{
  "$schema": "https://uipkge.dev/schema/registry-item.json",
  "name": "icicle-chart",
  "title": "Icicle Chart",
  "type": "registry:ui",
  "files": [
    {
      "path": "packages/registry-svelte/components/icicle-chart/IcicleChart.svelte",
      "content": "<script lang=\"ts\" module>\n  import type { HTMLAttributes } from 'svelte/elements'\n\n  export interface IcicleNode {\n    name: string\n    value?: number\n    children?: IcicleNode[]\n  }\n\n  export interface IcicleChartProps extends HTMLAttributes<HTMLDivElement> {\n    data: IcicleNode\n    height?: number | string\n    option?: any\n    /** Accessible name announced for the chart image. Defaults to \"Chart\". */\n    ariaLabel?: string\n  }\n\n  interface FlatNode {\n    x0: number\n    x1: number\n    depth: number\n    name: string\n    value: number\n    color: number\n  }\n</script>\n\n<script lang=\"ts\">\n  // @ts-ignore: echarts is a consumer dependency (see icicle-chart.registry.ts) and is not installed in this package.\n  import { use, init } from 'echarts/core'\n  // @ts-ignore: echarts is a consumer dependency (see icicle-chart.registry.ts) and is not installed in this package.\n  import { CanvasRenderer } from 'echarts/renderers'\n  // @ts-ignore: echarts is a consumer dependency (see icicle-chart.registry.ts) and is not installed in this package.\n  import { CustomChart as EChartsCustomChart } from 'echarts/charts'\n  // @ts-ignore: echarts is a consumer dependency (see icicle-chart.registry.ts) and is not installed in this package.\n  import { GridComponent, TooltipComponent } from 'echarts/components'\n  import { cn } from '$lib/utils'\n  import {\n    mergeOptionBlock,\n    resolveChartColors,\n    resolveChartTextColor,\n    resolveChartTooltipBg,\n    resolveChartTooltipBorder,\n    resolveChartTooltipText,\n    watchTheme,\n  } from './chart-theme'\n\n  use([CanvasRenderer, EChartsCustomChart, GridComponent, TooltipComponent])\n\n  let { class: className, data, height = 340, option, ariaLabel, ...restProps }: IcicleChartProps = $props()\n\n  let themeKey = $state(0)\n  $effect(() => watchTheme(() => (themeKey += 1)))\n\n  const theme = $derived.by(() => {\n    themeKey // re-resolve CSS tokens when the theme flips\n    return {\n      colors: resolveChartColors(),\n      text: resolveChartTextColor(),\n      tooltipBg: resolveChartTooltipBg(),\n      tooltipBorder: resolveChartTooltipBorder(),\n      tooltipText: resolveChartTooltipText(),\n    }\n  })\n\n  // Partition layout: each level fills 0..100, children subdivide their\n  // parent proportionally (equal shares when values are absent). Apache\n  // ECharts has no icicle series, so this renders one custom rect per node.\n  const flat = $derived.by((): FlatNode[] => {\n    const out: FlatNode[] = []\n    const walk = (node: IcicleNode, x0: number, x1: number, depth: number, color: number) => {\n      if (!node || typeof node !== 'object') return\n      const kids = node.children ?? []\n      const value =\n        node.value ??\n        kids.reduce((s, k) => s + (k.value ?? k.children?.reduce((a, c) => a + (c.value ?? 0), 0) ?? 0), 0)\n      out.push({ x0, x1, depth, name: node.name, value, color })\n      if (!kids.length) return\n      const total = kids.reduce((s, k) => s + (k.value ?? 0), 0)\n      let x = x0\n      kids.forEach((k, i) => {\n        const w = total > 0 ? ((k.value ?? 