/**
 * @license Highcharts JS v6.1.0 (2018-04-13)
 * Exporting module
 *
 * (c) 2010-2017 Torstein Honsi
 *
 * License: www.highcharts.com/license
 */
'use strict';
(function (factory) {
	if (typeof module === 'object' && module.exports) {
		module.exports = factory;
	} else {
		factory(Highcharts);
	}
}(function (Highcharts) {
	(function (H) {
		/**
		 * Exporting module
		 *
		 * (c) 2010-2017 Torstein Honsi
		 *
		 * License: www.highcharts.com/license
		 */

		/* eslint indent:0 */

		// create shortcuts
		var defaultOptions = H.defaultOptions,
		    doc = H.doc,
		    Chart = H.Chart,
		    addEvent = H.addEvent,
		    removeEvent = H.removeEvent,
		    fireEvent = H.fireEvent,
		    createElement = H.createElement,
		    discardElement = H.discardElement,
		    css = H.css,
		    merge = H.merge,
		    pick = H.pick,
		    each = H.each,
		    objectEach = H.objectEach,
		    extend = H.extend,
		    isTouchDevice = H.isTouchDevice,
		    win = H.win,
		    userAgent = win.navigator.userAgent,
		    SVGRenderer = H.SVGRenderer,
		    symbols = H.Renderer.prototype.symbols,
		    isMSBrowser = /Edge\/|Trident\/|MSIE /.test(userAgent),
		    isFirefoxBrowser = /firefox/i.test(userAgent);

		// Add language
		extend(defaultOptions.lang, {
		    /**
		     * Exporting module only. The text for the menu item to print the chart.
		     *
		     * @type {String}
		     * @default Print chart
		     * @since 3.0.1
		     * @apioption lang.printChart
		     */
		    printChart: 'Print chart',
		    /**
		     * Exporting module only. The text for the PNG download menu item.
		     *
		     * @type {String}
		     * @default Download PNG image
		     * @since 2.0
		     * @apioption lang.downloadPNG
		     */
		    downloadPNG: 'Download PNG image',
		    /**
		     * Exporting module only. The text for the JPEG download menu item.
		     *
		     * @type {String}
		     * @default Download JPEG image
		     * @since 2.0
		     * @apioption lang.downloadJPEG
		     */
		    downloadJPEG: 'Download JPEG image',
		    /**
		     * Exporting module only. The text for the PDF download menu item.
		     *
		     * @type {String}
		     * @default Download PDF document
		     * @since 2.0
		     * @apioption lang.downloadPDF
		     */
		    downloadPDF: 'Download PDF document',
		    /**
		     * Exporting module only. The text for the SVG download menu item.
		     *
		     * @type {String}
		     * @default Download SVG vector image
		     * @since 2.0
		     * @apioption lang.downloadSVG
		     */
		    downloadSVG: 'Download SVG vector image',
		    /**
		     * Exporting module menu. The tooltip title for the context menu holding
		     * print and export menu items.
		     *
		     * @type {String}
		     * @default Chart context menu
		     * @since 3.0
		     * @apioption lang.contextButtonTitle
		     */
		    contextButtonTitle: 'Chart context menu'
		});

		// 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.
		defaultOptions.navigation = {
		    buttonOptions: {
		        theme: {},

		        /**
		         * Whether to enable buttons.
		         *
		         * @type {Boolean}
		         * @sample highcharts/navigation/buttonoptions-enabled/
		         *         Exporting module loaded but buttons disabled
		         * @default true
		         * @since 2.0
		         * @apioption navigation.buttonOptions.enabled
		         */

		        /**
		         * The pixel size of the symbol on the button.
		         *
		         * @type {Number}
		         * @sample highcharts/navigation/buttonoptions-height/
		         *         Bigger buttons
		         * @default 14
		         * @since 2.0
		         * @apioption navigation.buttonOptions.symbolSize
		         */
		        symbolSize: 14,

		        /**
		         * The x position of the center of the symbol inside the button.
		         *
		         * @type {Number}
		         * @sample highcharts/navigation/buttonoptions-height/
		         *         Bigger buttons
		         * @default 12.5
		         * @since 2.0
		         * @apioption navigation.buttonOptions.symbolX
		         */
		        symbolX: 12.5,

