Modify kitkat document provider implementation in order to cover all 'content://...
[pub/Android/ownCloud.git] / src / com / owncloud / android / ui / activity / FileDisplayActivity.java
index 6cfa56c..2469dcf 100644 (file)
@@ -1,6 +1,6 @@
 /* ownCloud Android client application
  *   Copyright (C) 2011  Bartek Przybylski
- *   Copyright (C) 2012-2013 ownCloud Inc.
+ *   Copyright (C) 2012-2014 ownCloud Inc.
  *
  *   This program is free software: you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License version 2,
 package com.owncloud.android.ui.activity;
 
 import java.io.File;
+import java.io.IOException;
 
 import android.accounts.Account;
+import android.accounts.AccountManager;
+import android.accounts.AuthenticatorException;
+import android.accounts.OperationCanceledException;
 import android.app.AlertDialog;
 import android.app.Dialog;
 import android.app.ProgressDialog;
 import android.content.BroadcastReceiver;
 import android.content.ComponentName;
 import android.content.ContentResolver;
+import android.content.ContentUris;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
@@ -37,14 +42,17 @@ import android.content.SyncRequest;
 import android.content.res.Resources.NotFoundException;
 import android.database.Cursor;
 import android.net.Uri;
+import android.os.Build;
 import android.os.Bundle;
+import android.os.Environment;
 import android.os.IBinder;
 import android.preference.PreferenceManager;
+import android.provider.DocumentsContract;
 import android.provider.MediaStore;
+import android.provider.OpenableColumns;
 import android.support.v4.app.Fragment;
 import android.support.v4.app.FragmentManager;
 import android.support.v4.app.FragmentTransaction;
-//import android.support.v4.content.LocalBroadcastManager;
 import android.util.Log;
 import android.view.View;
 import android.view.ViewGroup;
@@ -58,27 +66,35 @@ import com.actionbarsherlock.view.Menu;
 import com.actionbarsherlock.view.MenuInflater;
 import com.actionbarsherlock.view.MenuItem;
 import com.actionbarsherlock.view.Window;
+import com.owncloud.android.BuildConfig;
 import com.owncloud.android.MainApp;
 import com.owncloud.android.R;
 import com.owncloud.android.datamodel.OCFile;
 import com.owncloud.android.files.services.FileDownloader;
-import com.owncloud.android.files.services.FileObserverService;
-import com.owncloud.android.files.services.FileUploader;
 import com.owncloud.android.files.services.FileDownloader.FileDownloaderBinder;
+import com.owncloud.android.files.services.FileUploader;
 import com.owncloud.android.files.services.FileUploader.FileUploaderBinder;
-import com.owncloud.android.operations.CreateFolderOperation;
-
+import com.owncloud.android.lib.common.OwnCloudAccount;
+import com.owncloud.android.lib.common.OwnCloudClient;
+import com.owncloud.android.lib.common.OwnCloudClientManagerFactory;
+import com.owncloud.android.lib.common.OwnCloudCredentials;
+import com.owncloud.android.lib.common.accounts.AccountUtils.AccountNotFoundException;
 import com.owncloud.android.lib.common.network.CertificateCombinedException;
 import com.owncloud.android.lib.common.operations.RemoteOperation;
 import com.owncloud.android.lib.common.operations.RemoteOperationResult;
 import com.owncloud.android.lib.common.operations.RemoteOperationResult.ResultCode;
+import com.owncloud.android.lib.common.utils.Log_OC;
+import com.owncloud.android.operations.CreateFolderOperation;
 import com.owncloud.android.operations.CreateShareOperation;
+import com.owncloud.android.operations.MoveFileOperation;
 import com.owncloud.android.operations.RemoveFileOperation;
 import com.owncloud.android.operations.RenameFileOperation;
 import com.owncloud.android.operations.SynchronizeFileOperation;
 import com.owncloud.android.operations.SynchronizeFolderOperation;
 import com.owncloud.android.operations.UnshareLinkOperation;
+import com.owncloud.android.services.observer.FileObserverService;
 import com.owncloud.android.syncadapter.FileSyncAdapter;
+import com.owncloud.android.ui.adapter.FileListListAdapter;
 import com.owncloud.android.ui.dialog.CreateFolderDialogFragment;
 import com.owncloud.android.ui.dialog.SslUntrustedCertDialog;
 import com.owncloud.android.ui.dialog.SslUntrustedCertDialog.OnSslUntrustedCertListener;
@@ -90,7 +106,7 @@ import com.owncloud.android.ui.preview.PreviewImageFragment;
 import com.owncloud.android.ui.preview.PreviewMediaFragment;
 import com.owncloud.android.ui.preview.PreviewVideoActivity;
 import com.owncloud.android.utils.DisplayUtils;
-import com.owncloud.android.utils.Log_OC;
+import com.owncloud.android.utils.ErrorMessageAdapter;
 
 
 /**
@@ -101,8 +117,9 @@ import com.owncloud.android.utils.Log_OC;
  */
 
 public class FileDisplayActivity extends HookActivity implements
-FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener {
-
+FileFragment.ContainerActivity, OnNavigationListener, 
+OnSslUntrustedCertListener, OnEnforceableRefreshListener {
+    
     private ArrayAdapter<String> mDirectories;
 
     private SyncBroadcastReceiver mSyncBroadcastReceiver;
@@ -126,6 +143,7 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
 
     private static final int ACTION_SELECT_CONTENT_FROM_APPS = 1;
     private static final int ACTION_SELECT_MULTIPLE_FILES = 2;
+    public static final int ACTION_MOVE_FILES = 3;
 
     private static final String TAG = FileDisplayActivity.class.getSimpleName();
 
