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      1 /*
      2  * Copyright (C) 2008 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.internal.policy;
     18 
     19 import android.app.KeyguardManager;
     20 import android.app.SearchManager;
     21 import android.content.ActivityNotFoundException;
     22 import android.content.Context;
     23 import android.content.Intent;
     24 import android.content.res.Configuration;
     25 import android.media.AudioManager;
     26 import android.media.session.MediaSessionManager;
     27 import android.os.UserHandle;
     28 import android.provider.Settings;
     29 import android.telephony.TelephonyManager;
     30 import android.util.Log;
     31 import android.view.FallbackEventHandler;
     32 import android.view.HapticFeedbackConstants;
     33 import android.view.KeyEvent;
     34 import android.view.View;
     35 import com.android.internal.policy.PhoneWindow;
     36 
     37 /**
     38  * @hide
     39  */
     40 public class PhoneFallbackEventHandler implements FallbackEventHandler {
     41     private static String TAG = "PhoneFallbackEventHandler";
     42     private static final boolean DEBUG = false;
     43 
     44     Context mContext;
     45     View mView;
     46 
     47     AudioManager mAudioManager;
     48     KeyguardManager mKeyguardManager;
     49     SearchManager mSearchManager;
     50     TelephonyManager mTelephonyManager;
     51     MediaSessionManager mMediaSessionManager;
     52 
     53     public PhoneFallbackEventHandler(Context context) {
     54         mContext = context;
     55     }
     56 
     57     public void setView(View v) {
     58         mView = v;
     59     }
     60 
     61     public void preDispatchKeyEvent(KeyEvent event) {
     62         getAudioManager().preDispatchKeyEvent(event, AudioManager.USE_DEFAULT_STREAM_TYPE);
     63     }
     64 
     65     public boolean dispatchKeyEvent(KeyEvent event) {
     66 
     67         final int action = event.getAction();
     68         final int keyCode = event.getKeyCode();
     69 
     70         if (action == KeyEvent.ACTION_DOWN) {
     71             return onKeyDown(keyCode, event);
     72         } else {
     73             return onKeyUp(keyCode, event);
     74         }
     75     }
     76 
     77     boolean onKeyDown(int keyCode, KeyEvent event) {
     78         /* ****************************************************************************
     79          * HOW TO DECIDE WHERE YOUR KEY HANDLING GOES.
     80          * See the comment in PhoneWindow.onKeyDown
     81          * ****************************************************************************/
     82         final KeyEvent.DispatcherState dispatcher = mView.getKeyDispatcherState();
     83 
     84         switch (keyCode) {
     85             case KeyEvent.KEYCODE_VOLUME_UP:
     86             case KeyEvent.KEYCODE_VOLUME_DOWN:
     87             case KeyEvent.KEYCODE_VOLUME_MUTE: {
     88                 handleVolumeKeyEvent(event);
     89                 return true;
     90             }
     91 
     92 
     93             case KeyEvent.KEYCODE_MEDIA_PLAY:
     94             case KeyEvent.KEYCODE_MEDIA_PAUSE:
     95             case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
     96                 /* Suppress PLAY/PAUSE toggle when phone is ringing or in-call
     97                  * to avoid music playback */
     98                 if (getTelephonyManager().getCallState() != TelephonyManager.CALL_STATE_IDLE) {
     99                     return true;  // suppress key event
    100                 }
    101             case KeyEvent.KEYCODE_MUTE:
    102             case KeyEvent.KEYCODE_HEADSETHOOK:
    103             case KeyEvent.KEYCODE_MEDIA_STOP:
    104             case KeyEvent.KEYCODE_MEDIA_NEXT:
    105             case KeyEvent.KEYCODE_MEDIA_PREVIOUS:
    106             case KeyEvent.KEYCODE_MEDIA_REWIND:
    107             case KeyEvent.KEYCODE_MEDIA_RECORD:
    108             case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD:
    109             case KeyEvent.KEYCODE_MEDIA_AUDIO_TRACK: {
    110                 handleMediaKeyEvent(event);
    111                 return true;
    112             }
    113 
    114             case KeyEvent.KEYCODE_CALL: {
    115                 if (isNotInstantAppAndKeyguardRestricted(dispatcher)) {
    116                     break;
    117                 }
    118                 if (event.getRepeatCount() == 0) {
    119                     dispatcher.startTracking(event, this);
    120                 } else if (event.isLongPress() && dispatcher.isTracking(event)) {
    121                     dispatcher.performedLongPress(event);
    122                     if (isUserSetupComplete()) {
    123                         mView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
    124                         // launch the VoiceDialer
    125                         Intent intent = new Intent(Intent.ACTION_VOICE_COMMAND);
    126                         intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    127                         try {
