| /* |
| * Copyright (C) 2008 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.settings; |
| |
| import static com.android.settingslib.RestrictedLockUtils.EnforcedAdmin; |
| |
| import android.accounts.Account; |
| import android.accounts.AccountManager; |
| import android.accounts.AuthenticatorDescription; |
| import android.app.Activity; |
| import android.content.ComponentName; |
| import android.content.ContentResolver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.pm.PackageManager; |
| import android.content.pm.UserInfo; |
| import android.content.res.Resources; |
| import android.graphics.drawable.Drawable; |
| import android.os.Bundle; |
| import android.os.Environment; |
| import android.os.SystemProperties; |
| import android.os.UserHandle; |
| import android.os.UserManager; |
| import android.provider.Settings; |
| import android.support.annotation.VisibleForTesting; |
| import android.telephony.euicc.EuiccManager; |
| import android.text.TextUtils; |
| import android.util.Log; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.View.OnScrollChangeListener; |
| import android.view.ViewGroup; |
| import android.view.ViewTreeObserver.OnGlobalLayoutListener; |
| import android.widget.Button; |
| import android.widget.CheckBox; |
| import android.widget.ImageView; |
| import android.widget.LinearLayout; |
| import android.widget.ScrollView; |
| import android.widget.TextView; |
| |
| import com.android.internal.logging.nano.MetricsProto.MetricsEvent; |
| import com.android.settings.password.ChooseLockSettingsHelper; |
| import com.android.settings.password.ConfirmLockPattern; |
| import com.android.settingslib.RestrictedLockUtils; |
| |
| import java.util.List; |
| |
| /** |
| * Confirm and execute a reset of the device to a clean "just out of the box" |
| * state. Multiple confirmations are required: first, a general "are you sure |
| * you want to do this?" prompt, followed by a keyguard pattern trace if the user |
| * has defined one, followed by a final strongly-worded "THIS WILL ERASE EVERYTHING |
| * ON THE PHONE" prompt. If at any time the phone is allowed to go to sleep, is |
| * locked, et cetera, then the confirmation sequence is abandoned. |
| * |
| * This is the initial screen. |
| */ |
| public class MasterClear extends OptionsMenuFragment { |
| private static final String TAG = "MasterClear"; |
| |
| private static final int KEYGUARD_REQUEST = 55; |
| |
| static final String ERASE_EXTERNAL_EXTRA = "erase_sd"; |
| static final String ERASE_ESIMS_EXTRA = "erase_esim"; |
| |
| private View mContentView; |
| private Button mInitiateButton; |
| private View mExternalStorageContainer; |
| @VisibleForTesting CheckBox mExternalStorage; |
| private ScrollView mScrollView; |
| |
| private final OnGlobalLayoutListener mOnGlobalLayoutListener = new OnGlobalLayoutListener() { |
| @Override |
| public void onGlobalLayout() { |
| mScrollView.getViewTreeObserver().removeOnGlobalLayoutListener(mOnGlobalLayoutListener); |
| mInitiateButton.setEnabled(hasReachedBottom(mScrollView)); |
| } |
| }; |
| |
| /** |
| * Keyguard validation is run using the standard {@link ConfirmLockPattern} |
| * component as a subactivity |
| * @param request the request code to be returned once confirmation finishes |
| * @return true if confirmation launched |
| */ |
| private boolean runKeyguardConfirmation(int request) { |
| Resources res = getActivity().getResources(); |
| return new ChooseLockSettingsHelper(getActivity(), this).launchConfirmationActivity( |
| request, res.getText(R.string.master_clear_title)); |
| } |
| |
| @Override |
| public void onActivityResult(int requestCode, int resultCode, Intent data) { |
| super.onActivityResult(requestCode, resultCode, data); |
| |
| if (requestCode != KEYGUARD_REQUEST) { |
| return; |
| } |
| |
