Adds a gallery mode and title to customBoardList.
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// ==UserScript==
// @name 4chan Gallery
// @version 1.0.3
// @description Adds a gallery mode and title to customBoardList.
// @include *://boards.4chan.org/*
// @namespace https://greasyfork.org/users/3159
// ==/UserScript==
function s(q){var b = document.getElementById(q);return b}
setTimeout(function(){
var boardname = document.getElementsByClassName('boardTitle')[0].innerHTML.split('/ - ')[1];
var boardlink = document.location.href.split('thread/')[0];
var cb = document.getElementsByClassName('customBoardList'),a = 0;
cb[0].insertAdjacentHTML('afterbegin','[<a href="' + boardlink + '">' + boardname + '</a>] ');
cb[1].insertAdjacentHTML('afterbegin','[<a href="' + boardlink + '">' + boardname + '</a>] ');
if (document.location.href.indexOf('/thread/') > 0){
cb[0].insertAdjacentHTML('beforeend','[<a id="glink" href="#">Gallery</a>]');
cb[1].insertAdjacentHTML('beforeend','[<a id="glink2" href="#">Gallery</a>]');
s("glink").onclick=function(){view()};
s("glink2").onclick=function(){view()};
s('bottom').insertAdjacentHTML('afterend','<div id="bg" style="opacity:0.9;position:fixed;top:0;left:0;z-index:9999;background-color:black;width:100%;height:100%;display:none"></div><div id="inner""></div>');
var imgs = document.getElementsByClassName('fileThumb');
var arw = 'position:absolute;z-index:10000;top:calc(50% - 30px);border-top: 15px solid transparent;border-bottom: 15px solid transparent;display:none;'
s('inner').insertAdjacentHTML('afterend','<div id="larrow" style="' + arw + 'border-right: 20px solid #bababa;left:5px"></div>');
s('inner').insertAdjacentHTML('afterend','<div id="rarrow" style="' + arw + 'border-left: 20px solid #bababa;right:5px"></div>');
s('larrow').onclick=function(){if(a>0){a--;s('inner').children[0].src = imgs[a].getAttribute('href');nbr()}};
s('rarrow').onclick=function(){if(a<(imgs.length-1)){a++;s('inner').children[0].src = imgs[a].getAttribute('href');nbr()}};
s('larrow').insertAdjacentHTML('afterend','<p id="n" style="color:white;margin:0;position:absolute;bottom:0;right:0;z-index:10000;display:none">[' + (a+1) + '/' + imgs.length + ']</p>');
s('bg').onclick=function(){this.style.display = 'none';s('inner').style.display = 'none';s('larrow').style.display = 'none';s('rarrow').style.display = 'none';s('n').style.display = 'none'};
function view(){
s('bg').style.display = 'block';
s('inner').style.display = 'block';
s('larrow').style.display = 'block';
s('rarrow').style.display = 'block';
s('n').style.display = 'block';
if (a<1){
var img = new Image();
img.style.cssText="position:absolute;z-index:10000;max-height:calc(100% - 40px);max-width:calc(100% - 60px);top:0;bottom:0;margin-top:auto;margin-bottom:auto;margin-left:auto;margin-right:auto;left:0;right:0";
img.src = imgs[0].getAttribute('href');
img.onclick = function(){
if (a < (imgs.length - 1)){
a++;
img.src = imgs[a].getAttribute('href');
nbr();
}
}
s('inner').appendChild(img);
}
}
function nbr(){
s('n').innerHTML = '[' + (a+1) + '/' + imgs.length + ']';
}
}
}, 1000);