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
 146         boolean fileView = DisplayUtils.decideViewLayout(mFiles);
 147
 148         View view = convertView;
 149         OCFile file = null;
 150         LayoutInflater inflator = (LayoutInflater) mContext
 151                 .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
 152
 153         if (mFiles != null && mFiles.size() > position) {
 154             file = mFiles.get(position);
 155         }
 156
 157         // Find out which layout should be displayed
 158         ViewType viewType;
 159         if (!fileView){
 160             viewType = ViewType.LIST_ITEM;
 161         } else if (file.isImage()){
 162             viewType = ViewType.GRID_IMAGE;
 163         } else {
 164             viewType = ViewType.GRID_ITEM;
 165         }
 166
 167         // Create View
 168         switch (viewType){
 169         case GRID_IMAGE:
 170             view = inflator.inflate(R.layout.grid_image, null);
 171             break;
 172         case GRID_ITEM:
 173             view = inflator.inflate(R.layout.grid_item, null);
 174             break;
 175         case LIST_ITEM:
 176             view = inflator.inflate(R.layout.list_item, null);
 177             break;
 178         }
 179
 180         view.invalidate();
 181
 182         if (file != null){
 183
 184             ImageView fileIcon = (ImageView) view.findViewById(R.id.thumbnail);
 185             TextView fileName;
 186             String name;
 187
 188             switch (viewType){
 189             case LIST_ITEM:
 190                 fileName = (TextView) view.findViewById(R.id.Filename);
 191                 name = file.getFileName();
 192                 fileName.setText(name);
 193
 194                 TextView fileSizeV = (TextView) view.findViewById(R.id.file_size);
 195                 TextView lastModV = (TextView) view.findViewById(R.id.last_mod);
 196                 ImageView checkBoxV = (ImageView) view.findViewById(R.id.custom_checkbox);
 197
 198                 lastModV.setVisibility(View.VISIBLE);
 199                 lastModV.setText(showRelativeTimestamp(file));
 200
 201                 checkBoxV.setVisibility(View.GONE);
 202
 203                 fileSizeV.setVisibility(View.VISIBLE);
 204                 fileSizeV.setText(DisplayUtils.bytesToHumanReadable(file.getFileLength()));
 205
 206                 ImageView sharedIconV = (ImageView) view.findViewById(R.id.sharedIcon);
 207
 208
 209                 if (file.isShareByLink()) {
 210                     sharedIconV.setVisibility(View.VISIBLE);
 211                 } else {
 212                     sharedIconV.setVisibility(View.GONE);
 213                 }
 214
 215                 ImageView localStateView = (ImageView) view.findViewById(R.id.localFileIndicator);
 216
 217                 if (!file.isFolder()) {
 218                     GridView parentList = (GridView)parent;
 219                     if (parentList.getChoiceMode() == GridView.CHOICE_MODE_NONE) {
 220                         checkBoxV.setVisibility(View.GONE);
 221                     } else {
 222                         if (parentList.isItemChecked(position)) {
 223                             checkBoxV.setImageResource(android.R.drawable.checkbox_on_background);
 224                         } else {
 225                             checkBoxV.setImageResource(android.R.drawable.checkbox_off_background);
 226                         }
 227                         checkBoxV.setVisibility(View.VISIBLE);
 228                     }
 229
 230                     localStateView.bringToFront();
 231                     FileDownloaderBinder downloaderBinder = mTransferServiceGetter.getFileDownloaderBinder();
 232                     FileUploaderBinder uploaderBinder = mTransferServiceGetter.getFileUploaderBinder();
 233                     if (downloaderBinder != null && downloaderBinder.isDownloading(mAccount, file)) {
 234                         localStateView.setImageResource(R.drawable.downloading_file_indicator);
 235                         localStateView.setVisibility(View.VISIBLE);
 236                     } else if (uploaderBinder != null && uploaderBinder.isUploading(mAccount, file)) {
 237                         localStateView.setImageResource(R.drawable.uploading_file_indicator);
