885 lines
34 KiB
Java
885 lines
34 KiB
Java
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/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.server;
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import static android.os.FileObserver.*;
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import static android.os.ParcelFileDescriptor.*;
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import android.app.IWallpaperManager;
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import android.app.IWallpaperManagerCallback;
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import android.app.PendingIntent;
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import android.app.WallpaperInfo;
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import android.app.backup.BackupManager;
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import android.content.ComponentName;
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import android.content.Context;
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import android.content.Intent;
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import android.content.ServiceConnection;
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import android.content.pm.PackageManager;
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import android.content.pm.ResolveInfo;
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import android.content.pm.ServiceInfo;
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import android.content.pm.PackageManager.NameNotFoundException;
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import android.content.res.Resources;
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import android.os.Binder;
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import android.os.Bundle;
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import android.os.FileUtils;
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import android.os.IBinder;
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import android.os.RemoteException;
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import android.os.FileObserver;
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import android.os.ParcelFileDescriptor;
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import android.os.RemoteCallbackList;
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import android.os.ServiceManager;
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import android.os.SystemClock;
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import android.service.wallpaper.IWallpaperConnection;
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import android.service.wallpaper.IWallpaperEngine;
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import android.service.wallpaper.IWallpaperService;
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import android.service.wallpaper.WallpaperService;
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import android.util.Slog;
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import android.util.Xml;
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import android.view.IWindowManager;
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import android.view.WindowManager;
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import java.io.FileDescriptor;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.File;
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import java.io.FileNotFoundException;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.io.PrintWriter;
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import java.util.List;
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import org.xmlpull.v1.XmlPullParser;
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import org.xmlpull.v1.XmlPullParserException;
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import org.xmlpull.v1.XmlSerializer;
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import com.android.internal.content.PackageMonitor;
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import com.android.internal.service.wallpaper.ImageWallpaper;
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import com.android.internal.util.FastXmlSerializer;
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import com.android.internal.util.JournaledFile;
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import com.android.server.DevicePolicyManagerService.ActiveAdmin;
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import com.android.server.DevicePolicyManagerService.MyPackageMonitor;
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class WallpaperManagerService extends IWallpaperManager.Stub {
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static final String TAG = "WallpaperService";
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static final boolean DEBUG = false;
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Object mLock = new Object();
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/**
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* Minimum time between crashes of a wallpaper service for us to consider
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* restarting it vs. just reverting to the static wallpaper.
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*/
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static final long MIN_WALLPAPER_CRASH_TIME = 10000;
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static final File WALLPAPER_DIR = new File(
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"/data/data/com.android.settings/files");
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static final String WALLPAPER = "wallpaper";
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static final File WALLPAPER_FILE = new File(WALLPAPER_DIR, WALLPAPER);
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/**
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* List of callbacks registered they should each be notified
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* when the wallpaper is changed.
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*/
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private final RemoteCallbackList<IWallpaperManagerCallback> mCallbacks
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= new RemoteCallbackList<IWallpaperManagerCallback>();
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/**
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* Observes the wallpaper for changes and notifies all IWallpaperServiceCallbacks
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* that the wallpaper has changed. The CREATE is triggered when there is no
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* wallpaper set and is created for the first time. The CLOSE_WRITE is triggered
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* everytime the wallpaper is changed.
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*/
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private final FileObserver mWallpaperObserver = new FileObserver(
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WALLPAPER_DIR.getAbsolutePath(), CREATE | CLOSE_WRITE | DELETE | DELETE_SELF) {
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@Override
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public void onEvent(int event, String path) {
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if (path == null) {
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return;
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}
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synchronized (mLock) {
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// changing the wallpaper means we'll need to back up the new one
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long origId = Binder.clearCallingIdentity();
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BackupManager bm = new BackupManager(mContext);
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bm.dataChanged();
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Binder.restoreCallingIdentity(origId);
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File changedFile = new File(WALLPAPER_DIR, path);
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if (WALLPAPER_FILE.equals(changedFile)) {
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notifyCallbacksLocked();
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}
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}
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}
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};
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final Context mContext;
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final IWindowManager mIWindowManager;
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final MyPackageMonitor mMonitor;
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int mWidth = -1;
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int mHeight = -1;
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/**
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* Resource name if using a picture from the wallpaper gallery
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*/
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String mName = "";
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/**
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* The component name of the currently set live wallpaper.
