/* *
 *
 *  Highcharts Drilldown module
 *
 *  Author: Torstein Honsi
 *
 *  License: www.highcharts.com/license
 *
 *  !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
 *
 * */
'use strict';
import A from '../../Core/Animation/AnimationUtilities.js';
const { animObject } = A;
import Breadcrumbs from '../Breadcrumbs/Breadcrumbs.js';
import Color from '../../Core/Color/Color.js';
import H from '../../Core/Globals.js';
const { noop } = H;
import DrilldownDefaults from './DrilldownDefaults.js';
import DrilldownSeries from './DrilldownSeries.js';
import U from '../../Core/Utilities.js';
const { addEvent, defined, diffObjects, extend, fireEvent, merge, objectEach, pick, pushUnique, removeEvent, syncTimeout } = U;
/* *
 *
 *  Variables
 *
 * */
let ddSeriesId = 1;
/* *
 *
 *  Functions
 *
 * */
/**
 * Drill down to a given category. This is the same as clicking on an axis
 * label. If multiple series with drilldown are present, all will drill down to
 * the given category.
 *
 * See also `Point.doDrilldown` for drilling down on a single point instance.
 *
 * @function Highcharts.Axis#drilldownCategory
 *
 * @sample {highcharts} highcharts/drilldown/programmatic
 *         Programmatic drilldown
 *
 * @param {number} x
 *        The index of the category
 * @param {global.MouseEvent} [originalEvent]
 *        The original event, used internally.
 */
function axisDrilldownCategory(x, originalEvent) {
    this.getDDPoints(x).forEach(function (point) {
        if (point &&
            point.series &&
            point.series.visible &&
            point.runDrilldown) { // #3197
            point.runDrilldown(true, x, originalEvent);
        }
    });
    this.chart.applyDrilldown();
}
/**
 * Return drillable points for this specific X value.
 *
 * @private
 * @function Highcharts.Axis#getDDPoints
 * @param {number} x
 *        Tick position
 * @return {Array<(false|Highcharts.Point)>}
 *         Drillable points
 */
function axisGetDDPoints(x) {
    return (this.ddPoints && this.ddPoints[x] || []);
}
/**
 * This method creates an array of arrays containing a level number
 * with the corresponding series/point.
 *
 * @requires  modules/breadcrumbs
 *
 * @private
 * @param {Highcharts.Chart} chart
 *        Highcharts Chart object.
 * @return {Array<Breadcrumbs.BreadcrumbOptions>}
 * List for Highcharts Breadcrumbs.
 */
function createBreadcrumbsList(chart) {
    const list = [], drilldownLevels = chart.drilldownLevels;
    // The list is based on drilldown levels from the chart object
    if (drilldownLevels && drilldownLevels.length) {
        // Add the initial series as the first element.
        if (!list[0]) {
            list.push({
                level: 0,
                levelOptions: drilldownLevels[0].seriesOptions
            });
        }
        drilldownLevels.forEach(function (level, i) {
            const lastBreadcrumb = list[list.length - 1];
            // If level is already added to breadcrumbs list,
            // don't add it again- drilling categories
            // + 1 because of the wrong levels numeration
            // in drilldownLevels array.
            if (level.levelNumber + 1 > lastBreadcrumb.level) {
                list.push({
                    level: level.levelNumber + 1,
                    levelOptions: merge({
                        name: level.lowerSeries.name
                    }, level.pointOptions)
                });
            }
        });
    }
    return list;
}
/* *
 *
 *  Class
 *
 * */
/**
 * @private
 */
class ChartAdditions {
    /* *
     *
     *  Constructor
     *
     * */
    constructor(chart) {
        this.chart = chart;
    }
    /* *
     *
     *  Functions
     *
     * */
    /**
     * Add a series to the chart as drilldown from a specific point in the
     * parent series. This method is used for async drilldown, when clicking a
     * point in a series should result in loading and displaying a more
     * high-resolution series. When not async, the setup is simpler using the
     * [drilldown.series](https://api.highcharts.com/highcharts/drilldown.series)
     * options structure.
     *
     * @sample highcharts/drilldown/async/
     *         Async drilldown
     *
     * @function Highcharts.Chart#addSeriesAsDrilldown
     *
     * @param {Highcharts.Point} point
     * The point from which the drilldown will start.
