/*
* AuthenticationScreen.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.communicationapidemo.view;
import net.rim.device.api.io.messaging.ByteMessage;
import net.rim.device.api.io.messaging.Message;
import net.rim.device.api.ui.Field;
import net.rim.device.api.ui.FieldChangeListener;
import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.ui.component.Dialog;
import net.rim.device.api.ui.component.EditField;
import net.rim.device.api.ui.component.LabelField;
import net.rim.device.api.ui.component.SeparatorField;
import net.rim.device.api.ui.container.MainScreen;
import com.rim.samples.device.communicationapidemo.CommunicationController;
import com.rim.samples.device.communicationapidemo.ResponseCallback;
import com.rim.samples.device.communicationapidemo.ui.FullWidthButton;
public final class AuthenticationScreen extends MainScreen {
private final EditField _uriField;
private final EditField _userIdField;
private final EditField _passwordField;
private final ResponseCallback _callback;
private boolean _pending;
/**
* Creates a new AuthenticationScreen object
*/
public AuthenticationScreen(final CommunicationController controller) {
setTitle("Basic Authentication");
_callback = new AuthentificationScreenCallback(this);
// Initialize UI components
final FullWidthButton backButton = new FullWidthButton("Back");
_uriField =
new EditField("Enter URL:",
"http://twitter.com/statuses/user_timeline.json", 140,
0);
_userIdField = new EditField("Username:", "debobb", 140, 0);
_passwordField = new EditField("Password:", "debo2010", 140, 0);
backButton.setChangeListener(new FieldChangeListener() {
/**
* @see FieldChangeListener#fieldChanged(Field, int)
*/
public void fieldChanged(final Field field, final int context) {
((UiApplication) AuthenticationScreen.this.getApplication())
.popScreen(AuthenticationScreen.this);
}
});
final FullWidthButton postButton = new FullWidthButton("Get Data");
postButton.setChangeListener(new FieldChangeListener() {
/**
* @see FieldChangeListener#fieldChanged(Field, int)
*/
public void fieldChanged(final Field field, final int context) {
if (!_pending) {
_pending = true;
controller.authenticate(_uriField.getText(), _userIdField
.getText(), _passwordField.getText(), _callback);
} else {
Dialog.alert("Previous request pending state...");
}
}
});
final LabelField instructions =
new LabelField(
"This screen allows you to set credentials on your request. To test authentication, "
+ "enter a URL that needs basic authentication and add the username and password parameters to the request.",
Field.NON_FOCUSABLE);
// Add components to screen
add(backButton);
add(_uriField);
add(_userIdField);
add(_passwordField);
add(postButton);
add(new SeparatorField());
add(instructions);
}
/**
* @see MainScreen#onSavePrompt()
*/
public boolean onSavePrompt() {
// Suppress the save dialog
return true;
}
private static final class AuthentificationScreenCallback extends
ResponseCallback {
private final AuthenticationScreen _screen;
private AuthentificationScreenCallback(final AuthenticationScreen screen) {
_screen = screen;
}
public void onResponse(final Message message) {
if (message != null) {
String alertString =
" :RECEIVED[id: " + message.getMessageId() + "]:";
final String stringPayload =
((ByteMessage) message).getStringPayload();
if (stringPayload != null) {
alertString += "\n" + stringPayload;
}
Dialog.alert(alertString);
}
_screen._pending = false;
}
public void onTimeout(final int timeout) {
_screen._pending = false;
final String timeoutMessage =
"Wait for response: timed out after " + timeout + " sec";
Dialog.alert(timeoutMessage);
}
}
}