Better (from a static compilation point of view) to let JavaScript call the basic (non-private) getter and do conversion then
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 java.lang.reflect.Method;
21 import java.util.List;
22 import org.apidesign.bck2brwsr.core.ExtraJavaScript;
23 import org.apidesign.bck2brwsr.core.JavaScriptBody;
25 /** Provides binding between models and
27 * @author Jaroslav Tulach <jtulach@netbeans.org>
29 @ExtraJavaScript(resource = "/org/apidesign/bck2brwsr/htmlpage/knockout-2.2.1.js")
30 public class Knockout {
37 public static <M> Knockout applyBindings(
38 Class<M> modelClass, M model, String[] propsGettersAndSetters,
39 String[] methodsAndSignatures
41 Knockout bindings = next;
43 if (bindings == null) {
44 bindings = new Knockout();
46 for (int i = 0; i < propsGettersAndSetters.length; i += 4) {
48 Method getter = modelClass.getMethod(propsGettersAndSetters[i + 3]);
49 bind(bindings, model, propsGettersAndSetters[i],
50 propsGettersAndSetters[i + 1],
51 propsGettersAndSetters[i + 2],
52 getter.getReturnType().isPrimitive(),
53 List.class.isAssignableFrom(getter.getReturnType())
55 } catch (NoSuchMethodException ex) {
56 throw new IllegalStateException(ex.getMessage());
59 for (int i = 0; i < methodsAndSignatures.length; i += 2) {
61 bindings, model, methodsAndSignatures[i], methodsAndSignatures[i + 1]
64 applyBindings(bindings);
68 @JavaScriptBody(args = { "prop" }, body =
69 "this[prop].valueHasMutated();"
71 public void valueHasMutated(String prop) {
75 @JavaScriptBody(args = { "id", "ev" }, body = "ko.utils.triggerEvent(window.document.getElementById(id), ev.substring(2));")
76 public static void triggerEvent(String id, String ev) {
79 @JavaScriptBody(args = { "bindings", "model", "prop", "getter", "setter", "primitive", "array" }, body =
81 + " 'read': function() {\n"
82 + " var v = model[getter]();\n"
83 + " if (array) v = v.koArray();\n"
86 + " 'owner': bindings\n"
88 + "if (setter != null) {\n"
89 + " bnd['write'] = function(val) {\n"
90 + " model[setter](primitive ? new Number(val) : val);\n"
93 + "bindings[prop] = ko['computed'](bnd);"
95 private static void bind(
96 Object bindings, Object model, String prop, String getter, String setter, boolean primitive, boolean array
100 @JavaScriptBody(args = { "bindings", "model", "prop", "sig" }, body =
101 "bindings[prop] = function(data, ev) { model[sig](data, ev); };"
103 private static void expose(
104 Object bindings, Object model, String prop, String sig
108 @JavaScriptBody(args = { "bindings" }, body = "ko.applyBindings(bindings);")
109 private static void applyBindings(Object bindings) {}