/* *
 *
 *  (c) 2010-2019 Torstein Honsi
 *
 *  License: www.highcharts.com/license
 *
 *  !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
 *
 * */
'use strict';
import Highcharts from './Globals.js';
/**
 * One position in relation to an axis.
 *
 * @interface Highcharts.PointerAxisCoordinateObject
 */ /**
* Related axis.
*
* @name Highcharts.PointerAxisCoordinateObject#axis
* @type {Highcharts.Axis}
*/ /**
* Axis value.
*
* @name Highcharts.PointerAxisCoordinateObject#value
* @type {number}
*/
/**
 * Positions in terms of axis values.
 *
 * @interface Highcharts.PointerAxisCoordinatesObject
 */ /**
* Positions on the x-axis.
* @name Highcharts.PointerAxisCoordinatesObject#xAxis
* @type {Array<Highcharts.PointerAxisCoordinateObject>}
*/ /**
* Positions on the y-axis.
* @name Highcharts.PointerAxisCoordinatesObject#yAxis
* @type {Array<Highcharts.PointerAxisCoordinateObject>}
*/
/**
 * Pointer coordinates.
 *
 * @interface Highcharts.PointerCoordinatesObject
 */ /**
* @name Highcharts.PointerCoordinatesObject#chartX
* @type {number}
*/ /**
* @name Highcharts.PointerCoordinatesObject#chartY
* @type {number}
*/
/**
 * A native browser mouse or touch event, extended with position information
 * relative to the {@link Chart.container}.
 *
 * @interface Highcharts.PointerEventObject
 * @extends global.PointerEvent
 */ /**
* The X coordinate of the pointer interaction relative to the chart.
*
* @name Highcharts.PointerEventObject#chartX
* @type {number}
*/ /**
* The Y coordinate of the pointer interaction relative to the chart.
*
* @name Highcharts.PointerEventObject#chartY
* @type {number}
*/
/**
 * Axis-specific data of a selection.
 *
 * @interface Highcharts.SelectDataObject
 */ /**
* @name Highcharts.SelectDataObject#axis
* @type {Highcharts.Axis}
*/ /**
* @name Highcharts.SelectDataObject#max
* @type {number}
*/ /**
* @name Highcharts.SelectDataObject#min
* @type {number}
*/
/**
 * Object for select events.
 *
 * @interface Highcharts.SelectEventObject
 */ /**
* @name Highcharts.SelectEventObject#originalEvent
* @type {global.Event}
*/ /**
* @name Highcharts.SelectEventObject#xAxis
* @type {Array<Highcharts.SelectDataObject>}
*/ /**
* @name Highcharts.SelectEventObject#yAxis
* @type {Array<Highcharts.SelectDataObject>}
*/
import U from './Utilities.js';
var defined = U.defined, isNumber = U.isNumber, isObject = U.isObject, objectEach = U.objectEach, splat = U.splat;
import './Tooltip.js';
import './Color.js';
var H = Highcharts, addEvent = H.addEvent, attr = H.attr, charts = H.charts, color = H.color, css = H.css, extend = H.extend, find = H.find, fireEvent = H.fireEvent, offset = H.offset, pick = H.pick, Tooltip = H.Tooltip;
/* eslint-disable no-invalid-this, valid-jsdoc */
/**
 * The mouse and touch tracker object. Each {@link Chart} item has one
 * assosiated Pointer item that can be accessed from the  {@link Chart.pointer}
 * property.
 *
 * @class
 * @name Highcharts.Pointer
 *
 * @param {Highcharts.Chart} chart
 *        The Chart instance.
 *
 * @param {Highcharts.Options} options
 *        The root options object. The pointer uses options from the chart and
 *        tooltip structures.
 */
Highcharts.Pointer = function (chart, options) {
    this.init(chart, options);
};
Highcharts.Pointer.prototype = {
    /**
     * Initialize the Pointer.
     *
     * @private
     * @function Highcharts.Pointer#init
     *
     * @param {Highcharts.Chart} chart
     *        The Chart instance.
     *
     * @param {Highcharts.Options} options
     *        The root options object. The pointer uses options from the chart
     *        and tooltip structures.
     *
     * @return {void}
     */
    init: function (chart, options) {
        // Store references
        this.options = options;
        this.chart = chart;
        // Do we need to handle click on a touch device?
        this.runChartClick =
            options.chart.events &&
                !!options.chart.events.click;
        this.pinchDown = [];
        this.lastValidTouch = {};
        if (Tooltip) {
            /**
             * Tooltip object for points of series.
             *
             * @name Highcharts.Chart#tooltip
             * @type {Highcharts.Tooltip}
             */
            chart.tooltip = new Tooltip(chart, options.tooltip);
            this.followTouchMove = pick(options.tooltip.followTouchMove, true);
        }
        this.setDOMEvents();
    },
    /**
     * Resolve the zoomType option, this is reset on all touch start and mouse
     * down events.
