src/com/owncloud/android/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 com.owncloud.android.ui.fragment;
  19
  20 import java.util.Vector;
  21
  22 import com.owncloud.android.datamodel.DataStorageManager;
  23 import com.owncloud.android.datamodel.OCFile;
  24 import com.owncloud.android.ui.FragmentListView;
  25 import com.owncloud.android.ui.adapter.FileListListAdapter;
  26
  27 import android.app.Activity;
  28 import android.os.Bundle;
  29 import android.util.Log;
  30 import android.view.LayoutInflater;
  31 import android.view.View;
  32 import android.view.ViewGroup;
  33 import android.widget.AdapterView;
  34 import com.owncloud.android.R;
  35
  36 /**
  37  * A Fragment that lists all files and folders in a given path.
  38  *
  39  * @author Bartek Przybylski
  40  *
  41  */
  42 public class FileListFragment extends FragmentListView {
  43     private static final String TAG = "FileListFragment";
  44
  45     private FileListFragment.ContainerActivity mContainerActivity;
  46
  47     private OCFile mFile = null;
  48     private FileListListAdapter mAdapter;
  49
  50
  51     /**
  52      * {@inheritDoc}
  53      */
  54     @Override
  55     public void onAttach(Activity activity) {
  56         super.onAttach(activity);
  57         try {
  58             mContainerActivity = (ContainerActivity) activity;
  59         } catch (ClassCastException e) {
  60             throw new ClassCastException(activity.toString() + " must implement FileListFragment.ContainerActivity");
  61         }
  62     }
  63
  64
  65     @Override
  66     public View onCreateView(LayoutInflater inflater, ViewGroup container,
  67             Bundle savedInstanceState) {
  68         Log.i(getClass().toString(), "onCreateView() start");
  69         super.onCreateView(inflater, container, savedInstanceState);
  70         getListView().setDivider(getResources().getDrawable(R.drawable.uploader_list_separator));
  71         getListView().setDividerHeight(1);
  72
  73         Log.i(getClass().toString(), "onCreateView() end");
  74         return getListView();
  75     }
  76
  77
  78     @Override
  79     public void onActivityCreated(Bundle savedInstanceState) {
  80         Log.i(getClass().toString(), "onActivityCreated() start");
  81
  82         super.onCreate(savedInstanceState);
  83         //mAdapter = new FileListListAdapter();
  84
  85         Log.i(getClass().toString(), "onActivityCreated() stop");
  86     }
  87
  88
  89     @Override
  90     public void onItemClick(AdapterView<?> l, View v, int position, long id) {
  91         OCFile file = (OCFile) mAdapter.getItem(position);
  92         if (file != null) {
  93             /// Click on a directory
  94             if (file.getMimetype().equals("DIR")) {
  95                 // just local updates
  96                 mFile = file;
  97                 listDirectory(file);
  98                 // any other updates are let to the container Activity
  99                 mContainerActivity.onDirectoryClick(file);
 100
 101             } else {    /// Click on a file
 102                 mContainerActivity.onFileClick(file);
 103             }
 104
 105         } else {
 106             Log.d(TAG, "Null object in ListAdapter!!");
 107         }
 108
 109     }
 110
 111     /**
 112      * Call this, when the user presses the up button
 113      */
 114     public void onNavigateUp() {
 115         OCFile parentDir = null;
 116
 117         if(mFile != null){
 118             DataStorageManager storageManager = mContainerActivity.getStorageManager();
 119             parentDir = storageManager.getFileById(mFile.getParentId());
 120             mFile = parentDir;
 121         }
 122         listDirectory(parentDir);
 123     }
 124
 125     /**
 126      * Use this to query the {@link OCFile} that is currently
 127      * being displayed by this fragment
 128      * @return The currently viewed OCFile
 129      */
 130     public OCFile getCurrentFile(){
 131         return mFile;
 132     }
 133
 134     /**
 135      * Calls {@link FileListFragment#listDirectory(OCFile)} with a null parameter
 136      */
 137     public void listDirectory(){
 138         listDirectory(null);
 139     }
 140
 141     /**
 142      * Lists the given directory on the view. When the input parameter is null,
 143      * it will either refresh the last known directory, or list the root
 144      * if there never was a directory.
 145      *
 146      * @param directory File to be listed
 147      */
 148     public void listDirectory(OCFile directory) {
 149
 150         DataStorageManager storageManager = mContainerActivity.getStorageManager();
 151
 152         // Check input parameters for null
 153         if(directory == null){
 154             if(mFile != null){
 155                 directory = mFile;
 156             } else {
 157                 directory = storageManager.getFileByPath("/");
 158                 if (directory == null) return; // no files, wait for sync
 159             }
 160         }
 161
 162
 163         // If that's not a directory -> List its parent
 164         if(!directory.isDirectory()){
 165             Log.w(TAG, "You see, that is not a directory -> " + directory.toString());
 166             directory = storageManager.getFileById(directory.getParentId());
 167         }
 168
 169         mFile = directory;
 170
 171         mAdapter = new FileListListAdapter(directory, storageManager, getActivity());
 172         setListAdapter(mAdapter);
 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 }