public void NodeChangedEvent(Object src, XmlNodeChangedEventArgs args)
{
if (!Static)
{
#region Attribute updates
// xmlns:xml is auto-inserted whenever a selectNode is performed, we don't want those events
if (args.Node is XmlText && args.NewParent is XmlAttribute && args.NewParent.Name != "xmlns:xml")
{
XmlAttribute attr = args.NewParent as XmlAttribute;
CssXmlElement elm = attr.OwnerElement as CssXmlElement;
if (elm != null)
{
elm.AttributeChange(attr, args);
}
}
else if (args.Node is XmlAttribute && args.Node.Name != "xmlns:xml")
{
// the cause of the change is a XmlAttribute => happens during inserting or removing
CssXmlElement oldElm = args.OldParent as CssXmlElement;
if (oldElm != null)
{
oldElm.AttributeChange(args.Node, args);
}
CssXmlElement newElm = args.NewParent as CssXmlElement;
if (newElm != null)
{
newElm.AttributeChange(args.Node, args);
}
}
#endregion
#region OnElementChange
if (args.Node is XmlText && args.NewParent is XmlElement)
{
CssXmlElement element = (CssXmlElement)args.NewParent;
element.ElementChange(src, args);
}
else if (args.Node is CssXmlElement)
{
if (args.Action == XmlNodeChangedAction.Insert || args.Action == XmlNodeChangedAction.Change)
{
// Changes to a child XML node may affect the sibling offsets (for example in tspan)
// By calling the parent's OnElementChange, invalidation will propogate back to Node
CssXmlElement newParent = (CssXmlElement)args.NewParent;
newParent.ElementChange(src, args);
}
if (args.Action == XmlNodeChangedAction.Remove)
{
// Removing a child XML node may affect the sibling offsets (for example in tspan)
CssXmlElement oldParent = (CssXmlElement)args.OldParent;
oldParent.ElementChange(src, args);
}
}
#endregion
}
}
protected void FireChildNodeChange(Object src, XmlNodeChangedEventArgs args, bool fireEvent)
{
if (fireEvent && childNodeChangeHandler != null)
{
childNodeChangeHandler(src, args);
}
CssXmlElement cssParent = ParentNode as CssXmlElement;
if (cssParent != null)
{
cssParent.ChildNodeChange(src, args);
}
}
protected void FireParentNodeChange(Object src, XmlNodeChangedEventArgs args, bool fireEvent)
{
if (fireEvent && parentNodeChangeHandler != null)
{
parentNodeChangeHandler(src, args);
}
foreach (XmlNode child in ChildNodes)
{
if (child.NodeType != XmlNodeType.Element)
{
continue;
}
CssXmlElement cssChild = child as CssXmlElement;
if (cssChild != null)
{
cssChild.ParentNodeChange(src, args);
}
}
}
public void NodeChangedEvent(object src, XmlNodeChangedEventArgs args)
{
if (_isStatic || args.Node == null || args.NewParent == null)
{
return;
}
var comparer = StringComparison.OrdinalIgnoreCase;
var nodeType = args.Node.NodeType;
var parentNodeType = args.NewParent.NodeType;
// Attribute updates
// xmlns:xml is auto-inserted whenever a selectNode is performed, we don't want those events
if (nodeType == XmlNodeType.Text && parentNodeType == XmlNodeType.Attribute &&
!string.Equals(args.NewParent.Name, XmlConstants.XmlNamespacePrefix, comparer))
{
XmlAttribute attr = args.NewParent as XmlAttribute;
CssXmlElement elm = attr.OwnerElement as CssXmlElement;
if (elm != null)
{
elm.AttributeChange(attr, args);
}
}
else if (nodeType == XmlNodeType.Attribute &&
!string.Equals(args.Node.Name, XmlConstants.XmlNamespacePrefix, comparer))
{
// the cause of the change is a XmlAttribute => happens during inserting or removing
CssXmlElement oldElm = args.OldParent as CssXmlElement;
if (oldElm != null)
{
oldElm.AttributeChange(args.Node, args);
}
CssXmlElement newElm = args.NewParent as CssXmlElement;
if (newElm != null)
{
newElm.AttributeChange(args.Node, args);
}
}
// OnElementChange
if (nodeType == XmlNodeType.Text && parentNodeType == XmlNodeType.Element)
{
CssXmlElement element = (CssXmlElement)args.NewParent;
element.ElementChange(src, args);
}
else if (args.Node is CssXmlElement)
{
if (args.Action == XmlNodeChangedAction.Insert || args.Action == XmlNodeChangedAction.Change)
{
// Changes to a child XML node may affect the sibling offsets (for example in tspan)
// By calling the parent's OnElementChange, invalidation will propogate back to Node
CssXmlElement newParent = (CssXmlElement)args.NewParent;
newParent.ElementChange(src, args);
}
else if (args.Action == XmlNodeChangedAction.Remove)
{
// Removing a child XML node may affect the sibling offsets (for example in tspan)
CssXmlElement oldParent = (CssXmlElement)args.OldParent;
oldParent.ElementChange(src, args);
}
}
}
