public void WeakEventManagerShouldRemoveWeakListenersPropertyChanged()
{
const int count = 100;
const string propertyName = "test";
var model = new BindingSourceModel();
var listeners = new List <WeakReference>();
IWeakEventManager weakEventManager = CreateWeakEventManager();
for (int i = 0; i < count; i++)
{
var listenerMock = new EventListenerMock();
weakEventManager.Subscribe(model, propertyName, listenerMock);
listeners.Add(new WeakReference(listenerMock));
listenerMock.Handle = (o, o1) => { };
}
GC.Collect();
GC.WaitForPendingFinalizers();
GC.Collect();
model.OnPropertyChanged(propertyName + "1");
model.OnPropertyChanged(propertyName);
model.OnPropertyChanged(propertyName);
listeners.All(reference => reference.Target == null).ShouldBeTrue();
}
public static void Initialize(IBindingProvider bindingProvider = null, IBindingManager bindingManager = null,
IBindingResourceResolver resourceResolver = null, IBindingMemberProvider memberProvider = null, IVisualTreeManager visualTreeManager = null,
IWeakEventManager weakEventManager = null, IObserverProvider observerProvider = null, IBindingContextManager contextManager = null, IBindingErrorProvider errorProvider = null,
Func <IBindingMemberInfo, Type, object, object> converter = null, Func <string, IBindingPath> bindingPathFactory = null,
Func <Type, string, IBindingMemberInfo> findUpdateEvent = null, Func <CultureInfo> bindingCultureInfo = null, IDictionary <string, IBindingBehavior> bindingModeBehaviors = null)
{
ValueConverter = converter ?? ((info, type, arg3) => arg3);
BindingProvider = bindingProvider ?? new BindingProvider();
BindingManager = bindingManager ?? new BindingManager();
ResourceResolver = resourceResolver ?? new BindingResourceResolver();
MemberProvider = memberProvider ?? new BindingMemberProvider();
VisualTreeManager = visualTreeManager ?? new VisualTreeManager();
WeakEventManager = weakEventManager ?? new WeakEventManager();
ObserverProvider = observerProvider ?? new ObserverProvider();
ContextManager = contextManager ?? new BindingContextManager();
BindingPathFactory = bindingPathFactory ?? BindingPathFactoryDefaultImpl;
UpdateEventFinder = findUpdateEvent ?? FindUpdateEventDefaultImpl;
BindingCultureInfo = bindingCultureInfo ?? BindingCultureInfoDefaultImpl;
ErrorProvider = errorProvider;
if (bindingModeBehaviors == null)
{
InitializeDefaultBindingModeBehaviors();
}
else
{
foreach (var behavior in bindingModeBehaviors)
{
BindingModeToBehavior[behavior.Key] = behavior.Value;
}
}
}
public void WeakEventManagerShouldSubscribeAndUnsubscribePropertyChangedEventSeveralSources()
{
const int count = 100;
const string propertyName = "test";
var model = new BindingSourceModel();
var listeners = new List <EventListenerMock>();
var invokedItems = new List <EventListenerMock>();
IWeakEventManager weakEventManager = CreateWeakEventManager();
for (int i = 0; i < count; i++)
{
var listenerMock = new EventListenerMock();
var disposable = weakEventManager.Subscribe(model, propertyName, listenerMock);
listeners.Add(listenerMock);
listenerMock.Handle = (o, o1) =>
{
invokedItems.Add(listenerMock);
disposable.Dispose();
};
}
model.OnPropertyChanged(propertyName + "1");
model.OnPropertyChanged(propertyName);
model.OnPropertyChanged(propertyName);
invokedItems.Count.ShouldEqual(count);
foreach (var listener in listeners)
{
invokedItems.Contains(listener).ShouldBeTrue();
}
}
public void WeakEventManagerShouldReturnNullInvalidEvent()
{
var model = new BindingSourceModel();
IWeakEventManager weakEventManager = CreateWeakEventManager();
weakEventManager.TrySubscribe(model, BindingSourceModel.InvalidEventName, new EventListenerMock()).ShouldBeNull();
}
internal static void SetDefaultValues()
{
_valueConverter = BindingReflectionExtensions.Convert;
_resourceResolver = new BindingResourceResolver();
_memberProvider = new BindingMemberProvider();
_visualTreeManager = new VisualTreeManager();
_weakEventManager = new WeakEventManager();
_bindingManager = new BindingManager();
_bindingProvider = new BindingProvider();
_observerProvider = new ObserverProvider();
_contextManager = new BindingContextManager();
}
/// <summary>
/// Attempts to subscribe to the event.
