summaryrefslogtreecommitdiffstats
path: root/kio/kfile/kdiroperator.h
blob: 73798b92cde96e1d38479b7bf82bf093f9396abb (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
// -*- c++ -*-
/* This file is part of the KDE libraries
    Copyright (C) 1999 Stephan Kulow <coolo@kde.org>
		  2000,2001 Carsten Pfeiffer <pfeiffer@kde.org>

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.

    This library 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
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
*/
#ifndef KDIROPERATOR_H_
#define KDIROPERATOR_H_

#include <tqwidget.h>
#include <tqptrstack.h>

#include <kaction.h>
#include <kcompletion.h>
#include <kdirlister.h>
#include <kfileview.h>
#include <kfileitem.h>
#include <kfile.h>

class TQPopupMenu;
class TQTimer;

class KAction;
class KDirLister;
class KToggleAction;
class KActionSeparator;
class KActionMenu;
class TQWidgetStack;
class KProgress;
namespace TDEIO {
  class CopyJob;
  class DeleteJob;
}

/**
 * This widget works as a network transparent filebrowser. You specify a URL
 * to display and this url will be loaded via KDirLister. The user can
 * browse through directories, highlight and select files, delete or rename
 * files.
 *
 * It supports different views, e.g. a detailed view (see KFileDetailView),
 * a simple icon view (see KFileIconView), a combination of two views,
 * separating directories and files ( KCombiView).
 *
 * Additionally, a preview view is available (see KFilePreview), which can
 * show either a simple or detailed view and additionally a preview widget
 * (see setPreviewWidget()). KImageFilePreview is one implementation
 * of a preview widget, that displays previews for all supported filetypes
 * utilizing TDEIO::PreviewJob.
 *
 * Currently, those classes don't support Drag&Drop out of the box -- there
 * you have to use your own view-classes. You can use some DnD-aware views
 * from Bj�n Sahlstr� <bjorn@kbear.org> until they will be integrated
 * into this library. See http://devel-home.kde.org/~pfeiffer/DnD-classes.tar.gz
 *
 * This widget is the one used in the KFileDialog.
 *
 * Basic usage is like this:
 * \code
 *   KDirOperator *op = new KDirOperator( KURL( "file:/home/gis" ), this );
 *   // some signals you might be interested in
 *   connect(op, TQT_SIGNAL(urlEntered(const KURL&)),
 *           TQT_SLOT(urlEntered(const KURL&)));
 *   connect(op, TQT_SIGNAL(fileHighlighted(const KFileItem *)),
 *           TQT_SLOT(fileHighlighted(const KFileItem *)));
 *   connect(op, TQT_SIGNAL(fileSelected(const KFileItem *)),
 *           TQT_SLOT(fileSelected(const KFileItem *)));
 *   connect(op, TQT_SIGNAL(finishedLoading()),
 *           TQT_SLOT(slotLoadingFinished()));
 *
 *   op->readConfig( TDEGlobal::config(), "Your KDiroperator ConfigGroup" );
 *   op->setView(KFile::Default);
 * \endcode
 *
 * This will create a childwidget of 'this' showing the directory contents
 * of /home/gis in the default-view. The view is determined by the readConfig()
 * call, which will read the KDirOperator settings, the user left your program
 * with (and which you saved with op->writeConfig()).
 *
 * @short A widget for displaying files and browsing directories.
 * @author Stephan Kulow <coolo@kde.org>, Carsten Pfeiffer <pfeiffer@kde.org>
 */
class KIO_EXPORT KDirOperator : public TQWidget
{
    Q_OBJECT

 public:
    /**
     * The various action types. These values can be or'd together
     * @since 3.1
     */
    enum ActionTypes { SortActions = 1,
                       ViewActions = 2,
                       NavActions = 4,
                       FileActions = 8,
                       AllActions = 15 };
    /**
     * Constructs the KDirOperator with no initial view. As the views are
     * configurable, call readConfig() to load the user's configuration
     * and then setView to explicitly set a view.
     *
     * This constructor doesn't start loading the url, setView will do it.
     */
    KDirOperator(const KURL& urlName = KURL(),
		 TQWidget *parent = 0, const char* name = 0);
    /**
     * Destroys the KDirOperator.
     */
    virtual ~KDirOperator();

