src/lyxfunc.C

   1 /**
   2  * \file lyxfunc.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Alfredo Braunstein
   7  * \author Lars Gullik Bjønnes
   8  * \author Jean-Marc Lasgouttes
   9  * \author Angus Leeming
  10  * \author John Levon
  11  * \author André Pönitz
  12  * \author Allan Rae
  13  * \author Dekel Tsur
  14  * \author Martin Vermeer
  15  * \author Jürgen Vigna
  16  *
  17  * Full author contact details are available in file CREDITS.
  18  */
  19
  20 #include <config.h>
  21
  22 #include "lyxfunc.h"
  23
  24 #include "BranchList.h"
  25 #include "buffer.h"
  26 #include "buffer_funcs.h"
  27 #include "bufferlist.h"
  28 #include "bufferparams.h"
  29 #include "BufferView.h"
  30 #include "cursor.h"
  31 #include "debug.h"
  32 #include "dispatchresult.h"
  33 #include "encoding.h"
  34 #include "exporter.h"
  35 #include "format.h"
  36 #include "funcrequest.h"
  37 #include "gettext.h"
  38 #include "importer.h"
  39 #include "intl.h"
  40 #include "iterators.h"
  41 #include "kbmap.h"
  42 #include "LColor.h"
  43 #include "lyx_cb.h"
  44 #include "LyXAction.h"
  45 #include "lyxfind.h"
  46 #include "lyxrc.h"
  47 #include "lyxrow.h"
  48 #include "lyxserver.h"
  49 #include "lyxvc.h"
  50 #include "paragraph.h"
  51 #include "ParagraphParameters.h"
  52 #include "undo.h"
  53
  54 #include "insets/insetbox.h"
  55 #include "insets/insetbranch.h"
  56 #include "insets/insetcommand.h"
  57 #include "insets/insetert.h"
  58 #include "insets/insetexternal.h"
  59 #include "insets/insetfloat.h"
  60 #include "insets/insetgraphics.h"
  61 #include "insets/insetnote.h"
  62 #include "insets/insettabular.h"
  63 #include "insets/insetvspace.h"
  64 #include "insets/insetwrap.h"
  65
  66 #include "frontends/Alert.h"
  67 #include "frontends/Dialogs.h"
  68 #include "frontends/FileDialog.h"
  69 #include "frontends/lyx_gui.h"
  70 #include "frontends/LyXKeySym.h"
  71 #include "frontends/LyXView.h"
  72 #include "frontends/Menubar.h"
  73 #include "frontends/Toolbar.h"
  74
  75 #include "support/FileInfo.h"
  76 #include "support/filetools.h"
  77 #include "support/forkedcontr.h"
  78 #include "support/globbing.h"
  79 #include "support/path.h"
  80 #include "support/path_defines.h"
  81 #include "support/tostr.h"
  82 #include "support/std_sstream.h"
  83 #include "support/os.h"
  84
  85 using bv_funcs::freefont2string;
  86
  87 using lyx::support::AddName;
  88 using lyx::support::AddPath;
  89 using lyx::support::bformat;
  90 using lyx::support::ChangeExtension;
  91 using lyx::support::FileFilterList;
  92 using lyx::support::FileInfo;
  93 using lyx::support::FileSearch;
  94 using lyx::support::ForkedcallsController;
  95 using lyx::support::i18nLibFileSearch;
  96 using lyx::support::IsDirWriteable;
  97 using lyx::support::IsFileReadable;
  98 using lyx::support::isStrInt;
  99 using lyx::support::MakeAbsPath;
 100 using lyx::support::MakeDisplayPath;
 101 using lyx::support::Path;
 102 using lyx::support::rtrim;
 103 using lyx::support::split;
 104 using lyx::support::strToInt;
 105 using lyx::support::strToUnsignedInt;
 106 using lyx::support::system_lyxdir;
 107 using lyx::support::token;
 108 using lyx::support::trim;
 109 using lyx::support::user_lyxdir;
 110 using lyx::support::prefixIs;
 111 using lyx::support::os::getTmpDir;
 112
 113 using std::endl;
 114 using std::make_pair;
 115 using std::pair;
 116 using std::string;
 117 using std::istringstream;
 118
 119
 120 extern BufferList bufferlist;
 121 extern LyXServer * lyxserver;
 122 extern bool selection_possible;
 123
 124 extern boost::scoped_ptr<kb_keymap> toplevel_keymap;
 125
 126 // (alkis)
 127 extern tex_accent_struct get_accent(kb_action action);
 128
 129
 130 LyXFunc::LyXFunc(LyXView * lv)
 131         : owner(lv),
 132         encoded_last_key(0),
 133         keyseq(toplevel_keymap.get(), toplevel_keymap.get()),
 134         cancel_meta_seq(toplevel_keymap.get(), toplevel_keymap.get()),
 135         meta_fake_bit(key_modifier::none)
 136 {
 137 }
 138
 139
 140 void LyXFunc::handleKeyFunc(kb_action action)
 141 {
 142         char c = encoded_last_key;
 143
 144         if (keyseq.length()) {
 145                 c = 0;
 146         }
 147
 148         owner->getIntl().getTransManager()
 149                 .deadkey(c, get_accent(action).accent, view()->getLyXText());
 150         // Need to clear, in case the minibuffer calls these
 151         // actions
 152         keyseq.clear();
 153         // copied verbatim from do_accent_char
 154         view()->cursor().resetAnchor();
 155         view()->update();
 156 }
 157
 158
 159 void LyXFunc::processKeySym(LyXKeySymPtr keysym, key_modifier::state state)
 160 {
 161         lyxerr[Debug::KEY] << "KeySym is " << keysym->getSymbolName() << endl;
 162
 163         // Do nothing if we have nothing (JMarc)
 164         if (!keysym->isOK()) {
 165                 lyxerr[Debug::KEY] << "Empty kbd action (probably composing)"
 166                                    << endl;
 167                 return;
 168         }
 169
 170         if (keysym->isModifier()) {
 171                 lyxerr[Debug::KEY] << "isModifier true" << endl;
 172                 return;
 173         }
 174
 175         Encoding const * encoding = view()->cursor().getEncoding();
 176
 177         encoded_last_key = keysym->getISOEncoded(encoding ? encoding->Name() : "");
 178
 179         // Do a one-deep top-level lookup for
 180         // cancel and meta-fake keys. RVDK_PATCH_5
 181         cancel_meta_seq.reset();
 182
 183         FuncRequest func = cancel_meta_seq.addkey(keysym, state);
 184         lyxerr[Debug::KEY] << "action first set to [" << func.action << ']' << endl;
 185
 186         // When not cancel or meta-fake, do the normal lookup.
 187         // Note how the meta_fake Mod1 bit is OR-ed in and reset afterwards.
