src/LyXFunc.cpp

   1 /**
   2  * \file LyXFunc.cpp
   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_funcs.h"
  26 #include "Buffer.h"
  27 #include "BufferList.h"
  28 #include "BufferParams.h"
  29 #include "BufferView.h"
  30 #include "CmdDef.h"
  31 #include "Color.h"
  32 #include "Converter.h"
  33 #include "Cursor.h"
  34 #include "CutAndPaste.h"
  35 #include "DispatchResult.h"
  36 #include "Encoding.h"
  37 #include "ErrorList.h"
  38 #include "Format.h"
  39 #include "FuncRequest.h"
  40 #include "FuncStatus.h"
  41 #include "InsetIterator.h"
  42 #include "Intl.h"
  43 #include "KeyMap.h"
  44 #include "Language.h"
  45 #include "Lexer.h"
  46 #include "LyXAction.h"
  47 #include "lyxfind.h"
  48 #include "LyX.h"
  49 #include "LyXRC.h"
  50 #include "LyXVC.h"
  51 #include "Paragraph.h"
  52 #include "ParagraphParameters.h"
  53 #include "ParIterator.h"
  54 #include "Row.h"
  55 #include "Server.h"
  56 #include "Session.h"
  57 #include "TextClassList.h"
  58
  59 #include "insets/InsetBox.h"
  60 #include "insets/InsetBranch.h"
  61 #include "insets/InsetCommand.h"
  62 #include "insets/InsetERT.h"
  63 #include "insets/InsetExternal.h"
  64 #include "insets/InsetFloat.h"
  65 #include "insets/InsetListings.h"
  66 #include "insets/InsetGraphics.h"
  67 #include "insets/InsetInclude.h"
  68 #include "insets/InsetNote.h"
  69 #include "insets/InsetTabular.h"
  70 #include "insets/InsetVSpace.h"
  71 #include "insets/InsetWrap.h"
  72
  73 #include "frontends/alert.h"
  74 #include "frontends/Application.h"
  75 #include "frontends/KeySymbol.h"
  76 #include "frontends/LyXView.h"
  77 #include "frontends/Selection.h"
  78
  79 #include "support/debug.h"
  80 #include "support/environment.h"
  81 #include "support/FileName.h"
  82 #include "support/filetools.h"
  83 #include "support/gettext.h"
  84 #include "support/lstrings.h"
  85 #include "support/Path.h"
  86 #include "support/Package.h"
  87 #include "support/Systemcall.h"
  88 #include "support/convert.h"
  89 #include "support/os.h"
  90
  91 #include <sstream>
  92 #include <vector>
  93
  94 using namespace std;
  95 using namespace lyx::support;
  96
  97 namespace lyx {
  98
  99 using frontend::LyXView;
 100
 101 namespace Alert = frontend::Alert;
 102
 103 namespace {
 104
 105
 106 // This function runs "configure" and then rereads lyx.defaults to
 107 // reconfigure the automatic settings.
 108 void reconfigure(LyXView & lv, string const & option)
 109 {
 110         // emit message signal.
 111         lv.message(_("Running configure..."));
 112
 113         // Run configure in user lyx directory
 114         PathChanger p(package().user_support());
 115         string configure_command = package().configure_command();
 116         configure_command += option;
 117         Systemcall one;
 118         int ret = one.startscript(Systemcall::Wait, configure_command);
 119         p.pop();
 120         // emit message signal.
 121         lv.message(_("Reloading configuration..."));
 122         lyxrc.read(libFileSearch(string(), "lyxrc.defaults"));
 123         // Re-read packages.lst
 124         LaTeXFeatures::getAvailable();
 125
 126         if (ret)
 127                 Alert::information(_("System reconfiguration failed"),
 128                            _("The system reconfiguration has failed.\n"
 129                                   "Default textclass is used but LyX may "
 130                                   "not be able to work properly.\n"
 131                                   "Please reconfigure again if needed."));
 132         else
 133
 134                 Alert::information(_("System reconfigured"),
 135                            _("The system has been reconfigured.\n"
 136                              "You need to restart LyX to make use of any\n"
 137                              "updated document class specifications."));
 138 }
 139
 140
 141 bool getLocalStatus(Cursor cursor, FuncRequest const & cmd, FuncStatus & status)
 142 {
 143         // Try to fix cursor in case it is broken.
 144         cursor.fixIfBroken();
 145
 146         // This is, of course, a mess. Better create a new doc iterator and use
 147         // this in Inset::getStatus. This might require an additional
 148         // BufferView * arg, though (which should be avoided)
 149         //Cursor safe = *this;
 150         bool res = false;
 151         for ( ; cursor.depth(); cursor.pop()) {
 152                 //lyxerr << "\nCursor::getStatus: cmd: " << cmd << endl << *this << endl;
 153                 BOOST_ASSERT(cursor.idx() <= cursor.lastidx());
 154                 BOOST_ASSERT(cursor.pit() <= cursor.lastpit());
 155                 BOOST_ASSERT(cursor.pos() <= cursor.lastpos());
 156
 157                 // The inset's getStatus() will return 'true' if it made
 158                 // a definitive decision on whether it want to handle the
 159                 // request or not. The result of this decision is put into
 160                 // the 'status' parameter.
 161                 if (cursor.inset().getStatus(cursor, cmd, status)) {
 162                         res = true;
 163                         break;
 164                 }
 165         }
 166         return res;
 167 }
 168
 169
 170 /** Return the change status at cursor position, taking in account the
 171  * status at each level of the document iterator (a table in a deleted
 172  * footnote is deleted).
 173  * When \param outer is true, the top slice is not looked at.
 174  */
 175 Change::Type lookupChangeType(DocIterator const & dit, bool outer = false)
 176 {
 177         size_t const depth = dit.depth() - (outer ? 1 : 0);
 178
 179         for (size_t i = 0 ; i < depth ; ++i) {
 180                 CursorSlice const & slice = dit[i];
 181                 if (!slice.inset().inMathed()
 182                     && slice.pos() < slice.paragraph().size()) {
 183                         Change::Type const ch = slice.paragraph().lookupChange(slice.pos()).type;
 184                         if (ch != Change::UNCHANGED)
 185                                 return ch;
 186                 }
 187         }
 188         return Change::UNCHANGED;
 189 }
 190
 191 }
 192
 193
 194 LyXFunc::LyXFunc()
 195         : lyx_view_(0), encoded_last_key(0), meta_fake_bit(NoModifier)
 196 {
 197 }
 198
 199
 200 void LyXFunc::initKeySequences(KeyMap * kb)
 201 {
 202         keyseq = KeySequence(kb, kb);
 203         cancel_meta_seq = KeySequence(kb, kb);
 204 }
 205
 206
 207 void LyXFunc::setLyXView(LyXView * lv)
 208 {
 209         if (!quitting && lyx_view_ && lyx_view_->view() && lyx_view_ != lv)
 210                 // save current selection to the selection buffer to allow
 211                 // middle-button paste in another window
 212                 cap::saveSelection(lyx_view_->view()->cursor());
 213         lyx_view_ = lv;
 214 }
 215
 216
 217 void LyXFunc::handleKeyFunc(kb_action action)
 218 {
 219         char_type c = encoded_last_key;
 220
 221         if (keyseq.length())
 222                 c = 0;
 223
 224         BOOST_ASSERT(lyx_view_ && lyx_view_->view());
 225         lyx_view_->view()->getIntl().getTransManager().deadkey(
 226                 c, get_accent(action).accent, view()->cursor().innerText(), view()->cursor());
 227         // Need to clear, in case the minibuffer calls these
 228         // actions
 229         keyseq.clear();
 230         // copied verbatim from do_accent_char
 231         view()->cursor().resetAnchor();
 232         view()->processUpdateFlags(Update::FitCursor);
 233 }
 234
 235
 236 void LyXFunc::gotoBookmark(unsigned int idx, bool openFile, bool switchToBuffer)
 237 {
 238         BOOST_ASSERT(lyx_view_);
 239         if (!LyX::ref().session().bookmarks().isValid(idx))
 240                 return;
 241         BookmarksSection::Bookmark const & bm = LyX::ref().session().bookmarks().bookmark(idx);
 242         BOOST_ASSERT(!bm.filename.empty());
 243         string const file = bm.filename.absFilename();
 244         // if the file is not opened, open it.
 245         if (!theBufferList().exists(file)) {
 246                 if (openFile)
 247                         dispatch(FuncRequest(LFUN_FILE_OPEN, file));
 248                 else
 249                         return;
 250         }
 251         // open may fail, so we need to test it again
 252         if (!theBufferList().exists(file))
 253                 return;
 254
 255         // if the current buffer is not that one, switch to it.
 256         if (lyx_view_->buffer()->absFileName() != file) {
 257                 if (!switchToBuffer)
 258                         return;
 259                 dispatch(FuncRequest(LFUN_BUFFER_SWITCH, file));
 260         }
 261         // moveToPosition try paragraph id first and then paragraph (pit, pos).
 262         if (!view()->moveToPosition(bm.bottom_pit, bm.bottom_pos,
 263                 bm.top_id, bm.top_pos))
 264                 return;
 265
 266         // Cursor jump succeeded!
 267         Cursor const & cur = view()->cursor();
 268         pit_type new_pit = cur.pit();
 269         pos_type new_pos = cur.pos();
 270         int new_id = cur.paragraph().id();
 271
 272         // if bottom_pit, bottom_pos or top_id has been changed, update bookmark
 273         // see http://bugzilla.lyx.org/show_bug.cgi?id=3092
 274         if (bm.bottom_pit != new_pit || bm.bottom_pos != new_pos
 275                 || bm.top_id != new_id) {
 276                 const_cast<BookmarksSection::Bookmark &>(bm).updatePos(
 277                         new_pit, new_pos, new_id);
 278         }
 279 }
 280
 281
 282 void LyXFunc::processKeySym(KeySymbol const & keysym, KeyModifier state)
 283 {
 284         LYXERR(Debug::KEY, "KeySym is " << keysym.getSymbolName());
 285
 286         // Do nothing if we have nothing (JMarc)
 287         if (!keysym.isOK()) {
 288                 LYXERR(Debug::KEY, "Empty kbd action (probably composing)");
 289                 lyx_view_->restartCursor();
 290                 return;
 291         }
 292
 293         if (keysym.isModifier()) {
 294                 LYXERR(Debug::KEY, "isModifier true");
 295                 lyx_view_->restartCursor();
 296                 return;
 297         }
 298
 299         //Encoding const * encoding = view()->cursor().getEncoding();
 300         //encoded_last_key = keysym.getISOEncoded(encoding ? encoding->name() : "");
 301         // FIXME: encoded_last_key shadows the member variable of the same
 302         // name. Is that intended?
