1/*
2 * Copyright (C) 2008 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.accounts;
18
19import android.accounts.AccountManager;
20import android.accounts.AccountManagerCallback;
21import android.accounts.AccountManagerFuture;
22import android.accounts.AuthenticatorException;
23import android.accounts.OperationCanceledException;
24import android.app.Activity;
25import android.app.PendingIntent;
26import android.content.Context;
27import android.content.Intent;
28import android.os.Bundle;
29import android.os.UserManager;
30import android.util.Log;
31import android.widget.Toast;
32
33import com.android.settings.R;
34import com.android.settings.Utils;
35
36import java.io.IOException;
37
38/**
39 * Entry point Actiivty for account setup. Works as follows
40 *
41 * 1) When the other Activities launch this Activity, it launches {@link ChooseAccountActivity}
42 *    without showing anything.
43 * 2) After receiving an account type from ChooseAccountActivity, this Activity launches the
44 *    account setup specified by AccountManager.
45 * 3) After the account setup, this Activity finishes without showing anything.
46 *
47 * Note:
48 * Previously this Activity did what {@link ChooseAccountActivity} does right now, but we
49 * currently delegate the work to the other Activity. When we let this Activity do that work, users
50 * would see the list of account types when leaving this Activity, since the UI is already ready
51 * when returning from each account setup, which doesn't look good.
52 */
53public class AddAccountSettings extends Activity {
54    /**
55     *
56     */
57    private static final String KEY_ADD_CALLED = "AddAccountCalled";
58
59    /**
60     * Extra parameter to identify the caller. Applications may display a
61     * different UI if the calls is made from Settings or from a specific
62     * application.
63     */
64    private static final String KEY_CALLER_IDENTITY = "pendingIntent";
65
66    private static final String TAG = "AccountSettings";
67
68    /* package */ static final String EXTRA_SELECTED_ACCOUNT = "selected_account";
69
70    // show additional info regarding the use of a device with multiple users
71    static final String EXTRA_HAS_MULTIPLE_USERS = "hasMultipleUsers";
72
73    private static final int CHOOSE_ACCOUNT_REQUEST = 1;
74    private static final int ADD_ACCOUNT_REQUEST = 2;
75
76    private PendingIntent mPendingIntent;
77
78    private final AccountManagerCallback<Bundle> mCallback = new AccountManagerCallback<Bundle>() {
79        @Override
80        public void run(AccountManagerFuture<Bundle> future) {
81            boolean done = true;
82            try {
83                Bundle bundle = future.getResult();
84                //bundle.keySet();
85                Intent intent = (Intent) bundle.get(AccountManager.KEY_INTENT);
86                if (intent != null) {
87                    done = false;
88                    Bundle addAccountOptions = new Bundle();
89                    addAccountOptions.putParcelable(KEY_CALLER_IDENTITY, mPendingIntent);
90                    addAccountOptions.putBoolean(EXTRA_HAS_MULTIPLE_USERS,
91                            Utils.hasMultipleUsers(AddAccountSettings.this));
92                    intent.putExtras(addAccountOptions);
93                    startActivityForResult(intent, ADD_ACCOUNT_REQUEST);
94                } else {
95                    setResult(RESULT_OK);
96                    if (mPendingIntent != null) {
97                        mPendingIntent.cancel();
98                        mPendingIntent = null;
99                    }
100                }
101
102                if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "account added: " + bundle);
103            } catch (OperationCanceledException e) {
104                if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "addAccount was canceled");
105            } catch (IOException e) {
106                if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "addAccount failed: " + e);
107            } catch (AuthenticatorException e) {
108                if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "addAccount failed: " + e);
109            } finally {
110                if (done) {
111                    finish();
112                }
113            }
114        }
115    };
116
117    private boolean mAddAccountCalled = false;
118
119    @Override
120    public void onCreate(Bundle savedInstanceState) {
121        super.onCreate(savedInstanceState);
122
123        if (savedInstanceState != null) {
124            mAddAccountCalled = savedInstanceState.getBoolean(KEY_ADD_CALLED);
125            if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "restored");
126        }
127
128        final UserManager um = (UserManager) getSystemService(Context.USER_SERVICE);
129        if (um.hasUserRestriction(UserManager.DISALLOW_MODIFY_ACCOUNTS)) {
130            // We aren't allowed to add an account.
131            Toast.makeText(this, R.string.user_cannot_add_accounts_message, Toast.LENGTH_LONG)
132                    .show();
133            finish();
134            return;
135        }
136        if (mAddAccountCalled) {
137            // We already called add account - maybe the callback was lost.
138            finish();
139            return;
140        }
141        final String[] authorities =
142                getIntent().getStringArrayExtra(AccountPreferenceBase.AUTHORITIES_FILTER_KEY);
143        final String[] accountTypes =
144                getIntent().getStringArrayExtra(AccountPreferenceBase.ACCOUNT_TYPES_FILTER_KEY);
145        final Intent intent = new Intent(this, ChooseAccountActivity.class);
146        if (authorities != null) {
147            intent.putExtra(AccountPreferenceBase.AUTHORITIES_FILTER_KEY, authorities);
148        }
149        if (accountTypes != null) {
150            intent.putExtra(AccountPreferenceBase.ACCOUNT_TYPES_FILTER_KEY, accountTypes);
151        }
152        startActivityForResult(intent, CHOOSE_ACCOUNT_REQUEST);
153    }
154
155    @Override
156    public void onActivityResult(int requestCode, int resultCode, Intent data) {
157        switch (requestCode) {
158        case CHOOSE_ACCOUNT_REQUEST:
159            if (resultCode == RESULT_CANCELED) {
160                setResult(resultCode);
161                finish();
162                return;
163            }
164            // Go to account setup screen. finish() is called inside mCallback.
165            addAccount(data.getStringExtra(EXTRA_SELECTED_ACCOUNT));
166            break;
167        case ADD_ACCOUNT_REQUEST:
168            setResult(resultCode);
169            if (mPendingIntent != null) {
170                mPendingIntent.cancel();
171                mPendingIntent = null;
172            }
173            finish();
174            break;
175        }
176    }
177
178    @Override
179    protected void onSaveInstanceState(Bundle outState) {
180        super.onSaveInstanceState(outState);
181        outState.putBoolean(KEY_ADD_CALLED, mAddAccountCalled);
182        if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "saved");
183    }
184
185    private void addAccount(String accountType) {
186        Bundle addAccountOptions = new Bundle();
187        mPendingIntent = PendingIntent.getBroadcast(this, 0, new Intent(), 0);
188        addAccountOptions.putParcelable(KEY_CALLER_IDENTITY, mPendingIntent);
189        addAccountOptions.putBoolean(EXTRA_HAS_MULTIPLE_USERS, Utils.hasMultipleUsers(this));
190        AccountManager.get(this).addAccount(
191                accountType,
192                null, /* authTokenType */
193                null, /* requiredFeatures */
194                addAccountOptions,
195                null,
196                mCallback,
197                null /* handler */);
198        mAddAccountCalled  = true;
199    }
200}
201