mint/app/public/js/Highstock-8.0.0/code/es-modules/parts/Scrollbar.js

/* *
 *
 *  (c) 2010-2019 Torstein Honsi
 *
 *  License: www.highcharts.com/license
 *
 *  !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
 *
 * */
'use strict';
import H from './Globals.js';
import U from './Utilities.js';
var correctFloat = U.correctFloat, defined = U.defined, destroyObjectProperties = U.destroyObjectProperties, pick = U.pick;
import './Axis.js';
import './Options.js';
var addEvent = H.addEvent, Axis = H.Axis, defaultOptions = H.defaultOptions, fireEvent = H.fireEvent, hasTouch = H.hasTouch, isTouchDevice = H.isTouchDevice, merge = H.merge, removeEvent = H.removeEvent, swapXY;
/**
 *
 * The scrollbar is a means of panning over the X axis of a stock chart.
 * Scrollbars can  also be applied to other types of axes.
 *
 * Another approach to scrollable charts is the [chart.scrollablePlotArea](
 * https://api.highcharts.com/highcharts/chart.scrollablePlotArea) option that
 * is especially suitable for simpler cartesian charts on mobile.
 *
 * In styled mode, all the presentational options for the
 * scrollbar are replaced by the classes `.highcharts-scrollbar-thumb`,
 * `.highcharts-scrollbar-arrow`, `.highcharts-scrollbar-button`,
 * `.highcharts-scrollbar-rifles` and `.highcharts-scrollbar-track`.
 *
 * @sample stock/yaxis/inverted-bar-scrollbar/
 *         A scrollbar on a simple bar chart
 *
 * @product highstock gantt
 * @optionparent scrollbar
 */
var defaultScrollbarOptions = {
    /**
     * The height of the scrollbar. The height also applies to the width
     * of the scroll arrows so that they are always squares. Defaults to
     * 20 for touch devices and 14 for mouse devices.
     *
     * @sample stock/scrollbar/height/
     *         A 30px scrollbar
     *
     * @type    {number}
     * @default 20/14
     */
    height: isTouchDevice ? 20 : 14,
    /**
     * The border rounding radius of the bar.
     *
     * @sample stock/scrollbar/style/
     *         Scrollbar styling
     */
    barBorderRadius: 0,
    /**
     * The corner radius of the scrollbar buttons.
     *
     * @sample stock/scrollbar/style/
     *         Scrollbar styling
     */
    buttonBorderRadius: 0,
    /**
     * Enable or disable the scrollbar.
     *
     * @sample stock/scrollbar/enabled/
     *         Disable the scrollbar, only use navigator
     *
     * @type      {boolean}
     * @default   true
     * @apioption scrollbar.enabled
     */
    /**
     * Whether to redraw the main chart as the scrollbar or the navigator
     * zoomed window is moved. Defaults to `true` for modern browsers and
     * `false` for legacy IE browsers as well as mobile devices.
     *
     * @sample stock/scrollbar/liveredraw
     *         Setting live redraw to false
     *
     * @type  {boolean}
     * @since 1.3
     */
    liveRedraw: void 0,
    /**
     * The margin between the scrollbar and its axis when the scrollbar is
     * applied directly to an axis.
     */
    margin: 10,
    /**
     * The minimum width of the scrollbar.
     *
     * @since 1.2.5
     */
    minWidth: 6,
    /**
     * Whether to show or hide the scrollbar when the scrolled content is
     * zoomed out to it full extent.
     *
     * @type      {boolean}
     * @default   true
     * @apioption scrollbar.showFull
     */
    step: 0.2,
    /**
     * The z index of the scrollbar group.
     */
    zIndex: 3,
    /**
     * The background color of the scrollbar itself.
     *
     * @sample stock/scrollbar/style/
     *         Scrollbar styling
     *
     * @type {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
     */
    barBackgroundColor: '#cccccc',
    /**
     * The width of the bar's border.
     *
     * @sample stock/scrollbar/style/
     *         Scrollbar styling
     */
    barBorderWidth: 1,
    /**
     * The color of the scrollbar's border.
     *
     * @type {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
     */
    barBorderColor: '#cccccc',
    /**
     * The color of the small arrow inside the scrollbar buttons.