     *
     * @private
     * @function Highcharts.Pointer#zoomOption
     *
     * @param {global.Event} e
     *        Event object.
     *
     * @param {void}
     */
    zoomOption: function (e) {
        var chart = this.chart, options = chart.options.chart, zoomType = options.zoomType || '', inverted = chart.inverted, zoomX, zoomY;
        // Look for the pinchType option
        if (/touch/.test(e.type)) {
            zoomType = pick(options.pinchType, zoomType);
        }
        this.zoomX = zoomX = /x/.test(zoomType);
        this.zoomY = zoomY = /y/.test(zoomType);
        this.zoomHor = (zoomX && !inverted) || (zoomY && inverted);
        this.zoomVert = (zoomY && !inverted) || (zoomX && inverted);
        this.hasZoom = zoomX || zoomY;
    },
    /**
     * Takes a browser event object and extends it with custom Highcharts
     * properties `chartX` and `chartY` in order to work on the internal
     * coordinate system.
     *
     * @function Highcharts.Pointer#normalize
     *
     * @param {PointerEvent|TouchEvent} e
     *        Event object in standard browsers.
     *
     * @param {Highcharts.OffsetObject} [chartPosition]
     *        Additional chart offset.
     *
     * @return {Highcharts.PointerEventObject}
     *         A browser event with extended properties `chartX` and `chartY`.
     */
    normalize: function (e, chartPosition) {
        var ePos;
        // iOS (#2757)
        ePos = e.touches ?
            (e.touches.length ?
                e.touches.item(0) :
                e.changedTouches[0]) :
            e;
        // Get mouse position
        if (!chartPosition) {
            this.chartPosition = chartPosition = offset(this.chart.container);
        }
        var chartX = ePos.pageX - chartPosition.left, chartY = ePos.pageY - chartPosition.top;
        // #11329 - when there is scaling on a parent element, we need to take
        // this into account
        var containerScaling = this.chart.containerScaling;
        if (containerScaling) {
            chartX /= containerScaling.scaleX;
            chartY /= containerScaling.scaleY;
        }
        return extend(e, {
            chartX: Math.round(chartX),
            chartY: Math.round(chartY)
        });
    },
    /**
     * Get the click position in terms of axis values.
     *
     * @function Highcharts.Pointer#getCoordinates
     *
     * @param {Highcharts.PointerEventObject} e
     *        Pointer event, extended with `chartX` and `chartY` properties.
     *
     * @return {Highcharts.PointerAxisCoordinatesObject}
     */
    getCoordinates: function (e) {
        var coordinates = {
            xAxis: [],
            yAxis: []
        };
        this.chart.axes.forEach(function (axis) {
            coordinates[axis.isXAxis ? 'xAxis' : 'yAxis'].push({
                axis: axis,
                value: axis.toValue(e[axis.horiz ? 'chartX' : 'chartY'])
            });
        });
        return coordinates;
    },
    /**
     * Finds the closest point to a set of coordinates, using the k-d-tree
     * algorithm.
     *
     * @function Highcharts.Pointer#findNearestKDPoints
     *
     * @param {Array<Highcharts.Series>} series
     *        All the series to search in.
     *
     * @param {boolean|undefined} shared
     *        Whether it is a shared tooltip or not.
     *
     * @param {Highcharts.PointerEventObject} e
     *        The pointer event object, containing chart coordinates of the
     *        pointer.
     *
     * @return {Highcharts.Point|undefined}
     *         The point closest to given coordinates.
     */
    findNearestKDPoint: function (series, shared, e) {
        var closest, sort = function (p1, p2) {
            var isCloserX = p1.distX - p2.distX, isCloser = p1.dist - p2.dist, isAbove = (p2.series.group && p2.series.group.zIndex) -
                (p1.series.group && p1.series.group.zIndex), result;
            // We have two points which are not in the same place on xAxis
            // and shared tooltip:
            if (isCloserX !== 0 && shared) { // #5721
                result = isCloserX;
                // Points are not exactly in the same place on x/yAxis:
            }
            else if (isCloser !== 0) {
                result = isCloser;
                // The same xAxis and yAxis position, sort by z-index:
            }
            else if (isAbove !== 0) {
                result = isAbove;
                // The same zIndex, sort by array index:
            }
            else {
                result =
                    p1.series.index > p2.series.index ?
                        -1 :
                        1;
            }
            return result;
        };
        series.forEach(function (s) {
            var noSharedTooltip = s.noSharedTooltip && shared, compareX = (!noSharedTooltip &&
                s.options.findNearestPointBy.indexOf('y') < 0), point = s.searchPoint(e, compareX);
            if ( // Check that we actually found a point on the series.
            isObject(point, true) &&
                // Use the new point if it is closer.
