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import { max as d3Max } from 'd3-array';
import { select as d3Select } from 'd3-selection';
import { Axis as D3Axis } from 'd3-axis';
import { scaleBand as d3ScaleBand, scaleLinear as d3ScaleLinear } from 'd3-scale';
import { classNamesFunction, getId, getRTL, memoizeFunction, warnDeprecations } from '@fluentui/react/lib/Utilities';
import { IProcessedStyleSet, IPalette } from '@fluentui/react/lib/Styling';
import { DirectionalHint } from '@fluentui/react/lib/Callout';
import { FocusZoneDirection } from '@fluentui/react-focus';
import {
ChartTypes,
IAxisData,
getAccessibleDataObject,
tooltipOfXAxislabels,
XAxisTypes,
getTypeOfAxis,
formatValueWithSIPrefix,
getScalePadding,
getBarWidth,
isScalePaddingDefined,
} from '../../utilities/index';
import {
IAccessibilityProps,
CartesianChart,
ILegend,
IGroupedVerticalBarChartData,
IGroupedVerticalBarChartProps,
IGroupedVerticalBarChartStyleProps,
IGroupedVerticalBarChartStyles,
IGVBarChartSeriesPoint,
IMargins,
IBasestate,
IRefArrayData,
Legends,
} from '../../index';
const COMPONENT_NAME = 'GROUPED VERTICAL BAR CHART';
const getClassNames = classNamesFunction<IGroupedVerticalBarChartStyleProps, IGroupedVerticalBarChartStyles>();
type StringAxis = D3Axis<string>;
type NumericAxis = D3Axis<number | { valueOf(): number }>;
const MIN_DOMAIN_MARGIN = 8;
const X1_INNER_PADDING = 0.1;
// x1_inner_padding = space_between_bars / (space_between_bars + bar_width)
// => space_between_bars = (x1_inner_padding / (1 - x1_inner_padding)) * bar_width
/** Rate at which the space between the bars in a group changes wrt the bar width */
const BAR_GAP_RATE = X1_INNER_PADDING / (1 - X1_INNER_PADDING);
// This interface used for - While forming datapoints from given prop "data" in code
interface IGVDataPoint {
[key: string]: number | string;
}
// While forming datapoints from given prop "data" in code. These datapoints are used for to draw graph easily.
interface IGVSingleDataPoint {
[key: string]: IGVDataPoint;
}
export interface IGroupedVerticalBarChartState extends IBasestate {
dataPointCalloutProps?: IGVBarChartSeriesPoint;
callOutAccessibilityData?: IAccessibilityProps;
calloutLegend: string;
}
export class GroupedVerticalBarChartBase extends React.Component<
IGroupedVerticalBarChartProps,
IGroupedVerticalBarChartState
> {
public static defaultProps: Partial<IGroupedVerticalBarChartProps> = {
maxBarWidth: 24,
};
private _createSet: (
data: IGroupedVerticalBarChartData[],
) => // eslint-disable-next-line @typescript-eslint/no-explicit-any
{ keys: string[]; xAxisLabels: string[]; datasetForBars: any };
private _dataset: IGVDataPoint[];
private _keys: string[];
private _xAxisLabels: string[];
// eslint-disable-next-line @typescript-eslint/no-explicit-any
private _datasetForBars: any;
private margins: IMargins;
private _groupedVerticalBarGraph: JSX.Element[];
private _classNames: IProcessedStyleSet<IGroupedVerticalBarChartStyles>;
private _refArray: IRefArrayData[];
private _yMax: number;
private _calloutId: string;
private _tooltipId: string;
private _xAxisType: XAxisTypes;
private _isRtl: boolean = getRTL();
private _calloutAnchorPoint: IGVBarChartSeriesPoint | null;
private _barWidth: number;
private _domainMargin: number;
private _emptyChartId: string;
private _groupWidth: number;
private _xAxisInnerPadding: number;
private _xAxisOuterPadding: number;
public constructor(props: IGroupedVerticalBarChartProps) {
super(props);
this._createSet = memoizeFunction((data: IGroupedVerticalBarChartData[]) => this._createDataSetOfGVBC(data));
this.state = {
color: '',
dataForHoverCard: 0,
isCalloutVisible: false,
refSelected: null,
selectedLegend: '',
