//-----------------------------
// private methods
//-----------------------------
/// <summary>
/// build the baml element tree as well as the localizability inheritance tree
/// </summary>
/// <param name="bamlSteam">input baml stream.</param>
/// <returns>the tree constructed.</returns>
private BamlTree LoadBamlImp(Stream bamlSteam)
{
_reader = new BamlReader(bamlSteam);
_reader.Read();
if (_reader.NodeType != BamlNodeType.StartDocument)
{
throw new XamlParseException(SR.Get(SRID.InvalidStartOfBaml));
}
// create root element.
_root = new BamlStartDocumentNode();
PushNodeToStack(_root);
// A hash table used to handle duplicate properties within an element
Hashtable propertyOccurrences = new Hashtable(8);
// create the tree by depth first traversal.
while (_bamlTreeStack.Count > 0 && _reader.Read())
{
switch (_reader.NodeType)
{
case BamlNodeType.StartElement:
{
BamlTreeNode bamlNode = new BamlStartElementNode(
_reader.AssemblyName,
_reader.Name,
_reader.IsInjected,
_reader.CreateUsingTypeConverter
);
PushNodeToStack(bamlNode);
break;
}
case BamlNodeType.EndElement:
{
BamlTreeNode bamlNode = new BamlEndElementNode();
AddChildToCurrentParent(bamlNode);
PopStack();
break;
}
case BamlNodeType.StartComplexProperty:
{
BamlStartComplexPropertyNode bamlNode = new BamlStartComplexPropertyNode(
_reader.AssemblyName,
_reader.Name.Substring(0, _reader.Name.LastIndexOf('.')),
_reader.LocalName
);
bamlNode.LocalizabilityAncestor = PeekPropertyStack(bamlNode.PropertyName);
PushPropertyToStack(bamlNode.PropertyName, (ILocalizabilityInheritable)bamlNode);
PushNodeToStack(bamlNode);
break;
}
case BamlNodeType.EndComplexProperty:
{
BamlTreeNode bamlNode = new BamlEndComplexPropertyNode();
AddChildToCurrentParent(bamlNode);
PopStack();
break;
}
case BamlNodeType.Event:
{
BamlTreeNode bamlNode = new BamlEventNode(_reader.Name, _reader.Value);
AddChildToCurrentParent(bamlNode);
break;
}
case BamlNodeType.RoutedEvent:
{
BamlTreeNode bamlNode = new BamlRoutedEventNode(
_reader.AssemblyName,
_reader.Name.Substring(0, _reader.Name.LastIndexOf('.')),
_reader.LocalName,
_reader.Value
);
AddChildToCurrentParent(bamlNode);
break;
}
case BamlNodeType.PIMapping:
{
BamlTreeNode bamlNode = new BamlPIMappingNode(
_reader.XmlNamespace,
_reader.ClrNamespace,
_reader.AssemblyName
);
AddChildToCurrentParent(bamlNode);
break;
}
case BamlNodeType.LiteralContent:
{
BamlTreeNode bamlNode = new BamlLiteralContentNode(_reader.Value);
AddChildToCurrentParent(bamlNode);
break;
}
case BamlNodeType.Text:
{
BamlTreeNode bamlNode = new BamlTextNode(
_reader.Value,
_reader.TypeConverterAssemblyName,
_reader.TypeConverterName
);
AddChildToCurrentParent(bamlNode);
break;
}
case BamlNodeType.StartConstructor:
{
BamlTreeNode bamlNode = new BamlStartConstructorNode();
AddChildToCurrentParent(bamlNode);
break;
}
case BamlNodeType.EndConstructor:
{
BamlTreeNode bamlNode = new BamlEndConstructorNode();
AddChildToCurrentParent(bamlNode);
break;
}
case BamlNodeType.EndDocument:
{
BamlTreeNode bamlNode = new BamlEndDocumentNode();
AddChildToCurrentParent(bamlNode);
PopStack();
break;
}
default:
{
throw new XamlParseException(SR.Get(SRID.UnRecognizedBamlNodeType, _reader.NodeType));
}
}
// read properties if it has any.
if (_reader.HasProperties)
{
// The Hashtable is used to auto-number repeated properties. The usage is as the following:
// When encountering the 1st occurrence of the property, it stores a reference to the property's node (BamlTreeNode).
