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/InsetCollapsible.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/InsetInfo.h"
  64 #include "insets/InsetIPAMacro.h"
  65 #include "insets/InsetNewline.h"
  66 #include "insets/InsetQuotes.h"
  67 #include "insets/InsetSpecialChar.h"
  68 #include "insets/InsetText.h"
  69 #include "insets/InsetWrap.h"
  70
  71 #include "support/convert.h"
  72 #include "support/debug.h"
  73 #include "support/filetools.h"
  74 #include "support/gettext.h"
  75 #include "support/lassert.h"
  76 #include "support/limited_stack.h"
  77 #include "support/lstrings.h"
  78 #include "support/lyxalgo.h"
  79 #include "support/lyxtime.h"
  80 #include "support/os.h"
  81 #include "support/regex.h"
  82
  83 #include "mathed/InsetMathHull.h"
  84 #include "mathed/InsetMathMacroTemplate.h"
  85 #include "lyxfind.h"
  86
  87 #include <clocale>
  88 #include <sstream>
  89
  90 using namespace std;
  91 using namespace lyx::support;
  92
  93 namespace lyx {
  94
  95 using cap::copySelection;
  96 using cap::copySelectionToTemp;
  97 using cap::cutSelection;
  98 using cap::cutSelectionToTemp;
  99 using cap::pasteFromStack;
 100 using cap::pasteFromTemp;
 101 using cap::pasteClipboardText;
 102 using cap::pasteClipboardGraphics;
 103 using cap::replaceSelection;
 104 using cap::grabAndEraseSelection;
 105 using cap::selClearOrDel;
 106 using cap::pasteSimpleText;
 107 using frontend::Clipboard;
 108
 109 // globals...
 110 typedef limited_stack<pair<docstring, Font>> FontStack;
 111 static FontStack freeFonts(15);
 112 static bool toggleall = false;
 113
 114 static void toggleAndShow(Cursor & cur, Text * text,
 115         Font const & font, bool togall = true)
 116 {
 117         text->toggleFree(cur, font, togall);
 118
 119         if (font.language() != ignore_language ||
 120             font.fontInfo().number() != FONT_IGNORE) {
 121                 TextMetrics const & tm = cur.bv().textMetrics(text);
 122                 if (cur.boundary() != tm.isRTLBoundary(cur.pit(), cur.pos(),
 123                                                        cur.real_current_font))
 124                         text->setCursor(cur, cur.pit(), cur.pos(),
 125                                         false, !cur.boundary());
 126         }
 127 }
 128
 129
 130 static void moveCursor(Cursor & cur, bool selecting)
 131 {
 132         if (selecting || cur.mark())
 133                 cur.setSelection();
 134 }
 135
 136
 137 static void finishChange(Cursor & cur, bool selecting)
 138 {
 139         cur.finishUndo();
 140         moveCursor(cur, selecting);
 141 }
 142
 143
 144 static void mathDispatch(Cursor & cur, FuncRequest const & cmd)
 145 {
 146         cur.recordUndo();
 147         docstring sel = cur.selectionAsString(false);
 148
 149         // It may happen that sel is empty but there is a selection
 150         replaceSelection(cur);
 151
 152         // Is this a valid formula?
 153         bool valid = true;
 154
 155         if (sel.empty()) {
 156 #ifdef ENABLE_ASSERTIONS
 157                 const int old_pos = cur.pos();
 158 #endif
 159                 cur.insert(new InsetMathHull(cur.buffer(), hullSimple));
 160 #ifdef ENABLE_ASSERTIONS
 161                 LATTEST(old_pos == cur.pos());
 162 #endif
 163                 cur.nextInset()->edit(cur, true);
 164                 if (cmd.action() != LFUN_MATH_MODE)
 165                         // LFUN_MATH_MODE has a different meaning in math mode
 166                         cur.dispatch(cmd);
 167         } else {
 168                 InsetMathHull * formula = new InsetMathHull(cur.buffer());
 169                 string const selstr = to_utf8(sel);
 170                 istringstream is(selstr);
 171                 Lexer lex;
 172                 lex.setStream(is);
 173                 if (!formula->readQuiet(lex)) {
 174                         // No valid formula, let's try with delims
 175                         is.str("$" + selstr + "$");
 176                         lex.setStream(is);
 177                         if (!formula->readQuiet(lex)) {
 178                                 // Still not valid, leave it as is
 179                                 valid = false;
 180                                 delete formula;
 181                                 cur.insert(sel);
 182                         }
 183                 }
 184                 if (valid) {
 185                         cur.insert(formula);
 186                         cur.nextInset()->edit(cur, true);
 187                         LASSERT(cur.inMathed(), return);
 188                         cur.pos() = 0;
 189                         cur.resetAnchor();
 190                         cur.selection(true);
 191                         cur.pos() = cur.lastpos();
 192                         if (cmd.action() != LFUN_MATH_MODE)
 193                                 // LFUN_MATH_MODE has a different meaning in math mode
 194                                 cur.dispatch(cmd);
 195                         cur.clearSelection();
 196                         cur.pos() = cur.lastpos();
 197                 }
 198         }
 199         if (valid)
 200                 cur.message(from_utf8(N_("Math editor mode")));
 201         else
 202                 cur.message(from_utf8(N_("No valid math formula")));
 203 }
 204
 205
 206 void regexpDispatch(Cursor & cur, FuncRequest const & cmd)
 207 {
 208         LASSERT(cmd.action() == LFUN_REGEXP_MODE, return);
 209         if (cur.inRegexped()) {
 210                 cur.message(_("Already in regular expression mode"));
 211                 return;
 212         }
 213         cur.recordUndo();
 214         docstring sel = cur.selectionAsString(false);
 215
 216         // It may happen that sel is empty but there is a selection
 217         replaceSelection(cur);
 218
 219         cur.insert(new InsetMathHull(cur.buffer(), hullRegexp));
 220         cur.nextInset()->edit(cur, true);
 221         cur.niceInsert(sel);
 222
 223         cur.message(_("Regexp editor mode"));
 224 }
 225
 226
 227 static void specialChar(Cursor & cur, InsetSpecialChar::Kind kind)
 228 {
 229         cur.recordUndo();
 230         cap::replaceSelection(cur);
 231         cur.insert(new InsetSpecialChar(kind));
 232         cur.posForward();
 233 }
 234
 235
 236 static void ipaChar(Cursor & cur, InsetIPAChar::Kind kind)
 237 {
 238         cur.recordUndo();
 239         cap::replaceSelection(cur);
 240         cur.insert(new InsetIPAChar(kind));
 241         cur.posForward();
 242 }
 243
 244
 245 static bool doInsertInset(Cursor & cur, Text * text,
 246         FuncRequest const & cmd, bool edit, bool pastesel)
 247 {
 248         Buffer & buffer = cur.bv().buffer();
 249         BufferParams const & bparams = buffer.params();
 250         Inset * inset = createInset(&buffer, cmd);
 251         if (!inset)
 252                 return false;
 253
 254         if (InsetCollapsible * ci = inset->asInsetCollapsible())
 255                 ci->setButtonLabel();
 256
 257         cur.recordUndo();
 258         if (cmd.action() == LFUN_ARGUMENT_INSERT) {
 259                 bool cotextinsert = false;
 260                 InsetArgument const * const ia = static_cast<InsetArgument const *>(inset);
 261                 Layout const & lay = cur.paragraph().layout();
 262                 Layout::LaTeXArgMap args = lay.args();
 263                 Layout::LaTeXArgMap::const_iterator const lait = args.find(ia->name());
 264                 if (lait != args.end())
 265                         cotextinsert = (*lait).second.insertcotext;
 266                 else {
 267                         InsetLayout const & il = cur.inset().getLayout();
 268                         args = il.args();
 269                         Layout::LaTeXArgMap::const_iterator const ilait = args.find(ia->name());
 270                         if (ilait != args.end())
 271                                 cotextinsert = (*ilait).second.insertcotext;
 272                 }
 273                 // The argument requests to insert a copy of the co-text to the inset
 274                 if (cotextinsert) {
 275                         docstring ds;
 276                         // If we have a selection within a paragraph, use this
 277                         if (cur.selection() && cur.selBegin().pit() == cur.selEnd().pit())
 278                                 ds = cur.selectionAsString(false);
 279                         // else use the whole paragraph
 280                         else
 281                                 ds = cur.paragraph().asString();
 282                         text->insertInset(cur, inset);
 283                         if (edit)
 284                                 inset->edit(cur, true);
 285                         // Now put co-text into inset
 286                         Font const f(inherit_font, cur.current_font.language());
 287                         if (!ds.empty()) {
 288                                 cur.text()->insertStringAsLines(cur, ds, f);
 289                                 cur.leaveInset(*inset);
 290                         }
 291                         return true;
 292                 }
 293         }
 294
 295         bool gotsel = false;
 296         if (cur.selection()) {
 297                 if (cmd.action() == LFUN_INDEX_INSERT)
 298                         copySelectionToTemp(cur);
 299                 else
 300                         cutSelectionToTemp(cur, pastesel);
 301                 cur.clearSelection();
 302                 gotsel = true;
 303         } else if (cmd.action() == LFUN_INDEX_INSERT) {
 304                 gotsel = text->selectWordWhenUnderCursor(cur, WHOLE_WORD);
 305                 copySelectionToTemp(cur);
 306                 cur.clearSelection();
 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 /// the type of outline operation
 355 enum OutlineOp {
 356         OutlineUp, // Move this header with text down
 357         OutlineDown,   // Move this header with text up
 358         OutlineIn, // Make this header deeper
 359         OutlineOut // Make this header shallower
 360 };
 361
 362
 363 static void insertSeparator(Cursor & cur, depth_type const depth)
 364 {
 365         Buffer & buf = *cur.buffer();
 366         lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK));
 367         DocumentClass const & tc = buf.params().documentClass();
 368         lyx::dispatch(FuncRequest(LFUN_LAYOUT, from_ascii("\"") + tc.plainLayout().name()
 369                                   + from_ascii("\" ignoreautonests")));
 370         // FIXME: Bibitem mess!
 371         if (cur.prevInset() && cur.prevInset()->lyxCode() == BIBITEM_CODE)
 372                 lyx::dispatch(FuncRequest(LFUN_CHAR_DELETE_BACKWARD));
 373         lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "plain"));
 374         while (cur.paragraph().params().depth() > depth)
 375                 lyx::dispatch(FuncRequest(LFUN_DEPTH_DECREMENT));
 376 }
 377
 378
 379 static void outline(OutlineOp mode, Cursor & cur, Text * text)
 380 {
 381         Buffer & buf = *cur.buffer();
 382         pit_type & pit = cur.pit();
 383         ParagraphList & pars = buf.text().paragraphs();
 384         ParagraphList::iterator const bgn = pars.begin();
 385         // The first paragraph of the area to be copied:
 386         ParagraphList::iterator start = lyx::next(bgn, pit);
 387         // The final paragraph of area to be copied:
 388         ParagraphList::iterator finish = start;
 389         ParagraphList::iterator const end = pars.end();
 390         depth_type const current_depth = cur.paragraph().params().depth();
 391
 392         int const thistoclevel = buf.text().getTocLevel(distance(bgn, start));
 393         int toclevel;
 394
 395         // Move out (down) from this section header
 396         if (finish != end)
 397                 ++finish;
 398
 399         // Seek the one (on same level) below
 400         for (; finish != end; ++finish) {
 401                 toclevel = buf.text().getTocLevel(distance(bgn, finish));
 402                 if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel)
 403                         break;
 404         }
 405
 406         switch (mode) {
 407                 case OutlineUp: {
 408                         if (start == pars.begin())
 409                                 // Nothing to move.
