/**
* Renders header of the column
*
* @return string
*/
public function renderHeader()
{
if ($this->getColumn()->getHeader()) {
return parent::renderHeader();
}
$checked = '';
if ($filter = $this->getColumn()->getFilter()) {
$checked = $filter->getValue() ? ' checked="checked"' : '';
}
$disabled = '';
if ($this->getColumn()->getDisabled()) {
$disabled = ' disabled="disabled"';
}
$html = '<th class="data-grid-th data-grid-actions-cell"><input type="checkbox" ';
$html .= 'name="' . $this->getColumn()->getFieldName() . '" ';
$html .= 'onclick="' . $this->getColumn()->getGrid()->getJsObjectName() . '.checkCheckboxes(this)" ';
$html .= 'class="admin__control-checkbox"' . $checked . $disabled . ' ';
$html .= 'title="' . __('Select All') . '"/><label></label></th>';
return $html;
}
