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; |
Jeff Brown | a8b9def | 2012-07-23 14:22:49 -0700 | [diff] [blame] | 39 | import android.graphics.Point; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 40 | import android.net.Uri; |
| 41 | import android.os.Binder; |
| 42 | import android.os.Bundle; |
Amith Yamasani | 61f5737 | 2012-08-31 12:12:28 -0700 | [diff] [blame] | 43 | import android.os.Environment; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 44 | import android.os.IBinder; |
Jim Miller | f229e4d | 2012-09-12 20:32:50 -0700 | [diff] [blame] | 45 | import android.os.Process; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 46 | import android.os.RemoteException; |
| 47 | import android.os.SystemClock; |
Dianne Hackborn | f02b60a | 2012-08-16 10:48:27 -0700 | [diff] [blame] | 48 | import android.os.UserHandle; |
Dianne Hackborn | 39606a0 | 2012-07-31 17:54:35 -0700 | [diff] [blame] | 49 | import android.util.AtomicFile; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 50 | import android.util.AttributeSet; |
| 51 | import android.util.Log; |
| 52 | import android.util.Pair; |
| 53 | import android.util.Slog; |
| 54 | import android.util.TypedValue; |
| 55 | import android.util.Xml; |
Jeff Brown | a8b9def | 2012-07-23 14:22:49 -0700 | [diff] [blame] | 56 | import android.view.Display; |
Adam Cohen | 311c79c | 2012-05-10 14:44:38 -0700 | [diff] [blame] | 57 | import android.view.WindowManager; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 58 | import android.widget.RemoteViews; |
| 59 | |
| 60 | import com.android.internal.appwidget.IAppWidgetHost; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 61 | import com.android.internal.util.FastXmlSerializer; |
| 62 | import com.android.internal.widget.IRemoteViewsAdapterConnection; |
| 63 | import com.android.internal.widget.IRemoteViewsFactory; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 64 | |
| 65 | import org.xmlpull.v1.XmlPullParser; |
| 66 | import org.xmlpull.v1.XmlPullParserException; |
| 67 | import org.xmlpull.v1.XmlSerializer; |
| 68 | |
| 69 | import java.io.File; |
| 70 | import java.io.FileDescriptor; |
| 71 | import java.io.FileInputStream; |
| 72 | import java.io.FileNotFoundException; |
| 73 | import java.io.FileOutputStream; |
| 74 | import java.io.IOException; |
| 75 | import java.io.PrintWriter; |
| 76 | import java.util.ArrayList; |
| 77 | import java.util.HashMap; |
| 78 | import java.util.HashSet; |
| 79 | import java.util.Iterator; |
| 80 | import java.util.List; |
| 81 | import java.util.Locale; |
| 82 | import java.util.Set; |
| 83 | |
| 84 | class AppWidgetServiceImpl { |
| 85 | |
| 86 | private static final String TAG = "AppWidgetServiceImpl"; |
| 87 | private static final String SETTINGS_FILENAME = "appwidgets.xml"; |
| 88 | private static final int MIN_UPDATE_PERIOD = 30 * 60 * 1000; // 30 minutes |
| 89 | |
Amith Yamasani | 8320de8 | 2012-10-05 16:10:38 -0700 | [diff] [blame] | 90 | private static boolean DBG = false; |
| 91 | |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 92 | /* |
| 93 | * When identifying a Host or Provider based on the calling process, use the uid field. When |
| 94 | * identifying a Host or Provider based on a package manager broadcast, use the package given. |
| 95 | */ |
| 96 | |
| 97 | static class Provider { |
| 98 | int uid; |
| 99 | AppWidgetProviderInfo info; |
| 100 | ArrayList<AppWidgetId> instances = new ArrayList<AppWidgetId>(); |
| 101 | PendingIntent broadcast; |
| 102 | boolean zombie; // if we're in safe mode, don't prune this just because nobody references it |
| 103 | |
| 104 | int tag; // for use while saving state (the index) |
| 105 | } |
| 106 | |
| 107 | static class Host { |
| 108 | int uid; |
| 109 | int hostId; |
| 110 | String packageName; |
| 111 | ArrayList<AppWidgetId> instances = new ArrayList<AppWidgetId>(); |
| 112 | IAppWidgetHost callbacks; |
| 113 | boolean zombie; // if we're in safe mode, don't prune this just because nobody references it |
| 114 | |
| 115 | int tag; // for use while saving state (the index) |
| 116 | } |
| 117 | |
| 118 | static class AppWidgetId { |
| 119 | int appWidgetId; |
| 120 | Provider provider; |
| 121 | RemoteViews views; |
Adam Cohen | d2097eb | 2012-05-01 18:10:28 -0700 | [diff] [blame] | 122 | Bundle options; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 123 | Host host; |
| 124 | } |
| 125 | |
| 126 | /** |
| 127 | * Acts as a proxy between the ServiceConnection and the RemoteViewsAdapterConnection. This |
| 128 | * needs to be a static inner class since a reference to the ServiceConnection is held globally |
| 129 | * and may lead us to leak AppWidgetService instances (if there were more than one). |
| 130 | */ |
| 131 | static class ServiceConnectionProxy implements ServiceConnection { |
| 132 | private final IBinder mConnectionCb; |
| 133 | |
| 134 | ServiceConnectionProxy(Pair<Integer, Intent.FilterComparison> key, IBinder connectionCb) { |
| 135 | mConnectionCb = connectionCb; |
| 136 | } |
| 137 | |
| 138 | public void onServiceConnected(ComponentName name, IBinder service) { |
| 139 | final IRemoteViewsAdapterConnection cb = IRemoteViewsAdapterConnection.Stub |
| 140 | .asInterface(mConnectionCb); |
| 141 | try { |
| 142 | cb.onServiceConnected(service); |
| 143 | } catch (Exception e) { |
| 144 | e.printStackTrace(); |
| 145 | } |
| 146 | } |
| 147 | |
| 148 | public void onServiceDisconnected(ComponentName name) { |
| 149 | disconnect(); |
| 150 | } |
| 151 | |
| 152 | public void disconnect() { |
| 153 | final IRemoteViewsAdapterConnection cb = IRemoteViewsAdapterConnection.Stub |
| 154 | .asInterface(mConnectionCb); |
| 155 | try { |
| 156 | cb.onServiceDisconnected(); |
| 157 | } catch (Exception e) { |
| 158 | e.printStackTrace(); |
| 159 | } |
| 160 | } |
| 161 | } |
| 162 | |
| 163 | // Manages active connections to RemoteViewsServices |
| 164 | private final HashMap<Pair<Integer, FilterComparison>, ServiceConnection> mBoundRemoteViewsServices = new HashMap<Pair<Integer, FilterComparison>, ServiceConnection>(); |
| 165 | // Manages persistent references to RemoteViewsServices from different App Widgets |
| 166 | private final HashMap<FilterComparison, HashSet<Integer>> mRemoteViewsServicesAppWidgets = new HashMap<FilterComparison, HashSet<Integer>>(); |
| 167 | |
| 168 | Context mContext; |
| 169 | Locale mLocale; |
Amith Yamasani | 483f3b0 | 2012-03-13 16:08:00 -0700 | [diff] [blame] | 170 | IPackageManager mPm; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 171 | AlarmManager mAlarmManager; |
| 172 | ArrayList<Provider> mInstalledProviders = new ArrayList<Provider>(); |
| 173 | int mNextAppWidgetId = AppWidgetManager.INVALID_APPWIDGET_ID + 1; |
| 174 | final ArrayList<AppWidgetId> mAppWidgetIds = new ArrayList<AppWidgetId>(); |
| 175 | ArrayList<Host> mHosts = new ArrayList<Host>(); |
Michael Jurka | 61a5b01 | 2012-04-13 10:39:45 -0700 | [diff] [blame] | 176 | // set of package names |
| 177 | HashSet<String> mPackagesWithBindWidgetPermission = new HashSet<String>(); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 178 | boolean mSafeMode; |
| 179 | int mUserId; |
| 180 | boolean mStateLoaded; |
Adam Cohen | 311c79c | 2012-05-10 14:44:38 -0700 | [diff] [blame] | 181 | int mMaxWidgetBitmapMemory; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 182 | |
| 183 | // These are for debugging only -- widgets are going missing in some rare instances |
| 184 | ArrayList<Provider> mDeletedProviders = new ArrayList<Provider>(); |
| 185 | ArrayList<Host> mDeletedHosts = new ArrayList<Host>(); |
| 186 | |
| 187 | AppWidgetServiceImpl(Context context, int userId) { |
| 188 | mContext = context; |
Amith Yamasani | 483f3b0 | 2012-03-13 16:08:00 -0700 | [diff] [blame] | 189 | mPm = AppGlobals.getPackageManager(); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 190 | mAlarmManager = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE); |
| 191 | mUserId = userId; |
Adam Cohen | 311c79c | 2012-05-10 14:44:38 -0700 | [diff] [blame] | 192 | computeMaximumWidgetBitmapMemory(); |
| 193 | } |
| 194 | |
| 195 | void computeMaximumWidgetBitmapMemory() { |
| 196 | WindowManager wm = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE); |
Jeff Brown | a8b9def | 2012-07-23 14:22:49 -0700 | [diff] [blame] | 197 | Display display = wm.getDefaultDisplay(); |
| 198 | Point size = new Point(); |
| 199 | display.getRealSize(size); |
Winson Chung | e92aad4 | 2012-06-22 14:11:47 -0700 | [diff] [blame] | 200 | // Cap memory usage at 1.5 times the size of the display |
| 201 | // 1.5 * 4 bytes/pixel * w * h ==> 6 * w * h |
Jeff Brown | a8b9def | 2012-07-23 14:22:49 -0700 | [diff] [blame] | 202 | mMaxWidgetBitmapMemory = 6 * size.x * size.y; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 203 | } |
| 204 | |
| 205 | public void systemReady(boolean safeMode) { |
| 206 | mSafeMode = safeMode; |
| 207 | |
| 208 | synchronized (mAppWidgetIds) { |
| 209 | ensureStateLoadedLocked(); |
| 210 | } |
| 211 | } |
| 212 | |
Amith Yamasani | 8320de8 | 2012-10-05 16:10:38 -0700 | [diff] [blame] | 213 | private void log(String msg) { |
| 214 | Slog.i(TAG, "u=" + mUserId + ": " + msg); |
| 215 | } |
| 216 | |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 217 | void onConfigurationChanged() { |
Amith Yamasani | 8320de8 | 2012-10-05 16:10:38 -0700 | [diff] [blame] | 218 | if (DBG) log("Got onConfigurationChanged()"); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 219 | Locale revised = Locale.getDefault(); |
| 220 | if (revised == null || mLocale == null || !(revised.equals(mLocale))) { |
| 221 | mLocale = revised; |
| 222 | |
| 223 | synchronized (mAppWidgetIds) { |
| 224 | ensureStateLoadedLocked(); |
Winson Chung | a319505 | 2012-06-25 10:02:10 -0700 | [diff] [blame] | 225 | // Note: updateProvidersForPackageLocked() may remove providers, so we must copy the |
| 226 | // list of installed providers and skip providers that we don't need to update. |
| 227 | // Also note that remove the provider does not clear the Provider component data. |
| 228 | ArrayList<Provider> installedProviders = |
| 229 | new ArrayList<Provider>(mInstalledProviders); |
| 230 | HashSet<ComponentName> removedProviders = new HashSet<ComponentName>(); |
| 231 | int N = installedProviders.size(); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 232 | for (int i = N - 1; i >= 0; i--) { |
Winson Chung | a319505 | 2012-06-25 10:02:10 -0700 | [diff] [blame] | 233 | Provider p = installedProviders.get(i); |
| 234 | ComponentName cn = p.info.provider; |
| 235 | if (!removedProviders.contains(cn)) { |
| 236 | updateProvidersForPackageLocked(cn.getPackageName(), removedProviders); |
| 237 | } |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 238 | } |
| 239 | saveStateLocked(); |
| 240 | } |
| 241 | } |
| 242 | } |
| 243 | |
| 244 | void onBroadcastReceived(Intent intent) { |
Amith Yamasani | 8320de8 | 2012-10-05 16:10:38 -0700 | [diff] [blame] | 245 | if (DBG) log("onBroadcast " + intent); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 246 | final String action = intent.getAction(); |
| 247 | boolean added = false; |
| 248 | boolean changed = false; |
Winson Chung | 7fbd284 | 2012-06-13 10:35:51 -0700 | [diff] [blame] | 249 | boolean providersModified = false; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 250 | String pkgList[] = null; |
| 251 | if (Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE.equals(action)) { |
| 252 | pkgList = intent.getStringArrayExtra(Intent.EXTRA_CHANGED_PACKAGE_LIST); |
| 253 | added = true; |
