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 "LayoutFile.h"
  25 #include "BranchList.h"
  26 #include "buffer_funcs.h"
  27 #include "Buffer.h"
  28 #include "BufferList.h"
  29 #include "BufferParams.h"
  30 #include "BufferView.h"
  31 #include "CmdDef.h"
  32 #include "Color.h"
  33 #include "Converter.h"
  34 #include "Cursor.h"
  35 #include "CutAndPaste.h"
  36 #include "DispatchResult.h"
  37 #include "Encoding.h"
  38 #include "ErrorList.h"
  39 #include "Format.h"
  40 #include "FuncRequest.h"
  41 #include "FuncStatus.h"
  42 #include "InsetIterator.h"
  43 #include "Intl.h"
  44 #include "KeyMap.h"
  45 #include "Language.h"
  46 #include "LaTeXFeatures.h"
  47 #include "Lexer.h"
  48 #include "LyXAction.h"
  49 #include "lyxfind.h"
  50 #include "LyX.h"
  51 #include "LyXRC.h"
  52 #include "LyXVC.h"
  53 #include "Paragraph.h"
  54 #include "ParagraphParameters.h"
  55 #include "ParIterator.h"
  56 #include "Row.h"
  57 #include "Server.h"
  58 #include "Session.h"
  59 #include "SpellChecker.h"
  60
  61 #include "frontends/alert.h"
  62 #include "frontends/Application.h"
  63 #include "frontends/KeySymbol.h"
  64 #include "frontends/LyXView.h"
  65 #include "frontends/Selection.h"
  66
  67 #include "support/debug.h"
  68 #include "support/environment.h"
  69 #include "support/FileName.h"
  70 #include "support/filetools.h"
  71 #include "support/gettext.h"
  72 #include "support/lassert.h"
  73 #include "support/lstrings.h"
  74 #include "support/Path.h"
  75 #include "support/Package.h"
  76 #include "support/Systemcall.h"
  77 #include "support/convert.h"
  78 #include "support/os.h"
  79
  80 #include <sstream>
  81 #include <vector>
  82
  83 using namespace std;
  84 using namespace lyx::support;
  85
  86 namespace lyx {
  87
  88 using frontend::LyXView;
  89
  90 namespace Alert = frontend::Alert;
  91
  92 namespace {
  93
  94
  95 // This function runs "configure" and then rereads lyx.defaults to
  96 // reconfigure the automatic settings.
  97 void reconfigure(LyXView * lv, string const & option)
  98 {
  99         // emit message signal.
 100         if (lv)
 101                 lv->message(_("Running configure..."));
 102
 103         // Run configure in user lyx directory
 104         PathChanger p(package().user_support());
 105         string configure_command = package().configure_command();
 106         configure_command += option;
 107         Systemcall one;
 108         int ret = one.startscript(Systemcall::Wait, configure_command);
 109         p.pop();
 110         // emit message signal.
 111         if (lv)
 112                 lv->message(_("Reloading configuration..."));
 113         lyxrc.read(libFileSearch(string(), "lyxrc.defaults"));
 114         // Re-read packages.lst
 115         LaTeXFeatures::getAvailable();
 116
 117         if (ret)
 118                 Alert::information(_("System reconfiguration failed"),
 119                            _("The system reconfiguration has failed.\n"
 120                                   "Default textclass is used but LyX may "
 121                                   "not be able to work properly.\n"
 122                                   "Please reconfigure again if needed."));
 123         else
 124
 125                 Alert::information(_("System reconfigured"),
 126                            _("The system has been reconfigured.\n"
 127                              "You need to restart LyX to make use of any\n"
 128                              "updated document class specifications."));
 129 }
 130
 131 }
 132
 133
 134 LyXFunc::LyXFunc()
 135         : encoded_last_key(0), meta_fake_bit(NoModifier)
 136 {
 137 }
 138
 139
 140 void LyXFunc::initKeySequences(KeyMap * kb)
 141 {
 142         keyseq = KeySequence(kb, kb);
 143         cancel_meta_seq = KeySequence(kb, kb);
 144 }
 145
 146
 147 void LyXFunc::handleKeyFunc(FuncCode action)
 148 {
 149         char_type c = encoded_last_key;
 150
 151         if (keyseq.length())
 152                 c = 0;
 153         LyXView * lv = theApp()->currentWindow();
 154         LASSERT(lv && lv->currentBufferView(), /**/);
 155         BufferView * bv = lv->currentBufferView();
 156         bv->getIntl().getTransManager().deadkey(
 157                 c, get_accent(action).accent, bv->cursor().innerText(),
 158                 bv->cursor());
 159         // Need to clear, in case the minibuffer calls these
 160         // actions
 161         keyseq.clear();
 162         // copied verbatim from do_accent_char
 163         bv->cursor().resetAnchor();
 164         bv->processUpdateFlags(Update::FitCursor);
 165 }
 166
 167 //FIXME: bookmark handling is a frontend issue. This code should be transferred
 168 // to GuiView and be GuiView and be window dependent.
 169 void LyXFunc::gotoBookmark(unsigned int idx, bool openFile, bool switchToBuffer)
 170 {
 171         LyXView * lv = theApp()->currentWindow();
 172         LASSERT(lv, /**/);
 173         if (!theSession().bookmarks().isValid(idx))
 174                 return;
 175         BookmarksSection::Bookmark const & bm = theSession().bookmarks().bookmark(idx);
 176         LASSERT(!bm.filename.empty(), /**/);
 177         string const file = bm.filename.absFilename();
 178         // if the file is not opened, open it.
 179         if (!theBufferList().exists(bm.filename)) {
 180                 if (openFile)
 181                         dispatch(FuncRequest(LFUN_FILE_OPEN, file));
 182                 else
 183                         return;
 184         }
 185         // open may fail, so we need to test it again
 186         if (!theBufferList().exists(bm.filename))
 187                 return;
 188
 189         // bm can be changed when saving
 190         BookmarksSection::Bookmark tmp = bm;
 191
 192         // Special case idx == 0 used for back-from-back jump navigation
 193         if (idx == 0)
 194                 dispatch(FuncRequest(LFUN_BOOKMARK_SAVE, "0"));
 195
 196         // if the current buffer is not that one, switch to it.
