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.view.MenuItem;
  38 import com.owncloud.android.ui.dialog.IndeterminateProgressDialog;
  39 import com.owncloud.android.ui.fragment.ConfirmationDialogFragment;
  40 import com.owncloud.android.ui.fragment.LocalFileListFragment;
  41 import com.owncloud.android.ui.fragment.ConfirmationDialogFragment.ConfirmationDialogFragmentListener;
  42 import com.owncloud.android.utils.FileStorageUtils;
  43
  44 import com.owncloud.android.Log_OC;
  45 import com.owncloud.android.R;
  46
  47 /**
  48  * Displays local files and let the user choose what of them wants to upload
  49  * to the current ownCloud account
  50  *
  51  * @author David A. Velasco
  52  *
  53  */
  54
  55 public class UploadFilesActivity extends FileActivity implements
  56     LocalFileListFragment.ContainerActivity, OnNavigationListener, OnClickListener, ConfirmationDialogFragmentListener {
  57
  58     private ArrayAdapter<String> mDirectories;
  59     private File mCurrentDir = null;
  60     private LocalFileListFragment mFileListFragment;
  61     private Button mCancelBtn;
  62     private Button mUploadBtn;
  63     private Account mAccountOnCreation;
  64     private DialogFragment mCurrentDialog;
  65
  66     public static final String EXTRA_CHOSEN_FILES = UploadFilesActivity.class.getCanonicalName() + ".EXTRA_CHOSEN_FILES";
  67
  68     public static final int RESULT_OK_AND_MOVE = RESULT_FIRST_USER;
  69
  70     private static final String KEY_DIRECTORY_PATH = UploadFilesActivity.class.getCanonicalName() + ".KEY_DIRECTORY_PATH";
  71     private static final String TAG = "UploadFilesActivity";
  72     private static final String WAIT_DIALOG_TAG = "WAIT";
  73     private static final String QUERY_TO_MOVE_DIALOG_TAG = "QUERY_TO_MOVE";
  74
  75
  76     @Override
  77     public void onCreate(Bundle savedInstanceState) {
  78         Log_OC.d(TAG, "onCreate() start");
  79         super.onCreate(savedInstanceState);
  80
  81         if(savedInstanceState != null) {
  82             mCurrentDir = new File(savedInstanceState.getString(UploadFilesActivity.KEY_DIRECTORY_PATH));
  83         } else {
  84             mCurrentDir = Environment.getExternalStorageDirectory();
  85         }
  86
  87         mAccountOnCreation = getAccount();
  88
  89         /// USER INTERFACE
  90
  91         // Drop-down navigation
  92         mDirectories = new CustomArrayAdapter<String>(this, R.layout.sherlock_spinner_dropdown_item);
  93         File currDir = mCurrentDir;
  94         while(currDir != null && currDir.getParentFile() != null) {
  95             mDirectories.add(currDir.getName());
  96             currDir = currDir.getParentFile();
  97         }
  98         mDirectories.add(File.separator);
  99
 100         // Inflate and set the layout view
 101         setContentView(R.layout.upload_files_layout);
 102         mFileListFragment = (LocalFileListFragment) getSupportFragmentManager().findFragmentById(R.id.local_files_list);
 103
 104
 105         // Set input controllers
 106         mCancelBtn = (Button) findViewById(R.id.upload_files_btn_cancel);
 107         mCancelBtn.setOnClickListener(this);
 108         mUploadBtn = (Button) findViewById(R.id.upload_files_btn_upload);
 109         mUploadBtn.setOnClickListener(this);
 110
 111         // Action bar setup
 112         ActionBar actionBar = getSupportActionBar();
 113         actionBar.setHomeButtonEnabled(true);   // mandatory since Android ICS, according to the official documentation
 114         actionBar.setDisplayHomeAsUpEnabled(mCurrentDir != null && mCurrentDir.getName() != null);
 115         actionBar.setDisplayShowTitleEnabled(false);
 116         actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST);
 117         actionBar.setListNavigationCallbacks(mDirectories, this);
 118
 119         // wait dialog
 120         if (mCurrentDialog != null) {
 121             mCurrentDialog.dismiss();
 122             mCurrentDialog = null;
 123         }
 124
 125         Log_OC.d(TAG, "onCreate() end");
 126     }
 127
 128
 129     @Override
 130     public boolean onOptionsItemSelected(MenuItem item) {
 131         boolean retval = true;
 132         switch (item.getItemId()) {
 133             case android.R.id.home: {
 134                 if(mCurrentDir != null && mCurrentDir.getParentFile() != null){
 135                     onBackPressed();
 136                 }
 137                 break;
 138             }
 139             default:
 140                 retval = super.onOptionsItemSelected(item);
 141         }
 142         return retval;
 143     }
 144
 145
 146     @Override
 147     public boolean onNavigationItemSelected(int itemPosition, long itemId) {
 148         int i = itemPosition;
