adds new useful features for booru-like websites, such as: ad block, back to top button, fast image view etc. works for rule34.xxx, e621.net and more.
As of
// ==UserScript==
// @name Booru+
// @namespace -
// @version 1.0.4
// @description adds new useful features for booru-like websites, such as: ad block, back to top button, fast image view etc. works for rule34.xxx, e621.net and more.
// @author NotYou
// @match *://rule34.xxx/*
// @match *://e621.net/*
// @match *://e926.net/*
// @match *://tbib.org/*
// @match *://gelbooru.com/*
// @match *://danbooru.donmai.us/*
// @match *://hypnohub.net/*
// @match *://xbooru.com/*
// @match *://safebooru.org/*
// @run-at document-end
// @compatible Firefox Version 78
// @compatible Chrome Version 88
// @compatible Edge Version 88
// @compatible Opera Version 74
// @compatible Safari Version 14
// @license GPL-3.0-or-later
// @grant none
// ==/UserScript==
(function() {
let adBlockEnabled = 'true' // change to 'false' if you want to support original website authors
// Image View
let movementSensitivity = 1
let scaleSensitivity = 1
// Selectors
let contentSelector = location.host === 'xbooru.com' ? 'html > body' : '#content, #static-index, #page, #container'
let firstPosts = ':where(.thumb, article.post-preview, .thumbnail-preview):not(:where(:nth-child(3) ~ *))'
let thumbSelector = '.thumb img:not([style*="border"]), .post-preview:not([data-tags*="video"]) img, .thumbnail-preview img'
let navigationSelector = '#subnavbar, #container header, #nav > :last-child'
let tagSelector = '[class*="tag-type"] a:not([href*="://"]), .search-tag'
let paginatorSelector = '#paginator, .paginator'
let pagesSelector = '#paginator a, [class*="tag"] a:nth-last-child(2), .paginator .numbered-page a, .arrow a'
let postListSelector = '#post-list, #c-posts, .thumbnail-container'
// Styling
let accentColor = (function() {
switch(location.host) {
case 'rule34.xxx':
return 'rgb(147, 195, 147)'
case 'e621.net':
case 'e926.net':
return 'rgb(21, 47, 86)'
case 'tbib.org':
case 'gelbooru.com':
case 'danbooru.donmai.us':
case 'safebooru.org':
return 'rgb(7, 115, 251)'
case 'hypnohub.net':
return 'rgb(238, 136, 135)'
case 'xbooru.com':
return 'rgb(122, 89, 30)'
default:
return 'rgb(0, 0, 0)'
}
})()
let css = `
:root {
--accent: ${accentColor};
}
${strToBool(adBlockEnabled) ? `
/* rule34.xxx */
#post-list > :not(:where(.content, .sidebar)),
[src*="${location.origin}/images/"],
[href*="kanako.store"],
#navbar > :nth-last-child(3),
#paginator ~ .horizontalFlexWithMargins,
/* e621.net / e926.net */
#ad-leaderboard,
.adzone,
/* tbib.org / xbooru.com */
iframe[width][height][frameborder="0"],
/* gelbooru.org */
.headerAd,
.exo_wrapper,
.exo-native-widget-outer-container,
.exo-native-widget,
.footerAd, .footerAd2,
main .mainBodyPadding > :where(:first-child, :last-child),
/* hypnohub.net */
#content #right-col .flexi > :not([id]),
#post-list .content > span[data-nosnippet]
{
display: none !important;
}` : ''}
.loading::before {
content: '';
width: 50px;
height: 50px;
display: block;
border-radius: 50%;
border: 10px solid rgb(255, 255, 255);
border-top: var(--accent) 10px solid;
position: fixed;
animation: 1s infinite loading-ani;
left: calc(50% - 25px);
top: calc(50% - 25px);
z-index: 2147483646;
}
.loading {
opacity: 0.65;
}
#backtotop {
position: fixed;
right: 10px;
bottom: 10px;
width: 50px;
height: 50px;
border-radius: 50%;
background-color: rgba(0, 0, 0, .35);
transition: .3s;
}
#backtotop {
cursor: pointer;
}
#backtotop::before {
transform: rotate(45deg);
left: 20px;
top: 20px;
}
#backtotop::after {
transform: rotate(-45deg);
left: 10px;
top: 13px;
}
#backtotop::after, #backtotop::before {
content: '';
display: block;
width: 20px;
