Loads manga chapter into one page in a long strip format, supports switching chapters and works for a variety of sites, minimal script with no dependencies, easy to implement new sites
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// ==UserScript==
// @name Manga Loader
// @namespace http://www.fuzetsu.com/MangaLoader
// @version 1.3.4
// @description Loads manga chapter into one page in a long strip format, supports switching chapters and works for a variety of sites, minimal script with no dependencies, easy to implement new sites
// @copyright 2014+, fuzetsu
// @grant GM_getValue
// @grant GM_setValue
// @grant GM_deleteValue
// @grant GM_registerMenuCommand
// @match http://bato.to/read/*
// @match http://mangafox.me/manga/*/*/*
// @match http://readms.com/r/*/*/*/*
// @match http://g.e-hentai.org/s/*/*
// @match http://exhentai.org/s/*/*
// @match *://www.fakku.net/*/*/read*
// @match http://www.mangareader.net/*/*
// @match http://www.mangahere.co/manga/*/*
// @match http://www.mangapanda.com/*/*
// @match http://mangadeer.com/manga/*/*/*/*
// @match http://mngacow.com/*/*
// @match http://nowshelf.com/watch/*
// @match http://nhentai.net/g/*/*
// ==/UserScript==
// set to true for manga load without prompt
var BM_MODE = false;
var scriptName = 'Manga Loader';
/**
Sample Implementation:
{
match: "http://domain.com/.*" // the url to react to for manga loading
, img: '#image' // css selector to get the page's manga image
, next: '#next_page' // css selector to get the link to the next page
, numpages: '#page_select' // css selector to get the number of pages. elements like (select, span, etc)
, curpage: '#page_select' // css selector to get the current page. usually the same as numPages if it's a select element
, nextchap: '#next_chap' // css selector to get the link to the next chapter
, prevchap: '#prev_chap' // same as above except for previous
, wait: 3000 // how many ms to wait before auto loading (to wait for elements to load)
, pages: function(next_url, current_page_number, callback, extract_function) {
// gets called requesting a certain page number (current_page_number)
// to continue loading execute callback with img to append as first parameter and next url as second parameter
// only really needs to be used on sites that have really unusual ways of loading images or depend on javascript
}
Any of the CSS selectors can be functions instead that return the desired value.
}
*/
var implementations = [
{ // Batoto
match: "^http://bato.to/read/.*"
, img: '#comic_page'
, next: '#full_image + div > a'
, numpages: '#page_select'
, curpage: '#page_select'
, nextchap: 'select[name=chapter_select]'
, prevchap: 'select[name=chapter_select]'
, invchap: true
}
, { // MangaPanda
match: "^http://www.mangapanda.com/.*/[0-9]*"
, img: '#img'
, next: '.next a'
, numpages: '#pageMenu'
, curpage: '#pageMenu'
, nextchap: 'td.c5 + td a'
, prevchap: 'table.c6 tr:last-child td:last-child a'
}
, { // MangaFox
match: "^http://mangafox.me/manga/.*/.*/.*"
, img: '#image'
, next: '.next_page'
, numpages: 'select.m'
, curpage: 'select.m'
, nextchap: '#chnav p + p a'
, prevchap: '#chnav a'
}
, { // MangaStream
match: "^http://readms.com/r/.*/.*/.*"
, img: '#manga-page'
, next: '.next a'
, numpages: function() {
var lastPage = getEl('.subnav-wrapper .controls .btn-group:last-child ul li:last-child');
return parseInt(lastPage.textContent.match(/[0-9]/g).join(''), 10);
}
, nextchap: function(prev) {
var found;
