Package org.apache.wicket.extensions.yui.calendar

Source Code of org.apache.wicket.extensions.yui.calendar.DatesPage1$LocaleDropDownChoice

/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements.  See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.wicket.extensions.yui.calendar;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.Date;
import java.util.List;
import java.util.Locale;

import org.apache.wicket.Session;
import org.apache.wicket.datetime.StyleDateConverter;
import org.apache.wicket.datetime.markup.html.form.DateTextField;
import org.apache.wicket.markup.html.WebPage;
import org.apache.wicket.markup.html.form.ChoiceRenderer;
import org.apache.wicket.markup.html.form.DropDownChoice;
import org.apache.wicket.markup.html.form.Form;
import org.apache.wicket.markup.html.link.Link;
import org.apache.wicket.markup.html.panel.FeedbackPanel;
import org.apache.wicket.model.AbstractReadOnlyModel;
import org.apache.wicket.model.PropertyModel;

/**
* Demonstrates components from the wicket-date project and a bunch of locale fiddling.
*/
public class DatesPage1 extends WebPage
{
  private static final long serialVersionUID = 1L;

  /**
   * Choice for a locale.
   */
  private final class LocaleChoiceRenderer extends ChoiceRenderer<Locale>
  {
    private static final long serialVersionUID = 1L;

    /**
     * Constructor.
     */
    public LocaleChoiceRenderer()
    {
    }

    /**
     * @see org.apache.wicket.markup.html.form.IChoiceRenderer#getDisplayValue(Object)
     */
    @Override
    public Object getDisplayValue(Locale locale)
    {
      String enName = locale.getDisplayName(LOCALE_EN);
      String localizedName = locale.getDisplayName(selectedLocale);
      return localizedName + (!enName.equals(localizedName) ? (" (" + enName + ")") : "");
    }
  }

  /**
   * Dropdown with Locales.
   */
  private final class LocaleDropDownChoice extends DropDownChoice<Locale>
  {
    private static final long serialVersionUID = 1L;

    /**
     * Construct.
     *
     * @param id
     *            component id
     */
    public LocaleDropDownChoice(String id)
    {
      super(id);
      // sort locales on strings of selected locale
      setChoices(new AbstractReadOnlyModel<List<? extends Locale>>()
      {
        private static final long serialVersionUID = 1L;

        @Override
        public List<Locale> getObject()
        {
          getSelectedLocale();
          List<Locale> locales = new ArrayList<Locale>(LOCALES);
          Collections.sort(locales, new Comparator<Locale>()
          {
            public int compare(Locale o1, Locale o2)
            {
              return o1.getDisplayName(selectedLocale).compareTo(
                o2.getDisplayName(selectedLocale));
            }
          });
          return locales;
        }
      });
      setChoiceRenderer(new LocaleChoiceRenderer());
      setDefaultModel(new PropertyModel<Locale>(DatesPage1.this, "selectedLocale"));
    }

    @Override
    public String getModelValue()
    {
      return super.getModelValue();
    }

    /**
     * @see org.apache.wicket.markup.html.form.DropDownChoice#onSelectionChanged(java.lang.Object)
     */
    @Override
    public void onSelectionChanged(Locale newSelection)
    {
    }

    /**
     * @see org.apache.wicket.markup.html.form.DropDownChoice#wantOnSelectionChangedNotifications()
     */
    @Override
    protected boolean wantOnSelectionChangedNotifications()
    {
      return true;
    }
  }

  private static final Locale LOCALE_EN = new Locale("en");

  private static final List<Locale> LOCALES;
  static
  {
    LOCALES = Arrays.asList(Locale.CANADA, Locale.CANADA_FRENCH, Locale.CHINA, Locale.ENGLISH,
      Locale.FRANCE, Locale.FRENCH, Locale.GERMAN, Locale.GERMANY, Locale.ITALIAN,
      Locale.ITALY, Locale.JAPAN, Locale.JAPANESE, Locale.KOREA, Locale.KOREAN, Locale.PRC,
      Locale.SIMPLIFIED_CHINESE, Locale.TAIWAN, Locale.TRADITIONAL_CHINESE, Locale.UK,
      Locale.US);
  }

  private final Date date = new Date();

  private Locale selectedLocale = LOCALE_EN;

  /**
   * Constructor
   */
  public DatesPage1()
  {
    selectedLocale = Session.get().getLocale();
    Form<?> localeForm = new Form<Void>("localeForm");
    localeForm.add(new LocaleDropDownChoice("localeSelect"));
    localeForm.add(new Link<Void>("localeUSLink")
    {
      private static final long serialVersionUID = 1L;

      @Override
      public void onClick()
      {
        selectedLocale = LOCALE_EN;
      }
    });
    add(localeForm);
    DateTextField dateTextField = new DateTextField("dateTextField", new PropertyModel<Date>(
      this, "date"), new StyleDateConverter("S-", true))
    {
      private static final long serialVersionUID = 1L;

      @Override
      public Locale getLocale()
      {
        return selectedLocale;
      }
    };
    Form<?> form = new Form<Void>("form")
    {
      private static final long serialVersionUID = 1L;

      @Override
      protected void onSubmit()
      {
        info("set date to " + date);
      }
    };
    add(form);
    form.add(dateTextField);
    dateTextField.add(new DatePicker());
    add(new FeedbackPanel("feedback"));
  }

  /**
   * @return the selected locale
   */
  public final Locale getSelectedLocale()
  {
    return selectedLocale;
  }

  /**
   * @param selectedLocale
   */
  public final void setSelectedLocale(Locale selectedLocale)
  {
    this.selectedLocale = selectedLocale;
  }
}
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