HN Skins

Read HN in style!

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

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

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

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

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

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.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name        HN Skins
// @version     0.3.0
// @description Read HN in style!
// @author      Susam Pal
// @match       https://news.ycombinator.com/*
// @namespace   susam
// @license     MIT
// ==/UserScript==
(function () {
  const skins = {
    Cafe: skCafe,
    Courier: skCourier,
    London: skLondon,
    Midnight: skMidnight,
    Terminal: skTerminal,
    None: null
  }

  function skCafe () {
    const style = document.createElement('style')
    style.className = 'skStyle skCafe'
    style.textContent = `
      body {
        background: #ffe;
      }
      * a:visited {
        color: #754 !important;
      }
      td[bgcolor] *, * a:link, td, span, div, font, input, textarea {
        color: #400 !important;
      }
      .c5A, .c73 {
        color: #633 !important;
      }
      .c88, .c9C {
        color: #966 !important;
      }
      .cBE, .cDD {
        color: #c99 !important;
      }
      td[bgcolor] {
        background: #fa3;
      }
      table#hnmain {
        background: #fec;
      }
      td[bgcolor] * {
        color: #000 !important;
      }
      td, span, div, font, input, textarea {
        font-family: monospace, monospace !important;
      }
      input, textarea {
        background: #fc9;
      }
      .hnuser font { /* green user */
        color: #060 !important;
      }
      .topsel {
        font-weight: bold;
      }
    `
    spacingStyle()
    window.document.head.append(style)
  }

  function skCourier () {
    const style = document.createElement('style')
    style.className = 'skStyle skCourier'
    style.textContent = `
      * a:visited {
        color: #666 !important;
      }
      td[bgcolor] *, * a:link, td, span, div, font, input, textarea {
        color: #000 !important;
      }
      .c5A, .c73 {
        color: #666 !important;
      }
      .c88, .c9C {
        color: #999 !important;
      }
      .cBE, .cDD {
        color: #ccc !important;
      }
      td[bgcolor] {
        background: #eee;
        border: thin solid #666;
      }
      table#hnmain {
        background: #fff;
      }
      td[bgcolor] * {
        color: #000 !important;
      }
      td, span, div, font, input, textarea {
        font-family: courier, monospace !important;
      }
      img {
        filter: saturate(0);
      }
      .hnuser font { /* green user */
        color: #060;
      }
      .topsel {
        font-weight: bold;
      }
    `
    spacingStyle()
    window.document.head.append(style)
  }

  function skLondon () {
    const style = document.createElement('style')
    style.className = 'skStyle skLondon'
    style.textContent = `
      body {
        background: #eee;
      }
      * a:visited {
        color: #666 !important;
      }
      td[bgcolor] *, * a:link, td, span, div, font, input, textarea {
        color: #000 !important;
      }
      .c5A, .c73 {
        color: #666 !important;
      }
      .c88, .c9C {
        color: #999 !important;
      }
      .cBE, .cDD {
        color: #ccc !important;
      }
      td[bgcolor] {
        background: #333;
      }
      td[bgcolor] * {
        color: #fff !important;
      }
      table#hnmain {
        background: #fff;
      }
      td, span, div, font, input, textarea {
        font-family: georgia, times, serif !important;
        font-size: large !important;
        color: #000;
      }
      img {
        filter: saturate(0);
        margin-right: 0.5em;
      }
      .topsel {
        font-weight: bold;
      }
      .hnuser font { /* green user */
        color: #060;
      }
    `
    spacingStyle()
    window.document.head.append(style)
  }

  function skMidnight () {
    const style = document.createElement('style')
    style.className = 'skStyle skMidnight'
    style.textContent = `
      body {
        background: #111;
      }
      * a:visited {
        color: #888 !important;
      }
      td[bgcolor] *, * a:link, td, span, div, font, input, textarea {
        color: #ccc !important;
      }
      .c5A, .c73 {
        color: #999 !important;
      }
      .c88, .c9C {
        color: #666 !important;
      }
      .cBE, .cDD {
        color: #333 !important;
      }
      td[bgcolor] {
        background: #333;
      }
      table#hnmain {
        background: #000;
      }
      img {
        filter: saturate(0);
      }
      input, textarea {
        background: #000;
      }
      .hnuser font { /* green user */
        color: #3c3 !important;
      }
      .topsel {
        font-weight: bold;
      }
    `
    spacingStyle()
    window.document.head.append(style)
  }

