diff options
Diffstat (limited to 'services/java/com/android/server/WallpaperManagerService.java')
| -rw-r--r-- | services/java/com/android/server/WallpaperManagerService.java | 1345 |
1 files changed, 0 insertions, 1345 deletions
diff --git a/services/java/com/android/server/WallpaperManagerService.java b/services/java/com/android/server/WallpaperManagerService.java deleted file mode 100644 index e6b6b93..0000000 --- a/services/java/com/android/server/WallpaperManagerService.java +++ /dev/null @@ -1,1345 +0,0 @@ -/* - * 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; - -import static android.os.ParcelFileDescriptor.*; - -import android.app.ActivityManagerNative; -import android.app.AppGlobals; -import android.app.IUserSwitchObserver; -import android.app.IWallpaperManager; -import android.app.IWallpaperManagerCallback; -import android.app.PendingIntent; -import android.app.WallpaperInfo; -import android.app.backup.BackupManager; -import android.app.backup.WallpaperBackupHelper; -import android.content.BroadcastReceiver; -import android.content.ComponentName; -import android.content.Context; -import android.content.Intent; -import android.content.IntentFilter; -import android.content.ServiceConnection; -import android.content.pm.IPackageManager; -import android.content.pm.PackageManager; -import android.content.pm.ResolveInfo; -import android.content.pm.ServiceInfo; -import android.content.pm.PackageManager.NameNotFoundException; -import android.content.pm.UserInfo; -import android.content.res.Resources; -import android.graphics.Point; -import android.os.Binder; -import android.os.Bundle; -import android.os.Environment; -import android.os.FileUtils; -import android.os.IBinder; -import android.os.IRemoteCallback; -import android.os.RemoteException; -import android.os.FileObserver; -import android.os.ParcelFileDescriptor; -import android.os.RemoteCallbackList; -import android.os.SELinux; -import android.os.ServiceManager; -import android.os.SystemClock; -import android.os.UserHandle; -import android.os.UserManager; -import android.service.wallpaper.IWallpaperConnection; -import android.service.wallpaper.IWallpaperEngine; -import android.service.wallpaper.IWallpaperService; -import android.service.wallpaper.WallpaperService; -import android.util.Slog; -import android.util.SparseArray; -import android.util.Xml; -import android.view.Display; -import android.view.IWindowManager; -import android.view.WindowManager; - -import java.io.FileDescriptor; -import java.io.IOException; -import java.io.InputStream; -import java.io.File; -import java.io.FileNotFoundException; -import java.io.FileInputStream; -import java.io.FileOutputStream; -import java.io.PrintWriter; -import java.util.List; - -import org.xmlpull.v1.XmlPullParser; -import org.xmlpull.v1.XmlPullParserException; -import org.xmlpull.v1.XmlSerializer; - -import com.android.internal.content.PackageMonitor; -import com.android.internal.util.FastXmlSerializer; -import com.android.internal.util.JournaledFile; - -class WallpaperManagerService extends IWallpaperManager.Stub { - static final String TAG = "WallpaperService"; - static final boolean DEBUG = false; - - final Object mLock = new Object[0]; - - /** - * Minimum time between crashes of a wallpaper service for us to consider - * restarting it vs. just reverting to the static wallpaper. - */ - static final long MIN_WALLPAPER_CRASH_TIME = 10000; - static final String WALLPAPER = "wallpaper"; - static final String WALLPAPER_INFO = "wallpaper_info.xml"; - - /** - * Name of the component used to display bitmap wallpapers from either the gallery or - * built-in wallpapers. - */ - static final ComponentName IMAGE_WALLPAPER = new ComponentName("com.android.systemui", - "com.android.systemui.ImageWallpaper"); - - /** - * Observes the wallpaper for changes and notifies all IWallpaperServiceCallbacks - * that the wallpaper has changed. The CREATE is triggered when there is no - * wallpaper set and is created for the first time. The CLOSE_WRITE is triggered - * everytime the wallpaper is changed. - */ - private class WallpaperObserver extends FileObserver { - - final WallpaperData mWallpaper; - final File mWallpaperDir; - final File mWallpaperFile; - - public WallpaperObserver(WallpaperData wallpaper) { - super(getWallpaperDir(wallpaper.userId).getAbsolutePath(), - CLOSE_WRITE | DELETE | DELETE_SELF); - mWallpaperDir = getWallpaperDir(wallpaper.userId); - mWallpaper = wallpaper; - mWallpaperFile = new File(mWallpaperDir, WALLPAPER); - } - - @Override - public void onEvent(int event, String path) { - if (path == null) { - return; - } - synchronized (mLock) { - // changing the wallpaper means we'll need to back up the new one - long origId = Binder.clearCallingIdentity(); - BackupManager bm = new BackupManager(mContext); - bm.dataChanged(); - Binder.restoreCallingIdentity(origId); - - File changedFile = new File(mWallpaperDir, path); - if (mWallpaperFile.equals(changedFile)) { - notifyCallbacksLocked(mWallpaper); - if (mWallpaper.wallpaperComponent == null || event != CLOSE_WRITE - || mWallpaper.imageWallpaperPending) { - if (event == CLOSE_WRITE) { - mWallpaper.imageWallpaperPending = false; - } - bindWallpaperComponentLocked(IMAGE_WALLPAPER, true, - false, mWallpaper, null); - saveSettingsLocked(mWallpaper); - } - } - } - } - } - - final Context mContext; - final IWindowManager mIWindowManager; - final IPackageManager mIPackageManager; - final MyPackageMonitor mMonitor; - WallpaperData mLastWallpaper; - - SparseArray<WallpaperData> mWallpaperMap = new SparseArray<WallpaperData>(); - - int mCurrentUserId; - - static class WallpaperData { - - int userId; - - File wallpaperFile; - - /** - * Client is currently writing a new image wallpaper. - */ - boolean imageWallpaperPending; - - /** - * Resource name if using a picture from the wallpaper gallery - */ - String name = ""; - - /** - * The component name of the currently set live wallpaper. - */ - ComponentName wallpaperComponent; - - /** - * The component name of the wallpaper that should be set next. - */ - ComponentName nextWallpaperComponent; - - WallpaperConnection connection; - long lastDiedTime; - boolean wallpaperUpdating; - WallpaperObserver wallpaperObserver; - - /** - * List of callbacks registered they should each be notified when the wallpaper is changed. - */ - private RemoteCallbackList<IWallpaperManagerCallback> callbacks - = new RemoteCallbackList<IWallpaperManagerCallback>(); - - int width = -1; - int height = -1; - - WallpaperData(int userId) { - this.userId = userId; - wallpaperFile = new File(getWallpaperDir(userId), WALLPAPER); - } - } - - class WallpaperConnection extends IWallpaperConnection.Stub - implements ServiceConnection { - final WallpaperInfo mInfo; - final Binder mToken = new Binder(); - IWallpaperService mService; - IWallpaperEngine mEngine; - WallpaperData mWallpaper; - IRemoteCallback mReply; - - boolean mDimensionsChanged = false; - - public WallpaperConnection(WallpaperInfo info, WallpaperData wallpaper) { - mInfo = info; - mWallpaper = wallpaper; - } - - @Override - public void onServiceConnected(ComponentName name, IBinder service) { - synchronized (mLock) { - if (mWallpaper.connection == this) { - mWallpaper.lastDiedTime = SystemClock.uptimeMillis(); - mService = IWallpaperService.Stub.asInterface(service); - attachServiceLocked(this, mWallpaper); - // XXX should probably do saveSettingsLocked() later - // when we have an engine, but I'm not sure about - // locking there and anyway we always need to be able to - // recover if there is something wrong. - saveSettingsLocked(mWallpaper); - } - } - } - - @Override - public void onServiceDisconnected(ComponentName name) { - synchronized (mLock) { - mService = null; - mEngine = null; - if (mWallpaper.connection == this) { - Slog.w(TAG, "Wallpaper service gone: " + mWallpaper.wallpaperComponent); - if (!mWallpaper.wallpaperUpdating - && (mWallpaper.lastDiedTime + MIN_WALLPAPER_CRASH_TIME) - > SystemClock.uptimeMillis() - && mWallpaper.userId == mCurrentUserId) { - Slog.w(TAG, "Reverting to built-in wallpaper!"); - clearWallpaperLocked(true, mWallpaper.userId, null); - } - } - } - } - - @Override - public void attachEngine(IWallpaperEngine engine) { - synchronized (mLock) { - mEngine = engine; - if (mDimensionsChanged) { - try { - mEngine.setDesiredSize(mWallpaper.width, mWallpaper.height); - } catch (RemoteException e) { - Slog.w(TAG, "Failed to set wallpaper dimensions", e); - } - mDimensionsChanged = false; - } - } - } - - @Override - public void engineShown(IWallpaperEngine engine) { - synchronized (mLock) { - if (mReply != null) { - long ident = Binder.clearCallingIdentity(); - try { - mReply.sendResult(null); - } catch (RemoteException e) { - Binder.restoreCallingIdentity(ident); - } - mReply = null; - } - } - } - - @Override - public ParcelFileDescriptor setWallpaper(String name) { - synchronized (mLock) { - if (mWallpaper.connection == this) { - return updateWallpaperBitmapLocked(name, mWallpaper); - } - return null; - } - } - } - - class MyPackageMonitor extends PackageMonitor { - @Override - public void onPackageUpdateFinished(String packageName, int uid) { - synchronized (mLock) { - if (mCurrentUserId != getChangingUserId()) { - return; - } - WallpaperData wallpaper = mWallpaperMap.get(mCurrentUserId); - if (wallpaper != null) { - if (wallpaper.wallpaperComponent != null - && wallpaper.wallpaperComponent.getPackageName().equals(packageName)) { - wallpaper.wallpaperUpdating = false; - ComponentName comp = wallpaper.wallpaperComponent; - clearWallpaperComponentLocked(wallpaper); - if (!bindWallpaperComponentLocked(comp, false, false, - wallpaper, null)) { - Slog.w(TAG, "Wallpaper no longer available; reverting to default"); - clearWallpaperLocked(false, wallpaper.userId, null); - } - } - } - } - } - - @Override - public void onPackageModified(String packageName) { - synchronized (mLock) { - if (mCurrentUserId != getChangingUserId()) { - return; - } - WallpaperData wallpaper = mWallpaperMap.get(mCurrentUserId); - if (wallpaper != null) { - if (wallpaper.wallpaperComponent == null - || !wallpaper.wallpaperComponent.getPackageName().equals(packageName)) { - return; - } - doPackagesChangedLocked(true, wallpaper); - } - } - } - - @Override - public void onPackageUpdateStarted(String packageName, int uid) { - synchronized (mLock) { - if (mCurrentUserId != getChangingUserId()) { - return; - } - WallpaperData wallpaper = mWallpaperMap.get(mCurrentUserId); - if (wallpaper != null) { - if (wallpaper.wallpaperComponent != null - && wallpaper.wallpaperComponent.getPackageName().equals(packageName)) { - wallpaper.wallpaperUpdating = true; - } - } - } - } - - @Override - public boolean onHandleForceStop(Intent intent, String[] packages, int uid, boolean doit) { - synchronized (mLock) { - boolean changed = false; - if (mCurrentUserId != getChangingUserId()) { - return false; - } - WallpaperData wallpaper = mWallpaperMap.get(mCurrentUserId); - if (wallpaper != null) { - boolean res = doPackagesChangedLocked(doit, wallpaper); - changed |= res; - } - return changed; - } - } - - @Override - public void onSomePackagesChanged() { - synchronized (mLock) { - if (mCurrentUserId != getChangingUserId()) { - return; - } - WallpaperData wallpaper = mWallpaperMap.get(mCurrentUserId); - if (wallpaper != null) { - doPackagesChangedLocked(true, wallpaper); - } - } - } - - boolean doPackagesChangedLocked(boolean doit, WallpaperData wallpaper) { - boolean changed = false; - if (wallpaper.wallpaperComponent != null) { - int change = isPackageDisappearing(wallpaper.wallpaperComponent - .getPackageName()); - if (change == PACKAGE_PERMANENT_CHANGE - || change == PACKAGE_TEMPORARY_CHANGE) { - changed = true; - if (doit) { - Slog.w(TAG, "Wallpaper uninstalled, removing: " - + wallpaper.wallpaperComponent); - clearWallpaperLocked(false, wallpaper.userId, null); - } - } - } - if (wallpaper.nextWallpaperComponent != null) { - int change = isPackageDisappearing(wallpaper.nextWallpaperComponent - .getPackageName()); - if (change == PACKAGE_PERMANENT_CHANGE - || change == PACKAGE_TEMPORARY_CHANGE) { - wallpaper.nextWallpaperComponent = null; - } - } - if (wallpaper.wallpaperComponent != null - && isPackageModified(wallpaper.wallpaperComponent.getPackageName())) { - try { - mContext.getPackageManager().getServiceInfo( - wallpaper.wallpaperComponent, 0); - } catch (NameNotFoundException e) { - Slog.w(TAG, "Wallpaper component gone, removing: " - + wallpaper.wallpaperComponent); - clearWallpaperLocked(false, wallpaper.userId, null); - } - } - if (wallpaper.nextWallpaperComponent != null - && isPackageModified(wallpaper.nextWallpaperComponent.getPackageName())) { - try { - mContext.getPackageManager().getServiceInfo( - wallpaper.nextWallpaperComponent, 0); - } catch (NameNotFoundException e) { - wallpaper.nextWallpaperComponent = null; - } - } - return changed; - } - } - - public WallpaperManagerService(Context context) { - if (DEBUG) Slog.v(TAG, "WallpaperService startup"); - mContext = context; - mIWindowManager = IWindowManager.Stub.asInterface( - ServiceManager.getService(Context.WINDOW_SERVICE)); - mIPackageManager = AppGlobals.getPackageManager(); - mMonitor = new MyPackageMonitor(); - mMonitor.register(context, null, UserHandle.ALL, true); - getWallpaperDir(UserHandle.USER_OWNER).mkdirs(); - loadSettingsLocked(UserHandle.USER_OWNER); - } - - private static File getWallpaperDir(int userId) { - return Environment.getUserSystemDirectory(userId); - } - - @Override - protected void finalize() throws Throwable { - super.finalize(); - for (int i = 0; i < mWallpaperMap.size(); i++) { - WallpaperData wallpaper = mWallpaperMap.valueAt(i); - wallpaper.wallpaperObserver.stopWatching(); - } - } - - public void systemRunning() { - if (DEBUG) Slog.v(TAG, "systemReady"); - WallpaperData wallpaper = mWallpaperMap.get(UserHandle.USER_OWNER); - switchWallpaper(wallpaper, null); - wallpaper.wallpaperObserver = new WallpaperObserver(wallpaper); - wallpaper.wallpaperObserver.startWatching(); - - IntentFilter userFilter = new IntentFilter(); - userFilter.addAction(Intent.ACTION_USER_REMOVED); - userFilter.addAction(Intent.ACTION_USER_STOPPING); - mContext.registerReceiver(new BroadcastReceiver() { - @Override - public void onReceive(Context context, Intent intent) { - String action = intent.getAction(); - if (Intent.ACTION_USER_REMOVED.equals(action)) { - onRemoveUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, - UserHandle.USER_NULL)); - } - // TODO: Race condition causing problems when cleaning up on stopping a user. - // Comment this out for now. - // else if (Intent.ACTION_USER_STOPPING.equals(action)) { - // onStoppingUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, - // UserHandle.USER_NULL)); - // } - } - }, userFilter); - - try { - ActivityManagerNative.getDefault().registerUserSwitchObserver( - new IUserSwitchObserver.Stub() { - @Override - public void onUserSwitching(int newUserId, IRemoteCallback reply) { - switchUser(newUserId, reply); - } - - @Override - public void onUserSwitchComplete(int newUserId) throws RemoteException { - } - }); - } catch (RemoteException e) { - // TODO Auto-generated catch block - e.printStackTrace(); - } - } - - String getName() { - synchronized (mLock) { - return mWallpaperMap.get(0).name; - } - } - - void onStoppingUser(int userId) { - if (userId < 1) return; - synchronized (mLock) { - WallpaperData wallpaper = mWallpaperMap.get(userId); - if (wallpaper != null) { - if (wallpaper.wallpaperObserver != null) { - wallpaper.wallpaperObserver.stopWatching(); - wallpaper.wallpaperObserver = null; - } - mWallpaperMap.remove(userId); - } - } - } - - void onRemoveUser(int userId) { - if (userId < 1) return; - synchronized (mLock) { - onStoppingUser(userId); - File wallpaperFile = new File(getWallpaperDir(userId), WALLPAPER); - wallpaperFile.delete(); - File wallpaperInfoFile = new File(getWallpaperDir(userId), WALLPAPER_INFO); - wallpaperInfoFile.delete(); - } - } - - void switchUser(int userId, IRemoteCallback reply) { - synchronized (mLock) { - mCurrentUserId = userId; - WallpaperData wallpaper = mWallpaperMap.get(userId); - if (wallpaper == null) { - wallpaper = new WallpaperData(userId); - mWallpaperMap.put(userId, wallpaper); - loadSettingsLocked(userId); - } - // Not started watching yet, in case wallpaper data was loaded for other reasons. - if (wallpaper.wallpaperObserver == null) { - wallpaper.wallpaperObserver = new WallpaperObserver(wallpaper); - wallpaper.wallpaperObserver.startWatching(); - } - switchWallpaper(wallpaper, reply); - } - } - - void switchWallpaper(WallpaperData wallpaper, IRemoteCallback reply) { - synchronized (mLock) { - RuntimeException e = null; - try { - ComponentName cname = wallpaper.wallpaperComponent != null ? - wallpaper.wallpaperComponent : wallpaper.nextWallpaperComponent; - if (bindWallpaperComponentLocked(cname, true, false, wallpaper, reply)) { - return; - } - } catch (RuntimeException e1) { - e = e1; - } - Slog.w(TAG, "Failure starting previous wallpaper", e); - clearWallpaperLocked(false, wallpaper.userId, reply); - } - } - - public void clearWallpaper() { - if (DEBUG) Slog.v(TAG, "clearWallpaper"); - synchronized (mLock) { - clearWallpaperLocked(false, UserHandle.getCallingUserId(), null); - } - } - - void clearWallpaperLocked(boolean defaultFailed, int userId, IRemoteCallback reply) { - WallpaperData wallpaper = mWallpaperMap.get(userId); - File f = new File(getWallpaperDir(userId), WALLPAPER); - if (f.exists()) { - f.delete(); - } - final long ident = Binder.clearCallingIdentity(); - RuntimeException e = null; - try { - wallpaper.imageWallpaperPending = false; - if (userId != mCurrentUserId) return; - if (bindWallpaperComponentLocked(defaultFailed - ? IMAGE_WALLPAPER - : null, true, false, wallpaper, reply)) { - return; - } - } catch (IllegalArgumentException e1) { - e = e1; - } finally { - Binder.restoreCallingIdentity(ident); - } - - // 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) { - } - } - } - - public boolean hasNamedWallpaper(String name) { - synchronized (mLock) { - List<UserInfo> users; - long ident = Binder.clearCallingIdentity(); - try { - users = ((UserManager) mContext.getSystemService(Context.USER_SERVICE)).getUsers(); - } finally { - Binder.restoreCallingIdentity(ident); - } - for (UserInfo user: users) { - WallpaperData wd = mWallpaperMap.get(user.id); - if (wd == null) { - // User hasn't started yet, so load her settings to peek at the wallpaper - loadSettingsLocked(user.id); - wd = mWallpaperMap.get(user.id); - } - if (wd != null && name.equals(wd.name)) { - return true; - } - } - } - return false; - } - - private Point getDefaultDisplaySize() { - Point p = new Point(); - WindowManager wm = (WindowManager)mContext.getSystemService(Context.WINDOW_SERVICE); - Display d = wm.getDefaultDisplay(); - d.getRealSize(p); - return p; - } - - public void setDimensionHints(int width, int height) throws RemoteException { - checkPermission(android.Manifest.permission.SET_WALLPAPER_HINTS); - synchronized (mLock) { - int userId = UserHandle.getCallingUserId(); - WallpaperData wallpaper = mWallpaperMap.get(userId); - if (wallpaper == null) { - throw new IllegalStateException("Wallpaper not yet initialized for user " + userId); - } - if (width <= 0 || height <= 0) { - throw new IllegalArgumentException("width and height must be > 0"); - } - // Make sure it is at least as large as the display. - Point displaySize = getDefaultDisplaySize(); - width = Math.max(width, displaySize.x); - height = Math.max(height, displaySize.y); - - if (width != wallpaper.width || height != wallpaper.height) { - wallpaper.width = width; - wallpaper.height = height; - saveSettingsLocked(wallpaper); - if (mCurrentUserId != userId) return; // Don't change the properties now - if (wallpaper.connection != null) { - if (wallpaper.connection.mEngine != null) { - try { - wallpaper.connection.mEngine.setDesiredSize( - width, height); - } catch (RemoteException e) { - } - notifyCallbacksLocked(wallpaper); - } else if (wallpaper.connection.mService != null) { - // We've attached to the service but the engine hasn't attached back to us - // yet. This means it will be created with the previous dimensions, so we - // need to update it to the new dimensions once it attaches. - wallpaper.connection.mDimensionsChanged = true; - } - } - } - } - } - - public int getWidthHint() throws RemoteException { - synchronized (mLock) { - WallpaperData wallpaper = mWallpaperMap.get(UserHandle.getCallingUserId()); - return wallpaper.width; - } - } - - public int getHeightHint() throws RemoteException { - synchronized (mLock) { - WallpaperData wallpaper = mWallpaperMap.get(UserHandle.getCallingUserId()); - return wallpaper.height; - } - } - - public ParcelFileDescriptor getWallpaper(IWallpaperManagerCallback cb, - Bundle outParams) { - synchronized (mLock) { - // This returns the current user's wallpaper, if called by a system service. Else it - // returns the wallpaper for the calling user. - int callingUid = Binder.getCallingUid(); - int wallpaperUserId = 0; - if (callingUid == android.os.Process.SYSTEM_UID) { - wallpaperUserId = mCurrentUserId; - } else { - wallpaperUserId = UserHandle.getUserId(callingUid); - } - WallpaperData wallpaper = mWallpaperMap.get(wallpaperUserId); - try { - if (outParams != null) { - outParams.putInt("width", wallpaper.width); - outParams.putInt("height", wallpaper.height); - } - wallpaper.callbacks.register(cb); - File f = new File(getWallpaperDir(wallpaperUserId), WALLPAPER); - if (!f.exists()) { - return null; - } - return ParcelFileDescriptor.open(f, 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; - } - } - - public WallpaperInfo getWallpaperInfo() { - int userId = UserHandle.getCallingUserId(); - synchronized (mLock) { - WallpaperData wallpaper = mWallpaperMap.get(userId); - if (wallpaper.connection != null) { - return wallpaper.connection.mInfo; - } - return null; - } - } - - public ParcelFileDescriptor setWallpaper(String name) { - checkPermission(android.Manifest.permission.SET_WALLPAPER); - synchronized (mLock) { - if (DEBUG) Slog.v(TAG, "setWallpaper"); - int userId = UserHandle.getCallingUserId(); - WallpaperData wallpaper = mWallpaperMap.get(userId); - if (wallpaper == null) { - throw new IllegalStateException("Wallpaper not yet initialized for user " + userId); - } - final long ident = Binder.clearCallingIdentity(); - try { - ParcelFileDescriptor pfd = updateWallpaperBitmapLocked(name, wallpaper); - if (pfd != null) { - wallpaper.imageWallpaperPending = true; - } - return pfd; - } finally { - Binder.restoreCallingIdentity(ident); - } - } - } - - ParcelFileDescriptor updateWallpaperBitmapLocked(String name, WallpaperData wallpaper) { - 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); - } - File file = new File(dir, WALLPAPER); - ParcelFileDescriptor fd = ParcelFileDescriptor.open(file, - MODE_CREATE|MODE_READ_WRITE); - if (!SELinux.restorecon(file)) { - return null; - } - wallpaper.name = name; - return fd; - } catch (FileNotFoundException e) { - Slog.w(TAG, "Error setting wallpaper", e); - } - return null; - } - - public void setWallpaperComponent(ComponentName name) { - checkPermission(android.Manifest.permission.SET_WALLPAPER_COMPONENT); - synchronized (mLock) { - if (DEBUG) Slog.v(TAG, "setWallpaperComponent name=" + name); - int userId = UserHandle.getCallingUserId(); - WallpaperData wallpaper = mWallpaperMap.get(userId); - if (wallpaper == null) { - throw new IllegalStateException("Wallpaper not yet initialized for user " + userId); - } - final long ident = Binder.clearCallingIdentity(); - try { - wallpaper.imageWallpaperPending = false; - bindWallpaperComponentLocked(name, false, true, wallpaper, null); - } finally { - Binder.restoreCallingIdentity(ident); - } - } - } - - boolean bindWallpaperComponentLocked(ComponentName componentName, boolean force, - boolean fromUser, WallpaperData wallpaper, IRemoteCallback reply) { - if (DEBUG) Slog.v(TAG, "bindWallpaperComponentLocked: componentName=" + componentName); - // Has the component changed? - if (!force) { - if (wallpaper.connection != null) { - if (wallpaper.wallpaperComponent == null) { - if (componentName == null) { - if (DEBUG) Slog.v(TAG, "bindWallpaperComponentLocked: still using default"); - // Still using default wallpaper. - return true; - } - } else if (wallpaper.wallpaperComponent.equals(componentName)) { - // Changing to same wallpaper. - if (DEBUG) Slog.v(TAG, "same wallpaper"); - return true; - } - } - } - - try { - if (componentName == null) { - String defaultComponent = - mContext.getString(com.android.internal.R.string.default_wallpaper_component); - if (defaultComponent != null) { - // See if there is a default wallpaper component specified - componentName = ComponentName.unflattenFromString(defaultComponent); - if (DEBUG) Slog.v(TAG, "Use default component wallpaper:" + componentName); - } - if (componentName == null) { - // Fall back to static image wallpaper - componentName = IMAGE_WALLPAPER; - //clearWallpaperComponentLocked(); - //return; - if (DEBUG) Slog.v(TAG, "Using image wallpaper"); - } - } - int serviceUserId = wallpaper.userId; - ServiceInfo si = mIPackageManager.getServiceInfo(componentName, - PackageManager.GET_META_DATA | PackageManager.GET_PERMISSIONS, serviceUserId); - if (si == null) { - // The wallpaper component we're trying to use doesn't exist - Slog.w(TAG, "Attempted wallpaper " + componentName + " is unavailable"); - return false; - } - if (!android.Manifest.permission.BIND_WALLPAPER.equals(si.permission)) { - String msg = "Selected service does not require " - + android.Manifest.permission.BIND_WALLPAPER - + ": " + componentName; - if (fromUser) { - throw new SecurityException(msg); - } - Slog.w(TAG, msg); - return false; - } - - WallpaperInfo wi = null; - - Intent intent = new Intent(WallpaperService.SERVICE_INTERFACE); - if (componentName != null && !componentName.equals(IMAGE_WALLPAPER)) { - // Make sure the selected service is actually a wallpaper service. - List<ResolveInfo> ris = - mIPackageManager.queryIntentServices(intent, - intent.resolveTypeIfNeeded(mContext.getContentResolver()), - PackageManager.GET_META_DATA, serviceUserId); - for (int i=0; i<ris.size(); i++) { - ServiceInfo rsi = ris.get(i).serviceInfo; - if (rsi.name.equals(si.name) && - rsi.packageName.equals(si.packageName)) { - try { - wi = new WallpaperInfo(mContext, ris.get(i)); - } catch (XmlPullParserException e) { - if (fromUser) { - throw new IllegalArgumentException(e); - } - Slog.w(TAG, e); - return false; - } catch (IOException e) { - if (fromUser) { - throw new IllegalArgumentException(e); - } - Slog.w(TAG, e); - return false; - } - break; - } - } - if (wi == null) { - String msg = "Selected service is not a wallpaper: " - + componentName; - if (fromUser) { - throw new SecurityException(msg); - } - Slog.w(TAG, msg); - return false; - } - } - - // Bind the service! - if (DEBUG) Slog.v(TAG, "Binding to:" + componentName); - WallpaperConnection newConn = new WallpaperConnection(wi, wallpaper); - intent.setComponent(componentName); - intent.putExtra(Intent.EXTRA_CLIENT_LABEL, - com.android.internal.R.string.wallpaper_binding_label); - intent.putExtra(Intent.EXTRA_CLIENT_INTENT, PendingIntent.getActivityAsUser( - mContext, 0, - Intent.createChooser(new Intent(Intent.ACTION_SET_WALLPAPER), - mContext.getText(com.android.internal.R.string.chooser_wallpaper)), - 0, null, new UserHandle(serviceUserId))); - if (!mContext.bindServiceAsUser(intent, newConn, - Context.BIND_AUTO_CREATE | Context.BIND_SHOWING_UI, - new UserHandle(serviceUserId))) { - String msg = "Unable to bind service: " - + componentName; - if (fromUser) { - throw new IllegalArgumentException(msg); - } - Slog.w(TAG, msg); - return false; - } - if (wallpaper.userId == mCurrentUserId && mLastWallpaper != null) { - detachWallpaperLocked(mLastWallpaper); - } - wallpaper.wallpaperComponent = componentName; - wallpaper.connection = newConn; - wallpaper.lastDiedTime = SystemClock.uptimeMillis(); - newConn.mReply = reply; - try { - if (wallpaper.userId == mCurrentUserId) { - if (DEBUG) - Slog.v(TAG, "Adding window token: " + newConn.mToken); - mIWindowManager.addWindowToken(newConn.mToken, - WindowManager.LayoutParams.TYPE_WALLPAPER); - mLastWallpaper = wallpaper; - } - } catch (RemoteException e) { - } - } catch (RemoteException e) { - String msg = "Remote exception for " + componentName + "\n" + e; - if (fromUser) { - throw new IllegalArgumentException(msg); - } - Slog.w(TAG, msg); - return false; - } - return true; - } - - void detachWallpaperLocked(WallpaperData wallpaper) { - if (wallpaper.connection != null) { - if (wallpaper.connection.mReply != null) { - try { - wallpaper.connection.mReply.sendResult(null); - } catch (RemoteException e) { - } - wallpaper.connection.mReply = null; - } - if (wallpaper.connection.mEngine != null) { - try { - wallpaper.connection.mEngine.destroy(); - } catch (RemoteException e) { - } - } - mContext.unbindService(wallpaper.connection); - try { - if (DEBUG) - Slog.v(TAG, "Removing window token: " + wallpaper.connection.mToken); - mIWindowManager.removeWindowToken(wallpaper.connection.mToken); - } catch (RemoteException e) { - } - wallpaper.connection.mService = null; - wallpaper.connection.mEngine = null; - wallpaper.connection = null; - } - } - - void clearWallpaperComponentLocked(WallpaperData wallpaper) { - wallpaper.wallpaperComponent = null; - detachWallpaperLocked(wallpaper); - } - - void attachServiceLocked(WallpaperConnection conn, WallpaperData wallpaper) { - try { - conn.mService.attach(conn, conn.mToken, - WindowManager.LayoutParams.TYPE_WALLPAPER, false, - wallpaper.width, wallpaper.height); - } catch (RemoteException e) { - Slog.w(TAG, "Failed attaching wallpaper; clearing", e); - if (!wallpaper.wallpaperUpdating) { - bindWallpaperComponentLocked(null, false, false, wallpaper, null); - } - } - } - - private void notifyCallbacksLocked(WallpaperData wallpaper) { - final int n = wallpaper.callbacks.beginBroadcast(); - for (int i = 0; i < n; i++) { - try { - wallpaper.callbacks.getBroadcastItem(i).onWallpaperChanged(); - } catch (RemoteException e) { - - // The RemoteCallbackList will take care of removing - // the dead object for us. - } - } - wallpaper.callbacks.finishBroadcast(); - final Intent intent = new Intent(Intent.ACTION_WALLPAPER_CHANGED); - mContext.sendBroadcastAsUser(intent, new UserHandle(mCurrentUserId)); - } - - private void checkPermission(String permission) { - if (PackageManager.PERMISSION_GRANTED!