| /* |
| * 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.Manifest.permission.INTERACT_ACROSS_USERS_FULL; |
| import static android.Manifest.permission.READ_WALLPAPER_INTERNAL; |
| import static android.app.ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND; |
| import static android.app.WallpaperManager.COMMAND_REAPPLY; |
| 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.content.pm.PackageManager.PERMISSION_GRANTED; |
| 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 static com.android.server.wallpaper.WallpaperDisplayHelper.DisplayData; |
| import static com.android.server.wallpaper.WallpaperUtils.RECORD_FILE; |
| import static com.android.server.wallpaper.WallpaperUtils.RECORD_LOCK_FILE; |
| import static com.android.server.wallpaper.WallpaperUtils.WALLPAPER; |
| import static com.android.server.wallpaper.WallpaperUtils.WALLPAPER_INFO; |
| import static com.android.server.wallpaper.WallpaperUtils.WALLPAPER_LOCK_ORIG; |
| import static com.android.server.wallpaper.WallpaperUtils.getWallpaperDir; |
| import static com.android.server.wallpaper.WallpaperUtils.makeWallpaperIdLocked; |
| |
| import android.annotation.NonNull; |
| import android.app.ActivityManager; |
| import android.app.ActivityOptions; |
| import android.app.AppGlobals; |
| import android.app.AppOpsManager; |
| import android.app.ILocalWallpaperColorConsumer; |
| 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.WallpaperManager.SetWallpaperFlags; |
| import android.app.admin.DevicePolicyManagerInternal; |
| 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.PackageManagerInternal; |
| import android.content.pm.ResolveInfo; |
| import android.content.pm.ServiceInfo; |
| import android.content.pm.UserInfo; |
| import android.graphics.Bitmap; |
| import android.graphics.BitmapFactory; |
| import android.graphics.Rect; |
| import android.graphics.RectF; |
| import android.hardware.display.DisplayManager; |
| import android.os.Binder; |
| import android.os.Bundle; |
| 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.RemoteCallbackList; |
| import android.os.RemoteException; |
| import android.os.ResultReceiver; |
| import android.os.SELinux; |
| import android.os.ShellCallback; |
| import android.os.SystemClock; |
| import android.os.SystemProperties; |
| import android.os.UserHandle; |
| import android.os.UserManager; |
| import android.os.storage.StorageManager; |
| 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.view.Display; |
| |
| import com.android.internal.R; |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.internal.content.PackageMonitor; |
| import com.android.internal.os.BackgroundThread; |
| import com.android.internal.util.DumpUtils; |
| import com.android.server.EventLogTags; |
| import com.android.server.FgThread; |
| import com.android.server.LocalServices; |
| import com.android.server.SystemService; |
| import com.android.server.pm.UserManagerInternal; |
| import com.android.server.utils.TimingsTraceAndSlog; |
| import com.android.server.wm.WindowManagerInternal; |
| |
| import org.xmlpull.v1.XmlPullParserException; |
| |
| import java.io.File; |
| import java.io.FileDescriptor; |
| import java.io.FileNotFoundException; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.PrintWriter; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.Map; |
| 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; |
| |
| private static final @NonNull RectF LOCAL_COLOR_BOUNDS = |
| new RectF(0, 0, 1, 1); |
| |
| 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 onUserUnlocking(@NonNull TargetUser user) { |
| if (mService != null) { |
| mService.onUnlockUser(user.getUserIdentifier()); |
| } |
| } |
| } |
| |
| private final Object mLock = new Object(); |
| /** True to enable a second engine for lock screen wallpaper when different from system wp. */ |
| private final boolean mIsLockscreenLiveWallpaperEnabled; |
| /** True to support different crops for different display dimensions */ |
| private final boolean mIsMultiCropEnabled; |
| /** Tracks wallpaper being migrated from system+lock to lock when setting static wp. */ |
| WallpaperDestinationChangeHandler mPendingMigrationViaStatic; |
| |
| /** |
| * 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; |
| |
| /** |
| * 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. |
| */ |
| 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); |
| } |
| |
| 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; |
| } |
| |
| // Handles static wallpaper changes generated by WallpaperObserver events when |
| // enableSeparateLockScreenEngine() is true. |
| private void updateWallpapers(int event, String 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 File changedFile = new File(mWallpaperDir, path); |
| final boolean sysWallpaperChanged = (mWallpaperFile.equals(changedFile)); |
| final boolean lockWallpaperChanged = (mWallpaperLockFile.equals(changedFile)); |
| final WallpaperData wallpaper = dataForEvent(sysWallpaperChanged, lockWallpaperChanged); |
| |
| final boolean moved = (event == MOVED_TO); |
| final boolean written = (event == CLOSE_WRITE || moved); |
| final boolean isMigration = moved && lockWallpaperChanged; |
| final boolean isRestore = moved && !isMigration; |
| final boolean isAppliedToLock = (wallpaper.mWhich & FLAG_LOCK) != 0; |
| final boolean needsUpdate = wallpaper.wallpaperComponent == null |
| || event != CLOSE_WRITE // includes the MOVED_TO case |
| || wallpaper.imageWallpaperPending; |
| |
| if (DEBUG) { |
| Slog.v(TAG, "Wallpaper file change: evt=" + event |
| + " path=" + path |
| + " sys=" + sysWallpaperChanged |
| + " lock=" + lockWallpaperChanged |
| + " imagePending=" + wallpaper.imageWallpaperPending |
| + " mWhich=0x" + Integer.toHexString(wallpaper.mWhich) |
| + " written=" + written |
| + " isMigration=" + isMigration |
| + " isRestore=" + isRestore |
| + " isAppliedToLock=" + isAppliedToLock |
| + " needsUpdate=" + needsUpdate); |
| } |
| |
| if (isMigration) { |
| // When separate lock screen engine is supported, migration will be handled by |
| // WallpaperDestinationChangeHandler. |
| return; |
| } |
| if (!(sysWallpaperChanged || lockWallpaperChanged)) { |
| return; |
| } |
| |
| int notifyColorsWhich = 0; |
| synchronized (mLock) { |
| notifyCallbacksLocked(wallpaper); |
| |
| if (!written || !needsUpdate) { |
| return; |
| } |
| |
| if (DEBUG) { |
| Slog.v(TAG, "Setting new static wallpaper: which=" + wallpaper.mWhich); |
| } |
| |
| WallpaperDestinationChangeHandler localSync = mPendingMigrationViaStatic; |
| mPendingMigrationViaStatic = null; |
| // 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. |
| SELinux.restorecon(changedFile); |
| if (isRestore) { |
| // 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, "Wallpaper restore; reloading metadata"); |
| } |
| loadSettingsLocked(wallpaper.userId, true, FLAG_SYSTEM | FLAG_LOCK); |
| } |
| if (DEBUG) { |
| Slog.v(TAG, "Wallpaper written; generating crop"); |
| } |
| mWallpaperCropper.generateCrop(wallpaper); |
| if (DEBUG) { |
| Slog.v(TAG, "Crop done; invoking completion callback"); |
| } |
| wallpaper.imageWallpaperPending = false; |
| |
| if (sysWallpaperChanged) { |
| if (DEBUG) { |
| Slog.v(TAG, "Home screen wallpaper changed"); |
| } |
| IRemoteCallback.Stub callback = new IRemoteCallback.Stub() { |
| @Override |
| public void sendResult(Bundle data) throws RemoteException { |
| if (DEBUG) { |
| Slog.d(TAG, "publish system wallpaper changed!"); |
| } |
| if (localSync != null) { |
| localSync.complete(); |
| } |
| notifyWallpaperChanged(wallpaper); |
| } |
| }; |
| |
| // If this was the system wallpaper, rebind... |
| bindWallpaperComponentLocked(mImageWallpaper, true, false, wallpaper, |
| callback); |
| notifyColorsWhich |= FLAG_SYSTEM; |
| } |
| |
| if (lockWallpaperChanged) { |
| // This is lock-only, so (re)bind to the static engine. |
| if (DEBUG) { |
| Slog.v(TAG, "Lock screen wallpaper changed"); |
| } |
| IRemoteCallback.Stub callback = new IRemoteCallback.Stub() { |
| @Override |
| public void sendResult(Bundle data) throws RemoteException { |
| if (DEBUG) { |
| Slog.d(TAG, "publish lock wallpaper changed!"); |
| } |
| if (localSync != null) { |
| localSync.complete(); |
| } |
| notifyWallpaperChanged(wallpaper); |
| } |
| }; |
| |
| bindWallpaperComponentLocked(mImageWallpaper, true /* force */, |
| false /* fromUser */, wallpaper, callback); |
| notifyColorsWhich |= FLAG_LOCK; |
| } else if (isAppliedToLock) { |
| // This is system-plus-lock: we need to wipe the lock bookkeeping since |
| // we're falling back to displaying the system wallpaper there. |
| if (DEBUG) { |
| Slog.v(TAG, "Lock screen wallpaper changed to same as home"); |
| } |
| final WallpaperData lockedWallpaper = mLockWallpaperMap.get( |
| mWallpaper.userId); |
| if (lockedWallpaper != null) { |
| detachWallpaperLocked(lockedWallpaper); |
| } |
| mLockWallpaperMap.remove(wallpaper.userId); |
| notifyColorsWhich |= FLAG_LOCK; |
| } |
| |
| saveSettingsLocked(wallpaper.userId); |
| // Notify the client immediately if only lockscreen wallpaper changed. |
| if (lockWallpaperChanged && !sysWallpaperChanged) { |
| notifyWallpaperChanged(wallpaper); |
| } |
| } |
| |
| // Outside of the lock since it will synchronize itself |
| if (notifyColorsWhich != 0) { |
| notifyWallpaperColorsChanged(wallpaper, notifyColorsWhich); |
| } |
| } |
| |
| // Handles static wallpaper changes generated by WallpaperObserver events when |
| // enableSeparateLockScreenEngine() is false. |
| // TODO(b/266818039) Remove this method |
| private void updateWallpapersLegacy(int event, String path) { |
| 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 |
| + " mWhich=0x" + Integer.toHexString(wallpaper.mWhich) |
| + " 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, FLAG_SYSTEM | FLAG_LOCK); |
| } |
| mWallpaperCropper.generateCrop(wallpaper); |
| if (DEBUG) { |
| Slog.v(TAG, "Crop done; invoking completion callback"); |
| } |
| wallpaper.imageWallpaperPending = false; |
| if (sysWallpaperChanged) { |
| IRemoteCallback.Stub callback = new IRemoteCallback.Stub() { |
| @Override |
| public void sendResult(Bundle data) throws RemoteException { |
| Slog.d(TAG, "publish system wallpaper changed!"); |
| notifyWallpaperChanged(wallpaper); |
| } |
| }; |
| // If this was the system wallpaper, rebind... |
| bindWallpaperComponentLocked(mImageWallpaper, true, |
| false, wallpaper, callback); |
| notifyColorsWhich |= FLAG_SYSTEM; |