 410                                 return;
 411                         ParagraphList::iterator dest = start;
 412                         // Move out (up) from this header
 413                         if (dest == bgn)
 414                                 return;
 415                         // Search previous same-level header above
 416                         do {
 417                                 --dest;
 418                                 toclevel = buf.text().getTocLevel(distance(bgn, dest));
 419                         } while(dest != bgn
 420                                 && (toclevel == Layout::NOT_IN_TOC
 421                                     || toclevel > thistoclevel));
 422                         // Not found; do nothing
 423                         if (toclevel == Layout::NOT_IN_TOC || toclevel > thistoclevel)
 424                                 return;
 425                         pit_type newpit = distance(bgn, dest);
 426                         pit_type const len = distance(start, finish);
 427                         pit_type const deletepit = pit + len;
 428                         buf.undo().recordUndo(cur, newpit, deletepit - 1);
 429                         // If we move an environment upwards, make sure it is
 430                         // separated from its new neighbour below:
 431                         // If an environment of the same layout follows, and the moved
 432                         // paragraph sequence does not end with a separator, insert one.
 433                         ParagraphList::iterator lastmoved = finish;
 434                         --lastmoved;
 435                         if (start->layout().isEnvironment()
 436                             && dest->layout() == start->layout()
 437                             && !lastmoved->isEnvSeparator(lastmoved->beginOfBody())) {
 438                                 cur.pit() = distance(bgn, lastmoved);
 439                                 cur.pos() = cur.lastpos();
 440                                 insertSeparator(cur, current_depth);
 441                                 cur.pit() = pit;
 442                         }
 443                         // Likewise, if we moved an environment upwards, make sure it
 444                         // is separated from its new neighbour above.
 445                         // The paragraph before the target of movement
 446                         if (dest != bgn) {
 447                                 ParagraphList::iterator before = dest;
 448                                 --before;
 449                                 // Get the parent paragraph (outer in nested context)
 450                                 pit_type const parent =
 451                                         before->params().depth() > current_depth
 452                                                 ? text->depthHook(distance(bgn, before), current_depth)
 453                                                 : distance(bgn, before);
 454                                 // If a environment with same layout preceeds the moved one in the new
 455                                 // position, and there is no separator yet, insert one.
 456                                 if (start->layout().isEnvironment()
 457                                     && pars[parent].layout() == start->layout()
 458                                     && !before->isEnvSeparator(before->beginOfBody())) {
 459                                         cur.pit() = distance(bgn, before);
 460                                         cur.pos() = cur.lastpos();
 461                                         insertSeparator(cur, current_depth);
 462                                         cur.pit() = pit;
 463                                 }
 464                         }
 465                         newpit = distance(bgn, dest);
 466                         pars.splice(dest, start, finish);
 467                         cur.pit() = newpit;
 468                         break;
 469                 }
 470                 case OutlineDown: {
 471                         if (finish == end)
 472                                 // Nothing to move.
 473                                 return;
 474                         // Go one down from *this* header:
 475                         ParagraphList::iterator dest = next(finish, 1);
 476                         // Go further down to find header to insert in front of:
 477                         for (; dest != end; ++dest) {
 478                                 toclevel = buf.text().getTocLevel(distance(bgn, dest));
 479                                 if (toclevel != Layout::NOT_IN_TOC
 480                                       && toclevel <= thistoclevel)
 481                                         break;
 482                         }
 483                         // One such was found, so go on...
 484                         // If we move an environment downwards, make sure it is
 485                         // separated from its new neighbour above.
 486                         pit_type newpit = distance(bgn, dest);
 487                         buf.undo().recordUndo(cur, pit, newpit - 1);
 488                         // The paragraph before the target of movement
 489                         ParagraphList::iterator before = dest;
 490                         --before;
 491                         // Get the parent paragraph (outer in nested context)
 492                         pit_type const parent =
 493                                 before->params().depth() > current_depth
 494                                         ? text->depthHook(distance(bgn, before), current_depth)
 495                                         : distance(bgn, before);
 496                         // If a environment with same layout preceeds the moved one in the new
 497                         // position, and there is no separator yet, insert one.
 498                         if (start->layout().isEnvironment()
 499                             && pars[parent].layout() == start->layout()
 500                             && !before->isEnvSeparator(before->beginOfBody())) {
 501                                 cur.pit() = distance(bgn, before);
 502                                 cur.pos() = cur.lastpos();
 503                                 insertSeparator(cur, current_depth);
 504                                 cur.pit() = pit;
 505                         }
 506                         // Likewise, make sure moved environments are separated
 507                         // from their new neighbour below:
 508                         // If an environment of the same layout follows, and the moved
 509                         // paragraph sequence does not end with a separator, insert one.
 510                         ParagraphList::iterator lastmoved = finish;
 511                         --lastmoved;
 512                         if (dest != end
 513                             && start->layout().isEnvironment()
 514                             && dest->layout() == start->layout()
 515                             && !lastmoved->isEnvSeparator(lastmoved->beginOfBody())) {
 516                                 cur.pit() = distance(bgn, lastmoved);
 517                                 cur.pos() = cur.lastpos();
 518                                 insertSeparator(cur, current_depth);
 519                                 cur.pit() = pit;
 520                         }
 521                         newpit = distance(bgn, dest);
 522                         pit_type const len = distance(start, finish);
 523                         pars.splice(dest, start, finish);
 524                         cur.pit() = newpit - len;
 525                         break;
 526                 }
 527                 case OutlineIn:
 528                 case OutlineOut: {
 529                         pit_type const len = distance(start, finish);
 530                         buf.undo().recordUndo(cur, pit, pit + len - 1);
 531                         for (; start != finish; ++start) {
 532                                 toclevel = buf.text().getTocLevel(distance(bgn, start));
 533                                 if (toclevel == Layout::NOT_IN_TOC)
 534                                         continue;
 535
 536                                 DocumentClass const & tc = buf.params().documentClass();
 537                                 DocumentClass::const_iterator lit = tc.begin();
 538                                 DocumentClass::const_iterator len = tc.end();
 539                                 int const newtoclevel =
 540                                         (mode == OutlineIn ? toclevel + 1 : toclevel - 1);
 541                                 LabelType const oldlabeltype = start->layout().labeltype;
 542
 543                                 for (; lit != len; ++lit) {
 544                                         if (lit->toclevel ==  newtoclevel &&
 545                                              lit->labeltype == oldlabeltype) {
 546                                                 start->setLayout(*lit);
 547                                                 break;
 548                                         }
 549                                 }
 550                         }
 551                         break;
 552                 }
 553         }
 554 }
 555
 556
 557 void Text::number(Cursor & cur)
 558 {
 559         FontInfo font = ignore_font;
 560         font.setNumber(FONT_TOGGLE);
 561         toggleAndShow(cur, this, Font(font, ignore_language));
 562 }
 563
 564
 565 bool Text::isRTL(pit_type const pit) const
 566 {
 567         Buffer const & buffer = owner_->buffer();
 568         return pars_[pit].isRTL(buffer.params());
 569 }
 570
 571
 572 namespace {
 573
 574 Language const * getLanguage(Cursor const & cur, string const & lang)
 575 {
 576         return lang.empty() ? cur.getFont().language() : languages.getLanguage(lang);
 577 }
 578
 579
 580 docstring resolveLayout(docstring layout, DocIterator const & dit)
 581 {
 582         Paragraph const & par = dit.paragraph();
 583         docstring const old_layout = par.layout().name();
 584         DocumentClass const & tclass = dit.buffer()->params().documentClass();
 585
 586         if (layout.empty())
 587                 layout = tclass.defaultLayoutName();
 588
 589         if (dit.inset().forcePlainLayout(dit.idx()))
 590                 // in this case only the empty layout is allowed
 591                 layout = tclass.plainLayoutName();
 592         else if (par.usePlainLayout()) {
 593                 // in this case, default layout maps to empty layout
 594                 if (layout == tclass.defaultLayoutName())
 595                         layout = tclass.plainLayoutName();
 596         } else {
 597                 // otherwise, the empty layout maps to the default
 598                 if (layout == tclass.plainLayoutName())
 599                         layout = tclass.defaultLayoutName();
 600         }
 601
 602         // If the entry is obsolete, use the new one instead.
 603         if (tclass.hasLayout(layout)) {
 604                 docstring const & obs = tclass[layout].obsoleted_by();
 605                 if (!obs.empty())
 606                         layout = obs;
 607         }
 608         if (!tclass.hasLayout(layout))
 609                 layout.clear();
 610         return layout;
 611 }
 612
 613
 614 bool isAlreadyLayout(docstring const & layout, CursorData const & cur)
 615 {
 616         ParagraphList const & pars = cur.text()->paragraphs();
 617
 618         pit_type pit = cur.selBegin().pit();
 619         pit_type const epit = cur.selEnd().pit() + 1;
 620         for ( ; pit != epit; ++pit)
 621                 if (pars[pit].layout().name() != layout)
 622                         return false;
 623
 624         return true;
 625 }
 626
 627
 628 } // namespace
 629
 630
 631 void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 632 {
 633         LYXERR(Debug::ACTION, "Text::dispatch: cmd: " << cmd);
 634
 635         // Dispatch if the cursor is inside the text. It is not the
 636         // case for context menus (bug 5797).
 637         if (cur.text() != this) {
 638                 cur.undispatched();
 639                 return;
 640         }
 641
 642         BufferView * bv = &cur.bv();
 643         TextMetrics * tm = &bv->textMetrics(this);
 644         if (!tm->contains(cur.pit())) {
 645                 lyx::dispatch(FuncRequest(LFUN_SCREEN_SHOW_CURSOR));
 646                 tm = &bv->textMetrics(this);
 647         }
 648
 649         // FIXME: We use the update flag to indicates wether a singlePar or a
 650         // full screen update is needed. We reset it here but shall we restore it
 651         // at the end?
 652         cur.noScreenUpdate();
 653
 654         LBUFERR(this == cur.text());
 655
 656         // NOTE: This should NOT be a reference. See commit 94a5481a.
 657         CursorSlice const oldTopSlice = cur.top();
 658         bool const oldBoundary = cur.boundary();
 659         bool const oldSelection = cur.selection();
 660         // Signals that, even if needsUpdate == false, an update of the
 661         // cursor paragraph is required
 662         bool singleParUpdate = lyxaction.funcHasFlag(cmd.action(),
 663                 LyXAction::SingleParUpdate);
 664         // Signals that a full-screen update is required
 665         bool needsUpdate = !(lyxaction.funcHasFlag(cmd.action(),
 666                 LyXAction::NoUpdate) || singleParUpdate);
 667         bool const last_misspelled = lyxrc.spellcheck_continuously
 668                 && cur.paragraph().isMisspelled(cur.pos(), true);
 669
 670         FuncCode const act = cmd.action();
 671         switch (act) {
 672
 673         case LFUN_PARAGRAPH_MOVE_DOWN: {
 674                 pit_type const pit = cur.pit();
 675                 cur.recordUndo(pit, pit + 1);
 676                 cur.finishUndo();
 677                 pars_.swap(pit, pit + 1);
 678                 needsUpdate = true;
 679                 cur.forceBufferUpdate();
 680                 ++cur.pit();
 681                 break;
 682         }
 683
 684         case LFUN_PARAGRAPH_MOVE_UP: {
 685                 pit_type const pit = cur.pit();
 686                 cur.recordUndo(pit - 1, pit);
 687                 cur.finishUndo();
 688                 pars_.swap(pit, pit - 1);
 689                 --cur.pit();
 690                 needsUpdate = true;
 691                 cur.forceBufferUpdate();
 692                 break;
 693         }
 694
 695         case LFUN_APPENDIX: {
 696                 Paragraph & par = cur.paragraph();
 697                 bool start = !par.params().startOfAppendix();
 698
 699 // FIXME: The code below only makes sense at top level.
