[android] rough sketch of UI for adding contacts remotely

bramble-api/src/main/java/org/briarproject/bramble/api/contact/ContactManager.java

@@ -10,12 +10,17 @@ import org.briarproject.bramble.api.lifecycle.LifecycleManager;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 
 import java.util.Collection;
+import java.util.regex.Pattern;
 
 import javax.annotation.Nullable;
 
 @NotNullByDefault
 public interface ContactManager {
 
+	int LINK_LENGTH = 64;
+	Pattern LINK_REGEX =
+			Pattern.compile("(briar://)?([a-z2-7]{" + LINK_LENGTH + "})");
+
 	/**
 	 * Registers a hook to be called whenever a contact is added or removed.
 	 * This method should be called before
@@ -55,7 +60,7 @@ public interface ContactManager {
 	/**
 	 * Returns the static link that needs to be sent to the contact to be added.
 	 */
-	String getRemoteContactLink();
+	String getRemoteContactLink() throws DbException;
 
 	/**
 	 * Returns true if the given link is syntactically valid.
@@ -69,12 +74,12 @@ public interface ContactManager {
 	 * @param alias The alias the user has given this contact.
 	 * @return A PendingContact representing the contact to be added.
 	 */
-	PendingContact addRemoteContactRequest(String link, String alias);
+	void addRemoteContactRequest(String link, String alias);
 
 	/**
 	 * Returns a list of {@link PendingContact}s.
 	 */
-	Collection<PendingContact> getPendingContacts();
+	Collection<PendingContact> getPendingContacts() throws DbException;
 
 	/**
 	 * Removes a {@link PendingContact} that is in state

bramble-core/src/main/java/org/briarproject/bramble/contact/ContactManagerImpl.java

@@ -5,11 +5,14 @@ import org.briarproject.bramble.api.contact.ContactId;
 import org.briarproject.bramble.api.contact.ContactManager;
 import org.briarproject.bramble.api.contact.PendingContact;
 import org.briarproject.bramble.api.contact.PendingContactId;
+import org.briarproject.bramble.api.contact.event.PendingContactStateChangedEvent;
 import org.briarproject.bramble.api.crypto.SecretKey;
 import org.briarproject.bramble.api.db.DatabaseComponent;
+import org.briarproject.bramble.api.db.DatabaseExecutor;
 import org.briarproject.bramble.api.db.DbException;
 import org.briarproject.bramble.api.db.NoSuchContactException;
 import org.briarproject.bramble.api.db.Transaction;
+import org.briarproject.bramble.api.event.Event;
 import org.briarproject.bramble.api.identity.Author;
 import org.briarproject.bramble.api.identity.AuthorId;
 import org.briarproject.bramble.api.identity.AuthorInfo;
@@ -18,17 +21,18 @@ import org.briarproject.bramble.api.identity.LocalAuthor;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 import org.briarproject.bramble.api.transport.KeyManager;
 
+import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
 import java.util.Random;
 import java.util.concurrent.CopyOnWriteArrayList;
-import java.util.regex.Pattern;
+import java.util.concurrent.Executor;
 
 import javax.annotation.Nullable;
 import javax.annotation.concurrent.ThreadSafe;
 import javax.inject.Inject;
 
-import static java.util.Collections.emptyList;
+import static java.lang.System.currentTimeMillis;
 import static org.briarproject.bramble.api.contact.PendingContactState.WAITING_FOR_CONNECTION;
 import static org.briarproject.bramble.api.identity.AuthorConstants.MAX_AUTHOR_NAME_LENGTH;
 import static org.briarproject.bramble.api.identity.AuthorConstants.MAX_PUBLIC_KEY_LENGTH;
@@ -42,11 +46,12 @@ import static org.briarproject.bramble.util.StringUtils.toUtf8;
 @NotNullByDefault
 class ContactManagerImpl implements ContactManager {
 
-	private static final int LINK_LENGTH = 64;
 	private static final String REMOTE_CONTACT_LINK =
 			"briar://" + getRandomBase32String(LINK_LENGTH);
-	private static final Pattern LINK_REGEX =
-			Pattern.compile("(briar://)?([a-z2-7]{" + LINK_LENGTH + "})");
+	// TODO remove
+	private final List<PendingContact> pendingContacts = new ArrayList<>();
+	@DatabaseExecutor
+	private final Executor dbExecutor;
 
 	private final DatabaseComponent db;
 	private final KeyManager keyManager;
@@ -54,9 +59,11 @@ class ContactManagerImpl implements ContactManager {
 	private final List<ContactHook> hooks;
 