                (!isObject(closest, true) ||
                    (sort(closest, point) > 0))) {
                closest = point;
            }
        });
        return closest;
    },
    /**
     * @private
     * @function Highcharts.Pointer#getPointFromEvent
     *
     * @param {global.Event} e
     *
     * @return {Highcharts.Point|undefined}
     */
    getPointFromEvent: function (e) {
        var target = e.target, point;
        while (target && !point) {
            point = target.point;
            target = target.parentNode;
        }
        return point;
    },
    /**
     * @private
     * @function Highcharts.Pointer#getChartCoordinatesFromPoint
     * @param {Highcharts.Point} point
     * @param {boolean} [inverted]
     * @return {Highcharts.PointerCoordinatesObject|undefined}
     */
    getChartCoordinatesFromPoint: function (point, inverted) {
        var series = point.series, xAxis = series.xAxis, yAxis = series.yAxis, plotX = pick(point.clientX, point.plotX), shapeArgs = point.shapeArgs;
        if (xAxis && yAxis) {
            return inverted ? {
                chartX: xAxis.len + xAxis.pos - plotX,
                chartY: yAxis.len + yAxis.pos - point.plotY
            } : {
                chartX: plotX + xAxis.pos,
                chartY: point.plotY + yAxis.pos
            };
        }
        if (shapeArgs && shapeArgs.x && shapeArgs.y) {
            // E.g. pies do not have axes
            return {
                chartX: shapeArgs.x,
                chartY: shapeArgs.y
            };
        }
    },
    /**
     * Calculates what is the current hovered point/points and series.
     *
     * @private
     * @function Highcharts.Pointer#getHoverData
     *
     * @param {Highcharts.Point|undefined} existingHoverPoint
     *        The point currrently beeing hovered.
     *
     * @param {Highcharts.Series|undefined} existingHoverSeries
     *        The series currently beeing hovered.
     *
     * @param {Array<Highcharts.Series>} series
     *        All the series in the chart.
     *
     * @param {boolean} isDirectTouch
     *        Is the pointer directly hovering the point.
     *
     * @param {boolean|undefined} shared
     *        Whether it is a shared tooltip or not.
     *
     * @param {Highcharts.PointerEventObject} e
     *        The triggering event, containing chart coordinates of the pointer.
     *
     * @return {object}
     *         Object containing resulting hover data: hoverPoint, hoverSeries,
     *         and hoverPoints.
     */
    getHoverData: function (existingHoverPoint, existingHoverSeries, series, isDirectTouch, shared, e) {
        var hoverPoint, hoverPoints = [], hoverSeries = existingHoverSeries, useExisting = !!(isDirectTouch && existingHoverPoint), notSticky = hoverSeries && !hoverSeries.stickyTracking, filter = function (s) {
            return (s.visible &&
                !(!shared && s.directTouch) && // #3821
                pick(s.options.enableMouseTracking, true));
        }, 
        // Which series to look in for the hover point
        searchSeries = notSticky ?
            // Only search on hovered series if it has stickyTracking false
            [hoverSeries] :
            // Filter what series to look in.
            series.filter(function (s) {
                return filter(s) && s.stickyTracking;
            });
        // Use existing hovered point or find the one closest to coordinates.
        hoverPoint = useExisting ?
            existingHoverPoint :
            this.findNearestKDPoint(searchSeries, shared, e);
        // Assign hover series
        hoverSeries = hoverPoint && hoverPoint.series;
        // If we have a hoverPoint, assign hoverPoints.
        if (hoverPoint) {
            // When tooltip is shared, it displays more than one point
            if (shared && !hoverSeries.noSharedTooltip) {
                searchSeries = series.filter(function (s) {
                    return filter(s) && !s.noSharedTooltip;
                });
                // Get all points with the same x value as the hoverPoint
                searchSeries.forEach(function (s) {
                    var point = find(s.points, function (p) {
                        return p.x === hoverPoint.x && !p.isNull;
                    });
                    if (isObject(point)) {
                        /*
                        * Boost returns a minimal point. Convert it to a usable
                        * point for tooltip and states.
                        */
                        if (s.chart.isBoosting) {
                            point = s.getPoint(point);
                        }
                        hoverPoints.push(point);
                    }
                });
            }
            else {
                hoverPoints.push(hoverPoint);
            }
        }
        return {
            hoverPoint: hoverPoint,
            hoverSeries: hoverSeries,
            hoverPoints: hoverPoints
        };
    },
    /**
     * With line type charts with a single tracker, get the point closest to the
     * mouse. Run Point.onMouseOver and display tooltip for the point or points.
