To syntax highlight GreasyFork Code by PrismJS
Per
// ==UserScript==
// @name GreasyFork Code: Syntax Highlight by PrismJS
// @namespace Violentmonkey Scripts
// @grant none
// @version 0.4.4
// @author CY Fung
// @description To syntax highlight GreasyFork Code by PrismJS
// @run-at document-start
// @inject-into page
// @unwrap
// @license MIT
// @match https://greasyfork.org/*
// @match https://sleazyfork.org/*
//
// ==/UserScript==
(() => {
const USE_SHADOW_MODE = true; // performance fix for long coding
const cdn = 'https://cdnjs.cloudflare.com/ajax/libs/prism/1.29.0';
const resoruces = {
'prism-core.js': `${cdn}/components/prism-core.js`,
'prism-clike.js': `${cdn}/components/prism-clike.min.js`,
'prism-javascript.js': `${cdn}/components/prism-javascript.min.js`,
'prism-css.js': `${cdn}/components/prism-css.min.js`,
'prism-stylus.js': `${cdn}/components/prism-stylus.min.js`,
'prism.css': `${cdn}/themes/prism.min.css`,
'prism-dark.css': `${cdn}/themes/prism-dark.min.css`,
}
const doActionCSS = () => `
.code-container, .code-container-shadow{
height:100vh;
}
.code-container .CodeMirror, .code-container textarea{
height:100%;
}
`;
const global_css = () =>`
html {
line-height: 1.5;
-webkit-text-size-adjust: 100%;
-moz-tab-size: 4;
-o-tab-size: 4;
tab-size: 4;
font-family: ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji;
font-feature-settings: normal;
font-variation-settings: normal
}
.code-container code, .code-container kbd, .code-container pre, .code-container samp,
.code-container-pre, .code-container-pre code, .code-container-pre pre {
font-family: ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;
font-size: 1em
}
#script-content > .code-container[class] {
width: 100%;
}
.code-container[class], .code-container-shadow[class] {
border-radius: 0;
}
.code-container > pre:only-child, .code-container-pre{
padding:0;
}
pre.code-container-pre[class]{
padding: 0;
border: 0;
margin: 0;
}
code.syntax-highlighted[class] {
font-family: monospace;
font-size: 13px;
font-variant-ligatures: contextual;
line-height: 1.15rem;
text-shadow: none !important;
}
.hljs-comment[class], .hljs-quote[class] {
font-style: inherit;
color: #259789;
}
.hljs-add-marker-width .marker-fixed-width[class] {
user-select: none !important;
width: calc(var(--hljs-marker-width, 0em) + 16px);
background: var(--marker-color-background, #f4f4f4);
padding-right: 6px;
margin-right: 4px;
contain: paint style;
color: var(--marker-color-text, inherit);
}
.marker-fixed-width[marker-text]::before {
content:attr(marker-text);
}
`;
const cssForCodePage = () => /\/scripts\/\d+[^\s\/\\]*\/code(\/|$)/.test(location.href) ? `
html:not([dkkfv]) div.code-container {
display:none;
}
.code-container,
.code-container pre:only-child,
.code-container pre:only-child code:only-child,
.code-container-pre {
max-height: calc(100vh + 4px);
max-width: calc(100vw + 4px);
}
` : '';
const cssAdd = () =>`
${global_css()}
${cssForCodePage()}
.code-container, .code-container-shadow {
max-width: 100%;
display: inline-flex;
flex-direction: column;
overflow: auto;
border-radius: 8px;
max-height: 100%;
overflow: visible;
}
.code-container > pre:only-child, .code-container-pre {
max-width: 100%;
display: inline-flex;
flex-direction: column;
flex-grow: 1;
height: 0;
}
.code-container > pre:only-child > code:only-child, .code-container-pre > code:only-child{
max-width: 100%;
flex-grow: 1;
height: 0;
}
.code-container pre code, .code-container-pre code {
padding: 0;
font-family: Consolas;
cursor: text;
overflow: auto;
box-sizing: border-box;
}
.code-container pre code .marker, .code-container-pre code .marker {
display: inline-block;
color: #636d83;
text-align: right;
