| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.server.wallpaper; |
| |
| import static android.app.WallpaperManager.FLAG_SYSTEM; |
| import static android.app.WallpaperManager.FLAG_LOCK; |
| import static android.os.ParcelFileDescriptor.*; |
| |
| import android.app.ActivityManager; |
| import android.app.ActivityManagerNative; |
| import android.app.AppGlobals; |
| import android.app.AppOpsManager; |
| import android.app.IUserSwitchObserver; |
| import android.app.IWallpaperManager; |
| import android.app.IWallpaperManagerCallback; |
| import android.app.PendingIntent; |
| import android.app.WallpaperInfo; |
| import android.app.WallpaperManager; |
| import android.app.admin.DevicePolicyManager; |
| import android.app.backup.BackupManager; |
| import android.app.backup.WallpaperBackupHelper; |
| import android.content.BroadcastReceiver; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.ServiceConnection; |
| import android.content.pm.IPackageManager; |
| import android.content.pm.PackageManager; |
| import android.content.pm.ResolveInfo; |
| import android.content.pm.ServiceInfo; |
| import android.content.pm.PackageManager.NameNotFoundException; |
| import android.content.pm.UserInfo; |
| import android.content.res.Resources; |
| import android.graphics.Bitmap; |
| import android.graphics.BitmapFactory; |
| import android.graphics.BitmapRegionDecoder; |
| import android.graphics.Point; |
| import android.graphics.Rect; |
| import android.os.Binder; |
| import android.os.Bundle; |
| import android.os.Environment; |
| import android.os.FileUtils; |
| import android.os.IBinder; |
| import android.os.IRemoteCallback; |
| import android.os.RemoteException; |
| import android.os.FileObserver; |
| import android.os.ParcelFileDescriptor; |
| import android.os.RemoteCallbackList; |
| import android.os.SELinux; |
| import android.os.ServiceManager; |
| import android.os.SystemClock; |
| import android.os.UserHandle; |
| import android.os.UserManager; |
| import android.service.wallpaper.IWallpaperConnection; |
| import android.service.wallpaper.IWallpaperEngine; |
| import android.service.wallpaper.IWallpaperService; |
| import android.service.wallpaper.WallpaperService; |
| import android.util.EventLog; |
| import android.util.Slog; |
| import android.util.SparseArray; |
| import android.util.Xml; |
| import android.view.Display; |
| import android.view.IWindowManager; |
| import android.view.WindowManager; |
| |
| import java.io.BufferedOutputStream; |
| import java.io.FileDescriptor; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.File; |
| import java.io.FileNotFoundException; |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.io.PrintWriter; |
| import java.nio.charset.StandardCharsets; |
| import java.util.Arrays; |
| import java.util.List; |
| |
| import org.xmlpull.v1.XmlPullParser; |
| import org.xmlpull.v1.XmlPullParserException; |
| import org.xmlpull.v1.XmlSerializer; |
| |
| import com.android.internal.content.PackageMonitor; |
| import com.android.internal.util.FastXmlSerializer; |
| import com.android.internal.util.JournaledFile; |
| import com.android.internal.R; |
| import com.android.server.EventLogTags; |
| |
| import libcore.io.IoUtils; |
| |
| public class WallpaperManagerService extends IWallpaperManager.Stub { |
| static final String TAG = "WallpaperManagerService"; |
| static final boolean DEBUG = false; |
| |
| final Object mLock = new Object(); |
| |
| /** |
| * Minimum time between crashes of a wallpaper service for us to consider |
| * restarting it vs. just reverting to the static wallpaper. |
| */ |
| static final long MIN_WALLPAPER_CRASH_TIME = 10000; |
| static final int MAX_WALLPAPER_COMPONENT_LOG_LENGTH = 128; |
| static final String WALLPAPER = "wallpaper_orig"; |
| static final String WALLPAPER_CROP = "wallpaper"; |
| static final String WALLPAPER_LOCK_ORIG = "wallpaper_lock_orig"; |
| static final String WALLPAPER_LOCK_CROP = "wallpaper_lock"; |
| static final String WALLPAPER_INFO = "wallpaper_info.xml"; |
| |
| // All the various per-user state files we need to be aware of |
| static final String[] sPerUserFiles = new String[] { |
| WALLPAPER, WALLPAPER_CROP, |
| WALLPAPER_LOCK_ORIG, WALLPAPER_LOCK_CROP, |
| WALLPAPER_INFO |
| }; |
| |
| /** |
| * Observes the wallpaper for changes and notifies all IWallpaperServiceCallbacks |
| * that the wallpaper has changed. The CREATE is triggered when there is no |
| * wallpaper set and is created for the first time. The CLOSE_WRITE is triggered |
| * everytime the wallpaper is changed. |
| */ |
| private class WallpaperObserver extends FileObserver { |
| |
| final int mUserId; |
| final WallpaperData mWallpaper; |
| final File mWallpaperDir; |
| final File mWallpaperFile; |
| final File mWallpaperLockFile; |
| final File mWallpaperInfoFile; |
| |
| public WallpaperObserver(WallpaperData wallpaper) { |
| super(getWallpaperDir(wallpaper.userId).getAbsolutePath(), |
| CLOSE_WRITE | MOVED_TO | DELETE | DELETE_SELF); |
| mUserId = wallpaper.userId; |
| mWallpaperDir = getWallpaperDir(wallpaper.userId); |
| mWallpaper = wallpaper; |
| mWallpaperFile = new File(mWallpaperDir, WALLPAPER); |
| mWallpaperLockFile = new File(mWallpaperDir, WALLPAPER_LOCK_ORIG); |
| mWallpaperInfoFile = new File(mWallpaperDir, WALLPAPER_INFO); |
| } |
| |
| private WallpaperData dataForEvent(boolean sysChanged, boolean lockChanged) { |
| WallpaperData wallpaper = null; |
| synchronized (mLock) { |
| if (lockChanged) { |
| wallpaper = mLockWallpaperMap.get(mUserId); |
| } |
| if (wallpaper == null) { |
| // no lock-specific wallpaper exists, or sys case, handled together |
| wallpaper = mWallpaperMap.get(mUserId); |
| } |
| } |
| return (wallpaper != null) ? wallpaper : mWallpaper; |
| } |
| |
| @Override |
| public void onEvent(int event, String path) { |
| if (path == null) { |
| return; |
| } |
| final boolean written = (event == CLOSE_WRITE || event == MOVED_TO); |
| final File changedFile = new File(mWallpaperDir, path); |
| |
| // System and system+lock changes happen on the system wallpaper input file; |
| // lock-only changes happen on the dedicated lock wallpaper input file |
| final boolean sysWallpaperChanged = (mWallpaperFile.equals(changedFile)); |
| final boolean lockWallpaperChanged = (mWallpaperLockFile.equals(changedFile)); |
| WallpaperData wallpaper = dataForEvent(sysWallpaperChanged, lockWallpaperChanged); |
| |
| if (DEBUG) { |
| Slog.v(TAG, "Wallpaper file change: evt=" + event |
| + " path=" + path |
| + " sys=" + sysWallpaperChanged |
| + " lock=" + lockWallpaperChanged |
| + " imagePending=" + wallpaper.imageWallpaperPending |
| + " whichPending=0x" + Integer.toHexString(wallpaper.whichPending) |
| + " written=" + written); |
| } |
| synchronized (mLock) { |
| if (sysWallpaperChanged || mWallpaperInfoFile.equals(changedFile)) { |
| // changing the wallpaper means we'll need to back up the new one |
| long origId = Binder.clearCallingIdentity(); |
| BackupManager bm = new BackupManager(mContext); |
| bm.dataChanged(); |
| Binder.restoreCallingIdentity(origId); |
| } |
| if (sysWallpaperChanged || lockWallpaperChanged) { |
| notifyCallbacksLocked(wallpaper); |
| if (wallpaper.wallpaperComponent == null |
| || event != CLOSE_WRITE // includes the MOVED_TO case |
| || wallpaper.imageWallpaperPending) { |
| if (written) { |
| // The image source has finished writing the source image, |
| // so we now produce the crop rect (in the background), and |
| // only publish the new displayable (sub)image as a result |
| // of that work. |
| if (DEBUG) { |
| Slog.v(TAG, "Wallpaper written; generating crop"); |
| } |
| generateCrop(wallpaper); |
| if (DEBUG) { |
| Slog.v(TAG, "Crop done; invoking completion callback"); |
| } |
| wallpaper.imageWallpaperPending = false; |
| if (wallpaper.setComplete != null) { |
| try { |
| wallpaper.setComplete.onWallpaperChanged(); |
| } catch (RemoteException e) { |
| // if this fails we don't really care; the setting app may just |
| // have crashed and that sort of thing is a fact of life. |
| } |
| } |
| if (sysWallpaperChanged) { |
| // If this was the system wallpaper, rebind... |
| bindWallpaperComponentLocked(mImageWallpaper, true, |
| false, wallpaper, null); |
| } |
| if (lockWallpaperChanged |
| || (wallpaper.whichPending & FLAG_LOCK) != 0) { |
| if (DEBUG) { |
| Slog.i(TAG, "Lock-relevant wallpaper changed"); |