		        /**
		         * The y position of the center of the symbol inside the button.
		         *
		         * @type {Number}
		         * @sample highcharts/navigation/buttonoptions-height/
		         *         Bigger buttons
		         * @default 10.5
		         * @since 2.0
		         * @apioption navigation.buttonOptions.symbolY
		         */
		        symbolY: 10.5,

		        /**
		         * Alignment for the buttons.
		         *
		         * @validvalue ["left", "center", "right"]
		         * @type {String}
		         * @sample highcharts/navigation/buttonoptions-align/
		         *         Center aligned
		         * @default right
		         * @since 2.0
		         * @apioption navigation.buttonOptions.align
		         */
		        align: 'right',

		        /**
		         * The pixel spacing between buttons.
		         *
		         * @type {Number}
		         * @default 3
		         * @since 2.0
		         * @apioption navigation.buttonOptions.buttonSpacing
		         */
		        buttonSpacing: 3,

		        /**
		         * Pixel height of the buttons.
		         *
		         * @type {Number}
		         * @sample highcharts/navigation/buttonoptions-height/
		         *         Bigger buttons
		         * @default 22
		         * @since 2.0
		         * @apioption navigation.buttonOptions.height
		         */
		        height: 22,

		        /**
		         * A text string to add to the individual button.
		         *
		         * @type {String}
		         * @sample highcharts/exporting/buttons-text/
		         *         Full text button
		         * @sample highcharts/exporting/buttons-text-symbol/
		         *         Combined symbol and text
		         * @default null
		         * @since 3.0
		         * @apioption navigation.buttonOptions.text
		         */

		        /**
		         * The vertical offset of the button's position relative to its
		         * `verticalAlign`.
		         *
		         * @type {Number}
		         * @sample highcharts/navigation/buttonoptions-verticalalign/
		         *         Buttons at lower right
		         * @default 0
		         * @since 2.0
		         * @apioption navigation.buttonOptions.y
		         */

		        /**
		         * The vertical alignment of the buttons. Can be one of "top", "middle"
		         * or "bottom".
		         *
		         * @validvalue ["top", "middle", "bottom"]
		         * @type {String}
		         * @sample highcharts/navigation/buttonoptions-verticalalign/
		         *         Buttons at lower right
		         * @default top
		         * @since 2.0
		         * @apioption navigation.buttonOptions.verticalAlign
		         */
		        verticalAlign: 'top',

		        /**
		         * The pixel width of the button.
		         *
		         * @type {Number}
		         * @sample highcharts/navigation/buttonoptions-height/
		         *         Bigger buttons
		         * @default 24
		         * @since 2.0
		         * @apioption navigation.buttonOptions.width
		         */
		        width: 24
		    }
		};


		// Presentational attributes

		merge(true, defaultOptions.navigation,
		/**
		 * A collection of options for buttons and menus appearing in the exporting
		 * module.
		 * @type {Object}
		 * @optionparent navigation
		 */
		{

		    /**
		     * CSS styles for the popup menu appearing by default when the export
		     * icon is clicked. This menu is rendered in HTML.
		     *
		     * @type {CSSObject}
		     * @see In styled mode, the menu is styled with the `.highcharts-menu`
		     * class.
		     * @sample highcharts/navigation/menustyle/ Light gray menu background
		     * @default { "border": "1px solid #999999", "background": "#ffffff", "padding": "5px 0" }
		     * @since 2.0
		     */
		    menuStyle: {
		        border: '1px solid #999999',
		        background: '#ffffff',
		        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.
		     *
		     * @type {CSSObject}
		     * @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
		     * @default { "padding": "0.5em 1em", "color": "#333333", "background": "none" }
		     * @since 2.0
		     */
		    menuItemStyle: {
		        padding: '0.5em 1em',
		        background: 'none',
		        color: '#333333',
		        /**
		         * Defaults to `14px` on touch devices and `11px` on desktop.
		         * @type {String}
		         */
		        fontSize: isTouchDevice ? '14px' : '11px',
		        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.
		     *
		     * @type {CSSObject}
		     * @see    In styled mode, the menu items are styled with the
		     *         `.highcharts-menu-item` class.
		     * @sample highcharts/navigation/menuitemhoverstyle/ Bold text on hover
		     * @default { "background": "#335cad", "color": "#ffffff" }
		     * @since 2.0
		     */
		    menuItemHoverStyle: {
		        background: '#335cad',
		        color: '#ffffff'
		    },

