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Diffstat (limited to 'Xamarin.Forms.Platform.WP8/CellControl.cs')
-rw-r--r--Xamarin.Forms.Platform.WP8/CellControl.cs101
1 files changed, 101 insertions, 0 deletions
diff --git a/Xamarin.Forms.Platform.WP8/CellControl.cs b/Xamarin.Forms.Platform.WP8/CellControl.cs
new file mode 100644
index 00000000..743f4ba7
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+++ b/Xamarin.Forms.Platform.WP8/CellControl.cs
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+´╗┐using System.ComponentModel;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Media;
+using Microsoft.Phone.Controls;
+
+namespace Xamarin.Forms.Platform.WinPhone
+{
+ public class CellControl : ContentControl
+ {
+ public static readonly DependencyProperty CellProperty = DependencyProperty.Register("Cell", typeof(object), typeof(CellControl),
+ new PropertyMetadata((o, e) => ((CellControl)o).SetSource((Cell)e.OldValue, (Cell)e.NewValue)));
+
+ public static readonly DependencyProperty ShowContextActionsProperty = DependencyProperty.Register("ShowContextActions", typeof(bool), typeof(CellControl), new PropertyMetadata(true));
+
+ readonly PropertyChangedEventHandler _propertyChangedHandler;
+
+ public CellControl()
+ {
+ Unloaded += (sender, args) =>
+ {
+ var cell = DataContext as Cell;
+ if (cell != null)
+ cell.SendDisappearing();
+ };
+
+ _propertyChangedHandler = OnCellPropertyChanged;
+ }
+
+ public Cell Cell
+ {
+ get { return (Cell)GetValue(CellProperty); }
+ set { SetValue(CellProperty, value); }
+ }
+
+ public bool ShowContextActions
+ {
+ get { return (bool)GetValue(ShowContextActionsProperty); }
+ set { SetValue(ShowContextActionsProperty, value); }
+ }
+
+ System.Windows.DataTemplate GetTemplate(Cell cell)
+ {
+ var renderer = Registrar.Registered.GetHandler<ICellRenderer>(cell.GetType());
+ return renderer.GetTemplate(cell);
+ }
+
+ void OnCellPropertyChanged(object sender, PropertyChangedEventArgs e)
+ {
+ if (e.PropertyName == "HasContextActions")
+ SetupContextMenu();
+ }
+
+ void SetSource(Cell oldCell, Cell newCell)
+ {
+ if (oldCell != null)
+ {
+ oldCell.PropertyChanged -= _propertyChangedHandler;
+ oldCell.SendDisappearing();
+ }
+
+ DependencyObject content = null;
+ if (newCell != null)
+ {
+ newCell.SendAppearing();
+
+ if (oldCell == null || oldCell.GetType() != newCell.GetType())
+ ContentTemplate = GetTemplate(newCell);
+
+ Content = newCell;
+
+ SetupContextMenu();
+
+ newCell.PropertyChanged += _propertyChangedHandler;
+ }
+ else
+ Content = null;
+ }
+
+ void SetupContextMenu()
+ {
+ if (Content == null || !ShowContextActions)
+ return;
+
+ if (!Cell.HasContextActions)
+ {
+ if (VisualTreeHelper.GetChildrenCount(this) > 0)
+ ContextMenuService.SetContextMenu(VisualTreeHelper.GetChild(this, 0), null);
+
+ return;
+ }
+
+ ApplyTemplate();
+
+ ContextMenu menu = new CustomContextMenu();
+ menu.SetBinding(ItemsControl.ItemsSourceProperty, new System.Windows.Data.Binding("ContextActions"));
+
+ ContextMenuService.SetContextMenu(VisualTreeHelper.GetChild(this, 0), menu);
+ }
+ }
+} \ No newline at end of file