File size: 2,901 Bytes
1e92f2d | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 | import { useEffect } from 'react';
import { ChartData, setChartData, setComputedData } from '../state/chartDataSlice';
import { useAppDispatch, useAppSelector } from '../state/hooks';
import { RechartsRootState } from '../state/store';
import { BrushStartEndIndex } from './brushUpdateContext';
import { useIsPanorama } from './PanoramaContext';
export const ChartDataContextProvider = (props: { chartData: ChartData | undefined }): null => {
const { chartData } = props;
const dispatch = useAppDispatch();
const isPanorama = useIsPanorama();
useEffect(() => {
if (isPanorama) {
// Panorama mode reuses data from the main chart, so we must not overwrite it here.
return () => {
// there is nothing to clean up
};
}
dispatch(setChartData(chartData));
return () => {
dispatch(setChartData(undefined));
};
}, [chartData, dispatch, isPanorama]);
return null;
};
export const SetComputedData = (props: { computedData: any }): null => {
const { computedData } = props;
const dispatch = useAppDispatch();
useEffect(() => {
dispatch(setComputedData(computedData));
return () => {
dispatch(setChartData(undefined));
};
}, [computedData, dispatch]);
return null;
};
const selectChartData = (state: RechartsRootState): ChartData | undefined => state.chartData.chartData;
/**
* "data" is the data of the chart - it has no type because this part of recharts is very flexible.
* Basically it's an array of "something" and then there's the dataKey property in various places
* that's meant to pull other things away from the data.
*
* Some charts have `data` defined on the chart root, and they will return the array through this hook.
* For example: <ComposedChart data={data} />.
*
* Other charts, such as Pie, have data defined on individual graphical elements.
* These charts will return `undefined` through this hook, and you need to read the data from children.
* For example: <PieChart><Pie data={data} />
*
* Some charts also allow setting both - data on the parent, and data on the children at the same time!
* However, this particular selector will only return the ones defined on the parent.
*
* @deprecated use one of the other selectors instead - which one, depends on how do you identify the applicable graphical items.
*
* @return data array for some charts and undefined for other
*/
export const useChartData = (): ChartData | undefined => useAppSelector(selectChartData);
const selectDataIndex = (state: RechartsRootState): BrushStartEndIndex => {
const { dataStartIndex, dataEndIndex } = state.chartData;
return { startIndex: dataStartIndex, endIndex: dataEndIndex };
};
/**
* startIndex and endIndex are data boundaries, set through Brush.
*
* @return object with startIndex and endIndex
*/
export const useDataIndex = () => {
return useAppSelector(selectDataIndex);
};
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