[charts] Introduce plugins system

docs/pages/x/api/charts/chart-container.json

@@ -32,6 +32,12 @@
         "describedArgs": ["highlightedItem"]
       }
     },
+    "plugins": {
+      "type": {
+        "name": "arrayOf",
+        "description": "Array&lt;{ colorProcessor: func, seriesFormatter: func, seriesType: 'bar', xExtremumGetter?: func, yExtremumGetter?: func }<br>&#124;&nbsp;{ colorProcessor: func, seriesFormatter: func, seriesType: 'line', xExtremumGetter?: func, yExtremumGetter?: func }<br>&#124;&nbsp;{ colorProcessor: func, seriesFormatter: func, seriesType: 'scatter', xExtremumGetter?: func, yExtremumGetter?: func }<br>&#124;&nbsp;{ colorProcessor: func, seriesFormatter: func, seriesType: 'pie', xExtremumGetter?: func, yExtremumGetter?: func }&gt;"
+      }
+    },
     "xAxis": {
       "type": {
         "name": "arrayOf",

docs/pages/x/api/charts/responsive-chart-container.json

@@ -31,6 +31,12 @@
         "describedArgs": ["highlightedItem"]
       }
     },
+    "plugins": {
+      "type": {
+        "name": "arrayOf",
+        "description": "Array&lt;{ colorProcessor: func, seriesFormatter: func, seriesType: 'bar', xExtremumGetter?: func, yExtremumGetter?: func }<br>&#124;&nbsp;{ colorProcessor: func, seriesFormatter: func, seriesType: 'line', xExtremumGetter?: func, yExtremumGetter?: func }<br>&#124;&nbsp;{ colorProcessor: func, seriesFormatter: func, seriesType: 'scatter', xExtremumGetter?: func, yExtremumGetter?: func }<br>&#124;&nbsp;{ colorProcessor: func, seriesFormatter: func, seriesType: 'pie', xExtremumGetter?: func, yExtremumGetter?: func }&gt;"
+      }
+    },
     "width": { "type": { "name": "number" } },
     "xAxis": {
       "type": {

docs/translations/api-docs/charts/chart-container/chart-container.json

@@ -19,6 +19,9 @@
       "description": "The callback fired when the highlighted item changes.",
       "typeDescriptions": { "highlightedItem": "The newly highlighted item." }
     },
+    "plugins": {
+      "description": "An array of plugins defining how to preprocess data. If not provided, the container supports line, bar, scatter and pie charts."
+    },
     "series": {
       "description": "The array of series to display. Each type of series has its own specificity. Please refer to the appropriate docs page to learn more about it."
     },

docs/translations/api-docs/charts/responsive-chart-container/responsive-chart-container.json

@@ -21,6 +21,9 @@
       "description": "The callback fired when the highlighted item changes.",
       "typeDescriptions": { "highlightedItem": "The newly highlighted item." }
     },
+    "plugins": {
+      "description": "An array of plugins defining how to preprocess data. If not provided, the container supports line, bar, scatter and pie charts."
+    },
     "series": {
       "description": "The array of series to display. Each type of series has its own specificity. Please refer to the appropriate docs page to learn more about it."
     },

packages/x-charts/src/BarChart/BarChart.tsx

@@ -51,7 +51,7 @@ export interface BarChartSlotProps
     ChartsOverlaySlotProps {}
 
 export interface BarChartProps
-  extends Omit<ResponsiveChartContainerProps, 'series'>,
+  extends Omit<ResponsiveChartContainerProps, 'series' | 'plugins'>,
     Omit<ChartsAxisProps, 'slots' | 'slotProps'>,
     Omit<BarPlotProps, 'slots' | 'slotProps'>,
     Omit<ChartsOverlayProps, 'slots' | 'slotProps'>,

packages/x-charts/src/BarChart/formatter.ts

@@ -6,7 +6,7 @@ import {
   DatasetType,
   Formatter,
 } from '../models/seriesType/config';
-import defaultizeValueFormatter from '../internals/defaultizeValueFormatter';
+import { defaultizeValueFormatter } from '../internals/defaultizeValueFormatter';
 import { DefaultizedProps } from '../models/helpers';
 import { SeriesId } from '../models/seriesType/common';
 

packages/x-charts/src/BarChart/getColor.ts

@@ -3,14 +3,14 @@ import { DefaultizedBarSeriesType } from '../models/seriesType/bar';
 
 export default function getColor(
   series: DefaultizedBarSeriesType,
-  xAxis: AxisDefaultized,
-  yAxis: AxisDefaultized,
+  xAxis?: AxisDefaultized,
+  yAxis?: AxisDefaultized,
 ) {
   const verticalLayout = series.layout === 'vertical';
 