 188         // Mostly, meta_fake_bit = key_modifier::none. RVDK_PATCH_5.
 189         if ((func.action != LFUN_CANCEL) && (func.action != LFUN_META_FAKE)) {
 190                 // remove Caps Lock and Mod2 as a modifiers
 191                 func = keyseq.addkey(keysym, (state | meta_fake_bit));
 192                 lyxerr[Debug::KEY] << "action now set to ["
 193                         << func.action << ']' << endl;
 194         }
 195
 196         // Dont remove this unless you know what you are doing.
 197         meta_fake_bit = key_modifier::none;
 198
 199         // can this happen now ?
 200         if (func.action == LFUN_NOACTION) {
 201                 func = FuncRequest(LFUN_PREFIX);
 202         }
 203
 204         if (lyxerr.debugging(Debug::KEY)) {
 205                 lyxerr << "Key [action="
 206                        << func.action << "]["
 207                        << keyseq.print() << ']'
 208                        << endl;
 209         }
 210
 211         // already here we know if it any point in going further
 212         // why not return already here if action == -1 and
 213         // num_bytes == 0? (Lgb)
 214
 215         if (keyseq.length() > 1) {
 216                 owner->message(keyseq.print());
 217         }
 218
 219
 220         // Maybe user can only reach the key via holding down shift.
 221         // Let's see. But only if shift is the only modifier
 222         if (func.action == LFUN_UNKNOWN_ACTION &&
 223             state == key_modifier::shift) {
 224                 lyxerr[Debug::KEY] << "Trying without shift" << endl;
 225                 func = keyseq.addkey(keysym, key_modifier::none);
 226                 lyxerr[Debug::KEY] << "Action now " << func.action << endl;
 227         }
 228
 229         if (func.action == LFUN_UNKNOWN_ACTION) {
 230                 // Hmm, we didn't match any of the keysequences. See
 231                 // if it's normal insertable text not already covered
 232                 // by a binding
 233                 if (keysym->isText() && keyseq.length() == 1) {
 234                         lyxerr[Debug::KEY] << "isText() is true, inserting." << endl;
 235                         func = FuncRequest(LFUN_SELFINSERT);
 236                 } else {
 237                         lyxerr[Debug::KEY] << "Unknown, !isText() - giving up" << endl;
 238                         owner->message(_("Unknown function."));
 239                         return;
 240                 }
 241         }
 242
 243         if (func.action == LFUN_SELFINSERT) {
 244                 if (encoded_last_key != 0) {
 245                         string arg(1, encoded_last_key);
 246                         dispatch(FuncRequest(LFUN_SELFINSERT, arg));
 247                         lyxerr[Debug::KEY]
 248                                 << "SelfInsert arg[`" << arg << "']" << endl;
 249                 }
 250         } else {
 251                 dispatch(func);
 252         }
 253 }
 254
 255
 256 FuncStatus LyXFunc::getStatus(FuncRequest const & cmd) const
 257 {
 258         //lyxerr << "LyXFunc::getStatus: cmd: " << cmd << endl;
 259         FuncStatus flag;
 260         Buffer * buf = owner->buffer();
 261         LCursor & cur = view()->cursor();
 262
 263         if (cmd.action == LFUN_NOACTION) {
 264                 setStatusMessage(N_("Nothing to do"));
 265                 flag.enabled(false);
 266                 return flag;
 267         }
 268
 269         switch (cmd.action) {
 270         case LFUN_UNKNOWN_ACTION:
 271 #ifndef HAVE_LIBAIKSAURUS
 272         case LFUN_THESAURUS_ENTRY:
 273 #endif
 274                 flag.unknown(true);
 275                 flag.enabled(false);
 276                 break;
 277         default:
 278                 flag |= lyx_gui::getStatus(cmd);
 279         }
 280
 281         if (flag.unknown()) {
 282                 setStatusMessage(N_("Unknown action"));
 283                 return flag;
 284         }
 285
 286         // the default error message if we disable the command
 287         setStatusMessage(N_("Command disabled"));
 288
 289         // Check whether we need a buffer
 290         if (!lyxaction.funcHasFlag(cmd.action, LyXAction::NoBuffer)) {
 291                 // Yes we need a buffer, do we have one?
 292                 if (buf) {
 293                         // yes
 294                         // Can we use a readonly buffer?
 295                         if (buf->isReadonly() &&
 296                             !lyxaction.funcHasFlag(cmd.action,
 297                                                    LyXAction::ReadOnly)) {
 298                                 // no
 299                                 setStatusMessage(N_("Document is read-only"));
 300                                 flag.enabled(false);
 301                         }
 302                 } else {
 303                         // no
 304                         setStatusMessage(N_("Command not allowed with"
 305                                             "out any document open"));
 306                         flag.enabled(false);
 307                         return flag;
 308                 }
 309         }
 310
 311         // I would really like to avoid having this switch and rather try to
 312         // encode this in the function itself.
 313         // -- And I'd rather let an inset decide which LFUNs it is willing
 314         // to handle (Andre')
 315         bool enable = true;
 316         switch (cmd.action) {
 317         case LFUN_TOOLTIPS_TOGGLE:
 318                 flag.setOnOff(owner->getDialogs().tooltipsEnabled());
 319                 break;
 320
 321         case LFUN_READ_ONLY_TOGGLE:
 322                 flag.setOnOff(buf->isReadonly());
 323                 break;
 324
 325         case LFUN_SWITCHBUFFER:
 326                 // toggle on the current buffer, but do not toggle off
 327                 // the other ones (is that a good idea?)
