refactor map popups and add inspect trackpoint feature

website/src/lib/components/MapPopup.ts

@@ -0,0 +1,78 @@
+import { TrackPoint, Waypoint } from "gpx";
+import mapboxgl from "mapbox-gl";
+import { tick } from "svelte";
+import { get, writable, type Writable } from "svelte/store";
+import MapPopupComponent from "./MapPopup.svelte";
+
+export type PopupItem<T = Waypoint | TrackPoint | any> = {
+    item: T;
+    fileId?: string;
+};
+
+export class MapPopup {
+    map: mapboxgl.Map;
+    popup: mapboxgl.Popup;
+    item: Writable<PopupItem | null> = writable(null);
+    maybeHideBinded = this.maybeHide.bind(this);
+
+    constructor(map: mapboxgl.Map, options?: mapboxgl.PopupOptions) {
+        this.map = map;
+        this.popup = new mapboxgl.Popup(options);
+
+        let component = new MapPopupComponent({
+            target: document.body,
+            props: {
+                item: this.item
+            }
+        });
+
+        tick().then(() => this.popup.setDOMContent(component.container));
+    }
+
+    setItem(item: PopupItem | null) {
+        this.item.set(item);
+        if (item === null) {
+            this.hide();
+        } else {
+            tick().then(() => this.show());
+        }
+    }
+
+    show() {
+        const i = get(this.item);
+        if (i === null) {
+            this.hide();
+            return;
+        }
+        this.popup.setLngLat(this.getCoordinates()).addTo(this.map);
+        this.map.on('mousemove', this.maybeHideBinded);
+    }
+
+    maybeHide(e: mapboxgl.MapMouseEvent) {
+        const i = get(this.item);
+        if (i === null) {
+            this.hide();
+            return;
+        }
+        if (this.map.project(this.getCoordinates()).dist(this.map.project(e.lngLat)) > 60) {
+            this.hide();
+        }
+    }
+
+    hide() {
+        this.popup.remove();
+        this.map.off('mousemove', this.maybeHideBinded);
+    }
+
+    remove() {
+        this.popup.remove();
+    }
+
+    getCoordinates() {
+        const i = get(this.item);
+        if (i === null) {
+            return new mapboxgl.LngLat(0, 0);
+        }
+        return (i.item instanceof Waypoint || i.item instanceof TrackPoint) ? i.item.getCoordinates() : new mapboxgl.LngLat(i.item.lon, i.item.lat);
+    }
+}