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.datamodel.ThumbnailsCacheManager.AsyncDrawable;
  52 import com.owncloud.android.files.services.FileDownloader.FileDownloaderBinder;
  53 import com.owncloud.android.files.services.FileUploader.FileUploaderBinder;
  54 import com.owncloud.android.lib.common.utils.Log_OC;
  55 import com.owncloud.android.ui.activity.ComponentsGetter;
  56 import com.owncloud.android.utils.DisplayUtils;
  57 import com.owncloud.android.utils.FileStorageUtils;
  58
  59
  60 /**
  61  * This Adapter populates a ListView with all files and folders in an ownCloud
  62  * instance.
  63  *
  64  * @author Bartek Przybylski
  65  * @author Tobias Kaminsky
  66  * @author David A. Velasco
  67  */
  68 public class FileListListAdapter extends BaseAdapter implements ListAdapter {
  69     private final static String PERMISSION_SHARED_WITH_ME = "S";
  70
  71     private Context mContext;
  72     private OCFile mFile = null;
  73     private Vector<OCFile> mFiles = null;
  74     private Vector<OCFile> mFilesOrig = new Vector<OCFile>();
  75     private boolean mJustFolders;
  76
  77     private FileDataStorageManager mStorageManager;
  78     private Account mAccount;
  79     private ComponentsGetter mTransferServiceGetter;
  80     private enum ViewType {LIST_ITEM, GRID_IMAGE, GRID_ITEM };
  81     private Integer mSortOrder;
  82     public static final Integer SORT_NAME = 0;
  83     public static final Integer SORT_DATE = 1;
  84     public static final Integer SORT_SIZE = 2;
  85     private Boolean mSortAscending;
  86     private SharedPreferences mAppPreferences;
  87
  88     public FileListListAdapter(
  89             boolean justFolders,
  90             Context context,
  91             ComponentsGetter transferServiceGetter
  92             ) {
  93
  94         mJustFolders = justFolders;
  95         mContext = context;
  96         mAccount = AccountUtils.getCurrentOwnCloudAccount(mContext);
  97         mTransferServiceGetter = transferServiceGetter;
  98
  99         mAppPreferences = PreferenceManager
 100                 .getDefaultSharedPreferences(mContext);
 101
 102         // Read sorting order, default to sort by name ascending
 103         mSortOrder = mAppPreferences
 104                 .getInt("sortOrder", 0);
 105         mSortAscending = mAppPreferences.getBoolean("sortAscending", true);
 106
 107         // initialise thumbnails cache on background thread
 108         new ThumbnailsCacheManager.InitDiskCacheTask().execute();
 109     }
 110
 111     @Override
 112     public boolean areAllItemsEnabled() {
 113         return true;
 114     }
 115
 116     @Override
 117     public boolean isEnabled(int position) {
 118         return true;
 119     }
 120
 121     @Override
 122     public int getCount() {
 123         return mFiles != null ? mFiles.size() : 0;
 124     }
 125
 126     @Override
 127     public Object getItem(int position) {
 128         if (mFiles == null || mFiles.size() <= position)
 129             return null;
 130         return mFiles.get(position);
 131     }
 132
 133     @Override
 134     public long getItemId(int position) {
 135         if (mFiles == null || mFiles.size() <= position)
 136             return 0;
 137         return mFiles.get(position).getFileId();
 138     }
 139
 140     @Override
 141     public int getItemViewType(int position) {
 142         return 0;
 143     }
 144
 145     @Override
 146     public View getView(int position, View convertView, ViewGroup parent) {
 147      // decide image vs. file view
 148         double countImages = 0;
 149         double countFiles = 0;
 150
 151         for (OCFile file : mFiles){
 152             if (!file.isFolder()){
 153                 countFiles++;
 154
 155                 if (file.isImage()){
 156                     countImages++;
 157                 }
 158             }
 159         }
 160
 161         // TODO threshold as constant in Preferences
 162         // > 50% Images --> image view
 163         boolean fileView = true;
 164         if ((countImages / countFiles) >= 0.5){
 165             fileView = false;
 166         } else {
 167             fileView = true;
 168         }
 169
 170         View view = convertView;
 171         OCFile file = null;
