/* *
 *
 *  (c) 2010-2021 Torstein Honsi
 *
 *  License: www.highcharts.com/license
 *
 *  !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
 *
 * */
'use strict';
import Axis from '../../Core/Axis/Axis.js';
import D from '../../Core/Defaults.js';
const { defaultOptions } = D;
import H from '../../Core/Globals.js';
import RangeSelectorComposition from './RangeSelectorComposition.js';
import SVGElement from '../../Core/Renderer/SVG/SVGElement.js';
import U from '../../Core/Utilities.js';
const { addEvent, createElement, css, defined, destroyObjectProperties, discardElement, extend, fireEvent, isNumber, merge, objectEach, pad, pick, pInt, splat } = U;
/* *
 *
 *  Functions
 *
 * */
/**
 * Get the preferred input type based on a date format string.
 *
 * @private
 * @function preferredInputType
 */
function preferredInputType(format) {
    const ms = format.indexOf('%L') !== -1;
    if (ms) {
        return 'text';
    }
    const date = ['a', 'A', 'd', 'e', 'w', 'b', 'B', 'm', 'o', 'y', 'Y']
        .some((char) => format.indexOf('%' + char) !== -1);
    const time = ['H', 'k', 'I', 'l', 'M', 'S']
        .some((char) => format.indexOf('%' + char) !== -1);
    if (date && time) {
        return 'datetime-local';
    }
    if (date) {
        return 'date';
    }
    if (time) {
        return 'time';
    }
    return 'text';
}
/* *
 *
 *  Class
 *
 * */
/**
 * The range selector.
 *
 * @private
 * @class
 * @name Highcharts.RangeSelector
 * @param {Highcharts.Chart} chart
 */
class RangeSelector {
    /* *
     *
     *  Static Functions
     *
     * */
    /**
     * @private
     */
    static compose(AxisClass, ChartClass) {
        RangeSelectorComposition.compose(AxisClass, ChartClass, RangeSelector);
    }
    /* *
     *
     *  Constructor
     *
     * */
    constructor(chart) {
        /* *
         *
         *  Properties
         *
         * */
        this.buttons = void 0;
        this.buttonOptions = RangeSelector.prototype.defaultButtons;
        this.initialButtonGroupWidth = 0;
        this.options = void 0;
        this.chart = chart;
        this.init(chart);
    }
    /* *
     *
     *  Functions
     *
     * */
    /**
     * The method to run when one of the buttons in the range selectors is
     * clicked
     *
     * @private
     * @function Highcharts.RangeSelector#clickButton
     * @param {number} i
     *        The index of the button
     * @param {boolean} [redraw]
     */
    clickButton(i, redraw) {
        const rangeSelector = this, chart = rangeSelector.chart, rangeOptions = rangeSelector.buttonOptions[i], baseAxis = chart.xAxis[0], unionExtremes = (chart.scroller && chart.scroller.getUnionExtremes()) || baseAxis || {}, type = rangeOptions.type, dataGrouping = rangeOptions.dataGrouping;
        let dataMin = unionExtremes.dataMin, dataMax = unionExtremes.dataMax, newMin, newMax = baseAxis && Math.round(Math.min(baseAxis.max, pick(dataMax, baseAxis.max))), // #1568
        baseXAxisOptions, range = rangeOptions._range, rangeMin, minSetting, rangeSetting, ctx, ytdExtremes, addOffsetMin = true;
        // chart has no data, base series is removed
        if (dataMin === null || dataMax === null) {
            return;
        }
        // Set the fixed range before range is altered
        chart.fixedRange = range;
        rangeSelector.setSelected(i);
        // Apply dataGrouping associated to button
        if (dataGrouping) {
            this.forcedDataGrouping = true;
            Axis.prototype.setDataGrouping.call(baseAxis || { chart: this.chart }, dataGrouping, false);
            this.frozenStates = rangeOptions.preserveDataGrouping;
        }
        // Apply range
        if (type === 'month' || type === 'year') {
            if (!baseAxis) {
                // This is set to the user options and picked up later when the
                // axis is instantiated so that we know the min and max.
                range = rangeOptions;
            }
            else {
                ctx = {
                    range: rangeOptions,
                    max: newMax,
                    chart: chart,
                    dataMin: dataMin,
                    dataMax: dataMax
                };
                newMin = baseAxis.minFromRange.call(ctx);
                if (isNumber(ctx.newMax)) {
                    newMax = ctx.newMax;
                }
                // #15799: offsetMin is added in minFromRange so that it works
                // with pre-selected buttons as well
                addOffsetMin = false;
            }
            // Fixed times like minutes, hours, days
        }
        else if (range) {
            newMin = Math.max(newMax - range, dataMin);
            newMax = Math.min(newMin + range, dataMax);
            addOffsetMin = false;
        }
        else if (type === 'ytd') {
            // On user clicks on the buttons, or a delayed action running from
            // the beforeRender event (below), the baseAxis is defined.
            if (baseAxis) {
                // When "ytd" is the pre-selected button for the initial view,
                // its calculation is delayed and rerun in the beforeRender
                // event (below). When the series are initialized, but before
                // the chart is rendered, we have access to the xData array
                // (#942).
                if (typeof dataMax === 'undefined' ||
                    typeof dataMin === 'undefined') {
                    dataMin = Number.MAX_VALUE;
                    dataMax = Number.MIN_VALUE;
                    chart.series.forEach((series) => {
                        // reassign it to the last item
                        const xData = series.xData;
                        if (xData) {
                            dataMin = Math.min(xData[0], dataMin);
                            dataMax = Math.max(xData[xData.length - 1], dataMax);
                        }
                    });
                    redraw = false;
                }
                ytdExtremes = rangeSelector.getYTDExtremes(dataMax, dataMin, chart.time.useUTC);
                newMin = rangeMin = ytdExtremes.min;
                newMax = ytdExtremes.max;
                // "ytd" is pre-selected. We don't yet have access to processed
                // point and extremes data (things like pointStart and pointInterval
                // are missing), so we delay the process (#942)
            }
            else {
                rangeSelector.deferredYTDClick = i;
                return;
            }
        }
        else if (type === 'all' && baseAxis) {
            // If the navigator exist and the axis range is declared reset that
            // range and from now on only use the range set by a user, #14742.
