Show de-registration nag view.

Signal/src/ViewControllers/HomeView/HomeViewController.m

@@ -74,6 +74,7 @@ NSString *const kArchivedConversationsReuseIdentifier = @"kArchivedConversations
 
 // Views
 
+@property (nonatomic) NSLayoutConstraint *hideDeregisteredViewConstraint;
 @property (nonatomic) NSLayoutConstraint *hideArchiveReminderViewConstraint;
 @property (nonatomic) NSLayoutConstraint *hideMissingContactsPermissionViewConstraint;
 
@@ -193,7 +194,7 @@ NSString *const kArchivedConversationsReuseIdentifier = @"kArchivedConversations
 {
     OWSAssertIsOnMainThread();
 
-    [self reloadTableViewData];
+    [self updateReminderViews];
 }
 
 #pragma mark - View Life Cycle
@@ -209,12 +210,24 @@ NSString *const kArchivedConversationsReuseIdentifier = @"kArchivedConversations
         [SignalApp.sharedApp setHomeViewController:self];
     }
 
+    ReminderView *deregisteredView =
+        [ReminderView nagWithText:NSLocalizedString(@"INBOX_VIEW_DEREGISTRATION_WARNING",
+                                      @"Label warning the user that they have been de-registered.")
+                        tapAction:^{
+                            // TODO:
+                        }];
+    [self.view addSubview:deregisteredView];
+    [deregisteredView autoPinWidthToSuperview];
+    [deregisteredView autoPinToTopLayoutGuideOfViewController:self withInset:0];
+    self.hideDeregisteredViewConstraint = [deregisteredView autoSetDimension:ALDimensionHeight toSize:0];
+    self.hideDeregisteredViewConstraint.priority = UILayoutPriorityRequired;
+
     ReminderView *archiveReminderView =
         [ReminderView explanationWithText:NSLocalizedString(@"INBOX_VIEW_ARCHIVE_MODE_REMINDER",
                                               @"Label reminding the user that they are in archive mode.")];
     [self.view addSubview:archiveReminderView];
     [archiveReminderView autoPinWidthToSuperview];
-    [archiveReminderView autoPinToTopLayoutGuideOfViewController:self withInset:0];
+    [archiveReminderView autoPinEdge:ALEdgeTop toEdge:ALEdgeBottom ofView:deregisteredView];
     self.hideArchiveReminderViewConstraint = [archiveReminderView autoSetDimension:ALDimensionHeight toSize:0];
     self.hideArchiveReminderViewConstraint.priority = UILayoutPriorityRequired;
 
@@ -270,12 +283,18 @@ NSString *const kArchivedConversationsReuseIdentifier = @"kArchivedConversations
 {
     BOOL shouldHideArchiveReminderView = self.homeViewMode != HomeViewMode_Archive;
     BOOL shouldHideMissingContactsPermissionView = !self.shouldShowMissingContactsPermissionView;
+    BOOL shouldHideDeregisteredView = !TSAccountManager.sharedInstance.isDeregistered;
+
     if (self.hideArchiveReminderViewConstraint.active == shouldHideArchiveReminderView
-        && self.hideMissingContactsPermissionViewConstraint.active == shouldHideMissingContactsPermissionView) {
+        && self.hideMissingContactsPermissionViewConstraint.active == shouldHideMissingContactsPermissionView
+        && self.hideDeregisteredViewConstraint.active == shouldHideDeregisteredView) {
         return;
     }
+
     self.hideArchiveReminderViewConstraint.active = shouldHideArchiveReminderView;
     self.hideMissingContactsPermissionViewConstraint.active = shouldHideMissingContactsPermissionView;
+    self.hideDeregisteredViewConstraint.active = shouldHideDeregisteredView;
+
     [self.view setNeedsLayout];
     [self.view layoutSubviews];
 }

Signal/src/views/ReminderView.swift

@@ -91,7 +91,7 @@ class ReminderView: UIView {
         // Label
         switch (mode) {
         case .nag:
-            label.font = UIFont.ows_regularFont(withSize: 14)
+            label.font = UIFont.ows_dynamicTypeFootnote
         case .explanation:
             label.font = UIFont.ows_dynamicTypeSubheadline
         }

Signal/translations/en.lproj/Localizable.strings

@@ -659,7 +659,7 @@
 /* table cell label in conversation settings */
 "DISAPPEARING_MESSAGES" = "Disappearing Messages";
 
-/* Info Message when added to {{group name}} which has enabled message expiration after {{time amount}}, see the *_TIME_AMOUNT strings for context. */
+/* Info Message when added to a group which has enabled disappearing messages. Embeds {{time amount}} before messages disappear, see the *_TIME_AMOUNT strings for context. */
 "DISAPPEARING_MESSAGES_CONFIGURATION_GROUP_EXISTING_FORMAT" = "Messages in this conversation will disappear after %@.";
 
 /* subheading in conversation settings */
@@ -1022,6 +1022,9 @@
 /* Label reminding the user that they are in archive mode. */
 "INBOX_VIEW_ARCHIVE_MODE_REMINDER" = "These conversations are archived. They will appear in the inbox if new messages are received.";
 
+/* Label warning the user that they have been de-registered. */
+"INBOX_VIEW_DEREGISTRATION_WARNING" = "You are not logged in. Another device may have been registered with your phone number.";
+
 /* Multi-line label explaining how to show names instead of phone numbers in your inbox */
 "INBOX_VIEW_MISSING_CONTACTS_PERMISSION" = "To see the names of your contacts, update your system settings to allow contact access.";