Add friendlist subscription

res/layout/contact_cell.xml

@@ -95,6 +95,19 @@
 	        android:scaleType="centerInside"
 	        android:src="@drawable/led_connected" />
 
+		<ImageView
+			android:id="@+id/friendLinphone"
+			android:visibility="gone"
+			android:layout_width="20dp"
+			android:layout_height="20dp"
+			android:layout_alignParentRight="true"
+			android:layout_centerVertical="true"
+			android:adjustViewBounds="true"
+			android:layout_marginRight="20dp"
+			android:scaleType="centerInside"
+			android:src="@drawable/linphone_user" />
+
+
 	</RelativeLayout>
     
 </LinearLayout>

res/raw/linphonerc_default

@@ -7,6 +7,8 @@ contact="Linphone Android" <sip:linphone.android@unknown-host>
 use_info=0
 use_ipv6=0
 keepalive_period=30000
+rls_uri=sip:rls@sip1.linphone.org
+use_rls_presence=1
 
 [video]
 size=qvga

res/values/non_localizable_strings.xml

@@ -71,6 +71,7 @@
 	<string name="pref_bandwidth_limit_key">pref_bandwidth_limit_key</string>
     <string name="pref_animation_enable_key">pref_animation_enable_key</string>
     <string name="pref_escape_plus_key">pref_escape_plus_key</string>
+    <string name="pref_friendlist_subscribe_key">pref_friendlist_subscribe_key</string>
     <string name="pref_echo_cancellation_key">pref_echo_cancellation_key</string>
     <string name="pref_autostart_key">pref_autostart_key</string>
     <string name="pref_enable_outbound_proxy_key">Outbound proxy</string>

res/values/strings.xml

@@ -204,6 +204,7 @@
 	<string name="pref_avpf">AVPF</string>
 	<string name="pref_avpf_rr_interval"> AVPF regular RTCP interval in seconds (between 1 and 5)</string>
 	<string name="pref_escape_plus">Replace + by 00</string>
+	<string name="pref_friendlist_subscribe">Friendlist subscribe</string>
 	<string name="pref_auth_userid">Auth userid</string>
 	<string name="pref_help_auth_userid">Enter authentication userid (optional)</string>
 	<string name="pref_display_name">Display name</string>

res/xml/account_preferences.xml

@@ -72,6 +72,10 @@
 		<CheckBoxPreference 
 			android:title="@string/pref_escape_plus"
 		    android:key="@string/pref_escape_plus_key"/>
+
+		<CheckBoxPreference
+			android:title="@string/pref_friendlist_subscribe"
+			android:key="@string/pref_friendlist_subscribe_key"/>
         
     </PreferenceCategory>
     

src/org/linphone/AccountPreferencesFragment.java

@@ -176,7 +176,7 @@ public class AccountPreferencesFragment extends PreferencesListFragment {
 			}
 			preference.setSummary(newValue.toString());
 			return true;
-		}		
+		}
 	};
 	OnPreferenceChangeListener prefixChangedListener = new OnPreferenceChangeListener() {
 		@Override
@@ -234,6 +234,14 @@ public class AccountPreferencesFragment extends PreferencesListFragment {
 			return true;
 		}
 	};
+	OnPreferenceChangeListener friendlistSubscribeListener = new OnPreferenceChangeListener() {
+		@Override
+		public boolean onPreferenceChange(Preference preference, Object newValue) {
+			boolean value = (Boolean) newValue;
+			LinphoneManager.getInstance().subscribeFriendList(value);
+			return true;
+		}
+	};
 	OnPreferenceChangeListener disableChangedListener = new OnPreferenceChangeListener() {
 		@Override
 		public boolean onPreferenceChange(Preference preference, Object newValue) {
@@ -365,6 +373,12 @@ public class AccountPreferencesFragment extends PreferencesListFragment {
 		if(!isNewAccount){
 			escape.setChecked(mPrefs.getReplacePlusByZeroZero(n));
 		}
+
+		CheckBoxPreference friendlistSubscribe = (CheckBoxPreference) advanced.getPreference(8);
+		friendlistSubscribe.setOnPreferenceChangeListener(friendlistSubscribeListener);
+		if(!isNewAccount){
+			escape.setChecked(mPrefs.getReplacePlusByZeroZero(n));
+		}
     	
