/// <summary>
/// Method to read a child or a sibling of the node.
/// </summary>
/// <param name="xmlTextReader">The XML text reader.</param>
/// <param name="currentDepth">The current depth on the XML tree.</param>
/// <param name="node">The XML node.</param>
/// <param name="nodeNameAttribute">The node attribute name.</param>
private static void ReadChildOrSibling(XmlTextReader xmlTextReader,
int currentDepth,
NppXmlNode node,
string nodeNameAttribute)
{
var nodeName = xmlTextReader.Name;
if (!string.IsNullOrEmpty(nodeNameAttribute))
{
var attr = xmlTextReader.GetAttribute(nodeNameAttribute);
if (attr != null)
{
nodeName = attr;
}
}
node.Name = nodeName;
while (xmlTextReader.Read())
{
// It's a sibling.
if (currentDepth == xmlTextReader.Depth)
{
if (xmlTextReader.NodeType != XmlNodeType.Element || !xmlTextReader.IsStartElement())
{
return;
}
var sibling = new NppXmlNode(xmlTextReader.Name,
new NppXmlNodePosition(xmlTextReader),
node.Parent);
node.Parent.AddNode(sibling);
// Can be a single node.
sibling.EndPosition = new NppXmlNodePosition(xmlTextReader, true);
ReadChildOrSibling(xmlTextReader, xmlTextReader.Depth, sibling, nodeNameAttribute);
sibling.EndPosition = new NppXmlNodePosition(xmlTextReader, true);
return;
}
if (xmlTextReader.NodeType != XmlNodeType.Element || !xmlTextReader.IsStartElement())
{
continue;
}
// It's a child.
var child = new NppXmlNode(xmlTextReader.Name, new NppXmlNodePosition(xmlTextReader), node);
node.AddNode(child);
// Can be a single node.
child.EndPosition = new NppXmlNodePosition(xmlTextReader, true);
ReadChildOrSibling(xmlTextReader, xmlTextReader.Depth, child, nodeNameAttribute);
child.EndPosition = new NppXmlNodePosition(xmlTextReader, true);
}
}
/// <summary>
/// The default constructor for the class.
/// </summary>
/// <param name="name">The node name.</param>
/// <param name="startPosition">The node start position.</param>
/// <param name="parent">The parent node.</param>
internal NppXmlNode(string name, NppXmlNodePosition startPosition, NppXmlNode parent)
{
this.Name = name;
this.StartPosition = startPosition;
this.ChildNodes = new List<NppXmlNode>();
this.Parent = parent;
this.Id = nodeId;
nodeId++;
}
/// <summary>
/// The default constructor for the class.
/// </summary>
/// <param name="name">The node name.</param>
/// <param name="startPosition">The node start position.</param>
/// <param name="parent">The parent node.</param>
private NppXmlNode(string name, NppXmlNodePosition startPosition, NppXmlNode parent)
{
Name = name;
StartPosition = startPosition;
Parent = parent;
Id = _nodeId;
_childNodes = new List <NppXmlNode>();
_nodeId++;
}
/// <summary>
/// Method to try parse the XML.
/// </summary>
/// <param name="xml">The XMl as string.</param>
/// <param name="nodeNameAttribute">
/// The attribute, that will be used as node name. If no one of that attribute, tag name
/// will be used
/// </param>
/// <param name="logger">The logger.</param>
/// <param name="nppXmlNode">The Notepad++ XmlNode.</param>
/// <returns>True if parse successfully, false otherwise.</returns>
public static bool TryParse(string xml, string nodeNameAttribute, ILogger logger, out NppXmlNode nppXmlNode)
{
nppXmlNode = null;
_nodeId = 1;
try
{
using (var stringReader = new StringReader(xml))
{
using (var xmlTextReader = new XmlTextReader(stringReader))
{
while (xmlTextReader.Read())
{
if (xmlTextReader.NodeType != XmlNodeType.Element || !xmlTextReader.IsStartElement())
{
continue;
}
nppXmlNode = new NppXmlNode(xmlTextReader.Name, new NppXmlNodePosition(xmlTextReader));
ReadChildOrSibling(xmlTextReader, xmlTextReader.Depth, nppXmlNode, nodeNameAttribute);
}
if (null == nppXmlNode)
{
throw new ArgumentException("nppXmlNode");
}
nppXmlNode.EndPosition = new NppXmlNodePosition(xmlTextReader, true);
return(true);
}
}
}
catch (Exception exception)
{
logger.Warning(exception, exception.Message);
nppXmlNode = null;
return(false);
}
}
/// <summary>
/// Background worker method to do the user interface updated.
