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nhentai_endless

nhentai automate next page

As of 2020-02-13. See the latest version.

  1. // ==UserScript==
  2. // @name        nhentai_endless
  3. // @namespace   nhentai_endless
  4. // @supportURL  https://github.com/zhuzemin
  5. // @description nhentai automate next page
  6. // @include     https://nhentai.net/*
  7. // @include     https://en.nyahentai3.com/*
  8. // @include     https://zh.nyahentai.co/*
  9. // @include     https://ja.nyahentai.net/*
  10. // @include     https://zh.nyahentai.pro/*
  11. // @include     https://nhentai.net/
  12. // @include     https://en.nyahentai3.com/
  13. // @include     https://zh.nyahentai.co/
  14. // @include     https://ja.nyahentai.net/
  15. // @include     https://zh.nyahentai.pro/
  16. // @version     1.12
  17. // @grant       GM_xmlhttpRequest
  18. // @grant         GM_registerMenuCommand
  19. // @grant         GM_setValue
  20. // @grant         GM_getValue
  21. // @run-at      document-start
  22. // @author      zhuzemin
  23. // @license     Mozilla Public License 2.0; http://www.mozilla.org/MPL/2.0/
  24. // @license     CC Attribution-ShareAlike 4.0 International; http://creativecommons.org/licenses/by-sa/4.0/
  25. // ==/UserScript==
  26. var config = {
  27.     'debug': false
  28. }
  29. var debug = config.debug ? console.log.bind(console)  : function () {
  30. };
  31.  
  32. var old_scrollY = 0;
  33. var request_pct = 0.05; // percentage of window height left on document to request next page, value must be between 0-1
  34.  
  35. var scroll_events = 0;
  36. var event_type = "scroll"; // or "wheel"
  37.  
  38. function onScroll(e) {
  39.     var y = window.scrollY;
  40.     // if (scroll_events === 0) old_scrollY = y; // stops only if scroll position was on 2. page
  41.     var delta = e.deltaY || y - old_scrollY; // NOTE: e.deltaY for "wheel" event
  42.     if (delta > 0 && (window.innerHeight + y) >= (document.body.clientHeight - (window.innerHeight * request_pct))) {
  43.         debug("scroll end");
  44.         window.removeEventListener(event_type, onScroll, false);
  45.  
  46.         try {
  47.             requestNextPage();
  48.         } catch (err) {
  49.             debug(err.name + ": " + err.message);
  50.             // NOTE: recovery unnecessary, input event handles it with reset on new search
  51.         }
  52.     }
  53.     old_scrollY = y;
  54.     scroll_events += 1;
  55. }
  56.  
  57.  
  58. class Content{
  59.     constructor(href) {
  60.         this.method = 'GET';
  61.         this.url = href;
  62.         this.headers = {
  63.             'User-agent': 'Mozilla/4.0 (compatible) Greasemonkey',
  64.             'Accept': 'application/atom+xml,application/xml,text/xml',
  65.             'Referer': window.location.href,
  66.         };
  67.         this.charset = 'text/plain;charset=utf8';
  68.     }
  69. }
  70.  
  71.  
  72. function requestNextPage() {
  73.     var nexts=document.querySelectorAll("span.next");
  74.     var next=nexts[nexts.length-1];
  75.     var a=next.querySelector("a");
  76.     debug("href: "+a.href);
  77.     var content=new Content(a.href);
  78.     var parentNode=document.querySelector('#content');
  79.     request(content,parentNode);
  80. }
  81.  
  82. var init = function () {
  83.     setInterval(function(){
  84.     window.addEventListener(event_type, onScroll, false);
  85.     window.addEventListener("beforeunload", function () {
  86.         window.scrollTo(0, 0);
  87.     }, false);
  88.     }, 3000);
  89. }
  90.  
  91.  
  92. function request(object,parentNode) {
  93.     var retries = 10;
  94.     GM_xmlhttpRequest({
  95.         method: object.method,
  96.         url: object.url,
  97.         headers: object.headers,
  98.         overrideMimeType: object.charset,
  99.         //synchronous: true
  100.         onload: function (responseDetails) {
  101.             if (responseDetails.status != 200) {
  102.                 // retry
  103.                 if (retries--) {          // *** Recurse if we still have retries
  104.                     setTimeout(request(),2000);
  105.                     return;
  106.                 }
  107.             }
  108.             debug(responseDetails);
  109.             var html = new DOMParser().parseFromString(responseDetails.responseText, "text/html");
  110.             //debug(galleryHtml);
  111.             //Dowork
  112.             var content = html.querySelector('#content');
  113.             parentNode.insertBefore(content,null);
  114.         }
  115.     });
  116. }
  117.  
  118.  
  119. window.addEventListener('DOMContentLoaded', init);