src/eu/alefzero/owncloud/ui/fragment/FileListFragment.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2011  Bartek Przybylski
   3  *
   4  *   This program is free software: you can redistribute it and/or modify
   5  *   it under the terms of the GNU General Public License as published by
   6  *   the Free Software Foundation, either version 3 of the License, or
   7  *   (at your option) any later version.
   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 package eu.alefzero.owncloud.ui.fragment;
  19
  20 import java.util.Vector;
  21
  22 import com.actionbarsherlock.app.ActionBar;
  23
  24 import android.accounts.Account;
  25 import android.content.Intent;
  26 import android.os.Bundle;
  27 import android.support.v4.app.FragmentTransaction;
  28 import android.util.Log;
  29 import android.view.LayoutInflater;
  30 import android.view.View;
  31 import android.view.ViewGroup;
  32 import android.widget.AdapterView;
  33 import android.widget.Toast;
  34 import eu.alefzero.owncloud.AccountUtils;
  35 import eu.alefzero.owncloud.R;
  36 import eu.alefzero.owncloud.datamodel.DataStorageManager;
  37 import eu.alefzero.owncloud.datamodel.FileDataStorageManager;
  38 import eu.alefzero.owncloud.datamodel.OCFile;
  39 import eu.alefzero.owncloud.files.services.FileDownloader;
  40 import eu.alefzero.owncloud.ui.FragmentListView;
  41 import eu.alefzero.owncloud.ui.activity.FileDetailActivity;
  42 import eu.alefzero.owncloud.ui.activity.FileDisplayActivity;
  43 import eu.alefzero.owncloud.ui.adapter.FileListListAdapter;
  44
  45 /**
  46  * A Fragment that lists all files and folders in a given path.
  47  *
  48  * @author Bartek Przybylski
  49  *
  50  */
  51 public class FileListFragment extends FragmentListView {
  52     private static final String TAG = "FileListFragment";
  53     private Account mAccount;
  54     private Vector<OCFile> mFiles;
  55     private DataStorageManager mStorageManager;
  56     private OCFile mFile;
  57     private boolean mIsLargeDevice = false;
  58
  59     @Override
  60     public void onCreate(Bundle savedInstanceState) {
  61         super.onCreate(savedInstanceState);
  62
  63         mAccount = AccountUtils.getCurrentOwnCloudAccount(getActivity());
  64         mStorageManager = new FileDataStorageManager(mAccount, getActivity().getContentResolver());
  65
  66         Intent intent = getActivity().getIntent();
  67         OCFile directory = intent.getParcelableExtra(FileDetailFragment.EXTRA_FILE);
  68         mFile = directory;
  69
  70     }
  71
  72     @Override
  73     public View onCreateView(LayoutInflater inflater, ViewGroup container,
  74             Bundle savedInstanceState) {
  75         super.onCreateView(inflater, container, savedInstanceState);
  76         getListView().setDivider(getResources().getDrawable(R.drawable.uploader_list_separator));
  77         getListView().setDividerHeight(1);
  78
  79         //listDirectory(mFile);
  80
  81         return getListView();
  82     }
  83
  84     @Override
  85     public void onStart() {
  86         // Create a placeholder upon launch
  87         View fragmentContainer = getActivity().findViewById(R.id.file_details_container);
  88         if (fragmentContainer != null) {
  89             mIsLargeDevice = true;
  90             FragmentTransaction transaction = getFragmentManager().beginTransaction();
  91             transaction.replace(R.id.file_details_container, new FileDetailFragment(true));
  92             transaction.commit();
  93         }
  94         super.onStart();
  95     }
  96
  97     @Override
  98     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
  99         if (mFiles.size() <= position) {
 100             throw new IndexOutOfBoundsException("Incorrect item selected");
 101         }
 102         OCFile file = mFiles.get(position);
 103
 104         // Update ActionBarPath
 105         if (file.getMimetype().equals("DIR")) {
 106             mFile = file;
 107             ((FileDisplayActivity) getActivity()).pushDirname(file);
 108             ActionBar actionBar = ((FileDisplayActivity) getActivity()).getSupportActionBar();
 109             actionBar.setDisplayHomeAsUpEnabled(true);
 110             listDirectory(file);
 111             resetFileFragment();
 112             return;
 113         }
 114
 115         Intent showDetailsIntent = new Intent(getActivity(), FileDetailActivity.class);
 116         showDetailsIntent.putExtra(FileDetailFragment.EXTRA_FILE, file);
 117         showDetailsIntent.putExtra(FileDownloader.EXTRA_ACCOUNT, mAccount);
 118
 119         // If we are on a large device -> update fragment
