src/Text3.cpp

   1 /**
   2  * \file Text3.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Asger Alstrup
   7  * \author Lars Gullik Bjønnes
   8  * \author Alfredo Braunstein
   9  * \author Angus Leeming
  10  * \author John Levon
  11  * \author André Pönitz
  12  *
  13  * Full author contact details are available in file CREDITS.
  14  */
  15
  16 #include <config.h>
  17
  18 #include "Text.h"
  19
  20 #include "BranchList.h"
  21 #include "FloatList.h"
  22 #include "FuncStatus.h"
  23 #include "Buffer.h"
  24 #include "buffer_funcs.h"
  25 #include "BufferParams.h"
  26 #include "BufferView.h"
  27 #include "Changes.h"
  28 #include "Cursor.h"
  29 #include "CutAndPaste.h"
  30 #include "DispatchResult.h"
  31 #include "ErrorList.h"
  32 #include "factory.h"
  33 #include "FuncRequest.h"
  34 #include "InsetList.h"
  35 #include "Intl.h"
  36 #include "Language.h"
  37 #include "Layout.h"
  38 #include "LyXAction.h"
  39 #include "LyX.h"
  40 #include "Lexer.h"
  41 #include "LyXRC.h"
  42 #include "Paragraph.h"
  43 #include "ParagraphParameters.h"
  44 #include "SpellChecker.h"
  45 #include "TextClass.h"
  46 #include "TextMetrics.h"
  47 #include "Thesaurus.h"
  48 #include "WordLangTuple.h"
  49
  50 #include "frontends/alert.h"
  51 #include "frontends/Application.h"
  52 #include "frontends/Clipboard.h"
  53 #include "frontends/Selection.h"
  54
  55 #include "insets/InsetArgument.h"
  56 #include "insets/InsetCollapsable.h"
  57 #include "insets/InsetCommand.h"
  58 #include "insets/InsetExternal.h"
  59 #include "insets/InsetFloat.h"
  60 #include "insets/InsetFloatList.h"
  61 #include "insets/InsetGraphics.h"
  62 #include "insets/InsetGraphicsParams.h"
  63 #include "insets/InsetIPAMacro.h"
  64 #include "insets/InsetNewline.h"
  65 #include "insets/InsetQuotes.h"
  66 #include "insets/InsetSpecialChar.h"
  67 #include "insets/InsetText.h"
  68 #include "insets/InsetWrap.h"
  69
  70 #include "support/convert.h"
  71 #include "support/debug.h"
  72 #include "support/gettext.h"
  73 #include "support/lassert.h"
  74 #include "support/lstrings.h"
  75 #include "support/lyxalgo.h"
  76 #include "support/lyxtime.h"
  77 #include "support/os.h"
  78 #include "support/regex.h"
  79
  80 #include "mathed/InsetMathHull.h"
  81 #include "mathed/InsetMathMacroTemplate.h"
  82
  83 #include <clocale>
  84 #include <sstream>
  85
  86 using namespace std;
  87 using namespace lyx::support;
  88
  89 namespace lyx {
  90
  91 using cap::copySelection;
  92 using cap::cutSelection;
  93 using cap::cutSelectionToTemp;
  94 using cap::pasteFromStack;
  95 using cap::pasteFromTemp;
  96 using cap::pasteClipboardText;
  97 using cap::pasteClipboardGraphics;
  98 using cap::replaceSelection;
  99 using cap::grabAndEraseSelection;
 100 using cap::selClearOrDel;
 101 using cap::pasteSimpleText;
 102 using frontend::Clipboard;
 103
 104 // globals...
 105 static Font freefont(ignore_font, ignore_language);
 106 static bool toggleall = false;
 107
 108 static void toggleAndShow(Cursor & cur, Text * text,
 109         Font const & font, bool toggleall = true)
 110 {
 111         text->toggleFree(cur, font, toggleall);
 112
 113         if (font.language() != ignore_language ||
 114             font.fontInfo().number() != FONT_IGNORE) {
 115                 TextMetrics const & tm = cur.bv().textMetrics(text);
 116                 if (cur.boundary() != tm.isRTLBoundary(cur.pit(), cur.pos(),
 117                                                        cur.real_current_font))
 118                         text->setCursor(cur, cur.pit(), cur.pos(),
 119                                         false, !cur.boundary());
 120         }
 121 }
 122
 123
 124 static void moveCursor(Cursor & cur, bool selecting)
 125 {
 126         if (selecting || cur.mark())
 127                 cur.setSelection();
 128 }
 129
 130
 131 static void finishChange(Cursor & cur, bool selecting)
 132 {
 133         cur.finishUndo();
 134         moveCursor(cur, selecting);
 135 }
 136
 137
 138 static void mathDispatch(Cursor & cur, FuncRequest const & cmd)
 139 {
 140         cur.recordUndo();
 141         docstring sel = cur.selectionAsString(false);
 142
 143         // It may happen that sel is empty but there is a selection
 144         replaceSelection(cur);
 145
 146         // Is this a valid formula?
 147         bool valid = true;
 148
 149         if (sel.empty()) {
 150 #ifdef ENABLE_ASSERTIONS
 151                 const int old_pos = cur.pos();
 152 #endif
 153                 cur.insert(new InsetMathHull(cur.buffer(), hullSimple));
 154 #ifdef ENABLE_ASSERTIONS
 155                 LATTEST(old_pos == cur.pos());
 156 #endif
 157                 cur.nextInset()->edit(cur, true);
 158                 if (cmd.action() != LFUN_MATH_MODE)
 159                         // LFUN_MATH_MODE has a different meaning in math mode
 160                         cur.dispatch(cmd);
 161         } else {
 162                 InsetMathHull * formula = new InsetMathHull(cur.buffer());
 163                 string const selstr = to_utf8(sel);
 164                 istringstream is(selstr);
 165                 Lexer lex;
 166                 lex.setStream(is);
 167                 if (!formula->readQuiet(lex)) {
 168                         // No valid formula, let's try with delims
 169                         is.str("$" + selstr + "$");
 170                         lex.setStream(is);
 171                         if (!formula->readQuiet(lex)) {
 172                                 // Still not valid, leave it as is
 173                                 valid = false;
 174                                 delete formula;
 175                                 cur.insert(sel);
 176                         }
 177                 }
 178                 if (valid) {
 179                         cur.insert(formula);
 180                         cur.nextInset()->edit(cur, true);
 181                         LASSERT(cur.inMathed(), return);
 182                         cur.pos() = 0;
 183                         cur.resetAnchor();
 184                         cur.selection(true);
 185                         cur.pos() = cur.lastpos();
 186                         if (cmd.action() != LFUN_MATH_MODE)
 187                                 // LFUN_MATH_MODE has a different meaning in math mode
 188                                 cur.dispatch(cmd);
 189                         cur.clearSelection();
 190                         cur.pos() = cur.lastpos();
 191                 }
 192         }
 193         if (valid)
 194                 cur.message(from_utf8(N_("Math editor mode")));
 195         else
 196                 cur.message(from_utf8(N_("No valid math formula")));
 197 }
 198
 199
 200 void regexpDispatch(Cursor & cur, FuncRequest const & cmd)
 201 {
 202         LASSERT(cmd.action() == LFUN_REGEXP_MODE, return);
 203         if (cur.inRegexped()) {
 204                 cur.message(_("Already in regular expression mode"));
 205                 return;
 206         }
 207         cur.recordUndo();
 208         docstring sel = cur.selectionAsString(false);
 209
 210         // It may happen that sel is empty but there is a selection
 211         replaceSelection(cur);
 212
 213         cur.insert(new InsetMathHull(cur.buffer(), hullRegexp));
 214         cur.nextInset()->edit(cur, true);
 215         cur.niceInsert(sel);
 216
 217         cur.message(_("Regexp editor mode"));
 218 }
 219
 220
 221 static void specialChar(Cursor & cur, InsetSpecialChar::Kind kind)
 222 {
 223         cur.recordUndo();
 224         cap::replaceSelection(cur);
 225         cur.insert(new InsetSpecialChar(kind));
 226         cur.posForward();
 227 }
 228
 229
 230 static void ipaChar(Cursor & cur, InsetIPAChar::Kind kind)
 231 {
 232         cur.recordUndo();
 233         cap::replaceSelection(cur);
 234         cur.insert(new InsetIPAChar(kind));
 235         cur.posForward();
 236 }
 237
 238
 239 static bool doInsertInset(Cursor & cur, Text * text,
 240         FuncRequest const & cmd, bool edit, bool pastesel)
 241 {
 242         Buffer & buffer = cur.bv().buffer();
 243         BufferParams const & bparams = buffer.params();
 244         Inset * inset = createInset(&buffer, cmd);
 245         if (!inset)
 246                 return false;
 247
 248         if (InsetCollapsable * ci = inset->asInsetCollapsable())
 249                 ci->setButtonLabel();
 250
 251         cur.recordUndo();
 252         if (cmd.action() == LFUN_INDEX_INSERT) {
 253                 docstring ds = subst(text->getStringToIndex(cur), '\n', ' ');
 254                 text->insertInset(cur, inset);
 255                 if (edit)
 256                         inset->edit(cur, true);
 257                 // Now put this into inset
 258                 Font const f(inherit_font, cur.current_font.language());
 259                 if (!ds.empty()) {
 260                         cur.text()->insertStringAsLines(cur, ds, f);
 261                         cur.leaveInset(*inset);
 262                 }
 263                 return true;
 264         }
 265         else if (cmd.action() == LFUN_ARGUMENT_INSERT) {
 266                 bool cotextinsert = false;
 267                 InsetArgument const * const ia = static_cast<InsetArgument const *>(inset);
 268                 Layout const & lay = cur.paragraph().layout();
 269                 Layout::LaTeXArgMap args = lay.args();
 270                 Layout::LaTeXArgMap::const_iterator const lait = args.find(ia->name());
 271                 if (lait != args.end())
 272                         cotextinsert = (*lait).second.insertcotext;
 273                 else {
 274                         InsetLayout const & il = cur.inset().getLayout();
 275                         args = il.args();
 276                         Layout::LaTeXArgMap::const_iterator const ilait = args.find(ia->name());
 277                         if (ilait != args.end())
 278                                 cotextinsert = (*ilait).second.insertcotext;
 279                 }
 280                 // The argument requests to insert a copy of the co-text to the inset
 281                 if (cotextinsert) {
 282                         docstring ds;
 283                         // If we have a selection within a paragraph, use this
 284                         if (cur.selection() && cur.selBegin().pit() == cur.selEnd().pit())
 285                                 ds = cur.selectionAsString(false);
 286                         // else use the whole paragraph
 287                         else
 288                                 ds = cur.paragraph().asString();
 289                         text->insertInset(cur, inset);
 290                         if (edit)
 291                                 inset->edit(cur, true);
 292                         // Now put co-text into inset
 293                         Font const f(inherit_font, cur.current_font.language());
 294                         if (!ds.empty()) {
 295                                 cur.text()->insertStringAsLines(cur, ds, f);
 296                                 cur.leaveInset(*inset);
 297                         }
 298                         return true;
 299                 }
 300         }
 301
 302         bool gotsel = false;
 303         if (cur.selection()) {
 304                 cutSelectionToTemp(cur, false, pastesel);
 305                 cur.clearSelection();
 306                 gotsel = true;
 307         }
 308         text->insertInset(cur, inset);
 309
 310         if (edit)
 311                 inset->edit(cur, true);
 312
 313         if (!gotsel || !pastesel)
 314                 return true;
 315
 316         pasteFromTemp(cur, cur.buffer()->errorList("Paste"));
 317         cur.buffer()->errors("Paste");
 318         cur.clearSelection(); // bug 393
 319         cur.finishUndo();
 320         InsetText * inset_text = inset->asInsetText();
 321         if (inset_text) {
 322                 inset_text->fixParagraphsFont();
 323                 if (!inset_text->allowMultiPar() || cur.lastpit() == 0) {
 324                         // reset first par to default
 325                         cur.text()->paragraphs().begin()
 326                                 ->setPlainOrDefaultLayout(bparams.documentClass());
 327                         cur.pos() = 0;
 328                         cur.pit() = 0;
 329                         // Merge multiple paragraphs -- hack
 330                         while (cur.lastpit() > 0)
 331                                 mergeParagraph(bparams, cur.text()->paragraphs(), 0);
 332                         if (cmd.action() == LFUN_FLEX_INSERT)
 333                                 return true;
 334                         Cursor old = cur;
 335                         cur.leaveInset(*inset);
 336                         if (cmd.action() == LFUN_PREVIEW_INSERT
 337                             || cmd.action() == LFUN_IPA_INSERT)
 338                                 // trigger preview
 339                                 notifyCursorLeavesOrEnters(old, cur);
 340                 }
 341         } else {
 342                 cur.leaveInset(*inset);
 343                 // reset surrounding par to default
 344                 DocumentClass const & dc = bparams.documentClass();
 345                 docstring const layoutname = inset->usePlainLayout()
 346                         ? dc.plainLayoutName()
 347                         : dc.defaultLayoutName();
 348                 text->setLayout(cur, layoutname);
 349         }
 350         return true;
 351 }
 352
 353
 354 string const freefont2string()
 355 {
 356         return freefont.toString(toggleall);
 357 }
 358
 359
 360 /// the type of outline operation
 361 enum OutlineOp {
 362         OutlineUp, // Move this header with text down
 363         OutlineDown,   // Move this header with text up
 364         OutlineIn, // Make this header deeper
 365         OutlineOut // Make this header shallower
 366 };
 367
 368
 369 static void outline(OutlineOp mode, Cursor & cur)
 370 {
 371         Buffer & buf = *cur.buffer();
 372         pit_type & pit = cur.pit();
 373         ParagraphList & pars = buf.text().paragraphs();
 374         ParagraphList::iterator const bgn = pars.begin();
 375         // The first paragraph of the area to be copied:
 376         ParagraphList::iterator start = lyx::next(bgn, pit);
 377         // The final paragraph of area to be copied:
 378         ParagraphList::iterator finish = start;
 379         ParagraphList::iterator const end = pars.end();
 380
 381         int const thistoclevel = buf.text().getTocLevel(distance(bgn, start));
 382         int toclevel;
 383
 384         // Move out (down) from this section header
 385         if (finish != end)
 386                 ++finish;
 387
 388         // Seek the one (on same level) below
 389         for (; finish != end; ++finish) {
 390                 toclevel = buf.text().getTocLevel(distance(bgn, finish));
 391                 if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel)
 392                         break;
 393         }
 394
 395         switch (mode) {
 396                 case OutlineUp: {
 397                         if (start == pars.begin())
 398                                 // Nothing to move.
 399                                 return;
 400                         ParagraphList::iterator dest = start;
 401                         // Move out (up) from this header
 402                         if (dest == bgn)
 403                                 return;
 404                         // Search previous same-level header above
 405                         do {
 406                                 --dest;
 407                                 toclevel = buf.text().getTocLevel(distance(bgn, dest));
 408                         } while(dest != bgn
 409                                 && (toclevel == Layout::NOT_IN_TOC
 410                                     || toclevel > thistoclevel));
 411                         // Not found; do nothing
 412                         if (toclevel == Layout::NOT_IN_TOC || toclevel > thistoclevel)
 413                                 return;
 414                         pit_type const newpit = distance(bgn, dest);
 415                         pit_type const len = distance(start, finish);
 416                         pit_type const deletepit = pit + len;
 417                         buf.undo().recordUndo(cur, newpit, deletepit - 1);
 418                         pars.splice(dest, start, finish);
 419                         cur.pit() = newpit;
 420                         break;
 421                 }
 422                 case OutlineDown: {
 423                         if (finish == end)
 424                                 // Nothing to move.
