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/*
* Copyright (C) 2010 The Android Open Source Project
* Copyright (C) 2015 The CyanogenMod 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 android.app.AlertDialog;
import android.app.Dialog;
import android.app.DialogFragment;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.os.AsyncTask;
import android.provider.Settings;
import android.service.persistentdata.PersistentDataBlockManager;
import com.android.internal.logging.MetricsLogger;
import android.content.Intent;
import android.os.Bundle;
import android.os.UserManager;
import android.service.persistentdata.PersistentDataBlockManager;
import android.widget.TextView;
/**
* 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 confirmation screen.
*/
public class MasterClearConfirm extends DialogFragment {
private static final String REASON_MASTER_CLEAR_CONFIRM = "MasterClearConfirm";
private boolean mEraseInternal;
private boolean mEraseExternal;
public static class FrpDialog extends DialogFragment {
private int mOriginalOrientation;
public static FrpDialog createInstance(boolean wipeInternal, boolean wipeExternal) {
Bundle b = new Bundle();
b.putBoolean(MasterClear.EXTRA_WIPE_MEDIA, wipeInternal);
b.putBoolean(Intent.EXTRA_WIPE_EXTERNAL_STORAGE, wipeExternal);
FrpDialog fragment = new FrpDialog();
fragment.setArguments(b);
return fragment;
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
final ProgressDialog progressDialog = new ProgressDialog(getActivity(), getTheme());
progressDialog.setIndeterminate(true);
progressDialog.setCancelable(false);
progressDialog.setTitle(getActivity().getString(R.string.master_clear_progress_title));
progressDialog.setMessage(getActivity().getString(R.string.master_clear_progress_text));
return progressDialog;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setShowsDialog(true);
setCancelable(false);
}
@Override
public void onStart() {
super.onStart();
// need to prevent orientation changes as we're about to go into
// a long IO request, so we won't be able to access inflate resources on flash
mOriginalOrientation = getActivity().getRequestedOrientation();
getActivity().setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LOCKED);
}
@Override
public void onStop() {
super.onStop();
getActivity().setRequestedOrientation(mOriginalOrientation);
}
@Override
public void onResume() {
super.onResume();
new AsyncTask<Void, Void, Void>() {
Context mContext;
boolean mWipeMedia;
boolean mWipeExternal;
@Override
protected void onPreExecute() {
mContext = getActivity().getApplicationContext();
mWipeMedia = getArguments().getBoolean(MasterClear.EXTRA_WIPE_MEDIA);
mWipeExternal = getArguments().getBoolean(Intent.EXTRA_WIPE_EXTERNAL_STORAGE);
}
@Override
protected Void doInBackground(Void... params) {
final PersistentDataBlockManager pdbManager = (PersistentDataBlockManager)
mContext.getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE);
if (pdbManager != null) pdbManager.wipe();
return null;
}
@Override
protected void onPostExecute(Void aVoid) {
FrpDialog.this.dismissAllowingStateLoss();
doMasterClear(mContext, mWipeMedia, mWipeExternal);
}
}.execute();
}
}
public static MasterClearConfirm createInstance(boolean wipeInternal, boolean wipeExternal) {
Bundle b = new Bundle();
b.putBoolean(MasterClear.EXTRA_WIPE_MEDIA, wipeInternal);
b.putBoolean(Intent.EXTRA_WIPE_EXTERNAL_STORAGE, wipeExternal);
MasterClearConfirm fragment = new MasterClearConfirm();
fragment.setArguments(b);
return fragment;
}
/**
* The user has gone through the multiple confirmation, so now we go ahead
* and invoke the Checkin Service to reset the device to its factory-default
* state (rebooting in the process).
*/
private void onResetConfirmed() {
if (Utils.isMonkeyRunning()) {
return;
}
final PersistentDataBlockManager pdbManager = (PersistentDataBlockManager)
getActivity().getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE);
if (pdbManager != null && !pdbManager.getOemUnlockEnabled()) {
// if OEM unlock is enabled, this will be wiped during FR process.
FrpDialog.createInstance(mEraseInternal, mEraseExternal)
.show(getFragmentManager(), "frp_dialog");
} else {
doMasterClear(getActivity(), mEraseInternal, mEraseExternal);
}
}
private static void doMasterClear(Context context, boolean eraseInternal,
boolean eraseExternal) {
Intent intent = new Intent(Intent.ACTION_MASTER_CLEAR);
intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
intent.putExtra(MasterClear.EXTRA_WIPE_MEDIA, eraseInternal);
intent.putExtra(Intent.EXTRA_WIPE_EXTERNAL_STORAGE, eraseExternal);
intent.putExtra(Intent.EXTRA_REASON, REASON_MASTER_CLEAR_CONFIRM);
context.sendBroadcast(intent);
// Intent handling is asynchronous -- assume it will happen soon.
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
if (UserManager.get(getActivity()).hasUserRestriction(
UserManager.DISALLOW_FACTORY_RESET)) {
return new AlertDialog.Builder(getActivity())
.setMessage(R.string.master_clear_not_available)
.create();
}
final AlertDialog alertDialog = new AlertDialog.Builder(getActivity())
.setTitle(R.string.device_reset_title)
.setMessage(getString(R.string.factory_reset_warning_text_message))
.setNegativeButton(R.string.cancel, null)
.setPositiveButton(R.string.factory_reset_warning_text_reset_now,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
onResetConfirmed();
}
})
.create();
alertDialog.setOnShowListener(new DialogInterface.OnShowListener() {
@Override
public void onShow(DialogInterface dialog) {
AlertDialog d = (AlertDialog) dialog;
d.getButton(DialogInterface.BUTTON_POSITIVE)
.setTextColor(getResources().getColor(R.color.factory_reset_color));
}
});
return alertDialog;
}
private void setAccessibilityTitle() {
CharSequence currentTitle = getActivity().getTitle();
CharSequence confirmationMessage = getText(R.string.factory_reset_warning_text_reset_now);
if (confirmationMessage != null) {
String accessibileText = new StringBuilder(currentTitle).append(",").append(
confirmationMessage).toString();
getActivity().setTitle(Utils.createAccessibleSequence(currentTitle, accessibileText));
}
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getActivity() != null) {
getActivity().setTitle(R.string.device_reset_title);
setAccessibilityTitle();
}
Bundle args = getArguments();
mEraseInternal = args != null && args.getBoolean(MasterClear.EXTRA_WIPE_MEDIA, false);
mEraseExternal = args != null && args.getBoolean(Intent.EXTRA_WIPE_EXTERNAL_STORAGE, false);
setShowsDialog(true);
}
}
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