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