XPathObjectNode(XPathObjectContext context, object target, string name, XPathObjectNode parent, IList <XPathObjectNode> siblings, int index)
{
_context = context ?? throw new ArgumentNullException("context");
_target = target ?? throw new ArgumentNullException("target");
_parent = parent;
_siblings = siblings;
_index = index;
if (string.IsNullOrEmpty(name))
{
if (target is IXmlInfo info)
{
name = info.XmlNodeName();
}
else
{
var type = target.GetType();
name = target.GetType().Name;
if (type.IsGenericType)
{
name = name.Remove(name.IndexOf('`'));
}
}
}
_name = GetAtomicString(name);
}
XPathObjectNavigator(XPathObjectNavigator that)
{
_context = that._context;
_root = that._root;
_node = that._node;
_type = that._type;
_index = that._index;
}
XPathObjectNavigator(XPathObjectNavigator that)
{
_context = that._context;
_root = that._root;
_node = that._node;
_type = that._type;
_index = that._index;
}
///
internal XPathObjectNavigator(object root, XPathObjectContext context)
{
if (root == null) throw new ArgumentNullException("root");
if (context == null) throw new ArgumentNullException("context");
_context = context;
_root = new XPathObjectNode(context, root);
//???? fails without it
var type = root.GetType();
var name = type.FullName;
if (type.IsGenericType)
name = name.Remove(name.IndexOf('`'));
_root.AddSpecialName("type", name);
}
///
public override bool MoveTo(XPathNavigator other)
{
if (!(other is XPathObjectNavigator that))
{
return(false);
}
_context = that._context;
_root = that._root;
_node = that._node;
_type = that._type;
_index = that._index;
return(true);
}
///
public override bool MoveTo(XPathNavigator other)
{
var that = other as XPathObjectNavigator;
if (that == null)
{
return(false);
}
_context = that._context;
_root = that._root;
_node = that._node;
_type = that._type;
_index = that._index;
return(true);
}
///
internal XPathObjectNavigator(object root, XPathObjectContext context)
{
if (root == null)
{
throw new ArgumentNullException("root");
}
_context = context ?? throw new ArgumentNullException("context");
_root = new XPathObjectNode(context, root);
//???? fails without it
var type = root.GetType();
var name = type.FullName;
if (type.IsGenericType)
{
name = name.Remove(name.IndexOf('`'));
}
_root.AddSpecialName("type", name);
}
///
public override bool MoveTo(XPathNavigator other)
{
var that = other as XPathObjectNavigator;
if (that == null)
return false;
_context = that._context;
_root = that._root;
_node = that._node;
_type = that._type;
_index = that._index;
return true;
}
IEnumerable <FarFile> DoInvokeXPath(ProgressBox progress)
{
// object context
var objectContext = new XPathObjectContext()
{
Filter = this.Filter,
IncrementDirectoryCount = delegate(int count)
{
ProcessedDirectoryCount += count;
if (progress == null)
{
return;
}
var directoryPerSecond = ProcessedDirectoryCount / progress.ElapsedFromStart.TotalSeconds;
progress.Activity = string.Format(null, Res.SearchActivityDeep,
FoundFileCount, ProcessedDirectoryCount, directoryPerSecond);
progress.ShowProgress();
},
Stopping = delegate
{
return(Stopping || progress != null && UIUserStop());
}
};
var xsltContext = new XPathXsltContext(objectContext.NameTable);
if (_XVariables != null)
{
foreach (var kv in _XVariables)
{
xsltContext.AddVariable(kv.Key, kv.Value);
}
}
// XPath text
string xpath;
if (string.IsNullOrEmpty(XFile))
{
xpath = XPath;
}
else
{
var input = XPathInput.ParseFile(XFile);
xpath = input.Expression;
foreach (var kv in input.Variables)
{
xsltContext.AddVariable(kv.Key, kv.Value);
}
}
var expression = XPathExpression.Compile(xpath);
if (expression.ReturnType != XPathResultType.NodeSet)
{
throw new InvalidOperationException("Invalid expression return type.");
}
expression.SetContext(xsltContext);
++ProcessedDirectoryCount;
var args = new GetFilesEventArgs(ExplorerModes.Find);
foreach (var file in _RootExplorer.GetFiles(args))
{
// stop?
