Merge branch 'client-versioning-events' into 'master'

Update image attachment UI when new client version is received from contact

Closes #1638

See merge request briar/briar!1195

bramble-api/src/main/java/org/briarproject/bramble/api/versioning/ClientVersion.java

@@ -0,0 +1,63 @@
+package org.briarproject.bramble.api.versioning;
+
+import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
+import org.briarproject.bramble.api.sync.ClientId;
+
+import javax.annotation.concurrent.Immutable;
+
+@Immutable
+@NotNullByDefault
+public class ClientVersion implements Comparable<ClientVersion> {
+
+	private final ClientMajorVersion majorVersion;
+	private final int minorVersion;
+
+	public ClientVersion(ClientMajorVersion majorVersion,
+			int minorVersion) {
+		this.majorVersion = majorVersion;
+		this.minorVersion = minorVersion;
+	}
+
+	public ClientVersion(ClientId clientId, int majorVersion,
+			int minorVersion) {
+		this(new ClientMajorVersion(clientId, majorVersion), minorVersion);
+	}
+
+	public ClientMajorVersion getClientMajorVersion() {
+		return majorVersion;
+	}
+
+	public ClientId getClientId() {
+		return majorVersion.getClientId();
+	}
+
+	public int getMajorVersion() {
+		return majorVersion.getMajorVersion();
+	}
+
+	public int getMinorVersion() {
+		return minorVersion;
+	}
+
+	@Override
+	public boolean equals(Object o) {
+		if (o instanceof ClientVersion) {
+			ClientVersion cv = (ClientVersion) o;
+			return majorVersion.equals(cv.majorVersion)
+					&& minorVersion == cv.minorVersion;
+		}
+		return false;
+	}
+
+	@Override
+	public int hashCode() {
+		return majorVersion.hashCode();
+	}
+
+	@Override
+	public int compareTo(ClientVersion cv) {
+		int compare = majorVersion.compareTo(cv.majorVersion);
+		if (compare != 0) return compare;
+		return minorVersion - cv.minorVersion;
+	}
+}

bramble-api/src/main/java/org/briarproject/bramble/api/versioning/event/ClientVersionUpdatedEvent.java

@@ -0,0 +1,34 @@
+package org.briarproject.bramble.api.versioning.event;
+
+import org.briarproject.bramble.api.contact.ContactId;
+import org.briarproject.bramble.api.event.Event;
+import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
+import org.briarproject.bramble.api.versioning.ClientVersion;
+
+import javax.annotation.concurrent.Immutable;
+
+/**
+ * An event that is broadcast when we receive a client versioning update from
+ * a contact.
+ */
+@Immutable
+@NotNullByDefault
+public class ClientVersionUpdatedEvent extends Event {
+
+	private final ContactId contactId;
+	private final ClientVersion clientVersion;
+
+	public ClientVersionUpdatedEvent(ContactId contactId,
+			ClientVersion clientVersion) {
+		this.contactId = contactId;
+		this.clientVersion = clientVersion;
+	}
+
+	public ContactId getContactId() {
+		return contactId;
+	}
+
+	public ClientVersion getClientVersion() {
+		return clientVersion;
+	}
+}

bramble-core/src/main/java/org/briarproject/bramble/versioning/ClientVersioningManagerImpl.java

@@ -26,7 +26,9 @@ import org.briarproject.bramble.api.sync.MessageId;
 import org.briarproject.bramble.api.sync.validation.IncomingMessageHook;
 import org.briarproject.bramble.api.system.Clock;
 import org.briarproject.bramble.api.versioning.ClientMajorVersion;
+import org.briarproject.bramble.api.versioning.ClientVersion;
 import org.briarproject.bramble.api.versioning.ClientVersioningManager;
+import org.briarproject.bramble.api.versioning.event.ClientVersionUpdatedEvent;
 
 import java.util.ArrayList;
 import java.util.Collection;
@@ -80,9 +82,9 @@ class ClientVersioningManagerImpl implements ClientVersioningManager,
 	@Override
 	public void registerClient(ClientId clientId, int majorVersion,
 			int minorVersion, ClientVersioningHook hook) {
-		ClientMajorVersion cv = new ClientMajorVersion(clientId, majorVersion);
-		clients.add(new ClientVersion(cv, minorVersion));
-		hooks.put(cv, hook);
+		ClientMajorVersion cmv = new ClientMajorVersion(clientId, majorVersion);
+		clients.add(new ClientVersion(cmv, minorVersion));
+		hooks.put(cmv, hook);
 	}
 