 	@Inject
-	ContactManagerImpl(DatabaseComponent db, KeyManager keyManager,
+	ContactManagerImpl(DatabaseComponent db,
+			@DatabaseExecutor Executor dbExecutor, KeyManager keyManager,
 			IdentityManager identityManager) {
 		this.db = db;
+		this.dbExecutor = dbExecutor;
 		this.keyManager = keyManager;
 		this.identityManager = identityManager;
 		hooks = new CopyOnWriteArrayList<>();
@@ -99,9 +106,14 @@ class ContactManagerImpl implements ContactManager {
 	@Override
 	public String getRemoteContactLink() {
 		// TODO replace with real implementation
+		try {
+			Thread.sleep(1500);
+		} catch (InterruptedException ignored) {
+		}
 		return REMOTE_CONTACT_LINK;
 	}
 
+	// TODO remove
 	@SuppressWarnings("SameParameterValue")
 	private static String getRandomBase32String(int length) {
 		Random random = new Random();
@@ -120,22 +132,37 @@ class ContactManagerImpl implements ContactManager {
 	}
 
 	@Override
-	public PendingContact addRemoteContactRequest(String link, String alias) {
+	public void addRemoteContactRequest(String link, String alias) {
 		// TODO replace with real implementation
-		PendingContactId id = new PendingContactId(link.getBytes());
-		return new PendingContact(id, new byte[MAX_PUBLIC_KEY_LENGTH], alias,
-				WAITING_FOR_CONNECTION, System.currentTimeMillis());
+		dbExecutor.execute(() -> {
+			try {
+				Thread.sleep(2000);
+			} catch (InterruptedException ignored) {
+			}
+			PendingContactId id = new PendingContactId(link.getBytes());
+			PendingContact pendingContact =
+					new PendingContact(id, new byte[MAX_PUBLIC_KEY_LENGTH],
+							alias, WAITING_FOR_CONNECTION, currentTimeMillis());
+			pendingContacts.add(pendingContact);
+			Event e = new PendingContactStateChangedEvent(id,
+					WAITING_FOR_CONNECTION);
+			try {
+				db.transaction(true, txn -> txn.attach(e));
+			} catch (DbException ignored) {
+			}
+		});
 	}
 
 	@Override
 	public Collection<PendingContact> getPendingContacts() {
 		// TODO replace with real implementation
-		return emptyList();
+		return pendingContacts;
 	}
 
 	@Override
 	public void removePendingContact(PendingContact pendingContact) {
 		// TODO replace with real implementation
+		pendingContacts.remove(pendingContact);
 	}
 
 	@Override

bramble-core/src/test/java/org/briarproject/bramble/contact/ContactManagerImplTest.java

@@ -16,12 +16,14 @@ import org.briarproject.bramble.api.identity.LocalAuthor;
 import org.briarproject.bramble.api.transport.KeyManager;
 import org.briarproject.bramble.test.BrambleMockTestCase;
 import org.briarproject.bramble.test.DbExpectations;
+import org.briarproject.bramble.test.ImmediateExecutor;
 import org.jmock.Expectations;
 import org.jmock.Mockery;
 import org.junit.Test;
 
 import java.util.Collection;
 import java.util.Random;
+import java.util.concurrent.Executor;
 
 import static java.util.Collections.emptyList;
 import static java.util.Collections.singletonList;
@@ -56,8 +58,9 @@ public class ContactManagerImplTest extends BrambleMockTestCase {
 	private final ContactId contactId = contact.getId();
 
 	public ContactManagerImplTest() {
-		contactManager =
-				new ContactManagerImpl(db, keyManager, identityManager);
+		Executor dbExecutor = new ImmediateExecutor();
+		contactManager = new ContactManagerImpl(db, dbExecutor, keyManager,
+				identityManager);
 	}
 