@@ -139,7 +157,7 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
     private String DIALOG_UNTRUSTED_CERT;
     
     private OCFile mWaitingToSend;
-
+    
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         Log_OC.d(TAG, "onCreate() start");
@@ -154,11 +172,12 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
             requestPinCode();
         }
 
-        /// file observer
-        Intent observer_intent = new Intent(this, FileObserverService.class);
-        observer_intent.putExtra(FileObserverService.KEY_FILE_CMD, FileObserverService.CMD_INIT_OBSERVED_LIST);
-        startService(observer_intent);
-
+        /// grant that FileObserverService is watching favourite files
+        if (savedInstanceState == null) {
+            Intent initObserversIntent = FileObserverService.makeInitIntent(this);
+            startService(initObserversIntent);
+        }
+        
         /// Load of saved instance state
         if(savedInstanceState != null) {
             mWaitingToPreview = (OCFile) savedInstanceState.getParcelable(FileDisplayActivity.KEY_WAITING_TO_PREVIEW);
@@ -180,11 +199,6 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
         mRightFragmentContainer = findViewById(R.id.right_fragment_container);
         if (savedInstanceState == null) {
             createMinFragments();
-        } else {
-            Log_OC.d(TAG, "Init the secondFragment again");
-            if (mDualPane) {
-                initFragmentsWithFile();                
-            }
         }
 
         // Action bar setup
@@ -192,6 +206,8 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
         getSupportActionBar().setHomeButtonEnabled(true);       // mandatory since Android ICS, according to the official documentation
         setSupportProgressBarIndeterminateVisibility(mSyncInProgress /*|| mRefreshSharesInProgress*/);    // always AFTER setContentView(...) ; to work around bug in its implementation
         
+        setBackgroundText();
+
         Log_OC.d(TAG, "onCreate() end");
     }
     
@@ -239,7 +255,7 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
                 Log_OC.e(TAG, "Initializing Fragments in onAccountChanged..");
                 initFragmentsWithFile();
                 if (file.isFolder()) {
-                    startSyncFolderOperation(file);
+                    startSyncFolderOperation(file, false);
                 }
                 
             } else {
@@ -280,7 +296,7 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
             if (listOfFiles != null) {
                 listOfFiles.listDirectory(getCurrentDir());   
             } else {
-                Log.e(TAG, "Still have a chance to lose the initializacion of list fragment >(");
+                Log_OC.e(TAG, "Still have a chance to lose the initializacion of list fragment >(");
             }
             
             /// Second fragment
@@ -296,12 +312,12 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
             }
 
         } else {
-            Log.wtf(TAG, "initFragments() called with invalid NULLs!");
+            Log_OC.wtf(TAG, "initFragments() called with invalid NULLs!");
             if (getAccount() == null) {
-                Log.wtf(TAG, "\t account is NULL");
+                Log_OC.wtf(TAG, "\t account is NULL");
             }
             if (getFile() == null) {
-                Log.wtf(TAG, "\t file is NULL");
+                Log_OC.wtf(TAG, "\t file is NULL");
             }
         }
     }
@@ -440,6 +456,16 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
     }
 
     @Override
+    public boolean onPrepareOptionsMenu(Menu menu) {
+        if (BuildConfig.DEBUG) {
+            menu.findItem(R.id.action_logger).setVisible(true);
+        } else {
+            menu.findItem(R.id.action_logger).setVisible(false);
+        }
+        return super.onPrepareOptionsMenu(menu);
+    }
+
+    @Override
     public boolean onCreateOptionsMenu(Menu menu) {
         MenuInflater inflater = getSherlock().getMenuInflater();
         inflater.inflate(R.menu.main_menu, menu);
@@ -469,6 +495,11 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
             startActivity(settingsIntent);
             break;
         }
+        case R.id.action_logger: {
+            Intent loggerIntent = new Intent(getApplicationContext(),LogHistoryActivity.class);
+            startActivity(loggerIntent);
+            break;
+        }
         case android.R.id.home: {
             FileFragment second = getSecondFragment();
             OCFile currentDir = getCurrentDir();
@@ -479,6 +510,40 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
             }
             break;
         }
+        case R.id.action_sort: {
+            SharedPreferences appPreferences = PreferenceManager
+                    .getDefaultSharedPreferences(this);
+            
+            // Read sorting order, default to sort by name ascending
+            Integer sortOrder = appPreferences
+                    .getInt("sortOrder", FileListListAdapter.SORT_NAME);
+            
+            AlertDialog.Builder builder = new AlertDialog.Builder(this);
+            builder.setTitle(R.string.actionbar_sort_title)
+            .setSingleChoiceItems(R.array.actionbar_sortby, sortOrder , new DialogInterface.OnClickListener() {
+                public void onClick(DialogInterface dialog, int which) {
+                    
+                    switch (which){
+                    case 0:
+                        sortByName(true);
+                        break;
+                    case 1:
+                        sortByDate(false);
+                        break;
+                        
+// TODO re-enable when server-side folder size calculation is available                       
+//                    case 2:
+//                        sortBySize(false);
+//                        break;
+                    }
+                    
+                    dialog.dismiss();
+                    
+                }
+            });
+            builder.create().show();
+            break;
+        }
         default:
             retval = super.onOptionsItemSelected(item);
         }
@@ -544,6 +609,20 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
         } else if (requestCode == ACTION_SELECT_MULTIPLE_FILES && (resultCode == RESULT_OK || resultCode == UploadFilesActivity.RESULT_OK_AND_MOVE)) {
             requestMultipleUpload(data, resultCode);
 
