Discord - Open chat in popup

Adds a "open in popup" button to channels.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name        Discord - Open chat in popup
// @namespace   lleaff
// @supportURL  https://gist.github.com/lleaff/8514033dc8e54ce02d6adf3c2e46d8ff#comments
// @match       https://discordapp.com/channels/*
// @version     1
// @run-at      document-end
// @grant       none
// @noframes
// @description Adds a "open in popup" button to channels.
// ==/UserScript==

/* =Configuration
 *------------------------------------------------------------*/

const POPUP_WIDTH /*: pixels */ = 400;
const WAIT_FOR_LOAD_TRY_INTERVAL /*: milliseconds */ = 0.5e3;

/* =DOM Utilities
 *------------------------------------------------------------*/

const $ = (selector, el) => Array.from((el || document).querySelectorAll(selector));
 
function hideAllSiblings(el) {
  const siblings = getSiblings(el);
  siblings.forEach(el => el.style.display = 'none');
}

function getSiblings(el) {
  const all = Array.from(el.parentNode.childNodes);
  return all.filter(child => child !== el);
}

/**
 * Open and return a popup window. Ususally blocked by browser by default.
 * @param options - https://developer.mozilla.org/en-US/docs/Web/API/Window/open#Position_and_size_features
 */
function openPopup(url, name, options) {
  const opts = Object.assign({
    menubar: false,
    location: false,
    resizable: true,
    scrollbars: false,
    status: false
  }, options);
  const convertOptVal = val => {
    switch(val) {
      case false: return 'no';
      case true: return 'yes';
      default: return val;
    }
  }
  const optionsStr = Object.keys(opts)
                       .map(key =>`${key}=${convertOptVal(opts[key])}`, '')
                       .join(',');
  return window.open(url,
                     name || `popup:${encodeURI(url)}`,
                     optionsStr);
}

/* =Main window
 *------------------------------------------------------------*/

/**
 * Main function to be executed on main page
 */
function mainBootstrap() {
  const contacts = $('.channel:not(.btn-friends)');
  if (!contacts.length) {
    return false;
  }
  
  contacts.forEach(contact => {
    addOpenPopupBtn(contact);
  });
}

/* =Popup button
 *------------------------------------------------------------*/

function addOpenPopupBtn(el) {
  const btn = createOpenPopupBtnDOM();
  btn.addEventListener('click',
                       (e) => { openChatPopup(el); e.preventDefault(); });
  const closeButton = $('.close', el)[0];
  closeButton.parentNode.insertBefore(btn, closeButton);
}

function createOpenPopupBtnDOM() {
  let btn = document.createElement('button');
  btn.className = 'close';
  btn.style.backgroundImage = "url('data:image/png;base64,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')";
  return btn;
}

function openChatPopup(contactDiv) {
  const linkEl = $('a', contactDiv)[0];
  if (!linkEl) { return false; }
  const url = linkEl.href;
  const popup = openPopup(url, 'popup', { width: POPUP_WIDTH });
  if (!popup) { return; }
  const script = document.createElement('script');
  script.innerHTML = `var IS_GM_POPUP = true;`;
  popup.document.head.appendChild(script);
  return popup;
}

 
/* =Popup
 *------------------------------------------------------------*/

/**
 * Main function to be executed on popup page
 */
function mainPopup() {
  if (!hideAllButChat()) {
    return false;
  }
}

function hideAllButChat() {
  const chat = $('.chat')[0];
  if (!chat) { return false; }
  hideAllSiblings(chat);
  return true;
}

/* =Script running
 *------------------------------------------------------------*/

/**
 * Try running a function until it returns something other than `null` or `false`.
 */
function tryRunFunc(fn, interval) {
    if ([null, false].includes(fn())) {
      setTimeout(() => tryRunFunc(fn, interval), interval)
    }
}

function main() {
  
  const in_popup = typeof IS_GM_POPUP !== 'undefined';
  const mainFunc = in_popup ? mainPopup : mainBootstrap;
  
  tryRunFunc(mainFunc, WAIT_FOR_LOAD_TRY_INTERVAL);
}
  
/* =Execution
 *------------------------------------------------------------*/

main();