private void LazyFillOutBrowsableInfo()
{
foreach (CustomAttributeData customAttributeData in (IEnumerable <CustomAttributeData>) this.GetMethodInfo.GetCustomAttributesData())
{
if (customAttributeData.Constructor.DeclaringType.FullName.Equals(typeof(AttachedPropertyBrowsableForChildrenAttribute).FullName, StringComparison.Ordinal))
{
AttachedPropertyBrowsableForChildrenAttribute[] childrenAttributeArray = (AttachedPropertyBrowsableForChildrenAttribute[])this.runtimeGetMethodInfo.GetCustomAttributes(typeof(AttachedPropertyBrowsableForChildrenAttribute), false);
AttachedPropertyBrowsableForChildrenAttribute childrenAttribute = childrenAttributeArray.Length != 0 ? childrenAttributeArray[0] : (AttachedPropertyBrowsableForChildrenAttribute)null;
if (childrenAttribute != null)
{
if (childrenAttribute.IncludeDescendants)
{
this.browsableFlags = AttachedPropertyMetadata.BrowsableFlags.AllDescendants;
}
else
{
this.browsableFlags |= AttachedPropertyMetadata.BrowsableFlags.Children;
}
}
}
else if (customAttributeData.Constructor.DeclaringType.FullName.Equals(typeof(AttachedPropertyBrowsableForTypeAttribute).FullName, StringComparison.Ordinal))
{
AttachedPropertyBrowsableForTypeAttribute[] forTypeAttributeArray = (AttachedPropertyBrowsableForTypeAttribute[])this.runtimeGetMethodInfo.GetCustomAttributes(typeof(AttachedPropertyBrowsableForTypeAttribute), false);
AttachedPropertyBrowsableForTypeAttribute forTypeAttribute = forTypeAttributeArray.Length != 0 ? forTypeAttributeArray[0] : (AttachedPropertyBrowsableForTypeAttribute)null;
if (forTypeAttribute != null)
{
this.browsableTargetType = forTypeAttribute.TargetType;
}
}
else if (customAttributeData.Constructor.DeclaringType.FullName.Equals(typeof(AttachedPropertyBrowsableWhenAttributePresentAttribute).FullName, StringComparison.Ordinal))
{
AttachedPropertyBrowsableWhenAttributePresentAttribute[] presentAttributeArray = (AttachedPropertyBrowsableWhenAttributePresentAttribute[])this.runtimeGetMethodInfo.GetCustomAttributes(typeof(AttachedPropertyBrowsableWhenAttributePresentAttribute), false);
AttachedPropertyBrowsableWhenAttributePresentAttribute presentAttribute = presentAttributeArray.Length != 0 ? presentAttributeArray[0] : (AttachedPropertyBrowsableWhenAttributePresentAttribute)null;
if (presentAttribute != null)
{
this.browsableFlags |= AttachedPropertyMetadata.BrowsableFlags.AttributePresent;
this.browsableAttributePresentType = presentAttribute.AttributeType;
}
}
}
}
public bool Filter(PropertyDescriptor property)
{
if (this.element == null)
{
return(true);
}
// Filter the 20 stylistic set properties that I've never seen used.
if (property.Name.Contains("Typography.StylisticSet"))
{
return(false);
}
AttachedPropertyBrowsableForChildrenAttribute attachedPropertyForChildren = (AttachedPropertyBrowsableForChildrenAttribute)property.Attributes[typeof(AttachedPropertyBrowsableForChildrenAttribute)];
AttachedPropertyBrowsableForTypeAttribute attachedPropertyForType = (AttachedPropertyBrowsableForTypeAttribute)property.Attributes[typeof(AttachedPropertyBrowsableForTypeAttribute)];
AttachedPropertyBrowsableWhenAttributePresentAttribute attachedPropertyForAttribute = (AttachedPropertyBrowsableWhenAttributePresentAttribute)property.Attributes[typeof(AttachedPropertyBrowsableWhenAttributePresentAttribute)];
if (attachedPropertyForChildren != null)
{
DependencyPropertyDescriptor dpd = DependencyPropertyDescriptor.FromProperty(property);
if (dpd == null)
{
return(false);
}
FrameworkElement element = this.element;
do
{
element = element.Parent as FrameworkElement;
if (element != null && dpd.DependencyProperty.OwnerType.IsInstanceOfType(element))
{
return(true);
}
}while (attachedPropertyForChildren.IncludeDescendants && element != null);
return(false);
}
else if (attachedPropertyForType != null)
{
// when using [AttachedPropertyBrowsableForType(typeof(IMyInterface))] and IMyInterface is not a DependencyObject, Snoop crashes.
// see http://snoopwpf.codeplex.com/workitem/6712
if (attachedPropertyForType.TargetType.IsSubclassOf(typeof(DependencyObject)))
{
DependencyObjectType doType = DependencyObjectType.FromSystemType(attachedPropertyForType.TargetType);
if (doType != null && doType.IsInstanceOfType(this.element))
{
return(true);
}
}
return(false);
}
else if (attachedPropertyForAttribute != null)
{
Attribute dependentAttribute = TypeDescriptor.GetAttributes(this.target)[attachedPropertyForAttribute.AttributeType];
if (dependentAttribute != null)
{
return(!dependentAttribute.IsDefaultAttribute());
}
return(false);
}
return(true);
}