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.app.Activity;
  23 import android.os.Bundle;
  24 import android.util.Log;
  25 import android.view.LayoutInflater;
  26 import android.view.View;
  27 import android.view.ViewGroup;
  28 import android.widget.AdapterView;
  29 import eu.alefzero.owncloud.R;
  30 import eu.alefzero.owncloud.datamodel.DataStorageManager;
  31 import eu.alefzero.owncloud.datamodel.OCFile;
  32 import eu.alefzero.owncloud.ui.FragmentListView;
  33 import eu.alefzero.owncloud.ui.adapter.FileListListAdapter;
  34
  35 /**
  36  * A Fragment that lists all files and folders in a given path.
  37  *
  38  * @author Bartek Przybylski
  39  *
  40  */
  41 public class FileListFragment extends FragmentListView {
  42     private static final String TAG = "FileListFragment";
  43
  44     private FileListFragment.ContainerActivity mContainerActivity;
  45
  46     private Vector<OCFile> mFiles;
  47     private OCFile mFile = null;
  48
  49
  50     /**
  51      * {@inheritDoc}
  52      */
  53     @Override
  54     public void onAttach(Activity activity) {
  55         super.onAttach(activity);
  56         try {
  57             mContainerActivity = (ContainerActivity) activity;
  58         } catch (ClassCastException e) {
  59             throw new ClassCastException(activity.toString() + " must implement FileListFragment.ContainerActivity");
  60         }
  61     }
  62
  63
  64     @Override
  65     public View onCreateView(LayoutInflater inflater, ViewGroup container,
  66             Bundle savedInstanceState) {
  67         Log.i(getClass().toString(), "onCreateView() start");
  68         super.onCreateView(inflater, container, savedInstanceState);
  69         getListView().setDivider(getResources().getDrawable(R.drawable.uploader_list_separator));
  70         getListView().setDividerHeight(1);
  71
  72         Log.i(getClass().toString(), "onCreateView() end");
  73         return getListView();
  74     }
  75
  76
  77     @Override
  78     public void onActivityCreated(Bundle savedInstanceState) {
  79         Log.i(getClass().toString(), "onActivityCreated() start");
  80
  81         super.onCreate(savedInstanceState);
  82
  83         Log.i(getClass().toString(), "onActivityCreated() stop");
  84     }
  85
  86
  87     @Override
  88     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
  89         if (mFiles.size() <= position) {
  90             throw new IndexOutOfBoundsException("Incorrect item selected");
  91         }
  92         OCFile file = mFiles.get(position);
  93
  94         /// Click on a directory
  95         if (file.getMimetype().equals("DIR")) {
  96             // just local updates
  97             mFile = file;
  98             listDirectory(file);
  99             // any other updates are let to the container Activity
 100             mContainerActivity.onDirectoryClick(file);
 101
 102         } else {    /// Click on a file
 103             mContainerActivity.onFileClick(file);
 104         }
 105
 106     }
 107
 108     /**
 109      * Call this, when the user presses the up button
 110      */
 111     public void onNavigateUp() {
 112         OCFile parentDir = null;
 113
 114         if(mFile != null){
 115             DataStorageManager storageManager = mContainerActivity.getStorageManager();
 116             parentDir = storageManager.getFileById(mFile.getParentId());
 117             mFile = parentDir;
 118         }
 119         listDirectory(parentDir);
 120     }
 121
 122     /**
 123      * Use this to query the {@link OCFile} that is currently
 124      * being displayed by this fragment
 125      * @return The currently viewed OCFile
 126      */
 127     public OCFile getCurrentFile(){
 128         return mFile;
 129     }
 130
 131     /**
 132      * Calls {@link FileListFragment#listDirectory(OCFile)} with a null parameter
 133      */
 134     public void listDirectory(){
 135         listDirectory(null);
 136     }
 137
 138     /**
 139      * Lists the given directory on the view. When the input parameter is null,
 140      * it will either refresh the last known directory, or list the root
 141      * if there never was a directory.
 142      *
 143      * @param directory File to be listed
 144      */
 145     public void listDirectory(OCFile directory) {
 146
 147         DataStorageManager storageManager = mContainerActivity.getStorageManager();
 148
 149         // Check input parameters for null
 150         if(directory == null){
 151             if(mFile != null){
 152                 directory = mFile;
 153             } else {
 154                 directory = storageManager.getFileByPath("/");
 155                 if (directory == null) return; // no files, wait for sync
 156             }
 157         }
 158
 159
 160         // If that's not a directory -> List its parent
 161         if(!directory.isDirectory()){
 162             Log.w(TAG, "You see, that is not a directory -> " + directory.toString());
 163             directory = storageManager.getFileById(directory.getParentId());
 164         }
 165
 166         mFile = directory;
 167         mFiles = storageManager.getDirectoryContent(directory);
 168
 169         /*if (mFiles == null || mFiles.size() == 0) {
 170             Toast.makeText(getActivity(), "There are no files here", Toast.LENGTH_LONG).show();
 171         }*/
 172         setListAdapter(new FileListListAdapter(directory, storageManager, getActivity()));
 173     }
 174
 175
 176
 177     /**
 178      * Interface to implement by any Activity that includes some instance of FileListFragment
 179      *
 180      * @author David A. Velasco
 181      */
 182     public interface ContainerActivity {
 183
 184         /**
 185          * Callback method invoked when a directory is clicked by the user on the files list
 186          *
 187          * @param file
 188          */
 189         public void onDirectoryClick(OCFile file);
 190
 191         /**
 192          * Callback method invoked when a file (non directory) is clicked by the user on the files list
 193          *
 194          * @param file
 195          */
 196         public void onFileClick(OCFile file);
 197
 198         /**
 199          * Getter for the current DataStorageManager in the container activity
 200          */
 201         public DataStorageManager getStorageManager();
 202
 203     }
 204
 205 }