bigDataApp/node_modules/highcharts/modules/exporting.src.js

/**
 * @license Highcharts JS v9.0.1 (2021-02-16)
 *
 * Exporting module
 *
 * (c) 2010-2021 Torstein Honsi
 *
 * License: www.highcharts.com/license
 */
'use strict';
(function (factory) {
    if (typeof module === 'object' && module.exports) {
        factory['default'] = factory;
        module.exports = factory;
    } else if (typeof define === 'function' && define.amd) {
        define('highcharts/modules/exporting', ['highcharts'], function (Highcharts) {
            factory(Highcharts);
            factory.Highcharts = Highcharts;
            return factory;
        });
    } else {
        factory(typeof Highcharts !== 'undefined' ? Highcharts : undefined);
    }
}(function (Highcharts) {
    var _modules = Highcharts ? Highcharts._modules : {};
    function _registerModule(obj, path, args, fn) {
        if (!obj.hasOwnProperty(path)) {
            obj[path] = fn.apply(null, args);
        }
    }
    _registerModule(_modules, 'Extensions/FullScreen.js', [_modules['Core/Chart/Chart.js'], _modules['Core/Globals.js'], _modules['Core/Renderer/HTML/AST.js'], _modules['Core/Utilities.js']], function (Chart, H, AST, U) {
        /* *
         * (c) 2009-2021 Rafal Sebestjanski
         *
         * Full screen for Highcharts
         *
         * License: www.highcharts.com/license
         */
        var doc = H.doc;
        var addEvent = U.addEvent;
        /**
         * The module allows user to enable display chart in full screen mode.
         * Used in StockTools too.
         * Based on default solutions in browsers.
         *
         */
        /* eslint-disable no-invalid-this, valid-jsdoc */
        /**
         * Handles displaying chart's container in the fullscreen mode.
         *
         * **Note**: Fullscreen is not supported on iPhone due to iOS limitations.
         *
         * @class
         * @name Highcharts.Fullscreen
         * @hideconstructor
         * @requires modules/full-screen
         */
        var Fullscreen = /** @class */ (function () {
                /* *
                 *
                 *  Constructors
                 *
                 * */
                function Fullscreen(chart) {
                    /**
                     * Chart managed by the fullscreen controller.
                     * @name Highcharts.Fullscreen#chart
                     * @type {Highcharts.Chart}
                     */
                    this.chart = chart;
                /**
                 * The flag is set to `true` when the chart is displayed in
                 * the fullscreen mode.
                 *
                 * @name Highcharts.Fullscreen#isOpen
                 * @type {boolean|undefined}
                 * @since 8.0.1
                 */
                this.isOpen = false;
                var container = chart.renderTo;
                // Hold event and methods available only for a current browser.
                if (!this.browserProps) {
                    if (typeof container.requestFullscreen === 'function') {
                        this.browserProps = {
                            fullscreenChange: 'fullscreenchange',
                            requestFullscreen: 'requestFullscreen',
                            exitFullscreen: 'exitFullscreen'
                        };
                    }
                    else if (container.mozRequestFullScreen) {
                        this.browserProps = {
                            fullscreenChange: 'mozfullscreenchange',
                            requestFullscreen: 'mozRequestFullScreen',
                            exitFullscreen: 'mozCancelFullScreen'
                        };
                    }
                    else if (container.webkitRequestFullScreen) {
                        this.browserProps = {
                            fullscreenChange: 'webkitfullscreenchange',
                            requestFullscreen: 'webkitRequestFullScreen',
                            exitFullscreen: 'webkitExitFullscreen'
                        };
                    }
                    else if (container.msRequestFullscreen) {
                        this.browserProps = {
                            fullscreenChange: 'MSFullscreenChange',
                            requestFullscreen: 'msRequestFullscreen',
                            exitFullscreen: 'msExitFullscreen'
                        };
                    }
                }
            }
            /* *
             *
             *  Functions
             *
             * */
            /**
             * Stops displaying the chart in fullscreen mode.
             * Exporting module required.
             *
             * @since       8.0.1
             *
             * @function    Highcharts.Fullscreen#close
             * @return      {void}
             * @requires    modules/full-screen
             */
            Fullscreen.prototype.close = function () {
                var fullscreen = this,
                    chart = fullscreen.chart,
                    optionsChart = chart.options.chart;
                // Don't fire exitFullscreen() when user exited using 'Escape' button.
                if (fullscreen.isOpen &&
                    fullscreen.browserProps &&
                    chart.container.ownerDocument instanceof Document) {
                    chart.container.ownerDocument[fullscreen.browserProps.exitFullscreen]();
                }
                // Unbind event as it's necessary only before exiting from fullscreen.
                if (fullscreen.unbindFullscreenEvent) {
                    fullscreen.unbindFullscreenEvent();
                }
                chart.setSize(fullscreen.origWidth, fullscreen.origHeight, false);
                fullscreen.origWidth = void 0;
                fullscreen.origHeight = void 0;
                if (optionsChart) {
                    optionsChart.width = fullscreen.origWidthOption;
                    optionsChart.height = fullscreen.origHeightOption;
                }
                fullscreen.origWidthOption = void 0;
                fullscreen.origHeightOption = void 0;
                fullscreen.isOpen = false;
                fullscreen.setButtonText();
            };
            /**
             * Displays the chart in fullscreen mode.
             * When fired customly by user before exporting context button is created,
             * button's text will not be replaced - it's on the user side.
             * Exporting module required.
             *
             * @since       8.0.1
             *
             * @function Highcharts.Fullscreen#open
             * @return      {void}
             * @requires    modules/full-screen
             */
            Fullscreen.prototype.open = function () {
                var fullscreen = this,
                    chart = fullscreen.chart,
                    optionsChart = chart.options.chart;
                if (optionsChart) {
                    fullscreen.origWidthOption = optionsChart.width;
                    fullscreen.origHeightOption = optionsChart.height;
                }
                fullscreen.origWidth = chart.chartWidth;
                fullscreen.origHeight = chart.chartHeight;
                // Handle exitFullscreen() method when user clicks 'Escape' button.
                if (fullscreen.browserProps) {
                    fullscreen.unbindFullscreenEvent = addEvent(chart.container.ownerDocument, // chart's document
                    fullscreen.browserProps.fullscreenChange, function () {
                        // Handle lack of async of browser's fullScreenChange event.
                        if (fullscreen.isOpen) {
                            fullscreen.isOpen = false;
                            fullscreen.close();
                        }
                        else {
                            chart.setSize(null, null, false);
                            fullscreen.isOpen = true;
                            fullscreen.setButtonText();
                        }
                    });
                    var promise = chart.renderTo[fullscreen.browserProps.requestFullscreen]();
                    if (promise) {
                        // No dot notation because of IE8 compatibility
                        promise['catch'](function () {
                            alert(// eslint-disable-line no-alert
                            'Full screen is not supported inside a frame.');
                        });
                    }
                    addEvent(chart, 'destroy', fullscreen.unbindFullscreenEvent);
                }
            };
            /**
             * Replaces the exporting context button's text when toogling the
             * fullscreen mode.
             *
             * @private
             *
             * @since 8.0.1
             *
             * @requires modules/full-screen
             * @return {void}
             */
            Fullscreen.prototype.setButtonText = function () {
                var _a;
                var chart = this.chart,
                    exportDivElements = chart.exportDivElements,
                    exportingOptions = chart.options.exporting,
                    menuItems = (_a = exportingOptions === null || exportingOptions === void 0 ? void 0 : exportingOptions.buttons) === null || _a === void 0 ? void 0 : _a.contextButton.menuItems,
                    lang = chart.options.lang;
                if ((exportingOptions === null || exportingOptions === void 0 ? void 0 : exportingOptions.menuItemDefinitions) && (lang === null || lang === void 0 ? void 0 : lang.exitFullscreen) &&
                    lang.viewFullscreen &&
                    menuItems &&
                    exportDivElements &&
                    exportDivElements.length) {
                    AST.setElementHTML(exportDivElements[menuItems.indexOf('viewFullscreen')], !this.isOpen ?
                        (exportingOptions.menuItemDefinitions.viewFullscreen.text ||
                            lang.viewFullscreen) : lang.exitFullscreen);
                }
            };
            /**
             * Toggles displaying the chart in fullscreen mode.
             * By default, when the exporting module is enabled, a context button with
             * a drop down menu in the upper right corner accesses this function.
             * Exporting module required.
             *
             * @since 8.0.1
             *
             * @sample      highcharts/members/chart-togglefullscreen/
             *              Toggle fullscreen mode from a HTML button
             *
             * @function Highcharts.Fullscreen#toggle
             * @requires    modules/full-screen
             */
            Fullscreen.prototype.toggle = function () {
                var fullscreen = this;
                if (!fullscreen.isOpen) {
                    fullscreen.open();
                }
                else {
                    fullscreen.close();
                }
            };
            return Fullscreen;
        }());
        H.Fullscreen = Fullscreen;
        // Initialize fullscreen
        addEvent(Chart, 'beforeRender', function () {
            /**
             * @name Highcharts.Chart#fullscreen
             * @type {Highcharts.Fullscreen}
             * @requires modules/full-screen
             */
            this.fullscreen = new H.Fullscreen(this);
        });

        return H.Fullscreen;
    });
    _registerModule(_modules, 'Mixins/Navigation.js', [], function () {
        /**
         *
         *  (c) 2010-2021 Paweł Fus
         *
         *  License: www.highcharts.com/license
         *
         *  !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
         *
         * */
        var chartNavigation = {
                /**
                 * Initializes `chart.navigation` object which delegates `update()` methods
                 * to all other common classes (used in exporting and navigationBindings).
