Bump version to 4.78.2

Co-authored-by: Alan Evans <alan@signal.org>

.github/workflows/android.yml

@@ -22,7 +22,7 @@ jobs:
         java-version: 1.8
 
     - name: Install NDK
-      run: echo "y" | sudo /usr/local/lib/android/sdk/tools/bin/sdkmanager --install "ndk;20.0.5594570" --sdk_root=${ANDROID_SDK_ROOT}
+      run: echo "y" | sudo /usr/local/lib/android/sdk/tools/bin/sdkmanager --install "ndk;21.0.6113669" --sdk_root=${ANDROID_SDK_ROOT}
 
     - name: Validate Gradle Wrapper
       uses: gradle/wrapper-validation-action@v1

.gitignore

@@ -1,6 +1,8 @@
 .classpath
 captures/
 project.properties
+keystore.debug.properties
+keystore.staging.properties
 .project
 .settings
 bin/

app/build.gradle

@@ -11,13 +11,15 @@ buildscript {
         jcenter {
             content {
                 includeVersion 'org.jetbrains.trove4j', 'trove4j', '20160824'
+                includeGroupByRegex "com\\.archinamon.*"
             }
         }
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.6.3'
+        classpath 'com.android.tools.build:gradle:4.0.2'
         classpath 'androidx.navigation:navigation-safe-args-gradle-plugin:2.1.0'
         classpath 'com.google.protobuf:protobuf-gradle-plugin:0.8.10'
+        classpath 'com.archinamon:android-gradle-aspectj:4.2.0'
     }
 }
 
@@ -25,9 +27,22 @@ apply plugin: 'com.android.application'
 apply plugin: 'com.google.protobuf'
 apply plugin: 'androidx.navigation.safeargs'
 apply plugin: 'witness'
+apply plugin: 'com.archinamon.aspectj-ext'
 apply from: 'translations.gradle'
 apply from: 'witness-verifications.gradle'
 
+if (getGradle().getStartParameter().getTaskRequests().toString().contains("Internal")) {
+    aspectj {
+        includeJar 'sqlcipher'
+        includeAspectsFromJar 'Signal-Android'
+        java = JavaVersion.VERSION_1_8
+    }
+} else if (getGradle().getStartParameter().getTaskRequests().toString().contains("Test")) {
+    aspectj {
+        compileTests = false
+    }
+}
+
 repositories {
     maven {
         url "https://raw.github.com/signalapp/maven/master/photoview/releases/"
@@ -80,8 +95,8 @@ protobuf {
     }
 }
 
-def canonicalVersionCode = 723
-def canonicalVersionName = "4.74.2"
+def canonicalVersionCode = 743
+def canonicalVersionName = "4.78.2"
 
 def postFixSize = 10
 def abiPostFix = ['universal'   : 0,
@@ -90,10 +105,12 @@ def abiPostFix = ['universal'   : 0,
                   'x86'         : 3,
                   'x86_64'      : 4]
 
+def keystores = [ 'debug'  : loadKeystoreProperties('keystore.debug.properties') ]
+
 android {
-    flavorDimensions "none"
-    compileSdkVersion 29
-    buildToolsVersion '29.0.3'
+    flavorDimensions 'distribution', 'environment'
+    compileSdkVersion 30
+    buildToolsVersion '30.0.2'
     useLibrary 'org.apache.http.legacy'
 
     dexOptions {
@@ -101,11 +118,13 @@ android {
     }
 
     signingConfigs {
-        staging {
-            storeFile file("${project.rootDir}/dev.keystore")
-            storePassword 'android'
-            keyAlias 'staging'
-            keyPassword 'android'
+        if (keystores.debug != null) {
+            debug {
+                storeFile file("${project.rootDir}/${keystores.debug.storeFile}")
+                storePassword keystores.debug.storePassword
+                keyAlias keystores.debug.keyAlias
+                keyPassword keystores.debug.keyPassword
+            }
         }
     }
 
@@ -114,7 +133,7 @@ android {
         versionName canonicalVersionName
 
         minSdkVersion 19
-        targetSdkVersion 29
+        targetSdkVersion 30
         multiDexEnabled true
 
         vectorDrawables.useSupportLibrary = true
@@ -140,6 +159,7 @@ android {
         buildConfigField "String", "ZKGROUP_SERVER_PUBLIC_PARAMS", "\"AMhf5ywVwITZMsff/eCyudZx9JDmkkkbV6PInzG4p8x3VqVJSFiMvnvlEKWuRob/1eaIetR31IYeAbm0NdOuHH8Qi+Rexi1wLlpzIo1gstHWBfZzy1+qHRV5A4TqPp15YzBPm0WSggW6PbSn+F4lf57VCnHF7p8SvzAA2ZZJPYJURt8X7bbg+H3i+PEjH9DXItNEqs2sNcug37xZQDLm7X0=\""
         buildConfigField "String[]", "LANGUAGES", "new String[]{\"" + autoResConfig().collect { s -> s.replace('-r', '_') }.join('", "') + '"}'
         buildConfigField "int", "CANONICAL_VERSION_CODE", "$canonicalVersionCode"
+        buildConfigField "int", "TRACE_EVENT_MAX", "2000"
 
         ndk {
             abiFilters 'armeabi-v7a', 'arm64-v8a', 'x86', 'x86_64'
@@ -180,6 +200,10 @@ android {
 
     buildTypes {
         debug {
+            if (keystores['debug'] != null) {
+                signingConfig signingConfigs.debug
+            }
+            isDefault true
             minifyEnabled true
             proguardFiles getDefaultProguardFile('proguard-android.txt'),
                     'proguard/proguard-firebase-messaging.pro',
@@ -203,27 +227,9 @@ android {
             testProguardFiles 'proguard/proguard-automation.pro',
                     'proguard/proguard.cfg'
         }
-        staging {
-            initWith debug
-            applicationIdSuffix ".staging"
-            signingConfig signingConfigs.staging
-
-            buildConfigField "String", "SIGNAL_URL", "\"https://textsecure-service-staging.whispersystems.org\""
-            buildConfigField "String", "STORAGE_URL", "\"https://storage-staging.signal.org\""
-            buildConfigField "String", "SIGNAL_CDN_URL", "\"https://cdn-staging.signal.org\""
-            buildConfigField "String", "SIGNAL_CDN2_URL", "\"https://cdn2-staging.signal.org\""
-            buildConfigField "String", "SIGNAL_CONTACT_DISCOVERY_URL", "\"https://api-staging.directory.signal.org\""
-            buildConfigField "String", "SIGNAL_KEY_BACKUP_URL", "\"https://api-staging.backup.signal.org\""
-            buildConfigField "String", "CDS_MRENCLAVE", "\"bd123560b01c8fa92935bc5ae15cd2064e5c45215f23f0bd40364d521329d2ad\""
-            buildConfigField "KbsEnclave", "KBS_ENCLAVE", "new KbsEnclave(\"823a3b2c037ff0cbe305cc48928cfcc97c9ed4a8ca6d49af6f7d6981fb60a4e9\", " +
-                                                                         "\"038c40bbbacdc873caa81ac793bb75afde6dfe436a99ab1f15e3f0cbb7434ced\", " +
-                                                                         "\"a3baab19ef6ce6f34ab9ebb25ba722725ae44a8872dc0ff08ad6d83a9489de87\")"
-            buildConfigField "KbsEnclave[]", "KBS_FALLBACKS", "new KbsEnclave[0]"
-            buildConfigField "String", "UNIDENTIFIED_SENDER_TRUST_ROOT", "\"BbqY1DzohE4NUZoVF+L18oUPrK3kILllLEJh2UnPSsEx\""
-            buildConfigField "String", "ZKGROUP_SERVER_PUBLIC_PARAMS", "\"ABSY21VckQcbSXVNCGRYJcfWHiAMZmpTtTELcDmxgdFbtp/bWsSxZdMKzfCp8rvIs8ocCU3B37fT3r4Mi5qAemeGeR2X+/YmOGR5ofui7tD5mDQfstAI9i+4WpMtIe8KC3wU5w3Inq3uNWVmoGtpKndsNfwJrCg0Hd9zmObhypUnSkfYn2ooMOOnBpfdanRtrvetZUayDMSC5iSRcXKpdls=\""
-        }
         flipper {
             initWith debug
+            isDefault false
             minifyEnabled false
         }
         release {
@@ -234,18 +240,53 @@ android {
 
     productFlavors {
         play {
-            dimension "none"
+            dimension 'distribution'
+            isDefault true
             ext.websiteUpdateUrl = "null"
             buildConfigField "boolean", "PLAY_STORE_DISABLED", "false"
             buildConfigField "String", "NOPLAY_UPDATE_URL", "$ext.websiteUpdateUrl"
         }
 
         website {
-            dimension "none"
+            dimension 'distribution'
             ext.websiteUpdateUrl = "https://updates.signal.org/android"
             buildConfigField "boolean", "PLAY_STORE_DISABLED", "true"
             buildConfigField "String", "NOPLAY_UPDATE_URL", "\"$ext.websiteUpdateUrl\""
         }
+
+        internal {
+            dimension 'distribution'
+            ext.websiteUpdateUrl = "null"
+            buildConfigField "boolean", "PLAY_STORE_DISABLED", "false"
+            buildConfigField "String", "NOPLAY_UPDATE_URL", "$ext.websiteUpdateUrl"
+            buildConfigField "int", "TRACE_EVENT_MAX", "30_000"
+        }
+
+        prod {
+            dimension 'environment'
+
+            isDefault true
+        }
+
+        staging {
+            dimension 'environment'
+
+            applicationIdSuffix ".staging"
+
+            buildConfigField "String", "SIGNAL_URL", "\"https://textsecure-service-staging.whispersystems.org\""
+            buildConfigField "String", "STORAGE_URL", "\"https://storage-staging.signal.org\""
+            buildConfigField "String", "SIGNAL_CDN_URL", "\"https://cdn-staging.signal.org\""
+            buildConfigField "String", "SIGNAL_CDN2_URL", "\"https://cdn2-staging.signal.org\""
+            buildConfigField "String", "SIGNAL_CONTACT_DISCOVERY_URL", "\"https://api-staging.directory.signal.org\""
+            buildConfigField "String", "SIGNAL_KEY_BACKUP_URL", "\"https://api-staging.backup.signal.org\""
+            buildConfigField "String", "CDS_MRENCLAVE", "\"c98e00a4e3ff977a56afefe7362a27e4961e4f19e211febfbb19b897e6b80b15\""
+            buildConfigField "KbsEnclave", "KBS_ENCLAVE", "new KbsEnclave(\"823a3b2c037ff0cbe305cc48928cfcc97c9ed4a8ca6d49af6f7d6981fb60a4e9\", " +
+                                                                         "\"038c40bbbacdc873caa81ac793bb75afde6dfe436a99ab1f15e3f0cbb7434ced\", " +
+                                                                         "\"a3baab19ef6ce6f34ab9ebb25ba722725ae44a8872dc0ff08ad6d83a9489de87\")"
+            buildConfigField "KbsEnclave[]", "KBS_FALLBACKS", "new KbsEnclave[0]"
+            buildConfigField "String", "UNIDENTIFIED_SENDER_TRUST_ROOT", "\"BbqY1DzohE4NUZoVF+L18oUPrK3kILllLEJh2UnPSsEx\""
+            buildConfigField "String", "ZKGROUP_SERVER_PUBLIC_PARAMS", "\"ABSY21VckQcbSXVNCGRYJcfWHiAMZmpTtTELcDmxgdFbtp/bWsSxZdMKzfCp8rvIs8ocCU3B37fT3r4Mi5qAemeGeR2X+/YmOGR5ofui7tD5mDQfstAI9i+4WpMtIe8KC3wU5w3Inq3uNWVmoGtpKndsNfwJrCg0Hd9zmObhypUnSkfYn2ooMOOnBpfdanRtrvetZUayDMSC5iSRcXKpdls=\""
+        }
     }
 
     android.applicationVariants.all { variant ->
@@ -276,27 +317,28 @@ android {
 dependencies {
     lintChecks project(':lintchecks')
 
-    implementation('androidx.appcompat:appcompat:1.1.0-beta01') {
+    implementation ('androidx.appcompat:appcompat:1.2.0') {
         force = true
     }
-    implementation 'androidx.recyclerview:recyclerview:1.0.0'
-    implementation 'com.google.android.material:material:1.1.0'
+    implementation 'androidx.recyclerview:recyclerview:1.1.0'
+    implementation 'com.google.android.material:material:1.2.1'
     implementation 'androidx.legacy:legacy-support-v13:1.0.0'
     implementation 'androidx.cardview:cardview:1.0.0'
     implementation 'androidx.preference:preference:1.0.0'
     implementation 'androidx.legacy:legacy-preference-v14:1.0.0'
     implementation 'androidx.gridlayout:gridlayout:1.0.0'
     implementation 'androidx.exifinterface:exifinterface:1.0.0'
-    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
+    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
     implementation 'androidx.multidex:multidex:2.0.1'
     implementation 'androidx.navigation:navigation-fragment:2.1.0'
     implementation 'androidx.navigation:navigation-ui:2.1.0'
     implementation 'androidx.lifecycle:lifecycle-extensions:2.1.0'
     implementation 'androidx.lifecycle:lifecycle-viewmodel-savedstate:1.0.0-alpha05'
     implementation 'androidx.lifecycle:lifecycle-common-java8:2.1.0'
-    implementation "androidx.camera:camera-core:1.0.0-beta01"
-    implementation "androidx.camera:camera-camera2:1.0.0-beta01"
-    implementation "androidx.camera:camera-lifecycle:1.0.0-beta01"
+    implementation "androidx.camera:camera-core:1.0.0-beta11"
+    implementation "androidx.camera:camera-camera2:1.0.0-beta11"
+    implementation "androidx.camera:camera-lifecycle:1.0.0-beta11"
+    implementation "androidx.camera:camera-view:1.0.0-alpha18"
     implementation "androidx.concurrent:concurrent-futures:1.0.0"
     implementation "androidx.autofill:autofill:1.0.0"
     implementation "androidx.paging:paging-common:2.1.2"
@@ -322,10 +364,11 @@ dependencies {
 
     implementation project(':libsignal-service')
     implementation 'org.signal:zkgroup-android:0.7.0'
-
+    implementation 'org.whispersystems:signal-client-android:0.1.3'
+    implementation 'com.google.protobuf:protobuf-javalite:3.10.0'
     implementation 'org.signal:argon2:13.1@aar'
 
-    implementation 'org.signal:ringrtc-android:2.7.0'
+    implementation 'org.signal:ringrtc-android:2.8.0'
 
     implementation "me.leolin:ShortcutBadger:1.1.16"
     implementation 'se.emilsjolander:stickylistheaders:2.7.0'
@@ -397,10 +440,9 @@ dependencies {
 }
 
 dependencyVerification {
-    configuration = '(play|website)(Debug|Release)RuntimeClasspath'
+    configuration = '(play|website)(Prod|Staging)(Debug|Release)RuntimeClasspath'
 }
 
-
 def assembleWebsiteDescriptor = { variant, file ->
     if (file.exists()) {
         MessageDigest md = MessageDigest.getInstance("SHA-256");
@@ -444,13 +486,19 @@ def signProductionRelease = { variant ->
 
 task signProductionPlayRelease {
     doLast {
-        signProductionRelease(android.applicationVariants.find { (it.name == 'playRelease') })
+        signProductionRelease(android.applicationVariants.find { (it.name == 'playProdRelease') })
+    }
+}
+
+task signProductionInternalRelease {
+    doLast {
+        signProductionRelease(android.applicationVariants.find { (it.name == 'internalProdRelease') })
     }
 }
 
 task signProductionWebsiteRelease {
     doLast {
-        def  variant       = android.applicationVariants.find { (it.name == 'websiteRelease') }
+        def  variant       = android.applicationVariants.find { (it.name == 'websiteProdRelease') }
         File signedRelease = signProductionRelease(variant).find { it.name.contains('universal') }
         assembleWebsiteDescriptor(variant, signedRelease)
     }
@@ -477,3 +525,14 @@ tasks.withType(Test) {
         showStackTraces true
     }
 }
+
+def loadKeystoreProperties(filename) {
+    def keystorePropertiesFile = file("${project.rootDir}/${filename}")
+    if (keystorePropertiesFile.exists()) {
+        def keystoreProperties = new Properties()
+        keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
+        return keystoreProperties;
+    } else {
+        return null;
+    }
+}

app/src/flipper/res/values/strings.xml

@@ -1,4 +0,0 @@
-<?xml version='1.0' encoding='UTF-8'?>
-<resources>
-  <string name="app_name">Signal (Flipper)</string>
-</resources>

app/src/internal/java/org/thoughtcrime/securesms/tracing/TraceAspect.java

@@ -0,0 +1,103 @@
+package org.thoughtcrime.securesms.tracing;
+
+import androidx.annotation.NonNull;
+
+import org.aspectj.lang.ProceedingJoinPoint;
+import org.aspectj.lang.annotation.Around;
+import org.aspectj.lang.annotation.Aspect;
+import org.aspectj.lang.annotation.Pointcut;
+import org.thoughtcrime.securesms.logging.Log;
+
+/**
+ * Uses AspectJ to augment relevant methods to be traced with the {@link TracerImpl}.
+ */
+@Aspect
+public class TraceAspect {
+
+  @Pointcut("within(@org.thoughtcrime.securesms.tracing.Trace *)")
+  public void withinAnnotatedClass() {}
+
+  @Pointcut("execution(!synthetic * *(..)) && withinAnnotatedClass()")
+  public void methodInsideAnnotatedType() {}
+
+  @Pointcut("execution(!synthetic *.new(..)) && withinAnnotatedClass()")
+  public void constructorInsideAnnotatedType() {}
+
+  @Pointcut("execution(@org.thoughtcrime.securesms.tracing.Trace * *(..)) || methodInsideAnnotatedType()")
+  public void annotatedMethod() {}
+
+  @Pointcut("execution(@org.thoughtcrime.securesms.tracing.Trace *.new(..)) || constructorInsideAnnotatedType()")
+  public void annotatedConstructor() {}
+
+  @Pointcut("execution(* *(..)) && within(net.sqlcipher.database.*)")
+  public void sqlcipher() {}
+
+  @Pointcut("execution(* net.sqlcipher.database.SQLiteDatabase.rawQuery(..))             || " +
+            "execution(* net.sqlcipher.database.SQLiteDatabase.query(..))                || " +
+            "execution(* net.sqlcipher.database.SQLiteDatabase.insert(..))               || " +
+            "execution(* net.sqlcipher.database.SQLiteDatabase.insertOrThrow(..))        || " +
+            "execution(* net.sqlcipher.database.SQLiteDatabase.insertWithOnConflict(..)) || " +
+            "execution(* net.sqlcipher.database.SQLiteDatabase.delete(..))               || " +
+            "execution(* net.sqlcipher.database.SQLiteDatabase.update(..))")
+  public void sqlcipherQuery() {}
+
+  @Around("annotatedMethod() || annotatedConstructor() || (sqlcipher() && !sqlcipherQuery())")
+  public @NonNull Object profile(@NonNull ProceedingJoinPoint joinPoint) throws Throwable {
+    String methodName = joinPoint.getSignature().toShortString();
+
+    Tracer.getInstance().start(methodName);
+    Object result = joinPoint.proceed();
+    Tracer.getInstance().end(methodName);
+    return result;
+  }
+
+  @Around("sqlcipherQuery()")
+  public @NonNull Object profileQuery(@NonNull ProceedingJoinPoint joinPoint) throws Throwable {
+    String table;
+    String query;
+
+    if (joinPoint.getSignature().getName().equals("query")) {
+      if (joinPoint.getArgs().length == 9) {
+        table = (String) joinPoint.getArgs()[1];
+        query = (String) joinPoint.getArgs()[3];
+      } else if (joinPoint.getArgs().length == 7 || joinPoint.getArgs().length == 8) {
+        table = (String) joinPoint.getArgs()[0];
+        query = (String) joinPoint.getArgs()[2];
+      } else {
+        table = "N/A";
+        query = "N/A";
+      }
+    } else if (joinPoint.getSignature().getName().equals("rawQuery")) {
+      table = "";
+      query = (String) joinPoint.getArgs()[0];
+    } else if (joinPoint.getSignature().getName().equals("insert")) {
+      table = (String) joinPoint.getArgs()[0];
+      query = "";
+    } else if (joinPoint.getSignature().getName().equals("insertOrThrow")) {
+      table = (String) joinPoint.getArgs()[0];
+      query = "";
+    } else if (joinPoint.getSignature().getName().equals("insertWithOnConflict")) {
+      table = (String) joinPoint.getArgs()[0];
+      query = "";
+    } else if (joinPoint.getSignature().getName().equals("delete")) {
+      table = (String) joinPoint.getArgs()[0];
+      query = (String) joinPoint.getArgs()[1];
+    } else if (joinPoint.getSignature().getName().equals("update")) {
+      table = (String) joinPoint.getArgs()[0];
+      query = (String) joinPoint.getArgs()[2];
+    } else {
+      table = "N/A";
+      query = "N/A";
+    }
+
+    query = query == null ? "null" : query;
+    query = "[" + table + "] " + query;
+
+    String methodName = joinPoint.getSignature().toShortString();
+
+    Tracer.getInstance().start(methodName, "query", query);
+    Object result = joinPoint.proceed();
+    Tracer.getInstance().end(methodName);
+    return result;
+  }
+}

app/src/internal/java/org/thoughtcrime/securesms/tracing/TracerImpl.java

@@ -0,0 +1,193 @@
+package org.thoughtcrime.securesms.tracing;
+
+import android.os.SystemClock;
+import androidx.annotation.NonNull;
+
+import com.google.protobuf.ByteString;
+
+import org.thoughtcrime.securesms.BuildConfig;
+import org.thoughtcrime.securesms.trace.TraceProtos;
+import org.thoughtcrime.securesms.trace.TraceProtos.Trace;
+import org.thoughtcrime.securesms.trace.TraceProtos.TracePacket;
+import org.thoughtcrime.securesms.trace.TraceProtos.TrackDescriptor;
+import org.thoughtcrime.securesms.trace.TraceProtos.TrackEvent;
+import org.whispersystems.signalservice.api.util.UuidUtil;
+
+import java.util.Map;
+import java.util.Queue;
+import java.util.UUID;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentLinkedQueue;
+import java.util.concurrent.atomic.AtomicInteger;
+
+/**
+ * A class to create Perfetto-compatible traces. Currently keeps the entire trace in memory to
+ * avoid weirdness with synchronizing to disk.
+ *
+ * Some general info on how the Perfetto format works:
+ * - The file format is just a Trace proto (see Trace.proto)
+ * - The Trace proto is just a series of TracePackets
+ * - TracePackets can describe:
+ *   - Threads
+ *   - Start of a method
+ *   - End of a method
+ *   - (And a bunch of other stuff that's not relevant to use at this point)
+ *
+ * We keep a circular buffer of TracePackets for method calls, and we keep a separate list of
+ * TracePackets for threads so we don't lose any of those.
+ *
+ * Serializing is just a matter of throwing all the TracePackets we have into a proto.
+ *
+ * Note: This class aims to be largely-thread-safe, but prioritizes speed and memory efficiency
+ * above all else. These methods are going to be called very quickly from every thread imaginable,
+ * and we want to create as little overhead as possible. The idea being that it's ok if we don't,
+ * for example, keep a perfect circular buffer size if it allows us to reduce overhead. The only
+ * cost of screwing up would be dropping a trace packet or something, which, while sad, won't affect
+ * how the app functions.
+ */
+public final class TracerImpl implements Tracer {
+
+  private static final int    TRUSTED_SEQUENCE_ID    = 1;
+  private static final byte[] SYNCHRONIZATION_MARKER = UuidUtil.toByteArray(UUID.fromString("82477a76-b28d-42ba-81dc-33326d57a079"));
+
+  private final Clock                  clock;
+  private final Map<Long, TracePacket> threadPackets;
+  private final Queue<TracePacket>     eventPackets;
+  private final AtomicInteger          eventCount;
+
+  TracerImpl() {
+    this.clock         = SystemClock::elapsedRealtimeNanos;
+    this.threadPackets = new ConcurrentHashMap<>();
+    this.eventPackets  = new ConcurrentLinkedQueue<>();
+    this.eventCount    = new AtomicInteger(0);
+  }
+
+  @Override
+  public boolean isEnabled() {
+    return true;
+  }
+
+  @Override
+  public void start(@NonNull String methodName) {
+    long   time          = clock.getTimeNanos();
+    Thread currentThread = Thread.currentThread();
+
+    if (!threadPackets.containsKey(currentThread.getId())) {
+      threadPackets.put(currentThread.getId(), forThread(currentThread));
+    }
+
+    addPacket(forMethodStart(methodName, time, currentThread.getId()));
+  }
+
+  @Override
+  public void start(@NonNull String methodName, @NonNull String key, @NonNull String value) {
+    long   time          = clock.getTimeNanos();
+    Thread currentThread = Thread.currentThread();
+
+    if (!threadPackets.containsKey(currentThread.getId())) {
+      threadPackets.put(currentThread.getId(), forThread(currentThread));
+    }
+
+    addPacket(forMethodStart(methodName, time, currentThread.getId(), key, value));
+  }
+
+  @Override
+  public void end(@NonNull String methodName) {
+    addPacket(forMethodEnd(methodName, clock.getTimeNanos(), Thread.currentThread().getId()));
+  }
+
+  public @NonNull byte[] serialize() {
+    Trace.Builder trace = Trace.newBuilder();
+
+    for (TracePacket thread : threadPackets.values()) {
+      trace.addPacket(thread);
+    }
+
+    for (TracePacket event : eventPackets) {
+      trace.addPacket(event);
+    }
+
+    trace.addPacket(forSynchronization(clock.getTimeNanos()));
+
+    return trace.build().toByteArray();
+  }
+
+  /**
+   * Attempts to add a packet to our list while keeping the size of our circular buffer in-check.
+   * The tracking of the event count is not perfectly thread-safe, but doing it in a thread-safe
+   * way would likely involve adding a lock, which we really don't want to do, since it'll add
+   * unnecessary overhead.
+   *
+   * Note that we keep track of the event count separately because
+   * {@link ConcurrentLinkedQueue#size()} is NOT a constant-time operation.
+   */
+  private void addPacket(@NonNull TracePacket packet) {
+    eventPackets.add(packet);
+
+    int size = eventCount.incrementAndGet();
+
+    for (int i = size; i > BuildConfig.TRACE_EVENT_MAX; i--) {
+      eventPackets.poll();
+      eventCount.decrementAndGet();
+    }
+  }
+
+  private static TracePacket forThread(@NonNull Thread thread) {
+    return TracePacket.newBuilder()
+                      .setTrustedPacketSequenceId(TRUSTED_SEQUENCE_ID)
+                      .setTrackDescriptor(TrackDescriptor.newBuilder()
+                                                         .setUuid(thread.getId())
+                                                         .setName(thread.getName()))
+                      .build();
+
+  }
+
+  private static TracePacket forMethodStart(@NonNull String name, long time, long threadId) {
+    return TracePacket.newBuilder()
+                      .setTrustedPacketSequenceId(TRUSTED_SEQUENCE_ID)
+                      .setTimestamp(time)
+                      .setTrackEvent(TrackEvent.newBuilder()
+                                               .setTrackUuid(threadId)
+                                               .setName(name)
+                                               .setType(TrackEvent.Type.TYPE_SLICE_BEGIN))
+                      .build();
+  }
+
+  private static TracePacket forMethodStart(@NonNull String name, long time, long threadId, @NonNull String key, @NonNull String value) {
+    return TracePacket.newBuilder()
+                      .setTrustedPacketSequenceId(TRUSTED_SEQUENCE_ID)
+                      .setTimestamp(time)
+                      .setTrackEvent(TrackEvent.newBuilder()
+                                               .setTrackUuid(threadId)
+                                               .setName(name)
+                                               .setType(TrackEvent.Type.TYPE_SLICE_BEGIN)
+                                               .addDebugAnnotations(TraceProtos.DebugAnnotation.newBuilder()
+                                                                                               .setName(key)
+                                                                                               .setStringValue(value)
+                                                                                               .build()))
+                      .build();
+  }
+
+  private static TracePacket forMethodEnd(@NonNull String name, long time, long threadId) {
+    return TracePacket.newBuilder()
+                      .setTrustedPacketSequenceId(TRUSTED_SEQUENCE_ID)
+                      .setTimestamp(time)
+                      .setTrackEvent(TrackEvent.newBuilder()
+                                               .setTrackUuid(threadId)
+                                               .setName(name)
+                                               .setType(TrackEvent.Type.TYPE_SLICE_END))
+                      .build();
+  }
+
+  private static TracePacket forSynchronization(long time) {
+    return TracePacket.newBuilder()
+                      .setTrustedPacketSequenceId(TRUSTED_SEQUENCE_ID)
+                      .setTimestamp(time)
+                      .setSynchronizationMarker(ByteString.copyFrom(SYNCHRONIZATION_MARKER))
+                      .build();
+  }
+
+  private interface Clock {
+    long getTimeNanos();
+  }
+}

app/src/internal/proto/Trace.proto

@@ -0,0 +1,151 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+syntax = "proto2";
+
+package signal;
+
+option java_package         = "org.thoughtcrime.securesms.trace";
+option java_outer_classname = "TraceProtos";
+
+/*
+ * Minimal interface needed to work with Perfetto.
+ *
+ * https://cs.android.com/android/platform/superproject/+/master:external/perfetto/protos/perfetto/trace/trace.proto
+ */
+message Trace {
+  repeated TracePacket packet = 1;
+}
+
+message TracePacket {
+  optional uint64 timestamp          = 8;
+  optional uint32 timestamp_clock_id = 58;
+
+  oneof data {
+    TrackEvent      track_event            = 11;
+    TrackDescriptor track_descriptor       = 60;
+    bytes           synchronization_marker = 36;
+  }
+
+  oneof optional_trusted_packet_sequence_id {
+    uint32 trusted_packet_sequence_id = 10;
+  }
+}
+
+message TrackEvent {
+  repeated uint64 category_iids = 3;
+  repeated string categories    = 22;
+
+  repeated DebugAnnotation debug_annotations = 4;
+
+  oneof name_field {
+    uint64 name_iid = 10;
+  string name     = 23;
+  }
+
+  enum Type {
+    TYPE_UNSPECIFIED = 0;
+    TYPE_SLICE_BEGIN = 1;
+    TYPE_SLICE_END   = 2;
+    TYPE_INSTANT     = 3;
+    TYPE_COUNTER     = 4;
+  }
+
+  optional Type   type          = 9;
+  optional uint64 track_uuid    = 11;
+  optional int64  counter_value = 30;
+
+  oneof timestamp {
+    int64 timestamp_delta_us    = 1;
+    int64 timestamp_absolute_us = 16;
+  }
+
+  oneof thread_time {
+    int64 thread_time_delta_us    = 2;
+    int64 thread_time_absolute_us = 17;
+  }
+}
+
+message TrackDescriptor {
+  optional uint64            uuid        = 1;
+  optional uint64            parent_uuid = 5;
+  optional string            name        = 2;
+  optional ThreadDescriptor  thread      = 4;
+  optional CounterDescriptor counter     = 8;
+}
+
+
+message ThreadDescriptor {
+  optional int32 pid = 1;
+  optional int32 tid = 2;
+
+  optional string thread_name = 5;
+}
+
+message CounterDescriptor {
+  enum BuiltinCounterType {
+    COUNTER_UNSPECIFIED = 0;
+    COUNTER_THREAD_TIME_NS = 1;
+    COUNTER_THREAD_INSTRUCTION_COUNT = 2;
+  }
+
+  enum Unit {
+    UNIT_UNSPECIFIED = 0;
+    UNIT_TIME_NS     = 1;
+    UNIT_COUNT       = 2;
+    UNIT_SIZE_BYTES  = 3;
+  }
+  optional BuiltinCounterType type            = 1;
+  repeated string             categories      = 2;
+  optional Unit               unit            = 3;
+  optional int64              unit_multiplier = 4;
+  optional bool               is_incremental  = 5;
+}
+
+message DebugAnnotation {
+  message NestedValue {
+    enum NestedType {
+      UNSPECIFIED = 0;
+      DICT        = 1;
+      ARRAY       = 2;
+    }
+
+    optional NestedType  nested_type  = 1;
+    repeated string      dict_keys    = 2;
+    repeated NestedValue dict_values  = 3;
+    repeated NestedValue array_values = 4;
+    optional int64       int_value    = 5;
+    optional double      double_value = 6;
+    optional bool        bool_value   = 7;
+    optional string      string_value = 8;
+  }
+
+  oneof name_field {
+    uint64 name_iid = 1;
+    string name     = 10;
+  }
+
+  oneof value {
+    bool        bool_value    = 2;
+    uint64      uint_value    = 3;
+    int64       int_value     = 4;
+    double      double_value  = 5;
+    string      string_value  = 6;
+    uint64      pointer_value = 7;
+    NestedValue nested_value  = 8;
+  }
+}

app/src/internal/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/core_red_shade"/>
+    <foreground android:drawable="@drawable/ic_launcher_foreground"/>
+</adaptive-icon>

app/src/main/AndroidManifest.xml

@@ -3,7 +3,7 @@
           xmlns:tools="http://schemas.android.com/tools"
           package="org.thoughtcrime.securesms">
 