 303         char_type encoded_last_key = keysym.getUCSEncoded();
 304
 305         // Do a one-deep top-level lookup for
 306         // cancel and meta-fake keys. RVDK_PATCH_5
 307         cancel_meta_seq.reset();
 308
 309         FuncRequest func = cancel_meta_seq.addkey(keysym, state);
 310         LYXERR(Debug::KEY, "action first set to [" << func.action << ']');
 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 = NoModifier. 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, "action now set to [" << func.action << ']');
 319         }
 320
 321         // Dont remove this unless you know what you are doing.
 322         meta_fake_bit = NoModifier;
 323
 324         // Can this happen now ?
 325         if (func.action == LFUN_NOACTION)
 326                 func = FuncRequest(LFUN_COMMAND_PREFIX);
 327
 328         LYXERR(Debug::KEY, " Key [action=" << func.action << "]["
 329                 << keyseq.print(KeySequence::Portable) << ']');
 330
 331         // already here we know if it any point in going further
 332         // why not return already here if action == -1 and
 333         // num_bytes == 0? (Lgb)
 334
 335         if (keyseq.length() > 1)
 336                 lyx_view_->message(keyseq.print(KeySequence::ForGui));
 337
 338
 339         // Maybe user can only reach the key via holding down shift.
 340         // Let's see. But only if shift is the only modifier
 341         if (func.action == LFUN_UNKNOWN_ACTION && state == ShiftModifier) {
 342                 LYXERR(Debug::KEY, "Trying without shift");
 343                 func = keyseq.addkey(keysym, NoModifier);
 344                 LYXERR(Debug::KEY, "Action now " << func.action);
 345         }
 346
 347         if (func.action == LFUN_UNKNOWN_ACTION) {
 348                 // Hmm, we didn't match any of the keysequences. See
 349                 // if it's normal insertable text not already covered
 350                 // by a binding
 351                 if (keysym.isText() && keyseq.length() == 1) {
 352                         LYXERR(Debug::KEY, "isText() is true, inserting.");
 353                         func = FuncRequest(LFUN_SELF_INSERT,
 354                                            FuncRequest::KEYBOARD);
 355                 } else {
 356                         LYXERR(Debug::KEY, "Unknown, !isText() - giving up");
 357                         lyx_view_->message(_("Unknown function."));
 358                         lyx_view_->restartCursor();
 359                         return;
 360                 }
 361         }
 362
 363         if (func.action == LFUN_SELF_INSERT) {
 364                 if (encoded_last_key != 0) {
 365                         docstring const arg(1, encoded_last_key);
 366                         dispatch(FuncRequest(LFUN_SELF_INSERT, arg,
 367                                              FuncRequest::KEYBOARD));
 368                         LYXERR(Debug::KEY, "SelfInsert arg[`" << to_utf8(arg) << "']");
 369                 }
 370         } else {
 371                 dispatch(func);
 372         }
 373
 374         lyx_view_->restartCursor();
 375 }
 376
 377
 378 FuncStatus LyXFunc::getStatus(FuncRequest const & cmd) const
 379 {
 380         //lyxerr << "LyXFunc::getStatus: cmd: " << cmd << endl;
 381         FuncStatus flag;
 382
 383         Buffer * buf = lyx_view_? lyx_view_->buffer() : 0;
 384
 385         if (cmd.action == LFUN_NOACTION) {
 386                 flag.message(from_utf8(N_("Nothing to do")));
 387                 flag.enabled(false);
 388                 return flag;
 389         }
 390
 391         switch (cmd.action) {
 392         case LFUN_UNKNOWN_ACTION:
 393 #ifndef HAVE_LIBAIKSAURUS
 394         case LFUN_THESAURUS_ENTRY:
 395 #endif
 396                 flag.unknown(true);
 397                 flag.enabled(false);
 398                 break;
 399
 400         default:
 401                 break;
 402         }
 403
 404         if (flag.unknown()) {
 405                 flag.message(from_utf8(N_("Unknown action")));
 406                 return flag;
 407         }
 408
 409         if (!flag.enabled()) {
 410                 if (flag.message().empty())
 411                         flag.message(from_utf8(N_("Command disabled")));
 412                 return flag;
 413         }
 414
 415         // Check whether we need a buffer
 416         if (!lyxaction.funcHasFlag(cmd.action, LyXAction::NoBuffer) && !buf) {
 417                 // no, exit directly
 418                 flag.message(from_utf8(N_("Command not allowed with"
 419                                     "out any document open")));
 420                 flag.enabled(false);
 421                 return flag;
 422         }
 423
 424         // I would really like to avoid having this switch and rather try to
 425         // encode this in the function itself.
 426         // -- And I'd rather let an inset decide which LFUNs it is willing
 427         // to handle (Andre')
 428         bool enable = true;
 429         switch (cmd.action) {
 430
 431         // FIXME: these cases should be hidden in GuiApplication::getStatus().
 432         case LFUN_WINDOW_CLOSE:
 433                 if (theApp())
 434                         return theApp()->getStatus(cmd);
 435                 enable = false;
 436                 break;
 437
 438         // FIXME: these cases should be hidden in GuiView::getStatus().
 439         case LFUN_DIALOG_TOGGLE:
 440         case LFUN_DIALOG_SHOW:
 441         case LFUN_DIALOG_UPDATE:
 442                 if (cmd.argument() == "prefs"
 443                     || cmd.argument() == "aboutlyx")
 444                         enable = true;
 445                 else if (lyx_view_)
 446                         return lyx_view_->getStatus(cmd);
 447                 else
 448                         enable = false;
 449                 break;
 450
 451         case LFUN_TOOLBAR_TOGGLE:
 452         case LFUN_INSET_APPLY:
 453         case LFUN_BUFFER_WRITE:
 454         case LFUN_BUFFER_WRITE_AS:
 455         case LFUN_SPLIT_VIEW:
 456                 if (lyx_view_)
 457                         return lyx_view_->getStatus(cmd);
 458                 enable = false;
 459                 break;
 460
 461         case LFUN_BUFFER_TOGGLE_READ_ONLY:
 462                 flag.setOnOff(buf->isReadonly());
 463                 break;
 464
 465         case LFUN_BUFFER_SWITCH:
 466                 // toggle on the current buffer, but do not toggle off
 467                 // the other ones (is that a good idea?)
 468                 if (buf && to_utf8(cmd.argument()) == buf->absFileName())
 469                         flag.setOnOff(true);
 470                 break;
 471
 472         case LFUN_BUFFER_EXPORT:
 473                 enable = cmd.argument() == "custom"
 474                         || buf->isExportable(to_utf8(cmd.argument()));
 475                 break;
 476
 477         case LFUN_BUFFER_CHKTEX:
 478                 enable = buf->isLatex() && !lyxrc.chktex_command.empty();
 479                 break;
 480
 481         case LFUN_BUILD_PROGRAM:
 482                 enable = buf->isExportable("program");
 483                 break;
 484
 485         case LFUN_VC_REGISTER:
 486                 enable = !buf->lyxvc().inUse();
 487                 break;
 488         case LFUN_VC_CHECK_IN:
 489                 enable = buf->lyxvc().inUse() && !buf->isReadonly();
 490                 break;
 491         case LFUN_VC_CHECK_OUT:
 492                 enable = buf->lyxvc().inUse() && buf->isReadonly();
 493                 break;
 494         case LFUN_VC_REVERT:
 495         case LFUN_VC_UNDO_LAST:
 496                 enable = buf->lyxvc().inUse();
 497                 break;
 498         case LFUN_BUFFER_RELOAD:
 499                 enable = !buf->isUnnamed() && buf->fileName().exists()
 500                         && (!buf->isClean() || buf->isExternallyModified(Buffer::timestamp_method));
 501                 break;
 502
 503         case LFUN_CITATION_INSERT: {
 504                 FuncRequest fr(LFUN_INSET_INSERT, "citation");
 505                 enable = getStatus(fr).enabled();
 506                 break;
 507         }
 508
 509         // This could be used for the no-GUI version. The GUI version is handled in
 510         // LyXView::getStatus(). See above.
 511         /*
 512         case LFUN_BUFFER_WRITE:
 513         case LFUN_BUFFER_WRITE_AS: {
 514                 Buffer * b = theBufferList().getBuffer(cmd.getArg(0));
 515                 enable = b && (b->isUnnamed() || !b->isClean());
 516                 break;
 517         }
 518         */
 519
 520         case LFUN_BUFFER_WRITE_ALL: {
 521                 // We enable the command only if there are some modified buffers
 522                 Buffer * first = theBufferList().first();
 523                 enable = false;
 524                 if (!first)
 525                         break;
 526                 Buffer * b = first;
 527                 // We cannot use a for loop as the buffer list is a cycle.
