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Merge branch 'material_buttons' of https://github.com/owncloud/android into material_fab
[pub/Android/ownCloud.git] / src / com / owncloud / android / ui / activity / FileDisplayActivity.java
diff --git a/src/com/owncloud/android/ui/activity/FileDisplayActivity.java b/src/com/owncloud/android/ui/activity/FileDisplayActivity.java
index 240d146..7a8f2a5 100644 (file)
--- a/src/com/owncloud/android/ui/activity/FileDisplayActivity.java
+++ b/src/com/owncloud/android/ui/activity/FileDisplayActivity.java
@@ -79,13 +79,14 @@ import com.owncloud.android.lib.common.operations.RemoteOperationResult.ResultCo
 import com.owncloud.android.lib.common.utils.Log_OC;
 import com.owncloud.android.operations.CopyFileOperation;
 import com.owncloud.android.operations.CreateFolderOperation;
 import com.owncloud.android.lib.common.utils.Log_OC;
 import com.owncloud.android.operations.CopyFileOperation;
 import com.owncloud.android.operations.CreateFolderOperation;
-import com.owncloud.android.operations.CreateShareOperation;
+import com.owncloud.android.operations.CreateShareViaLinkOperation;
+import com.owncloud.android.operations.CreateShareWithShareeOperation;
 import com.owncloud.android.operations.MoveFileOperation;
 import com.owncloud.android.operations.RefreshFolderOperation;
 import com.owncloud.android.operations.RemoveFileOperation;
 import com.owncloud.android.operations.RenameFileOperation;
 import com.owncloud.android.operations.SynchronizeFileOperation;
 import com.owncloud.android.operations.MoveFileOperation;
 import com.owncloud.android.operations.RefreshFolderOperation;
 import com.owncloud.android.operations.RemoveFileOperation;
 import com.owncloud.android.operations.RenameFileOperation;
 import com.owncloud.android.operations.SynchronizeFileOperation;
-import com.owncloud.android.operations.UnshareLinkOperation;
+import com.owncloud.android.operations.UnshareOperation;
 import com.owncloud.android.services.observer.FileObserverService;
 import com.owncloud.android.syncadapter.FileSyncAdapter;
 import com.owncloud.android.ui.dialog.ConfirmationDialogFragment;
 import com.owncloud.android.services.observer.FileObserverService;
 import com.owncloud.android.syncadapter.FileSyncAdapter;
 import com.owncloud.android.ui.dialog.ConfirmationDialogFragment;
@@ -116,8 +117,6 @@ public class FileDisplayActivity extends HookActivity
         implements FileFragment.ContainerActivity,
         OnSslUntrustedCertListener, OnEnforceableRefreshListener {
 
         implements FileFragment.ContainerActivity,
         OnSslUntrustedCertListener, OnEnforceableRefreshListener {
 
-
-
     private SyncBroadcastReceiver mSyncBroadcastReceiver;
     private UploadFinishReceiver mUploadFinishReceiver;
     private DownloadFinishReceiver mDownloadFinishReceiver;
     private SyncBroadcastReceiver mSyncBroadcastReceiver;
     private UploadFinishReceiver mUploadFinishReceiver;
     private DownloadFinishReceiver mDownloadFinishReceiver;
@@ -149,7 +148,7 @@ public class FileDisplayActivity extends HookActivity
     private boolean mSyncInProgress = false;
 
     private static String DIALOG_UNTRUSTED_CERT = "DIALOG_UNTRUSTED_CERT";
     private boolean mSyncInProgress = false;
 
     private static String DIALOG_UNTRUSTED_CERT = "DIALOG_UNTRUSTED_CERT";
-    private static String DIALOG_CREATE_FOLDER = "DIALOG_CREATE_FOLDER";
+    public static String DIALOG_CREATE_FOLDER = "DIALOG_CREATE_FOLDER";
     private static String DIALOG_UPLOAD_SOURCE = "DIALOG_UPLOAD_SOURCE";
     private static String DIALOG_CERT_NOT_SAVED = "DIALOG_CERT_NOT_SAVED";
 
     private static String DIALOG_UPLOAD_SOURCE = "DIALOG_UPLOAD_SOURCE";
     private static String DIALOG_CERT_NOT_SAVED = "DIALOG_CERT_NOT_SAVED";
 
