✨ Ability to use macOS 15's window manager with Loop

Loop.xcodeproj/project.pbxproj

@@ -48,7 +48,7 @@
 		A864F4682AA660CD00579738 /* WindowDragManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = A864F4672AA660CD00579738 /* WindowDragManager.swift */; };
 		A867C20E2C26522B005831BC /* Observer.swift in Sources */ = {isa = PBXBuildFile; fileRef = A867C20D2C26522B005831BC /* Observer.swift */; };
 		A86949862A8F2BB70051AAAF /* CGKeyCode+Extensions.swift in Sources */ = {isa = PBXBuildFile; fileRef = A86949852A8F2BB60051AAAF /* CGKeyCode+Extensions.swift */; };
-		A869C1A12B38C6E600AD1A84 /* StageManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = A869C1A02B38C6E600AD1A84 /* StageManager.swift */; };
+		A869C1A12B38C6E600AD1A84 /* SystemWindowManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = A869C1A02B38C6E600AD1A84 /* SystemWindowManager.swift */; };
 		A86B97AD2AB79E2500099D7F /* ShakeEffect.swift in Sources */ = {isa = PBXBuildFile; fileRef = A86B97AC2AB79E2500099D7F /* ShakeEffect.swift */; };
 		A86CB7332A3D22E7006A78F2 /* WindowEngine.swift in Sources */ = {isa = PBXBuildFile; fileRef = A86CB7322A3D22E7006A78F2 /* WindowEngine.swift */; };
 		A8789F6729805B190040512E /* RadialMenuView.swift in Sources */ = {isa = PBXBuildFile; fileRef = A8789F6629805B190040512E /* RadialMenuView.swift */; };
@@ -137,7 +137,7 @@
 		A864F4672AA660CD00579738 /* WindowDragManager.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = WindowDragManager.swift; sourceTree = "<group>"; };
 		A867C20D2C26522B005831BC /* Observer.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Observer.swift; sourceTree = "<group>"; };
 		A86949852A8F2BB60051AAAF /* CGKeyCode+Extensions.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "CGKeyCode+Extensions.swift"; sourceTree = "<group>"; };
-		A869C1A02B38C6E600AD1A84 /* StageManager.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = StageManager.swift; sourceTree = "<group>"; };
+		A869C1A02B38C6E600AD1A84 /* SystemWindowManager.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SystemWindowManager.swift; sourceTree = "<group>"; };
 		A86AFD7529888B29008F4892 /* README.md */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = net.daringfireball.markdown; path = README.md; sourceTree = "<group>"; };
 		A86B97AC2AB79E2500099D7F /* ShakeEffect.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ShakeEffect.swift; sourceTree = "<group>"; };
 		A86CB7322A3D22E7006A78F2 /* WindowEngine.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = WindowEngine.swift; sourceTree = "<group>"; };
@@ -263,7 +263,7 @@
 				A864F4672AA660CD00579738 /* WindowDragManager.swift */,
 				A82521ED29E235AC00139654 /* PermissionsManager.swift */,
 				A8EF1F08299C87DF00633440 /* IconManager.swift */,
-				A869C1A02B38C6E600AD1A84 /* StageManager.swift */,
+				A869C1A02B38C6E600AD1A84 /* SystemWindowManager.swift */,
 			);
 			path = Managers;
 			sourceTree = "<group>";
@@ -597,7 +597,7 @@
 				A867C20E2C26522B005831BC /* Observer.swift in Sources */,
 				A82740982AB00FCE00B9BDC5 /* Color+Extensions.swift in Sources */,
 				A82B1AF62BD35C8500E2F3F9 /* BehaviorConfiguration.swift in Sources */,
-				A869C1A12B38C6E600AD1A84 /* StageManager.swift in Sources */,
+				A869C1A12B38C6E600AD1A84 /* SystemWindowManager.swift in Sources */,
 				A8330ACD2A3AC1D100673C8D /* CGGeometry+Extensions.swift in Sources */,
 				A82B1AF22BD35A3800E2F3F9 /* PreviewConfiguration.swift in Sources */,
 				A8330AC72A3AC19500673C8D /* NSScreen+Extensions.swift in Sources */,

