{"slug":"bump-chart","name":"Bump Chart","description":"Animated rankings with curved paths, interactive rank dots, and tooltips.","category":"charts","source_url":"https://beui.dev/r/bump-chart/raw","detail_url":"https://beui.dev/r/bump-chart","raw_url":"https://beui.dev/r/bump-chart/raw","page_url":"https://beui.dev/charts/bump-chart","markdown_url":"https://beui.dev/charts/bump-chart.md","published_at":"2026-09-20","updated_at":"2026-09-25","dependencies":["@floating-ui/dom","clsx","lucide-react","motion","react","react-dom","tailwind-merge"],"internal":["../magnetic","./base","./bump-chart/context","./bump-chart/legend","./bump-chart/model","./bump-chart/plot","./context","./magnetic","./metallic","./model","./point","./series","./stateful","./tooltip/positioner","./tooltip/use-position","./use-geometry","./use-position","@/components/charts/bump-chart","@/components/motion/button","@/components/motion/tooltip","@/components/motion/tooltip-surface","@/lib/ease","@/lib/hooks/use-dismiss","@/lib/hooks/use-hover-capable","@/lib/hooks/use-hover-gesture","@/lib/hooks/use-tap-gesture","@/lib/touch","@/lib/utils"],"files":[{"path":"components/charts/bump-chart.tsx","type":"component","content":"\"use client\";\n// beui.dev/charts/bump-chart\n\nimport { cn } from \"@/lib/utils\";\nimport { BumpChartContext, useBumpChartModel, type BumpChartProps } from \"./bump-chart/context\";\nimport { BumpChartLegend } from \"./bump-chart/legend\";\nimport { BumpChartPlot } from \"./bump-chart/plot\";\n\n/** Compose the plot and legend, or supply children for your own arrangement. */\nexport function BumpChart({ children, className, ...props }: BumpChartProps) {\n const model = useBumpChartModel(props);\n return (\n \n
\n {children === undefined ? (\n <>\n \n \n \n ) : (\n children\n )}\n
\n \n );\n}\n\nexport { BumpChartLegend } from \"./bump-chart/legend\";\nexport { BumpChartPlot } from \"./bump-chart/plot\";\nexport { useBumpChart } from \"./bump-chart/context\";\nexport type { BumpChartProps } from \"./bump-chart/context\";\nexport type BumpChartSeries = import(\"./bump-chart/model\").BumpSeries;\n"},{"path":"components/charts/bump-chart/context.tsx","type":"util","content":"\"use client\";\n\nimport { createContext, useContext, useState, type ReactNode } from \"react\";\nimport { useReducedMotion } from \"motion/react\";\nimport { useHoverCapable } from \"@/lib/hooks/use-hover-capable\";\nimport { buildBumpChart, type BumpSeries } from \"./model\";\n\nexport interface BumpChartProps {\n series: readonly BumpSeries[];\n /** Unique period labels, in chronological order. */\n periods: readonly string[];\n /** Pinned series ID. Null clears the selection. */\n active?: string | null;\n defaultActive?: string | null;\n onActiveChange?: (id: string | null) => void;\n label?: string;\n children?: ReactNode;\n className?: string;\n}\n\nexport function useBumpChartModel({\n series,\n periods,\n active,\n defaultActive = null,\n onActiveChange,\n label = \"Rankings over time\",\n}: BumpChartProps) {\n const model = buildBumpChart(series, periods.length);\n const [internal, setInternal] = useState(defaultActive);\n const [hovered, setHovered] = useState(null);\n const [focused, setFocused] = useState(null);\n const valid = (id: string | null) => id != null && model.rows.some((row) => row.id === id);\n // Clear removed identities in this render so reappearing data cannot revive them.\n if (internal !== null && !valid(internal)) setInternal(null);\n if (hovered !== null && !valid(hovered)) setHovered(null);\n if (focused !== null && !valid(focused)) setFocused(null);\n const selected = active === undefined ? internal : active;\n const pinned = valid(selected) ? selected : null;\n const highlighted = valid(hovered) ? hovered : valid(focused) ? focused : pinned;\n const select = (id: string | null) => {\n if (active === undefined) setInternal(id);\n onActiveChange?.(id);\n };\n return {\n ...model,\n periods,\n label,\n pinned,\n highlighted,\n select,\n setHovered,\n setFocused,\n reduce: useReducedMotion(),\n canHover: useHoverCapable(),\n };\n}\n\nexport const BumpChartContext = createContext | null>(null);\nexport function useBumpChart() {\n const context = useContext(BumpChartContext);\n if (!context) throw new Error(\"Bump chart parts must be rendered inside BumpChart.\");\n return context;\n}\n"},{"path":"components/charts/bump-chart/legend.tsx","type":"util","content":"\"use client\";\n\nimport { cn } from \"@/lib/utils\";\nimport { useBumpChart } from \"./context\";\n\nexport function BumpChartLegend({ className }: { className?: string }) {\n const { rows, pinned, highlighted, select, setHovered, setFocused, canHover } = useBumpChart();\n return (\n
\n {rows.map((row) => {\n const first = row.ranks[0];\n const last = row.ranks.at(-1);\n const gain = first != null && last != null ? first - last : null;\n return (\n select(pinned === row.id ? null : row.id)}\n onPointerEnter={() => {\n if (canHover) setHovered(row.id);\n }}\n onPointerLeave={() => setHovered(null)}\n onFocus={() => setFocused(row.id)}\n onBlur={() => setFocused(null)}\n onKeyDown={(event) => {\n if (event.key === \"Escape\") {\n select(null);\n setFocused(null);\n setHovered(null);\n }\n }}\n className={cn(\n \"flex min-w-0 items-center gap-2 rounded-md px-2 py-2.5 text-xs text-foreground transition-opacity duration-150 focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-ring\",\n highlighted && highlighted !== row.id && \"opacity-35\",\n pinned === row.id && \"bg-muted/60\",\n )}\n >\n \n {row.name}\n \n {last == null ? \"—\" : `#${last}`}\n \n 0 ? \"Up\" : \"Down\"} ${Math.abs(gain)} places`\n }\n >\n {gain == null || gain === 0 ? \"—\" : `${gain > 0 ? \"↑\" : \"↓\"}${Math.abs(gain)}`}\n \n \n );\n })}\n
\n );\n}\n"},{"path":"components/charts/bump-chart/model.ts","type":"util","content":"export interface BumpSeries {\n id: string;\n name: string;\n /** One rank per period, starting at 1. Null leaves a gap in the path. */\n ranks: readonly (number | null)[];\n color?: string;\n}\n\nexport const BUMP_COLORS = [\"#8b5cf6\", \"#0d9488\", \"#f59e0b\", \"#3b82f6\", \"#f43f5e\", \"#a3a33a\"];\nexport const PLOT = { width: 560, left: 32, right: 100, top: 28, bottom: 36, rowHeight: 44 };\n\nexport function buildBumpChart(series: readonly BumpSeries[], periodCount: number) {\n const seen = new Set();\n const rows = series\n .filter((row) => {\n if (seen.has(row.id)) return false;\n seen.add(row.id);\n return true;\n })\n .map((row, index) => ({\n ...row,\n color: row.color ?? BUMP_COLORS[index % BUMP_COLORS.length],\n ranks: Array.from({ length: periodCount }, (_, i) => {\n const rank = row.ranks[i];\n return rank != null && Number.isSafeInteger(rank) && rank > 0 ? rank : null;\n }),\n }));\n const ranks = [\n ...new Set(rows.flatMap((row) => row.ranks.filter((rank): rank is number => rank != null))),\n ].sort((a, b) => a - b);\n const maxRank = ranks.at(-1) ?? 1;\n // Preserve numeric rank distances, including skipped ranks, without unbounded chart height.