temporarily disable pencil in-app-purchase for iOS14 and lower OS

VoidLink/Input/PressureCurve.swift

@@ -658,6 +658,15 @@ class PressureCurveViewController: UIViewController {
         if interruption != .learnMore {
             resetTapped()
         }
+        if interruption == .lowOSVersion {
+            AlertControllerUtil.showAlert(
+                in: self,
+                title: "",
+                message: SwiftLocalizationHelper.localizedString(forKey:"PencilProPackLowOSVersionTip"),
+                withCancel: false,
+                buttonTitle: SwiftLocalizationHelper.localizedString(forKey: "OK"),
+                countdown: 0)
+        }
     }
     
     @objc private func pressureRangeTest() {
@@ -715,7 +724,6 @@ class PressureCurveViewController: UIViewController {
     }
 
     @objc private func saveTapped() {
-        if #available(iOS 15.0, *) {
         IAPManager.checkPurchaseInfo(.PencilProPack) { info in
             if info.valid {
                 self.persistCurve()
@@ -725,10 +733,6 @@ class PressureCurveViewController: UIViewController {
             }
         }
     }
-        else {
-            return
-        }
-    }
 
     @objc private func exitTapped() {
         self.dismiss(animated: true)

VoidLink/Localization/Localizable.xcstrings

@@ -5056,6 +5056,35 @@
     "PencilProPackDescription" : {
       "extractionState" : "manual"
     },
+    "PencilProPackLowOSVersionTip" : {
+      "extractionState" : "manual",
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Pencil Pro Pack is coming soon on iOS 12–14."
+          }
+        },
+        "zh-Hans" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Pencil Pro Pack 即将支持 iOS 12–14。"
+          }
+        },
+        "zh-Hant" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Pencil Pro Pack 即將支援 iOS 12–14。"
+          }
+        },
+        "zh-HK" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Pencil Pro Pack 即將支援 iOS 12–14。"
+          }
+        }
+      }
+    },
     "PencilProPackURL" : {
       "extractionState" : "manual",
       "localizations" : {

VoidLink/Utility/IAPManager.swift

@@ -19,6 +19,7 @@ import StoreKit
     case unlockNow
     case restore
     case learnMore
+    case lowOSVersion
 }
 
 @objc public class PurchaseInfo: NSObject {
@@ -221,21 +222,21 @@ import StoreKit
                     await transaction.finish()
                     NotificationCenter.default.post(name: product.purchaseSucceededNotification(), object: nil)
                 case .unverified(_, let err):
-                    NotificationCenter.default.post(name: product.purchaseAbortedNotification(), object: PurchaseInterruption.unlockNow)
+                    NotificationCenter.default.post(name: product.purchaseAbortedNotification(), object: PurchaseInterruption.unlockNow, userInfo:["interruption": PurchaseInterruption.unlockNow.rawValue])
                     await MainActor.run {
                         self.delegate?.iapManagerDidFailWithError(err)
                     }
                 }
             case .userCancelled:
-                NotificationCenter.default.post(name: product.purchaseAbortedNotification(), object: PurchaseInterruption.unlockNow)
+                NotificationCenter.default.post(name: product.purchaseAbortedNotification(), object: PurchaseInterruption.unlockNow, userInfo:["interruption": PurchaseInterruption.unlockNow.rawValue])
                 break
             default:
-                NotificationCenter.default.post(name: product.purchaseAbortedNotification(), object: PurchaseInterruption.unlockNow)
+                NotificationCenter.default.post(name: product.purchaseAbortedNotification(), object: PurchaseInterruption.unlockNow, userInfo:["interruption": PurchaseInterruption.unlockNow.rawValue])
                 break
             }
         } catch {
             await MainActor.run {
-                NotificationCenter.default.post(name: product.purchaseAbortedNotification(), object: PurchaseInterruption.unlockNow)
+                NotificationCenter.default.post(name: product.purchaseAbortedNotification(), object: PurchaseInterruption.unlockNow, userInfo:["interruption": PurchaseInterruption.unlockNow.rawValue])
                 self.delegate?.iapManagerDidFailWithError(error)
             }
         }
@@ -301,16 +302,15 @@ import StoreKit
     }
     
     // MARK: Utils
-    @available(iOS 15.0, *)
     @objc static public func checkPurchaseInfo(
         _ product: AddOnProduct,
         completion: @escaping (PurchaseInfo) -> Void
     ) {
         let productID = product.productId()
+        if #available(iOS 15.0, *) {
             Task {
                 var status: PurchaseStatus = .notPurchased
                 var expiration: Date? = nil
-
                 for await verificationResult in Transaction.currentEntitlements {
                     if case .verified(let transaction) = verificationResult,
                        transaction.productID == productID {
@@ -325,7 +325,6 @@ import StoreKit
                         break
                     }
                 }
-
                 let info = PurchaseInfo(status: status, expirationDate: expiration as NSDate?)
                 
                 await MainActor.run {
@@ -333,6 +332,10 @@ import StoreKit
                 }
             }
         }
+        else {
+            NotificationCenter.default.post(name: product.purchaseAbortedNotification(), object: PurchaseInterruption.lowOSVersion, userInfo:["interruption": PurchaseInterruption.lowOSVersion.rawValue])
+        }
+    }
     
