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 org.apache.http.protocol.HTTP;
  22
  23 import android.accounts.Account;
  24 import android.accounts.AccountManager;
  25 import android.accounts.AccountManagerCallback;
  26 import android.accounts.AccountManagerFuture;
  27 import android.accounts.OperationCanceledException;
  28 import android.support.v4.app.DialogFragment;
  29 import android.content.Intent;
  30 import android.net.Uri;
  31 import android.os.Bundle;
  32 import android.webkit.MimeTypeMap;
  33 import android.widget.Toast;
  34
  35 import com.actionbarsherlock.app.SherlockFragmentActivity;
  36 import com.owncloud.android.MainApp;
  37 import com.owncloud.android.R;
  38 import com.owncloud.android.authentication.AccountUtils;
  39 import com.owncloud.android.datamodel.OCFile;
  40
  41 import com.owncloud.android.lib.accounts.OwnCloudAccount;
  42 import com.owncloud.android.lib.network.webdav.WebdavUtils;
  43
  44 import com.owncloud.android.ui.dialog.ActivityChooserDialog;
  45 import com.owncloud.android.utils.Log_OC;
  46
  47
  48 /**
  49  * Activity with common behaviour for activities handling {@link OCFile}s in ownCloud {@link Account}s .
  50  *
  51  * @author David A. Velasco
  52  */
  53 public abstract class FileActivity extends SherlockFragmentActivity {
  54
  55     public static final String EXTRA_FILE = "com.owncloud.android.ui.activity.FILE";
  56     public static final String EXTRA_ACCOUNT = "com.owncloud.android.ui.activity.ACCOUNT";
  57     public static final String EXTRA_WAITING_TO_PREVIEW = "com.owncloud.android.ui.activity.WAITING_TO_PREVIEW";
  58     public static final String EXTRA_FROM_NOTIFICATION= "com.owncloud.android.ui.activity.FROM_NOTIFICATION";
  59
  60     public static final String TAG = FileActivity.class.getSimpleName();
  61
  62     private static final String FTAG_CHOOSER_DIALOG = "CHOOSER_DIALOG";
  63
  64
  65     /** OwnCloud {@link Account} where the main {@link OCFile} handled by the activity is located. */
  66     private Account mAccount;
  67
  68     /** Main {@link OCFile} handled by the activity.*/
  69     private OCFile mFile;
  70
  71     /** Flag to signal that the activity will is finishing to enforce the creation of an ownCloud {@link Account} */
  72     private boolean mRedirectingToSetupAccount = false;
  73
  74     /** Flag to signal when the value of mAccount was set */
  75     private boolean mAccountWasSet;
  76
  77     /** Flag to signal when the value of mAccount was restored from a saved state */
  78     private boolean mAccountWasRestored;
  79
  80     /** Flag to signal if the activity is launched by a notification */
  81     private boolean mFromNotification;
  82
  83
  84
  85     /**
  86      * Loads the ownCloud {@link Account} and main {@link OCFile} to be handled by the instance of
  87      * the {@link FileActivity}.
  88      *
  89      * Grants that a valid ownCloud {@link Account} is associated to the instance, or that the user
  90      * is requested to create a new one.
  91      */
  92     @Override
  93     protected void onCreate(Bundle savedInstanceState) {
  94         super.onCreate(savedInstanceState);
  95         Account account;
  96         if(savedInstanceState != null) {
  97             account = savedInstanceState.getParcelable(FileActivity.EXTRA_ACCOUNT);
  98             mFile = savedInstanceState.getParcelable(FileActivity.EXTRA_FILE);
  99             mFromNotification = savedInstanceState.getBoolean(FileActivity.EXTRA_FROM_NOTIFICATION);
 100         } else {
 101             account = getIntent().getParcelableExtra(FileActivity.EXTRA_ACCOUNT);
 102             mFile = getIntent().getParcelableExtra(FileActivity.EXTRA_FILE);
 103             mFromNotification = getIntent().getBooleanExtra(FileActivity.EXTRA_FROM_NOTIFICATION, false);
 104         }
 105
 106         setAccount(account, savedInstanceState != null);
 107
 108     }
 109
 110
 111     /**
 112      *  Since ownCloud {@link Account}s can be managed from the system setting menu,
 113      *  the existence of the {@link Account} associated to the instance must be checked
 114      *  every time it is restarted.
