src/frontends/qt4/FindAndReplace.cpp

   1 /**
   2  * \file FindAndReplace.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Tommaso Cucinotta
   7  *
   8  * Full author contact details are available in file CREDITS.
   9  */
  10
  11 #include <config.h>
  12
  13 #include "FindAndReplace.h"
  14
  15 #include "Lexer.h"
  16 #include "GuiApplication.h"
  17 #include "GuiView.h"
  18 #include "GuiWorkArea.h"
  19 #include "qt_helpers.h"
  20 #include "Language.h"
  21
  22 #include "buffer_funcs.h"
  23 #include "BufferParams.h"
  24 #include "BufferList.h"
  25 #include "Cursor.h"
  26 #include "FuncRequest.h"
  27 #include "lyxfind.h"
  28 #include "output_latex.h"
  29 #include "OutputParams.h"
  30 #include "TexRow.h"
  31
  32 #include "frontends/alert.h"
  33
  34 #include "support/debug.h"
  35 #include "support/filetools.h"
  36 #include "support/FileName.h"
  37 #include "support/gettext.h"
  38 #include "support/lassert.h"
  39 #include "support/lstrings.h"
  40
  41 #include <QCloseEvent>
  42 #include <QLineEdit>
  43 #include <QMenu>
  44
  45 #include <iostream>
  46
  47 using namespace std;
  48 using namespace lyx::support;
  49
  50 namespace lyx {
  51 namespace frontend {
  52
  53
  54 /// Apply to buf the parameters supplied through bp
  55 static void ApplyParams(Buffer &buf, BufferParams const & bp) {
  56         ostringstream ss;
  57         ss << "\\begin_header\n";
  58         bp.writeFile(ss);
  59         ss << "\\end_header\n";
  60         istringstream iss(ss.str());
  61         Lexer lex;
  62         lex.setStream(iss);
  63         int unknown_tokens = buf.readHeader(lex);
  64         LASSERT(unknown_tokens == 0, /* */);
  65 }
  66
  67
  68 FindAndReplaceWidget::FindAndReplaceWidget(GuiView & view)
  69         :       view_(view)
  70 {
  71         setupUi(this);
  72         find_work_area_->setGuiView(view_);
  73         find_work_area_->init();
  74         find_work_area_->setFrameStyle(QFrame::StyledPanel);
  75
  76         setFocusProxy(find_work_area_);
  77         replace_work_area_->setGuiView(view_);
  78         replace_work_area_->init();
  79         replace_work_area_->setFrameStyle(QFrame::StyledPanel);
  80
  81         // We don't want two cursors blinking.
  82         replace_work_area_->stopBlinkingCursor();
  83 }
  84
  85
  86 bool FindAndReplaceWidget::eventFilter(QObject * obj, QEvent * event)
  87 {
  88         if (event->type() != QEvent::KeyPress
  89                   || (obj != find_work_area_ && obj != replace_work_area_))
  90                 return QWidget::eventFilter(obj, event);
  91
  92         QKeyEvent * e = static_cast<QKeyEvent *> (event);
  93         switch (e->key()) {
  94         case Qt::Key_Escape:
  95                 if (e->modifiers() == Qt::NoModifier) {
  96                         hideDialog();
  97                         return true;
  98                 }
  99                 break;
 100
 101         case Qt::Key_Enter:
 102         case Qt::Key_Return: {
 103                 // with shift we (temporarily) change search/replace direction
 104                 bool const searchback = searchbackCB->isChecked();
 105                 if (e->modifiers() == Qt::ShiftModifier && !searchback)
 106                         searchbackCB->setChecked(!searchback);
 107
 108                 if (obj == find_work_area_)
 109                         on_findNextPB_clicked();
 110                 else
 111                         on_replacePB_clicked();
 112                 // back to how it was
 113                 searchbackCB->setChecked(searchback);
 114                 return true;
 115                 break;
 116                 }
 117         case Qt::Key_Tab:
 118                 if (e->modifiers() == Qt::NoModifier) {
 119                         if (obj == find_work_area_){
 120                                 LYXERR(Debug::FIND, "Focusing replace WA");