                 *
                 * @private
                 * @param {Highcharts.Chart} chart
                 *        The chart instance.
                 * @return {void}
                 */
                initUpdate: function (chart) {
                    if (!chart.navigation) {
                        chart.navigation = {
                            updates: [],
                            update: function (options,
            redraw) {
                                this.updates.forEach(function (updateConfig) {
                                    updateConfig.update.call(updateConfig.context,
            options,
            redraw);
                            });
                        }
                    };
                }
            },
            /**
             * Registers an `update()` method in the `chart.navigation` object.
             *
             * @private
             * @param {Highcharts.ChartNavigationUpdateFunction} update
             *        The `update()` method that will be called in `chart.update()`.
             * @param {Highcharts.Chart} chart
             *        The chart instance. `update()` will use that as a context
             *        (`this`).
             * @return {void}
             */
            addUpdate: function (update, chart) {
                if (!chart.navigation) {
                    this.initUpdate(chart);
                }
                chart.navigation.updates.push({
                    update: update,
                    context: chart
                });
            }
        };

        return chartNavigation;
    });
    _registerModule(_modules, 'Extensions/Exporting.js', [_modules['Core/Chart/Chart.js'], _modules['Mixins/Navigation.js'], _modules['Core/Globals.js'], _modules['Core/Options.js'], _modules['Core/Color/Palette.js'], _modules['Core/Renderer/SVG/SVGRenderer.js'], _modules['Core/Utilities.js']], function (Chart, chartNavigationMixin, H, O, palette, SVGRenderer, U) {
        /* *
         *
         *  Exporting module
         *
         *  (c) 2010-2021 Torstein Honsi
         *
         *  License: www.highcharts.com/license
         *
         *  !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
         *
         * */
        var doc = H.doc,
            isTouchDevice = H.isTouchDevice,
            win = H.win;
        var defaultOptions = O.defaultOptions;
        var addEvent = U.addEvent,
            css = U.css,
            createElement = U.createElement,
            discardElement = U.discardElement,
            extend = U.extend,
            find = U.find,
            fireEvent = U.fireEvent,
            isObject = U.isObject,
            merge = U.merge,
            objectEach = U.objectEach,
            pick = U.pick,
            removeEvent = U.removeEvent,
            uniqueKey = U.uniqueKey;
        /**
         * Gets fired after a chart is printed through the context menu item or the
         * Chart.print method.
         *
         * @callback Highcharts.ExportingAfterPrintCallbackFunction
         *
         * @param {Highcharts.Chart} chart
         *        The chart on which the event occured.
         *
         * @param {global.Event} event
         *        The event that occured.
         */
        /**
         * Gets fired before a chart is printed through the context menu item or the
         * Chart.print method.
         *
         * @callback Highcharts.ExportingBeforePrintCallbackFunction
         *
         * @param {Highcharts.Chart} chart
         *        The chart on which the event occured.
         *
         * @param {global.Event} event
         *        The event that occured.
         */
        /**
         * Function to call if the offline-exporting module fails to export a chart on
         * the client side.
         *
         * @callback Highcharts.ExportingErrorCallbackFunction
         *
         * @param {Highcharts.ExportingOptions} options
         *        The exporting options.
         *
         * @param {global.Error} err
         *        The error from the module.
         */
        /**
         * Definition for a menu item in the context menu.
         *
         * @interface Highcharts.ExportingMenuObject
         */ /**
        * The text for the menu item.
        *
        * @name Highcharts.ExportingMenuObject#text
        * @type {string|undefined}
        */ /**
        * If internationalization is required, the key to a language string.
        *
        * @name Highcharts.ExportingMenuObject#textKey
        * @type {string|undefined}
        */ /**
        * The click handler for the menu item.
        *
        * @name Highcharts.ExportingMenuObject#onclick
        * @type {Highcharts.EventCallbackFunction<Highcharts.Chart>|undefined}
        */ /**
        * Indicates a separator line instead of an item.
        *
        * @name Highcharts.ExportingMenuObject#separator
        * @type {boolean|undefined}
        */
        /**
         * Possible MIME types for exporting.
         *
         * @typedef {"image/png"|"image/jpeg"|"application/pdf"|"image/svg+xml"} Highcharts.ExportingMimeTypeValue
         */
        // Add language
        extend(defaultOptions.lang
        /**
         * @optionparent lang
         */
        , {
            /**
             * Exporting module only. The text for the menu item to view the chart
             * in full screen.
             *
             * @since 8.0.1
             *
             * @private
             */
            viewFullscreen: 'View in full screen',
            /**
             * Exporting module only. The text for the menu item to exit the chart
             * from full screen.
             *
             * @since 8.0.1
             *
             * @private
             */
            exitFullscreen: 'Exit from full screen',
            /**
             * Exporting module only. The text for the menu item to print the chart.
             *
             * @since    3.0.1
             * @requires modules/exporting
             *
             * @private
             */
            printChart: 'Print chart',
            /**
             * Exporting module only. The text for the PNG download menu item.
             *
             * @since    2.0
             * @requires modules/exporting
             *
             * @private
             */
            downloadPNG: 'Download PNG image',
            /**
             * Exporting module only. The text for the JPEG download menu item.
             *
             * @since    2.0
             * @requires modules/exporting
             *
             * @private
             */
            downloadJPEG: 'Download JPEG image',
            /**
             * Exporting module only. The text for the PDF download menu item.
             *
             * @since    2.0
             * @requires modules/exporting
             *
             * @private
             */
            downloadPDF: 'Download PDF document',
            /**
             * Exporting module only. The text for the SVG download menu item.
             *
             * @since    2.0
             * @requires modules/exporting
             *
             * @private
             */
            downloadSVG: 'Download SVG vector image',
            /**
             * Exporting module menu. The tooltip title for the context menu holding
             * print and export menu items.
             *
             * @since    3.0
             * @requires modules/exporting
             *
             * @private
             */
            contextButtonTitle: 'Chart context menu'
        });
        if (!defaultOptions.navigation) {
            // Buttons and menus are collected in a separate config option set called
            // 'navigation'. This can be extended later to add control buttons like
            // zoom and pan right click menus.
            /**
             * A collection of options for buttons and menus appearing in the exporting
             * module.
             *
             * @requires     modules/exporting
             * @optionparent navigation
             */
            defaultOptions.navigation = {};
        }
        merge(true, defaultOptions.navigation, {
            /**
             * @optionparent navigation.buttonOptions
             *
             * @private
             */
            buttonOptions: {
                theme: {},
                /**
                 * Whether to enable buttons.
                 *
                 * @sample highcharts/navigation/buttonoptions-enabled/
                 *         Exporting module loaded but buttons disabled
                 *
                 * @type      {boolean}
                 * @default   true
                 * @since     2.0
                 * @apioption navigation.buttonOptions.enabled
                 */
                /**
                 * The pixel size of the symbol on the button.
                 *
                 * @sample highcharts/navigation/buttonoptions-height/
                 *         Bigger buttons
                 *
                 * @since 2.0
                 */
                symbolSize: 14,
                /**
                 * The x position of the center of the symbol inside the button.
                 *
                 * @sample highcharts/navigation/buttonoptions-height/
                 *         Bigger buttons
                 *
                 * @since 2.0
                 */
                symbolX: 12.5,
                /**
                 * The y position of the center of the symbol inside the button.
                 *
                 * @sample highcharts/navigation/buttonoptions-height/
                 *         Bigger buttons
                 *
                 * @since 2.0
                 */
                symbolY: 10.5,
                /**
                 * Alignment for the buttons.
                 *
                 * @sample highcharts/navigation/buttonoptions-align/
                 *         Center aligned
                 *
                 * @type  {Highcharts.AlignValue}
                 * @since 2.0
                 */
                align: 'right',
                /**
                 * The pixel spacing between buttons.
                 *
                 * @since 2.0
                 */
                buttonSpacing: 3,
                /**
                 * Pixel height of the buttons.
                 *
                 * @sample highcharts/navigation/buttonoptions-height/
                 *         Bigger buttons
                 *
                 * @since 2.0
                 */
                height: 22,
                /**
                 * A text string to add to the individual button.
                 *
                 * @sample highcharts/exporting/buttons-text/
                 *         Full text button
                 * @sample highcharts/exporting/buttons-text-symbol/
                 *         Combined symbol and text
                 *
                 * @type      {string}
                 * @default   null
                 * @since     3.0
                 * @apioption navigation.buttonOptions.text
                 */
                /**
                 * The vertical offset of the button's position relative to its
                 * `verticalAlign`.
                 *
                 * @sample highcharts/navigation/buttonoptions-verticalalign/
                 *         Buttons at lower right
                 *
                 * @type      {number}
                 * @default   0
                 * @since     2.0
                 * @apioption navigation.buttonOptions.y
                 */
                /**
                 * The vertical alignment of the buttons. Can be one of `"top"`,
                 * `"middle"` or `"bottom"`.
                 *
                 * @sample highcharts/navigation/buttonoptions-verticalalign/
                 *         Buttons at lower right
                 *
                 * @type  {Highcharts.VerticalAlignValue}
                 * @since 2.0
                 */
                verticalAlign: 'top',
                /**
                 * The pixel width of the button.
                 *
                 * @sample highcharts/navigation/buttonoptions-height/
                 *         Bigger buttons
                 *
                 * @since 2.0
                 */
                width: 24
            }
        });
        // Presentational attributes
        merge(true, defaultOptions.navigation
        /**
         * A collection of options for buttons and menus appearing in the exporting
         * module.
