src/lyxfunc.C

   1 /**
   2  * \file lyxfunc.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Alfredo Braunstein
   7  * \author Lars Gullik Bjønnes
   8  * \author Jean-Marc Lasgouttes
   9  * \author Angus Leeming
  10  * \author John Levon
  11  * \author André Pönitz
  12  * \author Allan Rae
  13  * \author Dekel Tsur
  14  * \author Martin Vermeer
  15  * \author Jürgen Vigna
  16  *
  17  * Full author contact details are available in file CREDITS.
  18  */
  19
  20 #include <config.h>
  21
  22 #include "lyxfunc.h"
  23
  24 #include "BranchList.h"
  25 #include "buffer.h"
  26 #include "buffer_funcs.h"
  27 #include "bufferlist.h"
  28 #include "bufferparams.h"
  29 #include "BufferView.h"
  30 #include "bufferview_funcs.h"
  31 #include "cursor.h"
  32 #include "CutAndPaste.h"
  33 #include "debug.h"
  34 #include "dispatchresult.h"
  35 #include "encoding.h"
  36 #include "errorlist.h"
  37 #include "exporter.h"
  38 #include "format.h"
  39 #include "funcrequest.h"
  40 #include "FuncStatus.h"
  41 #include "gettext.h"
  42 #include "importer.h"
  43 #include "insetiterator.h"
  44 #include "intl.h"
  45 #include "kbmap.h"
  46 #include "language.h"
  47 #include "LColor.h"
  48 #include "session.h"
  49 #include "lyx_main.h"
  50 #include "lyx_cb.h"
  51 #include "LyXAction.h"
  52 #include "lyxfind.h"
  53 #include "lyxlex.h"
  54 #include "lyxrc.h"
  55 #include "lyxrow.h"
  56 #include "lyxserver.h"
  57 #include "lyxtextclasslist.h"
  58 #include "lyxvc.h"
  59 #include "paragraph.h"
  60 #include "pariterator.h"
  61 #include "ParagraphParameters.h"
  62 #include "undo.h"
  63
  64 #include "insets/insetbox.h"
  65 #include "insets/insetbranch.h"
  66 #include "insets/insetcommand.h"
  67 #include "insets/insetert.h"
  68 #include "insets/insetexternal.h"
  69 #include "insets/insetfloat.h"
  70 #include "insets/insetgraphics.h"
  71 #include "insets/insetinclude.h"
  72 #include "insets/insetnote.h"
  73 #include "insets/insettabular.h"
  74 #include "insets/insetvspace.h"
  75 #include "insets/insetwrap.h"
  76
  77 #include "frontends/Application.h"
  78 #include "frontends/Alert.h"
  79 #include "frontends/Dialogs.h"
  80 #include "frontends/FileDialog.h"
  81 #include "frontends/FontLoader.h"
  82 #include "frontends/Gui.h"
  83 #include "frontends/LyXKeySym.h"
  84 #include "frontends/LyXView.h"
  85 #include "frontends/Menubar.h"
  86 #include "frontends/Toolbars.h"
  87
  88 #include "support/environment.h"
  89 #include "support/filefilterlist.h"
  90 #include "support/filetools.h"
  91 #include "support/forkedcontr.h"
  92 #include "support/fs_extras.h"
  93 #include "support/lstrings.h"
  94 #include "support/path.h"
  95 #include "support/package.h"
  96 #include "support/systemcall.h"
  97 #include "support/convert.h"
  98 #include "support/os.h"
  99
 100 #include <boost/current_function.hpp>
 101 #include <boost/filesystem/operations.hpp>
 102
 103 #include <sstream>
 104
 105
 106 namespace lyx {
 107
 108 using bv_funcs::freefont2string;
 109
 110 using support::absolutePath;
 111 using support::addName;
 112 using support::addPath;
 113 using support::bformat;
 114 using support::changeExtension;
 115 using support::contains;
 116 using support::FileFilterList;
 117 using support::FileName;
 118 using support::fileSearch;
 119 using support::ForkedcallsController;
 120 using support::i18nLibFileSearch;
 121 using support::isDirWriteable;
 122 using support::isFileReadable;
 123 using support::isStrInt;
 124 using support::makeAbsPath;
 125 using support::makeDisplayPath;
 126 using support::package;
 127 using support::quoteName;
 128 using support::rtrim;
 129 using support::split;
 130 using support::subst;
 131 using support::Systemcall;
 132 using support::token;
 133 using support::trim;
 134 using support::prefixIs;
 135
 136 using std::endl;
 137 using std::make_pair;
 138 using std::pair;
 139 using std::string;
 140 using std::istringstream;
 141 using std::ostringstream;
 142
 143 namespace Alert = frontend::Alert;
 144 namespace fs = boost::filesystem;
 145
 146
 147 // (alkis)
 148 extern tex_accent_struct get_accent(kb_action action);
 149
 150
 151 namespace {
 152
 153 bool getLocalStatus(LCursor cursor,
 154                FuncRequest const & cmd, FuncStatus & status)
 155 {
 156         // Try to fix cursor in case it is broken.
 157         cursor.fixIfBroken();
 158
 159         // This is, of course, a mess. Better create a new doc iterator and use
 160         // this in Inset::getStatus. This might require an additional
 161         // BufferView * arg, though (which should be avoided)
 162         //LCursor safe = *this;
 163         bool res = false;
 164         for ( ; cursor.depth(); cursor.pop()) {
 165                 //lyxerr << "\nLCursor::getStatus: cmd: " << cmd << endl << *this << endl;
 166                 BOOST_ASSERT(cursor.idx() <= cursor.lastidx());
 167                 BOOST_ASSERT(cursor.pit() <= cursor.lastpit());
 168                 BOOST_ASSERT(cursor.pos() <= cursor.lastpos());
 169
 170                 // The inset's getStatus() will return 'true' if it made
 171                 // a definitive decision on whether it want to handle the
 172                 // request or not. The result of this decision is put into
 173                 // the 'status' parameter.
 174                 if (cursor.inset().getStatus(cursor, cmd, status)) {
 175                         res = true;
 176                         break;
 177                 }
 178         }
 179         return res;
 180 }
 181
 182
 183 /** Return the change status at cursor position, taking in account the
 184  * status at each level of the document iterator (a table in a deleted
 185  * footnote is deleted).
 186  * When \param outer is true, the top slice is not looked at.
 187  */
 188 Change::Type lookupChangeType(DocIterator const & dit, bool outer = false)
 189 {
 190         size_t const depth = dit.depth() - (outer ? 1 : 0);
 191
 192         for (size_t i = 0 ; i < depth ; ++i) {
 193                 CursorSlice const & slice = dit[i];
 194                 if (!slice.inset().inMathed()
 195                     && slice.pos() < slice.paragraph().size()) {
 196                         Change::Type const ch = slice.paragraph().lookupChange(slice.pos()).type;
 197                         if (ch != Change::UNCHANGED)
 198                                 return ch;
 199                 }
 200         }
 201         return Change::UNCHANGED;
 202 }
 203
 204 }
 205
 206 LyXFunc::LyXFunc()
 207         : lyx_view_(0),
 208         encoded_last_key(0),
 209         meta_fake_bit(key_modifier::none)
 210 {
 211 }
 212
 213
 214 void LyXFunc::initKeySequences(kb_keymap * kb)
 215 {
 216         keyseq.reset(new kb_sequence(kb, kb));
 217         cancel_meta_seq.reset(new kb_sequence(kb, kb));
 218 }
 219
 220
 221 void LyXFunc::setLyXView(LyXView * lv)
 222 {
 223         lyx_view_ = lv;
 224 }
 225
 226
 227 void LyXFunc::handleKeyFunc(kb_action action)
 228 {
 229         char_type c = encoded_last_key;
 230
 231         if (keyseq->length())
 232                 c = 0;
 233
 234         lyx_view_->view()->getIntl().getTransManager().deadkey(
 235                 c, get_accent(action).accent, view()->getLyXText(), view()->cursor());
 236         // Need to clear, in case the minibuffer calls these
 237         // actions
 238         keyseq->clear();
 239         // copied verbatim from do_accent_char
 240         view()->cursor().resetAnchor();
 241         view()->update();
 242 }
 243
 244
 245 void LyXFunc::gotoBookmark(unsigned int idx, bool openFile, bool switchToBuffer)
 246 {
 247         BOOST_ASSERT(lyx_view_);
 248         if (!LyX::ref().session().bookmarks().isValid(idx))
 249                 return;
 250         BookmarksSection::Bookmark const & bm = LyX::ref().session().bookmarks().bookmark(idx);
 251         BOOST_ASSERT(!bm.filename.empty());
 252         string const file = bm.filename.absFilename();
 253         // if the file is not opened, open it.
 254         if (!theBufferList().exists(file)) {
 255                 if (openFile)
 256                         dispatch(FuncRequest(LFUN_FILE_OPEN, file));
 257                 else
 258                         return;
 259         }
 260         // open may fail, so we need to test it again
 261         if (theBufferList().exists(file)) {
 262                 // if the current buffer is not that one, switch to it.
 263                 if (lyx_view_->buffer()->fileName() != file) {
 264                         if (switchToBuffer)
 265                                 dispatch(FuncRequest(LFUN_BUFFER_SWITCH, file));
 266                         else
 267                                 return;
 268                 }
 269                 // moveToPosition use par_id, and par_pit and return new par_id.
 270                 pit_type new_pit;
 271                 int new_id;
 272                 boost::tie(new_pit, new_id) = view()->moveToPosition(bm.par_pit, bm.par_id, bm.par_pos);
 273                 // if par_id or pit has been changed, reset par_pit and par_id
 274                 // see http://bugzilla.lyx.org/show_bug.cgi?id=3092
 275                 if (bm.par_pit != new_pit || bm.par_id != new_id)
 276                         const_cast<BookmarksSection::Bookmark &>(bm).setPos(new_pit, new_id);
 277         }
 278 }
 279
 280
 281 void LyXFunc::processKeySym(LyXKeySymPtr keysym, key_modifier::state state)
 282 {
 283         lyxerr[Debug::KEY] << "KeySym is " << keysym->getSymbolName() << endl;
 284
 285         // Do nothing if we have nothing (JMarc)
 286         if (!keysym->isOK()) {
 287                 lyxerr[Debug::KEY] << "Empty kbd action (probably composing)"
 288                                    << endl;
 289                 return;
 290         }
 291
 292         if (keysym->isModifier()) {
 293                 lyxerr[Debug::KEY] << "isModifier true" << endl;
 294                 return;
 295         }
 296
 297         //Encoding const * encoding = view()->cursor().getEncoding();
 298         //encoded_last_key = keysym->getISOEncoded(encoding ? encoding->name() : "");
 299         // FIXME: encoded_last_key shadows the member variable of the same
 300         // name. Is that intended?
 301         char_type encoded_last_key = keysym->getUCSEncoded();
 302
 303         // Do a one-deep top-level lookup for
 304         // cancel and meta-fake keys. RVDK_PATCH_5
 305         cancel_meta_seq->reset();
 306
 307         FuncRequest func = cancel_meta_seq->addkey(keysym, state);
 308         lyxerr[Debug::KEY] << BOOST_CURRENT_FUNCTION
 309                            << " action first set to [" << func.action << ']'
 310                            << endl;
 311
 312         // When not cancel or meta-fake, do the normal lookup.
 313         // Note how the meta_fake Mod1 bit is OR-ed in and reset afterwards.