| } |
| // either a lock-only wallpaper commit or a system+lock event. |
| // if it's system-plus-lock we need to wipe the lock bookkeeping; |
| // we're falling back to displaying the system wallpaper there. |
| if (!lockWallpaperChanged) { |
| mLockWallpaperMap.remove(wallpaper.userId); |
| } |
| // and in any case, tell keyguard about it |
| final IWallpaperManagerCallback cb = mKeyguardListener; |
| if (cb != null) { |
| try { |
| cb.onWallpaperChanged(); |
| } catch (RemoteException e) { |
| // Oh well it went away; no big deal |
| } |
| } |
| } |
| saveSettingsLocked(wallpaper.userId); |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| /** |
| * Once a new wallpaper has been written via setWallpaper(...), it needs to be cropped |
| * for display. |
| */ |
| private void generateCrop(WallpaperData wallpaper) { |
| boolean success = false; |
| boolean needCrop = false; |
| boolean needScale = false; |
| |
| if (DEBUG) { |
| Slog.v(TAG, "Generating crop for new wallpaper(s): 0x" |
| + Integer.toHexString(wallpaper.whichPending) |
| + " to " + wallpaper.cropFile.getName()); |
| } |
| |
| // Analyse the source; needed in multiple cases |
| BitmapFactory.Options options = new BitmapFactory.Options(); |
| options.inJustDecodeBounds = true; |
| BitmapFactory.decodeFile(wallpaper.wallpaperFile.getAbsolutePath(), options); |
| |
| // We'll need to scale if the crop is sufficiently bigger than the display |
| |
| // Legacy case uses an empty crop rect here, so we just preserve the |
| // source image verbatim |
| if (!wallpaper.cropHint.isEmpty()) { |
| // ...clamp the crop rect to the measured bounds... |
| wallpaper.cropHint.right = Math.min(wallpaper.cropHint.right, options.outWidth); |
| wallpaper.cropHint.bottom = Math.min(wallpaper.cropHint.bottom, options.outHeight); |
| // ...and don't bother cropping if what we're left with is identity |
| needCrop = (options.outHeight >= wallpaper.cropHint.height() |
| && options.outWidth >= wallpaper.cropHint.width()); |
| } |
| |
| if (!needCrop && !needScale) { |
| // Simple case: the nominal crop is at least as big as the source image, |
| // so we take the whole thing and just copy the image file directly. |
| if (DEBUG) { |
| Slog.v(TAG, "Null crop of new wallpaper; copying"); |
| } |
| success = FileUtils.copyFile(wallpaper.wallpaperFile, wallpaper.cropFile); |
| if (!success) { |
| wallpaper.cropFile.delete(); |
| // TODO: fall back to default wallpaper in this case |
| } |
| } else { |
| // Fancy case: crop and/or scale |
| FileOutputStream f = null; |
| BufferedOutputStream bos = null; |
| try { |
| BitmapRegionDecoder decoder = BitmapRegionDecoder.newInstance( |
| wallpaper.wallpaperFile.getAbsolutePath(), false); |
| Bitmap cropped = decoder.decodeRegion(wallpaper.cropHint, null); |
| decoder.recycle(); |
| |
| if (cropped == null) { |
| Slog.e(TAG, "Could not decode new wallpaper"); |
| } else { |
| f = new FileOutputStream(wallpaper.cropFile); |
| bos = new BufferedOutputStream(f, 32*1024); |
| cropped.compress(Bitmap.CompressFormat.PNG, 90, bos); |
| bos.flush(); // don't rely on the implicit flush-at-close when noting success |
| success = true; |
| } |
| } catch (IOException e) { |
| if (DEBUG) { |
| Slog.e(TAG, "I/O error decoding crop: " + e.getMessage()); |
| } |
| } finally { |
| IoUtils.closeQuietly(bos); |
| IoUtils.closeQuietly(f); |
| } |
| } |
| |
| if (!success) { |
| Slog.e(TAG, "Unable to apply new wallpaper"); |
| wallpaper.cropFile.delete(); |
| } |
| |
| if (wallpaper.cropFile.exists()) { |
| boolean didRestorecon = SELinux.restorecon(wallpaper.cropFile.getAbsoluteFile()); |
| if (DEBUG) { |
| Slog.v(TAG, "restorecon() of crop file returned " + didRestorecon); |
| } |
| } |
| } |
| |
| final Context mContext; |
| final IWindowManager mIWindowManager; |
| final IPackageManager mIPackageManager; |
| final MyPackageMonitor mMonitor; |
| final AppOpsManager mAppOpsManager; |
| WallpaperData mLastWallpaper; |
| IWallpaperManagerCallback mKeyguardListener; |
| |
| /** |
| * ID of the current wallpaper, changed every time anything sets a wallpaper. |
| * This is used for external detection of wallpaper update activity. |
| */ |
| int mWallpaperId; |
| |
| /** |
| * Name of the component used to display bitmap wallpapers from either the gallery or |
| * built-in wallpapers. |
| */ |
| final ComponentName mImageWallpaper; |
| |
| final SparseArray<WallpaperData> mWallpaperMap = new SparseArray<WallpaperData>(); |
| final SparseArray<WallpaperData> mLockWallpaperMap = new SparseArray<WallpaperData>(); |
| |
| int mCurrentUserId; |
| |
| static class WallpaperData { |
| |
| int userId; |
| |
| final File wallpaperFile; // source image |
| final File cropFile; // eventual destination |
| |
| /** |
| * True while the client is writing a new wallpaper |
| */ |
| boolean imageWallpaperPending; |
| |
| /** |
| * Which new wallpapers are being written; mirrors the 'which' |
| * selector bit field to setWallpaper(). |
| */ |
| int whichPending; |
| |
| /** |
| * Callback once the set + crop is finished |
| */ |
| IWallpaperManagerCallback setComplete; |
| |
| /** |
| * Resource name if using a picture from the wallpaper gallery |
| */ |
| String name = ""; |
| |
| /** |
| * The component name of the currently set live wallpaper. |
| */ |
| ComponentName wallpaperComponent; |
| |
| /** |
| * The component name of the wallpaper that should be set next. |
| */ |
| ComponentName nextWallpaperComponent; |
| |
| /** |
| * The ID of this wallpaper |
| */ |
| int wallpaperId; |
| |
| WallpaperConnection connection; |
| long lastDiedTime; |
| boolean wallpaperUpdating; |
| WallpaperObserver wallpaperObserver; |
| |
| /** |
| * List of callbacks registered they should each be notified when the wallpaper is changed. |
| */ |
| private RemoteCallbackList<IWallpaperManagerCallback> callbacks |
| = new RemoteCallbackList<IWallpaperManagerCallback>(); |
| |
| int width = -1; |
| int height = -1; |
| |
| /** |
| * The crop hint supplied for displaying a subset of the source image |
| */ |
| final Rect cropHint = new Rect(0, 0, 0, 0); |
| |
| final Rect padding = new Rect(0, 0, 0, 0); |
| |
| WallpaperData(int userId, String inputFileName, String cropFileName) { |
| this.userId = userId; |
| final File wallpaperDir = getWallpaperDir(userId); |
| wallpaperFile = new File(wallpaperDir, inputFileName); |
| cropFile = new File(wallpaperDir, cropFileName); |
| } |
| |
| // Called during initialization of a given user's wallpaper bookkeeping |
| boolean cropExists() { |
| return cropFile.exists(); |
| } |
| } |
| |
| int makeWallpaperIdLocked() { |
| do { |
| ++mWallpaperId; |
| } while (mWallpaperId == 0); |
| return mWallpaperId; |
| } |
| |
| class WallpaperConnection extends IWallpaperConnection.Stub |
| implements ServiceConnection { |
| final WallpaperInfo mInfo; |
| final Binder mToken = new Binder(); |
| IWallpaperService mService; |
| IWallpaperEngine mEngine; |
| WallpaperData mWallpaper; |
| IRemoteCallback mReply; |
| |
| boolean mDimensionsChanged = false; |
| boolean mPaddingChanged = false; |
| |
| public WallpaperConnection(WallpaperInfo info, WallpaperData wallpaper) { |
| mInfo = info; |
| mWallpaper = wallpaper; |
| } |
| |
| @Override |
| public void onServiceConnected(ComponentName name, IBinder service) { |
| synchronized (mLock) { |
| if (mWallpaper.connection == this) { |
| mService = IWallpaperService.Stub.asInterface(service); |
| attachServiceLocked(this, mWallpaper); |
| // XXX should probably do saveSettingsLocked() later |
| // when we have an engine, but I'm not sure about |
| // locking there and anyway we always need to be able to |
| // recover if there is something wrong. |
| saveSettingsLocked(mWallpaper.userId); |
| } |
| } |
| } |
| |
| @Override |
| public void onServiceDisconnected(ComponentName name) { |
| synchronized (mLock) { |
| mService = null; |
| mEngine = null; |
| if (mWallpaper.connection == this) { |
| Slog.w(TAG, "Wallpaper service gone: " + mWallpaper.wallpaperComponent); |
| if (!mWallpaper.wallpaperUpdating |
| && mWallpaper.userId == mCurrentUserId) { |
| // There is a race condition which causes |
| // {@link #mWallpaper.wallpaperUpdating} to be false even if it is |
| // currently updating since the broadcast notifying us is async. |
| // This race is overcome by the general rule that we only reset the |
| // wallpaper if its service was shut down twice |
