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LeetCode Assistant

【使用前先看介绍/有问题可反馈】力扣助手 (LeetCode Assistant)：为力扣页面增加辅助功能。

当前为 2021-09-10 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name         LeetCode Assistant
  3. // @namespace    http://tampermonkey.net/
  4. // @version      1.0.0
  5. // @description  【使用前先看介绍/有问题可反馈】力扣助手 (LeetCode Assistant)：为力扣页面增加辅助功能。
  6. // @author       cc
  7. // @require      https://cdn.bootcss.com/jquery/3.4.1/jquery.js
  8. // @require      https://greasyfork.org/scripts/422854-bubble-message.js
  9. // @include      https://leetcode-cn.com/problems/*
  10. // ==/UserScript==
  11.  
  12. (function() {
  13.   const bm = new BubbleMessage();
  14.   var executing = false;
  15.  
  16.   function insertTextarea() {
  17.     let textarea = document.createElement('textarea');
  18.     textarea.setAttribute('id', 'leetcode-assistant-textarea');
  19.     document.body.appendChild(textarea);
  20.   }
  21.  
  22.   function executeCopy(value) {
  23.     let textarea = document.getElementById('leetcode-assistant-textarea');
  24.     textarea.value = value;
  25.     textarea.setAttribute('value', value);
  26.     textarea.select();
  27.     document.execCommand('copy');
  28.     bm.message({
  29.       type: 'success',
  30.       message: '复制成功',
  31.       duration: 1500,
  32.     });
  33.   }
  34.  
  35.   function requestCode(qid) {
  36.     let query = `
  37.       query mySubmissionDetail($id: ID!) {
  38.         submissionDetail(submissionId: $id) {
  39.           id
  40.           code
  41.           runtime
  42.           memory
  43.           rawMemory
  44.           statusDisplay
  45.           timestamp
  46.           lang
  47.           passedTestCaseCnt
  48.           totalTestCaseCnt
  49.           sourceUrl
  50.           question {
  51.             titleSlug
  52.             title
  53.             translatedTitle
  54.             questionId
  55.             __typename
  56.           }
  57.           ... on GeneralSubmissionNode {
  58.             outputDetail {
  59.               codeOutput
  60.               expectedOutput
  61.               input
  62.               compileError
  63.               runtimeError
  64.               lastTestcase
  65.               __typename
  66.             }
  67.             __typename
  68.           }
  69.           submissionComment {
  70.             comment
  71.             flagType
  72.             __typename
  73.           }
  74.           __typename
  75.         }
  76.       }`;
  77.     $.ajax({
  78.       url: 'https://leetcode-cn.com/graphql/',
  79.       method: 'POST',
  80.       contentType: 'application/json',
  81.       data: JSON.stringify({
  82.         operationName: 'mySubmissionDetail',
  83.         query: query,
  84.         variables: {
  85.           id: qid
  86.         },
  87.       }),
  88.     }).then(res => {
  89.       executeCopy(res.data.submissionDetail.code);
  90.     });
  91.   }
  92.  
  93.   function insertCopyFunction() {
  94.     let tbody = document.querySelector('.ant-table-tbody');
  95.     let trs = [...tbody.querySelectorAll('tr')];
  96.     let processTr = (tr) => {
  97.       let qid = tr.dataset.rowKey;
  98.       let cell = tr.querySelector(':nth-child(4)');
  99.       cell.title = '点击复制代码'
  100.       cell.style = 'cursor: pointer; color: #007aff';
  101.       cell.addEventListener('click', function() {
  102.         requestCode(qid);
  103.       });
  104.     }
  105.     trs.forEach(processTr);
  106.     let observer = new MutationObserver(function(mutations) {
  107.       console.log(mutations);
  108.       mutations.forEach((mutation) => {
  109.         if (mutation.type == 'childList' && mutation.addedNodes.length == 1) {
  110.           let tr = mutation.addedNodes[0];
  111.           if (tr.tagName == 'TR')
  112.             processTr(tr);
  113.         }
  114.       });
  115.     });
  116.     observer.observe(tbody, { childList: true, subtree: true });
  117.     executing = false;
  118.   }
  119.  
  120.   function listenHistoryState() {
  121.     const _historyWrap = function(type) {
  122.       const orig = history[type];
  123.       const e = new Event(type);
  124.       return function() {
  125.           const rv = orig.apply(this, arguments);
  126.           e.arguments = arguments;
  127.           window.dispatchEvent(e);
  128.           return rv;
  129.         };
  130.       };
  131.     history.pushState = _historyWrap('pushState');
  132.     window.addEventListener('pushState', () => {
  133.       if (!executing) {
  134.         executing = true;
  135.         main();
  136.       }
  137.     });
  138.   }
  139.  
  140.   function main() {
  141.     if (location.href.match(/\/submissions\/$/)) {
  142.       (function r() {
  143.         if (document.querySelector('.ant-table-thead')) {
  144.           insertCopyFunction();
  145.         } else {
  146.           setTimeout(r, 500);
  147.         }
  148.       })();
  149.     } else {
  150.       executing = false;
  151.     }
  152.   }
  153.  
  154.   window.addEventListener('load', () => {
  155.     insertTextarea();
  156.     listenHistoryState();
  157.     main();
  158.   });
  159. })();