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.text.format.DateUtils;
  33 import android.view.LayoutInflater;
  34 import android.view.View;
  35 import android.view.ViewGroup;
  36 import android.widget.BaseAdapter;
  37 import android.widget.ImageView;
  38 import android.widget.ListAdapter;
  39 import android.widget.ListView;
  40 import android.widget.TextView;
  41
  42 import com.owncloud.android.R;
  43 import com.owncloud.android.authentication.AccountUtils;
  44 import com.owncloud.android.datamodel.FileDataStorageManager;
  45 import com.owncloud.android.datamodel.OCFile;
  46 import com.owncloud.android.datamodel.ThumbnailsCacheManager;
  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
  90         mTransferServiceGetter = transferServiceGetter;
  91
  92         mAppPreferences = PreferenceManager
  93                 .getDefaultSharedPreferences(mContext);
  94
  95         // Read sorting order, default to sort by name ascending
  96         mSortOrder = mAppPreferences
  97                 .getInt("sortOrder", 0);
  98         mSortAscending = mAppPreferences.getBoolean("sortAscending", true);
  99
 100         // initialise thumbnails cache on background thread
 101         new ThumbnailsCacheManager.InitDiskCacheTask().execute();
 102
 103     }
 104
 105     @Override
 106     public boolean areAllItemsEnabled() {
 107         return true;
 108     }
 109
 110     @Override
 111     public boolean isEnabled(int position) {
 112         return true;
 113     }
 114
 115     @Override
 116     public int getCount() {
 117         return mFiles != null ? mFiles.size() : 0;
 118     }
 119
 120     @Override
 121     public Object getItem(int position) {
 122         if (mFiles == null || mFiles.size() <= position)
 123             return null;
 124         return mFiles.get(position);
 125     }
 126
 127     @Override
 128     public long getItemId(int position) {
 129         if (mFiles == null || mFiles.size() <= position)
 130             return 0;
 131         return mFiles.get(position).getFileId();
 132     }
 133
 134     @Override
 135     public int getItemViewType(int position) {
 136         return 0;
 137     }
 138
 139     @Override
 140     public View getView(int position, View convertView, ViewGroup parent) {
 141         View view = convertView;
 142         if (view == null) {
 143             LayoutInflater inflator = (LayoutInflater) mContext
 144                     .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
 145             view = inflator.inflate(R.layout.list_item, null);
 146         }
 147
 148         if (mFiles != null && mFiles.size() > position) {
 149             OCFile file = mFiles.get(position);
 150             TextView fileName = (TextView) view.findViewById(R.id.Filename);
 151             String name = file.getFileName();
 152
 153             fileName.setText(name);
 154             ImageView fileIcon = (ImageView) view.findViewById(R.id.imageView1);
 155             fileIcon.setTag(file.getFileId());
 156             ImageView sharedIconV = (ImageView) view.findViewById(R.id.sharedIcon);
 157             ImageView sharedWithMeIconV = (ImageView) view.findViewById(R.id.sharedWithMeIcon);
 158             sharedWithMeIconV.setVisibility(View.GONE);
 159
 160             ImageView localStateView = (ImageView) view.findViewById(R.id.imageView2);
 161             localStateView.bringToFront();
 162             FileDownloaderBinder downloaderBinder =
 163                     mTransferServiceGetter.getFileDownloaderBinder();
 164             FileUploaderBinder uploaderBinder = mTransferServiceGetter.getFileUploaderBinder();
 165             if (downloaderBinder != null && downloaderBinder.isDownloading(mAccount, file)) {
 166                 localStateView.setImageResource(R.drawable.downloading_file_indicator);
 167                 localStateView.setVisibility(View.VISIBLE);
 168             } else if (uploaderBinder != null && uploaderBinder.isUploading(mAccount, file)) {
 169                 localStateView.setImageResource(R.drawable.uploading_file_indicator);
 170                 localStateView.setVisibility(View.VISIBLE);
 171             } else if (file.isDown()) {
