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small utilities that I'm tired of digging from old scripts to put in new ones.
Detta skript bör inte installeras direkt. Det är ett bibliotek för andra skript att inkludera med meta-direktivet // @require https://update.greasyfork.org/scripts/468394/1247001/Itsnotlupus%27%20Tiny%20Utilities.js
// ==UserScript==
// @name Itsnotlupus' Tiny Utilities
// @namespace Itsnotlupus Industries
// @version 1.27.1
// @description small utilities that I'm tired of digging from old scripts to put in new ones.
// @author Itsnotlupus
// @license MIT
// ==/UserScript==
/* jshint esversion:11 */
/* jshint -W138 */
/** DOM queries - CSS selectors and XPath */
const $ = (q,d=document)=>d.querySelector(q);
const $$ = (q,d=document)=>d.querySelectorAll(q);
const $$$ = (q,d=document,x=d.evaluate(q,d),a=[],n=x.iterateNext()) => n ? (a.push(n), $$$(q,d,x,a)) : a;
/** calls a function whenever the DOM changes */
const observeDOM = (fn, e=document, config = { attributes: 1, childList: 1, subtree: 1 }, o = new MutationObserver(fn)) => (o.observe(e,config),()=>o.disconnect());
/** check a condition upfront, and on every DOM change until true */
const untilDOM = async (v, e=document, f=v.sup?()=>$(v,e):v) => f() || new Promise((r,_,d = observeDOM(() => (_=f()) && d() | r(_), e)) => 0);
/** promisify setTimeout and setInterval */
const sleep = (w = 100) => new Promise(r=>setTimeout(r, w));
const until = async (v, w=100, t, f=v.sup?()=>$(v):v) => f() || new Promise(r => t=setInterval((s=f()) => s && (clearInterval(t), r(s)), w));
/** slightly less painful syntax to create DOM trees */
const crel = (name, attrs, ...children) => ((e = Object.assign(document.createElement(name), attrs)) => (children.length && e.append(...children), e))();
/** same, for SVG content. */
const svg = (name, attrs={}, ...children) => ((e=document.createElementNS('http://www.w3.org/2000/svg', name), _=Object.keys(attrs).forEach(k=>e.setAttribute(k,attrs[k])),__=children.length && e.append(...children)) => e)();
/** create a shadow dom with an isolated stylesheet. tbh you're better off just creating a custom element. */
const custom = (name, css, dom, e = crel(name), ss = e.attachShadow({mode:'closed'}), s = new CSSStyleSheet(), t = ss.adoptedStyleSheets = [ (s.replaceSync(css),s) ], u = dom.length && ss.append(...dom)) => e;
/** add a stylesheet */
const addStyles = async css => (await untilDOM('head')).append(crel('style', { type: 'text/css', textContent: css }));
/** decode HTML entities in a string */
const decodeEntities = str => crel('textarea', { innerHTML: str }).value;
/** stolen from https://gist.github.com/nmsdvid/8807205 */
const slowDebounce = (a,b=250,c=0)=>(...d)=>clearTimeout(c,c=setTimeout(a,b,...d));
/** microtask debounce */
const fastDebounce = (f, l, s=0) => async (...a) => (l = a, !s && (await (s=1), s = 0, f(...l)));
/** remember and shortcut what a (pure) function returns */
const memoize = (f, mkKey=args=>args.join(), cache = Object.create(null)) => (...args) => cache[mkKey(args)] ??= f(...args);
/** given an acyclic graph `obj`, visit every node recursively, depth first.
* call fn(obj[key], obj, key) on every non-root node. If fn returns `false`, don't traverse that section further. */
const traverse = (obj, fn) => obj && typeof obj == 'object' && Object.keys(obj).forEach(key => fn(obj[key], obj, key) !== false && traverse(obj[key], fn) );
/** requestAnimationFrame wrapper that allows a callback to request another run without referencing itself
* Use as:
* rAF((time, next) => {
* // cool animation code goes here.
* next(); // run again next frame
* });
*/
const rAF = (f, n=t=>f(t,r), r=_=>requestAnimationFrame(n)) => r();
/** define a few event listeners in one shot - call the returned function to remove them. */
const events = (o, t=window, opts, f=op=>Object.keys(o).forEach(e=>t[op](e,o[e],opts))) => (f("addEventListener"), () => f("removeEventListener"));
/** insta-drag handler. just add callbacks. */
function makeDraggable(elt, update, init=update, final=()=>{}) {
return events({
pointerdown(e) { elt.setPointerCapture(e.pointerId, e.preventDefault(init(e))) },
pointermove(e) { elt.hasPointerCapture(e.pointerId) && update(e) },
pointerup(e) { elt.releasePointerCapture(e.pointerId, final(e)) }
}, elt, true);
}
/** promisify a @grant-less XHR. probably useless. */
const xhr = (url, type='') => new Promise((r,e,x=Object.assign(new XMLHttpRequest(), {responseType: type,onload() { r(x.response); },onerror:e}),_=x.open('GET',url)) => x.send());
/** fetch and parse */
const fetchDOM = (url, mimeType) => fetch(url).then(r=>r.text()).then(t=>new DOMParser().parseFromString(t,mimeType));
const fetchHTML = url => fetchDOM(url, 'text/html');
const fetchJSON = url => fetch(url).then(r=>r.json());
/** Prefetch a URL */
const prefetch = url => document.head.append(crel('link', { rel: 'prefetch', href: url }));
/** Some sites break the `console` API. This attempts to restore a working console object. */
const fixConsole = (i=crel('iframe',{style:'display:none'}),_=document.body.append(i),c=unsafeWindow.console) => console.log.name!='log' ? (unsafeWindow.console = i.contentWindow.console,()=>(i.remove(),unsafeWindow.console=c)):()=>{};
/** Another take on logging */
let logger = console;
/** a cheap way to get logs to show up on sites that damaged their console.log */
async function withLogs(f) {
if (logger.log.name == 'log') return await f();
const iframe=crel('iframe', { style: 'display:none' });
document.body.append(iframe);
const prevLogger = logger;
logger = iframe.contentWindow.console;
try {
return await f();
} finally {
iframe.remove();
logger = prevLogger;
}
}
const logg = (type, color={log:'#ccf',warn:'#fcf',error:'#fcc'}[type]) => (msg, ...args) => logger[type](`%c ${GM_info.script.name}: ${msg}`, 'font-weight:600;color:${color};background:#114;padding:.2em', ...args);
const log = logg('log');
const warn = logg('warn');
const error = logg('error');
const logGroup = (msg, ...args) => {
logger.groupCollapsed(`%c ${GM_info.script.name}: ${msg}`, 'font-weight:600;color:#ccf;background:#114;padding:.2em');
args.forEach(arg=>Array.isArray(arg)?logger.log(...arg):logger.log(arg));
logger.groupEnd();
};