@@ -227,6 +226,13 @@ public class FileDisplayActivity extends HookActivity
     }
 
     @Override
     }
 
     @Override
+    protected void onStop() {
+        Log_OC.v(TAG, "onStop() start");
+        super.onStop();
+        Log_OC.v(TAG, "onStop() end");
+    }
+
+    @Override
     protected void onDestroy() {
         Log_OC.v(TAG, "onDestroy() start");
         super.onDestroy();
     protected void onDestroy() {
         Log_OC.v(TAG, "onDestroy() start");
         super.onDestroy();
@@ -265,12 +271,7 @@ public class FileDisplayActivity extends HookActivity
             setFile(file);
 
             if (mAccountWasSet) {
             setFile(file);
 
             if (mAccountWasSet) {
-                RelativeLayout navigationDrawerLayout = (RelativeLayout) findViewById(R.id.left_drawer);
-                if (navigationDrawerLayout != null && getAccount() != null) {
-                    TextView username = (TextView) navigationDrawerLayout.findViewById(R.id.drawer_username);
-                    int lastAtPos = getAccount().name.lastIndexOf("@");
-                    username.setText(getAccount().name.substring(0, lastAtPos));
-                }
+                setUsernameInDrawer((RelativeLayout) findViewById(R.id.left_drawer), getAccount());
             }
 
             if (!stateWasRecovered) {
             }
 
             if (!stateWasRecovered) {
@@ -485,8 +486,6 @@ public class FileDisplayActivity extends HookActivity
     @Override
     public boolean onPrepareOptionsMenu(Menu menu) {
         boolean drawerOpen = mDrawerLayout.isDrawerOpen(GravityCompat.START);
     @Override
     public boolean onPrepareOptionsMenu(Menu menu) {
         boolean drawerOpen = mDrawerLayout.isDrawerOpen(GravityCompat.START);
-        menu.findItem(R.id.action_upload).setVisible(!drawerOpen);
-        menu.findItem(R.id.action_create_dir).setVisible(!drawerOpen);
         menu.findItem(R.id.action_sort).setVisible(!drawerOpen);
         menu.findItem(R.id.action_sync_account).setVisible(!drawerOpen);
         
         menu.findItem(R.id.action_sort).setVisible(!drawerOpen);
         menu.findItem(R.id.action_sync_account).setVisible(!drawerOpen);
         
@@ -497,6 +496,7 @@ public class FileDisplayActivity extends HookActivity
     public boolean onCreateOptionsMenu(Menu menu) {
         MenuInflater inflater = getMenuInflater();
         inflater.inflate(R.menu.main_menu, menu);
     public boolean onCreateOptionsMenu(Menu menu) {
         MenuInflater inflater = getMenuInflater();
         inflater.inflate(R.menu.main_menu, menu);
+        menu.findItem(R.id.action_create_dir).setVisible(false);
         return true;
     }
     
         return true;
     }
     
@@ -505,23 +505,10 @@ public class FileDisplayActivity extends HookActivity
     public boolean onOptionsItemSelected(MenuItem item) {
         boolean retval = true;
         switch (item.getItemId()) {
     public boolean onOptionsItemSelected(MenuItem item) {
         boolean retval = true;
         switch (item.getItemId()) {
-            case R.id.action_create_dir: {
-                CreateFolderDialogFragment dialog =
-                        CreateFolderDialogFragment.newInstance(getCurrentDir());
-                dialog.show(getSupportFragmentManager(), DIALOG_CREATE_FOLDER);
-                break;
-            }
-
             case R.id.action_sync_account: {
                 startSynchronization();
                 break;
             }
             case R.id.action_sync_account: {
                 startSynchronization();
                 break;
             }
-            case R.id.action_upload: {
-                UploadSourceDialogFragment dialog =
-                        UploadSourceDialogFragment.newInstance(getAccount());
-                dialog.show(getSupportFragmentManager(), DIALOG_UPLOAD_SOURCE);
-                break;
-            }
             case android.R.id.home: {
                 FileFragment second = getSecondFragment();
                 OCFile currentDir = getCurrentDir();
             case android.R.id.home: {
                 FileFragment second = getSecondFragment();
                 OCFile currentDir = getCurrentDir();
@@ -570,6 +557,34 @@ public class FileDisplayActivity extends HookActivity
         return retval;
     }
 