| } |
| if (lockWallpaperChanged |
| || (wallpaper.mWhich & 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); |
| // Notify the client immediately if only lockscreen wallpaper changed. |
| if (lockWallpaperChanged && !sysWallpaperChanged) { |
| notifyWallpaperChanged(wallpaper); |
| } |
| } |
| } |
| } |
| } |
| |
| // Outside of the lock since it will synchronize itself |
| if (notifyColorsWhich != 0) { |
| notifyWallpaperColorsChanged(wallpaper, notifyColorsWhich); |
| } |
| } |
| |
| @Override |
| public void onEvent(int event, String path) { |
| if (path == null) { |
| return; |
| } |
| |
| if (mIsLockscreenLiveWallpaperEnabled) { |
| updateWallpapers(event, path); |
| } else { |
| updateWallpapersLegacy(event, path); |
| } |
| } |
| } |
| |
| private void notifyWallpaperChanged(WallpaperData wallpaper) { |
| // 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. |
| Slog.w(TAG, "onWallpaperChanged threw an exception", e); |
| } |
| } |
| } |
| |
| private void notifyLockWallpaperChanged() { |
| final IWallpaperManagerCallback cb = mKeyguardListener; |
| if (cb != null) { |
| try { |
| cb.onWallpaperChanged(); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failed to notify keyguard callback about wallpaper changes", e); |
| } |
| } |
| } |
| |
| void notifyWallpaperColorsChanged(@NonNull WallpaperData wallpaper, int which) { |
| if (DEBUG) { |
| Slog.i(TAG, "Notifying wallpaper colors changed"); |
| } |
| 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 || wallpaper.mIsColorExtractedFromDim; |
| } |
| |
| if (needsExtraction) { |
| extractColors(wallpaper); |
| } |
| notifyColorListeners(getAdjustedWallpaperColorsOnDimming(wallpaper), 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. |
| Slog.w(TAG, "onWallpaperColorsChanged() threw an exception", e); |
| } |
| } |
| |
| // Only shows Keyguard on default display |
| if (keyguardListener != null && displayId == DEFAULT_DISPLAY) { |
| try { |
| keyguardListener.onWallpaperColorsChanged(wallpaperColors, which, userId); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "keyguardListener.onWallpaperColorsChanged threw an exception", e); |
| } |
| } |
| } |
| |
| /** |
| * 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; |
| float dimAmount; |
| |
| synchronized (mLock) { |
| wallpaper.mIsColorExtractedFromDim = false; |
| } |
| |
| if (wallpaper.equals(mFallbackWallpaper)) { |
| synchronized (mLock) { |
| if (mFallbackWallpaper.primaryColors != null) return; |
| } |
| final WallpaperColors colors = extractDefaultImageWallpaperColors(wallpaper); |
| 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; |
| dimAmount = wallpaper.mWallpaperDimAmount; |
| } |
| |
| WallpaperColors colors = null; |
| if (cropFile != null) { |
| Bitmap bitmap = BitmapFactory.decodeFile(cropFile); |
| if (bitmap != null) { |
| colors = WallpaperColors.fromBitmap(bitmap, dimAmount); |
| bitmap.recycle(); |
| } |
| } else if (defaultImageWallpaper) { |
| // There is no crop and source file because this is default image wallpaper. |
| colors = extractDefaultImageWallpaperColors(wallpaper); |
| } |
| |
| 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(WallpaperData wallpaper) { |
| if (DEBUG) Slog.d(TAG, "Extract default image wallpaper colors"); |
| float dimAmount; |
| |
| synchronized (mLock) { |
| if (mCacheDefaultImageWallpaperColors != null) return mCacheDefaultImageWallpaperColors; |
| dimAmount = wallpaper.mWallpaperDimAmount; |
| } |
| |
| 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, dimAmount); |
| 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; |
| } |
| |
| private final Context mContext; |
| private final WindowManagerInternal mWindowManagerInternal; |
| private final PackageManagerInternal mPackageManagerInternal; |
| private final IPackageManager mIPackageManager; |
| private final ActivityManager mActivityManager; |
| private final MyPackageMonitor mMonitor; |
| private final AppOpsManager mAppOpsManager; |
| |
| // TODO("b/264637309") probably move this in WallpaperDisplayUtils, |
| // after logic is changed for the lockscreen lwp project |
| 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; |
| DisplayConnector connector = |
| targetWallpaper.connection.getDisplayConnectorOrCreate(displayId); |
| if (connector == null) return; |
| connector.disconnectLocked(targetWallpaper.connection); |
| targetWallpaper.connection.removeDisplayConnector(displayId); |
| mWallpaperDisplayHelper.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; |
| // The currently bound home or home+lock wallpaper |
| protected WallpaperData mLastWallpaper; |
| // The currently bound lock screen only wallpaper, or null if none |
| protected WallpaperData mLastLockWallpaper; |
| private IWallpaperManagerCallback mKeyguardListener; |
| private boolean mWaitingForUnlock; |
| |
| /** |
| * Flag set to true after reboot if the home wallpaper is waiting for the device to be unlocked. |
| * This happens for wallpapers that are not direct-boot aware; they can only be rendered after |
| * the user unlocks the device for the first time after a reboot. In the meantime, the default |
| * wallpaper is shown instead. |
| */ |
| private boolean mHomeWallpaperWaitingForUnlock; |
| |
| /** |
| * Flag set to true after reboot if the lock wallpaper is waiting for the device to be unlocked. |
| */ |
| private boolean mLockWallpaperWaitingForUnlock; |
| |
| private boolean mShuttingDown; |
| |
| /** |
| * 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>(); |
| |
| protected WallpaperData mFallbackWallpaper; |
| |
| private final SparseBooleanArray mUserRestorecon = new SparseBooleanArray(); |
| private int mCurrentUserId = UserHandle.USER_NULL; |
| private boolean mInAmbientMode; |
| private LocalColorRepository mLocalColorRepo = new LocalColorRepository(); |
| |
| @VisibleForTesting |
| final WallpaperDataParser mWallpaperDataParser; |
| |
| @VisibleForTesting |
| final WallpaperDisplayHelper mWallpaperDisplayHelper; |
| final WallpaperCropper mWallpaperCropper; |
| |
| 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); |
| } |
| }); |
| fallbackConnection.mDisplayConnector.clear(); |
| } |
| } else { |
| fallbackConnection.appendConnectorWithCondition(display -> |
| mWallpaperDisplayHelper.isUsableDisplay(display, fallbackConnection.mClientUid) |
| && display.getDisplayId() != DEFAULT_DISPLAY |
| && !fallbackConnection.containsDisplay(display.getDisplayId())); |
| fallbackConnection.forEachDisplayConnector(connector -> { |
| if (connector.mEngine == null) { |
| connector.connectLocked(fallbackConnection, mFallbackWallpaper); |
| } |
| }); |
| } |
| } |
| |
| /** |
| * Collect needed info for a display. |
| */ |
| @VisibleForTesting |
| 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 = |
| mWallpaperDisplayHelper.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; |
| } |
| TimingsTraceAndSlog t = new TimingsTraceAndSlog(TAG); |
| t.traceBegin("WPMS.connectLocked-" + wallpaper.wallpaperComponent); |
| if (DEBUG) Slog.v(TAG, "Adding window token: " + mToken); |
| mWindowManagerInternal.addWindowToken(mToken, TYPE_WALLPAPER, mDisplayId, |
| null /* options */); |
| mWindowManagerInternal.setWallpaperShowWhenLocked( |
| mToken, (wallpaper.mWhich & FLAG_LOCK) != 0); |
| final DisplayData wpdData = |
| mWallpaperDisplayHelper.getDisplayDataOrCreate(mDisplayId); |
| try { |
| connection.mService.attach(connection, mToken, TYPE_WALLPAPER, false, |
| wpdData.mWidth, wpdData.mHeight, |
| wpdData.mPadding, mDisplayId, wallpaper.mWhich); |
| } 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 */); |
| } |
| } |
| t.traceEnd(); |
| } |
| |
| void disconnectLocked(WallpaperConnection connection) { |
| if (DEBUG) Slog.v(TAG, "Removing window token: " + mToken); |
| mWindowManagerInternal.removeWindowToken(mToken, false/* removeWindows */, |
| mDisplayId); |
| try { |
| if (connection.mService != null) { |
| connection.mService.detach(mToken); |
| } |
| } catch (RemoteException e) { |
| Slog.w(TAG, "connection.mService.destroy() threw a RemoteException", e); |
| } |
| mEngine = null; |
| } |
| } |
| |
| class WallpaperConnection extends IWallpaperConnection.Stub |
| implements ServiceConnection { |
| |
| /** |
| * A map for each display. |
| * Use {@link #getDisplayConnectorOrCreate(int displayId)} to ensure the display is usable. |
| */ |
| private final 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); |
| } |
| } |
| }; |
| |
| private Runnable mTryToRebindRunnable = this::tryToRebind; |
| |
| 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(display -> |
| mWallpaperDisplayHelper.isUsableDisplay(display, mClientUid)); |
| } 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 = mWallpaperDisplayHelper.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)); |
| } |
| } |
| } |
| } |
| |
| 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) { |
| if (mWallpaperDisplayHelper.isUsableDisplay(displayId, mClientUid)) { |
| 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) { |
| TimingsTraceAndSlog t = new TimingsTraceAndSlog(TAG); |
| t.traceBegin("WPMS.onServiceConnected-" + name); |
| 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); |
| mContext.getMainThreadHandler().removeCallbacks(mTryToRebindRunnable); |
| mContext.getMainThreadHandler().removeCallbacks(mDisconnectRunnable); |
| } |
| } |
| t.traceEnd(); |
| } |
| |
| @Override |
| public void onLocalWallpaperColorsChanged(RectF area, WallpaperColors colors, |
| int displayId) { |
| forEachDisplayConnector(displayConnector -> { |
| Consumer<ILocalWallpaperColorConsumer> callback = cb -> { |
| try { |
| cb.onColorsChanged(area, colors); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failed to notify local color callbacks", e); |
| } |
| }; |
| synchronized (mLock) { |
| // it is safe to make an IPC call since it is one way (returns immediately) |
| mLocalColorRepo.forEachCallback(callback, area, displayId); |
| } |
| }); |
| } |
| |
| |
| @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(mDisconnectRunnable, |
| 1000); |
| } |
| } |
| } |
| } |
| |
| private 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 tryToRebind() { |
| synchronized (mLock) { |
| if (mWallpaper.wallpaperUpdating) { |
| return; |
| } |
| final ComponentName wpService = mWallpaper.wallpaperComponent; |
| // The broadcast of package update could be delayed after service disconnected. Try |
| // to re-bind the service for 10 seconds. |