padding-right: 20px;
user-select: none;
cursor: auto;
}
.code-container[contenteditable]{
outline: 0 !important;
contain: strict;
box-sizing: border-box;
}
.code-container[contenteditable]>pre[contenteditable="false"]{
contain: strict;
width: initial;
box-sizing: border-box;
}
html {
--token-color-keyword: #07a;
--token-color-punctuation: #1415ec;
--token-color-comment: #259789;
--token-color-function: #da204f;
--token-color-atrule: #700d0d;
--token-stylus-selector: #1373bb;
--token-stylus-variable: #0d10cd;
--token-stylus-unit: #d1939e;
}
[dark] {
--token-color-keyword: #898af2;
--token-color-punctuation: #fadbdb;
--token-color-comment:#59c6b9;
--token-color-function: #e98aa2;
--token-color-atrule: #cc66ce;
--token-stylus-selector: #96c7ec;
--token-stylus-variable: #fff;
--token-stylus-unit: #cfb9d7;
--marker-color-background: #242424;
--marker-color-text: #b6b2b2;
}
code .token.comment {
color: var(--token-color-comment);
}
code .token.atrule, code .token.attr-value, code .token.keyword {
color: #1415ec;
color: var(--token-color-keyword);
}
code .token.punctuation{
color: var(--token-color-punctuation);
}
code .token.variable-declaration,
code .token.variable {
color: #0d10cd;
}
code .token.selector{
color: #1373bb;
}
code .token.function {
color:var(--token-color-function);
}
.language-stylus .token.variable-declaration,
.language-stylus .token.variable {
color: #0d10cd;
color: var(--token-stylus-variable);
}
.language-stylus .token.selector{
color: #1373bb;
color: var(--token-stylus-selector);
}
.language-stylus .token.punctuation{
color:#700d0d;
}
.language-stylus .token.function {
color:#da204f
}
code.language-stylus .token.atrule,
code.language-stylus .token.attr-value,
code.language-stylus .token.keyword,
code.language-stylus .token.punctuation,
code.language-stylus .token.function {
color: #700d0d;
color: var(--token-color-atrule);
}
code.language-stylus .token.punctuation {
opacity: 1;
}
code.language-stylus .property-declaration .operator {
color: inherit;
}
code.language-stylus .token.unit {
color: var(--token-stylus-unit);
}
.token, span.marker {
contain: content;
}
.prettyprint.prettyprint {
background-color: transparent;
}
`;
const Promise = (async function () { })().constructor;
const delayPn = delay => new Promise((fn => setTimeout(fn, delay)));
const PromiseExternal = ((resolve_, reject_) => {
const h = (resolve, reject) => { resolve_ = resolve; reject_ = reject };
return class PromiseExternal extends Promise {
constructor(cb = h) {
super(cb);
if (cb === h) {
/** @type {(value: any) => void} */
this.resolve = resolve_;
/** @type {(reason?: any) => void} */
this.reject = reject_;
}
}
};
})();
// -------- fix requestIdleCallback issue for long coding --------
const pud = new PromiseExternal();
if (typeof window.requestIdleCallback === 'function' && !window.requestIdleCallback842 && window.requestIdleCallback.length === 1) {
window.requestIdleCallback842 = window.requestIdleCallback;
window.requestIdleCallback = function (callback, ...args) {
console.error(322)
return (this || window).requestIdleCallback842(async function () {
await pud.then();
setTimeout(()=>{
callback.apply(this, arguments);
});
}, ...args);
}
}
// -------- fix requestIdleCallback issue for long coding --------
const pScript = new PromiseExternal();
const pElementQuery = new PromiseExternal();
HTMLElement.prototype.getElementsByTagName331 = HTMLElement.prototype.getElementsByTagName;
Document.prototype.getElementsByTagName331 = Document.prototype.getElementsByTagName;
HTMLElement.prototype.getElementsByTagName = getElementsByTagName;
Document.prototype.getElementsByTagName = getElementsByTagName;
let byPass = true;