 700 // Should LFUN_APPENDIX be restricted to top-level paragraphs?
 701                 // ensure that we have only one start_of_appendix in this document
 702                 // FIXME: this don't work for multipart document!
 703                 for (pit_type tmp = 0, end = pars_.size(); tmp != end; ++tmp) {
 704                         if (pars_[tmp].params().startOfAppendix()) {
 705                                 cur.recordUndo(tmp, tmp);
 706                                 pars_[tmp].params().startOfAppendix(false);
 707                                 break;
 708                         }
 709                 }
 710
 711                 cur.recordUndo();
 712                 par.params().startOfAppendix(start);
 713
 714                 // we can set the refreshing parameters now
 715                 cur.forceBufferUpdate();
 716                 break;
 717         }
 718
 719         case LFUN_WORD_DELETE_FORWARD:
 720                 if (cur.selection())
 721                         cutSelection(cur, false);
 722                 else
 723                         deleteWordForward(cur, cmd.getArg(0) == "force");
 724                 finishChange(cur, false);
 725                 break;
 726
 727         case LFUN_WORD_DELETE_BACKWARD:
 728                 if (cur.selection())
 729                         cutSelection(cur, false);
 730                 else
 731                         deleteWordBackward(cur, cmd.getArg(0) == "force");
 732                 finishChange(cur, false);
 733                 break;
 734
 735         case LFUN_LINE_DELETE_FORWARD:
 736                 if (cur.selection())
 737                         cutSelection(cur, false);
 738                 else
 739                         tm->deleteLineForward(cur);
 740                 finishChange(cur, false);
 741                 break;
 742
 743         case LFUN_BUFFER_BEGIN:
 744         case LFUN_BUFFER_BEGIN_SELECT:
 745                 needsUpdate |= cur.selHandle(act == LFUN_BUFFER_BEGIN_SELECT);
 746                 if (cur.depth() == 1)
 747                         needsUpdate |= cursorTop(cur);
 748                 else
 749                         cur.undispatched();
 750                 cur.screenUpdateFlags(Update::FitCursor);
 751                 break;
 752
 753         case LFUN_BUFFER_END:
 754         case LFUN_BUFFER_END_SELECT:
 755                 needsUpdate |= cur.selHandle(act == LFUN_BUFFER_END_SELECT);
 756                 if (cur.depth() == 1)
 757                         needsUpdate |= cursorBottom(cur);
 758                 else
 759                         cur.undispatched();
 760                 cur.screenUpdateFlags(Update::FitCursor);
 761                 break;
 762
 763         case LFUN_INSET_BEGIN:
 764         case LFUN_INSET_BEGIN_SELECT:
 765                 needsUpdate |= cur.selHandle(act == LFUN_INSET_BEGIN_SELECT);
 766                 if (cur.depth() == 1 || !cur.top().at_begin())
 767                         needsUpdate |= cursorTop(cur);
 768                 else
 769                         cur.undispatched();
 770                 cur.screenUpdateFlags(Update::FitCursor);
 771                 break;
 772
 773         case LFUN_INSET_END:
 774         case LFUN_INSET_END_SELECT:
 775                 needsUpdate |= cur.selHandle(act == LFUN_INSET_END_SELECT);
 776                 if (cur.depth() == 1 || !cur.top().at_end())
 777                         needsUpdate |= cursorBottom(cur);
 778                 else
 779                         cur.undispatched();
 780                 cur.screenUpdateFlags(Update::FitCursor);
 781                 break;
 782
 783         case LFUN_CHAR_FORWARD:
 784         case LFUN_CHAR_FORWARD_SELECT: {
 785                 //LYXERR0(" LFUN_CHAR_FORWARD[SEL]:\n" << cur);
 786                 needsUpdate |= cur.selHandle(act == LFUN_CHAR_FORWARD_SELECT);
 787                 bool const cur_moved = cursorForward(cur);
 788                 needsUpdate |= cur_moved;
 789
 790                 if (!cur_moved && oldTopSlice == cur.top()
 791                                && cur.boundary() == oldBoundary) {
 792                         cur.undispatched();
 793                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 794
 795                         // we will probably be moving out the inset, so we should execute
 796                         // the depm-mechanism, but only when the cursor has a place to
 797                         // go outside this inset, i.e. in a slice above.
 798                         if (cur.depth() > 1 && cur.pos() == cur.lastpos()
 799                                   && cur.pit() == cur.lastpit()) {
 800                                 // The cursor hasn't changed yet. To give the
 801                                 // DEPM the possibility of doing something we must
 802                                 // provide it with two different cursors.
 803                                 Cursor dummy = cur;
 804                                 dummy.pos() = dummy.pit() = 0;
 805                                 if (cur.bv().checkDepm(dummy, cur))
 806                                         cur.forceBufferUpdate();
 807                         }
 808                 }
 809                 break;
 810         }
 811
 812         case LFUN_CHAR_BACKWARD:
 813         case LFUN_CHAR_BACKWARD_SELECT: {
 814                 //lyxerr << "handle LFUN_CHAR_BACKWARD[_SELECT]:\n" << cur << endl;
 815                 needsUpdate |= cur.selHandle(act == LFUN_CHAR_BACKWARD_SELECT);
 816                 bool const cur_moved = cursorBackward(cur);
 817                 needsUpdate |= cur_moved;
 818
 819                 if (!cur_moved && oldTopSlice == cur.top()
 820                                && cur.boundary() == oldBoundary) {
 821                         cur.undispatched();
 822                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
 823
 824                         // we will probably be moving out the inset, so we should execute
 825                         // the depm-mechanism, but only when the cursor has a place to
 826                         // go outside this inset, i.e. in a slice above.
 827                         if (cur.depth() > 1 && cur.pos() == 0 && cur.pit() == 0) {
 828                                 // The cursor hasn't changed yet. To give the
 829                                 // DEPM the possibility of doing something we must
 830                                 // provide it with two different cursors.
 831                                 Cursor dummy = cur;
 832                                 dummy.pos() = cur.lastpos();
 833                                 dummy.pit() = cur.lastpit();
 834                                 if (cur.bv().checkDepm(dummy, cur))
 835                                         cur.forceBufferUpdate();
 836                         }
 837                 }
 838                 break;
 839         }
 840
 841         case LFUN_CHAR_LEFT:
 842         case LFUN_CHAR_LEFT_SELECT:
 843                 if (lyxrc.visual_cursor) {
 844                         needsUpdate |= cur.selHandle(act == LFUN_CHAR_LEFT_SELECT);
 845                         bool const cur_moved = cursorVisLeft(cur);
 846                         needsUpdate |= cur_moved;
 847                         if (!cur_moved && oldTopSlice == cur.top()
 848                                        && cur.boundary() == oldBoundary) {
 849                                 cur.undispatched();
 850                                 cmd = FuncRequest(LFUN_FINISHED_LEFT);
 851                         }
 852                 } else {
 853                         if (cur.reverseDirectionNeeded()) {
 854                                 cmd.setAction(cmd.action() == LFUN_CHAR_LEFT_SELECT ?
 855                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD);
 856                         } else {
 857                                 cmd.setAction(cmd.action() == LFUN_CHAR_LEFT_SELECT ?
 858                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD);
 859                         }
 860                         dispatch(cur, cmd);
 861                         return;
 862                 }
 863                 break;
 864
 865         case LFUN_CHAR_RIGHT:
 866         case LFUN_CHAR_RIGHT_SELECT:
 867                 if (lyxrc.visual_cursor) {
 868                         needsUpdate |= cur.selHandle(cmd.action() == LFUN_CHAR_RIGHT_SELECT);
 869                         bool const cur_moved = cursorVisRight(cur);
 870                         needsUpdate |= cur_moved;
 871                         if (!cur_moved && oldTopSlice == cur.top()
 872                                        && cur.boundary() == oldBoundary) {
 873                                 cur.undispatched();
 874                                 cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 875                         }
 876                 } else {
 877                         if (cur.reverseDirectionNeeded()) {
 878                                 cmd.setAction(cmd.action() == LFUN_CHAR_RIGHT_SELECT ?
 879                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD);
 880                         } else {
 881                                 cmd.setAction(cmd.action() == LFUN_CHAR_RIGHT_SELECT ?
 882                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD);
 883                         }
 884                         dispatch(cur, cmd);
 885                         return;
 886                 }
 887                 break;
 888
 889
 890         case LFUN_UP_SELECT:
 891         case LFUN_DOWN_SELECT:
 892         case LFUN_UP:
 893         case LFUN_DOWN: {
 894                 // stop/start the selection
 895                 bool select = cmd.action() == LFUN_DOWN_SELECT ||
 896                         cmd.action() == LFUN_UP_SELECT;
 897
 898                 // move cursor up/down
 899                 bool up = cmd.action() == LFUN_UP_SELECT || cmd.action() == LFUN_UP;
 900                 bool const atFirstOrLastRow = cur.atFirstOrLastRow(up);
 901
 902                 if (!atFirstOrLastRow) {
 903                         needsUpdate |= cur.selHandle(select);
 904                         cur.upDownInText(up, needsUpdate);
 905                         needsUpdate |= cur.beforeDispatchCursor().inMathed();
 906                 } else {
 907                         pos_type newpos = up ? 0 : cur.lastpos();
 908                         if (lyxrc.mac_like_cursor_movement && cur.pos() != newpos) {
 909                                 needsUpdate |= cur.selHandle(select);
 910                                 // we do not reset the targetx of the cursor
 911                                 cur.pos() = newpos;
 912                                 needsUpdate |= bv->checkDepm(cur, bv->cursor());
 913                                 cur.updateTextTargetOffset();
 914                                 if (needsUpdate)
 915                                         cur.forceBufferUpdate();
 916                                 break;
 917                         }
 918
 919                         // if the cursor cannot be moved up or down do not remove
 920                         // the selection right now, but wait for the next dispatch.
