update to save state into the hash

This commit is contained in:
Michael Zhang 2024-10-19 19:59:22 -05:00
parent 069a35e959
commit 8687f60b0e
7 changed files with 151 additions and 43 deletions

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bun.lockb

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@ -1,4 +1,4 @@
import { Canvas } from "@react-three/fiber";
import { Canvas, useThree } from "@react-three/fiber";
import { OrbitControls } from "@react-three/drei";
import styles from "./styles.module.scss";
@ -6,39 +6,105 @@ import "katex/dist/katex.min.css";
import Point from "./components/Point";
import Path from "./components/Path";
import { SettingsBox } from "./SettingsContext";
import { useCallback, useState } from "react";
import { atom, useAtom, useSetAtom } from "jotai";
// https://threejs.org/manual/#en/align-html-elements-to-3d
type coord = [number, number, number];
const coords: coord[] = [
[0, 0, 0],
[0, 0, 1],
[0, 1, 0],
[0, 1, 1],
[1, 0, 0],
[1, 0, 1],
[1, 1, 0],
[1, 1, 1],
];
const ppCoord = (c: coord): string => c.map((n) => n.toString()).join("");
const offset = (a: coord): coord => [a[0] - 0.5, a[1] - 0.5, a[2] - 0.5];
const offsetCoords: [string, coord][] = coords.map((a) => [
ppCoord(a),
offset(a),
]);
function getInitialValue() {
try {
const h = location.hash;
if (h.length === 0) return defaultValues;
return JSON.parse(atob(h.replace("#", "")));
} catch (e) {
console.log("error", e);
return defaultValues;
}
}
export const stateAtom = atom<{ [_: string]: string }>(getInitialValue());
export const updateStateAtom = atom(null, (get, set, newValue) => {
set(stateAtom, newValue);
location.hash = btoa(JSON.stringify(newValue));
});
function AdjustCamera() {
useThree(({ camera }) => {
camera.position.z = 2;
});
return <></>;
}
const paths: [string, [coord, coord]][] = offsetCoords
.flatMap((a) => offsetCoords.map((b) => [a, b]))
.filter(
([[_a, [a1, a2, a3]], [_b, [b1, b2, b3]]]) =>
[a1 === b1 ? 1 : 0, a2 === b2 ? 1 : 0, a3 === b3 ? 1 : 0].reduce(
(x, y) => x + y
) === 2 &&
a1 <= b1 &&
a2 <= b2 &&
a3 <= b3
)
.map(([[aname, acoord], [bname, bcoord]]) => [
aname + bname,
[acoord, bcoord],
]);
const defaultValues: [string, string] = Object.fromEntries([
...offsetCoords.map(([a]) => [a, ""]),
...paths.map(([a]) => [a, ""]),
]);
function parseCoord(s: string): coord {
return offset(s.split("").map((n) => parseInt(n)));
}
function parsePath(s: string): [coord, coord] {
return [parseCoord(s.substring(0, 3)), parseCoord(s.substring(3, 6))];
}
function App() {
let coords: [number, number, number][] = [
[0, 0, 0],
[0, 0, 1],
[0, 1, 0],
[0, 1, 1],
[1, 0, 0],
[1, 0, 1],
[1, 1, 0],
[1, 1, 1],
];
const [state] = useAtom(stateAtom);
const updateStateFunc = useSetAtom(updateStateAtom);
coords = coords.map((a) => [a[0] - 0.5, a[1] - 0.5, a[2] - 0.5]);
console.log("state", state);
const paths = coords
.flatMap((a) => coords.map((b) => [a, b]))
.filter(
([[a1, a2, a3], [b1, b2, b3]]) =>
[a1 === b1 ? 1 : 0, a2 === b2 ? 1 : 0, a3 === b3 ? 1 : 0].reduce(
(x, y) => x + y,
) === 2 &&
a1 <= b1 &&
a2 <= b2 &&
a3 <= b3,
);
const updateState = useCallback(
(z: string, value: string) => {
const newState = { ...state, [z]: value };
updateStateFunc(newState);
},
[state]
);
return (
<div className={styles.container}>
<SettingsBox />
<Canvas className={styles.canvas}>
<AdjustCamera />
<OrbitControls />
<ambientLight intensity={Math.PI / 2} />
<spotLight
@ -50,17 +116,34 @@ function App() {
/>
<pointLight position={[-10, -10, -10]} decay={0} intensity={Math.PI} />
{coords.map((coord) => (
<Point key={JSON.stringify(coord)} coord={coord} />
))}
{paths.map(([start, end]) => (
<Path key={JSON.stringify([start, end])} start={start} end={end} />
))}
{Object.entries(state).map(([thing, value]) => {
if (thing.length === 6) {
const [start, end] = parsePath(thing);
return (
<Path
key={thing}
start={start}
end={end}
onEdit={(newValue) => updateState(thing, newValue)}
value={value}
/>
);
} else if (thing.length === 3) {
const coord = parseCoord(thing);
return (
<Point
key={thing}
coord={coord}
onEdit={(newValue) => updateState(thing, newValue)}
value={value}
/>
);
}
})}
</Canvas>
<div className={styles.footer}>
<a
href="https://git.sr.ht/~mzhang/cubeviz"
href="https://git.mzhang.io/michael/cubeviz"
target="_blank"
rel="noreferrer noopener"
>

