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 {
 253                     localStateView.setVisibility(View.INVISIBLE);
 254                 }
 255                 break;
 256             case GRID_ITEM:
 257                 fileName = (TextView) view.findViewById(R.id.Filename);
 258                 name = file.getFileName();
 259                 fileName.setText(name);
 260                 break;
 261             case GRID_IMAGE:
 262                 break;
 263             }
 264
 265             // For all Views
 266
 267             // this if-else is needed even though favorite icon is visible by default
 268             // because android reuses views in listview
 269             if (!file.keepInSync()) {
 270                 view.findViewById(R.id.favoriteIcon).setVisibility(View.GONE);
 271             } else {
 272                 view.findViewById(R.id.favoriteIcon).setVisibility(View.VISIBLE);
 273             }
 274
 275             // No Folder
 276             if (!file.isFolder()) {
 277                 if (file.isImage() && file.getRemoteId() != null){
 278                     // Thumbnail in Cache?
 279                     Bitmap thumbnail = ThumbnailsCacheManager.getBitmapFromDiskCache(
 280                             String.valueOf(file.getRemoteId())
 281                             );
 282                     if (thumbnail != null && !file.needsUpdateThumbnail()){
 283                         fileIcon.setImageBitmap(thumbnail);
 284                     } else {
 285                         // generate new Thumbnail
 286                         if (ThumbnailsCacheManager.cancelPotentialWork(file, fileIcon)) {
 287                             final ThumbnailsCacheManager.ThumbnailGenerationTask task =
 288                                     new ThumbnailsCacheManager.ThumbnailGenerationTask(
 289                                             fileIcon, mStorageManager, mAccount
 290                                             );
 291                             if (thumbnail == null) {
 292                                 thumbnail = ThumbnailsCacheManager.mDefaultImg;
 293                             }
 294                             final ThumbnailsCacheManager.AsyncDrawable asyncDrawable =
 295                                     new ThumbnailsCacheManager.AsyncDrawable(
 296                                     mContext.getResources(),
 297                                     thumbnail,
 298                                     task
 299                                     );
 300                             fileIcon.setImageDrawable(asyncDrawable);
 301                             task.execute(file);
 302                         }
 303                     }
 304                 } else {
 305                     fileIcon.setImageResource(DisplayUtils.getFileTypeIconId(file.getMimetype(), file.getFileName()));
 306                 }
 307             } else {
 308                 // Folder
 309                 if (checkIfFileIsSharedWithMe(file)) {
 310                     fileIcon.setImageResource(R.drawable.shared_with_me_folder);
 311                 } else if (file.isShareByLink()) {
 312                     // If folder is sharedByLink, icon folder must be changed to
 313                     // folder-public one
 314                     fileIcon.setImageResource(R.drawable.folder_public);
 315                 } else {
 316                     fileIcon.setImageResource(
 317                             DisplayUtils.getFileTypeIconId(file.getMimetype(), file.getFileName())
 318                     );
 319                 }
 320             }
 321         }
 322
 323         return view;
 324     }
 325
 326     /**
 327      * Local Folder size in human readable format
 328      *
 329      * @param path
 330      *            String
 331      * @return Size in human readable format
 332      */
 333     private String getFolderSizeHuman(String path) {
 334
 335         File dir = new File(path);
 336
 337         if (dir.exists()) {
 338             long bytes = FileStorageUtils.getFolderSize(dir);
 339             return DisplayUtils.bytesToHumanReadable(bytes);
 340         }
 341
 342         return "0 B";
 343     }
 344
 345     /**
 346      * Local Folder size
 347      * @param dir File
 348      * @return Size in bytes
 349      */
 350     private long getFolderSize(File dir) {
 351         if (dir.exists()) {
 352             long result = 0;
 353             File[] fileList = dir.listFiles();
 354             for(int i = 0; i < fileList.length; i++) {
 355                 if(fileList[i].isDirectory()) {
 356                     result += getFolderSize(fileList[i]);
 357                 } else {
 358                     result += fileList[i].length();
 359                 }
 360             }
 361             return result;
 362         }
 363         return 0;
 364     }
 365
 366     @Override
 367     public int getViewTypeCount() {
 368         return 1;
 369     }
 370
 371     @Override
 372     public boolean hasStableIds() {
 373         return true;
 374     }
 375
 376     @Override
 377     public boolean isEmpty() {
 378         return (mFiles == null || mFiles.isEmpty());
 379     }
 380
 381     /**
 382      * Change the adapted directory for a new one
 383      * @param directory                 New file to adapt. Can be NULL, meaning
 384      *                                  "no content to adapt".
