src/frontends/qt4/GuiCitation.cpp

   1
   2 /**
   3  * \file GuiCitation.cpp
   4  * This file is part of LyX, the document processor.
   5  * Licence details can be found in the file COPYING.
   6  *
   7  * \author Angus Leeming
   8  * \author Kalle Dalheimer
   9  * \author Abdelrazak Younes
  10  * \author Richard Heck
  11  *
  12  * Full author contact details are available in file CREDITS.
  13  */
  14
  15 #include <config.h>
  16
  17 #include "GuiCitation.h"
  18
  19 #include "GuiSelectionManager.h"
  20 #include "qt_helpers.h"
  21
  22 #include "Buffer.h"
  23 #include "BufferView.h"
  24 #include "BiblioInfo.h"
  25 #include "BufferParams.h"
  26 #include "FuncRequest.h"
  27
  28 #include "insets/InsetCommand.h"
  29
  30 #include "support/debug.h"
  31 #include "support/docstring.h"
  32 #include "support/gettext.h"
  33 #include "support/lstrings.h"
  34
  35 #include <QCloseEvent>
  36 #include <QSettings>
  37 #include <QShowEvent>
  38 #include <QVariant>
  39
  40 #include <vector>
  41 #include <string>
  42
  43 #undef KeyPress
  44
  45 #include "support/regex.h"
  46
  47 #include <algorithm>
  48 #include <string>
  49 #include <vector>
  50
  51 using namespace std;
  52 using namespace lyx::support;
  53
  54 namespace lyx {
  55 namespace frontend {
  56
  57 static vector<CiteStyle> citeStyles_;
  58
  59
  60 template<typename String>
  61 static QStringList to_qstring_list(vector<String> const & v)
  62 {
  63         QStringList qlist;
  64
  65         for (size_t i = 0; i != v.size(); ++i) {
  66                 if (v[i].empty())
  67                         continue;
  68                 qlist.append(lyx::toqstr(v[i]));
  69         }
  70         return qlist;
  71 }
  72
  73
  74 static vector<lyx::docstring> to_docstring_vector(QStringList const & qlist)
  75 {
  76         vector<lyx::docstring> v;
  77         for (int i = 0; i != qlist.size(); ++i) {
  78                 if (qlist[i].isEmpty())
  79                         continue;
  80                 v.push_back(lyx::qstring_to_ucs4(qlist[i]));
  81         }
  82         return v;
  83 }
  84
  85
  86 GuiCitation::GuiCitation(GuiView & lv)
  87         : DialogView(lv, "citation", qt_("Citation")),
  88           params_(insetCode("citation"))
  89 {
  90         setupUi(this);
  91
  92         connect(citationStyleCO, SIGNAL(activated(int)),
  93                 this, SLOT(on_citationStyleCO_currentIndexChanged(int)));
  94         connect(fulllistCB, SIGNAL(clicked()),
  95                 this, SLOT(changed()));
  96         connect(forceuppercaseCB, SIGNAL(clicked()),
  97                 this, SLOT(changed()));
  98         connect(textBeforeED, SIGNAL(textChanged(QString)),
  99                 this, SLOT(changed()));
 100         connect(textAfterED, SIGNAL(textChanged(QString)),
 101                 this, SLOT(changed()));
 102         connect(findLE, SIGNAL(returnPressed()),
 103                 this, SLOT(on_searchPB_clicked()));
 104         connect(textBeforeED, SIGNAL(returnPressed()),
 105                 this, SLOT(on_okPB_clicked()));
 106         connect(textAfterED, SIGNAL(returnPressed()),
 107                 this, SLOT(on_okPB_clicked()));
 108
 109         selectionManager = new GuiSelectionManager(availableLV, selectedLV,
 110                         addPB, deletePB, upPB, downPB, &available_model_, &selected_model_);
 111         connect(selectionManager, SIGNAL(selectionChanged()),
 112                 this, SLOT(setCitedKeys()));
 113         connect(selectionManager, SIGNAL(updateHook()),
 114                 this, SLOT(updateControls()));
 115         connect(selectionManager, SIGNAL(okHook()),
 116                 this, SLOT(on_okPB_clicked()));
 117
 118         setFocusProxy(availableLV);
 119 }
 120
 121
 122 GuiCitation::~GuiCitation()
 123 {
 124         delete selectionManager;
 125 }
 126
 127
 128 void GuiCitation::closeEvent(QCloseEvent * e)
 129 {