     *
     * @sample stock/scrollbar/style/
     *         Scrollbar styling
     *
     * @type {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
     */
    buttonArrowColor: '#333333',
    /**
     * The color of scrollbar buttons.
     *
     * @sample stock/scrollbar/style/
     *         Scrollbar styling
     *
     * @type {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
     */
    buttonBackgroundColor: '#e6e6e6',
    /**
     * The color of the border of the scrollbar buttons.
     *
     * @sample stock/scrollbar/style/
     *         Scrollbar styling
     *
     * @type {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
     */
    buttonBorderColor: '#cccccc',
    /**
     * The border width of the scrollbar buttons.
     *
     * @sample stock/scrollbar/style/
     *         Scrollbar styling
     */
    buttonBorderWidth: 1,
    /**
     * The color of the small rifles in the middle of the scrollbar.
     *
     * @type {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
     */
    rifleColor: '#333333',
    /**
     * The color of the track background.
     *
     * @sample stock/scrollbar/style/
     *         Scrollbar styling
     *
     * @type {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
     */
    trackBackgroundColor: '#f2f2f2',
    /**
     * The color of the border of the scrollbar track.
     *
     * @sample stock/scrollbar/style/
     *         Scrollbar styling
     *
     * @type {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
     */
    trackBorderColor: '#f2f2f2',
    /**
     * The corner radius of the border of the scrollbar track.
     *
     * @sample stock/scrollbar/style/
     *         Scrollbar styling
     *
     * @type      {number}
     * @default   0
     * @apioption scrollbar.trackBorderRadius
     */
    /**
     * The width of the border of the scrollbar track.
     *
     * @sample stock/scrollbar/style/
     *         Scrollbar styling
     */
    trackBorderWidth: 1
};
defaultOptions.scrollbar = merge(true, defaultScrollbarOptions, defaultOptions.scrollbar);
/**
 * When we have vertical scrollbar, rifles and arrow in buttons should be
 * rotated. The same method is used in Navigator's handles, to rotate them.
 *
 * @function Highcharts.swapXY
 *
 * @param {Highcharts.SVGPathArray} path
 *        Path to be rotated.
 *
 * @param {boolean} [vertical]
 *        If vertical scrollbar, swap x-y values.
 *
 * @return {Highcharts.SVGPathArray}
 *         Rotated path.
 */
H.swapXY = swapXY = function (path, vertical) {
    var i, len = path.length, temp;
    if (vertical) {
        for (i = 0; i < len; i += 3) {
            temp = path[i + 1];
            path[i + 1] = path[i + 2];
            path[i + 2] = temp;
        }
    }
    return path;
};
/* eslint-disable no-invalid-this, valid-jsdoc */
/**
 * A reusable scrollbar, internally used in Highstock's navigator and optionally
 * on individual axes.
 *
 * @private
 * @class
 * @name Highcharts.Scrollbar
 * @param {Highcharts.SVGRenderer} renderer
 * @param {Highcharts.ScrollbarOptions} options
 * @param {Highcharts.Chart} chart
 */
function Scrollbar(renderer, options, chart) {
    this.init(renderer, options, chart);
}
Scrollbar.prototype = {
    /**
     * @private
     * @function Highcharts.Scrollbar#init
     * @param {Highcharts.SVGRenderer} renderer
     * @param {Highcharts.ScrollbarOptions} options
     * @param {Highcharts.Chart} chart
     * @return {void}
     */
    init: function (renderer, options, chart) {
        this.scrollbarButtons = [];
        this.renderer = renderer;
        this.userOptions = options;
        this.options = merge(defaultScrollbarOptions, options);
        this.chart = chart;
        // backward compatibility
        this.size = pick(this.options.size, this.options.height);
        // Init
        if (options.enabled) {
            this.render();
            this.initEvents();
            this.addEvents();
        }
    },
    /**
     * Render scrollbar with all required items.
