+ function respondToHomeUpdate() {
+ var lat = $("#home_lat").val().trim(),
+ lon = $("#home_lon").val().trim(),
+ location;
+
+ try {
+ if (lat && lon) {
+ location = L.latLng(lat, lon);
+ }
+ $("#home_lat, #home_lon").removeClass("is-invalid");
+ } catch (error) {
+ if (lat && isNaN(lat)) $("#home_lat").addClass("is-invalid");
+ if (lon && isNaN(lon)) $("#home_lon").addClass("is-invalid");
+ }
+
+ $("#home_message").toggleClass("invisible", Boolean(location));
+ $("#home_show").prop("hidden", !location);
+ $("#home_delete").prop("hidden", !location);
+ $("#home_undelete").prop("hidden", !(!location && deleted_lat && deleted_lon));
+ if (location) {
+ marker.setLatLng([lat, lon]);
+ marker.addTo(map);
+ map.panTo([lat, lon]);
+ } else {
+ marker.removeFrom(map);
+ }
+ }
+
+ function isCloseEnoughToMapCenter(location) {
+ var inputPt = map.latLngToContainerPoint(location),
+ centerPt = map.latLngToContainerPoint(map.getCenter());
+
+ return centerPt.distanceTo(inputPt) < 10;
+ }
+