         return retval;
     }
 
+    public void createFolder() {
+        CreateFolderDialogFragment dialog =
+                CreateFolderDialogFragment.newInstance(getCurrentDir());
+        dialog.show(getSupportFragmentManager(), DIALOG_CREATE_FOLDER);
+    }
+
+    public void uploadLocalFilesSelected() {
+        Intent action = new Intent(this, UploadFilesActivity.class);
+        action.putExtra(
+                UploadFilesActivity.EXTRA_ACCOUNT,
+                getAccount()
+        );
+        startActivityForResult(action, ACTION_SELECT_MULTIPLE_FILES);
+    }
+
+    public void uploadFromOtherAppsSelected() {
+        Intent action = new Intent(Intent.ACTION_GET_CONTENT);
+        action = action.setType("*/*").addCategory(Intent.CATEGORY_OPENABLE);
+        //Intent.EXTRA_ALLOW_MULTIPLE is only supported on api level 18+, Jelly Bean
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
+            action.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
+        }
+        startActivityForResult(
+                Intent.createChooser(action, getString(R.string.upload_chooser_title)),
+                ACTION_SELECT_CONTENT_FROM_APPS
+        );
+    }
+
     private void startSynchronization() {
         Log_OC.d(TAG, "Got to start sync");
         if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.KITKAT) {
     private void startSynchronization() {
         Log_OC.d(TAG, "Got to start sync");
         if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.KITKAT) {
@@ -636,7 +651,7 @@ public class FileDisplayActivity extends HookActivity
                             requestMoveOperation(fData, fResultCode);
                         }
                     },
                             requestMoveOperation(fData, fResultCode);
                         }
                     },
-                    DELAY_TO_REQUEST_OPERATION_ON_ACTIVITY_RESULTS
+                    DELAY_TO_REQUEST_OPERATIONS_LATER
             );
 
         } else if (requestCode == ACTION_COPY_FILES && resultCode == RESULT_OK) {
             );
 
         } else if (requestCode == ACTION_COPY_FILES && resultCode == RESULT_OK) {
@@ -650,7 +665,7 @@ public class FileDisplayActivity extends HookActivity
                             requestCopyOperation(fData, fResultCode);
                         }
                     },
                             requestCopyOperation(fData, fResultCode);
                         }
                     },
-                    DELAY_TO_REQUEST_OPERATION_ON_ACTIVITY_RESULTS
+                    DELAY_TO_REQUEST_OPERATIONS_LATER
             );
 
         } else {
             );
 
         } else {
@@ -782,7 +797,26 @@ public class FileDisplayActivity extends HookActivity
 
     @Override
     public void onBackPressed() {
 
     @Override
     public void onBackPressed() {
-        if (!isDrawerOpen()){
+        boolean isFabOpen = isFabOpen();
+        boolean isDrawerOpen = isDrawerOpen();
+
+        /*
+         * BackPressed priority/hierarchy:
+         *    1. close drawer if opened
+         *    2. close FAB if open (only if drawer isn't open)
+         *    3. navigate up (only if drawer and FAB aren't open)
+         */
+        if(isDrawerOpen && isFabOpen) {
+            // close drawer first
+            super.onBackPressed();
+        } else if(isDrawerOpen && !isFabOpen) {
+            // close drawer
+            super.onBackPressed();
+        } else if (!isDrawerOpen && isFabOpen) {
+            // close fab
+            getListOfFilesFragment().getFabMain().collapse();
+        } else {
+            // all closed
             OCFileListFragment listOfFiles = getListOfFilesFragment();
             if (mDualPane || getSecondFragment() == null) {
                 OCFile currentDir = getCurrentDir();
             OCFileListFragment listOfFiles = getListOfFilesFragment();
             if (mDualPane || getSecondFragment() == null) {
                 OCFile currentDir = getCurrentDir();
@@ -798,8 +832,6 @@ public class FileDisplayActivity extends HookActivity
                 setFile(listOfFiles.getCurrentFile());
             }
             cleanSecondFragment();
                 setFile(listOfFiles.getCurrentFile());
             }
             cleanSecondFragment();
-        } else {
-            super.onBackPressed();
         }
     }
 
         }
     }
 
@@ -878,6 +910,14 @@ public class FileDisplayActivity extends HookActivity
         Log_OC.v(TAG, "onPause() end");
     }
 
