src/com/owncloud/android/ui/activity/UploadFilesActivity.java

   1 /**
   2  *   ownCloud Android client application
   3  *
   4  *   @author David A. Velasco
   5  *   Copyright (C) 2015 ownCloud Inc.
   6  *
   7  *   This program is free software: you can redistribute it and/or modify
   8  *   it under the terms of the GNU General Public License version 2,
   9  *   as published by the Free Software Foundation.
  10  *
  11  *   This program is distributed in the hope that it will be useful,
  12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *   GNU General Public License for more details.
  15  *
  16  *   You should have received a copy of the GNU General Public License
  17  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  *
  19  */
  20
  21 package com.owncloud.android.ui.activity;
  22
  23 import java.io.File;
  24
  25 import android.accounts.Account;
  26 import android.content.Intent;
  27 import android.os.AsyncTask;
  28 import android.os.Bundle;
  29 import android.os.Environment;
  30 import android.support.v4.app.DialogFragment;
  31 import android.support.v7.app.ActionBar;
  32 import android.view.MenuItem;
  33 import android.view.View;
  34 import android.view.View.OnClickListener;
  35 import android.view.ViewGroup;
  36 import android.widget.ArrayAdapter;
  37 import android.widget.Button;
  38 import android.widget.TextView;
  39
  40 import com.owncloud.android.R;
  41 import com.owncloud.android.lib.common.utils.Log_OC;
  42 import com.owncloud.android.ui.dialog.ConfirmationDialogFragment;
  43 import com.owncloud.android.ui.dialog.IndeterminateProgressDialog;
  44 import com.owncloud.android.ui.dialog.ConfirmationDialogFragment.ConfirmationDialogFragmentListener;
  45 import com.owncloud.android.ui.fragment.LocalFileListFragment;
  46 import com.owncloud.android.utils.DisplayUtils;
  47 import com.owncloud.android.utils.FileStorageUtils;
  48
  49
  50 /**
  51  * Displays local files and let the user choose what of them wants to upload
  52  * to the current ownCloud account
  53  */
  54
  55 public class UploadFilesActivity extends FileActivity implements
  56     LocalFileListFragment.ContainerActivity, ActionBar.OnNavigationListener,
  57         OnClickListener, ConfirmationDialogFragmentListener {
  58
  59     private ArrayAdapter<String> mDirectories;
  60     private File mCurrentDir = null;
  61     private LocalFileListFragment mFileListFragment;
  62     private Button mCancelBtn;
  63     private Button mUploadBtn;
  64     private Account mAccountOnCreation;
  65     private DialogFragment mCurrentDialog;
  66
  67     public static final String EXTRA_CHOSEN_FILES =
  68             UploadFilesActivity.class.getCanonicalName() + ".EXTRA_CHOSEN_FILES";
  69
  70     public static final int RESULT_OK_AND_MOVE = RESULT_FIRST_USER;
  71
  72     private static final String KEY_DIRECTORY_PATH =
  73             UploadFilesActivity.class.getCanonicalName() + ".KEY_DIRECTORY_PATH";
  74     private static final String TAG = "UploadFilesActivity";
  75     private static final String WAIT_DIALOG_TAG = "WAIT";
  76     private static final String QUERY_TO_MOVE_DIALOG_TAG = "QUERY_TO_MOVE";
  77
  78
  79     @Override
  80     public void onCreate(Bundle savedInstanceState) {
  81         Log_OC.d(TAG, "onCreate() start");
  82         super.onCreate(savedInstanceState);
  83
  84         if(savedInstanceState != null) {
  85             mCurrentDir = new File(savedInstanceState.getString(
  86                     UploadFilesActivity.KEY_DIRECTORY_PATH));
  87         } else {
  88             mCurrentDir = Environment.getExternalStorageDirectory();
  89         }
  90
  91         mAccountOnCreation = getAccount();
  92
  93         /// USER INTERFACE
  94
  95         // Drop-down navigation
  96         mDirectories = new CustomArrayAdapter<String>(this,
  97                 R.layout.support_simple_spinner_dropdown_item);
  98         File currDir = mCurrentDir;
  99         while(currDir != null && currDir.getParentFile() != null) {
 100             mDirectories.add(currDir.getName());
 101             currDir = currDir.getParentFile();
 102         }
 103         mDirectories.add(File.separator);
 104
 105         // Inflate and set the layout view
 106         setContentView(R.layout.upload_files_layout);
 107         mFileListFragment = (LocalFileListFragment)
 108                 getSupportFragmentManager().findFragmentById(R.id.local_files_list);
 109
 110
 111         // Set input controllers
 112         mCancelBtn = (Button) findViewById(R.id.upload_files_btn_cancel);
 113         mCancelBtn.setOnClickListener(this);
 114         mUploadBtn = (Button) findViewById(R.id.upload_files_btn_upload);
 115         mUploadBtn.setOnClickListener(this);
 116
 117
 118         // Action bar setup
 119         ActionBar actionBar = getSupportActionBar();
 120         actionBar.setIcon(DisplayUtils.getSeasonalIconId());
 121         actionBar.setHomeButtonEnabled(true);   // mandatory since Android ICS, according to the
 122                                                 // official documentation
 123         actionBar.setDisplayHomeAsUpEnabled(mCurrentDir != null && mCurrentDir.getName() != null);
 124         actionBar.setDisplayShowTitleEnabled(false);