 314         // Mostly, meta_fake_bit = key_modifier::none. RVDK_PATCH_5.
 315         if ((func.action != LFUN_CANCEL) && (func.action != LFUN_META_PREFIX)) {
 316                 // remove Caps Lock and Mod2 as a modifiers
 317                 func = keyseq->addkey(keysym, (state | meta_fake_bit));
 318                 lyxerr[Debug::KEY] << BOOST_CURRENT_FUNCTION
 319                                    << "action now set to ["
 320                                    << func.action << ']' << endl;
 321         }
 322
 323         // Dont remove this unless you know what you are doing.
 324         meta_fake_bit = key_modifier::none;
 325
 326         // Can this happen now ?
 327         if (func.action == LFUN_NOACTION) {
 328                 func = FuncRequest(LFUN_COMMAND_PREFIX);
 329         }
 330
 331         if (lyxerr.debugging(Debug::KEY)) {
 332                 lyxerr << BOOST_CURRENT_FUNCTION
 333                        << " Key [action="
 334                        << func.action << "]["
 335                        << to_utf8(keyseq->print(false)) << ']'
 336                        << endl;
 337         }
 338
 339         // already here we know if it any point in going further
 340         // why not return already here if action == -1 and
 341         // num_bytes == 0? (Lgb)
 342
 343         if (keyseq->length() > 1) {
 344                 lyx_view_->message(keyseq->print(true));
 345         }
 346
 347
 348         // Maybe user can only reach the key via holding down shift.
 349         // Let's see. But only if shift is the only modifier
 350         if (func.action == LFUN_UNKNOWN_ACTION &&
 351             state == key_modifier::shift) {
 352                 lyxerr[Debug::KEY] << "Trying without shift" << endl;
 353                 func = keyseq->addkey(keysym, key_modifier::none);
 354                 lyxerr[Debug::KEY] << "Action now " << func.action << endl;
 355         }
 356
 357         if (func.action == LFUN_UNKNOWN_ACTION) {
 358                 // Hmm, we didn't match any of the keysequences. See
 359                 // if it's normal insertable text not already covered
 360                 // by a binding
 361                 if (keysym->isText() && keyseq->length() == 1) {
 362                         lyxerr[Debug::KEY] << "isText() is true, inserting." << endl;
 363                         func = FuncRequest(LFUN_SELF_INSERT,
 364                                            FuncRequest::KEYBOARD);
 365                 } else {
 366                         lyxerr[Debug::KEY] << "Unknown, !isText() - giving up" << endl;
 367                         lyx_view_->message(_("Unknown function."));
 368                         return;
 369                 }
 370         }
 371
 372         if (func.action == LFUN_SELF_INSERT) {
 373                 if (encoded_last_key != 0) {
 374                         docstring const arg(1, encoded_last_key);
 375                         dispatch(FuncRequest(LFUN_SELF_INSERT, arg,
 376                                              FuncRequest::KEYBOARD));
 377                         lyxerr[Debug::KEY]
 378                                 << "SelfInsert arg[`" << to_utf8(arg) << "']" << endl;
 379                 }
 380         } else {
 381                 dispatch(func);
 382         }
 383 }
 384
 385
 386 FuncStatus LyXFunc::getStatus(FuncRequest const & cmd) const
 387 {
 388         //lyxerr << "LyXFunc::getStatus: cmd: " << cmd << endl;
 389         FuncStatus flag;
 390
 391         LCursor & cur = view()->cursor();
 392
 393         /* In LyX/Mac, when a dialog is open, the menus of the
 394            application can still be accessed without giving focus to
 395            the main window. In this case, we want to disable the menu
 396            entries that are buffer-related.
 397
 398            Note that this code is not perfect, as bug 1941 attests:
 399            http://bugzilla.lyx.org/show_bug.cgi?id=1941#c4
 400         */
 401         Buffer * buf = lyx_view_? lyx_view_->buffer() : 0;
 402         if (lyx_view_ && cmd.origin == FuncRequest::MENU && !lyx_view_->hasFocus())
 403                 buf = 0;
 404
 405         if (cmd.action == LFUN_NOACTION) {
 406                 flag.message(from_utf8(N_("Nothing to do")));
 407                 flag.enabled(false);
 408                 return flag;
 409         }
 410
 411         switch (cmd.action) {
 412         case LFUN_UNKNOWN_ACTION:
 413 #ifndef HAVE_LIBAIKSAURUS
 414         case LFUN_THESAURUS_ENTRY:
 415 #endif
 416                 flag.unknown(true);
 417                 flag.enabled(false);
 418                 break;
 419
 420         default:
 421                 break;
 422         }
 423
 424         if (flag.unknown()) {
 425                 flag.message(from_utf8(N_("Unknown action")));
 426                 return flag;
 427         }
 428
 429         if (!flag.enabled()) {
 430                 if (flag.message().empty())
 431                         flag.message(from_utf8(N_("Command disabled")));
 432                 return flag;
 433         }
 434
 435         // Check whether we need a buffer
 436         if (!lyxaction.funcHasFlag(cmd.action, LyXAction::NoBuffer) && !buf) {
 437                 // no, exit directly
 438                 flag.message(from_utf8(N_("Command not allowed with"
 439                                     "out any document open")));
 440                 flag.enabled(false);
 441                 return flag;
 442         }
 443
 444         // I would really like to avoid having this switch and rather try to
 445         // encode this in the function itself.
 446         // -- And I'd rather let an inset decide which LFUNs it is willing
 447         // to handle (Andre')
 448         bool enable = true;
 449         switch (cmd.action) {
 450         case LFUN_BUFFER_TOGGLE_READ_ONLY:
 451                 flag.setOnOff(buf->isReadonly());
 452                 break;
 453
 454         case LFUN_BUFFER_SWITCH:
 455                 // toggle on the current buffer, but do not toggle off
 456                 // the other ones (is that a good idea?)
 457                 if (to_utf8(cmd.argument()) == buf->fileName())
 458                         flag.setOnOff(true);
 459                 break;
 460
 461         case LFUN_BUFFER_EXPORT:
 462                 enable = cmd.argument() == "custom"
 463                         || Exporter::isExportable(*buf, to_utf8(cmd.argument()));
 464                 break;
 465
 466         case LFUN_BUFFER_CHKTEX:
 467                 enable = buf->isLatex() && !lyxrc.chktex_command.empty();
 468                 break;
 469
 470         case LFUN_BUILD_PROGRAM:
 471                 enable = Exporter::isExportable(*buf, "program");
 472                 break;
 473
 474         case LFUN_LAYOUT_TABULAR:
 475                 enable = cur.innerInsetOfType(InsetBase::TABULAR_CODE);
 476                 break;
 477
 478         case LFUN_LAYOUT:
 479         case LFUN_LAYOUT_PARAGRAPH:
 480                 enable = !cur.inset().forceDefaultParagraphs(cur.idx());
 481                 break;
 482
 483         case LFUN_VC_REGISTER:
 484                 enable = !buf->lyxvc().inUse();
 485                 break;
 486         case LFUN_VC_CHECK_IN:
 487                 enable = buf->lyxvc().inUse() && !buf->isReadonly();
 488                 break;
 489         case LFUN_VC_CHECK_OUT:
 490                 enable = buf->lyxvc().inUse() && buf->isReadonly();
 491                 break;
 492         case LFUN_VC_REVERT:
 493         case LFUN_VC_UNDO_LAST:
 494                 enable = buf->lyxvc().inUse();
 495                 break;
 496         case LFUN_BUFFER_RELOAD:
 497                 enable = !buf->isUnnamed() && !buf->isClean();
 498                 break;
 499
 500         case LFUN_INSET_SETTINGS: {
 501                 enable = false;
 502                 if (!cur)
 503                         break;
 504                 InsetBase::Code code = cur.inset().lyxCode();
 505                 switch (code) {
 506                         case InsetBase::TABULAR_CODE:
 507                                 enable = cmd.argument() == "tabular";
 508                                 break;
 509                         case InsetBase::ERT_CODE:
 510                                 enable = cmd.argument() == "ert";
 511                                 break;
 512                         case InsetBase::FLOAT_CODE:
 513                                 enable = cmd.argument() == "float";
 514                                 break;
 515                         case InsetBase::WRAP_CODE:
 516                                 enable = cmd.argument() == "wrap";
 517                                 break;
 518                         case InsetBase::NOTE_CODE:
 519                                 enable = cmd.argument() == "note";
 520                                 break;
 521                         case InsetBase::BRANCH_CODE:
 522                                 enable = cmd.argument() == "branch";
 523                                 break;
 524                         case InsetBase::BOX_CODE:
 525                                 enable = cmd.argument() == "box";
 526                                 break;
 527                         default:
 528                                 break;
 529                 }
 530                 break;
 531         }
 532
 533         case LFUN_INSET_APPLY: {
 534                 string const name = cmd.getArg(0);
 535                 InsetBase * inset = lyx_view_->getDialogs().getOpenInset(name);
 536                 if (inset) {
 537                         FuncRequest fr(LFUN_INSET_MODIFY, cmd.argument());
 538                         FuncStatus fs;
 539                         if (!inset->getStatus(cur, fr, fs)) {
 540                                 // Every inset is supposed to handle this
 541                                 BOOST_ASSERT(false);
 542                         }
 543                         flag |= fs;
 544                 } else {
 545                         FuncRequest fr(LFUN_INSET_INSERT, cmd.argument());
 546                         flag |= getStatus(fr);
 547                 }
 548                 enable = flag.enabled();
 549                 break;
 550         }
 551
 552         case LFUN_DIALOG_SHOW: {
 553                 string const name = cmd.getArg(0);
 554                 if (!buf)
 555                         enable = name == "aboutlyx"
 556                                 || name == "file"
 557                                 || name == "forks"
 558                                 || name == "prefs"
 559                                 || name == "texinfo";
 560                 else if (name == "print")
 561                         enable = Exporter::isExportable(*buf, "dvi")
 562                                 && lyxrc.print_command != "none";
 563                 else if (name == "character" || name == "mathpanel")
 564                         enable = cur.inset().lyxCode() != InsetBase::ERT_CODE;
 565                 else if (name == "latexlog")
 566                         enable = isFileReadable(FileName(buf->getLogName().second));
 567 #if !defined (USE_ASPELL) && !defined (USE_ISPELL) && !defined (USE_PSPELL)
 568                 else if (name == "spellchecker")
 569                         enable = false;
 570 #endif
 571                 else if (name == "vclog")
 572                         enable = buf->lyxvc().inUse();
 573                 else if (name == "view-source")
 574                         enable = buf;
 575                 break;
 576         }
 577
 578         case LFUN_DIALOG_SHOW_NEW_INSET:
 579                 enable = cur.inset().lyxCode() != InsetBase::ERT_CODE;
 580                 break;
 581
 582         case LFUN_DIALOG_UPDATE: {
 583                 string const name = cmd.getArg(0);
 584                 if (!buf)
 585                         enable = name == "prefs";
 586                 break;
 587         }
 588
 589         case LFUN_CITATION_INSERT: {
 590                 FuncRequest fr(LFUN_INSET_INSERT, "citation");
 591                 enable = getStatus(fr).enabled();
 592                 break;
 593         }
 594
 595         case LFUN_BUFFER_WRITE: {
 596                 enable = view()->buffer()->isUnnamed()
 597                         || !view()->buffer()->isClean();
 598                 break;
 599         }
 600
 601         case LFUN_BOOKMARK_GOTO: {
 602                 const unsigned int num = convert<unsigned int>(to_utf8(cmd.argument()));
 603                 enable = LyX::ref().session().bookmarks().isValid(num);
 604                 break;
 605         }
 606
 607         case LFUN_BOOKMARK_CLEAR:
 608                 enable = LyX::ref().session().bookmarks().size() > 0;
 609                 break;
 610
 611         case LFUN_TOOLBAR_TOGGLE_STATE: {
 612                 ToolbarBackend::Flags flags = lyx_view_->getToolbarState(to_utf8(cmd.argument()));
 613                 if (!(flags & ToolbarBackend::AUTO))
 614                         flag.setOnOff(flags & ToolbarBackend::ON);
 615                 break;
 616         }
 617
 618         // this one is difficult to get right. As a half-baked
 619         // solution, we consider only the first action of the sequence
 620         case LFUN_COMMAND_SEQUENCE: {
 621                 // argument contains ';'-terminated commands
 622                 string const firstcmd = token(to_utf8(cmd.argument()), ';', 0);
 623                 FuncRequest func(lyxaction.lookupFunc(firstcmd));
 624                 func.origin = cmd.origin;
 625                 flag = getStatus(func);
 626         }
 627
 628         case LFUN_BUFFER_NEW:
 629         case LFUN_BUFFER_NEW_TEMPLATE:
 630         case LFUN_WORD_FIND_FORWARD:
 631         case LFUN_WORD_FIND_BACKWARD:
 632         case LFUN_COMMAND_PREFIX:
