private QuickFix[] GetAttributeValueFixes(XmlElement element, string name)
{
ElementType et = documentType.GetElementType(element);
if (et == null)
{
return(QuickFix.EmptyList);
}
ArrayList ret = new ArrayList();
Attribute attr = et.GetAttribute(name);
// TODO: M: think about fixing up others, eg. NMTOKEN
switch (attr.Type)
{
case AttributeType.ID:
// TODO: M: think about re-parsing rather than gen new
Guid guid = Guid.NewGuid();
string id = "ID-" + guid.ToString();
ret.Add(new QuickFixChangeAttribute(element, name, id));
break;
}
return(ret.ToArray(typeof(QuickFix)) as QuickFix[]);
}
private void ValidateRemovedAttribute(XmlElement e, XmlAttribute a)
{
ElementType et = documentType.GetElementType(e);
if (et == null)
{
return;
}
Attribute attr = et.GetAttribute(a);
if (attr == null)
{
// attribute was invalid, so remove that error
AttributeErrorFilter aef = new AttributeErrorFilter(e, a, ValidationErrorType.AttributeNotDefined);
RemoveValidationErrors(aef);
return;
}
else
{
// remove any validation errors for this attribute
AttributeErrorFilter aef = new AttributeErrorFilter(e, a);
RemoveValidationErrors(aef);
}
if (attr.State == AttributeState.Required)
{
// removing a required attribute
AddValidationError(e, new ValidationErrorAttribute(e, a.Name, ValidationErrorType.RequiredAttributeMissing));
}
}
public bool IsAttributeValid(XmlElement element, string name, XmlAttribute actual)
{
if (!HasElements)
{
// there is no DTD so return valid
return(true);
}
Attribute attr = LookupAttribute(element, name);
if (attr == null && actual != null)
{
return(false);
}
if (actual == null && attr != null)
{
return(attr.State != AttributeState.Required);
}
// TODO: L: don't think this can happen
if (actual == null && attr == null)
{
return(false);
}
return(validationEngine.ValidateAttribute(attr, element, actual));
}
private void RemoveIdOrIdRef(XmlElement e, XmlAttribute a)
{
ElementType et = documentType.GetElementType(e);
XmlName xn = new XmlName(a);
Attribute attr = et.GetAttribute(xn);
if (attr == null)
{
return;
}
AttributeBinding ab;
string val = a.Value;
switch (attr.Type)
{
case AttributeType.ID:
// record the previous id because we'll need that later (NodeChanged event)
ab = new AttributeBinding(e, attr.Name, val, a.Specified);
idTracker.RemoveId(ab);
ProcessRemovedId(val);
break;
case AttributeType.IDREF:
case AttributeType.IDREFS:
ab = new AttributeBinding(e, attr.Name, val, a.Specified);
idTracker.RemoveIdRefs(ab);
break;
}
}
private bool ValidateEnumeratedAttribute(Attribute a, XmlAttribute val)
{
foreach (string s in a.Enums)
{
if (s.Equals(val.Value))
{
return(true);
}
}
return(false);
}
public AttributeType GetAttributeType(XmlElement element, string name)
{
Attribute attr = LookupAttribute(element, name);
if (attr == null)
{
throw new ArgumentException("Attribute is not defined");
}
return(attr.Type);
}
private void AddIdOrIdRef(XmlElement e, XmlAttribute a, Attribute attr)
{
// any previous value will have been removed in NodeChanging event
AttributeBinding ab;
string val = a.Value;
switch (attr.Type)
{
case AttributeType.ID:
ab = new AttributeBinding(e, attr.Name, val, a.Specified);
idTracker.AddId(ab);
if (idTracker.IdCount(val) > 1)
{
foreach (AttributeBinding ab2 in idTracker.GetIdBindings(val))
{
// TODO: L: inefficient, lots of removing then adding
XmlAttribute a2 = ab2.Element.GetAttributeNode(ab2.Name);
AttributeErrorFilter aef = new AttributeErrorFilter(ab2.Element, a2, ValidationErrorType.IdAttributeInUse);
