src/cocoa/application.mm in reflexion-0.1.2 vs src/cocoa/application.mm in reflexion-0.1.3

@@ -1,20 +1,35 @@
 // -*- objc -*-
 #include "reflex/application.h"
 
 
 #import <Cocoa/Cocoa.h>
+#include <reflex/exception.h>
 #include "applicationdata.h"
 #import "cocoaapplication.h"
 
 
 namespace Reflex
 {
 
 
+	static Application* instance = NULL;
+
+
+	Application*
+	app ()
+	{
+		return instance;
+	}
+
+
 	Application::Application ()
 	{
+		if (instance) error("multiple application instance.");
+
+		instance = this;
+
 		self->this_ = this;
 		self->self_ = NSApp ? [NSApp retain] : nil;
 		if (self->self_)
 			[self->self_ setApplicationData: self];
 	}
@@ -25,9 +40,11 @@
 		{
 			[self->self_ release];
 			self->self_ = nil;
 		}
 		self->this_ = NULL;
+
+		instance = NULL;
 	}
 
 	bool
 	Application::run ()
 	{