Warmmiete in Suche immowelt

warmmiete_immowelt.user.js

// ==UserScript==
// @name        Warmmiete in Suche immowelt
// @namespace   kch42
// @include     http://www.immowelt.de/immobilien/immoliste.aspx*
// @version     1
// @grant       none
// ==/UserScript==

function mkinfoelem(label, data) {
  var info = document.createElement("div");
  info.appendChild(document.createTextNode(data));
  var labeldiv = document.createElement("div");
  labeldiv.appendChild(document.createTextNode(label));
  labeldiv.classList.add("hardfactlabel");
  info.appendChild(labeldiv);
  info.classList.add("hardfact");
  return info;
}

function procres(sr) {
  if (sr.classList.contains("warmmiete-adder-processed")) {
    return;
  }
  sr.classList.add("warmmiete-adder-processed");
  
  var href = null;
  var links = sr.querySelectorAll("a[href]");
  for (var i = 0; i < links.length; i++) {
    var _href = links[i].getAttribute("href");
    if (_href.match(/\/expose\//)) {
      href = _href;
      break;
    }
  }
  if (!href) {
    return;
  }
  
  var req = new XMLHttpRequest();
  req.addEventListener("load", function() {
    var doc = this.responseXML;
    var datarows = doc.querySelectorAll(".datarow");
    for (var i = 0; i < datarows.length; i++) {
      var label = datarows[i].querySelector(".label").textContent;
      var data = datarows[i].querySelector(".data").textContent;
      if (
        !label.match(/warmmiete|gesamtmiete/i) ||
        label.match(/in\s+(warmmiete|gesamtmiete)\s+enthalten/i)
      ) {
        continue;
      }
      
      var info = mkinfoelem(label, data);
      
      var firsthardfact = sr.querySelector(".hardfact");
      firsthardfact.parentNode.insertBefore(info, firsthardfact);
      
      break;
    }
  });
  req.open("GET", href);
  req.responseType = "document";
  req.send();
}

var search_results = document.querySelectorAll("div.divObject");
for (var i = 0; i < search_results.length; i++) {
  procres(search_results[i]);
}