 633         case LFUN_COMMAND_EXECUTE:
 634         case LFUN_CANCEL:
 635         case LFUN_META_PREFIX:
 636         case LFUN_BUFFER_CLOSE:
 637         case LFUN_BUFFER_WRITE_AS:
 638         case LFUN_BUFFER_UPDATE:
 639         case LFUN_BUFFER_VIEW:
 640         case LFUN_BUFFER_IMPORT:
 641         case LFUN_TOC_VIEW:
 642         case LFUN_BUFFER_AUTO_SAVE:
 643         case LFUN_RECONFIGURE:
 644         case LFUN_HELP_OPEN:
 645         case LFUN_FILE_NEW:
 646         case LFUN_FILE_OPEN:
 647         case LFUN_DROP_LAYOUTS_CHOICE:
 648         case LFUN_MENU_OPEN:
 649         case LFUN_SERVER_GET_NAME:
 650         case LFUN_SERVER_NOTIFY:
 651         case LFUN_SERVER_GOTO_FILE_ROW:
 652         case LFUN_DIALOG_HIDE:
 653         case LFUN_DIALOG_DISCONNECT_INSET:
 654         case LFUN_BUFFER_CHILD_OPEN:
 655         case LFUN_TOGGLE_CURSOR_FOLLOWS_SCROLLBAR:
 656         case LFUN_KEYMAP_OFF:
 657         case LFUN_KEYMAP_PRIMARY:
 658         case LFUN_KEYMAP_SECONDARY:
 659         case LFUN_KEYMAP_TOGGLE:
 660         case LFUN_REPEAT:
 661         case LFUN_BUFFER_EXPORT_CUSTOM:
 662         case LFUN_BUFFER_PRINT:
 663         case LFUN_PREFERENCES_SAVE:
 664         case LFUN_SCREEN_FONT_UPDATE:
 665         case LFUN_SET_COLOR:
 666         case LFUN_MESSAGE:
 667         case LFUN_EXTERNAL_EDIT:
 668         case LFUN_GRAPHICS_EDIT:
 669         case LFUN_ALL_INSETS_TOGGLE:
 670         case LFUN_BUFFER_LANGUAGE:
 671         case LFUN_TEXTCLASS_APPLY:
 672         case LFUN_TEXTCLASS_LOAD:
 673         case LFUN_BUFFER_SAVE_AS_DEFAULT:
 674         case LFUN_BUFFER_PARAMS_APPLY:
 675         case LFUN_LYXRC_APPLY:
 676         case LFUN_BUFFER_NEXT:
 677         case LFUN_BUFFER_PREVIOUS:
 678         case LFUN_WINDOW_NEW:
 679         case LFUN_WINDOW_CLOSE:
 680         case LFUN_LYX_QUIT:
 681                 // these are handled in our dispatch()
 682                 break;
 683
 684         default:
 685                 if (!getLocalStatus(cur, cmd, flag))
 686                         flag = view()->getStatus(cmd);
 687         }
 688
 689         if (!enable)
 690                 flag.enabled(false);
 691
 692         // Can we use a readonly buffer?
 693         if (buf && buf->isReadonly()
 694             && !lyxaction.funcHasFlag(cmd.action, LyXAction::ReadOnly)
 695             && !lyxaction.funcHasFlag(cmd.action, LyXAction::NoBuffer)) {
 696                 flag.message(from_utf8(N_("Document is read-only")));
 697                 flag.enabled(false);
 698         }
 699
 700         // Are we in a DELETED change-tracking region?
 701         if (buf && lookupChangeType(cur, true) == Change::DELETED
 702             && !lyxaction.funcHasFlag(cmd.action, LyXAction::ReadOnly)
 703             && !lyxaction.funcHasFlag(cmd.action, LyXAction::NoBuffer)) {
 704                 flag.message(from_utf8(N_("This portion of the document is deleted.")));
 705                 flag.enabled(false);
 706         }
 707
 708         // the default error message if we disable the command
 709         if (!flag.enabled() && flag.message().empty())
 710                 flag.message(from_utf8(N_("Command disabled")));
 711
 712         return flag;
 713 }
 714
 715
 716 bool LyXFunc::ensureBufferClean(BufferView * bv)
 717 {
 718         Buffer & buf = *bv->buffer();
 719         if (buf.isClean())
 720                 return true;
 721
 722         docstring const file = makeDisplayPath(buf.fileName(), 30);
 723         docstring text = bformat(_("The document %1$s has unsaved "
 724                                              "changes.\n\nDo you want to save "
 725                                              "the document?"), file);
 726         int const ret = Alert::prompt(_("Save changed document?"),
 727                                       text, 0, 1, _("&Save"),
 728                                       _("&Cancel"));
 729
 730         if (ret == 0)
 731                 dispatch(FuncRequest(LFUN_BUFFER_WRITE));
 732
 733         return buf.isClean();
 734 }
 735
 736
 737 namespace {
 738
 739 void showPrintError(string const & name)
 740 {
 741         docstring str = bformat(_("Could not print the document %1$s.\n"
 742                                             "Check that your printer is set up correctly."),
 743                              makeDisplayPath(name, 50));
 744         Alert::error(_("Print document failed"), str);
 745 }
 746
 747
 748 void loadTextclass(string const & name)
 749 {
 750         std::pair<bool, textclass_type> const tc_pair =
 751                 textclasslist.numberOfClass(name);
 752
 753         if (!tc_pair.first) {
 754                 lyxerr << "Document class \"" << name
 755                        << "\" does not exist."
 756                        << std::endl;
 757                 return;
 758         }
 759
 760         textclass_type const tc = tc_pair.second;
 761
 762         if (!textclasslist[tc].load()) {
 763                 docstring s = bformat(_("The document could not be converted\n"
 764                                                   "into the document class %1$s."),
 765                                    from_utf8(textclasslist[tc].name()));
 766                 Alert::error(_("Could not change class"), s);
 767         }
 768 }
 769
 770
 771 void actOnUpdatedPrefs(LyXRC const & lyxrc_orig, LyXRC const & lyxrc_new);
 772
 773 } //namespace anon
 774
 775
 776 void LyXFunc::dispatch(FuncRequest const & cmd)
 777 {
 778         string const argument = to_utf8(cmd.argument());
 779         kb_action const action = cmd.action;
 780
 781         lyxerr[Debug::ACTION] << endl << "LyXFunc::dispatch: cmd: " << cmd << endl;
 782         //lyxerr << "LyXFunc::dispatch: cmd: " << cmd << endl;
 783
 784         // we have not done anything wrong yet.
 785         errorstat = false;
 786         dispatch_buffer.erase();
 787
 788         // redraw the screen at the end (first of the two drawing steps).
 789         //This is done unless explicitely requested otherwise
 790         Update::flags updateFlags = Update::FitCursor;
 791
 792         FuncStatus const flag = getStatus(cmd);
 793         if (!flag.enabled()) {
 794                 // We cannot use this function here
 795                 lyxerr[Debug::ACTION] << "LyXFunc::dispatch: "
 796                        << lyxaction.getActionName(action)
 797                        << " [" << action << "] is disabled at this location"
 798                        << endl;
 799                 setErrorMessage(flag.message());
 800         } else {
 801                 switch (action) {
 802
 803                 case LFUN_WORD_FIND_FORWARD:
 804                 case LFUN_WORD_FIND_BACKWARD: {
 805                         BOOST_ASSERT(lyx_view_ && lyx_view_->view());
 806                         static docstring last_search;
 807                         docstring searched_string;
 808
 809                         if (!cmd.argument().empty()) {
 810                                 last_search = cmd.argument();
 811                                 searched_string = cmd.argument();
 812                         } else {
 813                                 searched_string = last_search;
 814                         }
 815
 816                         if (searched_string.empty())
 817                                 break;
 818
 819                         bool const fw = action == LFUN_WORD_FIND_FORWARD;
 820                         docstring const data =
 821                                 find2string(searched_string, true, false, fw);
 822                         find(view(), FuncRequest(LFUN_WORD_FIND, data));
 823                         break;
 824                 }
 825
 826                 case LFUN_COMMAND_PREFIX:
 827                         BOOST_ASSERT(lyx_view_);
 828                         lyx_view_->message(keyseq->printOptions(true));
 829                         break;
 830
 831                 case LFUN_COMMAND_EXECUTE:
 832                         BOOST_ASSERT(lyx_view_);
 833                         lyx_view_->getToolbars().display("minibuffer", true);
 834                         lyx_view_->focus_command_buffer();
 835                         break;
 836
 837                 case LFUN_CANCEL:
 838                         BOOST_ASSERT(lyx_view_ && lyx_view_->view());
 839                         keyseq->reset();
 840                         meta_fake_bit = key_modifier::none;
 841                         if (view()->buffer())
 842                                 // cancel any selection
 843                                 dispatch(FuncRequest(LFUN_MARK_OFF));
 844                         setMessage(_("Cancel"));
 845                         break;
 846
 847                 case LFUN_META_PREFIX:
 848                         meta_fake_bit = key_modifier::alt;
 849                         setMessage(keyseq->print(true));
 850                         break;
 851
 852                 case LFUN_BUFFER_TOGGLE_READ_ONLY:
 853                         BOOST_ASSERT(lyx_view_ && lyx_view_->view() && lyx_view_->buffer());
 854                         if (lyx_view_->buffer()->lyxvc().inUse())
 855                                 lyx_view_->buffer()->lyxvc().toggleReadOnly();
 856                         else
 857                                 lyx_view_->buffer()->setReadonly(
 858                                         !lyx_view_->buffer()->isReadonly());
 859                         break;
 860
 861                 // --- Menus -----------------------------------------------
 862                 case LFUN_BUFFER_NEW:
 863                         menuNew(argument, false);
 864                         break;
 865
 866                 case LFUN_BUFFER_NEW_TEMPLATE:
 867                         menuNew(argument, true);
 868                         break;
 869
 870                 case LFUN_BUFFER_CLOSE:
 871                         closeBuffer();
 872                         view()->update();
 873                         break;
 874
 875                 case LFUN_BUFFER_WRITE:
 876                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
 877                         if (!lyx_view_->buffer()->isUnnamed()) {
 878                                 docstring const str = bformat(_("Saving document %1$s..."),
 879                                          makeDisplayPath(lyx_view_->buffer()->fileName()));
 880                                 lyx_view_->message(str);
 881                                 menuWrite(lyx_view_->buffer());
 882                                 lyx_view_->message(str + _(" done."));
 883                         } else {
 884                                 writeAs(lyx_view_->buffer());
 885                         }
 886                         updateFlags = Update::None;
 887                         break;
 888
 889                 case LFUN_BUFFER_WRITE_AS:
 890                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
 891                         writeAs(lyx_view_->buffer(), argument);
 892                         updateFlags = Update::None;
 893                         break;
 894
 895                 case LFUN_BUFFER_RELOAD: {
 896                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
 897                         docstring const file = makeDisplayPath(view()->buffer()->fileName(), 20);
 898                         docstring text = bformat(_("Any changes will be lost. Are you sure "
 899                                                              "you want to revert to the saved version of the document %1$s?"), file);
 900                         int const ret = Alert::prompt(_("Revert to saved document?"),
 901                                 text, 0, 1, _("&Revert"), _("&Cancel"));
 902
 903                         if (ret == 0)
 904                                 reloadBuffer();
 905                         break;
 906                 }
 907
 908                 case LFUN_BUFFER_UPDATE:
 909                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
 910                         Exporter::Export(lyx_view_->buffer(), argument, true);
 911                         break;
 912
 913                 case LFUN_BUFFER_VIEW:
 914                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
 915                         Exporter::preview(lyx_view_->buffer(), argument);
 916                         break;
 917
 918                 case LFUN_BUILD_PROGRAM:
 919                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
 920                         Exporter::Export(lyx_view_->buffer(), "program", true);
 921                         break;
 922
 923                 case LFUN_BUFFER_CHKTEX:
 924                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
 925                         lyx_view_->buffer()->runChktex();
 926                         break;
 927
 928                 case LFUN_BUFFER_EXPORT:
 929                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
 930                         if (argument == "custom")
 931                                 lyx_view_->getDialogs().show("sendto");
 932                         else {
 933                                 Exporter::Export(lyx_view_->buffer(), argument, false);
 934                         }
 935                         break;
 936
 937                 case LFUN_BUFFER_EXPORT_CUSTOM: {
 938                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
 939                         string format_name;
 940                         string command = split(argument, format_name, ' ');
 941                         Format const * format = formats.getFormat(format_name);
 942                         if (!format) {
 943                                 lyxerr << "Format \"" << format_name
 944                                        << "\" not recognized!"
