| /* |
| * 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_LOCK; |
| import static android.app.WallpaperManager.FLAG_SYSTEM; |
| import static android.content.pm.PackageManager.MATCH_DIRECT_BOOT_AUTO; |
| import static android.os.ParcelFileDescriptor.MODE_CREATE; |
| import static android.os.ParcelFileDescriptor.MODE_READ_ONLY; |
| import static android.os.ParcelFileDescriptor.MODE_READ_WRITE; |
| import static android.os.ParcelFileDescriptor.MODE_TRUNCATE; |
| import static android.view.Display.DEFAULT_DISPLAY; |
| import static android.view.WindowManager.LayoutParams.TYPE_WALLPAPER; |
| |
| import android.annotation.NonNull; |
| import android.app.ActivityManager; |
| import android.app.AppGlobals; |
| import android.app.AppOpsManager; |
| import android.app.IWallpaperManager; |
| import android.app.IWallpaperManagerCallback; |
| import android.app.PendingIntent; |
| import android.app.UserSwitchObserver; |
| import android.app.WallpaperColors; |
| import android.app.WallpaperInfo; |
| import android.app.WallpaperManager; |
| import android.app.admin.DevicePolicyManager; |
| 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.PackageManager.NameNotFoundException; |
| import android.content.pm.ResolveInfo; |
| import android.content.pm.ServiceInfo; |
| 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.Color; |
| import android.graphics.Rect; |
| import android.hardware.display.DisplayManager; |
| import android.os.Binder; |
| import android.os.Bundle; |
| import android.os.Debug; |
| import android.os.Environment; |
| import android.os.FileObserver; |
| import android.os.FileUtils; |
| import android.os.Handler; |
| import android.os.IBinder; |
| import android.os.IInterface; |
| import android.os.IRemoteCallback; |
| import android.os.ParcelFileDescriptor; |
| import android.os.Process; |
| import android.os.RemoteCallbackList; |
| import android.os.RemoteException; |
| 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.system.ErrnoException; |
| import android.system.Os; |
| import android.util.EventLog; |
| import android.util.Slog; |
| import android.util.SparseArray; |
| import android.util.SparseBooleanArray; |
| import android.util.Xml; |
| import android.view.Display; |
| import android.view.DisplayInfo; |
| import android.view.IWindowManager; |
| |
| import com.android.internal.R; |
| import com.android.internal.content.PackageMonitor; |
| import com.android.internal.os.BackgroundThread; |
| import com.android.internal.util.DumpUtils; |
| import com.android.internal.util.FastXmlSerializer; |
| import com.android.internal.util.JournaledFile; |
| import com.android.server.EventLogTags; |
| import com.android.server.FgThread; |
| import com.android.server.LocalServices; |
| import com.android.server.SystemService; |
| import com.android.server.wm.WindowManagerInternal; |
| |
| import libcore.io.IoUtils; |
| |
| import org.xmlpull.v1.XmlPullParser; |
| import org.xmlpull.v1.XmlPullParserException; |
| import org.xmlpull.v1.XmlSerializer; |
| |
| import java.io.BufferedOutputStream; |
| import java.io.File; |
| import java.io.FileDescriptor; |
| import java.io.FileInputStream; |
| import java.io.FileNotFoundException; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.PrintWriter; |
| import java.nio.charset.StandardCharsets; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.Objects; |
| import java.util.function.Consumer; |
| import java.util.function.Predicate; |
| |
| public class WallpaperManagerService extends IWallpaperManager.Stub |
| implements IWallpaperManagerService { |
| private static final String TAG = "WallpaperManagerService"; |
| private static final boolean DEBUG = false; |
| private static final boolean DEBUG_LIVE = true; |
| |
| public static class Lifecycle extends SystemService { |
| private IWallpaperManagerService mService; |
| |
| public Lifecycle(Context context) { |
| super(context); |
| } |
| |
| @Override |
| public void onStart() { |
| try { |
| final Class<? extends IWallpaperManagerService> klass = |
| (Class<? extends IWallpaperManagerService>)Class.forName( |
| getContext().getResources().getString( |
| R.string.config_wallpaperManagerServiceName)); |
| mService = klass.getConstructor(Context.class).newInstance(getContext()); |
| publishBinderService(Context.WALLPAPER_SERVICE, mService); |
| } catch (Exception exp) { |
| Slog.wtf(TAG, "Failed to instantiate WallpaperManagerService", exp); |
| } |
| } |
| |
| @Override |
| public void onBootPhase(int phase) { |
| if (mService != null) { |
| mService.onBootPhase(phase); |
| } |
| } |
| |
| @Override |
| public void onUnlockUser(int userHandle) { |
| if (mService != null) { |
| mService.onUnlockUser(userHandle); |
| } |
| } |
| } |
| |
| private 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. |
| */ |
| private static final long MIN_WALLPAPER_CRASH_TIME = 10000; |
| private 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 |
| private 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 |
| * every time the wallpaper is changed. |
| */ |
| private class WallpaperObserver extends FileObserver { |
| |
| final int mUserId; |
| final WallpaperData mWallpaper; |
| final File mWallpaperDir; |
| final File mWallpaperFile; |
| final File mWallpaperLockFile; |
| |
| 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); |
| } |
| |
| 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 moved = (event == MOVED_TO); |
| final boolean written = (event == CLOSE_WRITE || moved); |
| 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)); |
| int notifyColorsWhich = 0; |
| 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); |
| } |
| |
| if (moved && lockWallpaperChanged) { |
| // We just migrated sys -> lock to preserve imagery for an impending |
| // new system-only wallpaper. Tell keyguard about it and make sure it |
| // has the right SELinux label. |
| if (DEBUG) { |
| Slog.i(TAG, "Sys -> lock MOVED_TO"); |
| } |
| SELinux.restorecon(changedFile); |
| notifyLockWallpaperChanged(); |
| notifyWallpaperColorsChanged(wallpaper, FLAG_LOCK); |
| return; |
| } |
| |
| synchronized (mLock) { |
| 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"); |
| } |
| SELinux.restorecon(changedFile); |
| if (moved) { |
| // This is a restore, so generate the crop using any just-restored new |
| // crop guidelines, making sure to preserve our local dimension hints. |
| // We also make sure to reapply the correct SELinux label. |
| if (DEBUG) { |
| Slog.v(TAG, "moved-to, therefore restore; reloading metadata"); |
| } |
| loadSettingsLocked(wallpaper.userId, true); |
| } |
| generateCrop(wallpaper); |
| if (DEBUG) { |
| Slog.v(TAG, "Crop done; invoking completion callback"); |
| } |
| wallpaper.imageWallpaperPending = false; |
| if (sysWallpaperChanged) { |
| // If this was the system wallpaper, rebind... |
| bindWallpaperComponentLocked(mImageWallpaper, true, |
| false, wallpaper, null); |
| notifyColorsWhich |= FLAG_SYSTEM; |
| } |
| 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 |
| notifyLockWallpaperChanged(); |
| notifyColorsWhich |= FLAG_LOCK; |
| } |
| |
| saveSettingsLocked(wallpaper.userId); |
| |
| // Publish completion *after* we've persisted the changes |
| 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. |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| // Outside of the lock since it will synchronize itself |
| if (notifyColorsWhich != 0) { |
| notifyWallpaperColorsChanged(wallpaper, notifyColorsWhich); |
| } |
| } |
| } |
| |
| private void notifyLockWallpaperChanged() { |
| final IWallpaperManagerCallback cb = mKeyguardListener; |
| if (cb != null) { |
| try { |
| cb.onWallpaperChanged(); |
| } catch (RemoteException e) { |
| // Oh well it went away; no big deal |
| } |
| } |
| } |
| |
| private void notifyWallpaperColorsChanged(@NonNull WallpaperData wallpaper, int which) { |
| if (wallpaper.connection != null) { |
| wallpaper.connection.forEachDisplayConnector(connector -> { |
| notifyWallpaperColorsChangedOnDisplay(wallpaper, which, connector.mDisplayId); |
| }); |
| } else { // Lock wallpaper does not have WallpaperConnection. |
| notifyWallpaperColorsChangedOnDisplay(wallpaper, which, DEFAULT_DISPLAY); |
| } |
| } |
| |
| private RemoteCallbackList<IWallpaperManagerCallback> getWallpaperCallbacks(int userId, |
| int displayId) { |
| RemoteCallbackList<IWallpaperManagerCallback> listeners = null; |
| final SparseArray<RemoteCallbackList<IWallpaperManagerCallback>> displayListeners = |
| mColorsChangedListeners.get(userId); |
| if (displayListeners != null) { |
| listeners = displayListeners.get(displayId); |
| } |
| return listeners; |
| } |
| |
| private void notifyWallpaperColorsChangedOnDisplay(@NonNull WallpaperData wallpaper, int which, |
| int displayId) { |
| boolean needsExtraction; |
| synchronized (mLock) { |
| final RemoteCallbackList<IWallpaperManagerCallback> currentUserColorListeners = |
| getWallpaperCallbacks(wallpaper.userId, displayId); |
| final RemoteCallbackList<IWallpaperManagerCallback> userAllColorListeners = |
| getWallpaperCallbacks(UserHandle.USER_ALL, displayId); |
| // No-op until someone is listening to it. |
| if (emptyCallbackList(currentUserColorListeners) && |
| emptyCallbackList(userAllColorListeners)) { |
| return; |
| } |
| |
| if (DEBUG) { |
| Slog.v(TAG, "notifyWallpaperColorsChangedOnDisplay " + which); |
| } |
| |
| needsExtraction = wallpaper.primaryColors == null; |
| } |
| |
| // Let's notify the current values, it's fine if it's null, it just means |
| // that we don't know yet. |
| notifyColorListeners(wallpaper.primaryColors, which, wallpaper.userId, displayId); |
| |
| if (needsExtraction) { |
| extractColors(wallpaper); |
| synchronized (mLock) { |
| // Don't need to notify if nothing changed. |
| if (wallpaper.primaryColors == null) { |
| return; |
| } |
| } |
| notifyColorListeners(wallpaper.primaryColors, which, wallpaper.userId, displayId); |
| } |
| } |
| |
| private static <T extends IInterface> boolean emptyCallbackList(RemoteCallbackList<T> list) { |
| return (list == null || list.getRegisteredCallbackCount() == 0); |
| } |
| |
| private void notifyColorListeners(@NonNull WallpaperColors wallpaperColors, int which, |
| int userId, int displayId) { |
