Fix macOS window not appearing when switching between Spaces

When the tray window is visible and the user switches to a different
Space (desktop), clicking the tray icon now brings the window to the
current Space instead of hiding it. This is achieved by checking if
the window has focus before toggling visibility - if unfocused (likely
on another Space), the window is brought to front on the active Space.

Author: kdroidFilter

src/commonMain/kotlin/com/kdroid/composetray/tray/api/TrayApp.kt

@@ -511,6 +511,9 @@ private fun ApplicationScope.TrayAppImplOriginal(
     // Position pre-computed at click time so the LaunchedEffect can use it immediately.
     var pendingPosition by remember { mutableStateOf<WindowPosition?>(null) }
 
+    // Store window reference for macOS Space detection
+    var windowRef by remember { mutableStateOf<java.awt.Window?>(null) }
+
     val dialogState = rememberDialogState(size = currentWindowSize)
     LaunchedEffect(currentWindowSize) { dialogState.size = currentWindowSize }
 
@@ -538,6 +541,24 @@ private fun ApplicationScope.TrayAppImplOriginal(
         if (now - lastPrimaryActionAt >= toggleDebounceMs) {
             lastPrimaryActionAt = now
             if (isVisible) {
+                // On macOS, check if window has focus before hiding
+                // If it doesn't have focus (e.g., on another Space), bring it to front instead
+                if (getOperatingSystem() == MACOS && windowRef != null) {
+                    val hasFocus = runCatching { windowRef!!.isFocused() }.getOrElse { false }
+                    if (!hasFocus) {
+                        // Window is not focused (likely on another Space), bring it to current Space
+                        invokeLater {
+                            runCatching { MacTrayLoader.lib.tray_set_windows_move_to_active_space() }
+                            runCatching { MacOSWindowManager().setMoveToActiveSpace(windowRef!!) }
+                            runCatching {
+                                windowRef!!.toFront()
+                                windowRef!!.requestFocus()
+                                windowRef!!.requestFocusInWindow()
+                            }
+                        }
+                        return@internalPrimaryAction
+                    }
+                }
                 requestHideExplicit()
             } else {
                 if (now - lastHiddenAt >= minHiddenDurationMs) {
@@ -638,6 +659,9 @@ private fun ApplicationScope.TrayAppImplOriginal(
         DisposableEffect(shouldShowWindow, dismissMode) {
             if (!shouldShowWindow) return@DisposableEffect onDispose { }
 
+            // Store window reference for Space detection on macOS
+            windowRef = window
+
             try { window.name = WindowVisibilityMonitor.TRAY_DIALOG_NAME } catch (_: Throwable) {}
             runCatching { WindowVisibilityMonitor.recompute() }
 
@@ -690,6 +714,7 @@ private fun ApplicationScope.TrayAppImplOriginal(
                 window.removeWindowFocusListener(focusListener)
                 macWatcher?.stop(); linuxWatcher?.stop(); windowsWatcher?.stop()
                 runCatching { WindowVisibilityMonitor.recompute() }
+                windowRef = null
             }
         }