public void SaveState(IOriginator originator)
{
if (originator == null)
{
throw new ArgumentNullException("originator");
}
m_memento = originator.GetMemento();
}
public void HandleUndoableChange(IOriginator originator, IMemento memento)
{
var change = new Change {
Id = originator.Id, Version = m_Undo.Version, RegistryObject = originator as IRegistryObject, NextVersion = memento, PreviousVersion = GetPreviousValue(originator)
};
m_FrameChanges.Remove(change);
m_FrameChanges.Add(change);
}
public void RestoreState(IOriginator originator)
{
if (originator == null)
{
throw new ArgumentNullException("originator");
}
if (m_memento == null)
{
throw new InvalidOperationException("m_memento == null");
}
originator.SetMemento(m_memento);
}
private void Save(UTinyId id, IOriginator originator)
{
int version;
if (!m_Versions.TryGetValue(id, out version))
{
m_Versions.Add(id, originator.Version);
}
if (version == originator.Version)
{
return;
}
// Skip memento generation
if (null == OnObjectChanged)
{
return;
}
var memento = originator.Save();
OnObjectChanged.Invoke(originator, memento);
}
public void RestoreState(IOriginator originator)
{
originator.SetMemento(memento);
}
public void SaveState(IOriginator originator)
{
memento = originator.GetMemento();
}
public Caretaker(IOriginator originator)
{
_originator = originator;
}
private void ApplyMemento(IOriginator originator, IMemento memento) => originator?.RestoreMemento(memento);
public Caretaker(IOriginator originator)
{
_originator = originator;
_mementos = new Stack <IMemento>();
}
public void RestoreState(IOriginator originator)
{
if (originator == null)
throw new ArgumentNullException("originator");
if (m_memento == null)
throw new InvalidOperationException("m_memento == null");
originator.SetMemento(m_memento);
}
public void SaveState(IOriginator originator)
{
if (originator == null)
throw new ArgumentNullException("originator");
m_memento = originator.GetMemento();
}
internal StateTransactionManager(IOriginator originator)
{
this.originator = originator.ThrowIfNull(nameof(originator));
}
private static void RemoveAllActionFromOriginator(IOriginator removeOriginator)
{
for (int i = 0; i < lastActions.Count; i++)
{
object[] currentAct = (object[])lastActions[i];
IOriginator lastOriginator = (IOriginator)currentAct[0];
if (lastOriginator == removeOriginator)
{
RemoveFromStack(currentAct,false);
}
}
}
private static void AddActionToStack(IOriginator originator, Memento currentState, bool DoingRedo)
{
int totalActionsMouse = 1;
if (!mouseTotalActions.Contains(currentState.IdMouseOriginated))
{
mouseTotalActions.Add(currentState.IdMouseOriginated, 1);
}
else
{
mouseTotalActions[currentState.IdMouseOriginated] = (int)mouseTotalActions[currentState.IdMouseOriginated] + 1;
totalActionsMouse = (int)mouseTotalActions[currentState.IdMouseOriginated];
}
if (totalActionsMouse > MaxUndoPerUser)
{
RemoveFirstAction(currentState.IdMouseOriginated);
}
else if (lastActions.Count > MaxUndoActions)
{
RemoveFirstAction(GetUserWithMoreActivity());
}
object[] actionToAdd = new object[2] { originator, currentState };
ValidateAllRedoActions(actionToAdd, true);
lastActions.Add(actionToAdd);
}
public static void AddAction(IOriginator originator)
{
Memento currentState = originator.SaveState;
if (currentState != null)
{
AddActionToStack(originator, currentState,false);
}
}
private static void HandleObjectChanged(IOriginator originator, IMemento memento)
{
s_ChangedTypes.Add(originator.GetType());
}