 172         LayoutInflater inflator = (LayoutInflater) mContext
 173                 .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
 174
 175         if (mFiles != null && mFiles.size() > position) {
 176             file = mFiles.get(position);
 177         }
 178
 179         // Find out which layout should be displayed
 180         ViewType viewType;
 181         if (fileView){
 182             viewType = ViewType.LIST_ITEM;
 183         } else if (file.isImage()){
 184             viewType = ViewType.GRID_IMAGE;
 185         } else {
 186             viewType = ViewType.GRID_ITEM;
 187         }
 188
 189         // Create View
 190         switch (viewType){
 191         case GRID_IMAGE:
 192             view = inflator.inflate(R.layout.grid_image, null);
 193             break;
 194         case GRID_ITEM:
 195             view = inflator.inflate(R.layout.grid_item, null);
 196             break;
 197         case LIST_ITEM:
 198             view = inflator.inflate(R.layout.list_item, null);
 199             break;
 200         }
 201
 202         view.invalidate();
 203
 204         if (file != null){
 205
 206             ImageView fileIcon = (ImageView) view.findViewById(R.id.thumbnail);
 207             TextView fileName;
 208             String name;
 209
 210             switch (viewType){
 211             case LIST_ITEM:
 212                 fileName = (TextView) view.findViewById(R.id.Filename);
 213                 name = file.getFileName();
 214                 fileName.setText(name);
 215
 216                 TextView fileSizeV = (TextView) view.findViewById(R.id.file_size);
 217                 TextView lastModV = (TextView) view.findViewById(R.id.last_mod);
 218                 ImageView checkBoxV = (ImageView) view.findViewById(R.id.custom_checkbox);
 219
 220                 lastModV.setVisibility(View.VISIBLE);
 221                 lastModV.setText(showRelativeTimestamp(file));
 222
 223                 checkBoxV.setVisibility(View.GONE);
 224
 225                 fileSizeV.setVisibility(View.VISIBLE);
 226                 fileSizeV.setText(DisplayUtils.bytesToHumanReadable(file.getFileLength()));
 227
 228                 ImageView sharedIconV = (ImageView) view.findViewById(R.id.sharedIcon);
 229
 230
 231                 if (file.isShareByLink()) {
 232                     sharedIconV.setVisibility(View.VISIBLE);
 233                 } else {
 234                     sharedIconV.setVisibility(View.GONE);
 235                 }
 236
 237                 ImageView localStateView = (ImageView) view.findViewById(R.id.localFileIndicator);
 238
 239                 if (!file.isFolder()) {
 240                     GridView parentList = (GridView)parent;
 241                     if (parentList.getChoiceMode() == GridView.CHOICE_MODE_NONE) {
 242                         checkBoxV.setVisibility(View.GONE);
 243                     } else {
 244                         if (parentList.isItemChecked(position)) {
 245                             checkBoxV.setImageResource(android.R.drawable.checkbox_on_background);
 246                         } else {
 247                             checkBoxV.setImageResource(android.R.drawable.checkbox_off_background);
 248                         }
 249                         checkBoxV.setVisibility(View.VISIBLE);
 250                     }
 251
 252                     localStateView.bringToFront();
 253                     FileDownloaderBinder downloaderBinder = mTransferServiceGetter.getFileDownloaderBinder();
 254                     FileUploaderBinder uploaderBinder = mTransferServiceGetter.getFileUploaderBinder();
 255                     if (downloaderBinder != null && downloaderBinder.isDownloading(mAccount, file)) {
 256                         localStateView.setImageResource(R.drawable.downloading_file_indicator);
 257                         localStateView.setVisibility(View.VISIBLE);
 258                     } else if (uploaderBinder != null && uploaderBinder.isUploading(mAccount, file)) {
 259                         localStateView.setImageResource(R.drawable.uploading_file_indicator);
 260                         localStateView.setVisibility(View.VISIBLE);
 261                     } else if (file.isDown()) {