-    <uses-sdk tools:overrideLibrary="androidx.camera.core,androidx.camera.camera2,androidx.camera.lifecycle" />
+    <uses-sdk tools:overrideLibrary="androidx.camera.core,androidx.camera.camera2,androidx.camera.lifecycle,androidx.camera.view" />
 
     <permission android:name="${applicationId}.ACCESS_SECRETS"
                 android:label="Access to TextSecure Secrets"
@@ -35,6 +35,7 @@
     <uses-permission android:name="android.permission.SEND_SMS"/>
     <uses-permission android:name="android.permission.WRITE_SMS"/>
     <uses-permission android:name="android.permission.READ_PHONE_STATE" />
+    <uses-permission android:name="android.permission.READ_PHONE_NUMBERS" />
 
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"
                      android:maxSdkVersion="28" />
@@ -443,7 +444,7 @@
               android:theme="@style/TextSecure.FullScreenMedia"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
-    <activity android:name=".BlockedContactsActivity"
+    <activity android:name=".blocked.BlockedUsersActivity"
               android:theme="@style/TextSecure.LightTheme"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
@@ -673,6 +674,11 @@
               android:exported="false"
               android:authorities="${applicationId}.part" />
 
+    <provider android:name=".providers.BlobContentProvider"
+              android:authorities="${applicationId}.blob"
+              android:exported="false"
+              android:grantUriPermissions="true" />
+
     <provider android:name=".providers.MmsBodyProvider"
               android:grantUriPermissions="true"
               android:exported="false"

app/src/main/java/androidx/camera/view/SignalCameraView.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.thoughtcrime.securesms.mediasend.camerax;
+package androidx.camera.view;
 
 import android.Manifest.permission;
 import android.annotation.SuppressLint;
@@ -45,43 +45,44 @@ import androidx.annotation.RestrictTo;
 import androidx.annotation.RestrictTo.Scope;
 import androidx.camera.core.Camera;
 import androidx.camera.core.CameraSelector;
-import androidx.camera.core.DisplayOrientedMeteringPointFactory;
 import androidx.camera.core.FocusMeteringAction;
 import androidx.camera.core.FocusMeteringResult;
 import androidx.camera.core.ImageCapture;
 import androidx.camera.core.ImageCapture.OnImageCapturedCallback;
+import androidx.camera.core.ImageCapture.OnImageSavedCallback;
 import androidx.camera.core.ImageProxy;
+import androidx.camera.core.Logger;
 import androidx.camera.core.MeteringPoint;
+import androidx.camera.core.MeteringPointFactory;
+import androidx.camera.core.VideoCapture;
+import androidx.camera.core.VideoCapture.OnVideoSavedCallback;
 import androidx.camera.core.impl.LensFacingConverter;
 import androidx.camera.core.impl.utils.executor.CameraXExecutors;
 import androidx.camera.core.impl.utils.futures.FutureCallback;
 import androidx.camera.core.impl.utils.futures.Futures;
 import androidx.lifecycle.LifecycleOwner;
+import androidx.lifecycle.LiveData;
 
 import com.google.common.util.concurrent.ListenableFuture;
 
-import org.thoughtcrime.securesms.R;
-import org.thoughtcrime.securesms.logging.Log;
-
-import java.io.FileDescriptor;
+import java.io.File;
 import java.util.concurrent.Executor;
 
 /**
  * A {@link View} that displays a preview of the camera with methods {@link
  * #takePicture(Executor, OnImageCapturedCallback)},
- * {@link #startRecording(FileDescriptor, Executor, VideoCapture.OnVideoSavedCallback)} and {@link #stopRecording()}.
+ * {@link #takePicture(ImageCapture.OutputFileOptions, Executor, OnImageSavedCallback)},
+ * {@link #startRecording(File , Executor , OnVideoSavedCallback callback)}
+ * and {@link #stopRecording()}.
  *
  * <p>Because the Camera is a limited resource and consumes a high amount of power, CameraView must
  * be opened/closed. CameraView will handle opening/closing automatically through use of a {@link
  * LifecycleOwner}. Use {@link #bindToLifecycle(LifecycleOwner)} to start the camera.
  */
-// Begin Signal Custom Code Block
 @RequiresApi(21)
 @SuppressLint("RestrictedApi")
-// End Signal Custom Code Block
-public final class CameraXView extends FrameLayout {
-  static final String TAG = CameraXView.class.getSimpleName();
-  static final boolean DEBUG = false;
+public final class SignalCameraView extends FrameLayout {
+  static final String TAG = SignalCameraView.class.getSimpleName();
 
   static final int INDEFINITE_VIDEO_DURATION = -1;
   static final int INDEFINITE_VIDEO_SIZE = -1;
@@ -107,7 +108,7 @@ public final class CameraXView extends FrameLayout {
   // For pinch-to-zoom
   private PinchToZoomGestureDetector mPinchToZoomGestureDetector;
   private boolean mIsPinchToZoomEnabled = true;
-  CameraXModule mCameraModule;
+  SignalCameraXModule mCameraModule;
   private final DisplayManager.DisplayListener mDisplayListener =
       new DisplayListener() {
         @Override
@@ -124,26 +125,25 @@ public final class CameraXView extends FrameLayout {
         }
       };
   private PreviewView mPreviewView;
-  private ScaleType mScaleType = ScaleType.CENTER_CROP;
   // For accessibility event
   private MotionEvent mUpEvent;
 
-  public CameraXView(@NonNull Context context) {
+  public SignalCameraView(@NonNull Context context) {
     this(context, null);
   }
 
-  public CameraXView(@NonNull Context context, @Nullable AttributeSet attrs) {
+  public SignalCameraView(@NonNull Context context, @Nullable AttributeSet attrs) {
     this(context, attrs, 0);
   }
 
-  public CameraXView(@NonNull Context context, @Nullable AttributeSet attrs, int defStyle) {
+  public SignalCameraView(@NonNull Context context, @Nullable AttributeSet attrs, int defStyle) {
     super(context, attrs, defStyle);
     init(context, attrs);
   }
 
   @RequiresApi(21)
-  public CameraXView(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr,
-                    int defStyleRes) {
+  public SignalCameraView(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr,
+                          int defStyleRes) {
     super(context, attrs, defStyleAttr, defStyleRes);
     init(context, attrs);
   }
@@ -172,23 +172,23 @@ public final class CameraXView extends FrameLayout {
 
   private void init(Context context, @Nullable AttributeSet attrs) {
     addView(mPreviewView = new PreviewView(getContext()), 0 /* view position */);
-    mCameraModule = new CameraXModule(this);
+    mCameraModule = new SignalCameraXModule(this);
 
     if (attrs != null) {
-      TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.CameraXView);
+      TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.CameraView);
       setScaleType(
-          ScaleType.fromId(
-              a.getInteger(R.styleable.CameraXView_scaleType,
+          PreviewView.ScaleType.fromId(
+              a.getInteger(R.styleable.CameraView_scaleType,
                   getScaleType().getId())));
       setPinchToZoomEnabled(
           a.getBoolean(
-              R.styleable.CameraXView_pinchToZoomEnabled, isPinchToZoomEnabled()));
+              R.styleable.CameraView_pinchToZoomEnabled, isPinchToZoomEnabled()));
       setCaptureMode(
           CaptureMode.fromId(
-              a.getInteger(R.styleable.CameraXView_captureMode,
+              a.getInteger(R.styleable.CameraView_captureMode,
                   getCaptureMode().getId())));
 
-      int lensFacing = a.getInt(R.styleable.CameraXView_lensFacing, LENS_FACING_BACK);
+      int lensFacing = a.getInt(R.styleable.CameraView_lensFacing, LENS_FACING_BACK);
       switch (lensFacing) {
         case LENS_FACING_NONE:
           setCameraLensFacing(null);
@@ -203,7 +203,7 @@ public final class CameraXView extends FrameLayout {
           // Unhandled event.
       }
 
-      int flashMode = a.getInt(R.styleable.CameraXView_flash, 0);
+      int flashMode = a.getInt(R.styleable.CameraView_flash, 0);
       switch (flashMode) {
         case FLASH_MODE_AUTO:
           setFlash(ImageCapture.FLASH_MODE_AUTO);
@@ -265,7 +265,7 @@ public final class CameraXView extends FrameLayout {
     if (savedState instanceof Bundle) {
       Bundle state = (Bundle) savedState;
       super.onRestoreInstanceState(state.getParcelable(EXTRA_SUPER));
-      setScaleType(ScaleType.fromId(state.getInt(EXTRA_SCALE_TYPE)));
+      setScaleType(PreviewView.ScaleType.fromId(state.getInt(EXTRA_SCALE_TYPE)));
       setZoomRatio(state.getFloat(EXTRA_ZOOM_RATIO));
       setPinchToZoomEnabled(state.getBoolean(EXTRA_PINCH_TO_ZOOM_ENABLED));
       setFlash(FlashModeConverter.valueOf(state.getString(EXTRA_FLASH)));
@@ -298,6 +298,21 @@ public final class CameraXView extends FrameLayout {
     dpyMgr.unregisterDisplayListener(mDisplayListener);
   }
 
+  /**
+   * Gets the {@link LiveData} of the underlying {@link PreviewView}'s
+   * {@link PreviewView.StreamState}.
+   *
+   * @return A {@link LiveData} containing the {@link PreviewView.StreamState}. Apps can either
+   * get current value by {@link LiveData#getValue()} or register a observer by
+   * {@link LiveData#observe}.
+   * @see PreviewView#getPreviewStreamState()
+   */
+  @NonNull
+  public LiveData<PreviewView.StreamState> getPreviewStreamState() {
+    return mPreviewView.getPreviewStreamState();
+  }
+
+  @NonNull
   PreviewView getPreviewView() {
     return mPreviewView;
   }
@@ -347,11 +362,11 @@ public final class CameraXView extends FrameLayout {
   /**
    * Returns the scale type used to scale the preview.
    *
-   * @return The current {@link ScaleType}.
+   * @return The current {@link PreviewView.ScaleType}.
    */
   @NonNull
-  public ScaleType getScaleType() {
-    return mScaleType;
+  public PreviewView.ScaleType getScaleType() {
+    return mPreviewView.getScaleType();
   }
 
   /**
@@ -359,13 +374,10 @@ public final class CameraXView extends FrameLayout {
    *
    * <p>This controls how the view finder should be scaled and positioned within the view.
    *
-   * @param scaleType The desired {@link ScaleType}.
+   * @param scaleType The desired {@link PreviewView.ScaleType}.
    */
-  public void setScaleType(@NonNull ScaleType scaleType) {
-    if (scaleType != mScaleType) {
-      mScaleType = scaleType;
-      requestLayout();
-    }
+  public void setScaleType(@NonNull PreviewView.ScaleType scaleType) {
+    mPreviewView.setScaleType(scaleType);
   }
 
   /**
@@ -401,8 +413,10 @@ public final class CameraXView extends FrameLayout {
   }
 
   /**
-   * Sets the maximum video duration before {@link VideoCapture.OnVideoSavedCallback#onVideoSaved(FileDescriptor)} is
-   * called automatically. Use {@link #INDEFINITE_VIDEO_DURATION} to disable the timeout.
+   * Sets the maximum video duration before
+   * {@link OnVideoSavedCallback#onVideoSaved(VideoCapture.OutputFileResults)} is called
+   * automatically.
+   * Use {@link #INDEFINITE_VIDEO_DURATION} to disable the timeout.
    */
   private void setMaxVideoDuration(long duration) {
     mCameraModule.setMaxVideoDuration(duration);
@@ -417,7 +431,8 @@ public final class CameraXView extends FrameLayout {
   }
 
   /**
-   * Sets the maximum video size in bytes before {@link VideoCapture.OnVideoSavedCallback#onVideoSaved(FileDescriptor)}
+   * Sets the maximum video size in bytes before
+   * {@link OnVideoSavedCallback#onVideoSaved(VideoCapture.OutputFileResults)}
    * is called automatically. Use {@link #INDEFINITE_VIDEO_SIZE} to disable the size restriction.
    */
   private void setMaxVideoSize(long size) {
@@ -435,28 +450,38 @@ public final class CameraXView extends FrameLayout {
     mCameraModule.takePicture(executor, callback);
   }
 
+  /**
+   * Takes a picture and calls
+   * {@link OnImageSavedCallback#onImageSaved(ImageCapture.OutputFileResults)} when done.
+   *
+   * <p> The value of {@link ImageCapture.Metadata#isReversedHorizontal()} in the
+   * {@link ImageCapture.OutputFileOptions} will be overwritten based on camera direction. For
+   * front camera, it will be set to true; for back camera, it will be set to false.
+   *
+   * @param outputFileOptions Options to store the newly captured image.
+   * @param executor          The executor in which the callback methods will be run.
+   * @param callback          Callback which will receive success or failure.
+   */
+  public void takePicture(@NonNull ImageCapture.OutputFileOptions outputFileOptions,
+                          @NonNull Executor executor,
+                          @NonNull OnImageSavedCallback callback) {
+    mCameraModule.takePicture(outputFileOptions, executor, callback);
+  }
+
   /**
    * Takes a video and calls the OnVideoSavedCallback when done.
    *
-   * @param file     The destination.
-   * @param executor The executor in which the callback methods will be run.
-   * @param callback Callback which will receive success or failure.
+   * @param outputFileOptions     Options to store the newly captured video.
+   * @param executor              The executor in which the callback methods will be run.
+   * @param callback              Callback which will receive success or failure.
    */
-  // Begin Signal Custom Code Block
-  @RequiresApi(26)
-  // End Signal Custom Code Block
-  public void startRecording(// Begin Signal Custom Code Block
-                             @NonNull FileDescriptor file,
-                             // End Signal Custom Code Block
+  public void startRecording(@NonNull VideoCapture.OutputFileOptions outputFileOptions,
                              @NonNull Executor executor,
-                             @NonNull VideoCapture.OnVideoSavedCallback callback) {
-    mCameraModule.startRecording(file, executor, callback);
+                             @NonNull OnVideoSavedCallback callback) {
+    mCameraModule.startRecording(outputFileOptions, executor, callback);
   }
 
   /** Stops an in progress video. */
-  // Begin Signal Custom Code Block
-  @RequiresApi(26)
-  // End Signal Custom Code Block
   public void stopRecording() {
     mCameraModule.stopRecording();
   }
@@ -554,7 +579,8 @@ public final class CameraXView extends FrameLayout {
         mDownEventTimestamp = System.currentTimeMillis();
         break;
       case MotionEvent.ACTION_UP:
-        if (delta() < ViewConfiguration.getLongPressTimeout()) {
+        if (delta() < ViewConfiguration.getLongPressTimeout()
+            && mCameraModule.isBoundToLifecycle()) {
           mUpEvent = event;
           performClick();
         }
@@ -578,19 +604,14 @@ public final class CameraXView extends FrameLayout {
     final float y = (mUpEvent != null) ? mUpEvent.getY() : getY() + getHeight() / 2f;
     mUpEvent = null;
 
-    CameraSelector cameraSelector =
-        new CameraSelector.Builder().requireLensFacing(
-            mCameraModule.getLensFacing()).build();
-
-    DisplayOrientedMeteringPointFactory pointFactory = new DisplayOrientedMeteringPointFactory(
-        getDisplay(), cameraSelector, mPreviewView.getWidth(), mPreviewView.getHeight());
-    float afPointWidth = 1.0f / 6.0f;  // 1/6 total area
-    float aePointWidth = afPointWidth * 1.5f;
-    MeteringPoint afPoint = pointFactory.createPoint(x, y, afPointWidth);
-    MeteringPoint aePoint = pointFactory.createPoint(x, y, aePointWidth);
-
     Camera camera = mCameraModule.getCamera();
     if (camera != null) {
+      MeteringPointFactory pointFactory = mPreviewView.getMeteringPointFactory();
+      float afPointWidth = 1.0f / 6.0f;  // 1/6 total area
+      float aePointWidth = afPointWidth * 1.5f;
+      MeteringPoint afPoint = pointFactory.createPoint(x, y, afPointWidth);
+      MeteringPoint aePoint = pointFactory.createPoint(x, y, aePointWidth);
+
       ListenableFuture<FocusMeteringResult> future =
           camera.getCameraControl().startFocusAndMetering(
               new FocusMeteringAction.Builder(afPoint,
@@ -609,7 +630,7 @@ public final class CameraXView extends FrameLayout {
       }, CameraXExecutors.directExecutor());
 
     } else {
-      Log.d(TAG, "cannot access camera");
+      Logger.d(TAG, "cannot access camera");
     }
 
     return true;
@@ -711,45 +732,11 @@ public final class CameraXView extends FrameLayout {
     return mCameraModule.isTorchOn();
   }
 
-  /** Options for scaling the bounds of the view finder to the bounds of this view. */
-  public enum ScaleType {
-    /**
-     * Scale the view finder, maintaining the source aspect ratio, so the view finder fills the
-     * entire view. This will cause the view finder to crop the source image if the camera
-     * aspect ratio does not match the view aspect ratio.
-     */
-    CENTER_CROP(0),
-    /**
-     * Scale the view finder, maintaining the source aspect ratio, so the view finder is
-     * entirely contained within the view.
-     */
-    CENTER_INSIDE(1);
-
-    private final int mId;
-
-    int getId() {
-      return mId;
-    }
-
-    ScaleType(int id) {
-      mId = id;
-    }
-
-    static ScaleType fromId(int id) {
-      for (ScaleType st : values()) {
-        if (st.mId == id) {
-          return st;
-        }
-      }
-      throw new IllegalArgumentException();
-    }
-  }
-
   /**
    * The capture mode used by CameraView.
    *
    * <p>This enum can be used to determine which capture mode will be enabled for {@link
-   * CameraXView}.
+   * SignalCameraView}.
    */
   public enum CaptureMode {
     /** A mode where image capture is enabled. */
@@ -832,4 +819,4 @@ public final class CameraXView extends FrameLayout {
     public void onScaleEnd(ScaleGestureDetector detector) {
     }
   }
-}
+}

app/src/main/java/androidx/camera/view/SignalCameraXModule.java

@@ -14,7 +14,9 @@
  * limitations under the License.
  */
 
-package org.thoughtcrime.securesms.mediasend.camerax;
+package androidx.camera.view;
+
+import static androidx.camera.core.ImageCapture.FLASH_MODE_OFF;
 
 import android.Manifest.permission;
 import android.annotation.SuppressLint;
@@ -27,17 +29,21 @@ import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.annotation.RequiresApi;
 import androidx.annotation.RequiresPermission;
+import androidx.camera.core.AspectRatio;
 import androidx.camera.core.Camera;
+import androidx.camera.core.CameraInfoUnavailableException;
 import androidx.camera.core.CameraSelector;
-import androidx.camera.core.CameraX;
 import androidx.camera.core.ImageCapture;
 import androidx.camera.core.ImageCapture.OnImageCapturedCallback;
+import androidx.camera.core.ImageCapture.OnImageSavedCallback;
+import androidx.camera.core.Logger;
 import androidx.camera.core.Preview;
 import androidx.camera.core.TorchState;
 import androidx.camera.core.UseCase;
+import androidx.camera.core.VideoCapture;
+import androidx.camera.core.VideoCapture.OnVideoSavedCallback;
 import androidx.camera.core.impl.CameraInternal;
 import androidx.camera.core.impl.LensFacingConverter;
-import androidx.camera.core.impl.VideoCaptureConfig;
 import androidx.camera.core.impl.utils.CameraOrientationUtil;
 import androidx.camera.core.impl.utils.executor.CameraXExecutors;
 import androidx.camera.core.impl.utils.futures.FutureCallback;
@@ -51,11 +57,10 @@ import androidx.lifecycle.OnLifecycleEvent;
 
 import com.google.common.util.concurrent.ListenableFuture;
 
-import org.thoughtcrime.securesms.logging.Log;
+import org.thoughtcrime.securesms.mediasend.camerax.CameraXUtil;
 import org.thoughtcrime.securesms.mms.MediaConstraints;
 import org.thoughtcrime.securesms.video.VideoUtil;
 
-import java.io.FileDescriptor;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.LinkedHashSet;
@@ -65,13 +70,10 @@ import java.util.Set;
 import java.util.concurrent.Executor;
 import java.util.concurrent.atomic.AtomicBoolean;
 
-import static androidx.camera.core.ImageCapture.FLASH_MODE_OFF;
-
 /** CameraX use case operation built on @{link androidx.camera.core}. */
-// Begin Signal Custom Code Block
 @RequiresApi(21)
-// End Signal Custom Code Block
-final class CameraXModule {
+@SuppressLint("RestrictedApi")
+final class SignalCameraXModule {
   public static final String TAG = "CameraXModule";
 
   private static final float UNITY_ZOOM_SCALE = 1f;
@@ -82,13 +84,13 @@ final class CameraXModule {
   private static final Rational ASPECT_RATIO_3_4 = new Rational(3, 4);
 
   private final Preview.Builder mPreviewBuilder;
-  private final VideoCaptureConfig.Builder mVideoCaptureConfigBuilder;
+  private final VideoCapture.Builder mVideoCaptureBuilder;
   private final ImageCapture.Builder mImageCaptureBuilder;
-  private final CameraXView mCameraXView;
+  private final SignalCameraView mCameraView;
   final AtomicBoolean mVideoIsRecording = new AtomicBoolean(false);
-  private CameraXView.CaptureMode mCaptureMode = CameraXView.CaptureMode.IMAGE;
-  private long mMaxVideoDuration = CameraXView.INDEFINITE_VIDEO_DURATION;
-  private long mMaxVideoSize = CameraXView.INDEFINITE_VIDEO_SIZE;
+  private SignalCameraView.CaptureMode mCaptureMode = SignalCameraView.CaptureMode.IMAGE;
+  private long mMaxVideoDuration = SignalCameraView.INDEFINITE_VIDEO_DURATION;
+  private long mMaxVideoSize = SignalCameraView.INDEFINITE_VIDEO_SIZE;
   @ImageCapture.FlashMode
   private int mFlash = FLASH_MODE_OFF;
   @Nullable
@@ -110,7 +112,6 @@ final class CameraXModule {
         public void onDestroy(LifecycleOwner owner) {
           if (owner == mCurrentLifecycle) {
             clearCurrentLifecycle();
-            mPreview.setSurfaceProvider(null);
           }
         }
       };
@@ -123,8 +124,8 @@ final class CameraXModule {
   @Nullable
   ProcessCameraProvider mCameraProvider;
 
-  CameraXModule(CameraXView view) {
-    mCameraXView = view;
+  SignalCameraXModule(SignalCameraView view) {
+    mCameraView = view;
 
     Futures.addCallback(ProcessCameraProvider.getInstance(view.getContext()),
         new FutureCallback<ProcessCameraProvider>() {
@@ -149,14 +150,12 @@ final class CameraXModule {
 
     mImageCaptureBuilder = new ImageCapture.Builder().setTargetName("ImageCapture");
 
-    // Begin Signal Custom Code Block
-    mVideoCaptureConfigBuilder =
-        new VideoCaptureConfig.Builder().setTargetName("VideoCapture")
-                                        .setAudioBitRate(VideoUtil.AUDIO_BIT_RATE)
-                                        .setVideoFrameRate(VideoUtil.VIDEO_FRAME_RATE)
-                                        .setBitRate(VideoUtil.VIDEO_BIT_RATE);
-    // End Signal Custom Code Block
+    mVideoCaptureBuilder = new VideoCapture.Builder().setTargetName("VideoCapture")
+                                                     .setAudioBitRate(VideoUtil.AUDIO_BIT_RATE)
+                                                     .setVideoFrameRate(VideoUtil.VIDEO_FRAME_RATE)
+                                                     .setBitRate(VideoUtil.VIDEO_BIT_RATE);
   }
+
   @RequiresPermission(permission.CAMERA)
   void bindToLifecycle(LifecycleOwner lifecycleOwner) {
     mNewLifecycle = lifecycleOwner;
@@ -173,12 +172,15 @@ final class CameraXModule {
     }
 
     clearCurrentLifecycle();
+    if (mNewLifecycle.getLifecycle().getCurrentState() == Lifecycle.State.DESTROYED) {
+      // Lifecycle is already in a destroyed state. Since it may have been a valid
+      // lifecycle when bound, but became destroyed while waiting for layout, treat this as
+      // a no-op now that we have cleared the previous lifecycle.
+      mNewLifecycle = null;
+      return;
+    }
     mCurrentLifecycle = mNewLifecycle;
     mNewLifecycle = null;
-    if (mCurrentLifecycle.getLifecycle().getCurrentState() == Lifecycle.State.DESTROYED) {
-      mCurrentLifecycle = null;
-      throw new IllegalArgumentException("Cannot bind to lifecycle in a destroyed state.");
-    }
 
     if (mCameraProvider == null) {
       // try again once the camera provider is no longer null
@@ -188,18 +190,18 @@ final class CameraXModule {
     Set<Integer> available = getAvailableCameraLensFacing();
 
     if (available.isEmpty()) {
-      Log.w(TAG, "Unable to bindToLifeCycle since no cameras available");
+      Logger.w(TAG, "Unable to bindToLifeCycle since no cameras available");
       mCameraLensFacing = null;
     }
 
     // Ensure the current camera exists, or default to another camera
     if (mCameraLensFacing != null && !available.contains(mCameraLensFacing)) {
-      Log.w(TAG, "Camera does not exist with direction " + mCameraLensFacing);
+      Logger.w(TAG, "Camera does not exist with direction " + mCameraLensFacing);
 
       // Default to the first available camera direction
       mCameraLensFacing = available.iterator().next();
 
-      Log.w(TAG, "Defaulting to primary camera with direction " + mCameraLensFacing);
+      Logger.w(TAG, "Defaulting to primary camera with direction " + mCameraLensFacing);
     }
 
     // Do not attempt to create use cases for a null cameraLensFacing. This could occur if
@@ -216,14 +218,12 @@ final class CameraXModule {
     boolean isDisplayPortrait = getDisplayRotationDegrees() == 0
         || getDisplayRotationDegrees() == 180;
 
-    Rational targetAspectRatio;
-
     // Begin Signal Custom Code Block
     int resolution = CameraXUtil.getIdealResolution(Resources.getSystem().getDisplayMetrics().widthPixels, Resources.getSystem().getDisplayMetrics().heightPixels);
     // End Signal Custom Code Block
 
-    if (getCaptureMode() == CameraXView.CaptureMode.IMAGE) {
-//      mImageCaptureBuilder.setTargetAspectRatio(AspectRatio.RATIO_4_3);
+    Rational targetAspectRatio;
+    if (getCaptureMode() == SignalCameraView.CaptureMode.IMAGE) {
       // Begin Signal Custom Code Block
       mImageCaptureBuilder.setTargetResolution(CameraXUtil.buildResolutionForRatio(resolution, ASPECT_RATIO_4_3, isDisplayPortrait));
       // End Signal Custom Code Block
@@ -232,7 +232,6 @@ final class CameraXModule {
       // Begin Signal Custom Code Block
       mImageCaptureBuilder.setTargetResolution(CameraXUtil.buildResolutionForRatio(resolution, ASPECT_RATIO_16_9, isDisplayPortrait));
       // End Signal Custom Code Block
-//      mImageCaptureBuilder.setTargetAspectRatio(AspectRatio.RATIO_16_9);
       targetAspectRatio = isDisplayPortrait ? ASPECT_RATIO_9_16 : ASPECT_RATIO_16_9;
     }
 
@@ -245,15 +244,14 @@ final class CameraXModule {
 
     // Begin Signal Custom Code Block
     Size size = VideoUtil.getVideoRecordingSize();
-    mVideoCaptureConfigBuilder.setTargetResolution(size);
-    mVideoCaptureConfigBuilder.setMaxResolution(size);
+    mVideoCaptureBuilder.setTargetResolution(size);
+    mVideoCaptureBuilder.setMaxResolution(size);
     // End Signal Custom Code Block
 
-    mVideoCaptureConfigBuilder.setTargetRotation(getDisplaySurfaceRotation());
-
+    mVideoCaptureBuilder.setTargetRotation(getDisplaySurfaceRotation());
     // Begin Signal Custom Code Block
     if (MediaConstraints.isVideoTranscodeAvailable()) {
-      mVideoCapture = new VideoCapture(mVideoCaptureConfigBuilder.getUseCaseConfig());
+      mVideoCapture = mVideoCaptureBuilder.build();
     }
     // End Signal Custom Code Block
 
@@ -262,15 +260,15 @@ final class CameraXModule {
     mPreviewBuilder.setTargetResolution(new Size(getMeasuredWidth(), height));
 
     mPreview = mPreviewBuilder.build();
-    mPreview.setSurfaceProvider(mCameraXView.getPreviewView().getPreviewSurfaceProvider());
+    mPreview.setSurfaceProvider(mCameraView.getPreviewView().getSurfaceProvider());
 
     CameraSelector cameraSelector =
         new CameraSelector.Builder().requireLensFacing(mCameraLensFacing).build();
-    if (getCaptureMode() == CameraXView.CaptureMode.IMAGE) {
+    if (getCaptureMode() == SignalCameraView.CaptureMode.IMAGE) {
       mCamera = mCameraProvider.bindToLifecycle(mCurrentLifecycle, cameraSelector,
           mImageCapture,
           mPreview);
-    } else if (getCaptureMode() == CameraXView.CaptureMode.VIDEO) {
+    } else if (getCaptureMode() == SignalCameraView.CaptureMode.VIDEO) {
       mCamera = mCameraProvider.bindToLifecycle(mCurrentLifecycle, cameraSelector,
           mVideoCapture,
           mPreview);
@@ -301,7 +299,7 @@ final class CameraXModule {
       return;
     }
 
-    if (getCaptureMode() == CameraXView.CaptureMode.VIDEO) {
+    if (getCaptureMode() == SignalCameraView.CaptureMode.VIDEO) {
       throw new IllegalStateException("Can not take picture under VIDEO capture mode.");
     }
 
@@ -312,17 +310,32 @@ final class CameraXModule {
     mImageCapture.takePicture(executor, callback);
   }
 
-  // Begin Signal Custom Code Block
-  @RequiresApi(26)
-  public void startRecording(FileDescriptor file,
-                             // End Signal Custom Code Block
-                             Executor executor,
-                             final VideoCapture.OnVideoSavedCallback callback) {
+  public void takePicture(@NonNull ImageCapture.OutputFileOptions outputFileOptions,
+                          @NonNull Executor executor, OnImageSavedCallback callback) {
+    if (mImageCapture == null) {
+      return;
+    }
+
+    if (getCaptureMode() == SignalCameraView.CaptureMode.VIDEO) {
+      throw new IllegalStateException("Can not take picture under VIDEO capture mode.");
+    }
+
+    if (callback == null) {
+      throw new IllegalArgumentException("OnImageSavedCallback should not be empty");
+    }
+
+    outputFileOptions.getMetadata().setReversedHorizontal(mCameraLensFacing != null
+        && mCameraLensFacing == CameraSelector.LENS_FACING_FRONT);
+    mImageCapture.takePicture(outputFileOptions, executor, callback);
+  }
+
+  public void startRecording(VideoCapture.OutputFileOptions outputFileOptions,
+                             Executor executor, final OnVideoSavedCallback callback) {
     if (mVideoCapture == null) {
       return;
     }
 
