src/com/owncloud/android/ui/adapter/FileListListAdapter.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2011  Bartek Przybylski
   3  *   Copyright (C) 2012-2014 ownCloud Inc.
   4  *
   5  *   This program is free software: you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License version 2,
   7  *   as published by the Free Software Foundation.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18 package com.owncloud.android.ui.adapter;
  19
  20
  21 import java.io.File;
  22 import java.util.Collections;
  23 import java.util.Comparator;
  24 import java.util.Vector;
  25
  26 import third_parties.daveKoeller.AlphanumComparator;
  27 import android.accounts.Account;
  28 import android.content.Context;
  29 import android.content.SharedPreferences;
  30 import android.graphics.Bitmap;
  31 import android.preference.PreferenceManager;
  32 import android.view.LayoutInflater;
  33 import android.view.View;
  34 import android.view.ViewGroup;
  35 import android.widget.BaseAdapter;
  36 import android.widget.ImageView;
  37 import android.widget.ListAdapter;
  38 import android.widget.ListView;
  39 import android.widget.TextView;
  40
  41 import com.owncloud.android.R;
  42 import com.owncloud.android.authentication.AccountUtils;
  43 import com.owncloud.android.datamodel.FileDataStorageManager;
  44 import com.owncloud.android.datamodel.OCFile;
  45 import com.owncloud.android.datamodel.ThumbnailsCacheManager;
  46 import com.owncloud.android.datamodel.ThumbnailsCacheManager.AsyncDrawable;
  47 import com.owncloud.android.files.services.FileDownloader.FileDownloaderBinder;
  48 import com.owncloud.android.files.services.FileUploader.FileUploaderBinder;
  49 import com.owncloud.android.ui.activity.ComponentsGetter;
  50 import com.owncloud.android.utils.DisplayUtils;
  51 import com.owncloud.android.utils.FileStorageUtils;
  52
  53
  54 /**
  55  * This Adapter populates a ListView with all files and folders in an ownCloud
  56  * instance.
  57  *
  58  * @author Bartek Przybylski
  59  * @author Tobias Kaminsky
  60  * @author David A. Velasco
  61  */
  62 public class FileListListAdapter extends BaseAdapter implements ListAdapter {
  63     private final static String PERMISSION_SHARED_WITH_ME = "S";
  64
  65     private Context mContext;
  66     private OCFile mFile = null;
  67     private Vector<OCFile> mFiles = null;
  68     private boolean mJustFolders;
  69
  70     private FileDataStorageManager mStorageManager;
  71     private Account mAccount;
  72     private ComponentsGetter mTransferServiceGetter;
  73     private Integer mSortOrder;
  74     public static final Integer SORT_NAME = 0;
  75     public static final Integer SORT_DATE = 1;
  76     public static final Integer SORT_SIZE = 2;
  77     private Boolean mSortAscending;
  78     private SharedPreferences mAppPreferences;
  79
  80     public FileListListAdapter(
  81             boolean justFolders,
  82             Context context,
  83             ComponentsGetter transferServiceGetter
  84             ) {
  85
  86         mJustFolders = justFolders;
  87         mContext = context;
  88         mAccount = AccountUtils.getCurrentOwnCloudAccount(mContext);
  89         mTransferServiceGetter = transferServiceGetter;
  90
  91         mAppPreferences = PreferenceManager
  92                 .getDefaultSharedPreferences(mContext);
  93
  94         // Read sorting order, default to sort by name ascending
  95         mSortOrder = mAppPreferences
  96                 .getInt("sortOrder", 0);
  97         mSortAscending = mAppPreferences.getBoolean("sortAscending", true);
  98
  99         // initialise thumbnails cache on background thread
 100         new ThumbnailsCacheManager.InitDiskCacheTask().execute();
 101     }
 102
 103     @Override
 104     public boolean areAllItemsEnabled() {
 105         return true;
 106     }
 107
 108     @Override
 109     public boolean isEnabled(int position) {
 110         return true;
 111     }
 112
 113     @Override
 114     public int getCount() {
 115         return mFiles != null ? mFiles.size() : 0;
 116     }
 117
 118     @Override
 119     public Object getItem(int position) {
 120         if (mFiles == null || mFiles.size() <= position)
 121             return null;
 122         return mFiles.get(position);
 123     }
 124
 125     @Override
 126     public long getItemId(int position) {
 127         if (mFiles == null || mFiles.size() <= position)
