view soranews-image.user.js @ 96:368035f2213b

Use builtin framework for document ready
author nanaya <me@nanaya.net>
date Fri, 23 Dec 2022 19:14:04 +0900
parents 9c8cde985caf
children 2c4470b73ad9
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// ==UserScript==
// @name         Soranews image fix
// @namespace    https://myconan.net
// @version      1.0.3
// @description  Soranews lazy load image fix
// @author       nanaya
// @match        https://soranews24.com/*
// @grant        none
// @downloadURL  https://hg.myconan.net/ec-userscripts/raw-file/tip/soranews-image.user.js
// ==/UserScript==

;(function () {
  'use strict'

  const fix = function (image) {
    // basic sanity check
    if (!image.classList.contains('lazy')) {
      return
    }

    image.classList.remove('lazy')
    image.removeAttribute('src')
    image.setAttribute('srcset', image.dataset.scoSrcset)
  }

  // loop through passed nodes (or body if called without arguments)
  const run = function (nodes) {
    if (nodes == null) {
      nodes = [document.body]
    }

    for (let i = 0; i < nodes.length; i++) {
      // find all the images inside (and self)
      const images = [nodes[i], ...nodes[i].querySelectorAll('.lazy')]

      for (let j = 0; j < images.length; j++) {
        fix(images[j])
      }
    }
  }

  const onMutate = function (mutations) {
    for (const mutation in mutations) {
      run(mutation.addedNodes)
    }
  }

  // the observer
  const observer = new window.MutationObserver(onMutate)

  // start the observer
  observer.observe(document, { childList: true, subtree: true })
  // initial run on existing document
  run()
}).call()