Inform the user when macOS 15 tiling is enabled

Rectangle.xcodeproj/project.pbxproj

@@ -20,6 +20,8 @@
 		6490B3A127BF98C70056C220 /* BottomRightEighthCalculation.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6490B3A027BF98C70056C220 /* BottomRightEighthCalculation.swift */; };
 		729E0A982AFF76B1006E2F48 /* CenterProminentlyCalculation.swift in Sources */ = {isa = PBXBuildFile; fileRef = 729E0A972AFF76B1006E2F48 /* CenterProminentlyCalculation.swift */; };
 		866661F2257D248A00A9CD2D /* RepeatedExecutionsInThirdsCalculation.swift in Sources */ = {isa = PBXBuildFile; fileRef = 866661F1257D248A00A9CD2D /* RepeatedExecutionsInThirdsCalculation.swift */; };
+		94E9B08E2C3B8D97004C7F41 /* MacTilingDefaults.swift in Sources */ = {isa = PBXBuildFile; fileRef = 94E9B08D2C3B8D97004C7F41 /* MacTilingDefaults.swift */; };
+		94E9B0902C3E4578004C7F41 /* StringExtension.swift in Sources */ = {isa = PBXBuildFile; fileRef = 94E9B08F2C3E4578004C7F41 /* StringExtension.swift */; };
 		9818E00D28B59205004AA524 /* CompoundSnapArea.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9818E00C28B59205004AA524 /* CompoundSnapArea.swift */; };
 		9818E01028B59396004AA524 /* HalvesCompoundCalculation.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9818E00F28B59396004AA524 /* HalvesCompoundCalculation.swift */; };
 		9818E01228B59B64004AA524 /* ThirdsCompoundCalculation.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9818E01128B59B64004AA524 /* ThirdsCompoundCalculation.swift */; };
@@ -185,6 +187,8 @@
 		6490B3A027BF98C70056C220 /* BottomRightEighthCalculation.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = BottomRightEighthCalculation.swift; sourceTree = "<group>"; };
 		729E0A972AFF76B1006E2F48 /* CenterProminentlyCalculation.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CenterProminentlyCalculation.swift; sourceTree = "<group>"; };
 		866661F1257D248A00A9CD2D /* RepeatedExecutionsInThirdsCalculation.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RepeatedExecutionsInThirdsCalculation.swift; sourceTree = "<group>"; };
+		94E9B08D2C3B8D97004C7F41 /* MacTilingDefaults.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MacTilingDefaults.swift; sourceTree = "<group>"; };
+		94E9B08F2C3E4578004C7F41 /* StringExtension.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = StringExtension.swift; sourceTree = "<group>"; };
 		9808018523D05C0B0077774A /* RectangleRelease.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = RectangleRelease.entitlements; sourceTree = "<group>"; };
 		9808018623D05C1F0077774A /* RectangleLauncherRelease.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = RectangleLauncherRelease.entitlements; sourceTree = "<group>"; };
 		9818E00C28B59205004AA524 /* CompoundSnapArea.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CompoundSnapArea.swift; sourceTree = "<group>"; };
@@ -498,6 +502,8 @@
 				98BEFA472620DEDC00D9D54F /* NSImageExtension.swift */,
 				98192DD9270F606C00015E66 /* Debounce.swift */,
 				AA0ACC2E2864A86D0025E376 /* StageUtil.swift */,
+				94E9B08D2C3B8D97004C7F41 /* MacTilingDefaults.swift */,
+				94E9B08F2C3E4578004C7F41 /* StringExtension.swift */,
 				AAADE1AE28CBAB0000036331 /* WindowUtil.swift */,
 				AA4DA2FA28FDC94A00355CEB /* DispatchTimeExtension.swift */,
 				AA536C2629005DD000579AC6 /* TimeoutCache.swift */,
@@ -840,6 +846,7 @@
 				98A009AB2512491300CFBF0C /* CenterHalfCalculation.swift in Sources */,
 				9818E01828B63C48004AA524 /* FourthsCompoundCalculation.swift in Sources */,
 				D0CFE33327A8CCB1004DA47B /* TopRightThirdCalculation.swift in Sources */,
+				94E9B08E2C3B8D97004C7F41 /* MacTilingDefaults.swift in Sources */,
 				9821403522B38A2B00ABFB3F /* UpperRightCalculation.swift in Sources */,
 				984EDB0F29A42ED200D119D2 /* LaunchOnLogin.swift in Sources */,
 				9824702F22AFA2E50037B409 /* AccessibilityAuthorization.swift in Sources */,
@@ -883,6 +890,7 @@
 				9824703B22B139780037B409 /* CUtil.swift in Sources */,
 				988D067D22EB4E17004EABD7 /* AlmostMaximizeCalculation.swift in Sources */,
 				98C1008C2305F1FA006E5344 /* SubsequentExecutionMode.swift in Sources */,
+				94E9B0902C3E4578004C7F41 /* StringExtension.swift in Sources */,
 				6490B3A127BF98C70056C220 /* BottomRightEighthCalculation.swift in Sources */,
 				985B9BF922BB6F5100A2E8F0 /* MessageView.swift in Sources */,
 				988D066722EB4CC0004EABD7 /* LastTwoThirdsCalculation.swift in Sources */,

