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 java.util.ArrayList;
  22 import java.util.List;
  23
  24 import org.apache.http.protocol.HTTP;
  25
  26 import android.accounts.Account;
  27 import android.accounts.AccountManager;
  28 import android.accounts.AccountManagerCallback;
  29 import android.accounts.AccountManagerFuture;
  30 import android.accounts.OperationCanceledException;
  31 import android.content.Intent;
  32 import android.content.pm.PackageManager;
  33 import android.content.pm.ResolveInfo;
  34 import android.net.Uri;
  35 import android.os.Bundle;
  36 import android.os.Parcelable;
  37 import android.webkit.MimeTypeMap;
  38 import android.widget.Toast;
  39
  40 import com.actionbarsherlock.app.SherlockFragmentActivity;
  41 import com.owncloud.android.MainApp;
  42 import com.owncloud.android.R;
  43 import com.owncloud.android.authentication.AccountUtils;
  44 import com.owncloud.android.datamodel.OCFile;
  45
  46 import com.owncloud.android.lib.accounts.OwnCloudAccount;
  47 import com.owncloud.android.lib.network.webdav.WebdavUtils;
  48
  49 import com.owncloud.android.utils.Log_OC;
  50
  51
  52 /**
  53  * Activity with common behaviour for activities handling {@link OCFile}s in ownCloud {@link Account}s .
  54  *
  55  * @author David A. Velasco
  56  */
  57 public abstract class FileActivity extends SherlockFragmentActivity {
  58
  59     public static final String EXTRA_FILE = "com.owncloud.android.ui.activity.FILE";
  60     public static final String EXTRA_ACCOUNT = "com.owncloud.android.ui.activity.ACCOUNT";
  61     public static final String EXTRA_WAITING_TO_PREVIEW = "com.owncloud.android.ui.activity.WAITING_TO_PREVIEW";
  62     public static final String EXTRA_FROM_NOTIFICATION= "com.owncloud.android.ui.activity.FROM_NOTIFICATION";
  63
  64     public static final String TAG = FileActivity.class.getSimpleName();
  65
  66
  67     /** OwnCloud {@link Account} where the main {@link OCFile} handled by the activity is located. */
  68     private Account mAccount;
  69
  70     /** Main {@link OCFile} handled by the activity.*/
  71     private OCFile mFile;
  72
  73     /** Flag to signal that the activity will is finishing to enforce the creation of an ownCloud {@link Account} */
  74     private boolean mRedirectingToSetupAccount = false;
  75
  76     /** Flag to signal when the value of mAccount was set */
  77     private boolean mAccountWasSet;
  78
  79     /** Flag to signal when the value of mAccount was restored from a saved state */
  80     private boolean mAccountWasRestored;
  81
  82     /** Flag to signal if the activity is launched by a notification */
  83     private boolean mFromNotification;
  84
  85
  86
  87     /**
  88      * Loads the ownCloud {@link Account} and main {@link OCFile} to be handled by the instance of
  89      * the {@link FileActivity}.
  90      *
  91      * Grants that a valid ownCloud {@link Account} is associated to the instance, or that the user
  92      * is requested to create a new one.
  93      */
  94     @Override
  95     protected void onCreate(Bundle savedInstanceState) {
  96         super.onCreate(savedInstanceState);
  97         Account account;
  98         if(savedInstanceState != null) {
  99             account = savedInstanceState.getParcelable(FileActivity.EXTRA_ACCOUNT);
 100             mFile = savedInstanceState.getParcelable(FileActivity.EXTRA_FILE);
 101             mFromNotification = savedInstanceState.getBoolean(FileActivity.EXTRA_FROM_NOTIFICATION);
 102         } else {
 103             account = getIntent().getParcelableExtra(FileActivity.EXTRA_ACCOUNT);
 104             mFile = getIntent().getParcelableExtra(FileActivity.EXTRA_FILE);
 105             mFromNotification = getIntent().getBooleanExtra(FileActivity.EXTRA_FROM_NOTIFICATION, false);
 106         }
 107
 108         setAccount(account, savedInstanceState != null);
 109
 110     }
 111
 112
 113     /**
 114      *  Since ownCloud {@link Account}s can be managed from the system setting menu,
 115      *  the existence of the {@link Account} associated to the instance must be checked
 116      *  every time it is restarted.
