// ==UserScript==
// @name         CityU Canvas File Preview Fixer
// @namespace    http://tampermonkey.net/
// @version      0.2
// @description  Fix CityU Canvas File Preview
// @author       Benedict
// @match        https://canvas.cityu.edu.hk/courses/*
// @icon         https://www.google.com/s2/favicons?domain=cityu.edu.hk
// @grant        none
// @require      https://code.jquery.com/jquery-3.6.0.min.js
// @license      MIT License
// ==/UserScript==
(function() {
'use strict';
function GM_addStyle (cssStr) {
var D = document;
var newNode = D.createElement ('style');
newNode.textContent = cssStr;
var targ = D.getElementsByTagName ('head')[0] || D.body || D.documentElement;
targ.appendChild (newNode);
}
$('body').on('click', '.ef-file-preview-header-close.ef-file-preview-button', function(){
$('body').css('overflow', 'auto');
});
$('body').on('click', '.file_preview_link', function(){
$(this).removeClass('file_preview_link').addClass('inline_disabled preview_in_overlay');
$(this).data('canvas-previewable', 'false');
$('body').css('overflow', 'hidden');
});
$('body').on('click', '.preview_in_overlay', function(){
$('body').css('overflow', 'hidden');
});
GM_addStyle(`
span[dir="ltr"] > span > span {
position: sticky;
}
`);
})();