[glade] Updated GtkAssistant support Fixed bug #664276 "Can't add widgets to a GtkAssistant" Make assistant

[Juan Pablo Ugarte <jpu src gnome org>]

commit 787439b816f4cf79cfe45d81443338dc4a177644
Author: Juan Pablo Ugarte <juanpablougarte gmail com>
Date:   Mon Sep 17 20:08:21 2012 -0300

    Updated GtkAssistant support
    Fixed bug #664276 "Can't add widgets to a GtkAssistant"
    Make assistant update current page when a child is selected in the project.

 plugins/gtk+/glade-gtk.c |   82 +++++++++++++++++++++++++++++++++++++++------
 plugins/gtk+/gtk+.xml.in |    6 +++-
 2 files changed, 76 insertions(+), 12 deletions(-)
---
diff --git a/plugins/gtk+/glade-gtk.c b/plugins/gtk+/glade-gtk.c
index 278d590..cb1ca4a 100644
--- a/plugins/gtk+/glade-gtk.c
+++ b/plugins/gtk+/glade-gtk.c
@@ -7923,7 +7923,6 @@ glade_gtk_assistant_update_page_type (GtkAssistant * assistant)
     {
       page = gtk_assistant_get_nth_page (assistant, i);
       gtk_assistant_set_page_type (assistant, page, GTK_ASSISTANT_PAGE_CONTENT);
-
     }
 
   /* Now we have set page-type in every page, force button update */
@@ -7931,8 +7930,6 @@ glade_gtk_assistant_update_page_type (GtkAssistant * assistant)
     {
       page = gtk_assistant_get_nth_page (assistant, i);
       gtk_assistant_set_page_complete (assistant, page, TRUE);
-      gtk_assistant_set_current_page (assistant, i);
-      gtk_assistant_update_buttons_state (assistant);
     }
 
   if (current >= 0)
@@ -7982,6 +7979,48 @@ glade_gtk_assistant_parse_finished (GladeProject * project, GObject * object)
     }
 }
 
+GList *
+glade_gtk_assistant_get_children (GladeWidgetAdaptor *adaptor,
+                                  GObject *container)
+{
+  GtkAssistant *assist = GTK_ASSISTANT (container);
+  gint i, n_pages = gtk_assistant_get_n_pages (assist);
+  GList *children = NULL, *parent_children;
+
+  /* Chain up */
+  if (GWA_GET_CLASS (GTK_TYPE_WINDOW)->get_children)
+    parent_children = GWA_GET_CLASS (GTK_TYPE_WINDOW)->get_children (adaptor, container);
+  else
+    parent_children = NULL;
+  
+  for (i = 0; i < n_pages; i++)
+    children = g_list_prepend (children, gtk_assistant_get_nth_page (assist, i));
+
+  children = g_list_reverse (children);
+
+  return glade_util_purify_list (g_list_concat (children, parent_children));
+}
+
+static void
+on_assistant_project_selection_changed (GladeProject *project,
+                                        GladeWidget *gassist)
+{
+  GList *selection = glade_project_selection_get (project);
+
+  if (selection && g_list_next (selection) == NULL)
+    {
+      GladeWidget *selected = glade_widget_get_from_gobject (selection->data);
+      GtkAssistant *assist = GTK_ASSISTANT (glade_widget_get_object (gassist));
+      gint pos;
+
+      if (!selected) return;
+
+      if (glade_widget_get_parent (selected) == gassist &&
+          glade_widget_property_get (selected, "position", &pos, NULL))
+	gtk_assistant_set_current_page (assist, pos);
+    }
+}
+
 void
 glade_gtk_assistant_post_create (GladeWidgetAdaptor * adaptor,
                                  GObject * object, GladeCreateReason reason)
@@ -7994,10 +8033,8 @@ glade_gtk_assistant_post_create (GladeWidgetAdaptor * adaptor,
       g_signal_connect (project, "parse-finished",
                         G_CALLBACK (glade_gtk_assistant_parse_finished),
                         object);
-      return;
     }
-
-  if (reason == GLADE_CREATE_USER)
+  else if (reason == GLADE_CREATE_USER)
     {
       glade_gtk_assistant_append_new_page (parent, project,
                                            _("Introduction page"),
@@ -8015,6 +8052,10 @@ glade_gtk_assistant_post_create (GladeWidgetAdaptor * adaptor,
 
       glade_widget_property_set (parent, "n-pages", 3);
     }
+
+  g_signal_connect (project, "selection-changed",
+                    G_CALLBACK (on_assistant_project_selection_changed),
+                    parent);
 }
 
 void
@@ -8027,15 +8068,31 @@ glade_gtk_assistant_add_child (GladeWidgetAdaptor * adaptor,
   gtk_assistant_append_page (assistant, widget);
 }
 
