public void Visit(ElementNode node, INode parentNode)
{
XmlName propertyName;
if (TryGetPropertyName(node, parentNode, out propertyName) && propertyName == XmlName._CreateContent)
{
var s0 = Values[parentNode];
if (s0 is ElementTemplate)
{
SetTemplate(s0 as ElementTemplate, node);
return;
}
}
var parentElement = parentNode as IElementNode;
propertyName = XmlName.Empty;
//Simplify ListNodes with single elements
var pList = parentNode as ListNode;
if (pList != null && pList.CollectionItems.Count == 1)
{
propertyName = pList.XmlName;
parentNode = parentNode.Parent;
parentElement = parentNode as IElementNode;
}
var value = Values[node];
if (propertyName != XmlName.Empty || TryGetPropertyName(node, parentNode, out propertyName))
{
if (Skips.Contains(propertyName))
{
return;
}
if (parentElement == null)
{
return;
}
if (parentElement.SkipProperties.Contains(propertyName))
{
return;
}
var source = Values[parentNode];
ProvideValue(ref value, node, source, propertyName);
SetPropertyValue(source, propertyName, value, Context.RootElement, node, Context, node);
}
else if (IsCollectionItem(node, parentNode) && parentNode is IElementNode)
{
var source = Values[parentNode];
ProvideValue(ref value, node, source, XmlName.Empty);
string contentProperty;
Exception xpe = null;
var xKey = node.Properties.ContainsKey(XmlName.xKey) ? ((ValueNode)node.Properties[XmlName.xKey]).Value as string : null;
//ResourceDictionary
if (xpe == null && TryAddToResourceDictionary(source as ResourceDictionary, value, xKey, node, out xpe))
{
return;
}
// Collection element, implicit content, or implicit collection element.
if (xpe == null && typeof(IEnumerable).IsAssignableFrom(Context.Types[parentElement]) && Context.Types[parentElement].GetRuntimeMethods().Any(mi => mi.Name == "Add" && mi.GetParameters().Length == 1))
{
var addMethod =
Context.Types[parentElement].GetRuntimeMethods().First(mi => mi.Name == "Add" && mi.GetParameters().Length == 1);
addMethod?.Invoke(source, new[] { value });
return;
}
if (xpe == null && (contentProperty = GetContentPropertyName(Context.Types[parentElement].GetTypeInfo())) != null)
{
var name = new XmlName(node.NamespaceURI, contentProperty);
if (Skips.Contains(name))
{
return;
}
if (parentElement.SkipProperties.Contains(propertyName))
{
return;
}
SetPropertyValue(source, name, value, Context.RootElement, node, Context, node);
return;
}
if (xpe == null && Context.Types[parentElement].GetRuntimeMethods().Any(mi => mi.Name == "Add" && mi.GetParameters().Length == 1))
{
//if there are similar parameters in the function, this will exist issue.