 238                         localStateView.setVisibility(View.VISIBLE);
 239                     } else if (file.isDown()) {
 240                         localStateView.setImageResource(R.drawable.local_file_indicator);
 241                         localStateView.setVisibility(View.VISIBLE);
 242                     } else {
 243                         localStateView.setVisibility(View.INVISIBLE);
 244                     }
 245
 246                     ImageView sharedWithMeIconV = (ImageView) view.findViewById(R.id.sharedWithMeIcon);
 247                     if (checkIfFileIsSharedWithMe(file)) {
 248                         sharedWithMeIconV.setVisibility(View.VISIBLE);
 249                     } else {
 250                         sharedWithMeIconV.setVisibility(View.GONE);
 251                     }
 252                 } else { //Folder
 253                     fileSizeV.setVisibility(View.INVISIBLE);
 254                     localStateView.setVisibility(View.INVISIBLE);
 255                 }
 256                 break;
 257             case GRID_ITEM:
 258                 fileName = (TextView) view.findViewById(R.id.Filename);
 259                 name = file.getFileName();
 260                 fileName.setText(name);
 261                 break;
 262             case GRID_IMAGE:
 263                 break;
 264             }
 265
 266             // For all Views
 267
 268             // this if-else is needed even though favorite icon is visible by default
 269             // because android reuses views in listview
 270             if (!file.keepInSync()) {
 271                 view.findViewById(R.id.favoriteIcon).setVisibility(View.GONE);
 272             } else {
 273                 view.findViewById(R.id.favoriteIcon).setVisibility(View.VISIBLE);
 274             }
 275
 276             // No Folder
 277             if (!file.isFolder()) {
 278                 if (file.isImage() && file.getRemoteId() != null){
 279                     // Thumbnail in Cache?
 280                     Bitmap thumbnail = ThumbnailsCacheManager.getBitmapFromDiskCache(
 281                             String.valueOf(file.getRemoteId())
 282                             );
 283                     if (thumbnail != null && !file.needsUpdateThumbnail()){
 284                         fileIcon.setImageBitmap(thumbnail);
 285                     } else {
 286                         // generate new Thumbnail
 287                         if (ThumbnailsCacheManager.cancelPotentialWork(file, fileIcon)) {
 288                             final ThumbnailsCacheManager.ThumbnailGenerationTask task =
 289                                     new ThumbnailsCacheManager.ThumbnailGenerationTask(
 290                                             fileIcon, mStorageManager, mAccount
 291                                             );
 292                             if (thumbnail == null) {
 293                                 thumbnail = ThumbnailsCacheManager.mDefaultImg;
 294                             }
 295                             final ThumbnailsCacheManager.AsyncDrawable asyncDrawable =
 296                                     new ThumbnailsCacheManager.AsyncDrawable(
 297                                     mContext.getResources(),
 298                                     thumbnail,
 299                                     task
 300                                     );
 301                             fileIcon.setImageDrawable(asyncDrawable);
 302                             task.execute(file);
 303                         }
 304                     }
 305                 } else {
 306                     fileIcon.setImageResource(DisplayUtils.getFileTypeIconId(file.getMimetype(), file.getFileName()));
 307                 }
 308             } else {
 309                 // Folder
 310                 if (checkIfFileIsSharedWithMe(file)) {
 311                     fileIcon.setImageResource(R.drawable.shared_with_me_folder);
 312                 } else if (file.isShareByLink()) {
 313                     // If folder is sharedByLink, icon folder must be changed to
 314                     // folder-public one
 315                     fileIcon.setImageResource(R.drawable.folder_public);
 316                 } else {
