/**
* Displays a heading for the management pages.
*
* @param string $heading The heading to display
* @param string|null $viewmode The current view mode if there are options.
* @param int|null $categoryid The currently selected category if there is one.
* @return string
*/
public function management_heading($heading, $viewmode = null, $categoryid = null)
{
$html = html_writer::start_div('coursecat-management-header clearfix');
if (!empty($heading)) {
$html .= $this->heading($heading);
}
if ($viewmode !== null) {
if ($viewmode === 'courses') {
$categories = coursecat::make_categories_list(array('moodle/category:manage', 'moodle/course:create'));
$nothing = false;
if ($categoryid === null) {
$nothing = array('' => get_string('selectacategory'));
$categoryid = '';
}
$select = new single_select($this->page->url, 'categoryid', $categories, $categoryid, $nothing);
$html .= $this->render($select);
}
$html .= $this->view_mode_selector(\core_course\management\helper::get_management_viewmodes(), $viewmode);
}
$html .= html_writer::end_div();
return $html;
}
