public static MessagePumpStrategy FromCurrentSynchronizationContext()
{
var context = SynchronizationContext.Current;
if (context is SingleThreadedTestSynchronizationContext)
{
return(SingleThreadedTestMessagePumpStrategy.Instance);
}
return(WindowsFormsMessagePumpStrategy.GetIfApplicable()
?? WpfMessagePumpStrategy.GetIfApplicable()
?? NoMessagePumpStrategy.Instance);
}
public static MessagePumpStrategy GetIfApplicable()
{
if (!IsApplicable(SynchronizationContext.Current))
{
return(null);
}
if (_instance is null)
{
var dispatcherType = SynchronizationContext.Current.GetType().Assembly.GetType("System.Windows.Threading.Dispatcher", throwOnError: true);
var dispatcherRun = (Action)dispatcherType
.GetMethod("Run", BindingFlags.Public | BindingFlags.Static | BindingFlags.DeclaredOnly, null, Type.EmptyTypes, null)
.CreateDelegate(typeof(Action));
var dispatcherExitAllFrames = (Action)dispatcherType
.GetMethod("ExitAllFrames", BindingFlags.Public | BindingFlags.Static | BindingFlags.DeclaredOnly, null, Type.EmptyTypes, null)
.CreateDelegate(typeof(Action));
_instance = new WpfMessagePumpStrategy(dispatcherRun, dispatcherExitAllFrames);
}
return(_instance);
}