 921                         if (select)
 922                                 needsUpdate |= cur.selHandle(select);
 923                         cur.upDownInText(up, needsUpdate);
 924                         cur.undispatched();
 925                 }
 926
 927                 break;
 928         }
 929
 930         case LFUN_PARAGRAPH_SELECT:
 931                 if (cur.pos() > 0)
 932                         needsUpdate |= setCursor(cur, cur.pit(), 0);
 933                 needsUpdate |= cur.selHandle(true);
 934                 if (cur.pos() < cur.lastpos())
 935                         needsUpdate |= setCursor(cur, cur.pit(), cur.lastpos());
 936                 break;
 937
 938         case LFUN_PARAGRAPH_UP:
 939         case LFUN_PARAGRAPH_UP_SELECT:
 940                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_PARAGRAPH_UP_SELECT);
 941                 needsUpdate |= cursorUpParagraph(cur);
 942                 break;
 943
 944         case LFUN_PARAGRAPH_DOWN:
 945         case LFUN_PARAGRAPH_DOWN_SELECT:
 946                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_PARAGRAPH_DOWN_SELECT);
 947                 needsUpdate |= cursorDownParagraph(cur);
 948                 break;
 949
 950         case LFUN_LINE_BEGIN:
 951         case LFUN_LINE_BEGIN_SELECT:
 952                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_LINE_BEGIN_SELECT);
 953                 needsUpdate |= tm->cursorHome(cur);
 954                 break;
 955
 956         case LFUN_LINE_END:
 957         case LFUN_LINE_END_SELECT:
 958                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_LINE_END_SELECT);
 959                 needsUpdate |= tm->cursorEnd(cur);
 960                 break;
 961
 962         case LFUN_SECTION_SELECT: {
 963                 Buffer const & buf = *cur.buffer();
 964                 pit_type const pit = cur.pit();
 965                 ParagraphList & pars = buf.text().paragraphs();
 966                 ParagraphList::iterator bgn = pars.begin();
 967                 // The first paragraph of the area to be selected:
 968                 ParagraphList::iterator start = lyx::next(bgn, pit);
 969                 // The final paragraph of area to be selected:
 970                 ParagraphList::iterator finish = start;
 971                 ParagraphList::iterator end = pars.end();
 972
 973                 int const thistoclevel = buf.text().getTocLevel(distance(bgn, start));
 974                 if (thistoclevel == Layout::NOT_IN_TOC)
 975                         break;
 976
 977                 cur.pos() = 0;
 978                 Cursor const old_cur = cur;
 979                 needsUpdate |= cur.selHandle(true);
 980
 981                 // Move out (down) from this section header
 982                 if (finish != end)
 983                         ++finish;
 984
 985                 // Seek the one (on same level) below
 986                 for (; finish != end; ++finish, ++cur.pit()) {
 987                         int const toclevel = buf.text().getTocLevel(distance(bgn, finish));
 988                         if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel)
 989                                 break;
 990                 }
 991                 cur.pos() = cur.lastpos();
 992                 cur.boundary(false);
 993                 cur.setCurrentFont();
 994
 995                 needsUpdate |= cur != old_cur;
 996                 break;
 997         }
 998
 999         case LFUN_WORD_RIGHT:
1000         case LFUN_WORD_RIGHT_SELECT:
1001                 if (lyxrc.visual_cursor) {
1002                         needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_RIGHT_SELECT);
1003                         bool const cur_moved = cursorVisRightOneWord(cur);
1004                         needsUpdate |= cur_moved;
1005                         if (!cur_moved && oldTopSlice == cur.top()
1006                                        && cur.boundary() == oldBoundary) {
1007                                 cur.undispatched();
1008                                 cmd = FuncRequest(LFUN_FINISHED_RIGHT);
1009                         }
1010                 } else {
1011                         if (cur.reverseDirectionNeeded()) {
1012                                 cmd.setAction(cmd.action() == LFUN_WORD_RIGHT_SELECT ?
1013                                                 LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD);
1014                         } else {
1015                                 cmd.setAction(cmd.action() == LFUN_WORD_RIGHT_SELECT ?
1016                                                 LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD);
1017                         }
1018                         dispatch(cur, cmd);
1019                         return;
1020                 }
1021                 break;
1022
1023         case LFUN_WORD_FORWARD:
1024         case LFUN_WORD_FORWARD_SELECT: {
1025                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_FORWARD_SELECT);
1026                 bool const cur_moved = cursorForwardOneWord(cur);
1027                 needsUpdate |= cur_moved;
1028
1029                 if (!cur_moved && oldTopSlice == cur.top()
1030                                && cur.boundary() == oldBoundary) {
1031                         cur.undispatched();
1032                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
1033
1034                         // we will probably be moving out the inset, so we should execute
1035                         // the depm-mechanism, but only when the cursor has a place to
1036                         // go outside this inset, i.e. in a slice above.
1037                         if (cur.depth() > 1 && cur.pos() == cur.lastpos()
1038                                   && cur.pit() == cur.lastpit()) {
1039                                 // The cursor hasn't changed yet. To give the
1040                                 // DEPM the possibility of doing something we must
1041                                 // provide it with two different cursors.
1042                                 Cursor dummy = cur;
1043                                 dummy.pos() = dummy.pit() = 0;
1044                                 if (cur.bv().checkDepm(dummy, cur))
1045                                         cur.forceBufferUpdate();
1046                         }
1047                 }
1048                 break;
1049         }
1050
1051         case LFUN_WORD_LEFT:
1052         case LFUN_WORD_LEFT_SELECT:
1053                 if (lyxrc.visual_cursor) {
1054                         needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_LEFT_SELECT);
1055                         bool const cur_moved = cursorVisLeftOneWord(cur);
1056                         needsUpdate |= cur_moved;
1057                         if (!cur_moved && oldTopSlice == cur.top()
1058                                        && cur.boundary() == oldBoundary) {
1059                                 cur.undispatched();
1060                                 cmd = FuncRequest(LFUN_FINISHED_LEFT);
1061                         }
1062                 } else {
1063                         if (cur.reverseDirectionNeeded()) {
1064                                 cmd.setAction(cmd.action() == LFUN_WORD_LEFT_SELECT ?
1065                                                 LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD);
1066                         } else {
1067                                 cmd.setAction(cmd.action() == LFUN_WORD_LEFT_SELECT ?
1068                                                 LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD);
1069                         }
1070                         dispatch(cur, cmd);
1071                         return;
1072                 }
1073                 break;
1074
1075         case LFUN_WORD_BACKWARD:
1076         case LFUN_WORD_BACKWARD_SELECT: {
1077                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_BACKWARD_SELECT);
1078                 bool const cur_moved = cursorBackwardOneWord(cur);
1079                 needsUpdate |= cur_moved;
1080
1081                 if (!cur_moved && oldTopSlice == cur.top()
1082                                && cur.boundary() == oldBoundary) {
1083                         cur.undispatched();
1084                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
1085
1086                         // we will probably be moving out the inset, so we should execute
1087                         // the depm-mechanism, but only when the cursor has a place to
1088                         // go outside this inset, i.e. in a slice above.
1089                         if (cur.depth() > 1 && cur.pos() == 0
1090                                   && cur.pit() == 0) {
1091                                 // The cursor hasn't changed yet. To give the
1092                                 // DEPM the possibility of doing something we must
1093                                 // provide it with two different cursors.
1094                                 Cursor dummy = cur;
1095                                 dummy.pos() = cur.lastpos();
1096                                 dummy.pit() = cur.lastpit();
1097                                 if (cur.bv().checkDepm(dummy, cur))
1098                                         cur.forceBufferUpdate();
1099                         }
1100                 }
1101                 break;
1102         }
1103
1104         case LFUN_WORD_SELECT: {
1105                 selectWord(cur, WHOLE_WORD);
1106                 finishChange(cur, true);
1107                 break;
1108         }
1109
1110         case LFUN_NEWLINE_INSERT: {
1111                 InsetNewlineParams inp;
1112                 docstring arg = cmd.argument();
1113                 if (arg == "linebreak")
1114                         inp.kind = InsetNewlineParams::LINEBREAK;
1115                 else
1116                         inp.kind = InsetNewlineParams::NEWLINE;
1117                 cap::replaceSelection(cur);
1118                 cur.recordUndo();
1119                 cur.insert(new InsetNewline(inp));
1120                 cur.posForward();
1121                 moveCursor(cur, false);
1122                 break;
1123         }
1124
1125         case LFUN_TAB_INSERT: {
1126                 bool const multi_par_selection = cur.selection() &&
1127                         cur.selBegin().pit() != cur.selEnd().pit();
1128                 if (multi_par_selection) {
1129                         // If there is a multi-paragraph selection, a tab is inserted
1130                         // at the beginning of each paragraph.
1131                         cur.recordUndoSelection();
1132                         pit_type const pit_end = cur.selEnd().pit();
1133                         for (pit_type pit = cur.selBegin().pit(); pit <= pit_end; pit++) {
1134                                 pars_[pit].insertChar(0, '\t',
1135                                                       bv->buffer().params().track_changes);
1136                                 // Update the selection pos to make sure the selection does not
1137                                 // change as the inserted tab will increase the logical pos.
1138                                 if (cur.realAnchor().pit() == pit)
1139                                         cur.realAnchor().forwardPos();
1140                                 if (cur.pit() == pit)
1141                                         cur.forwardPos();
1142                         }
1143                         cur.finishUndo();
1144                 } else {
1145                         // Maybe we shouldn't allow tabs within a line, because they
1146                         // are not (yet) aligned as one might do expect.
1147                         FuncRequest ncmd(LFUN_SELF_INSERT, from_ascii("\t"));
1148                         dispatch(cur, ncmd);
1149                 }
1150                 break;
1151         }
1152
1153         case LFUN_TAB_DELETE: {
1154                 bool const tc = bv->buffer().params().track_changes;
1155                 if (cur.selection()) {
1156                         // If there is a selection, a tab (if present) is removed from
1157                         // the beginning of each paragraph.
1158                         cur.recordUndoSelection();
1159                         pit_type const pit_end = cur.selEnd().pit();
1160                         for (pit_type pit = cur.selBegin().pit(); pit <= pit_end; pit++) {
1161                                 Paragraph & par = paragraphs()[pit];
1162                                 if (par.empty())
1163                                         continue;
1164                                 char_type const c = par.getChar(0);
1165                                 if (c == '\t' || c == ' ') {
1166                                         // remove either 1 tab or 4 spaces.
1167                                         int const n = (c == ' ' ? 4 : 1);
1168                                         for (int i = 0; i < n
1169                                                   && !par.empty() && par.getChar(0) == c; ++i) {
1170                                                 if (cur.pit() == pit)
1171                                                         cur.posBackward();
1172                                                 if (cur.realAnchor().pit() == pit
1173                                                           && cur.realAnchor().pos() > 0 )
1174                                                         cur.realAnchor().backwardPos();
1175                                                 par.eraseChar(0, tc);
1176                                         }
1177                                 }
1178                         }
1179                         cur.finishUndo();
1180                 } else {
1181                         // If there is no selection, try to remove a tab or some spaces
1182                         // before the position of the cursor.
