replace-fonts

Replace all fonts by preferred ones.

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         replace-fonts
// @namespace    http://tampermonkey.net/
// @version      202312190930
// @description  Replace all fonts by preferred ones.
// @author       Rafael David Tinoco
// @match        http*://*/*
// @run-at       document-start
// @grant        none
// ==/UserScript==

;(function () {
  'use strict'

  var fontsToOpenSans = [
    'Calibri',
    'Cambria',
    'Candara',
    'Constantia',
    'Corbel',
    'Georgia',
    'Segoe UI',
    'Trebuchet MS',
    'Verdana',
    'sans',
    'sans-serif',
    'serif',
    'Avenir',
    'Avenir Next',
    'Comic Sans MS',
    'Comic Sans',
    'Lucida Grande',
    'Lucida Sans',
    'Roboto'
  ]
  var fontsToCousine = [
    'Monospace',
    'Noto Mono',
    'Consolas',
    'Courier New',
    'Courier',
    'Monaco',
    'Menlo',
    'Fira Mono',
    'Liberation Mono',
    'Roboto Mono'
  ]
  var fontsToLiberationSans = [
    'Arial',
    'Times New Roman',
    'Arial Narrow',
    'Tahoma',
    'Helvetica',
    'Helvetica Neue',
    'San Francisco',
    'Fira Sans',
    'Noto Sans'
  ]

  function adjustElementStyles (node) {
    let fontFamily = window
      .getComputedStyle(node)
      .fontFamily.replace(/["']/g, '')
    let site = window.location.hostname

    fontFamily.split(',').some(font => {
      if (fontsToOpenSans.includes(font.trim())) {
        node.style.fontFamily = '"Open Sans", sans-serif'
        return true
      } else if (fontsToCousine.includes(font.trim())) {
        node.style.fontFamily = 'Cousine, monospace'
        return true
      } else if (fontsToLiberationSans.includes(font.trim())) {
        node.style.fontFamily = '"Liberation Sans", sans-serif'
        return true
      }
      return false
    })
  }

  function observeDOMChanges () {
    const observer = new MutationObserver(mutations => {
      mutations.forEach(mutation => {
        mutation.addedNodes.forEach(node => {
          if (node.nodeType === Node.ELEMENT_NODE) {
            adjustElementStyles(node)
            node.querySelectorAll('*').forEach(adjustElementStyles)
          }
        })
      })
    })
    observer.observe(document, { childList: true, subtree: true })
  }

  window.addEventListener('load', () => {
    document.querySelectorAll('*').forEach(adjustElementStyles)
    observeDOMChanges()
  })

  document.addEventListener('DOMContentLoaded', () => {
    document.querySelectorAll('*').forEach(adjustElementStyles)
  })
})()