 121                                 replace_work_area_->setFocus();
 122                                 return true;
 123                         }
 124                 }
 125                 break;
 126
 127         case Qt::Key_Backtab:
 128                 if (obj == replace_work_area_) {
 129                         LYXERR(Debug::FIND, "Focusing find WA");
 130                         find_work_area_->setFocus();
 131                         return true;
 132                 }
 133                 break;
 134
 135         default:
 136                 break;
 137         }
 138         // standard event processing
 139         return QWidget::eventFilter(obj, event);
 140 }
 141
 142
 143 static docstring buffer_to_latex(Buffer & buffer)
 144 {
 145         OutputParams runparams(&buffer.params().encoding());
 146         odocstringstream os;
 147         runparams.nice = true;
 148         runparams.flavor = OutputParams::LATEX;
 149         runparams.linelen = 80; //lyxrc.plaintext_linelen;
 150         // No side effect of file copying and image conversion
 151         runparams.dryrun = true;
 152         buffer.texrow().reset();
 153         pit_type const endpit = buffer.paragraphs().size();
 154         for (pit_type pit = 0; pit != endpit; ++pit) {
 155                 TeXOnePar(buffer, buffer.text(),
 156                           pit, os, buffer.texrow(), runparams);
 157                 LYXERR(Debug::FIND, "searchString up to here: "
 158                         << os.str());
 159         }
 160         return os.str();
 161 }
 162
 163
 164 static vector<string> const & allManualsFiles()
 165 {
 166         static vector<string> v;
 167         static const char * files[] = {
 168                 "Intro", "UserGuide", "Tutorial", "Additional",
 169                 "EmbeddedObjects", "Math", "Customization", "Shortcuts",
 170                 "LFUNs", "LaTeXConfig"
 171         };
 172         if (v.empty()) {
 173                 FileName fname;
 174                 for (size_t i = 0; i < sizeof(files) / sizeof(files[0]); ++i) {
 175                         fname = i18nLibFileSearch("doc", files[i], "lyx");
 176                         v.push_back(fname.absFileName());
 177                 }
 178         }
 179         return v;
 180 }
 181
 182
 183 /** Switch p_buf to point to next document buffer.
 184  **
 185  ** Return true if restarted from master-document buffer.
 186  **/
 187 static bool nextDocumentBuffer(Buffer * & buf)
 188 {
 189         ListOfBuffers const children = buf->allRelatives();
 190         LYXERR(Debug::FIND, "children.size()=" << children.size());
 191         ListOfBuffers::const_iterator it =
 192                 find(children.begin(), children.end(), buf);
 193         LASSERT(it != children.end(), /**/)
 194         ++it;
 195         if (it == children.end()) {
 196                 buf = *children.begin();
 197                 return true;
 198         }
 199         buf = *it;
 200         return false;
 201 }
 202
 203
 204 /** Switch p_buf to point to previous document buffer.
 205  **
 206  ** Return true if restarted from last child buffer.
 207  **/
 208 static bool prevDocumentBuffer(Buffer * & buf)
 209 {
 210         ListOfBuffers const children = buf->allRelatives();
 211         LYXERR(Debug::FIND, "children.size()=" << children.size());
 212         ListOfBuffers::const_iterator it =
 213                 find(children.begin(), children.end(), buf);
 214         LASSERT(it != children.end(), /**/)
 215         if (it == children.begin()) {
 216                 it = children.end();
 217                 --it;
 218                 buf = *it;
 219                 return true;
 220         }
 221         --it;
 222         buf = *it;
 223         return false;
 224 }
 225
 226
 227 /** Switch buf to point to next or previous buffer in search scope.
 228  **
 229  ** Return true if restarted from scratch.