 	@Test

briar-android/artwork/ic_nearby.svg

+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="24"
+   height="24"
+   viewBox="0 0 24 24"
+   version="1.1"
+   id="svg12"
+   sodipodi:docname="nearby.svg"
+   style="fill:none"
+   inkscape:version="0.92.3 (2405546, 2018-03-11)">
+  <metadata
+     id="metadata18">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <defs
+     id="defs16" />
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1920"
+     inkscape:window-height="1020"
+     id="namedview14"
+     showgrid="false"
+     inkscape:zoom="15.170655"
+     inkscape:cx="9.6488139"
+     inkscape:cy="11.430963"
+     inkscape:window-x="1440"
+     inkscape:window-y="24"
+     inkscape:window-maximized="0"
+     inkscape:current-layer="svg12" />
+  <path
+     style="opacity:1;fill:#110000;fill-opacity:1;fill-rule:evenodd;stroke:none;stroke-width:1.37658679px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
+     d="M 11.173062,2.4030645 C 9.9685672,2.4471125 8.7753453,2.7130268 7.6640583,3.2033016 8.187015,3.7262611 8.3967456,4.1446273 8.6059301,4.5629964 11.639055,3.412486 15.091396,4.0393524 17.497058,6.4449696 c 0.732151,0.7321412 1.359335,1.5691523 1.673062,2.5104781 0.418424,-0.2091845 0.941213,-0.3133673 1.464151,-0.3133672 h 0.104456 C 20.215788,7.3869735 19.482978,6.3401088 18.541616,5.2941863 16.528265,3.2807917 13.82295,2.3061587 11.173062,2.4030645 Z M 5.1695142,3.2316286 A 2.7193895,2.7193895 0 0 0 2.4501247,5.9510181 2.7193895,2.7193895 0 0 0 5.1695142,8.6704075 2.7193895,2.7193895 0 0 0 7.8889037,5.9510181 2.7193895,2.7193895 0 0 0 5.1695142,3.2316286 Z M 2.5404169,8.5358543 C 0.97153856,12.196552 1.7027262,16.484811 4.6313017,19.413413 c 1.8826514,1.987239 4.497171,2.930071 7.0073853,2.930071 2.510177,0 5.126431,-0.942832 7.009154,-2.930071 0.941272,-0.941362 1.672402,-2.091035 2.195341,-3.346124 h -0.104455 c -0.522939,0 -1.045818,-0.104155 -1.464151,-0.313367 -0.418423,0.941362 -0.940911,1.778328 -1.673062,2.510478 -3.242327,3.242419 -8.5770829,3.242419 -11.819429,0 C 3.27188,15.858828 2.6451458,12.406442 3.795656,9.3732707 3.377287,9.164086 2.9587814,8.9542233 2.5404169,8.5358543 Z m 9.0540081,0.8444984 a 2.9913288,2.9913284 0 0 0 -2.9902654,2.9902663 2.9913288,2.9913284 0 0 0 2.9902654,2.992036 2.9913288,2.9913284 0 0 0 2.992037,-2.992036 2.9913288,2.9913284 0 0 0 -2.992037,-2.9902663 z m 9.138991,0.423134 a 2.7193895,2.7193895 0 0 0 -2.71939,2.7193903 2.7193895,2.7193895 0 0 0 2.71939,2.719389 2.7193895,2.7193895 0 0 0 2.719389,-2.719389 2.7193895,2.7193895 0 0 0 -2.719389,-2.7193903 z"
+     id="path832-3-6"
+     inkscape:connector-curvature="0" />
+</svg>

