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.settings.Utils; 23 import com.android.settingslib.applications.ApplicationsState; 24 import com.android.settingslib.applications.ApplicationsState.AppEntry; 25 import com.android.settingslib.applications.ApplicationsState.AppFilter; 26 27 import java.util.ArrayList; 28 import java.util.List; 29 30 /* 31 * Connects info of apps that draw overlay to the ApplicationsState. Wraps around the generic 32 * AppStateAppOpsBridge class to tailor to the semantics of SYSTEM_ALERT_WINDOW. Also provides app 33 * filters that can use the info. 34 */ 35 public class AppStateOverlayBridge extends AppStateAppOpsBridge { 36 37 private static final int APP_OPS_OP_CODE = AppOpsManager.OP_SYSTEM_ALERT_WINDOW; 38 private static final String PM_SYSTEM_ALERT_WINDOW = Manifest.permission.SYSTEM_ALERT_WINDOW; 39 private static final String[] PM_PERMISSION = { 40 PM_SYSTEM_ALERT_WINDOW 41 }; 42 AppStateOverlayBridge(Context context, ApplicationsState appState, Callback callback)43 public AppStateOverlayBridge(Context context, ApplicationsState appState, Callback callback) { 44 super(context, appState, callback, APP_OPS_OP_CODE, PM_PERMISSION); 45 } 46 47 @Override updateExtraInfo(AppEntry app, String pkg, int uid)48 protected void updateExtraInfo(AppEntry app, String pkg, int uid) { 49 app.extraInfo = getOverlayInfo(pkg, uid); 50 } 51 getOverlayInfo(String pkg, int uid)52 public OverlayState getOverlayInfo(String pkg, int uid) { 53 PermissionState permissionState = super.getPermissionInfo(pkg, uid); 54 return new OverlayState(permissionState); 55 } 56 57 public static class OverlayState extends AppStateAppOpsBridge.PermissionState { 58 public final boolean controlEnabled; 59 60 private static final List<String> DISABLE_PACKAGE_LIST = new ArrayList<>(); 61 62 static { 63 DISABLE_PACKAGE_LIST.add(Utils.SYSTEMUI_PACKAGE_NAME); 64 } 65 OverlayState(PermissionState permissionState)66 public OverlayState(PermissionState permissionState) { 67 super(permissionState.packageName, permissionState.userHandle); 68 this.packageInfo = permissionState.packageInfo; 69 this.appOpMode = permissionState.appOpMode; 70 this.permissionDeclared = permissionState.permissionDeclared; 71 this.staticPermissionGranted = permissionState.staticPermissionGranted; 72 controlEnabled = !DISABLE_PACKAGE_LIST.contains(permissionState.packageName); 73 } 74 } 75 76 public static final AppFilter FILTER_SYSTEM_ALERT_WINDOW = 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