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.graphics.BitmapFactory;
  32 import android.media.ThumbnailUtils;
  33 import android.preference.PreferenceManager;
  34 import android.text.format.DateUtils;
  35 import android.view.LayoutInflater;
  36 import android.view.View;
  37 import android.view.ViewGroup;
  38 import android.widget.BaseAdapter;
  39 import android.widget.Filter;
  40 import android.widget.Filterable;
  41 import android.widget.GridView;
  42 import android.widget.ImageView;
  43 import android.widget.ListAdapter;
  44 import android.widget.TextView;
  45
  46 import com.owncloud.android.R;
  47 import com.owncloud.android.authentication.AccountUtils;
  48 import com.owncloud.android.datamodel.FileDataStorageManager;
  49 import com.owncloud.android.datamodel.OCFile;
  50 import com.owncloud.android.datamodel.ThumbnailsCacheManager;
  51 import com.owncloud.android.files.services.FileDownloader.FileDownloaderBinder;
  52 import com.owncloud.android.files.services.FileUploader.FileUploaderBinder;
  53 import com.owncloud.android.ui.activity.ComponentsGetter;
  54 import com.owncloud.android.utils.DisplayUtils;
  55 import com.owncloud.android.utils.FileStorageUtils;
  56
  57
  58 /**
  59  * This Adapter populates a ListView with all files and folders in an ownCloud
  60  * instance.
  61  *
  62  * @author Bartek Przybylski
  63  * @author Tobias Kaminsky
  64  * @author David A. Velasco
  65  */
  66 public class FileListListAdapter extends BaseAdapter implements ListAdapter {
  67     private final static String PERMISSION_SHARED_WITH_ME = "S";
  68
  69     private Context mContext;
  70     private OCFile mFile = null;
  71     private Vector<OCFile> mFiles = null;
  72     private Vector<OCFile> mFilesOrig = new Vector<OCFile>();
  73     private boolean mJustFolders;
  74
  75     private FileDataStorageManager mStorageManager;
  76     private Account mAccount;
  77     private ComponentsGetter mTransferServiceGetter;
  78     private enum ViewType {LIST_ITEM, GRID_IMAGE, GRID_ITEM };
  79     private Integer mSortOrder;
  80     public static final Integer SORT_NAME = 0;
  81     public static final Integer SORT_DATE = 1;
  82     public static final Integer SORT_SIZE = 2;
  83     private Boolean mSortAscending;
  84     private SharedPreferences mAppPreferences;
  85
  86     public FileListListAdapter(
  87             boolean justFolders,
  88             Context context,
  89             ComponentsGetter transferServiceGetter
  90             ) {
  91
  92         mJustFolders = justFolders;
  93         mContext = context;
  94         mAccount = AccountUtils.getCurrentOwnCloudAccount(mContext);
  95         mTransferServiceGetter = transferServiceGetter;
  96
  97         mAppPreferences = PreferenceManager
  98                 .getDefaultSharedPreferences(mContext);
  99
 100         // Read sorting order, default to sort by name ascending
 101         FileStorageUtils.mSortOrder = mAppPreferences.getInt("sortOrder", 0);
 102         FileStorageUtils.mSortAscending = mAppPreferences.getBoolean("sortAscending", true);
 103
 104
 105         // initialise thumbnails cache on background thread
 106         new ThumbnailsCacheManager.InitDiskCacheTask().execute();
 107     }
 108
 109     @Override
 110     public boolean areAllItemsEnabled() {
 111         return true;
 112     }
 113
 114     @Override
 115     public boolean isEnabled(int position) {
 116         return true;
 117     }
 118
 119     @Override
 120     public int getCount() {
 121         return mFiles != null ? mFiles.size() : 0;
 122     }
 123
 124     @Override
 125     public Object getItem(int position) {
 126         if (mFiles == null || mFiles.size() <= position)
 127             return null;
 128         return mFiles.get(position);
 129     }
 130
 131     @Override
 132     public long getItemId(int position) {
 133         if (mFiles == null || mFiles.size() <= position)
 134             return 0;
 135         return mFiles.get(position).getFileId();
 136     }
 137
 138     @Override
 139     public int getItemViewType(int position) {
 140         return 0;
 141     }
 142
 143     @Override
 144     public View getView(int position, View convertView, ViewGroup parent) {
 145      // decide image vs. file view
 146         double countImages = 0;
 147         double countFiles = 0;
 148