            if (chart.navigator && chart.navigator.baseSeries[0]) {
                chart.navigator.baseSeries[0].xAxis.options.range = void 0;
            }
            newMin = dataMin;
            newMax = dataMax;
        }
        if (addOffsetMin && rangeOptions._offsetMin && defined(newMin)) {
            newMin += rangeOptions._offsetMin;
        }
        if (rangeOptions._offsetMax && defined(newMax)) {
            newMax += rangeOptions._offsetMax;
        }
        if (this.dropdown) {
            this.dropdown.selectedIndex = i + 1;
        }
        // Update the chart
        if (!baseAxis) {
            // Axis not yet instanciated. Temporarily set min and range
            // options and remove them on chart load (#4317).
            baseXAxisOptions = splat(chart.options.xAxis)[0];
            rangeSetting = baseXAxisOptions.range;
            baseXAxisOptions.range = range;
            minSetting = baseXAxisOptions.min;
            baseXAxisOptions.min = rangeMin;
            addEvent(chart, 'load', function resetMinAndRange() {
                baseXAxisOptions.range = rangeSetting;
                baseXAxisOptions.min = minSetting;
            });
        }
        else {
            // Existing axis object. Set extremes after render time.
            baseAxis.setExtremes(newMin, newMax, pick(redraw, true), void 0, // auto animation
            {
                trigger: 'rangeSelectorButton',
                rangeSelectorButton: rangeOptions
            });
        }
        fireEvent(this, 'afterBtnClick');
    }
    /**
     * Set the selected option. This method only sets the internal flag, it
     * doesn't update the buttons or the actual zoomed range.
     *
     * @private
     * @function Highcharts.RangeSelector#setSelected
     * @param {number} [selected]
     */
    setSelected(selected) {
        this.selected = this.options.selected = selected;
    }
    /**
     * Initialize the range selector
     *
     * @private
     * @function Highcharts.RangeSelector#init
     * @param {Highcharts.Chart} chart
     */
    init(chart) {
        const rangeSelector = this, options = chart.options.rangeSelector, buttonOptions = (options.buttons || rangeSelector.defaultButtons.slice()), selectedOption = options.selected, blurInputs = function () {
            const minInput = rangeSelector.minInput, maxInput = rangeSelector.maxInput;
            // #3274 in some case blur is not defined
            if (minInput && !!minInput.blur) {
                fireEvent(minInput, 'blur');
            }
            if (maxInput && !!maxInput.blur) {
                fireEvent(maxInput, 'blur');
            }
        };
        rangeSelector.chart = chart;
        rangeSelector.options = options;
        rangeSelector.buttons = [];
        rangeSelector.buttonOptions = buttonOptions;
        this.eventsToUnbind = [];
        this.eventsToUnbind.push(addEvent(chart.container, 'mousedown', blurInputs));
        this.eventsToUnbind.push(addEvent(chart, 'resize', blurInputs));
        // Extend the buttonOptions with actual range
        buttonOptions.forEach(rangeSelector.computeButtonRange);
        // zoomed range based on a pre-selected button index
        if (typeof selectedOption !== 'undefined' &&
            buttonOptions[selectedOption]) {
            this.clickButton(selectedOption, false);
        }
        this.eventsToUnbind.push(addEvent(chart, 'load', function () {
            // If a data grouping is applied to the current button, release it
            // when extremes change
            if (chart.xAxis && chart.xAxis[0]) {
                addEvent(chart.xAxis[0], 'setExtremes', function (e) {
                    if (this.max - this.min !==
                        chart.fixedRange &&
                        e.trigger !== 'rangeSelectorButton' &&
                        e.trigger !== 'updatedData' &&
                        rangeSelector.forcedDataGrouping &&
                        !rangeSelector.frozenStates) {
                        this.setDataGrouping(false, false);
                    }
                });
            }
        }));
    }
    /**
     * Dynamically update the range selector buttons after a new range has been
     * set
     *
     * @private
     * @function Highcharts.RangeSelector#updateButtonStates
     */
    updateButtonStates() {
        const rangeSelector = this, chart = this.chart, dropdown = this.dropdown, baseAxis = chart.xAxis[0], actualRange = Math.round(baseAxis.max - baseAxis.min), hasNoData = !baseAxis.hasVisibleSeries, day = 24 * 36e5, // A single day in milliseconds
        unionExtremes = (chart.scroller &&
            chart.scroller.getUnionExtremes()) || baseAxis, dataMin = unionExtremes.dataMin, dataMax = unionExtremes.dataMax, ytdExtremes = rangeSelector.getYTDExtremes(dataMax, dataMin, chart.time.useUTC), ytdMin = ytdExtremes.min, ytdMax = ytdExtremes.max, selected = rangeSelector.selected, allButtonsEnabled = rangeSelector.options.allButtonsEnabled, buttons = rangeSelector.buttons;
        let selectedExists = isNumber(selected);
        rangeSelector.buttonOptions.forEach((rangeOptions, i) => {
            const range = rangeOptions._range, type = rangeOptions.type, count = rangeOptions.count || 1, button = buttons[i], offsetRange = rangeOptions._offsetMax -
                rangeOptions._offsetMin, isSelected = i === selected, 
            // Disable buttons where the range exceeds what is allowed in
            // the current view
            isTooGreatRange = range >
                dataMax - dataMin, 
            // Disable buttons where the range is smaller than the minimum
            // range
            isTooSmallRange = range < baseAxis.minRange;
            let state = 0, 
            // Do not select the YTD button if not explicitly told so
            isYTDButNotSelected = false, 
            // Disable the All button if we're already showing all
            isAllButAlreadyShowingAll = false, isSameRange = range === actualRange;
            // Months and years have a variable range so we check the extremes
            if ((type === 'month' || type === 'year') &&
                (actualRange + 36e5 >=
                    { month: 28, year: 365 }[type] * day * count - offsetRange) &&
                (actualRange - 36e5 <=
                    { month: 31, year: 366 }[type] * day * count + offsetRange)) {
                isSameRange = true;
            }
            else if (type === 'ytd') {
                isSameRange = (ytdMax - ytdMin + offsetRange) === actualRange;
                isYTDButNotSelected = !isSelected;
            }
            else if (type === 'all') {
                isSameRange = (baseAxis.max - baseAxis.min >=
                    dataMax - dataMin);
                isAllButAlreadyShowingAll = (!isSelected &&
                    selectedExists &&
                    isSameRange);
            }
            // The new zoom area happens to match the range for a button - mark
            // it selected. This happens when scrolling across an ordinal gap.