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*/
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ComponentName mWallpaperComponent;
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/**
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* The component name of the wallpaper that should be set next.
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*/
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ComponentName mNextWallpaperComponent;
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/**
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* Name of the component used to display bitmap wallpapers from either the gallery or
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* built-in wallpapers.
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*/
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ComponentName mImageWallpaperComponent = new ComponentName("android",
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ImageWallpaper.class.getName());
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WallpaperConnection mWallpaperConnection;
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long mLastDiedTime;
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boolean mWallpaperUpdating;
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class WallpaperConnection extends IWallpaperConnection.Stub
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implements ServiceConnection {
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final WallpaperInfo mInfo;
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final Binder mToken = new Binder();
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IWallpaperService mService;
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IWallpaperEngine mEngine;
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public WallpaperConnection(WallpaperInfo info) {
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mInfo = info;
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}
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public void onServiceConnected(ComponentName name, IBinder service) {
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synchronized (mLock) {
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if (mWallpaperConnection == this) {
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mLastDiedTime = SystemClock.uptimeMillis();
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mService = IWallpaperService.Stub.asInterface(service);
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attachServiceLocked(this);
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// XXX should probably do saveSettingsLocked() later
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// when we have an engine, but I'm not sure about
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// locking there and anyway we always need to be able to
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// recover if there is something wrong.
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saveSettingsLocked();
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}
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}
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}
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public void onServiceDisconnected(ComponentName name) {
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synchronized (mLock) {
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mService = null;
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mEngine = null;
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if (mWallpaperConnection == this) {
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Slog.w(TAG, "Wallpaper service gone: " + mWallpaperComponent);
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if (!mWallpaperUpdating && (mLastDiedTime+MIN_WALLPAPER_CRASH_TIME)
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> SystemClock.uptimeMillis()) {
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Slog.w(TAG, "Reverting to built-in wallpaper!");
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bindWallpaperComponentLocked(null);
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}
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}
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}
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}
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public void attachEngine(IWallpaperEngine engine) {
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mEngine = engine;
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}
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public ParcelFileDescriptor setWallpaper(String name) {
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synchronized (mLock) {
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if (mWallpaperConnection == this) {
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return updateWallpaperBitmapLocked(name);
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}
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return null;
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}
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}
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}
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class MyPackageMonitor extends PackageMonitor {
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@Override
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public void onPackageUpdateFinished(String packageName, int uid) {
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synchronized (mLock) {
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if (mWallpaperComponent != null &&
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mWallpaperComponent.getPackageName().equals(packageName)) {
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mWallpaperUpdating = false;
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ComponentName comp = mWallpaperComponent;
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clearWallpaperComponentLocked();
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bindWallpaperComponentLocked(comp);
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}
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}
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}
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@Override
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public void onPackageUpdateStarted(String packageName, int uid) {
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synchronized (mLock) {
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if (mWallpaperComponent != null &&
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mWallpaperComponent.getPackageName().equals(packageName)) {
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mWallpaperUpdating = true;
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}
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}
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}
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@Override
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public boolean onHandleForceStop(Intent intent, String[] packages, int uid, boolean doit) {
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return doPackagesChanged(doit);
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}
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@Override
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public void onSomePackagesChanged() {
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doPackagesChanged(true);
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}