| // If the user entered a valid keyguard trace, present the final |
| // confirmation prompt; otherwise, go back to the initial state. |
| if (resultCode == Activity.RESULT_OK) { |
| showFinalConfirmation(); |
| } else { |
| establishInitialState(); |
| } |
| } |
| |
| @VisibleForTesting |
| void showFinalConfirmation() { |
| Bundle args = new Bundle(); |
| args.putBoolean(ERASE_EXTERNAL_EXTRA, mExternalStorage.isChecked()); |
| // TODO: Offer the user a choice to wipe eSIMs when it is technically feasible to do so. |
| args.putBoolean(ERASE_ESIMS_EXTRA, true); |
| ((SettingsActivity) getActivity()).startPreferencePanel( |
| this, MasterClearConfirm.class.getName(), |
| args, R.string.master_clear_confirm_title, null, null, 0); |
| } |
| |
| /** |
| * If the user clicks to begin the reset sequence, we next require a |
| * keyguard confirmation if the user has currently enabled one. If there |
| * is no keyguard available, we simply go to the final confirmation prompt. |
| * |
| * If the user is in demo mode, route to the demo mode app for confirmation. |
| */ |
| @VisibleForTesting |
| protected final Button.OnClickListener mInitiateListener = new Button.OnClickListener() { |
| |
| public void onClick(View view) { |
| final Context context = view.getContext(); |
| if (Utils.isDemoUser(context)) { |
| final ComponentName componentName = Utils.getDeviceOwnerComponent(context); |
| if (componentName != null) { |
| final Intent requestFactoryReset = new Intent() |
| .setPackage(componentName.getPackageName()) |
| .setAction(Intent.ACTION_FACTORY_RESET); |
| context.startActivity(requestFactoryReset); |
| } |
| } else if (!runKeyguardConfirmation(KEYGUARD_REQUEST)) { |
| showFinalConfirmation(); |
| } |
| } |
| }; |
| |
| /** |
| * In its initial state, the activity presents a button for the user to |
| * click in order to initiate a confirmation sequence. This method is |
| * called from various other points in the code to reset the activity to |
| * this base state. |
| * |
| * <p>Reinflating views from resources is expensive and prevents us from |
| * caching widget pointers, so we use a single-inflate pattern: we lazy- |
| * inflate each view, caching all of the widget pointers we'll need at the |
| * time, then simply reuse the inflated views directly whenever we need |
| * to change contents. |
| */ |
| private void establishInitialState() { |
| mInitiateButton = (Button) mContentView.findViewById(R.id.initiate_master_clear); |
| mInitiateButton.setOnClickListener(mInitiateListener); |
| mExternalStorageContainer = mContentView.findViewById(R.id.erase_external_container); |
| mExternalStorage = (CheckBox) mContentView.findViewById(R.id.erase_external); |
| mScrollView = (ScrollView) mContentView.findViewById(R.id.master_clear_scrollview); |
| |
| /* |
| * If the external storage is emulated, it will be erased with a factory |
| * reset at any rate. There is no need to have a separate option until |
| * we have a factory reset that only erases some directories and not |
| * others. Likewise, if it's non-removable storage, it could potentially have been |
| * encrypted, and will also need to be wiped. |
| */ |
| boolean isExtStorageEmulated = Environment.isExternalStorageEmulated(); |
| if (isExtStorageEmulated |
| || (!Environment.isExternalStorageRemovable() && isExtStorageEncrypted())) { |
| mExternalStorageContainer.setVisibility(View.GONE); |
| |
| final View externalOption = mContentView.findViewById(R.id.erase_external_option_text); |
| externalOption.setVisibility(View.GONE); |
| |
| final View externalAlsoErased = mContentView.findViewById(R.id.also_erases_external); |
| externalAlsoErased.setVisibility(View.VISIBLE); |
| |
| // If it's not emulated, it is on a separate partition but it means we're doing |
| // a force wipe due to encryption. |
| mExternalStorage.setChecked(!isExtStorageEmulated); |
