| /* |
| * Copyright 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.car.settings.applications.specialaccess; |
| |
| import android.app.AppOpsManager; |
| import android.app.Application; |
| import android.car.drivingstate.CarUxRestrictions; |
| import android.content.Context; |
| import android.content.pm.ApplicationInfo; |
| import android.content.pm.PackageManager; |
| |
| import androidx.annotation.CallSuper; |
| import androidx.annotation.VisibleForTesting; |
| import androidx.preference.Preference; |
| import androidx.preference.PreferenceGroup; |
| import androidx.preference.SwitchPreference; |
| |
| import com.android.car.settings.R; |
| import com.android.car.settings.applications.specialaccess.AppStateAppOpsBridge.PermissionState; |
| import com.android.car.settings.common.FragmentController; |
| import com.android.car.settings.common.PreferenceController; |
| import com.android.settingslib.applications.ApplicationsState; |
| import com.android.settingslib.applications.ApplicationsState.AppEntry; |
| import com.android.settingslib.applications.ApplicationsState.AppFilter; |
| import com.android.settingslib.applications.ApplicationsState.CompoundFilter; |
| |
| import java.util.List; |
| |
| /** |
| * Displays a list of toggles for applications requesting permission to perform the operation with |
| * which this controller was initialized. {@link #init(int, String, int)} should be called when |
| * this controller is instantiated to specify the {@link AppOpsManager} operation code to control |
| * access for. |
| */ |
| public class AppOpsPreferenceController extends PreferenceController<PreferenceGroup> { |
| |
| private static final AppFilter FILTER_HAS_INFO = new AppFilter() { |
| @Override |
| public void init() { |
| // No op. |
| } |
| |
| @Override |
| public boolean filterApp(AppEntry info) { |
| return info.extraInfo != null; |
| } |
| }; |
| |
| private final AppOpsManager mAppOpsManager; |
| private final ApplicationsState mApplicationsState; |
| |
| private final Preference.OnPreferenceChangeListener mOnPreferenceChangeListener = |
| new Preference.OnPreferenceChangeListener() { |
| @Override |
| public boolean onPreferenceChange(Preference preference, Object newValue) { |
| AppOpPreference appOpPreference = (AppOpPreference) preference; |
| AppEntry entry = appOpPreference.mEntry; |
| PermissionState extraInfo = (PermissionState) entry.extraInfo; |
| boolean allowOp = (Boolean) newValue; |
| if (allowOp != extraInfo.isPermissible()) { |
| mAppOpsManager.setMode(mAppOpsOpCode, entry.info.uid, |
| entry.info.packageName, |
| allowOp ? AppOpsManager.MODE_ALLOWED : mNegativeOpMode); |
| // Update the extra info of this entry so that it reflects the new mode. |
| mAppEntryListManager.forceUpdate(entry); |
| return true; |
| } |
| return false; |
| } |
| }; |
| |
| private final AppEntryListManager.Callback mCallback = new AppEntryListManager.Callback() { |
| @Override |
| public void onAppEntryListChanged(List<AppEntry> entries) { |
| mEntries = entries; |
| refreshUi(); |
| } |
| }; |
| |
| private int mAppOpsOpCode = AppOpsManager.OP_NONE; |
| private String mPermission; |
| private int mNegativeOpMode = -1; |
| |
| @VisibleForTesting |
| AppEntryListManager mAppEntryListManager; |
| private List<AppEntry> mEntries; |
| |
| private boolean mShowSystem; |
| |
| public AppOpsPreferenceController(Context context, String preferenceKey, |
| FragmentController fragmentController, CarUxRestrictions uxRestrictions) { |
| super(context, preferenceKey, fragmentController, uxRestrictions); |
| mAppOpsManager = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE); |
| mApplicationsState = ApplicationsState.getInstance( |
| (Application) context.getApplicationContext()); |
| mAppEntryListManager = new AppEntryListManager(context); |
