Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 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.server; |
| 18 | |
| 19 | import android.app.AlarmManager; |
Amith Yamasani | 483f3b0 | 2012-03-13 16:08:00 -0700 | [diff] [blame] | 20 | import android.app.AppGlobals; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 21 | import android.app.PendingIntent; |
| 22 | import android.appwidget.AppWidgetManager; |
| 23 | import android.appwidget.AppWidgetProviderInfo; |
| 24 | import android.content.ComponentName; |
| 25 | import android.content.Context; |
| 26 | import android.content.Intent; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 27 | import android.content.Intent.FilterComparison; |
Michael Jurka | 61a5b01 | 2012-04-13 10:39:45 -0700 | [diff] [blame] | 28 | import android.content.ServiceConnection; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 29 | import android.content.pm.ActivityInfo; |
| 30 | import android.content.pm.ApplicationInfo; |
Amith Yamasani | 483f3b0 | 2012-03-13 16:08:00 -0700 | [diff] [blame] | 31 | import android.content.pm.IPackageManager; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 32 | import android.content.pm.PackageInfo; |
| 33 | import android.content.pm.PackageManager; |
| 34 | import android.content.pm.ResolveInfo; |
| 35 | import android.content.pm.ServiceInfo; |
| 36 | import android.content.res.Resources; |
| 37 | import android.content.res.TypedArray; |
| 38 | import android.content.res.XmlResourceParser; |
| 39 | import android.net.Uri; |
| 40 | import android.os.Binder; |
| 41 | import android.os.Bundle; |
| 42 | import android.os.IBinder; |
| 43 | import android.os.RemoteException; |
| 44 | import android.os.SystemClock; |
| 45 | import android.os.UserId; |
| 46 | import android.util.AttributeSet; |
| 47 | import android.util.Log; |
| 48 | import android.util.Pair; |
| 49 | import android.util.Slog; |
| 50 | import android.util.TypedValue; |
| 51 | import android.util.Xml; |
Adam Cohen | 311c79c | 2012-05-10 14:44:38 -0700 | [diff] [blame] | 52 | import android.view.WindowManager; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 53 | import android.widget.RemoteViews; |
| 54 | |
| 55 | import com.android.internal.appwidget.IAppWidgetHost; |
| 56 | import com.android.internal.os.AtomicFile; |
| 57 | import com.android.internal.util.FastXmlSerializer; |
| 58 | import com.android.internal.widget.IRemoteViewsAdapterConnection; |
| 59 | import com.android.internal.widget.IRemoteViewsFactory; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 60 | |
| 61 | import org.xmlpull.v1.XmlPullParser; |
| 62 | import org.xmlpull.v1.XmlPullParserException; |
| 63 | import org.xmlpull.v1.XmlSerializer; |
| 64 | |
| 65 | import java.io.File; |
| 66 | import java.io.FileDescriptor; |
| 67 | import java.io.FileInputStream; |
| 68 | import java.io.FileNotFoundException; |
| 69 | import java.io.FileOutputStream; |
| 70 | import java.io.IOException; |
| 71 | import java.io.PrintWriter; |
| 72 | import java.util.ArrayList; |
| 73 | import java.util.HashMap; |
| 74 | import java.util.HashSet; |
| 75 | import java.util.Iterator; |
| 76 | import java.util.List; |
| 77 | import java.util.Locale; |
| 78 | import java.util.Set; |
| 79 | |
| 80 | class AppWidgetServiceImpl { |
| 81 | |
| 82 | private static final String TAG = "AppWidgetServiceImpl"; |
| 83 | private static final String SETTINGS_FILENAME = "appwidgets.xml"; |
| 84 | private static final int MIN_UPDATE_PERIOD = 30 * 60 * 1000; // 30 minutes |
| 85 | |
| 86 | /* |
| 87 | * When identifying a Host or Provider based on the calling process, use the uid field. When |
| 88 | * identifying a Host or Provider based on a package manager broadcast, use the package given. |
| 89 | */ |
| 90 | |
| 91 | static class Provider { |
| 92 | int uid; |
| 93 | AppWidgetProviderInfo info; |
| 94 | ArrayList<AppWidgetId> instances = new ArrayList<AppWidgetId>(); |
| 95 | PendingIntent broadcast; |
| 96 | boolean zombie; // if we're in safe mode, don't prune this just because nobody references it |
| 97 | |
| 98 | int tag; // for use while saving state (the index) |
| 99 | } |
| 100 | |
| 101 | static class Host { |
| 102 | int uid; |
| 103 | int hostId; |
| 104 | String packageName; |
| 105 | ArrayList<AppWidgetId> instances = new ArrayList<AppWidgetId>(); |
| 106 | IAppWidgetHost callbacks; |
| 107 | boolean zombie; // if we're in safe mode, don't prune this just because nobody references it |
| 108 | |
| 109 | int tag; // for use while saving state (the index) |
| 110 | } |
| 111 | |
| 112 | static class AppWidgetId { |
| 113 | int appWidgetId; |
| 114 | Provider provider; |
| 115 | RemoteViews views; |
Adam Cohen | d2097eb | 2012-05-01 18:10:28 -0700 | [diff] [blame] | 116 | Bundle options; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 117 | Host host; |
| 118 | } |
| 119 | |
| 120 | /** |
| 121 | * Acts as a proxy between the ServiceConnection and the RemoteViewsAdapterConnection. This |
| 122 | * needs to be a static inner class since a reference to the ServiceConnection is held globally |
| 123 | * and may lead us to leak AppWidgetService instances (if there were more than one). |
| 124 | */ |
| 125 | static class ServiceConnectionProxy implements ServiceConnection { |
| 126 | private final IBinder mConnectionCb; |
| 127 | |
| 128 | ServiceConnectionProxy(Pair<Integer, Intent.FilterComparison> key, IBinder connectionCb) { |
| 129 | mConnectionCb = connectionCb; |
| 130 | } |
| 131 | |
| 132 | public void onServiceConnected(ComponentName name, IBinder service) { |
| 133 | final IRemoteViewsAdapterConnection cb = IRemoteViewsAdapterConnection.Stub |
| 134 | .asInterface(mConnectionCb); |
| 135 | try { |
| 136 | cb.onServiceConnected(service); |
| 137 | } catch (Exception e) { |
| 138 | e.printStackTrace(); |
| 139 | } |
| 140 | } |
| 141 | |
| 142 | public void onServiceDisconnected(ComponentName name) { |
| 143 | disconnect(); |
| 144 | } |
| 145 | |
| 146 | public void disconnect() { |
| 147 | final IRemoteViewsAdapterConnection cb = IRemoteViewsAdapterConnection.Stub |
| 148 | .asInterface(mConnectionCb); |
| 149 | try { |
| 150 | cb.onServiceDisconnected(); |
| 151 | } catch (Exception e) { |
| 152 | e.printStackTrace(); |
| 153 | } |
| 154 | } |
| 155 | } |
| 156 | |
| 157 | // Manages active connections to RemoteViewsServices |
| 158 | private final HashMap<Pair<Integer, FilterComparison>, ServiceConnection> mBoundRemoteViewsServices = new HashMap<Pair<Integer, FilterComparison>, ServiceConnection>(); |
| 159 | // Manages persistent references to RemoteViewsServices from different App Widgets |
| 160 | private final HashMap<FilterComparison, HashSet<Integer>> mRemoteViewsServicesAppWidgets = new HashMap<FilterComparison, HashSet<Integer>>(); |
| 161 | |
| 162 | Context mContext; |
| 163 | Locale mLocale; |
Amith Yamasani | 483f3b0 | 2012-03-13 16:08:00 -0700 | [diff] [blame] | 164 | IPackageManager mPm; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 165 | AlarmManager mAlarmManager; |
| 166 | ArrayList<Provider> mInstalledProviders = new ArrayList<Provider>(); |
| 167 | int mNextAppWidgetId = AppWidgetManager.INVALID_APPWIDGET_ID + 1; |
| 168 | final ArrayList<AppWidgetId> mAppWidgetIds = new ArrayList<AppWidgetId>(); |
| 169 | ArrayList<Host> mHosts = new ArrayList<Host>(); |
Michael Jurka | 61a5b01 | 2012-04-13 10:39:45 -0700 | [diff] [blame] | 170 | // set of package names |
| 171 | HashSet<String> mPackagesWithBindWidgetPermission = new HashSet<String>(); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 172 | boolean mSafeMode; |
| 173 | int mUserId; |
| 174 | boolean mStateLoaded; |
Adam Cohen | 311c79c | 2012-05-10 14:44:38 -0700 | [diff] [blame] | 175 | int mMaxWidgetBitmapMemory; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 176 | |
| 177 | // These are for debugging only -- widgets are going missing in some rare instances |
| 178 | ArrayList<Provider> mDeletedProviders = new ArrayList<Provider>(); |
| 179 | ArrayList<Host> mDeletedHosts = new ArrayList<Host>(); |
| 180 | |
| 181 | AppWidgetServiceImpl(Context context, int userId) { |
| 182 | mContext = context; |
Amith Yamasani | 483f3b0 | 2012-03-13 16:08:00 -0700 | [diff] [blame] | 183 | mPm = AppGlobals.getPackageManager(); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 184 | mAlarmManager = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE); |
| 185 | mUserId = userId; |
Adam Cohen | 311c79c | 2012-05-10 14:44:38 -0700 | [diff] [blame] | 186 | computeMaximumWidgetBitmapMemory(); |
| 187 | } |
| 188 | |
| 189 | void computeMaximumWidgetBitmapMemory() { |
| 190 | WindowManager wm = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE); |
| 191 | int height = wm.getDefaultDisplay().getRawHeight(); |
| 192 | int width = wm.getDefaultDisplay().getRawWidth(); |
Winson Chung | e92aad4 | 2012-06-22 14:11:47 -0700 | [diff] [blame] | 193 | // Cap memory usage at 1.5 times the size of the display |
| 194 | // 1.5 * 4 bytes/pixel * w * h ==> 6 * w * h |
| 195 | mMaxWidgetBitmapMemory = 6 * width * height; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 196 | } |
| 197 | |
| 198 | public void systemReady(boolean safeMode) { |
| 199 | mSafeMode = safeMode; |
| 200 | |
| 201 | synchronized (mAppWidgetIds) { |
| 202 | ensureStateLoadedLocked(); |
| 203 | } |
| 204 | } |
| 205 | |
| 206 | void onConfigurationChanged() { |
| 207 | Locale revised = Locale.getDefault(); |
| 208 | if (revised == null || mLocale == null || !(revised.equals(mLocale))) { |