		    /**
		     * 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.
		     *
		     */
		    buttonOptions: {

		        /**
		         * Fill color for the symbol within the button.
		         *
		         * @type {Color}
		         * @sample highcharts/navigation/buttonoptions-symbolfill/
		         *         Blue symbol stroke for one of the buttons
		         * @default #666666
		         * @since 2.0
		         */
		        symbolFill: '#666666',

		        /**
		         * The color of the symbol's stroke or line.
		         *
		         * @type {Color}
		         * @sample highcharts/navigation/buttonoptions-symbolstroke/
		         *         Blue symbol stroke
		         * @default #666666
		         * @since 2.0
		         */
		        symbolStroke: '#666666',

		        /**
		         * The pixel stroke width of the symbol on the button.
		         *
		         * @type {Number}
		         * @sample highcharts/navigation/buttonoptions-height/
		         *         Bigger buttons
		         * @default 1
		         * @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.
		         *
		         * @type {Object}
		         * @sample highcharts/navigation/buttonoptions-theme/
		         *         Theming the buttons
		         * @since 3.0
		         */
		        theme: {
		            /**
		             * The default fill exists only to capture hover events.
		             * @type {String}
		             */
		            fill: '#ffffff',
		            /**
		             * @type {String}
		             */
		            stroke: 'none',
		            /**
		             * @type {Number}
		             * @default 5
		             */
		            padding: 5
		        }
		    }
		});



		// Add the export related options

		/**
		 * Options for the exporting module. For an overview on the matter, see
		 * [the docs](http://www.highcharts.com/docs/export-module/export-module-overview).
		 * @type {Object}
		 * @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 an exported chart. 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.
		     *
		     * @type {Object}
		     * @sample {highcharts} highcharts/exporting/chartoptions-data-labels/
		     *         Added data labels
		     * @sample {highstock} highcharts/exporting/chartoptions-data-labels/
		     *         Added data labels
		     * @default null
		     * @apioption exporting.chartOptions
		     */

		    /**
		     * Whether to enable the exporting module. Disabling the module will
		     * hide the context button, but API methods will still be available.
		     *
		     * @type {Boolean}
		     * @sample {highcharts} highcharts/exporting/enabled-false/
		     *         Exporting module is loaded but disabled
		     * @sample {highstock} highcharts/exporting/enabled-false/
		     *         Exporting module is loaded but disabled
		     * @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.
		     *
		     * @type {Function}
		     * @see [fallbackToExportServer](#exporting.fallbackToExportServer)
		     * @default undefined
		     * @since 5.0.0
		     * @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.
		     *
		     * @type {Boolean}
		     * @default true
		     * @since 4.1.8
		     * @apioption exporting.fallbackToExportServer
		     */

		    /**
		     * The filename, without extension, to use for the exported chart.
		     *
		     * @type {String}
		     * @sample {highcharts} highcharts/exporting/filename/ Custom file name
		     * @sample {highstock} highcharts/exporting/filename/ Custom file name
		     * @default chart
		     * @since 2.0
		     * @apioption exporting.filename
		     */

		    /**
		     * An object containing additional attributes 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 {Object}
		     * @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. The width exported raster image
		     * is then multiplied by [scale](#exporting.scale).
		     *
		     * @type {Number}
		     * @sample {highcharts} highcharts/exporting/sourcewidth/ Source size demo
		     * @sample {highstock} highcharts/exporting/sourcewidth/ Source size demo
		     * @sample {highmaps} maps/exporting/sourcewidth/ Source size demo
		     * @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).
		     *
		     * @type {Number}
		     * @sample {highcharts} highcharts/exporting/width/
		     *         Export to 200px wide images
		     * @sample {highstock} highcharts/exporting/width/
		     *         Export to 200px wide images
		     * @default undefined
		     * @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`.
		     *
		     * @validvalue ["image/png", "image/jpeg", "application/pdf", "image/svg+xml"]
		     * @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.
		     *
		     * @type {String}
		     * @default https://export.highcharts.com
		     * @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.
		     *
		     * @type {Number}
		     * @default 780
		     * @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),
		     *         [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.
		     *
		     */
		    buttons: {

