summaryrefslogtreecommitdiffstats
path: root/dbaccess/source/ui/dlg/indexdialog.cxx
blob: 4c93128482d55ef677e1dad2c5af10388ac29742 (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
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#include <sal/config.h>

#include <set>

#include <core_resource.hxx>
#include <indexdialog.hxx>
#include <strings.hrc>
#include <bitmaps.hlst>
#include <indexfieldscontrol.hxx>
#include <indexcollection.hxx>
#include <vcl/svapp.hxx>
#include <vcl/weld.hxx>
#include <com/sun/star/sdb/SQLContext.hpp>
#include <connectivity/dbtools.hxx>
#include <osl/diagnose.h>

namespace dbaui
{

    using namespace ::com::sun::star::uno;
    using namespace ::com::sun::star::container;
    using namespace ::com::sun::star::sdbc;
    using namespace ::com::sun::star::sdb;
    using namespace ::com::sun::star::lang;
    using namespace ::dbtools;

    // helper
    static bool operator ==(const OIndexField& _rLHS, const OIndexField& _rRHS)
    {
        return  (_rLHS.sFieldName == _rRHS.sFieldName)
            &&  (_rLHS.bSortAscending == _rRHS.bSortAscending);
    }

    static bool operator ==(const IndexFields& _rLHS, const IndexFields& _rRHS)
    {
        return std::equal(_rLHS.begin(), _rLHS.end(), _rRHS.begin(), _rRHS.end());
    }

    static bool operator !=(const IndexFields& _rLHS, const IndexFields& _rRHS)
    {
        return !(_rLHS == _rRHS);
    }

    // DbaIndexDialog
    DbaIndexDialog::DbaIndexDialog(weld::Window* pParent, const Sequence< OUString >& _rFieldNames,
                                   const Reference< XNameAccess >& _rxIndexes,
                                   const Reference< XConnection >& _rxConnection,
                                   const Reference< XComponentContext >& _rxContext)
        : GenericDialogController(pParent, "dbaccess/ui/indexdesigndialog.ui", "IndexDesignDialog")
        , m_xConnection(_rxConnection)
        , m_bEditingActive(false)
        , m_bEditAgain(false)
        , m_bNoHandlerCall(false)
        , m_xContext(_rxContext)
        , m_xActions(m_xBuilder->weld_toolbar("ACTIONS"))
        , m_xIndexList(m_xBuilder->weld_tree_view("INDEX_LIST"))
        , m_xIndexDetails(m_xBuilder->weld_label("INDEX_DETAILS"))
        , m_xDescriptionLabel(m_xBuilder->weld_label("DESC_LABEL"))
        , m_xDescription(m_xBuilder->weld_label("DESCRIPTION"))
        , m_xUnique(m_xBuilder->weld_check_button("UNIQUE"))
        , m_xFieldsLabel(m_xBuilder->weld_label("FIELDS_LABEL"))
        , m_xClose(m_xBuilder->weld_button("close"))
        , m_xTable(m_xBuilder->weld_container("FIELDS"))
        , m_xTableCtrlParent(m_xTable->CreateChildFrame())
        , m_xFields(VclPtr<IndexFieldsControl>::Create(m_xTableCtrlParent))
    {
        m_xIndexList->set_size_request(m_xIndexList->get_approximate_digit_width() * 17,
                                       m_xIndexList->get_height_rows(12));

        int nWidth = m_xIndexList->get_approximate_digit_width() * 60;
        int nHeight = m_xIndexList->get_height_rows(8);
        m_xTable->set_size_request(nWidth, nHeight);

        m_xActions->connect_clicked(LINK(this, DbaIndexDialog, OnIndexAction));

        m_xIndexList->connect_changed(LINK(this, DbaIndexDialog, OnIndexSelected));
        m_xIndexList->connect_editing(LINK(this, DbaIndexDialog, OnEntryEditing),
                                      LINK(this, DbaIndexDialog, OnEntryEdited));

        m_xFields->SetSizePixel(Size(nWidth, 100));
        m_xFields->Init(_rFieldNames, ::dbtools::getBooleanDataSourceSetting( m_xConnection, "AddIndexAppendix" ));
        m_xFields->Show();

        m_xIndexes.reset(new OIndexCollection());
        try
        {
            m_xIndexes->attach(_rxIndexes);
        }
        catch(SQLException& e)
        {
            ::dbtools::showError(SQLExceptionInfo(e), pParent->GetXWindow(), _rxContext);
        }
        catch(Exception&)
        {
            OSL_FAIL("DbaIndexDialog::DbaIndexDialog: could not retrieve basic information from the UNO collection!");
        }

        fillIndexList();

        m_xUnique->connect_toggled(LINK(this, DbaIndexDialog, OnModifiedClick));
        m_xFields->SetModifyHdl(LINK(this, DbaIndexDialog, OnModified));

        m_xClose->connect_clicked(LINK(this, DbaIndexDialog, OnCloseDialog));