0) / total) * (x1 - x0) : (x1 - x0) / kids.length\n        walk(k, x, x + w, depth + 1, depth === 0 ? i : color)\n        x += w\n      })\n    }\n    walk(data, 0, 100, 0, 0)\n    return out\n  })\n\n  const maxDepth = $derived(Math.max(...flat.map((n) => n.depth), 0))\n  const grand = $derived(flat[0]?.value ?? 1)\n\n  const mergedOption = $derived.by(() => {\n    const t = theme\n    const nodes = flat\n    const total = grand\n    const depth = maxDepth\n    const series = [\n      {\n        type: 'custom',\n        renderItem: (params: any, api: any) => {\n          const n: FlatNode = nodes[params.dataIndex]\n          const [px0, py0] = api.coord([n.x0, n.depth + 0.08])\n          const [px1, py1] = api.coord([n.x1, n.depth + 0.92])\n          const wide = Math.abs(px1 - px0) > 48\n          const children: any[] = [\n            {\n              type: 'rect',\n              shape: {\n                x: Math.min(px0, px1),\n                y: Math.min(py0, py1),\n                width: Math.max(1, Math.abs(px1 - px0)),\n                height: Math.abs(py1 - py0),\n                r: 3,\n              },\n              style: {\n                fill: t.colors[n.color % t.colors.length],\n                opacity: n.depth === 0 ? 0.35 : 0.85,\n              },\n            },\n          ]\n          if (wide) {\n            children.push({\n              type: 'text',\n              style: {\n                x: (px0 + px1) / 2,\n                y: (py0 + py1) / 2,\n                text: n.depth === 0 ? n.name : `${n.name} ${n.value}`,\n                fill: n.depth === 0 ? t.text : '#fff',\n                fontSize: 11,\n                fontWeight: n.depth === 0 ? 700 : 600,\n                align: 'center',\n                verticalAlign: 'middle',\n                overflow: 'truncate',\n                width: Math.abs(px1 - px0) - 12,\n              },\n            })\n          }\n          return { type: 'group', children }\n        },\n        data: nodes.map((n) => [n.x0, n.depth, n.x1]),\n      },\n    ]\n    const userOption: any = option ?? {}\n    const {\n      series: userSeries,\n      xAxis: userXAxis,\n      yAxis: userYAxis,\n      grid: userGrid,\n      tooltip: userTooltip,\n      ...userRest\n    } = userOption\n    const mergedSeries = Array.isArray(userSeries)\n      ? series.map((s, i) => ({ ...s, ...(userSeries[i] ?? {}) }))\n      : series\n    return {\n      color: t.colors,\n      grid: mergeOptionBlock({ left: 8, right: 8, top: 12, bottom: 12, containLabel: false }, userGrid),\n      tooltip: mergeOptionBlock(\n        {\n          trigger: 'item',\n          backgroundColor: t.tooltipBg,\n          borderColor: t.tooltipBorder,\n          textStyle: { color: t.tooltipText, fontSize: 12 },\n          formatter: (p: any) => {\n            const n: FlatNode | undefined = nodes[p.dataIndex]\n            return n\n              ? `${n.name}<br/>${n.value.toLocaleString()} t (${((n.value / (total || 1)) * 100).toFixed(1)}%)`\n              : ''\n          },\n        },\n        userTooltip,\n      ),\n      xAxis: mergeOptionBlock({ type: 'value', min: 0, max: 100, show: false }, userXAxis),\n      yAxis: mergeOptionBlock(\n        { type: 'value', min: -0.2, max: depth + 1.1, inverse: true, show: false },\n        userYAxis,\n      ),\n      series: mergedSeries,\n      ...userRest,\n    }\n  })\n\n  const heightStyle = $derived(/^\\d+$/.test(String(height)) ? `${height}px` : String(height))\n\n  let viewport: HTMLDivElement | null = null\n  let chart = $state<{ setOption: (option: unknown) => void } | null>(null)\n\n  $effect(() => {\n    if (!viewport) return\n    const instance = init(viewport)\n    chart = instance\n    const ro = new ResizeObserver(() => instance.resize())\n    ro.observe(viewport)\n    return () => {\n      ro.disconnect()\n      instance.dispose()\n      chart = null\n    }\n  })\n\n  $effect(() => {\n    chart?.setOption(mergedOption)\n  })\n</script>\n\n<div\n  data-uipkge\n  data-slot=\"icicle-chart\"\n  role=\"img\"\n  tabindex=\"0\"\n  aria-label={ariaLabel || 'Icicle chart'}\n  {...restProps}\n  style=\"height: {heightStyle}\"\n  class={cn('focus-visible:ring-ring w-full focus-visible:ring-2 focus-visible:outline-none', className)}\n>\n  <div bind:this={viewport} class=\"size-full\"></div>\n</div>\n",
      "type": "registry:ui",
      "target": "~/src/lib/components/ui/icicle-chart/IcicleChart.svelte"
    },
    {
      "path": "packages/registry-svelte/components/icicle-chart/chart-theme.ts",
      "content": "// Svelte port of the Vue `useChartTheme` helper. Framework-free by design:\n// components own a `themeKey` state, re-call these resolvers when it changes,\n// and wire `watchTheme` in an `$effect` (see Heatmap.svelte).\n//\n// Chart palette is driven by Tailwind v4 CSS variables (`--chart-1`..`--chart-5`,\n// `--muted-foreground`, `--border`, `--popover`, etc.) so dark/light flips\n// happen automatically when the consumer toggles their theme class. The\n// values resolve at runtime via `getComputedStyle`, so they pick up whatever\n// the consumer set in their own `tailwind.css` -- no fork required.\n\n// ECharts' canvas renderer does not accept OKLCH in every browser. Assigning\n// one of our Tailwind tokens to `fillStyle` can silently leave the sentinel\n// colour in place, turning a whole chart black. Convert OKLCH ourselves and\n// let the canvas normalize older CSS colour formats.\nlet _hexCanvas: CanvasRenderingContext2D | null = null\n\nexport function toCanvasColor(cssColor: string): string {\n  const value = cssColor.trim()\n  const match = value.match(\n    /^oklch\\(\\s*([+-]?(?:\\d+\\.?\\d*|\\.\\d+))(%?)\\s+([+-]?(?:\\d+\\.?\\d*|\\.\\d+))\\s+([+-]?(?:\\d+\\.?\\d*|\\.\\d+))(?:deg)?(?:\\s*\\/\\s*([+-]?(?:\\d+\\.?\\d*|\\.\\d+))(%?))?\\s*\\)$/i,\n  )\n\n  if (match) {\n    const lightness = Number(match[1]) / (match[2] === '%' ? 100 : 1)\n    const chroma = Number(match[3])\n    const hue = (Number(match[4]) * Math.PI) / 180\n    const alpha = match[5] == null ? 1 : Number(match[5]) / (match[6] === '%' ? 100 : 1)\n    const a = chroma * Math.cos(hue)\n    const b = chroma * Math.sin(hue)\n\n    const l = Math.pow(lightness + 0.3963377774 * a + 0.2158037573 * b, 3)\n    const m = Math.pow(lightness - 0.1055613458 * a - 0.0638541728 * b, 3)\n    const s = Math.pow(lightness - 0.0894841775 * a - 1.291485548 * b, 3)\n    const linear = [\n      4.0767416621 * l - 3.3077115913 * m + 0.2309699292 * s,\n      -1.2684380046 * l + 2.6097574011 * m - 0.3413193965 * s,\n      -0.0041960863 * l - 0.7034186147 * m + 1.707614701 * s,\n    ]\n    const rgb = linear.map((channel) => {\n      const encoded = channel <= 0.0031308 ? 12.92 * channel : 1.055 * Math.pow(channel, 1 / 2.4) - 0.055\n      return Math.round(Math.min(1, Math.max(0, encoded)) * 255)\n    })\n\n    return alpha < 1 ? `rgba(${rgb.join(', ')}, ${alpha})` : `rgb(${rgb.join(', ')})`\n  }\n\n  if (typeof document === 'undefined') return cssColor\n  if (!