xCalloutValue: '',
yCalloutValue: '',
YValueHover: [],
hoverXValue: '',
calloutLegend: '',
activeLegend: '',
};
warnDeprecations(COMPONENT_NAME, props, {
showYAxisGridLines: 'Dont use this property. Lines are drawn by default',
showXAxisPath: 'Dont use this property. Axis line removed default.',
showYAxisPath: 'Dont use this property. No need to display Y axis path. Handling default',
showXAxisGridLines: 'Dont use this property. Handling with default value.',
legendColor: 'Dont use this property. colour will pick from given data.',
});
this._refArray = [];
this._calloutId = getId('callout');
this._tooltipId = getId('GVBCTooltipId_');
this._emptyChartId = getId('_GVBC_empty');
}
public render(): React.ReactNode {
const points = this.props.data;
const { keys, xAxisLabels, datasetForBars } = this._createSet(points);
this._keys = keys;
this._xAxisLabels = xAxisLabels;
this._datasetForBars = datasetForBars;
this._xAxisType = getTypeOfAxis(points[0].name, true) as XAxisTypes;
const legends: JSX.Element = this._getLegendData(points, this.props.theme!.palette);
this._adjustProps();
// eslint-disable-next-line @typescript-eslint/no-explicit-any
const yMax = d3Max(this._dataset, (point: any) => d3Max(this._keys, (key: string) => point[key]));
this._yMax = Math.max(yMax, this.props.yMaxValue || 0);
this._classNames = getClassNames(this.props.styles!, {
theme: this.props.theme!,
href: this.props.href!,
});
const calloutProps = {
target: this.state.refSelected,
isCalloutVisible: this.state.isCalloutVisible,
directionalHint: DirectionalHint.topAutoEdge,
id: `toolTip${this._calloutId}`,
gapSpace: 15,
isBeakVisible: false,
setInitialFocus: true,
color: this.state.color,
Legend: this.state.calloutLegend,
XValue: this.state.xCalloutValue,
YValue: this.state.yCalloutValue ? this.state.yCalloutValue : this.state.dataForHoverCard,
YValueHover: this.state.YValueHover,
hoverXValue: this.state.hoverXValue,
onDismiss: this._closeCallout,
...this.props.calloutProps,
preventDismissOnLostFocus: true,
...getAccessibleDataObject(this.state.callOutAccessibilityData, 'text', false),
};
const tickParams = {
tickValues: this.props.tickValues!,
tickFormat: this.props.tickFormat!,
};
return !this._isChartEmpty() ? (
<CartesianChart
{...this.props}
points={this._datasetForBars}
chartType={ChartTypes.GroupedVerticalBarChart}
calloutProps={calloutProps}
legendBars={legends}
xAxisType={this._xAxisType}
datasetForXAxisDomain={this._xAxisLabels}
tickParams={tickParams}
tickPadding={this.props.tickPadding || 5}
maxOfYVal={this._yMax}
svgFocusZoneProps={{
direction: FocusZoneDirection.horizontal,
}}
customizedCallout={this._getCustomizedCallout()}
getmargins={this._getMargins}
getGraphData={this._getGraphData}
getAxisData={this._getAxisData}
onChartMouseLeave={this._handleChartMouseLeave}
getDomainMargins={this._getDomainMargins}
{...(this._xAxisType === XAxisTypes.StringAxis && {
xAxisInnerPadding: this._xAxisInnerPadding,
xAxisOuterPadding: this._xAxisOuterPadding,
})}
barwidth={this._barWidth}
/* eslint-disable react/jsx-no-bind */
// eslint-disable-next-line react/no-children-prop
children={() => {
return <g>{this._groupedVerticalBarGraph}</g>;
}}
/>
) : (
<div
id={this._emptyChartId}
role={'alert'}
style={{ opacity: '0' }}
aria-label={'Graph has no data to display'}
/>
);
}
private _getGraphData = (
xScale: StringAxis | NumericAxis,
yScale: NumericAxis,
containerHeight: number,
containerWidth: number,
xElement?: SVGElement | null,
) => {
const xScale0 = this._createX0Scale(containerWidth);
// Setting the bar width here is safe because there are no dependencies earlier in the code
// that rely on the width of bars in vertical bar charts with string x-axis.
