1 files changed, 109 insertions, 0 deletions
diff --git a/Xamarin.Forms.Platform.Tizen/Native/Canvas.cs b/Xamarin.Forms.Platform.Tizen/Native/Canvas.cs
new file mode 100644
index 00000000..c345abf2
--- /dev/null
+++ b/Xamarin.Forms.Platform.Tizen/Native/Canvas.cs
@@ -0,0 +1,109 @@
+using System.Collections.Generic;
+using System.Collections.Specialized;
+using ElmSharp;
+
+namespace Xamarin.Forms.Platform.Tizen.Native
+{
+	/// <summary>
+	/// A Canvas provides a class which can be a container for other controls.
+	/// </summary>
+	/// <remarks>
+	/// This class is used as a container view for Layouts from Xamarin.Forms.Platform.Tizen framework.
+	/// It is used for implementing xamarin pages and layouts.
+	/// </remarks>
+	public class Canvas : Box, IContainable<EvasObject>
+	{
+		/// <summary>
+		/// The list of Views.
+		/// </summary>
+		readonly ObservableCollection<EvasObject> _children = new ObservableCollection<EvasObject>();
+
+		/// <summary>
+		/// Initializes a new instance of the <see cref="Xamarin.Forms.Platform.Tizen.Native.Canvas"/> class.
+		/// </summary>
+		/// <remarks>Canvas doesn't support replacing its children, this will be ignored.</remarks>
+		/// <param name="parent">Parent of this instance.</param>
+		public Canvas(EvasObject parent) : base(parent)
+		{
+			_children.CollectionChanged += (o, e) =>
+			{
+				if (e.Action == NotifyCollectionChangedAction.Add)
+				{
+					foreach (var v in e.NewItems)
+					{
+						var view = v as EvasObject;
+						if (null != view)
+						{
+							OnAdd(view);
+						}
+					}
+				}
+				else if (e.Action == NotifyCollectionChangedAction.Remove)
+				{
+					foreach (var v in e.OldItems)
+					{
+						var view = v as EvasObject;
+						if (null != view)
+						{
+							OnRemove(view);
+						}
+					}
+				}
+				else if (e.Action == NotifyCollectionChangedAction.Reset)
+				{
+					OnRemoveAll();
+				}
+			};
+		}
+
+		/// <summary>
+		/// Gets list of native elements that are placed in the canvas.
+		/// </summary>
+		public IList<EvasObject> Children
+		{
+			get
+			{
+				return _children;
+			}
+		}
+
+		/// <summary>
+		/// Provides destruction for native element and contained elements.
+		/// </summary>
+		protected override void OnUnrealize()
+		{
+			foreach (var child in _children)
+			{
+				child.Unrealize();
+			}
+
+			base.OnUnrealize();
+		}
+
+		/// <summary>
+		/// Adds a new child to a container.
+		/// </summary>
+		/// <param name="view">Native element which will be added</param>
+		void OnAdd(EvasObject view)
+		{
+			PackEnd(view);
+		}
+
+		/// <summary>
+		/// Removes a child from a container.
+		/// </summary>
+		/// <param name="view">Child element to be removed from canvas</param>
+		void OnRemove(EvasObject view)
+		{
+			UnPack(view);
+		}
+
+		/// <summary>
+		/// Removes all children from a canvas.
+		/// </summary>
+		void OnRemoveAll()
+		{
+			UnPackAll();
+		}
+	}
+}