-    if (getCaptureMode() == CameraXView.CaptureMode.IMAGE) {
+    if (getCaptureMode() == SignalCameraView.CaptureMode.IMAGE) {
       throw new IllegalStateException("Can not record video under IMAGE capture mode.");
     }
 
@@ -332,15 +345,14 @@ final class CameraXModule {
 
     mVideoIsRecording.set(true);
     mVideoCapture.startRecording(
-        file,
+        outputFileOptions,
         executor,
         new VideoCapture.OnVideoSavedCallback() {
           @Override
-          // Begin Signal Custom Code Block
-          public void onVideoSaved(@NonNull FileDescriptor savedFile) {
-          // End Signal Custom Code Block
+          public void onVideoSaved(
+              @NonNull VideoCapture.OutputFileResults outputFileResults) {
             mVideoIsRecording.set(false);
-            callback.onVideoSaved(savedFile);
+            callback.onVideoSaved(outputFileResults);
           }
 
           @Override
@@ -349,15 +361,12 @@ final class CameraXModule {
               @NonNull String message,
               @Nullable Throwable cause) {
             mVideoIsRecording.set(false);
-            Log.e(TAG, message, cause);
+            Logger.e(TAG, message, cause);
             callback.onError(videoCaptureError, message, cause);
           }
         });
   }
 
-  // Begin Signal Custom Code Block
-  @RequiresApi(26)
-  // End Signal Custom Code Block
   public void stopRecording() {
     if (mVideoCapture == null) {
       return;
@@ -388,14 +397,15 @@ final class CameraXModule {
 
   @RequiresPermission(permission.CAMERA)
   public boolean hasCameraWithLensFacing(@CameraSelector.LensFacing int lensFacing) {
-    String cameraId;
-    try {
-      cameraId = CameraX.getCameraWithLensFacing(lensFacing);
-    } catch (Exception e) {
-      throw new IllegalStateException("Unable to query lens facing.", e);
+    if (mCameraProvider == null) {
+      return false;
+    }
+    try {
+      return mCameraProvider.hasCamera(
+          new CameraSelector.Builder().requireLensFacing(lensFacing).build());
+    } catch (CameraInfoUnavailableException e) {
+      return false;
     }
-
-    return cameraId != null;
   }
 
   @Nullable
@@ -454,7 +464,7 @@ final class CameraXModule {
         }
       }, CameraXExecutors.directExecutor());
     } else {
-      Log.e(TAG, "Failed to set zoom ratio");
+      Logger.e(TAG, "Failed to set zoom ratio");
     }
   }
 
@@ -486,6 +496,10 @@ final class CameraXModule {
     }
   }
 
+  boolean isBoundToLifecycle() {
+    return mCamera != null;
+  }
+
   int getRelativeCameraOrientation(boolean compensateForMirroring) {
     int rotationDegrees = 0;
     if (mCamera != null) {
@@ -520,6 +534,11 @@ final class CameraXModule {
       if (!toUnbind.isEmpty()) {
         mCameraProvider.unbind(toUnbind.toArray((new UseCase[0])));
       }
+
+      // Remove surface provider once unbound.
+      if (mPreview != null) {
+        mPreview.setSurfaceProvider(null);
+      }
     }
     mCamera = null;
     mCurrentLifecycle = null;
@@ -532,7 +551,7 @@ final class CameraXModule {
       mImageCapture.setTargetRotation(getDisplaySurfaceRotation());
     }
 
-    if (mVideoCapture != null && MediaConstraints.isVideoTranscodeAvailable()) {
+    if (mVideoCapture != null) {
       mVideoCapture.setTargetRotation(getDisplaySurfaceRotation());
     }
   }
@@ -567,7 +586,7 @@ final class CameraXModule {
       return false;
     }
 
-    CameraInternal camera = mImageCapture.getBoundCamera();
+    CameraInternal camera = mImageCapture.getCamera();
 
     if (camera == null) {
       return false;
@@ -614,15 +633,15 @@ final class CameraXModule {
   }
 
   public Context getContext() {
-    return mCameraXView.getContext();
+    return mCameraView.getContext();
   }
 
   public int getWidth() {
-    return mCameraXView.getWidth();
+    return mCameraView.getWidth();
   }
 
   public int getHeight() {
-    return mCameraXView.getHeight();
+    return mCameraView.getHeight();
   }
 
   public int getDisplayRotationDegrees() {
@@ -630,15 +649,15 @@ final class CameraXModule {
   }
 
   protected int getDisplaySurfaceRotation() {
-    return mCameraXView.getDisplaySurfaceRotation();
+    return mCameraView.getDisplaySurfaceRotation();
   }
 
   private int getMeasuredWidth() {
-    return mCameraXView.getMeasuredWidth();
+    return mCameraView.getMeasuredWidth();
   }
 
   private int getMeasuredHeight() {
-    return mCameraXView.getMeasuredHeight();
+    return mCameraView.getMeasuredHeight();
   }
 
   @Nullable
@@ -647,11 +666,11 @@ final class CameraXModule {
   }
 
   @NonNull
-  public CameraXView.CaptureMode getCaptureMode() {
+  public SignalCameraView.CaptureMode getCaptureMode() {
     return mCaptureMode;
   }
 
-  public void setCaptureMode(@NonNull CameraXView.CaptureMode captureMode) {
+  public void setCaptureMode(@NonNull SignalCameraView.CaptureMode captureMode) {
     this.mCaptureMode = captureMode;
     rebindToLifecycle();
   }

app/src/main/java/org/thoughtcrime/securesms/AppCapabilities.java

@@ -1,5 +1,6 @@
 package org.thoughtcrime.securesms;
 
+import org.thoughtcrime.securesms.util.FeatureFlags;
 import org.whispersystems.signalservice.api.account.AccountAttributes;
 
 public final class AppCapabilities {
@@ -15,6 +16,6 @@ public final class AppCapabilities {
    *                       asking if the user has set a Signal PIN or not.
    */
   public static AccountAttributes.Capabilities getCapabilities(boolean storageCapable) {
-    return new AccountAttributes.Capabilities(UUID_CAPABLE, GV2_CAPABLE, storageCapable);
+    return new AccountAttributes.Capabilities(UUID_CAPABLE, GV2_CAPABLE, storageCapable, FeatureFlags.groupsV1AutoMigration());
   }
 }

app/src/main/java/org/thoughtcrime/securesms/AppInitialization.java

@@ -34,6 +34,11 @@ public final class AppInitialization {
     TextSecurePreferences.setJobManagerVersion(context, JobManager.CURRENT_VERSION);
     TextSecurePreferences.setLastExperienceVersionCode(context, Util.getCanonicalVersionCode());
     TextSecurePreferences.setHasSeenStickerIntroTooltip(context, true);
+    TextSecurePreferences.setPasswordDisabled(context, true);
+    TextSecurePreferences.setLastExperienceVersionCode(context, Util.getCanonicalVersionCode());
+    TextSecurePreferences.setReadReceiptsEnabled(context, true);
+    TextSecurePreferences.setTypingIndicatorsEnabled(context, true);
+    TextSecurePreferences.setHasSeenWelcomeScreen(context, false);
     ApplicationDependencies.getMegaphoneRepository().onFirstEverAppLaunch();
     SignalStore.onFirstEverAppLaunch();
     ApplicationDependencies.getJobManager().add(StickerPackDownloadJob.forInstall(BlessedPacks.ZOZO.getPackId(), BlessedPacks.ZOZO.getPackKey(), false));

app/src/main/java/org/thoughtcrime/securesms/ApplicationContext.java

@@ -35,8 +35,6 @@ import org.conscrypt.Conscrypt;
 import org.signal.aesgcmprovider.AesGcmProvider;
 import org.signal.glide.SignalGlideCodecs;
 import org.signal.ringrtc.CallManager;
-import org.thoughtcrime.securesms.components.TypingStatusRepository;
-import org.thoughtcrime.securesms.components.TypingStatusSender;
 import org.thoughtcrime.securesms.database.DatabaseFactory;
 import org.thoughtcrime.securesms.database.helpers.SQLCipherOpenHelper;
 import org.thoughtcrime.securesms.dependencies.ApplicationDependencies;
@@ -44,6 +42,7 @@ import org.thoughtcrime.securesms.dependencies.ApplicationDependencyProvider;
 import org.thoughtcrime.securesms.gcm.FcmJobService;
 import org.thoughtcrime.securesms.jobs.CreateSignedPreKeyJob;
 import org.thoughtcrime.securesms.jobs.FcmRefreshJob;
+import org.thoughtcrime.securesms.jobs.GroupV1MigrationJob;
 import org.thoughtcrime.securesms.jobs.MultiDeviceContactUpdateJob;
 import org.thoughtcrime.securesms.jobs.PushNotificationReceiveJob;
 import org.thoughtcrime.securesms.jobs.RefreshPreKeysJob;
@@ -69,6 +68,8 @@ import org.thoughtcrime.securesms.service.RotateSenderCertificateListener;
 import org.thoughtcrime.securesms.service.RotateSignedPreKeyListener;
 import org.thoughtcrime.securesms.service.UpdateApkRefreshListener;
 import org.thoughtcrime.securesms.storage.StorageSyncHelper;
+import org.thoughtcrime.securesms.tracing.Trace;
+import org.thoughtcrime.securesms.util.DynamicTheme;
 import org.thoughtcrime.securesms.util.FeatureFlags;
 import org.thoughtcrime.securesms.util.TextSecurePreferences;
 import org.thoughtcrime.securesms.util.Util;
@@ -91,15 +92,14 @@ import java.util.concurrent.TimeUnit;
  *
  * @author Moxie Marlinspike
  */
+@Trace
 public class ApplicationContext extends MultiDexApplication implements DefaultLifecycleObserver {
 
   private static final String TAG = ApplicationContext.class.getSimpleName();
 
-  private ExpiringMessageManager   expiringMessageManager;
-  private ViewOnceMessageManager   viewOnceMessageManager;
-  private TypingStatusRepository   typingStatusRepository;
-  private TypingStatusSender       typingStatusSender;
-  private PersistentLogger         persistentLogger;
+  private ExpiringMessageManager expiringMessageManager;
+  private ViewOnceMessageManager viewOnceMessageManager;
+  private PersistentLogger       persistentLogger;
 
   private volatile boolean isAppVisible;
 
@@ -121,8 +121,6 @@ public class ApplicationContext extends MultiDexApplication implements DefaultLi
     initializeMessageRetrieval();
     initializeExpiringMessageManager();
     initializeRevealableMessageManager();
-    initializeTypingStatusRepository();
-    initializeTypingStatusSender();
     initializeGcmCheck();
     initializeSignedPreKeyCheck();
     initializePeriodicTasks();
@@ -145,6 +143,9 @@ public class ApplicationContext extends MultiDexApplication implements DefaultLi
     }
 
     ApplicationDependencies.getJobManager().beginJobLoop();
+
+    DynamicTheme.setDefaultDayNightMode(this);
+
     Log.d(TAG, "onCreate() took " + (System.currentTimeMillis() - startTime) + " ms");
   }
 
@@ -155,6 +156,7 @@ public class ApplicationContext extends MultiDexApplication implements DefaultLi
     FeatureFlags.refreshIfNecessary();
     ApplicationDependencies.getRecipientCache().warmUp();
     RetrieveProfileJob.enqueueRoutineFetchIfNecessary(this);
+    GroupV1MigrationJob.enqueueRoutineMigrationsIfNecessary(this);
     executePendingContactSync();
     KeyCachingService.onAppForegrounded(this);
     ApplicationDependencies.getFrameRateTracker().begin();
@@ -179,14 +181,6 @@ public class ApplicationContext extends MultiDexApplication implements DefaultLi
     return viewOnceMessageManager;
   }
 
-  public TypingStatusRepository getTypingStatusRepository() {
-    return typingStatusRepository;
-  }
-
-  public TypingStatusSender getTypingStatusSender() {
-    return typingStatusSender;
-  }
-
   public boolean isAppVisible() {
     return isAppVisible;
   }
@@ -286,14 +280,6 @@ public class ApplicationContext extends MultiDexApplication implements DefaultLi
     this.viewOnceMessageManager = new ViewOnceMessageManager(this);
   }
 
-  private void initializeTypingStatusRepository() {
-    this.typingStatusRepository = new TypingStatusRepository();
-  }
-
-  private void initializeTypingStatusSender() {
-    this.typingStatusSender = new TypingStatusSender(this);
-  }
-
   private void initializePeriodicTasks() {
     RotateSignedPreKeyListener.schedule(this);
     DirectoryRefreshListener.schedule(this);
@@ -422,7 +408,8 @@ public class ApplicationContext extends MultiDexApplication implements DefaultLi
 
   @Override
   protected void attachBaseContext(Context base) {
-    super.attachBaseContext(DynamicLanguageContextWrapper.updateContext(base, TextSecurePreferences.getLanguage(base)));
+    DynamicLanguageContextWrapper.updateContext(base);
+    super.attachBaseContext(base);
   }
 
   private static class ProviderInitializationException extends RuntimeException {

app/src/main/java/org/thoughtcrime/securesms/ApplicationPreferencesActivity.java

@@ -18,7 +18,6 @@
 package org.thoughtcrime.securesms;
 
 import android.app.AlertDialog;
-import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.graphics.PorterDuff;
@@ -27,9 +26,9 @@ import android.os.Bundle;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.core.content.ContextCompat;
 import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentManager;
-import androidx.fragment.app.FragmentTransaction;
 import androidx.preference.Preference;
 
 import org.thoughtcrime.securesms.help.HelpFragment;
@@ -83,9 +82,13 @@ public class ApplicationPreferencesActivity extends PassphraseRequiredActivity
   private static final String PREFERENCE_CATEGORY_ADVANCED       = "preference_category_advanced";
   private static final String PREFERENCE_CATEGORY_DONATE         = "preference_category_donate";
 
+  private static final String WAS_CONFIGURATION_UPDATED          = "was_configuration_updated";
+
   private final DynamicTheme    dynamicTheme    = new DynamicTheme();
   private final DynamicLanguage dynamicLanguage = new DynamicLanguage();
 
+  private boolean wasConfigurationUpdated = false;
+
   @Override
   protected void onPreCreate() {
     dynamicTheme.onCreate(this);
@@ -103,9 +106,17 @@ public class ApplicationPreferencesActivity extends PassphraseRequiredActivity
       initFragment(android.R.id.content, new BackupsPreferenceFragment());
     } else if (icicle == null) {
       initFragment(android.R.id.content, new ApplicationPreferenceFragment());
+    } else {
+      wasConfigurationUpdated = icicle.getBoolean(WAS_CONFIGURATION_UPDATED);
     }
   }
 
+  @Override
+  protected void onSaveInstanceState(@NonNull Bundle outState) {
+    outState.putBoolean(WAS_CONFIGURATION_UPDATED, wasConfigurationUpdated);
+    super.onSaveInstanceState(outState);
+  }
+
   @Override
   public void onResume() {
     super.onResume();
@@ -127,20 +138,28 @@ public class ApplicationPreferencesActivity extends PassphraseRequiredActivity
     if (fragmentManager.getBackStackEntryCount() > 0) {
       fragmentManager.popBackStack();
     } else {
-      // TODO [greyson] Navigation
-      Intent intent = new Intent(this, MainActivity.class);
-      intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
-      startActivity(intent);
+      if (wasConfigurationUpdated) {
+        setResult(MainActivity.RESULT_CONFIG_CHANGED);
+      } else {
+        setResult(RESULT_OK);
+      }
       finish();
     }
     return true;
   }
 
+  @Override
+  public void onBackPressed() {
+    onSupportNavigateUp();
+  }
+
   @Override
   public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
     if (key.equals(TextSecurePreferences.THEME_PREF)) {
+      DynamicTheme.setDefaultDayNightMode(this);
       recreate();
     } else if (key.equals(TextSecurePreferences.LANGUAGE_PREF)) {
+      wasConfigurationUpdated = true;
       recreate();
 
       Intent intent = new Intent(this, KeyCachingService.class);
@@ -195,7 +214,7 @@ public class ApplicationPreferencesActivity extends PassphraseRequiredActivity
       if (Build.VERSION.SDK_INT >= 21) return;
 
       Preference preference = this.findPreference(PREFERENCE_CATEGORY_SMS_MMS);
-      preference.getIcon().setColorFilter(ThemeUtil.getThemedColor(requireContext(), R.attr.icon_tint), PorterDuff.Mode.SRC_IN);
+      preference.getIcon().setColorFilter(ContextCompat.getColor(requireContext(), R.color.signal_icon_tint_primary), PorterDuff.Mode.SRC_IN);
     }
 
     @Override

app/src/main/java/org/thoughtcrime/securesms/AvatarPreviewActivity.java

@@ -82,10 +82,10 @@ public final class AvatarPreviewActivity extends PassphraseRequiredActivity {
     RecipientId recipientId = RecipientId.from(getIntent().getStringExtra(RECIPIENT_ID_EXTRA));
 
     Recipient.live(recipientId).observe(this, recipient -> {
-      ContactPhoto contactPhoto  = recipient.isLocalNumber() ? new ProfileContactPhoto(recipient, recipient.getProfileAvatar())
-                                                                   : recipient.getContactPhoto();
-      FallbackContactPhoto fallbackPhoto = recipient.isLocalNumber() ? new ResourceContactPhoto(R.drawable.ic_profile_outline_40, R.drawable.ic_profile_outline_20, R.drawable.ic_person_large)
-                                                                     : recipient.getFallbackContactPhoto();
+      ContactPhoto contactPhoto  = recipient.isSelf() ? new ProfileContactPhoto(recipient, recipient.getProfileAvatar())
+                                                      : recipient.getContactPhoto();
+      FallbackContactPhoto fallbackPhoto = recipient.isSelf() ? new ResourceContactPhoto(R.drawable.ic_profile_outline_40, R.drawable.ic_profile_outline_20, R.drawable.ic_person_large)
+                                                              : recipient.getFallbackContactPhoto();
 
       Resources resources = this.getResources();
 

app/src/main/java/org/thoughtcrime/securesms/BaseActivity.java

@@ -3,21 +3,24 @@ package org.thoughtcrime.securesms;
 import android.annotation.TargetApi;
 import android.content.Context;
 import android.content.Intent;
+import android.content.res.Configuration;
 import android.os.Build;
-import android.os.Build.VERSION_CODES;
 import android.os.Bundle;
-
-import androidx.annotation.NonNull;
-import androidx.appcompat.app.ActionBar;
-import androidx.core.app.ActivityCompat;
-import androidx.core.app.ActivityOptionsCompat;
-import androidx.appcompat.app.AppCompatActivity;
 import android.view.View;
 import android.view.WindowManager;
 
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.app.AppCompatDelegate;
+import androidx.core.app.ActivityCompat;
+import androidx.core.app.ActivityOptionsCompat;
+
 import org.thoughtcrime.securesms.logging.Log;
+import org.thoughtcrime.securesms.util.ConfigurationUtil;
+import org.thoughtcrime.securesms.util.ContextUtil;
 import org.thoughtcrime.securesms.util.TextSecurePreferences;
-import org.thoughtcrime.securesms.util.dynamiclanguage.DynamicLanguageActivityHelper;
+import org.thoughtcrime.securesms.util.WindowUtil;
 import org.thoughtcrime.securesms.util.dynamiclanguage.DynamicLanguageContextWrapper;
 
 import java.util.Objects;
@@ -40,7 +43,6 @@ public abstract class BaseActivity extends AppCompatActivity {
   protected void onResume() {
     super.onResume();
     initializeScreenshotSecurity();
-    DynamicLanguageActivityHelper.recreateIfNotInCorrectLanguage(this, TextSecurePreferences.getLanguage(this));
   }
 
   @Override
@@ -75,16 +77,23 @@ public abstract class BaseActivity extends AppCompatActivity {
     ActivityCompat.startActivity(this, intent, bundle);
   }
 
-  @TargetApi(21)
-  protected void setStatusBarColor(int color) {
-    if (Build.VERSION.SDK_INT >= 21) {
-      getWindow().setStatusBarColor(color);
-    }
+  @Override
+  protected void attachBaseContext(@NonNull Context newBase) {
+    super.attachBaseContext(newBase);
+
+    Configuration configuration      = new Configuration(newBase.getResources().getConfiguration());
+    int           appCompatNightMode = getDelegate().getLocalNightMode() != AppCompatDelegate.MODE_NIGHT_UNSPECIFIED ? getDelegate().getLocalNightMode()
+                                                                                                                     : AppCompatDelegate.getDefaultNightMode();
+
+    configuration.uiMode = (configuration.uiMode & ~Configuration.UI_MODE_NIGHT_MASK) | mapNightModeToConfigurationUiMode(newBase, appCompatNightMode);
+
+    applyOverrideConfiguration(configuration);
   }
 
   @Override
-  protected void attachBaseContext(Context newBase) {
-    super.attachBaseContext(DynamicLanguageContextWrapper.updateContext(newBase, TextSecurePreferences.getLanguage(newBase)));
+  public void applyOverrideConfiguration(@NonNull Configuration overrideConfiguration) {
+    DynamicLanguageContextWrapper.prepareOverrideConfiguration(this, overrideConfiguration);
+    super.applyOverrideConfiguration(overrideConfiguration);
   }
 
   private void logEvent(@NonNull String event) {
@@ -94,4 +103,13 @@ public abstract class BaseActivity extends AppCompatActivity {
   public final @NonNull ActionBar requireSupportActionBar() {
     return Objects.requireNonNull(getSupportActionBar());
   }
+
+  private static int mapNightModeToConfigurationUiMode(@NonNull Context context, @AppCompatDelegate.NightMode int appCompatNightMode) {
+    if (appCompatNightMode == AppCompatDelegate.MODE_NIGHT_YES) {
+      return Configuration.UI_MODE_NIGHT_YES;
+    } else if (appCompatNightMode == AppCompatDelegate.MODE_NIGHT_NO) {
+      return Configuration.UI_MODE_NIGHT_NO;
+    }
+    return ConfigurationUtil.getNightModeConfiguration(context.getApplicationContext());
+  }
 }

app/src/main/java/org/thoughtcrime/securesms/BindableConversationItem.java

@@ -59,6 +59,7 @@ public interface BindableConversationItem extends Unbindable {
     void onVoiceNotePause(@NonNull Uri uri);
     void onVoiceNotePlay(@NonNull Uri uri, long messageId, double position);
     void onVoiceNoteSeekTo(@NonNull Uri uri, double position);
+    void onGroupMigrationLearnMoreClicked(@NonNull List<RecipientId> pendingRecipients);
 
     /** @return true if handled, false if you want to let the normal url handling continue */
     boolean onUrlClicked(@NonNull String url);

app/src/main/java/org/thoughtcrime/securesms/BlockedContactsActivity.java

@@ -1,139 +0,0 @@
-package org.thoughtcrime.securesms;
-
-import android.content.Context;
-import android.database.Cursor;
-import android.os.Bundle;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.AdapterView;
-import android.widget.ListView;
-
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-import androidx.cursoradapter.widget.CursorAdapter;
-import androidx.fragment.app.ListFragment;
-import androidx.loader.app.LoaderManager;
-import androidx.loader.content.Loader;
-
-import org.thoughtcrime.securesms.database.RecipientDatabase;
-import org.thoughtcrime.securesms.database.loaders.BlockedContactsLoader;
-import org.thoughtcrime.securesms.mms.GlideApp;
-import org.thoughtcrime.securesms.mms.GlideRequests;
-import org.thoughtcrime.securesms.preferences.BlockedContactListItem;
-import org.thoughtcrime.securesms.recipients.LiveRecipient;
-import org.thoughtcrime.securesms.recipients.Recipient;
-import org.thoughtcrime.securesms.recipients.RecipientId;
-import org.thoughtcrime.securesms.recipients.RecipientUtil;
-import org.thoughtcrime.securesms.util.DynamicTheme;
-
-public class BlockedContactsActivity extends PassphraseRequiredActivity {
-
-  private final DynamicTheme dynamicTheme = new DynamicTheme();
-
-  @Override
-  public void onPreCreate() {
-    dynamicTheme.onCreate(this);
-  }
-
-  @Override
-  public void onCreate(Bundle bundle, boolean ready) {
-    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
-    getSupportActionBar().setTitle(R.string.BlockedContactsActivity_blocked_contacts);
-    initFragment(android.R.id.content, new BlockedContactsFragment());
-  }
-
-  @Override
-  public void onResume() {
-    super.onResume();
-    dynamicTheme.onResume(this);
-  }
-
-  @Override
-  public boolean onSupportNavigateUp() {
-    onBackPressed();
-    return true;
-  }
-
-  public static class BlockedContactsFragment
-      extends ListFragment
-      implements LoaderManager.LoaderCallbacks<Cursor>, ListView.OnItemClickListener
-  {
-
-    @Override
-    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle bundle) {
-      return inflater.inflate(R.layout.blocked_contacts_fragment, container, false);
-    }
-
-    @Override
-    public void onCreate(Bundle bundle) {
-      super.onCreate(bundle);
-      setListAdapter(new BlockedContactAdapter(requireActivity(), GlideApp.with(this), null));
-      LoaderManager.getInstance(this).initLoader(0, null, this);
-    }
-
-    @Override
-    public void onStart() {
-      super.onStart();
-      LoaderManager.getInstance(this).restartLoader(0, null, this);
-    }
-
-    @Override
-    public void onActivityCreated(Bundle bundle) {
-      super.onActivityCreated(bundle);
-      getListView().setOnItemClickListener(this);
-    }
-
-    @Override
-    public @NonNull Loader<Cursor> onCreateLoader(int id, Bundle args) {
-      return new BlockedContactsLoader(getActivity());
-    }
-
-    @Override
-    public void onLoadFinished(@NonNull Loader<Cursor> loader, Cursor data) {
-      if (getListAdapter() != null) {
-        ((CursorAdapter) getListAdapter()).changeCursor(data);
-      }
-    }
-
-    @Override
-    public void onLoaderReset(@NonNull Loader<Cursor> loader) {
-      if (getListAdapter() != null) {
-        ((CursorAdapter) getListAdapter()).changeCursor(null);
-      }
-    }
-
-    @Override
-    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
-      Recipient recipient = ((BlockedContactListItem)view).getRecipient();
-      BlockUnblockDialog.showUnblockFor(requireContext(), getLifecycle(), recipient, () -> {
-        RecipientUtil.unblock(requireContext(), recipient);
-        LoaderManager.getInstance(this).restartLoader(0, null, this);
-      });
-    }
-
-    private static class BlockedContactAdapter extends CursorAdapter {
-
-      private final GlideRequests glideRequests;
-
-      BlockedContactAdapter(@NonNull Context context, @NonNull GlideRequests glideRequests, @Nullable Cursor c) {
-        super(context, c);
-        this.glideRequests = glideRequests;
-      }
-
-      @Override
-      public View newView(Context context, Cursor cursor, ViewGroup parent) {
-        return LayoutInflater.from(context)
-                             .inflate(R.layout.blocked_contact_list_item, parent, false);
-      }
-
-      @Override
-      public void bindView(View view, Context context, Cursor cursor) {
-        RecipientId   recipientId = RecipientId.from(cursor.getLong(cursor.getColumnIndexOrThrow(RecipientDatabase.ID)));
-        LiveRecipient recipient   = Recipient.live(recipientId);
-
-        ((BlockedContactListItem) view).set(glideRequests, recipient);
-      }
-    }
-  }
-}

app/src/main/java/org/thoughtcrime/securesms/ContactSelectionListFragment.java

@@ -21,6 +21,7 @@ import android.Manifest;
 import android.animation.LayoutTransition;
 import android.annotation.SuppressLint;
 import android.content.Context;
+import android.content.Intent;
 import android.database.Cursor;
 import android.os.AsyncTask;
 import android.os.Bundle;
@@ -29,7 +30,6 @@ import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.WindowManager;
-import android.view.animation.CycleInterpolator;
 import android.widget.Button;
 import android.widget.HorizontalScrollView;
 import android.widget.TextView;
@@ -56,6 +56,7 @@ import com.google.android.material.chip.ChipGroup;
 import com.pnikosis.materialishprogress.ProgressWheel;
 
 import org.thoughtcrime.securesms.components.RecyclerViewFastScroller;
+import org.thoughtcrime.securesms.components.emoji.WarningTextView;
 import org.thoughtcrime.securesms.contacts.ContactChip;
 import org.thoughtcrime.securesms.contacts.ContactSelectionListAdapter;
 import org.thoughtcrime.securesms.contacts.ContactSelectionListItem;
@@ -63,6 +64,8 @@ import org.thoughtcrime.securesms.contacts.ContactsCursorLoader;
 import org.thoughtcrime.securesms.contacts.ContactsCursorLoader.DisplayMode;
 import org.thoughtcrime.securesms.contacts.SelectedContact;
 import org.thoughtcrime.securesms.contacts.sync.DirectoryHelper;
+import org.thoughtcrime.securesms.groups.SelectionLimits;
+import org.thoughtcrime.securesms.groups.ui.GroupLimitDialog;
 import org.thoughtcrime.securesms.logging.Log;
 import org.thoughtcrime.securesms.mms.GlideApp;
 import org.thoughtcrime.securesms.mms.GlideRequests;
@@ -82,7 +85,6 @@ import org.whispersystems.libsignal.util.guava.Optional;
 import java.io.IOException;
 import java.util.Collections;
 import java.util.List;
-import java.util.Locale;
 import java.util.Set;
 
 /**
@@ -103,11 +105,11 @@ public final class ContactSelectionListFragment extends LoggingFragment
   public static final int NO_LIMIT = Integer.MAX_VALUE;
 
   public static final String DISPLAY_MODE      = "display_mode";
-  public static final String MULTI_SELECT      = "multi_select";
   public static final String REFRESHABLE       = "refreshable";
   public static final String RECENTS           = "recents";
-  public static final String SELECTION_LIMIT   = "selection_limit";
+  public static final String SELECTION_LIMITS  = "selection_limits";
   public static final String CURRENT_SELECTION = "current_selection";
+  public static final String HIDE_COUNT        = "hide_count";
 
   private ConstraintLayout            constraintLayout;
   private TextView                    emptyText;
@@ -123,15 +125,17 @@ public final class ContactSelectionListFragment extends LoggingFragment
   private ContactSelectionListAdapter cursorRecyclerViewAdapter;
   private ChipGroup                   chipGroup;
   private HorizontalScrollView        chipGroupScrollContainer;
-  private TextView                    groupLimit;
+  private WarningTextView             groupLimit;
 
   @Nullable private FixedViewsAdapter headerAdapter;
   @Nullable private FixedViewsAdapter footerAdapter;
   @Nullable private ListCallback      listCallback;
   @Nullable private ScrollCallback    scrollCallback;
             private GlideRequests     glideRequests;
-            private int               selectionLimit;
+            private SelectionLimits   selectionLimit   = SelectionLimits.NO_LIMITS;
             private Set<RecipientId>  currentSelection;
+            private boolean           isMulti;
+            private boolean           hideCount;
 
   @Override
   public void onAttach(@NonNull Context context) {
@@ -206,9 +210,18 @@ public final class ContactSelectionListFragment extends LoggingFragment
       }
     });
 
-    swipeRefresh.setEnabled(requireActivity().getIntent().getBooleanExtra(REFRESHABLE, true));
+    Intent intent = requireActivity().getIntent();
+
+    swipeRefresh.setEnabled(intent.getBooleanExtra(REFRESHABLE, true));
+
+    hideCount      = intent.getBooleanExtra(HIDE_COUNT, false);
+    selectionLimit = intent.getParcelableExtra(SELECTION_LIMITS);
+    isMulti        = selectionLimit != null;
+
+    if (!isMulti) {
+      selectionLimit = SelectionLimits.NO_LIMITS;
+    }
 
-    selectionLimit   = requireActivity().getIntent().getIntExtra(SELECTION_LIMIT, NO_LIMIT);
     currentSelection = getCurrentSelection();
 
     updateGroupLimit(getChipCount());
@@ -217,12 +230,10 @@ public final class ContactSelectionListFragment extends LoggingFragment
   }
 
   private void updateGroupLimit(int chipCount) {
-    if (selectionLimit != NO_LIMIT) {
-      groupLimit.setText(String.format(Locale.getDefault(), "%d/%d", currentSelection.size() + chipCount, selectionLimit));
-      groupLimit.setVisibility(View.VISIBLE);
-    } else {
-      groupLimit.setVisibility(View.GONE);
-    }
+    int members = currentSelection.size() + chipCount;
+    groupLimit.setText(getResources().getQuantityString(R.plurals.ContactSelectionListFragment_d_members, members, members));
+    groupLimit.setVisibility(isMulti && !hideCount ? View.VISIBLE : View.GONE);
+    groupLimit.setWarning(selectionWarningLimitExceeded());
   }
 
