[gxml] Fixed iteration on child nodes from xDocument and GDocument

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit 93fd3e66b54657a667437086ce9d6ee5b4cce29d
Author: Daniel Espinosa <esodan gmail com>
Date:   Mon Feb 8 18:32:40 2016 -0600

    Fixed iteration on child nodes from xDocument and GDocument
    
    Added performance tests for xDocument and GDocument

 gxml/GXmlDocument.vala     |    6 +++---
 gxml/libxml-Document.vala  |    3 ++-
 test/gxml-performance.vala |   17 +++++++++++++----
 3 files changed, 18 insertions(+), 8 deletions(-)
---
diff --git a/gxml/GXmlDocument.vala b/gxml/GXmlDocument.vala
index 5a82d5f..8758118 100644
--- a/gxml/GXmlDocument.vala
+++ b/gxml/GXmlDocument.vala
@@ -85,9 +85,9 @@ public class GXml.GDocument : GXml.GNode, GXml.Document
     return false;
   }
   // GXml.Node
-  public override Gee.Map<string,GXml.Node> attrs { owned get { return new GHashMapAttr (this, _node); } }
-  public override Gee.BidirList<GXml.Node> children { owned get { return new GListChildren (this, _node); } }
-  public override Gee.List<GXml.Namespace> namespaces { owned get { return new GListNamespaces (this, 
_node); } }
+  public override Gee.Map<string,GXml.Node> attrs { owned get { return new GHashMapAttr (this, 
doc->get_root_element ()); } }
+  public override Gee.BidirList<GXml.Node> children { owned get { return new GListChildren (this, 
doc->get_root_element ()); } }
+  public override Gee.List<GXml.Namespace> namespaces { owned get { return new GListNamespaces (this, 
doc->get_root_element ()); } }
   public override GXml.Document document { get { return this; } }
   // GXml.Document
   public bool indent { get; set; default = false; }
diff --git a/gxml/libxml-Document.vala b/gxml/libxml-Document.vala
index 73ca11d..c84da1c 100644
--- a/gxml/libxml-Document.vala
+++ b/gxml/libxml-Document.vala
@@ -287,6 +287,7 @@ namespace GXml {
                                this.doctype = new xDocumentType (doc->int_subset, doc->ext_subset, this);
                        }
                        this.implementation = new Implementation ();
+                       _node_list = new NodeChildNodeList (this.xmldoc->get_root_element (), 
this.owner_document);
                }
 
                /**
@@ -513,7 +514,7 @@ namespace GXml {
 
                        doc = new Xml.Doc ();
                        this.from_libxml2 (doc, false);
-                       _node_list = new NodeChildNodeList ((Xml.Node*)this.xmldoc, this.owner_document);
+                       _node_list = new NodeChildNodeList (this.xmldoc->get_root_element (), 
this.owner_document);
                }
 
                /**
diff --git a/test/gxml-performance.vala b/test/gxml-performance.vala
index 5394e77..f17250b 100644
--- a/test/gxml-performance.vala
+++ b/test/gxml-performance.vala
@@ -119,10 +119,19 @@ class BookStore : SerializableContainer
 
 public class Performance
 {
-  public static void iterate (Document doc) {
-    foreach (GXml.Node node in doc.root.children) {
-      string n = node.name;
-      string v = node.value;
+  /**
+   * Iterate recursively through all node and children nodes in document.
+   */
+  public static void iterate (GXml.Node node) {
+    foreach (GXml.Node n in node.children) {
+      int i = node.children.size;
+      string name = n.name;
+      string val = n.value;
+#if DEBUG
+      GLib.message ("Node: "+name+" Val: "+val+ " Children: "+i.to_string ());
+#endif
+      if (i > 0)
+        Performance.iterate (n);
     }
   }
   public static void add_tests ()