+static void
+assistant_remove_child (GtkAssistant *assistant, GtkWidget *child)
+{
+  gint i, n = gtk_assistant_get_n_pages (assistant);
+
+  for (i = 0; i < n; i++)
+    {
+      if (child == gtk_assistant_get_nth_page (assistant, i))
+	{
+	  gtk_assistant_remove_page (assistant, i);
+	  return;
+	}
+    }
+}
+
 void
 glade_gtk_assistant_remove_child (GladeWidgetAdaptor * adaptor,
                                   GObject * container, GObject * child)
 {
-  GtkAssistant *assistant = GTK_ASSISTANT (container);
   GladeWidget *gassistant = glade_widget_get_from_gobject (container);
+  GtkAssistant *assistant = GTK_ASSISTANT (container);
+
+  assistant_remove_child (assistant, GTK_WIDGET (child));
 
-  gtk_container_remove (GTK_CONTAINER (container), GTK_WIDGET (child));
-  glade_widget_property_set (gassistant, "n-pages",
+  glade_widget_property_set (gassistant, "n-pages", 
                              gtk_assistant_get_n_pages (assistant));
 }
 
@@ -8049,7 +8106,7 @@ glade_gtk_assistant_replace_child (GladeWidgetAdaptor * adaptor,
   gint pos = glade_gtk_assistant_get_page (assistant, old_page);
   gboolean set_current = gtk_assistant_get_current_page (assistant) == pos;
 
-  gtk_container_remove (GTK_CONTAINER (container), old_page);
+  assistant_remove_child (assistant, old_page);
 
   gtk_assistant_insert_page (assistant, page, pos);
   glade_gtk_assistant_update_page_type (assistant);
@@ -8090,7 +8147,10 @@ glade_gtk_assistant_set_property (GladeWidgetAdaptor * adaptor,
 
       for (i = gtk_assistant_get_n_pages (GTK_ASSISTANT (object)),
            size = g_value_get_int (value); i < size; i++)
+	{
+	  g_message ("aaaa %d %d", i,size);
         gtk_assistant_append_page (assistant, glade_placeholder_new ());
+	}
 
       glade_gtk_assistant_update_page_type (assistant);
 
@@ -8141,7 +8201,7 @@ glade_gtk_assistant_set_child_property (GladeWidgetAdaptor * adaptor,
           glade_gtk_assistant_get_page (assistant, widget);   
 
       g_object_ref (child);
-      gtk_container_remove (GTK_CONTAINER (container), widget);
+      assistant_remove_child (assistant, widget);
       gtk_assistant_insert_page (assistant, widget, pos);
       g_object_unref (child);
 
diff --git a/plugins/gtk+/gtk+.xml.in b/plugins/gtk+/gtk+.xml.in
index 37e8128..f4846a0 100644
--- a/plugins/gtk+/gtk+.xml.in
+++ b/plugins/gtk+/gtk+.xml.in
@@ -2002,11 +2002,15 @@ embedded in another object</_tooltip>
       <verify-function>glade_gtk_assistant_verify_property</verify-function>
       <child-set-property-function>glade_gtk_assistant_set_child_property</child-set-property-function>
       <child-get-property-function>glade_gtk_assistant_get_child_property</child-get-property-function>
+      <get-children-function>glade_gtk_assistant_get_children</get-children-function>
+      <internal-children>
+        <object name="action_area"/>
+      </internal-children>
       <properties>
         <property save="False" id="n-pages" _name="Number of Pages">
 	  <parameter-spec>
 	    <type>GParamInt</type>
-	    <min>1</min>
+	    <min>0</min>
 	  </parameter-spec>
 	  <_tooltip>Number of pages in this assistant</_tooltip>
 	</property>