// When encountering the property the 2nd time, we start auto-numbering the property including the 1st occurrence
// and store the index count (int) in the slot from that point onwards.
propertyOccurrences.Clear();
_reader.MoveToFirstProperty();
do
{
switch (_reader.NodeType)
{
case BamlNodeType.ConnectionId:
{
BamlTreeNode bamlNode = new BamlConnectionIdNode(_reader.ConnectionId);
AddChildToCurrentParent(bamlNode);
break;
}
case BamlNodeType.Property:
{
BamlPropertyNode bamlNode = new BamlPropertyNode(
_reader.AssemblyName,
_reader.Name.Substring(0, _reader.Name.LastIndexOf('.')),
_reader.LocalName,
_reader.Value,
_reader.AttributeUsage
);
bamlNode.LocalizabilityAncestor = PeekPropertyStack(bamlNode.PropertyName);
PushPropertyToStack(bamlNode.PropertyName, (ILocalizabilityInheritable)bamlNode);
AddChildToCurrentParent(bamlNode);
if (propertyOccurrences.Contains(_reader.Name))
{
// we autonumber properties that have occurrences larger than 1
object occurrence = propertyOccurrences[_reader.Name];
int index = 2;
if (occurrence is BamlPropertyNode)
{
// start numbering this property as the 2nd occurrence is encountered
// the value stores the 1st occurrence of the property at this point
((BamlPropertyNode)occurrence).Index = 1;
}
else
{
// For the 3rd or more occurrences, the value stores the next index
// to assign to the property
index = (int)occurrence;
}
// auto-number the current property node
((BamlPropertyNode)bamlNode).Index = index;
propertyOccurrences[_reader.Name] = ++index;
}
else
{
// store the first occurrence of the property
propertyOccurrences[_reader.Name] = bamlNode;
}
break;
}
case BamlNodeType.DefAttribute:
{
if (_reader.Name == XamlReaderHelper.DefinitionUid)
{
// set the Uid proeprty when we see it.
((BamlStartElementNode)_currentParent).Uid = _reader.Value;
}
BamlTreeNode bamlNode = new BamlDefAttributeNode(
_reader.Name,
_reader.Value
);
AddChildToCurrentParent(bamlNode);
break;
}
case BamlNodeType.XmlnsProperty:
{
BamlTreeNode bamlNode = new BamlXmlnsPropertyNode(
_reader.LocalName,
_reader.Value
);
AddChildToCurrentParent(bamlNode);
break;
}
case BamlNodeType.ContentProperty:
{
BamlTreeNode bamlNode = new BamlContentPropertyNode(
_reader.AssemblyName,
_reader.Name.Substring(0, _reader.Name.LastIndexOf('.')),
_reader.LocalName
);
AddChildToCurrentParent(bamlNode);
break;
}
case BamlNodeType.PresentationOptionsAttribute:
{
BamlTreeNode bamlNode = new BamlPresentationOptionsAttributeNode(
_reader.Name,
_reader.Value
);
AddChildToCurrentParent(bamlNode);
break;
}
default:
{
throw new XamlParseException(SR.Get(SRID.UnRecognizedBamlNodeType, _reader.NodeType));
}
}
} while (_reader.MoveToNextProperty());
}
}
// At this point, the baml tree stack should be completely unwinded and also nothing more to read.
if (_reader.Read() || _bamlTreeStack.Count > 0)
{
throw new XamlParseException(SR.Get(SRID.InvalidEndOfBaml));
}
return(new BamlTree(_root, _nodeCount));
//notice that we don't close the input stream because we don't own it.
