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border-radius: 999px; background: var(--bjork-thumb); box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18), 0 0 0 1px rgba(0, 0, 0, 0.42); } .bjork-range::-moz-range-thumb { width: 16px; height: 8px; border: 0; border-radius: 999px; background: var(--bjork-thumb); box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18), 0 0 0 1px rgba(0, 0, 0, 0.42); } .bjork-layered-button-accent, .bjork-layered-button-raised { position: relative; isolation: isolate; appearance: none; overflow: hidden; border: 0; border-radius: 13px; box-shadow: inset 0 1px 0 #ffffff38, 0 4px 6px -1px #0000001a, 0 2px 4px -2px #0000001a; transition: filter 150ms ease-out, box-shadow 150ms ease-out; } .bjork-layered-button-accent::after, .bjork-layered-button-raised::after { position: absolute; inset: 0; pointer-events: none; content: ""; border: 1.5px solid transparent; border-radius: inherit; background: linear-gradient(#ffffffb8, #0000003d 41% 75%, #ffffff47) border-box; mix-blend-mode: overlay; -webkit-mask-image: linear-gradient(#000, #000), linear-gradient(#000, #000); mask-image: linear-gradient(#000, #000), linear-gradient(#000, #000); -webkit-mask-clip: padding-box, border-box; mask-clip: padding-box, border-box; -webkit-mask-origin: padding-box, border-box; mask-origin: padding-box, border-box; -webkit-mask-composite: xor; mask-composite: exclude; } .bjork-layered-button-accent { color: oklch(100% 0 0); text-shadow: 0 -1px #00000040; background: radial-gradient(ellipse at -20px top, rgba(255, 255, 255, 0.14), transparent), linear-gradient(180deg, #ec5c13 0%, #ec5c13 62%, color-mix(in oklab, #ec5c13 84%, black 16%) 100%); } .bjork-layered-button-raised { color: oklch(100% 0 0); text-shadow: 0 -1px #00000026; background: radial-gradient(ellipse at -20px top, #ffffff38, #fff0), linear-gradient(180deg, oklch(0.1881 0.006 265), oklch(0.5493 0.0081 265)); } .dark .bjork-layered-button-raised { color: oklch(0.2574 0.0056 265); text-shadow: 0 -1px #00000026; background: radial-gradient(ellipse at 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roundRectPath } from "@/components/bjork-ui/charts/_kit/canvas"; import { useChartTheme, chartFocusRing, ChartTable, placeTooltip, HoverTooltip, ChartAnnouncer, type ChartPalette, type TooltipHandle, type AnnouncerHandle, type TooltipContent, } from "@/components/bjork-ui/charts/_kit/chrome"; import { clamp, damp, withAlpha, mixColor, formatCompact, formatPercent, formatSigned } from "@/components/bjork-ui/charts/_kit/scale"; export interface TreeNode { id: string; label: string; /** Leaf size. Groups sum their children. */ value?: number; /** Optional change, e.g. 0.012 for +1.2%, which drives the diverging colour. */ change?: number; children?: TreeNode[]; } export interface TreemapProps { data: TreeNode; /** Current zoom root. Uncontrolled by default. */ rootId?: string; onRootChange?: (id: string) => void; /** "change" colours by `change` on a diverging scale (accent up, blue down, stage at zero). "value" grades ink by size. */ colorBy?: "change" | "value"; /** |change| that reaches full intensity. */ changeScale?: number; formatValue?: (v: number) => string; formatChange?: (c: number) => string; /** Posed hover leaf id. */ activeId?: string | null; height?: number; ariaLabel?: string; tone?: BjorkTone; attract?: boolean; className?: string; } interface Rect { x: number; y: number; w: number; h: number; } interface Flat { node: TreeNode; value: number; change: number | null; parent: string | null; depth: number; } const BREAD_H = 30; const HEADER_H = 20; const GROUP_GAP = 4; const LEAF_GAP = 2; const RECT_TAU = 0.13; const ALPHA_TAU = 0.1; const MAX_LABELS = 80; const ATTRACT_STEP_MS = 3200; const ATTRACT_IDLE_MS = 4000; const clock = () => performance.now(); const defaultFormatValue = (v: number) => `$${formatCompact(v, 1)}`; const defaultFormatChange = (c: number) => formatSigned(c, (n) => formatPercent(n, 1)); function flatten(root: TreeNode): Map { const map = new Map(); const walk = (n: TreeNode, parent: string | null, depth: number): { value: number; weighted: number; hasChange: boolean } => { let value = 0; let weighted = 0; let hasChange = n.change !== undefined; if (n.children?.length) { for (const c of n.children) { const r = walk(c, n.id, depth + 1); value += r.value; weighted += r.weighted; hasChange = hasChange || r.hasChange; } } else { value = Math.max(0, n.value ?? 0); weighted = value * (n.change ?? 0); } const change = n.change !== undefined ? n.change : hasChange && value > 0 ? weighted / value : null; map.set(n.id, { node: n, value, change, parent, depth }); return { value, weighted: change !== null ? change * value : 0, hasChange }; }; walk(root, null, 0); return map; } // Squarified treemap (Bruls et al.): rows that keep tiles as close to square as possible. function squarify(items: { id: string; value: number }[], r: Rect): Map { const out = new Map(); const list = items.filter((i) => i.value > 0).sort((a, b) => b.value - a.value); const total = list.reduce((s, i) => s + i.value, 0); if (!list.length || r.w <= 0 || r.h <= 0) return out; const scale = (r.w * r.h) / total; let { x, y, w, h } = r; let row: { id: string; a: number }[] = []; const worst = (rw: { a: number }[], side: number) => { const sum = rw.reduce((s, i) => s + i.a, 0); let mx = 0; let mn = Infinity; for (const i of rw) { mx = Math.max(mx, i.a); mn = Math.min(mn, i.a); } return Math.max((side * side * mx) / (sum * sum), (sum * sum) / (side * side * mn)); }; const layoutRow = (rw: { id: string; a: number }[]) => { const sum = rw.reduce((s, i) => s + i.a, 0); if (w >= h) { const cw = sum / h; let cy = y; for (const i of rw) { const ch = i.a / cw; out.set(i.id, { x, y: cy, w: cw, h: ch }); cy += ch; } x += cw; w -= cw; } else { const ch = sum / w; let cx = x; for (const i of rw) { const cw = i.a / ch; out.set(i.id, { x: cx, y, w: cw, h: ch }); cx += cw; } y += ch; h -= ch; } }; for (const it of list) { const a = it.value * scale; const side = Math.min(w, h); if (!row.length || worst([...row, { a }], side) <= worst(row, side)) row.push({ id: it.id, a }); else { layoutRow(row); row = [{ id: it.id, a }]; } } if (row.length) layoutRow(row); return out; } interface Tile { id: string; kind: "leaf" | "group"; target: Rect; r: Rect; alpha: number; targetAlpha: number; } function inset(r: Rect, d: number): Rect { return { x: r.x + d / 2, y: r.y + d / 2, w: Math.max(0, r.w - d), h: Math.max(0, r.h - d) }; } // Maps rect `t` from frame `from` into frame `to`. function mapRect(t: Rect, from: Rect, to: Rect): Rect { const sx = to.w / Math.max(1e-6, from.w); const sy = to.h / Math.max(1e-6, from.h); return { x: to.x + (t.x - from.x) * sx, y: to.y + (t.y - from.y) * sy, w: t.w * sx, h: t.h * sy }; } // Negative pole of the diverging change scale: a CVD-safe partner for the accent. It carries // meaning (loss), so it is pinned here and not read from the categorical series order. const DOWN_COLOR: Record = { dark: "#3987e5", light: "#2a78d6" }; const downColor = (tone: BjorkTone) => DOWN_COLOR[tone]; function changeFill(pal: ChartPalette, tone: BjorkTone, change: number, scale: number): string { const k = clamp(Math.abs(change) / scale, 0, 1); // Capped below full strength: a large tile never becomes a saturated block. const a = 0.06 + 0.58 * Math.pow(k, 0.8); return mixColor(pal.stage, change >= 0 ? pal.accent : downColor(tone), a); } function tileFill(pal: ChartPalette, tone: BjorkTone, colorBy: "change" | "value", change: number | null, valueRank: number, scale: number): { fill: string; strong: boolean } { if (colorBy === "change" && change !