    /**
     * Enables/disables showing hidden files.
     */
	// ### KDE4: make virtual
    void setShowHiddenFiles ( bool s ) { showHiddenAction->setChecked( s ); }

    /**
     * @returns true when hidden files are shown or false otherwise.
     */
    bool showHiddenFiles () const { return showHiddenAction->isChecked(); }

    /**
     * Stops loading immediately. You don't need to call this, usually.
     */
    void close();
    /// Reimplemented to avoid "hidden virtual" warnings
    virtual bool close( bool alsoDelete ) { return TQWidget::close( alsoDelete ); }

    /**
     * Sets a filter like "*.cpp *.h *.o". Only files matching that filter
     * will be shown. Call updateDir() to apply it.
     *
     * @see KDirLister::setNameFilter
     * @see nameFilter
     */
    void setNameFilter(const TQString& filter);

    /**
     * @returns the current namefilter.
     * @see setNameFilter
     */
    const TQString& nameFilter() const { return dir->nameFilter(); }

    /**
     * Sets a list of mimetypes as filter. Only files of those mimetypes
     * will be shown.
     *
     * Example:
     * \code
     * TQStringList filter;
     * filter << "text/html" << "image/png" << "inode/directory";
     * dirOperator->setMimefilter( filter );
     * \endcode
     *
     * Node: Without the mimetype inode/directory, only files would be shown.
     * Call updateDir() to apply it.
     *
     * @see KDirLister::setMimeFilter
     * @see mimeFilter
     */
    void setMimeFilter( const TQStringList& mimetypes );

    /**
     * @returns the current mime filter.
     */
    TQStringList mimeFilter() const { return dir->mimeFilters(); }

    /**
     * Clears both the namefilter and mimetype filter, so that all files and
     * directories will be shown. Call updateDir() to apply it.
     *
     * @see setMimeFilter
     * @see setNameFilter
     */
    void clearFilter();

    /**
     * @returns the current url
     */
    KURL url() const;

    /**
     * Sets a new url to list.
     * @param clearforward specifies whether the "forward" history should be cleared.
     * @param url the URL to set
     */
	// ### KDE4: make virtual
    void setURL(const KURL& url, bool clearforward);

    /**
     * Clears the current selection and attempts to set @p filename
     * the current file. filename is just the name, no path or url.
     */
    void setCurrentItem( const TQString& filename );

    /**
     * Sets a new KFileView to be used for showing and browsing files.
     * Note: this will read the current url() to fill the view.
     *
     * @see KFileView
     * @see KFileIconView
     * @see KFileDetailView
     * @see KCombiView
     * @see view
     */
	// ### KDE4: make virtual
    void setView(KFileView *view);

    /**
     * @returns the currently used view.
     * @see setView
     */
    KFileView * view() const { return m_fileView; }

    /**
     * Returns the widget of the current view. 0L if there is no view/widget.
     * (KFileView itself is not a widget.)
     */
    TQWidget * viewWidget() const { return m_fileView ? m_fileView->widget() : 0L; }

    /**
     * Sets one of the predefined fileviews
     * @see KFile::FileView
     */
	// ### KDE4: make virtual
    void setView(KFile::FileView view);

    /**
     * Sets the way to sort files and directories.
     */
    void setSorting( TQDir::SortSpec );

    /**
     * @returns the current way of sorting files and directories
     */
    TQDir::SortSpec sorting() const { return mySorting; }

    /**
     * @returns true if we are displaying the root directory of the current url
     */
    bool isRoot() const { return url().path() == TQChar('/'); }

    /**
     * @returns the object listing the directory
     */
    KDirLister *dirLister() const { return dir; }

