790 lines
No EOL
25 KiB
JavaScript
790 lines
No EOL
25 KiB
JavaScript
// IE 8
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if (!Array.prototype.indexOf) {
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Array.prototype.indexOf = function (obj) {
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for (var i = 0; i < this.length; i++) {
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if (this[i] == obj) {
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return i;
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}
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}
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return -1;
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}
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}
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if (!String.prototype.startsWith) {
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String.prototype.startsWith = function (searchString, position) {
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return this.substr(position || 0, searchString.length) === searchString;
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};
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}
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if (!String.prototype.endsWith) {
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String.prototype.endsWith = function (searchString, position) {
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var subjectString = this.toString();
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if (typeof position !== 'number' || !isFinite(position) || Math.floor(position) !== position || position > subjectString.length) {
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position = subjectString.length;
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}
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position -= searchString.length;
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var lastIndex = subjectString.lastIndexOf(searchString, position);
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return lastIndex !== -1 && lastIndex === position;
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};
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}
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function register_toggle(link) {
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link.click(function () {
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var toggled = link.next('.toggled');
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if (toggled.is(':visible')) {
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toggled.hide(400);
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link.removeClass('open');
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link.addClass('closed');
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} else {
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toggled.show(400);
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link.addClass('open');
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link.removeClass('closed');
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}
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});
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}
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function register_all_toggles() {
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$('.toggle').each(function () {
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register_toggle($(this));
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});
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};
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function featureTest(property, value, noPrefixes) {
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var prop = property + ':',
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el = document.createElement('test'),
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mStyle = el.style;
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if (!noPrefixes) {
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mStyle.cssText = prop + ['-webkit-', '-moz-', '-ms-', '-o-', ''].join(value + ';' + prop) + value + ';';
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} else {
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mStyle.cssText = prop + value;
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}
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return !!mStyle[property];
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}
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window.fix_div = function (div, height) {
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var div_offset = div.offset().top - $('html').offset().top;
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var is_moving;
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var moving = function () {
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div.css('position', 'absolute').css('top', div_offset);
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is_moving = true;
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};
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var fix = function () {
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div.css('position', 'fixed').css('top', height);
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is_moving = false;
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};
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($(window).scrollTop() - div_offset > -height) ? fix() : moving();
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$(window).scroll(function () {
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if (($(window).scrollTop() - div_offset > -height) == is_moving)
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is_moving ? fix() : moving();
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});
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};
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if (!Date.now) {
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Date.now = function () {
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return new Date().getTime();
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};
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}
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function count_down(label) {
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var end_time = new Date(label.attr('data-secs').replace(' ', 'T'));
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function format(num) {
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var s = "0" + num;
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return s.substr(s.length - 2);
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}
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var timer = setInterval(function () {
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var time = Math.round((end_time - Date.now()) / 1000);
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if (time <= 0) {
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clearInterval(timer);
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setTimeout(function() {
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window.location.reload();
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}, 2000);
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}
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var d = Math.floor(time / 86400);
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var h = Math.floor(time % 86400 / 3600);
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var m = Math.floor(time % 3600 / 60);
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var s = time % 60;
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if (d > 0)
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label.text(npgettext('time format with day', '%d day %h:%m:%s', '%d days %h:%m:%s', d)
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.replace('%d', d).replace('%h', format(h)).replace('%m', format(m)).replace('%s', format(s)));
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else
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label.text(pgettext('time format without day', '%h:%m:%s')
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.replace('%h', format(h)).replace('%m', format(m)).replace('%s', format(s)));
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}, 1000);
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}
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function register_time(elems, limit) { // in hours
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if ('limit_time' in window) limit = window.limit_time;
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else limit = limit || 300 * 24;
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elems.each(function () {
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var outdated = false;
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var $this = $(this);
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var time = moment($this.attr('data-iso'));
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var rel_format = $this.attr('data-format');
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var abs = $this.text();
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function update() {
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if ($('body').hasClass('window-hidden'))
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return outdated = true;
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outdated = false;
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if (moment().diff(time, 'hours') > limit) {
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$this.text(abs);
