public static bool ShouldInstantiatePreviewControl(IInstanceBuilderContext context, ViewNode viewNode, out XamlDocument sourceDocument, out string sourcePath)
{
sourceDocument = null;
sourcePath = null;
if (!PlatformTypes.UserControl.Equals(viewNode.Type))
{
DocumentCompositeNode documentNode = viewNode.DocumentNode as DocumentCompositeNode;
IProperty property = documentNode.TypeResolver.ResolveProperty(DesignTimeProperties.ClassProperty);
if (documentNode != null && !documentNode.Properties.Contains(property))
{
sourcePath = viewNode.Type.XamlSourcePath;
if (!string.IsNullOrEmpty(sourcePath))
{
if (context.CurrentlyInstantiatingUserControlPreviews.Contains(sourcePath))
{
return(false);
}
try
{
sourceDocument = (XamlDocument)context.DocumentRootResolver.GetDocumentRoot(sourcePath);
}
catch (FileNotFoundException fileNotFoundException)
{
}
if (sourceDocument != null && UserControlInstanceBuilderHelper.ShouldUseDocumentForPreview(context, sourceDocument))
{
return(true);
}
}
}
}
return(false);
}
public static bool NeedsRebuild(IInstanceBuilderContext context, ViewNode viewNode, string closedDocumentPath)
{
bool flag;
bool flag1;
if (!PlatformTypes.UserControl.Equals(viewNode.Type))
{
DocumentCompositeNode documentNode = viewNode.DocumentNode as DocumentCompositeNode;
IProperty property = documentNode.TypeResolver.ResolveProperty(DesignTimeProperties.ClassProperty);
if (documentNode != null && !documentNode.Properties.Contains(property))
{
string xamlSourcePath = viewNode.Type.XamlSourcePath;
if (!string.IsNullOrEmpty(xamlSourcePath))
{
if (closedDocumentPath != null && closedDocumentPath.Equals(xamlSourcePath))
{
return(true);
}
uint? changeStampWhenInstantiated = null;
IPreviewControl instance = viewNode.Instance as IPreviewControl;
if (instance != null)
{
changeStampWhenInstantiated = instance.ChangeStampWhenInstantiated;
}
IInstantiatedElementViewNode instantiatedElementViewNode = viewNode as IInstantiatedElementViewNode;
if (instantiatedElementViewNode != null)
{
foreach (object instantiatedElement in instantiatedElementViewNode.InstantiatedElements)
{
instance = instantiatedElement as IPreviewControl;
if (instance == null)
{
continue;
}
if (changeStampWhenInstantiated.HasValue && instance.ChangeStampWhenInstantiated.HasValue)
{
uint?nullable = changeStampWhenInstantiated;
uint?changeStampWhenInstantiated1 = instance.ChangeStampWhenInstantiated;
if ((nullable.GetValueOrDefault() != changeStampWhenInstantiated1.GetValueOrDefault() ? true : nullable.HasValue != changeStampWhenInstantiated1.HasValue))
{
flag = true;
return(flag);
}
}
if (changeStampWhenInstantiated.HasValue)
{
continue;
}
changeStampWhenInstantiated = instance.ChangeStampWhenInstantiated;
}
}
try
{
XamlDocument documentRoot = (XamlDocument)context.DocumentRootResolver.GetDocumentRoot(xamlSourcePath);
if (documentRoot == null)
{
return(false);
}
else
{
bool flag2 = UserControlInstanceBuilderHelper.ShouldUseDocumentForPreview(context, documentRoot);
if (changeStampWhenInstantiated.HasValue != flag2)
{
flag1 = true;
}
else if (!changeStampWhenInstantiated.HasValue)
{
flag1 = false;
}
else
{
uint?nullable1 = changeStampWhenInstantiated;
uint changeStamp = documentRoot.ChangeStamp;
flag1 = (nullable1.GetValueOrDefault() != changeStamp ? true : !nullable1.HasValue);
}
flag = flag1;
}
}
catch (IOException oException)
{
return(false);
}
return(flag);
}
}
}
return(false);
}