diff options
Diffstat (limited to 'Xamarin.Forms.Platform.WinRT/MenuItemCommand.cs')
-rw-r--r-- | Xamarin.Forms.Platform.WinRT/MenuItemCommand.cs | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/Xamarin.Forms.Platform.WinRT/MenuItemCommand.cs b/Xamarin.Forms.Platform.WinRT/MenuItemCommand.cs new file mode 100644 index 00000000..31574b44 --- /dev/null +++ b/Xamarin.Forms.Platform.WinRT/MenuItemCommand.cs @@ -0,0 +1,48 @@ +using System; +using System.ComponentModel; +using System.Windows.Input; + +#if WINDOWS_UWP + +namespace Xamarin.Forms.Platform.UWP +#else + +namespace Xamarin.Forms.Platform.WinRT +#endif +{ + internal class MenuItemCommand : ICommand + { + readonly MenuItem _menuItem; + + public MenuItemCommand(MenuItem item) + { + _menuItem = item; + _menuItem.PropertyChanged += OnElementPropertyChanged; + } + + public virtual bool CanExecute(object parameter) + { + return _menuItem.IsEnabled; + } + + public event EventHandler CanExecuteChanged; + + public void Execute(object parameter) + { + _menuItem.Activate(); + } + + void OnCanExecuteChanged() + { + EventHandler changed = CanExecuteChanged; + if (changed != null) + changed(this, EventArgs.Empty); + } + + void OnElementPropertyChanged(object sender, PropertyChangedEventArgs e) + { + if (e.PropertyName == VisualElement.IsEnabledProperty.PropertyName) + OnCanExecuteChanged(); + } + } +}
\ No newline at end of file |