Implement first prototype of private group message threads

briar-android/src/org/briarproject/android/ActivityComponent.java

@@ -28,6 +28,7 @@ import org.briarproject.android.keyagreement.KeyAgreementActivity;
 import org.briarproject.android.keyagreement.ShowQrCodeFragment;
 import org.briarproject.android.panic.PanicPreferencesActivity;
 import org.briarproject.android.panic.PanicResponderActivity;
+import org.briarproject.android.privategroup.conversation.GroupActivity;
 import org.briarproject.android.privategroup.list.GroupListFragment;
 import org.briarproject.android.sharing.ContactSelectorFragment;
 import org.briarproject.android.sharing.InvitationsBlogActivity;
@@ -72,6 +73,8 @@ public interface ActivityComponent {
 
 	void inject(InvitationsBlogActivity activity);
 
+	void inject(GroupActivity activity);
+
 	void inject(CreateForumActivity activity);
 
 	void inject(ShareForumActivity activity);

briar-android/src/org/briarproject/android/ActivityModule.java

@@ -21,6 +21,8 @@ import org.briarproject.android.controller.SetupController;
 import org.briarproject.android.controller.SetupControllerImpl;
 import org.briarproject.android.forum.ForumController;
 import org.briarproject.android.forum.ForumControllerImpl;
+import org.briarproject.android.privategroup.conversation.GroupController;
+import org.briarproject.android.privategroup.conversation.GroupControllerImpl;
 import org.briarproject.android.privategroup.list.GroupListController;
 import org.briarproject.android.privategroup.list.GroupListControllerImpl;
 
@@ -99,6 +101,13 @@ public class ActivityModule {
 		return groupListController;
 	}
 
+	@ActivityScope
+	@Provides
+	protected GroupController provideGroupController(
+			GroupControllerImpl groupController) {
+		return groupController;
+	}
+
 	@ActivityScope
 	@Provides
 	protected ForumController provideForumController(

briar-android/src/org/briarproject/android/AndroidComponent.java

@@ -35,6 +35,7 @@ import org.briarproject.api.messaging.MessagingManager;
 import org.briarproject.api.messaging.PrivateMessageFactory;
 import org.briarproject.api.plugins.ConnectionRegistry;
 import org.briarproject.api.plugins.PluginManager;
+import org.briarproject.api.privategroup.GroupMessageFactory;
 import org.briarproject.api.privategroup.PrivateGroupManager;
 import org.briarproject.api.settings.SettingsManager;
 import org.briarproject.plugins.AndroidPluginsModule;
@@ -96,6 +97,8 @@ public interface AndroidComponent extends CoreEagerSingletons {
 
 	PrivateGroupManager privateGroupManager();
 
+	GroupMessageFactory groupMessageFactory();
+
 	ForumManager forumManager();
 
 	ForumSharingManager forumSharingManager();

briar-android/src/org/briarproject/android/forum/ForumControllerImpl.java

@@ -166,8 +166,7 @@ public class ForumControllerImpl
 									p.getMessage().getTimestamp(),
 									p.getAuthor(), OURSELVES, true);
 
-					resultHandler.onResult(new ForumEntry(h,
-							bodyCache.get(p.getMessage().getId())));
+					resultHandler.onResult(buildItem(h));
 				} catch (DbException e) {
 					if (LOG.isLoggable(WARNING))
 						LOG.log(WARNING, e.toString(), e);

briar-android/src/org/briarproject/android/privategroup/conversation/GroupActivity.java

