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39 changes: 37 additions & 2 deletions src/routes/tutorial/[slug]/Editor.svelte
Original file line number Diff line number Diff line change
@@ -1,6 +1,5 @@
<script>
import { dev } from '$app/environment';
import { monaco } from '$lib/client/monaco/monaco.js';
import { createEventDispatcher, onMount } from 'svelte';

/**
Expand Down Expand Up @@ -36,6 +35,13 @@
let w = 0;
let h = 0;

/**
* The iframe sometimes takes focus control in ways we can't prevent
* while the editor is focussed. Refocus the editor in these cases.
* This boolean tracks whether or not the editor should be refocused.
*/
let preserve_focus = true;

onMount(() => {
let destroyed = false;

Expand Down Expand Up @@ -234,8 +240,37 @@
}
</script>

<svelte:window
on:pointerdown={(e) => {
if (!container.contains(/** @type {HTMLElement} */ (e.target))) {
preserve_focus = false;
}
}}
/>

<div bind:clientWidth={w} bind:clientHeight={h}>
<div bind:this={container} />
<div
bind:this={container}
on:keydown={(e) => {
if (e.key === 'Tab') {
preserve_focus = false;

setTimeout(() => {
preserve_focus = true;
}, 0);
}
}}
on:focusin={() => {
preserve_focus = true;
}}
on:focusout={() => {
if (preserve_focus) {
setTimeout(() => {
instance?.editor.focus();
}, 0);
}
}}
/>
</div>

<style>
Expand Down