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