    /**
     * @returns the progress widget, that is shown during directory listing.
     * You can for example reparent() it to put it into a statusbar.
     */
    KProgress * progressBar() const;

    /**
     * Sets the listing/selection mode for the views, an OR'ed combination of
     * @li File
     * @li Directory
     * @li Files
     * @li ExistingOnly
     * @li LocalOnly
     *
     * You cannot mix File and Files of course, as the former means
     * single-selection mode, the latter multi-selection.
     */
	// ### KDE4: make virtual
    void setMode( KFile::Mode m );
    /**
     * @returns the listing/selection mode.
     */
    KFile::Mode mode() const;

    /**
     * Sets a preview-widget to be shown next to the file-view.
     * The ownership of @p w is transferred to KDirOperator, so don't
     * delete it yourself!
     */
	// ### KDE4: make virtual
    void setPreviewWidget(const TQWidget *w);

    /**
     * @returns a list of all currently selected items. If there is no view,
     * then 0L is returned.
     */
    const KFileItemList * selectedItems() const {
	return ( m_fileView ? m_fileView->selectedItems() : 0L );
    }

    /**
     * @returns true if @p item is currently selected, or false otherwise.
     */
    inline bool isSelected( const KFileItem *item ) const {
	return ( m_fileView ? m_fileView->isSelected( item ) : false );
    }

    /**
     * @returns the number of directories in the currently listed url.
     * Returns 0 if there is no view.
     */
    int numDirs() const;

    /**
     * @returns the number of files in the currently listed url.
     * Returns 0 if there is no view.
     */
    int numFiles() const;

    /**
     * @returns a KCompletion object, containing all filenames and
     * directories of the current directory/URL.
     * You can use it to insert it into a KLineEdit or KComboBox
     * Note: it will only contain files, after prepareCompletionObjects()
     * has been called. It will be implicitly called from makeCompletion()
     * or makeDirCompletion()
     */
    KCompletion * completionObject() const {
	return const_cast<KCompletion *>( &myCompletion );
    }

    /**
     * @returns a KCompletion object, containing only all directories of the
     * current directory/URL.
     * You can use it to insert it into a KLineEdit or KComboBox
     * Note: it will only contain directories, after
     * prepareCompletionObjects() has been called. It will be implicitly
     * called from makeCompletion() or makeDirCompletion()
     */
    KCompletion *dirCompletionObject() const {
	return const_cast<KCompletion *>( &myDirCompletion );
    }

    /**
     * an accessor to a collection of all available Actions. The actions
     * are static, they will be there all the time (no need to connect to
     * the signals KActionCollection::inserted() or removed().
     *
     * There are the following actions:
     *
     * @li popupMenu : an ActionMenu presenting a popupmenu with all actions
     * @li up : changes to the parent directory
     * @li back : goes back to the previous directory
     * @li forward : goes forward in the history
     * @li home : changes to the user's home directory
     * @li reload : reloads the current directory
     * @li separator : a separator
     * @li mkdir : opens a dialog box to create a directory
     * @li delete : deletes the selected files/directories
     * @li sorting menu : an ActionMenu containing all sort-options
     * @li by name : sorts by name
     * @li by date : sorts by date
     * @li by size : sorts by size
     * @li reversed : reverses the sort order
     * @li dirs first : sorts directories before files
     * @li case insensitive : sorts case insensitively
     * @li view menu : an ActionMenu containing all actions concerning the view
     * @li short view : shows a simple fileview
     * @li detailed view : shows a detailed fileview (dates, permissions ,...)
     * @li show hidden : shows hidden files
     * @li separate dirs : shows directories in a separate pane
     * @li preview  : shows a preview next to the fileview
     * @li single : hides the separate view for directories or the preview
     * @li properties : shows a KPropertiesDialog for the selected files
     *
     * The short and detailed view are in an exclusive group. The sort-by
     * actions are in an exclusive group as well. Also the "separate dirs",
     * "preview" and "single" actions are in an exclusive group.
     *
     * You can e.g. use
     * \code
     * actionCollection()->action( "up" )->plug( someToolBar );
     * \endcode
     * to add a button into a toolbar, which makes the dirOperator change to
     * its parent directory.
     *
     * @returns all available Actions
     */
    KActionCollection * actionCollection() const { return myActionCollection; }