 172                 localStateView.setImageResource(R.drawable.local_file_indicator);
 173                 localStateView.setVisibility(View.VISIBLE);
 174             } else {
 175                 localStateView.setVisibility(View.INVISIBLE);
 176             }
 177
 178             TextView fileSizeV = (TextView) view.findViewById(R.id.file_size);
 179             TextView lastModV = (TextView) view.findViewById(R.id.last_mod);
 180             ImageView checkBoxV = (ImageView) view.findViewById(R.id.custom_checkbox);
 181
 182             if (!file.isFolder()) {
 183                 fileSizeV.setVisibility(View.VISIBLE);
 184                 fileSizeV.setText(DisplayUtils.bytesToHumanReadable(file.getFileLength()));
 185                 lastModV.setVisibility(View.VISIBLE);
 186                 lastModV.setText(showRelativeTimestamp(file));
 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
 217                         // generate new Thumbnail
 218                         if (ThumbnailsCacheManager.cancelPotentialWork(file, fileIcon)) {
 219                             final ThumbnailsCacheManager.ThumbnailGenerationTask task =
 220                                     new ThumbnailsCacheManager.ThumbnailGenerationTask(
 221                                             fileIcon, mStorageManager, mAccount
 222                                     );
 223                             if (thumbnail == null) {
 224                                 thumbnail = ThumbnailsCacheManager.mDefaultImg;
 225                             }
 226                             final ThumbnailsCacheManager.AsyncDrawable asyncDrawable = new ThumbnailsCacheManager.AsyncDrawable(
 227                                     mContext.getResources(),
 228                                     thumbnail,
 229                                     task
 230                             );
 231                             fileIcon.setImageDrawable(asyncDrawable);
 232                             task.execute(file);
 233                         }
 234                     }
 235                 } else {
 236                     fileIcon.setImageResource(DisplayUtils.getFileTypeIconId(file.getMimetype(), file.getFileName()));
 237                 }
 238
 239                 if (checkIfFileIsSharedWithMe(file)) {
 240                     sharedWithMeIconV.setVisibility(View.VISIBLE);
 241                 }
 242             }
 243             else {
 244                   // TODO Re-enable when server supports folder-size calculation
 245 //                if (FileStorageUtils.getDefaultSavePathFor(mAccount.name, file) != null){
 246 //                    fileSizeV.setVisibility(View.VISIBLE);
 247 //                    fileSizeV.setText(getFolderSizeHuman(FileStorageUtils.getDefaultSavePathFor(mAccount.name, file)));
 248 //                } else {
 249                     fileSizeV.setVisibility(View.INVISIBLE);
 250 //                }
 251
 252                 lastModV.setVisibility(View.VISIBLE);
 253                 lastModV.setText(showRelativeTimestamp(file));
 254                 checkBoxV.setVisibility(View.GONE);
 255                 view.findViewById(R.id.imageView3).setVisibility(View.GONE);
 256
 257                 if (checkIfFileIsSharedWithMe(file)) {
 258                     fileIcon.setImageResource(R.drawable.shared_with_me_folder);
 259                     sharedWithMeIconV.setVisibility(View.VISIBLE);
 260                 } else {
 261                     fileIcon.setImageResource(
 262                             DisplayUtils.getFileTypeIconId(file.getMimetype(), file.getFileName())
 263                     );
 264                 }
 265
 266                 // If folder is sharedByLink, icon folder must be changed to
 267                 // folder-public one
 268                 if (file.isShareByLink()) {
 269                     fileIcon.setImageResource(R.drawable.folder_public);
 270                 }
 271             }
 272
 273             if (file.isShareByLink()) {
 274                 sharedIconV.setVisibility(View.VISIBLE);
 275             } else {
 276                 sharedIconV.setVisibility(View.GONE);
 277             }
 278         }
 279
 280         return view;
 281     }
 282
 283     /**
 284      * Local Folder size in human readable format
