Hello! I am trying to create a theme component to use the external script tabbis.js so I can create tabs in posts. I followed the walkthrough here: Embed widget within text in a topic - #2 by Johani Here is what my theme component looks like so far. Common > Header // options const TABBIS_SCRIPT_SRC = "https://cdn.jsdelivr.net/gh/jenstornell/tabbis.js/assets/js/src/tabbis.es6.js"; // we use the Discourse Load script lib to ensure scripts are loaded // properly. Don't worry, this is smart enough to not duplicate the script // if it's already loaded const loadScript = require("discourse/lib/load-script").default; // create a post decorator api.decorateCookedElement( post => { // does this post have tabbis tabs? const tabbisTabs = post.querySelectorAll('[data-wrap="tabbis"]'); // Yes, so let's do some work. if (tabbisTabs.length) { // for each tabbis widget tabbisTabs.forEach(tabbisTab => { // load the tabbis script. loadScript(TABBIS_SCRIPT_SRC).then(() => { // everything is ready, let's call the tabbis script tabbis(); }); }); } }, // add an id to the decorator to avoid memory leaks { id: "render-tabbis-tabs" } ); Common > CSS (copied straight from the tabbis.js repo) [data-panes] { --color: #000; } [data-tabs] { background: var(--color); border: 2px solid var(--color); border-bottom: none; overflow-x: auto; display: flex; } [data-tabs] > [role="tab"] { all: unset; padding: .75rem 1.5rem; -webkit-user-select: none; -moz-user-select: none; -ms-user-select: none; user-select: none; font-weight: 600; color: #fff; border: 1px solid transparent; outline: none; } [data-tabs] > [role="tab"]:hover { background: rgba(255, 255, 255, 0.2); } [data-tabs] > [role="tab"]:active { background: rgba(255, 255, 255, 0.3); } [data-tabs] > [role="tab"]:focus { border: 1px dotted rgba(255, 255, 255, 0.5); } [data-tabs] > [role="tab"][aria-selected="true"] { background: #fff; color: #000; } [data-tabs] > [role="tab"][aria-selected="true"]:focus { border: 1px dotted rgba(0, 0, 0, 0.5); } [data-panes] { border: 2px solid var(--color); border-top: none; } [data-panes] > * { background: #fff; padding: 2rem; font-weight: 600; outline: none; border: 1px solid transparent; } [data-panes] > *:focus { border: 1px dotted rgba(0, 0, 0, 0.5); } @media screen and (max-width: 460px) { [data-panes] > * { padding: 1rem; } } Content Security Policy Script src: added https://cdn.jsdelivr.net Post markup [wrap="tabbis"] Tab1 Tab2 Tab3 Pane1 Pane2 Pane3 [/wrap] The script seems to load for a split second after I edit the post, but once it loads fully it’s unusable. This appears in the console but I have no idea how to fix it. Is there a conflict with other tabs in Discourse? [tabbis uncaught type error] How can I get this working? I’m at a loss!

I think you’ll need a plugin to do that, but I could be wrong. You might look at the math plugin or the plugin guides.

Why does this script require a plugin instead of a theme component? The single-page app structure is still very new to me.

Thank you! I was surprised to see that there wasn’t already some kind of tabs plugin or component around here; it’s something I really want for my community so I’m giving it a shot. I am pretty new to anything except very basic javascript but I am trying to learn. https://github.com/fairest/discourse-tabbis-beta

Changing the post markup to [wrap="tabbis"] Tab1 Tab2 Tab3 Pane1 Pane2 Pane3 [/wrap] makes it work :tada: There are a few notes you could use to improve it further: Do not call loadScript multiple times. Check if it’s loaded already before calling it, otherwise it will be called multiple times. Pass a more specific selector to the tabbis() call, so you initialize the one you specifically have selected.

Tabbis theme component

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Falco (Falco) January 9, 2023, 5:09am 4

Please share your whole theme-component source code (preferably as a GitHub repository) so that we can help you with it easily.

By the way this sounds like a pretty useful theme-component!

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Tabbis theme component

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