== null) return { fill: changeFill(pal, tone, change, scale), strong: false }; const a = 0.08 + 0.3 * valueRank; return { fill: mixColor(pal.stage, pal.text, a), strong: false }; } interface Run { tiles: Map; layoutKey: string; plot: Rect; hover: string | null; source: "pointer" | "keyboard" | "prop" | "attract" | null; zoomFrom: { id: string; rect: Rect; dir: "in" | "out" } | null; labelKey: string[]; lastInput: number; attractAt: number; } export function Treemap({ data, rootId: rootProp, onRootChange, colorBy, changeScale = 0.03, formatValue = defaultFormatValue, formatChange = defaultFormatChange, activeId, height = 420, ariaLabel = "Treemap", tone: toneProp, attract = false, className, }: TreemapProps) { const { tone, pal, reduce, vars } = useChartTheme(toneProp); const announcer = useRef(null); const tipRef = useRef(null); const wrapperRef = useRef(null); const labelPool = useRef<(HTMLDivElement | null)[]>([]); const rectRef = useRef(null); const flat = useMemo(() => flatten(data), [data]); const [rootState, setRootState] = useState(data.id); const rootId = rootProp ?? (flat.has(rootState) ? rootState : data.id); const mode = colorBy ?? ([...flat.values()].some((f) => f.change !== null) ? "change" : "value"); // The path from the tree root to the zoom root, for breadcrumbs. const path = useMemo(() => { const out: Flat[] = []; let cur: string | null = rootId; while (cur) { const f = flat.get(cur); if (!f) break; out.unshift(f); cur = f.parent; } return out; }, [flat, rootId]); const cfg = useRef({ flat, rootId, mode, changeScale, reduce, pal, tone, formatValue, formatChange, attract }); useEffect(() => { cfg.current = { flat, rootId, mode, changeScale, reduce, pal, tone, formatValue, formatChange, attract }; }); const st = useRef({ tiles: new Map(), layoutKey: "", plot: { x: 0, y: 0, w: 0, h: 0 }, hover: null, source: null, zoomFrom: null, labelKey: [], lastInput: 0, attractAt: 0, }); const rootSetter = useRef<(id: string, announce: boolean) => void>(() => {}); const { rootRef, hostRef, canvasRef, wake } = useChartCanvas(({ ctx, w, h, dt }) => { const s = st.current; const c = cfg.current; const p = c.pal; const F = c.flat; const plot: Rect = { x: 0, y: BREAD_H, w, h: h - BREAD_H }; s.plot = plot; // Two-level layout of the zoom root: its children as groups, their children as leaves. const key = `${c.rootId}|${w}|${h}`; if (key !== s.layoutKey) { const root = F.get(c.rootId); const targets = new Map(); if (root) { const kids = root.node.children ?? [root.node]; const outer = squarify( kids.map((k) => ({ id: k.id, value: F.get(k.id)?.value ?? 0 })), plot, ); for (const k of kids) { const r = outer.get(k.id); if (!r) continue; const g = inset(r, GROUP_GAP); if (k.children?.length && g.h > HEADER_H + 24 && g.w > 40) { targets.set(k.id, { r: g, kind: "group" }); const body = { x: g.x, y: g.y + HEADER_H, w: g.w, h: g.h - HEADER_H }; const inner = squarify( k.children.map((gc) => ({ id: gc.id, value: F.get(gc.id)?.value ?? 0 })), body, ); for (const gc of k.children) { const ir = inner.get(gc.id); if (ir) targets.set(gc.id, { r: inset(ir, LEAF_GAP), kind: "leaf" }); } } else targets.set(k.id, { r: g, kind: "leaf" }); } } const first = !s.layoutKey || c.reduce; const zf = s.zoomFrom; // Entering tiles start where the zoom implies; leaving tiles fly out the same way. for (const [id, t] of targets) { const existing = s.tiles.get(id); if (existing) { existing.target = t.r; existing.kind = t.kind; existing.targetAlpha = 1; } else { let start = t.r; if (!first && zf) start = zf.dir === "in" ? mapRect(t.r, plot, zf.rect) : mapRect(t.r, zf.rect, plot); s.tiles.set(id, { id, kind: t.kind, target: t.r, r: { ...start }, alpha: first ? 1 : 0, targetAlpha: 1 }); } } for (const [id, tile] of s.tiles) { if (targets.has(id)) continue; tile.targetAlpha = 0; if (zf) tile.target = zf.dir === "in" ? mapRect(tile.r, zf.rect, plot) : mapRect(tile.r, plot, zf.rect); } if (first) for (const tile of s.tiles.values()) tile.r = { ...tile.target }; s.layoutKey = key; s.zoomFrom = null; } let moving = false; for (const [id, t] of s.tiles) { if (c.reduce) { t.r = { ...t.target }; t.alpha = t.targetAlpha; } else { t.r.x = damp(t.r.x, t.target.x, RECT_TAU, dt); t.r.y = damp(t.r.y, t.target.y, RECT_TAU, dt); t.r.w = damp(t.r.w, t.target.w, RECT_TAU, dt); t.r.h = damp(t.r.h, t.target.h, RECT_TAU, dt); t.alpha = damp(t.alpha, t.targetAlpha, ALPHA_TAU, dt); const err = Math.abs(t.r.x - t.target.x) + Math.abs(t.r.y - t.target.y) + Math.abs(t.r.w - t.target.w) + Math.abs(t.r.h - t.target.h); if (err > 0.2 || Math.abs(t.alpha - t.targetAlpha) > 0.01) moving = true; else { t.r = { ...t.target }; t.alpha = t.targetAlpha; } } if (t.targetAlpha === 0 && t.alpha < 0.01) s.tiles.delete(id); } // Value rank for "value" colouring, within the current view. const leaves = [...s.tiles.values()].filter((t) => t.kind === "leaf"); const vals = leaves.map((t) => F.get(t.id)?.value ?? 0).sort((a, b) => a - b); const rankOf = (v: number) => (vals.length > 1 ? vals.indexOf(v) / (vals.length - 1) : 1); ctx.save(); ctx.beginPath(); ctx.rect(0, BREAD_H, w, h - BREAD_H); ctx.clip(); const labels: { id: string; r: Rect; strong: boolean; alpha: number; group: boolean }[] = []; // Groups first (their header strip), then leaves. for (const t of s.tiles.values()) { if (t.kind !== "group" || t.alpha < 0.01) continue; ctx.globalAlpha = t.alpha; ctx.fillStyle = withAlpha(p.text, 0.04); ctx.beginPath(); roundRectPath(ctx, t.r.x, t.r.y, t.r.w, t.r.h, 6, 6); ctx.fill(); labels.push({ id: t.id, r: t.r, strong: false, alpha: t.alpha, group: true }); } for (const t of s.tiles.values()) { if (t.kind !== "leaf" || t.alpha < 0.01 || t.r.w < 0.5 || t.r.h < 0.5) continue; const f = F.get(t.id); const { fill, strong } = tileFill(p, c.tone, c.mode, f?.change ?? null, rankOf(f?.value ?? 0), c.changeScale); const hov = s.hover === t.id; ctx.globalAlpha = t.alpha * (s.hover && !hov ? 0.82 : 1); ctx.fillStyle = fill; ctx.beginPath(); roundRectPath(ctx, t.r.x, t.r.y, t.r.w, t.r.h, Math.min(4, t.r.w / 2, t.r.h / 2), Math.min(4, t.r.w / 2, t.r.h / 2)); ctx.fill(); if (hov) { ctx.globalAlpha = 1; ctx.lineWidth = 1.5; ctx.strokeStyle = p.text; ctx.stroke(); } // A tile too small to print its change keeps a minus bar when it fell, so sign never rests // on hue alone. Same fit rule as the value label below. const ch = c.mode === "change" ? (f?.change ?? null) : null; if (ch !== null && ch < 0 && t.r.w >= 14 && t.r.h >= 12) { const valShown = t.r.w - 12 >= c.formatChange(ch).length * 6.6 && t.r.h >= 40 && t.r.w - 12 >= Math.min((f?.node.label.length ?? 0) * 6.6, 52); if (!valShown) { const bw = Math.min(8, Math.max(4, Math.round(t.r.w * 0.3))); ctx.globalAlpha = t.alpha; ctx.fillStyle = withAlpha(p.text, 0.78); ctx.fillRect(Math.round(t.r.x + t.r.w - 5 - bw), Math.round(t.r.y + t.r.h - 6), bw, 1.5); } } labels.push({ id: t.id, r: t.r, strong, alpha: t.alpha, group: false }); } ctx.restore(); ctx.globalAlpha = 1; // Labels: name and value inside the tile, only when they fit (Geist Mono advance ~0.6em). for (let k = 0; k < MAX_LABELS; k++) { const el = labelPool.current[k]; if (!el) continue; const L = labels[k]; if (!L) { if (el.style.opacity !