| final IWallpaperManagerCallback keyguardListener; |
| final ArrayList<IWallpaperManagerCallback> colorListeners = new ArrayList<>(); |
| synchronized (mLock) { |
| final RemoteCallbackList<IWallpaperManagerCallback> currentUserColorListeners = |
| getWallpaperCallbacks(userId, displayId); |
| final RemoteCallbackList<IWallpaperManagerCallback> userAllColorListeners = |
| getWallpaperCallbacks(UserHandle.USER_ALL, displayId); |
| keyguardListener = mKeyguardListener; |
| |
| if (currentUserColorListeners != null) { |
| final int count = currentUserColorListeners.beginBroadcast(); |
| for (int i = 0; i < count; i++) { |
| colorListeners.add(currentUserColorListeners.getBroadcastItem(i)); |
| } |
| currentUserColorListeners.finishBroadcast(); |
| } |
| |
| if (userAllColorListeners != null) { |
| final int count = userAllColorListeners.beginBroadcast(); |
| for (int i = 0; i < count; i++) { |
| colorListeners.add(userAllColorListeners.getBroadcastItem(i)); |
| } |
| userAllColorListeners.finishBroadcast(); |
| } |
| } |
| |
| final int count = colorListeners.size(); |
| for (int i = 0; i < count; i++) { |
| try { |
| colorListeners.get(i).onWallpaperColorsChanged(wallpaperColors, which, userId); |
| } catch (RemoteException e) { |
| // Callback is gone, it's not necessary to unregister it since |
| // RemoteCallbackList#getBroadcastItem will take care of it. |
| } |
| } |
| |
| // Only shows Keyguard on default display |
| if (keyguardListener != null && displayId == DEFAULT_DISPLAY) { |
| try { |
| keyguardListener.onWallpaperColorsChanged(wallpaperColors, which, userId); |
| } catch (RemoteException e) { |
| // Oh well it went away; no big deal |
| } |
| } |
| } |
| |
| /** |
| * We can easily extract colors from an ImageWallpaper since it's only a bitmap. |
| * In this case, using the crop is more than enough. Live wallpapers are just ignored. |
| * |
| * @param wallpaper a wallpaper representation |
| */ |
| private void extractColors(WallpaperData wallpaper) { |
| String cropFile = null; |
| boolean defaultImageWallpaper = false; |
| int wallpaperId; |
| |
| if (wallpaper.equals(mFallbackWallpaper)) { |
| synchronized (mLock) { |
| if (mFallbackWallpaper.primaryColors != null) return; |
| } |
| final WallpaperColors colors = extractDefaultImageWallpaperColors(); |
| synchronized (mLock) { |
| mFallbackWallpaper.primaryColors = colors; |
| } |
| return; |
| } |
| |
| synchronized (mLock) { |
| // Not having a wallpaperComponent means it's a lock screen wallpaper. |
| final boolean imageWallpaper = mImageWallpaper.equals(wallpaper.wallpaperComponent) |
| || wallpaper.wallpaperComponent == null; |
| if (imageWallpaper && wallpaper.cropFile != null && wallpaper.cropFile.exists()) { |
| cropFile = wallpaper.cropFile.getAbsolutePath(); |
| } else if (imageWallpaper && !wallpaper.cropExists() && !wallpaper.sourceExists()) { |
| defaultImageWallpaper = true; |
| } |
| wallpaperId = wallpaper.wallpaperId; |
| } |
| |
| WallpaperColors colors = null; |
| if (cropFile != null) { |
| Bitmap bitmap = BitmapFactory.decodeFile(cropFile); |
| if (bitmap != null) { |
| colors = WallpaperColors.fromBitmap(bitmap); |
| bitmap.recycle(); |
| } |
| } else if (defaultImageWallpaper) { |
| // There is no crop and source file because this is default image wallpaper. |
| colors = extractDefaultImageWallpaperColors(); |
| } |
| |
| if (colors == null) { |
| Slog.w(TAG, "Cannot extract colors because wallpaper could not be read."); |
| return; |
| } |
| |
| synchronized (mLock) { |
| if (wallpaper.wallpaperId == wallpaperId) { |
| wallpaper.primaryColors = colors; |
| // Now that we have the colors, let's save them into the xml |
| // to avoid having to run this again. |
| saveSettingsLocked(wallpaper.userId); |
| } else { |
| Slog.w(TAG, "Not setting primary colors since wallpaper changed"); |
| } |
| } |
| } |
| |
| private WallpaperColors extractDefaultImageWallpaperColors() { |
| if (DEBUG) Slog.d(TAG, "Extract default image wallpaper colors"); |
| |
| synchronized (mLock) { |
| if (mCacheDefaultImageWallpaperColors != null) return mCacheDefaultImageWallpaperColors; |
| } |
| |
| WallpaperColors colors = null; |
| try (InputStream is = WallpaperManager.openDefaultWallpaper(mContext, FLAG_SYSTEM)) { |
| if (is == null) { |
| Slog.w(TAG, "Can't open default wallpaper stream"); |
| return null; |
| } |
| |
| final BitmapFactory.Options options = new BitmapFactory.Options(); |
| final Bitmap bitmap = BitmapFactory.decodeStream(is, null, options); |
| if (bitmap != null) { |
| colors = WallpaperColors.fromBitmap(bitmap); |
| bitmap.recycle(); |
| } |
| } catch (OutOfMemoryError e) { |
| Slog.w(TAG, "Can't decode default wallpaper stream", e); |
| } catch (IOException e) { |
| Slog.w(TAG, "Can't close default wallpaper stream", e); |
| } |
| |
| if (colors == null) { |
| Slog.e(TAG, "Extract default image wallpaper colors failed"); |
| } else { |
| synchronized (mLock) { |
| mCacheDefaultImageWallpaperColors = colors; |
| } |
| } |
| |
| return colors; |
| } |
| |
| /** |
| * Once a new wallpaper has been written via setWallpaper(...), it needs to be cropped |
| * for display. |
| */ |
| private void generateCrop(WallpaperData wallpaper) { |
| boolean success = false; |
| |
| // Only generate crop for default display. |
| final DisplayData wpData = getDisplayDataOrCreate(DEFAULT_DISPLAY); |
| Rect cropHint = new Rect(wallpaper.cropHint); |
| |
| if (DEBUG) { |
| Slog.v(TAG, "Generating crop for new wallpaper(s): 0x" |
| + Integer.toHexString(wallpaper.whichPending) |
| + " to " + wallpaper.cropFile.getName() |
| + " crop=(" + cropHint.width() + 'x' + cropHint.height() |
| + ") dim=(" + wpData.mWidth + 'x' + wpData.mHeight + ')'); |
| } |
| |
| // Analyse the source; needed in multiple cases |
| BitmapFactory.Options options = new BitmapFactory.Options(); |
| options.inJustDecodeBounds = true; |
| BitmapFactory.decodeFile(wallpaper.wallpaperFile.getAbsolutePath(), options); |
| if (options.outWidth <= 0 || options.outHeight <= 0) { |
| Slog.w(TAG, "Invalid wallpaper data"); |
| success = false; |
| } else { |
| boolean needCrop = false; |
| boolean needScale = false; |
| |
| // Empty crop means use the full image |
| if (cropHint.isEmpty()) { |
| cropHint.left = cropHint.top = 0; |
| cropHint.right = options.outWidth; |
| cropHint.bottom = options.outHeight; |
| } else { |
| // force the crop rect to lie within the measured bounds |
| cropHint.offset( |
| (cropHint.right > options.outWidth ? options.outWidth - cropHint.right : 0), |
| (cropHint.bottom > options.outHeight ? options.outHeight - cropHint.bottom : 0)); |
| |
| // If the crop hint was larger than the image we just overshot. Patch things up. |
| if (cropHint.left < 0) { |
| cropHint.left = 0; |
| } |
| if (cropHint.top < 0) { |
| cropHint.top = 0; |
| } |
| |
| // Don't bother cropping if what we're left with is identity |
| needCrop = (options.outHeight > cropHint.height() |
| || options.outWidth > cropHint.width()); |
| } |
| |
| // scale if the crop height winds up not matching the recommended metrics |
| needScale = (wpData.mHeight != cropHint.height()); |
| |
| //make sure screen aspect ratio is preserved if width is scaled under screen size |
| if (needScale) { |
| final DisplayInfo displayInfo = new DisplayInfo(); |
| mDisplayManager.getDisplay(DEFAULT_DISPLAY).getDisplayInfo(displayInfo); |
| final float scaleByHeight = (float) wpData.mHeight / (float) cropHint.height(); |
| final int newWidth = (int) (cropHint.width() * scaleByHeight); |
| if (newWidth < displayInfo.logicalWidth) { |
| final float screenAspectRatio = |
| (float) displayInfo.logicalHeight / (float) displayInfo.logicalWidth; |
| cropHint.bottom = (int) (cropHint.width() * screenAspectRatio); |
| needCrop = true; |
| } |
| } |
| |
| if (DEBUG) { |
| Slog.v(TAG, "crop: w=" + cropHint.width() + " h=" + cropHint.height()); |
| Slog.v(TAG, "dims: w=" + wpData.mWidth + " h=" + wpData.mHeight); |
| Slog.v(TAG, "meas: w=" + options.outWidth + " h=" + options.outHeight); |
| Slog.v(TAG, "crop?=" + needCrop + " scale?=" + needScale); |
| } |
| |
| if (!needCrop && !needScale) { |
| // Simple case: the nominal crop fits what we want, 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 scale. First, we decode and scale down if appropriate. |
| FileOutputStream f = null; |
| BufferedOutputStream bos = null; |
| try { |
| BitmapRegionDecoder decoder = BitmapRegionDecoder.newInstance( |
| wallpaper.wallpaperFile.getAbsolutePath(), false); |
| |
| // This actually downsamples only by powers of two, but that's okay; we do |
| // a proper scaling blit later. This is to minimize transient RAM use. |
| // We calculate the largest power-of-two under the actual ratio rather than |
| // just let the decode take care of it because we also want to remap where the |
| // cropHint rectangle lies in the decoded [super]rect. |
| final BitmapFactory.Options scaler; |
| final int actualScale = cropHint.height() / wpData.mHeight; |
| int scale = 1; |
| while (2*scale < actualScale) { |
| scale *= 2; |
| } |
| if (scale > 1) { |
| scaler = new BitmapFactory.Options(); |
| scaler.inSampleSize = scale; |
| if (DEBUG) { |
| Slog.v(TAG, "Downsampling cropped rect with scale " + scale); |
| } |
| } else { |
| scaler = null; |
| } |
| Bitmap cropped = decoder.decodeRegion(cropHint, scaler); |
| decoder.recycle(); |
| |
| if (cropped == null) { |
| Slog.e(TAG, "Could not decode new wallpaper"); |
| } else { |
| // We've got the extracted crop; now we want to scale it properly to |
| // the desired rectangle. That's a height-biased operation: make it |
| // fit the hinted height, and accept whatever width we end up with. |
| cropHint.offsetTo(0, 0); |
| cropHint.right /= scale; // adjust by downsampling factor |
| cropHint.bottom /= scale; |
| final float heightR = |
| ((float) wpData.mHeight) / ((float) cropHint.height()); |
| if (DEBUG) { |
| Slog.v(TAG, "scale " + heightR + ", extracting " + cropHint); |
| } |
| final int destWidth = (int)(cropHint.width() * heightR); |
| final Bitmap finalCrop = Bitmap.createScaledBitmap(cropped, |
| destWidth, wpData.mHeight, true); |
| if (DEBUG) { |
| Slog.v(TAG, "Final extract:"); |
| Slog.v(TAG, " dims: w=" + wpData.mWidth |