| 254 | } else if (Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { |
| 255 | pkgList = intent.getStringArrayExtra(Intent.EXTRA_CHANGED_PACKAGE_LIST); |
| 256 | added = false; |
| 257 | } else { |
| 258 | Uri uri = intent.getData(); |
| 259 | if (uri == null) { |
| 260 | return; |
| 261 | } |
| 262 | String pkgName = uri.getSchemeSpecificPart(); |
| 263 | if (pkgName == null) { |
| 264 | return; |
| 265 | } |
| 266 | pkgList = new String[] { pkgName }; |
| 267 | added = Intent.ACTION_PACKAGE_ADDED.equals(action); |
| 268 | changed = Intent.ACTION_PACKAGE_CHANGED.equals(action); |
| 269 | } |
| 270 | if (pkgList == null || pkgList.length == 0) { |
| 271 | return; |
| 272 | } |
| 273 | if (added || changed) { |
| 274 | synchronized (mAppWidgetIds) { |
| 275 | ensureStateLoadedLocked(); |
| 276 | Bundle extras = intent.getExtras(); |
| 277 | if (changed |
| 278 | || (extras != null && extras.getBoolean(Intent.EXTRA_REPLACING, false))) { |
| 279 | for (String pkgName : pkgList) { |
| 280 | // The package was just upgraded |
Winson Chung | a319505 | 2012-06-25 10:02:10 -0700 | [diff] [blame] | 281 | providersModified |= updateProvidersForPackageLocked(pkgName, null); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 282 | } |
| 283 | } else { |
| 284 | // The package was just added |
| 285 | for (String pkgName : pkgList) { |
Winson Chung | 7fbd284 | 2012-06-13 10:35:51 -0700 | [diff] [blame] | 286 | providersModified |= addProvidersForPackageLocked(pkgName); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 287 | } |
| 288 | } |
| 289 | saveStateLocked(); |
| 290 | } |
| 291 | } else { |
| 292 | Bundle extras = intent.getExtras(); |
| 293 | if (extras != null && extras.getBoolean(Intent.EXTRA_REPLACING, false)) { |
| 294 | // The package is being updated. We'll receive a PACKAGE_ADDED shortly. |
| 295 | } else { |
| 296 | synchronized (mAppWidgetIds) { |
| 297 | ensureStateLoadedLocked(); |
| 298 | for (String pkgName : pkgList) { |
Winson Chung | 7fbd284 | 2012-06-13 10:35:51 -0700 | [diff] [blame] | 299 | providersModified |= removeProvidersForPackageLocked(pkgName); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 300 | saveStateLocked(); |
| 301 | } |
| 302 | } |
| 303 | } |
| 304 | } |
Winson Chung | 7fbd284 | 2012-06-13 10:35:51 -0700 | [diff] [blame] | 305 | |
| 306 | if (providersModified) { |
| 307 | // If the set of providers has been modified, notify each active AppWidgetHost |
| 308 | synchronized (mAppWidgetIds) { |
| 309 | ensureStateLoadedLocked(); |
| 310 | notifyHostsForProvidersChangedLocked(); |
| 311 | } |
| 312 | } |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 313 | } |
| 314 | |
| 315 | private void dumpProvider(Provider p, int index, PrintWriter pw) { |
| 316 | AppWidgetProviderInfo info = p.info; |
| 317 | pw.print(" ["); pw.print(index); pw.print("] provider "); |
| 318 | pw.print(info.provider.flattenToShortString()); |
| 319 | pw.println(':'); |
| 320 | pw.print(" min=("); pw.print(info.minWidth); |
| 321 | pw.print("x"); pw.print(info.minHeight); |
| 322 | pw.print(") minResize=("); pw.print(info.minResizeWidth); |
| 323 | pw.print("x"); pw.print(info.minResizeHeight); |
| 324 | pw.print(") updatePeriodMillis="); |
| 325 | pw.print(info.updatePeriodMillis); |
| 326 | pw.print(" resizeMode="); |
| 327 | pw.print(info.resizeMode); |
Adam Cohen | 0aa2d42 | 2012-09-07 17:37:26 -0700 | [diff] [blame] | 328 | pw.print(info.widgetCategory); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 329 | pw.print(" autoAdvanceViewId="); |
| 330 | pw.print(info.autoAdvanceViewId); |
| 331 | pw.print(" initialLayout=#"); |
| 332 | pw.print(Integer.toHexString(info.initialLayout)); |
| 333 | pw.print(" zombie="); pw.println(p.zombie); |
| 334 | } |
| 335 | |
| 336 | private void dumpHost(Host host, int index, PrintWriter pw) { |
| 337 | pw.print(" ["); pw.print(index); pw.print("] hostId="); |
| 338 | pw.print(host.hostId); pw.print(' '); |
| 339 | pw.print(host.packageName); pw.print('/'); |
| 340 | pw.print(host.uid); pw.println(':'); |
| 341 | pw.print(" callbacks="); pw.println(host.callbacks); |
| 342 | pw.print(" instances.size="); pw.print(host.instances.size()); |
| 343 | pw.print(" zombie="); pw.println(host.zombie); |
| 344 | } |
| 345 | |
| 346 | private void dumpAppWidgetId(AppWidgetId id, int index, PrintWriter pw) { |
| 347 | pw.print(" ["); pw.print(index); pw.print("] id="); |
| 348 | pw.println(id.appWidgetId); |
| 349 | pw.print(" hostId="); |
| 350 | pw.print(id.host.hostId); pw.print(' '); |
| 351 | pw.print(id.host.packageName); pw.print('/'); |
| 352 | pw.println(id.host.uid); |
| 353 | if (id.provider != null) { |
| 354 | pw.print(" provider="); |
| 355 | pw.println(id.provider.info.provider.flattenToShortString()); |
| 356 | } |
| 357 | if (id.host != null) { |
| 358 | pw.print(" host.callbacks="); pw.println(id.host.callbacks); |
| 359 | } |
| 360 | if (id.views != null) { |
| 361 | pw.print(" views="); pw.println(id.views); |
| 362 | } |
| 363 | } |
| 364 | |
| 365 | void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| 366 | if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) |
| 367 | != PackageManager.PERMISSION_GRANTED) { |
| 368 | pw.println("Permission Denial: can't dump from from pid=" |
| 369 | + Binder.getCallingPid() |
| 370 | + ", uid=" + Binder.getCallingUid()); |
| 371 | return; |
| 372 | } |
| 373 | |
| 374 | synchronized (mAppWidgetIds) { |
| 375 | int N = mInstalledProviders.size(); |
| 376 | pw.println("Providers:"); |
| 377 | for (int i=0; i<N; i++) { |
| 378 | dumpProvider(mInstalledProviders.get(i), i, pw); |
| 379 | } |
| 380 | |
| 381 | N = mAppWidgetIds.size(); |
| 382 | pw.println(" "); |
| 383 | pw.println("AppWidgetIds:"); |
| 384 | for (int i=0; i<N; i++) { |
| 385 | dumpAppWidgetId(mAppWidgetIds.get(i), i, pw); |
| 386 | } |
| 387 | |
| 388 | N = mHosts.size(); |
| 389 | pw.println(" "); |
| 390 | pw.println("Hosts:"); |
| 391 | for (int i=0; i<N; i++) { |
| 392 | dumpHost(mHosts.get(i), i, pw); |
| 393 | } |
| 394 | |
| 395 | N = mDeletedProviders.size(); |
| 396 | pw.println(" "); |
| 397 | pw.println("Deleted Providers:"); |
| 398 | for (int i=0; i<N; i++) { |
| 399 | dumpProvider(mDeletedProviders.get(i), i, pw); |
| 400 | } |
| 401 | |
| 402 | N = mDeletedHosts.size(); |
| 403 | pw.println(" "); |
| 404 | pw.println("Deleted Hosts:"); |
| 405 | for (int i=0; i<N; i++) { |
| 406 | dumpHost(mDeletedHosts.get(i), i, pw); |
| 407 | } |
| 408 | } |
| 409 | } |
| 410 | |
| 411 | private void ensureStateLoadedLocked() { |
| 412 | if (!mStateLoaded) { |
| 413 | loadAppWidgetList(); |
| 414 | loadStateLocked(); |
| 415 | mStateLoaded = true; |
| 416 | } |
| 417 | } |
| 418 | |
| 419 | public int allocateAppWidgetId(String packageName, int hostId) { |
Jim Miller | f229e4d | 2012-09-12 20:32:50 -0700 | [diff] [blame] | 420 | int callingUid = enforceSystemOrCallingUid(packageName); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 421 | synchronized (mAppWidgetIds) { |
| 422 | ensureStateLoadedLocked(); |
| 423 | int appWidgetId = mNextAppWidgetId++; |
| 424 | |
| 425 | Host host = lookupOrAddHostLocked(callingUid, packageName, hostId); |
| 426 | |
| 427 | AppWidgetId id = new AppWidgetId(); |
| 428 | id.appWidgetId = appWidgetId; |
| 429 | id.host = host; |
| 430 | |
| 431 | host.instances.add(id); |
| 432 | mAppWidgetIds.add(id); |
| 433 | |
| 434 | saveStateLocked(); |
Amith Yamasani | 8320de8 | 2012-10-05 16:10:38 -0700 | [diff] [blame] | 435 | if (DBG) log("Allocating AppWidgetId for " + packageName + " host=" + hostId |
| 436 | + " id=" + appWidgetId); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 437 | return appWidgetId; |
| 438 | } |
| 439 | } |
| 440 | |
| 441 | public void deleteAppWidgetId(int appWidgetId) { |
| 442 | synchronized (mAppWidgetIds) { |
| 443 | ensureStateLoadedLocked(); |
| 444 | AppWidgetId id = lookupAppWidgetIdLocked(appWidgetId); |
| 445 | if (id != null) { |
| 446 | deleteAppWidgetLocked(id); |
| 447 | saveStateLocked(); |
| 448 | } |
| 449 | } |
| 450 | } |
| 451 | |
| 452 | public void deleteHost(int hostId) { |
| 453 | synchronized (mAppWidgetIds) { |
| 454 | ensureStateLoadedLocked(); |
| 455 | int callingUid = Binder.getCallingUid(); |
| 456 | Host host = lookupHostLocked(callingUid, hostId); |
| 457 | if (host != null) { |
| 458 | deleteHostLocked(host); |
| 459 | saveStateLocked(); |
| 460 | } |
| 461 | } |
| 462 | } |
| 463 | |
| 464 | public void deleteAllHosts() { |
| 465 | synchronized (mAppWidgetIds) { |
| 466 | ensureStateLoadedLocked(); |
| 467 | int callingUid = Binder.getCallingUid(); |
| 468 | final int N = mHosts.size(); |
| 469 | boolean changed = false; |
| 470 | for (int i = N - 1; i >= 0; i--) { |
| 471 | Host host = mHosts.get(i); |
| 472 | if (host.uid == callingUid) { |
| 473 | deleteHostLocked(host); |
| 474 | changed = true; |
| 475 | } |
| 476 | } |
| 477 | if (changed) { |
| 478 | saveStateLocked(); |
| 479 | } |
| 480 | } |
| 481 | } |
| 482 | |
| 483 | void deleteHostLocked(Host host) { |
| 484 | final int N = host.instances.size(); |
| 485 | for (int i = N - 1; i >= 0; i--) { |
| 486 | AppWidgetId id = host.instances.get(i); |
| 487 | deleteAppWidgetLocked(id); |
| 488 | } |
| 489 | host.instances.clear(); |
| 490 | mHosts.remove(host); |
| 491 | mDeletedHosts.add(host); |
| 492 | // it's gone or going away, abruptly drop the callback connection |
| 493 | host.callbacks = null; |
| 494 | } |
| 495 | |
| 496 | void deleteAppWidgetLocked(AppWidgetId id) { |
| 497 | // We first unbind all services that are bound to this id |
| 498 | unbindAppWidgetRemoteViewsServicesLocked(id); |
| 499 | |
| 500 | Host host = id.host; |
| 501 | host.instances.remove(id); |
| 502 | pruneHostLocked(host); |
| 503 | |
| 504 | mAppWidgetIds.remove(id); |
| 505 | |
| 506 | Provider p = id.provider; |
| 507 | if (p != null) { |
| 508 | p.instances.remove(id); |
| 509 | if (!p.zombie) { |
| 510 | // send the broacast saying that this appWidgetId has been deleted |
| 511 | Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_DELETED); |
| 512 | intent.setComponent(p.info.provider); |
| 513 | intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, id.appWidgetId); |
Dianne Hackborn | 79af1dd | 2012-08-16 16:42:52 -0700 | [diff] [blame] | 514 | mContext.sendBroadcastAsUser(intent, new UserHandle(mUserId)); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 515 | if (p.instances.size() == 0) { |
| 516 | // cancel the future updates |
| 517 | cancelBroadcasts(p); |
| 518 | |
| 519 | // send the broacast saying that the provider is not in use any more |
| 520 | intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_DISABLED); |
| 521 | intent.setComponent(p.info.provider); |
Dianne Hackborn | 79af1dd | 2012-08-16 16:42:52 -0700 | [diff] [blame] | 522 | mContext.sendBroadcastAsUser(intent, new UserHandle(mUserId)); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 523 | } |
| 524 | } |
| 525 | } |
| 526 | } |
| 527 | |
| 528 | void cancelBroadcasts(Provider p) { |
Amith Yamasani | 8320de8 | 2012-10-05 16:10:38 -0700 | [diff] [blame] | 529 | if (DBG) log("cancelBroadcasts for " + p); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 530 | if (p.broadcast != null) { |
| 531 | mAlarmManager.cancel(p.broadcast); |
| 532 | long token = Binder.clearCallingIdentity(); |
| 533 | try { |
| 534 | p.broadcast.cancel(); |
| 535 | } finally { |
| 536 | Binder.restoreCallingIdentity(token); |
| 537 | } |
| 538 | p.broadcast = null; |
| 539 | } |
| 540 | } |
| 541 | |
Adam Cohen | 0aa2d42 | 2012-09-07 17:37:26 -0700 | [diff] [blame] | 542 | private void bindAppWidgetIdImpl(int appWidgetId, ComponentName provider, Bundle options) { |