 115      */
 116     @Override
 117     protected void onRestart() {
 118         super.onRestart();
 119         boolean validAccount = (mAccount != null && AccountUtils.setCurrentOwnCloudAccount(getApplicationContext(), mAccount.name));
 120         if (!validAccount) {
 121             swapToDefaultAccount();
 122         }
 123
 124     }
 125
 126
 127     @Override
 128     protected void onStart() {
 129         super.onStart();
 130         if (mAccountWasSet) {
 131             onAccountSet(mAccountWasRestored);
 132         }
 133     }
 134
 135
 136     /**
 137      *  Sets and validates the ownCloud {@link Account} associated to the Activity.
 138      *
 139      *  If not valid, tries to swap it for other valid and existing ownCloud {@link Account}.
 140      *
 141      *  POSTCONDITION: updates {@link #mAccountWasSet} and {@link #mAccountWasRestored}.
 142      *
 143      *  @param account          New {@link Account} to set.
 144      *  @param savedAccount     When 'true', account was retrieved from a saved instance state.
 145      */
 146     private void setAccount(Account account, boolean savedAccount) {
 147         Account oldAccount = mAccount;
 148         boolean validAccount = (account != null && AccountUtils.setCurrentOwnCloudAccount(getApplicationContext(), account.name));
 149         if (validAccount) {
 150             mAccount = account;
 151             mAccountWasSet = true;
 152             mAccountWasRestored = (savedAccount || mAccount.equals(oldAccount));
 153
 154         } else {
 155             swapToDefaultAccount();
 156         }
 157     }
 158
 159
 160     /**
 161      *  Tries to swap the current ownCloud {@link Account} for other valid and existing.
 162      *
 163      *  If no valid ownCloud {@link Account} exists, the the user is requested
 164      *  to create a new ownCloud {@link Account}.
 165      *
 166      *  POSTCONDITION: updates {@link #mAccountWasSet} and {@link #mAccountWasRestored}.
 167      *
 168      *  @return     'True' if the checked {@link Account} was valid.
 169      */
 170     private void swapToDefaultAccount() {
 171         // default to the most recently used account
 172         Account newAccount  = AccountUtils.getCurrentOwnCloudAccount(getApplicationContext());
 173         if (newAccount == null) {
 174             /// no account available: force account creation
 175             createFirstAccount();
 176             mRedirectingToSetupAccount = true;
 177             mAccountWasSet = false;
 178             mAccountWasRestored = false;
 179
 180         } else {
 181             mAccountWasSet = true;
 182             mAccountWasRestored = (newAccount.equals(mAccount));
 183             mAccount = newAccount;
 184         }
 185     }
 186
 187
 188     /**
 189      * Launches the account creation activity. To use when no ownCloud account is available
 190      */
 191     private void createFirstAccount() {
 192         AccountManager am = AccountManager.get(getApplicationContext());
 193         am.addAccount(MainApp.getAccountType(),
 194                         null,
 195                         null,
 196                         null,
 197                         this,
 198                         new AccountCreationCallback(),
 199                         null);
 200     }
 201
 202
 203     /**
 204      * {@inheritDoc}
 205      */
 206     @Override
 207     protected void onSaveInstanceState(Bundle outState) {
 208         super.onSaveInstanceState(outState);
 209         outState.putParcelable(FileActivity.EXTRA_FILE, mFile);
 210         outState.putParcelable(FileActivity.EXTRA_ACCOUNT, mAccount);
 211         outState.putBoolean(FileActivity.EXTRA_FROM_NOTIFICATION, mFromNotification);
 212     }
 213
 214
 215     /**
 216      * Getter for the main {@link OCFile} handled by the activity.
