add models for Chat States + manager

src/main/java/im/conversations/android/xmpp/Managers.java

@@ -9,6 +9,7 @@ import im.conversations.android.xmpp.manager.AxolotlManager;
 import im.conversations.android.xmpp.manager.BlockingManager;
 import im.conversations.android.xmpp.manager.BookmarkManager;
 import im.conversations.android.xmpp.manager.CarbonsManager;
+import im.conversations.android.xmpp.manager.ChatStateManager;
 import im.conversations.android.xmpp.manager.DiscoManager;
 import im.conversations.android.xmpp.manager.NickManager;
 import im.conversations.android.xmpp.manager.PepManager;
@@ -29,6 +30,7 @@ public final class Managers {
                 .put(BlockingManager.class, new BlockingManager(context, connection))
                 .put(BookmarkManager.class, new BookmarkManager(context, connection))
                 .put(CarbonsManager.class, new CarbonsManager(context, connection))
+                .put(ChatStateManager.class, new ChatStateManager(context, connection))
                 .put(DiscoManager.class, new DiscoManager(context, connection))
                 .put(NickManager.class, new NickManager(context, connection))
                 .put(PepManager.class, new PepManager(context, connection))

src/main/java/im/conversations/android/xmpp/manager/ChatStateManager.java

@@ -0,0 +1,23 @@
+package im.conversations.android.xmpp.manager;
+
+import android.content.Context;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import eu.siacs.conversations.xmpp.Jid;
+import im.conversations.android.xmpp.XmppConnection;
+import im.conversations.android.xmpp.model.state.ChatStateNotification;
+
+public class ChatStateManager extends AbstractManager{
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(ChatStateManager.class);
+
+    public ChatStateManager(Context context, XmppConnection connection) {
+        super(context, connection);
+    }
+
+    public void handle(final Jid from, final ChatStateNotification chatState) {
+        LOGGER.info("Received {} from {}", chatState, from);
+    }
+}

src/main/java/im/conversations/android/xmpp/model/state/Active.java

@@ -0,0 +1,11 @@
+package im.conversations.android.xmpp.model.state;
+
+import im.conversations.android.annotation.XmlElement;
+
+@XmlElement
+public class Active extends ChatStateNotification {
+
+    protected Active() {
+        super(Active.class);
+    }
+}

src/main/java/im/conversations/android/xmpp/model/state/ChatStateNotification.java

@@ -0,0 +1,10 @@
+package im.conversations.android.xmpp.model.state;
+
+import im.conversations.android.xmpp.model.Extension;
+
+public abstract class ChatStateNotification extends Extension {
+
+    protected ChatStateNotification(Class<? extends Extension> clazz) {
+        super(clazz);
+    }
+}

src/main/java/im/conversations/android/xmpp/model/state/Composing.java

@@ -0,0 +1,11 @@
+package im.conversations.android.xmpp.model.state;
+
+import im.conversations.android.annotation.XmlElement;
+
+@XmlElement
+public class Composing extends ChatStateNotification {
+
+    protected Composing() {
+        super(Composing.class);
+    }
+}

src/main/java/im/conversations/android/xmpp/model/state/Gone.java

@@ -0,0 +1,11 @@
+package im.conversations.android.xmpp.model.state;
+
+import im.conversations.android.annotation.XmlElement;
+
+@XmlElement
+public class Gone extends ChatStateNotification {
+
+    protected Gone() {
+        super(Gone.class);
+    }
+}

src/main/java/im/conversations/android/xmpp/model/state/Inactive.java

@@ -0,0 +1,11 @@
+package im.conversations.android.xmpp.model.state;
+
+import im.conversations.android.annotation.XmlElement;
+
+@XmlElement
+public class Inactive extends ChatStateNotification {
+
+    protected Inactive() {
+        super(Inactive.class);
+    }
+}

src/main/java/im/conversations/android/xmpp/model/state/Paused.java

@@ -0,0 +1,11 @@
+package im.conversations.android.xmpp.model.state;
+
+import im.conversations.android.annotation.XmlElement;
+
+@XmlElement
+public class Paused extends ChatStateNotification {
+
+    protected Paused() {
+        super(Paused.class);
+    }
+}

src/main/java/im/conversations/android/xmpp/model/state/package-info.java

@@ -0,0 +1,5 @@
+@XmlPackage(namespace = Namespace.CHAT_STATES)
+package im.conversations.android.xmpp.model.state;
+
+import eu.siacs.conversations.xml.Namespace;
+import im.conversations.android.annotation.XmlPackage;

src/main/java/im/conversations/android/xmpp/processor/MessageProcessor.java

@@ -4,6 +4,7 @@ import android.content.Context;
 import eu.siacs.conversations.xmpp.Jid;
 import im.conversations.android.xmpp.XmppConnection;
 import im.conversations.android.xmpp.manager.CarbonsManager;
+import im.conversations.android.xmpp.manager.ChatStateManager;
 import im.conversations.android.xmpp.manager.PubSubManager;
 import im.conversations.android.xmpp.manager.ReceiptManager;
 import im.conversations.android.xmpp.model.DeliveryReceiptRequest;
@@ -11,6 +12,8 @@ import im.conversations.android.xmpp.model.carbons.Received;
 import im.conversations.android.xmpp.model.carbons.Sent;
 import im.conversations.android.xmpp.model.pubsub.event.Event;
 import im.conversations.android.xmpp.model.stanza.Message;
+import im.conversations.android.xmpp.model.state.ChatStateNotification;
+
 import java.util.function.Consumer;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -58,6 +61,10 @@ public class MessageProcessor extends XmppConnection.Delegate implements Consume
         if (isRealtimeProcessor()) {
             final var requests = message.getExtensions(DeliveryReceiptRequest.class);
             getManager(ReceiptManager.class).received(from, id, requests);
+            final var chatState = message.getExtension(ChatStateNotification.class);
+            if (chatState != null) {
+                getManager(ChatStateManager.class).handle(from, chatState);
+            }
         }
 
         // TODO parse chat states