Fix Sharing Status screens

* Remove distinction between "shared with" and "shared by"
* Show all contacts a blog is shared with
* Show online status of contacts in sharing screen

briar-android/src/main/java/org/briarproject/briar/android/contact/ContactItem.java

@@ -10,13 +10,27 @@ import javax.annotation.concurrent.NotThreadSafe;
 public class ContactItem {
 
 	private final Contact contact;
+	private boolean connected;
 
 	public ContactItem(Contact contact) {
 		this.contact = contact;
 	}
 
+	public ContactItem(Contact contact, boolean connected) {
+		this.contact = contact;
+		this.connected = connected;
+	}
+
 	public Contact getContact() {
 		return contact;
 	}
 
+	boolean isConnected() {
+		return connected;
+	}
+
+	void setConnected(boolean connected) {
+		this.connected = connected;
+	}
+
 }

briar-android/src/main/java/org/briarproject/briar/android/contact/ContactItemViewHolder.java

@@ -1,5 +1,6 @@
 package org.briarproject.briar.android.contact;
 
+import android.support.annotation.Nullable;
 import android.support.annotation.UiThread;
 import android.support.v7.widget.RecyclerView;
 import android.view.View;
@@ -12,8 +13,6 @@ import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.contact.BaseContactListAdapter.OnContactClickListener;
 
-import javax.annotation.Nullable;
-
 import im.delight.android.identicons.IdenticonDrawable;
 
 @UiThread
@@ -24,6 +23,8 @@ public class ContactItemViewHolder<I extends ContactItem>
 	protected final ViewGroup layout;
 	protected final ImageView avatar;
 	protected final TextView name;
+	@Nullable
+	protected final ImageView bulb;
 
 	public ContactItemViewHolder(View v) {
 		super(v);
@@ -31,6 +32,7 @@ public class ContactItemViewHolder<I extends ContactItem>
 		layout = (ViewGroup) v;
 		avatar = (ImageView) v.findViewById(R.id.avatarView);
 		name = (TextView) v.findViewById(R.id.nameView);
+		bulb = (ImageView) v.findViewById(R.id.bulbView);
 	}
 
 	protected void bind(final I item,
@@ -41,6 +43,15 @@ public class ContactItemViewHolder<I extends ContactItem>
 		String contactName = author.getName();
 		name.setText(contactName);
 
+		if (bulb != null) {
+			// online/offline
+			if (item.isConnected()) {
+				bulb.setImageResource(R.drawable.contact_connected);
+			} else {
+				bulb.setImageResource(R.drawable.contact_disconnected);
+			}
+		}
+
 		layout.setOnClickListener(new View.OnClickListener() {
 			@Override
 			public void onClick(View v) {

briar-android/src/main/java/org/briarproject/briar/android/contact/ContactListItem.java

@@ -10,14 +10,13 @@ import javax.annotation.concurrent.NotThreadSafe;
 @NotNullByDefault
 public class ContactListItem extends ContactItem {
 
-	private boolean connected, empty;
+	private boolean empty;
 	private long timestamp;
 	private int unread;
 
 	public ContactListItem(Contact contact, boolean connected,
 			GroupCount count) {
-		super(contact);
-		this.connected = connected;
+		super(contact, connected);
 		this.empty = count.getMsgCount() == 0;
 		this.unread = count.getUnreadCount();
 		this.timestamp = count.getLatestMsgTime();
@@ -30,14 +29,6 @@ public class ContactListItem extends ContactItem {
 			unread++;
 	}
 
-	boolean isConnected() {
-		return connected;
-	}
-
-	void setConnected(boolean connected) {
-		this.connected = connected;
-	}
-
 	boolean isEmpty() {
 		return empty;
 	}

briar-android/src/main/java/org/briarproject/briar/android/contact/ContactListItemViewHolder.java

@@ -2,7 +2,6 @@ package org.briarproject.briar.android.contact;
 
 import android.support.annotation.UiThread;
 import android.view.View;
-import android.widget.ImageView;
 import android.widget.TextView;
 
 import org.briarproject.bramble.api.contact.ContactId;
@@ -20,13 +19,11 @@ import static org.briarproject.briar.android.util.UiUtils.formatDate;
 @NotNullByDefault
 class ContactListItemViewHolder extends ContactItemViewHolder<ContactListItem> {
 
-	protected final ImageView bulb;
 	private final TextView unread;
 	private final TextView date;
 
 	ContactListItemViewHolder(View v) {
 		super(v);
-		bulb = (ImageView) v.findViewById(R.id.bulbView);
 		unread = (TextView) v.findViewById(R.id.unreadCountView);
 		date = (TextView) v.findViewById(R.id.dateView);
 	}
@@ -53,13 +50,6 @@ class ContactListItemViewHolder extends ContactItemViewHolder<ContactListItem> {
 			date.setText(formatDate(date.getContext(), timestamp));
 		}
 
