Merge branch 'charlesmchen/tweakReadReceipts'

Signal/src/AppDelegate.m

@@ -836,8 +836,7 @@ static NSString *const kURLHostVerifyPrefix             = @"verify";
     self.isEnvironmentSetup = YES;
 
     [OWSProfileManager.sharedManager fetchLocalUsersProfile];
-    // Make sure this manager is started.
+    [[OWSReadReceiptManager sharedManager] prepareCachedValues];
-    [OWSReadReceiptManager sharedManager];
 }
 
 - (void)registrationStateDidChange

Signal/src/ViewControllers/ConversationView/ConversationViewController.m

@@ -2134,7 +2134,8 @@ typedef NS_ENUM(NSInteger, MessagesRangeSizeMode) {
                     ? NSLocalizedString(@"MESSAGE_STATUS_DELIVERED", @"message footer for delivered messages")
                     : NSLocalizedString(@"MESSAGE_STATUS_SENT", @"message footer for sent messages"));
             NSAttributedString *result = [[NSAttributedString alloc] initWithString:text];
-            if (outgoingMessage.wasDelivered && outgoingMessage.readRecipientIds.count > 0) {
+            if ([OWSReadReceiptManager.sharedManager areReadReceiptsEnabled] && outgoingMessage.wasDelivered
+                && outgoingMessage.readRecipientIds.count > 0) {
                 NSAttributedString *checkmark = [[NSAttributedString alloc]
                     initWithString:@"\uf00c "
                         attributes:@{

SignalServiceKit/src/Messages/OWSReadReceiptManager.h

@@ -57,6 +57,8 @@ NS_ASSUME_NONNULL_BEGIN
 
 #pragma mark - Settings
 
+- (void)prepareCachedValues;
+
 - (BOOL)areReadReceiptsEnabled;
 - (void)setAreReadReceiptsEnabled:(BOOL)value;
 

SignalServiceKit/src/Messages/OWSReadReceiptManager.m

@@ -114,8 +114,7 @@ NSString *const OWSReadReceiptManagerAreReadReceiptsEnabled = @"areReadReceiptsE
 // Should only be accessed while synchronized on the OWSReadReceiptManager.
 @property (nonatomic) BOOL isProcessing;
 
-// Should only be accessed while synchronized on the OWSReadReceiptManager.
+@property (atomic) NSNumber *areReadReceiptsEnabledCached;
-@property (nonatomic) NSNumber *areReadReceiptsEnabledCached;
 
 @end
 
@@ -425,32 +424,31 @@ NSString *const OWSReadReceiptManagerAreReadReceiptsEnabled = @"areReadReceiptsE
 
 #pragma mark - Settings
 
+- (void)prepareCachedValues
+{
+    [self areReadReceiptsEnabled];
+}
+
 - (BOOL)areReadReceiptsEnabled
 {
-    @synchronized(self)
+    // We don't need to worry about races around this cached value.
-    {
     if (!self.areReadReceiptsEnabledCached) {
         // Default to NO.
-            self.areReadReceiptsEnabledCached =
+        self.areReadReceiptsEnabledCached = @([self.dbConnection boolForKey:OWSReadReceiptManagerAreReadReceiptsEnabled
-                @([self.dbConnection boolForKey:OWSReadReceiptManagerAreReadReceiptsEnabled
                                                                inCollection:OWSReadReceiptManagerCollection]);
     }
 
     return [self.areReadReceiptsEnabledCached boolValue];
-    }
 }
 
 - (void)setAreReadReceiptsEnabled:(BOOL)value
 {
     DDLogInfo(@"%@ areReadReceiptsEnabled: %d.", self.tag, value);
 
-    @synchronized(self)
-    {
     [self.dbConnection setBool:value
                         forKey:OWSReadReceiptManagerAreReadReceiptsEnabled
                   inCollection:OWSReadReceiptManagerCollection];
     self.areReadReceiptsEnabledCached = @(value);
-    }
 }
 
 #pragma mark - Logging