 149         for (OCFile file : mFiles){
 150             if (!file.isFolder()){
 151                 countFiles++;
 152
 153                 if (file.isImage()){
 154                     countImages++;
 155                 }
 156             }
 157         }
 158
 159         // TODO threshold as constant in Preferences
 160         // > 50% Images --> image view
 161         boolean fileView = true;
 162         if ((countImages / countFiles) >= 0.5){
 163             fileView = false;
 164         } else {
 165             fileView = true;
 166         }
 167
 168         View view = convertView;
 169         OCFile file = null;
 170         LayoutInflater inflator = (LayoutInflater) mContext
 171                 .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
 172
 173         if (mFiles != null && mFiles.size() > position) {
 174             file = mFiles.get(position);
 175         }
 176
 177         // Find out which layout should be displayed
 178         ViewType viewType;
 179         if (fileView){
 180             viewType = ViewType.LIST_ITEM;
 181         } else if (file.isImage()){
 182             viewType = ViewType.GRID_IMAGE;
 183         } else {
 184             viewType = ViewType.GRID_ITEM;
 185         }
 186
 187         // Create View
 188         switch (viewType){
 189         case GRID_IMAGE:
 190             view = inflator.inflate(R.layout.grid_image, null);
 191             break;
 192         case GRID_ITEM:
 193             view = inflator.inflate(R.layout.grid_item, null);
 194             break;
 195         case LIST_ITEM:
 196             view = inflator.inflate(R.layout.list_item, null);
 197             break;
 198         }
 199
 200         view.invalidate();
 201
 202         if (file != null){
 203
 204             ImageView fileIcon = (ImageView) view.findViewById(R.id.thumbnail);
 205             TextView fileName;
 206             String name;
 207
 208             switch (viewType){
 209             case LIST_ITEM:
 210                 fileName = (TextView) view.findViewById(R.id.Filename);
 211                 name = file.getFileName();
 212                 fileName.setText(name);
 213
 214                 TextView fileSizeV = (TextView) view.findViewById(R.id.file_size);
 215                 TextView lastModV = (TextView) view.findViewById(R.id.last_mod);
 216                 ImageView checkBoxV = (ImageView) view.findViewById(R.id.custom_checkbox);
 217
 218                 lastModV.setVisibility(View.VISIBLE);
 219                 lastModV.setText(showRelativeTimestamp(file));
 220
 221                 checkBoxV.setVisibility(View.GONE);
 222
 223                 fileSizeV.setVisibility(View.VISIBLE);
 224                 fileSizeV.setText(DisplayUtils.bytesToHumanReadable(file.getFileLength()));
 225
 226                 ImageView sharedIconV = (ImageView) view.findViewById(R.id.sharedIcon);
 227
 228
 229                 if (file.isShareByLink()) {
 230                     sharedIconV.setVisibility(View.VISIBLE);
 231                 } else {
 232                     sharedIconV.setVisibility(View.GONE);
 233                 }
 234
 235                 ImageView localStateView = (ImageView) view.findViewById(R.id.localFileIndicator);
 236
 237                 if (!file.isFolder()) {
 238                     GridView parentList = (GridView)parent;
 239                     if (parentList.getChoiceMode() == GridView.CHOICE_MODE_NONE) {
 240                         checkBoxV.setVisibility(View.GONE);
 241                     } else {
 242                         if (parentList.isItemChecked(position)) {
 243                             checkBoxV.setImageResource(android.R.drawable.checkbox_on_background);
 244                         } else {
 245                             checkBoxV.setImageResource(android.R.drawable.checkbox_off_background);
 246                         }
 247                         checkBoxV.setVisibility(View.VISIBLE);
 248                     }
 249
 250                     localStateView.bringToFront();
 251                     FileDownloaderBinder downloaderBinder = mTransferServiceGetter.getFileDownloaderBinder();
 252                     FileUploaderBinder uploaderBinder = mTransferServiceGetter.getFileUploaderBinder();
 253                     if (downloaderBinder != null && downloaderBinder.isDownloading(mAccount, file)) {