| 209 | mLocale = revised; |
| 210 | |
| 211 | synchronized (mAppWidgetIds) { |
| 212 | ensureStateLoadedLocked(); |
| 213 | int N = mInstalledProviders.size(); |
| 214 | for (int i = N - 1; i >= 0; i--) { |
| 215 | Provider p = mInstalledProviders.get(i); |
| 216 | String pkgName = p.info.provider.getPackageName(); |
| 217 | updateProvidersForPackageLocked(pkgName); |
| 218 | } |
| 219 | saveStateLocked(); |
| 220 | } |
| 221 | } |
| 222 | } |
| 223 | |
| 224 | void onBroadcastReceived(Intent intent) { |
| 225 | final String action = intent.getAction(); |
| 226 | boolean added = false; |
| 227 | boolean changed = false; |
| 228 | String pkgList[] = null; |
| 229 | if (Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE.equals(action)) { |
| 230 | pkgList = intent.getStringArrayExtra(Intent.EXTRA_CHANGED_PACKAGE_LIST); |
| 231 | added = true; |
| 232 | } else if (Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { |
| 233 | pkgList = intent.getStringArrayExtra(Intent.EXTRA_CHANGED_PACKAGE_LIST); |
| 234 | added = false; |
| 235 | } else { |
| 236 | Uri uri = intent.getData(); |
| 237 | if (uri == null) { |
| 238 | return; |
| 239 | } |
| 240 | String pkgName = uri.getSchemeSpecificPart(); |
| 241 | if (pkgName == null) { |
| 242 | return; |
| 243 | } |
| 244 | pkgList = new String[] { pkgName }; |
| 245 | added = Intent.ACTION_PACKAGE_ADDED.equals(action); |
| 246 | changed = Intent.ACTION_PACKAGE_CHANGED.equals(action); |
| 247 | } |
| 248 | if (pkgList == null || pkgList.length == 0) { |
| 249 | return; |
| 250 | } |
| 251 | if (added || changed) { |
| 252 | synchronized (mAppWidgetIds) { |
| 253 | ensureStateLoadedLocked(); |
| 254 | Bundle extras = intent.getExtras(); |
| 255 | if (changed |
| 256 | || (extras != null && extras.getBoolean(Intent.EXTRA_REPLACING, false))) { |
| 257 | for (String pkgName : pkgList) { |
| 258 | // The package was just upgraded |
| 259 | updateProvidersForPackageLocked(pkgName); |
| 260 | } |
| 261 | } else { |
| 262 | // The package was just added |
| 263 | for (String pkgName : pkgList) { |
| 264 | addProvidersForPackageLocked(pkgName); |
| 265 | } |
| 266 | } |
| 267 | saveStateLocked(); |
| 268 | } |
| 269 | } else { |
| 270 | Bundle extras = intent.getExtras(); |
| 271 | if (extras != null && extras.getBoolean(Intent.EXTRA_REPLACING, false)) { |
| 272 | // The package is being updated. We'll receive a PACKAGE_ADDED shortly. |
| 273 | } else { |
| 274 | synchronized (mAppWidgetIds) { |
| 275 | ensureStateLoadedLocked(); |
| 276 | for (String pkgName : pkgList) { |
| 277 | removeProvidersForPackageLocked(pkgName); |
| 278 | saveStateLocked(); |
| 279 | } |
| 280 | } |
| 281 | } |
| 282 | } |
| 283 | } |
| 284 | |
| 285 | private void dumpProvider(Provider p, int index, PrintWriter pw) { |
| 286 | AppWidgetProviderInfo info = p.info; |
| 287 | pw.print(" ["); pw.print(index); pw.print("] provider "); |
| 288 | pw.print(info.provider.flattenToShortString()); |
| 289 | pw.println(':'); |
| 290 | pw.print(" min=("); pw.print(info.minWidth); |
| 291 | pw.print("x"); pw.print(info.minHeight); |
| 292 | pw.print(") minResize=("); pw.print(info.minResizeWidth); |
| 293 | pw.print("x"); pw.print(info.minResizeHeight); |
| 294 | pw.print(") updatePeriodMillis="); |
| 295 | pw.print(info.updatePeriodMillis); |
| 296 | pw.print(" resizeMode="); |
| 297 | pw.print(info.resizeMode); |
| 298 | pw.print(" autoAdvanceViewId="); |
| 299 | pw.print(info.autoAdvanceViewId); |
| 300 | pw.print(" initialLayout=#"); |
| 301 | pw.print(Integer.toHexString(info.initialLayout)); |
| 302 | pw.print(" zombie="); pw.println(p.zombie); |
| 303 | } |
| 304 | |
| 305 | private void dumpHost(Host host, int index, PrintWriter pw) { |
| 306 | pw.print(" ["); pw.print(index); pw.print("] hostId="); |
| 307 | pw.print(host.hostId); pw.print(' '); |
| 308 | pw.print(host.packageName); pw.print('/'); |
| 309 | pw.print(host.uid); pw.println(':'); |
| 310 | pw.print(" callbacks="); pw.println(host.callbacks); |
| 311 | pw.print(" instances.size="); pw.print(host.instances.size()); |
| 312 | pw.print(" zombie="); pw.println(host.zombie); |
| 313 | } |
| 314 | |
| 315 | private void dumpAppWidgetId(AppWidgetId id, int index, PrintWriter pw) { |
| 316 | pw.print(" ["); pw.print(index); pw.print("] id="); |
| 317 | pw.println(id.appWidgetId); |
| 318 | pw.print(" hostId="); |
| 319 | pw.print(id.host.hostId); pw.print(' '); |
| 320 | pw.print(id.host.packageName); pw.print('/'); |
| 321 | pw.println(id.host.uid); |
| 322 | if (id.provider != null) { |
| 323 | pw.print(" provider="); |
| 324 | pw.println(id.provider.info.provider.flattenToShortString()); |
| 325 | } |
| 326 | if (id.host != null) { |
| 327 | pw.print(" host.callbacks="); pw.println(id.host.callbacks); |
| 328 | } |
| 329 | if (id.views != null) { |
| 330 | pw.print(" views="); pw.println(id.views); |
| 331 | } |
| 332 | } |
| 333 | |
| 334 | void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| 335 | if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) |
| 336 | != PackageManager.PERMISSION_GRANTED) { |
| 337 | pw.println("Permission Denial: can't dump from from pid=" |
| 338 | + Binder.getCallingPid() |
| 339 | + ", uid=" + Binder.getCallingUid()); |
| 340 | return; |
| 341 | } |
| 342 | |
| 343 | synchronized (mAppWidgetIds) { |
| 344 | int N = mInstalledProviders.size(); |
| 345 | pw.println("Providers:"); |
| 346 | for (int i=0; i<N; i++) { |
| 347 | dumpProvider(mInstalledProviders.get(i), i, pw); |
| 348 | } |
| 349 | |
| 350 | N = mAppWidgetIds.size(); |
| 351 | pw.println(" "); |
| 352 | pw.println("AppWidgetIds:"); |
| 353 | for (int i=0; i<N; i++) { |
| 354 | dumpAppWidgetId(mAppWidgetIds.get(i), i, pw); |
| 355 | } |
| 356 | |
| 357 | N = mHosts.size(); |
| 358 | pw.println(" "); |
| 359 | pw.println("Hosts:"); |
| 360 | for (int i=0; i<N; i++) { |
| 361 | dumpHost(mHosts.get(i), i, pw); |
| 362 | } |
| 363 | |
| 364 | N = mDeletedProviders.size(); |
| 365 | pw.println(" "); |
| 366 | pw.println("Deleted Providers:"); |
| 367 | for (int i=0; i<N; i++) { |
| 368 | dumpProvider(mDeletedProviders.get(i), i, pw); |
| 369 | } |
| 370 | |
| 371 | N = mDeletedHosts.size(); |
| 372 | pw.println(" "); |
| 373 | pw.println("Deleted Hosts:"); |
| 374 | for (int i=0; i<N; i++) { |
| 375 | dumpHost(mDeletedHosts.get(i), i, pw); |
| 376 | } |
| 377 | } |
| 378 | } |
| 379 | |
| 380 | private void ensureStateLoadedLocked() { |
| 381 | if (!mStateLoaded) { |
| 382 | loadAppWidgetList(); |
| 383 | loadStateLocked(); |
| 384 | mStateLoaded = true; |
| 385 | } |
| 386 | } |
| 387 | |
| 388 | public int allocateAppWidgetId(String packageName, int hostId) { |
| 389 | int callingUid = enforceCallingUid(packageName); |
| 390 | synchronized (mAppWidgetIds) { |
| 391 | ensureStateLoadedLocked(); |
| 392 | int appWidgetId = mNextAppWidgetId++; |
| 393 | |
| 394 | Host host = lookupOrAddHostLocked(callingUid, packageName, hostId); |
| 395 | |
| 396 | AppWidgetId id = new AppWidgetId(); |
| 397 | id.appWidgetId = appWidgetId; |
| 398 | id.host = host; |
| 399 | |
| 400 | host.instances.add(id); |
| 401 | mAppWidgetIds.add(id); |
| 402 | |
| 403 | saveStateLocked(); |
| 404 | |
| 405 | return appWidgetId; |
| 406 | } |
| 407 | } |
| 408 | |
| 409 | public void deleteAppWidgetId(int appWidgetId) { |
| 410 | synchronized (mAppWidgetIds) { |
| 411 | ensureStateLoadedLocked(); |
| 412 | AppWidgetId id = lookupAppWidgetIdLocked(appWidgetId); |
| 413 | if (id != null) { |
| 414 | deleteAppWidgetLocked(id); |
| 415 | saveStateLocked(); |
| 416 | } |
| 417 | } |
| 418 | } |
| 419 | |
| 420 | public void deleteHost(int hostId) { |
| 421 | synchronized (mAppWidgetIds) { |
| 422 | ensureStateLoadedLocked(); |
| 423 | int callingUid = Binder.getCallingUid(); |
| 424 | Host host = lookupHostLocked(callingUid, hostId); |
| 425 | if (host != null) { |
| 426 | deleteHostLocked(host); |
| 427 | saveStateLocked(); |
| 428 | } |
| 429 | } |
| 430 | } |
| 431 | |
| 432 | public void deleteAllHosts() { |
| 433 | synchronized (mAppWidgetIds) { |
| 434 | ensureStateLoadedLocked(); |
| 435 | int callingUid = Binder.getCallingUid(); |
| 436 | final int N = mHosts.size(); |
| 437 | boolean changed = false; |
| 438 | for (int i = N - 1; i >= 0; i--) { |
| 439 | Host host = mHosts.get(i); |
| 440 | if (host.uid == callingUid) { |
| 441 | deleteHostLocked(host); |
| 442 | changed = true; |
| 443 | } |
| 444 | } |
| 445 | if (changed) { |
| 446 | saveStateLocked(); |
| 447 | } |
| 448 | } |
| 449 | } |
| 450 | |
| 451 | void deleteHostLocked(Host host) { |
| 452 | final int N = host.instances.size(); |
| 453 | for (int i = N - 1; i >= 0; i--) { |
| 454 | AppWidgetId id = host.instances.get(i); |
| 455 | deleteAppWidgetLocked(id); |
| 456 | } |
| 457 | host.instances.clear(); |
| 458 | mHosts.remove(host); |
| 459 | mDeletedHosts.add(host); |
| 460 | // it's gone or going away, abruptly drop the callback connection |
| 461 | host.callbacks = null; |
| 462 | } |
| 463 | |
| 464 | void deleteAppWidgetLocked(AppWidgetId id) { |
| 465 | // We first unbind all services that are bound to this id |
| 466 | unbindAppWidgetRemoteViewsServicesLocked(id); |
| 467 | |
| 468 | Host host = id.host; |
| 469 | host.instances.remove(id); |
| 470 | pruneHostLocked(host); |
| 471 | |
| 472 | mAppWidgetIds.remove(id); |
| 473 | |
| 474 | Provider p = id.provider; |
| 475 | if (p != null) { |
| 476 | p.instances.remove(id); |
| 477 | if (!p.zombie) { |
| 478 | // send the broacast saying that this appWidgetId has been deleted |
