Include typing indicators in configuration sync messages; emit when that value changes.

SignalMessaging/contacts/OWSSyncManager.m

@@ -106,6 +106,11 @@ NSString *const kSyncManagerLastContactSyncKey = @"kTSStorageManagerOWSSyncManag
     return TSAccountManager.sharedInstance;
 }
 
+- (id<OWSTypingIndicators>)typingIndicators
+{
+    return SSKEnvironment.shared.typingIndicators;
+}
+
 #pragma mark - Notifications
 
 - (void)signalAccountsDidChange:(id)notification {
@@ -219,10 +224,12 @@ NSString *const kSyncManagerLastContactSyncKey = @"kTSStorageManagerOWSSyncManag
 
     BOOL areReadReceiptsEnabled = SSKEnvironment.shared.readReceiptManager.areReadReceiptsEnabled;
     BOOL showUnidentifiedDeliveryIndicators = Environment.shared.preferences.shouldShowUnidentifiedDeliveryIndicators;
+    BOOL showTypingIndicators = self.typingIndicators.areTypingIndicatorsEnabled;
 
     OWSSyncConfigurationMessage *syncConfigurationMessage =
         [[OWSSyncConfigurationMessage alloc] initWithReadReceiptsEnabled:areReadReceiptsEnabled
-                                      showUnidentifiedDeliveryIndicators:showUnidentifiedDeliveryIndicators];
+                                      showUnidentifiedDeliveryIndicators:showUnidentifiedDeliveryIndicators
+                                                    showTypingIndicators:showTypingIndicators];
 
     [self.editingDatabaseConnection readWriteWithBlock:^(YapDatabaseReadWriteTransaction *_Nonnull transaction) {
         [self.messageSenderJobQueue addMessage:syncConfigurationMessage transaction:transaction];

SignalServiceKit/src/Messages/DeviceSyncing/OWSSyncConfigurationMessage.h

@@ -11,7 +11,9 @@ NS_ASSUME_NONNULL_BEGIN
 - (instancetype)init NS_UNAVAILABLE;
 
 - (instancetype)initWithReadReceiptsEnabled:(BOOL)readReceiptsEnabled
-         showUnidentifiedDeliveryIndicators:(BOOL)showUnidentifiedDeliveryIndicators NS_DESIGNATED_INITIALIZER;
+         showUnidentifiedDeliveryIndicators:(BOOL)showUnidentifiedDeliveryIndicators
+                       showTypingIndicators:(BOOL)showTypingIndicators NS_DESIGNATED_INITIALIZER;
+
 - (nullable instancetype)initWithCoder:(NSCoder *)coder NS_DESIGNATED_INITIALIZER;
 
 @end

SignalServiceKit/src/Messages/DeviceSyncing/OWSSyncConfigurationMessage.m

@@ -11,13 +11,15 @@ NS_ASSUME_NONNULL_BEGIN
 
 @property (nonatomic, readonly) BOOL areReadReceiptsEnabled;
 @property (nonatomic, readonly) BOOL showUnidentifiedDeliveryIndicators;
+@property (nonatomic, readonly) BOOL showTypingIndicators;
 
 @end
 
 @implementation OWSSyncConfigurationMessage
 
 - (instancetype)initWithReadReceiptsEnabled:(BOOL)areReadReceiptsEnabled
-         showUnidentifiedDeliveryIndicators:(BOOL)showUnidentifiedDeliveryIndicators {
+         showUnidentifiedDeliveryIndicators:(BOOL)showUnidentifiedDeliveryIndicators
+         showTypingIndicators:(BOOL)showTypingIndicators {
     self = [super init];
     if (!self) {
         return nil;
@@ -25,6 +27,7 @@ NS_ASSUME_NONNULL_BEGIN
 
     _areReadReceiptsEnabled = areReadReceiptsEnabled;
     _showUnidentifiedDeliveryIndicators = showUnidentifiedDeliveryIndicators;
+    _showTypingIndicators = showTypingIndicators;
 
     return self;
 }
@@ -39,6 +42,7 @@ NS_ASSUME_NONNULL_BEGIN
     SSKProtoSyncMessageConfigurationBuilder *configurationBuilder = [SSKProtoSyncMessageConfiguration builder];
     configurationBuilder.readReceipts = self.areReadReceiptsEnabled;
     configurationBuilder.unidentifiedDeliveryIndicators = self.showUnidentifiedDeliveryIndicators;
+    configurationBuilder.typingIndicators = self.showTypingIndicators;
 
     NSError *error;
     SSKProtoSyncMessageConfiguration *_Nullable configurationProto = [configurationBuilder buildAndReturnError:&error];

SignalServiceKit/src/Util/TypingIndicators.swift

@@ -67,6 +67,10 @@ public class TypingIndicatorsImpl: NSObject, TypingIndicators {
         return SSKEnvironment.shared.primaryStorage
     }
 
+    private var syncManager: OWSSyncManagerProtocol {
+        return SSKEnvironment.shared.syncManager
+    }
+
     // MARK: -
 
     @objc
@@ -76,6 +80,8 @@ public class TypingIndicatorsImpl: NSObject, TypingIndicators {
         _areTypingIndicatorsEnabled = value
 
         primaryStorage.dbReadWriteConnection.setBool(value, forKey: kDatabaseKey_TypingIndicatorsEnabled, inCollection: kDatabaseCollection)
+        
+        syncManager.sendConfigurationSyncMessage()
     }
 
     @objc