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Better Luogu Problem Searcher

洛谷题目跳转器优化

当前为 2019-05-06 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name         Better Luogu Problem Searcher
  3. // @namespace    n/a
  4. // @version      0
  5. // @description  洛谷题目跳转器优化
  6. // @author       iotang
  7. // @match        https://www.luogu.org
  8. // @match        https://www.luogu.org/
  9. // @match        https://www.luogu.org/#feed
  10. // @match        https://www.luogu.org/#feed/
  11. // @match        http://www.luogu.org
  12. // @match        http://www.luogu.org/
  13. // @match        http://www.luogu.org/#feed
  14. // @match        http://www.luogu.org/#feed/
  15. // @grant        none
  16. // ==/UserScript==
  17.  
  18. (function()
  19. {
  20.     'use strict';
  21.  
  22.     function searchfn()
  23.     {
  24.         var target = document.getElementsByClassName("am-form-field")[0].value;
  25.         if(target === "")return;
  26.  
  27.         var targetu = target.toUpperCase();
  28.         var go = "";
  29.  
  30.         if(target.match(/^[0-9]+$/) == target)
  31.         {
  32.             go = "https://www.luogu.org/fe/problem/P" + target;
  33.         }
  34.         else if(targetu.match(/^[0-9]+[A-Z]?[0-9]?$/) == targetu)
  35.         {
  36.             go = "https://www.luogu.org/fe/problem/CF" + targetu;
  37.         }
  38.         else if(targetu.match(/^(?:P|CF|SP|AT|UVA)[0-9]+[A-Z]?[0-9]?$/) == targetu)
  39.         {
  40.             go = "https://www.luogu.org/fe/problem/" + targetu;
  41.         }
  42.         else
  43.         {
  44.             go = "https://www.luogu.org/fe/problem/list?keyword=" + target;
  45.         }
  46.  
  47.         location.href = go;
  48.     }
  49.  
  50.     var locations =
  51.         document.getElementsByClassName("lg-index-content")[0]
  52.     .getElementsByClassName("lg-article lg-index-stat")[0]
  53.     .getElementsByClassName("am-btn am-btn-primary am-btn-sm")[0]
  54.     .parentNode;
  55.  
  56.     var button = document.createElement("button");
  57.     button.className = "am-btn am-btn-success am-btn-sm";
  58.     button.name = "gotosearch";
  59.     button.id = "gotosearch";
  60.     button.innerHTML = "搜索";
  61.     button.onclick = function(){searchfn();}
  62.  
  63.     locations.appendChild(button);
  64.  
  65.     document.getElementsByClassName("am-form-field")[0].placeholder = "输入题号或者题目名字";
  66.     document.getElementsByClassName("am-form-field")[0].onkeyup = function(event){if(event.keyCode === 13){searchfn();}}
  67.  
  68.     document.getElementsByClassName("lg-article lg-index-stat")[0].getElementsByTagName("h2")[0].innerHTML = "问题搜索";
  69. })();