1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/ko-bck2brwsr/src/main/java/org/apidesign/html/ko2brwsr/KOList.java Mon Apr 29 12:50:19 2013 +0200
1.3 @@ -0,0 +1,170 @@
1.4 +/**
1.5 + * HTML via Java(tm) Language Bindings
1.6 + * Copyright (C) 2013 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
1.7 + *
1.8 + * This program is free software: you can redistribute it and/or modify
1.9 + * it under the terms of the GNU General Public License as published by
1.10 + * the Free Software Foundation, version 2 of the License.
1.11 + *
1.12 + * This program is distributed in the hope that it will be useful,
1.13 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
1.14 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1.15 + * GNU General Public License for more details. apidesign.org
1.16 + * designates this particular file as subject to the
1.17 + * "Classpath" exception as provided by apidesign.org
1.18 + * in the License file that accompanied this code.
1.19 + *
1.20 + * You should have received a copy of the GNU General Public License
1.21 + * along with this program. Look for COPYING file in the top folder.
1.22 + * If not, see http://wiki.apidesign.org/wiki/GPLwithClassPathException
1.23 + */
1.24 +package org.apidesign.html.ko2brwsr;
1.25 +
1.26 +import java.util.ArrayList;
1.27 +import java.util.Collection;
1.28 +import java.util.Iterator;
1.29 +import org.apidesign.bck2brwsr.core.JavaScriptOnly;
1.30 +
1.31 +/**
1.32 + *
1.33 + * @author Jaroslav Tulach <jtulach@netbeans.org>
1.34 + */
1.35 +public final class KOList<T> extends ArrayList<T> {
1.36 + private final String name;
1.37 + private final String[] deps;
1.38 + private Knockout model;
1.39 + private Runnable onchange;
1.40 +
1.41 + public KOList(String name, String... deps) {
1.42 + this.name = name;
1.43 + this.deps = deps;
1.44 + }
1.45 +
1.46 + public void assign(Knockout model) {
1.47 + if (this.model != model) {
1.48 + this.model = model;
1.49 + notifyChange();
1.50 + }
1.51 + }
1.52 +
1.53 + public KOList<T> onChange(Runnable r) {
1.54 + if (this.onchange != null) {
1.55 + throw new IllegalStateException();
1.56 + }
1.57 + this.onchange = r;
1.58 + return this;
1.59 + }
1.60 +
1.61 + @Override
1.62 + public boolean add(T e) {
1.63 + boolean ret = super.add(e);
1.64 + notifyChange();
1.65 + return ret;
1.66 + }
1.67 +
1.68 + @Override
1.69 + public boolean addAll(Collection<? extends T> c) {
1.70 + boolean ret = super.addAll(c);
1.71 + notifyChange();
1.72 + return ret;
1.73 + }
1.74 +
1.75 + @Override
1.76 + public boolean addAll(int index, Collection<? extends T> c) {
1.77 + boolean ret = super.addAll(index, c);
1.78 + notifyChange();
1.79 + return ret;
1.80 + }
1.81 +
1.82 + @Override
1.83 + public boolean remove(Object o) {
1.84 + boolean ret = super.remove(o);
1.85 + notifyChange();
1.86 + return ret;
1.87 + }
1.88 +
1.89 + @Override
1.90 + public void clear() {
1.91 + super.clear();
1.92 + notifyChange();
1.93 + }
1.94 +
1.95 + @Override
1.96 + public boolean removeAll(Collection<?> c) {
1.97 + boolean ret = super.removeAll(c);
1.98 + notifyChange();
1.99 + return ret;
1.100 + }
1.101 +
1.102 + @Override
1.103 + public boolean retainAll(Collection<?> c) {
1.104 + boolean ret = super.retainAll(c);
1.105 + notifyChange();
1.106 + return ret;
1.107 + }
1.108 +
1.109 + @Override
1.110 + public T set(int index, T element) {
1.111 + T ret = super.set(index, element);
1.112 + notifyChange();
1.113 + return ret;
1.114 + }
1.115 +
1.116 + @Override
1.117 + public void add(int index, T element) {
1.118 + super.add(index, element);
1.119 + notifyChange();
1.120 + }
1.121 +
1.122 + @Override
1.123 + public T remove(int index) {
1.124 + T ret = super.remove(index);
1.125 + notifyChange();
1.126 + return ret;
1.127 + }
1.128 +
1.129 + @Override
1.130 + public String toString() {
1.131 + Iterator<T> it = iterator();
1.132 + if (!it.hasNext()) {
1.133 + return "[]";
1.134 + }
1.135 + String sep = "";
1.136 + StringBuilder sb = new StringBuilder();
1.137 + sb.append('[');
1.138 + while (it.hasNext()) {
1.139 + T t = it.next();
1.140 + sb.append(sep);
1.141 + sb.append(ConvertTypes.toJSON(t));
1.142 + sep = ",";
1.143 + }
1.144 + sb.append(']');
1.145 + return sb.toString();
1.146 + }
1.147 +
1.148 +
1.149 + @JavaScriptOnly(name = "koArray", value = "function() { return this.toArray___3Ljava_lang_Object_2(); }")
1.150 + private static native int koArray();
1.151 +
1.152 + private void notifyChange() {
1.153 + Knockout m = model;
1.154 + if (m != null) {
1.155 + m.valueHasMutated(name);
1.156 + for (String dependant : deps) {
1.157 + m.valueHasMutated(dependant);
1.158 + }
1.159 + }
1.160 + Runnable r = onchange;
1.161 + if (r != null) {
1.162 + r.run();
1.163 + }
1.164 + }
1.165 +
1.166 + @Override
1.167 + public KOList clone() {
1.168 + KOList ko = (KOList)super.clone();
1.169 + ko.model = null;
1.170 + return ko;
1.171 + }
1.172 +
1.173 +}