| } else { |
| mExternalStorageContainer.setOnClickListener(new View.OnClickListener() { |
| |
| @Override |
| public void onClick(View v) { |
| mExternalStorage.toggle(); |
| } |
| }); |
| } |
| |
| if (showWipeEuicc()) { |
| final View esimAlsoErased = mContentView.findViewById(R.id.also_erases_esim); |
| esimAlsoErased.setVisibility(View.VISIBLE); |
| |
| final View noCancelMobilePlan = mContentView.findViewById(R.id.no_cancel_mobile_plan); |
| noCancelMobilePlan.setVisibility(View.VISIBLE); |
| } |
| |
| final UserManager um = (UserManager) getActivity().getSystemService(Context.USER_SERVICE); |
| loadAccountList(um); |
| StringBuffer contentDescription = new StringBuffer(); |
| View masterClearContainer = mContentView.findViewById(R.id.master_clear_container); |
| getContentDescription(masterClearContainer, contentDescription); |
| masterClearContainer.setContentDescription(contentDescription); |
| |
| // Set the status of initiateButton based on scrollview |
| mScrollView.setOnScrollChangeListener(new OnScrollChangeListener() { |
| @Override |
| public void onScrollChange(View v, int scrollX, int scrollY, int oldScrollX, |
| int oldScrollY) { |
| if (v instanceof ScrollView && hasReachedBottom((ScrollView) v)) { |
| mInitiateButton.setEnabled(true); |
| } |
| } |
| }); |
| |
| // Set the initial state of the initiateButton |
| mScrollView.getViewTreeObserver().addOnGlobalLayoutListener(mOnGlobalLayoutListener); |
| } |
| |
| /** |
| * Whether to show strings indicating that the eUICC will be wiped. |
| * |
| * <p>We show the strings on any device which supports eUICC as long as the eUICC was ever |
| * provisioned (that is, at least one profile was ever downloaded onto it). |
| */ |
| @VisibleForTesting |
| boolean showWipeEuicc() { |
| Context context = getContext(); |
| if (!isEuiccEnabled(context)) { |
| return false; |
| } |
| ContentResolver cr = context.getContentResolver(); |
| return Settings.Global.getInt(cr, Settings.Global.EUICC_PROVISIONED, 0) != 0; |
| } |
| |
| @VisibleForTesting |
| protected boolean isEuiccEnabled(Context context) { |
| EuiccManager euiccManager = (EuiccManager) context.getSystemService(Context.EUICC_SERVICE); |
| return euiccManager.isEnabled(); |
| } |
| |
| @VisibleForTesting |
| boolean hasReachedBottom(final ScrollView scrollView) { |
| if (scrollView.getChildCount() < 1) { |
| return true; |
| } |
| |
| final View view = scrollView.getChildAt(0); |
| final int diff = view.getBottom() - (scrollView.getHeight() + scrollView.getScrollY()); |
| |
| return diff <= 0; |
| } |
| |
| private void getContentDescription(View v, StringBuffer description) { |
| if (v.getVisibility() != View.VISIBLE) { |
| return; |
| } |
| if (v instanceof ViewGroup) { |
| ViewGroup vGroup = (ViewGroup) v; |
| for (int i = 0; i < vGroup.getChildCount(); i++) { |
| View nextChild = vGroup.getChildAt(i); |
| getContentDescription(nextChild, description); |
| } |
| } else if (v instanceof TextView) { |
| TextView vText = (TextView) v; |
| description.append(vText.getText()); |
| description.append(","); // Allow Talkback to pause between sections. |
| } |
| } |
| |
| private boolean isExtStorageEncrypted() { |
| String state = SystemProperties.get("vold.decrypt"); |
| return !"".equals(state); |
| } |
| |
| private void loadAccountList(final UserManager um) { |
| View accountsLabel = mContentView.findViewById(R.id.accounts_label); |
| LinearLayout contents = (LinearLayout)mContentView.findViewById(R.id.accounts); |
| contents.removeAllViews(); |
| |
| Context context = getActivity(); |
| final List<UserInfo> profiles = um.getProfiles(UserHandle.myUserId()); |
| final int profilesSize = profiles.size(); |
| |
| AccountManager mgr = AccountManager.get(context); |
| |
| LayoutInflater inflater = (LayoutInflater)context.getSystemService( |