         Log_OC.v(TAG, "onPause() end");
     }
 
+    public boolean isFabOpen() {
+        if(getListOfFilesFragment() != null && getListOfFilesFragment().getFabMain() != null && getListOfFilesFragment().getFabMain().isExpanded()) {
+            return true;
+        } else {
+            return false;
+        }
+    }
+
 
     private class SyncBroadcastReceiver extends BroadcastReceiver {
 
 
     private class SyncBroadcastReceiver extends BroadcastReceiver {
 
@@ -983,6 +1023,7 @@ public class FileDisplayActivity extends HookActivity
                             }
 
                         }
                             }
 
                         }
+
                     }
                     removeStickyBroadcast(intent);
                     Log_OC.d(TAG, "Setting progress visibility to " + mSyncInProgress);
                     }
                     removeStickyBroadcast(intent);
                     Log_OC.d(TAG, "Setting progress visibility to " + mSyncInProgress);
@@ -1048,7 +1089,11 @@ public class FileDisplayActivity extends HookActivity
                         (uploadedRemotePath.startsWith(currentDir.getRemotePath()));
 
                 if (sameAccount && isDescendant) {
                         (uploadedRemotePath.startsWith(currentDir.getRemotePath()));
 
                 if (sameAccount && isDescendant) {
-                    refreshListOfFilesFragment();
+                    String linkedToRemotePath =
+                            intent.getStringExtra(FileDownloader.EXTRA_LINKED_TO_PATH);
+                    if (linkedToRemotePath == null || isAscendant(linkedToRemotePath)) {
+                        refreshListOfFilesFragment();
+                    }
                 }
 
                 boolean uploadWasFine = intent.getBooleanExtra(FileUploader.EXTRA_UPLOAD_RESULT,
                 }
 
                 boolean uploadWasFine = intent.getBooleanExtra(FileUploader.EXTRA_UPLOAD_RESULT,
@@ -1101,6 +1146,16 @@ public class FileDisplayActivity extends HookActivity
 
         }
 
 
         }
 
+        // TODO refactor this receiver, and maybe DownloadFinishReceiver; this method is duplicated :S
+        private boolean isAscendant(String linkedToRemotePath) {
+            OCFile currentDir = getCurrentDir();
+            return (
+                    currentDir != null &&
+                            currentDir.getRemotePath().startsWith(linkedToRemotePath)
+            );
+        }
+
+
     }
 
 
     }
 
 
@@ -1112,11 +1167,10 @@ public class FileDisplayActivity extends HookActivity
      */
     private class DownloadFinishReceiver extends BroadcastReceiver {
 
      */
     private class DownloadFinishReceiver extends BroadcastReceiver {
 
-        //int refreshCounter = 0;
         @Override
         public void onReceive(Context context, Intent intent) {
             try {
         @Override
         public void onReceive(Context context, Intent intent) {
             try {
-                boolean sameAccount = isSameAccount(context, intent);
+                boolean sameAccount = isSameAccount(intent);
                 String downloadedRemotePath =
                         intent.getStringExtra(FileDownloader.EXTRA_REMOTE_PATH);
                 boolean isDescendant = isDescendant(downloadedRemotePath);
                 String downloadedRemotePath =
                         intent.getStringExtra(FileDownloader.EXTRA_REMOTE_PATH);
                 boolean isDescendant = isDescendant(downloadedRemotePath);
@@ -1125,7 +1179,6 @@ public class FileDisplayActivity extends HookActivity
                     String linkedToRemotePath =
                             intent.getStringExtra(FileDownloader.EXTRA_LINKED_TO_PATH);
                     if (linkedToRemotePath == null || isAscendant(linkedToRemotePath)) {
                     String linkedToRemotePath =
                             intent.getStringExtra(FileDownloader.EXTRA_LINKED_TO_PATH);
                     if (linkedToRemotePath == null || isAscendant(linkedToRemotePath)) {
-                        //Log_OC.v(TAG, "refresh #" + ++refreshCounter);
                         refreshListOfFilesFragment();
                     }
                     refreshSecondFragment(
                         refreshListOfFilesFragment();
                     }
                     refreshSecondFragment(
@@ -1167,7 +1220,7 @@ public class FileDisplayActivity extends HookActivity
             );
         }
 
