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 android.accounts.Account;
  23 import android.content.Intent;
  24 import android.os.Bundle;
  25 import android.support.v4.app.FragmentTransaction;
  26 import android.util.Log;
  27 import android.view.View;
  28 import android.widget.AdapterView;
  29 import android.widget.Toast;
  30 import eu.alefzero.owncloud.AccountUtils;
  31 import eu.alefzero.owncloud.FileDownloader;
  32 import eu.alefzero.owncloud.R;
  33 import eu.alefzero.owncloud.datamodel.DataStorageManager;
  34 import eu.alefzero.owncloud.datamodel.FileDataStorageManager;
  35 import eu.alefzero.owncloud.datamodel.OCFile;
  36 import eu.alefzero.owncloud.ui.FragmentListView;
  37 import eu.alefzero.owncloud.ui.activity.FileDetailActivity;
  38 import eu.alefzero.owncloud.ui.activity.FileDisplayActivity;
  39 import eu.alefzero.owncloud.ui.adapter.FileListListAdapter;
  40
  41 /**
  42  * A Fragment that lists all files and folders in a given path.
  43  *
  44  * @author Bartek Przybylski
  45  *
  46  */
  47 public class FileListFragment extends FragmentListView {
  48     private static final String TAG = "FileListFragment";
  49     private Account mAccount;
  50     private Vector<OCFile> mFiles;
  51     private DataStorageManager mStorageManager;
  52     private OCFile mFile;
  53     private boolean mIsLargeDevice = false;
  54
  55     @Override
  56     public void onCreate(Bundle savedInstanceState) {
  57         super.onCreate(savedInstanceState);
  58
  59         mAccount = AccountUtils.getCurrentOwnCloudAccount(getActivity());
  60         mStorageManager = new FileDataStorageManager(mAccount, getActivity().getContentResolver());
  61         getListView().setDivider(getResources().getDrawable(R.drawable.uploader_list_separator));
  62         getListView().setDividerHeight(1);
  63
  64         Intent intent = getActivity().getIntent();
  65         OCFile directory = intent.getParcelableExtra(FileDetailFragment.EXTRA_FILE);
  66         mFile = directory;
  67
  68         listDirectory(directory);
  69     }
  70
  71     @Override
  72     public void onStart() {
  73         // Create a placeholder upon launch
  74         View fragmentContainer = getActivity().findViewById(R.id.file_details_container);
  75         if (fragmentContainer != null) {
  76             mIsLargeDevice = true;
  77             FragmentTransaction transaction = getFragmentManager().beginTransaction();
  78             transaction.replace(R.id.file_details_container, new FileDetailFragment(true));
  79             transaction.commit();
  80         }
  81         super.onStart();
  82     }
  83
  84     @Override
  85     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
  86         if (mFiles.size() <= position) {
  87             throw new IndexOutOfBoundsException("Incorrect item selected");
  88         }
  89         OCFile file = mFiles.get(position);
  90
  91         // Update ActionBarPath
  92         if (file.getMimetype().equals("DIR")) {
  93             mFile = file;
  94             ((FileDisplayActivity) getActivity()).pushDirname(file);
  95             listDirectory(file);
  96             resetFileFragment();
  97             return;
  98         }
  99
 100         Intent showDetailsIntent = new Intent(getActivity(), FileDetailActivity.class);
 101         showDetailsIntent.putExtra(FileDetailFragment.EXTRA_FILE, file);
 102         showDetailsIntent.putExtra(FileDownloader.EXTRA_ACCOUNT, mAccount);
 103
 104         // If we are on a large device -> update fragment
 105         if (mIsLargeDevice) {
 106             FileDetailFragment fileDetails = (FileDetailFragment) getFragmentManager().findFragmentByTag("FileDetails");
 107             if (fileDetails == null) {
 108                 FragmentTransaction transaction = getFragmentManager().beginTransaction();
 109                 transaction.replace(R.id.file_details_container, new FileDetailFragment(showDetailsIntent), "FileDetails");
 110                 transaction.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
 111                 transaction.commit();
 112             } else {
 113                 fileDetails.updateFileDetails(showDetailsIntent);
 114             }
 115         } else {
 116             startActivity(showDetailsIntent);
 117         }
 118     }
 119
 120     /**
 121      * Resets the FileDetailsFragment on Tablets so that it always displays
 122      * "Tab on a file to display it's details"
 123      */
 124     private void resetFileFragment() {
 125         FileDetailFragment fileDetails = (FileDetailFragment) getFragmentManager().findFragmentByTag("FileDetails");
 126         if (fileDetails != null) {
 127             FragmentTransaction transaction = getFragmentManager().beginTransaction();
 128             transaction.remove(fileDetails);
 129             transaction.add(R.id.file_details_container, new FileDetailFragment(true));
 130             transaction.commit();
 131         }
 132     }
 133
 134     /**
 135      * Call this, when the user presses the up button
 136      */
 137     public void onNavigateUp() {
 138         OCFile parentDir = null;
 139
 140         if(mFile != null){
 141             parentDir = mStorageManager.getFileById(mFile.getParentId());
 142             mFile = parentDir;
 143         }
 144
 145         listDirectory(parentDir);
 146         resetFileFragment();
 147     }
 148
 149     /**
 150      * Use this to query the {@link OCFile} that is currently
 151      * being displayed by this fragment
 152      * @return The currently viewed OCFile
 153      */
 154     public OCFile getCurrentFile(){
 155         return mFile;
 156     }
 157
 158     /**
 159      * Calls {@link FileListFragment#listDirectory(OCFile)} with a null parameter
 160      */
 161     public void listDirectory(){
 162         listDirectory(null);
 163     }
 164
 165     /**
 166      * Lists the given directory on the view. When the input parameter is null,
 167      * it will either refresh the last known directory, or list the root
 168      * if there never was a directory.
 169      *
 170      * @param directory File to be listed
 171      */
 172     public void listDirectory(OCFile directory) {
 173
 174         // Check input parameters for null
 175         if(directory == null){
 176             if(mFile != null){
 177                 directory = mFile;
 178             } else {
 179                 directory = mStorageManager.getFileByPath("/");
 180             }
 181         }
 182
 183
 184         // If that's not a directory -> List its parent
 185         if(!directory.isDirectory()){
 186             Log.w(TAG, "You see, that is not a directory -> " + directory.toString());
 187             directory = mStorageManager.getFileById(directory.getParentId());
 188         }
 189
 190         mFile = directory;
 191
 192         mFiles = mStorageManager.getDirectoryContent(directory);
 193         if (mFiles == null || mFiles.size() == 0) {
 194             Toast.makeText(getActivity(), "There are no files here", Toast.LENGTH_LONG).show();
 195         }
 196         setListAdapter(new FileListListAdapter(directory, mStorageManager, getActivity()));
 197     }
 198
 199     @Override
 200     public void onSaveInstanceState(Bundle outState) {
 201         super.onSaveInstanceState(outState);
 202         outState.putParcelable("ACCOUNT", mAccount);
 203     }
 204
 205 }