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 17package com.android.internal.policy.impl; 18 19import android.app.KeyguardManager; 20import android.app.SearchManager; 21import android.content.ActivityNotFoundException; 22import android.content.Context; 23import android.content.Intent; 24import android.content.res.Configuration; 25import android.media.AudioManager; 26import android.media.IAudioService; 27import android.os.RemoteException; 28import android.os.ServiceManager; 29import android.os.UserHandle; 30import android.telephony.TelephonyManager; 31import android.util.Log; 32import android.util.Slog; 33import android.view.View; 34import android.view.HapticFeedbackConstants; 35import android.view.FallbackEventHandler; 36import android.view.KeyEvent; 37 38public class PhoneFallbackEventHandler implements FallbackEventHandler { 39 private static String TAG = "PhoneFallbackEventHandler"; 40 private static final boolean DEBUG = false; 41 42 Context mContext; 43 View mView; 44 45 AudioManager mAudioManager; 46 KeyguardManager mKeyguardManager; 47 SearchManager mSearchManager; 48 TelephonyManager mTelephonyManager; 49 50 public PhoneFallbackEventHandler(Context context) { 51 mContext = context; 52 } 53 54 public void setView(View v) { 55 mView = v; 56 } 57 58 public void preDispatchKeyEvent(KeyEvent event) { 59 getAudioManager().preDispatchKeyEvent(event, AudioManager.USE_DEFAULT_STREAM_TYPE); 60 } 61 62 public boolean dispatchKeyEvent(KeyEvent event) { 63 64 final int action = event.getAction(); 65 final int keyCode = event.getKeyCode(); 66 67 if (action == KeyEvent.ACTION_DOWN) { 68 return onKeyDown(keyCode, event); 69 } else { 70 return onKeyUp(keyCode, event); 71 } 72 } 73 74 boolean onKeyDown(int keyCode, KeyEvent event) { 75 /* **************************************************************************** 76 * HOW TO DECIDE WHERE YOUR KEY HANDLING GOES. 77 * See the comment in PhoneWindow.onKeyDown 78 * ****************************************************************************/ 79 final KeyEvent.DispatcherState dispatcher = mView.getKeyDispatcherState(); 80 81 switch (keyCode) { 82 case KeyEvent.KEYCODE_VOLUME_UP: 83 case KeyEvent.KEYCODE_VOLUME_DOWN: 84 case KeyEvent.KEYCODE_VOLUME_MUTE: { 85 getAudioManager().handleKeyDown(event, AudioManager.USE_DEFAULT_STREAM_TYPE); 86 return true; 87 } 88 89 90 case KeyEvent.KEYCODE_MEDIA_PLAY: 91 case KeyEvent.KEYCODE_MEDIA_PAUSE: 92 case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE: 93 /* Suppress PLAY/PAUSE toggle when phone is ringing or in-call 94 * to avoid music playback */ 95 if (getTelephonyManager().getCallState() != TelephonyManager.CALL_STATE_IDLE) { 96 return true; // suppress key event 97 } 98 case KeyEvent.KEYCODE_MUTE: 99 case KeyEvent.KEYCODE_HEADSETHOOK: 100 case KeyEvent.KEYCODE_MEDIA_STOP: 101 case KeyEvent.KEYCODE_MEDIA_NEXT: 102 case KeyEvent.KEYCODE_MEDIA_PREVIOUS: 103 case KeyEvent.KEYCODE_MEDIA_REWIND: 104 case KeyEvent.KEYCODE_MEDIA_RECORD: 105 case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD: 106 case KeyEvent.KEYCODE_MEDIA_AUDIO_TRACK: { 107 handleMediaKeyEvent(event); 108 return true; 109 } 110 111 case KeyEvent.KEYCODE_CALL: { 112 if (getKeyguardManager().inKeyguardRestrictedInputMode() || dispatcher == null) { 113 break; 114 } 115 if (event.getRepeatCount() == 0) { 116 dispatcher.startTracking(event, this); 117 } else if (event.isLongPress() && dispatcher.isTracking(event)) { 118 dispatcher.performedLongPress(event); 119 mView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 120 // launch the VoiceDialer 121 Intent intent = new Intent(Intent.ACTION_VOICE_COMMAND); 122 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 123 try { 124 sendCloseSystemWindows(); 125 mContext.startActivity(intent); 126 } catch (ActivityNotFoundException e) { 127 startCallActivity(); 128 } 129 } 130 return true; 131 } 132 133 case KeyEvent.KEYCODE_CAMERA: { 134 if (getKeyguardManager().inKeyguardRestrictedInputMode() || dispatcher == null) { 135 break; 136 } 137 if (event.getRepeatCount() == 0) { 138 dispatcher.startTracking(event, this); 139 } else if (event.isLongPress() && dispatcher.isTracking(event)) { 140 dispatcher.performedLongPress(event); 141 mView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 142 sendCloseSystemWindows(); 143 // Broadcast an intent that the Camera button was longpressed 144 Intent intent = new Intent(Intent.ACTION_CAMERA_BUTTON, null); 145 intent.putExtra(Intent.EXTRA_KEY_EVENT, event); 146 mContext.sendOrderedBroadcastAsUser(intent, UserHandle.CURRENT_OR_SELF, 147 null, null, null, 0, null, null); 148 } 149 return true; 150 } 151 152 case KeyEvent.KEYCODE_SEARCH: { 153 if (getKeyguardManager().inKeyguardRestrictedInputMode() || dispatcher == null) { 154 break; 155 } 156 if (event.getRepeatCount() == 0) { 157 dispatcher.startTracking(event, this); 158 } else if (event.isLongPress() && dispatcher.isTracking(event)) { 159 Configuration config = mContext.getResources().getConfiguration(); 160 if (config.keyboard == Configuration.KEYBOARD_NOKEYS 161 || config.hardKeyboardHidden == Configuration.HARDKEYBOARDHIDDEN_YES) { 162 // launch the search activity 163 Intent intent = new Intent(Intent.ACTION_SEARCH_LONG_PRESS); 164 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 165 try { 166 mView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 167 sendCloseSystemWindows(); 168 getSearchManager().stopSearch(); 169 mContext.startActivity(intent); 170 // Only clear this if we successfully start the 171 // activity; otherwise we will allow the normal short 172 // press action to be performed. 173 dispatcher.performedLongPress(event); 174 return true; 175 } catch (ActivityNotFoundException e) { 176 // Ignore 177 } 178 } 179 } 180 break; 181 } 182 } 183 return false; 184 } 185 186 boolean onKeyUp(int keyCode, KeyEvent event) { 187 if (DEBUG) { 188 Slog.d(TAG, "up " + keyCode); 189 } 190 final KeyEvent.DispatcherState dispatcher = mView.getKeyDispatcherState(); 191 if (dispatcher != null) { 192 dispatcher.handleUpEvent(event); 193 } 194 195 switch (keyCode) { 196 case KeyEvent.KEYCODE_VOLUME_UP: 197 case KeyEvent.KEYCODE_VOLUME_DOWN: 198 case KeyEvent.KEYCODE_VOLUME_MUTE: { 199 if (!event.isCanceled()) { 200 AudioManager audioManager = (AudioManager)mContext.getSystemService( 201 Context.AUDIO_SERVICE); 202 if (audioManager != null) { 203 getAudioManager().handleKeyUp(event, AudioManager.USE_DEFAULT_STREAM_TYPE); 204 } 205 } 206 return true; 207 } 208 209 case KeyEvent.KEYCODE_HEADSETHOOK: 210 case KeyEvent.KEYCODE_MUTE: 211 case KeyEvent.KEYCODE_MEDIA_PLAY: 212 case KeyEvent.KEYCODE_MEDIA_PAUSE: 213 case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE: 214 case KeyEvent.KEYCODE_MEDIA_STOP: 215 case KeyEvent.KEYCODE_MEDIA_NEXT: 216 case KeyEvent.KEYCODE_MEDIA_PREVIOUS: 217 case KeyEvent.KEYCODE_MEDIA_REWIND: 218 case KeyEvent.KEYCODE_MEDIA_RECORD: 219 case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD: 220 case KeyEvent.KEYCODE_MEDIA_AUDIO_TRACK: { 221 handleMediaKeyEvent(event); 222 return true; 223 } 224 225 case KeyEvent.KEYCODE_CAMERA: { 226 if (getKeyguardManager().inKeyguardRestrictedInputMode()) { 227 break; 228 } 229 if (event.isTracking() && !event.isCanceled()) { 230 // Add short press behavior here if desired 231 } 232 return true; 233 } 234 235 case KeyEvent.KEYCODE_CALL: { 236 if (getKeyguardManager().inKeyguardRestrictedInputMode()) { 237 break; 238 } 239 if (event.isTracking() && !event.isCanceled()) { 240 startCallActivity(); 241 } 242 return true; 243 } 244 } 245 return false; 246 } 247 248 void startCallActivity() { 249 sendCloseSystemWindows(); 250 Intent intent = new Intent(Intent.ACTION_CALL_BUTTON); 251 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 252 try { 253 mContext.startActivity(intent); 254 } catch (ActivityNotFoundException e) { 255 Slog.w(TAG, "No activity found for android.intent.action.CALL_BUTTON."); 256 } 257 } 258 259 SearchManager getSearchManager() { 260 if (mSearchManager == null) { 261 mSearchManager = (SearchManager) mContext.getSystemService(Context.SEARCH_SERVICE); 262 } 263 return mSearchManager; 264 } 265 266 TelephonyManager getTelephonyManager() { 267 if (mTelephonyManager == null) { 268 mTelephonyManager = (TelephonyManager)mContext.getSystemService( 269 Context.TELEPHONY_SERVICE); 270 } 271 return mTelephonyManager; 272 } 273 274 KeyguardManager getKeyguardManager() { 275 if (mKeyguardManager == null) { 276 mKeyguardManager = (KeyguardManager)mContext.getSystemService(Context.KEYGUARD_SERVICE); 277 } 278 return mKeyguardManager; 279 } 280 281 AudioManager getAudioManager() { 282 if (mAudioManager == null) { 283 mAudioManager = (AudioManager)mContext.getSystemService(Context.AUDIO_SERVICE); 284 } 285 return mAudioManager; 286 } 287 288 void sendCloseSystemWindows() { 289 PhoneWindowManager.sendCloseSystemWindows(mContext, null); 290 } 291 292 private void handleMediaKeyEvent(KeyEvent keyEvent) { 293 IAudioService audioService = IAudioService.Stub.asInterface( 294 ServiceManager.checkService(Context.AUDIO_SERVICE)); 295 if (audioService != null) { 296 try { 297 audioService.dispatchMediaKeyEvent(keyEvent); 298 } catch (RemoteException e) { 299 Log.e(TAG, "dispatchMediaKeyEvent threw exception " + e); 300 } 301 } else { 302 Slog.w(TAG, "Unable to find IAudioService for media key event."); 303 } 304 } 305} 306 307