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