 128             return 0;
 129         return mFiles.get(position).getFileId();
 130     }
 131
 132     @Override
 133     public int getItemViewType(int position) {
 134         return 0;
 135     }
 136
 137     @Override
 138     public View getView(int position, View convertView, ViewGroup parent) {
 139         View view = convertView;
 140         if (view == null) {
 141             LayoutInflater inflator = (LayoutInflater) mContext
 142                     .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
 143             view = inflator.inflate(R.layout.list_item, null);
 144         }
 145
 146         if (mFiles != null && mFiles.size() > position) {
 147             OCFile file = mFiles.get(position);
 148             TextView fileName = (TextView) view.findViewById(R.id.Filename);
 149             String name = file.getFileName();
 150
 151             fileName.setText(name);
 152             ImageView fileIcon = (ImageView) view.findViewById(R.id.imageView1);
 153             fileIcon.setTag(file.getFileId());
 154             ImageView sharedIconV = (ImageView) view.findViewById(R.id.sharedIcon);
 155             ImageView sharedWithMeIconV = (ImageView) view.findViewById(R.id.sharedWithMeIcon);
 156             sharedWithMeIconV.setVisibility(View.GONE);
 157
 158             ImageView localStateView = (ImageView) view.findViewById(R.id.imageView2);
 159             localStateView.bringToFront();
 160             FileDownloaderBinder downloaderBinder =
 161                     mTransferServiceGetter.getFileDownloaderBinder();
 162             FileUploaderBinder uploaderBinder = mTransferServiceGetter.getFileUploaderBinder();
 163             if (downloaderBinder != null && downloaderBinder.isDownloading(mAccount, file)) {
 164                 localStateView.setImageResource(R.drawable.downloading_file_indicator);
 165                 localStateView.setVisibility(View.VISIBLE);
 166             } else if (uploaderBinder != null && uploaderBinder.isUploading(mAccount, file)) {
 167                 localStateView.setImageResource(R.drawable.uploading_file_indicator);
 168                 localStateView.setVisibility(View.VISIBLE);
 169             } else if (file.isDown()) {
 170                 localStateView.setImageResource(R.drawable.local_file_indicator);
 171                 localStateView.setVisibility(View.VISIBLE);
 172             } else {
 173                 localStateView.setVisibility(View.INVISIBLE);
 174             }
 175
 176             TextView fileSizeV = (TextView) view.findViewById(R.id.file_size);
 177             TextView lastModV = (TextView) view.findViewById(R.id.last_mod);
 178             ImageView checkBoxV = (ImageView) view.findViewById(R.id.custom_checkbox);
 179
 180             if (!file.isFolder()) {
 181                 fileSizeV.setVisibility(View.VISIBLE);
 182                 fileSizeV.setText(DisplayUtils.bytesToHumanReadable(file.getFileLength()));
 183                 lastModV.setVisibility(View.VISIBLE);
 184                 lastModV.setText(
 185                         DisplayUtils.unixTimeToHumanReadable(file.getModificationTimestamp())
 186                 );
 187                 // this if-else is needed even thoe fav icon is visible by default
 188                 // because android reuses views in listview
 189                 if (!file.keepInSync()) {
 190                     view.findViewById(R.id.imageView3).setVisibility(View.GONE);
 191                 } else {
 192                     view.findViewById(R.id.imageView3).setVisibility(View.VISIBLE);
 193                 }
 194
 195                 ListView parentList = (ListView)parent;
 196                 if (parentList.getChoiceMode() == ListView.CHOICE_MODE_NONE) {
 197                     checkBoxV.setVisibility(View.GONE);
 198                 } else {
 199                     if (parentList.isItemChecked(position)) {
 200                         checkBoxV.setImageResource(android.R.drawable.checkbox_on_background);
 201                     } else {
 202                         checkBoxV.setImageResource(android.R.drawable.checkbox_off_background);
 203                     }
 204                     checkBoxV.setVisibility(View.VISIBLE);
 205                 }
 206
 207                 // get Thumbnail if file is image
 208                 if (file.isImage() && file.getRemoteId() != null){
 209                      // Thumbnail in Cache?
