Add showAppleAccount

src/Helper/HelperProtocol.swift

@@ -4,6 +4,12 @@ let helperServiceName = "org.pqrs.TrueWidget.Helper"
 
 @objc
 protocol HelperProtocol {
+  //
+  // AppleAccount
+  //
+
+  func appleAccount(reply: @escaping (String) -> Void)
+
   //
   // BundleVersions
   //

src/Helper/main.swift

@@ -21,6 +21,17 @@ class HelperService: NSObject, NSXPCListenerDelegate, HelperProtocol {
     return true
   }
 
+  //
+  // AppleAccount
+  //
+
+  func appleAccount(reply: @escaping (String) -> Void) {
+    let account =
+      (UserDefaults.standard.persistentDomain(forName: "MobileMeAccounts")?["Accounts"]
+      as? [[String: Any]])?.first?["AccountID"] as? String ?? ""
+    reply(account)
+  }
+
   //
   // BundleVersions
   //

src/TrueWidget/swift/UserSettings.swift

@@ -72,6 +72,7 @@ final class UserSettings: ObservableObject {
   @AppStorage("showHostName") var showHostName: Bool = true
   @AppStorage("showRootVolumeName") var showRootVolumeName: Bool = false
   @AppStorage("showUserName") var showUserName: Bool = false
+  @AppStorage("showAppleAccount") var showAppleAccount: Bool = false
 
   //
   // Xcode

src/TrueWidget/swift/Views/Main/MainOperatingSystemView.swift

@@ -36,6 +36,16 @@ struct MainOperatingSystemView: View {
         if userSettings.showUserName {
           Text(operatingSystem.userName)
         }
+
+        if userSettings.showAppleAccount {
+          // The spacing between the icon and text is too wide when using a Label, so managing it manually with an HStack.
+          HStack(alignment: .center, spacing: 4) {
+            Image(systemName: "apple.logo")
+            Text(
+              operatingSystem.appleAccount.isEmpty ? "---" : operatingSystem.appleAccount
+            )
+          }
+        }
       }
       .frame(maxWidth: .infinity, alignment: .trailing)
     }

src/TrueWidget/swift/Views/Settings/SettingsOperatingSystemView.swift

@@ -48,6 +48,11 @@ struct SettingsOperatingSystemView: View {
               Text("Show user name")
             }
             .switchToggleStyle()
+
+            Toggle(isOn: $userSettings.showAppleAccount) {
+              Text("Show Apple Account")
+            }
+            .switchToggleStyle()
           }
           .padding()
           .frame(maxWidth: .infinity, alignment: .leading)

src/TrueWidget/swift/WidgetSource/OperatingSystem.swift

@@ -10,6 +10,7 @@ extension WidgetSource {
     @Published public var hostName = ""
     @Published public var rootVolumeName = ""
     @Published public var userName = ""
+    @Published public var appleAccount = ""
 
     let timer: AsyncTimerSequence<ContinuousClock>
     var timerTask: Task<Void, Never>?
@@ -59,25 +60,34 @@ extension WidgetSource {
       return ""
     }
 
+    @MainActor
     private func update() {
-      if !userSettings.showHostName {
-        return
-      }
-
-      // `ProcessInfo.processInfo.hostName` is not reflected the host name changes after the application is launched.
-      // So, we have to use `gethostname`.`
-      let length = 128
-      var buffer = [CChar](repeating: 0, count: length)
-      let error = gethostname(&buffer, length)
-      if error == 0 {
-        if let name = String(utf8String: buffer) {
-          var h = name
-          if let index = name.firstIndex(of: ".") {
-            h = String(name[...index].dropLast())
+      if userSettings.showHostName {
+        // `ProcessInfo.processInfo.hostName` is not reflected the host name changes after the application is launched.
+        // So, we have to use `gethostname`.`
+        let length = 128
+        var buffer = [CChar](repeating: 0, count: length)
+        let error = gethostname(&buffer, length)
+        if error == 0 {
+          if let name = String(utf8String: buffer) {
+            var h = name
+            if let index = name.firstIndex(of: ".") {
+              h = String(name[...index].dropLast())
+            }
+
+            if hostName != h {
+              hostName = h
+            }
           }
+        }
+      }
 
-          if hostName != h {
-            hostName = h
+      if userSettings.showAppleAccount {
+        HelperClient.shared.proxy?.appleAccount { account in
+          Task { @MainActor in
+            if self.appleAccount != account {
+              self.appleAccount = account
+            }
           }
         }
       }