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

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2012-2013 ownCloud Inc.
   3  *
   4  *   This program is free software: you can redistribute it and/or modify
   5  *   it under the terms of the GNU General Public License version 2,
   6  *   as published by the Free Software Foundation.
   7  *
   8  *   This program is distributed in the hope that it will be useful,
   9  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  *   GNU General Public License for more details.
  12  *
  13  *   You should have received a copy of the GNU General Public License
  14  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15  *
  16  */
  17
  18 package com.owncloud.android.ui.activity;
  19
  20 import java.io.File;
  21
  22 import android.accounts.Account;
  23 import android.content.Intent;
  24 import android.os.AsyncTask;
  25 import android.os.Bundle;
  26 import android.os.Environment;
  27 import android.support.v4.app.DialogFragment;
  28 import android.view.View;
  29 import android.view.View.OnClickListener;
  30 import android.view.ViewGroup;
  31 import android.widget.ArrayAdapter;
  32 import android.widget.Button;
  33 import android.widget.TextView;
  34
  35 import com.actionbarsherlock.app.ActionBar;
  36 import com.actionbarsherlock.app.ActionBar.OnNavigationListener;
  37 import com.actionbarsherlock.internal.view.menu.ActionMenuItemView;
  38 import com.actionbarsherlock.view.Menu;
  39 import com.actionbarsherlock.view.MenuInflater;
  40 import com.actionbarsherlock.view.MenuItem;
  41 import com.owncloud.android.R;
  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 import com.owncloud.android.utils.Log_OC;
  49
  50
  51 /**
  52  * Displays local files and let the user choose what of them wants to upload
  53  * to the current ownCloud account
  54  *
  55  * @author David A. Velasco
  56  *
  57  */
  58
  59 public class UploadFilesActivity extends FileActivity implements
  60     LocalFileListFragment.ContainerActivity, OnNavigationListener, OnClickListener, ConfirmationDialogFragmentListener {
  61
  62     private ArrayAdapter<String> mDirectories;
  63     private File mCurrentDir = null;
  64     private LocalFileListFragment mFileListFragment;
  65     private Button mCancelBtn;
  66     private Button mUploadBtn;
  67     private Account mAccountOnCreation;
  68     private DialogFragment mCurrentDialog;
  69
  70     public static final String EXTRA_CHOSEN_FILES = UploadFilesActivity.class.getCanonicalName() + ".EXTRA_CHOSEN_FILES";
  71
  72     public static final int RESULT_OK_AND_MOVE = RESULT_FIRST_USER;
  73
  74     private static final String KEY_DIRECTORY_PATH = UploadFilesActivity.class.getCanonicalName() + ".KEY_DIRECTORY_PATH";
  75     private static final String TAG = "UploadFilesActivity";
  76     private static final String WAIT_DIALOG_TAG = "WAIT";
  77     private static final String QUERY_TO_MOVE_DIALOG_TAG = "QUERY_TO_MOVE";
  78
  79     private boolean selectAllToggled = false;
  80     private Menu menu;
  81
  82     @Override
  83     public void onCreate(Bundle savedInstanceState) {
  84         Log_OC.d(TAG, "onCreate() start");
  85         super.onCreate(savedInstanceState);
  86
  87         if(savedInstanceState != null) {
  88             mCurrentDir = new File(savedInstanceState.getString(UploadFilesActivity.KEY_DIRECTORY_PATH));
  89         } else {
  90             mCurrentDir = Environment.getExternalStorageDirectory();
  91         }
  92
  93         mAccountOnCreation = getAccount();
  94
  95         /// USER INTERFACE
  96
  97         // Drop-down navigation
  98         mDirectories = new CustomArrayAdapter<String>(this, R.layout.sherlock_spinner_dropdown_item);
  99         File currDir = mCurrentDir;
 100         while(currDir != null && currDir.getParentFile() != null) {
 101             mDirectories.add(currDir.getName());
 102             currDir = currDir.getParentFile();
 103         }
 104         mDirectories.add(File.separator);
 105
 106         // Inflate and set the layout view
 107         setContentView(R.layout.upload_files_layout);
 108         mFileListFragment = (LocalFileListFragment) 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 official documentation
 122         actionBar.setDisplayHomeAsUpEnabled(mCurrentDir != null && mCurrentDir.getName() != null);
 123         actionBar.setDisplayShowTitleEnabled(false);
 124         actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST);
 125         actionBar.setListNavigationCallbacks(mDirectories, this);
 126
 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     @Override
 137     public boolean onCreateOptionsMenu(Menu menu) {
 138         // Inflate the menu items for use in the action bar
 139         MenuInflater inflater = getSherlock().getMenuInflater();
 140         inflater.inflate(R.menu.file_select_all, menu);
 141         this.menu = menu;
 142         return true;
 143     }
 144
 145     @Override
 146     public boolean onOptionsItemSelected(MenuItem item) {
 147         boolean retval = true;
 148         switch (item.getItemId()) {
 149             case android.R.id.home: {
 150                 if(mCurrentDir != null && mCurrentDir.getParentFile() != null){
 151                     onBackPressed();
 152                 }
 153                 break;
 154             }
 155             case R.id.actionbar_select_all:{
 156                 if(selectAllToggled){
 157                     // deselect all