   @Override
@@ -254,7 +265,7 @@ public final class ContactSelectionListFragment extends LoggingFragment
   }
 
   public boolean isMulti() {
-    return requireActivity().getIntent().getBooleanExtra(MULTI_SELECT, false);
+    return isMulti;
   }
 
   private void initializeCursor() {
@@ -264,7 +275,7 @@ public final class ContactSelectionListFragment extends LoggingFragment
                                                                 glideRequests,
                                                                 null,
                                                                 new ListClickListener(),
-                                                                isMulti(),
+                                                                isMulti,
                                                                 currentSelection);
 
     RecyclerViewConcatenateAdapterStickyHeader concatenateAdapter = new RecyclerViewConcatenateAdapterStickyHeader();
@@ -450,15 +461,14 @@ public final class ContactSelectionListFragment extends LoggingFragment
       SelectedContact selectedContact = contact.isUsernameType() ? SelectedContact.forUsername(contact.getRecipientId().orNull(), contact.getNumber())
                                                                  : SelectedContact.forPhone(contact.getRecipientId().orNull(), contact.getNumber());
 
-      if (isMulti() && Recipient.self().getId().equals(selectedContact.getOrCreateRecipientId(requireContext()))) {
+      if (isMulti && Recipient.self().getId().equals(selectedContact.getOrCreateRecipientId(requireContext()))) {
         Toast.makeText(requireContext(), R.string.ContactSelectionListFragment_you_do_not_need_to_add_yourself_to_the_group, Toast.LENGTH_SHORT).show();
         return;
       }
 
-      if (!isMulti() || !cursorRecyclerViewAdapter.isSelectedContact(selectedContact)) {
-        if (selectionLimitReached()) {
-          Toast.makeText(requireContext(), R.string.ContactSelectionListFragment_the_group_is_full, Toast.LENGTH_SHORT).show();
-          groupLimit.animate().scaleX(1.3f).scaleY(1.3f).setInterpolator(new CycleInterpolator(0.5f)).start();
+      if (!isMulti || !cursorRecyclerViewAdapter.isSelectedContact(selectedContact)) {
+        if (selectionHardLimitReached()) {
+          GroupLimitDialog.showHardLimitMessage(requireContext());
           return;
         }
 
@@ -486,7 +496,7 @@ public final class ContactSelectionListFragment extends LoggingFragment
               new AlertDialog.Builder(requireContext())
                              .setTitle(R.string.ContactSelectionListFragment_username_not_found)
                              .setMessage(getString(R.string.ContactSelectionListFragment_s_is_not_a_signal_user, contact.getNumber()))
-                             .setPositiveButton(R.string.ContactSelectionListFragment_okay, (dialog, which) -> dialog.dismiss())
+                             .setPositiveButton(android.R.string.ok, (dialog, which) -> dialog.dismiss())
                              .show();
             }
           });
@@ -508,16 +518,25 @@ public final class ContactSelectionListFragment extends LoggingFragment
         if (onContactSelectedListener != null) {
           onContactSelectedListener.onContactDeselected(contact.getRecipientId(), contact.getNumber());
         }
-      }}
+      }
+    }
   }
 
-  private boolean selectionLimitReached() {
-    return getChipCount() + currentSelection.size() >= selectionLimit;
+  private boolean selectionHardLimitReached() {
+    return getChipCount() + currentSelection.size() >= selectionLimit.getHardLimit();
+  }
+
+  private boolean selectionWarningLimitReachedExactly() {
+    return getChipCount() + currentSelection.size() == selectionLimit.getRecommendedLimit();
+  }
+
+  private boolean selectionWarningLimitExceeded() {
+    return getChipCount() + currentSelection.size() > selectionLimit.getRecommendedLimit();
   }
 
   private void markContactSelected(@NonNull SelectedContact selectedContact) {
     cursorRecyclerViewAdapter.addSelectedContact(selectedContact);
-    if (isMulti()) {
+    if (isMulti) {
       addChipForSelectedContact(selectedContact);
     }
   }
@@ -588,6 +607,9 @@ public final class ContactSelectionListFragment extends LoggingFragment
   private void addChip(@NonNull ContactChip chip) {
     chipGroup.addView(chip);
     updateGroupLimit(getChipCount());
+    if (selectionWarningLimitReachedExactly()) {
+      GroupLimitDialog.showRecommendedLimitMessage(requireContext());
+    }
   }
 
   private int getChipCount() {

app/src/main/java/org/thoughtcrime/securesms/GroupMembersDialog.java

@@ -28,7 +28,7 @@ public final class GroupMembersDialog {
   public void display() {
     AlertDialog dialog = new AlertDialog.Builder(fragmentActivity)
                                         .setTitle(R.string.ConversationActivity_group_members)
-                                        .setIconAttribute(R.attr.group_members_dialog_icon)
+                                        .setIcon(R.drawable.ic_group_24)
                                         .setCancelable(true)
                                         .setView(R.layout.dialog_group_members)
                                         .setPositiveButton(android.R.string.ok, null)

app/src/main/java/org/thoughtcrime/securesms/InviteActivity.java

@@ -27,6 +27,7 @@ import org.thoughtcrime.securesms.components.ContactFilterToolbar.OnFilterChange
 import org.thoughtcrime.securesms.contacts.ContactsCursorLoader.DisplayMode;
 import org.thoughtcrime.securesms.contacts.SelectedContact;
 import org.thoughtcrime.securesms.database.DatabaseFactory;
+import org.thoughtcrime.securesms.groups.SelectionLimits;
 import org.thoughtcrime.securesms.recipients.Recipient;
 import org.thoughtcrime.securesms.recipients.RecipientId;
 import org.thoughtcrime.securesms.sms.MessageSender;
@@ -62,7 +63,8 @@ public class InviteActivity extends PassphraseRequiredActivity implements Contac
   @Override
   protected void onCreate(Bundle savedInstanceState, boolean ready) {
     getIntent().putExtra(ContactSelectionListFragment.DISPLAY_MODE, DisplayMode.FLAG_SMS);
-    getIntent().putExtra(ContactSelectionListFragment.MULTI_SELECT, true);
+    getIntent().putExtra(ContactSelectionListFragment.SELECTION_LIMITS, SelectionLimits.NO_LIMITS);
+    getIntent().putExtra(ContactSelectionListFragment.HIDE_COUNT, true);
     getIntent().putExtra(ContactSelectionListFragment.REFRESHABLE, false);
 
     setContentView(R.layout.invite_activity);
@@ -162,10 +164,10 @@ public class InviteActivity extends PassphraseRequiredActivity implements Contac
   private void setPrimaryColorsToolbarNormal() {
     primaryToolbar.setBackgroundColor(0);
     primaryToolbar.getNavigationIcon().setColorFilter(null);
-    primaryToolbar.setTitleTextColor(ThemeUtil.getThemedColor(this, R.attr.title_text_color_primary));
+    primaryToolbar.setTitleTextColor(ContextCompat.getColor(this, R.color.signal_text_primary));
 
     if (Build.VERSION.SDK_INT >= 23) {
-      getWindow().setStatusBarColor(ThemeUtil.getThemedColor(this, android.R.attr.statusBarColor));
+      WindowUtil.setStatusBarColor(getWindow(), ThemeUtil.getThemedColor(this, android.R.attr.statusBarColor));
       getWindow().setNavigationBarColor(ThemeUtil.getThemedColor(this, android.R.attr.navigationBarColor));
       WindowUtil.setLightStatusBarFromTheme(this);
     }
@@ -175,11 +177,11 @@ public class InviteActivity extends PassphraseRequiredActivity implements Contac
 
   private void setPrimaryColorsToolbarForSms() {
     primaryToolbar.setBackgroundColor(ContextCompat.getColor(this, R.color.core_ultramarine));
-    primaryToolbar.getNavigationIcon().setColorFilter(ThemeUtil.getThemedColor(this, R.attr.conversation_subtitle_color), PorterDuff.Mode.SRC_IN);
-    primaryToolbar.setTitleTextColor(ThemeUtil.getThemedColor(this, R.attr.conversation_title_color));
+    primaryToolbar.getNavigationIcon().setColorFilter(ContextCompat.getColor(this, R.color.signal_text_toolbar_subtitle), PorterDuff.Mode.SRC_IN);
+    primaryToolbar.setTitleTextColor(ContextCompat.getColor(this, R.color.signal_text_toolbar_title));
 
     if (Build.VERSION.SDK_INT >= 23) {
-      getWindow().setStatusBarColor(ContextCompat.getColor(this, R.color.core_ultramarine));
+      WindowUtil.setStatusBarColor(getWindow(), ContextCompat.getColor(this, R.color.core_ultramarine));
       WindowUtil.clearLightStatusBar(getWindow());
     }
 

app/src/main/java/org/thoughtcrime/securesms/MainActivity.java

@@ -1,17 +1,23 @@
 package org.thoughtcrime.securesms;
 
+import android.app.Activity;
 import android.content.Intent;
 import android.net.Uri;
 import android.os.Bundle;
 
 import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 
+import org.thoughtcrime.securesms.tracing.Trace;
 import org.thoughtcrime.securesms.util.CommunicationActions;
 import org.thoughtcrime.securesms.util.DynamicNoActionBarTheme;
 import org.thoughtcrime.securesms.util.DynamicTheme;
 
+@Trace
 public class MainActivity extends PassphraseRequiredActivity {
 
+  public static final int RESULT_CONFIG_CHANGED = Activity.RESULT_FIRST_USER + 901;
+
   private final DynamicTheme  dynamicTheme = new DynamicNoActionBarTheme();
   private final MainNavigator navigator    = new MainNavigator(this);
 
@@ -50,6 +56,14 @@ public class MainActivity extends PassphraseRequiredActivity {
     }
   }
 
+  @Override
+  protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
+    super.onActivityResult(requestCode, resultCode, data);
+    if (requestCode == MainNavigator.REQUEST_CONFIG_CHANGES && resultCode == RESULT_CONFIG_CHANGED) {
+      recreate();
+    }
+  }
+
   public @NonNull MainNavigator getNavigator() {
     return navigator;
   }

app/src/main/java/org/thoughtcrime/securesms/MainNavigator.java

@@ -18,6 +18,8 @@ import org.thoughtcrime.securesms.recipients.RecipientId;
 
 public class MainNavigator {
 
+  public static final int REQUEST_CONFIG_CHANGES = 901;
+
   private final MainActivity activity;
 
   public MainNavigator(@NonNull MainActivity activity) {
@@ -65,10 +67,9 @@ public class MainNavigator {
 
   public void goToAppSettings() {
     Intent intent = new Intent(activity, ApplicationPreferencesActivity.class);
-    activity.startActivity(intent);
+    activity.startActivityForResult(intent, REQUEST_CONFIG_CHANGES);
   }
 
-
   public void goToArchiveList() {
     getFragmentManager().beginTransaction()
                         .setCustomAnimations(R.anim.slide_from_end, R.anim.slide_to_start, R.anim.slide_from_start, R.anim.slide_to_end)

app/src/main/java/org/thoughtcrime/securesms/MediaPreviewActivity.java

@@ -18,12 +18,14 @@ package org.thoughtcrime.securesms;
 
 import android.Manifest;
 import android.annotation.SuppressLint;
+import android.content.ActivityNotFoundException;
 import android.content.Context;
 import android.content.Intent;
 import android.database.ContentObserver;
 import android.database.Cursor;
 import android.net.Uri;
 import android.os.AsyncTask;
+import android.os.Build;
 import android.os.Bundle;
 import android.os.Handler;
 import android.view.Menu;
@@ -37,6 +39,8 @@ import android.widget.Toast;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.appcompat.app.AlertDialog;
+import androidx.appcompat.app.AppCompatDelegate;
+import androidx.core.app.ShareCompat;
 import androidx.core.util.Pair;
 import androidx.core.view.ViewCompat;
 import androidx.fragment.app.Fragment;
@@ -61,6 +65,7 @@ import org.thoughtcrime.securesms.mediapreview.MediaPreviewFragment;
 import org.thoughtcrime.securesms.mediapreview.MediaPreviewViewModel;
 import org.thoughtcrime.securesms.mediapreview.MediaRailAdapter;
 import org.thoughtcrime.securesms.mms.GlideApp;
+import org.thoughtcrime.securesms.mms.PartAuthority;
 import org.thoughtcrime.securesms.permissions.Permissions;
 import org.thoughtcrime.securesms.recipients.Recipient;
 import org.thoughtcrime.securesms.recipients.RecipientId;
@@ -138,6 +143,12 @@ public final class MediaPreviewActivity extends PassphraseRequiredActivity
     return intent;
   }
 
+  @Override
+  protected void attachBaseContext(@NonNull Context newBase) {
+    getDelegate().setLocalNightMode(AppCompatDelegate.MODE_NIGHT_YES);
+    super.attachBaseContext(newBase);
+  }
+
   @SuppressWarnings("ConstantConditions")
   @Override
   protected void onCreate(Bundle bundle, boolean ready) {
@@ -194,7 +205,7 @@ public final class MediaPreviewActivity extends PassphraseRequiredActivity
 
       if (threadRecipient != null) {
         if (mediaItem.outgoing || threadRecipient.isGroup()) {
-          if (threadRecipient.isLocalNumber()) {
+          if (threadRecipient.isSelf()) {
             from = getString(R.string.note_to_self);
           } else {
             to = threadRecipient.getDisplayName(this);
@@ -378,6 +389,27 @@ public final class MediaPreviewActivity extends PassphraseRequiredActivity
     }
   }
 
+  private void share() {
+    MediaItem mediaItem = getCurrentMediaItem();
+
+    if (mediaItem != null) {
+      Uri    publicUri   = PartAuthority.getAttachmentPublicUri(mediaItem.uri);
+      String mimeType    = Intent.normalizeMimeType(mediaItem.type);
+      Intent shareIntent = ShareCompat.IntentBuilder.from(this)
+                                                    .setStream(publicUri)
+                                                    .setType(mimeType)
+                                                    .createChooserIntent()
+                                                    .addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
+
+      try {
+        startActivity(shareIntent);
+      } catch (ActivityNotFoundException e) {
+        Log.w(TAG, "No activity existed to share the media.", e);
+        Toast.makeText(this, R.string.MediaPreviewActivity_cant_find_an_app_able_to_share_this_media, Toast.LENGTH_LONG).show();
+      }
+    }
+  }
+
   @SuppressWarnings("CodeBlock2Expr")
   @SuppressLint("InlinedApi")
   private void saveToDisk() {
@@ -417,7 +449,7 @@ public final class MediaPreviewActivity extends PassphraseRequiredActivity
     }
 
     AlertDialog.Builder builder = new AlertDialog.Builder(this);
-    builder.setIconAttribute(R.attr.dialog_alert_icon);
+    builder.setIcon(R.drawable.ic_warning);
     builder.setTitle(R.string.MediaPreviewActivity_media_delete_confirmation_title);
     builder.setMessage(R.string.MediaPreviewActivity_media_delete_confirmation_message);
     builder.setCancelable(true);
@@ -455,6 +487,9 @@ public final class MediaPreviewActivity extends PassphraseRequiredActivity
       menu.findItem(R.id.delete).setVisible(false);
     }
 
+    // Restricted to API26 because of MemoryFileUtil not supporting lower API levels well
+    menu.findItem(R.id.media_preview__share).setVisible(Build.VERSION.SDK_INT >= 26);
+
     if (cameFromAllMedia) {
       menu.findItem(R.id.media_preview__overview).setVisible(false);
     }
@@ -464,16 +499,17 @@ public final class MediaPreviewActivity extends PassphraseRequiredActivity
   }
 
   @Override
-  public boolean onOptionsItemSelected(MenuItem item) {
+  public boolean onOptionsItemSelected(@NonNull MenuItem item) {
     super.onOptionsItemSelected(item);
 
-    switch (item.getItemId()) {
-      case R.id.media_preview__overview: showOverview(); return true;
-      case R.id.media_preview__forward:  forward();      return true;
-      case R.id.save:                    saveToDisk();   return true;
-      case R.id.delete:                  deleteMedia();  return true;
-      case android.R.id.home:            finish();       return true;
-    }
+    int itemId = item.getItemId();
+
+    if (itemId == R.id.media_preview__overview) { showOverview(); return true; }
+    if (itemId == R.id.media_preview__forward)  { forward();      return true; }
+    if (itemId == R.id.media_preview__share)    { share();        return true; }
+    if (itemId == R.id.save)                    { saveToDisk();   return true; }
+    if (itemId == R.id.delete)                  { deleteMedia();  return true; }
+    if (itemId == android.R.id.home)            { finish();       return true; }
 
     return false;
   }

app/src/main/java/org/thoughtcrime/securesms/NewConversationActivity.java

@@ -100,7 +100,7 @@ public class NewConversationActivity extends ContactSelectionActivity
 
   private void launch(Recipient recipient) {
     Intent intent = new Intent(this, ConversationActivity.class);
-    intent.putExtra(ConversationActivity.RECIPIENT_EXTRA, recipient.getId());
+    intent.putExtra(ConversationActivity.RECIPIENT_EXTRA, recipient.getId().serialize());
     intent.putExtra(ConversationActivity.TEXT_EXTRA, getIntent().getStringExtra(ConversationActivity.TEXT_EXTRA));
     intent.setDataAndType(getIntent().getData(), getIntent().getType());
 

app/src/main/java/org/thoughtcrime/securesms/PassphraseCreateActivity.java

@@ -66,12 +66,6 @@ public class PassphraseCreateActivity extends PassphraseActivity {
       IdentityKeyUtil.generateIdentityKeys(PassphraseCreateActivity.this);
       VersionTracker.updateLastSeenVersion(PassphraseCreateActivity.this);
 
-      TextSecurePreferences.setLastExperienceVersionCode(PassphraseCreateActivity.this, Util.getCanonicalVersionCode());
-      TextSecurePreferences.setPasswordDisabled(PassphraseCreateActivity.this, true);
-      TextSecurePreferences.setReadReceiptsEnabled(PassphraseCreateActivity.this, true);
-      TextSecurePreferences.setTypingIndicatorsEnabled(PassphraseCreateActivity.this, true);
-      TextSecurePreferences.setHasSeenWelcomeScreen(PassphraseCreateActivity.this, false);
-
       return null;
     }
 

app/src/main/java/org/thoughtcrime/securesms/PushContactSelectionActivity.java

@@ -42,7 +42,6 @@ public class PushContactSelectionActivity extends ContactSelectionActivity {
 
   @Override
   protected void onCreate(Bundle icicle, boolean ready) {
-    getIntent().putExtra(ContactSelectionListFragment.MULTI_SELECT, true);
     super.onCreate(icicle, ready);
 
     initializeToolbar();

app/src/main/java/org/thoughtcrime/securesms/SmsSendtoActivity.java

@@ -53,7 +53,7 @@ public class SmsSendtoActivity extends Activity {
       nextIntent = new Intent(this, ConversationActivity.class);
       nextIntent.putExtra(ConversationActivity.TEXT_EXTRA, destination.getBody());
       nextIntent.putExtra(ConversationActivity.THREAD_ID_EXTRA, threadId);
-      nextIntent.putExtra(ConversationActivity.RECIPIENT_EXTRA, recipient.getId());
+      nextIntent.putExtra(ConversationActivity.RECIPIENT_EXTRA, recipient.getId().serialize());
     }
     return nextIntent;
   }

app/src/main/java/org/thoughtcrime/securesms/VerifyIdentityActivity.java

@@ -87,6 +87,7 @@ import org.thoughtcrime.securesms.util.IdentityUtil;
 import org.thoughtcrime.securesms.util.TextSecurePreferences;
 import org.thoughtcrime.securesms.util.Util;
 import org.thoughtcrime.securesms.util.ViewUtil;
+import org.thoughtcrime.securesms.util.WindowUtil;
 import org.whispersystems.libsignal.IdentityKey;
 import org.whispersystems.libsignal.fingerprint.Fingerprint;
 import org.whispersystems.libsignal.fingerprint.FingerprintParsingException;
@@ -228,9 +229,7 @@ public class VerifyIdentityActivity extends PassphraseRequiredActivity implement
   private void setActionBarNotificationBarColor(MaterialColor color) {
     getSupportActionBar().setBackgroundDrawable(new ColorDrawable(color.toActionBarColor(this)));
 
-    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
-      getWindow().setStatusBarColor(color.toStatusBarColor(this));
-    }
+    WindowUtil.setStatusBarColor(getWindow(), color.toStatusBarColor(this));
   }
 
   public static class VerifyDisplayFragment extends Fragment implements CompoundButton.OnCheckedChangeListener {

app/src/main/java/org/thoughtcrime/securesms/WebRtcCallActivity.java

@@ -207,6 +207,7 @@ public class WebRtcCallActivity extends AppCompatActivity implements SafetyNumbe
   private void initializeResources() {
     callScreen = findViewById(R.id.callScreen);
     callScreen.setControlsListener(new ControlsListener());
+    callScreen.setEventListener(new EventListener());
   }
 
   private void initializeViewModel() {
@@ -381,8 +382,12 @@ public class WebRtcCallActivity extends AppCompatActivity implements SafetyNumbe
     startService(intent);
   }
 
-  private void handleOutgoingCall() {
-    callScreen.setStatus(getString(R.string.WebRtcCallActivity__calling));
+  private void handleOutgoingCall(@NonNull WebRtcViewModel event) {
+    if (event.getGroupState().isNotIdle()) {
+      callScreen.setStatusFromGroupCallState(event.getGroupState());
+    } else {
+      callScreen.setStatus(getString(R.string.WebRtcCallActivity__calling));
+    }
   }
 
   private void handleTerminate(@NonNull Recipient recipient, @NonNull HangupMessage.Type hangupType) {
@@ -408,8 +413,11 @@ public class WebRtcCallActivity extends AppCompatActivity implements SafetyNumbe
     delayedFinish(WebRtcCallService.BUSY_TONE_LENGTH);
   }
 
-  private void handleCallConnected() {
+  private void handleCallConnected(@NonNull WebRtcViewModel event) {
     getWindow().addFlags(WindowManager.LayoutParams.FLAG_IGNORE_CHEEK_PRESSES);
+    if (event.getGroupState().isNotIdleOrConnected()) {
+      callScreen.setStatusFromGroupCallState(event.getGroupState());
+    }
   }
 
   private void handleRecipientUnavailable() {
@@ -428,7 +436,7 @@ public class WebRtcCallActivity extends AppCompatActivity implements SafetyNumbe
     if (isFinishing()) return; // XXX Stuart added this check above, not sure why, so I'm repeating in ignorance. - moxie
     new AlertDialog.Builder(this)
                    .setTitle(R.string.RedPhone_number_not_registered)
-                   .setIconAttribute(R.attr.dialog_alert_icon)
+                   .setIcon(R.drawable.ic_warning)
                    .setMessage(R.string.RedPhone_the_number_you_dialed_does_not_support_secure_voice)
                    .setCancelable(true)
                    .setPositiveButton(R.string.RedPhone_got_it, (d, w) -> handleTerminate(event.getRecipient(), HangupMessage.Type.NORMAL))
@@ -451,7 +459,8 @@ public class WebRtcCallActivity extends AppCompatActivity implements SafetyNumbe
   public void onSendAnywayAfterSafetyNumberChange() {
     Intent intent = new Intent(WebRtcCallActivity.this, WebRtcCallService.class);
     intent.setAction(WebRtcCallService.ACTION_OUTGOING_CALL)
-          .putExtra(WebRtcCallService.EXTRA_REMOTE_PEER, new RemotePeer(viewModel.getRecipient().getId()));
+          .putExtra(WebRtcCallService.EXTRA_REMOTE_PEER, new RemotePeer(viewModel.getRecipient().getId()))
+          .putExtra(WebRtcCallService.EXTRA_OFFER_TYPE, OfferMessage.Type.AUDIO_CALL.getCode());
 
     startService(intent);
   }
@@ -485,7 +494,8 @@ public class WebRtcCallActivity extends AppCompatActivity implements SafetyNumbe
     callScreen.setRecipient(event.getRecipient());
 
     switch (event.getState()) {
-      case CALL_CONNECTED:          handleCallConnected();                                                     break;
+      case CALL_PRE_JOIN:           handleCallPreJoin(event);                                                  break;
+      case CALL_CONNECTED:          handleCallConnected(event);                                                break;
       case NETWORK_FAILURE:         handleServerFailure();                                                     break;
       case CALL_RINGING:            handleCallRinging();                                                       break;
       case CALL_DISCONNECTED:       handleTerminate(event.getRecipient(), HangupMessage.Type.NORMAL);          break;
@@ -495,7 +505,7 @@ public class WebRtcCallActivity extends AppCompatActivity implements SafetyNumbe
       case CALL_NEEDS_PERMISSION:   handleTerminate(event.getRecipient(), HangupMessage.Type.NEED_PERMISSION); break;
       case NO_SUCH_USER:            handleNoSuchUser(event);                                                   break;
       case RECIPIENT_UNAVAILABLE:   handleRecipientUnavailable();                                              break;
-      case CALL_OUTGOING:           handleOutgoingCall();                                                      break;
+      case CALL_OUTGOING:           handleOutgoingCall(event);                                                 break;
       case CALL_BUSY:               handleCallBusy();                                                          break;
       case UNTRUSTED_IDENTITY:      handleUntrustedIdentity(event);                                            break;
     }
@@ -510,6 +520,12 @@ public class WebRtcCallActivity extends AppCompatActivity implements SafetyNumbe
     }
   }
 
+  private void handleCallPreJoin(@NonNull WebRtcViewModel event) {
+    if (event.getGroupState().isNotIdle()) {
+      callScreen.setStatusFromGroupCallState(event.getGroupState());
+    }
+  }
+
   private final class ControlsListener implements WebRtcCallView.ControlsListener {
 
     @Override
@@ -604,4 +620,12 @@ public class WebRtcCallActivity extends AppCompatActivity implements SafetyNumbe
     }
   }
 
+  private class EventListener implements WebRtcCallView.EventListener {
+    @Override
+    public void onPotentialLayoutChange() {
+      Intent intent = new Intent(WebRtcCallActivity.this, WebRtcCallService.class);
+      intent.setAction(WebRtcCallService.ACTION_GROUP_UPDATE_RENDERED_RESOLUTIONS);
+      startService(intent);
+    }
+  }
 }

app/src/main/java/org/thoughtcrime/securesms/backup/BackupDialog.java

@@ -6,6 +6,8 @@ import android.content.ClipboardManager;
 import android.content.Context;
 import android.content.Intent;
 import android.net.Uri;
+import android.os.Build;
+import android.provider.DocumentsContract;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.widget.Button;
@@ -21,7 +23,6 @@ import androidx.appcompat.app.AlertDialog;
 import androidx.fragment.app.Fragment;
 
 import org.thoughtcrime.securesms.R;
-import org.thoughtcrime.securesms.components.SwitchPreferenceCompat;
 import org.thoughtcrime.securesms.keyvalue.SignalStore;
 import org.thoughtcrime.securesms.logging.Log;
 import org.thoughtcrime.securesms.registration.fragments.RestoreBackupFragment;
@@ -31,8 +32,6 @@ import org.thoughtcrime.securesms.util.TextSecurePreferences;
 import org.thoughtcrime.securesms.util.Util;
 import org.thoughtcrime.securesms.util.text.AfterTextChanged;
 
-import java.util.Objects;
-
 public class BackupDialog {
 
   private static final String TAG = Log.tag(BackupDialog.class);
@@ -119,6 +118,10 @@ public class BackupDialog {
                    .setPositiveButton(R.string.BackupDialog_choose_folder, ((dialog, which) -> {
                      Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT_TREE);
 
+                     if (Build.VERSION.SDK_INT >= 26) {
+                       intent.putExtra(DocumentsContract.EXTRA_INITIAL_URI, SignalStore.settings().getLatestSignalBackupDirectory());
+                     }
+
                      intent.addFlags(Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION |
                                      Intent.FLAG_GRANT_WRITE_URI_PERMISSION       |
                                      Intent.FLAG_GRANT_READ_URI_PERMISSION);

app/src/main/java/org/thoughtcrime/securesms/backup/BackupFileIOError.java

@@ -0,0 +1,77 @@
+package org.thoughtcrime.securesms.backup;
+
+import android.app.Notification;
+import android.app.PendingIntent;
+import android.content.Context;
+import android.content.Intent;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.annotation.StringRes;
+import androidx.core.app.NotificationCompat;
+import androidx.core.app.NotificationManagerCompat;
+
+import org.thoughtcrime.securesms.ApplicationPreferencesActivity;
+import org.thoughtcrime.securesms.R;
+import org.thoughtcrime.securesms.notifications.NotificationChannels;
+
+import java.io.IOException;
+
+public enum BackupFileIOError {
+  ACCESS_ERROR(R.string.LocalBackupJobApi29_backup_failed, R.string.LocalBackupJobApi29_your_backup_directory_has_been_deleted_or_moved),
+  FILE_TOO_LARGE(R.string.LocalBackupJobApi29_backup_failed, R.string.LocalBackupJobApi29_your_backup_file_is_too_large),
+  NOT_ENOUGH_SPACE(R.string.LocalBackupJobApi29_backup_failed, R.string.LocalBackupJobApi29_there_is_not_enough_space),
+  UNKNOWN(R.string.LocalBackupJobApi29_backup_failed, R.string.LocalBackupJobApi29_tap_to_manage_backups);
+
+  private static final short BACKUP_FAILED_ID = 31321;
+
+  private final @StringRes int titleId;
+  private final @StringRes int messageId;
+
+  BackupFileIOError(@StringRes int titleId, @StringRes int messageId) {
+    this.titleId     = titleId;
+    this.messageId   = messageId;
+  }
+
+  public static void clearNotification(@NonNull Context context) {
+    NotificationManagerCompat.from(context).cancel(BACKUP_FAILED_ID);
+  }
+
+  public void postNotification(@NonNull Context context) {
+    Intent intent = new Intent(context, ApplicationPreferencesActivity.class);
+
+    intent.putExtra(ApplicationPreferencesActivity.LAUNCH_TO_BACKUPS_FRAGMENT, true);
+
+    PendingIntent pendingIntent           = PendingIntent.getActivity(context, -1, intent, 0);
+    Notification backupFailedNotification = new NotificationCompat.Builder(context, NotificationChannels.FAILURES)
+                                                                  .setSmallIcon(R.drawable.ic_signal_backup)
+                                                                  .setContentTitle(context.getString(titleId))
+                                                                  .setContentText(context.getString(messageId))
+                                                                  .setContentIntent(pendingIntent)
+                                                                  .build();
+
+    NotificationManagerCompat.from(context)
+                             .notify(BACKUP_FAILED_ID, backupFailedNotification);
+  }
+
+  public static void postNotificationForException(@NonNull Context context, @NonNull IOException e, int runAttempt) {
+    BackupFileIOError error = getFromException(e);
+
+    if (error != null) {
+      error.postNotification(context);
+    }
+
+    if (error == null && runAttempt > 0) {
+      UNKNOWN.postNotification(context);
+    }
+  }
+
+  private static @Nullable BackupFileIOError getFromException(@NonNull IOException e) {
+    if (e.getMessage() != null) {
+           if (e.getMessage().contains("EFBIG"))  return FILE_TOO_LARGE;
+      else if (e.getMessage().contains("ENOSPC")) return NOT_ENOUGH_SPACE;
+    }
+
+    return null;
+  }
+}

app/src/main/java/org/thoughtcrime/securesms/backup/FullBackupExporter.java

@@ -12,7 +12,6 @@ import androidx.documentfile.provider.DocumentFile;
 
 import com.annimon.stream.function.Consumer;
 import com.annimon.stream.function.Predicate;
-import com.google.android.collect.Sets;
 import com.google.protobuf.ByteString;
 
 import net.sqlcipher.database.SQLiteDatabase;
@@ -38,6 +37,7 @@ import org.thoughtcrime.securesms.database.StickerDatabase;
 import org.thoughtcrime.securesms.logging.Log;
 import org.thoughtcrime.securesms.profiles.AvatarHelper;
 import org.thoughtcrime.securesms.util.Conversions;
+import org.thoughtcrime.securesms.util.SetUtil;
 import org.thoughtcrime.securesms.util.Stopwatch;
 import org.thoughtcrime.securesms.util.Util;
 import org.whispersystems.libsignal.kdf.HKDFv3;
@@ -69,7 +69,7 @@ public class FullBackupExporter extends FullBackupBase {
   @SuppressWarnings("unused")
   private static final String TAG = FullBackupExporter.class.getSimpleName();
 
