/// <summary>Adds the outline.</summary>
/// <param name="tagWorker">the tag worker</param>
/// <param name="element">the element</param>
/// <param name="context">the processor context</param>
/// <returns>the outline handler</returns>
internal virtual OutlineHandler AddOutline(ITagWorker tagWorker, IElementNode element, ProcessorContext context
)
{
String tagName = element.Name();
if (null != tagWorker && HasTagPriorityMapping(tagName) && context.GetPdfDocument() != null)
{
int level = (int)GetTagPriorityMapping(tagName);
if (null == currentOutline)
{
currentOutline = context.GetPdfDocument().GetOutlines(false);
}
PdfOutline parent = currentOutline;
while (!levelsInProcess.IsEmpty() && level <= levelsInProcess.JGetFirst())
{
parent = parent.GetParent();
levelsInProcess.JRemoveFirst();
}
String content = ((JsoupElementNode)element).Text();
if (String.IsNullOrEmpty(content))
{
content = GetUniqueID(tagName);
}
PdfOutline outline = parent.AddOutline(content);
String destination = DESTINATION_PREFIX + GetUniqueID(DESTINATION_PREFIX);
outline.AddDestination(PdfDestination.MakeDestination(new PdfString(destination)));
destinationsInProcess.AddFirst(destination);
levelsInProcess.AddFirst(level);
currentOutline = outline;
}
return(this);
}
/// <summary>Adds the outline and the destination.</summary>
/// <remarks>
/// Adds the outline and the destination.
/// Adds the outline and its corresponding the destination to the PDF document
/// if the priority mapping is set for the element.
/// </remarks>
/// <param name="tagWorker">the tag worker</param>
/// <param name="element">the element</param>
/// <param name="context">the processor context</param>
/// <returns>the outline handler</returns>
internal virtual OutlineHandler AddOutlineAndDestToDocument(ITagWorker tagWorker, IElementNode element, ProcessorContext
context)
{
String tagName = element.Name();
if (null != tagWorker && HasTagPriorityMapping(tagName) && context.GetPdfDocument() != null)
{
int level = (int)GetTagPriorityMapping(tagName);
if (null == currentOutline)
{
currentOutline = context.GetPdfDocument().GetOutlines(false);
}
PdfOutline parent = currentOutline;
while (!levelsInProcess.IsEmpty() && level <= levelsInProcess.JGetFirst())
{
parent = parent.GetParent();
levelsInProcess.JRemoveFirst();
}
PdfOutline outline = parent.AddOutline(GenerateUniqueOutlineName(element));
String destination = GenerateUniqueDestinationName(element);
outline.AddDestination(PdfDestination.MakeDestination(new PdfString(destination)));
destinationsInProcess.AddFirst(destination);
levelsInProcess.AddFirst(level);
currentOutline = outline;
}
return(this);
}
/// <summary>the next element in the entire hierarchy</summary>
/// <param name="outline"></param>
/// <exception cref="iText.Kernel.PdfException"/>
private PdfOutline GetAbsoluteTreeNextOutline(PdfOutline outline)
{
PdfObject nextPdfObject = outline.GetContent().Get(PdfName.Next);
PdfOutline nextPdfOutline = null;
if (outline.GetParent() != null && nextPdfObject != null)
{
foreach (PdfOutline pdfOutline in outline.GetParent().GetAllChildren())
{
if (pdfOutline.GetContent().GetIndirectReference().Equals(nextPdfObject.GetIndirectReference()))
{
nextPdfOutline = pdfOutline;
break;
}
}
}
if (nextPdfOutline == null && outline.GetParent() != null)
{
nextPdfOutline = GetAbsoluteTreeNextOutline(outline.GetParent());
}
return(nextPdfOutline);
}