 	@Override
@@ -96,9 +98,9 @@ class ClientVersioningManagerImpl implements ClientVersioningManager,
 			Update remoteUpdate = loadUpdate(txn, latest.remote.messageId);
 			Map<ClientMajorVersion, Visibility> visibilities =
 					getVisibilities(localUpdate.states, remoteUpdate.states);
-			ClientMajorVersion cv =
+			ClientMajorVersion key =
 					new ClientMajorVersion(clientId, majorVersion);
-			Visibility v = visibilities.get(cv);
+			Visibility v = visibilities.get(key);
 			return v == null ? INVISIBLE : v;
 		} catch (FormatException e) {
 			throw new DbException(e);
@@ -112,10 +114,11 @@ class ClientVersioningManagerImpl implements ClientVersioningManager,
 			LatestUpdates latest = findLatestUpdates(txn, contactId);
 			if (latest == null || latest.remote == null) return -1;
 			Update remoteUpdate = loadUpdate(txn, latest.remote.messageId);
-			ClientMajorVersion cv =
+			ClientMajorVersion key =
 					new ClientMajorVersion(clientId, majorVersion);
 			for (ClientState remote : remoteUpdate.states) {
-				if (remote.majorVersion.equals(cv)) return remote.minorVersion;
+				if (remote.clientVersion.getClientMajorVersion().equals(key))
+					return remote.clientVersion.getMinorVersion();
 			}
 			return -1;
 		} catch (FormatException e) {
@@ -226,9 +229,21 @@ class ClientVersioningManagerImpl implements ClientVersioningManager,
 			Map<ClientMajorVersion, Visibility> after =
 					getVisibilities(newLocalStates, newRemoteStates);
 			// Call hooks for any visibilities that have changed
+			ContactId c = getContactId(txn, m.getGroupId());
 			if (!before.equals(after)) {
-				Contact c = getContact(txn, m.getGroupId());
-				callVisibilityHooks(txn, c, before, after);
+				Contact contact = db.getContact(txn, c);
+				callVisibilityHooks(txn, contact, before, after);
+			}
+			// Broadcast events for any new client versions
+			Set<ClientVersion> oldRemoteVersions = new HashSet<>();
+			for (ClientState cs : oldRemoteStates) {
+				oldRemoteVersions.add(cs.clientVersion);
+			}
+			for (ClientState cs : newRemoteStates) {
+				if (!oldRemoteVersions.contains(cs.clientVersion)) {
+					txn.attach(new ClientVersionUpdatedEvent(c,
+							cs.clientVersion));
+				}
 			}
 		} catch (FormatException e) {
 			throw new InvalidMessageException(e);
@@ -256,8 +271,8 @@ class ClientVersioningManagerImpl implements ClientVersioningManager,
 	}
 
 	private BdfList encodeClientVersion(ClientVersion cv) {
-		return BdfList.of(cv.majorVersion.getClientId().getString(),
-				cv.majorVersion.getMajorVersion(), cv.minorVersion);
+		return BdfList.of(cv.getClientId().getString(), cv.getMajorVersion(),
+				cv.getMinorVersion());
 	}
 
