/// <summary>
/// This method performs the actual execution of the
/// <paramref name="commandToExecute"/>, clears the redo stack, pushes
/// the <paramref name="commandToExecute"/> onto the undo stack, and
/// then invokes the StackChangedEvent if it has any handlers subscribed
/// to it.
/// </summary>
/// <param name="commandToExecute"></param>
public static void ExecuteCommand(ICommand commandToExecute)
{
commandToExecute.Execute();
redoStack.Clear();
undoStack.Push(commandToExecute);
StackChangedEvent?.Invoke();
}
/// <summary>
/// Performs a redo on the top-most <seealso cref="ICommand"/>, pushes
/// it to the undo stack, and invokes the StackChangedEvent if it has
/// any handlers subscribed to it.
/// </summary>
public static void Redo()
{
ICommand commandToRedo = redoStack.Pop();
commandToRedo.Execute();
undoStack.Push(commandToRedo);
StackChangedEvent?.Invoke();
}
/// <summary>
/// Performs an undo on the top-most <seealso cref="ICommand"/>, pushes
/// it to the redo stack, and invokes the StackChangedEvent if it has
/// any handlers subscribed to it.
/// </summary>
public static void Undo()
{
ICommand commandToUndo = undoStack.Pop();
commandToUndo.Unexecute();
redoStack.Push(commandToUndo);
StackChangedEvent?.Invoke();
}
