Custom alert: show menu when long press moves onto menu button

Tusker/Screens/Utilities/CustomAlertController.swift

@@ -159,6 +159,7 @@ class CustomAlertActionsView: UIControl {
     }()
     #endif
     private var currentSelectedActionIndex: Int?
+    private var showPressedMenuWorkItem: DispatchWorkItem?
     
     init(config: CustomAlertController.Configuration, dismiss: @escaping () -> Void) {
         self.dismiss = dismiss
@@ -327,11 +328,34 @@ class CustomAlertActionsView: UIControl {
                     generator.selectionChanged()
                 }
                 #endif
+                
+                if let showPressedMenuWorkItem {
+                    showPressedMenuWorkItem.cancel()
+                    self.showPressedMenuWorkItem = nil
+                }
             }
             
             currentSelectedActionIndex = selectedButton?.offset
             selectedButton?.element.backgroundColor = .secondarySystemFill
             
+            if let currentSelectedActionIndex,
+               case .menu(_) = reorderedActions[currentSelectedActionIndex].style,
+               case let button = actionButtons[currentSelectedActionIndex],
+               let interaction = button.contextMenuInteraction,
+               showPressedMenuWorkItem == nil {
+                showPressedMenuWorkItem = DispatchWorkItem {
+                    if #available(iOS 17.4, *) {
+                        button.performPrimaryAction()
+                    } else {
+                        let selector = NSSelectorFromString(["Location:", "At", "Menu", "present", "_"].reversed().joined())
+                        if interaction.responds(to: selector) {
+                            interaction.perform(selector, with: recognizer.location(in: button))
+                        }
+                    }
+                }
+                DispatchQueue.main.asyncAfter(deadline: .now() + .milliseconds(250), execute: showPressedMenuWorkItem!)
+            }
+            
             #if !os(visionOS)
             generator.prepare()
             #endif