Make CoreFoundation event dispatcher available on OS X also

CoreFoundation event dispatcher on OS X can help users working with
QtBluetooth from either non-GUI threads or non-GUI applications.

Change-Id: Ie0793e7f49074a8ea9059251cd7c9bdf7953c206
Task-number: QTBUG-48758
Task-number: QTBUG-46625
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@theqtcompany.com>

src/corelib/kernel/kernel.pri

@@ -101,7 +101,8 @@ winrt {
 mac {
     HEADERS += \
         kernel/qcfsocketnotifier_p.h \
-        kernel/qcore_mac_p.h
+        kernel/qcore_mac_p.h \
+        kernel/qeventdispatcher_cf_p.h
 
     SOURCES += \
         kernel/qcfsocketnotifier.cpp \
@@ -109,18 +110,14 @@ mac {
         kernel/qcore_mac.cpp
 
     OBJECTIVE_SOURCES += \
-        kernel/qcore_mac_objc.mm
+        kernel/qcore_mac_objc.mm \
+        kernel/qeventdispatcher_cf.mm
 
     LIBS_PRIVATE += -framework Foundation
 
-    osx: LIBS_PRIVATE += -framework CoreServices
+    osx: LIBS_PRIVATE += -framework CoreServices -framework AppKit
 
     ios {
-        OBJECTIVE_SOURCES += \
-                kernel/qeventdispatcher_cf.mm
-        HEADERS += \
-                kernel/qeventdispatcher_cf_p.h
-
         # We need UIKit for UIDevice
         LIBS_PRIVATE += -framework UIKit
     }

src/corelib/kernel/qeventdispatcher_cf.mm

@@ -43,7 +43,11 @@
 
 #include <limits>
 
-#include <UIKit/UIApplication.h>
+#ifdef Q_OS_OSX
+#  include <AppKit/NSApplication.h>
+#else
+#  include <UIKit/UIApplication.h>
+#endif
 
 @interface RunLoopModeTracker : NSObject {
     QStack<CFStringRef> m_runLoopModes;
@@ -61,7 +65,11 @@
             addObserver:self
             selector:@selector(receivedNotification:)
             name:nil
+#ifdef Q_OS_OSX
+            object:[NSApplication sharedApplication]];
+#else
             object:[UIApplication sharedApplication]];
+#endif
     }
 
     return self;