Chart
Beautiful charts. Built using Recharts. Copy and paste into your apps.
Updated: The chart component now uses Recharts v3. If you're upgrading existing chart code, see Updating to Recharts v3.
chart-demo
KRDS 미리보기는 준비 중입니다. 코드 탭에서 설치되는 소스를 확인하세요.
Introducing Charts. A collection of chart components that you can copy and paste into your apps.
Charts are designed to look great out of the box. They work well with the other components and are fully customizable to fit your project.
Component
We use Recharts under the hood.
We designed the chart component with composition in mind. You build your charts using Recharts components and only bring in custom components, such as ChartTooltip, when and where you need it.
import { Bar, BarChart } from "recharts"
import { ChartContainer, ChartTooltipContent } from "@/components/ui/chart"
export function MyChart() {
return (
<ChartContainer>
<BarChart data={data}>
<Bar dataKey="value" />
<ChartTooltip content={<ChartTooltipContent />} />
</BarChart>
</ChartContainer>
)
}We do not wrap Recharts. This means you're not locked into an abstraction. When a new Recharts version is released, you can follow the official upgrade path to upgrade your charts.
The components are yours.
Updating to Recharts v3
If you're updating older chart code to Recharts v3:
- Use
var(--chart-1)instead ofhsl(var(--chart-1))when you reference chart tokens from your CSS variables. - Use
ChartTooltip.defaultIndexfor initial tooltip state only. Keep persistent active shapes in your own chart state. - Remove
layoutfrom<Bar>when the parent<BarChart>already defines it. - Keep a height,
min-h-*, oraspect-*onChartContainersoResponsiveContainercan measure on first render.
Installation
pnpm dlx shadcn@latest add https://krdscn.gwlee.kr/r/chart.jsonYour First Chart
Let's build your first chart. We'll build a bar chart, add a grid, axis, tooltip and legend.
The following data represents the number of desktop and mobile users for each month.
Note: Your data can be in any shape. You are not limited to the shape of the data below. Use the dataKey prop to map your data to the chart.
const chartData = [
{ month: "January", desktop: 186, mobile: 80 },
{ month: "February", desktop: 305, mobile: 200 },
{ month: "March", desktop: 237, mobile: 120 },
{ month: "April", desktop: 73, mobile: 190 },
{ month: "May", desktop: 209, mobile: 130 },
{ month: "June", desktop: 214, mobile: 140 },
]The chart config holds configuration for the chart. This is where you place human-readable strings, such as labels, icons and color tokens for theming.
import { type ChartConfig } from "@/components/ui/chart"
const chartConfig = {
desktop: {
label: "Desktop",
color: "#2563eb",
},
mobile: {
label: "Mobile",
color: "#60a5fa",
},
} satisfies ChartConfigYou can now build your chart using Recharts components.
Important: Remember to set a min-h-[VALUE] on the ChartContainer component. This is required for the chart to be responsive.
chart-example
KRDS 미리보기는 준비 중입니다. 코드 탭에서 설치되는 소스를 확인하세요.
"use client"
import * as React from "react"
import * as RechartsPrimitive from "recharts"
import type { TooltipValueType } from "recharts"
import { cn } from "@/lib/utils"
// Format: { THEME_NAME: CSS_SELECTOR }
const THEMES = { light: "", dark: ".dark" } as const
const INITIAL_DIMENSION = { width: 320, height: 200 } as const
type TooltipNameType = number | string
export type ChartConfig = Record<
string,
{
label?: React.ReactNode
icon?: React.ComponentType
} & (
| { color?: string; theme?: never }
| { color?: never; theme: Record<keyof typeof THEMES, string> }
)
>
type ChartContextProps = {
config: ChartConfig
}
const ChartContext = React.createContext<ChartContextProps | null>(null)
function useChart() {
const context = React.useContext(ChartContext)
if (!context) {
throw new Error("useChart must be used within a <ChartContainer />")
}
return context
}
function ChartContainer({
id,
className,
children,
config,
initialDimension = INITIAL_DIMENSION,
...props
}: React.ComponentProps<"div"> & {
config: ChartConfig
children: React.ComponentProps<
typeof RechartsPrimitive.ResponsiveContainer
>["children"]
initialDimension?: {
width: number
height: number
}
}) {
const uniqueId = React.useId()
const chartId = `chart-${id ?? uniqueId.replace(/:/g, "")}`
return (
<ChartContext.Provider value={{ config }}>
<div
data-slot="chart"
data-chart={chartId}
className={cn(
"flex aspect-video justify-center text-xs [&_.recharts-cartesian-axis-tick_text]:fill-muted-foreground [&_.recharts-cartesian-grid_line[stroke='#ccc']]:stroke-border/50 [&_.recharts-curve.recharts-tooltip-cursor]:stroke-border [&_.recharts-dot[stroke='#fff']]:stroke-transparent [&_.recharts-layer]:outline-hidden [&_.recharts-polar-grid_[stroke='#ccc']]:stroke-border [&_.recharts-radial-bar-background-sector]:fill-muted [&_.recharts-rectangle.recharts-tooltip-cursor]:fill-muted [&_.recharts-reference-line_[stroke='#ccc']]:stroke-border [&_.recharts-sector]:outline-hidden [&_.recharts-sector[stroke='#fff']]:stroke-transparent [&_.recharts-surface]:outline-hidden",
className
)}
{...props}
>
<ChartStyle id={chartId} config={config} />
<RechartsPrimitive.ResponsiveContainer
initialDimension={initialDimension}
>
{children}
</RechartsPrimitive.ResponsiveContainer>
</div>
</ChartContext.Provider>
)
}
const ChartStyle = ({ id, config }: { id: string; config: ChartConfig }) => {
const colorConfig = Object.entries(config).filter(
([, config]) => config.theme ?? config.color
)
if (!colorConfig.length) {
return null
}
return (
<style
dangerouslySetInnerHTML={{
__html: Object.entries(THEMES)
.map(
([theme, prefix]) => `
${prefix} [data-chart=${id}] {
${colorConfig
.map(([key, itemConfig]) => {
const color =
itemConfig.theme?.[theme as keyof typeof itemConfig.theme] ??