| if (bindWallpaperComponentLocked( |
| wpService, true, false, mWallpaper, null)) { |
| mWallpaper.connection.scheduleTimeoutLocked(); |
| } else if (SystemClock.uptimeMillis() - mWallpaper.lastDiedTime |
| < WALLPAPER_RECONNECT_TIMEOUT_MS) { |
| // Bind fail without timeout, schedule rebind |
| Slog.w(TAG, "Rebind fail! Try again later"); |
| mContext.getMainThreadHandler().postDelayed(mTryToRebindRunnable, 1000); |
| } else { |
| // Timeout |
| 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))); |
| } |
| } |
| } |
| |
| private Runnable mDisconnectRunnable = () -> { |
| 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 (this == 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(); |
| tryToRebind(); |
| } |
| } |
| } 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; |
| } |
| |
| // Live wallpapers always are system wallpapers unless lock screen live wp is |
| // enabled. |
| which = mIsLockscreenLiveWallpaperEnabled ? mWallpaper.mWhich : FLAG_SYSTEM; |
| mWallpaper.primaryColors = primaryColors; |
| |
| // 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) { |
| throw new IllegalStateException("Connector has already been destroyed"); |
| } |
| 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); |
| } |
| |
| List<RectF> areas = mLocalColorRepo.getAreasByDisplayId(displayId); |
| if (areas != null && areas.size() != 0) { |
| try { |
| connector.mEngine.addLocalColorsAreas(areas); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failed to register local colors areas", e); |
| } |
| } |
| |
| if (mWallpaper.mWallpaperDimAmount != 0f) { |
| try { |
| connector.mEngine.applyDimming(mWallpaper.mWallpaperDimAmount); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failed to dim wallpaper", e); |
| } |
| } |
| } |
| } |
| |
| @Override |
| public void engineShown(IWallpaperEngine engine) { |
| synchronized (mLock) { |
| if (mReply != null) { |
| TimingsTraceAndSlog t = new TimingsTraceAndSlog(TAG); |
| t.traceBegin("WPMS.mReply.sendResult"); |
| final long ident = Binder.clearCallingIdentity(); |
| try { |
| mReply.sendResult(null); |
| } catch (RemoteException e) { |
| Slog.d(TAG, "Failed to send callback!", e); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| t.traceEnd(); |
| mReply = null; |
| } |
| } |
| } |
| |
| @Override |
| public ParcelFileDescriptor setWallpaper(String name) { |
| synchronized (mLock) { |
| if (mWallpaper.connection == this) { |
| return updateWallpaperBitmapLocked(name, mWallpaper, null); |
| } |
| return null; |
| } |
| } |
| } |
| |
| /** |
| * Tracks wallpaper information during a wallpaper change and does bookkeeping afterwards to |
| * update Engine destination, wallpaper maps, and last wallpaper. |
| */ |
| class WallpaperDestinationChangeHandler { |
| final WallpaperData mNewWallpaper; |
| final WallpaperData mOriginalSystem; |
| |
| WallpaperDestinationChangeHandler(WallpaperData newWallpaper) { |
| this.mNewWallpaper = newWallpaper; |
| WallpaperData sysWp = mWallpaperMap.get(newWallpaper.userId); |
| mOriginalSystem = new WallpaperData(sysWp); |
| } |
| |
| void complete() { |
| // Only changes from home+lock to just home or lock need attention |
| if (mNewWallpaper.mSystemWasBoth) { |
| if (DEBUG) { |
| Slog.v(TAG, "Handling change from system+lock wallpaper"); |
| } |
| if (mNewWallpaper.mWhich == FLAG_SYSTEM) { |
| // New wp is system only, so old system+lock is now lock only |
| final boolean originalIsStatic = mImageWallpaper.equals( |
| mOriginalSystem.wallpaperComponent); |
| if (originalIsStatic) { |
| // Static wp: image file rename has already been tried via |
| // migrateStaticSystemToLockWallpaperLocked() and added to the lock wp map |
| // if successful. |
| WallpaperData lockWp = mLockWallpaperMap.get(mNewWallpaper.userId); |
| if (lockWp != null) { |
| // Successful rename, set old system+lock to the pending lock wp |
| if (DEBUG) { |
| Slog.v(TAG, "static system+lock to system success"); |
| } |
| lockWp.wallpaperComponent = |
| mOriginalSystem.wallpaperComponent; |
| lockWp.connection = mOriginalSystem.connection; |
| lockWp.connection.mWallpaper = lockWp; |
| mOriginalSystem.mWhich = FLAG_LOCK; |
| updateEngineFlags(mOriginalSystem); |
| notifyWallpaperColorsChanged(lockWp, FLAG_LOCK); |
| } else { |
| // Failed rename, use current system wp for both |
| if (DEBUG) { |
| Slog.v(TAG, "static system+lock to system failure"); |
| } |
| WallpaperData currentSystem = mWallpaperMap.get(mNewWallpaper.userId); |
| currentSystem.mWhich = FLAG_SYSTEM | FLAG_LOCK; |
| updateEngineFlags(currentSystem); |
| mLockWallpaperMap.remove(mNewWallpaper.userId); |
| } |
| } else { |
| // Live wp: just update old system+lock to lock only |
| if (DEBUG) { |
| Slog.v(TAG, "live system+lock to system success"); |
| } |
| mOriginalSystem.mWhich = FLAG_LOCK; |
| updateEngineFlags(mOriginalSystem); |
| mLockWallpaperMap.put(mNewWallpaper.userId, mOriginalSystem); |
| mLastLockWallpaper = mOriginalSystem; |
| notifyWallpaperColorsChanged(mOriginalSystem, FLAG_LOCK); |
| } |
| } else if (mNewWallpaper.mWhich == FLAG_LOCK) { |
| // New wp is lock only, so old system+lock is now system only |
| if (DEBUG) { |
| Slog.v(TAG, "system+lock to lock"); |
| } |
| WallpaperData currentSystem = mWallpaperMap.get(mNewWallpaper.userId); |
| if (currentSystem.wallpaperId == mOriginalSystem.wallpaperId) { |
| currentSystem.mWhich = FLAG_SYSTEM; |
| updateEngineFlags(currentSystem); |
| } |
| } |
| } |
| |
| if (DEBUG) { |
| Slog.v(TAG, "--- wallpaper changed --"); |
| Slog.v(TAG, "new sysWp: " + mWallpaperMap.get(mCurrentUserId)); |
| Slog.v(TAG, "new lockWp: " + mLockWallpaperMap.get(mCurrentUserId)); |
| Slog.v(TAG, "new lastWp: " + mLastWallpaper); |
| Slog.v(TAG, "new lastLockWp: " + mLastLockWallpaper); |
| } |
| } |
| } |
| |
| 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; |
| } |
| } |
| |
| @VisibleForTesting |
| WallpaperData getCurrentWallpaperData(@SetWallpaperFlags int which, int userId) { |
| synchronized (mLock) { |
| final SparseArray<WallpaperData> wallpaperDataMap = |
| which == FLAG_SYSTEM ? mWallpaperMap : mLockWallpaperMap; |
| return wallpaperDataMap.get(userId); |
| } |
| } |
| |
| 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.getCmfDefaultWallpaperComponent(context); |
| mWindowManagerInternal = LocalServices.getService(WindowManagerInternal.class); |
| mPackageManagerInternal = LocalServices.getService(PackageManagerInternal.class); |
| mIPackageManager = AppGlobals.getPackageManager(); |
| mAppOpsManager = (AppOpsManager) mContext.getSystemService(Context.APP_OPS_SERVICE); |
| DisplayManager dm = mContext.getSystemService(DisplayManager.class); |
| dm.registerDisplayListener(mDisplayListener, null /* handler */); |
| mWallpaperDisplayHelper = new WallpaperDisplayHelper(dm, mWindowManagerInternal); |
| mWallpaperCropper = new WallpaperCropper(mWallpaperDisplayHelper); |
| mActivityManager = mContext.getSystemService(ActivityManager.class); |
| mMonitor = new MyPackageMonitor(); |
| mColorsChangedListeners = new SparseArray<>(); |
| mWallpaperDataParser = new WallpaperDataParser(mContext, mWallpaperDisplayHelper, |
| mWallpaperCropper); |
| |
| mIsLockscreenLiveWallpaperEnabled = |
| SystemProperties.getBoolean("persist.wm.debug.lockscreen_live_wallpaper", false); |
| mIsMultiCropEnabled = |
| SystemProperties.getBoolean("persist.wm.debug.wallpaper_multi_crop", false); |
| LocalServices.addService(WallpaperManagerInternal.class, new LocalService()); |
| } |
| |
| private final class LocalService extends WallpaperManagerInternal { |
| @Override |
| public void onDisplayReady(int displayId) { |
| onDisplayReadyInternal(displayId); |
| } |
| |
| @Override |
| public void onScreenTurnedOn(int displayId) { |
| notifyScreenTurnedOn(displayId); |
| } |
| @Override |
| public void onScreenTurningOn(int displayId) { |
| notifyScreenTurningOn(displayId); |
| } |
| |
| @Override |
| public void onKeyguardGoingAway() { |
| notifyKeyguardGoingAway(); |
| } |
| } |
| |
| 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, FLAG_SYSTEM | FLAG_LOCK); |
| getWallpaperSafeLocked(UserHandle.USER_SYSTEM, FLAG_SYSTEM); |
| } |
| |
| @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"); |
| } |
| mWallpaperCropper.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) { |
| errorCheck(newUserId); |
| 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 someone set too large jpg file as wallpaper, system_server may be killed by lmk in |
| // generateCrop(), so we create a file in generateCrop() before ImageDecoder starts working |
| // and delete this file after ImageDecoder finishing. If the specific file exists, that |
| // means ImageDecoder can't handle the original wallpaper file, in order to avoid |
| // system_server restart again and again and rescue party will trigger factory reset, |
| // so we reset default wallpaper in case system_server is trapped into a restart loop. |
| errorCheck(UserHandle.USER_SYSTEM); |
| |
| if (phase == SystemService.PHASE_ACTIVITY_MANAGER_READY) { |
| systemReady(); |
| } else if (phase == SystemService.PHASE_THIRD_PARTY_APPS_CAN_START) { |
| switchUser(UserHandle.USER_SYSTEM, null); |
| } |
| } |
| |
| private static final Map<Integer, String> sWallpaperType = Map.of( |
| FLAG_SYSTEM, RECORD_FILE, |
| FLAG_LOCK, RECORD_LOCK_FILE); |
| |
| private void errorCheck(int userID) { |
| sWallpaperType.forEach((type, filename) -> { |
| final File record = new File(getWallpaperDir(userID), filename); |
| if (record.exists()) { |
| Slog.w(TAG, "User:" + userID + ", wallpaper tyep = " + type |
| + ", wallpaper fail detect!! reset to default wallpaper"); |
| clearWallpaperData(userID, type); |
| record.delete(); |
| } |
| }); |
| } |
| |
| private void clearWallpaperData(int userID, int wallpaperType) { |
| final WallpaperData wallpaper = new WallpaperData(userID, wallpaperType); |
| if (wallpaper.sourceExists()) { |
| wallpaper.wallpaperFile.delete(); |
| } |
| if (wallpaper.cropExists()) { |
| wallpaper.cropFile.delete(); |
| } |
| |
| } |
| |
| @Override |
| public void onUnlockUser(final int userId) { |
| synchronized (mLock) { |
| if (mCurrentUserId == userId) { |
| if (mIsLockscreenLiveWallpaperEnabled) { |
| if (mHomeWallpaperWaitingForUnlock) { |
| final WallpaperData systemWallpaper = |
| getWallpaperSafeLocked(userId, FLAG_SYSTEM); |
| switchWallpaper(systemWallpaper, null); |
| // TODO(b/278261563): call notifyCallbacksLocked inside switchWallpaper |
