Multilinebox.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.input;
 
import java.util.Collection;
import org.turro.command.Command;
import org.turro.command.Context;
import org.turro.elephant.util.Messages;
import org.turro.i18n.I_;
import org.turro.util.Chars;
import org.turro.zkoss.dialog.InputDialog;
import org.turro.zkoss.dialog.Listeners;
import org.zkoss.zk.ui.WrongValueException;
import org.zkoss.zk.ui.event.Event;
import org.zkoss.zk.ui.event.EventListener;
import org.zkoss.zk.ui.event.Events;
import org.zkoss.zk.ui.ext.AfterCompose;
import org.zkoss.zul.Textbox;
 
public class Multilinebox extends Textbox implements AfterCompose, EventListener {
 
  private int scale;
  
  public Multilinebox(String value, int scale) throws WrongValueException {
    super(value);
    this.scale = scale;
  }
 
  public Multilinebox() {
  }
 
  @Override
  public void setValue(String value) throws WrongValueException {
    if(value != null && value.contains("\n")) {
      super.setValue(formatValue(value));
    } else {
      super.setValue(value);
    }
  }
 
  @Override
  public String getValue() throws WrongValueException {
    String tmp = super.getValue();
    return tmp == null ? null : tmp.replaceAll(Chars.nl().regexp().toString(), "\n");
  }
 
  public static String formatValue(String value) {
    return value == null ? null : ((String) value).replaceAll("\\n", Chars.nl().toString());
  }
 
  @Override
  public void afterCompose() {
    addEventListener(Events.ON_CLICK, this);
  }
 
  @Override
  public void onEvent(Event event) throws Exception {
    if(isReadonly()) {
      Collection c = Listeners.cancelListener(this, Events.ON_BLUR);
      Messages.info(I_.get("Reference")).add(this.getValue()).show();
      Listeners.activateListeners(this, Events.ON_BLUR, c);
    } else {
      final Collection c = Listeners.cancelListener(this, Events.ON_BLUR);
      InputDialog.getInput(getPage(), I_.get("Reference"), "Description",
              this.getValue(), null, scale, new Command() {
        @Override
        public Object execute(Context context) {
          String value = (String) context.get("value");
          if(value != null) {
            Multilinebox.this.setValue(value);
          }
          return null;
        }
      }, new Command() {
        @Override
        public Object execute(Context context) {
          Listeners.activateListeners(Multilinebox.this, Events.ON_BLUR, c);
          return null;
        }
      });
    }
  }
  
}