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return;
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}
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$this.text(rel_format.replace('{time}', time.fromNow()));
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setTimeout(update, 10000);
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}
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$(window).on('dmoj:window-visible', function () {
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if (outdated)
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update();
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});
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update();
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});
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}
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window.notification_template = {
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icon: '/logo.svg'
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};
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window.notification_timeout = 5000;
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window.notify = function (type, title, data, timeout) {
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if (localStorage[type + '_notification'] != 'true') return;
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var template = window[type + '_notification_template'] || window.notification_template;
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var data = (typeof data !== 'undefined' ? $.extend({}, template, data) : template);
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var object = new Notification(title, data);
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if (typeof timeout === 'undefined')
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timeout = window.notification_timeout;
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if (timeout)
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setTimeout(function () {
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object.close();
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}, timeout);
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return object;
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};
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window.register_notify = function (type, options) {
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if (typeof options === 'undefined')
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options = {};
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function status_change() {
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if ('change' in options)
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options.change(localStorage[key] == 'true');
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}
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var key = type + '_notification';
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if ('Notification' in window) {
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if (!(key in localStorage) || Notification.permission !== 'granted')
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localStorage[key] = 'false';
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if ('$checkbox' in options) {
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options.$checkbox.change(function () {
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var status = $(this).is(':checked');
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if (status) {
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if (Notification.permission === 'granted') {
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localStorage[key] = 'true';
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notify(type, 'Notification enabled!');
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status_change();
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} else
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Notification.requestPermission(function (permission) {
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if (permission === 'granted') {
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localStorage[key] = 'true';
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notify(type, 'Notification enabled!');
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} else localStorage[key] = 'false';
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status_change();
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});
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} else {
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localStorage[key] = 'false';
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status_change();
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}
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}).prop('checked', localStorage[key] == 'true');
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}
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$(window).on('storage', function (e) {
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e = e.originalEvent;
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if (e.key === key) {
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if ('$checkbox' in options)
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options.$checkbox.prop('checked', e.newValue == 'true');
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status_change();
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}
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});
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} else {
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if ('$checkbox' in options) options.$checkbox.hide();
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localStorage[key] = 'false';
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}
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status_change();
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};
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window.notify_clarification = function(msg) {
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var message = `Problem ${msg.order} (${msg.problem__name}):\n` + msg.description;
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alert(message);
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}
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window.register_contest_notification = function(url) {
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function get_clarifications() {
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$.get(url)
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.fail(function() {
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console.log("Fail to update clarification");
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})
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.done(function(data) {
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for (i of data) {
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window.notify_clarification(i);
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}
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if (data.status == 403) {
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console.log("Fail to retrieve data");
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}
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})
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}
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get_clarifications();
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setInterval(get_clarifications, 60 * 1000);
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}
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$.fn.textWidth = function () {
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var html_org = $(this).html();
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var html_calc = '<span style="white-space: nowrap;">' + html_org + '</span>';
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$(this).html(html_calc);
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var width = $(this).find('span:first').width();
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$(this).html(html_org);
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return width;
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};
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function registerPopper($trigger, $dropdown) {
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const popper = Popper.createPopper($trigger[0], $dropdown[0], {
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placement: 'bottom-end',
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modifiers: [
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{
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name: 'offset',
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options: {
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offset: [0, 8],
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},
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},
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],
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});
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$trigger.click(function(e) {
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$dropdown.toggle();
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popper.update();
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});
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$dropdown.css("min-width", $trigger.width() + 'px');
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$(document).on("click touchend", function(e) {
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var target = $(e.target);