-  const bandColorScale = verticalLayout ? xAxis.colorScale : yAxis.colorScale;
-  const valueColorScale = verticalLayout ? yAxis.colorScale : xAxis.colorScale;
-  const bandValues = verticalLayout ? xAxis.data! : yAxis.data!;
+  const bandColorScale = verticalLayout ? xAxis?.colorScale : yAxis?.colorScale;
+  const valueColorScale = verticalLayout ? yAxis?.colorScale : xAxis?.colorScale;
+  const bandValues = verticalLayout ? xAxis?.data : yAxis?.data;
 
   if (valueColorScale) {
     return (dataIndex: number) => {
@@ -22,7 +22,7 @@ export default function getColor(
       return color;
     };
   }
-  if (bandColorScale) {
+  if (bandColorScale && bandValues) {
     return (dataIndex: number) => {
       const value = bandValues[dataIndex];
       const color = value === null ? series.color : bandColorScale(value);

packages/x-charts/src/BarChart/plugin.ts

@@ -0,0 +1,12 @@
+import { ChartsPluginType } from '../models/plugin';
+import { getExtremumX, getExtremumY } from './extremums';
+import formatter from './formatter';
+import getColor from './getColor';
+
+export const plugin: ChartsPluginType<'bar'> = {
+  seriesType: 'bar',
+  seriesFormatter: formatter,
+  colorProcessor: getColor,
+  xExtremumGetter: getExtremumX,
+  yExtremumGetter: getExtremumY,
+};

packages/x-charts/src/ChartContainer/ChartContainer.tsx

@@ -15,16 +15,24 @@ import {
 } from '../context/CartesianContextProvider';
 import { ChartsAxesGradients } from '../internals/components/ChartsAxesGradients';
 import { HighlightedProvider, HighlightedProviderProps } from '../context';
+import { ChartsPluginTypes } from '../models/plugin';
+import { ChartSeriesType } from '../models/seriesType/config';
+import { usePluginsMerge } from './usePluginsMerge';
 
-export type ChartContainerProps = Omit<
+export type ChartContainerProps<T extends ChartSeriesType = ChartSeriesType> = Omit<
   ChartsSurfaceProps &
-    SeriesContextProviderProps &
+    Omit<SeriesContextProviderProps, 'seriesFormatters'> &
     Omit<DrawingProviderProps, 'svgRef'> &
-    CartesianContextProviderProps &
+    Omit<CartesianContextProviderProps, 'xExtremumGetters' | 'yExtremumGetters'> &
     HighlightedProviderProps,
   'children'
 > & {
   children?: React.ReactNode;
+  /**
+   * An array of plugins defining how to preprocess data.
+   * If not provided, the container supports line, bar, scatter and pie charts.
+   */
+  plugins?: ChartsPluginTypes<T>[];
 };
 
 const ChartContainer = React.forwardRef(function ChartContainer(props: ChartContainerProps, ref) {
@@ -43,16 +51,23 @@ const ChartContainer = React.forwardRef(function ChartContainer(props: ChartCont
     disableAxisListener,
     highlightedItem,
     onHighlightChange,
+    plugins,
     children,
   } = props;
   const svgRef = React.useRef<SVGSVGElement>(null);
   const handleRef = useForkRef(ref, svgRef);
 