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boolean doPackagesChanged(boolean doit) {
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boolean changed = false;
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synchronized (mLock) {
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if (mWallpaperComponent != null) {
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int change = isPackageDisappearing(mWallpaperComponent.getPackageName());
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if (change == PACKAGE_PERMANENT_CHANGE
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|| change == PACKAGE_TEMPORARY_CHANGE) {
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changed = true;
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if (doit) {
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Slog.w(TAG, "Wallpaper uninstalled, removing: " + mWallpaperComponent);
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clearWallpaperLocked();
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}
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}
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}
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if (mNextWallpaperComponent != null) {
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int change = isPackageDisappearing(mNextWallpaperComponent.getPackageName());
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if (change == PACKAGE_PERMANENT_CHANGE
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|| change == PACKAGE_TEMPORARY_CHANGE) {
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mNextWallpaperComponent = null;
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}
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}
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if (mWallpaperComponent != null
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&& isPackageModified(mWallpaperComponent.getPackageName())) {
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try {
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mContext.getPackageManager().getServiceInfo(
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mWallpaperComponent, 0);
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} catch (NameNotFoundException e) {
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Slog.w(TAG, "Wallpaper component gone, removing: " + mWallpaperComponent);
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clearWallpaperLocked();
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}
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}
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if (mNextWallpaperComponent != null
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&& isPackageModified(mNextWallpaperComponent.getPackageName())) {
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try {
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mContext.getPackageManager().getServiceInfo(
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mNextWallpaperComponent, 0);
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} catch (NameNotFoundException e) {
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mNextWallpaperComponent = null;
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}
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}
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}
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return changed;
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}
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}
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public WallpaperManagerService(Context context) {
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if (DEBUG) Slog.v(TAG, "WallpaperService startup");
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mContext = context;
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mIWindowManager = IWindowManager.Stub.asInterface(
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ServiceManager.getService(Context.WINDOW_SERVICE));
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mMonitor = new MyPackageMonitor();
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mMonitor.register(context, true);
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WALLPAPER_DIR.mkdirs();
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loadSettingsLocked();
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mWallpaperObserver.startWatching();
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}
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@Override
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protected void finalize() throws Throwable {
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super.finalize();
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mWallpaperObserver.stopWatching();
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}
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public void systemReady() {
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if (DEBUG) Slog.v(TAG, "systemReady");
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synchronized (mLock) {
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try {
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bindWallpaperComponentLocked(mNextWallpaperComponent);
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} catch (RuntimeException e) {
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Slog.w(TAG, "Failure starting previous wallpaper", e);
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try {
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bindWallpaperComponentLocked(null);
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} catch (RuntimeException e2) {
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Slog.w(TAG, "Failure starting default wallpaper", e2);
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clearWallpaperComponentLocked();
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}
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}
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}
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}
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public void clearWallpaper() {
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if (DEBUG) Slog.v(TAG, "clearWallpaper");
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synchronized (mLock) {
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clearWallpaperLocked();
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}
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}
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public void clearWallpaperLocked() {
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File f = WALLPAPER_FILE;
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if (f.exists()) {
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f.delete();
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}
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final long ident = Binder.clearCallingIdentity();
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try {
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bindWallpaperComponentLocked(null);
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} catch (IllegalArgumentException e) {
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// This can happen if the default wallpaper component doesn't
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// exist. This should be a system configuration problem, but
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// let's not let it crash the system and just live with no
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// wallpaper.