 425                                 return;
 426                         // Go one down from *this* header:
 427                         ParagraphList::iterator dest = next(finish, 1);
 428                         // Go further down to find header to insert in front of:
 429                         for (; dest != end; ++dest) {
 430                                 toclevel = buf.text().getTocLevel(distance(bgn, dest));
 431                                 if (toclevel != Layout::NOT_IN_TOC
 432                                       && toclevel <= thistoclevel)
 433                                         break;
 434                         }
 435                         // One such was found:
 436                         pit_type newpit = distance(bgn, dest);
 437                         buf.undo().recordUndo(cur, pit, newpit - 1);
 438                         pit_type const len = distance(start, finish);
 439                         pars.splice(dest, start, finish);
 440                         cur.pit() = newpit - len;
 441                         break;
 442                 }
 443                 case OutlineIn:
 444                 case OutlineOut: {
 445                         pit_type const len = distance(start, finish);
 446                         buf.undo().recordUndo(cur, pit, pit + len - 1);
 447                         for (; start != finish; ++start) {
 448                                 toclevel = buf.text().getTocLevel(distance(bgn, start));
 449                                 if (toclevel == Layout::NOT_IN_TOC)
 450                                         continue;
 451
 452                                 DocumentClass const & tc = buf.params().documentClass();
 453                                 DocumentClass::const_iterator lit = tc.begin();
 454                                 DocumentClass::const_iterator len = tc.end();
 455                                 int const newtoclevel =
 456                                         (mode == OutlineIn ? toclevel + 1 : toclevel - 1);
 457                                 LabelType const oldlabeltype = start->layout().labeltype;
 458
 459                                 for (; lit != len; ++lit) {
 460                                         if (lit->toclevel ==  newtoclevel &&
 461                                              lit->labeltype == oldlabeltype) {
 462                                                 start->setLayout(*lit);
 463                                                 break;
 464                                         }
 465                                 }
 466                         }
 467                         break;
 468                 }
 469         }
 470 }
 471
 472
 473 void Text::number(Cursor & cur)
 474 {
 475         FontInfo font = ignore_font;
 476         font.setNumber(FONT_TOGGLE);
 477         toggleAndShow(cur, this, Font(font, ignore_language));
 478 }
 479
 480
 481 bool Text::isRTL(Paragraph const & par) const
 482 {
 483         Buffer const & buffer = owner_->buffer();
 484         return par.isRTL(buffer.params());
 485 }
 486
 487
 488 namespace {
 489
 490         Language const * getLanguage(Cursor const & cur, string const & lang) {
 491                 return lang.empty() ? cur.getFont().language() : languages.getLanguage(lang);
 492         }
 493
 494 }
 495
 496
 497 void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 498 {
 499         LYXERR(Debug::ACTION, "Text::dispatch: cmd: " << cmd);
 500
 501         // Dispatch if the cursor is inside the text. It is not the
 502         // case for context menus (bug 5797).
 503         if (cur.text() != this) {
 504                 cur.undispatched();
 505                 return;
 506         }
 507
 508         BufferView * bv = &cur.bv();
 509         TextMetrics * tm = &bv->textMetrics(this);
 510         if (!tm->contains(cur.pit())) {
 511                 lyx::dispatch(FuncRequest(LFUN_SCREEN_SHOW_CURSOR));
 512                 tm = &bv->textMetrics(this);
 513         }
 514
 515         // FIXME: We use the update flag to indicates wether a singlePar or a
 516         // full screen update is needed. We reset it here but shall we restore it
 517         // at the end?
 518         cur.noScreenUpdate();
 519
 520         LBUFERR(this == cur.text());
 521
 522         // NOTE: This should NOT be a reference. See commit 94a5481a.
 523         CursorSlice const oldTopSlice = cur.top();
 524         bool const oldBoundary = cur.boundary();
 525         bool const oldSelection = cur.selection();
 526         // Signals that, even if needsUpdate == false, an update of the
 527         // cursor paragraph is required
 528         bool singleParUpdate = lyxaction.funcHasFlag(cmd.action(),
 529                 LyXAction::SingleParUpdate);
 530         // Signals that a full-screen update is required
 531         bool needsUpdate = !(lyxaction.funcHasFlag(cmd.action(),
 532                 LyXAction::NoUpdate) || singleParUpdate);
 533         bool const last_misspelled = lyxrc.spellcheck_continuously
 534                 && cur.paragraph().isMisspelled(cur.pos(), true);
 535
 536         FuncCode const act = cmd.action();
 537         switch (act) {
 538
 539         case LFUN_PARAGRAPH_MOVE_DOWN: {
 540                 pit_type const pit = cur.pit();
 541                 cur.recordUndo(pit, pit + 1);
 542                 cur.finishUndo();
 543                 pars_.swap(pit, pit + 1);
 544                 needsUpdate = true;
 545                 cur.forceBufferUpdate();
 546                 ++cur.pit();
 547                 break;
 548         }
 549
 550         case LFUN_PARAGRAPH_MOVE_UP: {
 551                 pit_type const pit = cur.pit();
 552                 cur.recordUndo(pit - 1, pit);
 553                 cur.finishUndo();
 554                 pars_.swap(pit, pit - 1);
 555                 --cur.pit();
 556                 needsUpdate = true;
 557                 cur.forceBufferUpdate();
 558                 break;
 559         }
 560
 561         case LFUN_APPENDIX: {
 562                 Paragraph & par = cur.paragraph();
 563                 bool start = !par.params().startOfAppendix();
 564
 565 // FIXME: The code below only makes sense at top level.
 566 // Should LFUN_APPENDIX be restricted to top-level paragraphs?
 567                 // ensure that we have only one start_of_appendix in this document
 568                 // FIXME: this don't work for multipart document!
 569                 for (pit_type tmp = 0, end = pars_.size(); tmp != end; ++tmp) {
 570                         if (pars_[tmp].params().startOfAppendix()) {
 571                                 cur.recordUndo(tmp, tmp);
 572                                 pars_[tmp].params().startOfAppendix(false);
 573                                 break;
 574                         }
 575                 }
 576
 577                 cur.recordUndo();
 578                 par.params().startOfAppendix(start);
 579
 580                 // we can set the refreshing parameters now
 581                 cur.forceBufferUpdate();
 582                 break;
 583         }
 584
 585         case LFUN_WORD_DELETE_FORWARD:
 586                 if (cur.selection())
 587                         cutSelection(cur, true, false);
 588                 else
 589                         deleteWordForward(cur, cmd.getArg(0) == "force");
 590                 finishChange(cur, false);
 591                 break;
 592
 593         case LFUN_WORD_DELETE_BACKWARD:
 594                 if (cur.selection())
 595                         cutSelection(cur, true, false);
 596                 else
 597                         deleteWordBackward(cur, cmd.getArg(0) == "force");
 598                 finishChange(cur, false);
 599                 break;
 600
 601         case LFUN_LINE_DELETE_FORWARD:
 602                 if (cur.selection())
 603                         cutSelection(cur, true, false);
 604                 else
 605                         tm->deleteLineForward(cur);
 606                 finishChange(cur, false);
 607                 break;
 608
 609         case LFUN_BUFFER_BEGIN:
 610         case LFUN_BUFFER_BEGIN_SELECT:
 611                 needsUpdate |= cur.selHandle(act == LFUN_BUFFER_BEGIN_SELECT);
 612                 if (cur.depth() == 1)
 613                         needsUpdate |= cursorTop(cur);
 614                 else
 615                         cur.undispatched();
 616                 cur.screenUpdateFlags(Update::FitCursor);
 617                 break;
 618
 619         case LFUN_BUFFER_END:
 620         case LFUN_BUFFER_END_SELECT:
 621                 needsUpdate |= cur.selHandle(act == LFUN_BUFFER_END_SELECT);
 622                 if (cur.depth() == 1)
 623                         needsUpdate |= cursorBottom(cur);
 624                 else
 625                         cur.undispatched();
 626                 cur.screenUpdateFlags(Update::FitCursor);
 627                 break;
 628
 629         case LFUN_INSET_BEGIN:
 630         case LFUN_INSET_BEGIN_SELECT:
 631                 needsUpdate |= cur.selHandle(act == LFUN_INSET_BEGIN_SELECT);
 632                 if (cur.depth() == 1 || !cur.top().at_begin())
 633                         needsUpdate |= cursorTop(cur);
 634                 else
 635                         cur.undispatched();
 636                 cur.screenUpdateFlags(Update::FitCursor);
 637                 break;
 638
 639         case LFUN_INSET_END:
 640         case LFUN_INSET_END_SELECT:
 641                 needsUpdate |= cur.selHandle(act == LFUN_INSET_END_SELECT);
 642                 if (cur.depth() == 1 || !cur.top().at_end())
 643                         needsUpdate |= cursorBottom(cur);
 644                 else
 645                         cur.undispatched();
 646                 cur.screenUpdateFlags(Update::FitCursor);
 647                 break;
 648
 649         case LFUN_CHAR_FORWARD:
 650         case LFUN_CHAR_FORWARD_SELECT: {
 651                 //LYXERR0(" LFUN_CHAR_FORWARD[SEL]:\n" << cur);
 652                 needsUpdate |= cur.selHandle(act == LFUN_CHAR_FORWARD_SELECT);
 653                 bool const cur_moved = cursorForward(cur);
 654                 needsUpdate |= cur_moved;
 655
 656                 if (!cur_moved && oldTopSlice == cur.top()
 657                                && cur.boundary() == oldBoundary) {
 658                         cur.undispatched();
 659                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 660
 661                         // we will probably be moving out the inset, so we should execute
 662                         // the depm-mechanism, but only when the cursor has a place to
 663                         // go outside this inset, i.e. in a slice above.
 664                         if (cur.depth() > 1 && cur.pos() == cur.lastpos()
 665                                   && cur.pit() == cur.lastpit()) {
 666                                 // The cursor hasn't changed yet. To give the
 667                                 // DEPM the possibility of doing something we must
 668                                 // provide it with two different cursors.
 669                                 Cursor dummy = cur;
 670                                 dummy.pos() = dummy.pit() = 0;
 671                                 if (cur.bv().checkDepm(dummy, cur))
 672                                         cur.forceBufferUpdate();
 673                         }
 674                 }
 675                 break;
 676         }
 677
 678         case LFUN_CHAR_BACKWARD:
 679         case LFUN_CHAR_BACKWARD_SELECT: {
 680                 //lyxerr << "handle LFUN_CHAR_BACKWARD[_SELECT]:\n" << cur << endl;
 681                 needsUpdate |= cur.selHandle(act == LFUN_CHAR_BACKWARD_SELECT);
 682                 bool const cur_moved = cursorBackward(cur);
 683                 needsUpdate |= cur_moved;
 684
 685                 if (!cur_moved && oldTopSlice == cur.top()
 686                                && cur.boundary() == oldBoundary) {
 687                         cur.undispatched();
 688                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
 689
 690                         // we will probably be moving out the inset, so we should execute
 691                         // the depm-mechanism, but only when the cursor has a place to
 692                         // go outside this inset, i.e. in a slice above.
 693                         if (cur.depth() > 1 && cur.pos() == 0 && cur.pit() == 0) {
 694                                 // The cursor hasn't changed yet. To give the
 695                                 // DEPM the possibility of doing something we must
 696                                 // provide it with two different cursors.
 697                                 Cursor dummy = cur;
 698                                 dummy.pos() = cur.lastpos();
 699                                 dummy.pit() = cur.lastpit();
 700                                 if (cur.bv().checkDepm(dummy, cur))
 701                                         cur.forceBufferUpdate();
 702                         }
 703                 }
 704                 break;
 705         }
 706
 707         case LFUN_CHAR_LEFT:
 708         case LFUN_CHAR_LEFT_SELECT:
 709                 if (lyxrc.visual_cursor) {
 710                         needsUpdate |= cur.selHandle(act == LFUN_CHAR_LEFT_SELECT);
 711                         bool const cur_moved = cursorVisLeft(cur);
 712                         needsUpdate |= cur_moved;
 713                         if (!cur_moved && oldTopSlice == cur.top()
 714                                        && cur.boundary() == oldBoundary) {
 715                                 cur.undispatched();
 716                                 cmd = FuncRequest(LFUN_FINISHED_LEFT);
 717                         }
 718                 } else {
 719                         if (cur.reverseDirectionNeeded()) {
 720                                 cmd.setAction(cmd.action() == LFUN_CHAR_LEFT_SELECT ?
 721                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD);
 722                         } else {
 723                                 cmd.setAction(cmd.action() == LFUN_CHAR_LEFT_SELECT ?
 724                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD);
 725                         }
 726                         dispatch(cur, cmd);
 727                         return;
 728                 }
 729                 break;
 730
 731         case LFUN_CHAR_RIGHT:
 732         case LFUN_CHAR_RIGHT_SELECT:
 733                 if (lyxrc.visual_cursor) {
 734                         needsUpdate |= cur.selHandle(cmd.action() == LFUN_CHAR_RIGHT_SELECT);
 735                         bool const cur_moved = cursorVisRight(cur);
 736                         needsUpdate |= cur_moved;
 737                         if (!cur_moved && oldTopSlice == cur.top()
 738                                        && cur.boundary() == oldBoundary) {
 739                                 cur.undispatched();
 740                                 cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 741                         }
 742                 } else {
 743                         if (cur.reverseDirectionNeeded()) {
 744                                 cmd.setAction(cmd.action() == LFUN_CHAR_RIGHT_SELECT ?
 745                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD);
 746                         } else {
 747                                 cmd.setAction(cmd.action() == LFUN_CHAR_RIGHT_SELECT ?
 748                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD);
 749                         }
 750                         dispatch(cur, cmd);
 751                         return;
 752                 }
 753                 break;
 754
 755
 756         case LFUN_UP_SELECT:
 757         case LFUN_DOWN_SELECT:
 758         case LFUN_UP:
 759         case LFUN_DOWN: {
 760                 // stop/start the selection
 761                 bool select = cmd.action() == LFUN_DOWN_SELECT ||
 762                         cmd.action() == LFUN_UP_SELECT;
 763
 764                 // move cursor up/down
 765                 bool up = cmd.action() == LFUN_UP_SELECT || cmd.action() == LFUN_UP;
 766                 bool const atFirstOrLastRow = cur.atFirstOrLastRow(up);
 767
 768                 if (!atFirstOrLastRow) {
 769                         needsUpdate |= cur.selHandle(select);
 770                         cur.upDownInText(up, needsUpdate);
 771                         needsUpdate |= cur.beforeDispatchCursor().inMathed();
 772                 } else {
 773                         // if the cursor cannot be moved up or down do not remove
 774                         // the selection right now, but wait for the next dispatch.
 775                         if (select)
 776                                 needsUpdate |= cur.selHandle(select);
 777                         cur.upDownInText(up, needsUpdate);
 778                         cur.undispatched();
 779                 }
 780
 781                 break;
 782         }
 783
 784         case LFUN_PARAGRAPH_UP:
 785         case LFUN_PARAGRAPH_UP_SELECT:
 786                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_PARAGRAPH_UP_SELECT);
 787                 needsUpdate |= cursorUpParagraph(cur);
 788                 break;
 789
 790         case LFUN_PARAGRAPH_DOWN:
 791         case LFUN_PARAGRAPH_DOWN_SELECT:
 792                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_PARAGRAPH_DOWN_SELECT);
 793                 needsUpdate |= cursorDownParagraph(cur);
 794                 break;
 795
 796         case LFUN_LINE_BEGIN:
 797         case LFUN_LINE_BEGIN_SELECT:
 798                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_LINE_BEGIN_SELECT);
 799                 needsUpdate |= tm->cursorHome(cur);
 800                 break;
 801
 802         case LFUN_LINE_END:
 803         case LFUN_LINE_END_SELECT:
 804                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_LINE_END_SELECT);
 805                 needsUpdate |= tm->cursorEnd(cur);
 806                 break;
 807
 808         case LFUN_SECTION_SELECT: {
 809                 Buffer const & buf = *cur.buffer();
 810                 pit_type const pit = cur.pit();
 811                 ParagraphList & pars = buf.text().paragraphs();
 812                 ParagraphList::iterator bgn = pars.begin();
 813                 // The first paragraph of the area to be selected:
 814                 ParagraphList::iterator start = lyx::next(bgn, pit);
 815                 // The final paragraph of area to be selected:
 816                 ParagraphList::iterator finish = start;
 817                 ParagraphList::iterator end = pars.end();
 818
 819                 int const thistoclevel = buf.text().getTocLevel(distance(bgn, start));
 820                 if (thistoclevel == Layout::NOT_IN_TOC)
 821                         break;
 822
 823                 cur.pos() = 0;
 824                 Cursor const old_cur = cur;
 825                 needsUpdate |= cur.selHandle(true);
 826
 827                 // Move out (down) from this section header
 828                 if (finish != end)
 829                         ++finish;
 830
 831                 // Seek the one (on same level) below
 832                 for (; finish != end; ++finish, ++cur.pit()) {
 833                         int const toclevel = buf.text().getTocLevel(distance(bgn, finish));
 834                         if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel)
 835                                 break;
 836                 }
 837                 cur.pos() = cur.lastpos();
 838
 839                 needsUpdate |= cur != old_cur;
 840                 break;
 841         }
 842
 843         case LFUN_WORD_RIGHT:
 844         case LFUN_WORD_RIGHT_SELECT:
 845                 if (lyxrc.visual_cursor) {
 846                         needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_RIGHT_SELECT);
 847                         bool const cur_moved = cursorVisRightOneWord(cur);
 848                         needsUpdate |= cur_moved;
 849                         if (!cur_moved && oldTopSlice == cur.top()
 850                                        && cur.boundary() == oldBoundary) {
 851                                 cur.undispatched();
 852                                 cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 853                         }
 854                 } else {
 855                         if (cur.reverseDirectionNeeded()) {
 856                                 cmd.setAction(cmd.action() == LFUN_WORD_RIGHT_SELECT ?
 857                                                 LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD);
 858                         } else {
 859                                 cmd.setAction(cmd.action() == LFUN_WORD_RIGHT_SELECT ?
