show-titles.user.js

// ==UserScript==
// @name         show titles
// @namespace    https://gist.github.com/chadlavi/d4e0cf8af2d4f40bd0704fa61138acf0/raw/show-titles.user.js
// @downloadURL  https://gist.github.com/chadlavi/d4e0cf8af2d4f40bd0704fa61138acf0/raw/show-titles.user.js
// @updateURL
// @version      1.1
// @description  show the titles of older and newer entries
// @author       Chad Lavimoniere
// @include      http://6.f*.org/file/view/*
// @grant        none
// ==/UserScript==

function oldTitle () {
    titleOld=strip(this.responseText.match(/.*<h1>.*/g)+'');
    //console.log(titleOld);

    x=document.getElementsByClassName("older");
    for(var i = 0; i < x.length; i++){
        x[i].innerText="‹ older ("+titleOld+")";
    };
}

function newTitle () {
    titleNew=strip(this.responseText.match(/.*<h1>.*/g)+'');
    //console.log(titleNew);

    y=document.getElementsByClassName("newer");
    for(var i = 0; i < y.length; i++){
        y[i].innerText="| ("+titleNew+") newer ›";
    };

}function strip(html)
{
    var tmp = document.createElement("DIV");
    tmp.innerHTML = html;
    return tmp.textContent || tmp.innerText;
}

var oReq = new XMLHttpRequest();
oReq.addEventListener("load", oldTitle);
var oReq2 = new XMLHttpRequest();
oReq2.addEventListener("load", newTitle);
var thisUrl=document.location+'';
thisUrl=thisUrl.substring(0,thisUrl.lastIndexOf("/")).split('#')[0];
var page=parseInt(thisUrl.substring(thisUrl.lastIndexOf("/") +1),10);
var oldPage=page-1;
var newPage=page+1;
var preUrl=thisUrl.substring(0,thisUrl.lastIndexOf("/")+1).split('#')[0];
var oldUrl=preUrl+oldPage;
var newUrl=preUrl+newPage;

oReq.open("GET", oldUrl);
oReq.send();
oReq2.open("GET", newUrl);
oReq2.send();