RemoveValidationErrors(aef);
ValidationErrorAttribute vea = new ValidationErrorAttribute(ab2.Element, a2.Name, ValidationErrorType.IdAttributeInUse);
AddValidationError(ab2.Element, vea);
}
}
foreach (AttributeBinding ab2 in idTracker.GetIdRefBindings(val))
{
XmlAttribute ar = ab.Element.GetAttributeNode(ab2.Name);
AttributeErrorFilter aef = new AttributeErrorFilter(ab2.Element, ar, ValidationErrorType.IdAttributeNotDefined);
RemoveValidationErrors(aef);
}
break;
case AttributeType.IDREF:
case AttributeType.IDREFS:
ab = new AttributeBinding(e, attr.Name, val, a.Specified);
idTracker.AddIdRefs(ab);
// TODO: L: inefficient - we split twice, here and in AddIdRefs
foreach (string id in ab.Value.Split(' '))
{
if (idTracker.IdCount(id) == 0)
{
ValidationErrorAttribute vea = new ValidationErrorAttribute(e, a.Name, ValidationErrorType.IdAttributeNotDefined);
AddValidationError(e, vea);
}
}
break;
}
}
public string[] GetEnumValues(XmlElement element, string name)
{
Attribute attr = LookupAttribute(element, name);
if (attr == null)
{
throw new ArgumentException("Attribute is not defined");
}
if (attr.Type != AttributeType.Enumerated)
{
throw new ArgumentException("Attribute is not enumeration");
}
return(attr.Enums);
}
// private IList FilterValidNext(IList col, XmlElement n)
// {
// ArrayList ret=new ArrayList();
// foreach ( SimpleReference sr in col )
// {
// if ( ret.Contains(sr) )
// continue;
//
// if ( n != null &&
// FindInCollection(sr.OriginalReference.GetValidNextElements(), n) != null )
// ret.Add(sr);
// }
// return ret;
// }
// private IList GetValidFirstCaseElements(ElementType et, XmlElement e)
// {
// ArrayList ret=new ArrayList();
// IList col=et.ContentModel.GetValidFirstElements();
// foreach ( SimpleReference sr in col )
// {
// if ( ret.Contains(sr) )
// continue;
//
// if ( FindInCollection(sr.OriginalReference.GetValidNextElements(), e) != null )
// ret.Add(sr);
// }
// return ret;
// }
// private SimpleReference FindReference(ElementType et, XmlElement parent, XmlElement n)
// {
// IList col=et.ContentModel.GetValidFirstElements();
// SimpleReference r=null;
// foreach ( XmlNode c in parent.ChildNodes )
// {
// if ( c.NodeType != XmlNodeType.Element )
// continue;
//
// XmlElement child=(XmlElement) c;
//
// if ( child.Equals(n) )
// break;
//
// r=FindInCollection(col, child);
// if ( r == null )
// return null;
//
// col=r.OriginalReference.GetValidNextElements();
// if ( col.Count == 0 )
// return null;
//
// r=(SimpleReference) col[0];
// }
// return r;
// }
private void ValidateAttributeAddOrChange(XmlAttribute a)
{
XmlElement e = a.OwnerElement;
if (documentType == null || e == null)
{
return;
}
if (e.ParentNode == null)
{
// node is not in document yet
return;
}
ElementType et = documentType.GetElementType(e);
if (et == null)
{
return;
}
AttributeErrorFilter aef = new AttributeErrorFilter(e, a);
RemoveValidationErrors(aef);
Attribute attr = et.GetAttribute(a);
if (attr == null)
{
ValidationError ve = new ValidationErrorAttribute(e, a.Name, ValidationErrorType.AttributeNotDefined);
AddValidationError(e, ve);
return;
}
// it's only at this point we can even tell if it's ID/IDREF
AddIdOrIdRef(e, a, attr);
if (!validationEngine.ValidateAttribute(attr, e, a))
{
ValidationError ve = new ValidationErrorAttribute(e, a.Name, ValidationErrorType.InvalidAttributeValue);
AddValidationError(e, ve);
}
}
internal bool ValidateAttribute(Attribute a, XmlElement e, XmlAttribute val)
{
if (!val.Specified)