            // It can be seen in the intraday demos when selecting 1h and scroll
            // across the night gap.
            const disable = (!allButtonsEnabled &&
                (isTooGreatRange ||
                    isTooSmallRange ||
                    isAllButAlreadyShowingAll ||
                    hasNoData));
            const select = ((isSelected && isSameRange) ||
                (isSameRange && !selectedExists && !isYTDButNotSelected) ||
                (isSelected && rangeSelector.frozenStates));
            if (disable) {
                state = 3;
            }
            else if (select) {
                selectedExists = true; // Only one button can be selected
                state = 2;
            }
            // If state has changed, update the button
            if (button.state !== state) {
                button.setState(state);
                if (dropdown) {
                    dropdown.options[i + 1].disabled = disable;
                    if (state === 2) {
                        dropdown.selectedIndex = i + 1;
                    }
                }
                // Reset (#9209)
                if (state === 0 && selected === i) {
                    rangeSelector.setSelected();
                }
            }
        });
    }
    /**
     * Compute and cache the range for an individual button
     *
     * @private
     * @function Highcharts.RangeSelector#computeButtonRange
     * @param {Highcharts.RangeSelectorButtonsOptions} rangeOptions
     */
    computeButtonRange(rangeOptions) {
        const type = rangeOptions.type, count = rangeOptions.count || 1, 
        // these time intervals have a fixed number of milliseconds, as
        // opposed to month, ytd and year
        fixedTimes = {
            millisecond: 1,
            second: 1000,
            minute: 60 * 1000,
            hour: 3600 * 1000,
            day: 24 * 3600 * 1000,
            week: 7 * 24 * 3600 * 1000
        };
        // Store the range on the button object
        if (fixedTimes[type]) {
            rangeOptions._range = fixedTimes[type] * count;
        }
        else if (type === 'month' || type === 'year') {
            rangeOptions._range = {
                month: 30,
                year: 365
            }[type] * 24 * 36e5 * count;
        }
        rangeOptions._offsetMin = pick(rangeOptions.offsetMin, 0);
        rangeOptions._offsetMax = pick(rangeOptions.offsetMax, 0);
        rangeOptions._range +=
            rangeOptions._offsetMax - rangeOptions._offsetMin;
    }
    /**
     * Get the unix timestamp of a HTML input for the dates
     *
     * @private
     * @function Highcharts.RangeSelector#getInputValue
     */
    getInputValue(name) {
        const input = name === 'min' ? this.minInput : this.maxInput;
        const options = this.chart.options
            .rangeSelector;
        const time = this.chart.time;
        if (input) {
            return ((input.type === 'text' && options.inputDateParser) ||
                this.defaultInputDateParser)(input.value, time.useUTC, time);
        }
        return 0;
    }
    /**
     * Set the internal and displayed value of a HTML input for the dates
     *
     * @private
     * @function Highcharts.RangeSelector#setInputValue
     */
    setInputValue(name, inputTime) {
        const options = this.options, time = this.chart.time, input = name === 'min' ? this.minInput : this.maxInput, dateBox = name === 'min' ? this.minDateBox : this.maxDateBox;
        if (input) {
            const hcTimeAttr = input.getAttribute('data-hc-time');
            let updatedTime = defined(hcTimeAttr) ? Number(hcTimeAttr) : void 0;
            if (defined(inputTime)) {
                const previousTime = updatedTime;
                if (defined(previousTime)) {
                    input.setAttribute('data-hc-time-previous', previousTime);
                }
                input.setAttribute('data-hc-time', inputTime);
                updatedTime = inputTime;
            }
            input.value = time.dateFormat((this.inputTypeFormats[input.type] ||
                options.inputEditDateFormat), updatedTime);
            if (dateBox) {
                dateBox.attr({
                    text: time.dateFormat(options.inputDateFormat, updatedTime)
                });
            }
        }
    }
    /**
     * Set the min and max value of a HTML input for the dates
     *
     * @private
     * @function Highcharts.RangeSelector#setInputExtremes
     */
    setInputExtremes(name, min, max) {
        const input = name === 'min' ? this.minInput : this.maxInput;
        if (input) {
            const format = this.inputTypeFormats[input.type];
            const time = this.chart.time;
            if (format) {
                const newMin = time.dateFormat(format, min);
                if (input.min !== newMin) {
                    input.min = newMin;
                }
                const newMax = time.dateFormat(format, max);
                if (input.max !== newMax) {
                    input.max = newMax;
                }
            }
        }
    }
    /**
     * @private
     * @function Highcharts.RangeSelector#showInput
     * @param {string} name
     */
    showInput(name) {
        const dateBox = name === 'min' ? this.minDateBox : this.maxDateBox, input = name === 'min' ? this.minInput : this.maxInput;
        if (input && dateBox && this.inputGroup) {
            const isTextInput = input.type === 'text', { translateX = 0, translateY = 0 } = this.inputGroup, { x = 0, width = 0, height = 0 } = dateBox, { inputBoxWidth } = this.options;
            css(input, {
                width: isTextInput ?