| 479 | Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_DELETED); |
| 480 | intent.setComponent(p.info.provider); |
| 481 | intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, id.appWidgetId); |
Amith Yamasani | 67cf7d3 | 2012-02-16 14:31:23 -0800 | [diff] [blame] | 482 | mContext.sendBroadcast(intent, mUserId); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 483 | if (p.instances.size() == 0) { |
| 484 | // cancel the future updates |
| 485 | cancelBroadcasts(p); |
| 486 | |
| 487 | // send the broacast saying that the provider is not in use any more |
| 488 | intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_DISABLED); |
| 489 | intent.setComponent(p.info.provider); |
Amith Yamasani | 67cf7d3 | 2012-02-16 14:31:23 -0800 | [diff] [blame] | 490 | mContext.sendBroadcast(intent, mUserId); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 491 | } |
| 492 | } |
| 493 | } |
| 494 | } |
| 495 | |
| 496 | void cancelBroadcasts(Provider p) { |
| 497 | if (p.broadcast != null) { |
| 498 | mAlarmManager.cancel(p.broadcast); |
| 499 | long token = Binder.clearCallingIdentity(); |
| 500 | try { |
| 501 | p.broadcast.cancel(); |
| 502 | } finally { |
| 503 | Binder.restoreCallingIdentity(token); |
| 504 | } |
| 505 | p.broadcast = null; |
| 506 | } |
| 507 | } |
| 508 | |
Michael Jurka | 61a5b01 | 2012-04-13 10:39:45 -0700 | [diff] [blame] | 509 | private void bindAppWidgetIdImpl(int appWidgetId, ComponentName provider) { |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 510 | final long ident = Binder.clearCallingIdentity(); |
| 511 | try { |
| 512 | synchronized (mAppWidgetIds) { |
| 513 | ensureStateLoadedLocked(); |
| 514 | AppWidgetId id = lookupAppWidgetIdLocked(appWidgetId); |
| 515 | if (id == null) { |
| 516 | throw new IllegalArgumentException("bad appWidgetId"); |
| 517 | } |
| 518 | if (id.provider != null) { |
| 519 | throw new IllegalArgumentException("appWidgetId " + appWidgetId |
| 520 | + " already bound to " + id.provider.info.provider); |
| 521 | } |
| 522 | Provider p = lookupProviderLocked(provider); |
| 523 | if (p == null) { |
| 524 | throw new IllegalArgumentException("not a appwidget provider: " + provider); |
| 525 | } |
| 526 | if (p.zombie) { |
| 527 | throw new IllegalArgumentException("can't bind to a 3rd party provider in" |
| 528 | + " safe mode: " + provider); |
| 529 | } |
| 530 | |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 531 | id.provider = p; |
| 532 | p.instances.add(id); |
| 533 | int instancesSize = p.instances.size(); |
| 534 | if (instancesSize == 1) { |
| 535 | // tell the provider that it's ready |
| 536 | sendEnableIntentLocked(p); |
| 537 | } |
| 538 | |
| 539 | // send an update now -- We need this update now, and just for this appWidgetId. |
| 540 | // It's less critical when the next one happens, so when we schedule the next one, |
| 541 | // we add updatePeriodMillis to its start time. That time will have some slop, |
| 542 | // but that's okay. |
| 543 | sendUpdateIntentLocked(p, new int[] { appWidgetId }); |
| 544 | |
| 545 | // schedule the future updates |
| 546 | registerForBroadcastsLocked(p, getAppWidgetIds(p)); |
| 547 | saveStateLocked(); |
| 548 | } |
| 549 | } finally { |
| 550 | Binder.restoreCallingIdentity(ident); |
| 551 | } |
| 552 | } |
| 553 | |
Michael Jurka | 61a5b01 | 2012-04-13 10:39:45 -0700 | [diff] [blame] | 554 | public void bindAppWidgetId(int appWidgetId, ComponentName provider) { |
| 555 | mContext.enforceCallingPermission(android.Manifest.permission.BIND_APPWIDGET, |
| 556 | "bindAppWidgetId appWidgetId=" + appWidgetId + " provider=" + provider); |
| 557 | bindAppWidgetIdImpl(appWidgetId, provider); |
| 558 | } |
| 559 | |
| 560 | public boolean bindAppWidgetIdIfAllowed( |
| 561 | String packageName, int appWidgetId, ComponentName provider) { |
| 562 | try { |
| 563 | mContext.enforceCallingPermission(android.Manifest.permission.BIND_APPWIDGET, null); |
| 564 | } catch (SecurityException se) { |
| 565 | if (!callerHasBindAppWidgetPermission(packageName)) { |
| 566 | return false; |
| 567 | } |
| 568 | } |
| 569 | bindAppWidgetIdImpl(appWidgetId, provider); |
| 570 | return true; |
| 571 | } |
| 572 | |
| 573 | private boolean callerHasBindAppWidgetPermission(String packageName) { |
| 574 | int callingUid = Binder.getCallingUid(); |
| 575 | try { |
| 576 | if (!UserId.isSameApp(callingUid, getUidForPackage(packageName))) { |
| 577 | return false; |
| 578 | } |
| 579 | } catch (Exception e) { |
| 580 | return false; |
| 581 | } |
| 582 | synchronized (mAppWidgetIds) { |
| 583 | ensureStateLoadedLocked(); |
| 584 | return mPackagesWithBindWidgetPermission.contains(packageName); |
| 585 | } |
| 586 | } |
| 587 | |
| 588 | public boolean hasBindAppWidgetPermission(String packageName) { |
| 589 | mContext.enforceCallingPermission( |
| 590 | android.Manifest.permission.MODIFY_APPWIDGET_BIND_PERMISSIONS, |
| 591 | "hasBindAppWidgetPermission packageName=" + packageName); |
| 592 | |
| 593 | synchronized (mAppWidgetIds) { |
| 594 | ensureStateLoadedLocked(); |
| 595 | return mPackagesWithBindWidgetPermission.contains(packageName); |
| 596 | } |
| 597 | } |
| 598 | |
| 599 | public void setBindAppWidgetPermission(String packageName, boolean permission) { |
| 600 | mContext.enforceCallingPermission( |
| 601 | android.Manifest.permission.MODIFY_APPWIDGET_BIND_PERMISSIONS, |
| 602 | "setBindAppWidgetPermission packageName=" + packageName); |
| 603 | |
| 604 | synchronized (mAppWidgetIds) { |
| 605 | ensureStateLoadedLocked(); |
| 606 | if (permission) { |
| 607 | mPackagesWithBindWidgetPermission.add(packageName); |
| 608 | } else { |
| 609 | mPackagesWithBindWidgetPermission.remove(packageName); |
| 610 | } |
| 611 | } |
| 612 | saveStateLocked(); |
| 613 | } |
| 614 | |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 615 | // Binds to a specific RemoteViewsService |
| 616 | public void bindRemoteViewsService(int appWidgetId, Intent intent, IBinder connection) { |
| 617 | synchronized (mAppWidgetIds) { |
| 618 | ensureStateLoadedLocked(); |
| 619 | AppWidgetId id = lookupAppWidgetIdLocked(appWidgetId); |
| 620 | if (id == null) { |
| 621 | throw new IllegalArgumentException("bad appWidgetId"); |
| 622 | } |
| 623 | final ComponentName componentName = intent.getComponent(); |
| 624 | try { |
| 625 | final ServiceInfo si = mContext.getPackageManager().getServiceInfo(componentName, |
| 626 | PackageManager.GET_PERMISSIONS); |
| 627 | if (!android.Manifest.permission.BIND_REMOTEVIEWS.equals(si.permission)) { |
| 628 | throw new SecurityException("Selected service does not require " |
| 629 | + android.Manifest.permission.BIND_REMOTEVIEWS + ": " + componentName); |
| 630 | } |
| 631 | } catch (PackageManager.NameNotFoundException e) { |
| 632 | throw new IllegalArgumentException("Unknown component " + componentName); |
| 633 | } |
| 634 | |
| 635 | // If there is already a connection made for this service intent, then disconnect from |
| 636 | // that first. (This does not allow multiple connections to the same service under |
| 637 | // the same key) |
| 638 | ServiceConnectionProxy conn = null; |
| 639 | FilterComparison fc = new FilterComparison(intent); |
| 640 | Pair<Integer, FilterComparison> key = Pair.create(appWidgetId, fc); |
| 641 | if (mBoundRemoteViewsServices.containsKey(key)) { |
| 642 | conn = (ServiceConnectionProxy) mBoundRemoteViewsServices.get(key); |
| 643 | conn.disconnect(); |
| 644 | mContext.unbindService(conn); |
| 645 | mBoundRemoteViewsServices.remove(key); |
| 646 | } |
| 647 | |
Amith Yamasani | 37ce3a8 | 2012-02-06 12:04:42 -0800 | [diff] [blame] | 648 | int userId = UserId.getUserId(id.provider.uid); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 649 | // Bind to the RemoteViewsService (which will trigger a callback to the |
| 650 | // RemoteViewsAdapter.onServiceConnected()) |
| 651 | final long token = Binder.clearCallingIdentity(); |
| 652 | try { |
| 653 | conn = new ServiceConnectionProxy(key, connection); |
Amith Yamasani | 37ce3a8 | 2012-02-06 12:04:42 -0800 | [diff] [blame] | 654 | mContext.bindService(intent, conn, Context.BIND_AUTO_CREATE, userId); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 655 | mBoundRemoteViewsServices.put(key, conn); |
| 656 | } finally { |
| 657 | Binder.restoreCallingIdentity(token); |
| 658 | } |
| 659 | |
| 660 | // Add it to the mapping of RemoteViewsService to appWidgetIds so that we can determine |
| 661 | // when we can call back to the RemoteViewsService later to destroy associated |
| 662 | // factories. |
| 663 | incrementAppWidgetServiceRefCount(appWidgetId, fc); |
| 664 | } |
| 665 | } |
| 666 | |
| 667 | // Unbinds from a specific RemoteViewsService |
| 668 | public void unbindRemoteViewsService(int appWidgetId, Intent intent) { |
| 669 | synchronized (mAppWidgetIds) { |
| 670 | ensureStateLoadedLocked(); |
| 671 | // Unbind from the RemoteViewsService (which will trigger a callback to the bound |
| 672 | // RemoteViewsAdapter) |
| 673 | Pair<Integer, FilterComparison> key = Pair.create(appWidgetId, new FilterComparison( |
| 674 | intent)); |
| 675 | if (mBoundRemoteViewsServices.containsKey(key)) { |
| 676 | // We don't need to use the appWidgetId until after we are sure there is something |
| 677 | // to unbind. Note that this may mask certain issues with apps calling unbind() |
| 678 | // more than necessary. |
| 679 | AppWidgetId id = lookupAppWidgetIdLocked(appWidgetId); |
| 680 | if (id == null) { |