 328                 if (cmd.argument == buf->fileName())
 329                         flag.setOnOff(true);
 330                 break;
 331
 332         case LFUN_TRACK_CHANGES:
 333                 flag.setOnOff(buf->params().tracking_changes);
 334                 break;
 335
 336         case LFUN_EXPORT:
 337                 enable = cmd.argument == "custom"
 338                         || Exporter::IsExportable(*buf, cmd.argument);
 339                 break;
 340         case LFUN_UNDO:
 341                 enable = !buf->undostack().empty();
 342                 break;
 343         case LFUN_REDO:
 344                 enable = !buf->redostack().empty();
 345                 break;
 346         case LFUN_CUT:
 347         case LFUN_COPY:
 348                 enable = cur.selection();
 349                 break;
 350
 351         case LFUN_RUNCHKTEX:
 352                 enable = buf->isLatex() && lyxrc.chktex_command != "none";
 353                 break;
 354
 355         case LFUN_BUILDPROG:
 356                 enable = Exporter::IsExportable(*buf, "program");
 357                 break;
 358
 359         case LFUN_LAYOUT_TABULAR:
 360                 enable = cur.innerInsetOfType(InsetBase::TABULAR_CODE);
 361                 break;
 362
 363         case LFUN_LAYOUT:
 364         case LFUN_LAYOUT_PARAGRAPH:
 365                 enable = !cur.inset().forceDefaultParagraphs(&cur.inset());
 366                 break;
 367
 368         case LFUN_VC_REGISTER:
 369                 enable = !buf->lyxvc().inUse();
 370                 break;
 371         case LFUN_VC_CHECKIN:
 372                 enable = buf->lyxvc().inUse() && !buf->isReadonly();
 373                 break;
 374         case LFUN_VC_CHECKOUT:
 375                 enable = buf->lyxvc().inUse() && buf->isReadonly();
 376                 break;
 377         case LFUN_VC_REVERT:
 378         case LFUN_VC_UNDO:
 379                 enable = buf->lyxvc().inUse();
 380                 break;
 381         case LFUN_MENURELOAD:
 382                 enable = !buf->isUnnamed() && !buf->isClean();
 383                 break;
 384         case LFUN_BOOKMARK_GOTO:
 385                 enable = view()->isSavedPosition(strToUnsignedInt(cmd.argument));
 386                 break;
 387
 388         case LFUN_MERGE_CHANGES:
 389         case LFUN_ACCEPT_CHANGE:
 390         case LFUN_REJECT_CHANGE:
 391         case LFUN_ACCEPT_ALL_CHANGES:
 392         case LFUN_REJECT_ALL_CHANGES:
 393                 enable = buf && buf->params().tracking_changes;
 394                 break;
 395
 396         case LFUN_INSET_SETTINGS: {
 397                 enable = false;
 398                 if (!cur.size())
 399                         break;
 400                 UpdatableInset * inset = cur.inset().asUpdatableInset();
 401                 lyxerr << "inset: " << inset << endl;
 402                 if (!inset)
 403                         break;
 404
 405                 // jump back to owner if an InsetText, so
 406                 // we get back to the InsetTabular or whatever
 407                 if (inset->lyxCode() == InsetOld::TEXT_CODE)
 408                         inset = inset->owner();
 409                 lyxerr << "inset 2: " << inset << endl;
 410                 if (!inset)
 411                         break;
 412
 413                 InsetOld::Code code = inset->lyxCode();
 414                 switch (code) {
 415                         case InsetOld::TABULAR_CODE:
 416                                 enable = cmd.argument == "tabular";
 417                                 break;
 418                         case InsetOld::ERT_CODE:
 419                                 enable = cmd.argument == "ert";
 420                                 break;
 421                         case InsetOld::FLOAT_CODE:
 422                                 enable = cmd.argument == "float";
 423                                 break;
 424                         case InsetOld::WRAP_CODE:
 425                                 enable = cmd.argument == "wrap";
 426                                 break;
 427                         case InsetOld::NOTE_CODE:
 428                                 enable = cmd.argument == "note";
 429                                 break;
 430                         case InsetOld::BRANCH_CODE:
 431                                 enable = cmd.argument == "branch";
 432                                 break;
 433                         case InsetOld::BOX_CODE:
 434                                 enable = cmd.argument == "box";
 435                                 break;
 436                         default:
 437                                 break;
 438                 }
 439                 break;
 440         }
 441
 442         case LFUN_DIALOG_SHOW: {
 443                 string const name = cmd.getArg(0);
 444                 if (!buf)
 445                         enable = name == "aboutlyx"
 446                                 || name == "file"
 447                                 || name == "preferences"
 448                                 || name == "texinfo";
 449                 else if (name == "print")
 450                         enable = Exporter::IsExportable(*buf, "dvi")
 451                                 && lyxrc.print_command != "none";
 452                 else if (name == "character")
 453                         enable = cur.inset().lyxCode() != InsetOld::ERT_CODE;
 454                 else if (name == "vclog")
 455                         enable = buf->lyxvc().inUse();
 456                 else if (name == "latexlog")
 457                         enable = IsFileReadable(buf->getLogName().second);
 458                 break;
 459         }
 460
 461         case LFUN_MENUNEW:
 462         case LFUN_MENUNEWTMPLT:
 463         case LFUN_WORDFINDFORWARD:
 464         case LFUN_WORDFINDBACKWARD:
 465         case LFUN_PREFIX:
 466         case LFUN_EXEC_COMMAND:
 467         case LFUN_CANCEL:
 468         case LFUN_META_FAKE:
 469         case LFUN_CLOSEBUFFER:
 470         case LFUN_MENUWRITE:
 471         case LFUN_WRITEAS:
 472         case LFUN_UPDATE:
 473         case LFUN_PREVIEW:
 474         case LFUN_IMPORT:
 475         case LFUN_QUIT:
 476         case LFUN_TOCVIEW:
 477         case LFUN_AUTOSAVE:
 478         case LFUN_RECONFIGURE:
 479         case LFUN_HELP_OPEN:
 480         case LFUN_FILE_NEW:
 481         case LFUN_FILE_OPEN:
 482         case LFUN_DROP_LAYOUTS_CHOICE:
 483         case LFUN_MENU_OPEN_BY_NAME:
 484         case LFUN_GETNAME:
 485         case LFUN_NOTIFY:
 486         case LFUN_GOTOFILEROW:
 487         case LFUN_GOTO_PARAGRAPH:
 488         case LFUN_DIALOG_SHOW_NEW_INSET:
 489         case LFUN_DIALOG_SHOW_NEXT_INSET:
 490         case LFUN_DIALOG_UPDATE:
 491         case LFUN_DIALOG_HIDE:
 492         case LFUN_DIALOG_DISCONNECT_INSET:
 493         case LFUN_CHILDOPEN:
 494         case LFUN_TOGGLECURSORFOLLOW:
 495         case LFUN_KMAP_OFF:
 496         case LFUN_KMAP_PRIM:
 497         case LFUN_KMAP_SEC:
 498         case LFUN_KMAP_TOGGLE:
 499         case LFUN_REPEAT:
 500         case LFUN_SEQUENCE:
 501         case LFUN_SAVEPREFERENCES:
 502         case LFUN_SCREEN_FONT_UPDATE:
 503         case LFUN_SET_COLOR:
 504         case LFUN_MESSAGE:
 505         case LFUN_EXTERNAL_EDIT:
 506                 // these are handled in our dispatch()
 507                 break;
 508
 509         default:
 510                 cur.getStatus(cmd, flag);
 511                 return flag;
 512         }
 513
 514         flag.enabled(enable);
 515         return flag;
 516 }
 517
 518
 519 namespace {
 520
 521 bool ensureBufferClean(BufferView * bv)
 522 {
 523         Buffer & buf = *bv->buffer();
 524         if (buf.isClean())
 525                 return true;
 526
 527         string const file = MakeDisplayPath(buf.fileName(), 30);
 528         string text = bformat(_("The document %1$s has unsaved "
 529                                 "changes.\n\nDo you want to save "
 530                                 "the document?"), file);
 531         int const ret = Alert::prompt(_("Save changed document?"),
 532                                       text, 0, 1, _("&Save"),
 533                                       _("&Cancel"));
 534
 535         if (ret == 0)
 536                 bv->owner()->dispatch(FuncRequest(LFUN_MENUWRITE));
 537
 538         return buf.isClean();
 539 }
 540
 541 } //namespace anon
 542
 543
 544 void LyXFunc::dispatch(FuncRequest const & cmd, bool verbose)
 545 {
 546         string const argument = cmd.argument;
 547         kb_action const action = cmd.action;
 548
 549         lyxerr[Debug::ACTION] << "LyXFunc::dispatch: cmd: " << cmd << endl;
 550         //lyxerr << "LyXFunc::dispatch: cmd: " << cmd << endl;
 551
 552         // we have not done anything wrong yet.