 	/**
@@ -298,8 +313,7 @@ class ClientVersioningManagerImpl implements ClientVersioningManager,
 			ClientId clientId = new ClientId(cv.getString(0));
 			int majorVersion = cv.getLong(1).intValue();
 			int minorVersion = cv.getLong(2).intValue();
-			parsed.add(new ClientVersion(clientId, majorVersion,
-					minorVersion));
+			parsed.add(new ClientVersion(clientId, majorVersion, minorVersion));
 		}
 		return parsed;
 	}
@@ -418,13 +432,15 @@ class ClientVersioningManagerImpl implements ClientVersioningManager,
 	private List<ClientState> updateStatesFromLocalVersions(
 			List<ClientState> oldStates, List<ClientVersion> newVersions) {
 		Map<ClientMajorVersion, ClientState> oldMap = new HashMap<>();
-		for (ClientState cs : oldStates) oldMap.put(cs.majorVersion, cs);
+		for (ClientState cs : oldStates) {
+			oldMap.put(cs.clientVersion.getClientMajorVersion(), cs);
+		}
 		List<ClientState> newStates = new ArrayList<>(newVersions.size());
 		for (ClientVersion newVersion : newVersions) {
-			ClientState oldState = oldMap.get(newVersion.majorVersion);
+			ClientMajorVersion key = newVersion.getClientMajorVersion();
+			ClientState oldState = oldMap.get(key);
 			boolean active = oldState != null && oldState.active;
-			newStates.add(new ClientState(newVersion.majorVersion,
-					newVersion.minorVersion, active));
+			newStates.add(new ClientState(newVersion, active));
 		}
 		return newStates;
 	}
@@ -451,21 +467,25 @@ class ClientVersioningManagerImpl implements ClientVersioningManager,
 	}
 
 	private BdfList encodeClientState(ClientState cs) {
-		return BdfList.of(cs.majorVersion.getClientId().getString(),
-				cs.majorVersion.getMajorVersion(), cs.minorVersion, cs.active);
+		ClientVersion cv = cs.clientVersion;
+		return BdfList.of(cv.getClientId().getString(), cv.getMajorVersion(),
+				cv.getMinorVersion(), cs.active);
 	}
 
 	private Map<ClientMajorVersion, Visibility> getVisibilities(
 			List<ClientState> localStates, List<ClientState> remoteStates) {
 		Map<ClientMajorVersion, ClientState> remoteMap = new HashMap<>();
-		for (ClientState cs : remoteStates) remoteMap.put(cs.majorVersion, cs);
+		for (ClientState cs : remoteStates) {
+			remoteMap.put(cs.clientVersion.getClientMajorVersion(), cs);
+		}
 		Map<ClientMajorVersion, Visibility> visibilities = new HashMap<>();
 		for (ClientState local : localStates) {
-			ClientState remote = remoteMap.get(local.majorVersion);
-			if (remote == null) visibilities.put(local.majorVersion, INVISIBLE);
-			else if (remote.active)
-				visibilities.put(local.majorVersion, SHARED);
-			else visibilities.put(local.majorVersion, VISIBLE);
+			ClientMajorVersion key =
+					local.clientVersion.getClientMajorVersion();
+			ClientState remote = remoteMap.get(key);
+			if (remote == null) visibilities.put(key, INVISIBLE);
+			else if (remote.active) visibilities.put(key, SHARED);
+			else visibilities.put(key, VISIBLE);
 		}
 		return visibilities;
 	}
@@ -486,9 +506,9 @@ class ClientVersioningManagerImpl implements ClientVersioningManager,
 		}
 	}
 
-	private void callVisibilityHook(Transaction txn, ClientMajorVersion cv,
+	private void callVisibilityHook(Transaction txn, ClientMajorVersion cmv,
 			Contact c, Visibility v) throws DbException {
-		ClientVersioningHook hook = hooks.get(cv);
+		ClientVersioningHook hook = hooks.get(cmv);
 		if (hook != null) hook.onClientVisibilityChanging(txn, c, v);
 	}
 
@@ -496,18 +516,17 @@ class ClientVersioningManagerImpl implements ClientVersioningManager,
 			List<ClientVersion> versions) throws DbException {
 		List<ClientState> states = new ArrayList<>(versions.size());
 		for (ClientVersion cv : versions) {
-			states.add(new ClientState(cv.majorVersion, cv.minorVersion,
-					false));
+			states.add(new ClientState(cv, false));
 		}
 		storeUpdate(txn, g, states, 1);
 	}
 