| 681 | throw new IllegalArgumentException("bad appWidgetId"); |
| 682 | } |
| 683 | |
| 684 | ServiceConnectionProxy conn = (ServiceConnectionProxy) mBoundRemoteViewsServices |
| 685 | .get(key); |
| 686 | conn.disconnect(); |
| 687 | mContext.unbindService(conn); |
| 688 | mBoundRemoteViewsServices.remove(key); |
| 689 | } else { |
| 690 | Log.e("AppWidgetService", "Error (unbindRemoteViewsService): Connection not bound"); |
| 691 | } |
| 692 | } |
| 693 | } |
| 694 | |
| 695 | // Unbinds from a RemoteViewsService when we delete an app widget |
| 696 | private void unbindAppWidgetRemoteViewsServicesLocked(AppWidgetId id) { |
| 697 | int appWidgetId = id.appWidgetId; |
| 698 | // Unbind all connections to Services bound to this AppWidgetId |
| 699 | Iterator<Pair<Integer, Intent.FilterComparison>> it = mBoundRemoteViewsServices.keySet() |
| 700 | .iterator(); |
| 701 | while (it.hasNext()) { |
| 702 | final Pair<Integer, Intent.FilterComparison> key = it.next(); |
| 703 | if (key.first.intValue() == appWidgetId) { |
| 704 | final ServiceConnectionProxy conn = (ServiceConnectionProxy) mBoundRemoteViewsServices |
| 705 | .get(key); |
| 706 | conn.disconnect(); |
| 707 | mContext.unbindService(conn); |
| 708 | it.remove(); |
| 709 | } |
| 710 | } |
| 711 | |
| 712 | // Check if we need to destroy any services (if no other app widgets are |
| 713 | // referencing the same service) |
Amith Yamasani | 37ce3a8 | 2012-02-06 12:04:42 -0800 | [diff] [blame] | 714 | decrementAppWidgetServiceRefCount(id); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 715 | } |
| 716 | |
| 717 | // Destroys the cached factory on the RemoteViewsService's side related to the specified intent |
Amith Yamasani | 37ce3a8 | 2012-02-06 12:04:42 -0800 | [diff] [blame] | 718 | private void destroyRemoteViewsService(final Intent intent, AppWidgetId id) { |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 719 | final ServiceConnection conn = new ServiceConnection() { |
| 720 | @Override |
| 721 | public void onServiceConnected(ComponentName name, IBinder service) { |
| 722 | final IRemoteViewsFactory cb = IRemoteViewsFactory.Stub.asInterface(service); |
| 723 | try { |
| 724 | cb.onDestroy(intent); |
| 725 | } catch (RemoteException e) { |
| 726 | e.printStackTrace(); |
| 727 | } catch (RuntimeException e) { |
| 728 | e.printStackTrace(); |
| 729 | } |
| 730 | mContext.unbindService(this); |
| 731 | } |
| 732 | |
| 733 | @Override |
| 734 | public void onServiceDisconnected(android.content.ComponentName name) { |
| 735 | // Do nothing |
| 736 | } |
| 737 | }; |
| 738 | |
Amith Yamasani | 37ce3a8 | 2012-02-06 12:04:42 -0800 | [diff] [blame] | 739 | int userId = UserId.getUserId(id.provider.uid); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 740 | // Bind to the service and remove the static intent->factory mapping in the |
| 741 | // RemoteViewsService. |
| 742 | final long token = Binder.clearCallingIdentity(); |
| 743 | try { |
Amith Yamasani | 37ce3a8 | 2012-02-06 12:04:42 -0800 | [diff] [blame] | 744 | mContext.bindService(intent, conn, Context.BIND_AUTO_CREATE, userId); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 745 | } finally { |
| 746 | Binder.restoreCallingIdentity(token); |
| 747 | } |
| 748 | } |
| 749 | |
| 750 | // Adds to the ref-count for a given RemoteViewsService intent |
| 751 | private void incrementAppWidgetServiceRefCount(int appWidgetId, FilterComparison fc) { |
| 752 | HashSet<Integer> appWidgetIds = null; |
| 753 | if (mRemoteViewsServicesAppWidgets.containsKey(fc)) { |
| 754 | appWidgetIds = mRemoteViewsServicesAppWidgets.get(fc); |
| 755 | } else { |
| 756 | appWidgetIds = new HashSet<Integer>(); |
| 757 | mRemoteViewsServicesAppWidgets.put(fc, appWidgetIds); |
| 758 | } |
| 759 | appWidgetIds.add(appWidgetId); |
| 760 | } |
| 761 | |
| 762 | // Subtracts from the ref-count for a given RemoteViewsService intent, prompting a delete if |
| 763 | // the ref-count reaches zero. |
Amith Yamasani | 37ce3a8 | 2012-02-06 12:04:42 -0800 | [diff] [blame] | 764 | private void decrementAppWidgetServiceRefCount(AppWidgetId id) { |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 765 | Iterator<FilterComparison> it = mRemoteViewsServicesAppWidgets.keySet().iterator(); |
| 766 | while (it.hasNext()) { |
| 767 | final FilterComparison key = it.next(); |
| 768 | final HashSet<Integer> ids = mRemoteViewsServicesAppWidgets.get(key); |
Amith Yamasani | 37ce3a8 | 2012-02-06 12:04:42 -0800 | [diff] [blame] | 769 | if (ids.remove(id.appWidgetId)) { |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 770 | // If we have removed the last app widget referencing this service, then we |
| 771 | // should destroy it and remove it from this set |
| 772 | if (ids.isEmpty()) { |
Amith Yamasani | 37ce3a8 | 2012-02-06 12:04:42 -0800 | [diff] [blame] | 773 | destroyRemoteViewsService(key.getIntent(), id); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 774 | it.remove(); |
| 775 | } |
| 776 | } |
| 777 | } |
| 778 | } |
| 779 | |
| 780 | public AppWidgetProviderInfo getAppWidgetInfo(int appWidgetId) { |
| 781 | synchronized (mAppWidgetIds) { |
| 782 | ensureStateLoadedLocked(); |
| 783 | AppWidgetId id = lookupAppWidgetIdLocked(appWidgetId); |
| 784 | if (id != null && id.provider != null && !id.provider.zombie) { |
| 785 | return id.provider.info; |
| 786 | } |
| 787 | return null; |
| 788 | } |
| 789 | } |
| 790 | |
| 791 | public RemoteViews getAppWidgetViews(int appWidgetId) { |
| 792 | synchronized (mAppWidgetIds) { |
| 793 | ensureStateLoadedLocked(); |
| 794 | AppWidgetId id = lookupAppWidgetIdLocked(appWidgetId); |
| 795 | if (id != null) { |
| 796 | return id.views; |
| 797 | } |
| 798 | return null; |
| 799 | } |
| 800 | } |
| 801 | |
| 802 | public List<AppWidgetProviderInfo> getInstalledProviders() { |
| 803 | synchronized (mAppWidgetIds) { |
| 804 | ensureStateLoadedLocked(); |
| 805 | final int N = mInstalledProviders.size(); |
| 806 | ArrayList<AppWidgetProviderInfo> result = new ArrayList<AppWidgetProviderInfo>(N); |
| 807 | for (int i = 0; i < N; i++) { |
| 808 | Provider p = mInstalledProviders.get(i); |
| 809 | if (!p.zombie) { |
| 810 | result.add(p.info); |
| 811 | } |
| 812 | } |
| 813 | return result; |
| 814 | } |
| 815 | } |
| 816 | |
| 817 | public void updateAppWidgetIds(int[] appWidgetIds, RemoteViews views) { |
| 818 | if (appWidgetIds == null) { |
| 819 | return; |
| 820 | } |
Adam Cohen | 311c79c | 2012-05-10 14:44:38 -0700 | [diff] [blame] | 821 | |
Adam Cohen | e582746 | 2012-07-16 12:02:10 -0700 | [diff] [blame] | 822 | int bitmapMemoryUsage = 0; |
| 823 | if (views != null) { |
| 824 | bitmapMemoryUsage = views.estimateMemoryUsage(); |
| 825 | } |
Adam Cohen | 311c79c | 2012-05-10 14:44:38 -0700 | [diff] [blame] | 826 | if (bitmapMemoryUsage > mMaxWidgetBitmapMemory) { |
| 827 | throw new IllegalArgumentException("RemoteViews for widget update exceeds maximum" + |
| 828 | " bitmap memory usage (used: " + bitmapMemoryUsage + ", max: " + |
| 829 | mMaxWidgetBitmapMemory + ") The total memory cannot exceed that required to" + |
| 830 | " fill the device's screen once."); |
| 831 | } |
| 832 | |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 833 | if (appWidgetIds.length == 0) { |
| 834 | return; |
| 835 | } |
| 836 | final int N = appWidgetIds.length; |
| 837 | |
| 838 | synchronized (mAppWidgetIds) { |
| 839 | ensureStateLoadedLocked(); |
| 840 | for (int i = 0; i < N; i++) { |
| 841 | AppWidgetId id = lookupAppWidgetIdLocked(appWidgetIds[i]); |
| 842 | updateAppWidgetInstanceLocked(id, views); |
| 843 | } |
| 844 | } |
| 845 | } |
| 846 | |
Adam Cohen | d2097eb | 2012-05-01 18:10:28 -0700 | [diff] [blame] | 847 | public void updateAppWidgetOptions(int appWidgetId, Bundle options) { |
Adam Cohen | e8724c8 | 2012-04-19 17:11:40 -0700 | [diff] [blame] | 848 | synchronized (mAppWidgetIds) { |
| 849 | ensureStateLoadedLocked(); |
| 850 | AppWidgetId id = lookupAppWidgetIdLocked(appWidgetId); |
| 851 | |
| 852 | if (id == null) { |
| 853 | return; |
| 854 | } |
| 855 | Provider p = id.provider; |
Adam Cohen | d2097eb | 2012-05-01 18:10:28 -0700 | [diff] [blame] | 856 | id.options = options; |
Adam Cohen | e8724c8 | 2012-04-19 17:11:40 -0700 | [diff] [blame] | 857 | |
| 858 | // send the broacast saying that this appWidgetId has been deleted |
Adam Cohen | d2097eb | 2012-05-01 18:10:28 -0700 | [diff] [blame] | 859 | Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_OPTIONS_CHANGED); |
Adam Cohen | e8724c8 | 2012-04-19 17:11:40 -0700 | [diff] [blame] | 860 | intent.setComponent(p.info.provider); |
| 861 | intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, id.appWidgetId); |
Adam Cohen | d2097eb | 2012-05-01 18:10:28 -0700 | [diff] [blame] | 862 | intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_OPTIONS, options); |
Adam Cohen | e8724c8 | 2012-04-19 17:11:40 -0700 | [diff] [blame] | 863 | mContext.sendBroadcast(intent, mUserId); |
| 864 | } |
| 865 | } |
| 866 | |
Adam Cohen | d2097eb | 2012-05-01 18:10:28 -0700 | [diff] [blame] | 867 | public Bundle getAppWidgetOptions(int appWidgetId) { |
Adam Cohen | e8724c8 | 2012-04-19 17:11:40 -0700 | [diff] [blame] | 868 | synchronized (mAppWidgetIds) { |
| 869 | ensureStateLoadedLocked(); |
| 870 | AppWidgetId id = lookupAppWidgetIdLocked(appWidgetId); |
Adam Cohen | d2097eb | 2012-05-01 18:10:28 -0700 | [diff] [blame] | 871 | if (id != null && id.options != null) { |
| 872 | return id.options; |
Adam Cohen | e8724c8 | 2012-04-19 17:11:40 -0700 | [diff] [blame] | 873 | } else { |
