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.net.Uri;
  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.view.View;
  30 import android.view.View.OnClickListener;
  31 import android.view.ViewGroup;
  32 import android.widget.ArrayAdapter;
  33 import android.widget.Button;
  34 import android.widget.MediaController;
  35 import android.widget.TextView;
  36
  37 import com.actionbarsherlock.app.ActionBar;
  38 import com.actionbarsherlock.app.ActionBar.OnNavigationListener;
  39 import com.actionbarsherlock.app.SherlockFragmentActivity;
  40 import com.actionbarsherlock.view.MenuItem;
  41 import com.owncloud.android.datamodel.FileDataStorageManager;
  42 import com.owncloud.android.datamodel.OCFile;
  43 import com.owncloud.android.ui.dialog.IndeterminateProgressDialog;
  44 import com.owncloud.android.ui.fragment.ConfirmationDialogFragment;
  45 import com.owncloud.android.ui.fragment.LocalFileListFragment;
  46 import com.owncloud.android.ui.fragment.ConfirmationDialogFragment.ConfirmationDialogFragmentListener;
  47 import com.owncloud.android.utils.FileStorageUtils;
  48
  49 import com.owncloud.android.AccountUtils;
  50 import com.owncloud.android.Log_OC;
  51 import com.owncloud.android.R;
  52
  53 /**
  54  * Displays local files and let the user choose what of them wants to upload
  55  * to the current ownCloud account
  56  *
  57  * @author David A. Velasco
  58  *
  59  */
  60
  61 public class UploadFilesActivity extends FileActivity implements
  62     LocalFileListFragment.ContainerActivity, OnNavigationListener, OnClickListener, ConfirmationDialogFragmentListener {
  63
  64     private ArrayAdapter<String> mDirectories;
  65     private File mCurrentDir = null;
  66     private LocalFileListFragment mFileListFragment;
  67     private Button mCancelBtn;
  68     private Button mUploadBtn;
  69     private Account mAccountOnCreation;
  70     private DialogFragment mCurrentDialog;
  71
  72     public static final String EXTRA_CHOSEN_FILES = UploadFilesActivity.class.getCanonicalName() + ".EXTRA_CHOSEN_FILES";
  73
  74     public static final int RESULT_OK_AND_MOVE = RESULT_FIRST_USER;
  75
  76     private static final String KEY_DIRECTORY_PATH = UploadFilesActivity.class.getCanonicalName() + ".KEY_DIRECTORY_PATH";
  77     private static final String TAG = "UploadFilesActivity";
  78     private static final String WAIT_DIALOG_TAG = "WAIT";
  79     private static final String QUERY_TO_MOVE_DIALOG_TAG = "QUERY_TO_MOVE";
  80
  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         // Action bar setup
 118         ActionBar actionBar = getSupportActionBar();
 119         actionBar.setHomeButtonEnabled(true);   // mandatory since Android ICS, according to the official documentation
 120         actionBar.setDisplayHomeAsUpEnabled(mCurrentDir != null && mCurrentDir.getName() != null);
 121         actionBar.setDisplayShowTitleEnabled(false);
 122         actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST);
 123         actionBar.setListNavigationCallbacks(mDirectories, this);
 124
 125         // wait dialog
 126         if (mCurrentDialog != null) {
 127             mCurrentDialog.dismiss();
 128             mCurrentDialog = null;
 129         }
 130
 131         Log_OC.d(TAG, "onCreate() end");
 132     }
 133
 134
 135     @Override
 136     public boolean onOptionsItemSelected(MenuItem item) {
 137         boolean retval = true;
 138         switch (item.getItemId()) {
 139             case android.R.id.home: {
 140                 if(mCurrentDir != null && mCurrentDir.getParentFile() != null){
 141                     onBackPressed();
 142                 }
 143                 break;
 144             }
 145             default:
 146                 retval = super.onOptionsItemSelected(item);
 147         }
 148         return retval;
 149     }
 150
 151
 152     @Override
 153     public boolean onNavigationItemSelected(int itemPosition, long itemId) {
 154         int i = itemPosition;
 155         while (i-- != 0) {
 156             onBackPressed();
 157         }
 158         // the next operation triggers a new call to this method, but it's necessary to
 159         // ensure that the name exposed in the action bar is the current directory when the
 160         // user selected it in the navigation list
 161         if (itemPosition != 0)
 162             getSupportActionBar().setSelectedNavigationItem(0);
 163         return true;
 164     }
 165
 166
 167     @Override
 168     public void onBackPressed() {
 169         if (mDirectories.getCount() <= 1) {
 170             finish();
 171             return;
 172         }
 173         popDirname();
 174         mFileListFragment.onNavigateUp();
 175         mCurrentDir = mFileListFragment.getCurrentDirectory();
 176
 177         if(mCurrentDir.getParentFile() == null){
 178             ActionBar actionBar = getSupportActionBar();
 179             actionBar.setDisplayHomeAsUpEnabled(false);
 180         }
 181     }
 182
 183
 184     @Override
 185     protected void onSaveInstanceState(Bundle outState) {
 186         // responsibility of restore is preferred in onCreate() before than in onRestoreInstanceState when there are Fragments involved
 187         Log_OC.d(TAG, "onSaveInstanceState() start");
 188         super.onSaveInstanceState(outState);
 189         outState.putString(UploadFilesActivity.KEY_DIRECTORY_PATH, mCurrentDir.getAbsolutePath());
 190         Log_OC.d(TAG, "onSaveInstanceState() end");
 191     }
 192
 193
 194     /**
 195      * Pushes a directory to the drop down list
 196      * @param directory to push
 197      * @throws IllegalArgumentException If the {@link File#isDirectory()} returns false.
 198      */
 199     public void pushDirname(File directory) {
 200         if(!directory.isDirectory()){
 201             throw new IllegalArgumentException("Only directories may be pushed!");
 202         }
 203         mDirectories.insert(directory.getName(), 0);
 204         mCurrentDir = directory;
 205     }
 206
 207     /**
 208      * Pops a directory name from the drop down list
 209      * @return True, unless the stack is empty
 210      */
 211     public boolean popDirname() {
 212         mDirectories.remove(mDirectories.getItem(0));
 213         return !mDirectories.isEmpty();
 214     }
 215
 216
 217     // Custom array adapter to override text colors
 218     private class CustomArrayAdapter<T> extends ArrayAdapter<T> {
 219
 220         public CustomArrayAdapter(UploadFilesActivity ctx, int view) {
 221             super(ctx, view);
 222         }
 223
 224         public View getView(int position, View convertView, ViewGroup parent) {
 225             View v = super.getView(position, convertView, parent);
 226
 227             ((TextView) v).setTextColor(getResources().getColorStateList(
 228                     android.R.color.white));
 229             return v;
 230         }
 231
 232         public View getDropDownView(int position, View convertView,
 233                 ViewGroup parent) {
 234             View v = super.getDropDownView(position, convertView, parent);
 235
 236             ((TextView) v).setTextColor(getResources().getColorStateList(
 237                     android.R.color.white));
 238
 239             return v;
 240         }
 241
 242     }
 243
 244     /**
 245      * {@inheritDoc}
 246      */
 247     @Override
 248     public void onDirectoryClick(File directory) {
 249         pushDirname(directory);
 250         ActionBar actionBar = getSupportActionBar();
 251         actionBar.setDisplayHomeAsUpEnabled(true);
 252     }
 253
 254
 255     /**
 256      * {@inheritDoc}
 257      */
 258     @Override
 259     public void onFileClick(File file) {
 260         // nothing to do
 261     }
 262
 263     /**
 264      * {@inheritDoc}
 265      */
 266     @Override
 267     public File getInitialDirectory() {
 268         return mCurrentDir;
 269     }
 270
 271
 272     /**
 273      * Performs corresponding action when user presses 'Cancel' or 'Upload' button
 274      *
 275      * TODO Make here the real request to the Upload service ; will require to receive the account and
 276      * target folder where the upload must be done in the received intent.
 277      */
 278     @Override
 279     public void onClick(View v) {
 280         if (v.getId() == R.id.upload_files_btn_cancel) {
 281             setResult(RESULT_CANCELED);
 282             finish();
 283
 284         } else if (v.getId() == R.id.upload_files_btn_upload) {
 285             new CheckAvailableSpaceTask().execute();
 286         }
 287     }
 288
 289
 290     /**
 291      * Asynchronous task checking if there is space enough to copy all the files chosen
 292      * to upload into the ownCloud local folder.
 293      *
 294      * Maybe an AsyncTask is not strictly necessary, but who really knows.
 295      *
 296      * @author David A. Velasco
 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 (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 to the ownCloud folder instead of copying
 350                 String[] args = {getString(R.string.app_name)};
 351                 ConfirmationDialogFragment dialog = ConfirmationDialogFragment.newInstance(R.string.upload_query_move_foreign_files, args, R.string.common_yes, -1, R.string.common_no);
 352                 dialog.setOnConfirmationListener(UploadFilesActivity.this);
 353                 dialog.show(getSupportFragmentManager(), QUERY_TO_MOVE_DIALOG_TAG);
 354             }
 355         }
 356     }
 357
 358     @Override
 359     public void onConfirmation(String callerTag) {
 360         Log_OC.d(TAG, "Positive button in dialog was clicked; dialog tag is " + callerTag);
 361         if (callerTag.equals(QUERY_TO_MOVE_DIALOG_TAG)) {
 362             // return the list of selected files to the caller activity (success), signaling that they should be moved to the ownCloud folder, instead of copied
 363             Intent data = new Intent();
 364             data.putExtra(EXTRA_CHOSEN_FILES, mFileListFragment.getCheckedFilePaths());
 365             setResult(RESULT_OK_AND_MOVE, data);
 366             finish();
 367         }
 368     }
 369
 370
 371     @Override
 372     public void onNeutral(String callerTag) {
 373         Log_OC.d(TAG, "Phantom neutral button in dialog was clicked; dialog tag is " + callerTag);
 374     }
 375
 376
 377     @Override
 378     public void onCancel(String callerTag) {
 379         /// nothing to do; don't finish, let the user change the selection
 380         Log_OC.d(TAG, "Negative button in dialog was clicked; dialog tag is " + callerTag);
 381     }
 382
 383
 384     @Override
 385     protected void onAccountSet(boolean stateWasRecovered) {
 386         if (getAccount() != null) {
 387             if (!mAccountOnCreation.equals(getAccount())) {
 388                 setResult(RESULT_CANCELED);
 389                 finish();
 390             }
 391
 392         } else {
 393             Log_OC.wtf(TAG, "onAccountChanged was called with NULL account associated!");
 394             setResult(RESULT_CANCELED);
 395             finish();
 396         }
 397     }
 398
 399
 400 }