/**
* OTAContactScreen.java
*
* Copyright � 1998-2011 Research In Motion Limited
*
* 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.
*
* Note: For the sake of simplicity, this sample application may not leverage
* resource bundles and resource strings. However, it is STRONGLY recommended
* that application developers make use of the localization features available
* within the BlackBerry development platform to ensure a seamless application
* experience across a variety of languages and geographies. For more information
* on localizing your application, please refer to the BlackBerry Java Development
* Environment Development Guide associated with this release.
*/
package com.rim.samples.device.otabackuprestoredemo;
import net.rim.device.api.command.Command;
import net.rim.device.api.command.CommandHandler;
import net.rim.device.api.command.ReadOnlyCommandMetadata;
import net.rim.device.api.ui.MenuItem;
import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.ui.component.BasicEditField;
import net.rim.device.api.ui.component.Dialog;
import net.rim.device.api.ui.component.EditField;
import net.rim.device.api.ui.component.Menu;
import net.rim.device.api.ui.component.TextField;
import net.rim.device.api.ui.container.MainScreen;
import net.rim.device.api.util.StringProvider;
/**
* This screen allows the user to view and edit contact information
*/
public final class OTAContactScreen extends MainScreen {
private final EditField _first, _last, _email;
private int _uid = -1;
private final SaveMenuItem _saveMenuItem;
private BackMenuItem _backMenuItem;
private OTAContactData _contact;
/**
* A MenuItem class to saves the current contact
*/
private class SaveMenuItem extends MenuItem {
/**
* Creates a new SaveMenuItem object
*/
private SaveMenuItem() {
super(new StringProvider("Save"), 0x230010, 5);
this.setCommand(new Command(new CommandHandler() {
/**
* Saves the contact and closes this screen
*
* @see net.rim.device.api.command.CommandHandler#execute(ReadOnlyCommandMetadata,
* Object)
*/
public void execute(final ReadOnlyCommandMetadata metadata,
final Object context) {
// If successful, return to contact list.
if (onSave()) {
final UiApplication uiapp =
UiApplication.getUiApplication();
uiapp.popScreen(uiapp.getActiveScreen());
}
}
}));
}
}
/**
* Closes this screen and goes back one screen
*/
private static class BackMenuItem extends MenuItem {
/**
* Creates a new BackMenuItem object
*/
private BackMenuItem() {
super(new StringProvider("Back"), 0x230020, 5);
this.setCommand(new Command(new CommandHandler() {
/**
* Closes this screen
*
* @see net.rim.device.api.command.CommandHandler#execute(ReadOnlyCommandMetadata,
* Object)
*/
public void execute(final ReadOnlyCommandMetadata metadata,
final Object context) {
final UiApplication uiapp =
UiApplication.getUiApplication();
uiapp.popScreen(uiapp.getActiveScreen());
}
}));
}
}
/**
* Creates a new OTAContactScreen object
*/
public OTAContactScreen() {
_saveMenuItem = new SaveMenuItem();
setTitle("Contact");
_first = new EditField("First: ", "");
add(_first);
_last = new EditField("Last: ", "");
add(_last);
_email =
new EditField("Email: ", "", TextField.DEFAULT_MAXCHARS,
BasicEditField.FILTER_EMAIL);
add(_email);
}
/**
* Creates a new OTAContactScreen object, specifying an existing contact to
* view/edit
*
* @param contact
* The contact to display
* @param editable
* True if the contact information is editable, otherwise false
*/
public OTAContactScreen(final OTAContactData contact, final boolean editable) {
this();
_backMenuItem = new BackMenuItem();
_contact = contact;
_first.setText(_contact.getFirst());
_first.setEditable(editable);
_last.setText(_contact.getLast());
_last.setEditable(editable);
_email.setText(_contact.getEmail());
_email.setEditable(editable);
_uid = contact.getUID();
}
/**
* Retrieves the contact being displayed on this screen
*
* @return The contact being displayed on this screen
*/
OTAContactData getContact() {
return _contact;
}
/**
* @see net.rim.device.api.ui.Screen#onSave()
*/
protected boolean onSave() {
final String firstName = _first.getText().trim();
final String lastName = _last.getText().trim();
final String email = _email.getText().trim();
// Check that first or last name and email has been entered
if (firstName.length() == 0 && lastName.length() == 0
|| email.length() == 0) {
Dialog.inform("Please enter a first or last name and an email address.");
return false;
} else {
if (_uid == -1) {
// uid == -1 -> This is a new contact.
_contact = new OTAContactData();
}
_contact.setFirst(firstName);
_contact.setLast(lastName);
_contact.setEmail(email);
return true;
}
}
/**
* @see net.rim.device.api.ui.container.MainScreen#makeMenu(Menu,int)
*/
protected void makeMenu(final Menu menu, final int instance) {
// If we are viewing a contact, we aren't able to edit it. In that case
// we
// just want a menu item enabling us to go back to the contact list.
if (_contact == null || _uid != -1) {
menu.add(_saveMenuItem);
} else {
menu.add(_backMenuItem);
}
super.makeMenu(menu, instance);
}
}