     *
     * @private
     * @function Highcharts.Scrollbar#render
     */
    render: function () {
        var scroller = this, renderer = scroller.renderer, options = scroller.options, size = scroller.size, styledMode = this.chart.styledMode, group;
        // Draw the scrollbar group
        scroller.group = group = renderer.g('scrollbar').attr({
            zIndex: options.zIndex,
            translateY: -99999
        }).add();
        // Draw the scrollbar track:
        scroller.track = renderer.rect()
            .addClass('highcharts-scrollbar-track')
            .attr({
            x: 0,
            r: options.trackBorderRadius || 0,
            height: size,
            width: size
        }).add(group);
        if (!styledMode) {
            scroller.track.attr({
                fill: options.trackBackgroundColor,
                stroke: options.trackBorderColor,
                'stroke-width': options.trackBorderWidth
            });
        }
        this.trackBorderWidth = scroller.track.strokeWidth();
        scroller.track.attr({
            y: -this.trackBorderWidth % 2 / 2
        });
        // Draw the scrollbar itself
        scroller.scrollbarGroup = renderer.g().add(group);
        scroller.scrollbar = renderer.rect()
            .addClass('highcharts-scrollbar-thumb')
            .attr({
            height: size,
            width: size,
            r: options.barBorderRadius || 0
        }).add(scroller.scrollbarGroup);
        scroller.scrollbarRifles = renderer
            .path(swapXY([
            'M',
            -3, size / 4,
            'L',
            -3, 2 * size / 3,
            'M',
            0, size / 4,
            'L',
            0, 2 * size / 3,
            'M',
            3, size / 4,
            'L',
            3, 2 * size / 3
        ], options.vertical))
            .addClass('highcharts-scrollbar-rifles')
            .add(scroller.scrollbarGroup);
        if (!styledMode) {
            scroller.scrollbar.attr({
                fill: options.barBackgroundColor,
                stroke: options.barBorderColor,
                'stroke-width': options.barBorderWidth
            });
            scroller.scrollbarRifles.attr({
                stroke: options.rifleColor,
                'stroke-width': 1
            });
        }
        scroller.scrollbarStrokeWidth = scroller.scrollbar.strokeWidth();
        scroller.scrollbarGroup.translate(-scroller.scrollbarStrokeWidth % 2 / 2, -scroller.scrollbarStrokeWidth % 2 / 2);
        // Draw the buttons:
        scroller.drawScrollbarButton(0);
        scroller.drawScrollbarButton(1);
    },
    /**
     * Position the scrollbar, method called from a parent with defined
     * dimensions.
     *
     * @private
     * @function Highcharts.Scrollbar#position
     * @param {number} x
     *        x-position on the chart
     * @param {number} y
     *        y-position on the chart
     * @param {number} width
     *        width of the scrollbar
     * @param {number} height
     *        height of the scorllbar
     * @return {void}
     */
    position: function (x, y, width, height) {
        var scroller = this, options = scroller.options, vertical = options.vertical, xOffset = height, yOffset = 0, method = scroller.rendered ? 'animate' : 'attr';
        scroller.x = x;
        scroller.y = y + this.trackBorderWidth;
        scroller.width = width; // width with buttons
        scroller.height = height;
        scroller.xOffset = xOffset;
        scroller.yOffset = yOffset;
        // If Scrollbar is a vertical type, swap options:
        if (vertical) {
            scroller.width = scroller.yOffset = width = yOffset = scroller.size;
            scroller.xOffset = xOffset = 0;
            scroller.barWidth = height - width * 2; // width without buttons
            scroller.x = x = x + scroller.options.margin;
        }
        else {
            scroller.height = scroller.xOffset = height = xOffset =
                scroller.size;
            scroller.barWidth = width - height * 2; // width without buttons
            scroller.y = scroller.y + scroller.options.margin;
        }
        // Set general position for a group:
        scroller.group[method]({
            translateX: x,
            translateY: scroller.y
        });
        // Resize background/track:
        scroller.track[method]({
            width: width,
            height: height
        });
        // Move right/bottom button ot it's place:
        scroller.scrollbarButtons[1][method]({
            translateX: vertical ? 0 : width - xOffset,
            translateY: vertical ? height - yOffset : 0
        });
    },
    /**
     * Draw the scrollbar buttons with arrows
     *
     * @private
     * @function Highcharts.Scrollbar#drawScrollbarButton
