/*
* MemoScreen.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.blackberrybalancedemo;
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.MultiServicePlatformManager;
import net.rim.device.api.system.ServiceMode;
import net.rim.device.api.ui.Manager;
import net.rim.device.api.ui.MenuItem;
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.SeparatorField;
import net.rim.device.api.ui.container.MainScreen;
import net.rim.device.api.util.StringProvider;
/**
* A MainScreen for displaying a new or existing Memo
*/
public final class MemoScreen extends MainScreen {
private final EditField _nameField;
private final EditField _contentField;
private final Memo _memo;
private final BlackBerryBalanceDemo _uiApp;
private final int _index;
/**
* Creates a new MemoScreen object
*
* @param memo
* The Memo object associated with this screen
* @param index
* The position of the memo in the list. A value of -1 represents
* a new memo.
*/
public MemoScreen(final Memo memo, final int index) {
super(Manager.NO_VERTICAL_SCROLL);
setTitle("Memo Screen");
_memo = memo;
_index = index;
// Cache a reference to the application
_uiApp = (BlackBerryBalanceDemo) UiApplication.getUiApplication();
_nameField = new EditField("Title: ", _memo.getField(Memo.MEMO_NAME));
add(_nameField);
add(new SeparatorField());
_contentField = new EditField("", _memo.getField(Memo.MEMO_CONTENT));
add(_contentField);
// Menu item to save the displayed memo
final MenuItem saveItem =
new MenuItem(new StringProvider("Save"), 0x230020, 0);
saveItem.setCommand(new Command(new CommandHandler() {
/**
* @see net.rim.device.api.command.CommandHandler#execute(ReadOnlyCommandMetadata,
* Object)
*/
public void execute(final ReadOnlyCommandMetadata metadata,
final Object context) {
if (onSave()) {
close();
}
}
}));
addMenuItem(saveItem);
}
/**
* @see net.rim.device.api.ui.Screen#suggestServiceMode(ServiceMode)
*/
public boolean suggestServiceMode(final ServiceMode serviceMode) {
// Do not modify if current service mode is corporate
if (!MultiServicePlatformManager.isCorporateServiceUid(_memo.getMode())) {
setServiceMode(serviceMode);
return true;
}
return false;
}
/**
* @see net.rim.device.api.ui.Screen#setServiceModeImpl(ServiceMode)
*/
public void setServiceModeImpl(final ServiceMode serviceMode) {
/* This method is called by setServiceMode() */
_memo.setMode(serviceMode.getServiceUid());
}
/**
* @see net.rim.device.api.ui.Screen#getServiceMode()
*/
public ServiceMode getServiceMode() {
return new ServiceMode(_memo.getMode());
}
/**
* @see net.rim.device.api.ui.Screen#onSave()
*/
protected boolean onSave() {
if (!_nameField.getText().equals("")) {
_memo.setField(Memo.MEMO_NAME, _nameField.getText());
_memo.setField(Memo.MEMO_CONTENT, _contentField.getText());
_uiApp.saveMemo(_memo, _index);
return super.onSave();
} else {
Dialog.alert("Memo name required");
return false;
}
}
/**
* Retrieves the index of the currently displayed Memo
*
* @return Index of the currently displayed Memo
*/
public int getMemoIndex() {
return _index;
}
/**
* Retrieves the currently displayed Memo
*
* @return The currently displayed Memo
*/
public Memo getMemo() {
return _memo;
}
}