Add video player to Slack

Adds a HTML5 video player when it senses a video file.

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

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

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

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.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name         Add video player to Slack
// @namespace    http://tech.velmont.net
// @version      0.1
// @description  Adds a HTML5 video player when it senses a video file.
// @author       Odin Hørthe Omdal
// @match        http://*.slack.com/*
// @match        https://*.slack.com/*
// @run-at       document-end
// @grant        none
// ==/UserScript==

function addVideoTags() {
	let files = Array.from(document.querySelectorAll('.file_container > a:not(.checked-for-video)'))
	files.forEach(anchorElement => {
		/* Only check once */
		anchorElement.classList.add('checked-for-video');
		if (!anchorElement.href.match(/(webm|ogv|ogg|mp4)$/i)) {
			/* Probably not a video file */
			return;
		}
		if (anchorElement.parentElement.querySelector('video')) {
			/* Already have video added */
			return;
		}
		
		let v = document.createElement('video');
		v.src = anchorElement.href;
		v.controls = true;
		v.style.maxWidth='100%';
		v.style.maxHeight = '100%';
		
		anchorElement.parentElement.appendChild(v);
	});
}																 

$(function() {
	$('#msgs_div').on('DOMSubtreeModified propertychange', addVideoTags);
});