 197         if (!lv->documentBufferView()
 198                 || lv->documentBufferView()->buffer().fileName() != tmp.filename) {
 199                 if (!switchToBuffer)
 200                         return;
 201                 dispatch(FuncRequest(LFUN_BUFFER_SWITCH, file));
 202         }
 203
 204         // moveToPosition try paragraph id first and then paragraph (pit, pos).
 205         if (!lv->documentBufferView()->moveToPosition(
 206                 tmp.bottom_pit, tmp.bottom_pos, tmp.top_id, tmp.top_pos))
 207                 return;
 208
 209         // bm changed
 210         if (idx == 0)
 211                 return;
 212
 213         // Cursor jump succeeded!
 214         Cursor const & cur = lv->documentBufferView()->cursor();
 215         pit_type new_pit = cur.pit();
 216         pos_type new_pos = cur.pos();
 217         int new_id = cur.paragraph().id();
 218
 219         // if bottom_pit, bottom_pos or top_id has been changed, update bookmark
 220         // see http://bugzilla.lyx.org/show_bug.cgi?id=3092
 221         if (bm.bottom_pit != new_pit || bm.bottom_pos != new_pos
 222                 || bm.top_id != new_id) {
 223                 const_cast<BookmarksSection::Bookmark &>(bm).updatePos(
 224                         new_pit, new_pos, new_id);
 225         }
 226 }
 227
 228
 229 void LyXFunc::processKeySym(KeySymbol const & keysym, KeyModifier state)
 230 {
 231         LYXERR(Debug::KEY, "KeySym is " << keysym.getSymbolName());
 232
 233         LyXView * lv = theApp()->currentWindow();
 234
 235         // Do nothing if we have nothing (JMarc)
 236         if (!keysym.isOK()) {
 237                 LYXERR(Debug::KEY, "Empty kbd action (probably composing)");
 238                 lv->restartCursor();
 239                 return;
 240         }
 241
 242         if (keysym.isModifier()) {
 243                 LYXERR(Debug::KEY, "isModifier true");
 244                 if (lv)
 245                         lv->restartCursor();
 246                 return;
 247         }
 248
 249         //Encoding const * encoding = lv->documentBufferView()->cursor().getEncoding();
 250         //encoded_last_key = keysym.getISOEncoded(encoding ? encoding->name() : "");
 251         // FIXME: encoded_last_key shadows the member variable of the same
 252         // name. Is that intended?
 253         char_type encoded_last_key = keysym.getUCSEncoded();
 254
 255         // Do a one-deep top-level lookup for
 256         // cancel and meta-fake keys. RVDK_PATCH_5
 257         cancel_meta_seq.reset();
 258
 259         FuncRequest func = cancel_meta_seq.addkey(keysym, state);
 260         LYXERR(Debug::KEY, "action first set to [" << func.action << ']');
 261
 262         // When not cancel or meta-fake, do the normal lookup.
 263         // Note how the meta_fake Mod1 bit is OR-ed in and reset afterwards.
 264         // Mostly, meta_fake_bit = NoModifier. RVDK_PATCH_5.
 265         if ((func.action != LFUN_CANCEL) && (func.action != LFUN_META_PREFIX)) {
 266                 // remove Caps Lock and Mod2 as a modifiers
 267                 func = keyseq.addkey(keysym, (state | meta_fake_bit));
 268                 LYXERR(Debug::KEY, "action now set to [" << func.action << ']');
 269         }
 270
 271         // Dont remove this unless you know what you are doing.
 272         meta_fake_bit = NoModifier;
 273
 274         // Can this happen now ?
 275         if (func.action == LFUN_NOACTION)
 276                 func = FuncRequest(LFUN_COMMAND_PREFIX);
 277
 278         LYXERR(Debug::KEY, " Key [action=" << func.action << "]["
 279                 << keyseq.print(KeySequence::Portable) << ']');
 280
 281         // already here we know if it any point in going further
 282         // why not return already here if action == -1 and
 283         // num_bytes == 0? (Lgb)
 284
 285         if (keyseq.length() > 1)
 286                 lv->message(keyseq.print(KeySequence::ForGui));
 287
 288
 289         // Maybe user can only reach the key via holding down shift.
 290         // Let's see. But only if shift is the only modifier
 291         if (func.action == LFUN_UNKNOWN_ACTION && state == ShiftModifier) {
 292                 LYXERR(Debug::KEY, "Trying without shift");
 293                 func = keyseq.addkey(keysym, NoModifier);
 294                 LYXERR(Debug::KEY, "Action now " << func.action);
 295         }
 296
 297         if (func.action == LFUN_UNKNOWN_ACTION) {
 298                 // Hmm, we didn't match any of the keysequences. See
 299                 // if it's normal insertable text not already covered
 300                 // by a binding
 301                 if (keysym.isText() && keyseq.length() == 1) {
 302                         LYXERR(Debug::KEY, "isText() is true, inserting.");
 303                         func = FuncRequest(LFUN_SELF_INSERT,
 304                                            FuncRequest::KEYBOARD);
 305                 } else {
 306                         LYXERR(Debug::KEY, "Unknown, !isText() - giving up");
 307                         lv->message(_("Unknown function."));
 308                         lv->restartCursor();
 309                         return;
 310                 }
 311         }
 312
 313         if (func.action == LFUN_SELF_INSERT) {
 314                 if (encoded_last_key != 0) {
 315                         docstring const arg(1, encoded_last_key);
 316                         dispatch(FuncRequest(LFUN_SELF_INSERT, arg,
 317                                              FuncRequest::KEYBOARD));
 318                         LYXERR(Debug::KEY, "SelfInsert arg[`" << to_utf8(arg) << "']");
 319                 }
 320         } else {
 321                 dispatch(func);
 322                 if (!lv)
 323                         return;
 324         }
 325 }
 326
 327
 328 FuncStatus LyXFunc::getStatus(FuncRequest const & cmd) const
 329 {
 330         //lyxerr << "LyXFunc::getStatus: cmd: " << cmd << endl;
 331         FuncStatus flag;
 332
 333         if (cmd.action == LFUN_NOACTION) {
 334                 flag.message(from_utf8(N_("Nothing to do")));
 335                 flag.setEnabled(false);
 336                 return flag;
 337         }
 338
 339         switch (cmd.action) {
 340         case LFUN_UNKNOWN_ACTION:
 341                 flag.unknown(true);
 342                 flag.setEnabled(false);
 343                 break;
 344
 345         default:
 346                 break;
 347         }
 348
 349         if (flag.unknown()) {
 350                 flag.message(from_utf8(N_("Unknown action")));
 351                 return flag;
 352         }
 353
 354         if (!flag.enabled()) {
 355                 if (flag.message().empty())
 356                         flag.message(from_utf8(N_("Command disabled")));
 357                 return flag;
 358         }
 359
 360         // I would really like to avoid having this switch and rather try to
 361         // encode this in the function itself.
