/**
* 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;
}
}
/**
* Process next header markup fragment.
*
* @param associatedMarkupStream
* @return index or -1 when done
*/
private int nextHeaderMarkup(final MarkupStream associatedMarkupStream) {
// No associated markup => no header section
if (associatedMarkupStream == null) {
return -1;
}
// Scan the markup for <wicket:head>.
MarkupElement elem = associatedMarkupStream.get();
while (elem != null) {
if (elem instanceof WicketTag) {
WicketTag tag = (WicketTag) elem;
if (tag.isOpen() && tag.isHeadTag()) {
if (noMoreWicketHeadTagsAllowed == true) {
throw new MarkupException(
"<wicket:head> tags are only allowed before <body>, </head>, <wicket:panel> etc. tag");
}
return associatedMarkupStream.getCurrentIndex();
}
// wicket:head must be before border, panel or extend
// @TODO why is that? Why can't it be anywhere? (except inside wicket:fragment)
else if (tag.isOpen() && (tag.isPanelTag() || tag.isBorderTag() || tag.isExtendTag())) {
noMoreWicketHeadTagsAllowed = true;
}
} else if (elem instanceof ComponentTag) {
ComponentTag tag = (ComponentTag) elem;
// wicket:head must be before </head>
// @TODO why??
if (tag.isClose() && TagUtils.isHeadTag(tag)) {
noMoreWicketHeadTagsAllowed = true;
}
// wicket:head must be before <body>
// @TODO why??
else if (tag.isOpen() && TagUtils.isBodyTag(tag)) {
noMoreWicketHeadTagsAllowed = true;
}
}
elem = associatedMarkupStream.next();
}
// No (more) wicket:head found
return -1;
}
@Override
protected final MarkupElement onComponentTag(ComponentTag tag) throws ParseException {
if (tag.isClose()) {
return tag;
}
final String wicketMessageAttribute = tag.getAttributes().getString(getWicketMessageAttrName());
if ((wicketMessageAttribute != null) && (wicketMessageAttribute.trim().length() > 0)) {
// check if this tag is raw markup
if (tag.getId() == null) {
// if this is a raw tag we need to set the id to something so
// that wicket will not merge this as raw markup and instead
// pass it on to a resolver
tag.setId(WICKET_MESSAGE_CONTAINER_ID);
tag.setAutoComponentTag(true);
tag.setModified(true);
}
tag.addBehavior(new AttributeLocalizer(getWicketMessageAttrName()));
}
return tag;
}
@Override
protected MarkupElement onComponentTag(final ComponentTag tag) throws ParseException {
// We only need ComponentTags
if (tag instanceof WicketTag) {
return tag;
}
// Has wicket:enclosure attribute?
String enclosureAttr = getAttribute(tag, null);
if (enclosureAttr != null) {
if (tag.isOpen()) {
// Make sure 'wicket:id' and 'id' are consistent
String htmlId = tag.getAttribute("id");
if ((tag.getId() != null) && !Strings.isEmpty(htmlId) && !htmlId.equals(tag.getId())) {
throw new ParseException(
"Make sure that 'id' and 'wicket:id' are the same if both are provided. Tag:"
+ tag.toString(),
tag.getPos());
}
// if it doesn't have a wicket-id already, then assign one now.
if (Strings.isEmpty(tag.getId())) {
if (Strings.isEmpty(htmlId)) {
String id =
getWicketNamespace() + "_" + INLINE_ENCLOSURE_ID_PREFIX + getRequestUniqueId();
tag.setId(id);
} else {
tag.setId(htmlId);
}
tag.setAutoComponentTag(true);
tag.setAutoComponentFactory(
new ComponentTag.IAutoComponentFactory() {
@Override
public Component newComponent(MarkupContainer container, ComponentTag tag) {
String attributeName = getInlineEnclosureAttributeName(null);
String childId = tag.getAttribute(attributeName);
return new InlineEnclosure(tag.getId(), childId);
}
});
tag.setModified(true);
}
// Put the enclosure on the stack. The most current one will be on top
if (enclosures == null) {
enclosures = new ArrayDeque<>();
}
enclosures.push(tag);
} else {
throw new ParseException(
"Open-close tags don't make sense for InlineEnclosure. Tag:" + tag.toString(),
tag.getPos());
}
}
// Are we within an enclosure?
else if ((enclosures != null) && (enclosures.size() > 0)) {
// In case the enclosure tag did not provide a child component id, then assign the
// first ComponentTag's id found as the controlling child to the enclosure.
if (tag.isOpen()
&& (tag.getId() != null)
&& !(tag instanceof WicketTag)
&& !tag.isAutoComponentTag()) {
Iterator<ComponentTag> componentTagIterator = enclosures.descendingIterator();
while (componentTagIterator.hasNext()) {
ComponentTag lastEnclosure = componentTagIterator.next();
String attr = getAttribute(lastEnclosure, null);
if (Strings.isEmpty(attr) == true) {
lastEnclosure.getAttributes().put(getInlineEnclosureAttributeName(null), tag.getId());
lastEnclosure.setModified(true);
}
}
} else if (tag.isClose() && tag.closes(enclosures.peek())) {
ComponentTag lastEnclosure = enclosures.pop();
String attr = getAttribute(lastEnclosure, null);
if (Strings.isEmpty(attr) == true) {
throw new ParseException(
"Did not find any child for InlineEnclosure. Tag:" + lastEnclosure.toString(),
tag.getPos());
}
}
}
return tag;
}
/** 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();
}