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 OCFile mFile = null;
  47     private FileListListAdapter mAdapter;
  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         //mAdapter = new FileListListAdapter();
  83
  84         Log.i(getClass().toString(), "onActivityCreated() stop");
  85     }
  86
  87
  88     @Override
  89     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
  90         OCFile file = (OCFile) mAdapter.getItem(position);
  91         if (file != null) {
  92             /// Click on a directory
  93             if (file.getMimetype().equals("DIR")) {
  94                 // just local updates
  95                 mFile = file;
  96                 listDirectory(file);
  97                 // any other updates are let to the container Activity
  98                 mContainerActivity.onDirectoryClick(file);
  99
 100             } else {    /// Click on a file
 101                 mContainerActivity.onFileClick(file);
 102             }
 103
 104         } else {
 105             Log.d(TAG, "Null object in ListAdapter!!");
 106         }
 107
 108     }
 109
 110     /**
 111      * Call this, when the user presses the up button
 112      */
 113     public void onNavigateUp() {
 114         OCFile parentDir = null;
 115
 116         if(mFile != null){
 117             DataStorageManager storageManager = mContainerActivity.getStorageManager();
 118             parentDir = storageManager.getFileById(mFile.getParentId());
 119             mFile = parentDir;
 120         }
 121         listDirectory(parentDir);
 122     }
 123
 124     /**
 125      * Use this to query the {@link OCFile} that is currently
 126      * being displayed by this fragment
 127      * @return The currently viewed OCFile
 128      */
 129     public OCFile getCurrentFile(){
 130         return mFile;
 131     }
 132
 133     /**
 134      * Calls {@link FileListFragment#listDirectory(OCFile)} with a null parameter
 135      */
 136     public void listDirectory(){
 137         listDirectory(null);
 138     }
 139
 140     /**
 141      * Lists the given directory on the view. When the input parameter is null,
 142      * it will either refresh the last known directory, or list the root
 143      * if there never was a directory.
 144      *
 145      * @param directory File to be listed
 146      */
 147     public void listDirectory(OCFile directory) {
 148
 149         DataStorageManager storageManager = mContainerActivity.getStorageManager();
 150
 151         // Check input parameters for null
 152         if(directory == null){
 153             if(mFile != null){
 154                 directory = mFile;
 155             } else {
 156                 directory = storageManager.getFileByPath("/");
 157                 if (directory == null) return; // no files, wait for sync
 158             }
 159         }
 160
 161
 162         // If that's not a directory -> List its parent
 163         if(!directory.isDirectory()){
 164             Log.w(TAG, "You see, that is not a directory -> " + directory.toString());
 165             directory = storageManager.getFileById(directory.getParentId());
 166         }
 167
 168         mFile = directory;
 169
 170         mAdapter = new FileListListAdapter(directory, storageManager, getActivity());
 171         setListAdapter(mAdapter);
 172     }
 173
 174
 175
 176     /**
 177      * Interface to implement by any Activity that includes some instance of FileListFragment
 178      *
 179      * @author David A. Velasco
 180      */
 181     public interface ContainerActivity {
 182
 183         /**
 184          * Callback method invoked when a directory is clicked by the user on the files list
 185          *
 186          * @param file
 187          */
 188         public void onDirectoryClick(OCFile file);
 189
 190         /**
 191          * Callback method invoked when a file (non directory) is clicked by the user on the files list
 192          *
 193          * @param file
 194          */
 195         public void onFileClick(OCFile file);
 196
 197         /**
 198          * Getter for the current DataStorageManager in the container activity
 199          */
 200         public DataStorageManager getStorageManager();
 201
 202     }
 203
 204 }