Method closest

src/main/java/org/htmlunit/html/DomNode.java:2213–2240

@param selectorString the selector to test @return the selected DomElement or null.

(final String selectorString)

     * @return the selected {@link DomElement} or null.
     */
    public DomElement closest(final String selectorString) {
        try {
            final WebClient webClient = getPage().getWebClient();
            final SelectorList selectorList = getSelectorList(selectorString, webClient);

            DomNode current = this;
            if (selectorList != null) {
                do {
                    for (final Selector selector : selectorList) {
                        final DomElement elem = (DomElement) current;
                        if (CssStyleSheet.selects(webClient.getBrowserVersion(), selector, elem, null, true, true)) {
                            return elem;
                        }
                    }

                    do {
                        current = current.getParentNode();
                    }
                    while (current != null && !(current instanceof DomElement));
                }
                while (current != null);
            }
            return null;
        }
        catch (final IOException e) {
            throw new CSSException("Error parsing CSS selectors from '" + selectorString + "': " + e.getMessage(), e);
        }
    }

    /**
     * An unmodifiable empty {@link NamedNodeMap} implementation.