 945                                        << std::endl;
 946                                 break;
 947                         }
 948
 949                         Buffer * buffer = lyx_view_->buffer();
 950
 951                         // The name of the file created by the conversion process
 952                         string filename;
 953
 954                         // Output to filename
 955                         if (format->name() == "lyx") {
 956                                 string const latexname =
 957                                         buffer->getLatexName(false);
 958                                 filename = changeExtension(latexname,
 959                                                            format->extension());
 960                                 filename = addName(buffer->temppath(), filename);
 961
 962                                 if (!buffer->writeFile(FileName(filename)))
 963                                         break;
 964
 965                         } else {
 966                                 Exporter::Export(buffer, format_name, true, filename);
 967                         }
 968
 969                         // Substitute $$FName for filename
 970                         if (!contains(command, "$$FName"))
 971                                 command = "( " + command + " ) < $$FName";
 972                         command = subst(command, "$$FName", filename);
 973
 974                         // Execute the command in the background
 975                         Systemcall call;
 976                         call.startscript(Systemcall::DontWait, command);
 977                         break;
 978                 }
 979
 980                 case LFUN_BUFFER_PRINT: {
 981                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
 982                         string target;
 983                         string target_name;
 984                         string command = split(split(argument, target, ' '),
 985                                                target_name, ' ');
 986
 987                         if (target.empty()
 988                             || target_name.empty()
 989                             || command.empty()) {
 990                                 lyxerr << "Unable to parse \""
 991                                        << argument << '"' << std::endl;
 992                                 break;
 993                         }
 994                         if (target != "printer" && target != "file") {
 995                                 lyxerr << "Unrecognized target \""
 996                                        << target << '"' << std::endl;
 997                                 break;
 998                         }
 999
1000                         Buffer * buffer = lyx_view_->buffer();
1001
1002                         if (!Exporter::Export(buffer, "dvi", true)) {
1003                                 showPrintError(buffer->fileName());
1004                                 break;
1005                         }
1006
1007                         // Push directory path.
1008                         string const path = buffer->temppath();
1009                         support::Path p(path);
1010
1011                         // there are three cases here:
1012                         // 1. we print to a file
1013                         // 2. we print directly to a printer
1014                         // 3. we print using a spool command (print to file first)
1015                         Systemcall one;
1016                         int res = 0;
1017                         string const dviname =
1018                                 changeExtension(buffer->getLatexName(true),
1019                                                 "dvi");
1020
1021                         if (target == "printer") {
1022                                 if (!lyxrc.print_spool_command.empty()) {
1023                                         // case 3: print using a spool
1024                                         string const psname =
1025                                                 changeExtension(dviname,".ps");
1026                                         command += lyxrc.print_to_file
1027                                                 + quoteName(psname)
1028                                                 + ' '
1029                                                 + quoteName(dviname);
1030
1031                                         string command2 =
1032                                                 lyxrc.print_spool_command +' ';
1033                                         if (target_name != "default") {
1034                                                 command2 += lyxrc.print_spool_printerprefix
1035                                                         + target_name
1036                                                         + ' ';
1037                                         }
1038                                         command2 += quoteName(psname);
1039                                         // First run dvips.
1040                                         // If successful, then spool command
1041                                         res = one.startscript(
1042                                                 Systemcall::Wait,
1043                                                 command);
1044
1045                                         if (res == 0)
1046                                                 res = one.startscript(
1047                                                         Systemcall::DontWait,
1048                                                         command2);
1049                                 } else {
1050                                         // case 2: print directly to a printer
1051                                         res = one.startscript(
1052                                                 Systemcall::DontWait,
1053                                                 command + quoteName(dviname));
1054                                 }
1055
1056                         } else {
1057                                 // case 1: print to a file
1058                                 command += lyxrc.print_to_file
1059                                         + quoteName(makeAbsPath(target_name,
1060                                                                 path).toFilesystemEncoding())
1061                                         + ' '
1062                                         + quoteName(dviname);
1063                                 res = one.startscript(Systemcall::DontWait,
1064                                                       command);
1065                         }
1066
1067                         if (res != 0)
1068                                 showPrintError(buffer->fileName());
1069                         break;
1070                 }
1071
1072                 case LFUN_BUFFER_IMPORT:
1073                         doImport(argument);
1074                         break;
1075
1076                 case LFUN_LYX_QUIT:
1077                         // quitting is triggered by the gui code
1078                         // (leaving the event loop).
1079                         lyx_view_->message(from_utf8(N_("Exiting.")));
1080                         if (theBufferList().quitWriteAll())
1081                                 theApp()->gui().closeAllViews();
1082                         break;
1083
1084                 case LFUN_TOC_VIEW: {
1085                         BOOST_ASSERT(lyx_view_);
1086                         InsetCommandParams p("tableofcontents");
1087                         string const data = InsetCommandMailer::params2string("toc", p);
1088                         lyx_view_->getDialogs().show("toc", data, 0);
1089                         break;
1090                 }
1091
1092                 case LFUN_BUFFER_AUTO_SAVE:
1093                         autoSave(view());
1094                         break;
1095
1096                 case LFUN_RECONFIGURE:
1097                         BOOST_ASSERT(lyx_view_);
1098                         reconfigure(*lyx_view_);
1099                         break;
1100
1101                 case LFUN_HELP_OPEN: {
1102                         BOOST_ASSERT(lyx_view_);
1103                         string const arg = argument;
1104                         if (arg.empty()) {
1105                                 setErrorMessage(_("Missing argument"));
1106                                 break;
1107                         }
1108                         FileName const fname = i18nLibFileSearch("doc", arg, "lyx");
1109                         if (fname.empty()) {
1110                                 lyxerr << "LyX: unable to find documentation file `"
1111                                                          << arg << "'. Bad installation?" << endl;
1112                                 break;
1113                         }
1114                         lyx_view_->message(bformat(_("Opening help file %1$s..."),
1115                                 makeDisplayPath(fname.absFilename())));
1116                         lyx_view_->loadLyXFile(fname, false);
1117                         break;
1118                 }
1119
1120                 // --- version control -------------------------------
1121                 case LFUN_VC_REGISTER:
1122                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
1123                         if (!ensureBufferClean(view()))
1124                                 break;
1125                         if (!lyx_view_->buffer()->lyxvc().inUse()) {
1126                                 lyx_view_->buffer()->lyxvc().registrer();
1127                                 reloadBuffer();
1128                         }
1129                         updateFlags = Update::Force;
1130                         break;
1131
1132                 case LFUN_VC_CHECK_IN:
1133                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
1134                         if (!ensureBufferClean(view()))
1135                                 break;
1136                         if (lyx_view_->buffer()->lyxvc().inUse()
1137                                         && !lyx_view_->buffer()->isReadonly()) {
1138                                 lyx_view_->buffer()->lyxvc().checkIn();
1139                                 reloadBuffer();
1140                         }
1141                         break;
1142
1143                 case LFUN_VC_CHECK_OUT:
1144                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
1145                         if (!ensureBufferClean(view()))
1146                                 break;
1147                         if (lyx_view_->buffer()->lyxvc().inUse()
1148                                         && lyx_view_->buffer()->isReadonly()) {
1149                                 lyx_view_->buffer()->lyxvc().checkOut();
1150                                 reloadBuffer();
1151                         }
1152                         break;
1153
1154                 case LFUN_VC_REVERT:
1155                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
1156                         lyx_view_->buffer()->lyxvc().revert();
1157                         reloadBuffer();
1158                         break;
1159
1160                 case LFUN_VC_UNDO_LAST:
1161                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
1162                         lyx_view_->buffer()->lyxvc().undoLast();
1163                         reloadBuffer();
1164                         break;
1165
1166                 // --- buffers ----------------------------------------
1167                 case LFUN_BUFFER_SWITCH:
1168                         BOOST_ASSERT(lyx_view_);
1169                         lyx_view_->setBuffer(theBufferList().getBuffer(argument));
1170                         break;
1171
1172                 case LFUN_BUFFER_NEXT:
1173                         BOOST_ASSERT(lyx_view_);
1174                         lyx_view_->setBuffer(theBufferList().next(view()->buffer()));
1175                         break;
1176
1177                 case LFUN_BUFFER_PREVIOUS:
1178                         BOOST_ASSERT(lyx_view_);
1179                         lyx_view_->setBuffer(theBufferList().previous(view()->buffer()));
1180                         break;
1181
1182                 case LFUN_FILE_NEW:
1183                         BOOST_ASSERT(lyx_view_);
1184                         newFile(view(), argument);
1185                         break;
1186
1187                 case LFUN_FILE_OPEN:
1188                         BOOST_ASSERT(lyx_view_);
1189                         open(argument);
1190                         break;
1191
1192                 case LFUN_DROP_LAYOUTS_CHOICE:
1193                         BOOST_ASSERT(lyx_view_);
1194                         lyx_view_->getToolbars().openLayoutList();
1195                         break;
1196
1197                 case LFUN_MENU_OPEN:
1198                         BOOST_ASSERT(lyx_view_);
1199                         lyx_view_->getMenubar().openByName(from_utf8(argument));
1200                         break;
1201
1202                 // --- lyxserver commands ----------------------------
1203                 case LFUN_SERVER_GET_NAME:
1204                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
1205                         setMessage(from_utf8(lyx_view_->buffer()->fileName()));
1206                         lyxerr[Debug::INFO] << "FNAME["
1207                                                          << lyx_view_->buffer()->fileName()
1208                                                          << "] " << endl;
1209                         break;
1210
1211                 case LFUN_SERVER_NOTIFY:
1212                         dispatch_buffer = keyseq->print(false);
1213                         theLyXServer().notifyClient(to_utf8(dispatch_buffer));
1214                         break;
1215
1216                 case LFUN_SERVER_GOTO_FILE_ROW: {
1217                         BOOST_ASSERT(lyx_view_);