| // during {@link #MIN_WALLPAPER_CRASH_TIME} millis. |
| if (mWallpaper.lastDiedTime != 0 |
| && mWallpaper.lastDiedTime + MIN_WALLPAPER_CRASH_TIME |
| > SystemClock.uptimeMillis()) { |
| Slog.w(TAG, "Reverting to built-in wallpaper!"); |
| clearWallpaperLocked(true, FLAG_SYSTEM, mWallpaper.userId, null); |
| } else { |
| mWallpaper.lastDiedTime = SystemClock.uptimeMillis(); |
| } |
| final String flattened = name.flattenToString(); |
| EventLog.writeEvent(EventLogTags.WP_WALLPAPER_CRASHED, |
| flattened.substring(0, Math.min(flattened.length(), |
| MAX_WALLPAPER_COMPONENT_LOG_LENGTH))); |
| } |
| } |
| } |
| } |
| |
| @Override |
| public void attachEngine(IWallpaperEngine engine) { |
| synchronized (mLock) { |
| mEngine = engine; |
| if (mDimensionsChanged) { |
| try { |
| mEngine.setDesiredSize(mWallpaper.width, mWallpaper.height); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failed to set wallpaper dimensions", e); |
| } |
| mDimensionsChanged = false; |
| } |
| if (mPaddingChanged) { |
| try { |
| mEngine.setDisplayPadding(mWallpaper.padding); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failed to set wallpaper padding", e); |
| } |
| mPaddingChanged = false; |
| } |
| } |
| } |
| |
| @Override |
| public void engineShown(IWallpaperEngine engine) { |
| synchronized (mLock) { |
| if (mReply != null) { |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| mReply.sendResult(null); |
| } catch (RemoteException e) { |
| Binder.restoreCallingIdentity(ident); |
| } |
| mReply = null; |
| } |
| } |
| } |
| |
| @Override |
| public ParcelFileDescriptor setWallpaper(String name) { |
| synchronized (mLock) { |
| if (mWallpaper.connection == this) { |
| return updateWallpaperBitmapLocked(name, mWallpaper, null); |
| } |
| return null; |
| } |
| } |
| } |
| |
| class MyPackageMonitor extends PackageMonitor { |
| @Override |
| public void onPackageUpdateFinished(String packageName, int uid) { |
| synchronized (mLock) { |
| if (mCurrentUserId != getChangingUserId()) { |
| return; |
| } |
| WallpaperData wallpaper = mWallpaperMap.get(mCurrentUserId); |
| if (wallpaper != null) { |
| if (wallpaper.wallpaperComponent != null |
| && wallpaper.wallpaperComponent.getPackageName().equals(packageName)) { |
| wallpaper.wallpaperUpdating = false; |
| ComponentName comp = wallpaper.wallpaperComponent; |
| clearWallpaperComponentLocked(wallpaper); |
| if (!bindWallpaperComponentLocked(comp, false, false, |
| wallpaper, null)) { |
| Slog.w(TAG, "Wallpaper no longer available; reverting to default"); |
| clearWallpaperLocked(false, FLAG_SYSTEM, wallpaper.userId, null); |
| } |
| } |
| } |
| } |
| } |
| |
| @Override |
| public void onPackageModified(String packageName) { |
| synchronized (mLock) { |
| if (mCurrentUserId != getChangingUserId()) { |
| return; |
| } |
| WallpaperData wallpaper = mWallpaperMap.get(mCurrentUserId); |
| if (wallpaper != null) { |
| if (wallpaper.wallpaperComponent == null |
| || !wallpaper.wallpaperComponent.getPackageName().equals(packageName)) { |
| return; |
| } |
| doPackagesChangedLocked(true, wallpaper); |
| } |
| } |
| } |
| |
| @Override |
| public void onPackageUpdateStarted(String packageName, int uid) { |
| synchronized (mLock) { |
| if (mCurrentUserId != getChangingUserId()) { |
| return; |
| } |
| WallpaperData wallpaper = mWallpaperMap.get(mCurrentUserId); |
| if (wallpaper != null) { |
| if (wallpaper.wallpaperComponent != null |
| && wallpaper.wallpaperComponent.getPackageName().equals(packageName)) { |
| wallpaper.wallpaperUpdating = true; |
| } |
| } |
| } |
| } |
| |
| @Override |
| public boolean onHandleForceStop(Intent intent, String[] packages, int uid, boolean doit) { |
| synchronized (mLock) { |
| boolean changed = false; |
| if (mCurrentUserId != getChangingUserId()) { |
| return false; |
| } |
| WallpaperData wallpaper = mWallpaperMap.get(mCurrentUserId); |
| if (wallpaper != null) { |
| boolean res = doPackagesChangedLocked(doit, wallpaper); |
| changed |= res; |
| } |
| return changed; |
| } |
| } |
| |
| @Override |
| public void onSomePackagesChanged() { |
| synchronized (mLock) { |
| if (mCurrentUserId != getChangingUserId()) { |
| return; |
| } |
| WallpaperData wallpaper = mWallpaperMap.get(mCurrentUserId); |
| if (wallpaper != null) { |
| doPackagesChangedLocked(true, wallpaper); |
| } |
| } |
| } |
| |
| boolean doPackagesChangedLocked(boolean doit, WallpaperData wallpaper) { |
| boolean changed = false; |
| if (wallpaper.wallpaperComponent != null) { |
| int change = isPackageDisappearing(wallpaper.wallpaperComponent |
| .getPackageName()); |
| if (change == PACKAGE_PERMANENT_CHANGE |
| || change == PACKAGE_TEMPORARY_CHANGE) { |
| changed = true; |
| if (doit) { |
| Slog.w(TAG, "Wallpaper uninstalled, removing: " |
| + wallpaper.wallpaperComponent); |
| clearWallpaperLocked(false, FLAG_SYSTEM, wallpaper.userId, null); |
| } |
| } |
| } |
| if (wallpaper.nextWallpaperComponent != null) { |
| int change = isPackageDisappearing(wallpaper.nextWallpaperComponent |
| .getPackageName()); |
| if (change == PACKAGE_PERMANENT_CHANGE |
| || change == PACKAGE_TEMPORARY_CHANGE) { |
| wallpaper.nextWallpaperComponent = null; |
| } |
| } |
| if (wallpaper.wallpaperComponent != null |
| && isPackageModified(wallpaper.wallpaperComponent.getPackageName())) { |
| try { |
| mContext.getPackageManager().getServiceInfo( |
| wallpaper.wallpaperComponent, 0); |
| } catch (NameNotFoundException e) { |
| Slog.w(TAG, "Wallpaper component gone, removing: " |
| + wallpaper.wallpaperComponent); |
| clearWallpaperLocked(false, FLAG_SYSTEM, wallpaper.userId, null); |
| } |
| } |
| if (wallpaper.nextWallpaperComponent != null |
| && isPackageModified(wallpaper.nextWallpaperComponent.getPackageName())) { |
| try { |
| mContext.getPackageManager().getServiceInfo( |
| wallpaper.nextWallpaperComponent, 0); |
| } catch (NameNotFoundException e) { |
| wallpaper.nextWallpaperComponent = null; |
| } |
| } |
| return changed; |
| } |
| } |
| |
| public WallpaperManagerService(Context context) { |
| if (DEBUG) Slog.v(TAG, "WallpaperService startup"); |
| mContext = context; |
| mImageWallpaper = ComponentName.unflattenFromString( |
| context.getResources().getString(R.string.image_wallpaper_component)); |
| mIWindowManager = IWindowManager.Stub.asInterface( |
| ServiceManager.getService(Context.WINDOW_SERVICE)); |
| mIPackageManager = AppGlobals.getPackageManager(); |
| mAppOpsManager = (AppOpsManager) mContext.getSystemService(Context.APP_OPS_SERVICE); |
| mMonitor = new MyPackageMonitor(); |
| mMonitor.register(context, null, UserHandle.ALL, true); |
| getWallpaperDir(UserHandle.USER_SYSTEM).mkdirs(); |
| loadSettingsLocked(UserHandle.USER_SYSTEM); |
| } |
| |
| private static File getWallpaperDir(int userId) { |
| return Environment.getUserSystemDirectory(userId); |
| } |
| |
| @Override |
| protected void finalize() throws Throwable { |
| super.finalize(); |
| for (int i = 0; i < mWallpaperMap.size(); i++) { |
| WallpaperData wallpaper = mWallpaperMap.valueAt(i); |
| wallpaper.wallpaperObserver.stopWatching(); |
| } |
| } |
| |
| public void systemRunning() { |
| if (DEBUG) Slog.v(TAG, "systemReady"); |
| WallpaperData wallpaper = mWallpaperMap.get(UserHandle.USER_SYSTEM); |
| // If we think we're going to be using the system image wallpaper imagery, make |
| // sure we have something to render |
| if (mImageWallpaper.equals(wallpaper.nextWallpaperComponent)) { |
| // No crop file? Make sure we've finished the processing sequence if necessary |
| if (!wallpaper.cropExists()) { |
| if (DEBUG) { |
| Slog.i(TAG, "No crop; regenerating from source"); |
| } |
| generateCrop(wallpaper); |
| } |
| // Still nothing? Fall back to default. |
| if (!wallpaper.cropExists()) { |
| if (DEBUG) { |
| Slog.i(TAG, "Unable to regenerate crop; resetting"); |
| } |
| clearWallpaperLocked(false, FLAG_SYSTEM, UserHandle.USER_SYSTEM, null); |
| } |
| } else { |
| if (DEBUG) { |
| Slog.i(TAG, "Nondefault wallpaper component; gracefully ignoring"); |
| } |
| } |
| switchWallpaper(wallpaper, null); |
| wallpaper.wallpaperObserver = new WallpaperObserver(wallpaper); |
| wallpaper.wallpaperObserver.startWatching(); |
| |
| IntentFilter userFilter = new IntentFilter(); |
| userFilter.addAction(Intent.ACTION_USER_REMOVED); |
| userFilter.addAction(Intent.ACTION_USER_STOPPING); |
