internal void UpdateValue()
{
var oldValue = this.Value.OldValue;
var newPropertyValue = _propertyInfo.GetValue(_propertyOwnerObj, null);
if (!_undoRedoService.IsUndoing && !_undoRedoService.IsRedoing)
{
RecordValueChange(newPropertyValue, oldValue);
}
this.Value = RecordedElementFactory.Create(_undoRedoService, _propertyInfo.GetValue(_propertyOwnerObj, null));
}
public CollectionChangedRecordedElement(IUndoRedoService undoRedoService, IList objAsIList, INotifyCollectionChanged objAsNotifyCollectionChanged)
: base(objAsNotifyCollectionChanged)
{
if (!ReferenceEquals(objAsIList, objAsNotifyCollectionChanged))
{
throw new ArgumentException("Arguments should have the same references");
}
_undoRedoService = undoRedoService;
_objAsIList = objAsIList;
_listAsNotifyCollectionChanged = objAsNotifyCollectionChanged;
_listAsNotifyCollectionChanged.CollectionChanged += OnCollectionChanged;
foreach (var item in _objAsIList)
{
_recordedElementItems.Add(RecordedElementFactory.Create(undoRedoService, item));
}
}
private void SynchronizeWithRecordedItems(NotifyCollectionChangedEventArgs notifyCollectionChangedEventArgs)
{
switch (notifyCollectionChangedEventArgs.Action)
{
case NotifyCollectionChangedAction.Add:
{
var insertionIndex = notifyCollectionChangedEventArgs.NewStartingIndex;
foreach (var newItem in notifyCollectionChangedEventArgs.NewItems)
{
_recordedElementItems.Insert(insertionIndex, RecordedElementFactory.Create(_undoRedoService, newItem));
}
break;
}
case NotifyCollectionChangedAction.Move:
{
var oldStartingIndex = notifyCollectionChangedEventArgs.OldStartingIndex;
var itemsToMove = new List <RecordedElement>();
foreach (var item in notifyCollectionChangedEventArgs.OldItems)
{
itemsToMove.Add(_recordedElementItems[oldStartingIndex]);
_recordedElementItems.RemoveAt(oldStartingIndex++);
}
var newStartingIndex = notifyCollectionChangedEventArgs.NewStartingIndex;
foreach (var item in itemsToMove)
{
_recordedElementItems.Insert(newStartingIndex++, item);
}
break;
}
case NotifyCollectionChangedAction.Remove:
{
foreach (var removedItem in notifyCollectionChangedEventArgs.OldItems)
{
_recordedElementItems[notifyCollectionChangedEventArgs.OldStartingIndex].Release();
_recordedElementItems.RemoveAt(notifyCollectionChangedEventArgs.OldStartingIndex);
}
break;
}
case NotifyCollectionChangedAction.Replace:
{
var index = notifyCollectionChangedEventArgs.NewStartingIndex;
foreach (var newItem in notifyCollectionChangedEventArgs.NewItems)
{
_recordedElementItems[index].Release();
_recordedElementItems[index] = RecordedElementFactory.Create(_undoRedoService, newItem);
index++;
}
break;
}
case NotifyCollectionChangedAction.Reset:
{
foreach (var item in _recordedElementItems)
{
item.Release();
}
_recordedElementItems.Clear();
break;
}
default:
{
throw new Exception("unknown " + typeof(NotifyCollectionChangedAction).Name + " = " + notifyCollectionChangedEventArgs.Action);
}
}
}
internal static Property Create(IUndoRedoService undoRedoService, INotifyPropertyChanged objAsNotifyPropertyChanged, IsRecordableAttribute isRecordableAttribute, PropertyInfo propertyInfo)
{
var recordableWithFilterAttribute = isRecordableAttribute as IsRecordableWithFilterAttribute;
Property property;
if (recordableWithFilterAttribute != null)
{
property = new FilteredChangeRecordProperty(undoRedoService, objAsNotifyPropertyChanged, propertyInfo, RecordedElementFactory.Create(undoRedoService, propertyInfo.GetValue(objAsNotifyPropertyChanged, null)), recordableWithFilterAttribute);
}
else
{
property = new EveryChangeRecordProperty(undoRedoService, objAsNotifyPropertyChanged, propertyInfo, RecordedElementFactory.Create(undoRedoService, propertyInfo.GetValue(objAsNotifyPropertyChanged, null)), isRecordableAttribute);
}
return(property);
}
