src/com/owncloud/android/ui/activity/FileActivity.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2011  Bartek Przybylski
   3  *   Copyright (C) 2012-2013 ownCloud Inc.
   4  *
   5  *   This program is free software: you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License version 2,
   7  *   as published by the Free Software Foundation.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18
  19 package com.owncloud.android.ui.activity;
  20
  21 import android.accounts.Account;
  22 import android.accounts.AccountManager;
  23 import android.accounts.AccountManagerCallback;
  24 import android.accounts.AccountManagerFuture;
  25 import android.accounts.OperationCanceledException;
  26 import android.content.Intent;
  27 import android.os.Bundle;
  28
  29 import com.actionbarsherlock.app.SherlockFragmentActivity;
  30 import com.owncloud.android.AccountUtils;
  31 import com.owncloud.android.Log_OC;
  32 import com.owncloud.android.authentication.AccountAuthenticator;
  33 import com.owncloud.android.datamodel.OCFile;
  34
  35 /**
  36  * Activity with common behaviour for activities handling {@link OCFile}s in ownCloud {@link Account}s .
  37  *
  38  * @author David A. Velasco
  39  */
  40 public abstract class FileActivity extends SherlockFragmentActivity {
  41
  42     public static final String EXTRA_FILE = "com.owncloud.android.ui.activity.FILE";
  43     public static final String EXTRA_ACCOUNT = "com.owncloud.android.ui.activity.ACCOUNT";
  44
  45     public static final String TAG = FileActivity.class.getSimpleName();
  46
  47
  48     /** OwnCloud {@link Account} where the main {@link OCFile} handled by the activity is located. */
  49     private Account mAccount;
  50
  51     /** Main {@link OCFile} handled by the activity.*/
  52     private OCFile mFile;
  53
  54     /** Flag to signal that the activity will is finishing to enforce the creation of an ownCloud {@link Account} */
  55     private boolean mRedirectingToSetupAccount = false;
  56
  57
  58     @Override
  59     public void onCreate(Bundle savedInstanceState) {
  60         super.onCreate(savedInstanceState);
  61
  62         /// Load of saved instance state: keep this always before initDataFromCurrentAccount()
  63         if(savedInstanceState != null) {
  64             mFile = savedInstanceState.getParcelable(FileActivity.EXTRA_FILE);
  65             mAccount = savedInstanceState.getParcelable(FileActivity.EXTRA_ACCOUNT);
  66         } else {
  67             mAccount = getIntent().getParcelableExtra(FileActivity.EXTRA_ACCOUNT);
  68             mFile = getIntent().getParcelableExtra(FileActivity.EXTRA_FILE);
  69         }
  70
  71         if (mAccount != null && AccountUtils.setCurrentOwnCloudAccount(getApplicationContext(), mAccount.name)) {
  72             onAccountChanged();
  73         }
  74     }
  75
  76
  77     @Override
  78     public void onStart() {
  79         Log_OC.e(TAG, "onStart en FileActivity");
  80         super.onStart();
  81         /// Validate account, and try to fix if wrong
  82         if (mAccount == null || !AccountUtils.setCurrentOwnCloudAccount(getApplicationContext(), mAccount.name)) {
  83             if (!AccountUtils.accountsAreSetup(getApplicationContext())) {
  84                 /// no account available: force account creation
  85                 mAccount = null;
  86                 createFirstAccount();
  87                 mRedirectingToSetupAccount = true;
  88
  89             } else {
  90                 /// get 'last current account' as default account
  91                 mAccount = AccountUtils.getCurrentOwnCloudAccount(getApplicationContext());
  92                 onAccountChanged();
  93             }
  94         }
  95     }
  96
  97
  98     /**
  99      * Launches the account creation activity. To use when no ownCloud account is available
 100      */
 101     private void createFirstAccountOldStyle() {
 102         Intent intent = new Intent(android.provider.Settings.ACTION_ADD_ACCOUNT);
 103         intent.putExtra(android.provider.Settings.EXTRA_AUTHORITIES, new String[] { AccountAuthenticator.AUTHORITY });
 104         startActivity(intent);
 105
 106         finish();
 107     }
 108
 109
 110     private void createFirstAccount() {
 111         AccountManager am = AccountManager.get(getApplicationContext());
 112         am.addAccount(AccountAuthenticator.ACCOUNT_TYPE,
 113                         AccountAuthenticator.AUTH_TOKEN_TYPE_PASSWORD,
 114                         null,
 115                         null,
 116                         this,
 117                         new AccountCreationCallback(),
 118                         null);
 119     }
 120
 121
 122     @Override
 123     protected void onSaveInstanceState(Bundle outState) {
 124         super.onSaveInstanceState(outState);
 125         outState.putParcelable(FileActivity.EXTRA_FILE, mFile);
 126         outState.putParcelable(FileActivity.EXTRA_ACCOUNT, mAccount);
 127     }
 128
 129
 130     /**
 131      * Getter for the main {@link OCFile} handled by the activity.