 210                     Bitmap thumbnail = ThumbnailsCacheManager.getBitmapFromDiskCache(
 211                             String.valueOf(file.getRemoteId())
 212                     );
 213                     if (thumbnail != null && !file.needsUpdateThumbnail()){
 214                         fileIcon.setImageBitmap(thumbnail);
 215                     } else {
 216                         // generate new Thumbnail
 217                         if (ThumbnailsCacheManager.cancelPotentialWork(file, fileIcon)) {
 218                             final ThumbnailsCacheManager.ThumbnailGenerationTask task =
 219                                     new ThumbnailsCacheManager.ThumbnailGenerationTask(
 220                                             fileIcon, mStorageManager
 221                                     );
 222                             if (thumbnail == null) {
 223                                 thumbnail = ThumbnailsCacheManager.mDefaultImg;
 224                             }
 225                             final AsyncDrawable asyncDrawable = new AsyncDrawable(
 226                                     mContext.getResources(),
 227                                     thumbnail,
 228                                     task
 229                             );
 230                             fileIcon.setImageDrawable(asyncDrawable);
 231                             task.execute(file);
 232                         }
 233                     }
 234                 } else {
 235                     fileIcon.setImageResource(
 236                             DisplayUtils.getResourceId(file.getMimetype(), file.getFileName())
 237                     );
 238                 }
 239
 240                 if (checkIfFileIsSharedWithMe(file)) {
 241                     sharedWithMeIconV.setVisibility(View.VISIBLE);
 242                 }
 243             }
 244             else {
 245                   // TODO Re-enable when server supports folder-size calculation
 246 //                if (FileStorageUtils.getDefaultSavePathFor(mAccount.name, file) != null){
 247 //                    fileSizeV.setVisibility(View.VISIBLE);
 248 //                    fileSizeV.setText(getFolderSizeHuman(FileStorageUtils.getDefaultSavePathFor(mAccount.name, file)));
 249 //                } else {
 250                     fileSizeV.setVisibility(View.INVISIBLE);
 251 //                }
 252
 253                 lastModV.setVisibility(View.VISIBLE);
 254                 lastModV.setText(
 255                         DisplayUtils.unixTimeToHumanReadable(file.getModificationTimestamp())
 256                 );
 257                 checkBoxV.setVisibility(View.GONE);
 258                 view.findViewById(R.id.imageView3).setVisibility(View.GONE);
 259
 260                 if (checkIfFileIsSharedWithMe(file)) {
 261                     fileIcon.setImageResource(R.drawable.shared_with_me_folder);
 262                     sharedWithMeIconV.setVisibility(View.VISIBLE);
 263                 } else {
 264                     fileIcon.setImageResource(
 265                             DisplayUtils.getResourceId(file.getMimetype(), file.getFileName())
 266                     );
 267                 }
 268
 269                 // If folder is sharedByLink, icon folder must be changed to
 270                 // folder-public one
 271                 if (file.isShareByLink()) {
 272                     fileIcon.setImageResource(R.drawable.folder_public);
 273                 }
 274             }
 275
 276             if (file.isShareByLink()) {
 277                 sharedIconV.setVisibility(View.VISIBLE);
 278             } else {
 279                 sharedIconV.setVisibility(View.GONE);
 280             }
 281         }
 282
 283         return view;
 284     }
 285
 286     /**
 287      * Local Folder size in human readable format
 288      *
 289      * @param path
 290      *            String
 291      * @return Size in human readable format
 292      */
 293     private String getFolderSizeHuman(String path) {
 294
 295         File dir = new File(path);
 296
 297         if (dir.exists()) {
 298             long bytes = getFolderSize(dir);
 299             return DisplayUtils.bytesToHumanReadable(bytes);
 300         }
 301
 302         return "0 B";
 303     }
 304
 305     /**
 306      * Local Folder size
 307      * @param dir File
 308      * @return Size in bytes
 309      */
 310     private long getFolderSize(File dir) {
 311         if (dir.exists()) {
 312             long result = 0;
 313             File[] fileList = dir.listFiles();
 314             for(int i = 0; i < fileList.length; i++) {
 315                 if(fileList[i].isDirectory()) {
 316                     result += getFolderSize(fileList[i]);
 317                 } else {
 318                     result += fileList[i].length();
 319                 }
 320             }
 321             return result;
 322         }
 323         return 0;
 324     }
 325
 326     @Override
 327     public int getViewTypeCount() {
 328         return 1;
 329     }
 330
 331     @Override
 332     public boolean hasStableIds() {
 333         return true;
 334     }
 335
 336     @Override
 337     public boolean isEmpty() {
 338         return (mFiles == null || mFiles.isEmpty());
 339     }
 340
 341     /**
 342      * Change the adapted directory for a new one
 343      * @param directory                 New file to adapt. Can be NULL, meaning
 344      *                                  "no content to adapt".