\n const plotHeight = Math.max(1, Math.min(maxRank - 1, 8)) * PLOT.rowHeight;\n const height = PLOT.top + plotHeight + PLOT.bottom;\n const x = (index: number) =>\n periodCount <= 1\n ? (PLOT.left + PLOT.width - PLOT.right) / 2\n : PLOT.left + (index / (periodCount - 1)) * (PLOT.width - PLOT.left - PLOT.right);\n const y = (rank: number) =>\n maxRank === 1\n ? PLOT.top + plotHeight / 2\n : PLOT.top + ((rank - 1) / (maxRank - 1)) * plotHeight;\n return { rows, ranks, maxRank, height, x, y };\n}\n\n/** Missing periods break the path rather than inventing continuity. */\nexport function bumpPath(\n ranks: readonly (number | null)[],\n x: (i: number) => number,\n y: (rank: number) => number,\n) {\n let path = \"\";\n let previous: { x: number; y: number } | null = null;\n ranks.forEach((rank, index) => {\n if (rank == null) {\n previous = null;\n return;\n }\n const point = { x: x(index), y: y(rank) };\n if (previous) {\n const middle = (previous.x + point.x) / 2;\n path += ` C ${middle} ${previous.y}, ${middle} ${point.y}, ${point.x} ${point.y}`;\n } else path += ` M ${point.x} ${point.y}`;\n previous = point;\n });\n return path.trim();\n}\n"},{"path":"components/charts/bump-chart/plot.tsx","type":"util","content":"\"use client\";\n\nimport { cn } from \"@/lib/utils\";\nimport { useBumpChart } from \"./context\";\nimport { PLOT } from \"./model\";\nimport { BumpChartPoint } from \"./point\";\nimport { BumpChartSeriesPath } from \"./series\";\nimport { pointKey, useBumpGeometry } from \"./use-geometry\";\n\nexport function BumpChartPlot({ className }: { className?: string }) {\n const { rows, ranks, height, x, y, periods, label, reduce } = useBumpChart();\n const positions = useBumpGeometry(\n rows.flatMap((row) =>\n row.ranks.flatMap((rank, index) =>\n rank == null ? [] : [{ key: pointKey(row.id, periods[index]), x: x(index), y: y(rank) }],\n ),\n ),\n !!reduce,\n );\n if (!periods.length || !ranks.length)\n return (\n
\n No rankings yet\n
\n );\n // Keep labels and rank dots readable inside narrow preview containers.\n const width = Math.max(PLOT.width, periods.length * 64);\n return (\n \n
\n \n {label}\n \n Ranks run from best at the top to lowest at the bottom. Use the legend to highlight or\n pin a series. Exact values follow in a table.\n \n {ranks.map((rank) => (\n \n ))}\n {periods.map((period, index) => (\n \n {period}\n \n ))}\n {rows.map((row, index) => (\n positions.get(pointKey(row.id, period)) ?? null)}\n />\n ))}\n \n
\n {rows.map((row, seriesIndex) =>\n row.ranks.map((rank, point) =>\n rank == null ? null : (\n \n ),\n ),\n )}\n
\n
\n \n \n \n \n \n {periods.map((period) => (\n \n ))}\n \n \n \n {rows.map((row) => (\n \n \n {row.ranks.map((rank, index) => (\n \n ))}\n \n ))}\n \n
{label} — exact ranks
Series\n {period}\n
{row.name}{rank ?? \"No data\"}
\n \n );\n}\n"},{"path":"lib/utils.ts","type":"util","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"},{"path":"lib/hooks/use-hover-capable.ts","type":"util","content":"\"use client\";\n\nimport { useEffect, useState } from \"react\";\n\n/**\n * Returns true only on devices that have a true hover (mouse / trackpad).\n * Touch devices fire phantom `:hover` on tap that sticks until tap-elsewhere\n * — gate hover-only effects (scale lifts, magnetic pulls) behind this.\n */\nexport function useHoverCapable() {\n const [canHover, setCanHover] = useState(false);\n\n useEffect(() => {\n if (typeof window === \"undefined\" || !window.matchMedia) return;\n const mq = window.matchMedia(\"(hover: hover) and (pointer: fine)\");\n const update = () => setCanHover(mq.matches);\n update();\n mq.addEventListener?.(\"change\", update);\n return () => mq.removeEventListener?.(\"change\", update);\n }, []);\n\n return canHover;\n}\n"},{"path":"components/charts/bump-chart/point.tsx","type":"util","content":"\"use client\";\n\nimport { motion, useTransform } from \"motion/react\";\nimport type { ReactNode } from \"react\";\nimport { Tooltip } from \"@/components/motion/tooltip\";\nimport { EASE_OUT, SPRING_PRESS } from \"@/lib/ease\";\nimport { useBumpChart } from \"./context\";\nimport { PLOT } from \"./model\";\nimport type { BumpPosition } from \"./use-geometry\";\n\nexport function BumpChartPoint({\n seriesId,\n period,\n seriesIndex,\n position,\n}: {\n seriesId: string;\n period: string;\n seriesIndex: number;\n position: BumpPosition | undefined;\n}) {\n const { rows, periods, highlighted, pinned, select, setHovered, setFocused, canHover, reduce } =\n useBumpChart();\n const row = rows.find((item) => item.id === seriesId);\n const index = periods.indexOf(period);\n const rank = row?.ranks[index];\n if (!row || rank == null || !position) return null;\n const previous = row.ranks[index - 1];\n const change = previous == null ? null : previous - rank;\n const active = highlighted === row.id;\n const dimmed = highlighted !== null && !active;\n const changeLabel =\n change == null\n ? \"No previous rank\"\n : change === 0\n ? \"No change\"\n : `${change > 0 ? \"Up\" : \"Down\"} ${Math.abs(change)} ${Math.abs(change) === 1 ? \"place\" : \"places\"}`;\n\n return (\n \n {\n if (canHover) setHovered(row.id);\n }}\n onPointerLeave={() => setHovered(null)}\n >\n \n \n {row.name}\n {period}\n \n \n \n #{rank}\n \n {changeLabel}\n \n {previous != null && (\n \n Previously #{previous} in {periods[index - 1]}\n \n )}\n \n }\n >\n setFocused(row.id)}\n onBlur={() => setFocused(null)}\n onClick={() => select(pinned === row.id ? null : row.id)}\n onKeyDown={(event) => {\n if (event.key === \"Escape\") {\n select(null);\n setFocused(null);\n setHovered(null);\n }\n }}\n initial={reduce ? false : { transform: \"scale(0.85)\", opacity: 0 }}\n animate={{ transform: \"scale(1)\", opacity: dimmed ? 0.22 : 1 }}\n transition={{ transform: SPRING_PRESS, opacity: { duration: 0.18, ease: EASE_OUT } }}\n whileHover={canHover && !reduce ? { transform: \"scale(1.12)\" } : undefined}\n className=\"relative flex size-7 items-center justify-center rounded-full focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-ring\"\n style={{ color: row.color }}\n >\n \n \n {rank}\n \n \n \n \n \n );\n}\n\nfunction MovingPoint({ position, children }: { position: BumpPosition; children: ReactNode }) {\n const { height } = useBumpChart();\n const transform = useTransform(\n [position.x, position.y],\n ([x, y]: number[]) => `translate(${(x / PLOT.width) * 100}%, ${(y / height) * 100}%)`,\n );\n return (\n \n {children}\n \n );\n}\n"},{"path":"components/charts/bump-chart/series.tsx","type":"util","content":"\"use client\";\n\nimport { useId, useRef } from \"react\";\nimport { motion, useTransform, useMotionValueEvent } from \"motion/react\";\nimport { EASE_OUT } from \"@/lib/ease\";\nimport { useBumpChart } from \"./context\";\nimport { bumpPath, PLOT } from \"./model\";\nimport type { BumpPosition } from \"./use-geometry\";\n\ntype Row = ReturnType[\"rows\"][number];\n\nexport function BumpChartSeriesPath({\n row,\n positions,\n index,\n}: {\n row: Row;\n positions: (BumpPosition | null)[];\n index: number;\n}) {\n const { height, highlighted, setHovered, canHover, reduce } = useBumpChart();\n const clip = useId();\n const values = positions.flatMap((point) => (point ? [point.x, point.y] : []));\n const path = useTransform(values, (coordinates: number[]) => {\n let cursor = 0;\n const points = positions.map((point) =>\n point ? { x: coordinates[cursor++], y: coordinates[cursor++] } : null,\n );\n return bumpPath(\n points.map((point) => point?.y ?? null),\n (i) => points[i]?.x ?? 0,\n (value) => value,\n );\n });\n const last = positions.at(-1);\n const labelTransform = useTransform(\n values,\n () => `translate(${last?.x.get() ?? 0} ${last?.y.get() ?? 0})`,\n );\n const labelRef = useRef(null);\n useMotionValueEvent(labelTransform, \"change\", (transform) => {\n labelRef.current?.setAttribute(\"transform\", transform);\n });\n const dimmed = highlighted !== null && highlighted !