 130         clearSelection();
 131         DialogView::closeEvent(e);
 132 }
 133
 134
 135 void GuiCitation::applyView()
 136 {
 137         int const choice = max(0, citationStyleCO->currentIndex());
 138         style_ = choice;
 139         bool const full  = fulllistCB->isChecked();
 140         bool const force = forceuppercaseCB->isChecked();
 141
 142         QString const before = textBeforeED->text();
 143         QString const after = textAfterED->text();
 144
 145         apply(choice, full, force, before, after);
 146 }
 147
 148
 149 void GuiCitation::showEvent(QShowEvent * e)
 150 {
 151         findLE->clear();
 152         availableLV->setFocus();
 153         DialogView::showEvent(e);
 154 }
 155
 156
 157 void GuiCitation::on_okPB_clicked()
 158 {
 159         applyView();
 160         clearSelection();
 161         hide();
 162 }
 163
 164
 165 void GuiCitation::on_cancelPB_clicked()
 166 {
 167         clearSelection();
 168         hide();
 169 }
 170
 171
 172 void GuiCitation::on_applyPB_clicked()
 173 {
 174         applyView();
 175 }
 176
 177
 178 void GuiCitation::on_restorePB_clicked()
 179 {
 180         init();
 181 }
 182
 183
 184 void GuiCitation::updateControls()
 185 {
 186         BiblioInfo const & bi = bibInfo();
 187         updateControls(bi);
 188 }
 189
 190
 191 // The main point of separating this out is that the fill*() methods
 192 // called in update() do not need to be called for INTERNAL updates,
 193 // such as when addPB is pressed, as the list of fields, entries, etc,
 194 // will not have changed. At the moment, however, the division between
 195 // fillStyles() and updateStyle() doesn't lend itself to dividing the
 196 // two methods, though they should be divisible. That is, we should
 197 // not have to call fillStyles() every time through here.
 198 void GuiCitation::updateControls(BiblioInfo const & bi)
 199 {
 200         QModelIndex idx = selectionManager->getSelectedIndex();
 201         updateInfo(bi, idx);
 202         setButtons();
 203
 204         textBeforeED->setText(toqstr(params_["before"]));
 205         textAfterED->setText(toqstr(params_["after"]));
 206         fillStyles(bi);
 207         updateStyle();
 208 }
 209
 210
 211 void GuiCitation::updateFormatting(CiteStyle currentStyle)
 212 {
 213         CiteEngine const engine = citeEngine();
 214         bool const natbib_engine = engine == ENGINE_NATBIB;
 215         bool const basic_engine = engine == ENGINE_BASIC;
 216
 217         bool const haveSelection =
 218                 selectedLV->model()->rowCount() > 0;
 219
 220         bool const isNocite = currentStyle == NOCITE;
 221
 222         bool const isCiteyear =
 223                 currentStyle == CITEYEAR ||
 224                 currentStyle == CITEYEARPAR;
 225
 226         fulllistCB->setEnabled(natbib_engine && haveSelection && !isNocite
 227                 && !isCiteyear);
 228         forceuppercaseCB->setEnabled(natbib_engine && haveSelection
 229                 && !isNocite && !isCiteyear);
 230         textBeforeED->setEnabled(!basic_engine && haveSelection && !isNocite);
 231         textBeforeLA->setEnabled(!basic_engine && haveSelection && !isNocite);
 232         textAfterED->setEnabled(haveSelection && !isNocite);
 233         textAfterLA->setEnabled(haveSelection && !isNocite);
 234         citationStyleCO->setEnabled(haveSelection);
 235         citationStyleLA->setEnabled(haveSelection);
 236 }
 237
 238
 239 void GuiCitation::updateStyle()
 240 {
 241         string const & command = params_.getCmdName();
 242
 243         // Find the style of the citekeys
 244         vector<CiteStyle> const & styles = citeStyles_;
 245         CitationStyle const cs = citationStyleFromString(command);
 246
 247         vector<CiteStyle>::const_iterator cit =
 248                 std::find(styles.begin(), styles.end(), cs.style);
 249
 250         if (cit != styles.end()) {