Amith Yamasani | 8320de8 | 2012-10-05 16:10:38 -0700 | [diff] [blame] | 543 | if (DBG) log("bindAppWidgetIdImpl appwid=" + appWidgetId |
| 544 | + " provider=" + provider); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 545 | final long ident = Binder.clearCallingIdentity(); |
| 546 | try { |
| 547 | synchronized (mAppWidgetIds) { |
Adam Cohen | 3ff2d86 | 2012-09-26 14:07:57 -0700 | [diff] [blame] | 548 | options = cloneIfLocalBinder(options); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 549 | ensureStateLoadedLocked(); |
| 550 | AppWidgetId id = lookupAppWidgetIdLocked(appWidgetId); |
| 551 | if (id == null) { |
| 552 | throw new IllegalArgumentException("bad appWidgetId"); |
| 553 | } |
| 554 | if (id.provider != null) { |
| 555 | throw new IllegalArgumentException("appWidgetId " + appWidgetId |
| 556 | + " already bound to " + id.provider.info.provider); |
| 557 | } |
| 558 | Provider p = lookupProviderLocked(provider); |
| 559 | if (p == null) { |
| 560 | throw new IllegalArgumentException("not a appwidget provider: " + provider); |
| 561 | } |
| 562 | if (p.zombie) { |
| 563 | throw new IllegalArgumentException("can't bind to a 3rd party provider in" |
| 564 | + " safe mode: " + provider); |
| 565 | } |
| 566 | |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 567 | id.provider = p; |
Adam Cohen | 0aa2d42 | 2012-09-07 17:37:26 -0700 | [diff] [blame] | 568 | if (options == null) { |
| 569 | options = new Bundle(); |
| 570 | } |
| 571 | id.options = options; |
| 572 | |
| 573 | // We need to provide a default value for the widget category if it is not specified |
| 574 | if (!options.containsKey(AppWidgetManager.OPTION_APPWIDGET_HOST_CATEGORY)) { |
| 575 | options.putInt(AppWidgetManager.OPTION_APPWIDGET_HOST_CATEGORY, |
| 576 | AppWidgetProviderInfo.WIDGET_CATEGORY_HOME_SCREEN); |
| 577 | } |
| 578 | |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 579 | p.instances.add(id); |
| 580 | int instancesSize = p.instances.size(); |
| 581 | if (instancesSize == 1) { |
| 582 | // tell the provider that it's ready |
| 583 | sendEnableIntentLocked(p); |
| 584 | } |
| 585 | |
| 586 | // send an update now -- We need this update now, and just for this appWidgetId. |
| 587 | // It's less critical when the next one happens, so when we schedule the next one, |
| 588 | // we add updatePeriodMillis to its start time. That time will have some slop, |
| 589 | // but that's okay. |
| 590 | sendUpdateIntentLocked(p, new int[] { appWidgetId }); |
| 591 | |
| 592 | // schedule the future updates |
| 593 | registerForBroadcastsLocked(p, getAppWidgetIds(p)); |
| 594 | saveStateLocked(); |
| 595 | } |
| 596 | } finally { |
| 597 | Binder.restoreCallingIdentity(ident); |
| 598 | } |
| 599 | } |
| 600 | |
Adam Cohen | 0aa2d42 | 2012-09-07 17:37:26 -0700 | [diff] [blame] | 601 | public void bindAppWidgetId(int appWidgetId, ComponentName provider, Bundle options) { |
Michael Jurka | 67a871d | 2012-11-01 18:26:01 -0700 | [diff] [blame] | 602 | mContext.enforceCallingOrSelfPermission(android.Manifest.permission.BIND_APPWIDGET, |
Michael Jurka | 61a5b01 | 2012-04-13 10:39:45 -0700 | [diff] [blame] | 603 | "bindAppWidgetId appWidgetId=" + appWidgetId + " provider=" + provider); |
Adam Cohen | 0aa2d42 | 2012-09-07 17:37:26 -0700 | [diff] [blame] | 604 | bindAppWidgetIdImpl(appWidgetId, provider, options); |
Michael Jurka | 61a5b01 | 2012-04-13 10:39:45 -0700 | [diff] [blame] | 605 | } |
| 606 | |
| 607 | public boolean bindAppWidgetIdIfAllowed( |
Adam Cohen | 0aa2d42 | 2012-09-07 17:37:26 -0700 | [diff] [blame] | 608 | String packageName, int appWidgetId, ComponentName provider, Bundle options) { |
Michael Jurka | 61a5b01 | 2012-04-13 10:39:45 -0700 | [diff] [blame] | 609 | try { |
Michael Jurka | 67a871d | 2012-11-01 18:26:01 -0700 | [diff] [blame] | 610 | mContext.enforceCallingOrSelfPermission(android.Manifest.permission.BIND_APPWIDGET, null); |
Michael Jurka | 61a5b01 | 2012-04-13 10:39:45 -0700 | [diff] [blame] | 611 | } catch (SecurityException se) { |
| 612 | if (!callerHasBindAppWidgetPermission(packageName)) { |
| 613 | return false; |
| 614 | } |
| 615 | } |
Adam Cohen | 0aa2d42 | 2012-09-07 17:37:26 -0700 | [diff] [blame] | 616 | bindAppWidgetIdImpl(appWidgetId, provider, options); |
Michael Jurka | 61a5b01 | 2012-04-13 10:39:45 -0700 | [diff] [blame] | 617 | return true; |
| 618 | } |
| 619 | |
| 620 | private boolean callerHasBindAppWidgetPermission(String packageName) { |
| 621 | int callingUid = Binder.getCallingUid(); |
| 622 | try { |
Dianne Hackborn | f02b60a | 2012-08-16 10:48:27 -0700 | [diff] [blame] | 623 | if (!UserHandle.isSameApp(callingUid, getUidForPackage(packageName))) { |
Michael Jurka | 61a5b01 | 2012-04-13 10:39:45 -0700 | [diff] [blame] | 624 | return false; |
| 625 | } |
| 626 | } catch (Exception e) { |
| 627 | return false; |
| 628 | } |
| 629 | synchronized (mAppWidgetIds) { |
| 630 | ensureStateLoadedLocked(); |
| 631 | return mPackagesWithBindWidgetPermission.contains(packageName); |
| 632 | } |
| 633 | } |
| 634 | |
| 635 | public boolean hasBindAppWidgetPermission(String packageName) { |
| 636 | mContext.enforceCallingPermission( |
| 637 | android.Manifest.permission.MODIFY_APPWIDGET_BIND_PERMISSIONS, |
| 638 | "hasBindAppWidgetPermission packageName=" + packageName); |
| 639 | |
| 640 | synchronized (mAppWidgetIds) { |
| 641 | ensureStateLoadedLocked(); |
| 642 | return mPackagesWithBindWidgetPermission.contains(packageName); |
| 643 | } |
| 644 | } |
| 645 | |
| 646 | public void setBindAppWidgetPermission(String packageName, boolean permission) { |
| 647 | mContext.enforceCallingPermission( |
| 648 | android.Manifest.permission.MODIFY_APPWIDGET_BIND_PERMISSIONS, |
| 649 | "setBindAppWidgetPermission packageName=" + packageName); |
| 650 | |
| 651 | synchronized (mAppWidgetIds) { |
| 652 | ensureStateLoadedLocked(); |
| 653 | if (permission) { |
| 654 | mPackagesWithBindWidgetPermission.add(packageName); |
| 655 | } else { |
| 656 | mPackagesWithBindWidgetPermission.remove(packageName); |
| 657 | } |
| 658 | } |
| 659 | saveStateLocked(); |
| 660 | } |
| 661 | |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 662 | // Binds to a specific RemoteViewsService |
| 663 | public void bindRemoteViewsService(int appWidgetId, Intent intent, IBinder connection) { |
| 664 | synchronized (mAppWidgetIds) { |
| 665 | ensureStateLoadedLocked(); |
| 666 | AppWidgetId id = lookupAppWidgetIdLocked(appWidgetId); |
| 667 | if (id == null) { |
| 668 | throw new IllegalArgumentException("bad appWidgetId"); |
| 669 | } |
| 670 | final ComponentName componentName = intent.getComponent(); |
| 671 | try { |
Amith Yamasani | 98edc95 | 2012-09-25 14:09:27 -0700 | [diff] [blame] | 672 | final ServiceInfo si = AppGlobals.getPackageManager().getServiceInfo(componentName, |
| 673 | PackageManager.GET_PERMISSIONS, mUserId); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 674 | if (!android.Manifest.permission.BIND_REMOTEVIEWS.equals(si.permission)) { |
| 675 | throw new SecurityException("Selected service does not require " |
| 676 | + android.Manifest.permission.BIND_REMOTEVIEWS + ": " + componentName); |
| 677 | } |
Amith Yamasani | 98edc95 | 2012-09-25 14:09:27 -0700 | [diff] [blame] | 678 | } catch (RemoteException e) { |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 679 | throw new IllegalArgumentException("Unknown component " + componentName); |
| 680 | } |
| 681 | |
| 682 | // If there is already a connection made for this service intent, then disconnect from |
| 683 | // that first. (This does not allow multiple connections to the same service under |
| 684 | // the same key) |
| 685 | ServiceConnectionProxy conn = null; |
| 686 | FilterComparison fc = new FilterComparison(intent); |
| 687 | Pair<Integer, FilterComparison> key = Pair.create(appWidgetId, fc); |
| 688 | if (mBoundRemoteViewsServices.containsKey(key)) { |
| 689 | conn = (ServiceConnectionProxy) mBoundRemoteViewsServices.get(key); |
| 690 | conn.disconnect(); |
| 691 | mContext.unbindService(conn); |
| 692 | mBoundRemoteViewsServices.remove(key); |
| 693 | } |
| 694 | |
Dianne Hackborn | f02b60a | 2012-08-16 10:48:27 -0700 | [diff] [blame] | 695 | int userId = UserHandle.getUserId(id.provider.uid); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 696 | // Bind to the RemoteViewsService (which will trigger a callback to the |
| 697 | // RemoteViewsAdapter.onServiceConnected()) |
| 698 | final long token = Binder.clearCallingIdentity(); |
| 699 | try { |
| 700 | conn = new ServiceConnectionProxy(key, connection); |
Amith Yamasani | 37ce3a8 | 2012-02-06 12:04:42 -0800 | [diff] [blame] | 701 | mContext.bindService(intent, conn, Context.BIND_AUTO_CREATE, userId); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 702 | mBoundRemoteViewsServices.put(key, conn); |
| 703 | } finally { |
| 704 | Binder.restoreCallingIdentity(token); |
| 705 | } |
| 706 | |
| 707 | // Add it to the mapping of RemoteViewsService to appWidgetIds so that we can determine |
| 708 | // when we can call back to the RemoteViewsService later to destroy associated |
| 709 | // factories. |
| 710 | incrementAppWidgetServiceRefCount(appWidgetId, fc); |
| 711 | } |
| 712 | } |
| 713 | |
| 714 | // Unbinds from a specific RemoteViewsService |
| 715 | public void unbindRemoteViewsService(int appWidgetId, Intent intent) { |
| 716 | synchronized (mAppWidgetIds) { |
| 717 | ensureStateLoadedLocked(); |
| 718 | // Unbind from the RemoteViewsService (which will trigger a callback to the bound |
| 719 | // RemoteViewsAdapter) |
| 720 | Pair<Integer, FilterComparison> key = Pair.create(appWidgetId, new FilterComparison( |
| 721 | intent)); |
| 722 | if (mBoundRemoteViewsServices.containsKey(key)) { |
| 723 | // We don't need to use the appWidgetId until after we are sure there is something |
| 724 | // to unbind. Note that this may mask certain issues with apps calling unbind() |
| 725 | // more than necessary. |
| 726 | AppWidgetId id = lookupAppWidgetIdLocked(appWidgetId); |
| 727 | if (id == null) { |
| 728 | throw new IllegalArgumentException("bad appWidgetId"); |
| 729 | } |
| 730 | |
| 731 | ServiceConnectionProxy conn = (ServiceConnectionProxy) mBoundRemoteViewsServices |
| 732 | .get(key); |
| 733 | conn.disconnect(); |
| 734 | mContext.unbindService(conn); |
| 735 | mBoundRemoteViewsServices.remove(key); |
| 736 | } else { |
| 737 | Log.e("AppWidgetService", "Error (unbindRemoteViewsService): Connection not bound"); |
| 738 | } |
| 739 | } |
| 740 | } |
| 741 | |
| 742 | // Unbinds from a RemoteViewsService when we delete an app widget |
| 743 | private void unbindAppWidgetRemoteViewsServicesLocked(AppWidgetId id) { |
| 744 | int appWidgetId = id.appWidgetId; |
| 745 | // Unbind all connections to Services bound to this AppWidgetId |
| 746 | Iterator<Pair<Integer, Intent.FilterComparison>> it = mBoundRemoteViewsServices.keySet() |
| 747 | .iterator(); |
| 748 | while (it.hasNext()) { |
| 749 | final Pair<Integer, Intent.FilterComparison> key = it.next(); |
| 750 | if (key.first.intValue() == appWidgetId) { |
| 751 | final ServiceConnectionProxy conn = (ServiceConnectionProxy) mBoundRemoteViewsServices |
| 752 | .get(key); |
| 753 | conn.disconnect(); |
| 754 | mContext.unbindService(conn); |
| 755 | it.remove(); |
| 756 | } |
| 757 | } |
| 758 | |
| 759 | // Check if we need to destroy any services (if no other app widgets are |
| 760 | // referencing the same service) |
Amith Yamasani | 37ce3a8 | 2012-02-06 12:04:42 -0800 | [diff] [blame] | 761 | decrementAppWidgetServiceRefCount(id); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 762 | } |