height: 8px;
background-color: var(--accent);
position: relative;
border-radius: 10px;
}
.image-view {
position: fixed;
left: 0;
top: 0;
transition: .5s opacity;
width: 100vw;
height: 100vh;
background-color: rgba(0, 0, 0, .7);
z-index: 100;
}
.image-view img {
height: 100%;
position: absolute;
background-color: rgba(0, 0, 0, .1);
}
.image-view div {
position: fixed;
right: 5px;
top: 5px;
width: 50px;
height: 50px;
opacity: .5;
transition: .2s opacity;
background: none;
}
.image-view div:hover {
opacity: 1;
}
.image-view div::before, .image-view div::after {
content: '';
display: block;
width: 100%;
height: 4px;
background-color: rgb(255, 255, 255);
position: absolute;
top: calc(50% - 5px);
border-radius: 10px;
}
.image-view div::before {
transform: rotate(45deg);
}
.image-view div::after {
transform: rotate(-45deg);
}
.blockquote {
padding-left: 15px;
border-left: 5px solid var(--accent);
border-radius: 2px;
}
#tag-view {
position: absolute;
z-index: 50;
background-color: var(--accent);
border-radius: 10px;
padding-top: 20px;
left: 0;
top: 0;
display: flex;
}
#tag-view::before {
content: '';
display: block;
position: absolute;
top: -8px;
z-index: 40;
border-right: transparent 15px;
border-top: transparent 15px;
border-left: var(--accent) 15px;
border-bottom: var(--accent) 7.5px;
border-style: solid;
}
.error-notification-box {
position: fixed;
left: 0;
top: 0;
width: 100vw;
height: 100vh;
z-index: 2147483647;
background: rgba(0, 0, 0, .5);
}
.error-notification-body {
width: 70%;
height: 40%;
background: var(--accent);
position: absolute;
padding: 1em;
left: calc(15% - 1em); /* 15% = 100% - 70% / 2 */
top: calc(30% - 1em); /* 30% = 100% - 40% / 2 */
border-radius: 4px;
}
.error-notification-body h1 {
display: block;
width: 100%;
}
@keyframes loading-ani {
0% { rotate: 0deg }
100% { rotate: 360deg }
}`
let style = document.createElement('style')
style.appendChild(document.createTextNode(css))
document.head.appendChild(style)
init(location.search.includes('s=view') && document.querySelector(pagesSelector))
window.addEventListener('popstate', () => {
replaceBody(location.href)
})
function init(isComms) {
let postList = document.querySelector(postListSelector)
let content = document.querySelector(contentSelector)
let tags = document.querySelectorAll(tagSelector)
let enterTimeout
let show = true
if(tags.length) {
let tagView = document.createElement('div')
tagView.id = 'tag-view'
for (let i = 0; i < tags.length; i++) {
let tag = tags[i]
tag.addEventListener('mouseenter', () => {
show = true
enterTimeout = setTimeout(() => {
let url = tag.href
getDocument(url).then(doc => {
if(show) {
let thumbs = doc.querySelectorAll(firstPosts)
let result = ''
for (let j = 0; j < thumbs.length; j++) {
let thumb = thumbs[j].outerHTML
result += thumb
}
tagView.innerHTML = result
setVisibility(1, tagView)
tagView.style.left = tag.offsetLeft + 'px'
tagView.style.top = tag.offsetTop + tag.offsetHeight + 8 + 'px'
}
})
}, 1e3)
})
tag.addEventListener('mouseleave', () => {
setVisibility(0, tagView)
clearTimeout(enterTimeout)
show = false
})
}
setVisibility(0, tagView)
content.appendChild(tagView)
}
if((location.search.includes('s=list') || matches(/\/posts[^\/]/)) || postList) {
let searchForm = document.querySelector('form[action*="search"]')
if(searchForm) {
searchForm.addEventListener('submit', e => {
e.preventDefault()
let url = location.origin + '/index.php?page=post&s=list&tags=' + searchForm.querySelector('input[name="tags"]').value.replace(/\s/g, '+')
replaceBody(url)
})
}
if(postList) {
fastView()
}
function fastView() {
let fastViewEl = document.createElement('div')
let f_img = document.createElement('img')
let f_close = document.createElement('div')