const observablePromise = (proc, timeoutPromise) => {
let promise = null;
return {
obtain() {
if (!promise) {
promise = new Promise(resolve => {
let mo = null;
const f = () => {
let t = proc();
if (t) {
mo.disconnect();
mo.takeRecords();
mo = null;
resolve(t);
}
}
mo = new MutationObserver(f);
mo.observe(document, { subtree: true, childList: true })
f();
timeoutPromise && timeoutPromise.then(() => {
resolve(null)
});
});
}
return promise
}
}
}
const documentReady = new Promise(resolve => {
Promise.resolve().then(() => {
if (document.readyState !== 'loading') {
resolve();
} else {
window.addEventListener("DOMContentLoaded", resolve, false);
}
});
});
documentReady.then(async () => {
pud.resolve();
});
function getElementsByTagName(tag) {
if (byPass) {
if (tag === 'pre' || tag === 'code' || tag === 'xmp') {
if (location.pathname.endsWith('/code')) {
pElementQuery.resolve();
return [];
}
}
}
return this.getElementsByTagName331(tag);
}
async function onBodyHeadReadyAsync() {
await observablePromise(() => document.body && document.head).obtain();
}
// Load CSS
function loadJS(href) {
return new Promise(resolve => {
const script = document.createElement('script');
script.src = href;
script.onload = () => {
resolve(script);
};
document.head.appendChild(script);
});
}
// Load CSS
function loadCSS(href) {
const link = document.createElement('link');
link.rel = 'stylesheet';
link.href = href;
document.head.appendChild(link);
return link;
}
function getLangClassName(pre, textContent){
let className = '';
let preLang = '';
if (pre.classList.contains('lang-js')) {
preLang = 'lang-js';
} else if (pre.classList.contains('lang-css')) {
preLang = 'lang-css';
} else if (pre.classList.contains('uglyprint')){
let m =/\/\/\s*={2,9}(\w+)={2,9}\s*[\r\n]/.exec(pre.textContent);
if(m){
m = m[1];
if(m === 'UserScript') preLang = 'lang-js';
if(m === 'UserStyle') preLang = 'lang-css';
}
}
if (preLang === 'lang-js') {
className = 'language-javascript';
} else if (preLang === 'lang-css') {
const text = textContent;
let m = /\n@preprocessor\s+([-_a-zA-Z]{3,8})\s*\n/.exec(text);
className = 'language-css'
if (m) {
const preprocessor = m[1];
if (preprocessor === 'stylus') {
className = 'language-stylus';
} else if (preprocessor === 'uso') {
className = 'language-stylus';
} else if (preprocessor === 'less') {
className = 'language-less';
} else if (preprocessor === 'default') {
className = 'language-stylus';
} else {
className = 'language-stylus';
}
}
}
return className;
}
/** @param {HTMLElement} pre */
function prepareCodeAreaAsync(pre) {
if (pre.isConnected === false) return;
const preParentNode = pre.parentNode;
const preNextNode = pre.nextSibling;
const codeContainer = pre.closest('.code-container');
const doContentEditable = codeContainer && codeContainer.querySelector('.code-container>pre:only-child');
pre.remove();
for (const li of pre.querySelectorAll('li')) {
li.append(document.createTextNode('\n'));
}
const textContent = pre.textContent;
const className = getLangClassName(pre, textContent);
if (!className) return;
if (doContentEditable) {
// avoid selection to the outside by mouse dragging
codeContainer.setAttribute('contenteditable', '');
pre.setAttribute('contenteditable', 'false');
}
const code = document.createElement('code');
code.classList.add(className);
code.classList.add('syntax-highlighted')
let htmlCode = '';
if (className === 'language-javascript') {
htmlCode = Prism.highlight(textContent, Prism.languages.javascript, 'javascript');
} else if (className === 'language-stylus') {
htmlCode = Prism.highlight(textContent, Prism.languages.stylus, 'stylus');
} else if (className === 'language-less') {
htmlCode = Prism.highlight(textContent, Prism.languages.less, 'less');