| mContext.registerReceiver(new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| String action = intent.getAction(); |
| if (Intent.ACTION_USER_REMOVED.equals(action)) { |
| onRemoveUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, |
| UserHandle.USER_NULL)); |
| } |
| // TODO: Race condition causing problems when cleaning up on stopping a user. |
| // Comment this out for now. |
| // else if (Intent.ACTION_USER_STOPPING.equals(action)) { |
| // onStoppingUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, |
| // UserHandle.USER_NULL)); |
| // } |
| } |
| }, userFilter); |
| |
| try { |
| ActivityManagerNative.getDefault().registerUserSwitchObserver( |
| new IUserSwitchObserver.Stub() { |
| @Override |
| public void onUserSwitching(int newUserId, IRemoteCallback reply) { |
| switchUser(newUserId, reply); |
| } |
| |
| @Override |
| public void onUserSwitchComplete(int newUserId) throws RemoteException { |
| } |
| |
| @Override |
| public void onForegroundProfileSwitch(int newProfileId) { |
| // Ignore. |
| } |
| }); |
| } catch (RemoteException e) { |
| // TODO Auto-generated catch block |
| e.printStackTrace(); |
| } |
| } |
| |
| /** Called by SystemBackupAgent */ |
| public String getName() { |
| // Verify caller is the system |
| if (Binder.getCallingUid() != android.os.Process.SYSTEM_UID) { |
| throw new RuntimeException("getName() can only be called from the system process"); |
| } |
| synchronized (mLock) { |
| return mWallpaperMap.get(0).name; |
| } |
| } |
| |
| void stopObserver(WallpaperData wallpaper) { |
| if (wallpaper != null) { |
| if (wallpaper.wallpaperObserver != null) { |
| wallpaper.wallpaperObserver.stopWatching(); |
| wallpaper.wallpaperObserver = null; |
| } |
| } |
| } |
| |
| void stopObserversLocked(int userId) { |
| stopObserver(mWallpaperMap.get(userId)); |
| stopObserver(mLockWallpaperMap.get(userId)); |
| mWallpaperMap.remove(userId); |
| mLockWallpaperMap.remove(userId); |
| } |
| |
| void onRemoveUser(int userId) { |
| if (userId < 1) return; |
| |
| final File wallpaperDir = getWallpaperDir(userId); |
| synchronized (mLock) { |
| stopObserversLocked(userId); |
| for (String filename : sPerUserFiles) { |
| new File(wallpaperDir, filename).delete(); |
| } |
| } |
| } |
| |
| void switchUser(int userId, IRemoteCallback reply) { |
| synchronized (mLock) { |
| mCurrentUserId = userId; |
| WallpaperData wallpaper = getWallpaperSafeLocked(userId, FLAG_SYSTEM); |
| // Not started watching yet, in case wallpaper data was loaded for other reasons. |
| if (wallpaper.wallpaperObserver == null) { |
| wallpaper.wallpaperObserver = new WallpaperObserver(wallpaper); |
| wallpaper.wallpaperObserver.startWatching(); |
| } |
| switchWallpaper(wallpaper, reply); |
| } |
| } |
| |
| void switchWallpaper(WallpaperData wallpaper, IRemoteCallback reply) { |
| synchronized (mLock) { |
| RuntimeException e = null; |
| try { |
| ComponentName cname = wallpaper.wallpaperComponent != null ? |
| wallpaper.wallpaperComponent : wallpaper.nextWallpaperComponent; |
| if (bindWallpaperComponentLocked(cname, true, false, wallpaper, reply)) { |
| return; |
| } |
| } catch (RuntimeException e1) { |
| e = e1; |
| } |
| Slog.w(TAG, "Failure starting previous wallpaper", e); |
| clearWallpaperLocked(false, FLAG_SYSTEM, wallpaper.userId, reply); |
| } |
| } |
| |
| @Override |
| public void clearWallpaper(String callingPackage, int which, int userId) { |
| if (DEBUG) Slog.v(TAG, "clearWallpaper"); |
| checkPermission(android.Manifest.permission.SET_WALLPAPER); |
| if (!isWallpaperSupported(callingPackage) || !isWallpaperSettingAllowed(callingPackage)) { |
| return; |
| } |
| userId = ActivityManager.handleIncomingUser(Binder.getCallingPid(), |
| Binder.getCallingUid(), userId, false, true, "clearWallpaper", null); |
| |
| synchronized (mLock) { |
| clearWallpaperLocked(false, which, userId, null); |
| } |
| } |
| |
| void clearWallpaperLocked(boolean defaultFailed, int which, int userId, IRemoteCallback reply) { |
| if (which != FLAG_SYSTEM && which != FLAG_LOCK) { |
| throw new IllegalArgumentException("Must specify exactly one kind of wallpaper to read"); |
| } |
| |
| WallpaperData wallpaper = null; |
| if (which == FLAG_LOCK) { |
| wallpaper = mLockWallpaperMap.get(userId); |
| if (wallpaper == null) { |
| // It's already gone; we're done. |
| if (DEBUG) { |
| Slog.i(TAG, "Lock wallpaper already cleared"); |
| } |
| return; |
| } |
| } else { |
| wallpaper = mWallpaperMap.get(userId); |
| if (wallpaper == null) { |
| // Might need to bring it in the first time to establish our rewrite |
| loadSettingsLocked(userId); |
| wallpaper = mWallpaperMap.get(userId); |
| } |
| } |
| if (wallpaper == null) { |
| return; |
| } |
| |
| final long ident = Binder.clearCallingIdentity(); |
| try { |
| if (wallpaper.wallpaperFile.exists()) { |
| wallpaper.wallpaperFile.delete(); |
| wallpaper.cropFile.delete(); |
| if (which == FLAG_LOCK) { |
| mLockWallpaperMap.remove(userId); |
| final IWallpaperManagerCallback cb = mKeyguardListener; |
| if (cb != null) { |
| if (DEBUG) { |
| Slog.i(TAG, "Notifying keyguard of lock wallpaper clear"); |
| } |
| try { |
| cb.onWallpaperChanged(); |
| } catch (RemoteException e) { |
| // Oh well it went away; no big deal |
| } |
| } |
| saveSettingsLocked(userId); |
| return; |
| } |
| } |
| |
| RuntimeException e = null; |
| try { |
| wallpaper.imageWallpaperPending = false; |
| if (userId != mCurrentUserId) return; |
| if (bindWallpaperComponentLocked(defaultFailed |
| ? mImageWallpaper |
| : null, true, false, wallpaper, reply)) { |
| return; |
| } |
| } catch (IllegalArgumentException e1) { |
| e = e1; |
| } |
| |
| // This can happen if the default wallpaper component doesn't |
| // exist. This should be a system configuration problem, but |
| // let's not let it crash the system and just live with no |
| // wallpaper. |
| Slog.e(TAG, "Default wallpaper component not found!", e); |
| clearWallpaperComponentLocked(wallpaper); |
| if (reply != null) { |
| try { |
| reply.sendResult(null); |
| } catch (RemoteException e1) { |
| } |
| } |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| public boolean hasNamedWallpaper(String name) { |
| synchronized (mLock) { |
| List<UserInfo> users; |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| users = ((UserManager) mContext.getSystemService(Context.USER_SERVICE)).getUsers(); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| for (UserInfo user: users) { |
| // ignore managed profiles |
| if (user.isManagedProfile()) { |
| continue; |
| } |
| WallpaperData wd = mWallpaperMap.get(user.id); |
| if (wd == null) { |
| // User hasn't started yet, so load her settings to peek at the wallpaper |
| loadSettingsLocked(user.id); |
| wd = mWallpaperMap.get(user.id); |
| } |
| if (wd != null && name.equals(wd.name)) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| private Point getDefaultDisplaySize() { |
| Point p = new Point(); |
| WindowManager wm = (WindowManager)mContext.getSystemService(Context.WINDOW_SERVICE); |
| Display d = wm.getDefaultDisplay(); |
| d.getRealSize(p); |
| return p; |
| } |
| |
| public void setDimensionHints(int width, int height, String callingPackage) |
| throws RemoteException { |
| checkPermission(android.Manifest.permission.SET_WALLPAPER_HINTS); |
| if (!isWallpaperSupported(callingPackage)) { |
| return; |
| } |
| synchronized (mLock) { |
| int userId = UserHandle.getCallingUserId(); |
| WallpaperData wallpaper = getWallpaperSafeLocked(userId, FLAG_SYSTEM); |
| if (width <= 0 || height <= 0) { |
| throw new IllegalArgumentException("width and height must be > 0"); |
| } |
| // Make sure it is at least as large as the display. |
| Point displaySize = getDefaultDisplaySize(); |
| width = Math.max(width, displaySize.x); |
| height = Math.max(height, displaySize.y); |
| |
| if (width != wallpaper.width || height != wallpaper.height) { |
| wallpaper.width = width; |
| wallpaper.height = height; |
| saveSettingsLocked(userId); |
| if (mCurrentUserId != userId) return; // Don't change the properties now |
| if (wallpaper.connection != null) { |
| if (wallpaper.connection.mEngine != null) { |
| try { |
| wallpaper.connection.mEngine.setDesiredSize( |
| width, height); |
| } catch (RemoteException e) { |
| } |
| notifyCallbacksLocked(wallpaper); |
| } else if (wallpaper.connection.mService != null) { |
| // We've attached to the service but the engine hasn't attached back to us |