         *
         * @optionparent navigation
         */
        , {
            /**
             * CSS styles for the popup menu appearing by default when the export
             * icon is clicked. This menu is rendered in HTML.
             *
             * @see In styled mode, the menu is styled with the `.highcharts-menu`
             *      class.
             *
             * @sample highcharts/navigation/menustyle/
             *         Light gray menu background
             *
             * @type    {Highcharts.CSSObject}
             * @default {"border": "1px solid #999999", "background": "#ffffff", "padding": "5px 0"}
             * @since   2.0
             *
             * @private
             */
            menuStyle: {
                /** @ignore-option */
                border: "1px solid " + palette.neutralColor40,
                /** @ignore-option */
                background: palette.backgroundColor,
                /** @ignore-option */
                padding: '5px 0'
            },
            /**
             * CSS styles for the individual items within the popup menu appearing
             * by default when the export icon is clicked. The menu items are
             * rendered in HTML. Font size defaults to `11px` on desktop and `14px`
             * on touch devices.
             *
             * @see In styled mode, the menu items are styled with the
             *      `.highcharts-menu-item` class.
             *
             * @sample {highcharts} highcharts/navigation/menuitemstyle/
             *         Add a grey stripe to the left
             *
             * @type    {Highcharts.CSSObject}
             * @default {"padding": "0.5em 1em", "color": "#333333", "background": "none", "fontSize": "11px/14px", "transition": "background 250ms, color 250ms"}
             * @since   2.0
             *
             * @private
             */
            menuItemStyle: {
                /** @ignore-option */
                padding: '0.5em 1em',
                /** @ignore-option */
                color: palette.neutralColor80,
                /** @ignore-option */
                background: 'none',
                /** @ignore-option */
                fontSize: isTouchDevice ? '14px' : '11px',
                /** @ignore-option */
                transition: 'background 250ms, color 250ms'
            },
            /**
             * CSS styles for the hover state of the individual items within the
             * popup menu appearing by default when the export icon is clicked. The
             * menu items are rendered in HTML.
             *
             * @see In styled mode, the menu items are styled with the
             *      `.highcharts-menu-item` class.
             *
             * @sample highcharts/navigation/menuitemhoverstyle/
             *         Bold text on hover
             *
             * @type    {Highcharts.CSSObject}
             * @default {"background": "#335cad", "color": "#ffffff"}
             * @since   2.0
             *
             * @private
             */
            menuItemHoverStyle: {
                /** @ignore-option */
                background: palette.highlightColor80,
                /** @ignore-option */
                color: palette.backgroundColor
            },
            /**
             * A collection of options for buttons appearing in the exporting
             * module.
             *
             * In styled mode, the buttons are styled with the
             * `.highcharts-contextbutton` and `.highcharts-button-symbol` classes.
             *
             * @requires modules/exporting
             *
             * @private
             */
            buttonOptions: {
                /**
                 * Fill color for the symbol within the button.
                 *
                 * @sample highcharts/navigation/buttonoptions-symbolfill/
                 *         Blue symbol stroke for one of the buttons
                 *
                 * @type  {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
                 * @since 2.0
                 */
                symbolFill: palette.neutralColor60,
                /**
                 * The color of the symbol's stroke or line.
                 *
                 * @sample highcharts/navigation/buttonoptions-symbolstroke/
                 *         Blue symbol stroke
                 *
                 * @type  {Highcharts.ColorString}
                 * @since 2.0
                 */
                symbolStroke: palette.neutralColor60,
                /**
                 * The pixel stroke width of the symbol on the button.
                 *
                 * @sample highcharts/navigation/buttonoptions-height/
                 *         Bigger buttons
                 *
                 * @since 2.0
                 */
                symbolStrokeWidth: 3,
                /**
                 * A configuration object for the button theme. The object accepts
                 * SVG properties like `stroke-width`, `stroke` and `fill`.
                 * Tri-state button styles are supported by the `states.hover` and
                 * `states.select` objects.
                 *
                 * @sample highcharts/navigation/buttonoptions-theme/
                 *         Theming the buttons
                 *
                 * @requires modules/exporting
                 *
                 * @since 3.0
                 */
                theme: {
                    /**
                     * The default fill exists only to capture hover events.
                     *
                     * @type      {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
                     * @default   ${palette.backgroundColor}
                     * @apioption navigation.buttonOptions.theme.fill
                     */
                    /**
                     * Default stroke for the buttons.
                     * @type      {Highcharts.ColorString}
                     * @default   none
                     * @apioption navigation.buttonOptions.theme.stroke
                     */
                    /**
                     * Padding for the button.
                     */
                    padding: 5
                }
            }
        });
        // Add the export related options
        /**
         * Options for the exporting module. For an overview on the matter, see
         * [the docs](https://www.highcharts.com/docs/export-module/export-module-overview).
         *
         * @requires     modules/exporting
         * @optionparent exporting
         */
        defaultOptions.exporting = {
            /**
             * Experimental setting to allow HTML inside the chart (added through
             * the `useHTML` options), directly in the exported image. This allows
             * you to preserve complicated HTML structures like tables or bi-directional
             * text in exported charts.
             *
             * Disclaimer: The HTML is rendered in a `foreignObject` tag in the
             * generated SVG. The official export server is based on PhantomJS,
             * which supports this, but other SVG clients, like Batik, does not
             * support it. This also applies to downloaded SVG that you want to
             * open in a desktop client.
             *
             * @type      {boolean}
             * @default   false
             * @since     4.1.8
             * @apioption exporting.allowHTML
             */
            /**
             * Additional chart options to be merged into the chart before exporting to
             * an image format. This does not apply to printing the chart via the export
             * menu.
             *
             * For example, a common use case is to add data labels to improve
             * readability of the exported chart, or to add a printer-friendly color
             * scheme to exported PDFs.
             *
             * @sample {highcharts} highcharts/exporting/chartoptions-data-labels/
             *         Added data labels
             * @sample {highstock} highcharts/exporting/chartoptions-data-labels/
             *         Added data labels
             *
             * @type      {Highcharts.Options}
             * @apioption exporting.chartOptions
             */
            /**
             * Whether to enable the exporting module. Disabling the module will
             * hide the context button, but API methods will still be available.
             *
             * @sample {highcharts} highcharts/exporting/enabled-false/
             *         Exporting module is loaded but disabled
             * @sample {highstock} highcharts/exporting/enabled-false/
             *         Exporting module is loaded but disabled
             *
             * @type      {boolean}
             * @default   true
             * @since     2.0
             * @apioption exporting.enabled
             */
            /**
             * Function to call if the offline-exporting module fails to export
             * a chart on the client side, and [fallbackToExportServer](
             * #exporting.fallbackToExportServer) is disabled. If left undefined, an
             * exception is thrown instead. Receives two parameters, the exporting
             * options, and the error from the module.
             *
             * @see [fallbackToExportServer](#exporting.fallbackToExportServer)
             *
             * @type      {Highcharts.ExportingErrorCallbackFunction}
             * @since     5.0.0
             * @requires  modules/exporting
             * @requires  modules/offline-exporting
             * @apioption exporting.error
             */
            /**
             * Whether or not to fall back to the export server if the offline-exporting
             * module is unable to export the chart on the client side. This happens for
             * certain browsers, and certain features (e.g.
             * [allowHTML](#exporting.allowHTML)), depending on the image type exporting
             * to. For very complex charts, it is possible that export can fail in
             * browsers that don't support Blob objects, due to data URL length limits.
             * It is recommended to define the [exporting.error](#exporting.error)
             * handler if disabling fallback, in order to notify users in case export
             * fails.
             *
             * @type      {boolean}
             * @default   true
             * @since     4.1.8
             * @requires  modules/exporting
             * @requires  modules/offline-exporting
             * @apioption exporting.fallbackToExportServer
             */
            /**
             * The filename, without extension, to use for the exported chart.
             *
             * @sample {highcharts} highcharts/exporting/filename/
             *         Custom file name
             * @sample {highstock} highcharts/exporting/filename/
             *         Custom file name
             *
             * @type      {string}
             * @default   chart
             * @since     2.0
             * @apioption exporting.filename
             */
            /**
             * An object containing additional key value data for the POST form that
             * sends the SVG to the export server. For example, a `target` can be set to
             * make sure the generated image is received in another frame, or a custom
             * `enctype` or `encoding` can be set.
             *
             * @type      {Highcharts.HTMLAttributes}
             * @since     3.0.8
             * @apioption exporting.formAttributes
             */
            /**
             * Path where Highcharts will look for export module dependencies to
             * load on demand if they don't already exist on `window`. Should currently
             * point to location of [CanVG](https://github.com/canvg/canvg) library,
             * [RGBColor.js](https://github.com/canvg/canvg),
             * [jsPDF](https://github.com/yWorks/jsPDF) and
             * [svg2pdf.js](https://github.com/yWorks/svg2pdf.js), required for client
             * side export in certain browsers.
             *
             * @type      {string}
             * @default   https://code.highcharts.com/{version}/lib
             * @since     5.0.0
             * @apioption exporting.libURL
             */
            /**
             * Analogous to [sourceWidth](#exporting.sourceWidth).
             *
             * @type      {number}
             * @since     3.0
             * @apioption exporting.sourceHeight
             */
            /**
             * The width of the original chart when exported, unless an explicit
             * [chart.width](#chart.width) is set, or a pixel width is set on the
             * container. The width exported raster image is then multiplied by
             * [scale](#exporting.scale).