var chapters = [].slice.call(document.querySelectorAll('.controls > div:first-child > .dropdown-menu > li a'));
chapters.pop();
for(var i = 0; i < chapters.length; i++) {
if(window.location.href.indexOf(chapters[i].href) !== -1) {
found = chapters[i + (prev ? 1 : -1)];
if(found) return found.href;
}
}
}
, prevchap: function() {
return this.nextchap(true);
}
}
, { // MangaReader
match: "^http://www.mangareader.net/.*/.*"
, img:'#img'
, next: '.next a'
, numpages: '#pageMenu'
, curpage: '#pageMenu'
, nextchap: 'td.c5 + td a'
, prevchap: 'table.c6 tr:last-child td:last-child a'
}
, { // MangaCow
match: "^http://mngacow\.com/.*/[0-9]*"
, img: '.prw > a > img'
, next: '.prw > a:last-child'
, numpages: 'select.cbo_wpm_pag'
, curpage: 'select.cbo_wpm_pag'
, nextchap: function(prev) {
var chapSel = getEl('select.cbo_wpm_chp');
var nextChap = chapSel.options[chapSel.selectedIndex + (prev ? 1 : -1)];
if(nextChap) {
return 'http://mngacow.com/' + window.location.pathname.slice(1, window.location.pathname.slice(1).indexOf('/') + 2) + nextChap.value;
}
}
, prevchap: function() {
return this.nextchap(true);
}
}
, { // MangaHere
match: "^http://www.mangahere.co/manga/.*/.*"
, img: '#viewer img'
, next: '#viewer a'
, numpages: 'select.wid60'
, curpage: 'select.wid60'
, nextchap: '.reader_tip > p:nth-last-child(2) > a'
, prevchap: '.reader_tip > p:nth-last-child(1) > a'
}
, { // MangaDeer
match: "^http://mangadeer\.com/manga/.*"
, img: '.img-link > img'
, next: '.page > span:last-child > a'
, numpages: '#sel_page_1'
, curpage: '#sel_page_1'
, nextchap: function(prev) {
var ddl = getEl('#sel_book_1');
var index = ddl.selectedIndex + (prev ? -1 : 1);
if(index >= ddl.options.length) return;
var mangaName = window.location.href.slice(window.location.href.indexOf('manga/') + 6);
mangaName = mangaName.slice(0, mangaName.indexOf('/'));
return 'http://mangadeer.com/manga/' + mangaName + ddl.options[index].value + '/1';
}
, prevchap: function() {
return this.nextchap(true);
}
}
, { // GEH/EXH
match: "^http://(g.e-hentai|exhentai).org/s/.*/.*"
, img: '.sni > a > img, #img'
, next: '.sni > a, #i3 a'
}
, { // Fakku
match: "^http(s)?://www.fakku.net/.*/.*/read"
, img: '.current-page'
, next: '.current-page'
, numpages: '.drop'
, curpage: '.drop'
, pages: function(url, num, cb, ex) {
var firstNum = url.lastIndexOf('/')
, lastDot = url.lastIndexOf('.');
var c = url.charAt(firstNum);
while(c && !/[0-9]/.test(c)) {
c = url.charAt(++firstNum);
}
var curPage = parseInt(url.slice(firstNum, lastDot), 10);
var url = url.slice(0, firstNum) + ('00' + (curPage + 1)).slice(-3) + url.slice(lastDot);
cb(url, url);
}
}
, { // Nowshelf
match: "^http://nowshelf.com/watch/[0-9]*"
, img: '#image'
, next: '#image'
, numpages: function() {return parseInt(getEl('#page').textContent.slice(3), 10);}
, curpage: function() {return parseInt(getEl('#page > input').value, 10);}
, pages: function(url, num, cb, ex) {
var url = url.slice(0, -7) + ('00' + num).slice(-3) + url.slice(-4);
cb(url, url);
}
}
, { // nhentai
match: "^http://nhentai\.net\/g\/[0-9]*/[0-9]*"
, img: '#image-container > a > img'
, next: '#image-container > a'
, numpages: '.num-pages'
, curpage: '.current'
, imgmod: {altProp: 'data-cfsrc'}
}
];
var log = function(msg, type) {
type = type || 'log';
if(type === 'exit') {
throw scriptName + ' exit: ' + msg;
} else {
console[type](scriptName + ' ' + type + ': ', msg);
}
};
var getEl = function(q, c) {
if(!q) return;
return (c || document).querySelector(q);
};
var storeGet = function(key) {
