WizardOld.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2011 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.wizard;
 
import java.util.LinkedList;
import org.turro.elephant.zkoss.Modal;
import org.turro.i18n.I_;
import org.zkoss.zk.ui.Page;
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.*;
 
public class WizardOld extends Window {
 
  private Button prior, next, finish, cancel;
  private Tabbox body;
  private Tabs tabs;
  private Tabpanels panels;
  private LinkedList<WizardPanelOld> wpanels;
 
  public WizardOld() {
    addComponents();
  }
  
  public WizardPanelOld addPanel(WizardPanelOld panel) {
    if(wpanels == null) {
      wpanels = new LinkedList<WizardPanelOld>();
    }
    wpanels.add(panel);
    panel.setWizard(this);
    Tab tab = new Tab(wpanels.size() + " - " + panel.getLabel());
    tabs.appendChild(tab);
    Tabpanel tpanel = new Tabpanel();
    panels.appendChild(tpanel);
    tpanel.appendChild(panel);
    return panel;
  }
 
  public void show(Page page) {
    setPage(page);
    if(tabs.getChildren().isEmpty()) {
      return;
    }
    body.setSelectedIndex(0);
    setMode("modal");
    Modal.doModal(this, null);
  }
 
  protected void doPrior() {
    priorPanel();
  }
  
  protected void doNext() {
    nextPanel();
  }
  
  protected void doFinish() {
    detach();
  }
  
  protected void doCancel() {
    detach();
  }
  
  protected void priorPanel() {
    int current = body.getSelectedIndex();
    if(current < 1) return;
    if(wpanels.get(current).doLeave()) {
      current--;
      for(int i = current; i > 0; i--) {
        WizardPanelOld wp = wpanels.get(i);
        if(!wp.isShouldSkip()) {
          if(wp.doEnter()) {
            body.setSelectedIndex(i);
          }
          break;
        }
      }
    }
  }
  
  public void nextPanel() {
    int current = body.getSelectedIndex();
    if(current > wpanels.size() - 2) return;
    if(wpanels.get(current).doLeave()) {
      current++;
      for(int i = current; i < wpanels.size(); i++) {
        WizardPanelOld wp = wpanels.get(i);
        if(!wp.isShouldSkip()) {
          if(wp.doEnter()) {
            body.setSelectedIndex(i);
          }
          break;
        }
      }
    }
  }
  
  public void setPriorStatus(boolean enabled) {
    prior.setDisabled(!enabled);
  }
  
  public void setNextStatus(boolean enabled) {
    next.setDisabled(!enabled);
  }
  
  public void setFinishStatus(boolean enabled) {
    finish.setDisabled(!enabled);
  }
  
  public void setCancelStatus(boolean enabled) {
    cancel.setDisabled(!enabled);
  }
  
  private void addComponents() {
    Borderlayout layout = new Borderlayout();
    appendChild(layout);
    Center center = new Center();
    layout.appendChild(center);
    South south = new South();
    layout.appendChild(south);
    body = new Tabbox();
    center.appendChild(body);
    tabs = new Tabs();
    panels = new Tabpanels();
    body.appendChild(tabs);
    body.appendChild(panels);
    Hbox buttons = new Hbox();
    south.appendChild(buttons);
    buttons.setAlign("end");
    buttons.setPack("center");
    prior = new Button(I_.get("<< Previous"));
    prior.addEventListener(Events.ON_CLICK, new EventListener() {
      @Override
      public void onEvent(Event event) throws Exception {
        doPrior();
      }
    });
    buttons.appendChild(prior);
    next = new Button(I_.get("Next >>"));
    next.addEventListener(Events.ON_CLICK, new EventListener() {
      @Override
      public void onEvent(Event event) throws Exception {
        doNext();
      }
    });
    buttons.appendChild(next);
    finish = new Button(I_.get("Finish"));
    finish.addEventListener(Events.ON_CLICK, new EventListener() {
      @Override
      public void onEvent(Event event) throws Exception {
        doFinish();
      }
    });
    buttons.appendChild(finish);
    cancel = new Button(I_.get("Cancel"));
    cancel.addEventListener(Events.ON_CLICK, new EventListener() {
      @Override
      public void onEvent(Event event) throws Exception {
        doCancel();
      }
    });
    buttons.appendChild(cancel);
  }
 
}