| 763 | |
| 764 | // 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] | 765 | private void destroyRemoteViewsService(final Intent intent, AppWidgetId id) { |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 766 | final ServiceConnection conn = new ServiceConnection() { |
| 767 | @Override |
| 768 | public void onServiceConnected(ComponentName name, IBinder service) { |
| 769 | final IRemoteViewsFactory cb = IRemoteViewsFactory.Stub.asInterface(service); |
| 770 | try { |
| 771 | cb.onDestroy(intent); |
| 772 | } catch (RemoteException e) { |
| 773 | e.printStackTrace(); |
| 774 | } catch (RuntimeException e) { |
| 775 | e.printStackTrace(); |
| 776 | } |
| 777 | mContext.unbindService(this); |
| 778 | } |
| 779 | |
| 780 | @Override |
| 781 | public void onServiceDisconnected(android.content.ComponentName name) { |
| 782 | // Do nothing |
| 783 | } |
| 784 | }; |
| 785 | |
Dianne Hackborn | f02b60a | 2012-08-16 10:48:27 -0700 | [diff] [blame] | 786 | int userId = UserHandle.getUserId(id.provider.uid); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 787 | // Bind to the service and remove the static intent->factory mapping in the |
| 788 | // RemoteViewsService. |
| 789 | final long token = Binder.clearCallingIdentity(); |
| 790 | try { |
Amith Yamasani | 37ce3a8 | 2012-02-06 12:04:42 -0800 | [diff] [blame] | 791 | mContext.bindService(intent, conn, Context.BIND_AUTO_CREATE, userId); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 792 | } finally { |
| 793 | Binder.restoreCallingIdentity(token); |
| 794 | } |
| 795 | } |
| 796 | |
| 797 | // Adds to the ref-count for a given RemoteViewsService intent |
| 798 | private void incrementAppWidgetServiceRefCount(int appWidgetId, FilterComparison fc) { |
| 799 | HashSet<Integer> appWidgetIds = null; |
| 800 | if (mRemoteViewsServicesAppWidgets.containsKey(fc)) { |
| 801 | appWidgetIds = mRemoteViewsServicesAppWidgets.get(fc); |
| 802 | } else { |
| 803 | appWidgetIds = new HashSet<Integer>(); |
| 804 | mRemoteViewsServicesAppWidgets.put(fc, appWidgetIds); |
| 805 | } |
| 806 | appWidgetIds.add(appWidgetId); |
| 807 | } |
| 808 | |
| 809 | // Subtracts from the ref-count for a given RemoteViewsService intent, prompting a delete if |
| 810 | // the ref-count reaches zero. |
Amith Yamasani | 37ce3a8 | 2012-02-06 12:04:42 -0800 | [diff] [blame] | 811 | private void decrementAppWidgetServiceRefCount(AppWidgetId id) { |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 812 | Iterator<FilterComparison> it = mRemoteViewsServicesAppWidgets.keySet().iterator(); |
| 813 | while (it.hasNext()) { |
| 814 | final FilterComparison key = it.next(); |
| 815 | final HashSet<Integer> ids = mRemoteViewsServicesAppWidgets.get(key); |
Amith Yamasani | 37ce3a8 | 2012-02-06 12:04:42 -0800 | [diff] [blame] | 816 | if (ids.remove(id.appWidgetId)) { |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 817 | // If we have removed the last app widget referencing this service, then we |
| 818 | // should destroy it and remove it from this set |
| 819 | if (ids.isEmpty()) { |
Amith Yamasani | 37ce3a8 | 2012-02-06 12:04:42 -0800 | [diff] [blame] | 820 | destroyRemoteViewsService(key.getIntent(), id); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 821 | it.remove(); |
| 822 | } |
| 823 | } |
| 824 | } |
| 825 | } |
| 826 | |
| 827 | public AppWidgetProviderInfo getAppWidgetInfo(int appWidgetId) { |
| 828 | synchronized (mAppWidgetIds) { |
| 829 | ensureStateLoadedLocked(); |
| 830 | AppWidgetId id = lookupAppWidgetIdLocked(appWidgetId); |
| 831 | if (id != null && id.provider != null && !id.provider.zombie) { |
Adam Cohen | 3ff2d86 | 2012-09-26 14:07:57 -0700 | [diff] [blame] | 832 | return cloneIfLocalBinder(id.provider.info); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 833 | } |
| 834 | return null; |
| 835 | } |
| 836 | } |
| 837 | |
| 838 | public RemoteViews getAppWidgetViews(int appWidgetId) { |
Amith Yamasani | 8320de8 | 2012-10-05 16:10:38 -0700 | [diff] [blame] | 839 | if (DBG) log("getAppWidgetViews id=" + appWidgetId); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 840 | synchronized (mAppWidgetIds) { |
| 841 | ensureStateLoadedLocked(); |
| 842 | AppWidgetId id = lookupAppWidgetIdLocked(appWidgetId); |
| 843 | if (id != null) { |
Adam Cohen | 3ff2d86 | 2012-09-26 14:07:57 -0700 | [diff] [blame] | 844 | return cloneIfLocalBinder(id.views); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 845 | } |
Amith Yamasani | 8320de8 | 2012-10-05 16:10:38 -0700 | [diff] [blame] | 846 | if (DBG) log(" couldn't find appwidgetid"); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 847 | return null; |
| 848 | } |
| 849 | } |
| 850 | |
| 851 | public List<AppWidgetProviderInfo> getInstalledProviders() { |
| 852 | synchronized (mAppWidgetIds) { |
| 853 | ensureStateLoadedLocked(); |
| 854 | final int N = mInstalledProviders.size(); |
| 855 | ArrayList<AppWidgetProviderInfo> result = new ArrayList<AppWidgetProviderInfo>(N); |
| 856 | for (int i = 0; i < N; i++) { |
| 857 | Provider p = mInstalledProviders.get(i); |
| 858 | if (!p.zombie) { |
Adam Cohen | 3ff2d86 | 2012-09-26 14:07:57 -0700 | [diff] [blame] | 859 | result.add(cloneIfLocalBinder(p.info)); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 860 | } |
| 861 | } |
| 862 | return result; |
| 863 | } |
| 864 | } |
| 865 | |
| 866 | public void updateAppWidgetIds(int[] appWidgetIds, RemoteViews views) { |
| 867 | if (appWidgetIds == null) { |
| 868 | return; |
| 869 | } |
Amith Yamasani | 8320de8 | 2012-10-05 16:10:38 -0700 | [diff] [blame] | 870 | if (DBG) log("updateAppWidgetIds views: " + views); |
Adam Cohen | f08a8b7 | 2012-07-16 12:02:10 -0700 | [diff] [blame] | 871 | int bitmapMemoryUsage = 0; |
| 872 | if (views != null) { |
| 873 | bitmapMemoryUsage = views.estimateMemoryUsage(); |
| 874 | } |
Adam Cohen | 311c79c | 2012-05-10 14:44:38 -0700 | [diff] [blame] | 875 | if (bitmapMemoryUsage > mMaxWidgetBitmapMemory) { |
| 876 | throw new IllegalArgumentException("RemoteViews for widget update exceeds maximum" + |
| 877 | " bitmap memory usage (used: " + bitmapMemoryUsage + ", max: " + |
| 878 | mMaxWidgetBitmapMemory + ") The total memory cannot exceed that required to" + |
| 879 | " fill the device's screen once."); |
| 880 | } |
| 881 | |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 882 | if (appWidgetIds.length == 0) { |
| 883 | return; |
| 884 | } |
| 885 | final int N = appWidgetIds.length; |
| 886 | |
| 887 | synchronized (mAppWidgetIds) { |
| 888 | ensureStateLoadedLocked(); |
| 889 | for (int i = 0; i < N; i++) { |
| 890 | AppWidgetId id = lookupAppWidgetIdLocked(appWidgetIds[i]); |
| 891 | updateAppWidgetInstanceLocked(id, views); |
| 892 | } |
| 893 | } |
| 894 | } |
| 895 | |
Adam Cohen | d2097eb | 2012-05-01 18:10:28 -0700 | [diff] [blame] | 896 | public void updateAppWidgetOptions(int appWidgetId, Bundle options) { |
Adam Cohen | e8724c8 | 2012-04-19 17:11:40 -0700 | [diff] [blame] | 897 | synchronized (mAppWidgetIds) { |
Adam Cohen | 3ff2d86 | 2012-09-26 14:07:57 -0700 | [diff] [blame] | 898 | options = cloneIfLocalBinder(options); |
Adam Cohen | e8724c8 | 2012-04-19 17:11:40 -0700 | [diff] [blame] | 899 | ensureStateLoadedLocked(); |
| 900 | AppWidgetId id = lookupAppWidgetIdLocked(appWidgetId); |
| 901 | |
| 902 | if (id == null) { |
| 903 | return; |
| 904 | } |
Adam Cohen | 0aa2d42 | 2012-09-07 17:37:26 -0700 | [diff] [blame] | 905 | |
Adam Cohen | e8724c8 | 2012-04-19 17:11:40 -0700 | [diff] [blame] | 906 | Provider p = id.provider; |
Adam Cohen | 0aa2d42 | 2012-09-07 17:37:26 -0700 | [diff] [blame] | 907 | // Merge the options |
| 908 | id.options.putAll(options); |
Adam Cohen | e8724c8 | 2012-04-19 17:11:40 -0700 | [diff] [blame] | 909 | |
| 910 | // send the broacast saying that this appWidgetId has been deleted |
Adam Cohen | d2097eb | 2012-05-01 18:10:28 -0700 | [diff] [blame] | 911 | Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_OPTIONS_CHANGED); |
Adam Cohen | e8724c8 | 2012-04-19 17:11:40 -0700 | [diff] [blame] | 912 | intent.setComponent(p.info.provider); |
| 913 | intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, id.appWidgetId); |
Adam Cohen | 0aa2d42 | 2012-09-07 17:37:26 -0700 | [diff] [blame] | 914 | intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_OPTIONS, id.options); |
Dianne Hackborn | 79af1dd | 2012-08-16 16:42:52 -0700 | [diff] [blame] | 915 | mContext.sendBroadcastAsUser(intent, new UserHandle(mUserId)); |
Adam Cohen | 0aa2d42 | 2012-09-07 17:37:26 -0700 | [diff] [blame] | 916 | saveStateLocked(); |
Adam Cohen | e8724c8 | 2012-04-19 17:11:40 -0700 | [diff] [blame] | 917 | } |
| 918 | } |
| 919 | |
Adam Cohen | d2097eb | 2012-05-01 18:10:28 -0700 | [diff] [blame] | 920 | public Bundle getAppWidgetOptions(int appWidgetId) { |
Adam Cohen | e8724c8 | 2012-04-19 17:11:40 -0700 | [diff] [blame] | 921 | synchronized (mAppWidgetIds) { |
| 922 | ensureStateLoadedLocked(); |
| 923 | AppWidgetId id = lookupAppWidgetIdLocked(appWidgetId); |
Adam Cohen | d2097eb | 2012-05-01 18:10:28 -0700 | [diff] [blame] | 924 | if (id != null && id.options != null) { |
Adam Cohen | 3ff2d86 | 2012-09-26 14:07:57 -0700 | [diff] [blame] | 925 | return cloneIfLocalBinder(id.options); |
Adam Cohen | e8724c8 | 2012-04-19 17:11:40 -0700 | [diff] [blame] | 926 | } else { |
| 927 | return Bundle.EMPTY; |
| 928 | } |
| 929 | } |
| 930 | } |
| 931 | |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 932 | public void partiallyUpdateAppWidgetIds(int[] appWidgetIds, RemoteViews views) { |
| 933 | if (appWidgetIds == null) { |
| 934 | return; |
| 935 | } |
| 936 | if (appWidgetIds.length == 0) { |
| 937 | return; |
| 938 | } |
| 939 | final int N = appWidgetIds.length; |
| 940 | |
| 941 | synchronized (mAppWidgetIds) { |
| 942 | ensureStateLoadedLocked(); |
| 943 | for (int i = 0; i < N; i++) { |
| 944 | AppWidgetId id = lookupAppWidgetIdLocked(appWidgetIds[i]); |
Winson Chung | 6611988 | 2012-10-11 14:26:25 -0700 | [diff] [blame] | 945 | if (id.views != null) { |
| 946 | // Only trigger a partial update for a widget if it has received a full update |
| 947 | updateAppWidgetInstanceLocked(id, views, true); |
| 948 | } |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 949 | } |
| 950 | } |
| 951 | } |
| 952 | |
| 953 | public void notifyAppWidgetViewDataChanged(int[] appWidgetIds, int viewId) { |
| 954 | if (appWidgetIds == null) { |
| 955 | return; |
| 956 | } |
| 957 | if (appWidgetIds.length == 0) { |
| 958 | return; |
| 959 | } |
| 960 | final int N = appWidgetIds.length; |
| 961 | |
| 962 | synchronized (mAppWidgetIds) { |
| 963 | ensureStateLoadedLocked(); |
| 964 | for (int i = 0; i < N; i++) { |
| 965 | AppWidgetId id = lookupAppWidgetIdLocked(appWidgetIds[i]); |
| 966 | notifyAppWidgetViewDataChangedInstanceLocked(id, viewId); |
| 967 | } |
| 968 | } |
| 969 | } |
| 970 | |
| 971 | public void updateAppWidgetProvider(ComponentName provider, RemoteViews views) { |
| 972 | synchronized (mAppWidgetIds) { |
| 973 | ensureStateLoadedLocked(); |
| 974 | Provider p = lookupProviderLocked(provider); |
| 975 | if (p == null) { |
| 976 | Slog.w(TAG, "updateAppWidgetProvider: provider doesn't exist: " + provider); |
| 977 | return; |
| 978 | } |
| 979 | ArrayList<AppWidgetId> instances = p.instances; |
| 980 | final int callingUid = Binder.getCallingUid(); |
| 981 | final int N = instances.size(); |
| 982 | for (int i = 0; i < N; i++) { |
| 983 | AppWidgetId id = instances.get(i); |
| 984 | if (canAccessAppWidgetId(id, callingUid)) { |
