/// <summary>
/// Returns a literal object for the text between HtmlStart (the last position of the end of a
/// tag) and the current position. If !AllowLiterals then it's wrapped in a span.
/// </summary>
///
/// <param name="factory">
/// The HTML factory to operate against
/// </param>
/// <param name="literal">
/// [out] The literal.
/// </param>
///
/// <returns>
/// true if it succeeds, false if it fails.
/// </returns>
public bool TryGetLiteral(HtmlElementFactory factory, out IDomObject literal)
{
if (Pos <= HtmlStart)
{
literal = null;
return(false);
}
// There's plain text -return it as a literal.
DomText lit;
switch (InsertionMode)
{
case InsertionMode.Invalid:
lit = new DomInvalidElement();
break;
case InsertionMode.Text:
InsertionMode = InsertionMode.Default;
lit = new DomInnerText();
break;
default:
lit = new DomText();
break;
}
literal = lit;
if (factory.IsBound)
{
lit.SetTextIndex(factory.Document, factory.Document.DocumentIndex.TokenizeString(HtmlStart, Pos - HtmlStart));
}
else
{
string text = factory.Html.SubstringBetween(HtmlStart, Pos);
literal.NodeValue = HtmlData.HtmlDecode(text);
}
if (WrapLiterals)
{
DomElement wrapper = DomElement.Create("span");
wrapper.ChildNodesInternal.AddAlways(literal);
literal = wrapper;
}
if (Parent != null)
{
((DomElement)Parent.Element).ChildNodesInternal.AddAlways(literal);
Reset();
return(false);
}
else
{
TokenizerState = TokenizerState.Finished;
return(true);
}
}
/// <summary>
/// Close out this element. This method will return true if something can be yielded; this this
/// means it's got a parent at the top of the heirarchy. Otherwise it's just closed but false is
/// returned.
/// </summary>
///
/// <param name="factory">
/// The HTML factory to operate against.
/// </param>
///
/// <returns>
/// An enumerator that allows foreach to be used to process close element in this collection.
/// </returns>
public IEnumerable <IDomObject> CloseElement(HtmlElementFactory factory)
{
IDomObject element = null;
if (TryGetLiteral(factory, out element))
{
yield return(element);
}
if (Parent != null)
{
if (Parent.Parent == null)
{
yield return(Parent.Element);
}
Parent.Reset(Pos);
TokenizerState = TokenizerState.Finished;
}
}
/// <summary>
/// Close out this element. This method will return true if something can be yielded; this this
/// means it's got a parent at the top of the heirarchy. Otherwise it's just closed but false is
/// returned.
/// </summary>
///
/// <param name="factory">
/// The HTML factory to operate against.
/// </param>
///
/// <returns>
/// An enumerator that allows foreach to be used to process close element in this collection.
/// </returns>
public IEnumerable<IDomObject> CloseElement(HtmlElementFactory factory)
{
IDomObject element = null;
if (TryGetLiteral(factory, out element))
{
yield return element;
}
if (Parent != null)
{
if (Parent.Parent == null)
{
yield return Parent.Element;
}
Parent.Reset(Pos);
TokenizerState = TokenizerState.Finished;
}
}
/// <summary>
/// Returns a literal object for the text between HtmlStart (the last position of the end of a
/// tag) and the current position. If !AllowLiterals then it's wrapped in a span.
/// </summary>
///
/// <param name="factory">
/// The HTML factory to operate against
/// </param>
/// <param name="literal">
/// [out] The literal.
/// </param>
///
/// <returns>
/// true if it succeeds, false if it fails.
/// </returns>
public bool TryGetLiteral(HtmlElementFactory factory, out IDomObject literal)
{
if (Pos <= HtmlStart)
{
literal = null;
return false;
}
// There's plain text -return it as a literal.
DomText lit;
switch(InsertionMode) {
case InsertionMode.Invalid:
lit = new DomInvalidElement();
break;
case InsertionMode.Text:
InsertionMode =InsertionMode.Default;
lit = new DomInnerText();
break;
default:
lit = new DomText();
break;
}
literal = lit;
if (factory.IsBound)
{
lit.SetTextIndex(factory.Document, factory.Document.DocumentIndex.TokenizeString(HtmlStart, Pos - HtmlStart));
}
else
{
string text = factory.Html.SubstringBetween(HtmlStart, Pos);
literal.NodeValue = HtmlData.HtmlDecode(text);
}
if (WrapLiterals)
{
DomElement wrapper = DomElement.Create("span");
wrapper.ChildNodesInternal.AddAlways(literal);
literal = wrapper;
}
if (Parent != null)
{
((DomElement)Parent.Element).ChildNodesInternal.AddAlways(literal);
Reset();
return false;
}
else
{
TokenizerState = TokenizerState.Finished;
return true;
}
}