@@ -0,0 +1,82 @@
+package org.briarproject.android.privategroup.conversation;
+
+import android.os.Bundle;
+import android.support.annotation.LayoutRes;
+import android.support.v7.widget.LinearLayoutManager;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+
+import org.briarproject.R;
+import org.briarproject.android.ActivityComponent;
+import org.briarproject.android.threaded.ThreadListActivity;
+import org.briarproject.android.threaded.ThreadListController;
+import org.briarproject.api.privategroup.GroupMessageHeader;
+import org.briarproject.api.privategroup.PrivateGroup;
+
+import javax.inject.Inject;
+
+public class GroupActivity extends
+		ThreadListActivity<PrivateGroup, GroupMessageItem, GroupMessageHeader, GroupMessageAdapter> {
+
+	@Inject
+	protected GroupController controller;
+
+	@Override
+	public void injectActivity(ActivityComponent component) {
+		component.inject(this);
+	}
+
+	@Override
+	protected ThreadListController<PrivateGroup, GroupMessageItem, GroupMessageHeader> getController() {
+		return controller;
+	}
+
+	@Override
+	public void onCreate(Bundle state) {
+		super.onCreate(state);
+		list.setEmptyText(R.string.groups_no_messages);
+	}
+
+	@Override
+	protected @LayoutRes int getLayout() {
+		return R.layout.activity_forum;
+	}
+
+	@Override
+	protected GroupMessageAdapter createAdapter(
+			LinearLayoutManager layoutManager) {
+		return new GroupMessageAdapter(this, layoutManager);
+	}
+
+	@Override
+	public boolean onCreateOptionsMenu(Menu menu) {
+		// Inflate the menu items for use in the action bar
+		MenuInflater inflater = getMenuInflater();
+		inflater.inflate(R.menu.group_actions, menu);
+
+		return super.onCreateOptionsMenu(menu);
+	}
+
+	@Override
+	public boolean onOptionsItemSelected(final MenuItem item) {
+		switch (item.getItemId()) {
+			case R.id.action_group_compose_message:
+				showTextInput(null);
+				return true;
+			default:
+				return super.onOptionsItemSelected(item);
+		}
+	}
+
+	@Override
+	protected int getItemPostedString() {
+		return R.string.groups_message_sent;
+	}
+
+	@Override
+	protected int getItemReceivedString() {
+		return R.string.groups_message_received;
+	}
+
+}

briar-android/src/org/briarproject/android/privategroup/conversation/GroupController.java

@@ -0,0 +1,11 @@
+package org.briarproject.android.privategroup.conversation;
+
+import org.briarproject.android.threaded.ThreadListController;
+import org.briarproject.api.privategroup.GroupMessageHeader;
+import org.briarproject.api.privategroup.PrivateGroup;
+
+public interface GroupController
+		extends
+		ThreadListController<PrivateGroup, GroupMessageItem, GroupMessageHeader> {
+
+}

briar-android/src/org/briarproject/android/privategroup/conversation/GroupControllerImpl.java