+        } else if (requestCode == ACTION_MOVE_FILES && (resultCode == RESULT_OK || 
+                resultCode == MoveActivity.RESULT_OK_AND_MOVE)){
+
+            final Intent fData = data;
+            final int fResultCode = resultCode; 
+            getHandler().postDelayed(
+                new Runnable() {
+                    @Override
+                    public void run() {
+                        requestMoveOperation(fData, fResultCode);
+                    }
+                }, 
+                DELAY_TO_REQUEST_OPERATION_ON_ACTIVITY_RESULTS
+            );
         }
     }
 
@@ -614,7 +693,34 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
         }
         if (!remotepath.endsWith(OCFile.PATH_SEPARATOR))
             remotepath += OCFile.PATH_SEPARATOR;
-        remotepath += new File(filepath).getName();
+
+        if (filepath.startsWith("content://")) {
+            // The query, since it only applies to a single document, will only return
+            // one row. There's no need to filter, sort, or select fields, since we want
+            // all fields for one document.
+            Cursor cursor = MainApp.getAppContext().getContentResolver()
+                    .query(Uri.parse(filepath), null, null, null, null, null);
+
+            try {
+                // moveToFirst() returns false if the cursor has 0 rows.  Very handy for
+                // "if there's anything to look at, look at it" conditionals.
+                if (cursor != null && cursor.moveToFirst()) {
+
+                    // Note it's called "Display Name".  This is
+                    // provider-specific, and might not necessarily be the file name.
+                    String displayName = cursor.getString(
+                            cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME));
+                    Log.i(TAG, "Display Name: " + displayName);
+
+                    remotepath += displayName;
+                }
+            } finally {
+                cursor.close();
+            }
+
+        } else {
+            remotepath += new File(filepath).getName();
+        }
 
         i.putExtra(FileUploader.KEY_LOCAL_FILE, filepath);
         i.putExtra(FileUploader.KEY_REMOTE_FILE, remotepath);
@@ -624,6 +730,18 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
         startService(i);
     }
 
+    /**
+     * Request the operation for moving the file/folder from one path to another
+     * 
+     * @param data              Intent received
+     * @param resultCode        Result code received
+     */
+    private void requestMoveOperation(Intent data, int resultCode) {
+        OCFile folderToMoveAt = (OCFile) data.getParcelableExtra(MoveActivity.EXTRA_CURRENT_FOLDER);
+        OCFile targetFile = (OCFile) data.getParcelableExtra(MoveActivity.EXTRA_TARGET_FILE);
+        getFileOperationsHelper().moveFile(folderToMoveAt, targetFile);
+    }
+
     @Override
     public void onBackPressed() {
         OCFileListFragment listOfFiles = getListOfFilesFragment(); 
@@ -665,6 +783,9 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
     protected void onResume() {
         super.onResume();
         Log_OC.e(TAG, "onResume() start");
+        
+        // refresh list of files
+        refreshListOfFilesFragment();
 
         // Listen for sync messages
         IntentFilter syncIntentFilter = new IntentFilter(FileSyncAdapter.EVENT_FULL_SYNC_START);
@@ -693,7 +814,6 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
 
     @Override
     protected void onPause() {
-        super.onPause();
         Log_OC.e(TAG, "onPause() start");
         if (mSyncBroadcastReceiver != null) {
             unregisterReceiver(mSyncBroadcastReceiver);
@@ -709,9 +829,9 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
             mDownloadFinishReceiver = null;
         }
         
-        dismissLoadingDialog();
         
         Log_OC.d(TAG, "onPause() end");
+        super.onPause();
     }
 
 
@@ -731,23 +851,13 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
         }
         case DIALOG_CHOOSE_UPLOAD_SOURCE: {
 
-            String[] items = null;
 
             String[] allTheItems = { getString(R.string.actionbar_upload_files),
-                    getString(R.string.actionbar_upload_from_apps),
-                    getString(R.string.actionbar_failed_instant_upload) };
-
-            String[] commonItems = { getString(R.string.actionbar_upload_files),
                     getString(R.string.actionbar_upload_from_apps) };
 
-            if (InstantUploadActivity.IS_ENABLED)
-                items = allTheItems;
-            else 
-                items = commonItems;
-
             builder = new AlertDialog.Builder(this);
             builder.setTitle(R.string.actionbar_upload);
-            builder.setItems(items, new DialogInterface.OnClickListener() {
+            builder.setItems(allTheItems, new DialogInterface.OnClickListener() {
                 public void onClick(DialogInterface dialog, int item) {
                     if (item == 0) {
                         // if (!mDualPane) {
@@ -763,10 +873,6 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
                         action = action.setType("*/*").addCategory(Intent.CATEGORY_OPENABLE);
                         startActivityForResult(Intent.createChooser(action, getString(R.string.upload_chooser_title)),
                                 ACTION_SELECT_CONTENT_FROM_APPS);
-                    } else if (item == 2 && InstantUploadActivity.IS_ENABLED) {
-                        Intent action = new Intent(FileDisplayActivity.this, InstantUploadActivity.class);
-                        action.putExtra(FileUploader.KEY_ACCOUNT, FileDisplayActivity.this.getAccount());
-                        startActivity(action);
                     }
                 }
             });
@@ -793,26 +899,158 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
         return dialog;
     }
 
