| /* |
| * Copyright (C) 2018 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 android.annotation.RequiresPermission; |
| import android.app.ActivityThread; |
| import android.app.WallpaperInfo; |
| import android.app.WallpaperManager; |
| import android.content.BroadcastReceiver; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.graphics.Bitmap; |
| import android.os.AsyncTask; |
| import android.os.ParcelFileDescriptor; |
| import android.util.Slog; |
| |
| /** |
| * Receiver responsible for updating the wallpaper when the device |
| * configuration has changed. |
| * |
| * @hide |
| */ |
| public class WallpaperUpdateReceiver extends BroadcastReceiver { |
| |
| private static final String TAG = "WallpaperUpdateReceiver"; |
| private static final boolean DEBUG = false; |
| |
| @Override |
| public void onReceive(final Context context, final Intent intent) { |
| if (DEBUG) Slog.d(TAG, "onReceive: " + intent); |
| |
| if (intent != null && Intent.ACTION_DEVICE_CUSTOMIZATION_READY.equals(intent.getAction())) { |
| AsyncTask.execute(this::updateWallpaper); |
| } |
| } |
| |
| private void updateWallpaper() { |
| try { |
| ActivityThread currentActivityThread = ActivityThread.currentActivityThread(); |
| Context uiContext = currentActivityThread.getSystemUiContext(); |
| WallpaperManager wallpaperManager = WallpaperManager.getInstance(uiContext); |
| if (isUserSetWallpaper(wallpaperManager, uiContext)) { |
| Slog.i(TAG, "User has set wallpaper, skip to resetting"); |
| return; |
| } |
| if (DEBUG) Slog.d(TAG, "Set customized default_wallpaper."); |
| Bitmap blank = Bitmap.createBitmap(1, 1, Bitmap.Config.ALPHA_8); |
| // set a blank wallpaper to force a redraw of default_wallpaper |
| wallpaperManager.setBitmap(blank); |
| wallpaperManager.setResource(com.android.internal.R.drawable.default_wallpaper); |
| } catch (Exception e) { |
| Slog.w(TAG, "Failed to customize system wallpaper." + e); |
| } |
| } |
| |
| /** |
| * A function to validate if users have set customized (live)wallpaper |
| * <p> |
| * return true if users have customized their wallpaper |
| **/ |
| @RequiresPermission(android.Manifest.permission.READ_WALLPAPER_INTERNAL) |
| private boolean isUserSetWallpaper(WallpaperManager wm, Context context) { |
| WallpaperInfo info = wm.getWallpaperInfo(); |
| if (info == null) { |
| //Image Wallpaper |
| ParcelFileDescriptor sysWallpaper = |
| wm.getWallpaperFile(WallpaperManager.FLAG_SYSTEM); |
| ParcelFileDescriptor lockWallpaper = |
| wm.getWallpaperFile(WallpaperManager.FLAG_LOCK); |
| if (sysWallpaper != null || lockWallpaper != null) { |
| return true; |
| } |
| } else { |
| //live wallpaper |
| ComponentName currCN = info.getComponent(); |
| ComponentName defaultCN = WallpaperManager.getDefaultWallpaperComponent(context); |
| if (!currCN.equals(defaultCN)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| } |