public override Node RemoveChild(Node child)
{
throw new DOMException(ErrorCode.HierarchyRequestError);
}
public override Node InsertChild(int index, Node child)
{
throw new DOMException(ErrorCode.NotSupported);
}
public override Node AppendChild(Node child)
{
throw new DOMException(ErrorCode.NotSupported);
}
/// <summary>
/// Copies all (Node) properties of the source to the target.
/// </summary>
/// <param name="source">The source node.</param>
/// <param name="target">The target node.</param>
/// <param name="deep">Is a deep-copy required?</param>
protected static void CopyProperties(Node source, Node target, Boolean deep)
{
target._baseURI = source._baseURI;
target._name = source._name;
target._type = source.NodeType;
target._ns = source._ns;
if (deep)
{
for (int i = 0; i < source._children.Length; i++)
target._children.Add(source._children[i].CloneNode(true));
for (int i = 0; i < source._attributes.Length; i++)
target._attributes.SetNamedItem(source._attributes[i].CloneNode(true) as Attr);
}
}
/// <summary>
/// Compares the relative position in a node list.
/// </summary>
/// <param name="list">The node list as a base.</param>
/// <param name="nodeA">The first node.</param>
/// <param name="nodeB">The other node.</param>
/// <returns>The position.</returns>
static DocumentPosition CompareRelativePositionInNodeList(NodeList list, Node nodeA, Node nodeB)
{
var aPos = -1;
var bPos = -1;
for (int i = 0; i < list.Length; i++)
{
if (aPos == -1 && list[i].Contains(nodeA))
aPos = i;
if (bPos == -1 && list[i].Contains(nodeB))
bPos = i;
}
if (aPos < bPos)
return DocumentPosition.Preceding;
else if (bPos < aPos)
return DocumentPosition.Following;
else if (aPos != -1 && bPos != -1)
return CompareRelativePositionInNodeList(list[aPos].ChildNodes, nodeA, nodeB);
return DocumentPosition.Disconnected;
}
public virtual Boolean IsEqualNode(Node otherNode)
{
if (this._baseURI != otherNode._baseURI)
return false;
if (this._name != otherNode._name)
return false;
if (this._ns != otherNode._ns)
return false;
if (this._attributes.Length != otherNode._attributes.Length)
return false;
if (this._children.Length != otherNode._children.Length)
return false;
for (int i = 0; i < this._attributes.Length; i++)
{
if(!this._attributes[i].IsEqualNode(otherNode._attributes[i]))
return false;
}
for (int i = 0; i < this._children.Length; i++)
{
if(!this._children[i].IsEqualNode(otherNode._children[i]))
return false;
}
return true;
}
public virtual Node ReplaceChild(Node newChild, Node oldChild)
{
if (newChild is Attr || newChild is Document || newChild.Contains(this))
throw new DOMException(ErrorCode.HierarchyRequestError);
else if (newChild == oldChild)
return oldChild;
else if (newChild.ParentNode != null)
throw new DOMException(ErrorCode.InUse);
var n = _children.Length;
for (int i = 0; i < n; i++)
{
if (_children[i] == oldChild)
{
RemoveChild(oldChild);
InsertChild(i, newChild);
return oldChild;
}
}
return null;
}
public RangePosition ComparePoint(Node node, int offset)
{
throw new NotImplementedException();
}
public bool IntersectsNode(Node node)
{
throw new NotImplementedException();
}
public void SurroundContents(Node newParent)
{
throw new NotImplementedException();
}
public bool IsPointInRange(Node node, int offset)
{
throw new NotImplementedException();
}
public void InsertNode(Node node)
{
throw new NotImplementedException();
}
/// <summary>
/// Builds a list of nodes according with 8.4 Parsing HTML fragments.
/// </summary>
/// <param name="sourceCode">The string to use as source code.</param>
/// <param name="context">The context node to use.</param>
/// <returns>A list of parsed nodes.</returns>
public static NodeList HtmlFragment(String sourceCode, Node context = null)
{
var source = new SourceManager(sourceCode);
var doc = new HTMLDocument();
var db = new DocumentBuilder(source, doc);
if (context != null)
{
if (context.OwnerDocument != null && context.OwnerDocument.QuirksMode != QuirksMode.Off)
doc.QuirksMode = context.OwnerDocument.QuirksMode;
// Note: For performance reasons, an implementation that does not report errors and that uses
// the actual state machine described in this specification directly could use the
// PLAINTEXT state instead of the RAWTEXT and script data states where those are mentioned
// in the list above. Except for rules regarding parse errors, they are equivalent, since
// there is no appropriate end tag token in the fragment case, yet they involve far
// fewer state transitions.