this._barWidth = getBarWidth(
this.props.barwidth,
this.props.maxBarWidth,
xScale0.bandwidth() / (this._keys.length + (this._keys.length - 1) * BAR_GAP_RATE),
);
this._groupWidth = (this._keys.length + (this._keys.length - 1) * BAR_GAP_RATE) * this._barWidth;
const xScale1 = this._createX1Scale();
const allGroupsBars: JSX.Element[] = [];
this._datasetForBars.forEach((singleSet: IGVSingleDataPoint) => {
allGroupsBars.push(this._buildGraph(singleSet, xScale0, xScale1, containerHeight, xElement!));
});
this._groupedVerticalBarGraph = allGroupsBars;
};
private _getMargins = (margins: IMargins) => (this.margins = margins);
private _createDataSetOfGVBC = (points: IGroupedVerticalBarChartData[]) => {
const keys: string[] = [];
const xAxisLabels: string[] = points.map(singlePoint => singlePoint.name);
points[0].series.forEach((singleKey: IGVBarChartSeriesPoint) => {
keys.push(singleKey.key);
});
const datasetForBars = this._createDataset(points);
return {
keys,
xAxisLabels,
datasetForBars,
};
};
private _getCustomizedCallout = () => {
return this.props.onRenderCalloutPerDataPoint
? this.props.onRenderCalloutPerDataPoint(this.state.dataPointCalloutProps)
: null;
};
private _getOpacity = (legendTitle: string): string => {
const opacity = this._legendHighlighted(legendTitle) || this._noLegendHighlighted() ? '' : '0.1';
return opacity;
};
private _onBarHover = (
pointData: IGVBarChartSeriesPoint,
// eslint-disable-next-line @typescript-eslint/no-explicit-any
groupData: any,
mouseEvent: React.MouseEvent<SVGElement>,
): void => {
mouseEvent.persist();
if (this._calloutAnchorPoint !== pointData) {
this._calloutAnchorPoint = pointData;
this.setState({
refSelected: mouseEvent,
/** Show the callout if highlighted bar is hovered and Hide it if unhighlighted bar is hovered */
isCalloutVisible: this.state.selectedLegend === '' || this.state.selectedLegend === pointData.legend,
calloutLegend: pointData.legend,
dataForHoverCard: pointData.data,
color: pointData.color,
xCalloutValue: pointData.xAxisCalloutData,
yCalloutValue: pointData.yAxisCalloutData,
dataPointCalloutProps: pointData,
callOutAccessibilityData: this.props.isCalloutForStack
? groupData.stackCallOutAccessibilityData
: pointData.callOutAccessibilityData,
YValueHover: groupData.groupSeries,
hoverXValue: pointData.xAxisCalloutData,
});
}
};
private _onBarLeave = (): void => {
/**/
};
private _handleChartMouseLeave = (): void => {
this._calloutAnchorPoint = null;
this.setState({ isCalloutVisible: false });
};
private _onBarFocus = (
pointData: IGVBarChartSeriesPoint,
// eslint-disable-next-line @typescript-eslint/no-explicit-any
groupData: any,
refArrayIndexNumber: number,
): void => {
this._refArray.forEach((obj: IRefArrayData, index: number) => {
Iif (obj.index === pointData.legend && refArrayIndexNumber === index) {
this.setState({
refSelected: obj.refElement,
/** Show the callout if highlighted bar is focused and Hide it if unhighlighted bar is focused */
isCalloutVisible: this.state.selectedLegend === '' || this.state.selectedLegend === pointData.legend,
calloutLegend: pointData.legend,
dataForHoverCard: pointData.data,
color: pointData.color,
