chore: version inicial del codigo fuente del LMS Estafeta
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/* *
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*
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* (c) 2009-2020 Øystein Moseng
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*
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* Handle keyboard navigation for series.
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*
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* License: www.highcharts.com/license
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*
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* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
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*
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* */
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'use strict';
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import Chart from '../../../Core/Chart/Chart.js';
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import H from '../../../Core/Globals.js';
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import Point from '../../../Core/Series/Point.js';
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import U from '../../../Core/Utilities.js';
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var defined = U.defined, extend = U.extend;
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import KeyboardNavigationHandler from '../../KeyboardNavigationHandler.js';
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import EventProvider from '../../Utils/EventProvider.js';
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import ChartUtilities from '../../Utils/ChartUtilities.js';
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var getPointFromXY = ChartUtilities.getPointFromXY, getSeriesFromName = ChartUtilities.getSeriesFromName, scrollToPoint = ChartUtilities.scrollToPoint;
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import '../../../Series/ColumnSeries.js';
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import '../../../Series/PieSeries.js';
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/* eslint-disable no-invalid-this, valid-jsdoc */
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/*
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* Set for which series types it makes sense to move to the closest point with
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* up/down arrows, and which series types should just move to next series.
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*/
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H.Series.prototype.keyboardMoveVertical = true;
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['column', 'pie'].forEach(function (type) {
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if (H.seriesTypes[type]) {
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H.seriesTypes[type].prototype.keyboardMoveVertical = false;
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}
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});
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/**
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* Get the index of a point in a series. This is needed when using e.g. data
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* grouping.
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*
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* @private
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* @function getPointIndex
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*
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* @param {Highcharts.AccessibilityPoint} point
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* The point to find index of.
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*
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* @return {number|undefined}
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* The index in the series.points array of the point.
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*/
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function getPointIndex(point) {
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var index = point.index, points = point.series.points, i = points.length;
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if (points[index] !== point) {
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while (i--) {
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if (points[i] === point) {
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return i;
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}
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}
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}
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else {
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return index;
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}
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}
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/**
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* Determine if series navigation should be skipped
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*
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* @private
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* @function isSkipSeries
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*
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* @param {Highcharts.Series} series
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*
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* @return {boolean|number|undefined}
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*/
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function isSkipSeries(series) {
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var a11yOptions = series.chart.options.accessibility, seriesNavOptions = a11yOptions.keyboardNavigation.seriesNavigation, seriesA11yOptions = series.options.accessibility || {}, seriesKbdNavOptions = seriesA11yOptions.keyboardNavigation;
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return seriesKbdNavOptions && seriesKbdNavOptions.enabled === false ||
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seriesA11yOptions.enabled === false ||
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series.options.enableMouseTracking === false || // #8440
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!series.visible ||
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// Skip all points in a series where pointNavigationEnabledThreshold is
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// reached
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(seriesNavOptions.pointNavigationEnabledThreshold &&
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seriesNavOptions.pointNavigationEnabledThreshold <=
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series.points.length);
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}
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/**
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* Determine if navigation for a point should be skipped
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*
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* @private
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* @function isSkipPoint
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*
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* @param {Highcharts.Point} point
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*
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* @return {boolean|number|undefined}
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*/
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function isSkipPoint(point) {
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var a11yOptions = point.series.chart.options.accessibility;
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return point.isNull &&
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a11yOptions.keyboardNavigation.seriesNavigation.skipNullPoints ||
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point.visible === false ||
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isSkipSeries(point.series);
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}
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/**
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* Get the point in a series that is closest (in pixel distance) to a reference
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* point. Optionally supply weight factors for x and y directions.
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*
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* @private
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* @function getClosestPoint
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*
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* @param {Highcharts.Point} point
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* @param {Highcharts.Series} series
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* @param {number} [xWeight]
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* @param {number} [yWeight]
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*
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* @return {Highcharts.Point|undefined}
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*/
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function getClosestPoint(point, series, xWeight, yWeight) {
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var minDistance = Infinity, dPoint, minIx, distance, i = series.points.length, hasUndefinedPosition = function (point) {
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return !(defined(point.plotX) && defined(point.plotY));
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};
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if (hasUndefinedPosition(point)) {
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return;
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}
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while (i--) {
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dPoint = series.points[i];
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if (hasUndefinedPosition(dPoint)) {
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continue;
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}
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distance = (point.plotX - dPoint.plotX) *
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(point.plotX - dPoint.plotX) *
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(xWeight || 1) +
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(point.plotY - dPoint.plotY) *
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(point.plotY - dPoint.plotY) *
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(yWeight || 1);
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if (distance < minDistance) {
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minDistance = distance;
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minIx = i;
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}
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}
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return defined(minIx) ? series.points[minIx] : void 0;
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}
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/**
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* Highlights a point (show tooltip and display hover state).