             *
             * @sample {highcharts} highcharts/exporting/sourcewidth/
             *         Source size demo
             * @sample {highstock} highcharts/exporting/sourcewidth/
             *         Source size demo
             * @sample {highmaps} maps/exporting/sourcewidth/
             *         Source size demo
             *
             * @type      {number}
             * @since     3.0
             * @apioption exporting.sourceWidth
             */
            /**
             * The pixel width of charts exported to PNG or JPG. As of Highcharts
             * 3.0, the default pixel width is a function of the [chart.width](
             * #chart.width) or [exporting.sourceWidth](#exporting.sourceWidth) and the
             * [exporting.scale](#exporting.scale).
             *
             * @sample {highcharts} highcharts/exporting/width/
             *         Export to 200px wide images
             * @sample {highstock} highcharts/exporting/width/
             *         Export to 200px wide images
             *
             * @type      {number}
             * @since     2.0
             * @apioption exporting.width
             */
            /**
             * Default MIME type for exporting if `chart.exportChart()` is called
             * without specifying a `type` option. Possible values are `image/png`,
             *  `image/jpeg`, `application/pdf` and `image/svg+xml`.
             *
             * @type  {Highcharts.ExportingMimeTypeValue}
             * @since 2.0
             */
            type: 'image/png',
            /**
             * The URL for the server module converting the SVG string to an image
             * format. By default this points to Highchart's free web service.
             *
             * @since 2.0
             */
            url: 'https://export.highcharts.com/',
            /**
             * When printing the chart from the menu item in the burger menu, if
             * the on-screen chart exceeds this width, it is resized. After printing
             * or cancelled, it is restored. The default width makes the chart
             * fit into typical paper format. Note that this does not affect the
             * chart when printing the web page as a whole.
             *
             * @since 4.2.5
             */
            printMaxWidth: 780,
            /**
             * Defines the scale or zoom factor for the exported image compared
             * to the on-screen display. While for instance a 600px wide chart
             * may look good on a website, it will look bad in print. The default
             * scale of 2 makes this chart export to a 1200px PNG or JPG.
             *
             * @see [chart.width](#chart.width)
             * @see [exporting.sourceWidth](#exporting.sourceWidth)
             *
             * @sample {highcharts} highcharts/exporting/scale/
             *         Scale demonstrated
             * @sample {highstock} highcharts/exporting/scale/
             *         Scale demonstrated
             * @sample {highmaps} maps/exporting/scale/
             *         Scale demonstrated
             *
             * @since 3.0
             */
            scale: 2,
            /**
             * Options for the export related buttons, print and export. In addition
             * to the default buttons listed here, custom buttons can be added.
             * See [navigation.buttonOptions](#navigation.buttonOptions) for general
             * options.
             *
             * @type     {Highcharts.Dictionary<*>}
             * @requires modules/exporting
             */
            buttons: {
                /**
                 * Options for the export button.
                 *
                 * In styled mode, export button styles can be applied with the
                 * `.highcharts-contextbutton` class.
                 *
                 * @declare  Highcharts.ExportingButtonsOptionsObject
                 * @extends  navigation.buttonOptions
                 * @requires modules/exporting
                 */
                contextButton: {
                    /**
                     * A click handler callback to use on the button directly instead of
                     * the popup menu.
                     *
                     * @sample highcharts/exporting/buttons-contextbutton-onclick/
                     *         Skip the menu and export the chart directly
                     *
                     * @type      {Function}
                     * @since     2.0
                     * @apioption exporting.buttons.contextButton.onclick
                     */
                    /**
                     * See [navigation.buttonOptions.symbolFill](
                     * #navigation.buttonOptions.symbolFill).
                     *
                     * @type      {Highcharts.ColorString}
                     * @default   #666666
                     * @since     2.0
                     * @apioption exporting.buttons.contextButton.symbolFill
                     */
                    /**
                     * The horizontal position of the button relative to the `align`
                     * option.
                     *
                     * @type      {number}
                     * @default   -10
                     * @since     2.0
                     * @apioption exporting.buttons.contextButton.x
                     */
                    /**
                     * The class name of the context button.
                     */
                    className: 'highcharts-contextbutton',
                    /**
                     * The class name of the menu appearing from the button.
                     */
                    menuClassName: 'highcharts-contextmenu',
                    /**
                     * The symbol for the button. Points to a definition function in
                     * the `Highcharts.Renderer.symbols` collection. The default
                     * `exportIcon` function is part of the exporting module. Possible
                     * values are "circle", "square", "diamond", "triangle",
                     * "triangle-down", "menu", "menuball" or custom shape.
                     *
                     * @sample highcharts/exporting/buttons-contextbutton-symbol/
                     *         Use a circle for symbol
                     * @sample highcharts/exporting/buttons-contextbutton-symbol-custom/
                     *         Custom shape as symbol
                     *
                     * @type  {Highcharts.SymbolKeyValue|"exportIcon"|"menu"|"menuball"|string}
                     * @since 2.0
                     */
                    symbol: 'menu',
                    /**
                     * The key to a [lang](#lang) option setting that is used for the
                     * button's title tooltip. When the key is `contextButtonTitle`, it
                     * refers to [lang.contextButtonTitle](#lang.contextButtonTitle)
                     * that defaults to "Chart context menu".
                     *
                     * @since 6.1.4
                     */
                    titleKey: 'contextButtonTitle',
                    /**
                     * This option is deprecated, use
                     * [titleKey](#exporting.buttons.contextButton.titleKey) instead.
                     *
                     * @deprecated
                     * @type      {string}
                     * @apioption exporting.buttons.contextButton._titleKey
                     */
                    /**
                     * A collection of strings pointing to config options for the menu
                     * items. The config options are defined in the
                     * `menuItemDefinitions` option.
                     *
                     * By default, there is the "View in full screen" and "Print" menu
                     * items, plus one menu item for each of the available export types.
                     *
                     * @sample {highcharts} highcharts/exporting/menuitemdefinitions/
                     *         Menu item definitions
                     * @sample {highstock} highcharts/exporting/menuitemdefinitions/
                     *         Menu item definitions
                     * @sample {highmaps} highcharts/exporting/menuitemdefinitions/
                     *         Menu item definitions
                     *
                     * @type    {Array<string>}
                     * @default ["viewFullscreen", "printChart", "separator", "downloadPNG", "downloadJPEG", "downloadPDF", "downloadSVG"]
                     * @since   2.0
                     */
                    menuItems: [
                        'viewFullscreen',
                        'printChart',
                        'separator',
                        'downloadPNG',
                        'downloadJPEG',
                        'downloadPDF',
                        'downloadSVG'
                    ]
                }
            },
            /**
             * An object consisting of definitions for the menu items in the context
             * menu. Each key value pair has a `key` that is referenced in the
             * [menuItems](#exporting.buttons.contextButton.menuItems) setting,
             * and a `value`, which is an object with the following properties:
             *
             * - **onclick:** The click handler for the menu item
             *
             * - **text:** The text for the menu item
             *
             * - **textKey:** If internationalization is required, the key to a language
             *   string
             *
             * Custom text for the "exitFullScreen" can be set only in lang options
             * (it is not a separate button).
             *
             * @sample {highcharts} highcharts/exporting/menuitemdefinitions/
             *         Menu item definitions
             * @sample {highstock} highcharts/exporting/menuitemdefinitions/
             *         Menu item definitions
             * @sample {highmaps} highcharts/exporting/menuitemdefinitions/
             *         Menu item definitions
             *
             *
             * @type    {Highcharts.Dictionary<Highcharts.ExportingMenuObject>}
             * @default {"viewFullscreen": {}, "printChart": {}, "separator": {}, "downloadPNG": {}, "downloadJPEG": {}, "downloadPDF": {}, "downloadSVG": {}}
             * @since   5.0.13
             */
            menuItemDefinitions: {
                /**
                 * @ignore
                 */
                viewFullscreen: {
                    textKey: 'viewFullscreen',
                    onclick: function () {
                        this.fullscreen.toggle();
                    }
                },
                /**
                 * @ignore
                 */
                printChart: {
                    textKey: 'printChart',
                    onclick: function () {
                        this.print();
                    }
                },
                /**
                 * @ignore
                 */
                separator: {
                    separator: true
                },
                /**
                 * @ignore
                 */
                downloadPNG: {
                    textKey: 'downloadPNG',
                    onclick: function () {
                        this.exportChart();
                    }
                },
                /**
                 * @ignore
                 */
                downloadJPEG: {
                    textKey: 'downloadJPEG',
                    onclick: function () {
                        this.exportChart({
                            type: 'image/jpeg'
                        });
                    }
                },
                /**
                 * @ignore
                 */
                downloadPDF: {
                    textKey: 'downloadPDF',
                    onclick: function () {
                        this.exportChart({
                            type: 'application/pdf'
                        });
                    }
                },
                /**
                 * @ignore
                 */
                downloadSVG: {
                    textKey: 'downloadSVG',
                    onclick: function () {
                        this.exportChart({
                            type: 'image/svg+xml'
                        });
                    }
                }
            }
        };
        /**
         * Fires after a chart is printed through the context menu item or the
         * `Chart.print` method.
         *
         * @sample highcharts/chart/events-beforeprint-afterprint/
         *         Rescale the chart to print
         *
         * @type      {Highcharts.ExportingAfterPrintCallbackFunction}
         * @since     4.1.0
         * @context   Highcharts.Chart
         * @requires  modules/exporting
         * @apioption chart.events.afterPrint
         */
        /**
         * Fires before a chart is printed through the context menu item or
         * the `Chart.print` method.