                    ((width + (inputBoxWidth ? -2 : 20)) + 'px') :
                    'auto',
                height: (height - 2) + 'px',
                border: '2px solid silver'
            });
            if (isTextInput && inputBoxWidth) {
                css(input, {
                    left: (translateX + x) + 'px',
                    top: translateY + 'px'
                });
                // Inputs of types date, time or datetime-local should be centered
                // on top of the dateBox
            }
            else {
                css(input, {
                    left: Math.min(Math.round(x +
                        translateX -
                        (input.offsetWidth - width) / 2), this.chart.chartWidth - input.offsetWidth) + 'px',
                    top: (translateY - (input.offsetHeight - height) / 2) + 'px'
                });
            }
        }
    }
    /**
     * @private
     * @function Highcharts.RangeSelector#hideInput
     * @param {string} name
     */
    hideInput(name) {
        const input = name === 'min' ? this.minInput : this.maxInput;
        if (input) {
            css(input, {
                top: '-9999em',
                border: 0,
                width: '1px',
                height: '1px'
            });
        }
    }
    /**
     * @private
     * @function Highcharts.RangeSelector#defaultInputDateParser
     */
    defaultInputDateParser(inputDate, useUTC, time) {
        const hasTimezone = (str) => str.length > 6 &&
            (str.lastIndexOf('-') === str.length - 6 ||
                str.lastIndexOf('+') === str.length - 6);
        let input = inputDate.split('/').join('-').split(' ').join('T');
        if (input.indexOf('T') === -1) {
            input += 'T00:00';
        }
        if (useUTC) {
            input += 'Z';
        }
        else if (H.isSafari && !hasTimezone(input)) {
            const offset = new Date(input).getTimezoneOffset() / 60;
            input += offset <= 0 ? `+${pad(-offset)}:00` : `-${pad(offset)}:00`;
        }
        let date = Date.parse(input);
        // If the value isn't parsed directly to a value by the
        // browser's Date.parse method, try
        // parsing it a different way
        if (!isNumber(date)) {
            const parts = inputDate.split('-');
            date = Date.UTC(pInt(parts[0]), pInt(parts[1]) - 1, pInt(parts[2]));
        }
        if (time && useUTC && isNumber(date)) {
            date += time.getTimezoneOffset(date);
        }
        return date;
    }
    /**
     * Draw either the 'from' or the 'to' HTML input box of the range selector
     *
     * @private
     * @function Highcharts.RangeSelector#drawInput
     */
    drawInput(name) {
        const { chart, div, inputGroup } = this;
        const rangeSelector = this, chartStyle = chart.renderer.style || {}, renderer = chart.renderer, options = chart.options.rangeSelector, lang = defaultOptions.lang, isMin = name === 'min';
        /**
         * @private
         */
        function updateExtremes() {
            const { maxInput, minInput } = rangeSelector, chartAxis = chart.xAxis[0], unionExtremes = (chart.scroller && chart.scroller.getUnionExtremes()) || chartAxis, dataMin = unionExtremes.dataMin, dataMax = unionExtremes.dataMax;
            let value = rangeSelector.getInputValue(name);
            if (value !== Number(input.getAttribute('data-hc-time-previous')) &&
                isNumber(value)) {
                input.setAttribute('data-hc-time-previous', value);
                // Validate the extremes. If it goes beyound the data min or
                // max, use the actual data extreme (#2438).
                if (isMin && maxInput && isNumber(dataMin)) {
                    if (value > Number(maxInput.getAttribute('data-hc-time'))) {
                        value = void 0;
                    }
                    else if (value < dataMin) {
                        value = dataMin;
                    }
                }
                else if (minInput && isNumber(dataMax)) {
                    if (value < Number(minInput.getAttribute('data-hc-time'))) {
                        value = void 0;
                    }
                    else if (value > dataMax) {
                        value = dataMax;
                    }
                }
                // Set the extremes
                if (typeof value !== 'undefined') { // @todo typof undefined
                    chartAxis.setExtremes(isMin ? value : chartAxis.min, isMin ? chartAxis.max : value, void 0, void 0, { trigger: 'rangeSelectorInput' });
                }
            }
        }
        // Create the text label
        const text = lang[isMin ? 'rangeSelectorFrom' : 'rangeSelectorTo'] || '';
        const label = renderer
            .label(text, 0)
            .addClass('highcharts-range-label')
            .attr({
            padding: text ? 2 : 0,
            height: text ? options.inputBoxHeight : 0
        })
            .add(inputGroup);
        // Create an SVG label that shows updated date ranges and and records
        // click events that bring in the HTML input.
        const dateBox = renderer
            .label('', 0)
            .addClass('highcharts-range-input')
            .attr({
            padding: 2,
            width: options.inputBoxWidth,
            height: options.inputBoxHeight,
            'text-align': 'center'
        })
            .on('click', function () {
            // If it is already focused, the onfocus event doesn't fire
            // (#3713)
            rangeSelector.showInput(name);
            rangeSelector[name + 'Input'].focus();
        });
        if (!chart.styledMode) {
            dateBox.attr({
                stroke: options.inputBoxBorderColor,
                'stroke-width': 1
            });
        }
        dateBox.add(inputGroup);
        // Create the HTML input element. This is rendered as 1x1 pixel then set
        // to the right size when focused.
        const input = createElement('input', {
            name: name,
            className: 'highcharts-range-selector'
        }, void 0, div);
        // #14788: Setting input.type to an unsupported type throws in IE, so
        // we need to use setAttribute instead
        input.setAttribute('type', preferredInputType(options.inputDateFormat || '%e %b %Y'));
        if (!chart.styledMode) {
            // Styles
            label.css(merge(chartStyle, options.labelStyle));
            dateBox.css(merge({
                color: "#333333" /* Palette.neutralColor80 */
            }, chartStyle, options.inputStyle));
            css(input, extend({
                position: 'absolute',
                border: 0,
                boxShadow: '0 0 15px rgba(0,0,0,0.3)',
                width: '1px',
                height: '1px',
                padding: 0,
                textAlign: 'center',
                fontSize: chartStyle.fontSize,
                fontFamily: chartStyle.fontFamily,
                top: '-9999em' // #4798
            }, options.inputStyle));
        }
        // Blow up the input box
        input.onfocus = () => {
            rangeSelector.showInput(name);
        };
        // Hide away the input box
        input.onblur = () => {
            // update extermes only when inputs are active
            if (input === H.doc.activeElement) { // Only when focused
                // Update also when no `change` event is triggered, like when
                // clicking inside the SVG (#4710)
                updateExtremes();
            }
            // #10404 - move hide and blur outside focus
            rangeSelector.hideInput(name);
            rangeSelector.setInputValue(name);
            input.blur(); // #4606
        };
        let keyDown = false;
        // handle changes in the input boxes
        input.onchange = () => {
            // Update extremes and blur input when clicking date input calendar
            if (!keyDown) {
                updateExtremes();
                rangeSelector.hideInput(name);
                input.blur();
            }
        };
        input.onkeypress = (event) => {
            // IE does not fire onchange on enter
            if (event.keyCode === 13) {
                updateExtremes();
            }
        };
        input.onkeydown = (event) => {
            keyDown = true;
            // Arrow keys
            if (event.keyCode === 38 || event.keyCode === 40) {
                updateExtremes();
            }
        };
        input.onkeyup = () => {
            keyDown = false;
        };
        return { dateBox, input, label };
    }
    /**
     * Get the position of the range selector buttons and inputs. This can be
     * overridden from outside for custom positioning.
     *
     * @private
     * @function Highcharts.RangeSelector#getPosition
     */
    getPosition() {
        const chart = this.chart, options = chart.options.rangeSelector, top = options.verticalAlign === 'top' ?
            chart.plotTop - chart.axisOffset[0] :
            0; // set offset only for varticalAlign top
        return {
            buttonTop: top + options.buttonPosition.y,
            inputTop: top + options.inputPosition.y - 10
        };
    }
    /**
     * Get the extremes of YTD. Will choose dataMax if its value is lower than
     * the current timestamp. Will choose dataMin if its value is higher than
     * the timestamp for the start of current year.
