update changes

SnowfallApp.xcodeproj/project.pbxproj

@@ -272,6 +272,7 @@
 				CURRENT_PROJECT_VERSION = 1;
 				DEAD_CODE_STRIPPING = YES;
 				DEVELOPMENT_ASSET_PATHS = "\"SnowfallApp/Preview Content\"";
+				DEVELOPMENT_TEAM = 694AARYR2X;
 				ENABLE_APP_SANDBOX = YES;
 				ENABLE_HARDENED_RUNTIME = YES;
 				ENABLE_PREVIEWS = YES;
@@ -317,6 +318,7 @@
 				CURRENT_PROJECT_VERSION = 1;
 				DEAD_CODE_STRIPPING = YES;
 				DEVELOPMENT_ASSET_PATHS = "\"SnowfallApp/Preview Content\"";
+				DEVELOPMENT_TEAM = 694AARYR2X;
 				ENABLE_APP_SANDBOX = YES;
 				ENABLE_HARDENED_RUNTIME = YES;
 				ENABLE_PREVIEWS = YES;

SnowfallApp/Info.plist

@@ -8,5 +8,7 @@
 	<true/>
 	<key>NSRequiresAquaSystemAppearance</key>
 	<false/>
+	<key>LSUIElement</key>
+	<true/>
 </dict>
 </plist>

SnowfallApp/Sources/SnowfallApp.swift

@@ -19,8 +19,12 @@ class AppDelegate: NSObject, NSApplicationDelegate {
     var snowWindows: [NSWindow] = []
 
     func applicationDidFinishLaunching(_ notification: Notification) {
+        NSApp.setActivationPolicy(.accessory)
         setupSnowWindows()
         NotificationCenter.default.addObserver(self, selector: #selector(setupSnowWindows), name: NSApplication.didChangeScreenParametersNotification, object: nil)
+        NSWorkspace.shared.notificationCenter.addObserver(self, selector: #selector(handleSpaceChange), name: NSWorkspace.activeSpaceDidChangeNotification, object: nil)
+        NSWorkspace.shared.notificationCenter.addObserver(self, selector: #selector(handleSpaceChange), name: NSWorkspace.didActivateApplicationNotification, object: nil)
+        updateSnowVisibility()
     }
 
     @objc private func setupSnowWindows() {
@@ -42,6 +46,8 @@ class AppDelegate: NSObject, NSApplicationDelegate {
         for screen in NSScreen.screens {
             createSnowWindow(for: screen, in: globalRect)
         }
+
+        updateSnowVisibility()
     }
 
     private func createSnowWindow(for screen: NSScreen, in globalRect: CGRect) {
@@ -56,7 +62,7 @@ class AppDelegate: NSObject, NSApplicationDelegate {
         window.hasShadow = false
         window.backgroundColor = .clear
         window.level = .screenSaver
-        window.collectionBehavior = [.canJoinAllSpaces, .fullScreenAuxiliary, .ignoresCycle, .transient, .stationary]
+        window.collectionBehavior = [.ignoresCycle, .transient, .stationary]
         window.ignoresMouseEvents = true
         window.isReleasedWhenClosed = false
         window.setFrame(screenRect, display: true)
@@ -65,4 +71,43 @@ class AppDelegate: NSObject, NSApplicationDelegate {
 
         snowWindows.append(window)
     }
+
+    @objc private func handleSpaceChange() {
+        updateSnowVisibility()
+    }
+
+    private func updateSnowVisibility() {
+        let shouldHide = isAnyFullscreenWindowPresent()
+        for window in snowWindows {
+            if shouldHide {
+                window.orderOut(nil)
+            } else {
+                window.orderFront(nil)
+            }
+        }
+    }
+
+    private func isAnyFullscreenWindowPresent() -> Bool {
+        let options: CGWindowListOption = [.optionOnScreenOnly, .excludeDesktopElements]
+        guard let windowList = CGWindowListCopyWindowInfo(options, kCGNullWindowID) as? [[String: Any]] else { return false }
+
+        let screenSizes = NSScreen.screens.map { $0.frame.size }
+        let tolerance: CGFloat = 2.0
+
+        for entry in windowList {
+            guard let layer = entry[kCGWindowLayer as String] as? Int, layer == 0,
+                  let bounds = entry[kCGWindowBounds as String] as? [String: Any],
+                  let width = bounds["Width"] as? CGFloat,
+                  let height = bounds["Height"] as? CGFloat else { continue }
+
+            for screenSize in screenSizes {
+                let widthClose = abs(width - screenSize.width) <= tolerance
+                let heightClose = abs(height - screenSize.height) <= tolerance
+                if widthClose && heightClose {
+                    return true
+                }
+            }
+        }
+        return false
+    }
 }