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*
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* @private
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* @function Highcharts.Point#highlight
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*
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* @return {Highcharts.Point}
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* This highlighted point.
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*/
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Point.prototype.highlight = function () {
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var chart = this.series.chart;
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if (!this.isNull) {
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this.onMouseOver(); // Show the hover marker and tooltip
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}
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else {
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if (chart.tooltip) {
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chart.tooltip.hide(0);
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}
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// Don't call blur on the element, as it messes up the chart div's focus
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}
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scrollToPoint(this);
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// We focus only after calling onMouseOver because the state change can
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// change z-index and mess up the element.
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if (this.graphic) {
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chart.setFocusToElement(this.graphic);
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}
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chart.highlightedPoint = this;
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return this;
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};
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/**
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* Function to highlight next/previous point in chart.
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*
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* @private
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* @function Highcharts.Chart#highlightAdjacentPoint
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*
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* @param {boolean} next
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* Flag for the direction.
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*
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* @return {Highcharts.Point|boolean}
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* Returns highlighted point on success, false on failure (no adjacent
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* point to highlight in chosen direction).
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*/
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Chart.prototype.highlightAdjacentPoint = function (next) {
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var chart = this, series = chart.series, curPoint = chart.highlightedPoint, curPointIndex = curPoint && getPointIndex(curPoint) || 0, curPoints = (curPoint && curPoint.series.points), lastSeries = chart.series && chart.series[chart.series.length - 1], lastPoint = lastSeries && lastSeries.points &&
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lastSeries.points[lastSeries.points.length - 1], newSeries, newPoint;
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// If no points, return false
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if (!series[0] || !series[0].points) {
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return false;
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}
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if (!curPoint) {
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// No point is highlighted yet. Try first/last point depending on move
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// direction
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newPoint = next ? series[0].points[0] : lastPoint;
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}
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else {
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// We have a highlighted point.
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// Grab next/prev point & series
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newSeries = series[curPoint.series.index + (next ? 1 : -1)];
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newPoint = curPoints[curPointIndex + (next ? 1 : -1)];
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if (!newPoint && newSeries) {
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// Done with this series, try next one
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newPoint = newSeries.points[next ? 0 : newSeries.points.length - 1];
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}
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// If there is no adjacent point, we return false
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if (!newPoint) {
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return false;
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}
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}
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// Recursively skip points
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if (isSkipPoint(newPoint)) {
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// If we skip this whole series, move to the end of the series before we
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// recurse, just to optimize
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newSeries = newPoint.series;
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if (isSkipSeries(newSeries)) {
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chart.highlightedPoint = next ?
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newSeries.points[newSeries.points.length - 1] :
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newSeries.points[0];
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}
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else {
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// Otherwise, just move one point
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chart.highlightedPoint = newPoint;
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}
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// Retry
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return chart.highlightAdjacentPoint(next);
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}
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// There is an adjacent point, highlight it
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return newPoint.highlight();
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};
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/**
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* Highlight first valid point in a series. Returns the point if successfully
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* highlighted, otherwise false. If there is a highlighted point in the series,
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* use that as starting point.
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*
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* @private
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* @function Highcharts.Series#highlightFirstValidPoint
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*
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* @return {boolean|Highcharts.Point}
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*/
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H.Series.prototype.highlightFirstValidPoint = function () {
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var curPoint = this.chart.highlightedPoint, start = (curPoint && curPoint.series) === this ?
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getPointIndex(curPoint) :
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0, points = this.points, len = points.length;
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if (points && len) {
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for (var i = start; i < len; ++i) {
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if (!isSkipPoint(points[i])) {
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return points[i].highlight();
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}
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}
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for (var j = start; j >= 0; --j) {
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if (!isSkipPoint(points[j])) {
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return points[j].highlight();
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}
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}
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}
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return false;
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};
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/**
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* Highlight next/previous series in chart. Returns false if no adjacent series
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* in the direction, otherwise returns new highlighted point.