     *
     * @private
     * @function Highcharts.Pointer#runPointActions
     *
     * @param {global.Event} e
     *
     * @param {Highcharts.PointerEventObject} [p]
     *
     * @return {void}
     *
     * @fires Highcharts.Point#event:mouseOut
     * @fires Highcharts.Point#event:mouseOver
     */
    runPointActions: function (e, p) {
        var pointer = this, chart = pointer.chart, series = chart.series, tooltip = (chart.tooltip && chart.tooltip.options.enabled ?
            chart.tooltip :
            undefined), shared = (tooltip ?
            tooltip.shared :
            false), hoverPoint = p || chart.hoverPoint, hoverSeries = hoverPoint && hoverPoint.series || chart.hoverSeries, 
        // onMouseOver or already hovering a series with directTouch
        isDirectTouch = e.type !== 'touchmove' && (!!p || ((hoverSeries && hoverSeries.directTouch) &&
            pointer.isDirectTouch)), hoverData = this.getHoverData(hoverPoint, hoverSeries, series, isDirectTouch, shared, e), useSharedTooltip, followPointer, anchor, points;
        // Update variables from hoverData.
        hoverPoint = hoverData.hoverPoint;
        points = hoverData.hoverPoints;
        hoverSeries = hoverData.hoverSeries;
        followPointer = hoverSeries && hoverSeries.tooltipOptions.followPointer;
        useSharedTooltip = (shared &&
            hoverSeries &&
            !hoverSeries.noSharedTooltip);
        // Refresh tooltip for kdpoint if new hover point or tooltip was hidden
        // #3926, #4200
        if (hoverPoint &&
            // !(hoverSeries && hoverSeries.directTouch) &&
            (hoverPoint !== chart.hoverPoint || (tooltip && tooltip.isHidden))) {
            (chart.hoverPoints || []).forEach(function (p) {
                if (points.indexOf(p) === -1) {
                    p.setState();
                }
            });
            // Set normal state to previous series
            if (chart.hoverSeries !== hoverSeries) {
                hoverSeries.onMouseOver();
            }
            pointer.applyInactiveState(points);
            // Do mouseover on all points (#3919, #3985, #4410, #5622)
            (points || []).forEach(function (p) {
                p.setState('hover');
            });
            // If tracking is on series in stead of on each point,
            // fire mouseOver on hover point. // #4448
            if (chart.hoverPoint) {
                chart.hoverPoint.firePointEvent('mouseOut');
            }
            // Hover point may have been destroyed in the event handlers (#7127)
            if (!hoverPoint.series) {
                return;
            }
            hoverPoint.firePointEvent('mouseOver');
            /**
             * Contains all hovered points.
             *
             * @name Highcharts.Chart#hoverPoints
             * @type {Array<Highcharts.Point>|null}
             */
            chart.hoverPoints = points;
            /**
             * Contains the original hovered point.
             *
             * @name Highcharts.Chart#hoverPoint
             * @type {Highcharts.Point|null}
             */
            chart.hoverPoint = hoverPoint;
            // Draw tooltip if necessary
            if (tooltip) {
                tooltip.refresh(useSharedTooltip ? points : hoverPoint, e);
            }
            // Update positions (regardless of kdpoint or hoverPoint)
        }
        else if (followPointer && tooltip && !tooltip.isHidden) {
            anchor = tooltip.getAnchor([{}], e);
            tooltip.updatePosition({ plotX: anchor[0], plotY: anchor[1] });
        }
        // Start the event listener to pick up the tooltip and crosshairs
        if (!pointer.unDocMouseMove) {
            pointer.unDocMouseMove = addEvent(chart.container.ownerDocument, 'mousemove', function (e) {
                var chart = charts[H.hoverChartIndex];
                if (chart) {
                    chart.pointer.onDocumentMouseMove(e);
                }
            });
        }
        // Issues related to crosshair #4927, #5269 #5066, #5658
        chart.axes.forEach(function drawAxisCrosshair(axis) {
            var snap = pick(axis.crosshair.snap, true), point = !snap ?
                undefined :
                H.find(points, function (p) {
                    return p.series[axis.coll] === axis;
                });
            // Axis has snapping crosshairs, and one of the hover points belongs
            // to axis. Always call drawCrosshair when it is not snap.
            if (point || !snap) {
                axis.drawCrosshair(e, point);
                // Axis has snapping crosshairs, but no hover point belongs to axis
            }
            else {
                axis.hideCrosshair();
            }
        });
    },
    /**
     * Set inactive state to all series that are not currently hovered,
     * or, if `inactiveOtherPoints` is set to true, set inactive state to
     * all points within that series.
