/*
* Copyright 2008 Google 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 com.google.gwt.sample.showcase.client.content.widgets;
import com.google.gwt.core.client.GWT;
import com.google.gwt.core.client.RunAsyncCallback;
import com.google.gwt.dom.client.Style.Unit;
import com.google.gwt.event.logical.shared.ValueChangeEvent;
import com.google.gwt.event.logical.shared.ValueChangeHandler;
import com.google.gwt.i18n.client.Constants;
import com.google.gwt.i18n.client.DateTimeFormat;
import com.google.gwt.sample.showcase.client.ContentWidget;
import com.google.gwt.sample.showcase.client.ShowcaseAnnotations.ShowcaseData;
import com.google.gwt.sample.showcase.client.ShowcaseAnnotations.ShowcaseSource;
import com.google.gwt.sample.showcase.client.ShowcaseAnnotations.ShowcaseStyle;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;
import com.google.gwt.user.datepicker.client.DateBox;
import com.google.gwt.user.datepicker.client.DatePicker;
import java.util.Date;
/**
* Example file.
*/
@ShowcaseStyle({
".gwt-DatePicker", ".datePicker", "td.datePickerMonth", ".gwt-DateBox",
".dateBox"})
public class CwDatePicker extends ContentWidget {
/**
* The constants used in this Content Widget.
*/
@ShowcaseSource
public static interface CwConstants extends Constants {
String cwDatePickerBoxLabel();
String cwDatePickerDescription();
String cwDatePickerLabel();
String cwDatePickerName();
}
/**
* {@link ValueChangeHandler} used to set the value in the text box when the user selects a date
*/
@ShowcaseSource
public static class MyDateValueChangeHandler implements ValueChangeHandler<Date> {
private final Label text;
public MyDateValueChangeHandler(Label text) {
this.text = text;
}
public void onValueChange(ValueChangeEvent<Date> event) {
Date date = event.getValue();
String dateString = DateTimeFormat.getMediumDateFormat().format(date);
text.setText(dateString);
}
}
/**
* An instance of the constants.
*/
@ShowcaseData
private final CwConstants constants;
/**
* Constructor.
*
* @param constants the constants
*/
public CwDatePicker(CwConstants constants) {
super(constants.cwDatePickerName(), constants.cwDatePickerDescription(),
true);
this.constants = constants;
}
/**
* Initialize this example.
*/
@SuppressWarnings("deprecation")
@ShowcaseSource
@Override
public Widget onInitialize() {
// Create a basic date picker
DatePicker datePicker = new DatePicker();
final Label text = new Label();
// Set the value in the text box when the user selects a date
datePicker.addValueChangeHandler(new MyDateValueChangeHandler(text));
// create a date picker where years and months are selectable with drop down lists and where we
// can navigate trough the years
DatePicker advancedDatePicker = new DatePicker();
advancedDatePicker.setYearArrowsVisible(true);
advancedDatePicker.setYearAndMonthDropdownVisible(true);
// show 51 years in the years dropdown. The range of years is centered on the selected date
advancedDatePicker.setVisibleYearCount(51);
final Label text2 = new Label();
text2.getElement().getStyle().setMarginTop(15, Unit.PX);
// Set the value in the text box when the user selects a date
advancedDatePicker.addValueChangeHandler(new MyDateValueChangeHandler(text2));
// Set the default value
datePicker.setValue(new Date(), true);
advancedDatePicker.setValue(new Date(), true);
// Create a DateBox
DateTimeFormat dateFormat = DateTimeFormat.getLongDateFormat();
DateBox dateBox = new DateBox();
dateBox.setFormat(new DateBox.DefaultFormat(dateFormat));
dateBox.getDatePicker().setYearArrowsVisible(true);
// Combine the widgets into a panel and return them
VerticalPanel vPanel = new VerticalPanel();
vPanel.add(new HTML(constants.cwDatePickerLabel()));
vPanel.add(text);
vPanel.add(datePicker);
vPanel.add(text2);
vPanel.add(advancedDatePicker);
vPanel.add(new HTML(constants.cwDatePickerBoxLabel()));
vPanel.add(dateBox);
return vPanel;
}
@Override
protected void asyncOnInitialize(final AsyncCallback<Widget> callback) {
GWT.runAsync(CwDatePicker.class, new RunAsyncCallback() {
public void onFailure(Throwable caught) {
callback.onFailure(caught);
}
public void onSuccess() {
callback.onSuccess(onInitialize());
}
});
}
}