briar-android/artwork/nickname.svg

+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="150"
+   height="178"
+   viewBox="0 0 150 178"
+   fill="none"
+   version="1.1"
+   id="svg129"
+   sodipodi:docname="nickname.svg"
+   inkscape:version="0.92.3 (2405546, 2018-03-11)">
+  <metadata
+     id="metadata133">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1920"
+     inkscape:window-height="1020"
+     id="namedview131"
+     showgrid="false"
+     inkscape:zoom="3.7500494"
+     inkscape:cx="84.461975"
+     inkscape:cy="96.344913"
+     inkscape:window-x="1440"
+     inkscape:window-y="24"
+     inkscape:window-maximized="0"
+     inkscape:current-layer="svg129" />
+  <path
+     d="M 85.1905,0.127869 3.35693,0.328805 C 2.46521,0.330621 1.6107,0.690255 0.981217,1.32866 0.351735,1.96706 -0.0011965,2.83198 3.04782e-6,3.73331 L 0.372743,156.201 c 0.001185,0.446 0.089367,0.888 0.259505,1.3 0.170138,0.412 0.418902,0.786 0.732092,1.101 0.31319,0.315 0.68466,0.564 1.09322,0.734 0.40856,0.17 0.84619,0.257 1.28792,0.256 l 81.83362,-0.201 c 0.8917,-0.003 1.746,-0.363 2.375,-1.002 0.6291,-0.639 0.9814,-1.504 0.9796,-2.405 L 88.5542,3.51639 C 88.5512,2.61665 88.1955,1.75479 87.565,1.11965 86.9345,0.484503 86.0807,0.127864 85.1905,0.127869 Z"
+     id="path2"
+     inkscape:connector-curvature="0"
+     style="display:inline;opacity:0.25;fill:url(#paint0_linear)" />
+  <path
+     d="M 84.2815,-0.0019907 4.27572,0.195606 C 2.57395,0.199809 1.19777,1.59763 1.20193,3.31772 L 1.56691,154.298 c 0.00416,1.72 1.38709,3.111 3.08885,3.107 l 80.00584,-0.198 c 1.7017,-0.004 3.0779,-1.402 3.0737,-3.122 L 87.3704,3.1049 C 87.3662,1.38481 85.9833,-0.0061937 84.2815,-0.0019907 Z"
+     id="path4"
+     inkscape:connector-curvature="0"
+     style="display:inline;opacity:0.25;fill:#6d6d6d;fill-opacity:0.7" />
+  <path
+     style="display:inline;opacity:0.25;fill:#646464"
+     d="M 81.939453 3.9570312 L 65.933594 3.9960938 C 65.688694 5.6638138 64.861562 7.1881588 63.601562 8.2929688 C 62.341563 9.3977688 60.732453 10.010031 59.064453 10.019531 L 29.302734 10.091797 C 27.634734 10.090597 26.021259 9.4871919 24.755859 8.3886719 C 23.490459 7.2901519 22.655444 5.7700256 22.402344 4.1035156 L 6.6367188 4.1425781 C 5.7689587 4.1449981 4.9382819 4.4954875 4.3261719 5.1171875 C 3.7140519 5.7388975 3.3712469 6.5799313 3.3730469 7.4570312 L 3.4609375 44.068359 L 3.7167969 150.16797 C 3.7209769 151.04497 4.0691969 151.88495 4.6855469 152.50195 C 5.3018969 153.11895 6.1361462 153.46394 7.0039062 153.46094 L 82.306641 153.27539 C 83.171641 153.27039 83.999475 152.92078 84.609375 152.30078 C 85.219375 151.68078 85.560547 150.8408 85.560547 149.9668 L 85.306641 43.5625 L 85.220703 7.2558594 C 85.218303 6.3787594 84.870959 5.5386319 84.255859 4.9199219 C 83.640859 4.3012219 82.807253 3.9552112 81.939453 3.9570312 z M 52.652344 5.7910156 L 34.357422 6.0683594 C 34.107922 6.0721494 33.908409 6.27906 33.912109 6.53125 L 33.916016 6.8300781 C 33.919716 7.0822681 34.1255 7.28504 34.375 7.28125 L 52.671875 7.0019531 C 52.921375 6.9981731 53.118934 6.7912525 53.115234 6.5390625 L 53.111328 6.2402344 C 53.107628 5.9880444 52.901844 5.7872256 52.652344 5.7910156 z "
+     id="path6" />
+  <path
+     d="M 57.2036,6.934 C 57.6016,6.92797 57.9193,6.59699 57.9133,6.19476 57.9074,5.79252 57.5799,5.47134 57.182,5.47738 c -0.398,0.00604 -0.7157,0.33701 -0.7098,0.73924 0.006,0.40224 0.3335,0.72342 0.7314,0.71738 z"
+     id="path10"
+     inkscape:connector-curvature="0"
+     style="opacity:0.25;fill:#dbdbdb" />
+  <path
+     style="display:inline;opacity:0.25;fill:#e0e0e0"
+     d="m 17.640625,19.458984 c -4.1846,0 -7.576172,3.445513 -7.576172,7.695313 0,4.2498 3.391572,7.695312 7.576172,7.695312 4.1845,0 7.576172,-3.445512 7.576172,-7.695312 0,-4.2498 -3.391672,-7.695313 -7.576172,-7.695313 z m 19.882813,4.177735 v 3.234375 h 40.117187 v -3.234375 z m 0,6.466797 v 3.234375 H 77.640625 V 30.103516 Z M 17.640625,44.087891 c -4.1846,0 -7.576172,3.443559 -7.576172,7.693359 0,4.2498 3.391572,7.695313 7.576172,7.695312 4.1845,0 7.576172,-3.445512 7.576172,-7.695312 0,-4.2498 -3.391672,-7.693359 -7.576172,-7.693359 z m 19.882813,4.177734 V 51.5 h 40.117187 v -3.234375 z m 0,6.466797 v 3.232422 H 77.640625 V 54.732422 Z M 17.640625,68.714844 c -4.1846,0 -7.576172,3.445512 -7.576172,7.695312 0,4.2498 3.391572,7.695313 7.576172,7.695313 4.1845,0 7.576172,-3.445513 7.576172,-7.695313 0,-4.2498 -3.391672,-7.695312 -7.576172,-7.695312 z m 19.882813,4.179687 v 3.232422 h 40.117187 v -3.232422 z m 0,6.466797 V 82.59375 H 77.640625 V 79.361328 Z M 17.640625,93.34375 c -4.1846,0 -7.576172,3.445613 -7.576172,7.69531 0,4.25 3.391572,7.69532 7.576172,7.69532 4.1845,0 7.576172,-3.44532 7.576172,-7.69532 0,-4.249698 -3.391672,-7.69531 -7.576172,-7.69531 z m 19.882813,4.179688 v 3.232422 h 40.117187 v -3.232422 z m 0,6.464842 v 3.23438 h 40.117187 v -3.23438 z m -19.882813,13.98438 c -4.1846,0 -7.576172,3.44631 -7.576172,7.69531 0,4.25 3.391572,7.69336 7.576172,7.69336 4.1845,0 7.576172,-3.44336 7.576172,-7.69336 0,-4.249 -3.391672,-7.69531 -7.576172,-7.69531 z m 19.882813,4.17773 v 3.23438 h 40.117187 v -3.23438 z m 0,6.4668 v 3.23437 h 40.117187 v -3.23437 z"
+     id="path12"
+     inkscape:connector-curvature="0" />
+  <path
+     style="display:inline;fill:#313131"
+     inkscape:connector-curvature="0"
+     id="path44"
+     d="m 136.95,18.4066 -80.0056,0.1976 c -1.7018,0.0042 -3.078,1.402 -3.0738,3.1221 l 0.365,150.9807 c 0.0041,1.72 1.3871,3.111 3.0888,3.107 l 80.0056,-0.198 c 1.702,-0.004 3.078,-1.402 3.074,-3.122 L 140.039,21.5135 c -0.004,-1.7201 -1.387,-3.1111 -3.089,-3.1069 z" />
+  <path
+     style="display:inline;fill:#3e3e3e"
+     d="M 134.60938 22.357422 L 118.59961 22.394531 C 118.35561 24.062231 117.52758 25.586606 116.26758 26.691406 C 115.00758 27.796206 113.39847 28.408469 111.73047 28.417969 L 81.96875 28.492188 C 80.30065 28.490987 78.689228 27.885609 77.423828 26.787109 C 76.158428 25.688609 75.323313 24.168453 75.070312 22.501953 L 59.304688 22.541016 C 58.436887 22.543416 57.604288 22.893925 56.992188 23.515625 C 56.380088 24.137325 56.037262 24.980322 56.039062 25.857422 L 56.128906 62.46875 L 56.748047 62.466797 L 56.128906 62.470703 L 56.382812 168.57031 C 56.385213 169.44731 56.732656 170.28725 57.347656 170.90625 C 57.962756 171.52425 58.796362 171.87114 59.664062 171.86914 L 134.9668 171.68359 C 135.8348 171.68159 136.66534 171.33098 137.27734 170.70898 C 137.88934 170.08798 138.23247 169.24614 138.23047 168.36914 L 137.97266 62.21875 L 137.97461 62.21875 L 137.88867 25.65625 C 137.88667 24.77915 137.54078 23.939012 136.92578 23.320312 C 136.31078 22.701612 135.47738 22.355522 134.60938 22.357422 z "
+     id="path46" />
+  <path
+     style="display:inline;fill:#e0e0e0"
+     d="M 109.84961 23.890625 C 109.45161 23.896725 109.13462 24.228559 109.14062 24.630859 C 109.14663 25.033059 109.47309 25.353756 109.87109 25.347656 C 110.26909 25.341656 110.58608 25.009622 110.58008 24.607422 C 110.57408 24.205222 110.24761 23.884625 109.84961 23.890625 z M 105.32031 24.201172 L 87.025391 24.478516 C 86.775891 24.482316 86.576378 24.691159 86.580078 24.943359 L 86.583984 25.242188 C 86.587684 25.494387 86.793469 25.695206 87.042969 25.691406 L 105.33984 25.414062 C 105.58884 25.410363 105.7872 25.203372 105.7832 24.951172 L 105.7793 24.650391 C 105.7753 24.398191 105.56931 24.197372 105.32031 24.201172 z M 63.365234 37.568359 L 63.365234 53.738281 L 79.365234 53.738281 L 79.365234 37.568359 L 63.365234 37.568359 z M 86.748047 37.568359 L 86.748047 40.800781 L 126.86523 40.800781 L 126.86523 37.568359 L 86.748047 37.568359 z M 86.748047 44.037109 L 86.748047 47.269531 L 126.86523 47.269531 L 126.86523 44.037109 L 86.748047 44.037109 z M 71.787109 112.99609 C 67.602609 112.99609 64.210937 116.44141 64.210938 120.69141 C 64.210938 124.94141 67.602609 128.38672 71.787109 128.38672 C 75.971709 128.38672 79.365234 124.94141 79.365234 120.69141 C 79.365234 116.44141 75.971709 112.99609 71.787109 112.99609 z M 86.748047 116.92773 L 86.748047 120.16016 L 126.86523 120.16016 L 126.86523 116.92773 L 86.748047 116.92773 z M 86.748047 123.39258 L 86.748047 126.62695 L 126.86523 126.62695 L 126.86523 123.39258 L 86.748047 123.39258 z M 71.787109 142.60156 C 67.602609 142.60156 64.210937 146.04687 64.210938 150.29688 C 64.210938 154.54688 67.602609 157.99023 71.787109 157.99023 C 75.971709 157.99023 79.365234 154.54688 79.365234 150.29688 C 79.365234 146.04688 75.971709 142.60156 71.787109 142.60156 z M 86.748047 145.53516 L 86.748047 148.76758 L 126.86523 148.76758 L 126.86523 145.53516 L 86.748047 145.53516 z M 86.748047 152.00195 L 86.748047 155.23438 L 126.86523 155.23438 L 126.86523 152.00195 L 86.748047 152.00195 z "
