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Viewing changes to src/am/ed/exportcontacts/FileChooser.java

Committer: edam
Date: 2010-07-04 14:54:18 UTC
Revision ID: edam@waxworlds.org-20100704145418-vcpya2sxsop0dlrq

- initial checkin
- copied intro and basic vcf-configure activities from import-contacts
- copied WizzardActivity class from import-contacts

files added:
default.properties

gen/org

gen/org/waxworlds

gen/org/waxworlds/edam

gen/org/waxworlds/edam/exportcontacts

gen/org/waxworlds/edam/exportcontacts/R.java

res/drawable/icon.png

src/org

src/org/waxworlds

src/org/waxworlds/edam

files removed:
COPYING

NEWS

TODO

gen/am

gen/am/ed

gen/am/ed/exportcontacts

gen/am/ed/exportcontacts/BuildConfig.java

gen/am/ed/exportcontacts/R.java

project.properties

res/drawable/alert_dialog_icon.png

res/drawable/browse.png

res/drawable/directory.png

res/drawable/family_pic.png

res/drawable/icon.png

res/drawable/sdcard.png

res/layout/doit.xml

res/layout/filechooser.xml

res/layout/filechooser_row.xml

src/am

src/am/ed

src/am/ed/exportcontacts/Backend.java

src/am/ed/exportcontacts/ContactsBackend.java

src/am/ed/exportcontacts/ContactsContractBackend.java

src/am/ed/exportcontacts/Doit.java

src/am/ed/exportcontacts/Exporter.java

src/am/ed/exportcontacts/FileChooser.java

src/am/ed/exportcontacts/VcardExporter.java

files renamed:
src/am/ed/exportcontacts/ => src/org/waxworlds/edam/exportcontacts/

files modified:
.classpath

AndroidManifest.xml

res/layout/configure_vcf.xml

res/layout/intro.xml

res/values/strings.xml

src/org/waxworlds/edam/exportcontacts/ConfigureVCF.java

src/org/waxworlds/edam/exportcontacts/Intro.java

src/org/waxworlds/edam/exportcontacts/WizardActivity.java

Show diffs side-by-side

added added

removed removed

src/am/ed/exportcontacts/FileChooser.java

* FileChooser.java

* This file is part of the Export Contacts program (hereafter referred

* to as "this program"). For more information, see

* http://ed.am/dev/android/export-contacts

* This program is free software: you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation, either version 3 of the License, or

* (at your option) any later version.

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

* GNU General Public License for more details.

* You should have received a copy of the GNU General Public License

* along with this program. If not, see <http://www.gnu.org/licenses/>.

package am.ed.exportcontacts;

import java.io.File;

import java.io.FileFilter;

import java.io.IOException;

import java.util.ArrayList;

import java.util.Collections;

import java.util.Comparator;

import android.app.AlertDialog;

import android.app.Dialog;

import android.content.Context;

import android.content.DialogInterface;

import android.os.Environment;

import android.view.LayoutInflater;

import android.view.View;

import android.view.View.OnClickListener;

import android.view.ViewGroup;

import android.widget.AdapterView;

import android.widget.AdapterView.OnItemClickListener;

import android.widget.ArrayAdapter;

import android.widget.Button;

import android.widget.ImageView;

import android.widget.ListView;

import android.widget.TextView;

public class FileChooser

{

// pick an existing directory

public final static int MODE_DIR = 1;

// pick an existing file

public final static int MODE_FILE = 2;

private Dialog _dialog;

// mode

private int _mode = MODE_DIR;

// ok was pressed

boolean _ok = false;

// working path

private String _path;

// selected filename

private String _filename;

// enforce extension (in file-mode)

private String[] _extensions;

// path to secretly prefix all paths with

private String _path_prefix = "";

private Context _context;

private ArrayList< RowItem > _items;

private DialogInterface.OnDismissListener _on_dismiss_listener;

// class that represents a row in the list

private class RowItem implements Comparable< RowItem >

{

private String _name;

private boolean _directory;

public RowItem( String name, boolean directory )

{

_name = name;

_directory = directory;

}

public String getName()

{

return _name;

}

100

public boolean isDirectory()

101

{

102

return _directory;

103

}

104

105

@Override

106

public int compareTo( RowItem that )

107

{

108

if( this._directory && !that._directory )

109

return -1;

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else if( !this._directory && that._directory )

111

return 1;

112

else

113

return this._name.compareToIgnoreCase( that._name );

114

}

115

}

116

117

// class to manage our list of RowItems

118

private class RowItemAdapter extends ArrayAdapter< RowItem >

119

{

120

private ArrayList< RowItem > _items;

121

122

public RowItemAdapter( Context context, int textview_resource_id,

123

ArrayList< RowItem > items )

124

{

125

super( context, textview_resource_id, items );

126

_items = items;

127

}

128

129

@Override

130

public View getView( int position, View convert_view, ViewGroup parent )

131

{

132

View view = convert_view;

133

if( view == null ) {

134

LayoutInflater factory = LayoutInflater.from( _context );