 317                     fileIcon.setImageResource(
 318                             DisplayUtils.getFileTypeIconId(file.getMimetype(), file.getFileName())
 319                     );
 320                 }
 321             }
 322         }
 323
 324         return view;
 325     }
 326
 327     /**
 328      * Local Folder size in human readable format
 329      *
 330      * @param path
 331      *            String
 332      * @return Size in human readable format
 333      */
 334     private String getFolderSizeHuman(String path) {
 335
 336         File dir = new File(path);
 337
 338         if (dir.exists()) {
 339             long bytes = FileStorageUtils.getFolderSize(dir);
 340             return DisplayUtils.bytesToHumanReadable(bytes);
 341         }
 342
 343         return "0 B";
 344     }
 345
 346     /**
 347      * Local Folder size
 348      * @param dir File
 349      * @return Size in bytes
 350      */
 351     private long getFolderSize(File dir) {
 352         if (dir.exists()) {
 353             long result = 0;
 354             File[] fileList = dir.listFiles();
 355             for(int i = 0; i < fileList.length; i++) {
 356                 if(fileList[i].isDirectory()) {
 357                     result += getFolderSize(fileList[i]);
 358                 } else {
 359                     result += fileList[i].length();
 360                 }
 361             }
 362             return result;
 363         }
 364         return 0;
 365     }
 366
 367     @Override
 368     public int getViewTypeCount() {
 369         return 1;
 370     }
 371
 372     @Override
 373     public boolean hasStableIds() {
 374         return true;
 375     }
 376
 377     @Override
 378     public boolean isEmpty() {
 379         return (mFiles == null || mFiles.isEmpty());
 380     }
 381
 382     /**
 383      * Change the adapted directory for a new one
 384      * @param directory                 New file to adapt. Can be NULL, meaning
 385      *                                  "no content to adapt".
 386      * @param updatedStorageManager     Optional updated storage manager; used to replace
 387      *                                  mStorageManager if is different (and not NULL)
 388      */
 389     public void swapDirectory(OCFile directory, FileDataStorageManager updatedStorageManager) {
 390         mFile = directory;
 391         if (updatedStorageManager != null && updatedStorageManager != mStorageManager) {
 392             mStorageManager = updatedStorageManager;
 393             mAccount = AccountUtils.getCurrentOwnCloudAccount(mContext);
 394         }
 395         if (mStorageManager != null) {
 396             mFiles = mStorageManager.getFolderContent(mFile);
 397             mFilesOrig.clear();
 398             mFilesOrig.addAll(mFiles);
 399
 400             if (mJustFolders) {
 401                 mFiles = getFolders(mFiles);
 402             }
 403         } else {
 404             mFiles = null;
 405         }
 406
 407         mFiles = FileStorageUtils.sortFolder(mFiles);
 408         notifyDataSetChanged();
 409     }
 410
 411
 412     /**
 413      * Filter for getting only the folders
 414      * @param files
 415      * @return Vector<OCFile>
 416      */
 417     public Vector<OCFile> getFolders(Vector<OCFile> files) {
 418         Vector<OCFile> ret = new Vector<OCFile>();
 419         OCFile current = null;
 420         for (int i=0; i<files.size(); i++) {
 421             current = files.get(i);
 422             if (current.isFolder()) {
 423                 ret.add(current);
 424             }
 425         }
 426         return ret;
 427     }
 428
 429
 430     /**
 431      * Check if parent folder does not include 'S' permission and if file/folder
 432      * is shared with me
 433      *
 434      * @param file: OCFile
 435      * @return boolean: True if it is shared with me and false if it is not
 436      */
 437     private boolean checkIfFileIsSharedWithMe(OCFile file) {
 438         return (mFile.getPermissions() != null
 439                 && !mFile.getPermissions().contains(PERMISSION_SHARED_WITH_ME)
 440                 && file.getPermissions() != null
 441                 && file.getPermissions().contains(PERMISSION_SHARED_WITH_ME));
 442     }
 443
 444     /**
 445      * Sorts list by Date
