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;
20 import org.apidesign.bck2brwsr.core.ExtraJavaScript;
21 import org.apidesign.bck2brwsr.core.JavaScriptBody;
23 /** Provides binding between models and
25 * @author Jaroslav Tulach <jtulach@netbeans.org>
27 @ExtraJavaScript(resource = "org/apidesign/bck2brwsr/htmlpage/knockout-2.2.1.js")
28 public class Knockout {
35 public static <M> Knockout applyBindings(
36 Class<M> modelClass, M model, String[] propsGettersAndSetters
38 Knockout bindings = next;
40 if (bindings == null) {
41 bindings = new Knockout();
43 for (int i = 0; i < propsGettersAndSetters.length; i += 3) {
44 bind(bindings, model, propsGettersAndSetters[i],
45 propsGettersAndSetters[i + 1],
46 propsGettersAndSetters[i + 2]
49 applyBindings(bindings);
53 @JavaScriptBody(args = { "prop" }, body =
54 "this[prop].valueHasMutated();"
56 public void valueHasMutated(String prop) {
59 @JavaScriptBody(args = { "bindings", "model", "prop", "getter", "setter" }, body =
61 + " read: function() {\n"
62 + " var v = model[getter]();\n"
65 + " owner: bindings\n"
67 + "if (setter != null) {\n"
68 + " bnd.write = function(val) {\n"
69 + " model[setter](new Number(val));\n"
72 + "bindings[prop] = ko.computed(bnd);"
74 private static void bind(
75 Object bindings, Object model, String prop, String getter, String setter
79 @JavaScriptBody(args = { "bindings" }, body = "ko.applyBindings(bindings);")
80 private static void applyBindings(Object bindings) {}