| 874 | return Bundle.EMPTY; |
| 875 | } |
| 876 | } |
| 877 | } |
| 878 | |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 879 | public void partiallyUpdateAppWidgetIds(int[] appWidgetIds, RemoteViews views) { |
| 880 | if (appWidgetIds == null) { |
| 881 | return; |
| 882 | } |
| 883 | if (appWidgetIds.length == 0) { |
| 884 | return; |
| 885 | } |
| 886 | final int N = appWidgetIds.length; |
| 887 | |
| 888 | synchronized (mAppWidgetIds) { |
| 889 | ensureStateLoadedLocked(); |
| 890 | for (int i = 0; i < N; i++) { |
| 891 | AppWidgetId id = lookupAppWidgetIdLocked(appWidgetIds[i]); |
| 892 | updateAppWidgetInstanceLocked(id, views, true); |
| 893 | } |
| 894 | } |
| 895 | } |
| 896 | |
| 897 | public void notifyAppWidgetViewDataChanged(int[] appWidgetIds, int viewId) { |
| 898 | if (appWidgetIds == null) { |
| 899 | return; |
| 900 | } |
| 901 | if (appWidgetIds.length == 0) { |
| 902 | return; |
| 903 | } |
| 904 | final int N = appWidgetIds.length; |
| 905 | |
| 906 | synchronized (mAppWidgetIds) { |
| 907 | ensureStateLoadedLocked(); |
| 908 | for (int i = 0; i < N; i++) { |
| 909 | AppWidgetId id = lookupAppWidgetIdLocked(appWidgetIds[i]); |
| 910 | notifyAppWidgetViewDataChangedInstanceLocked(id, viewId); |
| 911 | } |
| 912 | } |
| 913 | } |
| 914 | |
| 915 | public void updateAppWidgetProvider(ComponentName provider, RemoteViews views) { |
| 916 | synchronized (mAppWidgetIds) { |
| 917 | ensureStateLoadedLocked(); |
| 918 | Provider p = lookupProviderLocked(provider); |
| 919 | if (p == null) { |
| 920 | Slog.w(TAG, "updateAppWidgetProvider: provider doesn't exist: " + provider); |
| 921 | return; |
| 922 | } |
| 923 | ArrayList<AppWidgetId> instances = p.instances; |
| 924 | final int callingUid = Binder.getCallingUid(); |
| 925 | final int N = instances.size(); |
| 926 | for (int i = 0; i < N; i++) { |
| 927 | AppWidgetId id = instances.get(i); |
| 928 | if (canAccessAppWidgetId(id, callingUid)) { |
| 929 | updateAppWidgetInstanceLocked(id, views); |
| 930 | } |
| 931 | } |
| 932 | } |
| 933 | } |
| 934 | |
| 935 | void updateAppWidgetInstanceLocked(AppWidgetId id, RemoteViews views) { |
| 936 | updateAppWidgetInstanceLocked(id, views, false); |
| 937 | } |
| 938 | |
| 939 | void updateAppWidgetInstanceLocked(AppWidgetId id, RemoteViews views, boolean isPartialUpdate) { |
| 940 | // allow for stale appWidgetIds and other badness |
| 941 | // lookup also checks that the calling process can access the appWidgetId |
| 942 | // drop unbound appWidgetIds (shouldn't be possible under normal circumstances) |
| 943 | if (id != null && id.provider != null && !id.provider.zombie && !id.host.zombie) { |
| 944 | |
| 945 | // We do not want to save this RemoteViews |
| 946 | if (!isPartialUpdate) |
| 947 | id.views = views; |
| 948 | |
| 949 | // is anyone listening? |
| 950 | if (id.host.callbacks != null) { |
| 951 | try { |
| 952 | // the lock is held, but this is a oneway call |
| 953 | id.host.callbacks.updateAppWidget(id.appWidgetId, views); |
| 954 | } catch (RemoteException e) { |
| 955 | // It failed; remove the callback. No need to prune because |
| 956 | // we know that this host is still referenced by this instance. |
| 957 | id.host.callbacks = null; |
| 958 | } |
| 959 | } |
| 960 | } |
| 961 | } |
| 962 | |
| 963 | void notifyAppWidgetViewDataChangedInstanceLocked(AppWidgetId id, int viewId) { |
| 964 | // allow for stale appWidgetIds and other badness |
| 965 | // lookup also checks that the calling process can access the appWidgetId |
| 966 | // drop unbound appWidgetIds (shouldn't be possible under normal circumstances) |
| 967 | if (id != null && id.provider != null && !id.provider.zombie && !id.host.zombie) { |
| 968 | // is anyone listening? |
| 969 | if (id.host.callbacks != null) { |
| 970 | try { |
| 971 | // the lock is held, but this is a oneway call |
| 972 | id.host.callbacks.viewDataChanged(id.appWidgetId, viewId); |
| 973 | } catch (RemoteException e) { |
| 974 | // It failed; remove the callback. No need to prune because |
| 975 | // we know that this host is still referenced by this instance. |
| 976 | id.host.callbacks = null; |
| 977 | } |
| 978 | } |
| 979 | |
| 980 | // If the host is unavailable, then we call the associated |
| 981 | // RemoteViewsFactory.onDataSetChanged() directly |
| 982 | if (id.host.callbacks == null) { |
| 983 | Set<FilterComparison> keys = mRemoteViewsServicesAppWidgets.keySet(); |
| 984 | for (FilterComparison key : keys) { |
| 985 | if (mRemoteViewsServicesAppWidgets.get(key).contains(id.appWidgetId)) { |
| 986 | Intent intent = key.getIntent(); |
| 987 | |
| 988 | final ServiceConnection conn = new ServiceConnection() { |
| 989 | @Override |
| 990 | public void onServiceConnected(ComponentName name, IBinder service) { |
| 991 | IRemoteViewsFactory cb = IRemoteViewsFactory.Stub |
| 992 | .asInterface(service); |
| 993 | try { |
| 994 | cb.onDataSetChangedAsync(); |
| 995 | } catch (RemoteException e) { |
| 996 | e.printStackTrace(); |
| 997 | } catch (RuntimeException e) { |
| 998 | e.printStackTrace(); |
| 999 | } |
| 1000 | mContext.unbindService(this); |
| 1001 | } |
| 1002 | |
| 1003 | @Override |
| 1004 | public void onServiceDisconnected(android.content.ComponentName name) { |
| 1005 | // Do nothing |
| 1006 | } |
| 1007 | }; |
| 1008 | |
Amith Yamasani | 37ce3a8 | 2012-02-06 12:04:42 -0800 | [diff] [blame] | 1009 | int userId = UserId.getUserId(id.provider.uid); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1010 | // Bind to the service and call onDataSetChanged() |
| 1011 | final long token = Binder.clearCallingIdentity(); |
| 1012 | try { |
Amith Yamasani | 37ce3a8 | 2012-02-06 12:04:42 -0800 | [diff] [blame] | 1013 | mContext.bindService(intent, conn, Context.BIND_AUTO_CREATE, userId); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1014 | } finally { |
| 1015 | Binder.restoreCallingIdentity(token); |
| 1016 | } |
| 1017 | } |
| 1018 | } |
| 1019 | } |
| 1020 | } |
| 1021 | } |
| 1022 | |
| 1023 | public int[] startListening(IAppWidgetHost callbacks, String packageName, int hostId, |
| 1024 | List<RemoteViews> updatedViews) { |
| 1025 | int callingUid = enforceCallingUid(packageName); |
| 1026 | synchronized (mAppWidgetIds) { |
| 1027 | ensureStateLoadedLocked(); |
| 1028 | Host host = lookupOrAddHostLocked(callingUid, packageName, hostId); |
| 1029 | host.callbacks = callbacks; |
| 1030 | |
| 1031 | updatedViews.clear(); |
| 1032 | |
| 1033 | ArrayList<AppWidgetId> instances = host.instances; |
| 1034 | int N = instances.size(); |
| 1035 | int[] updatedIds = new int[N]; |
| 1036 | for (int i = 0; i < N; i++) { |
| 1037 | AppWidgetId id = instances.get(i); |
| 1038 | updatedIds[i] = id.appWidgetId; |
| 1039 | updatedViews.add(id.views); |
| 1040 | } |
| 1041 | return updatedIds; |
| 1042 | } |
| 1043 | } |
| 1044 | |
| 1045 | public void stopListening(int hostId) { |
| 1046 | synchronized (mAppWidgetIds) { |
| 1047 | ensureStateLoadedLocked(); |
| 1048 | Host host = lookupHostLocked(Binder.getCallingUid(), hostId); |
| 1049 | if (host != null) { |
| 1050 | host.callbacks = null; |
| 1051 | pruneHostLocked(host); |
| 1052 | } |
| 1053 | } |
| 1054 | } |
| 1055 | |
| 1056 | boolean canAccessAppWidgetId(AppWidgetId id, int callingUid) { |
| 1057 | if (id.host.uid == callingUid) { |
| 1058 | // Apps hosting the AppWidget have access to it. |
| 1059 | return true; |
| 1060 | } |
| 1061 | if (id.provider != null && id.provider.uid == callingUid) { |
| 1062 | // Apps providing the AppWidget have access to it (if the appWidgetId has been bound) |
| 1063 | return true; |
| 1064 | } |
| 1065 | if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.BIND_APPWIDGET) == PackageManager.PERMISSION_GRANTED) { |
| 1066 | // Apps that can bind have access to all appWidgetIds. |
| 1067 | return true; |
| 1068 | } |
| 1069 | // Nobody else can access it. |
| 1070 | return false; |
| 1071 | } |
| 1072 | |
| 1073 | AppWidgetId lookupAppWidgetIdLocked(int appWidgetId) { |
| 1074 | int callingUid = Binder.getCallingUid(); |
| 1075 | final int N = mAppWidgetIds.size(); |
| 1076 | for (int i = 0; i < N; i++) { |
| 1077 | AppWidgetId id = mAppWidgetIds.get(i); |
| 1078 | if (id.appWidgetId == appWidgetId && canAccessAppWidgetId(id, callingUid)) { |
| 1079 | return id; |
| 1080 | } |
| 1081 | } |
| 1082 | return null; |
| 1083 | } |
| 1084 | |
| 1085 | Provider lookupProviderLocked(ComponentName provider) { |
| 1086 | final int N = mInstalledProviders.size(); |
| 1087 | for (int i = 0; i < N; i++) { |
| 1088 | Provider p = mInstalledProviders.get(i); |
| 1089 | if (p.info.provider.equals(provider)) { |
| 1090 | return p; |
| 1091 | } |
| 1092 | } |
| 1093 | return null; |
| 1094 | } |
| 1095 | |
| 1096 | Host lookupHostLocked(int uid, int hostId) { |
| 1097 | final int N = mHosts.size(); |
| 1098 | for (int i = 0; i < N; i++) { |
| 1099 | Host h = mHosts.get(i); |
| 1100 | if (h.uid == uid && h.hostId == hostId) { |
| 1101 | return h; |
| 1102 | } |
| 1103 | } |
| 1104 | return null; |
| 1105 | } |
| 1106 | |
| 1107 | Host lookupOrAddHostLocked(int uid, String packageName, int hostId) { |
| 1108 | final int N = mHosts.size(); |
| 1109 | for (int i = 0; i < N; i++) { |
| 1110 | Host h = mHosts.get(i); |
| 1111 | if (h.hostId == hostId && h.packageName.equals(packageName)) { |
| 1112 | return h; |
| 1113 | } |
| 1114 | } |
| 1115 | Host host = new Host(); |
| 1116 | host.packageName = packageName; |
| 1117 | host.uid = uid; |
