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 import java.io.File;
  21 import java.io.IOException;
  22 import java.net.URLEncoder;
  23 import java.util.Vector;
  24
  25 import android.accounts.Account;
  26 import android.accounts.AuthenticatorException;
  27 import android.accounts.OperationCanceledException;
  28 import android.content.Context;
  29 import android.content.res.Resources;
  30 import android.graphics.Bitmap;
  31 import android.graphics.Bitmap.CompressFormat;
  32 import android.graphics.BitmapFactory;
  33 import android.media.ThumbnailUtils;
  34 import android.os.AsyncTask;
  35 import android.util.TypedValue;
  36 import android.view.LayoutInflater;
  37 import android.view.View;
  38 import android.view.ViewGroup;
  39 import android.widget.BaseAdapter;
  40 import android.widget.ImageView;
  41 import android.widget.ListAdapter;
  42 import android.widget.ListView;
  43 import android.widget.TextView;
  44
  45 import com.owncloud.android.R;
  46 import com.owncloud.android.authentication.AccountUtils;
  47 import com.owncloud.android.datamodel.FileDataStorageManager;
  48 import com.owncloud.android.datamodel.OCFile;
  49 import com.owncloud.android.files.services.FileDownloader.FileDownloaderBinder;
  50 import com.owncloud.android.files.services.FileUploader.FileUploaderBinder;
  51 import com.owncloud.android.lib.common.OwnCloudAccount;
  52 import com.owncloud.android.lib.common.OwnCloudClient;
  53 import com.owncloud.android.lib.common.OwnCloudClientManagerFactory;
  54 import com.owncloud.android.lib.common.accounts.AccountUtils.AccountNotFoundException;
  55 import com.owncloud.android.ui.activity.ComponentsGetter;
  56 import com.owncloud.android.utils.DisplayUtils;
  57
  58 import org.apache.http.HttpEntity;
  59 import org.apache.http.HttpResponse;
  60 import org.apache.http.auth.AuthScope;
  61 import org.apache.http.auth.UsernamePasswordCredentials;
  62 import org.apache.http.client.methods.HttpGet;
  63 import org.apache.http.impl.client.DefaultHttpClient;
  64 import org.apache.http.util.EntityUtils;
  65
  66
  67 /**
  68  * This Adapter populates a ListView with all files and folders in an ownCloud
  69  * instance.
  70  *
  71  * @author Bartek Przybylski
  72  *
  73  */
  74 public class FileListListAdapter extends BaseAdapter implements ListAdapter {
  75     private final static String PERMISSION_SHARED_WITH_ME = "S";
  76
  77     private Context mContext;
  78     private OCFile mFile = null;
  79     private Vector<OCFile> mFiles = null;
  80
  81     private FileDataStorageManager mStorageManager;
  82     private Account mAccount;
  83     private ComponentsGetter mTransferServiceGetter;
  84     private final Object mDiskCacheLock = new Object();
  85     private DiskLruImageCache mDiskLruCache;
  86     private boolean mDiskCacheStarting = true;
  87     private static final int DISK_CACHE_SIZE = 1024 * 1024 * 10; // 10MB
  88     private CompressFormat mCompressFormat = CompressFormat.JPEG;
  89     private int mCompressQuality = 70;
  90     private OwnCloudClient mClient;
  91
  92     public FileListListAdapter(Context context, ComponentsGetter transferServiceGetter) {
  93         mContext = context;
  94         mAccount = AccountUtils.getCurrentOwnCloudAccount(mContext);
  95         mTransferServiceGetter = transferServiceGetter;
  96
  97         // Initialise disk cache on background thread
  98         new InitDiskCacheTask().execute();
  99     }
 100
 101     class InitDiskCacheTask extends AsyncTask<File, Void, Void> {
 102         @Override
 103         protected Void doInBackground(File... params) {
 104             synchronized (mDiskCacheLock) {
 105                 mDiskLruCache = new DiskLruImageCache(mContext, "thumbnailCache", DISK_CACHE_SIZE, mCompressFormat,mCompressQuality);
 106
 107                 try {
 108                     OwnCloudAccount ocAccount = new OwnCloudAccount(mAccount, mContext);
 109                     mClient = OwnCloudClientManagerFactory.getDefaultSingleton().