 125         actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST);
 126         actionBar.setListNavigationCallbacks(mDirectories, this);
 127
 128         // wait dialog
 129         if (mCurrentDialog != null) {
 130             mCurrentDialog.dismiss();
 131             mCurrentDialog = null;
 132         }
 133
 134         Log_OC.d(TAG, "onCreate() end");
 135     }
 136
 137
 138     @Override
 139     public boolean onOptionsItemSelected(MenuItem item) {
 140         boolean retval = true;
 141         switch (item.getItemId()) {
 142             case android.R.id.home: {
 143                 if(mCurrentDir != null && mCurrentDir.getParentFile() != null){
 144                     onBackPressed();
 145                 }
 146                 break;
 147             }
 148             default:
 149                 retval = super.onOptionsItemSelected(item);
 150         }
 151         return retval;
 152     }
 153
 154
 155     @Override
 156     public boolean onNavigationItemSelected(int itemPosition, long itemId) {
 157         int i = itemPosition;
 158         while (i-- != 0) {
 159             onBackPressed();
 160         }
 161         // the next operation triggers a new call to this method, but it's necessary to
 162         // ensure that the name exposed in the action bar is the current directory when the
 163         // user selected it in the navigation list
 164         if (itemPosition != 0)
 165             getSupportActionBar().setSelectedNavigationItem(0);
 166         return true;
 167     }
 168
 169
 170     @Override
 171     public void onBackPressed() {
 172         if (mDirectories.getCount() <= 1) {
 173             finish();
 174             return;
 175         }
 176         popDirname();
 177         mFileListFragment.onNavigateUp();
 178         mCurrentDir = mFileListFragment.getCurrentDirectory();
 179
 180         if(mCurrentDir.getParentFile() == null){
 181             ActionBar actionBar = getSupportActionBar();
 182             actionBar.setDisplayHomeAsUpEnabled(false);
 183         }
 184     }
 185
 186
 187     @Override
 188     protected void onSaveInstanceState(Bundle outState) {
 189         // responsibility of restore is preferred in onCreate() before than in
 190         // onRestoreInstanceState when there are Fragments involved
 191         Log_OC.d(TAG, "onSaveInstanceState() start");
 192         super.onSaveInstanceState(outState);
 193         outState.putString(UploadFilesActivity.KEY_DIRECTORY_PATH, mCurrentDir.getAbsolutePath());
 194         Log_OC.d(TAG, "onSaveInstanceState() end");
 195     }
 196
 197
 198     /**
 199      * Pushes a directory to the drop down list
 200      * @param directory to push
 201      * @throws IllegalArgumentException If the {@link File#isDirectory()} returns false.
 202      */
 203     public void pushDirname(File directory) {
 204         if(!directory.isDirectory()){
 205             throw new IllegalArgumentException("Only directories may be pushed!");
 206         }
 207         mDirectories.insert(directory.getName(), 0);
 208         mCurrentDir = directory;
 209     }
 210
 211     /**
 212      * Pops a directory name from the drop down list
 213      * @return True, unless the stack is empty
 214      */
 215     public boolean popDirname() {
 216         mDirectories.remove(mDirectories.getItem(0));
 217         return !mDirectories.isEmpty();
 218     }
 219
 220
 221     // Custom array adapter to override text colors
 222     private class CustomArrayAdapter<T> extends ArrayAdapter<T> {
 223
 224         public CustomArrayAdapter(UploadFilesActivity ctx, int view) {
 225             super(ctx, view);
 226         }
 227
 228         public View getView(int position, View convertView, ViewGroup parent) {
 229             View v = super.getView(position, convertView, parent);
 230
 231             ((TextView) v).setTextColor(getResources().getColorStateList(
 232                     android.R.color.white));
 233             return v;
 234         }
 235
 236         public View getDropDownView(int position, View convertView,
 237                 ViewGroup parent) {
 238             View v = super.getDropDownView(position, convertView, parent);
 239
 240             ((TextView) v).setTextColor(getResources().getColorStateList(
 241                     android.R.color.white));
 242
 243             return v;
 244         }
 245
 246     }
 247
 248     /**
 249      * {@inheritDoc}
 250      */
 251     @Override
 252     public void onDirectoryClick(File directory) {
 253         pushDirname(directory);
 254         ActionBar actionBar = getSupportActionBar();
 255         actionBar.setDisplayHomeAsUpEnabled(true);
 256     }
 257
 258
 259     /**
 260      * {@inheritDoc}
 261      */
 262     @Override
 263     public void onFileClick(File file) {
 264         // nothing to do
 265     }
 266
 267     /**
 268      * {@inheritDoc}
 269      */
 270     @Override
 271     public File getInitialDirectory() {
 272         return mCurrentDir;
 273     }
 274
 275
 276     /**
 277      * Performs corresponding action when user presses 'Cancel' or 'Upload' button
 278      *
 279      * TODO Make here the real request to the Upload service ; will require to receive the account and
 280      * target folder where the upload must be done in the received intent.