/// </summary>
/// <param name="sender">The background worker object.</param>
/// <param name="e">The event arguments.</param>
private void BackgroundWorker_UpdateUserInterfaceDoWork(object sender, DoWorkEventArgs e)
{
this._rootNode = null;
if (!this.ButtonToggle.InvokeRequired)
{
this.ButtonToggle.Invoke(new EnableToggleButtonDelegate(EnableToggleButton), false);
}
else
{
EnableToggleButton(false);
}
if (this.treeView.InvokeRequired)
{
this.treeView.Invoke(new SetTreeviewVisibilityDelegate(SetTreeviewVisibility), false);
}
else
{
SetTreeviewVisibility(false);
}
if (this.LabelStatus.InvokeRequired)
{
this.LabelStatus.Invoke(new SetStatusLabelTextDelegate(SetStatusLabelText), "Parsing the document");
}
else
{
SetStatusLabelText("Parsing the document");
}
// Do validations.
if (!NppXmlNode.TryParse(GetDocumentText(PluginBase.GetCurrentScintilla()), out this._rootNode))
{
if (this.LabelStatus.InvokeRequired)
{
this.LabelStatus.Invoke(new SetStatusLabelTextDelegate(SetStatusLabelText), "Document is not valid.");
}
else
{
SetStatusLabelText("Document is not valid.");
}
this._workerIsRunning = false;
return;
}
if (this.treeView.InvokeRequired)
{
this.treeView.Invoke(new ClearNodesDelegate(ClearNodes));
}
else
{
ClearNodes();
}
if (this.treeView.InvokeRequired)
{
this.treeView.Invoke(new AddNodeToTreeViewDelegate(AddNodeToTreeView), GenerateTreeNode(this._rootNode));
}
else
{
this.treeView.Nodes.Add(GenerateTreeNode(this._rootNode));
}
// Add the rest of the nodes.
var treeNode = this.treeView.Nodes[0];
AddNode(this._rootNode, treeNode);
// Finish up the operation.
if (this.treeView.InvokeRequired)
{
this.treeView.Invoke(new ExpandTreeViewDelegate(ExpandTreeView));
}
else
{
ExpandTreeView();
}
if (this.LabelStatus.InvokeRequired)
{
this.LabelStatus.Invoke(new SetStatusLabelTextDelegate(SetStatusLabelText), string.Empty);
}
else
{
SetStatusLabelText(string.Empty);
}
if (!this.ButtonToggle.InvokeRequired)
{
this.ButtonToggle.Invoke(new EnableToggleButtonDelegate(EnableToggleButton), true);
}
else
{
EnableToggleButton(true);
}
this._workerIsRunning = false;
}
/// <summary>
/// Method to add a npp xml node to a tree node.
/// </summary>
/// <param name="inXmlNode">The npp xml node.</param>
/// <param name="inTreeNode">The tree node.</param>
private void AddNode(NppXmlNode inXmlNode, TreeNode inTreeNode)
{
if (!inXmlNode.HasChildNodes)
{
return;
}
for (var i = 0; i < inXmlNode.ChildNodes.Count; i++)
{
var xNode = inXmlNode.ChildNodes[i];
if (this.treeView.InvokeRequired)
{
this.treeView.Invoke(new AddNodeToNodeDelegate(AddNodeToNode), GenerateTreeNode(xNode), inTreeNode);
}
else
{
AddNodeToNode(GenerateTreeNode(xNode), inTreeNode);
}
AddNode(xNode, inTreeNode.Nodes[i]);
}
}
/// <summary>
/// Method to generate a treenode from a npp tree node.
