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.lib.common.utils.Log_OC;
  43 import com.owncloud.android.ui.dialog.ConfirmationDialogFragment;
  44 import com.owncloud.android.ui.dialog.IndeterminateProgressDialog;
  45 import com.owncloud.android.ui.dialog.ConfirmationDialogFragment.ConfirmationDialogFragmentListener;
  46 import com.owncloud.android.ui.fragment.LocalFileListFragment;
  47 import com.owncloud.android.utils.DisplayUtils;
  48 import com.owncloud.android.utils.FileStorageUtils;
  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                     toggleOffSelectAll();
 158                 }else{
 159                     toggleOnSelectAll(item);
 160                 }
 161                 break;
 162             }
 163             default:
 164                 retval = super.onOptionsItemSelected(item);
 165         }
 166         return retval;
 167     }
 168     public void toggleOffSelectAll(MenuItem item){
 169         selectAllToggled = false;
 170         item.setIcon(android.R.drawable.checkbox_off_background);
 171         mFileListFragment.deselectAll();
 172     }
 173     public void toggleOffSelectAll(){
 174         MenuItem item = menu.findItem(R.id.actionbar_select_all);
 175         toggleOffSelectAll(item);
 176     }
 177     public void toggleOnSelectAll(MenuItem item){
 178         selectAllToggled = true;
 179         item.setIcon(android.R.drawable.checkbox_on_background);
 180         mFileListFragment.selectAll();
 181     }
 182
 183     @Override
 184     public boolean onNavigationItemSelected(int itemPosition, long itemId) {
 185         int i = itemPosition;
 186         while (i-- != 0) {
 187             onBackPressed();
 188         }
 189         // the next operation triggers a new call to this method, but it's necessary to
 190         // ensure that the name exposed in the action bar is the current directory when the
 191         // user selected it in the navigation list
 192         if (itemPosition != 0)
 193             getSupportActionBar().setSelectedNavigationItem(0);
 194         return true;
 195     }
 196
 197
 198     @Override
 199     public void onBackPressed() {
 200         if (mDirectories.getCount() <= 1) {
 201             finish();
 202             return;
 203         }
 204         popDirname();
 205         mFileListFragment.onNavigateUp();
 206         mCurrentDir = mFileListFragment.getCurrentDirectory();
 207
 208         if(mCurrentDir.getParentFile() == null){
 209             ActionBar actionBar = getSupportActionBar();
 210             actionBar.setDisplayHomeAsUpEnabled(false);
 211         }
 212         toggleOffSelectAll();
 213     }
 214
 215
 216     @Override
 217     protected void onSaveInstanceState(Bundle outState) {
 218         // responsibility of restore is preferred in onCreate() before than in onRestoreInstanceState when there are Fragments involved
 219         Log_OC.d(TAG, "onSaveInstanceState() start");
 220         super.onSaveInstanceState(outState);
 221         outState.putString(UploadFilesActivity.KEY_DIRECTORY_PATH, mCurrentDir.getAbsolutePath());
 222         Log_OC.d(TAG, "onSaveInstanceState() end");
 223     }
 224
 225
 226     /**
 227      * Pushes a directory to the drop down list
 228      * @param directory to push
 229      * @throws IllegalArgumentException If the {@link File#isDirectory()} returns false.
 230      */
 231     public void pushDirname(File directory) {
 232         if(!directory.isDirectory()){
 233             throw new IllegalArgumentException("Only directories may be pushed!");
 234         }
 235         mDirectories.insert(directory.getName(), 0);
 236         mCurrentDir = directory;
 237     }
 238
 239     /**
 240      * Pops a directory name from the drop down list
 241      * @return True, unless the stack is empty
 242      */
 243     public boolean popDirname() {
 244         mDirectories.remove(mDirectories.getItem(0));
 245         return !mDirectories.isEmpty();
 246     }
 247
 248
 249     // Custom array adapter to override text colors
 250     private class CustomArrayAdapter<T> extends ArrayAdapter<T> {
 251
 252         public CustomArrayAdapter(UploadFilesActivity ctx, int view) {
 253             super(ctx, view);
 254         }
 255
 256         public View getView(int position, View convertView, ViewGroup parent) {
 257             View v = super.getView(position, convertView, parent);
 258
 259             ((TextView) v).setTextColor(getResources().getColorStateList(
 260                     android.R.color.white));
 261             return v;
 262         }
 263
 264         public View getDropDownView(int position, View convertView,
 265                 ViewGroup parent) {
 266             View v = super.getDropDownView(position, convertView, parent);
 267
 268             ((TextView) v).setTextColor(getResources().getColorStateList(
 269                     android.R.color.white));
 270
 271             return v;
 272         }
 273
 274     }
 275
 276     /**
 277      * {@inheritDoc}
 278      */
 279     @Override
 280     public void onDirectoryClick(File directory) {
 281         pushDirname(directory);
 282         ActionBar actionBar = getSupportActionBar();
 283         actionBar.setDisplayHomeAsUpEnabled(true);
 284         toggleOffSelectAll();
 285     }
 286
 287
 288     /**
 289      * {@inheritDoc}
 290      */
 291     @Override
 292     public void onFileClick(File file) {
 293         // nothing to do
 294     }
 295
 296     /**
 297      * {@inheritDoc}
 298      */
 299     @Override
 300     public File getInitialDirectory() {
 301         return mCurrentDir;
 302     }
 303
 304
 305     /**
 306      * Performs corresponding action when user presses 'Cancel' or 'Upload' button
 307      *
 308      * TODO Make here the real request to the Upload service ; will require to receive the account and
 309      * target folder where the upload must be done in the received intent.
