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L.AjaxGeoJSON = L.GeoJSON.extend({ |
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options : { |
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type: 'json' // 'json|kml|gpx' |
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}, |
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|
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initialize : function (url, options) { |
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L.setOptions(this, options); |
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this._url = url; |
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this.layer = L.geoJson(null, this.options); |
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}, |
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|
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onAdd : function (map) { |
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var _this = this, |
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type = this.options.type, |
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xhr; |
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|
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this.map = map; |
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|
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map.addLayer( this.layer ); |
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|
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if (!this.request) { |
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this.request = xhr = new XMLHttpRequest(); |
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|
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xhr.onreadystatechange = function () { |
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var data; |
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if (xhr.readyState === xhr.DONE && |
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xhr.status === 200) { |
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if (type === 'json') { |
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data = JSON.parse( xhr.responseText ); |
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} else if (['kml', 'gpx'].indexOf(type) !== -1) { |
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data = window.toGeoJSON[ type ]( xhr.responseXML ); |
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} |
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_this.json = data; |
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_this.layer.addData( data ); |
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_this.fire('ready'); |
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} |
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}; |
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|
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xhr.open('get', this._url, true); |
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|
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xhr.send(); |
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} |
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this.fire('add'); |
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}, |
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|
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eachLayer : function (fnc) { |
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this.layer.eachLayer( fnc ); |
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}, |
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|
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setStyle : function (style) { |
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|
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this.layer.setStyle( style ); |
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}, |
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|
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resetStyle : function (layer) { |
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this.layer.resetStyle( layer ); |
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}, |
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|
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onRemove : function (map) { |
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this.map.removeLayer( this.layer ); |
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}, |
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|
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getBounds : function () { |
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return this.layer.getBounds(); |
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} |
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}); |
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|
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L.ajaxGeoJson = function( url, options ) { |
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return new L.AjaxGeoJSON( url, options ); |
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}; |
