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Hacker Fresh

Highlights fresh comments on HN.

当前为 2014-12-12 提交的版本，查看 最新版本。

// ==UserScript==
// @name          Hacker Fresh
// @version       0.0.1
// @namespace     http://userscripts.psbarrett.com
// @description	  Highlights fresh comments on HN.
// @include       https://news.ycombinator.com/item*
// @grant         GM_addStyle
// ==/UserScript==
'use strict'

GM_addStyle(
`td.vote-box {
  border-radius: 5px 0px 0px 5px;
}
.fresh-item {
  background-color: #FF944D;
}`);

function get_comment_id(vote_box) {
  var item_link_ele = vote_box.parentElement.querySelector('.comhead > a:nth-child(2)');
  var link = new URL(item_link_ele.href);
  return link.searchParams.get('id');
}

var all_vote_box = document.querySelectorAll('tbody > tr > td[valign=top]');

for (var e of all_vote_box) {
  e.classList.add("vote-box");
  
  var item_id = get_comment_id(e);
  var status = localStorage.getItem(item_id)
  
  if (status === null) {
    e.classList.add("fresh-item");
    localStorage.setItem(item_id, "seen")
  }
}