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KML: Data handling and GeoJSON layer compatibility #165

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KML: Data handling and GeoJSON layer compatibility #165

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bd6f10e
KML: Inherited options
fbuccioni Jul 20, 2015
0969aaf
KML: Added feature property, parse of ExtendedData and manipulation o…
fbuccioni Jul 20, 2015
e8e66f4
KML: Added onEachFeature support
fbuccioni Jul 20, 2015
f2ce428
Merging with `shramov/leaflet-plugins:master`
fbuccioni May 2, 2016
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85 changes: 70 additions & 15 deletions layer/vector/KML.js
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Original file line number Diff line number Diff line change
@@ -1,15 +1,23 @@
L.KML = L.FeatureGroup.extend({
options: {
async: true
async: true,
popup: true,
displayName: false,
displayName_suffix: '_display_name',
name_on_props : false,
name_prop : 'kml_name',
descr_on_props : false,
descr_prop : 'kml_description',
onEachFeature: null
},

initialize: function (kml, options) {
L.Util.setOptions(this, options);
initialize: function(kml, options) {
this.options = L.Util.setOptions(this, options);
this._kml = kml;
this._layers = {};

if (kml) {
this.addKML(kml, options, this.options.async);
this.addKML(kml, this.options, this.options.async);
}
},

Expand Down Expand Up @@ -54,8 +62,8 @@ L.KML = L.FeatureGroup.extend({
this.loadXML(url, cb, options, async);
},

_addKML: function (xml) {
var layers = L.KML.parseKML(xml);
_addKML: function(xml, options) {
var layers = L.KML.parseKML(xml, options);
if (!layers || !layers.length) return;
for (var i = 0; i < layers.length; i++) {
this.fire('addlayer', {
Expand All @@ -71,8 +79,10 @@ L.KML = L.FeatureGroup.extend({
});

L.Util.extend(L.KML, {
parseKML: function (xml, options) {
if(options !== undefined)
this.options = options;

parseKML: function (xml) {
var style = this.parseStyles(xml);
this.parseStyleMap(xml, style);
var el = xml.getElementsByTagName('Folder');
Expand Down Expand Up @@ -274,23 +284,68 @@ L.Util.extend(L.KML, {
layer = new L.FeatureGroup(layers);
}

var name, descr = '';
el = place.getElementsByTagName('name');
this.parseData(place, layer)

return layer;
},

parseData: function(xml, layer) {
var name,
descr = '',
props = {},
eld, eldn, el, i, j, prop
;

el = xml.getElementsByTagName('ExtendedData')
for (i = 0; i < el.length; i++) {
for (j = 0; j < el[i].childNodes.length; j++) {
eld = el[i].childNodes[j];

if(eld.tagName === 'Data') {
prop = eld.getAttribute('name');
props[prop] = null

eldn = eld.getElementsByTagName('value')
if(eldn.length)
props[prop] = eldn[0].firstChild.nodeValue;

if(this.options.displayName) {
eldn = eld.getElementsByTagName('displayName')
if(eldn.length)
props[prop + this.options.displayName_suffix] = eldn[0].firstChild.nodeValue;
}
}
}
}

el = xml.getElementsByTagName('name');
if (el.length && el[0].childNodes.length) {
name = el[0].childNodes[0].nodeValue;
}
el = place.getElementsByTagName('description');

el = xml.getElementsByTagName('description');
for (i = 0; i < el.length; i++) {
for (j = 0; j < el[i].childNodes.length; j++) {
descr = descr + el[i].childNodes[j].nodeValue;
}
}

if (name) {
layer.on('add', function () {
layer.bindPopup('<h2>' + name + '</h2>' + descr);
});
}
layer.name = name;
if(this.options.name_on_props)
props[this.options.name_prop] = name;

layer.description = descr;
if(this.options.descr_on_props)
props[this.options.descr_prop] = descr;

layer.feature = layer.toGeoJSON();
layer.feature.properties = props;

if(this.options.popup && ( name || descr ))
layer.bindPopup('<h2>' + name + '</h2>' + descr);

if(typeof(this.options.onEachFeature) === 'function')
this.options.onEachFeature(layer.feature, layer);

return layer;
},
Expand Down