 149         while (i-- != 0) {
 150             onBackPressed();
 151         }
 152         // the next operation triggers a new call to this method, but it's necessary to
 153         // ensure that the name exposed in the action bar is the current directory when the
 154         // user selected it in the navigation list
 155         if (itemPosition != 0)
 156             getSupportActionBar().setSelectedNavigationItem(0);
 157         return true;
 158     }
 159
 160
 161     @Override
 162     public void onBackPressed() {
 163         if (mDirectories.getCount() <= 1) {
 164             finish();
 165             return;
 166         }
 167         popDirname();
 168         mFileListFragment.onNavigateUp();
 169         mCurrentDir = mFileListFragment.getCurrentDirectory();
 170
 171         if(mCurrentDir.getParentFile() == null){
 172             ActionBar actionBar = getSupportActionBar();
 173             actionBar.setDisplayHomeAsUpEnabled(false);
 174         }
 175     }
 176
 177
 178     @Override
 179     protected void onSaveInstanceState(Bundle outState) {
 180         // responsibility of restore is preferred in onCreate() before than in onRestoreInstanceState when there are Fragments involved
 181         Log_OC.d(TAG, "onSaveInstanceState() start");
 182         super.onSaveInstanceState(outState);
 183         outState.putString(UploadFilesActivity.KEY_DIRECTORY_PATH, mCurrentDir.getAbsolutePath());
 184         Log_OC.d(TAG, "onSaveInstanceState() end");
 185     }
 186
 187
 188     /**
 189      * Pushes a directory to the drop down list
 190      * @param directory to push
 191      * @throws IllegalArgumentException If the {@link File#isDirectory()} returns false.
 192      */
 193     public void pushDirname(File directory) {
 194         if(!directory.isDirectory()){
 195             throw new IllegalArgumentException("Only directories may be pushed!");
 196         }
 197         mDirectories.insert(directory.getName(), 0);
 198         mCurrentDir = directory;
 199     }
 200
 201     /**
 202      * Pops a directory name from the drop down list
 203      * @return True, unless the stack is empty
 204      */
 205     public boolean popDirname() {
 206         mDirectories.remove(mDirectories.getItem(0));
 207         return !mDirectories.isEmpty();
 208     }
 209
 210
 211     // Custom array adapter to override text colors
 212     private class CustomArrayAdapter<T> extends ArrayAdapter<T> {
 213
 214         public CustomArrayAdapter(UploadFilesActivity ctx, int view) {
 215             super(ctx, view);
 216         }
 217
 218         public View getView(int position, View convertView, ViewGroup parent) {
 219             View v = super.getView(position, convertView, parent);
 220
 221             ((TextView) v).setTextColor(getResources().getColorStateList(
 222                     android.R.color.white));
 223             return v;
 224         }
 225
 226         public View getDropDownView(int position, View convertView,
 227                 ViewGroup parent) {
 228             View v = super.getDropDownView(position, convertView, parent);
 229
 230             ((TextView) v).setTextColor(getResources().getColorStateList(
 231                     android.R.color.white));
 232
 233             return v;
 234         }
 235
 236     }
 237
 238     /**
 239      * {@inheritDoc}
 240      */
 241     @Override
 242     public void onDirectoryClick(File directory) {
 243         pushDirname(directory);
 244         ActionBar actionBar = getSupportActionBar();
 245         actionBar.setDisplayHomeAsUpEnabled(true);
 246     }
 247
 248
 249     /**
 250      * {@inheritDoc}
 251      */
 252     @Override
 253     public void onFileClick(File file) {
 254         // nothing to do
 255     }
 256
 257     /**
 258      * {@inheritDoc}
 259      */
 260     @Override
 261     public File getInitialDirectory() {
 262         return mCurrentDir;
 263     }
 264
 265
 266     /**
 267      * Performs corresponding action when user presses 'Cancel' or 'Upload' button
 268      *
 269      * TODO Make here the real request to the Upload service ; will require to receive the account and
 270      * target folder where the upload must be done in the received intent.
 271      */
 272     @Override
 273     public void onClick(View v) {
 274         if (v.getId() == R.id.upload_files_btn_cancel) {
 275             setResult(RESULT_CANCELED);
 276             finish();
 277
 278         } else if (v.getId() == R.id.upload_files_btn_upload) {
 279             new CheckAvailableSpaceTask().execute();
 280         }
 281     }
 282
 283
 284     /**
 285      * Asynchronous task checking if there is space enough to copy all the files chosen
 286      * to upload into the ownCloud local folder.