-	private Contact getContact(Transaction txn, GroupId g) throws DbException {
+	private ContactId getContactId(Transaction txn, GroupId g)
+			throws DbException {
 		try {
 			BdfDictionary meta =
 					clientHelper.getGroupMetadataAsDictionary(txn, g);
-			int id = meta.getLong(GROUP_KEY_CONTACT_ID).intValue();
-			return db.getContact(txn, new ContactId(id));
+			return new ContactId(meta.getLong(GROUP_KEY_CONTACT_ID).intValue());
 		} catch (FormatException e) {
 			throw new DbException(e);
 		}
@@ -516,13 +535,16 @@ class ClientVersioningManagerImpl implements ClientVersioningManager,
 	private List<ClientState> updateStatesFromRemoteStates(
 			List<ClientState> oldLocalStates, List<ClientState> remoteStates) {
 		Set<ClientMajorVersion> remoteSet = new HashSet<>();
-		for (ClientState cs : remoteStates) remoteSet.add(cs.majorVersion);
+		for (ClientState cs : remoteStates) {
+			remoteSet.add(cs.clientVersion.getClientMajorVersion());
+		}
 		List<ClientState> newLocalStates =
 				new ArrayList<>(oldLocalStates.size());
 		for (ClientState oldState : oldLocalStates) {
-			boolean active = remoteSet.contains(oldState.majorVersion);
-			newLocalStates.add(new ClientState(oldState.majorVersion,
-					oldState.minorVersion, active));
+			ClientMajorVersion cmv =
+					oldState.clientVersion.getClientMajorVersion();
+			boolean active = remoteSet.contains(cmv);
+			newLocalStates.add(new ClientState(oldState.clientVersion, active));
 		}
 		return newLocalStates;
 	}
@@ -561,61 +583,19 @@ class ClientVersioningManagerImpl implements ClientVersioningManager,
 		}
 	}
 
-	private static class ClientVersion implements Comparable<ClientVersion> {
-
-		private final ClientMajorVersion majorVersion;
-		private final int minorVersion;
-
-		private ClientVersion(ClientMajorVersion majorVersion,
-				int minorVersion) {
-			this.majorVersion = majorVersion;
-			this.minorVersion = minorVersion;
-		}
-
-		private ClientVersion(ClientId clientId, int majorVersion,
-				int minorVersion) {
-			this(new ClientMajorVersion(clientId, majorVersion), minorVersion);
-		}
-
-		@Override
-		public boolean equals(Object o) {
-			if (o instanceof ClientVersion) {
-				ClientVersion cv = (ClientVersion) o;
-				return majorVersion.equals(cv.majorVersion)
-						&& minorVersion == cv.minorVersion;
-			}
-			return false;
-		}
-
-		@Override
-		public int hashCode() {
-			return majorVersion.hashCode();
-		}
-
-		@Override
-		public int compareTo(ClientVersion cv) {
-			int compare = majorVersion.compareTo(cv.majorVersion);
-			if (compare != 0) return compare;
-			return minorVersion - cv.minorVersion;
-		}
-	}
-
 	private static class ClientState {
 
-		private final ClientMajorVersion majorVersion;
-		private final int minorVersion;
+		private final ClientVersion clientVersion;
 		private final boolean active;
 
-		private ClientState(ClientMajorVersion majorVersion, int minorVersion,
-				boolean active) {
-			this.majorVersion = majorVersion;
-			this.minorVersion = minorVersion;
+		private ClientState(ClientVersion clientVersion, boolean active) {
+			this.clientVersion = clientVersion;
 			this.active = active;
 		}
 
 		private ClientState(ClientId clientId, int majorVersion,
 				int minorVersion, boolean active) {
-			this(new ClientMajorVersion(clientId, majorVersion), minorVersion,
+			this(new ClientVersion(clientId, majorVersion, minorVersion),
 					active);
 		}
 
@@ -623,8 +603,7 @@ class ClientVersioningManagerImpl implements ClientVersioningManager,
 		public boolean equals(Object o) {
 			if (o instanceof ClientState) {
 				ClientState cs = (ClientState) o;
-				return majorVersion.equals(cs.majorVersion)
-						&& minorVersion == cs.minorVersion
+				return clientVersion.equals(cs.clientVersion)
 						&& active == cs.active;
 			}
 			return false;
@@ -632,7 +611,7 @@ class ClientVersioningManagerImpl implements ClientVersioningManager,
 
 		@Override
 		public int hashCode() {
-			return majorVersion.hashCode();
+			return clientVersion.hashCode();
 		}
 	}
 }

bramble-core/src/test/java/org/briarproject/bramble/versioning/ClientVersioningManagerImplTest.java