itemConfig.color
return color ? ` --color-${key}: ${color};` : null
})
.join("\n")}
}
`
)
.join("\n"),
}}
/>
)
}
const ChartTooltip = RechartsPrimitive.Tooltip
function ChartTooltipContent({
active,
payload,
className,
indicator = "dot",
hideLabel = false,
hideIndicator = false,
label,
labelFormatter,
labelClassName,
formatter,
color,
nameKey,
labelKey,
}: React.ComponentProps<typeof RechartsPrimitive.Tooltip> &
React.ComponentProps<"div"> & {
hideLabel?: boolean
hideIndicator?: boolean
indicator?: "line" | "dot" | "dashed"
nameKey?: string
labelKey?: string
} & Omit<
RechartsPrimitive.DefaultTooltipContentProps<
TooltipValueType,
TooltipNameType
>,
"accessibilityLayer"
>) {
const { config } = useChart()
const tooltipLabel = React.useMemo(() => {
if (hideLabel || !payload?.length) {
return null
}
const [item] = payload
const key = `${labelKey ?? item?.dataKey ?? item?.name ?? "value"}`
const itemConfig = getPayloadConfigFromPayload(config, item, key)
const value =
!labelKey && typeof label === "string"
? (config[label]?.label ?? label)
: itemConfig?.label
if (labelFormatter) {
return (
<div className={cn("font-medium", labelClassName)}>
{labelFormatter(value, payload)}
</div>
)
}
if (!value) {
return null
}
return <div className={cn("font-medium", labelClassName)}>{value}</div>
}, [
label,
labelFormatter,
payload,
hideLabel,
labelClassName,
config,
labelKey,
])
if (!active || !payload?.length) {
return null
}
const nestLabel = payload.length === 1 && indicator !== "dot"
return (
<div
className={cn(
"grid min-w-32 items-start gap-1.5 rounded-lg border border-border/50 bg-background px-2.5 py-1.5 text-xs shadow-xl",
className
)}
>
{!nestLabel ? tooltipLabel : null}
<div className="grid gap-1.5">
{payload
.filter((item) => item.type !== "none")
.map((item, index) => {
const key = `${nameKey ?? item.name ?? item.dataKey ?? "value"}`
const itemConfig = getPayloadConfigFromPayload(config, item, key)
const indicatorColor = color ?? item.payload?.fill ?? item.color
return (
<div
key={index}
className={cn(
"flex w-full flex-wrap items-stretch gap-2 [&>svg]:h-2.5 [&>svg]:w-2.5 [&>svg]:text-muted-foreground",
indicator === "dot" && "items-center"
)}
>
{formatter && item?.value !== undefined && item.name ? (
formatter(item.value, item.name, item, index, item.payload)
) : (
<>
{itemConfig?.icon ? (
<itemConfig.icon />
) : (
!hideIndicator && (
<div
className={cn(
"shrink-0 rounded-[2px] border-(--color-border) bg-(--color-bg)",
{
"h-2.5 w-2.5": indicator === "dot",
"w-1": indicator === "line",
"w-0 border-[1.5px] border-dashed bg-transparent":
indicator === "dashed",
"my-0.5": nestLabel && indicator === "dashed",
}
)}
style={
{
"--color-bg": indicatorColor,
"--color-border": indicatorColor,
} as React.CSSProperties
}
/>
)
)}
<div
className={cn(
"flex flex-1 justify-between leading-none",
nestLabel ? "items-end" : "items-center"
)}
>
<div className="grid gap-1.5">
{nestLabel ? tooltipLabel : null}
<span className="text-muted-foreground">
{itemConfig?.label ?? item.name}
</span>
</div>
{item.value != null && (
<span className="font-mono font-medium text-foreground tabular-nums">
{typeof item.value === "number"
? item.value.toLocaleString()
: String(item.value)}
</span>
)}
</div>
</>
)}
</div>
)
})}
</div>
</div>
)
}
const ChartLegend = RechartsPrimitive.Legend
function ChartLegendContent({
className,
hideIcon = false,
payload,
verticalAlign = "bottom",
nameKey,
}: React.ComponentProps<"div"> & {
hideIcon?: boolean
nameKey?: string
} & RechartsPrimitive.DefaultLegendContentProps) {
const { config } = useChart()
if (!payload?.length) {
return null
}
return (
<div
className={cn(
"flex items-center justify-center gap-4",
verticalAlign === "top" ? "pb-3" : "pt-3",
className
)}
>
{payload
.filter((item) => item.type !== "none")
.map((item, index) => {
const key = `${nameKey ?? item.dataKey ?? "value"}`
const itemConfig = getPayloadConfigFromPayload(config, item, key)
return (
<div
key={index}
className={cn(
"flex items-center gap-1.5 [&>svg]:h-3 [&>svg]:w-3 [&>svg]:text-muted-foreground"
)}
>
{itemConfig?.icon && !hideIcon ? (
<itemConfig.icon />
) : (
<div
className="h-2 w-2 shrink-0 rounded-[2px]"
style={{
backgroundColor: item.color,
}}
/>
)}
{itemConfig?.label}
</div>
)
})}
</div>
)
}
function getPayloadConfigFromPayload(
config: ChartConfig,
payload: unknown,
key: string
) {
if (typeof payload !== "object" || payload === null) {
return undefined
}
const payloadPayload =
"payload" in payload &&
typeof payload.payload === "object" &&
payload.payload !== null
? payload.payload
: undefined
let configLabelKey: string = key
if (
key in payload &&
typeof payload[key as keyof typeof payload] === "string"
) {
configLabelKey = payload[key as keyof typeof payload] as string
} else if (
payloadPayload &&
key in payloadPayload &&
typeof payloadPayload[key as keyof typeof payloadPayload] === "string"
) {
configLabelKey = payloadPayload[
key as keyof typeof payloadPayload
] as string
}
return configLabelKey in config ? config[configLabelKey] : config[key]
}
export {
ChartContainer,
ChartTooltip,
ChartTooltipContent,
ChartLegend,
ChartLegendContent,
ChartStyle,
}Add a Grid
Let's add a grid to the chart.
CartesianGrid component.import { Bar, BarChart, CartesianGrid } from "recharts"CartesianGrid component to your chart.<ChartContainer config={chartConfig} className="min-h-[200px] w-full">
<BarChart accessibilityLayer data={chartData}>
<CartesianGrid vertical={false} />
<Bar dataKey="desktop" fill="var(--color-desktop)" radius={4} />
<Bar dataKey="mobile" fill="var(--color-mobile)" radius={4} />
</BarChart>
</ChartContainer>chart-example-grid
KRDS 미리보기는 준비 중입니다. 코드 탭에서 설치되는 소스를 확인하세요.
"use client"
import * as React from "react"
import * as RechartsPrimitive from "recharts"
import type { TooltipValueType } from "recharts"
import { cn } from "@/lib/utils"
// Format: { THEME_NAME: CSS_SELECTOR }
const THEMES = { light: "", dark: ".dark" } as const
const INITIAL_DIMENSION = { width: 320, height: 200 } as const
type TooltipNameType = number | string
export type ChartConfig = Record<
string,
{
label?: React.ReactNode
icon?: React.ComponentType
} & (
| { color?: string; theme?: never }
| { color?: never; theme: Record<keyof typeof THEMES, string> }
)
>
type ChartContextProps = {
config: ChartConfig
}
const ChartContext = React.createContext<ChartContextProps | null>(null)
function useChart() {
const context = React.useContext(ChartContext)
if (!context) {
throw new Error("useChart must be used within a <ChartContainer />")
}
return context
}
function ChartContainer({
id,
className,
children,
config,
initialDimension = INITIAL_DIMENSION,
...props
}: React.ComponentProps<"div"> & {
config: ChartConfig
children: React.ComponentProps<
typeof RechartsPrimitive.ResponsiveContainer
>["children"]
initialDimension?: {
width: number
height: number
}
}) {
const uniqueId = React.useId()
const chartId = `chart-${id ?? uniqueId.replace(/:/g, "")}`
return (
<ChartContext.Provider value={{ config }}>
<div
data-slot="chart"
data-chart={chartId}
className={cn(
"flex aspect-video justify-center text-xs [&_.recharts-cartesian-axis-tick_text]:fill-muted-foreground [&_.recharts-cartesian-grid_line[stroke='#ccc']]:stroke-border/50 [&_.recharts-curve.recharts-tooltip-cursor]:stroke-border [&_.recharts-dot[stroke='#fff']]:stroke-transparent [&_.recharts-layer]:outline-hidden [&_.recharts-polar-grid_[stroke='#ccc']]:stroke-border [&_.recharts-radial-bar-background-sector]:fill-muted [&_.recharts-rectangle.recharts-tooltip-cursor]:fill-muted [&_.recharts-reference-line_[stroke='#ccc']]:stroke-border [&_.recharts-sector]:outline-hidden [&_.recharts-sector[stroke='#fff']]:stroke-transparent [&_.recharts-surface]:outline-hidden",
className
)}
{...props}
>
<ChartStyle id={chartId} config={config} />
<RechartsPrimitive.ResponsiveContainer
initialDimension={initialDimension}
>
{children}
</RechartsPrimitive.ResponsiveContainer>
</div>
</ChartContext.Provider>
)
}
const ChartStyle = ({ id, config }: { id: string; config: ChartConfig }) => {
const colorConfig = Object.entries(config).filter(
([, config]) => config.theme ?? config.color
)
if (!colorConfig.length) {
return null
}
return (
<style
dangerouslySetInnerHTML={{
__html: Object.entries(THEMES)
.map(
([theme, prefix]) => `
${prefix} [data-chart=${id}] {
${colorConfig
.map(([key, itemConfig]) => {
const color =
itemConfig.theme?.[theme as keyof typeof itemConfig.theme] ??