 528                 do {
 529                         if (!b->isClean()) {
 530                                 enable = true;
 531                                 break;
 532                         }
 533                         b = theBufferList().next(b);
 534                 } while (b != first);
 535                 break;
 536         }
 537
 538         case LFUN_BOOKMARK_GOTO: {
 539                 const unsigned int num = convert<unsigned int>(to_utf8(cmd.argument()));
 540                 enable = LyX::ref().session().bookmarks().isValid(num);
 541                 break;
 542         }
 543
 544         case LFUN_BOOKMARK_CLEAR:
 545                 enable = LyX::ref().session().bookmarks().size() > 0;
 546                 break;
 547
 548         // this one is difficult to get right. As a half-baked
 549         // solution, we consider only the first action of the sequence
 550         case LFUN_COMMAND_SEQUENCE: {
 551                 // argument contains ';'-terminated commands
 552                 string const firstcmd = token(to_utf8(cmd.argument()), ';', 0);
 553                 FuncRequest func(lyxaction.lookupFunc(firstcmd));
 554                 func.origin = cmd.origin;
 555                 flag = getStatus(func);
 556                 break;
 557         }
 558
 559         case LFUN_CALL: {
 560                 FuncRequest func;
 561                 string name = to_utf8(cmd.argument());
 562                 if (LyX::ref().topLevelCmdDef().lock(name, func)) {
 563                         func.origin = cmd.origin;
 564                         flag = getStatus(func);
 565                         LyX::ref().topLevelCmdDef().release(name);
 566                 } else {
 567                         // catch recursion or unknown command definiton
 568                         // all operations until the recursion or unknown command
 569                         // definiton occures are performed, so set the state to enabled
 570                         enable = true;
 571                 }
 572                 break;
 573         }
 574
 575         case LFUN_BUFFER_NEW:
 576         case LFUN_BUFFER_NEW_TEMPLATE:
 577         case LFUN_WORD_FIND_FORWARD:
 578         case LFUN_WORD_FIND_BACKWARD:
 579         case LFUN_COMMAND_PREFIX:
 580         case LFUN_COMMAND_EXECUTE:
 581         case LFUN_CANCEL:
 582         case LFUN_META_PREFIX:
 583         case LFUN_BUFFER_CLOSE:
 584         case LFUN_BUFFER_UPDATE:
 585         case LFUN_BUFFER_VIEW:
 586         case LFUN_MASTER_BUFFER_UPDATE:
 587         case LFUN_MASTER_BUFFER_VIEW:
 588         case LFUN_BUFFER_IMPORT:
 589         case LFUN_BUFFER_AUTO_SAVE:
 590         case LFUN_RECONFIGURE:
 591         case LFUN_HELP_OPEN:
 592         case LFUN_FILE_OPEN:
 593         case LFUN_DROP_LAYOUTS_CHOICE:
 594         case LFUN_MENU_OPEN:
 595         case LFUN_SERVER_GET_NAME:
 596         case LFUN_SERVER_NOTIFY:
 597         case LFUN_SERVER_GOTO_FILE_ROW:
 598         case LFUN_DIALOG_HIDE:
 599         case LFUN_DIALOG_DISCONNECT_INSET:
 600         case LFUN_BUFFER_CHILD_OPEN:
 601         case LFUN_UI_TOGGLE:
 602         case LFUN_TOGGLE_CURSOR_FOLLOWS_SCROLLBAR:
 603         case LFUN_KEYMAP_OFF:
 604         case LFUN_KEYMAP_PRIMARY:
 605         case LFUN_KEYMAP_SECONDARY:
 606         case LFUN_KEYMAP_TOGGLE:
 607         case LFUN_REPEAT:
 608         case LFUN_BUFFER_EXPORT_CUSTOM:
 609         case LFUN_BUFFER_PRINT:
 610         case LFUN_PREFERENCES_SAVE:
 611         case LFUN_SCREEN_FONT_UPDATE:
 612         case LFUN_SET_COLOR:
 613         case LFUN_MESSAGE:
 614         case LFUN_EXTERNAL_EDIT:
 615         case LFUN_GRAPHICS_EDIT:
 616         case LFUN_ALL_INSETS_TOGGLE:
 617         case LFUN_BUFFER_LANGUAGE:
 618         case LFUN_TEXTCLASS_APPLY:
 619         case LFUN_TEXTCLASS_LOAD:
 620         case LFUN_BUFFER_SAVE_AS_DEFAULT:
 621         case LFUN_BUFFER_PARAMS_APPLY:
 622         case LFUN_LAYOUT_MODULES_CLEAR:
 623         case LFUN_LAYOUT_MODULE_ADD:
 624         case LFUN_LAYOUT_RELOAD:
 625         case LFUN_LYXRC_APPLY:
 626         case LFUN_BUFFER_NEXT:
 627         case LFUN_BUFFER_PREVIOUS:
 628         case LFUN_WINDOW_NEW:
 629         case LFUN_LYX_QUIT:
 630                 // these are handled in our dispatch()
 631                 break;
 632
 633         default:
 634                 if (!view()) {
 635                         enable = false;
 636                         break;
 637                 }
 638                 if (!getLocalStatus(view()->cursor(), cmd, flag))
 639                         flag = view()->getStatus(cmd);
 640         }
 641
 642         if (!enable)
 643                 flag.enabled(false);
 644
 645         // Can we use a readonly buffer?
 646         if (buf && buf->isReadonly()
 647             && !lyxaction.funcHasFlag(cmd.action, LyXAction::ReadOnly)
 648             && !lyxaction.funcHasFlag(cmd.action, LyXAction::NoBuffer)) {
 649                 flag.message(from_utf8(N_("Document is read-only")));
 650                 flag.enabled(false);
 651         }
 652
 653         // Are we in a DELETED change-tracking region?
 654         if (buf && view()
 655                 && lookupChangeType(view()->cursor(), true) == Change::DELETED
 656             && !lyxaction.funcHasFlag(cmd.action, LyXAction::ReadOnly)
 657             && !lyxaction.funcHasFlag(cmd.action, LyXAction::NoBuffer)) {
 658                 flag.message(from_utf8(N_("This portion of the document is deleted.")));
 659                 flag.enabled(false);
 660         }
 661
 662         // the default error message if we disable the command
 663         if (!flag.enabled() && flag.message().empty())
 664                 flag.message(from_utf8(N_("Command disabled")));
 665
 666         return flag;
 667 }
 668
 669
 670 bool LyXFunc::ensureBufferClean(BufferView * bv)
 671 {
 672         Buffer & buf = bv->buffer();
 673         if (buf.isClean())
 674                 return true;
 675
 676         docstring const file = buf.fileName().displayName(30);
 677         docstring text = bformat(_("The document %1$s has unsaved "
 678                                              "changes.\n\nDo you want to save "
 679                                              "the document?"), file);
 680         int const ret = Alert::prompt(_("Save changed document?"),
 681                                       text, 0, 1, _("&Save"),
 682                                       _("&Cancel"));
 683
 684         if (ret == 0)
 685                 dispatch(FuncRequest(LFUN_BUFFER_WRITE));
 686
 687         return buf.isClean();
 688 }
 689
 690
 691 namespace {
 692
 693 void showPrintError(string const & name)
 694 {
 695         docstring str = bformat(_("Could not print the document %1$s.\n"
 696                                             "Check that your printer is set up correctly."),
 697                              makeDisplayPath(name, 50));
 698         Alert::error(_("Print document failed"), str);
 699 }
 700
 701
 702 void loadTextClass(string const & name)
 703 {
 704         pair<bool, textclass_type> const tc_pair =
 705                 textclasslist.numberOfClass(name);
 706
 707         if (!tc_pair.first) {
 708                 lyxerr << "Document class \"" << name
 709                        << "\" does not exist."
 710                        << endl;
 711                 return;
 712         }
 713
 714         textclass_type const tc = tc_pair.second;
 715
 716         if (!textclasslist[tc].load()) {
 717                 docstring s = bformat(_("The document class %1$s."
 718                                    "could not be loaded."),
 719                                    from_utf8(textclasslist[tc].name()));
 720                 Alert::error(_("Could not load class"), s);
 721         }
 722 }
 723
 724
 725 void actOnUpdatedPrefs(LyXRC const & lyxrc_orig, LyXRC const & lyxrc_new);
 726
 727 } //namespace anon
 728
 729
 730 void LyXFunc::dispatch(FuncRequest const & cmd)
 731 {
 732         string const argument = to_utf8(cmd.argument());
 733         kb_action const action = cmd.action;
 734
 735         LYXERR(Debug::ACTION, "\nLyXFunc::dispatch: cmd: " << cmd);
 736         //lyxerr << "LyXFunc::dispatch: cmd: " << cmd << endl;
 737
 738         // we have not done anything wrong yet.
 739         errorstat = false;
 740         dispatch_buffer.erase();
 741
 742         // redraw the screen at the end (first of the two drawing steps).