 362         // -- And I'd rather let an inset decide which LFUNs it is willing
 363         // to handle (Andre')
 364         bool enable = true;
 365         switch (cmd.action) {
 366
 367         // This could be used for the no-GUI version. The GUI version is handled in
 368         // LyXView::getStatus(). See above.
 369         /*
 370         case LFUN_BUFFER_WRITE:
 371         case LFUN_BUFFER_WRITE_AS: {
 372                 Buffer * b = theBufferList().getBuffer(FileName(cmd.getArg(0)));
 373                 enable = b && (b->isUnnamed() || !b->isClean());
 374                 break;
 375         }
 376         */
 377
 378         case LFUN_BOOKMARK_GOTO: {
 379                 const unsigned int num = convert<unsigned int>(to_utf8(cmd.argument()));
 380                 enable = theSession().bookmarks().isValid(num);
 381                 break;
 382         }
 383
 384         case LFUN_BOOKMARK_CLEAR:
 385                 enable = theSession().bookmarks().hasValid();
 386                 break;
 387
 388         // this one is difficult to get right. As a half-baked
 389         // solution, we consider only the first action of the sequence
 390         case LFUN_COMMAND_SEQUENCE: {
 391                 // argument contains ';'-terminated commands
 392                 string const firstcmd = token(to_utf8(cmd.argument()), ';', 0);
 393                 FuncRequest func(lyxaction.lookupFunc(firstcmd));
 394                 func.origin = cmd.origin;
 395                 flag = getStatus(func);
 396                 break;
 397         }
 398
 399         // we want to check if at least one of these is enabled
 400         case LFUN_COMMAND_ALTERNATIVES: {
 401                 // argument contains ';'-terminated commands
 402                 string arg = to_utf8(cmd.argument());
 403                 while (!arg.empty()) {
 404                         string first;
 405                         arg = split(arg, first, ';');
 406                         FuncRequest func(lyxaction.lookupFunc(first));
 407                         func.origin = cmd.origin;
 408                         flag = getStatus(func);
 409                         // if this one is enabled, the whole thing is
 410                         if (flag.enabled())
 411                                 break;
 412                 }
 413                 break;
 414         }
 415
 416         case LFUN_CALL: {
 417                 FuncRequest func;
 418                 string name = to_utf8(cmd.argument());
 419                 if (theTopLevelCmdDef().lock(name, func)) {
 420                         func.origin = cmd.origin;
 421                         flag = getStatus(func);
 422                         theTopLevelCmdDef().release(name);
 423                 } else {
 424                         // catch recursion or unknown command
 425                         // definition. all operations until the
 426                         // recursion or unknown command definition
 427                         // occurs are performed, so set the state to
 428                         // enabled
 429                         enable = true;
 430                 }
 431                 break;
 432         }
 433
 434         case LFUN_COMMAND_PREFIX:
 435         case LFUN_CANCEL:
 436         case LFUN_META_PREFIX:
 437         case LFUN_RECONFIGURE:
 438         case LFUN_DROP_LAYOUTS_CHOICE:
 439         case LFUN_SERVER_GET_FILENAME:
 440         case LFUN_SERVER_NOTIFY:
 441         case LFUN_CURSOR_FOLLOWS_SCROLLBAR_TOGGLE:
 442         case LFUN_REPEAT:
 443         case LFUN_PREFERENCES_SAVE:
 444         case LFUN_INSET_EDIT:
 445         case LFUN_BUFFER_SAVE_AS_DEFAULT:
 446         case LFUN_LYXRC_APPLY:
 447                 // these are handled in our dispatch()
 448                 break;
 449
 450         default:
 451                 if (!theApp()) {
 452                         enable = false;
 453                         break;
 454                 }
 455                 if (theApp()->getStatus(cmd, flag))
 456                         break;
 457
 458                 // Does the view know something?
 459                 LyXView * lv = theApp()->currentWindow();
 460                 if (!lv) {
 461                         enable = false;
 462                         break;
 463                 }
 464                 if (lv->getStatus(cmd, flag))
 465                         break;
 466
 467                 BufferView * bv = lv->currentBufferView();
 468                 BufferView * doc_bv = lv->documentBufferView();
 469                 // If we do not have a BufferView, then other functions are disabled
 470                 if (!bv) {
 471                         enable = false;
 472                         break;
 473                 }
 474                 // try the BufferView
 475                 bool decided = bv->getStatus(cmd, flag);
 476                 if (!decided)
 477                         // try the Buffer
 478                         decided = bv->buffer().getStatus(cmd, flag);
 479                 if (!decided && doc_bv)
 480                         // try the Document Buffer
 481                         decided = doc_bv->buffer().getStatus(cmd, flag);
 482         }
 483
 484         if (!enable)
 485                 flag.setEnabled(false);
 486
 487         // the default error message if we disable the command
 488         if (!flag.enabled() && flag.message().empty())
 489                 flag.message(from_utf8(N_("Command disabled")));
 490
 491         return flag;
 492 }
 493
 494
 495 namespace {
 496
 497 void actOnUpdatedPrefs(LyXRC const & lyxrc_orig, LyXRC const & lyxrc_new);
 498
 499 } //namespace anon
 500
 501
 502 void LyXFunc::dispatch(FuncRequest const & cmd)
 503 {
 504         string const argument = to_utf8(cmd.argument());
 505         FuncCode const action = cmd.action;
 506
 507         LYXERR(Debug::ACTION, "\nLyXFunc::dispatch: cmd: " << cmd);
 508         //lyxerr << "LyXFunc::dispatch: cmd: " << cmd << endl;
 509
 510         // we have not done anything wrong yet.