| notifyCallbacksLocked(systemWallpaper); |
| } |
| if (mLockWallpaperWaitingForUnlock) { |
| final WallpaperData lockWallpaper = |
| getWallpaperSafeLocked(userId, FLAG_LOCK); |
| switchWallpaper(lockWallpaper, null); |
| notifyCallbacksLocked(lockWallpaper); |
| } |
| } |
| |
| if (mWaitingForUnlock && !mIsLockscreenLiveWallpaperEnabled) { |
| // the desired wallpaper is not direct-boot aware, load it now |
| final WallpaperData systemWallpaper = |
| getWallpaperSafeLocked(userId, FLAG_SYSTEM); |
| switchWallpaper(systemWallpaper, null); |
| notifyCallbacksLocked(systemWallpaper); |
| } |
| |
| // 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 = () -> { |
| final TimingsTraceAndSlog t = new TimingsTraceAndSlog(TAG); |
| t.traceBegin("Wallpaper_selinux_restorecon-" + userId); |
| try { |
| for (File file: WallpaperUtils.getWallpaperFiles(userId)) { |
| if (file.exists()) { |
| SELinux.restorecon(file); |
| } |
| } |
| } finally { |
| t.traceEnd(); |
| } |
| }; |
| BackgroundThread.getHandler().post(relabeler); |
| } |
| } |
| } |
| } |
| |
| void onRemoveUser(int userId) { |
| if (userId < 1) return; |
| |
| synchronized (mLock) { |
| stopObserversLocked(userId); |
| WallpaperUtils.getWallpaperFiles(userId).forEach(File::delete); |
| mUserRestorecon.delete(userId); |
| } |
| } |
| |
| void switchUser(int userId, IRemoteCallback reply) { |
| TimingsTraceAndSlog t = new TimingsTraceAndSlog(TAG); |
| t.traceBegin("Wallpaper_switch-user-" + userId); |
| try { |
| final WallpaperData systemWallpaper; |
| final WallpaperData lockWallpaper; |
| synchronized (mLock) { |
| if (mCurrentUserId == userId) { |
| return; |
| } |
| mCurrentUserId = userId; |
| systemWallpaper = getWallpaperSafeLocked(userId, FLAG_SYSTEM); |
| |
| if (mIsLockscreenLiveWallpaperEnabled) { |
| lockWallpaper = systemWallpaper.mWhich == (FLAG_LOCK | FLAG_SYSTEM) |
| ? systemWallpaper : getWallpaperSafeLocked(userId, FLAG_LOCK); |
| } else { |
| 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(); |
| } |
| if (mIsLockscreenLiveWallpaperEnabled && lockWallpaper != systemWallpaper) { |
| switchWallpaper(lockWallpaper, null); |
| } |
| 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); |
| }); |
| } finally { |
| t.traceEnd(); |
| } |
| } |
| |
| void switchWallpaper(WallpaperData wallpaper, IRemoteCallback reply) { |
| synchronized (mLock) { |
| mWaitingForUnlock = false; |
| if (mIsLockscreenLiveWallpaperEnabled) { |
| if ((wallpaper.mWhich & FLAG_SYSTEM) != 0) mHomeWallpaperWaitingForUnlock = false; |
| if ((wallpaper.mWhich & FLAG_LOCK) != 0) mLockWallpaperWaitingForUnlock = 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 e) { |
| Slog.w(TAG, "Failure starting previous wallpaper; clearing", e); |
| } |
| |
| if (mIsLockscreenLiveWallpaperEnabled) { |
| onSwitchWallpaperFailLocked(wallpaper, reply, si); |
| return; |
| } |
| |
| if (si == null) { |
| 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, FLAG_LOCK); |
| bindWallpaperComponentLocked(mImageWallpaper, true, false, fallback, reply); |
| mWaitingForUnlock = true; |
| } |
| } |
| } |
| } |
| |
| /** |
| * Fallback method if a wallpaper fails to load on boot or after a user switch. |
| * Only called if mIsLockscreenLiveWallpaperEnabled is true. |
| */ |
| private void onSwitchWallpaperFailLocked( |
| WallpaperData wallpaper, IRemoteCallback reply, ServiceInfo serviceInfo) { |
| |
| if (serviceInfo == null) { |
| if (wallpaper.mWhich == (FLAG_LOCK | FLAG_SYSTEM)) { |
| clearWallpaperLocked(false, FLAG_SYSTEM, wallpaper.userId, null); |
| clearWallpaperLocked(false, FLAG_LOCK, wallpaper.userId, reply); |
| } else { |
| clearWallpaperLocked(false, wallpaper.mWhich, wallpaper.userId, reply); |
| } |
| return; |
| } |
| 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.mWhich); |
| |
| // files from the previous static wallpaper may still be stored in memory. |
| // delete them in order to show the default wallpaper. |
| if (wallpaper.wallpaperFile.exists()) { |
| wallpaper.wallpaperFile.delete(); |
| wallpaper.cropFile.delete(); |
| } |
| |
| bindWallpaperComponentLocked(mImageWallpaper, true, false, fallback, reply); |
| if ((wallpaper.mWhich & FLAG_SYSTEM) != 0) mHomeWallpaperWaitingForUnlock = true; |
| if ((wallpaper.mWhich & FLAG_LOCK) != 0) mLockWallpaperWaitingForUnlock = 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, FLAG_SYSTEM); |
| 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) { |
| Slog.w(TAG, "Failed to notify keyguard after wallpaper clear", e); |
| } |
| } |
| 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) { |
| Slog.w(TAG, "Failed to notify callback after wallpaper clear", e1); |
| } |
| } |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| private boolean hasCrossUserPermission() { |
| final int interactPermission = |
| mContext.checkCallingPermission(INTERACT_ACROSS_USERS_FULL); |
| return interactPermission == PERMISSION_GRANTED; |
| } |
| |
| @Override |
| public boolean hasNamedWallpaper(String name) { |
| final int callingUser = UserHandle.getCallingUserId(); |
| final boolean allowCrossUser = hasCrossUserPermission(); |
| if (DEBUG) { |
| Slog.d(TAG, "hasNamedWallpaper() caller " + Binder.getCallingUid() |
| + " cross-user?: " + allowCrossUser); |
| } |
| |
| synchronized (mLock) { |
| List<UserInfo> users; |
| final long ident = Binder.clearCallingIdentity(); |
| try { |
| users = ((UserManager) mContext.getSystemService(Context.USER_SERVICE)).getUsers(); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| for (UserInfo user: users) { |
| if (!allowCrossUser && callingUser != user.id) { |
| // No cross-user information for callers without permission |
| continue; |
| } |
| |
| // ignore managed profiles |
| if (user.isManagedProfile()) { |
| continue; |
| } |
| WallpaperData wd = mWallpaperMap.get(user.id); |
| if (wd == null) { |
| // User hasn't started yet, so load their settings to peek at the wallpaper |
| loadSettingsLocked(user.id, false, FLAG_SYSTEM | FLAG_LOCK); |
| wd = mWallpaperMap.get(user.id); |
| } |
| if (wd != null && name.equals(wd.name)) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * 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; |
| } |
| |
| // Make sure both width and height are not larger than max texture size. |
| width = Math.min(width, GLHelper.getMaxTextureSize()); |
| height = Math.min(height, GLHelper.getMaxTextureSize()); |
| |
| 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 (!mWallpaperDisplayHelper.isValidDisplay(displayId)) { |
| throw new IllegalArgumentException("Cannot find display with id=" + displayId); |
| } |
| |
| final DisplayData wpdData = mWallpaperDisplayHelper.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 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) { |
| Slog.w(TAG, "Failed to set desired size", 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 (!mWallpaperDisplayHelper.isValidDisplay(displayId)) { |
| throw new IllegalArgumentException("Cannot find display with id=" + displayId); |
| } |
| WallpaperData wallpaper = mWallpaperMap.get(UserHandle.getCallingUserId()); |
| if (wallpaper != null) { |
| final DisplayData wpdData = |
| mWallpaperDisplayHelper.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 (!mWallpaperDisplayHelper.isValidDisplay(displayId)) { |
| throw new IllegalArgumentException("Cannot find display with id=" + displayId); |
| } |
| WallpaperData wallpaper = mWallpaperMap.get(UserHandle.getCallingUserId()); |
| if (wallpaper != null) { |
| final DisplayData wpdData = |
| mWallpaperDisplayHelper.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 (!mWallpaperDisplayHelper.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); |
| } |
| |
| int maxSize = mWallpaperDisplayHelper.getMaximumSizeDimension(displayId); |
| |
| final int paddingWidth = padding.left + padding.right; |
| final int paddingHeight = padding.top + padding.bottom; |
| if (paddingWidth > maxSize) { |
| throw new IllegalArgumentException("padding width " + paddingWidth |
| + " exceeds max width " + maxSize); |
| } |
| if (paddingHeight > maxSize) { |
| throw new IllegalArgumentException("padding height " + paddingHeight |
| + " exceeds max height " + maxSize); |
| } |
| |
| final DisplayData wpdData = mWallpaperDisplayHelper.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 DisplayConnector connector = wallpaper.connection |
| .getDisplayConnectorOrCreate(displayId); |
| final IWallpaperEngine engine = connector != null ? connector.mEngine : null; |
| if (engine != null) { |
| try { |
| engine.setDisplayPadding(padding); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failed to set display padding", 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; |
| } |
| } |
| } |
| } |
| } |
| |
| @Deprecated |
| @Override |
| public ParcelFileDescriptor getWallpaper(String callingPkg, IWallpaperManagerCallback cb, |
| final int which, Bundle outParams, int wallpaperUserId) { |
| return getWallpaperWithFeature(callingPkg, null, cb, which, outParams, |
| wallpaperUserId, /* getCropped= */ true); |
| } |
| |
| @Override |
| public ParcelFileDescriptor getWallpaperWithFeature(String callingPkg, String callingFeatureId, |
| IWallpaperManagerCallback cb, final int which, Bundle outParams, int wallpaperUserId, |
| boolean getCropped) { |
| final boolean hasPrivilege = hasPermission(READ_WALLPAPER_INTERNAL); |
| if (!hasPrivilege) { |
| mContext.getSystemService(StorageManager.class).checkPermissionReadImages(true, |
| Binder.getCallingPid(), Binder.getCallingUid(), callingPkg, callingFeatureId); |
| } |
| |
| 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 = |
| mWallpaperDisplayHelper.getDisplayDataOrCreate(DEFAULT_DISPLAY); |
| try { |
| if (outParams != null) { |
| outParams.putInt("width", wpdData.mWidth); |
| outParams.putInt("height", wpdData.mHeight); |
| } |
| if (cb != null) { |
| wallpaper.callbacks.register(cb); |
| } |
| |
| File fileToReturn = getCropped ? wallpaper.cropFile : wallpaper.wallpaperFile; |
| |
| if (!fileToReturn.exists()) { |
| return null; |
| } |
| |
| return ParcelFileDescriptor.open(fileToReturn, 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; |
| } |
| } |
| |
| private boolean hasPermission(String permission) { |
| return mContext.checkCallingOrSelfPermission(permission) == PERMISSION_GRANTED; |
| } |
| |
| @Override |
| public WallpaperInfo getWallpaperInfo(int userId) { |
| return getWallpaperInfoWithFlags(FLAG_SYSTEM, userId); |
