mirror of
https://github.com/moodle/moodle.git
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cb1564b1ce
Thanks to Brandon Browning for identifying the problem. It is quite subtle why this typo would have this effect. You need to look at the implementation of the preventDefault method in lib/yui/3.4.1/build/event-base/event-base.js.
261 lines
8.7 KiB
JavaScript
261 lines
8.7 KiB
JavaScript
// 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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/**
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* JavaScript library for the quiz module.
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*
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* @package mod
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* @subpackage quiz
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* @copyright 1999 onwards Martin Dougiamas {@link http://moodle.com}
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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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M.mod_quiz = M.mod_quiz || {};
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M.mod_quiz.init_attempt_form = function(Y) {
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M.core_question_engine.init_form(Y, '#responseform');
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Y.on('submit', M.mod_quiz.timer.stop, '#responseform');
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};
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M.mod_quiz.init_review_form = function(Y) {
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M.core_question_engine.init_form(Y, '.questionflagsaveform');
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Y.on('submit', function(e) { e.halt(); }, '.questionflagsaveform');
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};
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M.mod_quiz.init_comment_popup = function(Y) {
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// Add a close button to the window.
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var closebutton = Y.Node.create('<input type="button" />');
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closebutton.set('value', M.util.get_string('cancel', 'moodle'));
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Y.one('#id_submitbutton').ancestor().append(closebutton);
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Y.on('click', function() { window.close() }, closebutton);
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}
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// Code for updating the countdown timer that is used on timed quizzes.
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M.mod_quiz.timer = {
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// YUI object.
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Y: null,
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// Timestamp at which time runs out, according to the student's computer's clock.
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endtime: 0,
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// This records the id of the timeout that updates the clock periodically,
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// so we can cancel.
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timeoutid: null,
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/**
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* @param Y the YUI object
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* @param timeleft, the time remaining, in seconds.
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*/
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init: function(Y, timeleft) {
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M.mod_quiz.timer.Y = Y;
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M.mod_quiz.timer.endtime = new Date().getTime() + timeleft*1000;
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M.mod_quiz.timer.update();
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Y.one('#quiz-timer').setStyle('display', 'block');
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},
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/**
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* Stop the timer, if it is running.
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*/
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stop: function(e) {
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if (M.mod_quiz.timer.timeoutid) {
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clearTimeout(M.mod_quiz.timer.timeoutid);
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}
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},
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/**
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* Function to convert a number between 0 and 99 to a two-digit string.
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*/
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two_digit: function(num) {
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if (num < 10) {
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return '0' + num;
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} else {
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return num;
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}
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},
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// Function to update the clock with the current time left, and submit the quiz if necessary.
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update: function() {
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var Y = M.mod_quiz.timer.Y;
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var secondsleft = Math.floor((M.mod_quiz.timer.endtime - new Date().getTime())/1000);
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// If time has expired, Set the hidden form field that says time has expired.
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if (secondsleft < 0) {
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M.mod_quiz.timer.stop(null);
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Y.one('#quiz-time-left').setContent(M.str.quiz.timesup);
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var input = Y.one('input[name=timeup]');
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input.set('value', 1);
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input.ancestor('form').submit();
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return;
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}
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// If time has nearly expired, change the colour.
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if (secondsleft < 100) {
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Y.one('#quiz-timer').removeClass('timeleft' + (secondsleft + 2))
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.removeClass('timeleft' + (secondsleft + 1))
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.addClass('timeleft' + secondsleft);
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}
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// Update the time display.
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var hours = Math.floor(secondsleft/3600);
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secondsleft -= hours*3600;
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var minutes = Math.floor(secondsleft/60);
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secondsleft -= minutes*60;
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var seconds = secondsleft;
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Y.one('#quiz-time-left').setContent(hours + ':' +
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M.mod_quiz.timer.two_digit(minutes) + ':' +
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M.mod_quiz.timer.two_digit(seconds));
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// Arrange for this method to be called again soon.