     *
     * @param {Highcharts.SeriesOptionsType} options
     * The series options for the new, detailed series.
     */
    addSeriesAsDrilldown(point, options) {
        const chart = (this.chart ||
            this);
        if (chart.mapView) {
            // stop hovering while drilling down
            point.series.isDrilling = true;
            chart.series.forEach((series) => {
                // stop duplicating and overriding animations
                series.options.inactiveOtherPoints = true;
                // hide and disable dataLabels
                series.dataLabelsGroup?.destroy();
                delete series.dataLabelsGroup;
            });
            // #18925 map zooming is not working with geoJSON maps
            if (chart.options.drilldown &&
                !chart.mapView.projection.hasGeoProjection &&
                DrilldownDefaults) {
                const userDrilldown = diffObjects(chart.options.drilldown, DrilldownDefaults);
                // set mapZooming to false if user didn't set any in chart
                // config
                if (!defined(userDrilldown.mapZooming)) {
                    chart.options.drilldown.mapZooming = false;
                }
            }
            if (chart.options.drilldown &&
                chart.options.drilldown.animation &&
                chart.options.drilldown.mapZooming) {
                // first zoomTo then crossfade series
                chart.mapView.allowTransformAnimation = true;
                const animOptions = animObject(chart.options.drilldown.animation);
                if (typeof animOptions !== 'boolean') {
                    const userComplete = animOptions.complete, drilldownComplete = function (obj) {
                        if (obj && obj.applyDrilldown && chart.mapView) {
                            chart
                                .addSingleSeriesAsDrilldown(point, options);
                            chart.applyDrilldown();
                            chart.mapView.allowTransformAnimation = false;
                        }
                    };
                    animOptions.complete =
                        function () {
                            if (userComplete) {
                                userComplete.apply(this, arguments);
                            }
                            drilldownComplete.apply(this, arguments);
                        };
                }
                point.zoomTo(animOptions);
            }
            else {
                chart.addSingleSeriesAsDrilldown(point, options);
                chart.applyDrilldown();
            }
        }
        else {
            chart.addSingleSeriesAsDrilldown(point, options);
            chart.applyDrilldown();
        }
    }
    /** @private */
    addSingleSeriesAsDrilldown(point, ddOptions) {
        const chart = (this.chart ||
            this), oldSeries = point.series, xAxis = oldSeries.xAxis, yAxis = oldSeries.yAxis, colorProp = chart.styledMode ?
            { colorIndex: pick(point.colorIndex, oldSeries.colorIndex) } :
            { color: point.color || oldSeries.color }, levelNumber = oldSeries.options._levelNumber || 0, pointIndex = oldSeries.points.indexOf(point);
        if (!chart.drilldownLevels) {
            chart.drilldownLevels = [];
        }
        ddOptions = extend(extend({
            _ddSeriesId: ddSeriesId++
        }, colorProp), ddOptions);
        let levelSeries = [], levelSeriesOptions = [], last;
        // See if we can reuse the registered series from last run
        last = chart.drilldownLevels[chart.drilldownLevels.length - 1];
        if (last && last.levelNumber !== levelNumber) {
            last = void 0;
        }
        // Record options for all current series
        oldSeries.chart.series.forEach((series) => {
            if (series.xAxis === xAxis) {
                series.options._ddSeriesId =
                    series.options._ddSeriesId || ddSeriesId++;
                series.options.colorIndex = series.colorIndex;
                series.options._levelNumber =
                    series.options._levelNumber || levelNumber; // #3182
                if (last) {
                    levelSeries = last.levelSeries;
                    levelSeriesOptions = last.levelSeriesOptions;
                }
                else {
                    levelSeries.push(series);
                    // (#10597)
                    series.purgedOptions = merge({
                        _ddSeriesId: series.options._ddSeriesId,
                        _levelNumber: series.options._levelNumber,
                        selected: series.options.selected
                    }, series.userOptions);
                    levelSeriesOptions.push(series.purgedOptions);
                }
            }
        });
        // Add a record of properties for each drilldown level
        const level = extend({
            levelNumber: levelNumber,
            seriesOptions: oldSeries.options,
            seriesPurgedOptions: oldSeries.purgedOptions,
            levelSeriesOptions: levelSeriesOptions,
            levelSeries: levelSeries,
            shapeArgs: point.shapeArgs,
            // no graphic in line series with markers disabled
            bBox: point.graphic ? point.graphic.getBBox() : {},
            color: point.isNull ?
