Slack: Quick Edit Button

Add quick edit button to hover toolbar

您需要先安裝使用者腳本管理器擴展,如 TampermonkeyGreasemonkeyViolentmonkey 之後才能安裝該腳本。

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

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyViolentmonkey 後才能安裝該腳本。

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyUserscripts 後才能安裝該腳本。

你需要先安裝一款使用者腳本管理器擴展,比如 Tampermonkey,才能安裝此腳本

您需要先安裝使用者腳本管理器擴充功能後才能安裝該腳本。

(我已經安裝了使用者腳本管理器,讓我安裝!)

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

(我已經安裝了使用者樣式管理器,讓我安裝!)

// ==UserScript==
// @name        Slack: Quick Edit Button
// @namespace   Violentmonkey Scripts
// @match       https://app.slack.com/client/*
// @grant       none
// @version     1.1
// @author      GorvGoyl
// @supportURL  https://github.com/gorvGoyl/
// @description Add quick edit button to hover toolbar
// @description 7/9/2024, 9:54:40 PM
// @license MIT
// ==/UserScript==

var sender = "";

// Function to create and insert the button
function insertButton() {
  // Check if the button already exists to avoid duplicates
  if (isEditPresent()) {
    console.debug("btn already present so skipping");
    return;
  }

  // Create the new button element
  const newButton = document.createElement("button");

  // Set the button classes
  newButton.classList.add(
    "c-button-unstyled",
    "c-icon_button",
    "c-icon_button--size_small",
    "c-message_actions__button",
    "c-icon_button--default",
    "custom-edit-button"
  );

  // Set the SVG content inside the button
  newButton.innerHTML = `
  <svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" viewBox="0 0 24 24">
    <path fill="currentColor" d="M5 19h1.425L16.2 9.225L14.775 7.8L5 17.575zm-1 2q-.425 0-.712-.288T3 20v-2.425q0-.4.15-.763t.425-.637L16.2 3.575q.3-.275.663-.425t.762-.15t.775.15t.65.45L20.425 5q.3.275.437.65T21 6.4q0 .4-.138.763t-.437.662l-12.6 12.6q-.275.275-.638.425t-.762.15zM19 6.4L17.6 5zm-3.525 2.125l-.7-.725L16.2 9.225z"/>
  </svg>
  `;

  // Set the onClick behavior
  newButton.onclick = async () => {
    // Find and click the "more_message_actions" button
    const moreActionsButton = document.querySelector(
      'button[data-qa="more_message_actions"]'
    );
    if (moreActionsButton) {
      moreActionsButton.click();

      const editMessageButton = await getElement(
        'button[data-qa="edit_message"]'
      );
      if (editMessageButton) {
        editMessageButton.click();
       setTimeout(() => {
        getMessageActionsContainer()?.remove();
       }, 400);
      }
    }
  };

  // Find the "start_thread" button
  const startThreadButton = document.querySelector(
    'button[data-qa="start_thread"]'
  );

  // Insert the new button before the "start_thread" button
  if (startThreadButton) {
    startThreadButton.parentNode.insertBefore(newButton, startThreadButton);
    console.debug("btn added");
  }
}

function debounce(func, wait) {
  let timeout;
  return function (...args) {
    clearTimeout(timeout);
    timeout = setTimeout(() => func.apply(this, args), wait);
  };
}

// Function to observe mutations with debounce
function observeMutations(targetNode) {
  // console.debug("observeMutations");
  const debouncedInsertButton = debounce(insertButton, 50); // 200ms debounce

  // Create a mutation observer
  const observer = new MutationObserver((mutationsList) => {
    for (const mutation of mutationsList) {
      if (mutation.type === "childList" || mutation.type === "attributes") {
        const messageActionsContainer = getMessageActionsContainer();
        if (
          messageActionsContainer &&
          isSender(messageActionsContainer) &&
          !isEditPresent()
        ) {
          debouncedInsertButton();
        }
      }
    }
  });

  // Configure the observer to watch for changes in the subtree
  observer.observe(targetNode, {
    attributes: true,
    childList: true,
    subtree: true,
  });
}

function getMessageActionsContainer() {
  return document.querySelector(
    "div.c-message_actions__container.c-message__actions>div.c-message_actions__group"
  );
}

// Find the slack kit list element and add a hover event listener to start observing
async function init() {
  const slackKitList = await getElement("div.p-workspace__primary_view_body");

  if (slackKitList) {
    observeMutations(slackKitList);
  } else {
    console.error("couldnt find element");
  }
}
init();
function isSender(messageActionsContainer) {
  if (!sender) {
    sender = document
      .querySelector('[data-qa="user-button"]')
      ?.getAttribute("aria-label")
      ?.replace("User: ", "");
  }
  if (!sender) {
    return;
  }

  const kitactions = messageActionsContainer?.closest(
    "div.c-message_kit__actions"
  );

  if (!kitactions) {
    return false;
  }

  // if it's the first row
  let name = kitactions
    ?.querySelector('button[data-qa="message_sender_name"]')
    ?.innerText?.trim();

  // if it's the 2nd row
  if (!name) {
    name = kitactions
      ?.querySelector("div.c-message_kit__gutter__right>span.offscreen")
      ?.innerText?.trim();
  }

  return name == sender;
}

function isEditPresent() {
  return document.querySelector("button.custom-edit-button");
}

// helper menthod: get element whenever it becomes available
function getElement(selector) {
  return new Promise((resolve, reject) => {
    // Check if the element already exists
    const element = document.querySelector(selector);
    if (element) {
      resolve(element);
      return;
    }

    // Create a MutationObserver to listen for changes in the DOM
    const observer = new MutationObserver((mutations, observer) => {
      // Check for the element again within each mutation
      const element = document.querySelector(selector);
      if (element) {
        observer.disconnect(); // Stop observing
        resolve(element);
      }
    });

    // Start observing the document body for child list changes
    observer.observe(document.body, { childList: true, subtree: true });

    // Set a timeout to reject the promise if the element isn't found within 10 seconds
    const timeoutId = setTimeout(() => {
      observer.disconnect(); // Ensure to disconnect the observer to prevent memory leaks
      resolve(null); // Resolve with null instead of rejecting to indicate the timeout without throwing an error
    }, 10000); // 10 seconds

    // Ensure that if the element is found and the observer is disconnected, we also clear the timeout
    observer.takeRecords().forEach((record) => {
      clearTimeout(timeoutId);
    });
  });
}