 511         errorstat = false;
 512         dispatch_buffer.erase();
 513
 514         // redraw the screen at the end (first of the two drawing steps).
 515         //This is done unless explicitely requested otherwise
 516         Update::flags updateFlags = Update::FitCursor;
 517
 518         LyXView * lv = theApp()->currentWindow();
 519
 520         FuncStatus const flag = getStatus(cmd);
 521         if (!flag.enabled()) {
 522                 // We cannot use this function here
 523                 LYXERR(Debug::ACTION, "LyXFunc::dispatch: "
 524                        << lyxaction.getActionName(action)
 525                        << " [" << action << "] is disabled at this location");
 526                 setErrorMessage(flag.message());
 527                 if (lv)
 528                         lv->restartCursor();
 529         } else {
 530                 Buffer * buffer = 0;
 531                 if (lv && lv->currentBufferView())
 532                         buffer = &lv->currentBufferView()->buffer();
 533                 switch (action) {
 534
 535                 case LFUN_COMMAND_PREFIX:
 536                         dispatch(FuncRequest(LFUN_MESSAGE, keyseq.printOptions(true)));
 537                         break;
 538
 539                 case LFUN_CANCEL:
 540                         keyseq.reset();
 541                         meta_fake_bit = NoModifier;
 542                         if (buffer)
 543                                 // cancel any selection
 544                                 dispatch(FuncRequest(LFUN_MARK_OFF));
 545                         setMessage(from_ascii(N_("Cancel")));
 546                         break;
 547
 548                 case LFUN_META_PREFIX:
 549                         meta_fake_bit = AltModifier;
 550                         setMessage(keyseq.print(KeySequence::ForGui));
 551                         break;
 552
 553                 // --- Menus -----------------------------------------------
 554                 case LFUN_RECONFIGURE:
 555                         // argument is any additional parameter to the configure.py command
 556                         reconfigure(lv, argument);
 557                         break;
 558
 559                 // --- lyxserver commands ----------------------------
 560                 case LFUN_SERVER_GET_FILENAME:
 561                         LASSERT(lv && buffer, /**/);
 562                         setMessage(from_utf8(buffer->absFileName()));
 563                         LYXERR(Debug::INFO, "FNAME["
 564                                 << buffer->absFileName() << ']');
 565                         break;
 566
 567                 case LFUN_SERVER_NOTIFY:
 568                         dispatch_buffer = keyseq.print(KeySequence::Portable);
 569                         theServer().notifyClient(to_utf8(dispatch_buffer));
 570                         break;
 571
 572                 case LFUN_CURSOR_FOLLOWS_SCROLLBAR_TOGGLE:
 573                         lyxrc.cursor_follows_scrollbar = !lyxrc.cursor_follows_scrollbar;
 574                         break;
 575
 576                 case LFUN_REPEAT: {
 577                         // repeat command
 578                         string countstr;
 579                         string rest = split(argument, countstr, ' ');
 580                         istringstream is(countstr);
 581                         int count = 0;
 582                         is >> count;
 583                         //lyxerr << "repeat: count: " << count << " cmd: " << rest << endl;
 584                         for (int i = 0; i < count; ++i)
 585                                 dispatch(lyxaction.lookupFunc(rest));
 586                         break;
 587                 }
 588
 589                 case LFUN_COMMAND_SEQUENCE: {
 590                         // argument contains ';'-terminated commands
 591                         string arg = argument;
 592                         if (theBufferList().isLoaded(buffer))
 593                                 buffer->undo().beginUndoGroup();
 594                         while (!arg.empty()) {
 595                                 string first;
 596                                 arg = split(arg, first, ';');
 597                                 FuncRequest func(lyxaction.lookupFunc(first));
 598                                 func.origin = cmd.origin;
 599                                 dispatch(func);
 600                         }
 601                         if (theBufferList().isLoaded(buffer))
 602                                 buffer->undo().endUndoGroup();
 603                         break;
 604                 }
 605
 606                 case LFUN_COMMAND_ALTERNATIVES: {
 607                         // argument contains ';'-terminated commands
 608                         string arg = argument;
 609                         while (!arg.empty()) {
 610                                 string first;
 611                                 arg = split(arg, first, ';');
 612                                 FuncRequest func(lyxaction.lookupFunc(first));
 613                                 func.origin = cmd.origin;
 614                                 FuncStatus stat = getStatus(func);
 615                                 if (stat.enabled()) {
 616                                         dispatch(func);
 617                                         break;
 618                                 }
 619                         }
 620                         break;
 621                 }
 622
 623                 case LFUN_CALL: {
 624                         FuncRequest func;
 625                         if (theTopLevelCmdDef().lock(argument, func)) {
 626                                 func.origin = cmd.origin;
 627                                 dispatch(func);
 628                                 theTopLevelCmdDef().release(argument);
 629                         } else {
 630                                 if (func.action == LFUN_UNKNOWN_ACTION) {
 631                                         // unknown command definition
 632                                         lyxerr << "Warning: unknown command definition `"
 633                                                    << argument << "'"
 634                                                    << endl;
 635                                 } else {
 636                                         // recursion detected
 637                                         lyxerr << "Warning: Recursion in the command definition `"
 638                                                    << argument << "' detected"
 639                                                    << endl;
 640                                 }
 641                         }
 642                         break;
 643                 }
 644
 645                 case LFUN_PREFERENCES_SAVE: {
 646                         lyxrc.write(makeAbsPath("preferences",
 647                                                 package().user_support().absFilename()),
 648                                     false);
 649                         break;