             );
         }
 
-        private boolean isSameAccount(Context context, Intent intent) {
+        private boolean isSameAccount(Intent intent) {
             String accountName = intent.getStringExtra(FileDownloader.ACCOUNT_NAME);
             return (accountName != null && getAccount() != null &&
                     accountName.equals(getAccount().name));
             String accountName = intent.getStringExtra(FileDownloader.ACCOUNT_NAME);
             return (accountName != null && getAccount() != null &&
                     accountName.equals(getAccount().name));
@@ -1334,11 +1387,14 @@ public class FileDisplayActivity extends HookActivity
         } else if (operation instanceof CreateFolderOperation) {
             onCreateFolderOperationFinish((CreateFolderOperation) operation, result);
 
         } else if (operation instanceof CreateFolderOperation) {
             onCreateFolderOperationFinish((CreateFolderOperation) operation, result);
 
-        } else if (operation instanceof CreateShareOperation) {
-            onCreateShareOperationFinish((CreateShareOperation) operation, result);
+        } else if (operation instanceof CreateShareViaLinkOperation ||
+                    operation instanceof CreateShareWithShareeOperation ) {
+
+            refreshShowDetails();
+            refreshListOfFilesFragment();
 
 
-        } else if (operation instanceof UnshareLinkOperation) {
-            onUnshareLinkOperationFinish((UnshareLinkOperation) operation, result);
+        } else if (operation instanceof UnshareOperation) {
+            onUnshareLinkOperationFinish((UnshareOperation) operation, result);
 
         } else if (operation instanceof MoveFileOperation) {
             onMoveFileOperationFinish((MoveFileOperation) operation, result);
 
         } else if (operation instanceof MoveFileOperation) {
             onMoveFileOperationFinish((MoveFileOperation) operation, result);
@@ -1348,15 +1404,8 @@ public class FileDisplayActivity extends HookActivity
         }
 
     }
         }
 
     }
-    private void onCreateShareOperationFinish(CreateShareOperation operation,
-                                              RemoteOperationResult result) {
-        if (result.isSuccess()) {
-            refreshShowDetails();
-            refreshListOfFilesFragment();
-        }
-    }
 
 
-    private void onUnshareLinkOperationFinish(UnshareLinkOperation operation,
+    private void onUnshareLinkOperationFinish(UnshareOperation operation,
                                               RemoteOperationResult result) {
         if (result.isSuccess()) {
             refreshShowDetails();
                                               RemoteOperationResult result) {
         if (result.isSuccess()) {
             refreshShowDetails();
@@ -1397,8 +1446,6 @@ public class FileDisplayActivity extends HookActivity
      */
     private void onRemoveFileOperationFinish(RemoveFileOperation operation,
                                              RemoteOperationResult result) {
      */
     private void onRemoveFileOperationFinish(RemoveFileOperation operation,
                                              RemoteOperationResult result) {
-        dismissLoadingDialog();
-
         Toast msg = Toast.makeText(this,
                 ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()),
                 Toast.LENGTH_LONG);
         Toast msg = Toast.makeText(this,
                 ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()),
                 Toast.LENGTH_LONG);
@@ -1437,10 +1484,8 @@ public class FileDisplayActivity extends HookActivity
     private void onMoveFileOperationFinish(MoveFileOperation operation,
                                            RemoteOperationResult result) {
         if (result.isSuccess()) {
     private void onMoveFileOperationFinish(MoveFileOperation operation,
                                            RemoteOperationResult result) {
         if (result.isSuccess()) {
-            dismissLoadingDialog();
             refreshListOfFilesFragment();
         } else {
             refreshListOfFilesFragment();
         } else {
-            dismissLoadingDialog();
             try {
                 Toast msg = Toast.makeText(FileDisplayActivity.this,
                         ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()),
             try {
                 Toast msg = Toast.makeText(FileDisplayActivity.this,
                         ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()),
@@ -1462,10 +1507,8 @@ public class FileDisplayActivity extends HookActivity
      */
     private void onCopyFileOperationFinish(CopyFileOperation operation, RemoteOperationResult result) {
         if (result.isSuccess()) {
      */
     private void onCopyFileOperationFinish(CopyFileOperation operation, RemoteOperationResult result) {
         if (result.isSuccess()) {
-            dismissLoadingDialog();
             refreshListOfFilesFragment();
         } else {
             refreshListOfFilesFragment();
         } else {
-            dismissLoadingDialog();
             try {
                 Toast msg = Toast.makeText(FileDisplayActivity.this,
                         ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()),
             try {
                 Toast msg = Toast.makeText(FileDisplayActivity.this,
                         ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()),
@@ -1487,7 +1530,6 @@ public class FileDisplayActivity extends HookActivity
      */
     private void onRenameFileOperationFinish(RenameFileOperation operation,
                                              RemoteOperationResult result) {
      */
     private void onRenameFileOperationFinish(RenameFileOperation operation,
                                              RemoteOperationResult result) {
-        dismissLoadingDialog();
         OCFile renamedFile = operation.getFile();
         if (result.isSuccess()) {
             FileFragment details = getSecondFragment();
         OCFile renamedFile = operation.getFile();
         if (result.isSuccess()) {
             FileFragment details = getSecondFragment();
@@ -1556,10 +1598,8 @@ public class FileDisplayActivity extends HookActivity
     private void onCreateFolderOperationFinish(CreateFolderOperation operation,
                                                RemoteOperationResult result) {
         if (result.isSuccess()) {
     private void onCreateFolderOperationFinish(CreateFolderOperation operation,
                                                RemoteOperationResult result) {
         if (result.isSuccess()) {
-            dismissLoadingDialog();
             refreshListOfFilesFragment();
         } else {
             refreshListOfFilesFragment();
         } else {
-            dismissLoadingDialog();
             try {
                 Toast msg = Toast.makeText(FileDisplayActivity.this,
                         ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()),
             try {
                 Toast msg = Toast.makeText(FileDisplayActivity.this,
                         ErrorMessageAdapter.getErrorCauseMessage(result, operation, getResources()),
@@ -1622,26 +1662,60 @@ public class FileDisplayActivity extends HookActivity
         return null;
     }
 