 251                 fulllistCB->setChecked(cs.full);
 252                 forceuppercaseCB->setChecked(cs.forceUpperCase);
 253         } else {
 254                 // restore the last used natbib style
 255                 if (style_ >= 0 && style_ < citationStyleCO->count()) {
 256                         // the necessary update will be performed later
 257                         citationStyleCO->blockSignals(true);
 258                         citationStyleCO->setCurrentIndex(style_);
 259                         citationStyleCO->blockSignals(false);
 260                 }
 261                 fulllistCB->setChecked(false);
 262                 forceuppercaseCB->setChecked(false);
 263         }
 264         updateFormatting(cs.style);
 265 }
 266
 267
 268 // This one needs to be called whenever citationStyleCO needs
 269 // to be updated---and this would be on anything that changes the
 270 // selection in selectedLV, or on a general update.
 271 void GuiCitation::fillStyles(BiblioInfo const & bi)
 272 {
 273         QStringList selected_keys = selected_model_.stringList();
 274         int curr = selectedLV->model()->rowCount() - 1;
 275
 276         if (curr < 0 || selected_keys.empty()) {
 277                 citationStyleCO->clear();
 278                 citationStyleCO->setEnabled(false);
 279                 citationStyleLA->setEnabled(false);
 280                 return;
 281         }
 282
 283         if (!selectedLV->selectionModel()->selectedIndexes().empty())
 284                 curr = selectedLV->selectionModel()->selectedIndexes()[0].row();
 285
 286         QStringList sty = citationStyles(bi, curr);
 287
 288         if (sty.isEmpty()) {
 289                 // some error
 290                 citationStyleCO->setEnabled(false);
 291                 citationStyleLA->setEnabled(false);
 292                 citationStyleCO->clear();
 293                 return;
 294         }
 295
 296         citationStyleCO->blockSignals(true);
 297
 298         // save old index
 299         int const oldIndex = citationStyleCO->currentIndex();
 300         citationStyleCO->clear();
 301         citationStyleCO->insertItems(0, sty);
 302         citationStyleCO->setEnabled(true);
 303         citationStyleLA->setEnabled(true);
 304         // restore old index
 305         if (oldIndex != -1 && oldIndex < citationStyleCO->count())
 306                 citationStyleCO->setCurrentIndex(oldIndex);
 307
 308         citationStyleCO->blockSignals(false);
 309 }
 310
 311
 312 void GuiCitation::fillFields(BiblioInfo const & bi)
 313 {
 314         fieldsCO->blockSignals(true);
 315         int const oldIndex = fieldsCO->currentIndex();
 316         fieldsCO->clear();
 317         QStringList const fields = to_qstring_list(bi.getFields());
 318         fieldsCO->insertItem(0, qt_("All fields"));
 319         fieldsCO->insertItem(1, qt_("Keys"));
 320         fieldsCO->insertItems(2, fields);
 321         if (oldIndex != -1 && oldIndex < fieldsCO->count())
 322                 fieldsCO->setCurrentIndex(oldIndex);
 323         fieldsCO->blockSignals(false);
 324 }
 325
 326
 327 void GuiCitation::fillEntries(BiblioInfo const & bi)
 328 {
 329         entriesCO->blockSignals(true);
 330         int const oldIndex = entriesCO->currentIndex();
 331         entriesCO->clear();
 332         QStringList const entries = to_qstring_list(bi.getEntries());
 333         entriesCO->insertItem(0, qt_("All entry types"));
 334         entriesCO->insertItems(1, entries);
 335         if (oldIndex != -1 && oldIndex < entriesCO->count())
 336                 entriesCO->setCurrentIndex(oldIndex);
 337         entriesCO->blockSignals(false);
 338 }
 339
 340
 341 bool GuiCitation::isSelected(QModelIndex const & idx)
 342 {
 343         QString const str = idx.data().toString();
 344         return selected_model_.stringList().contains(str);
 345 }
 346
 347
 348 void GuiCitation::setButtons()
 349 {
 350         selectionManager->update();