== "0") el.style.opacity = "0"; continue; } const f = F.get(L.id); if (!f) continue; const name = f.node.label; const val = c.mode === "change" && f.change !== null ? c.formatChange(f.change) : c.formatValue(f.value); const roomW = L.r.w - 12; // Names are proportional, so a long one truncates with an ellipsis instead of leaving the tile blank. const nameFits = roomW >= Math.min(name.length * 6.6, L.group ? 64 : 52) && L.r.h >= (L.group ? 16 : 22); const valFits = !L.group && val.length * 6.6 <= roomW && L.r.h >= 40; // Group names are uppercase and tracked (~9px a glyph at 11px); the value is mono (6.6px) after an 8px gap. const groupVal = L.group && name.length * 9 + 12 + val.length * 6.6 <= roomW; const textKey = `${L.id}|${nameFits}|${valFits}|${groupVal}|${val}|${L.strong}|${L.group}`; if (s.labelKey[k] !== textKey) { s.labelKey[k] = textKey; const [a, b] = el.children as unknown as HTMLElement[]; a.textContent = nameFits ? name : ""; b.textContent = (L.group ? groupVal : valFits) ? val : ""; el.dataset.strong = L.strong ? "1" : "0"; el.dataset.group = L.group ? "1" : "0"; } el.style.opacity = String(nameFits ? clamp((L.alpha - 0.5) * 2, 0, 1) : 0); el.style.transform = `translate3d(${(L.r.x + 7).toFixed(1)}px, ${(L.r.y + (L.group ? 5 : 8)).toFixed(1)}px, 0)`; el.style.maxWidth = `${Math.max(0, L.r.w - 12).toFixed(0)}px`; } const tip = tipRef.current; const ht = s.hover ? s.tiles.get(s.hover) : null; if (tip?.el && ht) { // Anchored on the tile centre: on a big tile the card sits inside it instead of over its neighbours. const pos = placeTooltip(ht.r.x + ht.r.w / 2, ht.r.y + ht.r.h / 2, tip.size.w, tip.size.h, w, h, 10); tip.el.style.transform = `translate3d(${pos.x}px, ${pos.y}px, 0)`; } // Attract: zoom into each group in turn, then back out. if (c.attract && !c.reduce && (!s.lastInput || clock() - s.lastInput > ATTRACT_IDLE_MS)) { if (clock() - s.attractAt > ATTRACT_STEP_MS) { s.attractAt = clock(); const top = F.get(data.id)?.node.children ?? []; const groupsOnly = top.filter((g) => g.children?.length); if (c.rootId !== data.id) rootSetter.current(data.id, false); else if (groupsOnly.length) rootSetter.current(groupsOnly[Math.floor((s.attractAt / ATTRACT_STEP_MS) % groupsOnly.length)].id, false); } return true; } return moving; }); const valueOf = (id: string) => flat.get(id)?.value ?? 0; const tooltipFor = (id: string): TooltipContent | null => { const f = flat.get(id); if (!f) return null; const parent = f.parent ? flat.get(f.parent) : null; return { key: `${id}|${pal.text}|${tone}`, title: parent && parent.node.id !== data.id ? parent.node.label : undefined, rows: [ { key: "v", label: f.node.label, value: formatValue(f.value) }, ...(parent ? [{ key: "s", label: `of ${parent.node.label}`, value: formatPercent(f.value / Math.max(1e-12, parent.value), 1), strong: false }] : []), ...(f.change !== null ? [{ key: "c", label: "Change", value: formatChange(f.change), color: f.change >= 0 ? pal.accent : downColor(tone) }] : []), ], }; }; const setHover = (id: string | null, source: Run["source"]) => { const s = st.current; if (s.hover === id && s.source === source) return; s.hover = id; s.source = id === null ? null : source; tipRef.current?.set(id === null ? null : tooltipFor(id)); if (id && source === "keyboard") { const f = flat.get(id); if (f) announcer.current?.say(`${f.node.label}: ${formatValue(f.value)}${f.change !== null ? `, ${formatChange(f.change)}` : ""}`); } wake(); }; const setRoot = (id: string, announce = true) => { const s = st.current; const f = flat.get(id); if (!f || id === rootId) return; const target = f.node.children?.length ? id : (f.parent ?? data.id); if (target === rootId) return; // Zoom in when the target is inside the current view, out otherwise. const tile = s.tiles.get(target); if (tile) s.zoomFrom = { id: target, rect: { ...tile.r }, dir: "in" }; else { // Zooming out: the current root becomes a tile of the new layout; animate from the full plot into it. s.zoomFrom = { id: rootId, rect: s.plot, dir: "out" }; } if (rootProp === undefined) setRootState(target); onRootChange?.(target); setHover(null, null); if (announce) announcer.current?.say(`${flat.get(target)?.node.label ?? ""}, ${formatValue(valueOf(target))}`); wake(); }; useEffect(() => { rootSetter.current = setRoot; }); // Zooming out needs the old root's rect in the new layout, known only after layout. Patch it in the loop: // the "out" zoom maps from the full plot into wherever the old root lands. useEffect(() => { const s = st.current; if (s.zoomFrom?.dir === "out") { // Compute where the old root lands at the new zoom root, using the same layout as the loop. const root = flat.get(rootId); const kids = root?.node.children ?? []; const outer = squarify( kids.map((k) => ({ id: k.id, value: flat.get(k.id)?.value ?? 0 })), s.plot, ); const r = outer.get(s.zoomFrom.id); if (r) s.zoomFrom.rect = inset(r, GROUP_GAP); } wake(); }, [rootId, flat, wake]); useEffect(() => { st.current.layoutKey = ""; wake(); }, [data, wake]); useEffect(() => { wake(); }, [mode, changeScale, pal, reduce, attract, wake]); useEffect(() => { if (activeId === undefined) return; setHover(activeId, activeId ? "prop" : null); // eslint-disable-next-line react-hooks/exhaustive-deps }, [activeId]); const hitTest = (x: number, y: number): { leaf: string | null; group: string | null } => { const s = st.current; let leaf: string | null = null; let group: string | null = null; for (const t of s.tiles.values()) { if (t.targetAlpha < 1) continue; const inside = x >= t.r.x - 1 && x <= t.r.x + t.r.w + 1 && y >= t.r.y - 1 && y <= t.r.y + t.r.h + 1; if (!inside) continue; if (t.kind === "leaf") leaf = t.id; else group = t.id; } return { leaf, group }; }; const onPointerMove = (e: PointerEvent) => { st.current.lastInput = clock(); const rect = rectRef.current ?? wrapperRef.current?.getBoundingClientRect(); if (!rect) return; const { leaf } = hitTest(e.clientX - rect.left, e.clientY - rect.top); setHover(leaf, "pointer"); }; const onClick = (e: React.MouseEvent) => { const rect = wrapperRef.current?.getBoundingClientRect(); if (!rect) return; const { leaf, group } = hitTest(e.clientX - rect.left, e.clientY - rect.top); const target = group ?? leaf; if (target) setRoot(target); }; // Arrow keys move to the nearest leaf whose centre lies in that direction. const moveFocus = (dir: "ArrowLeft" | "ArrowRight" | "ArrowUp" | "ArrowDown") => { const s = st.current; const leaves = [...s.tiles.values()].filter((t) => t.kind === "leaf" && t.targetAlpha === 1); if (!leaves.length) return; const cur = s.hover ? s.tiles.get(s.hover) : null; if (!cur) { const first = leaves.sort((a, b) => a.target.y - b.target.y || a.target.x - b.target.x)[0]; setHover(first.id, "keyboard"); return; } const cx = cur.target.x + cur.target.w / 2; const cy = cur.target.y + cur.target.h / 2; let best: Tile | null = null; let bd = Infinity; for (const t of leaves) { if (t.id === cur.id) continue; const dx = t.target.x + t.target.w / 2 - cx; const dy = t.target.y + t.target.h / 2 - cy; const along = dir === "ArrowRight" ? dx : dir === "ArrowLeft" ? -dx : dir === "ArrowDown" ? dy : -dy; const across = dir === "ArrowRight" || dir === "ArrowLeft" ? Math.abs(dy) : Math.abs(dx); if (along <= 1) continue; const d = along + across * 2; if (d < bd) { bd = d; best = t; } } if (best) setHover(best.id, "keyboard"); }; const onKeyDown = (e: KeyboardEvent) => { const s = st.current; s.lastInput = clock(); if (e.key === "ArrowLeft" || e.key === "ArrowRight" || e.key === "ArrowUp" || e.key === "ArrowDown") { e.preventDefault(); moveFocus(e.key); } else if (e.key === "Home" || e.key === "End") { // Reading order: first is the top-left leaf, last the bottom-right. const leaves = [...s.tiles.values()].filter((t) => t.kind === "leaf" && t.targetAlpha === 1); if (!leaves.length) return; e.preventDefault(); leaves.sort((a, b) => a.target.y + a.target.x - (b.target.y + b.target.x)); setHover((e.key === "Home" ? leaves[0] : leaves[leaves.length - 1]).id, "keyboard"); } else if (e.key === "Enter" || e.key === " ") { if (!s.hover) return; e.preventDefault(); const f = flat.get(s.hover); // A leaf zooms to its group; at the deepest level Enter does nothing. const target = f?.node.children?.length ? s.hover : (f?.parent ?? null); if (target && target !