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 handleMediaKeyEvent(event); 107 return true; 108 } 109 110 case KeyEvent.KEYCODE_CALL: { 111 if (getKeyguardManager().inKeyguardRestrictedInputMode() || dispatcher == null) { 112 break; 113 } 114 if (event.getRepeatCount() == 0) { 115 dispatcher.startTracking(event, this); 116 } else if (event.isLongPress() && dispatcher.isTracking(event)) { 117 dispatcher.performedLongPress(event); 118 mView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 119 // launch the VoiceDialer 120 Intent intent = new Intent(Intent.ACTION_VOICE_COMMAND); 121 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 122 try { 123 sendCloseSystemWindows(); 124 mContext.startActivity(intent); 125 } catch (ActivityNotFoundException e) { 126 startCallActivity(); 127 } 128 } 129 return true; 130 } 131 132 case KeyEvent.KEYCODE_CAMERA: { 133 if (getKeyguardManager().inKeyguardRestrictedInputMode() || dispatcher == null) { 134 break; 135 } 136 if (event.getRepeatCount() == 0) { 137 dispatcher.startTracking(event, this); 138 } else if (event.isLongPress() && dispatcher.isTracking(event)) { 139 dispatcher.performedLongPress(event); 140 mView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 141 sendCloseSystemWindows(); 142 // Broadcast an intent that the Camera button was longpressed 143 Intent intent = new Intent(Intent.ACTION_CAMERA_BUTTON, null); 144 intent.putExtra(Intent.EXTRA_KEY_EVENT, event); 145 mContext.sendOrderedBroadcastAsUser(intent, UserHandle.CURRENT_OR_SELF, 146 null, null, null, 0, null, null); 147 } 148 return true; 149 } 150 151 case KeyEvent.KEYCODE_SEARCH: { 152 if (getKeyguardManager().inKeyguardRestrictedInputMode() || dispatcher == null) { 153 break; 154 } 155 if (event.getRepeatCount() == 0) { 156 dispatcher.startTracking(event, this); 157 } else if (event.isLongPress() && dispatcher.isTracking(event)) { 158 Configuration config = mContext.getResources().getConfiguration(); 159 if (config.keyboard == Configuration.KEYBOARD_NOKEYS 160 || config.hardKeyboardHidden == Configuration.HARDKEYBOARDHIDDEN_YES) { 161 // launch the search activity 162 Intent intent = new Intent(Intent.ACTION_SEARCH_LONG_PRESS); 163 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 164 try { 165 mView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 166 sendCloseSystemWindows(); 167 getSearchManager().stopSearch(); 168 mContext.startActivity(intent); 169 // Only clear this if we successfully start the 170 // activity; otherwise we will allow the normal short 171 // press action to be performed. 172 dispatcher.performedLongPress(event); 173 return true; 174 } catch (ActivityNotFoundException e) { 175 // Ignore 176 } 177 } 178 } 179 break; 180 } 181 } 182 return false; 183 } 184 185 boolean onKeyUp(int keyCode, KeyEvent event) { 186 if (DEBUG) { 187 Slog.d(TAG, "up " + keyCode); 188 } 189 final KeyEvent.DispatcherState dispatcher = mView.getKeyDispatcherState(); 190 if (dispatcher != null) { 191 dispatcher.handleUpEvent(event); 192 } 193 194 switch (keyCode) { 195 case KeyEvent.KEYCODE_VOLUME_UP: 196 case KeyEvent.KEYCODE_VOLUME_DOWN: 197 case KeyEvent.KEYCODE_VOLUME_MUTE: { 198 if (!event.isCanceled()) { 199 AudioManager audioManager = (AudioManager)mContext.getSystemService( 200 Context.AUDIO_SERVICE); 201 if (audioManager != null) { 202 getAudioManager().handleKeyUp(event, AudioManager.USE_DEFAULT_STREAM_TYPE); 203 } 204 } 205 return true; 206 } 207 208 case KeyEvent.KEYCODE_HEADSETHOOK: 209 case KeyEvent.KEYCODE_MUTE: 210 case KeyEvent.KEYCODE_MEDIA_PLAY: 211 case KeyEvent.KEYCODE_MEDIA_PAUSE: 212 case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE: 213 case KeyEvent.KEYCODE_MEDIA_STOP: 214 case KeyEvent.KEYCODE_MEDIA_NEXT: 215 case KeyEvent.KEYCODE_MEDIA_PREVIOUS: 216 case KeyEvent.KEYCODE_MEDIA_REWIND: 217 case KeyEvent.KEYCODE_MEDIA_RECORD: 218 case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD: { 219 handleMediaKeyEvent(event); 220 return true; 221 } 222 223 case KeyEvent.KEYCODE_CAMERA: { 224 if (getKeyguardManager().inKeyguardRestrictedInputMode()) { 225 break; 226 } 227 if (event.isTracking() && !event.isCanceled()) { 228 // Add short press behavior here if desired 229 } 230 return true; 231 } 232 233 case KeyEvent.KEYCODE_CALL: { 234 if (getKeyguardManager().inKeyguardRestrictedInputMode()) { 235 break; 236 } 237 if (event.isTracking() && !event.isCanceled()) { 238 startCallActivity(); 239 } 240 return true; 241 } 242 } 243 return false; 244 } 245 246 void startCallActivity() { 247 sendCloseSystemWindows(); 248 Intent intent = new Intent(Intent.ACTION_CALL_BUTTON); 249 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 250 try { 251 mContext.startActivity(intent); 252 } catch (ActivityNotFoundException e) { 253 Slog.w(TAG, "No activity found for android.intent.action.CALL_BUTTON."); 254 } 255 } 256 257 SearchManager getSearchManager() { 258 if (mSearchManager == null) { 259 mSearchManager = (SearchManager) mContext.getSystemService(Context.SEARCH_SERVICE); 260 } 261 return mSearchManager; 262 } 263 264 TelephonyManager getTelephonyManager() { 265 if (mTelephonyManager == null) { 266 mTelephonyManager = (TelephonyManager)mContext.getSystemService( 267 Context.TELEPHONY_SERVICE); 268 } 269 return mTelephonyManager; 270 } 271 272 KeyguardManager getKeyguardManager() { 273 if (mKeyguardManager == null) { 274 mKeyguardManager = (KeyguardManager)mContext.getSystemService(Context.KEYGUARD_SERVICE); 275 } 276 return mKeyguardManager; 277 } 278 279 AudioManager getAudioManager() { 280 if (mAudioManager == null) { 281 mAudioManager = (AudioManager)mContext.getSystemService(Context.AUDIO_SERVICE); 282 } 283 return mAudioManager; 284 } 285 286 void sendCloseSystemWindows() { 287 PhoneWindowManager.sendCloseSystemWindows(mContext, null); 288 } 289 290 private void handleMediaKeyEvent(KeyEvent keyEvent) { 291 IAudioService audioService = IAudioService.Stub.asInterface( 292 ServiceManager.checkService(Context.AUDIO_SERVICE)); 293 if (audioService != null) { 294 try { 295 audioService.dispatchMediaKeyEvent(keyEvent); 296 } catch (RemoteException e) { 297 Log.e(TAG, "dispatchMediaKeyEvent threw exception " + e); 298 } 299 } else { 300 Slog.w(TAG, "Unable to find IAudioService for media key event."); 301 } 302 } 303} 304 305