    /**
     * Sets the config object and the to be used group in KDirOperator. This
     * will be used to store the view's configuration via
     * KFileView::writeConfig() (and for KFileView::readConfig()).
     * If you don't set this, the views cannot save and restore their
     * configuration.
     *
     * Usually you call this right after KDirOperator creation so that the view
     * instantiation can make use of it already.
     *
     * Note that KDirOperator does NOT take ownership of that object (typically
     * it's TDEGlobal::config() anyway.
     *
     * @see viewConfig
     * @see viewConfigGroup
     * @since 3.1
     */
	// ### KDE4: make virtual
    void setViewConfig( TDEConfig *config, const TQString& group );

    /**
     * Returns the TDEConfig object used for saving and restoring view's
     * configuration.
     * @returns the TDEConfig object used for saving and restoring view's
     * configuration.
     * @since 3.1
     */
    TDEConfig *viewConfig();

    /**
     * Returns the group name used for saving and restoring view's
     * configuration.
     * @returns the group name used for saving and restoring view's
     * configuration.
     * @since 3.1
     */
    TQString viewConfigGroup() const;

    /**
     * Reads the default settings for a view, i.e. the default KFile::FileView.
     * Also reads the sorting and whether hidden files should be shown.
     * Note: the default view will not be set - you have to call
     * \code
     * setView( KFile::Default )
     * \endcode
     * to apply it.
     *
     * @see setView
     * @see setViewConfig
     * @see writeConfig
     */
    virtual void readConfig( TDEConfig *, const TQString& group = TQString::null );

    /**
     * Saves the current settings like sorting, simple or detailed view.
     *
     * @see readConfig
     * @see setViewConfig
     */
    virtual void writeConfig( TDEConfig *, const TQString& group = TQString::null );


    /**
     * This is a KFileDialog specific hack: we want to select directories with
     * single click, but not files. But as a generic class, we have to be able
     * to select files on single click as well.
     *
     * This gives us the opportunity to do both.
     *
     * The default is false, set it to true if you don't want files selected
     * with single click.
     */
    void setOnlyDoubleClickSelectsFiles( bool enable );

    /**
     * @returns whether files (not directories) should only be select()ed by
     * double-clicks.
     * @see setOnlyDoubleClickSelectsFiles
     */
    bool onlyDoubleClickSelectsFiles() const;

    /**
     * Creates the given directory/url. If it is a relative path,
     * it will be completed with the current directory.
     * If enterDirectory is true, the directory will be entered after a
     * successful operation. If unsuccessful, a messagebox will be presented
     * to the user.
     * @returns true if the directory could be created.
     */
	// ### KDE4: make virtual and turn TQString into KURL
    bool mkdir( const TQString& directory, bool enterDirectory = true );

    /**
     * Starts and returns a TDEIO::DeleteJob to delete the given @p items.
     *
     * @param items the list of items to be deleted
     * @param ask specifies whether a confirmation dialog should be shown
     * @param showProgress passed to the DeleteJob to show a progress dialog
     */
	// ### KDE4: make virtual
    TDEIO::DeleteJob * del( const KFileItemList& items,
                          bool ask = true, bool showProgress = true );

    /**
     * Starts and returns a TDEIO::DeleteJob to delete the given @p items.
     *
     * @param items the list of items to be deleted
     * @param parent the parent widget used for the confirmation dialog
     * @param ask specifies whether a confirmation dialog should be shown
     * @param showProgress passed to the DeleteJob to show a progress dialog
     * @since 3.1
     */
	// ### KDE4: make virtual
    TDEIO::DeleteJob * del( const KFileItemList& items, TQWidget *parent,
                          bool ask = true, bool showProgress = true );

