Fix GUI focus: Remove makeAccessoryProcess entirely, use NSWindow level trick to float without activation

Source/Helper/HelperPluginHost.cpp

@@ -9,25 +9,22 @@
 #include <objc/message.h>
 #endif
 
-// Make helper an accessory app — can show windows but doesn't steal focus or appear in Dock
-static void makeAccessoryProcess()
-{
-#if JUCE_MAC
-    id nsApp = ((id(*)(id, SEL))objc_msgSend)((id)objc_getClass("NSApplication"),
-                                               sel_registerName("sharedApplication"));
-    // NSApplicationActivationPolicyAccessory = 1 (windows allowed, no Dock icon, no focus steal)
-    ((void(*)(id, SEL, long))objc_msgSend)(nsApp, sel_registerName("setActivationPolicy:"), 1);
-#endif
-}
-
-// Show window without stealing focus from Ableton
-static void showWindowWithoutFocus(juce::Component* window)
+// Show window as floating panel without activating this app or stealing focus
+static void showAsFloatingPanel(juce::Component* window)
 {
 #if JUCE_MAC
     if (auto* peer = window->getPeer())
     {
         auto* nsWindow = (id)peer->getNativeHandle();
-        // [nsWindow orderFrontRegardless] — shows window without activating the app
+
+        // Set window level to floating (above normal windows)
+        // NSFloatingWindowLevel = 3
+        ((void(*)(id, SEL, long))objc_msgSend)(nsWindow, sel_registerName("setLevel:"), 3);
+
+        // Don't hide on deactivate (stay visible when helper loses focus)
+        ((void(*)(id, SEL, int))objc_msgSend)(nsWindow, sel_registerName("setHidesOnDeactivate:"), 0);
+
+        // Show without activating this app
         ((void(*)(id, SEL))objc_msgSend)(nsWindow, sel_registerName("orderFrontRegardless"));
     }
 #endif
@@ -41,7 +38,6 @@ public:
         : DocumentWindow(name, juce::Colour(0xff1a1a2e), DocumentWindow::allButtons, true)
     {
         setUsingNativeTitleBar(true);
-        setAlwaysOnTop(true);
     }
 
     void closeButtonPressed() override
@@ -277,14 +273,11 @@ void HelperPluginHost::showGui()
     {
         if (!plugin) return;
 
-        // Set as accessory app — allows windows without stealing focus
-        makeAccessoryProcess();
-
         // If window exists but hidden, just show it
         if (guiWindow)
         {
             guiWindow->setVisible(true);
-            showWindowWithoutFocus(guiWindow.get());
+            showAsFloatingPanel(guiWindow.get());
             return;
         }
 
@@ -297,8 +290,8 @@ void HelperPluginHost::showGui()
         guiWindow->centreWithSize(editor->getWidth(), editor->getHeight());
         guiWindow->setVisible(true);
 
-        // Show without stealing focus from Ableton
-        showWindowWithoutFocus(guiWindow.get());
+        // Make it float without stealing focus
+        showAsFloatingPanel(guiWindow.get());
     });
 }