FOK!Rust

Verbergt MikeyTT-reacties en quotes op FOK!.
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// ==UserScript==
// @name         FOK!Rust
// @namespace    https://forum.fok.nl/
// @version      1.3.1
// @description  Verbergt MikeyTT-reacties en quotes op FOK!.
// @match        *://forum.fok.nl/*
// @run-at       document-end
// @noframes
// @grant        none
// @license MIT
// ==/UserScript==

(function () {
  "use strict";

  var BLOCKED_USER = "mikeytt";
  var HIDDEN_ATTRIBUTE = "data-fok-rust-hidden";
  var POST_SELECTOR = ".post[data-member], .post [data-member][data-postid]";
  var observer = null;

  function normalizeUserName(value) {
    return String(value || "").replace(/^\s+|\s+$/g, "").toLowerCase();
  }

  function isBlockedName(value) {
    return normalizeUserName(value) === BLOCKED_USER;
  }

  function matchesSelector(element, selector) {
    var matches = element.matches
      || element.msMatchesSelector
      || element.webkitMatchesSelector;

    return matches ? matches.call(element, selector) : false;
  }

  function closestByClass(element, className) {
    while (element && element.nodeType === 1) {
      if ((" " + element.className + " ").indexOf(" " + className + " ") !== -1) {
        return element;
      }

      element = element.parentNode;
    }

    return null;
  }

  function getPostElement(element) {
    if ((" " + element.className + " ").indexOf(" post ") !== -1) {
      return element;
    }

    return closestByClass(element, "post");
  }

  function getMemberName(post) {
    var nested = post.querySelector("[data-member][data-postid]");
    return post.getAttribute("data-member")
      || (nested ? nested.getAttribute("data-member") : "")
      || "";
  }

  function getPostContent(post) {
    return post.querySelector(".postmain_right.contents");
  }

  function getQuotedMemberNames(post) {
    var content = getPostContent(post);
    var quotedMembers = [];
    var blockquotes;
    var boldTexts;
    var profileLinks;
    var blockquoteIndex;
    var boldIndex;
    var linkIndex;
    var boldText;
    var match;

    if (!content) {
      return quotedMembers;
    }

    blockquotes = content.querySelectorAll("blockquote");

    for (blockquoteIndex = 0; blockquoteIndex < blockquotes.length; blockquoteIndex += 1) {
      boldTexts = blockquotes[blockquoteIndex].querySelectorAll("b");

      for (boldIndex = 0; boldIndex < boldTexts.length; boldIndex += 1) {
        boldText = boldTexts[boldIndex];
        profileLinks = boldText.querySelectorAll('a[href*="/user/profile/"]');

        for (linkIndex = 0; linkIndex < profileLinks.length; linkIndex += 1) {
          quotedMembers.push(profileLinks[linkIndex].textContent);
        }

        match = boldText.textContent.match(/\bschreef\s+(.+?)\s+het volgende:/i);
        if (match) {
          quotedMembers.push(match[1]);
        }
      }
    }

    return quotedMembers;
  }

  function hasBlockedQuote(post) {
    var quotedMembers = getQuotedMemberNames(post);
    var i;

    for (i = 0; i < quotedMembers.length; i += 1) {
      if (isBlockedName(quotedMembers[i])) {
        return true;
      }
    }

    return false;
  }

  function hideElement(element) {
    element.setAttribute(HIDDEN_ATTRIBUTE, "true");
    element.style.setProperty("display", "none", "important");
  }

  function processPost(post) {
    if (isBlockedName(getMemberName(post)) || hasBlockedQuote(post)) {
      hideElement(post);
    }
  }

  function pushUnique(items, item) {
    if (item && items.indexOf(item) === -1) {
      items.push(item);
    }
  }

  function findPosts(root) {
    var matches = [];
    var elements;
    var i;
    var post;

    if (root && root.nodeType === 1 && matchesSelector(root, POST_SELECTOR)) {
      pushUnique(matches, getPostElement(root));
    }

    if (root && root.querySelectorAll) {
      elements = root.querySelectorAll(POST_SELECTOR);

      for (i = 0; i < elements.length; i += 1) {
        post = getPostElement(elements[i]);
        pushUnique(matches, post);
      }
    }

    return matches;
  }

  function applyBlockList(root) {
    var posts = findPosts(root || document);
    var i;

    for (i = 0; i < posts.length; i += 1) {
      processPost(posts[i]);
    }
  }

  function startObserver() {
    if (observer || typeof MutationObserver === "undefined") {
      return;
    }

    observer = new MutationObserver(function (mutations) {
      var mutationIndex;
      var nodeIndex;
      var addedNodes;

      for (mutationIndex = 0; mutationIndex < mutations.length; mutationIndex += 1) {
        addedNodes = mutations[mutationIndex].addedNodes;

        for (nodeIndex = 0; nodeIndex < addedNodes.length; nodeIndex += 1) {
          applyBlockList(addedNodes[nodeIndex]);
        }
      }
    });

    observer.observe(document.documentElement, {
      childList: true,
      subtree: true
    });
  }

  function init() {
    if (!document.body) {
      window.setTimeout(init, 50);
      return;
    }

    applyBlockList(document);
    startObserver();
  }

  try {
    init();
  } catch (error) {
    console.error("FOK!Rust kon niet starten.", error);
  }
})();