((HtmlParser)db.parser).SwitchToFragment(context);
return db.HtmlResult.DocumentElement.ChildNodes;
}
return db.HtmlResult.ChildNodes;
}
public override Node ReplaceChild(Node newChild, Node oldChild)
{
throw new DOMException(ErrorCode.HierarchyRequestError);
}
public virtual Node InsertBefore(Node newElement, Node referenceElement)
{
if (newElement is Attr || newElement is Document || newElement.Contains(this))
throw new DOMException(ErrorCode.HierarchyRequestError);
var n = _children.Length;
for (int i = 0; i < n; i++)
{
if (_children[i] == referenceElement)
return InsertChild(i, newElement);
}
return AppendChild(newElement);
}
public void SetEnd(Node refNode, int offset)
{
throw new NotImplementedException();
}
public virtual Node InsertChild(Int32 index, Node child)
{
if (child is DocumentFragment)
{
var childs = child.ChildNodes;
for (int i = 0; i < childs.Length; i++)
InsertChild(index + i, childs[i]);
}
else if (child is Attr || child is Document || child.Contains(this))
{
throw new DOMException(ErrorCode.HierarchyRequestError);
}
else
{
if (child.ParentNode != null)
throw new DOMException(ErrorCode.InUse);
child._parent = this;
child.OwnerDocument = _owner ?? (this as Document);
_children.Insert(index, child);
}
return child;
}
public void SetEndBefore(Node refNode)
{
throw new NotImplementedException();
}
public virtual Node RemoveChild(Node child)
{
if (_children.Contains(child))
{
child._parent = null;
_children.Remove(child);
}
return child;
}
public void SetEndAfter(Node refNode)
{
throw new NotImplementedException();
}
/// <summary>
/// Finds the index of the given node.
/// </summary>
/// <param name="node">The node which needs to know its index.</param>
/// <returns>The index of the node or -1 if the node is not a child.</returns>
internal Int32 IndexOf(Node node)
{
var n = _children.Length;
for (var i = 0; i < n; i++)
{
if (_children[i] == node)
return i;
}
return -1;
}
public void SelectNodeContents(Node refNode)
{
throw new NotImplementedException();
}
/// <summary>
/// Runs the mutation macro as defined in 5.2.2 Mutation methods
/// of http://www.w3.org/TR/domcore/.
/// </summary>
/// <param name="nodes">The nodes array to add.</param>
/// <returns>A (single) node.</returns>
protected Node MutationMacro(Node[] nodes)
{
if (nodes.Length > 1)
{
var node = new DocumentFragment();
for (int i = 0; i < nodes.Length; i++)
node.AppendChild(nodes[i]);
return node;
}
return nodes[0];
}
public virtual Node CloneNode(Boolean deep = true)
{
var node = new Node();
CopyProperties(this, node, deep);
return node;
}
public override Node InsertBefore(Node newElement, Node referenceElement)
{
throw new DOMException(ErrorCode.NotSupported);
}
public virtual DocumentPosition CompareDocumentPosition(Node otherNode)
{
if (this == otherNode)
return DocumentPosition.Same;
if(this.OwnerDocument != otherNode.OwnerDocument)
{
return DocumentPosition.Disconnected | DocumentPosition.ImplementationSpecific |
(otherNode.GetHashCode() > this.GetHashCode() ? DocumentPosition.Following : DocumentPosition.Preceding);
}
else if (this.Contains(otherNode))
{
return DocumentPosition.ContainedBy | DocumentPosition.Following;
}
else if (otherNode.Contains(this))
{
return DocumentPosition.Contains | DocumentPosition.Preceding;
}
return CompareRelativePositionInNodeList(_owner.ChildNodes, this, otherNode);
}
public override Node ReplaceChild(Node newChild, Node oldChild)
{
throw new DOMException(ErrorCode.NotSupported);
}
public virtual Boolean Contains(Node otherNode)
{
if (otherNode == this)
return true;
for (int i = 0; i < _children.Length; i++)
{
if (_children[i] == otherNode)
return true;
else if (_children[i].Contains(otherNode))
return true;
}
return false;
}
/// <summary>
/// Builds a list of nodes according with 8.4 Parsing HTML fragments.
/// </summary>
/// <param name="sourceCode">The string to use as source code.</param>
/// <param name="context">[Optional] The context node to use.</param>
/// <param name="options">[Optional] Options to use for the document generation.</param>
/// <returns>A list of parsed nodes.</returns>
public static NodeList HtmlFragment(String sourceCode, Node context = null, DocumentOptions options = null)
{
var source = new SourceManager(sourceCode);
var doc = new HTMLDocument();
//Disable scripting for HTML fragments (security reasons)
options = options ?? new DocumentOptions(scripting: false);
var db = new DocumentBuilder(source, doc, options);
if (context != null)
{
if (context.OwnerDocument != null && context.OwnerDocument.QuirksMode != QuirksMode.Off)
doc.QuirksMode = context.OwnerDocument.QuirksMode;
var parser = (HtmlParser)db.parser;
parser.SwitchToFragment(context);
return parser.Result.DocumentElement.ChildNodes;
}
return db.HtmlResult.ChildNodes;
}
public override Boolean IsEqualNode(Node otherNode)
{
if (otherNode is Attr)
{
var a = this;
var b = (Attr)otherNode;
if (a._name == b._name && a._ns == b._ns && a._value == b._value)
return true;
}
return false;
}
