public DynamicActivityXamlReader(bool isBuilder, XamlReader innerReader, XamlSchemaContext schemaContext)
{
this.isBuilder = isBuilder;
this.innerReader = innerReader;
this.schemaContext = schemaContext ?? innerReader.SchemaContext;
this.xamlTypeXamlType = this.schemaContext.GetXamlType(typeof(XamlType));
this.typeXamlType = this.schemaContext.GetXamlType(typeof(System.Type));
this.baseActivityXamlType = this.schemaContext.GetXamlType(typeof(Activity));
this.activityPropertyXamlType = this.schemaContext.GetXamlType(typeof(DynamicActivityProperty));
this.activityPropertyType = this.activityPropertyXamlType.GetMember("Type");
this.activityPropertyName = this.activityPropertyXamlType.GetMember("Name");
this.activityPropertyValue = this.activityPropertyXamlType.GetMember("Value");
this.activityPropertyAttributes = this.activityPropertyXamlType.GetMember("Attributes");
this.namespaceTable = new NamespaceTable();
this.frontLoadedDirectives = true;
this.nodeQueue = new XamlNodeQueue(this.schemaContext);
this.nodeReader = this.nodeQueue.Reader;
IXamlLineInfo info = innerReader as IXamlLineInfo;
if ((info != null) && info.HasLineInfo)
{
this.innerReaderLineInfo = info;
this.nodeReaderLineInfo = (IXamlLineInfo) this.nodeQueue.Reader;
this.hasLineInfo = true;
}
}
public XamlBackgroundReader (XamlReader wrappedReader)
{
if (wrappedReader == null)
throw new ArgumentNullException ("wrappedReader");
r = wrappedReader;
q = new XamlNodeQueue (r.SchemaContext) { LineInfoProvider = r as IXamlLineInfo };
}
public XamlBackgroundReader(XamlReader wrappedReader)
{
if (wrappedReader == null)
{
throw new ArgumentNullException("wrappedReader");
}
r = wrappedReader;
q = new XamlNodeQueue(r.SchemaContext)
{
LineInfoProvider = r as IXamlLineInfo
};
}
public void Read ()
{
var q = new XamlNodeQueue (new XamlSchemaContext ());
Assert.IsFalse (q.Reader.Read (), "#1");
Assert.IsTrue (q.Reader.IsEof, "#1-2");
q.Writer.WriteStartObject (XamlLanguage.String);
Assert.IsTrue (q.Reader.Read (), "#2");
Assert.IsFalse (q.Reader.IsEof, "#2-2");
Assert.AreEqual (XamlLanguage.String, q.Reader.Type, "#2-3");
Assert.IsNull (q.Reader.Member, "#2-4");
Assert.IsNull (q.Reader.Value, "#2-5");
Assert.IsFalse (q.Reader.Read (), "#3");
Assert.IsTrue (q.Reader.IsEof, "#3-2");
}
// We don't know what namespaces are actually used inside convertible values, so any namespaces
// that were in the parent scope on load need to be regurgitated on save, unless the prefixes were
// shadowed in the child scope.
// This can potentially cause namespace bloat, but the alternative is emitting unloadable XAML.
static XamlReader InsertNamespaces(XamlReader reader, IEnumerable<NamespaceDeclaration> parentNamespaces)
{
XamlNodeQueue namespaceNodes = new XamlNodeQueue(reader.SchemaContext);
HashSet<string> childPrefixes = new HashSet<string>();
while (reader.Read() && reader.NodeType == XamlNodeType.NamespaceDeclaration)
{
childPrefixes.Add(reader.Namespace.Prefix);
namespaceNodes.Writer.WriteNode(reader);
}
foreach (NamespaceDeclaration parentNamespace in parentNamespaces)
{
if (!childPrefixes.Contains(parentNamespace.Prefix) &&
!IsXmlNamespace(parentNamespace))
{
namespaceNodes.Writer.WriteNamespace(parentNamespace);
}
}
if (!reader.IsEof)
{
namespaceNodes.Writer.WriteNode(reader);
}
return new ConcatenatingXamlReader(namespaceNodes.Reader, reader);
}
public PropertyValueNode(PropertyNode property, ActivityBuilderXamlWriter writer)
: base(writer)
{
this.property = property;
this.valueNodes = new XamlNodeQueue(writer.SchemaContext);
base.CurrentWriter = this.valueNodes.Writer;
}
public XamlNodeQueueWriter (XamlNodeQueue source)
{
this.source = source;
}
static XamlNodeQueue StripTypeWrapping(XamlNodeQueue valueNodes, XamlType propertyType)
{
XamlNodeQueue targetNodes = new XamlNodeQueue(valueNodes.Reader.SchemaContext);
XamlReader source = valueNodes.Reader;
XamlWriter target = targetNodes.Writer;
int depth = 0;
bool consumeWrapperEndTags = false;
bool hasBufferedStartObject = false;
while (source.Read())
{
switch (source.NodeType)
{
case XamlNodeType.StartObject:
depth++;
// only strip the wrapping type nodes if we have exactly this sequence:
// StartObject StartMember(Intialization) Value EndMember EndObject.
