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 java.io.File;
  24
  25 import android.accounts.Account;
  26 import android.content.Intent;
  27 import android.os.AsyncTask;
  28 import android.os.Bundle;
  29 import android.os.Environment;
  30 import android.support.v4.app.DialogFragment;
  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.actionbarsherlock.app.ActionBar;
  39 import com.actionbarsherlock.app.ActionBar.OnNavigationListener;
  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
  56 public class UploadFilesActivity extends FileActivity implements
  57     LocalFileListFragment.ContainerActivity, OnNavigationListener, OnClickListener, ConfirmationDialogFragmentListener {
  58
  59     private ArrayAdapter<String> mDirectories;
  60     private File mCurrentDir = null;
  61     private LocalFileListFragment mFileListFragment;
  62     private Button mCancelBtn;
  63     private Button mUploadBtn;
  64     private Account mAccountOnCreation;
  65     private DialogFragment mCurrentDialog;
  66
  67     public static final String EXTRA_CHOSEN_FILES =
  68             UploadFilesActivity.class.getCanonicalName() + ".EXTRA_CHOSEN_FILES";
  69
  70     public static final int RESULT_OK_AND_MOVE = RESULT_FIRST_USER;
  71
  72     private static final String KEY_DIRECTORY_PATH =
  73             UploadFilesActivity.class.getCanonicalName() + ".KEY_DIRECTORY_PATH";
  74     private static final String TAG = "UploadFilesActivity";
  75     private static final String WAIT_DIALOG_TAG = "WAIT";
  76     private static final String QUERY_TO_MOVE_DIALOG_TAG = "QUERY_TO_MOVE";
  77
  78
  79     @Override
  80     public void onCreate(Bundle savedInstanceState) {
  81         Log_OC.d(TAG, "onCreate() start");
  82         super.onCreate(savedInstanceState);
  83
  84         if(savedInstanceState != null) {
  85             mCurrentDir = new File(savedInstanceState.getString(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, R.layout.sherlock_spinner_dropdown_item);
  96         File currDir = mCurrentDir;
  97         while(currDir != null && currDir.getParentFile() != null) {
  98             mDirectories.add(currDir.getName());
  99             currDir = currDir.getParentFile();
 100         }
 101         mDirectories.add(File.separator);
 102
 103         // Inflate and set the layout view
 104         setContentView(R.layout.upload_files_layout);
 105         mFileListFragment = (LocalFileListFragment) getSupportFragmentManager().findFragmentById(R.id.local_files_list);
 106
 107
 108         // Set input controllers
 109         mCancelBtn = (Button) findViewById(R.id.upload_files_btn_cancel);
 110         mCancelBtn.setOnClickListener(this);
 111         mUploadBtn = (Button) findViewById(R.id.upload_files_btn_upload);
 112         mUploadBtn.setOnClickListener(this);
 113
 114
 115         // Action bar setup
 116         ActionBar actionBar = getSupportActionBar();
 117         actionBar.setIcon(DisplayUtils.getSeasonalIconId());
 118         actionBar.setHomeButtonEnabled(true);   // mandatory since Android ICS, according to the official documentation
 119         actionBar.setDisplayHomeAsUpEnabled(mCurrentDir != null && mCurrentDir.getName() != null);
 120         actionBar.setDisplayShowTitleEnabled(false);
 121         actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST);
 122         actionBar.setListNavigationCallbacks(mDirectories, this);
 123
 124         // wait dialog
 125         if (mCurrentDialog != null) {
 126             mCurrentDialog.dismiss();
 127             mCurrentDialog = null;
 128         }
 129
 130         Log_OC.d(TAG, "onCreate() end");
 131     }
 132
 133
 134     @Override
 135     public boolean onOptionsItemSelected(MenuItem item) {
 136         boolean retval = true;
 137         switch (item.getItemId()) {
 138             case android.R.id.home: {
 139                 if(mCurrentDir != null && mCurrentDir.getParentFile() != null){
 140                     onBackPressed();
 141                 }
 142                 break;
 143             }
 144             default:
 145                 retval = super.onOptionsItemSelected(item);
 146         }
 147         return retval;
 148     }
 149
 150
 151     @Override
 152     public boolean onNavigationItemSelected(int itemPosition, long itemId) {
 153         int i = itemPosition;
 154         while (i-- != 0) {
 155             onBackPressed();
 156         }
 157         // the next operation triggers a new call to this method, but it's necessary to
 158         // ensure that the name exposed in the action bar is the current directory when the
 159         // user selected it in the navigation list
 160         if (itemPosition != 0)
 161             getSupportActionBar().setSelectedNavigationItem(0);
 162         return true;
 163     }
 164
 165
 166     @Override
 167     public void onBackPressed() {
 168         if (mDirectories.getCount() <= 1) {
 169             finish();
 170             return;
 171         }
 172         popDirname();
 173         mFileListFragment.onNavigateUp();
 174         mCurrentDir = mFileListFragment.getCurrentDirectory();
 175
 176         if(mCurrentDir.getParentFile() == null){
 177             ActionBar actionBar = getSupportActionBar();
 178             actionBar.setDisplayHomeAsUpEnabled(false);
 179         }
 180     }
 181
 182
 183     @Override
 184     protected void onSaveInstanceState(Bundle outState) {
 185         // responsibility of restore is preferred in onCreate() before than in
 186         // 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     private class CheckAvailableSpaceTask extends AsyncTask<Void, Void, Boolean> {
 297
 298         /**
 299          * Updates the UI before trying the movement
 300          */
 301         @Override
 302         protected void onPreExecute () {
 303             /// progress dialog and disable 'Move' button
 304             mCurrentDialog = IndeterminateProgressDialog.newInstance(R.string.wait_a_moment, false);
 305             mCurrentDialog.show(getSupportFragmentManager(), WAIT_DIALOG_TAG);
 306         }
 307
 308
 309         /**
 310          * Checks the available space
 311          *
 312          * @return     'True' if there is space enough.