  function skTerminal () {
    const style = document.createElement('style')
    style.className = 'skStyle skTerminal'
    style.textContent = `
      body {
        background: #020;
      }
      * a:visited {
        color: #0b0 !important;
      }
      td[bgcolor] *, * a:link, td, span, div, font, input, textarea {
        color: #3f3 !important;
      }
      .c5A, .c73 {
        color: #3c3 !important;
      }
      .c88, .c9C {
        color: #393 !important;
      }
      .cBE, .cDD {
        color: #363 !important;
      }
      td[bgcolor] {
        background: #030;
      }
      table#hnmain {
        background: #010;
      }
      td, span, div, font, input, textarea {
        font-family: monospace, monospace !important;
      }
      img {
        filter: hue-rotate(75deg);;
      }
      input, textarea {
        background: #000;
      }
      .hnuser font { /* green user */
        color: #f9f !important;
      }
      .topsel {
        font-weight: bold;
      }
      .votearrow {
        filter: sepia(1) hue-rotate(90deg) saturate(3);
      }
    `
    spacingStyle()
    window.document.head.append(style)
  }

  function spacingStyle () {
    const style = document.createElement('style')
    style.className = 'skStyle spacing'
    style.textContent = `
      .spacer {
        height: 1.25em !important;
      }
      td, span, div, font, input, textarea {
        font-size: medium !important;
      }
      p {
        margin: 1em 0 !important;
      }
      .pagetop {
        line-height: 1.5em;
      }
      .pagetop b {
        margin-right: 1em;
      }
      .subtext {
        padding-top: 0.5em;
      }
      .toptext {
        padding-top: 0.5em;
      }
      .toptext, .comment {
        line-height: 1.5em;
      }
      .reply p {
        margin-bottom: 0.5em !important;
      }
      #bigbox > td {
        padding-top: 0.5em;
      }
    `
    window.document.head.append(style)
  }

  function dialogStyle () {
    const style = document.createElement('style')
    style.className = 'skStyle dialog'
    style.textContent = `
      dialog {
        background: #fec;
        border: thick double #653;
        padding: 1.5em;
      }
      dialog * {
        color: #431;
        font-family: courier, monospace;
        font-size: medium;
      }
      dialog h1 {
        font-size: 1.5em;
        margin: 0;
        text-align: center;
      }
      dialog button {
        font-family: courier, monospace;
        font-size: medium;
        display: block;
        margin: 0 auto;
        min-width: 10em;
        background: #edb;
        padding: 0.25em;
      }
      dialog button:active {
        background: #cb9;
      }
      #skinOptions {
        display: grid;
        grid-template-columns: 1fr 1fr;
        grid-template-rows: repeat(3, auto);
        grid-auto-flow: column;
        gap: 1em 2em;
        margin: 1.5em 0;
      }
    `
    window.document.head.append(style)
  }

  function loadSkin () {
    for (const style of document.querySelectorAll('.skStyle')) {
      style.remove()
    }
    const name = window.localStorage.getItem('hnskin')
    console.log('Last saved skin:', name)
    if (name === null || skins[name] === null || skins[name] === undefined) {
      console.log('Forgetting invalid skin:', name)
      window.localStorage.removeItem('hnskin')
    } else {
      console.log('Loading skin:', name)
      skins[name]()
    }
    dialogStyle()
  }

  function handleRadio (e) {
    const name = e.target.value
    if (name === 'None') {
      window.localStorage.removeItem('hnskin')
    } else {
      window.localStorage.setItem('hnskin', name)
    }
    loadSkin()
  }

  function effectiveSkinName () {
    return window.localStorage.getItem('hnskin') || 'None'
  }

  function initDialog () {
    const dialog = document.createElement('dialog')
    dialog.id = 'dialog'
    document.body.append(dialog)

    const h1 = document.createElement('h1')
    h1.textContent = 'Select Skin'
    dialog.append(h1)

    const form = document.createElement('form')
    form.method = 'dialog'
    dialog.append(form)

    const divOptions = document.createElement('div')
    divOptions.id = 'skinOptions'
    form.append(divOptions)

    for (const key of Object.keys(skins)) {
      const div = document.createElement('div')
      divOptions.append(div)

      const input = document.createElement('input')
      input.id = 'sk' + key
      input.type = 'radio'
      input.name = 'skin'
      input.value = key
      input.checked = effectiveSkinName() === key
      input.addEventListener('change', handleRadio)
      div.append(input)

      const label = document.createElement('label')
      label.htmlFor = 'sk' + key
      label.textContent = key
      div.append(label)
    }

    const button = document.createElement('button')
    button.textContent = 'Close'
    form.append(button)
  }

  function showDialog (e) {
    e.preventDefault()
    const dialog = document.getElementById('dialog')
    dialog.showModal()
  }

  function init () {
    if (document.getElementById('skinOptions')) {
      return
    }

    initDialog()

    const top = document.querySelector('.pagetop')
    if (top !== null) {
      const anchor = document.createElement('a')
      anchor.href = '#'
      anchor.textContent = 'skins'
      anchor.addEventListener('click', showDialog)
      top.append(' | ', anchor)
    }
    loadSkin()
  }

  init()
})()