if (targetNodes.Count == 0 && depth == 1 && source.Type == propertyType && valueNodes.Count == 5)
{
hasBufferedStartObject = true;
continue;
}
break;
case XamlNodeType.GetObject:
depth++;
break;
case XamlNodeType.StartMember:
depth++;
if (hasBufferedStartObject)
{
if (depth == 2 && source.Member == XamlLanguage.Initialization)
{
consumeWrapperEndTags = true;
continue;
}
else
{
hasBufferedStartObject = false;
targetNodes.Writer.WriteStartObject(propertyType);
}
}
break;
case XamlNodeType.EndMember:
depth--;
if (consumeWrapperEndTags && depth == 1)
{
continue;
}
break;
case XamlNodeType.EndObject:
depth--;
if (consumeWrapperEndTags && depth == 0)
{
consumeWrapperEndTags = false;
continue;
}
break;
}
target.WriteNode(source);
}
return targetNodes;
}
public PropertiesNode(BuilderClassNode classNode, ActivityBuilderXamlWriter writer)
: base(writer)
{
this.classNode = classNode;
this.propertiesNodes = new XamlNodeQueue(writer.SchemaContext);
base.CurrentWriter = this.propertiesNodes.Writer;
CurrentWriter.WriteStartMember(XamlLanguage.Members);
}
public void SetDefaultValue(XamlNodeQueue defaultValue)
{
this.defaultValue = defaultValue;
}
// Attributes [DependsOn("Name")]
public void SetAttributes(XamlNodeQueue attributeNodes)
{
this.xClassAttributeNodes = attributeNodes;
}
void FlushPreamble()
{
if (this.otherNodes == null) // already flushed
{
return;
}
CurrentWriter = this.Writer.innerWriter;
string classNamespace = null;
// first, see if we need to emit a namespace corresponding to our class
if (this.defaultValueNodes != null)
{
classNamespace = this.xClassNamespace;
}
this.rootNode.FlushPendingNodes(classNamespace);
this.rootNode = null; // not needed anymore
CurrentWriter.WriteStartObject(this.Writer.activityXamlType);
// first dump x:Class
if (this.xClassNodes == null)
{
SetXClass(null, null); // this will setup a default
}
XamlServices.Transform(this.xClassNodes.Reader, CurrentWriter, false);
// String default values get written in attribute form immediately.
// Other values get deferred until after x:Members, etc.
