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.Collections;
  23 import java.util.Comparator;
  24 import java.util.Vector;
  25
  26 import third_parties.daveKoeller.AlphanumComparator;
  27 import android.accounts.Account;
  28 import android.content.Context;
  29 import android.content.SharedPreferences;
  30 import android.graphics.Bitmap;
  31 import android.preference.PreferenceManager;
  32 import android.view.LayoutInflater;
  33 import android.view.View;
  34 import android.view.ViewGroup;
  35 import android.widget.BaseAdapter;
  36 import android.widget.ImageView;
  37 import android.widget.ListAdapter;
  38 import android.widget.ListView;
  39 import android.widget.TextView;
  40
  41 import com.owncloud.android.R;
  42 import com.owncloud.android.authentication.AccountUtils;
  43 import com.owncloud.android.datamodel.FileDataStorageManager;
  44 import com.owncloud.android.datamodel.OCFile;
  45 import com.owncloud.android.datamodel.ThumbnailsCacheManager;
  46 import com.owncloud.android.datamodel.ThumbnailsCacheManager.AsyncDrawable;
  47 import com.owncloud.android.files.services.FileDownloader.FileDownloaderBinder;
  48 import com.owncloud.android.files.services.FileUploader.FileUploaderBinder;
  49 import com.owncloud.android.ui.activity.ComponentsGetter;
  50 import com.owncloud.android.utils.DisplayUtils;
  51 import com.owncloud.android.utils.FileStorageUtils;
  52
  53
  54 /**
  55  * This Adapter populates a ListView with all files and folders in an ownCloud
  56  * instance.
  57  *
  58  * @author Bartek Przybylski
  59  * @author Tobias Kaminsky
  60  * @author David A. Velasco
  61  */
  62 public class FileListListAdapter extends BaseAdapter implements ListAdapter {
  63     private final static String PERMISSION_SHARED_WITH_ME = "S";
  64
  65     private Context mContext;
  66     private OCFile mFile = null;
  67     private Vector<OCFile> mFiles = null;
  68     private boolean mJustFolders;
  69
  70     private FileDataStorageManager mStorageManager;
  71     private Account mAccount;
  72     private ComponentsGetter mTransferServiceGetter;
  73     private Integer mSortOrder;
  74     public static final Integer SORT_NAME = 0;
  75     public static final Integer SORT_DATE = 1;
  76     public static final Integer SORT_SIZE = 2;
  77     private Boolean mSortAscending;
  78     private SharedPreferences mAppPreferences;
  79
  80     public FileListListAdapter(
  81             boolean justFolders,
  82             Context context,
  83             ComponentsGetter transferServiceGetter
  84             ) {
  85
  86         mJustFolders = justFolders;
  87         mContext = context;
  88         mAccount = AccountUtils.getCurrentOwnCloudAccount(mContext);
  89
  90         mTransferServiceGetter = transferServiceGetter;
  91
  92         mAppPreferences = PreferenceManager
  93                 .getDefaultSharedPreferences(mContext);
  94
  95         // Read sorting order, default to sort by name ascending
  96         mSortOrder = mAppPreferences
  97                 .getInt("sortOrder", 0);
  98         mSortAscending = mAppPreferences.getBoolean("sortAscending", true);
  99
 100         // initialise thumbnails cache on background thread
 101         new ThumbnailsCacheManager.InitDiskCacheTask(mAccount, mContext).execute();
 102
 103     }
 104
 105     @Override
 106     public boolean areAllItemsEnabled() {
 107         return true;
 108     }
 109
 110     @Override
 111     public boolean isEnabled(int position) {
 112         return true;
 113     }
 114
 115     @Override
 116     public int getCount() {
 117         return mFiles != null ? mFiles.size() : 0;
 118     }
 119
 120     @Override
 121     public Object getItem(int position) {
 122         if (mFiles == null || mFiles.size() <= position)
 123             return null;
 124         return mFiles.get(position);
 125     }
 126
 127     @Override
 128     public long getItemId(int position) {
 129         if (mFiles == null || mFiles.size() <= position)
 130             return 0;
 131         return mFiles.get(position).getFileId();
 132     }
 133
 134     @Override
 135     public int getItemViewType(int position) {
 136         return 0;
 137     }
 138
