Jason Monk | d5a204f | 2015-12-21 08:50:01 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2015 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 | package com.android.systemui.qs.external; |
| 17 | |
Winson | c0d7058 | 2016-01-29 10:24:39 -0800 | [diff] [blame] | 18 | import libcore.util.Objects; |
| 19 | |
Jason Monk | d5a204f | 2015-12-21 08:50:01 -0500 | [diff] [blame] | 20 | import android.app.AppGlobals; |
| 21 | import android.content.BroadcastReceiver; |
| 22 | import android.content.ComponentName; |
| 23 | import android.content.Context; |
| 24 | import android.content.Intent; |
| 25 | import android.content.IntentFilter; |
| 26 | import android.content.ServiceConnection; |
| 27 | import android.content.pm.PackageManager; |
| 28 | import android.content.pm.ServiceInfo; |
| 29 | import android.net.Uri; |
| 30 | import android.os.Handler; |
| 31 | import android.os.IBinder; |
| 32 | import android.os.RemoteException; |
| 33 | import android.os.UserHandle; |
Jason Monk | fe8f682 | 2015-12-21 15:12:01 -0500 | [diff] [blame] | 34 | import android.service.quicksettings.IQSService; |
Jason Monk | d5a204f | 2015-12-21 08:50:01 -0500 | [diff] [blame] | 35 | import android.service.quicksettings.IQSTileService; |
| 36 | import android.service.quicksettings.Tile; |
| 37 | import android.support.annotation.VisibleForTesting; |
| 38 | import android.util.ArraySet; |
| 39 | import android.util.Log; |
Jason Monk | d5a204f | 2015-12-21 08:50:01 -0500 | [diff] [blame] | 40 | |
| 41 | import java.util.Set; |
| 42 | |
| 43 | /** |
| 44 | * Manages the lifecycle of a TileService. |
| 45 | * <p> |
| 46 | * Will keep track of all calls on the IQSTileService interface and will relay those calls to the |
| 47 | * TileService as soon as it is bound. It will only bind to the service when it is allowed to |
| 48 | * ({@link #setBindService(boolean)}) and when the service is available. |
| 49 | */ |
| 50 | public class TileLifecycleManager extends BroadcastReceiver implements |
| 51 | IQSTileService, ServiceConnection, IBinder.DeathRecipient { |
| 52 | public static final boolean DEBUG = false; |
| 53 | |
| 54 | private static final String TAG = "TileLifecycleManager"; |
| 55 | |
| 56 | private static final int MSG_ON_ADDED = 0; |
| 57 | private static final int MSG_ON_REMOVED = 1; |
| 58 | private static final int MSG_ON_CLICK = 2; |
Jason Monk | 9429513 | 2016-01-12 11:27:02 -0500 | [diff] [blame] | 59 | private static final int MSG_ON_UNLOCK_COMPLETE = 3; |
Jason Monk | d5a204f | 2015-12-21 08:50:01 -0500 | [diff] [blame] | 60 | |
| 61 | // Bind retry control. |
| 62 | private static final int MAX_BIND_RETRIES = 5; |
| 63 | private static final int BIND_RETRY_DELAY = 1000; |
| 64 | |
| 65 | private final Context mContext; |
| 66 | private final Handler mHandler; |
| 67 | private final Intent mIntent; |
| 68 | private final UserHandle mUser; |
| 69 | |
| 70 | private Set<Integer> mQueuedMessages = new ArraySet<>(); |
| 71 | private QSTileServiceWrapper mWrapper; |
| 72 | private boolean mListening; |
| 73 | private Tile mTile; |
| 74 | private IBinder mClickBinder; |
| 75 | |
| 76 | private int mBindTryCount; |
| 77 | private boolean mBound; |
| 78 | @VisibleForTesting |
| 79 | boolean mReceiverRegistered; |
Jason Monk | fe8f682 | 2015-12-21 15:12:01 -0500 | [diff] [blame] | 80 | private IQSService mService; |
Jason Monk | 51c444b | 2016-01-06 16:32:29 -0500 | [diff] [blame] | 81 | private boolean mUnbindImmediate; |
Jason Monk | d5a204f | 2015-12-21 08:50:01 -0500 | [diff] [blame] | 82 | |
| 83 | public TileLifecycleManager(Handler handler, Context context, Intent intent, UserHandle user) { |
| 84 | mContext = context; |
| 85 | mHandler = handler; |