== rootId) setRoot(target); } else if (e.key === "Escape" || e.key === "Backspace") { const parent = flat.get(rootId)?.parent; if (!parent) return; e.preventDefault(); setRoot(parent); } }; const tableRows = useMemo(() => { const rows: (string | number)[][] = []; for (const f of flat.values()) { if (f.node.children?.length) continue; const parent = f.parent ? flat.get(f.parent)?.node.label ?? "" : ""; rows.push([f.node.label, parent, formatValue(f.value), f.change !== null ? formatChange(f.change) : ""]); } return rows; }, [flat, formatValue, formatChange]); const tableCols = useMemo(() => ["Item", "Group", "Value", "Change"], []); return (

{/* Breadcrumbs: real buttons outside the plot's key handling. */}

{path.map((f, i) => { const last = i === path.length - 1; return ( {i > 0 && ( )} ); })} {formatValue(path[path.length - 1]?.value ?? 0)}

{mode === "change" && ( )}

{ if (wrapperRef.current) rectRef.current = wrapperRef.current.getBoundingClientRect(); }} onPointerMove={onPointerMove} onPointerDown={(e) => { if (wrapperRef.current) rectRef.current = wrapperRef.current.getBoundingClientRect(); if (e.pointerType === "touch") onPointerMove(e); }} onPointerLeave={() => setHover(null, null)} onClick={onClick} onKeyDown={onKeyDown} className={cn("absolute inset-x-0 bottom-0 cursor-pointer touch-pan-y rounded-[10px]", chartFocusRing)} style={{ top: 0 }} >

{Array.from({ length: MAX_LABELS }).map((_, k) => (

{ labelPool.current[k] = el; }} aria-hidden="true" className="group/t pointer-events-none absolute left-0 top-0 flex flex-col gap-[5px] overflow-hidden opacity-0 data-[group=1]:flex-row data-[group=1]:items-baseline data-[group=1]:gap-2" >

))}

); } a1:T540,export type BjorkTone = "dark" | "light"; // Canvas, WebGL and SVG attribute colours. DOM code uses the CSS tokens with these as fallbacks. export const BJORK_PALETTE = { dark: { bg: "#050505", stage: "#111111", surface: "#121212", raised: "#161616", active: "#202020", border: "#232323", borderStrong: "#343434", text: "#ededed", textMedium: "rgba(237,237,237,0.72)", textMuted: "rgba(237,237,237,0.6)", textSoft: "rgba(237,237,237,0.5)", textFaint: "rgba(237,237,237,0.22)", hair: "rgba(237,237,237,0.12)", accent: "#ec5c13", accentInk: "#ec5c13", accentFill: "#b84a12", accentSoft: "rgba(236,92,19,0.12)", accentMuted: "rgba(236,92,19,0.24)", accentFg: "#fff2ea", success: "#4cc38a", warning: "#f2b544", error: "#ff5c4d", }, light: { bg: "#f7f5ef", stage: "#f7f5ef", surface: "#fffcf6", raised: "#f5efe3", active: "#efe7d8", border: "#eee6db", borderStrong: "#e1d7c8", text: "#171717", textMedium: "rgba(23,23,23,0.78)", textMuted: "rgba(23,23,23,0.68)", textSoft: "rgba(23,23,23,0.62)", textFaint: "rgba(23,23,23,0.22)", hair: "rgba(23,23,23,0.10)", accent: "#ec7d43", accentInk: "#b4531f", accentFill: "#ec7d43", accentSoft: "rgba(236,125,67,0.10)", accentMuted: "rgba(236,125,67,0.20)", accentFg: "#3f2112", success: "#1f8a55", warning: "#a86b00", error: "#c8361f", }, } as const; a2:T130a,"use client"; // Canvas plumbing shared by the Charts collection. One hook gives a chart a measured host, a // DPR-capped canvas that follows it, and a draw loop that pauses offscreen and idles when settled. import { useCallback, useEffect, useRef, type RefObject } from "react"; import { useVisibleLoop } from "@/components/bjork-ui/_core/loop"; import { sizeCanvas, useElementSize } from "@/components/bjork-ui/_core/canvas"; import { cubicBezier, ease } from "@/components/bjork-ui/_core/motion"; export interface ChartFrame { ctx: CanvasRenderingContext2D; w: number; h: number; dt: number; t: number; } /** * `draw` runs inside `useVisibleLoop`. Return true to keep animating, false to go idle until `wake()`. * The loop root is `rootRef` (gets `data-loop`). The canvas is sized to `hostRef`. */ export function useChartCanvas(draw: (f: ChartFrame) => boolean) { const rootRef = useRef(null); const hostRef = useRef(null); const canvasRef = useRef(null); const size = useElementSize(hostRef); const sizeRef = useRef({ w: 0, h: 0, dpr: 1 }); const drawRef = useRef(draw); useEffect(() => { drawRef.current = draw; }); const frame = useCallback((dt: number, t: number) => { const canvas = canvasRef.current; const { w, h, dpr } = sizeRef.current; if (!canvas || !w || !h) return true; const ctx = canvas.getContext("2d"); if (!ctx) return false; ctx.setTransform(dpr, 0, 0, dpr, 0, 0); ctx.clearRect(0, 0, w, h); return drawRef.current({ ctx, w, h, dt, t }); }, []); const { wake } = useVisibleLoop(rootRef as RefObject, frame); useEffect(() => { const canvas = canvasRef.current; if (!canvas || !size.width || !size.height) return; sizeRef.current = { w: size.width, h: size.height, dpr: sizeCanvas(canvas, size.width, size.height) }; wake(); }, [size.width, size.height, wake]); return { rootRef, hostRef, canvasRef, size, wake }; } // The house ease-out for entrances, usable in rAF code. export const easeOut = cubicBezier(...(ease.out as unknown as [number, number, number, number])); export const easeInOut = cubicBezier(...(ease.inOut as unknown as [number, number, number, number])); // A 45 degree hatch pattern in `color`, for counterfactual and loss regions. const hatchCache = new Map(); export function hatchPattern(ctx: CanvasRenderingContext2D, color: string, gap = 5, width = 1): CanvasPattern | null { const key = `${color}|${gap}|${width}`; if (hatchCache.has(key)) return hatchCache.get(key)!; if (typeof document === "undefined") return null; const tile = document.createElement("canvas"); const s = gap * 2; tile.width = s * 2; tile.height = s * 2; const c = tile.getContext("2d"); if (!c) return null; c.scale(2, 2); c.strokeStyle = color; c.lineWidth = width; c.beginPath(); for (let k = -s; k <= s * 2; k += gap) { c.moveTo(k, s); c.lineTo(k + s, 0); } c.stroke(); const pattern = ctx.createPattern(tile, "repeat"); pattern?.setTransform(new DOMMatrix().scale(0.5, 0.5)); hatchCache.set(key, pattern); return pattern; } // Rounded rect path with independent top and bottom radii (bars: round data end, square baseline). export function roundRectPath( ctx: CanvasRenderingContext2D, x: number, y: number, w: number, h: number, rTop: number, rBottom = 0, ) { if (w <= 0 || h <= 0) return; const rt = Math.min(rTop, w / 2, h / 2); const rb = Math.min(rBottom, w / 2, h / 2); ctx.moveTo(x + rt, y); ctx.lineTo(x + w - rt, y); if (rt) ctx.arcTo(x + w, y, x + w, y + rt, rt); ctx.lineTo(x + w, y + h - rb); if (rb) ctx.arcTo(x + w, y + h, x + w - rb, y + h, rb); ctx.lineTo(x + rb, y + h); if (rb) ctx.arcTo(x, y + h, x, y + h - rb, rb); ctx.lineTo(x, y + rt); if (rt) ctx.arcTo(x, y, x + rt, y, rt); ctx.closePath(); } export interface PlacedLabel { text: string; x: number; y: number; /** translate percentages applied after the position, e.g. -50 to centre. */ ax?: number; ay?: number; opacity?: number; } // Writes a pool of absolutely positioned label spans from the loop: text only when it changes, // position by transform only. Unused spans hide. export function writeLabels(els: (HTMLElement | null)[], cache: string[], items: PlacedLabel[]) { for (let i = 0; i < els.length; i++) { const el = els[i]; if (!el) continue; const it = items[i]; if (!it) { if (el.style.opacity !