hacker news - scroll to next most outer post

14/02/2025, 4:56:16 pm

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name        hacker news - scroll to next most outer post
// @namespace   Violentmonkey Scripts
// @match       https://news.ycombinator.com/item*
// @grant       none
// @version     1.0
// @license MIT
// @author      -
// @require https://cdn.jsdelivr.net/npm/@violentmonkey/shortcut@1
// @description 14/02/2025, 4:56:16 pm
// ==/UserScript==

const { register } = VM.shortcut;

const viewportHeight = window.innerHeight
const outerMostCommentElements = Array.from(document.querySelectorAll(".comment-tree>tbody>tr:has(td[indent='0'])"))

VM.shortcut.register('n', () => {
  if(document.activeElement.type === 'textarea'){
    // Is this hackey? maybe.
    document.activeElement.value+="n"
    return
  }


  const scrollY = window.scrollY || window.pageYOffset;
  const buffer = 50; // Buffer for invisible padding

    // Find the next element below viewport
  const nextElement = outerMostCommentElements.find(elem => {
    const elemTop = elem.getBoundingClientRect().top;
    return elemTop >= (viewportHeight - buffer);
  });

  if (nextElement) {
    nextElement.scrollIntoView({ behavior: "smooth", block: "center" });
  }

  // else {
  //   // If no next element found, scroll to the last element
  //   const lastElement = outerMostCommentElements[outerMostCommentElements.length - 1];
  //   if (lastElement && lastElement.getBoundingClientRect().top < (viewportHeight - buffer)) {
  //     lastElement.scrollIntoView({ behavior: "smooth", block: "center" });
  //   }
  // }

//   for (const elem of outerMostCommentElements){
//     const elemYPosition = elem.getBoundingClientRect().top
//     // -50 to give it a bit of a buffer as there is invisible padding and stuff.
//     const elemIsBelowBottomViewport = elemYPosition >= (document.body.scrollTop + (viewportHeight - 50))

//     console.log(elemIsBelowBottomViewport)
//     console.log(elem.getAttribute("id"))

//     if(elemIsBelowBottomViewport){
//       elem.scrollIntoView({behavior:"smooth", block:"center"})
//       break
//     }
//   }

});