     @available(iOS 15.0, *)
     static public func checkPurchaseInfo(
@@ -365,7 +368,7 @@ import StoreKit
                             // Fallback on earlier versions
                         }
                     } catch {
-                        NotificationCenter.default.post(name: product.purchaseAbortedNotification(), object: PurchaseInterruption.restore)
+                        NotificationCenter.default.post(name: product.purchaseAbortedNotification(), object: PurchaseInterruption.restore, userInfo:["interruption": PurchaseInterruption.restore.rawValue])
                         print("Restore failed: \(error)")
                     }
                 }
@@ -375,7 +378,7 @@ import StoreKit
         }
         
         let learnMoreAction = UIAlertAction(title: SwiftLocalizationHelper.localizedString(forKey: "Learn More"), style: .default) { _ in
-            NotificationCenter.default.post(name: product.purchaseAbortedNotification(), object: PurchaseInterruption.learnMore)
+            NotificationCenter.default.post(name: product.purchaseAbortedNotification(), object: PurchaseInterruption.learnMore, userInfo:["interruption": PurchaseInterruption.learnMore.rawValue])
             if let url = URL(string: product.productURL()) {
                 UIApplication.shared.open(url, options: [:], completionHandler: nil)
             }

VoidLink/ViewControllers/SettingsViewController.m

@@ -475,7 +475,7 @@ BOOL isCustomResolution(int resolutionSelected) {
                                                  name:@"OscLayoutCloseNotification"
                                                object:nil];
     [[NSNotificationCenter defaultCenter] addObserver:self
-                                             selector:@selector(pencilProPurchaseAborted)
+                                             selector:@selector(pencilProPurchaseAborted:)
                                                  name:@"PencilProPurchaseAbortedNotification"
                                                object:nil];
 
@@ -3381,23 +3381,39 @@ BOOL isCustomResolution(int resolutionSelected) {
     
     if(settingsViewJustExpanded) return;
     
-    if (@available(iOS 15.0, *)) {
     if(sender.selectedSegmentIndex != ManualTick) return;
     [IAPManager checkPurchaseInfo:AddOnProductPencilProPack completion:^(PurchaseInfo* info) {
         if(!info.valid){
             [IAPManager inAppPurchaseActionWithViewController:self product:AddOnProductPencilProPack];
         }
     }];
-    }
 }
 
-- (void)pencilProPurchaseAborted{
+- (void)pencilProPurchaseAborted:(NSNotification *)notification{
     dispatch_async(dispatch_get_main_queue(), ^{
         self.pencilTickSelector.selectedSegmentIndex = PencilTickDisabled;
         [self pencilTickModeChanged:self.pencilTickSelector];
+        [self.pressureCurveSwitch setOn:false];
         [self.doubleTapShortcutSwitch setOn:false];
         [self.pencilPausesNativeTouchSwitch setOn:false];
         [self.disablePencilSlideGestureSwitch setOn:false];
+        
+        
+        NSNumber *value = notification.userInfo[@"interruption"];
+        if (!value) return;
+
+        PurchaseInterruption interruption = value.intValue;
+
+        if(interruption == PurchaseInterruptionLowOSVersion){
+            [AlertControllerUtil showAlertIn:self
+                                       title:@""
+                                     message:[LocalizationHelper localizedStringForKey:@"PencilProPackLowOSVersionTip"]
+                                  withCancel:NO
+                                 buttonTitle:[LocalizationHelper localizedStringForKey:@"OK"]
+                                   countdown:0
+                                      action:nil
+                                  completion:nil];
+        }
     });
 }
 
@@ -3416,7 +3432,6 @@ BOOL isCustomResolution(int resolutionSelected) {
 
 - (void)doubleTapShortcutSwitchFlipped:(UISwitch* )sender{
     if(sender.isOn && !settingsViewJustLoaded){
-        if (@available(iOS 15.0, *)) {
         [IAPManager checkPurchaseInfo:AddOnProductPencilProPack completion:^(PurchaseInfo* info) {
             if(info.valid) [PencilHandler enterDoubleTapShortcutsIn:self];
             else {
@@ -3424,12 +3439,10 @@ BOOL isCustomResolution(int resolutionSelected) {
             }
         }];
     }
-    }
 }
 
 - (void)disablePencilSlideGestureSwitchFlipped:(UISwitch* )sender{
     if(sender.isOn && !settingsViewJustLoaded){
-        if (@available(iOS 15.0, *)) {
         [IAPManager checkPurchaseInfo:AddOnProductPencilProPack completion:^(PurchaseInfo* info) {
             if(info.valid) nil;
             else {
@@ -3437,17 +3450,14 @@ BOOL isCustomResolution(int resolutionSelected) {
             }
         }];
     }
-    }
 }
 
 - (void)pencilPausesNativeTouchSwitchFlipped:(UISwitch* )sender{
     if(sender.isOn && !settingsViewJustLoaded){
-        if (@available(iOS 15.0, *)) {
         [IAPManager checkPurchaseInfo:AddOnProductPencilProPack completion:^(PurchaseInfo* info) {
             if(!info.valid) [IAPManager inAppPurchaseActionWithViewController:self product:AddOnProductPencilProPack];
         }];
     }
-    }
 }
 
 - (void)loadPencilSettings:(TemporarySettings*) tempSettings{