== "0") el.style.opacity = "0"; continue; } if (cache[i] !== it.text) { cache[i] = it.text; el.textContent = it.text; } el.style.opacity = String(it.opacity ?? 1); el.style.transform = `translate3d(${it.x.toFixed(2)}px, ${it.y.toFixed(2)}px, 0) translate(${it.ax ?? 0}%, ${it.ay ?? -50}%)`; } } a3:Td34,"use client"; import { useCallback, useEffect, useMemo, useRef, type RefObject } from "react"; export interface VisibleLoopOptions { enabled?: boolean; fpsCap?: number; rootMargin?: string; } /** * Runs `frame(dt, t)` on requestAnimationFrame while the element is near the viewport, * the tab is visible and `enabled` is not false. Return `false` from `frame` to go idle * until `wake()` is called. Writes `data-loop` on the element: running, idle or paused. */ export function useVisibleLoop( ref: RefObject, frame: (dt: number, t: number) => boolean | void, opts?: VisibleLoopOptions, ): { wake: () => void } { const enabled = opts?.enabled !== false; const fpsCap = opts?.fpsCap ?? 0; const rootMargin = opts?.rootMargin ?? "96px"; const frameRef = useRef(frame); useEffect(() => { frameRef.current = frame; }, [frame]); const wakeRef = useRef<() => void>(() => {}); const wake = useCallback(() => wakeRef.current(), []); useEffect(() => { const el = ref.current; if (!el || typeof window === "undefined") return; let wants = true; // false once the frame callback returns false let inView = false; let raf = 0; let last = 0; let t = 0; const minFrame = fpsCap > 0 ? 1000 / fpsCap : 0; const canRun = () => enabled && inView && document.visibilityState === "visible"; const stop = () => { if (raf) cancelAnimationFrame(raf); raf = 0; }; const update = () => { if (!enabled) { stop(); el.dataset.loop = "paused"; return; } if (!wants) { stop(); el.dataset.loop = "idle"; return; } if (!canRun()) { stop(); el.dataset.loop = "paused"; return; } el.dataset.loop = "running"; if (!raf) { last = performance.now(); raf = requestAnimationFrame(tick); } }; const tick = (now: number) => { raf = 0; if (!canRun() || !wants) { update(); return; } const elapsed = now - last; if (minFrame && elapsed < minFrame - 0.5) { raf = requestAnimationFrame(tick); return; } last = now; const dt = Math.min(0.05, Math.max(0, elapsed / 1000)); t += dt; const keep = frameRef.current(dt, t); if (keep === false) { wants = false; update(); return; } raf = requestAnimationFrame(tick); }; const observer = new IntersectionObserver( ([entry]) => { inView = entry.isIntersecting; update(); }, { rootMargin }, ); observer.observe(el); const onVisibility = () => update(); document.addEventListener("visibilitychange", onVisibility); wakeRef.current = () => { wants = true; update(); }; update(); return () => { stop(); observer.disconnect(); document.removeEventListener("visibilitychange", onVisibility); wakeRef.current = () => {}; }; }, [ref, enabled, fpsCap, rootMargin]); return useMemo(() => ({ wake }), [wake]); } // matchMedia based check. False on the server. export function isCoarsePointer(): boolean { if (typeof window === "undefined" || typeof window.matchMedia !== "function") return false; return window.matchMedia("(pointer: coarse)").matches; } a4:T5ec,"use client"; import { useEffect, useState, type RefObject } from "react"; import { isCoarsePointer } from "./loop"; // Caps DPR at 1.5 on coarse pointers and 2 otherwise. export function defaultMaxDpr(): number { return isCoarsePointer() ? 1.5 : 2; } // Sets the backing size for a CSS box and returns the DPR used. export function sizeCanvas( canvas: HTMLCanvasElement, cssW: number, cssH: number, maxDpr: number = defaultMaxDpr(), ): number { const dpr = Math.min(typeof window !== "undefined" ? window.devicePixelRatio || 1 : 1, maxDpr); canvas.width = Math.max(1, Math.round(cssW * dpr)); canvas.height = Math.max(1, Math.round(cssH * dpr)); canvas.style.width = `${cssW}px`; canvas.style.height = `${cssH}px`; return dpr; } // Rounded size of an element, kept current with a ResizeObserver. export function useElementSize(ref: RefObject): { width: number; height: number } { const [size, setSize] = useState({ width: 0, height: 0 }); useEffect(() => { const el = ref.current; if (!el || typeof ResizeObserver === "undefined") return; const observer = new ResizeObserver((entries) => { const box = entries[0]?.contentRect; if (!box) return; const width = Math.round(box.width); const height = Math.round(box.height); setSize((prev) => (prev.width === width && prev.height === height ? prev : { width, height })); }); observer.observe(el); return () => observer.disconnect(); }, [ref]); return size; } a5:T835,// Shared springs, easings and durations. Components import these instead of inventing values. export const springs = { press: { type: "spring", stiffness: 500, damping: 30, mass: 0.6 }, snappy: { type: "spring", stiffness: 400, damping: 25, mass: 1 }, standard: { type: "spring", stiffness: 300, damping: 30, mass: 0.8 }, soft: { type: "spring", stiffness: 200, damping: 25, mass: 1.2 }, settle: { type: "spring", stiffness: 380, damping: 30, mass: 0.8 }, blurIn: { type: "spring", stiffness: 400, damping: 28, mass: 0.6 }, } as const; export const ease = { out: [0.23, 1, 0.32, 1], inOut: [0.77, 0, 0.175, 1], drawer: [0.32, 0.72, 0, 1], } as const; export const easeCss = { out: "cubic-bezier(0.23,1,0.32,1)", inOut: "cubic-bezier(0.77,0,0.175,1)", drawer: "cubic-bezier(0.32,0.72,0,1)", } as const; export const durations = { press: 140, tooltip: 160, menu: 200, panel: 280 } as const; // ms // Cubic bezier easing for canvas and rAF code. Returns progress y for input x in [0, 1]. export function cubicBezier(x1: number, y1: number, x2: number, y2: number): (t: number) => number { const cx = 3 * x1; const bx = 3 * (x2 - x1) - cx; const ax = 1 - cx - bx; const cy = 3 * y1; const by = 3 * (y2 - y1) - cy; const ay = 1 - cy - by; const sampleX = (s: number) => ((ax * s + bx) * s + cx) * s; const sampleY = (s: number) => ((ay * s + by) * s + cy) * s; const sampleDX = (s: number) => (3 * ax * s + 2 * bx) * s + cx; const solveX = (x: number) => { let s = x; for (let i = 0; i < 8; i++) { const err = sampleX(s) - x; if (Math.abs(err) < 1e-6) return s; const d = sampleDX(s); if (Math.abs(d) < 1e-6) break; s -= err / d; } let lo = 0; let hi = 1; s = x; while (lo < hi) { const v = sampleX(s); if (Math.abs(v - x) < 1e-6) return s; if (x > v) lo = s; else hi = s; s = (lo + hi) / 2; if (hi - lo < 1e-7) break; } return s; }; return (t: number) => { if (t <= 0) return 0; if (t >= 1) return 1; return sampleY(solveX(t)); }; } a6:T3085,"use client"; // Shared chart chrome for the Charts collection: theme vars, the hover tooltip, legend keys and the // screen-reader table twin every chart ships with. import { forwardRef, memo, useEffect, useImperativeHandle, useLayoutEffect, useRef, useState, type