GroupboxArrow.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2012 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
package org.turro.zkoss.layout;
 
import org.zkoss.zk.ui.Component;
import org.zkoss.zk.ui.event.Event;
import org.zkoss.zk.ui.event.EventListener;
import org.zkoss.zk.ui.event.Events;
import org.zkoss.zul.Caption;
import org.zkoss.zul.Div;
 
public abstract class GroupboxArrow extends org.zkoss.zul.Groupbox {
 
  private Caption caption;
  private Div div;
  
  public GroupboxArrow() {
    setMold("3d");
    setSclass("gbarrow");
    caption = new Caption();
    appendChild(caption);
    div = new Div();
    caption.appendChild(div);
    div.setSclass("open-true");
    addEventListener(Events.ON_OPEN, new EventListener<Event>() {
      @Override
      public void onEvent(Event event) throws Exception {
        div.setSclass("open-" + GroupboxArrow.this.isOpen());
        fillContent(GroupboxArrow.this.isOpen());
      }
    });
  }
  
  public void setCaption(Component comp) {
    div.appendChild(comp);
  }
 
  @Override
  public void setOpen(boolean open) {
    super.setOpen(open);
    div.setSclass("open-" + open);
    fillContent(isOpen());
  }
 
  private void fillContent(boolean open) {
    if(open && getChildren().size() == 1) {
      doFillContent();
    }
  }
 
  protected abstract void doFillContent();
  
}