Home | History | Annotate | Download | only in settings 
      1 /*
      2  * Copyright (C) 2010 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.settings;
     18 
     19 import com.android.internal.os.storage.ExternalStorageFormatter;
     20 import com.android.internal.widget.LockPatternUtils;
     21 
     22 import android.app.Activity;
     23 import android.app.Fragment;
     24 import android.content.Intent;
     25 import android.content.res.Resources;
     26 import android.os.Bundle;
     27 import android.view.LayoutInflater;
     28 import android.view.View;
     29 import android.view.ViewGroup;
     30 import android.widget.Button;
     31 import android.widget.CheckBox;
     32 
     33 /**
     34  * Confirm and execute a reset of the device to a clean "just out of the box"
     35  * state.  Multiple confirmations are required: first, a general "are you sure
     36  * you want to do this?" prompt, followed by a keyguard pattern trace if the user
     37  * has defined one, followed by a final strongly-worded "THIS WILL ERASE EVERYTHING
     38  * ON THE PHONE" prompt.  If at any time the phone is allowed to go to sleep, is
     39  * locked, et cetera, then the confirmation sequence is abandoned.
     40  *
     41  * This is the confirmation screen.
     42  */
     43 public class MasterClearConfirm extends Fragment {
     44 
     45     private View mContentView;
     46     private boolean mEraseSdCard;
     47     private Button mFinalButton;
     48 
     49     /**
     50      * The user has gone through the multiple confirmation, so now we go ahead
     51      * and invoke the Checkin Service to reset the device to its factory-default
     52      * state (rebooting in the process).
     53      */
     54     private Button.OnClickListener mFinalClickListener = new Button.OnClickListener() {
     55 
     56         public void onClick(View v) {
     57             if (Utils.isMonkeyRunning()) {
     58                 return;
     59             }
     60 
     61             if (mEraseSdCard) {
     62                 Intent intent = new Intent(ExternalStorageFormatter.FORMAT_AND_FACTORY_RESET);
     63                 intent.setComponent(ExternalStorageFormatter.COMPONENT_NAME);
     64                 getActivity().startService(intent);
     65             } else {
     66                 getActivity().sendBroadcast(new Intent("android.intent.action.MASTER_CLEAR"));
     67                 // Intent handling is asynchronous -- assume it will happen soon.
     68             }
     69         }
     70     };
     71 
     72     /**
     73      * Configure the UI for the final confirmation interaction
     74      */
     75     private void establishFinalConfirmationState() {
     76         mFinalButton = (Button) mContentView.findViewById(R.id.execute_master_clear);
     77         mFinalButton.setOnClickListener(mFinalClickListener);
     78     }
     79 
     80     @Override
     81     public View onCreateView(LayoutInflater inflater, ViewGroup container,
     82             Bundle savedInstanceState) {
     83         mContentView = inflater.inflate(R.layout.master_clear_confirm, null);
     84         establishFinalConfirmationState();
     85         return mContentView;
     86     }
     87 
     88     @Override
     89     public void onCreate(Bundle savedInstanceState) {
     90         super.onCreate(savedInstanceState);
     91 
     92         Bundle args = getArguments();
     93         mEraseSdCard = args != null ? args.getBoolean(MasterClear.ERASE_EXTERNAL_EXTRA) : false;
     94     }
     95 }
     96