/**
* Handle tag <head>
*
* @param tag
*/
private void handleHeadTag(ComponentTag tag) {
// we found <head>
if (tag.isOpen()) {
if (foundHead) {
throw new MarkupException(
new MarkupStream(markup),
"Tag <head> is not allowed at this position (do you have multiple <head> tags in your markup?).");
}
foundHead = true;
if (tag.getId() == null) {
tag.setId(HEADER_ID);
tag.setAutoComponentTag(true);
tag.setModified(true);
}
} else if (tag.isClose()) {
if (foundHeaderItemsTag) {
// revert the settings from above
ComponentTag headOpenTag = tag.getOpenTag();
// change the id because it is special. See HtmlHeaderResolver
headOpenTag.setId(HEADER_ID + "-Ignored");
headOpenTag.setAutoComponentTag(false);
headOpenTag.setModified(false);
headOpenTag.setFlag(ComponentTag.RENDER_RAW, true);
}
foundClosingHead = true;
}
}
/** Scans the given markup and extracts balancing tags. */
private void parseMarkup() {
try {
// always remember the latest index (size)
int size = markup.size();
// Loop through tags
MarkupElement elem;
while (null != (elem = getNextTag())) {
if (elem instanceof HtmlSpecialTag) {
elem = new ComponentTag(((HtmlSpecialTag) elem).getXmlTag());
}
if (elem instanceof ComponentTag) {
ComponentTag tag = (ComponentTag) elem;
boolean add = (tag.getId() != null);
if (!add && tag.isClose()) {
add = ((tag.getOpenTag() != null) && (tag.getOpenTag().getId() != null));
}
// Add tag to list?
if (add || /*tag.isModified() ||*/ (markup.size() != size)) {
// Add text from last position to the current tag position
CharSequence text = xmlParser.getInputFromPositionMarker(tag.getPos());
if (text.length() > 0) {
text = handleRawText(text.toString());
// Make sure you add it at the correct location.
// IMarkupFilters might have added elements as well.
markup.addMarkupElement(size, new RawMarkup(text));
}
xmlParser.setPositionMarker();
if (add) {
// Add to the markup unless the tag has been flagged as
// to be removed from the markup. (e.g. <wicket:remove>
if (tag.isIgnore() == false) {
markup.addMarkupElement(tag);
}
}
/*else if (tag.isModified())
{
markup.addMarkupElement(new RawMarkup(tag.toCharSequence()));
}*/
else {
xmlParser.setPositionMarker(tag.getPos());
}
}
// always remember the latest index (size)
size = markup.size();
}
}
} catch (final ParseException ex) {
// Add remaining input string
final CharSequence text = xmlParser.getInputFromPositionMarker(-1);
if (text.length() > 0) {
markup.addMarkupElement(new RawMarkup(text));
}
// markup.getMarkupResourceStream().setEncoding(xmlParser.getEncoding());
markup.getMarkupResourceStream().setDoctype(xmlParser.getDoctype());
final MarkupStream markupStream = new MarkupStream(markup);
markupStream.setCurrentIndex(markup.size() - 1);
throw new MarkupException(markupStream, ex.getMessage(), ex);
}
// Add tail?
CharSequence text = xmlParser.getInputFromPositionMarker(-1);
if (text.length() > 0) {
text = handleRawText(text.toString());
// Make sure you add it at the correct location.
// IMarkupFilters might have added elements as well.
markup.addMarkupElement(new RawMarkup(text));
}
postProcess(markup);
// Make all tags immutable and the list of elements unmodifiable
markup.makeImmutable();
}