    128                             sendCloseSystemWindows();
    129                             mContext.startActivity(intent);
    130                         } catch (ActivityNotFoundException e) {
    131                             startCallActivity();
    132                         }
    133                     } else {
    134                         Log.i(TAG, "Not starting call activity because user "
    135                                 + "setup is in progress.");
    136                     }
    137                 }
    138                 return true;
    139             }
    140 
    141             case KeyEvent.KEYCODE_CAMERA: {
    142                 if (isNotInstantAppAndKeyguardRestricted(dispatcher)) {
    143                     break;
    144                 }
    145                 if (event.getRepeatCount() == 0) {
    146                     dispatcher.startTracking(event, this);
    147                 } else if (event.isLongPress() && dispatcher.isTracking(event)) {
    148                     dispatcher.performedLongPress(event);
    149                     if (isUserSetupComplete()) {
    150                         mView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
    151                         sendCloseSystemWindows();
    152                         // Broadcast an intent that the Camera button was longpressed
    153                         Intent intent = new Intent(Intent.ACTION_CAMERA_BUTTON, null);
    154                         intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
    155                         intent.putExtra(Intent.EXTRA_KEY_EVENT, event);
    156                         mContext.sendOrderedBroadcastAsUser(intent, UserHandle.CURRENT_OR_SELF,
    157                                 null, null, null, 0, null, null);
    158                     } else {
    159                         Log.i(TAG, "Not dispatching CAMERA long press because user "
    160                                 + "setup is in progress.");
    161                     }
    162                 }
    163                 return true;
    164             }
    165 
    166             case KeyEvent.KEYCODE_SEARCH: {
    167                 if (isNotInstantAppAndKeyguardRestricted(dispatcher)) {
    168                     break;
    169                 }
    170                 if (event.getRepeatCount() == 0) {
    171                     dispatcher.startTracking(event, this);
    172                 } else if (event.isLongPress() && dispatcher.isTracking(event)) {
    173                     Configuration config = mContext.getResources().getConfiguration();
    174                     if (config.keyboard == Configuration.KEYBOARD_NOKEYS
    175                             || config.hardKeyboardHidden == Configuration.HARDKEYBOARDHIDDEN_YES) {
    176                         if (isUserSetupComplete()) {
    177                             // launch the search activity
    178                             Intent intent = new Intent(Intent.ACTION_SEARCH_LONG_PRESS);
    179                             intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    180                             try {
    181                                 mView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
    182                                 sendCloseSystemWindows();
    183                                 getSearchManager().stopSearch();
    184                                 mContext.startActivity(intent);
    185                                 // Only clear this if we successfully start the
    186                                 // activity; otherwise we will allow the normal short
    187                                 // press action to be performed.
    188                                 dispatcher.performedLongPress(event);
    189                                 return true;
    190                             } catch (ActivityNotFoundException e) {
    191                                 // Ignore
    192                             }
    193                         } else {
    194                             Log.i(TAG, "Not dispatching SEARCH long press because user "
    195                                     + "setup is in progress.");
    196                         }
    197                     }
    198                 }
    199                 break;
    200             }
    201         }
    202         return false;
    203     }
    204 
    205     private boolean isNotInstantAppAndKeyguardRestricted(KeyEvent.DispatcherState dispatcher) {
    206         return !mContext.getPackageManager().isInstantApp()
    207                 && (getKeyguardManager().inKeyguardRestrictedInputMode() || dispatcher == null);
    208     }
    209 
    210     boolean onKeyUp(int keyCode, KeyEvent event) {
    211         if (DEBUG) {
    212             Log.d(TAG, "up " + keyCode);
    213         }
    214         final KeyEvent.DispatcherState dispatcher = mView.getKeyDispatcherState();
    215         if (dispatcher != null) {
    216             dispatcher.handleUpEvent(event);
    217         }
    218 
    219         switch (keyCode) {