 860                                                 LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD);
 861                         }
 862                         dispatch(cur, cmd);
 863                         return;
 864                 }
 865                 break;
 866
 867         case LFUN_WORD_FORWARD:
 868         case LFUN_WORD_FORWARD_SELECT: {
 869                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_FORWARD_SELECT);
 870                 bool const cur_moved = cursorForwardOneWord(cur);
 871                 needsUpdate |= cur_moved;
 872
 873                 if (!cur_moved && oldTopSlice == cur.top()
 874                                && cur.boundary() == oldBoundary) {
 875                         cur.undispatched();
 876                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 877
 878                         // we will probably be moving out the inset, so we should execute
 879                         // the depm-mechanism, but only when the cursor has a place to
 880                         // go outside this inset, i.e. in a slice above.
 881                         if (cur.depth() > 1 && cur.pos() == cur.lastpos()
 882                                   && cur.pit() == cur.lastpit()) {
 883                                 // The cursor hasn't changed yet. To give the
 884                                 // DEPM the possibility of doing something we must
 885                                 // provide it with two different cursors.
 886                                 Cursor dummy = cur;
 887                                 dummy.pos() = dummy.pit() = 0;
 888                                 if (cur.bv().checkDepm(dummy, cur))
 889                                         cur.forceBufferUpdate();
 890                         }
 891                 }
 892                 break;
 893         }
 894
 895         case LFUN_WORD_LEFT:
 896         case LFUN_WORD_LEFT_SELECT:
 897                 if (lyxrc.visual_cursor) {
 898                         needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_LEFT_SELECT);
 899                         bool const cur_moved = cursorVisLeftOneWord(cur);
 900                         needsUpdate |= cur_moved;
 901                         if (!cur_moved && oldTopSlice == cur.top()
 902                                        && cur.boundary() == oldBoundary) {
 903                                 cur.undispatched();
 904                                 cmd = FuncRequest(LFUN_FINISHED_LEFT);
 905                         }
 906                 } else {
 907                         if (cur.reverseDirectionNeeded()) {
 908                                 cmd.setAction(cmd.action() == LFUN_WORD_LEFT_SELECT ?
 909                                                 LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD);
 910                         } else {
 911                                 cmd.setAction(cmd.action() == LFUN_WORD_LEFT_SELECT ?
 912                                                 LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD);
 913                         }
 914                         dispatch(cur, cmd);
 915                         return;
 916                 }
 917                 break;
 918
 919         case LFUN_WORD_BACKWARD:
 920         case LFUN_WORD_BACKWARD_SELECT: {
 921                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_BACKWARD_SELECT);
 922                 bool const cur_moved = cursorBackwardOneWord(cur);
 923                 needsUpdate |= cur_moved;
 924
 925                 if (!cur_moved && oldTopSlice == cur.top()
 926                                && cur.boundary() == oldBoundary) {
 927                         cur.undispatched();
 928                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
 929
 930                         // we will probably be moving out the inset, so we should execute
 931                         // the depm-mechanism, but only when the cursor has a place to
 932                         // go outside this inset, i.e. in a slice above.
 933                         if (cur.depth() > 1 && cur.pos() == 0
 934                                   && cur.pit() == 0) {
 935                                 // The cursor hasn't changed yet. To give the
 936                                 // DEPM the possibility of doing something we must
 937                                 // provide it with two different cursors.
 938                                 Cursor dummy = cur;
 939                                 dummy.pos() = cur.lastpos();
 940                                 dummy.pit() = cur.lastpit();
 941                                 if (cur.bv().checkDepm(dummy, cur))
 942                                         cur.forceBufferUpdate();
 943                         }
 944                 }
 945                 break;
 946         }
 947
 948         case LFUN_WORD_SELECT: {
 949                 selectWord(cur, WHOLE_WORD);
 950                 finishChange(cur, true);
 951                 break;
 952         }
 953
 954         case LFUN_NEWLINE_INSERT: {
 955                 InsetNewlineParams inp;
 956                 docstring arg = cmd.argument();
 957                 if (arg == "linebreak")
 958                         inp.kind = InsetNewlineParams::LINEBREAK;
 959                 else
 960                         inp.kind = InsetNewlineParams::NEWLINE;
 961                 cap::replaceSelection(cur);
 962                 cur.recordUndo();
 963                 cur.insert(new InsetNewline(inp));
 964                 cur.posForward();
 965                 moveCursor(cur, false);
 966                 break;
 967         }
 968
 969         case LFUN_TAB_INSERT: {
 970                 bool const multi_par_selection = cur.selection() &&
 971                         cur.selBegin().pit() != cur.selEnd().pit();
 972                 if (multi_par_selection) {
 973                         // If there is a multi-paragraph selection, a tab is inserted
 974                         // at the beginning of each paragraph.
 975                         cur.recordUndoSelection();
 976                         pit_type const pit_end = cur.selEnd().pit();
 977                         for (pit_type pit = cur.selBegin().pit(); pit <= pit_end; pit++) {
 978                                 pars_[pit].insertChar(0, '\t',
 979                                                       bv->buffer().params().track_changes);
 980                                 // Update the selection pos to make sure the selection does not
 981                                 // change as the inserted tab will increase the logical pos.
 982                                 if (cur.realAnchor().pit() == pit)
 983                                         cur.realAnchor().forwardPos();
 984                                 if (cur.pit() == pit)
 985                                         cur.forwardPos();
 986                         }
 987                         cur.finishUndo();
 988                 } else {
 989                         // Maybe we shouldn't allow tabs within a line, because they
 990                         // are not (yet) aligned as one might do expect.
 991                         FuncRequest cmd(LFUN_SELF_INSERT, from_ascii("\t"));
 992                         dispatch(cur, cmd);
 993                 }
 994                 break;
 995         }
 996
 997         case LFUN_TAB_DELETE: {
 998                 bool const tc = bv->buffer().params().track_changes;
 999                 if (cur.selection()) {
1000                         // If there is a selection, a tab (if present) is removed from
1001                         // the beginning of each paragraph.
1002                         cur.recordUndoSelection();
1003                         pit_type const pit_end = cur.selEnd().pit();
1004                         for (pit_type pit = cur.selBegin().pit(); pit <= pit_end; pit++) {
1005                                 Paragraph & par = paragraphs()[pit];
1006                                 if (par.empty())
1007                                         continue;
1008                                 char_type const c = par.getChar(0);
1009                                 if (c == '\t' || c == ' ') {
1010                                         // remove either 1 tab or 4 spaces.
1011                                         int const n = (c == ' ' ? 4 : 1);
1012                                         for (int i = 0; i < n
1013                                                   && !par.empty() && par.getChar(0) == c; ++i) {
1014                                                 if (cur.pit() == pit)
1015                                                         cur.posBackward();
1016                                                 if (cur.realAnchor().pit() == pit
1017                                                           && cur.realAnchor().pos() > 0 )
1018                                                         cur.realAnchor().backwardPos();
1019                                                 par.eraseChar(0, tc);
1020                                         }
1021                                 }
1022                         }
1023                         cur.finishUndo();
1024                 } else {
1025                         // If there is no selection, try to remove a tab or some spaces
1026                         // before the position of the cursor.
1027                         Paragraph & par = paragraphs()[cur.pit()];
1028                         pos_type const pos = cur.pos();
1029
1030                         if (pos == 0)
1031                                 break;
1032
1033                         char_type const c = par.getChar(pos - 1);
1034                         cur.recordUndo();
1035                         if (c == '\t') {
1036                                 cur.posBackward();
1037                                 par.eraseChar(cur.pos(), tc);
1038                         } else
1039                                 for (int n_spaces = 0;
1040                                      cur.pos() > 0
1041                                              && par.getChar(cur.pos() - 1) == ' '
1042                                              && n_spaces < 4;
1043                                      ++n_spaces) {
1044                                         cur.posBackward();
1045                                         par.eraseChar(cur.pos(), tc);
1046                                 }
1047                         cur.finishUndo();
1048                 }
1049                 break;
1050         }
1051
1052         case LFUN_CHAR_DELETE_FORWARD:
1053                 if (!cur.selection()) {
1054                         if (cur.pos() == cur.paragraph().size())
1055                                 // Par boundary, force full-screen update
1056                                 singleParUpdate = false;
1057                         else if (cmd.getArg(0) != "force" && cur.confirmDeletion()) {
1058                                 cur.resetAnchor();
1059                                 cur.selection(true);
1060                                 cur.posForward();
1061                                 cur.setSelection();
1062                                 break;
1063                         }
1064                         needsUpdate |= erase(cur);
1065                         cur.resetAnchor();
1066                 } else {
1067                         cutSelection(cur, true, false);
1068                         singleParUpdate = false;
1069                 }
1070                 moveCursor(cur, false);
1071                 break;
1072
1073         case LFUN_CHAR_DELETE_BACKWARD:
1074                 if (!cur.selection()) {
1075                         if (bv->getIntl().getTransManager().backspace()) {
1076                                 bool par_boundary = cur.pos() == 0;
1077                                 bool first_par = cur.pit() == 0;
1078                                 // Par boundary, full-screen update
1079                                 if (par_boundary)
1080                                         singleParUpdate = false;
1081                                 else if (cmd.getArg(0) != "force" && cur.confirmDeletion(true)) {
1082                                         cur.resetAnchor();
1083                                         cur.selection(true);
1084                                         cur.posBackward();
1085                                         cur.setSelection();
1086                                         break;
1087                                 }
1088                                 needsUpdate |= backspace(cur);
1089                                 cur.resetAnchor();
1090                                 if (par_boundary && !first_par && cur.pos() > 0
1091                                     && cur.paragraph().isEnvSeparator(cur.pos() - 1)) {
1092                                         needsUpdate |= backspace(cur);
1093                                         cur.resetAnchor();
1094                                 }
1095                         }
1096                 } else {
1097                         cutSelection(cur, true, false);
1098                         singleParUpdate = false;
1099                 }
1100                 break;
1101
1102         case LFUN_PARAGRAPH_BREAK: {
1103                 cap::replaceSelection(cur);
1104                 pit_type pit = cur.pit();
1105                 Paragraph const & par = pars_[pit];
1106                 bool lastpar = (pit == pit_type(pars_.size() - 1));
1107                 Paragraph const & nextpar = lastpar ? par : pars_[pit + 1];
1108                 pit_type prev = pit > 0 ? depthHook(pit, par.getDepth()) : pit;
1109                 if (prev < pit && cur.pos() == par.beginOfBody()
1110                     && !par.size() && !par.isEnvSeparator(cur.pos())
1111                     && !par.layout().isCommand()
1112                     && pars_[prev].layout() != par.layout()
1113                     && pars_[prev].layout().isEnvironment()
1114                     && !nextpar.isEnvSeparator(nextpar.beginOfBody())) {
1115                         if (par.layout().isEnvironment()
1116                             && pars_[prev].getDepth() == par.getDepth()) {
1117                                 docstring const layout = par.layout().name();
1118                                 DocumentClass const & tc = bv->buffer().params().documentClass();
1119                                 lyx::dispatch(FuncRequest(LFUN_LAYOUT, tc.plainLayout().name()));
1120                                 lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "plain"));
1121                                 lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse"));
1122                                 lyx::dispatch(FuncRequest(LFUN_LAYOUT, layout));
1123                         } else {
1124                                 lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "plain"));
1125                                 breakParagraph(cur);
1126                         }
1127                         Font const f(inherit_font, cur.current_font.language());
1128                         pars_[cur.pit() - 1].resetFonts(f);
1129                 } else {
1130                         if (par.isEnvSeparator(cur.pos()))
1131                                 cur.posForward();
1132                         breakParagraph(cur, cmd.argument() == "inverse");
1133                 }
1134                 cur.resetAnchor();
1135                 // If we have a list and autoinsert item insets,
1136                 // insert them now.
1137                 Layout::LaTeXArgMap args = par.layout().args();
1138                 Layout::LaTeXArgMap::const_iterator lait = args.begin();
1139                 Layout::LaTeXArgMap::const_iterator const laend = args.end();
1140                 for (; lait != laend; ++lait) {
1141                         Layout::latexarg arg = (*lait).second;
1142                         if (arg.autoinsert && prefixIs((*lait).first, "item:")) {
1143                                 FuncRequest cmd(LFUN_ARGUMENT_INSERT, (*lait).first);
1144                                 lyx::dispatch(cmd);
1145                         }
1146                 }
1147                 break;
1148         }
1149
1150         case LFUN_INSET_INSERT: {
1151                 cur.recordUndo();
1152
1153                 // We have to avoid triggering InstantPreview loading
1154                 // before inserting into the document. See bug #5626.
1155                 bool loaded = bv->buffer().isFullyLoaded();
1156                 bv->buffer().setFullyLoaded(false);
1157                 Inset * inset = createInset(&bv->buffer(), cmd);
1158                 bv->buffer().setFullyLoaded(loaded);
1159
1160                 if (inset) {
1161                         // FIXME (Abdel 01/02/2006):
1162                         // What follows would be a partial fix for bug 2154:
1163                         //   http://www.lyx.org/trac/ticket/2154
1164                         // This automatically put the label inset _after_ a
1165                         // numbered section. It should be possible to extend the mechanism
1166                         // to any kind of LateX environement.
1167                         // The correct way to fix that bug would be at LateX generation.
1168                         // I'll let the code here for reference as it could be used for some
1169                         // other feature like "automatic labelling".
1170                         /*
1171                         Paragraph & par = pars_[cur.pit()];
1172                         if (inset->lyxCode() == LABEL_CODE
1173                                 && !par.layout().counter.empty()) {
1174                                 // Go to the end of the paragraph
1175                                 // Warning: Because of Change-Tracking, the last
1176                                 // position is 'size()' and not 'size()-1':
1177                                 cur.pos() = par.size();
1178                                 // Insert a new paragraph
1179                                 FuncRequest fr(LFUN_PARAGRAPH_BREAK);
1180                                 dispatch(cur, fr);
1181                         }
1182                         */
1183                         if (cur.selection())
1184                                 cutSelection(cur, true, false);
1185                         cur.insert(inset);
1186                         if (inset->editable() && inset->asInsetText())
1187                                 inset->edit(cur, true);
1188                         else
1189                                 cur.posForward();
1190
1191                         // trigger InstantPreview now
1192                         if (inset->lyxCode() == EXTERNAL_CODE) {
1193                                 InsetExternal & ins =
1194                                         static_cast<InsetExternal &>(*inset);
1195                                 ins.updatePreview();
1196                         }
1197                 }
1198
1199                 break;
1200         }
1201
1202         case LFUN_INSET_DISSOLVE: {
1203                 if (dissolveInset(cur)) {
1204                         needsUpdate = true;
1205                         cur.forceBufferUpdate();
1206                 }
1207                 break;
1208         }
1209
1210         case LFUN_SET_GRAPHICS_GROUP: {
1211                 InsetGraphics * ins = graphics::getCurrentGraphicsInset(cur);
1212                 if (!ins)
1213                         break;
1214
1215                 cur.recordUndo();
1216
1217                 string id = to_utf8(cmd.argument());
1218                 string grp = graphics::getGroupParams(bv->buffer(), id);
1219                 InsetGraphicsParams tmp, inspar = ins->getParams();
1220
1221                 if (id.empty())
1222                         inspar.groupId = to_utf8(cmd.argument());
1223                 else {
1224                         InsetGraphics::string2params(grp, bv->buffer(), tmp);
1225                         tmp.filename = inspar.filename;
1226                         inspar = tmp;
1227                 }
1228
1229                 ins->setParams(inspar);
1230         }
1231
1232         case LFUN_SPACE_INSERT:
1233                 if (cur.paragraph().layout().free_spacing)
1234                         insertChar(cur, ' ');
1235                 else {
1236                         doInsertInset(cur, this, cmd, false, false);
1237                         cur.posForward();
1238                 }
1239                 moveCursor(cur, false);
1240                 break;
1241
1242         case LFUN_SPECIALCHAR_INSERT: {
1243                 string const name = to_utf8(cmd.argument());
1244                 if (name == "hyphenation")
1245                         specialChar(cur, InsetSpecialChar::HYPHENATION);
1246                 else if (name == "allowbreak")
1247                         specialChar(cur, InsetSpecialChar::ALLOWBREAK);
1248                 else if (name == "ligature-break")
1249                         specialChar(cur, InsetSpecialChar::LIGATURE_BREAK);
1250                 else if (name == "slash")
1251                         specialChar(cur, InsetSpecialChar::SLASH);
1252                 else if (name == "nobreakdash")
1253                         specialChar(cur, InsetSpecialChar::NOBREAKDASH);
1254                 else if (name == "dots")
1255                         specialChar(cur, InsetSpecialChar::LDOTS);
1256                 else if (name == "end-of-sentence")
1257                         specialChar(cur, InsetSpecialChar::END_OF_SENTENCE);
1258                 else if (name == "menu-separator")
1259                         specialChar(cur, InsetSpecialChar::MENU_SEPARATOR);
1260                 else if (name == "lyx")
1261                         specialChar(cur, InsetSpecialChar::PHRASE_LYX);
1262                 else if (name == "tex")
1263                         specialChar(cur, InsetSpecialChar::PHRASE_TEX);
1264                 else if (name == "latex")
1265                         specialChar(cur, InsetSpecialChar::PHRASE_LATEX);
1266                 else if (name == "latex2e")
1267                         specialChar(cur, InsetSpecialChar::PHRASE_LATEX2E);
1268                 else if (name.empty())
1269                         lyxerr << "LyX function 'specialchar-insert' needs an argument." << endl;
1270                 else
1271                         lyxerr << "Wrong argument for LyX function 'specialchar-insert'." << endl;
1272                 break;
1273         }
1274
1275         case LFUN_IPAMACRO_INSERT: {
1276                 string const arg = cmd.getArg(0);
1277                 if (arg == "deco") {
1278                         // Open the inset, and move the current selection
1279                         // inside it.