itemConfig.color
return color ? ` --color-${key}: ${color};` : null
})
.join("\n")}
}
`
)
.join("\n"),
}}
/>
)
}
const ChartTooltip = RechartsPrimitive.Tooltip
function ChartTooltipContent({
active,
payload,
className,
indicator = "dot",
hideLabel = false,
hideIndicator = false,
label,
labelFormatter,
labelClassName,
formatter,
color,
nameKey,
labelKey,
}: React.ComponentProps<typeof RechartsPrimitive.Tooltip> &
React.ComponentProps<"div"> & {
hideLabel?: boolean
hideIndicator?: boolean
indicator?: "line" | "dot" | "dashed"
nameKey?: string
labelKey?: string
} & Omit<
RechartsPrimitive.DefaultTooltipContentProps<
TooltipValueType,
TooltipNameType
>,
"accessibilityLayer"
>) {
const { config } = useChart()
const tooltipLabel = React.useMemo(() => {
if (hideLabel || !payload?.length) {
return null
}
const [item] = payload
const key = `${labelKey ?? item?.dataKey ?? item?.name ?? "value"}`
const itemConfig = getPayloadConfigFromPayload(config, item, key)
const value =
!labelKey && typeof label === "string"
? (config[label]?.label ?? label)
: itemConfig?.label
if (labelFormatter) {
return (
<div className={cn("font-medium", labelClassName)}>
{labelFormatter(value, payload)}
</div>
)
}
if (!value) {
return null
}
return <div className={cn("font-medium", labelClassName)}>{value}</div>
}, [
label,
labelFormatter,
payload,
hideLabel,
labelClassName,
config,
labelKey,
])
if (!active || !payload?.length) {
return null
}
const nestLabel = payload.length === 1 && indicator !== "dot"
return (
<div
className={cn(
"grid min-w-32 items-start gap-1.5 rounded-lg border border-border/50 bg-background px-2.5 py-1.5 text-xs shadow-xl",
className
)}
>
{!nestLabel ? tooltipLabel : null}
<div className="grid gap-1.5">
{payload
.filter((item) => item.type !== "none")
.map((item, index) => {
const key = `${nameKey ?? item.name ?? item.dataKey ?? "value"}`
const itemConfig = getPayloadConfigFromPayload(config, item, key)
const indicatorColor = color ?? item.payload?.fill ?? item.color
return (
<div
key={index}
className={cn(
"flex w-full flex-wrap items-stretch gap-2 [&>svg]:h-2.5 [&>svg]:w-2.5 [&>svg]:text-muted-foreground",
indicator === "dot" && "items-center"
)}
>
{formatter && item?.value !== undefined && item.name ? (
formatter(item.value, item.name, item, index, item.payload)
) : (
<>
{itemConfig?.icon ? (
<itemConfig.icon />
) : (
!hideIndicator && (
<div
className={cn(
"shrink-0 rounded-[2px] border-(--color-border) bg-(--color-bg)",
{
"h-2.5 w-2.5": indicator === "dot",
"w-1": indicator === "line",
"w-0 border-[1.5px] border-dashed bg-transparent":
indicator === "dashed",
"my-0.5": nestLabel && indicator === "dashed",
}
)}
style={
{
"--color-bg": indicatorColor,
"--color-border": indicatorColor,
} as React.CSSProperties
}
/>
)
)}
<div
className={cn(
"flex flex-1 justify-between leading-none",
nestLabel ? "items-end" : "items-center"
)}
>
<div className="grid gap-1.5">
{nestLabel ? tooltipLabel : null}
<span className="text-muted-foreground">
{itemConfig?.label ?? item.name}
</span>
</div>
{item.value != null && (
<span className="font-mono font-medium text-foreground tabular-nums">
{typeof item.value === "number"
? item.value.toLocaleString()
: String(item.value)}
</span>
)}
</div>
</>
)}
</div>
)
})}
</div>
</div>
)
}
const ChartLegend = RechartsPrimitive.Legend
function ChartLegendContent({
className,
hideIcon = false,
payload,
verticalAlign = "bottom",
nameKey,
}: React.ComponentProps<"div"> & {
hideIcon?: boolean
nameKey?: string
} & RechartsPrimitive.DefaultLegendContentProps) {
const { config } = useChart()
if (!payload?.length) {
return null
}
return (
<div
className={cn(
"flex items-center justify-center gap-4",
verticalAlign === "top" ? "pb-3" : "pt-3",
className
)}
>
{payload
.filter((item) => item.type !== "none")
.map((item, index) => {
const key = `${nameKey ?? item.dataKey ?? "value"}`
const itemConfig = getPayloadConfigFromPayload(config, item, key)
return (
<div
key={index}
className={cn(
"flex items-center gap-1.5 [&>svg]:h-3 [&>svg]:w-3 [&>svg]:text-muted-foreground"
)}
>
{itemConfig?.icon && !hideIcon ? (
<itemConfig.icon />
) : (
<div
className="h-2 w-2 shrink-0 rounded-[2px]"
style={{
backgroundColor: item.color,
}}
/>
)}
{itemConfig?.label}
</div>
)
})}
</div>
)
}
function getPayloadConfigFromPayload(
config: ChartConfig,
payload: unknown,
key: string
) {
if (typeof payload !== "object" || payload === null) {
return undefined
}
const payloadPayload =
"payload" in payload &&
typeof payload.payload === "object" &&
payload.payload !== null
? payload.payload
: undefined
let configLabelKey: string = key
if (
key in payload &&
typeof payload[key as keyof typeof payload] === "string"
) {
configLabelKey = payload[key as keyof typeof payload] as string
} else if (
payloadPayload &&
key in payloadPayload &&
typeof payloadPayload[key as keyof typeof payloadPayload] === "string"
) {
configLabelKey = payloadPayload[
key as keyof typeof payloadPayload
] as string
}
return configLabelKey in config ? config[configLabelKey] : config[key]
}
export {
ChartContainer,
ChartTooltip,
ChartTooltipContent,
ChartLegend,
ChartLegendContent,
ChartStyle,
}Add an Axis
To add an x-axis to the chart, we'll use the XAxis component.
XAxis component.import { Bar, BarChart, CartesianGrid, XAxis } from "recharts"XAxis component to your chart.<ChartContainer config={chartConfig} className="h-[200px] w-full">
<BarChart accessibilityLayer data={chartData}>
<CartesianGrid vertical={false} />
<XAxis
dataKey="month"
tickLine={false}
tickMargin={10}
axisLine={false}
tickFormatter={(value) => value.slice(0, 3)}
/>
<Bar dataKey="desktop" fill="var(--color-desktop)" radius={4} />
<Bar dataKey="mobile" fill="var(--color-mobile)" radius={4} />
</BarChart>
</ChartContainer>chart-example-axis
KRDS 미리보기는 준비 중입니다. 코드 탭에서 설치되는 소스를 확인하세요.
"use client"
import * as React from "react"
import * as RechartsPrimitive from "recharts"
import type { TooltipValueType } from "recharts"
import { cn } from "@/lib/utils"
// Format: { THEME_NAME: CSS_SELECTOR }
const THEMES = { light: "", dark: ".dark" } as const
const INITIAL_DIMENSION = { width: 320, height: 200 } as const
type TooltipNameType = number | string
export type ChartConfig = Record<
string,
{
label?: React.ReactNode
icon?: React.ComponentType
} & (
| { color?: string; theme?: never }
| { color?: never; theme: Record<keyof typeof THEMES, string> }
)
>
type ChartContextProps = {
config: ChartConfig
}
const ChartContext = React.createContext<ChartContextProps | null>(null)
function useChart() {
const context = React.useContext(ChartContext)
if (!context) {
throw new Error("useChart must be used within a <ChartContainer />")
}
return context
}
function ChartContainer({
id,
className,
children,
config,
initialDimension = INITIAL_DIMENSION,
...props
}: React.ComponentProps<"div"> & {
config: ChartConfig
children: React.ComponentProps<
typeof RechartsPrimitive.ResponsiveContainer
>["children"]
initialDimension?: {
width: number
height: number
}
}) {
const uniqueId = React.useId()
const chartId = `chart-${id ?? uniqueId.replace(/:/g, "")}`
return (
<ChartContext.Provider value={{ config }}>
<div
data-slot="chart"
data-chart={chartId}
className={cn(
"flex aspect-video justify-center text-xs [&_.recharts-cartesian-axis-tick_text]:fill-muted-foreground [&_.recharts-cartesian-grid_line[stroke='#ccc']]:stroke-border/50 [&_.recharts-curve.recharts-tooltip-cursor]:stroke-border [&_.recharts-dot[stroke='#fff']]:stroke-transparent [&_.recharts-layer]:outline-hidden [&_.recharts-polar-grid_[stroke='#ccc']]:stroke-border [&_.recharts-radial-bar-background-sector]:fill-muted [&_.recharts-rectangle.recharts-tooltip-cursor]:fill-muted [&_.recharts-reference-line_[stroke='#ccc']]:stroke-border [&_.recharts-sector]:outline-hidden [&_.recharts-sector[stroke='#fff']]:stroke-transparent [&_.recharts-surface]:outline-hidden",
className
)}
{...props}
>
<ChartStyle id={chartId} config={config} />
<RechartsPrimitive.ResponsiveContainer
initialDimension={initialDimension}
>
{children}
</RechartsPrimitive.ResponsiveContainer>
</div>
</ChartContext.Provider>
)
}
const ChartStyle = ({ id, config }: { id: string; config: ChartConfig }) => {
const colorConfig = Object.entries(config).filter(
([, config]) => config.theme ?? config.color
)
if (!colorConfig.length) {
return null
}
return (
<style
dangerouslySetInnerHTML={{
__html: Object.entries(THEMES)
.map(
([theme, prefix]) => `
${prefix} [data-chart=${id}] {
${colorConfig
.map(([key, itemConfig]) => {
const color =
itemConfig.theme?.[theme as keyof typeof itemConfig.theme] ??
