visionOS: Workaround for gallery not working at all

Closes #503

Packages/GalleryVC/Sources/GalleryVC/GalleryViewController.swift

@@ -152,14 +152,21 @@ extension GalleryViewController: GalleryItemViewControllerDelegate {
 
 extension GalleryViewController: UIViewControllerTransitioningDelegate {
     public func animationController(forPresented presented: UIViewController, presenting: UIViewController, source: UIViewController) -> UIViewControllerAnimatedTransitioning? {
+        #if os(visionOS)
+        return nil
+        #else
         if let sourceView = galleryDataSource.galleryContentTransitionSourceView(forItemAt: initialItemIndex) {
             return GalleryPresentationAnimationController(sourceView: sourceView)
         } else {
             return nil
         }
+        #endif
     }
     
     public func animationController(forDismissed dismissed: UIViewController) -> UIViewControllerAnimatedTransitioning? {
+        #if os(visionOS)
+        return nil
+        #else
         if let sourceView = galleryDataSource.galleryContentTransitionSourceView(forItemAt: currentItemViewController.itemIndex) {
             let translation: CGPoint?
             let velocity: CGPoint?
@@ -175,5 +182,6 @@ extension GalleryViewController: UIViewControllerTransitioningDelegate {
         } else {
             return nil
         }
+        #endif
     }
 }

Tusker/Screens/Fast Account Switcher/FastAccountSwitcherViewController.swift

@@ -204,14 +204,19 @@ class FastAccountSwitcherViewController: UIViewController {
     @objc private func handleLongPress(_ recognizer: UIGestureRecognizer) {
         switch recognizer.state {
         case .began:
+            show()
+            
             #if !os(visionOS)
-            UIImpactFeedbackGenerator(style: .heavy).impactOccurred()
-            selectionChangedFeedbackGenerator = UISelectionFeedbackGenerator()
+            if #available(iOS 17.5, *) {
+                UIImpactFeedbackGenerator(style: .heavy, view: view).impactOccurred(at: CGPoint(x: view.bounds.midX, y: view.bounds.midY))
+                selectionChangedFeedbackGenerator = UISelectionFeedbackGenerator(view: view)
+            } else {
+                UIImpactFeedbackGenerator(style: .heavy).impactOccurred()
+                selectionChangedFeedbackGenerator = UISelectionFeedbackGenerator()
+            }
             selectionChangedFeedbackGenerator?.prepare()
             #endif
             
-            show()
-            
         case .changed:
             let location = recognizer.location(in: view)
             
@@ -260,7 +265,11 @@ class FastAccountSwitcherViewController: UIViewController {
             
             #if !os(visionOS)
             if hapticFeedback {
-                selectionChangedFeedbackGenerator?.selectionChanged()
+                if #available(iOS 17.5, *) {
+                    selectionChangedFeedbackGenerator?.selectionChanged(at: location)
+                } else {
+                    selectionChangedFeedbackGenerator?.selectionChanged()
+                }
                 selectionChangedFeedbackGenerator?.prepare()
             }
             #endif

Tusker/Screens/Gallery/VideoControlsViewController.swift

@@ -270,8 +270,13 @@ private class VideoScrubbingControl: UIControl {
     }
     
     override func beginTracking(_ touch: UITouch, with event: UIEvent?) -> Bool {
-        touchStartLocation = touch.location(in: self)
-        scrubbingStartFraction = fractionComplete
+        if touch.type == .pencil || touch.type == .indirectPointer {
+            touchStartLocation = .zero
+            scrubbingStartFraction = 0
+        } else {
+            touchStartLocation = touch.location(in: self)
+            scrubbingStartFraction = fractionComplete
+        }
         
         animator = UIViewPropertyAnimator(duration: 0.1, curve: .linear)
         animator!.addAnimations {
@@ -282,17 +287,28 @@ private class VideoScrubbingControl: UIControl {
         sendActions(for: .editingDidBegin)
         
