/*
* PhoneMultiLineScreen.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.phone.phonemultilinedemo;
import net.rim.blackberry.api.phone.InvalidIDException;
import net.rim.blackberry.api.phone.Phone;
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.system.RadioException;
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.ObjectChoiceField;
import net.rim.device.api.ui.container.MainScreen;
import net.rim.device.api.util.StringProvider;
/**
* The MainScreen class for the Phone Multi Line Demo application
*/
public final class PhoneMultiLineScreen extends MainScreen {
private final BasicEditField _basicEditField;
private final PhoneMultiLineAction _action;
private final ObjectChoiceField _choiceField;
private final UiApplication _app;
private Choice[] _choices;
/**
* Constructs a new PhoneMultiLineScreen object
*
* @param app
* A reference to the UiApplication instance
*/
public PhoneMultiLineScreen(final UiApplication app) {
_app = app;
setTitle("Phone Multi Line Demo");
populateChoices();
_choiceField =
new ObjectChoiceField("Select a line", _choices,
getActiveChoice());
add(_choiceField);
// Menu item to initiate outgoing call with the selected line
final MenuItem _callWithSelectedLineMenuItem =
new MenuItem(new StringProvider("Call With Selected Line"),
0x230010, 0);
_callWithSelectedLineMenuItem.setCommand(new Command(
new CommandHandler() {
/**
* @see net.rim.device.api.command.CommandHandler#execute(ReadOnlyCommandMetadata,
* Object)
*/
public void execute(final ReadOnlyCommandMetadata metadata,
final Object context) {
final String text = _basicEditField.getText();
if (text == null || text.trim().length() == 0) {
Dialog.alert("Please enter phone number");
} else {
final Choice choice =
(Choice) _choiceField
.getChoice(_choiceField
.getSelectedIndex());
try {
// If the selected line is not currently active,
// the
// following method call will set it as active
// as
// well as place the call.
Phone.initiateCall(choice.getLineId(), text);
} catch (final RadioException re) {
PhoneMultiLineDemo
.messageDialog("Phone.initiateCall(int, String) threw "
+ re.toString());
}
}
}
}));
addMenuItem(_callWithSelectedLineMenuItem);
final MenuItem _switchLineMenuItem =
new MenuItem(new StringProvider("Switch To The Selected Line"),
0x230020, 1);
_switchLineMenuItem.setCommand(new Command(new CommandHandler() {
/**
* @see net.rim.device.api.command.CommandHandler#execute(ReadOnlyCommandMetadata,
* Object)
*/
public void execute(final ReadOnlyCommandMetadata metadata,
final Object context) {
final Choice choice =
(Choice) _choiceField.getChoice(_choiceField
.getSelectedIndex());
Phone.setPreferredLine(choice.getLineId());
}
}));
addMenuItem(_switchLineMenuItem);
// Edit field for users to enter a phone number
_basicEditField =
new BasicEditField("Phone number: ", "", 10,
BasicEditField.FILTER_PHONE);
add(_basicEditField);
// Instantiate the PhoneMultiLineAction object, which registers itself
// as the phone multi-line listener.
_action = new PhoneMultiLineAction(this);
}
/**
* @see MainScreen#onSavePrompt()
*/
public boolean onSavePrompt() {
// Suppress the save prompt
return true;
}
/**
* @see net.rim.device.api.ui.Screen#onClose()
*/
public boolean onClose() {
Phone.removePhoneListener(_action);
return super.onClose();
}
/**
* Populates the choice field with the line IDs
*/
private void populateChoices() {
final int[] lineIds = Phone.getLineIds();
if (lineIds != null && lineIds.length > 0) {
_choices = new Choice[lineIds.length];
for (int i = lineIds.length - 1; i >= 0; --i) {
String lineNumber;
String lineLabel;
int lineType;
try {
lineNumber = Phone.getLineNumber(lineIds[i]);
lineLabel = Phone.getLineLabel(lineIds[i]);
lineType = Phone.getLineType(lineIds[i]);
} catch (final InvalidIDException e) {
PhoneMultiLineDemo.messageDialog("Error: " + e.toString());
continue;
}
final StringBuffer buf = new StringBuffer();
buf.append(lineLabel);
switch (lineType) {
case Phone.MOBILE_TYPE:
buf.append(" (Mobile): ");
break;
case Phone.PBX_TYPE:
buf.append(" (PBX): ");
break;
}
buf.append(lineNumber);
_choices[i] = new Choice(lineIds[i], buf.toString());
}
}
}
/**
* Sets the selected choice object to be that which corresponds to the
* active line.
*/
void setSelectedChoice() {
_app.invokeAndWait(new Runnable() {
public void run() {
_choiceField.setSelectedIndex(getActiveChoice());
}
});
}
/**
* Returns the choice object whose line id is the active line id
*
* @return Choice object corresponding to the active line
*/
private Choice getActiveChoice() {
final int lineId = Phone.getActiveLineId();
if (_choices != null && _choices.length > 0) {
for (int i = 0; i < _choices.length; i++) {
if (_choices[i].getLineId() == lineId) {
return _choices[i];
}
}
}
return null;
}
/**
* A class used to encapsulate the line ids and the line descriptions
*/
private static final class Choice {
private final int _lineId;
private final String _choiceLabel;
public Choice(final int lineId, final String choiceLabel) {
_lineId = lineId;
_choiceLabel = choiceLabel;
}
public String toString() {
return _choiceLabel;
}
public int getLineId() {
return _lineId;
}
}
}