 139     @Override
 140     public View getView(int position, View convertView, ViewGroup parent) {
 141         View view = convertView;
 142         if (view == null) {
 143             LayoutInflater inflator = (LayoutInflater) mContext
 144                     .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
 145             view = inflator.inflate(R.layout.list_item, null);
 146         }
 147
 148         if (mFiles != null && mFiles.size() > position) {
 149             OCFile file = mFiles.get(position);
 150             TextView fileName = (TextView) view.findViewById(R.id.Filename);
 151             String name = file.getFileName();
 152
 153             fileName.setText(name);
 154             ImageView fileIcon = (ImageView) view.findViewById(R.id.imageView1);
 155             fileIcon.setTag(file.getFileId());
 156             ImageView sharedIconV = (ImageView) view.findViewById(R.id.sharedIcon);
 157             ImageView sharedWithMeIconV = (ImageView) view.findViewById(R.id.sharedWithMeIcon);
 158             sharedWithMeIconV.setVisibility(View.GONE);
 159
 160             ImageView localStateView = (ImageView) view.findViewById(R.id.imageView2);
 161             localStateView.bringToFront();
 162             FileDownloaderBinder downloaderBinder =
 163                     mTransferServiceGetter.getFileDownloaderBinder();
 164             FileUploaderBinder uploaderBinder = mTransferServiceGetter.getFileUploaderBinder();
 165             if (downloaderBinder != null && downloaderBinder.isDownloading(mAccount, file)) {
 166                 localStateView.setImageResource(R.drawable.downloading_file_indicator);
 167                 localStateView.setVisibility(View.VISIBLE);
 168             } else if (uploaderBinder != null && uploaderBinder.isUploading(mAccount, file)) {
 169                 localStateView.setImageResource(R.drawable.uploading_file_indicator);
 170                 localStateView.setVisibility(View.VISIBLE);
 171             } else if (file.isDown()) {
 172                 localStateView.setImageResource(R.drawable.local_file_indicator);
 173                 localStateView.setVisibility(View.VISIBLE);
 174             } else {
 175                 localStateView.setVisibility(View.INVISIBLE);
 176             }
 177
 178             TextView fileSizeV = (TextView) view.findViewById(R.id.file_size);
 179             TextView lastModV = (TextView) view.findViewById(R.id.last_mod);
 180             ImageView checkBoxV = (ImageView) view.findViewById(R.id.custom_checkbox);
 181
 182             if (!file.isFolder()) {
 183                 fileSizeV.setVisibility(View.VISIBLE);
 184                 fileSizeV.setText(DisplayUtils.bytesToHumanReadable(file.getFileLength()));
 185                 lastModV.setVisibility(View.VISIBLE);
 186                 lastModV.setText(
 187                         DisplayUtils.unixTimeToHumanReadable(file.getModificationTimestamp())
 188                 );
 189                 // this if-else is needed even thoe fav icon is visible by default
 190                 // because android reuses views in listview
 191                 if (!file.keepInSync()) {
 192                     view.findViewById(R.id.imageView3).setVisibility(View.GONE);
 193                 } else {
 194                     view.findViewById(R.id.imageView3).setVisibility(View.VISIBLE);
 195                 }
 196
 197                 ListView parentList = (ListView)parent;
 198                 if (parentList.getChoiceMode() == ListView.CHOICE_MODE_NONE) {
 199                     checkBoxV.setVisibility(View.GONE);
 200                 } else {
 201                     if (parentList.isItemChecked(position)) {
 202                         checkBoxV.setImageResource(android.R.drawable.checkbox_on_background);
 203                     } else {
 204                         checkBoxV.setImageResource(android.R.drawable.checkbox_off_background);
 205                     }
 206                     checkBoxV.setVisibility(View.VISIBLE);
 207                 }
 208
 209                 // get Thumbnail if file is image
 210                 if (file.isImage() && file.getRemoteId() != null){
 211                      // Thumbnail in Cache?