     *
     * @function Highcharts.Pointer#applyInactiveState
     *
     * @private
     *
     * @param {Array<Highcharts.Point>} points
     *        Currently hovered points
     *
     */
    applyInactiveState: function (points) {
        var activeSeries = [], series;
        // Get all active series from the hovered points
        (points || []).forEach(function (item) {
            series = item.series;
            // Include itself
            activeSeries.push(series);
            // Include parent series
            if (series.linkedParent) {
                activeSeries.push(series.linkedParent);
            }
            // Include all child series
            if (series.linkedSeries) {
                activeSeries = activeSeries.concat(series.linkedSeries);
            }
            // Include navigator series
            if (series.navigatorSeries) {
                activeSeries.push(series.navigatorSeries);
            }
        });
        // Now loop over all series, filtering out active series
        this.chart.series.forEach(function (inactiveSeries) {
            if (activeSeries.indexOf(inactiveSeries) === -1) {
                // Inactive series
                inactiveSeries.setState('inactive', true);
            }
            else if (inactiveSeries.options.inactiveOtherPoints) {
                // Active series, but other points should be inactivated
                inactiveSeries.setAllPointsToState('inactive');
            }
        });
    },
    /**
     * Reset the tracking by hiding the tooltip, the hover series state and the
     * hover point
     *
     * @function Highcharts.Pointer#reset
     *
     * @param {boolean} [allowMove]
     *        Instead of destroying the tooltip altogether, allow moving it if
     *        possible.
     *
     * @param {number} [delay]
     *
     * @return {void}
     */
    reset: function (allowMove, delay) {
        var pointer = this, chart = pointer.chart, hoverSeries = chart.hoverSeries, hoverPoint = chart.hoverPoint, hoverPoints = chart.hoverPoints, tooltip = chart.tooltip, tooltipPoints = tooltip && tooltip.shared ?
            hoverPoints :
            hoverPoint;
        // Check if the points have moved outside the plot area (#1003, #4736,
        // #5101)
        if (allowMove && tooltipPoints) {
            splat(tooltipPoints).forEach(function (point) {
                if (point.series.isCartesian && point.plotX === undefined) {
                    allowMove = false;
                }
            });
        }
        // Just move the tooltip, #349
        if (allowMove) {
            if (tooltip && tooltipPoints && splat(tooltipPoints).length) {
                tooltip.refresh(tooltipPoints);
                if (tooltip.shared && hoverPoints) { // #8284
                    hoverPoints.forEach(function (point) {
                        point.setState(point.state, true);
                        if (point.series.isCartesian) {
                            if (point.series.xAxis.crosshair) {
                                point.series.xAxis
                                    .drawCrosshair(null, point);
                            }
                            if (point.series.yAxis.crosshair) {
                                point.series.yAxis
                                    .drawCrosshair(null, point);
                            }
                        }
                    });
                }
                else if (hoverPoint) { // #2500
                    hoverPoint.setState(hoverPoint.state, true);
                    chart.axes.forEach(function (axis) {
                        if (axis.crosshair) {
                            axis.drawCrosshair(null, hoverPoint);
                        }
                    });
                }
            }
            // Full reset
        }
        else {
            if (hoverPoint) {
                hoverPoint.onMouseOut();
            }
            if (hoverPoints) {
                hoverPoints.forEach(function (point) {
                    point.setState();
                });
            }
            if (hoverSeries) {
                hoverSeries.onMouseOut();
            }
            if (tooltip) {
                tooltip.hide(delay);
            }
            if (pointer.unDocMouseMove) {
                pointer.unDocMouseMove = pointer.unDocMouseMove();
            }
            // Remove crosshairs
            chart.axes.forEach(function (axis) {
                axis.hideCrosshair();
            });
            pointer.hoverX = chart.hoverPoints = chart.hoverPoint = null;
        }
    },
    /**
     * Scale series groups to a certain scale and translation.
     *
     * @private
     * @function Highcharts.Pointer#scaleGroups
     *
     * @param {Highcharts.SeriesPlotBoxObject} [attribs]
     *
     * @param {boolean} [clip]
     *
     * @return {void}
     */
    scaleGroups: function (attribs, clip) {
        var chart = this.chart, seriesAttribs;
        // Scale each series
        chart.series.forEach(function (series) {
            seriesAttribs = attribs || series.getPlotBox(); // #1701
            if (series.xAxis && series.xAxis.zoomEnabled && series.group) {
                series.group.attr(seriesAttribs);
                if (series.markerGroup) {
                    series.markerGroup.attr(seriesAttribs);
                    series.markerGroup.clip(clip ? chart.clipRect : null);
                }
                if (series.dataLabelsGroup) {
                    series.dataLabelsGroup.attr(seriesAttribs);
                }
            }
        });
        // Clip
        chart.clipRect.attr(clip || chart.clipBox);
    },
    /**
     * Start a drag operation.
     *
     * @private
     * @function Highcharts.Pointer#dragStart
     *
     * @param {Highcharts.PointerEventObject} e
     *
     * @return {void}
     */
    dragStart: function (e) {
        var chart = this.chart;
        // Record the start position
        chart.mouseIsDown = e.type;
        chart.cancelClick = false;
        chart.mouseDownX = this.mouseDownX = e.chartX;
        chart.mouseDownY = this.mouseDownY = e.chartY;
    },
    /**
     * Perform a drag operation in response to a mousemove event while the mouse
     * is down.