         #if !os(visionOS)
-        feedbackGenerator = UIImpactFeedbackGenerator(style: .light)
+        if #available(iOS 17.5, *) {
+            feedbackGenerator = UIImpactFeedbackGenerator(style: .light, view: self)
+        } else {
+            feedbackGenerator = UIImpactFeedbackGenerator(style: .light)
+        }
         feedbackGenerator!.prepare()
         #endif
         
+        updateScrubbing(for: touch)
+
         return true
     }
     
     override func continueTracking(_ touch: UITouch, with event: UIEvent?) -> Bool {
+        updateScrubbing(for: touch)
+        return true
+    }
+    
+    private func updateScrubbing(for touch: UITouch) {
         guard let touchStartLocation,
               let scrubbingStartFraction else {
-            return false
+            return
         }
         let location = touch.location(in: self)
         let translation = CGPoint(x: location.x - touchStartLocation.x, y: location.y - touchStartLocation.y)
@@ -301,7 +317,11 @@ private class VideoScrubbingControl: UIControl {
         let newFractionComplete = max(0, min(1, unclampedFractionComplete))
         #if !os(visionOS)
         if newFractionComplete != fractionComplete && (newFractionComplete == 0 || newFractionComplete == 1) {
-            feedbackGenerator!.impactOccurred(intensity: 0.5)
+            if #available(iOS 17.5, *) {
+                feedbackGenerator!.impactOccurred(intensity: 0.5, at: location)
+            } else {
+                feedbackGenerator!.impactOccurred(intensity: 0.5)
+            }
         }
         #endif
         fractionComplete = newFractionComplete
@@ -318,8 +338,6 @@ private class VideoScrubbingControl: UIControl {
             transform = CGAffineTransform(scaleX: 1 + stretchAmount / bounds.width, y: 1 + 0.5 * (1 - stretchFactor))
                 .translatedBy(x: sign(unclampedFractionComplete) * stretchAmount / 2, y: 0)
         }
-        
-        return true
     }
     
     override func endTracking(_ touch: UITouch?, with event: UIEvent?) {

Tusker/Screens/Utilities/CustomAlertController.swift

@@ -150,9 +150,16 @@ class CustomAlertActionsView: UIControl {
     private var separatorSizeConstraints: [NSLayoutConstraint] = []
     
     #if !os(visionOS)
-    private let generator = UISelectionFeedbackGenerator()
+    private lazy var generator: UISelectionFeedbackGenerator = {
+        if #available(iOS 17.5, *) {
+            UISelectionFeedbackGenerator(view: self)
+        } else {
+            UISelectionFeedbackGenerator()
+        }
+    }()
     #endif
     private var currentSelectedActionIndex: Int?
+    private var showPressedMenuWorkItem: DispatchWorkItem?
     
     init(config: CustomAlertController.Configuration, dismiss: @escaping () -> Void) {
         self.dismiss = dismiss
@@ -313,13 +320,42 @@ class CustomAlertActionsView: UIControl {
                     actionButtons[currentSelectedActionIndex].backgroundColor = nil
                 }
                 #if !os(visionOS)
-                generator.selectionChanged()
+                if #available(iOS 17.5, *) {
+                    let view = selectedButton!.element
+                    let location = convert(CGPoint(x: view.bounds.midX, y: view.bounds.midY), from: view)
+                    generator.selectionChanged(at: location)
+                } else {
+                    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

Tusker/Views/Poll/PollOptionView.swift

@@ -14,6 +14,7 @@ class PollOptionView: UIView {
     private static let minHeight: CGFloat = 35
     private static let cornerRadius = 0.1 * minHeight
     private static let unselectedBackgroundColor = UIColor(white: 0.5, alpha: 0.25)
+    private static let hoveredBackgroundColor = UIColor(white: 0.35, alpha: 0.25)
     
     private(set) var label: EmojiLabel!
     @Lazy private var checkbox: PollOptionCheckboxView = PollOptionCheckboxView().configure {
@@ -33,6 +34,12 @@ class PollOptionView: UIView {
     private var labelLeadingToSelfConstraint: NSLayoutConstraint!
     private var fillViewWidthConstraint: NSLayoutConstraint?
     
