private static object ConvertPropertyPath(XamlTypeConverter converter, ITypeDescriptorContext context, CultureInfo culture, object value)
{
string typename;
string propertyname;
string index;
PropertyNodeType node;
string str = (string)value;
// Fastpath - if there are no prefixed types then we have nothing to expand
if (!str.Contains(":"))
{
return(new PropertyPath(str));
}
var parser = new PropertyPathParser(str);
var expanded = new StringBuilder();
while ((node = parser.Step(out typename, out propertyname, out index)) != PropertyNodeType.None)
{
switch (node)
{
case PropertyNodeType.AttachedProperty:
if (expanded.Length > 0)
{
expanded.Append('.');
}
if (typename.Contains(":"))
{
typename = converter.parser.ResolveType(typename).ToString();
expanded.AppendFormat("('{0}'.{1})", typename, propertyname);
}
else
{
expanded.AppendFormat("({0}.{1})", typename, propertyname);
}
break;
case PropertyNodeType.Indexed:
expanded.AppendFormat("[{0}]", index);
break;
case PropertyNodeType.Property:
if (expanded.Length > 0)
{
expanded.Append('.');
}
expanded.Append(propertyname);
break;
default:
throw new Exception(string.Format("Could not handle PropertyNodeType.{0}", node));
}
}
return(new PropertyPath(str, expanded.ToString()));
}
internal PropertyPathWalker(string path, bool isDatacontextBound)
{
Path = path;
StandardPropertyPathNode lastNode;
IsDataContextBound = isDatacontextBound;
if (path == null || path == ".")
{
//bindsDirectlyToSource set to true means that the binding is directly made to the source (--> there is no path)
lastNode = new StandardPropertyPathNode(); //what to put in there ?
FirstNode = lastNode;
FinalNode = lastNode;
}
else
{
PropertyNodeType type;
var parser = new PropertyPathParser(path);
string typeName;
string propertyName;
int index;
//IPropertyPathNode node;
while ((type = parser.Step(out typeName, out propertyName, out index)) != PropertyNodeType.None)
{
//we make node advance (when it is not the first step, otherwise it stays at null)
//node = FinalNode;
//var isViewProperty = false;
//boolean isViewProperty = CollectionViewProperties.Any (prop => prop.Name == propertyName);
// static readonly PropertyInfo[] CollectionViewProperties = typeof (ICollectionView).GetProperties ();
switch (type)
{
case PropertyNodeType.AttachedProperty:
case PropertyNodeType.Property:
if (FinalNode == null)
{
FinalNode = new StandardPropertyPathNode(typeName, propertyName);
}
else
{
FinalNode.Next = new StandardPropertyPathNode(typeName, propertyName);
}
break;
case PropertyNodeType.Indexed:
throw new NotImplementedException("Indexed properties are not supported yet.");
//todo: when we will handle the indexed properties, uncomment the following
//node.Next = new IndexedPropertyPathNode(index);
break;
default:
break;
}
if (FirstNode == null)
{
FirstNode = FinalNode;
}
if (FinalNode.Next != null)
{
FinalNode = FinalNode.Next;
}
}
}
this.FinalNode.Listen(this);
}
private IEnumerable <Tuple <DependencyObject, DependencyProperty, int?> > defaulAccessVisualStateProperty(DependencyObject rootTargetObjectInstance)
{
PropertyPathParser parser = new PropertyPathParser(Path);
string typeName, propertyName, index;
PropertyNodeType type;
var nodes = new List <Tuple <PropertyNodeType, Tuple <string /*type*/, string /*property*/, string /*index*/> > >();
while ((type = parser.Step(out typeName, out propertyName, out index)) != PropertyNodeType.None)
{
nodes.Add(
new Tuple <PropertyNodeType, Tuple <string, string, string> >(
type, new Tuple <string, string, string>(typeName, propertyName, index)));
}
int count = Math.Max(0, nodes.Count - 1);
List <Tuple <DependencyObject, DependencyProperty, int?> > list = new List <Tuple <DependencyObject, DependencyProperty, int?> >(count);
for (int j = 0; j < count; ++j)
{
type = nodes[j].Item1;
typeName = nodes[j].Item2.Item1;
propertyName = nodes[j].Item2.Item2;
index = nodes[j].Item2.Item3;
Tuple <DependencyObject, DependencyProperty, int?> tuple;
DependencyObject targetDO;
switch (type)
{
case PropertyNodeType.AttachedProperty:
case PropertyNodeType.Property:
targetDO = list.Count == 0 ?
rootTargetObjectInstance :
list[list.Count - 1].Item1;
Type targetType = targetDO.GetType();
PropertyInfo prop = targetType.GetProperty(propertyName);
DependencyObject value = (DependencyObject)prop.GetValue(targetDO);
DependencyProperty dp = (DependencyProperty)prop.DeclaringType.GetField(propertyName + "Property").GetValue(null);
tuple = new Tuple <DependencyObject, DependencyProperty, int?>(
value,
dp,
null);
list.Add(tuple);
yield return(tuple);
break;
case PropertyNodeType.Indexed:
int i;
int.TryParse(index, out i);
targetDO = rootTargetObjectInstance;
if (list.Count > 0)
{
#if OPENSILVER
if (true)
#elif BRIDGE
if (CSHTML5.Interop.IsRunningInTheSimulator)
#endif
{
// Note: In OpenSilver, we want to enter this case both in the simulator and
// the browser.
targetDO = (DependencyObject)((dynamic)list[list.Count - 1].Item1)[i];
}
else
{
// Note: getItem() is the indexer's name in the Bridge implementation.