itemConfig.color
return color ? ` --color-${key}: ${color};` : null
})
.join("\n")}
}
`
)
.join("\n"),
}}
/>
)
}
const ChartTooltip = RechartsPrimitive.Tooltip
function ChartTooltipContent({
active,
payload,
className,
indicator = "dot",
hideLabel = false,
hideIndicator = false,
label,
labelFormatter,
labelClassName,
formatter,
color,
nameKey,
labelKey,
}: React.ComponentProps<typeof RechartsPrimitive.Tooltip> &
React.ComponentProps<"div"> & {
hideLabel?: boolean
hideIndicator?: boolean
indicator?: "line" | "dot" | "dashed"
nameKey?: string
labelKey?: string
} & Omit<
RechartsPrimitive.DefaultTooltipContentProps<
TooltipValueType,
TooltipNameType
>,
"accessibilityLayer"
>) {
const { config } = useChart()
const tooltipLabel = React.useMemo(() => {
if (hideLabel || !payload?.length) {
return null
}
const [item] = payload
const key = `${labelKey ?? item?.dataKey ?? item?.name ?? "value"}`
const itemConfig = getPayloadConfigFromPayload(config, item, key)
const value =
!labelKey && typeof label === "string"
? (config[label]?.label ?? label)
: itemConfig?.label
if (labelFormatter) {
return (
<div className={cn("font-medium", labelClassName)}>
{labelFormatter(value, payload)}
</div>
)
}
if (!value) {
return null
}
return <div className={cn("font-medium", labelClassName)}>{value}</div>
}, [
label,
labelFormatter,
payload,
hideLabel,
labelClassName,
config,
labelKey,
])
if (!active || !payload?.length) {
return null
}
const nestLabel = payload.length === 1 && indicator !== "dot"
return (
<div
className={cn(
"grid min-w-32 items-start gap-1.5 rounded-lg border border-border/50 bg-background px-2.5 py-1.5 text-xs shadow-xl",
className
)}
>
{!nestLabel ? tooltipLabel : null}
<div className="grid gap-1.5">
{payload
.filter((item) => item.type !== "none")
.map((item, index) => {
const key = `${nameKey ?? item.name ?? item.dataKey ?? "value"}`
const itemConfig = getPayloadConfigFromPayload(config, item, key)
const indicatorColor = color ?? item.payload?.fill ?? item.color
return (
<div
key={index}
className={cn(
"flex w-full flex-wrap items-stretch gap-2 [&>svg]:h-2.5 [&>svg]:w-2.5 [&>svg]:text-muted-foreground",
indicator === "dot" && "items-center"
)}
>
{formatter && item?.value !== undefined && item.name ? (
formatter(item.value, item.name, item, index, item.payload)
) : (
<>
{itemConfig?.icon ? (
<itemConfig.icon />
) : (
!hideIndicator && (
<div
className={cn(
"shrink-0 rounded-[2px] border-(--color-border) bg-(--color-bg)",
{
"h-2.5 w-2.5": indicator === "dot",
"w-1": indicator === "line",
"w-0 border-[1.5px] border-dashed bg-transparent":
indicator === "dashed",
"my-0.5": nestLabel && indicator === "dashed",
}
)}
style={
{
"--color-bg": indicatorColor,
"--color-border": indicatorColor,
} as React.CSSProperties
}
/>
)
)}
<div
className={cn(
"flex flex-1 justify-between leading-none",
nestLabel ? "items-end" : "items-center"
)}
>
<div className="grid gap-1.5">
{nestLabel ? tooltipLabel : null}
<span className="text-muted-foreground">
{itemConfig?.label ?? item.name}
</span>
</div>
{item.value != null && (
<span className="font-mono font-medium text-foreground tabular-nums">
{typeof item.value === "number"
? item.value.toLocaleString()
: String(item.value)}
</span>
)}
</div>
</>
)}
</div>
)
})}
</div>
</div>
)
}
const ChartLegend = RechartsPrimitive.Legend
function ChartLegendContent({
className,
hideIcon = false,
payload,
verticalAlign = "bottom",
nameKey,
}: React.ComponentProps<"div"> & {
hideIcon?: boolean
nameKey?: string
} & RechartsPrimitive.DefaultLegendContentProps) {
const { config } = useChart()
if (!payload?.length) {
return null
}
return (
<div
className={cn(
"flex items-center justify-center gap-4",
verticalAlign === "top" ? "pb-3" : "pt-3",
className
)}
>
{payload
.filter((item) => item.type !== "none")
.map((item, index) => {
const key = `${nameKey ?? item.dataKey ?? "value"}`
const itemConfig = getPayloadConfigFromPayload(config, item, key)
return (
<div
key={index}
className={cn(
"flex items-center gap-1.5 [&>svg]:h-3 [&>svg]:w-3 [&>svg]:text-muted-foreground"
)}
>
{itemConfig?.icon && !hideIcon ? (
<itemConfig.icon />
) : (
<div
className="h-2 w-2 shrink-0 rounded-[2px]"
style={{
backgroundColor: item.color,
}}
/>
)}
{itemConfig?.label}
</div>
)
})}
</div>
)
}
function getPayloadConfigFromPayload(
config: ChartConfig,
payload: unknown,
key: string
) {
if (typeof payload !== "object" || payload === null) {
return undefined
}
const payloadPayload =
"payload" in payload &&
typeof payload.payload === "object" &&
payload.payload !== null
? payload.payload
: undefined
let configLabelKey: string = key
if (
key in payload &&
typeof payload[key as keyof typeof payload] === "string"
) {
configLabelKey = payload[key as keyof typeof payload] as string
} else if (
payloadPayload &&
key in payloadPayload &&
typeof payloadPayload[key as keyof typeof payloadPayload] === "string"
) {
configLabelKey = payloadPayload[
key as keyof typeof payloadPayload
] as string
}
return configLabelKey in config ? config[configLabelKey] : config[key]
}
export {
ChartContainer,
ChartTooltip,
ChartTooltipContent,
ChartLegend,
ChartLegendContent,
ChartStyle,
}Add Tooltip
So far we've only used components from Recharts. They look great out of the box thanks to some customization in the chart component.
To add a tooltip, we'll use the custom ChartTooltip and ChartTooltipContent components from chart.
ChartTooltip and ChartTooltipContent components.import { ChartTooltip, ChartTooltipContent } from "@/components/ui/chart"<ChartContainer config={chartConfig} className="h-[200px] w-full">
<BarChart accessibilityLayer data={chartData}>
<CartesianGrid vertical={false} />
<XAxis
dataKey="month"
tickLine={false}
tickMargin={10}
axisLine={false}
tickFormatter={(value) => value.slice(0, 3)}
/>
<ChartTooltip content={<ChartTooltipContent />} />
<Bar dataKey="desktop" fill="var(--color-desktop)" radius={4} />
<Bar dataKey="mobile" fill="var(--color-mobile)" radius={4} />
</BarChart>
</ChartContainer>chart-example-tooltip
KRDS 미리보기는 준비 중입니다. 코드 탭에서 설치되는 소스를 확인하세요.