 212                     Bitmap thumbnail = ThumbnailsCacheManager.getBitmapFromDiskCache(
 213                             String.valueOf(file.getRemoteId())
 214                     );
 215                     if (thumbnail != null && !file.needsUpdateThumbnail()){
 216                         fileIcon.setImageBitmap(thumbnail);
 217                     } else {
 218                         // generate new Thumbnail
 219                         if (ThumbnailsCacheManager.cancelPotentialWork(file, fileIcon)) {
 220                             final ThumbnailsCacheManager.ThumbnailGenerationTask task =
 221                                     new ThumbnailsCacheManager.ThumbnailGenerationTask(
 222                                             fileIcon, mStorageManager
 223                                     );
 224                             if (thumbnail == null) {
 225                                 thumbnail = ThumbnailsCacheManager.mDefaultImg;
 226                             }
 227                             final AsyncDrawable asyncDrawable = new AsyncDrawable(
 228                                     mContext.getResources(),
 229                                     thumbnail,
 230                                     task
 231                             );
 232                             fileIcon.setImageDrawable(asyncDrawable);
 233                             task.execute(file);
 234                         }
 235                     }
 236                 } else {
 237                     fileIcon.setImageResource(
 238                             DisplayUtils.getResourceId(file.getMimetype(), file.getFileName())
 239                     );
 240                 }
 241
 242                 if (checkIfFileIsSharedWithMe(file)) {
 243                     sharedWithMeIconV.setVisibility(View.VISIBLE);
 244                 }
 245             }
 246             else {
 247                   // TODO Re-enable when server supports folder-size calculation
 248 //                if (FileStorageUtils.getDefaultSavePathFor(mAccount.name, file) != null){
 249 //                    fileSizeV.setVisibility(View.VISIBLE);
 250 //                    fileSizeV.setText(getFolderSizeHuman(FileStorageUtils.getDefaultSavePathFor(mAccount.name, file)));
 251 //                } else {
 252                     fileSizeV.setVisibility(View.INVISIBLE);
 253 //                }
 254
 255                 lastModV.setVisibility(View.VISIBLE);
 256                 lastModV.setText(
 257                         DisplayUtils.unixTimeToHumanReadable(file.getModificationTimestamp())
 258                 );
 259                 checkBoxV.setVisibility(View.GONE);
 260                 view.findViewById(R.id.imageView3).setVisibility(View.GONE);
 261
 262                 if (checkIfFileIsSharedWithMe(file)) {
 263                     fileIcon.setImageResource(R.drawable.shared_with_me_folder);
 264                     sharedWithMeIconV.setVisibility(View.VISIBLE);
 265                 } else {
 266                     fileIcon.setImageResource(
 267                             DisplayUtils.getResourceId(file.getMimetype(), file.getFileName())
 268                     );
 269                 }
 270
 271                 // If folder is sharedByLink, icon folder must be changed to
 272                 // folder-public one
 273                 if (file.isShareByLink()) {
 274                     fileIcon.setImageResource(R.drawable.folder_public);
 275                 }
 276             }
 277
 278             if (file.isShareByLink()) {
 279                 sharedIconV.setVisibility(View.VISIBLE);
 280             } else {
 281                 sharedIconV.setVisibility(View.GONE);
 282             }
 283         }
 284
 285         return view;
 286     }
 287
 288     /**
 289      * Local Folder size in human readable format
 290      *
 291      * @param path
 292      *            String
 293      * @return Size in human readable format
 294      */
 295     private String getFolderSizeHuman(String path) {
 296
 297         File dir = new File(path);
 298
 299         if (dir.exists()) {
 300             long bytes = getFolderSize(dir);
 301             return DisplayUtils.bytesToHumanReadable(bytes);
 302         }
 303
 304         return "0 B";
 305     }
 306
 307     /**
 308      * Local Folder size
 309      * @param dir File
 310      * @return Size in bytes
 311      */
 312     private long getFolderSize(File dir) {
 313         if (dir.exists()) {
 314             long result = 0;
 315             File[] fileList = dir.listFiles();
 316             for(int i = 0; i < fileList.length; i++) {
 317                 if(fileList[i].isDirectory()) {
 318                     result += getFolderSize(fileList[i]);
 319                 } else {
 320                     result += fileList[i].length();
 321                 }
 322             }
 323             return result;
 324         }
 325         return 0;
 326     }
 327
 328     @Override
 329     public int getViewTypeCount() {
 330         return 1;
 331     }
 332
 333     @Override
 334     public boolean hasStableIds() {
 335         return true;
 336     }
 337
 338     @Override
 339     public boolean isEmpty() {
 340         return (mFiles == null || mFiles.isEmpty());
 341     }
 342
 343     /**
 344      * Change the adapted directory for a new one
 345      * @param directory                 New file to adapt. Can be NULL, meaning
 346      *                                  "no content to adapt".