        // if all of the indexes have an empty description, we're not interested in displaying it
        bool bFound = false;
        for (auto const& check : *m_xIndexes)
        {
            if (!check.sDescription.isEmpty())
            {
                bFound = true;
                break;
            }
        }
        if (!bFound)
        {
            // hide the controls which are necessary for the description
            m_xDescription->hide();
            m_xDescriptionLabel->hide();
        }
    }

    void DbaIndexDialog::updateToolbox()
    {
        m_xActions->set_item_sensitive("ID_INDEX_NEW", !m_bEditingActive);

        int nSelected = m_xIndexList->get_selected_index();
        bool bSelectedAnything = nSelected != -1;
        if (bSelectedAnything)
        {
            // is the current entry modified?
            Indexes::const_iterator aSelectedPos = m_xIndexes->begin() + m_xIndexList->get_id(nSelected).toUInt32();
            m_xActions->set_item_sensitive("ID_INDEX_SAVE", aSelectedPos->isModified() || aSelectedPos->isNew());
            m_xActions->set_item_sensitive("ID_INDEX_RESET", aSelectedPos->isModified() || aSelectedPos->isNew());
            bSelectedAnything = !aSelectedPos->bPrimaryKey;
        }
        else
        {
            m_xActions->set_item_sensitive("ID_INDEX_SAVE", false);
            m_xActions->set_item_sensitive("ID_INDEX_RESET", false);
        }
        m_xActions->set_item_sensitive("ID_INDEX_DROP", bSelectedAnything);
        m_xActions->set_item_sensitive("ID_INDEX_RENAME", bSelectedAnything);
    }

    void DbaIndexDialog::fillIndexList()
    {
        OUString aPKeyIcon(BMP_PKEYICON);
        // fill the list with the index names
        m_xIndexList->clear();
        sal_uInt32 nPos = 0;
        for (auto const& indexLoop : *m_xIndexes)
        {
            m_xIndexList->append(OUString::number(nPos), indexLoop.sName);
            if (indexLoop.bPrimaryKey)
                m_xIndexList->set_image(nPos, aPKeyIcon);
            ++nPos;
        }

        if (nPos)
            m_xIndexList->select(0);

        IndexSelected();
    }

    DbaIndexDialog::~DbaIndexDialog( )
    {
        m_xIndexes.reset();
        m_xFields.disposeAndClear();
        m_xTableCtrlParent->dispose();
        m_xTableCtrlParent.clear();
    }

    bool DbaIndexDialog::implCommit(const weld::TreeIter* pEntry)
    {
        assert(pEntry && "DbaIndexDialog::implCommit: invalid entry!");

        Indexes::iterator aCommitPos = m_xIndexes->begin() + m_xIndexList->get_id(*pEntry).toUInt32();

        // if it's not a new index, remove it
        // (we can't modify indexes, only drop'n'insert)
        if (!aCommitPos->isNew())
            if (!implDropIndex(pEntry, false))
                return false;

        // create the new index
        SQLExceptionInfo aExceptionInfo;
        try
        {
            m_xIndexes->commitNewIndex(aCommitPos);
        }
        catch(SQLContext& e) { aExceptionInfo = SQLExceptionInfo(e); }
        catch(SQLWarning& e) { aExceptionInfo = SQLExceptionInfo(e); }
        catch(SQLException& e) { aExceptionInfo = SQLExceptionInfo(e); }

        // reflect the new selection in the toolbox
        updateToolbox();

        if (aExceptionInfo.isValid())
            showError(aExceptionInfo, m_xDialog->GetXWindow(), m_xContext);
        else
        {
            m_xUnique->save_state();
            m_xFields->SaveValue();
        }

        return !aExceptionInfo.isValid();
    }

    void DbaIndexDialog::OnNewIndex()
    {
        // commit the current entry, if necessary
        if (!implCommitPreviouslySelected())
            return;