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if (target.closest($trigger).length === 0 && target.closest($dropdown).length === 0) {
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$dropdown.hide();
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}
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})
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}
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function populateCopyButton() {
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var copyButton;
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$('pre code').each(function () {
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var copyButton = $('<span>', {
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'class': 'btn-clipboard',
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'data-clipboard-text': $(this).text(),
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'title': 'Click to copy'
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}).append('<i class="far fa-copy"></i>');
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if ($(this).parent().width() > 100) {
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copyButton.append('<span style="margin-left: 2px">Copy</span>');
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}
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$(this).before($('<div>', {'class': 'copy-clipboard'})
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.append(copyButton));
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$(copyButton.get(0)).mouseleave(function () {
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$(this).attr('class', 'btn-clipboard');
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$(this).removeAttr('aria-label');
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});
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var curClipboard = new Clipboard(copyButton.get(0));
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curClipboard.on('success', function (e) {
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e.clearSelection();
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showTooltip(e.trigger, 'Copied!');
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});
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curClipboard.on('error', function (e) {
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showTooltip(e.trigger, fallbackMessage(e.action));
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});
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});
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}
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function register_copy_clipboard($elements, callback) {
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$elements.on('paste', function(event) {
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const items = (event.clipboardData || event.originalEvent.clipboardData).items;
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for (const index in items) {
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const item = items[index];
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if (item.kind === 'file' && item.type.indexOf('image') !== -1) {
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const blob = item.getAsFile();
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const formData = new FormData();
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formData.append('image', blob);
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$(this).prop('disabled', true);
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$.ajax({
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url: '/pagedown/image-upload/',
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type: 'POST',
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data: formData,
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processData: false,
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contentType: false,
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success: function(data) {
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// Assuming the server returns the URL of the image
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const imageUrl = data.url;
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const editor = $(event.target); // Get the textarea where the event was triggered
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let currentMarkdown = editor.val();
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const markdownImageText = ''; // Markdown for an image
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if (currentMarkdown) currentMarkdown += "\n";
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currentMarkdown += markdownImageText;
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editor.val(currentMarkdown);
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callback?.();
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},
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error: function() {
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alert('There was an error uploading the image.');
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},
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complete: () => {
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// Re-enable the editor
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$(this).prop('disabled', false).focus();
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}
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});
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// We only handle the first image in the clipboard data
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break;
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}
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}
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});
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}
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function activateBlogBoxOnClick() {
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$('.blog-box').on('click', function () {
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var $description = $(this).children('.blog-description');
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var max_height = $description.css('max-height');
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if (max_height !== 'fit-content') {
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$description.css('max-height', 'fit-content');
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$(this).css('cursor', 'auto');
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$(this).removeClass('pre-expand-blog');
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$(this).children().children('.show-more').hide();
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}
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});
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$('.blog-box').each(function () {
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var $precontent = $(this).children('.blog-description').height();
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var $content = $(this).children().children('.content-description').height();
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if ($content == undefined) {
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$content = $(this).children().children('.md-typeset').height()
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}
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if ($content > $precontent - 30) {
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$(this).addClass('pre-expand-blog');
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$(this).css('cursor', 'pointer');
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} else {
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$(this).children().children('.show-more').hide();
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}
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});
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}
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function changeTabParameter(newTab) {
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const url = new URL(window.location);
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const searchParams = new URLSearchParams(url.search);
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searchParams.set('tab', newTab);
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searchParams.delete('page');
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url.search = searchParams.toString();
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return url.href;
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}
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function submitFormWithParams($form, method) {
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const currentUrl = new URL(window.location.href);
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const searchParams = new URLSearchParams(currentUrl.search);
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const formData = $form.serialize();
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const params = new URLSearchParams(formData);
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if (searchParams.has('tab')) {
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params.set('tab', searchParams.get('tab'));
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}
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const fullUrl = currentUrl.pathname + '?' + params.toString();
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if (method === "GET") {
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window.location.href = fullUrl;
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}
