src/com/owncloud/android/ui/adapter/FileListListAdapter.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2011  Bartek Przybylski
   3  *   Copyright (C) 2012-2014 ownCloud Inc.
   4  *
   5  *   This program is free software: you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License version 2,
   7  *   as published by the Free Software Foundation.
   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.adapter;
  19
  20
  21 import java.io.File;
  22 import java.util.Vector;
  23
  24 import android.accounts.Account;
  25 import android.content.Context;
  26 import android.content.SharedPreferences;
  27 import android.graphics.Bitmap;
  28 import android.preference.PreferenceManager;
  29 import android.text.format.DateUtils;
  30 import android.view.LayoutInflater;
  31 import android.view.View;
  32 import android.view.ViewGroup;
  33 import android.widget.BaseAdapter;
  34 import android.widget.ImageView;
  35 import android.widget.ListAdapter;
  36 import android.widget.ListView;
  37 import android.widget.TextView;
  38
  39 import com.owncloud.android.R;
  40 import com.owncloud.android.authentication.AccountUtils;
  41 import com.owncloud.android.datamodel.FileDataStorageManager;
  42 import com.owncloud.android.datamodel.OCFile;
  43 import com.owncloud.android.datamodel.ThumbnailsCacheManager;
  44 import com.owncloud.android.utils.DisplayUtils;
  45 import com.owncloud.android.utils.FileStorageUtils;
  46
  47
  48 /**
  49  * This Adapter populates a ListView with all files and folders in an ownCloud
  50  * instance.
  51  *
  52  * @author Bartek Przybylski
  53  * @author Tobias Kaminsky
  54  * @author David A. Velasco
  55  */
  56 public class FileListListAdapter extends BaseAdapter implements ListAdapter {
  57     private final static String PERMISSION_SHARED_WITH_ME = "S";
  58
  59     private Context mContext;
  60     private OCFile mFile = null;
  61     private Vector<OCFile> mFiles = null;
  62     private boolean mJustFolders;
  63
  64     private FileDataStorageManager mStorageManager;
  65     private Account mAccount;
  66
  67     private SharedPreferences mAppPreferences;
  68
  69     public FileListListAdapter(
  70             boolean justFolders,
  71             Context context
  72             ) {
  73
  74         mJustFolders = justFolders;
  75         mContext = context;
  76         mAccount = AccountUtils.getCurrentOwnCloudAccount(mContext);
  77
  78         mAppPreferences = PreferenceManager
  79                 .getDefaultSharedPreferences(mContext);
  80
  81         // Read sorting order, default to sort by name ascending
  82         FileStorageUtils.mSortOrder = mAppPreferences.getInt("sortOrder", 0);
  83         FileStorageUtils.mSortAscending = mAppPreferences.getBoolean("sortAscending", true);
  84
  85
  86         // initialise thumbnails cache on background thread
  87         new ThumbnailsCacheManager.InitDiskCacheTask().execute();
  88
  89     }
  90
  91     @Override
  92     public boolean areAllItemsEnabled() {
  93         return true;
  94     }
  95
  96     @Override
  97     public boolean isEnabled(int position) {
  98         return true;
  99     }
 100
 101     @Override
 102     public int getCount() {
 103         return mFiles != null ? mFiles.size() : 0;
 104     }
 105
 106     @Override
 107     public Object getItem(int position) {
 108         if (mFiles == null || mFiles.size() <= position)
 109             return null;
 110         return mFiles.get(position);
 111     }
 112
 113     @Override
 114     public long getItemId(int position) {
 115         if (mFiles == null || mFiles.size() <= position)
 116             return 0;
 117         return mFiles.get(position).getFileId();
 118     }
 119
 120     @Override
 121     public int getItemViewType(int position) {
 122         return 0;
 123     }
 124
 125     @Override
 126     public View getView(int position, View convertView, ViewGroup parent) {
 127         View view = convertView;
 128         if (view == null) {
 129             LayoutInflater inflator = (LayoutInflater) mContext
 130                     .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
 131             view = inflator.inflate(R.layout.list_item, null);
 132         }
 133
 134         if (mFiles != null && mFiles.size() > position) {
 135             OCFile file = mFiles.get(position);
 136             TextView fileName = (TextView) view.findViewById(R.id.Filename);
 137             String name = file.getFileName();
 138
 139             fileName.setText(name);
 140             ImageView fileIcon = (ImageView) view.findViewById(R.id.imageView1);
 141             fileIcon.setTag(file.getFileId());
 142             ImageView sharedIconV = (ImageView) view.findViewById(R.id.sharedIcon);
 143             ImageView sharedWithMeIconV = (ImageView) view.findViewById(R.id.sharedWithMeIcon);
 144             sharedWithMeIconV.setVisibility(View.GONE);
 145
 146             ImageView localStateView = (ImageView) view.findViewById(R.id.imageView2);
 147             localStateView.bringToFront();
 148             if (file.isSynchronizing() || file.isDownloading()) {
 149                 localStateView.setImageResource(R.drawable.downloading_file_indicator);
 150                 localStateView.setVisibility(View.VISIBLE);
 151             } else if (file.isUploading()) {