| 86 | mIntent = intent; |
| 87 | mUser = user; |
| 88 | } |
| 89 | |
Jason Monk | fe8f682 | 2015-12-21 15:12:01 -0500 | [diff] [blame] | 90 | public ComponentName getComponent() { |
| 91 | return mIntent.getComponent(); |
| 92 | } |
| 93 | |
Jason Monk | d5a204f | 2015-12-21 08:50:01 -0500 | [diff] [blame] | 94 | public boolean hasPendingClick() { |
| 95 | synchronized (mQueuedMessages) { |
| 96 | return mQueuedMessages.contains(MSG_ON_CLICK); |
| 97 | } |
| 98 | } |
| 99 | |
Jason Monk | 51c444b | 2016-01-06 16:32:29 -0500 | [diff] [blame] | 100 | /** |
| 101 | * Binds just long enough to send any queued messages, then unbinds. |
| 102 | */ |
| 103 | public void flushMessagesAndUnbind() { |
| 104 | mUnbindImmediate = true; |
| 105 | setBindService(true); |
| 106 | } |
| 107 | |
Jason Monk | d5a204f | 2015-12-21 08:50:01 -0500 | [diff] [blame] | 108 | public void setBindService(boolean bind) { |
| 109 | mBound = bind; |
| 110 | if (bind) { |
| 111 | if (mBindTryCount == MAX_BIND_RETRIES) { |
| 112 | // Too many failures, give up on this tile until an update. |
| 113 | startPackageListening(); |
| 114 | return; |
| 115 | } |
| 116 | if (!checkComponentState()) { |
| 117 | return; |
| 118 | } |
| 119 | if (DEBUG) Log.d(TAG, "Binding service " + mIntent); |
| 120 | mBindTryCount++; |
| 121 | mContext.bindServiceAsUser(mIntent, this, |
| 122 | Context.BIND_AUTO_CREATE | Context.BIND_FOREGROUND_SERVICE_WHILE_AWAKE, |
| 123 | mUser); |
| 124 | } else { |
| 125 | if (DEBUG) Log.d(TAG, "Unbinding service " + mIntent); |
| 126 | // Give it another chance next time it needs to be bound, out of kindness. |
| 127 | mBindTryCount = 0; |
Jason Monk | fe8f682 | 2015-12-21 15:12:01 -0500 | [diff] [blame] | 128 | mWrapper = null; |
Jason Monk | d5a204f | 2015-12-21 08:50:01 -0500 | [diff] [blame] | 129 | mContext.unbindService(this); |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | @Override |
| 134 | public void onServiceConnected(ComponentName name, IBinder service) { |
| 135 | if (DEBUG) Log.d(TAG, "onServiceConnected " + name); |
| 136 | // Got a connection, set the binding count to 0. |
| 137 | mBindTryCount = 0; |
| 138 | mWrapper = new QSTileServiceWrapper(Stub.asInterface(service)); |
| 139 | try { |
| 140 | service.linkToDeath(this, 0); |
| 141 | } catch (RemoteException e) { |
| 142 | } |
Jason Monk | fe8f682 | 2015-12-21 15:12:01 -0500 | [diff] [blame] | 143 | setQSService(mService); |
| 144 | setQSTile(mTile); |
Jason Monk | d5a204f | 2015-12-21 08:50:01 -0500 | [diff] [blame] | 145 | handlePendingMessages(); |
| 146 | } |
| 147 | |
| 148 | @Override |
| 149 | public void onServiceDisconnected(ComponentName name) { |
| 150 | if (DEBUG) Log.d(TAG, "onServiceDisconnected " + name); |
| 151 | mWrapper = null; |
| 152 | } |
| 153 | |
| 154 | private void handlePendingMessages() { |
| 155 | // This ordering is laid out manually to make sure we preserve the TileService |
| 156 | // lifecycle. |
| 157 | ArraySet<Integer> queue; |
| 158 | synchronized (mQueuedMessages) { |
| 159 | queue = new ArraySet<>(mQueuedMessages); |
| 160 | mQueuedMessages.clear(); |
| 161 | } |
| 162 | if (queue.contains(MSG_ON_ADDED)) { |
| 163 | if (DEBUG) Log.d(TAG, "Handling pending onAdded"); |
| 164 | onTileAdded(); |
| 165 | } |
| 166 | if (mListening) { |
| 167 | if (DEBUG) Log.d(TAG, "Handling pending onStartListening"); |
Jason Monk | d5a204f | 2015-12-21 08:50:01 -0500 | [diff] [blame] | 168 | onStartListening(); |
| 169 | } |
| 170 | if (queue.contains(MSG_ON_CLICK)) { |
| 171 | if (DEBUG) Log.d(TAG, "Handling pending onClick"); |
| 172 | if (!mListening) { |
| 173 | Log.w(TAG, "Managed to get click on non-listening state..."); |
