window resize keeps map geolocate control following

src/ui/control/geolocate_control.js

@@ -295,7 +295,8 @@ class GeolocateControl extends Evented {
         // the watch mode to background watch, so that the marker is updated but not the camera.
         if (this.options.trackUserLocation) {
             this._map.on('movestart', (event) => {
-                if (!event.geolocateSource && this._watchState === 'ACTIVE_LOCK') {
+                const fromResize = event.originalEvent && event.originalEvent.type === 'resize';
+                if (!event.geolocateSource && this._watchState === 'ACTIVE_LOCK' && !fromResize) {
                     this._watchState = 'BACKGROUND';
                     this._geolocateButton.classList.add('mapboxgl-ctrl-geolocate-background');
                     this._geolocateButton.classList.remove('mapboxgl-ctrl-geolocate-active');

src/ui/map.js

@@ -1849,9 +1849,9 @@ class Map extends Camera {
         this._update();
     }
 
-    _onWindowResize() {
+    _onWindowResize(event: Event) {
         if (this._trackResize) {
-            this.resize()._update();
+            this.resize({originalEvent: event})._update();
         }
     }
 

test/unit/ui/control/geolocate.test.js

@@ -157,7 +157,7 @@ test('GeolocateControl no watching map camera on geolocation', (t) => {
 
     const click = new window.Event('click');
 
-    map.on('moveend', () => {
+    map.once('moveend', () => {
         t.deepEqual(lngLatAsFixed(map.getCenter(), 4), {lat: 10, lng: 20}, 'map centered on location');
 
         const mapBounds = map.getBounds();
@@ -334,3 +334,45 @@ test('GeolocateControl trackuserlocationstart event', (t) => {
     geolocate._geolocateButton.dispatchEvent(click);
     geolocation.send({latitude: 10, longitude: 20, accuracy: 30, timestamp: 40});
 });
+
+test('GeolocateControl does not switch to BACKGROUND and stays in ACTIVE_LOCK state on window resize', (t) => {
+    const map = createMap(t);
+    const geolocate = new GeolocateControl({
+        trackUserLocation: true,
+    });
+    map.addControl(geolocate);
+
+    const click = new window.Event('click');
+
+    geolocate.once('geolocate', () => {
+        t.equal(geolocate._watchState, 'ACTIVE_LOCK');
+        window.dispatchEvent(new window.Event('resize'));
+        t.equal(geolocate._watchState, 'ACTIVE_LOCK');
+        t.end();
+    });
+
+    geolocate._geolocateButton.dispatchEvent(click);
+    geolocation.send({latitude: 10, longitude: 20, accuracy: 30, timestamp: 40});
+});
+
+test('GeolocateControl switches to BACKGROUND state on map manipulation', (t) => {
+    const map = createMap(t);
+    const geolocate = new GeolocateControl({
+        trackUserLocation: true,
+    });
+    map.addControl(geolocate);
+
+    const click = new window.Event('click');
+
+    geolocate.once('geolocate', () => {
+        t.equal(geolocate._watchState, 'ACTIVE_LOCK');
+        map.jumpTo({
+            center: [0, 0]
+        });
+        t.equal(geolocate._watchState, 'BACKGROUND');
+        t.end();
+    });
+
+    geolocate._geolocateButton.dispatchEvent(click);
+    geolocation.send({latitude: 10, longitude: 20, accuracy: 30, timestamp: 40});
+});