     * @param {number} index
     *        0 is left, 1 is right
     * @return {void}
     */
    drawScrollbarButton: function (index) {
        var scroller = this, renderer = scroller.renderer, scrollbarButtons = scroller.scrollbarButtons, options = scroller.options, size = scroller.size, group, tempElem;
        group = renderer.g().add(scroller.group);
        scrollbarButtons.push(group);
        // Create a rectangle for the scrollbar button
        tempElem = renderer.rect()
            .addClass('highcharts-scrollbar-button')
            .add(group);
        // Presentational attributes
        if (!this.chart.styledMode) {
            tempElem.attr({
                stroke: options.buttonBorderColor,
                'stroke-width': options.buttonBorderWidth,
                fill: options.buttonBackgroundColor
            });
        }
        // Place the rectangle based on the rendered stroke width
        tempElem.attr(tempElem.crisp({
            x: -0.5,
            y: -0.5,
            width: size + 1,
            height: size + 1,
            r: options.buttonBorderRadius
        }, tempElem.strokeWidth()));
        // Button arrow
        tempElem = renderer
            .path(swapXY([
            'M',
            size / 2 + (index ? -1 : 1),
            size / 2 - 3,
            'L',
            size / 2 + (index ? -1 : 1),
            size / 2 + 3,
            'L',
            size / 2 + (index ? 2 : -2),
            size / 2
        ], options.vertical))
            .addClass('highcharts-scrollbar-arrow')
            .add(scrollbarButtons[index]);
        if (!this.chart.styledMode) {
            tempElem.attr({
                fill: options.buttonArrowColor
            });
        }
    },
    /**
     * Set scrollbar size, with a given scale.
     *
     * @private
     * @function Highcharts.Scrollbar#setRange
     * @param {number} from
     *        scale (0-1) where bar should start
     * @param {number} to
     *        scale (0-1) where bar should end
     * @return {void}
     */
    setRange: function (from, to) {
        var scroller = this, options = scroller.options, vertical = options.vertical, minWidth = options.minWidth, fullWidth = scroller.barWidth, fromPX, toPX, newPos, newSize, newRiflesPos, method = (this.rendered &&
            !this.hasDragged &&
            !(this.chart.navigator && this.chart.navigator.hasDragged)) ? 'animate' : 'attr';
        if (!defined(fullWidth)) {
            return;
        }
        from = Math.max(from, 0);
        fromPX = Math.ceil(fullWidth * from);
        toPX = fullWidth * Math.min(to, 1);
        scroller.calculatedWidth = newSize = correctFloat(toPX - fromPX);
        // We need to recalculate position, if minWidth is used
        if (newSize < minWidth) {
            fromPX = (fullWidth - minWidth + newSize) * from;
            newSize = minWidth;
        }
        newPos = Math.floor(fromPX + scroller.xOffset + scroller.yOffset);
        newRiflesPos = newSize / 2 - 0.5; // -0.5 -> rifle line width / 2
        // Store current position:
        scroller.from = from;
        scroller.to = to;
        if (!vertical) {
            scroller.scrollbarGroup[method]({
                translateX: newPos
            });
            scroller.scrollbar[method]({
                width: newSize
            });
            scroller.scrollbarRifles[method]({
                translateX: newRiflesPos
            });
            scroller.scrollbarLeft = newPos;
            scroller.scrollbarTop = 0;
        }
        else {
            scroller.scrollbarGroup[method]({
                translateY: newPos
            });
            scroller.scrollbar[method]({
                height: newSize
            });
            scroller.scrollbarRifles[method]({
                translateY: newRiflesPos
            });
            scroller.scrollbarTop = newPos;
            scroller.scrollbarLeft = 0;
        }
        if (newSize <= 12) {
            scroller.scrollbarRifles.hide();
        }
        else {
            scroller.scrollbarRifles.show(true);
        }
        // Show or hide the scrollbar based on the showFull setting
        if (options.showFull === false) {
            if (from <= 0 && to >= 1) {
                scroller.group.hide();
            }
            else {
                scroller.group.show();
            }
        }
        scroller.rendered = true;
    },
    /**
     * Init events methods, so we have an access to the Scrollbar itself
     *
     * @private
     * @function Highcharts.Scrollbar#initEvents
     * @return {void}
     * @fires Highcharts.Scrollbar#event:changed
     */
    initEvents: function () {
        var scroller = this;
        /**
         * Event handler for the mouse move event.
