private void OnTargetMidPropertyChanged(object sender, PropertyChangedEventArgs e)
{
if (context != null && SynchronizationContext.Current != context)
{
context.Post((o) =>
{
SynchronizationContext.SetSynchronizationContext(context);
OnTargetMidPropertyChanged(sender, e);
}, this);
return;
}
for (int i = targetInfos.Length - 1; i >= 0; i--)
{
var info = targetInfos[i];
if (info.Name == e.PropertyName)
{
break;
}
var notify = targetObjects[i].Target as INotifyPropertyChanged;
if (notify != null)
{
RemoveTargetHandlers(notify);
}
targetObjects[i] = null;
}
bool above = true;
var tokens = TargetPath.Split('.');
for (int i = 0; i < targetInfos.Length; i++)
{
var info = targetInfos[i];
if (info.Name != e.PropertyName && above)
{
continue;
}
above = false;
object targetObj = targetObjects[i].Target;
if (targetObj == null)
{
Deactivate();
return;
}
if (targetObj.GetType().IsArray)
{
targetObj = ((Array)targetObj).GetValue(targetIndices[i].Cast <int>().ToArray());
}
else
{
targetObj = info.GetValue(targetObj, targetIndices[i]);
}
targetObj = GetNotifier(targetObj);
if (Device.Reflector.GetProperty(targetObj.GetType(), info.Name) == null)
{
var pairable = targetObj as IPairable;
if (pairable != null)
{
targetObj = pairable.Pair;
}
}
targetObjects[i + 1] = new WeakReference(targetObj);
if (i >= targetInfos.Length - 2)
{
var notify = targetObj as INotifyPropertyChanged;
if (notify != null)
{
RemoveTargetHandlers(notify);
notify.PropertyChanged += OnTargetEndPropertyChanged;
}
OnTargetEndPropertyChanged(this, new PropertyChangedEventArgs(targetInfos.Last().Name));
break;
}
else
{
var notify = targetObj as INotifyPropertyChanged;
if (notify != null)
{
RemoveTargetHandlers(notify);
notify.PropertyChanged += OnTargetMidPropertyChanged;
}
}
}
}
internal void Activate()
{
var sourceObject = GetNotifier(Source ?? Target);
var type = sourceObject.GetType();
var sourceTokens = SourcePath.Split('.');
sourceInfos = new PropertyInfo[sourceTokens.Length];
sourceObjects = new object[sourceTokens.Length];
sourceIndices = new object[sourceTokens.Length][];
for (int i = 0; i < sourceTokens.Length; i++)
{
string token = sourceTokens[i];
if (token[token.Length - 1] == ']')
{
int start = token.IndexOf('[') + 1;
sourceIndices[i] = ParseIndex(token.Substring(start, token.Length - start - 1));
token = token.Substring(0, start - 1);
}
var props = Device.Reflector.GetProperties(type).Where(p => p.Name == token);
var sourceInfo = props.FirstOrDefault(p => p.DeclaringType == type) ?? props.FirstOrDefault();
if (sourceInfo != null && sourceIndices[i] != null)
{
sourceObject = sourceInfo.GetValue(sourceObject, null);
type = sourceObject.GetType();
if (!type.IsArray)
{
sourceInfo = Device.Reflector.GetProperty(type, "Item");
}
}
if (sourceInfo == null)
{
var pairable = sourceObject as IPairable;
if (pairable != null && pairable.Pair != null)
{
sourceObject = pairable.Pair;
type = sourceObject.GetType();
props = Device.Reflector.GetProperties(type).Where(p => p.Name == token);
sourceInfo = props.FirstOrDefault(p => p.DeclaringType == type) ?? props.FirstOrDefault();
if (sourceInfo != null && sourceIndices[i] != null)
{
sourceObject = sourceInfo.GetValue(sourceObject, null);
type = sourceObject.GetType();
if (!type.IsArray)
{
sourceInfo = Device.Reflector.GetProperty(type, "Item");
}
}
}
}
if (sourceInfo == null)
{
throw new ArgumentException(string.Format("Could not find a property with the name '{0}'.", token));
}
if (i < sourceTokens.Length - 1)
{