		        /**
		         * Options for the export button.
		         *
		         * In styled mode, export button styles can be applied with the
		         * `.highcharts-contextbutton` class.
		         *
		         * @extends navigation.buttonOptions
		         */
		        contextButton: {

		            /**
		             * A click handler callback to use on the button directly instead of
		             * the popup menu.
		             *
		             * @type {Function}
		             * @sample highcharts/exporting/buttons-contextbutton-onclick/
		             *         Skip the menu and export the chart directly
		             * @since 2.0
		             * @apioption exporting.buttons.contextButton.onclick
		             */

		            /**
		             * See [navigation.buttonOptions.symbolFill](
		             * #navigation.buttonOptions.symbolFill).
		             *
		             * @type {Color}
		             * @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.
		             * @type {String}
		             */
		            className: 'highcharts-contextbutton',

		            /**
		             * The class name of the menu appearing from the button.
		             * @type {String}
		             */
		            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.
		             *
		             * @validvalue ["circle", "square", "diamond", "triangle", "triangle-down", "menu"]
		             * @type {String}
		             * @sample highcharts/exporting/buttons-contextbutton-symbol/
		             *         Use a circle for symbol
		             * @sample highcharts/exporting/buttons-contextbutton-symbol-custom/
		             *         Custom shape as symbol
		             * @default menu
		             * @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".
		             * @type {String}
		             */
		            _titleKey: 'contextButtonTitle',

		            /**
		             * 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 "Print" menu item plus one menu item
		             * for each of the available export types.
		             *
		             * Defaults to
		             * <pre>
		             * [
		             *    'printChart',
		             *    'separator',
		             *    'downloadPNG',
		             *    'downloadJPEG',
		             *    'downloadPDF',
		             *    'downloadSVG'
		             * ]
		             * </pre>
		             *
		             * @type {Array<String>|Array<Object>}
		              * @sample {highcharts} highcharts/exporting/menuitemdefinitions/
		              *         Menu item definitions
		              * @sample {highstock} highcharts/exporting/menuitemdefinitions/
		              *         Menu item definitions
		              * @sample {highmaps} highcharts/exporting/menuitemdefinitions/
		              *         Menu item definitions
		             * @since 2.0
		             */
		            menuItems: [
		                '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:
		     *
		     * <dl>
		     *
		     * <dt>onclick</dt>
		     *
		     * <dd>The click handler for the menu item</dd>
		     *
		     * <dt>text</dt>
		     *
		     * <dd>The text for the menu item</dd>
		     *
		     * <dt>textKey</dt>
		     *
		     * <dd>If internationalization is required, the key to a language string
		     * </dd>
		     *
		     * </dl>
		     *
		     * @type {Object}
		     * @sample {highcharts} highcharts/exporting/menuitemdefinitions/
		     *         Menu item definitions
		     * @sample {highstock} highcharts/exporting/menuitemdefinitions/
		     *         Menu item definitions
		     * @sample {highmaps} highcharts/exporting/menuitemdefinitions/
		     *         Menu item definitions
		     * @since 5.0.13
		     */
		    menuItemDefinitions: {

		        /**
		         * @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. Requires the exporting module.
		 *
		 * @type {Function}
		 * @context Chart
		 * @sample highcharts/chart/events-beforeprint-afterprint/
		 *         Rescale the chart to print
		 * @since 4.1.0
		 * @apioption chart.events.afterPrint
		 */

		/**
		 * Fires before a chart is printed through the context menu item or
		 * the `Chart.print` method. Requires the exporting module.
		 *
		 * @type {Function}
		 * @context Chart
		 * @sample highcharts/chart/events-beforeprint-afterprint/
		 *         Rescale the chart to print
		 * @since 4.1.0
		 * @apioption chart.events.beforePrint
		 */


