protected function _toHtml()
{
$html = parent::_toHtml();
$js = '';
if ($this->getRequest()->getParam('category_change')) {
$checkedString = implode(',', array_intersect($this->getCollectionIds(), $this->selectedIds));
$js .= <<<HTML
<script type="text/javascript">
{$this->getMassactionBlock()->getJsObjectName()}.checkedString = '{$checkedString}';
{$this->getMassactionBlock()->getJsObjectName()}.initCheckboxes();
{$this->getMassactionBlock()->getJsObjectName()}.checkCheckboxes();
{$this->getMassactionBlock()->getJsObjectName()}.updateCount();
{$this->getMassactionBlock()->getJsObjectName()}.initialCheckedString =
{$this->getMassactionBlock()->getJsObjectName()}.checkedString;
</script>
HTML;
}
if ($this->getRequest()->isXmlHttpRequest()) {
return $html . $js;
}
return <<<HTML
<div class="columns">
<div class="side-col">{$this->getTreeBlock()->toHtml()}</div>
<div class="main-col">{$html}</div>
</div>
{$js}
HTML;
}