     *
     * @private
     * @function Highcharts.RangeSelector#getYTDExtremes
     * @return {*}
     * Returns min and max for the YTD
     */
    getYTDExtremes(dataMax, dataMin, useUTC) {
        const time = this.chart.time, now = new time.Date(dataMax), year = time.get('FullYear', now), startOfYear = useUTC ?
            time.Date.UTC(year, 0, 1) : // eslint-disable-line new-cap
            +new time.Date(year, 0, 1), min = Math.max(dataMin, startOfYear), ts = now.getTime();
        return {
            max: Math.min(dataMax || ts, ts),
            min
        };
    }
    /**
     * Render the range selector including the buttons and the inputs. The first
     * time render is called, the elements are created and positioned. On
     * subsequent calls, they are moved and updated.
     *
     * @private
     * @function Highcharts.RangeSelector#render
     * @param {number} [min]
     *        X axis minimum
     * @param {number} [max]
     *        X axis maximum
     */
    render(min, max) {
        const chart = this.chart, renderer = chart.renderer, container = chart.container, chartOptions = chart.options, options = chartOptions.rangeSelector, 
        // Place inputs above the container
        inputsZIndex = pick(chartOptions.chart.style &&
            chartOptions.chart.style.zIndex, 0) + 1, inputEnabled = options.inputEnabled, rendered = this.rendered;
        if (options.enabled === false) {
            return;
        }
        // create the elements
        if (!rendered) {
            this.group = renderer.g('range-selector-group')
                .attr({
                zIndex: 7
            })
                .add();
            this.div = createElement('div', void 0, {
                position: 'relative',
                height: 0,
                zIndex: inputsZIndex
            });
            if (this.buttonOptions.length) {
                this.renderButtons();
            }
            // First create a wrapper outside the container in order to make
            // the inputs work and make export correct
            if (container.parentNode) {
                container.parentNode.insertBefore(this.div, container);
            }
            if (inputEnabled) {
                // Create the group to keep the inputs
                this.inputGroup = renderer.g('input-group').add(this.group);
                const minElems = this.drawInput('min');
                this.minDateBox = minElems.dateBox;
                this.minLabel = minElems.label;
                this.minInput = minElems.input;
                const maxElems = this.drawInput('max');
                this.maxDateBox = maxElems.dateBox;
                this.maxLabel = maxElems.label;
                this.maxInput = maxElems.input;
            }
        }
        if (inputEnabled) {
            // Set or reset the input values
            this.setInputValue('min', min);
            this.setInputValue('max', max);
            const unionExtremes = (chart.scroller && chart.scroller.getUnionExtremes()) || chart.xAxis[0] || {};
            if (defined(unionExtremes.dataMin) &&
                defined(unionExtremes.dataMax)) {
                const minRange = chart.xAxis[0].minRange || 0;
                this.setInputExtremes('min', unionExtremes.dataMin, Math.min(unionExtremes.dataMax, this.getInputValue('max')) - minRange);
                this.setInputExtremes('max', Math.max(unionExtremes.dataMin, this.getInputValue('min')) + minRange, unionExtremes.dataMax);
            }
            // Reflow
            if (this.inputGroup) {
                let x = 0;
                [
                    this.minLabel,
                    this.minDateBox,
                    this.maxLabel,
                    this.maxDateBox
                ].forEach((label) => {
                    if (label) {
                        const { width } = label.getBBox();
                        if (width) {
                            label.attr({ x });
                            x += width + options.inputSpacing;
                        }
                    }
                });
            }
        }
        this.alignElements();
        this.rendered = true;
    }
    /**
     * Render the range buttons. This only runs the first time, later the
     * positioning is laid out in alignElements.
     *
     * @private
     * @function Highcharts.RangeSelector#renderButtons
     */
    renderButtons() {
        const { buttons, chart, options } = this;
        const lang = defaultOptions.lang;
        const renderer = chart.renderer;
        const buttonTheme = merge(options.buttonTheme);
        const states = buttonTheme && buttonTheme.states;
        // Prevent the button from resetting the width when the button state
        // changes since we need more control over the width when collapsing
        // the buttons
        const width = buttonTheme.width || 28;
        delete buttonTheme.width;
        delete buttonTheme.states;
        this.buttonGroup = renderer.g('range-selector-buttons').add(this.group);
        const dropdown = this.dropdown = createElement('select', void 0, {
            position: 'absolute',
            width: '1px',
            height: '1px',
            padding: 0,
            border: 0,
            top: '-9999em',
            cursor: 'pointer',
            opacity: 0.0001
        }, this.div);
        // Prevent page zoom on iPhone
        addEvent(dropdown, 'touchstart', () => {
            dropdown.style.fontSize = '16px';
        });
        // Forward events from select to button
        [
            [H.isMS ? 'mouseover' : 'mouseenter'],
            [H.isMS ? 'mouseout' : 'mouseleave'],
            ['change', 'click']
        ].forEach(([from, to]) => {
            addEvent(dropdown, from, () => {
                const button = buttons[this.currentButtonIndex()];
                if (button) {
                    fireEvent(button.element, to || from);
                }
            });
        });
        this.zoomText = renderer
            .label((lang && lang.rangeSelectorZoom) || '', 0)
            .attr({
            padding: options.buttonTheme.padding,
            height: options.buttonTheme.height,
            paddingLeft: 0,
            paddingRight: 0
        })
            .add(this.buttonGroup);
        if (!this.chart.styledMode) {
            this.zoomText.css(options.labelStyle);
            buttonTheme['stroke-width'] = pick(buttonTheme['stroke-width'], 0);
        }
        createElement('option', {
            textContent: this.zoomText.textStr,
            disabled: true
        }, void 0, dropdown);
        this.buttonOptions.forEach((rangeOptions, i) => {
            createElement('option', {
                textContent: rangeOptions.title || rangeOptions.text
            }, void 0, dropdown);
            buttons[i] = renderer
                .button(rangeOptions.text, 0, 0, (e) => {
                // extract events from button object and call
                const buttonEvents = (rangeOptions.events && rangeOptions.events.click);
                let callDefaultEvent;
                if (buttonEvents) {
                    callDefaultEvent =
                        buttonEvents.call(rangeOptions, e);
                }
                if (callDefaultEvent !== false) {
                    this.clickButton(i);
                }
                this.isActive = true;
            }, buttonTheme, states && states.hover, states && states.select, states && states.disabled)
                .attr({
                'text-align': 'center',
                width
            })
                .add(this.buttonGroup);
            if (rangeOptions.title) {
                buttons[i].attr('title', rangeOptions.title);
            }
        });
    }
    /**
     * Align the elements horizontally and vertically.
