@nova-ui/charts
Version:
Nova Charts is a library created to provide potential consumers with solutions for various data visualizations that conform with the Nova Design Language. It's designed to solve common patterns identified by UX designers, but also be very flexible so that
140 lines • 25.2 kB
JavaScript
// © 2022 SolarWinds Worldwide, LLC. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
import { select } from "d3-selection";
import findIndex from "lodash/findIndex";
import isArray from "lodash/isArray";
import isUndefined from "lodash/isUndefined";
import { DATA_POINT_INTERACTION_RESET, DATA_POINT_NOT_FOUND, } from "../../../constants";
import { isBandScale, } from "../../../core/common/scales/types";
import { UtilityService } from "../../../core/common/utility.service";
import { RenderLayerName, RenderState, } from "../../types";
export class BarHighlightStrategy {
scaleKey;
levels;
selectedDataPointIdxFn;
/**
* @param scaleKey scale that will be used for searching for the data point that will be highlighted
* @param levels for band scales, how many levels deep do we go to compare values
*/
constructor(scaleKey, levels = 1, selectedDataPointIdxFn) {
this.scaleKey = scaleKey;
this.levels = levels;
this.selectedDataPointIdxFn = selectedDataPointIdxFn;
}
getDataPointIndex(renderer, series, values, scales) {
const value = values[this.scaleKey];
if (typeof value === "undefined") {
// if there is no value we're returning -2 (DATA_POINT_INTERACTION_RESET) which helps highlightDataPoint
// to understand that we need to emphasise things when we are moving outside of an interactive area
return DATA_POINT_INTERACTION_RESET;
}
return this.findDataPointByValue(series, value, this.scaleKey, scales);
}
findDataPointByValue(series, value, scaleKey, scales) {
const accessorSuffix = scaleKey.toUpperCase();
const dataAccessors = series.accessors.data;
const startAccessor = dataAccessors["start" + accessorSuffix];
const endAccessor = dataAccessors["end" + accessorSuffix];
if (typeof value === "string") {
return findIndex(series.data, (d, i) => value === startAccessor?.(d, i, series.data, series));
}
if (isArray(value)) {
return findIndex(series.data, (d, i) => {
const start = startAccessor?.(d, i, series.data, series);
const lengthLimit = Math.min(this.levels, value.length, start.length);
// diy efficient array comparison
for (let j = 0; j < lengthLimit; j++) {
if (value[j] !== start[j]) {
return false;
}
}
return true;
});
}
if (value.valueOf) {
const valueOf = value.valueOf();
if (scales && scales[scaleKey]?.isContinuous()) {
let index = findIndex(series.data, (d, i) => valueOf >=
startAccessor?.(d, i, series.data, series).valueOf() &&
valueOf <=
endAccessor?.(d, i, series.data, series).valueOf());
if (index === -1 && typeof endAccessor !== "undefined") {
if (isBandScale(scales[scaleKey])) {
const accessor = (d, i) => startAccessor?.(d, i, series.data, series);
const nearestIndex = UtilityService.findNearestIndex(series.data, value, accessor);
index =
nearestIndex >= series.data.length ||
accessor(series.data[nearestIndex], nearestIndex) >
valueOf
? -1
: nearestIndex;
}
else {
// @ts-ignore
// Needs to catch -1 otherwise typescript errors
index =
UtilityService.getClosestIndex(series.data, (d, i) => endAccessor(d, i, series.data, series), value) ?? -1;
}
}
return index;
}
return findIndex(series.data, (d, i) => valueOf >=
startAccessor?.(d, i, series.data, series).valueOf() &&
valueOf <=
endAccessor?.(d, i, series.data, series).valueOf());
}
return DATA_POINT_INTERACTION_RESET;
}
highlightDataPoint(renderer, renderSeries, dataPointIndex, rendererSubject) {
const target = renderSeries.containers[RenderLayerName.data];
const barStylesFn = renderer.getContainerStateStyles;
const selectedDataPointIdx = !isUndefined(this.selectedDataPointIdxFn)
? this.selectedDataPointIdxFn(renderSeries.dataSeries.id)
: DATA_POINT_NOT_FOUND;
target
.selectAll(`g.${renderer.barContainerClass}`)
.each(function (d, index) {
let renderState;
if (dataPointIndex === DATA_POINT_INTERACTION_RESET) {
if (index === selectedDataPointIdx ||
selectedDataPointIdx === DATA_POINT_NOT_FOUND) {
renderState = RenderState.default;
}
else {
renderState = RenderState.deemphasized;
}
}
else if (dataPointIndex === index ||
index === selectedDataPointIdx) {
renderState = RenderState.emphasized;
}
else {
renderState = RenderState.deemphasized;