CSSProperties, type ReactNode } from "react"; import { useReducedMotion } from "framer-motion"; import { cn } from "@/lib/utils"; import { BJORK_PALETTE, type BjorkTone } from "@/components/bjork-ui/_core/palette"; import { useBjorkTone } from "@/components/bjork-ui/_core/tone"; import { LiveRegion } from "@/components/bjork-ui/_core/a11y"; import { surfaceVars } from "@/components/bjork-ui/_core/surface"; export type ChartPalette = (typeof BJORK_PALETTE)[BjorkTone]; // Tokens a chart root writes so DOM overlays follow `tone` even outside a themed page. export function chartVars(pal: ChartPalette): CSSProperties { return { ...surfaceVars(pal === BJORK_PALETTE.light ? "light" : "dark"), "--bjork-accent": pal.accent, "--bjork-accent-ink": pal.accentInk, "--bjork-accent-fill": pal.accentFill, "--bjork-accent-soft": pal.accentSoft, "--bjork-accent-foreground": pal.accentFg, "--bjork-text": pal.text, "--bjork-text-medium": pal.textMedium, "--bjork-text-muted": pal.textMuted, "--bjork-text-soft": pal.textSoft, "--bjork-text-faint": pal.textFaint, "--bjork-hair": pal.hair, "--bjork-border": pal.border, "--bjork-border-strong": pal.borderStrong, "--bjork-surface": pal.surface, "--bjork-surface-hover": pal.raised, "--bjork-ring-offset": pal.bg, // The surface a chart sits on, for label halos and cut-outs. Override it on the root if needed. "--bjork-chart-bg": pal.stage, "--bjork-success": pal.success, "--bjork-warning": pal.warning, "--bjork-error": pal.error, } as CSSProperties; } // Tone, palette, reduced motion and root vars in one call. export function useChartTheme(toneProp?: BjorkTone) { const tone = useBjorkTone(toneProp); const pal = BJORK_PALETTE[tone]; const reduce = !!useReducedMotion(); return { tone, pal, reduce, vars: chartVars(pal) }; } // Focus ring shared by every focusable plot surface. export const chartFocusRing = "outline-none focus-visible:ring-2 focus-visible:ring-[color:var(--bjork-accent)] focus-visible:ring-offset-2 focus-visible:ring-offset-[color:var(--bjork-ring-offset)]"; // Mono label style: 10px Geist Mono, tabular, cap-trimmed. export const chartMono = "font-mono text-[10px] leading-none tabular-nums [text-box:trim-both_cap_alphabetic]"; // Floating chart surfaces follow the library canon (_core/surface.ts): a 1px border plus the inset light // shadow. Hover cards take the full surface shadow; small readout tags take the soft one. Colours come // from chartVars, so light and dark both follow the tone. export const chartCardEdge = "border border-[color:var(--bjork-border)] shadow-[var(--bjork-shadow-surface)]"; export const chartTagEdge = "border border-[color:var(--bjork-border)] shadow-[var(--bjork-shadow-soft)]"; export interface TooltipRow { key?: string; label: ReactNode; value: ReactNode; color?: string; dashed?: boolean; strong?: boolean; } // The hover card. Values lead, labels follow, series keyed with a short line in the series colour. // Position it with `style.transform` from the caller; it never takes pointer events. export const ChartTooltip = forwardRef< HTMLDivElement, { title?: ReactNode; rows: TooltipRow[]; visible: boolean; className?: string; style?: CSSProperties; tipKey?: string } >(function ChartTooltip({ title, rows, visible, className, style, tipKey }, ref) { return ( ); }); // Places a tooltip of size (tw, th) next to (x, y) inside a (w, h) box, flipping away from edges. export function placeTooltip( x: number, y: number, tw: number, th: number, w: number, h: number, gap = 12, ): { x: number; y: number } { let tx = x + gap; if (tx + tw > w) tx = x - gap - tw; if (tx < 0) tx = Math.max(0, Math.min(w - tw, x - tw / 2)); let ty = y - th - gap; if (ty < 0) ty = Math.min(h - th, y + gap); return { x: Math.round(tx), y: Math.round(Math.max(0, ty)) }; } export interface LegendItem { id: string; label: string; color: string; shape?: "line" | "dash" | "rect" | "dot"; muted?: boolean; } // A legend row. Keys mirror the mark: line for lines, rect for areas and bars. export function ChartLegend({ items, className, onHover, activeId, }: { items: LegendItem[]; className?: string; onHover?: (id: string | null) => void; activeId?: string | null; }) { return (

{items.map((it) => { const dim = (activeId && activeId !== it.id) || it.muted; return ( onHover(it.id) : undefined} onPointerLeave={onHover ? () => onHover(null) : undefined} className={cn( "inline-flex items-center gap-1.5 font-bjork-alpha text-[11px] font-medium leading-3 transition-opacity duration-150 ease-out", dim ? "opacity-45" : "opacity-100", "text-[color:var(--bjork-text-medium)]", )} > {it.label} ); })}

); } export function LegendKey({ color, shape = "rect" }: { color: string; shape?: LegendItem["shape"] }) { if (shape === "line") return ; if (shape === "dash") return ; if (shape === "dot") return ; return ; } // The table twin. Every value the chart shows is reachable here without hovering. // Memoised: hover state re-renders the chart, never the table. Pass memoised rows. export const ChartTable = memo(function ChartTable({ caption, columns, rows, }: { caption: string; columns: string[]; rows: (string | number)[][]; }) { return ( {columns.map((c) => ( ))} {rows.map((r, i) => ( {r.map((cell, j) => j === 0 ? ( ) : ( ), )} ))}

{caption}
{c}
{cell}	{cell}

); }); // A pool of absolutely positioned spans the draw loop fills through `writeLabels`. export function LabelPool({ count, pool, className, }: { count: number; pool: { current: (HTMLSpanElement | null)[] }; className?: string; }) { return ( <> {Array.from({ length: count }).map((_, i) => ( { pool.current[i] = el; }} aria-hidden="true" className={cn( "pointer-events-none absolute left-0 top-0 whitespace-nowrap opacity-0", className ?? "font-mono text-[10px] leading-none tabular-nums text-[color:var(--bjork-text-faint)] [text-box:trim-both_cap_alphabetic]", )} /> ))} ); } export interface TooltipContent { key: string; title?: ReactNode; rows: TooltipRow[]; } export interface TooltipHandle { /** Shows `content`, or hides with `null`. Same key is a no-op. */ set: (content: TooltipContent | null) => void; readonly el: HTMLDivElement | null; /** Measured size of the current content. */ readonly size: { w: number; h: number }; } // A tooltip that owns its state, so hovering re-renders only the tooltip, never the chart. // The chart positions it from its draw loop through `handle.el.style.transform`. export const HoverTooltip = forwardRef void; className?: string }>(function HoverTooltip( { onMeasure, className }, ref, ) { const [state, setState] = useState<{ content: TooltipContent | null; last: TooltipContent | null }>({ content: null, last: null }); const elRef = useRef(null); const size = useRef({ w: 0, h: 0 }); const onMeasureRef = useRef(onMeasure); useEffect(() => { onMeasureRef.current = onMeasure; }); useImperativeHandle( ref, () => ({ set: (content) => setState((prev) => { if ((prev.content?.key ?? null) === (content?.key ?? null)) return prev; return { content, last: content ?? prev.last }; }), get el() { return elRef.current; }, get size() { return size.current; }, }), [], ); useLayoutEffect(() => { const el = elRef.current; if (!el) return; size.current = { w: el.offsetWidth, h: el.offsetHeight }; onMeasureRef.current?.