 217      *
 218      * @return  Main {@link OCFile} handled by the activity.
 219      */
 220     public OCFile getFile() {
 221         return mFile;
 222     }
 223
 224
 225     /**
 226      * Setter for the main {@link OCFile} handled by the activity.
 227      *
 228      * @param file  Main {@link OCFile} to be handled by the activity.
 229      */
 230     public void setFile(OCFile file) {
 231         mFile = file;
 232     }
 233
 234
 235     /**
 236      * Getter for the ownCloud {@link Account} where the main {@link OCFile} handled by the activity is located.
 237      *
 238      * @return  OwnCloud {@link Account} where the main {@link OCFile} handled by the activity is located.
 239      */
 240     public Account getAccount() {
 241         return mAccount;
 242     }
 243
 244     /**
 245      * @return Value of mFromNotification: True if the Activity is launched by a notification
 246      */
 247     public boolean fromNotification() {
 248         return mFromNotification;
 249     }
 250
 251     /**
 252      * @return  'True' when the Activity is finishing to enforce the setup of a new account.
 253      */
 254     protected boolean isRedirectingToSetupAccount() {
 255         return mRedirectingToSetupAccount;
 256     }
 257
 258
 259     /**
 260      *  @return 'True' if the server supports the Share API
 261      */
 262     public boolean isSharedSupported() {
 263         if (getAccount() != null) {
 264             AccountManager accountManager = AccountManager.get(this);
 265             return Boolean.parseBoolean(accountManager.getUserData(getAccount(), OwnCloudAccount.Constants.KEY_SUPPORTS_SHARE_API));
 266         }
 267         return false;
 268     }
 269
 270     /**
 271      * Helper class handling a callback from the {@link AccountManager} after the creation of
 272      * a new ownCloud {@link Account} finished, successfully or not.
 273      *
 274      * At this moment, only called after the creation of the first account.
 275      *
 276      * @author David A. Velasco
 277      */
 278     public class AccountCreationCallback implements AccountManagerCallback<Bundle> {
 279
 280         @Override
 281         public void run(AccountManagerFuture<Bundle> future) {
 282             FileActivity.this.mRedirectingToSetupAccount = false;
 283             boolean accountWasSet = false;
 284             if (future != null) {
 285                 try {
 286                     Bundle result;
 287                     result = future.getResult();
 288                     String name = result.getString(AccountManager.KEY_ACCOUNT_NAME);
 289                     String type = result.getString(AccountManager.KEY_ACCOUNT_TYPE);
 290                     if (AccountUtils.setCurrentOwnCloudAccount(getApplicationContext(), name)) {
 291                         setAccount(new Account(name, type), false);
 292                         accountWasSet = true;
 293                     }
 294                 } catch (OperationCanceledException e) {
 295                     Log_OC.d(TAG, "Account creation canceled");
 296
 297                 } catch (Exception e) {
 298                     Log_OC.e(TAG, "Account creation finished in exception: ", e);
 299                 }
 300
 301             } else {
 302                 Log_OC.e(TAG, "Account creation callback with null bundle");
 303             }
 304             if (!accountWasSet) {
 305                 moveTaskToBack(true);
 306             }
 307         }
 308
 309     }
 310
 311
 312     /**
 313      *  Called when the ownCloud {@link Account} associated to the Activity was just updated.
 314      *
 315      *  Child classes must grant that state depending on the {@link Account} is updated.
