SystemVibrator.java revision f265ea9d8307282ff1da3915978625a94fc2859e 
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
17package android.os;
18
19import android.app.ActivityThread;
20import android.content.Context;
21import android.util.Log;
22
23/**
24 * Vibrator implementation that controls the main system vibrator.
25 *
26 * @hide
27 */
28public 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.getBasePackageName();
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