+     id="path50" />
+  <path
+     style="display:inline;fill:#d5d6d7"
+     inkscape:connector-curvature="0"
+     id="path56"
+     d="M 148.744,68.6655 H 45.619 v 33.5835 h 103.125 z" />
+  <path
+     style="display:inline;fill:#87c214"
+     d="m 97.822266,50.503906 v 5.722656 h 17.966794 v -5.722656 z m -11.074219,30.59961 v 3.232422 h 40.117183 v -3.232422 z m 0,6.46875 v 3.232422 h 40.117183 v -3.232422 z"
+     id="path58"
+     inkscape:connector-curvature="0" />
+  <path
+     style="display:inline;fill:#f5f5f5"
+     inkscape:connector-curvature="0"
+     id="path68"
+     d="m 66.8652,92.3143 c 4.1846,0 7.5768,-3.4451 7.5768,-7.695 0,-4.2498 -3.3922,-7.6949 -7.5768,-7.6949 -4.1846,0 -7.5768,3.4451 -7.5768,7.6949 0,4.2499 3.3922,7.695 7.5768,7.695 z" />
+  <path
+     style="display:inline;fill:#87c214"
+     inkscape:connector-curvature="0"
+     id="path70"
+     d="m 70.1296,90.0058 h -6.5738 c -0.3153,0.0024 -0.6253,0.0818 -0.9038,0.2312 -0.2784,0.1495 -0.5171,0.3647 -0.6956,0.6274 1.4766,0.8563 3.1474,1.3114 4.8498,1.321 1.7023,0.0096 3.3781,-0.4266 4.864,-1.2662 -0.1666,-0.265 -0.3932,-0.486 -0.6612,-0.6448 -0.2679,-0.1588 -0.5693,-0.2509 -0.8794,-0.2686 z" />
+  <path
+     style="display:inline;fill:#333333"
+     d="m 66.861328,80.746094 c -2.0798,0 -3.765625,1.70444 -3.765625,3.80664 0,0.393506 0.07586,0.766 0.185547,1.123047 -0.327549,0.812667 -0.821888,1.878261 -1.158203,1.708985 0,0 5.069822,4.4252 9.544922,0 -0.355198,-0.613452 -0.773279,-1.18389 -1.21875,-1.732422 0.10502,-0.350063 0.177734,-0.714879 0.177734,-1.09961 0,-2.1022 -1.685825,-3.80664 -3.765625,-3.80664 z"
+     id="path72"
+     inkscape:connector-curvature="0" />
+  <path
+     style="display:inline;fill:#fda57d"
+     d="m 66.861328,81.570312 c -1.800651,0 -3.302121,1.279176 -3.673828,2.986329 -0.0049,-3.79e-4 -0.0088,-0.0059 -0.01367,-0.0059 -0.1933,0 -0.349609,0.297063 -0.349609,0.664063 0,0.347156 0.141531,0.622551 0.320312,0.652344 0.180942,1.407599 1.108928,2.5691 2.38086,3.058593 v 0.732422 c 0,0.3234 0.127315,0.634681 0.353515,0.863281 0.2263,0.2287 0.533616,0.357422 0.853516,0.357422 h 0.224609 c 0.1588,3e-4 0.316091,-0.03245 0.462891,-0.09375 0.1467,-0.0613 0.280278,-0.150172 0.392578,-0.263672 0.1123,-0.1135 0.201119,-0.248084 0.261719,-0.396484 0.0606,-0.1483 0.0921,-0.30825 0.0918,-0.46875 v -0.720703 c 1.288752,-0.483775 2.232282,-1.654559 2.412109,-3.076172 0.168226,-0.0485 0.298828,-0.311757 0.298828,-0.644531 0,-0.363137 -0.153161,-0.655938 -0.34375,-0.66211 -0.373249,-1.705035 -1.87271,-2.982422 -3.671875,-2.982422 z"
+     id="path78"
+     inkscape:connector-curvature="0" />
+  <path
+     style="display:inline;fill:#333333"
+     inkscape:connector-curvature="0"
+     id="path84"
+     d="m 63.2529,83.9344 h 7.1792 c 0,0 -0.6122,-2.9296 -3.3275,-2.7401 -2.7154,0.1895 -3.8517,2.7401 -3.8517,2.7401 z" />
+  <defs
+     id="defs127">
+    <linearGradient
+       id="paint0_linear"
+       x1="10.0511"
+       y1="162.566"
+       x2="80.1467"
+       y2="-2.31086"
+       gradientUnits="userSpaceOnUse">
+      <stop
+         stop-color="#808080"
+         stop-opacity="0.25"
+         id="stop110" />
+      <stop
+         offset="0.54"
+         stop-color="#808080"
+         stop-opacity="0.12"
+         id="stop112" />
+      <stop
+         offset="1"
+         stop-color="#808080"
+         stop-opacity="0.1"
+         id="stop114" />
+    </linearGradient>
+    <linearGradient
+       id="paint1_linear"
+       x1="45488.3"
+       y1="16529.6"
+       x2="45488.3"
+       y2="10752.2"
+       gradientUnits="userSpaceOnUse">
+      <stop
+         stop-color="#808080"
+         stop-opacity="0.25"
+         id="stop117" />
+      <stop
+         offset="0.54"
+         stop-color="#808080"
+         stop-opacity="0.12"
+         id="stop119" />
+      <stop
+         offset="1"
+         stop-color="#808080"
+         stop-opacity="0.1"
+         id="stop121" />
+    </linearGradient>
+    <clipPath
+       id="clip0">
+      <rect
+         width="150"
+         height="178"
+         fill="white"
+         id="rect124" />
+    </clipPath>
+  </defs>
+</svg>