 743         //This is done unless explicitely requested otherwise
 744         Update::flags updateFlags = Update::FitCursor;
 745
 746         FuncStatus const flag = getStatus(cmd);
 747         if (!flag.enabled()) {
 748                 // We cannot use this function here
 749                 LYXERR(Debug::ACTION, "LyXFunc::dispatch: "
 750                        << lyxaction.getActionName(action)
 751                        << " [" << action << "] is disabled at this location");
 752                 setErrorMessage(flag.message());
 753         } else {
 754                 switch (action) {
 755
 756                 case LFUN_WORD_FIND_FORWARD:
 757                 case LFUN_WORD_FIND_BACKWARD: {
 758                         BOOST_ASSERT(lyx_view_ && lyx_view_->view());
 759                         static docstring last_search;
 760                         docstring searched_string;
 761
 762                         if (!cmd.argument().empty()) {
 763                                 last_search = cmd.argument();
 764                                 searched_string = cmd.argument();
 765                         } else {
 766                                 searched_string = last_search;
 767                         }
 768
 769                         if (searched_string.empty())
 770                                 break;
 771
 772                         bool const fw = action == LFUN_WORD_FIND_FORWARD;
 773                         docstring const data =
 774                                 find2string(searched_string, true, false, fw);
 775                         find(view(), FuncRequest(LFUN_WORD_FIND, data));
 776                         break;
 777                 }
 778
 779                 case LFUN_COMMAND_PREFIX:
 780                         BOOST_ASSERT(lyx_view_);
 781                         lyx_view_->message(keyseq.printOptions(true));
 782                         break;
 783
 784                 case LFUN_CANCEL:
 785                         BOOST_ASSERT(lyx_view_ && lyx_view_->view());
 786                         keyseq.reset();
 787                         meta_fake_bit = NoModifier;
 788                         if (lyx_view_->buffer())
 789                                 // cancel any selection
 790                                 dispatch(FuncRequest(LFUN_MARK_OFF));
 791                         setMessage(from_ascii(N_("Cancel")));
 792                         break;
 793
 794                 case LFUN_META_PREFIX:
 795                         meta_fake_bit = AltModifier;
 796                         setMessage(keyseq.print(KeySequence::ForGui));
 797                         break;
 798
 799                 case LFUN_BUFFER_TOGGLE_READ_ONLY: {
 800                         BOOST_ASSERT(lyx_view_ && lyx_view_->view() && lyx_view_->buffer());
 801                         Buffer * buf = lyx_view_->buffer();
 802                         if (buf->lyxvc().inUse())
 803                                 buf->lyxvc().toggleReadOnly();
 804                         else
 805                                 buf->setReadonly(!lyx_view_->buffer()->isReadonly());
 806                         break;
 807                 }
 808
 809                 // --- Menus -----------------------------------------------
 810                 case LFUN_BUFFER_NEW:
 811                         lyx_view_->newDocument(argument, false);
 812                         updateFlags = Update::None;
 813                         break;
 814
 815                 case LFUN_BUFFER_NEW_TEMPLATE:
 816                         lyx_view_->newDocument(argument, true);
 817                         updateFlags = Update::None;
 818                         break;
 819
 820                 case LFUN_BUFFER_CLOSE:
 821                         closeBuffer();
 822                         updateFlags = Update::None;
 823                         break;
 824
 825                 case LFUN_BUFFER_RELOAD: {
 826                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
 827                         docstring const file = makeDisplayPath(lyx_view_->buffer()->absFileName(), 20);
 828                         docstring text = bformat(_("Any changes will be lost. Are you sure "
 829                                                              "you want to revert to the saved version of the document %1$s?"), file);
 830                         int const ret = Alert::prompt(_("Revert to saved document?"),
 831                                 text, 1, 1, _("&Revert"), _("&Cancel"));
 832
 833                         if (ret == 0)
 834                                 reloadBuffer();
 835                         break;
 836                 }
 837
 838                 case LFUN_BUFFER_UPDATE:
 839                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
 840                         lyx_view_->buffer()->doExport(argument, true);
 841                         break;
 842
 843                 case LFUN_BUFFER_VIEW:
 844                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
 845                         lyx_view_->buffer()->preview(argument);
 846                         break;
 847
 848                 case LFUN_MASTER_BUFFER_UPDATE:
 849                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer() && lyx_view_->buffer()->masterBuffer());
 850                         lyx_view_->buffer()->masterBuffer()->doExport(argument, true);
 851                         break;
 852
 853                 case LFUN_MASTER_BUFFER_VIEW:
 854                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer() && lyx_view_->buffer()->masterBuffer());
 855                         lyx_view_->buffer()->masterBuffer()->preview(argument);
 856                         break;
 857
 858                 case LFUN_BUILD_PROGRAM:
 859                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
 860                         lyx_view_->buffer()->doExport("program", true);
 861                         break;
 862
 863                 case LFUN_BUFFER_CHKTEX:
 864                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
 865                         lyx_view_->buffer()->runChktex();
 866                         break;
 867
 868                 case LFUN_BUFFER_EXPORT:
 869                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
 870                         if (argument == "custom")
 871                                 dispatch(FuncRequest(LFUN_DIALOG_SHOW, "sendto"));
 872                         else
 873                                 lyx_view_->buffer()->doExport(argument, false);
 874                         break;
 875
 876                 case LFUN_BUFFER_EXPORT_CUSTOM: {
 877                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
 878                         string format_name;
 879                         string command = split(argument, format_name, ' ');
 880                         Format const * format = formats.getFormat(format_name);
 881                         if (!format) {
 882                                 lyxerr << "Format \"" << format_name
 883                                        << "\" not recognized!"
 884                                        << endl;
 885                                 break;
 886                         }
 887
 888                         Buffer * buffer = lyx_view_->buffer();
 889
 890                         // The name of the file created by the conversion process
 891                         string filename;
 892
 893                         // Output to filename
 894                         if (format->name() == "lyx") {
 895                                 string const latexname = buffer->latexName(false);
 896                                 filename = changeExtension(latexname,
 897                                                            format->extension());
 898                                 filename = addName(buffer->temppath(), filename);
 899
 900                                 if (!buffer->writeFile(FileName(filename)))
 901                                         break;
 902
 903                         } else {
 904                                 buffer->doExport(format_name, true, filename);
 905                         }
 906
 907                         // Substitute $$FName for filename
 908                         if (!contains(command, "$$FName"))
 909                                 command = "( " + command + " ) < $$FName";
 910                         command = subst(command, "$$FName", filename);
 911
 912                         // Execute the command in the background
 913                         Systemcall call;
 914                         call.startscript(Systemcall::DontWait, command);
 915                         break;
 916                 }
 917
 918                 case LFUN_BUFFER_PRINT: {
 919                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
 920                         // FIXME: cmd.getArg() might fail if one of the arguments
 921                         // contains double quotes
 922                         string target = cmd.getArg(0);
 923                         string target_name = cmd.getArg(1);
 924                         string command = cmd.getArg(2);
 925
 926                         if (target.empty()
 927                             || target_name.empty()
 928                             || command.empty()) {
 929                                 lyxerr << "Unable to parse \""
 930                                        << argument << '"' << endl;
 931                                 break;
 932                         }
 933                         if (target != "printer" && target != "file") {
 934                                 lyxerr << "Unrecognized target \""
 935                                        << target << '"' << endl;
 936                                 break;
 937                         }
 938
 939                         Buffer * buffer = lyx_view_->buffer();
 940
 941                         if (!buffer->doExport("dvi", true)) {
 942                                 showPrintError(buffer->absFileName());
 943                                 break;
 944                         }
 945
 946                         // Push directory path.
 947                         string const path = buffer->temppath();
 948                         // Prevent the compiler from optimizing away p
 949                         FileName pp(path);
 950                         PathChanger p(pp);
 951
 952                         // there are three cases here:
 953                         // 1. we print to a file
 954                         // 2. we print directly to a printer
 955                         // 3. we print using a spool command (print to file first)
 956                         Systemcall one;
 957                         int res = 0;
 958                         string const dviname =
 959                                 changeExtension(buffer->latexName(true), "dvi");
 960
 961                         if (target == "printer") {
 962                                 if (!lyxrc.print_spool_command.empty()) {
 963                                         // case 3: print using a spool
 964                                         string const psname =
 965                                                 changeExtension(dviname,".ps");
 966                                         command += ' ' + lyxrc.print_to_file
 967                                                 + quoteName(psname)
 968                                                 + ' '
 969                                                 + quoteName(dviname);
 970
 971                                         string command2 =
 972                                                 lyxrc.print_spool_command + ' ';
 973                                         if (target_name != "default") {
 974                                                 command2 += lyxrc.print_spool_printerprefix
 975                                                         + target_name
 976                                                         + ' ';
 977                                         }
 978                                         command2 += quoteName(psname);
 979                                         // First run dvips.
 980                                         // If successful, then spool command
 981                                         res = one.startscript(
 982                                                 Systemcall::Wait,
 983                                                 command);
 984
 985                                         if (res == 0)
 986                                                 res = one.startscript(
 987                                                         Systemcall::DontWait,
 988                                                         command2);
 989                                 } else {
 990                                         // case 2: print directly to a printer
 991                                         if (target_name != "default")
 992                                                 command += ' ' + lyxrc.print_to_printer + target_name + ' ';
 993                                         res = one.startscript(
 994                                                 Systemcall::DontWait,
 995                                                 command + quoteName(dviname));
 996                                 }
 997
 998                         } else {
 999                                 // case 1: print to a file
1000                                 FileName const filename(makeAbsPath(target_name,
1001                                                         lyx_view_->buffer()->filePath()));
1002                                 FileName const dvifile(makeAbsPath(dviname, path));
1003                                 if (filename.exists()) {
1004                                         docstring text = bformat(
1005                                                 _("The file %1$s already exists.\n\n"
1006                                                   "Do you want to overwrite that file?"),
1007                                                 makeDisplayPath(filename.absFilename()));
1008                                         if (Alert::prompt(_("Overwrite file?"),
1009                                             text, 0, 1, _("&Overwrite"), _("&Cancel")) != 0)
1010                                                 break;
1011                                 }
1012                                 command += ' ' + lyxrc.print_to_file
1013                                         + quoteName(filename.toFilesystemEncoding())
1014                                         + ' '
1015                                         + quoteName(dvifile.toFilesystemEncoding());
1016                                 res = one.startscript(Systemcall::DontWait,
1017                                                       command);
1018                         }
1019
1020                         if (res != 0)
1021                                 showPrintError(buffer->absFileName());
1022                         break;
1023                 }
1024
1025                 // FIXME: There is need for a command-line import.
