[gxml: 7/7] Added new set_namespace() method to Node

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit 5d21e9d810d7ef1d3cd01ac3877aa879b5abc45c
Author: Daniel Espinosa <esodan gmail com>
Date:   Thu Feb 5 23:42:27 2015 -0600

    Added new set_namespace() method to Node

 gxml/BackedNode.vala |   20 ++++++++++++++++++++
 gxml/Node.vala       |   10 ++++++++++
 2 files changed, 30 insertions(+), 0 deletions(-)
---
diff --git a/gxml/BackedNode.vala b/gxml/BackedNode.vala
index a880c60..d0e0dc5 100644
--- a/gxml/BackedNode.vala
+++ b/gxml/BackedNode.vala
@@ -100,6 +100,26 @@ namespace GXml {
                /**
                 * { inheritDoc}
                 */
+               public virtual bool set_namespace (string uri, string prefix)
+               {
+                       for (Xml.Ns *cur = node->ns_def; cur != null; cur = cur->next) {
+                               if ((string) cur->prefix == prefix && (string) cur->href == uri) {
+                                       this.node->ns = cur;
+                                       return true;
+                               }
+                       }
+                       // Not found in this node, searching on root element
+                       for (Xml.Ns *cur = owner_document.document_element.node->ns_def; cur != null; cur = 
cur->next) {
+                               if ((string) cur->prefix == prefix && (string) cur->href == uri) {
+                                       this.node->ns = cur;
+                                       return true;
+                               }
+                       }
+                       return false;
+               }
+               /**
+                * { inheritDoc}
+                */
                public override string? prefix {
                        get {
                                if (this.node->ns == null) {
diff --git a/gxml/Node.vala b/gxml/Node.vala
index 9cf703d..0a0e324 100644
--- a/gxml/Node.vala
+++ b/gxml/Node.vala
@@ -135,6 +135,16 @@ namespace GXml {
                {
                        return null;
                }
+               
+               /**
+                * Set namespace to this { link GXml.Node}
+                *
+                * Returns: { link true} if namespace exists.
+                */
+               public virtual bool set_namespace (string uri, string prefix)
+               {
+                       return false;
+               }
 
                /**
                 * Stores the namespace prefix for the node. This