1218                         string file_name;
1219                         int row;
1220                         istringstream is(argument);
1221                         is >> file_name >> row;
1222                         if (prefixIs(file_name, package().temp_dir())) {
1223                                 // Needed by inverse dvi search. If it is a file
1224                                 // in tmpdir, call the apropriated function
1225                                 lyx_view_->setBuffer(theBufferList().getBufferFromTmp(file_name));
1226                         } else {
1227                                 // Must replace extension of the file to be .lyx
1228                                 // and get full path
1229                                 FileName const s = fileSearch(string(), changeExtension(file_name, ".lyx"), "lyx");
1230                                 // Either change buffer or load the file
1231                                 if (theBufferList().exists(s.absFilename())) {
1232                                         lyx_view_->setBuffer(theBufferList().getBuffer(s.absFilename()));
1233                                 } else {
1234                                         lyx_view_->loadLyXFile(s);
1235                                 }
1236                         }
1237
1238                         view()->setCursorFromRow(row);
1239
1240                         updateFlags = Update::FitCursor;
1241                         break;
1242                 }
1243
1244                 case LFUN_DIALOG_SHOW: {
1245                         BOOST_ASSERT(lyx_view_);
1246                         string const name = cmd.getArg(0);
1247                         string data = trim(to_utf8(cmd.argument()).substr(name.size()));
1248
1249                         if (name == "character") {
1250                                 data = freefont2string();
1251                                 if (!data.empty())
1252                                         lyx_view_->getDialogs().show("character", data);
1253                         } else if (name == "latexlog") {
1254                                 pair<Buffer::LogType, string> const logfile =
1255                                         lyx_view_->buffer()->getLogName();
1256                                 switch (logfile.first) {
1257                                 case Buffer::latexlog:
1258                                         data = "latex ";
1259                                         break;
1260                                 case Buffer::buildlog:
1261                                         data = "literate ";
1262                                         break;
1263                                 }
1264                                 data += LyXLex::quoteString(logfile.second);
1265                                 lyx_view_->getDialogs().show("log", data);
1266                         } else if (name == "vclog") {
1267                                 string const data = "vc " +
1268                                         LyXLex::quoteString(lyx_view_->buffer()->lyxvc().getLogFile());
1269                                 lyx_view_->getDialogs().show("log", data);
1270                         } else
1271                                 lyx_view_->getDialogs().show(name, data);
1272                         break;
1273                 }
1274
1275                 case LFUN_DIALOG_SHOW_NEW_INSET: {
1276                         BOOST_ASSERT(lyx_view_);
1277                         string const name = cmd.getArg(0);
1278                         string data = trim(to_utf8(cmd.argument()).substr(name.size()));
1279                         if (name == "bibitem" ||
1280                             name == "bibtex" ||
1281                             name == "index" ||
1282                             name == "label" ||
1283                             name == "nomenclature" ||
1284                             name == "ref" ||
1285                             name == "toc" ||
1286                             name == "url") {
1287                                 InsetCommandParams p(name);
1288                                 data = InsetCommandMailer::params2string(name, p);
1289                         } else if (name == "include") {
1290                                 // data is the include type: one of "include",
1291                                 // "input", "verbatiminput" or "verbatiminput*"
1292                                 if (data.empty())
1293                                         // default type is requested
1294                                         data = "include";
1295                                 InsetCommandParams p(data);
1296                                 data = InsetIncludeMailer::params2string(p);
1297                         } else if (name == "box") {
1298                                 // \c data == "Boxed" || "Frameless" etc
1299                                 InsetBoxParams p(data);
1300                                 data = InsetBoxMailer::params2string(p);
1301                         } else if (name == "branch") {
1302                                 InsetBranchParams p;
1303                                 data = InsetBranchMailer::params2string(p);
1304                         } else if (name == "citation") {
1305                                 InsetCommandParams p("cite");
1306                                 data = InsetCommandMailer::params2string(name, p);
1307                         } else if (name == "ert") {
1308                                 data = InsetERTMailer::params2string(InsetCollapsable::Open);
1309                         } else if (name == "external") {
1310                                 InsetExternalParams p;
1311                                 Buffer const & buffer = *lyx_view_->buffer();
1312                                 data = InsetExternalMailer::params2string(p, buffer);
1313                         } else if (name == "float") {
1314                                 InsetFloatParams p;
1315                                 data = InsetFloatMailer::params2string(p);
1316                         } else if (name == "graphics") {
1317                                 InsetGraphicsParams p;
1318                                 Buffer const & buffer = *lyx_view_->buffer();
1319                                 data = InsetGraphicsMailer::params2string(p, buffer);
1320                         } else if (name == "note") {
1321                                 InsetNoteParams p;
1322                                 data = InsetNoteMailer::params2string(p);
1323                         } else if (name == "vspace") {
1324                                 VSpace space;
1325                                 data = InsetVSpaceMailer::params2string(space);
1326                         } else if (name == "wrap") {
1327                                 InsetWrapParams p;
1328                                 data = InsetWrapMailer::params2string(p);
1329                         }
1330                         lyx_view_->getDialogs().show(name, data, 0);
1331                         break;
1332                 }
1333
1334                 case LFUN_DIALOG_UPDATE: {
1335                         BOOST_ASSERT(lyx_view_);
1336                         string const & name = argument;
1337                         // Can only update a dialog connected to an existing inset
1338                         InsetBase * inset = lyx_view_->getDialogs().getOpenInset(name);
1339                         if (inset) {
1340                                 FuncRequest fr(LFUN_INSET_DIALOG_UPDATE, cmd.argument());
1341                                 inset->dispatch(view()->cursor(), fr);
1342                         } else if (name == "paragraph") {
1343                                 dispatch(FuncRequest(LFUN_PARAGRAPH_UPDATE));
1344                         } else if (name == "prefs") {
1345                                 lyx_view_->getDialogs().update(name, string());
1346                         }
1347                         break;
1348                 }
1349
1350                 case LFUN_DIALOG_HIDE:
1351                         Dialogs::hide(argument, 0);
1352                         break;
1353
1354                 case LFUN_DIALOG_DISCONNECT_INSET:
1355                         BOOST_ASSERT(lyx_view_);
1356                         lyx_view_->getDialogs().disconnect(argument);
1357                         break;
1358
1359
1360                 case LFUN_CITATION_INSERT: {
1361                         BOOST_ASSERT(lyx_view_);
1362                         if (!argument.empty()) {
1363                                 // we can have one optional argument, delimited by '|'
1364                                 // citation-insert <key>|<text_before>
1365                                 // this should be enhanced to also support text_after
1366                                 // and citation style
1367                                 string arg = argument;
1368                                 string opt1;
1369                                 if (contains(argument, "|")) {
1370                                         arg = token(argument, '|', 0);
1371                                         opt1 = '[' + token(argument, '|', 1) + ']';
1372                                 }
1373                                 std::ostringstream os;
1374                                 os << "citation LatexCommand\n"
1375                                    << "\\cite" << opt1 << "{" << arg << "}\n"
1376                                    << "\\end_inset";
1377                                 FuncRequest fr(LFUN_INSET_INSERT, os.str());
1378                                 dispatch(fr);
1379                         } else
1380                                 dispatch(FuncRequest(LFUN_DIALOG_SHOW, "citation"));
1381                         break;
1382                 }
1383
1384                 case LFUN_BUFFER_CHILD_OPEN: {
1385                         BOOST_ASSERT(lyx_view_);
1386                         FileName const filename =
1387                                 makeAbsPath(argument, lyx_view_->buffer()->filePath());
1388                         // FIXME Should use bformat
1389                         setMessage(_("Opening child document ") +
1390                                          makeDisplayPath(filename.absFilename()) + "...");
1391                         view()->saveBookmark(false);
1392                         string const parentfilename = lyx_view_->buffer()->fileName();
1393                         if (theBufferList().exists(filename.absFilename()))
1394                                 lyx_view_->setBuffer(theBufferList().getBuffer(filename.absFilename()));
1395                         else
1396                                 lyx_view_->loadLyXFile(filename);
1397                         // Set the parent name of the child document.
1398                         // This makes insertion of citations and references in the child work,
1399                         // when the target is in the parent or another child document.
1400                         lyx_view_->buffer()->setParentName(parentfilename);
1401                         break;
1402                 }
1403
1404                 case LFUN_TOGGLE_CURSOR_FOLLOWS_SCROLLBAR:
1405                         BOOST_ASSERT(lyx_view_);
1406                         lyxrc.cursor_follows_scrollbar = !lyxrc.cursor_follows_scrollbar;
1407                         break;
1408
1409                 case LFUN_KEYMAP_OFF:
1410                         BOOST_ASSERT(lyx_view_);
1411                         lyx_view_->view()->getIntl().keyMapOn(false);
1412                         break;
1413
1414                 case LFUN_KEYMAP_PRIMARY:
1415                         BOOST_ASSERT(lyx_view_);
1416                         lyx_view_->view()->getIntl().keyMapPrim();
1417                         break;
1418
1419                 case LFUN_KEYMAP_SECONDARY:
1420                         BOOST_ASSERT(lyx_view_);
1421                         lyx_view_->view()->getIntl().keyMapSec();
1422                         break;
1423
1424                 case LFUN_KEYMAP_TOGGLE:
1425                         BOOST_ASSERT(lyx_view_);
1426                         lyx_view_->view()->getIntl().toggleKeyMap();
1427                         break;
1428
1429                 case LFUN_REPEAT: {
1430                         // repeat command
1431                         string countstr;
1432                         string rest = split(argument, countstr, ' ');
1433                         istringstream is(countstr);
1434                         int count = 0;
1435                         is >> count;
1436                         lyxerr << "repeat: count: " << count << " cmd: " << rest << endl;
1437                         for (int i = 0; i < count; ++i)
1438                                 dispatch(lyxaction.lookupFunc(rest));
1439                         break;
1440                 }
1441
1442                 case LFUN_COMMAND_SEQUENCE: {
1443                         // argument contains ';'-terminated commands
1444                         string arg = argument;
1445                         while (!arg.empty()) {
1446                                 string first;
1447                                 arg = split(arg, first, ';');
1448                                 FuncRequest func(lyxaction.lookupFunc(first));
1449                                 func.origin = cmd.origin;
1450                                 dispatch(func);
1451                         }
1452                         break;
1453                 }
1454
1455                 case LFUN_PREFERENCES_SAVE: {
1456                         lyxrc.write(makeAbsPath("preferences",
1457                                                 package().user_support()),
1458                                     false);
1459                         break;
1460                 }
1461
1462                 case LFUN_SCREEN_FONT_UPDATE:
1463                         BOOST_ASSERT(lyx_view_);
1464                         // handle the screen font changes.