 158                     toggleOffSelectAll();
 159                 }else{
 160                     // select alls
 161                     toggleOnSelectAll(item);
 162                 }
 163                 break;
 164             }
 165             default:
 166                 retval = super.onOptionsItemSelected(item);
 167         }
 168         return retval;
 169     }
 170     public void toggleOffSelectAll(MenuItem item){
 171         selectAllToggled = false;
 172         item.setIcon(android.R.drawable.checkbox_off_background);
 173 //        mFileListFragment.listDirectory()
 174         mFileListFragment.deselectAll();
 175     }
 176     public void toggleOffSelectAll(){
 177         MenuItem item = menu.findItem(R.id.actionbar_select_all);
 178         toggleOffSelectAll(item);
 179     }
 180     public void toggleOnSelectAll(MenuItem item){
 181         selectAllToggled = true;
 182         item.setIcon(android.R.drawable.checkbox_on_background);
 183
 184         mFileListFragment.selectAll();
 185     }
 186
 187     @Override
 188     public boolean onNavigationItemSelected(int itemPosition, long itemId) {
 189         int i = itemPosition;
 190         while (i-- != 0) {
 191             onBackPressed();
 192         }
 193         // the next operation triggers a new call to this method, but it's necessary to
 194         // ensure that the name exposed in the action bar is the current directory when the
 195         // user selected it in the navigation list
 196         if (itemPosition != 0)
 197             getSupportActionBar().setSelectedNavigationItem(0);
 198         return true;
 199     }
 200
 201
 202     @Override
 203     public void onBackPressed() {
 204         if (mDirectories.getCount() <= 1) {
 205             finish();
 206             return;
 207         }
 208         popDirname();
 209         mFileListFragment.onNavigateUp();
 210         mCurrentDir = mFileListFragment.getCurrentDirectory();
 211
 212         if(mCurrentDir.getParentFile() == null){
 213             ActionBar actionBar = getSupportActionBar();
 214             actionBar.setDisplayHomeAsUpEnabled(false);
 215         }
 216         toggleOffSelectAll();
 217     }
 218
 219
 220     @Override
 221     protected void onSaveInstanceState(Bundle outState) {
 222         // responsibility of restore is preferred in onCreate() before than in onRestoreInstanceState when there are Fragments involved
 223         Log_OC.d(TAG, "onSaveInstanceState() start");
 224         super.onSaveInstanceState(outState);
 225         outState.putString(UploadFilesActivity.KEY_DIRECTORY_PATH, mCurrentDir.getAbsolutePath());
 226         Log_OC.d(TAG, "onSaveInstanceState() end");
 227     }
 228
 229
 230     /**
 231      * Pushes a directory to the drop down list
 232      * @param directory to push
 233      * @throws IllegalArgumentException If the {@link File#isDirectory()} returns false.
 234      */
 235     public void pushDirname(File directory) {
 236         if(!directory.isDirectory()){
 237             throw new IllegalArgumentException("Only directories may be pushed!");
 238         }
 239         mDirectories.insert(directory.getName(), 0);
 240         mCurrentDir = directory;
 241     }
 242
 243     /**
 244      * Pops a directory name from the drop down list
 245      * @return True, unless the stack is empty
 246      */
 247     public boolean popDirname() {
 248         mDirectories.remove(mDirectories.getItem(0));
 249         return !mDirectories.isEmpty();
 250     }
 251
 252
 253     // Custom array adapter to override text colors
 254     private class CustomArrayAdapter<T> extends ArrayAdapter<T> {
 255
 256         public CustomArrayAdapter(UploadFilesActivity ctx, int view) {
 257             super(ctx, view);
 258         }
 259
 260         public View getView(int position, View convertView, ViewGroup parent) {
 261             View v = super.getView(position, convertView, parent);
 262
 263             ((TextView) v).setTextColor(getResources().getColorStateList(
 264                     android.R.color.white));
 265             return v;
 266         }
 267
 268         public View getDropDownView(int position, View convertView,
 269                 ViewGroup parent) {
 270             View v = super.getDropDownView(position, convertView, parent);
 271
 272             ((TextView) v).setTextColor(getResources().getColorStateList(
 273                     android.R.color.white));
 274
 275             return v;
 276         }
 277
 278     }
 279
 280     /**
 281      * {@inheritDoc}
 282      */
 283     @Override
 284     public void onDirectoryClick(File directory) {
 285         pushDirname(directory);
 286         ActionBar actionBar = getSupportActionBar();
 287         actionBar.setDisplayHomeAsUpEnabled(true);
 288         toggleOffSelectAll();
 289     }
 290
 291
 292     /**
 293      * {@inheritDoc}
 294      */
 295     @Override
 296     public void onFileClick(File file) {
 297         // nothing to do
 298     }
 299
 300     /**
 301      * {@inheritDoc}
 302      */
 303     @Override
 304     public File getInitialDirectory() {
 305         return mCurrentDir;
 306     }
 307
 308
 309     /**
 310      * Performs corresponding action when user presses 'Cancel' or 'Upload' button
 311      *
 312      * TODO Make here the real request to the Upload service ; will require to receive the account and
 313      * target folder where the upload must be done in the received intent.
