feat: improve support for scrcpy always-on-top windows

src/api-wrappers/AXUIElement.swift

@@ -89,7 +89,8 @@ extension AXUIElement {
                     keynote(runningApp) ||
                     iina(runningApp) ||
                     openFlStudio(runningApp, title) ||
-                    crossoverWindow(runningApp, role, subrole, level)
+                    crossoverWindow(runningApp, role, subrole, level) ||
+                    isAlwaysOnTopScrcpy(runningApp, level, role, subrole)
             ) || (
                 // CGWindowLevel == .normalWindow helps filter out iStats Pro and other top-level pop-overs, and floating windows
                 level == CGWindow.normalLevel && (
@@ -218,6 +219,12 @@ extension AXUIElement {
             && (runningApp.localizedName == "wine64-preloader" || runningApp.executableURL?.absoluteString.contains("/winetemp-") ?? false)
     }
 
+    private static func isAlwaysOnTopScrcpy(_ runningApp: NSRunningApplication, _ level: CGWindowLevel, _ role: String?, _ subrole: String?) -> Bool {
+        // scrcpy presents as a floating window when "Always on top" is enabled, so it doesn't get picked up normally.
+        // It also doesn't have a bundle ID, so we need to match using the localized name, which should always be the same.
+        return runningApp.localizedName == "scrcpy" && level == CGWindow.floatingWindow && role == kAXWindowRole && subrole == kAXStandardWindowSubrole
+    }
+
     func position() throws -> CGPoint? {
         return try value(kAXPositionAttribute, CGPoint.zero, .cgPoint)
     }

src/api-wrappers/CGWindow.swift

@@ -5,6 +5,7 @@ typealias CGWindow = [CFString: Any]
 extension CGWindow {
     static let normalLevel = CGWindowLevelForKey(.normalWindow)
     static let baseLevel = CGWindowLevelForKey(.baseWindow)
+    static let floatingWindow = CGWindowLevelForKey(.floatingWindow)
 
     static func windows(_ option: CGWindowListOption) -> [CGWindow] {
         return CGWindowListCopyWindowInfo([.excludeDesktopElements, option], kCGNullWindowID) as! [CGWindow]