"use client"
import * as React from "react"
import * as RechartsPrimitive from "recharts"
import type { TooltipValueType } from "recharts"
import { cn } from "@/lib/utils"
// Format: { THEME_NAME: CSS_SELECTOR }
const THEMES = { light: "", dark: ".dark" } as const
const INITIAL_DIMENSION = { width: 320, height: 200 } as const
type TooltipNameType = number | string
export type ChartConfig = Record<
string,
{
label?: React.ReactNode
icon?: React.ComponentType
} & (
| { color?: string; theme?: never }
| { color?: never; theme: Record<keyof typeof THEMES, string> }
)
>
type ChartContextProps = {
config: ChartConfig
}
const ChartContext = React.createContext<ChartContextProps | null>(null)
function useChart() {
const context = React.useContext(ChartContext)
if (!context) {
throw new Error("useChart must be used within a <ChartContainer />")
}
return context
}
function ChartContainer({
id,
className,
children,
config,
initialDimension = INITIAL_DIMENSION,
...props
}: React.ComponentProps<"div"> & {
config: ChartConfig
children: React.ComponentProps<
typeof RechartsPrimitive.ResponsiveContainer
>["children"]
initialDimension?: {
width: number
height: number
}
}) {
const uniqueId = React.useId()
const chartId = `chart-${id ?? uniqueId.replace(/:/g, "")}`
return (
<ChartContext.Provider value={{ config }}>
<div
data-slot="chart"
data-chart={chartId}
className={cn(
"flex aspect-video justify-center text-xs [&_.recharts-cartesian-axis-tick_text]:fill-muted-foreground [&_.recharts-cartesian-grid_line[stroke='#ccc']]:stroke-border/50 [&_.recharts-curve.recharts-tooltip-cursor]:stroke-border [&_.recharts-dot[stroke='#fff']]:stroke-transparent [&_.recharts-layer]:outline-hidden [&_.recharts-polar-grid_[stroke='#ccc']]:stroke-border [&_.recharts-radial-bar-background-sector]:fill-muted [&_.recharts-rectangle.recharts-tooltip-cursor]:fill-muted [&_.recharts-reference-line_[stroke='#ccc']]:stroke-border [&_.recharts-sector]:outline-hidden [&_.recharts-sector[stroke='#fff']]:stroke-transparent [&_.recharts-surface]:outline-hidden",
className
)}
{...props}
>
<ChartStyle id={chartId} config={config} />
<RechartsPrimitive.ResponsiveContainer
initialDimension={initialDimension}
>
{children}
</RechartsPrimitive.ResponsiveContainer>
</div>
</ChartContext.Provider>
)
}
const ChartStyle = ({ id, config }: { id: string; config: ChartConfig }) => {
const colorConfig = Object.entries(config).filter(
([, config]) => config.theme ?? config.color
)
if (!colorConfig.length) {
return null
}
return (
<style
dangerouslySetInnerHTML={{
__html: Object.entries(THEMES)
.map(
([theme, prefix]) => `
${prefix} [data-chart=${id}] {
${colorConfig
.map(([key, itemConfig]) => {
const color =
itemConfig.theme?.[theme as keyof typeof itemConfig.theme] ??
itemConfig.color
return color ? ` --color-${key}: ${color};` : null
})
.join("\n")}
}
`
)
.join("\n"),
}}
/>
)
}
const ChartTooltip = RechartsPrimitive.Tooltip
function ChartTooltipContent({
active,
payload,
className,
indicator = "dot",
hideLabel = false,
hideIndicator = false,
label,
labelFormatter,
labelClassName,
formatter,
color,
nameKey,
labelKey,
}: React.ComponentProps<typeof RechartsPrimitive.Tooltip> &
React.ComponentProps<"div"> & {
hideLabel?: boolean
hideIndicator?: boolean
indicator?: "line" | "dot" | "dashed"
nameKey?: string
labelKey?: string
} & Omit<
RechartsPrimitive.DefaultTooltipContentProps<
TooltipValueType,
TooltipNameType
>,
"accessibilityLayer"
>) {
const { config } = useChart()
const tooltipLabel = React.useMemo(() => {
if (hideLabel || !payload?.length) {
return null
}
const [item] = payload
const key = `${labelKey ?? item?.dataKey ?? item?.name ?? "value"}`
const itemConfig = getPayloadConfigFromPayload(config, item, key)
const value =
!labelKey && typeof label === "string"
? (config[label]?.label ?? label)
: itemConfig?.label
if (labelFormatter) {
return (
<div className={cn("font-medium", labelClassName)}>
{labelFormatter(value, payload)}
</div>
)
}
if (!value) {
return null
}
return <div className={cn("font-medium", labelClassName)}>{value}</div>
}, [
label,
labelFormatter,
payload,
hideLabel,
labelClassName,
config,
labelKey,
])
if (!active || !payload?.length) {
return null
}
const nestLabel = payload.length === 1 && indicator !== "dot"
return (
<div
className={cn(
"grid min-w-32 items-start gap-1.5 rounded-lg border border-border/50 bg-background px-2.5 py-1.5 text-xs shadow-xl",
className
)}
>
{!nestLabel ? tooltipLabel : null}
<div className="grid gap-1.5">
{payload
.filter((item) => item.type !== "none")
.map((item, index) => {
const key = `${nameKey ?? item.name ?? item.dataKey ?? "value"}`
const itemConfig = getPayloadConfigFromPayload(config, item, key)
const indicatorColor = color ?? item.payload?.fill ?? item.color
return (
<div
key={index}
className={cn(
"flex w-full flex-wrap items-stretch gap-2 [&>svg]:h-2.5 [&>svg]:w-2.5 [&>svg]:text-muted-foreground",
indicator === "dot" && "items-center"
)}
>
{formatter && item?.value !== undefined && item.name ? (
formatter(item.value, item.name, item, index, item.payload)
) : (
<>
{itemConfig?.icon ? (
<itemConfig.icon />
) : (
!hideIndicator && (
<div
className={cn(
"shrink-0 rounded-[2px] border-(--color-border) bg-(--color-bg)",
{
"h-2.5 w-2.5": indicator === "dot",
"w-1": indicator === "line",
"w-0 border-[1.5px] border-dashed bg-transparent":
indicator === "dashed",
"my-0.5": nestLabel && indicator === "dashed",
}
)}
style={
{
"--color-bg": indicatorColor,
"--color-border": indicatorColor,
} as React.CSSProperties
}
/>
)
)}
<div
className={cn(
"flex flex-1 justify-between leading-none",
nestLabel ? "items-end" : "items-center"
)}
>
<div className="grid gap-1.5">
{nestLabel ? tooltipLabel : null}
<span className="text-muted-foreground">
{itemConfig?.label ?? item.name}
</span>
</div>
{item.value != null && (
<span className="font-mono font-medium text-foreground tabular-nums">
{typeof item.value === "number"
? item.value.toLocaleString()
: String(item.value)}
</span>
)}
</div>
</>
)}
</div>
)
})}
</div>
</div>
)
}
const ChartLegend = RechartsPrimitive.Legend
function ChartLegendContent({
className,
hideIcon = false,
payload,
verticalAlign = "bottom",
nameKey,
}: React.ComponentProps<"div"> & {
hideIcon?: boolean
nameKey?: string
} & RechartsPrimitive.DefaultLegendContentProps) {
const { config } = useChart()
if (!payload?.length) {
return null
}
return (
<div
className={cn(
"flex items-center justify-center gap-4",
verticalAlign === "top" ? "pb-3" : "pt-3",
className
)}
>
{payload
.filter((item) => item.type !== "none")
.map((item, index) => {
const key = `${nameKey ?? item.dataKey ?? "value"}`
const itemConfig = getPayloadConfigFromPayload(config, item, key)
return (
<div
key={index}
className={cn(
"flex items-center gap-1.5 [&>svg]:h-3 [&>svg]:w-3 [&>svg]:text-muted-foreground"
)}
>
{itemConfig?.icon && !hideIcon ? (
<itemConfig.icon />
) : (
<div
className="h-2 w-2 shrink-0 rounded-[2px]"
style={{
backgroundColor: item.color,
}}
/>
)}
{itemConfig?.label}
</div>
)
})}
</div>
)
}
function getPayloadConfigFromPayload(
config: ChartConfig,
payload: unknown,
key: string
) {
if (typeof payload !== "object" || payload === null) {
return undefined
}
const payloadPayload =
"payload" in payload &&
typeof payload.payload === "object" &&
payload.payload !== null
? payload.payload
: undefined
let configLabelKey: string = key
if (
key in payload &&
typeof payload[key as keyof typeof payload] === "string"
) {
configLabelKey = payload[key as keyof typeof payload] as string
} else if (
payloadPayload &&
key in payloadPayload &&
typeof payloadPayload[key as keyof typeof payloadPayload] === "string"
) {
configLabelKey = payloadPayload[
key as keyof typeof payloadPayload
] as string
}
return configLabelKey in config ? config[configLabelKey] : config[key]
}
export {
ChartContainer,
ChartTooltip,
ChartTooltipContent,
ChartLegend,
ChartLegendContent,
ChartStyle,
}Hover to see the tooltips. Easy, right? Two components, and we've got a beautiful tooltip.
