A Tampermonkey Script, Trello with magic

trello-with-magic.user.js

// ==UserScript==
// @name         Trello with magic
// @version      0.0.7
// @description  Something magical for Trello
// @author       Heejin Lee <monster@teamappetizer.com>
// @updateURL    https://gist.github.com/appetizermonster/3cd46b2187e6fd344f75ae05c9d6f8b8/raw/trello-with-magic.user.js
// @downloadURL  https://gist.github.com/appetizermonster/3cd46b2187e6fd344f75ae05c9d6f8b8/raw/trello-with-magic.user.js
// @include      https://trello.com/*
// @include      https://trello.com/b/*/*
// @include      https://trello.com/c/*/*
// @resource     toastCss https://cdnjs.cloudflare.com/ajax/libs/jquery-toast-plugin/1.3.1/jquery.toast.min.css
// @require      https://cdnjs.cloudflare.com/ajax/libs/jquery-toast-plugin/1.3.1/jquery.toast.min.js
// @grant        GM_addStyle
// @grant        GM_getResourceText
// ==/UserScript==

(function () {
  'use strict';

  // Toast
  const toastCss = GM_getResourceText('toastCss');
  GM_addStyle(toastCss);

  function toast(msg) {
    $.toast({
      text: msg,
      stack: false
    });
  }

  function toasti(msg) {
    $.toast({
      text: msg,
      hideAfter: 800,
      loader: false
    });
  }

  // Shortcut System
  const shortcutCallbacks = {};
  let lastPressTime = 0;
  let lastComposition = '';

  function registerShortcut(combination, callback) {
    shortcutCallbacks[combination] = callback;
  }

  function processShortcutEvent(e) {
    if (!checkProperUrl())
      return;
    if (!e.key)
      return;

    const elapsed = Date.now() - lastPressTime;
    const shouldRecomposite = (elapsed >= 500);
    if (shouldRecomposite)
      lastComposition = ''; // Reset composition

    lastComposition += e.key;
    lastPressTime = Date.now();

    let hasMatchedShortcut = false;
    for (const shortcut in shortcutCallbacks) {
      if (lastComposition.toLowerCase().endsWith(shortcut.toLowerCase())) {
        const callback = shortcutCallbacks[shortcut];
        e.preventDefault();
        callback();
        return;
      }
      hasMatchedShortcut = shortcut.startsWith(lastComposition);
    }
    if (hasMatchedShortcut)
      e.preventDefault();
  }

  function checkProperUrl() {
    const re = /^https?:\/\/trello.com\/[bc]\//i;
    const url = document.location.href;
    return re.test(url);
  }

  function initShortcut() {
    document.addEventListener('keydown', processShortcutEvent);
  }

  // Card functions
  function moveCardTo(positionSelector, doneCallback) {
    const activeCard = $('.active-card');
    if (activeCard.length !== 1)
      return;

    activeCard.find('span.list-card-operation').click();
    $('a.js-move-card').click();
    positionSelector($('.js-select-position').children()).attr('selected', 'selected');
    $('input[value="Move"]').click();

    const cardName = activeCard.find('a.js-card-name')[0].outerText;
    const msg = `"${cardName}" has been moved`;
    toasti(msg);
  }

  function moveCardToTop() {
    moveCardTo((x) => x.first());
  }

  function moveCardToBottom() {
    moveCardTo((x) => x.last());
  }

  // App
  initShortcut();
  registerShortcut('zt', moveCardToTop);
  registerShortcut('zb', moveCardToBottom);

  toast('Trello with magic');
})();