public INotificationResult AggregateChanges()
{
INotificationResult result;
if (!HasChanges())
{
result = UnchangedNotificationResult.Instance;
}
else if (isReset)
{
result = new CollectionChangedNotificationResult <T>(null);
}
else
{
result = new CollectionChangedNotificationResult <T>
(
null,
addedItems,
removedItems,
movedItems,
replaceAddedItems,
replaceRemovedItems
);
}
engineNotified = false;
isReset = false;
addedItems = null;
removedItems = null;
movedItems = null;
replaceAddedItems = null;
replaceRemovedItems = null;
return(result);
}
public INotificationResult Notify(IList <INotificationResult> sources)
{
var change = (ICollectionChangedNotificationResult <T>)sources[0];
var handler = CollectionChanged;
if (handler != null)
{
if (change.IsReset)
{
handler.Invoke(this, new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset));
}
else
{
if (change.RemovedItems.Any())
{
handler.Invoke(this, new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Remove, change.RemovedItems));
}
if (change.AddedItems.Any())
{
handler.Invoke(this, new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Add, change.AddedItems));
}
}
}
return(CollectionChangedNotificationResult <T> .Transfer(change, this));
}
public static CollectionChangedNotificationResult <T> Create(INotifiable source, bool isReset = false)
{
CollectionChangedNotificationResult <T> item;
if (pool.TryTake(out item))
{
item.source = source;
item.addedItems.Clear();
item.removedItems.Clear();
item.movedItems.Clear();
item.isReset = isReset;
}
else
{
item = new CollectionChangedNotificationResult <T>(source, isReset);
}
return(item);
}
public INotificationResult AggregateChanges()
{
INotificationResult result;
if (!HasChanges())
{
result = UnchangedNotificationResult.Instance;
}
else
{
result = notification;
}
engineNotified = false;
notification = CollectionChangedNotificationResult <T> .Create(null);
return(result);
}
public virtual INotificationResult Notify(IList <INotificationResult> sources)
{
return(CollectionChangedNotificationResult <T> .Transfer(sources[0] as ICollectionChangedNotificationResult, this));
}
