/// <summary>
/// Parse the data from specified Uri into a document.
/// </summary>
/// <param name="document">The document instance to store the gained data in.</param>
/// <param name="xmlTextReader">XmlTextReader instance</param>
protected virtual void Parse(OpmlDocument document, System.Xml.XmlReader xmlTextReader)
{
try
{
System.Diagnostics.Debug.Assert(xmlTextReader != null);
//
xmlTextReader.MoveToContent();
if (xmlTextReader.Name != "opml")
{
throw new FormatException(xmlTextReader.BaseURI + " is no valid Opml File");
}
// read the stream forward while not end of file
int currentDepth = -1;
System.Collections.Hashtable nodeLevels = new System.Collections.Hashtable();
//
while (!xmlTextReader.EOF)
{
// process head
if (xmlTextReader.Name == "head" && xmlTextReader.NodeType == XmlNodeType.Element)
{
document.Head = new OpmlHead(xmlTextReader);
}
// process outline and child outlines
else if (xmlTextReader.Name == "outline" && xmlTextReader.NodeType == XmlNodeType.Element)
{
currentDepth = xmlTextReader.Depth;
//
OpmlOutline o = OnCreateOutline(xmlTextReader);
if (currentDepth == 2)
{
document.Body.Items.Add(o);
// new node
nodeLevels.Clear();
}
else
{
((OpmlOutline)nodeLevels[xmlTextReader.Depth - 1]).Items.Add(o);
}
nodeLevels[xmlTextReader.Depth] = o;
}
else
{
xmlTextReader.Read();
xmlTextReader.MoveToContent();
}
}
}
finally
{
if (xmlTextReader != null)
{
xmlTextReader.Close();
}
}
}
private void DetachItem(OpmlOutline item)
{
System.Diagnostics.Debug.Assert(item != null);
//
if (_body != null)
{
item.PropertyChanged -= new System.ComponentModel.PropertyChangedEventHandler(_body.OnSubItemPropertyChanged);
}
else
{
item.PropertyChanged -= new System.ComponentModel.PropertyChangedEventHandler(_outline.OnSubItemPropertyChanged);
}
item.SetDocument(null);
item.SetParent(null);
//
SetDirtyState();
}
/// <summary>Determines whether the OpmlOutlineCollection contains a specific value.</summary>
public bool Contains(OpmlOutline value)
{
return(base.List.Contains(value as object));
}
/// <summary>Inserts an IOpmlOutline to the OpmlOutlineCollection at the specified position.</summary>
public void Insert(int index, OpmlOutline value)
{
base.List.Insert(index, value as object);
}
/// <summary>Removes an item to the OpmlOutlineCollection.</summary>
public void Remove(OpmlOutline value)
{
base.List.Remove(value as object);
}
/// <summary>Adds an item to the IOpmlOutlineCollection.</summary>
public int Add(OpmlOutline value)
{
return(base.List.Add(value as object));
}
/// <summary>Initializes a new instance of OpmlOutlineCollection</summary>
public OpmlOutlineCollection(OpmlOutline outline)
{
_outline = outline;
}
/// <summary>Sets the outline that this outline is assigned to.</summary>
internal void SetParent(OpmlOutline value)
{
this._outline = value;
}
