Bypass the limitation of the native forwarding functionality not working in threads. Set which message to forward by clicking the fast forward icon beside it, then click the rewind button in an input area to insert an invisible link to that message. Right-click the rewind button to clear the set message.
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// ==UserScript==
// @name Forward Slack messages to channels and threads using an invisible link
// @namespace Violentmonkey Scripts
// @match *://app.slack.com/client/*
// @grant none
// @version 1.1
// @author CyrilSLi
// @description Bypass the limitation of the native forwarding functionality not working in threads. Set which message to forward by clicking the fast forward icon beside it, then click the rewind button in an input area to insert an invisible link to that message. Right-click the rewind button to clear the set message.
// @license MIT
// ==/UserScript==
const inputBtnId = "userscriptForwardMsgInput";
const inputSpanId = "userscriptForwardMsgInputSpan";
const reactBtnId = "userscriptForwardMsgReact";
const tooltip = "Link Forward";
var fwdLink = "";
const inputDivider = document.createElement("span");
inputDivider.className = inputSpanId + " c-wysiwyg_container__footer_divider";
const inputBtn = document.createElement("button");
inputBtn.className = inputBtnId + " c-button-unstyled c-icon_button c-icon_button--size_small c-wysiwyg_container__button c-wysiwyg_container__button--workflows c-icon_button--default";
inputBtn.setAttribute("tabindex", "0");
inputBtn.setAttribute("aria-label", tooltip);
inputBtn.setAttribute("delay", "500");
inputBtn.setAttribute("type", "button");
inputBtn.setAttribute("title", tooltip);
inputBtn.innerHTML = `
<svg data-ghv="true" data-qa="rewind" aria-hidden="true" viewBox="0 0 16 16" class="" style="--s: 18px;">
<path d="M9.196 8 15 4.633v6.734zm-.792-.696a.802.802 0 0 0 0 1.392l6.363 3.692c.52.302 1.233-.043 1.233-.696V4.308c0-.653-.713-.998-1.233-.696z"/>
<path d="M1.196 8 7 4.633v6.734zm-.792-.696a.802.802 0 0 0 0 1.392l6.363 3.692c.52.302 1.233-.043 1.233-.696V4.308c0-.653-.713-.998-1.233-.696z"/>
</svg>
`;
const reactBtn = document.createElement("button");
reactBtn.className = reactBtnId + " c-button-unstyled c-icon_button c-icon_button--size_small c-message_actions__button c-icon_button--default";
reactBtn.setAttribute("aria-label", tooltip);
reactBtn.setAttribute("type", "button");
reactBtn.setAttribute("title", tooltip);
reactBtn.innerHTML = `
<svg data-ghv="true" data-qa="forward" aria-hidden="true" viewBox="0 0 16 16" class="">
<path d="M6.804 8 1 4.633v6.734zm.792-.696a.802.802 0 0 1 0 1.392l-6.363 3.692C.713 12.69 0 12.345 0 11.692V4.308c0-.653.713-.998 1.233-.696z"/>
<path d="M14.804 8 9 4.633v6.734zm.792-.696a.802.802 0 0 1 0 1.392l-6.363 3.692C8.713 12.69 8 12.345 8 11.692V4.308c0-.653.713-.998 1.233-.696z"/>
</svg>
`;
function setFwdLink(ev) {
var parentEl = ev.target.parentNode;
while (!parentEl.classList.contains("c-wysiwyg_container")) {
parentEl = parentEl.parentNode;
}
var firstLine = [...document.getElementsByClassName("ql-editor")].filter(el => parentEl.contains(el))[0].children[0];
const linkHTML = `<a href="${fwdLink}" rel="noopener noreferrer" target="_blank">⁠</a>`;
firstLine.innerHTML = firstLine.innerHTML === "<br>" ? linkHTML : linkHTML + firstLine.innerHTML;
}
function clearFwdLink(ev) {
ev.preventDefault();
fwdLink = "";
run();
return false;
}
`
function getFwdLink(ev) {
var parentEl = ev.target.parentNode;
while (!parentEl.classList.contains("c-virtual_list__item")) {
parentEl = parentEl.parentNode;
}
parentEl = parentEl.id;
fwdLink = "https://app.slack.com/archives/";
if (parentEl.includes("thread")) {
parentEl = parentEl.split("-");
fwdLink += parentEl[0];
fwdLink += "/p" + parentEl.pop().split("_")[1].replace(".", "");
fwdLink += "?thread_ts=" + parentEl[1];
fwdLink += "&cid=" + parentEl[0];
} else {
fwdLink += window.location.href.split("?")[0].split("/").slice(-1)[0];
fwdLink += "/p" + parentEl.replace(".", "");
}
run();
}
`
function getFwdLink(ev) {
var parentEl = ev.target.parentNode;
while (!parentEl.classList.contains("c-message_kit__actions")) {
parentEl = parentEl.parentNode;
}
fwdLink = parentEl.querySelector("a.c-timestamp").href
run();
}
function run() {
[...document.getElementsByClassName("c-texty_buttons")].forEach((inputRow) => {
if (fwdLink) {
if (!inputRow.getElementsByClassName(inputBtnId)[0]) {
inputRow.appendChild(inputDivider.cloneNode(true));
msgInput = inputBtn.cloneNode(true);
msgInput.addEventListener("click", setFwdLink);
msgInput.addEventListener("contextmenu", clearFwdLink, false);
inputRow.appendChild(msgInput);
}
} else {
if (inputRow.getElementsByClassName(inputBtnId)[0]) {
inputRow.getElementsByClassName(inputBtnId)[0].remove();
inputRow.getElementsByClassName(inputSpanId)[0].remove();
}
}
});
if (document.getElementsByClassName("c-message_actions__group")[0]) {
[...document.getElementsByClassName("c-message_actions__group")].forEach((el) => {
if (!el.getElementsByClassName(reactBtnId)[0]) {
const lastEl = el.querySelector("[data-qa='more_message_actions']");
msgReact = reactBtn.cloneNode(true);
msgReact.addEventListener("click", getFwdLink);
el.insertBefore(msgReact, lastEl);
}
});
}
}
const observer = new MutationObserver((muts) => {
const view = document.getElementsByClassName("p-view_contents--primary")[0]
if (view && view.innerHTML) {
setTimeout(run, 0);
}
})
observer.observe(document.body, {
attributes: false,
childList: true,
characterData: false,
subtree:true
})