/*
* Copyright 2011 JBoss Inc
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package org.drools.guvnor.client.decisiontable.cells;
import java.util.Date;
import com.google.gwt.dom.client.Element;
import com.google.gwt.event.logical.shared.ValueChangeEvent;
import com.google.gwt.event.logical.shared.ValueChangeHandler;
import com.google.gwt.i18n.client.DateTimeFormat;
import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
import com.google.gwt.user.client.ui.PopupPanel.PositionCallback;
import com.google.gwt.user.datepicker.client.DatePicker;
/**
* A Popup Date Editor.
*
* @author manstis
*
*/
public class PopupDateEditCell extends AbstractPopupEditCell<Date, Date> {
private final DatePicker datePicker;
private final DateTimeFormat format;
public PopupDateEditCell(DateTimeFormat format) {
super();
if ( format == null ) {
throw new IllegalArgumentException( "format == null" );
}
this.format = format;
this.datePicker = new DatePicker();
// Hide the panel and call valueUpdater.update when a date is selected
datePicker.addValueChangeHandler( new ValueChangeHandler<Date>() {
public void onValueChange(ValueChangeEvent<Date> event) {
// Update value
Date date = event.getValue();
setValue( lastContext,
lastParent,
date );
if ( valueUpdater != null ) {
valueUpdater.update( date );
}
panel.hide();
}
} );
vPanel.add( datePicker );
}
@Override
public void render(Context context,
Date value,
SafeHtmlBuilder sb) {
if ( value != null ) {
sb.append( renderer.render( format.format( value ) ) );
}
}
// Commit the change
@Override
protected void commit() {
// Update value
Date date = datePicker.getValue();
setValue( lastContext,
lastParent,
date );
if ( valueUpdater != null ) {
valueUpdater.update( date );
}
panel.hide();
}
// Start editing the cell
@Override
@SuppressWarnings("deprecation")
protected void startEditing(final Context context,
final Element parent,
final Date value) {
// Default date
Date date = value;
if ( value == null ) {
Date d = new Date();
int year = d.getYear();
int month = d.getMonth();
int dom = d.getDate();
date = new Date( year,
month,
dom );
}
datePicker.setCurrentMonth( date );
datePicker.setValue( date );
panel.setPopupPositionAndShow( new PositionCallback() {
public void setPosition(int offsetWidth,
int offsetHeight) {
panel.setPopupPosition( parent.getAbsoluteLeft()
+ offsetX,
parent.getAbsoluteTop()
+ offsetY );
}
} );
}
}