Implement support for grabbing the keyboard when in full screen mode.
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4449 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/vncviewer/cocoa.mm b/vncviewer/cocoa.mm
new file mode 100644
index 0000000..589da2d
--- /dev/null
+++ b/vncviewer/cocoa.mm
@@ -0,0 +1,69 @@
+/* Copyright 2011 Pierre Ossman <ossman@cendio.se> for Cendio AB
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+ * USA.
+ */
+
+#include <FL/Fl.H>
+#include <FL/Fl_Window.H>
+#include <FL/x.H>
+
+#import <Cocoa/Cocoa.h>
+
+int cocoa_capture_display(Fl_Window *win)
+{
+ NSWindow *nsw;
+
+ nsw = (NSWindow*)fl_xid(win);
+
+ // Already captured?
+ if ([nsw level] == CGShieldingWindowLevel())
+ return 0;
+
+ if (CGDisplayCapture(kCGDirectMainDisplay) != kCGErrorSuccess)
+ return 1;
+
+ [nsw setLevel:CGShieldingWindowLevel()];
+
+ return 0;
+}
+
+void cocoa_release_display(Fl_Window *win)
+{
+ NSWindow *nsw;
+ int newlevel;
+
+ CGDisplayRelease(kCGDirectMainDisplay);
+
+ nsw = (NSWindow*)fl_xid(win);
+
+ // Someone else has already changed the level of this window
+ if ([nsw level] != CGShieldingWindowLevel())
+ return;
+
+ // FIXME: Store the previous level somewhere so we don't have to hard
+ // code a level here.
+#ifdef HAVE_FLTK_FULLSCREEN
+ if (win->fullscreen_active() && win->contains(Fl::focus()))
+ newlevel = NSStatusWindowLevel;
+ else
+#endif
+ newlevel = NSNormalWindowLevel;
+
+ // Only change if different as the level change also moves the window
+ // to the top of that level.
+ if ([nsw level] != newlevel)
+ [nsw setLevel:newlevel];
+}