AddAccountSettings.java revision 263bcc8b732dbb47d3ce63904e0e05191fabbad6 
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.Settings;
35import com.android.settings.Utils;
36
37import java.io.IOException;
38
39/**
40 * Entry point Actiivty for account setup. Works as follows
41 *
42 * 1) When the other Activities launch this Activity, it launches {@link ChooseAccountActivity}
43 *    without showing anything.
44 * 2) After receiving an account type from ChooseAccountActivity, this Activity launches the
45 *    account setup specified by AccountManager.
46 * 3) After the account setup, this Activity finishes without showing anything.
47 *
48 * Note:
49 * Previously this Activity did what {@link ChooseAccountActivity} does right now, but we
50 * currently delegate the work to the other Activity. When we let this Activity do that work, users
51 * would see the list of account types when leaving this Activity, since the UI is already ready
52 * when returning from each account setup, which doesn't look good.
53 */
54public class AddAccountSettings extends Activity {
55    /**
56     *
57     */
58    private static final String KEY_ADD_CALLED = "AddAccountCalled";
59
60    /**
61     * Extra parameter to identify the caller. Applications may display a
62     * different UI if the calls is made from Settings or from a specific
63     * application.
64     */
65    private static final String KEY_CALLER_IDENTITY = "pendingIntent";
66
67    private static final String TAG = "AccountSettings";
68
69    /* package */ static final String EXTRA_SELECTED_ACCOUNT = "selected_account";
70
71    // show additional info regarding the use of a device with multiple users
72    static final String EXTRA_HAS_MULTIPLE_USERS = "hasMultipleUsers";
73
74    private static final int CHOOSE_ACCOUNT_REQUEST = 1;
75    private static final int ADD_ACCOUNT_REQUEST = 2;
76
77    private PendingIntent mPendingIntent;
78
79    private final AccountManagerCallback<Bundle> mCallback = new AccountManagerCallback<Bundle>() {
80        @Override
81        public void run(AccountManagerFuture<Bundle> future) {
82            boolean done = true;
83            try {
84                Bundle bundle = future.getResult();
85                //bundle.keySet();
86                Intent intent = (Intent) bundle.get(AccountManager.KEY_INTENT);
87                if (intent != null) {
88                    done = false;
89                    Bundle addAccountOptions = new Bundle();
90                    addAccountOptions.putParcelable(KEY_CALLER_IDENTITY, mPendingIntent);
91                    addAccountOptions.putBoolean(EXTRA_HAS_MULTIPLE_USERS,
92                            Utils.hasMultipleUsers(AddAccountSettings.this));
93                    intent.putExtras(addAccountOptions);
94                    startActivityForResult(intent, ADD_ACCOUNT_REQUEST);
95                } else {
96                    setResult(RESULT_OK);
97                    if (mPendingIntent != null) {
98                        mPendingIntent.cancel();
99                        mPendingIntent = null;
100                    }
101                }
102
103                if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "account added: " + bundle);
104            } catch (OperationCanceledException e) {
105                if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "addAccount was canceled");
106            } catch (IOException e) {
107                if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "addAccount failed: " + e);
108            } catch (AuthenticatorException e) {
109                if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "addAccount failed: " + e);
110            } finally {
111                if (done) {
112                    finish();
113                }
114            }
115        }
116    };
117
118    private boolean mAddAccountCalled = false;
119
120    @Override
121    public void onCreate(Bundle savedInstanceState) {
122        super.onCreate(savedInstanceState);
123
124        if (savedInstanceState != null) {
125            mAddAccountCalled = savedInstanceState.getBoolean(KEY_ADD_CALLED);
126            if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "restored");
127        }
128
129        final UserManager um = (UserManager) getSystemService(Context.USER_SERVICE);
130        if (um.hasUserRestriction(UserManager.DISALLOW_MODIFY_ACCOUNTS)) {
131            // We aren't allowed to add an account.
132            Toast.makeText(this, R.string.user_cannot_add_accounts_message, Toast.LENGTH_LONG)
133                    .show();
134            finish();
135            return;
136        }
137        if (mAddAccountCalled) {
138            // We already called add account - maybe the callback was lost.
139            finish();
140            return;
141        }
142        final String[] authorities =
143                getIntent().getStringArrayExtra(AccountPreferenceBase.AUTHORITIES_FILTER_KEY);
144        final String[] accountTypes =
145                getIntent().getStringArrayExtra(AccountPreferenceBase.ACCOUNT_TYPES_FILTER_KEY);
146        final Intent intent = new Intent(this, Settings.ChooseAccountActivity.class);
147        if (authorities != null) {
148            intent.putExtra(AccountPreferenceBase.AUTHORITIES_FILTER_KEY, authorities);
149        }
150        if (accountTypes != null) {
151            intent.putExtra(AccountPreferenceBase.ACCOUNT_TYPES_FILTER_KEY, accountTypes);
152        }
153        startActivityForResult(intent, CHOOSE_ACCOUNT_REQUEST);
154    }
155
156    @Override
157    public void onActivityResult(int requestCode, int resultCode, Intent data) {
158        switch (requestCode) {
159        case CHOOSE_ACCOUNT_REQUEST:
160            if (resultCode == RESULT_CANCELED) {
161                setResult(resultCode);
162                finish();
163                return;
164            }
165            // Go to account setup screen. finish() is called inside mCallback.
166            addAccount(data.getStringExtra(EXTRA_SELECTED_ACCOUNT));
167            break;
168        case ADD_ACCOUNT_REQUEST:
169            setResult(resultCode);
170            if (mPendingIntent != null) {
171                mPendingIntent.cancel();
172                mPendingIntent = null;
173            }
174            finish();
175            break;
176        }
177    }
178
179    @Override
180    protected void onSaveInstanceState(Bundle outState) {
181        super.onSaveInstanceState(outState);
182        outState.putBoolean(KEY_ADD_CALLED, mAddAccountCalled);
183        if (Log.isLoggable(TAG, Log.VERBOSE)) Log.v(TAG, "saved");
184    }
185
186    private void addAccount(String accountType) {
187        Bundle addAccountOptions = new Bundle();
188        mPendingIntent = PendingIntent.getBroadcast(this, 0, new Intent(), 0);
189        addAccountOptions.putParcelable(KEY_CALLER_IDENTITY, mPendingIntent);
190        addAccountOptions.putBoolean(EXTRA_HAS_MULTIPLE_USERS, Utils.hasMultipleUsers(this));
191        AccountManager.get(this).addAccount(
192                accountType,
193                null, /* authTokenType */
194                null, /* requiredFeatures */
195                addAccountOptions,
196                null,
197                mCallback,
198                null /* handler */);
199        mAddAccountCalled  = true;
200    }
201}
202