src/com/owncloud/android/ui/activity/UploadFilesActivity.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2011  Bartek Przybylski
   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 3 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.content.Intent;
  24 import android.os.Bundle;
  25 import android.os.Environment;
  26 import android.util.Log;
  27 import android.view.View;
  28 import android.view.View.OnClickListener;
  29 import android.view.ViewGroup;
  30 import android.widget.ArrayAdapter;
  31 import android.widget.Button;
  32 import android.widget.TextView;
  33
  34 import com.actionbarsherlock.app.ActionBar;
  35 import com.actionbarsherlock.app.ActionBar.OnNavigationListener;
  36 import com.actionbarsherlock.app.SherlockFragmentActivity;
  37 import com.actionbarsherlock.view.MenuItem;
  38 import com.owncloud.android.ui.fragment.LocalFileListFragment;
  39
  40 import com.owncloud.android.R;
  41
  42 /**
  43  * Displays local files and let the user choose what of them wants to upload
  44  * to the current ownCloud account
  45  *
  46  * @author David A. Velasco
  47  *
  48  */
  49
  50 public class UploadFilesActivity extends SherlockFragmentActivity implements
  51     LocalFileListFragment.ContainerActivity, OnNavigationListener, OnClickListener {
  52
  53     private ArrayAdapter<String> mDirectories;
  54     private File mCurrentDir = null;
  55     private LocalFileListFragment mFileListFragment;
  56     private Button mCancelBtn;
  57     private Button mUploadBtn;
  58
  59     public static final String EXTRA_DIRECTORY_PATH = "com.owncloud.android.Directory";
  60     public static final String EXTRA_CHOSEN_FILES = "com.owncloud.android.ChosenFiles";
  61
  62     private static final String TAG = "UploadFilesActivity";
  63
  64
  65     @Override
  66     public void onCreate(Bundle savedInstanceState) {
  67         Log.d(TAG, "onCreate() start");
  68         super.onCreate(savedInstanceState);
  69
  70         if(savedInstanceState != null) {
  71             mCurrentDir = new File(savedInstanceState.getString(UploadFilesActivity.EXTRA_DIRECTORY_PATH));
  72         } else {
  73             mCurrentDir = Environment.getExternalStorageDirectory();
  74         }
  75
  76         /// USER INTERFACE
  77
  78         // Drop-down navigation
  79         mDirectories = new CustomArrayAdapter<String>(this, R.layout.sherlock_spinner_dropdown_item);
  80         File currDir = mCurrentDir;
  81         while(currDir != null && currDir.getParentFile() != null) {
  82             mDirectories.add(currDir.getName());
  83             currDir = currDir.getParentFile();
  84         }
  85         mDirectories.add(File.separator);
  86
  87         // Inflate and set the layout view
  88         setContentView(R.layout.upload_files_layout);
  89         mFileListFragment = (LocalFileListFragment) getSupportFragmentManager().findFragmentById(R.id.local_files_list);
  90
  91         // Set input controllers
  92         mCancelBtn = (Button) findViewById(R.id.upload_files_btn_cancel);
  93         mCancelBtn.setOnClickListener(this);
  94         mUploadBtn = (Button) findViewById(R.id.upload_files_btn_upload);
  95         mUploadBtn.setOnClickListener(this);
  96
  97         // Action bar setup
  98         ActionBar actionBar = getSupportActionBar();
  99         actionBar.setHomeButtonEnabled(true);   // mandatory since Android ICS, according to the official documentation
 100         actionBar.setDisplayHomeAsUpEnabled(mCurrentDir != null && mCurrentDir.getName() != null);
 101         actionBar.setDisplayShowTitleEnabled(false);
 102         actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST);
 103         actionBar.setListNavigationCallbacks(mDirectories, this);
 104
 105         Log.d(TAG, "onCreate() end");
 106     }
 107
 108
 109     @Override
 110     public boolean onOptionsItemSelected(MenuItem item) {
 111         boolean retval = true;
 112         switch (item.getItemId()) {
 113             case android.R.id.home: {
 114                 if(mCurrentDir != null && mCurrentDir.getParentFile() != null){
 115                     onBackPressed();
 116                 }
 117                 break;
 118             }
 119             default:
 120                 retval = false;
 121         }
 122         return retval;
 123     }
 124
 125
 126     @Override
 127     public boolean onNavigationItemSelected(int itemPosition, long itemId) {
 128         int i = itemPosition;
 129         while (i-- != 0) {
 130             onBackPressed();
 131         }