 446      * @param sortAscending true: ascending, false: descending
 447      */
 448     private void sortByDate(boolean sortAscending){
 449         final Integer val;
 450         if (sortAscending){
 451             val = 1;
 452         } else {
 453             val = -1;
 454         }
 455
 456         Collections.sort(mFiles, new Comparator<OCFile>() {
 457             public int compare(OCFile o1, OCFile o2) {
 458                 if (o1.isFolder() && o2.isFolder()) {
 459                     Long obj1 = o1.getModificationTimestamp();
 460                     return val * obj1.compareTo(o2.getModificationTimestamp());
 461                 }
 462                 else if (o1.isFolder()) {
 463                     return -1;
 464                 } else if (o2.isFolder()) {
 465                     return 1;
 466                 } else if (o1.getModificationTimestamp() == 0 || o2.getModificationTimestamp() == 0){
 467                     return 0;
 468                 } else {
 469                     Long obj1 = o1.getModificationTimestamp();
 470                     return val * obj1.compareTo(o2.getModificationTimestamp());
 471                 }
 472             }
 473         });
 474     }
 475
 476     /**
 477      * Sorts list by Size
 478      * @param sortAscending true: ascending, false: descending
 479      */
 480     private void sortBySize(boolean sortAscending){
 481         final Integer val;
 482         if (sortAscending){
 483             val = 1;
 484         } else {
 485             val = -1;
 486         }
 487
 488         Collections.sort(mFiles, new Comparator<OCFile>() {
 489             public int compare(OCFile o1, OCFile o2) {
 490                 if (o1.isFolder() && o2.isFolder()) {
 491                     Long obj1 = getFolderSize(new File(FileStorageUtils.getDefaultSavePathFor(mAccount.name, o1)));
 492                     return val * obj1.compareTo(getFolderSize(new File(FileStorageUtils.getDefaultSavePathFor(mAccount.name, o2))));
 493                 }
 494                 else if (o1.isFolder()) {
 495                     return -1;
 496                 } else if (o2.isFolder()) {
 497                     return 1;
 498                 } else if (o1.getFileLength() == 0 || o2.getFileLength() == 0){
 499                     return 0;
 500                 } else {
 501                     Long obj1 = o1.getFileLength();
 502                     return val * obj1.compareTo(o2.getFileLength());
 503                 }
 504             }
 505         });
 506     }
 507
 508     /**
 509      * Sorts list by Name
 510      * @param sortAscending true: ascending, false: descending
 511      */
 512     private void sortByName(boolean sortAscending){
 513         final Integer val;
 514         if (sortAscending){
 515             val = 1;
 516         } else {
 517             val = -1;
 518         }
 519
 520         Collections.sort(mFiles, new Comparator<OCFile>() {
 521             public int compare(OCFile o1, OCFile o2) {
 522                 if (o1.isFolder() && o2.isFolder()) {
 523                     return val * o1.getRemotePath().toLowerCase().compareTo(o2.getRemotePath().toLowerCase());
 524                 } else if (o1.isFolder()) {
 525                     return -1;
 526                 } else if (o2.isFolder()) {
 527                     return 1;
 528                 }
 529                 return val * new AlphanumComparator().compare(o1, o2);
 530             }
 531         });
 532     }
 533
 534     public void setSortOrder(Integer order, boolean ascending) {
 535         SharedPreferences.Editor editor = mAppPreferences.edit();
 536         editor.putInt("sortOrder", order);
 537         editor.putBoolean("sortAscending", ascending);
 538         editor.commit();
 539
 540         FileStorageUtils.mSortOrder = order;
 541         FileStorageUtils.mSortAscending = ascending;
 542
 543
 544         mFiles = FileStorageUtils.sortFolder(mFiles);
 545         notifyDataSetChanged();
 546
 547     }
 548
 549     private CharSequence showRelativeTimestamp(OCFile file){
 550         return DisplayUtils.getRelativeDateTimeString(mContext, file.getModificationTimestamp(),
 551                 DateUtils.SECOND_IN_MILLIS, DateUtils.WEEK_IN_MILLIS, 0);
 552     }
 553 }