 310      */
 311     @Override
 312     public void onClick(View v) {
 313         if (v.getId() == R.id.upload_files_btn_cancel) {
 314             setResult(RESULT_CANCELED);
 315             finish();
 316
 317         } else if (v.getId() == R.id.upload_files_btn_upload) {
 318             new CheckAvailableSpaceTask().execute();
 319         }
 320     }
 321
 322
 323     /**
 324      * Asynchronous task checking if there is space enough to copy all the files chosen
 325      * to upload into the ownCloud local folder.
 326      *
 327      * Maybe an AsyncTask is not strictly necessary, but who really knows.
 328      *
 329      * @author David A. Velasco
 330      */
 331     private class CheckAvailableSpaceTask extends AsyncTask<Void, Void, Boolean> {
 332
 333         /**
 334          * Updates the UI before trying the movement
 335          */
 336         @Override
 337         protected void onPreExecute () {
 338             /// progress dialog and disable 'Move' button
 339             mCurrentDialog = IndeterminateProgressDialog.newInstance(R.string.wait_a_moment, false);
 340             mCurrentDialog.show(getSupportFragmentManager(), WAIT_DIALOG_TAG);
 341         }
 342
 343
 344         /**
 345          * Checks the available space
 346          *
 347          * @return     'True' if there is space enough.
 348          */
 349         @Override
 350         protected Boolean doInBackground(Void... params) {
 351             String[] checkedFilePaths = mFileListFragment.getCheckedFilePaths();
 352             long total = 0;
 353             for (int i=0; checkedFilePaths != null && i < checkedFilePaths.length ; i++) {
 354                 String localPath = checkedFilePaths[i];
 355                 File localFile = new File(localPath);
 356                 total += localFile.length();
 357             }
 358             return (FileStorageUtils.getUsableSpace(mAccountOnCreation.name) >= total);
 359         }
 360
 361         /**
 362          * Updates the activity UI after the check of space is done.
 363          *
 364          * If there is not space enough. shows a new dialog to query the user if wants to move the files instead
 365          * of copy them.
 366          *
 367          * @param result        'True' when there is space enough to copy all the selected files.
 368          */
 369         @Override
 370         protected void onPostExecute(Boolean result) {
 371             mCurrentDialog.dismiss();
 372             mCurrentDialog = null;
 373
 374             if (result) {
 375                 // return the list of selected files (success)
 376                 Intent data = new Intent();
 377                 data.putExtra(EXTRA_CHOSEN_FILES, mFileListFragment.getCheckedFilePaths());
 378                 setResult(RESULT_OK, data);
 379                 finish();
 380
 381             } else {
 382                 // show a dialog to query the user if wants to move the selected files to the ownCloud folder instead of copying
 383                 String[] args = {getString(R.string.app_name)};
 384                 ConfirmationDialogFragment dialog = ConfirmationDialogFragment.newInstance(R.string.upload_query_move_foreign_files, args, R.string.common_yes, -1, R.string.common_no);
 385                 dialog.setOnConfirmationListener(UploadFilesActivity.this);
 386                 dialog.show(getSupportFragmentManager(), QUERY_TO_MOVE_DIALOG_TAG);
 387             }
 388         }
 389     }
 390
 391     @Override
 392     public void onConfirmation(String callerTag) {
 393         Log_OC.d(TAG, "Positive button in dialog was clicked; dialog tag is " + callerTag);
 394         if (callerTag.equals(QUERY_TO_MOVE_DIALOG_TAG)) {
 395             // return the list of selected files to the caller activity (success), signaling that they should be moved to the ownCloud folder, instead of copied
 396             Intent data = new Intent();
 397             data.putExtra(EXTRA_CHOSEN_FILES, mFileListFragment.getCheckedFilePaths());
 398             setResult(RESULT_OK_AND_MOVE, data);
 399             finish();
 400         }
 401     }
 402
 403
 404     @Override
 405     public void onNeutral(String callerTag) {
 406         Log_OC.d(TAG, "Phantom neutral button in dialog was clicked; dialog tag is " + callerTag);
 407     }
 408
 409
 410     @Override
 411     public void onCancel(String callerTag) {
 412         /// nothing to do; don't finish, let the user change the selection
 413         Log_OC.d(TAG, "Negative button in dialog was clicked; dialog tag is " + callerTag);
 414     }
 415
 416
 417     @Override
 418     protected void onAccountSet(boolean stateWasRecovered) {
 419         super.onAccountSet(stateWasRecovered);
 420         if (getAccount() != null) {
 421             if (!mAccountOnCreation.equals(getAccount())) {
 422                 setResult(RESULT_CANCELED);
 423                 finish();
 424             }
 425
 426         } else {
 427             setResult(RESULT_CANCELED);
 428             finish();
 429         }
 430     }
 431
 432
 433 }