1 files changed, 68 insertions, 0 deletions
diff --git a/Xamarin.Forms.Platform.WP8/StepperRenderer.cs b/Xamarin.Forms.Platform.WP8/StepperRenderer.cs
new file mode 100644
index 00000000..b459305f
--- /dev/null
+++ b/Xamarin.Forms.Platform.WP8/StepperRenderer.cs
@@ -0,0 +1,68 @@
+using System;
+using System.ComponentModel;
+using System.Windows;
+using System.Windows.Controls;
+using WButton = System.Windows.Controls.Button;
+
+namespace Xamarin.Forms.Platform.WinPhone
+{
+	public class StepperRenderer : ViewRenderer<Stepper, Border>
+	{
+		readonly StackPanel _panel = new StackPanel();
+		WButton _downButton;
+		WButton _upButton;
+
+		protected override void OnElementChanged(ElementChangedEventArgs<Stepper> e)
+		{
+			base.OnElementChanged(e);
+
+			var border = new Border();
+			border.Child = _panel;
+			_panel.HorizontalAlignment = HorizontalAlignment.Right;
+			_panel.Orientation = Orientation.Horizontal;
+
+			_upButton = new WButton { Content = "+", Width = 100 };
+			_downButton = new WButton { Content = "-", Width = 100 };
+
+			_panel.Children.Add(_downButton);
+			_panel.Children.Add(_upButton);
+
+			SetNativeControl(border);
+
+			_upButton.Click += UpButtonOnClick;
+			_downButton.Click += DownButtonOnClick;
+
+			UpdateButtons();
+		}
+
+		protected override void OnElementPropertyChanged(object sender, PropertyChangedEventArgs e)
+		{
+			base.OnElementPropertyChanged(sender, e);
+
+			switch (e.PropertyName)
+			{
+				case "Minimum":
+				case "Maximum":
+				case "Value":
+					UpdateButtons();
+					break;
+			}
+		}
+
+		void DownButtonOnClick(object sender, RoutedEventArgs routedEventArgs)
+		{
+			((IElementController)Element).SetValueFromRenderer(Stepper.ValueProperty, Math.Max(Element.Minimum, Element.Value - Element.Increment));
+		}
+
+		void UpButtonOnClick(object sender, RoutedEventArgs routedEventArgs)
+		{
+			((IElementController)Element).SetValueFromRenderer(Stepper.ValueProperty, Math.Min(Element.Maximum, Element.Value + Element.Increment));
+		}
+
+		void UpdateButtons()
+		{
+			_upButton.IsEnabled = Element.Value < Element.Maximum;
+			_downButton.IsEnabled = Element.Value > Element.Minimum;
+		}
+	}
+}
+\ No newline at end of file