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| author | Aditi <aditi.iitr@gmail.com> | 2013-06-21 23:09:22 +0530 |
|---|---|---|
| committer | Aditi <aditi.iitr@gmail.com> | 2013-06-21 23:09:22 +0530 |
| commit | 2719d546a57c2332e36cc056ac80ec5d79672c1a (patch) | |
| tree | 1f62ab8f761026d4faa5442032df133fc90d47f2 /extlib/leaflet/src/layer/LayerGroup.js | |
| parent | 1a6f065419290b3f4234ce4a89bb2c46b13e8a12 (diff) | |
| parent | 92b22e7deac547835f69168f97012b52e87b6de4 (diff) | |
| download | mediagoblin-2719d546a57c2332e36cc056ac80ec5d79672c1a.tar.lz mediagoblin-2719d546a57c2332e36cc056ac80ec5d79672c1a.tar.xz mediagoblin-2719d546a57c2332e36cc056ac80ec5d79672c1a.zip | |
Merge remote-tracking branch 'cweb/master'
Diffstat (limited to 'extlib/leaflet/src/layer/LayerGroup.js')
| -rw-r--r-- | extlib/leaflet/src/layer/LayerGroup.js | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/extlib/leaflet/src/layer/LayerGroup.js b/extlib/leaflet/src/layer/LayerGroup.js new file mode 100644 index 00000000..58940d40 --- /dev/null +++ b/extlib/leaflet/src/layer/LayerGroup.js @@ -0,0 +1,58 @@ +/*
+ * L.LayerGroup is a class to combine several layers so you can manipulate the group (e.g. add/remove it) as one layer.
+ */
+
+L.LayerGroup = L.Class.extend({
+ initialize: function(layers) {
+ this._layers = {};
+
+ if (layers) {
+ for (var i = 0, len = layers.length; i < len; i++) {
+ this.addLayer(layers[i]);
+ }
+ }
+ },
+
+ addLayer: function(layer) {
+ var id = L.Util.stamp(layer);
+ this._layers[id] = layer;
+
+ if (this._map) {
+ this._map.addLayer(layer);
+ }
+ return this;
+ },
+
+ removeLayer: function(layer) {
+ var id = L.Util.stamp(layer);
+ delete this._layers[id];
+
+ if (this._map) {
+ this._map.removeLayer(layer);
+ }
+ return this;
+ },
+
+ clearLayers: function() {
+ this._iterateLayers(this.removeLayer, this);
+ return this;
+ },
+
+ onAdd: function(map) {
+ this._map = map;
+ this._iterateLayers(map.addLayer, map);
+ },
+
+ onRemove: function(map) {
+ this._iterateLayers(map.removeLayer, map);
+ delete this._map;
+ },
+
+ _iterateLayers: function(method, context) {
+ for (var i in this._layers) {
+ if (this._layers.hasOwnProperty(i)) {
+ method.call(context, this._layers[i]);
+ }
+ }
+ }
+});
\ No newline at end of file |