     *
     * @private
     * @function Highcharts.RangeSelector#alignElements
     */
    alignElements() {
        const { buttonGroup, buttons, chart, group, inputGroup, options, zoomText } = this;
        const chartOptions = chart.options;
        const navButtonOptions = (chartOptions.exporting &&
            chartOptions.exporting.enabled !== false &&
            chartOptions.navigation &&
            chartOptions.navigation.buttonOptions);
        const { buttonPosition, inputPosition, verticalAlign } = options;
        // Get the X offset required to avoid overlapping with the exporting
        // button. This is is used both by the buttonGroup and the inputGroup.
        const getXOffsetForExportButton = (group, position) => {
            if (navButtonOptions &&
                this.titleCollision(chart) &&
                verticalAlign === 'top' &&
                position.align === 'right' && ((position.y -
                group.getBBox().height - 12) <
                ((navButtonOptions.y || 0) +
                    (navButtonOptions.height || 0) +
                    chart.spacing[0]))) {
                return -40;
            }
            return 0;
        };
        let plotLeft = chart.plotLeft;
        if (group && buttonPosition && inputPosition) {
            let translateX = buttonPosition.x - chart.spacing[3];
            if (buttonGroup) {
                this.positionButtons();
                if (!this.initialButtonGroupWidth) {
                    let width = 0;
                    if (zoomText) {
                        width += zoomText.getBBox().width + 5;
                    }
                    buttons.forEach((button, i) => {
                        width += button.width || 0;
                        if (i !== buttons.length - 1) {
                            width += options.buttonSpacing;
                        }
                    });
                    this.initialButtonGroupWidth = width;
                }
                plotLeft -= chart.spacing[3];
                this.updateButtonStates();
                // Detect collision between button group and exporting
                const xOffsetForExportButton = getXOffsetForExportButton(buttonGroup, buttonPosition);
                this.alignButtonGroup(xOffsetForExportButton);
                // Skip animation
                group.placed = buttonGroup.placed = chart.hasLoaded;
            }
            let xOffsetForExportButton = 0;
            if (inputGroup) {
                // Detect collision between the input group and exporting button
                xOffsetForExportButton = getXOffsetForExportButton(inputGroup, inputPosition);
                if (inputPosition.align === 'left') {
                    translateX = plotLeft;
                }
                else if (inputPosition.align === 'right') {
                    translateX = -Math.max(chart.axisOffset[1], -xOffsetForExportButton);
                }
                // Update the alignment to the updated spacing box
                inputGroup.align({
                    y: inputPosition.y,
                    width: inputGroup.getBBox().width,
                    align: inputPosition.align,
                    // fix wrong getBBox() value on right align
                    x: inputPosition.x + translateX - 2
                }, true, chart.spacingBox);
                // Skip animation
                inputGroup.placed = chart.hasLoaded;
            }
            this.handleCollision(xOffsetForExportButton);
            // Vertical align
            group.align({
                verticalAlign
            }, true, chart.spacingBox);
            const alignTranslateY = group.alignAttr.translateY;
            // Set position
            let groupHeight = group.getBBox().height + 20; // # 20 padding
            let translateY = 0;
            // Calculate bottom position
            if (verticalAlign === 'bottom') {
                const legendOptions = chart.legend && chart.legend.options;
                const legendHeight = (legendOptions &&
                    legendOptions.verticalAlign === 'bottom' &&
                    legendOptions.enabled &&
                    !legendOptions.floating ?
                    (chart.legend.legendHeight +
                        pick(legendOptions.margin, 10)) :
                    0);
                groupHeight = groupHeight + legendHeight - 20;
                translateY = (alignTranslateY -
                    groupHeight -
                    (options.floating ? 0 : options.y) -
                    (chart.titleOffset ? chart.titleOffset[2] : 0) -
                    10 // 10 spacing
                );
            }
            if (verticalAlign === 'top') {
                if (options.floating) {
                    translateY = 0;
                }
                if (chart.titleOffset && chart.titleOffset[0]) {
                    translateY = chart.titleOffset[0];
                }
                translateY += ((chart.margin[0] - chart.spacing[0]) || 0);
            }
            else if (verticalAlign === 'middle') {
                if (inputPosition.y === buttonPosition.y) {
                    translateY = alignTranslateY;
                }
                else if (inputPosition.y || buttonPosition.y) {
                    if (inputPosition.y < 0 ||
                        buttonPosition.y < 0) {
                        translateY -= Math.min(inputPosition.y, buttonPosition.y);
                    }
                    else {
                        translateY = alignTranslateY - groupHeight;
                    }
                }
            }
            group.translate(options.x, options.y + Math.floor(translateY));
            // Translate HTML inputs
            const { minInput, maxInput, dropdown } = this;
            if (options.inputEnabled && minInput && maxInput) {
                minInput.style.marginTop = group.translateY + 'px';
                maxInput.style.marginTop = group.translateY + 'px';
            }
            if (dropdown) {
                dropdown.style.marginTop = group.translateY + 'px';
            }
        }
    }
    /**
     * Align the button group horizontally and vertically.
