protected function _initFrame()
{
if (!$this->helper->isActiveEngine()) {
return parent::_initFrame();
}
if (!$this->isFrameInitialized()) {
$start = 0;
$end = 0;
$lastPageNum = $this->getLastPageNum();
$currentPage = $this->getCurrentPage();
if ($lastPageNum <= $this->getFrameLength()) {
$start = 1;
$end = $lastPageNum;
} else {
$half = ceil($this->getFrameLength() / 2);
if ($currentPage >= $half && $currentPage <= $lastPageNum - $half) {
$start = $currentPage - $half + 1;
$end = $start + $this->getFrameLength() - 1;
} elseif ($currentPage < $half) {
$start = 1;
$end = $this->getFrameLength();
} elseif ($currentPage > $lastPageNum - $half) {
$end = $lastPageNum;
$start = $end - $this->getFrameLength() + 1;
}
}
$this->_frameStart = $start;
$this->_frameEnd = $end;
$this->_setFrameInitialized(true);
}
return $this;
}
