1 /* 2 * Copyright (C) 2010 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.systemui; 18 19 import java.io.FileDescriptor; 20 import java.io.PrintWriter; 21 22 import android.app.Service; 23 import android.content.BroadcastReceiver; 24 import android.content.Context; 25 import android.content.Intent; 26 import android.content.pm.PackageManager; 27 import android.content.res.Configuration; 28 import android.os.Binder; 29 import android.os.IBinder; 30 import android.os.RemoteException; 31 import android.os.ServiceManager; 32 import android.util.Slog; 33 import android.view.IWindowManager; 34 import android.view.WindowManagerGlobal; 35 import android.view.accessibility.AccessibilityManager; 36 37 public class SystemUIService extends Service { 38 static final String TAG = "SystemUIService"; 39 40 /** 41 * The class names of the stuff to start. 42 */ 43 final Object[] SERVICES = new Object[] { 44 0, // system bar or status bar, filled in below. 45 com.android.systemui.power.PowerUI.class, 46 com.android.systemui.media.RingtonePlayer.class, 47 com.android.systemui.settings.SettingsUI.class, 48 }; 49 50 /** 51 * Hold a reference on the stuff we start. 52 */ 53 SystemUI[] mServices; 54 55 private Class chooseClass(Object o) { 56 if (o instanceof Integer) { 57 final String cl = getString((Integer)o); 58 try { 59 return getClassLoader().loadClass(cl); 60 } catch (ClassNotFoundException ex) { 61 throw new RuntimeException(ex); 62 } 63 } else if (o instanceof Class) { 64 return (Class)o; 65 } else { 66 throw new RuntimeException("Unknown system ui service: " + o); 67 } 68 } 69 70 @Override 71 public void onCreate() { 72 // Tell the accessibility layer that this process will 73 // run as the current user, i.e. run across users. 74 AccessibilityManager.createAsSharedAcrossUsers(this); 75 76 // Pick status bar or system bar. 77 IWindowManager wm = WindowManagerGlobal.getWindowManagerService(); 78 try { 79 SERVICES[0] = wm.hasSystemNavBar() 80 ? R.string.config_systemBarComponent 81 : R.string.config_statusBarComponent; 82 } catch (RemoteException e) { 83 Slog.w(TAG, "Failing checking whether status bar can hide", e); 84 } 85 86 final int N = SERVICES.length; 87 mServices = new SystemUI[N]; 88 for (int i=0; i<N; i++) { 89 Class cl = chooseClass(SERVICES[i]); 90 Slog.d(TAG, "loading: " + cl); 91 try { 92 mServices[i] = (SystemUI)cl.newInstance(); 93 } catch (IllegalAccessException ex) { 94 throw new RuntimeException(ex); 95 } catch (InstantiationException ex) { 96 throw new RuntimeException(ex); 97 } 98 mServices[i].mContext = this; 99 Slog.d(TAG, "running: " + mServices[i]); 100 mServices[i].start(); 101 } 102 } 103 104 @Override 105 public void onConfigurationChanged(Configuration newConfig) { 106 for (SystemUI ui: mServices) { 107 ui.onConfigurationChanged(newConfig); 108 } 109 } 110 111 /** 112 * Nobody binds to us. 113 */ 114 @Override 115 public IBinder onBind(Intent intent) { 116 return null; 117 } 118 119 @Override 120 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 121 if (args == null || args.length == 0) { 122 for (SystemUI ui: mServices) { 123 pw.println("dumping service: " + ui.getClass().getName()); 124 ui.dump(fd, pw, args); 125 } 126 } else { 127 String svc = args[0]; 128 for (SystemUI ui: mServices) { 129 String name = ui.getClass().getName(); 130 if (name.endsWith(svc)) { 131 ui.dump(fd, pw, args); 132 } 133 } 134 } 135 } 136 } 137 138