        // get a new unique name for the new index
        OUString sNewIndexName;
        const OUString sNewIndexNameBase(DBA_RES(STR_LOGICAL_INDEX_NAME));
        sal_Int32 i;

        for ( i = 1; i < 0x7FFFFFFF; ++i )
        {
            sNewIndexName = sNewIndexNameBase + OUString::number(i);
            if (m_xIndexes->end() == m_xIndexes->find(sNewIndexName))
                break;
        }
        if (i == 0x7FFFFFFF)
        {
            OSL_FAIL("DbaIndexDialog::OnNewIndex: no free index name found!");
            // can't do anything ... of course we try another base, but this could end with the same result ...
            return;
        }

        std::unique_ptr<weld::TreeIter> xNewEntry(m_xIndexList->make_iterator());
        m_xIndexList->insert(nullptr, -1, &sNewIndexName, nullptr, nullptr, nullptr, false, xNewEntry.get());
        m_xIndexes->insert(sNewIndexName);

        // update the user data on the entries in the list box:
        // they're iterators of the index collection, and thus they have changed when removing the index
        m_xIndexList->all_foreach([this](weld::TreeIter& rEntry){
            Indexes::const_iterator aAfterInsertPos = m_xIndexes->find(m_xIndexList->get_text(rEntry));
            OSL_ENSURE(aAfterInsertPos != m_xIndexes->end(), "DbaIndexDialog::OnNewIndex: problems with one of the entries!");
            m_xIndexList->set_id(rEntry, OUString::number(aAfterInsertPos - m_xIndexes->begin()));
            return false;
        });

        // select the entry and start in-place editing
        m_bNoHandlerCall = true;
        m_xIndexList->select(*xNewEntry);
        m_bNoHandlerCall = false;
        IndexSelected();
        m_xIndexList->grab_focus();
        m_xIndexList->start_editing(*xNewEntry);
        updateToolbox();
    }

    void DbaIndexDialog::OnDropIndex(bool _bConfirm)
    {
        std::unique_ptr<weld::TreeIter> xSelected(m_xIndexList->make_iterator());
        // the selected index
        if (!m_xIndexList->get_selected(xSelected.get()))
            return;

        // let the user confirm the drop
        if (_bConfirm)
        {
            OUString sConfirm(DBA_RES(STR_CONFIRM_DROP_INDEX));
            sConfirm = sConfirm.replaceFirst("$name$", m_xIndexList->get_text(*xSelected));
            std::unique_ptr<weld::MessageDialog> xConfirm(Application::CreateMessageDialog(m_xDialog.get(),
                                                          VclMessageType::Question, VclButtonsType::YesNo,
                                                          sConfirm));
            if (RET_YES != xConfirm->run())
                return;
        }

        // do the drop
        implDropIndex(xSelected.get(), true);

        // reflect the new selection in the toolbox
        updateToolbox();
    }

    bool DbaIndexDialog::implDropIndex(const weld::TreeIter* pEntry, bool _bRemoveFromCollection)
    {
        // do the drop
        Indexes::iterator aDropPos = m_xIndexes->begin() + m_xIndexList->get_id(*pEntry).toUInt32();
        OSL_ENSURE(aDropPos != m_xIndexes->end(), "DbaIndexDialog::OnDropIndex: did not find the index in my collection!");

        SQLExceptionInfo aExceptionInfo;
        bool bSuccess = false;
        try
        {
            if (_bRemoveFromCollection)
                bSuccess = m_xIndexes->drop(aDropPos);
            else
                bSuccess = m_xIndexes->dropNoRemove(aDropPos);
        }
        catch(SQLContext& e) { aExceptionInfo = SQLExceptionInfo(e); }
        catch(SQLWarning& e) { aExceptionInfo = SQLExceptionInfo(e); }
        catch(SQLException& e) { aExceptionInfo = SQLExceptionInfo(e); }

        if (aExceptionInfo.isValid())
            showError(aExceptionInfo, m_xDialog->GetXWindow(), m_xContext);
        else if (bSuccess && _bRemoveFromCollection)
        {
            m_bNoHandlerCall = true;

            // if the entry to remove is the selected on...
            if (m_xPreviousSelection && m_xPreviousSelection->equal(*pEntry))
                m_xPreviousSelection.reset();
            m_xIndexList->remove(*pEntry);

            m_bNoHandlerCall = false;

