public IDisposable EnterMassUpdate()
{
_massUpdateScopeCount++;
_waitingForMassUpdate = true;
void DisposeAction()
{
_massUpdateScopeCount--;
if (_massUpdateScopeCount == 0)
{
_waitingForMassUpdate = false;
var args = GetChangeArguments();
if (args == null)
{
return;
}
OnCollectionChanged(args);
OnPropertyChanged(nameof(Count));
_reset = false;
_newItems = null;
_oldItems = null;
}
}
return(Disposable.FromAction(DisposeAction));
}
internal IDisposable BeginEventAddMoratorium()
{
if (!this.eventAddAllowed)
{
ExceptionUtil.ThrowInvalidOperationException("An event add moratorium is already in effect");
}
this.eventAddAllowed = false;
return(Disposable.FromAction(delegate {
this.eventAddAllowed = true;
}, false));
}
public static IDisposable Initialize(IUpdatesServiceHost host)
{
object sync = UpdatesService.sync;
lock (sync)
{
if (instance != null)
{
ExceptionUtil.ThrowInvalidOperationException("Initialize has already been called");
}
instance = new UpdatesService(host);
return(Disposable.FromAction(delegate {
Shutdown();
}, false));
}
}
public void TestAutoSubscription()
{
var testHub = new MessagesHub();
var instance = new HandlerObject();
var subscriptions = MessagesUtils.AutoSubscribe(instance, testHub);
using (Disposable.FromAction(() =>
{
foreach (var s in subscriptions)
{
s.Subscription.Dispose();
}
}))
{
string str1 = "value1";
string str2 = "value2";
int ival1 = 77;
Assert.AreEqual(instance.StrValue, string.Empty);
Assert.AreEqual(instance.IntValue, 0);
NotificationMessage1.Broadcast(str1, testHub);
Assert.AreEqual(instance.StrValue, str1);
NotificationMessage2.Broadcast(str2, ival1, testHub);
Assert.AreEqual(instance.StrValue, str2);
Assert.AreEqual(instance.IntValue, ival1);
}
Assert.Throws <Exception>(() =>
{ // all subscriptions must gone after using (...) block
NotificationMessage1.Broadcast(string.Empty, testHub);
});
}
internal IDisposable BeginEventAddMoratorium()
{
if (!this.eventAddAllowed)
{
ExceptionUtil.ThrowInvalidOperationException("An event add moratorium is already in effect");
}
List <IDisposable> second = new List <IDisposable>(this.properties.Count);
using (Dictionary <string, Property> .ValueCollection.Enumerator enumerator = this.properties.Values.GetEnumerator())
{
while (enumerator.MoveNext())
{
IDisposable item = enumerator.Current.BeginEventAddMoratorium();
second.Add(item);
}
}
IDisposable tail = Disposable.FromAction(delegate {
this.eventAddAllowed = true;
}, false);
this.eventAddAllowed = false;
return(Disposable.Combine(Enumerable.Empty <IDisposable>().Concat <IDisposable>(tail).Concat <IDisposable>(second), false));
}
private IDisposable NotifyMassSelection()
{
_relay.Send <MassSelectionStartingMessage>(this);
return(Disposable.FromAction(() => _relay.Send <MassSelectionFinishedMessage>(this)));
}
