jaroslav@761: /**
jaroslav@761:  * Back 2 Browser Bytecode Translator
jaroslav@761:  * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
jaroslav@761:  *
jaroslav@761:  * This program is free software: you can redistribute it and/or modify
jaroslav@761:  * it under the terms of the GNU General Public License as published by
jaroslav@761:  * the Free Software Foundation, version 2 of the License.
jaroslav@761:  *
jaroslav@761:  * This program is distributed in the hope that it will be useful,
jaroslav@761:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
jaroslav@761:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
jaroslav@761:  * GNU General Public License for more details.
jaroslav@761:  *
jaroslav@761:  * You should have received a copy of the GNU General Public License
jaroslav@761:  * along with this program. Look for COPYING file in the top folder.
jaroslav@761:  * If not, see http://opensource.org/licenses/GPL-2.0.
jaroslav@761:  */
jaroslav@761: package org.apidesign.bck2brwsr.htmlpage;
jaroslav@761: 
jaroslav@976: import java.lang.reflect.InvocationTargetException;
jaroslav@976: import java.lang.reflect.Method;
jaroslav@761: import java.util.ArrayList;
jaroslav@761: import java.util.Collection;
jaroslav@921: import java.util.Iterator;
jaroslav@976: import java.util.logging.Level;
jaroslav@976: import java.util.logging.Logger;
jaroslav@887: import org.apidesign.bck2brwsr.core.JavaScriptOnly;
jaroslav@761: 
jaroslav@761: /**
jaroslav@761:  *
jaroslav@761:  * @author Jaroslav Tulach <jtulach@netbeans.org>
jaroslav@761:  */
jaroslav@761: public final class KOList<T> extends ArrayList<T> {
jaroslav@761:     private final String name;
jaroslav@761:     private final String[] deps;
jaroslav@761:     private Knockout model;
jaroslav@950:     private Runnable onchange;
jaroslav@761: 
jaroslav@761:     public KOList(String name, String... deps) {
jaroslav@761:         this.name = name;
jaroslav@761:         this.deps = deps;
jaroslav@761:     }
jaroslav@761:     
jaroslav@761:     public void assign(Knockout model) {
jaroslav@955:         if (this.model != model) {
jaroslav@955:             this.model = model;
jaroslav@955:             notifyChange();
jaroslav@955:         }
jaroslav@761:     }
jaroslav@950:     
jaroslav@950:     public KOList<T> onChange(Runnable r) {
jaroslav@950:         if (this.onchange != null) {
jaroslav@950:             throw new IllegalStateException();
jaroslav@950:         }
jaroslav@950:         this.onchange = r;
jaroslav@950:         return this;
jaroslav@950:     }
jaroslav@761: 
jaroslav@761:     @Override
jaroslav@761:     public boolean add(T e) {
jaroslav@761:         boolean ret = super.add(e);
jaroslav@761:         notifyChange();
jaroslav@761:         return ret;
jaroslav@761:     }
jaroslav@761: 
jaroslav@761:     @Override
jaroslav@928:     public boolean addAll(Collection<? extends T> c) {
jaroslav@928:         boolean ret = super.addAll(c);
jaroslav@928:         notifyChange();
jaroslav@928:         return ret;
jaroslav@928:     }
jaroslav@928: 
jaroslav@928:     @Override
jaroslav@928:     public boolean addAll(int index, Collection<? extends T> c) {
jaroslav@928:         boolean ret = super.addAll(index, c);
jaroslav@928:         notifyChange();
jaroslav@928:         return ret;
jaroslav@928:     }
jaroslav@928: 
jaroslav@928:     @Override
jaroslav@761:     public boolean remove(Object o) {
jaroslav@761:         boolean ret = super.remove(o);
jaroslav@761:         notifyChange();
jaroslav@761:         return ret;
jaroslav@761:     }
jaroslav@761: 
jaroslav@761:     @Override
jaroslav@761:     public void clear() {
jaroslav@761:         super.clear();
jaroslav@761:         notifyChange();
jaroslav@761:     }
jaroslav@761: 
jaroslav@761:     @Override
jaroslav@761:     public boolean removeAll(Collection<?> c) {
jaroslav@761:         boolean ret = super.removeAll(c);
jaroslav@761:         notifyChange();
jaroslav@761:         return ret;
jaroslav@761:     }
jaroslav@761: 
jaroslav@761:     @Override
jaroslav@761:     public boolean retainAll(Collection<?> c) {
jaroslav@761:         boolean ret = super.retainAll(c);
