/// <summary>
/// It seems like BamlReader will always output 'x:Key' as last property. However, it must be specified as attribute in valid .xaml, so we move it to the front
/// of the attribute list.
/// </summary>
void MoveXKeyToFront(XamlNode node)
{
foreach (XamlNode child in node.Children)
{
MoveXKeyToFront(child);
}
XamlObjectNode obj = node as XamlObjectNode;
if (obj != null && obj.Children.Count > 0)
{
XamlMemberNode memberNode = obj.Children[obj.Children.Count - 1] as XamlMemberNode;
if (memberNode != null && memberNode.Member == XamlLanguage.Key)
{
// move memberNode in front of the first member node:
for (int i = 0; i < obj.Children.Count; i++)
{
if (obj.Children[i] is XamlMemberNode)
{
obj.Children.Insert(i, memberNode);
obj.Children.RemoveAt(obj.Children.Count - 1);
break;
}
}
}
}
}
static List <XamlNode> Parse(XamlReader reader)
{
List <XamlNode> currentList = new List <XamlNode>();
Stack <List <XamlNode> > stack = new Stack <List <XamlNode> >();
while (reader.Read())
{
switch (reader.NodeType)
{
case XamlNodeType.None:
break;
case XamlNodeType.StartObject:
XamlObjectNode obj = new XamlObjectNode(reader.Type);
currentList.Add(obj);
stack.Push(currentList);
currentList = obj.Children;
break;
case XamlNodeType.GetObject:
XamlGetObjectNode getObject = new XamlGetObjectNode();
currentList.Add(getObject);
stack.Push(currentList);
currentList = getObject.Children;
break;
case XamlNodeType.StartMember:
XamlMemberNode member = new XamlMemberNode(reader.Member);
currentList.Add(member);
stack.Push(currentList);
currentList = member.Children;
break;
case XamlNodeType.Value:
currentList.Add(new XamlValueNode(reader.Value));
break;
case XamlNodeType.NamespaceDeclaration:
currentList.Add(new XamlNamespaceDeclarationNode(reader.Namespace));
break;
case XamlNodeType.EndObject:
case XamlNodeType.EndMember:
currentList = stack.Pop();
break;
default:
throw new InvalidOperationException("Invalid value for XamlNodeType");
}
}
if (stack.Count != 0)
{
throw new InvalidOperationException("Imbalanced stack");
}
return(currentList);
}
void RemoveConnectionIds(XamlNode node, Dictionary <int, EventRegistration[]> eventMappings, XamlSchemaContext context)
{
foreach (XamlNode child in node.Children)
{
RemoveConnectionIds(child, eventMappings, context);
}
XamlObjectNode obj = node as XamlObjectNode;
if (obj != null && obj.Children.Count > 0)
{
var removableNodes = new List <XamlMemberNode>();
var addableNodes = new List <XamlMemberNode>();
foreach (XamlMemberNode memberNode in obj.Children.OfType <XamlMemberNode>())
{
if (memberNode.Member == XamlLanguage.ConnectionId && memberNode.Children.Single() is XamlValueNode)
{
var value = memberNode.Children.Single() as XamlValueNode;
int id;
if (value.Value is string && int.TryParse(value.Value as string, out id) && eventMappings.ContainsKey(id))
{
var map = eventMappings[id];
foreach (var entry in map)
{
if (entry.IsAttached)
{
var type = context.GetXamlType(Type.GetType(entry.AttachSourceType));
var member = new XamlMemberNode(new XamlMember(entry.EventName, type, true));
member.Children.Add(new XamlValueNode(entry.MethodName));
addableNodes.Add(member);
}
else
{
var member = new XamlMemberNode(obj.Type.GetMember(entry.EventName));
member.Children.Add(new XamlValueNode(entry.MethodName));
addableNodes.Add(member);
}
}
removableNodes.Add(memberNode);
}
}
}
foreach (var rnode in removableNodes)
{
node.Children.Remove(rnode);
}
node.Children.InsertRange(node.Children.Count > 1 ? node.Children.Count - 1 : 0, addableNodes);
}
}
void AvoidContentProperties(XamlNode node)
{
foreach (XamlNode child in node.Children)
{
AvoidContentProperties(child);
}
XamlObjectNode obj = node as XamlObjectNode;
if (obj != null)
{
// Visit all except for the last child:
for (int i = 0; i < obj.Children.Count - 1; i++)
{
// Avoids using content property syntax for simple string values, if the content property is not the last member.