Add Legend
We'll do the same for the legend. We'll use the ChartLegend and ChartLegendContent components from chart.
ChartLegend and ChartLegendContent components.import { ChartLegend, ChartLegendContent } from "@/components/ui/chart"<ChartContainer config={chartConfig} className="h-[200px] w-full">
<BarChart accessibilityLayer data={chartData}>
<CartesianGrid vertical={false} />
<XAxis
dataKey="month"
tickLine={false}
tickMargin={10}
axisLine={false}
tickFormatter={(value) => value.slice(0, 3)}
/>
<ChartTooltip content={<ChartTooltipContent />} />
<ChartLegend content={<ChartLegendContent />} />
<Bar dataKey="desktop" fill="var(--color-desktop)" radius={4} />
<Bar dataKey="mobile" fill="var(--color-mobile)" radius={4} />
</BarChart>
</ChartContainer>chart-example-legend
KRDS 미리보기는 준비 중입니다. 코드 탭에서 설치되는 소스를 확인하세요.
"use client"
import * as React from "react"
import * as RechartsPrimitive from "recharts"
import type { TooltipValueType } from "recharts"
import { cn } from "@/lib/utils"
// Format: { THEME_NAME: CSS_SELECTOR }
const THEMES = { light: "", dark: ".dark" } as const
const INITIAL_DIMENSION = { width: 320, height: 200 } as const
type TooltipNameType = number | string
export type ChartConfig = Record<
string,
{
label?: React.ReactNode
icon?: React.ComponentType
} & (
| { color?: string; theme?: never }
| { color?: never; theme: Record<keyof typeof THEMES, string> }
)
>
type ChartContextProps = {
config: ChartConfig
}
const ChartContext = React.createContext<ChartContextProps | null>(null)
function useChart() {
const context = React.useContext(ChartContext)
if (!context) {
throw new Error("useChart must be used within a <ChartContainer />")
}
return context
}
function ChartContainer({
id,
className,
children,
config,
initialDimension = INITIAL_DIMENSION,
...props
}: React.ComponentProps<"div"> & {
config: ChartConfig
children: React.ComponentProps<
typeof RechartsPrimitive.ResponsiveContainer
>["children"]
initialDimension?: {
width: number
height: number
}
}) {
const uniqueId = React.useId()
const chartId = `chart-${id ?? uniqueId.replace(/:/g, "")}`
return (
<ChartContext.Provider value={{ config }}>
<div
data-slot="chart"
data-chart={chartId}
className={cn(
"flex aspect-video justify-center text-xs [&_.recharts-cartesian-axis-tick_text]:fill-muted-foreground [&_.recharts-cartesian-grid_line[stroke='#ccc']]:stroke-border/50 [&_.recharts-curve.recharts-tooltip-cursor]:stroke-border [&_.recharts-dot[stroke='#fff']]:stroke-transparent [&_.recharts-layer]:outline-hidden [&_.recharts-polar-grid_[stroke='#ccc']]:stroke-border [&_.recharts-radial-bar-background-sector]:fill-muted [&_.recharts-rectangle.recharts-tooltip-cursor]:fill-muted [&_.recharts-reference-line_[stroke='#ccc']]:stroke-border [&_.recharts-sector]:outline-hidden [&_.recharts-sector[stroke='#fff']]:stroke-transparent [&_.recharts-surface]:outline-hidden",
className
)}
{...props}
>
<ChartStyle id={chartId} config={config} />
<RechartsPrimitive.ResponsiveContainer
initialDimension={initialDimension}
>
{children}
</RechartsPrimitive.ResponsiveContainer>
</div>
</ChartContext.Provider>
)
}
const ChartStyle = ({ id, config }: { id: string; config: ChartConfig }) => {
const colorConfig = Object.entries(config).filter(
([, config]) => config.theme ?? config.color
)
if (!colorConfig.length) {
return null
}
return (
<style
dangerouslySetInnerHTML={{
__html: Object.entries(THEMES)
.map(
([theme, prefix]) => `
${prefix} [data-chart=${id}] {
${colorConfig
.map(([key, itemConfig]) => {
const color =
itemConfig.theme?.[theme as keyof typeof itemConfig.theme] ??
itemConfig.color
return color ? ` --color-${key}: ${color};` : null
})
.join("\n")}
}
`
)
.join("\n"),
}}
/>
)
}
const ChartTooltip = RechartsPrimitive.Tooltip
function ChartTooltipContent({
active,
payload,
className,
indicator = "dot",
hideLabel = false,
hideIndicator = false,
label,
labelFormatter,
labelClassName,
formatter,
color,
nameKey,
labelKey,
}: React.ComponentProps<typeof RechartsPrimitive.Tooltip> &
React.ComponentProps<"div"> & {
hideLabel?: boolean
hideIndicator?: boolean
indicator?: "line" | "dot" | "dashed"
nameKey?: string
labelKey?: string
} & Omit<
RechartsPrimitive.DefaultTooltipContentProps<
TooltipValueType,
TooltipNameType
>,
"accessibilityLayer"
>) {
const { config } = useChart()
const tooltipLabel = React.useMemo(() => {
if (hideLabel || !payload?.length) {
return null
}
const [item] = payload
const key = `${labelKey ?? item?.dataKey ?? item?.name ?? "value"}`
const itemConfig = getPayloadConfigFromPayload(config, item, key)
const value =
!labelKey && typeof label === "string"
? (config[label]?.label ?? label)
: itemConfig?.label
if (labelFormatter) {
return (
<div className={cn("font-medium", labelClassName)}>
{labelFormatter(value, payload)}
</div>
)
}
if (!value) {
return null
}
return <div className={cn("font-medium", labelClassName)}>{value}</div>
}, [
label,
labelFormatter,
payload,
hideLabel,
labelClassName,
config,
labelKey,
])
if (!active || !payload?.length) {
return null
}
const nestLabel = payload.length === 1 && indicator !== "dot"
return (
<div
className={cn(
"grid min-w-32 items-start gap-1.5 rounded-lg border border-border/50 bg-background px-2.5 py-1.5 text-xs shadow-xl",
className
)}
>
{!nestLabel ? tooltipLabel : null}
<div className="grid gap-1.5">
{payload
.filter((item) => item.type !== "none")
.map((item, index) => {
const key = `${nameKey ?? item.name ?? item.dataKey ?? "value"}`
const itemConfig = getPayloadConfigFromPayload(config, item, key)
const indicatorColor = color ?? item.payload?.fill ?? item.color
return (
<div
key={index}
className={cn(
"flex w-full flex-wrap items-stretch gap-2 [&>svg]:h-2.5 [&>svg]:w-2.5 [&>svg]:text-muted-foreground",
indicator === "dot" && "items-center"
)}
>
{formatter && item?.value !== undefined && item.name ? (
formatter(item.value, item.name, item, index, item.payload)
) : (
<>
{itemConfig?.icon ? (
<itemConfig.icon />
) : (
!hideIndicator && (
<div
className={cn(
"shrink-0 rounded-[2px] border-(--color-border) bg-(--color-bg)",
{
"h-2.5 w-2.5": indicator === "dot",
"w-1": indicator === "line",
"w-0 border-[1.5px] border-dashed bg-transparent":
indicator === "dashed",
"my-0.5": nestLabel && indicator === "dashed",
}
)}
style={
{
"--color-bg": indicatorColor,
"--color-border": indicatorColor,
} as React.CSSProperties
}
/>
)
)}
<div
className={cn(
"flex flex-1 justify-between leading-none",
nestLabel ? "items-end" : "items-center"
)}
>
<div className="grid gap-1.5">
{nestLabel ? tooltipLabel : null}
<span className="text-muted-foreground">
{itemConfig?.label ?? item.name}
</span>
</div>
{item.value != null && (
<span className="font-mono font-medium text-foreground tabular-nums">
{typeof item.value === "number"
? item.value.toLocaleString()
: String(item.value)}
</span>
)}
</div>
</>
)}
</div>
)
})}
</div>
</div>
)
}
const ChartLegend = RechartsPrimitive.Legend
function ChartLegendContent({
className,
hideIcon = false,
payload,
verticalAlign = "bottom",
nameKey,
}: React.ComponentProps<"div"> & {
hideIcon?: boolean
nameKey?: string
} & RechartsPrimitive.DefaultLegendContentProps) {
const { config } = useChart()
if (!payload?.length) {
return null
}
return (
<div
className={cn(
"flex items-center justify-center gap-4",
verticalAlign === "top" ? "pb-3" : "pt-3",
className
)}
>
{payload
.filter((item) => item.type !== "none")
.map((item, index) => {
const key = `${nameKey ?? item.dataKey ?? "value"}`
const itemConfig = getPayloadConfigFromPayload(config, item, key)
return (
<div
key={index}
className={cn(
"flex items-center gap-1.5 [&>svg]:h-3 [&>svg]:w-3 [&>svg]:text-muted-foreground"
)}
>
{itemConfig?.icon && !hideIcon ? (
<itemConfig.icon />
) : (
<div
className="h-2 w-2 shrink-0 rounded-[2px]"
style={{
backgroundColor: item.color,
}}
/>
)}
{itemConfig?.label}
</div>
)
})}
</div>
)
}
function getPayloadConfigFromPayload(
config: ChartConfig,
payload: unknown,
key: string
) {
if (typeof payload !== "object" || payload === null) {
return undefined
}
const payloadPayload =
"payload" in payload &&
typeof payload.payload === "object" &&
payload.payload !== null
? payload.payload
: undefined
let configLabelKey: string = key
if (
key in payload &&
typeof payload[key as keyof typeof payload] === "string"
) {
configLabelKey = payload[key as keyof typeof payload] as string
} else if (
payloadPayload &&
key in payloadPayload &&
typeof payloadPayload[key as keyof typeof payloadPayload] === "string"
) {
configLabelKey = payloadPayload[
key as keyof typeof payloadPayload
] as string
}
return configLabelKey in config ? config[configLabelKey] : config[key]
}
export {
ChartContainer,
ChartTooltip,
ChartTooltipContent,
ChartLegend,
ChartLegendContent,
ChartStyle,
}Done. You've built your first chart! What's next?