fastViewEl.className = 'image-view'
setVisibility(0, fastViewEl)
fastViewEl.appendChild(f_img)
fastViewEl.appendChild(f_close)
fastViewEl.addEventListener('contextmenu', e => {
if(e.target !== f_img) {
e.preventDefault()
}
})
postList.addEventListener('contextmenu', e => {
if(e.target.matches(thumbSelector)) {
e.preventDefault()
}
})
postList.addEventListener('auxclick', e => {
if(e.button === 2 && e.which === 3) {
e.preventDefault()
let image = e.target
if(image.matches(thumbSelector)) {
setVisibility(1, fastViewEl)
getDocument(image.closest('a').href).then(doc => {
try {
let _image = doc.querySelector('#image')
f_img.src = _image.poster || _image.src
} catch(_) {
notifyError('cannot get access to image')
}
})
f_img.addEventListener('load', () => {
f_img.style.left = `calc(50% - ${f_img.offsetWidth / 2}px)`
let scale = 1
let x = 0, y = 0
let reTranslate = /translate\(.*?\)/
let reScale = /scale\(.*?\)/
let _y = window.pageYOffset
f_img.addEventListener('mousedown', e => {
e.preventDefault()
window.addEventListener('mousemove', onMouseMove)
})
window.addEventListener('mouseup', () => {
window.removeEventListener('mousemove', onMouseMove)
})
f_img.addEventListener('wheel', e => {
window.scrollTo(window.pageXOffset, _y)
_y = window.pageYOffset
scale = convert(scale, 0.5, 5, 0.1 * scaleSensitivity) // scale - current; 0.5 - minimal; 5 - maximal; 0.1 - difference;
setTransform(reScale, `scale(${scale})`)
function convert(n, min, max, diff) {
return Math.max(min, Math.min(max, (n + (e.deltaY < 0 ? diff : (diff * -1)))))
}
})
function onMouseMove(e) {
x += convert(e.movementX)
y += convert(e.movementY)
setTransform(reTranslate, `translate(${x}px, ${y}px)`)
function convert(value) {
return value / scale * movementSensitivity
}
}
function setTransform(re, prop) {
f_img.style.transform = f_img.style.transform.replace(re, prop)
}
})
}
}
})
let defaultFImgStyle = 'scale(1) translate(0, 0)'
fastViewEl.addEventListener('click', e => {
if(e.target.tagName.toLowerCase() === 'div') {
setVisibility(0, fastViewEl)
f_img.style.transform = defaultFImgStyle
f_img.removeAttribute('src')
}
})
f_img.style.transform = defaultFImgStyle
content.appendChild(fastViewEl)
}
}
if(location.search.includes('s=view')) {
let rightCol = document.querySelector('#right-col, #a-show #content')
let similarPosts = document.createElement('div')
let _tags = Array.from(tags).filter((_, i) => i % 2 !== 0)
let amoutOfTags = Math.floor(Math.sqrt(_tags.length))
let tries = 0
if(rightCol) {
similarPosts.innerHTML = '<h2>You may also like:</h2>'
rightCol.append(similarPosts)
getSimilar()
function getSimilar() {
let _continue = true
let searchUrl = location.host === 'danbooru.donmai.us' ? location.origin + '/posts?tags=' : location.origin + '/index.php?page=post&s=list&tags='
let __tags = 0
_tags.forEach(e => {
if(Math.floor(Math.random() * 2) === 1 && _continue) {
searchUrl += (__tags === 0 ? '' : '+') + e.textContent.replace(/\s/g, '_')
__tags++
if(__tags >= amoutOfTags) {
_continue = false
}
}
})
getDocument(searchUrl).then(doc => {
let posts = doc.querySelectorAll(firstPosts+`:not([id*="${new URLSearchParams(location.search).get('id')}"])`)
let _posts = ''
tries++
posts.forEach(e => {
_posts += e.innerHTML
})
similarPosts.innerHTML += _posts
if(posts === '' && tries < 3) {
getSimilar()
} else if (_posts === '') {
similarPosts.innerHTML = '<h1>Not Found Similar Posts</h1>'
}
})
}
}
let commentList = document.querySelector('#comment-list, .mainBodyPadding')
if(commentList && commentList.children.length > 1) {
let comments = commentList.querySelectorAll('br ~ [id^="c"], h2 + br ~ div')
for (let i = 0; i < comments.length; i++) {
let comment = comments[i]
if(comment.matches(':not([style])')) {