| 985 | updateAppWidgetInstanceLocked(id, views); |
| 986 | } |
| 987 | } |
| 988 | } |
| 989 | } |
| 990 | |
| 991 | void updateAppWidgetInstanceLocked(AppWidgetId id, RemoteViews views) { |
| 992 | updateAppWidgetInstanceLocked(id, views, false); |
| 993 | } |
| 994 | |
| 995 | void updateAppWidgetInstanceLocked(AppWidgetId id, RemoteViews views, boolean isPartialUpdate) { |
| 996 | // allow for stale appWidgetIds and other badness |
| 997 | // lookup also checks that the calling process can access the appWidgetId |
| 998 | // drop unbound appWidgetIds (shouldn't be possible under normal circumstances) |
| 999 | if (id != null && id.provider != null && !id.provider.zombie && !id.host.zombie) { |
| 1000 | |
Winson Chung | 6611988 | 2012-10-11 14:26:25 -0700 | [diff] [blame] | 1001 | if (!isPartialUpdate) { |
Adam Cohen | fbe44b7 | 2012-09-19 20:36:23 -0700 | [diff] [blame] | 1002 | // For a full update we replace the RemoteViews completely. |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1003 | id.views = views; |
Adam Cohen | fbe44b7 | 2012-09-19 20:36:23 -0700 | [diff] [blame] | 1004 | } else { |
| 1005 | // For a partial update, we merge the new RemoteViews with the old. |
| 1006 | id.views.mergeRemoteViews(views); |
| 1007 | } |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1008 | |
| 1009 | // is anyone listening? |
| 1010 | if (id.host.callbacks != null) { |
| 1011 | try { |
| 1012 | // the lock is held, but this is a oneway call |
| 1013 | id.host.callbacks.updateAppWidget(id.appWidgetId, views); |
| 1014 | } catch (RemoteException e) { |
| 1015 | // It failed; remove the callback. No need to prune because |
| 1016 | // we know that this host is still referenced by this instance. |
| 1017 | id.host.callbacks = null; |
| 1018 | } |
| 1019 | } |
| 1020 | } |
| 1021 | } |
| 1022 | |
| 1023 | void notifyAppWidgetViewDataChangedInstanceLocked(AppWidgetId id, int viewId) { |
| 1024 | // allow for stale appWidgetIds and other badness |
| 1025 | // lookup also checks that the calling process can access the appWidgetId |
| 1026 | // drop unbound appWidgetIds (shouldn't be possible under normal circumstances) |
| 1027 | if (id != null && id.provider != null && !id.provider.zombie && !id.host.zombie) { |
| 1028 | // is anyone listening? |
| 1029 | if (id.host.callbacks != null) { |
| 1030 | try { |
| 1031 | // the lock is held, but this is a oneway call |
| 1032 | id.host.callbacks.viewDataChanged(id.appWidgetId, viewId); |
| 1033 | } catch (RemoteException e) { |
| 1034 | // It failed; remove the callback. No need to prune because |
| 1035 | // we know that this host is still referenced by this instance. |
| 1036 | id.host.callbacks = null; |
| 1037 | } |
| 1038 | } |
| 1039 | |
| 1040 | // If the host is unavailable, then we call the associated |
| 1041 | // RemoteViewsFactory.onDataSetChanged() directly |
| 1042 | if (id.host.callbacks == null) { |
| 1043 | Set<FilterComparison> keys = mRemoteViewsServicesAppWidgets.keySet(); |
| 1044 | for (FilterComparison key : keys) { |
| 1045 | if (mRemoteViewsServicesAppWidgets.get(key).contains(id.appWidgetId)) { |
| 1046 | Intent intent = key.getIntent(); |
| 1047 | |
| 1048 | final ServiceConnection conn = new ServiceConnection() { |
| 1049 | @Override |
| 1050 | public void onServiceConnected(ComponentName name, IBinder service) { |
| 1051 | IRemoteViewsFactory cb = IRemoteViewsFactory.Stub |
| 1052 | .asInterface(service); |
| 1053 | try { |
| 1054 | cb.onDataSetChangedAsync(); |
| 1055 | } catch (RemoteException e) { |
| 1056 | e.printStackTrace(); |
| 1057 | } catch (RuntimeException e) { |
| 1058 | e.printStackTrace(); |
| 1059 | } |
| 1060 | mContext.unbindService(this); |
| 1061 | } |
| 1062 | |
| 1063 | @Override |
| 1064 | public void onServiceDisconnected(android.content.ComponentName name) { |
| 1065 | // Do nothing |
| 1066 | } |
| 1067 | }; |
| 1068 | |
Dianne Hackborn | f02b60a | 2012-08-16 10:48:27 -0700 | [diff] [blame] | 1069 | int userId = UserHandle.getUserId(id.provider.uid); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1070 | // Bind to the service and call onDataSetChanged() |
| 1071 | final long token = Binder.clearCallingIdentity(); |
| 1072 | try { |
Amith Yamasani | 37ce3a8 | 2012-02-06 12:04:42 -0800 | [diff] [blame] | 1073 | mContext.bindService(intent, conn, Context.BIND_AUTO_CREATE, userId); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1074 | } finally { |
| 1075 | Binder.restoreCallingIdentity(token); |
| 1076 | } |
| 1077 | } |
| 1078 | } |
| 1079 | } |
| 1080 | } |
| 1081 | } |
| 1082 | |
Adam Cohen | 3ff2d86 | 2012-09-26 14:07:57 -0700 | [diff] [blame] | 1083 | private boolean isLocalBinder() { |
| 1084 | return Process.myPid() == Binder.getCallingPid(); |
| 1085 | } |
| 1086 | |
| 1087 | private RemoteViews cloneIfLocalBinder(RemoteViews rv) { |
| 1088 | if (isLocalBinder() && rv != null) { |
| 1089 | return rv.clone(); |
| 1090 | } |
| 1091 | return rv; |
| 1092 | } |
| 1093 | |
| 1094 | private AppWidgetProviderInfo cloneIfLocalBinder(AppWidgetProviderInfo info) { |
| 1095 | if (isLocalBinder() && info != null) { |
| 1096 | return info.clone(); |
| 1097 | } |
| 1098 | return info; |
| 1099 | } |
| 1100 | |
| 1101 | private Bundle cloneIfLocalBinder(Bundle bundle) { |
| 1102 | // Note: this is only a shallow copy. For now this will be fine, but it could be problematic |
| 1103 | // if we start adding objects to the options. Further, it would only be an issue if keyguard |
| 1104 | // used such options. |
| 1105 | if (isLocalBinder() && bundle != null) { |
| 1106 | return (Bundle) bundle.clone(); |
| 1107 | } |
| 1108 | return bundle; |
| 1109 | } |
| 1110 | |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1111 | public int[] startListening(IAppWidgetHost callbacks, String packageName, int hostId, |
| 1112 | List<RemoteViews> updatedViews) { |
| 1113 | int callingUid = enforceCallingUid(packageName); |
| 1114 | synchronized (mAppWidgetIds) { |
| 1115 | ensureStateLoadedLocked(); |
| 1116 | Host host = lookupOrAddHostLocked(callingUid, packageName, hostId); |
| 1117 | host.callbacks = callbacks; |
| 1118 | |
| 1119 | updatedViews.clear(); |
| 1120 | |
| 1121 | ArrayList<AppWidgetId> instances = host.instances; |
| 1122 | int N = instances.size(); |
| 1123 | int[] updatedIds = new int[N]; |
| 1124 | for (int i = 0; i < N; i++) { |
| 1125 | AppWidgetId id = instances.get(i); |
| 1126 | updatedIds[i] = id.appWidgetId; |
Adam Cohen | 3ff2d86 | 2012-09-26 14:07:57 -0700 | [diff] [blame] | 1127 | updatedViews.add(cloneIfLocalBinder(id.views)); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1128 | } |
| 1129 | return updatedIds; |
| 1130 | } |
| 1131 | } |
| 1132 | |
| 1133 | public void stopListening(int hostId) { |
| 1134 | synchronized (mAppWidgetIds) { |
| 1135 | ensureStateLoadedLocked(); |
| 1136 | Host host = lookupHostLocked(Binder.getCallingUid(), hostId); |
| 1137 | if (host != null) { |
| 1138 | host.callbacks = null; |
| 1139 | pruneHostLocked(host); |
| 1140 | } |
| 1141 | } |
| 1142 | } |
| 1143 | |
| 1144 | boolean canAccessAppWidgetId(AppWidgetId id, int callingUid) { |
| 1145 | if (id.host.uid == callingUid) { |
| 1146 | // Apps hosting the AppWidget have access to it. |
| 1147 | return true; |
| 1148 | } |
| 1149 | if (id.provider != null && id.provider.uid == callingUid) { |
| 1150 | // Apps providing the AppWidget have access to it (if the appWidgetId has been bound) |
| 1151 | return true; |
| 1152 | } |
| 1153 | if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.BIND_APPWIDGET) == PackageManager.PERMISSION_GRANTED) { |
| 1154 | // Apps that can bind have access to all appWidgetIds. |
| 1155 | return true; |
| 1156 | } |
| 1157 | // Nobody else can access it. |
| 1158 | return false; |
| 1159 | } |
| 1160 | |
| 1161 | AppWidgetId lookupAppWidgetIdLocked(int appWidgetId) { |
| 1162 | int callingUid = Binder.getCallingUid(); |
| 1163 | final int N = mAppWidgetIds.size(); |
| 1164 | for (int i = 0; i < N; i++) { |
| 1165 | AppWidgetId id = mAppWidgetIds.get(i); |
| 1166 | if (id.appWidgetId == appWidgetId && canAccessAppWidgetId(id, callingUid)) { |
| 1167 | return id; |
| 1168 | } |
| 1169 | } |
| 1170 | return null; |
| 1171 | } |
| 1172 | |
| 1173 | Provider lookupProviderLocked(ComponentName provider) { |
| 1174 | final int N = mInstalledProviders.size(); |
| 1175 | for (int i = 0; i < N; i++) { |
| 1176 | Provider p = mInstalledProviders.get(i); |
| 1177 | if (p.info.provider.equals(provider)) { |
| 1178 | return p; |
| 1179 | } |
| 1180 | } |
| 1181 | return null; |
| 1182 | } |
| 1183 | |
| 1184 | Host lookupHostLocked(int uid, int hostId) { |
| 1185 | final int N = mHosts.size(); |
| 1186 | for (int i = 0; i < N; i++) { |
| 1187 | Host h = mHosts.get(i); |
| 1188 | if (h.uid == uid && h.hostId == hostId) { |
| 1189 | return h; |
| 1190 | } |
| 1191 | } |
| 1192 | return null; |
| 1193 | } |
| 1194 | |
| 1195 | Host lookupOrAddHostLocked(int uid, String packageName, int hostId) { |
| 1196 | final int N = mHosts.size(); |
| 1197 | for (int i = 0; i < N; i++) { |
| 1198 | Host h = mHosts.get(i); |
| 1199 | if (h.hostId == hostId && h.packageName.equals(packageName)) { |
| 1200 | return h; |
| 1201 | } |
| 1202 | } |
| 1203 | Host host = new Host(); |
| 1204 | host.packageName = packageName; |
| 1205 | host.uid = uid; |
| 1206 | host.hostId = hostId; |
| 1207 | mHosts.add(host); |
| 1208 | return host; |
| 1209 | } |
| 1210 | |
| 1211 | void pruneHostLocked(Host host) { |
| 1212 | if (host.instances.size() == 0 && host.callbacks == null) { |
| 1213 | mHosts.remove(host); |
| 1214 | } |
| 1215 | } |
| 1216 | |
| 1217 | void loadAppWidgetList() { |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1218 | Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE); |
Amith Yamasani | 483f3b0 | 2012-03-13 16:08:00 -0700 | [diff] [blame] | 1219 | try { |
| 1220 | List<ResolveInfo> broadcastReceivers = mPm.queryIntentReceivers(intent, |
| 1221 | intent.resolveTypeIfNeeded(mContext.getContentResolver()), |
| 1222 | PackageManager.GET_META_DATA, mUserId); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1223 | |
Amith Yamasani | 483f3b0 | 2012-03-13 16:08:00 -0700 | [diff] [blame] | 1224 | final int N = broadcastReceivers == null ? 0 : broadcastReceivers.size(); |
| 1225 | for (int i = 0; i < N; i++) { |
| 1226 | ResolveInfo ri = broadcastReceivers.get(i); |
| 1227 | addProviderLocked(ri); |
| 1228 | } |
| 1229 | } catch (RemoteException re) { |
| 1230 | // Shouldn't happen, local call |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1231 | } |
| 1232 | } |
| 1233 | |
| 1234 | boolean addProviderLocked(ResolveInfo ri) { |
| 1235 | if ((ri.activityInfo.applicationInfo.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0) { |
| 1236 | return false; |
| 1237 | } |
| 1238 | if (!ri.activityInfo.isEnabled()) { |
| 1239 | return false; |
| 1240 | } |
| 1241 | Provider p = parseProviderInfoXml(new ComponentName(ri.activityInfo.packageName, |
| 1242 | ri.activityInfo.name), ri); |
| 1243 | if (p != null) { |
| 1244 | mInstalledProviders.add(p); |
| 1245 | return true; |
| 1246 | } else { |
| 1247 | return false; |
| 1248 | } |
| 1249 | } |
| 1250 | |
| 1251 | void removeProviderLocked(int index, Provider p) { |
| 1252 | int N = p.instances.size(); |
| 1253 | for (int i = 0; i < N; i++) { |
| 1254 | AppWidgetId id = p.instances.get(i); |
| 1255 | // Call back with empty RemoteViews |
| 1256 | updateAppWidgetInstanceLocked(id, null); |
| 1257 | // Stop telling the host about updates for this from now on |
| 1258 | cancelBroadcasts(p); |
| 1259 | // clear out references to this appWidgetId |
