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.telephony.TelephonyManager; 30import android.util.EventLog; 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.sendOrderedBroadcast(intent, null); 146 } 147 return true; 148 } 149 150 case KeyEvent.KEYCODE_SEARCH: { 151 if (getKeyguardManager().inKeyguardRestrictedInputMode() || dispatcher == null) { 152 break; 153 } 154 if (event.getRepeatCount() == 0) { 155 dispatcher.startTracking(event, this); 156 } else if (event.isLongPress() && dispatcher.isTracking(event)) { 157 Configuration config = mContext.getResources().getConfiguration(); 158 if (config.keyboard == Configuration.KEYBOARD_NOKEYS 159 || config.hardKeyboardHidden == Configuration.HARDKEYBOARDHIDDEN_YES) { 160 // launch the search activity 161 Intent intent = new Intent(Intent.ACTION_SEARCH_LONG_PRESS); 162 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 163 try { 164 mView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 165 sendCloseSystemWindows(); 166 getSearchManager().stopSearch(); 167 mContext.startActivity(intent); 168 // Only clear this if we successfully start the 169 // activity; otherwise we will allow the normal short 170 // press action to be performed. 171 dispatcher.performedLongPress(event); 172 return true; 173 } catch (ActivityNotFoundException e) { 174 // Ignore 175 } 176 } 177 } 178 break; 179 } 180 } 181 return false; 182 } 183 184 boolean onKeyUp(int keyCode, KeyEvent event) { 185 if (DEBUG) { 186 Slog.d(TAG, "up " + keyCode); 187 } 188 final KeyEvent.DispatcherState dispatcher = mView.getKeyDispatcherState(); 189 if (dispatcher != null) { 190 dispatcher.handleUpEvent(event); 191 } 192 193 switch (keyCode) { 194 case KeyEvent.KEYCODE_VOLUME_UP: 195 case KeyEvent.KEYCODE_VOLUME_DOWN: 196 case KeyEvent.KEYCODE_VOLUME_MUTE: { 197 if (!event.isCanceled()) { 198 AudioManager audioManager = (AudioManager)mContext.getSystemService( 199 Context.AUDIO_SERVICE); 200 if (audioManager != null) { 201 getAudioManager().handleKeyUp(event, AudioManager.USE_DEFAULT_STREAM_TYPE); 202 } 203 } 204 return true; 205 } 206 207 case KeyEvent.KEYCODE_HEADSETHOOK: 208 case KeyEvent.KEYCODE_MUTE: 209 case KeyEvent.KEYCODE_MEDIA_PLAY: 210 case KeyEvent.KEYCODE_MEDIA_PAUSE: 211 case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE: 212 case KeyEvent.KEYCODE_MEDIA_STOP: 213 case KeyEvent.KEYCODE_MEDIA_NEXT: 214 case KeyEvent.KEYCODE_MEDIA_PREVIOUS: 215 case KeyEvent.KEYCODE_MEDIA_REWIND: 216 case KeyEvent.KEYCODE_MEDIA_RECORD: 217 case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD: { 218 handleMediaKeyEvent(event); 219 return true; 220 } 221 222 case KeyEvent.KEYCODE_CAMERA: { 223 if (getKeyguardManager().inKeyguardRestrictedInputMode()) { 224 break; 225 } 226 if (event.isTracking() && !event.isCanceled()) { 227 // Add short press behavior here if desired 228 } 229 return true; 230 } 231 232 case KeyEvent.KEYCODE_CALL: { 233 if (getKeyguardManager().inKeyguardRestrictedInputMode()) { 234 break; 235 } 236 if (event.isTracking() && !event.isCanceled()) { 237 startCallActivity(); 238 } 239 return true; 240 } 241 } 242 return false; 243 } 244 245 void startCallActivity() { 246 sendCloseSystemWindows(); 247 Intent intent = new Intent(Intent.ACTION_CALL_BUTTON); 248 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 249 try { 250 mContext.startActivity(intent); 251 } catch (ActivityNotFoundException e) { 252 Slog.w(TAG, "No activity found for android.intent.action.CALL_BUTTON."); 253 } 254 } 255 256 SearchManager getSearchManager() { 257 if (mSearchManager == null) { 258 mSearchManager = (SearchManager) mContext.getSystemService(Context.SEARCH_SERVICE); 259 } 260 return mSearchManager; 261 } 262 263 TelephonyManager getTelephonyManager() { 264 if (mTelephonyManager == null) { 265 mTelephonyManager = (TelephonyManager)mContext.getSystemService( 266 Context.TELEPHONY_SERVICE); 267 } 268 return mTelephonyManager; 269 } 270 271 KeyguardManager getKeyguardManager() { 272 if (mKeyguardManager == null) { 273 mKeyguardManager = (KeyguardManager)mContext.getSystemService(Context.KEYGUARD_SERVICE); 274 } 275 return mKeyguardManager; 276 } 277 278 AudioManager getAudioManager() { 279 if (mAudioManager == null) { 280 mAudioManager = (AudioManager)mContext.getSystemService(Context.AUDIO_SERVICE); 281 } 282 return mAudioManager; 283 } 284 285 void sendCloseSystemWindows() { 286 PhoneWindowManager.sendCloseSystemWindows(mContext, null); 287 } 288 289 private void handleMediaKeyEvent(KeyEvent keyEvent) { 290 IAudioService audioService = IAudioService.Stub.asInterface( 291 ServiceManager.checkService(Context.AUDIO_SERVICE)); 292 if (audioService != null) { 293 try { 294 audioService.dispatchMediaKeyEvent(keyEvent); 295 } catch (RemoteException e) { 296 Log.e(TAG, "dispatchMediaKeyEvent threw exception " + e); 297 } 298 } else { 299 Slog.w(TAG, "Unable to find IAudioService for media key event."); 300 } 301 } 302} 303 304