1/*
2 * Copyright (C) 2016 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 */
16package com.android.emergency.edit;
17
18import static android.view.WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD;
19
20import android.app.Activity;
21import android.app.AlertDialog;
22import android.app.Dialog;
23import android.app.DialogFragment;
24import android.app.Fragment;
25import android.content.ComponentName;
26import android.content.DialogInterface;
27import android.content.SharedPreferences;
28import android.content.pm.PackageManager;
29import android.os.Bundle;
30import android.support.v14.preference.PreferenceFragment;
31import android.support.v7.preference.PreferenceManager;
32import android.util.Pair;
33import android.view.Menu;
34import android.view.MenuInflater;
35import android.view.MenuItem;
36
37import com.android.emergency.PreferenceKeys;
38import com.android.emergency.R;
39import com.android.emergency.overlay.FeatureFactory;
40import com.android.emergency.util.PreferenceUtils;
41import com.android.emergency.view.ViewInfoActivity;
42import com.android.internal.annotations.VisibleForTesting;
43import com.android.internal.logging.MetricsLogger;
44import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
45
46import java.util.ArrayList;
47
48/**
49 * Activity for editing emergency information.
50 */
51public class EditInfoActivity extends Activity {
52    static final String TAG_CLEAR_ALL_DIALOG = "clear_all_dialog";
53
54    private EditInfoFragment mEditInfoFragment;
55
56    @Override
57    protected void onCreate(Bundle savedInstanceState) {
58        super.onCreate(savedInstanceState);
59        // Protect against b/28401242 by enabling ViewInfoActivity.
60        // We used to have code that disabled/enabled it and it could have been left in disabled
61        // state.
62        PackageManager pm = getPackageManager();
63        pm.setComponentEnabledSetting(new ComponentName(this, ViewInfoActivity.class),
64                PackageManager.COMPONENT_ENABLED_STATE_DEFAULT, PackageManager.DONT_KILL_APP);
65
66        getActionBar().setDisplayHomeAsUpEnabled(true);
67
68        // We only add a new EditInfoFragment if no fragment is restored.
69        Fragment fragment = getFragmentManager().findFragmentById(android.R.id.content);
70        if (fragment == null) {
71            mEditInfoFragment = new EditInfoFragment();
72            getFragmentManager().beginTransaction()
73                .add(android.R.id.content, mEditInfoFragment)
74                .commit();
75        } else {
76            mEditInfoFragment = (EditInfoFragment) fragment;
77        }
78
79        // Show or hide the settings suggestion, depending on whether any emergency settings exist.
80        PreferenceUtils.updateSettingsSuggestionState(this);
81
82        getWindow().addFlags(FLAG_DISMISS_KEYGUARD);
83        MetricsLogger.visible(this, MetricsEvent.ACTION_EDIT_EMERGENCY_INFO);
84    }
85
86    @Override
87    public boolean onCreateOptionsMenu(Menu menu) {
88        MenuInflater inflater = getMenuInflater();
89        inflater.inflate(R.menu.edit_info_menu, menu);
90        return true;
91    }
92
93    @Override
94    public boolean onOptionsItemSelected(MenuItem item) {
95        switch (item.getItemId()) {
96            case android.R.id.home:
97                // The user asked to navigate up, which, in this case, can easily be accomplished
98                // by finishing the activity.
99                finish();
100                return true;
101
102            case R.id.action_clear_all:
103                showClearAllDialog();
104                return true;
105        }
106        return super.onOptionsItemSelected(item);
107    }
108
109    /** @return The single fragment managed by this activity. */
110    @VisibleForTesting
111    public PreferenceFragment getFragment() {
112        return mEditInfoFragment;
113    }
114
115    private void showClearAllDialog() {
116        final ClearAllDialogFragment previousFragment =
117                (ClearAllDialogFragment) getFragmentManager()
118                        .findFragmentByTag(EditInfoActivity.TAG_CLEAR_ALL_DIALOG);
119        if (previousFragment == null) {
120            DialogFragment newFragment = ClearAllDialogFragment.newInstance();
121            newFragment.show(getFragmentManager(), TAG_CLEAR_ALL_DIALOG);
122        }
123    }
124
125    private void onClearAllPreferences() {
126        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
127        for (String key : PreferenceKeys.KEYS_EDIT_EMERGENCY_INFO) {
128            sharedPreferences.edit().remove(key).commit();
129        }
130        sharedPreferences.edit().remove(PreferenceKeys.KEY_EMERGENCY_CONTACTS).commit();
131        // Show the settings suggestion again, since no emergency info is set.
132        PreferenceUtils.enableSettingsSuggestion(this);
133
134        // Refresh the UI.
135        mEditInfoFragment.reloadFromPreference();
136    }
137
138    /**
139     * Dialog shown to the user when they tap on the CLEAR ALL menu item. Using a {@link
140     * DialogFragment} takes care of screen rotation issues.
141     */
142    public static class ClearAllDialogFragment extends DialogFragment {
143
144        @Override
145        public Dialog onCreateDialog(Bundle savedInstanceState) {
146            Dialog dialog = new AlertDialog.Builder(getActivity())
147                    .setMessage(R.string.clear_all_message)
148                    .setPositiveButton(R.string.clear, new DialogInterface.OnClickListener() {
149                        @Override
150                        public void onClick(DialogInterface dialog, int which) {
151                            ((EditInfoActivity) getActivity()).onClearAllPreferences();
152                        }
153                    })
154                    .setNegativeButton(android.R.string.cancel, null)
155                    .create();
156            return dialog;
157        }
158
159        public static DialogFragment newInstance() {
160            return new ClearAllDialogFragment();
161        }
162    }
163}
164