if(typeof GM_getValue === "undefined") {
var value = localStorage.getItem(key);
if(value === "true" || value === "false") {
return (value === "true") ? true : false;
}
return value;
}
return GM_getValue(key);
};
var storeSet = function(key, value) {
if(typeof GM_setValue === "undefined") {
return localStorage.setItem(key, value);
}
return GM_setValue(key, value);
};
var storeDel = function(key) {
if(typeof GM_deleteValue === "undefined") {
return localStorage.removeItem(key);
}
return GM_deleteValue(key);
};
var extractInfo = function(selector, mod, context) {
selector = this[selector];
if(typeof selector === 'function') {
return selector.call(this);
}
var elem = getEl(selector, context)
, option;
mod = mod || {};
if(elem) {
switch (elem.nodeName.toLowerCase()) {
case 'img':
return (mod.altProp && elem.getAttribute(mod.altProp)) || elem.getAttribute('src');
case 'a':
return elem.getAttribute('href');
case 'ul':
return elem.children.length;
case 'select':
switch(mod.type) {
case 'index':
return elem.options.selectedIndex + 1;
case 'value':
option = elem.options[elem.options.selectedIndex + (mod.val || 0)] || {};
return option.value;
default:
return elem.options.length;
}
break;
default:
return elem.textContent;
}
}
};
var toStyleStr = function(obj) {
var stack = []
, key;
for(key in obj) {
if(obj.hasOwnProperty(key)) {
stack.push(key + ':' + obj[key]);
}
}
return stack.join(';');
};
var throttle = function(callback, limit) {
var wait = false;
return function() {
if(!wait) {
callback();
wait = true;
setTimeout(function() {
wait = false;
}, limit);
}
};
};
var createButton = function(text, action, styleStr) {
var button = document.createElement('button');
button.textContent = text;
button.onclick = action;
button.setAttribute('style', styleStr || '');
return button;
};
var getViewer = function(prevChapter, nextChapter) {
var viewerCss = toStyleStr({
'background-color': 'black'
, 'text-align': 'center'
, 'font': '.9em sans-serif'
})
, imagesCss = toStyleStr({
'margin': '5px 0'
})
, navCss = toStyleStr({
'text-decoration': 'none'
, 'color': 'black'
, 'background': 'linear-gradient(white, #ccc)'
, 'padding': '3px 10px'
, 'border': '1px solid #ccc'
, 'border-radius': '5px'
})
;
// clear all styles and scripts
var title = document.title;
document.head.innerHTML = '';
document.title = title;
// and navigation
var nav = (prevChapter ? '<a href="' + prevChapter + '" style="' + navCss + '" class="ml-chap-nav">Prev Chapter</a> ' : '') +
(storeGet('mAutoload') ? '' : '<a href="" style="' + navCss + '">Exit</a> ') +
(nextChapter ? '<a href="' + nextChapter + '" style="' + navCss + '" class="ml-chap-nav">Next Chapter</a>' : '');
document.body.innerHTML = nav + '<div id="images" style="' + imagesCss + '"></div>' + nav;
// set the viewer css
document.body.setAttribute('style', viewerCss);
// set up listeners for chapter navigation
document.addEventListener('click', function(evt) {
if(evt.target.className.indexOf('ml-chap-nav') !== -1) {
log('next chapter will autoload');
storeSet('autoload', 'yes');
}
}, false);
return getEl('#images');
};
var imageCss = toStyleStr({
'max-width': '100%'
, 'display': 'block'
, 'margin': '3px auto'
});
var addImage = function(src, loc, callback) {
var image = new Image();
image.onerror = function() {
log('failed to load ' + src);
image.remove();
};
image.onload = callback;
image.src = src;
image.setAttribute('style', imageCss);
loc.appendChild(image);
};
var loadManga = function(imp) {