 553         errorstat = false;
 554         dispatch_buffer.erase();
 555         selection_possible = false;
 556
 557         // We cannot use this function here
 558         if (!getStatus(cmd).enabled()) {
 559                 lyxerr[Debug::ACTION] << "LyXFunc::dispatch: "
 560                        << lyxaction.getActionName(action)
 561                        << " [" << action << "] is disabled at this location"
 562                        << endl;
 563                 setErrorMessage(getStatusMessage());
 564
 565         } else {
 566
 567                 if (view()->available())
 568                         view()->hideCursor();
 569
 570                 switch (action) {
 571
 572                 case LFUN_WORDFINDFORWARD:
 573                 case LFUN_WORDFINDBACKWARD: {
 574                         static string last_search;
 575                         string searched_string;
 576
 577                         if (!argument.empty()) {
 578                                 last_search = argument;
 579                                 searched_string = argument;
 580                         } else {
 581                                 searched_string = last_search;
 582                         }
 583
 584                         if (searched_string.empty())
 585                                 break;
 586
 587                         bool const fw = action == LFUN_WORDFINDFORWARD;
 588                         string const data =
 589                                 lyx::find::find2string(searched_string, true, false, fw);
 590                         view()->dispatch(FuncRequest(LFUN_WORD_FIND, data));
 591                         break;
 592                 }
 593
 594                 case LFUN_PREFIX:
 595                         owner->message(keyseq.printOptions());
 596                         break;
 597
 598                 case LFUN_EXEC_COMMAND:
 599                         owner->focus_command_buffer();
 600                         break;
 601
 602                 case LFUN_CANCEL:
 603                         keyseq.reset();
 604                         meta_fake_bit = key_modifier::none;
 605                         if (view()->available())
 606                                 // cancel any selection
 607                                 dispatch(FuncRequest(LFUN_MARK_OFF));
 608                         setMessage(N_("Cancel"));
 609                         break;
 610
 611                 case LFUN_META_FAKE:
 612                         meta_fake_bit = key_modifier::alt;
 613                         setMessage(keyseq.print());
 614                         break;
 615
 616                 case LFUN_READ_ONLY_TOGGLE:
 617                         if (owner->buffer()->lyxvc().inUse())
 618                                 owner->buffer()->lyxvc().toggleReadOnly();
 619                         else
 620                                 owner->buffer()->setReadonly(
 621                                         !owner->buffer()->isReadonly());
 622                         break;
 623
 624                 // --- Menus -----------------------------------------------
 625                 case LFUN_MENUNEW:
 626                         menuNew(argument, false);
 627                         break;
 628
 629                 case LFUN_MENUNEWTMPLT:
 630                         menuNew(argument, true);
 631                         break;
 632
 633                 case LFUN_CLOSEBUFFER:
 634                         closeBuffer();
 635                         break;
 636
 637                 case LFUN_MENUWRITE:
 638                         if (!owner->buffer()->isUnnamed()) {
 639                                 string const str = bformat(_("Saving document %1$s..."),
 640                                          MakeDisplayPath(owner->buffer()->fileName()));
 641                                 owner->message(str);
 642                                 MenuWrite(owner->buffer());
 643                                 owner->message(str + _(" done."));
 644                         } else
 645                                 WriteAs(owner->buffer());
 646                         break;
 647
 648                 case LFUN_WRITEAS:
 649                         WriteAs(owner->buffer(), argument);
 650                         break;
 651
 652                 case LFUN_MENURELOAD: {
 653                         string const file = MakeDisplayPath(view()->buffer()->fileName(), 20);
 654                         string text = bformat(_("Any changes will be lost. Are you sure "
 655                                 "you want to revert to the saved version of the document %1$s?"), file);
 656                         int const ret = Alert::prompt(_("Revert to saved document?"),
 657                                 text, 0, 1, _("&Revert"), _("&Cancel"));
 658
 659                         if (ret == 0)
 660                                 view()->reload();
 661                         break;
 662                 }
 663
 664                 case LFUN_UPDATE:
 665                         Exporter::Export(owner->buffer(), argument, true);
 666                         view()->showErrorList(BufferFormat(*owner->buffer()));
 667                         break;
 668
 669                 case LFUN_PREVIEW:
 670                         Exporter::Preview(owner->buffer(), argument);
 671                         view()->showErrorList(BufferFormat(*owner->buffer()));
 672                         break;
 673
 674                 case LFUN_BUILDPROG:
 675                         Exporter::Export(owner->buffer(), "program", true);
 676                         view()->showErrorList(_("Build"));
 677                         break;
 678
 679                 case LFUN_RUNCHKTEX:
 680                         owner->buffer()->runChktex();
 681                         view()->showErrorList(_("ChkTeX"));
 682                         break;
 683
 684                 case LFUN_EXPORT:
 685                         if (argument == "custom")
 686                                 owner->getDialogs().showSendto();
 687                         else {
 688                                 Exporter::Export(owner->buffer(), argument, false);
 689                                 view()->showErrorList(BufferFormat(*owner->buffer()));
 690                         }
 691                         break;
 692
 693                 case LFUN_IMPORT:
 694                         doImport(argument);
 695                         break;
 696
 697                 case LFUN_QUIT:
 698 #if 0
 699                         // test speed of DocumentIterator
 700                         lyxerr << "start" << endl;
 701                         for (DocumentIterator it(owner->buffer()->inset()), end;
 702                                 it != end; it.forwardPos())
 703                                 ;
 704                         lyxerr << "end" << endl;
 705 #endif
 706                         QuitLyX();
 707                         break;
 708
 709                 case LFUN_TOCVIEW: {
 710                         InsetCommandParams p("tableofcontents");
 711                         string const data = InsetCommandMailer::params2string("toc", p);
 712                         owner->getDialogs().show("toc", data, 0);
 713                         break;
 714                 }
 715
 716                 case LFUN_AUTOSAVE:
 717                         AutoSave(view());
 718                         break;
 719
 720                 case LFUN_RECONFIGURE:
 721                         Reconfigure(view());
 722                         break;
 723
 724                 case LFUN_HELP_OPEN: {
 725                         string const arg = argument;
 726                         if (arg.empty()) {
 727                                 setErrorMessage(N_("Missing argument"));
 728                                 break;
 729                         }
 730                         string const fname = i18nLibFileSearch("doc", arg, "lyx");
 731                         if (fname.empty()) {
 732                                 lyxerr << "LyX: unable to find documentation file `"
 733                                                          << arg << "'. Bad installation?" << endl;
 734                                 break;
 735                         }
