1 /* 2 * Copyright (C) 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.terminal; 18 19 import android.app.Service; 20 import android.content.Intent; 21 import android.os.Binder; 22 import android.os.IBinder; 23 import android.util.SparseArray; 24 25 /** 26 * Background service that keeps {@link Terminal} instances running and warm 27 * when UI isn't present. 28 */ 29 public class TerminalService extends Service { 30 private final SparseArray<Terminal> mTerminals = new SparseArray<Terminal>(); 31 32 public class ServiceBinder extends Binder { 33 public TerminalService getService() { 34 return TerminalService.this; 35 } 36 } 37 38 @Override 39 public IBinder onBind(Intent intent) { 40 return new ServiceBinder(); 41 } 42 43 public SparseArray<Terminal> getTerminals() { 44 return mTerminals; 45 } 46 47 public int createTerminal() { 48 // If our first terminal, start ourselves as long-lived service 49 if (mTerminals.size() == 0) { 50 startService(new Intent(this, TerminalService.class)); 51 } 52 53 final Terminal term = new Terminal(); 54 term.start(); 55 mTerminals.put(term.key, term); 56 return term.key; 57 } 58 59 public void destroyTerminal(int key) { 60 final Terminal term = mTerminals.get(key); 61 term.destroy(); 62 mTerminals.delete(key); 63 64 // If our last terminal, tear down long-lived service 65 if (mTerminals.size() == 0) { 66 stopService(new Intent(this, TerminalService.class)); 67 } 68 } 69 } 70