         * @private
         */
        scroller.mouseMoveHandler = function (e) {
            var normalizedEvent = scroller.chart.pointer.normalize(e), options = scroller.options, direction = options.vertical ? 'chartY' : 'chartX', initPositions = scroller.initPositions, scrollPosition, chartPosition, change;
            // In iOS, a mousemove event with e.pageX === 0 is fired when
            // holding the finger down in the center of the scrollbar. This
            // should be ignored.
            if (scroller.grabbedCenter &&
                // #4696, scrollbar failed on Android
                (!e.touches || e.touches[0][direction] !== 0)) {
                chartPosition = scroller.cursorToScrollbarPosition(normalizedEvent)[direction];
                scrollPosition = scroller[direction];
                change = chartPosition - scrollPosition;
                scroller.hasDragged = true;
                scroller.updatePosition(initPositions[0] + change, initPositions[1] + change);
                if (scroller.hasDragged) {
                    fireEvent(scroller, 'changed', {
                        from: scroller.from,
                        to: scroller.to,
                        trigger: 'scrollbar',
                        DOMType: e.type,
                        DOMEvent: e
                    });
                }
            }
        };
        /**
         * Event handler for the mouse up event.
         * @private
         */
        scroller.mouseUpHandler = function (e) {
            if (scroller.hasDragged) {
                fireEvent(scroller, 'changed', {
                    from: scroller.from,
                    to: scroller.to,
                    trigger: 'scrollbar',
                    DOMType: e.type,
                    DOMEvent: e
                });
            }
            scroller.grabbedCenter =
                scroller.hasDragged =
                    scroller.chartX =
                        scroller.chartY = null;
        };
        scroller.mouseDownHandler = function (e) {
            var normalizedEvent = scroller.chart.pointer.normalize(e), mousePosition = scroller.cursorToScrollbarPosition(normalizedEvent);
            scroller.chartX = mousePosition.chartX;
            scroller.chartY = mousePosition.chartY;
            scroller.initPositions = [scroller.from, scroller.to];
            scroller.grabbedCenter = true;
        };
        scroller.buttonToMinClick = function (e) {
            var range = correctFloat(scroller.to - scroller.from) *
                scroller.options.step;
            scroller.updatePosition(correctFloat(scroller.from - range), correctFloat(scroller.to - range));
            fireEvent(scroller, 'changed', {
                from: scroller.from,
                to: scroller.to,
                trigger: 'scrollbar',
                DOMEvent: e
            });
        };
        scroller.buttonToMaxClick = function (e) {
            var range = (scroller.to - scroller.from) * scroller.options.step;
            scroller.updatePosition(scroller.from + range, scroller.to + range);
            fireEvent(scroller, 'changed', {
                from: scroller.from,
                to: scroller.to,
                trigger: 'scrollbar',
                DOMEvent: e
            });
        };
        scroller.trackClick = function (e) {
            var normalizedEvent = scroller.chart.pointer.normalize(e), range = scroller.to - scroller.from, top = scroller.y + scroller.scrollbarTop, left = scroller.x + scroller.scrollbarLeft;
            if ((scroller.options.vertical && normalizedEvent.chartY > top) ||
                (!scroller.options.vertical && normalizedEvent.chartX > left)) {
                // On the top or on the left side of the track:
                scroller.updatePosition(scroller.from + range, scroller.to + range);
            }
            else {
                // On the bottom or the right side of the track:
                scroller.updatePosition(scroller.from - range, scroller.to - range);
            }
            fireEvent(scroller, 'changed', {
                from: scroller.from,
                to: scroller.to,
                trigger: 'scrollbar',
                DOMEvent: e
            });
        };
    },
    /**
     * Get normalized (0-1) cursor position over the scrollbar
     *
     * @private
     * @function Highcharts.Scrollbar#cursorToScrollbarPosition
     *
     * @param  {*} normalizedEvent
     *         normalized event, with chartX and chartY values
     *
     * @return {Highcharts.Dictionary<number>}
     *         Local position {chartX, chartY}
     */
    cursorToScrollbarPosition: function (normalizedEvent) {
        var scroller = this, options = scroller.options, minWidthDifference = options.minWidth > scroller.calculatedWidth ?