| + " h=" + wpData.mHeight); |
| Slog.v(TAG, " out: w=" + finalCrop.getWidth() |
| + " h=" + finalCrop.getHeight()); |
| } |
| |
| f = new FileOutputStream(wallpaper.cropFile); |
| bos = new BufferedOutputStream(f, 32*1024); |
| finalCrop.compress(Bitmap.CompressFormat.JPEG, 100, bos); |
| bos.flush(); // don't rely on the implicit flush-at-close when noting success |
| success = true; |
| } |
| } catch (Exception e) { |
| if (DEBUG) { |
| Slog.e(TAG, "Error decoding crop", e); |
| } |
| } 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); |
| } |
| } |
| } |
| |
| private final Context mContext; |
| private final IWindowManager mIWindowManager; |
| private final WindowManagerInternal mWindowManagerInternal; |
| private final IPackageManager mIPackageManager; |
| private final MyPackageMonitor mMonitor; |
| private final AppOpsManager mAppOpsManager; |
| |
| private final DisplayManager mDisplayManager; |
| private final DisplayManager.DisplayListener mDisplayListener = |
| new DisplayManager.DisplayListener() { |
| |
| @Override |
| public void onDisplayAdded(int displayId) { |
| } |
| |
| @Override |
| public void onDisplayRemoved(int displayId) { |
| synchronized (mLock) { |
| if (mLastWallpaper != null) { |
| WallpaperData targetWallpaper = null; |
| if (mLastWallpaper.connection.containsDisplay(displayId)) { |
| targetWallpaper = mLastWallpaper; |
| } else if (mFallbackWallpaper.connection.containsDisplay(displayId)) { |
| targetWallpaper = mFallbackWallpaper; |
| } |
| if (targetWallpaper == null) return; |
| WallpaperConnection.DisplayConnector connector = |
| targetWallpaper.connection.getDisplayConnectorOrCreate(displayId); |
| if (connector == null) return; |
| connector.disconnectLocked(); |
| targetWallpaper.connection.removeDisplayConnector(displayId); |
| removeDisplayData(displayId); |
| } |
| for (int i = mColorsChangedListeners.size() - 1; i >= 0; i--) { |
| final SparseArray<RemoteCallbackList<IWallpaperManagerCallback>> callbacks = |
| mColorsChangedListeners.valueAt(i); |
| callbacks.delete(displayId); |
| } |
| } |
| } |
| |
| @Override |
| public void onDisplayChanged(int displayId) { |
| } |
| }; |
| |
| /** |
| * Map of color listeners per user id. |
| * The first key will be the id of a user or UserHandle.USER_ALL - for wildcard listeners. |
| * The secondary key will be the display id, which means which display the listener is |
| * interested in. |
| */ |
| private final SparseArray<SparseArray<RemoteCallbackList<IWallpaperManagerCallback>>> |
| mColorsChangedListeners; |
| private WallpaperData mLastWallpaper; |
| private IWallpaperManagerCallback mKeyguardListener; |
| private boolean mWaitingForUnlock; |
| private boolean mShuttingDown; |
| |
| /** |
| * ID of the current wallpaper, changed every time anything sets a wallpaper. |
| * This is used for external detection of wallpaper update activity. |
| */ |
| private int mWallpaperId; |
| |
| /** |
| * Name of the component used to display bitmap wallpapers from either the gallery or |
| * built-in wallpapers. |
| */ |
| private final ComponentName mImageWallpaper; |
| |
| /** |
| * Default image wallpaper shall never changed after system service started, caching it when we |
| * first read the image file. |
| */ |
| private WallpaperColors mCacheDefaultImageWallpaperColors; |
| |
| /** |
| * Name of the default wallpaper component; might be different from mImageWallpaper |
| */ |
| private final ComponentName mDefaultWallpaperComponent; |
| |
| private final SparseArray<WallpaperData> mWallpaperMap = new SparseArray<WallpaperData>(); |
| private final SparseArray<WallpaperData> mLockWallpaperMap = new SparseArray<WallpaperData>(); |
| |
| private SparseArray<DisplayData> mDisplayDatas = new SparseArray<>(); |
| |
| private WallpaperData mFallbackWallpaper; |
| |
| private final SparseBooleanArray mUserRestorecon = new SparseBooleanArray(); |
| private int mCurrentUserId = UserHandle.USER_NULL; |
| private boolean mInAmbientMode; |
| |
| 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; |
| |
| /** |
| * Is the OS allowed to back up this wallpaper imagery? |
| */ |
| boolean allowBackup; |
| |
| /** |
| * 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; |
| |
| /** |
| * Primary colors histogram |
| */ |
| WallpaperColors primaryColors; |
| |
| 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>(); |
| |
| /** |
| * The crop hint supplied for displaying a subset of the source image |
| */ |
| final Rect cropHint = 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(); |
| } |
| |
| boolean sourceExists() { |
| return wallpaperFile.exists(); |
| } |
| } |
| |
| private static final class DisplayData { |
| int mWidth = -1; |
| int mHeight = -1; |
| final Rect mPadding = new Rect(0, 0, 0, 0); |
| final int mDisplayId; |
| |
| DisplayData(int displayId) { |
| mDisplayId = displayId; |
| } |
| } |
| |
| private void removeDisplayData(int displayId) { |
| mDisplayDatas.remove(displayId); |
| } |
| |
| private DisplayData getDisplayDataOrCreate(int displayId) { |
| DisplayData wpdData = mDisplayDatas.get(displayId); |
| if (wpdData == null) { |
| wpdData = new DisplayData(displayId); |
| ensureSaneWallpaperDisplaySize(wpdData, displayId); |
| mDisplayDatas.append(displayId, wpdData); |
| } |
| return wpdData; |
| } |
| |
| private void ensureSaneWallpaperDisplaySize(DisplayData wpdData, int displayId) { |
| // We always want to have some reasonable width hint. |
| final int baseSize = getMaximumSizeDimension(displayId); |
| if (wpdData.mWidth < baseSize) { |
| wpdData.mWidth = baseSize; |
| } |
| if (wpdData.mHeight < baseSize) { |
| wpdData.mHeight = baseSize; |
| } |
| } |
| |
| private int getMaximumSizeDimension(int displayId) { |
| Display display = mDisplayManager.getDisplay(displayId); |
| if (display == null) { |
| Slog.w(TAG, "Invalid displayId=" + displayId + " " + Debug.getCallers(4)); |
| display = mDisplayManager.getDisplay(DEFAULT_DISPLAY); |
| } |
| return display.getMaximumSizeDimension(); |
| } |
| |
| void forEachDisplayData(Consumer<DisplayData> action) { |
| for (int i = mDisplayDatas.size() - 1; i >= 0; i--) { |
| final DisplayData wpdData = mDisplayDatas.valueAt(i); |
| action.accept(wpdData); |
| } |
| } |
| |
| int makeWallpaperIdLocked() { |
| do { |
| ++mWallpaperId; |
| } while (mWallpaperId == 0); |
| return mWallpaperId; |
| } |
| |
| private boolean supportsMultiDisplay(WallpaperConnection connection) { |
| if (connection != null) { |
| return connection.mInfo == null // This is image wallpaper |
| || connection.mInfo.supportsMultipleDisplays(); |
| } |
| return false; |
| } |
| |
| private void updateFallbackConnection() { |
| if (mLastWallpaper == null || mFallbackWallpaper == null) return; |
| final WallpaperConnection systemConnection = mLastWallpaper.connection; |
| final WallpaperConnection fallbackConnection = mFallbackWallpaper.connection; |
| if (fallbackConnection == null) { |
| Slog.w(TAG, "Fallback wallpaper connection has not been created yet!!"); |
| return; |
| } |
| if (supportsMultiDisplay(systemConnection)) { |
| if (fallbackConnection.mDisplayConnector.size() != 0) { |
| fallbackConnection.forEachDisplayConnector(connector -> { |
| if (connector.mEngine != null) { |
| connector.disconnectLocked(); |
| } |
| }); |
| fallbackConnection.mDisplayConnector.clear(); |
| } |
| } else { |
| fallbackConnection.appendConnectorWithCondition(display -> |
| fallbackConnection.isUsableDisplay(display) |
| && display.getDisplayId() != DEFAULT_DISPLAY |
| && !fallbackConnection.containsDisplay(display.getDisplayId())); |
| fallbackConnection.forEachDisplayConnector(connector -> { |
| if (connector.mEngine == null) { |
| connector.connectLocked(fallbackConnection, mFallbackWallpaper); |
| } |
| }); |
| } |
| } |
| |
| class WallpaperConnection extends IWallpaperConnection.Stub |
| implements ServiceConnection { |
| |
| /** |
| * Collect needed info for a display. |
| */ |
| private final class DisplayConnector { |
| final int mDisplayId; |
| final Binder mToken = new Binder(); |
| IWallpaperEngine mEngine; |
| boolean mDimensionsChanged; |
| boolean mPaddingChanged; |
| |
| DisplayConnector(int displayId) { |
| mDisplayId = displayId; |
| } |
| |
| void ensureStatusHandled() { |
| final DisplayData wpdData = getDisplayDataOrCreate(mDisplayId); |
| if (mDimensionsChanged) { |
| try { |
| mEngine.setDesiredSize(wpdData.mWidth, wpdData.mHeight); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failed to set wallpaper dimensions", e); |
| } |
| mDimensionsChanged = false; |
| } |
| if (mPaddingChanged) { |
| try { |
| mEngine.setDisplayPadding(wpdData.mPadding); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failed to set wallpaper padding", e); |
| } |
| mPaddingChanged = false; |
| } |
| } |
| |
| void connectLocked(WallpaperConnection connection, WallpaperData wallpaper) { |
| if (connection.mService == null) { |
| Slog.w(TAG, "WallpaperService is not connected yet"); |
| return; |
| } |
| if (DEBUG) Slog.v(TAG, "Adding window token: " + mToken); |
| try { |
| mIWindowManager.addWindowToken(mToken, TYPE_WALLPAPER, mDisplayId); |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Failed add wallpaper window token on display " + mDisplayId, e); |
| return; |
| } |
| |
| final DisplayData wpdData = getDisplayDataOrCreate(mDisplayId); |
| try { |
| connection.mService.attach(connection, mToken, TYPE_WALLPAPER, false, |
| wpdData.mWidth, wpdData.mHeight, |
| wpdData.mPadding, mDisplayId); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failed attaching wallpaper on display", e); |
| if (wallpaper != null && !wallpaper.wallpaperUpdating |
| && connection.getConnectedEngineSize() == 0) { |
| bindWallpaperComponentLocked(null /* componentName */, false /* force */, |
| false /* fromUser */, wallpaper, null /* reply */); |
| } |
| } |
| } |
| |
| void disconnectLocked() { |
| if (DEBUG) Slog.v(TAG, "Removing window token: " + mToken); |
| try { |
| mIWindowManager.removeWindowToken(mToken, mDisplayId); |
| } catch (RemoteException e) { |
| } |
| try { |
| if (mEngine != null) { |
| mEngine.destroy(); |
| } |
| } catch (RemoteException e) { |
| } |
| mEngine = null; |
| } |
| } |
| |
