DesignTimeXamlWriter(NamespaceIndentingXmlWriter underlyingWriter, WorkflowDesignerXamlSchemaContext context, bool shouldWriteDebugSymbol)
: base(underlyingWriter, context,
// Setting AssumeValidInput to true allows to save a document even if it has duplicate members
new XamlXmlWriterSettings { AssumeValidInput = true })
{
underlyingWriter.Parent = this;
this.namespacesToIgnore = new HashSet<string>();
this.rootLevelNamespaces = new HashSet<string>();
this.schemaContext = context;
this.currentDepth = 0;
this.shouldWriteDebugSymbol = shouldWriteDebugSymbol;
}
DesignTimeXamlWriter(NamespaceIndentingXmlWriter underlyingWriter, WorkflowDesignerXamlSchemaContext context, bool shouldWriteDebugSymbol)
: base(underlyingWriter, context,
// Setting AssumeValidInput to true allows to save a document even if it has duplicate members
new XamlXmlWriterSettings {
AssumeValidInput = true
})
{
underlyingWriter.Parent = this;
this.namespacesToIgnore = new HashSet <string>();
this.rootLevelNamespaces = new HashSet <string>();
this.schemaContext = context;
this.currentDepth = 0;
this.shouldWriteDebugSymbol = shouldWriteDebugSymbol;
}
public DesignTimeXamlWriter(TextWriter textWriter, WorkflowDesignerXamlSchemaContext context, bool shouldWriteDebugSymbol)
: this(new NamespaceIndentingXmlWriter(textWriter), context, shouldWriteDebugSymbol)
{
}
internal string SerializeToString(object obj, string fileName)
{
FrameworkName targetFramework = this.FrameworkName;
string sourceFile = null;
Activity rootWorkflowElement = GetRootWorkflowElement(obj);
Dictionary <int, object> modelItemObjectSequence = null;
// If the current target is 4.5 or Higher, let us not write the filename attribute as DebugSymbol eliminates the need for it.
// We will serialize without the Filename by removing it from the element and adding it back after serialization
if (targetFramework.Is45OrHigher())
{
if (AttachablePropertyServices.TryGetProperty <string>(rootWorkflowElement, XamlDebuggerXmlReader.FileNameName, out sourceFile))
{
AttachablePropertyServices.RemoveProperty(rootWorkflowElement, XamlDebuggerXmlReader.FileNameName);
}
}
TextWriter textWriter = new StringWriter(CultureInfo.InvariantCulture);
WorkflowDesignerXamlSchemaContext schemaContext = obj is ActivityBuilder ? this.XamlSchemaContext : new WorkflowDesignerXamlSchemaContext(null);
bool shouldWriteDebugSymbol = true;
if (targetFramework.IsLessThan45())
{
shouldWriteDebugSymbol = false;
}
System.Xaml.XamlReader outerReader;
XamlObjectReaderWithSequence innerReader;
using (textWriter)
{
UsingXamlWriter(
new DesignTimeXamlWriter(textWriter, schemaContext, shouldWriteDebugSymbol),
delegate(DesignTimeXamlWriter designTimeXamlWriter)
{
UsingXamlWriter(
ActivityXamlServices.CreateBuilderWriter(designTimeXamlWriter),
delegate(System.Xaml.XamlWriter activityBuilderWriter)
{
UsingXamlWriter(
new ActivityTemplateFactoryBuilderWriter(activityBuilderWriter, schemaContext),
delegate(System.Xaml.XamlWriter writer)
{
// If ViewStateManager property is attached, remove it. It needs to be regenerated if we target 4.5.
// It should be removed if we're targeting 4.0.
AttachablePropertyServices.RemoveProperty(obj, WorkflowViewState.ViewStateManagerProperty);
this.CreateXamlObjectReaders(obj, schemaContext, out outerReader, out innerReader);
using (innerReader)
{
using (outerReader)
{
#if ERROR_TOLERANT_SUPPORT
if (ErrorActivity.GetHasErrorActivities(obj))
{
ErrorTolerantObjectWriter.TransformAndStripErrors(outerReader, writer);
}
else
{
#endif
XamlServices.Transform(outerReader, writer);
#if ERROR_TOLERANT_SUPPORT
}
#endif
}
}
modelItemObjectSequence = innerReader.SequenceNumberToObjectMap;
});
});
});
}
string retVal = textWriter.ToString();
if (targetFramework.IsLessThan45())
{
if (sourceFile != null)
{
XamlDebuggerXmlReader.SetFileName(rootWorkflowElement, sourceFile);
}
}
IList <XamlLoadErrorInfo> loadErrors;
Dictionary <object, SourceLocation> sourceLocations;
object deserializedObject = this.DeserializeString(retVal, out loadErrors, out sourceLocations);
if (!string.IsNullOrEmpty(fileName) && targetFramework.Is45OrHigher())
{
this.LastWorkflowSymbol = this.GetWorkflowSymbol(fileName, deserializedObject, sourceLocations);
if (this.LastWorkflowSymbol != null)
{
retVal = retVal.Replace(DesignTimeXamlWriter.EmptyWorkflowSymbol, this.LastWorkflowSymbol.Encode());
}
}
// The symbol is actually removed in GetAttachedWorkflowSymbol() after deserialization completes.
System.Xaml.AttachablePropertyServices.RemoveProperty(GetRootWorkflowElement(deserializedObject), DebugSymbol.SymbolName);
this.CreateXamlObjectReaders(deserializedObject, schemaContext, out outerReader, out innerReader);
Dictionary <object, object> sourceLocationObjectToModelItemObjectMapping = new Dictionary <object, object>(ObjectReferenceEqualityComparer <object> .Default);
using (innerReader)
{
using (outerReader)
{
while (outerReader.Read())
{
}
Dictionary <int, object> sourceLocationObjectSequence = innerReader.SequenceNumberToObjectMap;
foreach (KeyValuePair <int, object> sourceLocationObjectEntry in sourceLocationObjectSequence)
{
int key = sourceLocationObjectEntry.Key;
object sourceLocationObject = sourceLocationObjectEntry.Value;
object modelItemObject;
if (modelItemObjectSequence.TryGetValue(key, out modelItemObject))
{
sourceLocationObjectToModelItemObjectMapping.Add(sourceLocationObject, modelItemObject);
}
}
}
}
this.OnSerializationCompleted(sourceLocationObjectToModelItemObjectMapping);
return(retVal);
}
public DesignTimeXamlWriter(TextWriter textWriter, WorkflowDesignerXamlSchemaContext context, bool shouldWriteDebugSymbol)
: this(new NamespaceIndentingXmlWriter(textWriter), context, shouldWriteDebugSymbol)
{
}