/// </summary>
public static IDisposable TrySubscribe([NotNull] this IWeakEventManager eventManager, [NotNull] object target, string eventName, IEventListener listener,
IDataContext context = null)
{
Should.NotBeNull(eventManager, "eventManager");
Should.NotBeNull(target, "target");
var @event = target.GetType().GetEventEx(eventName, MemberFlags.Instance | MemberFlags.Public);
if (@event == null)
{
throw BindingExceptionManager.MissingEvent(target, eventName);
}
return(eventManager.TrySubscribe(target, @event, listener, context));
}
internal static void SetDefaultValues()
{
BindingCultureInfo = null;
_updateEventFinder = FindUpdateEvent;
_bindingPathFactory = BindingPath.Create;
_valueConverter = BindingReflectionExtensions.Convert;
_resourceResolver = new BindingResourceResolver();
_memberProvider = new BindingMemberProvider();
_visualTreeManager = new VisualTreeManager();
_weakEventManager = new WeakEventManager();
_bindingManager = new BindingManager();
_bindingProvider = new BindingProvider();
_observerProvider = new ObserverProvider();
_contextManager = new BindingContextManager();
}
public void WeakEventManagerShouldSubscribeAndUnsubscribeEvent()
{
int invokedCount = 0;
var model = new BindingSourceModel();
var listenerMock = new EventListenerMock();
IWeakEventManager weakEventManager = CreateWeakEventManager();
var disposable = weakEventManager.TrySubscribe(model, BindingSourceModel.EventName, listenerMock);
listenerMock.Handle = (o, o1) => invokedCount++;
invokedCount.ShouldEqual(0);
model.RaiseEvent();
invokedCount.ShouldEqual(1);
disposable.Dispose();
model.RaiseEvent();
invokedCount.ShouldEqual(1);
}
public void WeakEventManagerShouldSubscribeAndUnsubscribePropertyChangedEvent()
{
const string propertyName = "test";
int invokedCount = 0;
var model = new BindingSourceModel();
var listenerMock = new EventListenerMock();
IWeakEventManager weakEventManager = CreateWeakEventManager();
var disposable = weakEventManager.Subscribe(model, propertyName, listenerMock);
listenerMock.Handle = (o, o1) => invokedCount++;
invokedCount.ShouldEqual(0);
model.OnPropertyChanged(propertyName + "1");
invokedCount.ShouldEqual(0);
model.OnPropertyChanged(propertyName);
invokedCount.ShouldEqual(1);
disposable.Dispose();
model.OnPropertyChanged(propertyName);
invokedCount.ShouldEqual(1);
}
public void WeakEventManagerShouldRemoveWeakListenersEvent()
{
const int count = 100;
var model = new BindingSourceModel();
var listeners = new List <WeakReference>();
IWeakEventManager weakEventManager = CreateWeakEventManager();
for (int i = 0; i < count; i++)
{
var listenerMock = new EventListenerMock();
weakEventManager.TrySubscribe(model, BindingSourceModel.EventName, listenerMock);
listeners.Add(new WeakReference(listenerMock));
listenerMock.Handle = (o, o1) => { };
}
GC.Collect();
GC.WaitForPendingFinalizers();
GC.Collect();
model.RaiseEvent();
model.RaiseEvent();
listeners.All(reference => reference.Target == null).ShouldBeTrue();
}
private void InitializeDependencies()
{
_weakEventManagerFactory = ServiceProvider.GetRequiredService <IWeakEventManagerFactory>();
_bindingFactory = ServiceProvider.GetRequiredService <IBindingFactory>();
_weakEventManager = _weakEventManagerFactory.Create();
}
internal static void SetDefaultValues()
{
BindingCultureInfo = null;
_updateEventFinder = FindUpdateEvent;
_bindingPathFactory = BindingPath.Create;
_valueConverter = BindingReflectionExtensions.Convert;
_resourceResolver = new BindingResourceResolver();
_memberProvider = new BindingMemberProvider();
_visualTreeManager = new VisualTreeManager();
_weakEventManager = new WeakEventManager();
_bindingManager = new BindingManager();
_bindingProvider = new BindingProvider();
_observerProvider = new ObserverProvider();
_contextManager = new BindingContextManager();
}
public Binding(INotifyPropertyChanged source, PropertyInfo propertyInfo, IWeakEventManager weakEventManager)
{
_weakEventManager = weakEventManager ?? throw new ArgumentNullException(nameof(weakEventManager));
Source = source ?? throw new ArgumentNullException(nameof(source));
PropertyInfo = propertyInfo ?? throw new ArgumentNullException(nameof(propertyInfo));
}
public IBinding Create(INotifyPropertyChanged source, PropertyInfo propertyInfo, IWeakEventManager weakEventManager)
{
return(new Binding(source, propertyInfo, weakEventManager));
}