Chart Config
The chart config is where you define the labels, icons and colors for a chart.
It is intentionally decoupled from chart data.
This allows you to share config and color tokens between charts. It can also work independently for cases where your data or color tokens live remotely or in a different format.
import { Monitor } from "lucide-react"
import { type ChartConfig } from "@/components/ui/chart"
const chartConfig = {
desktop: {
label: "Desktop",
icon: Monitor,
// A color like 'hsl(220, 98%, 61%)' or 'var(--color-name)'
color: "#2563eb",
// OR a theme object with 'light' and 'dark' keys
theme: {
light: "#2563eb",
dark: "#dc2626",
},
},
} satisfies ChartConfigTheming
Charts have built-in support for theming. You can use css variables (recommended) or color values in any color format, such as hex, hsl or oklch.
CSS Variables
@layer base {
:root {
--chart-1: oklch(0.646 0.222 41.116);
--chart-2: oklch(0.6 0.118 184.704);
}
.dark {
--chart-1: oklch(0.488 0.243 264.376);
--chart-2: oklch(0.696 0.17 162.48);
}
}chartConfigconst chartConfig = {
desktop: {
label: "Desktop",
color: "var(--chart-1)",
},
mobile: {
label: "Mobile",
color: "var(--chart-2)",
},
} satisfies ChartConfighex, hsl or oklch
You can also define your colors directly in the chart config. Use the color format you prefer.
const chartConfig = {
desktop: {
label: "Desktop",
color: "#2563eb",
},
mobile: {
label: "Mobile",
color: "hsl(220, 98%, 61%)",
},
tablet: {
label: "Tablet",
color: "oklch(0.5 0.2 240)",
},
laptop: {
label: "Laptop",
color: "var(--chart-2)",
},
} satisfies ChartConfigUsing Colors
To use the theme colors in your chart, reference the colors using the format var(--color-KEY).
Components
<Bar dataKey="desktop" fill="var(--color-desktop)" />Chart Data
const chartData = [
{ browser: "chrome", visitors: 275, fill: "var(--color-chrome)" },
{ browser: "safari", visitors: 200, fill: "var(--color-safari)" },
]Tailwind
<LabelList className="fill-(--color-desktop)" />Tooltip
A chart tooltip contains a label, name, indicator and value. You can use a combination of these to customize your tooltip.
chart-tooltip
KRDS 미리보기는 준비 중입니다. 코드 탭에서 설치되는 소스를 확인하세요.
You can turn on/off any of these using the hideLabel, hideIndicator props and customize the indicator style using the indicator prop.
Use labelKey and nameKey to use a custom key for the tooltip label and name.
Chart comes with the <ChartTooltip> and <ChartTooltipContent> components. You can use these two components to add custom tooltips to your chart.
import { ChartTooltip, ChartTooltipContent } from "@/components/ui/chart"<ChartTooltip content={<ChartTooltipContent />} />Props
Use the following props to customize the tooltip.
| Prop | Type | Description |
|---|---|---|
labelKey | string | The config or data key to use for the label. |
nameKey | string | The config or data key to use for the name. |
indicator | dot line or dashed | The indicator style for the tooltip. |
hideLabel | boolean | Whether to hide the label. |
hideIndicator | boolean | Whether to hide the indicator. |
Colors
Colors are automatically referenced from the chart config.
Custom
To use a custom key for tooltip label and names, use the labelKey and nameKey props.
const chartData = [
{ browser: "chrome", visitors: 187, fill: "var(--color-chrome)" },
{ browser: "safari", visitors: 200, fill: "var(--color-safari)" },
]
const chartConfig = {
visitors: {
label: "Total Visitors",
},
chrome: {
label: "Chrome",
color: "var(--chart-1)",
},
safari: {
label: "Safari",
color: "var(--chart-2)",
},
} satisfies ChartConfig<ChartTooltip
content={<ChartTooltipContent labelKey="visitors" nameKey="browser" />}
/>This will use Total Visitors for label and Chrome and Safari for the tooltip names.
Legend
You can use the custom <ChartLegend> and <ChartLegendContent> components to add a legend to your chart.
import { ChartLegend, ChartLegendContent } from "@/components/ui/chart"<ChartLegend content={<ChartLegendContent />} />Colors
Colors are automatically referenced from the chart config.
Custom
To use a custom key for legend names, use the nameKey prop.
const chartData = [
{ browser: "chrome", visitors: 187, fill: "var(--color-chrome)" },
{ browser: "safari", visitors: 200, fill: "var(--color-safari)" },
]
const chartConfig = {
chrome: {
label: "Chrome",
color: "var(--chart-1)",
},
safari: {
label: "Safari",
color: "var(--chart-2)",
},
} satisfies ChartConfig<ChartLegend content={<ChartLegendContent nameKey="browser" />} />This will use Chrome and Safari for the legend names.
Accessibility
You can turn on the accessibilityLayer prop to add an accessible layer to your chart.
This prop adds keyboard access and screen reader support to your charts.
