!(function (e, i) { typeof define === 'function' && define.amd ? define(['leaflet'], i) : i(typeof module === 'object' && module.exports ? require('leaflet') : e.L) }(this, function (e, i) { e.MarkerClusterGroup.include({ _originalOnAddFreezable: e.MarkerClusterGroup.prototype.onAdd, onAdd: function (e) { var i = this._zoom; this._originalOnAddFreezable(e), this._frozen && (i >= 0 && i !== this._zoom && (this._featureGroup.clearLayers(), this._zoom = i, this.addLayers([])), e.off('zoomend', this._zoomEnd, this), e.off('moveend', this._moveEnd, this), e.on('zoomend moveend', this._viewChangeEndNotClustering, this)) }, _originalOnRemove: e.MarkerClusterGroup.prototype.onRemove, onRemove: function (e) { e.off('zoomend moveend', this._viewChangeEndNotClustering, this), this._originalOnRemove(e) }, disableClustering: function () { return this.freezeAtZoom(this._maxZoom + 1) }, disableClusteringKeepSpiderfy: function () { return this.freezeAtZoom(this._maxZoom) }, enableClustering: function () { return this.unfreeze() }, unfreeze: function () { return this.freezeAtZoom(!1) }, freezeAtZoom: function (e) { this._processQueue(); var o = this._map; e === i || e === !0 || e !== e ? e = o ? Math.round(o.getZoom()) : -1 : e === 'max' ? e = this._maxZoom + 1 : e === 'maxKeepSpiderfy' && (e = this._maxZoom); var t = typeof e === 'number'; if (this._frozen) { if (!t) return this._unfreeze(), this } else { if (!t) return this; this._initiateFreeze() } return this._artificialZoomSafe(this._zoom, e), this }, _initiateFreeze: function () { var e = this._map; this._frozen = !0, e && (e.off('zoomend', this._zoomEnd, this), e.off('moveend', this._moveEnd, this), e.on('zoomend moveend', this._viewChangeEndNotClustering, this)) }, _unfreeze: function () { var e = this._map; this._frozen = !1, e && (e.off('zoomend moveend', this._viewChangeEndNotClustering, this), e.on('zoomend', this._zoomEnd, this), e.on('moveend', this._moveEnd, this), this._executeAfterUnspiderfy(function () { this._zoomEnd() }, this)) }, _executeAfterUnspiderfy: function (e, i) { return this._unspiderfy && this._spiderfied ? (this.once('animationend', function () { e.call(i) }), void this._unspiderfy()) : void e.call(i) }, _artificialZoomSafe: function (e, i) { this._zoom = i, this._map && e !== i && this._executeAfterUnspiderfy(function () { this._artificialZoom(e, i) }, this) }, _artificialZoom: function (e, i) { e < i ? (this._animationStart(), this._topClusterLevel._recursivelyRemoveChildrenFromMap(this._currentShownBounds, this._map.getMinZoom(), e, this._getExpandedVisibleBounds()), this._animationZoomIn(e, i)) : e > i && (this._animationStart(), this._animationZoomOut(e, i)) }, _viewChangeEndNotClustering: function () { var e = this._featureGroup; var i = this._getExpandedVisibleBounds(); var o = this._zoom; e.eachLayer(function (t) { !i.contains(t._latlng) && t.__parent && t.__parent._zoom < o && e.removeLayer(t) }), this._topClusterLevel._recursively(i, -1, o, function (t) { if (t._zoom !== o) for (var n, r = t._markers, s = 0; s < r.length; s++)n = t._markers[s], i.contains(n._latlng) && e.addLayer(n) }, function (e) { e._addToMap() }), this._currentShownBounds = i }, _originalZoomOrSpiderfy: e.MarkerClusterGroup.prototype._zoomOrSpiderfy, _zoomOrSpiderfy: function (e) { this._frozen && this.options.spiderfyOnMaxZoom ? (e.layer.spiderfy(), e.originalEvent && e.originalEvent.keyCode === 13 && map._container.focus()) : this._originalZoomOrSpiderfy(e) } }) }))
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