Rectangle/AppDelegate.swift

@@ -120,6 +120,7 @@ class AppDelegate: NSObject, NSApplicationDelegate {
         self.titleBarManager = TitleBarManager()
         self.initializeTodo()
         checkForProblematicApps()
+        checkForBuiltInTiling()
     }
 
     func checkForConflictingApps() {
@@ -191,6 +192,40 @@ class AppDelegate: NSObject, NSApplicationDelegate {
         }
     }
 
+    func checkForBuiltInTiling() {
+        guard #available(macOS 15, *), !Defaults.internalTilingNotified.enabled
+        else {
+            return
+        }
+
+        Defaults.internalTilingNotified.enabled = true
+        if MacTilingDefaults.tilingByEdgeDrag.enabled || MacTilingDefaults.tilingOptionAccelerator.enabled {
+            let result = AlertUtil.threeButtonAlert(
+                question: "Conflict with macOS tiling".localized,
+                text: "Drag to screen edge tiling is enabled in both Rectangle and macOS.".localized,
+                buttonOneText: "Disable in macOS".localized,
+                buttonTwoText: "Disable in Rectangle".localized,
+                buttonThreeText: "Dismiss".localized)
+            switch result {
+            case .alertFirstButtonReturn:
+                MacTilingDefaults.tilingByEdgeDrag.disable()
+                MacTilingDefaults.tilingOptionAccelerator.disable()
+
+                let result = AlertUtil.twoButtonAlert(
+                    question: "Tiling in macOS has been disabled".localized,
+                    text: "To re-enable it, go to System Settings → Desktop & Dock → Windows".localized,
+                    cancelText: "Open System Settings".localized)
+                if result == .alertSecondButtonReturn {
+                    MacTilingDefaults.openSystemSettings()
+                }
+            case .alertSecondButtonReturn:
+                Defaults.windowSnapping.enabled = false
+            default:
+                break
+            }
+        }
+    }
+
     private func showWelcomeWindow() {
         let welcomeWindowController = NSStoryboard(name: "Main", bundle: nil)
             .instantiateController(withIdentifier: "WelcomeWindowController") as? NSWindowController