@@ -0,0 +1,165 @@
+package org.briarproject.android.privategroup.conversation;
+
+import android.support.annotation.Nullable;
+
+import org.briarproject.android.controller.handler.ResultExceptionHandler;
+import org.briarproject.android.threaded.ThreadListControllerImpl;
+import org.briarproject.api.FormatException;
+import org.briarproject.api.db.DbException;
+import org.briarproject.api.event.Event;
+import org.briarproject.api.event.GroupMessageAddedEvent;
+import org.briarproject.api.identity.LocalAuthor;
+import org.briarproject.api.privategroup.GroupMessage;
+import org.briarproject.api.privategroup.GroupMessageFactory;
+import org.briarproject.api.privategroup.GroupMessageHeader;
+import org.briarproject.api.privategroup.PrivateGroup;
+import org.briarproject.api.privategroup.PrivateGroupManager;
+import org.briarproject.api.sync.MessageId;
+
+import java.security.GeneralSecurityException;
+import java.util.Collection;
+import java.util.logging.Logger;
+
+import javax.inject.Inject;
+
+import static java.util.logging.Level.INFO;
+import static java.util.logging.Level.WARNING;
+import static org.briarproject.api.identity.Author.Status.OURSELVES;
+
+public class GroupControllerImpl
+		extends ThreadListControllerImpl<PrivateGroup, GroupMessageItem, GroupMessageHeader>
+		implements GroupController {
+
+	private static final Logger LOG =
+			Logger.getLogger(GroupControllerImpl.class.getName());
+
+	@Inject
+	volatile GroupMessageFactory groupMessageFactory;
+	@Inject
+	volatile PrivateGroupManager privateGroupManager;
+
+	@Inject
+	GroupControllerImpl() {
+		super();
+	}
+
+	@Override
+	public void onActivityResume() {
+		super.onActivityResume();
+		notificationManager.clearForumPostNotification(groupId);
+	}
+
+	@Override
+	public void eventOccurred(Event e) {
+		super.eventOccurred(e);
+
+		if (e instanceof GroupMessageAddedEvent) {
+			final GroupMessageAddedEvent pe = (GroupMessageAddedEvent) e;
+			if (!pe.isLocal() && pe.getGroupId().equals(groupId)) {
+				LOG.info("Group message received, adding...");
+				final GroupMessageHeader fph = pe.getHeader();
+				updateNewestTimestamp(fph.getTimestamp());
+				listener.runOnUiThreadUnlessDestroyed(new Runnable() {
+					@Override
+					public void run() {
+						listener.onHeaderReceived(fph);
+					}
+				});
+			}
+		}
+	}
+
+	@Override
+	protected PrivateGroup loadGroupItem() throws DbException {
+		return privateGroupManager.getPrivateGroup(groupId);
+	}
+
+	@Override
+	protected Collection<GroupMessageHeader> loadHeaders() throws DbException {
+		return privateGroupManager.getHeaders(groupId);
+	}
+
+	@Override
+	protected void loadBodies(Collection<GroupMessageHeader> headers)
+			throws DbException {
+		for (GroupMessageHeader header : headers) {
+			if (!bodyCache.containsKey(header.getId())) {
+				String body =
+						privateGroupManager.getMessageBody(header.getId());
+				bodyCache.put(header.getId(), body);
+			}
+		}
+	}
+
+	@Override
+	protected void markRead(MessageId id) throws DbException {
+		privateGroupManager.setReadFlag(groupId, id, true);
+	}
+
+	@Override
+	public void send(final String body, @Nullable final MessageId parentId,
+			final ResultExceptionHandler<GroupMessageItem, DbException> handler) {
+		cryptoExecutor.execute(new Runnable() {
+			@Override
+			public void run() {
+				LOG.info("Create message...");
+				long timestamp = System.currentTimeMillis();
+				timestamp = Math.max(timestamp, newestTimeStamp.get());
+				GroupMessage gm;
+				try {
+					LocalAuthor a = identityManager.getLocalAuthor();
+					gm = groupMessageFactory.createGroupMessage(groupId,
+							timestamp, parentId, a, body);
+				} catch (GeneralSecurityException | FormatException e) {
+					throw new RuntimeException(e);
+				} catch (DbException e) {
+					if (LOG.isLoggable(WARNING))
+						LOG.log(WARNING, e.toString(), e);
+					handler.onException(e);
+					return;
+				}
+				bodyCache.put(gm.getMessage().getId(), body);
+				storeMessage(gm, handler);
+			}
+		});
+	}
+
+	private void storeMessage(final GroupMessage gm,
+			final ResultExceptionHandler<GroupMessageItem, DbException> handler) {
+		runOnDbThread(new Runnable() {
+			@Override
+			public void run() {
+				try {
+					LOG.info("Store message...");
+					long now = System.currentTimeMillis();
+					privateGroupManager.addLocalMessage(gm);
+					long duration = System.currentTimeMillis() - now;
+					if (LOG.isLoggable(INFO))
+						LOG.info("Storing message took " + duration + " ms");
+
+					GroupMessageHeader h = new GroupMessageHeader(groupId,
+							gm.getMessage().getId(), gm.getParent(),
+							gm.getMessage().getTimestamp(), gm.getAuthor(),
+							OURSELVES, true);
+
+					handler.onResult(buildItem(h));
+				} catch (DbException e) {
+					if (LOG.isLoggable(WARNING))
+						LOG.log(WARNING, e.toString(), e);
+					handler.onException(e);
+				}
+			}
+		});
+	}
+
+	@Override
+	protected void deleteGroupItem(PrivateGroup group) throws DbException {
+		privateGroupManager.removePrivateGroup(group.getId());
+	}
+
+	@Override
+	protected GroupMessageItem buildItem(GroupMessageHeader header) {
+		return new GroupMessageItem(header, bodyCache.get(header.getId()));
+	}
+
+}

briar-android/src/org/briarproject/android/privategroup/conversation/GroupMessageAdapter.java

