1 /* 2 * Copyright (C) 2018 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 17 package com.android.tv.settings.device.apps.specialaccess; 18 19 import android.Manifest; 20 import android.app.AppOpsManager; 21 import android.app.tvsettings.TvSettingsEnums; 22 import android.os.Bundle; 23 24 import androidx.annotation.Keep; 25 import androidx.annotation.NonNull; 26 import androidx.preference.Preference; 27 import androidx.preference.PreferenceGroup; 28 import androidx.preference.SwitchPreference; 29 import androidx.preference.TwoStatePreference; 30 31 import com.android.internal.logging.nano.MetricsProto; 32 import com.android.settingslib.applications.ApplicationsState; 33 import com.android.tv.settings.R; 34 35 /** 36 * Settings screen for managing "Display over other apps" permission 37 */ 38 @Keep 39 public class SystemAlertWindow extends ManageAppOp { 40 41 private AppOpsManager mAppOpsManager; 42 43 @Override getMetricsCategory()44 public int getMetricsCategory() { 45 return MetricsProto.MetricsEvent.SYSTEM_ALERT_WINDOW_APPS; 46 } 47 48 @Override onCreate(Bundle savedInstanceState)49 public void onCreate(Bundle savedInstanceState) { 50 super.onCreate(savedInstanceState); 51 mAppOpsManager = getContext().getSystemService(AppOpsManager.class); 52 } 53 54 @Override getAppOpsOpCode()55 public int getAppOpsOpCode() { 56 return AppOpsManager.OP_SYSTEM_ALERT_WINDOW; 57 } 58 59 @Override getPermission()60 public String getPermission() { 61 return Manifest.permission.SYSTEM_ALERT_WINDOW; 62 } 63 64 @Override onCreatePreferences(Bundle savedInstanceState, String rootKey)65 public void onCreatePreferences(Bundle savedInstanceState, String rootKey) { 66 setPreferencesFromResource(R.xml.system_alert_window, null); 67 } 68 69 @Override customizedIgnoredPackagesArray()70 public int customizedIgnoredPackagesArray() { 71 return R.array.customized_ignored_system_alert_window_packages; 72 } 73 74 @NonNull 75 @Override bindPreference(@onNull Preference preference, ApplicationsState.AppEntry entry)76 public Preference bindPreference(@NonNull Preference preference, 77 ApplicationsState.AppEntry entry) { 78 final TwoStatePreference switchPref = (SwitchPreference) preference; 79 switchPref.setTitle(entry.label); 80 switchPref.setKey(entry.info.packageName); 81 switchPref.setIcon(entry.icon); 82 switchPref.setOnPreferenceChangeListener((pref, newValue) -> { 83 setSystemAlertWindowAccess(entry, (Boolean) newValue); 84 return true; 85 }); 86 87 switchPref.setSummary(getPreferenceSummary(entry)); 88 switchPref.setChecked(((PermissionState) entry.extraInfo).isAllowed()); 89 90 return switchPref; 91 } 92 93 @NonNull 94 @Override createAppPreference()95 public Preference createAppPreference() { 96 return new SwitchPreference(getPreferenceManager().getContext()); 97 } 98 99 @NonNull 100 @Override getAppPreferenceGroup()101 public PreferenceGroup getAppPreferenceGroup() { 102 return getPreferenceScreen(); 103 } 104 setSystemAlertWindowAccess(ApplicationsState.AppEntry entry, boolean grant)105 private void setSystemAlertWindowAccess(ApplicationsState.AppEntry entry, boolean grant) { 106 mAppOpsManager.setMode(AppOpsManager.OP_SYSTEM_ALERT_WINDOW, 107 entry.info.uid, entry.info.packageName, 108 grant ? AppOpsManager.MODE_ALLOWED : AppOpsManager.MODE_ERRORED); 109 updateAppList(); 110 } 111 getPreferenceSummary(ApplicationsState.AppEntry entry)112 private CharSequence getPreferenceSummary(ApplicationsState.AppEntry entry) { 113 if (entry.extraInfo instanceof PermissionState) { 114 return getContext().getText(((PermissionState) entry.extraInfo).isAllowed() 115 ? R.string.app_permission_summary_allowed 116 : R.string.app_permission_summary_not_allowed); 117 } else { 118 return null; 119 } 120 } 121 122 @Override getPageId()123 protected int getPageId() { 124 return TvSettingsEnums.APPS_SPECIAL_APP_ACCESS_DISPLAY_OVER_OTHERS; 125 } 126 } 127