rTorrent adapter should return the labels that it encountered during torrents retrieval.

core/src/org/transdroid/core/gui/TorrentsActivity.java

@@ -109,8 +109,10 @@ public class TorrentsActivity extends SherlockFragmentActivity implements OnNavi
 		navigationSpinnerAdapter = FilterListDropDownAdapter_.getInstance_(this).setNavigationFilterManager(this);
 		// Servers are always added to the action bar spinner
 		navigationSpinnerAdapter.updateServers(applicationSettings.getServerSettings());
+
+		// Check if there was room for a dedicated filter list (i.e. on tablets)
 		if (filtersList != null) {
-			// There was room for a dedicated filter list; create adapter and add the status types
+			// Create dedicated side list adapter and add the status types
 			navigationListAdapter = FilterListAdapter_.getInstance_(this);
 			navigationListAdapter.updateStatusTypes(StatusType.getAllStatusTypes(this));
 			// Add an empty labels list (which will be updated later, but the adapter needs to be created now)

core/src/org/transdroid/core/gui/navigation/FilterListAdapter.java

@@ -10,6 +10,7 @@ import org.transdroid.core.gui.lists.SimpleListItemAdapter;
 import org.transdroid.core.gui.navigation.NavigationSelectionView.NavigationFilterManager;
 
 import android.content.Context;
+import android.view.View;
 
 import com.commonsware.cwac.merge.MergeAdapter;
 
@@ -27,6 +28,9 @@ public class FilterListAdapter extends MergeAdapter {
 	private SimpleListItemAdapter statusTypeItems = null;
 	private SimpleListItemAdapter labelItems = null;
 	protected NavigationFilterManager navigationFilterManager;
+	private FilterSeparatorView statusTypeSeparator;
+	private FilterSeparatorView labelSeperator;
+	private FilterSeparatorView serverSeparator;
 
 	/**
 	 * Stores which screen, or manager, handles navigation selection and display
@@ -44,12 +48,16 @@ public class FilterListAdapter extends MergeAdapter {
 	 */
 	public void updateServers(List<? extends SimpleListItem> servers) {
 		if (this.serverItems == null && servers != null) {
-			addView(FilterSeparatorView_.build(context).setText(context.getString(R.string.navigation_servers)), false);
+			serverSeparator = FilterSeparatorView_.build(context).setText(context.getString(R.string.navigation_servers));
+			serverSeparator.setVisibility(serverItems.isEmpty()? View.GONE: View.VISIBLE);
+			addView(serverSeparator, false);
 			this.serverItems = new SimpleListItemAdapter(context, servers);
 			addAdapter(serverItems);
 		} else if (this.serverItems != null && servers != null) {
+			serverSeparator.setVisibility(serverItems.isEmpty()? View.GONE: View.VISIBLE);
 			this.serverItems.update(servers);
 		} else {
+			serverSeparator.setVisibility(View.GONE);
 			this.serverItems = null;
 		}
 	}
@@ -60,12 +68,17 @@ public class FilterListAdapter extends MergeAdapter {
 	 */
 	public void updateStatusTypes(List<? extends SimpleListItem> statusTypes) {
 		if (this.statusTypeItems == null && statusTypes != null) {
-			addView(FilterSeparatorView_.build(context).setText(context.getString(R.string.navigation_status)), false);
+			statusTypeSeparator = FilterSeparatorView_.build(context).setText(
+					context.getString(R.string.navigation_status));
+			statusTypeSeparator.setVisibility(statusTypeItems.isEmpty()? View.GONE: View.VISIBLE);
+			addView(statusTypeSeparator, false);
 			this.statusTypeItems = new SimpleListItemAdapter(context, statusTypes);
 			addAdapter(statusTypeItems);
 		} else if (this.statusTypeItems != null && statusTypes != null) {
+			statusTypeSeparator.setVisibility(statusTypeItems.isEmpty()? View.GONE: View.VISIBLE);
 			this.statusTypeItems.update(statusTypes);
 		} else {
+			statusTypeSeparator.setVisibility(View.GONE);
 			this.statusTypeItems = null;
 		}
 	}
@@ -76,12 +89,16 @@ public class FilterListAdapter extends MergeAdapter {
 	 */
 	public void updateLabels(List<? extends SimpleListItem> labels) {
 		if (this.labelItems == null && labels != null) {
-			addView(FilterSeparatorView_.build(context).setText(context.getString(R.string.navigation_labels)), false);
+			labelSeperator = FilterSeparatorView_.build(context).setText(context.getString(R.string.navigation_labels));
+			labelSeperator.setVisibility(labelItems.isEmpty()? View.GONE: View.VISIBLE);
+			addView(labelSeperator, false);
 			this.labelItems = new SimpleListItemAdapter(context, labels);
 			addAdapter(labelItems);
 		} else if (this.serverItems != null && labels != null) {
+			labelSeperator.setVisibility(labelItems.isEmpty()? View.GONE: View.VISIBLE);
 			this.labelItems.update(labels);
 		} else {
+			labelSeperator.setVisibility(View.GONE);
 			this.labelItems = null;
 		}
 	}

core/src/org/transdroid/core/gui/navigation/Label.java

@@ -1,5 +1,8 @@
 package org.transdroid.core.gui.navigation;
 
