bool CanExecute(RoutedUICommand command)
{
TextArea textArea = this.TextArea;
if (textArea == null)
return false;
else
return command.CanExecute(null, textArea);
}
private bool CanExecute(RoutedUICommand command)
{
TextArea textArea = this.TextArea;
if (textArea == null)
{
return(false);
}
else
{
return(command.CanExecute(null, textArea));
}
}
static Menu FromWpfCommand(RoutedUICommand command)
{
return(Menu.Item(command.Text, Observable
.FromEventPattern(command, "CanExecuteChanged")
.Select(_ => Unit.Default)
.StartWith(Unit.Default)
.Select(_ => command.CanExecute(null, null))
.DistinctUntilChanged()
.Switch(canExecute => Command.Create(
isEnabled: canExecute,
action: () => command.Execute(null, null))),
hotkey: command.InputGestures.ToHotKey()));
}
public sealed override void ActivateItem(RoutedEventArgs e)
{
ActivateItemInternal(e);
if (!e.Handled)
{
var asmList = GetNode <AssemblyListTreeNode>(this);
var inputElem = asmList == null ? null : asmList.OwnerTreeView as IInputElement;
if (inputElem != null)
{
if (TreeNodeActivatedEvent.CanExecute(this, inputElem))
{
TreeNodeActivatedEvent.Execute(this, inputElem);
}
}
}
}
public bool ExecuteCommand(string name, string argument = "")
{
if (Commands.ContainsKey(name))
{
RoutedUICommand command = Commands[name];
bool ok = command.CanExecute(argument, Target);
if (ok)
{
command.Execute(argument, Target);
}
return(ok);
}
else
{
return(false);
}
}
bool CanExecute(RoutedUICommand command)
{
return(command.CanExecute(null, textArea));
}