| 1118 | host.hostId = hostId; |
| 1119 | mHosts.add(host); |
| 1120 | return host; |
| 1121 | } |
| 1122 | |
| 1123 | void pruneHostLocked(Host host) { |
| 1124 | if (host.instances.size() == 0 && host.callbacks == null) { |
| 1125 | mHosts.remove(host); |
| 1126 | } |
| 1127 | } |
| 1128 | |
| 1129 | void loadAppWidgetList() { |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1130 | Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE); |
Amith Yamasani | 483f3b0 | 2012-03-13 16:08:00 -0700 | [diff] [blame] | 1131 | try { |
| 1132 | List<ResolveInfo> broadcastReceivers = mPm.queryIntentReceivers(intent, |
| 1133 | intent.resolveTypeIfNeeded(mContext.getContentResolver()), |
| 1134 | PackageManager.GET_META_DATA, mUserId); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1135 | |
Amith Yamasani | 483f3b0 | 2012-03-13 16:08:00 -0700 | [diff] [blame] | 1136 | final int N = broadcastReceivers == null ? 0 : broadcastReceivers.size(); |
| 1137 | for (int i = 0; i < N; i++) { |
| 1138 | ResolveInfo ri = broadcastReceivers.get(i); |
| 1139 | addProviderLocked(ri); |
| 1140 | } |
| 1141 | } catch (RemoteException re) { |
| 1142 | // Shouldn't happen, local call |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1143 | } |
| 1144 | } |
| 1145 | |
| 1146 | boolean addProviderLocked(ResolveInfo ri) { |
| 1147 | if ((ri.activityInfo.applicationInfo.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0) { |
| 1148 | return false; |
| 1149 | } |
| 1150 | if (!ri.activityInfo.isEnabled()) { |
| 1151 | return false; |
| 1152 | } |
| 1153 | Provider p = parseProviderInfoXml(new ComponentName(ri.activityInfo.packageName, |
| 1154 | ri.activityInfo.name), ri); |
| 1155 | if (p != null) { |
| 1156 | mInstalledProviders.add(p); |
| 1157 | return true; |
| 1158 | } else { |
| 1159 | return false; |
| 1160 | } |
| 1161 | } |
| 1162 | |
| 1163 | void removeProviderLocked(int index, Provider p) { |
| 1164 | int N = p.instances.size(); |
| 1165 | for (int i = 0; i < N; i++) { |
| 1166 | AppWidgetId id = p.instances.get(i); |
| 1167 | // Call back with empty RemoteViews |
| 1168 | updateAppWidgetInstanceLocked(id, null); |
| 1169 | // Stop telling the host about updates for this from now on |
| 1170 | cancelBroadcasts(p); |
| 1171 | // clear out references to this appWidgetId |
| 1172 | id.host.instances.remove(id); |
| 1173 | mAppWidgetIds.remove(id); |
| 1174 | id.provider = null; |
| 1175 | pruneHostLocked(id.host); |
| 1176 | id.host = null; |
| 1177 | } |
| 1178 | p.instances.clear(); |
| 1179 | mInstalledProviders.remove(index); |
| 1180 | mDeletedProviders.add(p); |
| 1181 | // no need to send the DISABLE broadcast, since the receiver is gone anyway |
| 1182 | cancelBroadcasts(p); |
| 1183 | } |
| 1184 | |
| 1185 | void sendEnableIntentLocked(Provider p) { |
| 1186 | Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_ENABLED); |
| 1187 | intent.setComponent(p.info.provider); |
Amith Yamasani | 67cf7d3 | 2012-02-16 14:31:23 -0800 | [diff] [blame] | 1188 | mContext.sendBroadcast(intent, mUserId); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1189 | } |
| 1190 | |
| 1191 | void sendUpdateIntentLocked(Provider p, int[] appWidgetIds) { |
| 1192 | if (appWidgetIds != null && appWidgetIds.length > 0) { |
| 1193 | Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE); |
| 1194 | intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, appWidgetIds); |
| 1195 | intent.setComponent(p.info.provider); |
Amith Yamasani | 67cf7d3 | 2012-02-16 14:31:23 -0800 | [diff] [blame] | 1196 | mContext.sendBroadcast(intent, mUserId); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1197 | } |
| 1198 | } |
| 1199 | |
| 1200 | void registerForBroadcastsLocked(Provider p, int[] appWidgetIds) { |
| 1201 | if (p.info.updatePeriodMillis > 0) { |
| 1202 | // if this is the first instance, set the alarm. otherwise, |
| 1203 | // rely on the fact that we've already set it and that |
| 1204 | // PendingIntent.getBroadcast will update the extras. |
| 1205 | boolean alreadyRegistered = p.broadcast != null; |
| 1206 | Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE); |
| 1207 | intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, appWidgetIds); |
| 1208 | intent.setComponent(p.info.provider); |
| 1209 | long token = Binder.clearCallingIdentity(); |
| 1210 | try { |
| 1211 | p.broadcast = PendingIntent.getBroadcast(mContext, 1, intent, |
| 1212 | PendingIntent.FLAG_UPDATE_CURRENT); |
| 1213 | } finally { |
| 1214 | Binder.restoreCallingIdentity(token); |
| 1215 | } |
| 1216 | if (!alreadyRegistered) { |
| 1217 | long period = p.info.updatePeriodMillis; |
| 1218 | if (period < MIN_UPDATE_PERIOD) { |
| 1219 | period = MIN_UPDATE_PERIOD; |
| 1220 | } |
| 1221 | mAlarmManager.setInexactRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP, SystemClock |
| 1222 | .elapsedRealtime() |
| 1223 | + period, period, p.broadcast); |
| 1224 | } |
| 1225 | } |
| 1226 | } |
| 1227 | |
| 1228 | static int[] getAppWidgetIds(Provider p) { |
| 1229 | int instancesSize = p.instances.size(); |
| 1230 | int appWidgetIds[] = new int[instancesSize]; |
| 1231 | for (int i = 0; i < instancesSize; i++) { |
| 1232 | appWidgetIds[i] = p.instances.get(i).appWidgetId; |
| 1233 | } |
| 1234 | return appWidgetIds; |
| 1235 | } |
| 1236 | |
| 1237 | public int[] getAppWidgetIds(ComponentName provider) { |
| 1238 | synchronized (mAppWidgetIds) { |
| 1239 | ensureStateLoadedLocked(); |
| 1240 | Provider p = lookupProviderLocked(provider); |
| 1241 | if (p != null && Binder.getCallingUid() == p.uid) { |
| 1242 | return getAppWidgetIds(p); |
| 1243 | } else { |
| 1244 | return new int[0]; |
| 1245 | } |
| 1246 | } |
| 1247 | } |
| 1248 | |
| 1249 | private Provider parseProviderInfoXml(ComponentName component, ResolveInfo ri) { |
| 1250 | Provider p = null; |
| 1251 | |
| 1252 | ActivityInfo activityInfo = ri.activityInfo; |
| 1253 | XmlResourceParser parser = null; |
| 1254 | try { |
Amith Yamasani | 483f3b0 | 2012-03-13 16:08:00 -0700 | [diff] [blame] | 1255 | parser = activityInfo.loadXmlMetaData(mContext.getPackageManager(), |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1256 | AppWidgetManager.META_DATA_APPWIDGET_PROVIDER); |
| 1257 | if (parser == null) { |
| 1258 | Slog.w(TAG, "No " + AppWidgetManager.META_DATA_APPWIDGET_PROVIDER |
| 1259 | + " meta-data for " + "AppWidget provider '" + component + '\''); |
| 1260 | return null; |
| 1261 | } |
| 1262 | |
| 1263 | AttributeSet attrs = Xml.asAttributeSet(parser); |
| 1264 | |
| 1265 | int type; |
| 1266 | while ((type = parser.next()) != XmlPullParser.END_DOCUMENT |
| 1267 | && type != XmlPullParser.START_TAG) { |
| 1268 | // drain whitespace, comments, etc. |
| 1269 | } |
| 1270 | |
| 1271 | String nodeName = parser.getName(); |
| 1272 | if (!"appwidget-provider".equals(nodeName)) { |
| 1273 | Slog.w(TAG, "Meta-data does not start with appwidget-provider tag for" |
| 1274 | + " AppWidget provider '" + component + '\''); |
| 1275 | return null; |
| 1276 | } |
| 1277 | |
| 1278 | p = new Provider(); |
| 1279 | AppWidgetProviderInfo info = p.info = new AppWidgetProviderInfo(); |
| 1280 | info.provider = component; |
| 1281 | p.uid = activityInfo.applicationInfo.uid; |
| 1282 | |
Amith Yamasani | 483f3b0 | 2012-03-13 16:08:00 -0700 | [diff] [blame] | 1283 | Resources res = mContext.getPackageManager() |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1284 | .getResourcesForApplication(activityInfo.applicationInfo); |
| 1285 | |
| 1286 | TypedArray sa = res.obtainAttributes(attrs, |
| 1287 | com.android.internal.R.styleable.AppWidgetProviderInfo); |
| 1288 | |
| 1289 | // These dimensions has to be resolved in the application's context. |
| 1290 | // We simply send back the raw complex data, which will be |
| 1291 | // converted to dp in {@link AppWidgetManager#getAppWidgetInfo}. |
| 1292 | TypedValue value = sa |
| 1293 | .peekValue(com.android.internal.R.styleable.AppWidgetProviderInfo_minWidth); |
| 1294 | info.minWidth = value != null ? value.data : 0; |
| 1295 | value = sa.peekValue(com.android.internal.R.styleable.AppWidgetProviderInfo_minHeight); |
| 1296 | info.minHeight = value != null ? value.data : 0; |
| 1297 | value = sa.peekValue( |
| 1298 | com.android.internal.R.styleable.AppWidgetProviderInfo_minResizeWidth); |
| 1299 | info.minResizeWidth = value != null ? value.data : info.minWidth; |
| 1300 | value = sa.peekValue( |
| 1301 | com.android.internal.R.styleable.AppWidgetProviderInfo_minResizeHeight); |
| 1302 | info.minResizeHeight = value != null ? value.data : info.minHeight; |
| 1303 | info.updatePeriodMillis = sa.getInt( |
| 1304 | com.android.internal.R.styleable.AppWidgetProviderInfo_updatePeriodMillis, 0); |
| 1305 | info.initialLayout = sa.getResourceId( |
| 1306 | com.android.internal.R.styleable.AppWidgetProviderInfo_initialLayout, 0); |
| 1307 | String className = sa |
| 1308 | .getString(com.android.internal.R.styleable.AppWidgetProviderInfo_configure); |
| 1309 | if (className != null) { |
| 1310 | info.configure = new ComponentName(component.getPackageName(), className); |
| 1311 | } |
Amith Yamasani | 483f3b0 | 2012-03-13 16:08:00 -0700 | [diff] [blame] | 1312 | info.label = activityInfo.loadLabel(mContext.getPackageManager()).toString(); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1313 | info.icon = ri.getIconResource(); |
| 1314 | info.previewImage = sa.getResourceId( |
| 1315 | com.android.internal.R.styleable.AppWidgetProviderInfo_previewImage, 0); |
| 1316 | info.autoAdvanceViewId = sa.getResourceId( |
