private Collection<Selector> replaceFirstAppender(
Selector selector, List<Selector> previousSelectors) {
if (selector.getHead().isAppender()) {
NestedSelectorAppender appender = (NestedSelectorAppender) selector.getHead();
Selector reminder = chopOffHead(selector);
return joinAll(
previousSelectors,
reminder,
appender.getLeadingCombinator(),
isDirectlyAfterPreviousPart(reminder));
}
// appender somewhere in the middle
NestedSelectorAppender appender = selector.findFirstAppender();
if (appender == null)
throw new BugHappened("This is very weird error and should not happen.", selector);
Selector afterAppender = splitOn(selector, appender);
List<Selector> partialResults =
joinAll(
selector,
previousSelectors,
appender.getLeadingCombinator(),
appender.isDirectlyAfter());
// FIXME (now) last parameter should be nide and repats cold in 146
return joinAll(partialResults, afterAppender, null, isDirectlyAfterPreviousPart(afterAppender));
}
private Selector splitOn(Selector selector, NestedSelectorAppender appender) {
List<SelectorPart> parts = selector.getParts();
int indexOfAppender = parts.indexOf(appender);
List<SelectorPart> appenderAndAfter = parts.subList(indexOfAppender, parts.size());
// remove appender
appenderAndAfter.remove(0);
appender.setParent(null);
// create selector with after appender parts
Selector result = null;
if (!appenderAndAfter.isEmpty()) {
result =
new Selector(
selector.getUnderlyingStructure(), new ArrayList<SelectorPart>(appenderAndAfter));
result.configureParentToAllChilds();
}
// leave only before appender parts in original selector
appenderAndAfter.clear();
return result;
}