forked from MapComplete/MapComplete
90 lines
2.9 KiB
TypeScript
90 lines
2.9 KiB
TypeScript
import * as L from "leaflet"
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import {UIEventSource} from "../../Logic/UIEventSource";
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import Loc from "../../Models/Loc";
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import BaseLayer from "../../Models/BaseLayer";
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import BaseUIElement from "../BaseUIElement";
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export class Basemap {
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public readonly map: L.Map;
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constructor(leafletElementId: string,
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location: UIEventSource<Loc>,
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currentLayer: UIEventSource<BaseLayer>,
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lastClickLocation?: UIEventSource<{ lat: number, lon: number }>,
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extraAttribution?: BaseUIElement) {
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console.log("Currentlayer is" ,currentLayer, currentLayer.data, currentLayer.data?.id)
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let previousLayer = currentLayer.data.layer();
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this.map = L.map(leafletElementId, {
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center: [location.data.lat ?? 0, location.data.lon ?? 0],
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zoom: location.data.zoom ?? 2,
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layers: [previousLayer],
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zoomControl: false,
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attributionControl: extraAttribution !== undefined
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});
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L.control.scale(
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{
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position: 'topright',
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}
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).addTo(this.map)
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// Users are not allowed to zoom to the 'copies' on the left and the right, stuff goes wrong then
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// We give a bit of leeway for people on the edges
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// Also see: https://www.reddit.com/r/openstreetmap/comments/ih4zzc/mapcomplete_a_new_easytouse_editor/g31ubyv/
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this.map.setMaxBounds(
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[[-100, -200], [100, 200]]
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);
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this.map.attributionControl.setPrefix(
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"<span id='leaflet-attribution'></span> | <a href='https://osm.org'>OpenStreetMap</a>");
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extraAttribution.AttachTo('leaflet-attribution')
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const self = this;
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currentLayer.addCallbackAndRun(layer => {
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const newLayer = layer.layer()
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if (newLayer === previousLayer) {
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return;
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}
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if (previousLayer !== undefined) {
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self.map.removeLayer(previousLayer);
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}
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previousLayer = newLayer;
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self.map.addLayer(newLayer);
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})
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this.map.on("moveend", function () {
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location.data.zoom = self.map.getZoom();
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location.data.lat = self.map.getCenter().lat;
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location.data.lon = self.map.getCenter().lng;
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location.ping();
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});
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location.map(loc => loc.zoom)
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.addCallback(zoom => {
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if (Math.abs(self.map.getZoom() - zoom) > 0.1) {
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self.map.setZoom(zoom, {});
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}
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})
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this.map.on("click", function (e) {
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// @ts-ignore
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lastClickLocation?.setData({lat: e.latlng.lat, lon: e.latlng.lng})
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});
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this.map.on("contextmenu", function (e) {
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// @ts-ignore
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lastClickLocation?.setData({lat: e.latlng.lat, lon: e.latlng.lng});
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});
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}
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}
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