                Color.parse(colorProp.color).setOpacity(0).get() :
                colorProp.color,
            lowerSeriesOptions: ddOptions,
            pointOptions: oldSeries.options.data[pointIndex],
            pointIndex: pointIndex,
            oldExtremes: {
                xMin: xAxis && xAxis.userMin,
                xMax: xAxis && xAxis.userMax,
                yMin: yAxis && yAxis.userMin,
                yMax: yAxis && yAxis.userMax
            },
            resetZoomButton: last && last.levelNumber === levelNumber ?
                void 0 : chart.resetZoomButton
        }, colorProp);
        // Push it to the lookup array
        chart.drilldownLevels.push(level);
        // Reset names to prevent extending (#6704)
        if (xAxis && xAxis.names) {
            xAxis.names.length = 0;
        }
        const newSeries = level.lowerSeries = chart.addSeries(ddOptions, false);
        newSeries.options._levelNumber = levelNumber + 1;
        if (xAxis) {
            xAxis.oldPos = xAxis.pos;
            xAxis.userMin = xAxis.userMax = null;
            yAxis.userMin = yAxis.userMax = null;
        }
        newSeries.isDrilling = true;
        // Run fancy cross-animation on supported and equal types
        if (oldSeries.type === newSeries.type) {
            newSeries.animate = (newSeries.animateDrilldown || noop);
            newSeries.options.animation = true;
        }
    }
    applyDrilldown() {
        const chart = (this.chart ||
            this), drilldownLevels = chart.drilldownLevels;
        let levelToRemove;
        if (drilldownLevels && drilldownLevels.length > 0) {
            // #3352, async loading
            levelToRemove =
                drilldownLevels[drilldownLevels.length - 1].levelNumber;
            chart.hasCartesianSeries = drilldownLevels.some((level) => level.lowerSeries.isCartesian // #19725
            );
            (chart.drilldownLevels || []).forEach((level) => {
                if (chart.mapView &&
                    chart.options.drilldown &&
                    chart.options.drilldown.mapZooming) {
                    chart.redraw();
                    level.lowerSeries.isDrilling = false;
                    chart.mapView.fitToBounds(level.lowerSeries.bounds);
                    level.lowerSeries.isDrilling = true;
                }
                if (level.levelNumber === levelToRemove) {
                    level.levelSeries.forEach((series) => {
                        // Not removed, not added as part of a multi-series
                        // drilldown
                        if (!chart.mapView) {
                            if (series.options &&
                                series.options._levelNumber === levelToRemove) {
                                series.remove(false);
                            }
                            // Deal with asonchrynous removing of map series
                            // after zooming into
                        }
                        else if (series.options &&
                            series.options._levelNumber === levelToRemove &&
                            series.group) {
                            let animOptions = {};
                            if (chart.options.drilldown) {
                                animOptions = chart.options.drilldown.animation;
                            }
                            series.group.animate({
                                opacity: 0
                            }, animOptions, () => {
                                series.remove(false);
                                // If it is the last series
                                if (!(level.levelSeries.filter((el) => Object.keys(el).length)).length) {
                                    // We have a reset zoom button. Hide it and
                                    // detatch it from the chart. It is
                                    // preserved to the layer config above.