     *
     * @private
     * @function Highcharts.Pointer#drag
     *
     * @param {Highcharts.PointerEventObject} e
     *
     * @return {void}
     */
    drag: function (e) {
        var chart = this.chart, chartOptions = chart.options.chart, chartX = e.chartX, chartY = e.chartY, zoomHor = this.zoomHor, zoomVert = this.zoomVert, plotLeft = chart.plotLeft, plotTop = chart.plotTop, plotWidth = chart.plotWidth, plotHeight = chart.plotHeight, clickedInside, size, selectionMarker = this.selectionMarker, mouseDownX = this.mouseDownX, mouseDownY = this.mouseDownY, panKey = (chartOptions.panKey && e[chartOptions.panKey + 'Key']);
        // If the device supports both touch and mouse (like IE11), and we are
        // touch-dragging inside the plot area, don't handle the mouse event.
        // #4339.
        if (selectionMarker && selectionMarker.touch) {
            return;
        }
        // If the mouse is outside the plot area, adjust to cooordinates
        // inside to prevent the selection marker from going outside
        if (chartX < plotLeft) {
            chartX = plotLeft;
        }
        else if (chartX > plotLeft + plotWidth) {
            chartX = plotLeft + plotWidth;
        }
        if (chartY < plotTop) {
            chartY = plotTop;
        }
        else if (chartY > plotTop + plotHeight) {
            chartY = plotTop + plotHeight;
        }
        // determine if the mouse has moved more than 10px
        this.hasDragged = Math.sqrt(Math.pow(mouseDownX - chartX, 2) +
            Math.pow(mouseDownY - chartY, 2));
        if (this.hasDragged > 10) {
            clickedInside = chart.isInsidePlot(mouseDownX - plotLeft, mouseDownY - plotTop);
            // make a selection
            if (chart.hasCartesianSeries &&
                (this.zoomX || this.zoomY) &&
                clickedInside &&
                !panKey) {
                if (!selectionMarker) {
                    this.selectionMarker = selectionMarker =
                        chart.renderer.rect(plotLeft, plotTop, zoomHor ? 1 : plotWidth, zoomVert ? 1 : plotHeight, 0)
                            .attr({
                            'class': 'highcharts-selection-marker',
                            zIndex: 7
                        })
                            .add();
                    if (!chart.styledMode) {
                        selectionMarker.attr({
                            fill: (chartOptions.selectionMarkerFill ||
                                color('#335cad')
                                    .setOpacity(0.25).get())
                        });
                    }
                }
            }
            // adjust the width of the selection marker
            if (selectionMarker && zoomHor) {
                size = chartX - mouseDownX;
                selectionMarker.attr({
                    width: Math.abs(size),
                    x: (size > 0 ? 0 : size) + mouseDownX
                });
            }
            // adjust the height of the selection marker
            if (selectionMarker && zoomVert) {
                size = chartY - mouseDownY;
                selectionMarker.attr({
                    height: Math.abs(size),
                    y: (size > 0 ? 0 : size) + mouseDownY
                });
            }
            // panning
            if (clickedInside && !selectionMarker && chartOptions.panning) {
                chart.pan(e, chartOptions.panning);
            }
        }
    },
    /**
     * On mouse up or touch end across the entire document, drop the selection.
     *
     * @private
     * @function Highcharts.Pointer#drop
     *
     * @param {global.Event} e
     *
     * @return {void}
     */
    drop: function (e) {
        var pointer = this, chart = this.chart, hasPinched = this.hasPinched;
        if (this.selectionMarker) {
            var selectionData = {
                originalEvent: e,
                xAxis: [],
                yAxis: []
            }, selectionBox = this.selectionMarker, selectionLeft = selectionBox.attr ?
                selectionBox.attr('x') :
                selectionBox.x, selectionTop = selectionBox.attr ?
                selectionBox.attr('y') :
                selectionBox.y, selectionWidth = selectionBox.attr ?
                selectionBox.attr('width') :
                selectionBox.width, selectionHeight = selectionBox.attr ?
                selectionBox.attr('height') :
                selectionBox.height, runZoom;
            // a selection has been made
            if (this.hasDragged || hasPinched) {
                // record each axis' min and max
                chart.axes.forEach(function (axis) {
                    if (axis.zoomEnabled &&
                        defined(axis.min) &&
                        (hasPinched ||
                            pointer[{
                                xAxis: 'zoomX',
                                yAxis: 'zoomY'
                            }[axis.coll]])) { // #859, #3569
                        var horiz = axis.horiz, minPixelPadding = e.type === 'touchend' ?
                            axis.minPixelPadding :
                            0, // #1207, #3075
                        selectionMin = axis.toValue((horiz ? selectionLeft : selectionTop) +
                            minPixelPadding), selectionMax = axis.toValue((horiz ?