-		// online/offline
-		if (item.isConnected()) {
-			bulb.setImageResource(R.drawable.contact_connected);
-		} else {
-			bulb.setImageResource(R.drawable.contact_disconnected);
-		}
-
 		ContactId c = item.getContact().getId();
 		setTransitionName(avatar, UiUtils.getAvatarTransitionName(c));
 		setTransitionName(bulb, UiUtils.getBulbTransitionName(c));

briar-android/src/main/java/org/briarproject/briar/android/sharing/BlogSharingStatusActivity.java

@@ -3,6 +3,8 @@ package org.briarproject.briar.android.sharing;
 import org.briarproject.bramble.api.contact.Contact;
 import org.briarproject.bramble.api.db.DatabaseExecutor;
 import org.briarproject.bramble.api.db.DbException;
+import org.briarproject.bramble.api.nullsafety.MethodsNotNullByDefault;
+import org.briarproject.bramble.api.nullsafety.ParametersNotNullByDefault;
 import org.briarproject.briar.android.activity.ActivityComponent;
 import org.briarproject.briar.api.blog.BlogSharingManager;
 
@@ -10,6 +12,8 @@ import java.util.Collection;
 
 import javax.inject.Inject;
 
+@MethodsNotNullByDefault
+@ParametersNotNullByDefault
 public class BlogSharingStatusActivity extends SharingStatusActivity {
 
 	// Fields that are accessed from background threads must be volatile
@@ -21,16 +25,10 @@ public class BlogSharingStatusActivity extends SharingStatusActivity {
 		component.inject(this);
 	}
 
-	@DatabaseExecutor
 	@Override
+	@DatabaseExecutor
 	protected Collection<Contact> getSharedWith() throws DbException {
 		return blogSharingManager.getSharedWith(getGroupId());
 	}
 
-	@DatabaseExecutor
-	@Override
-	protected Collection<Contact> getSharedBy() throws DbException {
-		return blogSharingManager.getSharedBy(getGroupId());
-	}
-
 }

briar-android/src/main/java/org/briarproject/briar/android/sharing/ForumSharingStatusActivity.java

@@ -3,13 +3,18 @@ package org.briarproject.briar.android.sharing;
 import org.briarproject.bramble.api.contact.Contact;
 import org.briarproject.bramble.api.db.DatabaseExecutor;
 import org.briarproject.bramble.api.db.DbException;
+import org.briarproject.bramble.api.nullsafety.MethodsNotNullByDefault;
+import org.briarproject.bramble.api.nullsafety.ParametersNotNullByDefault;
 import org.briarproject.briar.android.activity.ActivityComponent;
 import org.briarproject.briar.api.forum.ForumSharingManager;
 
 import java.util.Collection;
+import java.util.HashSet;
 
 import javax.inject.Inject;
 
+@MethodsNotNullByDefault
+@ParametersNotNullByDefault
 public class ForumSharingStatusActivity extends SharingStatusActivity {
 
 	// Fields that are accessed from background threads must be volatile
@@ -21,16 +26,10 @@ public class ForumSharingStatusActivity extends SharingStatusActivity {
 		component.inject(this);
 	}
 
-	@DatabaseExecutor
 	@Override
+	@DatabaseExecutor
 	protected Collection<Contact> getSharedWith() throws DbException {
 		return forumSharingManager.getSharedWith(getGroupId());
 	}
 
-	@DatabaseExecutor
-	@Override
-	protected Collection<Contact> getSharedBy() throws DbException {
-		return forumSharingManager.getSharedBy(getGroupId());
-	}
-
 }

briar-android/src/main/java/org/briarproject/briar/android/sharing/SharingStatusActivity.java

@@ -2,11 +2,16 @@ package org.briarproject.briar.android.sharing;
 
 import android.content.Intent;
 import android.os.Bundle;
+import android.support.annotation.Nullable;
 import android.support.v7.widget.LinearLayoutManager;
 import android.view.MenuItem;
 
 import org.briarproject.bramble.api.contact.Contact;
+import org.briarproject.bramble.api.db.DatabaseExecutor;
 import org.briarproject.bramble.api.db.DbException;
+import org.briarproject.bramble.api.nullsafety.MethodsNotNullByDefault;
+import org.briarproject.bramble.api.nullsafety.ParametersNotNullByDefault;
+import org.briarproject.bramble.api.plugin.ConnectionRegistry;
 import org.briarproject.bramble.api.sync.GroupId;
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.activity.BriarActivity;
@@ -18,55 +23,53 @@ import java.util.Collection;
 import java.util.List;
 import java.util.logging.Logger;
 
+import javax.inject.Inject;
+
 import static java.util.logging.Level.WARNING;
 
+@MethodsNotNullByDefault
+@ParametersNotNullByDefault
 abstract class SharingStatusActivity extends BriarActivity {
 
