added a property flag to audio plugin windows so that the JucePlugin_EditorRequiresKeyboardFocus flag only stops the main plugin window from getting focus, and not other pop-up windows that it might create.

build/macosx/platform_specific_code/juce_mac_NSViewComponentPeer.mm

@@ -1455,7 +1455,8 @@ bool NSViewComponentPeer::canBecomeKeyWindow()
 {
     // If running as a plugin, let the component decide whether it's going to allow the window to get focused.
     return JUCEApplication::getInstance() != 0
-            || (isValidPeer (this) && getComponent()->getWantsKeyboardFocus());
+            || (isValidPeer (this) 
+                && ! getComponent()->getComponentPropertyBool ("juce_disallowFocus", false, false));
 }
 
 bool NSViewComponentPeer::windowShouldClose()

extras/audio plugins/wrapper/AU/juce_AU_Wrapper.mm

@@ -922,6 +922,7 @@ public:
 #if ! JucePlugin_EditorRequiresKeyboardFocus
         setWantsKeyboardFocus (false);
 #else
+        setComponentProperty ("juce_disallowFocus", true);
         setWantsKeyboardFocus (true);
 #endif
     }

extras/audio plugins/wrapper/RTAS/juce_RTAS_Wrapper.cpp

@@ -336,6 +336,7 @@ public:
 #if JucePlugin_EditorRequiresKeyboardFocus
                 setWantsKeyboardFocus (true);
 #else
+                setComponentProperty ("juce_disallowFocus", true);
                 setWantsKeyboardFocus (false);
 #endif
                 setOpaque (true);

extras/audio plugins/wrapper/VST/juce_VST_Wrapper.cpp

@@ -274,6 +274,10 @@ public:
         editor->setTopLeftPosition (0, 0);
         addAndMakeVisible (editor);
 
+#if ! JucePlugin_EditorRequiresKeyboardFocus
+        setComponentProperty ("juce_disallowFocus", true);
+#endif
+        
 #if JUCE_WIN32
         addMouseListener (this, true);
 #endif

juce_amalgamated.cpp

@@ -269626,7 +269626,8 @@ bool NSViewComponentPeer::canBecomeKeyWindow()
 {
     // If running as a plugin, let the component decide whether it's going to allow the window to get focused.
     return JUCEApplication::getInstance() != 0
-            || (isValidPeer (this) && getComponent()->getWantsKeyboardFocus());
+            || (isValidPeer (this)
+                && ! getComponent()->getComponentPropertyBool ("juce_disallowFocus", false, false));
 }
 
 bool NSViewComponentPeer::windowShouldClose()