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Slog.e(TAG, "Default wallpaper component not found!", e);
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} finally {
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Binder.restoreCallingIdentity(ident);
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}
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}
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public void setDimensionHints(int width, int height) throws RemoteException {
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checkPermission(android.Manifest.permission.SET_WALLPAPER_HINTS);
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if (width <= 0 || height <= 0) {
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throw new IllegalArgumentException("width and height must be > 0");
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}
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synchronized (mLock) {
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if (width != mWidth || height != mHeight) {
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mWidth = width;
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mHeight = height;
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saveSettingsLocked();
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if (mWallpaperConnection != null) {
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if (mWallpaperConnection.mEngine != null) {
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try {
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mWallpaperConnection.mEngine.setDesiredSize(
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width, height);
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} catch (RemoteException e) {
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}
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notifyCallbacksLocked();
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}
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}
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}
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}
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}
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public int getWidthHint() throws RemoteException {
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synchronized (mLock) {
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return mWidth;
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}
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}
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public int getHeightHint() throws RemoteException {
|
||
|
|
synchronized (mLock) {
|
||
|
|
return mHeight;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
public ParcelFileDescriptor getWallpaper(IWallpaperManagerCallback cb,
|
||
|
|
Bundle outParams) {
|
||
|
|
synchronized (mLock) {
|
||
|
|
try {
|
||
|
|
if (outParams != null) {
|
||
|
|
outParams.putInt("width", mWidth);
|
||
|
|
outParams.putInt("height", mHeight);
|
||
|
|
}
|
||
|
|
mCallbacks.register(cb);
|
||
|
|
File f = WALLPAPER_FILE;
|
||
|
|
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() {
|
||
|
|
synchronized (mLock) {
|
||
|
|
if (mWallpaperConnection != null) {
|
||
|
|
return mWallpaperConnection.mInfo;
|
||
|
|
}
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
public ParcelFileDescriptor setWallpaper(String name) {
|
||
|
|
if (DEBUG) Slog.v(TAG, "setWallpaper");
|
||
|
|
|
||
|
|
checkPermission(android.Manifest.permission.SET_WALLPAPER);
|
||
|
|
synchronized (mLock) {
|
||
|
|
final long ident = Binder.clearCallingIdentity();
|
||
|
|
try {
|
||
|
|
ParcelFileDescriptor pfd = updateWallpaperBitmapLocked(name);
|
||
|
|
if (pfd != null) {
|
||
|
|
// Bind the wallpaper to an ImageWallpaper
|
||
|
|
bindWallpaperComponentLocked(mImageWallpaperComponent);
|
||
|
|
saveSettingsLocked();
|
||
|
|
}
|
||
|
|
return pfd;
|
||
|
|
} finally {
|
||
|
|
Binder.restoreCallingIdentity(ident);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
ParcelFileDescriptor updateWallpaperBitmapLocked(String name) {
|
||
|
|
if (name == null) name = "";
|
||
|
|
try {
|
||
|
|
ParcelFileDescriptor fd = ParcelFileDescriptor.open(WALLPAPER_FILE,
|
||
|
|
MODE_CREATE|MODE_READ_WRITE);
|
||
|
|
mName = name;
|
||
|
|
return fd;
|
||
|
|
} catch (FileNotFoundException e) {
|
||
|
|
Slog.w(TAG, "Error setting wallpaper", e);
|
||
|
|
}
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
public void setWallpaperComponent(ComponentName name) {
|
||
|
|
if (DEBUG) Slog.v(TAG, "setWallpaperComponent name=" + name);
|
||
|
|
checkPermission(android.Manifest.permission.SET_WALLPAPER_COMPONENT);
|
||
|
|
synchronized (mLock) {
|
||
|
|
final long ident = Binder.clearCallingIdentity();
|
||
|
|
try {
|
||
|
|
bindWallpaperComponentLocked(name);
|
||
|
|
} finally {
|
||
|
|
Binder.restoreCallingIdentity(ident);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void bindWallpaperComponentLocked(ComponentName componentName) {
|
||
|
|
if (DEBUG) Slog.v(TAG, "bindWallpaperComponentLocked: componentName=" + componentName);
|
||
|
|
|
||
|
|
// Has the component changed?
|
||
|
|
if (mWallpaperConnection != null) {
|
||
|
|
if (mWallpaperComponent == null) {
|
||
|
|
if (componentName == null) {
|
||
|
|
if (DEBUG) Slog.v(TAG, "bindWallpaperComponentLocked: still using default");
|
||
|
|
// Still using default wallpaper.