Loop/Extensions/AXUIElement+Extensions.swift

@@ -147,6 +147,19 @@ extension AXUIElement {
 
         return id
     }
+
+    func performAction(_ action: NSAccessibility.Action) throws {
+        let error = AXUIElementPerformAction(self, action as CFString)
+
+        guard error == .success else {
+            throw error
+        }
+    }
+
+    var children: [AXUIElement] {
+        let children: [AXUIElement]? = try? getValue(.children)
+        return children ?? []
+    }
 }
 
 extension AXError: Swift.Error {}

Loop/Extensions/Defaults+Extensions.swift

@@ -89,7 +89,8 @@ extension Defaults.Keys {
     )
 
     // Advanced
-    static let animateWindowResizes = Key<Bool>("animateWindowResizes", default: false, iCloud: true) // BETA
+    static let useSystemWindowManagerWhenAvailable = Key<Bool>("useSystemWindowManagerWhenAvailable", default: false, iCloud: true)
+    static let animateWindowResizes = Key<Bool>("animateWindowResizes", default: false, iCloud: true)
     static let disableCursorInteraction = Key<Bool>("disableCursorInteraction", default: false, iCloud: true)
     static let ignoreFullscreen = Key<Bool>("ignoreFullscreen", default: false, iCloud: true)
     static let hideUntilDirectionIsChosen = Key<Bool>("hideUntilDirectionIsChosen", default: false, iCloud: true)

Loop/Extensions/NSScreen+Extensions.swift

@@ -51,8 +51,8 @@ extension NSScreen {
     var stageStripFreeFrame: NSRect {
         var frame = visibleFrame
 
-        if Defaults[.respectStageManager], StageManager.enabled, StageManager.shown {
-            if StageManager.position == .leading {
+        if Defaults[.respectStageManager], SystemWindowManager.StageManager.enabled, SystemWindowManager.StageManager.enabled {
+            if SystemWindowManager.StageManager.position == .leading {
                 frame.origin.x += Defaults[.stageStripSize]
             }
 

Loop/Localizable.xcstrings

@@ -4118,6 +4118,9 @@
           }
         }
       }
+    },
+    "Go Back" : {
+
     },
     "Gradient" : {
       "extractionState" : "manual",
@@ -9807,6 +9810,9 @@
           }
         }
       }
+    },
+    "macOS's \"Tile by dragging windows to screen edges\" feature is currently\nenabled, which will conflict with Loop's window snapping functionality." : {
+
     },
     "Measurement unit: percentage" : {
       "extractionState" : "manual",
@@ -18495,6 +18501,9 @@
           }
         }
       }
+    },
+    "Use macOS window manager when available" : {
+
     },
     "Use pixels" : {
       "extractionState" : "manual",

Loop/Luminare/Loop/AdvancedConfiguration.swift

@@ -11,6 +11,10 @@ import Luminare
 import SwiftUI
 
 class AdvancedConfigurationModel: ObservableObject {
+    @Published var useSystemWindowManagerWhenAvailable = Defaults[.useSystemWindowManagerWhenAvailable] {
+        didSet { Defaults[.useSystemWindowManagerWhenAvailable] = useSystemWindowManagerWhenAvailable }
+    }
+
     @Published var animateWindowResizes = Defaults[.animateWindowResizes] {
         didSet { Defaults[.animateWindowResizes] = animateWindowResizes }
     }
@@ -70,6 +74,9 @@ struct AdvancedConfigurationView: View {
 
     var body: some View {
         LuminareSection("General") {
+            if #available(macOS 15.0, *) {
+                LuminareToggle("Use macOS window manager when available", isOn: $model.useSystemWindowManagerWhenAvailable)
+            }
             LuminareToggle(
                 "Animate window resize",
                 info: .init("This feature is still under development.", .orange),

Loop/Luminare/Settings/Behavior/BehaviorConfiguration.swift

@@ -43,6 +43,10 @@ class BehaviorConfigurationModel: ObservableObject {
         didSet { Defaults[.restoreWindowFrameOnDrag] = restoreWindowFrameOnDrag }
     }
 