Rectangle/Defaults.swift

@@ -87,6 +87,7 @@ class Defaults {
     static let ignoreDragSnapToo = OptionalBoolDefault(key: "ignoreDragSnapToo")
     static let systemWideMouseDown = OptionalBoolDefault(key: "systemWideMouseDown")
     static let systemWideMouseDownApps = JSONDefault<Set<String>>(key:"systemWideMouseDownApps", defaultValue: Set<String>(["org.languagetool.desktop", "com.microsoft.teams2"]))
+    static let internalTilingNotified = BoolDefault(key: "internalTilingNotified")
 
     static var array: [Default] = [
         launchOnLogin,

Rectangle/Utilities/MacTilingDefaults.swift

@@ -0,0 +1,42 @@
+//
+//  MacTilingDefaults.swift
+//  Rectangle
+//
+//  Copyright © 2024 Ryan Hanson. All rights reserved.
+//
+
+import Foundation
+
+/// Read / disable the user defaults values for the macOS built-in window tiling, added in macOS 15 Sequoia.
+/// These are toggled in the Desktop & Dock System Settings Pane:
+enum MacTilingDefaults: String {
+    case tilingByEdgeDrag = "EnableTilingByEdgeDrag"
+    case tilingOptionAccelerator = "EnableTilingOptionAccelerator"
+    case tiledWindowMargins = "EnableTiledWindowMargins"
+
+    var enabled: Bool {
+        guard #available(macOS 15, *), let defaults = UserDefaults(suiteName: "com.apple.WindowManager")
+        else {
+            return false
+        }
+
+        if defaults.object(forKey: self.rawValue) == nil { // These are enabled by default
+            return true
+        }
+        return defaults.bool(forKey: self.rawValue)
+    }
+
+    func disable() {
+        guard let defaults = UserDefaults(suiteName: "com.apple.WindowManager")
+        else {
+            return
+        }
+
+        defaults.set(false, forKey: self.rawValue)
+        defaults.synchronize()
+    }
+
+    static func openSystemSettings() {
+        NSWorkspace.shared.open(URL(string:"x-apple.systempreferences:com.apple.preference.Desktop-Settings.extension")!)
+    }
+}

Rectangle/Utilities/StringExtension.swift

@@ -0,0 +1,16 @@
+//
+//  StringExtension.swift
+//  Rectangle
+//
+//  Copyright © 2024 Ryan Hanson. All rights reserved.
+//
+
+import Foundation
+
+extension String {
+
+    var localized: String {
+        NSLocalizedString(self, tableName: "Main", comment: "")
+    }
+
+}

Rectangle/mul.lproj/Main.xcstrings

@@ -11643,6 +11643,9 @@
         }
       }
     },
+    "Conflict with macOS tiling" : {
+      "extractionState" : "manual"
+    },
     "Conflict with system setting" : {
       "localizations" : {
         "ar" : {
@@ -13741,6 +13744,15 @@
         }
       }
     },
+    "Disable in macOS" : {
+      "extractionState" : "manual"
+    },
+    "Disable in Rectangle" : {
+      "extractionState" : "manual"
+    },
+    "Dismiss" : {
+      "extractionState" : "manual"
+    },
     "Display" : {
       "localizations" : {
         "ar" : {
@@ -14093,6 +14105,9 @@
         }
       }
     },
+    "Drag to screen edge tiling is enabled in both Rectangle and macOS." : {
+      "extractionState" : "manual"
+    },
     "dRJ-4n-Yzg.title" : {
       "comment" : "Class = \"NSMenuItem\"; title = \"Undo\"; ObjectID = \"dRJ-4n-Yzg\";",
       "extractionState" : "extracted_with_value",
@@ -39755,6 +39770,9 @@
         }
       }
     },
+    "Tiling in macOS has been disabled" : {
+      "extractionState" : "manual"
+    },
     "tlD-Oa-oAM.title" : {
       "comment" : "Class = \"NSMenu\"; title = \"Kern\"; ObjectID = \"tlD-Oa-oAM\";",
       "extractionState" : "manual",
@@ -40065,6 +40083,9 @@
         }
       }
     },
+    "To re-enable it, go to System Settings → Desktop & Dock → Windows" : {
+      "extractionState" : "manual"
+    },
     "Top sixths from corners; maximize" : {
       "localizations" : {
         "ar" : {