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
} else if (mWallpaperComponent.equals(componentName)) {
|
||
|
|
// Changing to same wallpaper.
|
||
|
|
if (DEBUG) Slog.v(TAG, "same wallpaper");
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
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 = mImageWallpaperComponent;
|
||
|
|
//clearWallpaperComponentLocked();
|
||
|
|
//return;
|
||
|
|
if (DEBUG) Slog.v(TAG, "Using image wallpaper");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
ServiceInfo si = mContext.getPackageManager().getServiceInfo(componentName,
|
||
|
|
PackageManager.GET_META_DATA | PackageManager.GET_PERMISSIONS);
|
||
|
|
if (!android.Manifest.permission.BIND_WALLPAPER.equals(si.permission)) {
|
||
|
|
throw new SecurityException("Selected service does not require "
|
||
|
|
+ android.Manifest.permission.BIND_WALLPAPER
|
||
|
|
+ ": " + componentName);
|
||
|
|
}
|
||
|
|
|
||
|
|
WallpaperInfo wi = null;
|
||
|
|
|
||
|
|
Intent intent = new Intent(WallpaperService.SERVICE_INTERFACE);
|
||
|
|
if (componentName != null && !componentName.equals(mImageWallpaperComponent)) {
|
||
|
|
// Make sure the selected service is actually a wallpaper service.
|
||
|
|
List<ResolveInfo> ris = mContext.getPackageManager()
|
||
|
|
.queryIntentServices(intent, PackageManager.GET_META_DATA);
|
||
|
|
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) {
|
||
|
|
throw new IllegalArgumentException(e);
|
||
|
|
} catch (IOException e) {
|
||
|
|
throw new IllegalArgumentException(e);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (wi == null) {
|
||
|
|
throw new SecurityException("Selected service is not a wallpaper: "
|
||
|
|
+ componentName);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Bind the service!
|
||
|
|
if (DEBUG) Slog.v(TAG, "Binding to:" + componentName);
|
||
|
|
WallpaperConnection newConn = new WallpaperConnection(wi);
|
||
|
|
intent.setComponent(componentName);
|
||
|
|
intent.putExtra(Intent.EXTRA_CLIENT_LABEL,
|
||
|
|
com.android.internal.R.string.wallpaper_binding_label);
|
||
|
|
intent.putExtra(Intent.EXTRA_CLIENT_INTENT, PendingIntent.getActivity(
|
||
|
|
mContext, 0,
|
||
|
|
Intent.createChooser(new Intent(Intent.ACTION_SET_WALLPAPER),
|
||
|
|
mContext.getText(com.android.internal.R.string.chooser_wallpaper)),
|
||
|
|
0));
|
||
|
|
if (!mContext.bindService(intent, newConn,
|
||
|
|
Context.BIND_AUTO_CREATE)) {
|
||
|
|
throw new IllegalArgumentException("Unable to bind service: "
|
||
|
|
+ componentName);
|
||
|
|
}
|
||
|
|
|
||
|
|
clearWallpaperComponentLocked();
|
||
|
|
mWallpaperComponent = componentName;
|
||
|
|
mWallpaperConnection = newConn;
|
||
|
|
mLastDiedTime = SystemClock.uptimeMillis();
|
||
|
|
try {
|
||
|
|
if (DEBUG) Slog.v(TAG, "Adding window token: " + newConn.mToken);
|
||
|
|
mIWindowManager.addWindowToken(newConn.mToken,
|
||
|
|
WindowManager.LayoutParams.TYPE_WALLPAPER);
|
||
|
|
} catch (RemoteException e) {
|
||
|
|
}
|
||
|
|
|
||
|
|
} catch (PackageManager.NameNotFoundException e) {
|
||
|
|
throw new IllegalArgumentException("Unknown component " + componentName);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void clearWallpaperComponentLocked() {