| /** |
| * A map for each display. |
| * Use {@link #getDisplayConnectorOrCreate(int displayId)} to ensure the display is usable. |
| */ |
| private SparseArray<DisplayConnector> mDisplayConnector = new SparseArray<>(); |
| |
| /** Time in milliseconds until we expect the wallpaper to reconnect (unless we're in the |
| * middle of an update). If exceeded, the wallpaper gets reset to the system default. */ |
| private static final long WALLPAPER_RECONNECT_TIMEOUT_MS = 10000; |
| |
| final WallpaperInfo mInfo; |
| IWallpaperService mService; |
| WallpaperData mWallpaper; |
| final int mClientUid; |
| IRemoteCallback mReply; |
| |
| private Runnable mResetRunnable = () -> { |
| synchronized (mLock) { |
| if (mShuttingDown) { |
| // Don't expect wallpaper services to relaunch during shutdown |
| if (DEBUG_LIVE) { |
| Slog.i(TAG, "Ignoring relaunch timeout during shutdown"); |
| } |
| return; |
| } |
| |
| if (!mWallpaper.wallpaperUpdating |
| && mWallpaper.userId == mCurrentUserId) { |
| Slog.w(TAG, "Wallpaper reconnect timed out for " + mWallpaper.wallpaperComponent |
| + ", reverting to built-in wallpaper!"); |
| clearWallpaperLocked(true, FLAG_SYSTEM, mWallpaper.userId, |
| null); |
| } |
| } |
| }; |
| |
| WallpaperConnection(WallpaperInfo info, WallpaperData wallpaper, int clientUid) { |
| mInfo = info; |
| mWallpaper = wallpaper; |
| mClientUid = clientUid; |
| initDisplayState(); |
| } |
| |
| private void initDisplayState() { |
| // Do not initialize fallback wallpaper |
| if (!mWallpaper.equals(mFallbackWallpaper)) { |
| if (supportsMultiDisplay(this)) { |
| // The system wallpaper is image wallpaper or it can supports multiple displays. |
| appendConnectorWithCondition(this::isUsableDisplay); |
| } else { |
| // The system wallpaper does not support multiple displays, so just attach it on |
| // default display. |
| mDisplayConnector.append(DEFAULT_DISPLAY, |
| new DisplayConnector(DEFAULT_DISPLAY)); |
| } |
| } |
| } |
| |
| private void appendConnectorWithCondition(Predicate<Display> tester) { |
| final Display[] displays = mDisplayManager.getDisplays(); |
| for (Display display : displays) { |
| if (tester.test(display)) { |
| final int displayId = display.getDisplayId(); |
| final DisplayConnector connector = mDisplayConnector.get(displayId); |
| if (connector == null) { |
| mDisplayConnector.append(displayId, |
| new DisplayConnector(displayId)); |
| } |
| } |
| } |
| } |
| |
| private boolean isUsableDisplay(Display display) { |
| if (display == null || !display.hasAccess(mClientUid)) { |
| return false; |
| } |
| final int displayId = display.getDisplayId(); |
| return displayId == DEFAULT_DISPLAY |
| || mWindowManagerInternal.shouldShowSystemDecorOnDisplay(displayId); |
| } |
| |
| void forEachDisplayConnector(Consumer<DisplayConnector> action) { |
| for (int i = mDisplayConnector.size() - 1; i >= 0; i--) { |
| final DisplayConnector connector = mDisplayConnector.valueAt(i); |
| action.accept(connector); |
| } |
| } |
| |
| int getConnectedEngineSize() { |
| int engineSize = 0; |
| for (int i = mDisplayConnector.size() - 1; i >= 0; i--) { |
| final DisplayConnector connector = mDisplayConnector.valueAt(i); |
| if (connector.mEngine != null) engineSize++; |
| } |
| return engineSize; |
| } |
| |
| DisplayConnector getDisplayConnectorOrCreate(int displayId) { |
| DisplayConnector connector = mDisplayConnector.get(displayId); |
| if (connector == null) { |
| final Display display = mDisplayManager.getDisplay(displayId); |
| if (isUsableDisplay(display)) { |
| connector = new DisplayConnector(displayId); |
| mDisplayConnector.append(displayId, connector); |
| } |
| } |
| return connector; |
| } |
| |
| boolean containsDisplay(int displayId) { |
| return mDisplayConnector.get(displayId) != null; |
| } |
| |
| void removeDisplayConnector(int displayId) { |
| final DisplayConnector connector = mDisplayConnector.get(displayId); |
| if (connector != null) { |
| mDisplayConnector.remove(displayId); |
| } |
| } |
| |
| @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. |
| if (!mWallpaper.equals(mFallbackWallpaper)) { |
| saveSettingsLocked(mWallpaper.userId); |
| } |
| FgThread.getHandler().removeCallbacks(mResetRunnable); |
| } |
| } |
| } |
| |
| @Override |
| public void onServiceDisconnected(ComponentName name) { |
| synchronized (mLock) { |
| Slog.w(TAG, "Wallpaper service gone: " + name); |
| if (!Objects.equals(name, mWallpaper.wallpaperComponent)) { |
| Slog.e(TAG, "Does not match expected wallpaper component " |
| + mWallpaper.wallpaperComponent); |
| } |
| mService = null; |
| forEachDisplayConnector(connector -> connector.mEngine = null); |
| if (mWallpaper.connection == this) { |
| // There is an inherent ordering race between this callback and the |
| // package monitor that receives notice that a package is being updated, |
| // so we cannot quite trust at this moment that we know for sure that |
| // this is not an update. If we think this is a genuine non-update |
| // wallpaper outage, we do our "wait for reset" work as a continuation, |
| // a short time in the future, specifically to allow any pending package |
| // update message on this same looper thread to be processed. |
| if (!mWallpaper.wallpaperUpdating) { |
| mContext.getMainThreadHandler().postDelayed(() -> processDisconnect(this), |
| 1000); |
| } |
| } |
| } |
| } |
| |
| public void scheduleTimeoutLocked() { |
| // If we didn't reset it right away, do so after we couldn't connect to |
| // it for an extended amount of time to avoid having a black wallpaper. |
| final Handler fgHandler = FgThread.getHandler(); |
| fgHandler.removeCallbacks(mResetRunnable); |
| fgHandler.postDelayed(mResetRunnable, WALLPAPER_RECONNECT_TIMEOUT_MS); |
| if (DEBUG_LIVE) { |
| Slog.i(TAG, |
| "Started wallpaper reconnect timeout for " + mWallpaper.wallpaperComponent); |
| } |
| } |
| |
| private void processDisconnect(final ServiceConnection connection) { |
| synchronized (mLock) { |
| // The wallpaper disappeared. If this isn't a system-default one, track |
| // crashes and fall back to default if it continues to misbehave. |
| if (connection == mWallpaper.connection) { |
| final ComponentName wpService = mWallpaper.wallpaperComponent; |
| if (!mWallpaper.wallpaperUpdating |
| && mWallpaper.userId == mCurrentUserId |
| && !Objects.equals(mDefaultWallpaperComponent, wpService) |
| && !Objects.equals(mImageWallpaper, wpService)) { |
| // 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(); |
| |
| clearWallpaperComponentLocked(mWallpaper); |
| if (bindWallpaperComponentLocked( |
| wpService, false, false, mWallpaper, null)) { |
| mWallpaper.connection.scheduleTimeoutLocked(); |
| } else { |
| Slog.w(TAG, "Reverting to built-in wallpaper!"); |
| clearWallpaperLocked(true, FLAG_SYSTEM, mWallpaper.userId, null); |
| } |
| } |
| final String flattened = wpService.flattenToString(); |
| EventLog.writeEvent(EventLogTags.WP_WALLPAPER_CRASHED, |
| flattened.substring(0, Math.min(flattened.length(), |
| MAX_WALLPAPER_COMPONENT_LOG_LENGTH))); |
| } |
| } else { |
| if (DEBUG_LIVE) { |
| Slog.i(TAG, "Wallpaper changed during disconnect tracking; ignoring"); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Called by a live wallpaper if its colors have changed. |
| * @param primaryColors representation of wallpaper primary colors |
| * @param displayId for which display |
| */ |
| @Override |
| public void onWallpaperColorsChanged(WallpaperColors primaryColors, int displayId) { |
| int which; |
| synchronized (mLock) { |
| // Do not broadcast changes on ImageWallpaper since it's handled |
| // internally by this class. |
| if (mImageWallpaper.equals(mWallpaper.wallpaperComponent)) { |
| return; |
| } |
| |
| mWallpaper.primaryColors = primaryColors; |
| |
| // Live wallpapers always are system wallpapers. |
| which = FLAG_SYSTEM; |
| // It's also the lock screen wallpaper when we don't have a bitmap in there. |
| if (displayId == DEFAULT_DISPLAY) { |
| final WallpaperData lockedWallpaper = mLockWallpaperMap.get(mWallpaper.userId); |
| if (lockedWallpaper == null) { |
| which |= FLAG_LOCK; |
| } |
| } |
| } |
| if (which != 0) { |
| notifyWallpaperColorsChangedOnDisplay(mWallpaper, which, displayId); |
| } |
| } |
| |
| @Override |
| public void attachEngine(IWallpaperEngine engine, int displayId) { |
| synchronized (mLock) { |
| final DisplayConnector connector = getDisplayConnectorOrCreate(displayId); |
| if (connector == null) { |
| try { |
| engine.destroy(); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failed to destroy engine", e); |
| } |
| return; |
| } |
| connector.mEngine = engine; |
| connector.ensureStatusHandled(); |
| |
| // TODO(multi-display) TBD. |
| if (mInfo != null && mInfo.supportsAmbientMode() && displayId == DEFAULT_DISPLAY) { |
| try { |
| connector.mEngine.setInAmbientMode(mInAmbientMode, 0L /* duration */); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failed to set ambient mode state", e); |
| } |
| } |
| try { |
| // This will trigger onComputeColors in the wallpaper engine. |
| // It's fine to be locked in here since the binder is oneway. |
| connector.mEngine.requestWallpaperColors(); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failed to request wallpaper colors", e); |
| } |
| } |
| } |
| |
| @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) { |
| final ComponentName wpService = wallpaper.wallpaperComponent; |
| if (wpService != null && wpService.getPackageName().equals(packageName)) { |
| if (DEBUG_LIVE) { |
| Slog.i(TAG, "Wallpaper " + wpService + " update has finished"); |
| } |
| wallpaper.wallpaperUpdating = false; |
| clearWallpaperComponentLocked(wallpaper); |
| if (!bindWallpaperComponentLocked(wpService, false, false, |
| wallpaper, null)) { |
| Slog.w(TAG, "Wallpaper " + wpService |
| + " 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)) { |
| if (DEBUG_LIVE) { |
| Slog.i(TAG, "Wallpaper service " + wallpaper.wallpaperComponent |
| + " is updating"); |
| } |
| wallpaper.wallpaperUpdating = true; |
| if (wallpaper.connection != null) { |
| FgThread.getHandler().removeCallbacks( |
| wallpaper.connection.mResetRunnable); |
| } |
| } |
| } |
| } |
| } |
| |
| @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, |