+    var hovered: Bool = false {
+        didSet {
+            backgroundColor = hovered ? PollOptionView.hoveredBackgroundColor : PollOptionView.unselectedBackgroundColor
+        }
+    }
+    
     init() {
         super.init(frame: .zero)
         

Tusker/Views/Poll/PollOptionsView.swift

@@ -24,12 +24,19 @@ class PollOptionsView: UIControl {
     private var poll: Poll!
     private var animator: UIViewPropertyAnimator!
     private var currentSelectedOptionIndex: Int?
+    private var currentHoveredOptionIndex: Int?
     
-    private let animationDuration: TimeInterval = 0.1
-    private let scaledTransform = CGAffineTransform(scaleX: 0.95, y: 0.95)
+    static let animationDuration: TimeInterval = 0.1
+    static let scaledTransform = CGAffineTransform(scaleX: 0.95, y: 0.95)
     
     #if !os(visionOS)
-    private let generator = UISelectionFeedbackGenerator()
+    private lazy var generator: UISelectionFeedbackGenerator = {
+        if #available(iOS 17.5, *) {
+            UISelectionFeedbackGenerator(view: self)
+        } else {
+            UISelectionFeedbackGenerator()
+        }
+    }()
     #endif
     
     override var isEnabled: Bool {
@@ -59,6 +66,8 @@ class PollOptionsView: UIControl {
             stack.topAnchor.constraint(equalTo: topAnchor),
             stack.bottomAnchor.constraint(equalTo: bottomAnchor),
         ])
+        
+        addGestureRecognizer(UIHoverGestureRecognizer(target: self, action: #selector(hoverRecognized)))
     }
     
     required init?(coder: NSCoder) {
@@ -121,6 +130,20 @@ class PollOptionsView: UIControl {
         }
     }
     
+    private func optionView(at point: CGPoint) -> (PollOptionView, Int)? {
+        for (index, view) in options.enumerated() {
+            // don't use view.frame because it changes when a transform is applied
+            var frame = CGRect(x: 0, y: view.center.y - view.bounds.height / 2, width: view.bounds.width, height: view.bounds.height)
+            if index != options.count - 1 {
+                frame = frame.inset(by: UIEdgeInsets(top: 0, left: 0, bottom: -stack.spacing, right: 0))
+            }
+            if frame.contains(point) {
+                return (view, index)
+            }
+        }
+        return nil
+    }
+    
     // MARK: - UIControl
     
     override func beginTracking(_ touch: UITouch, with event: UIEvent?) -> Bool {
@@ -132,13 +155,21 @@ class PollOptionsView: UIControl {
             if view.point(inside: touch.location(in: view), with: event) {
                 currentSelectedOptionIndex = index
                 
-                animator = UIViewPropertyAnimator(duration: animationDuration, curve: .easeInOut) {
-                    view.transform = self.scaledTransform
+                if animator?.isRunning == true {
+                    animator.stopAnimation(true)
+                }
+                animator = UIViewPropertyAnimator(duration: Self.animationDuration, curve: .easeInOut) {
+                    view.transform = Self.scaledTransform
+                    view.hovered = true
                 }
                 animator.startAnimation()
                 
                 #if !os(visionOS)
-                generator.selectionChanged()
+                if #available(iOS 17.5, *) {
+                    generator.selectionChanged(at: view.center)
+                } else {
+                    generator.selectionChanged()
+                }
                 generator.prepare()
                 #endif
                 