}
select(this).attrs(barStylesFn(renderState));
});
// rendererSubject.next({
// eventName: HIGHLIGHT_SERIES_EVENT,
// data: renderer.getDataPoint(renderSeries, renderSeries.dataSeries.data[dataPointIndex], dataPointIndex),
// });
}
draw(renderer, renderSeries, rendererSubject) { }
}
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All rights reserved.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n//  of this software and associated documentation files (the \"Software\"), to\n//  deal in the Software without restriction, including without limitation the\n//  rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n//  sell copies of the Software, and to permit persons to whom the Software is\n//  furnished to do so, subject to the following conditions:\n//\n// The above copyright notice and this permission notice shall be included in\n//  all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n//  THE SOFTWARE.\n\nimport { select } from \"d3-selection\";\nimport findIndex from \"lodash/findIndex\";\nimport isArray from \"lodash/isArray\";\nimport isUndefined from \"lodash/isUndefined\";\nimport { Subject } from \"rxjs\";\n\nimport {\n    DATA_POINT_INTERACTION_RESET,\n    DATA_POINT_NOT_FOUND,\n} from \"../../../constants\";\nimport {\n    isBandScale,\n    IXYScales,\n    Scales,\n} from \"../../../core/common/scales/types\";\nimport { IDataSeries, IRendererEventPayload } from \"../../../core/common/types\";\nimport { UtilityService } from \"../../../core/common/utility.service\";\nimport { IRectangleAccessors } from \"../../accessors/rectangle-accessors\";\nimport {\n    IHighlightStrategy,\n    IRenderSeries,\n    RenderLayerName,\n    RenderState,\n} from \"../../types\";\nimport { BarRenderer } from \"../bar-renderer\";\n\nexport type SelectedDatPointIdxFn = (seriesId: string) => number;\n\nexport class BarHighlightStrategy\n    implements IHighlightStrategy<IRectangleAccessors, BarRenderer>\n{\n    /**\n     * @param scaleKey scale that will be used for searching for the data point that will be highlighted\n     * @param levels for band scales, how many levels deep do we go to compare values\n     */\n    constructor(\n        protected scaleKey: keyof IXYScales,\n        protected levels = 1,\n        protected selectedDataPointIdxFn?: SelectedDatPointIdxFn\n    ) {}\n\n    public getDataPointIndex(\n        renderer: BarRenderer,\n        series: IDataSeries<IRectangleAccessors>,\n        values: { [p: string]: any },\n        scales: Scales\n    ): number {\n        const value = values[this.scaleKey];\n        if (typeof value === \"undefined\") {\n            // if there is no value we're returning -2 (DATA_POINT_INTERACTION_RESET) which helps highlightDataPoint\n            // to understand that we need to emphasise things when we are moving outside of an interactive area\n            return DATA_POINT_INTERACTION_RESET;\n        }\n\n        return this.findDataPointByValue(series, value, this.scaleKey, scales);\n    }\n\n    public findDataPointByValue(\n        series: IDataSeries<IRectangleAccessors>,\n        value: any,\n        scaleKey: keyof IXYScales,\n        scales?: Scales\n    ): number {\n        const accessorSuffix = (scaleKey as string).toUpperCase();\n        const dataAccessors = series.accessors.data;\n\n        const startAccessor = dataAccessors[\"start\" + accessorSuffix];\n        const endAccessor = dataAccessors[\"end\" + accessorSuffix];\n\n        if (typeof value === \"string\") {\n            return findIndex(\n                series.data,\n                (d, i) => value === startAccessor?.(d, i, series.data, series)\n            );\n        }\n        if (isArray(value)) {\n            return findIndex(series.data, (d, i) => {\n                const start = startAccessor?.(d, i, series.data, series);\n                const lengthLimit = Math.min(\n                    this.levels,\n                    value.length,\n                    start.length\n                );\n                // diy efficient array comparison\n                for (let j = 0; j < lengthLimit; j++) {\n                    if (value[j] !