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*
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* @private
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* @function Highcharts.Chart#highlightAdjacentSeries
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*
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* @param {boolean} down
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*
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* @return {Highcharts.Point|boolean}
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*/
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Chart.prototype.highlightAdjacentSeries = function (down) {
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var chart = this, newSeries, newPoint, adjacentNewPoint, curPoint = chart.highlightedPoint, lastSeries = chart.series && chart.series[chart.series.length - 1], lastPoint = lastSeries && lastSeries.points &&
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lastSeries.points[lastSeries.points.length - 1];
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// If no point is highlighted, highlight the first/last point
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if (!chart.highlightedPoint) {
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newSeries = down ? (chart.series && chart.series[0]) : lastSeries;
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newPoint = down ?
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(newSeries && newSeries.points && newSeries.points[0]) : lastPoint;
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return newPoint ? newPoint.highlight() : false;
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}
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newSeries = chart.series[curPoint.series.index + (down ? -1 : 1)];
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if (!newSeries) {
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return false;
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}
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// We have a new series in this direction, find the right point
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// Weigh xDistance as counting much higher than Y distance
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newPoint = getClosestPoint(curPoint, newSeries, 4);
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if (!newPoint) {
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return false;
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}
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// New series and point exists, but we might want to skip it
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if (isSkipSeries(newSeries)) {
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// Skip the series
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newPoint.highlight();
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adjacentNewPoint = chart.highlightAdjacentSeries(down); // Try recurse
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if (!adjacentNewPoint) {
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// Recurse failed
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curPoint.highlight();
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return false;
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}
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// Recurse succeeded
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return adjacentNewPoint;
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}
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// Highlight the new point or any first valid point back or forwards from it
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newPoint.highlight();
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return newPoint.series.highlightFirstValidPoint();
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};
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/**
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* Highlight the closest point vertically.
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*
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* @private
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* @function Highcharts.Chart#highlightAdjacentPointVertical
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*
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* @param {boolean} down
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*
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* @return {Highcharts.Point|boolean}
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*/
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Chart.prototype.highlightAdjacentPointVertical = function (down) {
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var curPoint = this.highlightedPoint, minDistance = Infinity, bestPoint;
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if (!defined(curPoint.plotX) || !defined(curPoint.plotY)) {
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return false;
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}
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this.series.forEach(function (series) {
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if (isSkipSeries(series)) {
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return;
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}
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series.points.forEach(function (point) {
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if (!defined(point.plotY) || !defined(point.plotX) ||
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point === curPoint) {
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return;
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}
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var yDistance = point.plotY - curPoint.plotY, width = Math.abs(point.plotX - curPoint.plotX), distance = Math.abs(yDistance) * Math.abs(yDistance) +
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width * width * 4; // Weigh horizontal distance highly
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// Reverse distance number if axis is reversed
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if (series.yAxis && series.yAxis.reversed) {
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yDistance *= -1;
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}
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if (yDistance <= 0 && down || yDistance >= 0 && !down || // Chk dir
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distance < 5 || // Points in same spot => infinite loop
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isSkipPoint(point)) {
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return;
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}
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if (distance < minDistance) {
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minDistance = distance;
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bestPoint = point;
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}
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});
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});
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return bestPoint ? bestPoint.highlight() : false;
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};
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/**
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* @private
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* @param {Highcharts.Chart} chart
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* @return {Highcharts.Point|boolean}
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*/
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function highlightFirstValidPointInChart(chart) {
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var res = false;
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delete chart.highlightedPoint;
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res = chart.series.reduce(function (acc, cur) {
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return acc || cur.highlightFirstValidPoint();
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}, false);
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return res;
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}
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/**
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* @private
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* @param {Highcharts.Chart} chart
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* @return {Highcharts.Point|boolean}
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*/
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function highlightLastValidPointInChart(chart) {
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var numSeries = chart.series.length, i = numSeries, res = false;
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while (i--) {
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chart.highlightedPoint = chart.series[i].points[chart.series[i].points.length - 1];
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// Highlight first valid point in the series will also
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// look backwards. It always starts from currently
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// highlighted point.