= mContext.checkCallingOrSelfPermission(permission)) { - throw new SecurityException("Access denied to process: " + Binder.getCallingPid() - + ", must have permission " + permission); - } - } - - private static JournaledFile makeJournaledFile(int userId) { - final String base = new File(getWallpaperDir(userId), WALLPAPER_INFO).getAbsolutePath(); - return new JournaledFile(new File(base), new File(base + ".tmp")); - } - - private void saveSettingsLocked(WallpaperData wallpaper) { - JournaledFile journal = makeJournaledFile(wallpaper.userId); - FileOutputStream stream = null; - try { - stream = new FileOutputStream(journal.chooseForWrite(), false); - XmlSerializer out = new FastXmlSerializer(); - out.setOutput(stream, "utf-8"); - out.startDocument(null, true); - - out.startTag(null, "wp"); - out.attribute(null, "width", Integer.toString(wallpaper.width)); - out.attribute(null, "height", Integer.toString(wallpaper.height)); - out.attribute(null, "name", wallpaper.name); - if (wallpaper.wallpaperComponent != null - && !wallpaper.wallpaperComponent.equals(IMAGE_WALLPAPER)) { - out.attribute(null, "component", - wallpaper.wallpaperComponent.flattenToShortString()); - } - out.endTag(null, "wp"); - - out.endDocument(); - stream.close(); - journal.commit(); - } catch (IOException e) { - try { - if (stream != null) { - stream.close(); - } - } catch (IOException ex) { - // Ignore - } - journal.rollback(); - } - } - - private void migrateFromOld() { - File oldWallpaper = new File(WallpaperBackupHelper.WALLPAPER_IMAGE_KEY); - File oldInfo = new File(WallpaperBackupHelper.WALLPAPER_INFO_KEY); - if (oldWallpaper.exists()) { - File newWallpaper = new File(getWallpaperDir(0), WALLPAPER); - oldWallpaper.renameTo(newWallpaper); - } - if (oldInfo.exists()) { - File newInfo = new File(getWallpaperDir(0), WALLPAPER_INFO); - oldInfo.renameTo(newInfo); - } - } - - private void loadSettingsLocked(int userId) { - if (DEBUG) Slog.v(TAG, "loadSettingsLocked"); - - JournaledFile journal = makeJournaledFile(userId); - FileInputStream stream = null; - File file = journal.chooseForRead(); - if (!file.exists()) { - // This should only happen one time, when upgrading from a legacy system - migrateFromOld(); - } - WallpaperData wallpaper = mWallpaperMap.get(userId); - if (wallpaper == null) { - wallpaper = new WallpaperData(userId); - mWallpaperMap.put(userId, wallpaper); - } - boolean success = false; - try { - stream = new FileInputStream(file); - XmlPullParser parser = Xml.newPullParser(); - parser.setInput(stream, null); - - int type; - do { - type = parser.next(); - if (type == XmlPullParser.START_TAG) { - String tag = parser.getName(); - if ("wp".equals(tag)) { - wallpaper.width = Integer.parseInt(parser.getAttributeValue(null, "width")); - wallpaper.height = Integer.parseInt(parser - .getAttributeValue(null, "height")); - wallpaper.name = parser.getAttributeValue(null, "name"); - String comp = parser.getAttributeValue(null, "component"); - wallpaper.nextWallpaperComponent = comp != null - ? ComponentName.unflattenFromString(comp) - : null; - if (wallpaper.nextWallpaperComponent == null - || "android".equals(wallpaper.nextWallpaperComponent - .getPackageName())) { - wallpaper.nextWallpaperComponent = IMAGE_WALLPAPER; - } - - if (DEBUG) { - Slog.v(TAG, "mWidth:" + wallpaper.width); - Slog.v(TAG, "mHeight:" + wallpaper.height); - Slog.v(TAG, "mName:" + wallpaper.name); - Slog.v(TAG, "mNextWallpaperComponent:" - + wallpaper.nextWallpaperComponent); - } - } - } - } while (type != XmlPullParser.END_DOCUMENT); - success = true; - } catch (FileNotFoundException e) { - Slog.w(TAG, "no current wallpaper -- first boot?"); - } catch (NullPointerException e) { - Slog.w(TAG, "failed parsing " + file + " " + e); - } catch (NumberFormatException e) { - Slog.w(TAG, "failed parsing " + file + " " + e); - } catch (XmlPullParserException e) { - Slog.w(TAG, "failed parsing " + file + " " + e); - } catch (IOException e) { - Slog.w(TAG, "failed parsing " + file + " " + e); - } catch (IndexOutOfBoundsException e) { - Slog.w(TAG, "failed parsing " + file + " " + e); - } - try { - if (stream != null) { - stream.close(); - } - } catch (IOException e) { - // Ignore - } - - if (!success) { - wallpaper.width = -1; - wallpaper.height = -1; - wallpaper.name = ""; - } - - // We always want to have some reasonable width hint. - int baseSize = getMaximumSizeDimension(); - if (wallpaper.width < baseSize) { - wallpaper.width = baseSize; - } - if (wallpaper.height < baseSize) { - wallpaper.height = baseSize; - } - } - - private int getMaximumSizeDimension() { - WindowManager wm = (WindowManager)mContext.getSystemService(Context.WINDOW_SERVICE); - Display d = wm.getDefaultDisplay(); - return d.getMaximumSizeDimension(); - } - - // Called by SystemBackupAgent after files are restored to disk. - void settingsRestored() { - // 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(0); - wallpaper = mWallpaperMap.get(0); - if (wallpaper.nextWallpaperComponent != null - && !wallpaper.nextWallpaperComponent.equals(IMAGE_WALLPAPER)) { - if (!bindWallpaperComponentLocked(wallpaper.nextWallpaperComponent, false, false, - wallpaper, null)) { - // No such live wallpaper or other failure; fall back to the default - // live wallpaper (since the profile being restored indicated that the - // user had selected a live rather than static one). - bindWallpaperComponentLocked(null, false, false, wallpaper, null); - } - success = true; - } else { - // If there's a wallpaper name, we use that. If that can't be loaded, then we - // use the default. - if ("".equals(wallpaper.name)) { - if (DEBUG) Slog.v(TAG, "settingsRestored: name is empty"); - success = true; - } else { - if (DEBUG) Slog.v(TAG, "settingsRestored: attempting to restore named resource"); - success = restoreNamedResourceLocked(wallpaper); - } - if (DEBUG) Slog.v(TAG, "settingsRestored: success=" + success); - if (success) { - bindWallpaperComponentLocked(wallpaper.nextWallpaperComponent, false, false, - wallpaper, null); - } - } - } - - if (!success) { - Slog.e(TAG, "Failed to restore wallpaper: '" + wallpaper.name + "'"); - wallpaper.name = ""; - getWallpaperDir(0).delete(); - } - - synchronized (mLock) { - saveSettingsLocked(wallpaper); - } - } - - boolean restoreNamedResourceLocked(WallpaperData wallpaper) { - if (wallpaper.name.length() > 4 && "res:".equals(wallpaper.name.substring(0, 4))) { - String resName = wallpaper.name.substring(4); - - String pkg = null; - int colon = resName.indexOf(':'); - if (colon > 0) { - pkg = resName.substring(0, colon); - } - - String ident = null; - int slash = resName.lastIndexOf('/'); - if (slash > 0) { - ident = resName.substring(slash+1); - } - - String type = null; - if (colon > 0 && slash > 0 && (slash-colon) > 1) { - type = resName.substring(colon+1, slash); - } - - if (pkg != null && ident != null && type != null) { - int resId = -1; - InputStream res = null; - FileOutputStream fos = null; - try { - Context c = mContext.createPackageContext(pkg, Context.CONTEXT_RESTRICTED); - Resources r = c.getResources(); - resId = r.getIdentifier(resName, null, null); - if (resId == 0) { - Slog.e(TAG, "couldn't resolve identifier pkg=" + pkg + " type=" + type - + " ident=" + ident); - return false; - } - - res = r.openRawResource(resId); - if (wallpaper.wallpaperFile.exists()) { - wallpaper.wallpaperFile.delete(); - } - fos = new FileOutputStream(wallpaper.wallpaperFile); - - byte[] buffer = new byte[32768]; - int amt; - while ((amt=res.read(buffer)) > 0) { - fos.write(buffer, 0, amt); - } - // mWallpaperObserver will notice the close and send the change broadcast - - Slog.v(TAG, "Restored wallpaper: " + resName); - return true; - } catch (NameNotFoundException e) { - Slog.e(TAG, "Package name " + pkg + " not found"); - } catch (Resources.NotFoundException e) { - Slog.e(TAG, "Resource not found: " + resId); - } catch (IOException e) { - Slog.e(TAG, "IOException while restoring wallpaper ", e); - } finally { - if (res != null) { - try { - res.close(); - } catch (IOException ex) {} - } - if (fos != null) { - FileUtils.sync(fos); - try { - fos.close(); - } catch (IOException ex) {} - } - } - } - } - return false; - } - - @Override - protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { - if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) - != PackageManager.PERMISSION_GRANTED) { - - pw.println("Permission Denial: can't dump wallpaper service from from pid=" - + Binder.getCallingPid() - + ", uid=" + Binder.getCallingUid()); - return; - } - - synchronized (mLock) { - pw.println("Current Wallpaper Service state:"); - for (int i = 0; i < mWallpaperMap.size(); i++) { - WallpaperData wallpaper = mWallpaperMap.valueAt(i); - pw.println(" User " + wallpaper.userId + ":"); - pw.print(" mWidth="); - pw.print(wallpaper.width); - pw.print(" mHeight="); - pw.println(wallpaper.height); - pw.print(" mName="); - pw.println(wallpaper.name); - pw.print(" mWallpaperComponent="); - pw.println(wallpaper.wallpaperComponent); - if (wallpaper.connection != null) { - WallpaperConnection conn = wallpaper.connection; - pw.print(" Wallpaper connection "); - pw.print(conn); - pw.println(":"); - if (conn.mInfo != null) { - pw.print(" mInfo.component="); - pw.println(conn.mInfo.getComponent()); - } - pw.print(" mToken="); - pw.println(conn.mToken); - pw.print(" mService="); - pw.println(conn.mService); - pw.print(" mEngine="); - pw.println(conn.mEngine); - pw.print(" mLastDiedTime="); - pw.println(wallpaper.lastDiedTime - SystemClock.uptimeMillis()); - } - } - } - } -} |