|
||
|
|
mWallpaperComponent = null;
|
||
|
|
if (mWallpaperConnection != null) {
|
||
|
|
if (mWallpaperConnection.mEngine != null) {
|
||
|
|
try {
|
||
|
|
mWallpaperConnection.mEngine.destroy();
|
||
|
|
} catch (RemoteException e) {
|
||
|
|
}
|
||
|
|
}
|
||
|
|
mContext.unbindService(mWallpaperConnection);
|
||
|
|
try {
|
||
|
|
if (DEBUG) Slog.v(TAG, "Removing window token: "
|
||
|
|
+ mWallpaperConnection.mToken);
|
||
|
|
mIWindowManager.removeWindowToken(mWallpaperConnection.mToken);
|
||
|
|
} catch (RemoteException e) {
|
||
|
|
}
|
||
|
|
mWallpaperConnection.mService = null;
|
||
|
|
mWallpaperConnection.mEngine = null;
|
||
|
|
mWallpaperConnection = null;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void attachServiceLocked(WallpaperConnection conn) {
|
||
|
|
try {
|
||
|
|
conn.mService.attach(conn, conn.mToken,
|
||
|
|
WindowManager.LayoutParams.TYPE_WALLPAPER, false,
|
||
|
|
mWidth, mHeight);
|
||
|
|
} catch (RemoteException e) {
|
||
|
|
Slog.w(TAG, "Failed attaching wallpaper; clearing", e);
|
||
|
|
if (!mWallpaperUpdating) {
|
||
|
|
bindWallpaperComponentLocked(null);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
private void notifyCallbacksLocked() {
|
||
|
|
final int n = mCallbacks.beginBroadcast();
|
||
|
|
for (int i = 0; i < n; i++) {
|
||
|
|
try {
|
||
|
|
mCallbacks.getBroadcastItem(i).onWallpaperChanged();
|
||
|
|
} catch (RemoteException e) {
|
||
|
|
|
||
|
|
// The RemoteCallbackList will take care of removing
|
||
|
|
// the dead object for us.
|
||
|
|
}
|
||
|
|
}
|
||
|
|
mCallbacks.finishBroadcast();
|
||
|
|
final Intent intent = new Intent(Intent.ACTION_WALLPAPER_CHANGED);
|
||
|
|
mContext.sendBroadcast(intent);
|
||
|
|
}
|
||
|
|
|
||
|
|
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() {
|
||
|
|
final String base = "/data/system/wallpaper_info.xml";
|
||
|
|
return new JournaledFile(new File(base), new File(base + ".tmp"));
|
||
|
|
}
|
||
|
|
|
||
|
|
private void saveSettingsLocked() {
|
||
|
|
JournaledFile journal = makeJournaledFile();
|
||
|
|
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(mWidth));
|
||
|
|
out.attribute(null, "height", Integer.toString(mHeight));
|
||
|
|
out.attribute(null, "name", mName);
|
||
|
|
if (mWallpaperComponent != null) {
|
||
|
|
out.attribute(null, "component",
|
||
|
|
mWallpaperComponent.flattenToShortString());
|
||
|
|
}
|
||
|
|
out.endTag(null, "wp");
|
||
|
|
|
||
|
|
out.endDocument();
|
||
|
|
stream.getFD().sync();
|
||
|
|
stream.close();
|
||
|
|
journal.commit();
|
||
|
|
} catch (IOException e) {
|
||
|
|
try {
|
||
|
|
if (stream != null) {
|
||
|
|
stream.close();
|
||
|
|
}
|
||
|
|
} catch (IOException ex) {
|
||
|
|
// Ignore
|
||
|
|
}
|
||
|
|
journal.rollback();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
private void loadSettingsLocked() {
|
||
|
|
if (DEBUG) Slog.v(TAG, "loadSettingsLocked");
|
||
|
|
|
||
|
|
JournaledFile journal = makeJournaledFile();
|
||
|
|
FileInputStream stream = null;
|
||
|
|
File file = journal.chooseForRead();
|
||
|
|
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)) {
