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Register as an anonymous module.\n    define([\"chartist\"], function (Chartist) {\n      return (root.returnExportsGlobal = factory(Chartist));\n    });\n  } else if (typeof exports === 'object') {\n    // Node. Does not work with strict CommonJS, but\n    // only CommonJS-like enviroments that support module.exports,\n    // like Node.\n    module.exports = factory(require(\"chartist\"));\n  } else {\n    root['Chartist.plugins.tooltips'] = factory(Chartist);\n  }\n}(this, function (Chartist) {\n\n  /**\n   * Chartist.js plugin to display a data label on top of the points in a line chart.\n   *\n   */\n  /* global Chartist */\n  (function (window, document, Chartist) {\n    'use strict';\n\n    var defaultOptions = {\n      currency: undefined,\n      tooltipOffset: {\n        x: 0,\n        y: -20\n      },\n      appendToBody: false,\n      class: undefined,\n      pointClass: 'ct-point'\n    };\n\n    Chartist.plugins = Chartist.plugins || {};\n    Chartist.plugins.tooltip = function (options) {\n      options = Chartist.extend({}, defaultOptions, options);\n\n      return function tooltip(chart) {\n        var tooltipSelector = options.pointClass;\n        if (chart instanceof Chartist.Bar) {\n          tooltipSelector = 'ct-bar';\n        } else if (chart instanceof Chartist.Pie) {\n          // Added support for donut graph\n          if (chart.options.donut) {\n            tooltipSelector = 'ct-slice-donut';\n          } else {\n            tooltipSelector = 'ct-slice-pie';\n          }\n        }\n\n        var $chart = chart.container;\n        var $toolTip = $chart.querySelector('.chartist-tooltip');\n        if (!$toolTip) {\n          $toolTip = document.createElement('div');\n          $toolTip.className = (!options.class) ? 'chartist-tooltip' : 'chartist-tooltip ' + options.class;\n          if (!options.appendToBody) {\n            $chart.appendChild($toolTip);\n          } else {\n            document.body.appendChild($toolTip);\n          }\n        }\n        var height = $toolTip.offsetHeight;\n        var width = $toolTip.offsetWidth;\n\n        hide($toolTip);\n\n        function on(event, selector, callback) {\n          $chart.addEventListener(event, function (e) {\n            if (!selector || hasClass(e.target, selector))\n              callback(e);\n          });\n        }\n\n        on('mouseover', tooltipSelector, function (event) {\n          var $point = event.target;\n          var tooltipText = '';\n\n          var isPieChart = (chart instanceof Chartist.Pie) ? $point : $point.parentNode;\n          var seriesName = (isPieChart) ? $point.parentNode.getAttribute('ct:meta') || $point.parentNode.getAttribute('ct:series-name') : '';\n          var meta = $point.getAttribute('ct:meta') || seriesName || '';\n          var hasMeta = !!meta;\n          var value = $point.getAttribute('ct:value');\n\n          if (options.transformTooltipTextFnc && typeof options.transformTooltipTextFnc === 'function') {\n            value = options.transformTooltipTextFnc(value);\n          }\n\n          if (options.tooltipFnc && typeof options.tooltipFnc === 'function') {\n            tooltipText = options.tooltipFnc(meta, value);\n          } else {\n            if (options.metaIsHTML) {\n              var txt = document.createElement(\"textarea\");\n              txt.innerHTML = meta;\n              meta = txt.value;\n            }\n\n            meta = '<span class=\"chartist-tooltip-meta\">' + meta + '</span>';\n\n            if (hasMeta) {\n              tooltipText += meta + '<br>';\n            } else {\n              // For Pie Charts also take the labels into account\n              // Could add support for more charts here as well!\n              if (chart instanceof Chartist.Pie) {\n                var label = next($point, 'ct-label');\n                if (label) {\n                  tooltipText += text(label) + '<br>';\n                }\n              }\n            }\n\n            if (value) {\n              if (options.currency) {\n                value = options.currency + value.replace(/(\\d)(?=(\\d{3})+(?:\\.\\d+)?$)/g, \"$1,\");\n              }\n              value = '<span class=\"chartist-tooltip-value\">' + value + '</span>';\n              tooltipText += value;\n            }\n          }\n\n          if(tooltipText) {\n            $toolTip.innerHTML = tooltipText;\n            setPosition(event);\n            show($toolTip);\n\n            // Remember height and width to avoid wrong position in IE\n            height = $toolTip.offsetHeight;\n            width = $toolTip.offsetWidth;\n          }\n        });\n\n        on('mouseout', tooltipSelector, function () {\n          hide($toolTip);\n        });\n\n        on('mousemove', null, function (event) {\n          setPosition(event);\n        });\n\n        function setPosition(event) {\n          // For some reasons, on FF, we can't rely on event.offsetX and event.offsetY,\n          // that's why we prioritize event.layerX and event.layerY\n          // see https://github.com/gionkunz/chartist-js/issues/381\n          height = height || $toolTip.offsetHeight;\n          width = width || $toolTip.offsetWidth;\n          if (!options.appendToBody) {\n            $toolTip.style.top = (event.layerY || event.offsetY) - height + options.tooltipOffset.y + 'px';\n            $toolTip.style.left = (event.layerX || event.offsetX) - width / 2 + options.tooltipOffset.x + 'px';\n          } else {\n            $toolTip.style.top = event.pageY - height  + options.tooltipOffset.y + 'px';\n            $toolTip.style.left = event.pageX - width / 2 + options.tooltipOffset.x + 'px';\n          }\n        }\n      }\n    };\n\n    function show(element) {\n      if(!hasClass(element, 'tooltip-show')) {\n        element.className = element.className + ' tooltip-show';\n      }\n    }\n\n    function hide(element) {\n      var regex = new RegExp('tooltip-show' + '\\\\s*', 'gi');\n      element.className = element.className.replace(regex, '').trim();\n    }\n\n    function hasClass(element, className) {\n      return (' ' + element.getAttribute('class') + ' ').indexOf(' ' + className + ' ') > -1;\n    }\n\n    function next(element, className) {\n      do {\n        element = element.nextSibling;\n      } while (element && !hasClass(element, className));\n      return element;\n    }\n\n    function text(element) {\n      return element.innerText || element.textContent;\n    }\n\n  } (window, document, Chartist));\n\n  return Chartist.plugins.tooltips;\n\n}));\n"]}