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annotate pixiv-fanbox-unlazy.user.js @ 127:a701294f38ff

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More reliable state handling
author nanaya <me@nanaya.net>
date Sat, 21 Jan 2023 03:15:26 +0900
parents 8de2d53a4cb1
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1 // ==UserScript==
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2 // @name pixiv fanbox no lazy loading image
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3 // @namespace https://nanaya.net
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4 // @version 2.1.2
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5 // @description Lazy loading is bad for environment. Disable it.
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6 // @author nanaya
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7 // @match https://*.fanbox.cc/*
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8 // @grant none
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9 // @run-at document-start
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10 // @downloadURL https://hg.nanaya.net/ec-userscripts/raw-file/tip/pixiv-fanbox-unlazy.user.js
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11 // ==/UserScript==
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12
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13 'use strict';
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14
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15 const imageUrlPrefix = 'https://downloads.fanbox.cc/images/post/';
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16
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17 function disableEventLink (event) {
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18 event.stopPropagation();
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19 }
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20
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21 function fix (link) {
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22 const href = link.href;
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23
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24 // basic sanity check
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25 if (typeof href !== 'string' || !href.startsWith(imageUrlPrefix)) {
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26 return;
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27 }
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29 // don't run again if already run on passed link
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30 if (link._ecUserscript) {
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31 return;
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32 }
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33 link._ecUserscript = true;
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34
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35 link.addEventListener('click', disableEventLink);
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36 const image = document.createElement('img');
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37 image.style.width = '100%';
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38 image.src = href;
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39 link.replaceChildren(image);
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40 }
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42 function run (node) {
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43 if (!(node instanceof window.HTMLElement)) return;
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45 fix(node);
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46 for (const link of node.querySelectorAll(`[href^="${imageUrlPrefix}"]`)) {
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47 fix(link);
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48 }
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49 }
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51 function onMutate (mutations) {
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52 for (const mutation of mutations) {
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53 for (const node of mutation.addedNodes) {
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54 run(node);
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55 }
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56 }
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57 }
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59 const observer = new window.MutationObserver(onMutate);
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60 observer.observe(document, { childList: true, subtree: true });
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61 run(document.body);