== row.id;\n return (\n {\n if (canHover) setHovered(row.id);\n }}\n onPointerLeave={() => setHovered(null)}\n >\n \n \n \n \n \n \n {/* SVG geometry must reshape with the animated points; transforming a whole path cannot express new ranks. */}\n \n \n \n \n {last && (\n \n \n {row.name.length > 12 ? `${row.name.slice(0, 11)}…` : row.name}\n {row.name}\n \n \n )}\n \n );\n}\n"},{"path":"components/charts/bump-chart/use-geometry.ts","type":"util","content":"\"use client\";\n\nimport { animate, motionValue, type MotionValue } from \"motion/react\";\nimport { useLayoutEffect, useState } from \"react\";\nimport { SPRING_LAYOUT } from \"@/lib/ease\";\n\nexport type BumpPosition = { x: MotionValue; y: MotionValue };\nexport type BumpTarget = { key: string; x: number; y: number };\nexport const pointKey = (series: string, period: string) => JSON.stringify([series, period]);\n\n/** The curves, dots, and end labels all read these exact same animated coordinates. */\nexport function useBumpGeometry(targets: BumpTarget[], reduce: boolean) {\n const shape = JSON.stringify(targets.map((target) => target.key));\n const create = (previous?: Map) =>\n new Map(\n targets.map((target) => [\n target.key,\n previous?.get(target.key) ?? { x: motionValue(target.x), y: motionValue(target.y) },\n ]),\n );\n const [stored, setStored] = useState(() => ({ shape, positions: create() }));\n let positions = stored.positions;\n if (stored.shape !== shape) {\n positions = create(stored.positions);\n setStored({ shape, positions });\n }\n // Hover/focus renders do not restart a running transition. Only new geometry does.\n const snapshot = JSON.stringify(targets);\n useLayoutEffect(() => {\n const next: BumpTarget[] = JSON.parse(snapshot);\n const controls: ReturnType[] = [];\n for (const target of next) {\n const position = positions.get(target.key);\n if (!position) continue;\n for (const axis of [\"x\", \"y\"] as const) {\n if (reduce) position[axis].jump(target[axis]);\n else controls.push(animate(position[axis], target[axis], SPRING_LAYOUT));\n }\n }\n return () => {\n for (const control of controls) control.stop();\n };\n }, [snapshot, reduce, positions]);\n return positions;\n}\n"},{"path":"components/motion/tooltip.tsx","type":"util","content":"\"use client\";\n\nimport { AnimatePresence } from \"motion/react\";\nimport { TooltipPositioner } from \"./tooltip/positioner\";\nimport { useTooltipPointer } from \"./tooltip/use-position\";\nimport {\n cloneElement,\n isValidElement,\n type PointerEvent,\n type ReactElement,\n type ReactNode,\n type RefObject,\n useCallback,\n useEffect,\n useId,\n useRef,\n useState,\n} from \"react\";\nimport { createPortal } from \"react-dom\";\nimport { TooltipSurface } from \"@/components/motion/tooltip-surface\";\nimport { useDismiss } from \"@/lib/hooks/use-dismiss\";\nimport { useHoverGesture } from \"@/lib/hooks/use-hover-gesture\";\nimport { useTapGesture } from \"@/lib/hooks/use-tap-gesture\";\nimport { cn } from \"@/lib/utils\";\n\ntype Side = \"top\" | \"right\" | \"bottom\" | \"left\";\n\nexport interface TooltipProps {\n content: ReactNode;\n children?: ReactElement;\n /** Existing trigger for controlled integrations such as chart cells. */\n anchorRef?: RefObject;\n /** Point within the anchor, as fractions of its rendered width and height. */\n anchorPoint?: { x: number; y: number };\n /** Follow real pointer coordinates; keyboard focus still uses the anchor. */\n followCursor?: boolean;\n open?: boolean;\n onOpenChange?: (open: boolean) => void;\n id?: string;\n side?: Side;\n /** Delay before showing (ms). Default 120. */\n delay?: number;\n className?: string;\n /** Classes for the outer wrapper span. Use to fix baseline / fill parent. */\n wrapperClassName?: string;\n}\n\n// Once any tooltip has just closed, neighbouring tooltips open without the\n// initial delay — moving along a toolbar feels instant after the first one.\nconst WARM_WINDOW_MS = 300;\nlet lastHiddenAt = 0;\n\nexport function Tooltip({\n content,\n children,\n side = \"top\",\n delay = 120,\n className,\n wrapperClassName,\n anchorRef: externalAnchorRef,\n anchorPoint,\n followCursor = false,\n open: controlledOpen,\n onOpenChange,\n id: providedId,\n}: TooltipProps) {\n const [internalOpen, setInternalOpen] = useState(false);\n const open = controlledOpen ?? internalOpen;\n const setOpen = useCallback(\n (next: boolean) => {\n if (controlledOpen === undefined) setInternalOpen(next);\n onOpenChange?.(next);\n },\n [controlledOpen, onOpenChange],\n );\n const generatedId = useId();\n const id = providedId ?? generatedId;\n const timer = useRef | null>(null);\n const wrapperRef = useRef(null);\n const anchorRef = externalAnchorRef ?? wrapperRef;\n const hover = useHoverGesture();\n const floatingRef = useRef(null);\n const pointer = useTooltipPointer(anchorRef, followCursor);\n const focused = useRef(false);\n\n const show = useCallback(() => {\n if (timer.current) clearTimeout(timer.current);\n if (open) return;\n const warm = Date.now() - lastHiddenAt < WARM_WINDOW_MS;\n if (warm) {\n setOpen(true);\n return;\n }\n timer.current = setTimeout(() => {\n setOpen(true);\n }, delay);\n }, [delay, setOpen, open]);\n\n const hide = useCallback(() => {\n if (timer.current) {\n clearTimeout(timer.current);\n timer.current = null;\n }\n if (open) lastHiddenAt = Date.now();\n setOpen(false);\n }, [open, setOpen]);\n\n const leave = useCallback(() => {\n if (focused.current) return;\n if (timer.current) clearTimeout(timer.current);\n // Bridge the small physical gap to a stationary, readable tooltip.\n if (followCursor) hide();\n else timer.current = setTimeout(hide, 100);\n }, [followCursor, hide]);\n const insideTooltip = useCallback(\n (target: Element) => Boolean(floatingRef.current?.contains(target)),\n [],\n );\n\n // A finger never hovers, and Safari does not focus a button on tap either, so\n // the label is only reachable if the tap itself opens the tooltip. A click\n // carries no pointerType, so the pointerdown that preceded it is what says\n // whether this was a tap; keyboard activation arrives with no pointerdown at\n // all, and focus has already shown the label there.\n const tap = useTapGesture();\n\n const toggleOnTap = useCallback(() => {\n const gesture = tap.take();\n if (!gesture || gesture.pointerType === \"mouse\") return;\n if (gesture.state) {\n hide();\n return;\n }\n if (timer.current) clearTimeout(timer.current);\n setOpen(true);\n }, [hide, tap, setOpen]);\n\n // ...and closed again by the next tap that lands somewhere else. The label\n // covers nothing interactive, so that tap passes through to what it hit.\n useDismiss(open, hide, anchorRef, { ignore: insideTooltip });\n\n useEffect(\n () => () => {\n if (timer.current) clearTimeout(timer.current);\n },\n [],\n );\n\n if (!externalAnchorRef && !isValidElement(children)) return children;\n\n // The label describes the trigger, so it has to name the trigger itself.\n // Everything else the tooltip needs is read off the anchor below instead of\n // cloned on: a handler written onto the child is the child's handler as far\n // as that child can tell, and a component that owns its activation —\n // hard-wiring onClick and spreading the rest of its props over it, as\n // ThemeToggle does — then runs the tooltip's instead of its own. Composing\n // with `props.onClick` cannot save it either, because a component element's\n // props hold nothing the component does internally.\n const trigger = isValidElement(children)\n ? cloneElement(children as ReactElement>, {\n \"aria-describedby\":\n [(children.props as Record)[\"aria-describedby\"], open ? id : undefined]\n .filter(Boolean)\n .join(\" \") || undefined,\n })\n : null;\n\n return (\n <>\n {!externalAnchorRef ? (\n // biome-ignore lint/a11y/noStaticElementInteractions: This wrapper observes bubbling trigger events without replacing the control's handlers.\n {\n if (hover.enter(event)) show();\n }}\n onPointerLeave={(event: PointerEvent) => {\n if (hover.leave(event)) leave();\n }}\n onFocus={() => {\n focused.current = true;\n show();\n }}\n onBlur={() => {\n focused.current = false;\n hide();\n }}\n onPointerDown={(event: PointerEvent) => tap.start(event, open)}\n // A gesture the platform took away sends no click, and a key press\n // starts an activation that never had a pointer behind it. Either way\n // the record has to go, or the next click reads a finger that has long\n // since lifted.