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atcoder-problem-navigator

Shows a navigation bar on AtCoder contest pages for jumping to problems.

Versão de: 24/05/2019. Veja: a última versão.

  1. // ==UserScript==
  2. // @name         atcoder-problem-navigator
  3. // @namespace    https://github.com/yoshrc
  4. // @version      1.1
  5. // @description  Shows a navigation bar on AtCoder contest pages for jumping to problems.
  6. // @author       yoshrc
  7. // @match        https://atcoder.jp/contests/*
  8. // @grant        none
  9. // @require http://code.jquery.com/jquery-3.3.1.min.js
  10. // ==/UserScript==
  11.  
  12. (function() {
  13.     'use strict';
  14.  
  15.     const contest = location.href.match(/^https:\/\/atcoder\.jp\/contests\/([^\/]+)/)[1];
  16.     const key = 'atcoder-problem-navigator-' + contest;
  17.  
  18.     if (location.href.match(/^https:\/\/atcoder\.jp\/contests\/([^\/]+)\/tasks\/?$/)) {
  19.         const problems = [];
  20.         const $rows = $('tbody>tr');
  21.         for (let i = 0; i < $rows.length; i++) {
  22.             const $links = $rows.eq(i).find('a');
  23.             const href = $links.eq(0).attr('href');
  24.             const text = $links.eq(0).text() + ' - ' + $links.eq(1).text();
  25.             problems.push({
  26.                 href: href,
  27.                 text: text
  28.             });
  29.         }
  30.         localStorage[key] = JSON.stringify(problems);
  31.     }
  32.  
  33.     if (key in localStorage) {
  34.         let problems = JSON.parse(localStorage[key]);
  35.         const $problemsBar = $('<ul class="nav nav-tabs"></ul>');
  36.         for (let i = 0; i < problems.length; i++) {
  37.             const $link = $('<a style="margin-left: 10px; margin-right: 10px; white-space: nowrap"></a>')
  38.                   .attr('href', problems[i].href)
  39.                   .text(problems[i].text);
  40.             $problemsBar.append($('<span> </span>').append($link));
  41.         }
  42.         $('#contest-nav-tabs').append($problemsBar);
  43.     }
  44. })();