LabelEditable.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.label;
 
import java.util.Collection;
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.*;
import org.zkoss.zul.impl.InputElement;
 
public class LabelEditable extends Hbox implements AfterCompose {
 
  private String label, image, oldLabel;
  private boolean editing = false, editable = true;
  private int editorCols;
  private Collection<String> values;
 
  public LabelEditable(String label, String image) {
    this.label = label;
    this.image = image;
  }
 
  public LabelEditable(String label) {
    this.label = label;
  }
 
  public LabelEditable() {
  }
 
  public boolean isEditable() {
    return editable;
  }
 
  public void setEditable(boolean editable) {
    this.editable = editable;
  }
 
  public boolean isEditing() {
    return editing;
  }
 
  public void setEditing(boolean editing) {
    this.editing = editing;
  }
 
  public int getEditorCols() {
    return editorCols;
  }
 
  public void setEditorCols(int editorCols) {
    this.editorCols = editorCols;
  }
 
  public String getImage() {
    return image;
  }
 
  public void setImage(String image) {
    this.image = image;
  }
 
  public String getLabel() {
    return label;
  }
 
  public void setLabel(String label) {
    this.label = label;
  }
 
  public String getOldLabel() {
    return oldLabel;
  }
 
  public Collection<String> getValues() {
    return values;
  }
 
  public void setValues(Collection<String> values) {
    this.values = values;
  }
 
  @Override
  public void afterCompose() {
    createComponent();
  }
 
  private void createComponent() {
    getChildren().clear();
    if(!editable) {
      Label l = new Label(label);
      l.setSclass("softLabel");
      appendChild(l);
    } else {
      if(!editing) {
        Toolbarbutton tb = new Toolbarbutton(label, image);
        tb.setSclass("softLabel");
        tb.addEventListener(Events.ON_CLICK, new EventListener() {
          @Override
          public void onEvent(Event event) throws Exception {
            editing = true;
            createComponent();
            Events.postEvent(new Event(Events.ON_CHANGING, LabelEditable.this, LabelEditable.this));
          }
        });
        appendChild(tb);
      } else {
        final InputElement tb;
        if(values != null && !values.isEmpty()) {
          tb = new Combobox(label);
          ((Combobox) tb).setModel(new ListModelList(values));
        } else {
          tb = new Textbox(label);
        }
        if(editorCols > 0) {
          tb.setCols(editorCols);
        } else if(editorCols == -1) {
          tb.setHflex("1");
        }
        tb.setSclass("softLabel");
        tb.addEventListener(Events.ON_OK, new EventListener() {
          @Override
          public void onEvent(Event event) throws Exception {
            oldLabel = label;
            label = tb.getText();
            editing = false;
            createComponent();
            Events.postEvent(new Event(Events.ON_CHANGE, LabelEditable.this, LabelEditable.this));
          }
        });
        tb.addEventListener(Events.ON_CANCEL, new EventListener() {
          @Override
          public void onEvent(Event event) throws Exception {
            editing = false;
            createComponent();
          }
        });
        tb.addEventListener(Events.ON_BLUR, new EventListener() {
          @Override
          public void onEvent(Event event) throws Exception {
            editing = false;
            createComponent();
          }
        });
        appendChild(tb);
        tb.select();
        tb.setFocus(true);
      }
    }
  }
 
}