         return null;
     }
 
-    public void startSyncFolderOperation(OCFile folder, boolean ignoreETag) {
-        long currentSyncTime = System.currentTimeMillis();
-
-        mSyncInProgress = true;
-
-        // perform folder synchronization
-        RemoteOperation synchFolderOp = new RefreshFolderOperation( folder,
-                currentSyncTime,
-                false,
-                getFileOperationsHelper().isSharedSupported(),
-                ignoreETag,
-                getStorageManager(),
-                getAccount(),
-                getApplicationContext()
+    /**
+     * Starts an operation to refresh the requested folder.
+     *
+     * The operation is run in a new background thread created on the fly.
+     *
+     * The refresh updates is a "light sync": properties of regular files in folder are updated (including
+     * associated shares), but not their contents. Only the contents of files marked to be kept-in-sync are
+     * synchronized too.
+     *
+     * @param folder        Folder to refresh.
+     * @param ignoreETag    If 'true', the data from the server will be fetched and sync'ed even if the eTag
+     *                      didn't change.
+     */
+    public void startSyncFolderOperation(final OCFile folder, final boolean ignoreETag) {
+
+        // the execution is slightly delayed to allow the activity get the window focus if it's being started
+        // or if the method is called from a dialog that is being dismissed
+        getHandler().postDelayed(
+                new Runnable() {
+                    @Override
+                    public void run() {
+                        if (hasWindowFocus()) {
+                            long currentSyncTime = System.currentTimeMillis();
+                            mSyncInProgress = true;
+
+                            // perform folder synchronization
+                            RemoteOperation synchFolderOp = new RefreshFolderOperation(folder,
+                                    currentSyncTime,
+                                    false,
+                                    getFileOperationsHelper().isSharedSupported(),
+                                    ignoreETag,
+                                    getStorageManager(),
+                                    getAccount(),
+                                    getApplicationContext()
+                            );
+                            synchFolderOp.execute(
+                                    getAccount(),
+                                    MainApp.getAppContext(),
+                                    FileDisplayActivity.this,
+                                    null,
+                                    null
+                            );
+
+                            mProgressBar.setIndeterminate(true);
+
+                            setBackgroundText();
+
+                        }   // else: NOTHING ; lets' not refresh when the user rotates the device but there is
+                        // another window floating over
+                    }
+                },
+                DELAY_TO_REQUEST_OPERATIONS_LATER
         );
         );
-        synchFolderOp.execute(getAccount(), MainApp.getAppContext(), this, null, null);
-
-        mProgressBar.setIndeterminate(true);
 
 
-        setBackgroundText();
     }
 
     /**
     }
 
     /**
ownCloud Android App