macOS: temporarily disable window.isMovable to fix #10110 (#10125)

Fixes #10110

macos/Ghostty.xcodeproj/project.pbxproj

@@ -152,7 +152,6 @@
 				Helpers/AppInfo.swift,
 				Helpers/CodableBridge.swift,
 				Helpers/Cursor.swift,
-				Helpers/DraggableWindowView.swift,
 				Helpers/ExpiringUndoManager.swift,
 				"Helpers/Extensions/Double+Extension.swift",
 				"Helpers/Extensions/EventModifiers+Extension.swift",

macos/Sources/Ghostty/Surface View/SurfaceDragSource.swift

@@ -104,7 +104,11 @@ extension Ghostty {
         
         /// Whether the current drag was cancelled by pressing escape.
         private var dragCancelledByEscape: Bool = false
-        
+
+        /// Original value of `window.isMovable` to restore
+        /// when the mouse exits.
+        private var isWindowMovable: Bool?
+
         deinit {
             if let escapeMonitor {
                 NSEvent.removeMonitor(escapeMonitor)
@@ -131,10 +135,18 @@ extension Ghostty {
         }
         
         override func mouseEntered(with event: NSEvent) {
+            // Temporarily disable `isMovable` to fix
+            // https://github.com/ghostty-org/ghostty/issues/10110
+            isWindowMovable = window?.isMovable
+            window?.isMovable = false
             onHoverChanged?(true)
         }
         
         override func mouseExited(with event: NSEvent) {
+            if let isWindowMovable {
+                window?.isMovable = isWindowMovable
+                self.isWindowMovable = nil
+            }
             onHoverChanged?(false)
         }
         

macos/Sources/Helpers/DraggableWindowView.swift

@@ -1,19 +0,0 @@
-import Cocoa
-import SwiftUI
-
-struct DraggableWindowView: NSViewRepresentable {
-    func makeNSView(context: Context) -> DraggableWindowNSView {
-        return DraggableWindowNSView()
-    }
-
-    func updateNSView(_ nsView: DraggableWindowNSView, context: Context) {
-        // No need to update anything here
-    }
-}
-
-class DraggableWindowNSView: NSView {
-    override func mouseDown(with event: NSEvent) {
-        guard let window = self.window else { return }
-        window.performDrag(with: event)
-    }
-}