\n onPointerCancel={tap.drop}\n onKeyDown={(event) => {\n tap.drop();\n if (event.key === \"Escape\") hide();\n }}\n onClick={toggleOnTap}\n >\n {trigger}\n \n ) : null}\n {typeof document !== \"undefined\"\n ? createPortal(\n \n {open ? (\n \n {(positioned, isPresent) => (\n {\n if (timer.current) clearTimeout(timer.current);\n }}\n onPointerLeave={leave}\n style={{\n maxWidth: \"calc(100vw - 16px)\",\n whiteSpace: \"normal\",\n pointerEvents: isPresent && !followCursor ? \"auto\" : \"none\",\n }}\n className={cn(\"overflow-hidden\", className)}\n >\n {content}\n \n )}\n \n ) : null}\n ,\n document.body,\n )\n : null}\n \n );\n}\n"},{"path":"lib/ease.ts","type":"util","content":"// Shared motion tokens. Easing curves mirror the CSS custom properties in\n// globals.css; springs are the canonical physics used across components.\n// Strong custom variants — defaults like `ease-in`/`ease-out` feel weak.\n\nexport const EASE_OUT = [0.16, 1, 0.3, 1] as const;\nexport const EASE_IN_OUT = [0.77, 0, 0.175, 1] as const;\nexport const EASE_DRAWER = [0.32, 0.72, 0, 1] as const;\n\n/** CSS string form of EASE_OUT for inline style transitions. */\nexport const EASE_OUT_CSS = \"cubic-bezier(0.16, 1, 0.3, 1)\";\n\n/** Press feedback on buttons and other tappable surfaces. */\nexport const SPRING_PRESS = {\n type: \"spring\",\n stiffness: 500,\n damping: 30,\n mass: 0.6,\n} as const;\n\n/** Content swaps — label/icon slots trading places inside a control. */\nexport const SPRING_SWAP = {\n type: \"spring\",\n stiffness: 460,\n damping: 30,\n mass: 0.55,\n} as const;\n\n/** Overlay panel entrances — modals and sheets summoned by pointer. */\nexport const SPRING_PANEL = {\n type: \"spring\",\n stiffness: 420,\n damping: 40,\n mass: 0.5,\n} as const;\n\n/** Shared-layout glides — pills, indicators and panels morphing between positions. */\nexport const SPRING_LAYOUT = {\n type: \"spring\",\n stiffness: 360,\n damping: 32,\n mass: 0.6,\n} as const;\n\n/** Cursor-follow physics for decorative mouse tracking (magnetic, tilt, dock). */\nexport const SPRING_MOUSE = {\n stiffness: 200,\n damping: 15,\n mass: 0.3,\n} as const;\n\n/** Dragged handles and fills (sliders) — critically damped `useSpring` config,\n * so the value follows the pointer butterily and never rebounds off an end. */\nexport const SPRING_GLIDE = {\n stiffness: 700,\n damping: 50,\n mass: 0.5,\n} as const;\n"},{"path":"components/motion/tooltip/positioner.tsx","type":"util","content":"\"use client\";\n\nimport { useIsPresent } from \"motion/react\";\nimport { useCallback, useState, type ReactNode } from \"react\";\nimport { useTooltipPosition } from \"./use-position\";\n\ntype PositionProps = Parameters[0];\n\n/** Readiness lives with the mounted overlay, not a trigger ref's attach/detach cycle. */\nexport function TooltipPositioner({\n children,\n ...position\n}: Omit & {\n children: (ready: boolean, present: boolean) => ReactNode;\n}) {\n const present = useIsPresent();\n const [ready, setReady] = useState(false);\n const onPosition = useCallback(() => setReady(true), []);\n useTooltipPosition({ ...position, open: present, onPosition });\n return (\n \n {children(ready, present)}\n \n );\n}\n"},{"path":"components/motion/tooltip/use-position.ts","type":"util","content":"\"use client\";\n\nimport {\n autoUpdate,\n computePosition,\n flip,\n offset,\n shift,\n type Placement,\n type VirtualElement,\n} from \"@floating-ui/dom\";\nimport { useCallback, useLayoutEffect, useRef, type RefObject } from \"react\";\n\nexport type TooltipSide = \"top\" | \"right\" | \"bottom\" | \"left\";\nexport type TooltipPoint = { x: number; y: number };\n\n/** Position is geometry, not animation. One write per frame, never a spring chasing a pointer. */\nexport function useTooltipPosition({\n open,\n anchorRef,\n floatingRef,\n anchorPoint,\n followCursor,\n side,\n onDismiss,\n onPosition,\n pointer,\n}: {\n open: boolean;\n anchorRef: RefObject;\n floatingRef: RefObject;\n anchorPoint?: TooltipPoint;\n followCursor: boolean;\n side: TooltipSide;\n onDismiss: () => void;\n onPosition: () => void;\n pointer: ReturnType;\n}) {\n const { cursor, onMove } = pointer;\n const cursorSide = useRef(null);\n useLayoutEffect(() => {\n cursorSide.current = open ? side : null;\n }, [open, side]);\n const frame = useRef(null);\n const version = useRef(0);\n const update = useRef<() => void>(() => {});\n const schedule = useCallback(() => {\n // Invalidate older async calculations as soon as new geometry is requested.\n version.current++;\n if (frame.current !== null) return;\n frame.current = requestAnimationFrame(() => {\n frame.current = null;\n update.current();\n });\n }, []);\n useLayoutEffect(() => {\n onMove.current = schedule;\n return () => {\n onMove.current = null;\n };\n }, [onMove, schedule]);\n const pointX = anchorPoint?.x;\n const pointY = anchorPoint?.y;\n\n // Latest committed inputs are read without recreating observers for every period/content update.\n useLayoutEffect(() => {\n update.current = () => {\n const anchor = anchorRef.current;\n const floating = floatingRef.current;\n if (!open || !anchor || !floating) return;\n const revision = ++version.current;\n const currentCursor = followCursor ? cursor.current : null;\n const reference: Element | VirtualElement =\n currentCursor || pointX !== undefined || pointY !== undefined\n ? {\n contextElement: anchor,\n getBoundingClientRect: () => {\n const rect = anchor.getBoundingClientRect();\n const x = currentCursor?.x ?? rect.left + rect.width * (pointX ?? 0.5);\n const y = currentCursor?.y ?? rect.top + rect.height * (pointY ?? 0.5);\n return { x, y, left: x, right: x, top: y, bottom: y, width: 0, height: 0 };\n },\n }\n : anchor;\n void computePosition(reference, floating, {\n strategy: \"fixed\",\n placement: currentCursor ? (cursorSide.current ?? side) : side,\n middleware: [offset(currentCursor ? 12 : 8), flip({ padding: 8 }), shift({ padding: 8 })],\n }).then(({ x, y, placement }) => {\n if (version.current !== revision || !floating.isConnected) return;\n // Hold the chosen side for this hover session. Crossing a flip threshold\n // repeatedly must not bounce the surface above and below the pointer.\n if (currentCursor) cursorSide.current = placement;\n else cursorSide.current = null;\n const dpr = window.devicePixelRatio || 1;\n floating.style.transform = `translate3d(${Math.round(x * dpr) / dpr}px, ${Math.round(y * dpr) / dpr}px, 0)`;\n const origin = {\n top: \"center bottom\",\n bottom: \"center top\",\n left: \"right center\",\n right: \"left center\",\n };\n floating.style.setProperty(\n \"--tooltip-origin\",\n origin[placement.split(\"-\")[0] as TooltipSide],\n );\n floating.style.visibility = \"visible\";\n floating.dataset.placement = placement;\n onPosition();\n });\n };\n if (open) schedule();\n }, [\n open,\n anchorRef,\n floatingRef,\n followCursor,\n pointX,\n pointY,\n side,\n schedule,\n onPosition,\n cursor,\n ]);\n\n useLayoutEffect(() => {\n const anchor = anchorRef.current;\n const floating = floatingRef.current;\n if (!open || !anchor || !floating) return;\n const stop = autoUpdate(anchor, floating, schedule);\n const onScroll = () => {\n // A stationary pointer no longer describes the same chart point after scrolling.\n if (followCursor && cursor.current) onDismiss();\n };\n window.addEventListener(\"scroll\", onScroll, true);\n return () => {\n stop();\n window.removeEventListener(\"scroll\", onScroll, true);\n version.current++;\n if (frame.current !