                            selectionLeft + selectionWidth :
                            selectionTop + selectionHeight) - minPixelPadding);
                        selectionData[axis.coll].push({
                            axis: axis,
                            // Min/max for reversed axes
                            min: Math.min(selectionMin, selectionMax),
                            max: Math.max(selectionMin, selectionMax)
                        });
                        runZoom = true;
                    }
                });
                if (runZoom) {
                    fireEvent(chart, 'selection', selectionData, function (args) {
                        chart.zoom(extend(args, hasPinched ?
                            { animation: false } :
                            null));
                    });
                }
            }
            if (isNumber(chart.index)) {
                this.selectionMarker = this.selectionMarker.destroy();
            }
            // Reset scaling preview
            if (hasPinched) {
                this.scaleGroups();
            }
        }
        // Reset all. Check isNumber because it may be destroyed on mouse up
        // (#877)
        if (chart && isNumber(chart.index)) {
            css(chart.container, { cursor: chart._cursor });
            chart.cancelClick = this.hasDragged > 10; // #370
            chart.mouseIsDown = this.hasDragged = this.hasPinched = false;
            this.pinchDown = [];
        }
    },
    /**
     * @private
     * @function Highcharts.Pointer#onContainerMouseDown
     *
     * @param {Highcharts.PointerEventObject} e
     *
     * @return {void}
     */
    onContainerMouseDown: function (e) {
        // Normalize before the 'if' for the legacy IE (#7850)
        e = this.normalize(e);
        if (e.button !== 2) {
            this.zoomOption(e);
            // issue #295, dragging not always working in Firefox
            if (e.preventDefault) {
                e.preventDefault();
            }
            this.dragStart(e);
        }
    },
    /**
     * @private
     * @function Highcharts.Pointer#onDocumentMouseUp
     *
     * @param {Highcharts.PointerEventObject} e
     *
     * @return {void}
     */
    onDocumentMouseUp: function (e) {
        if (charts[H.hoverChartIndex]) {
            charts[H.hoverChartIndex].pointer.drop(e);
        }
    },
    /**
     * Special handler for mouse move that will hide the tooltip when the mouse
     * leaves the plotarea. Issue #149 workaround. The mouseleave event does not
     * always fire.
     *
     * @private
     * @function Highcharts.Pointer#onDocumentMouseMove
     *
     * @param {Highcharts.PointerEventObject} e
     *
     * @return {void}
     */
    onDocumentMouseMove: function (e) {
        var chart = this.chart, chartPosition = this.chartPosition;
        e = this.normalize(e, chartPosition);
        // If we're outside, hide the tooltip
        if (chartPosition &&
            !this.inClass(e.target, 'highcharts-tracker') &&
            !chart.isInsidePlot(e.chartX - chart.plotLeft, e.chartY - chart.plotTop)) {
            this.reset();
        }
    },
    /**
     * When mouse leaves the container, hide the tooltip.
     *
     * @private
     * @function Highcharts.Pointer#onContainerMouseLeave
     *
     * @param {Highcharts.PointerEventObject} e
     *
     * @return {void}
     */
    onContainerMouseLeave: function (e) {
        var chart = charts[H.hoverChartIndex];
        // #4886, MS Touch end fires mouseleave but with no related target
        if (chart && (e.relatedTarget || e.toElement)) {
            chart.pointer.reset();
            // Also reset the chart position, used in #149 fix
            chart.pointer.chartPosition = null;
        }
    },
    /**
     * The mousemove, touchmove and touchstart event handler
     *
     * @private
     * @function Highcharts.Pointer#onContainerMouseMove
     *
     * @param {Highcharts.PointerEventObject} e
     *
     * @return {void}
     */
    onContainerMouseMove: function (e) {
        var chart = this.chart;
        if (!defined(H.hoverChartIndex) ||
            !charts[H.hoverChartIndex] ||
            !charts[H.hoverChartIndex].mouseIsDown) {
            H.hoverChartIndex = chart.index;
        }
        e = this.normalize(e);
        // In IE8 we apparently need this returnValue set to false in order to
        // avoid text being selected. But in Chrome, e.returnValue is prevented,
        // plus we don't need to run e.preventDefault to prevent selected text
        // in modern browsers. So we set it conditionally. Remove it when IE8 is
        // no longer needed. #2251, #3224.
        if (!e.preventDefault) {
            e.returnValue = false;
        }
        if (chart.mouseIsDown === 'mousedown') {
            this.drag(e);
        }
        // Show the tooltip and run mouse over events (#977)
        if ((this.inClass(e.target, 'highcharts-tracker') ||
            chart.isInsidePlot(e.chartX - chart.plotLeft, e.chartY - chart.plotTop)) &&
            !chart.openMenu) {
            this.runPointActions(e);
        }
    },
    /**
     * Utility to detect whether an element has, or has a parent with, a
     * specificclass name. Used on detection of tracker objects and on deciding
     * whether hovering the tooltip should cause the active series to mouse out.