     	PreferenceCategory manage = (PreferenceCategory) getPreferenceScreen().findPreference(getString(R.string.pref_manage_key));
     	final CheckBoxPreference disable = (CheckBoxPreference) manage.getPreference(0);

src/org/linphone/ContactsListFragment.java

@@ -459,6 +459,7 @@ public class ContactsListFragment extends Fragment implements OnClickListener, O
 			}
 
 			CheckBox delete = (CheckBox) view.findViewById(R.id.delete);
+			ImageView linphoneFriend = (ImageView) view.findViewById(R.id.friendLinphone);
 			
 			TextView name = (TextView) view.findViewById(R.id.name);
 			name.setText(contact.getFullName());
@@ -474,7 +475,13 @@ public class ContactsListFragment extends Fragment implements OnClickListener, O
 					separatorText.setText(String.valueOf(fullName.charAt(0)));
 				}
 			}
-			
+
+			if(contact.isInLinphoneFriendList()){
+				linphoneFriend.setVisibility(View.VISIBLE);
+			} else {
+				linphoneFriend.setVisibility(View.GONE);
+			}
+
 			ImageView icon = (ImageView) view.findViewById(R.id.contact_picture);
 			if (contact.hasPhoto()) {
 				LinphoneUtils.setImagePictureFromUri(getActivity(), icon, contact.getPhotoUri(), contact.getThumbnailUri());

src/org/linphone/LinphoneActivity.java

@@ -50,13 +50,16 @@ import org.linphone.ui.AddressText;
 import android.Manifest;
 import android.annotation.SuppressLint;
 import android.app.Activity;
+import android.app.ActivityManager;
 import android.app.Dialog;
 import android.app.Fragment;
 import android.app.FragmentManager;
 import android.app.FragmentTransaction;
+import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.ActivityInfo;
+import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.graphics.Bitmap;
 import android.graphics.drawable.ColorDrawable;
@@ -1122,6 +1125,9 @@ public class LinphoneActivity extends Activity implements OnClickListener, Conta
 	protected void onPause() {
 		getIntent().putExtra("PreviousActivity", 0);
 
+		if(LinphonePreferences.instance().isFriendlistsubscriptionEnabled()){
+			LinphoneManager.getInstance().subscribeFriendList(!isApplicationBroughtToBackground(this));
+		}
 		LinphoneCore lc = LinphoneManager.getLcIfManagerNotDestroyedOrNull();
 		if (lc != null) {
 			lc.removeListener(mListener);
@@ -1129,7 +1135,28 @@ public class LinphoneActivity extends Activity implements OnClickListener, Conta
 		
 		super.onPause();
 	}
-	
+
+	public static boolean isApplicationBroughtToBackground(final Activity activity) {
+		ActivityManager activityManager = (ActivityManager) activity.getSystemService(Context.ACTIVITY_SERVICE);
+		List<ActivityManager.RunningTaskInfo> tasks = activityManager.getRunningTasks(1);
+
+		// Check the top Activity against the list of Activities contained in the Application's package.
+		if (!tasks.isEmpty()) {
+			ComponentName topActivity = tasks.get(0).topActivity;
+			try {
+				PackageInfo pi = activity.getPackageManager().getPackageInfo(activity.getPackageName(), PackageManager.GET_ACTIVITIES);
+				for (ActivityInfo activityInfo : pi.activities) {
+					if(topActivity.getClassName().equals(activityInfo.name)) {
+						return false;
+					}
+				}
+			} catch( PackageManager.NameNotFoundException e) {
+				return false; // Never happens.
+			}
+		}
+		return true;
+	}
+
 	public void checkAndRequestExternalStoragePermission() {
 		if (LinphonePreferences.instance().writeExternalStoragePermAsked()) {
 			return;
@@ -1171,7 +1198,7 @@ public class LinphoneActivity extends Activity implements OnClickListener, Conta
 
 	public void checkAndRequestPermission(String permission, int result) {
 		if (getPackageManager().checkPermission(permission, getPackageName()) != PackageManager.PERMISSION_GRANTED) {
-			ActivityCompat.requestPermissions(this, new String[]{ permission }, result);
+			ActivityCompat.requestPermissions(this, new String[]{permission}, result);
 		}
 	}
 