+    @Published var useSystemWindowManagerWhenAvailable = Defaults[.useSystemWindowManagerWhenAvailable] {
+        didSet { Defaults[.useSystemWindowManagerWhenAvailable] = useSystemWindowManagerWhenAvailable }
+    }
+
     @Published var enablePadding = Defaults[.enablePadding] {
         didSet { Defaults[.enablePadding] = enablePadding }
     }
@@ -74,6 +78,7 @@ class BehaviorConfigurationModel: ObservableObject {
     @Published var isPaddingConfigurationViewPresented = false
 
     let previewVisibility = Defaults[.previewVisibility]
+    let systemSnappingWarning: LuminareInfoView = .init("macOS's \"Tile by dragging windows to screen edges\" feature is currently\nenabled, which will conflict with Loop's window snapping functionality.")
 }
 
 struct BehaviorConfigurationView: View {
@@ -93,17 +98,29 @@ struct BehaviorConfigurationView: View {
         }
 
         LuminareSection("Window") {
-            LuminareToggle("Window snapping", isOn: $model.windowSnapping)
-            LuminareToggle("Restore window frame on drag", isOn: $model.restoreWindowFrameOnDrag)
-            LuminareToggle("Include padding", isOn: $model.enablePadding)
+            if #available(macOS 15, *) {
+                LuminareToggle(
+                    "Window snapping",
+                    info: SystemWindowManager.MoveAndResize.snappingEnabled ? model.systemSnappingWarning : nil,
+                    isOn: $model.windowSnapping
+                )
+            } else {
+                LuminareToggle("Window snapping", isOn: $model.windowSnapping)
+            }
 
-            if model.enablePadding {
-                Button("Configure padding…") {
-                    model.isPaddingConfigurationViewPresented = true
-                }
-                .luminareModal(isPresented: $model.isPaddingConfigurationViewPresented) {
-                    PaddingConfigurationView(isPresented: $model.isPaddingConfigurationViewPresented)
-                        .frame(width: 400)
+            // Enabling the system window manager will override these options anyway, so hide them
+            if !model.useSystemWindowManagerWhenAvailable {
+                LuminareToggle("Restore window frame on drag", isOn: $model.restoreWindowFrameOnDrag)
+                LuminareToggle("Include padding", isOn: $model.enablePadding)
+
+                if model.enablePadding {
+                    Button("Configure padding…") {
+                        model.isPaddingConfigurationViewPresented = true
+                    }
+                    .luminareModal(isPresented: $model.isPaddingConfigurationViewPresented) {
+                        PaddingConfigurationView(isPresented: $model.isPaddingConfigurationViewPresented)
+                            .frame(width: 400)
+                    }
                 }
             }
         }

Loop/Luminare/Settings/Keybindings/KeybindingItem.swift

@@ -40,7 +40,8 @@ struct KeybindingItemView: View {
         .init(.init(localized: "Size Adjustment"), WindowDirection.sizeAdjustment),
         .init(.init(localized: "Shrink"), WindowDirection.shrink),
         .init(.init(localized: "Grow"), WindowDirection.grow),
-        .init(.init(localized: "Move"), WindowDirection.move)
+        .init(.init(localized: "Move"), WindowDirection.move),
+        .init(.init(localized: "Go Back"), [WindowDirection.initialFrame, WindowDirection.undo])
     ]
 