1465                         lyxrc.set_font_norm_type();
1466                         theFontLoader().update();
1467                         /// FIXME: only the current view will be updated. the Gui
1468                         /// class is able to furnish the list of views.
1469                         updateFlags = Update::Force;
1470                         break;
1471
1472                 case LFUN_SET_COLOR: {
1473                         string lyx_name;
1474                         string const x11_name = split(argument, lyx_name, ' ');
1475                         if (lyx_name.empty() || x11_name.empty()) {
1476                                 setErrorMessage(_("Syntax: set-color <lyx_name>"
1477                                                         " <x11_name>"));
1478                                 break;
1479                         }
1480
1481                         bool const graphicsbg_changed =
1482                                 (lyx_name == lcolor.getLyXName(LColor::graphicsbg) &&
1483                                  x11_name != lcolor.getX11Name(LColor::graphicsbg));
1484
1485                         if (!lcolor.setColor(lyx_name, x11_name)) {
1486                                 setErrorMessage(
1487                                                 bformat(_("Set-color \"%1$s\" failed "
1488                                                                        "- color is undefined or "
1489                                                                        "may not be redefined"),
1490                                                                            from_utf8(lyx_name)));
1491                                 break;
1492                         }
1493
1494                         theApp()->updateColor(lcolor.getFromLyXName(lyx_name));
1495
1496                         if (graphicsbg_changed) {
1497 #ifdef WITH_WARNINGS
1498 #warning FIXME!! The graphics cache no longer has a changeDisplay method.
1499 #endif
1500 #if 0
1501                                 graphics::GCache::get().changeDisplay(true);
1502 #endif
1503                         }
1504                         break;
1505                 }
1506
1507                 case LFUN_MESSAGE:
1508                         BOOST_ASSERT(lyx_view_);
1509                         lyx_view_->message(from_utf8(argument));
1510                         break;
1511
1512                 case LFUN_EXTERNAL_EDIT: {
1513                         BOOST_ASSERT(lyx_view_);
1514                         FuncRequest fr(action, argument);
1515                         InsetExternal().dispatch(view()->cursor(), fr);
1516                         break;
1517                 }
1518
1519                 case LFUN_GRAPHICS_EDIT: {
1520                         FuncRequest fr(action, argument);
1521                         InsetGraphics().dispatch(view()->cursor(), fr);
1522                         break;
1523                 }
1524
1525                 case LFUN_INSET_APPLY: {
1526                         BOOST_ASSERT(lyx_view_);
1527                         string const name = cmd.getArg(0);
1528                         InsetBase * inset = lyx_view_->getDialogs().getOpenInset(name);
1529                         if (inset) {
1530                                 FuncRequest fr(LFUN_INSET_MODIFY, argument);
1531                                 inset->dispatch(view()->cursor(), fr);
1532                         } else {
1533                                 FuncRequest fr(LFUN_INSET_INSERT, argument);
1534                                 dispatch(fr);
1535                         }
1536                         // ideally, the update flag should be set by the insets,
1537                         // but this is not possible currently
1538                         updateFlags = Update::Force | Update::FitCursor;
1539                         break;
1540                 }
1541
1542                 case LFUN_ALL_INSETS_TOGGLE: {
1543                         BOOST_ASSERT(lyx_view_);
1544                         string action;
1545                         string const name = split(argument, action, ' ');
1546                         InsetBase::Code const inset_code =
1547                                 InsetBase::translate(name);
1548
1549                         LCursor & cur = view()->cursor();
1550                         FuncRequest fr(LFUN_INSET_TOGGLE, action);
1551
1552                         InsetBase & inset = lyx_view_->buffer()->inset();
1553                         InsetIterator it  = inset_iterator_begin(inset);
1554                         InsetIterator const end = inset_iterator_end(inset);
1555                         for (; it != end; ++it) {
1556                                 if (inset_code == InsetBase::NO_CODE
1557                                     || inset_code == it->lyxCode()) {
1558                                         LCursor tmpcur = cur;
1559                                         tmpcur.pushLeft(*it);
1560                                         it->dispatch(tmpcur, fr);
1561                                 }
1562                         }
1563                         updateFlags = Update::Force | Update::FitCursor;
1564                         break;
1565                 }
1566
1567                 case LFUN_BUFFER_LANGUAGE: {
1568                         BOOST_ASSERT(lyx_view_);
1569                         Buffer & buffer = *lyx_view_->buffer();
1570                         Language const * oldL = buffer.params().language;
1571                         Language const * newL = languages.getLanguage(argument);
1572                         if (!newL || oldL == newL)
1573                                 break;
1574
1575                         if (oldL->rightToLeft() == newL->rightToLeft()
1576                             && !buffer.isMultiLingual())
1577                                 buffer.changeLanguage(oldL, newL);
1578                         else
1579                                 buffer.updateDocLang(newL);
1580                         break;
1581                 }
1582
1583                 case LFUN_BUFFER_SAVE_AS_DEFAULT: {
1584                         string const fname =
1585                                 addName(addPath(package().user_support(), "templates/"),
1586                                         "defaults.lyx");
1587                         Buffer defaults(fname);
1588
1589                         istringstream ss(argument);
1590                         LyXLex lex(0,0);
1591                         lex.setStream(ss);
1592                         int const unknown_tokens = defaults.readHeader(lex);
1593
1594                         if (unknown_tokens != 0) {
1595                                 lyxerr << "Warning in LFUN_BUFFER_SAVE_AS_DEFAULT!\n"
1596                                        << unknown_tokens << " unknown token"
1597                                        << (unknown_tokens == 1 ? "" : "s")
1598                                        << endl;
1599                         }
1600
1601                         if (defaults.writeFile(FileName(defaults.fileName())))
1602                                 // FIXME Should use bformat
1603                                 setMessage(_("Document defaults saved in ")
1604                                            + makeDisplayPath(fname));
1605                         else
1606                                 setErrorMessage(_("Unable to save document defaults"));
1607                         break;
1608                 }
1609
1610                 case LFUN_BUFFER_PARAMS_APPLY: {
1611                         BOOST_ASSERT(lyx_view_);
1612                         biblio::CiteEngine const engine =
1613                                 lyx_view_->buffer()->params().cite_engine;
1614
1615                         istringstream ss(argument);
1616                         LyXLex lex(0,0);
1617                         lex.setStream(ss);
1618                         int const unknown_tokens =
1619                                 lyx_view_->buffer()->readHeader(lex);
1620
1621                         if (unknown_tokens != 0) {
1622                                 lyxerr << "Warning in LFUN_BUFFER_PARAMS_APPLY!\n"
1623                                        << unknown_tokens << " unknown token"
1624                                        << (unknown_tokens == 1 ? "" : "s")
1625                                        << endl;
1626                         }
1627                         if (engine == lyx_view_->buffer()->params().cite_engine)
1628                                 break;
1629
1630                         LCursor & cur = view()->cursor();
1631                         FuncRequest fr(LFUN_INSET_REFRESH);
1632
1633                         InsetBase & inset = lyx_view_->buffer()->inset();
1634                         InsetIterator it  = inset_iterator_begin(inset);
1635                         InsetIterator const end = inset_iterator_end(inset);
1636                         for (; it != end; ++it)
1637                                 if (it->lyxCode() == InsetBase::CITE_CODE)
1638                                         it->dispatch(cur, fr);
1639                         break;
1640                 }
1641
1642                 case LFUN_TEXTCLASS_APPLY: {
1643                         BOOST_ASSERT(lyx_view_);
1644                         Buffer * buffer = lyx_view_->buffer();
1645
1646                         textclass_type const old_class =
1647                                 buffer->params().textclass;
1648
1649                         loadTextclass(argument);
1650
1651                         std::pair<bool, textclass_type> const tc_pair =
1652                                 textclasslist.numberOfClass(argument);
1653
1654                         if (!tc_pair.first)
1655                                 break;
1656
1657                         textclass_type const new_class = tc_pair.second;
1658                         if (old_class == new_class)
1659                                 // nothing to do
1660                                 break;
1661
1662                         lyx_view_->message(_("Converting document to new document class..."));
1663                         recordUndoFullDocument(view());
1664                         buffer->params().textclass = new_class;
1665                         StableDocIterator backcur(view()->cursor());
1666                         ErrorList & el = buffer->errorList("Class Switch");
1667                         cap::switchBetweenClasses(
1668                                 old_class, new_class,
1669                                 static_cast<InsetText &>(buffer->inset()), el);
1670
1671                         view()->setCursor(backcur.asDocIterator(&(buffer->inset())));
1672
1673                         buffer->errors("Class Switch");
1674                         updateLabels(*buffer);
1675                         updateFlags = Update::Force | Update::FitCursor;
1676                         break;
1677                 }
1678
1679                 case LFUN_TEXTCLASS_LOAD:
1680                         loadTextclass(argument);
1681                         break;
1682
1683                 case LFUN_LYXRC_APPLY: {
1684                         LyXRC const lyxrc_orig = lyxrc;
1685
1686                         istringstream ss(argument);
1687                         bool const success = lyxrc.read(ss) == 0;
1688
1689                         if (!success) {
1690                                 lyxerr << "Warning in LFUN_LYXRC_APPLY!\n"
1691                                        << "Unable to read lyxrc data"
1692                                        << endl;
1693                                 break;
1694                         }
1695
1696                         actOnUpdatedPrefs(lyxrc_orig, lyxrc);
1697
1698                         /// We force the redraw in any case because there might be
1699                         /// some screen font changes.
1700                         /// FIXME: only the current view will be updated. the Gui
1701                         /// class is able to furnish the list of views.
1702                         updateFlags = Update::Force;
1703                         break;
1704                 }
1705
1706                 case LFUN_WINDOW_NEW:
1707                         LyX::ref().newLyXView();
1708                         break;
1709
1710                 case LFUN_WINDOW_CLOSE:
1711                         BOOST_ASSERT(lyx_view_);
1712                         BOOST_ASSERT(theApp());
1713                         // update bookmark pit of the current buffer before window close
1714                         for (size_t i = 0; i < LyX::ref().session().bookmarks().size(); ++i)
1715                                 gotoBookmark(i+1, false, false);
1716                         // ask the user for saving changes or cancel quit
1717                         if (!theBufferList().quitWriteAll())
1718                                 break;
1719                         lyx_view_->close();
1720                         return;
1721
1722                 case LFUN_BOOKMARK_GOTO:
1723                         // go to bookmark, open unopened file and switch to buffer if necessary
1724                         gotoBookmark(convert<unsigned int>(to_utf8(cmd.argument())), true, true);
1725                         break;
1726
1727                 case LFUN_BOOKMARK_CLEAR:
1728                         LyX::ref().session().bookmarks().clear();
1729                         break;
1730
1731                 case LFUN_TOOLBAR_TOGGLE_STATE:
1732                         lyx_view_->toggleToolbarState(argument);
1733                         break;
1734
1735                 default: {
1736                         BOOST_ASSERT(lyx_view_);
1737                         view()->cursor().dispatch(cmd);
1738                         updateFlags = view()->cursor().result().update();
1739                         if (!view()->cursor().result().dispatched())
1740                                 updateFlags = view()->dispatch(cmd);
1741                         break;
1742                 }
1743                 }
1744
1745                 if (lyx_view_ && view()->buffer()) {
1746                         // BufferView::update() updates the ViewMetricsInfo and
1747                         // also initializes the position cache for all insets in
1748                         // (at least partially) visible top-level paragraphs.