 285      *
 286      * @param path
 287      *            String
 288      * @return Size in human readable format
 289      */
 290     private String getFolderSizeHuman(String path) {
 291
 292         File dir = new File(path);
 293
 294         if (dir.exists()) {
 295             long bytes = getFolderSize(dir);
 296             return DisplayUtils.bytesToHumanReadable(bytes);
 297         }
 298
 299         return "0 B";
 300     }
 301
 302     /**
 303      * Local Folder size
 304      * @param dir File
 305      * @return Size in bytes
 306      */
 307     private long getFolderSize(File dir) {
 308         if (dir.exists()) {
 309             long result = 0;
 310             File[] fileList = dir.listFiles();
 311             for(int i = 0; i < fileList.length; i++) {
 312                 if(fileList[i].isDirectory()) {
 313                     result += getFolderSize(fileList[i]);
 314                 } else {
 315                     result += fileList[i].length();
 316                 }
 317             }
 318             return result;
 319         }
 320         return 0;
 321     }
 322
 323     @Override
 324     public int getViewTypeCount() {
 325         return 1;
 326     }
 327
 328     @Override
 329     public boolean hasStableIds() {
 330         return true;
 331     }
 332
 333     @Override
 334     public boolean isEmpty() {
 335         return (mFiles == null || mFiles.isEmpty());
 336     }
 337
 338     /**
 339      * Change the adapted directory for a new one
 340      * @param directory                 New file to adapt. Can be NULL, meaning
 341      *                                  "no content to adapt".
 342      * @param updatedStorageManager     Optional updated storage manager; used to replace
 343      *                                  mStorageManager if is different (and not NULL)
 344      */
 345     public void swapDirectory(OCFile directory, FileDataStorageManager updatedStorageManager) {
 346         mFile = directory;
 347         if (updatedStorageManager != null && updatedStorageManager != mStorageManager) {
 348             mStorageManager = updatedStorageManager;
 349             mAccount = AccountUtils.getCurrentOwnCloudAccount(mContext);
 350         }
 351         if (mStorageManager != null) {
 352             mFiles = mStorageManager.getFolderContent(mFile);
 353             if (mJustFolders) {
 354                 mFiles = getFolders(mFiles);
 355             }
 356         } else {
 357             mFiles = null;
 358         }
 359
 360         sortDirectory();
 361     }
 362
 363     /**
 364      * Sorts all filenames, regarding last user decision
 365      */
 366     private void sortDirectory(){
 367         switch (mSortOrder){
 368         case 0:
 369             sortByName(mSortAscending);
 370             break;
 371         case 1:
 372             sortByDate(mSortAscending);
 373             break;
 374         case 2:
 375             sortBySize(mSortAscending);
 376             break;
 377         }
 378
 379         notifyDataSetChanged();
 380     }
 381
 382
 383     /**
 384      * Filter for getting only the folders
 385      * @param files
 386      * @return Vector<OCFile>
 387      */
 388     public Vector<OCFile> getFolders(Vector<OCFile> files) {
 389         Vector<OCFile> ret = new Vector<OCFile>();
 390         OCFile current = null;
 391         for (int i=0; i<files.size(); i++) {
 392             current = files.get(i);
 393             if (current.isFolder()) {
 394                 ret.add(current);
 395             }
 396         }
 397         return ret;
 398     }
 399
 400
 401     /**
 402      * Check if parent folder does not include 'S' permission and if file/folder
 403      * is shared with me
 404      *
 405      * @param file: OCFile
 406      * @return boolean: True if it is shared with me and false if it is not
 407      */
 408     private boolean checkIfFileIsSharedWithMe(OCFile file) {
 409         return (mFile.getPermissions() != null
 410                 && !mFile.getPermissions().contains(PERMISSION_SHARED_WITH_ME)
 411                 && file.getPermissions() != null
 412                 && file.getPermissions().contains(PERMISSION_SHARED_WITH_ME));