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res = chart.series[i].highlightFirstValidPoint();
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if (res) {
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break;
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}
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}
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return res;
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}
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/**
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* @private
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* @param {Highcharts.Chart} chart
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*/
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function updateChartFocusAfterDrilling(chart) {
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highlightFirstValidPointInChart(chart);
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if (chart.focusElement) {
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chart.focusElement.removeFocusBorder();
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}
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}
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/**
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* @private
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* @class
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* @name Highcharts.SeriesKeyboardNavigation
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*/
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function SeriesKeyboardNavigation(chart, keyCodes) {
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this.keyCodes = keyCodes;
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this.chart = chart;
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}
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extend(SeriesKeyboardNavigation.prototype, /** @lends Highcharts.SeriesKeyboardNavigation */ {
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/**
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* Init the keyboard navigation
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*/
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init: function () {
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var keyboardNavigation = this, chart = this.chart, e = this.eventProvider = new EventProvider();
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e.addEvent(H.Series, 'destroy', function () {
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return keyboardNavigation.onSeriesDestroy(this);
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});
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e.addEvent(chart, 'afterDrilldown', function () {
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updateChartFocusAfterDrilling(this);
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});
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e.addEvent(chart, 'drilldown', function (e) {
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||||
var point = e.point, series = point.series;
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||||
keyboardNavigation.lastDrilledDownPoint = {
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||||
x: point.x,
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y: point.y,
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||||
seriesName: series ? series.name : ''
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||||
};
|
||||
});
|
||||
e.addEvent(chart, 'drillupall', function () {
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||||
setTimeout(function () {
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keyboardNavigation.onDrillupAll();
|
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}, 10);
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||||
});
|
||||
},
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||||
onDrillupAll: function () {
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||||
// After drillup we want to find the point that was drilled down to and
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||||
// highlight it.
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||||
var last = this.lastDrilledDownPoint, chart = this.chart, series = last && getSeriesFromName(chart, last.seriesName), point;
|
||||
if (last && series && defined(last.x) && defined(last.y)) {
|
||||
point = getPointFromXY(series, last.x, last.y);
|
||||
}
|
||||
// Container focus can be lost on drillup due to deleted elements.
|
||||
if (chart.container) {
|
||||
chart.container.focus();
|
||||
}
|
||||
if (point && point.highlight) {
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||||
point.highlight();
|
||||
}
|
||||
if (chart.focusElement) {
|
||||
chart.focusElement.removeFocusBorder();
|
||||
}
|
||||
},
|
||||
/**
|
||||
* @return {Highcharts.KeyboardNavigationHandler}
|
||||
*/
|
||||
getKeyboardNavigationHandler: function () {
|
||||
var keyboardNavigation = this, keys = this.keyCodes, chart = this.chart, inverted = chart.inverted;
|
||||
return new KeyboardNavigationHandler(chart, {
|
||||
keyCodeMap: [
|
||||
[inverted ? [keys.up, keys.down] : [keys.left, keys.right], function (keyCode) {
|
||||
return keyboardNavigation.onKbdSideways(this, keyCode);
|
||||
}],
|
||||
[inverted ? [keys.left, keys.right] : [keys.up, keys.down], function (keyCode) {
|
||||
return keyboardNavigation.onKbdVertical(this, keyCode);
|
||||
}],
|
||||
[[keys.enter, keys.space], function () {
|
||||
if (chart.highlightedPoint) {
|
||||
chart.highlightedPoint.firePointEvent('click');
|
||||
}
|
||||
return this.response.success;
|
||||
}]
|
||||
],
|
||||
init: function (dir) {
|
||||
return keyboardNavigation.onHandlerInit(this, dir);
|
||||
},
|
||||
terminate: function () {
|
||||
return keyboardNavigation.onHandlerTerminate();
|
||||
}
|
||||
});
|
||||
},
|
||||
/**
|
||||
* @private
|
||||
* @param {Highcharts.KeyboardNavigationHandler} handler
|
||||
* @param {number} keyCode
|
||||
* @return {number}
|
||||
* response
|
||||
*/
|
||||
onKbdSideways: function (handler, keyCode) {
|
||||
var keys = this.keyCodes, isNext = keyCode === keys.right || keyCode === keys.down;
|
||||
return this.attemptHighlightAdjacentPoint(handler, isNext);
|
||||
},
|
||||
/**
|
||||
* @private
|
||||
* @param {Highcharts.KeyboardNavigationHandler} handler
|
||||
* @param {number} keyCode
|
||||
* @return {number}
|
||||
* response
|
||||
*/
|
||||
onKbdVertical: function (handler, keyCode) {
|
||||
var chart = this.chart, keys = this.keyCodes, isNext = keyCode === keys.down || keyCode === keys.right, navOptions = chart.options.accessibility.keyboardNavigation
|
||||
.seriesNavigation;
|
||||
// Handle serialized mode, act like left/right
|
||||
if (navOptions.mode && navOptions.mode === 'serialize') {
|
||||
return this.attemptHighlightAdjacentPoint(handler, isNext);
|
||||
}
|
||||
// Normal mode, move between series
|
||||
var highlightMethod = (chart.highlightedPoint &&
|
||||
chart.highlightedPoint.series.keyboardMoveVertical) ?