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else {
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var $formToSubmit = $('<form>')
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.attr('action', fullUrl)
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.attr('method', 'POST')
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.appendTo('body');
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$formToSubmit.append($('<input>').attr({
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type: 'hidden',
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name: 'csrfmiddlewaretoken',
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value: $.cookie('csrftoken')
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}));
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$formToSubmit.submit();
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}
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}
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function saveCurrentPageToSessionStorage() {
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const storageLimit = 5;
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const sessionStorageKey = 'oj-content-keys';
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let key = `oj-content-${window.location.href}`;
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let $contentClone = $('body').clone();
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$contentClone.find('.select2').remove();
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$contentClone.find('.select2-hidden-accessible').removeClass('select2-hidden-accessible');
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$contentClone.find('.noUi-base').remove();
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$contentClone.find('.wmd-button-row').remove();
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let contentData = JSON.stringify({
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"html": $contentClone.html(),
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"page": window.page,
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"has_next_page": window.has_next_page,
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"scrollOffset": $(window).scrollTop(),
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});
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let keys = JSON.parse(sessionStorage.getItem(sessionStorageKey)) || [];
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// Remove the existing key if it exists
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if (keys.includes(key)) {
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keys = keys.filter(k => k !== key);
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}
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keys.push(key);
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if (keys.length > storageLimit) {
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let oldestKey = keys.shift();
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sessionStorage.removeItem(oldestKey);
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}
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sessionStorage.setItem(sessionStorageKey, JSON.stringify(keys));
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sessionStorage.setItem(key, contentData);
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}
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function loadPageFromSessionStorage() {
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let key = `oj-content-${window.location.href}`;
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let content = sessionStorage.getItem(key);
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if (content) {
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content = JSON.parse(content);
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$('body').html(content.html);
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onWindowReady();
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window.PAGE_FROM_BACK_BUTTON_CACHE = true;
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setTimeout(() => {
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$(window).scrollTop(content.scrollOffset - 50);
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}, 1);
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window.page = content.page;
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window.has_next_page = content.has_next_page;
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}
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}
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let currentRequest = null; // Variable to keep track of the current request
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function navigateTo(url, reload_container, force_new_page=false) {
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if (url === '#') return;
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if (force_new_page) {
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window.location.href = url;
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return;
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}
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if (!reload_container || !$(reload_container).length) {
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reload_container = "#content";
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}
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if (currentRequest) {
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currentRequest.abort();
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}
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const controller = new AbortController();
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const signal = controller.signal;
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currentRequest = controller;
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$(window).off("scroll");
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saveCurrentPageToSessionStorage();
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replaceLoadingPage(reload_container);
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const toUpdateElements = [
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"#nav-container",
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"#js_media",
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"#media",
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".left-sidebar",
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"#bodyend",
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];
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$.ajax({
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url: url,
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method: 'GET',
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dataType: 'html',
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signal: signal,
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success: function (data) {
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let reload_content = $(data).find(reload_container).first();
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if (!reload_content.length) {
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reload_container = "#content";
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reload_content = $(data).find(reload_container).first();
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}
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if (reload_content.length) {
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window.history.pushState("", "", url);
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$(window).scrollTop(0);
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$("#loading-bar").stop(true, true);
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$("#loading-bar").hide().css({ width: 0});
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for (let elem of toUpdateElements) {
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$(elem).replaceWith($(data).find(elem).first());
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}
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$(reload_container).replaceWith(reload_content);
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$(document).prop('title', $(data).filter('title').text());
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renderKatex($(reload_container)[0]);
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if ('DjangoPagedown' in window) {
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DjangoPagedown.init();
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}
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onWindowReady();
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registerNavList();
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$('.xdsoft_datetimepicker').hide();
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} else {
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window.location.href = url;
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}
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},
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error: function (xhr, status, error) {
|
|
if (status !== 'abort') { // Ignore aborted requests
|
|
window.location.href = url;
|
|
}
|
|
}
|
|
});
|
|
}
|
|
|
|
function isEligibleLinkToRegister($e) {
|
|
if ($e.attr('target') === '_blank') {
|
|
return false;
|
|
}
|
|
if ($e.data('initialized_navigation')) {
|
|
return false;
|
|
}
|
|
const href = $e.attr('href');
|
|
if (!href) return false;
|
|
return (
|
|
href.startsWith('http')
|
|
|| href.startsWith('/')
|
|
|| href.startsWith('#')
|
|
|| href.startsWith('?')