 650                 }
 651
 652                 case LFUN_BUFFER_SAVE_AS_DEFAULT: {
 653                         string const fname =
 654                                 addName(addPath(package().user_support().absFilename(), "templates/"),
 655                                         "defaults.lyx");
 656                         Buffer defaults(fname);
 657
 658                         istringstream ss(argument);
 659                         Lexer lex;
 660                         lex.setStream(ss);
 661                         int const unknown_tokens = defaults.readHeader(lex);
 662
 663                         if (unknown_tokens != 0) {
 664                                 lyxerr << "Warning in LFUN_BUFFER_SAVE_AS_DEFAULT!\n"
 665                                        << unknown_tokens << " unknown token"
 666                                        << (unknown_tokens == 1 ? "" : "s")
 667                                        << endl;
 668                         }
 669
 670                         if (defaults.writeFile(FileName(defaults.absFileName())))
 671                                 setMessage(bformat(_("Document defaults saved in %1$s"),
 672                                                    makeDisplayPath(fname)));
 673                         else
 674                                 setErrorMessage(from_ascii(N_("Unable to save document defaults")));
 675                         break;
 676                 }
 677
 678                 case LFUN_LYXRC_APPLY: {
 679                         // reset active key sequences, since the bindings
 680                         // are updated (bug 6064)
 681                         keyseq.reset();
 682                         LyXRC const lyxrc_orig = lyxrc;
 683
 684                         istringstream ss(argument);
 685                         bool const success = lyxrc.read(ss) == 0;
 686
 687                         if (!success) {
 688                                 lyxerr << "Warning in LFUN_LYXRC_APPLY!\n"
 689                                        << "Unable to read lyxrc data"
 690                                        << endl;
 691                                 break;
 692                         }
 693
 694                         actOnUpdatedPrefs(lyxrc_orig, lyxrc);
 695
 696                         setSpellChecker();
 697
 698                         theApp()->resetGui();
 699
 700                         /// We force the redraw in any case because there might be
 701                         /// some screen font changes.
 702                         /// FIXME: only the current view will be updated. the Gui
 703                         /// class is able to furnish the list of views.
 704                         updateFlags = Update::Force;
 705                         break;
 706                 }
 707
 708                 case LFUN_BOOKMARK_GOTO:
 709                         // go to bookmark, open unopened file and switch to buffer if necessary
 710                         gotoBookmark(convert<unsigned int>(to_utf8(cmd.argument())), true, true);
 711                         updateFlags = Update::FitCursor;
 712                         break;
 713
 714                 case LFUN_BOOKMARK_CLEAR:
 715                         theSession().bookmarks().clear();
 716                         break;
 717
 718                 default:
 719                         LASSERT(theApp(), /**/);
 720                         // Let the frontend dispatch its own actions.
 721                         if (theApp()->dispatch(cmd))
 722                                 // Nothing more to do.
 723                                 return;
 724
 725                         // Everything below is only for active window
 726                         if (lv == 0)
 727                                 break;
 728
 729                         // Start an undo group. This may be needed for
 730                         // some stuff like inset-apply on labels.
 731                         if (theBufferList().isLoaded(buffer))
 732                                 buffer->undo().beginUndoGroup();
 733
 734                         // Let the current LyXView dispatch its own actions.
 735                         if (lv->dispatch(cmd)) {
 736                                 BufferView * bv = lv->currentBufferView();
 737                                 if (bv) {
 738                                         buffer = &(bv->buffer());
 739                                         updateFlags = bv->cursor().result().update();
 740                                         if (theBufferList().isLoaded(buffer))
 741                                                 buffer->undo().endUndoGroup();
 742                                 }
 743                                 break;
 744                         }
 745
 746                         BufferView * bv = lv->currentBufferView();
 747                         LASSERT(bv, /**/);
 748
 749                         // Let the current BufferView dispatch its own actions.
 750                         if (bv->dispatch(cmd)) {
 751                                 // The BufferView took care of its own updates if needed.
 752                                 buffer = &(bv->buffer());
 753                                 updateFlags = Update::None;
 754                                 if (theBufferList().isLoaded(buffer))
 755                                         buffer->undo().endUndoGroup();
 756                                 break;
 757                         }
 758
 759                         BufferView * doc_bv = lv->documentBufferView();
 760                         // Try with the document BufferView dispatch if any.
 761                         if (doc_bv && doc_bv->dispatch(cmd)) {
 762                                 // The BufferView took care of its own updates if needed.
 763                                 buffer = &(doc_bv->buffer());
 764                                 updateFlags = Update::None;
 765                                 if (theBufferList().isLoaded(buffer))
 766                                         buffer->undo().endUndoGroup();
 767                                 break;
 768                         }
 769
 770                         // OK, so try the current Buffer itself...
 771                         DispatchResult dr;
 772                         bv->buffer().dispatch(cmd, dr);
 773                         if (dr.dispatched()) {
 774                                 updateFlags = dr.update();
 775                                 break;
 776                         }
 777                         // and with the document Buffer.
 778                         if (doc_bv) {
 779                                 doc_bv->buffer().dispatch(cmd, dr);
 780                                 if (dr.dispatched()) {
 781                                         updateFlags = dr.update();
 782                                         break;
 783                                 }
 784                         }
 785
 786                         // Is this a function that acts on inset at point?