<LineChart accessibilityLayer />RTL
To enable RTL support in krdscn/ui, see the RTL configuration guide.
chart-rtl
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"use client"
import * as React from "react"
import * as RechartsPrimitive from "recharts"
import type { TooltipValueType } from "recharts"
import { cn } from "@/lib/utils"
// Format: { THEME_NAME: CSS_SELECTOR }
const THEMES = { light: "", dark: ".dark" } as const
const INITIAL_DIMENSION = { width: 320, height: 200 } as const
type TooltipNameType = number | string
export type ChartConfig = Record<
string,
{
label?: React.ReactNode
icon?: React.ComponentType
} & (
| { color?: string; theme?: never }
| { color?: never; theme: Record<keyof typeof THEMES, string> }
)
>
type ChartContextProps = {
config: ChartConfig
}
const ChartContext = React.createContext<ChartContextProps | null>(null)
function useChart() {
const context = React.useContext(ChartContext)
if (!context) {
throw new Error("useChart must be used within a <ChartContainer />")
}
return context
}
function ChartContainer({
id,
className,
children,
config,
initialDimension = INITIAL_DIMENSION,
...props
}: React.ComponentProps<"div"> & {
config: ChartConfig
children: React.ComponentProps<
typeof RechartsPrimitive.ResponsiveContainer
>["children"]
initialDimension?: {
width: number
height: number
}
}) {
const uniqueId = React.useId()
const chartId = `chart-${id ?? uniqueId.replace(/:/g, "")}`
return (
<ChartContext.Provider value={{ config }}>
<div
data-slot="chart"
data-chart={chartId}
className={cn(
"flex aspect-video justify-center text-xs [&_.recharts-cartesian-axis-tick_text]:fill-muted-foreground [&_.recharts-cartesian-grid_line[stroke='#ccc']]:stroke-border/50 [&_.recharts-curve.recharts-tooltip-cursor]:stroke-border [&_.recharts-dot[stroke='#fff']]:stroke-transparent [&_.recharts-layer]:outline-hidden [&_.recharts-polar-grid_[stroke='#ccc']]:stroke-border [&_.recharts-radial-bar-background-sector]:fill-muted [&_.recharts-rectangle.recharts-tooltip-cursor]:fill-muted [&_.recharts-reference-line_[stroke='#ccc']]:stroke-border [&_.recharts-sector]:outline-hidden [&_.recharts-sector[stroke='#fff']]:stroke-transparent [&_.recharts-surface]:outline-hidden",
className
)}
{...props}
>
<ChartStyle id={chartId} config={config} />
<RechartsPrimitive.ResponsiveContainer
initialDimension={initialDimension}
>
{children}
</RechartsPrimitive.ResponsiveContainer>
</div>
</ChartContext.Provider>
)
}
const ChartStyle = ({ id, config }: { id: string; config: ChartConfig }) => {
const colorConfig = Object.entries(config).filter(
([, config]) => config.theme ?? config.color
)
if (!colorConfig.length) {
return null
}
return (
<style
dangerouslySetInnerHTML={{
__html: Object.entries(THEMES)
.map(
([theme, prefix]) => `
${prefix} [data-chart=${id}] {
${colorConfig
.map(([key, itemConfig]) => {
const color =
itemConfig.theme?.[theme as keyof typeof itemConfig.theme] ??
itemConfig.color
return color ? ` --color-${key}: ${color};` : null
})
.join("\n")}
}
`
)
.join("\n"),
}}
/>
)
}
const ChartTooltip = RechartsPrimitive.Tooltip
function ChartTooltipContent({
active,
payload,
className,
indicator = "dot",
hideLabel = false,
hideIndicator = false,
label,
labelFormatter,
labelClassName,
formatter,
color,
nameKey,
labelKey,
}: React.ComponentProps<typeof RechartsPrimitive.Tooltip> &
React.ComponentProps<"div"> & {
hideLabel?: boolean
hideIndicator?: boolean
indicator?: "line" | "dot" | "dashed"
nameKey?: string
labelKey?: string
} & Omit<
RechartsPrimitive.DefaultTooltipContentProps<
TooltipValueType,
TooltipNameType
>,
"accessibilityLayer"
>) {
const { config } = useChart()
const tooltipLabel = React.useMemo(() => {
if (hideLabel || !payload?.length) {
return null
}
const [item] = payload
const key = `${labelKey ?? item?.dataKey ?? item?.name ?? "value"}`
const itemConfig = getPayloadConfigFromPayload(config, item, key)
const value =
!labelKey && typeof label === "string"
? (config[label]?.label ?? label)
: itemConfig?.label
if (labelFormatter) {
return (
<div className={cn("font-medium", labelClassName)}>
{labelFormatter(value, payload)}
</div>
)
}
if (!value) {
return null
}
return <div className={cn("font-medium", labelClassName)}>{value}</div>
}, [
label,
labelFormatter,
payload,
hideLabel,
labelClassName,
config,
labelKey,
])
if (!active || !payload?.length) {
return null
}
const nestLabel = payload.length === 1 && indicator !== "dot"
return (
<div
className={cn(
"grid min-w-32 items-start gap-1.5 rounded-lg border border-border/50 bg-background px-2.5 py-1.5 text-xs shadow-xl",
className
)}
>
{!nestLabel ? tooltipLabel : null}
<div className="grid gap-1.5">
{payload
.filter((item) => item.type !== "none")
.map((item, index) => {
const key = `${nameKey ?? item.name ?? item.dataKey ?? "value"}`
const itemConfig = getPayloadConfigFromPayload(config, item, key)
const indicatorColor = color ?? item.payload?.fill ?? item.color
return (
<div
key={index}
className={cn(
"flex w-full flex-wrap items-stretch gap-2 [&>svg]:h-2.5 [&>svg]:w-2.5 [&>svg]:text-muted-foreground",
indicator === "dot" && "items-center"
)}
>
{formatter && item?.value !== undefined && item.name ? (
formatter(item.value, item.name, item, index, item.payload)
) : (
<>
{itemConfig?.icon ? (
<itemConfig.icon />
) : (
!hideIndicator && (
<div
className={cn(
"shrink-0 rounded-[2px] border-(--color-border) bg-(--color-bg)",
{
"h-2.5 w-2.5": indicator === "dot",
"w-1": indicator === "line",
"w-0 border-[1.5px] border-dashed bg-transparent":
indicator === "dashed",
"my-0.5": nestLabel && indicator === "dashed",
}
)}
style={
{
"--color-bg": indicatorColor,
"--color-border": indicatorColor,
} as React.CSSProperties
}
/>
)
)}
<div
className={cn(
"flex flex-1 justify-between leading-none",
nestLabel ? "items-end" : "items-center"
)}
>
<div className="grid gap-1.5">
{nestLabel ? tooltipLabel : null}
<span className="text-muted-foreground">
{itemConfig?.label ?? item.name}
</span>
</div>
{item.value != null && (
<span className="font-mono font-medium text-foreground tabular-nums">
{typeof item.value === "number"
? item.value.toLocaleString()
: String(item.value)}
</span>
)}
</div>
</>
)}
</div>
)
})}
</div>
</div>
)
}
const ChartLegend = RechartsPrimitive.Legend
function ChartLegendContent({
className,
hideIcon = false,
payload,
verticalAlign = "bottom",
nameKey,
}: React.ComponentProps<"div"> & {
hideIcon?: boolean
nameKey?: string
} & RechartsPrimitive.DefaultLegendContentProps) {
const { config } = useChart()
if (!payload?.length) {
return null
}
return (
<div
className={cn(
"flex items-center justify-center gap-4",
verticalAlign === "top" ? "pb-3" : "pt-3",
className
)}
>
{payload
.filter((item) => item.type !== "none")
.map((item, index) => {
const key = `${nameKey ?? item.dataKey ?? "value"}`
const itemConfig = getPayloadConfigFromPayload(config, item, key)
return (
<div
key={index}
className={cn(
"flex items-center gap-1.5 [&>svg]:h-3 [&>svg]:w-3 [&>svg]:text-muted-foreground"
)}
>
{itemConfig?.icon && !hideIcon ? (
<itemConfig.icon />
) : (
<div
className="h-2 w-2 shrink-0 rounded-[2px]"
style={{
backgroundColor: item.color,
}}
/>
)}
{itemConfig?.label}
</div>
)
})}
</div>
)
}
function getPayloadConfigFromPayload(
config: ChartConfig,
payload: unknown,
key: string
) {
if (typeof payload !== "object" || payload === null) {
return undefined
}
const payloadPayload =
"payload" in payload &&
typeof payload.payload === "object" &&
payload.payload !== null
? payload.payload
: undefined
let configLabelKey: string = key
if (
key in payload &&
typeof payload[key as keyof typeof payload] === "string"
) {
configLabelKey = payload[key as keyof typeof payload] as string
} else if (
payloadPayload &&
key in payloadPayload &&
typeof payloadPayload[key as keyof typeof payloadPayload] === "string"
) {
configLabelKey = payloadPayload[
key as keyof typeof payloadPayload
] as string
}
return configLabelKey in config ? config[configLabelKey] : config[key]
}
export {
ChartContainer,
ChartTooltip,
ChartTooltipContent,
ChartLegend,
ChartLegendContent,
ChartStyle,
}