From 44f6f286ca41bf833a2829abf9c01fda6f4ad721 Mon Sep 17 00:00:00 2001
From: Anton Khorev <tony29@yandex.ru>
Date: Mon, 12 May 2025 12:10:11 +0300
Subject: [PATCH] Add links to external map legends

---
 app/views/map_keys/show.html.erb | 7 +++++++
 config/key.yml                   | 3 +++
 config/locales/en.yml            | 1 +
 3 files changed, 11 insertions(+)

diff --git a/app/views/map_keys/show.html.erb b/app/views/map_keys/show.html.erb
index 76d4be2fc..00a8ef72c 100644
--- a/app/views/map_keys/show.html.erb
+++ b/app/views/map_keys/show.html.erb
@@ -17,4 +17,11 @@
       <% end %>
     <% end %>
   </table>
+  <% @key.each do |layer_name, layer_data| %>
+    <% if layer_data["legend"] %>
+      <%= tag.div :data => { :layer => layer_name }, :class => "mt-3 text-center" do %>
+        <%= link_to t(".see_external_legend"), layer_data["legend"], :target => "_blank", :rel => "noopener" %>
+      <% end %>
+    <% end %>
+  <% end %>
 </div>
diff --git a/config/key.yml b/config/key.yml
index 2fac4649c..7d6322bdf 100644
--- a/config/key.yml
+++ b/config/key.yml
@@ -1,4 +1,5 @@
 mapnik:
+  legend: https://wiki.openstreetmap.org/wiki/OpenStreetMap_Carto/Symbols
   entries:
     # transportation: roads.mss
     - { min_zoom:  6, name: motorway, width: 52, height:  1, line: "#e66e89", line-width: 1 }
@@ -106,6 +107,7 @@ mapnik:
     - { min_zoom: 15, name: destination, image: destination.png }
     - { min_zoom: 12, name: construction, image: construction.png }
 cyclosm:
+  legend: https://www.cyclosm.org/legend.html
   entries:
     # bicycle routes: roads.mss, road-colors.mss
     - { min_zoom:  2, name: international_bike_route, width: 50, height:  1, fill: "#ff00ff", opacity: 0.75 }
@@ -145,6 +147,7 @@ cyclosm:
     - { min_zoom: 17, name: local_bike_route,         width: 50, height: 10, fill: "#0000ff", opacity: 0.25 }
     - { min_zoom: 18, name: local_bike_route,         width: 50, height: 14, fill: "#0000ff", opacity: 0.25 }
 cyclemap:
+  legend: https://www.opencyclemap.org/docs/
   entries:
     - { min_zoom:  5, name: motorway, width: 50, height: 2, fill: "#9a9ab1" }
     - { min_zoom:  9, name: motorway, width: 50, height: 3, fill: "#9a9ab1" }
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 19794a770..d0cca87e8 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -2642,6 +2642,7 @@ en:
         bicycle_parking: "Bicycle parking"
         bicycle_parking_small: "Small bicycle parking"
         toilets: "Toilets"
+      see_external_legend: "See external map legend"
   traces:
     visibility:
       private: "Private (only shared as anonymous, unordered points)"
-- 
2.39.5