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@ -1,13 +1,25 @@
import { atom, useAtom } from "jotai";
import { atom, useAtom, useAtomValue, useSetAtom } from "jotai";
import styles from "./styles.module.scss";
import { stateAtom, updateStateAtom } from "./App";
import { useCallback } from "react";
export const showEmptyAtom = atom(true);
export function SettingsBox() {
const state = useAtomValue(stateAtom);
const updateState = useSetAtom(updateStateAtom);
const [showEmpty, setShowEmpty] = useAtom(showEmptyAtom);
const doClear = useCallback(() => {
updateState(
Object.fromEntries(Object.entries(state).map(([a, _]) => [a, ""]))
);
}, [state]);
return (
<div className={styles.header}>
<button onClick={doClear}>Clear</button>
<input
type="checkbox"
id="showEmptyCheckbox"

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@ -1,5 +1,6 @@
.editBox {
padding: 4px;
transform: translateX(-50%) translateY(-50%);
}
.empty {

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@ -1,27 +1,35 @@
import { type FormEvent, useCallback, useState } from "react";
import { type FormEvent, useCallback, useEffect, useState } from "react";
import { BlockMath } from "react-katex";
import styles from "./EditBox.module.scss";
import { showEmptyAtom } from "../SettingsContext";
import { useAtomValue } from "jotai";
// export interface EditBoxProps {}
export interface EditBoxProps {
value: string;
onUpdate?: (newValue: string) => void;
}
export default function EditBox() {
const [value, setValue] = useState("");
export default function EditBox({ onUpdate, value }: EditBoxProps) {
const [innerValue, setInnerValue] = useState("");
const [isEditing, setIsEditing] = useState(false);
const showEmpty = useAtomValue(showEmptyAtom);
useEffect(() => {
setInnerValue(value);
}, [value]);
const handleDblClick = useCallback(() => {
if (!isEditing) setIsEditing(true);
}, [isEditing]);
const done = useCallback(
(evt: FormEvent) => {
onUpdate?.(innerValue);
evt.preventDefault();
if (isEditing) setIsEditing(false);
},
[isEditing],
[value, isEditing, innerValue]
);
return (
@ -32,8 +40,8 @@ export default function EditBox() {
// biome-ignore lint/a11y/noAutofocus: <explanation>
autoFocus={true}
onBlur={done}
value={value}
onChange={(evt) => setValue(evt.target.value)}
value={innerValue}
onChange={(evt) => setInnerValue(evt.target.value)}
placeholder="Type latex code..."
/>
</form>

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@ -8,9 +8,11 @@ extend({ MeshLineGeometry, MeshLineMaterial });
export interface PointProps {
start: [number, number, number];
end: [number, number, number];
value: string;
onEdit?: (newValue: string) => void;
}
export default function Path({ start, end }: PointProps) {
export default function Path({ start, end, onEdit, value }: PointProps) {
const midpoint: [number, number, number] = [
(start[0] + end[0]) / 2.0,
(start[1] + end[1]) / 2.0,
@ -23,7 +25,7 @@ export default function Path({ start, end }: PointProps) {
<meshBasicMaterial />
</Line>
<Html position={midpoint}>
<EditBox />
<EditBox value={value} onUpdate={onEdit} />
</Html>
</>
);

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@ -3,16 +3,18 @@ import EditBox from "./EditBox";
export interface PointProps {
coord: [number, number, number];
value: string;
onEdit?: (newValue: string) => void;
}
export default function Point({ coord }: PointProps) {
export default function Point({ coord, onEdit, value }: PointProps) {
return (
<mesh position={coord}>
<sphereGeometry args={[0.05]} />
<meshStandardMaterial color="gray" />
<Html>
<EditBox />
<EditBox value={value} onUpdate={onEdit} />
</Html>
</mesh>
);