 117      */
 118     @Override
 119     protected void onRestart() {
 120         super.onRestart();
 121         boolean validAccount = (mAccount != null && AccountUtils.setCurrentOwnCloudAccount(getApplicationContext(), mAccount.name));
 122         if (!validAccount) {
 123             swapToDefaultAccount();
 124         }
 125
 126     }
 127
 128
 129     @Override
 130     protected void onStart() {
 131         super.onStart();
 132         if (mAccountWasSet) {
 133             onAccountSet(mAccountWasRestored);
 134         }
 135     }
 136
 137
 138     /**
 139      *  Sets and validates the ownCloud {@link Account} associated to the Activity.
 140      *
 141      *  If not valid, tries to swap it for other valid and existing ownCloud {@link Account}.
 142      *
 143      *  POSTCONDITION: updates {@link #mAccountWasSet} and {@link #mAccountWasRestored}.
 144      *
 145      *  @param account          New {@link Account} to set.
 146      *  @param savedAccount     When 'true', account was retrieved from a saved instance state.
 147      */
 148     private void setAccount(Account account, boolean savedAccount) {
 149         Account oldAccount = mAccount;
 150         boolean validAccount = (account != null && AccountUtils.setCurrentOwnCloudAccount(getApplicationContext(), account.name));
 151         if (validAccount) {
 152             mAccount = account;
 153             mAccountWasSet = true;
 154             mAccountWasRestored = (savedAccount || mAccount.equals(oldAccount));
 155
 156         } else {
 157             swapToDefaultAccount();
 158         }
 159     }
 160
 161
 162     /**
 163      *  Tries to swap the current ownCloud {@link Account} for other valid and existing.
 164      *
 165      *  If no valid ownCloud {@link Account} exists, the the user is requested
 166      *  to create a new ownCloud {@link Account}.
 167      *
 168      *  POSTCONDITION: updates {@link #mAccountWasSet} and {@link #mAccountWasRestored}.
 169      *
 170      *  @return     'True' if the checked {@link Account} was valid.
 171      */
 172     private void swapToDefaultAccount() {
 173         // default to the most recently used account
 174         Account newAccount  = AccountUtils.getCurrentOwnCloudAccount(getApplicationContext());
 175         if (newAccount == null) {
 176             /// no account available: force account creation
 177             createFirstAccount();
 178             mRedirectingToSetupAccount = true;
 179             mAccountWasSet = false;
 180             mAccountWasRestored = false;
 181
 182         } else {
 183             mAccountWasSet = true;
 184             mAccountWasRestored = (newAccount.equals(mAccount));
 185             mAccount = newAccount;
 186         }
 187     }
 188
 189
 190     /**
 191      * Launches the account creation activity. To use when no ownCloud account is available
 192      */
 193     private void createFirstAccount() {
 194         AccountManager am = AccountManager.get(getApplicationContext());
 195         am.addAccount(MainApp.getAccountType(),
 196                         null,
 197                         null,
 198                         null,
 199                         this,
 200                         new AccountCreationCallback(),
 201                         null);
 202     }
 203
 204
 205     /**
 206      * {@inheritDoc}
 207      */
 208     @Override
 209     protected void onSaveInstanceState(Bundle outState) {
 210         super.onSaveInstanceState(outState);
 211         outState.putParcelable(FileActivity.EXTRA_FILE, mFile);
 212         outState.putParcelable(FileActivity.EXTRA_ACCOUNT, mAccount);
 213         outState.putBoolean(FileActivity.EXTRA_FROM_NOTIFICATION, mFromNotification);
 214     }
 215
 216
 217     /**
 218      * Getter for the main {@link OCFile} handled by the activity.
 219      *
 220      * @return  Main {@link OCFile} handled by the activity.
 221      */
 222     public OCFile getFile() {
 223         return mFile;
 224     }
 225
 226
 227     /**
 228      * Setter for the main {@link OCFile} handled by the activity.
 229      *
 230      * @param file  Main {@link OCFile} to be handled by the activity.
 231      */
 232     public void setFile(OCFile file) {
 233         mFile = file;
 234     }
 235
 236
 237     /**
 238      * Getter for the ownCloud {@link Account} where the main {@link OCFile} handled by the activity is located.
