src/eu/alefzero/owncloud/OwnCloudMainScreen.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 eu.alefzero.owncloud;
  20
  21 import java.util.Stack;
  22
  23 import android.accounts.Account;
  24 import android.accounts.AccountManager;
  25 import android.app.AlertDialog;
  26 import android.app.Dialog;
  27 import android.app.ListActivity;
  28 import android.content.DialogInterface;
  29 import android.content.Intent;
  30 import android.content.DialogInterface.OnCancelListener;
  31 import android.content.res.Configuration;
  32 import android.database.Cursor;
  33 import android.graphics.Bitmap;
  34 import android.graphics.BitmapFactory;
  35 import android.graphics.Matrix;
  36 import android.net.Uri;
  37 import android.os.Bundle;
  38 import android.text.TextUtils;
  39 import android.view.Menu;
  40 import android.view.MenuInflater;
  41 import android.view.MenuItem;
  42 import android.view.View;
  43 import android.view.Window;
  44 import android.widget.ImageView;
  45 import android.widget.ListView;
  46 import android.widget.TextView;
  47 import eu.alefzero.owncloud.authenticator.AccountAuthenticator;
  48 import eu.alefzero.owncloud.db.ProviderMeta.ProviderTableMeta;
  49
  50 public class OwnCloudMainScreen extends ListActivity {
  51   private DbHandler mDBHandler;
  52   private Stack<String> mParents;
  53   private Account mAccount;
  54   private Cursor mCursor;
  55   private boolean mIsDisplayingFile;
  56
  57   private static final int DIALOG_CHOOSE_ACCOUNT = 0;
  58
  59   @Override
  60   public void onCreate(Bundle savedInstanceState) {
  61     super.onCreate(savedInstanceState);
  62
  63     mParents = new Stack<String>();
  64     mIsDisplayingFile = false;
  65     mDBHandler = new DbHandler(getBaseContext());
  66     requestWindowFeature(Window.FEATURE_NO_TITLE);
  67     setContentView(R.layout.main);
  68
  69     AccountManager accMan = AccountManager.get(this);
  70     Account[] accounts = accMan.getAccountsByType(AccountAuthenticator.ACCOUNT_TYPE);
  71
  72     if (accounts.length == 0) {
  73       // using string value since in API7 this constatn is not defined
  74       // in API7 < this constatant is defined in Settings.ADD_ACCOUNT_SETTINGS
  75       // and Settings.EXTRA_AUTHORITIES
  76       Intent intent = new Intent("android.settings.ADD_ACCOUNT_SETTINGS");
  77       intent.putExtra("authorities", new String[] {AccountAuthenticator.AUTH_TOKEN_TYPE});
  78       startActivity(intent);
  79     } else if (accounts.length > 1) {
  80       showDialog(DIALOG_CHOOSE_ACCOUNT);
  81     } else {
  82       mAccount = accounts[0];
  83       populateFileList();
  84     }
  85   }
  86
  87   @Override
  88   public boolean onOptionsItemSelected(MenuItem item) {
  89     switch (item.getItemId()) {
  90       case R.id.settingsItem :
  91         Intent i = new Intent(this, Preferences.class);
  92         startActivity(i);
  93         break;
  94     }
  95     return true;
  96   }
  97
  98   @Override
  99   protected Dialog onCreateDialog(int id) {
 100     switch (id) {
 101       case DIALOG_CHOOSE_ACCOUNT:
 102         return createChooseAccountDialog();
 103       default:
 104         throw new IllegalArgumentException("Unknown dialog id: " + id);
 105     }
 106   }
 107
 108   @Override
 109   public boolean onCreateOptionsMenu(Menu menu) {
 110     MenuInflater inflater = getMenuInflater();
 111     inflater.inflate(R.menu.menu, menu);
 112     return true;
 113   }
 114
 115   @Override
 116   protected void onDestroy() {
 117     mDBHandler.close();
 118     super.onDestroy();
 119   }
 120
 121   private Dialog createChooseAccountDialog() {
 122     final AccountManager accMan = AccountManager.get(this);
