/// <summary>
/// Callback when the Command property is set or changed.
/// </summary>
private static void OnCommandInvalidated(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs e)
{
// Clear the exisiting bindings on the element we are attached to.
UIElement element = (UIElement)dependencyObject;
element.CommandBindings.Clear();
// If we're given a command model, set up a binding
CommandModel commandModel = e.NewValue as CommandModel;
if (commandModel != null)
{
element.CommandBindings.Add(new CommandBinding(commandModel.Command, commandModel.OnExecute, commandModel.OnQueryEnabled));
}
// Suggest to WPF to refresh commands
CommandManager.InvalidateRequerySuggested();
}
public static void Register(Type hostType, CommandModel commandModel)
{
CommandManager.RegisterClassCommandBinding(hostType, commandModel.CommandBinding);
}
public static void SetCommand(DependencyObject sender, CommandModel command)
{
sender.SetValue(CommandProperty, command);
}
public static void RegisterGesture(Type hostType, CommandModel commandModel, InputGesture inputGesture)
{
CommandManager.RegisterClassCommandBinding(hostType, commandModel.CommandBinding);
CommandManager.RegisterClassInputBinding(hostType, new InputBinding(commandModel.Command, inputGesture));
}