1026                 /*
1027                 case LFUN_BUFFER_IMPORT:
1028                         doImport(argument);
1029                         break;
1030                 */
1031
1032                 case LFUN_BUFFER_AUTO_SAVE:
1033                         lyx_view_->buffer()->autoSave();
1034                         break;
1035
1036                 case LFUN_RECONFIGURE:
1037                         BOOST_ASSERT(lyx_view_);
1038                         // argument is any additional parameter to the configure.py command
1039                         reconfigure(*lyx_view_, argument);
1040                         break;
1041
1042                 case LFUN_HELP_OPEN: {
1043                         BOOST_ASSERT(lyx_view_);
1044                         string const arg = argument;
1045                         if (arg.empty()) {
1046                                 setErrorMessage(from_ascii(N_("Missing argument")));
1047                                 break;
1048                         }
1049                         FileName const fname = i18nLibFileSearch("doc", arg, "lyx");
1050                         if (fname.empty()) {
1051                                 lyxerr << "LyX: unable to find documentation file `"
1052                                                          << arg << "'. Bad installation?" << endl;
1053                                 break;
1054                         }
1055                         lyx_view_->message(bformat(_("Opening help file %1$s..."),
1056                                 makeDisplayPath(fname.absFilename())));
1057                         Buffer * buf = lyx_view_->loadDocument(fname, false);
1058                         if (buf) {
1059                                 updateLabels(*buf);
1060                                 lyx_view_->setBuffer(buf);
1061                                 buf->errors("Parse");
1062                         }
1063                         updateFlags = Update::None;
1064                         break;
1065                 }
1066
1067                 // --- version control -------------------------------
1068                 case LFUN_VC_REGISTER:
1069                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
1070                         if (!ensureBufferClean(view()))
1071                                 break;
1072                         if (!lyx_view_->buffer()->lyxvc().inUse()) {
1073                                 lyx_view_->buffer()->lyxvc().registrer();
1074                                 reloadBuffer();
1075                         }
1076                         updateFlags = Update::Force;
1077                         break;
1078
1079                 case LFUN_VC_CHECK_IN:
1080                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
1081                         if (!ensureBufferClean(view()))
1082                                 break;
1083                         if (lyx_view_->buffer()->lyxvc().inUse()
1084                                         && !lyx_view_->buffer()->isReadonly()) {
1085                                 lyx_view_->buffer()->lyxvc().checkIn();
1086                                 reloadBuffer();
1087                         }
1088                         break;
1089
1090                 case LFUN_VC_CHECK_OUT:
1091                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
1092                         if (!ensureBufferClean(view()))
1093                                 break;
1094                         if (lyx_view_->buffer()->lyxvc().inUse()
1095                                         && lyx_view_->buffer()->isReadonly()) {
1096                                 lyx_view_->buffer()->lyxvc().checkOut();
1097                                 reloadBuffer();
1098                         }
1099                         break;
1100
1101                 case LFUN_VC_REVERT:
1102                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
1103                         lyx_view_->buffer()->lyxvc().revert();
1104                         reloadBuffer();
1105                         break;
1106
1107                 case LFUN_VC_UNDO_LAST:
1108                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
1109                         lyx_view_->buffer()->lyxvc().undoLast();
1110                         reloadBuffer();
1111                         break;
1112
1113                 // --- lyxserver commands ----------------------------
1114                 case LFUN_SERVER_GET_NAME:
1115                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
1116                         setMessage(from_utf8(lyx_view_->buffer()->absFileName()));
1117                         LYXERR(Debug::INFO, "FNAME["
1118                                 << lyx_view_->buffer()->absFileName() << ']');
1119                         break;
1120
1121                 case LFUN_SERVER_NOTIFY:
1122                         dispatch_buffer = keyseq.print(KeySequence::Portable);
1123                         theServer().notifyClient(to_utf8(dispatch_buffer));
1124                         break;
1125
1126                 case LFUN_SERVER_GOTO_FILE_ROW: {
1127                         BOOST_ASSERT(lyx_view_);
1128                         string file_name;
1129                         int row;
1130                         istringstream is(argument);
1131                         is >> file_name >> row;
1132                         Buffer * buf = 0;
1133                         bool loaded = false;
1134                         if (prefixIs(file_name, package().temp_dir().absFilename()))
1135                                 // Needed by inverse dvi search. If it is a file
1136                                 // in tmpdir, call the apropriated function
1137                                 buf = theBufferList().getBufferFromTmp(file_name);
1138                         else {
1139                                 // Must replace extension of the file to be .lyx
1140                                 // and get full path
1141                                 FileName const s = fileSearch(string(), changeExtension(file_name, ".lyx"), "lyx");
1142                                 // Either change buffer or load the file
1143                                 if (theBufferList().exists(s.absFilename()))
1144                                         buf = theBufferList().getBuffer(s.absFilename());
1145                                 else {
1146                                         buf = lyx_view_->loadDocument(s);
1147                                         loaded = true;
1148                                 }
1149                         }
1150
1151                         if (!buf) {
1152                                 updateFlags = Update::None;
1153                                 break;
1154                         }
1155
1156                         updateLabels(*buf);
1157                         lyx_view_->setBuffer(buf);
1158                         view()->setCursorFromRow(row);
1159                         if (loaded)
1160                                 buf->errors("Parse");
1161                         updateFlags = Update::FitCursor;
1162                         break;
1163                 }
1164
1165
1166                 case LFUN_DIALOG_SHOW_NEW_INSET: {
1167                         BOOST_ASSERT(lyx_view_);
1168                         string const name = cmd.getArg(0);
1169                         InsetCode code = insetCode(name);
1170                         string data = trim(to_utf8(cmd.argument()).substr(name.size()));
1171                         bool insetCodeOK = true;
1172                         switch (code) {
1173                         case BIBITEM_CODE:
1174                         case BIBTEX_CODE:
1175                         case INDEX_CODE:
1176                         case LABEL_CODE:
1177                         case NOMENCL_CODE:
1178                         case REF_CODE:
1179                         case TOC_CODE:
1180                         case HYPERLINK_CODE: {
1181                                 InsetCommandParams p(code);
1182                                 data = InsetCommandMailer::params2string(name, p);
1183                                 break;
1184                         }
1185                         case INCLUDE_CODE: {
1186                                 // data is the include type: one of "include",
1187                                 // "input", "verbatiminput" or "verbatiminput*"
1188                                 if (data.empty())
1189                                         // default type is requested
1190                                         data = "include";
1191                                 InsetCommandParams p(INCLUDE_CODE, data);
1192                                 data = InsetCommandMailer::params2string("include", p);
1193                                 break;
1194                         }
1195                         case BOX_CODE: {
1196                                 // \c data == "Boxed" || "Frameless" etc
1197                                 InsetBoxParams p(data);
1198                                 data = InsetBoxMailer::params2string(p);
1199                                 break;
1200                         }
1201                         case BRANCH_CODE: {
1202                                 InsetBranchParams p;
1203                                 data = InsetBranchMailer::params2string(p);
1204                                 break;
1205                         }
1206                         case CITE_CODE: {
1207                                 InsetCommandParams p(CITE_CODE);
1208                                 data = InsetCommandMailer::params2string(name, p);
1209                                 break;
1210                         }
1211                         case ERT_CODE: {
1212                                 data = InsetERTMailer::params2string(InsetCollapsable::Open);
1213                                 break;
1214                         }
1215                         case EXTERNAL_CODE: {
1216                                 InsetExternalParams p;
1217                                 Buffer const & buffer = *lyx_view_->buffer();
1218                                 data = InsetExternalMailer::params2string(p, buffer);
1219                                 break;
1220                         }
1221                         case FLOAT_CODE:  {
1222                                 InsetFloatParams p;
1223                                 data = InsetFloatMailer::params2string(p);
1224                                 break;
1225                         }
1226                         case LISTINGS_CODE: {
1227                                 InsetListingsParams p;
1228                                 data = InsetListingsMailer::params2string(p);
1229                                 break;
1230                         }
1231                         case GRAPHICS_CODE: {
1232                                 InsetGraphicsParams p;
1233                                 Buffer const & buffer = *lyx_view_->buffer();
1234                                 data = InsetGraphicsMailer::params2string(p, buffer);
1235                                 break;
1236                         }
1237                         case NOTE_CODE: {
1238                                 InsetNoteParams p;
1239                                 data = InsetNoteMailer::params2string(p);
1240                                 break;
1241                         }
1242                         case VSPACE_CODE: {
1243                                 VSpace space;
1244                                 data = InsetVSpaceMailer::params2string(space);
1245                                 break;
1246                         }
1247                         case WRAP_CODE: {
1248                                 InsetWrapParams p;
1249                                 data = InsetWrapMailer::params2string(p);
1250                                 break;
1251                         }
1252                         default:
1253                                 lyxerr << "Inset type '" << name <<
1254                                         "' not recognized in LFUN_DIALOG_SHOW_NEW_INSET" <<  endl;
1255                                 insetCodeOK = false;
1256                                 break;
1257                         } // end switch(code)
1258                         if (insetCodeOK)
1259                                 dispatch(FuncRequest(LFUN_DIALOG_SHOW, name + " " + data));
1260                         break;
1261                 }
1262
1263                 case LFUN_CITATION_INSERT: {
1264                         BOOST_ASSERT(lyx_view_);
1265                         if (!argument.empty()) {
1266                                 // we can have one optional argument, delimited by '|'
1267                                 // citation-insert <key>|<text_before>
1268                                 // this should be enhanced to also support text_after
1269                                 // and citation style
1270                                 string arg = argument;
1271                                 string opt1;
1272                                 if (contains(argument, "|")) {
1273                                         arg = token(argument, '|', 0);
1274                                         opt1 = token(argument, '|', 1);
1275                                 }
1276                                 InsetCommandParams icp(CITE_CODE);
1277                                 icp["key"] = from_utf8(arg);
1278                                 if (!opt1.empty())
1279                                         icp["before"] = from_utf8(opt1);
1280                                 string icstr = InsetCommandMailer::params2string("citation", icp);
1281                                 FuncRequest fr(LFUN_INSET_INSERT, icstr);
1282                                 dispatch(fr);
1283                         } else
1284                                 dispatch(FuncRequest(LFUN_DIALOG_SHOW_NEW_INSET, "citation"));
1285                         break;
1286                 }
1287
1288                 case LFUN_BUFFER_CHILD_OPEN: {
1289                         BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
1290                         Buffer * parent = lyx_view_->buffer();
1291                         FileName filename = makeAbsPath(argument, parent->filePath());
1292                         view()->saveBookmark(false);
1293                         Buffer * child = 0;
1294                         bool parsed = false;
1295                         if (theBufferList().exists(filename.absFilename())) {
1296                                 child = theBufferList().getBuffer(filename.absFilename());
1297                         } else {
1298                                 setMessage(bformat(_("Opening child document %1$s..."),
1299                                         makeDisplayPath(filename.absFilename())));
1300                                 child = lyx_view_->loadDocument(filename, false);
1301                                 parsed = true;
1302                         }
1303                         if (child) {
1304                                 // Set the parent name of the child document.
1305                                 // This makes insertion of citations and references in the child work,
1306                                 // when the target is in the parent or another child document.
1307                                 child->setParent(parent);
1308                                 updateLabels(*child->masterBuffer());
1309                                 lyx_view_->setBuffer(child);
1310                                 if (parsed)
1311                                         child->errors("Parse");
1312                         }
1313
1314                         // If a screen update is required (in case where auto_open is false),
1315                         // setBuffer() would have taken care of it already. Otherwise we shall
1316                         // reset the update flag because it can cause a circular problem.
1317                         // See bug 3970.