@@ -151,30 +182,31 @@ class PollOptionsView: UIControl {
     
     override func continueTracking(_ touch: UITouch, with event: UIEvent?) -> Bool {
         let location = touch.location(in: self)
-        var newIndex: Int? = nil
-        for (index, view) in options.enumerated() {
-            var frame = view.frame
-            if index != options.count - 1 {
-                frame = frame.inset(by: UIEdgeInsets(top: 0, left: 0, bottom: -stack.spacing, right: 0))
-            }
-            if frame.contains(location) {
-                newIndex = index
-                break
-            }
-        }
+        let newIndexAndOption = optionView(at: location)
+        let newIndex = newIndexAndOption?.1
+        let option = newIndexAndOption?.0
 
         if newIndex != currentSelectedOptionIndex {
             currentSelectedOptionIndex = newIndex
             
-            UIView.animate(withDuration: animationDuration, delay: 0, options: .curveEaseInOut) {
+            if animator.isRunning {
+                animator.stopAnimation(true)
+            }
+            animator = UIViewPropertyAnimator(duration: Self.animationDuration, curve: .easeInOut) {
                 for (index, view) in self.options.enumerated() {
-                    view.transform = index == newIndex ? self.scaledTransform : .identity
+                    view.transform = index == newIndex ? Self.scaledTransform : .identity
+                    view.hovered = index == newIndex
                 }
             }
+            animator.startAnimation()
             
             #if !os(visionOS)
-            if newIndex != nil {
-                generator.selectionChanged()
+            if let option {
+                if #available(iOS 17.5, *) {
+                    generator.selectionChanged(at: option.center)
+                } else {
+                    generator.selectionChanged()
+                }
                 generator.prepare()
             }
             #endif
@@ -189,14 +221,15 @@ class PollOptionsView: UIControl {
         func selectOption() {
             guard let index = currentSelectedOptionIndex else { return }
             let option = options[index]
-            animator = UIViewPropertyAnimator(duration: animationDuration, curve: .easeInOut) {
+            animator = UIViewPropertyAnimator(duration: Self.animationDuration, curve: .easeInOut) {
                 option.transform = .identity
+                option.hovered = false
                 self.selectOption(option)
             }
             animator.startAnimation()
         }
         
-        if animator.isRunning {
+        if animator?.isRunning == true {
             animator.addCompletion { (_) in
                 selectOption()
             }
@@ -207,12 +240,52 @@ class PollOptionsView: UIControl {
     
     override func cancelTracking(with event: UIEvent?) {
         super.cancelTracking(with: event)
-        UIView.animate(withDuration: animationDuration, delay: 0, options: .curveEaseInOut) {
+        if animator?.isRunning == true {
+            animator.stopAnimation(true)
+        }
+        animator = UIViewPropertyAnimator(duration: Self.animationDuration, curve: .easeInOut) {
             for view in self.options {
                 view.transform = .identity
+                view.hovered = false
             }
         }
+        animator.startAnimation()
+    }
     
+    @objc private func hoverRecognized(_ recognizer: UIHoverGestureRecognizer) {
+        guard let (option, index) = optionView(at: recognizer.location(in: self)) else {
+            return
+        }
+        switch recognizer.state {
+        case .began, .changed:
+            if index != currentHoveredOptionIndex {
+                let oldIndex = currentHoveredOptionIndex
+                currentHoveredOptionIndex = index
+                if animator?.isRunning == true {
+                    animator.stopAnimation(true)
+                }
+                animator = UIViewPropertyAnimator(duration: Self.animationDuration, curve: .easeInOut) {
+                    option.hovered = true
+                    if let oldIndex {
+                        self.options[oldIndex].hovered = false
+                    }
+                }
+                animator.startAnimation()
+            }
+        case .ended, .cancelled:
+            if let currentHoveredOptionIndex {
+                self.currentHoveredOptionIndex = nil
+                if animator?.isRunning == true {
+                    animator.stopAnimation(true)
+                }
+                animator = UIViewPropertyAnimator(duration: Self.animationDuration, curve: .easeInOut) {
+                    self.options[currentHoveredOptionIndex].hovered = false
+                }
+                animator.startAnimation()
+            }
+        default:
+            break
+        }
     }
 
