Add Target to LinkView, LinkLabel, and Anchor

Fixes #60

Ooui.Forms/Controls/LinkLabel.cs

@@ -6,13 +6,21 @@ namespace Ooui.Forms
     public class LinkLabel : Xamarin.Forms.Label
     {
         public static readonly BindableProperty HRefProperty = BindableProperty.Create ("HRef", typeof (string),
-            typeof (LinkView), string.Empty, BindingMode.OneWay, null, null, null, null);
+            typeof (LinkLabel), string.Empty, BindingMode.OneWay, null, null, null, null);
 
         public string HRef {
             get { return (string)base.GetValue (HRefProperty); }
             set { base.SetValue (HRefProperty, value); }
         }
 
+        public static readonly BindableProperty TargetProperty = BindableProperty.Create ("Target", typeof (string),
+            typeof (LinkLabel), string.Empty, BindingMode.OneWay, null, null, null, null);
+
+        public string Target {
+            get { return (string)base.GetValue (TargetProperty); }
+            set { base.SetValue (TargetProperty, value); }
+        }
+
         public LinkLabel ()
         {
         }

Ooui.Forms/Controls/LinkView.cs

@@ -13,6 +13,14 @@ namespace Ooui.Forms
             set { base.SetValue (HRefProperty, value); }
         }
 
+        public static readonly BindableProperty TargetProperty = BindableProperty.Create ("Target", typeof (string),
+            typeof (LinkView), string.Empty, BindingMode.OneWay, null, null, null, null);
+
+        public string Target {
+            get { return (string)base.GetValue (TargetProperty); }
+            set { base.SetValue (TargetProperty, value); }
+        }
+
         public LinkView ()
         {
         }

Ooui.Forms/Renderers/LinkLabelRenderer.cs

@@ -57,6 +57,7 @@ namespace Ooui.Forms.Renderers
                 }
 
                 UpdateHRef ();
+                UpdateTarget ();
 
                 UpdateText ();
                 UpdateTextColor ();
@@ -107,6 +108,11 @@ namespace Ooui.Forms.Renderers
             Control.HRef = Element.HRef;
         }
 
+        void UpdateTarget ()
+        {
+            Control.Target = Element.HRef;
+        }
+
         void UpdateAlignment ()
         {
             this.Style.Display = "table";

Ooui.Forms/Renderers/LinkViewRenderer.cs

@@ -15,6 +15,7 @@ namespace Ooui.Forms.Renderers
             base.OnElementChanged (e);
 
             UpdateHRef ();
+            UpdateTarget ();
         }
 
         protected override void OnElementPropertyChanged (object sender, PropertyChangedEventArgs e)
@@ -24,13 +25,20 @@ namespace Ooui.Forms.Renderers
             if (Control == null)
                 return;
 
-            if (e.PropertyName == Ooui.Forms.LinkLabel.HRefProperty.PropertyName)
+            if (e.PropertyName == Ooui.Forms.LinkView.HRefProperty.PropertyName)
                 UpdateHRef ();
+            if (e.PropertyName == Ooui.Forms.LinkView.TargetProperty.PropertyName)
+                UpdateTarget ();
         }
 
         void UpdateHRef ()
         {
             this.SetAttribute ("href", Element.HRef);
         }
+
+        void UpdateTarget ()
+        {
+            this.SetAttribute ("target", Element.Target);
+        }
     }
 }

Ooui/Anchor.cs

@@ -9,6 +9,11 @@ namespace Ooui
             set => SetAttributeProperty ("href", value);
         }
 
+        public string Target {
+            get => GetStringAttribute ("target", "");
+            set => SetAttributeProperty ("target", value);
+        }
+
         public Anchor ()
             : base ("a")
         {