Home | History | Annotate | Download | only in policy 
      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(
     88                         event, AudioManager.USE_DEFAULT_STREAM_TYPE, false);
     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 (getKeyguardManager().inKeyguardRestrictedInputMode() || dispatcher == null) {
    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 (getKeyguardManager().inKeyguardRestrictedInputMode() || dispatcher == null) {
    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 (getKeyguardManager().inKeyguardRestrictedInputMode() || dispatcher == null) {
    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     boolean onKeyUp(int keyCode, KeyEvent event) {
    206         if (DEBUG) {
    207             Log.d(TAG, "up " + keyCode);
    208         }
    209         final KeyEvent.DispatcherState dispatcher = mView.getKeyDispatcherState();
    210         if (dispatcher != null) {
    211             dispatcher.handleUpEvent(event);
    212         }
    213 
    214         switch (keyCode) {
    215             case KeyEvent.KEYCODE_VOLUME_UP:
    216             case KeyEvent.KEYCODE_VOLUME_DOWN:
    217             case KeyEvent.KEYCODE_VOLUME_MUTE: {
    218                 if (!event.isCanceled()) {
    219                     MediaSessionLegacyHelper.getHelper(mContext).sendVolumeKeyEvent(
    220                             event, AudioManager.USE_DEFAULT_STREAM_TYPE, false);
    221                 }
    222                 return true;
    223             }
    224 
    225             case KeyEvent.KEYCODE_HEADSETHOOK:
    226             case KeyEvent.KEYCODE_MUTE:
    227             case KeyEvent.KEYCODE_MEDIA_PLAY:
    228             case KeyEvent.KEYCODE_MEDIA_PAUSE:
    229             case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
    230             case KeyEvent.KEYCODE_MEDIA_STOP:
    231             case KeyEvent.KEYCODE_MEDIA_NEXT:
    232             case KeyEvent.KEYCODE_MEDIA_PREVIOUS:
    233             case KeyEvent.KEYCODE_MEDIA_REWIND:
    234             case KeyEvent.KEYCODE_MEDIA_RECORD:
    235             case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD:
    236             case KeyEvent.KEYCODE_MEDIA_AUDIO_TRACK: {
    237                 handleMediaKeyEvent(event);
    238                 return true;
    239             }
    240 
    241             case KeyEvent.KEYCODE_CAMERA: {
    242                 if (getKeyguardManager().inKeyguardRestrictedInputMode()) {
    243                     break;
    244                 }
    245                 if (event.isTracking() && !event.isCanceled()) {
    246                     // Add short press behavior here if desired
    247                 }
    248                 return true;
    249             }
    250 
    251             case KeyEvent.KEYCODE_CALL: {
    252                 if (getKeyguardManager().inKeyguardRestrictedInputMode()) {
    253                     break;
    254                 }
    255                 if (event.isTracking() && !event.isCanceled()) {
    256                     if (isUserSetupComplete()) {
    257                         startCallActivity();
    258                     } else {
    259                         Log.i(TAG, "Not starting call activity because user "
    260                                 + "setup is in progress.");
    261                     }
    262                 }
    263                 return true;
    264             }
    265         }
    266         return false;
    267     }
    268 
    269     void startCallActivity() {
    270         sendCloseSystemWindows();
    271         Intent intent = new Intent(Intent.ACTION_CALL_BUTTON);
    272         intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    273         try {
    274             mContext.startActivity(intent);
    275         } catch (ActivityNotFoundException e) {
    276             Log.w(TAG, "No activity found for android.intent.action.CALL_BUTTON.");
    277         }
    278     }
    279 
    280     SearchManager getSearchManager() {
    281         if (mSearchManager == null) {
    282             mSearchManager = (SearchManager) mContext.getSystemService(Context.SEARCH_SERVICE);
    283         }
    284         return mSearchManager;
    285     }
    286 
    287     TelephonyManager getTelephonyManager() {
    288         if (mTelephonyManager == null) {
    289             mTelephonyManager = (TelephonyManager)mContext.getSystemService(
    290                     Context.TELEPHONY_SERVICE);
    291         }
    292         return mTelephonyManager;
    293     }
    294 
    295     KeyguardManager getKeyguardManager() {
    296         if (mKeyguardManager == null) {
    297             mKeyguardManager = (KeyguardManager)mContext.getSystemService(Context.KEYGUARD_SERVICE);
    298         }
    299         return mKeyguardManager;
    300     }
    301 
    302     AudioManager getAudioManager() {
    303         if (mAudioManager == null) {
    304             mAudioManager = (AudioManager)mContext.getSystemService(Context.AUDIO_SERVICE);
    305         }
    306         return mAudioManager;
    307     }
    308 
    309     void sendCloseSystemWindows() {
    310         PhoneWindow.sendCloseSystemWindows(mContext, null);
    311     }
    312 
    313     private void handleMediaKeyEvent(KeyEvent keyEvent) {
    314         MediaSessionLegacyHelper.getHelper(mContext).sendMediaButtonEvent(keyEvent, false);
    315     }
    316 
    317     private boolean isUserSetupComplete() {
    318         return Settings.Secure.getInt(mContext.getContentResolver(),
    319                 Settings.Secure.USER_SETUP_COMPLETE, 0) != 0;
    320     }
    321 }
    322 
    323