    220             case KeyEvent.KEYCODE_VOLUME_UP:
    221             case KeyEvent.KEYCODE_VOLUME_DOWN:
    222             case KeyEvent.KEYCODE_VOLUME_MUTE: {
    223                 if (!event.isCanceled()) {
    224                     handleVolumeKeyEvent(event);
    225                 }
    226                 return true;
    227             }
    228 
    229             case KeyEvent.KEYCODE_HEADSETHOOK:
    230             case KeyEvent.KEYCODE_MUTE:
    231             case KeyEvent.KEYCODE_MEDIA_PLAY:
    232             case KeyEvent.KEYCODE_MEDIA_PAUSE:
    233             case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
    234             case KeyEvent.KEYCODE_MEDIA_STOP:
    235             case KeyEvent.KEYCODE_MEDIA_NEXT:
    236             case KeyEvent.KEYCODE_MEDIA_PREVIOUS:
    237             case KeyEvent.KEYCODE_MEDIA_REWIND:
    238             case KeyEvent.KEYCODE_MEDIA_RECORD:
    239             case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD:
    240             case KeyEvent.KEYCODE_MEDIA_AUDIO_TRACK: {
    241                 handleMediaKeyEvent(event);
    242                 return true;
    243             }
    244 
    245             case KeyEvent.KEYCODE_CAMERA: {
    246                 if (isNotInstantAppAndKeyguardRestricted(dispatcher)) {
    247                     break;
    248                 }
    249                 if (event.isTracking() && !event.isCanceled()) {
    250                     // Add short press behavior here if desired
    251                 }
    252                 return true;
    253             }
    254 
    255             case KeyEvent.KEYCODE_CALL: {
    256                 if (isNotInstantAppAndKeyguardRestricted(dispatcher)) {
    257                     break;
    258                 }
    259                 if (event.isTracking() && !event.isCanceled()) {
    260                     if (isUserSetupComplete()) {
    261                         startCallActivity();
    262                     } else {
    263                         Log.i(TAG, "Not starting call activity because user "
    264                                 + "setup is in progress.");
    265                     }
    266                 }
    267                 return true;
    268             }
    269         }
    270         return false;
    271     }
    272 
    273     void startCallActivity() {
    274         sendCloseSystemWindows();
    275         Intent intent = new Intent(Intent.ACTION_CALL_BUTTON);
    276         intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    277         try {
    278             mContext.startActivity(intent);
    279         } catch (ActivityNotFoundException e) {
    280             Log.w(TAG, "No activity found for android.intent.action.CALL_BUTTON.");
    281         }
    282     }
    283 
    284     SearchManager getSearchManager() {
    285         if (mSearchManager == null) {
    286             mSearchManager = (SearchManager) mContext.getSystemService(Context.SEARCH_SERVICE);
    287         }
    288         return mSearchManager;
    289     }
    290 
    291     TelephonyManager getTelephonyManager() {
    292         if (mTelephonyManager == null) {
    293             mTelephonyManager = (TelephonyManager)mContext.getSystemService(
    294                     Context.TELEPHONY_SERVICE);
    295         }
    296         return mTelephonyManager;
    297     }
    298 
    299     KeyguardManager getKeyguardManager() {
    300         if (mKeyguardManager == null) {
    301             mKeyguardManager = (KeyguardManager)mContext.getSystemService(Context.KEYGUARD_SERVICE);
    302         }
    303         return mKeyguardManager;
    304     }
    305 
    306     AudioManager getAudioManager() {
    307         if (mAudioManager == null) {
    308             mAudioManager = (AudioManager)mContext.getSystemService(Context.AUDIO_SERVICE);
    309         }
    310         return mAudioManager;
    311     }
    312 
    313     MediaSessionManager getMediaSessionManager() {
    314         if (mMediaSessionManager == null) {
    315             mMediaSessionManager =
    316                     (MediaSessionManager) mContext.getSystemService(Context.MEDIA_SESSION_SERVICE);
    317         }
    318         return mMediaSessionManager;
    319     }
    320 
    321     void sendCloseSystemWindows() {
    322         PhoneWindow.sendCloseSystemWindows(mContext, null);
    323     }
    324 
    325     private void handleVolumeKeyEvent(KeyEvent keyEvent) {
    326         getMediaSessionManager().dispatchVolumeKeyEventAsSystemService(keyEvent,
    327                 AudioManager.USE_DEFAULT_STREAM_TYPE);
    328     }
    329 
    330     private void handleMediaKeyEvent(KeyEvent keyEvent) {
    331         getMediaSessionManager().dispatchMediaKeyEventAsSystemService(keyEvent);
    332     }
    333 
    334     private boolean isUserSetupComplete() {
    335         return Settings.Secure.getInt(mContext.getContentResolver(),
    336                 Settings.Secure.USER_SETUP_COMPLETE, 0) != 0;
    337     }
    338 }
    339 
    340