 287      *
 288      * Maybe an AsyncTask is not strictly necessary, but who really knows.
 289      *
 290      * @author David A. Velasco
 291      */
 292     private class CheckAvailableSpaceTask extends AsyncTask<Void, Void, Boolean> {
 293
 294         /**
 295          * Updates the UI before trying the movement
 296          */
 297         @Override
 298         protected void onPreExecute () {
 299             /// progress dialog and disable 'Move' button
 300             mCurrentDialog = IndeterminateProgressDialog.newInstance(R.string.wait_a_moment, false);
 301             mCurrentDialog.show(getSupportFragmentManager(), WAIT_DIALOG_TAG);
 302         }
 303
 304
 305         /**
 306          * Checks the available space
 307          *
 308          * @return     'True' if there is space enough.
 309          */
 310         @Override
 311         protected Boolean doInBackground(Void... params) {
 312             String[] checkedFilePaths = mFileListFragment.getCheckedFilePaths();
 313             long total = 0;
 314             for (int i=0; checkedFilePaths != null && i < checkedFilePaths.length ; i++) {
 315                 String localPath = checkedFilePaths[i];
 316                 File localFile = new File(localPath);
 317                 total += localFile.length();
 318             }
 319             return (FileStorageUtils.getUsableSpace(mAccountOnCreation.name) >= total);
 320         }
 321
 322         /**
 323          * Updates the activity UI after the check of space is done.
 324          *
 325          * If there is not space enough. shows a new dialog to query the user if wants to move the files instead
 326          * of copy them.
 327          *
 328          * @param result        'True' when there is space enough to copy all the selected files.
 329          */
 330         @Override
 331         protected void onPostExecute(Boolean result) {
 332             mCurrentDialog.dismiss();
 333             mCurrentDialog = null;
 334
 335             if (result) {
 336                 // return the list of selected files (success)
 337                 Intent data = new Intent();
 338                 data.putExtra(EXTRA_CHOSEN_FILES, mFileListFragment.getCheckedFilePaths());
 339                 setResult(RESULT_OK, data);
 340                 finish();
 341
 342             } else {
 343                 // show a dialog to query the user if wants to move the selected files to the ownCloud folder instead of copying
 344                 String[] args = {getString(R.string.app_name)};
 345                 ConfirmationDialogFragment dialog = ConfirmationDialogFragment.newInstance(R.string.upload_query_move_foreign_files, args, R.string.common_yes, -1, R.string.common_no);
 346                 dialog.setOnConfirmationListener(UploadFilesActivity.this);
 347                 dialog.show(getSupportFragmentManager(), QUERY_TO_MOVE_DIALOG_TAG);
 348             }
 349         }
 350     }
 351
 352     @Override
 353     public void onConfirmation(String callerTag) {
 354         Log_OC.d(TAG, "Positive button in dialog was clicked; dialog tag is " + callerTag);
 355         if (callerTag.equals(QUERY_TO_MOVE_DIALOG_TAG)) {
 356             // return the list of selected files to the caller activity (success), signaling that they should be moved to the ownCloud folder, instead of copied
 357             Intent data = new Intent();
 358             data.putExtra(EXTRA_CHOSEN_FILES, mFileListFragment.getCheckedFilePaths());
 359             setResult(RESULT_OK_AND_MOVE, data);
 360             finish();
 361         }
 362     }
 363
 364
 365     @Override
 366     public void onNeutral(String callerTag) {
 367         Log_OC.d(TAG, "Phantom neutral button in dialog was clicked; dialog tag is " + callerTag);
 368     }
 369
 370
 371     @Override
 372     public void onCancel(String callerTag) {
 373         /// nothing to do; don't finish, let the user change the selection
 374         Log_OC.d(TAG, "Negative button in dialog was clicked; dialog tag is " + callerTag);
 375     }
 376
 377
 378     @Override
 379     protected void onAccountSet(boolean stateWasRecovered) {
 380         if (getAccount() != null) {
 381             if (!mAccountOnCreation.equals(getAccount())) {
 382                 setResult(RESULT_CANCELED);
 383                 finish();
 384             }
 385
 386         } else {
 387             Log_OC.wtf(TAG, "onAccountChanged was called with NULL account associated!");
 388             setResult(RESULT_CANCELED);
 389             finish();
 390         }
 391     }
 392
 393
 394 }