-  private static final Set<String> BLACKLISTED_TABLES = Sets.newHashSet(
+  private static final Set<String> BLACKLISTED_TABLES = SetUtil.newHashSet(
     SignedPreKeyDatabase.TABLE_NAME,
     OneTimePreKeyDatabase.TABLE_NAME,
     SessionDatabase.TABLE_NAME,

app/src/main/java/org/thoughtcrime/securesms/blocked/BlockedUsersActivity.java

@@ -0,0 +1,171 @@
+package org.thoughtcrime.securesms.blocked;
+
+import android.app.AlertDialog;
+import android.content.Intent;
+import android.graphics.Color;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.ViewSwitcher;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.StringRes;
+import androidx.appcompat.widget.Toolbar;
+import androidx.fragment.app.Fragment;
+import androidx.lifecycle.ViewModelProviders;
+
+import com.google.android.material.snackbar.Snackbar;
+
+import org.thoughtcrime.securesms.ContactSelectionListFragment;
+import org.thoughtcrime.securesms.PassphraseRequiredActivity;
+import org.thoughtcrime.securesms.R;
+import org.thoughtcrime.securesms.components.ContactFilterToolbar;
+import org.thoughtcrime.securesms.contacts.ContactsCursorLoader;
+import org.thoughtcrime.securesms.recipients.Recipient;
+import org.thoughtcrime.securesms.recipients.RecipientId;
+import org.thoughtcrime.securesms.util.DynamicNoActionBarTheme;
+import org.thoughtcrime.securesms.util.DynamicTheme;
+import org.whispersystems.libsignal.util.guava.Optional;
+
+public class BlockedUsersActivity extends PassphraseRequiredActivity implements BlockedUsersFragment.Listener, ContactSelectionListFragment.OnContactSelectedListener {
+
+  private static final String CONTACT_SELECTION_FRAGMENT = "Contact.Selection.Fragment";
+
+  private final DynamicTheme dynamicTheme = new DynamicNoActionBarTheme();
+
+  private BlockedUsersViewModel viewModel;
+
+  @Override
+  protected void onCreate(Bundle savedInstanceState, boolean ready) {
+    super.onCreate(savedInstanceState, ready);
+
+    dynamicTheme.onCreate(this);
+
+    setContentView(R.layout.blocked_users_activity);
+
+    BlockedUsersRepository        repository = new BlockedUsersRepository(this);
+    BlockedUsersViewModel.Factory factory    = new BlockedUsersViewModel.Factory(repository);
+
+    viewModel = ViewModelProviders.of(this, factory).get(BlockedUsersViewModel.class);
+
+    ViewSwitcher         viewSwitcher         = findViewById(R.id.toolbar_switcher);
+    Toolbar              toolbar              = findViewById(R.id.toolbar);
+    ContactFilterToolbar contactFilterToolbar = findViewById(R.id.filter_toolbar);
+    View                 container            = findViewById(R.id.fragment_container);
+
+    toolbar.setNavigationOnClickListener(unused -> onBackPressed());
+    contactFilterToolbar.setNavigationOnClickListener(unused -> onBackPressed());
+    contactFilterToolbar.setOnFilterChangedListener(query -> {
+      Fragment fragment = getSupportFragmentManager().findFragmentByTag(CONTACT_SELECTION_FRAGMENT);
+      if (fragment != null) {
+        ((ContactSelectionListFragment) fragment).setQueryFilter(query);
+      }
+    });
+    contactFilterToolbar.setHint(R.string.BlockedUsersActivity__add_blocked_user);
+
+    //noinspection CodeBlock2Expr
+    getSupportFragmentManager().addOnBackStackChangedListener(() -> {
+      viewSwitcher.setDisplayedChild(getSupportFragmentManager().getBackStackEntryCount());
+
+      if (getSupportFragmentManager().getBackStackEntryCount() == 1) {
+        contactFilterToolbar.focusAndShowKeyboard();
+      }
+    });
+
+    getSupportFragmentManager().beginTransaction()
+                               .add(R.id.fragment_container, new BlockedUsersFragment())
+                               .commit();
+
+    viewModel.getEvents().observe(this, event -> handleEvent(container, event));
+  }
+
+  @Override
+  protected void onResume() {
+    super.onResume();
+
+    dynamicTheme.onResume(this);
+  }
+
+  @Override
+  public boolean onBeforeContactSelected(Optional<RecipientId> recipientId, String number) {
+    final String displayName = recipientId.transform(id -> Recipient.resolved(id).getDisplayName(this)).or(number);
+
+    AlertDialog confirmationDialog = new AlertDialog.Builder(BlockedUsersActivity.this)
+                                                    .setTitle(R.string.BlockedUsersActivity__block_user)
+                                                    .setMessage(getString(R.string.BlockedUserActivity__s_will_not_be_able_to, displayName))
+                                                    .setPositiveButton(R.string.BlockedUsersActivity__block, (dialog, which) -> {
+                                                      if (recipientId.isPresent()) {
+                                                        viewModel.block(recipientId.get());
+                                                      } else {
+                                                        viewModel.createAndBlock(number);
+                                                      }
+                                                      dialog.dismiss();
+                                                      onBackPressed();
+                                                    })
+                                                    .setNegativeButton(android.R.string.cancel, (dialog, which) -> dialog.dismiss())
+                                                    .setCancelable(true)
+                                                    .create();
+
+    confirmationDialog.setOnShowListener(dialog -> {
+      confirmationDialog.getButton(AlertDialog.BUTTON_POSITIVE).setTextColor(Color.RED);
+    });
+
+    confirmationDialog.show();
+
+    return false;
+  }
+
+  @Override
+  public void onContactDeselected(Optional<RecipientId> recipientId, String number) {
+
+  }
+
+  @Override
+  public void handleAddUserToBlockedList() {
+    ContactSelectionListFragment fragment = new ContactSelectionListFragment();
+    Intent                       intent   = getIntent();
+
+    fragment.setOnContactSelectedListener(this);
+
+    intent.putExtra(ContactSelectionListFragment.REFRESHABLE, false);
+    intent.putExtra(ContactSelectionListFragment.SELECTION_LIMITS, 1);
+    intent.putExtra(ContactSelectionListFragment.HIDE_COUNT, true);
+    intent.putExtra(ContactSelectionListFragment.DISPLAY_MODE,
+                    ContactsCursorLoader.DisplayMode.FLAG_PUSH            |
+                    ContactsCursorLoader.DisplayMode.FLAG_SMS             |
+                    ContactsCursorLoader.DisplayMode.FLAG_ACTIVE_GROUPS   |
+                    ContactsCursorLoader.DisplayMode.FLAG_INACTIVE_GROUPS |
+                    ContactsCursorLoader.DisplayMode.FLAG_BLOCK);
+
+    getSupportFragmentManager().beginTransaction()
+                               .replace(R.id.fragment_container, fragment, CONTACT_SELECTION_FRAGMENT)
+                               .addToBackStack(null)
+                               .commit();
+  }
+
+  private void handleEvent(@NonNull View view, @NonNull BlockedUsersViewModel.Event event) {
+    final String displayName;
+
+    if (event.getRecipient() == null) {
+      displayName = event.getNumber();
+    } else {
+      displayName = event.getRecipient().getDisplayName(this);
+    }
+
+    final @StringRes int messageResId;
+    switch (event.getEventType()) {
+      case BLOCK_SUCCEEDED:
+        messageResId = R.string.BlockedUsersActivity__s_has_been_blocked;
+        break;
+      case BLOCK_FAILED:
+        messageResId = R.string.BlockedUsersActivity__failed_to_block_s;
+        break;
+      case UNBLOCK_SUCCEEDED:
+        messageResId = R.string.BlockedUsersActivity__s_has_been_unblocked;
+        break;
+      default:
+        throw new IllegalArgumentException("Unsupported event type " + event);
+    }
+
+    Snackbar.make(view, getString(messageResId, displayName), Snackbar.LENGTH_SHORT).show();
+  }
+}

app/src/main/java/org/thoughtcrime/securesms/blocked/BlockedUsersAdapter.java

@@ -0,0 +1,96 @@
+package org.thoughtcrime.securesms.blocked;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.core.util.Consumer;
+import androidx.recyclerview.widget.DiffUtil;
+import androidx.recyclerview.widget.ListAdapter;
+import androidx.recyclerview.widget.RecyclerView;
+
+import org.thoughtcrime.securesms.R;
+import org.thoughtcrime.securesms.components.AvatarImageView;
+import org.thoughtcrime.securesms.recipients.Recipient;
+
+import java.util.Objects;
+
+final class BlockedUsersAdapter extends ListAdapter<Recipient, BlockedUsersAdapter.ViewHolder> {
+
+  private final RecipientClickedListener recipientClickedListener;
+
+  BlockedUsersAdapter(@NonNull RecipientClickedListener recipientClickedListener) {
+    super(new RecipientDiffCallback());
+
+    this.recipientClickedListener = recipientClickedListener;
+  }
+
+  @Override
+  public @NonNull ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+    return new ViewHolder(LayoutInflater.from(parent.getContext()).inflate(R.layout.blocked_users_adapter_item, parent, false),
+                          position -> recipientClickedListener.onRecipientClicked(Objects.requireNonNull(getItem(position))));
+  }
+
+  @Override
+  public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
+    holder.bind(Objects.requireNonNull(getItem(position)));
+  }
+
+  static final class ViewHolder extends RecyclerView.ViewHolder {
+
+    private final AvatarImageView avatar;
+    private final TextView        displayName;
+    private final TextView        numberOrUsername;
+
+    public ViewHolder(@NonNull View itemView, Consumer<Integer> clickConsumer) {
+      super(itemView);
+
+      this.avatar           = itemView.findViewById(R.id.avatar);
+      this.displayName      = itemView.findViewById(R.id.display_name);
+      this.numberOrUsername = itemView.findViewById(R.id.number_or_username);
+
+      itemView.setOnClickListener(unused -> {
+        if (getAdapterPosition() != RecyclerView.NO_POSITION) {
+          clickConsumer.accept(getAdapterPosition());
+        }
+      });
+    }
+
+    public void bind(@NonNull Recipient recipient) {
+      avatar.setAvatar(recipient);
+      displayName.setText(recipient.getDisplayName(itemView.getContext()));
+
+      if (recipient.hasAUserSetDisplayName(itemView.getContext())) {
+        String identifier = recipient.getE164().or(recipient.getUsername()).orNull();
+
+        if (identifier != null) {
+          numberOrUsername.setText(identifier);
+          numberOrUsername.setVisibility(View.VISIBLE);
+        } else {
+          numberOrUsername.setVisibility(View.GONE);
+        }
+      } else {
+        numberOrUsername.setVisibility(View.GONE);
+      }
+    }
+  }
+
+  private static final class RecipientDiffCallback extends DiffUtil.ItemCallback<Recipient> {
+
+    @Override
+    public boolean areItemsTheSame(@NonNull Recipient oldItem, @NonNull Recipient newItem) {
+      return oldItem.equals(newItem);
+    }
+
+    @Override
+    public boolean areContentsTheSame(@NonNull Recipient oldItem, @NonNull Recipient newItem) {
+      return oldItem.equals(newItem);
+    }
+  }
+
+  interface RecipientClickedListener {
+    void onRecipientClicked(@NonNull Recipient recipient);
+  }
+}

app/src/main/java/org/thoughtcrime/securesms/blocked/BlockedUsersFragment.java

@@ -0,0 +1,100 @@
+package org.thoughtcrime.securesms.blocked;
+
+import android.app.AlertDialog;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.graphics.Color;
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+import androidx.lifecycle.ViewModelProviders;
+import androidx.recyclerview.widget.RecyclerView;
+
+import org.thoughtcrime.securesms.R;
+import org.thoughtcrime.securesms.recipients.Recipient;
+
+public class BlockedUsersFragment extends Fragment {
+
+  private BlockedUsersViewModel viewModel;
+  private Listener              listener;
+
+  @Override
+  public void onAttach(@NonNull Context context) {
+    super.onAttach(context);
+
+    if (context instanceof Listener) {
+      listener = (Listener) context;
+    } else {
+      throw new ClassCastException("Expected context to implement Listener");
+    }
+  }
+
+  @Override
+  public void onDetach() {
+    super.onDetach();
+
+    listener = null;
+  }
+
+  @Override
+  public @Nullable View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+    return inflater.inflate(R.layout.blocked_users_fragment, container, false);
+  }
+
+  @Override
+  public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
+    View                addUser  = view.findViewById(R.id.add_blocked_user_touch_target);
+    RecyclerView        recycler = view.findViewById(R.id.blocked_users_recycler);
+    View                empty    = view.findViewById(R.id.no_blocked_users);
+    BlockedUsersAdapter adapter  = new BlockedUsersAdapter(this::handleRecipientClicked);
+
+    recycler.setAdapter(adapter);
+
+    addUser.setOnClickListener(unused -> {
+      if (listener != null) {
+        listener.handleAddUserToBlockedList();
+      }
+    });
+
+    viewModel = ViewModelProviders.of(requireActivity()).get(BlockedUsersViewModel.class);
+    viewModel.getRecipients().observe(getViewLifecycleOwner(), list -> {
+      if (list.isEmpty()) {
+        empty.setVisibility(View.VISIBLE);
+      } else {
+        empty.setVisibility(View.GONE);
+      }
+
+      adapter.submitList(list);
+    });
+  }
+
+  private void handleRecipientClicked(@NonNull Recipient recipient) {
+    AlertDialog confirmationDialog = new AlertDialog.Builder(requireContext())
+                                                    .setTitle(R.string.BlockedUsersActivity__unblock_user)
+                                                    .setMessage(getString(R.string.BlockedUsersActivity__do_you_want_to_unblock_s, recipient.getDisplayName(requireContext())))
+                                                    .setPositiveButton(R.string.BlockedUsersActivity__unblock, (dialog, which) -> {
+                                                      viewModel.unblock(recipient.getId());
+                                                      dialog.dismiss();
+                                                    })
+                                                    .setNegativeButton(android.R.string.cancel, (dialog, which) -> {
+                                                      dialog.dismiss();
+                                                    })
+                                                    .setCancelable(true)
+                                                    .create();
+
+    confirmationDialog.setOnShowListener(dialog -> {
+      confirmationDialog.getButton(DialogInterface.BUTTON_POSITIVE).setTextColor(Color.RED);
+    });
+
+    confirmationDialog.show();
+  }
+
+  interface Listener {
+    void handleAddUserToBlockedList();
+  }
+}

app/src/main/java/org/thoughtcrime/securesms/blocked/BlockedUsersRepository.java

@@ -0,0 +1,76 @@
+package org.thoughtcrime.securesms.blocked;
+
+import android.content.Context;
+
+import androidx.annotation.NonNull;
+import androidx.core.util.Consumer;
+
+import org.thoughtcrime.securesms.database.DatabaseFactory;
+import org.thoughtcrime.securesms.database.RecipientDatabase;
+import org.thoughtcrime.securesms.groups.GroupChangeBusyException;
+import org.thoughtcrime.securesms.groups.GroupChangeFailedException;
+import org.thoughtcrime.securesms.logging.Log;
+import org.thoughtcrime.securesms.recipients.Recipient;
+import org.thoughtcrime.securesms.recipients.RecipientId;
+import org.thoughtcrime.securesms.recipients.RecipientUtil;
+import org.thoughtcrime.securesms.util.concurrent.SignalExecutors;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+class BlockedUsersRepository {
+
+  private static final String TAG = Log.tag(BlockedUsersRepository.class);
+
+  private final Context context;
+
+  BlockedUsersRepository(@NonNull Context context) {
+    this.context = context;
+  }
+
+  void getBlocked(@NonNull Consumer<List<Recipient>> blockedUsers) {
+    SignalExecutors.BOUNDED.execute(() -> {
+      RecipientDatabase db = DatabaseFactory.getRecipientDatabase(context);
+      try (RecipientDatabase.RecipientReader reader = db.readerForBlocked(db.getBlocked())) {
+        int count = reader.getCount();
+        if (count == 0) {
+          blockedUsers.accept(Collections.emptyList());
+        } else {
+          List<Recipient> recipients = new ArrayList<>();
+          while (reader.getNext() != null) {
+            recipients.add(reader.getCurrent());
+          }
+          blockedUsers.accept(recipients);
+        }
+      }
+    });
+  }
+
+  void block(@NonNull RecipientId recipientId, @NonNull Runnable success, @NonNull Runnable failure) {
+    SignalExecutors.BOUNDED.execute(() -> {
+      try {
+        RecipientUtil.block(context, Recipient.resolved(recipientId));
+        success.run();
+      } catch (IOException | GroupChangeFailedException | GroupChangeBusyException e) {
+        Log.w(TAG, "block: failed to block recipient: ", e);
+        failure.run();
+      }
+    });
+  }
+
+  void createAndBlock(@NonNull String number, @NonNull Runnable success) {
+    SignalExecutors.BOUNDED.execute(() -> {
+      RecipientUtil.blockNonGroup(context, Recipient.external(context, number));
+      success.run();
+    });
+  }
+
+  void unblock(@NonNull RecipientId recipientId, @NonNull Runnable success) {
+    SignalExecutors.BOUNDED.execute(() -> {
+      RecipientUtil.unblock(context, Recipient.resolved(recipientId));
+      success.run();
+    });
+  }
+}

app/src/main/java/org/thoughtcrime/securesms/blocked/BlockedUsersViewModel.java

@@ -0,0 +1,115 @@
+package org.thoughtcrime.securesms.blocked;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.lifecycle.LiveData;
+import androidx.lifecycle.MutableLiveData;
+import androidx.lifecycle.ViewModel;
+import androidx.lifecycle.ViewModelProvider;
+
+import org.thoughtcrime.securesms.recipients.Recipient;
+import org.thoughtcrime.securesms.recipients.RecipientId;
+import org.thoughtcrime.securesms.util.SingleLiveEvent;
+
+import java.util.List;
+import java.util.Objects;
+
+public class BlockedUsersViewModel extends ViewModel {
+
+  private final BlockedUsersRepository           repository;
+  private final MutableLiveData<List<Recipient>> recipients;
+  private final SingleLiveEvent<Event>           events = new SingleLiveEvent<>();
+
+  private BlockedUsersViewModel(@NonNull BlockedUsersRepository repository) {
+    this.repository  = repository;
+    this.recipients = new MutableLiveData<>();
+
+    loadRecipients();
+   }
+
+  public LiveData<List<Recipient>> getRecipients() {
+    return recipients;
+  }
+
+  public LiveData<Event> getEvents() {
+    return events;
+  }
+
+  void block(@NonNull RecipientId recipientId) {
+    repository.block(recipientId,
+                     () -> {
+                       loadRecipients();
+                       events.postValue(new Event(EventType.BLOCK_SUCCEEDED, Recipient.resolved(recipientId)));
+                     },
+                     () -> events.postValue(new Event(EventType.BLOCK_FAILED, Recipient.resolved(recipientId))));
+  }
+
+  void createAndBlock(@NonNull String number) {
+    repository.createAndBlock(number, () -> {
+      loadRecipients();
+      events.postValue(new Event(EventType.BLOCK_SUCCEEDED, number));
+    });
+  }
+
+  void unblock(@NonNull RecipientId recipientId) {
+    repository.unblock(recipientId, () -> {
+      loadRecipients();
+      events.postValue(new Event(EventType.UNBLOCK_SUCCEEDED, Recipient.resolved(recipientId)));
+    });
+  }
+
+  private void loadRecipients() {
+    repository.getBlocked(recipients::postValue);
+  }
+
+  enum EventType {
+    BLOCK_SUCCEEDED,
+    BLOCK_FAILED,
+    UNBLOCK_SUCCEEDED
+  }
+
+  public static final class Event {
+
+    private final EventType eventType;
+    private final Recipient recipient;
+    private final String    number;
+
+    private Event(@NonNull EventType eventType, @NonNull Recipient recipient) {
+      this.eventType = eventType;
+      this.recipient = recipient;
+      this.number    = null;
+    }
+
+    private Event(@NonNull EventType eventType, @NonNull String number) {
+      this.eventType = eventType;
+      this.recipient = null;
+      this.number    = number;
+    }
+
+    public @Nullable Recipient getRecipient() {
+      return recipient;
+    }
+
+    public @Nullable String getNumber() {
+      return number;
+    }
+
+    public @NonNull EventType getEventType() {
+      return eventType;
+    }
+  }
+
+  public static class Factory implements ViewModelProvider.Factory {
+
+    private final BlockedUsersRepository repository;
+
+    public Factory(@NonNull BlockedUsersRepository repository) {
+      this.repository = repository;
+    }
+
+    @Override
+    public @NonNull <T extends ViewModel> T create(@NonNull Class<T> modelClass) {
+      return Objects.requireNonNull(modelClass.cast(new BlockedUsersViewModel(repository)));
+    }
+  }
+}

app/src/main/java/org/thoughtcrime/securesms/components/AudioView.java

@@ -17,7 +17,6 @@ import android.widget.TextView;
 import androidx.annotation.ColorInt;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
-import androidx.core.util.Consumer;
 import androidx.lifecycle.Observer;
 
 import com.airbnb.lottie.LottieAnimationView;
@@ -61,6 +60,7 @@ public final class AudioView extends FrameLayout {
 
   @ColorInt private final int waveFormPlayedBarsColor;
   @ColorInt private final int waveFormUnplayedBarsColor;
+  @ColorInt private final int waveFormThumbTint;
 
   @Nullable private SlideClickListener downloadListener;
             private int                backwardsCounter;
@@ -107,6 +107,9 @@ public final class AudioView extends FrameLayout {
 
       this.waveFormPlayedBarsColor   = typedArray.getColor(R.styleable.AudioView_waveformPlayedBarsColor, Color.WHITE);
       this.waveFormUnplayedBarsColor = typedArray.getColor(R.styleable.AudioView_waveformUnplayedBarsColor, Color.WHITE);
+      this.waveFormThumbTint         = typedArray.getColor(R.styleable.AudioView_waveformThumbTint, Color.WHITE);
+
+      progressAndPlay.getBackground().setColorFilter(typedArray.getColor(R.styleable.AudioView_progressAndPlayTint, Color.BLACK), PorterDuff.Mode.SRC_IN);
     } finally {
       if (typedArray != null) {
         typedArray.recycle();
@@ -132,10 +135,15 @@ public final class AudioView extends FrameLayout {
 
   public void setAudio(final @NonNull AudioSlide audio,
                        final @Nullable Callbacks callbacks,
-                       final boolean showControls)
+                       final boolean showControls,
+                       final boolean forceHideDuration)
   {
     this.callbacks = callbacks;
 
+    if (duration != null) {
+      duration.setVisibility(View.VISIBLE);
+    }
+
     if (seekBar instanceof WaveFormSeekBarView) {
       if (audioSlide != null && !Objects.equals(audioSlide.getUri(), audio.getUri())) {
        WaveFormSeekBarView waveFormView = (WaveFormSeekBarView) seekBar;
@@ -150,9 +158,11 @@ public final class AudioView extends FrameLayout {
       seekBar.setEnabled(false);
       downloadButton.setOnClickListener(new DownloadClickedListener(audio));
       if (circleProgress.isSpinning()) circleProgress.stopSpinning();
+      circleProgress.setVisibility(View.GONE);
     } else if (showControls && audio.getTransferState() == AttachmentDatabase.TRANSFER_PROGRESS_STARTED) {
       controlToggle.displayQuick(progressAndPlay);
       seekBar.setEnabled(false);
+      circleProgress.setVisibility(View.VISIBLE);
       circleProgress.spin();
     } else {
       seekBar.setEnabled(true);
@@ -164,13 +174,13 @@ public final class AudioView extends FrameLayout {
 
     if (seekBar instanceof WaveFormSeekBarView) {
       WaveFormSeekBarView waveFormView = (WaveFormSeekBarView) seekBar;
-      waveFormView.setColors(waveFormPlayedBarsColor, waveFormUnplayedBarsColor);
+      waveFormView.setColors(waveFormPlayedBarsColor, waveFormUnplayedBarsColor, waveFormThumbTint);
       if (android.os.Build.VERSION.SDK_INT >= 23) {
         new AudioWaveForm(getContext(), audio).getWaveForm(
           data -> {
-            if (duration != null) {
-              durationMillis = data.getDuration(TimeUnit.MILLISECONDS);
-              updateProgress(0, 0);
+            durationMillis = data.getDuration(TimeUnit.MILLISECONDS);
+            updateProgress(0, 0);
+            if (!forceHideDuration && duration != null) {
               duration.setVisibility(VISIBLE);
             }
             waveFormView.setWaveData(data.getWaveForm());
@@ -183,22 +193,38 @@ public final class AudioView extends FrameLayout {
         }
       }
     }
+
+    if (forceHideDuration && duration != null) {
+      duration.setVisibility(View.GONE);
+    }
   }
 
   public void setDownloadClickListener(@Nullable SlideClickListener listener) {
     this.downloadListener = listener;
   }
 
+  public @Nullable Uri getAudioSlideUri() {
+    if (audioSlide != null) return audioSlide.getUri();
+    else                    return null;
+  }
+
   private void onPlaybackState(@NonNull VoiceNotePlaybackState voiceNotePlaybackState) {
+    onDuration(voiceNotePlaybackState.getUri(), voiceNotePlaybackState.getTrackDuration());
     onStart(voiceNotePlaybackState.getUri(), voiceNotePlaybackState.isAutoReset());
     onProgress(voiceNotePlaybackState.getUri(),
                (double) voiceNotePlaybackState.getPlayheadPositionMillis() / voiceNotePlaybackState.getTrackDuration(),
                voiceNotePlaybackState.getPlayheadPositionMillis());
   }
 
+  private void onDuration(@NonNull Uri uri, long durationMillis) {
+    if (isTarget(uri)) {
+      this.durationMillis = durationMillis;
+    }
+  }
+
   private void onStart(@NonNull Uri uri, boolean autoReset) {
-    if (!Objects.equals(uri, audioSlide.getUri())) {
-      if (audioSlide != null && audioSlide.getUri() != null) {
+    if (!isTarget(uri)) {
+      if (hasAudioUri()) {
         onStop(audioSlide.getUri(), autoReset);
       }
 
@@ -214,7 +240,7 @@ public final class AudioView extends FrameLayout {
   }
 
   private void onStop(@NonNull Uri uri, boolean autoReset) {
-    if (!Objects.equals(uri, audioSlide.getUri())) {
+    if (!isTarget(uri)) {
       return;
     }
 
@@ -231,6 +257,30 @@ public final class AudioView extends FrameLayout {
     }
   }
 
+  private void onProgress(@NonNull Uri uri, double progress, long millis) {
+    if (!isTarget(uri)) {
+      return;
+    }
+
+    int seekProgress = (int) Math.floor(progress * seekBar.getMax());
+
+    if (seekProgress > seekBar.getProgress() || backwardsCounter > 3) {
+      backwardsCounter = 0;
+      seekBar.setProgress(seekProgress);
+      updateProgress((float) progress, millis);
+    } else {
+      backwardsCounter++;
+    }
+  }
+
+  private boolean isTarget(@NonNull Uri uri) {
+    return hasAudioUri() && Objects.equals(uri, audioSlide.getUri());
+  }
+
+  private boolean hasAudioUri() {
+    return audioSlide != null && audioSlide.getUri() != null;
+  }
+
   @Override
   public void setFocusable(boolean focusable) {
     super.setFocusable(focusable);
@@ -257,23 +307,11 @@ public final class AudioView extends FrameLayout {
     this.downloadButton.setEnabled(enabled);
   }
 
-  private void onProgress(@NonNull Uri uri, double progress, long millis) {
-    if (audioSlide == null || !Objects.equals(uri, audioSlide.getUri())) {
-      return;
-    }
-
-    int seekProgress = (int) Math.floor(progress * seekBar.getMax());
-
-    if (seekProgress > seekBar.getProgress() || backwardsCounter > 3) {
-      backwardsCounter = 0;
-      seekBar.setProgress(seekProgress);
-      updateProgress((float) progress, millis);
-    } else {
-      backwardsCounter++;
-    }
-  }
-
   private void updateProgress(float progress, long millis) {
+    if (callbacks != null) {
+      callbacks.onProgressUpdated(durationMillis, millis);
+    }
+
     if (duration != null && durationMillis > 0) {
       long remainingSecs = TimeUnit.MILLISECONDS.toSeconds(durationMillis - millis);
       duration.setText(getResources().getString(R.string.AudioView_duration, remainingSecs / 60, remainingSecs % 60));
@@ -333,10 +371,11 @@ public final class AudioView extends FrameLayout {
   }
 
   private void showPlayButton() {
-    if (!smallView || seekBar.getProgress() == 0) {
+    if (!smallView) {
+      circleProgress.setVisibility(GONE);
+    } else if (seekBar.getProgress() == 0) {
       circleProgress.setInstantProgress(1);
     }
-    circleProgress.setVisibility(VISIBLE);
     playPauseButton.setVisibility(VISIBLE);
     controlToggle.displayQuick(progressAndPlay);
   }
@@ -362,7 +401,7 @@ public final class AudioView extends FrameLayout {
         } else {
           callbacks.onPause(audioSlide.getUri());
         }
-      };
+      }
     }
   }
 
@@ -435,5 +474,6 @@ public final class AudioView extends FrameLayout {
     void onPause(@NonNull Uri audioUri);
     void onSeekTo(@NonNull Uri audioUri, double progress);
     void onStopAndReset(@NonNull Uri audioUri);
+    void onProgressUpdated(long durationMillis, long playheadMillis);
   }
 }

app/src/main/java/org/thoughtcrime/securesms/components/AvatarImageView.java

@@ -117,7 +117,7 @@ public final class AvatarImageView extends AppCompatImageView {
    * Shows self as the actual profile picture.
    */
   public void setRecipient(@NonNull Recipient recipient) {
-    if (recipient.isLocalNumber()) {
+    if (recipient.isSelf()) {
       setAvatar(GlideApp.with(this), null, false);
       AvatarUtil.loadIconIntoImageView(recipient, this);
     } else {

app/src/main/java/org/thoughtcrime/securesms/components/ComposeText.java

@@ -21,6 +21,7 @@ import android.view.inputmethod.InputConnection;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.core.content.ContextCompat;
 import androidx.core.view.inputmethod.EditorInfoCompat;
 import androidx.core.view.inputmethod.InputConnectionCompat;
 import androidx.core.view.inputmethod.InputContentInfoCompat;
@@ -257,7 +258,7 @@ public class ComposeText extends EmojiEditText {
       setImeOptions(getImeOptions() | 16777216);
     }
 
-    mentionRendererDelegate = new MentionRendererDelegate(getContext(), ThemeUtil.getThemedColor(getContext(), R.attr.conversation_mention_background_color));
+    mentionRendererDelegate = new MentionRendererDelegate(getContext(), ContextCompat.getColor(getContext(), R.color.conversation_mention_background_color));
 
     addTextChangedListener(new MentionDeleter());
     mentionValidatorWatcher = new MentionValidatorWatcher();

app/src/main/java/org/thoughtcrime/securesms/components/ContactFilterToolbar.java

@@ -19,6 +19,7 @@ import androidx.core.widget.TextViewCompat;
 
 import org.thoughtcrime.securesms.R;
 import org.thoughtcrime.securesms.util.ServiceUtil;
+import org.thoughtcrime.securesms.util.ViewUtil;
 import org.thoughtcrime.securesms.util.views.DarkOverflowToolbar;
 
 public final class ContactFilterToolbar extends DarkOverflowToolbar {
@@ -125,6 +126,10 @@ public final class ContactFilterToolbar extends DarkOverflowToolbar {
     attributes.recycle();
   }
 
+  public void focusAndShowKeyboard() {
+    ViewUtil.focusAndShowKeyboard(searchText);
+  }
+
   public void clear() {
     searchText.setText("");
     notifyListener();

app/src/main/java/org/thoughtcrime/securesms/components/ConversationItemFooter.java

