ben/brouter-web
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions 1

Restore active layers (#205)

Browse source
This commit is contained in:
Norbert Renner 2019-06-18 09:09:55 +02:00
parent 708b35f642
commit ef41a9e5ff
4 changed files with 93 additions and 31 deletions
Download patch file Download diff file Expand all files Collapse all files

77
js/control/LayersTab.js
View file

@ -26,6 +26,26 @@ BR.LayersTab = BR.ControlLayers.extend({
return this;
},
onAdd: function(map) {
BR.ControlLayers.prototype.onAdd.call(this, map);
map.on(
'baselayerchange overlayadd overlayremove',
this.storeActiveLayers,
this
);
},
onRemove: function(map) {
BR.ControlLayers.prototype.onRemove.call(this, map);
map.off(
'baselayerchange overlayadd overlayremove',
this.storeActiveLayers,
this
);
},
initButtons: function() {
var expandTree = function(e) {
this.jstree.open_all();
@ -298,9 +318,7 @@ BR.LayersTab = BR.ControlLayers.extend({
if (!overlaysOnly || (overlaysOnly && obj.overlay)) {
var hasLayer = !!this._getLayer(L.Util.stamp(obj.layer));
if (hasLayer) {
if (!this._map.hasLayer(obj.layer)) {
this._map.addLayer(obj.layer);
}
this.activateLayer(obj);
} else if (!obj.overlay) {
// saved base layer has been removed during preview, select first
this.activateFirstLayer();
@ -379,6 +397,59 @@ BR.LayersTab = BR.ControlLayers.extend({
this.removePreviewBounds();
this.removePreviewLayer();
this.restoreActiveLayers();
},
toLayerString: function(obj) {
return obj.layer.id ? obj.layer.id : obj.name;
},
getLayerFromString: function(layerString) {
var obj = this.getLayerById(layerString);
if (!obj) {
// fallback to name for custom and config layers
obj = this.getLayer(layerString);
if (!obj) {
// legacy layer name support
obj = this.getLayerByLegacyName(layerString);
}
}
return obj;
},
storeActiveLayers: function() {
if (BR.Util.localStorageAvailable()) {
var objList = this.getActiveLayers();
var idList = objList.map(
L.bind(function(obj) {
return this.toLayerString(obj);
}, this)
);
var str = JSON.stringify(idList);
localStorage.setItem('map/activeLayers', str);
}
},
loadActiveLayers: function() {
if (BR.Util.localStorageAvailable()) {
var item = localStorage.getItem('map/activeLayers');
if (item) {
var idList = JSON.parse(item);
for (var i = 0; i < idList.length; i++) {
var id = idList[i];
var obj = this.getLayerFromString(id);
if (obj) {
this.activateLayer(obj);
}
}
}
}
}
});