1280                         doInsertInset(cur, this, cmd, true, true);
1281                         cur.posForward();
1282                         // Some insets are numbered, others are shown in the outline pane so
1283                         // let's update the labels and the toc backend.
1284                         cur.forceBufferUpdate();
1285                         break;
1286                 }
1287                 if (arg == "tone-falling")
1288                         ipaChar(cur, InsetIPAChar::TONE_FALLING);
1289                 else if (arg == "tone-rising")
1290                         ipaChar(cur, InsetIPAChar::TONE_RISING);
1291                 else if (arg == "tone-high-rising")
1292                         ipaChar(cur, InsetIPAChar::TONE_HIGH_RISING);
1293                 else if (arg == "tone-low-rising")
1294                         ipaChar(cur, InsetIPAChar::TONE_LOW_RISING);
1295                 else if (arg == "tone-high-rising-falling")
1296                         ipaChar(cur, InsetIPAChar::TONE_HIGH_RISING_FALLING);
1297                 else if (arg.empty())
1298                         lyxerr << "LyX function 'ipamacro-insert' needs an argument." << endl;
1299                 else
1300                         lyxerr << "Wrong argument for LyX function 'ipamacro-insert'." << endl;
1301                 break;
1302         }
1303
1304         case LFUN_WORD_UPCASE:
1305                 changeCase(cur, text_uppercase, cmd.getArg(0) == "partial");
1306                 break;
1307
1308         case LFUN_WORD_LOWCASE:
1309                 changeCase(cur, text_lowercase, cmd.getArg(0) == "partial");
1310                 break;
1311
1312         case LFUN_WORD_CAPITALIZE:
1313                 changeCase(cur, text_capitalization, cmd.getArg(0) == "partial");
1314                 break;
1315
1316         case LFUN_CHARS_TRANSPOSE:
1317                 charsTranspose(cur);
1318                 break;
1319
1320         case LFUN_PASTE: {
1321                 cur.message(_("Paste"));
1322                 LASSERT(cur.selBegin().idx() == cur.selEnd().idx(), break);
1323                 cap::replaceSelection(cur);
1324
1325                 // without argument?
1326                 string const arg = to_utf8(cmd.argument());
1327                 if (arg.empty()) {
1328                         bool tryGraphics = true;
1329                         if (theClipboard().isInternal())
1330                                 pasteFromStack(cur, bv->buffer().errorList("Paste"), 0);
1331                         else if (theClipboard().hasTextContents()) {
1332                                 if (pasteClipboardText(cur, bv->buffer().errorList("Paste"),
1333                                                        true, Clipboard::AnyTextType))
1334                                         tryGraphics = false;
1335                         }
1336                         if (tryGraphics && theClipboard().hasGraphicsContents())
1337                                 pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"));
1338                 } else if (isStrUnsignedInt(arg)) {
1339                         // we have a numerical argument
1340                         pasteFromStack(cur, bv->buffer().errorList("Paste"),
1341                                        convert<unsigned int>(arg));
1342                 } else if (arg == "html" || arg == "latex") {
1343                         Clipboard::TextType type = (arg == "html") ?
1344                                 Clipboard::HtmlTextType : Clipboard::LaTeXTextType;
1345                         pasteClipboardText(cur, bv->buffer().errorList("Paste"), true, type);
1346                 } else {
1347                         Clipboard::GraphicsType type = Clipboard::AnyGraphicsType;
1348                         if (arg == "pdf")
1349                                 type = Clipboard::PdfGraphicsType;
1350                         else if (arg == "png")
1351                                 type = Clipboard::PngGraphicsType;
1352                         else if (arg == "jpeg")
1353                                 type = Clipboard::JpegGraphicsType;
1354                         else if (arg == "linkback")
1355                                 type = Clipboard::LinkBackGraphicsType;
1356                         else if (arg == "emf")
1357                                 type = Clipboard::EmfGraphicsType;
1358                         else if (arg == "wmf")
1359                                 type = Clipboard::WmfGraphicsType;
1360                         else
1361                                 // we also check in getStatus()
1362                                 LYXERR0("Unrecognized graphics type: " << arg);
1363
1364                         pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"), type);
1365                 }
1366
1367                 bv->buffer().errors("Paste");
1368                 cur.clearSelection(); // bug 393
1369                 cur.finishUndo();
1370                 break;
1371         }
1372
1373         case LFUN_CUT:
1374                 cutSelection(cur, true, true);
1375                 cur.message(_("Cut"));
1376                 break;
1377
1378         case LFUN_COPY:
1379                 copySelection(cur);
1380                 cur.message(_("Copy"));
1381                 break;
1382
1383         case LFUN_SERVER_GET_XY:
1384                 cur.message(from_utf8(
1385                         convert<string>(tm->cursorX(cur.top(), cur.boundary()))
1386                         + ' ' + convert<string>(tm->cursorY(cur.top(), cur.boundary()))));
1387                 break;
1388
1389         case LFUN_SERVER_SET_XY: {
1390                 int x = 0;
1391                 int y = 0;
1392                 istringstream is(to_utf8(cmd.argument()));
1393                 is >> x >> y;
1394                 if (!is)
1395                         lyxerr << "SETXY: Could not parse coordinates in '"
1396                                << to_utf8(cmd.argument()) << endl;
1397                 else
1398                         tm->setCursorFromCoordinates(cur, x, y);
1399                 break;
1400         }
1401
1402         case LFUN_SERVER_GET_LAYOUT:
1403                 cur.message(cur.paragraph().layout().name());
1404                 break;
1405
1406         case LFUN_LAYOUT: {
1407                 docstring layout = cmd.argument();
1408                 LYXERR(Debug::INFO, "LFUN_LAYOUT: (arg) " << to_utf8(layout));
1409
1410                 Paragraph const & para = cur.paragraph();
1411                 docstring const old_layout = para.layout().name();
1412                 DocumentClass const & tclass = bv->buffer().params().documentClass();
1413
1414                 if (layout.empty())
1415                         layout = tclass.defaultLayoutName();
1416
1417                 if (owner_->forcePlainLayout())
1418                         // in this case only the empty layout is allowed
1419                         layout = tclass.plainLayoutName();
1420                 else if (para.usePlainLayout()) {
1421                         // in this case, default layout maps to empty layout
1422                         if (layout == tclass.defaultLayoutName())
1423                                 layout = tclass.plainLayoutName();
1424                 } else {
1425                         // otherwise, the empty layout maps to the default
1426                         if (layout == tclass.plainLayoutName())
1427                                 layout = tclass.defaultLayoutName();
1428                 }
1429
1430                 bool hasLayout = tclass.hasLayout(layout);
1431
1432                 // If the entry is obsolete, use the new one instead.
1433                 if (hasLayout) {
1434                         docstring const & obs = tclass[layout].obsoleted_by();
1435                         if (!obs.empty())
1436                                 layout = obs;
1437                 }
1438
1439                 if (!hasLayout) {
1440                         cur.errorMessage(from_utf8(N_("Layout ")) + cmd.argument() +
1441                                 from_utf8(N_(" not known")));
1442                         break;
1443                 }
1444
1445                 bool change_layout = (old_layout != layout);
1446
1447                 if (!change_layout && cur.selection() &&
1448                         cur.selBegin().pit() != cur.selEnd().pit())
1449                 {
1450                         pit_type spit = cur.selBegin().pit();
1451                         pit_type epit = cur.selEnd().pit() + 1;
1452                         while (spit != epit) {
1453                                 if (pars_[spit].layout().name() != old_layout) {
1454                                         change_layout = true;
1455                                         break;
1456                                 }
1457                                 ++spit;
1458                         }
1459                 }
1460
1461                 if (change_layout)
1462                         setLayout(cur, layout);
1463
1464                 Layout::LaTeXArgMap args = tclass[layout].args();
1465                 Layout::LaTeXArgMap::const_iterator lait = args.begin();
1466                 Layout::LaTeXArgMap::const_iterator const laend = args.end();
1467                 for (; lait != laend; ++lait) {
1468                         Layout::latexarg arg = (*lait).second;
1469                         if (arg.autoinsert) {
1470                                 FuncRequest cmd(LFUN_ARGUMENT_INSERT, (*lait).first);
1471                                 lyx::dispatch(cmd);
1472                         }
1473                 }
1474
1475                 break;
1476         }
1477
1478         case LFUN_ENVIRONMENT_SPLIT: {
1479                 bool const outer = cmd.argument() == "outer";
1480                 Paragraph const & para = cur.paragraph();
1481                 docstring layout = para.layout().name();
1482                 depth_type split_depth = cur.paragraph().params().depth();
1483                 if (outer) {
1484                         // check if we have an environment in our nesting hierarchy
1485                         pit_type pit = cur.pit();
1486                         Paragraph cpar = pars_[pit];
1487                         while (true) {
1488                                 if (pit == 0 || cpar.params().depth() == 0)
1489                                         break;
1490                                 --pit;
1491                                 cpar = pars_[pit];
1492                                 if (cpar.params().depth() < split_depth
1493                                     && cpar.layout().isEnvironment()) {
1494                                                 layout = cpar.layout().name();
1495                                                 split_depth = cpar.params().depth();
1496                                 }
1497                         }
1498                 }
1499                 if (cur.pos() > 0)
1500                         lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK));
1501                 if (outer) {
1502                         while (cur.paragraph().params().depth() > split_depth)
1503                                 lyx::dispatch(FuncRequest(LFUN_DEPTH_DECREMENT));
1504                 }
1505                 DocumentClass const & tc = bv->buffer().params().documentClass();
1506                 lyx::dispatch(FuncRequest(LFUN_LAYOUT, tc.plainLayout().name()));
1507                 lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "plain"));
1508                 lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse"));
1509                 lyx::dispatch(FuncRequest(LFUN_LAYOUT, layout));
1510
1511                 break;
1512         }
1513
1514         case LFUN_CLIPBOARD_PASTE:
1515                 cap::replaceSelection(cur);
1516                 pasteClipboardText(cur, bv->buffer().errorList("Paste"),
1517                                cmd.argument() == "paragraph");
1518                 bv->buffer().errors("Paste");
1519                 break;
1520
1521         case LFUN_CLIPBOARD_PASTE_SIMPLE:
1522                 cap::replaceSelection(cur);
1523                 pasteSimpleText(cur, cmd.argument() == "paragraph");
1524                 break;
1525
1526         case LFUN_PRIMARY_SELECTION_PASTE:
1527                 cap::replaceSelection(cur);
1528                 pasteString(cur, theSelection().get(),
1529                             cmd.argument() == "paragraph");
1530                 break;
1531
1532         case LFUN_SELECTION_PASTE:
1533                 // Copy the selection buffer to the clipboard stack,
1534                 // because we want it to appear in the "Edit->Paste
1535                 // recent" menu.
1536                 cap::replaceSelection(cur);
1537                 cap::copySelectionToStack();
1538                 cap::pasteSelection(bv->cursor(), bv->buffer().errorList("Paste"));
1539                 bv->buffer().errors("Paste");
1540                 break;
1541
1542         case LFUN_UNICODE_INSERT: {
1543                 if (cmd.argument().empty())
1544                         break;
1545                 docstring hexstring = cmd.argument();
1546                 if (isHex(hexstring)) {
1547                         char_type c = hexToInt(hexstring);
1548                         if (c >= 32 && c < 0x10ffff) {
1549                                 lyxerr << "Inserting c: " << c << endl;
1550                                 docstring s = docstring(1, c);
1551                                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, s));
1552                         }
1553                 }
1554                 break;
1555         }
1556
1557         case LFUN_QUOTE_INSERT: {
1558                 cap::replaceSelection(cur);
1559                 cur.recordUndo();
1560
1561                 Paragraph const & par = cur.paragraph();
1562                 pos_type pos = cur.pos();
1563                 // Ignore deleted text before cursor
1564                 while (pos > 0 && par.isDeleted(pos - 1))
1565                         --pos;
1566
1567                 bool const inner = (cmd.getArg(0) == "single" || cmd.getArg(0) == "inner");
1568
1569                 // Guess quote side.
1570                 // A space triggers an opening quote. This is passed if the preceding
1571                 // char/inset is a space or at paragraph start.
1572                 char_type c = ' ';
1573                 if (pos > 0 && !par.isSpace(pos - 1)) {
1574                         if (cur.prevInset() && cur.prevInset()->lyxCode() == QUOTE_CODE) {
1575                                 // If an opening double quotation mark precedes, and this
1576                                 // is a single quote, make it opening as well
1577                                 InsetQuotes & ins =
1578                                         static_cast<InsetQuotes &>(*cur.prevInset());
1579                                 string const type = ins.getType();
1580                                 if (!suffixIs(type, "ld") || !inner)
1581                                         c = par.getChar(pos - 1);
1582                         }
1583                         else if (!cur.prevInset()
1584                             || (cur.prevInset() && cur.prevInset()->isChar()))
1585                                 // If a char precedes, pass that and let InsetQuote decide
1586                                 c = par.getChar(pos - 1);
1587                         else {
1588                                 while (pos > 0) {
1589                                         if (par.getInset(pos - 1)
1590                                             && !par.getInset(pos - 1)->isPartOfTextSequence()) {
1591                                                 // skip "invisible" insets
1592                                                 --pos;
1593                                                 continue;
1594                                         }
1595                                         c = par.getChar(pos - 1);
1596                                         break;
1597                                 }
1598                         }
1599                 }
1600                 InsetQuotesParams::QuoteLevel const quote_level = inner
1601                                 ? InsetQuotesParams::SecondaryQuotes : InsetQuotesParams::PrimaryQuotes;
1602                 cur.insert(new InsetQuotes(cur.buffer(), c, quote_level, cmd.getArg(1), cmd.getArg(2)));
1603                 cur.buffer()->updateBuffer();
1604                 cur.posForward();
1605                 break;
1606         }
1607
1608         case LFUN_DATE_INSERT: {
1609                 string const format = cmd.argument().empty()
1610                         ? lyxrc.date_insert_format : to_utf8(cmd.argument());
1611                 string const time = formatted_time(current_time(), format);
1612                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, time));
1613                 break;
1614         }
1615
1616         case LFUN_MOUSE_TRIPLE:
1617                 if (cmd.button() == mouse_button::button1) {
1618                         tm->cursorHome(cur);
1619                         cur.resetAnchor();
1620                         tm->cursorEnd(cur);
1621                         cur.setSelection();
1622                         bv->cursor() = cur;
1623                 }
1624                 break;
1625
1626         case LFUN_MOUSE_DOUBLE:
1627                 if (cmd.button() == mouse_button::button1) {
1628                         selectWord(cur, WHOLE_WORD);
1629                         bv->cursor() = cur;
1630                 }
1631                 break;
1632
1633         // Single-click on work area
1634         case LFUN_MOUSE_PRESS: {
1635                 // We are not marking a selection with the keyboard in any case.
1636                 Cursor & bvcur = cur.bv().cursor();
1637                 bvcur.setMark(false);
1638                 switch (cmd.button()) {
1639                 case mouse_button::button1:
1640                         if (!bvcur.selection())
1641                                 // Set the cursor
1642                                 bvcur.resetAnchor();
1643                         if (!bv->mouseSetCursor(cur, cmd.modifier() == ShiftModifier))
1644                                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1645                         if (bvcur.wordSelection())
1646                                 selectWord(bvcur, WHOLE_WORD);
1647                         break;
1648
1649                 case mouse_button::button2:
1650                         if (lyxrc.mouse_middlebutton_paste) {
1651                                 // Middle mouse pasting.
1652                                 bv->mouseSetCursor(cur);
1653                                 lyx::dispatch(
1654                                         FuncRequest(LFUN_COMMAND_ALTERNATIVES,
1655                                                     "selection-paste ; primary-selection-paste paragraph"));
1656                         }
1657                         cur.noScreenUpdate();
1658                         break;
1659
1660                 case mouse_button::button3: {
1661                         // Don't do anything if we right-click a
1662                         // selection, a context menu will popup.
1663                         if (bvcur.selection() && cur >= bvcur.selectionBegin()
1664                             && cur < bvcur.selectionEnd()) {
1665                                 cur.noScreenUpdate();
1666                                 return;
1667                         }
1668                         if (!bv->mouseSetCursor(cur, false))
1669                                 cur.screenUpdateFlags(Update::FitCursor);
1670                         break;
1671                 }
1672
1673                 default:
1674                         break;
1675                 } // switch (cmd.button())
1676                 break;
1677         }
1678         case LFUN_MOUSE_MOTION: {
1679                 // Mouse motion with right or middle mouse do nothing for now.
