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