[gxml] GOM: Serializable of double types added

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit ada5076d11d45ace12db90108d4642eeece9ee56
Author: Daniel Espinosa <esodan gmail com>
Date:   Thu Nov 3 17:13:24 2016 -0600

    GOM: Serializable of double types added
    
    Support for double types properties has been added
    with long name use. To access your properties you
    need to use Canonalized name this is:
    
    double long_name { get; set; }
    
    will be accessible using .get_property ("long-name")

 gxml/GomObject.vala            |    3 +++
 test/GomSerializationTest.vala |   19 +++++++++++++++++++
 2 files changed, 22 insertions(+), 0 deletions(-)
---
diff --git a/gxml/GomObject.vala b/gxml/GomObject.vala
index 7a4acf5..9fd7084 100644
--- a/gxml/GomObject.vala
+++ b/gxml/GomObject.vala
@@ -86,6 +86,9 @@ public interface GXml.GomObject : GLib.Object,
       if (prop.value_type.is_a (typeof (uint))) {
         return ((uint) v).to_string ();
       }
+      if (prop.value_type.is_a (typeof (double))) {
+        return ((double) v).to_string ();
+      }
     }
     return null;
   }
diff --git a/test/GomSerializationTest.vala b/test/GomSerializationTest.vala
index d81b92c..2ba5edc 100644
--- a/test/GomSerializationTest.vala
+++ b/test/GomSerializationTest.vala
@@ -40,6 +40,14 @@ class GomSerializationTest : GXmlTest  {
     }
     public string to_string () { return (_document as GomDocument).to_string (); }
   }
+  public class Taxes : GomElement {
+    [Description (nick="::monthRate")]
+    public double month_rate { get; set; }
+    construct {
+      _local_name = "Taxes";
+    }
+    public string to_string () { return (_document as GomDocument).to_string (); }
+  }
   public static void add_tests () {
     Test.add_func ("/gxml/gom-serialization/write/properties", () => {
       var b = new Book ();
@@ -65,5 +73,16 @@ class GomSerializationTest : GXmlTest  {
       s = c.to_string ();
       GLib.message ("DOC:"+s);
     });
+    Test.add_func ("/gxml/gom-serialization/write/property-long-name", () => {
+      var t = new Taxes ();
+      string s = t.to_string ();
+      assert (s != null);
+      assert ("<Taxes monthRate=\"0\"/>" in s);
+      t.month_rate = 16.5;
+      assert ("16.5" in "%.2f".printf (t.month_rate));
+      assert ("16.5" in t.get_attribute ("month-rate"));
+      s = t.to_string ();
+      GLib.message ("DOC:"+s);
+    });
   }
 }