== start[j]) {\n                        return false;\n                    }\n                }\n                return true;\n            });\n        }\n        if (value.valueOf) {\n            const valueOf = value.valueOf();\n            if (scales && scales[scaleKey]?.isContinuous()) {\n                let index = findIndex(\n                    series.data,\n                    (d, i) =>\n                        valueOf >=\n                            startAccessor?.(\n                                d,\n                                i,\n                                series.data,\n                                series\n                            ).valueOf() &&\n                        valueOf <=\n                            endAccessor?.(d, i, series.data, series).valueOf()\n                );\n                if (index === -1 && typeof endAccessor !== \"undefined\") {\n                    if (isBandScale(scales[scaleKey])) {\n                        const accessor = (d: any, i: any) =>\n                            startAccessor?.(d, i, series.data, series);\n                        const nearestIndex = UtilityService.findNearestIndex(\n                            series.data,\n                            value,\n                            accessor\n                        );\n                        index =\n                            nearestIndex >= series.data.length ||\n                            accessor(series.data[nearestIndex], nearestIndex) >\n                                valueOf\n                                ? -1\n                                : nearestIndex;\n                    } else {\n                        // @ts-ignore\n                        // Needs to catch -1 otherwise typescript errors\n                        index =\n                            UtilityService.getClosestIndex(\n                                series.data,\n                                (d, i) =>\n                                    endAccessor(d, i, series.data, series),\n                                value\n                            ) ?? -1;\n                    }\n                }\n                return index;\n            }\n            return findIndex(\n                series.data,\n                (d, i) =>\n                    valueOf >=\n                        startAccessor?.(d, i, series.data, series).valueOf() &&\n                    valueOf <=\n                        endAccessor?.(d, i, series.data, series).valueOf()\n            );\n        }\n\n        return DATA_POINT_INTERACTION_RESET;\n    }\n\n    public highlightDataPoint(\n        renderer: BarRenderer,\n        renderSeries: IRenderSeries<IRectangleAccessors>,\n        dataPointIndex: number,\n        rendererSubject: Subject<IRendererEventPayload>\n    ): void {\n        const target = renderSeries.containers[RenderLayerName.data];\n        const barStylesFn = renderer.getContainerStateStyles;\n        const selectedDataPointIdx = !isUndefined(this.selectedDataPointIdxFn)\n            ? this.selectedDataPointIdxFn(renderSeries.dataSeries.id)\n            : DATA_POINT_NOT_FOUND;\n\n        target\n            .selectAll(`g.${renderer.barContainerClass}`)\n            .each(function (d: any, index: number) {\n                let renderState: RenderState;\n                if (dataPointIndex === DATA_POINT_INTERACTION_RESET) {\n                    if (\n                        index === selectedDataPointIdx ||\n                        selectedDataPointIdx === DATA_POINT_NOT_FOUND\n                    ) {\n                        renderState = RenderState.default;\n                    } else {\n                        renderState = RenderState.deemphasized;\n                    }\n                } else if (\n                    dataPointIndex === index ||\n                    index === selectedDataPointIdx\n                ) {\n                    renderState = RenderState.emphasized;\n                } else {\n                    renderState = RenderState.deemphasized;\n                }\n                select(this).attrs(barStylesFn(renderState));\n            });\n\n        // rendererSubject.next({\n        //     eventName: HIGHLIGHT_SERIES_EVENT,\n        //     data: renderer.getDataPoint(renderSeries, renderSeries.dataSeries.data[dataPointIndex], dataPointIndex),\n        // });\n    }\n\n    public draw(\n        renderer: BarRenderer,\n        renderSeries: IRenderSeries<IRectangleAccessors>,\n        rendererSubject: Subject<IRendererEventPayload>\n    ): void {}\n}\n"]}