Performance monitor

Works on any website. Shows fps, frame time, used memory. Changes by click

Versione datata 02/08/2020. Vedi la nuova versione l'ultima versione.

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// ==UserScript==
// @name            Performance monitor
// @description     Works on any website. Shows fps, frame time, used memory. Changes by click
// @name:ru         Монитор производительности
// @description:ru  Работает на любом сайте. Отображает fps, время кадра, используемую память. Смена по клику
// @version         1.0.0
// @author          elivovciwbilkosivitceri
// @namespace       https://greatest.deepsurf.us/users/462954
// @include         *
// @grant           none
// @require         https://cdn.jsdelivr.net/npm/[email protected]
// @require         https://cdn.jsdelivr.net/npm/[email protected]
// ==/UserScript==

/* jshint esversion: 6 */
/* eslint-disable no-undef */

(function() {
  'use strict';

  const stats = new Stats();

  stats.dom.style.touchAction = 'none';
  stats.dom.style.width = '80px';
  stats.dom.style.height = '48px';
  stats.dom.style.padding = 0;

  document.body.appendChild(stats.dom);

  interact(stats.dom).draggable({
    // keep the element within the area of it's parent
    modifiers: [
      interact.modifiers.restrictRect({
        restriction: 'parent',
        endOnly: true
      })
    ],

    listeners: {
      // call this function on every dragmove event
      move(event) {
        const target = event.target;

        // keep the dragged position in the data-x/data-y attributes
        const x = (parseFloat(target.getAttribute('data-x')) || 0) + event.dx;
        const y = (parseFloat(target.getAttribute('data-y')) || 0) + event.dy;

        // translate the element
        target.style.webkitTransform = 'translate(' + x + 'px, ' + y + 'px)';
        target.style.webkitTransform = target.style.transform;

        // update the position attributes
        target.setAttribute('data-x', x);
        target.setAttribute('data-y', y);
      },

      // call this function on every dragend event
      end(event) {
        stats.showPanel(-1);
      }
    }
  });

  requestAnimationFrame(function loop() {
    stats.update();
    requestAnimationFrame(loop);
  });
})();