 123     CharSequence[] items = new CharSequence[accMan.getAccountsByType(AccountAuthenticator.ACCOUNT_TYPE).length];
 124     int i = 0;
 125     for (Account a : accMan.getAccountsByType(AccountAuthenticator.ACCOUNT_TYPE)) {
 126       items[i++] = a.name;
 127     }
 128
 129     AlertDialog.Builder builder = new AlertDialog.Builder(this);
 130     builder.setTitle(R.string.common_choose_account);
 131     builder.setCancelable(true);
 132     builder.setItems(items, new DialogInterface.OnClickListener() {
 133         public void onClick(DialogInterface dialog, int item) {
 134             mAccount = accMan.getAccountsByType(AccountAuthenticator.ACCOUNT_TYPE)[item];
 135             dialog.dismiss();
 136             populateFileList();
 137         }
 138     });
 139     builder.setOnCancelListener(new OnCancelListener() {
 140       public void onCancel(DialogInterface dialog) {
 141         OwnCloudMainScreen.this.finish();
 142       }
 143     });
 144     AlertDialog alert = builder.create();
 145     return alert;
 146   }
 147
 148   @Override
 149   public void onBackPressed() {
 150     PathLayout pl = (PathLayout) findViewById(R.id.pathLayout1);
 151     if (mIsDisplayingFile) {
 152       mIsDisplayingFile = false;
 153       setContentView(R.layout.main);
 154       pl = (PathLayout) findViewById(R.id.pathLayout1);
 155       Uri uri;
 156       if (mParents.empty()) {
 157         uri = ProviderTableMeta.CONTENT_URI;
 158       } else {
 159         uri = Uri.withAppendedPath(ProviderTableMeta.CONTENT_URI_DIR, mParents.peek());
 160       }
 161       mCursor = managedQuery(uri,
 162                              null,
 163                              ProviderTableMeta.FILE_ACCOUNT_OWNER+"=?",
 164                              new String[]{mAccount.name}, null);
 165
 166       if (mCursor.moveToFirst()) {
 167         String s = mCursor.getString(mCursor.getColumnIndex(ProviderTableMeta.FILE_PATH));
 168         for (String str : s.split("/")) {
 169           if (!TextUtils.isEmpty(str))
 170             pl.push(DisplayUtils.HtmlDecode(str));
 171         }
 172       }
 173       getListView().setAdapter(new FileListListAdapter(mCursor, this));
 174       getListView().invalidate();
 175       return;
 176     }
 177     if (mParents.size()==0) {
 178       super.onBackPressed();
 179       return;
 180     } else if (mParents.size() == 1) {
 181       mParents.pop();
 182       pl.pop();
 183       mCursor = managedQuery(ProviderTableMeta.CONTENT_URI,
 184           null,
 185           ProviderTableMeta.FILE_ACCOUNT_OWNER+"=?",
 186           new String[]{mAccount.name},
 187           null);
 188     } else {
 189       mParents.pop();
 190       pl.pop();
 191       mCursor = managedQuery(Uri.withAppendedPath(ProviderTableMeta.CONTENT_URI_DIR, mParents.peek()),
 192           null,
 193           ProviderTableMeta.FILE_ACCOUNT_OWNER+"=?",
 194           new String[]{mAccount.name},
 195           null);
 196     }
 197
 198     setListAdapter(new FileListListAdapter(mCursor, this));
 199     getListView().invalidate();
 200   }
 201
 202   @Override
 203   protected void onListItemClick(ListView l, View v, int position, long id) {
 204     super.onListItemClick(l, v, position, id);
 205     PathLayout pl = (PathLayout) findViewById(R.id.pathLayout1);
 206     if (!mCursor.moveToPosition(position)) {
 207       throw new IndexOutOfBoundsException("Incorrect item selected");
 208     }
 209     if (!mIsDisplayingFile) {
 210       if (mCursor.getString(mCursor.getColumnIndex(ProviderTableMeta.FILE_CONTENT_TYPE)).equals("DIR")) {
 211         String id_ = mCursor.getString(mCursor.getColumnIndex(ProviderTableMeta._ID));
