Home | History | Annotate | Download | only in os 
      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.app.ActivityThread;
     20 import android.content.Context;
     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 String mPackageName;
     32     private final IVibratorService mService;
     33     private final Binder mToken = new Binder();
     34 
     35     public SystemVibrator() {
     36         mPackageName = ActivityThread.currentPackageName();
     37         mService = IVibratorService.Stub.asInterface(
     38                 ServiceManager.getService("vibrator"));
     39     }
     40 
     41     public SystemVibrator(Context context) {
     42         mPackageName = context.getOpPackageName();
     43         mService = IVibratorService.Stub.asInterface(
     44                 ServiceManager.getService("vibrator"));
     45     }
     46 
     47     @Override
     48     public boolean hasVibrator() {
     49         if (mService == null) {
     50             Log.w(TAG, "Failed to vibrate; no vibrator service.");
     51             return false;
     52         }
     53         try {
     54             return mService.hasVibrator();
     55         } catch (RemoteException e) {
     56         }
     57         return false;
     58     }
     59 
     60     @Override
     61     public void vibrate(long milliseconds) {
     62         vibrate(Process.myUid(), mPackageName, milliseconds);
     63     }
     64 
     65     @Override
     66     public void vibrate(long[] pattern, int repeat) {
     67         vibrate(Process.myUid(), mPackageName, pattern, repeat);
     68     }
     69 
     70     /**
     71      * @hide
     72      */
     73     @Override
     74     public void vibrate(int owningUid, String owningPackage, long milliseconds) {
     75         if (mService == null) {
     76             Log.w(TAG, "Failed to vibrate; no vibrator service.");
     77             return;
     78         }
     79         try {
     80             mService.vibrate(owningUid, owningPackage, milliseconds, mToken);
     81         } catch (RemoteException e) {
     82             Log.w(TAG, "Failed to vibrate.", e);
     83         }
     84     }
     85 
     86     /**
     87      * @hide
     88      */
     89     @Override
     90     public void vibrate(int owningUid, String owningPackage, long[] pattern, int repeat) {
     91         if (mService == null) {
     92             Log.w(TAG, "Failed to vibrate; no vibrator service.");
     93             return;
     94         }
     95         // catch this here because the server will do nothing.  pattern may
     96         // not be null, let that be checked, because the server will drop it
     97         // anyway
     98         if (repeat < pattern.length) {
     99             try {
    100                 mService.vibratePattern(owningUid, owningPackage, pattern, repeat, mToken);
    101             } catch (RemoteException e) {
    102                 Log.w(TAG, "Failed to vibrate.", e);
    103             }
    104         } else {
    105             throw new ArrayIndexOutOfBoundsException();
    106         }
    107     }
    108 
    109     @Override
    110     public void cancel() {
    111         if (mService == null) {
    112             return;
    113         }
    114         try {
    115             mService.cancelVibrate(mToken);
    116         } catch (RemoteException e) {
    117             Log.w(TAG, "Failed to cancel vibration.", e);
    118         }
    119     }
    120 }
    121