show location nav as selectable nav in search page layout

- switch automatically on upon load of geodata provider
- but allow switch on also without geodata file (and display the location nav if search result has lat/lon location)

htroot/ConfigSearchPage_p.html

@@ -96,6 +96,12 @@
                           </div>
                         </td>
                       </tr>
+                      <tr>
+                          <td><input type="checkbox" name="search.navigation.location" value="true" #(search.navigation.location)#::checked="checked" #(/search.navigation.location)# /></td>
+                          <td><ul class="nav nav-sidebar menugroup" id="sidebarLocation" style="padding-left:15px; padding-right:10px;">
+                                <li><h3>Location</h3></li>
+                          </ul></td>
+                      </tr>                          
                       <tr>
                         <td><input type="checkbox" name="search.navigation.protocol" value="true" #(search.navigation.protocol)#::checked="checked" #(/search.navigation.protocol)# /></td>
                         <td><ul class="nav nav-sidebar menugroup" id="sidebarProtocols" style="padding-left:15px; padding-right:10px;">

htroot/ConfigSearchPage_p.java

@@ -35,6 +35,7 @@ import net.yacy.cora.date.GenericFormatter;
 import net.yacy.cora.protocol.RequestHeader;
 import net.yacy.cora.util.ConcurrentLog;
 import net.yacy.data.WorkTables;
+import net.yacy.document.LibraryProvider;
 import net.yacy.search.Switchboard;
 import net.yacy.search.SwitchboardConstants;
 import net.yacy.server.serverObjects;
@@ -80,6 +81,7 @@ public class ConfigSearchPage_p {
 
                 // construct navigation String
                 String nav = "";
+                if (post.getBoolean("search.navigation.location")) nav += "location,";
                 if (post.getBoolean("search.navigation.filetype")) nav += "filetype,";
                 if (post.getBoolean("search.navigation.protocol")) nav += "protocol,";
                 if (post.getBoolean("search.navigation.hosts")) nav += "hosts,";
@@ -159,6 +161,7 @@ public class ConfigSearchPage_p {
         prop.put("search.result.show.proxy", sb.getConfigBool("search.result.show.proxy", false) ? 1 : 0);
         prop.put("search.result.show.hostbrowser", sb.getConfigBool("search.result.show.hostbrowser", false) ? 1 : 0);
 
+        prop.put("search.navigation.location", sb.getConfig("search.navigation", "").indexOf("location",0) >= 0 ? 1 : 0);
         prop.put("search.navigation.filetype", sb.getConfig("search.navigation", "").indexOf("filetype",0) >= 0 ? 1 : 0);
         prop.put("search.navigation.protocol", sb.getConfig("search.navigation", "").indexOf("protocol",0) >= 0 ? 1 : 0);
         prop.put("search.navigation.hosts", sb.getConfig("search.navigation", "").indexOf("hosts",0) >= 0 ? 1 : 0);

htroot/DictionaryLoader_p.java

@@ -76,6 +76,8 @@ public class DictionaryLoader_p {
                 LibraryProvider.autotagging.addPlaces(LibraryProvider.geoLoc);
                 prop.put("geon0Status", LibraryProvider.Dictionary.GEON0.file().exists() ? 1 : 0);
                 prop.put("geon0ActionLoaded", 1);
+                final String nav = sb.getConfig("search.navigation", "");
+                if (nav.indexOf("location") < 0) sb.setConfig("search.navigation", "location,"+nav);
             } catch (final MalformedURLException e) {
                 ConcurrentLog.logException(e);
                 prop.put("geon0ActionLoaded", 2);
@@ -118,6 +120,8 @@ public class DictionaryLoader_p {
                 LibraryProvider.autotagging.addPlaces(LibraryProvider.geoLoc);
                 prop.put("geon1Status", LibraryProvider.Dictionary.GEON1.file().exists() ? 1 : 0);
                 prop.put("geon1ActionLoaded", 1);
+                final String nav = sb.getConfig("search.navigation", "");
+                if (nav.indexOf("location") < 0) sb.setConfig("search.navigation", "location,"+nav);
             } catch (final MalformedURLException e) {
                 ConcurrentLog.logException(e);
                 prop.put("geon1ActionLoaded", 2);
@@ -160,6 +164,8 @@ public class DictionaryLoader_p {
                 LibraryProvider.autotagging.addPlaces(LibraryProvider.geoLoc);
                 prop.put("geon2Status", LibraryProvider.Dictionary.GEON2.file().exists() ? 1 : 0);
                 prop.put("geon2ActionLoaded", 1);
+                final String nav = sb.getConfig("search.navigation", "");
+                if (nav.indexOf("location") < 0) sb.setConfig("search.navigation", "location,"+nav);
             } catch (final MalformedURLException e) {
                 ConcurrentLog.logException(e);
                 prop.put("geon2ActionLoaded", 2);
@@ -203,6 +209,8 @@ public class DictionaryLoader_p {
                 LibraryProvider.autotagging.addPlaces(LibraryProvider.geoLoc);
                 prop.put("geo1Status", LibraryProvider.Dictionary.GEODB1.file().exists() ? 1 : 0);
                 prop.put("geo1ActionLoaded", 1);
+                final String nav = sb.getConfig("search.navigation", "");
+                if (nav.indexOf("location") < 0) sb.setConfig("search.navigation", "location,"+nav);
             } catch (final MalformedURLException e) {
                 ConcurrentLog.logException(e);
                 prop.put("geo1ActionLoaded", 2);

htroot/yacysearchtrailer.java

@@ -530,9 +530,9 @@ public class yacysearchtrailer {
         }
 
         // category: location search
-        // show only if there is a location database present and if there had been any search results
-        if ((LibraryProvider.geoLoc.isEmpty() || theSearch.getResultCount() == 0) &&
-            (theSearch.locationNavigator == null || theSearch.locationNavigator.isEmpty())) {
+        // show only if active and there is a location database present or if there had been any search results (with lat/lon)
+        if (theSearch.locationNavigator == null
+                || ((LibraryProvider.geoLoc.isEmpty() || theSearch.getResultCount() == 0) && theSearch.locationNavigator.isEmpty())) {
             prop.put("cat-location", 0);
         } else {
             prop.put("cat-location", 1);