-
     /**
-     * Translates a content URI of an image to a physical path
-     * on the disk
+     * Translates a content URI of an content to a physical path on the disk
+     * 
      * @param uri The URI to resolve
-     * @return The path to the image or null if it could not be found
+     * @return The path to the content or null if it could not be found
      */
     public String getPath(Uri uri) {
-        String[] projection = { MediaStore.Images.Media.DATA };
-        Cursor cursor = managedQuery(uri, projection, null, null, null);
-        if (cursor != null) {
-            int column_index = cursor
-                    .getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
-            cursor.moveToFirst();
-            return cursor.getString(column_index);
-        } 
+        final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
+
+        // DocumentProvider
+        if (isKitKat && DocumentsContract.isDocumentUri(getApplicationContext(), uri)) {
+            // ExternalStorageProvider
+            if (isExternalStorageDocument(uri)) {
+                final String docId = DocumentsContract.getDocumentId(uri);
+                final String[] split = docId.split(":");
+                final String type = split[0];
+
+                if ("primary".equalsIgnoreCase(type)) {
+                    return Environment.getExternalStorageDirectory() + "/" + split[1];
+                }
+            }
+            // DownloadsProvider
+            else if (isDownloadsDocument(uri)) {
+
+                final String id = DocumentsContract.getDocumentId(uri);
+                final Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"),
+                        Long.valueOf(id));
+
+                return getDataColumn(getApplicationContext(), contentUri, null, null);
+            }
+            // MediaProvider
+            else if (isMediaDocument(uri)) {
+                final String docId = DocumentsContract.getDocumentId(uri);
+                final String[] split = docId.split(":");
+                final String type = split[0];
+
+                Uri contentUri = null;
+                if ("image".equals(type)) {
+                    contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
+                } else if ("video".equals(type)) {
+                    contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
+                } else if ("audio".equals(type)) {
+                    contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
+                }
+
+                final String selection = "_id=?";
+                final String[] selectionArgs = new String[] { split[1] };
+
+                return getDataColumn(getApplicationContext(), contentUri, selection, selectionArgs);
+            }
+            // Documents providers returned as content://...
+            else if (isAContentDocument(uri)) {
+                return uri.toString();
+            }
+        }
+        // MediaStore (and general)
+        else if ("content".equalsIgnoreCase(uri.getScheme())) {
+
+            // Return the remote address
+            if (isGooglePhotosUri(uri))
+                return uri.getLastPathSegment();
+
+            return getDataColumn(getApplicationContext(), uri, null, null);
+        }
+        // File
+        else if ("file".equalsIgnoreCase(uri.getScheme())) {
+            return uri.getPath();
+        }
         return null;
     }
 
     /**
+     * Get the value of the data column for this Uri. This is useful for
+     * MediaStore Uris, and other file-based ContentProviders.
+     * 
+     * @param context The context.
+     * @param uri The Uri to query.
+     * @param selection (Optional) Filter used in the query.
+     * @param selectionArgs (Optional) Selection arguments used in the query.
+     * @return The value of the _data column, which is typically a file path.
+     */
+    public static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {
+
+        Cursor cursor = null;
+        final String column = "_data";
+        final String[] projection = { column };
+
+        try {
+            cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null);
+            if (cursor != null && cursor.moveToFirst()) {
+
+                final int column_index = cursor.getColumnIndexOrThrow(column);
+                return cursor.getString(column_index);
+            }
+        } finally {
+            if (cursor != null)
+                cursor.close();
+        }
+        return null;
+    }
+
+    /**
+     * @param uri The Uri to check.
+     * @return Whether the Uri authority is ExternalStorageProvider.
+     */
+    public static boolean isExternalStorageDocument(Uri uri) {
+        return "com.android.externalstorage.documents".equals(uri.getAuthority());
+    }
+
+    /**
+     * @param uri The Uri to check.
+     * @return Whether the Uri authority is DownloadsProvider.
+     */
+    public static boolean isDownloadsDocument(Uri uri) {
+        return "com.android.providers.downloads.documents".equals(uri.getAuthority());
+    }
+
+    /**
+     * @param uri The Uri to check.
+     * @return Whether the Uri authority is MediaProvider.
+     */
+    public static boolean isMediaDocument(Uri uri) {
+        return "com.android.providers.media.documents".equals(uri.getAuthority());
+    }
+
+    /**
+     * @param uri The Uri to check.
+     * @return Whether the Uri authority is Google Photos.
+     */
+    public static boolean isGooglePhotosUri(Uri uri) {
+        return "com.google.android.apps.photos.content".equals(uri.getAuthority());
+    }
+    
+    /**
+     * 
+     * @param uri The Uri to check.
+     * @return Whether the Uri authority is Google Drive.
+     */
+    public static boolean isGoogleDriveDocument(Uri uri) {
+        return "com.google.android.apps.docs.storage".equals(uri.getAuthority());
+    }
+
+    /**
+     * 
+     * @param uri The Uri to check.
+     * @return Whether the Uri is from a content provider as kind "content://..."
+     */
+    public static boolean isAContentDocument(Uri uri) {
+        return uri.toString().startsWith("content://");
+    }
+
+    /**
      * Pushes a directory to the drop down list
      * @param directory to push
      * @throws IllegalArgumentException If the {@link OCFile#isFolder()} returns false.
@@ -920,10 +1158,57 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
                         
                         mSyncInProgress = (!FileSyncAdapter.EVENT_FULL_SYNC_END.equals(event) && !SynchronizeFolderOperation.EVENT_SINGLE_FOLDER_SHARES_SYNCED.equals(event));
                                 
