1/* 2 * Copyright (C) 2015 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 */ 16package com.android.settings.applications; 17 18import android.Manifest; 19import android.app.AppOpsManager; 20import android.content.Context; 21import android.util.Log; 22 23import com.android.settingslib.applications.ApplicationsState; 24import com.android.settingslib.applications.ApplicationsState.AppEntry; 25import com.android.settingslib.applications.ApplicationsState.AppFilter; 26 27/* 28 * Connects info of apps that draw overlay to the ApplicationsState. Wraps around the generic 29 * AppStateAppOpsBridge class to tailor to the semantics of SYSTEM_ALERT_WINDOW. Also provides app 30 * filters that can use the info. 31 */ 32public class AppStateWriteSettingsBridge extends AppStateAppOpsBridge { 33 34 private static final String TAG = "AppStateWriteSettingsBridge"; 35 private static final int APP_OPS_OP_CODE = AppOpsManager.OP_WRITE_SETTINGS; 36 private static final String PM_WRITE_SETTINGS = Manifest.permission.WRITE_SETTINGS; 37 private static final String PM_CHANGE_NETWORK_STATE = Manifest.permission.CHANGE_NETWORK_STATE; 38 // CHANGE_NETWORK_STATE is now merged with WRITE_SETTINGS 39 private static final String[] PM_PERMISSIONS = { 40 PM_WRITE_SETTINGS, 41 PM_CHANGE_NETWORK_STATE 42 }; 43 44 public AppStateWriteSettingsBridge(Context context, ApplicationsState appState, Callback 45 callback) { 46 super(context, appState, callback, APP_OPS_OP_CODE, PM_PERMISSIONS); 47 } 48 49 @Override 50 protected void updateExtraInfo(AppEntry app, String pkg, int uid) { 51 app.extraInfo = getWriteSettingsInfo(pkg, uid); 52 } 53 54 public WriteSettingsState getWriteSettingsInfo(String pkg, int uid) { 55 PermissionState permissionState = super.getPermissionInfo(pkg, uid); 56 return new WriteSettingsState(permissionState); 57 } 58 59 // TODO: figure out how to filter out system apps for this method 60 public int getNumberOfPackagesWithPermission() { 61 return super.getNumPackagesDeclaredPermission(); 62 } 63 64 // TODO: figure out how to filter out system apps for this method 65 public int getNumberOfPackagesCanWriteSettings() { 66 return super.getNumPackagesAllowedByAppOps(); 67 } 68 69 public static class WriteSettingsState extends AppStateAppOpsBridge.PermissionState { 70 public WriteSettingsState(PermissionState permissionState) { 71 super(permissionState.packageName, permissionState.userHandle); 72 this.packageInfo = permissionState.packageInfo; 73 this.appOpMode = permissionState.appOpMode; 74 this.permissionDeclared = permissionState.permissionDeclared; 75 this.staticPermissionGranted = permissionState.staticPermissionGranted; 76 } 77 } 78 79 public static final AppFilter FILTER_WRITE_SETTINGS = new AppFilter() { 80 @Override 81 public void init() { 82 } 83 84 @Override 85 public boolean filterApp(AppEntry info) { 86 return info.extraInfo != null; 87 } 88 }; 89} 90