Show an alert when notifications permission is denied

NearDrop.xcodeproj/project.pbxproj

@@ -386,7 +386,7 @@
 				CODE_SIGN_ENTITLEMENTS = NearDrop/NearDrop.entitlements;
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
-				CURRENT_PROJECT_VERSION = 1;
+				CURRENT_PROJECT_VERSION = 2;
 				GENERATE_INFOPLIST_FILE = YES;
 				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.utilities";
 				INFOPLIST_KEY_LSUIElement = YES;
@@ -398,7 +398,7 @@
 					"@executable_path/../Frameworks",
 				);
 				MACOSX_DEPLOYMENT_TARGET = 11.0;
-				MARKETING_VERSION = 1.0;
+				MARKETING_VERSION = 1.1;
 				PRODUCT_BUNDLE_IDENTIFIER = me.grishka.NearDrop;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_EMIT_LOC_STRINGS = YES;
@@ -417,7 +417,7 @@
 				CODE_SIGN_ENTITLEMENTS = NearDrop/NearDrop.entitlements;
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
-				CURRENT_PROJECT_VERSION = 1;
+				CURRENT_PROJECT_VERSION = 2;
 				GENERATE_INFOPLIST_FILE = YES;
 				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.utilities";
 				INFOPLIST_KEY_LSUIElement = YES;
@@ -429,7 +429,7 @@
 					"@executable_path/../Frameworks",
 				);
 				MACOSX_DEPLOYMENT_TARGET = 11.0;
-				MARKETING_VERSION = 1.0;
+				MARKETING_VERSION = 1.1;
 				PRODUCT_BUNDLE_IDENTIFIER = me.grishka.NearDrop;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_EMIT_LOC_STRINGS = YES;

NearDrop/AppDelegate.swift

@@ -26,6 +26,9 @@ class AppDelegate: NSObject, NSApplicationDelegate{
 		
 		let nc=UNUserNotificationCenter.current()
 		nc.requestAuthorization(options: [.alert, .sound]) { granted, err in
+			if !granted{
+				self.showNotificationsDeniedAlert()
+			}
 		}
 		let incomingTransfersCategory=NDNotificationCenterHackery.hackedNotificationCategory()
 		let errorsCategory=UNNotificationCategory(identifier: "ERRORS", actions: [], intentIdentifiers: [])
@@ -40,5 +43,20 @@ class AppDelegate: NSObject, NSApplicationDelegate{
     func applicationSupportsSecureRestorableState(_ app: NSApplication) -> Bool {
         return true
     }
+	
+	func showNotificationsDeniedAlert(){
+		let alert=NSAlert()
+		alert.alertStyle = .critical
+		alert.messageText=NSLocalizedString("NotificationsDenied.Title", value: "Notification Permission Required", comment: "")
+		alert.informativeText=NSLocalizedString("NotificationsDenied.Message", value: "NearDrop needs to be able to display notifications for incoming file transfers. Please allow notifications in System Settings.", comment: "")
+		alert.addButton(withTitle: NSLocalizedString("NotificationsDenied.OpenSettings", value: "Open settings", comment: ""))
+		alert.addButton(withTitle: NSLocalizedString("Quit", value: "Quit NearDrop", comment: ""))
+		let result=alert.runModal()
+		if result==NSApplication.ModalResponse.alertFirstButtonReturn{
+			NSWorkspace.shared.open(URL(string: "x-apple.systempreferences:com.apple.preference.notifications")!)
+		}else if result==NSApplication.ModalResponse.alertSecondButtonReturn{
+			NSApplication.shared.terminate(nil)
+		}
+	}
 }