(); }, [state.last]); const shown = state.content ?? state.last; return ; }); export interface AnnouncerHandle { say: (message: string) => void; } // Polite live region with a 250ms trailing throttle, isolated from the chart's renders. export const ChartAnnouncer = forwardRef(function ChartAnnouncer({ ms = 250 }, ref) { const [message, setMessage] = useState(""); const at = useRef(0); const timer = useRef | null>(null); useEffect( () => () => { if (timer.current) clearTimeout(timer.current); }, [], ); useImperativeHandle( ref, () => ({ say: (text: string) => { const now = performance.now(); if (timer.current) clearTimeout(timer.current); if (now - at.current >= ms) { at.current = now; setMessage(text); } else { timer.current = setTimeout(() => { at.current = performance.now(); setMessage(text); }, ms); } }, }), [ms], ); return ; }); a7:Tccd,import type { CSSProperties } from "react"; import type { BjorkTone } from "./palette"; // The library surface (CANON.md §1). Values mirror app/globals.css :root and .dark. Change both together. export const BJORK_SURFACE = { light: { surface: "#fffcf6", surfaceMuted: "rgba(250, 246, 237, 0.94)", surfaceHover: "#f5efe3", surfaceActive: "#efe7d8", panel: "#f8f2e7", menu: "rgba(255, 252, 246, 0.98)", field: "rgba(255, 252, 246, 0.96)", fieldMuted: "rgba(248, 242, 231, 0.82)", fieldInset: "rgba(239, 231, 216, 0.72)", border: "#eee6db", borderMuted: "#f5ede2", borderStrong: "#e1d7c8", shadowSurface: "inset 0 7px 14px rgba(88, 72, 49, 0.045), inset 0 0.5px 0.5px rgba(255, 255, 255, 0.92), inset 1px 0 0 rgba(88, 72, 49, 0.026), inset -1px 0 0 rgba(255, 255, 255, 0.68), 0 14px 22px -9px rgba(66, 52, 33, 0.11)", shadowSoft: "inset 0 1px 0 rgba(88, 72, 49, 0.045), inset 0 0.5px 0.5px rgba(255, 255, 255, 0.86)", shadowPanel: "inset 0 1px 0 rgba(88, 72, 49, 0.04), inset 1px 0 0 rgba(88, 72, 49, 0.024), inset -1px 0 0 rgba(255, 255, 255, 0.64), 0 18px 38px -30px rgba(66, 52, 33, 0.2)", shadowMenu: "inset 0 1px 0 rgba(88, 72, 49, 0.04), inset 0 12px 24px rgba(88, 72, 49, 0.022), inset 1px 0 0 rgba(88, 72, 49, 0.024), inset -1px 0 0 rgba(255, 255, 255, 0.62), 0 22px 44px -26px rgba(66, 52, 33, 0.22)", shadowInset: "inset 0 1px 10px rgba(88, 72, 49, 0.12), inset 0 0.5px 0.5px rgba(255, 255, 255, 0.72)", }, dark: { surface: "#121212", surfaceMuted: "rgba(22, 22, 22, 0.92)", surfaceHover: "#161616", surfaceActive: "#202020", panel: "#0d0d0d", menu: "rgba(18, 18, 18, 0.98)", field: "rgba(18, 18, 18, 0.95)", fieldMuted: "rgba(18, 18, 18, 0.55)", fieldInset: "rgba(9, 9, 9, 0.75)", border: "#232323", borderMuted: "#1c1c1c", borderStrong: "#343434", shadowSurface: "inset 0 7px 14px rgba(255, 255, 255, 0.03), inset 0 0.5px 0.5px rgba(255, 255, 255, 0.06), 0 14px 20px -6px rgba(0, 0, 0, 0.45)", shadowSoft: "inset 0 1px 0 rgba(255, 255, 255, 0.045)", shadowPanel: "inset 0 1px 0 rgba(255, 255, 255, 0.035), 0 18px 36px -28px rgba(0, 0, 0, 0.9)", shadowMenu: "inset 0 1px 0 rgba(255, 255, 255, 0.055), inset 0 12px 24px rgba(255, 255, 255, 0.018), inset 0 -18px 26px rgba(0, 0, 0, 0.24), 0 22px 42px -22px rgba(0, 0, 0, 0.9)", shadowInset: "inset 0 1px 10px rgba(0, 0, 0, 0.45)", }, } as const; /** Writes the surface tokens for a pinned tone as --bjork-* custom properties. Spread first; kit-specific keys may override. */ export function surfaceVars(tone: BjorkTone): CSSProperties { const s = BJORK_SURFACE[tone]; return { "--bjork-surface": s.surface, "--bjork-surface-muted": s.surfaceMuted, "--bjork-surface-hover": s.surfaceHover, "--bjork-surface-active": s.surfaceActive, "--bjork-panel": s.panel, "--bjork-menu": s.menu, "--bjork-field": s.field, "--bjork-field-muted": s.fieldMuted, "--bjork-field-inset": s.fieldInset, "--bjork-border": s.border, "--bjork-border-muted": s.borderMuted, "--bjork-border-strong": s.borderStrong, "--bjork-shadow-surface": s.shadowSurface, "--bjork-shadow-soft": s.shadowSoft, "--bjork-shadow-panel": s.shadowPanel, "--bjork-shadow-menu": s.shadowMenu, "--bjork-shadow-inset": s.shadowInset, } as CSSProperties; } a8:T26b2,// Shared chart math for the Charts collection: nice ticks, scales, damping, colour and number formatting. // Pure functions only. Every chart imports what it needs by path. export function clamp(v: number, lo: number, hi: number): number { return v < lo ? lo : v > hi ? hi : v; } export function lerp(a: number, b: number, t: number): number { return a + (b - a) * t; } // Maps v from [d0, d1] to [r0, r1]. Degenerate domains map to the range midpoint. export function scaleLinear(d0: number, d1: number, r0: number, r1: number): (v: number) => number { const span = d1 - d0; if (!(Math.abs(span) > 1e-12)) return () => (r0 + r1) / 2; const k = (r1 - r0) / span; return (v: number) => r0 + (v - d0) * k; } // Frame-rate independent approach: moves `cur` toward `target` with time constant `tau` seconds. export function damp(cur: number, target: number, tau: number, dt: number): number { if (tau <= 0) return target; return target + (cur - target) * Math.exp(-dt / tau); } // A "nice" step (1, 2, 2.5 or 5 x 10^k) that splits `span` into roughly `count` intervals. export function niceStep(span: number, count = 5): number { if (!(span > 0) || !Number.isFinite(span)) return 1; const raw = span / Math.max(1, count); const mag = 10 ** Math.floor(Math.log10(raw)); const r = raw / mag; const m = r <= 1 ? 1 : r <= 2 ? 2 : r <= 2.5 ? 2.5 : r <= 5 ? 5 : 10; return m * mag; } // Tick values at a nice step, inclusive of the domain ends when they land on the step. export function niceTicks(lo: number, hi: number, count = 5): number[] { if (!(hi > lo)) return [lo]; const step = niceStep(hi - lo, count); const first = Math.ceil(lo / step - 1e-9); const last = Math.floor(hi / step + 1e-9); const out: number[] = []; for (let n = first; n <= last; n++) out.push(Number((n * step).toFixed(12))); return out; } // Expands [lo, hi] outward to the nearest nice step, so the outer gridlines sit on round values. export function niceDomain(lo: number, hi: number, count = 5): [number, number] { if (!(hi > lo)) { const pad = Math.max(Math.abs(hi) * 0.1, 1); return [lo - pad, hi + pad]; } const step = niceStep(hi - lo, count); return [Math.floor(lo / step + 1e-9) * step, Math.ceil(hi / step - 1e-9) * step]; } // Half-pixel snap for crisp 1px hairlines. export function crisp(v: number): number { return Math.round(v) + 0.5; } // --- Colour ------------------------------------------------------------------------------------- const rgbCache = new Map(); // Parses #rgb, #rrggbb and rgba()/rgb() strings. Returns [r, g, b, a]. export function parseColor(c: string): [number, number, number, number] { const hit = rgbCache.get(c); if (hit) return hit; let out: [number, number, number, number] = [0, 0, 0, 1]; const s = c.trim(); if (s.startsWith("#")) { let h = s.slice(1); if (h.length === 3) h = h.split("").map((ch) => ch + ch).join(""); const n = parseInt(h.slice(0, 6), 16); out = [(n >> 16) & 255, (n >> 8) & 255, n & 255, 1]; } else { const m = s.match(/rgba?$([^)]+)$/); if (m) { const p = m[1].split(",").map((x) => parseFloat(x)); out = [p[0] ?? 0, p[1] ?? 0, p[2] ?? 0, p[3] ?? 