1749                         // We will redraw the screen only if needed.
1750                         if (view()->update(updateFlags)) {
1751                                 // Buffer::changed() signals that a repaint is needed.
1752                                 // The frontend (WorkArea) knows which area to repaint
1753                                 // thanks to the ViewMetricsInfo updated above.
1754                                 view()->buffer()->changed();
1755                         }
1756
1757                         lyx_view_->updateStatusBar();
1758
1759                         // if we executed a mutating lfun, mark the buffer as dirty
1760                         if (flag.enabled()
1761                             && !lyxaction.funcHasFlag(action, LyXAction::NoBuffer)
1762                             && !lyxaction.funcHasFlag(action, LyXAction::ReadOnly))
1763                                 view()->buffer()->markDirty();
1764
1765                         if (view()->cursor().inTexted()) {
1766                                 lyx_view_->updateLayoutChoice();
1767                         }
1768                 }
1769         }
1770         if (!quitting) {
1771                 lyx_view_->updateMenubar();
1772                 lyx_view_->updateToolbars();
1773                 sendDispatchMessage(getMessage(), cmd);
1774         }
1775 }
1776
1777
1778 void LyXFunc::sendDispatchMessage(docstring const & msg, FuncRequest const & cmd)
1779 {
1780         const bool verbose = (cmd.origin == FuncRequest::MENU
1781                               || cmd.origin == FuncRequest::TOOLBAR
1782                               || cmd.origin == FuncRequest::COMMANDBUFFER);
1783
1784         if (cmd.action == LFUN_SELF_INSERT || !verbose) {
1785                 lyxerr[Debug::ACTION] << "dispatch msg is " << to_utf8(msg) << endl;
1786                 if (!msg.empty())
1787                         lyx_view_->message(msg);
1788                 return;
1789         }
1790
1791         docstring dispatch_msg = msg;
1792         if (!dispatch_msg.empty())
1793                 dispatch_msg += ' ';
1794
1795         docstring comname = from_utf8(lyxaction.getActionName(cmd.action));
1796
1797         bool argsadded = false;
1798
1799         if (!cmd.argument().empty()) {
1800                 if (cmd.action != LFUN_UNKNOWN_ACTION) {
1801                         comname += ' ' + cmd.argument();
1802                         argsadded = true;
1803                 }
1804         }
1805
1806         docstring const shortcuts = theTopLevelKeymap().printbindings(cmd);
1807
1808         if (!shortcuts.empty())
1809                 comname += ": " + shortcuts;
1810         else if (!argsadded && !cmd.argument().empty())
1811                 comname += ' ' + cmd.argument();
1812
1813         if (!comname.empty()) {
1814                 comname = rtrim(comname);
1815                 dispatch_msg += '(' + rtrim(comname) + ')';
1816         }
1817
1818         lyxerr[Debug::ACTION] << "verbose dispatch msg "
1819                 << to_utf8(dispatch_msg) << endl;
1820         if (!dispatch_msg.empty())
1821                 lyx_view_->message(dispatch_msg);
1822 }
1823
1824
1825 void LyXFunc::menuNew(string const & name, bool fromTemplate)
1826 {
1827         // FIXME: initpath is not used. What to do?
1828         string initpath = lyxrc.document_path;
1829         string filename(name);
1830
1831         if (view()->buffer()) {
1832                 string const trypath = lyx_view_->buffer()->filePath();
1833                 // If directory is writeable, use this as default.
1834                 if (isDirWriteable(FileName(trypath)))
1835                         initpath = trypath;
1836         }
1837
1838         static int newfile_number;
1839
1840         if (filename.empty()) {
1841                 filename = addName(lyxrc.document_path,
1842                             "newfile" + convert<string>(++newfile_number) + ".lyx");
1843                 while (theBufferList().exists(filename) ||
1844                        fs::is_readable(FileName(filename).toFilesystemEncoding())) {
1845                         ++newfile_number;
1846                         filename = addName(lyxrc.document_path,
1847                                            "newfile" +  convert<string>(newfile_number) +
1848                                     ".lyx");
1849                 }
1850         }
1851
1852         // The template stuff
1853         string templname;
1854         if (fromTemplate) {
1855                 FileDialog fileDlg(_("Select template file"),
1856                         LFUN_SELECT_FILE_SYNC,
1857                         make_pair(_("Documents|#o#O"), from_utf8(lyxrc.document_path)),
1858                         make_pair(_("Templates|#T#t"), from_utf8(lyxrc.template_path)));
1859
1860                 FileDialog::Result result =
1861                         fileDlg.open(from_utf8(lyxrc.template_path),
1862                                      FileFilterList(_("LyX Documents (*.lyx)")),
1863                                      docstring());
1864
1865                 if (result.first == FileDialog::Later)
1866                         return;
1867                 if (result.second.empty())
1868                         return;
1869                 templname = to_utf8(result.second);
1870         }
1871
1872         Buffer * const b = newFile(filename, templname, !name.empty());
1873         if (b)
1874                 lyx_view_->setBuffer(b);
1875 }
1876
1877
1878 void LyXFunc::open(string const & fname)
1879 {
1880         string initpath = lyxrc.document_path;
1881
1882         if (view()->buffer()) {
1883                 string const trypath = lyx_view_->buffer()->filePath();
1884                 // If directory is writeable, use this as default.
1885                 if (isDirWriteable(FileName(trypath)))
1886                         initpath = trypath;
1887         }
1888
1889         string filename;
1890
1891         if (fname.empty()) {
1892                 FileDialog fileDlg(_("Select document to open"),
1893                         LFUN_FILE_OPEN,
1894                         make_pair(_("Documents|#o#O"), from_utf8(lyxrc.document_path)),
1895                         make_pair(_("Examples|#E#e"), from_utf8(addPath(package().system_support(), "examples"))));
1896
1897                 FileDialog::Result result =
1898                         fileDlg.open(from_utf8(initpath),
1899                                      FileFilterList(_("LyX Documents (*.lyx)")),
1900                                      docstring());
1901
1902                 if (result.first == FileDialog::Later)
1903                         return;
1904
1905                 filename = to_utf8(result.second);
1906
1907                 // check selected filename
1908                 if (filename.empty()) {
1909                         lyx_view_->message(_("Canceled."));
1910                         return;
1911                 }
1912         } else
1913                 filename = fname;
1914
1915         // get absolute path of file and add ".lyx" to the filename if
1916         // necessary
1917         FileName const fullname = fileSearch(string(), filename, "lyx");
1918         if (!fullname.empty())
1919                 filename = fullname.absFilename();
1920
1921         // if the file doesn't exist, let the user create one
1922         if (!fs::exists(fullname.toFilesystemEncoding())) {
1923                 // the user specifically chose this name. Believe him.
1924                 Buffer * const b = newFile(filename, string(), true);
1925                 if (b)
1926                         lyx_view_->setBuffer(b);
1927                 return;
1928         }
1929
1930         docstring const disp_fn = makeDisplayPath(filename);
1931         lyx_view_->message(bformat(_("Opening document %1$s..."), disp_fn));
1932
1933         docstring str2;
1934         if (lyx_view_->loadLyXFile(fullname)) {
1935                 str2 = bformat(_("Document %1$s opened."), disp_fn);
1936         } else {
1937                 str2 = bformat(_("Could not open document %1$s"), disp_fn);
1938         }
1939         lyx_view_->message(str2);
1940 }
1941
1942
1943 void LyXFunc::doImport(string const & argument)
1944 {
1945         string format;
1946         string filename = split(argument, format, ' ');
1947
1948         lyxerr[Debug::INFO] << "LyXFunc::doImport: " << format
1949                             << " file: " << filename << endl;
1950
1951         // need user interaction
1952         if (filename.empty()) {
1953                 string initpath = lyxrc.document_path;
1954
1955                 if (view()->buffer()) {
1956                         string const trypath = lyx_view_->buffer()->filePath();
1957                         // If directory is writeable, use this as default.
1958                         if (isDirWriteable(FileName(trypath)))
1959                                 initpath = trypath;
1960                 }
1961
1962                 docstring const text = bformat(_("Select %1$s file to import"),
1963                         formats.prettyName(format));
1964
1965                 FileDialog fileDlg(text,
1966                         LFUN_BUFFER_IMPORT,
1967                         make_pair(_("Documents|#o#O"), from_utf8(lyxrc.document_path)),
1968                         make_pair(_("Examples|#E#e"),
1969                                   from_utf8(addPath(package().system_support(), "examples"))));
1970
1971                 docstring filter = formats.prettyName(format);
1972                 filter += " (*.";
1973                 // FIXME UNICODE
1974                 filter += from_utf8(formats.extension(format));
1975                 filter += ')';
1976
1977                 FileDialog::Result result =
1978                         fileDlg.open(from_utf8(initpath),
1979                                      FileFilterList(filter),
1980                                      docstring());
1981
1982                 if (result.first == FileDialog::Later)
1983                         return;
1984
1985                 filename = to_utf8(result.second);
1986
1987                 // check selected filename
1988                 if (filename.empty())
1989                         lyx_view_->message(_("Canceled."));
1990         }
1991
1992         if (filename.empty())
1993                 return;
1994
1995         // get absolute path of file
1996         FileName const fullname(makeAbsPath(filename));
1997
1998         FileName const lyxfile(changeExtension(fullname.absFilename(), ".lyx"));
1999
2000         // Check if the document already is open
2001         if (use_gui && theBufferList().exists(lyxfile.absFilename())) {
2002                 if (!theBufferList().close(theBufferList().getBuffer(lyxfile.absFilename()), true)) {
2003                         lyx_view_->message(_("Canceled."));
2004                         return;
2005                 }
2006         }
2007
2008         // if the file exists already, and we didn't do
2009         // -i lyx thefile.lyx, warn
2010         if (fs::exists(lyxfile.toFilesystemEncoding()) && fullname != lyxfile) {
2011                 docstring const file = makeDisplayPath(lyxfile.absFilename(), 30);
2012
2013                 docstring text = bformat(_("The document %1$s already exists.\n\n"
2014                                                      "Do you want to over-write that document?"), file);
2015                 int const ret = Alert::prompt(_("Over-write document?"),
2016                         text, 0, 1, _("&Over-write"), _("&Cancel"));
2017
2018                 if (ret == 1) {
2019                         lyx_view_->message(_("Canceled."));
2020                         return;
2021                 }
2022         }
2023
2024         ErrorList errorList;
2025         Importer::Import(lyx_view_, fullname, format, errorList);
2026         // FIXME (Abdel 12/08/06): Is there a need to display the error list here?
2027 }
2028
2029
2030 void LyXFunc::closeBuffer()
2031 {
2032         // save current cursor position
2033         LyX::ref().session().lastFilePos().save(FileName(lyx_view_->buffer()->fileName()),
2034                 boost::tie(view()->cursor().pit(), view()->cursor().pos()) );
2035         // goto bookmark to update bookmark pit.