== null) cancelAnimationFrame(frame.current);\n frame.current = null;\n };\n }, [open, anchorRef, floatingRef, followCursor, onDismiss, schedule, cursor]);\n\n useLayoutEffect(\n () => () => {\n version.current++;\n if (frame.current !== null) cancelAnimationFrame(frame.current);\n },\n [],\n );\n}\n\n/** Pointer lifetime belongs to the trigger, including the opening delay. */\nexport function useTooltipPointer(\n anchorRef: RefObject,\n followCursor: boolean,\n) {\n const cursor = useRef(null);\n const onMove = useRef<(() => void) | null>(null);\n const pointerFocus = useRef(false);\n useLayoutEffect(() => {\n const anchor = anchorRef.current;\n if (!anchor || !followCursor) return;\n const point = (event: PointerEvent) => {\n if (event.type === \"pointermove\" && event.pointerType === \"touch\" && !event.buttons) return;\n cursor.current = { x: event.clientX, y: event.clientY };\n if (event.type === \"pointerdown\") pointerFocus.current = true;\n onMove.current?.();\n };\n const keyboard = () => {\n cursor.current = null;\n pointerFocus.current = false;\n onMove.current?.();\n };\n const focus = () => {\n if (!pointerFocus.current) cursor.current = null;\n pointerFocus.current = false;\n onMove.current?.();\n };\n const leave = () => {\n cursor.current = null;\n };\n anchor.addEventListener(\"pointerenter\", point as EventListener, { passive: true });\n anchor.addEventListener(\"pointermove\", point as EventListener, { passive: true });\n anchor.addEventListener(\"pointerdown\", point as EventListener, { passive: true });\n anchor.addEventListener(\"pointerleave\", leave);\n anchor.addEventListener(\"pointercancel\", leave);\n anchor.addEventListener(\"keydown\", keyboard);\n anchor.addEventListener(\"focusin\", focus);\n return () => {\n cursor.current = null;\n anchor.removeEventListener(\"pointerenter\", point as EventListener);\n anchor.removeEventListener(\"pointermove\", point as EventListener);\n anchor.removeEventListener(\"pointerdown\", point as EventListener);\n anchor.removeEventListener(\"pointerleave\", leave);\n anchor.removeEventListener(\"pointercancel\", leave);\n anchor.removeEventListener(\"keydown\", keyboard);\n anchor.removeEventListener(\"focusin\", focus);\n };\n }, [anchorRef, followCursor]);\n\n return { cursor, onMove };\n}\n"},{"path":"components/motion/tooltip-surface.tsx","type":"util","content":"\"use client\";\n\nimport { motion, useReducedMotion } from \"motion/react\";\nimport type { ComponentProps, ReactNode, Ref } from \"react\";\nimport { EASE_OUT } from \"@/lib/ease\";\nimport { cn } from \"@/lib/utils\";\n\n/** Presentation only: the unanimated parent owns measurement and positioning. */\nexport function TooltipSurface({\n children,\n side: _side = \"top\",\n className,\n ref,\n ready = true,\n style,\n ...props\n}: Omit, \"children\"> & {\n children?: ReactNode;\n /** Start the entrance only after the positioning layer has been measured. */\n ready?: boolean;\n side?: \"top\" | \"right\" | \"bottom\" | \"left\";\n ref?: Ref;\n}) {\n const reduce = useReducedMotion();\n const closed = { opacity: 0, scale: reduce ? 1 : 0.94 };\n return (\n \n {children}\n \n );\n}\n"},{"path":"lib/hooks/use-dismiss.ts","type":"util","content":"\"use client\";\n\nimport { type RefObject, useEffect } from \"react\";\n\n/**\n * What the dismissing gesture does to the control it landed on.\n *\n * `\"pass-through\"` is the platform norm (native popover light-dismiss): the\n * tap closes the overlay *and* activates whatever was under it. Use\n * `\"consume\"` where the open overlay sits over or beside controls that would\n * be costly to trigger by accident — the dismissal then swallows the\n * activation too, so the gesture only closes.\n */\nexport type DismissBehavior = \"pass-through\" | \"consume\";\n\nexport interface DismissOptions {\n /** Default `\"pass-through\"`. */\n behavior?: DismissBehavior;\n /** Dismiss on Escape as well. Default true. */\n escape?: boolean;\n /** Return true for an outside target that should *not* dismiss. Must be stable. */\n ignore?: (target: Element) => boolean;\n}\n\n/**\n * What every currently open dismiss scope counts as inside itself. A consumed\n * dismissal reads this to tell a stray gesture from one that belongs to an\n * overlay in front of it: overlays have no shared z-order to consult, but the\n * one the gesture landed in has said as much by registering it.\n */\nconst openScopes = new Set<(target: Element) => boolean>();\n\nfunction claimedByAnotherScope(\n self: (target: Element) => boolean,\n target: Element,\n) {\n for (const scope of openScopes) {\n if (scope !== self && scope(target)) return true;\n }\n return false;\n}\n\n// preventDefault on pointerdown does not suppress the click that follows, so\n// consuming a gesture means swallowing that click itself. The swallower\n// deliberately outlives the effect that installed it — the dismissal it\n// belongs to has already unmounted or re-rendered by the time the click lands.\n// It releases on that click, or on the next gesture if the pointer is dragged\n// away and no click ever arrives, so it can never eat a later one. A keydown\n// releases it too: a gesture that ends with neither a click nor a cancel would\n// otherwise leave it armed, and the click Enter synthesizes on some focused\n// control is not the one this dismissal was owed.\nfunction consumeActivation(source: Event) {\n const swallow = (event: MouseEvent) => {\n event.preventDefault();\n event.stopPropagation();\n release();\n };\n const restart = (event: Event) => {\n if (event !== source) release();\n };\n const release = () => {\n window.removeEventListener(\"click\", swallow, true);\n window.removeEventListener(\"pointerdown\", restart, true);\n window.removeEventListener(\"pointercancel\", restart, true);\n window.removeEventListener(\"keydown\", release, true);\n };\n window.addEventListener(\"click\", swallow, true);\n window.addEventListener(\"pointerdown\", restart, true);\n window.addEventListener(\"pointercancel\", restart, true);\n window.addEventListener(\"keydown\", release, true);\n}\n\n/**\n * Close an open overlay on Escape or a pointerdown outside `ref`. Pass `null`\n * for `ref` when what counts as inside isn't one element, and say so with\n * `ignore` instead.\n *\n * The pointerdown listener is capture-phase: a bubble-phase one is blinded by\n * any handler in between that stops propagation, and an overlay cannot know\n * what it is layered over. `onDismiss` and `ignore` must be stable (wrap in\n * useCallback) so the listeners aren't re-bound every render while open.\n */\nexport function useDismiss(\n open: boolean,\n onDismiss: () => void,\n ref: RefObject | null,\n {\n behavior = \"pass-through\",\n escape: dismissOnEscape = true,\n ignore,\n }: DismissOptions = {},\n) {\n useEffect(() => {\n if (!open) return;\n const inside = (target: Element) =>\n Boolean(ref?.current?.contains(target)) || Boolean(ignore?.(target));\n const onKey = (event: KeyboardEvent) => {\n if (dismissOnEscape && event.key === \"Escape\") onDismiss();\n };\n const onPointer = (event: PointerEvent) => {\n const target = event.target as Element | null;\n if (!target || inside(target)) return;\n // Outside this overlay, but inside one that is also open: the gesture is\n // that overlay's to answer, and swallowing its click from behind would\n // cost the user the control they actually aimed at.