+	@Inject
+	ConnectionRegistry connectionRegistry;
+
 	private static final Logger LOG =
 			Logger.getLogger(SharingStatusActivity.class.getName());
 
 	private GroupId groupId;
-	private BriarRecyclerView sharedByList, sharedWithList;
-	private SharingStatusAdapter sharedByAdapter, sharedWithAdapter;
+	private BriarRecyclerView list;
+	private SharingStatusAdapter adapter;
 
 	@Override
-	public void onCreate(Bundle savedInstanceState) {
+	public void onCreate(@Nullable Bundle savedInstanceState) {
 		super.onCreate(savedInstanceState);
 
-		setContentView(R.layout.activity_sharing_status);
+		setContentView(R.layout.list);
 
 		Intent i = getIntent();
 		byte[] b = i.getByteArrayExtra(GROUP_ID);
 		if (b == null) throw new IllegalStateException("No GroupId");
 		groupId = new GroupId(b);
 
-		sharedByList = (BriarRecyclerView) findViewById(R.id.sharedByView);
-		sharedByAdapter = new SharingStatusAdapter(this);
-		sharedByList.setLayoutManager(new LinearLayoutManager(this));
-		sharedByList.setAdapter(sharedByAdapter);
-		sharedByList.setEmptyText(getString(R.string.nobody));
-
-		sharedWithList = (BriarRecyclerView) findViewById(R.id.sharedWithView);
-		sharedWithAdapter = new SharingStatusAdapter(this);
-		sharedWithList.setLayoutManager(new LinearLayoutManager(this));
-		sharedWithList.setAdapter(sharedWithAdapter);
-		sharedWithList.setEmptyText(getString(R.string.nobody));
+		list = (BriarRecyclerView) findViewById(R.id.list);
+		adapter = new SharingStatusAdapter(this);
+		list.setLayoutManager(new LinearLayoutManager(this));
+		list.setAdapter(adapter);
+		list.setEmptyText(getString(R.string.nobody));
 	}
 
 	@Override
 	public void onStart() {
 		super.onStart();
-		loadSharedBy();
 		loadSharedWith();
 	}
 
 	@Override
 	public void onStop() {
 		super.onStop();
-		sharedByAdapter.clear();
-		sharedByList.showProgressBar();
-		sharedWithAdapter.clear();
-		sharedWithList.showProgressBar();
+		adapter.clear();
+		list.showProgressBar();
 	}
 
 	@Override
@@ -81,49 +84,13 @@ abstract class SharingStatusActivity extends BriarActivity {
 		}
 	}
 
-	/**
-	 * This must only be called from the DbThread
-	 */
+	@DatabaseExecutor
 	abstract protected Collection<Contact> getSharedWith() throws DbException;
 
-	/**
-	 * This must only be called from the DbThread
-	 */
-	abstract protected Collection<Contact> getSharedBy() throws DbException;
-
 	protected GroupId getGroupId() {
 		return groupId;
 	}
 
-	private void loadSharedBy() {
-		runOnDbThread(new Runnable() {
-			@Override
-			public void run() {
-				try {
-					List<ContactItem> contactItems = new ArrayList<>();
-					for (Contact c : getSharedBy()) {
-						ContactItem item = new ContactItem(c);
-						contactItems.add(item);
-					}
-					displaySharedBy(contactItems);
-				} catch (DbException e) {
-					if (LOG.isLoggable(WARNING))
-						LOG.log(WARNING, e.toString(), e);
-				}
-			}
-		});
-	}
-
-	private void displaySharedBy(final List<ContactItem> contacts) {
-		runOnUiThreadUnlessDestroyed(new Runnable() {
-			@Override
-			public void run() {
-				if (contacts.isEmpty()) sharedByList.showData();
-				else sharedByAdapter.addAll(contacts);
-			}
-		});
-	}
-
 	private void loadSharedWith() {
 		runOnDbThread(new Runnable() {
 			@Override
@@ -131,7 +98,9 @@ abstract class SharingStatusActivity extends BriarActivity {
 				try {
 					List<ContactItem> contactItems = new ArrayList<>();
 					for (Contact c : getSharedWith()) {
-						ContactItem item = new ContactItem(c);
+						boolean online =
+								connectionRegistry.isConnected(c.getId());
+						ContactItem item = new ContactItem(c, online);
 						contactItems.add(item);
 					}
 					displaySharedWith(contactItems);
@@ -147,8 +116,8 @@ abstract class SharingStatusActivity extends BriarActivity {
 		runOnUiThreadUnlessDestroyed(new Runnable() {
 			@Override
 			public void run() {
-				if (contacts.isEmpty()) sharedWithList.showData();
-				else sharedWithAdapter.addAll(contacts);
+				if (contacts.isEmpty()) list.showData();
+				else adapter.addAll(contacts);
 			}
 		});
 	}