/*
*
* Copyright 1990-2009 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2 only, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License version 2 for more details (a copy is
* included at /legal/license.txt).
*
* You should have received a copy of the GNU General Public License
* version 2 along with this work; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 or visit www.sun.com if you need additional
* information or have any questions.
*/
package com.sun.mmedia;
import java.util.Vector;
import com.sun.midp.midlet.*;
import com.sun.midp.main.MIDletSuiteLoader;
/**
* Tunnel between media and lcdui
* This is a singleton object per JVM
*/
public final class MediaTunnel {
/* Playable from background? */
public final static int PLAYABLE_FROM_BACKGROUND = 1;
private static MediaTunnel instance;
private Vector map;
private boolean hasForeground = true;
private MediaTunnel() {
}
/**
* Is this midlet background playable?
*/
public boolean isBackPlayable() {
return false;
}
/**
* Get media tunnel singleton object
*/
public static MediaTunnel getInstance() {
if (instance == null) {
instance = new MediaTunnel();
}
return instance;
}
/**
* Register media event consumer
*
* @retval true if the current status is in foreground
* @retval false if the current status is in background
*/
public synchronized boolean registerMediaEventConsumer(MediaEventConsumer consumer) {
if (map == null) {
map = new Vector(5);
}
if (false == map.contains(consumer)) {
map.addElement(consumer);
}
return hasForeground;
}
/**
* Register media event consumer
*
* @retval true if the current status is in foreground
* @retval false if the current status is in background
*/
public synchronized void unregisterMediaEventConsumer(MediaEventConsumer consumer) {
if (map == null) {
return;
}
if (true == map.contains(consumer)) {
map.removeElement(consumer);
}
}
/**
* Notify media event consumer about the switch to foreground
*/
public synchronized void callForegroundEventHandler() {
if (map == null) {
return;
}
int size = map.size();
hasForeground = true;
for (int i = 0; i < size; ++i) {
MediaEventConsumer c = (MediaEventConsumer)map.elementAt(i);
c.handleMediaForegroundNotify();
}
}
/**
* Notify media event consumer about the switch to background
*/
public synchronized void callBackgroundEventHandler() {
if (map == null) {
return;
}
int size = map.size();
hasForeground = false;
for (int i = 0; i < size; ++i) {
MediaEventConsumer c = (MediaEventConsumer)map.elementAt(i);
c.handleMediaBackgroundNotify();
}
}
}