xCalloutValue: pointData.xAxisCalloutData,
yCalloutValue: pointData.yAxisCalloutData,
dataPointCalloutProps: pointData,
callOutAccessibilityData: this.props.isCalloutForStack
? groupData.stackCallOutAccessibilityData
: pointData.callOutAccessibilityData,
YValueHover: groupData.groupSeries,
hoverXValue: pointData.xAxisCalloutData,
});
}
});
};
private _redirectToUrl = (href: string | undefined): void => {
href ? (window.location.href = href) : '';
};
private _refCallback(element: SVGRectElement, legendTitle: string, refIndexNumber: number): void {
this._refArray[refIndexNumber] = { index: legendTitle, refElement: element };
}
private _buildGraph = (
// eslint-disable-next-line @typescript-eslint/no-explicit-any
singleSet: any,
// eslint-disable-next-line @typescript-eslint/no-explicit-any
xScale0: any,
// eslint-disable-next-line @typescript-eslint/no-explicit-any
xScale1: any,
containerHeight: number,
xElement: SVGElement,
): JSX.Element => {
const singleGroup: JSX.Element[] = [];
const barLabelsForGroup: JSX.Element[] = [];
const yBarScale = d3ScaleLinear()
.domain([0, this._yMax])
.range([0, containerHeight! - this.margins.bottom! - this.margins.top!]);
const tempDataSet = Object.keys(this._datasetForBars[0]).splice(0, this._keys.length);
tempDataSet.forEach((datasetKey: string, index: number) => {
const refIndexNumber = singleSet.indexNum * tempDataSet.length + index;
const pointData = singleSet[datasetKey];
// To align the centers of the generated bandwidth and the calculated one when they differ,
// use the following addend.
const xPoint = xScale1(datasetKey) + (xScale1.bandwidth() - this._barWidth) / 2;
const yPoint = Math.max(containerHeight! - this.margins.bottom! - yBarScale(pointData.data), 0);
// Not rendering data with 0.
pointData.data &&
singleGroup.push(
<rect
className={this._classNames.opacityChangeOnHover}
key={`${singleSet.indexNum}-${index}`}
height={Math.max(yBarScale(pointData.data), 0)}
width={this._barWidth}
x={xPoint}
y={yPoint}
data-is-focusable={
!this.props.hideTooltip && (this._legendHighlighted(pointData.legend) || this._noLegendHighlighted())
}
opacity={this._getOpacity(pointData.legend)}
ref={(e: SVGRectElement | null) => {
this._refCallback(e!, pointData.legend, refIndexNumber);
}}
fill={pointData.color}
onMouseOver={this._onBarHover.bind(this, pointData, singleSet)}
onMouseMove={this._onBarHover.bind(this, pointData, singleSet)}
onMouseOut={this._onBarLeave}
onFocus={this._onBarFocus.bind(this, pointData, singleSet, refIndexNumber)}
onBlur={this._onBarLeave}
onClick={this.props.href ? this._redirectToUrl.bind(this, this.props.href!) : pointData.onClick}
aria-label={this._getAriaLabel(pointData, singleSet.xAxisPoint)}
role="img"
/>,
);
if (
pointData.data &&
!this.props.hideLabels &&
this._barWidth >= 16 &&
(this._legendHighlighted(pointData.legend) || this._noLegendHighlighted())
) {
barLabelsForGroup.push(
<text
key={`${singleSet.indexNum}-${index}`}
x={xPoint + this._barWidth / 2}
y={yPoint - 6}
textAnchor="middle"
className={this._classNames.barLabel}
aria-hidden={true}
>
{formatValueWithSIPrefix(pointData.data)}
</text>,
);
}
});
// Used to display tooltip at x axis labels.
