private bool HandleElement()
{
HtmlEditorDocument document = HtmlEditorDocument.TryFromTextView(_view);
if (document == null)
{
return(false);
}
var tree = document.HtmlEditorTree;
int position = _view.Caret.Position.BufferPosition.Position;
ElementNode tag = null;
AttributeNode attr = null;
tree.GetPositionElement(position, out tag, out attr);
if (tag != null && (tag.EndTag != null || tag.IsSelfClosing()))
{
int start = tag.Start;
int end = tag.End;
Update(start, end);
return(true);
}
return(false);
}
protected override bool Execute(FormattingCommandId commandId, uint nCmdexecopt, IntPtr pvaIn, IntPtr pvaOut)
{
HtmlEditorDocument document = HtmlEditorDocument.TryFromTextView(_view);
if (document == null)
{
return(false);
}
var tree = document.HtmlEditorTree;
int start = _view.Selection.Start.Position.Position;
int end = _view.Selection.End.Position.Position;
ElementNode tag = null;
AttributeNode attr = null;
tree.GetPositionElement(start, out tag, out attr);
if (tag == null)
{
return(false);
}
if (attr != null)
{
SelectAttribute(start, end, attr, tag);
}
else if (tag.EndTag != null && tag.StartTag.End == start && tag.EndTag.Start == end)
{
Select(tag.Start, tag.OuterRange.Length);
}
else if (tag.Children.Count > 1 && tag.Children[0].Start == start && tag.Children.Last().End == end)
{
Select(tag.InnerRange.Start, tag.InnerRange.Length);
}
else if (tag.EndTag != null && tag.Children.Count > 1 && tag.StartTag.Start < start && tag.EndTag.End > end)
{
Select(tag.Children[0].Start, tag.Children.Last().End - tag.Children[0].Start);
}
else if (tag.EndTag != null && tag.StartTag.Start < start && tag.EndTag.End > end)
{
Select(tag.InnerRange.Start, tag.InnerRange.Length);
}
else if (tag.IsSelfClosing() && tag.Start < start && tag.End > end)
{
Select(tag.Start, tag.OuterRange.Length);
}
else if (tag.Parent != null)
{
Select(tag.Parent.Start, tag.Parent.OuterRange.Length);
}
return(true);
}