+  const { seriesFormatters } = usePluginsMerge(plugins);
   useReducedMotion(); // a11y reduce motion (see: https://react-spring.dev/docs/utilities/use-reduced-motion)
 
   return (
     <DrawingProvider width={width} height={height} margin={margin} svgRef={svgRef}>
-      <SeriesContextProvider series={series} colors={colors} dataset={dataset}>
+      <SeriesContextProvider
+        series={series}
+        colors={colors}
+        dataset={dataset}
+        seriesFormatters={seriesFormatters}
+      >
         <CartesianContextProvider xAxis={xAxis} yAxis={yAxis} dataset={dataset}>
           <InteractionProvider>
             <HighlightedProvider
@@ -131,6 +146,42 @@ ChartContainer.propTypes = {
    * @param {HighlightItemData | null} highlightedItem  The newly highlighted item.
    */
   onHighlightChange: PropTypes.func,
+  /**
+   * An array of plugins defining how to preprocess data.
+   * If not provided, the container supports line, bar, scatter and pie charts.
+   */
+  plugins: PropTypes.arrayOf(
+    PropTypes.oneOfType([
+      PropTypes.shape({
+        colorProcessor: PropTypes.func.isRequired,
+        seriesFormatter: PropTypes.func.isRequired,
+        seriesType: PropTypes.oneOf(['bar']).isRequired,
+        xExtremumGetter: PropTypes.func,
+        yExtremumGetter: PropTypes.func,
+      }),
+      PropTypes.shape({
+        colorProcessor: PropTypes.func.isRequired,
+        seriesFormatter: PropTypes.func.isRequired,
+        seriesType: PropTypes.oneOf(['line']).isRequired,
+        xExtremumGetter: PropTypes.func,
+        yExtremumGetter: PropTypes.func,
+      }),
+      PropTypes.shape({
+        colorProcessor: PropTypes.func.isRequired,
+        seriesFormatter: PropTypes.func.isRequired,
+        seriesType: PropTypes.oneOf(['scatter']).isRequired,
+        xExtremumGetter: PropTypes.func,
+        yExtremumGetter: PropTypes.func,
+      }),
+      PropTypes.shape({
+        colorProcessor: PropTypes.func.isRequired,
+        seriesFormatter: PropTypes.func.isRequired,
+        seriesType: PropTypes.oneOf(['pie']).isRequired,
+        xExtremumGetter: PropTypes.func,
+        yExtremumGetter: PropTypes.func,
+      }),
+    ]).isRequired,
+  ),
   /**
    * The array of series to display.
    * Each type of series has its own specificity.

packages/x-charts/src/ChartContainer/defaultPlugins.ts

@@ -0,0 +1,6 @@
+import { plugin as barPlugin } from '../BarChart/plugin';
+import { plugin as scatterPlugin } from '../ScatterChart/plugin';
+import { plugin as linePlugin } from '../LineChart/plugin';
+import { plugin as piePlugin } from '../PieChart/plugin';
+
+export const defaultPlugins = [barPlugin, scatterPlugin, linePlugin, piePlugin];

packages/x-charts/src/ChartContainer/usePluginsMerge.ts

@@ -0,0 +1,41 @@
+import * as React from 'react';
+import { ChartsPluginTypes, ColorProcessorsConfig } from '../models';
+import { ChartSeriesType } from '../models/seriesType/config';
+import { ExtremumGettersConfig } from '../context/CartesianContextProvider';
+import { SeriesFormatterConfig } from '../context/SeriesContextProvider';
+import { defaultPlugins } from './defaultPlugins';
+
+export function usePluginsMerge<T extends ChartSeriesType>(plugins?: ChartsPluginTypes<T>[]) {
+  const defaultizedPlugins = plugins ?? defaultPlugins;
+
+  return React.useMemo(() => {
+    const seriesFormatters: SeriesFormatterConfig<ChartSeriesType> = {};
+    const colorProcessors: ColorProcessorsConfig<ChartSeriesType> = {};
+    const xExtremumGetters: ExtremumGettersConfig<ChartSeriesType> = {};
+    const yExtremumGetters: ExtremumGettersConfig<ChartSeriesType> = {};
+
+    for (let i = 0; i < defaultizedPlugins.length; i += 1) {
+      const plugin = defaultizedPlugins[i];
+
+      // To remove those any we will need to solve this union discrimination issue:
+      // https://www.typescriptlang.org/play/?#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-pvftqLkWOUS2141chBLYABJDimuB4HBKxtiWBiVA4RAHXU4FWwSSwTkHAAqxlgiBYmFcYhYAusbrGq5vtepGFX6YPTHo0GYnjrpbp5ZVrYJZ6EAA
+      seriesFormatters[plugin.seriesType] = plugin.seriesFormatter as any;
+
+      colorProcessors[plugin.seriesType] = plugin.colorProcessor as any;
+
+      if (plugin.xExtremumGetter) {
+        xExtremumGetters[plugin.seriesType] = plugin.xExtremumGetter as any;
+      }
+
+      if (plugin.yExtremumGetter) {
+        yExtremumGetters[plugin.seriesType] = plugin.yExtremumGetter as any;
+      }
+    }
+    return {
+      seriesFormatters,
+      colorProcessors,
+      xExtremumGetters,
+      yExtremumGetters,
+    };
+  }, [defaultizedPlugins]);
+}