} else {
htmlCode = Prism.highlight(textContent, Prism.languages.css, 'css');
}
// Adding line numbers
htmlCode = htmlCode || '';
const htmlSplit = htmlCode ? htmlCode.split('\n') : [];
const totalLines = htmlSplit.length;
let mwStyle = '';
if (totalLines >= 1) {
code.classList.add('hljs-add-marker-width');
const len = `${totalLines}`.length * 0.5;
mwStyle = `${len}em`;
htmlCode = htmlSplit.map((n, i) => `<span class="marker marker-fixed-width" marker-text="${i + 1}"></span>${n}`).join('\n') || '';
} else {
code.classList.remove('hljs-add-marker-width');
}
code.innerHTML = htmlCode;
code.style.setProperty('--hljs-marker-width', mwStyle);
if(pre.firstChild === pre.lastChild && pre.firstChild instanceof Node){
pre.firstChild.replaceWith(code);
}else{
pre.innerHTML = '';
pre.appendChild(code);
}
pre.classList.add('code-container-pre');
if(USE_SHADOW_MODE){
const shadowDiv = document.createElement("div");
shadowDiv.classList.add('code-container-shadow')
const shadow = shadowDiv.attachShadow({ mode: "open" });
const styles = document.querySelectorAll('link, style');
for(style of styles) {
if(style.classList.contains("stylus")) continue;
if(style.nodeName === 'LINK' && style.rel !== 'stylesheet') continue;
shadow.appendChild(style.cloneNode(true))
}
shadow.appendChild(pre)
preParentNode.insertBefore(shadowDiv, preNextNode);
}else{
preParentNode.insertBefore(pre, preNextNode);
}
}
const documentBodyHeadReady = onBodyHeadReadyAsync();
documentBodyHeadReady.then(async () => {
if (!location.pathname.endsWith('/code')) {
return;
}
document.head.appendChild(document.createElement('style')).textContent = `${cssAdd()}`;
self.Prism = self.Prism || {};
self.Prism.manual = true;
await loadJS(resoruces['prism-core.js']);
await loadJS(resoruces['prism-clike.js']);
await loadJS(resoruces['prism-javascript.js']);
await loadJS(resoruces['prism-css.js']);
await loadJS(resoruces['prism-stylus.js']);
if (document.documentElement.hasAttribute('dark')) {
loadCSS(resoruces['prism-dark.css']);
} else {
loadCSS(resoruces['prism.css']);
}
pScript.resolve();
});
let keydownActive = false;
documentReady.then(async () => {
if (!location.pathname.endsWith('/code')) {
byPass = false;
return;
}
await pScript.then();
await Promise.race([pElementQuery, delayPn(800)]);
const targets = document.querySelectorAll('.code-container pre.lang-js, .code-container pre.lang-css, .code-container pre.uglyprint');
// pre.uglyprint : too long code ; see https://greasyfork.org/zh-CN/scripts/24204-picviewer-ce/code
if (targets.length === 0) return;
await delayPn(40);
document.head.appendChild(document.createElement('style')).textContent = doActionCSS();
await delayPn(40);
byPass = false;
// Code highlighting
const promises = [...targets].map(prepareCodeAreaAsync)
await Promise.all(promises);
await delayPn(40);
document.documentElement.setAttribute('dkkfv', '');
keydownActive = true;
});
function selectAllWithinElement(element) {
window.getSelection().removeAllRanges();
let range = document.createRange();
if (element) {
range.selectNodeContents(element);
window.getSelection().addRange(range);
} else {
console.error('Element not found with ID:', element);
}
}
document.addEventListener('keydown', (e) => {
if (keydownActive && e && e.code === 'KeyA' && e.isTrusted && (e.metaKey || e.ctrlKey) && !e.shiftKey && !e.altKey) {
const target = e.target;
const container = target ? target.closest('div.code-container') : null;
const code = container ? container.querySelector('code') : null;
if (container && code) {
e.preventDefault();
e.stopPropagation();
e.stopImmediatePropagation();
setTimeout(() => {
selectAllWithinElement(code);
}, 1)
}
}
}, true);
})();