| PackageManager.MATCH_DIRECT_BOOT_AWARE |
| | PackageManager.MATCH_DIRECT_BOOT_UNAWARE); |
| } 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, |
| PackageManager.MATCH_DIRECT_BOOT_AWARE |
| | PackageManager.MATCH_DIRECT_BOOT_UNAWARE); |
| } catch (NameNotFoundException e) { |
| wallpaper.nextWallpaperComponent = null; |
| } |
| } |
| return changed; |
| } |
| } |
| |
| public WallpaperManagerService(Context context) { |
| if (DEBUG) Slog.v(TAG, "WallpaperService startup"); |
| mContext = context; |
| mShuttingDown = false; |
| mImageWallpaper = ComponentName.unflattenFromString( |
| context.getResources().getString(R.string.image_wallpaper_component)); |
| mDefaultWallpaperComponent = WallpaperManager.getDefaultWallpaperComponent(context); |
| mIWindowManager = IWindowManager.Stub.asInterface( |
| ServiceManager.getService(Context.WINDOW_SERVICE)); |
| mWindowManagerInternal = LocalServices.getService(WindowManagerInternal.class); |
| mIPackageManager = AppGlobals.getPackageManager(); |
| mAppOpsManager = (AppOpsManager) mContext.getSystemService(Context.APP_OPS_SERVICE); |
| mDisplayManager = mContext.getSystemService(DisplayManager.class); |
| mDisplayManager.registerDisplayListener(mDisplayListener, null /* handler */); |
| mMonitor = new MyPackageMonitor(); |
| mColorsChangedListeners = new SparseArray<>(); |
| |
| LocalServices.addService(WallpaperManagerInternal.class, new LocalService()); |
| } |
| |
| private final class LocalService extends WallpaperManagerInternal { |
| @Override |
| public void onDisplayReady(int displayId) { |
| onDisplayReadyInternal(displayId); |
| } |
| } |
| |
| void initialize() { |
| mMonitor.register(mContext, null, UserHandle.ALL, true); |
| getWallpaperDir(UserHandle.USER_SYSTEM).mkdirs(); |
| |
| // Initialize state from the persistent store, then guarantee that the |
| // WallpaperData for the system imagery is instantiated & active, creating |
| // it from defaults if necessary. |
| loadSettingsLocked(UserHandle.USER_SYSTEM, false); |
| getWallpaperSafeLocked(UserHandle.USER_SYSTEM, FLAG_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(); |
| } |
| } |
| |
| void systemReady() { |
| if (DEBUG) Slog.v(TAG, "systemReady"); |
| initialize(); |
| |
| 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"); |
| } |
| } |
| |
| IntentFilter userFilter = new IntentFilter(); |
| userFilter.addAction(Intent.ACTION_USER_REMOVED); |
| mContext.registerReceiver(new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| final String action = intent.getAction(); |
| if (Intent.ACTION_USER_REMOVED.equals(action)) { |
| onRemoveUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, |
| UserHandle.USER_NULL)); |
| } |
| } |
| }, userFilter); |
| |
| final IntentFilter shutdownFilter = new IntentFilter(Intent.ACTION_SHUTDOWN); |
| mContext.registerReceiver(new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| if (Intent.ACTION_SHUTDOWN.equals(intent.getAction())) { |
| if (DEBUG) { |
| Slog.i(TAG, "Shutting down"); |
| } |
| synchronized (mLock) { |
| mShuttingDown = true; |
| } |
| } |
| } |
| }, shutdownFilter); |
| |
| try { |
| ActivityManager.getService().registerUserSwitchObserver( |
| new UserSwitchObserver() { |
| @Override |
| public void onUserSwitching(int newUserId, IRemoteCallback reply) { |
| switchUser(newUserId, reply); |
| } |
| }, TAG); |
| } catch (RemoteException e) { |
| e.rethrowAsRuntimeException(); |
| } |
| } |
| |
| /** 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); |
| } |
| |
| @Override |
| public void onBootPhase(int phase) { |
| if (phase == SystemService.PHASE_ACTIVITY_MANAGER_READY) { |
| systemReady(); |
| } else if (phase == SystemService.PHASE_THIRD_PARTY_APPS_CAN_START) { |
| switchUser(UserHandle.USER_SYSTEM, null); |
| } |
| } |
| |
| @Override |
| public void onUnlockUser(final int userId) { |
| synchronized (mLock) { |
| if (mCurrentUserId == userId) { |
| if (mWaitingForUnlock) { |
| // the desired wallpaper is not direct-boot aware, load it now |
| final WallpaperData systemWallpaper = |
| getWallpaperSafeLocked(userId, FLAG_SYSTEM); |
| switchWallpaper(systemWallpaper, null); |
| } |
| |
| // Make sure that the SELinux labeling of all the relevant files is correct. |
| // This corrects for mislabeling bugs that might have arisen from move-to |
| // operations involving the wallpaper files. This isn't timing-critical, |
| // so we do it in the background to avoid holding up the user unlock operation. |
| if (!mUserRestorecon.get(userId)) { |
| mUserRestorecon.put(userId, true); |
| Runnable relabeler = new Runnable() { |
| @Override |
| public void run() { |
| final File wallpaperDir = getWallpaperDir(userId); |
| for (String filename : sPerUserFiles) { |
| File f = new File(wallpaperDir, filename); |
| if (f.exists()) { |
| SELinux.restorecon(f); |
| } |
| } |
| } |
| }; |
| BackgroundThread.getHandler().post(relabeler); |
| } |
| } |
| } |
| } |
| |
| 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(); |
| } |
| mUserRestorecon.delete(userId); |
| } |
| } |
| |
| void switchUser(int userId, IRemoteCallback reply) { |
| final WallpaperData systemWallpaper; |
| final WallpaperData lockWallpaper; |
| synchronized (mLock) { |
| if (mCurrentUserId == userId) { |
| return; |
| } |
| mCurrentUserId = userId; |
| systemWallpaper = getWallpaperSafeLocked(userId, FLAG_SYSTEM); |
| final WallpaperData tmpLockWallpaper = mLockWallpaperMap.get(userId); |
| lockWallpaper = tmpLockWallpaper == null ? systemWallpaper : tmpLockWallpaper; |
| // Not started watching yet, in case wallpaper data was loaded for other reasons. |
| if (systemWallpaper.wallpaperObserver == null) { |
| systemWallpaper.wallpaperObserver = new WallpaperObserver(systemWallpaper); |
| systemWallpaper.wallpaperObserver.startWatching(); |
| } |
| switchWallpaper(systemWallpaper, reply); |
| } |
| |
| // Offload color extraction to another thread since switchUser will be called |
| // from the main thread. |
| FgThread.getHandler().post(() -> { |
| notifyWallpaperColorsChanged(systemWallpaper, FLAG_SYSTEM); |
| notifyWallpaperColorsChanged(lockWallpaper, FLAG_LOCK); |
| notifyWallpaperColorsChanged(mFallbackWallpaper, FLAG_SYSTEM); |
| }); |
| } |
| |
| void switchWallpaper(WallpaperData wallpaper, IRemoteCallback reply) { |
| synchronized (mLock) { |
| mWaitingForUnlock = false; |
| final ComponentName cname = wallpaper.wallpaperComponent != null ? |
| wallpaper.wallpaperComponent : wallpaper.nextWallpaperComponent; |
| if (!bindWallpaperComponentLocked(cname, true, false, wallpaper, reply)) { |
| // We failed to bind the desired wallpaper, but that might |
| // happen if the wallpaper isn't direct-boot aware |
| ServiceInfo si = null; |
| try { |
| si = mIPackageManager.getServiceInfo(cname, |
| PackageManager.MATCH_DIRECT_BOOT_UNAWARE, wallpaper.userId); |
| } catch (RemoteException ignored) { |
| } |
| |
| if (si == null) { |
| Slog.w(TAG, "Failure starting previous wallpaper; clearing"); |
| clearWallpaperLocked(false, FLAG_SYSTEM, wallpaper.userId, reply); |
| } else { |
| Slog.w(TAG, "Wallpaper isn't direct boot aware; using fallback until unlocked"); |
| // We might end up persisting the current wallpaper data |
| // while locked, so pretend like the component was actually |
| // bound into place |
| wallpaper.wallpaperComponent = wallpaper.nextWallpaperComponent; |
| final WallpaperData fallback = new WallpaperData(wallpaper.userId, |
| WALLPAPER_LOCK_ORIG, WALLPAPER_LOCK_CROP); |
| ensureSaneWallpaperData(fallback, DEFAULT_DISPLAY); |
| bindWallpaperComponentLocked(mImageWallpaper, true, false, fallback, reply); |
| mWaitingForUnlock = true; |
| } |
| } |
| } |
| } |
| |
| @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) || !isSetWallpaperAllowed(callingPackage)) { |
| return; |
| } |
| userId = ActivityManager.handleIncomingUser(Binder.getCallingPid(), |
| Binder.getCallingUid(), userId, false, true, "clearWallpaper", null); |
| |
| WallpaperData data = null; |
| synchronized (mLock) { |
| clearWallpaperLocked(false, which, userId, null); |
| |
| if (which == FLAG_LOCK) { |
| data = mLockWallpaperMap.get(userId); |
| } |
| if (which == FLAG_SYSTEM || data == null) { |
| data = mWallpaperMap.get(userId); |
| } |
| } |
| |
| // When clearing a wallpaper, broadcast new valid colors |
| if (data != null) { |
| notifyWallpaperColorsChanged(data, which); |
| notifyWallpaperColorsChanged(mFallbackWallpaper, FLAG_SYSTEM); |
| } |
| } |
| |
| 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 clear"); |
| } |
| |
| 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, false); |
| 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.primaryColors = null; |
| 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, false); |
| wd = mWallpaperMap.get(user.id); |
| } |
| if (wd != null && name.equals(wd.name)) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| private boolean isValidDisplay(int displayId) { |
| return mDisplayManager.getDisplay(displayId) != null; |
| } |
| |
| /** |
| * Sets the dimension hint for the wallpaper. These hints indicate the desired |
| * minimum width and height for the wallpaper in a particular display. |
| */ |
| public void setDimensionHints(int width, int height, String callingPackage, int displayId) |
| 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"); |
| } |
| |
| if (!isValidDisplay(displayId)) { |
| throw new IllegalArgumentException("Cannot find display with id=" + displayId); |
| } |
| |
| final DisplayData wpdData = getDisplayDataOrCreate(displayId); |
| if (width != wpdData.mWidth || height != wpdData.mHeight) { |
| wpdData.mWidth = width; |
| wpdData.mHeight = height; |
| if (displayId == DEFAULT_DISPLAY) saveSettingsLocked(userId); |
| if (mCurrentUserId != userId) return; // Don't change the properties now |
| if (wallpaper.connection != null) { |
| final WallpaperConnection.DisplayConnector connector = wallpaper.connection |
| .getDisplayConnectorOrCreate(displayId); |
| final IWallpaperEngine engine = connector != null ? connector.mEngine : null; |
| if (engine != null) { |
| try { |
| engine.setDesiredSize(width, height); |
| } catch (RemoteException e) { |
| } |
| notifyCallbacksLocked(wallpaper); |