| } |
| |
| @Override |
| public WallpaperInfo getWallpaperInfoWithFlags(@SetWallpaperFlags int which, int userId) { |
| |
| userId = ActivityManager.handleIncomingUser(Binder.getCallingPid(), |
| Binder.getCallingUid(), userId, false, true, "getWallpaperInfo", null); |
| synchronized (mLock) { |
| WallpaperData wallpaper = (which == FLAG_LOCK) ? mLockWallpaperMap.get(userId) |
| : mWallpaperMap.get(userId); |
| if (wallpaper == null |
| || wallpaper.connection == null |
| || wallpaper.connection.mInfo == null) return null; |
| |
| WallpaperInfo info = wallpaper.connection.mInfo; |
| if (hasPermission(READ_WALLPAPER_INTERNAL) |
| || mPackageManagerInternal.canQueryPackage( |
| Binder.getCallingUid(), info.getComponent().getPackageName())) { |
| return info; |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public ParcelFileDescriptor getWallpaperInfoFile(int userId) { |
| synchronized (mLock) { |
| try { |
| File file = new File(getWallpaperDir(userId), WALLPAPER_INFO); |
| |
| if (!file.exists()) { |
| return null; |
| } |
| |
| return ParcelFileDescriptor.open(file, MODE_READ_ONLY); |
| } catch (FileNotFoundException e) { |
| /* Shouldn't happen as we check to see if the file exists */ |
| Slog.w(TAG, "Error getting wallpaper info file", e); |
| } |
| 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(s). |
| * |
| * @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) { |
| if (mIsLockscreenLiveWallpaperEnabled) { |
| List<IWallpaperEngine> engines = new ArrayList<>(); |
| synchronized (mLock) { |
| mInAmbientMode = inAmbientMode; |
| for (WallpaperData data : getActiveWallpapers()) { |
| if (data.connection.mInfo == null |
| || data.connection.mInfo.supportsAmbientMode()) { |
| // TODO(multi-display) Extends this method with specific display. |
| IWallpaperEngine engine = data.connection |
| .getDisplayConnectorOrCreate(DEFAULT_DISPLAY).mEngine; |
| if (engine != null) engines.add(engine); |
| } |
| } |
| } |
| for (IWallpaperEngine engine : engines) { |
| try { |
| engine.setInAmbientMode(inAmbientMode, animationDuration); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failed to set ambient mode", e); |
| } |
| } |
| return; |
| } |
| |
| 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) { |
| Slog.w(TAG, "Failed to set ambient mode", e); |
| } |
| } |
| } |
| |
| /** |
| * Propagate a wake event to the wallpaper engine(s). |
| */ |
| public void notifyWakingUp(int x, int y, @NonNull Bundle extras) { |
| synchronized (mLock) { |
| if (mIsLockscreenLiveWallpaperEnabled) { |
| for (WallpaperData data : getActiveWallpapers()) { |
| data.connection.forEachDisplayConnector(displayConnector -> { |
| if (displayConnector.mEngine != null) { |
| try { |
| displayConnector.mEngine.dispatchWallpaperCommand( |
| WallpaperManager.COMMAND_WAKING_UP, x, y, -1, extras); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failed to dispatch COMMAND_WAKING_UP", e); |
| } |
| } |
| }); |
| } |
| return; |
| } |
| final WallpaperData data = mWallpaperMap.get(mCurrentUserId); |
| if (data != null && data.connection != null) { |
| data.connection.forEachDisplayConnector( |
| displayConnector -> { |
| if (displayConnector.mEngine != null) { |
| try { |
| displayConnector.mEngine.dispatchWallpaperCommand( |
| WallpaperManager.COMMAND_WAKING_UP, x, y, -1, extras); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failed to dispatch COMMAND_WAKING_UP", e); |
| } |
| } |
| }); |
| } |
| } |
| } |
| |
| /** |
| * Propagate a sleep event to the wallpaper engine(s). |
| */ |
| public void notifyGoingToSleep(int x, int y, @NonNull Bundle extras) { |
| synchronized (mLock) { |
| if (mIsLockscreenLiveWallpaperEnabled) { |
| for (WallpaperData data : getActiveWallpapers()) { |
| data.connection.forEachDisplayConnector(displayConnector -> { |
| if (displayConnector.mEngine != null) { |
| try { |
| displayConnector.mEngine.dispatchWallpaperCommand( |
| WallpaperManager.COMMAND_GOING_TO_SLEEP, x, y, -1, |
| extras); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failed to dispatch COMMAND_GOING_TO_SLEEP", e); |
| } |
| } |
| }); |
| } |
| return; |
| } |
| final WallpaperData data = mWallpaperMap.get(mCurrentUserId); |
| if (data != null && data.connection != null) { |
| data.connection.forEachDisplayConnector( |
| displayConnector -> { |
| if (displayConnector.mEngine != null) { |
| try { |
| displayConnector.mEngine.dispatchWallpaperCommand( |
| WallpaperManager.COMMAND_GOING_TO_SLEEP, x, y, -1, |
| extras); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failed to dispatch COMMAND_GOING_TO_SLEEP", e); |
| } |
| } |
| }); |
| } |
| } |
| } |
| |
| /** |
| * Propagates screen turned on event to wallpaper engine(s). |
| */ |
| private void notifyScreenTurnedOn(int displayId) { |
| synchronized (mLock) { |
| if (mIsLockscreenLiveWallpaperEnabled) { |
| for (WallpaperData data : getActiveWallpapers()) { |
| if (data.connection.containsDisplay(displayId)) { |
| final IWallpaperEngine engine = data.connection |
| .getDisplayConnectorOrCreate(displayId).mEngine; |
| if (engine != null) { |
| try { |
| engine.onScreenTurnedOn(); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failed to notify that the screen turned on", e); |
| } |
| } |
| } |
| } |
| return; |
| } |
| final WallpaperData data = mWallpaperMap.get(mCurrentUserId); |
| if (data != null |
| && data.connection != null |
| && data.connection.containsDisplay(displayId)) { |
| final IWallpaperEngine engine = data.connection |
| .getDisplayConnectorOrCreate(displayId).mEngine; |
| if (engine != null) { |
| try { |
| engine.onScreenTurnedOn(); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failed to notify that the screen turned on", e); |
| } |
| } |
| } |
| } |
| } |
| |
| /** |
| * Propagate screen turning on event to wallpaper engine(s). |
| */ |
| private void notifyScreenTurningOn(int displayId) { |
| synchronized (mLock) { |
| if (mIsLockscreenLiveWallpaperEnabled) { |
| for (WallpaperData data : getActiveWallpapers()) { |
| if (data.connection.containsDisplay(displayId)) { |
| final IWallpaperEngine engine = data.connection |
| .getDisplayConnectorOrCreate(displayId).mEngine; |
| if (engine != null) { |
| try { |
| engine.onScreenTurningOn(); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failed to notify that the screen is turning on", e); |
| } |
| } |
| } |
| } |
| return; |
| } |
| final WallpaperData data = mWallpaperMap.get(mCurrentUserId); |
| if (data != null |
| && data.connection != null |
| && data.connection.containsDisplay(displayId)) { |
| final IWallpaperEngine engine = data.connection |
| .getDisplayConnectorOrCreate(displayId).mEngine; |
| if (engine != null) { |
| try { |
| engine.onScreenTurningOn(); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failed to notify that the screen is turning on", e); |
| } |
| } |
| } |
| } |
| } |
| |
| /** |
| * Propagate a keyguard going away event to the wallpaper engine. |
| */ |
| private void notifyKeyguardGoingAway() { |
| synchronized (mLock) { |
| if (mIsLockscreenLiveWallpaperEnabled) { |
| for (WallpaperData data : getActiveWallpapers()) { |
| data.connection.forEachDisplayConnector(displayConnector -> { |
| if (displayConnector.mEngine != null) { |
| try { |
| displayConnector.mEngine.dispatchWallpaperCommand( |
| WallpaperManager.COMMAND_KEYGUARD_GOING_AWAY, |
| -1, -1, -1, new Bundle()); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failed to notify that the keyguard is going away", e); |
| } |
| } |
| }); |
| } |
| return; |
| } |
| |
| final WallpaperData data = mWallpaperMap.get(mCurrentUserId); |
| if (data != null && data.connection != null) { |
| data.connection.forEachDisplayConnector(displayConnector -> { |
| if (displayConnector.mEngine != null) { |
| try { |
| displayConnector.mEngine.dispatchWallpaperCommand( |
| WallpaperManager.COMMAND_KEYGUARD_GOING_AWAY, |
| -1, -1, -1, new Bundle()); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failed to notify that the keyguard is going away", e); |
| } |
| } |
| }); |
| } |
| } |
| } |
| |
| @Override |
| public boolean setLockWallpaperCallback(IWallpaperManagerCallback cb) { |
| checkPermission(android.Manifest.permission.INTERNAL_SYSTEM_WINDOW); |
| synchronized (mLock) { |
| mKeyguardListener = cb; |
| } |
| return true; |
| } |
| |
| private WallpaperData[] getActiveWallpapers() { |
| WallpaperData systemWallpaper = mWallpaperMap.get(mCurrentUserId); |
| WallpaperData lockWallpaper = mLockWallpaperMap.get(mCurrentUserId); |
| boolean systemValid = systemWallpaper != null && systemWallpaper.connection != null; |
| boolean lockValid = lockWallpaper != null && lockWallpaper.connection != null; |
| return systemValid && lockValid ? new WallpaperData[]{systemWallpaper, lockWallpaper} |
| : systemValid ? new WallpaperData[]{systemWallpaper} |
| : lockValid ? new WallpaperData[]{lockWallpaper} |
| : new WallpaperData[0]; |
| } |
| |
| private IWallpaperEngine getEngine(int which, int userId, int displayId) { |
| WallpaperData wallpaperData = findWallpaperAtDisplay(userId, displayId); |
| if (wallpaperData == null) return null; |
| WallpaperConnection connection = wallpaperData.connection; |
| if (connection == null) return null; |
| IWallpaperEngine engine = null; |
| synchronized (mLock) { |
| for (int i = 0; i < connection.mDisplayConnector.size(); i++) { |
| int id = connection.mDisplayConnector.get(i).mDisplayId; |
| int currentWhich = connection.mDisplayConnector.get(i).mDisplayId; |
| if (id != displayId && currentWhich != which) continue; |
| engine = connection.mDisplayConnector.get(i).mEngine; |
| break; |
| } |
| } |
| return engine; |
| } |
| |
| @Override |
| public void addOnLocalColorsChangedListener(@NonNull ILocalWallpaperColorConsumer callback, |
| @NonNull List<RectF> regions, 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"); |
| } |
| IWallpaperEngine engine = getEngine(which, userId, displayId); |
| if (engine == null) return; |
| synchronized (mLock) { |
| mLocalColorRepo.addAreas(callback, regions, displayId); |
| } |
| engine.addLocalColorsAreas(regions); |
| } |
| |
| @Override |
| public void removeOnLocalColorsChangedListener( |
| @NonNull ILocalWallpaperColorConsumer callback, List<RectF> removeAreas, 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"); |
| } |
| final UserHandle callingUser = Binder.getCallingUserHandle(); |
| if (callingUser.getIdentifier() != userId) { |
| throw new SecurityException("calling user id does not match"); |