XamlNodeQueue deferredPropertyNodes = null;
if (this.defaultValueNodes != null)
{
foreach (KeyValuePair<string, XamlNodeQueue> defaultValueNode in this.defaultValueNodes)
{
XamlReader reader = defaultValueNode.Value.Reader;
if (reader.Read())
{
bool isStringValue = false;
if (reader.NodeType == XamlNodeType.Value)
{
string stringValue = reader.Value as string;
if (stringValue != null)
{
isStringValue = true;
}
}
if (isStringValue)
{
CurrentWriter.WriteStartMember(new XamlMember(defaultValueNode.Key, this.xClassXamlType, true));
CurrentWriter.WriteNode(reader);
XamlServices.Transform(defaultValueNode.Value.Reader, CurrentWriter, false);
// don't need an EndMember since it will be sitting in the node list (we only needed to strip the StartMember)
}
else
{
// Else: We'll write this out in a minute, after the x:ClassAttributes and x:Properties
if (deferredPropertyNodes == null)
{
deferredPropertyNodes = new XamlNodeQueue(Writer.SchemaContext);
}
deferredPropertyNodes.Writer.WriteStartMember(new XamlMember(defaultValueNode.Key, this.xClassXamlType, true));
deferredPropertyNodes.Writer.WriteNode(reader);
XamlServices.Transform(defaultValueNode.Value.Reader, deferredPropertyNodes.Writer, false);
}
}
}
}
// then dump x:ClassAttributes if we have any
if (this.xClassAttributeNodes != null)
{
XamlServices.Transform(this.xClassAttributeNodes.Reader, CurrentWriter, false);
}
// and x:Properties
if (this.xPropertiesNodes != null)
{
XamlServices.Transform(this.xPropertiesNodes.Reader, CurrentWriter, false);
}
if (deferredPropertyNodes != null)
{
XamlServices.Transform(deferredPropertyNodes.Reader, CurrentWriter, false);
}
if (this.otherNodes.Count > 0)
{
XamlServices.Transform(this.otherNodes.Reader, CurrentWriter, false);
}
this.otherNodes = null; // done with this
}
public BuilderClassNode(RootNode rootNode, ActivityBuilderXamlWriter writer)
: base(writer)
{
this.rootNode = rootNode;
// by default, if we're not in a special sub-tree, ferret the nodes away on the side
this.otherNodes = new XamlNodeQueue(writer.SchemaContext);
base.CurrentWriter = this.otherNodes.Writer;
}
public override bool Read()
{
switch (this.currentState)
{
case ActivityTemplateFactoryBuilderReaderStates.InitialState:
bool hasMoreNodes = this.underlyingReader.Read();
if (this.underlyingReader.NodeType == XamlNodeType.StartObject && IsActivityTemplateFactoryType(this.underlyingReader.Type))
{
Type underlyingType = this.underlyingReader.Type.UnderlyingType;
Type targetType = underlyingType.IsGenericType ? underlyingType.GetGenericArguments()[0] : null;
this.currentState = ActivityTemplateFactoryBuilderReaderStates.ReadingFromBufferState;
this.queuedNodes = new XamlNodeQueue(this.schemaContext);
this.queuedNodes.Writer.WriteStartObject(this.ActivityTemplateFactoryBuilderType, (IXamlLineInfo)this.underlyingReader);
string className;
while (this.underlyingReader.Read())
{
if (this.underlyingReader.NodeType == XamlNodeType.StartMember && this.underlyingReader.Member == XamlLanguage.Class)
{
this.underlyingReader.Read();
className = (string)this.underlyingReader.Value;
this.underlyingReader.Read();
this.queuedNodes.Writer.WriteStartMember(this.ActivityTemplateFactoryBuilderNameMember, (IXamlLineInfo)this.underlyingReader);
this.queuedNodes.Writer.WriteValue(className, (IXamlLineInfo)this.underlyingReader);
this.queuedNodes.Writer.WriteEndMember((IXamlLineInfo)this.underlyingReader);
if (targetType != null)
{
this.queuedNodes.Writer.WriteStartMember(this.ActivityTemplateFactoryBuilderTargetTypeMember, (IXamlLineInfo)this.underlyingReader);
object targetTypeString = targetType;
this.queuedNodes.Writer.WriteValue(targetTypeString);
this.queuedNodes.Writer.WriteEndMember();
}
}
else if (this.underlyingReader.NodeType == XamlNodeType.StartMember && this.IsActivityTemplateFactoryImplementationMember(this.underlyingReader.Member))
{
this.queuedNodes.Writer.WriteStartMember(this.ActivityTemplateFactoryBuilderImplementationMember, (IXamlLineInfo)this.underlyingReader);
return true;
