VoiceInteractionSessionService.java revision 18f0d357f9693fe787a3e3777d8fdf01357a6e3f 
1/**
2 * Copyright (C) 2014 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.service.voice;
18
19import android.app.Service;
20import android.content.Context;
21import android.content.Intent;
22import android.os.Bundle;
23import android.os.IBinder;
24import android.os.Looper;
25import android.os.Message;
26import android.os.RemoteException;
27import android.os.ServiceManager;
28import com.android.internal.app.IVoiceInteractionManagerService;
29import com.android.internal.os.HandlerCaller;
30import com.android.internal.os.SomeArgs;
31
32public abstract class VoiceInteractionSessionService extends Service {
33
34    static final int MSG_NEW_SESSION = 1;
35
36    IVoiceInteractionManagerService mSystemService;
37
38    IVoiceInteractionSessionService mInterface = new IVoiceInteractionSessionService.Stub() {
39        public void newSession(IBinder token, Bundle args) {
40            mHandlerCaller.sendMessage(mHandlerCaller.obtainMessageOO(MSG_NEW_SESSION,
41                    token, args));
42
43        }
44    };
45
46    HandlerCaller mHandlerCaller;
47    final HandlerCaller.Callback mHandlerCallerCallback = new HandlerCaller.Callback() {
48        @Override
49        public void executeMessage(Message msg) {
50            SomeArgs args = (SomeArgs)msg.obj;
51            switch (msg.what) {
52                case MSG_NEW_SESSION:
53                    doNewSession((IBinder)args.arg1, (Bundle)args.arg2);
54                    break;
55            }
56        }
57    };
58
59    @Override
60    public void onCreate() {
61        super.onCreate();
62        mSystemService = IVoiceInteractionManagerService.Stub.asInterface(
63                ServiceManager.getService(Context.VOICE_INTERACTION_MANAGER_SERVICE));
64        mHandlerCaller = new HandlerCaller(this, Looper.myLooper(),
65                mHandlerCallerCallback, true);
66    }
67
68    public abstract VoiceInteractionSession onNewSession(Bundle args);
69
70    @Override
71    public IBinder onBind(Intent intent) {
72        return mInterface.asBinder();
73    }
74
75    void doNewSession(IBinder token, Bundle args) {
76        VoiceInteractionSession session = onNewSession(args);
77        try {
78            mSystemService.deliverNewSession(token, session.mSession, session.mInteractor);
79        } catch (RemoteException e) {
80        }
81    }
82}
83