| } else if (wallpaper.connection.mService != null && connector != 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. |
| connector.mDimensionsChanged = true; |
| } |
| } |
| } |
| } |
| } |
| |
| /** |
| * Returns the desired minimum width for the wallpaper in a particular display. |
| */ |
| public int getWidthHint(int displayId) throws RemoteException { |
| synchronized (mLock) { |
| if (!isValidDisplay(displayId)) { |
| throw new IllegalArgumentException("Cannot find display with id=" + displayId); |
| } |
| WallpaperData wallpaper = mWallpaperMap.get(UserHandle.getCallingUserId()); |
| if (wallpaper != null) { |
| final DisplayData wpdData = getDisplayDataOrCreate(displayId); |
| return wpdData.mWidth; |
| } else { |
| return 0; |
| } |
| } |
| } |
| |
| /** |
| * Returns the desired minimum height for the wallpaper in a particular display. |
| */ |
| public int getHeightHint(int displayId) throws RemoteException { |
| synchronized (mLock) { |
| if (!isValidDisplay(displayId)) { |
| throw new IllegalArgumentException("Cannot find display with id=" + displayId); |
| } |
| WallpaperData wallpaper = mWallpaperMap.get(UserHandle.getCallingUserId()); |
| if (wallpaper != null) { |
| final DisplayData wpdData = getDisplayDataOrCreate(displayId); |
| return wpdData.mHeight; |
| } else { |
| return 0; |
| } |
| } |
| } |
| |
| /** |
| * Sets extra padding that we would like the wallpaper to have outside of the display. |
| */ |
| public void setDisplayPadding(Rect padding, String callingPackage, int displayId) { |
| checkPermission(android.Manifest.permission.SET_WALLPAPER_HINTS); |
| if (!isWallpaperSupported(callingPackage)) { |
| return; |
| } |
| synchronized (mLock) { |
| if (!isValidDisplay(displayId)) { |
| throw new IllegalArgumentException("Cannot find display with id=" + displayId); |
| } |
| 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); |
| } |
| |
| final DisplayData wpdData = getDisplayDataOrCreate(displayId); |
| if (!padding.equals(wpdData.mPadding)) { |
| wpdData.mPadding.set(padding); |
| if (displayId == DEFAULT_DISPLAY) saveSettingsLocked(userId); |
| if (mCurrentUserId != userId) return; // Don't change the properties now |
| if (wallpaper.connection != null) { |
| final WallpaperConnection.DisplayConnector connector = wallpaper.connection |
| .getDisplayConnectorOrCreate(displayId); |
| final IWallpaperEngine engine = connector != null ? connector.mEngine : null; |
| if (engine != null) { |
| try { |
| engine.setDisplayPadding(padding); |
| } catch (RemoteException e) { |
| } |
| notifyCallbacksLocked(wallpaper); |
| } else if (wallpaper.connection.mService != null && connector != 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. |
| connector.mPaddingChanged = true; |
| } |
| } |
| } |
| } |
| } |
| |
| private void enforceCallingOrSelfPermissionAndAppOp(String permission, final String callingPkg, |
| final int callingUid, String message) { |
| mContext.enforceCallingOrSelfPermission(permission, message); |
| |
| final String opName = AppOpsManager.permissionToOp(permission); |
| if (opName != null) { |
| final int appOpMode = mAppOpsManager.noteOp(opName, callingUid, callingPkg); |
| if (appOpMode != AppOpsManager.MODE_ALLOWED) { |
| throw new SecurityException( |
| message + ": " + callingPkg + " is not allowed to " + permission); |
| } |
| } |
| } |
| |
| @Override |
| public ParcelFileDescriptor getWallpaper(String callingPkg, IWallpaperManagerCallback cb, |
| final int which, Bundle outParams, int wallpaperUserId) { |
| final int hasPrivilege = mContext.checkCallingOrSelfPermission( |
| android.Manifest.permission.READ_WALLPAPER_INTERNAL); |
| if (hasPrivilege != PackageManager.PERMISSION_GRANTED) { |
| enforceCallingOrSelfPermissionAndAppOp(android.Manifest.permission.READ_EXTERNAL_STORAGE, |
| callingPkg, Binder.getCallingUid(), "read wallpaper"); |
| } |
| |
| 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) { |
| // There is no established wallpaper imagery of this type (expected |
| // only for lock wallpapers; a system WallpaperData is established at |
| // user switch) |
| return null; |
| } |
| // Only for default display. |
| final DisplayData wpdData = getDisplayDataOrCreate(DEFAULT_DISPLAY); |
| try { |
| if (outParams != null) { |
| outParams.putInt("width", wpdData.mWidth); |
| outParams.putInt("height", wpdData.mHeight); |
| } |
| 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) { |
| userId = ActivityManager.handleIncomingUser(Binder.getCallingPid(), |
| Binder.getCallingUid(), userId, false, true, "getWallpaperInfo", null); |
| 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 void registerWallpaperColorsCallback(IWallpaperManagerCallback cb, int userId, |
| int displayId) { |
| userId = ActivityManager.handleIncomingUser(Binder.getCallingPid(), Binder.getCallingUid(), |
| userId, true, true, "registerWallpaperColorsCallback", null); |
| synchronized (mLock) { |
| SparseArray<RemoteCallbackList<IWallpaperManagerCallback>> |
| userDisplayColorsChangedListeners = mColorsChangedListeners.get(userId); |
| if (userDisplayColorsChangedListeners == null) { |
| userDisplayColorsChangedListeners = new SparseArray<>(); |
| mColorsChangedListeners.put(userId, userDisplayColorsChangedListeners); |
| } |
| RemoteCallbackList<IWallpaperManagerCallback> displayChangedListeners = |
| userDisplayColorsChangedListeners.get(displayId); |
| if (displayChangedListeners == null) { |
| displayChangedListeners = new RemoteCallbackList<>(); |
| userDisplayColorsChangedListeners.put(displayId, displayChangedListeners); |
| } |
| displayChangedListeners.register(cb); |
| } |
| } |
| |
| @Override |
| public void unregisterWallpaperColorsCallback(IWallpaperManagerCallback cb, int userId, |
| int displayId) { |
| userId = ActivityManager.handleIncomingUser(Binder.getCallingPid(), Binder.getCallingUid(), |
| userId, true, true, "unregisterWallpaperColorsCallback", null); |
| synchronized (mLock) { |
| SparseArray<RemoteCallbackList<IWallpaperManagerCallback>> |
| userDisplayColorsChangedListeners = mColorsChangedListeners.get(userId); |
| if (userDisplayColorsChangedListeners != null) { |
| RemoteCallbackList<IWallpaperManagerCallback> displayChangedListeners = |
| userDisplayColorsChangedListeners.get(displayId); |
| if (displayChangedListeners != null) { |
| displayChangedListeners.unregister(cb); |
| } |
| } |
| } |
| } |
| |
| /** |
| * TODO(multi-display) Extends this method with specific display. |
| * Propagate ambient state to wallpaper engine. |
| * |
| * @param inAmbientMode {@code true} when in ambient mode, {@code false} otherwise. |
| * @param animationDuration Duration of the animation, or 0 when immediate. |
| */ |
| public void setInAmbientMode(boolean inAmbientMode, long animationDuration) { |
| final IWallpaperEngine engine; |
| synchronized (mLock) { |
| mInAmbientMode = inAmbientMode; |
| final WallpaperData data = mWallpaperMap.get(mCurrentUserId); |
| // The wallpaper info is null for image wallpaper, also use the engine in this case. |
| if (data != null && data.connection != null && (data.connection.mInfo == null |
| || data.connection.mInfo.supportsAmbientMode())) { |
| // TODO(multi-display) Extends this method with specific display. |
| engine = data.connection.getDisplayConnectorOrCreate(DEFAULT_DISPLAY).mEngine; |
| } else { |
| engine = null; |
| } |
| } |
| |
| if (engine != null) { |
| try { |
| engine.setInAmbientMode(inAmbientMode, animationDuration); |
| } catch (RemoteException e) { |
| // Cannot talk to wallpaper engine. |
| } |
| } |
| } |
| |
| @Override |
| public boolean setLockWallpaperCallback(IWallpaperManagerCallback cb) { |
| checkPermission(android.Manifest.permission.INTERNAL_SYSTEM_WINDOW); |
| synchronized (mLock) { |
| mKeyguardListener = cb; |
| } |
| return true; |
| } |
| |
| @Override |
| public WallpaperColors getWallpaperColors(int which, int userId, int displayId) |
| throws RemoteException { |
| if (which != FLAG_LOCK && which != FLAG_SYSTEM) { |
| throw new IllegalArgumentException("which should be either FLAG_LOCK or FLAG_SYSTEM"); |
| } |
| userId = ActivityManager.handleIncomingUser(Binder.getCallingPid(), Binder.getCallingUid(), |
| userId, false, true, "getWallpaperColors", null); |
| |
| WallpaperData wallpaperData = null; |
| boolean shouldExtract; |
| |
| synchronized (mLock) { |
| if (which == FLAG_LOCK) { |
| wallpaperData = mLockWallpaperMap.get(userId); |
| } |
| |
| // Try to get the system wallpaper anyway since it might |
| // also be the lock screen wallpaper |
| if (wallpaperData == null) { |
| wallpaperData = findWallpaperAtDisplay(userId, displayId); |
| } |
| |
| if (wallpaperData == null) { |
| return null; |
| } |
| shouldExtract = wallpaperData.primaryColors == null; |
| } |
| |
| if (shouldExtract) { |
| extractColors(wallpaperData); |
| } |
| |
| synchronized (mLock) { |
| return wallpaperData.primaryColors; |
| } |
| } |
| |
| private WallpaperData findWallpaperAtDisplay(int userId, int displayId) { |
| if (mFallbackWallpaper != null && mFallbackWallpaper.connection != null |
| && mFallbackWallpaper.connection.containsDisplay(displayId)) { |
| return mFallbackWallpaper; |
| } else { |
| return mWallpaperMap.get(userId); |
| } |
| } |
| |
| @Override |
| public ParcelFileDescriptor setWallpaper(String name, String callingPackage, |
| Rect cropHint, boolean allowBackup, Bundle extras, int which, |
| IWallpaperManagerCallback completion, int userId) { |
| userId = ActivityManager.handleIncomingUser(getCallingPid(), getCallingUid(), userId, |
| false /* all */, true /* full */, "changing wallpaper", null /* pkg */); |
| checkPermission(android.Manifest.permission.SET_WALLPAPER); |
| |
| if ((which & (FLAG_LOCK|FLAG_SYSTEM)) == 0) { |
| final String msg = "Must specify a valid wallpaper category to set"; |
| Slog.e(TAG, msg); |
| throw new IllegalArgumentException(msg); |
| } |
| |
| if (!isWallpaperSupported(callingPackage) || !isSetWallpaperAllowed(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) { |
| throw new IllegalArgumentException("Invalid crop rect supplied: " + cropHint); |
| } |
| } |
| |
| synchronized (mLock) { |
| if (DEBUG) Slog.v(TAG, "setWallpaper which=0x" + Integer.toHexString(which)); |