 736                         owner->message(bformat(_("Opening help file %1$s..."),
 737                                 MakeDisplayPath(fname)));
 738                         view()->loadLyXFile(fname, false);
 739                         break;
 740                 }
 741
 742                 // --- version control -------------------------------
 743                 case LFUN_VC_REGISTER:
 744                         if (!ensureBufferClean(view()))
 745                                 break;
 746                         if (!owner->buffer()->lyxvc().inUse()) {
 747                                 owner->buffer()->lyxvc().registrer();
 748                                 view()->reload();
 749                         }
 750                         break;
 751
 752                 case LFUN_VC_CHECKIN:
 753                         if (!ensureBufferClean(view()))
 754                                 break;
 755                         if (owner->buffer()->lyxvc().inUse()
 756                                         && !owner->buffer()->isReadonly()) {
 757                                 owner->buffer()->lyxvc().checkIn();
 758                                 view()->reload();
 759                         }
 760                         break;
 761
 762                 case LFUN_VC_CHECKOUT:
 763                         if (!ensureBufferClean(view()))
 764                                 break;
 765                         if (owner->buffer()->lyxvc().inUse()
 766                                         && owner->buffer()->isReadonly()) {
 767                                 owner->buffer()->lyxvc().checkOut();
 768                                 view()->reload();
 769                         }
 770                         break;
 771
 772                 case LFUN_VC_REVERT:
 773                         owner->buffer()->lyxvc().revert();
 774                         view()->reload();
 775                         break;
 776
 777                 case LFUN_VC_UNDO:
 778                         owner->buffer()->lyxvc().undoLast();
 779                         view()->reload();
 780                         break;
 781
 782                 // --- buffers ----------------------------------------
 783                 case LFUN_SWITCHBUFFER:
 784                         view()->setBuffer(bufferlist.getBuffer(argument));
 785                         break;
 786
 787                 case LFUN_FILE_NEW:
 788                         NewFile(view(), argument);
 789                         break;
 790
 791                 case LFUN_FILE_OPEN:
 792                         open(argument);
 793                         break;
 794
 795                 case LFUN_DROP_LAYOUTS_CHOICE:
 796                         owner->getToolbar().openLayoutList();
 797                         break;
 798
 799                 case LFUN_MENU_OPEN_BY_NAME:
 800                         owner->getMenubar().openByName(argument);
 801                         break;
 802
 803                 // --- lyxserver commands ----------------------------
 804                 case LFUN_GETNAME:
 805                         setMessage(owner->buffer()->fileName());
 806                         lyxerr[Debug::INFO] << "FNAME["
 807                                                          << owner->buffer()->fileName()
 808                                                          << "] " << endl;
 809                         break;
 810
 811                 case LFUN_NOTIFY:
 812                         dispatch_buffer = keyseq.print();
 813                         lyxserver->notifyClient(dispatch_buffer);
 814                         break;
 815
 816                 case LFUN_GOTOFILEROW: {
 817                         string file_name;
 818                         int row;
 819                         istringstream is(argument);
 820                         is >> file_name >> row;
 821                         if (prefixIs(file_name, getTmpDir())) {
 822                                 // Needed by inverse dvi search. If it is a file
 823                                 // in tmpdir, call the apropriated function
 824                                 view()->setBuffer(bufferlist.getBufferFromTmp(file_name));
 825                         } else {
 826                                 // Must replace extension of the file to be .lyx
 827                                 // and get full path
 828                                 string const s = ChangeExtension(file_name, ".lyx");
 829                                 // Either change buffer or load the file
 830                                 if (bufferlist.exists(s)) {
 831                                         view()->setBuffer(bufferlist.getBuffer(s));
 832                                 } else {
 833                                         view()->loadLyXFile(s);
 834                                 }
 835                         }
 836
 837                         view()->setCursorFromRow(row);
 838
 839                         view()->center();
 840                         // see BufferView_pimpl::center()
 841                         view()->updateScrollbar();
 842                         break;
 843                 }
 844
 845                 case LFUN_GOTO_PARAGRAPH: {
 846                         istringstream is(argument);
 847                         int id;
 848                         is >> id;
 849                         ParIterator par = owner->buffer()->getParFromID(id);
 850                         if (par == owner->buffer()->par_iterator_end()) {
 851                                 lyxerr[Debug::INFO] << "No matching paragraph found! ["
 852                                                                 << id << ']' << endl;
 853                                 break;
 854                         } else {
 855                                 lyxerr[Debug::INFO] << "Paragraph " << par->id()
 856                                                                 << " found." << endl;
 857                         }
 858
 859                         // Set the cursor
 860                         view()->setCursor(par, 0);
 861
 862                         view()->switchKeyMap();
 863                         owner->view_state_changed();
 864
 865                         view()->center();
 866                         // see BufferView_pimpl::center()
 867                         view()->updateScrollbar();
 868                         break;
 869                 }
 870
 871                 case LFUN_DIALOG_SHOW: {
 872                         string const name = cmd.getArg(0);
 873                         string data = trim(cmd.argument.substr(name.size()));
 874
 875                         if (name == "character") {
 876                                 data = freefont2string();
 877                                 if (!data.empty())
 878                                         owner->getDialogs().show("character", data);
 879                         }
 880                         else if (name == "document")
 881                                 owner->getDialogs().showDocument();
 882                         else if (name == "preamble")
 883                                 owner->getDialogs().showPreamble();
 884                         else if (name == "preferences")
 885                                 owner->getDialogs().showPreferences();
 886                         else if (name == "print")
 887                                 owner->getDialogs().showPrint();
 888                         else if (name == "spellchecker")
 889                                 owner->getDialogs().showSpellchecker();
 890
 891                         else if (name == "latexlog") {
 892                                 pair<Buffer::LogType, string> const logfile =
 893                                         owner->buffer()->getLogName();
 894                                 switch (logfile.first) {
 895                                 case Buffer::latexlog:
 896                                         data = "latex ";
 897                                         break;
 898                                 case Buffer::buildlog:
 899                                         data = "literate ";
 900                                         break;
