{options.map(o => )}
;
}
if (variable.type === "enum") {
return ;
}
if (variable.type === "number") {
const min = Number(variable.min);
const max = Number(variable.max);
const unit = variable.unit ?? "";
const declaredStep = Number(variable.step);
const step = declaredStep > 0 ? declaredStep : 1;
const label = variable.label ?? variable.id;
if (!(Number.isFinite(min) && Number.isFinite(max) && max > min)) {
return 0 ? declaredStep : granularity(variable.default)} aria-label={label} onChange={e => {
const next = Number(e.target.value);
if (e.target.value !== "" && Number.isFinite(next)) onChange(next);
}} />;
}
const at = n => Math.min(1, Math.max(0, (Number(n) - min) / (max - min)));
const now = at(value);
const authored = at(variable.default);
const place = fraction => ({
offset: `${fraction * 100}%`,
nudge: `${(0.5 - fraction) * 16}px`
});
const value_ = place(now);
const default_ = place(authored);
const grain = event => {
event.currentTarget.step = event.shiftKey ? step / 10 : step;
};
return
{}
;
}
if (variable.type === "boolean") {
const on = value === true || value === "true";
return ;
}
if (variable.type === "color") {
return 0.86 ? "max" : ""} aria-hidden="true">
{min}
{max}
{value}
{unit}
onChange(Number(e.target.value))} onPointerDown={grain} onKeyDown={grain} onDoubleClick={() => onChange(variable.default)} />
{}
{Math.abs(now - authored) > 0.04 && }
onChange(e.target.value)} />
onChange(e.target.value)} onFocus={() => onTyping(variable.id)} onBlur={() => onTyping(null)} onKeyDown={e => {
if (e.key === "Enter") e.currentTarget.blur();
}} />
;
}
if (isSvgPathData(variable.default)) {
const fileId = `hf-ve-file-${variable.id}`;
const noteId = `hf-ve-note-${variable.id}`;
const receive = file => {
if (!file) return;
file.text().then(text => {
const {d, shapes} = svgToPathData(text, variable.default);
onChange(d);
onNote({
tone: "ok",
message: `${file.name}: ${shapes} shape${shapes === 1 ? "" : "s"} scaled to fit.`
});
}).catch(error => onNote({
tone: "error",
message: error.message
}));
};
return {
event.preventDefault();
event.currentTarget.dataset.over = "true";
}} onDragLeave={event => {
event.currentTarget.dataset.over = "false";
}} onDrop={event => {
event.preventDefault();
event.currentTarget.dataset.over = "false";
receive(event.dataTransfer.files[0]);
}}>
{}
;
}
return onChange(e.target.value)} onFocus={() => onTyping(variable.id)} onBlur={() => onTyping(null)} onKeyDown={e => {
if (e.key === "Enter") e.currentTarget.blur();
}} />;
};
const variablesKey = JSON.stringify(variables);
const defaults = useMemo(() => {
const built = {};
for (const v of variables) if (v.default !== undefined) built[v.id] = v.default;
return built;
}, [variablesKey]);
const urlKey = `vars-${compositionId}`;
const readFromUrl = () => {
if (typeof window === "undefined") return {};
try {
const raw = new URLSearchParams(window.location.search).get(urlKey);
if (!raw) return {};
const parsed = JSON.parse(raw);
if (!parsed || typeof parsed !== "object" || Array.isArray(parsed)) return {};
const declared = new Set(variables.map(v => v.id));
return Object.fromEntries(Object.entries(parsed).filter(([id]) => declared.has(id)));
} catch {
return {};
}
};
const [values, setValues] = useState(() => ({
...defaults,
...readFromUrl()
}));
useEffect(() => {
const fromUrl = readFromUrl();
if (Object.keys(fromUrl).length > 0) setValues(current => ({
...current,
...fromUrl
}));
}, []);
useEffect(() => {
if (typeof window === "undefined") return;
const changed = Object.fromEntries(Object.entries(values).filter(([id, value]) => JSON.stringify(value) !== JSON.stringify(defaults[id])));
const url = new URL(window.location.href);
if (Object.keys(changed).length === 0) url.searchParams.delete(urlKey); else url.searchParams.set(urlKey, JSON.stringify(changed));
const next = url.toString();
if (next !== window.location.href) {
window.history.replaceState(null, "", next);
window.dispatchEvent(new CustomEvent("hf-vars-changed"));
}
}, [values, defaults, urlKey]);
const [notes, setNotes] = useState({});
const [typing, setTyping] = useState(null);
const posted = useRef(null);
const frame = useRef(null);
const bootstrap = ["", "", '
{
receive(event.target.files[0]);
event.target.value = "";
}} />
{}
{note ? note.message : "Or drop one here. Scaled to fit and centred."}
Path data
onChange(e.target.value)} onFocus={() => onTyping(variable.id)} onBlur={() => onTyping(null)} onKeyDown={e => { if (e.key === "Enter") e.currentTarget.blur(); }} />
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SHIP VIDEO
FROM HTML