\n if (behavior === \"consume\" && !claimedByAnotherScope(inside, target)) {\n consumeActivation(event);\n }\n onDismiss();\n };\n openScopes.add(inside);\n window.addEventListener(\"keydown\", onKey);\n window.addEventListener(\"pointerdown\", onPointer, true);\n return () => {\n openScopes.delete(inside);\n window.removeEventListener(\"keydown\", onKey);\n window.removeEventListener(\"pointerdown\", onPointer, true);\n };\n }, [open, onDismiss, ref, behavior, dismissOnEscape, ignore]);\n}\n"},{"path":"lib/hooks/use-hover-gesture.ts","type":"util","content":"\"use client\";\n\nimport { useMemo, useRef } from \"react\";\nimport { isHoveringPointer } from \"@/lib/touch\";\n\ninterface BoundaryEvent {\n pointerId: number;\n pointerType: string;\n buttons: number;\n}\n\nexport interface HoverGesture {\n /** True when this enter starts a hover: the pointer arrived resting, not pressing. */\n enter: (event: BoundaryEvent) => boolean;\n /** True when this leave ends a hover that entered as one. */\n leave: (event: BoundaryEvent) => boolean;\n}\n\n/**\n * Pairs a surface's enter with its leave, per pointer.\n *\n * `isHoveringPointer` answers the question the *enter* asks — is this pointer\n * resting on the surface or pressing it — and both boundary cases go wrong if\n * the leave is asked the same question again:\n *\n * - A pen with no hover never rests. It arrives in contact, taps, and the spec\n * then requires its boundary events after `pointerup`, so the leave carries\n * `buttons: 0` and reads as a mouse gliding off. Hover teardown then undid\n * the tap — the panel the pen had just opened closed under it.\n * - A mouse pressed on the surface and dragged off leaves with `buttons: 1`.\n * Skipping teardown there strands the surface open: the release happens\n * outside, and no second leave ever comes.\n *\n * So the state a hover holds is released by the pointer that took it, whatever\n * the buttons say at the boundary, and a pointer that arrived in contact never\n * took it in the first place. Contact is the exception tracked here, not\n * hover: a leave from a pointer this surface never saw enter — mounted under\n * the cursor, say — still counts, since the alternative is state with no way\n * out.\n */\nexport function useHoverGesture(): HoverGesture {\n const contact = useRef(new Set());\n\n return useMemo(\n () => ({\n enter: (event) => {\n if (isHoveringPointer(event)) {\n contact.current.delete(event.pointerId);\n return true;\n }\n contact.current.add(event.pointerId);\n return false;\n },\n leave: (event) => {\n const arrivedInContact = contact.current.delete(event.pointerId);\n return !arrivedInContact && event.pointerType !== \"touch\";\n },\n }),\n [],\n );\n}\n"},{"path":"lib/hooks/use-tap-gesture.ts","type":"util","content":"\"use client\";\n\nimport { useMemo, useRef } from \"react\";\n\n/** What a pointerdown recorded, read back by the click that ends its gesture. */\nexport interface TapRecord {\n /** Which input started the gesture. */\n pointerType: string;\n /** What the surface was showing when it started. */\n state: S;\n}\n\nexport interface TapGesture {\n /** Record the gesture a pointerdown starts, with the state it starts in. */\n start: (event: { pointerType: string }, state: S) => void;\n /** Read the record and clear it. `null` when no pointer is behind this click. */\n take: () => TapRecord | null;\n /** Drop the record: this gesture will never spend it on a click. */\n drop: () => void;\n}\n\n/**\n * The pointer gesture behind a click, recorded where the click cannot report\n * it. A `click` carries no `pointerType` in the engines that matter, so the\n * `pointerdown` before it is the only thing that says which input activated\n * the control — and whether one did at all, since keyboard activation\n * synthesizes a click with no pointer behind it.\n *\n * State goes in with the record because a click reports that no better: a\n * browser that focuses a control on contact can open the very panel the tap\n * was meant to open, and reading \"is it open\" at click time then undoes it.\n * What the gesture started against is what it acts on.\n *\n * The record is spent by one click and dropped by everything else, because a\n * record that outlives its gesture is worse than none:\n *\n * - A scroll or an OS gesture takes the touch away — `pointercancel`, no click\n * ever — and the finger would sit in the record until some later click.\n * - That later click is often `Enter` on a keyboard, which arrives with no\n * pointerdown of its own and would inherit the abandoned finger. A keydown\n * is the start of a keyboard activation and never part of a tap, so it drops\n * the record too.\n *\n * Both ends have to be wired by the surface: `drop` on `onPointerCancel` and\n * on `onKeyDown`.\n */\nexport function useTapGesture(): TapGesture {\n const record = useRef | null>(null);\n\n return useMemo(\n () => ({\n start: (event, state) => {\n record.current = { pointerType: event.pointerType, state };\n },\n take: () => {\n const spent = record.current;\n record.current = null;\n return spent;\n },\n drop: () => {\n record.current = null;\n },\n }),\n [],\n );\n}\n"},{"path":"lib/touch.ts","type":"util","content":"// Shared touch primitives. iOS and iPadOS run their own gestures on top of the\n// page — the long-press selection callout and the selection it drags in with\n// it — and they win: once the platform claims a touch it cancels ours\n// mid-gesture, so a press-and-hold or a drag simply dies. Surfaces that own\n// their gesture have to opt out.\n//\n// What the two classes below cover, precisely:\n// - `-webkit-touch-callout: none` stops iOS's long-press callout. WebKit-only:\n// it is not a property other engines have, so it is inert everywhere else.\n// - `user-select: none` stops the long-press selection on every engine,\n// Android included, and stops a drag from painting a selection under the\n// cursor. It is inherited, so it reaches every descendant — which is why the\n// two classes differ only in whether they apply it unconditionally.\n// What neither covers:\n// - Chrome for Android's long-press menu on a link or an image. No CSS\n// suppresses it; a gesture surface that wraps one needs its own\n// `onContextMenu` with `preventDefault()`.\n// - The native drag of an `` or `` descendant. `-webkit-user-drag` is\n// not inherited and plain divs and buttons are not drag sources, so setting\n// it on the surface does nothing — the child itself needs `draggable={false}`.\n\n/**\n * Classes for a surface that *is* the control: a thumb, a drum, a stage, a\n * handle, a hold button. Selection is suppressed on every input, because a\n * drag that highlights the control's own label is wrong on a mouse too.\n * Compose with `touch-none` when the surface also owns the scroll axis — leave\n * it off when the page must still scroll from there.\n */\nexport const TOUCH_GESTURE_CLASS = \"select-none [-webkit-touch-callout:none]\";\n\n/**\n * The same opt-out for a gesture surface that wraps content the consumer owns:\n * a scroller, a context-menu trigger, a sheet header, a list row. Selection is\n * suppressed only where the platform runs its own press gestures — a coarse\n * pointer — so a mouse user can still select and copy that content. If the\n * gesture itself would paint a selection under the cursor, add `select-none`\n * for the duration of the gesture rather than reaching for\n * `TOUCH_GESTURE_CLASS`.\n *\n * `pointer: coarse` describes the *primary* pointer and nothing else, so a\n * hybrid machine reads it wrong in both directions: a tablet with a mouse\n * plugged in keeps touch as primary and loses mouse selection, and a laptop\n * with a touchscreen keeps the mouse as primary and leaves selection live\n * under a finger. No media query can answer per interaction — the query is\n * about the device, and the question is about the gesture in progress. The\n * default stays here because it is right on the machines that are one thing or\n * the other, and losing a selection is a nuisance; where the miss costs a\n * *gesture* instead, the surface pairs it with `holdSelection` on the press.