jaroslav@1189: /**
jaroslav@1189:  * HTML via Java(tm) Language Bindings
jaroslav@1189:  * Copyright (C) 2013 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
jaroslav@1189:  *
jaroslav@1189:  * This program is free software: you can redistribute it and/or modify
jaroslav@1189:  * it under the terms of the GNU General Public License as published by
jaroslav@1189:  * the Free Software Foundation, version 2 of the License.
jaroslav@1189:  *
jaroslav@1189:  * This program is distributed in the hope that it will be useful,
jaroslav@1189:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
jaroslav@1189:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
jaroslav@1189:  * GNU General Public License for more details. apidesign.org
jaroslav@1189:  * designates this particular file as subject to the
jaroslav@1189:  * "Classpath" exception as provided by apidesign.org
jaroslav@1189:  * in the License file that accompanied this code.
jaroslav@1189:  *
jaroslav@1189:  * You should have received a copy of the GNU General Public License
jaroslav@1189:  * along with this program. Look for COPYING file in the top folder.
jaroslav@1189:  * If not, see http://wiki.apidesign.org/wiki/GPLwithClassPathException
jaroslav@1189:  */
jaroslav@1189: package org.apidesign.html.ko2brwsr;
jaroslav@1189: 
jaroslav@1189: import java.util.ArrayList;
jaroslav@1189: import java.util.Collection;
jaroslav@1189: import java.util.Iterator;
jaroslav@1189: import org.apidesign.bck2brwsr.core.JavaScriptOnly;
jaroslav@1189: 
jaroslav@1189: /**
jaroslav@1189:  *
jaroslav@1189:  * @author Jaroslav Tulach <jtulach@netbeans.org>
jaroslav@1189:  */
jaroslav@1189: public final class KOList<T> extends ArrayList<T> {
jaroslav@1189:     private final String name;
jaroslav@1189:     private final String[] deps;
jaroslav@1189:     private Knockout model;
jaroslav@1189:     private Runnable onchange;
jaroslav@1189: 
jaroslav@1189:     public KOList(String name, String... deps) {
jaroslav@1189:         this.name = name;
jaroslav@1189:         this.deps = deps;
jaroslav@1189:     }
jaroslav@1189:     
jaroslav@1189:     public void assign(Knockout model) {
jaroslav@1189:         if (this.model != model) {
jaroslav@1189:             this.model = model;
jaroslav@1189:             notifyChange();
jaroslav@1189:         }
jaroslav@1189:     }
jaroslav@1189:     
jaroslav@1189:     public KOList<T> onChange(Runnable r) {
jaroslav@1189:         if (this.onchange != null) {
jaroslav@1189:             throw new IllegalStateException();
jaroslav@1189:         }
jaroslav@1189:         this.onchange = r;
jaroslav@1189:         return this;
jaroslav@1189:     }
jaroslav@1189: 
jaroslav@1189:     @Override
jaroslav@1189:     public boolean add(T e) {
jaroslav@1189:         boolean ret = super.add(e);
jaroslav@1189:         notifyChange();
jaroslav@1189:         return ret;
jaroslav@1189:     }
jaroslav@1189: 
jaroslav@1189:     @Override
jaroslav@1189:     public boolean addAll(Collection<? extends T> c) {
jaroslav@1189:         boolean ret = super.addAll(c);
jaroslav@1189:         notifyChange();
jaroslav@1189:         return ret;
jaroslav@1189:     }
jaroslav@1189: 
jaroslav@1189:     @Override
jaroslav@1189:     public boolean addAll(int index, Collection<? extends T> c) {
jaroslav@1189:         boolean ret = super.addAll(index, c);
jaroslav@1189:         notifyChange();
jaroslav@1189:         return ret;
jaroslav@1189:     }
jaroslav@1189: 