 254                         localStateView.setImageResource(R.drawable.downloading_file_indicator);
 255                         localStateView.setVisibility(View.VISIBLE);
 256                     } else if (uploaderBinder != null && uploaderBinder.isUploading(mAccount, file)) {
 257                         localStateView.setImageResource(R.drawable.uploading_file_indicator);
 258                         localStateView.setVisibility(View.VISIBLE);
 259                     } else if (file.isDown()) {
 260                         localStateView.setImageResource(R.drawable.local_file_indicator);
 261                         localStateView.setVisibility(View.VISIBLE);
 262                     } else {
 263                         localStateView.setVisibility(View.INVISIBLE);
 264                     }
 265
 266                     ImageView sharedWithMeIconV = (ImageView) view.findViewById(R.id.sharedWithMeIcon);
 267                     if (checkIfFileIsSharedWithMe(file)) {
 268                         sharedWithMeIconV.setVisibility(View.VISIBLE);
 269                     } else {
 270                         sharedWithMeIconV.setVisibility(View.GONE);
 271                     }
 272                 } else {
 273                     localStateView.setVisibility(View.INVISIBLE);
 274                 }
 275                 break;
 276             case GRID_ITEM:
 277                 fileName = (TextView) view.findViewById(R.id.Filename);
 278                 name = file.getFileName();
 279                 fileName.setText(name);
 280                 break;
 281             case GRID_IMAGE:
 282                 break;
 283             }
 284
 285             // For all Views
 286
 287             // this if-else is needed even though favorite icon is visible by default
 288             // because android reuses views in listview
 289             if (!file.keepInSync()) {
 290                 view.findViewById(R.id.favoriteIcon).setVisibility(View.GONE);
 291             } else {
 292                 view.findViewById(R.id.favoriteIcon).setVisibility(View.VISIBLE);
 293             }
 294
 295             // No Folder
 296             if (!file.isFolder()) {
 297                 if (file.isImage() && file.getRemoteId() != null){
 298                     // Thumbnail in Cache?
 299                     Bitmap thumbnail = ThumbnailsCacheManager.getBitmapFromDiskCache(
 300                             String.valueOf(file.getRemoteId())
 301                             );
 302                     if (thumbnail != null && !file.needsUpdateThumbnail()){
 303                         fileIcon.setImageBitmap(thumbnail);
 304                     } else {
 305                         // generate new Thumbnail
 306                         if (ThumbnailsCacheManager.cancelPotentialWork(file, fileIcon)) {
 307                             final ThumbnailsCacheManager.ThumbnailGenerationTask task =
 308                                     new ThumbnailsCacheManager.ThumbnailGenerationTask(
 309                                             fileIcon, mStorageManager, mAccount
 310                                             );
 311                             if (thumbnail == null) {
 312                                 thumbnail = ThumbnailsCacheManager.mDefaultImg;
 313                             }
 314                             final ThumbnailsCacheManager.AsyncDrawable asyncDrawable =
 315                                     new ThumbnailsCacheManager.AsyncDrawable(
 316                                     mContext.getResources(),
 317                                     thumbnail,
 318                                     task
 319                                     );
 320                             fileIcon.setImageDrawable(asyncDrawable);
 321                             task.execute(file);
 322                         }
 323                     }
 324                 } else {
 325                     fileIcon.setImageResource(DisplayUtils.getFileTypeIconId(file.getMimetype(), file.getFileName()));
 326                 }
 327             } else {
 328                 // Folder
 329                 if (checkIfFileIsSharedWithMe(file)) {
 330                     fileIcon.setImageResource(R.drawable.shared_with_me_folder);
 331                 } else if (file.isShareByLink()) {
 332                     // If folder is sharedByLink, icon folder must be changed to