+                        if (SynchronizeFolderOperation.EVENT_SINGLE_FOLDER_CONTENTS_SYNCED.
+                                    equals(event) &&
+                                /// TODO refactor and make common
+                                synchResult != null && !synchResult.isSuccess() &&  
+                                (synchResult.getCode() == ResultCode.UNAUTHORIZED   || 
+                                    synchResult.isIdPRedirection()                  ||
+                                    (synchResult.isException() && synchResult.getException() 
+                                            instanceof AuthenticatorException))) {
+
+                            OwnCloudClient client = null;
+                            try {
+                                OwnCloudAccount ocAccount = 
+                                        new OwnCloudAccount(getAccount(), context);
+                                client = (OwnCloudClientManagerFactory.getDefaultSingleton().
+                                        removeClientFor(ocAccount));
+                                // TODO get rid of these exceptions
+                            } catch (AccountNotFoundException e) {
+                                e.printStackTrace();
+                            } catch (AuthenticatorException e) {
+                                e.printStackTrace();
+                            } catch (OperationCanceledException e) {
+                                e.printStackTrace();
+                            } catch (IOException e) {
+                                e.printStackTrace();
+                            }
+                            
+                            if (client != null) {
+                                OwnCloudCredentials cred = client.getCredentials();
+                                if (cred != null) {
+                                    AccountManager am = AccountManager.get(context);
+                                    if (cred.authTokenExpires()) {
+                                        am.invalidateAuthToken(
+                                                getAccount().type, 
+                                                cred.getAuthToken()
+                                        );
+                                    } else {
+                                        am.clearPassword(getAccount());
+                                    }
+                                }
+                            }
+                            
+                            requestCredentialsUpdate();
+                            
                         }
-                        removeStickyBroadcast(intent);
-                        Log_OC.d(TAG, "Setting progress visibility to " + mSyncInProgress);
-                        setSupportProgressBarIndeterminateVisibility(mSyncInProgress /*|| mRefreshSharesInProgress*/);
+                    }
+                    removeStickyBroadcast(intent);
+                    Log_OC.d(TAG, "Setting progress visibility to " + mSyncInProgress);
+                    setSupportProgressBarIndeterminateVisibility(mSyncInProgress /*|| mRefreshSharesInProgress*/);
+
+                    setBackgroundText();
+                        
                 }
                 
                 if (synchResult != null) {
@@ -939,6 +1224,23 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
         }
     }
     
+    /**
+     * Show a text message on screen view for notifying user if content is
+     * loading or folder is empty
+     */
+    private void setBackgroundText() {
+        OCFileListFragment ocFileListFragment = getListOfFilesFragment();
+        if (ocFileListFragment != null) {
+            int message = R.string.file_list_loading;
+            if (!mSyncInProgress) {
+                // In case file list is empty
+                message = R.string.file_list_empty;
+            }
+            ocFileListFragment.setMessageForEmptyList(getString(message));
+        } else {
+            Log_OC.e(TAG, "OCFileListFragment is null");
+        }
+    }
 
     /**
      * Once the file upload has finished -> update view
@@ -951,53 +1253,58 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
          */
         @Override
         public void onReceive(Context context, Intent intent) {
-            String uploadedRemotePath = intent.getStringExtra(FileDownloader.EXTRA_REMOTE_PATH);
-            String accountName = intent.getStringExtra(FileUploader.ACCOUNT_NAME);
-            boolean sameAccount = getAccount() != null && accountName.equals(getAccount().name);
-            OCFile currentDir = getCurrentDir();
-            boolean isDescendant = (currentDir != null) && (uploadedRemotePath != null) && 
-                    (uploadedRemotePath.startsWith(currentDir.getRemotePath()));
-            
-            if (sameAccount && isDescendant) {
-                refreshListOfFilesFragment();
-            }
-            
-            boolean uploadWasFine = intent.getBooleanExtra(FileUploader.EXTRA_UPLOAD_RESULT, false);
-            boolean renamedInUpload = getFile().getRemotePath().
-                    equals(intent.getStringExtra(FileUploader.EXTRA_OLD_REMOTE_PATH));
-            boolean sameFile = getFile().getRemotePath().equals(uploadedRemotePath) || 
-                    renamedInUpload;
-            FileFragment details = getSecondFragment();
-            boolean detailFragmentIsShown = (details != null && 
-                    details instanceof FileDetailFragment);
-            
-            if (sameAccount && sameFile && detailFragmentIsShown) {
-                if (uploadWasFine) {
-                    setFile(getStorageManager().getFileByPath(uploadedRemotePath));
-                }
-                if (renamedInUpload) {
-                    String newName = (new File(uploadedRemotePath)).getName();
-                    Toast msg = Toast.makeText(
-                            context, 
-                            String.format(
-                                    getString(R.string.filedetails_renamed_in_upload_msg), 
-                                    newName), 
-                            Toast.LENGTH_LONG);
-                    msg.show();
+            try {
+                String uploadedRemotePath = intent.getStringExtra(FileDownloader.EXTRA_REMOTE_PATH);
+                String accountName = intent.getStringExtra(FileUploader.ACCOUNT_NAME);
+                boolean sameAccount = getAccount() != null && accountName.equals(getAccount().name);
+                OCFile currentDir = getCurrentDir();
+                boolean isDescendant = (currentDir != null) && (uploadedRemotePath != null) && 
+                        (uploadedRemotePath.startsWith(currentDir.getRemotePath()));
+                
+                if (sameAccount && isDescendant) {
+                    refreshListOfFilesFragment();
                 }
-                if (uploadWasFine || getFile().fileExists()) {
-                    ((FileDetailFragment)details).updateFileDetails(false, true);
-                } else {
-                    cleanSecondFragment();
+                
+                boolean uploadWasFine = intent.getBooleanExtra(FileUploader.EXTRA_UPLOAD_RESULT, false);
+                boolean renamedInUpload = getFile().getRemotePath().
+                        equals(intent.getStringExtra(FileUploader.EXTRA_OLD_REMOTE_PATH));
+                boolean sameFile = getFile().getRemotePath().equals(uploadedRemotePath) || 
+                        renamedInUpload;
+                FileFragment details = getSecondFragment();
+                boolean detailFragmentIsShown = (details != null && 
+                        details instanceof FileDetailFragment);
+                
+                if (sameAccount && sameFile && detailFragmentIsShown) {
+                    if (uploadWasFine) {
+                        setFile(getStorageManager().getFileByPath(uploadedRemotePath));
+                    }
+                    if (renamedInUpload) {
+                        String newName = (new File(uploadedRemotePath)).getName();
+                        Toast msg = Toast.makeText(
+                                context, 
+                                String.format(
+                                        getString(R.string.filedetails_renamed_in_upload_msg), 
+                                        newName), 
+                                Toast.LENGTH_LONG);
+                        msg.show();
+                    }
+                    if (uploadWasFine || getFile().fileExists()) {
+                        ((FileDetailFragment)details).updateFileDetails(false, true);
+                    } else {
+                        cleanSecondFragment();
+                    }
+                    
+                    // Force the preview if the file is an image
+                    if (uploadWasFine && PreviewImageFragment.canBePreviewed(getFile())) {
+                        startImagePreview(getFile());
+                    } // TODO what about other kind of previews?
                 }
                 