 262                         localStateView.setImageResource(R.drawable.local_file_indicator);
 263                         localStateView.setVisibility(View.VISIBLE);
 264                     } else {
 265                         localStateView.setVisibility(View.INVISIBLE);
 266                     }
 267
 268                     ImageView sharedWithMeIconV = (ImageView) view.findViewById(R.id.sharedWithMeIcon);
 269                     if (checkIfFileIsSharedWithMe(file)) {
 270                         sharedWithMeIconV.setVisibility(View.VISIBLE);
 271                     } else {
 272                         sharedWithMeIconV.setVisibility(View.GONE);
 273                     }
 274                 } else {
 275                     localStateView.setVisibility(View.INVISIBLE);
 276                 }
 277                 break;
 278             case GRID_ITEM:
 279                 fileName = (TextView) view.findViewById(R.id.Filename);
 280                 name = file.getFileName();
 281                 fileName.setText(name);
 282                 break;
 283             case GRID_IMAGE:
 284                 break;
 285             }
 286
 287             // For all Views
 288
 289             // this if-else is needed even though favorite icon is visible by default
 290             // because android reuses views in listview
 291             if (!file.keepInSync()) {
 292                 view.findViewById(R.id.favoriteIcon).setVisibility(View.GONE);
 293             } else {
 294                 view.findViewById(R.id.favoriteIcon).setVisibility(View.VISIBLE);
 295             }
 296
 297             // No Folder
 298             if (!file.isFolder()) {
 299                 if (file.isImage() && file.getRemoteId() != null){
 300                     // Thumbnail in Cache?
 301                     Bitmap thumbnail = ThumbnailsCacheManager.getBitmapFromDiskCache(
 302                             String.valueOf(file.getRemoteId())
 303                             );
 304                     if (thumbnail != null && !file.needsUpdateThumbnail()){
 305                         fileIcon.setImageBitmap(thumbnail);
 306                     } else {
 307                         // generate new Thumbnail
 308                         if (ThumbnailsCacheManager.cancelPotentialWork(file, fileIcon)) {
 309                             final ThumbnailsCacheManager.ThumbnailGenerationTask task =
 310                                     new ThumbnailsCacheManager.ThumbnailGenerationTask(
 311                                             fileIcon, mStorageManager, mAccount
 312                                             );
 313                             if (thumbnail == null) {
 314                                 thumbnail = ThumbnailsCacheManager.mDefaultImg;
 315                             }
 316                             final AsyncDrawable asyncDrawable = new AsyncDrawable(
 317                                     mContext.getResources(),
 318                                     thumbnail,
 319                                     task
 320                                     );
 321                             fileIcon.setImageDrawable(asyncDrawable);
 322                             task.execute(file);
 323
 324                         }
 325                     }
 326                 }
 327                 else {
 328                     fileIcon.setImageResource(DisplayUtils.getResourceId(file.getMimetype(), file.getFileName()));
 329                 }
 330             } else {
 331                 // Folder
 332                 if (checkIfFileIsSharedWithMe(file)) {
 333                     fileIcon.setImageResource(R.drawable.shared_with_me_folder);
 334                 } else if (file.isShareByLink()) {
 335                     // If folder is sharedByLink, icon folder must be changed to
 336                     // folder-public one
 337                     fileIcon.setImageResource(R.drawable.folder_public);
 338                 } else {
 339                     fileIcon.setImageResource(DisplayUtils.getResourceId(file.getMimetype(), file.getFileName()));
 340                 }
 341             }
 342         }
 343
 344         return view;
 345     }
 346
 347     /**
 348      * Local Folder size in human readable format
 349      *