 110                             getClientFor(ocAccount, mContext);
 111                 } catch (AccountNotFoundException e) {
 112                     // TODO Auto-generated catch block
 113                     e.printStackTrace();
 114                 } catch (AuthenticatorException e) {
 115                     // TODO Auto-generated catch block
 116                     e.printStackTrace();
 117                 } catch (OperationCanceledException e) {
 118                     // TODO Auto-generated catch block
 119                     e.printStackTrace();
 120                 } catch (IOException e) {
 121                     // TODO Auto-generated catch block
 122                     e.printStackTrace();
 123                 }
 124
 125                 mDiskCacheStarting = false; // Finished initialization
 126                 mDiskCacheLock.notifyAll(); // Wake any waiting threads
 127             }
 128             return null;
 129         }
 130     }
 131
 132     class BitmapWorkerTask extends AsyncTask<OCFile, Void, Bitmap> {
 133         private final ImageView fileIcon;
 134
 135         public BitmapWorkerTask(ImageView fileIcon) {
 136             this.fileIcon = fileIcon;
 137         }
 138
 139         // Decode image in background.
 140         @Override
 141         protected Bitmap doInBackground(OCFile... params) {
 142             OCFile file = params[0];
 143             final String imageKey = String.valueOf(file.getRemoteId());
 144
 145             // Check disk cache in background thread
 146             Bitmap thumbnail = getBitmapFromDiskCache(imageKey);
 147
 148             // Not found in disk cache
 149             if (thumbnail == null) {
 150                 // Converts dp to pixel
 151                 Resources r = mContext.getResources();
 152                 int px = (int) Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 150, r.getDisplayMetrics()));
 153
 154                 if (file.isDown()){
 155                     Bitmap bitmap = BitmapFactory.decodeFile(file.getStoragePath());
 156                     thumbnail = ThumbnailUtils.extractThumbnail(bitmap, px, px);
 157
 158                     // Add thumbnail to cache
 159                     addBitmapToCache(imageKey, thumbnail);
 160
 161                 } else {
 162                     // Download thumbnail from server
 163                     DefaultHttpClient httpclient = new DefaultHttpClient();
 164                     try {
 165                         httpclient.getCredentialsProvider().setCredentials(
 166                                 new AuthScope(mClient.getBaseUri().toString().replace("https://", ""), 443),
 167                                 new UsernamePasswordCredentials(mClient.getCredentials().getUsername(), mClient.getCredentials().getAuthToken()));
 168
 169
 170                         // TODO change to user preview.png
 171                         //HttpGet httpget = new HttpGet(mClient.getBaseUri() + "/index.php/core/preview.png?file="+URLEncoder.encode(file.getRemotePath(), "UTF-8")+"&x=36&y=36&forceIcon=1");
 172                         HttpGet httpget = new HttpGet(mClient.getBaseUri() + "/ocs/v1.php/thumbnail?x=50&y=50&path=" + URLEncoder.encode(file.getRemotePath(), "UTF-8"));
 173                         HttpResponse response = httpclient.execute(httpget);
 174                         HttpEntity entity = response.getEntity();
 175
 176                         if (entity != null) {
 177                             byte[] bytes = EntityUtils.toByteArray(entity);
 178                             Bitmap bitmap = BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
 179                             thumbnail = ThumbnailUtils.extractThumbnail(bitmap, px, px);
 180
 181                             // Add thumbnail to cache
 182                             if (thumbnail != null){
 183                                 addBitmapToCache(imageKey, thumbnail);
 184                             }
 185                         }
 186                     } catch(Exception e){
 187                         e.printStackTrace();
 188                     }finally {
 189                         httpclient.getConnectionManager().shutdown();
 190                     }
 191                 }
 192             }
 193             return thumbnail;
 194         }
 195
 196         protected void onPostExecute(Bitmap bitmap){
 197             if (bitmap != null){
 198                 fileIcon.setImageBitmap(bitmap);
 199             }
 200         }
 201     }
 202
 203     public void addBitmapToCache(String key, Bitmap bitmap) {
 204         synchronized (mDiskCacheLock) {
 205             if (mDiskLruCache != null && mDiskLruCache.getBitmap(key) == null) {
 206                 mDiskLruCache.put(key, bitmap);
 207             }
 208         }
 209     }
 210
 211     public Bitmap getBitmapFromDiskCache(String key) {
 212         synchronized (mDiskCacheLock) {
 213             // Wait while disk cache is started from background thread
 214             while (mDiskCacheStarting) {
 215                 try {
 216                     mDiskCacheLock.wait();
 217                 } catch (InterruptedException e) {}
 218             }
 219             if (mDiskLruCache != null) {