| 1317 | com.android.internal.R.styleable.AppWidgetProviderInfo_autoAdvanceViewId, -1); |
| 1318 | info.resizeMode = sa.getInt( |
| 1319 | com.android.internal.R.styleable.AppWidgetProviderInfo_resizeMode, |
| 1320 | AppWidgetProviderInfo.RESIZE_NONE); |
| 1321 | |
| 1322 | sa.recycle(); |
| 1323 | } catch (Exception e) { |
| 1324 | // Ok to catch Exception here, because anything going wrong because |
| 1325 | // of what a client process passes to us should not be fatal for the |
| 1326 | // system process. |
| 1327 | Slog.w(TAG, "XML parsing failed for AppWidget provider '" + component + '\'', e); |
| 1328 | return null; |
| 1329 | } finally { |
| 1330 | if (parser != null) |
| 1331 | parser.close(); |
| 1332 | } |
| 1333 | return p; |
| 1334 | } |
| 1335 | |
| 1336 | int getUidForPackage(String packageName) throws PackageManager.NameNotFoundException { |
Amith Yamasani | 483f3b0 | 2012-03-13 16:08:00 -0700 | [diff] [blame] | 1337 | PackageInfo pkgInfo = null; |
| 1338 | try { |
| 1339 | pkgInfo = mPm.getPackageInfo(packageName, 0, mUserId); |
| 1340 | } catch (RemoteException re) { |
| 1341 | // Shouldn't happen, local call |
| 1342 | } |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1343 | if (pkgInfo == null || pkgInfo.applicationInfo == null) { |
| 1344 | throw new PackageManager.NameNotFoundException(); |
| 1345 | } |
| 1346 | return pkgInfo.applicationInfo.uid; |
| 1347 | } |
| 1348 | |
| 1349 | int enforceCallingUid(String packageName) throws IllegalArgumentException { |
| 1350 | int callingUid = Binder.getCallingUid(); |
| 1351 | int packageUid; |
| 1352 | try { |
| 1353 | packageUid = getUidForPackage(packageName); |
| 1354 | } catch (PackageManager.NameNotFoundException ex) { |
| 1355 | throw new IllegalArgumentException("packageName and uid don't match packageName=" |
| 1356 | + packageName); |
| 1357 | } |
| 1358 | if (!UserId.isSameApp(callingUid, packageUid)) { |
| 1359 | throw new IllegalArgumentException("packageName and uid don't match packageName=" |
| 1360 | + packageName); |
| 1361 | } |
| 1362 | return callingUid; |
| 1363 | } |
| 1364 | |
| 1365 | void sendInitialBroadcasts() { |
| 1366 | synchronized (mAppWidgetIds) { |
| 1367 | ensureStateLoadedLocked(); |
| 1368 | final int N = mInstalledProviders.size(); |
| 1369 | for (int i = 0; i < N; i++) { |
| 1370 | Provider p = mInstalledProviders.get(i); |
| 1371 | if (p.instances.size() > 0) { |
| 1372 | sendEnableIntentLocked(p); |
| 1373 | int[] appWidgetIds = getAppWidgetIds(p); |
| 1374 | sendUpdateIntentLocked(p, appWidgetIds); |
| 1375 | registerForBroadcastsLocked(p, appWidgetIds); |
| 1376 | } |
| 1377 | } |
| 1378 | } |
| 1379 | } |
| 1380 | |
| 1381 | // only call from initialization -- it assumes that the data structures are all empty |
| 1382 | void loadStateLocked() { |
| 1383 | AtomicFile file = savedStateFile(); |
| 1384 | try { |
| 1385 | FileInputStream stream = file.openRead(); |
| 1386 | readStateFromFileLocked(stream); |
| 1387 | |
| 1388 | if (stream != null) { |
| 1389 | try { |
| 1390 | stream.close(); |
| 1391 | } catch (IOException e) { |
| 1392 | Slog.w(TAG, "Failed to close state FileInputStream " + e); |
| 1393 | } |
| 1394 | } |
| 1395 | } catch (FileNotFoundException e) { |
| 1396 | Slog.w(TAG, "Failed to read state: " + e); |
| 1397 | } |
| 1398 | } |
| 1399 | |
| 1400 | void saveStateLocked() { |
| 1401 | AtomicFile file = savedStateFile(); |
| 1402 | FileOutputStream stream; |
| 1403 | try { |
| 1404 | stream = file.startWrite(); |
| 1405 | if (writeStateToFileLocked(stream)) { |
| 1406 | file.finishWrite(stream); |
| 1407 | } else { |
| 1408 | file.failWrite(stream); |
| 1409 | Slog.w(TAG, "Failed to save state, restoring backup."); |
| 1410 | } |
| 1411 | } catch (IOException e) { |
| 1412 | Slog.w(TAG, "Failed open state file for write: " + e); |
| 1413 | } |
| 1414 | } |
| 1415 | |
| 1416 | boolean writeStateToFileLocked(FileOutputStream stream) { |
| 1417 | int N; |
| 1418 | |
| 1419 | try { |
| 1420 | XmlSerializer out = new FastXmlSerializer(); |
| 1421 | out.setOutput(stream, "utf-8"); |
| 1422 | out.startDocument(null, true); |
| 1423 | out.startTag(null, "gs"); |
| 1424 | |
| 1425 | int providerIndex = 0; |
| 1426 | N = mInstalledProviders.size(); |
| 1427 | for (int i = 0; i < N; i++) { |
| 1428 | Provider p = mInstalledProviders.get(i); |
| 1429 | if (p.instances.size() > 0) { |
| 1430 | out.startTag(null, "p"); |
| 1431 | out.attribute(null, "pkg", p.info.provider.getPackageName()); |
| 1432 | out.attribute(null, "cl", p.info.provider.getClassName()); |
| 1433 | out.endTag(null, "p"); |
| 1434 | p.tag = providerIndex; |
| 1435 | providerIndex++; |
| 1436 | } |
| 1437 | } |
| 1438 | |
| 1439 | N = mHosts.size(); |
| 1440 | for (int i = 0; i < N; i++) { |
| 1441 | Host host = mHosts.get(i); |
| 1442 | out.startTag(null, "h"); |
| 1443 | out.attribute(null, "pkg", host.packageName); |
| 1444 | out.attribute(null, "id", Integer.toHexString(host.hostId)); |
| 1445 | out.endTag(null, "h"); |
| 1446 | host.tag = i; |
| 1447 | } |
| 1448 | |
| 1449 | N = mAppWidgetIds.size(); |
| 1450 | for (int i = 0; i < N; i++) { |
| 1451 | AppWidgetId id = mAppWidgetIds.get(i); |
| 1452 | out.startTag(null, "g"); |
| 1453 | out.attribute(null, "id", Integer.toHexString(id.appWidgetId)); |
| 1454 | out.attribute(null, "h", Integer.toHexString(id.host.tag)); |
| 1455 | if (id.provider != null) { |
| 1456 | out.attribute(null, "p", Integer.toHexString(id.provider.tag)); |
| 1457 | } |
| 1458 | out.endTag(null, "g"); |
| 1459 | } |
| 1460 | |
Michael Jurka | 61a5b01 | 2012-04-13 10:39:45 -0700 | [diff] [blame] | 1461 | Iterator<String> it = mPackagesWithBindWidgetPermission.iterator(); |
| 1462 | while (it.hasNext()) { |
| 1463 | out.startTag(null, "b"); |
| 1464 | out.attribute(null, "packageName", it.next()); |
| 1465 | out.endTag(null, "b"); |
| 1466 | } |
| 1467 | |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1468 | out.endTag(null, "gs"); |
| 1469 | |
| 1470 | out.endDocument(); |
| 1471 | return true; |
| 1472 | } catch (IOException e) { |
| 1473 | Slog.w(TAG, "Failed to write state: " + e); |
| 1474 | return false; |
| 1475 | } |
| 1476 | } |
| 1477 | |
| 1478 | void readStateFromFileLocked(FileInputStream stream) { |
| 1479 | boolean success = false; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1480 | try { |
| 1481 | XmlPullParser parser = Xml.newPullParser(); |
| 1482 | parser.setInput(stream, null); |
| 1483 | |
| 1484 | int type; |
| 1485 | int providerIndex = 0; |
| 1486 | HashMap<Integer, Provider> loadedProviders = new HashMap<Integer, Provider>(); |
| 1487 | do { |
| 1488 | type = parser.next(); |
| 1489 | if (type == XmlPullParser.START_TAG) { |
| 1490 | String tag = parser.getName(); |
| 1491 | if ("p".equals(tag)) { |
| 1492 | // TODO: do we need to check that this package has the same signature |
| 1493 | // as before? |
| 1494 | String pkg = parser.getAttributeValue(null, "pkg"); |
| 1495 | String cl = parser.getAttributeValue(null, "cl"); |
| 1496 | |
| 1497 | final PackageManager packageManager = mContext.getPackageManager(); |
| 1498 | try { |
| 1499 | packageManager.getReceiverInfo(new ComponentName(pkg, cl), 0); |
| 1500 | } catch (PackageManager.NameNotFoundException e) { |
| 1501 | String[] pkgs = packageManager |
| 1502 | .currentToCanonicalPackageNames(new String[] { pkg }); |
| 1503 | pkg = pkgs[0]; |
| 1504 | } |
| 1505 | |
| 1506 | Provider p = lookupProviderLocked(new ComponentName(pkg, cl)); |
| 1507 | if (p == null && mSafeMode) { |
| 1508 | // if we're in safe mode, make a temporary one |
| 1509 | p = new Provider(); |
| 1510 | p.info = new AppWidgetProviderInfo(); |
| 1511 | p.info.provider = new ComponentName(pkg, cl); |
| 1512 | p.zombie = true; |
| 1513 | mInstalledProviders.add(p); |
| 1514 | } |
| 1515 | if (p != null) { |
| 1516 | // if it wasn't uninstalled or something |
| 1517 | loadedProviders.put(providerIndex, p); |
| 1518 | } |
| 1519 | providerIndex++; |
| 1520 | } else if ("h".equals(tag)) { |
| 1521 | Host host = new Host(); |
| 1522 | |
| 1523 | // TODO: do we need to check that this package has the same signature |
| 1524 | // as before? |
| 1525 | host.packageName = parser.getAttributeValue(null, "pkg"); |
| 1526 | try { |
| 1527 | host.uid = getUidForPackage(host.packageName); |
| 1528 | } catch (PackageManager.NameNotFoundException ex) { |
| 1529 | host.zombie = true; |
| 1530 | } |
| 1531 | if (!host.zombie || mSafeMode) { |
| 1532 | // In safe mode, we don't discard the hosts we don't recognize |
| 1533 | // so that they're not pruned from our list. Otherwise, we do. |
| 1534 | host.hostId = Integer |
| 1535 | .parseInt(parser.getAttributeValue(null, "id"), 16); |
| 1536 | mHosts.add(host); |
| 1537 | } |
Michael Jurka | 61a5b01 | 2012-04-13 10:39:45 -0700 | [diff] [blame] | 1538 | } else if ("b".equals(tag)) { |
| 1539 | String packageName = parser.getAttributeValue(null, "packageName"); |
| 1540 | if (packageName != null) { |
| 1541 | mPackagesWithBindWidgetPermission.add(packageName); |
| 1542 | } |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1543 | } else if ("g".equals(tag)) { |
| 1544 | AppWidgetId id = new AppWidgetId(); |
| 1545 | id.appWidgetId = Integer.parseInt(parser.getAttributeValue(null, "id"), 16); |
| 1546 | if (id.appWidgetId >= mNextAppWidgetId) { |
| 1547 | mNextAppWidgetId = id.appWidgetId + 1; |
| 1548 | } |
| 1549 | |
| 1550 | String providerString = parser.getAttributeValue(null, "p"); |
