private static BindingPropertyMatchInfo GetBetterProperty(BindingPropertyMatchInfo bestProperty, BindingPropertyMatchInfo newProperty)
{
if (newProperty.Compatibility == BindingPropertyCompatibility.None || bestProperty.Property != null && (bestProperty.Compatibility == BindingPropertyCompatibility.DataContext && PlatformTypes.Object.Equals((object)newProperty.PropertyType) || newProperty.Compatibility - bestProperty.Compatibility >= 0 && (newProperty.NullableNormalizedPropertyType == bestProperty.NullableNormalizedPropertyType || newProperty.NullableNormalizedPropertyType.IsAssignableFrom((ITypeId)bestProperty.NullableNormalizedPropertyType) || !bestProperty.NullableNormalizedPropertyType.IsAssignableFrom((ITypeId)newProperty.NullableNormalizedPropertyType))))
{
return(bestProperty);
}
return(newProperty);
}
public static BindingPropertyMatchInfo GetDefaultBindingPropertyInfo(SceneNode sceneNode, IType dataType)
{
BindingPropertyMatchInfo bestProperty = new BindingPropertyMatchInfo((IProperty)null);
IProperty property = sceneNode.ProjectContext.ResolveProperty(BaseFrameworkElement.DataContextProperty);
for (IType type = sceneNode.Type; type != null; type = type.BaseType)
{
ReferenceStep propertyInternal = BindingPropertyHelper.GetDefaultBindingPropertyInternal(type.NearestResolvedType, sceneNode.ProjectContext);
if (propertyInternal != null && BindingPropertyHelper.IsPropertyBindable(sceneNode, new PropertyReference(propertyInternal), BindingPropertyHelper.BindingType.Target))
{
BindingPropertyMatchInfo propertyMatchInfo = new BindingPropertyMatchInfo((IProperty)propertyInternal);
propertyMatchInfo.Compatibility = propertyInternal != property?BindingPropertyHelper.GetPropertyCompatibility(propertyMatchInfo, dataType, (ITypeResolver)sceneNode.ProjectContext) : BindingPropertyCompatibility.DataContext;
bestProperty = BindingPropertyHelper.GetBetterProperty(bestProperty, propertyMatchInfo);
}
}
return(bestProperty);
}
private static BindingPropertyCompatibility GetPropertyCompatibility(BindingPropertyMatchInfo propertyInfo, IType dataType, ITypeResolver typeResolver)
{
IType sourceType = DesignDataHelper.GetSourceType(dataType, typeResolver);
if (PlatformTypes.String.IsAssignableFrom((ITypeId)sourceType) && !PlatformTypes.String.IsAssignableFrom((ITypeId)propertyInfo.PropertyType) && PlatformTypes.IEnumerable.IsAssignableFrom((ITypeId)propertyInfo.PropertyType))
{
return(BindingPropertyCompatibility.None);
}
if (propertyInfo.NullableNormalizedPropertyType.IsAssignableFrom((ITypeId)sourceType) || propertyInfo.PropertyType.IsAssignableFrom((ITypeId)sourceType) || propertyInfo.PropertyType.IsBinding)
{
return(BindingPropertyCompatibility.Assignable);
}
TypeConverter typeConverter = propertyInfo.Property.TypeConverter ?? propertyInfo.Property.PropertyType.TypeConverter;
if (typeConverter != null && typeConverter.CanConvertFrom(sourceType.RuntimeType) && (!PlatformTypes.String.IsAssignableFrom((ITypeId)sourceType) || !PlatformTypes.IConvertible.IsAssignableFrom((ITypeId)propertyInfo.NullableNormalizedPropertyType)))
{
return(BindingPropertyCompatibility.Convertible);
}
return(PlatformTypes.String.IsAssignableFrom((ITypeId)propertyInfo.PropertyType) ? BindingPropertyCompatibility.StringSpecial : BindingPropertyCompatibility.None);
}
protected override IPropertyId GetDefaultPropertySelection()
{
BindingPropertyMatchInfo bindingPropertyInfo = BindingPropertyHelper.GetDefaultBindingPropertyInfo(this.TargetElement, this.targetPropertyType);
if (bindingPropertyInfo.Compatibility != BindingPropertyCompatibility.None)
{
ReferenceStep referenceStep = (ReferenceStep)bindingPropertyInfo.Property;
if (this.sourceBindingProperties.Contains(referenceStep))
{
return((IPropertyId)referenceStep);
}
}
foreach (ReferenceStep referenceStep in (IEnumerable <ReferenceStep>) this.sourceBindingProperties)
{
if (this.targetPropertyType != null && this.targetPropertyType.IsAssignableFrom((ITypeId)referenceStep.PropertyType))
{
return((IPropertyId)referenceStep);
}
}
return((IPropertyId)null);
}