// Without this, we cannot decompile <GridViewColumn Header="Culture" DisplayMemberBinding="{Binding Culture}" />,
// because the Header property is the content property, but there is no way to represent the Binding as an element.
XamlMemberNode memberNode = obj.Children[i] as XamlMemberNode;
if (memberNode != null && memberNode.Member == obj.Type.ContentProperty)
{
if (memberNode.Children.Count == 1 && memberNode.Children[0] is XamlValueNode)
{
// By creating a clone of the XamlMember, we prevent WPF from knowing that it's the content property.
XamlMember member = memberNode.Member;
memberNode.Member = new XamlMember(member.Name, member.DeclaringType, member.IsAttachable);
}
}
}
// We also need to avoid using content properties that have a markup extension as value, as the XamlXmlWriter would always expand those:
for (int i = 0; i < obj.Children.Count; i++)
{
XamlMemberNode memberNode = obj.Children[i] as XamlMemberNode;
if (memberNode != null && memberNode.Member == obj.Type.ContentProperty && memberNode.Children.Count == 1)
{
XamlObjectNode me = memberNode.Children[0] as XamlObjectNode;
if (me != null && me.Type.IsMarkupExtension)
{
// By creating a clone of the XamlMember, we prevent WPF from knowing that it's the content property.
XamlMember member = memberNode.Member;
memberNode.Member = new XamlMember(member.Name, member.DeclaringType, member.IsAttachable);
}
}
}
}
}
void RemoveConnectionIds(XamlNode node, Dictionary<int, EventRegistration[]> eventMappings, XamlSchemaContext context)
{
foreach (XamlNode child in node.Children)
RemoveConnectionIds(child, eventMappings, context);
XamlObjectNode obj = node as XamlObjectNode;
if (obj != null && obj.Children.Count > 0) {
var removableNodes = new List<XamlMemberNode>();
var addableNodes = new List<XamlMemberNode>();
foreach (XamlMemberNode memberNode in obj.Children.OfType<XamlMemberNode>()) {
if (memberNode.Member == XamlLanguage.ConnectionId && memberNode.Children.Single() is XamlValueNode) {
var value = memberNode.Children.Single() as XamlValueNode;
int id;
if (value.Value is string && int.TryParse(value.Value as string, out id) && eventMappings.ContainsKey(id)) {
var map = eventMappings[id];
foreach (var entry in map) {
if (entry.IsAttached) {
var type = context.GetXamlType(Type.GetType(entry.AttachSourceType));
var member = new XamlMemberNode(new XamlMember(entry.EventName, type, true));
member.Children.Add(new XamlValueNode(entry.MethodName));
addableNodes.Add(member);
} else {
var member = new XamlMemberNode(obj.Type.GetMember(entry.EventName));
member.Children.Add(new XamlValueNode(entry.MethodName));
addableNodes.Add(member);
}
}
removableNodes.Add(memberNode);
}
}
}
foreach (var rnode in removableNodes)
node.Children.Remove(rnode);
node.Children.InsertRange(node.Children.Count > 1 ? node.Children.Count - 1 : 0, addableNodes);
}
}
static List<XamlNode> Parse(XamlReader reader)
{
List<XamlNode> currentList = new List<XamlNode>();
Stack<List<XamlNode>> stack = new Stack<List<XamlNode>>();
while (reader.Read()) {
switch (reader.NodeType) {
case XamlNodeType.None:
break;
case XamlNodeType.StartObject:
XamlObjectNode obj = new XamlObjectNode(reader.Type);
currentList.Add(obj);
stack.Push(currentList);
currentList = obj.Children;
break;
case XamlNodeType.GetObject:
XamlGetObjectNode getObject = new XamlGetObjectNode();
currentList.Add(getObject);
stack.Push(currentList);
currentList = getObject.Children;
break;
case XamlNodeType.StartMember:
XamlMemberNode member = new XamlMemberNode(reader.Member);
currentList.Add(member);
stack.Push(currentList);
currentList = member.Children;
break;
case XamlNodeType.Value:
currentList.Add(new XamlValueNode(reader.Value));
break;
case XamlNodeType.NamespaceDeclaration:
currentList.Add(new XamlNamespaceDeclarationNode(reader.Namespace));
break;
case XamlNodeType.EndObject:
case XamlNodeType.EndMember:
currentList = stack.Pop();
break;
default:
throw new InvalidOperationException("Invalid value for XamlNodeType");
}
}
if (stack.Count != 0)
throw new InvalidOperationException("Imbalanced stack");
return currentList;
}