 152                 localStateView.setImageResource(R.drawable.uploading_file_indicator);
 153                 localStateView.setVisibility(View.VISIBLE);
 154             } else if (file.isDown()) {
 155                 localStateView.setImageResource(R.drawable.local_file_indicator);
 156                 localStateView.setVisibility(View.VISIBLE);
 157             } else {
 158                 localStateView.setVisibility(View.INVISIBLE);
 159             }
 160
 161             TextView fileSizeV = (TextView) view.findViewById(R.id.file_size);
 162             TextView lastModV = (TextView) view.findViewById(R.id.last_mod);
 163             ImageView checkBoxV = (ImageView) view.findViewById(R.id.custom_checkbox);
 164
 165             if (!file.isFolder()) {
 166                 fileSizeV.setVisibility(View.VISIBLE);
 167                 fileSizeV.setText(DisplayUtils.bytesToHumanReadable(file.getFileLength()));
 168                 lastModV.setVisibility(View.VISIBLE);
 169                 lastModV.setText(showRelativeTimestamp(file));
 170                 // this if-else is needed even thoe fav icon is visible by default
 171                 // because android reuses views in listview
 172                 if (!file.keepInSync()) {
 173                     view.findViewById(R.id.imageView3).setVisibility(View.GONE);
 174                 } else {
 175                     view.findViewById(R.id.imageView3).setVisibility(View.VISIBLE);
 176                 }
 177
 178                 ListView parentList = (ListView)parent;
 179                 if (parentList.getChoiceMode() == ListView.CHOICE_MODE_NONE) {
 180                     checkBoxV.setVisibility(View.GONE);
 181                 } else {
 182                     if (parentList.isItemChecked(position)) {
 183                         checkBoxV.setImageResource(android.R.drawable.checkbox_on_background);
 184                     } else {
 185                         checkBoxV.setImageResource(android.R.drawable.checkbox_off_background);
 186                     }
 187                     checkBoxV.setVisibility(View.VISIBLE);
 188                 }
 189
 190                 // get Thumbnail if file is image
 191                 if (file.isImage() && file.getRemoteId() != null){
 192                      // Thumbnail in Cache?
 193                     Bitmap thumbnail = ThumbnailsCacheManager.getBitmapFromDiskCache(
 194                             String.valueOf(file.getRemoteId())
 195                     );
 196                     if (thumbnail != null && !file.needsUpdateThumbnail()){
 197                         fileIcon.setImageBitmap(thumbnail);
 198                     } else {
 199
 200                         // generate new Thumbnail
 201                         if (ThumbnailsCacheManager.cancelPotentialWork(file, fileIcon)) {
 202                             final ThumbnailsCacheManager.ThumbnailGenerationTask task =
 203                                     new ThumbnailsCacheManager.ThumbnailGenerationTask(
 204                                             fileIcon, mStorageManager, mAccount
 205                                     );
 206                             if (thumbnail == null) {
 207                                 thumbnail = ThumbnailsCacheManager.mDefaultImg;
 208                             }
 209                             final ThumbnailsCacheManager.AsyncDrawable asyncDrawable =
 210                                     new ThumbnailsCacheManager.AsyncDrawable(
 211                                     mContext.getResources(),
 212                                     thumbnail,
 213                                     task
 214                             );
 215                             fileIcon.setImageDrawable(asyncDrawable);
 216                             task.execute(file);
 217                         }
 218                     }
 219                 } else {
 220                     fileIcon.setImageResource(DisplayUtils.getFileTypeIconId(file.getMimetype(), file.getFileName()));
 221                 }
 222
 223                 if (checkIfFileIsSharedWithMe(file)) {
 224                     sharedWithMeIconV.setVisibility(View.VISIBLE);
 225                 }
 226             }
 227             else {
 228                   // TODO Re-enable when server supports folder-size calculation
 229 //                if (FileStorageUtils.getDefaultSavePathFor(mAccount.name, file) != null){
 230 //                    fileSizeV.setVisibility(View.VISIBLE);
 231 //                    fileSizeV.setText(getFolderSizeHuman(FileStorageUtils.getDefaultSavePathFor(mAccount.name, file)));
 232 //                } else {
 233                     fileSizeV.setVisibility(View.INVISIBLE);
 234 //                }
 235
 236                 lastModV.setVisibility(View.VISIBLE);
 237                 lastModV.setText(showRelativeTimestamp(file));
 238                 checkBoxV.setVisibility(View.GONE);
 239                 view.findViewById(R.id.imageView3).setVisibility(View.GONE);
 240
 241                 if (checkIfFileIsSharedWithMe(file)) {
 242                     fileIcon.setImageResource(R.drawable.shared_with_me_folder);
 243                     sharedWithMeIconV.setVisibility(View.VISIBLE);
 244                 } else {
 245                     fileIcon.setImageResource(
