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images predownload

predownload the images in web

当前为 2024-12-23 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name         images predownload
  3. // @license      MIT
  4. // @namespace    https://github.com/xgame-0/tamper-monkey-script
  5. // @version      2024-12-23
  6. // @description  predownload the images in web
  7. // @author       xgame-0
  8. // @match        *://hmjidi.com/*
  9. // @match        *://aman3.com/*
  10. // @match        *://aman3.org/*
  11. // @match        *://aman5.com/*
  12. // @match        *://aman5.org/*
  13. // @match        *://aman7.com/*
  14. // @match        *://aman7.org/*
  15. // @icon         data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
  16. // @grant        none
  17. // ==/UserScript==
  18.  
  19. 'use strict';
  20.  
  21. let CONFIGS = [{
  22.     // host: ['aman5.com', 'aman5.org', 'aman7.com', 'aman7.org'],
  23.     regExp: /aman[0-9]\.(com|org)/,
  24.     attr: 'data-original',
  25. }, {
  26.     host: ['hmjidi.com'],
  27.     attr: 'data-src',
  28. }]
  29.  
  30. function checkConfigHost(cfgHost) {
  31.     if (!Array.isArray(cfgHost)) {
  32.         let host = window.location.host;
  33.         return cfgHost && host.indexOf(cfgHost) >= 0
  34.     }
  35.  
  36.     for (let i in cfgHost) {
  37.         if (checkConfigHost(cfgHost[i])) {
  38.             return true;
  39.         }
  40.     }
  41.     return false
  42. }
  43.  
  44. function checkConfigRegExp(re) {
  45.     if (!Array.isArray(re)) {
  46.         let host = window.location.host;
  47.         return re && re.test(host)
  48.     }
  49.  
  50.     for (let i in re) {
  51.         if (checkConfigRegExp(re[i])) {
  52.             return true;
  53.         }
  54.     }
  55.     return false
  56. }
  57.  
  58. function getConfig() {
  59.     'use strict';
  60.  
  61.     let res = [];
  62.     for (let i in CONFIGS) {
  63.         let cfg = CONFIGS[i];
  64.         if (cfg.host && checkConfigHost(cfg.host)) {
  65.             res.push(cfg)
  66.         } else if (cfg.regExp && checkConfigRegExp(cfg.regExp)) {
  67.             res.push(cfg)
  68.         }
  69.     }
  70.     return res;
  71. }
  72.  
  73. function predownloadImage(attrName) {
  74.     'use strict';
  75.  
  76.     let l = document.querySelectorAll('img');
  77.     // console.log('images:', l);
  78.     l = l || [];
  79.     l.forEach((e) => {
  80.         console.log('image:', e);
  81.         let attrValue = e.getAttribute(attrName);
  82.         console.log('attr:', attrValue);
  83.         if (!attrValue) {
  84.             return;
  85.         }
  86.         window.setTimeout(function () {
  87.             let img = new Image();
  88.             img.src = attrValue;
  89.         });
  90.     })
  91. }
  92.  
  93. function main(ev) {
  94.     console.log('event:', ev);
  95.     let cfgs = getConfig() || [];
  96.     console.log('host:', window.location.host, ', cfgs:', cfgs)
  97.  
  98.     cfgs.every(cfg => {
  99.         console.log('cfg:', cfg);
  100.         predownloadImage(cfg.attr);
  101.     })
  102. };
  103.  
  104. // console.log('state:', document.readyState);
  105. if (['complete', 'loaded', 'interactive'].indexOf(document.readyState) >= 0) {
  106.     // console.log('state:', document.readyState);
  107.     main();
  108. }
  109. else {
  110.     window.addEventListener('DOMContentLoaded', main);
  111.     window.addEventListener('load', main);
  112. }
  113. // setTimeout(main, 0);