var addMethod = Context.Types[parentElement].GetRuntimeMethods().First(mi => mi.Name == "Add" && mi.GetParameters().Length == 1);
if (addMethod != null)
{
addMethod.Invoke(source, new[] { value });
}
return;
}
xpe = xpe ?? new XamlParseException($"Can not set the content of {((IElementNode)parentNode).XmlType.Name} as it doesn't have a ContentPropertyAttribute", node);
if (Context.ExceptionHandler != null)
{
Context.ExceptionHandler(xpe);
}
throw xpe;
}
else if (IsCollectionItem(node, parentNode) && parentNode is ListNode)
{
var source = Values[parentNode.Parent];
ProvideValue(ref value, node, source, XmlName.Empty);
var parentList = (ListNode)parentNode;
if (Skips.Contains(parentList.XmlName))
{
return;
}
Exception xpe = null;
var xKey = node.Properties.ContainsKey(XmlName.xKey) ? ((ValueNode)node.Properties[XmlName.xKey]).Value as string : null;
object _;
var collection = GetPropertyValue(source, parentList.XmlName, Context, parentList, out _) as IEnumerable;
if (collection == null)
{
xpe = new XamlParseException($"Property {parentList.XmlName.LocalName} is null or is not IEnumerable", node);
}
if (xpe == null && TryAddToResourceDictionary(collection as ResourceDictionary, value, xKey, node, out xpe))
{
return;
}
MethodInfo addMethod;
if (xpe == null && (addMethod = collection.GetType().GetRuntimeMethods().First(mi => mi.Name == "Add" && mi.GetParameters().Length == 1)) != null)
{
addMethod.Invoke(collection, new[] { Values[node] });
return;
}
xpe = xpe ?? new XamlParseException($"Value of {parentList.XmlName.LocalName} does not have a Add() method", node);
if (Context.ExceptionHandler != null)
{
Context.ExceptionHandler(xpe);
}
else
{
throw xpe;
}
}
}
static IList <KeyValuePair <XmlName, INode> > ParseXamlAttributes(XmlReader reader, out IList <KeyValuePair <string, string> > xmlns)
{
Debug.Assert(reader.NodeType == XmlNodeType.Element);
var attributes = new List <KeyValuePair <XmlName, INode> >();
xmlns = new List <KeyValuePair <string, string> >();
for (var i = 0; i < reader.AttributeCount; i++)
{
reader.MoveToAttribute(i);
//skip xmlns
if (reader.NamespaceURI == "http://www.w3.org/2000/xmlns/")
{
xmlns.Add(new KeyValuePair <string, string>(reader.LocalName, reader.Value));
continue;
}
var namespaceUri = reader.NamespaceURI;
if (reader.LocalName.Contains(".") && namespaceUri == "")
{
namespaceUri = ((IXmlNamespaceResolver)reader).LookupNamespace("");
}
var propertyName = new XmlName(namespaceUri, reader.LocalName);
object value = reader.Value;
if (reader.NamespaceURI == X2006Uri)
{
switch (reader.Name)
{
case "x:Key":
propertyName = XmlName.xKey;
break;
case "x:Name":
propertyName = XmlName.xName;
break;
case "x:Class":
case "x:FieldModifier":
continue;
default:
Debug.WriteLine("Unhandled attribute {0}", reader.Name);
continue;
}
}
if (reader.NamespaceURI == X2009Uri)
{
switch (reader.Name)
{
case "x:Key":
propertyName = XmlName.xKey;
break;
case "x:Name":
propertyName = XmlName.xName;
break;
case "x:TypeArguments":
propertyName = XmlName.xTypeArguments;
value = TypeArgumentsParser.ParseExpression((string)value, (IXmlNamespaceResolver)reader, (IXmlLineInfo)reader);
break;
case "x:DataType":
propertyName = XmlName.xDataType;
break;
case "x:Class":
case "x:FieldModifier":
continue;
case "x:FactoryMethod":
propertyName = XmlName.xFactoryMethod;
break;
case "x:Arguments":
propertyName = XmlName.xArguments;
break;
default:
Debug.WriteLine("Unhandled attribute {0}", reader.Name);
continue;
}
}
var propertyNode = GetValueNode(value, reader);
attributes.Add(new KeyValuePair <XmlName, INode>(propertyName, propertyNode));
}
reader.MoveToElement();
return(attributes);
}
static void ParseXamlElementFor(IElementNode node, XmlReader reader)
{
Debug.Assert(reader.NodeType == XmlNodeType.Element);
var elementName = reader.Name;
var isEmpty = reader.IsEmptyElement;
if (isEmpty)
{
return;
}
while (reader.Read())
{
switch (reader.NodeType)
{
case XmlNodeType.EndElement:
Debug.Assert(reader.Name == elementName); //make sure we close the right element
return;
case XmlNodeType.Element:
// 1. Property Element.
if (reader.Name.Contains("."))