briar-android/build.gradle

@@ -118,6 +118,7 @@ dependencies {
 	implementation 'com.google.zxing:core:3.3.3'
 	implementation 'uk.co.samuelwall:material-tap-target-prompt:2.14.0'
 	implementation 'com.vanniktech:emoji-google:0.5.1'
+	implementation 'com.github.kobakei:MaterialFabSpeedDial:1.2.1' // later versions already use androidx
 	def glideVersion = '4.9.0'
 	implementation("com.github.bumptech.glide:glide:$glideVersion") {
 		exclude group: 'com.android.support'

briar-android/src/main/AndroidManifest.xml

@@ -425,5 +425,28 @@
 			android:launchMode="singleTask"
 			android:theme="@style/BriarTheme.NoActionBar"/>
 
+		<activity
+			android:name=".android.contact.add.remote.AddContactActivity"
+			android:theme="@style/BriarTheme"
+			android:label="@string/add_contact_remotely_title_case"
+			android:windowSoftInputMode="stateHidden|adjustResize">
+			<intent-filter>
+				<action android:name="android.intent.action.VIEW" />
+				<category android:name="android.intent.category.DEFAULT" />
+				<category android:name="android.intent.category.BROWSABLE" />
+				<data android:scheme="briar"/>
+			</intent-filter>
+			<intent-filter>
+				<action android:name="android.intent.action.SEND"/>
+				<category android:name="android.intent.category.DEFAULT"/>
+				<data android:mimeType="text/plain"/>
+			</intent-filter>
+		</activity>
+
+		<activity
+			android:name=".android.contact.add.remote.PendingRequestsActivity"
+			android:label="@string/pending_contact_requests"
+			android:theme="@style/BriarTheme"/>
+
 	</application>
 </manifest>

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

@@ -15,8 +15,12 @@ import org.briarproject.briar.android.blog.ReblogFragment;
 import org.briarproject.briar.android.blog.RssFeedImportActivity;
 import org.briarproject.briar.android.blog.RssFeedManageActivity;
 import org.briarproject.briar.android.blog.WriteBlogPostActivity;
+import org.briarproject.briar.android.contact.add.remote.AddContactActivity;
+import org.briarproject.briar.android.contact.add.remote.LinkExchangeFragment;
 import org.briarproject.briar.android.contact.ContactListFragment;
 import org.briarproject.briar.android.contact.ContactModule;
+import org.briarproject.briar.android.contact.add.remote.NicknameFragment;
+import org.briarproject.briar.android.contact.add.remote.PendingRequestsActivity;
 import org.briarproject.briar.android.conversation.AliasDialogFragment;
 import org.briarproject.briar.android.conversation.ConversationActivity;
 import org.briarproject.briar.android.conversation.ImageActivity;
@@ -168,6 +172,10 @@ public interface ActivityComponent {
 
 	void inject(UnlockActivity activity);
 
+	void inject(AddContactActivity activity);
+
+	void inject(PendingRequestsActivity activity);
+
 	// Fragments
 	void inject(AuthorNameFragment fragment);
 
@@ -191,6 +199,10 @@ public interface ActivityComponent {
 
 	void inject(KeyAgreementFragment fragment);
 
+	void inject(LinkExchangeFragment fragment);
+
+	void inject(NicknameFragment fragment);
+
 	void inject(ContactChooserFragment fragment);
 
 	void inject(ShareForumFragment fragment);