1183                         Paragraph & par = paragraphs()[cur.pit()];
1184                         pos_type const pos = cur.pos();
1185
1186                         if (pos == 0)
1187                                 break;
1188
1189                         char_type const c = par.getChar(pos - 1);
1190                         cur.recordUndo();
1191                         if (c == '\t') {
1192                                 cur.posBackward();
1193                                 par.eraseChar(cur.pos(), tc);
1194                         } else
1195                                 for (int n_spaces = 0;
1196                                      cur.pos() > 0
1197                                              && par.getChar(cur.pos() - 1) == ' '
1198                                              && n_spaces < 4;
1199                                      ++n_spaces) {
1200                                         cur.posBackward();
1201                                         par.eraseChar(cur.pos(), tc);
1202                                 }
1203                         cur.finishUndo();
1204                 }
1205                 break;
1206         }
1207
1208         case LFUN_CHAR_DELETE_FORWARD:
1209                 if (!cur.selection()) {
1210                         if (cur.pos() == cur.paragraph().size())
1211                                 // Par boundary, force full-screen update
1212                                 singleParUpdate = false;
1213                         else if (cmd.getArg(0) != "force" && cur.confirmDeletion()) {
1214                                 cur.resetAnchor();
1215                                 cur.selection(true);
1216                                 cur.posForward();
1217                                 cur.setSelection();
1218                                 break;
1219                         }
1220                         needsUpdate |= erase(cur);
1221                         cur.resetAnchor();
1222                 } else {
1223                         cutSelection(cur, false);
1224                         singleParUpdate = false;
1225                 }
1226                 moveCursor(cur, false);
1227                 break;
1228
1229         case LFUN_CHAR_DELETE_BACKWARD:
1230                 if (!cur.selection()) {
1231                         if (bv->getIntl().getTransManager().backspace()) {
1232                                 bool par_boundary = cur.pos() == 0;
1233                                 bool first_par = cur.pit() == 0;
1234                                 // Par boundary, full-screen update
1235                                 if (par_boundary)
1236                                         singleParUpdate = false;
1237                                 else if (cmd.getArg(0) != "force" && cur.confirmDeletion(true)) {
1238                                         cur.resetAnchor();
1239                                         cur.selection(true);
1240                                         cur.posBackward();
1241                                         cur.setSelection();
1242                                         break;
1243                                 }
1244                                 needsUpdate |= backspace(cur);
1245                                 cur.resetAnchor();
1246                                 if (par_boundary && !first_par && cur.pos() > 0
1247                                     && cur.paragraph().isEnvSeparator(cur.pos() - 1)) {
1248                                         needsUpdate |= backspace(cur);
1249                                         cur.resetAnchor();
1250                                 }
1251                         }
1252                 } else {
1253                         cutSelection(cur, false);
1254                         singleParUpdate = false;
1255                 }
1256                 break;
1257
1258         case LFUN_PARAGRAPH_BREAK: {
1259                 cap::replaceSelection(cur);
1260                 pit_type pit = cur.pit();
1261                 Paragraph const & par = pars_[pit];
1262                 bool lastpar = (pit == pit_type(pars_.size() - 1));
1263                 Paragraph const & nextpar = lastpar ? par : pars_[pit + 1];
1264                 pit_type prev = pit > 0 ? depthHook(pit, par.getDepth()) : pit;
1265                 if (prev < pit && cur.pos() == par.beginOfBody()
1266                     && !par.size() && !par.isEnvSeparator(cur.pos())
1267                     && !par.layout().keepempty
1268                     && !par.layout().isCommand()
1269                     && pars_[prev].layout() != par.layout()
1270                     && pars_[prev].layout().isEnvironment()
1271                     && !nextpar.isEnvSeparator(nextpar.beginOfBody())) {
1272                         if (par.layout().isEnvironment()
1273                             && pars_[prev].getDepth() == par.getDepth()) {
1274                                 docstring const layout = par.layout().name();
1275                                 DocumentClass const & tc = bv->buffer().params().documentClass();
1276                                 lyx::dispatch(FuncRequest(LFUN_LAYOUT, tc.plainLayout().name()));
1277                                 lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "plain"));
1278                                 lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse"));
1279                                 lyx::dispatch(FuncRequest(LFUN_LAYOUT, layout));
1280                         } else {
1281                                 lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "plain"));
1282                                 breakParagraph(cur);
1283                         }
1284                         Font const f(inherit_font, cur.current_font.language());
1285                         pars_[cur.pit() - 1].resetFonts(f);
1286                 } else {
1287                         if (par.isEnvSeparator(cur.pos()) && cmd.getArg(1) != "ignoresep")
1288                                 cur.posForward();
1289                         breakParagraph(cur, cmd.getArg(0) == "inverse");
1290                 }
1291                 cur.resetAnchor();
1292                 // If we have a list and autoinsert item insets,
1293                 // insert them now.
1294                 Layout::LaTeXArgMap args = par.layout().args();
1295                 for (auto const & thearg : args) {
1296                         Layout::latexarg arg = thearg.second;
1297                         if (arg.autoinsert && prefixIs(thearg.first, "item:")) {
1298                                 FuncRequest cmd2(LFUN_ARGUMENT_INSERT, thearg.first);
1299                                 lyx::dispatch(cmd2);
1300                         }
1301                 }
1302                 break;
1303         }
1304
1305         case LFUN_INSET_INSERT: {
1306                 cur.recordUndo();
1307
1308                 // We have to avoid triggering InstantPreview loading
1309                 // before inserting into the document. See bug #5626.
1310                 bool loaded = bv->buffer().isFullyLoaded();
1311                 bv->buffer().setFullyLoaded(false);
1312                 Inset * inset = createInset(&bv->buffer(), cmd);
1313                 bv->buffer().setFullyLoaded(loaded);
1314
1315                 if (inset) {
1316                         // FIXME (Abdel 01/02/2006):
1317                         // What follows would be a partial fix for bug 2154:
1318                         //   http://www.lyx.org/trac/ticket/2154
1319                         // This automatically put the label inset _after_ a
1320                         // numbered section. It should be possible to extend the mechanism
1321                         // to any kind of LateX environement.
1322                         // The correct way to fix that bug would be at LateX generation.
1323                         // I'll let the code here for reference as it could be used for some
1324                         // other feature like "automatic labelling".
1325                         /*
1326                         Paragraph & par = pars_[cur.pit()];
1327                         if (inset->lyxCode() == LABEL_CODE
1328                                 && !par.layout().counter.empty()) {
1329                                 // Go to the end of the paragraph
1330                                 // Warning: Because of Change-Tracking, the last
1331                                 // position is 'size()' and not 'size()-1':
1332                                 cur.pos() = par.size();
1333                                 // Insert a new paragraph
1334                                 FuncRequest fr(LFUN_PARAGRAPH_BREAK);
1335                                 dispatch(cur, fr);
1336                         }
1337                         */
1338                         if (cur.selection())
1339                                 cutSelection(cur, false);
1340                         cur.insert(inset);
1341                         cur.forceBufferUpdate();
1342                         if (inset->editable() && inset->asInsetText())
1343                                 inset->edit(cur, true);
1344                         else
1345                                 cur.posForward();
1346
1347                         // trigger InstantPreview now
1348                         if (inset->lyxCode() == EXTERNAL_CODE) {
1349                                 InsetExternal & ins =
1350                                         static_cast<InsetExternal &>(*inset);
1351                                 ins.updatePreview();
1352                         }
1353                 }
1354
1355                 break;
1356         }
1357
1358         case LFUN_INSET_DISSOLVE: {
1359                 if (dissolveInset(cur)) {
1360                         needsUpdate = true;
1361                         cur.forceBufferUpdate();
1362                 }
1363                 break;
1364         }
1365
1366         case LFUN_GRAPHICS_SET_GROUP: {
1367                 InsetGraphics * ins = graphics::getCurrentGraphicsInset(cur);
1368                 if (!ins)
1369                         break;
1370
1371                 cur.recordUndo();
1372
1373                 string id = to_utf8(cmd.argument());
1374                 string grp = graphics::getGroupParams(bv->buffer(), id);
1375                 InsetGraphicsParams tmp, inspar = ins->getParams();
1376
1377                 if (id.empty())
1378                         inspar.groupId = to_utf8(cmd.argument());
1379                 else {
1380                         InsetGraphics::string2params(grp, bv->buffer(), tmp);
1381                         tmp.filename = inspar.filename;
1382                         inspar = tmp;
1383                 }
1384
1385                 ins->setParams(inspar);
1386                 break;
1387         }
1388
1389         case LFUN_SPACE_INSERT:
1390                 if (cur.paragraph().layout().free_spacing)
1391                         insertChar(cur, ' ');
1392                 else {
1393                         doInsertInset(cur, this, cmd, false, false);
1394                         cur.posForward();
1395                 }
1396                 moveCursor(cur, false);
1397                 break;
1398
1399         case LFUN_SPECIALCHAR_INSERT: {
1400                 string const name = to_utf8(cmd.argument());
1401                 if (name == "hyphenation")
1402                         specialChar(cur, InsetSpecialChar::HYPHENATION);
1403                 else if (name == "allowbreak")
1404                         specialChar(cur, InsetSpecialChar::ALLOWBREAK);
1405                 else if (name == "ligature-break")
1406                         specialChar(cur, InsetSpecialChar::LIGATURE_BREAK);
1407                 else if (name == "slash")
1408                         specialChar(cur, InsetSpecialChar::SLASH);
1409                 else if (name == "nobreakdash")
1410                         specialChar(cur, InsetSpecialChar::NOBREAKDASH);
1411                 else if (name == "dots")
1412                         specialChar(cur, InsetSpecialChar::LDOTS);
1413                 else if (name == "end-of-sentence")
1414                         specialChar(cur, InsetSpecialChar::END_OF_SENTENCE);
1415                 else if (name == "menu-separator")
1416                         specialChar(cur, InsetSpecialChar::MENU_SEPARATOR);
1417                 else if (name == "lyx")
1418                         specialChar(cur, InsetSpecialChar::PHRASE_LYX);
1419                 else if (name == "tex")
1420                         specialChar(cur, InsetSpecialChar::PHRASE_TEX);
1421                 else if (name == "latex")
1422                         specialChar(cur, InsetSpecialChar::PHRASE_LATEX);
1423                 else if (name == "latex2e")
1424                         specialChar(cur, InsetSpecialChar::PHRASE_LATEX2E);
1425                 else if (name.empty())
1426                         lyxerr << "LyX function 'specialchar-insert' needs an argument." << endl;
1427                 else
1428                         lyxerr << "Wrong argument for LyX function 'specialchar-insert'." << endl;
1429                 break;
1430         }
1431
1432         case LFUN_IPAMACRO_INSERT: {
1433                 string const arg = cmd.getArg(0);
1434                 if (arg == "deco") {
1435                         // Open the inset, and move the current selection
1436                         // inside it.
1437                         doInsertInset(cur, this, cmd, true, true);
1438                         cur.posForward();
1439                         // Some insets are numbered, others are shown in the outline pane so
1440                         // let's update the labels and the toc backend.
1441                         cur.forceBufferUpdate();
1442                         break;
1443                 }
1444                 if (arg == "tone-falling")
1445                         ipaChar(cur, InsetIPAChar::TONE_FALLING);
1446                 else if (arg == "tone-rising")
1447                         ipaChar(cur, InsetIPAChar::TONE_RISING);
1448                 else if (arg == "tone-high-rising")
1449                         ipaChar(cur, InsetIPAChar::TONE_HIGH_RISING);
1450                 else if (arg == "tone-low-rising")
1451                         ipaChar(cur, InsetIPAChar::TONE_LOW_RISING);
1452                 else if (arg == "tone-high-rising-falling")
1453                         ipaChar(cur, InsetIPAChar::TONE_HIGH_RISING_FALLING);
1454                 else if (arg.empty())
1455                         lyxerr << "LyX function 'ipamacro-insert' needs an argument." << endl;
1456                 else
1457                         lyxerr << "Wrong argument for LyX function 'ipamacro-insert'." << endl;
1458                 break;
1459         }
1460
1461         case LFUN_WORD_UPCASE:
1462                 changeCase(cur, text_uppercase, cmd.getArg(0) == "partial");
1463                 break;
1464
1465         case LFUN_WORD_LOWCASE:
1466                 changeCase(cur, text_lowercase, cmd.getArg(0) == "partial");
1467                 break;
1468
1469         case LFUN_WORD_CAPITALIZE:
1470                 changeCase(cur, text_capitalization, cmd.getArg(0) == "partial");
1471                 break;
1472
1473         case LFUN_CHARS_TRANSPOSE:
1474                 charsTranspose(cur);
1475                 break;
1476
1477         case LFUN_PASTE: {
1478                 cur.message(_("Paste"));
1479                 LASSERT(cur.selBegin().idx() == cur.selEnd().idx(), break);
1480                 cap::replaceSelection(cur);
1481
1482                 // without argument?