if (!this.props.wrapXAxisLables && this.props.showXAxisLablesTooltip) {
const xAxisElement = d3Select(xElement).call(xScale0);
try {
document.getElementById(this._tooltipId) && document.getElementById(this._tooltipId)!.remove();
// eslint-disable-next-line no-empty
} catch (e) {}
const tooltipProps = {
tooltipCls: this._classNames.tooltip!,
id: this._tooltipId,
xAxis: xAxisElement,
};
xAxisElement && tooltipOfXAxislabels(tooltipProps);
}
return (
<g
key={singleSet.indexNum}
transform={`translate(${xScale0(singleSet.xAxisPoint) + (xScale0.bandwidth() - this._groupWidth) / 2}, 0)`}
>
{singleGroup}
{barLabelsForGroup}
</g>
);
};
private _createDataset = (points: IGroupedVerticalBarChartData[]) => {
// eslint-disable-next-line @typescript-eslint/no-explicit-any
const datasetForBars: any = [];
const dataset: IGVDataPoint[] = [];
points.forEach((point: IGroupedVerticalBarChartData, index: number) => {
const singleDatasetPoint: IGVDataPoint = {};
// eslint-disable-next-line @typescript-eslint/no-explicit-any
const singleDatasetPointForBars: any = {};
const singleDataSeries: IGVBarChartSeriesPoint[] = [];
point.series.forEach((seriesPoint: IGVBarChartSeriesPoint) => {
singleDatasetPoint[seriesPoint.key] = seriesPoint.data;
singleDatasetPointForBars[seriesPoint.key] = {
...seriesPoint,
};
singleDataSeries.push(seriesPoint);
});
singleDatasetPointForBars.xAxisPoint = point.name;
singleDatasetPointForBars.indexNum = index;
singleDatasetPointForBars.groupSeries = singleDataSeries;
singleDatasetPointForBars.stackCallOutAccessibilityData = point.stackCallOutAccessibilityData;
datasetForBars.push(singleDatasetPointForBars);
dataset.push(singleDatasetPoint);
});
this._dataset = dataset;
return datasetForBars;
};
// For grouped vertical bar chart, First need to define total scale (from start to end)
// From that need to define scale for single group of bars - done by createX1Scale
private _createX0Scale = (containerWidth: number) => {
const x0Axis = d3ScaleBand()
.domain(this._xAxisLabels)
.range(
this._isRtl
? [containerWidth! - this.margins.right! - this._domainMargin, this.margins.left! + this._domainMargin]
: [this.margins.left! + this._domainMargin, containerWidth! - this.margins.right! - this._domainMargin],
)
.paddingInner(this._xAxisInnerPadding)
.paddingOuter(this._xAxisOuterPadding);
return x0Axis;
};
// eslint-disable-next-line @typescript-eslint/no-explicit-any
private _createX1Scale = (): any => {
return (
d3ScaleBand()
.domain(this._keys)
// When there is only one group, xScale0 adds padding around it,
// causing the bandwidth to become smaller than the actual group width.
// So to render bars in the group correctly, use groupWidth instead of the generated scale bandwidth.
.range(this._isRtl ? [this._groupWidth, 0] : [0, this._groupWidth])
.paddingInner(X1_INNER_PADDING)
);
};
private _closeCallout = () => {
this.setState({
isCalloutVisible: false,
});
};
private _onLegendClick(legendTitle: string): void {
if (this.state.selectedLegend === legendTitle) {
this.setState({
selectedLegend: '',
});
} else {
this.setState({
selectedLegend: legendTitle,
});
}
}
private _onLegendHover(legendTitle: string): void {
this.setState({
activeLegend: legendTitle,
});
}
private _onLegendLeave(): void {
this.setState({
activeLegend: '',
});
}
private _getLegendData = (points: IGroupedVerticalBarChartData[], palette: IPalette): JSX.Element => {
const data = points;
const defaultPalette: string[] = [palette.blueLight, palette.blue, palette.blueMid, palette.red, palette.black];
const actions: ILegend[] = [];
data.forEach((singleChartData: IGroupedVerticalBarChartData) => {
singleChartData.series.forEach((point: IGVBarChartSeriesPoint) => {
const color: string = point.color ? point.color : defaultPalette[Math.floor(Math.random() * 4 + 1)];
const checkSimilarLegends = actions.filter((leg: ILegend) => leg.title === point.legend && leg.color === color);
if (checkSimilarLegends!.length > 0) {
return;
}
const legend: ILegend = {
title: point.legend,
color: color,
action: () => {
this._onLegendClick(point.legend);
},
hoverAction: () => {
this._handleChartMouseLeave();
this._onLegendHover(point.legend);
},
onMouseOutAction: () => {
this._onLegendLeave();
},
};
actions.push(legend);
});
});
return (
<Legends
legends={actions}
overflowProps={this.props.legendsOverflowProps}
enabledWrapLines={this.props.enabledLegendsWrapLines}
focusZonePropsInHoverCard={this.props.focusZonePropsForLegendsInHoverCard}
{...this.props.legendProps}
/>
);
};
private _getAxisData = (yAxisData: IAxisData) => {
if (yAxisData && yAxisData.yAxisDomainValues.length) {
const { yAxisDomainValues: domainValue } = yAxisData;
this._yMax = Math.max(domainValue[domainValue.length - 1], this.props.yMaxValue || 0);
}
};
/**
* This function checks if the given legend is highlighted or not.