                                    if (chart.resetZoomButton) {
                                        chart.resetZoomButton.hide();
                                        delete chart.resetZoomButton;
                                    }
                                    chart.pointer.reset();
                                    fireEvent(chart, 'afterDrilldown');
                                    if (chart.mapView) {
                                        chart.series.forEach((series) => {
                                            series.isDirtyData = true;
                                            series.isDrilling = false;
                                        });
                                        chart.mapView
                                            .fitToBounds(void 0, void 0);
                                    }
                                    fireEvent(chart, 'afterApplyDrilldown');
                                }
                            });
                        }
                    });
                }
            });
        }
        if (!chart.mapView) {
            // We have a reset zoom button. Hide it and detatch it from the
            // chart. It is preserved to the layer config above.
            if (chart.resetZoomButton) {
                chart.resetZoomButton.hide();
                delete chart.resetZoomButton;
            }
            chart.pointer.reset();
            fireEvent(chart, 'afterDrilldown');
            // Axes shouldn't be visible after drilling into non-cartesian
            // (#19725)
            if (!chart.hasCartesianSeries) {
                chart.axes.forEach((axis) => {
                    axis.destroy(true);
                    axis.init(chart, merge(axis.userOptions, axis.options));
                });
            }
            chart.redraw();
            fireEvent(chart, 'afterApplyDrilldown');
        }
    }
    /**
     * When the chart is drilled down to a child series, calling
     * `chart.drillUp()` will drill up to the parent series.
     *
     * @requires  modules/drilldown
     *
     * @function Highcharts.Chart#drillUp
     *
     * @sample {highcharts} highcharts/drilldown/programmatic
     *         Programmatic drilldown
     */
    drillUp(isMultipleDrillUp) {
        const chart = (this.chart ||
            this);
        if (!chart.drilldownLevels || chart.drilldownLevels.length === 0) {
            return;
        }
        fireEvent(chart, 'beforeDrillUp');
        const drilldownLevels = chart.drilldownLevels, levelNumber = drilldownLevels[drilldownLevels.length - 1].levelNumber, chartSeries = chart.series, drilldownLevelsNumber = chart.drilldownLevels.length, addSeries = (seriesOptions, oldSeries) => {
            let addedSeries;
            chartSeries.forEach((series) => {
                if (series.options._ddSeriesId ===
                    seriesOptions._ddSeriesId) {
                    addedSeries = series;
                }
            });
            addedSeries =
                addedSeries || chart.addSeries(seriesOptions, false);
            if (addedSeries.type === oldSeries.type &&
                addedSeries.animateDrillupTo) {
                addedSeries.animate = addedSeries.animateDrillupTo;
            }
            if (seriesOptions === level.seriesPurgedOptions) {
                return addedSeries;
            }
        }, removeSeries = (oldSeries) => {
            oldSeries.remove(false);
            chart.series.forEach((series) => {
                // ensures to redraw series to get correct colors
                if (series.colorAxis) {
                    series.isDirtyData = true;
                }
                series.options.inactiveOtherPoints = false;
            });
            chart.redraw();
        };
        let i = drilldownLevels.length, seriesI, level, oldExtremes;
        // Reset symbol and color counters after every drill-up. (#19134)
        chart.symbolCounter = chart.colorCounter = 0;
        while (i--) {
            let oldSeries, newSeries;
            level = drilldownLevels[i];
            if (level.levelNumber === levelNumber) {
                drilldownLevels.pop();
                // Get the lower series by reference or id
                oldSeries = level.lowerSeries;
                if (!oldSeries.chart) { // #2786
                    seriesI = chartSeries.length; // #2919
                    while (seriesI--) {
                        if (chartSeries[seriesI].options.id ===
                            level.lowerSeriesOptions.id &&
                            chartSeries[seriesI].options._levelNumber ===
                                levelNumber + 1) { // #3867
                            oldSeries = chartSeries[seriesI];
                            break;
                        }
                    }
                }
                oldSeries.xData = []; // Overcome problems with minRange (#2898)
                // Reset the names to start new series from the beginning.
                // Do it once to preserve names when multiple
                // series are added for the same axis, #16135.