@@ -5,6 +5,7 @@ import android.annotation.SuppressLint;
 import android.content.Context;
 import android.content.res.TypedArray;
 import android.graphics.PorterDuff;
+import android.graphics.PorterDuffColorFilter;
 import android.os.AsyncTask;
 import android.util.AttributeSet;
 import android.view.View;
@@ -15,18 +16,26 @@ import android.widget.TextView;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 
+import com.airbnb.lottie.LottieAnimationView;
+import com.airbnb.lottie.LottieProperty;
+import com.airbnb.lottie.model.KeyPath;
+
 import org.thoughtcrime.securesms.ApplicationContext;
 import org.thoughtcrime.securesms.R;
 import org.thoughtcrime.securesms.database.DatabaseFactory;
 import org.thoughtcrime.securesms.database.model.MessageRecord;
+import org.thoughtcrime.securesms.database.model.MmsMessageRecord;
 import org.thoughtcrime.securesms.permissions.Permissions;
 import org.thoughtcrime.securesms.service.ExpiringMessageManager;
 import org.thoughtcrime.securesms.util.DateUtils;
+import org.thoughtcrime.securesms.util.FeatureFlags;
+import org.thoughtcrime.securesms.util.ViewUtil;
 import org.thoughtcrime.securesms.util.dualsim.SubscriptionInfoCompat;
 import org.thoughtcrime.securesms.util.dualsim.SubscriptionManagerCompat;
 import org.whispersystems.libsignal.util.guava.Optional;
 
 import java.util.Locale;
+import java.util.concurrent.TimeUnit;
 
 public class ConversationItemFooter extends LinearLayout {
 
@@ -36,6 +45,9 @@ public class ConversationItemFooter extends LinearLayout {
   private ImageView           insecureIndicatorView;
   private DeliveryStatusView  deliveryStatusView;
   private boolean             onlyShowSendingStatus;
+  private View                audioSpace;
+  private TextView            audioDuration;
+  private LottieAnimationView revealDot;
 
   public ConversationItemFooter(Context context) {
     super(context);
@@ -60,11 +72,15 @@ public class ConversationItemFooter extends LinearLayout {
     timerView             = findViewById(R.id.footer_expiration_timer);
     insecureIndicatorView = findViewById(R.id.footer_insecure_indicator);
     deliveryStatusView    = findViewById(R.id.footer_delivery_status);
+    audioDuration         = findViewById(R.id.footer_audio_duration);
+    audioSpace            = findViewById(R.id.footer_audio_duration_space);
+    revealDot             = findViewById(R.id.footer_revealed_dot);
 
     if (attrs != null) {
       TypedArray typedArray = getContext().getTheme().obtainStyledAttributes(attrs, R.styleable.ConversationItemFooter, 0, 0);
       setTextColor(typedArray.getInt(R.styleable.ConversationItemFooter_footer_text_color, getResources().getColor(R.color.core_white)));
       setIconColor(typedArray.getInt(R.styleable.ConversationItemFooter_footer_icon_color, getResources().getColor(R.color.core_white)));
+      setRevealDotColor(typedArray.getInt(R.styleable.ConversationItemFooter_footer_reveal_dot_color, getResources().getColor(R.color.core_white)));
       typedArray.recycle();
     }
   }
@@ -81,11 +97,18 @@ public class ConversationItemFooter extends LinearLayout {
     presentTimer(messageRecord);
     presentInsecureIndicator(messageRecord);
     presentDeliveryStatus(messageRecord);
+    hideAudioDurationViews();
+  }
+
+  public void setAudioDuration(long totalDurationMillis, long currentPostionMillis) {
+    long remainingSecs = TimeUnit.MILLISECONDS.toSeconds(totalDurationMillis - currentPostionMillis);
+    audioDuration.setText(getResources().getString(R.string.AudioView_duration, remainingSecs / 60, remainingSecs % 60));
   }
 
   public void setTextColor(int color) {
     dateView.setTextColor(color);
     simView.setTextColor(color);
+    audioDuration.setTextColor(color);
   }
 
   public void setIconColor(int color) {
@@ -94,6 +117,14 @@ public class ConversationItemFooter extends LinearLayout {
     deliveryStatusView.setTint(color);
   }
 
+  public void setRevealDotColor(int color) {
+    revealDot.addValueCallback(
+        new KeyPath("**"),
+        LottieProperty.COLOR_FILTER,
+        frameInfo -> new PorterDuffColorFilter(color, PorterDuff.Mode.SRC_ATOP)
+    );
+  }
+
   public void setOnlyShowSendingStatus(boolean onlyShowSending, MessageRecord messageRecord) {
     this.onlyShowSendingStatus = onlyShowSending;
     presentDeliveryStatus(messageRecord);
@@ -204,4 +235,64 @@ public class ConversationItemFooter extends LinearLayout {
       }
     }
   }
+
+  private void presentAudioDuration(@NonNull MessageRecord messageRecord) {
+    if (messageRecord.isMms()) {
+      MmsMessageRecord mmsMessageRecord = (MmsMessageRecord) messageRecord;
+
+      if (mmsMessageRecord.getSlideDeck().getAudioSlide() != null) {
+        if (messageRecord.isOutgoing()) {
+          moveAudioViewsForOutgoing();
+        } else {
+          moveAudioViewsForIncoming();
+        }
+        showAudioDurationViews();
+      } else {
+        hideAudioDurationViews();
+      }
+    } else {
+      hideAudioDurationViews();
+    }
+  }
+
+  private void moveAudioViewsForOutgoing() {
+    removeView(audioSpace);
+    removeView(audioDuration);
+    removeView(revealDot);
+    addView(audioSpace, 0);
+    addView(revealDot, 0);
+    addView(audioDuration, 0);
+
+    int padStart = ViewUtil.dpToPx(60);
+    int padLeft  = getLayoutDirection() == LAYOUT_DIRECTION_LTR ? padStart : 0;
+    int padRight = getLayoutDirection() == LAYOUT_DIRECTION_RTL ? padStart : 0;
+
+    audioDuration.setPadding(padLeft, 0, padRight, 0);
+  }
+
+  private void moveAudioViewsForIncoming() {
+    removeView(audioSpace);
+    removeView(audioDuration);
+    removeView(revealDot);
+    addView(audioSpace);
+    addView(revealDot);
+    addView(audioDuration);
+
+    audioDuration.setPadding(0, 0, 0, 0);
+  }
+
+  private void showAudioDurationViews() {
+    audioSpace.setVisibility(View.VISIBLE);
+    audioDuration.setVisibility(View.VISIBLE);
+
+    if (FeatureFlags.viewedReceipts()) {
+      revealDot.setVisibility(View.VISIBLE);
+    }
+  }
+
+  private void hideAudioDurationViews() {
+    audioSpace.setVisibility(View.GONE);
+    audioDuration.setVisibility(View.GONE);
+    revealDot.setVisibility(View.GONE);
+  }
 }

app/src/main/java/org/thoughtcrime/securesms/components/ConversationItemThumbnail.java

@@ -7,6 +7,8 @@ import androidx.annotation.ColorInt;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.annotation.UiThread;
+import androidx.core.content.ContextCompat;
+
 import android.util.AttributeSet;
 import android.widget.FrameLayout;
 import android.widget.ImageView;
@@ -57,7 +59,7 @@ public class ConversationItemThumbnail extends FrameLayout {
     this.cornerMask = new CornerMask(this);
     this.outliner   = new Outliner();
 
-    outliner.setColor(ThemeUtil.getThemedColor(getContext(), R.attr.conversation_item_image_outline_color));
+    outliner.setColor(ContextCompat.getColor(getContext(), R.color.signal_inverse_transparent_20));
 
     if (attrs != null) {
       TypedArray typedArray = getContext().getTheme().obtainStyledAttributes(attrs, R.styleable.ConversationItemThumbnail, 0, 0);

app/src/main/java/org/thoughtcrime/securesms/components/DarkSearchView.java

@@ -30,6 +30,6 @@ public class DarkSearchView extends androidx.appcompat.widget.SearchView {
     super(context, attrs, defStyleAttr);
 
     EditText searchText = findViewById(androidx.appcompat.R.id.search_src_text);
-    searchText.setTextColor(ThemeUtil.getThemedColor(context, R.attr.conversation_subtitle_color));
+    searchText.setTextColor(ContextCompat.getColor(context, R.color.signal_text_toolbar_subtitle));
   }
 }

app/src/main/java/org/thoughtcrime/securesms/components/FromTextView.java

@@ -4,22 +4,16 @@ import android.content.Context;
 import android.graphics.Typeface;
 
 import androidx.annotation.Nullable;
-import androidx.core.view.ViewCompat;
+
 import android.text.Spannable;
 import android.text.SpannableString;
 import android.text.SpannableStringBuilder;
-import android.text.Spanned;
-import android.text.style.ForegroundColorSpan;
 import android.text.style.StyleSpan;
-import android.text.style.TypefaceSpan;
 import android.util.AttributeSet;
 
 import org.thoughtcrime.securesms.R;
 import org.thoughtcrime.securesms.components.emoji.EmojiTextView;
 import org.thoughtcrime.securesms.recipients.Recipient;
-import org.thoughtcrime.securesms.util.FeatureFlags;
-import org.thoughtcrime.securesms.util.ResUtil;
-import org.thoughtcrime.securesms.util.spans.CenterAlignedRelativeSizeSpan;
 
 public class FromTextView extends EmojiTextView {
 
@@ -59,7 +53,7 @@ public class FromTextView extends EmojiTextView {
                      Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
 
 
-    if (recipient.isLocalNumber()) {
+    if (recipient.isSelf()) {
       builder.append(getContext().getString(R.string.note_to_self));
     } else {
       builder.append(fromSpan);

app/src/main/java/org/thoughtcrime/securesms/components/FullScreenDialogFragment.java

@@ -32,7 +32,7 @@ public abstract class FullScreenDialogFragment extends DialogFragment {
   }
 
   @Override
-  public @NonNull View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+  public final @NonNull View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
     View view = inflater.inflate(R.layout.full_screen_dialog_fragment, container, false);
     inflater.inflate(getDialogLayoutResource(), view.findViewById(R.id.full_screen_dialog_content), true);
     toolbar = view.findViewById(R.id.full_screen_dialog_toolbar);

app/src/main/java/org/thoughtcrime/securesms/components/ImageDivet.java

@@ -1,105 +0,0 @@
-package org.thoughtcrime.securesms.components;
-
-import android.content.Context;
-import android.content.res.TypedArray;
-import android.graphics.Canvas;
-import android.graphics.drawable.Drawable;
-import androidx.appcompat.widget.AppCompatImageView;
-import android.util.AttributeSet;
-
-import org.thoughtcrime.securesms.R;
-
-public class ImageDivet extends AppCompatImageView {
-  private static final float CORNER_OFFSET = 12F;
-  private static final String[] POSITIONS  = new String[] {"bottom_right"};
-
-  private Drawable drawable;
-
-  private int drawableIntrinsicWidth;
-  private int drawableIntrinsicHeight;
-  private int position;
-  private float density;
-
-  public ImageDivet(Context context, AttributeSet attrs, int defStyle) {
-    super(context, attrs, defStyle);
-    initialize(attrs);
-  }
-
-  public ImageDivet(Context context, AttributeSet attrs) {
-    super(context, attrs);
-    initialize(attrs);
-  }
-
-  public ImageDivet(Context context) {
-    super(context);
-    initialize(null);
-  }
-
-  private void initialize(AttributeSet attrs) {
-    if (attrs != null) {
-      position = attrs.getAttributeListValue(null, "position", POSITIONS, -1);
-    }
-
-    density = getContext().getResources().getDisplayMetrics().density;
-    setDrawable();
-  }
-
-  private void setDrawable() {
-    int attributes[]     = new int[] {R.attr.lower_right_divet};
-
-    TypedArray drawables = getContext().obtainStyledAttributes(attributes);
-
-    switch (position) {
-    case 0:
-      drawable = drawables.getDrawable(0);
-      break;
-    }
-
-    drawableIntrinsicWidth  = drawable.getIntrinsicWidth();
-    drawableIntrinsicHeight = drawable.getIntrinsicHeight();
-
-    drawables.recycle();
-  }
-
-  @Override
-  public void onDraw(Canvas c) {
-    super.onDraw(c);
-    c.save();
-    computeBounds(c);
-    drawable.draw(c);
-    c.restore();
-  }
-
-  public void setPosition(int position) {
-    this.position = position;
-    setDrawable();
-    invalidate();
-  }
-
-  public int getPosition() {
-    return position;
-  }
-
-  public float getCloseOffset() {
-    return CORNER_OFFSET * density;
-  }
-
-  public float getFarOffset() {
-    return getCloseOffset() + drawableIntrinsicHeight;
-  }
-
-  private void computeBounds(Canvas c) {
-    final int right = getWidth();
-    final int bottom = getHeight();
-
-    switch (position) {
-    case 0:
-     drawable.setBounds(
-         right - drawableIntrinsicWidth,
-         bottom - drawableIntrinsicHeight,
-         right,
-         bottom);
-     break;
-    }
-  }
-}

app/src/main/java/org/thoughtcrime/securesms/components/KeyboardAwareLinearLayout.java

@@ -23,6 +23,7 @@ import android.os.Build;
 import android.os.Build.VERSION_CODES;
 import android.preference.PreferenceManager;
 import androidx.appcompat.widget.LinearLayoutCompat;
+
 import android.util.AttributeSet;
 import org.thoughtcrime.securesms.logging.Log;
 import android.view.Surface;
@@ -31,6 +32,7 @@ import android.view.View;
 import org.thoughtcrime.securesms.R;
 import org.thoughtcrime.securesms.util.ServiceUtil;
 import org.thoughtcrime.securesms.util.Util;
+import org.thoughtcrime.securesms.util.ViewUtil;
 
 import java.lang.reflect.Field;
 import java.util.HashSet;
@@ -69,17 +71,17 @@ public class KeyboardAwareLinearLayout extends LinearLayoutCompat {
 
   public KeyboardAwareLinearLayout(Context context, AttributeSet attrs, int defStyle) {
     super(context, attrs, defStyle);
-    final int statusBarRes = getResources().getIdentifier("status_bar_height", "dimen", "android");
     minKeyboardSize                     = getResources().getDimensionPixelSize(R.dimen.min_keyboard_size);
     minCustomKeyboardSize               = getResources().getDimensionPixelSize(R.dimen.min_custom_keyboard_size);
     defaultCustomKeyboardSize           = getResources().getDimensionPixelSize(R.dimen.default_custom_keyboard_size);
     minCustomKeyboardTopMarginPortrait  = getResources().getDimensionPixelSize(R.dimen.min_custom_keyboard_top_margin_portrait);
     minCustomKeyboardTopMarginLandscape = getResources().getDimensionPixelSize(R.dimen.min_custom_keyboard_top_margin_portrait);
-    statusBarHeight                     = statusBarRes > 0 ? getResources().getDimensionPixelSize(statusBarRes) : 0;
+    statusBarHeight                     = ViewUtil.getStatusBarHeight(this);
     viewInset                           = getViewInset();
   }
 
-  @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+  @Override
+  protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
     updateRotation();
     updateKeyboardState();
     super.onMeasure(widthMeasureSpec, heightMeasureSpec);
@@ -100,7 +102,7 @@ public class KeyboardAwareLinearLayout extends LinearLayoutCompat {
     getWindowVisibleDisplayFrame(rect);
 
     final int availableHeight = getAvailableHeight();
-    final int keyboardHeight  = availableHeight - (rect.bottom - rect.top);
+    final int keyboardHeight  = availableHeight - rect.bottom;
 
     if (keyboardHeight > minKeyboardSize) {
       if (getKeyboardHeight() != keyboardHeight) {
@@ -128,19 +130,19 @@ public class KeyboardAwareLinearLayout extends LinearLayoutCompat {
         Field stableInsetsField = attachInfo.getClass().getDeclaredField("mStableInsets");
         stableInsetsField.setAccessible(true);
         Rect insets = (Rect)stableInsetsField.get(attachInfo);
-        return insets.bottom;
+        if (insets != null) {
+          return insets.bottom;
+        }
       }
-    } catch (NoSuchFieldException nsfe) {
-      Log.w(TAG, "field reflection error when measuring view inset", nsfe);
-    } catch (IllegalAccessException iae) {
-      Log.w(TAG, "access reflection error when measuring view inset", iae);
+    } catch (NoSuchFieldException | IllegalAccessException e) {
+      // Do nothing
     }
-    return 0;
+    return statusBarHeight;
   }
 
   private int getAvailableHeight() {
-    final int availableHeight = this.getRootView().getHeight() - viewInset - (!isFullscreen ? statusBarHeight : 0);
-    final int availableWidth  = this.getRootView().getWidth() - (!isFullscreen ? statusBarHeight : 0);
+    final int availableHeight = this.getRootView().getHeight() - viewInset;
+    final int availableWidth  = this.getRootView().getWidth();
 
     if (isLandscape() && availableHeight > availableWidth) {
       //noinspection SuspiciousNameCombination

app/src/main/java/org/thoughtcrime/securesms/components/LinkPreviewView.java

@@ -13,6 +13,7 @@ import android.widget.TextView;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.annotation.StringRes;
+import androidx.core.content.ContextCompat;
 
 import org.thoughtcrime.securesms.R;
 import org.thoughtcrime.securesms.linkpreview.LinkPreview;
@@ -79,7 +80,7 @@ public class LinkPreviewView extends FrameLayout {
     cornerMask    = new CornerMask(this);
     outliner      = new Outliner();
 
-    outliner.setColor(ThemeUtil.getThemedColor(getContext(), R.attr.conversation_item_image_outline_color));
+    outliner.setColor(ContextCompat.getColor(getContext(), R.color.signal_inverse_transparent_20));
 
     if (attrs != null) {
       TypedArray typedArray   = getContext().getTheme().obtainStyledAttributes(attrs, R.styleable.LinkPreviewView, 0, 0);

app/src/main/java/org/thoughtcrime/securesms/components/OutlinedThumbnailView.java

@@ -7,6 +7,7 @@ import android.graphics.Canvas;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.annotation.UiThread;
+import androidx.core.content.ContextCompat;
 
 import android.graphics.Color;
 import android.util.AttributeSet;
@@ -37,7 +38,7 @@ public class OutlinedThumbnailView extends ThumbnailView {
     cornerMask = new CornerMask(this);
     outliner   = new Outliner();
 
-    outliner.setColor(ThemeUtil.getThemedColor(getContext(), R.attr.conversation_item_image_outline_color));
+    outliner.setColor(ContextCompat.getColor(getContext(), R.color.signal_inverse_transparent_20));
 
     int radius = 0;
 

app/src/main/java/org/thoughtcrime/securesms/components/QuoteView.java

@@ -190,8 +190,8 @@ public class QuoteView extends FrameLayout implements RecipientForeverObserver {
   private void setQuoteAuthor(@NonNull Recipient author) {
     boolean outgoing = messageType != MESSAGE_TYPE_INCOMING;
 
-    authorView.setText(author.isLocalNumber() ? getContext().getString(R.string.QuoteView_you)
-                                              : author.getDisplayName(getContext()));
+    authorView.setText(author.isSelf() ? getContext().getString(R.string.QuoteView_you)
+                                       : author.getDisplayName(getContext()));
 
     // We use the raw color resource because Android 4.x was struggling with tints here
     quoteBarView.setImageResource(author.getColor().toQuoteBarColorResource(getContext(), outgoing));

app/src/main/java/org/thoughtcrime/securesms/components/TooltipPopup.java

@@ -7,6 +7,8 @@ import androidx.annotation.ColorInt;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.annotation.StringRes;
+import androidx.core.content.ContextCompat;
+
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -76,8 +78,8 @@ public class TooltipPopup extends PopupWindow {
     View bubble = getContentView().findViewById(R.id.tooltip_bubble);
 
     if (backgroundTint == 0) {
-      bubble.getBackground().setColorFilter(ThemeUtil.getThemedColor(anchor.getContext(), R.attr.tooltip_default_color), PorterDuff.Mode.MULTIPLY);
-      arrow.setColorFilter(ThemeUtil.getThemedColor(anchor.getContext(), R.attr.tooltip_default_color), PorterDuff.Mode.MULTIPLY);
+      bubble.getBackground().setColorFilter(ContextCompat.getColor(anchor.getContext(), R.color.tooltip_default_color), PorterDuff.Mode.MULTIPLY);
+      arrow.setColorFilter(ContextCompat.getColor(anchor.getContext(), R.color.tooltip_default_color), PorterDuff.Mode.MULTIPLY);
     } else {
       bubble.getBackground().setColorFilter(backgroundTint, PorterDuff.Mode.MULTIPLY);
       arrow.setColorFilter(backgroundTint, PorterDuff.Mode.MULTIPLY);

app/src/main/java/org/thoughtcrime/securesms/components/TypingStatusRepository.java

@@ -42,7 +42,7 @@ public class TypingStatusRepository {
   }
 
   public synchronized void onTypingStarted(@NonNull Context context, long threadId, @NonNull Recipient author, int device) {
-    if (author.isLocalNumber()) {
+    if (author.isSelf()) {
       return;
     }
 
@@ -66,7 +66,7 @@ public class TypingStatusRepository {
   }
 
   public synchronized void onTypingStopped(@NonNull Context context, long threadId, @NonNull Recipient author, int device, boolean isReplacedByIncomingMessage) {
-    if (author.isLocalNumber()) {
+    if (author.isSelf()) {
       return;
     }
 

app/src/main/java/org/thoughtcrime/securesms/components/TypingStatusSender.java

@@ -2,9 +2,9 @@ package org.thoughtcrime.securesms.components;
 
 import android.annotation.SuppressLint;
 import android.content.Context;
+
 import androidx.annotation.NonNull;
 
-import org.thoughtcrime.securesms.ApplicationContext;
 import org.thoughtcrime.securesms.dependencies.ApplicationDependencies;
 import org.thoughtcrime.securesms.jobs.TypingSendJob;
 import org.thoughtcrime.securesms.util.Util;
@@ -54,6 +54,10 @@ public class TypingStatusSender {
     onTypingStopped(threadId, false);
   }
 
+  public synchronized void onTypingStoppedWithNotify(long threadId) {
+    onTypingStopped(threadId, true);
+  }
+
   private synchronized void onTypingStopped(long threadId, boolean notify) {
     TimerPair pair = Util.getOrDefault(selfTypingTimers, threadId, new TimerPair());
     selfTypingTimers.put(threadId, pair);

app/src/main/java/org/thoughtcrime/securesms/components/WaveFormSeekBarView.java

@@ -3,6 +3,7 @@ package org.thoughtcrime.securesms.components;
 import android.content.Context;
 import android.graphics.Canvas;
 import android.graphics.Paint;
+import android.graphics.PorterDuff;
 import android.graphics.drawable.Drawable;
 import android.util.AttributeSet;
 import android.view.animation.Interpolator;
@@ -13,6 +14,7 @@ import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.annotation.Px;
 import androidx.appcompat.widget.AppCompatSeekBar;
+import androidx.core.content.ContextCompat;
 
 import org.thoughtcrime.securesms.R;
 
@@ -65,9 +67,12 @@ public final class WaveFormSeekBarView extends AppCompatSeekBar {
     barWidth = getResources().getDimensionPixelSize(R.dimen.wave_form_bar_width);
   }
 
-  public void setColors(@ColorInt int playedBarColor, @ColorInt int unplayedBarColor) {
+  public void setColors(@ColorInt int playedBarColor, @ColorInt int unplayedBarColor, @ColorInt int thumbTint) {
     this.playedBarColor   = playedBarColor;
     this.unplayedBarColor = unplayedBarColor;
+
+    getThumb().setColorFilter(thumbTint, PorterDuff.Mode.SRC_IN);
+
     invalidate();
   }
 

app/src/main/java/org/thoughtcrime/securesms/components/emoji/AsciiEmojiView.java

@@ -4,6 +4,8 @@ import android.content.Context;
 import android.graphics.Canvas;
 import android.graphics.Paint;
 import androidx.annotation.Nullable;
+import androidx.core.content.ContextCompat;
+
 import android.text.TextUtils;
 import android.util.AttributeSet;
 import android.view.View;
@@ -38,7 +40,7 @@ public class AsciiEmojiView extends View {
     float targetFontSize = 0.75f * getHeight() - getPaddingTop() - getPaddingBottom();
 
     paint.setTextSize(targetFontSize);
-    paint.setColor(ResUtil.getColor(getContext(), R.attr.emoji_text_color));
+    paint.setColor(ContextCompat.getColor(getContext(), R.color.signal_inverse_primary));
     paint.setTextAlign(Paint.Align.CENTER);
 
     int xPos = (getWidth() / 2);

app/src/main/java/org/thoughtcrime/securesms/components/emoji/EmojiKeyboardProvider.java

@@ -81,9 +81,9 @@ public class EmojiKeyboardProvider implements MediaKeyboardProvider,
   @Override
   public int getProviderIconView(boolean selected) {
     if (selected) {
-      return ThemeUtil.isDarkTheme(context) ? R.layout.emoji_keyboard_icon_dark_selected : R.layout.emoji_keyboard_icon_light_selected;
+      return R.layout.emoji_keyboard_icon_selected;
     } else {
-      return ThemeUtil.isDarkTheme(context) ? R.layout.emoji_keyboard_icon_dark : R.layout.emoji_keyboard_icon_light;
+      return R.layout.emoji_keyboard_icon;
     }
   }
 

app/src/main/java/org/thoughtcrime/securesms/components/emoji/EmojiToggle.java

@@ -4,6 +4,8 @@ import android.content.Context;
 import android.graphics.drawable.Drawable;
 import androidx.annotation.NonNull;
 import androidx.appcompat.widget.AppCompatImageButton;
+import androidx.core.content.ContextCompat;
+
 import android.util.AttributeSet;
 
 import org.thoughtcrime.securesms.R;
@@ -44,9 +46,9 @@ public class EmojiToggle extends AppCompatImageButton implements MediaKeyboard.M
   }
 
   private void initialize() {
-    this.emojiToggle   = ResUtil.getDrawable(getContext(), R.attr.conversation_emoji_toggle);
-    this.stickerToggle = ResUtil.getDrawable(getContext(), R.attr.conversation_sticker_toggle);
-    this.imeToggle     = ResUtil.getDrawable(getContext(), R.attr.conversation_keyboard_toggle);
+    this.emojiToggle   = ContextCompat.getDrawable(getContext(), R.drawable.ic_emoji_smiley_24);
+    this.stickerToggle = ContextCompat.getDrawable(getContext(), R.drawable.ic_sticker_24);
+    this.imeToggle     = ContextCompat.getDrawable(getContext(), R.drawable.ic_keyboard_24);
     this.mediaToggle   = emojiToggle;
 
     setToMedia();

app/src/main/java/org/thoughtcrime/securesms/components/emoji/EmojiVariationSelectorPopup.java

@@ -3,6 +3,8 @@ package org.thoughtcrime.securesms.components.emoji;
 import android.content.Context;
 import android.os.Build;
 import androidx.annotation.NonNull;
+import androidx.core.content.ContextCompat;
+
 import android.view.LayoutInflater;
 import android.view.ViewGroup;
 import android.widget.ImageView;
@@ -28,7 +30,7 @@ public class EmojiVariationSelectorPopup extends PopupWindow {
     this.listener = listener;
     this.list     = (ViewGroup) getContentView().findViewById(R.id.emoji_variation_container);
 
-    setBackgroundDrawable(ThemeUtil.getThemedDrawable(context, R.attr.emoji_variation_selector_background));
+    setBackgroundDrawable(ContextCompat.getDrawable(context, R.drawable.emoji_variation_selector_background));
     setOutsideTouchable(true);
 
     if (Build.VERSION.SDK_INT >= 21) {

app/src/main/java/org/thoughtcrime/securesms/components/emoji/WarningTextView.java

@@ -0,0 +1,49 @@
+package org.thoughtcrime.securesms.components.emoji;
+
+import android.content.Context;
+import android.content.res.TypedArray;
+import android.util.AttributeSet;
+
+import androidx.annotation.ColorInt;
+import androidx.appcompat.widget.AppCompatTextView;
+
+import org.thoughtcrime.securesms.R;
+
+public final class WarningTextView extends AppCompatTextView {
+
+  @ColorInt private final int originalTextColor;
+  @ColorInt private final int warningTextColor;
+
+  private boolean warning;
+
+  public WarningTextView(Context context) {
+    this(context, null);
+  }
+
+  public WarningTextView(Context context, AttributeSet attrs) {
+    this(context, attrs, 0);
+  }
+
+  public WarningTextView(Context context, AttributeSet attrs, int defStyleAttr) {
+    super(context, attrs, defStyleAttr);
+
+    TypedArray styledAttributes = context.obtainStyledAttributes(attrs, R.styleable.WarningTextView, 0, 0);
+    warningTextColor = styledAttributes.getColor(R.styleable.WarningTextView_warning_text_color, 0);
+
+    styledAttributes.recycle();
+
+    styledAttributes = context.obtainStyledAttributes(attrs, new int[]{ android.R.attr.textColor });
+
+    originalTextColor = styledAttributes.getColor(0, 0);
+
+    styledAttributes.recycle();
+  }
+
+  public void setWarning(boolean warning) {
+    if (this.warning != warning) {
+      this.warning = warning;
+      setTextColor(warning ? warningTextColor : originalTextColor);
+      invalidate();
+    }
+  }
+}

app/src/main/java/org/thoughtcrime/securesms/components/identity/UntrustedSendDialog.java

@@ -31,7 +31,7 @@ public class UntrustedSendDialog extends AlertDialog.Builder implements DialogIn
     this.resendListener   = resendListener;
 
     setTitle(R.string.UntrustedSendDialog_send_message);
-    setIconAttribute(R.attr.dialog_alert_icon);
+    setIcon(R.drawable.ic_warning);
     setMessage(message);
     setPositiveButton(R.string.UntrustedSendDialog_send, this);
     setNegativeButton(android.R.string.cancel, null);

app/src/main/java/org/thoughtcrime/securesms/components/identity/UnverifiedSendDialog.java

@@ -30,7 +30,7 @@ public class UnverifiedSendDialog extends AlertDialog.Builder implements DialogI
     this.resendListener   = resendListener;
 
     setTitle(R.string.UnverifiedSendDialog_send_message);
-    setIconAttribute(R.attr.dialog_alert_icon);
+    setIcon(R.drawable.ic_warning);
     setMessage(message);
     setPositiveButton(R.string.UnverifiedSendDialog_send, this);
     setNegativeButton(android.R.string.cancel, null);

app/src/main/java/org/thoughtcrime/securesms/components/reminder/DefaultSmsReminder.java

@@ -1,37 +1,34 @@
 package org.thoughtcrime.securesms.components.reminder;
 
-import android.annotation.TargetApi;
 import android.content.Context;
-import android.content.Intent;
-import android.os.Build.VERSION_CODES;
-import android.provider.Telephony;
 import android.view.View;
 import android.view.View.OnClickListener;
 
+import androidx.annotation.NonNull;
+import androidx.fragment.app.Fragment;
+
 import org.thoughtcrime.securesms.R;
+import org.thoughtcrime.securesms.util.SmsUtil;
 import org.thoughtcrime.securesms.util.TextSecurePreferences;
 import org.thoughtcrime.securesms.util.Util;
 
 public class DefaultSmsReminder extends Reminder {
 
-  @TargetApi(VERSION_CODES.KITKAT)
-  public DefaultSmsReminder(final Context context) {
-    super(context.getString(R.string.reminder_header_sms_default_title),
-          context.getString(R.string.reminder_header_sms_default_text));
+  public DefaultSmsReminder(@NonNull Fragment fragment, short requestCode) {
+    super(fragment.getString(R.string.reminder_header_sms_default_title),
+          fragment.getString(R.string.reminder_header_sms_default_text));
 
     final OnClickListener okListener = new OnClickListener() {
       @Override
       public void onClick(View v) {
-        TextSecurePreferences.setPromptedDefaultSmsProvider(context, true);
-        Intent intent = new Intent(Telephony.Sms.Intents.ACTION_CHANGE_DEFAULT);
-        intent.putExtra(Telephony.Sms.Intents.EXTRA_PACKAGE_NAME, context.getPackageName());
-        context.startActivity(intent);
+        TextSecurePreferences.setPromptedDefaultSmsProvider(fragment.requireContext(), true);
+        fragment.startActivityForResult(SmsUtil.getSmsRoleIntent(fragment.requireContext()), requestCode);
       }
     };
     final OnClickListener dismissListener = new OnClickListener() {
       @Override
       public void onClick(View v) {
-        TextSecurePreferences.setPromptedDefaultSmsProvider(context, true);
+        TextSecurePreferences.setPromptedDefaultSmsProvider(fragment.requireContext(), true);
       }
     };
     setOkListener(okListener);

app/src/main/java/org/thoughtcrime/securesms/components/reminder/GroupsV1MigrationInitiationReminder.java

