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