                if (oldSeries.xAxis &&
                    oldSeries.xAxis.names &&
                    (drilldownLevelsNumber === 0 || i === drilldownLevelsNumber)) {
                    oldSeries.xAxis.names.length = 0;
                }
                level.levelSeriesOptions.forEach((el) => {
                    const addedSeries = addSeries(el, oldSeries);
                    if (addedSeries) {
                        newSeries = addedSeries;
                    }
                });
                fireEvent(chart, 'drillup', {
                    seriesOptions: level.seriesPurgedOptions ||
                        level.seriesOptions
                });
                if (newSeries) {
                    if (newSeries.type === oldSeries.type) {
                        newSeries.drilldownLevel = level;
                        newSeries.options.animation =
                            chart.options.drilldown.animation;
                        // #2919
                        if (oldSeries.animateDrillupFrom && oldSeries.chart) {
                            oldSeries.animateDrillupFrom(level);
                        }
                    }
                    newSeries.options._levelNumber = levelNumber;
                }
                const seriesToRemove = oldSeries;
                // cannot access variable changed in loop
                if (!chart.mapView) {
                    seriesToRemove.remove(false);
                }
                // Reset the zoom level of the upper series
                if (newSeries && newSeries.xAxis) {
                    oldExtremes = level.oldExtremes;
                    newSeries.xAxis.setExtremes(oldExtremes.xMin, oldExtremes.xMax, false);
                    newSeries.yAxis.setExtremes(oldExtremes.yMin, oldExtremes.yMax, false);
                }
                // We have a resetZoomButton tucked away for this level. Attatch
                // it to the chart and show it.
                if (level.resetZoomButton) {
                    chart.resetZoomButton = level.resetZoomButton;
                }
                if (!chart.mapView) {
                    fireEvent(chart, 'afterDrillUp');
                    chart.redraw();
                    if (chart.ddDupes) {
                        chart.ddDupes.length = 0; // #3315
                    } // #8324
                    // Fire a once-off event after all series have been drilled
                    // up (#5158)
                    fireEvent(chart, 'drillupall');
                }
                else {
                    const shouldAnimate = level.levelNumber === levelNumber &&
                        isMultipleDrillUp, zoomingDrill = chart.options.drilldown &&
                        chart.options.drilldown.animation &&
                        chart.options.drilldown.mapZooming;
                    if (shouldAnimate) {
                        oldSeries.remove(false);
                    }
                    else {
                        // hide and disable dataLabels
                        if (oldSeries.dataLabelsGroup) {
                            oldSeries.dataLabelsGroup.destroy();
                            delete oldSeries.dataLabelsGroup;
                        }
                        if (chart.mapView && newSeries) {
                            if (zoomingDrill) {
                                // stop hovering while drilling down
                                oldSeries.isDrilling = true;
                                newSeries.isDrilling = true;
                                chart.redraw(false);
                                // Fit to previous bounds
                                chart.mapView.fitToBounds(oldSeries.bounds, void 0, true, false);
                            }
                            chart.mapView.allowTransformAnimation = true;
                            fireEvent(chart, 'afterDrillUp', {
                                seriesOptions: newSeries ? newSeries.userOptions : void 0
                            });
                            if (zoomingDrill) {
                                // Fit to natural bounds
                                chart.mapView.setView(void 0, 1, true, {
                                    complete: function () {
                                        // fire it only on complete in this
                                        // place (once)
                                        if (Object.prototype.hasOwnProperty
                                            .call(this, 'complete')) {
                                            removeSeries(oldSeries);
                                        }
                                    }
                                });
                            }
                            else {
                                // When user don't want to zoom into region only
                                // fade out
                                chart.mapView.allowTransformAnimation = false;
                                if (oldSeries.group) {
                                    oldSeries.group.animate({
                                        opacity: 0
                                    }, chart.options.drilldown.animation, () => {
                                        removeSeries(oldSeries);
                                        if (chart.mapView) {
                                            chart.mapView
                                                .allowTransformAnimation = true;
                                        }
                                    });
                                }
                                else {
                                    removeSeries(oldSeries);
                                    chart.mapView
                                        .allowTransformAnimation = true;
                                }
                            }
                            newSeries.isDrilling = false;
                            if (chart.ddDupes) {
                                chart.ddDupes.length = 0; // #3315
                            } // #8324
                            // Fire a once-off event after all series have been
                            // drilled up (#5158)
                            fireEvent(chart, 'drillupall');
                        }
                    }
                }
            }
        }
    }
    /**
     * A function to fade in a group. First, the element is being hidden, then,
     * using `opactiy`, is faded in. Used for example by `dataLabelsGroup` where
     * simple SVGElement.fadeIn() is not enough, because of other features (e.g.
     * InactiveState) using `opacity` to fadeIn/fadeOut.