\n */\nexport const TOUCH_GESTURE_CONTENT_CLASS =\n \"[-webkit-touch-callout:none] pointer-coarse:select-none\";\n\n/**\n * Suppress selection on `element` for as long as a gesture is running on it,\n * whatever the primary pointer of the machine happens to be. Returns the\n * release. Inline, so it wins over the class above and is gone again the\n * moment the gesture ends.\n *\n * For the press gestures a native selection would otherwise steal — a\n * long-press that opens a menu. Elsewhere prefer the classes: a surface that\n * takes selection away for the whole session is a surface whose text nobody\n * can copy.\n */\nexport function holdSelection(element: HTMLElement) {\n element.style.setProperty(\"user-select\", \"none\");\n element.style.setProperty(\"-webkit-user-select\", \"none\");\n return () => {\n element.style.removeProperty(\"user-select\");\n element.style.removeProperty(\"-webkit-user-select\");\n };\n}\n\n/**\n * Pointer capture, best effort. WebKit throws `NotFoundError` when the pointer\n * is already gone by the time the handler runs — routine on iOS, where the\n * system can claim the touch first — and an uncaught throw takes the rest of\n * the handler, the gesture included, down with it. Touch pointers carry\n * implicit capture anyway, so losing it is never fatal.\n */\nexport function capturePointer(element: Element, pointerId: number) {\n try {\n element.setPointerCapture(pointerId);\n } catch {\n // Pointer is no longer active — implicit capture still applies on touch.\n }\n}\n\n/** Release a capture taken with `capturePointer`, ignoring a stale pointer. */\nexport function releasePointer(element: Element, pointerId: number) {\n try {\n if (element.hasPointerCapture(pointerId)) {\n element.releasePointerCapture(pointerId);\n }\n } catch {\n // Capture was already dropped by the browser.\n }\n}\n\n/**\n * Whether this event came from a pointer that is *hovering*: not a touch, and\n * not currently pressed. Which input the user is holding right now is not\n * something a device capability can answer — a touchscreen laptop hovers and\n * taps, and iPadOS reports a fine hovering pointer for a finger — so both\n * paths stay live and each handler branches on the event it was given.\n *\n * A pen resting on the glass is making contact, not hovering: `buttons` is the\n * tell, and it sends a pen tap down the same route a finger takes.\n *\n * This answers what an *enter* asks. A leave is the other half of a pair and\n * has to be read against the enter that started it — `useHoverGesture` in\n * `lib/hooks/use-hover-gesture` does that, and hover surfaces should use it\n * rather than asking this question twice.\n */\nexport const isHoveringPointer = (event: {\n pointerType: string;\n buttons: number;\n}) => event.pointerType !== \"touch\" && event.buttons === 0;\n"},{"path":"components/previews/charts/bump-chart.preview.tsx","type":"preview","content":"\"use client\";\n\nimport { useState } from \"react\";\nimport { Shuffle } from \"lucide-react\";\nimport { Button } from \"@/components/motion/button\";\nimport { BumpChart, BumpChartLegend, BumpChartPlot } from \"@/components/charts/bump-chart\";\n\nconst periods = [\"Apr\", \"May\", \"Jun\", \"Jul\", \"Aug\", \"Sep\"];\n// Illustrative product rankings; replace these with your own period-by-period ranks.\nconst initialSeries = [\n { id: \"studio\", name: \"Studio\", ranks: [4, 3, 2, 3, 2, 1], color: \"#8b5cf6\" },\n { id: \"canvas\", name: \"Canvas\", ranks: [1, 1, 3, 2, 1, 2], color: \"#0d9488\" },\n { id: \"layers\", name: \"Layers\", ranks: [3, 2, 1, 1, 3, 3], color: \"#f59e0b\" },\n { id: \"orbit\", name: \"Orbit\", ranks: [2, 4, 5, 4, 5, 4], color: \"#3b82f6\" },\n { id: \"frame\", name: \"Frame\", ranks: [5, 5, 4, 5, 4, 5], color: \"#f43f5e\" },\n];\n\nexport function BumpChartPreview() {\n const [series, setSeries] = useState(initialSeries);\n const shuffle = () => {\n // Each period is a permutation: exactly one product at each rank.\n const columns = periods.map(() => {\n const ranks = initialSeries.map((_, index) => index + 1);\n for (let i = ranks.length - 1; i > 0; i--) {\n const j = Math.floor(Math.random() * (i + 1));\n [ranks[i], ranks[j]] = [ranks[j], ranks[i]];\n }\n return ranks;\n });\n setSeries((previous) =>\n previous.map((row, index) => ({ ...row, ranks: columns.map((ranks) => ranks[index]) })),\n );\n };\n return (\n
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\n

The leaderboard

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\n Five products. Six months. Every move.\n

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\n \n
\n \n \n \n \n

\n Inspect a dot for details · Select to pin a product\n

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\n );\n}\n"},{"path":"components/motion/button/index.tsx","type":"util","content":"export type {\n ButtonLinkProps,\n ButtonProps,\n ButtonSize,\n ButtonVariant,\n} from \"./base\";\nexport { Button, ButtonLink } from \"./base\";\nexport type { MagneticButtonProps } from \"./magnetic\";\nexport { MagneticButton } from \"./magnetic\";\nexport type { MetallicButtonProps } from \"./metallic\";\nexport { MetallicButton } from \"./metallic\";\nexport type { ButtonState, StatefulButtonProps } from \"./stateful\";\nexport { StatefulButton } from \"./stateful\";\n"},{"path":"components/motion/button/base.tsx","type":"util","content":"\"use client\";\n\nimport {\n AnimatePresence,\n type HTMLMotionProps,\n motion,\n useReducedMotion,\n} from \"motion/react\";\nimport {\n forwardRef,\n type PointerEvent,\n type ReactNode,\n useCallback,\n useRef,\n useState,\n} from \"react\";\nimport { EASE_OUT, SPRING_PRESS } from \"@/lib/ease\";\nimport { useHoverCapable } from \"@/lib/hooks/use-hover-capable\";\nimport { cn } from \"@/lib/utils\";\n\nexport type ButtonVariant = \"primary\" | \"secondary\" | \"ghost\" | \"outline\";\nexport type ButtonSize = \"sm\" | \"md\" | \"lg\" | \"icon\";\n\nexport interface ButtonProps extends Omit<\n HTMLMotionProps<\"button\">,\n \"children\"\n> {\n variant?: ButtonVariant;\n size?: ButtonSize;\n pressScale?: number;\n /** Spawn a Material-style ripple from the press point. Off by default. */\n ripple?: boolean;\n children?: ReactNode;\n}\n\nexport interface ButtonLinkProps extends Omit<\n HTMLMotionProps<\"a\">,\n \"children\"\n> {\n variant?: ButtonVariant;\n size?: ButtonSize;\n pressScale?: number;\n children?: ReactNode;\n}\n\ntype Ripple = { id: number; x: number; y: number; size: number };\n\nconst VARIANT_CLASS: Record = {\n primary: \"bg-primary text-primary-foreground hover:bg-primary/90\",\n secondary: \"border border-border bg-card text-foreground hover:border-border\",\n ghost: \"text-muted-foreground hover:text-foreground hover:bg-muted/60\",\n outline:\n \"border border-border bg-transparent text-foreground hover:bg-muted/60\",\n};\n\nconst SIZE_CLASS: Record = {\n sm: \"h-8 px-3 text-xs gap-1.5 rounded-full\",\n md: \"h-10 px-5 text-sm gap-2 rounded-full\",\n lg: \"h-12 px-6 text-base gap-2 rounded-full\",\n icon: \"h-8 w-8 rounded-lg\",\n};\n\nexport const Button = forwardRef(\n function Button(\n {\n variant = \"primary\",\n size = \"md\",\n pressScale = 0.93,\n ripple = false,\n className,\n children,\n onPointerDown,\n ...rest\n },\n ref,\n ) {\n const reduce = useReducedMotion();\n const canHover = useHoverCapable();\n const [ripples, setRipples] = useState([]);\n const nextId = useRef(0);\n\n const handlePointerDown = useCallback(\n (event: PointerEvent) => {\n if (ripple && !reduce) {\n const rect = event.currentTarget.getBoundingClientRect();\n const size = Math.max(rect.width, rect.height) * 2;\n const id = nextId.current++;\n setRipples((prev) => [\n ...prev,\n {\n id,\n x: event.clientX - rect.left,\n y: event.clientY - rect.top,\n size,\n },\n ]);\n }\n onPointerDown?.