2001
From: Chris Coulson <chrisccoulson@ubuntu.com>
Date: Wed, 30 Mar 2011 19:43:02 +0100
Subject: - Don't change the type of existing menu items in the server. This  
 isn't handled in the client too well - Handle a GtkMenuItem's GtkLabel being
 removed too

---
 libdbusmenu-gtk/parser.c | 74 ++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 62 insertions(+), 12 deletions(-)

(limited to 'libdbusmenu-gtk/parser.c')

diff --git a/libdbusmenu-gtk/parser.c b/libdbusmenu-gtk/parser.c
index fc9a3fe..037c362 100644
--- a/libdbusmenu-gtk/parser.c
+++ b/libdbusmenu-gtk/parser.c
@@ -756,12 +756,43 @@ find_menu_label (GtkWidget *widget)
   return label;
 }
 
+static gboolean
+recreate_menu_item_in_idle_cb (gpointer data)
+{
+  DbusmenuMenuitem * child = (DbusmenuMenuitem *)data;
+  DbusmenuMenuitem * parent = dbusmenu_menuitem_get_parent (child);
+  g_object_unref (child);
+  if (parent == NULL)
+    {
+      return FALSE;
+    }
+  ParserData * pdata = g_object_get_data (G_OBJECT (child), PARSER_DATA);
+  /* Keep a pointer to the GtkMenuItem, as pdata->widget might be
+   * invalidated when we delete the DbusmenuMenuitem
+   */
+  GtkWidget * menuitem = pdata->widget;
+
+  dbusmenu_menuitem_child_delete (parent, child);
+
+  RecurseContext recurse = {0};
+  recurse.toplevel = gtk_widget_get_toplevel(menuitem);
+  recurse.parent = parent;
+
+  parse_menu_structure_helper(menuitem, &recurse);
+
+  return FALSE;
+}
+
 static void
 label_notify_cb (GtkWidget  *widget,
                  GParamSpec *pspec,
                  gpointer    data)
 {
   DbusmenuMenuitem *child = (DbusmenuMenuitem *)data;
+  GValue prop_value = {0};
+
+  g_value_init (&prop_value, pspec->value_type); 
+  g_object_get_property (G_OBJECT (widget), pspec->name, &prop_value);
 
   if (pspec->name == g_intern_static_string ("label"))
     {
@@ -771,6 +802,24 @@ label_notify_cb (GtkWidget  *widget,
                                       text);
       g_free (text);
     }
+  else if (pspec->name == g_intern_static_string ("parent"))
+    {
+      if (GTK_WIDGET (g_value_get_object (&prop_value)) == NULL)
+        {
+          /* This label is being removed from its GtkMenuItem. The
+           * menuitem becomes a separator now. As the client doesn't handle
+           * changing types so well, we remove the current DbusmenuMenuitem
+           * and add a new one.
+           *
+           * Note, we have to defer this to idle, as we are called before
+           * bin->child member of our old parent is invalidated. If we go ahead
+           * and call parse_menu_structure_helper now, the GtkMenuItem will
+           * still appear to have a label and we never convert it to a separator
+           */
+          g_object_ref (child);
+          g_idle_add ((GSourceFunc)recreate_menu_item_in_idle_cb, child);
+        } 
+    }
 }
 
 static void
@@ -888,24 +937,25 @@ widget_notify_cb (GtkWidget  *widget,
     }
   else if (pspec->name == g_intern_static_string ("label"))
     {
-      ParserData *pdata = g_object_get_data (G_OBJECT (widget), PARSER_DATA);
+      ParserData *pdata = g_object_get_data (G_OBJECT (child), PARSER_DATA);
       if (!pdata->label)
         {
           /* GtkMenuItem's can start life as a separator if they have no child
            * GtkLabel. In this case, we need to convert the DbusmenuMenuitem from
-           * a separator to a normal menuitem if the application adds a label
+           * a separator to a normal menuitem if the application adds a label.
+           * As changing types isn't handled too well by the client, we delete
+           * this menuitem for now and then recreate it
            */
-          GtkWidget *label = find_menu_label (widget);
-          /* This should never fail */
-          g_return_if_fail (label != NULL);
+          DbusmenuMenuitem * parent = dbusmenu_menuitem_get_parent (child);
+          dbusmenu_menuitem_child_delete (parent, child);
 
-          dbusmenu_menuitem_property_remove (child, DBUSMENU_MENUITEM_PROP_TYPE);
-          pdata->label = label;
-          g_signal_connect (G_OBJECT (label),
-                            "notify",
-                            G_CALLBACK (label_notify_cb),
-                            child);
-          g_object_add_weak_pointer(G_OBJECT (label), (gpointer*)&pdata->label);
+	  RecurseContext recurse = {0};
+	  recurse.toplevel = gtk_widget_get_toplevel(widget);
+	  recurse.parent = parent;
+
+	  parse_menu_structure_helper(widget, &recurse);
+
+          return;
         }
                       
       dbusmenu_menuitem_property_set (child,
-- 
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