/// <summary>
/// Run all action for collection changed
/// </summary>
/// <param name="property"></param>
/// <param name="args"></param>
public void RunCollection(string property, MvbCollectionUpdateArgs args)
{
ICollection <Tuple <WeakReference, Action <MvbCollectionUpdateArgs> > > value;
if (!this._runCollectionDictionary.TryGetValue(property, out value))
{
return;
}
var toRemove = new List <Tuple <WeakReference, Action <MvbCollectionUpdateArgs> > >();
// Run every action on live subscriber
foreach (var tuple in value)
{
if (tuple.Item1.IsAlive)
{
this._uiRunner.Run(tuple.Item2, args);
}
else
{
toRemove.Add(tuple);
}
}
// Clear action on dead objects
foreach (var toRemoveItem in toRemove)
{
value.Remove(toRemoveItem);
}
}
private void ActiveListenerOnObservableCollection(object obj, string propertyNameSuffix = null)
{
var typeInfo = obj.GetType().GetTypeInfo();
foreach (var info in typeInfo.DeclaredProperties)
{
var isMvbCollection =
info.PropertyType.GetTypeInfo().ImplementedInterfaces.Contains(typeof(IMvbCollection));
if (!isMvbCollection)
{
continue;
}
var obserableProp = (IMvbCollection)info.GetValue(obj, null);
if (obserableProp == null)
{
continue;
}
var runPropertyName = propertyNameSuffix != null ? $"{propertyNameSuffix}.{info.Name}" : info.Name;
runPropertyName = runPropertyName.TrimStart('.');
obserableProp.CollectionChanged += (sender, args) =>
{
var mvbArgs = new MvbCollectionUpdateArgs
{
MvbUpdateAction = MvbUpdateAction.CollectionChanged,
NotifyCollectionChangedEventArgs = args
};
this.RunCollection(runPropertyName, mvbArgs);
};
obserableProp.MvbItemCollectionChanged += (sender, args) =>
{
var mvbArgs = new MvbCollectionUpdateArgs
{
MvbUpdateAction = MvbUpdateAction.ItemChanged,
MvbCollectionItemChanged = args
};
this.RunCollection(info.Name, mvbArgs);
};
}
}
/// <summary>
/// Run all action for collection changed
/// </summary>
/// <param name="property"></param>
/// <param name="args"></param>
public void RunCollection <TSource>(Expression <Func <TSource, object> > property, MvbCollectionUpdateArgs args) where TSource : MvbBase
{
var propName = this.GetCompositePropertyName(property);
this.RunCollection(propName, args);
}
