2 * Back 2 Browser Bytecode Translator
3 * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, version 2 of the License.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. Look for COPYING file in the top folder.
16 * If not, see http://opensource.org/licenses/GPL-2.0.
18 package org.apidesign.bck2brwsr.htmlpage.api;
20 import org.apidesign.bck2brwsr.core.JavaScriptBody;
22 /** Represents a generic HTML element.
24 * @author Jaroslav Tulach <jtulach@netbeans.org>
26 public abstract class Element {
27 private final String id;
29 public Element(String id) {
33 abstract void dontSubclass();
36 args={"el", "property", "value"},
37 body="var e = window.document.getElementById(el.fld_id);\n"
38 + "e[property] = value;\n"
40 static native void setAttribute(Element el, String property, Object value);
43 args={"el", "property"},
44 body="var e = window.document.getElementById(el.fld_id);\n"
45 + "return e[property];\n"
47 static native Object getAttribute(Element el, String property);
49 /** Executes given runnable when user performs a "click" on the given
51 * @param r the runnable to execute, never null
55 body="var e = window.document.getElementById(this.fld_id);\n"
56 + "e[ev.fld_id] = function() { r.run__V(); };\n"
58 final native void on(OnEvent ev, Runnable r);
60 /** Shows alert message dialog in a browser.
61 * @param msg the message to show
63 @JavaScriptBody(args = "msg", body = "alert(msg);")
64 public static native void alert(String msg);
66 /** Generic way to query any attribute of this element.
67 * @param property name of the attribute
69 public final Object getAttribute(String property) {
70 return getAttribute(this, property);
73 /** Generic way to change an attribute of this element.
75 * @param property name of the attribute
76 * @param value value to associate with the attribute
78 public final void setAttribute(String property, Object value) {
79 setAttribute(this, property, value);