Refactoring GestureHandler for extension

 - Design : http://suprem.sec.samsung.net/confluence/display/SPTDTLC/Refactoring+GestureHandler

Change-Id: I1cbcf830b4b1076c227b0ea641508198c7cb2102
Signed-off-by: SungHyun Min <shyun.min@samsung.com>

1 files changed, 47 insertions, 0 deletions

diff --git a/Xamarin.Forms.Platform.Tizen/PanGestureHandler.cs b/Xamarin.Forms.Platform.Tizen/PanGestureHandler.cs
new file mode 100644
index 00000000..ec1e6de6
--- /dev/null
+++ b/Xamarin.Forms.Platform.Tizen/PanGestureHandler.cs
@@ -0,0 +1,47 @@
+using System;
+using System.ComponentModel;
+using ElmSharp;
+
+namespace Xamarin.Forms.Platform.Tizen
+{
+	public class PanGestureHandler : GestureHandler
+	{
+		int _currentPanGestureId;
+
+		public PanGestureHandler(IGestureRecognizer recognizer) : base(recognizer)
+		{
+		}
+
+		public override GestureLayer.GestureType Type
+		{
+			get
+			{
+				return GestureLayer.GestureType.Momentum;
+			}
+		}
+
+		public override event PropertyChangedEventHandler PropertyChanged;
+
+		protected override void OnStarted(View sender, object data)
+		{
+			_currentPanGestureId++;
+			(Recognizer as IPanGestureController)?.SendPanStarted(sender, _currentPanGestureId);
+		}
+
+		protected override void OnMoved(View sender, object data)
+		{
+			var lineData = (GestureLayer.MomentumData)data;
+			(Recognizer as IPanGestureController)?.SendPan(sender, lineData.X2 - lineData.X1, lineData.Y2 - lineData.Y1, _currentPanGestureId);
+		}
+
+		protected override void OnCompleted(View sender, object data)
+		{
+			(Recognizer as IPanGestureController)?.SendPanCompleted(sender, _currentPanGestureId);
+		}
+
+		protected override void OnCanceled(View sender, object data)
+		{
+			(Recognizer as IPanGestureController)?.SendPanCanceled(sender, _currentPanGestureId);
+		}
+	}
+}
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