-                // Force the preview if the file is an image
-                if (uploadWasFine && PreviewImageFragment.canBePreviewed(getFile())) {
-                    startImagePreview(getFile());
-                } // TODO what about other kind of previews?
+            } finally {
+                if (intent != null) {
+                    removeStickyBroadcast(intent);
+                }
             }
-        
-            removeStickyBroadcast(intent);
             
         }
         
@@ -1013,23 +1320,28 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
     private class DownloadFinishReceiver extends BroadcastReceiver {
         @Override
         public void onReceive(Context context, Intent intent) {
-            boolean sameAccount = isSameAccount(context, intent);
-            String downloadedRemotePath = intent.getStringExtra(FileDownloader.EXTRA_REMOTE_PATH);
-            boolean isDescendant = isDescendant(downloadedRemotePath);
-
-            if (sameAccount && isDescendant) {
-                refreshListOfFilesFragment();
-                refreshSecondFragment(intent.getAction(), downloadedRemotePath, intent.getBooleanExtra(FileDownloader.EXTRA_DOWNLOAD_RESULT, false));
-            }
-
-            if (mWaitingToSend != null) {
-                mWaitingToSend = getStorageManager().getFileByPath(mWaitingToSend.getRemotePath()); // Update the file to send
-                if (mWaitingToSend.isDown()) { 
-                    sendDownloadedFile();
+            try {
+                boolean sameAccount = isSameAccount(context, intent);
+                String downloadedRemotePath = intent.getStringExtra(FileDownloader.EXTRA_REMOTE_PATH);
+                boolean isDescendant = isDescendant(downloadedRemotePath);
+    
+                if (sameAccount && isDescendant) {
+                    refreshListOfFilesFragment();
+                    refreshSecondFragment(intent.getAction(), downloadedRemotePath, intent.getBooleanExtra(FileDownloader.EXTRA_DOWNLOAD_RESULT, false));
+                }
+    
+                if (mWaitingToSend != null) {
+                    mWaitingToSend = getStorageManager().getFileByPath(mWaitingToSend.getRemotePath()); // Update the file to send
+                    if (mWaitingToSend.isDown()) { 
+                        sendDownloadedFile();
+                    }
                 }
-            }
             
-            removeStickyBroadcast(intent);
+            } finally {
+                if (intent != null) {
+                    removeStickyBroadcast(intent);
+                }
+            }
         }
 
         private boolean isDescendant(String downloadedRemotePath) {
@@ -1053,7 +1365,7 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
             OCFile root = getStorageManager().getFileByPath(OCFile.ROOT_PATH);
             listOfFiles.listDirectory(root);
             setFile(listOfFiles.getCurrentFile());
-            startSyncFolderOperation(root);
+            startSyncFolderOperation(root, false);
         }
         cleanSecondFragment();
     }
@@ -1068,7 +1380,7 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
             setNavigationListWithFolder(folder);
             listOfFiles.listDirectory(folder);
             setFile(listOfFiles.getCurrentFile());
-            startSyncFolderOperation(folder);
+            startSyncFolderOperation(folder, false);
         } else {
             Log_OC.e(TAG, "Unexpected null when accessing list fragment");
         }
@@ -1087,7 +1399,7 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
         cleanSecondFragment();
         
         // Sync Folder
-        startSyncFolderOperation(directory);
+        startSyncFolderOperation(directory, false);
         
     }
 
@@ -1204,7 +1516,7 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
 
     @Override
     public void onSavedCertificate() {
-        startSyncFolderOperation(getCurrentDir());                
+        startSyncFolderOperation(getCurrentDir(), false);
     }
 