var ex = extractInfo.bind(imp)
, imgUrl = ex('img')
, nextUrl = ex('next')
, numPages = ex('numpages')
, curPage = ex('curpage', {type:'index'}) || 1
, nextChapter = ex('nextchap', {type:'value', val: (imp.invchap && -1) || 1})
, prevChapter = ex('prevchap', {type:'value', val: (imp.invchap && 1) || -1})
, xhr = new XMLHttpRequest()
, d = document.implementation.createHTMLDocument()
, addAndLoad = function(img, next) {
addImage(img, loc);
loadNextPage(next);
}
, getPageInfo = function() {
var page = d.body;
d.body.innerHTML = xhr.response;
try {
// find image and link to next page
addAndLoad(ex('img', imp.imgmod, page), ex('next', null, page));
} catch(e) {
log('error getting details from next page, assuming end of chapter.');
}
}
, loadNextPage = function(url) {
if(mLoadLess && count % 10 === 0) {
if(resumeUrl) {
resumeUrl = null;
} else {
resumeUrl = url;
log('waiting for user to scroll further before loading more images, loaded ' + count + ' pages so far, next url is ' + resumeUrl);
return;
}
}
if(++curPage > numPages) {
log('reached "numPages" ' + numPages + ', assuming end of chapter');
return;
}
if(lastUrl === url) {
log('last url is the same as current, assuming end of chapter');
return;
}
lastUrl = url;
if(imp.pages) {
imp.pages(url, curPage, addAndLoad, ex);
} else {
xhr.open('get', url);
xhr.onload = getPageInfo;
xhr.onerror = function() {
log('failed to load page, aborting', 'error');
};
xhr.send();
}
count += 1;
}
, count = 1
, lastUrl, loc, resumeUrl
;
if(!imgUrl || !nextUrl) {
log('failed to retrieve ' + (!imgUrl ? 'image url' : 'next page url'), 'exit');
}
loc = getViewer(prevChapter, nextChapter);
if(mLoadLess) {
window.onscroll = throttle(function(e) {
if(!resumeUrl) return; // exit early if we don't have a position to resume at
var scrollBottom = document.body.scrollHeight - ((document.body.scrollTop || document.documentElement.scrollTop) + window.innerHeight);
if(scrollBottom < 4500) {
log('user scroll nearing end, loading more images starting from ' + resumeUrl);
loadNextPage(resumeUrl);
}
}, 100);
}
addAndLoad(imgUrl, nextUrl);
};
var pageUrl = window.location.href
, btnLoadCss = toStyleStr({
'position': 'fixed'
, 'bottom': 0
, 'right': 0
, 'padding': '5px'
, 'margin': '0 10px 10px 0'
, 'z-index': '99999'
})
, btnLoad
;
// used when switching chapters
var autoload = storeGet('autoload');
// manually set by user in menu
var mAutoload = storeGet('mAutoload') || false;
// should we load less pages at a time?
var mLoadLess = storeGet('mLoadLess') || true;
// clear autoload
storeDel('autoload');
// register menu commands
if(typeof GM_registerMenuCommand === 'function') {
GM_registerMenuCommand('ML: ' + (mAutoload ? 'Disable' : 'Enable') + ' manga autoload', function() {
storeSet('mAutoload', !mAutoload);
window.location.reload();
});
GM_registerMenuCommand('ML: Load ' + (mLoadLess ? 'full chapter in one go' : '10 pages at a time'), function() {
storeSet('mLoadLess', !mLoadLess);
window.location.reload();
});
}
log('starting...');
var success = implementations.some(function(imp) {
if(imp.match && (new RegExp(imp.match, 'i')).test(pageUrl)) {
if(BM_MODE || mAutoload || autoload) {
setTimeout(loadManga.bind(null, imp),imp.wait || 0);
return true;
}
// append button to dom that will trigger the page load
btnLoad = createButton('Load Manga', function(evt) {
loadManga(imp);
this.remove();
}, btnLoadCss);
document.body.appendChild(btnLoad);
return true;
}
});
if(!success) {
log('no implementation for ' + pageUrl, 'error');
}