1483                 string const arg = to_utf8(cmd.argument());
1484                 if (arg.empty()) {
1485                         bool tryGraphics = true;
1486                         if (theClipboard().isInternal())
1487                                 pasteFromStack(cur, bv->buffer().errorList("Paste"), 0);
1488                         else if (theClipboard().hasTextContents()) {
1489                                 if (pasteClipboardText(cur, bv->buffer().errorList("Paste"),
1490                                                        true, Clipboard::AnyTextType))
1491                                         tryGraphics = false;
1492                         }
1493                         if (tryGraphics && theClipboard().hasGraphicsContents())
1494                                 pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"));
1495                 } else if (isStrUnsignedInt(arg)) {
1496                         // we have a numerical argument
1497                         pasteFromStack(cur, bv->buffer().errorList("Paste"),
1498                                        convert<unsigned int>(arg));
1499                 } else if (arg == "html" || arg == "latex") {
1500                         Clipboard::TextType type = (arg == "html") ?
1501                                 Clipboard::HtmlTextType : Clipboard::LaTeXTextType;
1502                         pasteClipboardText(cur, bv->buffer().errorList("Paste"), true, type);
1503                 } else {
1504                         Clipboard::GraphicsType type = Clipboard::AnyGraphicsType;
1505                         if (arg == "pdf")
1506                                 type = Clipboard::PdfGraphicsType;
1507                         else if (arg == "png")
1508                                 type = Clipboard::PngGraphicsType;
1509                         else if (arg == "jpeg")
1510                                 type = Clipboard::JpegGraphicsType;
1511                         else if (arg == "linkback")
1512                                 type = Clipboard::LinkBackGraphicsType;
1513                         else if (arg == "emf")
1514                                 type = Clipboard::EmfGraphicsType;
1515                         else if (arg == "wmf")
1516                                 type = Clipboard::WmfGraphicsType;
1517                         else
1518                                 // we also check in getStatus()
1519                                 LYXERR0("Unrecognized graphics type: " << arg);
1520
1521                         pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"), type);
1522                 }
1523
1524                 bv->buffer().errors("Paste");
1525                 cur.clearSelection(); // bug 393
1526                 cur.finishUndo();
1527                 break;
1528         }
1529
1530         case LFUN_CUT:
1531                 cutSelection(cur, true);
1532                 cur.message(_("Cut"));
1533                 break;
1534
1535         case LFUN_COPY:
1536                 copySelection(cur);
1537                 cur.message(_("Copy"));
1538                 break;
1539
1540         case LFUN_SERVER_GET_XY:
1541                 cur.message(from_utf8(
1542                         convert<string>(tm->cursorX(cur.top(), cur.boundary()))
1543                         + ' ' + convert<string>(tm->cursorY(cur.top(), cur.boundary()))));
1544                 break;
1545
1546         case LFUN_SERVER_SET_XY: {
1547                 int x = 0;
1548                 int y = 0;
1549                 istringstream is(to_utf8(cmd.argument()));
1550                 is >> x >> y;
1551                 if (!is)
1552                         lyxerr << "SETXY: Could not parse coordinates in '"
1553                                << to_utf8(cmd.argument()) << endl;
1554                 else
1555                         tm->setCursorFromCoordinates(cur, x, y);
1556                 break;
1557         }
1558
1559         case LFUN_SERVER_GET_LAYOUT:
1560                 cur.message(cur.paragraph().layout().name());
1561                 break;
1562
1563         case LFUN_LAYOUT:
1564         case LFUN_LAYOUT_TOGGLE: {
1565                 bool const ignoreautonests = cmd.getArg(1) == "ignoreautonests";
1566                 docstring req_layout = ignoreautonests ? from_utf8(cmd.getArg(0)) : cmd.argument();
1567                 LYXERR(Debug::INFO, "LFUN_LAYOUT: (arg) " << to_utf8(req_layout));
1568
1569                 docstring layout = resolveLayout(req_layout, cur);
1570                 if (layout.empty()) {
1571                         cur.errorMessage(from_utf8(N_("Layout ")) + req_layout +
1572                                 from_utf8(N_(" not known")));
1573                         break;
1574                 }
1575
1576                 docstring const old_layout = cur.paragraph().layout().name();
1577                 bool change_layout = !isAlreadyLayout(layout, cur);
1578
1579                 if (cmd.action() == LFUN_LAYOUT_TOGGLE && !change_layout) {
1580                         change_layout = true;
1581                         layout = resolveLayout(docstring(), cur);
1582                 }
1583
1584                 if (change_layout) {
1585                         setLayout(cur, layout);
1586                         if (cur.pit() > 0 && !ignoreautonests) {
1587                                 set<docstring> const & autonests =
1588                                                 pars_[cur.pit() - 1].layout().autonests();
1589                                 set<docstring> const & autonested =
1590                                                 pars_[cur.pit()].layout().isAutonestedBy();
1591                                 if (autonests.find(layout) != autonests.end()
1592                                                 || autonested.find(old_layout) != autonested.end())
1593                                         lyx::dispatch(FuncRequest(LFUN_DEPTH_INCREMENT));
1594                         }
1595                 }
1596
1597                 DocumentClass const & tclass = bv->buffer().params().documentClass();
1598                 for (auto const & la_pair : tclass[layout].args()) {
1599                         Layout::latexarg const & arg = la_pair.second;
1600                         if (arg.autoinsert) {
1601                                 FuncRequest const cmd2(LFUN_ARGUMENT_INSERT, la_pair.first);
1602                                 lyx::dispatch(cmd2);
1603                         }
1604                 }
1605
1606                 break;
1607         }
1608
1609         case LFUN_ENVIRONMENT_SPLIT: {
1610                 bool const outer = cmd.argument() == "outer";
1611                 bool const previous = cmd.argument() == "previous";
1612                 bool const before = cmd.argument() == "before";
1613                 bool const normal = cmd.argument().empty();
1614                 Paragraph const & para = cur.paragraph();
1615                 docstring layout;
1616                 if (para.layout().isEnvironment())
1617                         layout = para.layout().name();
1618                 depth_type split_depth = cur.paragraph().params().depth();
1619                 depth_type nextpar_depth = 0;
1620                 if (outer || previous) {
1621                         // check if we have an environment in our scope
1622                         pit_type pit = cur.pit();
1623                         Paragraph cpar = pars_[pit];
1624                         while (true) {
1625                                 if (pit == 0)
1626                                         break;
1627                                 --pit;
1628                                 cpar = pars_[pit];
1629                                 if (layout.empty() && previous
1630                                     && cpar.layout().isEnvironment()
1631                                     && cpar.params().depth() <= split_depth)
1632                                         layout = cpar.layout().name();
1633                                 if (cpar.params().depth() < split_depth
1634                                     && cpar.layout().isEnvironment()) {
1635                                                 if (!previous)
1636                                                         layout = cpar.layout().name();
1637                                                 split_depth = cpar.params().depth();
1638                                 }
1639                                 if (cpar.params().depth() == 0)
1640                                         break;
1641                         }
1642                 }
1643                 if ((outer || normal) && cur.pit() < cur.lastpit()) {
1644                         // save nesting of following paragraph
1645                         Paragraph cpar = pars_[cur.pit() + 1];
1646                         nextpar_depth = cpar.params().depth();
1647                 }
1648                 if (before)
1649                         cur.top().setPitPos(cur.pit(), 0);
1650                 if (before || cur.pos() > 0)
1651                         lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK));
1652                 else if (previous && cur.nextInset() && cur.nextInset()->lyxCode() == SEPARATOR_CODE)
1653                         lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse ignoresep"));
1654                 if (outer) {
1655                         while (cur.paragraph().params().depth() > split_depth)
1656                                 lyx::dispatch(FuncRequest(LFUN_DEPTH_DECREMENT));
1657                 }
1658                 DocumentClass const & tc = bv->buffer().params().documentClass();
1659                 lyx::dispatch(FuncRequest(LFUN_LAYOUT, from_ascii("\"") + tc.plainLayout().name()
1660                                           + from_ascii("\" ignoreautonests")));
1661                 // FIXME: Bibitem mess!
1662                 if (cur.prevInset() && cur.prevInset()->lyxCode() == BIBITEM_CODE)
1663                         lyx::dispatch(FuncRequest(LFUN_CHAR_DELETE_BACKWARD));
1664                 lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "plain"));
1665                 if (before) {
1666                         cur.backwardPos();
1667                         lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse ignoresep"));
1668                         while (cur.paragraph().params().depth() < split_depth)
1669                                 lyx::dispatch(FuncRequest(LFUN_DEPTH_INCREMENT));
1670                 }
1671                 else
1672                         lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse"));
1673                 lyx::dispatch(FuncRequest(LFUN_LAYOUT, layout));
1674                 if ((outer || normal) && nextpar_depth > 0) {
1675                         // restore nesting of following paragraph
1676                         DocIterator scur = cur;
1677                         depth_type const max_depth = cur.paragraph().params().depth() + 1;
1678                         cur.forwardPar();
1679                         while (cur.paragraph().params().depth() < min(nextpar_depth, max_depth)) {
1680                                 depth_type const olddepth = cur.paragraph().params().depth();
1681                                 lyx::dispatch(FuncRequest(LFUN_DEPTH_INCREMENT));
1682                                 if (olddepth == cur.paragraph().params().depth())
1683                                         // leave loop if no incrementation happens
1684                                         break;
1685                         }
1686                         cur.setCursor(scur);
1687                 }
1688
1689                 break;
1690         }
1691
1692         case LFUN_CLIPBOARD_PASTE:
1693                 cap::replaceSelection(cur);
1694                 pasteClipboardText(cur, bv->buffer().errorList("Paste"),
1695                                cmd.argument() == "paragraph");
1696                 bv->buffer().errors("Paste");
1697                 break;
1698
1699         case LFUN_CLIPBOARD_PASTE_SIMPLE:
1700                 cap::replaceSelection(cur);
1701                 pasteSimpleText(cur, cmd.argument() == "paragraph");
1702                 break;
1703
1704         case LFUN_PRIMARY_SELECTION_PASTE:
1705                 cap::replaceSelection(cur);
1706                 pasteString(cur, theSelection().get(),
1707                             cmd.argument() == "paragraph");
1708                 break;
1709
1710         case LFUN_SELECTION_PASTE:
1711                 // Copy the selection buffer to the clipboard stack,
1712                 // because we want it to appear in the "Edit->Paste
1713                 // recent" menu.
1714                 cap::replaceSelection(cur);
1715                 cap::copySelectionToStack();
1716                 cap::pasteSelection(bv->cursor(), bv->buffer().errorList("Paste"));
1717                 bv->buffer().errors("Paste");
1718                 break;
1719
1720         case LFUN_QUOTE_INSERT: {
1721                 cap::replaceSelection(cur);
1722                 cur.recordUndo();
1723
1724                 Paragraph const & par = cur.paragraph();
1725                 pos_type pos = cur.pos();
1726                 // Ignore deleted text before cursor
1727                 while (pos > 0 && par.isDeleted(pos - 1))
1728                         --pos;
1729
1730                 bool const inner = (cmd.getArg(0) == "single" || cmd.getArg(0) == "inner");
1731
1732                 // Guess quote side.
1733                 // A space triggers an opening quote. This is passed if the preceding
1734                 // char/inset is a space or at paragraph start.
