1 /* 2 * Copyright (C) 2021 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.appinfo; 17 18 import android.app.AppOpsManager; 19 import android.app.settings.SettingsEnums; 20 import android.content.Context; 21 import android.os.Bundle; 22 23 import androidx.appcompat.app.AlertDialog; 24 import androidx.preference.Preference; 25 import androidx.preference.Preference.OnPreferenceChangeListener; 26 import androidx.preference.SwitchPreference; 27 28 import com.android.settings.R; 29 import com.android.settings.applications.AppInfoWithHeader; 30 import com.android.settings.applications.AppStateAppOpsBridge.PermissionState; 31 import com.android.settings.applications.AppStateMediaManagementAppsBridge; 32 import com.android.settingslib.applications.ApplicationsState.AppEntry; 33 34 /** 35 * Class for displaying app info related to {@link AppOpsManager#OP_MANAGE_MEDIA}. 36 */ 37 public class MediaManagementAppsDetails extends AppInfoWithHeader implements 38 OnPreferenceChangeListener { 39 40 private static final String KEY_SWITCH_PREF = "media_management_apps_toggle"; 41 42 private AppStateMediaManagementAppsBridge mAppBridge; 43 private AppOpsManager mAppOpsManager; 44 private SwitchPreference mSwitchPref; 45 private PermissionState mPermissionState; 46 47 @Override onCreate(Bundle savedInstanceState)48 public void onCreate(Bundle savedInstanceState) { 49 super.onCreate(savedInstanceState); 50 51 final Context context = getActivity(); 52 mAppBridge = new AppStateMediaManagementAppsBridge(context, mState, null /* callback */); 53 mAppOpsManager = context.getSystemService(AppOpsManager.class); 54 55 // initialize preferences 56 addPreferencesFromResource(R.xml.media_management_apps); 57 mSwitchPref = findPreference(KEY_SWITCH_PREF); 58 59 // install event listeners 60 mSwitchPref.setOnPreferenceChangeListener(this); 61 } 62 63 @Override onPreferenceChange(Preference preference, Object newValue)64 public boolean onPreferenceChange(Preference preference, Object newValue) { 65 final boolean value = (Boolean) newValue; 66 if (preference == mSwitchPref) { 67 if (mPermissionState != null && value != mPermissionState.isPermissible()) { 68 setCanManageMedia(value); 69 logPermissionChange(value, mPackageName); 70 refreshUi(); 71 } 72 return true; 73 } 74 return false; 75 } 76 setCanManageMedia(boolean newState)77 private void setCanManageMedia(boolean newState) { 78 mAppOpsManager.setUidMode(AppOpsManager.OP_MANAGE_MEDIA, mPackageInfo.applicationInfo.uid, 79 newState ? AppOpsManager.MODE_ALLOWED : AppOpsManager.MODE_ERRORED); 80 } 81 logPermissionChange(boolean newState, String packageName)82 private void logPermissionChange(boolean newState, String packageName) { 83 mMetricsFeatureProvider.action( 84 mMetricsFeatureProvider.getAttribution(getActivity()), 85 SettingsEnums.ACTION_MEDIA_MANAGEMENT_APPS_TOGGLE, 86 getMetricsCategory(), 87 packageName, 88 newState ? 1 : 0); 89 } 90 91 @Override refreshUi()92 protected boolean refreshUi() { 93 if (mPackageInfo == null || mPackageInfo.applicationInfo == null) { 94 return false; 95 } 96 97 mPermissionState = mAppBridge.createPermissionState(mPackageName, 98 mPackageInfo.applicationInfo.uid); 99 mSwitchPref.setEnabled(mPermissionState.permissionDeclared); 100 mSwitchPref.setChecked(mPermissionState.isPermissible()); 101 return true; 102 } 103 104 @Override createDialog(int id, int errorCode)105 protected AlertDialog createDialog(int id, int errorCode) { 106 return null; 107 } 108 109 @Override getMetricsCategory()110 public int getMetricsCategory() { 111 return SettingsEnums.MEDIA_MANAGEMENT_APPS; 112 } 113 114 /** 115 * Returns the string that states whether the app has access to 116 * {@link android.Manifest.permission#MANAGE_MEDIA}. 117 */ getSummary(Context context, AppEntry entry)118 public static int getSummary(Context context, AppEntry entry) { 119 final PermissionState state; 120 if (entry.extraInfo instanceof PermissionState) { 121 state = (PermissionState) entry.extraInfo; 122 } else { 123 state = new AppStateMediaManagementAppsBridge(context, null /* appState */, 124 null /* callback */).createPermissionState(entry.info.packageName, 125 entry.info.uid); 126 } 127 128 return state.isPermissible() ? R.string.app_permission_summary_allowed 129 : R.string.app_permission_summary_not_allowed; 130 } 131 } 132