 333                     // folder-public one
 334                     fileIcon.setImageResource(R.drawable.folder_public);
 335                 } else {
 336                     fileIcon.setImageResource(
 337                             DisplayUtils.getFileTypeIconId(file.getMimetype(), file.getFileName())
 338                     );
 339                 }
 340             }
 341         }
 342
 343         return view;
 344     }
 345
 346     /**
 347      * Local Folder size in human readable format
 348      *
 349      * @param path
 350      *            String
 351      * @return Size in human readable format
 352      */
 353     private String getFolderSizeHuman(String path) {
 354
 355         File dir = new File(path);
 356
 357         if (dir.exists()) {
 358             long bytes = FileStorageUtils.getFolderSize(dir);
 359             return DisplayUtils.bytesToHumanReadable(bytes);
 360         }
 361
 362         return "0 B";
 363     }
 364
 365     /**
 366      * Local Folder size
 367      * @param dir File
 368      * @return Size in bytes
 369      */
 370     private long getFolderSize(File dir) {
 371         if (dir.exists()) {
 372             long result = 0;
 373             File[] fileList = dir.listFiles();
 374             for(int i = 0; i < fileList.length; i++) {
 375                 if(fileList[i].isDirectory()) {
 376                     result += getFolderSize(fileList[i]);
 377                 } else {
 378                     result += fileList[i].length();
 379                 }
 380             }
 381             return result;
 382         }
 383         return 0;
 384     }
 385
 386     @Override
 387     public int getViewTypeCount() {
 388         return 1;
 389     }
 390
 391     @Override
 392     public boolean hasStableIds() {
 393         return true;
 394     }
 395
 396     @Override
 397     public boolean isEmpty() {
 398         return (mFiles == null || mFiles.isEmpty());
 399     }
 400
 401     /**
 402      * Change the adapted directory for a new one
 403      * @param directory                 New file to adapt. Can be NULL, meaning
 404      *                                  "no content to adapt".
 405      * @param updatedStorageManager     Optional updated storage manager; used to replace
 406      *                                  mStorageManager if is different (and not NULL)
 407      */
 408     public void swapDirectory(OCFile directory, FileDataStorageManager updatedStorageManager) {
 409         mFile = directory;
 410         if (updatedStorageManager != null && updatedStorageManager != mStorageManager) {
 411             mStorageManager = updatedStorageManager;
 412             mAccount = AccountUtils.getCurrentOwnCloudAccount(mContext);
 413         }
 414         if (mStorageManager != null) {
 415             mFiles = mStorageManager.getFolderContent(mFile);
 416             mFilesOrig.clear();
 417             mFilesOrig.addAll(mFiles);
 418
 419             if (mJustFolders) {
 420                 mFiles = getFolders(mFiles);
 421             }
 422         } else {
 423             mFiles = null;
 424         }
 425
 426         mFiles = FileStorageUtils.sortFolder(mFiles);
 427         notifyDataSetChanged();
 428     }
 429
 430
 431     /**
 432      * Filter for getting only the folders
 433      * @param files
 434      * @return Vector<OCFile>
 435      */
 436     public Vector<OCFile> getFolders(Vector<OCFile> files) {
 437         Vector<OCFile> ret = new Vector<OCFile>();
 438         OCFile current = null;
 439         for (int i=0; i<files.size(); i++) {
 440             current = files.get(i);
 441             if (current.isFolder()) {
 442                 ret.add(current);
 443             }
 444         }
 445         return ret;
 446     }
 447
 448
 449     /**
 450      * Check if parent folder does not include 'S' permission and if file/folder
 451      * is shared with me
 452      *
 453      * @param file: OCFile
 454      * @return boolean: True if it is shared with me and false if it is not
 455      */
 456     private boolean checkIfFileIsSharedWithMe(OCFile file) {
 457         return (mFile.getPermissions() != null
 458                 && !mFile.getPermissions().contains(PERMISSION_SHARED_WITH_ME)
 459                 && file.getPermissions() != null
 460                 && file.getPermissions().contains(PERMISSION_SHARED_WITH_ME));