1680                 if (cmd.button() != mouse_button::button1) {
1681                         cur.noScreenUpdate();
1682                         return;
1683                 }
1684                 // ignore motions deeper nested than the real anchor
1685                 Cursor & bvcur = cur.bv().cursor();
1686                 if (!bvcur.realAnchor().hasPart(cur)) {
1687                         cur.undispatched();
1688                         break;
1689                 }
1690                 CursorSlice old = bvcur.top();
1691
1692                 int const wh = bv->workHeight();
1693                 int const y = max(0, min(wh - 1, cmd.y()));
1694
1695                 tm->setCursorFromCoordinates(cur, cmd.x(), y);
1696                 cur.setTargetX(cmd.x());
1697                 // Don't allow selecting a separator inset
1698                 if (cur.pos() && cur.paragraph().isEnvSeparator(cur.pos() - 1))
1699                         cur.posBackward();
1700                 if (cmd.y() >= wh)
1701                         lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1702                 else if (cmd.y() < 0)
1703                         lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1704                 // This is to allow jumping over large insets
1705                 if (cur.top() == old) {
1706                         if (cmd.y() >= wh)
1707                                 lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1708                         else if (cmd.y() < 0)
1709                                 lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1710                 }
1711                 // We continue with our existing selection or start a new one, so don't
1712                 // reset the anchor.
1713                 bvcur.setCursor(cur);
1714                 bvcur.selection(true);
1715                 if (cur.top() == old) {
1716                         // We didn't move one iota, so no need to update the screen.
1717                         cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1718                         //cur.noScreenUpdate();
1719                         return;
1720                 }
1721                 break;
1722         }
1723
1724         case LFUN_MOUSE_RELEASE:
1725                 switch (cmd.button()) {
1726                 case mouse_button::button1:
1727                         // Cursor was set at LFUN_MOUSE_PRESS or LFUN_MOUSE_MOTION time.
1728                         // If there is a new selection, update persistent selection;
1729                         // otherwise, single click does not clear persistent selection
1730                         // buffer.
1731                         if (cur.selection()) {
1732                                 // Finish selection. If double click,
1733                                 // cur is moved to the end of word by
1734                                 // selectWord but bvcur is current
1735                                 // mouse position.
1736                                 cur.bv().cursor().setSelection();
1737                                 // We might have removed an empty but drawn selection
1738                                 // (probably a margin)
1739                                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1740                         } else
1741                                 cur.noScreenUpdate();
1742                         // FIXME: We could try to handle drag and drop of selection here.
1743                         return;
1744
1745                 case mouse_button::button2:
1746                         // Middle mouse pasting is handled at mouse press time,
1747                         // see LFUN_MOUSE_PRESS.
1748                         cur.noScreenUpdate();
1749                         return;
1750
1751                 case mouse_button::button3:
1752                         // Cursor was set at LFUN_MOUSE_PRESS time.
1753                         // FIXME: If there is a selection we could try to handle a special
1754                         // drag & drop context menu.
1755                         cur.noScreenUpdate();
1756                         return;
1757
1758                 case mouse_button::none:
1759                 case mouse_button::button4:
1760                 case mouse_button::button5:
1761                         break;
1762                 } // switch (cmd.button())
1763
1764                 break;
1765
1766         case LFUN_SELF_INSERT: {
1767                 if (cmd.argument().empty())
1768                         break;
1769
1770                 // Automatically delete the currently selected
1771                 // text and replace it with what is being
1772                 // typed in now. Depends on lyxrc settings
1773                 // "auto_region_delete", which defaults to
1774                 // true (on).
1775
1776                 if (lyxrc.auto_region_delete && cur.selection())
1777                         cutSelection(cur, false, false);
1778
1779                 cur.clearSelection();
1780
1781                 docstring::const_iterator cit = cmd.argument().begin();
1782                 docstring::const_iterator const end = cmd.argument().end();
1783                 for (; cit != end; ++cit)
1784                         bv->translateAndInsert(*cit, this, cur);
1785
1786                 cur.resetAnchor();
1787                 moveCursor(cur, false);
1788                 cur.markNewWordPosition();
1789                 bv->bookmarkEditPosition();
1790                 break;
1791         }
1792
1793         case LFUN_HREF_INSERT: {
1794                 docstring content = cmd.argument();
1795                 if (content.empty() && cur.selection())
1796                         content = cur.selectionAsString(false);
1797
1798                 InsetCommandParams p(HYPERLINK_CODE);
1799                 if (!content.empty()){
1800                         // if it looks like a link, we'll put it as target,
1801                         // otherwise as name (bug #8792).
1802
1803                         // We can't do:
1804                         //   regex_match(to_utf8(content), matches, link_re)
1805                         // because smatch stores pointers to the substrings rather
1806                         // than making copies of them. And those pointers become
1807                         // invalid after regex_match returns, since it is then
1808                         // being given a temporary object. (Thanks to Georg for
1809                         // figuring that out.)
1810                         regex const link_re("^([a-z]+):.*");
1811                         smatch matches;
1812                         string const c = to_utf8(lowercase(content));
1813
1814                         if (c.substr(0,7) == "mailto:") {
1815                                 p["target"] = content;
1816                                 p["type"] = from_ascii("mailto:");
1817                         } else if (regex_match(c, matches, link_re)) {
1818                                 p["target"] = content;
1819                                 string protocol = matches.str(1);
1820                                 if (protocol == "file")
1821                                         p["type"] = from_ascii("file:");
1822                         } else
1823                                 p["name"] = content;
1824                 }
1825                 string const data = InsetCommand::params2string(p);
1826
1827                 // we need to have a target. if we already have one, then
1828                 // that gets used at the default for the name, too, which
1829                 // is probably what is wanted.
1830                 if (p["target"].empty()) {
1831                         bv->showDialog("href", data);
1832                 } else {
1833                         FuncRequest fr(LFUN_INSET_INSERT, data);
1834                         dispatch(cur, fr);
1835                 }
1836                 break;
1837         }
1838
1839         case LFUN_LABEL_INSERT: {
1840                 InsetCommandParams p(LABEL_CODE);
1841                 // Try to generate a valid label
1842                 p["name"] = (cmd.argument().empty()) ?
1843                         cur.getPossibleLabel() :
1844                         cmd.argument();
1845                 string const data = InsetCommand::params2string(p);
1846
1847                 if (cmd.argument().empty()) {
1848                         bv->showDialog("label", data);
1849                 } else {
1850                         FuncRequest fr(LFUN_INSET_INSERT, data);
1851                         dispatch(cur, fr);
1852                 }
1853                 break;
1854         }
1855
1856         case LFUN_INFO_INSERT: {
1857                 Inset * inset;
1858                 if (cmd.argument().empty() && cur.selection()) {
1859                         // if command argument is empty use current selection as parameter.
1860                         docstring ds = cur.selectionAsString(false);
1861                         cutSelection(cur, true, false);
1862                         FuncRequest cmd0(cmd, ds);
1863                         inset = createInset(cur.buffer(), cmd0);
1864                 } else {
1865                         inset = createInset(cur.buffer(), cmd);
1866                 }
1867                 if (!inset)
1868                         break;
1869                 cur.recordUndo();
1870                 insertInset(cur, inset);
1871                 cur.posForward();
1872                 break;
1873         }
1874         case LFUN_CAPTION_INSERT:
1875         case LFUN_FOOTNOTE_INSERT:
1876         case LFUN_NOTE_INSERT:
1877         case LFUN_BOX_INSERT:
1878         case LFUN_BRANCH_INSERT:
1879         case LFUN_PHANTOM_INSERT:
1880         case LFUN_ERT_INSERT:
1881         case LFUN_LISTING_INSERT:
1882         case LFUN_MARGINALNOTE_INSERT:
1883         case LFUN_ARGUMENT_INSERT:
1884         case LFUN_INDEX_INSERT:
1885         case LFUN_PREVIEW_INSERT:
1886         case LFUN_SCRIPT_INSERT:
1887         case LFUN_IPA_INSERT:
1888                 // Open the inset, and move the current selection
1889                 // inside it.
1890                 doInsertInset(cur, this, cmd, true, true);
1891                 cur.posForward();
1892                 // Some insets are numbered, others are shown in the outline pane so
1893                 // let's update the labels and the toc backend.
1894                 cur.forceBufferUpdate();
1895                 break;
1896
1897         case LFUN_FLEX_INSERT: {
1898                 // Open the inset, and move the current selection
1899                 // inside it.
1900                 bool const sel = cur.selection();
1901                 doInsertInset(cur, this, cmd, true, true);
1902                 // Insert auto-insert arguments
1903                 bool autoargs = false;
1904                 Layout::LaTeXArgMap args = cur.inset().getLayout().latexargs();
1905                 Layout::LaTeXArgMap::const_iterator lait = args.begin();
1906                 Layout::LaTeXArgMap::const_iterator const laend = args.end();
1907                 for (; lait != laend; ++lait) {
1908                         Layout::latexarg arg = (*lait).second;
1909                         if (arg.autoinsert) {
1910                                 // The cursor might have been invalidated by the replaceSelection.
1911                                 cur.buffer()->changed(true);
1912                                 FuncRequest cmd(LFUN_ARGUMENT_INSERT, (*lait).first);
1913                                 lyx::dispatch(cmd);
1914                                 autoargs = true;
1915                         }
1916                 }
1917                 if (!autoargs) {
1918                         if (sel)
1919                                 cur.leaveInset(cur.inset());
1920                         cur.posForward();
1921                 }
1922                 // Some insets are numbered, others are shown in the outline pane so
1923                 // let's update the labels and the toc backend.
1924                 cur.forceBufferUpdate();
1925                 break;
1926         }
1927
1928         case LFUN_TABULAR_INSERT:
1929                 // if there were no arguments, just open the dialog
1930                 if (doInsertInset(cur, this, cmd, false, true))
1931                         cur.posForward();
1932                 else
1933                         bv->showDialog("tabularcreate");
1934
1935                 break;
1936
1937         case LFUN_FLOAT_INSERT:
1938         case LFUN_FLOAT_WIDE_INSERT:
1939         case LFUN_WRAP_INSERT: {
1940                 // will some content be moved into the inset?
1941                 bool const content = cur.selection();
1942                 // does the content consist of multiple paragraphs?
1943                 bool const singlepar = (cur.selBegin().pit() == cur.selEnd().pit());
1944
1945                 doInsertInset(cur, this, cmd, true, true);
1946                 cur.posForward();
1947
1948                 // If some single-par content is moved into the inset,
1949                 // doInsertInset puts the cursor outside the inset.
1950                 // To insert the caption we put it back into the inset.
1951                 // FIXME cleanup doInsertInset to avoid such dances!
1952                 if (content && singlepar)
1953                         cur.backwardPos();
1954
1955                 ParagraphList & pars = cur.text()->paragraphs();
1956
1957                 DocumentClass const & tclass = bv->buffer().params().documentClass();
1958
1959                 // add a separate paragraph for the caption inset
1960                 pars.push_back(Paragraph());
1961                 pars.back().setInsetOwner(&cur.text()->inset());
1962                 pars.back().setPlainOrDefaultLayout(tclass);
1963                 int cap_pit = pars.size() - 1;
1964
1965                 // if an empty inset was created, we create an additional empty
1966                 // paragraph at the bottom so that the user can choose where to put
1967                 // the graphics (or table).
1968                 if (!content) {
1969                         pars.push_back(Paragraph());
1970                         pars.back().setInsetOwner(&cur.text()->inset());
1971                         pars.back().setPlainOrDefaultLayout(tclass);
1972                 }
1973
1974                 // reposition the cursor to the caption
1975                 cur.pit() = cap_pit;
1976                 cur.pos() = 0;
1977                 // FIXME: This Text/Cursor dispatch handling is a mess!
1978                 // We cannot use Cursor::dispatch here it needs access to up to
1979                 // date metrics.
1980                 FuncRequest cmd_caption(LFUN_CAPTION_INSERT);
1981                 doInsertInset(cur, cur.text(), cmd_caption, true, false);
1982                 cur.forceBufferUpdate();
1983                 cur.screenUpdateFlags(Update::Force);
1984                 // FIXME: When leaving the Float (or Wrap) inset we should
1985                 // delete any empty paragraph left above or below the
1986                 // caption.
1987                 break;
1988         }
1989
1990         case LFUN_NOMENCL_INSERT: {
1991                 InsetCommandParams p(NOMENCL_CODE);
1992                 if (cmd.argument().empty())
1993                         p["symbol"] = bv->cursor().innerText()->getStringToIndex(bv->cursor());
1994                 else
1995                         p["symbol"] = cmd.argument();
1996                 string const data = InsetCommand::params2string(p);
1997                 bv->showDialog("nomenclature", data);
1998                 break;
1999         }
2000
2001         case LFUN_INDEX_PRINT: {
2002                 InsetCommandParams p(INDEX_PRINT_CODE);
2003                 if (cmd.argument().empty())
2004                         p["type"] = from_ascii("idx");
2005                 else
2006                         p["type"] = cmd.argument();
2007                 string const data = InsetCommand::params2string(p);
2008                 FuncRequest fr(LFUN_INSET_INSERT, data);
2009                 dispatch(cur, fr);
2010                 break;
2011         }
2012
2013         case LFUN_NOMENCL_PRINT:
2014         case LFUN_NEWPAGE_INSERT:
2015                 // do nothing fancy
2016                 doInsertInset(cur, this, cmd, false, false);
2017                 cur.posForward();
2018                 break;
2019
2020         case LFUN_SEPARATOR_INSERT: {
2021                 doInsertInset(cur, this, cmd, false, false);
2022                 cur.posForward();
2023                 // remove a following space
2024                 Paragraph & par = cur.paragraph();
2025                 if (cur.pos() != cur.lastpos() && par.isLineSeparator(cur.pos()))
2026                     par.eraseChar(cur.pos(), cur.buffer()->params().track_changes);
2027                 break;
2028         }
2029
2030         case LFUN_DEPTH_DECREMENT:
2031                 changeDepth(cur, DEC_DEPTH);
2032                 break;
2033
2034         case LFUN_DEPTH_INCREMENT:
2035                 changeDepth(cur, INC_DEPTH);
2036                 break;
2037
2038         case LFUN_REGEXP_MODE:
2039                 regexpDispatch(cur, cmd);
2040                 break;
2041
2042         case LFUN_MATH_MODE: {
2043                 if (cmd.argument() == "on" || cmd.argument() == "") {
2044                         // don't pass "on" as argument
2045                         // (it would appear literally in the first cell)
2046                         docstring sel = cur.selectionAsString(false);
2047                         InsetMathMacroTemplate * macro = new InsetMathMacroTemplate(cur.buffer());
2048                         // create a macro template if we see "\\newcommand" somewhere, and
2049                         // an ordinary formula otherwise
2050                         if (!sel.empty()
2051                                 && (sel.find(from_ascii("\\newcommand")) != string::npos
2052                                         || sel.find(from_ascii("\\newlyxcommand")) != string::npos
2053                                         || sel.find(from_ascii("\\def")) != string::npos)
2054                                 && macro->fromString(sel)) {
2055                                 cur.recordUndo();
2056                                 replaceSelection(cur);
2057                                 cur.insert(macro);
2058                         } else {
2059                                 // no meaningful macro template was found
2060                                 delete macro;
2061                                 mathDispatch(cur,FuncRequest(LFUN_MATH_MODE));
2062                         }
2063                 } else
2064                         // The argument is meaningful
2065                         // We replace cmd with LFUN_MATH_INSERT because LFUN_MATH_MODE
2066                         // has a different meaning in math mode
2067                         mathDispatch(cur, FuncRequest(LFUN_MATH_INSERT,cmd.argument()));
2068                 break;
2069         }
2070
2071         case LFUN_MATH_MACRO:
2072                 if (cmd.argument().empty())
2073                         cur.errorMessage(from_utf8(N_("Missing argument")));
2074                 else {
2075                         cur.recordUndo();
2076                         string s = to_utf8(cmd.argument());
2077                         string const s1 = token(s, ' ', 1);
2078                         int const nargs = s1.empty() ? 0 : convert<int>(s1);
2079                         string const s2 = token(s, ' ', 2);
2080                         MacroType type = MacroTypeNewcommand;
2081                         if (s2 == "def")
2082                                 type = MacroTypeDef;
2083                         InsetMathMacroTemplate * inset = new InsetMathMacroTemplate(cur.buffer(),
2084                                 from_utf8(token(s, ' ', 0)), nargs, false, type);
2085                         inset->setBuffer(bv->buffer());
2086                         insertInset(cur, inset);
2087
2088                         // enter macro inset and select the name
2089                         cur.push(*inset);
2090                         cur.top().pos() = cur.top().lastpos();
2091                         cur.resetAnchor();
2092                         cur.selection(true);
2093                         cur.top().pos() = 0;
2094                 }
2095                 break;
2096
2097         case LFUN_MATH_DISPLAY:
2098         case LFUN_MATH_SUBSCRIPT:
2099         case LFUN_MATH_SUPERSCRIPT:
2100         case LFUN_MATH_INSERT:
2101         case LFUN_MATH_AMS_MATRIX:
2102         case LFUN_MATH_MATRIX:
2103         case LFUN_MATH_DELIM:
2104         case LFUN_MATH_BIGDELIM:
2105                 mathDispatch(cur, cmd);
2106                 break;
2107
2108         case LFUN_FONT_EMPH: {
2109                 Font font(ignore_font, ignore_language);
2110                 font.fontInfo().setEmph(FONT_TOGGLE);
2111                 toggleAndShow(cur, this, font);
2112                 break;
2113         }
2114
2115         case LFUN_FONT_ITAL: {
2116                 Font font(ignore_font, ignore_language);
2117                 font.fontInfo().setShape(ITALIC_SHAPE);
2118                 toggleAndShow(cur, this, font);
2119                 break;
2120         }
2121
2122         case LFUN_FONT_BOLD:
2123         case LFUN_FONT_BOLDSYMBOL: {
2124                 Font font(ignore_font, ignore_language);
2125                 font.fontInfo().setSeries(BOLD_SERIES);
2126                 toggleAndShow(cur, this, font);
2127                 break;
2128         }
2129
2130         case LFUN_FONT_NOUN: {
2131                 Font font(ignore_font, ignore_language);
2132                 font.fontInfo().setNoun(FONT_TOGGLE);
2133                 toggleAndShow(cur, this, font);
2134                 break;
2135         }
2136
2137         case LFUN_FONT_TYPEWRITER: {
2138                 Font font(ignore_font, ignore_language);
2139                 font.fontInfo().setFamily(TYPEWRITER_FAMILY); // no good
2140                 toggleAndShow(cur, this, font);
2141                 break;
2142         }
2143
2144         case LFUN_FONT_SANS: {
2145                 Font font(ignore_font, ignore_language);
2146                 font.fontInfo().setFamily(SANS_FAMILY);
2147                 toggleAndShow(cur, this, font);
2148                 break;
2149         }
2150
2151         case LFUN_FONT_ROMAN: {
2152                 Font font(ignore_font, ignore_language);
2153                 font.fontInfo().setFamily(ROMAN_FAMILY);
2154                 toggleAndShow(cur, this, font);
2155                 break;
2156         }
2157
2158         case LFUN_FONT_DEFAULT: {
2159                 Font font(inherit_font, ignore_language);
2160                 toggleAndShow(cur, this, font);
2161                 break;
2162         }
2163
2164         case LFUN_FONT_STRIKEOUT: {
2165                 Font font(ignore_font, ignore_language);
2166                 font.fontInfo().setStrikeout(FONT_TOGGLE);
2167                 toggleAndShow(cur, this, font);
2168                 break;
2169         }
2170
2171         case LFUN_FONT_CROSSOUT: {
2172                 Font font(ignore_font, ignore_language);
2173                 font.fontInfo().setXout(FONT_TOGGLE);
2174                 toggleAndShow(cur, this, font);
2175                 break;
2176         }
2177
2178         case LFUN_FONT_UNDERUNDERLINE: {
2179                 Font font(ignore_font, ignore_language);
2180                 font.fontInfo().setUuline(FONT_TOGGLE);
2181                 toggleAndShow(cur, this, font);
2182                 break;
2183         }
2184
2185         case LFUN_FONT_UNDERWAVE: {
2186                 Font font(ignore_font, ignore_language);
2187                 font.fontInfo().setUwave(FONT_TOGGLE);
2188                 toggleAndShow(cur, this, font);
2189                 break;
2190         }
2191
2192         case LFUN_FONT_UNDERLINE: {
2193                 Font font(ignore_font, ignore_language);
2194                 font.fontInfo().setUnderbar(FONT_TOGGLE);
2195                 toggleAndShow(cur, this, font);
2196                 break;
2197         }
2198
2199         case LFUN_FONT_SIZE: {
2200                 Font font(ignore_font, ignore_language);
2201                 setLyXSize(to_utf8(cmd.argument()), font.fontInfo());
2202                 toggleAndShow(cur, this, font);
2203                 break;
2204         }
2205
2206         case LFUN_LANGUAGE: {
2207                 string const lang_arg = cmd.getArg(0);
2208                 bool const reset = (lang_arg.empty() || lang_arg == "reset");
2209                 Language const * lang =
2210                         reset ? reset_language
2211                               : languages.getLanguage(lang_arg);
2212                 // we allow reset_language, which is 0, but only if it
2213                 // was requested via empty or "reset" arg.