 281      */
 282     @Override
 283     public void onClick(View v) {
 284         if (v.getId() == R.id.upload_files_btn_cancel) {
 285             setResult(RESULT_CANCELED);
 286             finish();
 287
 288         } else if (v.getId() == R.id.upload_files_btn_upload) {
 289             new CheckAvailableSpaceTask().execute();
 290         }
 291     }
 292
 293
 294     /**
 295      * Asynchronous task checking if there is space enough to copy all the files chosen
 296      * to upload into the ownCloud local folder.
 297      *
 298      * Maybe an AsyncTask is not strictly necessary, but who really knows.
 299      */
 300     private class CheckAvailableSpaceTask extends AsyncTask<Void, Void, Boolean> {
 301
 302         /**
 303          * Updates the UI before trying the movement
 304          */
 305         @Override
 306         protected void onPreExecute () {
 307             /// progress dialog and disable 'Move' button
 308             mCurrentDialog = IndeterminateProgressDialog.newInstance(R.string.wait_a_moment, false);
 309             mCurrentDialog.show(getSupportFragmentManager(), WAIT_DIALOG_TAG);
 310         }
 311
 312
 313         /**
 314          * Checks the available space
 315          *
 316          * @return     'True' if there is space enough.
 317          */
 318         @Override
 319         protected Boolean doInBackground(Void... params) {
 320             String[] checkedFilePaths = mFileListFragment.getCheckedFilePaths();
 321             long total = 0;
 322             for (int i=0; checkedFilePaths != null && i < checkedFilePaths.length ; i++) {
 323                 String localPath = checkedFilePaths[i];
 324                 File localFile = new File(localPath);
 325                 total += localFile.length();
 326             }
 327             return (new Boolean(FileStorageUtils.getUsableSpace(mAccountOnCreation.name) >= total));
 328         }
 329
 330         /**
 331          * Updates the activity UI after the check of space is done.
 332          *
 333          * If there is not space enough. shows a new dialog to query the user if wants to move the files instead
 334          * of copy them.
 335          *
 336          * @param result        'True' when there is space enough to copy all the selected files.
 337          */
 338         @Override
 339         protected void onPostExecute(Boolean result) {
 340             mCurrentDialog.dismiss();
 341             mCurrentDialog = null;
 342
 343             if (result) {
 344                 // return the list of selected files (success)
 345                 Intent data = new Intent();
 346                 data.putExtra(EXTRA_CHOSEN_FILES, mFileListFragment.getCheckedFilePaths());
 347                 setResult(RESULT_OK, data);
 348                 finish();
 349
 350             } else {
 351                 // show a dialog to query the user if wants to move the selected files
 352                 // to the ownCloud folder instead of copying
 353                 String[] args = {getString(R.string.app_name)};
 354                 ConfirmationDialogFragment dialog = ConfirmationDialogFragment.newInstance(
 355                     R.string.upload_query_move_foreign_files, args, R.string.common_yes, -1, R.string.common_no
 356                 );
 357                 dialog.setOnConfirmationListener(UploadFilesActivity.this);
 358                 dialog.show(getSupportFragmentManager(), QUERY_TO_MOVE_DIALOG_TAG);
 359             }
 360         }
 361     }
 362
 363     @Override
 364     public void onConfirmation(String callerTag) {
 365         Log_OC.d(TAG, "Positive button in dialog was clicked; dialog tag is " + callerTag);
 366         if (callerTag.equals(QUERY_TO_MOVE_DIALOG_TAG)) {
 367             // return the list of selected files to the caller activity (success),
 368             // signaling that they should be moved to the ownCloud folder, instead of copied
 369             Intent data = new Intent();
 370             data.putExtra(EXTRA_CHOSEN_FILES, mFileListFragment.getCheckedFilePaths());
 371             setResult(RESULT_OK_AND_MOVE, data);
 372             finish();
 373         }
 374     }
 375
 376
 377     @Override
 378     public void onNeutral(String callerTag) {
 379         Log_OC.d(TAG, "Phantom neutral button in dialog was clicked; dialog tag is " + callerTag);
 380     }
 381
 382
 383     @Override
 384     public void onCancel(String callerTag) {
 385         /// nothing to do; don't finish, let the user change the selection
 386         Log_OC.d(TAG, "Negative button in dialog was clicked; dialog tag is " + callerTag);
 387     }
 388
 389
 390     @Override
 391     protected void onAccountSet(boolean stateWasRecovered) {
 392         super.onAccountSet(stateWasRecovered);
 393         if (getAccount() != null) {
 394             if (!mAccountOnCreation.equals(getAccount())) {
 395                 setResult(RESULT_CANCELED);
 396                 finish();
 397             }
 398
 399         } else {
 400             setResult(RESULT_CANCELED);
 401             finish();
 402         }
 403     }
 404
 405
 406 }