@@ -60,6 +60,8 @@ public class ClientVersioningManagerImplTest extends BrambleMockTestCase {
 	private final ClientId clientId = getClientId();
 	private final long now = System.currentTimeMillis();
 	private final Transaction txn = new Transaction(null, false);
+	private final BdfDictionary groupMeta = BdfDictionary.of(
+			new BdfEntry(GROUP_KEY_CONTACT_ID, contact.getId().getInt()));
 
 	private ClientVersioningManagerImpl createInstance() {
 		context.checking(new Expectations() {{
@@ -107,8 +109,6 @@ public class ClientVersioningManagerImplTest extends BrambleMockTestCase {
 	}
 
 	private void expectAddingContact() throws Exception {
-		BdfDictionary groupMeta = BdfDictionary.of(
-				new BdfEntry(GROUP_KEY_CONTACT_ID, contact.getId().getInt()));
 		long now = System.currentTimeMillis();
 		BdfList localUpdateBody = BdfList.of(new BdfList(), 1L);
 		Message localUpdate = getMessage(contactGroup.getId());
@@ -459,6 +459,10 @@ public class ClientVersioningManagerImplTest extends BrambleMockTestCase {
 			// Delete the old remote update
 			oneOf(db).deleteMessage(txn, oldRemoteUpdateId);
 			oneOf(db).deleteMessageMetadata(txn, oldRemoteUpdateId);
+			// Get contact ID
+			oneOf(clientHelper).getGroupMetadataAsDictionary(txn,
+					contactGroup.getId());
+			will(returnValue(groupMeta));
 			// No states or visibilities have changed
 		}});
 
@@ -488,6 +492,10 @@ public class ClientVersioningManagerImplTest extends BrambleMockTestCase {
 			// Load the latest local update
 			oneOf(clientHelper).getMessageAsList(txn, oldLocalUpdateId);
 			will(returnValue(oldLocalUpdateBody));
+			// Get client ID
+			oneOf(clientHelper).getGroupMetadataAsDictionary(txn,
+					contactGroup.getId());
+			will(returnValue(groupMeta));
 			// No states or visibilities have changed
 		}});
 

briar-android/src/main/java/org/briarproject/briar/android/conversation/ConversationActivity.java

@@ -46,9 +46,11 @@ import org.briarproject.bramble.api.nullsafety.ParametersNotNullByDefault;
 import org.briarproject.bramble.api.plugin.ConnectionRegistry;
 import org.briarproject.bramble.api.plugin.event.ContactConnectedEvent;
 import org.briarproject.bramble.api.plugin.event.ContactDisconnectedEvent;
+import org.briarproject.bramble.api.sync.ClientId;
 import org.briarproject.bramble.api.sync.MessageId;
 import org.briarproject.bramble.api.sync.event.MessagesAckedEvent;
 import org.briarproject.bramble.api.sync.event.MessagesSentEvent;
+import org.briarproject.bramble.api.versioning.event.ClientVersionUpdatedEvent;
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.activity.ActivityComponent;
 import org.briarproject.briar.android.activity.BriarActivity;
@@ -99,7 +101,6 @@ import javax.inject.Inject;
 import de.hdodenhof.circleimageview.CircleImageView;
 import im.delight.android.identicons.IdenticonDrawable;
 import uk.co.samuelwall.materialtaptargetprompt.MaterialTapTargetPrompt;
-import uk.co.samuelwall.materialtaptargetprompt.MaterialTapTargetPrompt.PromptStateChangeListener;
 
 import static android.arch.lifecycle.Lifecycle.State.STARTED;
 import static android.os.Build.VERSION.SDK_INT;
@@ -130,8 +131,6 @@ import static org.briarproject.briar.android.util.UiUtils.getBulbTransitionName;
 import static org.briarproject.briar.android.util.UiUtils.observeOnce;
 import static org.briarproject.briar.api.messaging.MessagingConstants.MAX_ATTACHMENTS_PER_MESSAGE;
 import static org.briarproject.briar.api.messaging.MessagingConstants.MAX_PRIVATE_MESSAGE_TEXT_LENGTH;
-import static uk.co.samuelwall.materialtaptargetprompt.MaterialTapTargetPrompt.STATE_DISMISSED;
-import static uk.co.samuelwall.materialtaptargetprompt.MaterialTapTargetPrompt.STATE_FINISHED;
 