}
//-----------------------------
// private methods
//-----------------------------
/// <summary>
/// build the baml element tree as well as the localizability inheritance tree
/// </summary>
/// <param name="bamlSteam">input baml stream.</param>
/// <returns>the tree constructed.</returns>
private BamlTree LoadBamlImp(Stream bamlSteam)
{
_reader = new BamlReader(bamlSteam);
_reader.Read();
if (_reader.NodeType != BamlNodeType.StartDocument)
{
throw new XamlParseException(SR.Get(SRID.InvalidStartOfBaml));
}
// create root element.
_root = new BamlStartDocumentNode();
PushNodeToStack(_root);
// A hash table used to handle duplicate properties within an element
Hashtable propertyOccurrences = new Hashtable(8);
// create the tree by depth first traversal.
while (_bamlTreeStack.Count > 0 && _reader.Read())
{
switch (_reader.NodeType)
{
case BamlNodeType.StartElement :
{
BamlTreeNode bamlNode = new BamlStartElementNode(
_reader.AssemblyName,
_reader.Name,
_reader.IsInjected,
_reader.CreateUsingTypeConverter
);
PushNodeToStack(bamlNode);
break;
}
case BamlNodeType.EndElement :
{
BamlTreeNode bamlNode = new BamlEndElementNode();
AddChildToCurrentParent(bamlNode);
PopStack();
break;
}
case BamlNodeType.StartComplexProperty :
{
BamlStartComplexPropertyNode bamlNode = new BamlStartComplexPropertyNode(
_reader.AssemblyName,
_reader.Name.Substring(0, _reader.Name.LastIndexOf('.')),
_reader.LocalName
);
bamlNode.LocalizabilityAncestor = PeekPropertyStack(bamlNode.PropertyName);
PushPropertyToStack(bamlNode.PropertyName, (ILocalizabilityInheritable) bamlNode);
PushNodeToStack(bamlNode);
break;
}
case BamlNodeType.EndComplexProperty :
{
BamlTreeNode bamlNode = new BamlEndComplexPropertyNode();
AddChildToCurrentParent(bamlNode);
PopStack();
break;
}
case BamlNodeType.Event :
{
BamlTreeNode bamlNode = new BamlEventNode(_reader.Name, _reader.Value);
AddChildToCurrentParent(bamlNode);
break;
}
case BamlNodeType.RoutedEvent :
{
BamlTreeNode bamlNode = new BamlRoutedEventNode(
_reader.AssemblyName,
_reader.Name.Substring(0, _reader.Name.LastIndexOf('.')),
_reader.LocalName,
_reader.Value
);
AddChildToCurrentParent(bamlNode);
break;
}
case BamlNodeType.PIMapping :
{
BamlTreeNode bamlNode = new BamlPIMappingNode(
_reader.XmlNamespace,
_reader.ClrNamespace,
_reader.AssemblyName
);
AddChildToCurrentParent(bamlNode);
break;
}
case BamlNodeType.LiteralContent :
{
BamlTreeNode bamlNode = new BamlLiteralContentNode(_reader.Value);
AddChildToCurrentParent(bamlNode);
break;
}
case BamlNodeType.Text :
{
BamlTreeNode bamlNode = new BamlTextNode(
_reader.Value,
_reader.TypeConverterAssemblyName,
_reader.TypeConverterName
);
AddChildToCurrentParent(bamlNode);
break;
}
case BamlNodeType.StartConstructor :
{
BamlTreeNode bamlNode = new BamlStartConstructorNode();
AddChildToCurrentParent(bamlNode);
break;
}
case BamlNodeType.EndConstructor :
{
BamlTreeNode bamlNode = new BamlEndConstructorNode();
AddChildToCurrentParent(bamlNode);
break;
}
case BamlNodeType.EndDocument :
{
BamlTreeNode bamlNode = new BamlEndDocumentNode();
AddChildToCurrentParent(bamlNode);
PopStack();
break;
}
default :
{
throw new XamlParseException(SR.Get(SRID.UnRecognizedBamlNodeType, _reader.NodeType));
}
}
// read properties if it has any.
if (_reader.HasProperties)
{
// The Hashtable is used to auto-number repeated properties. The usage is as the following:
// When encountering the 1st occurrence of the property, it stores a reference to the property's node (BamlTreeNode).
