Fix TrayApp opening on wrong Space (macOS)

maclib/tray.swift

@@ -412,4 +412,16 @@ public func tray_get_status_item_region_for(
     let midX   = screen.frame.midX
     let region = rect.minX < midX ? "top-left" : "top-right"
     return strdup(region)
+}
+
+// MARK: - Spaces / Virtual Desktop support
+
+/// Sets NSWindowCollectionBehavior.moveToActiveSpace on all app windows
+/// so that showing a window moves it to the current Space instead of
+/// switching back to the Space where it was originally created.
+@_cdecl("tray_set_windows_move_to_active_space")
+public func tray_set_windows_move_to_active_space() {
+    for window in NSApp.windows {
+        window.collectionBehavior.insert(.moveToActiveSpace)
+    }
 }

src/commonMain/kotlin/com/kdroid/composetray/lib/mac/MacOsWindowManager.kt

@@ -29,18 +29,6 @@ interface Foundation : Library {
 
 class MacOSWindowManager {
 
-    companion object {
-        // Constants for NSApplication activation policies
-        const val NSApplicationActivationPolicyRegular = 0L
-        const val NSApplicationActivationPolicyAccessory = 1L
-        const val NSApplicationActivationPolicyProhibited = 2L
-
-        // Constants for window levels
-        const val NSNormalWindowLevel = 0L
-        const val NSFloatingWindowLevel = 3L
-        const val NSModalPanelWindowLevel = 8L
-    }
-
     // Detect platform once
     private val isMacOs: Boolean = getOperatingSystem() == OperatingSystem.MACOS
 
@@ -206,5 +194,51 @@ class MacOSWindowManager {
         return getNSApplication() != null
     }
 
+    /**
+     * Configure an AWT window so that macOS moves it to the active Space
+     * when it is ordered front, instead of switching back to the Space
+     * where the window was originally created.
+     */
+    fun setMoveToActiveSpace(awtWindow: java.awt.Window): Boolean {
+        if (!isMacOs) return false
+        val localObjc = objc ?: return false
+        return try {
+            val viewPtr = Native.getComponentID(awtWindow)
+            if (viewPtr == 0L) return false
+
+            val nsView = Pointer(viewPtr)
+            val windowSel = localObjc.sel_registerName("window")
+            val nsWindow = localObjc.objc_msgSend(nsView, windowSel)
+            if (nsWindow == Pointer.NULL) return false
+
+            // Read current collectionBehavior and add moveToActiveSpace (1 << 1)
+            val getCollSel = localObjc.sel_registerName("collectionBehavior")
+            val current = Pointer.nativeValue(localObjc.objc_msgSend(nsWindow, getCollSel))
+            val setCollSel = localObjc.sel_registerName("setCollectionBehavior:")
+            localObjc.objc_msgSend(nsWindow, setCollSel, current or NSWindowCollectionBehaviorMoveToActiveSpace)
+
+            debugln { "Window configured to move to active Space" }
+            true
+        } catch (e: Throwable) {
+            debugln { "Failed to set moveToActiveSpace: ${e.message}" }
+            false
+        }
+    }
+
+    companion object {
+        // Constants for NSApplication activation policies
+        const val NSApplicationActivationPolicyRegular = 0L
+        const val NSApplicationActivationPolicyAccessory = 1L
+        const val NSApplicationActivationPolicyProhibited = 2L
+
+        // Constants for window levels
+        const val NSNormalWindowLevel = 0L
+        const val NSFloatingWindowLevel = 3L
+        const val NSModalPanelWindowLevel = 8L
+
+        // NSWindowCollectionBehavior
+        const val NSWindowCollectionBehaviorMoveToActiveSpace = 2L // 1 << 1
+    }
+
 }
 

src/commonMain/kotlin/com/kdroid/composetray/lib/mac/MacTrayManager.kt

@@ -349,6 +349,8 @@ internal class MacTrayManager(
 
         @JvmStatic external fun tray_get_status_item_region(): String?
         @JvmStatic external fun tray_get_status_item_region_for(tray: MacTray): String?
+
+        @JvmStatic external fun tray_set_windows_move_to_active_space()
     }
 
     // Structure for a menu item

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

@@ -25,6 +25,7 @@ import androidx.compose.ui.window.*
 import com.kdroid.composetray.lib.linux.LinuxOutsideClickWatcher
 import com.kdroid.composetray.lib.mac.MacOSWindowManager
 import com.kdroid.composetray.lib.mac.MacOutsideClickWatcher
+import com.kdroid.composetray.lib.mac.MacTrayLoader
 import com.kdroid.composetray.lib.windows.WindowsOutsideClickWatcher
 import com.kdroid.composetray.menu.api.TrayMenuBuilder
 import com.kdroid.composetray.utils.*
@@ -620,6 +621,11 @@ private fun ApplicationScope.TrayAppImplOriginal(
             runCatching { WindowVisibilityMonitor.recompute() }
 
             invokeLater {
+                // Move the popup to the current Space before bringing it to front (macOS)
+                if (getOperatingSystem() == MACOS) {
+                    runCatching { MacTrayLoader.lib.tray_set_windows_move_to_active_space() }
+                    runCatching { MacOSWindowManager().setMoveToActiveSpace(window) }
+                }
                 runCatching {
                     window.toFront()
                     window.requestFocus()