/**

  * Back 2 Browser Bytecode Translator

  * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>

  *

  * This program 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, version 2 of the License.

  *

  * This program 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 program. Look for COPYING file in the top folder.

  * If not, see http://opensource.org/licenses/GPL-2.0.

  */

 package org.apidesign.bck2brwsr.vmtest.impl;

 import net.java.html.js.JavaScriptBody;

 import net.java.html.js.JavaScriptResource;

 /**

  *

  * @author Jaroslav Tulach <jtulach@netbeans.org>

  */

 @JavaScriptResource("htmlannotations.js")

 public class HtmlAnnotations {

     private Object callback;

     @JavaScriptBody(args = {}, body = "return 42;")

     public static int fourtyTwo() {

         return -1;

     }

     @JavaScriptBody(args = { "x", "y" }, body = "return mul(x, y);")

     public static native int useExternalMul(int x, int y);

     public static int callback() {

         final int[] arr = { 0 };

         callback(new Runnable() {

             @Override

             public void run() {

                 arr[0]++;

             }

         });

         return arr[0];

     }

     @JavaScriptBody(args = { "r" }, javacall=true, body = "r.@java.lang.Runnable::run()()")

     private static native void callback(Runnable r);

     @JavaScriptBody(args = {  }, javacall = true, body = "return @org.apidesign.bck2brwsr.vmtest.impl.HtmlAnnotations::callback()();")

     public static native int staticCallback();

     protected long chooseLong(boolean takeFirst, boolean takeSecond, long first, long second) {

         long l = 0;

         if (takeFirst) l += first;

         if (takeSecond) l += second;

         return l;

     }

     protected void onError(Object obj) throws Exception {

         callback = obj;

     }

     Object getError() {

         return callback;

     }

     public static Object create() {

         return new HtmlAnnotations();

     }

     @JavaScriptBody(args = { "impl", "a", "b" }, javacall = true, body = 

         "return impl.@org.apidesign.bck2brwsr.vmtest.impl.HtmlAnnotations::chooseLong(ZZJJ)(true, false, a, b);"

     )

     public static native long first(Object impl, long a, long b);

     @JavaScriptBody(args = { "impl", "d" }, javacall = true, body = 

         "impl.@org.apidesign.bck2brwsr.vmtest.impl.HtmlAnnotations::onError(Ljava/lang/Object;)(d);" +

         "return impl.@org.apidesign.bck2brwsr.vmtest.impl.HtmlAnnotations::getError()();"

     )

     public static native Double onError(Object impl, Double d);

 }