            options.minWidth :
            0; // minWidth distorts translation
        return {
            chartX: (normalizedEvent.chartX - scroller.x -
                scroller.xOffset) /
                (scroller.barWidth - minWidthDifference),
            chartY: (normalizedEvent.chartY - scroller.y -
                scroller.yOffset) /
                (scroller.barWidth - minWidthDifference)
        };
    },
    /**
     * Update position option in the Scrollbar, with normalized 0-1 scale
     *
     * @private
     * @function Highcharts.Scrollbar#updatePosition
     * @param  {number} from
     * @param  {number} to
     * @return {void}
     */
    updatePosition: function (from, to) {
        if (to > 1) {
            from = correctFloat(1 - correctFloat(to - from));
            to = 1;
        }
        if (from < 0) {
            to = correctFloat(to - from);
            from = 0;
        }
        this.from = from;
        this.to = to;
    },
    /**
     * Update the scrollbar with new options
     *
     * @private
     * @function Highcharts.Scrollbar#update
     * @param  {Highcharts.ScrollbarOptions} options
     * @return {void}
     */
    update: function (options) {
        this.destroy();
        this.init(this.chart.renderer, merge(true, this.options, options), this.chart);
    },
    /**
     * Set up the mouse and touch events for the Scrollbar
     *
     * @private
     * @function Highcharts.Scrollbar#addEvents
     * @return {void}
     */
    addEvents: function () {
        var buttonsOrder = this.options.inverted ? [1, 0] : [0, 1], buttons = this.scrollbarButtons, bar = this.scrollbarGroup.element, track = this.track.element, mouseDownHandler = this.mouseDownHandler, mouseMoveHandler = this.mouseMoveHandler, mouseUpHandler = this.mouseUpHandler, _events;
        // Mouse events
        _events = [
            [buttons[buttonsOrder[0]].element, 'click', this.buttonToMinClick],
            [buttons[buttonsOrder[1]].element, 'click', this.buttonToMaxClick],
            [track, 'click', this.trackClick],
            [bar, 'mousedown', mouseDownHandler],
            [bar.ownerDocument, 'mousemove', mouseMoveHandler],
            [bar.ownerDocument, 'mouseup', mouseUpHandler]
        ];
        // Touch events
        if (hasTouch) {
            _events.push([bar, 'touchstart', mouseDownHandler], [bar.ownerDocument, 'touchmove', mouseMoveHandler], [bar.ownerDocument, 'touchend', mouseUpHandler]);
        }
        // Add them all
        _events.forEach(function (args) {
            addEvent.apply(null, args);
        });
        this._events = _events;
    },
    /**
     * Removes the event handlers attached previously with addEvents.
     *
     * @private
     * @function Highcharts.Scrollbar#removeEvents
     * @return {void}
     */
    removeEvents: function () {
        this._events.forEach(function (args) {
            removeEvent.apply(null, args);
        });
        this._events.length = 0;
    },
    /**
     * Destroys allocated elements.
     *
     * @private
     * @function Highcharts.Scrollbar#destroy
     * @return {void}
     */
    destroy: function () {
        var scroller = this.chart.scroller;
        // Disconnect events added in addEvents
        this.removeEvents();
        // Destroy properties
        [
            'track',
            'scrollbarRifles',
            'scrollbar',
            'scrollbarGroup',
            'group'
        ].forEach(function (prop) {
            if (this[prop] && this[prop].destroy) {
                this[prop] = this[prop].destroy();
            }
        }, this);
        // #6421, chart may have more scrollbars
        if (scroller && this === scroller.scrollbar) {
            scroller.scrollbar = null;
            // Destroy elements in collection
            destroyObjectProperties(scroller.scrollbarButtons);
        }
    }
};
if (!H.Scrollbar) {
    /* *
     * Wrap axis initialization and create scrollbar if enabled:
     */
    addEvent(Axis, 'afterInit', function () {
        var axis = this;
        if (axis.options &&
            axis.options.scrollbar &&
            axis.options.scrollbar.enabled) {
            // Predefined options:
            axis.options.scrollbar.vertical = !axis.horiz;
            axis.options.startOnTick = axis.options.endOnTick = false;
            axis.scrollbar = new Scrollbar(axis.chart.renderer, axis.options.scrollbar, axis.chart);
            addEvent(axis.scrollbar, 'changed', function (e) {
                var unitedMin = Math.min(pick(axis.options.min, axis.min), axis.min, axis.dataMin), unitedMax = Math.max(pick(axis.options.max, axis.max), axis.max, axis.dataMax), range = unitedMax - unitedMin, to, from;