		// Add the H.post utility
		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);
		};

		extend(Chart.prototype, /** @lends Highcharts.Chart.prototype */ {

		    /**
		     * 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
		     */
		    sanitizeSVG: function (svg, options) {
		        // Move HTML into a foreignObject
		        if (options && options.exporting && options.exporting.allowHTML) {
		            var html = svg.match(/<\/svg>(.*?$)/);
		            if (html && html[1]) {
		                html = '<foreignObject x="0" y="0" ' +
		                            'width="' + options.chart.width + '" ' +
		                            'height="' + options.chart.height + '">' +
		                    '<body xmlns="http://www.w3.org/1999/xhtml">' +
		                    html[1] +
		                    '</body>' +
		                    '</foreignObject>';
		                svg = svg.replace('</svg>', html + '</svg>');
		            }
		        }

		        svg = svg
		            .replace(/zIndex="[^"]+"/g, '')
		            .replace(/isShadow="[^"]+"/g, '')
		            .replace(/symbolName="[^"]+"/g, '')
		            .replace(/jQuery[0-9]+="[^"]+"/g, '')
		            .replace(/url\(("|&quot;)(\S+)("|&quot;)\)/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/, ' ')
		            // Any HTML added to the container after the SVG (#894)
		            .replace(/<\/svg>.*?$/, '</svg>')
		            // 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
		     *
		     * @returns {String}
		     *          The unfiltered SVG of the chart.
		     */
		    getChartHTML: function () {
        
		        return this.container.innerHTML;
		    },

		    /**
		     * Return an SVG representation of the chart.
		     *
		     * @param  chartOptions {Options}
		     *         Additional chart options for the generated SVG representation.
		     *         For collections like `xAxis`, `yAxis` or `series`, the additional
		     *         options is either merged in to the orininal 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.
		     * @sample highcharts/members/chart-getsvg/
		     *         View the SVG from a button
		     */
		    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);


		        // 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$/.test(cssWidth) && parseInt(cssWidth, 10)) ||
		            600;
		        sourceHeight = options.exporting.sourceHeight ||
		            options.chart.height ||
		            (/px$/.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 = [];
		        each(chart.series, function (serie) {
		            seriesOptions = merge(serie.userOptions, { // #4912
		                animation: false, // turn off animation
		                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)
		        each(chart.axes, function (axis) {
		            if (!axis.userOptions.internalKey) { // #6444
		                axis.userOptions.internalKey = H.uniqueKey();
		            }
		        });

		        // generate the chart copy
		        chartCopy = new H.Chart(options, chart.callback);

		        // Axis options and series options  (#2022, #3900, #5982)
		        if (chartOptions) {
		            each(['xAxis', 'yAxis', 'series'], function (coll) {
		                var collOptions = {};
		                if (chartOptions[coll]) {
		                    collOptions[coll] = chartOptions[coll];
		                    chartCopy.update(collOptions);
		                }
		            });
		        }

		        // Reflect axis extremes in the export (#5924)
		        each(chart.axes, function (axis) {
		            var axisCopy = H.find(chartCopy.axes, function (copy) {
		                    return copy.options.internalKey ===
		                        axis.userOptions.internalKey;
		                }),
		                extremes = axis.getExtremes(),
		                userMin = extremes.userMin,
		                userMax = extremes.userMax;

		            if (axisCopy && (userMin !== undefined || userMax !== undefined)) {
		                axisCopy.setExtremes(userMin, userMax, true, false);
		            }
		        });

		        // Get the SVG from the container's innerHTML
		        svg = chartCopy.getChartHTML();

		        svg = chart.sanitizeSVG(svg, options);

		        // free up memory
		        options = null;
		        chartCopy.destroy();
		        discardElement(sandbox);

		        return svg;
		    },

		    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
		                    )
		                }
		            }
		        ));
		    },