     *
     * @requires module:modules/drilldown
     *
     * @private
     * @param {SVGElement} [group]
     *        The SVG element to be faded in.
     */
    fadeInGroup(group) {
        const chart = this.chart, animationOptions = animObject(chart.options.drilldown.animation);
        if (group) {
            group.hide();
            syncTimeout(() => {
                // Make sure neither group nor chart were destroyed
                if (group && group.added) {
                    group.fadeIn();
                }
            }, Math.max(animationOptions.duration - 50, 0));
        }
    }
    /**
     * Update function to be called internally from Chart.update (#7600, #12855)
     * @private
     */
    update(options, redraw) {
        const chart = this.chart;
        merge(true, chart.options.drilldown, options);
        if (pick(redraw, true)) {
            chart.redraw();
        }
    }
}
/* *
 *
 *  Composition
 *
 * */
var Drilldown;
(function (Drilldown) {
    /* *
     *
     *  Declarations
     *
     * */
    /* *
     *
     *  Constants
     *
     * */
    const composedMembers = [];
    /* *
     *
     *  Functions
     *
     * */
    /** @private */
    function compose(AxisClass, ChartClass, highchartsDefaultOptions, SeriesClass, seriesTypes, SVGRendererClass, TickClass) {
        const SVGElementClass = SVGRendererClass.prototype.Element;
        DrilldownSeries.compose(SeriesClass, seriesTypes);
        if (pushUnique(composedMembers, AxisClass)) {
            const axisProto = AxisClass.prototype;
            axisProto.drilldownCategory = axisDrilldownCategory;
            axisProto.getDDPoints = axisGetDDPoints;
        }
        if (pushUnique(composedMembers, Breadcrumbs)) {
            Breadcrumbs.compose(ChartClass, highchartsDefaultOptions);
            addEvent(Breadcrumbs, 'up', onBreadcrumbsUp);
        }
        if (pushUnique(composedMembers, ChartClass)) {
            const DrilldownChart = ChartClass;
            const addonProto = ChartAdditions.prototype;
            const chartProto = DrilldownChart.prototype;
            chartProto.addSeriesAsDrilldown = addonProto.addSeriesAsDrilldown;
            chartProto.addSingleSeriesAsDrilldown =
                addonProto.addSingleSeriesAsDrilldown;
            chartProto.applyDrilldown = addonProto.applyDrilldown;
            chartProto.drillUp = addonProto.drillUp;
            addEvent(DrilldownChart, 'afterDrilldown', onChartAfterDrilldown);
            addEvent(DrilldownChart, 'afterDrillUp', onChartAfterDrillUp);
            addEvent(DrilldownChart, 'afterInit', onChartAfterInit);
            addEvent(DrilldownChart, 'drillup', onChartDrillup);
            addEvent(DrilldownChart, 'drillupall', onChartDrillupall);
            addEvent(DrilldownChart, 'render', onChartRender);
            addEvent(DrilldownChart, 'update', onChartUpdate);
        }
        if (pushUnique(composedMembers, highchartsDefaultOptions)) {
            highchartsDefaultOptions.drilldown = DrilldownDefaults;
        }
        if (pushUnique(composedMembers, SVGElementClass)) {
            const elementProto = SVGElementClass.prototype;
            elementProto.fadeIn = svgElementFadeIn;
        }
        if (pushUnique(composedMembers, TickClass)) {
            const tickProto = TickClass.prototype;
            tickProto.drillable = tickDrillable;
        }
    }
    Drilldown.compose = compose;
    /** @private */
    function onBreadcrumbsUp(e) {
        const chart = this.chart, drillUpsNumber = this.getLevel() - e.newLevel;
        let isMultipleDrillUp = drillUpsNumber > 1;
        for (let i = 0; i < drillUpsNumber; i++) {
            if (i === drillUpsNumber - 1) {
                isMultipleDrillUp = false;
            }
            chart.drillUp(isMultipleDrillUp);
        }
    }
    /** @private */
    function onChartAfterDrilldown() {
        const chart = this, drilldownOptions = chart.options.drilldown, breadcrumbsOptions = drilldownOptions && drilldownOptions.breadcrumbs;
        if (!chart.breadcrumbs) {
            chart.breadcrumbs = new Breadcrumbs(chart, breadcrumbsOptions);
        }
        chart.breadcrumbs.updateProperties(createBreadcrumbsList(chart));
    }
    /** @private */
    function onChartAfterDrillUp() {
        const chart = this;
        if (chart.breadcrumbs) {
            chart.breadcrumbs.updateProperties(createBreadcrumbsList(chart));
        }
    }
    /**
     * Add update function to be called internally from Chart.update (#7600,
     * #12855)
     * @private
     */
    function onChartAfterInit() {
        this.drilldown = new ChartAdditions(this);
    }
    /** @private */