}
}
}
return hasMoreNodes;
case ActivityTemplateFactoryBuilderReaderStates.ReadingFromBufferState:
if (this.queuedNodes.Reader.Read())
{
return true;
}
else
{
this.currentState = ActivityTemplateFactoryBuilderReaderStates.BypassState;
this.queuedNodes = null;
return this.underlyingReader.Read();
}
default:
SharedFx.Assert(this.currentState == ActivityTemplateFactoryBuilderReaderStates.BypassState, "This is the only remaining ActivityTemplateFactoryBuilderReaderStates.");
return this.underlyingReader.Read();
}
}
public XamlNodeQueueReader(XamlNodeQueue source)
{
this.source = source;
node = default(XamlNodeLineInfo);
}
public bool ProcessNode(XamlReader reader, XamlWriter targetWriter, int currentDepth, IXamlLineInfo readerLineInfo)
{
if ((currentDepth == this.Depth) && ((reader.NodeType == XamlNodeType.NamespaceDeclaration) || (reader.NodeType == XamlNodeType.None)))
{
this.bufferedNodes.Writer.WriteNode(reader, readerLineInfo);
reader.Read();
return true;
}
if ((((reader.NodeType == XamlNodeType.StartObject) && reader.Type.IsGeneric) && ((reader.Type.UnderlyingType != null) && (reader.Type.Name == "PropertyReferenceExtension"))) && (reader.Type.UnderlyingType.GetGenericTypeDefinition() == typeof(PropertyReferenceExtension<>)))
{
if (this.bufferedNodes.Count > 0)
{
XamlServices.Transform(this.bufferedNodes.Reader, targetWriter, false);
this.bufferedNodes = null;
}
XamlType type = reader.Type;
XamlReader reader2 = reader.ReadSubtree();
XamlType xamlType = reader.SchemaContext.GetXamlType(typeof(ActivityBuilder));
XamlType type3 = reader.SchemaContext.GetXamlType(typeof(ActivityPropertyReference));
targetWriter.WriteStartMember(xamlType.GetAttachableMember("PropertyReference"), readerLineInfo);
reader2.Read();
targetWriter.WriteStartObject(type3, readerLineInfo);
targetWriter.WriteStartMember(type3.GetMember("TargetProperty"), readerLineInfo);
targetWriter.WriteValue(this.currentMember.Name, readerLineInfo);
targetWriter.WriteEndMember(readerLineInfo);
bool flag = reader2.Read();
bool flag2 = false;
while (flag)
{
if (((reader2.NodeType == XamlNodeType.StartMember) && (reader2.Member.DeclaringType == type)) && (reader2.Member.Name == "PropertyName"))
{
flag2 = true;
}
else if (flag2)
{
if (reader2.NodeType == XamlNodeType.EndMember)
{
flag2 = false;
}
else if (reader2.NodeType == XamlNodeType.Value)
{
targetWriter.WriteStartMember(type3.GetMember("SourceProperty"), readerLineInfo);
targetWriter.WriteValue((string) reader2.Value, readerLineInfo);
targetWriter.WriteEndMember(readerLineInfo);
}
}
flag = reader2.Read();
}
targetWriter.WriteEndObject(readerLineInfo);
targetWriter.WriteEndMember(readerLineInfo);
this.ExitObject = true;
reader2.Close();
}
else
{
this.FlushBuffer(targetWriter);
targetWriter.WriteNode(reader, readerLineInfo);
}
return false;
}
public void FlushBuffer(XamlWriter targetWriter)
{
targetWriter.WriteStartMember(this.currentMember, this.currentMemberLineNumber, this.currentMemberLinePosition);
XamlServices.Transform(this.bufferedNodes.Reader, targetWriter, false);
this.bufferedNodes = null;
}
public void SetXClass(string builderName, XamlNodeQueue nameNodes)
{
this.xClassNodes = new XamlNodeQueue(Writer.SchemaContext);
this.xClassNodes.Writer.WriteStartMember(XamlLanguage.Class);
this.xClassNamespace = null;
string xClassName = builderName;
if (string.IsNullOrEmpty(xClassName))
{
xClassName = string.Format(CultureInfo.CurrentCulture, "_{0}", Guid.NewGuid().ToString().Replace("-", string.Empty).Substring(0, 4));
}
if (nameNodes != null)
{
XamlServices.Transform(nameNodes.Reader, this.xClassNodes.Writer, false);
}
else
{
this.xClassNodes.Writer.WriteValue(xClassName);
this.xClassNodes.Writer.WriteEndMember();
}
int nameStartIndex = xClassName.LastIndexOf('.');
if (nameStartIndex > 0)
{
this.xClassNamespace = builderName.Substring(0, nameStartIndex);
xClassName = builderName.Substring(nameStartIndex + 1);
}
this.xClassNamespace = string.Format(CultureInfo.CurrentUICulture, "clr-namespace:{0}", this.xClassNamespace ?? string.Empty);
