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 as published by
   6  *   the Free Software Foundation, either version 2 of the License, or
   7  *   (at your option) any later version.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18
  19 package com.owncloud.android.ui.activity;
  20
  21 import java.io.File;
  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.util.Log;
  30 import android.view.View;
  31 import android.view.View.OnClickListener;
  32 import android.view.ViewGroup;
  33 import android.widget.ArrayAdapter;
  34 import android.widget.Button;
  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.ui.dialog.IndeterminateProgressDialog;
  42 import com.owncloud.android.ui.fragment.ConfirmationDialogFragment;
  43 import com.owncloud.android.ui.fragment.LocalFileListFragment;
  44 import com.owncloud.android.ui.fragment.ConfirmationDialogFragment.ConfirmationDialogFragmentListener;
  45 import com.owncloud.android.utils.FileStorageUtils;
  46
  47 import com.owncloud.android.Log_OC;
  48 import com.owncloud.android.R;
  49
  50 /**
  51  * Displays local files and let the user choose what of them wants to upload
  52  * to the current ownCloud account
  53  *
  54  * @author David A. Velasco
  55  *
  56  */
  57
  58 public class UploadFilesActivity extends SherlockFragmentActivity implements
  59     LocalFileListFragment.ContainerActivity, OnNavigationListener, OnClickListener, ConfirmationDialogFragmentListener {
  60
  61     private ArrayAdapter<String> mDirectories;
  62     private File mCurrentDir = null;
  63     private LocalFileListFragment mFileListFragment;
  64     private Button mCancelBtn;
  65     private Button mUploadBtn;
  66     private Account mAccount;
  67     private DialogFragment mCurrentDialog;
  68
  69     public static final String EXTRA_ACCOUNT = UploadFilesActivity.class.getCanonicalName() + ".EXTRA_ACCOUNT";
  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
  80     @Override
  81     public void onCreate(Bundle savedInstanceState) {
  82         Log_OC.d(TAG, "onCreate() start");
  83         super.onCreate(savedInstanceState);
  84
  85         if(savedInstanceState != null) {
  86             mCurrentDir = new File(savedInstanceState.getString(UploadFilesActivity.KEY_DIRECTORY_PATH));
  87         } else {
  88             mCurrentDir = Environment.getExternalStorageDirectory();
  89         }
  90
  91         mAccount = getIntent().getParcelableExtra(EXTRA_ACCOUNT);
  92
  93         /// USER INTERFACE
  94
  95         // Drop-down navigation
  96         mDirectories = new CustomArrayAdapter<String>(this, R.layout.sherlock_spinner_dropdown_item);
  97         File currDir = mCurrentDir;
  98         while(currDir != null && currDir.getParentFile() != null) {
  99             mDirectories.add(currDir.getName());
 100             currDir = currDir.getParentFile();
 101         }
 102         mDirectories.add(File.separator);
 103
 104         // Inflate and set the layout view
 105         setContentView(R.layout.upload_files_layout);
 106         mFileListFragment = (LocalFileListFragment) getSupportFragmentManager().findFragmentById(R.id.local_files_list);
 107
 108
 109         // Set input controllers
 110         mCancelBtn = (Button) findViewById(R.id.upload_files_btn_cancel);
 111         mCancelBtn.setOnClickListener(this);
 112         mUploadBtn = (Button) findViewById(R.id.upload_files_btn_upload);
 113         mUploadBtn.setOnClickListener(this);
 114
 115         // Action bar setup
 116         ActionBar actionBar = getSupportActionBar();
 117         actionBar.setHomeButtonEnabled(true);   // mandatory since Android ICS, according to the official documentation
 118         actionBar.setDisplayHomeAsUpEnabled(mCurrentDir != null && mCurrentDir.getName() != null);
 119         actionBar.setDisplayShowTitleEnabled(false);
 120         actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST);
 121         actionBar.setListNavigationCallbacks(mDirectories, this);
 122
 123         // wait dialog
 124         if (mCurrentDialog != null) {
 125             mCurrentDialog.dismiss();
 126             mCurrentDialog = null;
 127         }
 128
 129         Log_OC.d(TAG, "onCreate() end");
 130     }
 131
 132
 133     @Override
 134     public boolean onOptionsItemSelected(MenuItem item) {
 135         boolean retval = true;
 136         switch (item.getItemId()) {
 137             case android.R.id.home: {
 138                 if(mCurrentDir != null && mCurrentDir.getParentFile() != null){
 139                     onBackPressed();
 140                 }
 141                 break;
 142             }
 143             default:
 144                 retval = super.onOptionsItemSelected(item);
 145         }
 146         return retval;
 147     }
 148
 149
 150     @Override
 151     public boolean onNavigationItemSelected(int itemPosition, long itemId) {
 152         int i = itemPosition;
 153         while (i-- != 0) {
 154             onBackPressed();
 155         }
 156         // the next operation triggers a new call to this method, but it's necessary to
 157         // ensure that the name exposed in the action bar is the current directory when the
 158         // user selected it in the navigation list
 159         if (itemPosition != 0)
 160             getSupportActionBar().setSelectedNavigationItem(0);
 161         return true;
 162     }
 163
 164
 165     @Override
 166     public void onBackPressed() {
 167         if (mDirectories.getCount() <= 1) {
 168             finish();
 169             return;
 170         }
 171         popDirname();
 172         mFileListFragment.onNavigateUp();
 173         mCurrentDir = mFileListFragment.getCurrentDirectory();
 174
 175         if(mCurrentDir.getParentFile() == null){
 176             ActionBar actionBar = getSupportActionBar();
 177             actionBar.setDisplayHomeAsUpEnabled(false);
 178         }
 179     }
 180
 181
 182     @Override
 183     protected void onSaveInstanceState(Bundle outState) {
 184         // responsibility of restore is preferred in onCreate() before than in onRestoreInstanceState when there are Fragments involved
 185         Log_OC.d(TAG, "onSaveInstanceState() start");
 186         super.onSaveInstanceState(outState);
 187         outState.putString(UploadFilesActivity.KEY_DIRECTORY_PATH, mCurrentDir.getAbsolutePath());
 188         Log_OC.d(TAG, "onSaveInstanceState() end");
 189     }
 190
 191
 192     /**
 193      * Pushes a directory to the drop down list
 194      * @param directory to push
 195      * @throws IllegalArgumentException If the {@link File#isDirectory()} returns false.