 347      * @param updatedStorageManager     Optional updated storage manager; used to replace
 348      *                                  mStorageManager if is different (and not NULL)
 349      */
 350     public void swapDirectory(OCFile directory, FileDataStorageManager updatedStorageManager) {
 351         mFile = directory;
 352         if (updatedStorageManager != null && updatedStorageManager != mStorageManager) {
 353             mStorageManager = updatedStorageManager;
 354             mAccount = AccountUtils.getCurrentOwnCloudAccount(mContext);
 355         }
 356         if (mStorageManager != null) {
 357             mFiles = mStorageManager.getFolderContent(mFile);
 358             if (mJustFolders) {
 359                 mFiles = getFolders(mFiles);
 360             }
 361         } else {
 362             mFiles = null;
 363         }
 364
 365         sortDirectory();
 366     }
 367
 368     /**
 369      * Sorts all filenames, regarding last user decision
 370      */
 371     private void sortDirectory(){
 372         switch (mSortOrder){
 373         case 0:
 374             sortByName(mSortAscending);
 375             break;
 376         case 1:
 377             sortByDate(mSortAscending);
 378             break;
 379         case 2:
 380             sortBySize(mSortAscending);
 381             break;
 382         }
 383
 384         notifyDataSetChanged();
 385     }
 386
 387
 388     /**
 389      * Filter for getting only the folders
 390      * @param files
 391      * @return Vector<OCFile>
 392      */
 393     public Vector<OCFile> getFolders(Vector<OCFile> files) {
 394         Vector<OCFile> ret = new Vector<OCFile>();
 395         OCFile current = null;
 396         for (int i=0; i<files.size(); i++) {
 397             current = files.get(i);
 398             if (current.isFolder()) {
 399                 ret.add(current);
 400             }
 401         }
 402         return ret;
 403     }
 404
 405
 406     /**
 407      * Check if parent folder does not include 'S' permission and if file/folder
 408      * is shared with me
 409      *
 410      * @param file: OCFile
 411      * @return boolean: True if it is shared with me and false if it is not
 412      */
 413     private boolean checkIfFileIsSharedWithMe(OCFile file) {
 414         return (mFile.getPermissions() != null
 415                 && !mFile.getPermissions().contains(PERMISSION_SHARED_WITH_ME)
 416                 && file.getPermissions() != null
 417                 && file.getPermissions().contains(PERMISSION_SHARED_WITH_ME));
 418     }
 419
 420     /**
 421      * Sorts list by Date
 422      * @param sortAscending true: ascending, false: descending
 423      */
 424     private void sortByDate(boolean sortAscending){
 425         final Integer val;
 426         if (sortAscending){
 427             val = 1;
 428         } else {
 429             val = -1;
 430         }
 431
 432         Collections.sort(mFiles, new Comparator<OCFile>() {
 433             public int compare(OCFile o1, OCFile o2) {
 434                 if (o1.isFolder() && o2.isFolder()) {
 435                     Long obj1 = o1.getModificationTimestamp();
 436                     return val * obj1.compareTo(o2.getModificationTimestamp());
 437                 }
 438                 else if (o1.isFolder()) {
 439                     return -1;
 440                 } else if (o2.isFolder()) {
 441                     return 1;
 442                 } else if (o1.getModificationTimestamp() == 0 || o2.getModificationTimestamp() == 0){
 443                     return 0;
 444                 } else {
 445                     Long obj1 = o1.getModificationTimestamp();
 446                     return val * obj1.compareTo(o2.getModificationTimestamp());
 447                 }
 448             }
 449         });
 450     }
 451
 452     /**
 453      * Sorts list by Size
 454      * @param sortAscending true: ascending, false: descending
 455      */
 456     private void sortBySize(boolean sortAscending){
 457         final Integer val;
 458         if (sortAscending){
 459             val = 1;
 460         } else {
 461             val = -1;
 462         }
 463
 464         Collections.sort(mFiles, new Comparator<OCFile>() {
 465             public int compare(OCFile o1, OCFile o2) {
 466                 if (o1.isFolder() && o2.isFolder()) {
 467                     Long obj1 = getFolderSize(new File(FileStorageUtils.getDefaultSavePathFor(mAccount.name, o1)));
 468                     return val * obj1.compareTo(getFolderSize(new File(FileStorageUtils.getDefaultSavePathFor(mAccount.name, o2))));
 469                 }
 470                 else if (o1.isFolder()) {
 471                     return -1;
 472                 } else if (o2.isFolder()) {
 473                     return 1;
 474                 } else if (o1.getFileLength() == 0 || o2.getFileLength() == 0){
 475                     return 0;
 476                 } else {
 477                     Long obj1 = o1.getFileLength();
 478                     return val * obj1.compareTo(o2.getFileLength());
 479                 }
 480             }
 481         });
 482     }
 483
 484     /**
 485      * Sorts list by Name
 486      * @param sortAscending true: ascending, false: descending
 487      */
 488     private void sortByName(boolean sortAscending){
 489         final Integer val;
 490         if (sortAscending){
 491             val = 1;
 492         } else {
 493             val = -1;
 494         }
 495
 496         Collections.sort(mFiles, new Comparator<OCFile>() {
 497             public int compare(OCFile o1, OCFile o2) {
 498                 if (o1.isFolder() && o2.isFolder()) {
 499                     return val * o1.getRemotePath().toLowerCase().compareTo(o2.getRemotePath().toLowerCase());
 500                 } else if (o1.isFolder()) {
 501                     return -1;
 502                 } else if (o2.isFolder()) {
 503                     return 1;
 504                 }
 505                 return val * new AlphanumComparator().compare(o1, o2);
 506             }
 507         });
 508     }
 509
 510     public void setSortOrder(Integer order, boolean ascending) {
 511         SharedPreferences.Editor editor = mAppPreferences.edit();
 512         editor.putInt("sortOrder", order);
 513         editor.putBoolean("sortAscending", ascending);
 514         editor.commit();
 515
 516         mSortOrder = order;
 517         mSortAscending = ascending;
 518
 519         sortDirectory();
 520     }
 521 }