this.xClassXamlType = new XamlType(this.xClassNamespace, xClassName, null, Writer.SchemaContext);
}
internal void SetUntransformedPropertyReferences(XamlMember propertyReferencesMember, XamlNodeQueue untransformedNodes)
{
ObjectFrame currentFrame = this.objectStack.Peek();
Fx.Assert(currentFrame.Type != null, "Should only create PropertyReferencesNode inside a StartObject");
currentFrame.AddMember(propertyReferencesMember, untransformedNodes);
}
// Properties [DependsOn("Attributes")]
public void SetProperties(XamlNodeQueue propertyNodes, List<KeyValuePair<string, XamlNodeQueue>> defaultValueNodes)
{
this.xPropertiesNodes = propertyNodes;
this.defaultValueNodes = defaultValueNodes;
// exiting the properties tag. So we've now accrued any instances of Name and Attributes
// that could possibly be hit flush our preamble
FlushPreamble();
}
public XamlWriter StartMember(XamlMember member, XamlWriter parentWriter)
{
this.CurrentMember = member;
this.parentWriter = parentWriter;
this.currentMemberNodes = new XamlNodeQueue(parentWriter.SchemaContext);
return this.currentMemberNodes.Writer;
}
public BuilderNameNode(BuilderClassNode classNode, ActivityBuilderXamlWriter writer)
: base(writer)
{
this.classNode = classNode;
this.nameNodes = new XamlNodeQueue(writer.SchemaContext);
base.CurrentWriter = this.nameNodes.Writer;
}
public XamlWriter EndMember()
{
AddMember(this.CurrentMember, this.currentMemberNodes);
this.CurrentMember = null;
this.currentMemberNodes = null;
XamlWriter parentWriter = this.parentWriter;
this.parentWriter = null;
return parentWriter;
}
public void AddDefaultValue(string propertyName, XamlNodeQueue value)
{
if (this.defaultValueNodes == null)
{
this.defaultValueNodes = new List<KeyValuePair<string, XamlNodeQueue>>();
}
if (string.IsNullOrEmpty(propertyName))
{
// default a name if one doesn't exist
propertyName = string.Format(CultureInfo.CurrentCulture, "_{0}", Guid.NewGuid().ToString().Replace("-", string.Empty));
}
this.defaultValueNodes.Add(new KeyValuePair<string, XamlNodeQueue>(propertyName, value));
}
public void AddMember(XamlMember member, XamlNodeQueue content)
{
if (this.Members == null)
{
this.Members = new List<KeyValuePair<XamlMember, XamlNodeQueue>>();
}
this.Members.Add(new KeyValuePair<XamlMember, XamlNodeQueue>(member, content));
}
protected internal override void Complete()
{
if (this.defaultValue != null)
{
if (string.IsNullOrEmpty(this.propertyName))
{
// default a name if one doesn't exist
this.propertyName = string.Format(CultureInfo.CurrentCulture, "_{0}", Guid.NewGuid().ToString().Replace("-", string.Empty));
}
if (this.defaultValue != null && this.propertyType != null)
{
// post-process the default value nodes to strip out
// StartObject+StartMember _Initialization+EndMember+EndObject
// wrapper nodes if the type of the object matches the
// property Type (since we are moving from "object Value" to "T Value"
this.defaultValue = StripTypeWrapping(this.defaultValue, this.propertyType);
}
this.properties.AddDefaultValue(this.propertyName, this.defaultValue);
}
}
public PropertyReferencesNode(ActivityBuilderXamlWriter writer, XamlMember originalStartMember, ImplementationNode parent)
: base(writer)
{
this.untransformedNodes = new XamlNodeQueue(Writer.SchemaContext);
this.originalStartMember = originalStartMember;
this.Parent = parent;
base.CurrentWriter = this.untransformedNodes.Writer;
}
private void Initialize(Stream stream,
Baml2006SchemaContext schemaContext,
Baml2006ReaderSettings settings)
{
schemaContext.Settings = settings;
_settings = settings;
_context = new Baml2006ReaderContext(schemaContext);
_xamlMainNodeQueue = new XamlNodeQueue(schemaContext);
_xamlNodesReader = _xamlMainNodeQueue.Reader;
_xamlNodesWriter = _xamlMainNodeQueue.Writer;
_lookingForAKeyOnAMarkupExtensionInADictionaryDepth = -1;
_isBinaryProvider = !settings.ValuesMustBeString;
// Since the reader owns the stream and is responsible for its lifetime
// it can safely hand out shared streams.