1735                 char_type c = ' ';
1736                 if (pos > 0 && !par.isSpace(pos - 1)) {
1737                         if (cur.prevInset() && cur.prevInset()->lyxCode() == QUOTE_CODE) {
1738                                 // If an opening double quotation mark precedes, and this
1739                                 // is a single quote, make it opening as well
1740                                 InsetQuotes & ins =
1741                                         static_cast<InsetQuotes &>(*cur.prevInset());
1742                                 string const type = ins.getType();
1743                                 if (!suffixIs(type, "ld") || !inner)
1744                                         c = par.getChar(pos - 1);
1745                         }
1746                         else if (!cur.prevInset()
1747                             || (cur.prevInset() && cur.prevInset()->isChar()))
1748                                 // If a char precedes, pass that and let InsetQuote decide
1749                                 c = par.getChar(pos - 1);
1750                         else {
1751                                 while (pos > 0) {
1752                                         if (par.getInset(pos - 1)
1753                                             && !par.getInset(pos - 1)->isPartOfTextSequence()) {
1754                                                 // skip "invisible" insets
1755                                                 --pos;
1756                                                 continue;
1757                                         }
1758                                         c = par.getChar(pos - 1);
1759                                         break;
1760                                 }
1761                         }
1762                 }
1763                 InsetQuotesParams::QuoteLevel const quote_level = inner
1764                                 ? InsetQuotesParams::SecondaryQuotes : InsetQuotesParams::PrimaryQuotes;
1765                 cur.insert(new InsetQuotes(cur.buffer(), c, quote_level, cmd.getArg(1), cmd.getArg(2)));
1766                 cur.buffer()->updateBuffer();
1767                 cur.posForward();
1768                 break;
1769         }
1770
1771         case LFUN_MOUSE_TRIPLE:
1772                 if (cmd.button() == mouse_button::button1) {
1773                         if (cur.pos() > 0)
1774                                 setCursor(cur, cur.pit(), 0);
1775                         bv->cursor() = cur;
1776                         cur.resetAnchor();
1777                         if (cur.pos() < cur.lastpos())
1778                                 setCursor(cur, cur.pit(), cur.lastpos());
1779                         cur.setSelection();
1780                         bv->cursor() = cur;
1781                 }
1782                 break;
1783
1784         case LFUN_MOUSE_DOUBLE:
1785                 if (cmd.button() == mouse_button::button1) {
1786                         selectWord(cur, WHOLE_WORD);
1787                         bv->cursor() = cur;
1788                 }
1789                 break;
1790
1791         // Single-click on work area
1792         case LFUN_MOUSE_PRESS: {
1793                 // We are not marking a selection with the keyboard in any case.
1794                 Cursor & bvcur = cur.bv().cursor();
1795                 bvcur.setMark(false);
1796                 switch (cmd.button()) {
1797                 case mouse_button::button1:
1798                         if (!bvcur.selection())
1799                                 // Set the cursor
1800                                 bvcur.resetAnchor();
1801                         if (!bv->mouseSetCursor(cur, cmd.modifier() == ShiftModifier))
1802                                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1803                         if (bvcur.wordSelection())
1804                                 selectWord(bvcur, WHOLE_WORD);
1805                         break;
1806
1807                 case mouse_button::button2:
1808                         if (lyxrc.mouse_middlebutton_paste) {
1809                                 // Middle mouse pasting.
1810                                 bv->mouseSetCursor(cur);
1811                                 lyx::dispatch(
1812                                         FuncRequest(LFUN_COMMAND_ALTERNATIVES,
1813                                                     "selection-paste ; primary-selection-paste paragraph"));
1814                         }
1815                         cur.noScreenUpdate();
1816                         break;
1817
1818                 case mouse_button::button3: {
1819                         // Don't do anything if we right-click a
1820                         // selection, a context menu will popup.
1821                         if (bvcur.selection() && cur >= bvcur.selectionBegin()
1822                             && cur < bvcur.selectionEnd()) {
1823                                 cur.noScreenUpdate();
1824                                 return;
1825                         }
1826                         if (!bv->mouseSetCursor(cur, false))
1827                                 cur.screenUpdateFlags(Update::FitCursor);
1828                         break;
1829                 }
1830
1831                 default:
1832                         break;
1833                 } // switch (cmd.button())
1834                 break;
1835         }
1836         case LFUN_MOUSE_MOTION: {
1837                 // Mouse motion with right or middle mouse do nothing for now.
1838                 if (cmd.button() != mouse_button::button1) {
1839                         cur.noScreenUpdate();
1840                         return;
1841                 }
1842                 // ignore motions deeper nested than the real anchor
1843                 Cursor & bvcur = cur.bv().cursor();
1844                 if (!bvcur.realAnchor().hasPart(cur)) {
1845                         cur.undispatched();
1846                         break;
1847                 }
1848                 CursorSlice old = bvcur.top();
1849
1850                 int const wh = bv->workHeight();
1851                 int const y = max(0, min(wh - 1, cmd.y()));
1852
1853                 tm->setCursorFromCoordinates(cur, cmd.x(), y);
1854                 cur.setTargetX(cmd.x());
1855                 // Don't allow selecting a separator inset
1856                 if (cur.pos() && cur.paragraph().isEnvSeparator(cur.pos() - 1))
1857                         cur.posBackward();
1858                 if (cmd.y() >= wh)
1859                         lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1860                 else if (cmd.y() < 0)
1861                         lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1862                 // This is to allow jumping over large insets
1863                 if (cur.top() == old) {
1864                         if (cmd.y() >= wh)
1865                                 lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1866                         else if (cmd.y() < 0)
1867                                 lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1868                 }
1869                 // We continue with our existing selection or start a new one, so don't
1870                 // reset the anchor.
1871                 bvcur.setCursor(cur);
1872                 bvcur.selection(true);
1873                 bvcur.setCurrentFont();
1874                 if (cur.top() == old) {
1875                         // We didn't move one iota, so no need to update the screen.
1876                         cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1877                         //cur.noScreenUpdate();
1878                         return;
1879                 }
1880                 break;
1881         }
1882
1883         case LFUN_MOUSE_RELEASE:
1884                 switch (cmd.button()) {
1885                 case mouse_button::button1:
1886                         // Cursor was set at LFUN_MOUSE_PRESS or LFUN_MOUSE_MOTION time.
1887                         // If there is a new selection, update persistent selection;
1888                         // otherwise, single click does not clear persistent selection
1889                         // buffer.
1890                         if (cur.selection()) {
1891                                 // Finish selection. If double click,
1892                                 // cur is moved to the end of word by
1893                                 // selectWord but bvcur is current
1894                                 // mouse position.
1895                                 cur.bv().cursor().setSelection();
1896                                 // We might have removed an empty but drawn selection
1897                                 // (probably a margin)
1898                                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1899                         } else
1900                                 cur.noScreenUpdate();
1901                         // FIXME: We could try to handle drag and drop of selection here.
1902                         return;
1903
1904                 case mouse_button::button2:
1905                         // Middle mouse pasting is handled at mouse press time,
1906                         // see LFUN_MOUSE_PRESS.
1907                         cur.noScreenUpdate();
1908                         return;
1909
1910                 case mouse_button::button3:
1911                         // Cursor was set at LFUN_MOUSE_PRESS time.
1912                         // FIXME: If there is a selection we could try to handle a special
1913                         // drag & drop context menu.
1914                         cur.noScreenUpdate();
1915                         return;
1916
1917                 case mouse_button::none:
1918                 case mouse_button::button4:
1919                 case mouse_button::button5:
1920                         break;
1921                 } // switch (cmd.button())
1922
1923                 break;
1924
1925         case LFUN_SELF_INSERT: {
1926                 if (cmd.argument().empty())
1927                         break;
1928
1929                 // Automatically delete the currently selected
1930                 // text and replace it with what is being
1931                 // typed in now. Depends on lyxrc settings
1932                 // "auto_region_delete", which defaults to
1933                 // true (on).
1934
1935                 if (lyxrc.auto_region_delete && cur.selection())
1936                         cutSelection(cur, false);
1937                 cur.clearSelection();
1938
1939                 for (char_type c : cmd.argument())
1940                         bv->translateAndInsert(c, this, cur);
1941
1942                 cur.resetAnchor();
1943                 moveCursor(cur, false);
1944                 cur.markNewWordPosition();
1945                 bv->bookmarkEditPosition();
1946                 break;
1947         }
1948
1949         case LFUN_HREF_INSERT: {
1950                 docstring content = cmd.argument();
1951                 if (content.empty() && cur.selection())
1952                         content = cur.selectionAsString(false);
1953
1954                 InsetCommandParams p(HYPERLINK_CODE);
1955                 if (!content.empty()){
1956                         // if it looks like a link, we'll put it as target,
1957                         // otherwise as name (bug #8792).
1958
1959                         // We can't do:
1960                         //   regex_match(to_utf8(content), matches, link_re)
1961                         // because smatch stores pointers to the substrings rather
1962                         // than making copies of them. And those pointers become
1963                         // invalid after regex_match returns, since it is then
1964                         // being given a temporary object. (Thanks to Georg for
1965                         // figuring that out.)
1966                         regex const link_re("^([a-z]+):.*");
1967                         smatch matches;
1968                         string const c = to_utf8(lowercase(content));
1969
1970                         if (c.substr(0,7) == "mailto:") {
1971                                 p["target"] = content;
1972                                 p["type"] = from_ascii("mailto:");
1973                         } else if (regex_match(c, matches, link_re)) {
1974                                 p["target"] = content;
1975                                 string protocol = matches.str(1);
1976                                 if (protocol == "file")
1977                                         p["type"] = from_ascii("file:");
1978                         } else
1979                                 p["name"] = content;
1980                 }
1981                 string const data = InsetCommand::params2string(p);
1982
1983                 // we need to have a target. if we already have one, then
1984                 // that gets used at the default for the name, too, which
1985                 // is probably what is wanted.
1986                 if (p["target"].empty()) {
1987                         bv->showDialog("href", data);
1988                 } else {
1989                         FuncRequest fr(LFUN_INSET_INSERT, data);
1990                         dispatch(cur, fr);
1991                 }
1992                 break;
1993         }
1994
1995         case LFUN_LABEL_INSERT: {
1996                 InsetCommandParams p(LABEL_CODE);
1997                 // Try to generate a valid label
1998                 p["name"] = (cmd.argument().empty()) ?
1999                         cur.getPossibleLabel() :
2000                         cmd.argument();
2001                 string const data = InsetCommand::params2string(p);
2002
2003                 if (cmd.argument().empty()) {
2004                         bv->showDialog("label", data);
2005                 } else {
2006                         FuncRequest fr(LFUN_INSET_INSERT, data);
2007                         dispatch(cur, fr);
2008                 }
2009                 break;
2010         }
2011
2012         case LFUN_INFO_INSERT: {
2013                 if (cmd.argument().empty()) {
2014                         bv->showDialog("info", cur.current_font.language()->lang());
2015                 } else {
2016                         Inset * inset;
2017                         inset = createInset(cur.buffer(), cmd);
2018                         if (!inset)
2019                                 break;
2020                         cur.recordUndo();
2021                         insertInset(cur, inset);
2022                         cur.forceBufferUpdate();
2023                         cur.posForward();
2024                 }
2025                 break;
2026         }
2027         case LFUN_CAPTION_INSERT:
2028         case LFUN_FOOTNOTE_INSERT:
2029         case LFUN_NOTE_INSERT:
2030         case LFUN_BOX_INSERT:
2031         case LFUN_BRANCH_INSERT:
2032         case LFUN_PHANTOM_INSERT:
2033         case LFUN_ERT_INSERT:
2034         case LFUN_LISTING_INSERT:
2035         case LFUN_MARGINALNOTE_INSERT:
2036         case LFUN_ARGUMENT_INSERT:
2037         case LFUN_INDEX_INSERT:
2038         case LFUN_PREVIEW_INSERT:
2039         case LFUN_SCRIPT_INSERT:
2040         case LFUN_IPA_INSERT:
2041                 // Open the inset, and move the current selection
2042                 // inside it.