| // yet. This means it will be created with the previous dimensions, so we |
| // need to update it to the new dimensions once it attaches. |
| wallpaper.connection.mDimensionsChanged = true; |
| } |
| } |
| } |
| } |
| } |
| |
| public int getWidthHint() throws RemoteException { |
| synchronized (mLock) { |
| WallpaperData wallpaper = mWallpaperMap.get(UserHandle.getCallingUserId()); |
| if (wallpaper != null) { |
| return wallpaper.width; |
| } else { |
| return 0; |
| } |
| } |
| } |
| |
| public int getHeightHint() throws RemoteException { |
| synchronized (mLock) { |
| WallpaperData wallpaper = mWallpaperMap.get(UserHandle.getCallingUserId()); |
| if (wallpaper != null) { |
| return wallpaper.height; |
| } else { |
| return 0; |
| } |
| } |
| } |
| |
| public void setDisplayPadding(Rect padding, String callingPackage) { |
| checkPermission(android.Manifest.permission.SET_WALLPAPER_HINTS); |
| if (!isWallpaperSupported(callingPackage)) { |
| return; |
| } |
| synchronized (mLock) { |
| int userId = UserHandle.getCallingUserId(); |
| WallpaperData wallpaper = getWallpaperSafeLocked(userId, FLAG_SYSTEM); |
| if (padding.left < 0 || padding.top < 0 || padding.right < 0 || padding.bottom < 0) { |
| throw new IllegalArgumentException("padding must be positive: " + padding); |
| } |
| |
| if (!padding.equals(wallpaper.padding)) { |
| wallpaper.padding.set(padding); |
| saveSettingsLocked(userId); |
| if (mCurrentUserId != userId) return; // Don't change the properties now |
| if (wallpaper.connection != null) { |
| if (wallpaper.connection.mEngine != null) { |
| try { |
| wallpaper.connection.mEngine.setDisplayPadding(padding); |
| } catch (RemoteException e) { |
| } |
| notifyCallbacksLocked(wallpaper); |
| } else if (wallpaper.connection.mService != null) { |
| // We've attached to the service but the engine hasn't attached back to us |
| // yet. This means it will be created with the previous dimensions, so we |
| // need to update it to the new dimensions once it attaches. |
| wallpaper.connection.mPaddingChanged = true; |
| } |
| } |
| } |
| } |
| } |
| |
| @Override |
| public ParcelFileDescriptor getWallpaper(IWallpaperManagerCallback cb, final int which, |
| Bundle outParams, int wallpaperUserId) { |
| wallpaperUserId = ActivityManager.handleIncomingUser(Binder.getCallingPid(), |
| Binder.getCallingUid(), wallpaperUserId, false, true, "getWallpaper", null); |
| |
| if (which != FLAG_SYSTEM && which != FLAG_LOCK) { |
| throw new IllegalArgumentException("Must specify exactly one kind of wallpaper to read"); |
| } |
| |
| synchronized (mLock) { |
| final SparseArray<WallpaperData> whichSet = |
| (which == FLAG_LOCK) ? mLockWallpaperMap : mWallpaperMap; |
| WallpaperData wallpaper = whichSet.get(wallpaperUserId); |
| if (wallpaper == null) { |
| // common case, this is the first lookup post-boot of the system or |
| // unified lock, so we bring up the saved state lazily now and recheck. |
| loadSettingsLocked(wallpaperUserId); |
| wallpaper = whichSet.get(wallpaperUserId); |
| if (wallpaper == null) { |
| return null; |
| } |
| } |
| try { |
| if (outParams != null) { |
| outParams.putInt("width", wallpaper.width); |
| outParams.putInt("height", wallpaper.height); |
| } |
| if (cb != null) { |
| wallpaper.callbacks.register(cb); |
| } |
| if (!wallpaper.cropFile.exists()) { |
| return null; |
| } |
| return ParcelFileDescriptor.open(wallpaper.cropFile, MODE_READ_ONLY); |
| } catch (FileNotFoundException e) { |
| /* Shouldn't happen as we check to see if the file exists */ |
| Slog.w(TAG, "Error getting wallpaper", e); |
| } |
| return null; |
| } |
| } |
| |
| @Override |
| public WallpaperInfo getWallpaperInfo() { |
| int userId = UserHandle.getCallingUserId(); |
| synchronized (mLock) { |
| WallpaperData wallpaper = mWallpaperMap.get(userId); |
| if (wallpaper != null && wallpaper.connection != null) { |
| return wallpaper.connection.mInfo; |
| } |
| return null; |
| } |
| } |
| |
| @Override |
| public int getWallpaperIdForUser(int which, int userId) { |
| userId = ActivityManager.handleIncomingUser(Binder.getCallingPid(), |
| Binder.getCallingUid(), userId, false, true, "getWallpaperIdForUser", null); |
| |
| if (which != FLAG_SYSTEM && which != FLAG_LOCK) { |
| throw new IllegalArgumentException("Must specify exactly one kind of wallpaper"); |
| } |
| |
| final SparseArray<WallpaperData> map = |
| (which == FLAG_LOCK) ? mLockWallpaperMap : mWallpaperMap; |
| synchronized (mLock) { |
| WallpaperData wallpaper = map.get(userId); |
| if (wallpaper != null) { |
| return wallpaper.wallpaperId; |
| } |
| } |
| return -1; |
| } |
| |
| @Override |
| public boolean setLockWallpaperCallback(IWallpaperManagerCallback cb) { |
| checkPermission(android.Manifest.permission.INTERNAL_SYSTEM_WINDOW); |
| synchronized (mLock) { |
| mKeyguardListener = cb; |
| } |
| return true; |
| } |
| |
| @Override |
| public ParcelFileDescriptor setWallpaper(String name, String callingPackage, |
| Rect cropHint, Bundle extras, int which, IWallpaperManagerCallback completion) { |
| checkPermission(android.Manifest.permission.SET_WALLPAPER); |
| |
| if ((which & (FLAG_LOCK|FLAG_SYSTEM)) == 0) { |
| Slog.e(TAG, "Must specify a valid wallpaper category to set"); |
| return null; |
| } |
| |
| if (!isWallpaperSupported(callingPackage) || !isWallpaperSettingAllowed(callingPackage)) { |
| return null; |
| } |
| |
| // "null" means the no-op crop, preserving the full input image |
| if (cropHint == null) { |
| cropHint = new Rect(0, 0, 0, 0); |
| } else { |
| if (cropHint.isEmpty() |
| || cropHint.left < 0 |
| || cropHint.top < 0) { |
| return null; |
| } |
| } |
| |
| final int userId = UserHandle.getCallingUserId(); |
| |
| synchronized (mLock) { |
| if (DEBUG) Slog.v(TAG, "setWallpaper which=0x" + Integer.toHexString(which)); |
| WallpaperData wallpaper; |
| |
| wallpaper = getWallpaperSafeLocked(userId, which); |
| final long ident = Binder.clearCallingIdentity(); |
| try { |
| ParcelFileDescriptor pfd = updateWallpaperBitmapLocked(name, wallpaper, extras); |
| if (pfd != null) { |
| wallpaper.imageWallpaperPending = true; |
| wallpaper.whichPending = which; |
| wallpaper.setComplete = completion; |
| wallpaper.cropHint.set(cropHint); |
| } |
| return pfd; |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| } |
| |
| ParcelFileDescriptor updateWallpaperBitmapLocked(String name, WallpaperData wallpaper, |
| Bundle extras) { |
| if (name == null) name = ""; |
| try { |
| File dir = getWallpaperDir(wallpaper.userId); |
| if (!dir.exists()) { |
| dir.mkdir(); |
| FileUtils.setPermissions( |
| dir.getPath(), |
| FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, |
| -1, -1); |
| } |
| ParcelFileDescriptor fd = ParcelFileDescriptor.open(wallpaper.wallpaperFile, |
| MODE_CREATE|MODE_READ_WRITE|MODE_TRUNCATE); |
| if (!SELinux.restorecon(wallpaper.wallpaperFile)) { |
| return null; |
| } |
| wallpaper.name = name; |
| wallpaper.wallpaperId = makeWallpaperIdLocked(); |
| if (extras != null) { |
| extras.putInt(WallpaperManager.EXTRA_NEW_WALLPAPER_ID, wallpaper.wallpaperId); |
| } |
| if (DEBUG) { |
| Slog.v(TAG, "updateWallpaperBitmapLocked() : id=" + wallpaper.wallpaperId |
| + " name=" + name + " file=" + wallpaper.wallpaperFile.getName()); |
| } |
| return fd; |
| } catch (FileNotFoundException e) { |
| Slog.w(TAG, "Error setting wallpaper", e); |
| } |
| return null; |
| } |
| |
| @Override |
| public void setWallpaperComponentChecked(ComponentName name, String callingPackage) { |
| if (isWallpaperSupported(callingPackage) && isWallpaperSettingAllowed(callingPackage)) { |
| setWallpaperComponent(name); |
| } |
| } |
| |
| // ToDo: Remove this version of the function |
| @Override |
| public void setWallpaperComponent(ComponentName name) { |
| checkPermission(android.Manifest.permission.SET_WALLPAPER_COMPONENT); |
| synchronized (mLock) { |
| if (DEBUG) Slog.v(TAG, "setWallpaperComponent name=" + name); |
| int userId = UserHandle.getCallingUserId(); |
| WallpaperData wallpaper = mWallpaperMap.get(userId); |
| if (wallpaper == null) { |
| throw new IllegalStateException("Wallpaper not yet initialized for user " + userId); |
| } |
| final long ident = Binder.clearCallingIdentity(); |
| try { |
| wallpaper.imageWallpaperPending = false; |
| if (bindWallpaperComponentLocked(name, false, true, wallpaper, null)) { |
| wallpaper.wallpaperId = makeWallpaperIdLocked(); |