2214                 if (!lang && !reset)
2215                         break;
2216                 bool const toggle = (cmd.getArg(1) != "set");
2217                 selectWordWhenUnderCursor(cur, WHOLE_WORD_STRICT);
2218                 Font font(ignore_font, lang);
2219                 toggleAndShow(cur, this, font, toggle);
2220                 break;
2221         }
2222
2223         case LFUN_TEXTSTYLE_APPLY:
2224                 toggleAndShow(cur, this, freefont, toggleall);
2225                 cur.message(_("Character set"));
2226                 break;
2227
2228         // Set the freefont using the contents of \param data dispatched from
2229         // the frontends and apply it at the current cursor location.
2230         case LFUN_TEXTSTYLE_UPDATE: {
2231                 Font font;
2232                 bool toggle;
2233                 if (font.fromString(to_utf8(cmd.argument()), toggle)) {
2234                         freefont = font;
2235                         toggleall = toggle;
2236                         toggleAndShow(cur, this, freefont, toggleall);
2237                         cur.message(_("Character set"));
2238                 } else {
2239                         lyxerr << "Argument not ok";
2240                 }
2241                 break;
2242         }
2243
2244         case LFUN_FINISHED_LEFT:
2245                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_LEFT:\n" << cur);
2246                 // We're leaving an inset, going left. If the inset is LTR, we're
2247                 // leaving from the front, so we should not move (remain at --- but
2248                 // not in --- the inset). If the inset is RTL, move left, without
2249                 // entering the inset itself; i.e., move to after the inset.
2250                 if (cur.paragraph().getFontSettings(
2251                                 cur.bv().buffer().params(), cur.pos()).isRightToLeft())
2252                         cursorVisLeft(cur, true);
2253                 break;
2254
2255         case LFUN_FINISHED_RIGHT:
2256                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_RIGHT:\n" << cur);
2257                 // We're leaving an inset, going right. If the inset is RTL, we're
2258                 // leaving from the front, so we should not move (remain at --- but
2259                 // not in --- the inset). If the inset is LTR, move right, without
2260                 // entering the inset itself; i.e., move to after the inset.
2261                 if (!cur.paragraph().getFontSettings(
2262                                 cur.bv().buffer().params(), cur.pos()).isRightToLeft())
2263                         cursorVisRight(cur, true);
2264                 break;
2265
2266         case LFUN_FINISHED_BACKWARD:
2267                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_BACKWARD:\n" << cur);
2268                 cur.setCurrentFont();
2269                 break;
2270
2271         case LFUN_FINISHED_FORWARD:
2272                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_FORWARD:\n" << cur);
2273                 ++cur.pos();
2274                 cur.setCurrentFont();
2275                 break;
2276
2277         case LFUN_LAYOUT_PARAGRAPH: {
2278                 string data;
2279                 params2string(cur.paragraph(), data);
2280                 data = "show\n" + data;
2281                 bv->showDialog("paragraph", data);
2282                 break;
2283         }
2284
2285         case LFUN_PARAGRAPH_UPDATE: {
2286                 string data;
2287                 params2string(cur.paragraph(), data);
2288
2289                 // Will the paragraph accept changes from the dialog?
2290                 bool const accept =
2291                         cur.inset().allowParagraphCustomization(cur.idx());
2292
2293                 data = "update " + convert<string>(accept) + '\n' + data;
2294                 bv->updateDialog("paragraph", data);
2295                 break;
2296         }
2297
2298         case LFUN_ACCENT_UMLAUT:
2299         case LFUN_ACCENT_CIRCUMFLEX:
2300         case LFUN_ACCENT_GRAVE:
2301         case LFUN_ACCENT_ACUTE:
2302         case LFUN_ACCENT_TILDE:
2303         case LFUN_ACCENT_PERISPOMENI:
2304         case LFUN_ACCENT_CEDILLA:
2305         case LFUN_ACCENT_MACRON:
2306         case LFUN_ACCENT_DOT:
2307         case LFUN_ACCENT_UNDERDOT:
2308         case LFUN_ACCENT_UNDERBAR:
2309         case LFUN_ACCENT_CARON:
2310         case LFUN_ACCENT_BREVE:
2311         case LFUN_ACCENT_TIE:
2312         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
2313         case LFUN_ACCENT_CIRCLE:
2314         case LFUN_ACCENT_OGONEK:
2315                 theApp()->handleKeyFunc(cmd.action());
2316                 if (!cmd.argument().empty())
2317                         // FIXME: Are all these characters encoded in one byte in utf8?
2318                         bv->translateAndInsert(cmd.argument()[0], this, cur);
2319                 cur.screenUpdateFlags(Update::FitCursor);
2320                 break;
2321
2322         case LFUN_FLOAT_LIST_INSERT: {
2323                 DocumentClass const & tclass = bv->buffer().params().documentClass();
2324                 if (tclass.floats().typeExist(to_utf8(cmd.argument()))) {
2325                         cur.recordUndo();
2326                         if (cur.selection())
2327                                 cutSelection(cur, true, false);
2328                         breakParagraph(cur);
2329
2330                         if (cur.lastpos() != 0) {
2331                                 cursorBackward(cur);
2332                                 breakParagraph(cur);
2333                         }
2334
2335                         docstring const laystr = cur.inset().usePlainLayout() ?
2336                                 tclass.plainLayoutName() :
2337                                 tclass.defaultLayoutName();
2338                         setLayout(cur, laystr);
2339                         ParagraphParameters p;
2340                         // FIXME If this call were replaced with one to clearParagraphParams(),
2341                         // then we could get rid of this method altogether.
2342                         setParagraphs(cur, p);
2343                         // FIXME This should be simplified when InsetFloatList takes a
2344                         // Buffer in its constructor.
2345                         InsetFloatList * ifl = new InsetFloatList(cur.buffer(), to_utf8(cmd.argument()));
2346                         ifl->setBuffer(bv->buffer());
2347                         insertInset(cur, ifl);
2348                         cur.posForward();
2349                 } else {
2350                         lyxerr << "Non-existent float type: "
2351                                << to_utf8(cmd.argument()) << endl;
2352                 }
2353                 break;
2354         }
2355
2356         case LFUN_CHANGE_ACCEPT: {
2357                 acceptOrRejectChanges(cur, ACCEPT);
2358                 break;
2359         }
2360
2361         case LFUN_CHANGE_REJECT: {
2362                 acceptOrRejectChanges(cur, REJECT);
2363                 break;
2364         }
2365
2366         case LFUN_THESAURUS_ENTRY: {
2367                 Language const * language = cur.getFont().language();
2368                 docstring arg = cmd.argument();
2369                 if (arg.empty()) {
2370                         arg = cur.selectionAsString(false);
2371                         // FIXME
2372                         if (arg.size() > 100 || arg.empty()) {
2373                                 // Get word or selection
2374                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2375                                 arg = cur.selectionAsString(false);
2376                                 arg += " lang=" + from_ascii(language->lang());
2377                         }
2378                 } else {
2379                         string lang = cmd.getArg(1);
2380                         // This duplicates the code in GuiThesaurus::initialiseParams
2381                         if (prefixIs(lang, "lang=")) {
2382                                 language = languages.getLanguage(lang.substr(5));
2383                                 if (!language)
2384                                         language = cur.getFont().language();
2385                         }
2386                 }
2387                 string lang = language->code();
2388                 if (lyxrc.thesaurusdir_path.empty() && !thesaurus.thesaurusInstalled(from_ascii(lang))) {
2389                         LYXERR(Debug::ACTION, "Command " << cmd << ". Thesaurus not found for language " << lang);
2390                         frontend::Alert::warning(_("Path to thesaurus directory not set!"),
2391                                         _("The path to the thesaurus directory has not been specified.\n"
2392                                           "The thesaurus is not functional.\n"
2393                                           "Please refer to sec. 6.15.1 of the User's Guide for setup\n"
2394                                           "instructions."));
2395                 }
2396                 bv->showDialog("thesaurus", to_utf8(arg));
2397                 break;
2398         }
2399
2400         case LFUN_SPELLING_ADD: {
2401                 Language const * language = getLanguage(cur, cmd.getArg(1));
2402                 docstring word = from_utf8(cmd.getArg(0));
2403                 if (word.empty()) {
2404                         word = cur.selectionAsString(false);
2405                         // FIXME
2406                         if (word.size() > 100 || word.empty()) {
2407                                 // Get word or selection
2408                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2409                                 word = cur.selectionAsString(false);
2410                         }
2411                 }
2412                 WordLangTuple wl(word, language);
2413                 theSpellChecker()->insert(wl);
2414                 break;
2415         }
2416
2417         case LFUN_SPELLING_IGNORE: {
2418                 Language const * language = getLanguage(cur, cmd.getArg(1));
2419                 docstring word = from_utf8(cmd.getArg(0));
2420                 if (word.empty()) {
2421                         word = cur.selectionAsString(false);
2422                         // FIXME
2423                         if (word.size() > 100 || word.empty()) {
2424                                 // Get word or selection
2425                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2426                                 word = cur.selectionAsString(false);
2427                         }
2428                 }
2429                 WordLangTuple wl(word, language);
2430                 theSpellChecker()->accept(wl);
2431                 break;
2432         }
2433
2434         case LFUN_SPELLING_REMOVE: {
2435                 Language const * language = getLanguage(cur, cmd.getArg(1));
2436                 docstring word = from_utf8(cmd.getArg(0));
2437                 if (word.empty()) {
2438                         word = cur.selectionAsString(false);
2439                         // FIXME
2440                         if (word.size() > 100 || word.empty()) {
2441                                 // Get word or selection
2442                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2443                                 word = cur.selectionAsString(false);
2444                         }
2445                 }
2446                 WordLangTuple wl(word, language);
2447                 theSpellChecker()->remove(wl);
2448                 break;
2449         }
2450
2451         case LFUN_PARAGRAPH_PARAMS_APPLY: {
2452                 // Given data, an encoding of the ParagraphParameters
2453                 // generated in the Paragraph dialog, this function sets
2454                 // the current paragraph, or currently selected paragraphs,
2455                 // appropriately.
2456                 // NOTE: This function overrides all existing settings.
2457                 setParagraphs(cur, cmd.argument());
2458                 cur.message(_("Paragraph layout set"));
2459                 break;
2460         }
2461
2462         case LFUN_PARAGRAPH_PARAMS: {
2463                 // Given data, an encoding of the ParagraphParameters as we'd
2464                 // find them in a LyX file, this function modifies the current paragraph,
2465                 // or currently selected paragraphs.
2466                 // NOTE: This function only modifies, and does not override, existing
2467                 // settings.
2468                 setParagraphs(cur, cmd.argument(), true);
2469                 cur.message(_("Paragraph layout set"));
2470                 break;
2471         }
2472
2473         case LFUN_ESCAPE:
2474                 if (cur.selection()) {
2475                         cur.selection(false);
2476                 } else {
2477                         cur.undispatched();
2478                         // This used to be LFUN_FINISHED_RIGHT, I think FORWARD is more
2479                         // correct, but I'm not 100% sure -- dov, 071019
2480                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
2481                 }
2482                 break;
2483
2484         case LFUN_OUTLINE_UP:
2485                 outline(OutlineUp, cur);
2486                 setCursor(cur, cur.pit(), 0);
2487                 cur.forceBufferUpdate();
2488                 needsUpdate = true;
2489                 break;
2490
2491         case LFUN_OUTLINE_DOWN:
2492                 outline(OutlineDown, cur);
2493                 setCursor(cur, cur.pit(), 0);
2494                 cur.forceBufferUpdate();
2495                 needsUpdate = true;
2496                 break;
2497
2498         case LFUN_OUTLINE_IN:
2499                 outline(OutlineIn, cur);
2500                 cur.forceBufferUpdate();
2501                 needsUpdate = true;
2502                 break;
2503
2504         case LFUN_OUTLINE_OUT:
2505                 outline(OutlineOut, cur);
2506                 cur.forceBufferUpdate();
2507                 needsUpdate = true;
2508                 break;
2509
2510         case LFUN_SERVER_GET_STATISTICS:
2511                 {
2512                         DocIterator from, to;
2513                         if (cur.selection()) {
2514                                 from = cur.selectionBegin();
2515                                 to = cur.selectionEnd();
2516                         } else {
2517                                 from = doc_iterator_begin(cur.buffer());
2518                                 to = doc_iterator_end(cur.buffer());
2519                         }
2520
2521                         cur.buffer()->updateStatistics(from, to);
2522                         string const arg0 = cmd.getArg(0);
2523                         if (arg0 == "words") {
2524                                 cur.message(convert<docstring>(cur.buffer()->wordCount()));
2525                         } else if (arg0 == "chars") {
2526                                 cur.message(convert<docstring>(cur.buffer()->charCount(false)));
2527                         } else if (arg0 == "chars-space") {
2528                                 cur.message(convert<docstring>(cur.buffer()->charCount(true)));
2529                         } else {
2530                                 cur.message(convert<docstring>(cur.buffer()->wordCount()) + " "
2531                                 + convert<docstring>(cur.buffer()->charCount(false)) + " "
2532                                 + convert<docstring>(cur.buffer()->charCount(true)));
2533                         }
2534                 }
2535                 break;
2536
2537         default:
2538                 LYXERR(Debug::ACTION, "Command " << cmd << " not DISPATCHED by Text");
2539                 cur.undispatched();
2540                 break;
2541         }
2542
2543         needsUpdate |= (cur.pos() != cur.lastpos()) && cur.selection();
2544
2545         if (lyxrc.spellcheck_continuously && !needsUpdate) {
2546                 // Check for misspelled text
2547                 // The redraw is useful because of the painting of
2548                 // misspelled markers depends on the cursor position.