| Context.LAYOUT_INFLATER_SERVICE); |
| |
| int accountsCount = 0; |
| for (int profileIndex = 0; profileIndex < profilesSize; profileIndex++) { |
| final UserInfo userInfo = profiles.get(profileIndex); |
| final int profileId = userInfo.id; |
| final UserHandle userHandle = new UserHandle(profileId); |
| Account[] accounts = mgr.getAccountsAsUser(profileId); |
| final int N = accounts.length; |
| if (N == 0) { |
| continue; |
| } |
| accountsCount += N; |
| |
| AuthenticatorDescription[] descs = AccountManager.get(context) |
| .getAuthenticatorTypesAsUser(profileId); |
| final int M = descs.length; |
| |
| if (profilesSize > 1) { |
| View titleView = Utils.inflateCategoryHeader(inflater, contents); |
| final TextView titleText = (TextView) titleView.findViewById(android.R.id.title); |
| titleText.setText(userInfo.isManagedProfile() ? R.string.category_work |
| : R.string.category_personal); |
| contents.addView(titleView); |
| } |
| |
| for (int i = 0; i < N; i++) { |
| Account account = accounts[i]; |
| AuthenticatorDescription desc = null; |
| for (int j = 0; j < M; j++) { |
| if (account.type.equals(descs[j].type)) { |
| desc = descs[j]; |
| break; |
| } |
| } |
| if (desc == null) { |
| Log.w(TAG, "No descriptor for account name=" + account.name |
| + " type=" + account.type); |
| continue; |
| } |
| Drawable icon = null; |
| try { |
| if (desc.iconId != 0) { |
| Context authContext = context.createPackageContextAsUser(desc.packageName, |
| 0, userHandle); |
| icon = context.getPackageManager().getUserBadgedIcon( |
| authContext.getDrawable(desc.iconId), userHandle); |
| } |
| } catch (PackageManager.NameNotFoundException e) { |
| Log.w(TAG, "Bad package name for account type " + desc.type); |
| } catch (Resources.NotFoundException e) { |
| Log.w(TAG, "Invalid icon id for account type " + desc.type, e); |
| } |
| if (icon == null) { |
| icon = context.getPackageManager().getDefaultActivityIcon(); |
| } |
| |
| View child = inflater.inflate(R.layout.master_clear_account, contents, false); |
| ((ImageView) child.findViewById(android.R.id.icon)).setImageDrawable(icon); |
| ((TextView) child.findViewById(android.R.id.title)).setText(account.name); |
| contents.addView(child); |
| } |
| } |
| |
| if (accountsCount > 0) { |
| accountsLabel.setVisibility(View.VISIBLE); |
| contents.setVisibility(View.VISIBLE); |
| } |
| // Checking for all other users and their profiles if any. |
| View otherUsers = mContentView.findViewById(R.id.other_users_present); |
| final boolean hasOtherUsers = (um.getUserCount() - profilesSize) > 0; |
| otherUsers.setVisibility(hasOtherUsers ? View.VISIBLE : View.GONE); |
| } |
| |
| @Override |
| public View onCreateView(LayoutInflater inflater, ViewGroup container, |
| Bundle savedInstanceState) { |
| final Context context = getContext(); |
| final EnforcedAdmin admin = RestrictedLockUtils.checkIfRestrictionEnforced(context, |
| UserManager.DISALLOW_FACTORY_RESET, UserHandle.myUserId()); |
| final UserManager um = UserManager.get(context); |
| final boolean disallow = !um.isAdminUser() || RestrictedLockUtils.hasBaseUserRestriction( |
| context, UserManager.DISALLOW_FACTORY_RESET, UserHandle.myUserId()); |
| if (disallow && !Utils.isDemoUser(context)) { |
| return inflater.inflate(R.layout.master_clear_disallowed_screen, null); |
| } else if (admin != null) { |
| View view = inflater.inflate(R.layout.admin_support_details_empty_view, null); |
| ShowAdminSupportDetailsDialog.setAdminSupportDetails(getActivity(), view, admin, false); |
| view.setVisibility(View.VISIBLE); |
| return view; |
| } |
| |
| mContentView = inflater.inflate(R.layout.master_clear, null); |
| |
| establishInitialState(); |
| return mContentView; |
| } |
| |
| @Override |
| public int getMetricsCategory() { |
| return MetricsEvent.MASTER_CLEAR; |
| } |
| } |