* A legend can be highlighted in 2 ways:
* 1. selection: if the user clicks on it
* 2. hovering: if there is no selected legend and the user hovers over it
*/
private _legendHighlighted = (legendTitle: string) => {
return (
this.state.selectedLegend === legendTitle ||
(this.state.selectedLegend === '' && this.state.activeLegend === legendTitle)
);
};
/**
* This function checks if none of the legends is selected or hovered.
*/
private _noLegendHighlighted = () => {
return this.state.selectedLegend === '' && this.state.activeLegend === '';
};
private _getAriaLabel = (point: IGVBarChartSeriesPoint, xAxisPoint: string): string => {
const xValue = point.xAxisCalloutData || xAxisPoint;
const legend = point.legend;
const yValue = point.yAxisCalloutData || point.data;
return point.callOutAccessibilityData?.ariaLabel || `${xValue}. ${legend}, ${yValue}.`;
};
private _getDomainMargins = (containerWidth: number): IMargins => {
this._domainMargin = MIN_DOMAIN_MARGIN;
if (this._xAxisType === XAxisTypes.StringAxis) {
Iif (isScalePaddingDefined(this.props.xAxisOuterPadding)) {
// Setting the domain margin for string x-axis to 0 because the xAxisOuterPadding prop is now available
// to adjust the space before the first group and after the last group.
this._domainMargin = 0;
} else if (this.props.barwidth !== 'auto') {
/** Total width available to render the bars */
const totalWidth =
containerWidth - (this.margins.left! + MIN_DOMAIN_MARGIN) - (this.margins.right! + MIN_DOMAIN_MARGIN);
// Update the bar width so that when CartesianChart rerenders,
// the following calculations don't use the previous bar width.
this._barWidth = getBarWidth(this.props.barwidth, this.props.maxBarWidth);
const groupWidth = (this._keys.length + (this._keys.length - 1) * BAR_GAP_RATE) * this._barWidth;
/** Rate at which the space between the groups changes wrt the group width */
const groupGapRate = this._xAxisInnerPadding / (1 - this._xAxisInnerPadding);
/** Total width required to render the groups. Directly proportional to group width */
const reqWidth = (this._xAxisLabels.length + (this._xAxisLabels.length - 1) * groupGapRate) * groupWidth;
if (totalWidth >= reqWidth) {
// Center align the chart by setting equal left and right margins for domain
this._domainMargin = MIN_DOMAIN_MARGIN + (totalWidth - reqWidth) / 2;
}
}
}
return {
...this.margins,
left: this.margins.left! + this._domainMargin,
right: this.margins.right! + this._domainMargin,
};
};
private _isChartEmpty(): boolean {
return !(
this.props.data &&
this.props.data.length > 0 &&
this.props.data.filter((item: IGroupedVerticalBarChartData) => item.series.length).length > 0
);
}
private _adjustProps(): void {
this._barWidth = getBarWidth(this.props.barwidth, this.props.maxBarWidth);
// x0_inner_padding = space_between_groups / (space_between_groups + group_width)
// space_between_groups = 2 * bar_width
// group_width = this._keys.length * bar_width + (this._keys.length - 1) * space_between_bars
this._xAxisInnerPadding = getScalePadding(
this.props.xAxisInnerPadding,
undefined,
2 / (2 + this._keys.length + (this._keys.length - 1) * BAR_GAP_RATE),
);
this._xAxisOuterPadding = getScalePadding(this.props.xAxisOuterPadding);
}
}
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