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  • Committer: Tim Marston
  • Date: 2014-03-01 18:03:39 UTC
  • Revision ID: tim@ed.am-20140301180339-rmfh8x7wys2inc65
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src/am/ed/exportcontacts/FileChooser.java
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/*
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 * FileChooser.java
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 *
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 * Copyright (C) 2010 Tim Marston <edam@waxworlds.org>
 
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 * Copyright (C) 2010 Tim Marston <tim@ed.am>
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 *
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 * This file is part of the Export Contacts program (hereafter referred
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 * to as "this program"). For more information, see
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 * http://www.waxworlds.org/edam/software/android/export-contacts
 
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 * to as "this program").  For more information, see
 
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 * http://ed.am/dev/android/export-contacts
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 *
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 * This program is free software: you can redistribute it and/or modify
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11
 * it under the terms of the GNU General Public License as published by
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 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
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 */
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package org.waxworlds.edam.exportcontacts;
 
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package am.ed.exportcontacts;
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import java.io.File;
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import java.io.FileFilter;
 
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import java.io.IOException;
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import java.util.ArrayList;
 
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import java.util.Collections;
 
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import java.util.Comparator;
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import android.app.AlertDialog;
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import android.app.Dialog;
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import android.content.Context;
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import android.content.DialogInterface;
 
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import android.os.Environment;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.View.OnClickListener;
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        private Dialog _dialog;
56
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57
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        // mode
58
 
        private int _mode;
 
62
        private int _mode = MODE_DIR;
 
63
 
 
64
        // ok was pressed
 
65
        boolean _ok = false;
59
66
 
60
67
        // working path
61
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        private String _path;
62
69
 
 
70
        // selected filename
 
71
        private String _filename;
 
72
 
63
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        // enforce extension (in file-mode)
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        private String[] _extensions;
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75
 
71
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        private DialogInterface.OnDismissListener _on_dismiss_listener;
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        // class that represents a row in the list
74
 
        private class RowItem
 
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        private class RowItem implements Comparable< RowItem >
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        {
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                private String _name;
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                private boolean _directory;
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                {
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                        return _directory;
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                }
 
104
 
 
105
                @Override
 
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                public int compareTo( RowItem that )
 
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                {
 
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                        if( this._directory && !that._directory )
 
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                                return -1;
 
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                        else if( !this._directory && that._directory )
 
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                                return 1;
 
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                        else
 
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                                return this._name.compareToIgnoreCase( that._name );
 
114
                }
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        }
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        // class to manage our list of RowItems
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136
                        }
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                        RowItem rowitem = _items.get( position );
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                        if( rowitem != null ) {
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                                ( (TextView)view.findViewById( R.id.path ) )
 
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                                ( (TextView)view.findViewById( R.id.name ) )
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                                        .setText( rowitem.getName() );
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                                ( (ImageView)view.findViewById( R.id.icon ) ).setVisibility(
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                                        rowitem.isDirectory()? View.VISIBLE : View.GONE );
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                }
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        }
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147
 
 
148
        @SuppressWarnings( "serial" )
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        class InvalidPathPrefixException extends RuntimeException
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        {
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        }
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153
 
132
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133
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        // constructor
134
 
        public FileChooser( int mode )
 
156
        public FileChooser( Context context )
 
157
        {
 
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                _context = context;
 
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        }
 
160
 
 
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        public void setMode( int mode )
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        {
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                _mode = mode;
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        }
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166
        public void setPath( String path )
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        {
141
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 = "";
142
181
        }
143
182
 
144
183
        public void setExtensions( String[] extensions )
162
201
                _path_prefix = _path_prefix.substring( 0, _path_prefix.length() - 1 );
163
202
        }
164
203
 
 
204
        public boolean getOk()
 
205
        {
 
206
                return _ok;
 
207
        }
 
208
 
165
209
        public String getPath()
166
210
        {
167
 
                return _path;
 
211
                return _path + _filename;
168
212
        }
169
213
 
170
 
        public Dialog onCreateDialog( Context context )
 
214
        public Dialog onCreateDialog()
171
215
        {
172
 
                _context = context;
173
 
 
174
216
                // custom layout in an AlertDialog
175
 
                LayoutInflater factory = LayoutInflater.from( context );
 
217
                LayoutInflater factory = LayoutInflater.from( _context );
176
218
                final View dialogView = factory.inflate(
177
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                        R.layout.filechooser, null );
178
220
 
183
225
                        .setOnItemClickListener( _fileChooserItemClickListener );
184
226
 
185
227
                // return dialog
186
 
                Dialog dialog = new AlertDialog.Builder( context )
 
228
                Dialog dialog = new AlertDialog.Builder( _context )
187
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                        .setTitle( " " )
188
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                        .setView( dialogView )
189
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                        .create();
198
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                        {
199
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                        case R.id.ok:
200
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                                // close dialog and free (don't keep a reference)
 
243
                                _ok = true;
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244
                                _dialog.dismiss();
202
245
                                break;
203
246
                        }
205
248
        };
206
249
 
