function definition() {

global $CFG, $DB, $OUTPUT;

$mform =& $this->_form;

// Name.

$mform->addElement('text', 'name', get_string('name'));

$mform->setType('name', PARAM_TEXT);

$mform->addRule('name', null, 'required', null, 'client');

$mform->addRule('name', get_string('maximumchars', '', 255), 'maxlength', 255, 'client');

// H5P

// TODO: Use $course->maxbytes ?

$mform->addElement('filepicker', 'h5pfile', get_string('h5pfile', 'hvp'), null, array('maxbytes' => $CFG->maxbytes, 'accepted_types' => '*'));

$mform->addRule('h5pfile', null, 'required', null, 'client');

$this->standard_coursemodule_elements();

$this->add_action_buttons();

}

function data_preprocessing(&$default_values) {

// Aaah.. we meet again h5pfile!

$draftitemid = file_get_submitted_draft_itemid('h5pfile');

file_prepare_draft_area($draftitemid, $this->context->id, 'mod_hvp', 'package', 0);

$default_values['h5pfile'] = $draftitemid;

}

function validation($data, $files) {

global $CFG;

$errors = parent::validation($data, $files);

if (empty($data['h5pfile'])) {

$errors['h5pfile'] = get_string('required');

return $errors;

}

$files = $this->get_draft_files('h5pfile');

if (count($files) < 1) {

$errors['h5pfile'] = get_string('required');

return $errors;

}

$file = reset($files);

$interface = hvp_get_instance('interface');

$path = $CFG->dirroot . '/mod/hvp/files/tmp/' . uniqid('hvp-');

$interface->getUploadedH5pFolderPath($path);

$path .= '.h5p';

$interface->getUploadedH5pPath($path);

$file->copy_content_to($path);

$h5pValidator = hvp_get_instance('validator');

if (! $h5pValidator->isValidPackage()) {

$errors['h5pfile'] = get_string('noth5pfile', 'hvp');

}

return $errors;

}

function get_data() {

$data = parent::get_data();

if (!$data) {

return false;

}

return $data;

}