     *
     * @private
     * @function Highcharts.RangeSelector#alignButtonGroup
     * @param {number} xOffsetForExportButton
     * @param {number} [width]
     */
    alignButtonGroup(xOffsetForExportButton, width) {
        const { chart, options, buttonGroup, buttons } = this;
        const { buttonPosition } = options;
        const plotLeft = chart.plotLeft - chart.spacing[3];
        let translateX = buttonPosition.x - chart.spacing[3];
        if (buttonPosition.align === 'right') {
            translateX += xOffsetForExportButton - plotLeft; // #13014
        }
        else if (buttonPosition.align === 'center') {
            translateX -= plotLeft / 2;
        }
        if (buttonGroup) {
            // Align button group
            buttonGroup.align({
                y: buttonPosition.y,
                width: pick(width, this.initialButtonGroupWidth),
                align: buttonPosition.align,
                x: translateX
            }, true, chart.spacingBox);
        }
    }
    /**
     * @private
     * @function Highcharts.RangeSelector#positionButtons
     */
    positionButtons() {
        const { buttons, chart, options, zoomText } = this;
        const verb = chart.hasLoaded ? 'animate' : 'attr';
        const { buttonPosition } = options;
        const plotLeft = chart.plotLeft;
        let buttonLeft = plotLeft;
        if (zoomText && zoomText.visibility !== 'hidden') {
            // #8769, allow dynamically updating margins
            zoomText[verb]({
                x: pick(plotLeft + buttonPosition.x, plotLeft)
            });
            // Button start position
            buttonLeft += buttonPosition.x +
                zoomText.getBBox().width + 5;
        }
        for (let i = 0, iEnd = this.buttonOptions.length; i < iEnd; ++i) {
            if (buttons[i].visibility !== 'hidden') {
                buttons[i][verb]({ x: buttonLeft });
                // Increase the button position for the next button
                buttonLeft += (buttons[i].width || 0) + options.buttonSpacing;
            }
            else {
                buttons[i][verb]({ x: plotLeft });
            }
        }
    }
    /**
     * Handle collision between the button group and the input group
     *
     * @private
     * @function Highcharts.RangeSelector#handleCollision
     *
     * @param  {number} xOffsetForExportButton
     *                  The X offset of the group required to make room for the
     *                  exporting button
     */
    handleCollision(xOffsetForExportButton) {
        const { chart, buttonGroup, inputGroup } = this;
        const { buttonPosition, dropdown, inputPosition } = this.options;
        const maxButtonWidth = () => {
            let buttonWidth = 0;
            this.buttons.forEach((button) => {
                const bBox = button.getBBox();
                if (bBox.width > buttonWidth) {
                    buttonWidth = bBox.width;
                }
            });
            return buttonWidth;
        };
        const groupsOverlap = (buttonGroupWidth) => {
            if (inputGroup && buttonGroup) {
                const inputGroupX = (inputGroup.alignAttr.translateX +
                    inputGroup.alignOptions.x -
                    xOffsetForExportButton +
                    // getBBox for detecing left margin
                    inputGroup.getBBox().x +
                    // 2px padding to not overlap input and label
                    2);
                const inputGroupWidth = inputGroup.alignOptions.width;
                const buttonGroupX = buttonGroup.alignAttr.translateX +
                    buttonGroup.getBBox().x;
                return (buttonGroupX + buttonGroupWidth > inputGroupX) &&
                    (inputGroupX + inputGroupWidth > buttonGroupX) &&
                    (buttonPosition.y <
                        (inputPosition.y +
                            inputGroup.getBBox().height));
            }
            return false;
        };
        const moveInputsDown = () => {
            if (inputGroup && buttonGroup) {
                inputGroup.attr({
                    translateX: inputGroup.alignAttr.translateX + (chart.axisOffset[1] >= -xOffsetForExportButton ?
                        0 :
                        -xOffsetForExportButton),
                    translateY: inputGroup.alignAttr.translateY +
                        buttonGroup.getBBox().height + 10
                });
            }
        };
        if (buttonGroup) {
            if (dropdown === 'always') {
                this.collapseButtons(xOffsetForExportButton);
                if (groupsOverlap(maxButtonWidth())) {
                    // Move the inputs down if there is still a collision
                    // after collapsing the buttons
                    moveInputsDown();
                }
                return;
            }
            if (dropdown === 'never') {
                this.expandButtons();
            }
        }
        // Detect collision
        if (inputGroup && buttonGroup) {
            if ((inputPosition.align === buttonPosition.align) ||
                // 20 is minimal spacing between elements
                groupsOverlap(this.initialButtonGroupWidth + 20)) {
                if (dropdown === 'responsive') {
                    this.collapseButtons(xOffsetForExportButton);
                    if (groupsOverlap(maxButtonWidth())) {
                        moveInputsDown();
                    }
                }
                else {
                    moveInputsDown();
                }
            }
            else if (dropdown === 'responsive') {
                this.expandButtons();
            }
        }
        else if (buttonGroup && dropdown === 'responsive') {
            if (this.initialButtonGroupWidth > chart.plotWidth) {
                this.collapseButtons(xOffsetForExportButton);
            }
            else {
                this.expandButtons();
            }
        }
    }
    /**
     * Collapse the buttons and put the select element on top.
     *
     * @private
     * @function Highcharts.RangeSelector#collapseButtons
     * @param {number} xOffsetForExportButton
     */
    collapseButtons(xOffsetForExportButton) {
        const { buttons, buttonOptions, chart, dropdown, options, zoomText } = this;
        const userButtonTheme = (chart.userOptions.rangeSelector &&
            chart.userOptions.rangeSelector.buttonTheme) || {};
        const getAttribs = (text) => ({
            text: text ? `${text} ▾` : '▾',
            width: 'auto',
            paddingLeft: pick(options.buttonTheme.paddingLeft, userButtonTheme.padding, 8),
            paddingRight: pick(options.buttonTheme.paddingRight, userButtonTheme.padding, 8)
        });
        if (zoomText) {
            zoomText.hide();
        }
        let hasActiveButton = false;
        buttonOptions.forEach((rangeOptions, i) => {
            const button = buttons[i];
            if (button.state !== 2) {
                button.hide();
            }
            else {
                button.show();
                button.attr(getAttribs(rangeOptions.text));
                hasActiveButton = true;
            }
        });
        if (!hasActiveButton) {
            if (dropdown) {
                dropdown.selectedIndex = 0;
            }
            buttons[0].show();
            buttons[0].attr(getAttribs(this.zoomText && this.zoomText.textStr));
        }
        const { align } = options.buttonPosition;
        this.positionButtons();
        if (align === 'right' || align === 'center') {
            this.alignButtonGroup(xOffsetForExportButton, buttons[this.currentButtonIndex()].getBBox().width);
        }
        this.showDropdown();
    }
    /**
     * Show all the buttons and hide the select element.
     *
     * @private
     * @function Highcharts.RangeSelector#expandButtons
     */
    expandButtons() {
        const { buttons, buttonOptions, options, zoomText } = this;
        this.hideDropdown();
        if (zoomText) {
            zoomText.show();
        }
        buttonOptions.forEach((rangeOptions, i) => {
            const button = buttons[i];
            button.show();
            button.attr({
                text: rangeOptions.text,
                width: options.buttonTheme.width || 28,
                paddingLeft: pick(options.buttonTheme.paddingLeft, 'unset'),
                paddingRight: pick(options.buttonTheme.paddingRight, 'unset')
            });
            if (button.state < 2) {
                button.setState(0);
            }
        });
        this.positionButtons();
    }
    /**
     * Get the index of the visible button when the buttons are collapsed.
