@visactor/vchart/esm/chart/sankey/sankey.js

charts lib based @visactor/VGrammar

import { BaseChart } from "../base/base-chart";

import { SeriesTypeEnum } from "../../series/interface/type";

import { registerSankeySeries } from "../../series/sankey/sankey";

import { Factory } from "../../core/factory";

import { SankeyChartSpecTransformer } from "./sankey-transformer";

import { isArray, isFunction } from "@visactor/vutils";

import { loadScrollbar } from "@visactor/vrender-components";

export class SankeyChart extends BaseChart {
    constructor() {
        super(...arguments), this.transformerConstructor = SankeyChartSpecTransformer, this.type = "sankey", 
        this.seriesType = SeriesTypeEnum.sankey;
    }
    _setStateInDatum(stateKey, checkReverse, datum, filter, region) {
        const activeDatum = isArray(datum) ? datum[0] : datum, keys = activeDatum ? Object.keys(activeDatum) : null;
        this.getRegionsInQuerier(region).forEach((r => {
            if (!activeDatum) return void r.interaction.clearEventElement(stateKey, !0);
            let hasPick = !1;
            r.getSeries().forEach((s => {
                var _a, _b;
                let activeNodeOrLink = null;
                s.getMarksWithoutRoot().forEach((m => {
                    if ("text" === m.type) return;
                    let pickElement = null;
                    const mark = m.getProduct();
                    mark && ((!filter || isFunction(filter) && filter(s, m)) && (pickElement = mark.elements.find((e => keys.every((k => {
                        var _a;
                        let datum = null === (_a = e.getDatum()) || void 0 === _a ? void 0 : _a.datum;
                        return isArray(datum) && (datum = datum[0]), activeDatum[k] == (null == datum ? void 0 : datum[k]);
                    }))))), pickElement && (hasPick = !0, r.interaction.startInteraction(stateKey, pickElement), 
                    (mark.id().includes("node") || mark.id().includes("link")) && (activeNodeOrLink = pickElement)));
                })), activeNodeOrLink && (null === (_b = (_a = s)._handleEmphasisElement) || void 0 === _b || _b.call(_a, {
                    item: activeNodeOrLink
                }));
            })), checkReverse && hasPick && r.interaction.reverseEventElement(stateKey);
        }));
    }
}

SankeyChart.type = "sankey", SankeyChart.seriesType = SeriesTypeEnum.sankey, SankeyChart.transformerConstructor = SankeyChartSpecTransformer;

export const registerSankeyChart = () => {
    loadScrollbar(), registerSankeySeries(), Factory.registerChart(SankeyChart.type, SankeyChart);
};
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