☰

Itsnotlupus' Tiny Utilities

small utilities that I'm tired of digging from old scripts to put in new ones.

Verze ze dne 10. 06. 2023. Zobrazit nejnovější verzi.

Tento skript by neměl být instalován přímo. Jedná se o knihovnu, kterou by měly jiné skripty využívat pomocí meta příkazu // @require https://update.greatest.deepsurf.us/scripts/468394/1203263/Itsnotlupus%27%20Tiny%20Utilities.js 

// ==UserScript==
// @name         Itsnotlupus' Tiny Utilities
// @namespace    Itsnotlupus Industries
// @version      1.0
// @description  small utilities that I'm tired of digging from old scripts to put in new ones.
// @author       Itsnotlupus
// ==/UserScript==

/* jshint esversion:11 */

/** calls a function whenever the DOM changes */
const observeDOM = (fn, e = document.documentElement, config = { attributes: 1, childList: 1, subtree: 1 }, o = new MutationObserver(fn)) => (o.observe(e,config),()=>o.disconnect());

/** check a condition on every DOM change until true */
const untilDOM = (v, doc=document,f=typeof v==='string'?()=>doc.querySelector(v):v) => new Promise((r,_,d = observeDOM(() => (_=f()) && d() | r(_), doc.documentElement)) => 0);

/** basic async primitives */
const sleep = (w = 100) => new Promise(r=>setTimeout(r, w));
const until = async (v, w, f=typeof v==='string'?()=>document.querySelector(v):v) => { while (!f()) await sleep(w); return f(); };

/** slightly less painful syntax to create DOM trees */
const crel = (name, attrs, ...children) => ((e = Object.assign(document.createElement(name), attrs)) => (e.append(...children), e))();

/** same, for SVG content. golf me. */
const svg = (name, attrs, ...children) =>  {
  const e = document.createElementNS('http://www.w3.org/2000/svg', name);
  Object.entries(attrs).forEach(([key,val]) => e.setAttribute(key, val));
  e.append(...children);
  return e;
};

/** create a shadow dom with an isolated stylesheet */
const custom = (name, css, dom, e = crel(name), ss = e.attachShadow({mode:'closed'})) => (ss.adoptedStyleSheets = [ (s = new CSSStyleSheet(), s.replaceSync(css),s) ], ss.append(...dom), e);

/** stolen from https://gist.github.com/nmsdvid/8807205 */
const slowDdebounce = (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)));

// Things to add later:
// - React/redux injection/inspection
// - localization micro-framework thingy
// - maybe a wrapper for moduleraid?