-// private void updateDisplayHomeAtSync(){
-// ActionBar actionBar = getSupportActionBar();
-// OCFile currentDir = getCurrentDir();
-// if (currentDir.getParentId() != DataStorageManager.ROOT_PARENT_ID) {
-// actionBar.setHomeButtonEnabled(!mSyncInProgress);
-// actionBar.setDisplayHomeAsUpEnabled(!mSyncInProgress);
-// }
-// else {
-// actionBar.setHomeButtonEnabled(true);
-// actionBar.setDisplayHomeAsUpEnabled(false);
-// }
-// }
-//