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Smart Page Auto Refresh

Intelligently refreshes web pages only when content changes - no configuration needed

当前为 2024-11-05 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name         Smart Page Auto Refresh
  3. // @namespace    http://tampermonkey.net/
  4. // @version      1.0
  5. // @description  Intelligently refreshes web pages only when content changes - no configuration needed
  6. // @author       kequn yang
  7. // @match        *://*
  8. // @match        file:///*
  9. // @grant        none
  10. // @run-at       document-end
  11. // @license MIT
  12. // ==/UserScript==
  13.  
  14. (function() {
  15.     'use strict';
  16.     
  17.     let lastContentHash = '';
  18.     const REFRESH_INTERVAL = 1000;  // 1 second default interval
  19.     
  20.     function getContentHash() {
  21.         const content = document.body.innerHTML;
  22.         let hash = 0;
  23.         for (let i = 0; i < content.length; i++) {
  24.             const char = content.charCodeAt(i);
  25.             hash = ((hash << 5) - hash) + char;
  26.             hash = hash & hash;
  27.         }
  28.         return hash.toString();
  29.     }
  30.     
  31.     function hasContentChanged() {
  32.         const currentHash = getContentHash();
  33.         const hasChanged = lastContentHash !== currentHash;
  34.         lastContentHash = currentHash;
  35.         return hasChanged;
  36.     }
  37.  
  38.     async function checkAndRefresh() {
  39.         try {
  40.             const response = await fetch(window.location.href);
  41.             const text = await response.text();
  42.             const tempDiv = document.createElement('div');
  43.             tempDiv.innerHTML = text;
  44.             
  45.             if (hasContentChanged()) {
  46.                 window.location.reload();
  47.             }
  48.         } catch (error) {
  49.             window.location.reload();
  50.         }
  51.     }
  52.  
  53.     function setupAutoRefresh() {
  54.         lastContentHash = getContentHash();
  55.         setInterval(checkAndRefresh, REFRESH_INTERVAL);
  56.     }
  57.  
  58.     setupAutoRefresh();
  59. })();