 350      * @param path
 351      *            String
 352      * @return Size in human readable format
 353      */
 354     private String getFolderSizeHuman(String path) {
 355
 356         File dir = new File(path);
 357
 358         if (dir.exists()) {
 359             long bytes = getFolderSize(dir);
 360             return DisplayUtils.bytesToHumanReadable(bytes);
 361         }
 362
 363         return "0 B";
 364     }
 365
 366     /**
 367      * Local Folder size
 368      * @param dir File
 369      * @return Size in bytes
 370      */
 371     private long getFolderSize(File dir) {
 372         if (dir.exists()) {
 373             long result = 0;
 374             File[] fileList = dir.listFiles();
 375             for(int i = 0; i < fileList.length; i++) {
 376                 if(fileList[i].isDirectory()) {
 377                     result += getFolderSize(fileList[i]);
 378                 } else {
 379                     result += fileList[i].length();
 380                 }
 381             }
 382             return result;
 383         }
 384         return 0;
 385     }
 386
 387     @Override
 388     public int getViewTypeCount() {
 389         return 1;
 390     }
 391
 392     @Override
 393     public boolean hasStableIds() {
 394         return true;
 395     }
 396
 397     @Override
 398     public boolean isEmpty() {
 399         return (mFiles == null || mFiles.isEmpty());
 400     }
 401
 402     /**
 403      * Change the adapted directory for a new one
 404      * @param directory                 New file to adapt. Can be NULL, meaning
 405      *                                  "no content to adapt".
 406      * @param updatedStorageManager     Optional updated storage manager; used to replace
 407      *                                  mStorageManager if is different (and not NULL)
 408      */
 409     public void swapDirectory(OCFile directory, FileDataStorageManager updatedStorageManager) {
 410         mFile = directory;
 411         if (updatedStorageManager != null && updatedStorageManager != mStorageManager) {
 412             mStorageManager = updatedStorageManager;
 413             mAccount = AccountUtils.getCurrentOwnCloudAccount(mContext);
 414         }
 415         if (mStorageManager != null) {
 416             mFiles = mStorageManager.getFolderContent(mFile);
 417             mFilesOrig.clear();
 418             mFilesOrig.addAll(mFiles);
 419
 420             if (mJustFolders) {
 421                 mFiles = getFolders(mFiles);
 422             }
 423         } else {
 424             mFiles = null;
 425         }
 426
 427         sortDirectory();
 428     }
 429
 430     /**
 431      * Sorts all filenames, regarding last user decision
 432      */
 433     private void sortDirectory(){
 434         switch (mSortOrder){
 435         case 0:
 436             sortByName(mSortAscending);
 437             break;
 438         case 1:
 439             sortByDate(mSortAscending);
 440             break;
 441         case 2:
 442             sortBySize(mSortAscending);
 443             break;
 444         }
 445
 446         notifyDataSetChanged();
 447     }
 448
 449
 450     /**
 451      * Filter for getting only the folders
 452      * @param files
 453      * @return Vector<OCFile>
 454      */
 455     public Vector<OCFile> getFolders(Vector<OCFile> files) {
 456         Vector<OCFile> ret = new Vector<OCFile>();
 457         OCFile current = null;
 458         for (int i=0; i<files.size(); i++) {
 459             current = files.get(i);
 460             if (current.isFolder()) {
 461                 ret.add(current);
 462             }
 463         }
 464         return ret;
 465     }
 466
 467
 468     /**
 469      * Check if parent folder does not include 'S' permission and if file/folder
 470      * is shared with me
 471      *
 472      * @param file: OCFile
 473      * @return boolean: True if it is shared with me and false if it is not
 474      */
 475     private boolean checkIfFileIsSharedWithMe(OCFile file) {
 476         return (mFile.getPermissions() != null
 477                 && !mFile.getPermissions().contains(PERMISSION_SHARED_WITH_ME)
 478                 && file.getPermissions() != null
 479                 && file.getPermissions().contains(PERMISSION_SHARED_WITH_ME));