// When encountering the property the 2nd time, we start auto-numbering the property including the 1st occurrence
// and store the index count (int) in the slot from that point onwards.
propertyOccurrences.Clear();
_reader.MoveToFirstProperty();
do
{
switch (_reader.NodeType)
{
case BamlNodeType.ConnectionId:
{
BamlTreeNode bamlNode = new BamlConnectionIdNode(_reader.ConnectionId);
AddChildToCurrentParent(bamlNode);
break;
}
case BamlNodeType.Property :
{
BamlPropertyNode bamlNode = new BamlPropertyNode(
_reader.AssemblyName,
_reader.Name.Substring(0, _reader.Name.LastIndexOf('.')),
_reader.LocalName,
_reader.Value,
_reader.AttributeUsage
);
bamlNode.LocalizabilityAncestor = PeekPropertyStack(bamlNode.PropertyName);
PushPropertyToStack(bamlNode.PropertyName, (ILocalizabilityInheritable) bamlNode);
AddChildToCurrentParent(bamlNode);
if (propertyOccurrences.Contains(_reader.Name))
{
// we autonumber properties that have occurrences larger than 1
object occurrence = propertyOccurrences[_reader.Name];
int index = 2;
if (occurrence is BamlPropertyNode)
{
// start numbering this property as the 2nd occurrence is encountered
// the value stores the 1st occurrence of the property at this point
((BamlPropertyNode) occurrence).Index = 1;
}else
{
// For the 3rd or more occurrences, the value stores the next index
// to assign to the property
index = (int) occurrence;
}
// auto-number the current property node
((BamlPropertyNode)bamlNode).Index = index;
propertyOccurrences[_reader.Name] = ++index;
}
else
{
// store the first occurrence of the property
propertyOccurrences[_reader.Name] = bamlNode;
}
break;
}
case BamlNodeType.DefAttribute :
{
if (_reader.Name == XamlReaderHelper.DefinitionUid)
{
// set the Uid proeprty when we see it.
((BamlStartElementNode)_currentParent).Uid = _reader.Value;
}
BamlTreeNode bamlNode = new BamlDefAttributeNode(
_reader.Name,
_reader.Value
);
AddChildToCurrentParent(bamlNode);
break;
}
case BamlNodeType.XmlnsProperty :
{
BamlTreeNode bamlNode = new BamlXmlnsPropertyNode(
_reader.LocalName,
_reader.Value
);
AddChildToCurrentParent(bamlNode);
break;
}
case BamlNodeType.ContentProperty :
{
BamlTreeNode bamlNode = new BamlContentPropertyNode(
_reader.AssemblyName,
_reader.Name.Substring(0, _reader.Name.LastIndexOf('.')),
_reader.LocalName
);
AddChildToCurrentParent(bamlNode);
break;
}
case BamlNodeType.PresentationOptionsAttribute:
{
BamlTreeNode bamlNode = new BamlPresentationOptionsAttributeNode(
_reader.Name,
_reader.Value
);
AddChildToCurrentParent(bamlNode);
break;
}
default :
{
throw new XamlParseException(SR.Get(SRID.UnRecognizedBamlNodeType, _reader.NodeType));
}
}
} while (_reader.MoveToNextProperty());
}
}
// At this point, the baml tree stack should be completely unwinded and also nothing more to read.
if (_reader.Read() || _bamlTreeStack.Count > 0)
{
throw new XamlParseException(SR.Get(SRID.InvalidEndOfBaml));
}
return new BamlTree(_root, _nodeCount);
//notice that we don't close the input stream because we don't own it.
}