 351         int const srows = selectedLV->model()->rowCount();
 352         applyPB->setEnabled(srows > 0);
 353         okPB->setEnabled(srows > 0);
 354 }
 355
 356
 357 void GuiCitation::updateInfo(BiblioInfo const & bi, QModelIndex const & idx)
 358 {
 359         if (!idx.isValid() || bi.empty()) {
 360                 infoML->document()->clear();
 361                 return;
 362         }
 363
 364         QString const keytxt = toqstr(
 365                 bi.getInfo(qstring_to_ucs4(idx.data().toString()), documentBuffer(), true));
 366         infoML->document()->setHtml(keytxt);
 367 }
 368
 369
 370 void GuiCitation::findText(QString const & text, bool reset)
 371 {
 372         //"All Fields" and "Keys" are the first two
 373         int index = fieldsCO->currentIndex() - 2;
 374         BiblioInfo const & bi = bibInfo();
 375         vector<docstring> const & fields = bi.getFields();
 376         docstring field;
 377
 378         if (index <= -1 || index >= int(fields.size()))
 379                 //either "All Fields" or "Keys" or an invalid value
 380                 field = from_ascii("");
 381         else
 382                 field = fields[index];
 383
 384         //Was it "Keys"?
 385         bool const onlyKeys = index == -1;
 386
 387         //"All Entry Types" is first.
 388         index = entriesCO->currentIndex() - 1;
 389         vector<docstring> const & entries = bi.getEntries();
 390         docstring entry_type;
 391         if (index < 0 || index >= int(entries.size()))
 392                 entry_type = from_ascii("");
 393         else
 394                 entry_type = entries[index];
 395
 396         bool const case_sentitive = caseCB->checkState();
 397         bool const reg_exp = regexCB->checkState();
 398         findKey(bi, text, onlyKeys, field, entry_type,
 399                        case_sentitive, reg_exp, reset);
 400         //FIXME
 401         //It'd be nice to save and restore the current selection in
 402         //availableLV. Currently, we get an automatic reset, since the
 403         //model is reset.
 404
 405         updateControls(bi);
 406 }
 407
 408
 409 void GuiCitation::on_fieldsCO_currentIndexChanged(int /*index*/)
 410 {
 411         findText(findLE->text(), true);
 412 }
 413
 414
 415 void GuiCitation::on_entriesCO_currentIndexChanged(int /*index*/)
 416 {
 417         findText(findLE->text(), true);
 418 }
 419
 420
 421 void GuiCitation::on_citationStyleCO_currentIndexChanged(int index)
 422 {
 423         if (index >= 0 && index < citationStyleCO->count()) {
 424                 vector<CiteStyle> const & styles = citeStyles_;
 425                 updateFormatting(styles[index]);
 426         }
 427 }
 428
 429
 430 void GuiCitation::on_findLE_textChanged(const QString & text)
 431 {
 432         bool const searchAsWeGo = (asTypeCB->checkState() == Qt::Checked);
 433         searchPB->setDisabled(text.isEmpty() || searchAsWeGo);
 434         if (!text.isEmpty()) {
 435                 if (searchAsWeGo)
 436                         findText(findLE->text());
 437                 return;
 438         }
 439         findText(findLE->text());
 440         findLE->setFocus();
 441 }
 442
 443 void GuiCitation::on_searchPB_clicked()
 444 {
 445         findText(findLE->text(), true);
 446 }
 447
 448
 449 void GuiCitation::on_caseCB_stateChanged(int)
 450 {
 451         findText(findLE->text());
 452 }
 453
 454
 455 void GuiCitation::on_regexCB_stateChanged(int)
 456 {
 457         findText(findLE->text());
 458 }
 459
 460
 461 void GuiCitation::on_asTypeCB_stateChanged(int)
 462 {
 463         bool const searchAsWeGo = (asTypeCB->checkState() == Qt::Checked);
 464         searchPB->setDisabled(findLE->text().isEmpty() || searchAsWeGo);
 465         if (searchAsWeGo)
 466                 findText(findLE->text(), true);
 467 }
 468
 469
 470 void GuiCitation::changed()
 471 {
 472         setButtons();
 473 }
 474
