ExtensionNodeType.FieldData CreateFieldData(MemberInfo member, NodeAttributeAttribute at, out string name, ref ExtensionNodeType.FieldData boundAttributeType)
{
ExtensionNodeType.FieldData fdata = new ExtensionNodeType.FieldData ();
fdata.Member = member;
fdata.Required = at.Required;
fdata.Localizable = at.Localizable;
if (at.Name != null && at.Name.Length > 0)
name = at.Name;
else
name = member.Name;
if (typeof(CustomExtensionAttribute).IsAssignableFrom (fdata.MemberType)) {
if (boundAttributeType != null)
throw new InvalidOperationException ("Type '" + member.DeclaringType + "' has two members bound to a custom attribute. There can be only one.");
boundAttributeType = fdata;
return null;
}
return fdata;
}
bool InitializeNodeType (ExtensionNodeType ntype)
{
RuntimeAddin p = AddinManager.SessionService.GetAddin (ntype.AddinId);
if (p == null) {
if (!AddinManager.SessionService.IsAddinLoaded (ntype.AddinId)) {
if (!AddinManager.SessionService.LoadAddin (null, ntype.AddinId, false))
return false;
p = AddinManager.SessionService.GetAddin (ntype.AddinId);
if (p == null) {
AddinManager.ReportError ("Add-in not found", ntype.AddinId, null, false);
return false;
}
}
}
// If no type name is provided, use TypeExtensionNode by default
if (ntype.TypeName == null || ntype.TypeName.Length == 0) {
ntype.Type = typeof(TypeExtensionNode);
return true;
}
ntype.Type = p.GetType (ntype.TypeName, false);
if (ntype.Type == null) {
AddinManager.ReportError ("Extension node type '" + ntype.TypeName + "' not found.", ntype.AddinId, null, false);
return false;
}
Hashtable fields = new Hashtable ();
// Check if the type has NodeAttribute attributes applied to fields.
foreach (FieldInfo field in ntype.Type.GetFields (BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance)) {
NodeAttributeAttribute at = (NodeAttributeAttribute) Attribute.GetCustomAttribute (field, typeof(NodeAttributeAttribute), true);
if (at != null) {
ExtensionNodeType.FieldData fdata = new ExtensionNodeType.FieldData ();
fdata.Field = field;
fdata.Required = at.Required;
fdata.Localizable = at.Localizable;
string name;
if (at.Name != null && at.Name.Length > 0)
name = at.Name;
else
name = field.Name;
fields [name] = fdata;
}
}
if (fields.Count > 0)
ntype.Fields = fields;
return true;
}