 220                 return (Bitmap) mDiskLruCache.getBitmap(key);
 221             }
 222         }
 223         return null;
 224     }
 225
 226     @Override
 227     public boolean areAllItemsEnabled() {
 228         return true;
 229     }
 230
 231     @Override
 232     public boolean isEnabled(int position) {
 233         return true;
 234     }
 235
 236     @Override
 237     public int getCount() {
 238         return mFiles != null ? mFiles.size() : 0;
 239     }
 240
 241     @Override
 242     public Object getItem(int position) {
 243         if (mFiles == null || mFiles.size() <= position)
 244             return null;
 245         return mFiles.get(position);
 246     }
 247
 248     @Override
 249     public long getItemId(int position) {
 250         if (mFiles == null || mFiles.size() <= position)
 251             return 0;
 252         return mFiles.get(position).getFileId();
 253     }
 254
 255     @Override
 256     public int getItemViewType(int position) {
 257         return 0;
 258     }
 259
 260     @Override
 261     public View getView(int position, View convertView, ViewGroup parent) {
 262         View view = convertView;
 263         if (view == null) {
 264             LayoutInflater inflator = (LayoutInflater) mContext
 265                     .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
 266             view = inflator.inflate(R.layout.list_item, null);
 267         }
 268
 269         if (mFiles != null && mFiles.size() > position) {
 270             OCFile file = mFiles.get(position);
 271             TextView fileName = (TextView) view.findViewById(R.id.Filename);
 272             String name = file.getFileName();
 273
 274             fileName.setText(name);
 275             ImageView fileIcon = (ImageView) view.findViewById(R.id.imageView1);
 276             ImageView sharedIconV = (ImageView) view.findViewById(R.id.sharedIcon);
 277             ImageView sharedWithMeIconV = (ImageView) view.findViewById(R.id.sharedWithMeIcon);
 278             sharedWithMeIconV.setVisibility(View.GONE);
 279
 280             ImageView localStateView = (ImageView) view.findViewById(R.id.imageView2);
 281             localStateView.bringToFront();
 282             FileDownloaderBinder downloaderBinder = mTransferServiceGetter.getFileDownloaderBinder();
 283             FileUploaderBinder uploaderBinder = mTransferServiceGetter.getFileUploaderBinder();
 284             if (downloaderBinder != null && downloaderBinder.isDownloading(mAccount, file)) {
 285                 localStateView.setImageResource(R.drawable.downloading_file_indicator);
 286                 localStateView.setVisibility(View.VISIBLE);
 287             } else if (uploaderBinder != null && uploaderBinder.isUploading(mAccount, file)) {
 288                 localStateView.setImageResource(R.drawable.uploading_file_indicator);
 289                 localStateView.setVisibility(View.VISIBLE);
 290             } else if (file.isDown()) {
 291                 localStateView.setImageResource(R.drawable.local_file_indicator);
 292                 localStateView.setVisibility(View.VISIBLE);
 293             } else {
 294                 localStateView.setVisibility(View.INVISIBLE);
 295             }
 296
 297             TextView fileSizeV = (TextView) view.findViewById(R.id.file_size);
 298             TextView lastModV = (TextView) view.findViewById(R.id.last_mod);
 299             ImageView checkBoxV = (ImageView) view.findViewById(R.id.custom_checkbox);
 300
 301             if (!file.isFolder()) {
 302                 fileSizeV.setVisibility(View.VISIBLE);
 303                 fileSizeV.setText(DisplayUtils.bytesToHumanReadable(file.getFileLength()));
 304                 lastModV.setVisibility(View.VISIBLE);
 305                 lastModV.setText(DisplayUtils.unixTimeToHumanReadable(file.getModificationTimestamp()));
 306                 // this if-else is needed even thoe fav icon is visible by default
 307                 // because android reuses views in listview
 308                 if (!file.keepInSync()) {
 309                     view.findViewById(R.id.imageView3).setVisibility(View.GONE);
 310                 } else {
 311                     view.findViewById(R.id.imageView3).setVisibility(View.VISIBLE);
 312                 }
 313
 314                 ListView parentList = (ListView)parent;
 315                 if (parentList.getChoiceMode() == ListView.CHOICE_MODE_NONE) {
 316                     checkBoxV.setVisibility(View.GONE);
 317                 } else {
 318                     if (parentList.isItemChecked(position)) {
 319                         checkBoxV.setImageResource(android.R.drawable.checkbox_on_background);
 320                     } else {
 321                         checkBoxV.setImageResource(android.R.drawable.checkbox_off_background);
 322                     }
 323                     checkBoxV.setVisibility(View.VISIBLE);
 324                 }
 325
 326                 // first set thumbnail according to Mimetype, prevents empty thumbnails
 327                 fileIcon.setImageResource(DisplayUtils.getResourceId(file.getMimetype(), file.getFileName()));
 328
 329                 // get Thumbnail if file is image
 330                 if (file.isImage()){
 331                     // Thumbnail in Cache?