 475
 476 void GuiCitation::apply(int const choice, bool full, bool force,
 477         QString before, QString after)
 478 {
 479         if (cited_keys_.isEmpty())
 480                 return;
 481
 482         vector<CiteStyle> const & styles = citeStyles_;
 483         if (styles[choice] == NOCITE) {
 484                 full = false;
 485                 force = false;
 486                 before.clear();
 487                 after.clear();
 488         }
 489
 490         CitationStyle s;
 491         s.style = styles[choice];
 492         s.full = full;
 493         s.forceUpperCase = force;
 494         string const command = citationStyleToString(s);
 495
 496         params_.setCmdName(command);
 497         params_["key"] = qstring_to_ucs4(cited_keys_.join(","));
 498         params_["before"] = qstring_to_ucs4(before);
 499         params_["after"] = qstring_to_ucs4(after);
 500         dispatchParams();
 501 }
 502
 503
 504 void GuiCitation::clearSelection()
 505 {
 506         cited_keys_.clear();
 507         selected_model_.setStringList(cited_keys_);
 508 }
 509
 510
 511 void GuiCitation::init()
 512 {
 513         // Make the list of all available bibliography keys
 514         BiblioInfo const & bi = bibInfo();
 515         all_keys_ = to_qstring_list(bi.getKeys());
 516         available_model_.setStringList(all_keys_);
 517
 518         // Ditto for the keys cited in this inset
 519         QString str = toqstr(params_["key"]);
 520         if (str.isEmpty())
 521                 cited_keys_.clear();
 522         else
 523                 cited_keys_ = str.split(",");
 524         selected_model_.setStringList(cited_keys_);
 525         if (selected_model_.rowCount()) {
 526                 selectedLV->blockSignals(true);
 527                 selectedLV->setFocus();
 528                 QModelIndex idx = selected_model_.index(0, 0);
 529                 selectedLV->selectionModel()->select(idx,
 530                                 QItemSelectionModel::ClearAndSelect);
 531                 selectedLV->blockSignals(false);
 532
 533                 // set the style combo appropriately
 534                 string const & command = params_.getCmdName();
 535                 vector<CiteStyle> const & styles = citeStyles_;
 536                 CitationStyle const cs = citationStyleFromString(command);
 537
 538                 vector<CiteStyle>::const_iterator cit =
 539                         std::find(styles.begin(), styles.end(), cs.style);
 540                 if (cit != styles.end()) {
 541                         int const i = int(cit - styles.begin());
 542                         // the necessary update will be performed later
 543                         citationStyleCO->blockSignals(true);
 544                         citationStyleCO->setCurrentIndex(i);
 545                         citationStyleCO->blockSignals(false);
 546                 }
 547         } else
 548                 availableLV->setFocus();
 549         fillFields(bi);
 550         fillEntries(bi);
 551         updateControls(bi);
 552 }
 553
 554
 555 void GuiCitation::findKey(BiblioInfo const & bi,
 556         QString const & str, bool only_keys,
 557         docstring field, docstring entry_type,
 558         bool case_sensitive, bool reg_exp, bool reset)
 559 {
 560         // Used for optimisation: store last searched string.
 561         static QString last_searched_string;
 562         // Used to disable the above optimisation.
 563         static bool last_case_sensitive;
 564         static bool last_reg_exp;
 565         // Reset last_searched_string in case of changed option.
 566         if (last_case_sensitive != case_sensitive
 567                 || last_reg_exp != reg_exp) {
 568                         LYXERR(Debug::GUI, "GuiCitation::findKey: optimisation disabled!");
 569                 last_searched_string.clear();
 570         }
 571         // save option for next search.
