/**

 * Back 2 Browser Bytecode Translator

 * Copyright (C) 2012-2015 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.htmlpage.api;

/** Controller created via {@link OnEvent#of(org.apidesign.bck2brwsr.htmlpage.api.Element[])}.

 *

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

 */

public final class OnController {

    private final Element[] arr;

    private final OnEvent event;

    OnController(OnEvent event, Element[] arr) {

        this.event = event;

        this.arr = arr;

    }

    /** Registers an event handler on associated {@link OnEvent}

     * and {@link Element}

     * 

     * @param handler the handler to be called when the event occurs

     */

    public void perform(final OnHandler handler) {

        for (Element e : arr) {

            e.on(event, handler);

        }

    }

    /** Registers a runnable to be performed on associated {@link OnEvent} 

     * and {@link Element}.

     * 

     * @see OnEvent#of

     */

    public void perform(final Runnable r) {

        class W implements OnHandler {

            @Override

            public void onEvent(Object event) throws Exception {

                r.run();

            }

        }

        perform(new W());

        OnHandler w = new W();

        for (Element e : arr) {

            e.on(event, w);

        }

    }

}