 332                     Bitmap thumbnail = getBitmapFromDiskCache(String.valueOf(file.getRemoteId()));
 333                     if (thumbnail != null){
 334                         fileIcon.setImageBitmap(thumbnail);
 335                     } else {
 336                         // generate new Thumbnail
 337                         new BitmapWorkerTask(fileIcon).execute(file);
 338                     }
 339                 }
 340
 341                 if (checkIfFileIsSharedWithMe(file)) {
 342                     sharedWithMeIconV.setVisibility(View.VISIBLE);
 343                 }
 344             }
 345             else {
 346                 fileSizeV.setVisibility(View.INVISIBLE);
 347                 //fileSizeV.setText(DisplayUtils.bytesToHumanReadable(file.getFileLength()));
 348                 lastModV.setVisibility(View.VISIBLE);
 349                 lastModV.setText(DisplayUtils.unixTimeToHumanReadable(file.getModificationTimestamp()));
 350                 checkBoxV.setVisibility(View.GONE);
 351                 view.findViewById(R.id.imageView3).setVisibility(View.GONE);
 352
 353                 if (checkIfFileIsSharedWithMe(file)) {
 354                     fileIcon.setImageResource(R.drawable.shared_with_me_folder);
 355                     sharedWithMeIconV.setVisibility(View.VISIBLE);
 356                 } else {
 357                     fileIcon.setImageResource(DisplayUtils.getResourceId(file.getMimetype(), file.getFileName()));
 358                 }
 359
 360                 // If folder is sharedByLink, icon folder must be changed to
 361                 // folder-public one
 362                 if (file.isShareByLink()) {
 363                     fileIcon.setImageResource(R.drawable.folder_public);
 364                 }
 365             }
 366
 367             if (file.isShareByLink()) {
 368                 sharedIconV.setVisibility(View.VISIBLE);
 369             } else {
 370                 sharedIconV.setVisibility(View.GONE);
 371             }
 372         }
 373
 374         return view;
 375     }
 376
 377     @Override
 378     public int getViewTypeCount() {
 379         return 1;
 380     }
 381
 382     @Override
 383     public boolean hasStableIds() {
 384         return true;
 385     }
 386
 387     @Override
 388     public boolean isEmpty() {
 389         return (mFiles == null || mFiles.isEmpty());
 390     }
 391
 392     /**
 393      * Change the adapted directory for a new one
 394      * @param directory                 New file to adapt. Can be NULL, meaning "no content to adapt".
 395      * @param updatedStorageManager     Optional updated storage manager; used to replace mStorageManager if is different (and not NULL)
 396      */
 397     public void swapDirectory(OCFile directory, FileDataStorageManager updatedStorageManager) {
 398         mFile = directory;
 399         if (updatedStorageManager != null && updatedStorageManager != mStorageManager) {
 400             mStorageManager = updatedStorageManager;
 401             mAccount = AccountUtils.getCurrentOwnCloudAccount(mContext);
 402         }
 403         if (mStorageManager != null) {
 404             mFiles = mStorageManager.getFolderContent(mFile);
 405         } else {
 406             mFiles = null;
 407         }
 408         notifyDataSetChanged();
 409     }
 410
 411     /**
 412      * Check if parent folder does not include 'S' permission and if file/folder
 413      * is shared with me
 414      *
 415      * @param file: OCFile
 416      * @return boolean: True if it is shared with me and false if it is not
 417      */
 418     private boolean checkIfFileIsSharedWithMe(OCFile file) {
 419         return (mFile.getPermissions() != null && !mFile.getPermissions().contains(PERMISSION_SHARED_WITH_ME)
 420                 && file.getPermissions() != null && file.getPermissions().contains(PERMISSION_SHARED_WITH_ME));
 421     }
 422 }