 @MethodsNotNullByDefault
 @ParametersNotNullByDefault
@@ -263,11 +262,15 @@ public class ConversationActivity extends BriarActivity
 			ImagePreview imagePreview = findViewById(R.id.imagePreview);
 			sendController = new TextAttachmentController(textInputView,
 					imagePreview, this, viewModel);
-			observeOnce(viewModel.hasImageSupport(), this, hasSupport -> {
-				if (hasSupport != null && hasSupport) {
-					// TODO: remove cast when removing feature flag
-					((TextAttachmentController) sendController)
-							.setImagesSupported();
+			viewModel.hasImageSupport().observe(this, new Observer<Boolean>() {
+				@Override
+				public void onChanged(@Nullable Boolean hasSupport) {
+					if (hasSupport != null && hasSupport) {
+						// TODO: remove cast when removing feature flag
+						((TextAttachmentController) sendController)
+								.setImagesSupported();
+						viewModel.hasImageSupport().removeObserver(this);
+					}
 				}
 			});
 		} else {
@@ -649,6 +652,15 @@ public class ConversationActivity extends BriarActivity
 				LOG.info("Contact disconnected");
 				displayContactOnlineStatus();
 			}
+		} else if (e instanceof ClientVersionUpdatedEvent) {
+			ClientVersionUpdatedEvent c = (ClientVersionUpdatedEvent) e;
+			if (c.getContactId().equals(contactId)) {
+				ClientId clientId = c.getClientVersion().getClientId();
+				if (clientId.equals(MessagingManager.CLIENT_ID)) {
+					LOG.info("Contact's messaging client was updated");
+					viewModel.recheckFeaturesAndOnboarding(contactId);
+				}
+			}
 		}
 	}
 
@@ -829,9 +841,7 @@ public class ConversationActivity extends BriarActivity
 
 	private void showImageOnboarding() {
 		// TODO: remove cast when removing feature flag
-		((TextAttachmentController) sendController)
-				.showImageOnboarding(this, () ->
-						viewModel.onImageOnboardingSeen());
+		((TextAttachmentController) sendController).showImageOnboarding(this);
 	}
 
 	private void showIntroductionOnboarding(@Nullable Boolean show) {
@@ -865,11 +875,6 @@ public class ConversationActivity extends BriarActivity
 			return;
 		}
 
-		PromptStateChangeListener listener = (prompt, state) -> {
-			if (state == STATE_DISMISSED || state == STATE_FINISHED) {
-				viewModel.onIntroductionOnboardingSeen();
-			}
-		};
 		new MaterialTapTargetPrompt.Builder(ConversationActivity.this,
 				R.style.OnboardingDialogTheme).setTarget(target)
 				.setPrimaryText(R.string.introduction_onboarding_title)
@@ -877,7 +882,6 @@ public class ConversationActivity extends BriarActivity
 				.setIcon(R.drawable.ic_more_vert_accent)
 				.setBackgroundColour(
 						ContextCompat.getColor(this, R.color.briar_primary))
-				.setPromptStateChangeListener(listener)
 				.show();
 	}
 

briar-android/src/main/java/org/briarproject/briar/android/conversation/ConversationViewModel.java

@@ -231,47 +231,24 @@ public class ConversationViewModel extends AndroidViewModel
 		boolean introductionSupported = contacts.size() > 1;
 		showIntroductionAction.postValue(introductionSupported);
 
+		// we only show one onboarding dialog at a time
 		Settings settings = settingsManager.getSettings(SETTINGS_NAMESPACE);
 		if (imagesSupported &&
 				settings.getBoolean(SHOW_ONBOARDING_IMAGE, true)) {
-			// check if we should show onboarding, only if images are supported
+			onOnboardingShown(SHOW_ONBOARDING_IMAGE);
 			showImageOnboarding.postEvent(true);
-			// allow observer to stop listening for changes
-			showIntroductionOnboarding.postEvent(false);
-		} else {
-			// allow observer to stop listening for changes
-			showImageOnboarding.postEvent(false);
-			// we only show one onboarding dialog at a time
-			if (introductionSupported &&
-					settings.getBoolean(SHOW_ONBOARDING_INTRODUCTION, true)) {
-				showIntroductionOnboarding.postEvent(true);
-			} else {
-				// allow observer to stop listening for changes
-				showIntroductionOnboarding.postEvent(false);
-			}
+		} else if (introductionSupported &&
+				settings.getBoolean(SHOW_ONBOARDING_INTRODUCTION, true)) {
+			onOnboardingShown(SHOW_ONBOARDING_INTRODUCTION);
+			showIntroductionOnboarding.postEvent(true);
 		}
 	}
 