    /**
     * Clears the forward and backward history.
     */
    void clearHistory();

    /**
     * When going up in the directory hierarchy, KDirOperator can highlight
     * the directory that was just left.
     *
     * I.e. when you go from /home/gis/src to /home/gis, the item "src" will
     * be made the current item.
     *
     * Default is off, because this behavior introduces bug #136630.
     * Don't enable until this bug is fixed.
     */
	// ### KDE4: make virtual
    void setEnableDirHighlighting( bool enable );

    /**
     * @returns whether the last directory will be made the current item
     * when going up in the directory hierarchy.
     *
     * Default is false.
     */
    bool dirHighlighting() const;

    /**
     * @returns true if we are in directory-only mode, that is, no files are
     * shown.
     */
    bool dirOnlyMode() const { return dirOnlyMode( myMode ); }

    static bool dirOnlyMode( uint mode ) {
        return ( (mode & KFile::Directory) &&
                 (mode & (KFile::File | KFile::Files)) == 0 );
    }

    /**
     * Sets up the action menu.
     * @param whichActions is an value of OR'd ActionTypes that controls which actions to show in the action menu
     */
    void setupMenu(int whichActions);

    /**
     * Reimplemented - allow dropping of files if @p b is true
     * @param b true if the widget should allow dropping of files
     */
    virtual void setAcceptDrops(bool b);

    /**
     * Sets the options for dropping files.
     * @see KFileView::DropOptions
     * @since 3.2
     */
     // ### KDE4: make virtual
    void setDropOptions(int options);

    /**
     * Starts and returns a TDEIO::CopyJob to trash the given @p items.
     *
     * @param items the list of items to be trashed
     * @param parent the parent widget used for the confirmation dialog
     * @param ask specifies whether a confirmation dialog should be shown
     * @param showProgress passed to the CopyJob to show a progress dialog
     * @since 3.4
     */
     // ### KDE4: make virtual
    TDEIO::CopyJob * trash( const KFileItemList& items, TQWidget *parent,
                       bool ask = true, bool showProgress = true );

protected:
    /**
     * A view factory for creating predefined fileviews. Called internally by setView
	 * , but you can also call it directly. Reimplement this if you depend on self defined fileviews.
	 * @param parent is the TQWidget to be set as parent
	 * @param view is the predefined view to be set, note: this can be several ones OR:ed together.
	 * @returns the created KFileView
     * @see KFileView
     * @see KCombiView
     * @see KFileDetailView
     * @see KFileIconView
     * @see KFilePreview
     * @see KFile::FileView
     * @see setView
     */
     virtual KFileView* createView( TQWidget* parent, KFile::FileView view );
     /**
     * Sets a custom KDirLister to list directories.
     */
	// ### KDE4: make virtual
    void setDirLister( KDirLister *lister );

    virtual void resizeEvent( TQResizeEvent * );

    /**
     * Sets up all the actions. Called from the constructor, you usually
     * better not call this.
     */
    void setupActions();

    /**
     * Updates the sorting-related actions to comply with the current sorting
     * @see sorting
     */
    void updateSortActions();

    /**
     * Updates the view-related actions to comply with the current
     * KFile::FileView
     */
    void updateViewActions();

    /**
     * Sets up the context-menu with all the necessary actions. Called from the
     * constructor, you usually don't need to call this.
     * @since 3.1
     */
    void setupMenu();

    /**
     * Synchronizes the completion objects with the entries of the
     * currently listed url.
     *
     * Automatically called from makeCompletion() and
     * makeDirCompletion()
     */
    void prepareCompletionObjects();

    /**
     * Checks if there support from TDEIO::PreviewJob for the currently
     * shown files, taking mimeFilter() and nameFilter() into account
     * Enables/disables the preview-action accordingly.
     */
    bool checkPreviewSupport();

public slots:
    /**
     * Goes one step back in the history and opens that url.
     */
	// ### KDE4: make virtual
    void back();