// The use of 'dynamic' makes the above line return undefined when the application
// is running in javascript with CSHTML5.
targetDO = (DependencyObject)((dynamic)list[list.Count - 1].Item1).getItem(i);
}
}
tuple = new Tuple <DependencyObject, DependencyProperty, int?>(
targetDO,
null,
i);
list.Add(tuple);
yield return(tuple);
break;
}
}
if (!INTERNAL_IsDirectlyDependencyPropertyPath)
{
bool success = false;
DependencyProperty dp = null;
try
{
string name = nodes[nodes.Count - 1].Item2.Item2;
DependencyObject finalDO = count == 0 ? rootTargetObjectInstance : list[list.Count - 1].Item1;
dp = (DependencyProperty)finalDO.GetType()
.GetField(name + "Property", BindingFlags.FlattenHierarchy | BindingFlags.Static | BindingFlags.Public)
.GetValue(null);
success = dp != null;
}
finally
{
if (success)
{
INTERNAL_IsDirectlyDependencyPropertyPath = true;
INTERNAL_DependencyProperty = dp;
INTERNAL_DependencyPropertyName = dp.Name;
}
}
}
}
public PropertyPathWalker(string path, bool bindDirectlyToSource, bool bindsToView, bool isDataContextBound)
{
IsDataContextBound = isDataContextBound;
string index;
string propertyName;
string typeName;
PropertyNodeType type;
CollectionViewNode lastCVNode = null;
Path = path;
if (string.IsNullOrEmpty(path) || path == ".")
{
// If the property path is null or empty, we still need to add a CollectionViewNode
// to handle the case where we bind diretly to a CollectionViewSource. i.e. new Binding () { Source = cvs }
// An empty path means we always bind directly to the view.
Node = new CollectionViewNode(bindDirectlyToSource, bindsToView);
lastCVNode = (CollectionViewNode)Node;
FinalNode = Node;
}
else
{
var parser = new PropertyPathParser(path);
while ((type = parser.Step(out typeName, out propertyName, out index)) != PropertyNodeType.None)
{
bool isViewProperty = CollectionViewProperties.Any(prop => prop.Name == propertyName);
IPropertyPathNode node = new CollectionViewNode(bindDirectlyToSource, isViewProperty);
lastCVNode = (CollectionViewNode)node;
switch (type)
{
case PropertyNodeType.AttachedProperty:
case PropertyNodeType.Property:
node.Next = new StandardPropertyPathNode(typeName, propertyName);
break;
case PropertyNodeType.Indexed:
node.Next = new IndexedPropertyPathNode(index);
break;
default:
throw new Exception("Unsupported node type");
}
if (FinalNode != null)
{
FinalNode.Next = node;
}
else
{
Node = node;
}
FinalNode = node.Next;
}
}
lastCVNode.BindToView |= bindsToView;
FinalNode.IsBrokenChanged += delegate(object o, EventArgs e) {
Value = ((PropertyPathNode)o).Value;
var h = IsBrokenChanged;
if (h != null)
{
h(this, EventArgs.Empty);
}
};
FinalNode.ValueChanged += delegate(object o, EventArgs e) {
Value = ((PropertyPathNode)o).Value;
var h = ValueChanged;
if (h != null)
{
h(this, EventArgs.Empty);
}
};
}
public PropertyPathWalker (string path, bool bindDirectlyToSource, bool bindsToView, bool isDataContextBound)
{
IsDataContextBound = isDataContextBound;
string index;
string propertyName;
string typeName;
PropertyNodeType type;
CollectionViewNode lastCVNode = null;
Path = path;
if (string.IsNullOrEmpty (path) || path == ".") {
// If the property path is null or empty, we still need to add a CollectionViewNode
// to handle the case where we bind diretly to a CollectionViewSource. i.e. new Binding () { Source = cvs }
// An empty path means we always bind directly to the view.
Node = new CollectionViewNode (bindDirectlyToSource, bindsToView);
lastCVNode = (CollectionViewNode) Node;
FinalNode = Node;
} else {
var parser = new PropertyPathParser (path);
while ((type = parser.Step (out typeName, out propertyName, out index)) != PropertyNodeType.None) {
bool isViewProperty = CollectionViewProperties.Any (prop => prop.Name == propertyName);
IPropertyPathNode node = new CollectionViewNode (bindDirectlyToSource, isViewProperty);
lastCVNode = (CollectionViewNode) node;
switch (type) {
case PropertyNodeType.AttachedProperty:
case PropertyNodeType.Property:
node.Next = new StandardPropertyPathNode (typeName, propertyName);
break;
case PropertyNodeType.Indexed:
node.Next = new IndexedPropertyPathNode (index);
break;
default:
throw new Exception ("Unsupported node type");
}
if (FinalNode != null)
FinalNode.Next = node;
else
Node = node;
FinalNode = node.Next;
}
}
lastCVNode.BindToView |= bindsToView;
FinalNode.IsBrokenChanged += delegate (object o, EventArgs e) {
Value = ((PropertyPathNode) o).Value;
var h = IsBrokenChanged;
if (h != null)
h (this, EventArgs.Empty);
};
FinalNode.ValueChanged += delegate (object o, EventArgs e) {
Value = ((PropertyPathNode) o).Value;
var h = ValueChanged;
if (h != null)
h (this, EventArgs.Empty);
};
}
