79 lines
1.8 KiB
JavaScript
79 lines
1.8 KiB
JavaScript
import RealtimeTileLayer from './RealtimeTileLayer.js';
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class LayerManager {
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setup(wsChannel, layers, map, currentLayerId){
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this.listeners = [];
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this.currentLayer = layers[0];
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this.layers = layers;
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this.map = map;
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this.layerObjects = {};
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var self = this;
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//All layers
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layers.forEach(function(layer){
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var tileLayer = new RealtimeTileLayer(wsChannel, layer.id, map);
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self.layerObjects[layer.name] = tileLayer;
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if (layer.id == currentLayerId){
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tileLayer.addTo(map);
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self.currentLayer = layer;
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}
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});
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map.on('baselayerchange', function (e) {
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self.setLayerId(e.layer.layerId);
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});
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}
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switchLayer(layerId){
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var self = this;
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Object.keys(this.layerObjects).forEach(function(key){
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var layerObj = self.layerObjects[key];
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if (self.map.hasLayer(layerObj)){
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self.map.removeLayer(layerObj);
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}
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});
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Object.keys(this.layerObjects).forEach(function(key){
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var layerObj = self.layerObjects[key];
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if (layerObj.layerId == layerId){
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self.map.addLayer(layerObj);
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}
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});
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}
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setLayerId(layerId){
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var self = this;
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this.layers.forEach(function(layer){
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if (layer.id == layerId){
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self.currentLayer = layer;
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self.listeners.forEach(function(listener){
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listener(layer);
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});
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return;
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}
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});
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}
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getLayerByY(y){
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return this.layers.find(layer => (y >= (layer.from*16) && y <= (layer.to*16)));
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}
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addListener(listener){
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this.listeners.push(listener);
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}
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removeListener(listener){
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this.listeners = this.listeners.filter(function(el){
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return el != listener;
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});
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}
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getCurrentLayer(){
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return this.currentLayer;
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}
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}
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export default new LayerManager();
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