@@ -0,0 +1,27 @@
+package org.thoughtcrime.securesms.components.reminder;
+
+import android.content.Context;
+
+import androidx.annotation.NonNull;
+
+import org.thoughtcrime.securesms.R;
+import org.thoughtcrime.securesms.recipients.RecipientId;
+
+import java.util.List;
+
+/**
+ * Shows a reminder to upgrade a group to GV2.
+ */
+public class GroupsV1MigrationInitiationReminder extends Reminder {
+
+  public GroupsV1MigrationInitiationReminder(@NonNull Context context) {
+    super(null, context.getString(R.string.GroupsV1MigrationInitiationReminder_to_access_new_features_like_mentions));
+    addAction(new Action(context.getString(R.string.GroupsV1MigrationInitiationReminder_update_group), R.id.reminder_action_gv1_initiation_update_group));
+    addAction(new Action(context.getResources().getString(R.string.GroupsV1MigrationInitiationReminder_not_now), R.id.reminder_action_gv1_initiation_not_now));
+  }
+
+  @Override
+  public boolean isDismissable() {
+    return false;
+  }
+}

app/src/main/java/org/thoughtcrime/securesms/components/reminder/GroupsV1MigrationSuggestionsReminder.java

@@ -0,0 +1,26 @@
+package org.thoughtcrime.securesms.components.reminder;
+
+import android.content.Context;
+
+import androidx.annotation.NonNull;
+
+import org.thoughtcrime.securesms.R;
+import org.thoughtcrime.securesms.recipients.RecipientId;
+
+import java.util.List;
+
+/**
+ * Shows a reminder to add anyone that might have been missed in GV1->GV2 migration.
+ */
+public class GroupsV1MigrationSuggestionsReminder extends Reminder {
+  public GroupsV1MigrationSuggestionsReminder(@NonNull Context context, @NonNull List<RecipientId> suggestions) {
+    super(null, context.getResources().getQuantityString(R.plurals.GroupsV1MigrationSuggestionsReminder_members_couldnt_be_added_to_the_new_group, suggestions.size(), suggestions.size()));
+    addAction(new Action(context.getResources().getQuantityString(R.plurals.GroupsV1MigrationSuggestionsReminder_add_members, suggestions.size()), R.id.reminder_action_gv1_suggestion_add_members));
+    addAction(new Action(context.getResources().getString(R.string.GroupsV1MigrationSuggestionsReminder_not_now), R.id.reminder_action_gv1_suggestion_not_now));
+  }
+
+  @Override
+  public boolean isDismissable() {
+    return false;
+  }
+}

app/src/main/java/org/thoughtcrime/securesms/components/voice/VoiceNoteMediaController.java

@@ -225,13 +225,25 @@ public class VoiceNoteMediaController implements DefaultLifecycleObserver {
           mediaMetadataCompat.getDescription() != null)
       {
 
-        Uri     mediaUri  = Objects.requireNonNull(mediaMetadataCompat.getDescription().getMediaUri());
-        boolean autoReset = Objects.equals(mediaUri, VoiceNotePlaybackPreparer.NEXT_URI) || Objects.equals(mediaUri, VoiceNotePlaybackPreparer.END_URI);
+        Uri                    mediaUri      = Objects.requireNonNull(mediaMetadataCompat.getDescription().getMediaUri());
+        boolean                autoReset     = Objects.equals(mediaUri, VoiceNotePlaybackPreparer.NEXT_URI) || Objects.equals(mediaUri, VoiceNotePlaybackPreparer.END_URI);
+        VoiceNotePlaybackState previousState = voiceNotePlaybackState.getValue();
+        long                   position      = mediaController.getPlaybackState().getPosition();
+        long                   duration      = mediaMetadataCompat.getLong(MediaMetadataCompat.METADATA_KEY_DURATION);
 
-        voiceNotePlaybackState.postValue(new VoiceNotePlaybackState(mediaUri,
-                                                                    mediaController.getPlaybackState().getPosition(),
-                                                                    mediaMetadataCompat.getLong(MediaMetadataCompat.METADATA_KEY_DURATION),
-                                                                    autoReset));
+        if (previousState != null && Objects.equals(mediaUri, previousState.getUri())) {
+          if (position < 0 && previousState.getPlayheadPositionMillis() >= 0) {
+            position = previousState.getPlayheadPositionMillis();
+          }
+
+          if (duration <= 0 && previousState.getTrackDuration() > 0) {
+            duration = previousState.getTrackDuration();
+          }
+        }
+
+        if (duration > 0 && position >= 0 && position <= duration) {
+          voiceNotePlaybackState.postValue(new VoiceNotePlaybackState(mediaUri, position, duration, autoReset));
+        }
 
         sendEmptyMessageDelayed(0, 50);
       } else {

app/src/main/java/org/thoughtcrime/securesms/components/voice/VoiceNotePlaybackPreparer.java

@@ -88,6 +88,8 @@ final class VoiceNotePlaybackPreparer implements MediaSessionConnector.PlaybackP
 
   @Override
   public void onPrepareFromUri(final Uri uri, Bundle extras) {
+    Log.d(TAG, "onPrepareFromUri: " + uri);
+
     long    messageId      = extras.getLong(VoiceNoteMediaController.EXTRA_MESSAGE_ID);
     double  progress       = extras.getDouble(VoiceNoteMediaController.EXTRA_PROGRESS, 0);
     boolean singlePlayback = extras.getBoolean(VoiceNoteMediaController.EXTRA_PLAY_SINGLE, false);
@@ -138,47 +140,59 @@ final class VoiceNotePlaybackPreparer implements MediaSessionConnector.PlaybackP
   }
 
   private void applyDescriptionsToQueue(@NonNull List<MediaDescriptionCompat> descriptions) {
-    for (MediaDescriptionCompat description : descriptions) {
-      int                    holderIndex  = queueDataAdapter.indexOf(description.getMediaUri());
-      MediaDescriptionCompat next         = createNextClone(description);
-      int                    currentIndex = player.getCurrentWindowIndex();
+    synchronized (queueDataAdapter) {
+      for (MediaDescriptionCompat description : descriptions) {
+        int                    holderIndex  = queueDataAdapter.indexOf(description.getMediaUri());
+        MediaDescriptionCompat next         = createNextClone(description);
+        int                    currentIndex = player.getCurrentWindowIndex();
 
-      if (holderIndex != -1) {
-        queueDataAdapter.remove(holderIndex);
-        queueDataAdapter.remove(holderIndex);
-        queueDataAdapter.add(holderIndex, createNextClone(description));
-        queueDataAdapter.add(holderIndex, description);
+        if (holderIndex != -1) {
+          queueDataAdapter.remove(holderIndex);
 
-        if (currentIndex != holderIndex) {
-          dataSource.removeMediaSource(holderIndex);
-          dataSource.addMediaSource(holderIndex, mediaSourceFactory.createMediaSource(description));
+          if (!queueDataAdapter.isEmpty()) {
+            queueDataAdapter.remove(holderIndex);
+          }
+
+          queueDataAdapter.add(holderIndex, createNextClone(description));
+          queueDataAdapter.add(holderIndex, description);
+
+          if (currentIndex != holderIndex) {
+            dataSource.removeMediaSource(holderIndex);
+            dataSource.addMediaSource(holderIndex, mediaSourceFactory.createMediaSource(description));
+          }
+
+          if (currentIndex != holderIndex + 1) {
+            if (dataSource.getSize() > 1) {
+              dataSource.removeMediaSource(holderIndex + 1);
+            }
+
+            dataSource.addMediaSource(holderIndex + 1, mediaSourceFactory.createMediaSource(next));
+          }
+        } else {
+          int insertLocation = queueDataAdapter.indexAfter(description);
+
+          queueDataAdapter.add(insertLocation, next);
+          queueDataAdapter.add(insertLocation, description);
+
+          dataSource.addMediaSource(insertLocation, mediaSourceFactory.createMediaSource(next));
+          dataSource.addMediaSource(insertLocation, mediaSourceFactory.createMediaSource(description));
         }
-
-        if (currentIndex != holderIndex + 1) {
-          dataSource.removeMediaSource(holderIndex + 1);
-          dataSource.addMediaSource(holderIndex + 1, mediaSourceFactory.createMediaSource(next));
-        }
-      } else {
-        int insertLocation = queueDataAdapter.indexAfter(description);
-
-        queueDataAdapter.add(insertLocation, next);
-        queueDataAdapter.add(insertLocation, description);
-
-        dataSource.addMediaSource(insertLocation, mediaSourceFactory.createMediaSource(next));
-        dataSource.addMediaSource(insertLocation, mediaSourceFactory.createMediaSource(description));
       }
-    }
 
-    int                    lastIndex = queueDataAdapter.size() - 1;
-    MediaDescriptionCompat last      = queueDataAdapter.getMediaDescription(lastIndex);
+      int                    lastIndex = queueDataAdapter.size() - 1;
+      MediaDescriptionCompat last      = queueDataAdapter.getMediaDescription(lastIndex);
 
-    if (Objects.equals(last.getMediaUri(), NEXT_URI)) {
-      MediaDescriptionCompat end = createEndClone(last);
+      if (Objects.equals(last.getMediaUri(), NEXT_URI)) {
+        queueDataAdapter.remove(lastIndex);
+        dataSource.removeMediaSource(lastIndex);
 
-      queueDataAdapter.remove(lastIndex);
-      queueDataAdapter.add(lastIndex, end);
-      dataSource.removeMediaSource(lastIndex);
-      dataSource.addMediaSource(lastIndex, mediaSourceFactory.createMediaSource(end));
+        if (queueDataAdapter.size() > 1) {
+          MediaDescriptionCompat end = createEndClone(last);
+
+          queueDataAdapter.add(lastIndex, end);
+          dataSource.addMediaSource(lastIndex, mediaSourceFactory.createMediaSource(end));
+        }
+      }
     }
   }
 
@@ -237,10 +251,9 @@ final class VoiceNotePlaybackPreparer implements MediaSessionConnector.PlaybackP
   @WorkerThread
   private @NonNull List<MediaDescriptionCompat> loadMediaDescriptionsForConsecutivePlayback(long messageId) {
     try {
-      List<MessageRecord> recordsBefore = DatabaseFactory.getMmsSmsDatabase(context).getMessagesBeforeVoiceNoteExclusive(messageId, LIMIT);
       List<MessageRecord> recordsAfter  = DatabaseFactory.getMmsSmsDatabase(context).getMessagesAfterVoiceNoteInclusive(messageId, LIMIT);
 
-      return Stream.of(buildFilteredMessageRecordList(recordsBefore, recordsAfter))
+      return Stream.of(buildFilteredMessageRecordList(recordsAfter))
                    .map(record -> VoiceNoteMediaDescriptionCompatFactory.buildMediaDescription(context, record))
                    .toList();
     } catch (NoSuchMessageException e) {
@@ -249,20 +262,9 @@ final class VoiceNotePlaybackPreparer implements MediaSessionConnector.PlaybackP
     }
   }
 
-  @VisibleForTesting
-  static @NonNull List<MessageRecord> buildFilteredMessageRecordList(@NonNull List<MessageRecord> recordsBefore, @NonNull List<MessageRecord> recordsAfter) {
-    Collections.reverse(recordsBefore);
-    List<MessageRecord> filteredBefore = Stream.of(recordsBefore)
-                                               .takeWhile(MessageRecordUtil::hasAudio)
-                                               .toList();
-    Collections.reverse(filteredBefore);
-
-    List<MessageRecord> filteredAfter = Stream.of(recordsAfter)
-                                              .takeWhile(MessageRecordUtil::hasAudio)
-                                              .toList();
-
-    filteredBefore.addAll(filteredAfter);
-
-    return filteredBefore;
+  private static @NonNull List<MessageRecord> buildFilteredMessageRecordList(@NonNull List<MessageRecord> recordsAfter) {
+    return Stream.of(recordsAfter)
+                 .takeWhile(MessageRecordUtil::hasAudio)
+                 .toList();
   }
 }

app/src/main/java/org/thoughtcrime/securesms/components/voice/VoiceNotePlaybackService.java

@@ -10,6 +10,7 @@ import android.os.Bundle;
 import android.os.Process;
 import android.os.RemoteException;
 import android.support.v4.media.MediaBrowserCompat;
+import android.support.v4.media.MediaDescriptionCompat;
 import android.support.v4.media.session.MediaControllerCompat;
 import android.support.v4.media.session.MediaSessionCompat;
 import android.support.v4.media.session.PlaybackStateCompat;
@@ -89,7 +90,7 @@ public class VoiceNotePlaybackService extends MediaBrowserServiceCompat {
     VoiceNoteMediaSourceFactory mediaSourceFactory = new VoiceNoteMediaSourceFactory(this);
 
     voiceNotePlaybackPreparer = new VoiceNotePlaybackPreparer(this, player, queueDataAdapter, mediaSourceFactory);
-    voiceNoteProximityManager = new VoiceNoteProximityManager(this, player);
+    voiceNoteProximityManager = new VoiceNoteProximityManager(this, player, queueDataAdapter);
 
     mediaSession.setPlaybackState(stateBuilder.build());
 
@@ -143,14 +144,15 @@ public class VoiceNotePlaybackService extends MediaBrowserServiceCompat {
       switch (playbackState) {
         case Player.STATE_BUFFERING:
         case Player.STATE_READY:
-          voiceNoteProximityManager.onPlayerReady();
           voiceNoteNotificationManager.showNotification(player);
 
           if (!playWhenReady) {
             stopForeground(false);
             becomingNoisyReceiver.unregister();
+            voiceNoteProximityManager.onPlayerEnded();
           } else {
             becomingNoisyReceiver.register();
+            voiceNoteProximityManager.onPlayerReady();
           }
           break;
         default:
@@ -162,7 +164,16 @@ public class VoiceNotePlaybackService extends MediaBrowserServiceCompat {
 
     @Override
     public void onPositionDiscontinuity(int reason) {
-      int     currentWindowIndex = player.getCurrentWindowIndex();
+      int currentWindowIndex = player.getCurrentWindowIndex();
+      if (currentWindowIndex == C.INDEX_UNSET) {
+        return;
+      }
+
+      if (reason == Player.DISCONTINUITY_REASON_PERIOD_TRANSITION) {
+        MediaDescriptionCompat mediaDescriptionCompat = queueDataAdapter.getMediaDescription(currentWindowIndex);
+        Log.d(TAG, "onPositionDiscontinuity: current window uri: " + mediaDescriptionCompat.getMediaUri());
+      }
+
       boolean isWithinThreshold  = currentWindowIndex < LOAD_MORE_THRESHOLD ||
                                    currentWindowIndex + LOAD_MORE_THRESHOLD >= queueDataAdapter.size();
 

app/src/main/java/org/thoughtcrime/securesms/components/voice/VoiceNoteProximityManager.java

@@ -8,6 +8,7 @@ import android.hardware.SensorManager;
 import android.media.AudioManager;
 import android.os.Build;
 import android.os.PowerManager;
+import android.support.v4.media.MediaDescriptionCompat;
 
 import androidx.annotation.NonNull;
 
@@ -17,6 +18,7 @@ import com.google.android.exoplayer2.SimpleExoPlayer;
 import com.google.android.exoplayer2.audio.AudioAttributes;
 import com.google.android.exoplayer2.util.Util;
 
+import org.thoughtcrime.securesms.dependencies.ApplicationDependencies;
 import org.thoughtcrime.securesms.logging.Log;
 import org.thoughtcrime.securesms.util.ServiceUtil;
 
@@ -28,19 +30,24 @@ class VoiceNoteProximityManager implements SensorEventListener {
 
   private static final float  PROXIMITY_THRESHOLD = 5f;
 
-  private final SimpleExoPlayer       player;
-  private final AudioManager          audioManager;
-  private final SensorManager         sensorManager;
-  private final Sensor                proximitySensor;
-  private final PowerManager.WakeLock wakeLock;
+  private final SimpleExoPlayer           player;
+  private final AudioManager              audioManager;
+  private final SensorManager             sensorManager;
+  private final Sensor                    proximitySensor;
+  private final PowerManager.WakeLock     wakeLock;
+  private final VoiceNoteQueueDataAdapter queueDataAdapter;
 
   private long startTime;
 
-  VoiceNoteProximityManager(@NonNull Context context, @NonNull SimpleExoPlayer player) {
-    this.player          = player;
-    this.audioManager    = ServiceUtil.getAudioManager(context);
-    this.sensorManager   = ServiceUtil.getSensorManager(context);
-    this.proximitySensor = sensorManager.getDefaultSensor(Sensor.TYPE_PROXIMITY);
+  VoiceNoteProximityManager(@NonNull Context context,
+                            @NonNull SimpleExoPlayer player,
+                            @NonNull VoiceNoteQueueDataAdapter queueDataAdapter)
+  {
+    this.player           = player;
+    this.audioManager     = ServiceUtil.getAudioManager(context);
+    this.sensorManager    = ServiceUtil.getSensorManager(context);
+    this.proximitySensor  = sensorManager.getDefaultSensor(Sensor.TYPE_PROXIMITY);
+    this.queueDataAdapter = queueDataAdapter;
 
     if (Build.VERSION.SDK_INT >= 21) {
       this.wakeLock = ServiceUtil.getPowerManager(context).newWakeLock(PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK, TAG);
@@ -81,11 +88,24 @@ class VoiceNoteProximityManager implements SensorEventListener {
 
     final int currentStreamType = Util.getStreamTypeForAudioUsage(player.getAudioAttributes().usage);
 
+    final long threadId;
+    final int  windowIndex = player.getCurrentWindowIndex();
+
+    if (queueDataAdapter.isEmpty() || windowIndex == C.INDEX_UNSET) {
+      threadId = -1;
+    } else {
+      MediaDescriptionCompat mediaDescriptionCompat = queueDataAdapter.getMediaDescription(windowIndex);
+
+      threadId = mediaDescriptionCompat.getExtras().getLong(VoiceNoteMediaDescriptionCompatFactory.EXTRA_THREAD_ID, -1);
+    }
+
     if (desiredStreamType == AudioManager.STREAM_VOICE_CALL &&
         desiredStreamType != currentStreamType              &&
-        !audioManager.isWiredHeadsetOn())
+        !audioManager.isWiredHeadsetOn()                    &&
+        threadId != -1                                      &&
+        ApplicationDependencies.getMessageNotifier().getVisibleThread() == threadId)
     {
-      if (wakeLock != null) {
+      if (wakeLock != null && !wakeLock.isHeld()) {
         wakeLock.acquire(TimeUnit.MINUTES.toMillis(30));
       }
 
@@ -102,7 +122,10 @@ class VoiceNoteProximityManager implements SensorEventListener {
                System.currentTimeMillis() - startTime > 500)
     {
       if (wakeLock != null) {
-        wakeLock.release();
+        if (wakeLock.isHeld()) {
+          wakeLock.release();
+        }
+
         player.setPlayWhenReady(false);
         player.setAudioAttributes(new AudioAttributes.Builder()
                                                      .setContentType(C.CONTENT_TYPE_MUSIC)

app/src/main/java/org/thoughtcrime/securesms/components/voice/VoiceNoteQueueDataAdapter.java

@@ -20,31 +20,31 @@ final class VoiceNoteQueueDataAdapter implements TimelineQueueEditor.QueueDataAd
   private final List<MediaDescriptionCompat> descriptions = new LinkedList<>();
 
   @Override
-  public MediaDescriptionCompat getMediaDescription(int position) {
+  public synchronized MediaDescriptionCompat getMediaDescription(int position) {
     return descriptions.get(position);
   }
 
   @Override
-  public void add(int position, MediaDescriptionCompat description) {
+  public synchronized void add(int position, MediaDescriptionCompat description) {
     descriptions.add(position, description);
   }
 
   @Override
-  public void remove(int position) {
+  public synchronized void remove(int position) {
     descriptions.remove(position);
   }
 
   @Override
-  public void move(int from, int to) {
+  public synchronized void move(int from, int to) {
     MediaDescriptionCompat description = descriptions.remove(from);
     descriptions.add(to, description);
   }
 
-  int size() {
+  synchronized int size() {
     return descriptions.size();
   }
 
-  int indexOf(@NonNull Uri uri) {
+  synchronized int indexOf(@NonNull Uri uri) {
     for (int i = 0; i < descriptions.size(); i++) {
       if (Objects.equals(uri, descriptions.get(i).getMediaUri())) {
         return i;
@@ -54,7 +54,7 @@ final class VoiceNoteQueueDataAdapter implements TimelineQueueEditor.QueueDataAd
     return -1;
   }
 
-  int indexAfter(@NonNull MediaDescriptionCompat target) {
+  synchronized int indexAfter(@NonNull MediaDescriptionCompat target) {
     if (isEmpty()) {
       return 0;
     }
@@ -71,11 +71,11 @@ final class VoiceNoteQueueDataAdapter implements TimelineQueueEditor.QueueDataAd
     return descriptions.size();
   }
 
-  boolean isEmpty() {
+  synchronized boolean isEmpty() {
     return descriptions.isEmpty();
   }
 
-  void clear() {
+  synchronized void clear() {
     descriptions.clear();
   }
 }

app/src/main/java/org/thoughtcrime/securesms/components/webrtc/BroadcastVideoSink.java

@@ -1,43 +1,91 @@
 package org.thoughtcrime.securesms.components.webrtc;
 
+import android.graphics.Point;
+
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 
 import org.webrtc.EglBase;
 import org.webrtc.VideoFrame;
 import org.webrtc.VideoSink;
+import org.whispersystems.libsignal.util.Pair;
 
-import java.lang.ref.WeakReference;
-import java.util.Iterator;
-import java.util.LinkedList;
 import java.util.WeakHashMap;
 
 public class BroadcastVideoSink implements VideoSink {
 
   private final EglBase                         eglBase;
   private final WeakHashMap<VideoSink, Boolean> sinks;
+  private final WeakHashMap<Object, Point>      requestingSizes;
 
   public BroadcastVideoSink(@Nullable EglBase eglBase) {
-    this.eglBase = eglBase;
-    this.sinks   = new WeakHashMap<>();
+    this.eglBase         = eglBase;
+    this.sinks           = new WeakHashMap<>();
+    this.requestingSizes = new WeakHashMap<>();
   }
 
   public @Nullable EglBase getEglBase() {
     return eglBase;
   }
 
-  public void addSink(@NonNull VideoSink sink) {
+  public synchronized void addSink(@NonNull VideoSink sink) {
     sinks.put(sink, true);
   }
 
-  public void removeSink(@NonNull VideoSink sink) {
+  public synchronized void removeSink(@NonNull VideoSink sink) {
     sinks.remove(sink);
   }
 
   @Override
-  public void onFrame(@NonNull VideoFrame videoFrame) {
+  public synchronized void onFrame(@NonNull VideoFrame videoFrame) {
     for (VideoSink sink : sinks.keySet()) {
       sink.onFrame(videoFrame);
     }
   }
+
+  void putRequestingSize(@NonNull Object object, @NonNull Point size) {
+    synchronized (requestingSizes) {
+      requestingSizes.put(object, size);
+    }
+  }
+
+  void removeRequestingSize(@NonNull Object object) {
+    synchronized (requestingSizes) {
+      requestingSizes.remove(object);
+    }
+  }
+
+  public @NonNull RequestedSize getMaxRequestingSize() {
+    int width  = 0;
+    int height = 0;
+
+    synchronized (requestingSizes) {
+      for (Point size : requestingSizes.values()) {
+        if (width < size.x) {
+          width  = size.x;
+          height = size.y;
+        }
+      }
+    }
+
+    return new RequestedSize(width, height);
+  }
+
+  public static class RequestedSize {
+    private final int width;
+    private final int height;
+
+    private RequestedSize(int width, int height) {
+      this.width  = width;
+      this.height = height;
+    }
+
+    public int getWidth() {
+      return width;
+    }
+
+    public int getHeight() {
+      return height;
+    }
+  }
 }

app/src/main/java/org/thoughtcrime/securesms/components/webrtc/CallParticipantView.java

@@ -3,6 +3,7 @@ package org.thoughtcrime.securesms.components.webrtc;
 import android.content.Context;
 import android.util.AttributeSet;
 import android.view.View;
+import android.view.ViewGroup;
 import android.widget.ImageView;
 
 import androidx.annotation.NonNull;
@@ -21,6 +22,7 @@ import org.thoughtcrime.securesms.mms.GlideApp;
 import org.thoughtcrime.securesms.recipients.Recipient;
 import org.thoughtcrime.securesms.recipients.RecipientId;
 import org.thoughtcrime.securesms.util.AvatarUtil;
+import org.thoughtcrime.securesms.util.ViewUtil;
 
 import java.util.Objects;
 
@@ -32,6 +34,9 @@ public class CallParticipantView extends ConstraintLayout {
 
   private static final FallbackPhotoProvider FALLBACK_PHOTO_PROVIDER = new FallbackPhotoProvider();
 
+  private static final int SMALL_AVATAR = ViewUtil.dpToPx(96);
+  private static final int LARGE_AVATAR = ViewUtil.dpToPx(112);
+
   private RecipientId         recipientId;
   private AvatarImageView     avatar;
   private TextureViewRenderer renderer;
@@ -59,6 +64,7 @@ public class CallParticipantView extends ConstraintLayout {
     renderer  = findViewById(R.id.call_participant_renderer);
 
     avatar.setFallbackPhotoProvider(FALLBACK_PHOTO_PROVIDER);
+    useLargeAvatar();
   }
 
   void setCallParticipant(@NonNull CallParticipant participant) {
@@ -89,6 +95,23 @@ public class CallParticipantView extends ConstraintLayout {
     pipAvatar.setVisibility(shouldRenderInPip ? View.VISIBLE : View.GONE);
   }
 
+  void useLargeAvatar() {
+    changeAvatarParams(LARGE_AVATAR);
+  }
+
+  void useSmallAvatar() {
+    changeAvatarParams(SMALL_AVATAR);
+  }
+
+  private void changeAvatarParams(int dimension) {
+    ViewGroup.LayoutParams params = avatar.getLayoutParams();
+    if (params.height != dimension) {
+      params.height = dimension;
+      params.width  = dimension;
+      avatar.setLayoutParams(params);
+    }
+  }
+
   private void setPipAvatar(@NonNull Recipient recipient) {
     ContactPhoto         contactPhoto  = recipient.getContactPhoto();
     FallbackContactPhoto fallbackPhoto = recipient.getFallbackContactPhoto(FALLBACK_PHOTO_PROVIDER);

app/src/main/java/org/thoughtcrime/securesms/components/webrtc/CallParticipantsLayout.java

@@ -7,6 +7,7 @@ import android.view.View;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.cardview.widget.CardView;
 
 import com.google.android.flexbox.AlignItems;
 import com.google.android.flexbox.FlexboxLayout;
@@ -14,6 +15,7 @@ import com.google.android.flexbox.FlexboxLayout;
 import org.thoughtcrime.securesms.R;
 import org.thoughtcrime.securesms.events.CallParticipant;
 import org.thoughtcrime.securesms.util.Util;
+import org.thoughtcrime.securesms.util.ViewUtil;
 
 import java.util.Collections;
 import java.util.List;
@@ -24,6 +26,9 @@ import java.util.List;
  */
 public class CallParticipantsLayout extends FlexboxLayout {
 
+  private static final int MULTIPLE_PARTICIPANT_SPACING = ViewUtil.dpToPx(3);
+  private static final int CORNER_RADIUS                = ViewUtil.dpToPx(10);
+
   private List<CallParticipant> callParticipants = Collections.emptyList();
   private boolean               shouldRenderInPip;
 
@@ -46,17 +51,33 @@ public class CallParticipantsLayout extends FlexboxLayout {
   }
 
   private void updateLayout() {
+    int previousChildCount = getChildCount();
+
     if (shouldRenderInPip && Util.hasItems(callParticipants)) {
       updateChildrenCount(1);
-      update(0, callParticipants.get(0));
+      update(0, 1, callParticipants.get(0));
     } else {
       int count = callParticipants.size();
       updateChildrenCount(count);
 
-      for (int i = 0; i < callParticipants.size(); i++) {
-        update(i, callParticipants.get(i));
+      for (int i = 0; i < count; i++) {
+        update(i, count, callParticipants.get(i));
       }
     }
+
+    if (previousChildCount != getChildCount()) {
+      updateMarginsForLayout();
+    }
+  }
+
+  private void updateMarginsForLayout() {
+    MarginLayoutParams layoutParams = (MarginLayoutParams) getLayoutParams();
+    if (callParticipants.size() > 1 && !shouldRenderInPip) {
+      layoutParams.setMargins(MULTIPLE_PARTICIPANT_SPACING, ViewUtil.getStatusBarHeight(this), MULTIPLE_PARTICIPANT_SPACING, 0);
+    } else {
+      layoutParams.setMargins(0, 0, 0, 0);
+    }
+    setLayoutParams(layoutParams);
   }
 
   private void updateChildrenCount(int count) {
@@ -72,15 +93,33 @@ public class CallParticipantsLayout extends FlexboxLayout {
     }
   }
 
-  private void update(int index, @NonNull CallParticipant participant) {
-    CallParticipantView callParticipantView = (CallParticipantView) getChildAt(index);
+  private void update(int index, int count, @NonNull CallParticipant participant) {
+    View                view                = getChildAt(index);
+    CardView            cardView            = view.findViewById(R.id.group_call_participant_card_wrapper);
+    CallParticipantView callParticipantView = view.findViewById(R.id.group_call_participant);
+
     callParticipantView.setCallParticipant(participant);
     callParticipantView.setRenderInPip(shouldRenderInPip);
-    setChildLayoutParams(callParticipantView, index, getChildCount());
+
+    if (count > 1) {
+      view.setPadding(MULTIPLE_PARTICIPANT_SPACING, MULTIPLE_PARTICIPANT_SPACING, MULTIPLE_PARTICIPANT_SPACING, MULTIPLE_PARTICIPANT_SPACING);
+      cardView.setRadius(CORNER_RADIUS);
+    } else {
+      view.setPadding(0, 0, 0, 0);
+      cardView.setRadius(0);
+    }
+
+    if (count > 2) {
+      callParticipantView.useSmallAvatar();
+    } else {
+      callParticipantView.useLargeAvatar();
+    }
+
+    setChildLayoutParams(view, index, getChildCount());
   }
 
   private void addCallParticipantView() {
-    View                       view   = LayoutInflater.from(getContext()).inflate(R.layout.call_participant_item, this, false);
+    View                       view   = LayoutInflater.from(getContext()).inflate(R.layout.group_call_participant_item, this, false);
     FlexboxLayout.LayoutParams params = (FlexboxLayout.LayoutParams) view.getLayoutParams();
 
     params.setAlignSelf(AlignItems.STRETCH);

app/src/main/java/org/thoughtcrime/securesms/components/webrtc/CallParticipantsState.java

@@ -1,8 +1,11 @@
 package org.thoughtcrime.securesms.components.webrtc;
 
+import android.content.Context;
+
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 
+import org.thoughtcrime.securesms.R;
 import org.thoughtcrime.securesms.events.CallParticipant;
 import org.thoughtcrime.securesms.events.WebRtcViewModel;
 import org.thoughtcrime.securesms.ringrtc.CameraState;
@@ -21,24 +24,27 @@ public final class CallParticipantsState {
   private static final int SMALL_GROUP_MAX = 6;
 
   public static final CallParticipantsState STARTING_STATE  = new CallParticipantsState(WebRtcViewModel.State.CALL_DISCONNECTED,
-                                                                                       Collections.emptyList(),
-                                                                                       CallParticipant.createLocal(CameraState.UNKNOWN, new BroadcastVideoSink(null), false),
-                                                                                       null,
-                                                                                       WebRtcLocalRenderState.GONE,
-                                                                                       false,
-                                                                                       false,
-                                                                                       false);
+                                                                                        WebRtcViewModel.GroupCallState.IDLE,
+                                                                                        Collections.emptyList(),
+                                                                                        CallParticipant.createLocal(CameraState.UNKNOWN, new BroadcastVideoSink(null), false),
+                                                                                        null,
+                                                                                        WebRtcLocalRenderState.GONE,
+                                                                                        false,
+                                                                                        false,
+                                                                                        false);
 