 230  **/
 231 static bool nextPrevBuffer(Buffer * & buf,
 232                              FindAndReplaceOptions const & opt)
 233 {
 234         bool restarted = false;
 235         switch (opt.scope) {
 236         case FindAndReplaceOptions::S_BUFFER:
 237                 restarted = true;
 238                 break;
 239         case FindAndReplaceOptions::S_DOCUMENT:
 240                 if (opt.forward)
 241                         restarted = nextDocumentBuffer(buf);
 242                 else
 243                         restarted = prevDocumentBuffer(buf);
 244                 break;
 245         case FindAndReplaceOptions::S_OPEN_BUFFERS:
 246                 if (opt.forward) {
 247                         buf = theBufferList().next(buf);
 248                         restarted = (buf == *theBufferList().begin());
 249                 } else {
 250                         buf = theBufferList().previous(buf);
 251                         restarted = (buf == *(theBufferList().end() - 1));
 252                 }
 253                 break;
 254         case FindAndReplaceOptions::S_ALL_MANUALS:
 255                 vector<string> const & manuals = allManualsFiles();
 256                 vector<string>::const_iterator it =
 257                         find(manuals.begin(), manuals.end(), buf->absFileName());
 258                 if (it == manuals.end())
 259                         it = manuals.begin();
 260                 else if (opt.forward) {
 261                         ++it;
 262                         if (it == manuals.end()) {
 263                                 it = manuals.begin();
 264                                 restarted = true;
 265                         }
 266                 } else {
 267                         if (it == manuals.begin()) {
 268                                 it = manuals.end();
 269                                 restarted = true;
 270                         }
 271                         --it;
 272                 }
 273                 FileName const & fname = FileName(*it);
 274                 if (!theBufferList().exists(fname)) {
 275                         guiApp->currentView()->setBusy(false);
 276                         guiApp->currentView()->loadDocument(fname, false);
 277                         guiApp->currentView()->setBusy(true);
 278                 }
 279                 buf = theBufferList().getBuffer(fname);
 280                 break;
 281         }
 282         return restarted;
 283 }
 284
 285
 286 /** Find the finest question message to post to the user */
 287 docstring getQuestionString(FindAndReplaceOptions const & opt)
 288 {
 289         docstring scope;
 290         switch (opt.scope) {
 291         case FindAndReplaceOptions::S_BUFFER:
 292                 scope = _("File");
 293                 break;
 294         case FindAndReplaceOptions::S_DOCUMENT:
 295                 scope = _("Master document");
 296                 break;
 297         case FindAndReplaceOptions::S_OPEN_BUFFERS:
 298                 scope = _("Open files");
 299                 break;
 300         case FindAndReplaceOptions::S_ALL_MANUALS:
 301                 scope = _("Manuals");
 302                 break;
 303         }
 304         docstring message = opt.forward ?
 305                 bformat(_("%1$s: the end was reached while searching forward.\n"
 306                           "Continue searching from the beginning?"),
 307                         scope) :
 308                 bformat(_("%1$s: the beginning was reached while searching backward.\n"
 309                           "Continue searching from the end?"),
 310                         scope);
 311
 312         return message;
 313 }
 314
 315
 316 void FindAndReplaceWidget::findAndReplaceScope(FindAndReplaceOptions & opt)
 317 {
 318         BufferView * bv = view_.documentBufferView();
 319         if (!bv)
 320                 return;
 321         Buffer * buf = &bv->buffer();
 322         Buffer * buf_orig = &bv->buffer();
 323         DocIterator cur_orig(bv->cursor());
 324         int wrap_answer = -1;
 325         ostringstream oss;
