/**

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  * General Public License Version 2 only ("GPL") or the Common

  * Development and Distribution License("CDDL") (collectively, the

  * "License"). You may not use this file except in compliance with the

  * License. You can obtain a copy of the License at

  * http://www.netbeans.org/cddl-gplv2.html

  * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the

  * specific language governing permissions and limitations under the

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  * particular file as subject to the "Classpath" exception as provided

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  * License Header, with the fields enclosed by brackets [] replaced by

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  * Contributor(s):

  *

  * The Original Software is NetBeans. The Initial Developer of the Original

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 package org.apidesign.html.json.spi;

 import net.java.html.BrwsrCtx;

 import net.java.html.json.Function;

 import net.java.html.json.Model;

 /** Describes a function provided by the {@link Model} and 

  * annotated by {@link Function} annotation.

  *

  * @author Jaroslav Tulach

  */

 public abstract class FunctionBinding {

     FunctionBinding() {

     }

     /** Returns name of the function.

      * @return function name

      */

     public abstract String getFunctionName();

     /**

      * Calls the function provided data associated with current element, as well

      * as information about the event that triggered the event.

      *

      * @param data data associated with selected element

      * @param ev event (with additional properties) that triggered the event

      */

     public abstract void call(Object data, Object ev);

     static <M> FunctionBinding registerFunction(String name, int index, M model, Proto.Type<M> access) {

         return new Impl<M>(name, index, model, access);

     }

     private static final class Impl<M> extends FunctionBinding {

         final String name;

         private final M model;

         private final Proto.Type<M> access;

         private final int index;

         public Impl(String name, int index, M model, Proto.Type<M> access) {

             this.name = name;

             this.index = index;

             this.model = model;

             this.access = access;

         }

         @Override

         public String getFunctionName() {

             return name;

         }

         @Override

         public void call(final Object data, final Object ev) {

             BrwsrCtx ctx = access.protoFor(model).getContext();

             class Dispatch implements Runnable {

                 @Override

                 public void run() {

                     try {

                         access.call(model, index, data, ev);

                     } catch (Throwable ex) {

                         ex.printStackTrace();

                     }

                 }

             }

             ctx.execute(new Dispatch());

         }

     }

 }