 }

Tusker/Views/Poll/StatusPollView.swift

@@ -65,6 +65,7 @@ class StatusPollView: UIView, StatusContentView {
         addSubview(infoLabel)
         
         voteButton = UIButton(configuration: .plain())
+        voteButton.isPointerInteractionEnabled = true
         voteButton.translatesAutoresizingMaskIntoConstraints = false
         voteButton.addTarget(self, action: #selector(votePressed), for: .touchUpInside)
         voteButton.setContentCompressionResistancePriority(.defaultHigh, for: .horizontal)

Tusker/Views/ScrollingSegmentedControl.swift

@@ -24,7 +24,13 @@ class ScrollingSegmentedControl<Value: Hashable>: UIScrollView, UIGestureRecogni
     private var changeSelectionPanRecognizer: UIGestureRecognizer!
     private var selectedOptionAtStartOfPan: Value?
     #if !os(visionOS)
-    private lazy var selectionChangedFeedbackGenerator = UISelectionFeedbackGenerator()
+    private lazy var selectionChangedFeedbackGenerator: UISelectionFeedbackGenerator = {
+        if #available(iOS 17.5, *) {
+            UISelectionFeedbackGenerator(view: self)
+        } else {
+            UISelectionFeedbackGenerator()
+        }
+    }()
     #endif
     
     override var intrinsicContentSize: CGSize {
@@ -111,13 +117,19 @@ class ScrollingSegmentedControl<Value: Hashable>: UIScrollView, UIGestureRecogni
     
     func setSelectedOption(_ value: Value, animated: Bool) {
         guard selectedOption != value,
-              options.contains(where: { $0.value == value }) else {
+              let index = options.firstIndex(where: { $0.value == value }) else {
             return
         }
         
         #if !os(visionOS)
         if selectedOption != nil {
-            selectionChangedFeedbackGenerator.selectionChanged()
+            if #available(iOS 17.5, *) {
+                let optionView = optionsStack.arrangedSubviews[index]
+                let location = convert(CGPoint(x: optionView.bounds.midX, y: optionView.bounds.midY), from: optionView)
+                selectionChangedFeedbackGenerator.selectionChanged(at: location)
+            } else {
+                selectionChangedFeedbackGenerator.selectionChanged()
+            }
         }
         #endif
         
@@ -158,15 +170,19 @@ class ScrollingSegmentedControl<Value: Hashable>: UIScrollView, UIGestureRecogni
     // MARK: Interaction
     
     override func gestureRecognizerShouldBegin(_ gestureRecognizer: UIGestureRecognizer) -> Bool {
+        guard gestureRecognizer === self.panGestureRecognizer else {
+            return true
+        }
+        
         let beganOnSelectedOption: Bool
         if let selectedIndex = options.firstIndex(where: { $0.value == selectedOption }),
-           optionsStack.arrangedSubviews[selectedIndex].frame.contains(self.panGestureRecognizer.location(in: optionsStack)) {
+           optionsStack.arrangedSubviews[selectedIndex].frame.contains(gestureRecognizer.location(in: optionsStack)) {
             beganOnSelectedOption = true
         } else {
             beganOnSelectedOption = false
         }
         
-        // only begin changing selection if the gesutre started on the currently selected item
+        // only begin changing selection if the gesture started on the currently selected item
         // otherwise, let the scroll view handle things
         if gestureRecognizer == self.changeSelectionPanRecognizer {
             return beganOnSelectedOption
@@ -223,7 +239,12 @@ class ScrollingSegmentedControl<Value: Hashable>: UIScrollView, UIGestureRecogni
                 }
                 animator.startAnimation()
                 #if !os(visionOS)
-                selectionChangedFeedbackGenerator.selectionChanged()
+                if #available(iOS 17.5, *) {
+                    let locationInSelf = convert(location, from: optionsStack)
+                    selectionChangedFeedbackGenerator.selectionChanged(at: locationInSelf)
+                } else {
+                    selectionChangedFeedbackGenerator.selectionChanged()
+                }
                 #endif
                 return true
             } else {