 326         oss << opt;
 327         FuncRequest cmd(LFUN_WORD_FINDADV, from_utf8(oss.str()));
 328
 329         view_.setBusy(true);
 330         if (opt.scope == FindAndReplaceOptions::S_ALL_MANUALS) {
 331                 vector<string> const & v = allManualsFiles();
 332                 if (std::find(v.begin(), v.end(), buf->absFileName()) == v.end()) {
 333                         FileName const & fname = FileName(*v.begin());
 334                         if (!theBufferList().exists(fname)) {
 335                                 guiApp->currentView()->setBusy(false);
 336                                 guiApp->currentView()->loadDocument(fname, false);
 337                                 guiApp->currentView()->setBusy(true);
 338                         }
 339                         buf = theBufferList().getBuffer(fname);
 340                         lyx::dispatch(FuncRequest(LFUN_BUFFER_SWITCH,
 341                                                   buf->absFileName()));
 342                         bv = view_.documentBufferView();
 343                         bv->cursor().clear();
 344                         bv->cursor().push_back(CursorSlice(buf->inset()));
 345                 }
 346         }
 347
 348         do {
 349                 LYXERR(Debug::FIND, "Dispatching LFUN_WORD_FINDADV");
 350                 dispatch(cmd);
 351                 LYXERR(Debug::FIND, "dispatched");
 352                 if (bv->cursor().result().dispatched()) {
 353                         // New match found and selected (old selection replaced if needed)
 354                         view_.setBusy(false);
 355                         return;
 356                 }
 357
 358                 // No match found in current buffer (however old selection might have been replaced)
 359                 // select next buffer in scope, if any
 360                 bool prompt = nextPrevBuffer(buf, opt);
 361                 if (prompt) {
 362                         if (wrap_answer != -1)
 363                                 break;
 364                         docstring q = getQuestionString(opt);
 365                         view_.setBusy(false);
 366                         wrap_answer = frontend::Alert::prompt(
 367                                 _("Wrap search?"), q,
 368                                 0, 1, _("&Yes"), _("&No"));
 369                         view_.setBusy(true);
 370                         if (wrap_answer == 1)
 371                                 break;
 372                 }
 373                 if (buf != &view_.documentBufferView()->buffer())
 374                         lyx::dispatch(FuncRequest(LFUN_BUFFER_SWITCH,
 375                                                   buf->absFileName()));
 376                 bv = view_.documentBufferView();
 377                 if (opt.forward) {
 378                         bv->cursor().clear();
 379                         bv->cursor().push_back(CursorSlice(buf->inset()));
 380                 } else {
 381                         //lyx::dispatch(FuncRequest(LFUN_BUFFER_END));
 382                         bv->cursor().setCursor(doc_iterator_end(buf));
 383                         bv->cursor().backwardPos();
 384                         LYXERR(Debug::FIND, "findBackAdv5: cur: "
 385                                 << bv->cursor());
 386                 }
 387                 bv->clearSelection();
 388         } while (wrap_answer != 1);
 389         if (buf_orig != &view_.documentBufferView()->buffer())
 390                 lyx::dispatch(FuncRequest(LFUN_BUFFER_SWITCH,
 391                                           buf_orig->absFileName()));
 392         bv = view_.documentBufferView();
 393         // This may happen after a replace occurred
 394         if (cur_orig.pos() > cur_orig.lastpos())
 395                 cur_orig.pos() = cur_orig.lastpos();
 396         bv->cursor().setCursor(cur_orig);
 397         view_.setBusy(false);
 398 }
 399
 400
 401 void FindAndReplaceWidget::findAndReplace(
 402         bool casesensitive, bool matchword, bool backwards,
 403         bool expandmacros, bool ignoreformat, bool replace,