 572         last_case_sensitive = case_sensitive;
 573         last_reg_exp = reg_exp;
 574
 575         Qt::CaseSensitivity qtcase = case_sensitive ?
 576                         Qt::CaseSensitive: Qt::CaseInsensitive;
 577         QStringList keys;
 578         // If new string (str) contains the last searched one...
 579         if (!reset &&
 580                 !last_searched_string.isEmpty() &&
 581                 str.size() > 1 &&
 582                 str.contains(last_searched_string, qtcase))
 583                 // ... then only search within already found list.
 584                 keys = available_model_.stringList();
 585         else
 586                 // ... else search all keys.
 587                 keys = all_keys_;
 588         // save searched string for next search.
 589         last_searched_string = str;
 590
 591         QStringList result;
 592
 593         // First, filter by entry_type, which will be faster than
 594         // what follows, so we may get to do that on less.
 595         vector<docstring> keyVector = to_docstring_vector(keys);
 596         filterByEntryType(bi, keyVector, entry_type);
 597
 598         if (str.isEmpty())
 599                 result = to_qstring_list(keyVector);
 600         else
 601                 result = to_qstring_list(searchKeys(bi, keyVector, only_keys,
 602                         qstring_to_ucs4(str), field, case_sensitive, reg_exp));
 603
 604         available_model_.setStringList(result);
 605 }
 606
 607
 608 QStringList GuiCitation::citationStyles(BiblioInfo const & bi, int sel)
 609 {
 610         docstring const key = qstring_to_ucs4(cited_keys_[sel]);
 611         return to_qstring_list(bi.getCiteStrings(key, documentBuffer()));
 612 }
 613
 614
 615 void GuiCitation::setCitedKeys()
 616 {
 617         cited_keys_ = selected_model_.stringList();
 618 }
 619
 620
 621 bool GuiCitation::initialiseParams(string const & data)
 622 {
 623         InsetCommand::string2params(data, params_);
 624         CiteEngine const engine = citeEngine();
 625         CiteEngineType const engine_type = citeEngineType();
 626         citeStyles_ = citeStyles(engine, engine_type);
 627         init();
 628         return true;
 629 }
 630
 631
 632 void GuiCitation::clearParams()
 633 {
 634         params_.clear();
 635 }
 636
 637
 638 void GuiCitation::filterByEntryType(BiblioInfo const & bi,
 639         vector<docstring> & keyVector, docstring entry_type)
 640 {
 641         if (entry_type.empty())
 642                 return;
 643
 644         vector<docstring>::iterator it = keyVector.begin();
 645         vector<docstring>::iterator end = keyVector.end();
 646
 647         vector<docstring> result;
 648         for (; it != end; ++it) {
 649                 docstring const key = *it;
 650                 BiblioInfo::const_iterator cit = bi.find(key);
 651                 if (cit == bi.end())
 652                         continue;
 653                 if (cit->second.entryType() == entry_type)
 654                         result.push_back(key);
 655         }
 656         keyVector = result;
 657 }
 658
 659
 660 CiteEngine GuiCitation::citeEngine() const
 661 {
 662         return documentBuffer().params().citeEngine();
 663 }
 664
 665
 666 CiteEngineType GuiCitation::citeEngineType() const
 667 {
 668         return documentBuffer().params().citeEngineType();
 669 }
 670
 671
 672 // Escape special chars.
 673 // All characters are literals except: '.|*?+(){}[]^$\'
 674 // These characters are literals when preceded by a "\", which is done here
 675 // @todo: This function should be moved to support, and then the test in tests
 676 //        should be moved there as well.
 677 static docstring escape_special_chars(docstring const & expr)
 678 {
 679         // Search for all chars '.|*?+(){}[^$]\'
 680         // Note that '[' and '\' must be escaped.
 681         // This is a limitation of lyx::regex, but all other chars in BREs
 682         // are assumed literal.
 683         static const lyx::regex reg("[].|*?+(){}^$\\[\\\\]");
 684
 685         // $& is a perl-like expression that expands to all
 686         // of the current match
 687         // The '$' must be prefixed with the escape character '\' for
 688         // boost to treat it as a literal.
