/**
* Check the ghostscript path is valid to see if the plugin should be enabled.
* @return bool
*/
public function is_enabled()
{
global $CFG;
static $gspathok = null;
if (is_null($gspathok)) {
require_once $CFG->dirroot . '/mod/assign/feedback/pdf/mypdflib.php';
$result = AssignPDFLib::test_gs_path(false);
$gspathok = $result->status == AssignPDFLib::GSPATH_OK;
if (!$gspathok && $this->is_visible()) {
// Setting 'gspath' is invalid, so the plugin should be globally disabled.
set_config('disabled', true, $this->get_subtype() . '_' . $this->get_type());
}
}
if (!parent::is_enabled()) {
return false;
}
return $gspathok;
}
/**
* If blind marking is enabled then disable this plugin (it shows names)
*
* @return bool
*/
public function is_enabled() {
if ($this->assignment->has_instance() && $this->assignment->is_blind_marking()) {
return false;
}
return parent::is_enabled();
}
/**
* Automatically hide the setting for the submission plugin.
*
* @return bool
*/
public function is_configurable()
{
if ($this->isonfrontpage() === true) {
return false;
}
return parent::is_configurable();
}