 313          */
 314         @Override
 315         protected Boolean doInBackground(Void... params) {
 316             String[] checkedFilePaths = mFileListFragment.getCheckedFilePaths();
 317             long total = 0;
 318             for (int i=0; checkedFilePaths != null && i < checkedFilePaths.length ; i++) {
 319                 String localPath = checkedFilePaths[i];
 320                 File localFile = new File(localPath);
 321                 total += localFile.length();
 322             }
 323             return (new Boolean(FileStorageUtils.getUsableSpace(mAccountOnCreation.name) >= total));
 324         }
 325
 326         /**
 327          * Updates the activity UI after the check of space is done.
 328          *
 329          * If there is not space enough. shows a new dialog to query the user if wants to move the files instead
 330          * of copy them.
 331          *
 332          * @param result        'True' when there is space enough to copy all the selected files.
 333          */
 334         @Override
 335         protected void onPostExecute(Boolean result) {
 336             mCurrentDialog.dismiss();
 337             mCurrentDialog = null;
 338
 339             if (result) {
 340                 // return the list of selected files (success)
 341                 Intent data = new Intent();
 342                 data.putExtra(EXTRA_CHOSEN_FILES, mFileListFragment.getCheckedFilePaths());
 343                 setResult(RESULT_OK, data);
 344                 finish();
 345
 346             } else {
 347                 // show a dialog to query the user if wants to move the selected files
 348                 // to the ownCloud folder instead of copying
 349                 String[] args = {getString(R.string.app_name)};
 350                 ConfirmationDialogFragment dialog = ConfirmationDialogFragment.newInstance(
 351                     R.string.upload_query_move_foreign_files, args, R.string.common_yes, -1, R.string.common_no
 352                 );
 353                 dialog.setOnConfirmationListener(UploadFilesActivity.this);
 354                 dialog.show(getSupportFragmentManager(), QUERY_TO_MOVE_DIALOG_TAG);
 355             }
 356         }
 357     }
 358
 359     @Override
 360     public void onConfirmation(String callerTag) {
 361         Log_OC.d(TAG, "Positive button in dialog was clicked; dialog tag is " + callerTag);
 362         if (callerTag.equals(QUERY_TO_MOVE_DIALOG_TAG)) {
 363             // return the list of selected files to the caller activity (success),
 364             // signaling that they should be moved to the ownCloud folder, instead of copied
 365             Intent data = new Intent();
 366             data.putExtra(EXTRA_CHOSEN_FILES, mFileListFragment.getCheckedFilePaths());
 367             setResult(RESULT_OK_AND_MOVE, data);
 368             finish();
 369         }
 370     }
 371
 372
 373     @Override
 374     public void onNeutral(String callerTag) {
 375         Log_OC.d(TAG, "Phantom neutral button in dialog was clicked; dialog tag is " + callerTag);
 376     }
 377
 378
 379     @Override
 380     public void onCancel(String callerTag) {
 381         /// nothing to do; don't finish, let the user change the selection
 382         Log_OC.d(TAG, "Negative button in dialog was clicked; dialog tag is " + callerTag);
 383     }
 384
 385
 386     @Override
 387     protected void onAccountSet(boolean stateWasRecovered) {
 388         super.onAccountSet(stateWasRecovered);
 389         if (getAccount() != null) {
 390             if (!mAccountOnCreation.equals(getAccount())) {
 391                 setResult(RESULT_CANCELED);
 392                 finish();
 393             }
 394
 395         } else {
 396             setResult(RESULT_CANCELED);
 397             finish();
 398         }
 399     }
 400
 401
 402 }