Initial import

1 files changed, 85 insertions, 0 deletions

diff --git a/Xamarin.Forms.Platform.WP8/NavigationMenuRenderer.cs b/Xamarin.Forms.Platform.WP8/NavigationMenuRenderer.cs
new file mode 100644
index 00000000..c5a983d3
--- /dev/null
+++ b/Xamarin.Forms.Platform.WP8/NavigationMenuRenderer.cs
@@ -0,0 +1,85 @@
+using System;
+using System.ComponentModel;
+using System.Windows.Media.Imaging;
+using Microsoft.Phone.Controls;
+
+namespace Xamarin.Forms.Platform.WinPhone
+{
+	internal class NavigationMenuRenderer : ViewRenderer<NavigationMenu, System.Windows.Controls.Grid>
+	{
+		const int Spacing = 12;
+
+		protected override void OnElementChanged(ElementChangedEventArgs<NavigationMenu> e)
+		{
+			base.OnElementChanged(e);
+
+			var grid = new System.Windows.Controls.Grid();
+			grid.ColumnDefinitions.Add(new System.Windows.Controls.ColumnDefinition { Width = System.Windows.GridLength.Auto });
+			grid.ColumnDefinitions.Add(new System.Windows.Controls.ColumnDefinition { Width = System.Windows.GridLength.Auto });
+
+			UpdateItems(grid);
+			SetNativeControl(grid);
+		}
+
+		protected override void OnElementPropertyChanged(object sender, PropertyChangedEventArgs e)
+		{
+			base.OnElementPropertyChanged(sender, e);
+
+			switch (e.PropertyName)
+			{
+				case "Targets":
+					UpdateItems(Control);
+					break;
+			}
+		}
+
+		TileSize GetSize()
+		{
+			return RenderSize.Width >= 210 * 2 + Spacing ? TileSize.Medium : TileSize.Default;
+		}
+
+		void UpdateItems(System.Windows.Controls.Grid grid)
+		{
+			grid.Children.Clear();
+
+			grid.RowDefinitions.Clear();
+
+			var x = 0;
+			var y = 0;
+			foreach (Page target in Element.Targets)
+			{
+				if (x > 1)
+				{
+					x = 0;
+					y++;
+				}
+
+				if (x == 0)
+					grid.RowDefinitions.Add(new System.Windows.Controls.RowDefinition());
+
+				var hubTile = new HubTile { Title = target.Title, Source = new BitmapImage(new Uri(target.Icon, UriKind.Relative)), Margin = new System.Windows.Thickness(0, 0, Spacing, Spacing) };
+
+				if (target.BackgroundColor != Color.Default)
+					hubTile.Background = target.BackgroundColor.ToBrush();
+
+				Page tmp = target;
+				hubTile.Tap += (sender, args) => Element.SendTargetSelected(tmp);
+
+				hubTile.SetValue(System.Windows.Controls.Grid.RowProperty, y);
+				hubTile.SetValue(System.Windows.Controls.Grid.ColumnProperty, x);
+				hubTile.Size = GetSize();
+
+				var weakRef = new WeakReference(hubTile);
+				SizeChanged += (sender, args) =>
+				{
+					if (weakRef.IsAlive)
+						((HubTile)weakRef.Target).Size = GetSize();
+					((IVisualElementController)Element).NativeSizeChanged();
+				};
+
+				x++;
+				grid.Children.Add(hubTile);
+			}
+		}
+	}
+}
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