-	@UiThread
-	void onImageOnboardingSeen() {
-		onOnboardingSeen(SHOW_ONBOARDING_IMAGE);
-	}
-
-	@UiThread
-	void onIntroductionOnboardingSeen() {
-		onOnboardingSeen(SHOW_ONBOARDING_INTRODUCTION);
-	}
-
-	private void onOnboardingSeen(String key) {
-		dbExecutor.execute(() -> {
-			try {
-				Settings settings = new Settings();
-				settings.putBoolean(key, false);
-				settingsManager.mergeSettings(settings, SETTINGS_NAMESPACE);
-			} catch (DbException e) {
-				logException(LOG, WARNING, e);
-			}
-		});
+	@DatabaseExecutor
+	private void onOnboardingShown(String key) throws DbException {
+		Settings settings = new Settings();
+		settings.putBoolean(key, false);
+		settingsManager.mergeSettings(settings, SETTINGS_NAMESPACE);
 	}
 
 	private void createMessage(GroupId groupId, @Nullable String text,
@@ -352,4 +329,14 @@ public class ConversationViewModel extends AndroidViewModel
 		return addedHeader;
 	}
 
+	@UiThread
+	void recheckFeaturesAndOnboarding(ContactId contactId) {
+		dbExecutor.execute(() -> {
+			try {
+				checkFeaturesAndOnboarding(contactId);
+			} catch (DbException e) {
+				logException(LOG, WARNING, e);
+			}
+		});
+	}
 }

briar-android/src/main/java/org/briarproject/briar/android/view/TextAttachmentController.java

@@ -28,7 +28,6 @@ import java.util.Collection;
 import java.util.List;
 
 import uk.co.samuelwall.materialtaptargetprompt.MaterialTapTargetPrompt;
-import uk.co.samuelwall.materialtaptargetprompt.MaterialTapTargetPrompt.PromptStateChangeListener;
 
 import static android.arch.lifecycle.Lifecycle.State.DESTROYED;
 import static android.content.Intent.ACTION_GET_CONTENT;
@@ -44,8 +43,6 @@ import static android.widget.Toast.LENGTH_LONG;
 import static org.briarproject.briar.android.util.UiUtils.resolveColorAttribute;
 import static org.briarproject.briar.api.messaging.MessagingConstants.IMAGE_MIME_TYPES;
 import static org.briarproject.briar.api.messaging.MessagingConstants.MAX_ATTACHMENTS_PER_MESSAGE;
-import static uk.co.samuelwall.materialtaptargetprompt.MaterialTapTargetPrompt.STATE_DISMISSED;
-import static uk.co.samuelwall.materialtaptargetprompt.MaterialTapTargetPrompt.STATE_FINISHED;
 
 @UiThread
 @NotNullByDefault
@@ -269,13 +266,7 @@ public class TextAttachmentController extends TextSendController
 		reset();
 	}
 
-	public void showImageOnboarding(Activity activity,
-			Runnable onOnboardingSeen) {
-		PromptStateChangeListener listener = (prompt, state) -> {
-			if (state == STATE_DISMISSED || state == STATE_FINISHED) {
-				onOnboardingSeen.run();
-			}
-		};
+	public void showImageOnboarding(Activity activity) {
 		int color = resolveColorAttribute(activity, R.attr.colorControlNormal);
 		new MaterialTapTargetPrompt.Builder(activity,
 				R.style.OnboardingDialogTheme).setTarget(sendButton)
@@ -284,7 +275,6 @@ public class TextAttachmentController extends TextSendController
 				.setBackgroundColour(getColor(activity, R.color.briar_primary))
 				.setIcon(R.drawable.ic_image)
 				.setIconDrawableColourFilter(color)
-				.setPromptStateChangeListener(listener)
 				.show();
 	}