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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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use mod_quiz\form\preflight_check_form;
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use mod_quiz\local\access_rule_base;
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use mod_quiz\quiz_settings;
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/**
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* A rule representing the time limit.
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*
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* It does not actually restrict access, but we use this
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* class to encapsulate some of the relevant code.
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*
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* @package quizaccess_timelimit
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* @copyright 2009 Tim Hunt
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class quizaccess_timelimit extends access_rule_base {
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public static function make(quiz_settings $quizobj, $timenow, $canignoretimelimits) {
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if (empty($quizobj->get_quiz()->timelimit) || $canignoretimelimits) {
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return null;
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}
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return new self($quizobj, $timenow);
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}
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public function description() {
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return get_string('quiztimelimit', 'quizaccess_timelimit',
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format_time($this->quiz->timelimit));
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}
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public function end_time($attempt) {
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$timedue = $attempt->timestart + $this->quiz->timelimit;
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if ($this->quiz->timeclose) {
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$timedue = min($timedue, $this->quiz->timeclose);
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}
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return $timedue;
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}
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public function time_left_display($attempt, $timenow) {
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// If this is a teacher preview after the time limit expires, don't show the time_left
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$endtime = $this->end_time($attempt);
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if ($attempt->preview && $timenow > $endtime) {
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return false;
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}
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return $endtime - $timenow;
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}
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public function is_preflight_check_required($attemptid) {
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// Warning only required if the attempt is not already started.
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return $attemptid === null;
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}
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public function add_preflight_check_form_fields(preflight_check_form $quizform,
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MoodleQuickForm $mform, $attemptid) {
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$mform->addElement('header', 'honestycheckheader',
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get_string('confirmstartheader', 'quizaccess_timelimit'));
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$mform->addElement('static', 'honestycheckmessage', '',
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get_string('confirmstart', 'quizaccess_timelimit', format_time($this->quiz->timelimit)));
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}
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}
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