jaroslav@761:         notifyChange();
jaroslav@761:         return ret;
jaroslav@761:     }
jaroslav@761: 
jaroslav@761:     @Override
jaroslav@761:     public T set(int index, T element) {
jaroslav@761:         T ret = super.set(index, element);
jaroslav@761:         notifyChange();
jaroslav@761:         return ret;
jaroslav@761:     }
jaroslav@761: 
jaroslav@761:     @Override
jaroslav@761:     public void add(int index, T element) {
jaroslav@761:         super.add(index, element);
jaroslav@761:         notifyChange();
jaroslav@761:     }
jaroslav@761: 
jaroslav@761:     @Override
jaroslav@761:     public T remove(int index) {
jaroslav@761:         T ret = super.remove(index);
jaroslav@761:         notifyChange();
jaroslav@761:         return ret;
jaroslav@761:     }
jaroslav@921: 
jaroslav@921:     @Override
jaroslav@921:     public String toString() {
jaroslav@921:         Iterator<T> it = iterator();
jaroslav@921:         if (!it.hasNext()) {
jaroslav@921:             return "[]";
jaroslav@921:         }
jaroslav@921:         String sep = "";
jaroslav@921:         StringBuilder sb = new StringBuilder();
jaroslav@921:         sb.append('[');
jaroslav@921:         while (it.hasNext()) {
jaroslav@921:             T t = it.next();
jaroslav@921:             sb.append(sep);
jaroslav@921:             sb.append(ConvertTypes.toJSON(t));
jaroslav@921:             sep = ",";
jaroslav@921:         }
jaroslav@921:         sb.append(']');
jaroslav@921:         return sb.toString();
jaroslav@921:     }
jaroslav@887:     
jaroslav@887:     
jaroslav@887:     @JavaScriptOnly(name = "koArray", value = "function() { return this.toArray___3Ljava_lang_Object_2(); }")
jaroslav@887:     private static native int koArray();
jaroslav@971:     
jaroslav@971:     public Object koData() {
jaroslav@976:         Object[] arr = toArray();
jaroslav@976:         Method toKO = null;
jaroslav@976:         for (int i = 0; i < arr.length; i++) {
jaroslav@976:             if (arr[i] == null) {
jaroslav@976:                 continue;
jaroslav@976:             }
jaroslav@976:             if (toKO == null || toKO.getDeclaringClass() != arr[i].getClass()) {
jaroslav@976:                 try {
jaroslav@976:                     toKO = arr[i].getClass().getDeclaredMethod("koData");
jaroslav@976:                     toKO.setAccessible(true);
jaroslav@976:                 } catch (NoSuchMethodException ex) {
jaroslav@976:                     LOG.log(Level.FINE, "No koData conversion for " + arr[i], ex);
jaroslav@976:                     toKO = null;
jaroslav@976:                 }
jaroslav@976:             }
jaroslav@976:             if (toKO != null) {
jaroslav@976:                 try {
jaroslav@979:                     Object prev = arr[i];
jaroslav@976:                     arr[i] = toKO.invoke(arr[i]);
jaroslav@993:                     LOG.log(Level.FINER, "{0}th element {1} replaced by {2}", new Object[]{i, prev, arr[i]});
jaroslav@976:                 } catch (IllegalAccessException | InvocationTargetException ex) {
jaroslav@976:                     LOG.log(Level.SEVERE, "Problems invoking koData on " + arr[i], ex);
jaroslav@976:                 }
jaroslav@976:             }
jaroslav@976:         }
jaroslav@987:         return Knockout.toArray(arr);
jaroslav@971:     }
jaroslav@976:     private static final Logger LOG = Logger.getLogger(KOList.class.getName());
jaroslav@761: 
jaroslav@761:     private void notifyChange() {
jaroslav@761:         Knockout m = model;
jaroslav@950:         if (m != null) {
jaroslav@950:             m.valueHasMutated(name);
jaroslav@950:             for (String dependant : deps) {
jaroslav@950:                 m.valueHasMutated(dependant);
jaroslav@950:             }
jaroslav@761:         }
jaroslav@950:         Runnable r = onchange;
jaroslav@950:         if (r != null) {
jaroslav@950:             r.run();
jaroslav@761:         }
jaroslav@761:     }
jaroslav@930: 
jaroslav@930:     @Override
jaroslav@930:     public KOList clone() {
jaroslav@955:         KOList ko = (KOList)super.clone();
jaroslav@955:         ko.model = null;
jaroslav@955:         return ko;
jaroslav@930:     }
jaroslav@761:     
jaroslav@761: }