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
17package com.android.settings;
18
19import com.android.internal.os.storage.ExternalStorageFormatter;
20import com.android.internal.widget.LockPatternUtils;
21
22import android.app.Activity;
23import android.app.Fragment;
24import android.content.Intent;
25import android.content.res.Resources;
26import android.os.Bundle;
27import android.view.LayoutInflater;
28import android.view.View;
29import android.view.ViewGroup;
30import android.widget.Button;
31import 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 */
43public 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