     *
     * @private
     * @function Highcharts.RangeSelector#currentButtonIndex
     */
    currentButtonIndex() {
        const { dropdown } = this;
        if (dropdown && dropdown.selectedIndex > 0) {
            return dropdown.selectedIndex - 1;
        }
        return 0;
    }
    /**
     * Position the select element on top of the button.
     *
     * @private
     * @function Highcharts.RangeSelector#showDropdown
     */
    showDropdown() {
        const { buttonGroup, buttons, chart, dropdown } = this;
        if (buttonGroup && dropdown) {
            const { translateX = 0, translateY = 0 } = buttonGroup, bBox = buttons[this.currentButtonIndex()].getBBox();
            css(dropdown, {
                left: (chart.plotLeft + translateX) + 'px',
                top: (translateY + 0.5) + 'px',
                width: bBox.width + 'px',
                height: bBox.height + 'px'
            });
            this.hasVisibleDropdown = true;
        }
    }
    /**
     * @private
     * @function Highcharts.RangeSelector#hideDropdown
     */
    hideDropdown() {
        const { dropdown } = this;
        if (dropdown) {
            css(dropdown, {
                top: '-9999em',
                width: '1px',
                height: '1px'
            });
            this.hasVisibleDropdown = false;
        }
    }
    /**
     * Extracts height of range selector
     *
     * @private
     * @function Highcharts.RangeSelector#getHeight
     * @return {number}
     * Returns rangeSelector height
     */
    getHeight() {
        const rangeSelector = this, options = rangeSelector.options, rangeSelectorGroup = rangeSelector.group, inputPosition = options.inputPosition, buttonPosition = options.buttonPosition, yPosition = options.y, buttonPositionY = buttonPosition.y, inputPositionY = inputPosition.y;
        let rangeSelectorHeight = 0;
        if (options.height) {
            return options.height;
        }
        // Align the elements before we read the height in case we're switching
        // between wrapped and non-wrapped layout
        this.alignElements();
        rangeSelectorHeight = rangeSelectorGroup ?
            // 13px to keep back compatibility
            (rangeSelectorGroup.getBBox(true).height) + 13 +
                yPosition :
            0;
        const minPosition = Math.min(inputPositionY, buttonPositionY);
        if ((inputPositionY < 0 && buttonPositionY < 0) ||
            (inputPositionY > 0 && buttonPositionY > 0)) {
            rangeSelectorHeight += Math.abs(minPosition);
        }
        return rangeSelectorHeight;
    }
    /**
     * Detect collision with title or subtitle
     *
     * @private
     * @function Highcharts.RangeSelector#titleCollision
     * @return {boolean}
     * Returns collision status
     */
    titleCollision(chart) {
        return !(chart.options.title.text ||
            chart.options.subtitle.text);
    }
    /**
     * Update the range selector with new options
     *
     * @private
     * @function Highcharts.RangeSelector#update
     * @param {Highcharts.RangeSelectorOptions} options
     */
    update(options) {
        const chart = this.chart;
        merge(true, chart.options.rangeSelector, options);
        this.destroy();
        this.init(chart);
        this.render();
    }
    /**
     * Destroys allocated elements.
     *
     * @private
     * @function Highcharts.RangeSelector#destroy
     */
    destroy() {
        const rSelector = this, minInput = rSelector.minInput, maxInput = rSelector.maxInput;
        if (rSelector.eventsToUnbind) {
            rSelector.eventsToUnbind.forEach((unbind) => unbind());
            rSelector.eventsToUnbind = void 0;
        }
        // Destroy elements in collections
        destroyObjectProperties(rSelector.buttons);
        // Clear input element events
        if (minInput) {
            minInput.onfocus = minInput.onblur = minInput.onchange = null;
        }
        if (maxInput) {
            maxInput.onfocus = maxInput.onblur = maxInput.onchange = null;
        }
        // Destroy HTML and SVG elements
        objectEach(rSelector, function (val, key) {
            if (val && key !== 'chart') {
                if (val instanceof SVGElement) {
                    // SVGElement
                    val.destroy();
                }
                else if (val instanceof window.HTMLElement) {
                    // HTML element
                    discardElement(val);
                }
            }
            if (val !== RangeSelector.prototype[key]) {
                rSelector[key] = null;
            }
        }, this);
    }
}
extend(RangeSelector.prototype, {
    /**
     * The default buttons for pre-selecting time frames.
     * @private
     */
    defaultButtons: [{
            type: 'month',
            count: 1,
            text: '1m',
            title: 'View 1 month'
        }, {
            type: 'month',
            count: 3,
            text: '3m',
            title: 'View 3 months'
        }, {
            type: 'month',
            count: 6,
            text: '6m',
            title: 'View 6 months'
        }, {
            type: 'ytd',
            text: 'YTD',
            title: 'View year to date'
        }, {
            type: 'year',
            count: 1,
            text: '1y',
            title: 'View 1 year'
        }, {
            type: 'all',
            text: 'All',
            title: 'View all'
        }],
    /**
     * The date formats to use when setting min, max and value on date inputs.
     * @private
     */
    inputTypeFormats: {
        'datetime-local': '%Y-%m-%dT%H:%M:%S',
        'date': '%Y-%m-%d',
        'time': '%H:%M:%S'
    }
});
/* *
 *
 *  Default Export
 *
 * */
export default RangeSelector;
/* *
 *
 *  API Options
 *
 * */
/**
 * Define the time span for the button
 *
 * @typedef {"all"|"day"|"hour"|"millisecond"|"minute"|"month"|"second"|"week"|"year"|"ytd"} Highcharts.RangeSelectorButtonTypeValue
 */
/**
 * Callback function to react on button clicks.
 *
 * @callback Highcharts.RangeSelectorClickCallbackFunction
 *
 * @param {global.Event} e
 *        Event arguments.
 *
 * @param {boolean|undefined}
 *        Return false to cancel the default button event.
 */
/**
 * Callback function to parse values entered in the input boxes and return a
 * valid JavaScript time as milliseconds since 1970.
 *
 * @callback Highcharts.RangeSelectorParseCallbackFunction
 *
 * @param {string} value
 *        Input value to parse.
 *
 * @return {number}
 *         Parsed JavaScript time value.
 */
(''); // keeps doclets above in JS file