 385      * @param updatedStorageManager     Optional updated storage manager; used to replace
 386      *                                  mStorageManager if is different (and not NULL)
 387      */
 388     public void swapDirectory(OCFile directory, FileDataStorageManager updatedStorageManager) {
 389         mFile = directory;
 390         if (updatedStorageManager != null && updatedStorageManager != mStorageManager) {
 391             mStorageManager = updatedStorageManager;
 392             mAccount = AccountUtils.getCurrentOwnCloudAccount(mContext);
 393         }
 394         if (mStorageManager != null) {
 395             mFiles = mStorageManager.getFolderContent(mFile);
 396             mFilesOrig.clear();
 397             mFilesOrig.addAll(mFiles);
 398
 399             if (mJustFolders) {
 400                 mFiles = getFolders(mFiles);
 401             }
 402         } else {
 403             mFiles = null;
 404         }
 405
 406         mFiles = FileStorageUtils.sortFolder(mFiles);
 407         notifyDataSetChanged();
 408     }
 409
 410
 411     /**
 412      * Filter for getting only the folders
 413      * @param files
 414      * @return Vector<OCFile>
 415      */
 416     public Vector<OCFile> getFolders(Vector<OCFile> files) {
 417         Vector<OCFile> ret = new Vector<OCFile>();
 418         OCFile current = null;
 419         for (int i=0; i<files.size(); i++) {
 420             current = files.get(i);
 421             if (current.isFolder()) {
 422                 ret.add(current);
 423             }
 424         }
 425         return ret;
 426     }
 427
 428
 429     /**
 430      * Check if parent folder does not include 'S' permission and if file/folder
 431      * is shared with me
 432      *
 433      * @param file: OCFile
 434      * @return boolean: True if it is shared with me and false if it is not
 435      */
 436     private boolean checkIfFileIsSharedWithMe(OCFile file) {
 437         return (mFile.getPermissions() != null
 438                 && !mFile.getPermissions().contains(PERMISSION_SHARED_WITH_ME)
 439                 && file.getPermissions() != null
 440                 && file.getPermissions().contains(PERMISSION_SHARED_WITH_ME));
 441     }
 442
 443     /**
 444      * Sorts list by Date
 445      * @param sortAscending true: ascending, false: descending
 446      */
 447     private void sortByDate(boolean sortAscending){
 448         final Integer val;
 449         if (sortAscending){
 450             val = 1;
 451         } else {
 452             val = -1;
 453         }
 454
 455         Collections.sort(mFiles, new Comparator<OCFile>() {
 456             public int compare(OCFile o1, OCFile o2) {
 457                 if (o1.isFolder() && o2.isFolder()) {
 458                     Long obj1 = o1.getModificationTimestamp();
 459                     return val * obj1.compareTo(o2.getModificationTimestamp());
 460                 }
 461                 else if (o1.isFolder()) {
 462                     return -1;
 463                 } else if (o2.isFolder()) {
 464                     return 1;
 465                 } else if (o1.getModificationTimestamp() == 0 || o2.getModificationTimestamp() == 0){
 466                     return 0;
 467                 } else {
 468                     Long obj1 = o1.getModificationTimestamp();
 469                     return val * obj1.compareTo(o2.getModificationTimestamp());
 470                 }
 471             }
 472         });
 473     }
 474
 475     /**
 476      * Sorts list by Size
 477      * @param sortAscending true: ascending, false: descending
 478      */
 479     private void sortBySize(boolean sortAscending){
 480         final Integer val;
 481         if (sortAscending){
 482             val = 1;
 483         } else {
 484             val = -1;
 485         }
 486
 487         Collections.sort(mFiles, new Comparator<OCFile>() {
 488             public int compare(OCFile o1, OCFile o2) {
 489                 if (o1.isFolder() && o2.isFolder()) {
 490                     Long obj1 = getFolderSize(new File(FileStorageUtils.getDefaultSavePathFor(mAccount.name, o1)));
 491                     return val * obj1.compareTo(getFolderSize(new File(FileStorageUtils.getDefaultSavePathFor(mAccount.name, o2))));
 492                 }
 493                 else if (o1.isFolder()) {
 494                     return -1;
 495                 } else if (o2.isFolder()) {
 496                     return 1;
 497                 } else if (o1.getFileLength() == 0 || o2.getFileLength() == 0){
 498                     return 0;
 499                 } else {
 500                     Long obj1 = o1.getFileLength();
 501                     return val * obj1.compareTo(o2.getFileLength());
 502                 }
 503             }
 504         });
 505     }
 506
 507     /**
 508      * Sorts list by Name
 509      * @param sortAscending true: ascending, false: descending
 510      */
 511     private void sortByName(boolean sortAscending){
 512         final Integer val;
 513         if (sortAscending){
 514             val = 1;
 515         } else {
 516             val = -1;
 517         }
 518
 519         Collections.sort(mFiles, new Comparator<OCFile>() {
 520             public int compare(OCFile o1, OCFile o2) {
 521                 if (o1.isFolder() && o2.isFolder()) {
 522                     return val * o1.getRemotePath().toLowerCase().compareTo(o2.getRemotePath().toLowerCase());
 523                 } else if (o1.isFolder()) {
 524                     return -1;
 525                 } else if (o2.isFolder()) {
 526                     return 1;
 527                 }
 528                 return val * new AlphanumComparator().compare(o1, o2);
 529             }
 530         });
 531     }
 532
 533     public void setSortOrder(Integer order, boolean ascending) {
 534         SharedPreferences.Editor editor = mAppPreferences.edit();
 535         editor.putInt("sortOrder", order);
 536         editor.putBoolean("sortAscending", ascending);
 537         editor.commit();
 538
 539         FileStorageUtils.mSortOrder = order;
 540         FileStorageUtils.mSortAscending = ascending;
 541
 542
 543         mFiles = FileStorageUtils.sortFolder(mFiles);
 544         notifyDataSetChanged();
 545
 546     }
 547
 548     private CharSequence showRelativeTimestamp(OCFile file){
 549         return DisplayUtils.getRelativeDateTimeString(mContext, file.getModificationTimestamp(),
 550                 DateUtils.SECOND_IN_MILLIS, DateUtils.WEEK_IN_MILLIS, 0);
 551     }
 552 }