feat: add geolocation permission control

src/components/LeafletMap/controls.ts

@@ -1,19 +1,33 @@
 import L from "leaflet";
 
-const TargetLocationControl = L.Control.extend({
+const GoToTargetControl = L.Control.extend({
-  onAdd: function (map: L.Map, targetLocation: L.LatLngTuple) {
+  onAdd: function () {
     const locationButton = document.createElement("button");
 
+    locationButton.id = "go-to-target-control-button";
+
     locationButton.textContent = "Hedefe Git";
 
     locationButton.classList.add("custom-map-control-button");
 
-    locationButton.addEventListener("click", () => {
+    return locationButton;
-      map.setView(targetLocation, 18);
+  },
 });
 
+const AskPermissonControl = L.Control.extend({
+  onAdd: function () {
+    const locationButton = document.createElement("button");
+
+    locationButton.id = "ask-permission-control-button";
+
+    locationButton.textContent = "Konum İzni Ver";
+
+    locationButton.classList.add("custom-map-control-button");
+
+    locationButton.type = "button";
+
     return locationButton;
   },
 });
 
-export { TargetLocationControl };
+export { GoToTargetControl, AskPermissonControl };

src/components/LeafletMap/geolocation.ts

@@ -0,0 +1,59 @@
+import Toastify from "toastify-js";
+import L from "leaflet";
+import { currentLocationIcon } from "./icons";
+
+function onLocationError(err: L.ErrorEvent) {
+  let errorMessage;
+  switch (err.code) {
+    case 1:
+      errorMessage =
+        "Konum izni alınamadı, lütfen tarayıcınızın ve cihazınızın gizlilik ayarlarını kontrol edin.";
+      break;
+    case 2:
+      errorMessage =
+        "Konumunuz tespit edilemedi, lütfen biraz sonra tekrar deneyiniz.";
+      break;
+    case 3:
+      errorMessage =
+        "Konum isteği zaman aşımına uğradı, lütfen sayfayı yenileyip tekrar deneyiniz.";
+      break;
+    default:
+      errorMessage =
+        "Konum izni alınamadı, lütfen tarayıcınızın ve cihazınızın gizlilik ayarlarını kontrol edin.";
+      break;
+  }
+
+  Toastify({
+    text: errorMessage,
+    duration: 3000,
+    gravity: "top", // `top` or `bottom`
+    position: "center", // `left`, `center` or `right`
+    stopOnFocus: true, // Prevents dismissing of toast on hover
+    style: {
+      background: "black",
+      borderRadius: "6px",
+      margin: "16px",
+    },
+    onClick: function () {}, // Callback after click
+  }).showToast();
+}
+
+function onLocationSuccess(locationEvent: L.LocationEvent) {
+  const position = locationEvent.latlng;
+
+  const currentPos = {
+    lat: position.lat,
+    lng: position.lng,
+  };
+
+  if (this._currentLocationMarker) {
+    this._currentLocationMarker.setLatLng(currentPos);
+  } else {
+    this._currentLocationMarker = L.marker(currentPos, {
+      icon: currentLocationIcon,
+    });
+    this._currentLocationMarker.addTo(this._map);
+  }
+}
+
+export { onLocationError, onLocationSuccess };

src/components/LeafletMap/icons.ts

@@ -1,11 +1,11 @@
-import { icon } from "leaflet";
+import L from "leaflet";
 
-var targetLocationIcon = icon({
+var targetLocationIcon = L.icon({
   iconUrl: "goal.svg",
   iconSize: [32, 32],
 });
 
-var currentLocationIcon = icon({
+var currentLocationIcon = L.icon({
   iconUrl: "blue-dot.png",
   iconSize: [32, 32],
 });

src/components/leaflet-map.ts

@@ -6,12 +6,13 @@ import { customElement, property, query, state } from "lit/decorators.js";
 import L, { Map } from "leaflet";
 import type { LatLngTuple } from "leaflet";
 import { targetLocationIcon } from "./LeafletMap/icons";
-import { TargetLocationControl } from "./LeafletMap/controls";
+import { AskPermissonControl, GoToTargetControl } from "./LeafletMap/controls";
 
 // Styles
 import leafletStyles from "leaflet/dist/leaflet.css?inline";
 import globalStyles from "@/styles/globals.css?inline";
 import mapStyles from "@/styles/locked-page.css?inline";
+import { onLocationError, onLocationSuccess } from "./LeafletMap/geolocation";
 
 @customElement("leaflet-map")
 export class LeafletMap extends LitElement {
@@ -26,6 +27,12 @@ export class LeafletMap extends LitElement {
   @query("#mapid")
   _mapElement!: HTMLDivElement;
 
+  @query("#go-to-target-control-button")
+  _goToTargetButton!: HTMLButtonElement;
+
+  @query("#ask-permission-control-button")
+  _askPermissionButton!: HTMLButtonElement;
+
   // Properties and states
   @property({ type: Object }) targetLocation?: LatLngTuple;
 
@@ -38,32 +45,47 @@ export class LeafletMap extends LitElement {
   @state()
   protected _watchingLocation = false;
 
+  private _startWatchingLocation = () => {
+    this._map?.locate();
+  };
+
   firstUpdated(): void {
     if (!this._mapElement || !this.targetLocation) return;
-    var map = new Map(this._mapElement).setView(this.targetLocation, 13);
+    this._map = new Map(this._mapElement).setView(this.targetLocation, 13);
+
+    this._map.on("locationerror", onLocationError);
+
+    this._map.on("locationfound", onLocationSuccess.bind(this));
 
     L.tileLayer("https://tile.openstreetmap.org/{z}/{x}/{y}.png", {
       maxZoom: 19,
       attribution:
         '&copy; <a href="http://www.openstreetmap.org/copyright">OpenStreetMap</a>',
-    }).addTo(map);
+    }).addTo(this._map);
 
     // Add target location icon marker
-    L.marker(this.targetLocation, { icon: targetLocationIcon }).addTo(map);
+    L.marker(this.targetLocation, { icon: targetLocationIcon }).addTo(
+      this._map
+    );
 
     L.circle(this.targetLocation, {
       color: "blue",
       fillColor: "#30f",
       fillOpacity: 0.2,
       radius: 50,
-    }).addTo(map);
+    }).addTo(this._map);
 
     // Add target location control
-    const targetLocationControl = new TargetLocationControl({
+    const targetLocationControl = new GoToTargetControl({
       position: "bottomleft",
     });
 
-    targetLocationControl.addTo(map);
+    targetLocationControl.addTo(this._map);
+
+    L.DomEvent.on(this._goToTargetButton, "click", () => {
+      if (!this.targetLocation || !this._map) return;
+      this._map.setView(this.targetLocation, 18);
+    });
 
     // Check geolocation permission, if user has given permission before
     // start watching user location
@@ -76,7 +98,22 @@ export class LeafletMap extends LitElement {
             break;
           case "denied":
             this._geolocationPermissionStatus = "denied";
+            break;
           case "prompt":
+            if (!this._map) break;
+            const askPermissionControl = new AskPermissonControl({
+              position: "bottomleft",
+            });
+            askPermissionControl.onRemove = () => {
+              L.DomEvent.off(this._askPermissionButton);
+            };
+            askPermissionControl.addTo(this._map);
+            L.DomEvent.on(
+              this._askPermissionButton,
+              "click",
+              this._startWatchingLocation
+            );
+            break;
           default:
             break;
         }