    function onChartDrillup() {
        const chart = this;
        if (chart.resetZoomButton) {
            chart.resetZoomButton = chart.resetZoomButton.destroy();
        }
    }
    /** @private */
    function onChartDrillupall() {
        const chart = this;
        if (chart.resetZoomButton) {
            chart.showResetZoom();
        }
    }
    /** @private */
    function onChartRender() {
        (this.xAxis || []).forEach((axis) => {
            axis.ddPoints = {};
            axis.series.forEach((series) => {
                const xData = series.xData || [], points = series.points;
                for (let i = 0, iEnd = xData.length, p; i < iEnd; i++) {
                    p = series.options.data[i];
                    // The `drilldown` property can only be set on an array or an
                    // object
                    if (typeof p !== 'number') {
                        // Convert array to object (#8008)
                        p = series.pointClass.prototype.optionsToObject
                            .call({ series: series }, p);
                        if (p.drilldown) {
                            if (!axis.ddPoints[xData[i]]) {
                                axis.ddPoints[xData[i]] = [];
                            }
                            const index = i - (series.cropStart || 0);
                            axis.ddPoints[xData[i]].push(points && index >= 0 && index < points.length ?
                                points[index] :
                                true);
                        }
                    }
                }
            });
            // Add drillability to ticks, and always keep it drillability
            // updated (#3951)
            objectEach(axis.ticks, (tick) => tick.drillable());
        });
    }
    /** @private */
    function onChartUpdate(e) {
        const breadcrumbs = this.breadcrumbs, breadcrumbOptions = e.options.drilldown && e.options.drilldown.breadcrumbs;
        if (breadcrumbs && breadcrumbOptions) {
            breadcrumbs.update(breadcrumbOptions);
        }
    }
    /**
     * A general fadeIn method.
     *
     * @requires module:modules/drilldown
     *
     * @function Highcharts.SVGElement#fadeIn
     *
     * @param {boolean|Partial<Highcharts.AnimationOptionsObject>} [animation]
     * The animation options for the element fade.
     */
    function svgElementFadeIn(animation) {
        const elem = this;
        elem
            .attr({
            opacity: 0.1,
            visibility: 'inherit'
        })
            .animate({
            opacity: pick(elem.newOpacity, 1) // newOpacity used in maps
        }, animation || {
            duration: 250
        });
    }
    /**
     * Make a tick label drillable, or remove drilling on update.
     * @private
     */
    function tickDrillable() {
        const pos = this.pos, label = this.label, axis = this.axis, isDrillable = axis.coll === 'xAxis' && axis.getDDPoints, ddPointsX = isDrillable && axis.getDDPoints(pos), styledMode = axis.chart.styledMode;
        if (isDrillable) {
            if (label && ddPointsX && ddPointsX.length) {
                label.drillable = true;
                if (!label.basicStyles && !styledMode) {
                    label.basicStyles = merge(label.styles);
                }
                label.addClass('highcharts-drilldown-axis-label');
                // #12656 - avoid duplicate of attach event
                if (label.removeOnDrillableClick) {
                    removeEvent(label.element, 'click');
                }
                label.removeOnDrillableClick = addEvent(label.element, 'click', function (e) {
                    e.preventDefault();
                    axis.drilldownCategory(pos, e);
                });
                if (!styledMode && axis.chart.options.drilldown) {
                    label.css(axis.chart.options.drilldown.activeAxisLabelStyle || {});
                }
            }
            else if (label &&
                label.drillable && label.removeOnDrillableClick) {
                if (!styledMode) {
                    label.styles = {}; // reset for full overwrite of styles
                    label.element.removeAttribute('style'); // #17933
                    label.css(label.basicStyles);
                }
                label.removeOnDrillableClick(); // #3806
                label.removeClass('highcharts-drilldown-axis-label');
            }
        }
    }
})(Drilldown || (Drilldown = {}));
/* *
 *
 *  Default Export
 *
 * */
export default Drilldown;
/* *
 *
 *  API Declarations
 *
 * */
/**
 * Gets fired when a drilldown point is clicked, before the new series is added.