 689         // Thus, to prefix a matched expression with '\', we use:
 690         // FIXME: UNICODE
 691         return from_utf8(lyx::regex_replace(to_utf8(expr), reg, string("\\\\$&")));
 692 }
 693
 694
 695 vector<docstring> GuiCitation::searchKeys(BiblioInfo const & bi,
 696         vector<docstring> const & keys_to_search, bool only_keys,
 697         docstring const & search_expression, docstring field,
 698         bool case_sensitive, bool regex)
 699 {
 700         vector<docstring> foundKeys;
 701
 702         docstring expr = trim(search_expression);
 703         if (expr.empty())
 704                 return foundKeys;
 705
 706         if (!regex)
 707                 // We must escape special chars in the search_expr so that
 708                 // it is treated as a simple string by lyx::regex.
 709                 expr = escape_special_chars(expr);
 710
 711         lyx::regex reg_exp;
 712         try {
 713                 reg_exp.assign(to_utf8(expr), case_sensitive ?
 714                         lyx::regex_constants::ECMAScript : lyx::regex_constants::icase);
 715         } catch (lyx::regex_error & e) {
 716                 // lyx::regex throws an exception if the regular expression is not
 717                 // valid.
 718                 LYXERR(Debug::GUI, e.what());
 719                 return vector<docstring>();
 720         }
 721
 722         vector<docstring>::const_iterator it = keys_to_search.begin();
 723         vector<docstring>::const_iterator end = keys_to_search.end();
 724         for (; it != end; ++it ) {
 725                 BiblioInfo::const_iterator info = bi.find(*it);
 726                 if (info == bi.end())
 727                         continue;
 728
 729                 BibTeXInfo const & kvm = info->second;
 730                 string data;
 731                 if (only_keys)
 732                         data = to_utf8(*it);
 733                 else if (field.empty())
 734                         data = to_utf8(*it) + ' ' + to_utf8(kvm.allData());
 735                 else
 736                         data = to_utf8(kvm[field]);
 737
 738                 if (data.empty())
 739                         continue;
 740
 741                 try {
 742                         if (lyx::regex_search(data, reg_exp))
 743                                 foundKeys.push_back(*it);
 744                 }
 745                 catch (lyx::regex_error & e) {
 746                         LYXERR(Debug::GUI, e.what());
 747                         return vector<docstring>();
 748                 }
 749         }
 750         return foundKeys;
 751 }
 752
 753
 754 void GuiCitation::dispatchParams()
 755 {
 756         std::string const lfun = InsetCommand::params2string(params_);
 757         dispatch(FuncRequest(getLfun(), lfun));
 758 }
 759
 760
 761 BiblioInfo const & GuiCitation::bibInfo() const
 762 {
 763         Buffer const & buf = documentBuffer();
 764         buf.reloadBibInfoCache();
 765         return buf.masterBibInfo();
 766 }
 767
 768
 769 void GuiCitation::saveSession() const
 770 {
 771         Dialog::saveSession();
 772         QSettings settings;
 773         settings.setValue(
 774                 sessionKey() + "/regex", regexCB->isChecked());
 775         settings.setValue(
 776                 sessionKey() + "/casesensitive", caseCB->isChecked());
 777         settings.setValue(
 778                 sessionKey() + "/autofind", asTypeCB->isChecked());
 779 }
 780
 781
 782 void GuiCitation::restoreSession()
 783 {
 784         Dialog::restoreSession();
 785         QSettings settings;
 786         regexCB->setChecked(
 787                 settings.value(sessionKey() + "/regex").toBool());
 788         caseCB->setChecked(
 789                 settings.value(sessionKey() + "/casesensitive").toBool());
 790         asTypeCB->setChecked(
 791                 settings.value(sessionKey() + "/autofind").toBool());
 792 }
 793
 794
 795 Dialog * createGuiCitation(GuiView & lv) { return new GuiCitation(lv); }
 796
 797
 798 } // namespace frontend
 799 } // namespace lyx
 800
 801 #include "moc_GuiCitation.cpp"
 802