| } |
| final long identity = Binder.clearCallingIdentity(); |
| List<RectF> purgeAreas = null; |
| try { |
| synchronized (mLock) { |
| purgeAreas = mLocalColorRepo.removeAreas(callback, removeAreas, displayId); |
| } |
| } catch (Exception e) { |
| // ignore any exception |
| } finally { |
| Binder.restoreCallingIdentity(identity); |
| } |
| IWallpaperEngine engine = getEngine(which, userId, displayId); |
| if (engine == null || purgeAreas == null) return; |
| if (purgeAreas.size() > 0) engine.removeLocalColorsAreas(purgeAreas); |
| } |
| |
| /** |
| * Returns true if the lock screen wallpaper exists (different wallpaper from the system) |
| */ |
| @Override |
| public boolean lockScreenWallpaperExists() { |
| synchronized (mLock) { |
| return mLockWallpaperMap.get(mCurrentUserId) != null; |
| } |
| } |
| |
| /** |
| * Returns true if there is a static wallpaper on the specified screen. With which=FLAG_LOCK, |
| * always return false if the lockscreen doesn't run its own wallpaper engine. |
| */ |
| @Override |
| public boolean isStaticWallpaper(int which) { |
| synchronized (mLock) { |
| WallpaperData wallpaperData = (which == FLAG_LOCK ? mLockWallpaperMap : mWallpaperMap) |
| .get(mCurrentUserId); |
| if (wallpaperData == null) return false; |
| return mImageWallpaper.equals(wallpaperData.wallpaperComponent); |
| } |
| } |
| |
| /** |
| * Sets wallpaper dim amount for the calling UID. This applies to all destinations (home, lock) |
| * with an active wallpaper engine. |
| * |
| * @param dimAmount Dim amount which would be blended with the system default dimming. |
| */ |
| @Override |
| public void setWallpaperDimAmount(float dimAmount) throws RemoteException { |
| setWallpaperDimAmountForUid(Binder.getCallingUid(), dimAmount); |
| } |
| |
| /** |
| * Sets wallpaper dim amount for the calling UID. This applies to all destinations (home, lock) |
| * with an active wallpaper engine. |
| * |
| * @param uid Caller UID that wants to set the wallpaper dim amount |
| * @param dimAmount Dim amount where 0f reverts any dimming applied by the caller (fully bright) |
| * and 1f is fully black |
| * @throws RemoteException |
| */ |
| public void setWallpaperDimAmountForUid(int uid, float dimAmount) { |
| checkPermission(android.Manifest.permission.SET_WALLPAPER_DIM_AMOUNT); |
| final long ident = Binder.clearCallingIdentity(); |
| try { |
| synchronized (mLock) { |
| WallpaperData wallpaper = mWallpaperMap.get(mCurrentUserId); |
| WallpaperData lockWallpaper = mLockWallpaperMap.get(mCurrentUserId); |
| |
| if (dimAmount == 0.0f) { |
| wallpaper.mUidToDimAmount.remove(uid); |
| } else { |
| wallpaper.mUidToDimAmount.put(uid, dimAmount); |
| } |
| |
| float maxDimAmount = getHighestDimAmountFromMap(wallpaper.mUidToDimAmount); |
| wallpaper.mWallpaperDimAmount = maxDimAmount; |
| // Also set the dim amount to the lock screen wallpaper if the lock and home screen |
| // do not share the same wallpaper |
| if (lockWallpaper != null) { |
| lockWallpaper.mWallpaperDimAmount = maxDimAmount; |
| } |
| |
| if (mIsLockscreenLiveWallpaperEnabled) { |
| boolean changed = false; |
| for (WallpaperData wp : getActiveWallpapers()) { |
| if (wp != null && wp.connection != null) { |
| wp.connection.forEachDisplayConnector(connector -> { |
| if (connector.mEngine != null) { |
| try { |
| connector.mEngine.applyDimming(maxDimAmount); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Can't apply dimming on wallpaper display " |
| + "connector", e); |
| } |
| } |
| }); |
| // Need to extract colors again to re-calculate dark hints after |
| // applying dimming. |
| wp.mIsColorExtractedFromDim = true; |
| notifyWallpaperColorsChanged(wp, wp.mWhich); |
| changed = true; |
| } |
| } |
| if (changed) { |
| saveSettingsLocked(wallpaper.userId); |
| } |
| } else { |
| if (wallpaper.connection != null) { |
| wallpaper.connection.forEachDisplayConnector(connector -> { |
| if (connector.mEngine != null) { |
| try { |
| connector.mEngine.applyDimming(maxDimAmount); |
| } catch (RemoteException e) { |
| Slog.w(TAG, |
| "Can't apply dimming on wallpaper display connector", |
| e); |
| } |
| } |
| }); |
| // Need to extract colors again to re-calculate dark hints after |
| // applying dimming. |
| wallpaper.mIsColorExtractedFromDim = true; |
| notifyWallpaperColorsChanged(wallpaper, FLAG_SYSTEM); |
| if (lockWallpaper != null) { |
| lockWallpaper.mIsColorExtractedFromDim = true; |
| notifyWallpaperColorsChanged(lockWallpaper, FLAG_LOCK); |
| } |
| saveSettingsLocked(wallpaper.userId); |
| } |
| } |
| } |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| @Override |
| public float getWallpaperDimAmount() { |
| checkPermission(android.Manifest.permission.SET_WALLPAPER_DIM_AMOUNT); |
| synchronized (mLock) { |
| WallpaperData data = mWallpaperMap.get(mCurrentUserId); |
| if (data == null) { |
| data = mWallpaperMap.get(UserHandle.USER_SYSTEM); |
| if (data == null) { |
| Slog.e(TAG, "getWallpaperDimAmount: wallpaperData is null"); |
| return 0.0f; |
| } |
| } |
| return data.mWallpaperDimAmount; |
| } |
| } |
| |
| /** |
| * Gets the highest dim amount among all the calling UIDs that set the wallpaper dim amount. |
| * Return 0f as default value to indicate no application has dimmed the wallpaper. |
| * |
| * @param uidToDimAmountMap Map of UIDs to dim amounts |
| */ |
| private float getHighestDimAmountFromMap(SparseArray<Float> uidToDimAmountMap) { |
| float maxDimAmount = 0.0f; |
| for (int i = 0; i < uidToDimAmountMap.size(); i++) { |
| maxDimAmount = Math.max(maxDimAmount, uidToDimAmountMap.valueAt(i)); |
| } |
| return maxDimAmount; |
| } |
| |
| @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 |
| || wallpaperData.mIsColorExtractedFromDim; |
| } |
| |
| if (shouldExtract) { |
| extractColors(wallpaperData); |
| } |
| |
| return getAdjustedWallpaperColorsOnDimming(wallpaperData); |
| } |
| |
| /** |
| * Gets the adjusted {@link WallpaperColors} if the wallpaper colors were not extracted from |
| * bitmap (i.e. it's a live wallpaper) and the dim amount is not 0. If these conditions apply, |
| * default to using color hints that do not support dark theme and dark text. |
| * |
| * @param wallpaperData WallpaperData containing the WallpaperColors and mWallpaperDimAmount |
| */ |
| WallpaperColors getAdjustedWallpaperColorsOnDimming(WallpaperData wallpaperData) { |
| synchronized (mLock) { |
| WallpaperColors wallpaperColors = wallpaperData.primaryColors; |
| |
| if (wallpaperColors != null |
| && (wallpaperColors.getColorHints() & WallpaperColors.HINT_FROM_BITMAP) == 0 |
| && wallpaperData.mWallpaperDimAmount != 0f) { |
| int adjustedColorHints = wallpaperColors.getColorHints() |
| & ~WallpaperColors.HINT_SUPPORTS_DARK_TEXT |
| & ~WallpaperColors.HINT_SUPPORTS_DARK_THEME; |
| return new WallpaperColors( |
| wallpaperColors.getPrimaryColor(), wallpaperColors.getSecondaryColor(), |
| wallpaperColors.getTertiaryColor(), adjustedColorHints); |
| } |
| return wallpaperColors; |
| } |
| } |
| |
| 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.width() < 0 || cropHint.height() < 0 |
| || 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; |
| final WallpaperData originalSystemWallpaper = mWallpaperMap.get(userId); |
| final boolean systemIsStatic = |
| originalSystemWallpaper != null && mImageWallpaper.equals( |
| originalSystemWallpaper.wallpaperComponent); |
| final boolean systemIsBoth = mLockWallpaperMap.get(userId) == null; |
| |
| /* 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 && systemIsStatic && systemIsBoth) { |
| Slog.i(TAG, "Migrating current wallpaper to be lock-only before" |
| + " updating system wallpaper"); |
| migrateStaticSystemToLockWallpaperLocked(userId); |
| } |
| |
| wallpaper = getWallpaperSafeLocked(userId, which); |
| if (mPendingMigrationViaStatic != null) { |
| Slog.w(TAG, "Starting new static wp migration before previous migration finished"); |
| } |
| mPendingMigrationViaStatic = new WallpaperDestinationChangeHandler(wallpaper); |
| final long ident = Binder.clearCallingIdentity(); |
| try { |
| ParcelFileDescriptor pfd = updateWallpaperBitmapLocked(name, wallpaper, extras); |
| if (pfd != null) { |
| wallpaper.imageWallpaperPending = true; |
| wallpaper.mSystemWasBoth = systemIsBoth; |
| wallpaper.mWhich = which; |
| wallpaper.setComplete = completion; |
| wallpaper.fromForegroundApp = isFromForegroundApp(callingPackage); |
| wallpaper.cropHint.set(cropHint); |
| wallpaper.allowBackup = allowBackup; |
| wallpaper.mWallpaperDimAmount = getWallpaperDimAmount(); |
| } |
| return pfd; |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| } |
| |
| private void migrateStaticSystemToLockWallpaperLocked(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, FLAG_LOCK); |
| lockWP.wallpaperId = sysWP.wallpaperId; |
| lockWP.cropHint.set(sysWP.cropHint); |
| lockWP.allowBackup = sysWP.allowBackup; |
| lockWP.primaryColors = sysWP.primaryColors; |
| lockWP.mWallpaperDimAmount = sysWP.mWallpaperDimAmount; |
| lockWP.mWhich = FLAG_LOCK; |
| |
| // 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()); |
| mLockWallpaperMap.put(userId, lockWP); |
| if (mIsLockscreenLiveWallpaperEnabled) { |
| SELinux.restorecon(lockWP.wallpaperFile); |
| mLastLockWallpaper = lockWP; |
| } |
| } catch (ErrnoException e) { |
| Slog.e(TAG, "Can't migrate system wallpaper: " + e.getMessage()); |
| lockWP.wallpaperFile.delete(); |
| lockWP.cropFile.delete(); |
| return; |
| } |
| } |
| |
| 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)) { |
| Slog.w(TAG, "restorecon failed for wallpaper file: " + |
| wallpaper.wallpaperFile.getPath()); |
| 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; |
| 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, |
| @SetWallpaperFlags int which, int userId) { |
| |
| if (isWallpaperSupported(callingPackage) && isSetWallpaperAllowed(callingPackage)) { |
| setWallpaperComponent(name, callingPackage, which, userId); |
| } |
| } |
| |
| // ToDo: Remove this version of the function |
| @Override |
| public void setWallpaperComponent(ComponentName name) { |
| setWallpaperComponent(name, "", UserHandle.getCallingUserId(), FLAG_SYSTEM); |
| } |
| |
| @VisibleForTesting |
| void setWallpaperComponent(ComponentName name, String callingPackage, |
| @SetWallpaperFlags int which, int userId) { |
| if (mIsLockscreenLiveWallpaperEnabled) { |
| setWallpaperComponentInternal(name, callingPackage, which, userId); |
