Telegram Message Hide

Hides messages from users in the user curated list

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 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        Telegram Message Hide
// @version     0.1
// @description Hides messages from users in the user curated list
// @license     MIT
// @author      smsimeon
// @icon        https://web.telegram.org/favicon.ico
// @namespace   Telegram-Message-Hide
// @include     https://web.telegram.org/*
// @grant       GM_addStyle
// @grant       GM_getValue
// @grant       GM_setValue
// @grant       GM_registerMenuCommand
// ==/UserScript==

/* jshint esversion: 10 */
(function main() {
  let defaultList = [
    "#user",
    "#female",
  ];

  let messages;
  let messagesLength;
  let userNames = GM_getValue("user-names", defaultList);
  let delay = GM_getValue("update-interval", 3000);
  let eventTimeout;

  function applyStyles(messagesWrappers) {
    messagesWrappers.forEach(messageWrapper => {
      const message = messageWrapper.querySelector(".im_message_body");
      if (!message) return;
      if (message.innerText && userNames.some(v => message.innerText.toLowerCase().indexOf(v.toLowerCase()) >= 0)) {
        console.log(message.innerText);
        message.style.display = 'none';
        message.onclick = null;
      }
    });
  }

  function eventThrottler(timeout) {
    if (!eventTimeout) {
      eventTimeout = setTimeout(() => {
        eventTimeout = null;
        messages = document.querySelectorAll(".im_history_message_wrap");
        if (messages.length === messagesLength || messages.length === 0) return;
        messagesLength = messages.length;
        applyStyles(messages);
      }, timeout);
    }
  }

  GM_addStyle(`
    .userMessage {
      max-height: 40px;
    }
    .userMessage > div:before {
      color: dodgerblue;
      font-weight: bold;
      text-decoration: underline dotted;
      content: "Hidden Content";
    }
  `);

  GM_registerMenuCommand("Filter list", () => {
    const wordList = GM_getValue("user-names", userNames);
    let val = prompt("Enter usernames to filter, separated by comma:", wordList);
    if (val !== null && typeof val === "string") {
      val = val.split(",").filter(v => v).map(v => v.trim());
      userNames = val;
      GM_setValue("user-names", val);
      messages = document.querySelectorAll(".im_history_message_wrap");
      applyStyles(messages);
    }
  });

  GM_registerMenuCommand("Update interval", () => {
    const updateInterval = GM_getValue("update-interval", delay);
    const val = prompt("Enter message scanning frequency (in ms):", updateInterval);
    if (val !== null && typeof val === "string") {
      delay = val;
      GM_setValue("update-interval", val);
    }
  });

  // Run the script when an API message is received, throttled with delay
  window.addEventListener("message", () => eventThrottler(delay), false);
}());