| notifyCallbacksLocked(wallpaper); |
| } |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| } |
| |
| boolean bindWallpaperComponentLocked(ComponentName componentName, boolean force, |
| boolean fromUser, WallpaperData wallpaper, IRemoteCallback reply) { |
| if (DEBUG) Slog.v(TAG, "bindWallpaperComponentLocked: componentName=" + componentName); |
| // Has the component changed? |
| if (!force) { |
| if (wallpaper.connection != null) { |
| if (wallpaper.wallpaperComponent == null) { |
| if (componentName == null) { |
| if (DEBUG) Slog.v(TAG, "bindWallpaperComponentLocked: still using default"); |
| // Still using default wallpaper. |
| return true; |
| } |
| } else if (wallpaper.wallpaperComponent.equals(componentName)) { |
| // Changing to same wallpaper. |
| if (DEBUG) Slog.v(TAG, "same wallpaper"); |
| return true; |
| } |
| } |
| } |
| |
| try { |
| if (componentName == null) { |
| componentName = WallpaperManager.getDefaultWallpaperComponent(mContext); |
| if (componentName == null) { |
| // Fall back to static image wallpaper |
| componentName = mImageWallpaper; |
| //clearWallpaperComponentLocked(); |
| //return; |
| if (DEBUG) Slog.v(TAG, "Using image wallpaper"); |
| } |
| } |
| int serviceUserId = wallpaper.userId; |
| ServiceInfo si = mIPackageManager.getServiceInfo(componentName, |
| PackageManager.GET_META_DATA | PackageManager.GET_PERMISSIONS, serviceUserId); |
| if (si == null) { |
| // The wallpaper component we're trying to use doesn't exist |
| Slog.w(TAG, "Attempted wallpaper " + componentName + " is unavailable"); |
| return false; |
| } |
| if (!android.Manifest.permission.BIND_WALLPAPER.equals(si.permission)) { |
| String msg = "Selected service does not require " |
| + android.Manifest.permission.BIND_WALLPAPER |
| + ": " + componentName; |
| if (fromUser) { |
| throw new SecurityException(msg); |
| } |
| Slog.w(TAG, msg); |
| return false; |
| } |
| |
| WallpaperInfo wi = null; |
| |
| Intent intent = new Intent(WallpaperService.SERVICE_INTERFACE); |
| if (componentName != null && !componentName.equals(mImageWallpaper)) { |
| // Make sure the selected service is actually a wallpaper service. |
| List<ResolveInfo> ris = |
| mIPackageManager.queryIntentServices(intent, |
| intent.resolveTypeIfNeeded(mContext.getContentResolver()), |
| PackageManager.GET_META_DATA, serviceUserId).getList(); |
| for (int i=0; i<ris.size(); i++) { |
| ServiceInfo rsi = ris.get(i).serviceInfo; |
| if (rsi.name.equals(si.name) && |
| rsi.packageName.equals(si.packageName)) { |
| try { |
| wi = new WallpaperInfo(mContext, ris.get(i)); |
| } catch (XmlPullParserException e) { |
| if (fromUser) { |
| throw new IllegalArgumentException(e); |
| } |
| Slog.w(TAG, e); |
| return false; |
| } catch (IOException e) { |
| if (fromUser) { |
| throw new IllegalArgumentException(e); |
| } |
| Slog.w(TAG, e); |
| return false; |
| } |
| break; |
| } |
| } |
| if (wi == null) { |
| String msg = "Selected service is not a wallpaper: " |
| + componentName; |
| if (fromUser) { |
| throw new SecurityException(msg); |
| } |
| Slog.w(TAG, msg); |
| return false; |
| } |
| } |
| |
| // Bind the service! |
| if (DEBUG) Slog.v(TAG, "Binding to:" + componentName); |
| WallpaperConnection newConn = new WallpaperConnection(wi, wallpaper); |
| intent.setComponent(componentName); |
| intent.putExtra(Intent.EXTRA_CLIENT_LABEL, |
| com.android.internal.R.string.wallpaper_binding_label); |
| intent.putExtra(Intent.EXTRA_CLIENT_INTENT, PendingIntent.getActivityAsUser( |
| mContext, 0, |
| Intent.createChooser(new Intent(Intent.ACTION_SET_WALLPAPER), |
| mContext.getText(com.android.internal.R.string.chooser_wallpaper)), |
| 0, null, new UserHandle(serviceUserId))); |
| if (!mContext.bindServiceAsUser(intent, newConn, |
| Context.BIND_AUTO_CREATE | Context.BIND_SHOWING_UI |
| | Context.BIND_FOREGROUND_SERVICE_WHILE_AWAKE, |
| new UserHandle(serviceUserId))) { |
| String msg = "Unable to bind service: " |
| + componentName; |
| if (fromUser) { |
| throw new IllegalArgumentException(msg); |
| } |
| Slog.w(TAG, msg); |
| return false; |
| } |
| if (wallpaper.userId == mCurrentUserId && mLastWallpaper != null) { |
| detachWallpaperLocked(mLastWallpaper); |
| } |
| wallpaper.wallpaperComponent = componentName; |
| wallpaper.connection = newConn; |
| newConn.mReply = reply; |
| try { |
| if (wallpaper.userId == mCurrentUserId) { |
| if (DEBUG) |
| Slog.v(TAG, "Adding window token: " + newConn.mToken); |
| mIWindowManager.addWindowToken(newConn.mToken, |
| WindowManager.LayoutParams.TYPE_WALLPAPER); |
| mLastWallpaper = wallpaper; |
| } |
| } catch (RemoteException e) { |
| } |
| } catch (RemoteException e) { |
| String msg = "Remote exception for " + componentName + "\n" + e; |
| if (fromUser) { |
| throw new IllegalArgumentException(msg); |
| } |
| Slog.w(TAG, msg); |
| return false; |
| } |
| return true; |
| } |
| |
| void detachWallpaperLocked(WallpaperData wallpaper) { |
| if (wallpaper.connection != null) { |
| if (wallpaper.connection.mReply != null) { |
| try { |
| wallpaper.connection.mReply.sendResult(null); |
| } catch (RemoteException e) { |
| } |
| wallpaper.connection.mReply = null; |
| } |
| if (wallpaper.connection.mEngine != null) { |
| try { |
| wallpaper.connection.mEngine.destroy(); |
| } catch (RemoteException e) { |
| } |
| } |
| mContext.unbindService(wallpaper.connection); |
| try { |
| if (DEBUG) |
| Slog.v(TAG, "Removing window token: " + wallpaper.connection.mToken); |
| mIWindowManager.removeWindowToken(wallpaper.connection.mToken); |
| } catch (RemoteException e) { |
| } |
| wallpaper.connection.mService = null; |
| wallpaper.connection.mEngine = null; |
| wallpaper.connection = null; |
| } |
| } |
| |
| void clearWallpaperComponentLocked(WallpaperData wallpaper) { |
| wallpaper.wallpaperComponent = null; |
| detachWallpaperLocked(wallpaper); |
| } |
| |
| void attachServiceLocked(WallpaperConnection conn, WallpaperData wallpaper) { |
| try { |
| conn.mService.attach(conn, conn.mToken, |
| WindowManager.LayoutParams.TYPE_WALLPAPER, false, |
| wallpaper.width, wallpaper.height, wallpaper.padding); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failed attaching wallpaper; clearing", e); |
| if (!wallpaper.wallpaperUpdating) { |
| bindWallpaperComponentLocked(null, false, false, wallpaper, null); |
| } |
| } |
| } |
| |
| private void notifyCallbacksLocked(WallpaperData wallpaper) { |
| final int n = wallpaper.callbacks.beginBroadcast(); |
| for (int i = 0; i < n; i++) { |
| try { |
| wallpaper.callbacks.getBroadcastItem(i).onWallpaperChanged(); |
| } catch (RemoteException e) { |
| |
| // The RemoteCallbackList will take care of removing |
| // the dead object for us. |
| } |
| } |
| wallpaper.callbacks.finishBroadcast(); |
| final Intent intent = new Intent(Intent.ACTION_WALLPAPER_CHANGED); |
| mContext.sendBroadcastAsUser(intent, new UserHandle(mCurrentUserId)); |
| } |
| |
| private void checkPermission(String permission) { |
| if (PackageManager.PERMISSION_GRANTED!= mContext.checkCallingOrSelfPermission(permission)) { |
| throw new SecurityException("Access denied to process: " + Binder.getCallingPid() |
| + ", must have permission " + permission); |
| } |
| } |
| |
| /** |
| * Certain user types do not support wallpapers (e.g. managed profiles). The check is |
| * implemented through through the OP_WRITE_WALLPAPER AppOp. |
| */ |
| public boolean isWallpaperSupported(String callingPackage) { |
| return mAppOpsManager.checkOpNoThrow(AppOpsManager.OP_WRITE_WALLPAPER, Binder.getCallingUid(), |
| callingPackage) == AppOpsManager.MODE_ALLOWED; |
| } |
| |
| @Override |
| public boolean isWallpaperSettingAllowed(String callingPackage) { |
| final PackageManager pm = mContext.getPackageManager(); |
| String[] uidPackages = pm.getPackagesForUid(Binder.getCallingUid()); |
| boolean uidMatchPackage = Arrays.asList(uidPackages).contains(callingPackage); |
| if (!uidMatchPackage) { |
| return false; // callingPackage was faked. |
| } |
| |
| final DevicePolicyManager dpm = mContext.getSystemService(DevicePolicyManager.class); |
| if (dpm.isDeviceOwnerApp(callingPackage) || dpm.isProfileOwnerApp(callingPackage)) { |
| return true; |
| } |
| final UserManager um = (UserManager) mContext.getSystemService(Context.USER_SERVICE); |
| return !um.hasUserRestriction(UserManager.DISALLOW_SET_WALLPAPER); |
| } |
| |