/// </summary>
/// <param name="node">The npp tree node.</param>
/// <returns>The tree node.</returns>
private static TreeNode GenerateTreeNode(NppXmlNode node)
{
return new TreeNode
{
ToolTipText = $"{node.Name}",
Tag = new TextBoundary(node.StartPosition, node.EndPosition, node.Id),
Text = node.Name,
// The name is the key.
Name = node.Id.ToString()
};
}
private void AddNode(NppXmlNode node)
{
_childNodes.Add(node);
}
/// <summary>
/// Method to try parse the XML.
/// </summary>
/// <param name="xml">The XMl as string.</param>
/// <param name="logger">The logger.</param>
/// <param name="nppXmlNode">The Notepad++ XmlNode.</param>
/// <returns>True if parse successfully, false otherwise.</returns>
public static bool TryParse(string xml, ILogger logger, out NppXmlNode nppXmlNode)
{
return(TryParse(xml, null, logger, out nppXmlNode));
}
/// <summary>
/// Method to read a child or a sibling of the node.
/// </summary>
/// <param name="xmlTextReader">The XML text reader.</param>
/// <param name="currentDepth">The current depth on the XML tree.</param>
/// <param name="node">The XML node</param>
private static void ReadChildOrSibling(XmlTextReader xmlTextReader, int currentDepth, NppXmlNode node)
{
while (xmlTextReader.Read())
{
// It's a sibling.
if (currentDepth == xmlTextReader.Depth)
{
if (xmlTextReader.NodeType != XmlNodeType.Element || !xmlTextReader.IsStartElement())
{
return;
}
var sibling = new NppXmlNode(xmlTextReader.Name, new NppXmlNodePosition(xmlTextReader), node.Parent);
node.Parent.ChildNodes.Add(sibling);
// Can be a single node.
sibling.EndPosition = new NppXmlNodePosition(xmlTextReader, true);
ReadChildOrSibling(xmlTextReader, xmlTextReader.Depth, sibling);
sibling.EndPosition = new NppXmlNodePosition(xmlTextReader, true);
return;
}
if (xmlTextReader.NodeType != XmlNodeType.Element || !xmlTextReader.IsStartElement())
{
continue;
}
// It's a child.
var child = new NppXmlNode(xmlTextReader.Name, new NppXmlNodePosition(xmlTextReader), node);
node.ChildNodes.Add(child);
// Can be a single node.
child.EndPosition = new NppXmlNodePosition(xmlTextReader, true);
ReadChildOrSibling(xmlTextReader, xmlTextReader.Depth, child);
child.EndPosition = new NppXmlNodePosition(xmlTextReader, true);
}
}
/// <summary>
/// Method to try parse the XML.
/// </summary>
/// <param name="xml">The XMl as string.</param>
/// <param name="nppXmlNode">The Notepad++ XmlNode.</param>
/// <returns>True if parse successfully, false otherwise.</returns>
public static bool TryParse(string xml, out NppXmlNode nppXmlNode)
{
nppXmlNode = null;
nodeId = 1;
try
{
using (var stringReader = new StringReader(xml))
{
using (var xmlTextReader = new XmlTextReader(stringReader))
{
while (xmlTextReader.Read())
{
if (xmlTextReader.NodeType != XmlNodeType.Element || !xmlTextReader.IsStartElement())
{
continue;
}
nppXmlNode = new NppXmlNode(xmlTextReader.Name, new NppXmlNodePosition(xmlTextReader));
ReadChildOrSibling(xmlTextReader, xmlTextReader.Depth, nppXmlNode);
}
if (null == nppXmlNode)
{
throw new ArgumentException("nppXmlNode");
}
nppXmlNode.EndPosition = new NppXmlNodePosition(xmlTextReader, true);
return true;
}
}
}
catch
{
nppXmlNode = null;
return false;
}
}