                if ((axis.horiz && !axis.reversed) ||
                    (!axis.horiz && axis.reversed)) {
                    to = unitedMin + range * this.to;
                    from = unitedMin + range * this.from;
                }
                else {
                    // y-values in browser are reversed, but this also applies
                    // for reversed horizontal axis:
                    to = unitedMin + range * (1 - this.from);
                    from = unitedMin + range * (1 - this.to);
                }
                if (pick(this.options.liveRedraw, H.svg && !H.isTouchDevice && !this.chart.isBoosting) ||
                    // Mouseup always should change extremes
                    e.DOMType === 'mouseup' ||
                    // Internal events
                    !defined(e.DOMType)) {
                    axis.setExtremes(from, to, true, e.DOMType !== 'mousemove', e);
                }
                else {
                    // When live redraw is disabled, don't change extremes
                    // Only change the position of the scollbar thumb
                    this.setRange(this.from, this.to);
                }
            });
        }
    });
    /* *
    * Wrap rendering axis, and update scrollbar if one is created:
    */
    addEvent(Axis, 'afterRender', function () {
        var axis = this, scrollMin = Math.min(pick(axis.options.min, axis.min), axis.min, pick(axis.dataMin, axis.min) // #6930
        ), scrollMax = Math.max(pick(axis.options.max, axis.max), axis.max, pick(axis.dataMax, axis.max) // #6930
        ), scrollbar = axis.scrollbar, offset = axis.axisTitleMargin + (axis.titleOffset || 0), scrollbarsOffsets = axis.chart.scrollbarsOffsets, axisMargin = axis.options.margin || 0, offsetsIndex, from, to;
        if (scrollbar) {
            if (axis.horiz) {
                // Reserve space for labels/title
                if (!axis.opposite) {
                    scrollbarsOffsets[1] += offset;
                }
                scrollbar.position(axis.left, axis.top + axis.height + 2 + scrollbarsOffsets[1] -
                    (axis.opposite ? axisMargin : 0), axis.width, axis.height);
                // Next scrollbar should reserve space for margin (if set)
                if (!axis.opposite) {
                    scrollbarsOffsets[1] += axisMargin;
                }
                offsetsIndex = 1;
            }
            else {
                // Reserve space for labels/title
                if (axis.opposite) {
                    scrollbarsOffsets[0] += offset;
                }
                scrollbar.position(axis.left + axis.width + 2 + scrollbarsOffsets[0] -
                    (axis.opposite ? 0 : axisMargin), axis.top, axis.width, axis.height);
                // Next scrollbar should reserve space for margin (if set)
                if (axis.opposite) {
                    scrollbarsOffsets[0] += axisMargin;
                }
                offsetsIndex = 0;
            }
            scrollbarsOffsets[offsetsIndex] += scrollbar.size +
                scrollbar.options.margin;
            if (isNaN(scrollMin) ||
                isNaN(scrollMax) ||
                !defined(axis.min) ||
                !defined(axis.max) ||
                axis.min === axis.max // #10733
            ) {
                // default action: when extremes are the same or there is not
                // extremes on the axis, but scrollbar exists, make it full size
                scrollbar.setRange(0, 1);
            }
            else {
                from =
                    (axis.min - scrollMin) / (scrollMax - scrollMin);
                to =
                    (axis.max - scrollMin) / (scrollMax - scrollMin);
                if ((axis.horiz && !axis.reversed) ||
                    (!axis.horiz && axis.reversed)) {
                    scrollbar.setRange(from, to);
                }
                else {
                    // inverse vertical axis
                    scrollbar.setRange(1 - to, 1 - from);
                }
            }
        }
    });
    /* *
     * Make space for a scrollbar
     * @private
     */
    addEvent(Axis, 'afterGetOffset', function () {
        var axis = this, index = axis.horiz ? 2 : 1, scrollbar = axis.scrollbar;
        if (scrollbar) {
            axis.chart.scrollbarsOffsets = [0, 0]; // reset scrollbars offsets
            axis.chart.axisOffset[index] +=
                scrollbar.size + scrollbar.options.margin;
        }
    });
    H.Scrollbar = Scrollbar;
}