| private static JournaledFile makeJournaledFile(int userId) { |
| final String base = new File(getWallpaperDir(userId), WALLPAPER_INFO).getAbsolutePath(); |
| return new JournaledFile(new File(base), new File(base + ".tmp")); |
| } |
| |
| private void saveSettingsLocked(int userId) { |
| JournaledFile journal = makeJournaledFile(userId); |
| FileOutputStream fstream = null; |
| BufferedOutputStream stream = null; |
| try { |
| XmlSerializer out = new FastXmlSerializer(); |
| fstream = new FileOutputStream(journal.chooseForWrite(), false); |
| stream = new BufferedOutputStream(fstream); |
| out.setOutput(stream, StandardCharsets.UTF_8.name()); |
| out.startDocument(null, true); |
| |
| WallpaperData wallpaper; |
| |
| wallpaper = mWallpaperMap.get(userId); |
| if (wallpaper != null) { |
| writeWallpaperAttributes(out, "wp", wallpaper); |
| } |
| wallpaper = mLockWallpaperMap.get(userId); |
| if (wallpaper != null) { |
| writeWallpaperAttributes(out, "kwp", wallpaper); |
| } |
| |
| out.endDocument(); |
| |
| stream.flush(); // also flushes fstream |
| FileUtils.sync(fstream); |
| stream.close(); // also closes fstream |
| journal.commit(); |
| } catch (IOException e) { |
| IoUtils.closeQuietly(stream); |
| journal.rollback(); |
| } |
| } |
| |
| private void writeWallpaperAttributes(XmlSerializer out, String tag, WallpaperData wallpaper) |
| throws IllegalArgumentException, IllegalStateException, IOException { |
| out.startTag(null, tag); |
| out.attribute(null, "id", Integer.toString(wallpaper.wallpaperId)); |
| out.attribute(null, "width", Integer.toString(wallpaper.width)); |
| out.attribute(null, "height", Integer.toString(wallpaper.height)); |
| |
| out.attribute(null, "cropLeft", Integer.toString(wallpaper.cropHint.left)); |
| out.attribute(null, "cropTop", Integer.toString(wallpaper.cropHint.top)); |
| out.attribute(null, "cropRight", Integer.toString(wallpaper.cropHint.right)); |
| out.attribute(null, "cropBottom", Integer.toString(wallpaper.cropHint.bottom)); |
| |
| if (wallpaper.padding.left != 0) { |
| out.attribute(null, "paddingLeft", Integer.toString(wallpaper.padding.left)); |
| } |
| if (wallpaper.padding.top != 0) { |
| out.attribute(null, "paddingTop", Integer.toString(wallpaper.padding.top)); |
| } |
| if (wallpaper.padding.right != 0) { |
| out.attribute(null, "paddingRight", Integer.toString(wallpaper.padding.right)); |
| } |
| if (wallpaper.padding.bottom != 0) { |
| out.attribute(null, "paddingBottom", Integer.toString(wallpaper.padding.bottom)); |
| } |
| |
| out.attribute(null, "name", wallpaper.name); |
| if (wallpaper.wallpaperComponent != null |
| && !wallpaper.wallpaperComponent.equals(mImageWallpaper)) { |
| out.attribute(null, "component", |
| wallpaper.wallpaperComponent.flattenToShortString()); |
| } |
| out.endTag(null, tag); |
| } |
| |
| private void migrateFromOld() { |
| File oldWallpaper = new File(WallpaperBackupHelper.WALLPAPER_IMAGE_KEY); |
| File oldInfo = new File(WallpaperBackupHelper.WALLPAPER_INFO_KEY); |
| if (oldWallpaper.exists()) { |
| File newWallpaper = new File(getWallpaperDir(0), WALLPAPER); |
| oldWallpaper.renameTo(newWallpaper); |
| } |
| if (oldInfo.exists()) { |
| File newInfo = new File(getWallpaperDir(0), WALLPAPER_INFO); |
| oldInfo.renameTo(newInfo); |
| } |
| } |
| |
| private int getAttributeInt(XmlPullParser parser, String name, int defValue) { |
| String value = parser.getAttributeValue(null, name); |
| if (value == null) { |
| return defValue; |
| } |
| return Integer.parseInt(value); |
| } |
| |
| /** |
| * Sometimes it is expected the wallpaper map may not have a user's data. E.g. This could |
| * happen during user switch. The async user switch observer may not have received |
| * the event yet. We use this safe method when we don't care about this ordering and just |
| * want to update the data. The data is going to be applied when the user switch observer |
| * is eventually executed. |
| */ |
| private WallpaperData getWallpaperSafeLocked(int userId, int which) { |
| // We're setting either just system (work with the system wallpaper), |
| // both (also work with the system wallpaper), or just the lock |
| // wallpaper (update against the existing lock wallpaper if any). |
| // Combined or just-system operations use the 'system' WallpaperData |
| // for this use; lock-only operations use the dedicated one. |
| final SparseArray<WallpaperData> whichSet = |
| (which == FLAG_LOCK) ? mLockWallpaperMap : mWallpaperMap; |
| WallpaperData wallpaper = whichSet.get(userId); |
| if (wallpaper == null) { |
| // common case, this is the first lookup post-boot of the system or |
| // unified lock, so we bring up the saved state lazily now and recheck. |
| loadSettingsLocked(userId); |
| wallpaper = whichSet.get(userId); |
| // if it's still null here, this is a lock-only operation and there is not |
| // yet a lock-only wallpaper set for this user, so we need to establish |
| // it now. |
| if (wallpaper == null) { |
| if (which == FLAG_LOCK) { |
| wallpaper = new WallpaperData(userId, |
| WALLPAPER_LOCK_ORIG, WALLPAPER_LOCK_CROP); |
| mLockWallpaperMap.put(userId, wallpaper); |
| } else { |
| // sanity fallback: we're in bad shape, but establishing a known |
| // valid system+lock WallpaperData will keep us from dying. |
| Slog.wtf(TAG, "Didn't find wallpaper in non-lock case!"); |
| wallpaper = new WallpaperData(userId, WALLPAPER, WALLPAPER_CROP); |
| mWallpaperMap.put(userId, wallpaper); |
| } |
| } |
| } |
| return wallpaper; |
| } |
| |
| private void loadSettingsLocked(int userId) { |
| if (DEBUG) Slog.v(TAG, "loadSettingsLocked"); |
| |
| JournaledFile journal = makeJournaledFile(userId); |
| FileInputStream stream = null; |
| File file = journal.chooseForRead(); |
| if (!file.exists()) { |
| // This should only happen one time, when upgrading from a legacy system |
| migrateFromOld(); |
| } |
| WallpaperData wallpaper = mWallpaperMap.get(userId); |
| if (wallpaper == null) { |
| wallpaper = new WallpaperData(userId, WALLPAPER, WALLPAPER_CROP); |
| mWallpaperMap.put(userId, wallpaper); |
| if (!wallpaper.cropExists()) { |
| generateCrop(wallpaper); |
| } |
| } |
| boolean success = false; |
| try { |
| stream = new FileInputStream(file); |
| XmlPullParser parser = Xml.newPullParser(); |
| parser.setInput(stream, StandardCharsets.UTF_8.name()); |
| |
| int type; |
| do { |
| type = parser.next(); |
| if (type == XmlPullParser.START_TAG) { |
| String tag = parser.getName(); |
| if ("wp".equals(tag)) { |
| // Common to system + lock wallpapers |
| parseWallpaperAttributes(parser, wallpaper); |
| |
| // A system wallpaper might also be a live wallpaper |
| String comp = parser.getAttributeValue(null, "component"); |
| wallpaper.nextWallpaperComponent = comp != null |
| ? ComponentName.unflattenFromString(comp) |
| : null; |
| if (wallpaper.nextWallpaperComponent == null |
| || "android".equals(wallpaper.nextWallpaperComponent |
| .getPackageName())) { |
| wallpaper.nextWallpaperComponent = mImageWallpaper; |
| } |
| |
| if (DEBUG) { |
| Slog.v(TAG, "mWidth:" + wallpaper.width); |
| Slog.v(TAG, "mHeight:" + wallpaper.height); |
| Slog.v(TAG, "cropRect:" + wallpaper.cropHint); |
| Slog.v(TAG, "mName:" + wallpaper.name); |
| Slog.v(TAG, "mNextWallpaperComponent:" |
| + wallpaper.nextWallpaperComponent); |
| } |
| } else if ("kwp".equals(tag)) { |
| // keyguard-specific wallpaper for this user |
| WallpaperData lockWallpaper = mLockWallpaperMap.get(userId); |
| if (lockWallpaper == null) { |
| lockWallpaper = new WallpaperData(userId, |
| WALLPAPER_LOCK_ORIG, WALLPAPER_LOCK_CROP); |
| mLockWallpaperMap.put(userId, lockWallpaper); |
| } |
| parseWallpaperAttributes(parser, lockWallpaper); |
| } |
| } |
| } while (type != XmlPullParser.END_DOCUMENT); |
| success = true; |
| } catch (FileNotFoundException e) { |
| Slog.w(TAG, "no current wallpaper -- first boot?"); |
| } catch (NullPointerException e) { |
| Slog.w(TAG, "failed parsing " + file + " " + e); |
| } catch (NumberFormatException e) { |
| Slog.w(TAG, "failed parsing " + file + " " + e); |
| } catch (XmlPullParserException e) { |
| Slog.w(TAG, "failed parsing " + file + " " + e); |
| } catch (IOException e) { |
| Slog.w(TAG, "failed parsing " + file + " " + e); |
| } catch (IndexOutOfBoundsException e) { |
| Slog.w(TAG, "failed parsing " + file + " " + e); |
| } |
| IoUtils.closeQuietly(stream); |
| |
| if (!success) { |
