From de0bf2549978f0b517c06c3eadaa477b37433ea6 Mon Sep 17 00:00:00 2001
From: Anton Khorev <tony29@yandex.ru>
Date: Wed, 18 Dec 2024 18:28:18 +0300
Subject: [PATCH 1/3] Rename return values of getMapBaseLayerId() to layerId

---
 app/assets/javascripts/leaflet.key.js   | 4 ++--
 app/assets/javascripts/leaflet.share.js | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/app/assets/javascripts/leaflet.key.js b/app/assets/javascripts/leaflet.key.js
index f89ae0c3d9..090583ced1 100644
--- a/app/assets/javascripts/leaflet.key.js
+++ b/app/assets/javascripts/leaflet.key.js
@@ -34,13 +34,13 @@ L.OSM.key = function (options) {
     }
 
     function update() {
-      var layer = map.getMapBaseLayerId(),
+      var layerId = map.getMapBaseLayerId(),
           zoom = map.getZoom();
 
       $(".mapkey-table-entry").each(function () {
         var data = $(this).data();
         $(this).toggle(
-          layer === data.layer &&
+          layerId === data.layer &&
           (!data.zoomMin || zoom >= data.zoomMin) &&
           (!data.zoomMax || zoom <= data.zoomMax)
         );
diff --git a/app/assets/javascripts/leaflet.share.js b/app/assets/javascripts/leaflet.share.js
index 40ba020e6c..f0d2781098 100644
--- a/app/assets/javascripts/leaflet.share.js
+++ b/app/assets/javascripts/leaflet.share.js
@@ -410,15 +410,15 @@ L.OSM.share = function (options) {
       $("#mapnik_image_width").text(mapWidth);
       $("#mapnik_image_height").text(mapHeight);
 
-      const layer = map.getMapBaseLayerId();
+      const layerId = map.getMapBaseLayerId();
       const layerKeys = new Map([
         ["mapnik", "standard"],
         ["cyclemap", "cycle_map"],
         ["transportmap", "transport_map"]
       ]);
 
-      $("#mapnik_image_layer").text(layerKeys.has(layer) ? I18n.t(`javascripts.map.base.${layerKeys.get(layer)}`) : "");
-      $("#map_format").val(layer);
+      $("#mapnik_image_layer").text(layerKeys.has(layerId) ? I18n.t(`javascripts.map.base.${layerKeys.get(layerId)}`) : "");
+      $("#map_format").val(layerId);
 
       $("#map_zoom").val(map.getZoom());
       $("#mapnik_lon").val(map.getCenter().lng);

From 2c84465cc2c131044cb290d596513723d4ce445a Mon Sep 17 00:00:00 2001
From: Anton Khorev <tony29@yandex.ru>
Date: Tue, 10 Dec 2024 00:31:59 +0300
Subject: [PATCH 2/3] Add map.getMapBaseLayer()

---
 app/assets/javascripts/leaflet.map.js | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/app/assets/javascripts/leaflet.map.js b/app/assets/javascripts/leaflet.map.js
index 02ed318acf..6537b0b233 100644
--- a/app/assets/javascripts/leaflet.map.js
+++ b/app/assets/javascripts/leaflet.map.js
@@ -130,11 +130,14 @@ L.OSM.Map = L.Map.extend({
   },
 
   getMapBaseLayerId: function () {
-    var baseLayerId;
-    this.eachLayer(function (layer) {
-      if (layer.options && layer.options.layerId) baseLayerId = layer.options.layerId;
-    });
-    return baseLayerId;
+    const layer = this.getMapBaseLayer();
+    if (layer) return layer.options.layerId;
+  },
+
+  getMapBaseLayer: function () {
+    for (const layer of this.baseLayers) {
+      if (this.hasLayer(layer)) return layer;
+    }
   },
 
   getUrl: function (marker) {

From 8a8c2517f2e594bcecba1fda751ffd34b39dbe9a Mon Sep 17 00:00:00 2001
From: Anton Khorev <tony29@yandex.ru>
Date: Wed, 18 Dec 2024 18:36:44 +0300
Subject: [PATCH 3/3] Add 'canEmbed' layer option

---
 app/assets/javascripts/leaflet.share.js | 3 ++-
 config/layers.yml                       | 5 +++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/app/assets/javascripts/leaflet.share.js b/app/assets/javascripts/leaflet.share.js
index f0d2781098..7b0b5ef028 100644
--- a/app/assets/javascripts/leaflet.share.js
+++ b/app/assets/javascripts/leaflet.share.js
@@ -337,7 +337,8 @@ L.OSM.share = function (options) {
     }
 
     function update() {
-      var canEmbed = map.getMapBaseLayerId() !== "tracestracktopo";
+      const layer = map.getMapBaseLayer();
+      var canEmbed = layer && layer.options.canEmbed;
       var bounds = map.getBounds();
 
       $("#link_marker")
diff --git a/config/layers.yml b/config/layers.yml
index 4f883cc940..6a470687a2 100644
--- a/config/layers.yml
+++ b/config/layers.yml
@@ -2,6 +2,7 @@
   code: "M"
   layerId: "mapnik"
   nameId: "standard"
+  canEmbed: true
   credit:
     id: "make_a_donation"
     href: "https://supporting.openstreetmap.org"
@@ -11,6 +12,7 @@
   code: "Y"
   layerId: "cyclosm"
   nameId: "cyclosm"
+  canEmbed: true
   credit:
     id: "cyclosm_credit"
     children:
@@ -26,6 +28,7 @@
   layerId: "cyclemap"
   nameId: "cycle_map"
   apiKeyId: "THUNDERFOREST_KEY"
+  canEmbed: true
   credit:
     id: "thunderforest_credit"
     children:
@@ -38,6 +41,7 @@
   layerId: "transportmap"
   nameId: "transport_map"
   apiKeyId: "THUNDERFOREST_KEY"
+  canEmbed: true
   credit:
     id: "thunderforest_credit"
     children:
@@ -61,6 +65,7 @@
   code: "H"
   layerId: "hot"
   nameId: "hot"
+  canEmbed: true
   credit:
     id: "hotosm_credit"
     children: