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work in progress - api for java app to interface with the layer chooser

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This commit is contained in:
Jon Atkins 2013-05-16 22:06:25 +01:00
parent 746d4bdc2b
commit b24c7f5d32
1 changed files with 61 additions and 0 deletions
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61
code/smartphone.js
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@ -101,4 +101,65 @@ window.runOnSmartphonesAfterBoot = function() {
window.MAX_DRAWN_PORTALS = 500;
window.MAX_DRAWN_LINKS = 200;
window.MAX_DRAWN_FIELDS = 100;
//hook some additional code into the LayerControl so it's easy for the mobile app to interface with it
//WARNING: does depend on internals of the L.Control.Layers code
window.layerChooser.getLayers = function() {
var baseLayers = new Array();
var overlayLayers = new Array();
for (i in this._layers) {
var obj = this._layers[i];
var layerActive = window.map.hasLayer(obj.layer);
var info = {
layerId: L.stamp(obj.layer),
name: obj.name,
active: layerActive
}
if (obj.overlay) {
overlayLayers.push(info);
} else {
baseLayers.push(info);
}
}
return {
baseLayers: baseLayers,
overlayLayers: overlayLayers
}
}
window.layerChooser.showLayer = function(id,show) {
if (show === undefined) show = true;
obj = this._layers[id];
if (!obj) return false;
if(show) {
if (!this._map.hasLayer(obj.layer)) {
//the layer to show is not currently active
this._map.addLayer(obj.layer);
//if it's an overlay, remove any others
if (!obj.overlay) {
for(i in this._layers) {
if (i != id) {
var other = this._layers[i];
if (!other.overlay && this._map.hasLayer(other.layer)) this._map.removeLayer(other.layer);
}
}
}
}
} else {
if (this._map.hasLayer(obj.layer)) {
this._map.removeLayer(obj.layer);
}
}
//below logic based on code in L.Control.Layers _onInputClick
if(!obj.overlay) {
this._map.setZoom(this._map.getZoom());
this._map.fire('baselayerchange', {layer: obj.layer});
}
return true;
}
}