| wallpaper.width = -1; |
| wallpaper.height = -1; |
| wallpaper.cropHint.set(0, 0, 0, 0); |
| wallpaper.padding.set(0, 0, 0, 0); |
| wallpaper.name = ""; |
| } else { |
| if (wallpaper.wallpaperId <= 0) { |
| wallpaper.wallpaperId = makeWallpaperIdLocked(); |
| if (DEBUG) { |
| Slog.w(TAG, "Didn't set wallpaper id in loadSettingsLocked(" + userId |
| + "); now " + wallpaper.wallpaperId); |
| } |
| } |
| } |
| |
| // We always want to have some reasonable width hint. |
| int baseSize = getMaximumSizeDimension(); |
| if (wallpaper.width < baseSize) { |
| wallpaper.width = baseSize; |
| } |
| if (wallpaper.height < baseSize) { |
| wallpaper.height = baseSize; |
| } |
| // and crop, if not previously specified |
| if (wallpaper.cropHint.width() <= 0 |
| || wallpaper.cropHint.height() <= 0) { |
| wallpaper.cropHint.set(0, 0, wallpaper.width, wallpaper.height); |
| } |
| } |
| |
| private void parseWallpaperAttributes(XmlPullParser parser, WallpaperData wallpaper) { |
| final String idString = parser.getAttributeValue(null, "id"); |
| if (idString != null) { |
| final int id = wallpaper.wallpaperId = Integer.parseInt(idString); |
| if (id > mWallpaperId) { |
| mWallpaperId = id; |
| } |
| } else { |
| wallpaper.wallpaperId = makeWallpaperIdLocked(); |
| } |
| |
| wallpaper.width = Integer.parseInt(parser.getAttributeValue(null, "width")); |
| wallpaper.height = Integer.parseInt(parser |
| .getAttributeValue(null, "height")); |
| wallpaper.cropHint.left = getAttributeInt(parser, "cropLeft", 0); |
| wallpaper.cropHint.top = getAttributeInt(parser, "cropTop", 0); |
| wallpaper.cropHint.right = getAttributeInt(parser, "cropRight", 0); |
| wallpaper.cropHint.bottom = getAttributeInt(parser, "cropBottom", 0); |
| wallpaper.padding.left = getAttributeInt(parser, "paddingLeft", 0); |
| wallpaper.padding.top = getAttributeInt(parser, "paddingTop", 0); |
| wallpaper.padding.right = getAttributeInt(parser, "paddingRight", 0); |
| wallpaper.padding.bottom = getAttributeInt(parser, "paddingBottom", 0); |
| wallpaper.name = parser.getAttributeValue(null, "name"); |
| } |
| |
| private int getMaximumSizeDimension() { |
| WindowManager wm = (WindowManager)mContext.getSystemService(Context.WINDOW_SERVICE); |
| Display d = wm.getDefaultDisplay(); |
| return d.getMaximumSizeDimension(); |
| } |
| |
| // Called by SystemBackupAgent after files are restored to disk. |
| public void settingsRestored() { |
| // Verify caller is the system |
| if (Binder.getCallingUid() != android.os.Process.SYSTEM_UID) { |
| throw new RuntimeException("settingsRestored() can only be called from the system process"); |
| } |
| // TODO: If necessary, make it work for secondary users as well. This currently assumes |
| // restores only to the primary user |
| if (DEBUG) Slog.v(TAG, "settingsRestored"); |
| WallpaperData wallpaper = null; |
| boolean success = false; |
| synchronized (mLock) { |
| loadSettingsLocked(UserHandle.USER_SYSTEM); |
| wallpaper = mWallpaperMap.get(UserHandle.USER_SYSTEM); |
| wallpaper.wallpaperId = makeWallpaperIdLocked(); // always bump id at restore |
| if (wallpaper.nextWallpaperComponent != null |
| && !wallpaper.nextWallpaperComponent.equals(mImageWallpaper)) { |
| if (!bindWallpaperComponentLocked(wallpaper.nextWallpaperComponent, false, false, |
| wallpaper, null)) { |
| // No such live wallpaper or other failure; fall back to the default |
| // live wallpaper (since the profile being restored indicated that the |
| // user had selected a live rather than static one). |
| bindWallpaperComponentLocked(null, false, false, wallpaper, null); |
| } |
| success = true; |
| } else { |
| // If there's a wallpaper name, we use that. If that can't be loaded, then we |
| // use the default. |
| if ("".equals(wallpaper.name)) { |
| if (DEBUG) Slog.v(TAG, "settingsRestored: name is empty"); |
| success = true; |
| } else { |
| if (DEBUG) Slog.v(TAG, "settingsRestored: attempting to restore named resource"); |
| success = restoreNamedResourceLocked(wallpaper); |
| } |
| if (DEBUG) Slog.v(TAG, "settingsRestored: success=" + success |
| + " id=" + wallpaper.wallpaperId); |
| if (success) { |
| generateCrop(wallpaper); // based on the new image + metadata |
| bindWallpaperComponentLocked(wallpaper.nextWallpaperComponent, true, false, |
| wallpaper, null); |
| } |
| } |
| } |
| |
| if (!success) { |
| Slog.e(TAG, "Failed to restore wallpaper: '" + wallpaper.name + "'"); |
| wallpaper.name = ""; |
| getWallpaperDir(UserHandle.USER_SYSTEM).delete(); |
| } |
| |
| synchronized (mLock) { |
| saveSettingsLocked(UserHandle.USER_SYSTEM); |
| } |
| } |
| |
| // Restore the named resource bitmap to both source + crop files |
| boolean restoreNamedResourceLocked(WallpaperData wallpaper) { |
| if (wallpaper.name.length() > 4 && "res:".equals(wallpaper.name.substring(0, 4))) { |
| String resName = wallpaper.name.substring(4); |
| |
| String pkg = null; |
| int colon = resName.indexOf(':'); |
| if (colon > 0) { |
| pkg = resName.substring(0, colon); |
| } |
| |
| String ident = null; |
| int slash = resName.lastIndexOf('/'); |
| if (slash > 0) { |
| ident = resName.substring(slash+1); |
| } |
| |
| String type = null; |
| if (colon > 0 && slash > 0 && (slash-colon) > 1) { |
| type = resName.substring(colon+1, slash); |
| } |
| |
| if (pkg != null && ident != null && type != null) { |
| int resId = -1; |
| InputStream res = null; |
| FileOutputStream fos = null; |
| FileOutputStream cos = null; |
| try { |
| Context c = mContext.createPackageContext(pkg, Context.CONTEXT_RESTRICTED); |
| Resources r = c.getResources(); |
| resId = r.getIdentifier(resName, null, null); |
| if (resId == 0) { |
| Slog.e(TAG, "couldn't resolve identifier pkg=" + pkg + " type=" + type |
| + " ident=" + ident); |
| return false; |
| } |
| |
| res = r.openRawResource(resId); |
| if (wallpaper.wallpaperFile.exists()) { |
| wallpaper.wallpaperFile.delete(); |
| wallpaper.cropFile.delete(); |
| } |
| fos = new FileOutputStream(wallpaper.wallpaperFile); |
| cos = new FileOutputStream(wallpaper.cropFile); |
| |
| byte[] buffer = new byte[32768]; |
| int amt; |
| while ((amt=res.read(buffer)) > 0) { |
| fos.write(buffer, 0, amt); |
| cos.write(buffer, 0, amt); |
| } |
| // mWallpaperObserver will notice the close and send the change broadcast |
| |
| Slog.v(TAG, "Restored wallpaper: " + resName); |
| return true; |
| } catch (NameNotFoundException e) { |
| Slog.e(TAG, "Package name " + pkg + " not found"); |
| } catch (Resources.NotFoundException e) { |
| Slog.e(TAG, "Resource not found: " + resId); |
| } catch (IOException e) { |
| Slog.e(TAG, "IOException while restoring wallpaper ", e); |
| } finally { |
| IoUtils.closeQuietly(res); |
| if (fos != null) { |
| FileUtils.sync(fos); |
| } |
| if (cos != null) { |
| FileUtils.sync(cos); |
| } |
| IoUtils.closeQuietly(fos); |
| IoUtils.closeQuietly(cos); |
| } |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) |
| != PackageManager.PERMISSION_GRANTED) { |
| |
| pw.println("Permission Denial: can't dump wallpaper service from from pid=" |
| + Binder.getCallingPid() |
| + ", uid=" + Binder.getCallingUid()); |
| return; |
| } |
| |
| synchronized (mLock) { |
| pw.println("Current Wallpaper Service state:"); |
| for (int i = 0; i < mWallpaperMap.size(); i++) { |
| WallpaperData wallpaper = mWallpaperMap.valueAt(i); |
| pw.print(" User "); pw.print(wallpaper.userId); |
| pw.print(": id="); pw.println(wallpaper.wallpaperId); |
| pw.print(" mWidth="); |
| pw.print(wallpaper.width); |
| pw.print(" mHeight="); |
| pw.println(wallpaper.height); |
| pw.print(" mCropHint="); pw.println(wallpaper.cropHint); |
| pw.print(" mPadding="); pw.println(wallpaper.padding); |
| pw.print(" mName="); pw.println(wallpaper.name); |
| pw.print(" mWallpaperComponent="); pw.println(wallpaper.wallpaperComponent); |
| if (wallpaper.connection != null) { |
| WallpaperConnection conn = wallpaper.connection; |
| pw.print(" Wallpaper connection "); |
| pw.print(conn); |
| pw.println(":"); |
| if (conn.mInfo != null) { |
| pw.print(" mInfo.component="); |
| pw.println(conn.mInfo.getComponent()); |
| } |
| pw.print(" mToken="); |
| pw.println(conn.mToken); |
| pw.print(" mService="); |
| pw.println(conn.mService); |
| pw.print(" mEngine="); |
| pw.println(conn.mEngine); |
| pw.print(" mLastDiedTime="); |
| pw.println(wallpaper.lastDiedTime - SystemClock.uptimeMillis()); |
| } |
| } |
| } |
| } |
| } |