 132      *
 133      * @return  Main {@link OCFile} handled by the activity.
 134      */
 135     public OCFile getFile() {
 136         return mFile;
 137     }
 138
 139
 140     /**
 141      * Setter for the main {@link OCFile} handled by the activity.
 142      *
 143      * @param file  Main {@link OCFile} to be handled by the activity.
 144      */
 145     public void setFile(OCFile file) {
 146         mFile = file;
 147     }
 148
 149
 150     /**
 151      * Getter for the ownCloud {@link Account} where the main {@link OCFile} handled by the activity is located.
 152      *
 153      * @return  OwnCloud {@link Account} where the main {@link OCFile} handled by the activity is located.
 154      */
 155     public Account getAccount() {
 156         return mAccount;
 157     }
 158
 159
 160     /**
 161      * @return  'True' when the Activity is finishing to enforce the setup of a new account.
 162      */
 163     protected boolean isRedirectingToSetupAccount() {
 164         return mRedirectingToSetupAccount;
 165     }
 166
 167
 168     /**
 169      * Helper class handling a callback from the {@link AccountManager} after the creation of
 170      * a new ownCloud {@link Account} finished, successfully or not.
 171      *
 172      * At this moment, only called after the creation of the first account.
 173      *
 174      * @author David A. Velasco
 175      */
 176     public class AccountCreationCallback implements AccountManagerCallback<Bundle> {
 177
 178         @Override
 179         public void run(AccountManagerFuture<Bundle> future) {
 180             FileActivity.this.mRedirectingToSetupAccount = false;
 181             if (future != null) {
 182                 try {
 183                     Bundle result;
 184                     result = future.getResult();
 185                     String name = result.getString(AccountManager.KEY_ACCOUNT_NAME);
 186                     String type = result.getString(AccountManager.KEY_ACCOUNT_TYPE);
 187                     if (AccountUtils.setCurrentOwnCloudAccount(getApplicationContext(), name)) {
 188                         FileActivity.this.mAccount = new Account(name, type);
 189                         FileActivity.this.onAccountChanged();
 190                     }
 191                 } catch (OperationCanceledException e) {
 192                     Log_OC.e(TAG, "Account creation canceled");
 193
 194                 } catch (Exception e) {
 195                     Log_OC.e(TAG, "Account creation finished in exception: ", e);
 196                 }
 197
 198             } else {
 199                 Log_OC.e(TAG, "Account creation callback with null bundle");
 200             }
 201             if (mAccount == null) {
 202                 finish();
 203             }
 204         }
 205
 206     }
 207
 208
 209     /**
 210      *  Called when the ownCloud {@link Account} associated to the Activity was just updated.
 211      *
 212      *  Child classes must grant that state depending on the {@link Account} is updated.
 213      */
 214     protected abstract void onAccountChanged();
 215 }