| 1260 | id.host.instances.remove(id); |
| 1261 | mAppWidgetIds.remove(id); |
| 1262 | id.provider = null; |
| 1263 | pruneHostLocked(id.host); |
| 1264 | id.host = null; |
| 1265 | } |
| 1266 | p.instances.clear(); |
| 1267 | mInstalledProviders.remove(index); |
| 1268 | mDeletedProviders.add(p); |
| 1269 | // no need to send the DISABLE broadcast, since the receiver is gone anyway |
| 1270 | cancelBroadcasts(p); |
| 1271 | } |
| 1272 | |
| 1273 | void sendEnableIntentLocked(Provider p) { |
| 1274 | Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_ENABLED); |
| 1275 | intent.setComponent(p.info.provider); |
Dianne Hackborn | 79af1dd | 2012-08-16 16:42:52 -0700 | [diff] [blame] | 1276 | mContext.sendBroadcastAsUser(intent, new UserHandle(mUserId)); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1277 | } |
| 1278 | |
| 1279 | void sendUpdateIntentLocked(Provider p, int[] appWidgetIds) { |
| 1280 | if (appWidgetIds != null && appWidgetIds.length > 0) { |
| 1281 | Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE); |
| 1282 | intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, appWidgetIds); |
| 1283 | intent.setComponent(p.info.provider); |
Dianne Hackborn | 79af1dd | 2012-08-16 16:42:52 -0700 | [diff] [blame] | 1284 | mContext.sendBroadcastAsUser(intent, new UserHandle(mUserId)); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1285 | } |
| 1286 | } |
| 1287 | |
| 1288 | void registerForBroadcastsLocked(Provider p, int[] appWidgetIds) { |
| 1289 | if (p.info.updatePeriodMillis > 0) { |
| 1290 | // if this is the first instance, set the alarm. otherwise, |
| 1291 | // rely on the fact that we've already set it and that |
| 1292 | // PendingIntent.getBroadcast will update the extras. |
| 1293 | boolean alreadyRegistered = p.broadcast != null; |
| 1294 | Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE); |
| 1295 | intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, appWidgetIds); |
| 1296 | intent.setComponent(p.info.provider); |
| 1297 | long token = Binder.clearCallingIdentity(); |
| 1298 | try { |
Amith Yamasani | 8320de8 | 2012-10-05 16:10:38 -0700 | [diff] [blame] | 1299 | p.broadcast = PendingIntent.getBroadcastAsUser(mContext, 1, intent, |
| 1300 | PendingIntent.FLAG_UPDATE_CURRENT, new UserHandle(mUserId)); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1301 | } finally { |
| 1302 | Binder.restoreCallingIdentity(token); |
| 1303 | } |
| 1304 | if (!alreadyRegistered) { |
| 1305 | long period = p.info.updatePeriodMillis; |
| 1306 | if (period < MIN_UPDATE_PERIOD) { |
| 1307 | period = MIN_UPDATE_PERIOD; |
| 1308 | } |
| 1309 | mAlarmManager.setInexactRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP, SystemClock |
| 1310 | .elapsedRealtime() |
| 1311 | + period, period, p.broadcast); |
| 1312 | } |
| 1313 | } |
| 1314 | } |
| 1315 | |
| 1316 | static int[] getAppWidgetIds(Provider p) { |
| 1317 | int instancesSize = p.instances.size(); |
| 1318 | int appWidgetIds[] = new int[instancesSize]; |
| 1319 | for (int i = 0; i < instancesSize; i++) { |
| 1320 | appWidgetIds[i] = p.instances.get(i).appWidgetId; |
| 1321 | } |
| 1322 | return appWidgetIds; |
| 1323 | } |
| 1324 | |
| 1325 | public int[] getAppWidgetIds(ComponentName provider) { |
| 1326 | synchronized (mAppWidgetIds) { |
| 1327 | ensureStateLoadedLocked(); |
| 1328 | Provider p = lookupProviderLocked(provider); |
| 1329 | if (p != null && Binder.getCallingUid() == p.uid) { |
| 1330 | return getAppWidgetIds(p); |
| 1331 | } else { |
| 1332 | return new int[0]; |
| 1333 | } |
| 1334 | } |
| 1335 | } |
| 1336 | |
| 1337 | private Provider parseProviderInfoXml(ComponentName component, ResolveInfo ri) { |
| 1338 | Provider p = null; |
| 1339 | |
| 1340 | ActivityInfo activityInfo = ri.activityInfo; |
| 1341 | XmlResourceParser parser = null; |
| 1342 | try { |
Amith Yamasani | 483f3b0 | 2012-03-13 16:08:00 -0700 | [diff] [blame] | 1343 | parser = activityInfo.loadXmlMetaData(mContext.getPackageManager(), |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1344 | AppWidgetManager.META_DATA_APPWIDGET_PROVIDER); |
| 1345 | if (parser == null) { |
| 1346 | Slog.w(TAG, "No " + AppWidgetManager.META_DATA_APPWIDGET_PROVIDER |
| 1347 | + " meta-data for " + "AppWidget provider '" + component + '\''); |
| 1348 | return null; |
| 1349 | } |
| 1350 | |
| 1351 | AttributeSet attrs = Xml.asAttributeSet(parser); |
| 1352 | |
| 1353 | int type; |
| 1354 | while ((type = parser.next()) != XmlPullParser.END_DOCUMENT |
| 1355 | && type != XmlPullParser.START_TAG) { |
| 1356 | // drain whitespace, comments, etc. |
| 1357 | } |
| 1358 | |
| 1359 | String nodeName = parser.getName(); |
| 1360 | if (!"appwidget-provider".equals(nodeName)) { |
| 1361 | Slog.w(TAG, "Meta-data does not start with appwidget-provider tag for" |
| 1362 | + " AppWidget provider '" + component + '\''); |
| 1363 | return null; |
| 1364 | } |
| 1365 | |
| 1366 | p = new Provider(); |
| 1367 | AppWidgetProviderInfo info = p.info = new AppWidgetProviderInfo(); |
| 1368 | info.provider = component; |
| 1369 | p.uid = activityInfo.applicationInfo.uid; |
| 1370 | |
Amith Yamasani | 483f3b0 | 2012-03-13 16:08:00 -0700 | [diff] [blame] | 1371 | Resources res = mContext.getPackageManager() |
Amith Yamasani | 8320de8 | 2012-10-05 16:10:38 -0700 | [diff] [blame] | 1372 | .getResourcesForApplicationAsUser(activityInfo.packageName, mUserId); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1373 | |
| 1374 | TypedArray sa = res.obtainAttributes(attrs, |
| 1375 | com.android.internal.R.styleable.AppWidgetProviderInfo); |
| 1376 | |
| 1377 | // These dimensions has to be resolved in the application's context. |
| 1378 | // We simply send back the raw complex data, which will be |
| 1379 | // converted to dp in {@link AppWidgetManager#getAppWidgetInfo}. |
| 1380 | TypedValue value = sa |
| 1381 | .peekValue(com.android.internal.R.styleable.AppWidgetProviderInfo_minWidth); |
| 1382 | info.minWidth = value != null ? value.data : 0; |
| 1383 | value = sa.peekValue(com.android.internal.R.styleable.AppWidgetProviderInfo_minHeight); |
| 1384 | info.minHeight = value != null ? value.data : 0; |
| 1385 | value = sa.peekValue( |
| 1386 | com.android.internal.R.styleable.AppWidgetProviderInfo_minResizeWidth); |
| 1387 | info.minResizeWidth = value != null ? value.data : info.minWidth; |
| 1388 | value = sa.peekValue( |
| 1389 | com.android.internal.R.styleable.AppWidgetProviderInfo_minResizeHeight); |
| 1390 | info.minResizeHeight = value != null ? value.data : info.minHeight; |
| 1391 | info.updatePeriodMillis = sa.getInt( |
| 1392 | com.android.internal.R.styleable.AppWidgetProviderInfo_updatePeriodMillis, 0); |
| 1393 | info.initialLayout = sa.getResourceId( |
| 1394 | com.android.internal.R.styleable.AppWidgetProviderInfo_initialLayout, 0); |
Adam Cohen | 0aa2d42 | 2012-09-07 17:37:26 -0700 | [diff] [blame] | 1395 | info.initialKeyguardLayout = sa.getResourceId(com.android.internal.R.styleable. |
| 1396 | AppWidgetProviderInfo_initialKeyguardLayout, 0); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1397 | String className = sa |
| 1398 | .getString(com.android.internal.R.styleable.AppWidgetProviderInfo_configure); |
| 1399 | if (className != null) { |
| 1400 | info.configure = new ComponentName(component.getPackageName(), className); |
| 1401 | } |
Amith Yamasani | 483f3b0 | 2012-03-13 16:08:00 -0700 | [diff] [blame] | 1402 | info.label = activityInfo.loadLabel(mContext.getPackageManager()).toString(); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1403 | info.icon = ri.getIconResource(); |
| 1404 | info.previewImage = sa.getResourceId( |
| 1405 | com.android.internal.R.styleable.AppWidgetProviderInfo_previewImage, 0); |
| 1406 | info.autoAdvanceViewId = sa.getResourceId( |
| 1407 | com.android.internal.R.styleable.AppWidgetProviderInfo_autoAdvanceViewId, -1); |
| 1408 | info.resizeMode = sa.getInt( |
| 1409 | com.android.internal.R.styleable.AppWidgetProviderInfo_resizeMode, |
| 1410 | AppWidgetProviderInfo.RESIZE_NONE); |
Adam Cohen | 0aa2d42 | 2012-09-07 17:37:26 -0700 | [diff] [blame] | 1411 | info.widgetCategory = sa.getInt( |
Michael Jurka | ca5e341 | 2012-09-14 12:18:51 -0700 | [diff] [blame] | 1412 | com.android.internal.R.styleable.AppWidgetProviderInfo_widgetCategory, |
Adam Cohen | 0aa2d42 | 2012-09-07 17:37:26 -0700 | [diff] [blame] | 1413 | AppWidgetProviderInfo.WIDGET_CATEGORY_HOME_SCREEN); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1414 | |
| 1415 | sa.recycle(); |
| 1416 | } catch (Exception e) { |
| 1417 | // Ok to catch Exception here, because anything going wrong because |
| 1418 | // of what a client process passes to us should not be fatal for the |
| 1419 | // system process. |
| 1420 | Slog.w(TAG, "XML parsing failed for AppWidget provider '" + component + '\'', e); |
| 1421 | return null; |
| 1422 | } finally { |
| 1423 | if (parser != null) |
| 1424 | parser.close(); |
| 1425 | } |
| 1426 | return p; |
| 1427 | } |
| 1428 | |
| 1429 | int getUidForPackage(String packageName) throws PackageManager.NameNotFoundException { |
Amith Yamasani | 483f3b0 | 2012-03-13 16:08:00 -0700 | [diff] [blame] | 1430 | PackageInfo pkgInfo = null; |
| 1431 | try { |
| 1432 | pkgInfo = mPm.getPackageInfo(packageName, 0, mUserId); |
| 1433 | } catch (RemoteException re) { |
| 1434 | // Shouldn't happen, local call |
| 1435 | } |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1436 | if (pkgInfo == null || pkgInfo.applicationInfo == null) { |
| 1437 | throw new PackageManager.NameNotFoundException(); |
| 1438 | } |
| 1439 | return pkgInfo.applicationInfo.uid; |
| 1440 | } |
| 1441 | |
Jim Miller | f229e4d | 2012-09-12 20:32:50 -0700 | [diff] [blame] | 1442 | int enforceSystemOrCallingUid(String packageName) throws IllegalArgumentException { |
| 1443 | int callingUid = Binder.getCallingUid(); |
Michael Jurka | 03bdc8a | 2012-09-21 16:10:21 -0700 | [diff] [blame] | 1444 | if (UserHandle.getAppId(callingUid) == Process.SYSTEM_UID || callingUid == 0) { |
Jim Miller | f229e4d | 2012-09-12 20:32:50 -0700 | [diff] [blame] | 1445 | return callingUid; |
| 1446 | } |
| 1447 | return enforceCallingUid(packageName); |
| 1448 | } |
| 1449 | |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1450 | int enforceCallingUid(String packageName) throws IllegalArgumentException { |
| 1451 | int callingUid = Binder.getCallingUid(); |
| 1452 | int packageUid; |
| 1453 | try { |
| 1454 | packageUid = getUidForPackage(packageName); |
| 1455 | } catch (PackageManager.NameNotFoundException ex) { |
| 1456 | throw new IllegalArgumentException("packageName and uid don't match packageName=" |
| 1457 | + packageName); |
| 1458 | } |
Dianne Hackborn | f02b60a | 2012-08-16 10:48:27 -0700 | [diff] [blame] | 1459 | if (!UserHandle.isSameApp(callingUid, packageUid)) { |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1460 | throw new IllegalArgumentException("packageName and uid don't match packageName=" |
| 1461 | + packageName); |
| 1462 | } |
| 1463 | return callingUid; |
| 1464 | } |
| 1465 | |
| 1466 | void sendInitialBroadcasts() { |
| 1467 | synchronized (mAppWidgetIds) { |
| 1468 | ensureStateLoadedLocked(); |
| 1469 | final int N = mInstalledProviders.size(); |
| 1470 | for (int i = 0; i < N; i++) { |
| 1471 | Provider p = mInstalledProviders.get(i); |
| 1472 | if (p.instances.size() > 0) { |
| 1473 | sendEnableIntentLocked(p); |
| 1474 | int[] appWidgetIds = getAppWidgetIds(p); |
| 1475 | sendUpdateIntentLocked(p, appWidgetIds); |
| 1476 | registerForBroadcastsLocked(p, appWidgetIds); |
| 1477 | } |
| 1478 | } |
| 1479 | } |