| 174 | // Skipping click since lost click privileges. |
| 175 | } else { |
| 176 | onClick(mClickBinder); |
| 177 | } |
| 178 | } |
Jason Monk | 9429513 | 2016-01-12 11:27:02 -0500 | [diff] [blame] | 179 | if (queue.contains(MSG_ON_UNLOCK_COMPLETE)) { |
| 180 | if (DEBUG) Log.d(TAG, "Handling pending onUnlockComplete"); |
| 181 | if (!mListening) { |
| 182 | Log.w(TAG, "Managed to get unlock on non-listening state..."); |
| 183 | // Skipping unlock since lost click privileges. |
| 184 | } else { |
| 185 | onUnlockComplete(); |
| 186 | } |
| 187 | } |
Jason Monk | d5a204f | 2015-12-21 08:50:01 -0500 | [diff] [blame] | 188 | if (queue.contains(MSG_ON_REMOVED)) { |
| 189 | if (DEBUG) Log.d(TAG, "Handling pending onRemoved"); |
| 190 | if (mListening) { |
| 191 | Log.w(TAG, "Managed to get remove in listening state..."); |
| 192 | onStopListening(); |
| 193 | } |
| 194 | onTileRemoved(); |
| 195 | } |
Jason Monk | 51c444b | 2016-01-06 16:32:29 -0500 | [diff] [blame] | 196 | if (mUnbindImmediate) { |
| 197 | mUnbindImmediate = false; |
| 198 | setBindService(false); |
| 199 | } |
Jason Monk | d5a204f | 2015-12-21 08:50:01 -0500 | [diff] [blame] | 200 | } |
| 201 | |
| 202 | public void handleDestroy() { |
| 203 | if (DEBUG) Log.d(TAG, "handleDestroy"); |
| 204 | if (mReceiverRegistered) { |
| 205 | stopPackageListening(); |
| 206 | } |
| 207 | } |
| 208 | |
| 209 | private void handleDeath() { |
| 210 | if (mWrapper == null) return; |
| 211 | mWrapper = null; |
| 212 | if (!mBound) return; |
| 213 | if (DEBUG) Log.d(TAG, "handleDeath"); |
| 214 | if (checkComponentState()) { |
| 215 | mHandler.postDelayed(new Runnable() { |
| 216 | @Override |
| 217 | public void run() { |
| 218 | if (mBound) { |
| 219 | // Retry binding. |
| 220 | setBindService(true); |
| 221 | } |
| 222 | } |
| 223 | }, BIND_RETRY_DELAY); |
| 224 | } |
| 225 | } |
| 226 | |
| 227 | @Override |
| 228 | public void setQSTile(Tile tile) { |
| 229 | if (DEBUG) Log.d(TAG, "setQSTile " + tile); |
| 230 | mTile = tile; |
| 231 | if (mWrapper != null && !mWrapper.setQSTile(tile)) { |
| 232 | handleDeath(); |
| 233 | } |
| 234 | } |
| 235 | |
| 236 | private boolean checkComponentState() { |
| 237 | PackageManager pm = mContext.getPackageManager(); |
| 238 | if (!isPackageAvailable(pm) || !isComponentAvailable(pm)) { |
| 239 | startPackageListening(); |
| 240 | return false; |
| 241 | } |
| 242 | return true; |
| 243 | } |
| 244 | |
| 245 | private void startPackageListening() { |
| 246 | if (DEBUG) Log.d(TAG, "startPackageListening"); |
| 247 | IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED); |
| 248 | filter.addAction(Intent.ACTION_PACKAGE_CHANGED); |
| 249 | filter.addDataScheme("package"); |
| 250 | mContext.registerReceiverAsUser(this, mUser, filter, null, mHandler); |
| 251 | mReceiverRegistered = true; |
| 252 | } |
| 253 | |
| 254 | private void stopPackageListening() { |
| 255 | if (DEBUG) Log.d(TAG, "stopPackageListening"); |
| 256 | mContext.unregisterReceiver(this); |
| 257 | mReceiverRegistered = false; |
| 258 | } |
| 259 | |
| 260 | @Override |
| 261 | public void onReceive(Context context, Intent intent) { |
| 262 | if (DEBUG) Log.d(TAG, "onReceive: " + intent); |
| 263 | Uri data = intent.getData(); |
| 264 | String pkgName = data.getEncodedSchemeSpecificPart(); |
| 265 | if (!Objects.equal(pkgName, mIntent.getComponent().getPackageName())) { |
| 266 | return; |
| 267 | } |
| 268 | stopPackageListening(); |
| 269 | if (mBound) { |
| 270 | // Trying to bind again will check the state of the package before bothering to bind. |
| 271 | if (DEBUG) Log.d(TAG, "Trying to rebind"); |
| 272 | setBindService(true); |
| 273 | } |
| 274 | } |
| 275 | |