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M.mod_quiz.timer.timeoutid = setTimeout(M.mod_quiz.timer.update, 100);
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}
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};
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M.mod_quiz.nav = M.mod_quiz.nav || {};
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M.mod_quiz.nav.update_flag_state = function(attemptid, questionid, newstate) {
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var Y = M.mod_quiz.nav.Y;
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var navlink = Y.one('#quiznavbutton' + questionid);
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navlink.removeClass('flagged');
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if (newstate == 1) {
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navlink.addClass('flagged');
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navlink.one('.accesshide .flagstate').setContent(M.str.question.flagged);
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} else {
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navlink.one('.accesshide .flagstate').setContent('');
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}
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};
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M.mod_quiz.nav.init = function(Y) {
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M.mod_quiz.nav.Y = Y;
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Y.all('#quiznojswarning').remove();
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var form = Y.one('#responseform');
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if (form) {
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Y.delegate('click', function(e) {
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if (this.hasClass('thispage')) {
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return;
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}
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e.preventDefault();
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var pageidmatch = this.get('href').match(/page=(\d+)/);
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var pageno;
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if (pageidmatch) {
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pageno = pageidmatch[1];
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} else {
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pageno = 0;
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}
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Y.one('#followingpage').set('value', pageno);
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var questionidmatch = this.get('href').match(/#q(\d+)/);
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if (questionidmatch) {
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form.set('action', form.get('action') + '#q' + questionidmatch[1]);
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}
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form.submit();
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}, document.body, '.qnbutton');
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}
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if (Y.one('a.endtestlink')) {
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Y.on('click', function(e) {
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e.preventDefault();
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Y.one('#followingpage').set('value', -1);
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Y.one('#responseform').submit();
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}, 'a.endtestlink');
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}
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if (M.core_question_flags) {
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M.core_question_flags.add_listener(M.mod_quiz.nav.update_flag_state);
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}
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};
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M.mod_quiz.secure_window = {
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init: function(Y) {
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if (window.location.href.substring(0, 4) == 'file') {
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window.location = 'about:blank';
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}
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Y.delegate('contextmenu', M.mod_quiz.secure_window.prevent, document.body, '*');
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Y.delegate('mousedown', M.mod_quiz.secure_window.prevent_mouse, document.body, '*');
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Y.delegate('mouseup', M.mod_quiz.secure_window.prevent_mouse, document.body, '*');
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Y.delegate('dragstart', M.mod_quiz.secure_window.prevent, document.body, '*');
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Y.delegate('selectstart', M.mod_quiz.secure_window.prevent, document.body, '*');
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M.mod_quiz.secure_window.clear_status;
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Y.on('beforeprint', function() {
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Y.one(document.body).setStyle('display', 'none');
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}, window);
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Y.on('afterprint', function() {
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Y.one(document.body).setStyle('display', 'block');
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}, window);
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Y.on('key', M.mod_quiz.secure_window.prevent, '*', 'press:67,86,88+ctrl');
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Y.on('key', M.mod_quiz.secure_window.prevent, '*', 'up:67,86,88+ctrl');
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Y.on('key', M.mod_quiz.secure_window.prevent, '*', 'down:67,86,88+ctrl');
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Y.on('key', M.mod_quiz.secure_window.prevent, '*', 'press:67,86,88+meta');
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Y.on('key', M.mod_quiz.secure_window.prevent, '*', 'up:67,86,88+meta');
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Y.on('key', M.mod_quiz.secure_window.prevent, '*', 'down:67,86,88+meta');
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},
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clear_status: function() {
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window.status = '';
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setTimeout(M.mod_quiz.secure_window.clear_status, 10);
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},
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prevent: function(e) {
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alert(M.str.quiz.functiondisabledbysecuremode);
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e.halt();
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},
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prevent_mouse: function(e) {
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if (e.button == 1 && /^(INPUT|TEXTAREA|BUTTON|SELECT|LABEL|A)$/i.test(e.target.get('tagName'))) {
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// Left click on a button or similar. No worries.
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return;
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}
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e.halt();
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},
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/**
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* Event handler for the quiz start attempt button.
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*/
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start_attempt_action: function(e, args) {
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if (args.startattemptwarning == '') {
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openpopup(e, args);
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} else {
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M.util.show_confirm_dialog(e, {
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message: args.startattemptwarning,
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callback: function() {
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openpopup(e, args);
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},
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continuelabel: M.util.get_string('startattempt', 'quiz')
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});
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}
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},
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init_close_button: function(Y, url) {
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Y.on('click', function(e) {
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M.mod_quiz.secure_window.close(url, 0)
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}, '#secureclosebutton');
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},
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close: function(url, delay) {
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setTimeout(function() {
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if (window.opener) {
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window.opener.document.location.reload();
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window.close();
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} else {
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window.location.href = url;
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}
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}, delay*1000);
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}
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};
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