		    /**
		     * Exporting module required. Submit an SVG version of the chart to a server
		     * along with some parameters for conversion.
		     * @param  {Object} exportingOptions
		     *         Exporting options in addition to those defined in {@link
		     *         https://api.highcharts.com/highcharts/exporting|exporting}.
		     * @param  {String} exportingOptions.filename
		     *         The file name for the export without extension.
		     * @param  {String} exportingOptions.url
		     *         The URL for the server module to do the conversion.
		     * @param  {Number} exportingOptions.width
		     *         The width of the PNG or JPG image generated on the server.
		     * @param  {String} exportingOptions.type
		     *         The MIME type of the converted image.
		     * @param  {Number} exportingOptions.sourceWidth
		     *         The pixel width of the source (in-page) chart.
		     * @param  {Number} exportingOptions.sourceHeight
		     *         The pixel height of the source (in-page) chart.
		     * @param  {Options} chartOptions
		     *         Additional chart options for the exported chart. For example a
		     *         different background color can be added here, or `dataLabels`
		     *         for export only.
		     *
		     * @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
		     */
		    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 || 'chart',
		            type: exportingOptions.type,
		            // IE8 fails to post undefined correctly, so use 0
		            width: exportingOptions.width || 0,
		            scale: exportingOptions.scale,
		            svg: svg
		        }, exportingOptions.formAttributes);

		    },

		    /**
		     * 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
		     */
		    print: function () {

		        var chart = this,
		            container = chart.container,
		            origDisplay = [],
		            origParent = container.parentNode,
		            body = doc.body,
		            childNodes = body.childNodes,
		            printMaxWidth = chart.options.exporting.printMaxWidth,
		            resetParams,
		            handleMaxWidth;

		        if (chart.isPrinting) { // block the button while in printing mode
		            return;
		        }

		        chart.isPrinting = true;
		        chart.pointer.reset(null, 0);

		        fireEvent(chart, 'beforePrint');

		        // Handle printMaxWidth
		        handleMaxWidth = printMaxWidth && chart.chartWidth > printMaxWidth;
		        if (handleMaxWidth) {
		            resetParams = [chart.options.chart.width, undefined, false];
		            chart.setSize(printMaxWidth, undefined, false);
		        }

		        // hide all body content
		        each(childNodes, function (node, i) {
		            if (node.nodeType === 1) {
		                origDisplay[i] = node.style.display;
		                node.style.display = 'none';
		            }
		        });

		        // pull out the chart
		        body.appendChild(container);

		        // print
		        win.focus(); // #1510
		        win.print();

		        // allow the browser to prepare before reverting
		        setTimeout(function () {

		            // put the chart back in
		            origParent.appendChild(container);

		            // restore all body content
		            each(childNodes, function (node, i) {
		                if (node.nodeType === 1) {
		                    node.style.display = origDisplay[i];
		                }
		            });

		            chart.isPrinting = false;

		            // Reset printMaxWidth
		            if (handleMaxWidth) {
		                chart.setSize.apply(chart, resetParams);
		            }

		            fireEvent(chart, 'afterPrint');

		        }, 1000);

		    },

		    /**
		     * Display a popup menu for choosing the export type.
		     *
		     * @private
		     *
		     * @param {String} className An identifier for the menu
		     * @param {Array} 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
		     */
		    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,
		            hide,
		            menuStyle;

		        // create the menu only the first time
		        if (!menu) {

		            // create a HTML element above the SVG
		            chart[cacheName] = menu = createElement('div', {
		                className: className
		            }, {
		                position: 'absolute',
		                zIndex: 1000,
		                padding: menuPadding + 'px'
		            }, chart.container);

		            innerMenu = createElement(
		                'div',
		                { className: 'highcharts-menu' },
		                null,
		                menu
		            );

            
		            // Presentational CSS
		            css(innerMenu, extend({
		                    MozBoxShadow: '3px 3px 10px #888',
		                    WebkitBoxShadow: '3px 3px 10px #888',
		                    boxShadow: '3px 3px 10px #888'
		                }, navOptions.menuStyle));
            

		            // hide on mouse out
		            hide = function () {
		                css(menu, { display: 'none' });
		                if (button) {
		                    button.setState(0);
		                }
		                chart.openMenu = false;
		            };