{
// if not specified then either required | (defaulted | implied)
return(a.State != AttributeState.Required);
}
switch (a.Type)
{
case AttributeType.CDATA:
// any value is ok
return(true);
case AttributeType.Enumerated:
return(ValidateEnumeratedAttribute(a, val));
case AttributeType.ID:
return(ValidateIdAttribute(val));
case AttributeType.IDREF:
return(ValidateIdRefAttribute(val, false));
case AttributeType.IDREFS:
return(ValidateIdRefAttribute(val, true));
case AttributeType.NMTOKEN:
return(ValidateNmtokenAttribute(val, false));
case AttributeType.NMTOKENS:
return(ValidateNmtokenAttribute(val, true));
default:
// TODO: M: support other types (entity and notation)
return(true);
}
}
private bool ValidateEnumeratedAttribute(Attribute a, XmlAttribute val)
{
foreach ( string s in a.Enums )
{
if ( s.Equals(val.Value) )
return true;
}
return false;
}
internal bool ValidateAttribute(Attribute a, XmlElement e, XmlAttribute val)
{
if ( !val.Specified )
// if not specified then either required | (defaulted | implied)
return a.State != AttributeState.Required;
switch ( a.Type )
{
case AttributeType.CDATA:
// any value is ok
return true;
case AttributeType.Enumerated:
return ValidateEnumeratedAttribute(a, val);
case AttributeType.ID:
return ValidateIdAttribute(val);
case AttributeType.IDREF:
return ValidateIdRefAttribute(val, false);
case AttributeType.IDREFS:
return ValidateIdRefAttribute(val, true);
case AttributeType.NMTOKEN:
return ValidateNmtokenAttribute(val, false);
case AttributeType.NMTOKENS:
return ValidateNmtokenAttribute(val, true);
default:
// TODO: M: support other types (entity and notation)
return true;
}
}
private void AddIdOrIdRef(XmlElement e, XmlAttribute a, Attribute attr)
{
// any previous value will have been removed in NodeChanging event
AttributeBinding ab;
string val=a.Value;
switch ( attr.Type )
{
case AttributeType.ID:
ab=new AttributeBinding(e, attr.Name, val, a.Specified);
idTracker.AddId(ab);
if ( idTracker.IdCount(val) > 1 )
{
foreach ( AttributeBinding ab2 in idTracker.GetIdBindings(val) )
{
// TODO: L: inefficient, lots of removing then adding
XmlAttribute a2=ab2.Element.GetAttributeNode(ab2.Name);
AttributeErrorFilter aef=new AttributeErrorFilter(ab2.Element, a2, ValidationErrorType.IdAttributeInUse);
RemoveValidationErrors(aef);
ValidationErrorAttribute vea=new ValidationErrorAttribute(ab2.Element, a2.Name, ValidationErrorType.IdAttributeInUse);
AddValidationError(ab2.Element, vea);
}
}
foreach ( AttributeBinding ab2 in idTracker.GetIdRefBindings(val) )
{
XmlAttribute ar=ab.Element.GetAttributeNode(ab2.Name);
AttributeErrorFilter aef=new AttributeErrorFilter(ab2.Element, ar, ValidationErrorType.IdAttributeNotDefined);
RemoveValidationErrors(aef);
}
break;
case AttributeType.IDREF:
case AttributeType.IDREFS:
ab=new AttributeBinding(e, attr.Name, val, a.Specified);
idTracker.AddIdRefs(ab);
// TODO: L: inefficient - we split twice, here and in AddIdRefs
foreach ( string id in ab.Value.Split(' ') )
if ( idTracker.IdCount(id) == 0 )
{
ValidationErrorAttribute vea=new ValidationErrorAttribute(e, a.Name, ValidationErrorType.IdAttributeNotDefined);
AddValidationError(e, vea);
}
break;
}
}
public bool IsAttributeDefined(XmlElement element, string name)
{
Attribute attr = LookupAttribute(element, name);
return(attr != null);
}
public bool IsAttributeFixed(XmlElement element, string name)
{
Attribute attr = LookupAttribute(element, name);
return(attr != null && attr.State == AttributeState.Fixed);
}