if (_settings.OwnsStream)
{
stream = new SharedStream(stream);
}
_binaryReader = new BamlBinaryReader(stream);
_context.TemplateStartDepth = -1;
if (!_settings.IsBamlFragment)
{
Process_Header();
}
}
public PropertyReferenceNode(ActivityBuilderXamlWriter writer, PropertyReferencesNode parent)
: base(writer)
{
this.propertyReferenceNodes = new XamlNodeQueue(writer.SchemaContext);
this.parent = parent;
// save the untransformed output in case we're not able to perform the transformation
base.CurrentWriter = this.propertyReferenceNodes.Writer;
}
public XamlNodeQueueWriter(XamlNodeQueue source)
{
this.source = source;
}
public RootNode(ActivityBuilderXamlWriter writer)
: base(writer)
{
this.pendingNodes = new XamlNodeQueue(writer.SchemaContext);
base.CurrentWriter = this.pendingNodes.Writer;
}
public override void WriteStartObject(XamlType type)
{
switch (this.currentState)
{
case ActivityTemplateFactoryBuilderWriterStates.InitialState:
if (type.Equals(new XamlType(typeof(ActivityTemplateFactoryBuilder), this.schemaContext)))
{
this.queuedNodes = new XamlNodeQueue(this.schemaContext);
this.currentState = ActivityTemplateFactoryBuilderWriterStates.BufferingState;
}
else
{
this.currentState = ActivityTemplateFactoryBuilderWriterStates.BypassState;
this.underlyingWriter.WriteStartObject(type);
}
break;
case ActivityTemplateFactoryBuilderWriterStates.BypassState:
this.underlyingWriter.WriteStartObject(type);
break;
default:
SharedFx.Assert(
this.currentState == ActivityTemplateFactoryBuilderWriterStates.BufferingState
|| this.currentState == ActivityTemplateFactoryBuilderWriterStates.BufferingNameState
|| this.currentState == ActivityTemplateFactoryBuilderWriterStates.BufferingTargetTypeState,
"These are the only possible ActivityTemplateFactoryBuilderWriterStates.");
SharedFx.Assert("It is impossible to start any object during the buffering state.");
break;
}
}
public void FlushPendingNodes(string classNamespace)
{
base.CurrentWriter = this.Writer.innerWriter;
if (!Writer.notRewriting)
{
// make sure we have any required namespaces
if (!this.wroteXamlNamespace)
{
string xamlNamespaceAlias = GenerateNamespacePrefix(PreferredXamlNamespaceAlias);
this.WriteNamespace(new NamespaceDeclaration(XamlLanguage.Xaml2006Namespace, xamlNamespaceAlias));
}
// If there's an x:Class="Foo.Bar", add a namespace declaration for Foo in the local assembly so we can
// say stuff like this:Bar.MyProperty later on. DON'T add the namespace declaration if somebody has already
// declared the namespace in the nodestream though (duplicates are an error).
if (classNamespace != null)
{
bool sawClassNamespace = false;
XamlReader reader = this.pendingNodes.Reader;
XamlWriter writer = this.Writer.innerWriter;
while (reader.Read() && reader.NodeType == XamlNodeType.NamespaceDeclaration)
{
if (classNamespace.Equals(reader.Namespace.Namespace))
{
sawClassNamespace = true;
}
writer.WriteNode(reader);
}
if (!sawClassNamespace)
{
string classNamespaceAlias = GenerateNamespacePrefix(PreferredClassAlias);
writer.WriteNamespace(new NamespaceDeclaration(classNamespace, classNamespaceAlias));
}
// We may have consumed the first non-namespace node off the reader in order
// to check it for being a NamespaceDeclaration. Make sure it still gets written.
if (!reader.IsEof)
{
writer.WriteNode(reader);
}
}
this.rootLevelPrefixes = null; // not needed anymore
}
XamlServices.Transform(this.pendingNodes.Reader, this.Writer.innerWriter, false);
this.pendingNodes = null;
}