@@ -1244,6 +1271,9 @@ public class LinphoneActivity extends Activity implements OnClickListener, Conta
 		refreshAccounts();
 
 		updateMissedChatCount();
+		if(LinphonePreferences.instance().isFriendlistsubscriptionEnabled()){
+			LinphoneManager.getInstance().subscribeFriendList(true);
+		}
 
 		displayMissedCalls(LinphoneManager.getLc().getMissedCallsCount());
 

src/org/linphone/LinphoneContact.java

@@ -29,6 +29,7 @@ import org.linphone.core.LinphoneCoreException;
 import org.linphone.core.LinphoneCoreFactory;
 import org.linphone.core.LinphoneFriend;
 import org.linphone.core.LinphoneFriend.SubscribePolicy;
+import org.linphone.core.PresenceBasicStatus;
 import org.linphone.mediastream.Log;
 
 import android.content.ContentProviderOperation;
@@ -446,6 +447,10 @@ public class LinphoneContact implements Serializable, Comparable<LinphoneContact
 		return friend != null;
 	}
 
+	public boolean isInLinphoneFriendList() {
+		return (friend != null && friend.getPresenceModel() != null &&  friend.getPresenceModel().getBasicStatus().equals(PresenceBasicStatus.Open));
+	}
+
 	public void setFriend(LinphoneFriend f) {
 		friend = f;
 	}

src/org/linphone/LinphoneManager.java

@@ -221,7 +221,7 @@ public class LinphoneManager implements LinphoneCoreListener, LinphoneChatMessag
 		userAgent.append("LinphoneAndroid/" + mServiceContext.getPackageManager().getPackageInfo(mServiceContext.getPackageName(),0).versionCode);
 		userAgent.append(" (");
 		userAgent.append("Linphone/" + LinphoneManager.getLc().getVersion() + "; ");
-		userAgent.append(Build.DEVICE + " " + Build.MODEL +  " Android/" + Build.VERSION.SDK_INT);
+		userAgent.append(Build.DEVICE + " " + Build.MODEL + " Android/" + Build.VERSION.SDK_INT);
 		userAgent.append(")");
 		return userAgent.toString();
 	}
@@ -379,6 +379,15 @@ public class LinphoneManager implements LinphoneCoreListener, LinphoneChatMessag
 		}
 	}
 
+	public void subscribeFriendList(boolean enabled){
+		LinphoneCore lc = getLcIfManagerNotDestroyedOrNull();
+		if(lc != null ) {
+			LinphoneFriendList mFriendList = (lc.getFriendLists())[0];
+			mFriendList.enableSubscriptions(enabled);
+		}
+	}
+
+
 	public static synchronized final LinphoneManager getInstance() {
 		if (instance != null) return instance;
 
@@ -667,6 +676,7 @@ public class LinphoneManager implements LinphoneCoreListener, LinphoneChatMessag
 		mLc.setCallLogsDatabasePath(mCallLogDatabaseFile);
 		mLc.setFriendsDatabasePath(mFriendsDatabaseFile);
 		mLc.setUserCertificatesPath(mUserCertificatePath);
+		subscribeFriendList(mPrefs.isFriendlistsubscriptionEnabled());
 		//mLc.setCallErrorTone(Reason.NotFound, mErrorToneFile);
 
 		int availableCores = Runtime.getRuntime().availableProcessors();
@@ -897,7 +907,7 @@ public class LinphoneManager implements LinphoneCoreListener, LinphoneChatMessag
 		Log.i("New global state [",state,"]");
 		if (state == GlobalState.GlobalOn){
 			try {
-					initLiblinphone(lc);
+				initLiblinphone(lc);
 			} catch (LinphoneCoreException e) {
 				Log.e(e);
 			}
@@ -1032,7 +1042,6 @@ public class LinphoneManager implements LinphoneCoreListener, LinphoneChatMessag
 				}
 			}
 		}
-
 		if (state == State.CallUpdatedByRemote) {
 			// If the correspondent proposes video while audio call
 			boolean remoteVideo = call.getRemoteParams().getVideoEnabled();

src/org/linphone/LinphonePreferences.java

@@ -662,6 +662,15 @@ public class LinphonePreferences {
 		prxCfg.done();
 	}
 
+	public boolean isFriendlistsubscriptionEnabled() {
+		return getConfig().getBool("app", "friendlist_subscription_enabled", false);
+	}
+
+	public void enabledFriendlistSubscription(boolean enabled) {
+		getConfig().setBool("app", "friendlist_subscription_enabled", enabled);
+
+	}
+
 	public void setDefaultAccount(int accountIndex) {
 		LinphoneProxyConfig[] prxCfgs = getLc().getProxyConfigList();
 		if (accountIndex >= 0 && accountIndex < prxCfgs.length)