 901                                 }
 902                                 data += logfile.second;
 903                                 owner->getDialogs().show("log", data);
 904                         }
 905                         else if (name == "vclog") {
 906                                 string const data = "vc " +
 907                                         owner->buffer()->lyxvc().getLogFile();
 908                                 owner->getDialogs().show("log", data);
 909                         }
 910                         else
 911                                 owner->getDialogs().show(name, data);
 912                         break;
 913                 }
 914
 915                 case LFUN_DIALOG_SHOW_NEW_INSET: {
 916                         string const name = cmd.getArg(0);
 917                         string data = trim(cmd.argument.substr(name.size()));
 918                         if (name == "bibitem" ||
 919                             name == "bibtex" ||
 920                             name == "include" ||
 921                             name == "index" ||
 922                             name == "label" ||
 923                             name == "ref" ||
 924                             name == "toc" ||
 925                             name == "url") {
 926                                 InsetCommandParams p(name);
 927                                 data = InsetCommandMailer::params2string(name, p);
 928                         } else if (name == "box") {
 929                                 // \c data == "Boxed" || "Frameless" etc
 930                                 InsetBoxParams p(data);
 931                                 data = InsetBoxMailer::params2string(p);
 932                         } else if (name == "branch") {
 933                                 InsetBranchParams p;
 934                                 data = InsetBranchMailer::params2string(p);
 935                         } else if (name == "citation") {
 936                                 InsetCommandParams p("cite");
 937                                 data = InsetCommandMailer::params2string(name, p);
 938                         } else if (name == "ert") {
 939                                 data = InsetERTMailer::params2string(InsetCollapsable::Open);
 940                         } else if (name == "external") {
 941                                 InsetExternalParams p;
 942                                 Buffer const & buffer = *owner->buffer();
 943                                 data = InsetExternalMailer::params2string(p, buffer);
 944                         } else if (name == "float") {
 945                                 InsetFloatParams p;
 946                                 data = InsetFloatMailer::params2string(p);
 947                         } else if (name == "graphics") {
 948                                 InsetGraphicsParams p;
 949                                 Buffer const & buffer = *owner->buffer();
 950                                 data = InsetGraphicsMailer::params2string(p, buffer);
 951                         } else if (name == "note") {
 952                                 InsetNoteParams p;
 953                                 data = InsetNoteMailer::params2string(p);
 954                         } else if (name == "vspace") {
 955                                 VSpace space;
 956                                 data = InsetVSpaceMailer::params2string(space);
 957                         } else if (name == "wrap") {
 958                                 InsetWrapParams p;
 959                                 data = InsetWrapMailer::params2string(p);
 960                         }
 961                         owner->getDialogs().show(name, data, 0);
 962                         break;
 963                 }
 964
 965                 case LFUN_DIALOG_SHOW_NEXT_INSET:
 966                         break;
 967
 968                 case LFUN_DIALOG_UPDATE: {
 969                         string const & name = argument;
 970                         // Can only update a dialog connected to an existing inset
 971                         InsetBase * inset = owner->getDialogs().getOpenInset(name);
 972                         if (inset) {
 973                                 FuncRequest fr(LFUN_INSET_DIALOG_UPDATE, cmd.argument);
 974                                 inset->dispatch(view()->cursor(), fr);
 975                         } else if (name == "paragraph") {
 976                                 dispatch(FuncRequest(LFUN_PARAGRAPH_UPDATE));
 977                         }
 978                         break;
 979                 }
 980
 981                 case LFUN_DIALOG_HIDE:
 982                         Dialogs::hide(argument, 0);
 983                         break;
 984
 985                 case LFUN_DIALOG_DISCONNECT_INSET:
 986                         owner->getDialogs().disconnect(argument);
 987                         break;
 988
 989                 case LFUN_CHILDOPEN: {
 990                         string const filename =
 991                                 MakeAbsPath(argument, owner->buffer()->filePath());
 992                         setMessage(N_("Opening child document ") +
 993                                          MakeDisplayPath(filename) + "...");
 994                         view()->savePosition(0);
 995                         string const parentfilename = owner->buffer()->fileName();
 996                         if (bufferlist.exists(filename))
 997                                 view()->setBuffer(bufferlist.getBuffer(filename));
 998                         else
 999                                 view()->loadLyXFile(filename);
1000                         // Set the parent name of the child document.
1001                         // This makes insertion of citations and references in the child work,
1002                         // when the target is in the parent or another child document.
1003                         owner->buffer()->setParentName(parentfilename);
1004                         break;
1005                 }
1006
1007                 case LFUN_TOGGLECURSORFOLLOW:
1008                         lyxrc.cursor_follows_scrollbar = !lyxrc.cursor_follows_scrollbar;
1009                         break;
1010
1011                 case LFUN_KMAP_OFF:
1012                         owner->getIntl().KeyMapOn(false);
1013                         break;
1014
1015                 case LFUN_KMAP_PRIM:
1016                         owner->getIntl().KeyMapPrim();
1017                         break;
1018
1019                 case LFUN_KMAP_SEC:
1020                         owner->getIntl().KeyMapSec();
1021                         break;
1022
1023                 case LFUN_KMAP_TOGGLE:
1024                         owner->getIntl().ToggleKeyMap();
1025                         break;
1026
1027                 case LFUN_REPEAT: {
1028                         // repeat command
1029                         string countstr;
1030                         string rest = split(argument, countstr, ' ');
1031                         istringstream is(countstr);
1032                         int count = 0;
1033                         is >> count;
1034                         lyxerr << "repeat: count: " << count << " cmd: " << rest << endl;
1035                         for (int i = 0; i < count; ++i)
1036                                 dispatch(lyxaction.lookupFunc(rest));
1037                         break;
1038                 }
1039
1040                 case LFUN_SEQUENCE:
1041                         // argument contains ';'-terminated commands
1042                         while (!argument.empty()) {
1043                                 string first;
1044                                 string rest = split(argument, first, ';');
1045                                 dispatch(lyxaction.lookupFunc(rest));
1046                         }
1047                         break;
1048
1049                 case LFUN_SAVEPREFERENCES: {
1050                         Path p(user_lyxdir());
1051                         lyxrc.write("preferences");
1052                         break;
1053                 }
1054
1055                 case LFUN_SCREEN_FONT_UPDATE:
1056                         // handle the screen font changes.