|
||||
'highlightAdjacentPointVertical' :
|
||||
'highlightAdjacentSeries';
|
||||
chart[highlightMethod](isNext);
|
||||
return handler.response.success;
|
||||
},
|
||||
/**
|
||||
* @private
|
||||
* @param {Highcharts.KeyboardNavigationHandler} handler
|
||||
* @param {number} initDirection
|
||||
* @return {number}
|
||||
* response
|
||||
*/
|
||||
onHandlerInit: function (handler, initDirection) {
|
||||
var chart = this.chart;
|
||||
if (initDirection > 0) {
|
||||
highlightFirstValidPointInChart(chart);
|
||||
}
|
||||
else {
|
||||
highlightLastValidPointInChart(chart);
|
||||
}
|
||||
return handler.response.success;
|
||||
},
|
||||
/**
|
||||
* @private
|
||||
*/
|
||||
onHandlerTerminate: function () {
|
||||
var _a, _b;
|
||||
var chart = this.chart;
|
||||
var curPoint = chart.highlightedPoint;
|
||||
(_a = chart.tooltip) === null || _a === void 0 ? void 0 : _a.hide(0);
|
||||
(_b = curPoint === null || curPoint === void 0 ? void 0 : curPoint.onMouseOut) === null || _b === void 0 ? void 0 : _b.call(curPoint);
|
||||
delete chart.highlightedPoint;
|
||||
},
|
||||
/**
|
||||
* Function that attempts to highlight next/prev point. Handles wrap around.
|
||||
* @private
|
||||
* @param {Highcharts.KeyboardNavigationHandler} handler
|
||||
* @param {boolean} directionIsNext
|
||||
* @return {number}
|
||||
* response
|
||||
*/
|
||||
attemptHighlightAdjacentPoint: function (handler, directionIsNext) {
|
||||
var chart = this.chart, wrapAround = chart.options.accessibility.keyboardNavigation
|
||||
.wrapAround, highlightSuccessful = chart.highlightAdjacentPoint(directionIsNext);
|
||||
if (!highlightSuccessful) {
|
||||
if (wrapAround) {
|
||||
return handler.init(directionIsNext ? 1 : -1);
|
||||
}
|
||||
return handler.response[directionIsNext ? 'next' : 'prev'];
|
||||
}
|
||||
return handler.response.success;
|
||||
},
|
||||
/**
|
||||
* @private
|
||||
*/
|
||||
onSeriesDestroy: function (series) {
|
||||
var chart = this.chart, currentHighlightedPointDestroyed = chart.highlightedPoint &&
|
||||
chart.highlightedPoint.series === series;
|
||||
if (currentHighlightedPointDestroyed) {
|
||||
delete chart.highlightedPoint;
|
||||
if (chart.focusElement) {
|
||||
chart.focusElement.removeFocusBorder();
|
||||
}
|
||||
}
|
||||
},
|
||||
/**
|
||||
* @private
|
||||
*/
|
||||
destroy: function () {
|
||||
this.eventProvider.removeAddedEvents();
|
||||
}
|
||||
});
|
||||
export default SeriesKeyboardNavigation;
|
||||
Reference in New Issue
Block a user