defaultsui.java

来自「SUN公司发布的SmartTicket 2.0蓝图」· Java 代码 · 共 166 行

/*
 * Copyright 2001, 2002, 2003 Sun Microsystems, Inc. All Rights Reserved.
 * Except for any files in PNG format (which are marked with the filename
 * extension ".png"), GIF format (which are marked with the filename
 * extension ".gif"), or JPEG format (which are marked with the filename
 * extension ".jpg"), redistribution and use in source and binary forms,
 * with or without modification, are permitted provided that the
 * following conditions are met:
 * - Redistribution of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 * - Redistribution in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * You may compile, use, perform and display the following files with
 * original Java Smart Ticket Sample Application code obtained from Sun
 * Microsystems, Inc. only:
 * - files in PNG format and having the ".png" extension
 * - files in GIF format and having the ".gif" extension
 * - files in JPEG format and having the ".jpg" extension
 * You may not modify or redistribute .png, .gif, or .jpg files in any
 * form, in whole or in part, by any means without prior written
 * authorization from Sun Microsystems, Inc. and its licensors, if any.
 * Neither the name of Sun Microsystems, Inc., the 'Java Smart Ticket
 * Sample Application', 'Java', 'Java'-based names, or the names of
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * This software is provided "AS IS," without a warranty of any kind. ALL
 * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
 * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
 * MIDROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
 * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
 * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
 * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
 * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
 * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
 * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
 * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
 * You acknowledge that this software is not designed, licensed or
 * intended for use in the design, construction, operation or maintenance
 * of any nuclear facility.
 * $Id: DefaultsUI.java,v 1.6 2003/06/24 22:53:10 ro89390 Exp $
 */
package com.sun.j2me.blueprints.smartticket.client.midp.ui;

import javax.microedition.lcdui.*;
import com.sun.j2me.blueprints.smartticket.client.midp.model.Preferences;
import com.sun.j2me.blueprints.smartticket.client.midp.ui.UIUtilities;

public class DefaultsUI extends Form implements CommandListener {
    private UIController uiController;
    private Preferences preferences;
    private Command saveCommand;
    private Command cancelCommand;
    private TextField firstZipField;
    private TextField secondZipField;
    private UIUtilities.DayChoiceGroup dayChoiceGroup;
    private ChoiceGroup syncStrategyGroup;

    public DefaultsUI(UIController uiController) {
        super(uiController.getString(UIMessageCodes.DEFAULTS_TITLE));

        this.uiController = uiController;
        firstZipField = 
            new TextField(uiController.getString(UIMessageCodes.FIRST_ZIP), 
                          null, 10, TextField.ANY);

        append(firstZipField);

        secondZipField = 
            new TextField(uiController.getString(UIMessageCodes.SECOND_ZIP), 
                          null, 10, TextField.ANY);

        append(secondZipField);

        dayChoiceGroup = new UIUtilities.DayChoiceGroup();

        append(dayChoiceGroup);

        syncStrategyGroup = 
            new ChoiceGroup(uiController.getString(UIMessageCodes.MOVIE_RATING_SYNCHRONIZATION_STRATEGY), 
                            ChoiceGroup.EXCLUSIVE, new String[] {
            uiController.getString(UIMessageCodes.FIRST_WINS), 
            uiController.getString(UIMessageCodes.LAST_WINS), 
            uiController.getString(UIMessageCodes.ASK_ME)
        }, null);

        append(syncStrategyGroup);

        saveCommand = new Command(uiController.getString(UIMessageCodes.SAVE), 
                                  Command.OK, 5);

        addCommand(saveCommand);

        cancelCommand = 
            new Command(uiController.getString(UIMessageCodes.CANCEL), 
                        Command.CANCEL, 5);

        addCommand(cancelCommand);
        setCommandListener(this);
    }

    public void init(Preferences preferences) {
        this.preferences = preferences;

        firstZipField.setString(preferences.getDefaultZipCode());
        secondZipField.setString(preferences.getSecondZipCode());
        dayChoiceGroup.setSelectedDay(preferences.getFavoriteDay());
        // The following line assumes that the indices of the choice group
        // correspond to the constants representing the resolution strategy.
        syncStrategyGroup.setSelectedIndex(preferences.getConflictResolutionStrategyId(), 
                                           true);
    } 

    public void commandAction(Command command, Displayable displayable) {
        if (command == cancelCommand) {
            uiController.handleEvent(UIController.EventIds.EVENT_ID_PREFERENCES_CANCELLED);
        } else if (command == saveCommand) {
            String firstZip = null;
            String secondZip = null;

            firstZip = firstZipField.getString();

            if (firstZip == null 
                    || firstZip.length() != UIUtilities.ZIP_LENGTH) {
                uiController.showErrorAlert(uiController.getString(UIMessageCodes.ZIP_CODE_BAD_LENGTH));

                return;
            } 

            secondZip = secondZipField.getString();

            // it's not necessary to have 2nd zip code, but it's required to
            // be 5 characters long
            if (secondZip != null && secondZip.length() != 0 
                    && secondZip.length() != UIUtilities.ZIP_LENGTH) {
                uiController.showErrorAlert(uiController.getString(UIMessageCodes.ZIP_CODE_BAD_LENGTH));

                return;
            } 

            preferences.setDefaultZipCode(firstZip);

            if (secondZip != null) {
                preferences.setSecondZipCode(secondZip);
            } 

            try {
                preferences.setFavoriteDay(dayChoiceGroup.getSelectedDay());
            } catch (IllegalStateException e) {
                // Do nothing.
            } 

            preferences.setConflictResolutionStrategyId(syncStrategyGroup.getSelectedIndex());
            uiController.handleEvent(UIController.EventIds.EVENT_ID_PREFERENCES_SAVE_REQUESTED, 
                                     new Object[] {
                preferences
            });
        } 
    } 

}