 212         String dirname = mCursor.getString(mCursor.getColumnIndex(ProviderTableMeta.FILE_NAME));
 213         pl.push(DisplayUtils.HtmlDecode(dirname));
 214         mParents.push(id_);
 215         mCursor = managedQuery(Uri.withAppendedPath(ProviderTableMeta.CONTENT_URI_DIR, id_),
 216                                null,
 217                                ProviderTableMeta.FILE_ACCOUNT_OWNER + "=?",
 218                                new String[]{mAccount.name}, null);
 219         setListAdapter(new FileListListAdapter(mCursor, this));
 220       } else {
 221         mIsDisplayingFile = true;
 222         setContentView(R.layout.file_display);
 223         String id_ = mCursor.getString(mCursor.getColumnIndex(ProviderTableMeta._ID));
 224         mCursor = managedQuery(Uri.withAppendedPath(ProviderTableMeta.CONTENT_URI_FILE, id_),
 225                                null,
 226                                null,
 227                                null,
 228                                null);
 229         mCursor.moveToFirst();
 230         // filename
 231         TextView tv = (TextView) findViewById(R.id.textView1);
 232         tv.setText(mCursor.getString(mCursor.getColumnIndex(ProviderTableMeta.FILE_NAME)));
 233         // filetype
 234         tv = (TextView) findViewById(R.id.textView2);
 235         tv.setText(DisplayUtils.convertMIMEtoPrettyPrint(mCursor.getString(mCursor.getColumnIndex(ProviderTableMeta.FILE_CONTENT_TYPE))));
 236         // size
 237         tv = (TextView) findViewById(R.id.textView3);
 238         tv.setText(DisplayUtils.bitsToHumanReadable(mCursor.getLong(mCursor.getColumnIndex(ProviderTableMeta.FILE_CONTENT_LENGTH))));
 239         // modified
 240         tv = (TextView) findViewById(R.id.textView4);
 241         tv.setText(mCursor.getString(mCursor.getColumnIndex(ProviderTableMeta.FILE_MODIFIED)));
 242         if (!TextUtils.isEmpty(mCursor.getString(mCursor.getColumnIndex(ProviderTableMeta.FILE_STORAGE_PATH)))) {
 243           ImageView iv = (ImageView) findViewById(R.id.imageView1);
 244           Bitmap bmp = BitmapFactory.decodeFile(mCursor.getString(mCursor.getColumnIndex(ProviderTableMeta.FILE_STORAGE_PATH)));
 245           Matrix m = new Matrix();
 246           float scale;
 247           if (bmp.getWidth() > bmp.getHeight()) {
 248             scale = (float) (200./bmp.getWidth());
 249           } else {
 250             scale = (float) (200./bmp.getHeight());
 251           }
 252           m.postScale(scale, scale);
 253           Bitmap newBmp = Bitmap.createBitmap(bmp, 0, 0, bmp.getWidth(), bmp.getHeight(), m, true);
 254           iv.setImageBitmap(newBmp);
 255         }
 256         setListAdapter(new FileListActionListAdapter(mCursor, this, mAccount));
 257       }
 258       getListView().invalidate();
 259     } else {
 260       try {
 261         Intent i = (Intent) getListAdapter().getItem(position);
 262         startActivity(i);
 263       } catch (ClassCastException e) {}
 264     }
 265   }
 266
 267   private void populateFileList() {
 268     mCursor = getContentResolver().query(ProviderTableMeta.CONTENT_URI,
 269                                          null,
 270                                          ProviderTableMeta.FILE_ACCOUNT_OWNER+"=?",
 271                                          new String[]{mAccount.name},
 272                                          null);
 273     setListAdapter(new FileListListAdapter(mCursor, this));
 274     getListView().invalidate();
 275   }
 276
 277   @Override
 278   public void onConfigurationChanged(Configuration newConfig) {
 279     // TODO Auto-generated method stub
 280     //super.onConfigurationChanged(newConfig);
 281   }
 282
 283 }