[UI] FullScreen mode for Mac OS clients

Mage.Client/src/main/java/mage/client/util/SystemUtil.java

@@ -0,0 +1,38 @@
+package mage.client.util;
+
+import java.awt.*;
+import java.lang.reflect.Method;
+
+/**
+ * @author noxx
+ */
+public class SystemUtil {
+
+    public static final String OS_NAME = "os.name";
+    public static final String MAC_OS_X = "Mac OS X";
+
+    private SystemUtil() {
+    }
+
+    public static boolean isMacOSX() {
+        return System.getProperty(OS_NAME).contains(MAC_OS_X);
+    }
+
+    public static void enableMacOSFullScreenMode(Window window) {
+        String className = "com.apple.eawt.FullScreenUtilities";
+        String methodName = "setWindowCanFullScreen";
+
+        try {
+            Class<?> clazz = Class.forName(className);
+            Method method = clazz.getMethod(methodName, Window.class, boolean.class);
+            method.invoke(null, window, true);
+        } catch (Throwable t) {
+            System.err.println("Full screen mode is not supported");
+            t.printStackTrace();
+        }
+    }
+
+    public static void main(String... args) {
+        System.out.println(isMacOSX());
+    }
+}