135

view = factory.inflate( R.layout.filechooser_row, null );

136

}

137

RowItem rowitem = _items.get( position );

138

if( rowitem != null ) {

139

( (TextView)view.findViewById( R.id.name ) )

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.setText( rowitem.getName() );

141

( (ImageView)view.findViewById( R.id.icon ) ).setVisibility(

142

rowitem.isDirectory()? View.VISIBLE : View.GONE );

143

}

144

return view;

145

}

146

}

147

148

@SuppressWarnings( "serial" )

149

class InvalidPathPrefixException extends RuntimeException

150

{

151

}

152

153

154

155

// constructor

156

public FileChooser( Context context )

157

{

158

_context = context;

159

}

160

161

public void setMode( int mode )

162

{

163

_mode = mode;

164

}

165

166

public void setPath( String path )

167

{

168

_path = cleanUpPath( path );

169

File file = new File( _path_prefix + path.trim() );

170

171

// path and filename

172

if( file.isFile() ) {

173

_path = _path.substring( 0, _path.length() - 1 );

174

_filename = _path.substring( _path.lastIndexOf( '/' ) + 1 );

175

_path = _path.substring( 0, _path.length() - _filename.length() );

176

}

177

178

// else, treat as just a path

179

else

180

_filename = "";

181

}

182

183

public void setExtensions( String[] extensions )

184

{

185

_extensions = extensions;

186

}

187

188

// set dismiss listener

189

public void setDismissListener(

190

DialogInterface.OnDismissListener on_dismiss_listener )

191

{

192

_on_dismiss_listener = on_dismiss_listener;

193

}

194

195

// set the path prefix

196

public void setPathPrefix( String path_prefix )

197

{

198

// set to cleaned-up path, with trailaing '/' removed so that it can be

199

// trivially pre-pended to a cleaned-up path

200

_path_prefix = cleanUpPath( path_prefix );

201

_path_prefix = _path_prefix.substring( 0, _path_prefix.length() - 1 );

202

}

203

204

public boolean getOk()

205

{

206

return _ok;

207

}

208

209

public String getPath()

210

{

211

return _path + _filename;

212

}

213

214

public Dialog onCreateDialog()

215

{

216

// custom layout in an AlertDialog

217

LayoutInflater factory = LayoutInflater.from( _context );

218

final View dialogView = factory.inflate(

219

R.layout.filechooser, null );

220

221

// wire up buttons

222

( (Button)dialogView.findViewById( R.id.ok ) )

223

.setOnClickListener( _fileChooserButtonListener );

224

( (ListView)dialogView.findViewById( R.id.list ) )

225

.setOnItemClickListener( _fileChooserItemClickListener );

226

227

// return dialog

228

Dialog dialog = new AlertDialog.Builder( _context )

229

.setTitle( " " )

230

.setView( dialogView )

231

.create();

232

dialog.setOnDismissListener( _on_dismiss_listener );

233

return dialog;

234

}

235

236

private OnClickListener _fileChooserButtonListener = new OnClickListener() {

237

public void onClick( View view )

238

{

239

switch( view.getId() )

240

{

241

case R.id.ok:

242

// close dialog and free (don't keep a reference)

243

_ok = true;

244

_dialog.dismiss();

245

break;

246

}

247

}

248

};

249

250

private OnItemClickListener _fileChooserItemClickListener = new OnItemClickListener() {

251

public void onItemClick( AdapterView< ? > adapterView, View view, int position, long id )

252

{

253

RowItem rowitem = _items.get( position );

254

255

// handle directory changes

256

if( rowitem.isDirectory() )

257

{

258

String dirname = rowitem.getName();

259

if( dirname.equals( ".." ) )

260

strtipLastFilepartFromPath();

261

else

262

_path += dirname + "/";

263

_filename = "";

264

265

updateList();

266

}

267

268

// handle file selections

269

else

270

{

271

_filename = rowitem.getName();

272

updateCurrentSelection();

273

}

274

}

275

};

276

277

public void onPrepareDialog( Context context, Dialog dialog )

278

{

279

// set up reference to dialog

280

_dialog = dialog;

281

_context = context;

282

283

// reset "ok"

284

_ok = false;

285

286

// pick text based on mode

287

int title = 0, current = 0;

288

switch( _mode ) {

289

case MODE_DIR:

290

title = R.string.filechooser_title_dir;

291

current = R.string.filechooser_current_dir;

292

break;

293

case MODE_FILE:

294

title = R.string.filechooser_title_file;

295

current = R.string.filechooser_current_file;

296

break;

297

}

298

dialog.setTitle( title );

299

( (TextView)dialog.findViewById( R.id.current ) )

300

.setText( _context.getString( current ) );

301

302

// clear filename in directory mode

303

if( _mode == MODE_DIR )

304

_filename = "";

305

306

// set root path icon

307

( (ImageView)_dialog.findViewById( R.id.icon ) )

308

.setImageResource( pathIcon( cleanUpPath( _path_prefix ) ) );

309

310

// setup current-path-specific stuff

311

updateList();