1318                         updateFlags = Update::None;
1319                         break;
1320                 }
1321
1322                 case LFUN_TOGGLE_CURSOR_FOLLOWS_SCROLLBAR:
1323                         BOOST_ASSERT(lyx_view_);
1324                         lyxrc.cursor_follows_scrollbar = !lyxrc.cursor_follows_scrollbar;
1325                         break;
1326
1327                 case LFUN_KEYMAP_OFF:
1328                         BOOST_ASSERT(lyx_view_ && lyx_view_->view());
1329                         lyx_view_->view()->getIntl().keyMapOn(false);
1330                         break;
1331
1332                 case LFUN_KEYMAP_PRIMARY:
1333                         BOOST_ASSERT(lyx_view_ && lyx_view_->view());
1334                         lyx_view_->view()->getIntl().keyMapPrim();
1335                         break;
1336
1337                 case LFUN_KEYMAP_SECONDARY:
1338                         BOOST_ASSERT(lyx_view_ && lyx_view_->view());
1339                         lyx_view_->view()->getIntl().keyMapSec();
1340                         break;
1341
1342                 case LFUN_KEYMAP_TOGGLE:
1343                         BOOST_ASSERT(lyx_view_ && lyx_view_->view());
1344                         lyx_view_->view()->getIntl().toggleKeyMap();
1345                         break;
1346
1347                 case LFUN_REPEAT: {
1348                         // repeat command
1349                         string countstr;
1350                         string rest = split(argument, countstr, ' ');
1351                         istringstream is(countstr);
1352                         int count = 0;
1353                         is >> count;
1354                         lyxerr << "repeat: count: " << count << " cmd: " << rest << endl;
1355                         for (int i = 0; i < count; ++i)
1356                                 dispatch(lyxaction.lookupFunc(rest));
1357                         break;
1358                 }
1359
1360                 case LFUN_COMMAND_SEQUENCE: {
1361                         // argument contains ';'-terminated commands
1362                         string arg = argument;
1363                         while (!arg.empty()) {
1364                                 string first;
1365                                 arg = split(arg, first, ';');
1366                                 FuncRequest func(lyxaction.lookupFunc(first));
1367                                 func.origin = cmd.origin;
1368                                 dispatch(func);
1369                         }
1370                         break;
1371                 }
1372
1373                 case LFUN_CALL: {
1374                         FuncRequest func;
1375                         if (LyX::ref().topLevelCmdDef().lock(argument, func)) {
1376                                 func.origin = cmd.origin;
1377                                 dispatch(func);
1378                                 LyX::ref().topLevelCmdDef().release(argument);
1379                         } else {
1380                                 if (func.action == LFUN_UNKNOWN_ACTION) {
1381                                         // unknown command definition
1382                                         lyxerr << "Warning: unknown command definition `"
1383                                                    << argument << "'"
1384                                                    << endl;
1385                                 } else {
1386                                         // recursion detected
1387                                         lyxerr << "Warning: Recursion in the command definition `"
1388                                                    << argument << "' detected"
1389                                                    << endl;
1390                                 }
1391                         }
1392                         break;
1393                 }
1394
1395                 case LFUN_PREFERENCES_SAVE: {
1396                         lyxrc.write(makeAbsPath("preferences",
1397                                                 package().user_support().absFilename()),
1398                                     false);
1399                         break;
1400                 }
1401
1402                 case LFUN_SET_COLOR: {
1403                         string lyx_name;
1404                         string const x11_name = split(argument, lyx_name, ' ');
1405                         if (lyx_name.empty() || x11_name.empty()) {
1406                                 setErrorMessage(from_ascii(N_(
1407                                                 "Syntax: set-color <lyx_name>"
1408                                                 " <x11_name>")));
1409                                 break;
1410                         }
1411
1412                         bool const graphicsbg_changed =
1413                                 (lyx_name == lcolor.getLyXName(Color_graphicsbg) &&
1414                                  x11_name != lcolor.getX11Name(Color_graphicsbg));
1415
1416                         if (!lcolor.setColor(lyx_name, x11_name)) {
1417                                 setErrorMessage(
1418                                                 bformat(_("Set-color \"%1$s\" failed "
1419                                                                        "- color is undefined or "
1420                                                                        "may not be redefined"),
1421                                                                            from_utf8(lyx_name)));
1422                                 break;
1423                         }
1424
1425                         theApp()->updateColor(lcolor.getFromLyXName(lyx_name));
1426
1427                         if (graphicsbg_changed) {
1428                                 // FIXME: The graphics cache no longer has a changeDisplay method.
1429 #if 0
1430                                 graphics::GCache::get().changeDisplay(true);
1431 #endif
1432                         }
1433                         break;
1434                 }
1435
1436                 case LFUN_MESSAGE:
1437                         BOOST_ASSERT(lyx_view_);
1438                         lyx_view_->message(from_utf8(argument));
1439                         break;
1440
1441                 case LFUN_EXTERNAL_EDIT: {
1442                         BOOST_ASSERT(lyx_view_);
1443                         FuncRequest fr(action, argument);
1444                         InsetExternal().dispatch(view()->cursor(), fr);
1445                         break;
1446                 }
1447
1448                 case LFUN_GRAPHICS_EDIT: {
1449                         FuncRequest fr(action, argument);
1450                         InsetGraphics().dispatch(view()->cursor(), fr);
1451                         break;
1452                 }
1453
1454                 case LFUN_ALL_INSETS_TOGGLE: {
1455                         BOOST_ASSERT(lyx_view_);
1456                         string action;
1457                         string const name = split(argument, action, ' ');
1458                         InsetCode const inset_code = insetCode(name);
1459
1460                         Cursor & cur = view()->cursor();
1461                         FuncRequest fr(LFUN_INSET_TOGGLE, action);
1462
1463                         Inset & inset = lyx_view_->buffer()->inset();
1464                         InsetIterator it  = inset_iterator_begin(inset);
1465                         InsetIterator const end = inset_iterator_end(inset);
1466                         for (; it != end; ++it) {
1467                                 if (!it->asInsetMath()
1468                                     && (inset_code == NO_CODE
1469                                     || inset_code == it->lyxCode())) {
1470                                         Cursor tmpcur = cur;
1471                                         tmpcur.pushBackward(*it);
1472                                         it->dispatch(tmpcur, fr);
1473                                 }
1474                         }
1475                         updateFlags = Update::Force | Update::FitCursor;
1476                         break;
1477                 }
1478
1479                 case LFUN_BUFFER_LANGUAGE: {
1480                         BOOST_ASSERT(lyx_view_);
1481                         Buffer & buffer = *lyx_view_->buffer();
1482                         Language const * oldL = buffer.params().language;
1483                         Language const * newL = languages.getLanguage(argument);
1484                         if (!newL || oldL == newL)
1485                                 break;
1486
1487                         if (oldL->rightToLeft() == newL->rightToLeft()
1488                             && !buffer.isMultiLingual())
1489                                 buffer.changeLanguage(oldL, newL);
1490                         break;
1491                 }
1492
1493                 case LFUN_BUFFER_SAVE_AS_DEFAULT: {
1494                         string const fname =
1495                                 addName(addPath(package().user_support().absFilename(), "templates/"),
1496                                         "defaults.lyx");
1497                         Buffer defaults(fname);
1498
1499                         istringstream ss(argument);
1500                         Lexer lex(0,0);
1501                         lex.setStream(ss);
1502                         int const unknown_tokens = defaults.readHeader(lex);
1503
1504                         if (unknown_tokens != 0) {
1505                                 lyxerr << "Warning in LFUN_BUFFER_SAVE_AS_DEFAULT!\n"
1506                                        << unknown_tokens << " unknown token"
1507                                        << (unknown_tokens == 1 ? "" : "s")
1508                                        << endl;
1509                         }
1510
1511                         if (defaults.writeFile(FileName(defaults.absFileName())))
1512                                 setMessage(bformat(_("Document defaults saved in %1$s"),
1513                                                    makeDisplayPath(fname)));
1514                         else
1515                                 setErrorMessage(from_ascii(N_("Unable to save document defaults")));
1516                         break;
1517                 }
1518
1519                 case LFUN_BUFFER_PARAMS_APPLY: {
1520                         BOOST_ASSERT(lyx_view_);
1521                         biblio::CiteEngine const oldEngine =
1522                                         lyx_view_->buffer()->params().getEngine();
1523
1524                         Buffer * buffer = lyx_view_->buffer();
1525
1526                         TextClassPtr oldClass = buffer->params().getTextClassPtr();
1527
1528                         Cursor & cur = view()->cursor();
1529                         cur.recordUndoFullDocument();
1530
1531                         istringstream ss(argument);
1532                         Lexer lex(0,0);
1533                         lex.setStream(ss);
1534                         int const unknown_tokens = buffer->readHeader(lex);
1535
1536                         if (unknown_tokens != 0) {
1537                                 lyxerr << "Warning in LFUN_BUFFER_PARAMS_APPLY!\n"
1538                                                 << unknown_tokens << " unknown token"
1539                                                 << (unknown_tokens == 1 ? "" : "s")
1540                                                 << endl;
1541                         }
1542
1543                         updateLayout(oldClass, buffer);
1544
1545                         biblio::CiteEngine const newEngine =
1546                                         lyx_view_->buffer()->params().getEngine();
1547
1548                         if (oldEngine != newEngine) {
1549                                 FuncRequest fr(LFUN_INSET_REFRESH);
1550
1551                                 Inset & inset = lyx_view_->buffer()->inset();
1552                                 InsetIterator it  = inset_iterator_begin(inset);
1553                                 InsetIterator const end = inset_iterator_end(inset);
1554                                 for (; it != end; ++it)
1555                                         if (it->lyxCode() == CITE_CODE)
1556                                                 it->dispatch(cur, fr);
1557                         }
1558
1559                         updateFlags = Update::Force | Update::FitCursor;
1560                         // We are here most certainaly because of a change in the document
1561                         // It is then better to make sure that all dialogs are in sync
1562                         // with current document settings. LyXView::restartCursor() achieve this.