1]; } } rgbCache.set(c, out); return out; } // The colour at alpha `a`, multiplied with any alpha the colour already has. export function withAlpha(c: string, a: number): string { const [r, g, b, a0] = parseColor(c); return `rgba(${r},${g},${b},${+(a0 * a).toFixed(4)})`; } // Mixes two opaque colours in sRGB. t = 0 gives `a`. export function mixColor(a: string, b: string, t: number): string { const ca = parseColor(a); const cb = parseColor(b); const r = Math.round(lerp(ca[0], cb[0], t)); const g = Math.round(lerp(ca[1], cb[1], t)); const bl = Math.round(lerp(ca[2], cb[2], t)); return `rgb(${r},${g},${bl})`; } // --- Numbers ------------------------------------------------------------------------------------ const fmtCache = new Map(); function nf(opts: Intl.NumberFormatOptions): Intl.NumberFormat { const key = JSON.stringify(opts); let f = fmtCache.get(key); if (!f) { f = new Intl.NumberFormat("en-US", opts); fmtCache.set(key, f); } return f; } export function formatNumber(v: number, digits = 1): string { if (!Number.isFinite(v)) return "–"; return nf({ maximumFractionDigits: digits, minimumFractionDigits: 0 }).format(v); } export function formatFixed(v: number, digits = 2): string { if (!Number.isFinite(v)) return "–"; return nf({ maximumFractionDigits: digits, minimumFractionDigits: digits }).format(v); } // 1,284 / 12.9K / 4.2M. Uses a true minus sign. export function formatCompact(v: number, digits = 1): string { if (!Number.isFinite(v)) return "–"; const s = nf({ notation: "compact", maximumFractionDigits: digits }).format(Math.abs(v)); return v < 0 ? `−${s}` : s; } export function formatPercent(v: number, digits = 0): string { if (!Number.isFinite(v)) return "–"; const s = nf({ maximumFractionDigits: digits, minimumFractionDigits: digits }).format(Math.abs(v * 100)); return `${v < 0 ? "−" : ""}${s}%`; } // +1.2 / −0.8 / 0. Signed numbers use a true minus and an explicit plus. export function formatSigned(v: number, format: (n: number) => string = (n) => formatNumber(n)): string { if (!Number.isFinite(v)) return "–"; const body = format(Math.abs(v)); // A value that rounds to zero carries no sign. if (Math.abs(v) < 1e-12 || !/[1-9]/.test(body)) return body; return `${v > 0 ? "+" : "−"}${body}`; } // Gaussian kernel density at x for a sorted sample, bandwidth h. export function kde(sample: number[], x: number, h: number): number { const n = sample.length; if (!n || !(h > 0)) return 0; let s = 0; const inv = 1 / h; for (let i = 0; i < n; i++) { const u = (x - sample[i]) * inv; if (u > 4 || u < -4) continue; s += Math.exp(-0.5 * u * u); } return s / (n * h * Math.sqrt(2 * Math.PI)); } // Silverman's rule of thumb bandwidth. export function silverman(sample: number[]): number { const n = sample.length; if (n < 2) return 1; const mean = sample.reduce((a, b) => a + b, 0) / n; const sd = Math.sqrt(sample.reduce((a, b) => a + (b - mean) ** 2, 0) / (n - 1)); const sorted = [...sample].sort((a, b) => a - b); const iqr = quantile(sorted, 0.75) - quantile(sorted, 0.25); const spread = Math.min(sd, iqr / 1.34) || sd || 1; return 0.9 * spread * n ** -0.2; } // Linear-interpolated quantile of a sorted array. export function quantile(sorted: number[], q: number): number { const n = sorted.length; if (!n) return NaN; if (n === 1) return sorted[0]; const pos = clamp(q, 0, 1) * (n - 1); const lo = Math.floor(pos); const hi = Math.min(n - 1, lo + 1); return sorted[lo] + (sorted[hi] - sorted[lo]) * (pos - lo); } // Standard normal sample from a uniform source (Box-Muller). export function gaussian(rnd: () => number): number { const u = Math.max(rnd(), 1e-9); const v = rnd(); return Math.sqrt(-2 * Math.log(u)) * Math.cos(2 * Math.PI * v); } // --- Time --------------------------------------------------------------------------------------- const HOUR = 3600000; const DAY = 86400000; const timeFmt = { hour: new Intl.DateTimeFormat("en-US", { hour: "numeric", timeZone: "UTC" }), day: new Intl.DateTimeFormat("en-US", { month: "short", day: "numeric", timeZone: "UTC" }), month: new Intl.DateTimeFormat("en-US", { month: "short", timeZone: "UTC" }), monthYear: new Intl.DateTimeFormat("en-US", { month: "short", year: "2-digit", timeZone: "UTC" }), year: new Intl.DateTimeFormat("en-US", { year: "numeric", timeZone: "UTC" }), }; export interface TimeTick { t: number; label: string; } // Calendar-aligned ticks (UTC) for [t0, t1] drawn across `px` pixels, at least `minPx` apart. export function timeTicks(t0: number, t1: number, px: number, minPx = 64): TimeTick[] { const span = t1 - t0; if (!(span > 0) || !(px > 0)) return []; const maxTicks = Math.max(1, Math.floor(px / minPx)); const perTick = span / maxTicks; const out: TimeTick[] = []; const hourSteps = [1, 2, 3, 6, 12]; for (const k of hourSteps) { if (k * HOUR >= perTick) { const step = k * HOUR; for (let t = Math.ceil(t0 / step) * step; t <= t1; t += step) { const d = new Date(t); out.push({ t, label: d.getUTCHours() === 0 ? timeFmt.day.format(t) : timeFmt.hour.format(t) }); } return out; } } const daySteps = [1, 2, 3, 7, 14]; for (const k of daySteps) { if (k * DAY >= perTick) { const step = k * DAY; // Weekly steps land on Mondays. const offset = k === 7 || k === 14 ? 4 * DAY : 0; for (let t = Math.ceil((t0 - offset) / step) * step + offset; t <= t1; t += step) out.push({ t, label: timeFmt.day.format(t) }); return out; } } const monthSteps = [1, 2, 3, 6, 12, 24, 60]; for (const k of monthSteps) { if (k * 30.44 * DAY >= perTick) { const d0 = new Date(t0); let y = d0.getUTCFullYear(); let m = d0.getUTCMonth(); // First boundary at or after t0 that is a multiple of k months. m = Math.ceil(m / k) * k; for (;;) { y += Math.floor(m / 12); m %= 12; const t = Date.UTC(y, m, 1); if (t > t1) break; if (t >= t0) { const label = k >= 12 ? timeFmt.year.format(t) : m === 0 ? timeFmt.monthYear.format(t) : timeFmt.month.format(t); out.push({ t, label }); } m += k; } return out; } } return out; } export function formatDateUTC(t: number, style: "day" | "full" = "day"): string { if (style === "full") return new Date(t).toLocaleDateString("en-US", { weekday: "short", month: "short", day: "numeric", year: "numeric", timeZone: "UTC" }); return timeFmt.day.format(t); } 7c:["$","$L9f",null,{"files":[{"path":"components/bjork-ui/charts/treemap.tsx","content":"$a0","type":"registry:component","target":"@components/bjork-ui/charts/treemap.tsx"},{"path":"lib/utils.ts","content":"import { clsx, type ClassValue } from \"clsx\"\nimport { twMerge } from \"tailwind-merge\"\n\nexport function cn(...inputs: ClassValue[]) {\n return twMerge(clsx(inputs))\n}\n","type":"registry:lib","target":"@lib/utils.ts"},{"path":"components/bjork-ui/_core/palette.ts","content":"$a1","type":"registry:component","target":"@components/bjork-ui/_core/palette.ts"},{"path":"components/bjork-ui/charts/_kit/canvas.ts","content":"$a2","type":"registry:component","target":"@components/bjork-ui/charts/_kit/canvas.ts"},{"path":"components/bjork-ui/_core/loop.ts","content":"$a3","type":"registry:component","target":"@components/bjork-ui/_core/loop.ts"},{"path":"components/bjork-ui/_core/canvas.ts","content":"$a4","type":"registry:component","target":"@components/bjork-ui/_core/canvas.ts"},{"path":"components/bjork-ui/_core/motion.ts","content":"$a5","type":"registry:component","target":"@components/bjork-ui/_core/motion.ts"},{"path":"components/bjork-ui/charts/_kit/chrome.tsx","content":"$a6","type":"registry:component","target":"@components/bjork-ui/charts/_kit/chrome.tsx"},{"path":"components/bjork-ui/_core/tone.ts","content":"\"use client\";\n\nimport { useSyncExternalStore } from \"react\";\nimport { useTheme } from \"next-themes\";\nimport type { BjorkTone } from \"./palette\";\n\nconst subscribeNoop = () => () => {};\nconst getMounted = () => true;\nconst getServerMounted = () => false;\n\n/**\n * Resolves the tone for a component. 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