2549                 // Trigger a redraw for cursor moves inside misspelled text.
2550                 if (!cur.inTexted()) {
2551                         // move from regular text to math
2552                         needsUpdate = last_misspelled;
2553                 } else if (oldTopSlice != cur.top() || oldBoundary != cur.boundary()) {
2554                         // move inside regular text
2555                         needsUpdate = last_misspelled
2556                                 || cur.paragraph().isMisspelled(cur.pos(), true);
2557                 }
2558         }
2559
2560         // FIXME: The cursor flag is reset two lines below
2561         // so we need to check here if some of the LFUN did touch that.
2562         // for now only Text::erase() and Text::backspace() do that.
2563         // The plan is to verify all the LFUNs and then to remove this
2564         // singleParUpdate boolean altogether.
2565         if (cur.result().screenUpdate() & Update::Force) {
2566                 singleParUpdate = false;
2567                 needsUpdate = true;
2568         }
2569
2570         // FIXME: the following code should go in favor of fine grained
2571         // update flag treatment.
2572         if (singleParUpdate) {
2573                 // Inserting characters does not change par height in general. So, try
2574                 // to update _only_ this paragraph. BufferView will detect if a full
2575                 // metrics update is needed anyway.
2576                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
2577                 return;
2578         }
2579         if (!needsUpdate
2580             && &oldTopSlice.inset() == &cur.inset()
2581             && oldTopSlice.idx() == cur.idx()
2582             && !oldSelection // oldSelection is a backup of cur.selection() at the beginning of the function.
2583             && !cur.selection())
2584                 // FIXME: it would be better if we could just do this
2585                 //
2586                 //if (cur.result().update() != Update::FitCursor)
2587                 //      cur.noScreenUpdate();
2588                 //
2589                 // But some LFUNs do not set Update::FitCursor when needed, so we
2590                 // do it for all. This is not very harmfull as FitCursor will provoke
2591                 // a full redraw only if needed but still, a proper review of all LFUN
2592                 // should be done and this needsUpdate boolean can then be removed.
2593                 cur.screenUpdateFlags(Update::FitCursor);
2594         else
2595                 cur.screenUpdateFlags(Update::Force | Update::FitCursor);
2596 }
2597
2598
2599 bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
2600                         FuncStatus & flag) const
2601 {
2602         LBUFERR(this == cur.text());
2603
2604         FontInfo const & fontinfo = cur.real_current_font.fontInfo();
2605         bool enable = true;
2606         bool allow_in_passthru = false;
2607         InsetCode code = NO_CODE;
2608
2609         switch (cmd.action()) {
2610
2611         case LFUN_DEPTH_DECREMENT:
2612                 enable = changeDepthAllowed(cur, DEC_DEPTH);
2613                 break;
2614
2615         case LFUN_DEPTH_INCREMENT:
2616                 enable = changeDepthAllowed(cur, INC_DEPTH);
2617                 break;
2618
2619         case LFUN_APPENDIX:
2620                 // FIXME We really should not allow this to be put, e.g.,
2621                 // in a footnote, or in ERT. But it would make sense in a
2622                 // branch, so I'm not sure what to do.
2623                 flag.setOnOff(cur.paragraph().params().startOfAppendix());
2624                 break;
2625
2626         case LFUN_DIALOG_SHOW_NEW_INSET:
2627                 if (cmd.argument() == "bibitem")
2628                         code = BIBITEM_CODE;
2629                 else if (cmd.argument() == "bibtex") {
2630                         code = BIBTEX_CODE;
2631                         // not allowed in description items
2632                         enable = !inDescriptionItem(cur);
2633                 }
2634                 else if (cmd.argument() == "box")
2635                         code = BOX_CODE;
2636                 else if (cmd.argument() == "branch")
2637                         code = BRANCH_CODE;
2638                 else if (cmd.argument() == "citation")
2639                         code = CITE_CODE;
2640                 else if (cmd.argument() == "ert")
2641                         code = ERT_CODE;
2642                 else if (cmd.argument() == "external")
2643                         code = EXTERNAL_CODE;
2644                 else if (cmd.argument() == "float")
2645                         code = FLOAT_CODE;
2646                 else if (cmd.argument() == "graphics")
2647                         code = GRAPHICS_CODE;
2648                 else if (cmd.argument() == "href")
2649                         code = HYPERLINK_CODE;
2650                 else if (cmd.argument() == "include")
2651                         code = INCLUDE_CODE;
2652                 else if (cmd.argument() == "index")
2653                         code = INDEX_CODE;
2654                 else if (cmd.argument() == "index_print")
2655                         code = INDEX_PRINT_CODE;
2656                 else if (cmd.argument() == "listings")
2657                         code = LISTINGS_CODE;
2658                 else if (cmd.argument() == "mathspace")
2659                         code = MATH_HULL_CODE;
2660                 else if (cmd.argument() == "nomenclature")
2661                         code = NOMENCL_CODE;
2662                 else if (cmd.argument() == "nomencl_print")
2663                         code = NOMENCL_PRINT_CODE;
2664                 else if (cmd.argument() == "label")
2665                         code = LABEL_CODE;
2666                 else if (cmd.argument() == "line")
2667                         code = LINE_CODE;
2668                 else if (cmd.argument() == "note")
2669                         code = NOTE_CODE;
2670                 else if (cmd.argument() == "phantom")
2671                         code = PHANTOM_CODE;
2672                 else if (cmd.argument() == "ref")
2673                         code = REF_CODE;
2674                 else if (cmd.argument() == "space")
2675                         code = SPACE_CODE;
2676                 else if (cmd.argument() == "toc")
2677                         code = TOC_CODE;
2678                 else if (cmd.argument() == "vspace")
2679                         code = VSPACE_CODE;
2680                 else if (cmd.argument() == "wrap")
2681                         code = WRAP_CODE;
2682                 break;
2683
2684         case LFUN_ERT_INSERT:
2685                 code = ERT_CODE;
2686                 break;
2687         case LFUN_LISTING_INSERT:
2688                 code = LISTINGS_CODE;
2689                 // not allowed in description items
2690                 enable = !inDescriptionItem(cur);
2691                 break;
2692         case LFUN_FOOTNOTE_INSERT:
2693                 code = FOOT_CODE;
2694                 break;
2695         case LFUN_TABULAR_INSERT:
2696                 code = TABULAR_CODE;
2697                 break;
2698         case LFUN_MARGINALNOTE_INSERT:
2699                 code = MARGIN_CODE;
2700                 break;
2701         case LFUN_FLOAT_INSERT:
2702         case LFUN_FLOAT_WIDE_INSERT:
2703                 // FIXME: If there is a selection, we should check whether there
2704                 // are floats in the selection, but this has performance issues, see
2705                 // LFUN_CHANGE_ACCEPT/REJECT.
2706                 code = FLOAT_CODE;
2707                 if (inDescriptionItem(cur))
2708                         // not allowed in description items
2709                         enable = false;
2710                 else {
2711                         InsetCode const inset_code = cur.inset().lyxCode();
2712
2713                         // algorithm floats cannot be put in another float
2714                         if (to_utf8(cmd.argument()) == "algorithm") {
2715                                 enable = inset_code != WRAP_CODE && inset_code != FLOAT_CODE;
2716                                 break;
2717                         }
2718
2719                         // for figures and tables: only allow in another
2720                         // float or wrap if it is of the same type and
2721                         // not a subfloat already
2722                         if(cur.inset().lyxCode() == code) {
2723                                 InsetFloat const & ins =
2724                                         static_cast<InsetFloat const &>(cur.inset());
2725                                 enable = ins.params().type == to_utf8(cmd.argument())
2726                                         && !ins.params().subfloat;
2727                         } else if(cur.inset().lyxCode() == WRAP_CODE) {
2728                                 InsetWrap const & ins =
2729                                         static_cast<InsetWrap const &>(cur.inset());
2730                                 enable = ins.params().type == to_utf8(cmd.argument());
2731                         }
2732                 }
2733                 break;
2734         case LFUN_WRAP_INSERT:
2735                 code = WRAP_CODE;
2736                 // not allowed in description items
2737                 enable = !inDescriptionItem(cur);
2738                 break;
2739         case LFUN_FLOAT_LIST_INSERT: {
2740                 code = FLOAT_LIST_CODE;
2741                 // not allowed in description items
2742                 enable = !inDescriptionItem(cur);
2743                 if (enable) {
2744                         FloatList const & floats = cur.buffer()->params().documentClass().floats();
2745                         FloatList::const_iterator cit = floats[to_ascii(cmd.argument())];
2746                         // make sure we know about such floats
2747                         if (cit == floats.end() ||
2748                                         // and that we know how to generate a list of them
2749                             (!cit->second.usesFloatPkg() && cit->second.listCommand().empty())) {
2750                                 flag.setUnknown(true);
2751                                 // probably not necessary, but...
2752                                 enable = false;
2753                         }
2754                 }
2755                 break;
2756         }
2757         case LFUN_CAPTION_INSERT: {
2758                 code = CAPTION_CODE;
2759                 string arg = cmd.getArg(0);
2760                 bool varia = arg != "Unnumbered"
2761                         && cur.inset().allowsCaptionVariation(arg);
2762                 // not allowed in description items,
2763                 // and in specific insets
2764                 enable = !inDescriptionItem(cur)
2765                         && (varia || arg.empty() || arg == "Standard");
2766                 break;
2767         }
2768         case LFUN_NOTE_INSERT:
2769                 code = NOTE_CODE;
2770                 // in commands (sections etc.) and description items,
2771                 // only Notes are allowed
2772                 enable = (cmd.argument().empty() || cmd.getArg(0) == "Note" ||
2773                           (!cur.paragraph().layout().isCommand()
2774                            && !inDescriptionItem(cur)));
2775                 break;
2776         case LFUN_FLEX_INSERT: {
2777                 code = FLEX_CODE;
2778                 string s = cmd.getArg(0);
2779                 InsetLayout il =
2780                         cur.buffer()->params().documentClass().insetLayout(from_utf8(s));
2781                 if (il.lyxtype() != InsetLayout::CHARSTYLE &&
2782                     il.lyxtype() != InsetLayout::CUSTOM &&
2783                     il.lyxtype() != InsetLayout::ELEMENT &&
2784                     il.lyxtype ()!= InsetLayout::STANDARD)
2785                         enable = false;
2786                 break;
2787                 }
2788         case LFUN_BOX_INSERT:
2789                 code = BOX_CODE;
2790                 break;
2791         case LFUN_BRANCH_INSERT:
2792                 code = BRANCH_CODE;
2793                 if (cur.buffer()->masterBuffer()->params().branchlist().empty()
2794                     && cur.buffer()->params().branchlist().empty())
2795                         enable = false;
2796                 break;
2797         case LFUN_IPA_INSERT:
2798                 code = IPA_CODE;
2799                 break;
2800         case LFUN_PHANTOM_INSERT:
2801                 code = PHANTOM_CODE;
2802                 break;
2803         case LFUN_LABEL_INSERT:
2804                 code = LABEL_CODE;
2805                 break;
2806         case LFUN_INFO_INSERT:
2807                 code = INFO_CODE;
2808                 break;
2809         case LFUN_ARGUMENT_INSERT: {
2810                 code = ARG_CODE;
2811                 allow_in_passthru = true;
2812                 string const arg = cmd.getArg(0);
2813                 if (arg.empty()) {
2814                         enable = false;
2815                         break;
2816                 }
2817                 Layout const & lay = cur.paragraph().layout();
2818                 Layout::LaTeXArgMap args = lay.args();
2819                 Layout::LaTeXArgMap::const_iterator const lait =
2820                                 args.find(arg);
2821                 if (lait != args.end()) {
2822                         enable = true;
2823                         pit_type pit = cur.pit();
2824                         pit_type lastpit = cur.pit();
2825                         if (lay.isEnvironment() && !prefixIs(arg, "item:")) {
2826                                 // In a sequence of "merged" environment layouts, we only allow
2827                                 // non-item arguments once.
2828                                 lastpit = cur.lastpit();
2829                                 // get the first paragraph in sequence with this layout
2830                                 depth_type const current_depth = cur.paragraph().params().depth();
2831                                 while (true) {
2832                                         if (pit == 0)
2833                                                 break;
2834                                         Paragraph cpar = pars_[pit - 1];
2835                                         if (cpar.layout() == lay && cpar.params().depth() == current_depth)
2836                                                 --pit;
2837                                         else
2838                                                 break;
2839                                 }
2840                         }
2841                         for (; pit <= lastpit; ++pit) {
2842                                 if (pars_[pit].layout() != lay)
2843                                         break;
2844                                 for (auto const & table : pars_[pit].insetList())
2845                                         if (InsetArgument const * ins = table.inset->asInsetArgument())
2846                                                 if (ins->name() == arg) {
2847                                                         // we have this already
2848                                                         enable = false;
2849                                                         break;
2850                                                 }
2851                         }
2852                 } else
2853                         enable = false;
2854                 break;
2855         }
2856         case LFUN_INDEX_INSERT:
2857                 code = INDEX_CODE;
2858                 break;
2859         case LFUN_INDEX_PRINT:
2860                 code = INDEX_PRINT_CODE;
2861                 // not allowed in description items
2862                 enable = !inDescriptionItem(cur);
2863                 break;
2864         case LFUN_NOMENCL_INSERT:
2865                 if (cur.selIsMultiCell() || cur.selIsMultiLine()) {
2866                         enable = false;
2867                         break;
2868                 }
2869                 code = NOMENCL_CODE;
2870                 break;
2871         case LFUN_NOMENCL_PRINT:
2872                 code = NOMENCL_PRINT_CODE;
2873                 // not allowed in description items
2874                 enable = !inDescriptionItem(cur);
2875                 break;
2876         case LFUN_HREF_INSERT:
2877                 if (cur.selIsMultiCell() || cur.selIsMultiLine()) {
2878                         enable = false;
2879                         break;
2880                 }
2881                 code = HYPERLINK_CODE;
2882                 break;
2883         case LFUN_IPAMACRO_INSERT: {
2884                 string const arg = cmd.getArg(0);
2885                 if (arg == "deco")
2886                         code = IPADECO_CODE;
2887                 else
2888                         code = IPACHAR_CODE;
2889                 break;
2890         }
2891         case LFUN_QUOTE_INSERT:
2892                 // always allow this, since we will inset a raw quote
2893                 // if an inset is not allowed.
2894                 allow_in_passthru = true;
2895                 break;
2896         case LFUN_SPECIALCHAR_INSERT:
2897                 code = SPECIALCHAR_CODE;
2898                 break;
2899         case LFUN_SPACE_INSERT:
2900                 // slight hack: we know this is allowed in math mode
2901                 if (cur.inTexted())
2902                         code = SPACE_CODE;
2903                 break;
2904         case LFUN_PREVIEW_INSERT:
2905                 code = PREVIEW_CODE;
2906                 break;
2907         case LFUN_SCRIPT_INSERT:
2908                 code = SCRIPT_CODE;
2909                 break;
2910
2911         case LFUN_MATH_INSERT:
2912         case LFUN_MATH_AMS_MATRIX:
2913         case LFUN_MATH_MATRIX:
2914         case LFUN_MATH_DELIM:
2915         case LFUN_MATH_BIGDELIM:
2916         case LFUN_MATH_DISPLAY:
2917         case LFUN_MATH_MODE:
2918         case LFUN_MATH_MACRO:
2919         case LFUN_MATH_SUBSCRIPT:
2920         case LFUN_MATH_SUPERSCRIPT:
2921                 code = MATH_HULL_CODE;
2922                 break;
2923
2924         case LFUN_REGEXP_MODE:
2925                 code = MATH_HULL_CODE;
2926                 enable = cur.buffer()->isInternal() && !cur.inRegexped();
2927                 break;
2928
2929         case LFUN_INSET_MODIFY:
2930                 // We need to disable this, because we may get called for a
2931                 // tabular cell via
2932                 // InsetTabular::getStatus() -> InsetText::getStatus()
2933                 // and we don't handle LFUN_INSET_MODIFY.