            // update the user data on the entries in the list box:
            // they're iterators of the index collection, and thus they have changed when removing the index
            m_xIndexList->all_foreach([this](weld::TreeIter& rEntry){
                Indexes::const_iterator aAfterDropPos = m_xIndexes->find(m_xIndexList->get_text(rEntry));
                OSL_ENSURE(aAfterDropPos != m_xIndexes->end(), "DbaIndexDialog::OnDropIndex: problems with one of the remaining entries!");
                m_xIndexList->set_id(rEntry, OUString::number(aAfterDropPos - m_xIndexes->begin()));
                return false;
            });

            // the Remove automatically selected another entry (if possible), but we disabled the calling of the handler
            // to prevent that we missed something... call the handler directly
            IndexSelected();
        }

        return !aExceptionInfo.isValid();
    }

    void DbaIndexDialog::OnRenameIndex()
    {
        // the selected iterator
        std::unique_ptr<weld::TreeIter> xSelected(m_xIndexList->make_iterator());
        if (!m_xIndexList->get_selected(xSelected.get()))
            return;

        // save the changes made 'til here
        // Upon leaving the edit mode, the control will be re-initialized with the
        // settings from the current entry
        implSaveModified(false);

        m_xIndexList->grab_focus();
        m_xIndexList->start_editing(*xSelected);
        updateToolbox();
    }

    void DbaIndexDialog::OnSaveIndex()
    {
        // the selected index
        implCommitPreviouslySelected();
        updateToolbox();
    }

    void DbaIndexDialog::OnResetIndex()
    {
        // the selected index
        std::unique_ptr<weld::TreeIter> xSelected(m_xIndexList->make_iterator());
        // the selected index
        if (!m_xIndexList->get_selected(xSelected.get()))
            xSelected.reset();
        OSL_ENSURE(xSelected, "DbaIndexDialog::OnResetIndex: invalid call!");
        if (!xSelected)
            return;

        Indexes::iterator aResetPos = m_xIndexes->begin() + m_xIndexList->get_id(*xSelected).toUInt32();

        if (aResetPos->isNew())
        {
            OnDropIndex(false);
            return;
        }

        SQLExceptionInfo aExceptionInfo;
        try
        {
            m_xIndexes->resetIndex(aResetPos);
        }
        catch(SQLContext& e) { aExceptionInfo = SQLExceptionInfo(e); }
        catch(SQLWarning& e) { aExceptionInfo = SQLExceptionInfo(e); }
        catch(SQLException& e) { aExceptionInfo = SQLExceptionInfo(e); }

        if (aExceptionInfo.isValid())
            showError(aExceptionInfo, m_xDialog->GetXWindow(), m_xContext);
        else
            m_xIndexList->set_text(*xSelected, aResetPos->sName);

        updateControls(xSelected.get());
        updateToolbox();
    }

    IMPL_LINK(DbaIndexDialog, OnIndexAction, const OString&, rClicked, void)
    {
        if (rClicked == "ID_INDEX_NEW")
            OnNewIndex();
        else if (rClicked == "ID_INDEX_DROP")
            OnDropIndex();
        else if (rClicked == "ID_INDEX_RENAME")
            OnRenameIndex();
        else if (rClicked == "ID_INDEX_SAVE")
            OnSaveIndex();
        else if (rClicked == "ID_INDEX_RESET")
            OnResetIndex();
    }

    IMPL_LINK_NOARG(DbaIndexDialog, OnCloseDialog, weld::Button&, void)
    {
        if (m_bEditingActive)
        {
            OSL_ENSURE(!m_bEditAgain, "DbaIndexDialog::OnCloseDialog: somebody was faster than hell!");
                // this means somebody entered a new name, which was invalid, which cause us to posted us an event,
                // and before the event arrived the user clicked onto "close". VERY fast, this user...
            m_xIndexList->end_editing();
            if (m_bEditAgain)
                // could not commit the new name (started a new - asynchronous - edit trial)
                return;
        }

        // the currently selected entry
        std::unique_ptr<weld::TreeIter> xSelected(m_xIndexList->make_iterator());
        // the selected index
        if (!m_xIndexList->get_selected(xSelected.get()))
            xSelected.reset();

