public void Execute(object parameter)
{
if (!string.IsNullOrEmpty(CaliburnAction))
{
var methodName = CaliburnAction;
if (methodName.EndsWith(""))
{
methodName = methodName.Remove(methodName.Length - 2);
}
// will be overridden by Caliburn.
var controls = MetaActionManager.Instance.GetControls(this);
var source = controls.First();
var trigger = Parser.Parse(source, CaliburnAction).FirstOrDefault();
var action = trigger.Actions.OfType <ActionMessage>().FirstOrDefault();
var context = new ActionExecutionContext
{
EventArgs = new EventArgs(),
Message = action,
Source = source,
};
ActionMessage.PrepareContext(context);
if (context.CanExecute == null || context.CanExecute())
{
ActionMessage.InvokeAction(context);
}
}
}
public static void Bind(MethodInfo method, FrameworkElement element)
{
var keydown = Observable.FromEventPattern <KeyEventArgs>(element, "KeyDown")
.Where(a => a.EventArgs.Key == Key.Return &&
!a.EventArgs.Handled &&
((DataGrid)a.Sender).SelectedItem != null)
.Do(a => a.EventArgs.Handled = true)
.Select(a => ((DataGrid)a.Sender).SelectedItem);
var mouseDoubleClick = Observable.FromEventPattern <MouseButtonEventArgs>(element, "MouseDoubleClick")
.Select(a => ((DependencyObject)a.EventArgs.OriginalSource)
.Parents <DataGridCell>().FirstOrDefault());
keydown.Merge(mouseDoubleClick).Where(i => i != null)
.CatchSubscribe(_ => {
var context = new ActionExecutionContext {
Method = method,
Source = element,
Message = new ActionMessage {
MethodName = method.Name,
}
};
ActionMessage.PrepareContext(context);
ActionMessage.InvokeAction(context);
});
}
protected override void Invoke(object parameter)
{
var context = new ActionExecutionContext
{
Target = _handler,
Message = new ActionMessage {
MethodName = "Execute"
},
Method = _handler.GetType().GetMethod("Execute")
};
ActionMessage.PrepareContext(context);
if (context.CanExecute())
{
ActionMessage.InvokeAction(context);
}
}
protected override void Invoke(object parameter)
{
throw new NotImplementedException();
#warning Invoke
#if false
var context = new ActionExecutionContext
{
Target = _handler,
Message = new ActionMessage {
MethodName = "Execute"
},
Method = _handler.GetType().GetMethod("Execute")
};
ActionMessage.PrepareContext(context);
if (context.CanExecute())
{
ActionMessage.InvokeAction(context);
}
#endif
}