 461     }
 462
 463     /**
 464      * Sorts list by Date
 465      * @param sortAscending true: ascending, false: descending
 466      */
 467     private void sortByDate(boolean sortAscending){
 468         final Integer val;
 469         if (sortAscending){
 470             val = 1;
 471         } else {
 472             val = -1;
 473         }
 474
 475         Collections.sort(mFiles, new Comparator<OCFile>() {
 476             public int compare(OCFile o1, OCFile o2) {
 477                 if (o1.isFolder() && o2.isFolder()) {
 478                     Long obj1 = o1.getModificationTimestamp();
 479                     return val * obj1.compareTo(o2.getModificationTimestamp());
 480                 }
 481                 else if (o1.isFolder()) {
 482                     return -1;
 483                 } else if (o2.isFolder()) {
 484                     return 1;
 485                 } else if (o1.getModificationTimestamp() == 0 || o2.getModificationTimestamp() == 0){
 486                     return 0;
 487                 } else {
 488                     Long obj1 = o1.getModificationTimestamp();
 489                     return val * obj1.compareTo(o2.getModificationTimestamp());
 490                 }
 491             }
 492         });
 493     }
 494
 495     /**
 496      * Sorts list by Size
 497      * @param sortAscending true: ascending, false: descending
 498      */
 499     private void sortBySize(boolean sortAscending){
 500         final Integer val;
 501         if (sortAscending){
 502             val = 1;
 503         } else {
 504             val = -1;
 505         }
 506
 507         Collections.sort(mFiles, new Comparator<OCFile>() {
 508             public int compare(OCFile o1, OCFile o2) {
 509                 if (o1.isFolder() && o2.isFolder()) {
 510                     Long obj1 = getFolderSize(new File(FileStorageUtils.getDefaultSavePathFor(mAccount.name, o1)));
 511                     return val * obj1.compareTo(getFolderSize(new File(FileStorageUtils.getDefaultSavePathFor(mAccount.name, o2))));
 512                 }
 513                 else if (o1.isFolder()) {
 514                     return -1;
 515                 } else if (o2.isFolder()) {
 516                     return 1;
 517                 } else if (o1.getFileLength() == 0 || o2.getFileLength() == 0){
 518                     return 0;
 519                 } else {
 520                     Long obj1 = o1.getFileLength();
 521                     return val * obj1.compareTo(o2.getFileLength());
 522                 }
 523             }
 524         });
 525     }
 526
 527     /**
 528      * Sorts list by Name
 529      * @param sortAscending true: ascending, false: descending
 530      */
 531     private void sortByName(boolean sortAscending){
 532         final Integer val;
 533         if (sortAscending){
 534             val = 1;
 535         } else {
 536             val = -1;
 537         }
 538
 539         Collections.sort(mFiles, new Comparator<OCFile>() {
 540             public int compare(OCFile o1, OCFile o2) {
 541                 if (o1.isFolder() && o2.isFolder()) {
 542                     return val * o1.getRemotePath().toLowerCase().compareTo(o2.getRemotePath().toLowerCase());
 543                 } else if (o1.isFolder()) {
 544                     return -1;
 545                 } else if (o2.isFolder()) {
 546                     return 1;
 547                 }
 548                 return val * new AlphanumComparator().compare(o1, o2);
 549             }
 550         });
 551     }
 552
 553     public void setSortOrder(Integer order, boolean ascending) {
 554         SharedPreferences.Editor editor = mAppPreferences.edit();
 555         editor.putInt("sortOrder", order);
 556         editor.putBoolean("sortAscending", ascending);
 557         editor.commit();
 558
 559         FileStorageUtils.mSortOrder = order;
 560         FileStorageUtils.mSortAscending = ascending;
 561
 562
 563         mFiles = FileStorageUtils.sortFolder(mFiles);
 564         notifyDataSetChanged();
 565
 566     }
 567
 568     private CharSequence showRelativeTimestamp(OCFile file){
 569         return DisplayUtils.getRelativeDateTimeString(mContext, file.getModificationTimestamp(),
 570                 DateUtils.SECOND_IN_MILLIS, DateUtils.WEEK_IN_MILLIS, 0);
 571     }
 572 }