        OSL_ENSURE(xSelected && m_xPreviousSelection && xSelected->equal(*m_xPreviousSelection), "DbaIndexDialog::OnCloseDialog: inconsistence!");

        sal_Int32 nResponse = RET_NO;
        if (xSelected)
        {
            // the descriptor
            Indexes::const_iterator aSelected = m_xIndexes->begin() + m_xIndexList->get_id(*xSelected).toUInt32();
            if (aSelected->isModified() || aSelected->isNew())
            {
                std::unique_ptr<weld::Builder> xBuilder(Application::CreateBuilder(m_xDialog.get(), "dbaccess/ui/saveindexdialog.ui"));
                std::unique_ptr<weld::MessageDialog> xQuery(xBuilder->weld_message_dialog("SaveIndexDialog"));
                nResponse = xQuery->run();
            }
        }

        switch (nResponse)
        {
            case RET_YES:
                if (!implCommitPreviouslySelected())
                    return;
                break;
            case RET_NO:
                break;
            default:
                return;
        }

        m_xDialog->response(RET_OK);
    }

    IMPL_LINK(DbaIndexDialog, OnEditIndexAgain, void*, p, void)
    {
        weld::TreeIter* pEntry = static_cast<weld::TreeIter*>(p);
        m_bEditAgain = false;
        m_xIndexList->grab_focus();
        m_xIndexList->start_editing(*pEntry);
        delete pEntry;
    }

    IMPL_LINK_NOARG(DbaIndexDialog, OnEntryEditing, const weld::TreeIter&, bool)
    {
        m_bEditingActive = true;
        return true;
    }

    IMPL_LINK(DbaIndexDialog, OnEntryEdited, const IterString&, rIterString, bool)
    {
        m_bEditingActive = false;

        const weld::TreeIter& rEntry = rIterString.first;
        OUString sNewName = rIterString.second;

        Indexes::iterator aPosition = m_xIndexes->begin() + m_xIndexList->get_id(rEntry).toUInt32();

        OSL_ENSURE(aPosition >= m_xIndexes->begin() && aPosition < m_xIndexes->end(),
            "DbaIndexDialog::OnEntryEdited: invalid entry!");

        Indexes::const_iterator aSameName = m_xIndexes->find(sNewName);
        if (aSameName != aPosition && m_xIndexes->end() != aSameName)
        {
            OUString sError(DBA_RES(STR_INDEX_NAME_ALREADY_USED));
            sError = sError.replaceFirst("$name$", sNewName);
            std::unique_ptr<weld::MessageDialog> xError(Application::CreateMessageDialog(m_xDialog.get(),
                                                        VclMessageType::Warning, VclButtonsType::Ok,
                                                        sError));
            xError->run();

            updateToolbox();
            m_bEditAgain = true;
            std::unique_ptr<weld::TreeIter> xEntry(m_xIndexList->make_iterator(&rEntry));
            Application::PostUserEvent(LINK(this, DbaIndexDialog, OnEditIndexAgain), xEntry.release());
            return false;
        }

        aPosition->sName = sNewName;

        // rename can be done by a drop/insert combination only
        if (aPosition->isNew())
        {
            updateToolbox();
            // no commitment needed here...
            return true;
        }

        if (aPosition->sName != aPosition->getOriginalName())
        {
            aPosition->setModified(true);
            updateToolbox();
        }

        return true;
    }

    bool DbaIndexDialog::implSaveModified(bool _bPlausibility)
    {
        if (!m_xPreviousSelection)
            return true;

        // try to commit the previously selected index
        if (m_xFields->IsModified() && !m_xFields->SaveModified())
            return false;

        Indexes::iterator aPreviouslySelected = m_xIndexes->begin() + m_xIndexList->get_id(*m_xPreviousSelection).toUInt32();

        // the unique flag
        aPreviouslySelected->bUnique = m_xUnique->get_active();
        if (m_xUnique->get_state_changed_from_saved())
            aPreviouslySelected->setModified(true);

        // the fields
        m_xFields->commitTo(aPreviouslySelected->aFields);
        if (m_xFields->GetSavedValue() != aPreviouslySelected->aFields)
            aPreviouslySelected->setModified(true);

        // plausibility checks
        if (_bPlausibility && !implCheckPlausibility(aPreviouslySelected))
            return false;

        return true;
    }

    bool DbaIndexDialog::implCheckPlausibility(const Indexes::const_iterator& _rPos)
    {
        // need at least one field
        if (_rPos->aFields.empty())
        {
            std::unique_ptr<weld::MessageDialog> xError(Application::CreateMessageDialog(m_xDialog.get(),
                                                        VclMessageType::Warning, VclButtonsType::Ok,
                                                        DBA_RES(STR_NEED_INDEX_FIELDS)));
            xError->run();
            m_xFields->GrabFocus();
            return false;
        }