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

@@ -3,22 +3,24 @@ package org.briarproject.briar.android.contact;
 import android.content.Intent;
 import android.os.Bundle;
 import android.support.annotation.UiThread;
+import android.support.design.widget.FloatingActionButton;
+import android.support.design.widget.Snackbar;
 import android.support.v4.app.ActivityCompat;
 import android.support.v4.app.ActivityOptionsCompat;
+import android.support.v4.content.ContextCompat;
 import android.support.v4.util.Pair;
 import android.support.v7.widget.LinearLayoutManager;
 import android.view.LayoutInflater;
-import android.view.Menu;
-import android.view.MenuInflater;
-import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.TextView;
 
 import org.briarproject.bramble.api.contact.Contact;
 import org.briarproject.bramble.api.contact.ContactId;
 import org.briarproject.bramble.api.contact.ContactManager;
 import org.briarproject.bramble.api.contact.event.ContactAddedEvent;
 import org.briarproject.bramble.api.contact.event.ContactRemovedEvent;
+import org.briarproject.bramble.api.contact.event.PendingContactStateChangedEvent;
 import org.briarproject.bramble.api.db.DbException;
 import org.briarproject.bramble.api.db.NoSuchContactException;
 import org.briarproject.bramble.api.event.Event;
@@ -32,6 +34,8 @@ import org.briarproject.bramble.api.plugin.event.ContactDisconnectedEvent;
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.activity.ActivityComponent;
 import org.briarproject.briar.android.contact.BaseContactListAdapter.OnContactClickListener;
+import org.briarproject.briar.android.contact.add.remote.AddContactActivity;
+import org.briarproject.briar.android.contact.add.remote.PendingRequestsActivity;
 import org.briarproject.briar.android.conversation.ConversationActivity;
 import org.briarproject.briar.android.fragment.BaseFragment;
 import org.briarproject.briar.android.keyagreement.ContactExchangeActivity;
@@ -49,11 +53,16 @@ import java.util.logging.Logger;
 import javax.annotation.Nullable;
 import javax.inject.Inject;
 
+import io.github.kobakei.materialfabspeeddial.FabSpeedDial;
+import io.github.kobakei.materialfabspeeddial.FabSpeedDial.OnMenuItemClickListener;
+
 import static android.os.Build.VERSION.SDK_INT;
+import static android.support.design.widget.Snackbar.LENGTH_INDEFINITE;
 import static android.support.v4.app.ActivityOptionsCompat.makeSceneTransitionAnimation;
 import static android.support.v4.view.ViewCompat.getTransitionName;
 import static java.util.Objects.requireNonNull;
 import static java.util.logging.Level.WARNING;
+import static org.briarproject.bramble.api.contact.PendingContactState.WAITING_FOR_CONNECTION;
 import static org.briarproject.bramble.util.LogUtils.logDuration;
 import static org.briarproject.bramble.util.LogUtils.logException;
 import static org.briarproject.bramble.util.LogUtils.now;
@@ -62,7 +71,8 @@ import static org.briarproject.briar.android.util.UiUtils.isSamsung7;
 
 @MethodsNotNullByDefault
 @ParametersNotNullByDefault
-public class ContactListFragment extends BaseFragment implements EventListener {
+public class ContactListFragment extends BaseFragment implements EventListener,
+		OnMenuItemClickListener {
 
 	public static final String TAG = ContactListFragment.class.getName();
 	private static final Logger LOG = Logger.getLogger(TAG);
@@ -76,6 +86,7 @@ public class ContactListFragment extends BaseFragment implements EventListener {
 
 	private ContactListAdapter adapter;
 	private BriarRecyclerView list;
+	private Snackbar snackbar;
 
 	// Fields that are accessed from background threads must be volatile
 	@Inject
@@ -107,7 +118,12 @@ public class ContactListFragment extends BaseFragment implements EventListener {
 			@Nullable Bundle savedInstanceState) {
 		requireNonNull(getActivity()).setTitle(R.string.contact_list_button);
 
-		View contentView = inflater.inflate(R.layout.list, container, false);
+		View contentView =
+				inflater.inflate(R.layout.fragment_contact_list, container,
+						false);
+
+		FabSpeedDial speedDialView = contentView.findViewById(R.id.speedDial);
+		speedDialView.addOnMenuItemClickListener(this);
 
 		OnContactClickListener<ContactListItem> onContactClickListener =
 				(view, item) -> {
@@ -146,26 +162,30 @@ public class ContactListFragment extends BaseFragment implements EventListener {
 		list.setEmptyText(getString(R.string.no_contacts));
 		list.setEmptyAction(getString(R.string.no_contacts_action));
 
-		return contentView;
-	}
+		// TODO UiUtils helper method?
+		snackbar = Snackbar.make(contentView,
+				R.string.pending_contact_requests_snackbar, LENGTH_INDEFINITE);
+		snackbar.getView().setBackgroundResource(R.color.briar_primary);
+		snackbar.setAction(R.string.show, v -> startActivity(