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/*
* Copyright (C) 2013 The Android Open Source Project
*
* 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.
*/
package com.android.terminal;
import android.app.Service;
import android.content.Intent;
import android.os.Binder;
import android.os.IBinder;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/**
* Background service that keeps {@link Terminal} instances running and warm
* when UI isn't present.
*/
public class TerminalService extends Service {
private static final String TAG = "Terminal";
private final ArrayList<Terminal> mTerminals = new ArrayList<Terminal>();
public class ServiceBinder extends Binder {
public TerminalService getService() {
return TerminalService.this;
}
}
@Override
public IBinder onBind(Intent intent) {
return new ServiceBinder();
}
public List<Terminal> getTerminals() {
return Collections.unmodifiableList(mTerminals);
}
public Terminal createTerminal() {
// If our first terminal, start ourselves as long-lived service
if (mTerminals.isEmpty()) {
startService(new Intent(this, TerminalService.class));
}
final Terminal term = new Terminal();
term.start();
mTerminals.add(term);
return term;
}
public void destroyTerminal(Terminal term) {
term.stop();
mTerminals.remove(term);
// If our last terminal, tear down long-lived service
if (mTerminals.isEmpty()) {
stopService(new Intent(this, TerminalService.class));
}
}
}
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