2934                 enable = false;
2935                 break;
2936
2937         case LFUN_FONT_EMPH:
2938                 flag.setOnOff(fontinfo.emph() == FONT_ON);
2939                 enable = !cur.paragraph().isPassThru();
2940                 break;
2941
2942         case LFUN_FONT_ITAL:
2943                 flag.setOnOff(fontinfo.shape() == ITALIC_SHAPE);
2944                 enable = !cur.paragraph().isPassThru();
2945                 break;
2946
2947         case LFUN_FONT_NOUN:
2948                 flag.setOnOff(fontinfo.noun() == FONT_ON);
2949                 enable = !cur.paragraph().isPassThru();
2950                 break;
2951
2952         case LFUN_FONT_BOLD:
2953         case LFUN_FONT_BOLDSYMBOL:
2954                 flag.setOnOff(fontinfo.series() == BOLD_SERIES);
2955                 enable = !cur.paragraph().isPassThru();
2956                 break;
2957
2958         case LFUN_FONT_SANS:
2959                 flag.setOnOff(fontinfo.family() == SANS_FAMILY);
2960                 enable = !cur.paragraph().isPassThru();
2961                 break;
2962
2963         case LFUN_FONT_ROMAN:
2964                 flag.setOnOff(fontinfo.family() == ROMAN_FAMILY);
2965                 enable = !cur.paragraph().isPassThru();
2966                 break;
2967
2968         case LFUN_FONT_TYPEWRITER:
2969                 flag.setOnOff(fontinfo.family() == TYPEWRITER_FAMILY);
2970                 enable = !cur.paragraph().isPassThru();
2971                 break;
2972
2973         case LFUN_CUT:
2974         case LFUN_COPY:
2975                 enable = cur.selection();
2976                 break;
2977
2978         case LFUN_PASTE: {
2979                 if (cmd.argument().empty()) {
2980                         if (theClipboard().isInternal())
2981                                 enable = cap::numberOfSelections() > 0;
2982                         else
2983                                 enable = !theClipboard().empty();
2984                         break;
2985                 }
2986
2987                 // we have an argument
2988                 string const arg = to_utf8(cmd.argument());
2989                 if (isStrUnsignedInt(arg)) {
2990                         // it's a number and therefore means the internal stack
2991                         unsigned int n = convert<unsigned int>(arg);
2992                         enable = cap::numberOfSelections() > n;
2993                         break;
2994                 }
2995
2996                 // explicit text type?
2997                 if (arg == "html") {
2998                         // Do not enable for PlainTextType, since some tidying in the
2999                         // frontend is needed for HTML, which is too unsafe for plain text.
3000                         enable = theClipboard().hasTextContents(Clipboard::HtmlTextType);
3001                         break;
3002                 } else if (arg == "latex") {
3003                         // LaTeX is usually not available on the clipboard with
3004                         // the correct MIME type, but in plain text.
3005                         enable = theClipboard().hasTextContents(Clipboard::PlainTextType) ||
3006                                  theClipboard().hasTextContents(Clipboard::LaTeXTextType);
3007                         break;
3008                 }
3009
3010                 Clipboard::GraphicsType type = Clipboard::AnyGraphicsType;
3011                 if (arg == "pdf")
3012                         type = Clipboard::PdfGraphicsType;
3013                 else if (arg == "png")
3014                         type = Clipboard::PngGraphicsType;
3015                 else if (arg == "jpeg")
3016                         type = Clipboard::JpegGraphicsType;
3017                 else if (arg == "linkback")
3018                         type = Clipboard::LinkBackGraphicsType;
3019                 else if (arg == "emf")
3020                         type = Clipboard::EmfGraphicsType;
3021                 else if (arg == "wmf")
3022                         type = Clipboard::WmfGraphicsType;
3023                 else {
3024                         // unknown argument
3025                         LYXERR0("Unrecognized graphics type: " << arg);
3026                         // we don't want to assert if the user just mistyped the LFUN
3027                         LATTEST(cmd.origin() != FuncRequest::INTERNAL);
3028                         enable = false;
3029                         break;
3030                 }
3031                 enable = theClipboard().hasGraphicsContents(type);
3032                 break;
3033         }
3034
3035         case LFUN_CLIPBOARD_PASTE:
3036         case LFUN_CLIPBOARD_PASTE_SIMPLE:
3037                 enable = !theClipboard().empty();
3038                 break;
3039
3040         case LFUN_PRIMARY_SELECTION_PASTE:
3041                 enable = cur.selection() || !theSelection().empty();
3042                 break;
3043
3044         case LFUN_SELECTION_PASTE:
3045                 enable = cap::selection();
3046                 break;
3047
3048         case LFUN_PARAGRAPH_MOVE_UP:
3049                 enable = cur.pit() > 0 && !cur.selection();
3050                 break;
3051
3052         case LFUN_PARAGRAPH_MOVE_DOWN:
3053                 enable = cur.pit() < cur.lastpit() && !cur.selection();
3054                 break;
3055
3056         case LFUN_CHANGE_ACCEPT:
3057         case LFUN_CHANGE_REJECT:
3058                 // In principle, these LFUNs should only be enabled if there
3059                 // is a change at the current position/in the current selection.
3060                 // However, without proper optimizations, this will inevitably
3061                 // result in unacceptable performance - just imagine a user who
3062                 // wants to select the complete content of a long document.
3063                 if (!cur.selection())
3064                         enable = cur.paragraph().isChanged(cur.pos());
3065                 else
3066                         // TODO: context-sensitive enabling of LFUN_CHANGE_ACCEPT/REJECT
3067                         // for selections.
3068                         enable = true;
3069                 break;
3070
3071         case LFUN_OUTLINE_UP:
3072         case LFUN_OUTLINE_DOWN:
3073         case LFUN_OUTLINE_IN:
3074         case LFUN_OUTLINE_OUT:
3075                 // FIXME: LyX is not ready for outlining within inset.
3076                 enable = isMainText()
3077                         && cur.buffer()->text().getTocLevel(cur.pit()) != Layout::NOT_IN_TOC;
3078                 break;
3079
3080         case LFUN_NEWLINE_INSERT:
3081                 // LaTeX restrictions (labels or empty par)
3082                 enable = !cur.paragraph().isPassThru()
3083                         && cur.pos() > cur.paragraph().beginOfBody();
3084                 break;
3085
3086         case LFUN_SEPARATOR_INSERT:
3087                 // Always enabled for now
3088                 enable = true;
3089                 break;
3090
3091         case LFUN_TAB_INSERT:
3092         case LFUN_TAB_DELETE:
3093                 enable = cur.paragraph().isPassThru();
3094                 break;
3095
3096         case LFUN_SET_GRAPHICS_GROUP: {
3097                 InsetGraphics * ins = graphics::getCurrentGraphicsInset(cur);
3098                 if (!ins)
3099                         enable = false;
3100                 else
3101                         flag.setOnOff(to_utf8(cmd.argument()) == ins->getParams().groupId);
3102                 break;
3103         }
3104
3105         case LFUN_NEWPAGE_INSERT:
3106                 // not allowed in description items
3107                 code = NEWPAGE_CODE;
3108                 enable = !inDescriptionItem(cur);
3109                 break;
3110
3111         case LFUN_DATE_INSERT: {
3112                 string const format = cmd.argument().empty()
3113                         ? lyxrc.date_insert_format : to_utf8(cmd.argument());
3114                 enable = support::os::is_valid_strftime(format);
3115                 break;
3116         }
3117
3118         case LFUN_LANGUAGE:
3119                 enable = !cur.paragraph().isPassThru();
3120                 flag.setOnOff(cmd.getArg(0) == cur.real_current_font.language()->lang());
3121                 break;
3122
3123         case LFUN_PARAGRAPH_BREAK:
3124                 enable = inset().allowMultiPar();
3125                 break;
3126
3127         case LFUN_SPELLING_ADD:
3128         case LFUN_SPELLING_IGNORE:
3129         case LFUN_SPELLING_REMOVE:
3130                 enable = theSpellChecker() != NULL;
3131                 if (enable && !cmd.getArg(1).empty()) {
3132                         // validate explicitly given language
3133                         Language const * const lang = const_cast<Language *>(languages.getLanguage(cmd.getArg(1)));
3134                         enable &= lang != NULL;
3135                 }
3136                 break;
3137
3138         case LFUN_LAYOUT: {
3139                 DocumentClass const & tclass = cur.buffer()->params().documentClass();
3140                 docstring layout = cmd.argument();
3141                 if (layout.empty())
3142                         layout = tclass.defaultLayoutName();
3143                 enable = !owner_->forcePlainLayout() && tclass.hasLayout(layout);
3144
3145                 flag.setOnOff(layout == cur.paragraph().layout().name());
3146                 break;
3147         }
3148
3149         case LFUN_ENVIRONMENT_SPLIT: {
3150                 if (cmd.argument() == "outer") {
3151                         // check if we have an environment in our nesting hierarchy
3152                         bool res = false;
3153                         depth_type const current_depth = cur.paragraph().params().depth();
3154                         pit_type pit = cur.pit();
3155                         Paragraph cpar = pars_[pit];
3156                         while (true) {
3157                                 if (pit == 0 || cpar.params().depth() == 0)
3158                                         break;
3159                                 --pit;
3160                                 cpar = pars_[pit];
3161                                 if (cpar.params().depth() < current_depth)
3162                                         res = cpar.layout().isEnvironment();
3163                         }
3164                         enable = res;
3165                         break;
3166                 }
3167                 else if (cur.paragraph().layout().isEnvironment()) {
3168                         enable = true;
3169                         break;
3170                 }
3171                 enable = false;
3172                 break;
3173         }
3174
3175         case LFUN_LAYOUT_PARAGRAPH:
3176         case LFUN_PARAGRAPH_PARAMS:
3177         case LFUN_PARAGRAPH_PARAMS_APPLY:
3178         case LFUN_PARAGRAPH_UPDATE:
3179                 enable = owner_->allowParagraphCustomization();
3180                 break;
3181
3182         // FIXME: why are accent lfuns forbidden with pass_thru layouts?
3183         //  Because they insert COMBINING DIACRITICAL Unicode characters,
3184         //  that cannot be handled by LaTeX but must be converted according
3185         //  to the definition in lib/unicodesymbols?
3186         case LFUN_ACCENT_ACUTE:
3187         case LFUN_ACCENT_BREVE:
3188         case LFUN_ACCENT_CARON:
3189         case LFUN_ACCENT_CEDILLA:
3190         case LFUN_ACCENT_CIRCLE:
3191         case LFUN_ACCENT_CIRCUMFLEX:
3192         case LFUN_ACCENT_DOT:
3193         case LFUN_ACCENT_GRAVE:
3194         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
3195         case LFUN_ACCENT_MACRON:
3196         case LFUN_ACCENT_OGONEK:
3197         case LFUN_ACCENT_TIE:
3198         case LFUN_ACCENT_TILDE:
3199         case LFUN_ACCENT_PERISPOMENI:
3200         case LFUN_ACCENT_UMLAUT:
3201         case LFUN_ACCENT_UNDERBAR:
3202         case LFUN_ACCENT_UNDERDOT:
3203         case LFUN_FONT_DEFAULT:
3204         case LFUN_FONT_FRAK:
3205         case LFUN_FONT_SIZE:
3206         case LFUN_FONT_STATE:
3207         case LFUN_FONT_UNDERLINE:
3208         case LFUN_FONT_STRIKEOUT:
3209         case LFUN_FONT_CROSSOUT:
3210         case LFUN_FONT_UNDERUNDERLINE:
3211         case LFUN_FONT_UNDERWAVE:
3212         case LFUN_TEXTSTYLE_APPLY:
3213         case LFUN_TEXTSTYLE_UPDATE:
3214                 enable = !cur.paragraph().isPassThru();
3215                 break;
3216
3217         case LFUN_WORD_DELETE_FORWARD:
3218         case LFUN_WORD_DELETE_BACKWARD:
3219         case LFUN_LINE_DELETE_FORWARD:
3220         case LFUN_WORD_FORWARD:
3221         case LFUN_WORD_BACKWARD:
3222         case LFUN_WORD_RIGHT:
3223         case LFUN_WORD_LEFT:
3224         case LFUN_CHAR_FORWARD:
3225         case LFUN_CHAR_FORWARD_SELECT:
3226         case LFUN_CHAR_BACKWARD:
3227         case LFUN_CHAR_BACKWARD_SELECT:
3228         case LFUN_CHAR_LEFT:
3229         case LFUN_CHAR_LEFT_SELECT:
3230         case LFUN_CHAR_RIGHT:
3231         case LFUN_CHAR_RIGHT_SELECT:
3232         case LFUN_UP:
3233         case LFUN_UP_SELECT:
3234         case LFUN_DOWN:
3235         case LFUN_DOWN_SELECT:
3236         case LFUN_PARAGRAPH_UP_SELECT:
3237         case LFUN_PARAGRAPH_DOWN_SELECT:
3238         case LFUN_LINE_BEGIN_SELECT:
3239         case LFUN_LINE_END_SELECT:
3240         case LFUN_WORD_FORWARD_SELECT:
3241         case LFUN_WORD_BACKWARD_SELECT:
3242         case LFUN_WORD_RIGHT_SELECT:
3243         case LFUN_WORD_LEFT_SELECT:
3244         case LFUN_WORD_SELECT:
3245         case LFUN_SECTION_SELECT:
3246         case LFUN_BUFFER_BEGIN:
3247         case LFUN_BUFFER_END:
3248         case LFUN_BUFFER_BEGIN_SELECT:
3249         case LFUN_BUFFER_END_SELECT:
3250         case LFUN_INSET_BEGIN:
3251         case LFUN_INSET_END:
3252         case LFUN_INSET_BEGIN_SELECT:
3253         case LFUN_INSET_END_SELECT:
3254         case LFUN_PARAGRAPH_UP:
3255         case LFUN_PARAGRAPH_DOWN:
3256         case LFUN_LINE_BEGIN:
3257         case LFUN_LINE_END:
3258         case LFUN_CHAR_DELETE_FORWARD:
3259         case LFUN_CHAR_DELETE_BACKWARD:
3260         case LFUN_WORD_UPCASE:
3261         case LFUN_WORD_LOWCASE:
3262         case LFUN_WORD_CAPITALIZE:
3263         case LFUN_CHARS_TRANSPOSE:
3264         case LFUN_SERVER_GET_XY:
3265         case LFUN_SERVER_SET_XY:
3266         case LFUN_SERVER_GET_LAYOUT:
3267         case LFUN_SELF_INSERT:
3268         case LFUN_UNICODE_INSERT:
3269         case LFUN_THESAURUS_ENTRY:
3270         case LFUN_ESCAPE:
3271         case LFUN_SERVER_GET_STATISTICS:
3272                 // these are handled in our dispatch()
3273                 enable = true;
3274                 break;
3275
3276         case LFUN_INSET_INSERT: {
3277                 string const type = cmd.getArg(0);
3278                 if (type == "toc") {
3279                         code = TOC_CODE;
3280                         // not allowed in description items
3281                         //FIXME: couldn't this be merged in Inset::insetAllowed()?
3282                         enable = !inDescriptionItem(cur);
3283                 } else {
3284                         enable = true;
3285                 }
3286                 break;
3287         }
3288
3289         default:
3290                 return false;
3291         }
3292
3293         if (code != NO_CODE
3294             && (cur.empty()
3295                 || !cur.inset().insetAllowed(code)
3296                 || (cur.paragraph().layout().pass_thru && !allow_in_passthru)))
3297                 enable = false;
3298
3299         flag.setEnabled(enable);
3300         return true;
3301 }
3302
3303
3304 void Text::pasteString(Cursor & cur, docstring const & clip,
3305                 bool asParagraphs)
3306 {
3307         if (!clip.empty()) {
3308                 cur.recordUndo();
3309                 if (asParagraphs)
3310                         insertStringAsParagraphs(cur, clip, cur.current_font);
3311                 else
3312                         insertStringAsLines(cur, clip, cur.current_font);
3313         }
3314 }
3315
3316
3317 // FIXME: an item inset would make things much easier.
3318 bool Text::inDescriptionItem(Cursor & cur) const
3319 {
3320         Paragraph & par = cur.paragraph();
3321         pos_type const pos = cur.pos();
3322         pos_type const body_pos = par.beginOfBody();
3323
3324         if (par.layout().latextype != LATEX_LIST_ENVIRONMENT
3325             && (par.layout().latextype != LATEX_ITEM_ENVIRONMENT
3326                 || par.layout().margintype != MARGIN_FIRST_DYNAMIC))
3327                 return false;
3328
3329         return (pos < body_pos
3330                 || (pos == body_pos
3331                     && (pos == 0 || par.getChar(pos - 1) != ' ')));
3332 }
3333
3334 } // namespace lyx