src/com/owncloud/android/ui/fragment/OCFileListFragment.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 com.owncloud.android.ui.fragment;
  19
  20 import com.owncloud.android.datamodel.DataStorageManager;
  21 import com.owncloud.android.datamodel.OCFile;
  22 import com.owncloud.android.ui.FragmentListView;
  23 import com.owncloud.android.ui.adapter.FileListListAdapter;
  24
  25 import android.app.Activity;
  26 import android.os.Bundle;
  27 import android.util.Log;
  28 import android.view.LayoutInflater;
  29 import android.view.View;
  30 import android.view.ViewGroup;
  31 import android.widget.AdapterView;
  32 import com.owncloud.android.R;
  33
  34 /**
  35  * A Fragment that lists all files and folders in a given path.
  36  *
  37  * @author Bartek Przybylski
  38  *
  39  */
  40 public class OCFileListFragment extends FragmentListView {
  41     private static final String TAG = "FileListFragment";
  42
  43     private OCFileListFragment.ContainerActivity mContainerActivity;
  44
  45     private OCFile mFile = null;
  46     private FileListListAdapter mAdapter;
  47
  48
  49     /**
  50      * {@inheritDoc}
  51      */
  52     @Override
  53     public void onAttach(Activity activity) {
  54         super.onAttach(activity);
  55         try {
  56             mContainerActivity = (ContainerActivity) activity;
  57         } catch (ClassCastException e) {
  58             throw new ClassCastException(activity.toString() + " must implement FileListFragment.ContainerActivity");
  59         }
  60     }
  61
  62
  63     @Override
  64     public View onCreateView(LayoutInflater inflater, ViewGroup container,
  65             Bundle savedInstanceState) {
  66         Log.i(getClass().toString(), "onCreateView() start");
  67         super.onCreateView(inflater, container, savedInstanceState);
  68         getListView().setDivider(getResources().getDrawable(R.drawable.uploader_list_separator));
  69         getListView().setDividerHeight(1);
  70
  71         Log.i(getClass().toString(), "onCreateView() end");
  72         return getListView();
  73     }
  74
  75
  76     @Override
  77     public void onActivityCreated(Bundle savedInstanceState) {
  78         Log.i(getClass().toString(), "onActivityCreated() start");
  79
  80         super.onCreate(savedInstanceState);
  81         //mAdapter = new FileListListAdapter();
  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         OCFile file = (OCFile) mAdapter.getItem(position);
  90         if (file != null) {
  91             /// Click on a directory
  92             if (file.getMimetype().equals("DIR")) {
  93                 // just local updates
  94                 mFile = file;
  95                 listDirectory(file);
  96                 // any other updates are let to the container Activity
  97                 mContainerActivity.onDirectoryClick(file);
  98
  99             } else {    /// Click on a file
 100                 mContainerActivity.onFileClick(file);
 101             }
 102
 103         } else {
 104             Log.d(TAG, "Null object in ListAdapter!!");
 105         }
 106
 107     }
 108
 109     /**
 110      * Call this, when the user presses the up button
 111      */
 112     public void onNavigateUp() {
 113         OCFile parentDir = null;
 114
 115         if(mFile != null){
 116             DataStorageManager storageManager = mContainerActivity.getStorageManager();
 117             parentDir = storageManager.getFileById(mFile.getParentId());
 118             mFile = parentDir;
 119         }
 120         listDirectory(parentDir);
 121     }
 122
 123     /**
 124      * Use this to query the {@link OCFile} that is currently
 125      * being displayed by this fragment
 126      * @return The currently viewed OCFile
 127      */
 128     public OCFile getCurrentFile(){
 129         return mFile;
 130     }
 131
 132     /**
 133      * Calls {@link OCFileListFragment#listDirectory(OCFile)} with a null parameter
 134      */
 135     public void listDirectory(){
 136         listDirectory(null);
 137     }
 138
 139     /**
 140      * Lists the given directory on the view. When the input parameter is null,
 141      * it will either refresh the last known directory, or list the root
 142      * if there never was a directory.
 143      *
 144      * @param directory File to be listed
 145      */
 146     public void listDirectory(OCFile directory) {
 147
 148         DataStorageManager storageManager = mContainerActivity.getStorageManager();
 149
 150         // Check input parameters for null
 151         if(directory == null){
 152             if(mFile != null){
 153                 directory = mFile;
 154             } else {
 155                 directory = storageManager.getFileByPath("/");
 156                 if (directory == null) return; // no files, wait for sync
 157             }
 158         }
 159
 160
 161         // If that's not a directory -> List its parent
 162         if(!directory.isDirectory()){
 163             Log.w(TAG, "You see, that is not a directory -> " + directory.toString());
 164             directory = storageManager.getFileById(directory.getParentId());
 165         }
 166
 167         mFile = directory;
 168
 169         mAdapter = new FileListListAdapter(directory, storageManager, getActivity());
 170         setListAdapter(mAdapter);
 171     }
 172
 173
 174
 175     /**
 176      * Interface to implement by any Activity that includes some instance of FileListFragment
 177      *
 178      * @author David A. Velasco
 179      */
 180     public interface ContainerActivity {
 181
 182         /**
 183          * Callback method invoked when a directory is clicked by the user on the files list
 184          *
 185          * @param file
 186          */
 187         public void onDirectoryClick(OCFile file);
 188
 189         /**
 190          * Callback method invoked when a file (non directory) is clicked by the user on the files list
 191          *
 192          * @param file
 193          */
 194         public void onFileClick(OCFile file);
 195
 196         /**
 197          * Getter for the current DataStorageManager in the container activity
 198          */
 199         public DataStorageManager getStorageManager();
 200
 201     }
 202
 203 }