     *
     * @function Highcharts.Pointer#inClass
     *
     * @param {Highcharts.SVGDOMElement|Highcharts.HTMLDOMElement} element
     *        The element to investigate.
     *
     * @param {string} className
     *        The class name to look for.
     *
     * @return {boolean|undefined}
     *         True if either the element or one of its parents has the given
     *         class name.
     */
    inClass: function (element, className) {
        var elemClassName;
        while (element) {
            elemClassName = attr(element, 'class');
            if (elemClassName) {
                if (elemClassName.indexOf(className) !== -1) {
                    return true;
                }
                if (elemClassName.indexOf('highcharts-container') !== -1) {
                    return false;
                }
            }
            element = element.parentNode;
        }
    },
    /**
     * @private
     * @function Highcharts.Pointer#onTrackerMouseOut
     *
     * @param {Highcharts.PointerEventObject} e
     *
     * @return {void}
     */
    onTrackerMouseOut: function (e) {
        var series = this.chart.hoverSeries, relatedTarget = e.relatedTarget || e.toElement;
        this.isDirectTouch = false;
        if (series &&
            relatedTarget &&
            !series.stickyTracking &&
            !this.inClass(relatedTarget, 'highcharts-tooltip') &&
            (!this.inClass(relatedTarget, 'highcharts-series-' + series.index) || // #2499, #4465, #5553
                !this.inClass(relatedTarget, 'highcharts-tracker'))) {
            series.onMouseOut();
        }
    },
    /**
     * @private
     * @function Highcharts.Pointer#onContainerClick
     *
     * @param {Highcharts.PointerEventObject} e
     *
     * @return {void}
     */
    onContainerClick: function (e) {
        var chart = this.chart, hoverPoint = chart.hoverPoint, plotLeft = chart.plotLeft, plotTop = chart.plotTop;
        e = this.normalize(e);
        if (!chart.cancelClick) {
            // On tracker click, fire the series and point events. #783, #1583
            if (hoverPoint &&
                this.inClass(e.target, 'highcharts-tracker')) {
                // the series click event
                fireEvent(hoverPoint.series, 'click', extend(e, {
                    point: hoverPoint
                }));
                // the point click event
                if (chart.hoverPoint) { // it may be destroyed (#1844)
                    hoverPoint.firePointEvent('click', e);
                }
                // When clicking outside a tracker, fire a chart event
            }
            else {
                extend(e, this.getCoordinates(e));
                // fire a click event in the chart
                if (chart.isInsidePlot(e.chartX - plotLeft, e.chartY - plotTop)) {
                    fireEvent(chart, 'click', e);
                }
            }
        }
    },
    /**
     * Set the JS DOM events on the container and document. This method should
     * contain a one-to-one assignment between methods and their handlers. Any
     * advanced logic should be moved to the handler reflecting the event's
     * name.
     *
     * @private
     * @function Highcharts.Pointer#setDOMEvents
     *
     * @return {void}
     */
    setDOMEvents: function () {
        var pointer = this, container = pointer.chart.container, ownerDoc = container.ownerDocument;
        container.onmousedown = function (e) {
            pointer.onContainerMouseDown(e);
        };
        container.onmousemove = function (e) {
            pointer.onContainerMouseMove(e);
        };
        container.onclick = function (e) {
            pointer.onContainerClick(e);
        };
        this.unbindContainerMouseLeave = addEvent(container, 'mouseleave', pointer.onContainerMouseLeave);
        if (!H.unbindDocumentMouseUp) {
            H.unbindDocumentMouseUp = addEvent(ownerDoc, 'mouseup', pointer.onDocumentMouseUp);
        }
        if (H.hasTouch) {
            addEvent(container, 'touchstart', function (e) {
                pointer.onContainerTouchStart(e);
            });
            addEvent(container, 'touchmove', function (e) {
                pointer.onContainerTouchMove(e);
            });
            if (!H.unbindDocumentTouchEnd) {
                H.unbindDocumentTouchEnd = addEvent(ownerDoc, 'touchend', pointer.onDocumentTouchEnd);
            }
        }
    },
    /**
     * Destroys the Pointer object and disconnects DOM events.
     *
     * @function Highcharts.Pointer#destroy
     *
     * @return {void}
     */
    destroy: function () {
        var pointer = this;
        if (pointer.unDocMouseMove) {
            pointer.unDocMouseMove();
        }
        this.unbindContainerMouseLeave();
        if (!H.chartCount) {
            if (H.unbindDocumentMouseUp) {
                H.unbindDocumentMouseUp = H.unbindDocumentMouseUp();
            }
            if (H.unbindDocumentTouchEnd) {
                H.unbindDocumentTouchEnd = H.unbindDocumentTouchEnd();
            }
        }
        // memory and CPU leak
        clearInterval(pointer.tooltipTimeout);
        objectEach(pointer, function (val, prop) {
            pointer[prop] = null;
        });
    }
};