 787                         Inset * inset = bv->cursor().nextInset();
 788                         if (lyxaction.funcHasFlag(action, LyXAction::AtPoint)
 789                             && inset) {
 790                                 bv->cursor().result().dispatched(true);
 791                                 bv->cursor().result().update(Update::FitCursor | Update::Force);
 792                                 FuncRequest tmpcmd = cmd;
 793                                 inset->dispatch(bv->cursor(), tmpcmd);
 794                                 if (bv->cursor().result().dispatched()) {
 795                                         updateFlags = bv->cursor().result().update();
 796                                         break;
 797                                 }
 798                         }
 799
 800                         // Let the current Cursor dispatch its own actions.
 801                         Cursor old = bv->cursor();
 802                         bv->cursor().getPos(cursorPosBeforeDispatchX_,
 803                                                 cursorPosBeforeDispatchY_);
 804                         bv->cursor().dispatch(cmd);
 805
 806                         // notify insets we just left
 807                         if (bv->cursor() != old) {
 808                                 old.fixIfBroken();
 809                                 bool badcursor = notifyCursorLeavesOrEnters(old, bv->cursor());
 810                                 if (badcursor)
 811                                         bv->cursor().fixIfBroken();
 812                         }
 813
 814                         if (theBufferList().isLoaded(buffer))
 815                                 buffer->undo().endUndoGroup();
 816
 817                         // update completion. We do it here and not in
 818                         // processKeySym to avoid another redraw just for a
 819                         // changed inline completion
 820                         if (cmd.origin == FuncRequest::KEYBOARD) {
 821                                 if (cmd.action == LFUN_SELF_INSERT
 822                                     || (cmd.action == LFUN_ERT_INSERT && bv->cursor().inMathed()))
 823                                         lv->updateCompletion(bv->cursor(), true, true);
 824                                 else if (cmd.action == LFUN_CHAR_DELETE_BACKWARD)
 825                                         lv->updateCompletion(bv->cursor(), false, true);
 826                                 else
 827                                         lv->updateCompletion(bv->cursor(), false, false);
 828                         }
 829
 830                         updateFlags = bv->cursor().result().update();
 831                 }
 832
 833                 // if we executed a mutating lfun, mark the buffer as dirty
 834                 if (theBufferList().isLoaded(buffer) && flag.enabled()
 835                     && !lyxaction.funcHasFlag(action, LyXAction::NoBuffer)
 836                     && !lyxaction.funcHasFlag(action, LyXAction::ReadOnly))
 837                         buffer->markDirty();
 838
 839                 if (lv && lv->currentBufferView()) {
 840                         // BufferView::update() updates the ViewMetricsInfo and
 841                         // also initializes the position cache for all insets in
 842                         // (at least partially) visible top-level paragraphs.
 843                         // We will redraw the screen only if needed.
 844                         lv->currentBufferView()->processUpdateFlags(updateFlags);
 845
 846                         // Do we have a selection?
 847                         theSelection().haveSelection(
 848                                 lv->currentBufferView()->cursor().selection());
 849
 850                         // update gui
 851                         lv->restartCursor();
 852                 }
 853         }
 854         if (lv) {
 855                 // Some messages may already be translated, so we cannot use _()
 856                 sendDispatchMessage(translateIfPossible(getMessage()), cmd);
 857         }
 858 }
 859
 860
 861 void LyXFunc::sendDispatchMessage(docstring const & msg, FuncRequest const & cmd)
 862 {
 863         const bool verbose = (cmd.origin == FuncRequest::MENU
 864                               || cmd.origin == FuncRequest::TOOLBAR
 865                               || cmd.origin == FuncRequest::COMMANDBUFFER);
 866
 867         LyXView * lv = theApp()->currentWindow();
 868         if (cmd.action == LFUN_SELF_INSERT || !verbose) {
 869                 LYXERR(Debug::ACTION, "dispatch msg is " << to_utf8(msg));
 870                 if (!msg.empty())
 871                         lv->message(msg);
 872                 return;
 873         }
 874
 875         docstring dispatch_msg = msg;
 876         if (!dispatch_msg.empty())
 877                 dispatch_msg += ' ';
 878
 879         docstring comname = from_utf8(lyxaction.getActionName(cmd.action));
 880
 881         bool argsadded = false;
 882
 883         if (!cmd.argument().empty()) {
 884                 if (cmd.action != LFUN_UNKNOWN_ACTION) {
 885                         comname += ' ' + cmd.argument();
 886                         argsadded = true;
 887                 }
 888         }
 889
 890         docstring const shortcuts = theTopLevelKeymap().printBindings(cmd, KeySequence::ForGui);
 891
 892         if (!shortcuts.empty())
 893                 comname += ": " + shortcuts;
 894         else if (!argsadded && !cmd.argument().empty())
 895                 comname += ' ' + cmd.argument();
 896
 897         if (!comname.empty()) {
 898                 comname = rtrim(comname);
 899                 dispatch_msg += '(' + rtrim(comname) + ')';
 900         }
 901
 902         LYXERR(Debug::ACTION, "verbose dispatch msg " << to_utf8(dispatch_msg));
 903         if (!dispatch_msg.empty())
 904                 lv->message(dispatch_msg);
 905 }
 906
 907
 908 // Each LyXView should have it's own message method. lyxview and
 909 // the minibuffer would use the minibuffer, but lyxserver would
 910 // send an ERROR signal to its client.  Alejandro 970603
 911 // This function is bit problematic when it comes to NLS, to make the
 912 // lyx servers client be language indepenent we must not translate
 913 // strings sent to this func.
 914 void LyXFunc::setErrorMessage(docstring const & m) const
 915 {
 916         dispatch_buffer = m;
 917         errorstat = true;
 918 }
 919
 920
 921 void LyXFunc::setMessage(docstring const & m) const
 922 {
 923         dispatch_buffer = m;
 924 }
 925
 926
 927 docstring LyXFunc::viewStatusMessage()
 928 {
 929         // When meta-fake key is pressed, show the key sequence so far + "M-".
 930         if (wasMetaKey())
 931                 return keyseq.print(KeySequence::ForGui) + "M-";
 932
 933         // Else, when a non-complete key sequence is pressed,
 934         // show the available options.
