1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.wallpaper.module; 17 18 import android.content.Context; 19 import android.content.Intent; 20 import android.content.pm.ApplicationInfo; 21 import android.content.pm.PackageManager; 22 import android.content.pm.PackageManager.NameNotFoundException; 23 import android.content.pm.ResolveInfo; 24 import android.content.res.Resources; 25 import android.util.Log; 26 import android.util.Pair; 27 28 import java.io.File; 29 30 31 /** 32 * Provides content from the partner customization apk on the device (if there is one). 33 */ 34 public class DefaultPartnerProvider implements PartnerProvider { 35 36 private final String mPackageName; 37 private final Resources mResources; 38 DefaultPartnerProvider(Context ctx)39 public DefaultPartnerProvider(Context ctx) { 40 Pair<String, Resources> apkInfo = findSystemApk(ctx.getPackageManager()); 41 if (apkInfo != null) { 42 mPackageName = apkInfo.first; 43 mResources = apkInfo.second; 44 } else { 45 mPackageName = null; 46 mResources = null; 47 } 48 } 49 50 /** 51 * Finds the partner customization APK in the system directory. 52 * 53 * @param pm 54 * @return Pair of the package name and the Resources for the APK, or null if the APK isn't found 55 * on the device. 56 */ findSystemApk(PackageManager pm)57 private static Pair<String, Resources> findSystemApk(PackageManager pm) { 58 final Intent intent = new Intent(PartnerProvider.ACTION_PARTNER_CUSTOMIZATION); 59 for (ResolveInfo info : pm.queryBroadcastReceivers(intent, 0)) { 60 if (info.activityInfo != null 61 && (info.activityInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 62 final String packageName = info.activityInfo.packageName; 63 try { 64 final Resources res = pm.getResourcesForApplication(packageName); 65 return Pair.create(packageName, res); 66 } catch (NameNotFoundException e) { 67 Log.w("DefaultPartnerProvider", "Failed to find resources for " + packageName); 68 } 69 } 70 } 71 return null; 72 } 73 74 @Override getResources()75 public Resources getResources() { 76 return mResources; 77 } 78 79 @Override getLegacyWallpaperDirectory()80 public File getLegacyWallpaperDirectory() { 81 int resId = 0; 82 Resources res = getResources(); 83 // Resources may be null if no partner customization APK has been placed on the system image, so 84 // check if null before calling Resources#getIdentifier. 85 if (res != null) { 86 resId = res.getIdentifier(PartnerProvider.RES_LEGACY_SYSTEM_WALLPAPER_DIR, 87 "string", mPackageName); 88 } 89 return (resId != 0) ? new File(res.getString(resId)) : null; 90 } 91 92 @Override getPackageName()93 public String getPackageName() { 94 return mPackageName; 95 } 96 97 @Override shouldHideDefaultWallpaper()98 public boolean shouldHideDefaultWallpaper() { 99 Resources res = getResources(); 100 // Resources may be null if no partner customization APK has been placed on the system image, so 101 // check if null before calling Resources#getIdentifier. 102 if (res != null) { 103 final int resId = res.getIdentifier( 104 RES_DEFAULT_WALLPAPER_HIDDEN, /* defType */ "bool", mPackageName); 105 return resId != 0 && res.getBoolean(resId); 106 } 107 return false; 108 } 109 } 110