@@ -0,0 +1,28 @@
+package org.briarproject.android.privategroup.conversation;
+
+import android.support.annotation.UiThread;
+import android.support.v7.widget.LinearLayoutManager;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import org.briarproject.R;
+import org.briarproject.android.threaded.ThreadItemAdapter;
+
+@UiThread
+public class GroupMessageAdapter extends ThreadItemAdapter<GroupMessageItem> {
+
+	public GroupMessageAdapter(ThreadItemListener<GroupMessageItem> listener,
+			LinearLayoutManager layoutManager) {
+		super(listener, layoutManager);
+	}
+
+	@Override
+	public GroupMessageViewHolder onCreateViewHolder(ViewGroup parent,
+			int viewType) {
+		View v = LayoutInflater.from(parent.getContext())
+				.inflate(R.layout.list_item_forum_post, parent, false);
+		return new GroupMessageViewHolder(v);
+	}
+
+}

briar-android/src/org/briarproject/android/privategroup/conversation/GroupMessageViewHolder.java

@@ -0,0 +1,14 @@
+package org.briarproject.android.privategroup.conversation;
+
+import android.view.View;
+
+import org.briarproject.android.threaded.ThreadItemViewHolder;
+
+public class GroupMessageViewHolder
+		extends ThreadItemViewHolder<GroupMessageItem> {
+
+	public GroupMessageViewHolder(View v) {
+		super(v);
+	}
+
+}

briar-android/src/org/briarproject/android/privategroup/list/GroupListAdapter.java

@@ -1,7 +1,6 @@
 package org.briarproject.android.privategroup.list;
 
 import android.content.Context;
-import android.support.annotation.Nullable;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;

briar-android/src/org/briarproject/android/privategroup/list/GroupViewHolder.java

@@ -1,7 +1,9 @@
 package org.briarproject.android.privategroup.list;
 
 import android.content.Context;
+import android.content.Intent;
 import android.support.annotation.Nullable;
+import android.support.v4.app.ActivityOptionsCompat;
 import android.support.v7.widget.RecyclerView;
 import android.view.View;
 import android.view.View.OnClickListener;
@@ -10,13 +12,18 @@ import android.widget.Button;
 import android.widget.TextView;
 
 import org.briarproject.R;
+import org.briarproject.android.privategroup.conversation.GroupActivity;
 import org.briarproject.android.util.AndroidUtils;
 import org.briarproject.android.view.TextAvatarView;
+import org.briarproject.api.sync.GroupId;
 import org.jetbrains.annotations.NotNull;
 
 import static android.support.v4.content.ContextCompat.getColor;
+import static android.support.v4.content.ContextCompat.startActivities;
 import static android.view.View.GONE;
 import static android.view.View.VISIBLE;
+import static org.briarproject.android.BriarActivity.GROUP_ID;
+import static org.briarproject.android.BriarActivity.GROUP_NAME;
 
 class GroupViewHolder extends RecyclerView.ViewHolder {
 
@@ -44,7 +51,7 @@ class GroupViewHolder extends RecyclerView.ViewHolder {
 		remove = (Button) v.findViewById(R.id.removeButton);
 	}
 
-	void bindView(Context ctx, @Nullable final GroupItem group,
+	void bindView(final Context ctx, @Nullable final GroupItem group,
 			@NotNull final OnGroupRemoveClickListener listener) {
 		if (group == null) return;
 
@@ -115,15 +122,15 @@ class GroupViewHolder extends RecyclerView.ViewHolder {
 		layout.setOnClickListener(new OnClickListener() {
 			@Override
 			public void onClick(View v) {
-/*
 				Intent i = new Intent(ctx, GroupActivity.class);
-				GroupId id = item.getId();
+				GroupId id = group.getId();
 				i.putExtra(GROUP_ID, id.getBytes());
+				i.putExtra(GROUP_NAME, group.getName());
 				ActivityOptionsCompat options = ActivityOptionsCompat
 						.makeCustomAnimation(ctx, android.R.anim.fade_in,
 								android.R.anim.fade_out);
-				ActivityCompat.startActivity(ctx, i, options.toBundle());
-*/
+				Intent[] intents = {i};
+				startActivities(ctx, intents, options.toBundle());
 			}
 		});
 	}

briar-android/src/org/briarproject/android/threaded/ThreadListActivity.java

@@ -90,8 +90,8 @@ public abstract class ThreadListActivity<G extends BaseGroup, I extends ThreadIt
 		getController().loadGroupItem(
 				new UiResultExceptionHandler<G, DbException>(this) {
 					@Override
-					public void onResultUi(G forum) {
-						setTitle(forum.getName());
+					public void onResultUi(G groupItem) {
+						setTitle(groupItem.getName());
 					}
 
 					@Override