Add button for directions from location

Author: hlfan

app/assets/javascripts/index/directions.js

@@ -71,6 +71,31 @@ OSM.Directions = function (map) {
     }));
   });
 
+  $(".directions_form .locate").on("click", function () {
+    if ($(".directions_form .locate").hasClass("disabled")) return;
+    if (!navigator.geolocation) {
+      $(".directions_form .locate").addClass("disabled");
+      return;
+    }
+    navigator.geolocation.getCurrentPosition(geoSuccess);
+
+    function geoSuccess(position) {
+      const location = L.latLng(position.coords.latitude, position.coords.longitude),
+            [coordFrom, coordTo] = endpoints.map(ll => ll.latlng);
+      let routeTo;
+      if (coordTo) {
+        routeTo = coordTo.lat + "," + coordTo.lng;
+      } else if (coordFrom) {
+        routeTo = coordFrom.lat + "," + coordFrom.lng;
+        endpoints[0].swapCachedReverseGeocodes(endpoints[1]);
+      }
+      const routeFrom = location.lat + "," + location.lng;
+      OSM.router.route("/directions?" + new URLSearchParams({
+        route: routeFrom + ";" + routeTo
+      }));
+    }
+  });
+
   $(".directions_form .btn-close").on("click", function (e) {
     e.preventDefault();
     $(".describe_location").toggle(!endpoints[0].value);

app/assets/stylesheets/common.scss

@@ -581,6 +581,15 @@ header .search_forms,
   }
 }
 
+.search_forms {
+  .geolocate {
+    transition: filter 0.15s ease-in-out;
+  }
+  .btn:not(:hover) .geolocate {
+    filter: brightness(53%);
+  }
+}
+
 /* Rules for search sidebar */
 
 #sidebar .search_results_entry {

app/views/layouts/_search.html.erb

@@ -40,29 +40,26 @@
     <div class="d-flex flex-row-reverse px-3 pt-3 pb-1"><button type="button" class="btn-close" aria-label="<%= t("javascripts.close") %>"></button></div>
 
     <div class="d-flex flex-column mx-2 gap-1">
-      <div class="d-flex gap-1 align-items-center">
-        <div class="d-flex flex-column gap-1 flex-grow-1">
-          <div class="d-flex gap-2 align-items-center">
-            <div class="routing_marker_column flex-shrink-0">
-              <%= image_tag "marker-green.png", :class => "img-fluid", :data => { :type => "from" }, :draggable => "true" %>
-            </div>
-            <%= text_field_tag "route_from", params[:from], :placeholder => t("site.search.from"), :autocomplete => "on", :class => "form-control py-1 px-2", :dir => "auto" %>
-          </div>
-          <div class="d-flex gap-2 align-items-center">
-            <div class="routing_marker_column flex-shrink-0">
-              <%= image_tag "marker-red.png", :class => "img-fluid", :data => { :type => "to" }, :draggable => "true" %>
-            </div>
-            <%= text_field_tag "route_to", params[:to], :placeholder => t("site.search.to"), :autocomplete => "on", :class => "form-control py-1 px-2", :dir => "auto" %>
-          </div>
+      <div class="d-flex gap-2 align-items-center">
+        <div class="routing_marker_column flex-shrink-0">
+          <%= image_tag "marker-green.png", :class => "img-fluid", :data => { :type => "from" }, :draggable => "true" %>
         </div>
-        <div>
-          <button type="button" class="reverse_directions btn btn-outline-secondary border-0 p-2" title="<%= t("site.search.reverse_directions_text") %>">
-            <svg class="d-block" width="20" height="20" viewBox="-10 -10 20 20" fill="none" stroke="currentColor" stroke-width="2">
-              <path d="m-4 -2 0 10 m-4 -4 4 4 4 -4" />
-              <path d="m4 2 0 -10 m4 4 -4 -4 -4 4" />
-            </svg>
-          </button>
+        <%= text_field_tag "route_from", params[:from], :placeholder => t("site.search.from"), :autocomplete => "on", :class => "form-control py-1 px-2", :dir => "auto" %>
+        <button type="button" class="locate border-0 btn btn-outline-secondary p-2">
+          <span class="d-block geolocate icon"></span>
+        </button>
+      </div>
+      <div class="d-flex gap-2 align-items-center">
+        <div class="routing_marker_column flex-shrink-0">
+          <%= image_tag "marker-red.png", :class => "img-fluid", :data => { :type => "to" }, :draggable => "true" %>
         </div>
+        <%= text_field_tag "route_to", params[:to], :placeholder => t("site.search.to"), :autocomplete => "on", :class => "form-control py-1 px-2", :dir => "auto" %>
+        <button type="button" class="reverse_directions btn btn-outline-secondary border-0 p-2" title="<%= t("site.search.reverse_directions_text") %>">
+          <svg class="d-block" width="20" height="20" viewBox="-10 -10 20 20" fill="none" stroke="currentColor" stroke-width="2">
+            <path d="m-4 -2 0 10 m-4 -4 4 4 4 -4" />
+            <path d="m4 2 0 -10 m4 4 -4 -4 -4 4" />
+          </svg>
+        </button>
       </div>
       <div class="d-flex gap-2 align-items-center">
         <div class="routing_marker_column flex-shrink-0"></div>