1 /*
2  * Copyright (C) 2015 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.tv.receiver;
18 
19 import android.content.BroadcastReceiver;
20 import android.content.Context;
21 import android.content.Intent;
22 import android.os.AsyncTask;
23 import android.provider.Settings;
24 import android.util.Log;
25 import android.view.KeyEvent;
26 import com.android.tv.Starter;
27 import com.android.tv.TvApplication;
28 import com.android.tv.TvSingletons;
29 
30 /** Handles global keys. */
31 public abstract class AbstractGlobalKeyReceiver extends BroadcastReceiver {
32     private static final boolean DEBUG = false;
33     private static final String TAG = "AbstractGlobalKeyReceiver";
34 
35     private static final String ACTION_GLOBAL_BUTTON = "android.intent.action.GLOBAL_BUTTON";
36     // Settings.Secure.USER_SETUP_COMPLETE is hidden.
37     private static final String SETTINGS_USER_SETUP_COMPLETE = "user_setup_complete";
38 
39     private static long sLastEventTime;
40     private static boolean sUserSetupComplete;
41 
42     @Override
onReceive(Context context, Intent intent)43     public void onReceive(Context context, Intent intent) {
44         if (!TvSingletons.getSingletons(context).getTvInputManagerHelper().hasTvInputManager()) {
45             Log.wtf(TAG, "Stopping because device does not have a TvInputManager");
46             return;
47         }
48         Starter.start(context);
49         Context appContext = context.getApplicationContext();
50         if (DEBUG) Log.d(TAG, "onReceive: " + intent);
51         if (sUserSetupComplete) {
52             handleIntent(appContext, intent);
53         } else {
54             new AsyncTask<Void, Void, Boolean>() {
55                 @Override
56                 protected Boolean doInBackground(Void... params) {
57                     return Settings.Secure.getInt(
58                                     appContext.getContentResolver(),
59                                     SETTINGS_USER_SETUP_COMPLETE,
60                                     0)
61                             != 0;
62                 }
63 
64                 @Override
65                 protected void onPostExecute(Boolean setupComplete) {
66                     if (DEBUG) Log.d(TAG, "Is setup complete: " + setupComplete);
67                     sUserSetupComplete = setupComplete;
68                     if (sUserSetupComplete) {
69                         handleIntent(appContext, intent);
70                     }
71                 }
72             }.execute();
73         }
74     }
75 
handleIntent(Context appContext, Intent intent)76     private void handleIntent(Context appContext, Intent intent) {
77         if (ACTION_GLOBAL_BUTTON.equals(intent.getAction())) {
78             KeyEvent event = intent.getParcelableExtra(Intent.EXTRA_KEY_EVENT);
79             if (DEBUG) Log.d(TAG, "handleIntent: " + event);
80             int keyCode = event.getKeyCode();
81             int action = event.getAction();
82             long eventTime = event.getEventTime();
83             if (action == KeyEvent.ACTION_UP && sLastEventTime != eventTime) {
84                 // Workaround for b/23947504, the same key event may be sent twice, filter it.
85                 sLastEventTime = eventTime;
86                 switch (keyCode) {
87                     case KeyEvent.KEYCODE_DVR:
88                         ((TvApplication) appContext).handleDvrKey();
89                         break;
90                     case KeyEvent.KEYCODE_GUIDE:
91                         ((TvApplication) appContext).handleGuideKey();
92                         break;
93                     case KeyEvent.KEYCODE_TV:
94                         ((TvApplication) appContext).handleTvKey();
95                         break;
96                     case KeyEvent.KEYCODE_TV_INPUT:
97                         ((TvApplication) appContext).handleTvInputKey();
98                         break;
99                     default:
100                         // Do nothing
101                         break;
102                 }
103             }
104         }
105     }
106 }
107