 
@@ -1247,7 +1559,9 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
         } else if (operation instanceof UnshareLinkOperation) {
             onUnshareLinkOperationFinish((UnshareLinkOperation)operation, result);
         
-        } 
+        } else if (operation instanceof MoveFileOperation) {
+            onMoveFileOperationFinish((MoveFileOperation)operation, result);
+        }
         
     }
 
@@ -1297,9 +1611,12 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
      */
     private void onRemoveFileOperationFinish(RemoveFileOperation operation, RemoteOperationResult result) {
         dismissLoadingDialog();
+        
+        Toast msg = Toast.makeText(this, ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()), 
+                Toast.LENGTH_LONG); 
+        msg.show();
+        
         if (result.isSuccess()) {
-            Toast msg = Toast.makeText(this, R.string.remove_success_msg, Toast.LENGTH_LONG);
-            msg.show();
             OCFile removedFile = operation.getFile();
             FileFragment second = getSecondFragment();
             if (second != null && removedFile.equals(second.getFile())) {
@@ -1314,8 +1631,6 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
             }
             invalidateOptionsMenu();
         } else {
-            Toast msg = Toast.makeText(this, R.string.remove_fail_msg, Toast.LENGTH_LONG); 
-            msg.show();
             if (result.isSslRecoverableException()) {
                 mLastSslUntrustedServerResult = result;
                 showUntrustedCertDialog(mLastSslUntrustedServerResult);
@@ -1325,28 +1640,27 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
     
     
     /**
-     * Updates the view associated to the activity after the finish of an operation trying create a new folder
+     * Updates the view associated to the activity after the finish of an operation trying to move a 
+     * file.
      * 
-     * @param operation     Creation operation performed.
-     * @param result        Result of the creation.
+     * @param operation     Move operation performed.
+     * @param result        Result of the move operation.
      */
-    private void onCreateFolderOperationFinish(CreateFolderOperation operation, RemoteOperationResult result) {
+    private void onMoveFileOperationFinish(MoveFileOperation operation, RemoteOperationResult result) {
         if (result.isSuccess()) {
             dismissLoadingDialog();
             refreshListOfFilesFragment();
         } else {
             dismissLoadingDialog();
-            if (result.getCode() == ResultCode.INVALID_CHARACTER_IN_NAME) {
-                Toast.makeText(FileDisplayActivity.this, R.string.filename_forbidden_characters, Toast.LENGTH_LONG).show();
-            } else {
             try {
-                Toast msg = Toast.makeText(FileDisplayActivity.this, R.string.create_dir_fail_msg, Toast.LENGTH_LONG); 
+                Toast msg = Toast.makeText(FileDisplayActivity.this, 
+                        ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()), 
+                        Toast.LENGTH_LONG); 
                 msg.show();
 
             } catch (NotFoundException e) {
                 Log_OC.e(TAG, "Error while trying to show fail message " , e);
             }
-            }
         }
     }
 
@@ -1363,40 +1677,34 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
         OCFile renamedFile = operation.getFile();
         if (result.isSuccess()) {
             FileFragment details = getSecondFragment();
-            if (details != null) 
+            if (details != null) {
                 if (details instanceof FileDetailFragment && renamedFile.equals(details.getFile()) ) {
                     ((FileDetailFragment) details).updateFileDetails(renamedFile, getAccount());
                     showDetails(renamedFile);
-                    
-            } else if (details instanceof PreviewMediaFragment && renamedFile.equals(details.getFile())) {
-                ((PreviewMediaFragment) details).updateFile(renamedFile);
-                if (PreviewMediaFragment.canBePreviewed(renamedFile)) {
-                    int position = ((PreviewMediaFragment)details).getPosition();
-                    startMediaPreview(renamedFile, position, true);
-                } else {
-                    getFileOperationsHelper().openFile(renamedFile);
+
+                } else if (details instanceof PreviewMediaFragment && renamedFile.equals(details.getFile())) {
+                    ((PreviewMediaFragment) details).updateFile(renamedFile);
+                    if (PreviewMediaFragment.canBePreviewed(renamedFile)) {
+                        int position = ((PreviewMediaFragment)details).getPosition();
+                        startMediaPreview(renamedFile, position, true);
+                    } else {
+                        getFileOperationsHelper().openFile(renamedFile);
+                    }
                 }
             }
-
+            
             if (getStorageManager().getFileById(renamedFile.getParentId()).equals(getCurrentDir())) {
                 refreshListOfFilesFragment();
             }
 
         } else {
-            if (result.getCode().equals(ResultCode.INVALID_LOCAL_FILE_NAME)) {
-                Toast msg = Toast.makeText(this, R.string.rename_local_fail_msg, Toast.LENGTH_LONG); 
-                msg.show();
-                // TODO throw again the new rename dialog
-            } if (result.getCode().equals(ResultCode.INVALID_CHARACTER_IN_NAME)) {
-                Toast msg = Toast.makeText(this, R.string.filename_forbidden_characters, Toast.LENGTH_LONG); 
-                msg.show();
-            } else {
-                Toast msg = Toast.makeText(this, R.string.rename_server_fail_msg, Toast.LENGTH_LONG); 
-                msg.show();
-                if (result.isSslRecoverableException()) {
-                    mLastSslUntrustedServerResult = result;
-                    showUntrustedCertDialog(mLastSslUntrustedServerResult);
-                }
+            Toast msg = Toast.makeText(this, ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()), 
+                    Toast.LENGTH_LONG); 
+            msg.show();
+            
+            if (result.isSslRecoverableException()) {
+                mLastSslUntrustedServerResult = result;
+                showUntrustedCertDialog(mLastSslUntrustedServerResult);
             }
         }
     }
@@ -1418,26 +1726,57 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
                 onTransferStateChanged(syncedFile, true, true);
                 