| } else { |
| setWallpaperComponentInternalLegacy(name, callingPackage, which, userId); |
| } |
| } |
| |
| private void setWallpaperComponentInternal(ComponentName name, String callingPackage, |
| @SetWallpaperFlags int which, int userIdIn) { |
| if (DEBUG) { |
| Slog.v(TAG, "Setting new live wallpaper: which=" + which + ", component: " + name); |
| } |
| final int userId = ActivityManager.handleIncomingUser(getCallingPid(), getCallingUid(), |
| userIdIn, false /* all */, true /* full */, "changing live wallpaper", |
| null /* pkg */); |
| checkPermission(android.Manifest.permission.SET_WALLPAPER_COMPONENT); |
| |
| boolean shouldNotifyColors = false; |
| final WallpaperData newWallpaper; |
| |
| synchronized (mLock) { |
| Slog.v(TAG, "setWallpaperComponent name=" + name); |
| final WallpaperData originalSystemWallpaper = mWallpaperMap.get(userId); |
| if (originalSystemWallpaper == null) { |
| throw new IllegalStateException("Wallpaper not yet initialized for user " + userId); |
| } |
| final boolean systemIsStatic = mImageWallpaper.equals( |
| originalSystemWallpaper.wallpaperComponent); |
| final boolean systemIsBoth = mLockWallpaperMap.get(userId) == null; |
| |
| if (which == FLAG_SYSTEM && systemIsBoth && systemIsStatic) { |
| // Migrate current static system+lock wp to lock only before proceeding. |
| Slog.i(TAG, "Migrating current wallpaper to be lock-only before" |
| + "updating system wallpaper"); |
| migrateStaticSystemToLockWallpaperLocked(userId); |
| } |
| |
| newWallpaper = getWallpaperSafeLocked(userId, which); |
| final long ident = Binder.clearCallingIdentity(); |
| |
| try { |
| newWallpaper.imageWallpaperPending = false; |
| newWallpaper.mWhich = which; |
| newWallpaper.mSystemWasBoth = systemIsBoth; |
| newWallpaper.fromForegroundApp = isFromForegroundApp(callingPackage); |
| final WallpaperDestinationChangeHandler |
| liveSync = new WallpaperDestinationChangeHandler( |
| newWallpaper); |
| boolean same = changingToSame(name, newWallpaper); |
| IRemoteCallback.Stub callback = new IRemoteCallback.Stub() { |
| @Override |
| public void sendResult(Bundle data) throws RemoteException { |
| if (DEBUG) { |
| Slog.d(TAG, "publish system wallpaper changed!"); |
| } |
| liveSync.complete(); |
| } |
| }; |
| |
| /* |
| * If we have a shared system+lock wallpaper, and we reapply the same wallpaper |
| * to system only, force rebind: the current wallpaper will be migrated to lock |
| * and a new engine with the same wallpaper will be applied to system. |
| */ |
| boolean forceRebind = same && systemIsBoth && which == FLAG_SYSTEM; |
| |
| boolean bindSuccess = bindWallpaperComponentLocked(name, /* force */ |
| forceRebind, /* fromUser */ true, newWallpaper, callback); |
| if (bindSuccess) { |
| if (!same) { |
| newWallpaper.primaryColors = null; |
| } else { |
| if (newWallpaper.connection != null) { |
| newWallpaper.connection.forEachDisplayConnector(displayConnector -> { |
| try { |
| if (displayConnector.mEngine != null) { |
| displayConnector.mEngine.dispatchWallpaperCommand( |
| COMMAND_REAPPLY, 0, 0, 0, null); |
| } |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Error sending apply message to wallpaper", e); |
| } |
| }); |
| } |
| } |
| newWallpaper.wallpaperId = makeWallpaperIdLocked(); |
| notifyCallbacksLocked(newWallpaper); |
| shouldNotifyColors = true; |
| |
| if (which == (FLAG_SYSTEM | FLAG_LOCK)) { |
| if (DEBUG) { |
| Slog.v(TAG, "Lock screen wallpaper changed to same as home"); |
| } |
| final WallpaperData lockedWallpaper = mLockWallpaperMap.get( |
| newWallpaper.userId); |
| if (lockedWallpaper != null) { |
| detachWallpaperLocked(lockedWallpaper); |
| if (same) { |
| updateEngineFlags(newWallpaper); |
| } |
| } |
| mLockWallpaperMap.remove(newWallpaper.userId); |
| } |
| } |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| if (shouldNotifyColors) { |
| notifyWallpaperColorsChanged(newWallpaper, which); |
| notifyWallpaperColorsChanged(mFallbackWallpaper, FLAG_SYSTEM); |
| } |
| } |
| |
| // TODO(b/266818039) Remove this method |
| private void setWallpaperComponentInternalLegacy(ComponentName name, String callingPackage, |
| @SetWallpaperFlags int which, 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 legacyWhich = FLAG_SYSTEM; |
| boolean shouldNotifyColors = false; |
| WallpaperData wallpaper; |
| |
| synchronized (mLock) { |
| 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. |
| Slog.i(TAG, "Migrating current wallpaper to be lock-only before" |
| + "updating system wallpaper"); |
| migrateStaticSystemToLockWallpaperLocked(userId); |
| } |
| } |
| |
| // New live wallpaper is also a lock wallpaper if nothing is set |
| if (mLockWallpaperMap.get(userId) == null) { |
| legacyWhich |= FLAG_LOCK; |
| } |
| |
| try { |
| wallpaper.imageWallpaperPending = false; |
| wallpaper.mWhich = which; |
| wallpaper.fromForegroundApp = isFromForegroundApp(callingPackage); |
| boolean same = changingToSame(name, wallpaper); |
| if (bindWallpaperComponentLocked(name, false, true, wallpaper, null)) { |
| if (!same) { |
| wallpaper.primaryColors = null; |
| } else { |
| if (wallpaper.connection != null) { |
| wallpaper.connection.forEachDisplayConnector(displayConnector -> { |
| try { |
| if (displayConnector.mEngine != null) { |
| displayConnector.mEngine.dispatchWallpaperCommand( |
| COMMAND_REAPPLY, 0, 0, 0, null); |
| } |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Error sending apply message to wallpaper", e); |
| } |
| }); |
| } |
| } |
| wallpaper.wallpaperId = makeWallpaperIdLocked(); |
| notifyCallbacksLocked(wallpaper); |
| shouldNotifyColors = true; |
| } |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| if (shouldNotifyColors) { |
| notifyWallpaperColorsChanged(wallpaper, legacyWhich); |
| 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; |
| } |
| |
| 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; |
| } |
| |
| TimingsTraceAndSlog t = new TimingsTraceAndSlog(TAG); |
| t.traceBegin("WPMS.bindWallpaperComponentLocked-" + componentName); |
| try { |
| if (componentName == null) { |
| componentName = mDefaultWallpaperComponent; |
| if (componentName == null) { |
| // Fall back to static image wallpaper |
| componentName = mImageWallpaper; |
| 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; |
| } |
| |
| // This will only get set for non-static wallpapers. |
| WallpaperInfo wi = null; |
| |
| Intent intent = new Intent(WallpaperService.SERVICE_INTERFACE); |
| if (componentName != null && !componentName.equals(mImageWallpaper)) { |
| // The requested component is not the static wallpaper service, so make sure it's |
| // 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 != 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; |
| } |
| } |
| |
| final ActivityOptions clientOptions = ActivityOptions.makeBasic() |
| .setPendingIntentCreatorBackgroundActivityStartMode( |
| ActivityOptions.MODE_BACKGROUND_ACTIVITY_START_DENIED); |
| PendingIntent clientIntent = PendingIntent.getActivityAsUser( |
| mContext, 0, Intent.createChooser( |
| new Intent(Intent.ACTION_SET_WALLPAPER), |
| mContext.getText(com.android.internal.R.string.chooser_wallpaper)), |
| PendingIntent.FLAG_IMMUTABLE, clientOptions.toBundle(), |
| UserHandle.of(serviceUserId)); |
| |
| // 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, clientIntent); |
| boolean bindSuccess = mContext.bindServiceAsUser(intent, newConn, |
| Context.BIND_AUTO_CREATE | Context.BIND_SHOWING_UI |
| | Context.BIND_FOREGROUND_SERVICE_WHILE_AWAKE |
| | Context.BIND_INCLUDE_CAPABILITIES, |
| new UserHandle(serviceUserId)); |
| if (!bindSuccess) { |
| String msg = "Unable to bind service: " + componentName; |
| if (fromUser) { |
| throw new IllegalArgumentException(msg); |
| } |
| Slog.w(TAG, msg); |
| return false; |
| } |
| if (mIsLockscreenLiveWallpaperEnabled) { |
| maybeDetachLastWallpapers(wallpaper); |
| } else if (wallpaper.userId == mCurrentUserId && mLastWallpaper != null |
| && !wallpaper.equals(mFallbackWallpaper)) { |
| detachWallpaperLocked(mLastWallpaper); |
| } |
| wallpaper.wallpaperComponent = componentName; |
| wallpaper.connection = newConn; |
| newConn.mReply = reply; |
| if (mIsLockscreenLiveWallpaperEnabled) { |
| updateCurrentWallpapers(wallpaper); |
| } else 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; |
| } finally { |
| t.traceEnd(); |
| } |
| return true; |
| } |
| |
| // Updates tracking of the currently bound wallpapers. |
| // Assumes isLockscreenLiveWallpaperEnabled is true. |
| private void updateCurrentWallpapers(WallpaperData newWallpaper) { |
| if (newWallpaper.userId != mCurrentUserId || newWallpaper.equals(mFallbackWallpaper)) { |
| return; |
| } |
| if (newWallpaper.mWhich == (FLAG_SYSTEM | FLAG_LOCK)) { |
| mLastWallpaper = newWallpaper; |
| } else if (newWallpaper.mWhich == FLAG_SYSTEM) { |
| mLastWallpaper = newWallpaper; |
| } else if (newWallpaper.mWhich == FLAG_LOCK) { |
| mLastLockWallpaper = newWallpaper; |
| } |
| } |
| |
| // Detaches previously bound wallpapers if no longer in use. Assumes |
| // isLockscreenLiveWallpaperEnabled is true. |
| private void maybeDetachLastWallpapers(WallpaperData newWallpaper) { |
| if (newWallpaper.userId != mCurrentUserId || newWallpaper.equals(mFallbackWallpaper)) { |
| return; |
| } |
| boolean homeUpdated = (newWallpaper.mWhich & FLAG_SYSTEM) != 0; |
| boolean lockUpdated = (newWallpaper.mWhich & FLAG_LOCK) != 0; |
| boolean systemWillBecomeLock = newWallpaper.mSystemWasBoth && !lockUpdated; |
| if (mLastWallpaper != null && homeUpdated && !systemWillBecomeLock) { |
| detachWallpaperLocked(mLastWallpaper); |
| } |
| if (mLastLockWallpaper != null && lockUpdated) { |
| detachWallpaperLocked(mLastLockWallpaper); |
| } |
| } |
| |
| // Frees up all rendering resources used by the given wallpaper so that the WallpaperData object |
| // can be reused: detaches Engine, unbinds WallpaperService, etc. |
| private void detachWallpaperLocked(WallpaperData wallpaper) { |
| if (wallpaper.connection != null) { |
| if (DEBUG) { |
| Slog.v(TAG, "Detaching wallpaper: " + wallpaper); |
| } |
| if (wallpaper.connection.mReply != null) { |
| try { |
| wallpaper.connection.mReply.sendResult(null); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Error sending reply to wallpaper before disconnect", e); |
| } |
| wallpaper.connection.mReply = null; |
| } |
| wallpaper.connection.forEachDisplayConnector( |
| connector -> connector.disconnectLocked(wallpaper.connection)); |