| 1480 | } |
| 1481 | |
| 1482 | // only call from initialization -- it assumes that the data structures are all empty |
| 1483 | void loadStateLocked() { |
| 1484 | AtomicFile file = savedStateFile(); |
| 1485 | try { |
| 1486 | FileInputStream stream = file.openRead(); |
| 1487 | readStateFromFileLocked(stream); |
| 1488 | |
| 1489 | if (stream != null) { |
| 1490 | try { |
| 1491 | stream.close(); |
| 1492 | } catch (IOException e) { |
| 1493 | Slog.w(TAG, "Failed to close state FileInputStream " + e); |
| 1494 | } |
| 1495 | } |
| 1496 | } catch (FileNotFoundException e) { |
| 1497 | Slog.w(TAG, "Failed to read state: " + e); |
| 1498 | } |
| 1499 | } |
| 1500 | |
| 1501 | void saveStateLocked() { |
| 1502 | AtomicFile file = savedStateFile(); |
| 1503 | FileOutputStream stream; |
| 1504 | try { |
| 1505 | stream = file.startWrite(); |
| 1506 | if (writeStateToFileLocked(stream)) { |
| 1507 | file.finishWrite(stream); |
| 1508 | } else { |
| 1509 | file.failWrite(stream); |
| 1510 | Slog.w(TAG, "Failed to save state, restoring backup."); |
| 1511 | } |
| 1512 | } catch (IOException e) { |
| 1513 | Slog.w(TAG, "Failed open state file for write: " + e); |
| 1514 | } |
| 1515 | } |
| 1516 | |
| 1517 | boolean writeStateToFileLocked(FileOutputStream stream) { |
| 1518 | int N; |
| 1519 | |
| 1520 | try { |
| 1521 | XmlSerializer out = new FastXmlSerializer(); |
| 1522 | out.setOutput(stream, "utf-8"); |
| 1523 | out.startDocument(null, true); |
| 1524 | out.startTag(null, "gs"); |
| 1525 | |
| 1526 | int providerIndex = 0; |
| 1527 | N = mInstalledProviders.size(); |
| 1528 | for (int i = 0; i < N; i++) { |
| 1529 | Provider p = mInstalledProviders.get(i); |
| 1530 | if (p.instances.size() > 0) { |
| 1531 | out.startTag(null, "p"); |
| 1532 | out.attribute(null, "pkg", p.info.provider.getPackageName()); |
| 1533 | out.attribute(null, "cl", p.info.provider.getClassName()); |
| 1534 | out.endTag(null, "p"); |
| 1535 | p.tag = providerIndex; |
| 1536 | providerIndex++; |
| 1537 | } |
| 1538 | } |
| 1539 | |
| 1540 | N = mHosts.size(); |
| 1541 | for (int i = 0; i < N; i++) { |
| 1542 | Host host = mHosts.get(i); |
| 1543 | out.startTag(null, "h"); |
| 1544 | out.attribute(null, "pkg", host.packageName); |
| 1545 | out.attribute(null, "id", Integer.toHexString(host.hostId)); |
| 1546 | out.endTag(null, "h"); |
| 1547 | host.tag = i; |
| 1548 | } |
| 1549 | |
| 1550 | N = mAppWidgetIds.size(); |
| 1551 | for (int i = 0; i < N; i++) { |
| 1552 | AppWidgetId id = mAppWidgetIds.get(i); |
| 1553 | out.startTag(null, "g"); |
| 1554 | out.attribute(null, "id", Integer.toHexString(id.appWidgetId)); |
| 1555 | out.attribute(null, "h", Integer.toHexString(id.host.tag)); |
| 1556 | if (id.provider != null) { |
| 1557 | out.attribute(null, "p", Integer.toHexString(id.provider.tag)); |
| 1558 | } |
Adam Cohen | 0aa2d42 | 2012-09-07 17:37:26 -0700 | [diff] [blame] | 1559 | if (id.options != null) { |
| 1560 | out.attribute(null, "min_width", Integer.toHexString(id.options.getInt( |
| 1561 | AppWidgetManager.OPTION_APPWIDGET_MIN_WIDTH))); |
| 1562 | out.attribute(null, "min_height", Integer.toHexString(id.options.getInt( |
| 1563 | AppWidgetManager.OPTION_APPWIDGET_MIN_HEIGHT))); |
| 1564 | out.attribute(null, "max_width", Integer.toHexString(id.options.getInt( |
| 1565 | AppWidgetManager.OPTION_APPWIDGET_MAX_WIDTH))); |
| 1566 | out.attribute(null, "max_height", Integer.toHexString(id.options.getInt( |
| 1567 | AppWidgetManager.OPTION_APPWIDGET_MAX_HEIGHT))); |
| 1568 | out.attribute(null, "host_category", Integer.toHexString(id.options.getInt( |
| 1569 | AppWidgetManager.OPTION_APPWIDGET_HOST_CATEGORY))); |
| 1570 | } |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1571 | out.endTag(null, "g"); |
| 1572 | } |
| 1573 | |
Michael Jurka | 61a5b01 | 2012-04-13 10:39:45 -0700 | [diff] [blame] | 1574 | Iterator<String> it = mPackagesWithBindWidgetPermission.iterator(); |
| 1575 | while (it.hasNext()) { |
| 1576 | out.startTag(null, "b"); |
| 1577 | out.attribute(null, "packageName", it.next()); |
| 1578 | out.endTag(null, "b"); |
| 1579 | } |
| 1580 | |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1581 | out.endTag(null, "gs"); |
| 1582 | |
| 1583 | out.endDocument(); |
| 1584 | return true; |
| 1585 | } catch (IOException e) { |
| 1586 | Slog.w(TAG, "Failed to write state: " + e); |
| 1587 | return false; |
| 1588 | } |
| 1589 | } |
| 1590 | |
Adam Cohen | 0aa2d42 | 2012-09-07 17:37:26 -0700 | [diff] [blame] | 1591 | @SuppressWarnings("unused") |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1592 | void readStateFromFileLocked(FileInputStream stream) { |
| 1593 | boolean success = false; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1594 | try { |
| 1595 | XmlPullParser parser = Xml.newPullParser(); |
| 1596 | parser.setInput(stream, null); |
| 1597 | |
| 1598 | int type; |
| 1599 | int providerIndex = 0; |
| 1600 | HashMap<Integer, Provider> loadedProviders = new HashMap<Integer, Provider>(); |
| 1601 | do { |
| 1602 | type = parser.next(); |
| 1603 | if (type == XmlPullParser.START_TAG) { |
| 1604 | String tag = parser.getName(); |
| 1605 | if ("p".equals(tag)) { |
| 1606 | // TODO: do we need to check that this package has the same signature |
| 1607 | // as before? |
| 1608 | String pkg = parser.getAttributeValue(null, "pkg"); |
| 1609 | String cl = parser.getAttributeValue(null, "cl"); |
| 1610 | |
Amith Yamasani | f203aee | 2012-08-29 18:41:53 -0700 | [diff] [blame] | 1611 | final IPackageManager packageManager = AppGlobals.getPackageManager(); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1612 | try { |
Amith Yamasani | 8320de8 | 2012-10-05 16:10:38 -0700 | [diff] [blame] | 1613 | packageManager.getReceiverInfo(new ComponentName(pkg, cl), 0, mUserId); |
Amith Yamasani | f203aee | 2012-08-29 18:41:53 -0700 | [diff] [blame] | 1614 | } catch (RemoteException e) { |
| 1615 | String[] pkgs = mContext.getPackageManager() |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1616 | .currentToCanonicalPackageNames(new String[] { pkg }); |
| 1617 | pkg = pkgs[0]; |
| 1618 | } |
| 1619 | |
| 1620 | Provider p = lookupProviderLocked(new ComponentName(pkg, cl)); |
| 1621 | if (p == null && mSafeMode) { |
| 1622 | // if we're in safe mode, make a temporary one |
| 1623 | p = new Provider(); |
| 1624 | p.info = new AppWidgetProviderInfo(); |
| 1625 | p.info.provider = new ComponentName(pkg, cl); |
| 1626 | p.zombie = true; |
| 1627 | mInstalledProviders.add(p); |
| 1628 | } |
| 1629 | if (p != null) { |
| 1630 | // if it wasn't uninstalled or something |
| 1631 | loadedProviders.put(providerIndex, p); |
| 1632 | } |
| 1633 | providerIndex++; |
| 1634 | } else if ("h".equals(tag)) { |
| 1635 | Host host = new Host(); |
| 1636 | |
| 1637 | // TODO: do we need to check that this package has the same signature |
| 1638 | // as before? |
| 1639 | host.packageName = parser.getAttributeValue(null, "pkg"); |
| 1640 | try { |
| 1641 | host.uid = getUidForPackage(host.packageName); |
| 1642 | } catch (PackageManager.NameNotFoundException ex) { |
| 1643 | host.zombie = true; |
| 1644 | } |
| 1645 | if (!host.zombie || mSafeMode) { |
| 1646 | // In safe mode, we don't discard the hosts we don't recognize |
| 1647 | // so that they're not pruned from our list. Otherwise, we do. |
| 1648 | host.hostId = Integer |
| 1649 | .parseInt(parser.getAttributeValue(null, "id"), 16); |
| 1650 | mHosts.add(host); |
| 1651 | } |
Michael Jurka | 61a5b01 | 2012-04-13 10:39:45 -0700 | [diff] [blame] | 1652 | } else if ("b".equals(tag)) { |
| 1653 | String packageName = parser.getAttributeValue(null, "packageName"); |
| 1654 | if (packageName != null) { |
| 1655 | mPackagesWithBindWidgetPermission.add(packageName); |
| 1656 | } |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1657 | } else if ("g".equals(tag)) { |
| 1658 | AppWidgetId id = new AppWidgetId(); |
| 1659 | id.appWidgetId = Integer.parseInt(parser.getAttributeValue(null, "id"), 16); |
| 1660 | if (id.appWidgetId >= mNextAppWidgetId) { |
| 1661 | mNextAppWidgetId = id.appWidgetId + 1; |
| 1662 | } |
| 1663 | |
Adam Cohen | 0aa2d42 | 2012-09-07 17:37:26 -0700 | [diff] [blame] | 1664 | Bundle options = new Bundle(); |
| 1665 | String minWidthString = parser.getAttributeValue(null, "min_width"); |
| 1666 | if (minWidthString != null) { |
| 1667 | options.putInt(AppWidgetManager.OPTION_APPWIDGET_MIN_WIDTH, |
| 1668 | Integer.parseInt(minWidthString, 16)); |
| 1669 | } |
| 1670 | String minHeightString = parser.getAttributeValue(null, "min_height"); |
Adam Cohen | db38d8a | 2012-09-21 18:14:58 -0700 | [diff] [blame] | 1671 | if (minHeightString != null) { |
Adam Cohen | 0aa2d42 | 2012-09-07 17:37:26 -0700 | [diff] [blame] | 1672 | options.putInt(AppWidgetManager.OPTION_APPWIDGET_MIN_HEIGHT, |
| 1673 | Integer.parseInt(minHeightString, 16)); |
| 1674 | } |
Adam Cohen | db38d8a | 2012-09-21 18:14:58 -0700 | [diff] [blame] | 1675 | String maxWidthString = parser.getAttributeValue(null, "max_width"); |
| 1676 | if (maxWidthString != null) { |
Adam Cohen | 0aa2d42 | 2012-09-07 17:37:26 -0700 | [diff] [blame] | 1677 | options.putInt(AppWidgetManager.OPTION_APPWIDGET_MAX_WIDTH, |
| 1678 | Integer.parseInt(maxWidthString, 16)); |
| 1679 | } |
| 1680 | String maxHeightString = parser.getAttributeValue(null, "max_height"); |
Adam Cohen | db38d8a | 2012-09-21 18:14:58 -0700 | [diff] [blame] | 1681 | if (maxHeightString != null) { |
Adam Cohen | 0aa2d42 | 2012-09-07 17:37:26 -0700 | [diff] [blame] | 1682 | options.putInt(AppWidgetManager.OPTION_APPWIDGET_MAX_HEIGHT, |
| 1683 | Integer.parseInt(maxHeightString, 16)); |
| 1684 | } |
| 1685 | String categoryString = parser.getAttributeValue(null, "host_category"); |
Adam Cohen | db38d8a | 2012-09-21 18:14:58 -0700 | [diff] [blame] | 1686 | if (categoryString != null) { |
Adam Cohen | 0aa2d42 | 2012-09-07 17:37:26 -0700 | [diff] [blame] | 1687 | options.putInt(AppWidgetManager.OPTION_APPWIDGET_HOST_CATEGORY, |
| 1688 | Integer.parseInt(categoryString, 16)); |
| 1689 | } |
| 1690 | id.options = options; |
| 1691 | |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1692 | String providerString = parser.getAttributeValue(null, "p"); |
| 1693 | if (providerString != null) { |
| 1694 | // there's no provider if it hasn't been bound yet. |
| 1695 | // maybe we don't have to save this, but it brings the system |
| 1696 | // to the state it was in. |
| 1697 | int pIndex = Integer.parseInt(providerString, 16); |
| 1698 | id.provider = loadedProviders.get(pIndex); |
| 1699 | if (false) { |
| 1700 | Slog.d(TAG, "bound appWidgetId=" + id.appWidgetId + " to provider " |
| 1701 | + pIndex + " which is " + id.provider); |
| 1702 | } |
| 1703 | if (id.provider == null) { |
| 1704 | // This provider is gone. We just let the host figure out |
| 1705 | // that this happened when it fails to load it. |
| 1706 | continue; |
| 1707 | } |
| 1708 | } |
| 1709 | |
| 1710 | int hIndex = Integer.parseInt(parser.getAttributeValue(null, "h"), 16); |
| 1711 | id.host = mHosts.get(hIndex); |
| 1712 | if (id.host == null) { |
| 1713 | // This host is gone. |
| 1714 | continue; |
| 1715 | } |
| 1716 | |
| 1717 | if (id.provider != null) { |
| 1718 | id.provider.instances.add(id); |
| 1719 | } |
| 1720 | id.host.instances.add(id); |
| 1721 | mAppWidgetIds.add(id); |
| 1722 | } |
| 1723 | } |
| 1724 | } while (type != XmlPullParser.END_DOCUMENT); |
| 1725 | success = true; |
| 1726 | } catch (NullPointerException e) { |
| 1727 | Slog.w(TAG, "failed parsing " + e); |
| 1728 | } catch (NumberFormatException e) { |
| 1729 | Slog.w(TAG, "failed parsing " + e); |