             } else {
-                Toast msg = Toast.makeText(this, R.string.sync_file_nothing_to_do_msg, Toast.LENGTH_LONG); 
+                Toast msg = Toast.makeText(this, ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()), 
+                        Toast.LENGTH_LONG); 
                 msg.show();
             }
         }
     }
 
+    /**
+     * Updates the view associated to the activity after the finish of an operation trying create a new folder
+     * 
+     * @param operation     Creation operation performed.
+     * @param result        Result of the creation.
+     */
+    private void onCreateFolderOperationFinish(CreateFolderOperation operation, RemoteOperationResult result) {
+        if (result.isSuccess()) {
+            dismissLoadingDialog();
+            refreshListOfFilesFragment();
+        } else {
+            dismissLoadingDialog();
+            try {
+                Toast msg = Toast.makeText(FileDisplayActivity.this, 
+                        ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()), 
+                        Toast.LENGTH_LONG); 
+                msg.show();
+
+            } catch (NotFoundException e) {
+                Log_OC.e(TAG, "Error while trying to show fail message " , e);
+            }
+        }
+    }
+
     
     /**
      * {@inheritDoc}
      */
     @Override
     public void onTransferStateChanged(OCFile file, boolean downloading, boolean uploading) {
+        refreshListOfFilesFragment();
         FileFragment details = getSecondFragment();
         if (details != null && details instanceof FileDetailFragment && file.equals(details.getFile()) ) {
             if (downloading || uploading) {
                 ((FileDetailFragment)details).updateFileDetails(file, getAccount());
             } else {
-                ((FileDetailFragment)details).updateFileDetails(false, true);
+                if (!file.fileExists()) {
+                    cleanSecondFragment();
+                } else {
+                    ((FileDetailFragment)details).updateFileDetails(false, true);
+                }
             }
         }
+            
     }
 
 
@@ -1465,7 +1804,7 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
         return null;
     }
     
-    public void startSyncFolderOperation(OCFile folder) {
+    public void startSyncFolderOperation(OCFile folder, boolean ignoreETag) {
         long currentSyncTime = System.currentTimeMillis(); 
         
         mSyncInProgress = true;
@@ -1475,13 +1814,16 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
                                                                         currentSyncTime, 
                                                                         false,
                                                                         getFileOperationsHelper().isSharedSupported(),
+                                                                        ignoreETag,
                                                                         getStorageManager(), 
                                                                         getAccount(), 
                                                                         getApplicationContext()
                                                                       );
-        synchFolderOp.execute(getAccount(), this, null, null, this);
+        synchFolderOp.execute(getAccount(), this, null, null);
         
         setSupportProgressBarIndeterminateVisibility(true);
+
+        setBackgroundText();
     }
 
     /**
@@ -1535,6 +1877,7 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
         showDetailsIntent.putExtra(EXTRA_FILE, file);
         showDetailsIntent.putExtra(EXTRA_ACCOUNT, getAccount());
         startActivity(showDetailsIntent);
+        
     }
 
     /**
@@ -1571,22 +1914,49 @@ FileFragment.ContainerActivity, OnNavigationListener, OnSslUntrustedCertListener
 
 
     public void cancelTransference(OCFile file) {
-        Account account = getAccount();
-        if (mDownloaderBinder != null && mDownloaderBinder.isDownloading(account, file)) {
-            mDownloaderBinder.cancel(account, file);
-            refreshListOfFilesFragment();
-            onTransferStateChanged(file, false, false);
+        getFileOperationsHelper().cancelTransference(file);
+        if (mWaitingToPreview != null && 
+                mWaitingToPreview.getRemotePath().equals(file.getRemotePath())) {
+            mWaitingToPreview = null;
+        }
+        if (mWaitingToSend != null &&
+                mWaitingToSend.getRemotePath().equals(file.getRemotePath())) {
+            mWaitingToSend = null;
+        }
+        onTransferStateChanged(file, false, false);
+    }
 
-        } else if (mUploaderBinder != null && mUploaderBinder.isUploading(account, file)) {
-            mUploaderBinder.cancel(account, file);
-            refreshListOfFilesFragment();
-            if (!file.fileExists()) {
-                cleanSecondFragment();
-                
-            } else {
-                onTransferStateChanged(file, false, false);
+    @Override
+    public void onRefresh(boolean ignoreETag) {
+        refreshList(ignoreETag);
+    }
+
+    @Override
+    public void onRefresh() {
+        refreshList(true);
+    }
+
+    private void refreshList(boolean ignoreETag) {
+        OCFileListFragment listOfFiles = getListOfFilesFragment();
+        if (listOfFiles != null) {
+            OCFile folder = listOfFiles.getCurrentFile();
+            if (folder != null) {
+                /*mFile = mContainerActivity.getStorageManager().getFileById(mFile.getFileId());
+                listDirectory(mFile);*/
+                startSyncFolderOperation(folder, ignoreETag);
             }
         }
     }
-    
+
+    private void sortByDate(boolean ascending){
+        getListOfFilesFragment().sortByDate(ascending);
+    }
+
+    private void sortBySize(boolean ascending){
+        getListOfFilesFragment().sortBySize(ascending);
+    }
+
+    private void sortByName(boolean ascending){
+        getListOfFilesFragment().sortByName(ascending);
+    }
 }