Self-heal off-screen main window instead of requiring quit/relaunch

macOS's built-in window-restore (Resume) can place the window at coordinates for a display that's no longer connected, leaving it visible-but-invisible with no way to recover short of quitting. Now re-centers automatically on app activate/Dock reopen, plus a manual "Reset Window Position" menu command as a guaranteed fallback.
2026-08-18 14:20:17 +02:00
parent f3593dc23d
commit f5fd09ac33
2 changed files with 94 additions and 0 deletions
@@ -0,0 +1,49 @@
+//
+//  WindowPositionTests.swift
+//  oAITests
+//
+// SPDX-License-Identifier: PolyForm-Noncommercial-1.0.0
+// Copyright (C) 2026 Rune Olsen
+
+import Testing
+import Foundation
+import CoreGraphics
+@testable import Confab
+
+@Suite("Off-screen window detection")
+struct WindowPositionTests {
+
+    private let mainScreen = CGRect(x: 0, y: 0, width: 2560, height: 1664)
+
+    @Test("Window inside the only connected screen is not off-screen")
+    func onscreenWindow() {
+        let frame = CGRect(x: 100, y: 100, width: 1024, height: 800)
+        #expect(AppDelegate.isFrameOffscreen(frame, screenFrames: [mainScreen]) == false)
+    }
+
+    @Test("Window at coordinates from a now-disconnected external display is off-screen")
+    func offscreenWindow() {
+        // e.g. previously positioned on an external monitor to the right of the built-in display
+        let frame = CGRect(x: 3000, y: 200, width: 1024, height: 800)
+        #expect(AppDelegate.isFrameOffscreen(frame, screenFrames: [mainScreen]) == true)
+    }
+
+    @Test("Window merely partially overlapping a screen counts as on-screen")
+    func partiallyOverlappingWindow() {
+        let frame = CGRect(x: 2500, y: 100, width: 1024, height: 800)
+        #expect(AppDelegate.isFrameOffscreen(frame, screenFrames: [mainScreen]) == false)
+    }
+
+    @Test("Off-screen relative to one display but onscreen on a second connected display")
+    func multiMonitorOnscreen() {
+        let secondScreen = CGRect(x: 2560, y: 0, width: 1920, height: 1080)
+        let frame = CGRect(x: 3000, y: 200, width: 1024, height: 800)
+        #expect(AppDelegate.isFrameOffscreen(frame, screenFrames: [mainScreen, secondScreen]) == false)
+    }
+
+    @Test("No connected screens means every window is off-screen")
+    func noScreens() {
+        let frame = CGRect(x: 100, y: 100, width: 1024, height: 800)
+        #expect(AppDelegate.isFrameOffscreen(frame, screenFrames: []) == true)
+    }
+}