| } |
| |
| @Override |
| protected Class<PreferenceGroup> getPreferenceType() { |
| return PreferenceGroup.class; |
| } |
| |
| /** |
| * Initializes this controller with the {@code appOpsOpCode} (selected from the operations in |
| * {@link AppOpsManager}) to control access for. |
| * |
| * @param permission the {@link android.Manifest.permission} apps must hold to perform the |
| * operation. |
| * @param negativeOpMode the operation mode that will be passed to {@link |
| * AppOpsManager#setMode(int, int, String, int)} when access for a app is |
| * revoked. |
| */ |
| public void init(int appOpsOpCode, String permission, int negativeOpMode) { |
| mAppOpsOpCode = appOpsOpCode; |
| mPermission = permission; |
| mNegativeOpMode = negativeOpMode; |
| } |
| |
| /** |
| * Rebuilds the preference list to show system applications if {@code showSystem} is true. |
| * System applications will be hidden otherwise. |
| */ |
| public void setShowSystem(boolean showSystem) { |
| if (mShowSystem != showSystem) { |
| mShowSystem = showSystem; |
| mAppEntryListManager.forceUpdate(); |
| } |
| } |
| |
| @Override |
| protected void checkInitialized() { |
| if (mAppOpsOpCode == AppOpsManager.OP_NONE) { |
| throw new IllegalStateException("App operation code must be initialized"); |
| } |
| if (mPermission == null) { |
| throw new IllegalStateException("Manifest permission must be initialized"); |
| } |
| if (mNegativeOpMode == -1) { |
| throw new IllegalStateException("Negative case app operation mode must be initialized"); |
| } |
| } |
| |
| @Override |
| protected void onCreateInternal() { |
| AppStateAppOpsBridge extraInfoBridge = new AppStateAppOpsBridge(getContext(), mAppOpsOpCode, |
| mPermission); |
| mAppEntryListManager.init(extraInfoBridge, this::getAppFilter, mCallback); |
| } |
| |
| @Override |
| protected void onStartInternal() { |
| mAppEntryListManager.start(); |
| } |
| |
| @Override |
| protected void onStopInternal() { |
| mAppEntryListManager.stop(); |
| } |
| |
| @Override |
| protected void onDestroyInternal() { |
| mAppEntryListManager.destroy(); |
| } |
| |
| @Override |
| protected void updateState(PreferenceGroup preference) { |
| if (mEntries == null) { |
| // Still loading. |
| return; |
| } |
| preference.removeAll(); |
| for (AppEntry entry : mEntries) { |
| mApplicationsState.ensureIcon(entry); |
| Preference appOpPreference = new AppOpPreference(getContext(), entry); |
| appOpPreference.setOnPreferenceChangeListener(mOnPreferenceChangeListener); |
| preference.addPreference(appOpPreference); |
| } |
| } |
| |
| @CallSuper |
| protected AppFilter getAppFilter() { |
| AppFilter filterObj = new CompoundFilter(FILTER_HAS_INFO, |
| ApplicationsState.FILTER_NOT_HIDE); |
| if (!mShowSystem) { |
| filterObj = new CompoundFilter(filterObj, |
| ApplicationsState.FILTER_DOWNLOADED_AND_LAUNCHER); |
| } |
| return filterObj; |
| } |
| |
| private static class AppOpPreference extends SwitchPreference { |
| |
| private final AppEntry mEntry; |
| |
| AppOpPreference(Context context, AppEntry entry) { |
| super(context); |
| String key = entry.info.packageName + "|" + entry.info.uid; |
| setKey(key); |
| setTitle(entry.label); |
| setIcon(entry.icon); |
| setSummary(getAppStateText(entry.info)); |
| setPersistent(false); |
| PermissionState extraInfo = (PermissionState) entry.extraInfo; |
| setChecked(extraInfo.isPermissible()); |
| mEntry = entry; |
| } |
| |
| private String getAppStateText(ApplicationInfo info) { |
| if ((info.flags & ApplicationInfo.FLAG_INSTALLED) == 0) { |
| return getContext().getString(R.string.not_installed); |
| } else if (!info.enabled || info.enabledSetting |
| == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) { |
| return getContext().getString(R.string.disabled); |
| } |
| return null; |
| } |
| } |
| } |