Create NSProcessInfoUtils.java

A sample by Remi Cartier showing how to interface with NSProcessInfo to solve the appnap problem.

Author: shannah

java/test/ca/weblite/objc/NSProcessInfoUtils.java

@@ -0,0 +1,38 @@
+import ca.weblite.objc.Client;
+import ca.weblite.objc.Proxy;
+
+/**
+ * Created by IntelliJ IDEA.
+ * User: remicartier (remi.cartier@gmail.com)
+ * Date: 2014-08-06
+ * Time: 8:13 PM
+ */
+public class NSProcessInfoUtils {
+
+    private final static long NSActivityUserInitiated = (0x00FFFFFFL | (1L << 20));
+
+    /**
+     * To ensure Mac OS X doesn't slow down your app because of App Nap, call this method 
+     * @param reason the reason for allowing the app to work at full speed
+     * @return the activity id as a Proxy object
+     */
+    public static Proxy beginActivityWithOptions(String reason) {
+
+        Client c = Client.getInstance();
+        Proxy processInfo = c.sendProxy("NSProcessInfo", "processInfo");
+        return processInfo.sendProxy("beginActivityWithOptions:reason:", NSActivityUserInitiated, reason);
+    }
+
+    /**
+     * When the activity is finished, to re-enable app napping call this method 
+     * @param activity previously returned by beginActivityWithOptions()
+     */
+    public static void endActivity(Proxy activity) {
+
+        if (activity != null) {
+            Client c = Client.getInstance();
+            Proxy processInfo = c.sendProxy("NSProcessInfo", "processInfo");
+            processInfo.send("endActivity:", activity);
+        }
+    }
+}