| wallpaper.connection.mService = null; |
| wallpaper.connection.mDisplayConnector.clear(); |
| |
| FgThread.getHandler().removeCallbacks(wallpaper.connection.mResetRunnable); |
| mContext.getMainThreadHandler().removeCallbacks( |
| wallpaper.connection.mDisconnectRunnable); |
| mContext.getMainThreadHandler().removeCallbacks( |
| wallpaper.connection.mTryToRebindRunnable); |
| |
| mContext.unbindService(wallpaper.connection); |
| wallpaper.connection = null; |
| if (wallpaper == mLastWallpaper) { |
| mLastWallpaper = null; |
| } |
| if (wallpaper == mLastLockWallpaper) { |
| mLastLockWallpaper = null; |
| } |
| } |
| } |
| |
| // Updates the given wallpaper's Engine so that its destination flags are the same as those of |
| // the wallpaper, e.g., after a wallpaper has been changed from displaying on home+lock to home |
| // or lock only. |
| private void updateEngineFlags(WallpaperData wallpaper) { |
| if (wallpaper.connection == null) { |
| return; |
| } |
| wallpaper.connection.forEachDisplayConnector( |
| connector -> { |
| try { |
| if (connector.mEngine != null) { |
| connector.mEngine.setWallpaperFlags(wallpaper.mWhich); |
| mWindowManagerInternal.setWallpaperShowWhenLocked( |
| connector.mToken, (wallpaper.mWhich & FLAG_LOCK) != 0); |
| } |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Failed to update wallpaper engine flags", e); |
| } |
| }); |
| } |
| |
| private void clearWallpaperComponentLocked(WallpaperData wallpaper) { |
| wallpaper.wallpaperComponent = null; |
| detachWallpaperLocked(wallpaper); |
| } |
| |
| private void attachServiceLocked(WallpaperConnection conn, WallpaperData wallpaper) { |
| TimingsTraceAndSlog t = new TimingsTraceAndSlog(TAG); |
| t.traceBegin("WPMS.attachServiceLocked"); |
| conn.forEachDisplayConnector(connector-> connector.connectLocked(conn, wallpaper)); |
| t.traceEnd(); |
| } |
| |
| 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. |
| Slog.w(TAG, "Failed to notify callbacks about wallpaper changes", e); |
| } |
| } |
| wallpaper.callbacks.finishBroadcast(); |
| |
| final Intent intent = new Intent(Intent.ACTION_WALLPAPER_CHANGED); |
| intent.putExtra(WallpaperManager.EXTRA_FROM_FOREGROUND_APP, wallpaper.fromForegroundApp); |
| mContext.sendBroadcastAsUser(intent, new UserHandle(mCurrentUserId)); |
| } |
| |
| private void checkPermission(String permission) { |
| if (!hasPermission(permission)) { |
| throw new SecurityException("Access denied to process: " + Binder.getCallingPid() |
| + ", must have permission " + permission); |
| } |
| } |
| |
| private boolean packageBelongsToUid(String packageName, int uid) { |
| int userId = UserHandle.getUserId(uid); |
| int packageUid; |
| try { |
| packageUid = mContext.getPackageManager().getPackageUidAsUser( |
| packageName, userId); |
| } catch (PackageManager.NameNotFoundException e) { |
| return false; |
| } |
| return packageUid == uid; |
| } |
| |
| private void enforcePackageBelongsToUid(String packageName, int uid) { |
| if (!packageBelongsToUid(packageName, uid)) { |
| throw new IllegalArgumentException( |
| "Invalid package or package does not belong to uid:" |
| + uid); |
| } |
| } |
| |
| private boolean isFromForegroundApp(String callingPackage) { |
| return Binder.withCleanCallingIdentity(() -> |
| mActivityManager.getPackageImportance(callingPackage) == IMPORTANCE_FOREGROUND); |
| } |
| |
| /** |
| * 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) { |
| final int callingUid = Binder.getCallingUid(); |
| enforcePackageBelongsToUid(callingPackage, callingUid); |
| |
| return mAppOpsManager.checkOpNoThrow(AppOpsManager.OP_WRITE_WALLPAPER, callingUid, |
| 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 DevicePolicyManagerInternal dpmi = |
| LocalServices.getService(DevicePolicyManagerInternal.class); |
| if (dpmi != null && dpmi.isDeviceOrProfileOwnerInCallingUser(callingPackage)) { |
| return true; |
| } |
| final int callingUserId = UserHandle.getCallingUserId(); |
| final long ident = Binder.clearCallingIdentity(); |
| try { |
| UserManagerInternal umi = LocalServices.getService(UserManagerInternal.class); |
| return !umi.hasUserRestriction(UserManager.DISALLOW_SET_WALLPAPER, callingUserId); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| @Override |
| public boolean isWallpaperBackupEligible(int which, int userId) { |
| WallpaperData wallpaper = (which == FLAG_LOCK) |
| ? mLockWallpaperMap.get(userId) |
| : mWallpaperMap.get(userId); |
| return (wallpaper != null) ? wallpaper.allowBackup : false; |
| } |
| |
| @Override |
| public boolean isLockscreenLiveWallpaperEnabled() { |
| return mIsLockscreenLiveWallpaperEnabled; |
| } |
| |
| @Override |
| public boolean isMultiCropEnabled() { |
| return mIsMultiCropEnabled; |
| } |
| |
| private void onDisplayReadyInternal(int displayId) { |
| synchronized (mLock) { |
| if (mLastWallpaper == null) { |
| return; |
| } |
| if (supportsMultiDisplay(mLastWallpaper.connection)) { |
| final 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 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"); |
| } |
| } |
| } |
| |
| void saveSettingsLocked(int userId) { |
| TimingsTraceAndSlog t = new TimingsTraceAndSlog(TAG); |
| t.traceBegin("WPMS.saveSettingsLocked-" + userId); |
| mWallpaperDataParser.saveSettingsLocked( |
| userId, mWallpaperMap.get(userId), mLockWallpaperMap.get(userId)); |
| t.traceEnd(); |
| } |
| |
| /** |
| * Determines and returns the current wallpaper for the given user and destination, creating |
| * a valid entry if it does not already exist and adding it to the appropriate wallpaper map. |
| * |
| * 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. |
| */ |
| 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. |
| int whichLoad = (which == FLAG_LOCK) ? FLAG_LOCK : FLAG_SYSTEM; |
| loadSettingsLocked(userId, false, whichLoad); |
| wallpaper = whichSet.get(userId); |
| if (wallpaper == null) { |
| // if it's still null here, this is likely a lock-only operation and there is not |
| // currently a lock-only wallpaper set for this user, so we need to establish |
| // it now. |
| if (which == FLAG_LOCK) { |
| wallpaper = new WallpaperData(userId, FLAG_LOCK); |
| mLockWallpaperMap.put(userId, wallpaper); |
| } else { |
| // rationality 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, FLAG_SYSTEM); |
| mWallpaperMap.put(userId, wallpaper); |
| } |
| } |
| } |
| return wallpaper; |
| } |
| |
| private void loadSettingsLocked(int userId, boolean keepDimensionHints, int which) { |
| initializeFallbackWallpaper(); |
| WallpaperData wallpaperData = mWallpaperMap.get(userId); |
| WallpaperData lockWallpaperData = mLockWallpaperMap.get(userId); |
| WallpaperDataParser.WallpaperLoadingResult result = mWallpaperDataParser.loadSettingsLocked( |
| userId, keepDimensionHints, wallpaperData, lockWallpaperData, which); |
| |
| boolean updateSystem = !mIsLockscreenLiveWallpaperEnabled || (which & FLAG_SYSTEM) != 0; |
| boolean updateLock = !mIsLockscreenLiveWallpaperEnabled || (which & FLAG_LOCK) != 0; |
| |
| if (updateSystem) mWallpaperMap.put(userId, result.getSystemWallpaperData()); |
| if (updateLock) { |
| if (result.success()) { |
| mLockWallpaperMap.put(userId, result.getLockWallpaperData()); |
| } else { |
| mLockWallpaperMap.remove(userId); |
| } |
| } |
| } |
| |
| private void initializeFallbackWallpaper() { |
| if (mFallbackWallpaper == null) { |
| if (DEBUG) Slog.d(TAG, "Initialize fallback wallpaper"); |
| final int systemUserId = UserHandle.USER_SYSTEM; |
| mFallbackWallpaper = new WallpaperData(systemUserId, FLAG_SYSTEM); |
| mFallbackWallpaper.allowBackup = false; |
| mFallbackWallpaper.wallpaperId = makeWallpaperIdLocked(); |
| bindWallpaperComponentLocked(mImageWallpaper, true, false, mFallbackWallpaper, null); |
| } |
| } |
| |
| // 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, FLAG_SYSTEM | FLAG_LOCK); |
| 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 = mWallpaperDataParser.restoreNamedResourceLocked(wallpaper); |
| } |
| if (DEBUG) Slog.v(TAG, "settingsRestored: success=" + success |
| + " id=" + wallpaper.wallpaperId); |
| if (success) { |
| mWallpaperCropper.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); |
| } |
| } |
| |
| @Override // Binder call |
| public void onShellCommand(FileDescriptor in, FileDescriptor out, |
| FileDescriptor err, String[] args, ShellCallback callback, |
| ResultReceiver resultReceiver) { |
| new WallpaperManagerShellCommand(WallpaperManagerService.this).exec(this, in, out, err, |
| args, callback, resultReceiver); |
| } |
| |
| private void dumpWallpaper(WallpaperData wallpaper, PrintWriter pw) { |
| if (wallpaper == null) { |
| pw.println(" (null entry)"); |
| return; |
| } |
| pw.print(" User "); pw.print(wallpaper.userId); |
| pw.print(": id="); pw.print(wallpaper.wallpaperId); |
| pw.print(": mWhich="); pw.print(wallpaper.mWhich); |
| pw.print(": mSystemWasBoth="); pw.println(wallpaper.mSystemWasBoth); |
| pw.println(" Display state:"); |
| mWallpaperDisplayHelper.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); |
| pw.print(" mWallpaperDimAmount="); pw.println(wallpaper.mWallpaperDimAmount); |
| pw.print(" isColorExtracted="); pw.println(wallpaper.mIsColorExtractedFromDim); |
| pw.println(" mUidToDimAmount:"); |
| for (int j = 0; j < wallpaper.mUidToDimAmount.size(); j++) { |
| pw.print(" UID="); pw.print(wallpaper.mUidToDimAmount.keyAt(j)); |
| pw.print(" dimAmount="); pw.println(wallpaper.mUidToDimAmount.valueAt(j)); |
| } |
| 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()); |
| } |
| } |
| |
| @Override |
| protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| if (!DumpUtils.checkDumpPermission(mContext, TAG, pw)) return; |
| |
| pw.print("mDefaultWallpaperComponent="); pw.println(mDefaultWallpaperComponent); |
| pw.print("mImageWallpaper="); pw.println(mImageWallpaper); |
| |
| synchronized (mLock) { |
| pw.println("System wallpaper state:"); |
| for (int i = 0; i < mWallpaperMap.size(); i++) { |
| dumpWallpaper(mWallpaperMap.valueAt(i), pw); |
| } |
| pw.println("Lock wallpaper state:"); |
| for (int i = 0; i < mLockWallpaperMap.size(); i++) { |
| dumpWallpaper(mLockWallpaperMap.valueAt(i), pw); |
| } |
| pw.println("Fallback wallpaper state:"); |
| if (mFallbackWallpaper != null) { |
| dumpWallpaper(mFallbackWallpaper, pw); |
| } |
| pw.print("mIsLockscreenLiveWallpaperEnabled="); |
| pw.println(mIsLockscreenLiveWallpaperEnabled); |
| } |
| } |
| } |