|
|
);
|
|
};
|
|
|
|
function replaceLoadingPage(reload_container) {
|
|
const loadingPage = `
|
|
<div style="height: 80vh; margin: 0; display: flex; align-items: center; justify-content: center; width: 100%; font-size: xx-large;">
|
|
<i class="fa fa-spinner fa-pulse"></i>
|
|
</div>
|
|
`;
|
|
$(reload_container).fadeOut(100, function() {
|
|
$(this).html(loadingPage).fadeIn(100);
|
|
});
|
|
}
|
|
|
|
function registerNavigation() {
|
|
const containerMap = {
|
|
'.left-sidebar-item': '.middle-right-content',
|
|
'.pagination li a': '.middle-content',
|
|
'.tabs li a': '.middle-content',
|
|
'#control-panel a': '.middle-content',
|
|
};
|
|
|
|
$.each(containerMap, function(selector, target) {
|
|
$(selector).each(function() {
|
|
const href = $(this).attr('href');
|
|
const force_new_page = $(this).data('force_new_page');
|
|
|
|
if (isEligibleLinkToRegister($(this))) {
|
|
$(this).data('initialized_navigation', true);
|
|
|
|
$(this).on('click', function(e) {
|
|
e.preventDefault();
|
|
let containerSelector = null;
|
|
for (let key in containerMap) {
|
|
if ($(this).is(key)) {
|
|
containerSelector = containerMap[key];
|
|
break;
|
|
}
|
|
}
|
|
navigateTo(href, containerSelector, force_new_page);
|
|
});
|
|
}
|
|
});
|
|
});
|
|
}
|
|
|
|
function onWindowReady() {
|
|
// http://stackoverflow.com/a/1060034/1090657
|
|
var hidden = 'hidden';
|
|
|
|
// Standards:
|
|
if (hidden in document)
|
|
document.addEventListener('visibilitychange', onchange);
|
|
else if ((hidden = 'mozHidden') in document)
|
|
document.addEventListener('mozvisibilitychange', onchange);
|
|
else if ((hidden = 'webkitHidden') in document)
|
|
document.addEventListener('webkitvisibilitychange', onchange);
|
|
else if ((hidden = 'msHidden') in document)
|
|
document.addEventListener('msvisibilitychange', onchange);
|
|
// IE 9 and lower:
|
|
else if ('onfocusin' in document)
|
|
document.onfocusin = document.onfocusout = onchange;
|
|
// All others:
|
|
else
|
|
window.onpageshow = window.onpagehide
|
|
= window.onfocus = window.onblur = onchange;
|
|
|
|
function onchange(evt) {
|
|
var v = 'window-visible', h = 'window-hidden', evtMap = {
|
|
focus: v, focusin: v, pageshow: v, blur: h, focusout: h, pagehide: h
|
|
};
|
|
|
|
evt = evt || window.event;
|
|
if (evt.type in evtMap)
|
|
document.body.className = evtMap[evt.type];
|
|
else
|
|
document.body.className = this[hidden] ? 'window-hidden' : 'window-visible';
|
|
|
|
if ('$' in window)
|
|
$(window).trigger('dmoj:' + document.body.className);
|
|
}
|
|
|
|
$('.tabs').each(function () {
|
|
var $this = $(this), $h2 = $(this).find('h2'), $ul = $(this).find('ul');
|
|
var cutoff = ($h2.textWidth() || 400) + 20, handler;
|
|
$ul.children().each(function () {
|
|
cutoff += $(this).width();
|
|
});
|
|
$(window).resize(handler = function () {
|
|
$this.toggleClass('tabs-no-flex', $this.width() < cutoff);
|
|
});
|
|
handler();
|
|
});
|
|
|
|
// set the initial state (but only if browser supports the Page Visibility API)
|
|
if (document[hidden] !== undefined)
|
|
onchange({type: document[hidden] ? 'blur' : 'focus'});
|
|
|
|
$("a.close").click(function () {
|
|
var $closer = $(this);
|
|
$closer.parent().fadeOut(200);
|
|
});
|
|
|
|
register_time($('.time-with-rel'));
|
|
|
|