312

}

313

314

public static String cleanUpPath( String path )

315

{

316

path = path.trim();

317

318

// ensure it starts and ends in a '/'

319

if( !path.startsWith( "/" ) ) path = "/" + path;

320

if( !path.endsWith( "/" ) ) path += "/";

321

322

return path;

323

}

324

325

public static int pathIcon( String path )

326

{

327

// get sdcard path

328

String sdcard_path;

329

try {

330

sdcard_path = Environment.getExternalStorageDirectory()

331

.getCanonicalPath();

332

if( sdcard_path.charAt( sdcard_path.length() - 1 ) != '/' )

333

sdcard_path += "/";

334

}

335

catch( IOException e ) {

336

sdcard_path = null;

337

}

338

339

// special paths

340

if( sdcard_path != null && path.equals( sdcard_path ) )

341

return R.drawable.sdcard;

342

343

// default

344

return R.drawable.directory;

345

}

346

347

public String prettyPrint( String full_path, boolean return_full )

348

{

349

String path = full_path;

350

351

// get sdcard path

352

String sdcard_path;

353

try {

354

sdcard_path = Environment.getExternalStorageDirectory()

355

.getCanonicalPath();

356

if( sdcard_path.charAt( sdcard_path.length() - 1 ) != '/' )

357

sdcard_path += "/";

358

}

359

catch( IOException e ) {

360

sdcard_path = null;

361

}

362

363

// special names

364

if( sdcard_path != null && path.equals( sdcard_path ) )

365

return " " + _context.getString( R.string.filechooser_path_sdcard );

366

367

// remove prefix, if present

368

if( path.startsWith( _path_prefix + "/" ) )

369

path = path.substring( _path_prefix.length() );

370

371

// unless path is "/", strip trailing "/".

372

if( path.length() > 1 && path.endsWith( "/" ) )

373

path = path.substring( 0, path.length() - 1 );

374

375

// if full path not required, strip off preceding directories

376

if( !return_full ) {

377

int idx = path.lastIndexOf( "/" );

378

if( idx != -1 ) path = path.substring( idx + 1 );

379

}

380

381

return path;

382

}

383

384

protected void strtipLastFilepartFromPath()

385

{

386

int at = _path.lastIndexOf( '/', _path.length() - 2 );

387

if( at != -1 ) _path = _path.substring( 0, at + 1 );

388

}

389

390

protected void updateList()

391

{

392

// reset item list

393

_items = new ArrayList< RowItem >();

394

395

// open directory (and ensure _path is a directory)

396

File dir = new File( _path_prefix + _path );

397

while( !dir.isDirectory() ) {

398

if( _path == "/" )

399

throw new InvalidPathPrefixException();

400

strtipLastFilepartFromPath();

401

dir = new File( _path_prefix + _path );

402

}

403

404

// add ".."?

405

if( !_path.equals( "/" ) )

406

_items.add( new RowItem( "..", true ) );

407

408

// get directories

409

class DirFilter implements FileFilter {

410

public boolean accept( File file ) {

411

return file.isDirectory() && file.getName().charAt( 0 ) != '.';

412

}

413

}

414

File[] files = dir.listFiles( new DirFilter() );

415

if( files != null )

416

for( int i = 0; i < files.length; i++ )

417

_items.add( new RowItem( files[ i ].getName(), true ) );

418

419

// get files

420

if( _mode == MODE_FILE )

421

{

422

class VCardFilter implements FileFilter {

423

public boolean accept( File file ) {

424

if( file.isDirectory() || file.getName().startsWith( "." ) )

425

return false;

426

String filename = file.getName().toLowerCase();

427

for( int i = 0; i < _extensions.length; i++ )

428

if( filename.endsWith( "." + _extensions[ i ] ) )

429

return true;

430

return false;

431

}

432

}

433

files = dir.listFiles( new VCardFilter() );

434

if( files != null )

435

for( int i = 0; i < files.length; i++ )

436

_items.add( new RowItem( files[ i ].getName(), false ) );

437

}

438

439

// sort

440

class RowItemSorter implements Comparator< RowItem > {

441

@Override

442

public int compare( RowItem lhs, RowItem rhs ) {

443

return lhs.compareTo( rhs );

444

}

445

}

446

Collections.sort( _items, new RowItemSorter() );

447

448

// setup directory list

449

( (ListView)_dialog.findViewById( R.id.list ) ).setAdapter(

450

new RowItemAdapter( _context, R.layout.filechooser_row,

451

_items ) );

452

453

updateCurrentSelection();

454

}

455

456

private void updateCurrentSelection()

457

{

458

// set current path

459

( (TextView)_dialog.findViewById( R.id.path ) ).setText(

460

prettyPrint( _path_prefix + _path + _filename, true ) );

461

462

// enable/disable ok button

463

if( _mode == MODE_FILE )

464

_dialog.findViewById( R.id.ok ).setEnabled( _filename != "" );

465

else

466

_dialog.findViewById( R.id.ok ).setEnabled( true );

467

}

468

469

}

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