/**
* @param $matches array
* @return string
*/
private function headingTransformCallbackXHTML($matches)
{
wfProfileIn(__METHOD__);
if (isset($matches[0])) {
preg_match('/id="([^"]*)"/', $matches[0], $headlineMatches);
}
$headlineId = isset($headlineMatches[1]) ? $headlineMatches[1] : '';
static $headings = 0;
$show = self::$messages['mobile-frontend-show-button'];
$hide = self::$messages['mobile-frontend-hide-button'];
$backToTop = self::$messages['mobile-frontend-back-to-top-of-section'];
++$headings;
// Back to top link
$base = Html::openElement('div', array('id' => 'anchor_' . intval($headings - 1), 'class' => 'section_anchors')) . Html::rawElement('a', array('href' => '#section_' . intval($headings - 1), 'class' => 'back_to_top'), '↑' . $backToTop) . Html::closeElement('div');
// generate the HTML we are going to inject
$buttons = Html::element('button', array('class' => 'section_heading show', 'section_id' => $headings), $show) . Html::element('button', array('class' => 'section_heading hide', 'section_id' => $headings), $hide);
if (self::$device['supports_javascript']) {
$h2OnClick = 'javascript:wm_toggle_section(' . $headings . ');';
$base .= Html::openElement('h2', array('class' => 'section_heading', 'id' => 'section_' . $headings, 'onclick' => $h2OnClick));
} else {
$base .= Html::openElement('h2', array('class' => 'section_heading', 'id' => 'section_' . $headings));
}
$base .= $buttons . Html::rawElement('span', array('id' => $headlineId), $matches[2]) . Html::closeElement('h2') . Html::openElement('div', array('class' => 'content_block', 'id' => 'content_' . $headings));
if ($headings > 1) {
// Close it up here
$base = Html::closeElement('div') . $base;
}
self::$headings = $headings;
wfProfileOut(__METHOD__);
return $base;
}