 404         bool keep_case)
 405 {
 406         Buffer & buffer = find_work_area_->bufferView().buffer();
 407         docstring searchString;
 408         if (!ignoreformat) {
 409                 searchString = buffer_to_latex(buffer);
 410         } else {
 411                 ParIterator it = buffer.par_iterator_begin();
 412                 ParIterator end = buffer.par_iterator_end();
 413                 OutputParams runparams(&buffer.params().encoding());
 414                 odocstringstream os;
 415                 runparams.nice = true;
 416                 runparams.flavor = OutputParams::LATEX;
 417                 runparams.linelen = 100000; //lyxrc.plaintext_linelen;
 418                 runparams.dryrun = true;
 419                 for (; it != end; ++it) {
 420                         LYXERR(Debug::FIND, "Adding to search string: '"
 421                                 << it->asString(false)
 422                                 << "'");
 423                         searchString +=
 424                                 it->stringify(pos_type(0), it->size(),
 425                                               AS_STR_INSETS, runparams);
 426                 }
 427         }
 428         if (to_utf8(searchString).empty()) {
 429                 buffer.message(_("Nothing to search"));
 430                 return;
 431         }
 432         bool const regexp =
 433                 to_utf8(searchString).find("\\regexp") != std::string::npos;
 434         docstring replaceString;
 435         if (replace) {
 436                 Buffer & repl_buffer =
 437                         replace_work_area_->bufferView().buffer();
 438                 ostringstream oss;
 439                 repl_buffer.write(oss);
 440                 //buffer_to_latex(replace_buffer);
 441                 replaceString = from_utf8(oss.str());
 442         } else {
 443                 replaceString = from_utf8(LYX_FR_NULL_STRING);
 444         }
 445         FindAndReplaceOptions::SearchScope scope =
 446                 FindAndReplaceOptions::S_BUFFER;
 447         if (CurrentDocument->isChecked())
 448                 scope = FindAndReplaceOptions::S_BUFFER;
 449         else if (MasterDocument->isChecked())
 450                 scope = FindAndReplaceOptions::S_DOCUMENT;
 451         else if (OpenDocuments->isChecked())
 452                 scope = FindAndReplaceOptions::S_OPEN_BUFFERS;
 453         else if (AllManualsRB->isChecked())
 454                 scope = FindAndReplaceOptions::S_ALL_MANUALS;
 455         else
 456                 LASSERT(false, /**/);
 457         LYXERR(Debug::FIND, "FindAndReplaceOptions: "
 458                << "searchstring=" << searchString
 459                << ", casesensitiv=" << casesensitive
 460                << ", matchword=" << matchword
 461                << ", backwards=" << backwards
 462                << ", expandmacros=" << expandmacros
 463                << ", ignoreformat=" << ignoreformat
 464                << ", regexp=" << regexp
 465                << ", replaceString" << replaceString
 466                << ", keep_case=" << keep_case
 467                << ", scope=" << scope);
 468         FindAndReplaceOptions opt(searchString, casesensitive, matchword,
 469                                   !backwards, expandmacros, ignoreformat,
 470                                   regexp, replaceString, keep_case, scope);
 471         findAndReplaceScope(opt);
 472 }
 473
 474
 475 void FindAndReplaceWidget::findAndReplace(bool backwards, bool replace)
 476 {
 477         if (! view_.currentMainWorkArea()) {
 478                 view_.message(_("No open document(s) in which to search"));
 479                 return;
 480         }
 481         // Finalize macros that are being typed, both in main document and in search or replacement WAs
 482         if (view_.currentWorkArea()->bufferView().cursor().macroModeClose())
 483                 view_.currentWorkArea()->bufferView().processUpdateFlags(Update::Force);
 484         if (view_.currentMainWorkArea()->bufferView().cursor().macroModeClose())
 485                 view_.currentMainWorkArea()->bufferView().processUpdateFlags(Update::Force);