(event);\n },\n [ripple, reduce, onPointerDown],\n );\n\n return (\n \n {ripple && !reduce ? (\n \n \n {ripples.map((r) => (\n \n setRipples((prev) => prev.filter((x) => x.id !== r.id))\n }\n />\n ))}\n \n \n ) : null}\n {children}\n \n );\n },\n);\n\nexport const ButtonLink = forwardRef(\n function ButtonLink(\n {\n variant = \"primary\",\n size = \"md\",\n pressScale = 0.93,\n className,\n children,\n ...rest\n },\n ref,\n ) {\n const reduce = useReducedMotion();\n const canHover = useHoverCapable();\n\n return (\n \n {children}\n \n );\n },\n);\n"},{"path":"components/motion/button/magnetic.tsx","type":"util","content":"\"use client\";\n\nimport { forwardRef } from \"react\";\nimport { Magnetic } from \"../magnetic\";\nimport { Button, type ButtonProps } from \"./base\";\n\nexport interface MagneticButtonProps extends ButtonProps {\n /** Magnetic pull strength. Default 0.25. */\n strength?: number;\n /** Class applied to the magnetic wrapper. */\n magneticClassName?: string;\n}\n\nexport const MagneticButton = forwardRef(function MagneticButton(\n { strength = 0.25, magneticClassName, children, ...rest },\n ref,\n) {\n return (\n \n \n \n );\n});\n"},{"path":"components/motion/button/metallic.tsx","type":"util","content":"\"use client\";\n\nimport { motion, useReducedMotion } from \"motion/react\";\nimport { forwardRef, useState } from \"react\";\nimport { EASE_IN_OUT } from \"@/lib/ease\";\nimport { cn } from \"@/lib/utils\";\nimport { Button, type ButtonProps } from \"./base\";\n\nexport interface MetallicButtonProps extends Omit<\n ButtonProps,\n \"ripple\" | \"variant\"\n> {\n /** Stops the traveling reflection while preserving the chrome rim. */\n paused?: boolean;\n}\n\n// The rim and highlight drift separately so the material stays quiet and reflective.\nconst SILVER_DRIFT = {\n duration: 8,\n ease: EASE_IN_OUT,\n repeat: Infinity,\n};\n\nconst CHROME_SHIMMER = {\n duration: 2.4,\n ease: EASE_IN_OUT,\n};\n\nexport const MetallicButton = forwardRef<\n HTMLButtonElement,\n MetallicButtonProps\n>(function MetallicButton(\n {\n size = \"md\",\n paused = false,\n className,\n children,\n onHoverStart,\n onHoverEnd,\n ...rest\n },\n ref,\n) {\n const reduce = useReducedMotion();\n const still = paused || Boolean(reduce);\n const [hovered, setHovered] = useState(false);\n\n return (\n {\n setHovered(true);\n onHoverStart?.(event, info);\n }}\n onHoverEnd={(event, info) => {\n setHovered(false);\n onHoverEnd?.(event, info);\n }}\n className={cn(\n \"group relative isolate overflow-hidden border-0 bg-transparent text-foreground\",\n \"hover:bg-transparent hover:text-foreground\",\n \"focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2\",\n \"shadow-[0_8px_22px_rgba(0,0,0,0.16)]\",\n size === \"icon\" && \"rounded-full\",\n className,\n )}\n {...rest}\n >\n \n\n \n\n \n\n \n\n \n {children}\n \n \n );\n});\n"},{"path":"components/motion/button/stateful.tsx","type":"util","content":"\"use client\";\n\nimport { Check, Loader2, X } from \"lucide-react\";\nimport {\n AnimatePresence,\n motion,\n useReducedMotion,\n type Variants,\n} from \"motion/react\";\nimport {\n forwardRef,\n type ReactNode,\n useLayoutEffect,\n useRef,\n useState,\n} from \"react\";\nimport { EASE_OUT, SPRING_SWAP } from \"@/lib/ease\";\nimport { Button, type ButtonProps } from \"./base\";\n\nexport type ButtonState = \"idle\" | \"loading\" | \"success\" | \"error\";\n\nexport interface StatefulButtonProps extends Omit {\n state?: ButtonState;\n children: ReactNode;\n loadingText?: ReactNode;\n successText?: ReactNode;\n errorText?: ReactNode;\n icon?: ReactNode;\n}\n\nconst CASCADE_STAGGER = 0.025;\nconst ROLL_BLUR = \"blur(6px)\";\n\nconst CASCADE_LETTER_VARIANTS: Variants = {\n initial: { opacity: 0, y: \"105%\", filter: ROLL_BLUR },\n animate: (delay: number = 0) => ({\n opacity: 1,\n y: \"0%\",\n filter: \"blur(0px)\",\n transition: { ...SPRING_SWAP, delay },\n }),\n exit: (delay: number = 0) => ({\n opacity: 0,\n y: \"-105%\",\n filter: ROLL_BLUR,\n transition: { duration: 0.16, ease: EASE_OUT, delay: delay * 0.5 },\n }),\n};\n\nconst ICON_VARIANTS: Variants = {\n // Width collapses too, so the icon adds/removes its own space smoothly\n // instead of popping the row width in a single frame.\n initial: { opacity: 0, width: 0, scale: 0.7, filter: ROLL_BLUR },\n animate: {\n opacity: 1,\n width: \"1.5rem\",\n scale: 1,\n filter: \"blur(0px)\",\n transition: SPRING_SWAP,\n },\n exit: {\n opacity: 0,\n width: 0,\n scale: 0.7,\n filter: ROLL_BLUR,\n transition: { duration: 0.16, ease: EASE_OUT },\n },\n};\n\nfunction IconSlot({ keyId, children }: { keyId: string; children: ReactNode }) {\n const reduce = useReducedMotion();\n return (\n \n {children}\n \n );\n}\n\nfunction TextSlot({\n value,\n children,\n}: {\n value: string;\n children: ReactNode;\n}) {\n const reduce = useReducedMotion();\n const measureRef = useRef(null);\n const [width, setWidth] = useState();\n const label = typeof children === \"string\" ? children : null;\n const cascade = label !== null && !reduce;\n\n // Measure strings with the same per-letter layout as the cascade. Measuring\n // the whole string preserves kerning, which can make it narrower than the\n // inline-block letters and clip the final glyph during the width animation.\n useLayoutEffect(() => {\n const nextWidth = measureRef.current?.offsetWidth;\n if (!nextWidth) return;\n setWidth((current) => (current === nextWidth ? current : nextWidth));\n });\n\n return (\n \n \n {cascade\n ? label.split(\"\").map((char, index) => (\n \n {char}\n \n ))\n : children}\n \n\n {cascade ? (\n <>\n {label}\n \n \n {label.split(\"\").map((char, index) => (\n \n {char}\n \n ))}\n \n \n \n ) : (\n \n \n {children}\n \n \n )}\n \n );\n}\n\nexport const StatefulButton = forwardRef(function StatefulButton(\n {\n state = \"idle\",\n children,\n loadingText = \"Loading\",\n successText = \"Done\",\n errorText = \"Try again\",\n icon,\n disabled,\n ...rest\n },\n ref,\n) {\n const isBusy = state === \"loading\";\n const stateText =\n state === \"loading\"\n ? loadingText\n : state === \"success\"\n ? successText\n : state === \"error\"\n ? errorText\n : children;\n const textKey =\n typeof stateText === \"string\" ? `${state}-${stateText}` : state;\n\n return (\n \n );\n});\n"},{"path":"components/motion/magnetic.tsx","type":"util","content":"\"use client\";\n\nimport { motion, useMotionValue, useReducedMotion, useSpring } from \"motion/react\";\nimport { useRef, type ReactNode } from \"react\";\nimport { SPRING_MOUSE } from \"@/lib/ease\";\nimport { useHoverCapable } from \"@/lib/hooks/use-hover-capable\";\nimport { cn } from \"@/lib/utils\";\n\nexport interface MagneticProps {\n children: ReactNode;\n strength?: number;\n className?: string;\n}\n\nexport function Magnetic({ children, strength = 0.35, className }: MagneticProps) {\n const ref = useRef(null);\n const reduce = useReducedMotion();\n const canHover = useHoverCapable();\n // Decorative cursor-follow: skip on touch (phantom hover) and reduced motion.\n const enabled = !reduce && canHover;\n const x = useMotionValue(0);\n const y = useMotionValue(0);\n const sx = useSpring(x, SPRING_MOUSE);\n const sy = useSpring(y, SPRING_MOUSE);\n\n const onMove = (e: React.MouseEvent) => {\n const el = ref.current;\n if (!el || !enabled) return;\n const rect = el.getBoundingClientRect();\n x.set((e.clientX - rect.left - rect.width / 2) * strength);\n y.set((e.clientY - rect.top - rect.height / 2) * strength);\n };\n\n const onLeave = () => {\n x.set(0);\n y.set(0);\n };\n\n return (\n \n {children}\n \n );\n}\n"}]}