jaroslav@1189:     @Override
jaroslav@1189:     public boolean remove(Object o) {
jaroslav@1189:         boolean ret = super.remove(o);
jaroslav@1189:         notifyChange();
jaroslav@1189:         return ret;
jaroslav@1189:     }
jaroslav@1189: 
jaroslav@1189:     @Override
jaroslav@1189:     public void clear() {
jaroslav@1189:         super.clear();
jaroslav@1189:         notifyChange();
jaroslav@1189:     }
jaroslav@1189: 
jaroslav@1189:     @Override
jaroslav@1189:     public boolean removeAll(Collection<?> c) {
jaroslav@1189:         boolean ret = super.removeAll(c);
jaroslav@1189:         notifyChange();
jaroslav@1189:         return ret;
jaroslav@1189:     }
jaroslav@1189: 
jaroslav@1189:     @Override
jaroslav@1189:     public boolean retainAll(Collection<?> c) {
jaroslav@1189:         boolean ret = super.retainAll(c);
jaroslav@1189:         notifyChange();
jaroslav@1189:         return ret;
jaroslav@1189:     }
jaroslav@1189: 
jaroslav@1189:     @Override
jaroslav@1189:     public T set(int index, T element) {
jaroslav@1189:         T ret = super.set(index, element);
jaroslav@1189:         notifyChange();
jaroslav@1189:         return ret;
jaroslav@1189:     }
jaroslav@1189: 
jaroslav@1189:     @Override
jaroslav@1189:     public void add(int index, T element) {
jaroslav@1189:         super.add(index, element);
jaroslav@1189:         notifyChange();
jaroslav@1189:     }
jaroslav@1189: 
jaroslav@1189:     @Override
jaroslav@1189:     public T remove(int index) {
jaroslav@1189:         T ret = super.remove(index);
jaroslav@1189:         notifyChange();
jaroslav@1189:         return ret;
jaroslav@1189:     }
jaroslav@1189: 
jaroslav@1189:     @Override
jaroslav@1189:     public String toString() {
jaroslav@1189:         Iterator<T> it = iterator();
jaroslav@1189:         if (!it.hasNext()) {
jaroslav@1189:             return "[]";
jaroslav@1189:         }
jaroslav@1189:         String sep = "";
jaroslav@1189:         StringBuilder sb = new StringBuilder();
jaroslav@1189:         sb.append('[');
jaroslav@1189:         while (it.hasNext()) {
jaroslav@1189:             T t = it.next();
jaroslav@1189:             sb.append(sep);
jaroslav@1189:             sb.append(ConvertTypes.toJSON(t));
jaroslav@1189:             sep = ",";
jaroslav@1189:         }
jaroslav@1189:         sb.append(']');
jaroslav@1189:         return sb.toString();
jaroslav@1189:     }
jaroslav@1189:     
jaroslav@1189:     
jaroslav@1189:     @JavaScriptOnly(name = "koArray", value = "function() { return this.toArray___3Ljava_lang_Object_2(); }")
jaroslav@1189:     private static native int koArray();
jaroslav@1189: 
jaroslav@1189:     private void notifyChange() {
jaroslav@1189:         Knockout m = model;
jaroslav@1189:         if (m != null) {
jaroslav@1189:             m.valueHasMutated(name);
jaroslav@1189:             for (String dependant : deps) {
jaroslav@1189:                 m.valueHasMutated(dependant);
jaroslav@1189:             }
jaroslav@1189:         }
jaroslav@1189:         Runnable r = onchange;
jaroslav@1189:         if (r != null) {
jaroslav@1189:             r.run();
jaroslav@1189:         }
jaroslav@1189:     }
jaroslav@1189: 
jaroslav@1189:     @Override
jaroslav@1189:     public KOList clone() {
jaroslav@1189:         KOList ko = (KOList)super.clone();
jaroslav@1189:         ko.model = null;
jaroslav@1189:         return ko;
jaroslav@1189:     }
jaroslav@1189:     
jaroslav@1189: }