Home | History | Annotate | Download | only in systemui 
      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         };
     48 
     49     /**
     50      * Hold a reference on the stuff we start.
     51      */
     52     SystemUI[] mServices;
     53 
     54     private Class chooseClass(Object o) {
     55         if (o instanceof Integer) {
     56             final String cl = getString((Integer)o);
     57             try {
     58                 return getClassLoader().loadClass(cl);
     59             } catch (ClassNotFoundException ex) {
     60                 throw new RuntimeException(ex);
     61             }
     62         } else if (o instanceof Class) {
     63             return (Class)o;
     64         } else {
     65             throw new RuntimeException("Unknown system ui service: " + o);
     66         }
     67     }
     68 
     69     @Override
     70     public void onCreate() {
     71         // Tell the accessibility layer that this process will
     72         // run as the current user, i.e. run across users.
     73         AccessibilityManager.createAsSharedAcrossUsers(this);
     74 
     75         // Pick status bar or system bar.
     76         IWindowManager wm = WindowManagerGlobal.getWindowManagerService();
     77         try {
     78             SERVICES[0] = wm.hasSystemNavBar()
     79                     ? R.string.config_systemBarComponent
     80                     : R.string.config_statusBarComponent;
     81         } catch (RemoteException e) {
     82             Slog.w(TAG, "Failing checking whether status bar can hide", e);
     83         }
     84 
     85         final int N = SERVICES.length;
     86         mServices = new SystemUI[N];
     87         for (int i=0; i<N; i++) {
     88             Class cl = chooseClass(SERVICES[i]);
     89             Slog.d(TAG, "loading: " + cl);
     90             try {
     91                 mServices[i] = (SystemUI)cl.newInstance();
     92             } catch (IllegalAccessException ex) {
     93                 throw new RuntimeException(ex);
     94             } catch (InstantiationException ex) {
     95                 throw new RuntimeException(ex);
     96             }
     97             mServices[i].mContext = this;
     98             Slog.d(TAG, "running: " + mServices[i]);
     99             mServices[i].start();
    100         }
    101     }
    102 
    103     @Override
    104     public void onConfigurationChanged(Configuration newConfig) {
    105         for (SystemUI ui: mServices) {
    106             ui.onConfigurationChanged(newConfig);
    107         }
    108     }
    109 
    110     /**
    111      * Nobody binds to us.
    112      */
    113     @Override
    114     public IBinder onBind(Intent intent) {
    115         return null;
    116     }
    117 
    118     @Override
    119     protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
    120         if (args == null || args.length == 0) {
    121             for (SystemUI ui: mServices) {
    122                 pw.println("dumping service: " + ui.getClass().getName());
    123                 ui.dump(fd, pw, args);
    124             }
    125         } else {
    126             String svc = args[0];
    127             for (SystemUI ui: mServices) {
    128                 String name = ui.getClass().getName();
    129                 if (name.endsWith(svc)) {
    130                     ui.dump(fd, pw, args);
    131                 }
    132             }
    133         }
    134     }
    135 }
    136 
    137