|
||
|
|
mWidth = Integer.parseInt(parser.getAttributeValue(null, "width"));
|
||
|
|
mHeight = Integer.parseInt(parser.getAttributeValue(null, "height"));
|
||
|
|
mName = parser.getAttributeValue(null, "name");
|
||
|
|
String comp = parser.getAttributeValue(null, "component");
|
||
|
|
mNextWallpaperComponent = comp != null
|
||
|
|
? ComponentName.unflattenFromString(comp)
|
||
|
|
: null;
|
||
|
|
|
||
|
|
if (DEBUG) {
|
||
|
|
Slog.v(TAG, "mWidth:" + mWidth);
|
||
|
|
Slog.v(TAG, "mHeight:" + mHeight);
|
||
|
|
Slog.v(TAG, "mName:" + mName);
|
||
|
|
Slog.v(TAG, "mNextWallpaperComponent:" + mNextWallpaperComponent);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} while (type != XmlPullParser.END_DOCUMENT);
|
||
|
|
success = true;
|
||
|
|
} 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) {
|
||
|
|
mWidth = -1;
|
||
|
|
mHeight = -1;
|
||
|
|
mName = "";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Called by SystemBackupAgent after files are restored to disk.
|
||
|
|
void settingsRestored() {
|
||
|
|
if (DEBUG) Slog.v(TAG, "settingsRestored");
|
||
|
|
|
||
|
|
boolean success = false;
|
||
|
|
synchronized (mLock) {
|
||
|
|
loadSettingsLocked();
|
||
|
|
if (mNextWallpaperComponent != null &&
|
||
|
|
!mNextWallpaperComponent.equals(mImageWallpaperComponent)) {
|
||
|
|
try {
|
||
|
|
bindWallpaperComponentLocked(mNextWallpaperComponent);
|
||
|
|
} catch (IllegalArgumentException e) {
|
||
|
|
// 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);
|
||
|
|
}
|
||
|
|
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(mName)) {
|
||
|
|
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();
|
||
|
|
}
|
||
|
|
if (DEBUG) Slog.v(TAG, "settingsRestored: success=" + success);
|
||
|
|
if (success) {
|
||
|
|
bindWallpaperComponentLocked(mImageWallpaperComponent);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!success) {
|
||
|
|
Slog.e(TAG, "Failed to restore wallpaper: '" + mName + "'");
|
||
|
|
mName = "";
|
||
|
|
WALLPAPER_FILE.delete();
|
||
|
|
}
|
||
|
|
|
||
|
|
synchronized (mLock) {
|
||
|
|
saveSettingsLocked();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
boolean restoreNamedResourceLocked() {
|
||
|
|
if (mName.length() > 4 && "res:".equals(mName.substring(0, 4))) {
|
||
|
|
String resName = mName.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_FILE.exists()) {
|
||
|
|
WALLPAPER_FILE.delete();
|
||
|
|
}
|
||
|
|
fos = new FileOutputStream(WALLPAPER_FILE);
|
||
|
|
|
||
|
|
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:");
|
||
|
|
pw.print(" mWidth="); pw.print(mWidth);
|
||
|
|
pw.print(" mHeight="); pw.println(mHeight);
|
||
|
|
pw.print(" mName="); pw.println(mName);
|
||
|
|
pw.print(" mWallpaperComponent="); pw.println(mWallpaperComponent);
|
||
|
|
if (mWallpaperConnection != null) {
|
||
|
|
WallpaperConnection conn = mWallpaperConnection;
|
||
|
|
pw.print(" Wallpaper connection ");
|
||
|
|
pw.print(conn); pw.println(":");
|
||
|
|
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(mLastDiedTime - SystemClock.uptimeMillis());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|