merged: r35545,r35546 from trunk:

added: [osx] Cocoa_ShowCursor to complement Cocoa_HideCursor (cherry picked from commit 1762b2e9e8fa8ff59bbf222d2a99cbbe2dc2e99b)
fixed: Ensure the mouse cursor is really hidden when in fullscreen (and that it comes back again when not).  Ideally this can be cleaned up once we move away from SDL (cherry picked from commit ed432147a55fd8b4057824e716cadd5302e90fb5)

git-svn-id: https://xbmc.svn.sourceforge.net/svnroot/xbmc/branches/Dharma@35551 568bbfeb-2a22-0410-94d2-cc84cf5bfa90

xbmc/Application.cpp

@@ -4685,6 +4685,16 @@ void CApplication::ProcessSlow()
 {
   g_powerManager.ProcessEvents();
 
+#if defined(__APPLE__)
+  // There is an issue on OS X that several system services ask the cursor to become visible
+  // during their startup routines.  Given that we can't control this, we hack it in by
+  // forcing the
+  if (g_Windowing.IsFullScreen())
+  { // SDL thinks it's hidden
+    Cocoa_HideMouse();
+  }
+#endif
+
   // Store our file state for use on close()
   UpdateFileState();
 

xbmc/WinEventsSDL.cpp

@@ -28,6 +28,9 @@
 #endif
 #include "MouseStat.h"
 #include "WindowingFactory.h"
+#if defined(__APPLE__)
+#include "osx/CocoaInterface.h"
+#endif
 
 #ifdef HAS_SDL_WIN_EVENTS
 
@@ -149,6 +152,11 @@ bool CWinEventsSDL::MessagePump()
         if (0 == (SDL_GetAppState() & SDL_APPMOUSEFOCUS))
         {
           g_Mouse.SetActive(false);
+#if defined(__APPLE__)
+          // See CApplication::ProcessSlow() for a description as to why we call Cocoa_HideMouse.
+          // this is here to restore the pointer when toggling back to window mode from fullscreen.
+          Cocoa_ShowMouse();
+#endif
           break;
         }
         XBMC_Event newEvent;

xbmc/osx/CocoaInterface.h

@@ -71,6 +71,7 @@ extern "C"
   // Mouse.
   //
   void Cocoa_HideMouse();
+  void Cocoa_ShowMouse();
   void Cocoa_HideDock();
 
   // Smart folders.

xbmc/osx/CocoaInterface.mm

@@ -421,6 +421,11 @@ void Cocoa_HideMouse()
   [NSCursor hide];
 }
 
+void Cocoa_ShowMouse()
+{
+  [NSCursor unhide];
+}
+
 void Cocoa_HideDock()
 {
   // Find which display we are on