| WallpaperData wallpaper; |
| |
| /* If we're setting system but not lock, and lock is currently sharing the system |
| * wallpaper, we need to migrate that image over to being lock-only before |
| * the caller here writes new bitmap data. |
| */ |
| if (which == FLAG_SYSTEM && mLockWallpaperMap.get(userId) == null) { |
| if (DEBUG) { |
| Slog.i(TAG, "Migrating system->lock to preserve"); |
| } |
| migrateSystemToLockWallpaperLocked(userId); |
| } |
| |
| 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); |
| wallpaper.allowBackup = allowBackup; |
| } |
| return pfd; |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| } |
| |
| private void migrateSystemToLockWallpaperLocked(int userId) { |
| WallpaperData sysWP = mWallpaperMap.get(userId); |
| if (sysWP == null) { |
| if (DEBUG) { |
| Slog.i(TAG, "No system wallpaper? Not tracking for lock-only"); |
| } |
| return; |
| } |
| |
| // We know a-priori that there is no lock-only wallpaper currently |
| WallpaperData lockWP = new WallpaperData(userId, |
| WALLPAPER_LOCK_ORIG, WALLPAPER_LOCK_CROP); |
| lockWP.wallpaperId = sysWP.wallpaperId; |
| lockWP.cropHint.set(sysWP.cropHint); |
| lockWP.allowBackup = sysWP.allowBackup; |
| lockWP.primaryColors = sysWP.primaryColors; |
| |
| // Migrate the bitmap files outright; no need to copy |
| try { |
| Os.rename(sysWP.wallpaperFile.getAbsolutePath(), lockWP.wallpaperFile.getAbsolutePath()); |
| Os.rename(sysWP.cropFile.getAbsolutePath(), lockWP.cropFile.getAbsolutePath()); |
| } catch (ErrnoException e) { |
| Slog.e(TAG, "Can't migrate system wallpaper: " + e.getMessage()); |
| lockWP.wallpaperFile.delete(); |
| lockWP.cropFile.delete(); |
| return; |
| } |
| |
| mLockWallpaperMap.put(userId, lockWP); |
| } |
| |
| 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); |
| } |
| // Nullify field to require new computation |
| wallpaper.primaryColors = null; |
| 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, |
| int userId) { |
| |
| if (isWallpaperSupported(callingPackage) && isSetWallpaperAllowed(callingPackage)) { |
| setWallpaperComponent(name, userId); |
| } |
| } |
| |
| // ToDo: Remove this version of the function |
| @Override |
| public void setWallpaperComponent(ComponentName name) { |
| setWallpaperComponent(name, UserHandle.getCallingUserId()); |
| } |
| |
| private void setWallpaperComponent(ComponentName name, int userId) { |
| userId = ActivityManager.handleIncomingUser(getCallingPid(), getCallingUid(), userId, |
| false /* all */, true /* full */, "changing live wallpaper", null /* pkg */); |
| checkPermission(android.Manifest.permission.SET_WALLPAPER_COMPONENT); |
| |
| int which = FLAG_SYSTEM; |
| boolean shouldNotifyColors = false; |
| WallpaperData wallpaper; |
| |
| synchronized (mLock) { |
| if (DEBUG) Slog.v(TAG, "setWallpaperComponent name=" + name); |
| wallpaper = mWallpaperMap.get(userId); |
| if (wallpaper == null) { |
| throw new IllegalStateException("Wallpaper not yet initialized for user " + userId); |
| } |
| final long ident = Binder.clearCallingIdentity(); |
| |
| // Live wallpapers can't be specified for keyguard. If we're using a static |
| // system+lock image currently, migrate the system wallpaper to be a lock-only |
| // image as part of making a different live component active as the system |
| // wallpaper. |
| if (mImageWallpaper.equals(wallpaper.wallpaperComponent)) { |
| if (mLockWallpaperMap.get(userId) == null) { |
| // We're using the static imagery and there is no lock-specific image in place, |
| // therefore it's a shared system+lock image that we need to migrate. |
| migrateSystemToLockWallpaperLocked(userId); |
| } |
| } |
| |
| // New live wallpaper is also a lock wallpaper if nothing is set |
| if (mLockWallpaperMap.get(userId) == null) { |
| which |= FLAG_LOCK; |
| } |
| |
| try { |
| wallpaper.imageWallpaperPending = false; |
| boolean same = changingToSame(name, wallpaper); |
| if (bindWallpaperComponentLocked(name, false, true, wallpaper, null)) { |
| if (!same) { |
| wallpaper.primaryColors = null; |
| } |
| wallpaper.wallpaperId = makeWallpaperIdLocked(); |
| notifyCallbacksLocked(wallpaper); |
| shouldNotifyColors = true; |
| } |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| if (shouldNotifyColors) { |
| notifyWallpaperColorsChanged(wallpaper, which); |
| notifyWallpaperColorsChanged(mFallbackWallpaper, FLAG_SYSTEM); |
| } |
| } |
| |
| private boolean changingToSame(ComponentName componentName, WallpaperData wallpaper) { |
| if (wallpaper.connection != null) { |
| if (wallpaper.wallpaperComponent == null) { |
| if (componentName == null) { |
| if (DEBUG) Slog.v(TAG, "changingToSame: 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; |
| } |
| } |
| return false; |
| } |
| |
| private boolean bindWallpaperComponentLocked(ComponentName componentName, boolean force, |
| boolean fromUser, WallpaperData wallpaper, IRemoteCallback reply) { |
| if (DEBUG_LIVE) { |
| Slog.v(TAG, "bindWallpaperComponentLocked: componentName=" + componentName); |
| } |
| // Has the component changed? |
| if (!force && changingToSame(componentName, wallpaper)) { |
| return true; |
| } |
| |
| try { |
| if (componentName == null) { |
| componentName = mDefaultWallpaperComponent; |
| if (componentName == null) { |
| // Fall back to static image wallpaper |
| componentName = mImageWallpaper; |
| //clearWallpaperComponentLocked(); |
| //return; |
| if (DEBUG_LIVE) Slog.v(TAG, "No default component; 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 have " |
| + 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; |
| } |
| } |
| |
| if (wi != null && wi.supportsAmbientMode()) { |
| final int hasPrivilege = mIPackageManager.checkPermission( |
| android.Manifest.permission.AMBIENT_WALLPAPER, wi.getPackageName(), |
| serviceUserId); |
| if (hasPrivilege != PackageManager.PERMISSION_GRANTED) { |
| String msg = "Selected service does not have " |
| + android.Manifest.permission.AMBIENT_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); |
| final int componentUid = mIPackageManager.getPackageUid(componentName.getPackageName(), |
| MATCH_DIRECT_BOOT_AUTO, wallpaper.userId); |
| WallpaperConnection newConn = new WallpaperConnection(wi, wallpaper, componentUid); |
| 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 |
| && !wallpaper.equals(mFallbackWallpaper)) { |
| detachWallpaperLocked(mLastWallpaper); |
| } |
| wallpaper.wallpaperComponent = componentName; |
| wallpaper.connection = newConn; |
| newConn.mReply = reply; |
| if (wallpaper.userId == mCurrentUserId && !wallpaper.equals(mFallbackWallpaper)) { |
| mLastWallpaper = wallpaper; |
| } |
| updateFallbackConnection(); |
| } 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; |
| } |
| |
| private 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; |
| } |
| mContext.unbindService(wallpaper.connection); |
| wallpaper.connection.forEachDisplayConnector( |
| WallpaperConnection.DisplayConnector::disconnectLocked); |
| wallpaper.connection.mService = null; |
| wallpaper.connection.mDisplayConnector.clear(); |
| wallpaper.connection = null; |
| if (wallpaper == mLastWallpaper) mLastWallpaper = null; |
| } |
| } |
| |
| private void clearWallpaperComponentLocked(WallpaperData wallpaper) { |
| wallpaper.wallpaperComponent = null; |
| detachWallpaperLocked(wallpaper); |
| } |
| |
| private void attachServiceLocked(WallpaperConnection conn, WallpaperData wallpaper) { |
| conn.forEachDisplayConnector(connector-> connector.connectLocked(conn, wallpaper)); |
| } |
| |
| 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 isSetWallpaperAllowed(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); |
| } |
| |
| @Override |
| public boolean isWallpaperBackupEligible(int which, int userId) { |
| if (Binder.getCallingUid() != Process.SYSTEM_UID) { |
| throw new SecurityException("Only the system may call isWallpaperBackupEligible"); |
| } |
| |
| WallpaperData wallpaper = (which == FLAG_LOCK) |
| ? mLockWallpaperMap.get(userId) |
| : mWallpaperMap.get(userId); |
| return (wallpaper != null) ? wallpaper.allowBackup : false; |
| } |
| |
| private void onDisplayReadyInternal(int displayId) { |
| synchronized (mLock) { |
| if (mLastWallpaper == null) { |
| return; |
| } |
| if (supportsMultiDisplay(mLastWallpaper.connection)) { |
| final WallpaperConnection.DisplayConnector connector = |
| mLastWallpaper.connection.getDisplayConnectorOrCreate(displayId); |
| if (connector == null) return; |
| connector.connectLocked(mLastWallpaper.connection, mLastWallpaper); |
| return; |
| } |
| // System wallpaper does not support multiple displays, attach this display to |
| // the fallback wallpaper. |
| if (mFallbackWallpaper != null) { |
| final WallpaperConnection.DisplayConnector connector = mFallbackWallpaper |
| .connection.getDisplayConnectorOrCreate(displayId); |
| if (connector == null) return; |
| connector.connectLocked(mFallbackWallpaper.connection, mFallbackWallpaper); |
| } else { |
| Slog.w(TAG, "No wallpaper can be added to the new display"); |
| } |
| } |
| } |
| |
| 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 { |
| if (DEBUG) { |
| Slog.v(TAG, "writeWallpaperAttributes id=" + wallpaper.wallpaperId); |
| } |
| final DisplayData wpdData = getDisplayDataOrCreate(DEFAULT_DISPLAY); |
| out.startTag(null, tag); |
| out.attribute(null, "id", Integer.toString(wallpaper.wallpaperId)); |
| out.attribute(null, "width", Integer.toString(wpdData.mWidth)); |
| out.attribute(null, "height", Integer.toString(wpdData.mHeight)); |
| |
| 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 (wpdData.mPadding.left != 0) { |
| out.attribute(null, "paddingLeft", Integer.toString(wpdData.mPadding.left)); |
| } |
| if (wpdData.mPadding.top != 0) { |
| out.attribute(null, "paddingTop", Integer.toString(wpdData.mPadding.top)); |
| } |
| if (wpdData.mPadding.right != 0) { |
| out.attribute(null, "paddingRight", Integer.toString(wpdData.mPadding.right)); |
| } |
| if (wpdData.mPadding.bottom != 0) { |
| out.attribute(null, "paddingBottom", Integer.toString(wpdData.mPadding.bottom)); |
| } |
| |
| if (wallpaper.primaryColors != null) { |
| int colorsCount = wallpaper.primaryColors.getMainColors().size(); |
