From f7fc707159e500fcf76566e54fbcb41a18f84820 Mon Sep 17 00:00:00 2001
From: Deeptanshu Sankhwar <desa4692@colorado.edu>
Date: Tue, 11 Feb 2025 04:50:07 -0700
Subject: [PATCH] Show both lat/lon and lon/lat when searching coordinates
 (#10725)

---
 CHANGELOG.md               |  3 +++
 modules/ui/feature_list.js | 34 ++++++++++++++++++++++++++--------
 2 files changed, 29 insertions(+), 8 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index a4f4764d1..0db3452c3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -38,6 +38,7 @@ _Breaking developer changes, which may affect downstream projects or sites that
 # Unreleased (2.32.0-dev)
 
 #### :sparkles: Usability & Accessibility
+* Also show search result for coordinates in `lon/lat` order in search results ([#10720], thanks [@Deeptanshu-sankhwar])
 #### :scissors: Operations
 #### :camera: Street-Level
 #### :white_check_mark: Validation
@@ -54,9 +55,11 @@ _Breaking developer changes, which may affect downstream projects or sites that
 #### :hammer: Development
 
 [#10003]: https://github.com/openstreetmap/iD/pull/10003
+[#10720]: https://github.com/openstreetmap/iD/issues/10720
 [#10747]: https://github.com/openstreetmap/iD/issues/10747
 [#10748]: https://github.com/openstreetmap/iD/issues/10748
 [@hlfan]: https://github.com/hlfan
+[@Deeptanshu-sankhwar]: https://github.com/Deeptanshu-sankhwar
 
 
 # 2.31.1
diff --git a/modules/ui/feature_list.js b/modules/ui/feature_list.js
index 9e8a3df46..19c778e51 100644
--- a/modules/ui/feature_list.js
+++ b/modules/ui/feature_list.js
@@ -127,14 +127,32 @@ export function uiFeatureList(context) {
             var locationMatch = sexagesimal.pair(q.toUpperCase()) || dmsMatcher(q);
 
             if (locationMatch) {
-                var loc = [Number(locationMatch[0]), Number(locationMatch[1])];
-                result.push({
-                    id: loc[0] + '/' + loc[1],
-                    geometry: 'point',
-                    type: t('inspector.location'),
-                    name: dmsCoordinatePair([loc[1], loc[0]]),
-                    location: loc
-                });
+                const latLon = [Number(locationMatch[0]), Number(locationMatch[1])];
+                const lonLat = [latLon[1], latLon[0]];  // also try swapped order
+
+                const isLatLonValid = latLon[0] >= -90 && latLon[0] <= 90 && latLon[1] >= -180 && latLon[1] <= 180;
+                let   isLonLatValid = lonLat[0] >= -90 && lonLat[0] <= 90 && lonLat[1] >= -180 && lonLat[1] <= 180;
+                isLonLatValid &&= !q.match(/[NSEW]/i);
+                isLonLatValid &&= lonLat[0] !== lonLat[1];
+
+                if (isLatLonValid) {
+                    result.push({
+                        id: latLon[0] + '/' + latLon[1],
+                        geometry: 'point',
+                        type: t('inspector.location'),
+                        name: dmsCoordinatePair([latLon[1], latLon[0]]),
+                        location: latLon
+                    });
+                }
+                if (isLonLatValid) {
+                    result.push({
+                        id: lonLat[0] + '/' + lonLat[1],
+                        geometry: 'point',
+                        type: t('inspector.location'),
+                        name: dmsCoordinatePair([lonLat[1], lonLat[0]]),
+                        location: lonLat
+                    });
+                }
             }
 
             // A location search takes priority over an ID search