    /**
     * Goes one step forward in the history and opens that url.
     */
	// ### KDE4: make virtual
    void forward();

    /**
     * Enters the home directory.
     */
	// ### KDE4: make virtual
    void home();

    /**
     * Goes one directory up from the current url.
     */
	// ### KDE4: make virtual
    void cdUp();

    /**
     * to update the view after changing the settings
     */
    void updateDir();

    /**
     * Re-reads the current url.
     */
	// ### KDE4: make virtual
    void rereadDir();

    /**
     * Opens a dialog to create a new directory.
     */
	// ### KDE4: make virtual
    void mkdir();

    /**
     * Deletes the currently selected files/directories.
     */
	// ### KDE4: make virtual
    void deleteSelected();

    /**
     * Enables/disables actions that are selection dependent. Call this e.g.
     * when you are about to show a popup menu using some of KDirOperators
     * actions.
     */
    void updateSelectionDependentActions();

    /**
     * Tries to complete the given string (only completes files).
     */
    TQString makeCompletion(const TQString&);

    /**
     * Tries to complete the given string (only completes directores).
     */
    TQString makeDirCompletion(const TQString&);

    /**
     * Trashes the currently selected files/directories.
     * @since 3.4
     */
	// ### KDE4: make virtual
    void trashSelected(KAction::ActivationReason, TQt::ButtonState);

protected slots:
    /**
     * Restores the normal cursor after showing the busy-cursor. Also hides
     * the progressbar.
     */
    void resetCursor();

    /**
     * Called after setURL() to load the directory, update the history,
     * etc.
     */
    void pathChanged();

    /**
     * Adds a new list of KFileItems to the view
     * (coming from KDirLister)
     */
    void insertNewFiles(const KFileItemList &newone);

    /**
     * Removes the given KFileItem item from the view (usually called from
     * KDirLister).
     */
    void itemDeleted(KFileItem *);

    /**
     * Enters the directory specified by the given @p item.
     */
	// ### KDE4: make virtual
    void selectDir(const KFileItem *item );

    /**
     * Emits fileSelected( item )
     */
    void selectFile(const KFileItem *item);

    /**
     * Emits fileHighlighted( i )
     */
    void highlightFile(const KFileItem* i) { emit fileHighlighted( i ); }

    /**
     * Called upon right-click to activate the popupmenu.
     */
    virtual void activatedMenu( const KFileItem *, const TQPoint& pos );

    /**
     * Changes sorting to sort by name
     */
    void sortByName() 		{ byNameAction->setChecked( true ); }

    /**
     * Changes sorting to sort by size
     */
    void sortBySize() 		{ bySizeAction->setChecked( true ); }

    /**
     * Changes sorting to sort by date
     */
    void sortByDate() 		{ byDateAction->setChecked( true ); }

    /**
     * Changes sorting to reverse sorting
     */
    void sortReversed() 	{ reverseAction->setChecked( !reverseAction->isChecked() ); }

    /**
     * Toggles showing directories first / having them sorted like files.
     */
    void toggleDirsFirst() 	{ dirsFirstAction->setChecked( !dirsFirstAction->isChecked() ); }

    /**
     * Toggles case sensitive / case insensitive sorting
     */
    void toggleIgnoreCase() 	{ caseInsensitiveAction->setChecked( !caseInsensitiveAction->isChecked() ); }

    /**
     * Tries to make the given @p match as current item in the view and emits
     * completion( match )
     */
    void slotCompletionMatch(const TQString& match);

signals:
    void urlEntered(const KURL& );
    void updateInformation(int files, int dirs);
    void completion(const TQString&);
    void finishedLoading();

    /**
     * Emitted whenever the current fileview is changed, either by an explicit
     * call to setView() or by the user selecting a different view thru
     * the GUI.
     */
    void viewChanged( KFileView * newView );