 196      */
 197     public void pushDirname(File directory) {
 198         if(!directory.isDirectory()){
 199             throw new IllegalArgumentException("Only directories may be pushed!");
 200         }
 201         mDirectories.insert(directory.getName(), 0);
 202         mCurrentDir = directory;
 203     }
 204
 205     /**
 206      * Pops a directory name from the drop down list
 207      * @return True, unless the stack is empty
 208      */
 209     public boolean popDirname() {
 210         mDirectories.remove(mDirectories.getItem(0));
 211         return !mDirectories.isEmpty();
 212     }
 213
 214
 215     // Custom array adapter to override text colors
 216     private class CustomArrayAdapter<T> extends ArrayAdapter<T> {
 217
 218         public CustomArrayAdapter(UploadFilesActivity ctx, int view) {
 219             super(ctx, view);
 220         }
 221
 222         public View getView(int position, View convertView, ViewGroup parent) {
 223             View v = super.getView(position, convertView, parent);
 224
 225             ((TextView) v).setTextColor(getResources().getColorStateList(
 226                     android.R.color.white));
 227             return v;
 228         }
 229
 230         public View getDropDownView(int position, View convertView,
 231                 ViewGroup parent) {
 232             View v = super.getDropDownView(position, convertView, parent);
 233
 234             ((TextView) v).setTextColor(getResources().getColorStateList(
 235                     android.R.color.white));
 236
 237             return v;
 238         }
 239
 240     }
 241
 242     /**
 243      * {@inheritDoc}
 244      */
 245     @Override
 246     public void onDirectoryClick(File directory) {
 247         pushDirname(directory);
 248         ActionBar actionBar = getSupportActionBar();
 249         actionBar.setDisplayHomeAsUpEnabled(true);
 250     }
 251
 252
 253     /**
 254      * {@inheritDoc}
 255      */
 256     @Override
 257     public void onFileClick(File file) {
 258         // nothing to do
 259     }
 260
 261     /**
 262      * {@inheritDoc}
 263      */
 264     @Override
 265     public File getInitialDirectory() {
 266         return mCurrentDir;
 267     }
 268
 269
 270     /**
 271      * Performs corresponding action when user presses 'Cancel' or 'Upload' button
 272      *
 273      * TODO Make here the real request to the Upload service ; will require to receive the account and
 274      * target folder where the upload must be done in the received intent.
 275      */
 276     @Override
 277     public void onClick(View v) {
 278         if (v.getId() == R.id.upload_files_btn_cancel) {
 279             setResult(RESULT_CANCELED);
 280             finish();
 281
 282         } else if (v.getId() == R.id.upload_files_btn_upload) {
 283             new CheckAvailableSpaceTask().execute();
 284         }
 285     }
 286
 287
 288     /**
 289      * Asynchronous task checking if there is space enough to copy all the files chosen
 290      * to upload into the ownCloud local folder.
 291      *
 292      * Maybe an AsyncTask is not strictly necessary, but who really knows.
 293      *
 294      * @author David A. Velasco
 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 (FileStorageUtils.getUsableSpace(mAccount.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 to the ownCloud folder instead of copying
 348                 String[] args = {getString(R.string.app_name)};
 349                 ConfirmationDialogFragment dialog = ConfirmationDialogFragment.newInstance(R.string.upload_query_move_foreign_files, args, R.string.common_yes, -1, R.string.common_no);
 350                 dialog.setOnConfirmationListener(UploadFilesActivity.this);
 351                 mCurrentDialog = dialog;
 352                 mCurrentDialog.show(getSupportFragmentManager(), QUERY_TO_MOVE_DIALOG_TAG);
 353             }
 354         }
 355     }
 356
 357     @Override
 358     public void onConfirmation(String callerTag) {
 359         Log_OC.d(TAG, "Positive button in dialog was clicked; dialog tag is " + callerTag);
 360         if (callerTag.equals(QUERY_TO_MOVE_DIALOG_TAG)) {
 361             // return the list of selected files to the caller activity (success), signaling that they should be moved to the ownCloud folder, instead of copied
 362             Intent data = new Intent();
 363             data.putExtra(EXTRA_CHOSEN_FILES, mFileListFragment.getCheckedFilePaths());
 364             setResult(RESULT_OK_AND_MOVE, data);
 365             finish();
 366         }
 367         mCurrentDialog.dismiss();
 368         mCurrentDialog = null;
 369     }
 370
 371
 372     @Override
 373     public void onNeutral(String callerTag) {
 374         Log_OC.d(TAG, "Phantom neutral button in dialog was clicked; dialog tag is " + callerTag);
 375         mCurrentDialog.dismiss();
 376         mCurrentDialog = null;
 377     }
 378
 379
 380     @Override
 381     public void onCancel(String callerTag) {
 382         /// nothing to do; don't finish, let the user change the selection
 383         Log_OC.d(TAG, "Negative button in dialog was clicked; dialog tag is " + callerTag);
 384         mCurrentDialog.dismiss();
 385         mCurrentDialog = null;
 386     }
 387
 388
 389 }