| 276 | private boolean isComponentAvailable(PackageManager pm) { |
| 277 | String packageName = mIntent.getComponent().getPackageName(); |
| 278 | try { |
| 279 | ServiceInfo si = AppGlobals.getPackageManager().getServiceInfo(mIntent.getComponent(), |
| 280 | 0, mUser.getIdentifier()); |
| 281 | if (DEBUG && si == null) Log.d(TAG, "Can't find component " + mIntent.getComponent()); |
| 282 | return si != null; |
| 283 | } catch (RemoteException e) { |
| 284 | // Shouldn't happen. |
| 285 | } |
| 286 | return false; |
| 287 | } |
| 288 | |
| 289 | private boolean isPackageAvailable(PackageManager pm) { |
| 290 | String packageName = mIntent.getComponent().getPackageName(); |
| 291 | try { |
| 292 | pm.getPackageInfoAsUser(packageName, 0, mUser.getIdentifier()); |
| 293 | return true; |
| 294 | } catch (PackageManager.NameNotFoundException e) { |
| 295 | if (DEBUG) Log.d(TAG, "Package not available: " + packageName, e); |
| 296 | else Log.d(TAG, "Package not available: " + packageName); |
| 297 | } |
| 298 | return false; |
| 299 | } |
| 300 | |
| 301 | private void queueMessage(int message) { |
| 302 | synchronized (mQueuedMessages) { |
| 303 | mQueuedMessages.add(message); |
| 304 | } |
| 305 | } |
| 306 | |
| 307 | @Override |
Jason Monk | fe8f682 | 2015-12-21 15:12:01 -0500 | [diff] [blame] | 308 | public void setQSService(IQSService service) { |
| 309 | mService = service; |
| 310 | if (mWrapper == null || !mWrapper.setQSService(service)) { |
| 311 | handleDeath(); |
| 312 | } |
| 313 | } |
| 314 | |
| 315 | @Override |
Jason Monk | d5a204f | 2015-12-21 08:50:01 -0500 | [diff] [blame] | 316 | public void onTileAdded() { |
| 317 | if (DEBUG) Log.d(TAG, "onTileAdded"); |
| 318 | if (mWrapper == null || !mWrapper.onTileAdded()) { |
| 319 | queueMessage(MSG_ON_ADDED); |
| 320 | handleDeath(); |
| 321 | } |
| 322 | } |
| 323 | |
| 324 | @Override |
| 325 | public void onTileRemoved() { |
| 326 | if (DEBUG) Log.d(TAG, "onTileRemoved"); |
| 327 | if (mWrapper == null || !mWrapper.onTileRemoved()) { |
| 328 | queueMessage(MSG_ON_REMOVED); |
| 329 | handleDeath(); |
| 330 | } |
| 331 | } |
| 332 | |
| 333 | @Override |
| 334 | public void onStartListening() { |
| 335 | if (DEBUG) Log.d(TAG, "onStartListening"); |
| 336 | mListening = true; |
| 337 | if (mWrapper != null && !mWrapper.onStartListening()) { |
| 338 | handleDeath(); |
| 339 | } |
| 340 | } |
| 341 | |
| 342 | @Override |
| 343 | public void onStopListening() { |
| 344 | if (DEBUG) Log.d(TAG, "onStopListening"); |
| 345 | mListening = false; |
| 346 | if (mWrapper != null && !mWrapper.onStopListening()) { |
| 347 | handleDeath(); |
| 348 | } |
| 349 | } |
| 350 | |
| 351 | @Override |
| 352 | public void onClick(IBinder iBinder) { |
| 353 | if (DEBUG) Log.d(TAG, "onClick " + iBinder); |
| 354 | if (mWrapper == null || !mWrapper.onClick(iBinder)) { |
| 355 | mClickBinder = iBinder; |
| 356 | queueMessage(MSG_ON_CLICK); |
| 357 | handleDeath(); |
| 358 | } |
| 359 | } |
| 360 | |
| 361 | @Override |
Jason Monk | 9429513 | 2016-01-12 11:27:02 -0500 | [diff] [blame] | 362 | public void onUnlockComplete() { |
| 363 | if (DEBUG) Log.d(TAG, "onUnlockComplete"); |
| 364 | if (mWrapper == null || !mWrapper.onUnlockComplete()) { |
| 365 | queueMessage(MSG_ON_UNLOCK_COMPLETE); |
| 366 | handleDeath(); |
| 367 | } |
| 368 | } |
| 369 | |
| 370 | @Override |
Jason Monk | d5a204f | 2015-12-21 08:50:01 -0500 | [diff] [blame] | 371 | public IBinder asBinder() { |
| 372 | return mWrapper != null ? mWrapper.asBinder() : null; |
| 373 | } |
| 374 | |
| 375 | @Override |
| 376 | public void binderDied() { |
| 377 | if (DEBUG) Log.d(TAG, "binderDeath"); |
| 378 | handleDeath(); |
| 379 | } |
| 380 | } |