if (Stopping || progress != null && UIUserStop()) //???? progress to navigator
{
break;
}
// filter out a leaf
if (Filter != null && !file.IsDirectory && !Filter(_RootExplorer, file))
{
continue;
}
var xfile = new SuperFile(_RootExplorer, file);
var navigator = new XPathObjectNavigator(xfile, objectContext);
var iterator = navigator.Select(expression);
while (iterator.MoveNext())
{
// stop?
if (Stopping || progress != null && UIUserStop()) //???? progress to navigator
{
break;
}
// found file or directory, ignore anything else
if (!(iterator.Current.UnderlyingObject is SuperFile currentFile))
{
continue;
}
// filter out directory, it is already done for files
if (Filter != null && currentFile.IsDirectory && (!Directory || !Filter(currentFile.Explorer, currentFile.File)))
{
continue;
}
// add
yield return(currentFile);
++FoundFileCount;
}
}
}
IEnumerable<FarFile> DoInvokeXPath(ProgressBox progress)
{
// object context
var objectContext = new XPathObjectContext()
{
Filter = this.Filter,
IncrementDirectoryCount = delegate(int count)
{
ProcessedDirectoryCount += count;
if (progress == null)
return;
var directoryPerSecond = ProcessedDirectoryCount / progress.ElapsedFromStart.TotalSeconds;
progress.Activity = string.Format(null, Res.SearchActivityDeep,
FoundFileCount, ProcessedDirectoryCount, directoryPerSecond);
progress.ShowProgress();
},
Stopping = delegate
{
return Stopping || progress != null && UIUserStop();
}
};
var xsltContext = new XPathXsltContext(objectContext.NameTable);
if (_XVariables != null)
{
foreach (var kv in _XVariables)
xsltContext.AddVariable(kv.Key, kv.Value);
}
// XPath text
string xpath;
if (string.IsNullOrEmpty(XFile))
{
xpath = XPath;
}
else
{
var input = XPathInput.ParseFile(XFile);
xpath = input.Expression;
foreach (var kv in input.Variables)
xsltContext.AddVariable(kv.Key, kv.Value);
}
var expression = XPathExpression.Compile(xpath);
if (expression.ReturnType != XPathResultType.NodeSet)
throw new InvalidOperationException("Invalid expression return type.");
expression.SetContext(xsltContext);
++ProcessedDirectoryCount;
var args = new GetFilesEventArgs(ExplorerModes.Find);
foreach (var file in _RootExplorer.GetFiles(args))
{
// stop?
if (Stopping || progress != null && UIUserStop()) //???? progress to navigator
break;
// filter out a leaf
if (Filter != null && !file.IsDirectory && !Filter(_RootExplorer, file))
continue;
var xfile = new SuperFile(_RootExplorer, file);
var navigator = new XPathObjectNavigator(xfile, objectContext);
var iterator = navigator.Select(expression);
while (iterator.MoveNext())
{
// stop?
if (Stopping || progress != null && UIUserStop()) //???? progress to navigator
break;
// found file or directory, ignore anything else
var currentFile = iterator.Current.UnderlyingObject as SuperFile;
if (currentFile == null)
continue;
// filter out directory, it is already done for files
if (Filter != null && currentFile.IsDirectory && (!Directory || !Filter(currentFile.Explorer, currentFile.File)))
continue;
// add
yield return currentFile;
++FoundFileCount;
}
}
}
public XPathObjectNode(XPathObjectContext context, object target) : this(context, target, null, null, null, -1)
{
}
