scrowl/src/ui/Scrowl.tsx
2026-02-14 22:41:53 +01:00

80 lines
2.6 KiB
TypeScript

import { createEffect, For, Match, onMount, Switch } from "solid-js";
import { ExprREPL } from "./REPL";
import { clearFocus, DigithId, scrowl } from "./scrowlStore";
import { NewFunctionDraftDigith } from "./Function/NewFunctionDraftDigith";
import { FunctionDigith } from "./Function/FunctionDigith";
import { Digith } from "./Digith";
// WTF are these names?
// Scrowl
// - thining about "scrawling", "howl", "crows", "owls", "nests", "scrolling", "soul", "crawling"
// Digith
// - thinking about fingers/digits. Hand is an object to think with (counting).
// - Thinking of a prosthesis that's an extension of your body doing your bidding without you knowing exactly how.
// - digital
export function Scrowl() {
return (
<div
id="scrowl"
style={{
display: "flex",
"flex-direction": "column",
gap: "1.5rem",
}}
>
<For each={scrowl.digiths}>
{(digith) => (
<DigithWrapper id={digith.id}>
<Switch>
<Match when={digith.tag === 'repl'}>
<article class="digith">
<header><strong>REPL</strong></header>
<ExprREPL />
</article>
</Match>
<Match when={digith.tag === 'new-fn-draft'}>
<NewFunctionDraftDigith draft={digith as Digith.NewFunctionDraft} />
</Match>
<Match when={digith.tag === 'fn'}>
<FunctionDigith function={digith as Digith.Function} />
</Match>
</Switch>
</DigithWrapper>
)}
</For>
</div>
);
}
// For focusing on a Digith
// This works basically in two ways:
// - We have the list of digiths, and each time any of them is mounted, there's `attemptScroll` check done on all of them.
// - Whenever `scrowl.focusTarget` changes, it reactively broadcasts the change to each of the digith,
// and each digith asks itself, "Am I focus-target?".
function DigithWrapper(props: { id: DigithId, children: any }) {
let ref: HTMLDivElement | undefined;
// The Logic: Run this whenever 'scrowl.focusTarget' changes OR when this component mounts
const attemptScroll = () => {
if (scrowl.focusTarget === props.id && ref) {
ref.scrollIntoView({ behavior: "smooth", block: "start" });
setTimeout(clearFocus, 0); // This sets asynchronously the focus-target to null.
}
};
onMount(attemptScroll);
createEffect(attemptScroll);
return (
<div
ref={ref}
style={{ "scroll-margin-top": "2rem" }}
>
{props.children}
</div>
);
}