2036         for (size_t i = 0; i < LyX::ref().session().bookmarks().size(); ++i)
2037                 gotoBookmark(i+1, false, false);
2038         if (theBufferList().close(lyx_view_->buffer(), true) && !quitting) {
2039                 if (theBufferList().empty()) {
2040                         // need this otherwise SEGV may occur while
2041                         // trying to set variables that don't exist
2042                         // since there's no current buffer
2043                         lyx_view_->getDialogs().hideBufferDependent();
2044                 } else {
2045                         lyx_view_->setBuffer(theBufferList().first());
2046                 }
2047         }
2048 }
2049
2050
2051 void LyXFunc::reloadBuffer()
2052 {
2053         FileName filename(lyx_view_->buffer()->fileName());
2054         closeBuffer();
2055         lyx_view_->loadLyXFile(filename);
2056 }
2057
2058 // Each "lyx_view_" should have it's own message method. lyxview and
2059 // the minibuffer would use the minibuffer, but lyxserver would
2060 // send an ERROR signal to its client.  Alejandro 970603
2061 // This function is bit problematic when it comes to NLS, to make the
2062 // lyx servers client be language indepenent we must not translate
2063 // strings sent to this func.
2064 void LyXFunc::setErrorMessage(docstring const & m) const
2065 {
2066         dispatch_buffer = m;
2067         errorstat = true;
2068 }
2069
2070
2071 void LyXFunc::setMessage(docstring const & m) const
2072 {
2073         dispatch_buffer = m;
2074 }
2075
2076
2077 docstring const LyXFunc::viewStatusMessage()
2078 {
2079         // When meta-fake key is pressed, show the key sequence so far + "M-".
2080         if (wasMetaKey())
2081                 return keyseq->print(true) + "M-";
2082
2083         // Else, when a non-complete key sequence is pressed,
2084         // show the available options.
2085         if (keyseq->length() > 0 && !keyseq->deleted())
2086                 return keyseq->printOptions(true);
2087
2088         if (!view()->buffer())
2089                 return _("Welcome to LyX!");
2090
2091         return view()->cursor().currentState();
2092 }
2093
2094
2095 BufferView * LyXFunc::view() const
2096 {
2097         BOOST_ASSERT(lyx_view_);
2098         return lyx_view_->view();
2099 }
2100
2101
2102 bool LyXFunc::wasMetaKey() const
2103 {
2104         return (meta_fake_bit != key_modifier::none);
2105 }
2106
2107
2108 namespace {
2109
2110 void actOnUpdatedPrefs(LyXRC const & lyxrc_orig, LyXRC const & lyxrc_new)
2111 {
2112         // Why the switch you might ask. It is a trick to ensure that all
2113         // the elements in the LyXRCTags enum is handled. As you can see
2114         // there are no breaks at all. So it is just a huge fall-through.
2115         // The nice thing is that we will get a warning from the compiler
2116         // if we forget an element.
2117         LyXRC::LyXRCTags tag = LyXRC::RC_LAST;
2118         switch (tag) {
2119         case LyXRC::RC_ACCEPT_COMPOUND:
2120         case LyXRC::RC_ALT_LANG:
2121         case LyXRC::RC_PLAINTEXT_ROFF_COMMAND:
2122         case LyXRC::RC_PLAINTEXT_LINELEN:
2123         case LyXRC::RC_AUTOREGIONDELETE:
2124         case LyXRC::RC_AUTORESET_OPTIONS:
2125         case LyXRC::RC_AUTOSAVE:
2126         case LyXRC::RC_AUTO_NUMBER:
2127         case LyXRC::RC_BACKUPDIR_PATH:
2128         case LyXRC::RC_BIBTEX_COMMAND:
2129         case LyXRC::RC_BINDFILE:
2130         case LyXRC::RC_CHECKLASTFILES:
2131         case LyXRC::RC_USELASTFILEPOS:
2132         case LyXRC::RC_LOADSESSION:
2133         case LyXRC::RC_CHKTEX_COMMAND:
2134         case LyXRC::RC_CONVERTER:
2135         case LyXRC::RC_CONVERTER_CACHE_MAXAGE:
2136         case LyXRC::RC_COPIER:
2137         case LyXRC::RC_CURSOR_FOLLOWS_SCROLLBAR:
2138         case LyXRC::RC_CUSTOM_EXPORT_COMMAND:
2139         case LyXRC::RC_CUSTOM_EXPORT_FORMAT:
2140         case LyXRC::RC_DATE_INSERT_FORMAT:
2141         case LyXRC::RC_DEFAULT_LANGUAGE:
2142         case LyXRC::RC_DEFAULT_PAPERSIZE:
2143         case LyXRC::RC_DIALOGS_ICONIFY_WITH_MAIN:
2144         case LyXRC::RC_DISPLAY_GRAPHICS:
2145         case LyXRC::RC_DOCUMENTPATH:
2146                 if (lyxrc_orig.document_path != lyxrc_new.document_path) {
2147                         string const encoded = FileName(
2148                                 lyxrc_new.document_path).toFilesystemEncoding();
2149                         if (fs::exists(encoded) && fs::is_directory(encoded))
2150                                 support::package().document_dir() = lyxrc.document_path;
2151                 }
2152         case LyXRC::RC_ESC_CHARS:
2153         case LyXRC::RC_FONT_ENCODING:
2154         case LyXRC::RC_FORMAT:
2155         case LyXRC::RC_INDEX_COMMAND:
2156         case LyXRC::RC_INPUT:
2157         case LyXRC::RC_KBMAP:
2158         case LyXRC::RC_KBMAP_PRIMARY:
2159         case LyXRC::RC_KBMAP_SECONDARY:
2160         case LyXRC::RC_LABEL_INIT_LENGTH:
2161         case LyXRC::RC_LANGUAGE_AUTO_BEGIN:
2162         case LyXRC::RC_LANGUAGE_AUTO_END:
2163         case LyXRC::RC_LANGUAGE_COMMAND_BEGIN:
2164         case LyXRC::RC_LANGUAGE_COMMAND_END:
2165         case LyXRC::RC_LANGUAGE_COMMAND_LOCAL:
2166         case LyXRC::RC_LANGUAGE_GLOBAL_OPTIONS:
2167         case LyXRC::RC_LANGUAGE_PACKAGE:
2168         case LyXRC::RC_LANGUAGE_USE_BABEL:
2169         case LyXRC::RC_MAKE_BACKUP:
2170         case LyXRC::RC_MARK_FOREIGN_LANGUAGE:
2171         case LyXRC::RC_NUMLASTFILES:
2172         case LyXRC::RC_PATH_PREFIX:
2173                 if (lyxrc_orig.path_prefix != lyxrc_new.path_prefix) {
2174                         support::prependEnvPath("PATH", lyxrc.path_prefix);
2175                 }
2176         case LyXRC::RC_PERS_DICT:
2177         case LyXRC::RC_POPUP_BOLD_FONT:
2178         case LyXRC::RC_POPUP_FONT_ENCODING:
2179         case LyXRC::RC_POPUP_NORMAL_FONT:
2180         case LyXRC::RC_PREVIEW:
2181         case LyXRC::RC_PREVIEW_HASHED_LABELS:
2182         case LyXRC::RC_PREVIEW_SCALE_FACTOR:
2183         case LyXRC::RC_PRINTCOLLCOPIESFLAG:
2184         case LyXRC::RC_PRINTCOPIESFLAG:
2185         case LyXRC::RC_PRINTER:
2186         case LyXRC::RC_PRINTEVENPAGEFLAG:
2187         case LyXRC::RC_PRINTEXSTRAOPTIONS:
2188         case LyXRC::RC_PRINTFILEEXTENSION:
2189         case LyXRC::RC_PRINTLANDSCAPEFLAG:
2190         case LyXRC::RC_PRINTODDPAGEFLAG:
2191         case LyXRC::RC_PRINTPAGERANGEFLAG:
2192         case LyXRC::RC_PRINTPAPERDIMENSIONFLAG:
2193         case LyXRC::RC_PRINTPAPERFLAG:
2194         case LyXRC::RC_PRINTREVERSEFLAG:
2195         case LyXRC::RC_PRINTSPOOL_COMMAND:
2196         case LyXRC::RC_PRINTSPOOL_PRINTERPREFIX:
2197         case LyXRC::RC_PRINTTOFILE:
2198         case LyXRC::RC_PRINTTOPRINTER:
2199         case LyXRC::RC_PRINT_ADAPTOUTPUT:
2200         case LyXRC::RC_PRINT_COMMAND:
2201         case LyXRC::RC_RTL_SUPPORT:
2202         case LyXRC::RC_SCREEN_DPI:
2203         case LyXRC::RC_SCREEN_FONT_ENCODING:
2204         case LyXRC::RC_SCREEN_FONT_ROMAN:
2205         case LyXRC::RC_SCREEN_FONT_ROMAN_FOUNDRY:
2206         case LyXRC::RC_SCREEN_FONT_SANS:
2207         case LyXRC::RC_SCREEN_FONT_SANS_FOUNDRY:
2208         case LyXRC::RC_SCREEN_FONT_SCALABLE:
2209         case LyXRC::RC_SCREEN_FONT_SIZES:
2210         case LyXRC::RC_SCREEN_FONT_TYPEWRITER:
2211         case LyXRC::RC_SCREEN_FONT_TYPEWRITER_FOUNDRY:
2212         case LyXRC::RC_SCREEN_GEOMETRY_HEIGHT:
2213         case LyXRC::RC_SCREEN_GEOMETRY_WIDTH:
2214         case LyXRC::RC_SCREEN_GEOMETRY_XYSAVED:
2215         case LyXRC::RC_SCREEN_ZOOM:
2216         case LyXRC::RC_SERVERPIPE:
2217         case LyXRC::RC_SET_COLOR:
2218         case LyXRC::RC_SHOW_BANNER:
2219         case LyXRC::RC_SPELL_COMMAND:
2220         case LyXRC::RC_TEMPDIRPATH:
2221         case LyXRC::RC_TEMPLATEPATH:
2222         case LyXRC::RC_TEX_ALLOWS_SPACES:
2223         case LyXRC::RC_TEX_EXPECTS_WINDOWS_PATHS:
2224                 if (lyxrc_orig.windows_style_tex_paths != lyxrc_new.windows_style_tex_paths) {
2225                         support::os::windows_style_tex_paths(lyxrc_new.windows_style_tex_paths);
2226                 }
2227         case LyXRC::RC_UIFILE:
2228         case LyXRC::RC_USER_EMAIL:
2229         case LyXRC::RC_USER_NAME:
2230         case LyXRC::RC_USETEMPDIR:
2231         case LyXRC::RC_USE_ALT_LANG:
2232         case LyXRC::RC_USE_CONVERTER_CACHE:
2233         case LyXRC::RC_USE_ESC_CHARS:
2234         case LyXRC::RC_USE_INP_ENC:
2235         case LyXRC::RC_USE_PERS_DICT:
2236         case LyXRC::RC_USE_SPELL_LIB:
2237         case LyXRC::RC_VIEWDVI_PAPEROPTION:
2238         case LyXRC::RC_VIEWER:
2239         case LyXRC::RC_LAST:
2240                 break;
2241         }
2242 }
2243
2244 } // namespace anon
2245
2246
2247 } // namespace lyx