 345      * @param updatedStorageManager     Optional updated storage manager; used to replace
 346      *                                  mStorageManager if is different (and not NULL)
 347      */
 348     public void swapDirectory(OCFile directory, FileDataStorageManager updatedStorageManager) {
 349         mFile = directory;
 350         if (updatedStorageManager != null && updatedStorageManager != mStorageManager) {
 351             mStorageManager = updatedStorageManager;
 352             mAccount = AccountUtils.getCurrentOwnCloudAccount(mContext);
 353         }
 354         if (mStorageManager != null) {
 355             mFiles = mStorageManager.getFolderContent(mFile);
 356             if (mJustFolders) {
 357                 mFiles = getFolders(mFiles);
 358             }
 359         } else {
 360             mFiles = null;
 361         }
 362
 363         sortDirectory();
 364     }
 365
 366     /**
 367      * Sorts all filenames, regarding last user decision
 368      */
 369     private void sortDirectory(){
 370         switch (mSortOrder){
 371         case 0:
 372             sortByName(mSortAscending);
 373             break;
 374         case 1:
 375             sortByDate(mSortAscending);
 376             break;
 377         case 2:
 378             sortBySize(mSortAscending);
 379             break;
 380         }
 381
 382         notifyDataSetChanged();
 383     }
 384
 385
 386     /**
 387      * Filter for getting only the folders
 388      * @param files
 389      * @return Vector<OCFile>
 390      */
 391     public Vector<OCFile> getFolders(Vector<OCFile> files) {
 392         Vector<OCFile> ret = new Vector<OCFile>();
 393         OCFile current = null;
 394         for (int i=0; i<files.size(); i++) {
 395             current = files.get(i);
 396             if (current.isFolder()) {
 397                 ret.add(current);
 398             }
 399         }
 400         return ret;
 401     }
 402
 403
 404     /**
 405      * Check if parent folder does not include 'S' permission and if file/folder
 406      * is shared with me
 407      *
 408      * @param file: OCFile
 409      * @return boolean: True if it is shared with me and false if it is not
 410      */
 411     private boolean checkIfFileIsSharedWithMe(OCFile file) {
 412         return (mFile.getPermissions() != null
 413                 && !mFile.getPermissions().contains(PERMISSION_SHARED_WITH_ME)
 414                 && file.getPermissions() != null
 415                 && file.getPermissions().contains(PERMISSION_SHARED_WITH_ME));
 416     }
 417
 418     /**
 419      * Sorts list by Date
 420      * @param sortAscending true: ascending, false: descending
 421      */
 422     private void sortByDate(boolean sortAscending){
 423         final Integer val;
 424         if (sortAscending){
 425             val = 1;
 426         } else {
 427             val = -1;
 428         }
 429
 430         Collections.sort(mFiles, new Comparator<OCFile>() {
 431             public int compare(OCFile o1, OCFile o2) {
 432                 if (o1.isFolder() && o2.isFolder()) {
 433                     Long obj1 = o1.getModificationTimestamp();
 434                     return val * obj1.compareTo(o2.getModificationTimestamp());
 435                 }
 436                 else if (o1.isFolder()) {
 437                     return -1;
 438                 } else if (o2.isFolder()) {
 439                     return 1;
 440                 } else if (o1.getModificationTimestamp() == 0 || o2.getModificationTimestamp() == 0){
 441                     return 0;
 442                 } else {
 443                     Long obj1 = o1.getModificationTimestamp();
 444                     return val * obj1.compareTo(o2.getModificationTimestamp());
 445                 }
 446             }
 447         });
 448     }
 449
 450     /**
 451      * Sorts list by Size
 452      * @param sortAscending true: ascending, false: descending
 453      */
 454     private void sortBySize(boolean sortAscending){
 455         final Integer val;
 456         if (sortAscending){
 457             val = 1;
 458         } else {
 459             val = -1;
 460         }
 461
 462         Collections.sort(mFiles, new Comparator<OCFile>() {
 463             public int compare(OCFile o1, OCFile o2) {
 464                 if (o1.isFolder() && o2.isFolder()) {
 465                     Long obj1 = getFolderSize(new File(FileStorageUtils.getDefaultSavePathFor(mAccount.name, o1)));
 466                     return val * obj1.compareTo(getFolderSize(new File(FileStorageUtils.getDefaultSavePathFor(mAccount.name, o2))));
 467                 }
 468                 else if (o1.isFolder()) {
 469                     return -1;
 470                 } else if (o2.isFolder()) {
 471                     return 1;
 472                 } else if (o1.getFileLength() == 0 || o2.getFileLength() == 0){
 473                     return 0;
 474                 } else {
 475                     Long obj1 = o1.getFileLength();
 476                     return val * obj1.compareTo(o2.getFileLength());
 477                 }
 478             }
 479         });
 480     }
 481
 482     /**
 483      * Sorts list by Name
 484      * @param sortAscending true: ascending, false: descending
 485      */
 486     private void sortByName(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                     return val * o1.getRemotePath().toLowerCase().compareTo(o2.getRemotePath().toLowerCase());
 498                 } else if (o1.isFolder()) {
 499                     return -1;
 500                 } else if (o2.isFolder()) {
 501                     return 1;
 502                 }
 503                 return val * new AlphanumComparator().compare(o1, o2);
 504             }
 505         });
 506     }
 507
 508     public void setSortOrder(Integer order, boolean ascending) {
 509         SharedPreferences.Editor editor = mAppPreferences.edit();
 510         editor.putInt("sortOrder", order);
 511         editor.putBoolean("sortAscending", ascending);
 512         editor.commit();
 513
 514         mSortOrder = order;
 515         mSortAscending = ascending;
 516
 517         sortDirectory();
 518     }
 519 }