public override void Initialize(EntityExtensions extensions)
{
if (!RuleDebugger.CheckNoNotifyPropertyChangedWarning(extensions.Target))
{
return;
}
var r = new RecursionObject {
Extensions = extensions, Strategy = this
};
// Wire notify property changed
((INotifyPropertyChanged)extensions.Target).PropertyChanged += r.OnPropertyChanged;
// Wire notify collection changed
foreach (var collection in GetCollections(extensions.Target))
{
if (RuleDebugger.CheckNoNotifyCollectionChangedWarning(collection))
{
((INotifyCollectionChanged)collection).CollectionChanged += r.OnCollectionChanged;
}
}
// Set parent
foreach (var childObject in GetAllChildObjects(extensions.Target))
{
childObject.Parent = extensions;
}
}
internal void OnPropertyChanged(object sender, PropertyChangedEventArgs e)
{
var extensions = Strategy.GetProperty(Extensions.Target, e.PropertyName);
if (extensions != null)
{
// Set parent to null
object oldValue;
_objects.TryGetValue(e.PropertyName, out oldValue);
if (oldValue != null)
{
((IEntityExtensions)oldValue).Parent = null;
}
// Set parent to value
extensions.Parent = Extensions;
_objects[e.PropertyName] = extensions;
}
var collection = Strategy.GetCollection(Extensions.Target, e.PropertyName);
if (RuleDebugger.CheckNoNotifyCollectionChangedWarning(collection))
{
var ncc = (INotifyCollectionChanged)collection;
// Unwire collection
object oldValue;
if (_objects.TryGetValue(e.PropertyName, out oldValue))
{
var oldncc = (INotifyCollectionChanged)oldValue;
oldncc.CollectionChanged -= OnCollectionChanged;
// Set old to null
foreach (var element in Strategy.GetCollectionElements((IEnumerable)oldncc))
{
element.Parent = null;
}
}
// Wire new
ncc.CollectionChanged += OnCollectionChanged;
// Set child parent to value
foreach (var element in Strategy.GetCollectionElements(collection))
{
element.Parent = Extensions;
}
}
//// Todo: Item[]
}
