public bool Change <T>(ICommandToken <T> token, ICommandTrigger <T> trigger)
{
var command = _commands[token].Command as ICommand <T>;
Remove(token);
Add(trigger, command, token);
return(true);
}
private ICommandToken <TArgs> Add <TArgs>(ICommandTrigger <TArgs> trigger, ICommand <TArgs> command, ICommandToken <TArgs> token = null)
{
trigger.CanExecute += command.CanExecute;
trigger.Execute += command.Execute;
trigger.OnAdd(command);
token ??= new CommandToken <TArgs>(this);
_commands.Add(token, new Entry(trigger, command));
return(token);
}
public ICommandToken <TArgs> Add <TArgs>(ICommandTrigger <TArgs> trigger, Action <TArgs> execute,
Predicate <TArgs> canExecute = null, string description = "")
{
var command = new Command <TArgs>()
{
Execute = execute, CanExecute = canExecute, Description = description
};
return(Add(trigger, command));
}
private static void TriggerPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
FrameworkElement element = d as FrameworkElement;
ICommandTrigger commandTrigger = e.NewValue as ICommandTrigger;
if (commandTrigger != null)
{
commandTrigger.Initialize(element);
}
}
private ICommandTrigger DestroyTrigger(object key)
{
if (!_triggers.ContainsKey(key))
{
return(null);
}
ICommandTrigger trigger = _triggers [key];
trigger.Deactivate();
_triggers.Remove(key);
return(trigger);
}
public static void SetTrigger(FrameworkElement source, ICommandTrigger value)
{
source.SetValue(TriggerProperty, value);
}
public static void SetTrigger(FrameworkElement source, ICommandTrigger value)
{
source.SetValue(TriggerProperty, value);
}
/// <summary>
/// Set <see cref="ICommandBinding"/> <see cref="ICommandBinding.Trigger"/> and command
/// parameter (see <see cref="ICommand.Execute"/>)
/// </summary>
/// <param name="source">Event source</param>
/// <param name="parameter">Optional command parameter (see <see cref="ICommand.Execute"/>)</param>
public void To(ICommandTrigger source, object parameter = null)
{
Binding.Trigger = source;
Binding.Parameter = parameter;
}
private void InitializeCommandSource(FrameworkElement source, ICommandTrigger child)
{
child.Initialize(source);
_initList.Add(child);
}
/*============================================================================*/
/* Constructor */
/*============================================================================*/
/// <summary>
/// Create a command mapping list
/// </summary>
/// <param name="trigger">The trigger that owns this list</param>
/// <param name="processors">A reference to the mapping processors for this command map</param>
/// <param name="logger">Optional logger</param>
public CommandMappingList(ICommandTrigger trigger, IEnumerable <Processor> processors, ILogging logger = null)
{
_trigger = trigger;
_processors = processors;
_logger = logger;
}
/*============================================================================*/
/* Constructor */
/*============================================================================*/
/// <summary>
/// Create a command mapping list
/// </summary>
/// <param name="trigger">The trigger that owns this list</param>
/// <param name="processors">A reference to the mapping processors for this command map</param>
/// <param name="logger">Optional logger</param>
public CommandMappingList (ICommandTrigger trigger, IEnumerable<Processor> processors, ILogger logger = null)
{
_trigger = trigger;
_processors = processors;
_logger = logger;
}
