display OK action if no actions are added to the alert

Author: mikhailChelbaev

Examples/DemosApp/DemosApp/ComponentsPreview/PreviewPages/AlertPreview.swift

@@ -44,10 +44,6 @@ struct AlertPreview: View {
             get: { return self.model.primaryButton != nil },
             set: { newValue in
               self.model.primaryButton = newValue ? Self.initialPrimaryButton : nil
-
-              if !self.hasButtons {
-                self.model.closesOnOverlayTap = true
-              }
             }
           ))
           if self.model.primaryButton != nil {
@@ -64,10 +60,6 @@ struct AlertPreview: View {
             get: { return self.model.secondaryButton != nil },
             set: { newValue in
               self.model.secondaryButton = newValue ? Self.initialSecondaryButton : nil
-
-              if !self.hasButtons {
-                self.model.closesOnOverlayTap = true
-              }
             }
           ))
           if self.model.secondaryButton != nil {
@@ -88,7 +80,6 @@ struct AlertPreview: View {
             Text("Danger Background").tag(ComponentColor.danger.background)
           }
           Toggle("Closes On Overlay Tap", isOn: self.$model.closesOnOverlayTap)
-            .disabled(!self.hasButtons)
           Picker("Content Paddings", selection: self.$model.contentPaddings) {
             Text("12px").tag(Paddings(padding: 12))
             Text("16px").tag(Paddings(padding: 16))
@@ -167,9 +158,6 @@ Enim habitant laoreet inceptos scelerisque senectus, tellus molestie ut. Eros ri
       set: { self.model.secondaryButton = $0 }
     )
   }
-  var hasButtons: Bool {
-    return self.model.primaryButton != nil || self.model.secondaryButton != nil
-  }
 }
 
 #Preview {

Sources/ComponentsKit/Components/Alert/Models/AlertVM.swift

@@ -86,4 +86,10 @@ extension AlertVM {
 
 extension AlertVM {
   static let buttonsSpacing: CGFloat = 12
+
+  static let defaultButtonVM = ButtonVM {
+    $0.title = "OK"
+    $0.color = .primary
+    $0.style = .filled
+  }
 }

Sources/ComponentsKit/Components/Alert/UKAlertController.swift

@@ -2,6 +2,8 @@ import UIKit
 
 /// A controller that presents an alert with a title, message, and up to two action buttons.
 ///
+/// All actions in an alert dismiss the alert after the action runs. If no actions are present, a standard “OK” action is included.
+///
 /// - Example:
 /// ```swift
 /// let alert = UKAlertController(
@@ -87,15 +89,16 @@ public class UKAlertController: UKCenterModalController {
     } else {
       self.body = self.subtitleLabel
     }
-    if self.alertVM.primaryButton.isNotNil || self.alertVM.secondaryButton.isNotNil {
-      self.footer = self.buttonsStackView
-    }
+    self.footer = self.buttonsStackView
 
-    if self.alertVM.primaryButton.isNotNil {
+    switch (self.alertVM.primaryButton.isNotNil, self.alertVM.secondaryButton.isNotNil) {
+    case (true, true):
       self.buttonsStackView.addArrangedSubview(self.primaryButton)
-    }
-    if self.alertVM.secondaryButton.isNotNil {
       self.buttonsStackView.addArrangedSubview(self.secondaryButton)
+    case (false, true):
+      self.buttonsStackView.addArrangedSubview(self.secondaryButton)
+    case (_, false):
+      self.buttonsStackView.addArrangedSubview(self.primaryButton)
     }
 
     self.primaryButton.action = { [weak self] in
@@ -125,6 +128,7 @@ public class UKAlertController: UKCenterModalController {
     if let primaryButtonVM = self.alertVM.primaryButtonVM {
       self.primaryButton.model = primaryButtonVM
     }
+    self.primaryButton.model = self.alertVM.primaryButtonVM ?? AlertVM.defaultButtonVM
     if let secondaryButtonVM = self.alertVM.secondaryButtonVM {
       self.secondaryButton.model = secondaryButtonVM
     }