         *
         * @sample highcharts/chart/events-beforeprint-afterprint/
         *         Rescale the chart to print
         *
         * @type      {Highcharts.ExportingBeforePrintCallbackFunction}
         * @since     4.1.0
         * @context   Highcharts.Chart
         * @requires  modules/exporting
         * @apioption chart.events.beforePrint
         */
        /**
         * The post utility
         *
         * @private
         * @function Highcharts.post
         * @param {string} url
         *        Post URL
         * @param {object} data
         *        Post data
         * @param {Highcharts.Dictionary<string>} [formAttributes]
         *        Additional attributes for the post request
         * @return {void}
         */
        H.post = function (url, data, formAttributes) {
            // create the form
            var form = createElement('form',
                merge({
                    method: 'post',
                    action: url,
                    enctype: 'multipart/form-data'
                },
                formAttributes), {
                    display: 'none'
                },
                doc.body);
            // add the data
            objectEach(data, function (val, name) {
                createElement('input', {
                    type: 'hidden',
                    name: name,
                    value: val
                }, null, form);
            });
            // submit
            form.submit();
            // clean up
            discardElement(form);
        };
        if (H.isSafari) {
            H.win.matchMedia('print').addListener(function (mqlEvent) {
                if (!H.printingChart) {
                    return void 0;
                }
                if (mqlEvent.matches) {
                    H.printingChart.beforePrint();
                }
                else {
                    H.printingChart.afterPrint();
                }
            });
        }
        extend(Chart.prototype, /** @lends Highcharts.Chart.prototype */ {
            /* eslint-disable no-invalid-this, valid-jsdoc */
            /**
             * Exporting module only. A collection of fixes on the produced SVG to
             * account for expando properties, browser bugs, VML problems and other.
             * Returns a cleaned SVG.
             *
             * @private
             * @function Highcharts.Chart#sanitizeSVG
             * @param {string} svg
             *        SVG code to sanitize
             * @param {Highcharts.Options} options
             *        Chart options to apply
             * @return {string}
             *         Sanitized SVG code
             * @requires modules/exporting
             */
            sanitizeSVG: function (svg, options) {
                var split = svg.indexOf('</svg>') + 6,
                    html = svg.substr(split);
                // Remove any HTML added to the container after the SVG (#894, #9087)
                svg = svg.substr(0, split);
                // Move HTML into a foreignObject
                if (options && options.exporting && options.exporting.allowHTML) {
                    if (html) {
                        html = '<foreignObject x="0" y="0" ' +
                            'width="' + options.chart.width + '" ' +
                            'height="' + options.chart.height + '">' +
                            '<body xmlns="http://www.w3.org/1999/xhtml">' +
                            // Some tags needs to be closed in xhtml (#13726)
                            html.replace(/(<(?:img|br).*?(?=\>))>/g, '$1 />') +
                            '</body>' +
                            '</foreignObject>';
                        svg = svg.replace('</svg>', html + '</svg>');
                    }
                }
                svg = svg
                    .replace(/zIndex="[^"]+"/g, '')
                    .replace(/symbolName="[^"]+"/g, '')
                    .replace(/jQuery[0-9]+="[^"]+"/g, '')
                    .replace(/url\(("|&quot;)(.*?)("|&quot;)\;?\)/g, 'url($2)')
                    .replace(/url\([^#]+#/g, 'url(#')
                    .replace(/<svg /, '<svg xmlns:xlink="http://www.w3.org/1999/xlink" ')
                    .replace(/ (|NS[0-9]+\:)href=/g, ' xlink:href=') // #3567
                    .replace(/\n/, ' ')
                    // Batik doesn't support rgba fills and strokes (#3095)
                    .replace(/(fill|stroke)="rgba\(([ 0-9]+,[ 0-9]+,[ 0-9]+),([ 0-9\.]+)\)"/g, // eslint-disable-line max-len
                '$1="rgb($2)" $1-opacity="$3"')
                    // Replace HTML entities, issue #347
                    .replace(/&nbsp;/g, '\u00A0') // no-break space
                    .replace(/&shy;/g, '\u00AD'); // soft hyphen
                // Further sanitize for oldIE
                if (this.ieSanitizeSVG) {
                    svg = this.ieSanitizeSVG(svg);
                }
                return svg;
            },
            /**
             * Return the unfiltered innerHTML of the chart container. Used as hook for
             * plugins. In styled mode, it also takes care of inlining CSS style rules.
             *
             * @see Chart#getSVG
             *
             * @function Highcharts.Chart#getChartHTML
             *
             * @returns {string}
             *          The unfiltered SVG of the chart.
             *
             * @requires modules/exporting
             */
            getChartHTML: function () {
                if (this.styledMode) {
                    this.inlineStyles();
                }
                return this.container.innerHTML;
            },
            /**
             * Return an SVG representation of the chart.
             *
             * @sample highcharts/members/chart-getsvg/
             *         View the SVG from a button
             *
             * @function Highcharts.Chart#getSVG
             *
             * @param {Highcharts.Options} [chartOptions]
             *        Additional chart options for the generated SVG representation. For
             *        collections like `xAxis`, `yAxis` or `series`, the additional
             *        options is either merged in to the original item of the same
             *        `id`, or to the first item if a common id is not found.
             *
             * @return {string}
             *         The SVG representation of the rendered chart.
             *
             * @fires Highcharts.Chart#event:getSVG
             *
             * @requires modules/exporting
             */
            getSVG: function (chartOptions) {
                var chart = this,
                    chartCopy,
                    sandbox,
                    svg,
                    seriesOptions,
                    sourceWidth,
                    sourceHeight,
                    cssWidth,
                    cssHeight, 
                    // Copy the options and add extra options
                    options = merge(chart.options,
                    chartOptions);
                // Use userOptions to make the options chain in series right (#3881)
                options.plotOptions = merge(chart.userOptions.plotOptions, chartOptions && chartOptions.plotOptions);
                // ... and likewise with time, avoid that undefined time properties are
                // merged over legacy global time options
                options.time = merge(chart.userOptions.time, chartOptions && chartOptions.time);
                // create a sandbox where a new chart will be generated
                sandbox = createElement('div', null, {
                    position: 'absolute',
                    top: '-9999em',
                    width: chart.chartWidth + 'px',
                    height: chart.chartHeight + 'px'
                }, doc.body);
                // get the source size
                cssWidth = chart.renderTo.style.width;
                cssHeight = chart.renderTo.style.height;
                sourceWidth = options.exporting.sourceWidth ||
                    options.chart.width ||
                    (/px$/.test(cssWidth) && parseInt(cssWidth, 10)) ||
                    (options.isGantt ? 800 : 600);
                sourceHeight = options.exporting.sourceHeight ||
                    options.chart.height ||
                    (/px$/.test(cssHeight) && parseInt(cssHeight, 10)) ||
                    400;
                // override some options
                extend(options.chart, {
                    animation: false,
                    renderTo: sandbox,
                    forExport: true,
                    renderer: 'SVGRenderer',
                    width: sourceWidth,
                    height: sourceHeight
                });
                options.exporting.enabled = false; // hide buttons in print
                delete options.data; // #3004
                // prepare for replicating the chart
                options.series = [];
                chart.series.forEach(function (serie) {
                    seriesOptions = merge(serie.userOptions, {
                        animation: false,
                        enableMouseTracking: false,
                        showCheckbox: false,
                        visible: serie.visible
                    });
                    // Used for the navigator series that has its own option set
                    if (!seriesOptions.isInternal) {
                        options.series.push(seriesOptions);
                    }
                });
                // Assign an internal key to ensure a one-to-one mapping (#5924)
                chart.axes.forEach(function (axis) {
                    if (!axis.userOptions.internalKey) { // #6444
                        axis.userOptions.internalKey = uniqueKey();
                    }
                });
                // generate the chart copy
                chartCopy = new Chart(options, chart.callback);
                // Axis options and series options  (#2022, #3900, #5982)
                if (chartOptions) {
                    ['xAxis', 'yAxis', 'series'].forEach(function (coll) {
                        var collOptions = {};
                        if (chartOptions[coll]) {
                            collOptions[coll] = chartOptions[coll];
                            chartCopy.update(collOptions);
                        }
                    });
                }
                // Reflect axis extremes in the export (#5924)
                chart.axes.forEach(function (axis) {
                    var axisCopy = find(chartCopy.axes,
                        function (copy) {
                            return copy.options.internalKey ===
                                axis.userOptions.internalKey;
                    }), extremes = axis.getExtremes(), userMin = extremes.userMin, userMax = extremes.userMax;
                    if (axisCopy &&
                        ((typeof userMin !== 'undefined' &&
                            userMin !== axisCopy.min) || (typeof userMax !== 'undefined' &&
                            userMax !== axisCopy.max))) {
                        axisCopy.setExtremes(userMin, userMax, true, false);
                    }
                });
                // Get the SVG from the container's innerHTML
                svg = chartCopy.getChartHTML();
                fireEvent(this, 'getSVG', { chartCopy: chartCopy });
                svg = chart.sanitizeSVG(svg, options);
                // free up memory
                options = null;
                chartCopy.destroy();
                discardElement(sandbox);
                return svg;
            },
            /**
             * @private
             * @function Highcharts.Chart#getSVGForExport
             * @param {Highcharts.ExportingOptions} options
             * @param {Highcharts.Options} chartOptions
             * @return {string}
             * @requires modules/exporting
             */
            getSVGForExport: function (options, chartOptions) {
                var chartExportingOptions = this.options.exporting;
                return this.getSVG(merge({ chart: { borderRadius: 0 } }, chartExportingOptions.chartOptions, chartOptions, {
                    exporting: {
                        sourceWidth: ((options && options.sourceWidth) ||
                            chartExportingOptions.sourceWidth),
                        sourceHeight: ((options && options.sourceHeight) ||
                            chartExportingOptions.sourceHeight)
                    }
                }));
            },
            /**
             * Get the default file name used for exported charts. By default it creates
             * a file name based on the chart title.
