Raw Source Toggle Dropdown

• Minified Source

ni554n / 1hack Hide COUPONS on Homepage

// ==UserScript==

// @name                1hack Hide COUPONS on Homepage
// @description         [Archived] (Use Account Settings > Notifications > Tags > Muted) Hides [COUPON] & [COUPONS] tagged topics on the onehack.us homepage.
// @version             2.7

// @namespace           io.github.ni554n
// @match               https://onehack.us/
// @run-at              document-idle
// @inject-into         content

// @updateURL           https://openuserjs.org/meta/ni554n/1hack_Hide_COUPONS_on_Homepage.meta.js
// @supportURL          https://github.com/ni554n/userscripts/issues
// @license             MIT

// @author              Nissan Ahmed
// @homepageURL         https://ni554n.github.io/
// @contributionURL     https://paypal.me/ni554n

// ==/UserScript==

/* Migration Notice */

console.log(`
 █████  ████████ ████████ ███████ ███    ██ ████████ ██  ██████  ███    ██ 
██   ██    ██       ██    ██      ████   ██    ██    ██ ██    ██ ████   ██ 
███████    ██       ██    █████   ██ ██  ██    ██    ██ ██    ██ ██ ██  ██ 
██   ██    ██       ██    ██      ██  ██ ██    ██    ██ ██    ██ ██  ██ ██ 
██   ██    ██       ██    ███████ ██   ████    ██    ██  ██████  ██   ████ 
                                                                           
                                                                           
`)

console.log(
`Thanks for using "1hack Hide COUPONS on Homepage" userscript downloaded from OpenUserJS.

You are seeing this message because due to a change introduced in OpenUserJS,
future updates to this script will no longer be vaiable.

If you like to get updates in the future, please open your userscript manager program,
and remove the "1hack Hide COUPONS on Homepage" script.

Then head over to this Github link and install this script again.
https://github.com/ni554n/userscripts/blob/master/.archive/1hack/hide-coupons-on-homepage#installation

It's very easy to do and will take only 3-4 clicks.

Sorry for the inconvenience!`
);


// Filter list on the page load.
hideCoupons([...document.getElementsByClassName("topic-list-item category-free-give-away")]);

/* This section deals with the dynamically loaded topics added to the bottom of the list because of scrolling and
recently updated topics added to the top. */

const tableBody = document.getElementsByClassName("topic-list ember-view")[0].tBodies[0];
let firstTopicBeforeUpdate = tableBody.firstElementChild;
let lastTopicBeforeUpdate = tableBody.lastElementChild;

startNewTopicObserver(new MutationObserver(function (mutationList, tableBodyObserver) {
  // Stop the event listener, because any topic removal will trigger new events.
  stopNewTopicObserver(tableBodyObserver);

  for (const mutation of mutationList) {
    if (mutation.type === 'childList' && mutation.addedNodes.length) {
      if (tableBody.firstElementChild !== firstTopicBeforeUpdate) {
        hideCoupons(filterUpdatedGiveawayCategoryTopics(firstTopicBeforeUpdate.previousElementSibling));
        firstTopicBeforeUpdate = tableBody.firstElementChild;
      } else {
        hideCoupons(filterGiveawayCategoryTopics(lastTopicBeforeUpdate.nextElementSibling)); // First topic from the new update
        lastTopicBeforeUpdate = tableBody.lastElementChild;
      }

      break;
    }
  }

  startNewTopicObserver(tableBodyObserver);
}));

function startNewTopicObserver(observer) {
  observer.observe(tableBody, {childList: true});
}

function stopNewTopicObserver(observer) {
  observer.disconnect();
}

function hideCoupons(topics) {

  for (let i = 0; i < topics.length; i++) {
    const topic = topics[i];
    if (topic.innerText.includes("COUPON")) topic.parentNode.removeChild(topic);
  }
}

/* For filtering items added to the end of the list. */
function filterGiveawayCategoryTopics(startingRow) {
  const giveawayCategoryTopics = [];

  for (let topic = startingRow; topic != null; topic = topic.nextElementSibling) {
    if (topic.matches(".topic-list-item.category-free-give-away")) giveawayCategoryTopics.push(topic);
  }

  return giveawayCategoryTopics;
}

/* For filtering new updated items added to the top of the list. */
function filterUpdatedGiveawayCategoryTopics(bottomRow) {
  const giveawayCategoryTopics = [];

  for (let topic = bottomRow; topic != null; topic = topic.previousElementSibling) {
    if (topic.matches(".topic-list-item.category-free-give-away")) giveawayCategoryTopics.push(topic);
  }

  return giveawayCategoryTopics;
}