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.Stack;
  21 import java.util.Vector;
  22
  23 import android.accounts.Account;
  24 import android.content.ClipData;
  25 import android.content.ClipDescription;
  26 import android.content.Intent;
  27 import android.os.Bundle;
  28 import android.support.v4.app.FragmentTransaction;
  29 import android.util.Log;
  30 import android.view.View;
  31 import android.widget.AdapterView;
  32 import android.widget.Toast;
  33 import eu.alefzero.owncloud.AccountUtils;
  34 import eu.alefzero.owncloud.FileDownloader;
  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.ui.FragmentListView;
  40 import eu.alefzero.owncloud.ui.activity.FileDetailActivity;
  41 import eu.alefzero.owncloud.ui.activity.FileDisplayActivity;
  42 import eu.alefzero.owncloud.ui.adapter.FileListListAdapter;
  43
  44 /**
  45  * A Fragment that lists all files and folders in a given path.
  46  *
  47  * @author Bartek Przybylski
  48  *
  49  */
  50 public class FileListFragment extends FragmentListView {
  51     private static final String TAG = "FileListFragment";
  52     private Account mAccount;
  53     private Stack<String> mDirNames;
  54     private Vector<OCFile> mFiles;
  55     private DataStorageManager mStorageManager;
  56     private OCFile mFile;
  57     private boolean mIsLargeDevice = false;
  58
  59     public FileListFragment() {
  60         mDirNames = new Stack<String>();
  61     }
  62
  63     @Override
  64     public void onCreate(Bundle savedInstanceState) {
  65         super.onCreate(savedInstanceState);
  66
  67         mAccount = AccountUtils.getCurrentOwnCloudAccount(getActivity());
  68         mStorageManager = new FileDataStorageManager(mAccount, getActivity().getContentResolver());
  69         getListView().setDivider(getResources().getDrawable(R.drawable.uploader_list_separator));
  70         getListView().setDividerHeight(1);
  71
  72         Intent intent = getActivity().getIntent();
  73         OCFile directory = intent.getParcelableExtra(FileDetailFragment.EXTRA_FILE);
  74         mFile = directory;
  75
  76         listDirectory(directory);
  77     }
  78
  79     @Override
  80     public void onStart() {
  81         // Create a placeholder upon launch
  82         View fragmentContainer = getActivity().findViewById(R.id.file_details_container);
  83         if (fragmentContainer != null) {
  84             mIsLargeDevice = true;
  85             FragmentTransaction transaction = getFragmentManager().beginTransaction();
  86             transaction.replace(R.id.file_details_container, new FileDetailFragment(true));
  87             transaction.commit();
  88         }
  89         super.onStart();
  90     }
  91
  92     @Override
  93     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
  94         if (mFiles.size() <= position) {
  95             throw new IndexOutOfBoundsException("Incorrect item selected");
  96         }
  97         OCFile file = mFiles.get(position);
  98         mFile = file;
  99
 100         // Update ActionBarPath
 101         if (file.getMimetype().equals("DIR")) {
 102             String dirname = file.getFileName();
 103
 104             mDirNames.push(dirname);
 105             ((FileDisplayActivity) getActivity()).pushPath(dirname);
 106
 107             listDirectory(file);
 108             resetFileFragment();
 109
 110             return;
 111         }
 112
 113         Intent showDetailsIntent = new Intent(getActivity(), FileDetailActivity.class);
 114         showDetailsIntent.putExtra(FileDetailFragment.EXTRA_FILE, file);
 115         showDetailsIntent.putExtra(FileDownloader.EXTRA_ACCOUNT, mAccount);
 116
 117         // If we are on a large device -> update fragment
 118         if (mIsLargeDevice) {
 119             FileDetailFragment fileDetails = (FileDetailFragment) getFragmentManager().findFragmentByTag("FileDetails");
 120             if (fileDetails == null) {
 121                 FragmentTransaction transaction = getFragmentManager().beginTransaction();
 122                 transaction.replace(R.id.file_details_container, new FileDetailFragment(showDetailsIntent), "FileDetails");
 123                 transaction.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
 124                 transaction.commit();
 125             } else {
 126                 fileDetails.updateFileDetails(showDetailsIntent);
 127             }
 128         } else {
 129             startActivity(showDetailsIntent);
 130         }
 131     }
 132
 133     /**
 134      * Resets the FileDetailsFragment on Tablets so that it always displays
 135      * "Tab on a file to display it's details"
 136      */
 137     private void resetFileFragment() {
 138         FileDetailFragment fileDetails = (FileDetailFragment) getFragmentManager().findFragmentByTag("FileDetails");
 139         if (fileDetails != null) {
 140             FragmentTransaction transaction = getFragmentManager().beginTransaction();
 141             transaction.remove(fileDetails);
 142             transaction.add(R.id.file_details_container, new FileDetailFragment(true));
 143             transaction.commit();
 144         }
 145     }
 146
 147     @Override
 148     public boolean onItemLongClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
 149         ClipData.Item item = new ClipData.Item("ASD");
 150         ClipDescription cd = new ClipDescription("ASD", new String[] { ClipDescription.MIMETYPE_TEXT_PLAIN });
 151         ClipData dragData = new ClipData(cd, item);
 152         arg1.startDrag(dragData, new View.DragShadowBuilder(arg0.getChildAt(arg2)), null, 0);
 153         return true;
 154     }
 155
 156     /**
 157      * Call this, when the user presses the up button
 158      */
 159     public void onNavigateUp() {
 160         mDirNames.pop();
 161         OCFile parentDir = null;
 162
 163         if(mFile != null){
 164             parentDir = mStorageManager.getFileById(mFile.getParentId());
 165             mFile = parentDir;
 166         }
 167
 168         listDirectory(parentDir);
 169         resetFileFragment();
 170     }
 171
 172     /**
 173      * Calls {@link FileListFragment#listDirectory(OCFile)} with a null parameter
 174      */
 175     public void listDirectory(){
 176         listDirectory(null);
 177     }
 178
 179     /**
 180      * Lists the given directory on the view. When the input parameter is null,
 181      * it will either refresh the last known directory, or list the root
 182      * if there never was a directory.
 183      *
 184      * @param directory File to be listed
 185      */
 186     public void listDirectory(OCFile directory) {
 187
 188         // Check input parameters for null
 189         if(directory == null){
 190             if(mFile != null){
 191                 directory = mFile;
 192             } else {
 193                 directory = mStorageManager.getFileByPath("/");
 194             }
 195         }
 196
 197         // If that's not a directory -> List its parent
 198         if(!directory.isDirectory()){
 199             Log.w(TAG, "You see, that is not a directory -> " + directory.toString());
 200             directory = mStorageManager.getFileById(directory.getParentId());
 201         }
 202
 203         mFiles = mStorageManager.getDirectoryContent(directory);
 204         if (mFiles == null || mFiles.size() == 0) {
 205             Toast.makeText(getActivity(), "There are no files here", Toast.LENGTH_LONG).show();
 206         }
 207         setListAdapter(new FileListListAdapter(directory, mStorageManager, getActivity()));
 208     }
 209
 210     @Override
 211     public void onSaveInstanceState(Bundle outState) {
 212         super.onSaveInstanceState(outState);
 213         outState.putParcelable("ACCOUNT", mAccount);
 214     }
 215
 216 }