1057                         lyxrc.set_font_norm_type();
1058                         lyx_gui::update_fonts();
1059                         // All visible buffers will need resize
1060                         view()->resize();
1061                         break;
1062
1063                 case LFUN_SET_COLOR: {
1064                         string lyx_name;
1065                         string const x11_name = split(argument, lyx_name, ' ');
1066                         if (lyx_name.empty() || x11_name.empty()) {
1067                                 setErrorMessage(N_("Syntax: set-color <lyx_name>"
1068                                                         " <x11_name>"));
1069                                 break;
1070                         }
1071
1072                         bool const graphicsbg_changed =
1073                                 (lyx_name == lcolor.getLyXName(LColor::graphicsbg) &&
1074                                  x11_name != lcolor.getX11Name(LColor::graphicsbg));
1075
1076                         LColor::color col = lcolor.getFromLyXName(lyx_name);
1077                         if (!lcolor.setColor(col, x11_name)) {
1078                                 setErrorMessage(
1079                                         bformat(_("Set-color \"%1$s\" failed "
1080                                                                 "- color is undefined or "
1081                                                                 "may not be redefined"), lyx_name));
1082                                 break;
1083                         }
1084
1085                         lyx_gui::update_color(lcolor.getFromLyXName(lyx_name));
1086
1087                         if (graphicsbg_changed) {
1088 #ifdef WITH_WARNINGS
1089 #warning FIXME!! The graphics cache no longer has a changeDisplay method.
1090 #endif
1091 #if 0
1092                                 lyx::graphics::GCache::get().changeDisplay(true);
1093 #endif
1094                         }
1095                         break;
1096                 }
1097
1098                 case LFUN_MESSAGE:
1099                         owner->message(argument);
1100                         break;
1101
1102                 case LFUN_TOOLTIPS_TOGGLE:
1103                         owner->getDialogs().toggleTooltips();
1104                         break;
1105
1106                 case LFUN_EXTERNAL_EDIT: {
1107                         FuncRequest fr(action, argument);
1108                         InsetExternal().dispatch(view()->cursor(), fr);
1109                         break;
1110                 }
1111
1112                 default: {
1113                         DispatchResult res = view()->cursor().dispatch(cmd);
1114                         if (!res.dispatched());
1115                                 view()->dispatch(cmd);
1116                         break;
1117                 }
1118                 }
1119         }
1120
1121         if (view()->available()) {
1122                 view()->fitCursor();
1123                 view()->update();
1124                 view()->cursor().updatePos();
1125                 // if we executed a mutating lfun, mark the buffer as dirty
1126                 if (getStatus(cmd).enabled()
1127                     && !lyxaction.funcHasFlag(cmd.action, LyXAction::NoBuffer)
1128                     && !lyxaction.funcHasFlag(cmd.action, LyXAction::ReadOnly))
1129                         view()->buffer()->markDirty();
1130         }
1131
1132         if (view()->cursor().inTexted()) {
1133                 view()->owner()->updateLayoutChoice();
1134                 sendDispatchMessage(getMessage(), cmd, verbose);
1135         }
1136 }
1137
1138
1139 void LyXFunc::sendDispatchMessage(string const & msg,
1140                                   FuncRequest const & cmd, bool verbose)
1141 {
1142         owner->updateMenubar();
1143         owner->updateToolbar();
1144
1145         if (cmd.action == LFUN_SELFINSERT || !verbose) {
1146                 lyxerr[Debug::ACTION] << "dispatch msg is " << msg << endl;
1147                 if (!msg.empty())
1148                         owner->message(msg);
1149                 return;
1150         }
1151
1152         string dispatch_msg = msg;
1153         if (!dispatch_msg.empty())
1154                 dispatch_msg += ' ';
1155
1156         string comname = lyxaction.getActionName(cmd.action);
1157
1158         bool argsadded = false;
1159
1160         if (!cmd.argument.empty()) {
1161                 if (cmd.action != LFUN_UNKNOWN_ACTION) {
1162                         comname += ' ' + cmd.argument;
1163                         argsadded = true;
1164                 }
1165         }
1166
1167         string const shortcuts = toplevel_keymap->findbinding(cmd);
1168
1169         if (!shortcuts.empty()) {
1170                 comname += ": " + shortcuts;
1171         } else if (!argsadded && !cmd.argument.empty()) {
1172                 comname += ' ' + cmd.argument;
1173         }
1174
1175         if (!comname.empty()) {
1176                 comname = rtrim(comname);
1177                 dispatch_msg += '(' + comname + ')';
1178         }
1179
1180         lyxerr[Debug::ACTION] << "verbose dispatch msg " << dispatch_msg << endl;
1181         if (!dispatch_msg.empty())
1182                 owner->message(dispatch_msg);
1183 }
1184
1185
1186 void LyXFunc::setupLocalKeymap()
1187 {
1188         keyseq.stdmap = toplevel_keymap.get();
1189         keyseq.curmap = toplevel_keymap.get();
1190         cancel_meta_seq.stdmap = toplevel_keymap.get();
1191         cancel_meta_seq.curmap = toplevel_keymap.get();
1192 }
1193
1194
1195 void LyXFunc::menuNew(string const & name, bool fromTemplate)
1196 {
1197         string initpath = lyxrc.document_path;
1198         string filename(name);
1199
1200         if (view()->available()) {
1201                 string const trypath = owner->buffer()->filePath();
1202                 // If directory is writeable, use this as default.
1203                 if (IsDirWriteable(trypath))
1204                         initpath = trypath;
1205         }
1206
1207         static int newfile_number;
1208
1209         if (filename.empty()) {
1210                 filename = AddName(lyxrc.document_path,
1211                             "newfile" + tostr(++newfile_number) + ".lyx");
1212                 FileInfo fi(filename);
1213                 while (bufferlist.exists(filename) || fi.readable()) {
1214                         ++newfile_number;
1215                         filename = AddName(lyxrc.document_path,
1216                                     "newfile" + tostr(newfile_number) +
1217                                     ".lyx");
1218                         fi.newFile(filename);
1219                 }
1220         }
1221
1222         // The template stuff
1223         string templname;
1224         if (fromTemplate) {
1225                 FileDialog fileDlg(_("Select template file"),
1226                         LFUN_SELECT_FILE_SYNC,
1227                         make_pair(string(_("Documents|#o#O")),
1228                                   string(lyxrc.document_path)),
1229                         make_pair(string(_("Templates|#T#t")),
1230                                   string(lyxrc.template_path)));
1231
1232                 FileDialog::Result result =
1233                         fileDlg.open(lyxrc.template_path,
1234                                      FileFilterList(_("LyX Documents (*.lyx)")),
1235                                      string());
1236
1237                 if (result.first == FileDialog::Later)
1238                         return;
1239                 if (result.second.empty())
1240                         return;
1241                 templname = result.second;
1242         }
1243
1244         view()->newFile(filename, templname, !name.empty());
1245 }
1246
1247
1248 void LyXFunc::open(string const & fname)
1249 {
1250         string initpath = lyxrc.document_path;
1251
1252         if (view()->available()) {
1253                 string const trypath = owner->buffer()->filePath();
1254                 // If directory is writeable, use this as default.
