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