 935         if (keyseq.length() > 0 && !keyseq.deleted())
 936                 return keyseq.printOptions(true);
 937
 938         LyXView * lv = theApp()->currentWindow();
 939         LASSERT(lv, /**/);
 940         if (!lv->currentBufferView())
 941                 return _("Welcome to LyX!");
 942
 943         return lv->currentBufferView()->cursor().currentState();
 944 }
 945
 946
 947 bool LyXFunc::wasMetaKey() const
 948 {
 949         return (meta_fake_bit != NoModifier);
 950 }
 951
 952
 953 namespace {
 954
 955 void actOnUpdatedPrefs(LyXRC const & lyxrc_orig, LyXRC const & lyxrc_new)
 956 {
 957         // Why the switch you might ask. It is a trick to ensure that all
 958         // the elements in the LyXRCTags enum is handled. As you can see
 959         // there are no breaks at all. So it is just a huge fall-through.
 960         // The nice thing is that we will get a warning from the compiler
 961         // if we forget an element.
 962         LyXRC::LyXRCTags tag = LyXRC::RC_LAST;
 963         switch (tag) {
 964         case LyXRC::RC_ACCEPT_COMPOUND:
 965         case LyXRC::RC_ALT_LANG:
 966         case LyXRC::RC_PLAINTEXT_LINELEN:
 967         case LyXRC::RC_PLAINTEXT_ROFF_COMMAND:
 968         case LyXRC::RC_AUTOCORRECTION_MATH:
 969         case LyXRC::RC_AUTOREGIONDELETE:
 970         case LyXRC::RC_AUTORESET_OPTIONS:
 971         case LyXRC::RC_AUTOSAVE:
 972         case LyXRC::RC_AUTO_NUMBER:
 973         case LyXRC::RC_BACKUPDIR_PATH:
 974         case LyXRC::RC_BIBTEX_ALTERNATIVES:
 975         case LyXRC::RC_BIBTEX_COMMAND:
 976         case LyXRC::RC_BINDFILE:
 977         case LyXRC::RC_CHECKLASTFILES:
 978         case LyXRC::RC_COMPLETION_CURSOR_TEXT:
 979         case LyXRC::RC_COMPLETION_INLINE_DELAY:
 980         case LyXRC::RC_COMPLETION_INLINE_DOTS:
 981         case LyXRC::RC_COMPLETION_INLINE_MATH:
 982         case LyXRC::RC_COMPLETION_INLINE_TEXT:
 983         case LyXRC::RC_COMPLETION_POPUP_AFTER_COMPLETE:
 984         case LyXRC::RC_COMPLETION_POPUP_DELAY:
 985         case LyXRC::RC_COMPLETION_POPUP_MATH:
 986         case LyXRC::RC_COMPLETION_POPUP_TEXT:
 987         case LyXRC::RC_USELASTFILEPOS:
 988         case LyXRC::RC_LOADSESSION:
 989         case LyXRC::RC_CHKTEX_COMMAND:
 990         case LyXRC::RC_CONVERTER:
 991         case LyXRC::RC_CONVERTER_CACHE_MAXAGE:
 992         case LyXRC::RC_COPIER:
 993         case LyXRC::RC_CURSOR_FOLLOWS_SCROLLBAR:
 994         case LyXRC::RC_SCROLL_BELOW_DOCUMENT:
 995         case LyXRC::RC_DATE_INSERT_FORMAT:
 996         case LyXRC::RC_DEFAULT_LANGUAGE:
 997         case LyXRC::RC_GUI_LANGUAGE:
 998         case LyXRC::RC_DEFAULT_PAPERSIZE:
 999         case LyXRC::RC_DEFAULT_VIEW_FORMAT:
1000         case LyXRC::RC_DEFFILE:
1001         case LyXRC::RC_DIALOGS_ICONIFY_WITH_MAIN:
1002         case LyXRC::RC_DISPLAY_GRAPHICS:
1003         case LyXRC::RC_DOCUMENTPATH:
1004                 if (lyxrc_orig.document_path != lyxrc_new.document_path) {
1005                         FileName path(lyxrc_new.document_path);
1006                         if (path.exists() && path.isDirectory())
1007                                 package().document_dir() = FileName(lyxrc.document_path);
1008                 }
1009         case LyXRC::RC_EDITOR_ALTERNATIVES:
1010         case LyXRC::RC_ESC_CHARS:
1011         case LyXRC::RC_EXAMPLEPATH:
1012         case LyXRC::RC_FONT_ENCODING:
1013         case LyXRC::RC_FORMAT:
1014         case LyXRC::RC_GROUP_LAYOUTS:
1015         case LyXRC::RC_HUNSPELLDIR_PATH:
1016         case LyXRC::RC_INDEX_ALTERNATIVES:
1017         case LyXRC::RC_INDEX_COMMAND:
1018         case LyXRC::RC_JBIBTEX_COMMAND:
1019         case LyXRC::RC_JINDEX_COMMAND:
1020         case LyXRC::RC_NOMENCL_COMMAND:
1021         case LyXRC::RC_INPUT:
1022         case LyXRC::RC_KBMAP:
1023         case LyXRC::RC_KBMAP_PRIMARY:
1024         case LyXRC::RC_KBMAP_SECONDARY:
1025         case LyXRC::RC_LABEL_INIT_LENGTH:
1026         case LyXRC::RC_LANGUAGE_AUTO_BEGIN:
1027         case LyXRC::RC_LANGUAGE_AUTO_END:
1028         case LyXRC::RC_LANGUAGE_COMMAND_BEGIN:
1029         case LyXRC::RC_LANGUAGE_COMMAND_END:
1030         case LyXRC::RC_LANGUAGE_COMMAND_LOCAL:
