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