{
XmlName name;
if (reader.Name.StartsWith(elementName + ".", StringComparison.Ordinal))
{
name = new XmlName(reader.NamespaceURI, reader.Name.Substring(elementName.Length + 1));
}
else //Attached DP
{
name = new XmlName(reader.NamespaceURI, reader.LocalName);
}
var prop = ReadNode(reader);
if (prop != null)
{
node.Properties.Add(name, prop);
}
}
// 2. Xaml2009 primitives, x:Arguments, ...
else if (reader.NamespaceURI == X2009Uri && reader.LocalName == "Arguments")
{
var prop = ReadNode(reader);
if (prop != null)
{
node.Properties.Add(XmlName.xArguments, prop);
}
}
// 3. DataTemplate (should be handled by 4.)
else if ((node.XmlType.NamespaceUri == XFUri || node.XmlType.NamespaceUri == NUI2018Uri) &&
(node.XmlType.Name == "DataTemplate" || node.XmlType.Name == "ControlTemplate"))
{
var prop = ReadNode(reader, true);
if (prop != null)
{
node.Properties.Add(XmlName._CreateContent, prop);
}
}
// 4. Implicit content, implicit collection, or collection syntax. Add to CollectionItems, resolve case later.
else
{
var item = ReadNode(reader, true);
if (item != null)
{
node.CollectionItems.Add(item);
}
}
break;
case XmlNodeType.Whitespace:
break;
case XmlNodeType.Text:
case XmlNodeType.CDATA:
if (node.CollectionItems.Count == 1 && node.CollectionItems[0] is ValueNode)
{
((ValueNode)node.CollectionItems[0]).Value += reader.Value.Trim();
}
else
{
node.CollectionItems.Add(new ValueNode(reader.Value.Trim(), (IXmlNamespaceResolver)reader));
}
break;
default:
Debug.WriteLine("Unhandled node {0} {1} {2}", reader.NodeType, reader.Name, reader.Value);
break;
}
}
}
public static object Create(XmlReader reader, bool doNotThrow = false)
{
object inflatedView = null;
if (reader != null)
{
while (reader.Read())
{
//Skip until element
if (reader.NodeType == XmlNodeType.Whitespace)
{
continue;
}
if (reader.NodeType == XmlNodeType.XmlDeclaration)
{
continue;
}
if (reader.NodeType != XmlNodeType.Element)
{
Debug.WriteLine("Unhandled node {0} {1} {2}", reader.NodeType, reader.Name, reader.Value);
continue;
}
var rootnode = new RuntimeRootNode(new XmlType(reader.NamespaceURI, reader.Name, null), null, (IXmlNamespaceResolver)reader);
XamlParser.ParseXaml(rootnode, reader);
var visitorContext = new HydrationContext
{
ExceptionHandler = doNotThrow ? e => { } : (Action <Exception>)null,
};
var cvv = new CreateValuesVisitor(visitorContext);
// Visit Parameter Properties to create instance from parameterized constructor
var type = XamlParser.GetElementType(rootnode.XmlType, rootnode, null, out XamlParseException xpe);
if (xpe != null)
{
throw xpe;
}
var ctorInfo =
type.GetTypeInfo()
.DeclaredConstructors.FirstOrDefault(
ci =>
ci.GetParameters().Length != 0 && ci.IsPublic &&
ci.GetParameters().All(pi => pi.CustomAttributes.Any(attr => attr.AttributeType == typeof(ParameterAttribute))));
if (ctorInfo != null)
{
foreach (var parameter in ctorInfo.GetParameters())
{
var propname =
parameter.CustomAttributes.First(ca => ca.AttributeType.FullName == "Tizen.NUI.Binding.ParameterAttribute")?
.ConstructorArguments.First()
.Value as string;
var name = new XmlName("", propname);
if (rootnode.Properties.TryGetValue(name, out INode node) && node is ValueNode)
{
node.Accept(cvv, rootnode);
}
}
}
cvv.Visit((ElementNode)rootnode, null);
inflatedView = rootnode.Root = visitorContext.Values[rootnode];
visitorContext.RootElement = inflatedView as BindableObject;
Visit(rootnode, visitorContext);
break;
}
}
return(inflatedView);
}
