wwbsr/node_modules/highcharts/es-modules/Maps/MapPointer.js

/* *
 *
 *  (c) 2010-2020 Torstein Honsi
 *
 *  License: www.highcharts.com/license
 *
 *  !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
 *
 * */
'use strict';
import Pointer from '../Core/Pointer.js';
import U from '../Core/Utilities.js';
var extend = U.extend, pick = U.pick, wrap = U.wrap;
/* eslint-disable no-invalid-this */
// Extend the Pointer
extend(Pointer.prototype, {
    // The event handler for the doubleclick event
    onContainerDblClick: function (e) {
        var chart = this.chart;
        e = this.normalize(e);
        if (chart.options.mapNavigation.enableDoubleClickZoomTo) {
            if (chart.pointer.inClass(e.target, 'highcharts-tracker') &&
                chart.hoverPoint) {
                chart.hoverPoint.zoomTo();
            }
        }
        else if (chart.isInsidePlot(e.chartX - chart.plotLeft, e.chartY - chart.plotTop)) {
            chart.mapZoom(0.5, chart.xAxis[0].toValue(e.chartX), chart.yAxis[0].toValue(e.chartY), e.chartX, e.chartY);
        }
    },
    // The event handler for the mouse scroll event
    onContainerMouseWheel: function (e) {
        var chart = this.chart, delta;
        e = this.normalize(e);
        // Firefox uses e.detail, WebKit and IE uses wheelDelta
        delta = e.detail || -(e.wheelDelta / 120);
        if (chart.isInsidePlot(e.chartX - chart.plotLeft, e.chartY - chart.plotTop)) {
            chart.mapZoom(Math.pow(chart.options.mapNavigation.mouseWheelSensitivity, delta), chart.xAxis[0].toValue(e.chartX), chart.yAxis[0].toValue(e.chartY), e.chartX, e.chartY);
        }
    }
});
// The pinchType is inferred from mapNavigation options.
wrap(Pointer.prototype, 'zoomOption', function (proceed) {
    var mapNavigation = this.chart.options.mapNavigation;
    // Pinch status
    if (pick(mapNavigation.enableTouchZoom, mapNavigation.enabled)) {
        this.chart.options.chart.pinchType = 'xy';
    }
    proceed.apply(this, [].slice.call(arguments, 1));
});
// Extend the pinchTranslate method to preserve fixed ratio when zooming
wrap(Pointer.prototype, 'pinchTranslate', function (proceed, pinchDown, touches, transform, selectionMarker, clip, lastValidTouch) {
    var xBigger;
    proceed.call(this, pinchDown, touches, transform, selectionMarker, clip, lastValidTouch);
    // Keep ratio
    if (this.chart.options.chart.type === 'map' && this.hasZoom) {
        xBigger = transform.scaleX > transform.scaleY;
        this.pinchTranslateDirection(!xBigger, pinchDown, touches, transform, selectionMarker, clip, lastValidTouch, xBigger ? transform.scaleX : transform.scaleY);
    }
});