From 11b7879d787f355cdd22816c19240150d11afd8f Mon Sep 17 00:00:00 2001
From: Matthew Chen <matthew@signal.org>
Date: Fri, 21 Jun 2019 16:00:43 -0400
Subject: [PATCH] Add onlyModernNotificationClearance feature flag.

---
 .../Notifications/UserNotificationsAdaptee.swift          | 6 +++++-
 SignalServiceKit/src/Util/FeatureFlags.swift              | 8 +++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/Signal/src/UserInterface/Notifications/UserNotificationsAdaptee.swift b/Signal/src/UserInterface/Notifications/UserNotificationsAdaptee.swift
index 50aab570fb..9bccb2ace0 100644
--- a/Signal/src/UserInterface/Notifications/UserNotificationsAdaptee.swift
+++ b/Signal/src/UserInterface/Notifications/UserNotificationsAdaptee.swift
@@ -180,9 +180,13 @@ extension UserNotificationPresenterAdaptee: NotificationPresenterAdaptee {
 
     func clearAllNotifications() {
         AssertIsOnMainThread()
+
         notificationCenter.removeAllPendingNotificationRequests()
         notificationCenter.removeAllDeliveredNotifications()
-        LegacyNotificationPresenterAdaptee.clearExistingNotifications()
+
+        if !FeatureFlags.onlyModernNotificationClearance {
+            LegacyNotificationPresenterAdaptee.clearExistingNotifications()
+        }
     }
 
     func shouldPresentNotification(category: AppNotificationCategory, userInfo: [AnyHashable: Any]) -> Bool {
diff --git a/SignalServiceKit/src/Util/FeatureFlags.swift b/SignalServiceKit/src/Util/FeatureFlags.swift
index 724d5e19bb..d985560dd6 100644
--- a/SignalServiceKit/src/Util/FeatureFlags.swift
+++ b/SignalServiceKit/src/Util/FeatureFlags.swift
@@ -72,7 +72,13 @@ public class FeatureFlags: NSObject {
     @objc
     public static let strictSyncTranscriptTimestamps = false
 
+    private static let isPrivateBeta = false
+
     // Don't enable this flag in production.
     @objc
-    public static let strictYDBExtensions = false
+    public static let strictYDBExtensions = isPrivateBeta
+
+    // Don't enable this flag in production.
+    @objc
+    public static let onlyModernNotificationClearance = isPrivateBeta
 }