51:I[314491,["/_next/static/immutable/chunks/3arlv5bvukoo2.js","/_next/static/immutable/chunks/39v64hmfyo-sr.js","/_next/static/immutable/chunks/2nvof3-29tvc3.js","/_next/static/immutable/chunks/3tjobt77z_9dj.js","/_next/static/immutable/chunks/04j_o97cgxn2x.js","/_next/static/immutable/chunks/3upr08c9vtj8w.js","/_next/static/immutable/chunks/1ww0328si-u8x.js","/_next/static/immutable/chunks/11mfl5ymqld9-.js","/_next/static/immutable/chunks/2xxcqy6ppds3l.js","/_next/static/immutable/chunks/3j06ow7w40nxu.js","/_next/static/immutable/chunks/31nn7jwsjvqii.js","/_next/static/immutable/chunks/43_s7jweyypoh.js","/_next/static/immutable/chunks/0p6vao205o1jc.js","/_next/static/immutable/chunks/1_kyvgkyokw92.js","/_next/static/immutable/chunks/1lo-zn37dolb5.js","/_next/static/immutable/chunks/1v8k6yxw1rg0u.js"],"FilesView"] 52:T1831,"use client"; import { useRef, useState } from "react"; import type { AnimationEvent as ReactAnimationEvent, KeyboardEvent as ReactKeyboardEvent, PointerEvent as ReactPointerEvent } from "react"; const MIN = 0; const MAX = 100; const PIXELS_PER_STEP = 2; const DRAG_THRESHOLD = 3; /* The two speeds a design tool trains your hands to expect, on the keys it trains them to reach for. */ const stepFor = (event: { altKey: boolean; shiftKey: boolean }) => (event.shiftKey ? 10 : event.altKey ? 0.1 : 1); const round = (value: number) => Math.round(value * 10) / 10; const clamp = (value: number) => Math.min(MAX, Math.max(MIN, value)); const numeric = (raw: string) => raw.replace(/[^\d.]/g, "").replace(/(\..*)\./g, "$1"); const nudgeKeyframes = ` @keyframes scrub-number-nudge { 0%, 100% { transform: translateX(0); } 40% { transform: translateX(var(--scrub-nudge)); } } @media (prefers-reduced-motion: reduce) { @keyframes scrub-number-nudge { 0%, 100% { transform: none; } } }`; export function ScrubNumberField() { const [value, setValue] = useState(48); const [draft, setDraft] = useState(null); const [scrubbing, setScrubbing] = useState(false); const [bound, setBound] = useState<"min" | "max" | null>(null); const inputRef = useRef(null); const drag = useRef({ origin: 0, base: 48, value: 48, step: 1, pinned: "", moved: false }); const reverting = useRef(false); const startScrub = (event: ReactPointerEvent) => { /* Once you are typing the field is a text input again, and dragging selects characters the way it should. */ if (event.button !== 0 || document.activeElement === inputRef.current) return; event.preventDefault(); event.currentTarget.setPointerCapture(event.pointerId); drag.current = { origin: event.clientX, base: value, value, step: stepFor(event), pinned: "", moved: false }; }; const moveScrub = (event: ReactPointerEvent) => { if (!event.currentTarget.hasPointerCapture(event.pointerId)) return; /* Reaching for Shift mid-drag re-bases the gesture instead of multiplying the pixels already travelled. */ const held = stepFor(event); if (held !== drag.current.step) { drag.current = { ...drag.current, origin: event.clientX, base: drag.current.value, step: held, moved: true }; } const travel = event.clientX - drag.current.origin; if (!drag.current.moved && Math.abs(travel) < DRAG_THRESHOLD) return; drag.current.moved = true; setScrubbing(true); const wanted = round(drag.current.base + Math.round(travel / PIXELS_PER_STEP) * held); const pinned = wanted > MAX ? "max" : wanted < MIN ? "min" : ""; if (pinned && pinned !== drag.current.pinned) setBound(pinned); drag.current.pinned = pinned; drag.current.value = clamp(wanted); setValue(drag.current.value); }; const endScrub = (event: ReactPointerEvent) => { if (!event.currentTarget.hasPointerCapture(event.pointerId)) return; event.currentTarget.releasePointerCapture(event.pointerId); setScrubbing(false); /* A press that never travelled is a click, and a click hands the field over for typing. */ if (!drag.current.moved) { inputRef.current?.focus(); inputRef.current?.select(); } }; const settle = (next: number) => { const clamped = clamp(round(next)); if (clamped !== round(next)) setBound(clamped === MIN ? "min" : "max"); drag.current.value = clamped; setValue(clamped); setDraft(null); }; const commit = () => { const parsed = draft === null ? Number.NaN : Number.parseFloat(draft); /* Escape blurs the field, and the blur that follows must not commit the draft Escape just threw away. */ if (!reverting.current && Number.isFinite(parsed)) settle(parsed); reverting.current = false; setDraft(null); }; const handleKey = (event: ReactKeyboardEvent) => { if (event.key === "Enter") { event.preventDefault(); commit(); event.currentTarget.blur(); return; } if (event.key === "Escape") { reverting.current = true; event.currentTarget.blur(); return; } const direction = event.key === "ArrowUp" ? 1 : event.key === "ArrowDown" ? -1 : 0; if (!direction) return; event.preventDefault(); settle(value + direction * stepFor(event)); }; /* The nudge clears itself when it finishes, so a bound can be hit again the moment the field is still. */ const clearBound = (event: ReactAnimationEvent) => { if (event.animationName === "scrub-number-nudge") setBound(null); }; return ( <>

setDraft(numeric(event.target.value))} onKeyDown={handleKey} onBlur={commit} />

); } 50:["$","div",null,{"className":"mt-3 flex min-h-0 min-w-0 flex-1 flex-col gap-3","children":[null,["$","$L51",null,{"files":[{"path":"registry/microkit/scrub-number-field.tsx","content":"$52","type":"registry:component","target":"@components/microkit/scrub-number-field.tsx"}],"className":"h-[70svh] min-h-80"}]]}]