let commentText = comment.querySelector('.col2, .comment-right-col') || comment.querySelector('.commentBody br + br').nextSibling
let commentActualText = commentText.textContent.replace(/\\n/g, '').trim()
let prevComment = comment
let j = 0
if(commentActualText.startsWith('^')) {
let col2 = prevComment.querySelector('.col2')
while(commentActualText[j++] === '^') {
prevComment = prevComment.previousElementSibling
}
col2 = prevComment.querySelector('.col2')
if(col2) {
commentText.innerHTML = `<div class="blockquote">${col2.innerHTML}</div>` + commentText.textContent.replace(/\^/g, '')
}
}
}
}
}
}
backToTop()
function matches(re) {
return re.test(location.href)
}
function backToTop() {
let backtotop = document.createElement('div')
backtotop.id = 'backtotop'
setVisibility(0, backtotop)
window.addEventListener('scroll', () => {
if(window.pageYOffset > 0) {
setVisibility(1, backtotop)
} else {
setVisibility(0, backtotop)
}
})
backtotop.addEventListener('click', () => {
document.body.scrollIntoView({
block: 'start',
behavior: 'smooth'
})
})
content.appendChild(backtotop)
}
function setVisibility(n, el) {
if(n === 1) {
el.style.opacity = '1'
el.style.pointerEvents = 'auto'
} else {
el.style.opacity = '0'
el.style.pointerEvents = 'none'
}
}
initPagesEvs(isComms)
}
function getStyles(el) {
return window.getComputedStyle(el)
}
function initPagesEvs(isComms) {
let pages = document.querySelectorAll(pagesSelector)
for (let i = 0; i < pages.length; i++) {
pages[i].onclick = e => {
e.preventDefault()
let target = e.target
let url = target.getAttribute('onclick') && isComms ? location.pathname+target.getAttribute('onclick').match(/'(.*?)'/)[1] : target.href
target.onclick = null
replaceBody(url, isComms)
}
}
}
function replaceBody(url, isComms) {
let content = document.querySelector(contentSelector)
if(content) {
content.classList.add('loading')
}
getDocument(url).then(doc => {
let htmlEl = document.documentElement
let scrollToEl = isComms ? document.querySelector('.image-sublinks, .response-list') ?? htmlEl : htmlEl
let hiddenImages = doc.querySelectorAll('img[data-cfsrc]')
if(hiddenImages) {
for (let i = 0; i < hiddenImages.length; i++) {
let hiddenImage = hiddenImages[i]
hiddenImage.style.cssText = ''
hiddenImage.src = hiddenImage.dataset.cfsrc
}
}
content.innerHTML = doc.querySelector(contentSelector).innerHTML
scrollToEl.scrollIntoView()
content.classList.remove('loading')
history.pushState('', '', '?'+url.split('?')[1])
document.title = doc.title
let autocomplete = window.autocomplete_setup
if(autocomplete) {
autocomplete()
}
let paginator = document.querySelector(paginatorSelector)
let _paginator = doc.querySelector(paginatorSelector)
if(paginator) {
paginator.innerHTML = (_paginator || paginator).innerHTML
}
init(isComms)
}).catch(expection => {
let timeout = 1e4
notifyError(expection, timeout)
setTimeout(() => {
location.replace(url)
}, timeout)
})
}
function notifyError(body, time) {
let notify = document.createElement('div')
let notifBody = document.createElement('div')
notify.className = 'error-notification-box'
notifBody.className = 'error-notification-body'
notifBody.innerHTML = '<h1>Rule34+</h1>Hey! Looks like you just got error, probably that\'s reason: "' + body + '"!, you got do a report about problem <a target="_blank" href="//greasyfork.org/scripts/456048/feedback">here</a>.'
if(time) {
notifBody.innerHTML += ' You will be redirected in ' + time / 1e3 + ' seconds.'
}
notify.appendChild(notifBody)
document.body.appendChild(notify)
}
function getDocument(url) {
return fetch(url).then(r => r.text()).then(c => new DOMParser().parseFromString(c, 'text/html'))
}
function strToBool(str) {
return str === 'fasle' ? false : true
}
})()