-  private final WebRtcViewModel.State  callState;
-  private final List<CallParticipant>  remoteParticipants;
-  private final CallParticipant        localParticipant;
-  private final CallParticipant        focusedParticipant;
-  private final WebRtcLocalRenderState localRenderState;
-  private final boolean                isInPipMode;
-  private final boolean                showVideoForOutgoing;
-  private final boolean                isViewingFocusedParticipant;
+  private final WebRtcViewModel.State          callState;
+  private final WebRtcViewModel.GroupCallState groupCallState;
+  private final List<CallParticipant>          remoteParticipants;
+  private final CallParticipant                localParticipant;
+  private final CallParticipant                focusedParticipant;
+  private final WebRtcLocalRenderState         localRenderState;
+  private final boolean                        isInPipMode;
+  private final boolean                        showVideoForOutgoing;
+  private final boolean                        isViewingFocusedParticipant;
 
   public CallParticipantsState(@NonNull WebRtcViewModel.State callState,
+                               @NonNull WebRtcViewModel.GroupCallState groupCallState,
                                @NonNull List<CallParticipant> remoteParticipants,
                                @NonNull CallParticipant localParticipant,
                                @Nullable CallParticipant focusedParticipant,
@@ -48,6 +54,7 @@ public final class CallParticipantsState {
                                boolean isViewingFocusedParticipant)
   {
     this.callState                   = callState;
+    this.groupCallState              = groupCallState;
     this.remoteParticipants          = remoteParticipants;
     this.localParticipant            = localParticipant;
     this.localRenderState            = localRenderState;
@@ -61,6 +68,10 @@ public final class CallParticipantsState {
     return callState;
   }
 
+  public @NonNull WebRtcViewModel.GroupCallState getGroupCallState() {
+    return groupCallState;
+  }
+
   public @NonNull List<CallParticipant> getGridParticipants() {
     if (getAllRemoteParticipants().size() > SMALL_GROUP_MAX) {
       return getAllRemoteParticipants().subList(0, SMALL_GROUP_MAX);
@@ -87,6 +98,30 @@ public final class CallParticipantsState {
     return listParticipants;
   }
 
+  public @NonNull String getRemoteParticipantsDescription(@NonNull Context context) {
+    switch (remoteParticipants.size()) {
+      case 0:
+        return context.getString(R.string.WebRtcCallView__no_one_else_is_here);
+      case 1:
+        if (callState == WebRtcViewModel.State.CALL_PRE_JOIN && groupCallState.isNotIdle()) {
+          return context.getString(R.string.WebRtcCallView__s_is_in_this_call, remoteParticipants.get(0).getRecipient().getShortDisplayName(context));
+        } else {
+          return remoteParticipants.get(0).getRecipient().getDisplayName(context);
+        }
+      case 2:
+        return context.getString(R.string.WebRtcCallView__s_and_s_are_in_this_call,
+                                 remoteParticipants.get(0).getRecipient().getShortDisplayName(context),
+                                 remoteParticipants.get(1).getRecipient().getShortDisplayName(context));
+      default:
+        int others = remoteParticipants.size() - 2;
+        return context.getResources().getQuantityString(R.plurals.WebRtcCallView__s_s_and_d_others_are_in_this_call,
+                                                        others,
+                                                        remoteParticipants.get(0).getRecipient().getShortDisplayName(context),
+                                                        remoteParticipants.get(1).getRecipient().getShortDisplayName(context),
+                                                        others);
+    }
+  }
+
   public @NonNull List<CallParticipant> getAllRemoteParticipants() {
     return remoteParticipants;
   }
@@ -132,6 +167,7 @@ public final class CallParticipantsState {
     CallParticipant focused = oldState.remoteParticipants.isEmpty() ? null : oldState.remoteParticipants.get(0);
 
     return new CallParticipantsState(webRtcViewModel.getState(),
+                                     webRtcViewModel.getGroupState(),
                                      webRtcViewModel.getRemoteParticipants(),
                                      webRtcViewModel.getLocalParticipant(),
                                      focused,
@@ -152,6 +188,7 @@ public final class CallParticipantsState {
     CallParticipant focused = oldState.remoteParticipants.isEmpty() ? null : oldState.remoteParticipants.get(0);
 
     return new CallParticipantsState(oldState.callState,
+                                     oldState.groupCallState,
                                      oldState.remoteParticipants,
                                      oldState.localParticipant,
                                      focused,
@@ -172,6 +209,7 @@ public final class CallParticipantsState {
                                                                        selectedPage == SelectedPage.FOCUSED);
 
     return new CallParticipantsState(oldState.callState,
+                                     oldState.groupCallState,
                                      oldState.remoteParticipants,
                                      oldState.localParticipant,
                                      focused,
@@ -193,12 +231,12 @@ public final class CallParticipantsState {
 
     if (displayLocal || showVideoForOutgoing) {
       if (callState == WebRtcViewModel.State.CALL_CONNECTED) {
-        if (isViewingFocusedParticipant || numberOfRemoteParticipants > 3) {
-          localRenderState = WebRtcLocalRenderState.SMALL_SQUARE;
+        if (isViewingFocusedParticipant || numberOfRemoteParticipants > 1) {
+          localRenderState = WebRtcLocalRenderState.SMALLER_RECTANGLE;
         } else {
           localRenderState = WebRtcLocalRenderState.SMALL_RECTANGLE;
         }
-      } else if (callState != WebRtcViewModel.State.CALL_DISCONNECTED) {
+      } else if (callState != WebRtcViewModel.State.CALL_INCOMING && callState != WebRtcViewModel.State.CALL_DISCONNECTED) {
         localRenderState = WebRtcLocalRenderState.LARGE;
       }
     } else if (callState == WebRtcViewModel.State.CALL_PRE_JOIN) {

app/src/main/java/org/thoughtcrime/securesms/components/webrtc/PictureInPictureGestureHelper.java

@@ -58,6 +58,13 @@ public class PictureInPictureGestureHelper extends GestureDetector.SimpleOnGestu
     GestureDetectorCompat         gestureDetector = new GestureDetectorCompat(child.getContext(), helper);
 
     parent.setOnInterceptTouchEventListener((event) -> {
+      final int action       = event.getAction();
+      final int pointerIndex = (action & MotionEvent.ACTION_POINTER_INDEX_MASK) >> MotionEvent.ACTION_POINTER_INDEX_SHIFT;
+
+      if (pointerIndex > 0) {
+        return false;
+      }
+
       if (helper.velocityTracker == null) {
         helper.velocityTracker = VelocityTracker.obtain();
       }
@@ -163,8 +170,8 @@ public class PictureInPictureGestureHelper extends GestureDetector.SimpleOnGestu
   @Override
   public boolean onDown(MotionEvent e) {
     activePointerId = e.getPointerId(0);
-    lastTouchX      = e.getX(activePointerId) + child.getX();
-    lastTouchY      = e.getY(activePointerId) + child.getY();
+    lastTouchX      = e.getX(0) + child.getX();
+    lastTouchY      = e.getY(0) + child.getY();
     isDragging      = true;
     pipWidth        = child.getMeasuredWidth();
     pipHeight       = child.getMeasuredHeight();
@@ -175,7 +182,13 @@ public class PictureInPictureGestureHelper extends GestureDetector.SimpleOnGestu
 
   @Override
   public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
-    int   pointerIndex = e2.findPointerIndex(activePointerId);
+    int pointerIndex = e2.findPointerIndex(activePointerId);
+
+    if (pointerIndex == -1) {
+      fling();
+      return false;
+    }
+
     float x            = e2.getX(pointerIndex) + child.getX();
     float y            = e2.getY(pointerIndex) + child.getY();
     float dx           = x - lastTouchX;

app/src/main/java/org/thoughtcrime/securesms/components/webrtc/TextureViewRenderer.java

@@ -10,8 +10,12 @@ import android.view.TextureView;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.lifecycle.DefaultLifecycleObserver;
+import androidx.lifecycle.Lifecycle;
+import androidx.lifecycle.LifecycleOwner;
 
 import org.thoughtcrime.securesms.logging.Log;
+import org.thoughtcrime.securesms.util.ViewUtil;
 import org.webrtc.EglBase;
 import org.webrtc.EglRenderer;
 import org.webrtc.GlRectDrawer;
@@ -38,6 +42,7 @@ public class TextureViewRenderer extends TextureView implements TextureView.Surf
   private int                           surfaceHeight;
   private boolean                       isInitialized;
   private BroadcastVideoSink            attachedVideoSink;
+  private Lifecycle                     lifecycle;
 
   public TextureViewRenderer(@NonNull Context context) {
     super(context);
@@ -59,7 +64,7 @@ public class TextureViewRenderer extends TextureView implements TextureView.Surf
     this.init(eglBase.getEglBaseContext(), null, EglBase.CONFIG_PLAIN, new GlRectDrawer());
   }
 
-  public void init(@NonNull EglBase.Context sharedContext, @NonNull RendererCommon.RendererEvents rendererEvents, @NonNull int[] configAttributes, @NonNull RendererCommon.GlDrawer drawer) {
+  public void init(@NonNull EglBase.Context sharedContext, @Nullable RendererCommon.RendererEvents rendererEvents, @NonNull int[] configAttributes, @NonNull RendererCommon.GlDrawer drawer) {
     ThreadUtils.checkIsOnMainThread();
 
     this.rendererEvents     = rendererEvents;
@@ -67,6 +72,16 @@ public class TextureViewRenderer extends TextureView implements TextureView.Surf
     this.rotatedFrameHeight = 0;
 
     this.eglRenderer.init(sharedContext, this, configAttributes, drawer);
+
+    this.lifecycle = ViewUtil.getActivityLifecycle(this);
+    if (lifecycle != null) {
+      lifecycle.addObserver(new DefaultLifecycleObserver() {
+        @Override
+        public void onDestroy(@NonNull LifecycleOwner owner) {
+          release();
+        }
+      });
+    }
   }
 
   public void attachBroadcastVideoSink(@Nullable BroadcastVideoSink videoSink) {
@@ -76,10 +91,12 @@ public class TextureViewRenderer extends TextureView implements TextureView.Surf
 
     if (attachedVideoSink != null) {
       attachedVideoSink.removeSink(this);
+      attachedVideoSink.removeRequestingSize(this);
     }
 
     if (videoSink != null) {
       videoSink.addSink(this);
+      videoSink.putRequestingSize(this, new Point(getWidth(), getHeight()));
     } else {
       clearImage();
     }
@@ -90,11 +107,17 @@ public class TextureViewRenderer extends TextureView implements TextureView.Surf
   @Override
   protected void onDetachedFromWindow() {
     super.onDetachedFromWindow();
-    release();
+    if (lifecycle == null || lifecycle.getCurrentState() == Lifecycle.State.DESTROYED) {
+      release();
+    }
   }
 
   public void release() {
     eglRenderer.release();
+    if (attachedVideoSink != null) {
+      attachedVideoSink.removeSink(this);
+      attachedVideoSink.removeRequestingSize(this);
+    }
   }
 
   public void addFrameListener(@NonNull EglRenderer.FrameListener listener, float scale, @NonNull RendererCommon.GlDrawer drawerParam) {
@@ -163,6 +186,10 @@ public class TextureViewRenderer extends TextureView implements TextureView.Surf
     setMeasuredDimension(size.x, size.y);
 
     Log.d(TAG, "onMeasure(). New size: " + size.x + "x" + size.y);
+
+    if (attachedVideoSink != null) {
+      attachedVideoSink.putRequestingSize(this, size);
+    }
   }
 
   @Override

app/src/main/java/org/thoughtcrime/securesms/components/webrtc/WebRtcCallView.java

@@ -5,6 +5,7 @@ import android.graphics.ColorMatrix;
 import android.graphics.ColorMatrixColorFilter;
 import android.util.AttributeSet;
 import android.view.LayoutInflater;
+import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.animation.Animation;
@@ -22,7 +23,6 @@ import androidx.constraintlayout.widget.Guideline;
 import androidx.core.util.Consumer;
 import androidx.recyclerview.widget.RecyclerView;
 import androidx.transition.AutoTransition;
-import androidx.transition.ChangeBounds;
 import androidx.transition.Transition;
 import androidx.transition.TransitionManager;
 import androidx.transition.TransitionSet;
@@ -31,12 +31,14 @@ import androidx.viewpager2.widget.ViewPager2;
 
 import com.bumptech.glide.load.engine.DiskCacheStrategy;
 import com.bumptech.glide.load.resource.bitmap.CenterCrop;
+import com.google.android.material.button.MaterialButton;
 
 import org.thoughtcrime.securesms.R;
 import org.thoughtcrime.securesms.animation.ResizeAnimation;
 import org.thoughtcrime.securesms.components.AccessibleToggleButton;
 import org.thoughtcrime.securesms.contacts.avatars.ProfileContactPhoto;
 import org.thoughtcrime.securesms.events.CallParticipant;
+import org.thoughtcrime.securesms.events.WebRtcViewModel;
 import org.thoughtcrime.securesms.mediasend.SimpleAnimationListener;
 import org.thoughtcrime.securesms.mms.GlideApp;
 import org.thoughtcrime.securesms.recipients.Recipient;
@@ -89,8 +91,10 @@ public class WebRtcCallView extends FrameLayout {
   private ViewPager2                    callParticipantsPager;
   private RecyclerView                  callParticipantsRecycler;
   private Toolbar                       toolbar;
+  private MaterialButton                startCall;
   private int                           pagerBottomMarginDp;
   private boolean                       controlsVisible = true;
+  private EventListener                 eventListener;
 
   private WebRtcCallParticipantsPagerAdapter    pagerAdapter;
   private WebRtcCallParticipantsRecyclerAdapter recyclerAdapter;
@@ -143,13 +147,13 @@ public class WebRtcCallView extends FrameLayout {
     callParticipantsPager         = findViewById(R.id.call_screen_participants_pager);
     callParticipantsRecycler      = findViewById(R.id.call_screen_participants_recycler);
     toolbar                       = findViewById(R.id.call_screen_toolbar);
+    startCall                     = findViewById(R.id.call_screen_start_call_start_call);
 
     View      topGradient            = findViewById(R.id.call_screen_header_gradient);
     View      decline                = findViewById(R.id.call_screen_decline_call);
     View      answerLabel            = findViewById(R.id.call_screen_answer_call_label);
     View      declineLabel           = findViewById(R.id.call_screen_decline_call_label);
     Guideline statusBarGuideline     = findViewById(R.id.call_screen_status_bar_guideline);
-    View      startCall              = findViewById(R.id.call_screen_start_call_start_call);
     View      cancelStartCall        = findViewById(R.id.call_screen_start_call_cancel);
 
     callParticipantsPager.setPageTransformer(new MarginPageTransformer(ViewUtil.dpToPx(4)));
@@ -164,6 +168,7 @@ public class WebRtcCallView extends FrameLayout {
       @Override
       public void onPageSelected(int position) {
         runIfNonNull(controlsListener, listener -> listener.onPageChanged(position == 0 ? CallParticipantsState.SelectedPage.GRID : CallParticipantsState.SelectedPage.FOCUSED));
+        runIfNonNull(eventListener, EventListener::onPotentialLayoutChange);
       }
     });
 
@@ -234,6 +239,10 @@ public class WebRtcCallView extends FrameLayout {
     this.controlsListener = controlsListener;
   }
 
+  public void setEventListener(@Nullable EventListener eventListener) {
+    this.eventListener = eventListener;
+  }
+
   public void setMicEnabled(boolean isMicEnabled) {
     micToggle.setChecked(isMicEnabled, false);
   }
@@ -249,6 +258,10 @@ public class WebRtcCallView extends FrameLayout {
       pages.add(WebRtcCallParticipantsPage.forSingleParticipant(state.getFocusedParticipant(), state.isInPipMode()));
     }
 
+    if (state.getGroupCallState().isConnected()) {
+      recipientName.setText(state.getRemoteParticipantsDescription(getContext()));
+    }
+
     pagerAdapter.submitList(pages);
     recyclerAdapter.submitList(state.getListParticipants());
     updateLocalCallParticipant(state.getLocalRenderState(), state.getLocalParticipant());
@@ -258,6 +271,10 @@ public class WebRtcCallView extends FrameLayout {
     } else {
       layoutParticipantsForSmallCount();
     }
+
+    if (eventListener != null) {
+      eventListener.onPotentialLayoutChange();
+    }
   }
 
   public void updateLocalCallParticipant(@NonNull WebRtcLocalRenderState state, @NonNull CallParticipant localCallParticipant) {
@@ -284,17 +301,17 @@ public class WebRtcCallView extends FrameLayout {
       case SMALL_RECTANGLE:
         smallLocalRenderFrame.setVisibility(View.VISIBLE);
         smallLocalRender.attachBroadcastVideoSink(localCallParticipant.getVideoSink());
-        animatePipToRectangle();
+        animatePipToLargeRectangle();
 
         largeLocalRender.attachBroadcastVideoSink(null);
         largeLocalRenderFrame.setVisibility(View.GONE);
 
         videoToggle.setChecked(true, false);
         break;
-      case SMALL_SQUARE:
+      case SMALLER_RECTANGLE:
         smallLocalRenderFrame.setVisibility(View.VISIBLE);
         smallLocalRender.attachBroadcastVideoSink(localCallParticipant.getVideoSink());
-        animatePipToSquare();
+        animatePipToSmallRectangle();
 
         largeLocalRender.attachBroadcastVideoSink(null);
         largeLocalRenderFrame.setVisibility(View.GONE);
@@ -342,7 +359,7 @@ public class WebRtcCallView extends FrameLayout {
     recipientId = recipient.getId();
 
     if (recipient.isGroup()) {
-      recipientName.setText(R.string.WebRtcCallView__group_call);
+      recipientName.setText(getContext().getString(R.string.WebRtcCallView__s_group_call, recipient.getDisplayName(getContext())));
       if (toolbar.getMenu().findItem(R.id.menu_group_call_participants_list) == null) {
         toolbar.inflateMenu(R.menu.group_call);
         toolbar.setOnMenuItemClickListener(unused -> showParticipantsList());
@@ -376,6 +393,27 @@ public class WebRtcCallView extends FrameLayout {
     }
   }
 
+  public void setStatusFromGroupCallState(@NonNull WebRtcViewModel.GroupCallState groupCallState) {
+    switch (groupCallState) {
+      case DISCONNECTED:
+        status.setText(R.string.WebRtcCallView__disconnected);
+        break;
+      case CONNECTING:
+        status.setText(R.string.WebRtcCallView__connecting);
+        break;
+      case RECONNECTING:
+        status.setText(R.string.WebRtcCallView__reconnecting);
+        break;
+      case CONNECTED_AND_JOINING:
+        status.setText(R.string.WebRtcCallView__joining);
+        break;
+      case CONNECTED_AND_JOINED:
+      case CONNECTED:
+        status.setText("");
+        break;
+    }
+  }
+
   public void setWebRtcControls(@NonNull WebRtcControls webRtcControls) {
     Set<View> lastVisibleSet = new HashSet<>(visibleViewSet);
 
@@ -384,6 +422,14 @@ public class WebRtcCallView extends FrameLayout {
     if (webRtcControls.displayStartCallControls()) {
       visibleViewSet.add(footerGradient);
       visibleViewSet.add(startCallControls);
+
+      startCall.setText(webRtcControls.getStartCallButtonText());
+    }
+
+    MenuItem item = toolbar.getMenu().findItem(R.id.menu_group_call_participants_list);
+    if (item != null) {
+      item.setVisible(webRtcControls.displayGroupMembersButton());
+      item.setEnabled(webRtcControls.displayGroupMembersButton());
     }
 
     if (webRtcControls.displayTopViews()) {
@@ -463,7 +509,7 @@ public class WebRtcCallView extends FrameLayout {
     return videoToggle;
   }
 
-  private void animatePipToRectangle() {
+  private void animatePipToLargeRectangle() {
     ResizeAnimation animation = new ResizeAnimation(smallLocalRenderFrame, ViewUtil.dpToPx(90), ViewUtil.dpToPx(160));
     animation.setDuration(PIP_RESIZE_DURATION);
     animation.setAnimationListener(new SimpleAnimationListener() {
@@ -477,11 +523,11 @@ public class WebRtcCallView extends FrameLayout {
     smallLocalRenderFrame.startAnimation(animation);
   }
 
-  private void animatePipToSquare() {
+  private void animatePipToSmallRectangle() {
     pictureInPictureGestureHelper.lockToBottomEnd();
 
     pictureInPictureGestureHelper.performAfterFling(() -> {
-      ResizeAnimation animation = new ResizeAnimation(smallLocalRenderFrame, ViewUtil.dpToPx(72), ViewUtil.dpToPx(72));
+      ResizeAnimation animation = new ResizeAnimation(smallLocalRenderFrame, ViewUtil.dpToPx(40), ViewUtil.dpToPx(72));
       animation.setDuration(PIP_RESIZE_DURATION);
       animation.setAnimationListener(new SimpleAnimationListener() {
         @Override
@@ -553,6 +599,7 @@ public class WebRtcCallView extends FrameLayout {
     Transition transition = new AutoTransition().setOrdering(TransitionSet.ORDERING_TOGETHER)
                                                 .setDuration(TRANSITION_DURATION_MILLIS);
 
+    TransitionManager.endTransitions(parent);
     TransitionManager.beginDelayedTransition(parent, transition);
 
     ConstraintSet constraintSet = new ConstraintSet();
@@ -570,6 +617,7 @@ public class WebRtcCallView extends FrameLayout {
   private void fadeInNewUiState(@NonNull Set<View> previouslyVisibleViewSet, boolean useSmallMargins) {
     Transition transition = new AutoTransition().setDuration(TRANSITION_DURATION_MILLIS);
 
+    TransitionManager.endTransitions(parent);
     TransitionManager.beginDelayedTransition(parent, transition);
 
     ConstraintSet constraintSet = new ConstraintSet();
@@ -605,9 +653,9 @@ public class WebRtcCallView extends FrameLayout {
     getHandler().removeCallbacks(fadeOutRunnable);
   }
 
-  private static void runIfNonNull(@Nullable ControlsListener controlsListener, @NonNull Consumer<ControlsListener> controlsListenerConsumer) {
-    if (controlsListener != null) {
-      controlsListenerConsumer.accept(controlsListener);
+  private static <T> void runIfNonNull(@Nullable T listener, @NonNull Consumer<T> listenerConsumer) {
+    if (listener != null) {
+      listenerConsumer.accept(listener);
     }
   }
 
@@ -647,4 +695,8 @@ public class WebRtcCallView extends FrameLayout {
     void onShowParticipantsList();
     void onPageChanged(@NonNull CallParticipantsState.SelectedPage page);
   }
+
+  public interface EventListener {
+    void onPotentialLayoutChange();
+  }
 }

app/src/main/java/org/thoughtcrime/securesms/components/webrtc/WebRtcCallViewModel.java

@@ -15,6 +15,7 @@ import org.thoughtcrime.securesms.events.WebRtcViewModel;
 import org.thoughtcrime.securesms.recipients.LiveRecipient;
 import org.thoughtcrime.securesms.recipients.Recipient;
 import org.thoughtcrime.securesms.util.SingleLiveEvent;
+import org.thoughtcrime.securesms.util.Util;
 import org.thoughtcrime.securesms.util.livedata.LiveDataUtil;
 
 public class WebRtcCallViewModel extends ViewModel {
@@ -104,11 +105,13 @@ public class WebRtcCallViewModel extends ViewModel {
     participantsState.setValue(CallParticipantsState.update(participantsState.getValue(), webRtcViewModel, enableVideo));
 
     updateWebRtcControls(webRtcViewModel.getState(),
+                         webRtcViewModel.getGroupState(),
                          localParticipant.getCameraState().isEnabled(),
                          webRtcViewModel.isRemoteVideoEnabled(),
                          webRtcViewModel.isRemoteVideoOffer(),
                          localParticipant.isMoreThanOneCameraAvailable(),
                          webRtcViewModel.isBluetoothAvailable(),
+                         Util.hasItems(webRtcViewModel.getRemoteParticipants()),
                          repository.getAudioOutput());
 
     if (webRtcViewModel.getState() == WebRtcViewModel.State.CALL_CONNECTED && callConnectedTime == -1) {
@@ -133,11 +136,13 @@ public class WebRtcCallViewModel extends ViewModel {
   }
 
   private void updateWebRtcControls(@NonNull WebRtcViewModel.State state,
+                                    @NonNull WebRtcViewModel.GroupCallState groupState,
                                     boolean isLocalVideoEnabled,
                                     boolean isRemoteVideoEnabled,
                                     boolean isRemoteVideoOffer,
                                     boolean isMoreThanOneCameraAvailable,
                                     boolean isBluetoothAvailable,
+                                    boolean hasAtLeastOneRemote,
                                     @NonNull WebRtcAudioOutput audioOutput)
   {
     final WebRtcControls.CallState callState;
@@ -166,12 +171,34 @@ public class WebRtcCallViewModel extends ViewModel {
         callState = WebRtcControls.CallState.ONGOING;
     }
 
+    final WebRtcControls.GroupCallState groupCallState;
+
+    switch (groupState) {
+      case DISCONNECTED:
+        groupCallState = WebRtcControls.GroupCallState.DISCONNECTED;
+        break;
+      case CONNECTING:
+      case RECONNECTING:
+        groupCallState = WebRtcControls.GroupCallState.CONNECTING;
+        break;
+      case CONNECTED:
+      case CONNECTED_AND_JOINING:
+      case CONNECTED_AND_JOINED:
+        groupCallState = WebRtcControls.GroupCallState.CONNECTED;
+        break;
+      default:
+        groupCallState = WebRtcControls.GroupCallState.NONE;
+        break;
+    }
+
     webRtcControls.setValue(new WebRtcControls(isLocalVideoEnabled,
                                                isRemoteVideoEnabled || isRemoteVideoOffer,
                                                isMoreThanOneCameraAvailable,
                                                isBluetoothAvailable,
                                                Boolean.TRUE.equals(isInPipMode.getValue()),
+                                               hasAtLeastOneRemote,
                                                callState,
+                                               groupCallState,
                                                audioOutput));
   }
 

app/src/main/java/org/thoughtcrime/securesms/components/webrtc/WebRtcControls.java

@@ -1,22 +1,27 @@
 package org.thoughtcrime.securesms.components.webrtc;
 
 import androidx.annotation.NonNull;
+import androidx.annotation.StringRes;
+
+import org.thoughtcrime.securesms.R;
 
 public final class WebRtcControls {
 
   public static final WebRtcControls NONE = new WebRtcControls();
-  public static final WebRtcControls PIP  = new WebRtcControls(false, false, false, false, true, CallState.NONE, WebRtcAudioOutput.HANDSET);
+  public static final WebRtcControls PIP  = new WebRtcControls(false, false, false, false, true, false, CallState.NONE, GroupCallState.NONE, WebRtcAudioOutput.HANDSET);
 
   private final boolean           isRemoteVideoEnabled;
   private final boolean           isLocalVideoEnabled;
   private final boolean           isMoreThanOneCameraAvailable;
   private final boolean           isBluetoothAvailable;
   private final boolean           isInPipMode;
+  private final boolean           hasAtLeastOneRemote;
   private final CallState         callState;
+  private final GroupCallState    groupCallState;
   private final WebRtcAudioOutput audioOutput;
 
   private WebRtcControls() {
-    this(false, false, false, false, false, CallState.NONE, WebRtcAudioOutput.HANDSET);
+    this(false, false, false, false, false, false, CallState.NONE, GroupCallState.NONE, WebRtcAudioOutput.HANDSET);
   }
 
   WebRtcControls(boolean isLocalVideoEnabled,
@@ -24,7 +29,9 @@ public final class WebRtcControls {
                  boolean isMoreThanOneCameraAvailable,
                  boolean isBluetoothAvailable,
                  boolean isInPipMode,
+                 boolean hasAtLeastOneRemote,
                  @NonNull CallState callState,
+                 @NonNull GroupCallState groupCallState,
                  @NonNull WebRtcAudioOutput audioOutput)
   {
     this.isLocalVideoEnabled          = isLocalVideoEnabled;
@@ -32,7 +39,9 @@ public final class WebRtcControls {
     this.isBluetoothAvailable         = isBluetoothAvailable;
     this.isMoreThanOneCameraAvailable = isMoreThanOneCameraAvailable;
     this.isInPipMode                  = isInPipMode;
+    this.hasAtLeastOneRemote          = hasAtLeastOneRemote;
     this.callState                    = callState;
+    this.groupCallState               = groupCallState;
     this.audioOutput                  = audioOutput;
   }
 
@@ -40,6 +49,17 @@ public final class WebRtcControls {
     return isPreJoin();
   }
 
+  @StringRes int getStartCallButtonText() {
+    if (isGroupCall() && hasAtLeastOneRemote) {
+      return R.string.WebRtcCallView__join_call;
+    }
+    return R.string.WebRtcCallView__start_call;
+  }
+
+  boolean displayGroupMembersButton() {
+    return groupCallState == GroupCallState.CONNECTED;
+  }
+
   boolean displayEndCall() {
     return isAtLeastOutgoing();
   }
@@ -116,6 +136,10 @@ public final class WebRtcControls {
     return callState.isAtLeast(CallState.OUTGOING);
   }
 
+  private boolean isGroupCall() {
+    return groupCallState != GroupCallState.NONE;
+  }
+
   public enum CallState {
     NONE,
     PRE_JOIN,
@@ -124,8 +148,16 @@ public final class WebRtcControls {
     ONGOING,
     ENDING;
 
-    boolean isAtLeast(@NonNull CallState other) {
+    boolean isAtLeast(@SuppressWarnings("SameParameterValue") @NonNull CallState other) {
       return compareTo(other) >= 0;
     }
   }
+
+  public enum GroupCallState {
+    NONE,
+    DISCONNECTED,
+    CONNECTING,
+    CONNECTED,
+    RECONNECTING
+  }
 }

app/src/main/java/org/thoughtcrime/securesms/components/webrtc/WebRtcLocalRenderState.java

@@ -3,7 +3,7 @@ package org.thoughtcrime.securesms.components.webrtc;
 public enum WebRtcLocalRenderState {
   GONE,
   SMALL_RECTANGLE,
-  SMALL_SQUARE,
+  SMALLER_RECTANGLE,
   LARGE,
   LARGE_NO_VIDEO
 }

app/src/main/java/org/thoughtcrime/securesms/components/webrtc/participantslist/CallParticipantsListDialog.java

@@ -20,6 +20,7 @@ import org.thoughtcrime.securesms.R;
 import org.thoughtcrime.securesms.components.webrtc.CallParticipantsState;
 import org.thoughtcrime.securesms.components.webrtc.WebRtcCallViewModel;
 import org.thoughtcrime.securesms.events.CallParticipant;
+import org.thoughtcrime.securesms.events.WebRtcViewModel;
 import org.thoughtcrime.securesms.util.BottomSheetUtil;
 import org.thoughtcrime.securesms.util.MappingModel;
 
@@ -79,9 +80,14 @@ public class CallParticipantsListDialog extends BottomSheetDialogFragment {
   private void updateList(@NonNull CallParticipantsState callParticipantsState) {
     List<MappingModel<?>> items = new ArrayList<>();
 
-    items.add(new CallParticipantsListHeader(callParticipantsState.getAllRemoteParticipants().size() + 1));
+    boolean includeSelf = callParticipantsState.getGroupCallState() == WebRtcViewModel.GroupCallState.CONNECTED_AND_JOINED;
+
+    items.add(new CallParticipantsListHeader(callParticipantsState.getAllRemoteParticipants().size() + (includeSelf ? 1 : 0)));
+
+    if (includeSelf) {
+      items.add(new CallParticipantViewState(callParticipantsState.getLocalParticipant()));
+    }
 
-    items.add(new CallParticipantViewState(callParticipantsState.getLocalParticipant()));
     for (CallParticipant callParticipant : callParticipantsState.getAllRemoteParticipants()) {
       items.add(new CallParticipantViewState(callParticipant));
     }