MapPointer.js
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/**
* (c) 2010-2018 Torstein Honsi
*
* License: www.highcharts.com/license
*/
'use strict';
import H from '../parts/Globals.js';
import '../parts/Utilities.js';
import '../parts/Pointer.js';
var extend = H.extend,
pick = H.pick,
Pointer = H.Pointer,
wrap = H.wrap;
// 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
);
}
}
);