     var moreSection: PickerSection<WindowDirection> {

Loop/Managers/SystemWindowManager.swift

@@ -0,0 +1,169 @@
+//
+//  SystemWindowManager.swift
+//  Loop
+//
+//  Created by Kai Azim on 2023-12-24.
+//
+
+import Defaults
+import SwiftUI
+
+class SystemWindowManager {
+    private static let windowManagerDefaults = UserDefaults(suiteName: "com.apple.WindowManager")
+    private static let dockDefaults = UserDefaults(suiteName: "com.apple.dock")
+
+    // MARK: - Stage Manager
+
+    enum StageManager {
+        static var enabled: Bool {
+            windowManagerDefaults?.bool(forKey: "GloballyEnabled") ?? false
+        }
+
+        static var shown: Bool {
+            !(windowManagerDefaults?.bool(forKey: "AutoHide") ?? true)
+        }
+
+        static var position: Edge {
+            dockDefaults?.string(forKey: "orientation") == "left" ? .trailing : .leading
+        }
+    }
+
+    // MARK: - Move & Resize
+
+    // This is a direct mapping of the menu items in the "Move & Resize" menu
+    @available(macOS 15, *)
+    enum MoveAndResize: String {
+        // General
+        case minimize = "_performMiniaturize:"
+        case zoom = "_performZoom:"
+        case fill = "_zoomFill:"
+        case center = "_zoomCenter:"
+
+        // Halves
+        case left = "_zoomLeft:"
+        case right = "_zoomRight:"
+        case top = "_zoomTop:"
+        case bottom = "_zoomBottom:"
+
+        // Quarters
+        case topLeft = "_zoomTopLeft:"
+        case topRight = "_zoomTopRight:"
+        case bottomLeft = "_zoomBottomLeft:"
+        case bottomRight = "_zoomBottomRight:"
+
+        // Arrange
+        case leftAndRight = "_zoomLeftAndRight:"
+        case rightAndLeft = "_zoomRightAndLeft:"
+        case topAndBottom = "_zoomTopAndBottom:"
+        case bottomAndTop = "_zoomBottomAndTop:"
+        case quarters = "_zoomQuarters:"
+
+        case returnToPreviousSize = "_zoomUntile:"
+
+        static var generalActions: [MoveAndResize] {
+            [.minimize, .zoom, .fill, .center]
+        }
+
+        static var halvesActions: [MoveAndResize] {
+            [.left, .right, .top, .bottom]
+        }
+
+        static var quartersActions: [MoveAndResize] {
+            [.topLeft, .topRight, .bottomLeft, .bottomRight]
+        }
+
+        static var arrangeActions: [MoveAndResize] {
+            [.leftAndRight, .rightAndLeft, .topAndBottom, .bottomAndTop, .quarters]
+        }
+
+        func getItem(for app: NSRunningApplication) throws -> AXUIElement? {
+            let pid = app.processIdentifier
+
+            // Scan menubar items
+            let element = AXUIElementCreateApplication(pid)
+            let menubar = try (element.getValue(.menuBar) as CFTypeRef?) as! AXUIElement
+            let menubarItems = menubar.children.reversed() // Help menu will be last
+
+            for menubarItem in menubarItems {
+                guard let windowMenuItems = menubarItem.children.first?.children else {
+                    continue
+                }
+
+                if MoveAndResize.generalActions.contains(self),
+                   let menuItem = try windowMenuItems.first(where: { try $0.getValue(.identifier) == rawValue }) {
+                    return menuItem
+                } else {
+                    let menuItemsWithSubmenu = windowMenuItems.filter { $0.children.first?.children != nil }.map(\.children.first)
+
+                    for item in menuItemsWithSubmenu {
+                        if let menuItem = try item?.children.first(where: { try $0.getValue(.identifier) as String? == rawValue }) {
+                            return menuItem
+                        }
+                    }
+                }
+            }
+
+            return nil
+        }
+
+        static var snappingEnabled: Bool {
+            windowManagerDefaults?.bool(forKey: "EnableTilingByEdgeDrag") ?? false
+        }
+
+        static var padding: CGFloat {
+            windowManagerDefaults?.bool(forKey: "EnableTiledWindowMargins") ?? false ? 9 : 0
+        }
+
+        static func syncPadding() {
+            let newPadding = padding
+
+            Defaults[.enablePadding] = newPadding != 0
+
+            if newPadding != 0 {
+                Defaults[.padding] = PaddingModel(
+                    window: newPadding,
+                    externalBar: 0,
+                    top: newPadding,
+                    bottom: newPadding,
+                    right: newPadding,
+                    left: newPadding,
+                    configureScreenPadding: false
+                )
+            }
+        }
+    }
+}
+
+@available(macOS 15, *)
+extension WindowDirection {
+    var systemEquivalent: SystemWindowManager.MoveAndResize? {
+        switch self {
+        case .minimize:
+            .minimize
+        case .maximize:
+            .fill
+        case .center:
+            .center
+        case .leftHalf:
+            .left
+        case .rightHalf:
+            .right
+        case .topHalf:
+            .top
+        case .bottomHalf:
+            .bottom
+        case .topLeftQuarter:
+            .topLeft
+        case .topRightQuarter:
+            .topRight
+        case .bottomLeftQuarter:
+            .bottomLeft
+        case .bottomRightQuarter:
+            .bottomRight
+        case .initialFrame:
+            .returnToPreviousSize
+        default:
+            nil
+        }
+    }
+}