             *
             * @function Highcharts.Chart#getFilename
             *
             * @return {string} A file name without extension.
             *
             * @requires modules/exporting
             */
            getFilename: function () {
                var s = this.userOptions.title && this.userOptions.title.text,
                    filename = this.options.exporting.filename;
                if (filename) {
                    return filename.replace(/\//g, '-');
                }
                if (typeof s === 'string') {
                    filename = s
                        .toLowerCase()
                        .replace(/<\/?[^>]+(>|$)/g, '') // strip HTML tags
                        .replace(/[\s_]+/g, '-')
                        .replace(/[^a-z0-9\-]/g, '') // preserve only latin
                        .replace(/^[\-]+/g, '') // dashes in the start
                        .replace(/[\-]+/g, '-') // dashes in a row
                        .substr(0, 24)
                        .replace(/[\-]+$/g, ''); // dashes in the end;
                }
                if (!filename || filename.length < 5) {
                    filename = 'chart';
                }
                return filename;
            },
            /**
             * Exporting module required. Submit an SVG version of the chart to a server
             * along with some parameters for conversion.
             *
             * @sample highcharts/members/chart-exportchart/
             *         Export with no options
             * @sample highcharts/members/chart-exportchart-filename/
             *         PDF type and custom filename
             * @sample highcharts/members/chart-exportchart-custom-background/
             *         Different chart background in export
             * @sample stock/members/chart-exportchart/
             *         Export with Highstock
             *
             * @function Highcharts.Chart#exportChart
             *
             * @param {Highcharts.ExportingOptions} exportingOptions
             *        Exporting options in addition to those defined in
             *        [exporting](https://api.highcharts.com/highcharts/exporting).
             *
             * @param {Highcharts.Options} chartOptions
             *        Additional chart options for the exported chart. For example a
             *        different background color can be added here, or `dataLabels` for
             *        export only.
             *
             * @return {void}
             *
             * @requires modules/exporting
             */
            exportChart: function (exportingOptions, chartOptions) {
                var svg = this.getSVGForExport(exportingOptions,
                    chartOptions);
                // merge the options
                exportingOptions = merge(this.options.exporting, exportingOptions);
                // do the post
                H.post(exportingOptions.url, {
                    filename: exportingOptions.filename ? exportingOptions.filename.replace(/\//g, '-') : this.getFilename(),
                    type: exportingOptions.type,
                    // IE8 fails to post undefined correctly, so use 0
                    width: exportingOptions.width || 0,
                    scale: exportingOptions.scale,
                    svg: svg
                }, exportingOptions.formAttributes);
            },
            /**
            * Move the chart container(s) to another div.
            *
            * @function Highcharts#moveContainers
            *
            * @private
            *
            * @param {Highcharts.HTMLDOMElement} moveTo
            *        Move target
            * @return {void}
            */
            moveContainers: function (moveTo) {
                var chart = this;
                (chart.fixedDiv ? // When scrollablePlotArea is active (#9533)
                    [chart.fixedDiv, chart.scrollingContainer] :
                    [chart.container]).forEach(function (div) {
                    moveTo.appendChild(div);
                });
            },
            /**
            * Prepare chart and document before printing a chart.
            *
            * @function Highcharts#beforePrint
            *
            * @private
            *
            * @return {void}
            *
            * @fires Highcharts.Chart#event:beforePrint
            */
            beforePrint: function () {
                var chart = this,
                    body = doc.body,
                    printMaxWidth = chart.options.exporting.printMaxWidth,
                    printReverseInfo = {
                        childNodes: body.childNodes,
                        origDisplay: [],
                        resetParams: void 0
                    };
                var handleMaxWidth;
                chart.isPrinting = true;
                chart.pointer.reset(null, 0);
                fireEvent(chart, 'beforePrint');
                // Handle printMaxWidth
                handleMaxWidth = printMaxWidth && chart.chartWidth > printMaxWidth;
                if (handleMaxWidth) {
                    printReverseInfo.resetParams = [
                        chart.options.chart.width,
                        void 0,
                        false
                    ];
                    chart.setSize(printMaxWidth, void 0, false);
                }
                // hide all body content
                [].forEach.call(printReverseInfo.childNodes, function (node, i) {
                    if (node.nodeType === 1) {
                        printReverseInfo.origDisplay[i] = node.style.display;
                        node.style.display = 'none';
                    }
                });
                // pull out the chart
                chart.moveContainers(body);
                // Storage details for undo action after printing
                chart.printReverseInfo = printReverseInfo;
            },
            /**
            * Clena up after printing a chart.
            *
            * @function Highcharts#afterPrint
            *
            * @private
            *
            * @param {Highcharts.Chart} chart
            *        Chart that was (or suppose to be) printed
            * @return {void}
            *
            * @fires Highcharts.Chart#event:afterPrint
            */
            afterPrint: function () {
                var chart = this;
                if (!chart.printReverseInfo) {
                    return void 0;
                }
                var childNodes = chart.printReverseInfo.childNodes,
                    origDisplay = chart.printReverseInfo.origDisplay,
                    resetParams = chart.printReverseInfo.resetParams;
                // put the chart back in
                chart.moveContainers(chart.renderTo);
                // restore all body content
                [].forEach.call(childNodes, function (node, i) {
                    if (node.nodeType === 1) {
                        node.style.display = (origDisplay[i] || '');
                    }
                });
                chart.isPrinting = false;
                // Reset printMaxWidth
                if (resetParams) {
                    chart.setSize.apply(chart, resetParams);
                }
                delete chart.printReverseInfo;
                delete H.printingChart;
                fireEvent(chart, 'afterPrint');
            },
            /**
             * Exporting module required. Clears away other elements in the page and
             * prints the chart as it is displayed. By default, when the exporting
             * module is enabled, a context button with a drop down menu in the upper
             * right corner accesses this function.
             *
             * @sample highcharts/members/chart-print/
             *         Print from a HTML button
             *
             * @function Highcharts.Chart#print
             *
             * @return {void}
             *
             * @fires Highcharts.Chart#event:beforePrint
             * @fires Highcharts.Chart#event:afterPrint
             *
             * @requires modules/exporting
             */
            print: function () {
                var chart = this;
                if (chart.isPrinting) { // block the button while in printing mode
                    return;
                }
                H.printingChart = chart;
                if (!H.isSafari) {
                    chart.beforePrint();
                }
                // Give the browser time to draw WebGL content, an issue that randomly
                // appears (at least) in Chrome ~67 on the Mac (#8708).
                setTimeout(function () {
                    win.focus(); // #1510
                    win.print();
                    // allow the browser to prepare before reverting
                    if (!H.isSafari) {
                        setTimeout(function () {
                            chart.afterPrint();
                        }, 1000);
                    }
                }, 1);
            },
            /**
             * Display a popup menu for choosing the export type.
             *
             * @private
             * @function Highcharts.Chart#contextMenu
             * @param {string} className
             *        An identifier for the menu.
             * @param {Array<string|Highcharts.ExportingMenuObject>} items
             *        A collection with text and onclicks for the items.
             * @param {number} x
             *        The x position of the opener button
             * @param {number} y
             *        The y position of the opener button
             * @param {number} width
             *        The width of the opener button
             * @param {number} height
             *        The height of the opener button
             * @return {void}
             * @requires modules/exporting
             */
            contextMenu: function (className, items, x, y, width, height, button) {
                var chart = this,
                    navOptions = chart.options.navigation,
                    chartWidth = chart.chartWidth,
                    chartHeight = chart.chartHeight,
                    cacheName = 'cache-' + className,
                    menu = chart[cacheName],
                    menuPadding = Math.max(width,
                    height), // for mouse leave detection
                    innerMenu,
                    menuStyle;
                // create the menu only the first time
                if (!menu) {
                    // create a HTML element above the SVG
                    chart.exportContextMenu = chart[cacheName] = menu =
                        createElement('div', {
                            className: className
                        }, {
                            position: 'absolute',
                            zIndex: 1000,
                            padding: menuPadding + 'px',
                            pointerEvents: 'auto'
                        }, chart.fixedDiv || chart.container);
                    innerMenu = createElement('ul', { className: 'highcharts-menu' }, {
                        listStyle: 'none',
                        margin: 0,
                        padding: 0
                    }, menu);
                    // Presentational CSS
                    if (!chart.styledMode) {
                        css(innerMenu, extend({
                            MozBoxShadow: '3px 3px 10px #888',
                            WebkitBoxShadow: '3px 3px 10px #888',
                            boxShadow: '3px 3px 10px #888'
                        }, navOptions.menuStyle));
                    }
                    // hide on mouse out
                    menu.hideMenu = function () {
                        css(menu, { display: 'none' });
                        if (button) {
                            button.setState(0);
                        }
                        chart.openMenu = false;
                        css(chart.renderTo, { overflow: 'hidden' }); // #10361
                        U.clearTimeout(menu.hideTimer);
                        fireEvent(chart, 'exportMenuHidden');
                    };
                    // Hide the menu some time after mouse leave (#1357)
                    chart.exportEvents.push(addEvent(menu, 'mouseleave', function () {
                        menu.hideTimer = win.setTimeout(menu.hideMenu, 500);
                    }), addEvent(menu, 'mouseenter', function () {
                        U.clearTimeout(menu.hideTimer);
                    }), 
                    // Hide it on clicking or touching outside the menu (#2258,
                    // #2335, #2407)
                    addEvent(doc, 'mouseup', function (e) {
                        if (!chart.pointer.inClass(e.target, className)) {
                            menu.hideMenu();
                        }
                    }), addEvent(menu, 'click', function () {
                        if (chart.openMenu) {
                            menu.hideMenu();
                        }
                    }));
                    // create the items
                    items.forEach(function (item) {
                        if (typeof item === 'string') {
                            item = chart.options.exporting
                                .menuItemDefinitions[item];
                        }
                        if (isObject(item, true)) {
                            var element;
                            if (item.separator) {
                                element = createElement('hr', null, null, innerMenu);
                            }
                            else {
                                // When chart initialized with the table,
                                // wrong button text displayed, #14352.
