I have this piece of code: let iFrame = document.getElementById('oc-editor'); iFrame.addEventListener('load', function() { iFrame.contentWindow.postMessage({ eventType: 'populateCode', language: "{{this.codeLang}}", files: [ { "name": "file.{{this.codeLang}}", "c…

Looks like you’re working in gjs, so you can just use glimmer functions instead of trying to work around DOM rendering and race conditions. Add the glimmer {{on}} modifier with the iframe element and make your on loaded function fire on it. @action onIframeLoaded() { ... } ... <iframe {{on "load" …

That… exists!? Wow, I’ll give it a shot.

[image] Steven Chang: {{on "load" this.onIframeLoaded()}} Hmm… got this error: Compile error: Error: /discourse/theme-9718/discourse/components/show-onecompiler: Parse error on line 18: ... {{on "load" this.onIframeLoaded()}}> -----------------------^ Expecting 'ID', got 'INVALID' (discour…

Ah, I messed up my example. It should be {{on "load" this.onIframeLoaded}}, no parentheses, since it should be a reference to a function. I’ve edited my reply.

Hmm… it says that Error: 74:13 error 'on' is not defined in ESLint. And the docs have no mention of an import because it’s a modifier. I added event as a parameter to onIframeLoaded because the docs did that.

Add import { on } from "@ember/modifier"; and this should work. It’s a good idea to look at the Discourse source code. It’s a good place to learn with existing code.

[image] Arkshine: It’s a good idea to look at the Discourse source code. It’s a good place to learn with existing code. See also GitHub - discourse/all-the-plugins and GitHub - discourse/all-the-themes

Access tracked variables in VanillaJS?

Dev

pfaffman (Jay Pfaffman) February 25, 2025, 5:41pm 8

3 Likes

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Access tracked variables in VanillaJS?

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