/// <summary>
/// Move VSM to last child of element.
/// </summary>
/// <param name="element">Element that is getting its VSM moved to the end.</param>
private void ReorderChildNodes(XElement element)
{
List <NodeCollection> nodeCollections = new List <NodeCollection>();
List <NodeCollection> propertyElementCollection = new List <NodeCollection>();
NodeCollection vsmNodeCollection = new NodeCollection();
var parentName = element.Name;
var children = element.Nodes().ToList();
bool hasCollectionBeenAdded = false;
NodeCollection currentNodeCollection = null;
//remove last new line node to prevent new lines on every format
if (this.Mode == VisualStateManagerRule.Last)
{
children.Remove(children.Last());
}
foreach (var child in children)
{
if (currentNodeCollection == null)
{
currentNodeCollection = new NodeCollection();
}
currentNodeCollection.Nodes.Add(child);
if (child.NodeType == XmlNodeType.Element)
{
var childName = ((XElement)child).Name;
if (this.VSMNode.IsMatch(childName))
{
// Extract VSM for adding to end.
vsmNodeCollection = currentNodeCollection;
hasCollectionBeenAdded = true;
}
else if (childName.LocalName.StartsWith($"{parentName.LocalName}.", StringComparison.Ordinal))
{
// Extract property-element syntax nodes.
propertyElementCollection.Add(currentNodeCollection);
hasCollectionBeenAdded = true;
}
else if (!hasCollectionBeenAdded)
{
// Maintain all other nodes.
nodeCollections.Add(currentNodeCollection);
hasCollectionBeenAdded = true;
}
currentNodeCollection = null;
hasCollectionBeenAdded = false;
}
}
// Add any trailing non-Element nodes (e.g., comments).
if (currentNodeCollection != null)
{
nodeCollections.Add(currentNodeCollection);
}
var newNodes = ((this.Mode == VisualStateManagerRule.Last)
? propertyElementCollection.SelectMany(_ => _.Nodes)
.Concat(nodeCollections.SelectMany(_ => _.Nodes))
.Concat(vsmNodeCollection.Nodes)
: propertyElementCollection.SelectMany(_ => _.Nodes)
.Concat(vsmNodeCollection.Nodes)
.Concat(nodeCollections.SelectMany(_ => _.Nodes))).ToList();
var firstNode = newNodes.First() as XText;
if ((this.Mode == VisualStateManagerRule.Last) &&
firstNode != null &&
string.IsNullOrWhiteSpace(firstNode.Value.Trim()))
{
newNodes.Remove(firstNode);
}
element.ReplaceNodes(newNodes);
}
/// <summary>
/// Reorder child nodes matching ChildNodeNames
/// </summary>
/// <param name="element">Element thats getting its children reordered</param>
private void ReorderChildNodes(XElement element)
{
List <NodeCollection> nodeCollections = new List <NodeCollection>();
var children = element.Nodes();
// This indicates if last element matched ChildNodeNames.
bool inMatchingChildBlock = false;
// This value changes each time a non matching ChildNodeName is reached ensuring
// that only sortable elements are reordered.
int childBlockIndex = 0;
NodeCollection currentNodeCollection = null;
// Run through children.
foreach (var child in children)
{
if (currentNodeCollection == null)
{
currentNodeCollection = new NodeCollection();
nodeCollections.Add(currentNodeCollection);
}
if (child.NodeType == XmlNodeType.Element)
{
XElement childElement = (XElement)child;
var isMatchingChild = this.ChildNodeNames.Any(_ => _.IsMatch(childElement.Name));
if (isMatchingChild == false || inMatchingChildBlock == false)
{
childBlockIndex++;
inMatchingChildBlock = isMatchingChild;
}
if (isMatchingChild)
{
currentNodeCollection.SortAttributeValues =
this.SortByAttributes.Select(_ => _.GetValue(childElement)).ToArray();
}
currentNodeCollection.BlockIndex = childBlockIndex;
}
currentNodeCollection.Nodes.Add(child);
if (child.NodeType == XmlNodeType.Element)
{
currentNodeCollection = null;
}
}
if (currentNodeCollection != null)
{
currentNodeCollection.BlockIndex = (childBlockIndex + 1);
}
// Sort node list.
nodeCollections = nodeCollections.OrderBy(_ => _).ToList();
// Replace the element's nodes.
element.ReplaceNodes(nodeCollections.SelectMany(_ => _.Nodes));
}