                                if (item.textKey === 'viewData' && chart.isDataTableVisible) {
                                    item.textKey = 'hideData';
                                }
                                element = createElement('li', {
                                    className: 'highcharts-menu-item',
                                    onclick: function (e) {
                                        if (e) { // IE7
                                            e.stopPropagation();
                                        }
                                        menu.hideMenu();
                                        if (item.onclick) {
                                            item.onclick
                                                .apply(chart, arguments);
                                        }
                                    }
                                }, null, innerMenu);
                                element.appendChild(doc.createTextNode(item.text ||
                                    chart.options.lang[item.textKey]));
                                if (!chart.styledMode) {
                                    element.onmouseover = function () {
                                        css(this, navOptions.menuItemHoverStyle);
                                    };
                                    element.onmouseout = function () {
                                        css(this, navOptions.menuItemStyle);
                                    };
                                    css(element, extend({
                                        cursor: 'pointer'
                                    }, navOptions.menuItemStyle));
                                }
                            }
                            // Keep references to menu divs to be able to destroy them
                            chart.exportDivElements.push(element);
                        }
                    });
                    // Keep references to menu and innerMenu div to be able to destroy
                    // them
                    chart.exportDivElements.push(innerMenu, menu);
                    chart.exportMenuWidth = menu.offsetWidth;
                    chart.exportMenuHeight = menu.offsetHeight;
                }
                menuStyle = { display: 'block' };
                // if outside right, right align it
                if (x + chart.exportMenuWidth > chartWidth) {
                    menuStyle.right = (chartWidth - x - width - menuPadding) + 'px';
                }
                else {
                    menuStyle.left = (x - menuPadding) + 'px';
                }
                // if outside bottom, bottom align it
                if (y + height + chart.exportMenuHeight > chartHeight &&
                    button.alignOptions.verticalAlign !== 'top') {
                    menuStyle.bottom = (chartHeight - y - menuPadding) + 'px';
                }
                else {
                    menuStyle.top = (y + height - menuPadding) + 'px';
                }
                css(menu, menuStyle);
                css(chart.renderTo, { overflow: '' }); // #10361
                chart.openMenu = true;
                fireEvent(chart, 'exportMenuShown');
            },
            /**
             * Add the export button to the chart, with options.
             *
             * @private
             * @function Highcharts.Chart#addButton
             * @param {Highcharts.NavigationButtonOptions} options
             * @return {void}
             * @requires modules/exporting
             */
            addButton: function (options) {
                var chart = this,
                    renderer = chart.renderer,
                    btnOptions = merge(chart.options.navigation.buttonOptions,
                    options),
                    onclick = btnOptions.onclick,
                    menuItems = btnOptions.menuItems,
                    symbol,
                    button,
                    symbolSize = btnOptions.symbolSize || 12;
                if (!chart.btnCount) {
                    chart.btnCount = 0;
                }
                // Keeps references to the button elements
                if (!chart.exportDivElements) {
                    chart.exportDivElements = [];
                    chart.exportSVGElements = [];
                }
                if (btnOptions.enabled === false) {
                    return;
                }
                var attr = btnOptions.theme,
                    states = attr.states,
                    hover = states && states.hover,
                    select = states && states.select,
                    callback;
                if (!chart.styledMode) {
                    attr.fill = pick(attr.fill, palette.backgroundColor);
                    attr.stroke = pick(attr.stroke, 'none');
                }
                delete attr.states;
                if (onclick) {
                    callback = function (e) {
                        if (e) {
                            e.stopPropagation();
                        }
                        onclick.call(chart, e);
                    };
                }
                else if (menuItems) {
                    callback = function (e) {
                        // consistent with onclick call (#3495)
                        if (e) {
                            e.stopPropagation();
                        }
                        chart.contextMenu(button.menuClassName, menuItems, button.translateX, button.translateY, button.width, button.height, button);
                        button.setState(2);
                    };
                }
                if (btnOptions.text && btnOptions.symbol) {
                    attr.paddingLeft = pick(attr.paddingLeft, 30);
                }
                else if (!btnOptions.text) {
                    extend(attr, {
                        width: btnOptions.width,
                        height: btnOptions.height,
                        padding: 0
                    });
                }
                if (!chart.styledMode) {
                    attr['stroke-linecap'] = 'round';
                    attr.fill = pick(attr.fill, palette.backgroundColor);
                    attr.stroke = pick(attr.stroke, 'none');
                }
                button = renderer
                    .button(btnOptions.text, 0, 0, callback, attr, hover, select)
                    .addClass(options.className)
                    .attr({
                    title: pick(chart.options.lang[btnOptions._titleKey || btnOptions.titleKey], '')
                });
                button.menuClassName = (options.menuClassName ||
                    'highcharts-menu-' + chart.btnCount++);
                if (btnOptions.symbol) {
                    symbol = renderer
                        .symbol(btnOptions.symbol, btnOptions.symbolX - (symbolSize / 2), btnOptions.symbolY - (symbolSize / 2), symbolSize, symbolSize
                    // If symbol is an image, scale it (#7957)
                    , {
                        width: symbolSize,
                        height: symbolSize
                    })
                        .addClass('highcharts-button-symbol')
                        .attr({
                        zIndex: 1
                    })
                        .add(button);
                    if (!chart.styledMode) {
                        symbol.attr({
                            stroke: btnOptions.symbolStroke,
                            fill: btnOptions.symbolFill,
                            'stroke-width': btnOptions.symbolStrokeWidth || 1
                        });
                    }
                }
                button
                    .add(chart.exportingGroup)
                    .align(extend(btnOptions, {
                    width: button.width,
                    x: pick(btnOptions.x, chart.buttonOffset) // #1654
                }), true, 'spacingBox');
                chart.buttonOffset += ((button.width + btnOptions.buttonSpacing) *
                    (btnOptions.align === 'right' ? -1 : 1));
                chart.exportSVGElements.push(button, symbol);
            },
            /**
             * Destroy the export buttons.
             * @private
             * @function Highcharts.Chart#destroyExport
             * @param {global.Event} [e]
             * @return {void}
             * @requires modules/exporting
             */
            destroyExport: function (e) {
                var chart = e ? e.target : this,
                    exportSVGElements = chart.exportSVGElements,
                    exportDivElements = chart.exportDivElements,
                    exportEvents = chart.exportEvents,
                    cacheName;
                // Destroy the extra buttons added
                if (exportSVGElements) {
                    exportSVGElements.forEach(function (elem, i) {
                        // Destroy and null the svg elements
                        if (elem) { // #1822
                            elem.onclick = elem.ontouchstart = null;
                            cacheName = 'cache-' + elem.menuClassName;
                            if (chart[cacheName]) {
                                delete chart[cacheName];
                            }
                            chart.exportSVGElements[i] = elem.destroy();
                        }
                    });
                    exportSVGElements.length = 0;
                }
                // Destroy the exporting group
                if (chart.exportingGroup) {
                    chart.exportingGroup.destroy();
                    delete chart.exportingGroup;
                }
                // Destroy the divs for the menu
                if (exportDivElements) {
                    exportDivElements.forEach(function (elem, i) {
                        // Remove the event handler
                        U.clearTimeout(elem.hideTimer); // #5427
                        removeEvent(elem, 'mouseleave');
                        // Remove inline events
                        chart.exportDivElements[i] =
                            elem.onmouseout =
                                elem.onmouseover =
                                    elem.ontouchstart =
                                        elem.onclick = null;
                        // Destroy the div by moving to garbage bin
                        discardElement(elem);
                    });
                    exportDivElements.length = 0;
                }
                if (exportEvents) {
                    exportEvents.forEach(function (unbind) {
                        unbind();
                    });
                    exportEvents.length = 0;
                }
            }
            /* eslint-enable no-invalid-this, valid-jsdoc */
        });
        // These ones are translated to attributes rather than styles
        SVGRenderer.prototype.inlineToAttributes = [
            'fill',
            'stroke',
            'strokeLinecap',
            'strokeLinejoin',
            'strokeWidth',
            'textAnchor',
            'x',
            'y'
        ];
        // These CSS properties are not inlined. Remember camelCase.
        SVGRenderer.prototype.inlineBlacklist = [
            /-/,
            /^(clipPath|cssText|d|height|width)$/,
            /^font$/,
            /[lL]ogical(Width|Height)$/,
            /perspective/,
            /TapHighlightColor/,
            /^transition/,
            /^length$/ // #7700
            // /^text (border|color|cursor|height|webkitBorder)/
        ];
        SVGRenderer.prototype.unstyledElements = [
            'clipPath',
            'defs',
            'desc'
        ];
        /**
         * Analyze inherited styles from stylesheets and add them inline
         *
         * @private
         * @function Highcharts.Chart#inlineStyles
         * @return {void}
         *
         * @todo: What are the border styles for text about? In general, text has a lot
         * of properties.
         * @todo: Make it work with IE9 and IE10.