 246                             DisplayUtils.getFileTypeIconId(file.getMimetype(), file.getFileName())
 247                     );
 248                 }
 249
 250                 // If folder is sharedByLink, icon folder must be changed to
 251                 // folder-public one
 252                 if (file.isShareByLink()) {
 253                     fileIcon.setImageResource(R.drawable.folder_public);
 254                 }
 255             }
 256
 257             if (file.isShareByLink()) {
 258                 sharedIconV.setVisibility(View.VISIBLE);
 259             } else {
 260                 sharedIconV.setVisibility(View.GONE);
 261             }
 262         }
 263
 264         return view;
 265     }
 266
 267     /**
 268      * Local Folder size in human readable format
 269      *
 270      * @param path
 271      *            String
 272      * @return Size in human readable format
 273      */
 274     private String getFolderSizeHuman(String path) {
 275
 276         File dir = new File(path);
 277
 278         if (dir.exists()) {
 279             long bytes = FileStorageUtils.getFolderSize(dir);
 280             return DisplayUtils.bytesToHumanReadable(bytes);
 281         }
 282
 283         return "0 B";
 284     }
 285
 286     /**
 287      * Local Folder size
 288      * @param dir File
 289      * @return Size in bytes
 290      */
 291     private long getFolderSize(File dir) {
 292         if (dir.exists()) {
 293             long result = 0;
 294             File[] fileList = dir.listFiles();
 295             for(int i = 0; i < fileList.length; i++) {
 296                 if(fileList[i].isDirectory()) {
 297                     result += getFolderSize(fileList[i]);
 298                 } else {
 299                     result += fileList[i].length();
 300                 }
 301             }
 302             return result;
 303         }
 304         return 0;
 305     }
 306
 307     @Override
 308     public int getViewTypeCount() {
 309         return 1;
 310     }
 311
 312     @Override
 313     public boolean hasStableIds() {
 314         return true;
 315     }
 316
 317     @Override
 318     public boolean isEmpty() {
 319         return (mFiles == null || mFiles.isEmpty());
 320     }
 321
 322     /**
 323      * Change the adapted directory for a new one
 324      * @param directory                 New file to adapt. Can be NULL, meaning
 325      *                                  "no content to adapt".
 326      * @param updatedStorageManager     Optional updated storage manager; used to replace
 327      *                                  mStorageManager if is different (and not NULL)
 328      */
 329     public void swapDirectory(OCFile directory, FileDataStorageManager updatedStorageManager) {
 330         mFile = directory;
 331         if (updatedStorageManager != null && updatedStorageManager != mStorageManager) {
 332             mStorageManager = updatedStorageManager;
 333             mAccount = AccountUtils.getCurrentOwnCloudAccount(mContext);
 334         }
 335         if (mStorageManager != null) {
 336             mFiles = mStorageManager.getFolderContent(mFile);
 337             if (mJustFolders) {
 338                 mFiles = getFolders(mFiles);
 339             }
 340         } else {
 341             mFiles = null;
 342         }
 343
 344         mFiles = FileStorageUtils.sortFolder(mFiles);
 345         notifyDataSetChanged();
 346     }
 347
 348
 349     /**
 350      * Filter for getting only the folders
 351      * @param files
 352      * @return Vector<OCFile>
 353      */
 354     public Vector<OCFile> getFolders(Vector<OCFile> files) {
 355         Vector<OCFile> ret = new Vector<OCFile>();
 356         OCFile current = null;
 357         for (int i=0; i<files.size(); i++) {
 358             current = files.get(i);
 359             if (current.isFolder()) {
 360                 ret.add(current);
 361             }
 362         }
 363         return ret;
 364     }
 365
 366
 367     /**
 368      * Check if parent folder does not include 'S' permission and if file/folder
 369      * is shared with me
 370      *
 371      * @param file: OCFile
 372      * @return boolean: True if it is shared with me and false if it is not
 373      */
 374     private boolean checkIfFileIsSharedWithMe(OCFile file) {
 375         return (mFile.getPermissions() != null
 376                 && !mFile.getPermissions().contains(PERMISSION_SHARED_WITH_ME)
 377                 && file.getPermissions() != null
 378                 && file.getPermissions().contains(PERMISSION_SHARED_WITH_ME));
 379     }
 380
 381     public void setSortOrder(Integer order, boolean ascending) {
 382         SharedPreferences.Editor editor = mAppPreferences.edit();
 383         editor.putInt("sortOrder", order);
 384         editor.putBoolean("sortAscending", ascending);
 385         editor.commit();
 386
 387         FileStorageUtils.mSortOrder = order;
 388         FileStorageUtils.mSortAscending = ascending;
 389
 390
 391         mFiles = FileStorageUtils.sortFolder(mFiles);
 392         notifyDataSetChanged();
 393
 394     }
 395
 396     private CharSequence showRelativeTimestamp(OCFile file){
 397         return DisplayUtils.getRelativeDateTimeString(mContext, file.getModificationTimestamp(),
 398                 DateUtils.SECOND_IN_MILLIS, DateUtils.WEEK_IN_MILLIS, 0);
 399     }
 400 }