207
250
        private OnItemClickListener _fileChooserItemClickListener = new OnItemClickListener() {
208
 
                public void onItemClick( AdapterView adapterView, View view, int position, long id )
 
251
                public void onItemClick( AdapterView< ? > adapterView, View view, int position, long id )
209
252
                {
210
253
                        RowItem rowitem = _items.get( position );
211
254
 
217
260
                                        strtipLastFilepartFromPath();
218
261
                                else
219
262
                                        _path += dirname + "/";
 
263
                                _filename = "";
220
264
 
221
 
                                populateList();
 
265
                                updateList();
222
266
                        }
 
267
 
 
268
                        // handle file selections
223
269
                        else
224
270
                        {
225
 
 
 
271
                                _filename = rowitem.getName();
 
272
                                updateCurrentSelection();
226
273
                        }
227
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                }
228
275
        };
233
280
                _dialog = dialog;
234
281
                _context = context;
235
282
 
236
 
                // pick title
237
 
                int title = 0;
 
283
                // reset "ok"
 
284
                _ok = false;
 
285
 
 
286
                // pick text based on mode
 
287
                int title = 0, current = 0;
238
288
                switch( _mode ) {
239
 
                case MODE_DIR: title = R.string.filechooser_title_dir; break;
240
 
                case MODE_FILE: title = R.string.filechooser_title_file; break;
 
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;
241
297
                }
242
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 = "";
243
305
 
244
306
                // set root path icon
245
307
                ( (ImageView)_dialog.findViewById( R.id.icon ) )
246
308
                        .setImageResource( pathIcon( cleanUpPath( _path_prefix ) ) );
247
309
 
248
310
                // setup current-path-specific stuff
249
 
                populateList();
 
311
                updateList();
250
312
        }
251
313
 
252
314
        public static String cleanUpPath( String path )
262
324
 
263
325
        public static int pathIcon( String path )
264
326
        {
265
 
                if( path.equals( "/sdcard/" ) )
 
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 ) )
266
341
                        return R.drawable.sdcard;
267
342
 
 
343
                // default
268
344
                return R.drawable.directory;
269
345
        }
270
346
 
271
 
        public static String prettyPrint( Context context, String path,
272
 
                boolean full_path )
 
347
        public String prettyPrint( String full_path, boolean return_full )
273
348
        {
274
 
                if( path.equals( "/sdcard/" ) )
275
 
                        return context.getString( R.string.filechooser_path_sdcard );
276
 
 
277
 
                // unless path is "/", strip trailing "/".
 
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 "/"
278
372
                if( path.length() > 1 && path.endsWith( "/" ) )
279
373
                        path = path.substring( 0, path.length() - 1 );
280
374
 
281
375
                // if full path not required, strip off preceding directories
282
 
                if( !full_path ) {
 
376
                if( !return_full ) {
283
377
                        int idx = path.lastIndexOf( "/" );
284
378
                        if( idx != -1 ) path = path.substring( idx + 1 );
285
379
                }
293
387
                if( at != -1 ) _path = _path.substring( 0, at + 1 );
294
388
        }
295
389
 
296
 
        protected void populateList()
 
390
        protected void updateList()
297
391
        {
298
392
                // reset item list
299
393
                _items = new ArrayList< RowItem >();
318
412
                        }
319
413
                }
320
414
                File[] files = dir.listFiles( new DirFilter() );
321
 
                for( int i = 0; i < files.length; i++ )
322
 
                        _items.add( new RowItem( files[ i ].getName(), true ) );
 
415
                if( files != null )
 
416
                        for( int i = 0; i < files.length; i++ )
 
417
                                _items.add( new RowItem( files[ i ].getName(), true ) );
323
418
 
324
419
                // get files
325
420
                if( _mode == MODE_FILE )
336
431
                                }
337
432
                        }
338
433
                        files = dir.listFiles( new VCardFilter() );
339
 
                        for( int i = 0; i < files.length; i++ )
340
 
                                _items.add( new RowItem( files[ i ].getName(), false ) );
341
 
                }
 
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() );
342
447
 
343
448
                // setup directory list
344
449
                ( (ListView)_dialog.findViewById( R.id.list ) ).setAdapter(
345
450
                        new RowItemAdapter( _context, R.layout.filechooser_row,
346
451
                                _items ) );
347
452
 
 
453
                updateCurrentSelection();
 
454
        }
 
455
 
 
456
        private void updateCurrentSelection()
 
457
        {
348
458
                // set current path
349
 
                String pretty_path =
350
 
                        prettyPrint( _context, _path_prefix + _path, true );
351
 
                if( pretty_path.startsWith( _path_prefix ) )
352
 
                        pretty_path = pretty_path.substring( _path_prefix.length() );
353
 
                if( !pretty_path.startsWith( "/" ) )
354
 
                        pretty_path = " " + pretty_path;
355
 
                ( (TextView)_dialog.findViewById( R.id.path ) ).setText( pretty_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 );
356
467
        }
357
468
 
358
469
}