+import java.util.ArrayList;
+import java.util.List;
+
 import org.transdroid.core.gui.lists.SimpleListItem;
 import org.transdroid.daemon.Torrent;
 
@@ -10,7 +13,7 @@ import android.os.Parcelable;
  * Represents some label that is active or available on the server.
  * @author Eric Kok
  */
-public class Label implements SimpleListItem, NavigationFilter {
+public class Label extends org.transdroid.daemon.Label implements SimpleListItem, NavigationFilter {
 
 	private final String name;
 
@@ -28,6 +31,16 @@ public class Label implements SimpleListItem, NavigationFilter {
 		return torrent.getLabelName() != null && torrent.getLabelName().equals(name);
 	}
 	
+	public static List<Label> convertToNavigationLabels(List<org.transdroid.daemon.Label> daemonLabels) {
+		if (daemonLabels == null)
+			return null;
+		List<Label> localLabels = new ArrayList<Label>();
+		for (org.transdroid.daemon.Label label : daemonLabels) {
+			localLabels.add(new Label(label.getName()));
+		}
+		return localLabels;
+	}
+	
 	private Label(Parcel in) {
 		this.name = in.readString();
 	}

lib/src/org/transdroid/daemon/Rtorrent/RtorrentAdapter.java

@@ -27,13 +27,17 @@ import java.net.URI;
 import java.net.URLDecoder;
 import java.util.ArrayList;
 import java.util.Date;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
 
 import org.base64.android.Base64;
 import org.transdroid.daemon.Daemon;
 import org.transdroid.daemon.DaemonException;
 import org.transdroid.daemon.DaemonSettings;
 import org.transdroid.daemon.IDaemonAdapter;
+import org.transdroid.daemon.Label;
 import org.transdroid.daemon.Priority;
 import org.transdroid.daemon.Torrent;
 import org.transdroid.daemon.TorrentDetails;
@@ -77,6 +81,7 @@ public class RtorrentAdapter implements IDaemonAdapter {
 
 	private DaemonSettings settings;
 	private XMLRPCClient rpcclient;
+	private List<Label> lastKnownLabels = null;
 
 	public RtorrentAdapter(DaemonSettings settings) {
 		this.settings = settings;
@@ -90,7 +95,7 @@ public class RtorrentAdapter implements IDaemonAdapter {
 			case Retrieve:
 
 				Object result = makeRtorrentCall("d.multicall", new String[] { "main", "d.get_hash=", "d.get_name=", "d.get_state=", "d.get_down_rate=", "d.get_up_rate=", "d.get_peers_connected=", "d.get_peers_not_connected=", "d.get_peers_accounted=", "d.get_bytes_done=", "d.get_up_total=", "d.get_size_bytes=", "d.get_creation_date=", "d.get_left_bytes=", "d.get_complete=", "d.is_active=", "d.is_hash_checking=", "d.get_base_path=", "d.get_base_filename=", "d.get_message=", "d.get_custom=addtime", "d.get_custom=seedingtime", "d.get_custom1=" });
-				return new RetrieveTaskSuccessResult((RetrieveTask) task, onTorrentsRetrieved(result),null);
+				return new RetrieveTaskSuccessResult((RetrieveTask) task, onTorrentsRetrieved(result), lastKnownLabels);
 
 			case GetTorrentDetails:
 
@@ -277,10 +282,8 @@ public class RtorrentAdapter implements IDaemonAdapter {
 						
 			// Parse torrent list from response
 			// Formatted as Object[][], see http://libtorrent.rakshasa.no/wiki/RTorrentCommands#Download
-			// 'Labels' are supported in rTorrent as 'groups' that can become the 'active view';
-			// support for this is not trivial since it requires multiple calls to get all the info at best
-			// (if it is even feasible with the current approach)
 			List<Torrent> torrents = new ArrayList<Torrent>();
+			Map<String, Integer> labels = new HashMap<String, Integer>();
 			Object[] responseList = (Object[]) response;
 			for (int i = 0; i < responseList.length; i++) {
 				
@@ -323,7 +326,13 @@ public class RtorrentAdapter implements IDaemonAdapter {
 				String label = null;
 				try {
 					label = URLDecoder.decode((String)info[21], "UTF-8");
+					if (labels.containsKey(label)) {
+						labels.put(label, labels.get(label) + 1);
+					} else {
+						labels.put(label, 0);
+					}
 				} catch (UnsupportedEncodingException e) {		
+					// Can't decode label name; ignore it
 				}
 				
 				if (info[3] instanceof Long) {
@@ -388,6 +397,11 @@ public class RtorrentAdapter implements IDaemonAdapter {
 					
 				}
 			}
+			lastKnownLabels = new ArrayList<Label>();
+			for (Entry<String, Integer> pair : labels.entrySet()) {
+				if (pair.getKey() != null)
+					lastKnownLabels.add(new Label(pair.getKey(), pair.getValue()));
+			}
 			return torrents;
 			
 		}