 486
 487         // FIXME: create a Dialog::returnFocus()
 488         // or something instead of this:
 489         view_.setCurrentWorkArea(view_.currentMainWorkArea());
 490         findAndReplace(caseCB->isChecked(),
 491                 wordsCB->isChecked(),
 492                 backwards,
 493                 expandMacrosCB->isChecked(),
 494                 ignoreFormatCB->isChecked(),
 495                 replace,
 496                 keepCaseCB->isChecked());
 497 }
 498
 499
 500 void FindAndReplaceWidget::hideDialog()
 501 {
 502         dispatch(FuncRequest(LFUN_DIALOG_TOGGLE, "findreplaceadv"));
 503 }
 504
 505
 506 void FindAndReplaceWidget::on_findNextPB_clicked()
 507 {
 508         findAndReplace(searchbackCB->isChecked(), false);
 509         find_work_area_->setFocus();
 510 }
 511
 512
 513 void FindAndReplaceWidget::on_replacePB_clicked()
 514 {
 515         findAndReplace(searchbackCB->isChecked(), true);
 516         replace_work_area_->setFocus();
 517 }
 518
 519
 520 void FindAndReplaceWidget::on_replaceallPB_clicked()
 521 {
 522         replace_work_area_->setFocus();
 523 }
 524
 525
 526 void FindAndReplaceWidget::showEvent(QShowEvent * /* ev */)
 527 {
 528         BufferView * bv = view_.documentBufferView();
 529         if (bv) {
 530                 Buffer & doc_buf = bv->buffer();
 531                 BufferParams & doc_bp = doc_buf.params();
 532                 Buffer & find_buf = find_work_area_->bufferView().buffer();
 533                 LYXERR(Debug::FIND, "Applying document params to find buffer");
 534                 ApplyParams(find_buf, doc_bp);
 535                 Buffer & replace_buf = replace_work_area_->bufferView().buffer();
 536                 LYXERR(Debug::FIND, "Applying document params to replace buffer");
 537                 ApplyParams(replace_buf, doc_bp);
 538
 539                 string lang = doc_bp.language->lang();
 540                 LYXERR(Debug::FIND, "Setting current editing language to " << lang << endl);
 541                 FuncRequest cmd(LFUN_LANGUAGE, lang);
 542                 find_buf.text().dispatch(find_work_area_->bufferView().cursor(), cmd);
 543                 replace_buf.text().dispatch(replace_work_area_->bufferView().cursor(), cmd);
 544
 545                 view_.setCurrentWorkArea(find_work_area_);
 546                 LYXERR(Debug::FIND, "Selecting entire find buffer");
 547                 dispatch(FuncRequest(LFUN_BUFFER_BEGIN));
 548                 dispatch(FuncRequest(LFUN_BUFFER_END_SELECT));
 549         }
 550         find_work_area_->installEventFilter(this);
 551         replace_work_area_->installEventFilter(this);
 552 }
 553
 554
 555 void FindAndReplaceWidget::hideEvent(QHideEvent *ev)
 556 {
 557         replace_work_area_->removeEventFilter(this);
 558         find_work_area_->removeEventFilter(this);
 559         this->QWidget::hideEvent(ev);
 560 }
 561
 562
 563 bool FindAndReplaceWidget::initialiseParams(std::string const & /*params*/)
 564 {
 565         return true;
 566 }
 567
 568
 569 FindAndReplace::FindAndReplace(GuiView & parent,
 570                 Qt::DockWidgetArea area, Qt::WindowFlags flags)
 571         : DockView(parent, "findreplaceadv", qt_("Advanced Find and Replace"),
 572                    area, flags)
 573 {
 574         widget_ = new FindAndReplaceWidget(parent);
 575         setWidget(widget_);
 576         setFocusProxy(widget_);
 577 }
 578
 579
 580 FindAndReplace::~FindAndReplace()
 581 {
 582         setFocusProxy(0);
 583         delete widget_;
 584 }
 585
 586
 587 bool FindAndReplace::initialiseParams(std::string const & params)
 588 {
 589         return widget_->initialiseParams(params);
 590 }
 591
 592
 593 Dialog * createGuiSearchAdv(GuiView & lv)
 594 {
 595         FindAndReplace * gui = new FindAndReplace(lv, Qt::RightDockWidgetArea);
 596 #ifdef Q_WS_MACX
 597         // On Mac show and floating
 598         gui->setFloating(true);
 599 #endif
 600         return gui;
 601 }
 602
 603
 604 } // namespace frontend
 605 } // namespace lyx
 606
 607
 608 #include "moc_FindAndReplace.cpp"