_hexCanvas) {\n    _hexCanvas = document.createElement('canvas').getContext('2d')\n  }\n  if (!_hexCanvas) return cssColor\n  _hexCanvas.fillStyle = '#010203'\n  _hexCanvas.fillStyle = value\n  const normalized = _hexCanvas.fillStyle as string\n  return normalized === '#010203' && value.toLowerCase() !== '#010203' ? value : normalized\n}\n\n// Convert any CSS color (hex, rgb, oklch, color()) + alpha 0..1 to a\n// canvas-safe rgba(r,g,b,a). `colorString + '40'` (8-digit hex alpha)\n// only works when `colorString` is `#rrggbb`; once tokens resolve to\n// oklch() post-hydration the gradient stops break and the canvas paint\n// throws every frame. Stay defensive and always return rgba.\nexport function toRgba(cssColor: string, alpha: number): string {\n  const normalized = toCanvasColor(cssColor)\n  if (normalized.startsWith('#') && normalized.length === 7) {\n    const r = parseInt(normalized.slice(1, 3), 16)\n    const g = parseInt(normalized.slice(3, 5), 16)\n    const b = parseInt(normalized.slice(5, 7), 16)\n    return `rgba(${r},${g},${b},${alpha})`\n  }\n  if (normalized.startsWith('rgba(')) {\n    return normalized.replace(/,\\s*[\\d.]+\\s*\\)$/, `,${alpha})`)\n  }\n  if (normalized.startsWith('rgb(')) {\n    return normalized.replace(/^rgb\\(/, 'rgba(').replace(/\\)$/, `,${alpha})`)\n  }\n  // Canvas refused to parse this color -- ship the original string and\n  // let ECharts complain (better than crashing the paint loop).\n  return cssColor\n}\n\nfunction resolveVar(name: string, fallback: string): string {\n  if (typeof window === 'undefined') return fallback\n  const v = getComputedStyle(document.documentElement).getPropertyValue(name).trim()\n  if (!v) return fallback\n  return toCanvasColor(v)\n}\n\n// SSR / pre-hydration fallback palette. Hex values picked to roughly\n// match the shadcn Neutral defaults in `tailwind.css` so the first paint\n// doesn't flicker.\nconst CHART_FALLBACK = ['#f59e0b', '#14b8a6', '#3b82f6', '#f97316', '#eab308']\n\nexport function resolveChartColors(): string[] {\n  return Array.from({ length: 5 }, (_, i) => resolveVar(`--chart-${i + 1}`, CHART_FALLBACK[i]!))\n}\n\nexport function resolveChartTextColor(): string {\n  return resolveVar('--muted-foreground', '#888888')\n}\n\nexport function resolveChartAxisColor(): string {\n  return resolveVar('--border', '#e5e5e5')\n}\n\nexport function resolveChartSplitLineColor(): string {\n  return resolveVar('--border', '#f0f0f0')\n}\n\nexport function resolveChartTooltipBg(): string {\n  return resolveVar('--popover', 'rgba(255,255,255,0.96)')\n}\n\nexport function resolveChartTooltipBorder(): string {\n  return resolveVar('--border', '#e5e5e5')\n}\n\nexport function resolveChartTooltipText(): string {\n  return resolveVar('--popover-foreground', '#333333')\n}\n\nexport function resolveChartBgColor(): string {\n  return resolveVar('--card', resolveVar('--background', '#ffffff'))\n}\n\n// The app's accent, for the one highlighted element on a chart or map — a\n// selected route, a focused bar. Category series keep using chartColors.\nexport function resolveChartAccentColor(): string {\n  return resolveVar('--primary', '#38bdf8')\n}\n\n// Out-of-bounds / failure colour for charts that encode good vs bad rather\n// than a category — control limits, error series. CSS-level marks can use\n// `var(--destructive)` directly; this exists because ECharts needs a resolved\n// colour string on the canvas.\nexport function resolveChartDangerColor(): string {\n  return resolveVar('--destructive', '#dc2626')\n}\n\n// Bump the subscriber whenever `<html>` class/style changes (the typical\n// shadcn dark-mode pivot) so consuming components re-resolve tokens and\n// downstream ECharts options re-paint. Also bumps once on the first paint so\n// post-hydration getComputedStyle reads the *resolved* CSS values. Returns a\n// cleanup function for `$effect`.\nexport function watchTheme(onChange: () => void): () => void {\n  if (typeof window === 'undefined') return () => {}\n  const raf = requestAnimationFrame(() => onChange())\n  const observer = new MutationObserver(() => onChange())\n  observer.observe(document.documentElement, {\n    attributes: true,\n    attributeFilter: ['class', 'style', 'data-theme'],\n  })\n  return () => {\n    cancelAnimationFrame(raf)\n    observer.disconnect()\n  }\n}\n\n// Two-level deep merge for ECharts option blocks (xAxis, yAxis, grid,\n// tooltip, legend, singleAxis, parallel, etc.). The top-level keys merge\n// shallowly, but one nested level (axisLabel, axisLine, splitLine, etc.)\n// merges shallowly too so a consumer passing `xAxis: { axisLabel: { fontSize: 9 } }`\n// doesn't blow away the wrapper's `color` + base font defaults on the same\n// axisLabel block. Arrays + primitives replace outright.\n//\n// This is the merge strategy the chart wrappers use to fold `props.option`\n// onto their computed base option without forcing consumers to spell out\n// every default they want to preserve.\nexport function mergeOptionBlock<T extends Record<string, any>>(base: T, user: Partial<T> | undefined): T {\n  if (!user) return base\n  const out: any = { ...base }\n  for (const k of Object.keys(user)) {\n    const bv = (base as any)[k]\n    const uv = (user as any)[k]\n    if (\n      bv != null &&\n      uv != null &&\n      typeof bv === 'object' &&\n      typeof uv === 'object' &&\n      !Array.isArray(bv) &&\n      !Array.isArray(uv)\n    ) {\n      out[k] = { ...bv, ...uv }\n    } else {\n      out[k] = uv\n    }\n  }\n  return out\n}\n\n// Default gauge stoplight: teal (safe) -> amber (warning) -> red (danger).\n// Pulled off saturated green and onto teal so the gauge ties back to the\n// dashboard palette; red is kept as the universal \"limit reached\" cue.\n// GaugeChart consumes this via its `thresholds` prop default; consumers\n// pass their own array to override. Static because gauges have semantic\n// meaning (green safe / red danger) that we deliberately don't theme-flip.\nexport const gaugeThresholds: [number, string][] = [\n  [0.6, '#14b8a6'],\n  [0.85, '#f59e0b'],\n  [1, '#dc2626'],\n]\n",
      "type": "registry:ui",
      "target": "~/src/lib/components/ui/icicle-chart/chart-theme.ts"
    },
    {
      "path": "packages/registry-svelte/components/icicle-chart/index.ts",
      "content": "export { default as IcicleChart, type IcicleChartProps, type IcicleNode } from './IcicleChart.svelte'\n",
      "type": "registry:ui",
      "target": "~/src/lib/components/ui/icicle-chart/index.ts"
    }
  ],
  "dependencies": [
    "echarts"
  ],
  "devDependencies": [],
  "registryDependencies": [],
  "description": "Icicle (partition) chart around Apache ECharts custom series — ECharts ships no icicle series, so this partitions one rect per node top-down with in-canvas labels. Theme-aware via registry tokens.",
  "categories": [
    "chart"
  ]
}