| 1730 | } catch (XmlPullParserException e) { |
| 1731 | Slog.w(TAG, "failed parsing " + e); |
| 1732 | } catch (IOException e) { |
| 1733 | Slog.w(TAG, "failed parsing " + e); |
| 1734 | } catch (IndexOutOfBoundsException e) { |
| 1735 | Slog.w(TAG, "failed parsing " + e); |
| 1736 | } |
| 1737 | |
| 1738 | if (success) { |
| 1739 | // delete any hosts that didn't manage to get connected (should happen) |
| 1740 | // if it matters, they'll be reconnected. |
| 1741 | for (int i = mHosts.size() - 1; i >= 0; i--) { |
| 1742 | pruneHostLocked(mHosts.get(i)); |
| 1743 | } |
| 1744 | } else { |
| 1745 | // failed reading, clean up |
| 1746 | Slog.w(TAG, "Failed to read state, clearing widgets and hosts."); |
| 1747 | |
| 1748 | mAppWidgetIds.clear(); |
| 1749 | mHosts.clear(); |
| 1750 | final int N = mInstalledProviders.size(); |
| 1751 | for (int i = 0; i < N; i++) { |
| 1752 | mInstalledProviders.get(i).instances.clear(); |
| 1753 | } |
| 1754 | } |
| 1755 | } |
| 1756 | |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 1757 | static File getSettingsFile(int userId) { |
Amith Yamasani | 61f5737 | 2012-08-31 12:12:28 -0700 | [diff] [blame] | 1758 | return new File(Environment.getUserSystemDirectory(userId), SETTINGS_FILENAME); |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 1759 | } |
| 1760 | |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1761 | AtomicFile savedStateFile() { |
Amith Yamasani | 61f5737 | 2012-08-31 12:12:28 -0700 | [diff] [blame] | 1762 | File dir = Environment.getUserSystemDirectory(mUserId); |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 1763 | File settingsFile = getSettingsFile(mUserId); |
Amith Yamasani | e0eb39b | 2012-05-01 13:48:48 -0700 | [diff] [blame] | 1764 | if (!settingsFile.exists() && mUserId == 0) { |
| 1765 | if (!dir.exists()) { |
| 1766 | dir.mkdirs(); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1767 | } |
Amith Yamasani | e0eb39b | 2012-05-01 13:48:48 -0700 | [diff] [blame] | 1768 | // Migrate old data |
| 1769 | File oldFile = new File("/data/system/" + SETTINGS_FILENAME); |
| 1770 | // Method doesn't throw an exception on failure. Ignore any errors |
| 1771 | // in moving the file (like non-existence) |
| 1772 | oldFile.renameTo(settingsFile); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1773 | } |
| 1774 | return new AtomicFile(settingsFile); |
| 1775 | } |
| 1776 | |
Amith Yamasani | 756901d | 2012-10-12 12:30:07 -0700 | [diff] [blame] | 1777 | void onUserStopping() { |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 1778 | // prune the ones we don't want to keep |
| 1779 | int N = mInstalledProviders.size(); |
| 1780 | for (int i = N - 1; i >= 0; i--) { |
| 1781 | Provider p = mInstalledProviders.get(i); |
| 1782 | cancelBroadcasts(p); |
| 1783 | } |
Amith Yamasani | 756901d | 2012-10-12 12:30:07 -0700 | [diff] [blame] | 1784 | } |
| 1785 | |
| 1786 | void onUserRemoved() { |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 1787 | getSettingsFile(mUserId).delete(); |
| 1788 | } |
| 1789 | |
Winson Chung | 7fbd284 | 2012-06-13 10:35:51 -0700 | [diff] [blame] | 1790 | boolean addProvidersForPackageLocked(String pkgName) { |
| 1791 | boolean providersAdded = false; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1792 | Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE); |
| 1793 | intent.setPackage(pkgName); |
Amith Yamasani | 483f3b0 | 2012-03-13 16:08:00 -0700 | [diff] [blame] | 1794 | List<ResolveInfo> broadcastReceivers; |
| 1795 | try { |
| 1796 | broadcastReceivers = mPm.queryIntentReceivers(intent, |
| 1797 | intent.resolveTypeIfNeeded(mContext.getContentResolver()), |
| 1798 | PackageManager.GET_META_DATA, mUserId); |
| 1799 | } catch (RemoteException re) { |
| 1800 | // Shouldn't happen, local call |
Winson Chung | 7fbd284 | 2012-06-13 10:35:51 -0700 | [diff] [blame] | 1801 | return false; |
Amith Yamasani | 483f3b0 | 2012-03-13 16:08:00 -0700 | [diff] [blame] | 1802 | } |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1803 | final int N = broadcastReceivers == null ? 0 : broadcastReceivers.size(); |
| 1804 | for (int i = 0; i < N; i++) { |
| 1805 | ResolveInfo ri = broadcastReceivers.get(i); |
| 1806 | ActivityInfo ai = ri.activityInfo; |
| 1807 | if ((ai.applicationInfo.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0) { |
| 1808 | continue; |
| 1809 | } |
| 1810 | if (pkgName.equals(ai.packageName)) { |
| 1811 | addProviderLocked(ri); |
Winson Chung | 7fbd284 | 2012-06-13 10:35:51 -0700 | [diff] [blame] | 1812 | providersAdded = true; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1813 | } |
| 1814 | } |
Winson Chung | 7fbd284 | 2012-06-13 10:35:51 -0700 | [diff] [blame] | 1815 | |
| 1816 | return providersAdded; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1817 | } |
| 1818 | |
Winson Chung | a319505 | 2012-06-25 10:02:10 -0700 | [diff] [blame] | 1819 | /** |
| 1820 | * Updates all providers with the specified package names, and records any providers that were |
| 1821 | * pruned. |
| 1822 | * |
| 1823 | * @return whether any providers were updated |
| 1824 | */ |
| 1825 | boolean updateProvidersForPackageLocked(String pkgName, Set<ComponentName> removedProviders) { |
Winson Chung | 7fbd284 | 2012-06-13 10:35:51 -0700 | [diff] [blame] | 1826 | boolean providersUpdated = false; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1827 | HashSet<String> keep = new HashSet<String>(); |
| 1828 | Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE); |
| 1829 | intent.setPackage(pkgName); |
Amith Yamasani | 483f3b0 | 2012-03-13 16:08:00 -0700 | [diff] [blame] | 1830 | List<ResolveInfo> broadcastReceivers; |
| 1831 | try { |
| 1832 | broadcastReceivers = mPm.queryIntentReceivers(intent, |
| 1833 | intent.resolveTypeIfNeeded(mContext.getContentResolver()), |
| 1834 | PackageManager.GET_META_DATA, mUserId); |
| 1835 | } catch (RemoteException re) { |
| 1836 | // Shouldn't happen, local call |
Winson Chung | 7fbd284 | 2012-06-13 10:35:51 -0700 | [diff] [blame] | 1837 | return false; |
Amith Yamasani | 483f3b0 | 2012-03-13 16:08:00 -0700 | [diff] [blame] | 1838 | } |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1839 | |
| 1840 | // add the missing ones and collect which ones to keep |
| 1841 | int N = broadcastReceivers == null ? 0 : broadcastReceivers.size(); |
| 1842 | for (int i = 0; i < N; i++) { |
| 1843 | ResolveInfo ri = broadcastReceivers.get(i); |
| 1844 | ActivityInfo ai = ri.activityInfo; |
| 1845 | if ((ai.applicationInfo.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0) { |
| 1846 | continue; |
| 1847 | } |
| 1848 | if (pkgName.equals(ai.packageName)) { |
| 1849 | ComponentName component = new ComponentName(ai.packageName, ai.name); |
| 1850 | Provider p = lookupProviderLocked(component); |
| 1851 | if (p == null) { |
| 1852 | if (addProviderLocked(ri)) { |
| 1853 | keep.add(ai.name); |
Winson Chung | 7fbd284 | 2012-06-13 10:35:51 -0700 | [diff] [blame] | 1854 | providersUpdated = true; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1855 | } |
| 1856 | } else { |
| 1857 | Provider parsed = parseProviderInfoXml(component, ri); |
| 1858 | if (parsed != null) { |
| 1859 | keep.add(ai.name); |
| 1860 | // Use the new AppWidgetProviderInfo. |
| 1861 | p.info = parsed.info; |
| 1862 | // If it's enabled |
| 1863 | final int M = p.instances.size(); |
| 1864 | if (M > 0) { |
| 1865 | int[] appWidgetIds = getAppWidgetIds(p); |
| 1866 | // Reschedule for the new updatePeriodMillis (don't worry about handling |
| 1867 | // it specially if updatePeriodMillis didn't change because we just sent |
| 1868 | // an update, and the next one will be updatePeriodMillis from now). |
| 1869 | cancelBroadcasts(p); |
| 1870 | registerForBroadcastsLocked(p, appWidgetIds); |
| 1871 | // If it's currently showing, call back with the new |
| 1872 | // AppWidgetProviderInfo. |
| 1873 | for (int j = 0; j < M; j++) { |
| 1874 | AppWidgetId id = p.instances.get(j); |
| 1875 | id.views = null; |
| 1876 | if (id.host != null && id.host.callbacks != null) { |
| 1877 | try { |
| 1878 | id.host.callbacks.providerChanged(id.appWidgetId, p.info); |
| 1879 | } catch (RemoteException ex) { |
| 1880 | // It failed; remove the callback. No need to prune because |
| 1881 | // we know that this host is still referenced by this |
| 1882 | // instance. |
| 1883 | id.host.callbacks = null; |
| 1884 | } |
| 1885 | } |
| 1886 | } |
| 1887 | // Now that we've told the host, push out an update. |
| 1888 | sendUpdateIntentLocked(p, appWidgetIds); |
Winson Chung | 7fbd284 | 2012-06-13 10:35:51 -0700 | [diff] [blame] | 1889 | providersUpdated = true; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1890 | } |
| 1891 | } |
| 1892 | } |
| 1893 | } |
| 1894 | } |
| 1895 | |
| 1896 | // prune the ones we don't want to keep |
| 1897 | N = mInstalledProviders.size(); |
| 1898 | for (int i = N - 1; i >= 0; i--) { |
| 1899 | Provider p = mInstalledProviders.get(i); |
| 1900 | if (pkgName.equals(p.info.provider.getPackageName()) |
| 1901 | && !keep.contains(p.info.provider.getClassName())) { |
Winson Chung | a319505 | 2012-06-25 10:02:10 -0700 | [diff] [blame] | 1902 | if (removedProviders != null) { |
| 1903 | removedProviders.add(p.info.provider); |
| 1904 | } |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1905 | removeProviderLocked(i, p); |
Winson Chung | 7fbd284 | 2012-06-13 10:35:51 -0700 | [diff] [blame] | 1906 | providersUpdated = true; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1907 | } |
| 1908 | } |
Winson Chung | 7fbd284 | 2012-06-13 10:35:51 -0700 | [diff] [blame] | 1909 | |
| 1910 | return providersUpdated; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1911 | } |
| 1912 | |
Winson Chung | 7fbd284 | 2012-06-13 10:35:51 -0700 | [diff] [blame] | 1913 | boolean removeProvidersForPackageLocked(String pkgName) { |
| 1914 | boolean providersRemoved = false; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1915 | int N = mInstalledProviders.size(); |
| 1916 | for (int i = N - 1; i >= 0; i--) { |
| 1917 | Provider p = mInstalledProviders.get(i); |
| 1918 | if (pkgName.equals(p.info.provider.getPackageName())) { |
| 1919 | removeProviderLocked(i, p); |
Winson Chung | 7fbd284 | 2012-06-13 10:35:51 -0700 | [diff] [blame] | 1920 | providersRemoved = true; |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1921 | } |
| 1922 | } |
| 1923 | |
| 1924 | // Delete the hosts for this package too |
| 1925 | // |
| 1926 | // By now, we have removed any AppWidgets that were in any hosts here, |
| 1927 | // so we don't need to worry about sending DISABLE broadcasts to them. |
| 1928 | N = mHosts.size(); |
| 1929 | for (int i = N - 1; i >= 0; i--) { |
| 1930 | Host host = mHosts.get(i); |
| 1931 | if (pkgName.equals(host.packageName)) { |
| 1932 | deleteHostLocked(host); |
| 1933 | } |
| 1934 | } |
Winson Chung | 7fbd284 | 2012-06-13 10:35:51 -0700 | [diff] [blame] | 1935 | |
| 1936 | return providersRemoved; |
| 1937 | } |
| 1938 | |
| 1939 | void notifyHostsForProvidersChangedLocked() { |
| 1940 | final int N = mHosts.size(); |
| 1941 | for (int i = N - 1; i >= 0; i--) { |
| 1942 | Host host = mHosts.get(i); |
| 1943 | try { |
| 1944 | if (host.callbacks != null) { |
| 1945 | host.callbacks.providersChanged(); |
| 1946 | } |
| 1947 | } catch (RemoteException ex) { |
| 1948 | // It failed; remove the callback. No need to prune because |
| 1949 | // we know that this host is still referenced by this |
| 1950 | // instance. |
| 1951 | host.callbacks = null; |
| 1952 | } |
| 1953 | } |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 1954 | } |
| 1955 | } |