1 /* 2 * Copyright (C) 2012 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 android.os; 18 19 import android.content.Context; 20 import android.media.AudioAttributes; 21 import android.util.Log; 22 23 /** 24 * Vibrator implementation that controls the main system vibrator. 25 * 26 * @hide 27 */ 28 public class SystemVibrator extends Vibrator { 29 private static final String TAG = "Vibrator"; 30 31 private final IVibratorService mService; 32 private final Binder mToken = new Binder(); 33 SystemVibrator()34 public SystemVibrator() { 35 mService = IVibratorService.Stub.asInterface( 36 ServiceManager.getService("vibrator")); 37 } 38 SystemVibrator(Context context)39 public SystemVibrator(Context context) { 40 super(context); 41 mService = IVibratorService.Stub.asInterface( 42 ServiceManager.getService("vibrator")); 43 } 44 45 @Override hasVibrator()46 public boolean hasVibrator() { 47 if (mService == null) { 48 Log.w(TAG, "Failed to vibrate; no vibrator service."); 49 return false; 50 } 51 try { 52 return mService.hasVibrator(); 53 } catch (RemoteException e) { 54 } 55 return false; 56 } 57 58 /** 59 * @hide 60 */ 61 @Override vibrate(int uid, String opPkg, long milliseconds, AudioAttributes attributes)62 public void vibrate(int uid, String opPkg, long milliseconds, AudioAttributes attributes) { 63 if (mService == null) { 64 Log.w(TAG, "Failed to vibrate; no vibrator service."); 65 return; 66 } 67 try { 68 mService.vibrate(uid, opPkg, milliseconds, usageForAttributes(attributes), mToken); 69 } catch (RemoteException e) { 70 Log.w(TAG, "Failed to vibrate.", e); 71 } 72 } 73 74 /** 75 * @hide 76 */ 77 @Override vibrate(int uid, String opPkg, long[] pattern, int repeat, AudioAttributes attributes)78 public void vibrate(int uid, String opPkg, long[] pattern, int repeat, 79 AudioAttributes attributes) { 80 if (mService == null) { 81 Log.w(TAG, "Failed to vibrate; no vibrator service."); 82 return; 83 } 84 // catch this here because the server will do nothing. pattern may 85 // not be null, let that be checked, because the server will drop it 86 // anyway 87 if (repeat < pattern.length) { 88 try { 89 mService.vibratePattern(uid, opPkg, pattern, repeat, usageForAttributes(attributes), 90 mToken); 91 } catch (RemoteException e) { 92 Log.w(TAG, "Failed to vibrate.", e); 93 } 94 } else { 95 throw new ArrayIndexOutOfBoundsException(); 96 } 97 } 98 usageForAttributes(AudioAttributes attributes)99 private static int usageForAttributes(AudioAttributes attributes) { 100 return attributes != null ? attributes.getUsage() : AudioAttributes.USAGE_UNKNOWN; 101 } 102 103 @Override cancel()104 public void cancel() { 105 if (mService == null) { 106 return; 107 } 108 try { 109 mService.cancelVibrate(mToken); 110 } catch (RemoteException e) { 111 Log.w(TAG, "Failed to cancel vibration.", e); 112 } 113 } 114 } 115