1563                         lyx_view_->restartCursor();
1564                         break;
1565                 }
1566
1567                 case LFUN_LAYOUT_MODULES_CLEAR: {
1568                         BOOST_ASSERT(lyx_view_);
1569                         Buffer * buffer = lyx_view_->buffer();
1570                         TextClassPtr oldClass = buffer->params().getTextClassPtr();
1571                         view()->cursor().recordUndoFullDocument();
1572                         buffer->params().clearLayoutModules();
1573                         buffer->params().makeTextClass();
1574                         updateLayout(oldClass, buffer);
1575                         updateFlags = Update::Force | Update::FitCursor;
1576                         break;
1577                 }
1578
1579                 case LFUN_LAYOUT_MODULE_ADD: {
1580                         BOOST_ASSERT(lyx_view_);
1581                         Buffer * buffer = lyx_view_->buffer();
1582                         TextClassPtr oldClass = buffer->params().getTextClassPtr();
1583                         view()->cursor().recordUndoFullDocument();
1584                         buffer->params().addLayoutModule(argument);
1585                         buffer->params().makeTextClass();
1586                         updateLayout(oldClass, buffer);
1587                         updateFlags = Update::Force | Update::FitCursor;
1588                         break;
1589                 }
1590
1591                 case LFUN_TEXTCLASS_APPLY: {
1592                         BOOST_ASSERT(lyx_view_);
1593                         Buffer * buffer = lyx_view_->buffer();
1594
1595                         loadTextClass(argument);
1596
1597                         pair<bool, textclass_type> const tc_pair =
1598                                 textclasslist.numberOfClass(argument);
1599
1600                         if (!tc_pair.first)
1601                                 break;
1602
1603                         textclass_type const old_class = buffer->params().getBaseClass();
1604                         textclass_type const new_class = tc_pair.second;
1605
1606                         if (old_class == new_class)
1607                                 // nothing to do
1608                                 break;
1609
1610                         //Save the old, possibly modular, layout for use in conversion.
1611                         TextClassPtr oldClass = buffer->params().getTextClassPtr();
1612                         view()->cursor().recordUndoFullDocument();
1613                         buffer->params().setBaseClass(new_class);
1614                         buffer->params().makeTextClass();
1615                         updateLayout(oldClass, buffer);
1616                         updateFlags = Update::Force | Update::FitCursor;
1617                         break;
1618                 }
1619
1620                 case LFUN_LAYOUT_RELOAD: {
1621                         BOOST_ASSERT(lyx_view_);
1622                         Buffer * buffer = lyx_view_->buffer();
1623                         TextClassPtr oldClass = buffer->params().getTextClassPtr();
1624                         textclass_type const tc = buffer->params().getBaseClass();
1625                         textclasslist.reset(tc);
1626                         buffer->params().setBaseClass(tc);
1627                         buffer->params().makeTextClass();
1628                         updateLayout(oldClass, buffer);
1629                         updateFlags = Update::Force | Update::FitCursor;
1630                         break;
1631                 }
1632
1633                 case LFUN_TEXTCLASS_LOAD:
1634                         loadTextClass(argument);
1635                         break;
1636
1637                 case LFUN_LYXRC_APPLY: {
1638                         LyXRC const lyxrc_orig = lyxrc;
1639
1640                         istringstream ss(argument);
1641                         bool const success = lyxrc.read(ss) == 0;
1642
1643                         if (!success) {
1644                                 lyxerr << "Warning in LFUN_LYXRC_APPLY!\n"
1645                                        << "Unable to read lyxrc data"
1646                                        << endl;
1647                                 break;
1648                         }
1649
1650                         actOnUpdatedPrefs(lyxrc_orig, lyxrc);
1651
1652                         theApp()->resetGui();
1653
1654                         /// We force the redraw in any case because there might be
1655                         /// some screen font changes.
1656                         /// FIXME: only the current view will be updated. the Gui
1657                         /// class is able to furnish the list of views.
1658                         updateFlags = Update::Force;
1659                         break;
1660                 }
1661
1662                 case LFUN_BOOKMARK_GOTO:
1663                         // go to bookmark, open unopened file and switch to buffer if necessary
1664                         gotoBookmark(convert<unsigned int>(to_utf8(cmd.argument())), true, true);
1665                         updateFlags = Update::FitCursor;
1666                         break;
1667
1668                 case LFUN_BOOKMARK_CLEAR:
1669                         LyX::ref().session().bookmarks().clear();
1670                         break;
1671
1672                 default:
1673                         BOOST_ASSERT(theApp());
1674                         // Let the frontend dispatch its own actions.
1675                         if (theApp()->dispatch(cmd))
1676                                 // Nothing more to do.
1677                                 return;
1678
1679                         // Let the current LyXView dispatch its own actions.
1680                         BOOST_ASSERT(lyx_view_);
1681                         if (lyx_view_->dispatch(cmd)) {
1682                                 if (lyx_view_->view())
1683                                         updateFlags = lyx_view_->view()->cursor().result().update();
1684                                 break;
1685                         }
1686
1687                         BOOST_ASSERT(lyx_view_->view());
1688                         // Let the current BufferView dispatch its own actions.
1689                         if (view()->dispatch(cmd)) {
1690                                 // The BufferView took care of its own updates if needed.
1691                                 updateFlags = Update::None;
1692                                 break;
1693                         }
1694
1695                         // Let the current Cursor dispatch its own actions.
1696                         view()->cursor().getPos(cursorPosBeforeDispatchX_,
1697                                                 cursorPosBeforeDispatchY_);
1698                         view()->cursor().dispatch(cmd);
1699                         updateFlags = view()->cursor().result().update();
1700                         if (!view()->cursor().result().dispatched()) {
1701                                 // No update needed in this case (e.g. when reaching
1702                                 // top of document.
1703                                 updateFlags = Update::None;
1704                         }
1705                 }
1706
1707                 if (lyx_view_ && lyx_view_->buffer()) {
1708                         // BufferView::update() updates the ViewMetricsInfo and
1709                         // also initializes the position cache for all insets in
1710                         // (at least partially) visible top-level paragraphs.
1711                         // We will redraw the screen only if needed.
1712                         view()->processUpdateFlags(updateFlags);
1713
1714                         // if we executed a mutating lfun, mark the buffer as dirty
1715                         if (flag.enabled()
1716                             && !lyxaction.funcHasFlag(action, LyXAction::NoBuffer)
1717                             && !lyxaction.funcHasFlag(action, LyXAction::ReadOnly))
1718                                 lyx_view_->buffer()->markDirty();
1719
1720                         //Do we have a selection?
1721                         theSelection().haveSelection(view()->cursor().selection());
1722                 }
1723         }
1724         if (!quitting && lyx_view_) {
1725                 // Some messages may already be translated, so we cannot use _()
1726                 sendDispatchMessage(translateIfPossible(getMessage()), cmd);
1727         }
1728 }
1729
1730
1731 void LyXFunc::sendDispatchMessage(docstring const & msg, FuncRequest const & cmd)
1732 {
1733         const bool verbose = (cmd.origin == FuncRequest::MENU
1734                               || cmd.origin == FuncRequest::TOOLBAR
1735                               || cmd.origin == FuncRequest::COMMANDBUFFER);
1736
1737         if (cmd.action == LFUN_SELF_INSERT || !verbose) {
1738                 LYXERR(Debug::ACTION, "dispatch msg is " << to_utf8(msg));
1739                 if (!msg.empty())
1740                         lyx_view_->message(msg);
1741                 return;
1742         }
1743
1744         docstring dispatch_msg = msg;
1745         if (!dispatch_msg.empty())
1746                 dispatch_msg += ' ';
1747
1748         docstring comname = from_utf8(lyxaction.getActionName(cmd.action));
1749
1750         bool argsadded = false;
1751
1752         if (!cmd.argument().empty()) {
1753                 if (cmd.action != LFUN_UNKNOWN_ACTION) {
1754                         comname += ' ' + cmd.argument();
1755                         argsadded = true;
1756                 }
1757         }
1758
1759         docstring const shortcuts = theTopLevelKeymap().printBindings(cmd);
1760
1761         if (!shortcuts.empty())
1762                 comname += ": " + shortcuts;
1763         else if (!argsadded && !cmd.argument().empty())
1764                 comname += ' ' + cmd.argument();
1765
1766         if (!comname.empty()) {
1767                 comname = rtrim(comname);
1768                 dispatch_msg += '(' + rtrim(comname) + ')';
1769         }
1770
1771         LYXERR(Debug::ACTION, "verbose dispatch msg " << to_utf8(dispatch_msg));
1772         if (!dispatch_msg.empty())
1773                 lyx_view_->message(dispatch_msg);
1774 }
1775
1776
1777 void LyXFunc::closeBuffer()
1778 {
1779         // goto bookmark to update bookmark pit.
1780         for (size_t i = 0; i < LyX::ref().session().bookmarks().size(); ++i)
1781                 gotoBookmark(i+1, false, false);
1782
1783         lyx_view_->closeBuffer();
1784 }
1785
1786
1787 void LyXFunc::reloadBuffer()
1788 {
1789         FileName filename = lyx_view_->buffer()->fileName();
1790         // The user has already confirmed that the changes, if any, should
1791         // be discarded. So we just release the Buffer and don't call closeBuffer();
1792         theBufferList().release(lyx_view_->buffer());
1793         Buffer * buf = lyx_view_->loadDocument(filename);
1794         docstring const disp_fn = makeDisplayPath(filename.absFilename());
1795         docstring str;
1796         if (buf) {
1797                 updateLabels(*buf);
1798                 lyx_view_->setBuffer(buf);
1799                 buf->errors("Parse");
1800                 str = bformat(_("Document %1$s reloaded."), disp_fn);
1801         } else {
1802                 str = bformat(_("Could not reload document %1$s"), disp_fn);
1803         }
1804         lyx_view_->message(str);
1805 }
1806
1807 // Each "lyx_view_" should have it's own message method. lyxview and
1808 // the minibuffer would use the minibuffer, but lyxserver would
1809 // send an ERROR signal to its client.  Alejandro 970603
1810 // This function is bit problematic when it comes to NLS, to make the
1811 // lyx servers client be language indepenent we must not translate
1812 // strings sent to this func.
1813 void LyXFunc::setErrorMessage(docstring const & m) const
1814 {
1815         dispatch_buffer = m;
1816         errorstat = true;
1817 }
1818
1819
1820 void LyXFunc::setMessage(docstring const & m) const
1821 {
1822         dispatch_buffer = m;
1823 }
1824
1825
1826 docstring const LyXFunc::viewStatusMessage()
1827 {
1828         // When meta-fake key is pressed, show the key sequence so far + "M-".
1829         if (wasMetaKey())
1830                 return keyseq.print(KeySequence::ForGui) + "M-";
1831
1832         // Else, when a non-complete key sequence is pressed,
1833         // show the available options.
