Add Tizen backend renderer

- Xamarin.Forms.Platform.Tizen has been added
- Xamarin.Forms.Maps.Tizen has been added
- RPM build spec has been added

Change-Id: I0021e0f040d97345affc87512ee0f6ce437f4e6d

1 files changed, 63 insertions, 0 deletions

diff --git a/Xamarin.Forms.Platform.Tizen/Renderers/SliderRenderer.cs b/Xamarin.Forms.Platform.Tizen/Renderers/SliderRenderer.cs
new file mode 100644
index 00000000..93cc6e84
--- /dev/null
+++ b/Xamarin.Forms.Platform.Tizen/Renderers/SliderRenderer.cs
@@ -0,0 +1,63 @@
+using System;
+using ESlider = ElmSharp.Slider;
+using ESize = ElmSharp.Size;
+
+namespace Xamarin.Forms.Platform.Tizen
+{
+	public class SliderRenderer : ViewRenderer<Slider, ESlider>
+	{
+
+		public SliderRenderer()
+		{
+			RegisterPropertyHandler(Slider.ValueProperty, UpdateValue);
+			RegisterPropertyHandler(Slider.MinimumProperty, UpdateMinMax);
+			RegisterPropertyHandler(Slider.MaximumProperty, UpdateMinMax);
+		}
+
+		protected override void OnElementChanged(ElementChangedEventArgs<Slider> e)
+		{
+			if (Control == null)
+			{
+				var slider = new ESlider(Forms.Context.MainWindow)
+				{
+					PropagateEvents = false,
+				};
+				SetNativeControl(slider);
+			}
+
+			if (e.OldElement != null)
+			{
+				Control.ValueChanged -= SliderValueChangedHandler;
+			}
+
+			if (e.NewElement != null)
+			{
+				Control.ValueChanged += SliderValueChangedHandler;
+			}
+
+			base.OnElementChanged(e);
+		}
+
+		protected override ESize Measure(int availableWidth, int availableHeight)
+		{
+			return new ESize(Math.Min(200, availableWidth), 50);
+		}
+
+		void SliderValueChangedHandler(object sender, EventArgs e)
+		{
+			Element.Value = Control.Value;
+		}
+
+		protected void UpdateValue()
+		{
+			Control.Value = Element.Value;
+		}
+
+		protected void UpdateMinMax()
+		{
+			Control.Minimum = Element.Minimum;
+			Control.Maximum = Element.Maximum;
+			UpdateValue();
+		}
+	}
+}