		            // Hide the menu some time after mouse leave (#1357)
		            chart.exportEvents.push(
		                addEvent(menu, 'mouseleave', function () {
		                    menu.hideTimer = setTimeout(hide, 500);
		                }),
		                addEvent(menu, 'mouseenter', function () {
		                    H.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)) {
		                        hide();
		                    }
		                })
		            );

		            // create the items
		            each(items, function (item) {

		                if (typeof item === 'string') {
		                    item = chart.options.exporting.menuItemDefinitions[item];
		                }

		                if (H.isObject(item, true)) {
		                    var element;

		                    if (item.separator) {
		                        element = createElement('hr', null, null, innerMenu);

		                    } else {
		                        element = createElement('div', {
		                            className: 'highcharts-menu-item',
		                            onclick: function (e) {
		                                if (e) { // IE7
		                                    e.stopPropagation();
		                                }
		                                hide();
		                                if (item.onclick) {
		                                    item.onclick.apply(chart, arguments);
		                                }
		                            },
		                            innerHTML: (
		                                item.text ||
		                                chart.options.lang[item.textKey]
		                            )
		                        }, null, innerMenu);

                        
		                        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);
		        chart.openMenu = true;
		    },

		    /**
		     * Add the export button to the chart, with options.
		     *
		     * @private
		     */
		    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;

		        delete attr.states;

		        if (onclick) {
		            callback = function (e) {
		                e.stopPropagation();
		                onclick.call(chart, e);
		            };

		        } else if (menuItems) {
		            callback = function () {
		                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, 25);

		        } else if (!btnOptions.text) {
		            extend(attr, {
		                width: btnOptions.width,
		                height: btnOptions.height,
		                padding: 0
		            });
		        }

		        button = renderer
		            .button(btnOptions.text, 0, 0, callback, attr, hover, select)
		            .addClass(options.className)
		            .attr({
                
		                'stroke-linecap': 'round',
                
		                title: pick(chart.options.lang[btnOptions._titleKey], ''),
		                zIndex: 3 // #4955
		            });
		        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);

            
		            symbol.attr({
		                stroke: btnOptions.symbolStroke,
		                fill: btnOptions.symbolFill,
		                'stroke-width': btnOptions.symbolStrokeWidth || 1
		            });
            
		        }

		        button.add()
		            .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
		     */
		    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) {
		            each(exportSVGElements, 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 divs for the menu
		        if (exportDivElements) {
		            each(exportDivElements, function (elem, i) {

		                // Remove the event handler
		                H.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) {
		            each(exportEvents, function (unbind) {
		                unbind();
		            });
		            exportEvents.length = 0;
		        }
		    }
		});




		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;
		};

		// Add the buttons on chart load
		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 = [];

		        objectEach(buttons, function (button) {
		            chart.addButton(button);
		        });

		        chart.isDirtyExporting = false;
		    }

		    // Destroy the export elements at chart destroy
		    addEvent(chart, 'destroy', chart.destroyExport);
		};

		Chart.prototype.callbacks.push(function (chart) {

		    function update(prop, options, redraw) {
		        chart.isDirtyExporting = true;
		        merge(true, chart.options[prop], options);
		        if (pick(redraw, true)) {
		            chart.redraw();
		        }

		    }

		    chart.renderExporting();

		    addEvent(chart, 'redraw', chart.renderExporting);

		    // Add update methods to handle chart.update and chart.exporting.update
		    // and chart.navigation.update.
		    each(['exporting', 'navigation'], function (prop) {
		        chart[prop] = {
		            update: function (options, redraw) {
		                update(prop, options, redraw);
		            }
		        };
		    });

		    // Uncomment this to see a button directly below the chart, for quick
		    // testing of export
		    /*
		    if (!chart.renderer.forExport) {
		        var button;

		        // View SVG Image
		        button = doc.createElement('button');
		        button.innerHTML = 'View SVG Image';
		        chart.renderTo.parentNode.appendChild(button);
		        button.onclick = function () {
		            var div = doc.createElement('div');
		            div.innerHTML = chart.getSVGForExport();
		            chart.renderTo.parentNode.appendChild(div);
		        };

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

	}(Highcharts));
}));