    /**
     * Emitted when a file is highlighted or generally the selection changes in
     * multiselection mode. In the latter case, @p item is 0L. You can access
     * the selected items with selectedItems().
     */
    void fileHighlighted( const KFileItem *item );
    void dirActivated( const KFileItem *item );
    void fileSelected( const KFileItem *item );
    /**
     * Emitted when files are dropped. Dropping files is disabled by
     * default. You need to enable it with setAcceptDrops()
     * @param item the item on which the drop occurred or 0.
     * @param event the drop event itself.
     * @param urls the urls that where dropped.
     * @since 3.2
     */
    void dropped(const KFileItem *item, TQDropEvent*event, const KURL::List&urls);
private:
    /**
     * Contains all URLs you can reach with the back button.
     */
    TQPtrStack<KURL> backStack;

    /**
     * Contains all URLs you can reach with the forward button.
     */
    TQPtrStack<KURL> forwardStack;

    KDirLister *dir;
    KURL currUrl;

    KCompletion myCompletion;
    KCompletion myDirCompletion;
    bool myCompleteListDirty;
    TQDir::SortSpec mySorting;

    /**
     * Checks whether we preview support is available for the current
     * mimetype/namefilter
     */
    bool checkPreviewInternal() const;

    /**
      * takes action on the new location. If it's a directory, change
      * into it, if it's a file, correct the name, etc.
      */
    void checkPath(const TQString& txt, bool takeFiles = false);

    void connectView(KFileView *);

    bool openURL( const KURL& url, bool keep = false, bool reload = false );

    KFileView *m_fileView;
    KFileItemList pendingMimeTypes;

    // the enum KFile::FileView as an int
    int m_viewKind;
    int defaultView;

    KFile::Mode myMode;
    KProgress *progress;

    const TQWidget *myPreview;    // temporary pointer for the preview widget

    // actions for the popupmenus
    // ### clean up all those -- we have them all in the actionMenu!
    KActionMenu *actionMenu;

    KAction 	*backAction;
    KAction 	*forwardAction;
    KAction 	*homeAction;
    KAction 	*upAction;
    KAction 	*reloadAction;
    KActionSeparator *actionSeparator;
    KAction 	*mkdirAction;

    KActionMenu *sortActionMenu;
    KRadioAction *byNameAction;
    KRadioAction *byDateAction;
    KRadioAction *bySizeAction;
    KToggleAction *reverseAction;
    KToggleAction *dirsFirstAction;
    KToggleAction *caseInsensitiveAction;

    KActionMenu *viewActionMenu;
    KRadioAction *shortAction;
    KRadioAction *detailedAction;
    KToggleAction *showHiddenAction;
    KToggleAction *separateDirsAction;

    KActionCollection *myActionCollection;
    KActionCollection *viewActionCollection;

private slots:
    /**
     * @internal
     */
    void slotDetailedView();
    void slotSimpleView();
    void slotToggleHidden( bool );

    void slotSeparateDirs();
    void slotDefaultPreview();
    void togglePreview( bool );

    void slotSortByName();
    void slotSortBySize();
    void slotSortByDate();
    void slotSortReversed();
    void slotToggleDirsFirst();
    void slotToggleIgnoreCase();

    void slotStarted();
    void slotProgress( int );
    void slotShowProgress();
    void slotIOFinished();
    void slotCanceled();
    void slotRedirected( const KURL& );

    void slotViewActionAdded( KAction * );
    void slotViewActionRemoved( KAction * );
    void slotViewSortingChanged( TQDir::SortSpec );

    void slotClearView();
    void slotRefreshItems( const KFileItemList& items );

    void slotProperties();

    void insertViewDependentActions();

private:
    static bool isReadable( const KURL& url );

protected:
    virtual void virtual_hook( int id, void* data );
private:
    class KDirOperatorPrivate;
    KDirOperatorPrivate *d;
};

#endif