 * Note that when clicking a category label to trigger multiple series
 * drilldown, one `drilldown` event is triggered per point in the category.
 *
 * @callback Highcharts.DrilldownCallbackFunction
 *
 * @param {Highcharts.Chart} this
 *        The chart where the event occurs.
 *
 * @param {Highcharts.DrilldownEventObject} e
 *        The drilldown event.
 */
/**
 * The event arguments when a drilldown point is clicked.
 *
 * @interface Highcharts.DrilldownEventObject
 */ /**
* If a category label was clicked, which index.
* @name Highcharts.DrilldownEventObject#category
* @type {number|undefined}
*/ /**
* The original browser event (usually click) that triggered the drilldown.
* @name Highcharts.DrilldownEventObject#originalEvent
* @type {global.Event|undefined}
*/ /**
* Prevents the default behaviour of the event.
* @name Highcharts.DrilldownEventObject#preventDefault
* @type {Function}
*/ /**
* The originating point.
* @name Highcharts.DrilldownEventObject#point
* @type {Highcharts.Point}
*/ /**
* If a category label was clicked, this array holds all points corresponding to
* the category. Otherwise it is set to false.
* @name Highcharts.DrilldownEventObject#points
* @type {boolean|Array<Highcharts.Point>|undefined}
*/ /**
* Options for the new series. If the event is utilized for async drilldown, the
* seriesOptions are not added, but rather loaded async.
* @name Highcharts.DrilldownEventObject#seriesOptions
* @type {Highcharts.SeriesOptionsType|undefined}
*/ /**
* The event target.
* @name Highcharts.DrilldownEventObject#target
* @type {Highcharts.Chart}
*/ /**
* The event type.
* @name Highcharts.DrilldownEventObject#type
* @type {"drilldown"}
*/
/**
 * This gets fired after all the series have been drilled up. This is especially
 * usefull in a chart with multiple drilldown series.
 *
 * @callback Highcharts.DrillupAllCallbackFunction
 *
 * @param {Highcharts.Chart} this
 *        The chart where the event occurs.
 *
 * @param {Highcharts.DrillupAllEventObject} e
 *        The final drillup event.
 */
/**
 * The event arguments when all the series have been drilled up.
 *
 * @interface Highcharts.DrillupAllEventObject
 */ /**
* Prevents the default behaviour of the event.
* @name Highcharts.DrillupAllEventObject#preventDefault
* @type {Function}
*/ /**
* The event target.
* @name Highcharts.DrillupAllEventObject#target
* @type {Highcharts.Chart}
*/ /**
* The event type.
* @name Highcharts.DrillupAllEventObject#type
* @type {"drillupall"}
*/
/**
 * Gets fired when drilling up from a drilldown series.
 *
 * @callback Highcharts.DrillupCallbackFunction
 *
 * @param {Highcharts.Chart} this
 *        The chart where the event occurs.
 *
 * @param {Highcharts.DrillupEventObject} e
 *        The drillup event.
 */
/**
 * The event arguments when drilling up from a drilldown series.
 *
 * @interface Highcharts.DrillupEventObject
 */ /**
* Prevents the default behaviour of the event.
* @name Highcharts.DrillupEventObject#preventDefault
* @type {Function}
*/ /**
* Options for the new series.
* @name Highcharts.DrillupEventObject#seriesOptions
* @type {Highcharts.SeriesOptionsType|undefined}
*/ /**
* The event target.
* @name Highcharts.DrillupEventObject#target
* @type {Highcharts.Chart}
*/ /**
* The event type.
* @name Highcharts.DrillupEventObject#type
* @type {"drillup"}
*/
''; // keeps doclets above in JS file