 120         if (mIsLargeDevice) {
 121             FileDetailFragment fileDetails = (FileDetailFragment) getFragmentManager().findFragmentByTag("FileDetails");
 122             if (fileDetails == null) {
 123                 FragmentTransaction transaction = getFragmentManager().beginTransaction();
 124                 transaction.replace(R.id.file_details_container, new FileDetailFragment(showDetailsIntent), "FileDetails");
 125                 transaction.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
 126                 transaction.commit();
 127             } else {
 128                 fileDetails.updateFileDetails(showDetailsIntent);
 129             }
 130         } else {
 131             startActivity(showDetailsIntent);
 132         }
 133     }
 134
 135     /**
 136      * Resets the FileDetailsFragment on Tablets so that it always displays
 137      * "Tab on a file to display it's details"
 138      */
 139     private void resetFileFragment() {
 140         FileDetailFragment fileDetails = (FileDetailFragment) getFragmentManager().findFragmentByTag("FileDetails");
 141         if (fileDetails != null) {
 142             FragmentTransaction transaction = getFragmentManager().beginTransaction();
 143             transaction.remove(fileDetails);
 144             transaction.add(R.id.file_details_container, new FileDetailFragment(true));
 145             transaction.commit();
 146         }
 147     }
 148
 149     /**
 150      * Call this, when the user presses the up button
 151      */
 152     public void onNavigateUp() {
 153         OCFile parentDir = null;
 154
 155         if(mFile != null){
 156             parentDir = mStorageManager.getFileById(mFile.getParentId());
 157             mFile = parentDir;
 158         }
 159
 160         listDirectory(parentDir);
 161         resetFileFragment();
 162     }
 163
 164     /**
 165      * Use this to query the {@link OCFile} that is currently
 166      * being displayed by this fragment
 167      * @return The currently viewed OCFile
 168      */
 169     public OCFile getCurrentFile(){
 170         return mFile;
 171     }
 172
 173     /**
 174      * Calls {@link FileListFragment#listDirectory(OCFile)} with a null parameter
 175      */
 176     public void listDirectory(){
 177         listDirectory(null);
 178     }
 179
 180     /**
 181      * Lists the given directory on the view. When the input parameter is null,
 182      * it will either refresh the last known directory, or list the root
 183      * if there never was a directory.
 184      *
 185      * @param directory File to be listed
 186      */
 187     public void listDirectory(OCFile directory) {
 188
 189         // Check input parameters for null
 190         if(directory == null){
 191             if(mFile != null){
 192                 directory = mFile;
 193             } else {
 194                 directory = mStorageManager.getFileByPath("/");
 195                 if (directory == null) return; // no files, wait for sync
 196             }
 197         }
 198
 199
 200         // If that's not a directory -> List its parent
 201         if(!directory.isDirectory()){
 202             Log.w(TAG, "You see, that is not a directory -> " + directory.toString());
 203             directory = mStorageManager.getFileById(directory.getParentId());
 204         }
 205
 206         mFile = directory;
 207
 208         mFiles = mStorageManager.getDirectoryContent(directory);
 209         if (mFiles == null || mFiles.size() == 0) {
 210             Toast.makeText(getActivity(), "There are no files here", Toast.LENGTH_LONG).show();
 211         }
 212         setListAdapter(new FileListListAdapter(directory, mStorageManager, getActivity()));
 213     }
 214
 215     @Override
 216     public void onSaveInstanceState(Bundle outState) {
 217         super.onSaveInstanceState(outState);
 218         outState.putParcelable("ACCOUNT", mAccount);
 219     }
 220
 221     /**
 222      * This should be called every time the current account changes, in order to synchronize mStorageManager without create a new FileListFragment
 223      */
 224     public void updateAccount() {
 225         Account old = mAccount;
 226         mAccount = AccountUtils.getCurrentOwnCloudAccount(getActivity());
 227         if (old != mAccount)
 228             mStorageManager = new FileDataStorageManager(mAccount, getActivity().getContentResolver());
 229             // dvelasco : a better solution can be provided change the flow between states "wiht account" and "without account", in terms of interactions between AuthenticatorActivity and FileDisplayActivity
 230     }
 231
 232 }