 480     }
 481
 482     /**
 483      * Sorts list by Date
 484      * @param sortAscending true: ascending, false: descending
 485      */
 486     private void sortByDate(boolean sortAscending){
 487         final Integer val;
 488         if (sortAscending){
 489             val = 1;
 490         } else {
 491             val = -1;
 492         }
 493
 494         Collections.sort(mFiles, new Comparator<OCFile>() {
 495             public int compare(OCFile o1, OCFile o2) {
 496                 if (o1.isFolder() && o2.isFolder()) {
 497                     Long obj1 = o1.getModificationTimestamp();
 498                     return val * obj1.compareTo(o2.getModificationTimestamp());
 499                 }
 500                 else if (o1.isFolder()) {
 501                     return -1;
 502                 } else if (o2.isFolder()) {
 503                     return 1;
 504                 } else if (o1.getModificationTimestamp() == 0 || o2.getModificationTimestamp() == 0){
 505                     return 0;
 506                 } else {
 507                     Long obj1 = o1.getModificationTimestamp();
 508                     return val * obj1.compareTo(o2.getModificationTimestamp());
 509                 }
 510             }
 511         });
 512     }
 513
 514     /**
 515      * Sorts list by Size
 516      * @param sortAscending true: ascending, false: descending
 517      */
 518     private void sortBySize(boolean sortAscending){
 519         final Integer val;
 520         if (sortAscending){
 521             val = 1;
 522         } else {
 523             val = -1;
 524         }
 525
 526         Collections.sort(mFiles, new Comparator<OCFile>() {
 527             public int compare(OCFile o1, OCFile o2) {
 528                 if (o1.isFolder() && o2.isFolder()) {
 529                     Long obj1 = getFolderSize(new File(FileStorageUtils.getDefaultSavePathFor(mAccount.name, o1)));
 530                     return val * obj1.compareTo(getFolderSize(new File(FileStorageUtils.getDefaultSavePathFor(mAccount.name, o2))));
 531                 }
 532                 else if (o1.isFolder()) {
 533                     return -1;
 534                 } else if (o2.isFolder()) {
 535                     return 1;
 536                 } else if (o1.getFileLength() == 0 || o2.getFileLength() == 0){
 537                     return 0;
 538                 } else {
 539                     Long obj1 = o1.getFileLength();
 540                     return val * obj1.compareTo(o2.getFileLength());
 541                 }
 542             }
 543         });
 544     }
 545
 546     /**
 547      * Sorts list by Name
 548      * @param sortAscending true: ascending, false: descending
 549      */
 550     private void sortByName(boolean sortAscending){
 551         final Integer val;
 552         if (sortAscending){
 553             val = 1;
 554         } else {
 555             val = -1;
 556         }
 557
 558         Collections.sort(mFiles, new Comparator<OCFile>() {
 559             public int compare(OCFile o1, OCFile o2) {
 560                 if (o1.isFolder() && o2.isFolder()) {
 561                     return val * o1.getRemotePath().toLowerCase().compareTo(o2.getRemotePath().toLowerCase());
 562                 } else if (o1.isFolder()) {
 563                     return -1;
 564                 } else if (o2.isFolder()) {
 565                     return 1;
 566                 }
 567                 return val * new AlphanumComparator().compare(o1, o2);
 568             }
 569         });
 570     }
 571
 572     public void setSortOrder(Integer order, boolean ascending) {
 573         SharedPreferences.Editor editor = mAppPreferences.edit();
 574         editor.putInt("sortOrder", order);
 575         editor.putBoolean("sortAscending", ascending);
 576         editor.commit();
 577
 578         mSortOrder = order;
 579         mSortAscending = ascending;
 580
 581         sortDirectory();
 582     }
 583
 584     private CharSequence showRelativeTimestamp(OCFile file){
 585         return DisplayUtils.getRelativeDateTimeString(mContext, file.getModificationTimestamp(),
 586                 DateUtils.SECOND_IN_MILLIS, DateUtils.WEEK_IN_MILLIS, 0);
 587     }
 588 }