 413     }
 414
 415     /**
 416      * Sorts list by Date
 417      * @param sortAscending true: ascending, false: descending
 418      */
 419     private void sortByDate(boolean sortAscending){
 420         final Integer val;
 421         if (sortAscending){
 422             val = 1;
 423         } else {
 424             val = -1;
 425         }
 426
 427         Collections.sort(mFiles, new Comparator<OCFile>() {
 428             public int compare(OCFile o1, OCFile o2) {
 429                 if (o1.isFolder() && o2.isFolder()) {
 430                     Long obj1 = o1.getModificationTimestamp();
 431                     return val * obj1.compareTo(o2.getModificationTimestamp());
 432                 }
 433                 else if (o1.isFolder()) {
 434                     return -1;
 435                 } else if (o2.isFolder()) {
 436                     return 1;
 437                 } else if (o1.getModificationTimestamp() == 0 || o2.getModificationTimestamp() == 0){
 438                     return 0;
 439                 } else {
 440                     Long obj1 = o1.getModificationTimestamp();
 441                     return val * obj1.compareTo(o2.getModificationTimestamp());
 442                 }
 443             }
 444         });
 445     }
 446
 447     /**
 448      * Sorts list by Size
 449      * @param sortAscending true: ascending, false: descending
 450      */
 451     private void sortBySize(boolean sortAscending){
 452         final Integer val;
 453         if (sortAscending){
 454             val = 1;
 455         } else {
 456             val = -1;
 457         }
 458
 459         Collections.sort(mFiles, new Comparator<OCFile>() {
 460             public int compare(OCFile o1, OCFile o2) {
 461                 if (o1.isFolder() && o2.isFolder()) {
 462                     Long obj1 = getFolderSize(new File(FileStorageUtils.getDefaultSavePathFor(mAccount.name, o1)));
 463                     return val * obj1.compareTo(getFolderSize(new File(FileStorageUtils.getDefaultSavePathFor(mAccount.name, o2))));
 464                 }
 465                 else if (o1.isFolder()) {
 466                     return -1;
 467                 } else if (o2.isFolder()) {
 468                     return 1;
 469                 } else if (o1.getFileLength() == 0 || o2.getFileLength() == 0){
 470                     return 0;
 471                 } else {
 472                     Long obj1 = o1.getFileLength();
 473                     return val * obj1.compareTo(o2.getFileLength());
 474                 }
 475             }
 476         });
 477     }
 478
 479     /**
 480      * Sorts list by Name
 481      * @param sortAscending true: ascending, false: descending
 482      */
 483     private void sortByName(boolean sortAscending){
 484         final Integer val;
 485         if (sortAscending){
 486             val = 1;
 487         } else {
 488             val = -1;
 489         }
 490
 491         Collections.sort(mFiles, new Comparator<OCFile>() {
 492             public int compare(OCFile o1, OCFile o2) {
 493                 if (o1.isFolder() && o2.isFolder()) {
 494                     return val * o1.getRemotePath().toLowerCase().compareTo(o2.getRemotePath().toLowerCase());
 495                 } else if (o1.isFolder()) {
 496                     return -1;
 497                 } else if (o2.isFolder()) {
 498                     return 1;
 499                 }
 500                 return val * new AlphanumComparator().compare(o1, o2);
 501             }
 502         });
 503     }
 504
 505     public void setSortOrder(Integer order, boolean ascending) {
 506         SharedPreferences.Editor editor = mAppPreferences.edit();
 507         editor.putInt("sortOrder", order);
 508         editor.putBoolean("sortAscending", ascending);
 509         editor.commit();
 510
 511         mSortOrder = order;
 512         mSortAscending = ascending;
 513
 514         sortDirectory();
 515     }
 516
 517     private CharSequence showRelativeTimestamp(OCFile file){
 518         return DisplayUtils.getRelativeDateTimeString(mContext, file.getModificationTimestamp(),
 519                 DateUtils.SECOND_IN_MILLIS, DateUtils.WEEK_IN_MILLIS, 0);
 520     }
 521 }