Lock when backgrounded.

[FIXED]     When backgrounding the app and re-showing it, don't reveal
            the UI when logout is enabled.

MasterPassword/MPAppDelegate_Key.h

@@ -11,7 +11,7 @@
 @interface MPAppDelegate_Shared (Key)
 
 - (BOOL)signInAsUser:(MPUserEntity *)user usingMasterPassword:(NSString *)password;
-- (void)signOut;
+- (void)signOutAnimated:(BOOL)animated;
 
 - (void)storeSavedKeyFor:(MPUserEntity *)user;
 - (void)forgetSavedKeyFor:(MPUserEntity *)user;

MasterPassword/MPAppDelegate_Key.m

@@ -73,14 +73,15 @@ static NSDictionary *keyQuery(MPUserEntity *user) {
     }
 }
 
-- (void)signOut {
+- (void)signOutAnimated:(BOOL)animated {
 
     if (self.key)
         self.key = nil;
 
     if (self.activeUser) {
         self.activeUser = nil;
-        [[NSNotificationCenter defaultCenter] postNotificationName:MPNotificationSignedOut object:self];
+        [[NSNotificationCenter defaultCenter] postNotificationName:MPNotificationSignedOut object:self userInfo:
+         [NSDictionary dictionaryWithObject:PearlBool(animated) forKey:@"animated"]];
     }
 }
 

MasterPassword/iOS/MPAppDelegate.m

@@ -182,7 +182,11 @@
 
     [[NSNotificationCenter defaultCenter] addObserverForName:MPNotificationSignedOut object:nil queue:nil
                                                   usingBlock:^(NSNotification *note) {
-                                                      [self.navigationController performSegueWithIdentifier:@"MP_Unlock" sender:nil];
+                                                      if ([[note.userInfo objectForKey:@"animated"] boolValue])
+                                                          [self.navigationController performSegueWithIdentifier:@"MP_Unlock" sender:nil];
+                                                      else
+                                                          [self.navigationController presentViewController:[self.navigationController.storyboard instantiateViewControllerWithIdentifier:@"MPUnlockViewController"]
+                                                                                     animated:NO completion:nil];
                                                   }];
     [[NSNotificationCenter defaultCenter] addObserverForName:kIASKAppSettingChanged object:nil queue:nil
                                                   usingBlock:^(NSNotification *note) {
@@ -325,7 +329,7 @@
     [self saveContext];
 
     if (![[MPiOSConfig get].rememberLogin boolValue])
-        [self signOut];
+        [self signOutAnimated:NO];
 
     [TestFlight passCheckpoint:MPCheckpointDeactivated];
 }
@@ -487,7 +491,7 @@
         inf(@"Unsetting master password for: %@.", user.userID);
         user.keyID = nil;
         [self forgetSavedKeyFor:user];
-        [self signOut];
+        [self signOutAnimated:YES];
 
         [TestFlight passCheckpoint:MPCheckpointChangeMP];
         [[LocalyticsSession sharedLocalyticsSession] tagEvent:MPCheckpointChangeMP

MasterPassword/iOS/MPMainViewController.m

@@ -512,7 +512,7 @@
 #endif
                          {
                              inf(@"Action: Sign out");
-                             [[MPAppDelegate get] signOut];
+                             [[MPAppDelegate get] signOutAnimated:YES];
                              break;
                          }
                      }