        // no double fields
        std::set< OUString > aExistentFields;
        for (auto const& fieldCheck : _rPos->aFields)
        {
            if (aExistentFields.end() != aExistentFields.find(fieldCheck.sFieldName))
            {
                // a column is specified twice ... won't work anyway, so prevent this here and now
                OUString sMessage(DBA_RES(STR_INDEXDESIGN_DOUBLE_COLUMN_NAME));
                sMessage = sMessage.replaceFirst("$name$", fieldCheck.sFieldName);
                std::unique_ptr<weld::MessageDialog> xError(Application::CreateMessageDialog(m_xDialog.get(),
                                                            VclMessageType::Warning, VclButtonsType::Ok,
                                                            sMessage));
                xError->run();
                m_xFields->GrabFocus();
                return false;
            }
            aExistentFields.insert(fieldCheck.sFieldName);
        }

        return true;
    }

    bool DbaIndexDialog::implCommitPreviouslySelected()
    {
        if (m_xPreviousSelection)
        {
            Indexes::const_iterator aPreviouslySelected = m_xIndexes->begin() + m_xIndexList->get_id(*m_xPreviousSelection).toUInt32();

            if (!implSaveModified())
                return false;

            // commit the index (if necessary)
            if (aPreviouslySelected->isModified() && !implCommit(m_xPreviousSelection.get()))
                return false;
        }

        return true;
    }

    IMPL_LINK_NOARG(DbaIndexDialog, OnModifiedClick, weld::Toggleable&, void)
    {
        OnModified(*m_xFields);
    }

    IMPL_LINK_NOARG( DbaIndexDialog, OnModified, IndexFieldsControl&, void )
    {
        assert(m_xPreviousSelection && "DbaIndexDialog, OnModified: invalid call!");
        Indexes::iterator aPosition = m_xIndexes->begin() + m_xIndexList->get_id(*m_xPreviousSelection).toUInt32();

        aPosition->setModified(true);
        updateToolbox();
    }

    void DbaIndexDialog::updateControls(const weld::TreeIter* pEntry)
    {
        if (pEntry)
        {
            // the descriptor of the selected index
            Indexes::const_iterator aSelectedIndex = m_xIndexes->begin() + m_xIndexList->get_id(*pEntry).toUInt32();

            // fill the controls
            m_xUnique->set_active(aSelectedIndex->bUnique);
            m_xUnique->set_sensitive(!aSelectedIndex->bPrimaryKey);
            m_xUnique->save_state();

            m_xFields->initializeFrom(std::vector(aSelectedIndex->aFields));
            m_xFields->Enable(!aSelectedIndex->bPrimaryKey);
            m_xFields->SaveValue();

            m_xDescription->set_label(aSelectedIndex->sDescription);
            m_xDescription->set_sensitive(!aSelectedIndex->bPrimaryKey);

            m_xDescriptionLabel->set_sensitive(!aSelectedIndex->bPrimaryKey);
        }
        else
        {
            m_xUnique->set_active(false);
            m_xFields->initializeFrom(IndexFields());
            m_xDescription->set_label(OUString());
        }
    }

    void DbaIndexDialog::IndexSelected()
    {
        if (m_bEditingActive)
            m_xIndexList->end_editing();

        std::unique_ptr<weld::TreeIter> xSelected(m_xIndexList->make_iterator());
        if (!m_xIndexList->get_selected(xSelected.get()))
            xSelected.reset();

        // commit the old data
        if (m_xPreviousSelection && (!xSelected || !m_xPreviousSelection->equal(*xSelected)))
        {
            // (this call may happen in case somebody ended an in-place edit with 'return', so we need to check this before committing)
            if (!implCommitPreviouslySelected())
            {
                m_bNoHandlerCall = true;
                m_xIndexList->select(*m_xPreviousSelection);
                m_bNoHandlerCall = false;
                return;
            }
        }

        // disable/enable the detail controls
        m_xIndexDetails->set_sensitive(xSelected != nullptr);
        m_xUnique->set_sensitive(xSelected != nullptr);
        m_xDescriptionLabel->set_sensitive(xSelected != nullptr);
        m_xFieldsLabel->set_sensitive(xSelected != nullptr);
        m_xFields->Enable(xSelected != nullptr);

        updateControls(xSelected.get());
        if (xSelected)
            m_xIndexList->grab_focus();

        m_xPreviousSelection = std::move(xSelected);

        updateToolbox();
    }

    IMPL_LINK_NOARG(DbaIndexDialog, OnIndexSelected, weld::TreeView&, void)
    {
        if (m_bNoHandlerCall)
            return;
        IndexSelected();
    }
}   // namespace dbaui

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */