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     protected LocalFileListFragment mFileListFragment;
  61     protected Button mCancelBtn;
  62     protected Button mUploadBtn;
  63     protected Account mAccountOnCreation;
  64     protected 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     public 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(KEY_DIRECTORY_PATH));
  85         } else if (getIntent() != null && getIntent().hasExtra(KEY_DIRECTORY_PATH)) {
  86             mCurrentDir = new File(getIntent().getStringExtra(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.setHomeButtonEnabled(true);   // mandatory since Android ICS, according to the
 121                                                 // 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         // wait dialog
 128         if (mCurrentDialog != null) {
 129             mCurrentDialog.dismiss();
 130             mCurrentDialog = null;
 131         }
 132
 133         Log_OC.d(TAG, "onCreate() end");
 134     }
 135
 136
 137     @Override
 138     public boolean onOptionsItemSelected(MenuItem item) {
 139         boolean retval = true;
 140         switch (item.getItemId()) {
 141             case android.R.id.home: {
 142                 if(mCurrentDir != null && mCurrentDir.getParentFile() != null){
 143                     onBackPressed();
 144                 }
 145                 break;
 146             }
 147             default:
 148                 retval = super.onOptionsItemSelected(item);
 149         }
 150         return retval;
 151     }
 152
 153
 154     @Override
 155     public boolean onNavigationItemSelected(int itemPosition, long itemId) {
 156         int i = itemPosition;
 157         while (i-- != 0) {
 158             onBackPressed();
 159         }
 160         // the next operation triggers a new call to this method, but it's necessary to
 161         // ensure that the name exposed in the action bar is the current directory when the
 162         // user selected it in the navigation list
 163         if (itemPosition != 0)
 164             getSupportActionBar().setSelectedNavigationItem(0);
 165         return true;
 166     }
 167
 168
 169     @Override
 170     public void onBackPressed() {
 171         if (mDirectories.getCount() <= 1) {
 172             finish();
 173             return;
 174         }
 175         popDirname();
 176         mFileListFragment.onNavigateUp();
 177         mCurrentDir = mFileListFragment.getCurrentDirectory();
 178
 179         if(mCurrentDir.getParentFile() == null){
 180             ActionBar actionBar = getSupportActionBar();
 181             actionBar.setDisplayHomeAsUpEnabled(false);
 182         }
 183     }
 184
 185
 186     @Override
 187     protected void onSaveInstanceState(Bundle outState) {
 188         // responsibility of restore is preferred in onCreate() before than in
 189         // onRestoreInstanceState when there are Fragments involved
 190         Log_OC.d(TAG, "onSaveInstanceState() start");
 191         super.onSaveInstanceState(outState);
 192         outState.putString(UploadFilesActivity.KEY_DIRECTORY_PATH, mCurrentDir.getAbsolutePath());
 193         Log_OC.d(TAG, "onSaveInstanceState() end");
 194     }
 195
 196
 197     /**
 198      * Pushes a directory to the drop down list
 199      * @param directory to push
 200      * @throws IllegalArgumentException If the {@link File#isDirectory()} returns false.
 201      */
 202     public void pushDirname(File directory) {
 203         if(!directory.isDirectory()){
 204             throw new IllegalArgumentException("Only directories may be pushed!");
 205         }
 206         mDirectories.insert(directory.getName(), 0);
 207         mCurrentDir = directory;
 208     }
 209
 210     /**
 211      * Pops a directory name from the drop down list
 212      * @return True, unless the stack is empty
 213      */
 214     public boolean popDirname() {
 215         mDirectories.remove(mDirectories.getItem(0));
 216         return !mDirectories.isEmpty();
 217     }
 218
 219
 220     // Custom array adapter to override text colors
 221     private class CustomArrayAdapter<T> extends ArrayAdapter<T> {
 222
 223         public CustomArrayAdapter(UploadFilesActivity ctx, int view) {
 224             super(ctx, view);
 225         }
 226
 227         public View getView(int position, View convertView, ViewGroup parent) {
 228             View v = super.getView(position, convertView, parent);
 229
 230             ((TextView) v).setTextColor(getResources().getColorStateList(
 231                     android.R.color.white));
 232             return v;
 233         }
 234
 235         public View getDropDownView(int position, View convertView,
 236                 ViewGroup parent) {
 237             View v = super.getDropDownView(position, convertView, parent);
 238
 239             ((TextView) v).setTextColor(getResources().getColorStateList(
 240                     android.R.color.white));
 241
 242             return v;
 243         }
 244
 245     }
 246
 247     /**
 248      * {@inheritDoc}
 249      */
 250     @Override
 251     public void onDirectoryClick(File directory) {
 252         pushDirname(directory);
 253         ActionBar actionBar = getSupportActionBar();
 254         actionBar.setDisplayHomeAsUpEnabled(true);
 255     }
 256
 257
 258     /**
 259      * {@inheritDoc}
 260      */
 261     @Override
 262     public void onFileClick(File file) {
 263         // nothing to do
 264     }
 265
 266     /**
 267      * {@inheritDoc}
 268      */
 269     @Override
 270     public File getInitialDirectory() {
 271         return mCurrentDir;
 272     }
 273
 274
 275     /**
 276      * Performs corresponding action when user presses 'Cancel' or 'Upload' button
 277      *
 278      * TODO Make here the real request to the Upload service ; will require to receive the account and
 279      * target folder where the upload must be done in the received intent.
 280      */
 281     @Override
 282     public void onClick(View v) {
 283         if (v.getId() == R.id.upload_files_btn_cancel) {
 284             setResult(RESULT_CANCELED);
 285             finish();
 286
 287         } else if (v.getId() == R.id.upload_files_btn_upload) {
 288             new CheckAvailableSpaceTask().execute();
 289         }
 290     }
 291
 292
 293     /**
 294      * Asynchronous task checking if there is space enough to copy all the files chosen
 295      * to upload into the ownCloud local folder.
 296      *
 297      * Maybe an AsyncTask is not strictly necessary, but who really knows.
 298      */
 299     private class CheckAvailableSpaceTask extends AsyncTask<Void, Void, Boolean> {
 300
 301         /**
 302          * Updates the UI before trying the movement
 303          */
 304         @Override
 305         protected void onPreExecute () {
 306             /// progress dialog and disable 'Move' button
 307             mCurrentDialog = IndeterminateProgressDialog.newInstance(R.string.wait_a_moment, false);
 308             mCurrentDialog.show(getSupportFragmentManager(), WAIT_DIALOG_TAG);
 309         }
 310
 311
 312         /**
 313          * Checks the available space
 314          *
 315          * @return     'True' if there is space enough.
 316          */
 317         @Override
 318         protected Boolean doInBackground(Void... params) {
 319             String[] checkedFilePaths = mFileListFragment.getCheckedFilePaths();
 320             long total = 0;
 321             for (int i=0; checkedFilePaths != null && i < checkedFilePaths.length ; i++) {
 322                 String localPath = checkedFilePaths[i];
 323                 File localFile = new File(localPath);
 324                 total += localFile.length();
 325             }
 326             return (new Boolean(FileStorageUtils.getUsableSpace(mAccountOnCreation.name) >= total));
 327         }
 328
 329         /**
 330          * Updates the activity UI after the check of space is done.
 331          *
 332          * If there is not space enough. shows a new dialog to query the user if wants to move the files instead
 333          * of copy them.
 334          *
 335          * @param result        'True' when there is space enough to copy all the selected files.
 336          */
 337         @Override
 338         protected void onPostExecute(Boolean result) {
 339             mCurrentDialog.dismiss();
 340             mCurrentDialog = null;
 341
 342             if (result) {
 343                 // return the list of selected files (success)
 344                 Intent data = new Intent();
 345                 data.putExtra(EXTRA_CHOSEN_FILES, mFileListFragment.getCheckedFilePaths());
 346                 setResult(RESULT_OK, data);
 347                 finish();
 348
 349             } else {
 350                 // show a dialog to query the user if wants to move the selected files
 351                 // to the ownCloud folder instead of copying
 352                 String[] args = {getString(R.string.app_name)};
 353                 ConfirmationDialogFragment dialog = ConfirmationDialogFragment.newInstance(
 354                     R.string.upload_query_move_foreign_files, args, R.string.common_yes, -1, R.string.common_no
 355                 );
 356                 dialog.setOnConfirmationListener(UploadFilesActivity.this);
 357                 dialog.show(getSupportFragmentManager(), QUERY_TO_MOVE_DIALOG_TAG);
 358             }
 359         }
 360     }
 361
 362     @Override
 363     public void onConfirmation(String callerTag) {
 364         Log_OC.d(TAG, "Positive button in dialog was clicked; dialog tag is " + callerTag);
 365         if (callerTag.equals(QUERY_TO_MOVE_DIALOG_TAG)) {
 366             // return the list of selected files to the caller activity (success),
 367             // signaling that they should be moved to the ownCloud folder, instead of copied
 368             Intent data = new Intent();
 369             data.putExtra(EXTRA_CHOSEN_FILES, mFileListFragment.getCheckedFilePaths());
 370             setResult(RESULT_OK_AND_MOVE, data);
 371             finish();
 372         }
 373     }
 374
 375
 376     @Override
 377     public void onNeutral(String callerTag) {
 378         Log_OC.d(TAG, "Phantom neutral button in dialog was clicked; dialog tag is " + callerTag);
 379     }
 380
 381
 382     @Override
 383     public void onCancel(String callerTag) {
 384         /// nothing to do; don't finish, let the user change the selection
 385         Log_OC.d(TAG, "Negative button in dialog was clicked; dialog tag is " + callerTag);
 386     }
 387
 388
 389     @Override
 390     protected void onAccountSet(boolean stateWasRecovered) {
 391         super.onAccountSet(stateWasRecovered);
 392         if (getAccount() != null) {
 393             if (!mAccountOnCreation.equals(getAccount())) {
 394                 setResult(RESULT_CANCELED);
 395                 finish();
 396             }
 397
 398         } else {
 399             setResult(RESULT_CANCELED);
 400             finish();
 401         }
 402     }
 403
 404
 405 }