var notify = sourceObject as INotifyPropertyChanged;
if (notify != null)
{
RemoveSourceHandlers(notify);
notify.PropertyChanged += OnSourceMidPropertyChanged;
}
}
sourceInfos[i] = sourceInfo;
sourceObjects[i] = sourceObject;
if (type.IsArray)
{
type = sourceObject.GetType().GetElementType();
sourceObject = ((Array)sourceObject).GetValue(sourceIndices[i].Cast <int>().ToArray());
}
else
{
type = sourceInfo.PropertyType;
sourceObject = sourceInfo.GetValue(sourceObject, sourceIndices[i]);
}
sourceObject = GetNotifier(sourceObject);
if (sourceObject != null)
{
type = sourceObject.GetType();
}
}
var notifier = sourceObjects.Last() as INotifyPropertyChanged;
if (notifier != null)
{
RemoveSourceHandlers(notifier);
notifier.PropertyChanged += OnSourceEndPropertyChanged;
}
var targetObject = GetNotifier(Target);
type = targetObject.GetType();
var targetTokens = TargetPath.Split('.');
targetInfos = new PropertyInfo[targetTokens.Length];
targetObjects = new WeakReference[targetTokens.Length];
targetIndices = new object[targetTokens.Length][];
for (int i = 0; i < targetTokens.Length; i++)
{
string token = targetTokens[i];
if (token[token.Length - 1] == ']')
{
int start = token.IndexOf('[') + 1;
targetIndices[i] = ParseIndex(token.Substring(start, token.Length - start - 1));
token = token.Substring(0, start - 1);
}
var props = Device.Reflector.GetProperties(type).Where(p => p.Name == token);
var targetInfo = props.FirstOrDefault(p => p.DeclaringType == type) ?? props.FirstOrDefault();
if (targetInfo != null && targetIndices[i] != null)
{
targetObject = targetInfo.GetValue(targetObject, null);
type = targetObject.GetType();
if (!type.IsArray)
{
targetInfo = Device.Reflector.GetProperty(type, "Item");
}
}
if (targetInfo == null)
{
var pairable = targetObject as IPairable;
if (pairable != null && pairable.Pair != null)
{
targetObject = pairable.Pair;
type = targetObject.GetType();
props = Device.Reflector.GetProperties(type).Where(p => p.Name == token);
targetInfo = props.FirstOrDefault(p => p.DeclaringType == type) ?? props.FirstOrDefault();
if (targetInfo != null && targetIndices[i] != null)
{
targetObject = targetInfo.GetValue(targetObject, null);
type = targetObject.GetType();
if (!type.IsArray)
{
targetInfo = Device.Reflector.GetProperty(type, "Item");
}
}
}
}
if (targetInfo == null)
{
throw new ArgumentException(string.Format("Could not find a property with the name '{0}'.", token));
}
if (i < targetTokens.Length - 1)
{
var notify = targetObject as INotifyPropertyChanged;
if (notify != null)
{
RemoveTargetHandlers(notify);
notify.PropertyChanged += OnTargetMidPropertyChanged;
}
}
targetInfos[i] = targetInfo;
targetObjects[i] = new WeakReference(targetObject);
if (type.IsArray)
{
type = targetObject.GetType().GetElementType();
targetObject = ((Array)targetObject).GetValue(targetIndices[i].Cast <int>().ToArray());
}
else
{
type = targetInfo.PropertyType;
targetObject = targetInfo.GetValue(targetObject, targetIndices[i]);
}
targetObject = GetNotifier(targetObject);
if (targetObject != null)
{
type = targetObject.GetType();
}
}
notifier = targetObjects.Last().Target as INotifyPropertyChanged;
if (notifier != null)
{
RemoveTargetHandlers(notifier);
notifier.PropertyChanged += OnTargetEndPropertyChanged;
}
if (Mode == BindingMode.OneWayToSource)
{
OnTargetEndPropertyChanged(this, new PropertyChangedEventArgs(targetInfos.Last().Name));
}
else
{
OnSourceEndPropertyChanged(this, new PropertyChangedEventArgs(sourceInfos.Last().Name));
}
isActive = true;
}