 314      */
 315     @Override
 316     public void onClick(View v) {
 317         if (v.getId() == R.id.upload_files_btn_cancel) {
 318             setResult(RESULT_CANCELED);
 319             finish();
 320
 321         } else if (v.getId() == R.id.upload_files_btn_upload) {
 322             new CheckAvailableSpaceTask().execute();
 323         }
 324     }
 325
 326
 327     /**
 328      * Asynchronous task checking if there is space enough to copy all the files chosen
 329      * to upload into the ownCloud local folder.
 330      *
 331      * Maybe an AsyncTask is not strictly necessary, but who really knows.
 332      *
 333      * @author David A. Velasco
 334      */
 335     private class CheckAvailableSpaceTask extends AsyncTask<Void, Void, Boolean> {
 336
 337         /**
 338          * Updates the UI before trying the movement
 339          */
 340         @Override
 341         protected void onPreExecute () {
 342             /// progress dialog and disable 'Move' button
 343             mCurrentDialog = IndeterminateProgressDialog.newInstance(R.string.wait_a_moment, false);
 344             mCurrentDialog.show(getSupportFragmentManager(), WAIT_DIALOG_TAG);
 345         }
 346
 347
 348         /**
 349          * Checks the available space
 350          *
 351          * @return     'True' if there is space enough.
 352          */
 353         @Override
 354         protected Boolean doInBackground(Void... params) {
 355             String[] checkedFilePaths = mFileListFragment.getCheckedFilePaths();
 356             long total = 0;
 357             for (int i=0; checkedFilePaths != null && i < checkedFilePaths.length ; i++) {
 358                 String localPath = checkedFilePaths[i];
 359                 File localFile = new File(localPath);
 360                 total += localFile.length();
 361             }
 362             return (FileStorageUtils.getUsableSpace(mAccountOnCreation.name) >= total);
 363         }
 364
 365         /**
 366          * Updates the activity UI after the check of space is done.
 367          *
 368          * If there is not space enough. shows a new dialog to query the user if wants to move the files instead
 369          * of copy them.
 370          *
 371          * @param result        'True' when there is space enough to copy all the selected files.
 372          */
 373         @Override
 374         protected void onPostExecute(Boolean result) {
 375             mCurrentDialog.dismiss();
 376             mCurrentDialog = null;
 377
 378             if (result) {
 379                 // return the list of selected files (success)
 380                 Intent data = new Intent();
 381                 data.putExtra(EXTRA_CHOSEN_FILES, mFileListFragment.getCheckedFilePaths());
 382                 setResult(RESULT_OK, data);
 383                 finish();
 384
 385             } else {
 386                 // show a dialog to query the user if wants to move the selected files to the ownCloud folder instead of copying
 387                 String[] args = {getString(R.string.app_name)};
 388                 ConfirmationDialogFragment dialog = ConfirmationDialogFragment.newInstance(R.string.upload_query_move_foreign_files, args, R.string.common_yes, -1, R.string.common_no);
 389                 dialog.setOnConfirmationListener(UploadFilesActivity.this);
 390                 dialog.show(getSupportFragmentManager(), QUERY_TO_MOVE_DIALOG_TAG);
 391             }
 392         }
 393     }
 394
 395     @Override
 396     public void onConfirmation(String callerTag) {
 397         Log_OC.d(TAG, "Positive button in dialog was clicked; dialog tag is " + callerTag);
 398         if (callerTag.equals(QUERY_TO_MOVE_DIALOG_TAG)) {
 399             // return the list of selected files to the caller activity (success), signaling that they should be moved to the ownCloud folder, instead of copied
 400             Intent data = new Intent();
 401             data.putExtra(EXTRA_CHOSEN_FILES, mFileListFragment.getCheckedFilePaths());
 402             setResult(RESULT_OK_AND_MOVE, data);
 403             finish();
 404         }
 405     }
 406
 407
 408     @Override
 409     public void onNeutral(String callerTag) {
 410         Log_OC.d(TAG, "Phantom neutral button in dialog was clicked; dialog tag is " + callerTag);
 411     }
 412
 413
 414     @Override
 415     public void onCancel(String callerTag) {
 416         /// nothing to do; don't finish, let the user change the selection
 417         Log_OC.d(TAG, "Negative button in dialog was clicked; dialog tag is " + callerTag);
 418     }
 419
 420
 421     @Override
 422     protected void onAccountSet(boolean stateWasRecovered) {
 423         super.onAccountSet(stateWasRecovered);
 424         if (getAccount() != null) {
 425             if (!mAccountOnCreation.equals(getAccount())) {
 426                 setResult(RESULT_CANCELED);
 427                 finish();
 428             }
 429
 430         } else {
 431             setResult(RESULT_CANCELED);
 432             finish();
 433         }
 434     }
 435
 436
 437 }