add link to map on projects which have a location

src/views/ProjectViewView.vue

@@ -39,6 +39,16 @@
                 <fa icon="calendar" class="fa-fw text-slate-400"></fa>
                 {{ timeSince }}
               </div>
+              <div v-if="latitude || longitude">
+                <fa icon="location-dot" class="fa-fw text-slate-400"></fa>
+                <a
+                  :href="getOpenStreetMapUrl()"
+                  target="_blank"
+                  class="underline"
+                >
+                  Map View
+                </a>
+              </div>
             </div>
           </div>
         </div>
@@ -231,6 +241,8 @@ export default class ProjectViewView extends Vue {
   expanded = false;
   givesToThis: Array<GiveServerRecord> = [];
   givesByThis: Array<GiveServerRecord> = [];
+  latitude = 0;
+  longitude = 0;
   name = "";
   issuer = "";
   projectId = localStorage.getItem("projectId") || ""; // handle ID
@@ -326,6 +338,8 @@ export default class ProjectViewView extends Vue {
         this.name = resp.data.claim?.name || "(no name)";
         this.description = resp.data.claim?.description || "(no description)";
         this.truncatedDesc = this.description.slice(0, this.truncateLength);
+        this.latitude = resp.data.claim?.location?.geo?.latitude || 0;
+        this.longitude = resp.data.claim?.location?.geo?.longitude || 0;
       } else if (resp.status === 404) {
         // actually, axios throws an error so we never get here
         this.$notify(
@@ -441,6 +455,20 @@ export default class ProjectViewView extends Vue {
     this.$refs.customDialog.open(contact);
   }
 
+  getOpenStreetMapUrl() {
+    // Google URL is https://maps.google.com/?q=LAT,LONG
+    return (
+      "https://www.openstreetmap.org/?mlat=" +
+      this.latitude +
+      "&mlon=" +
+      this.longitude +
+      "#map=15/" +
+      this.latitude +
+      "/" +
+      this.longitude
+    );
+  }
+
   handleDialogResult(result) {
     if (result.action === "confirm") {
       return new Promise((resolve) => {