internal void RunApplication(DocObjHost.ApplicationRunner runner)
{
EventTrace.EasyTraceEvent(EventTrace.Keyword.KeywordPerf | EventTrace.Keyword.KeywordHosting, EventTrace.Level.Verbose, EventTrace.Event.WpfHost_DocObjHostRunApplicationStart);
PresentationAppDomainManager.SaveAppDomain = true;
this.EnableErrorPage();
if (runner())
{
Invariant.Assert(PresentationAppDomainManager.NewAppDomain != null, "Failed to start the application in a new AppDomain");
Invariant.Assert(ApplicationProxyInternal.Current != null, "Unexpected reentrant PostShutdown?");
PresentationAppDomainManager presentationAppDomainManager = PresentationAppDomainManager.NewAppDomain.DomainManager as PresentationAppDomainManager;
Invariant.Assert(ApplicationProxyInternal.Current == this._appProxyInternal, "AppProxyInternal has shut down unexpectedly.");
this._appProxyInternal = presentationAppDomainManager.CreateApplicationProxyInternal();
PresentationAppDomainManager.SaveAppDomain = false;
ApplicationProxyInternal.InitData value = this._initData.Value;
value.HandleHistoryLoad = true;
this._appProxyInternal.Run(value);
this._initData.Value = null;
}
else
{
PresentationAppDomainManager.SaveAppDomain = false;
}
EventTrace.EasyTraceEvent(EventTrace.Keyword.KeywordPerf | EventTrace.Keyword.KeywordHosting, EventTrace.Level.Verbose, EventTrace.Event.WpfHost_DocObjHostRunApplicationEnd);
}
private object DoDownloadApplicationCompleted(object e)
{
EventTrace.EasyTraceEvent(EventTrace.Keyword.KeywordHosting | EventTrace.Keyword.KeywordPerf, EventTrace.Event.WpfHost_DownloadApplicationEnd);
DownloadApplicationCompletedEventArgs args = (DownloadApplicationCompletedEventArgs)e;
ClearAsynchronousOperationStatus();
// Shutdown may have started and IBrowserCallbackServices may have become unavailable.
// In particular, making calls to the browser, just like above, could cause a pending shutdown
// call to be dispatched.
if (IsShuttingDown)
return null;
if (args.Error != null)
{
// Synchronizing with AssertApplicationRequirementsAsync(). (If no error here, AAR must have
// succeeded too.) IPHM could throw exceptions on both threads, in any order. We should
// handle only one, and we prefer the one from AAR as it tends to be more meaningful, except
// in the case when it's InvalidOperationException due to an error already encountered during
// application download and IPHM getting set to a dead state internally.
_assertAppRequirementsEvent.WaitOne();
if (!_assertAppRequirementsFailed)
{
HandleError(args.Error, args.LogFilePath, _getManifestCompletedEventArgs.SupportUri, null);
}
return null;
}
// Race condition: UserStop() can be called after InPlaceHostingManager has completed
// the downloading but before our callback is called.
bool canceled = _canceled || args.Cancelled;
if (canceled)
{
HandleCancel();
return null;
}
SetStatusText(SR.Get(SRID.HostingStatusPreparingToRun));
// This is the last progress message set. It is cleared by
// IBrowserCallbackServices.OnBeforeShowNavigationWindow() (in CColeDocument).
// Go through the Dispatcher at a lower priority to allow the above status message to render.
// There can be a signficant delay between the end of downloading and the rendering of the first
// application page, especially on cold start.
Dispatcher.BeginInvoke(DispatcherPriority.Input, new DispatcherOperationCallback(
delegate(object unused)
{
if (!IsCanceledOrShuttingDown)
{
_applicationRunner = new DocObjHost.ApplicationRunner(ExecuteDownloadedApplication);
_runApplication = true;
Shutdown();
// The Application.Exit event handler will continue...
}
return null;
}), null);
return null;
}
private object DoDirectActivation(object unused)
{
if (IsCanceledOrShuttingDown)
return null;
try
{
// Verify that this app is actually cached. This is because the call to
// CreatePartialActivationContext can succeed when we don't want it to;
// it appears to be insensitive to some parts of the ApplicationIdentity,
// or it tries to make things work when they really should fail. Looking
// at the UserApplicationTrusts does a better comparison.
if (ApplicationSecurityManager.UserApplicationTrusts[_identity.ToString()] != null)
{
_context = System.ActivationContext.CreatePartialActivationContext(_identity);
_applicationRunner = new DocObjHost.ApplicationRunner(ExecuteDirectApplication);
_runApplication = true;
this.Shutdown();
}
else
{
TryUriActivation();
}
}
catch(Exception exception)
{
// Delete the cached trust decision to force going down the full ClickOnce path next time
DeleteCachedApplicationTrust(_identity);
// Fatal error like NullReferenceException and SEHException should not be ignored.
if (exception is NullReferenceException || exception is SEHException)
{
throw;
}
else
{
TryUriActivation();
}
}
return null;
}