1834         if (keyseq.length() > 0 && !keyseq.deleted())
1835                 return keyseq.printOptions(true);
1836
1837         BOOST_ASSERT(lyx_view_);
1838         if (!lyx_view_->buffer())
1839                 return _("Welcome to LyX!");
1840
1841         return view()->cursor().currentState();
1842 }
1843
1844
1845 BufferView * LyXFunc::view() const
1846 {
1847         BOOST_ASSERT(lyx_view_);
1848         return lyx_view_->view();
1849 }
1850
1851
1852 bool LyXFunc::wasMetaKey() const
1853 {
1854         return (meta_fake_bit != NoModifier);
1855 }
1856
1857
1858 void LyXFunc::updateLayout(TextClassPtr const & oldlayout,
1859                            Buffer * buffer)
1860 {
1861         lyx_view_->message(_("Converting document to new document class..."));
1862
1863         StableDocIterator backcur(view()->cursor());
1864         ErrorList & el = buffer->errorList("Class Switch");
1865         cap::switchBetweenClasses(
1866                         oldlayout, buffer->params().getTextClassPtr(),
1867                         static_cast<InsetText &>(buffer->inset()), el);
1868
1869         view()->setCursor(backcur.asDocIterator(&(buffer->inset())));
1870
1871         buffer->errors("Class Switch");
1872         updateLabels(*buffer);
1873 }
1874
1875
1876 namespace {
1877
1878 void actOnUpdatedPrefs(LyXRC const & lyxrc_orig, LyXRC const & lyxrc_new)
1879 {
1880         // Why the switch you might ask. It is a trick to ensure that all
1881         // the elements in the LyXRCTags enum is handled. As you can see
1882         // there are no breaks at all. So it is just a huge fall-through.
1883         // The nice thing is that we will get a warning from the compiler
1884         // if we forget an element.
1885         LyXRC::LyXRCTags tag = LyXRC::RC_LAST;
1886         switch (tag) {
1887         case LyXRC::RC_ACCEPT_COMPOUND:
1888         case LyXRC::RC_ALT_LANG:
1889         case LyXRC::RC_PLAINTEXT_ROFF_COMMAND:
1890         case LyXRC::RC_PLAINTEXT_LINELEN:
1891         case LyXRC::RC_AUTOREGIONDELETE:
1892         case LyXRC::RC_AUTORESET_OPTIONS:
1893         case LyXRC::RC_AUTOSAVE:
1894         case LyXRC::RC_AUTO_NUMBER:
1895         case LyXRC::RC_BACKUPDIR_PATH:
1896         case LyXRC::RC_BIBTEX_COMMAND:
1897         case LyXRC::RC_BINDFILE:
1898         case LyXRC::RC_CHECKLASTFILES:
1899         case LyXRC::RC_USELASTFILEPOS:
1900         case LyXRC::RC_LOADSESSION:
1901         case LyXRC::RC_CHKTEX_COMMAND:
1902         case LyXRC::RC_CONVERTER:
1903         case LyXRC::RC_CONVERTER_CACHE_MAXAGE:
1904         case LyXRC::RC_COPIER:
1905         case LyXRC::RC_CURSOR_FOLLOWS_SCROLLBAR:
1906         case LyXRC::RC_CUSTOM_EXPORT_COMMAND:
1907         case LyXRC::RC_CUSTOM_EXPORT_FORMAT:
1908         case LyXRC::RC_DATE_INSERT_FORMAT:
1909         case LyXRC::RC_DEFAULT_LANGUAGE:
1910         case LyXRC::RC_DEFAULT_PAPERSIZE:
1911         case LyXRC::RC_DEFFILE:
1912         case LyXRC::RC_DIALOGS_ICONIFY_WITH_MAIN:
1913         case LyXRC::RC_DISPLAY_GRAPHICS:
1914         case LyXRC::RC_DOCUMENTPATH:
1915                 if (lyxrc_orig.document_path != lyxrc_new.document_path) {
1916                         FileName path(lyxrc_new.document_path);
1917                         if (path.exists() && path.isDirectory())
1918                                 package().document_dir() = FileName(lyxrc.document_path);
1919                 }
1920         case LyXRC::RC_ESC_CHARS:
1921         case LyXRC::RC_EXAMPLEPATH:
1922         case LyXRC::RC_FONT_ENCODING:
1923         case LyXRC::RC_FORMAT:
1924         case LyXRC::RC_INDEX_COMMAND:
1925         case LyXRC::RC_INPUT:
1926         case LyXRC::RC_KBMAP:
1927         case LyXRC::RC_KBMAP_PRIMARY:
1928         case LyXRC::RC_KBMAP_SECONDARY:
1929         case LyXRC::RC_LABEL_INIT_LENGTH:
1930         case LyXRC::RC_LANGUAGE_AUTO_BEGIN:
1931         case LyXRC::RC_LANGUAGE_AUTO_END:
1932         case LyXRC::RC_LANGUAGE_COMMAND_BEGIN:
1933         case LyXRC::RC_LANGUAGE_COMMAND_END:
1934         case LyXRC::RC_LANGUAGE_COMMAND_LOCAL:
1935         case LyXRC::RC_LANGUAGE_GLOBAL_OPTIONS:
1936         case LyXRC::RC_LANGUAGE_PACKAGE:
1937         case LyXRC::RC_LANGUAGE_USE_BABEL:
1938         case LyXRC::RC_MACRO_EDIT_STYLE:
1939         case LyXRC::RC_MAKE_BACKUP:
1940         case LyXRC::RC_MARK_FOREIGN_LANGUAGE:
1941         case LyXRC::RC_MOUSE_WHEEL_SPEED:
1942         case LyXRC::RC_NUMLASTFILES:
1943         case LyXRC::RC_PATH_PREFIX:
1944                 if (lyxrc_orig.path_prefix != lyxrc_new.path_prefix) {
1945                         prependEnvPath("PATH", lyxrc.path_prefix);
1946                 }
1947         case LyXRC::RC_PERS_DICT:
1948         case LyXRC::RC_PREVIEW:
1949         case LyXRC::RC_PREVIEW_HASHED_LABELS:
1950         case LyXRC::RC_PREVIEW_SCALE_FACTOR:
1951         case LyXRC::RC_PRINTCOLLCOPIESFLAG:
1952         case LyXRC::RC_PRINTCOPIESFLAG:
1953         case LyXRC::RC_PRINTER:
1954         case LyXRC::RC_PRINTEVENPAGEFLAG:
1955         case LyXRC::RC_PRINTEXSTRAOPTIONS:
1956         case LyXRC::RC_PRINTFILEEXTENSION:
1957         case LyXRC::RC_PRINTLANDSCAPEFLAG:
1958         case LyXRC::RC_PRINTODDPAGEFLAG:
1959         case LyXRC::RC_PRINTPAGERANGEFLAG:
1960         case LyXRC::RC_PRINTPAPERDIMENSIONFLAG:
1961         case LyXRC::RC_PRINTPAPERFLAG:
1962         case LyXRC::RC_PRINTREVERSEFLAG:
1963         case LyXRC::RC_PRINTSPOOL_COMMAND:
1964         case LyXRC::RC_PRINTSPOOL_PRINTERPREFIX:
1965         case LyXRC::RC_PRINTTOFILE:
1966         case LyXRC::RC_PRINTTOPRINTER:
1967         case LyXRC::RC_PRINT_ADAPTOUTPUT:
1968         case LyXRC::RC_PRINT_COMMAND:
1969         case LyXRC::RC_RTL_SUPPORT:
1970         case LyXRC::RC_SCREEN_DPI:
1971         case LyXRC::RC_SCREEN_FONT_ROMAN:
1972         case LyXRC::RC_SCREEN_FONT_ROMAN_FOUNDRY:
1973         case LyXRC::RC_SCREEN_FONT_SANS:
1974         case LyXRC::RC_SCREEN_FONT_SANS_FOUNDRY:
1975         case LyXRC::RC_SCREEN_FONT_SCALABLE:
1976         case LyXRC::RC_SCREEN_FONT_SIZES:
1977         case LyXRC::RC_SCREEN_FONT_TYPEWRITER:
1978         case LyXRC::RC_SCREEN_FONT_TYPEWRITER_FOUNDRY:
1979         case LyXRC::RC_GEOMETRY_SESSION:
1980         case LyXRC::RC_SCREEN_ZOOM:
1981         case LyXRC::RC_SERVERPIPE:
1982         case LyXRC::RC_SET_COLOR:
1983         case LyXRC::RC_SHOW_BANNER:
1984         case LyXRC::RC_SPELL_COMMAND:
1985         case LyXRC::RC_TEMPDIRPATH:
1986         case LyXRC::RC_TEMPLATEPATH:
1987         case LyXRC::RC_TEX_ALLOWS_SPACES:
1988         case LyXRC::RC_TEX_EXPECTS_WINDOWS_PATHS:
1989                 if (lyxrc_orig.windows_style_tex_paths != lyxrc_new.windows_style_tex_paths) {
1990                         os::windows_style_tex_paths(lyxrc_new.windows_style_tex_paths);
1991                 }
1992         case LyXRC::RC_UIFILE:
1993         case LyXRC::RC_USER_EMAIL:
1994         case LyXRC::RC_USER_NAME:
1995         case LyXRC::RC_USETEMPDIR:
1996         case LyXRC::RC_USE_ALT_LANG:
1997         case LyXRC::RC_USE_CONVERTER_CACHE:
1998         case LyXRC::RC_USE_ESC_CHARS:
1999         case LyXRC::RC_USE_INP_ENC:
2000         case LyXRC::RC_USE_PERS_DICT:
2001         case LyXRC::RC_USE_TOOLTIP:
2002         case LyXRC::RC_USE_PIXMAP_CACHE:
2003         case LyXRC::RC_USE_SPELL_LIB:
2004         case LyXRC::RC_VIEWDVI_PAPEROPTION:
2005         case LyXRC::RC_SORT_LAYOUTS:
2006         case LyXRC::RC_VIEWER:
2007         case LyXRC::RC_LAST:
2008                 break;
2009         }
2010 }
2011
2012 } // namespace anon
2013
2014
2015 } // namespace lyx