packages/x-charts/src/LineChart/LineChart.tsx

@@ -64,7 +64,7 @@ export interface LineChartSlotProps
     ChartsOverlaySlotProps {}
 
 export interface LineChartProps
-  extends Omit<ResponsiveChartContainerProps, 'series'>,
+  extends Omit<ResponsiveChartContainerProps, 'series' | 'plugins'>,
     Omit<ChartsAxisProps, 'slots' | 'slotProps'>,
     Omit<ChartsOverlayProps, 'slots' | 'slotProps'>,
     ChartsOnAxisClickHandlerProps {

packages/x-charts/src/LineChart/formatter.ts

@@ -6,7 +6,7 @@ import {
   DatasetType,
   Formatter,
 } from '../models/seriesType/config';
-import defaultizeValueFormatter from '../internals/defaultizeValueFormatter';
+import { defaultizeValueFormatter } from '../internals/defaultizeValueFormatter';
 import { DefaultizedProps } from '../models/helpers';
 import { SeriesId } from '../models/seriesType/common';
 

packages/x-charts/src/LineChart/getColor.ts

@@ -3,11 +3,11 @@ import { DefaultizedLineSeriesType } from '../models/seriesType/line';
 
 export default function getColor(
   series: DefaultizedLineSeriesType,
-  xAxis: AxisDefaultized,
-  yAxis: AxisDefaultized,
+  xAxis?: AxisDefaultized,
+  yAxis?: AxisDefaultized,
 ) {
-  const yColorScale = yAxis.colorScale;
-  const xColorScale = xAxis.colorScale;
+  const yColorScale = yAxis?.colorScale;
+  const xColorScale = xAxis?.colorScale;
 
   if (yColorScale) {
     return (dataIndex: number) => {

packages/x-charts/src/LineChart/plugin.ts

@@ -0,0 +1,12 @@
+import { ChartsPluginType } from '../models/plugin';
+import { getExtremumX, getExtremumY } from './extremums';
+import formatter from './formatter';
+import getColor from './getColor';
+
+export const plugin: ChartsPluginType<'line'> = {
+  seriesType: 'line',
+  colorProcessor: getColor,
+  seriesFormatter: formatter,
+  xExtremumGetter: getExtremumX,
+  yExtremumGetter: getExtremumY,
+};

packages/x-charts/src/PieChart/PieChart.tsx

@@ -52,7 +52,7 @@ export interface PieChartSlotProps
     ChartsOverlaySlotProps {}
 
 export interface PieChartProps
-  extends Omit<ResponsiveChartContainerProps, 'series' | 'leftAxis' | 'bottomAxis'>,
+  extends Omit<ResponsiveChartContainerProps, 'series' | 'leftAxis' | 'bottomAxis' | 'plugins'>,
     Omit<ChartsAxisProps, 'slots' | 'slotProps'>,
     Omit<ChartsOverlayProps, 'slots' | 'slotProps'>,
     Pick<PiePlotProps, 'skipAnimation'> {