 132         // the next operation triggers a new call to this method, but it's necessary to
 133         // ensure that the name exposed in the action bar is the current directory when the
 134         // user selected it in the navigation list
 135         if (itemPosition != 0)
 136             getSupportActionBar().setSelectedNavigationItem(0);
 137         return true;
 138     }
 139
 140
 141     @Override
 142     public void onBackPressed() {
 143         if (mDirectories.getCount() <= 1) {
 144             finish();
 145             return;
 146         }
 147         popDirname();
 148         mFileListFragment.onNavigateUp();
 149         mCurrentDir = mFileListFragment.getCurrentDirectory();
 150
 151         if(mCurrentDir.getParentFile() == null){
 152             ActionBar actionBar = getSupportActionBar();
 153             actionBar.setDisplayHomeAsUpEnabled(false);
 154         }
 155     }
 156
 157
 158     @Override
 159     protected void onSaveInstanceState(Bundle outState) {
 160         // responsibility of restore is preferred in onCreate() before than in onRestoreInstanceState when there are Fragments involved
 161         Log.d(TAG, "onSaveInstanceState() start");
 162         super.onSaveInstanceState(outState);
 163         outState.putString(UploadFilesActivity.EXTRA_DIRECTORY_PATH, mCurrentDir.getAbsolutePath());
 164         Log.d(TAG, "onSaveInstanceState() end");
 165     }
 166
 167     @Override
 168     protected void onResume() {
 169         Log.d(TAG, "onResume() start");
 170         super.onResume();
 171
 172         // List current directory
 173         mFileListFragment.listDirectory(mCurrentDir);
 174
 175         Log.d(TAG, "onResume() end");
 176     }
 177
 178
 179     /**
 180      * Pushes a directory to the drop down list
 181      * @param directory to push
 182      * @throws IllegalArgumentException If the {@link File#isDirectory()} returns false.
 183      */
 184     public void pushDirname(File directory) {
 185         if(!directory.isDirectory()){
 186             throw new IllegalArgumentException("Only directories may be pushed!");
 187         }
 188         mDirectories.insert(directory.getName(), 0);
 189         mCurrentDir = directory;
 190     }
 191
 192     /**
 193      * Pops a directory name from the drop down list
 194      * @return True, unless the stack is empty
 195      */
 196     public boolean popDirname() {
 197         mDirectories.remove(mDirectories.getItem(0));
 198         return !mDirectories.isEmpty();
 199     }
 200
 201
 202     // Custom array adapter to override text colors
 203     private class CustomArrayAdapter<T> extends ArrayAdapter<T> {
 204
 205         public CustomArrayAdapter(UploadFilesActivity ctx, int view) {
 206             super(ctx, view);
 207         }
 208
 209         public View getView(int position, View convertView, ViewGroup parent) {
 210             View v = super.getView(position, convertView, parent);
 211
 212             ((TextView) v).setTextColor(getResources().getColorStateList(
 213                     android.R.color.white));
 214             return v;
 215         }
 216
 217         public View getDropDownView(int position, View convertView,
 218                 ViewGroup parent) {
 219             View v = super.getDropDownView(position, convertView, parent);
 220
 221             ((TextView) v).setTextColor(getResources().getColorStateList(
 222                     android.R.color.white));
 223
 224             return v;
 225         }
 226
 227     }
 228
 229     /**
 230      * {@inheritDoc}
 231      */
 232     @Override
 233     public void onDirectoryClick(File directory) {
 234         pushDirname(directory);
 235         ActionBar actionBar = getSupportActionBar();
 236         actionBar.setDisplayHomeAsUpEnabled(true);
 237     }
 238
 239
 240     /**
 241      * {@inheritDoc}
 242      */
 243     @Override
 244     public void onFileClick(File file) {
 245         // nothing to do
 246     }
 247
 248
 249     /**
 250      * Performs corresponding action when user presses 'Cancel' or 'Upload' button
 251      */
 252     @Override
 253     public void onClick(View v) {
 254         if (v.getId() == R.id.upload_files_btn_cancel) {
 255             setResult(RESULT_CANCELED);
 256             finish();
 257
 258         } else if (v.getId() == R.id.upload_files_btn_upload) {
 259             Intent data = new Intent();
 260             data.putExtra(EXTRA_CHOSEN_FILES, mFileListFragment.getCheckedFilePaths());
 261             setResult(RESULT_OK, data);
 262             finish();
 263         }
 264     }
 265
 266 }