1255                 if (IsDirWriteable(trypath))
1256                         initpath = trypath;
1257         }
1258
1259         string filename;
1260
1261         if (fname.empty()) {
1262                 FileDialog fileDlg(_("Select document to open"),
1263                         LFUN_FILE_OPEN,
1264                         make_pair(string(_("Documents|#o#O")),
1265                                   string(lyxrc.document_path)),
1266                         make_pair(string(_("Examples|#E#e")),
1267                                   string(AddPath(system_lyxdir(), "examples"))));
1268
1269                 FileDialog::Result result =
1270                         fileDlg.open(initpath,
1271                                      FileFilterList(_("LyX Documents (*.lyx)")),
1272                                      string());
1273
1274                 if (result.first == FileDialog::Later)
1275                         return;
1276
1277                 filename = result.second;
1278
1279                 // check selected filename
1280                 if (filename.empty()) {
1281                         owner->message(_("Canceled."));
1282                         return;
1283                 }
1284         } else
1285                 filename = fname;
1286
1287         // get absolute path of file and add ".lyx" to the filename if
1288         // necessary
1289         string const fullpath = FileSearch(string(), filename, "lyx");
1290         if (!fullpath.empty()) {
1291                 filename = fullpath;
1292         }
1293
1294         string const disp_fn(MakeDisplayPath(filename));
1295
1296         // if the file doesn't exist, let the user create one
1297         FileInfo const f(filename, true);
1298         if (!f.exist()) {
1299                 // the user specifically chose this name. Believe them.
1300                 view()->newFile(filename, "", true);
1301                 return;
1302         }
1303
1304         owner->message(bformat(_("Opening document %1$s..."), disp_fn));
1305
1306         string str2;
1307         if (view()->loadLyXFile(filename)) {
1308                 str2 = bformat(_("Document %1$s opened."), disp_fn);
1309         } else {
1310                 str2 = bformat(_("Could not open document %1$s"), disp_fn);
1311         }
1312         owner->message(str2);
1313 }
1314
1315
1316 void LyXFunc::doImport(string const & argument)
1317 {
1318         string format;
1319         string filename = split(argument, format, ' ');
1320
1321         lyxerr[Debug::INFO] << "LyXFunc::doImport: " << format
1322                             << " file: " << filename << endl;
1323
1324         // need user interaction
1325         if (filename.empty()) {
1326                 string initpath = lyxrc.document_path;
1327
1328                 if (view()->available()) {
1329                         string const trypath = owner->buffer()->filePath();
1330                         // If directory is writeable, use this as default.
1331                         if (IsDirWriteable(trypath))
1332                                 initpath = trypath;
1333                 }
1334
1335                 string const text = bformat(_("Select %1$s file to import"),
1336                         formats.prettyName(format));
1337
1338                 FileDialog fileDlg(text,
1339                         LFUN_IMPORT,
1340                         make_pair(string(_("Documents|#o#O")),
1341                                   string(lyxrc.document_path)),
1342                         make_pair(string(_("Examples|#E#e")),
1343                                   string(AddPath(system_lyxdir(), "examples"))));
1344
1345                 string const filter = formats.prettyName(format)
1346                         + " (*." + formats.extension(format) + ')';
1347
1348                 FileDialog::Result result =
1349                         fileDlg.open(initpath,
1350                                      FileFilterList(filter),
1351                                      string());
1352
1353                 if (result.first == FileDialog::Later)
1354                         return;
1355
1356                 filename = result.second;
1357
1358                 // check selected filename
1359                 if (filename.empty())
1360                         owner->message(_("Canceled."));
1361         }
1362
1363         if (filename.empty())
1364                 return;
1365
1366         // get absolute path of file
1367         filename = MakeAbsPath(filename);
1368
1369         string const lyxfile = ChangeExtension(filename, ".lyx");
1370
1371         // Check if the document already is open
1372         if (lyx_gui::use_gui && bufferlist.exists(lyxfile)) {
1373                 if (!bufferlist.close(bufferlist.getBuffer(lyxfile), true)) {
1374                         owner->message(_("Canceled."));
1375                         return;
1376                 }
1377         }
1378
1379         // if the file exists already, and we didn't do
1380         // -i lyx thefile.lyx, warn
1381         if (FileInfo(lyxfile, true).exist() && filename != lyxfile) {
1382                 string const file = MakeDisplayPath(lyxfile, 30);
1383
1384                 string text = bformat(_("The document %1$s already exists.\n\n"
1385                         "Do you want to over-write that document?"), file);
1386                 int const ret = Alert::prompt(_("Over-write document?"),
1387                         text, 0, 1, _("&Over-write"), _("&Cancel"));
1388
1389                 if (ret == 1) {
1390                         owner->message(_("Canceled."));
1391                         return;
1392                 }
1393         }
1394
1395         Importer::Import(owner, filename, format);
1396 }
1397
1398
1399 void LyXFunc::closeBuffer()
1400 {
1401         if (bufferlist.close(owner->buffer(), true) && !quitting) {
1402                 if (bufferlist.empty()) {
1403                         // need this otherwise SEGV may occur while
1404                         // trying to set variables that don't exist
1405                         // since there's no current buffer
1406                         owner->getDialogs().hideBufferDependent();
1407                 } else {
1408                         view()->setBuffer(bufferlist.first());
1409                 }
1410         }
1411 }
1412
1413
1414 // Each "owner" should have it's own message method. lyxview and
1415 // the minibuffer would use the minibuffer, but lyxserver would
1416 // send an ERROR signal to its client.  Alejandro 970603
1417 // This function is bit problematic when it comes to NLS, to make the
1418 // lyx servers client be language indepenent we must not translate
1419 // strings sent to this func.
1420 void LyXFunc::setErrorMessage(string const & m) const
1421 {
1422         dispatch_buffer = m;
1423         errorstat = true;
1424 }
1425
1426
1427 void LyXFunc::setMessage(string const & m) const
1428 {
1429         dispatch_buffer = m;
1430 }
1431
1432
1433 void LyXFunc::setStatusMessage(string const & m) const
1434 {
1435         status_buffer = m;
1436 }
1437
1438
1439 string const LyXFunc::viewStatusMessage()
1440 {
1441         // When meta-fake key is pressed, show the key sequence so far + "M-".
1442         if (wasMetaKey())
1443                 return keyseq.print() + "M-";
1444
1445         // Else, when a non-complete key sequence is pressed,
1446         // show the available options.
1447         if (keyseq.length() > 0 && !keyseq.deleted())
1448                 return keyseq.printOptions();
1449
1450         if (!view()->available())
1451                 return _("Welcome to LyX!");
1452
1453         return view()->cursor().currentState();
1454 }
1455
1456
1457 BufferView * LyXFunc::view() const
1458 {
1459         BOOST_ASSERT(owner);
1460         return owner->view().get();
1461 }
1462
1463
1464 bool LyXFunc::wasMetaKey() const
1465 {
1466         return (meta_fake_bit != key_modifier::none);
1467 }