packages/x-charts/src/PieChart/plugin.ts

@@ -0,0 +1,9 @@
+import { ChartsPluginType } from '../models/plugin';
+import formatter from './formatter';
+import getColor from './getColor';
+
+export const plugin: ChartsPluginType<'pie'> = {
+  seriesType: 'pie',
+  colorProcessor: getColor,
+  seriesFormatter: formatter,
+};

packages/x-charts/src/ResponsiveChartContainer/ResponsiveChartContainer.tsx

@@ -103,6 +103,42 @@ ResponsiveChartContainer.propTypes = {
    * @param {HighlightItemData | null} highlightedItem  The newly highlighted item.
    */
   onHighlightChange: PropTypes.func,
+  /**
+   * An array of plugins defining how to preprocess data.
+   * If not provided, the container supports line, bar, scatter and pie charts.
+   */
+  plugins: PropTypes.arrayOf(
+    PropTypes.oneOfType([
+      PropTypes.shape({
+        colorProcessor: PropTypes.func.isRequired,
+        seriesFormatter: PropTypes.func.isRequired,
+        seriesType: PropTypes.oneOf(['bar']).isRequired,
+        xExtremumGetter: PropTypes.func,
+        yExtremumGetter: PropTypes.func,
+      }),
+      PropTypes.shape({
+        colorProcessor: PropTypes.func.isRequired,
+        seriesFormatter: PropTypes.func.isRequired,
+        seriesType: PropTypes.oneOf(['line']).isRequired,
+        xExtremumGetter: PropTypes.func,
+        yExtremumGetter: PropTypes.func,
+      }),
+      PropTypes.shape({
+        colorProcessor: PropTypes.func.isRequired,
+        seriesFormatter: PropTypes.func.isRequired,
+        seriesType: PropTypes.oneOf(['scatter']).isRequired,
+        xExtremumGetter: PropTypes.func,
+        yExtremumGetter: PropTypes.func,
+      }),
+      PropTypes.shape({
+        colorProcessor: PropTypes.func.isRequired,
+        seriesFormatter: PropTypes.func.isRequired,
+        seriesType: PropTypes.oneOf(['pie']).isRequired,
+        xExtremumGetter: PropTypes.func,
+        yExtremumGetter: PropTypes.func,
+      }),
+    ]).isRequired,
+  ),
   /**
    * The array of series to display.
    * Each type of series has its own specificity.

packages/x-charts/src/ScatterChart/ScatterChart.tsx

@@ -54,7 +54,7 @@ export interface ScatterChartSlotProps
     ChartsOverlaySlotProps {}
 
 export interface ScatterChartProps
-  extends Omit<ResponsiveChartContainerProps, 'series'>,
+  extends Omit<ResponsiveChartContainerProps, 'series' | 'plugins'>,
     Omit<ZAxisContextProviderProps, 'children' | 'dataset'>,
     Omit<ChartsAxisProps, 'slots' | 'slotProps'>,
     Omit<ChartsOverlayProps, 'slots' | 'slotProps'>,

packages/x-charts/src/ScatterChart/formatter.ts

@@ -1,4 +1,4 @@
-import defaultizeValueFormatter from '../internals/defaultizeValueFormatter';
+import { defaultizeValueFormatter } from '../internals/defaultizeValueFormatter';
 import { Formatter } from '../models/seriesType/config';
 
 const formatter: Formatter<'scatter'> = ({ series, seriesOrder }) => {

packages/x-charts/src/ScatterChart/getColor.ts

@@ -4,13 +4,13 @@ import { DefaultizedScatterSeriesType } from '../models/seriesType/scatter';
 
 export default function getColor(
   series: DefaultizedScatterSeriesType,
-  xAxis: AxisDefaultized,
-  yAxis: AxisDefaultized,
+  xAxis?: AxisDefaultized,
+  yAxis?: AxisDefaultized,
   zAxis?: ZAxisDefaultized,
 ) {
   const zColorScale = zAxis?.colorScale;
-  const yColorScale = yAxis.colorScale;
-  const xColorScale = xAxis.colorScale;
+  const yColorScale = yAxis?.colorScale;
+  const xColorScale = xAxis?.colorScale;
 
   if (zColorScale) {
     return (dataIndex: number) => {