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     private static final int APP_OPS_OP_CODE = AppOpsManager.OP_WRITE_SETTINGS;
33     private static final String PM_WRITE_SETTINGS = Manifest.permission.WRITE_SETTINGS;
34 
35     private static final String[] PM_PERMISSIONS = {
36             PM_WRITE_SETTINGS
37     };
38 
AppStateWriteSettingsBridge(Context context, ApplicationsState appState, Callback callback)39     public AppStateWriteSettingsBridge(Context context, ApplicationsState appState, Callback
40             callback) {
41         super(context, appState, callback, APP_OPS_OP_CODE, PM_PERMISSIONS);
42     }
43 
44     @Override
updateExtraInfo(AppEntry app, String pkg, int uid)45     protected void updateExtraInfo(AppEntry app, String pkg, int uid) {
46         app.extraInfo = getWriteSettingsInfo(pkg, uid);
47     }
48 
getWriteSettingsInfo(String pkg, int uid)49     public WriteSettingsState getWriteSettingsInfo(String pkg, int uid) {
50         PermissionState permissionState = super.getPermissionInfo(pkg, uid);
51         return new WriteSettingsState(permissionState);
52     }
53 
54     public static class WriteSettingsState extends AppStateAppOpsBridge.PermissionState {
WriteSettingsState(PermissionState permissionState)55         public WriteSettingsState(PermissionState permissionState) {
56             super(permissionState.packageName, permissionState.userHandle);
57             this.packageInfo = permissionState.packageInfo;
58             this.appOpMode = permissionState.appOpMode;
59             this.permissionDeclared = permissionState.permissionDeclared;
60             this.staticPermissionGranted = permissionState.staticPermissionGranted;
61         }
62     }
63 
64     public static final AppFilter FILTER_WRITE_SETTINGS = new AppFilter() {
65         @Override
66         public void init() {
67         }
68 
69         @Override
70         public boolean filterApp(AppEntry info) {
71             return info.extraInfo != null;
72         }
73     };
74 }
75