         *
         * @requires modules/exporting
         */
        Chart.prototype.inlineStyles = function () {
            var renderer = this.renderer,
                inlineToAttributes = renderer.inlineToAttributes,
                blacklist = renderer.inlineBlacklist,
                whitelist = renderer.inlineWhitelist, // For IE
                unstyledElements = renderer.unstyledElements,
                defaultStyles = {},
                dummySVG,
                iframe,
                iframeDoc;
            // Create an iframe where we read default styles without pollution from this
            // body
            iframe = doc.createElement('iframe');
            css(iframe, {
                width: '1px',
                height: '1px',
                visibility: 'hidden'
            });
            doc.body.appendChild(iframe);
            iframeDoc = iframe.contentWindow.document;
            iframeDoc.open();
            iframeDoc.write('<svg xmlns="http://www.w3.org/2000/svg"></svg>');
            iframeDoc.close();
            /**
             * Make hyphenated property names out of camelCase
             * @private
             * @param {string} prop
             *        Property name in camelCase
             * @return {string}
             *         Hyphenated property name
             */
            function hyphenate(prop) {
                return prop.replace(/([A-Z])/g, function (a, b) {
                    return '-' + b.toLowerCase();
                });
            }
            /**
             * Call this on all elements and recurse to children
             * @private
             * @param {Highcharts.HTMLDOMElement} node
             *        Element child
             * @return {void}
             */
            function recurse(node) {
                var styles,
                    parentStyles,
                    cssText = '',
                    dummy,
                    styleAttr,
                    blacklisted,
                    whitelisted,
                    i;
                /**
                 * Check computed styles and whether they are in the white/blacklist for
                 * styles or atttributes.
                 * @private
                 * @param {string} val
                 *        Style value
                 * @param {string} prop
                 *        Style property name
                 * @return {void}
                 */
                function filterStyles(val, prop) {
                    // Check against whitelist & blacklist
                    blacklisted = whitelisted = false;
                    if (whitelist) {
                        // Styled mode in IE has a whitelist instead.
                        // Exclude all props not in this list.
                        i = whitelist.length;
                        while (i-- && !whitelisted) {
                            whitelisted = whitelist[i].test(prop);
                        }
                        blacklisted = !whitelisted;
                    }
                    // Explicitly remove empty transforms
                    if (prop === 'transform' && val === 'none') {
                        blacklisted = true;
                    }
                    i = blacklist.length;
                    while (i-- && !blacklisted) {
                        blacklisted = (blacklist[i].test(prop) ||
                            typeof val === 'function');
                    }
                    if (!blacklisted) {
                        // If parent node has the same style, it gets inherited, no need
                        // to inline it. Top-level props should be diffed against parent
                        // (#7687).
                        if ((parentStyles[prop] !== val || node.nodeName === 'svg') &&
                            defaultStyles[node.nodeName][prop] !== val) {
                            // Attributes
                            if (!inlineToAttributes ||
                                inlineToAttributes.indexOf(prop) !== -1) {
                                if (val) {
                                    node.setAttribute(hyphenate(prop), val);
                                }
                                // Styles
                            }
                            else {
                                cssText += hyphenate(prop) + ':' + val + ';';
                            }
                        }
                    }
                }
                if (node.nodeType === 1 &&
                    unstyledElements.indexOf(node.nodeName) === -1) {
                    styles = win.getComputedStyle(node, null);
                    parentStyles = node.nodeName === 'svg' ?
                        {} :
                        win.getComputedStyle(node.parentNode, null);
                    // Get default styles from the browser so that we don't have to add
                    // these
                    if (!defaultStyles[node.nodeName]) {
                        /*
                        if (!dummySVG) {
                            dummySVG = doc.createElementNS(H.SVG_NS, 'svg');
                            dummySVG.setAttribute('version', '1.1');
                            doc.body.appendChild(dummySVG);
                        }
                        */
                        dummySVG = iframeDoc.getElementsByTagName('svg')[0];
                        dummy = iframeDoc.createElementNS(node.namespaceURI, node.nodeName);
                        dummySVG.appendChild(dummy);
                        // Copy, so we can remove the node
                        defaultStyles[node.nodeName] = merge(win.getComputedStyle(dummy, null));
                        // Remove default fill, otherwise text disappears when exported
                        if (node.nodeName === 'text') {
                            delete defaultStyles.text.fill;
                        }
                        dummySVG.removeChild(dummy);
                    }
                    // Loop through all styles and add them inline if they are ok
                    if (H.isFirefox || H.isMS) {
                        // Some browsers put lots of styles on the prototype
                        for (var p in styles) { // eslint-disable-line guard-for-in
                            filterStyles(styles[p], p);
                        }
                    }
                    else {
                        objectEach(styles, filterStyles);
                    }
                    // Apply styles
                    if (cssText) {
                        styleAttr = node.getAttribute('style');
                        node.setAttribute('style', (styleAttr ? styleAttr + ';' : '') + cssText);
                    }
                    // Set default stroke width (needed at least for IE)
                    if (node.nodeName === 'svg') {
                        node.setAttribute('stroke-width', '1px');
                    }
                    if (node.nodeName === 'text') {
                        return;
                    }
                    // Recurse
                    [].forEach.call(node.children || node.childNodes, recurse);
                }
            }
            /**
             * Remove the dummy objects used to get defaults
             * @private
             * @return {void}
             */
            function tearDown() {
                dummySVG.parentNode.removeChild(dummySVG);
                // Remove trash from DOM that stayed after each exporting
                iframe.parentNode.removeChild(iframe);
            }
            recurse(this.container.querySelector('svg'));
            tearDown();
        };
        H.Renderer.prototype.symbols.menu = function (x, y, width, height) {
            var arr = [
                    ['M',
                x,
                y + 2.5],
                    ['L',
                x + width,
                y + 2.5],
                    ['M',
                x,
                y + height / 2 + 0.5],
                    ['L',
                x + width,
                y + height / 2 + 0.5],
                    ['M',
                x,
                y + height - 1.5],
                    ['L',
                x + width,
                y + height - 1.5]
                ];
            return arr;
        };
        H.Renderer.prototype.symbols.menuball = function (x, y, width, height) {
            var path = [],
                h = (height / 3) - 2;
            path = path.concat(this.circle(width - h, y, h, h), this.circle(width - h, y + h + 4, h, h), this.circle(width - h, y + 2 * (h + 4), h, h));
            return path;
        };
        /**
         * Add the buttons on chart load
         * @private
         * @function Highcharts.Chart#renderExporting
         * @return {void}
         * @requires modules/exporting
         */
        Chart.prototype.renderExporting = function () {
            var chart = this,
                exportingOptions = chart.options.exporting,
                buttons = exportingOptions.buttons,
                isDirty = chart.isDirtyExporting || !chart.exportSVGElements;
            chart.buttonOffset = 0;
            if (chart.isDirtyExporting) {
                chart.destroyExport();
            }
            if (isDirty && exportingOptions.enabled !== false) {
                chart.exportEvents = [];
                chart.exportingGroup = chart.exportingGroup ||
                    chart.renderer.g('exporting-group').attr({
                        zIndex: 3 // #4955, // #8392
                    }).add();
                objectEach(buttons, function (button) {
                    chart.addButton(button);
                });
                chart.isDirtyExporting = false;
            }
        };
        /* eslint-disable no-invalid-this */
        // Add update methods to handle chart.update and chart.exporting.update and
        // chart.navigation.update. These must be added to the chart instance rather
        // than the Chart prototype in order to use the chart instance inside the update
        // function.
        addEvent(Chart, 'init', function () {
            var chart = this;
            /**
             * @private
             * @param {"exporting"|"navigation"} prop
             *        Property name in option root
             * @param {Highcharts.ExportingOptions|Highcharts.NavigationOptions} options
             *        Options to update
             * @param {boolean} [redraw=true]
             *        Whether to redraw
             * @return {void}
             */
            function update(prop, options, redraw) {
                chart.isDirtyExporting = true;
                merge(true, chart.options[prop], options);
                if (pick(redraw, true)) {
                    chart.redraw();
                }
            }
            chart.exporting = {
                update: function (options, redraw) {
                    update('exporting', options, redraw);
                }
            };
            // Register update() method for navigation. Can not be set the same way as
            // for exporting, because navigation options are shared with bindings which
            // has separate update() logic.
            chartNavigationMixin.addUpdate(function (options, redraw) {
                update('navigation', options, redraw);
            }, chart);
        });
        /* eslint-enable no-invalid-this */
        Chart.prototype.callbacks.push(function (chart) {
            chart.renderExporting();
            addEvent(chart, 'redraw', chart.renderExporting);
            // Destroy the export elements at chart destroy
            addEvent(chart, 'destroy', chart.destroyExport);
            // Uncomment this to see a button directly below the chart, for quick
            // testing of export
            /*
            var button,
                viewImage,
                viewSource;
            if (!chart.renderer.forExport) {
                viewImage = function () {
                    var div = doc.createElement('div');
                    div.innerHTML = chart.getSVGForExport();
                    chart.renderTo.parentNode.appendChild(div);
                };

                viewSource = function () {
                    var pre = doc.createElement('pre');
                    pre.innerHTML = chart.getSVGForExport()
                        .replace(/</g, '\n&lt;')
                        .replace(/>/g, '&gt;');
                    chart.renderTo.parentNode.appendChild(pre);
                };

                viewImage();

                // View SVG Image
                button = doc.createElement('button');
                button.innerHTML = 'View SVG Image';
                chart.renderTo.parentNode.appendChild(button);
                button.onclick = viewImage;

                // View SVG Source
                button = doc.createElement('button');
                button.innerHTML = 'View SVG Source';
                chart.renderTo.parentNode.appendChild(button);
                button.onclick = viewSource;
            }
            //*/
        });

    });
    _registerModule(_modules, 'masters/modules/exporting.src.js', [], function () {


    });
}));