2013-04-26 09:59:28 +12:00
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(function(){L.MarkerClusterGroup=L.FeatureGroup.extend({options:{maxClusterRadius:80,iconCreateFunction:null,spiderfyOnMaxZoom:!0,showCoverageOnHover:!0,zoomToBoundsOnClick:!0,singleMarkerMode:!1,disableClusteringAtZoom:null,removeOutsideVisibleBounds:!0,animateAddingMarkers:!1,spiderfyDistanceMultiplier:1,polygonOptions:{}},initialize:function(t){L.Util.setOptions(this,t),this.options.iconCreateFunction||(this.options.iconCreateFunction=this._defaultIconCreateFunction),L.FeatureGroup.prototype.initialize.call(this,[]),this._inZoomAnimation=0,this._needsClustering=[],this._needsRemoving=[],this._currentShownBounds=null},addLayer:function(t){if(t instanceof L.LayerGroup){var e=[];for(var i in t._layers)e.push(t._layers[i]);return this.addLayers(e)}if(!this._map)return this._needsClustering.push(t),this;if(this.hasLayer(t))return this;this._unspiderfy&&this._unspiderfy(),this._addLayer(t,this._maxZoom);var n=t,r=this._map.getZoom();if(t.__parent)for(;n.__parent._zoom>=r;)n=n.__parent;return this._currentShownBounds.contains(n.getLatLng())&&(this.options.animateAddingMarkers?this._animationAddLayer(t,n):this._animationAddLayerNonAnimated(t,n)),this},removeLayer:function(t){return this._map?t.__parent?(this._unspiderfy&&(this._unspiderfy(),this._unspiderfyLayer(t)),this._removeLayer(t,!0),t._icon&&(L.FeatureGroup.prototype.removeLayer.call(this,t),t.setOpacity(1)),this):this:(!this._arraySplice(this._needsClustering,t)&&this.hasLayer(t)&&this._needsRemoving.push(t),this)},addLayers:function(t){var e,i,n;if(!this._map)return this._needsClustering=this._needsClustering.concat(t),this;for(e=0,i=t.length;i>e;e++)if(n=t[e],!this.hasLayer(n)&&(this._addLayer(n,this._maxZoom),n.__parent&&2===n.__parent.getChildCount())){var r=n.__parent.getAllChildMarkers(),s=r[0]===n?r[1]:r[0];L.FeatureGroup.prototype.removeLayer.call(this,s)}for(e in this._layers)n=this._layers[e],n instanceof L.MarkerCluster&&n._iconNeedsUpdate&&n._updateIcon();return this._topClusterLevel._recursivelyAddChildrenToMap(null,this._zoom,this._currentShownBounds),this},removeLayers:function(t){var e,i,n;if(!this._map){for(e=0,i=t.length;i>e;e++)this._arraySplice(this._needsClustering,t[e]);return this}for(e=0,i=t.length;i>e;e++)n=t[e],n.__parent&&(this._removeLayer(n,!0,!0),n._icon&&(L.FeatureGroup.prototype.removeLayer.call(this,n),n.setOpacity(1)));this._topClusterLevel._recursivelyAddChildrenToMap(null,this._zoom,this._currentShownBounds);for(e in this._layers)n=this._layers[e],n instanceof L.MarkerCluster&&n._updateIcon();return this},clearLayers:function(){this._map||(this._needsClustering=[],delete this._gridClusters,delete this._gridUnclustered),this._noanimationUnspiderfy&&this._noanimationUnspiderfy();for(var t in this._layers)L.FeatureGroup.prototype.removeLayer.call(this,this._layers[t]);return this.eachLayer(function(t){delete t.__parent}),this._map&&this._generateInitialClusters(),this},getBounds:function(){var t=new L.LatLngBounds;if(this._topClusterLevel)t.extend(this._topClusterLevel._bounds);else for(var e=this._needsClustering.length-1;e>=0;e--)t.extend(this._needsClustering[e].getLatLng());return t},eachLayer:function(t,e){var i,n=this._needsClustering.slice();for(this._topClusterLevel&&this._topClusterLevel.getAllChildMarkers(n),i=n.length-1;i>=0;i--)t.call(e,n[i])},hasLayer:function(t){if(t._noHas)return!1;var e,i=this._needsClustering;for(e=i.length-1;e>=0;e--)if(i[e]===t)return!0;for(i=this._needsRemoving,e=i.length-1;e>=0;e--)if(i[e]===t)return!1;return!(!t.__parent||t.__parent._group!==this)},zoomToShowLayer:function(t,e){var i=function(){if((t._icon||t.__parent._icon)&&!this._inZoomAnimation)if(this._map.off("moveend",i,this),this.off("animationend",i,this),t._icon)e();else if(t.__parent._icon){var n=function(){this.off("spiderfied",n,this),e()};this.on("spiderfied",n,this),t.__parent.spiderfy()}};t._icon?e():t.__parent._zoom<this._map.getZoom()?(this._map.on("moveend",i,this),t._icon||this._map.panTo(t.getLatLng())):(this._map.on("moveend",i,this),this.on("animationend",i,this),this._map.setView(t.getLatLng(),t.__parent._zoom+1),t.__paren
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