/**

  * 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.htmlpage.api;

 import org.apidesign.bck2brwsr.core.JavaScriptBody;

 /** Represents a generic HTML element.

  *

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

  */

 public abstract class Element {

     private final String id;

     public Element(String id) {

         this.id = id;

     }

     abstract void dontSubclass();

     @JavaScriptBody(

         args={"el", "property", "value"},

         body="var e = window.document.getElementById(el.fld_id);\n"

            + "e[property] = value;\n"

     )

     static void setAttribute(Element el, String property, Object value) {

         throw new UnsupportedOperationException("Needs JavaScript!");

     }

     @JavaScriptBody(

         args={"el", "property"},

         body="var e = window.document.getElementById(el.fld_id);\n"

            + "return e[property];\n"

     )

     static Object getAttribute(Element el, String property) {

         throw new UnsupportedOperationException("Needs JavaScript!");

     }

     /** Executes given runnable when user performs a "click" on the given

      * element.

      * @param r the runnable to execute, never null

      */

     @JavaScriptBody(

         args={"el", "r"},

         body="var e = window.document.getElementById(el.fld_id);\n"

            + "e.onclick = function() { r.run__V(); };\n"

     )

     public final void addOnClick(Runnable r) {

         throw new UnsupportedOperationException("Needs JavaScript!");

     }

 }