| 1551 | if (providerString != null) { |
| 1552 | // there's no provider if it hasn't been bound yet. |
| 1553 | // maybe we don't have to save this, but it brings the system |
| 1554 | // to the state it was in. |
| 1555 | int pIndex = Integer.parseInt(providerString, 16); |
| 1556 | id.provider = loadedProviders.get(pIndex); |
| 1557 | if (false) { |
| 1558 | Slog.d(TAG, "bound appWidgetId=" + id.appWidgetId + " to provider " |
| 1559 | + pIndex + " which is " + id.provider); |
| 1560 | } |
| 1561 | if (id.provider == null) { |
| 1562 | // This provider is gone. We just let the host figure out |
| 1563 | // that this happened when it fails to load it. |
| 1564 | continue; |
| 1565 | } |
| 1566 | } |
| 1567 | |
| 1568 | int hIndex = Integer.parseInt(parser.getAttributeValue(null, "h"), 16); |
| 1569 | id.host = mHosts.get(hIndex); |
| 1570 | if (id.host == null) { |
| 1571 | // This host is gone. |
| 1572 | continue; |
| 1573 | } |
| 1574 | |
| 1575 | if (id.provider != null) { |
| 1576 | id.provider.instances.add(id); |
| 1577 | } |
| 1578 | id.host.instances.add(id); |
| 1579 | mAppWidgetIds.add(id); |
| 1580 | } |
| 1581 | } |
| 1582 | } while (type != XmlPullParser.END_DOCUMENT); |
| 1583 | success = true; |
| 1584 | } catch (NullPointerException e) { |
| 1585 | Slog.w(TAG, "failed parsing " + e); |
| 1586 | } catch (NumberFormatException e) { |
| 1587 | Slog.w(TAG, "failed parsing " + e); |
| 1588 | } catch (XmlPullParserException e) { |
| 1589 | Slog.w(TAG, "failed parsing " + e); |
| 1590 | } catch (IOException e) { |
| 1591 | Slog.w(TAG, "failed parsing " + e); |
| 1592 | } catch (IndexOutOfBoundsException e) { |
| 1593 | Slog.w(TAG, "failed parsing " + e); |
| 1594 | } |
| 1595 | |
| 1596 | if (success) { |
| 1597 | // delete any hosts that didn't manage to get connected (should happen) |
| 1598 | // if it matters, they'll be reconnected. |
| 1599 | for (int i = mHosts.size() - 1; i >= 0; i--) { |
| 1600 | pruneHostLocked(mHosts.get(i)); |
| 1601 | } |
| 1602 | } else { |
| 1603 | // failed reading, clean up |
| 1604 | Slog.w(TAG, "Failed to read state, clearing widgets and hosts."); |
| 1605 | |
| 1606 | mAppWidgetIds.clear(); |
| 1607 | mHosts.clear(); |
| 1608 | final int N = mInstalledProviders.size(); |
| 1609 | for (int i = 0; i < N; i++) { |
| 1610 | mInstalledProviders.get(i).instances.clear(); |
| 1611 | } |
| 1612 | } |
| 1613 | } |
| 1614 | |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 1615 | static File getSettingsFile(int userId) { |
| 1616 | return new File("/data/system/users/" + userId + "/" + SETTINGS_FILENAME); |
| 1617 | } |
| 1618 | |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1619 | AtomicFile savedStateFile() { |
Amith Yamasani | 67cf7d3 | 2012-02-16 14:31:23 -0800 | [diff] [blame] | 1620 | File dir = new File("/data/system/users/" + mUserId); |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 1621 | File settingsFile = getSettingsFile(mUserId); |
Amith Yamasani | e0eb39b | 2012-05-01 13:48:48 -0700 | [diff] [blame] | 1622 | if (!settingsFile.exists() && mUserId == 0) { |
| 1623 | if (!dir.exists()) { |
| 1624 | dir.mkdirs(); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1625 | } |
Amith Yamasani | e0eb39b | 2012-05-01 13:48:48 -0700 | [diff] [blame] | 1626 | // Migrate old data |
| 1627 | File oldFile = new File("/data/system/" + SETTINGS_FILENAME); |
| 1628 | // Method doesn't throw an exception on failure. Ignore any errors |
| 1629 | // in moving the file (like non-existence) |
| 1630 | oldFile.renameTo(settingsFile); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1631 | } |
| 1632 | return new AtomicFile(settingsFile); |
| 1633 | } |
| 1634 | |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 1635 | void onUserRemoved() { |
| 1636 | // prune the ones we don't want to keep |
| 1637 | int N = mInstalledProviders.size(); |
| 1638 | for (int i = N - 1; i >= 0; i--) { |
| 1639 | Provider p = mInstalledProviders.get(i); |
| 1640 | cancelBroadcasts(p); |
| 1641 | } |
| 1642 | getSettingsFile(mUserId).delete(); |
| 1643 | } |
| 1644 | |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1645 | void addProvidersForPackageLocked(String pkgName) { |
| 1646 | Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE); |
| 1647 | intent.setPackage(pkgName); |
Amith Yamasani | 483f3b0 | 2012-03-13 16:08:00 -0700 | [diff] [blame] | 1648 | List<ResolveInfo> broadcastReceivers; |
| 1649 | try { |
| 1650 | broadcastReceivers = mPm.queryIntentReceivers(intent, |
| 1651 | intent.resolveTypeIfNeeded(mContext.getContentResolver()), |
| 1652 | PackageManager.GET_META_DATA, mUserId); |
| 1653 | } catch (RemoteException re) { |
| 1654 | // Shouldn't happen, local call |
| 1655 | return; |
| 1656 | } |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1657 | final int N = broadcastReceivers == null ? 0 : broadcastReceivers.size(); |
| 1658 | for (int i = 0; i < N; i++) { |
| 1659 | ResolveInfo ri = broadcastReceivers.get(i); |
| 1660 | ActivityInfo ai = ri.activityInfo; |
| 1661 | if ((ai.applicationInfo.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0) { |
| 1662 | continue; |
| 1663 | } |
| 1664 | if (pkgName.equals(ai.packageName)) { |
| 1665 | addProviderLocked(ri); |
| 1666 | } |
| 1667 | } |
| 1668 | } |
| 1669 | |
| 1670 | void updateProvidersForPackageLocked(String pkgName) { |
| 1671 | HashSet<String> keep = new HashSet<String>(); |
| 1672 | Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE); |
| 1673 | intent.setPackage(pkgName); |
Amith Yamasani | 483f3b0 | 2012-03-13 16:08:00 -0700 | [diff] [blame] | 1674 | List<ResolveInfo> broadcastReceivers; |
| 1675 | try { |
| 1676 | broadcastReceivers = mPm.queryIntentReceivers(intent, |
| 1677 | intent.resolveTypeIfNeeded(mContext.getContentResolver()), |
| 1678 | PackageManager.GET_META_DATA, mUserId); |
| 1679 | } catch (RemoteException re) { |
| 1680 | // Shouldn't happen, local call |
| 1681 | return; |
| 1682 | } |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1683 | |
| 1684 | // add the missing ones and collect which ones to keep |
| 1685 | int N = broadcastReceivers == null ? 0 : broadcastReceivers.size(); |
| 1686 | for (int i = 0; i < N; i++) { |
| 1687 | ResolveInfo ri = broadcastReceivers.get(i); |
| 1688 | ActivityInfo ai = ri.activityInfo; |
| 1689 | if ((ai.applicationInfo.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0) { |
| 1690 | continue; |
| 1691 | } |
| 1692 | if (pkgName.equals(ai.packageName)) { |
| 1693 | ComponentName component = new ComponentName(ai.packageName, ai.name); |
| 1694 | Provider p = lookupProviderLocked(component); |
| 1695 | if (p == null) { |
| 1696 | if (addProviderLocked(ri)) { |
| 1697 | keep.add(ai.name); |
| 1698 | } |
| 1699 | } else { |
| 1700 | Provider parsed = parseProviderInfoXml(component, ri); |
| 1701 | if (parsed != null) { |
| 1702 | keep.add(ai.name); |
| 1703 | // Use the new AppWidgetProviderInfo. |
| 1704 | p.info = parsed.info; |
| 1705 | // If it's enabled |
| 1706 | final int M = p.instances.size(); |
| 1707 | if (M > 0) { |
| 1708 | int[] appWidgetIds = getAppWidgetIds(p); |
| 1709 | // Reschedule for the new updatePeriodMillis (don't worry about handling |
| 1710 | // it specially if updatePeriodMillis didn't change because we just sent |
| 1711 | // an update, and the next one will be updatePeriodMillis from now). |
| 1712 | cancelBroadcasts(p); |
| 1713 | registerForBroadcastsLocked(p, appWidgetIds); |
| 1714 | // If it's currently showing, call back with the new |
| 1715 | // AppWidgetProviderInfo. |
| 1716 | for (int j = 0; j < M; j++) { |
| 1717 | AppWidgetId id = p.instances.get(j); |
| 1718 | id.views = null; |
| 1719 | if (id.host != null && id.host.callbacks != null) { |
| 1720 | try { |
| 1721 | id.host.callbacks.providerChanged(id.appWidgetId, p.info); |
| 1722 | } catch (RemoteException ex) { |
| 1723 | // It failed; remove the callback. No need to prune because |
| 1724 | // we know that this host is still referenced by this |
| 1725 | // instance. |
| 1726 | id.host.callbacks = null; |
| 1727 | } |
| 1728 | } |
| 1729 | } |
| 1730 | // Now that we've told the host, push out an update. |
| 1731 | sendUpdateIntentLocked(p, appWidgetIds); |
| 1732 | } |
| 1733 | } |
| 1734 | } |
| 1735 | } |
| 1736 | } |
| 1737 | |
| 1738 | // prune the ones we don't want to keep |
| 1739 | N = mInstalledProviders.size(); |
| 1740 | for (int i = N - 1; i >= 0; i--) { |
| 1741 | Provider p = mInstalledProviders.get(i); |
| 1742 | if (pkgName.equals(p.info.provider.getPackageName()) |
| 1743 | && !keep.contains(p.info.provider.getClassName())) { |
| 1744 | removeProviderLocked(i, p); |
| 1745 | } |
| 1746 | } |
| 1747 | } |
| 1748 | |
| 1749 | void removeProvidersForPackageLocked(String pkgName) { |
| 1750 | int N = mInstalledProviders.size(); |
| 1751 | for (int i = N - 1; i >= 0; i--) { |
| 1752 | Provider p = mInstalledProviders.get(i); |
| 1753 | if (pkgName.equals(p.info.provider.getPackageName())) { |
| 1754 | removeProviderLocked(i, p); |
| 1755 | } |
| 1756 | } |
| 1757 | |
| 1758 | // Delete the hosts for this package too |
| 1759 | // |
| 1760 | // By now, we have removed any AppWidgets that were in any hosts here, |
| 1761 | // so we don't need to worry about sending DISABLE broadcasts to them. |
| 1762 | N = mHosts.size(); |
| 1763 | for (int i = N - 1; i >= 0; i--) { |
| 1764 | Host host = mHosts.get(i); |
| 1765 | if (pkgName.equals(host.packageName)) { |
| 1766 | deleteHostLocked(host); |
| 1767 | } |
| 1768 | } |
| 1769 | } |
| 1770 | } |