 239      *
 240      * @return  OwnCloud {@link Account} where the main {@link OCFile} handled by the activity is located.
 241      */
 242     public Account getAccount() {
 243         return mAccount;
 244     }
 245
 246     /**
 247      * @return Value of mFromNotification: True if the Activity is launched by a notification
 248      */
 249     public boolean fromNotification() {
 250         return mFromNotification;
 251     }
 252
 253     /**
 254      * @return  'True' when the Activity is finishing to enforce the setup of a new account.
 255      */
 256     protected boolean isRedirectingToSetupAccount() {
 257         return mRedirectingToSetupAccount;
 258     }
 259
 260
 261     /**
 262      *  @return 'True' if the server supports the Share API
 263      */
 264     public boolean isSharedSupported() {
 265         if (getAccount() != null) {
 266             AccountManager accountManager = AccountManager.get(this);
 267             return Boolean.parseBoolean(accountManager.getUserData(getAccount(), OwnCloudAccount.Constants.KEY_SUPPORTS_SHARE_API));
 268         }
 269         return false;
 270     }
 271
 272     /**
 273      * Helper class handling a callback from the {@link AccountManager} after the creation of
 274      * a new ownCloud {@link Account} finished, successfully or not.
 275      *
 276      * At this moment, only called after the creation of the first account.
 277      *
 278      * @author David A. Velasco
 279      */
 280     public class AccountCreationCallback implements AccountManagerCallback<Bundle> {
 281
 282         @Override
 283         public void run(AccountManagerFuture<Bundle> future) {
 284             FileActivity.this.mRedirectingToSetupAccount = false;
 285             boolean accountWasSet = false;
 286             if (future != null) {
 287                 try {
 288                     Bundle result;
 289                     result = future.getResult();
 290                     String name = result.getString(AccountManager.KEY_ACCOUNT_NAME);
 291                     String type = result.getString(AccountManager.KEY_ACCOUNT_TYPE);
 292                     if (AccountUtils.setCurrentOwnCloudAccount(getApplicationContext(), name)) {
 293                         setAccount(new Account(name, type), false);
 294                         accountWasSet = true;
 295                     }
 296                 } catch (OperationCanceledException e) {
 297                     Log_OC.d(TAG, "Account creation canceled");
 298
 299                 } catch (Exception e) {
 300                     Log_OC.e(TAG, "Account creation finished in exception: ", e);
 301                 }
 302
 303             } else {
 304                 Log_OC.e(TAG, "Account creation callback with null bundle");
 305             }
 306             if (!accountWasSet) {
 307                 moveTaskToBack(true);
 308             }
 309         }
 310
 311     }
 312
 313
 314     /**
 315      *  Called when the ownCloud {@link Account} associated to the Activity was just updated.
 316      *
 317      *  Child classes must grant that state depending on the {@link Account} is updated.
 318      */
 319     protected abstract void onAccountSet(boolean stateWasRecovered);
 320
 321
 322
 323     public void openFile(OCFile file) {
 324         if (file != null) {
 325             String storagePath = file.getStoragePath();
 326             String encodedStoragePath = WebdavUtils.encodePath(storagePath);
 327
 328             Intent intentForSavedMimeType = new Intent(Intent.ACTION_VIEW);
 329             intentForSavedMimeType.setDataAndType(Uri.parse("file://"+ encodedStoragePath), file.getMimetype());
 330             intentForSavedMimeType.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 331
 332             Intent intentForGuessedMimeType = null;
 333             if (storagePath.lastIndexOf('.') >= 0) {
 334                 String guessedMimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(storagePath.substring(storagePath.lastIndexOf('.') + 1));
 335                 if (guessedMimeType != null && !guessedMimeType.equals(file.getMimetype())) {
 336                     intentForGuessedMimeType = new Intent(Intent.ACTION_VIEW);
 337                     intentForGuessedMimeType.setDataAndType(Uri.parse("file://"+ encodedStoragePath), guessedMimeType);
 338                     intentForGuessedMimeType.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
 339                 }
 340             }
 341
 342             Intent chooserIntent = null;
 343             if (intentForGuessedMimeType != null) {