if (typeof window.orientation !== 'undefined') {
|
|
$(window).resize(function () {
|
|
var width = Math.max(document.documentElement.clientWidth, window.innerWidth || 0);
|
|
// $('#viewport').attr('content', width > 480 ? 'initial-scale=1' : 'width=480');
|
|
});
|
|
}
|
|
|
|
$.ajaxSetup({
|
|
beforeSend: function (xhr, settings) {
|
|
if (!(/^(GET|HEAD|OPTIONS|TRACE)$/.test(settings.type)) && !this.crossDomain)
|
|
xhr.setRequestHeader('X-CSRFToken', $.cookie('csrftoken'));
|
|
}
|
|
});
|
|
|
|
register_copy_clipboard($('textarea.wmd-input'));
|
|
|
|
$('form').submit(function (evt) {
|
|
// Prevent multiple submissions of forms, see #565
|
|
$("input[type='submit']").prop('disabled', true);
|
|
});
|
|
|
|
$('.lang-dropdown-item').click(function() {
|
|
$('select[name="language"]').val($(this).attr('value'));
|
|
$('#form-lang').submit();
|
|
})
|
|
$('#logout').on('click', () => $('#logout-form').submit());
|
|
|
|
populateCopyButton();
|
|
|
|
$('a').click(function() {
|
|
var href = $(this).attr('href');
|
|
var target = $(this).attr('target');
|
|
if (!href || href === '#' || href.startsWith("javascript") ||
|
|
$(this).attr("data-featherlight") ||
|
|
target === "_blank"
|
|
) {
|
|
return;
|
|
}
|
|
|
|
$("#loading-bar").show();
|
|
$("#loading-bar").animate({ width: "100%" }, 2000, function() {
|
|
$(this).stop(true, true);
|
|
$(this).hide().css({ width: 0});
|
|
});
|
|
});
|
|
|
|
$('.errorlist').each(function() {
|
|
var errorList = $(this);
|
|
errorList.nextAll('input, select, textarea').first().after(errorList);
|
|
});
|
|
register_all_toggles();
|
|
activateBlogBoxOnClick();
|
|
registerNavigation();
|
|
registerPopper($('#nav-lang-icon'), $('#lang-dropdown'));
|
|
registerPopper($('#user-links'), $('#userlink_dropdown'));
|
|
}
|
|
|
|
function registerNavList() {
|
|
var $nav_list = $('#nav-list');
|
|
$('#navicon').click(function (event) {
|
|
event.stopPropagation();
|
|
$nav_list.toggle();
|
|
if ($nav_list.is(':hidden'))
|
|
$(this).blur().removeClass('hover');
|
|
else {
|
|
$(this).addClass('hover');
|
|
$nav_list.find('li ul').css('left', $('#nav-list').width()).hide();
|
|
}
|
|
}).hover(function () {
|
|
$(this).addClass('hover');
|
|
}, function () {
|
|
$(this).removeClass('hover');
|
|
});
|
|
|
|
$nav_list.find('li a .nav-expand').click(function (event) {
|
|
event.preventDefault();
|
|
$(this).parent().siblings('ul').css('display', 'block');
|
|
});
|
|
|
|
$nav_list.find('li a').each(function () {
|
|
if (!$(this).siblings('ul').length)
|
|
return;
|
|
$(this).on('contextmenu', function (event) {
|
|
event.preventDefault();
|
|
}).on('taphold', function () {
|
|
$(this).siblings('ul').css('display', 'block');
|
|
});
|
|
});
|
|
|
|
$nav_list.click(function (event) {
|
|
event.stopPropagation();
|
|
});
|
|
|
|
$('html').click(function () {
|
|
$nav_list.hide();
|
|
});
|
|
}
|
|
|
|
$(function() {
|
|
onWindowReady();
|
|
registerNavList();
|
|
$(window).on('beforeunload', saveCurrentPageToSessionStorage);
|
|
|
|
if (window.performance &&
|
|
window.performance.navigation.type
|
|
=== window.performance.navigation.TYPE_BACK_FORWARD) {
|
|
loadPageFromSessionStorage();
|
|
}
|
|
|
|
window.addEventListener('popstate', (e) => {
|
|
window.location.href = e.currentTarget.location.href;
|
|
});
|
|
}); |