Add additional comparison for servers in lists.

Sort by class as well as by name. This change should help to show
computers first, then phones and then other devices.

Change-Id: I3a5dec6e5df33b766b70798ac1ad32a5d5db4a3f

android/sdremote/src/org/libreoffice/impressremote/communication/BluetoothServersFinder.java

@@ -15,6 +15,7 @@ import java.util.Map;
 import java.util.concurrent.TimeUnit;
 
 import android.bluetooth.BluetoothAdapter;
+import android.bluetooth.BluetoothClass;
 import android.bluetooth.BluetoothDevice;
 import android.content.BroadcastReceiver;
 import android.content.Context;
@@ -116,10 +117,26 @@ class BluetoothServersFinder extends BroadcastReceiver implements ServersFinder,
     }
 
     private Server buildServer(BluetoothDevice aBluetoothDevice) {
+        Server.Type aServerType = buildServerType(aBluetoothDevice);
         String aServerAddress = aBluetoothDevice.getAddress();
         String aServerName = aBluetoothDevice.getName();
 
-        return Server.newBluetoothInstance(aServerAddress, aServerName);
+        return Server.newBluetoothInstance(aServerType, aServerAddress, aServerName);
+    }
+
+    private Server.Type buildServerType(BluetoothDevice aBluetoothDevice) {
+        int aBluetoothClass = aBluetoothDevice.getBluetoothClass().getMajorDeviceClass();
+
+        switch (aBluetoothClass) {
+            case BluetoothClass.Device.Major.COMPUTER:
+                return Server.Type.COMPUTER;
+
+            case BluetoothClass.Device.Major.PHONE:
+                return Server.Type.PHONE;
+
+            default:
+                return Server.Type.UNDEFINED;
+        }
     }
 
     private void callUpdatingServersList() {

android/sdremote/src/org/libreoffice/impressremote/communication/Server.java

@@ -19,28 +19,38 @@ public class Server implements Parcelable {
         TCP, BLUETOOTH
     }
 
+    public static enum Type {
+        COMPUTER, PHONE, UNDEFINED
+    }
+
     private final Protocol mProtocol;
+    private final Type mType;
     private final String mAddress;
     private final String mName;
 
-    private Server(Protocol aProtocol, String aAddress, String aName) {
-        this.mProtocol = aProtocol;
-        this.mAddress = aAddress;
-        this.mName = aName;
+    private Server(Protocol aProtocol, Type aType, String aAddress, String aName) {
+        mProtocol = aProtocol;
+        mType = aType;
+        mAddress = aAddress;
+        mName = aName;
     }
 
     public static Server newTcpInstance(String aAddress, String aName) {
-        return new Server(Protocol.TCP, aAddress, aName);
+        return new Server(Protocol.TCP, Type.UNDEFINED, aAddress, aName);
     }
 
-    public static Server newBluetoothInstance(String aAddress, String aName) {
-        return new Server(Protocol.BLUETOOTH, aAddress, aName);
+    public static Server newBluetoothInstance(Type aClass, String aAddress, String aName) {
+        return new Server(Protocol.BLUETOOTH, aClass, aAddress, aName);
     }
 
     public Protocol getProtocol() {
         return mProtocol;
     }
 
+    public Type getType() {
+        return mType;
+    }
+
     public String getAddress() {
         return mAddress;
     }
@@ -64,9 +74,10 @@ public class Server implements Parcelable {
 
     @Override
     public void writeToParcel(Parcel aParcel, int aFlags) {
+        aParcel.writeString(mProtocol.name());
+        aParcel.writeString(mType.name());
         aParcel.writeString(mAddress);
         aParcel.writeString(mName);
-        aParcel.writeString(mProtocol.name());
     }
 
     public static final Parcelable.Creator<Server> CREATOR = new Parcelable.Creator<Server>() {
@@ -80,9 +91,10 @@ public class Server implements Parcelable {
     };
 
     private Server(Parcel aParcel) {
+        this.mProtocol = Protocol.valueOf(aParcel.readString());
+        this.mType = Type.valueOf(aParcel.readString());
         this.mAddress = aParcel.readString();
         this.mName = aParcel.readString();
-        this.mProtocol = Protocol.valueOf(aParcel.readString());
     }
 }
 

android/sdremote/src/org/libreoffice/impressremote/communication/ServersManager.java

@@ -22,6 +22,13 @@ import android.content.Context;
 import org.libreoffice.impressremote.util.Preferences;
 
 class ServersManager implements Comparator<Server> {
+    private static final class CompareResult {
+        private CompareResult() {
+        }
+
+        public static final int EQUAL = 0;
+    }
+
     private final ServersFinder mBluetoothServersFinder;
     private final ServersFinder mTcpServersFinder;
 
@@ -94,6 +101,25 @@ class ServersManager implements Comparator<Server> {
 
     @Override
     public int compare(Server aFirstServer, Server aSecondServer) {
+        int aServersTypesComparison = compareServersTypes(aFirstServer, aSecondServer);
+        int aServersNamesComparison = compareServersNames(aFirstServer, aSecondServer);
+
+        if (aServersTypesComparison != CompareResult.EQUAL) {
+            return aServersTypesComparison;
+        }
+        else {
+            return aServersNamesComparison;
+        }
+    }
+
+    private int compareServersTypes(Server aFirstServer, Server aSecondServer) {
+        Server.Type aFirstServerType = aFirstServer.getType();
+        Server.Type aSecondServerType = aSecondServer.getType();
+
+        return aFirstServerType.compareTo(aSecondServerType);
+    }
+
+    private int compareServersNames(Server aFirstServer, Server aSecondServer) {
         String aFirstServerName = aFirstServer.getName();
         String aSecondServerName = aSecondServer.getName();