| out.attribute(null, "colorsCount", Integer.toString(colorsCount)); |
| if (colorsCount > 0) { |
| for (int i = 0; i < colorsCount; i++) { |
| final Color wc = wallpaper.primaryColors.getMainColors().get(i); |
| out.attribute(null, "colorValue"+i, Integer.toString(wc.toArgb())); |
| } |
| } |
| out.attribute(null, "colorHints", |
| Integer.toString(wallpaper.primaryColors.getColorHints())); |
| } |
| |
| out.attribute(null, "name", wallpaper.name); |
| if (wallpaper.wallpaperComponent != null |
| && !wallpaper.wallpaperComponent.equals(mImageWallpaper)) { |
| out.attribute(null, "component", |
| wallpaper.wallpaperComponent.flattenToShortString()); |
| } |
| |
| if (wallpaper.allowBackup) { |
| out.attribute(null, "backup", "true"); |
| } |
| |
| out.endTag(null, tag); |
| } |
| |
| private void migrateFromOld() { |
| // Pre-N, what existed is the one we're now using as the display crop |
| File preNWallpaper = new File(getWallpaperDir(0), WALLPAPER_CROP); |
| // In the very-long-ago, imagery lived with the settings app |
| File originalWallpaper = new File(WallpaperBackupHelper.WALLPAPER_IMAGE_KEY); |
| File newWallpaper = new File(getWallpaperDir(0), WALLPAPER); |
| |
| // Migrations from earlier wallpaper image storage schemas |
| if (preNWallpaper.exists()) { |
| if (!newWallpaper.exists()) { |
| // we've got the 'wallpaper' crop file but not the nominal source image, |
| // so do the simple "just take everything" straight copy of legacy data |
| if (DEBUG) { |
| Slog.i(TAG, "Migrating wallpaper schema"); |
| } |
| FileUtils.copyFile(preNWallpaper, newWallpaper); |
| } // else we're in the usual modern case: both source & crop exist |
| } else if (originalWallpaper.exists()) { |
| // VERY old schema; make sure things exist and are in the right place |
| if (DEBUG) { |
| Slog.i(TAG, "Migrating antique wallpaper schema"); |
| } |
| File oldInfo = new File(WallpaperBackupHelper.WALLPAPER_INFO_KEY); |
| if (oldInfo.exists()) { |
| File newInfo = new File(getWallpaperDir(0), WALLPAPER_INFO); |
| oldInfo.renameTo(newInfo); |
| } |
| |
| FileUtils.copyFile(originalWallpaper, preNWallpaper); |
| originalWallpaper.renameTo(newWallpaper); |
| } |
| } |
| |
| 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. |
| * |
| * Important: this method loads settings to initialize the given user's wallpaper data if |
| * there is no current in-memory state. |
| */ |
| 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, false); |
| 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); |
| ensureSaneWallpaperData(wallpaper, DEFAULT_DISPLAY); |
| } 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); |
| ensureSaneWallpaperData(wallpaper, DEFAULT_DISPLAY); |
| } |
| } |
| } |
| return wallpaper; |
| } |
| |
| private void loadSettingsLocked(int userId, boolean keepDimensionHints) { |
| JournaledFile journal = makeJournaledFile(userId); |
| FileInputStream stream = null; |
| File file = journal.chooseForRead(); |
| |
| WallpaperData wallpaper = mWallpaperMap.get(userId); |
| if (wallpaper == null) { |
| // Do this once per boot |
| migrateFromOld(); |
| |
| wallpaper = new WallpaperData(userId, WALLPAPER, WALLPAPER_CROP); |
| wallpaper.allowBackup = true; |
| mWallpaperMap.put(userId, wallpaper); |
| if (!wallpaper.cropExists()) { |
| if (wallpaper.sourceExists()) { |
| generateCrop(wallpaper); |
| } else { |
| Slog.i(TAG, "No static wallpaper imagery; defaults will be shown"); |
| } |
| } |
| initializeFallbackWallpaper(); |
| } |
| boolean success = false; |
| final DisplayData wpdData = getDisplayDataOrCreate(DEFAULT_DISPLAY); |
| 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, keepDimensionHints); |
| |
| // 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:" + wpdData.mWidth); |
| Slog.v(TAG, "mHeight:" + wpdData.mHeight); |
| Slog.v(TAG, "cropRect:" + wallpaper.cropHint); |
| Slog.v(TAG, "primaryColors:" + wallpaper.primaryColors); |
| 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, false); |
| } |
| } |
| } 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.cropHint.set(0, 0, 0, 0); |
| wpdData.mPadding.set(0, 0, 0, 0); |
| wallpaper.name = ""; |
| |
| mLockWallpaperMap.remove(userId); |
| } else { |
| if (wallpaper.wallpaperId <= 0) { |
| wallpaper.wallpaperId = makeWallpaperIdLocked(); |
| if (DEBUG) { |
| Slog.w(TAG, "Didn't set wallpaper id in loadSettingsLocked(" + userId |
| + "); now " + wallpaper.wallpaperId); |
| } |
| } |
| } |
| |
| ensureSaneWallpaperDisplaySize(wpdData, DEFAULT_DISPLAY); |
| ensureSaneWallpaperData(wallpaper, DEFAULT_DISPLAY); |
| WallpaperData lockWallpaper = mLockWallpaperMap.get(userId); |
| if (lockWallpaper != null) { |
| ensureSaneWallpaperData(lockWallpaper, DEFAULT_DISPLAY); |
| } |
| } |
| |
| private void initializeFallbackWallpaper() { |
| if (mFallbackWallpaper == null) { |
| if (DEBUG) Slog.d(TAG, "Initialize fallback wallpaper"); |
| mFallbackWallpaper = new WallpaperData( |
| UserHandle.USER_SYSTEM, WALLPAPER, WALLPAPER_CROP); |
| mFallbackWallpaper.allowBackup = false; |
| mFallbackWallpaper.wallpaperId = makeWallpaperIdLocked(); |
| bindWallpaperComponentLocked(mImageWallpaper, true, false, mFallbackWallpaper, null); |
| } |
| } |
| |
| private void ensureSaneWallpaperData(WallpaperData wallpaper, int displayId) { |
| final DisplayData size = getDisplayDataOrCreate(displayId); |
| |
| if (displayId == DEFAULT_DISPLAY) { |
| // crop, if not previously specified |
| if (wallpaper.cropHint.width() <= 0 |
| || wallpaper.cropHint.height() <= 0) { |
| wallpaper.cropHint.set(0, 0, size.mWidth, size.mHeight); |
| } |
| } |
| } |
| |
| private void parseWallpaperAttributes(XmlPullParser parser, WallpaperData wallpaper, |
| boolean keepDimensionHints) { |
| 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(); |
| } |
| |
| final DisplayData wpData = getDisplayDataOrCreate(DEFAULT_DISPLAY); |
| |
| if (!keepDimensionHints) { |
| wpData.mWidth = Integer.parseInt(parser.getAttributeValue(null, "width")); |
| wpData.mHeight = 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); |
| wpData.mPadding.left = getAttributeInt(parser, "paddingLeft", 0); |
| wpData.mPadding.top = getAttributeInt(parser, "paddingTop", 0); |
| wpData.mPadding.right = getAttributeInt(parser, "paddingRight", 0); |
| wpData.mPadding.bottom = getAttributeInt(parser, "paddingBottom", 0); |
| int colorsCount = getAttributeInt(parser, "colorsCount", 0); |
| if (colorsCount > 0) { |
| Color primary = null, secondary = null, tertiary = null; |
| for (int i = 0; i < colorsCount; i++) { |
| Color color = Color.valueOf(getAttributeInt(parser, "colorValue" + i, 0)); |
| if (i == 0) { |
| primary = color; |
| } else if (i == 1) { |
| secondary = color; |
| } else if (i == 2) { |
| tertiary = color; |
| } else { |
| break; |
| } |
| } |
| int colorHints = getAttributeInt(parser, "colorHints", 0); |
| wallpaper.primaryColors = new WallpaperColors(primary, secondary, tertiary, colorHints); |
| } |
| wallpaper.name = parser.getAttributeValue(null, "name"); |
| wallpaper.allowBackup = "true".equals(parser.getAttributeValue(null, "backup")); |
| } |
| |
| // 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, false); |
| wallpaper = mWallpaperMap.get(UserHandle.USER_SYSTEM); |
| wallpaper.wallpaperId = makeWallpaperIdLocked(); // always bump id at restore |
| wallpaper.allowBackup = true; // by definition if it was restored |
| 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 |
| private 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 (!DumpUtils.checkDumpPermission(mContext, TAG, pw)) return; |
| |
| synchronized (mLock) { |
| pw.println("System wallpaper 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.println(" Display state:"); |
| forEachDisplayData(wpSize -> { |
| pw.print(" displayId="); |
| pw.println(wpSize.mDisplayId); |
| pw.print(" mWidth="); |
| pw.print(wpSize.mWidth); |
| pw.print(" mHeight="); |
| pw.println(wpSize.mHeight); |
| pw.print(" mPadding="); pw.println(wpSize.mPadding); |
| }); |
| pw.print(" mCropHint="); pw.println(wallpaper.cropHint); |
| pw.print(" mName="); pw.println(wallpaper.name); |
| pw.print(" mAllowBackup="); pw.println(wallpaper.allowBackup); |
| 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()); |
| } |
| conn.forEachDisplayConnector(connector -> { |
| pw.print(" mDisplayId="); |
| pw.println(connector.mDisplayId); |
| pw.print(" mToken="); |
| pw.println(connector.mToken); |
| pw.print(" mEngine="); |
| pw.println(connector.mEngine); |
| }); |
| pw.print(" mService="); |
| pw.println(conn.mService); |
| pw.print(" mLastDiedTime="); |
| pw.println(wallpaper.lastDiedTime - SystemClock.uptimeMillis()); |
| } |
| } |
| pw.println("Lock wallpaper state:"); |
| for (int i = 0; i < mLockWallpaperMap.size(); i++) { |
| WallpaperData wallpaper = mLockWallpaperMap.valueAt(i); |
| pw.print(" User "); pw.print(wallpaper.userId); |
| pw.print(": id="); pw.println(wallpaper.wallpaperId); |
| pw.print(" mCropHint="); pw.println(wallpaper.cropHint); |
| pw.print(" mName="); pw.println(wallpaper.name); |
| pw.print(" mAllowBackup="); pw.println(wallpaper.allowBackup); |
| } |
| pw.println("Fallback wallpaper state:"); |
| pw.print(" User "); pw.print(mFallbackWallpaper.userId); |
| pw.print(": id="); pw.println(mFallbackWallpaper.wallpaperId); |
| pw.print(" mCropHint="); pw.println(mFallbackWallpaper.cropHint); |
| pw.print(" mName="); pw.println(mFallbackWallpaper.name); |
| pw.print(" mAllowBackup="); pw.println(mFallbackWallpaper.allowBackup); |
| if (mFallbackWallpaper.connection != null) { |
| WallpaperConnection conn = mFallbackWallpaper.connection; |
| pw.print(" Fallback Wallpaper connection "); |
| pw.print(conn); |
| pw.println(":"); |
| if (conn.mInfo != null) { |
| pw.print(" mInfo.component="); |
| pw.println(conn.mInfo.getComponent()); |
| } |
| conn.forEachDisplayConnector(connector -> { |
| pw.print(" mDisplayId="); |
| pw.println(connector.mDisplayId); |
| pw.print(" mToken="); |
| pw.println(connector.mToken); |
| pw.print(" mEngine="); |
| pw.println(connector.mEngine); |
| }); |
| pw.print(" mService="); |
| pw.println(conn.mService); |
| pw.print(" mLastDiedTime="); |
| pw.println(mFallbackWallpaper.lastDiedTime - SystemClock.uptimeMillis()); |
| } |
| } |
| } |
| } |