 344                 chooserIntent = Intent.createChooser(intentForGuessedMimeType, getString(R.string.actionbar_open_with));
 345             } else {
 346                 chooserIntent = Intent.createChooser(intentForSavedMimeType, getString(R.string.actionbar_open_with));
 347             }
 348
 349             startActivity(chooserIntent);
 350
 351         } else {
 352             Log_OC.wtf(TAG, "Trying to open a NULL OCFile");
 353         }
 354     }
 355
 356     /*
 357     public void shareFileWithLink(OCFile file) {
 358         if (file != null) {
 359
 360             Intent intentToShareLink = new Intent(Intent.ACTION_SEND);
 361             intentToShareLink.putExtra(Intent.EXTRA_TEXT, "https://fake.url.lolo");
 362             intentToShareLink.setType(HTTP.PLAIN_TEXT_TYPE);
 363
 364             Intent chooserIntent = Intent.createChooser(intentToShareLink, getString(R.string.action_share_file));
 365             startActivity(chooserIntent);
 366
 367         } else {
 368             Log_OC.wtf(TAG, "Trying to open a NULL OCFile");
 369         }
 370     }
 371     */
 372
 373     public void shareFileWithLink(OCFile file) {
 374         if (isSharedSupported()) {
 375             if (file != null) {
 376
 377                 // Create the Share
 378                 //CreateShareOperation createShare = new CreateShareOperation(file.getRemotePath(), ShareType.PUBLIC_LINK, "", false, "", 1);
 379                 //createShare.execute(getStorageManager(), this, this, mHandler, this);
 380
 381                 // TODO
 382                 // Get the link --> when the operation is finished
 383
 384                 String link = "https://fake.url.lolo";
 385                 Intent chooserIntent = null;
 386                 List<Intent> targetedShareIntents = new ArrayList<Intent>();
 387                 List<ResolveInfo> resInfo = getPackageManager().queryIntentActivities(createShareWithLinkIntent(link), PackageManager.MATCH_DEFAULT_ONLY);
 388                 String myPackageName = getPackageName();
 389                 if (!resInfo.isEmpty()) {
 390                     for (ResolveInfo info : resInfo) {
 391                         if (!info.activityInfo.packageName.equalsIgnoreCase(myPackageName)) {
 392                             Intent targetedShare = createTargetedShare(link, info.activityInfo.applicationInfo.packageName, info.activityInfo.name);
 393                             targetedShareIntents.add(targetedShare);
 394                         }
 395                     }
 396                 }
 397                 if (targetedShareIntents.size() > 0) {
 398                     Intent firstTargeted = targetedShareIntents.remove(0);
 399                     chooserIntent = Intent.createChooser(firstTargeted, getString(R.string.action_share_file));
 400                     chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, targetedShareIntents.toArray(new Parcelable[] {}));
 401                 } else {
 402                     // to show standard message
 403                     chooserIntent = Intent.createChooser(null, getString(R.string.action_share_file));
 404                 }
 405                 startActivity(chooserIntent);
 406
 407             } else {
 408                 Log_OC.wtf(TAG, "Trying to open a NULL OCFile");
 409             }
 410
 411         } else {
 412             // Show a Message
 413             Toast t = Toast.makeText(this, getString(R.string.share_link_no_support_share_api), Toast.LENGTH_LONG);
 414             t.show();
 415         }
 416     }
 417
 418     private Intent createTargetedShare(String link, String packageName, String className) {
 419         //Intent targetedShare = createShareWithLinkIntent(link);
 420         Intent targetedShare=new Intent(Intent.ACTION_MAIN);
 421
 422         targetedShare.addCategory(Intent.CATEGORY_LAUNCHER);
 423         targetedShare.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
 424                     Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
 425         Log_OC.e("LOLO", "className: " + className + "\npackageName: " + packageName + "\n");
 426         targetedShare.setClassName(packageName, className);
 427         return targetedShare;
 428     }
 429
 430
 431     private Intent createShareWithLinkIntent(String link) {
 432         Intent intentToShareLink = new Intent(Intent.ACTION_SEND);
 433         intentToShareLink.putExtra(Intent.EXTRA_TEXT, link);
 434         intentToShareLink.setType(HTTP.PLAIN_TEXT_TYPE);
 435         return intentToShareLink;
 436     }
 437
 438
 439 }