1031         case LyXRC::RC_LANGUAGE_GLOBAL_OPTIONS:
1032         case LyXRC::RC_LANGUAGE_PACKAGE:
1033         case LyXRC::RC_LANGUAGE_USE_BABEL:
1034         case LyXRC::RC_MAC_LIKE_WORD_MOVEMENT:
1035         case LyXRC::RC_MACRO_EDIT_STYLE:
1036         case LyXRC::RC_MAKE_BACKUP:
1037         case LyXRC::RC_MARK_FOREIGN_LANGUAGE:
1038         case LyXRC::RC_MOUSE_WHEEL_SPEED:
1039         case LyXRC::RC_NUMLASTFILES:
1040         case LyXRC::RC_PARAGRAPH_MARKERS:
1041         case LyXRC::RC_PATH_PREFIX:
1042                 if (lyxrc_orig.path_prefix != lyxrc_new.path_prefix) {
1043                         prependEnvPath("PATH", lyxrc.path_prefix);
1044                 }
1045         case LyXRC::RC_PERS_DICT:
1046         case LyXRC::RC_PREVIEW:
1047         case LyXRC::RC_PREVIEW_HASHED_LABELS:
1048         case LyXRC::RC_PREVIEW_SCALE_FACTOR:
1049         case LyXRC::RC_PRINTCOLLCOPIESFLAG:
1050         case LyXRC::RC_PRINTCOPIESFLAG:
1051         case LyXRC::RC_PRINTER:
1052         case LyXRC::RC_PRINTEVENPAGEFLAG:
1053         case LyXRC::RC_PRINTEXSTRAOPTIONS:
1054         case LyXRC::RC_PRINTFILEEXTENSION:
1055         case LyXRC::RC_PRINTLANDSCAPEFLAG:
1056         case LyXRC::RC_PRINTODDPAGEFLAG:
1057         case LyXRC::RC_PRINTPAGERANGEFLAG:
1058         case LyXRC::RC_PRINTPAPERDIMENSIONFLAG:
1059         case LyXRC::RC_PRINTPAPERFLAG:
1060         case LyXRC::RC_PRINTREVERSEFLAG:
1061         case LyXRC::RC_PRINTSPOOL_COMMAND:
1062         case LyXRC::RC_PRINTSPOOL_PRINTERPREFIX:
1063         case LyXRC::RC_PRINTTOFILE:
1064         case LyXRC::RC_PRINTTOPRINTER:
1065         case LyXRC::RC_PRINT_ADAPTOUTPUT:
1066         case LyXRC::RC_PRINT_COMMAND:
1067         case LyXRC::RC_RTL_SUPPORT:
1068         case LyXRC::RC_SCREEN_DPI:
1069         case LyXRC::RC_SCREEN_FONT_ROMAN:
1070         case LyXRC::RC_SCREEN_FONT_ROMAN_FOUNDRY:
1071         case LyXRC::RC_SCREEN_FONT_SANS:
1072         case LyXRC::RC_SCREEN_FONT_SANS_FOUNDRY:
1073         case LyXRC::RC_SCREEN_FONT_SCALABLE:
1074         case LyXRC::RC_SCREEN_FONT_SIZES:
1075         case LyXRC::RC_SCREEN_FONT_TYPEWRITER:
1076         case LyXRC::RC_SCREEN_FONT_TYPEWRITER_FOUNDRY:
1077         case LyXRC::RC_GEOMETRY_SESSION:
1078         case LyXRC::RC_SCREEN_ZOOM:
1079         case LyXRC::RC_SERVERPIPE:
1080         case LyXRC::RC_SET_COLOR:
1081         case LyXRC::RC_SHOW_BANNER:
1082         case LyXRC::RC_OPEN_BUFFERS_IN_TABS:
1083         case LyXRC::RC_SPELL_COMMAND:
1084         case LyXRC::RC_SPELLCHECKER:
1085         case LyXRC::RC_SPELLCHECK_CONTINUOUSLY:
1086         case LyXRC::RC_SPLITINDEX_COMMAND:
1087         case LyXRC::RC_TEMPDIRPATH:
1088         case LyXRC::RC_TEMPLATEPATH:
1089         case LyXRC::RC_TEX_ALLOWS_SPACES:
1090         case LyXRC::RC_TEX_EXPECTS_WINDOWS_PATHS:
1091                 if (lyxrc_orig.windows_style_tex_paths != lyxrc_new.windows_style_tex_paths) {
1092                         os::windows_style_tex_paths(lyxrc_new.windows_style_tex_paths);
1093                 }
1094         case LyXRC::RC_THESAURUSDIRPATH:
1095         case LyXRC::RC_UIFILE:
1096         case LyXRC::RC_USER_EMAIL:
1097         case LyXRC::RC_USER_NAME:
1098         case LyXRC::RC_USETEMPDIR:
1099         case LyXRC::RC_USE_ALT_LANG:
1100         case LyXRC::RC_USE_CONVERTER_CACHE:
1101         case LyXRC::RC_USE_ESC_CHARS:
1102         case LyXRC::RC_USE_INP_ENC:
1103         case LyXRC::RC_USE_PERS_DICT:
1104         case LyXRC::RC_USE_TOOLTIP:
1105         case LyXRC::RC_USE_PIXMAP_CACHE:
1106         case LyXRC::RC_USE_SPELL_LIB:
1107         case LyXRC::RC_VIEWDVI_PAPEROPTION:
1108         case LyXRC::RC_SORT_LAYOUTS:
1109         case LyXRC::RC_FULL_SCREEN_LIMIT:
1110         case LyXRC::RC_FULL_SCREEN_SCROLLBAR:
1111         case LyXRC::RC_FULL_SCREEN_MENUBAR:
1112         case LyXRC::RC_FULL_SCREEN_TABBAR:
1113         case LyXRC::RC_FULL_SCREEN_TOOLBARS:
1114         case LyXRC::RC_FULL_SCREEN_WIDTH:
1115         case LyXRC::RC_VISUAL_CURSOR:
1116         case LyXRC::RC_VIEWER:
1117         case LyXRC::RC_VIEWER_ALTERNATIVES:
1118         case LyXRC::RC_LAST:
1119                 break;
1120         }
1121 }
1122
1123 } // namespace anon
1124 } // namespace lyx