 316      */
 317     protected abstract void onAccountSet(boolean stateWasRecovered);
 318
 319
 320
 321     public void openFile(OCFile file) {
 322         if (file != null) {
 323             String storagePath = file.getStoragePath();
 324             String encodedStoragePath = WebdavUtils.encodePath(storagePath);
 325
 326             Intent intentForSavedMimeType = new Intent(Intent.ACTION_VIEW);
 327             intentForSavedMimeType.setDataAndType(Uri.parse("file://"+ encodedStoragePath), file.getMimetype());
 328             intentForSavedMimeType.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 329
 330             Intent intentForGuessedMimeType = null;
 331             if (storagePath.lastIndexOf('.') >= 0) {
 332                 String guessedMimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(storagePath.substring(storagePath.lastIndexOf('.') + 1));
 333                 if (guessedMimeType != null && !guessedMimeType.equals(file.getMimetype())) {
 334                     intentForGuessedMimeType = new Intent(Intent.ACTION_VIEW);
 335                     intentForGuessedMimeType.setDataAndType(Uri.parse("file://"+ encodedStoragePath), guessedMimeType);
 336                     intentForGuessedMimeType.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 337                 }
 338             }
 339
 340             Intent chooserIntent = null;
 341             if (intentForGuessedMimeType != null) {
 342                 chooserIntent = Intent.createChooser(intentForGuessedMimeType, getString(R.string.actionbar_open_with));
 343             } else {
 344                 chooserIntent = Intent.createChooser(intentForSavedMimeType, getString(R.string.actionbar_open_with));
 345             }
 346
 347             startActivity(chooserIntent);
 348
 349         } else {
 350             Log_OC.wtf(TAG, "Trying to open a NULL OCFile");
 351         }
 352     }
 353
 354     /*
 355     public void shareFileWithLink(OCFile file) {
 356         if (file != null) {
 357
 358             Intent intentToShareLink = new Intent(Intent.ACTION_SEND);
 359             intentToShareLink.putExtra(Intent.EXTRA_TEXT, "https://fake.url.lolo");
 360             intentToShareLink.setType(HTTP.PLAIN_TEXT_TYPE);
 361
 362             Intent chooserIntent = Intent.createChooser(intentToShareLink, getString(R.string.action_share_file));
 363             startActivity(chooserIntent);
 364
 365         } else {
 366             Log_OC.wtf(TAG, "Trying to open a NULL OCFile");
 367         }
 368     }
 369     */
 370
 371     public void shareFileWithLink(OCFile file) {
 372         if (isSharedSupported()) {
 373             if (file != null) {
 374
 375                 // Create the Share - TODO integrate before or after the chooser menu
 376                 //CreateShareOperation createShare = new CreateShareOperation(file.getRemotePath(), ShareType.PUBLIC_LINK, "", false, "", 1);
 377                 //createShare.execute(getStorageManager(), this, this, mHandler, this);
 378
 379                 // TODO Get the link --> when the operation is finished
 380                 String link = "https://fake.url.lolo";
 381
 382                 Intent intent = createShareWithLinkIntent(link);
 383                 String[] packagesToExclude = new String[] { getPackageName() };
 384                 DialogFragment chooserDialog = ActivityChooserDialog.newInstance(intent, packagesToExclude);
 385                 chooserDialog.show(getSupportFragmentManager(), FTAG_CHOOSER_DIALOG);
 386
 387             } else {
 388                 Log_OC.wtf(TAG, "Trying to open a NULL OCFile");
 389             }
 390
 391         } else {
 392             // Show a Message
 393             Toast t = Toast.makeText(this, getString(R.string.share_link_no_support_share_api), Toast.LENGTH_LONG);
 394             t.show();
 395         }
 396     }
 397
 398     private Intent createShareWithLinkIntent(String link) {
 399         Intent intentToShareLink = new Intent(Intent.ACTION_SEND);
 400         intentToShareLink.putExtra(Intent.EXTRA_TEXT, link);
 401         intentToShareLink.setType(HTTP.PLAIN_TEXT_TYPE);
 402         return intentToShareLink;
 403     }
 404
 405
 406 }