2043                 doInsertInset(cur, this, cmd, true, true);
2044                 cur.posForward();
2045                 if (act == LFUN_SCRIPT_INSERT) {
2046                         /* Script insets change the font style in metrics(), and
2047                          * this is used to compute the height of the caret
2048                          * (because the font is stored in TextMetrics::font_).
2049                          * When we insert, we have to make sure that metrics are
2050                          * computed so that the caret height is wrong. Arguably,
2051                          * this is hackish.*/
2052                         bv->processUpdateFlags(Update::SinglePar);
2053                 }
2054                 cur.setCurrentFont();
2055                 // Some insets are numbered, others are shown in the outline pane so
2056                 // let's update the labels and the toc backend.
2057                 cur.forceBufferUpdate();
2058                 break;
2059
2060         case LFUN_FLEX_INSERT: {
2061                 // Open the inset, and move the current selection
2062                 // inside it.
2063                 bool const sel = cur.selection();
2064                 doInsertInset(cur, this, cmd, true, true);
2065                 // Insert auto-insert arguments
2066                 bool autoargs = false;
2067                 Layout::LaTeXArgMap args = cur.inset().getLayout().latexargs();
2068                 Layout::LaTeXArgMap::const_iterator lait = args.begin();
2069                 Layout::LaTeXArgMap::const_iterator const laend = args.end();
2070                 for (; lait != laend; ++lait) {
2071                         Layout::latexarg arg = (*lait).second;
2072                         if (arg.autoinsert) {
2073                                 // The cursor might have been invalidated by the replaceSelection.
2074                                 cur.buffer()->changed(true);
2075                                 FuncRequest cmd2(LFUN_ARGUMENT_INSERT, (*lait).first);
2076                                 lyx::dispatch(cmd2);
2077                                 autoargs = true;
2078                         }
2079                 }
2080                 if (!autoargs) {
2081                         if (sel)
2082                                 cur.leaveInset(cur.inset());
2083                         cur.posForward();
2084                 }
2085                 // Some insets are numbered, others are shown in the outline pane so
2086                 // let's update the labels and the toc backend.
2087                 cur.forceBufferUpdate();
2088                 break;
2089         }
2090
2091         case LFUN_TABULAR_INSERT: {
2092                 // if there were no arguments, just open the dialog
2093                 if (cmd.argument().empty()) {
2094                         bv->showDialog("tabularcreate");
2095                         break;
2096                 } else if (cur.buffer()->masterParams().tablestyle != "default"
2097                            || bv->buffer().params().documentClass().tablestyle() != "default") {
2098                         string tabstyle = cur.buffer()->masterParams().tablestyle;
2099                         if (tabstyle == "default")
2100                                 tabstyle = bv->buffer().params().documentClass().tablestyle();
2101                         if (!libFileSearch("tabletemplates", tabstyle + ".lyx").empty()) {
2102                                 FuncRequest fr(LFUN_TABULAR_STYLE_INSERT,
2103                                                tabstyle + " " + to_ascii(cmd.argument()));
2104                                 lyx::dispatch(fr);
2105                                 break;
2106                         } else
2107                                 // Unknown style. Report and fall back to default.
2108                                 cur.errorMessage(from_utf8(N_("Table Style ")) + from_utf8(tabstyle) +
2109                                                      from_utf8(N_(" not known")));
2110
2111                 }
2112                 if (doInsertInset(cur, this, cmd, false, true))
2113                         cur.posForward();
2114                 break;
2115         }
2116
2117         case LFUN_TABULAR_STYLE_INSERT: {
2118                 string const style = cmd.getArg(0);
2119                 string const rows = cmd.getArg(1);
2120                 string const cols = cmd.getArg(2);
2121                 if (cols.empty() || !isStrInt(cols)
2122                     || rows.empty() || !isStrInt(rows))
2123                         break;
2124                 int const r = convert<int>(rows);
2125                 int const c = convert<int>(cols);
2126
2127                 string suffix;
2128                 if (r == 1)
2129                         suffix = "_1x1";
2130                 else if (r == 2)
2131                         suffix = "_1x2";
2132                 FileName const tabstyle = libFileSearch("tabletemplates",
2133                                                         style + suffix + ".lyx", "lyx");
2134                 if (tabstyle.empty())
2135                             break;
2136                 UndoGroupHelper ugh(cur.buffer());
2137                 cur.recordUndo();
2138                 FuncRequest cmd2(LFUN_FILE_INSERT, tabstyle.absFileName() + " ignorelang");
2139                 lyx::dispatch(cmd2);
2140                 // go into table
2141                 cur.backwardPos();
2142                 if (r > 2) {
2143                         // move one cell up to middle cell
2144                         cur.up();
2145                         // add the missing rows
2146                         int const addrows = r - 3;
2147                         for (int i = 0 ; i < addrows ; ++i) {
2148                                 FuncRequest fr(LFUN_TABULAR_FEATURE, "append-row");
2149                                 lyx::dispatch(fr);
2150                         }
2151                 }
2152                 // add the missing columns
2153                 int const addcols = c - 1;
2154                 for (int i = 0 ; i < addcols ; ++i) {
2155                         FuncRequest fr(LFUN_TABULAR_FEATURE, "append-column");
2156                         lyx::dispatch(fr);
2157                 }
2158                 if (r > 1)
2159                         // go to first cell
2160                         cur.up();
2161                 break;
2162         }
2163
2164         case LFUN_FLOAT_INSERT:
2165         case LFUN_FLOAT_WIDE_INSERT:
2166         case LFUN_WRAP_INSERT: {
2167                 // will some content be moved into the inset?
2168                 bool const content = cur.selection();
2169                 // does the content consist of multiple paragraphs?
2170                 bool const singlepar = (cur.selBegin().pit() == cur.selEnd().pit());
2171
2172                 doInsertInset(cur, this, cmd, true, true);
2173                 cur.posForward();
2174
2175                 // If some single-par content is moved into the inset,
2176                 // doInsertInset puts the cursor outside the inset.
2177                 // To insert the caption we put it back into the inset.
2178                 // FIXME cleanup doInsertInset to avoid such dances!
2179                 if (content && singlepar)
2180                         cur.backwardPos();
2181
2182                 ParagraphList & pars = cur.text()->paragraphs();
2183
2184                 DocumentClass const & tclass = bv->buffer().params().documentClass();
2185
2186                 // add a separate paragraph for the caption inset
2187                 pars.push_back(Paragraph());
2188                 pars.back().setInsetOwner(&cur.text()->inset());
2189                 pars.back().setPlainOrDefaultLayout(tclass);
2190                 int cap_pit = pars.size() - 1;
2191
2192                 // if an empty inset was created, we create an additional empty
2193                 // paragraph at the bottom so that the user can choose where to put
2194                 // the graphics (or table).
2195                 if (!content) {
2196                         pars.push_back(Paragraph());
2197                         pars.back().setInsetOwner(&cur.text()->inset());
2198                         pars.back().setPlainOrDefaultLayout(tclass);
2199                 }
2200
2201                 // reposition the cursor to the caption
2202                 cur.pit() = cap_pit;
2203                 cur.pos() = 0;
2204                 // FIXME: This Text/Cursor dispatch handling is a mess!
2205                 // We cannot use Cursor::dispatch here it needs access to up to
2206                 // date metrics.
2207                 FuncRequest cmd_caption(LFUN_CAPTION_INSERT);
2208                 doInsertInset(cur, cur.text(), cmd_caption, true, false);
2209                 cur.forceBufferUpdate();
2210                 cur.screenUpdateFlags(Update::Force);
2211                 // FIXME: When leaving the Float (or Wrap) inset we should
2212                 // delete any empty paragraph left above or below the
2213                 // caption.
2214                 break;
2215         }
2216
2217         case LFUN_NOMENCL_INSERT: {
2218                 InsetCommandParams p(NOMENCL_CODE);
2219                 if (cmd.argument().empty()) {
2220                         p["symbol"] =
2221                                 bv->cursor().innerText()->getStringForDialog(bv->cursor());
2222                         cur.clearSelection();
2223                 } else
2224                         p["symbol"] = cmd.argument();
2225                 string const data = InsetCommand::params2string(p);
2226                 bv->showDialog("nomenclature", data);
2227                 break;
2228         }
2229
2230         case LFUN_INDEX_PRINT: {
2231                 InsetCommandParams p(INDEX_PRINT_CODE);
2232                 if (cmd.argument().empty())
2233                         p["type"] = from_ascii("idx");
2234                 else
2235                         p["type"] = cmd.argument();
2236                 string const data = InsetCommand::params2string(p);
2237                 FuncRequest fr(LFUN_INSET_INSERT, data);
2238                 dispatch(cur, fr);
2239                 break;
2240         }
2241
2242         case LFUN_NOMENCL_PRINT:
2243         case LFUN_NEWPAGE_INSERT:
2244                 // do nothing fancy
2245                 doInsertInset(cur, this, cmd, false, false);
2246                 cur.posForward();
2247                 break;
2248
2249         case LFUN_SEPARATOR_INSERT: {
2250                 doInsertInset(cur, this, cmd, false, false);
2251                 cur.posForward();
2252                 // remove a following space
2253                 Paragraph & par = cur.paragraph();
2254                 if (cur.pos() != cur.lastpos() && par.isLineSeparator(cur.pos()))
2255                     par.eraseChar(cur.pos(), cur.buffer()->params().track_changes);
2256                 break;
2257         }
2258
2259         case LFUN_DEPTH_DECREMENT:
2260                 changeDepth(cur, DEC_DEPTH);
2261                 break;
2262
2263         case LFUN_DEPTH_INCREMENT:
2264                 changeDepth(cur, INC_DEPTH);
2265                 break;
2266
2267         case LFUN_REGEXP_MODE:
2268                 regexpDispatch(cur, cmd);
2269                 break;
2270
2271         case LFUN_MATH_MODE: {
2272                 if (cmd.argument() == "on" || cmd.argument() == "") {
2273                         // don't pass "on" as argument
2274                         // (it would appear literally in the first cell)
2275                         docstring sel = cur.selectionAsString(false);
2276                         InsetMathMacroTemplate * macro = new InsetMathMacroTemplate(cur.buffer());
2277                         // create a macro template if we see "\\newcommand" somewhere, and
2278                         // an ordinary formula otherwise
2279                         if (!sel.empty()
2280                                 && (sel.find(from_ascii("\\newcommand")) != string::npos
2281                                         || sel.find(from_ascii("\\newlyxcommand")) != string::npos
2282                                         || sel.find(from_ascii("\\def")) != string::npos)
2283                                 && macro->fromString(sel)) {
2284                                 cur.recordUndo();
2285                                 replaceSelection(cur);
2286                                 cur.insert(macro);
2287                         } else {
2288                                 // no meaningful macro template was found
2289                                 delete macro;
2290                                 mathDispatch(cur,FuncRequest(LFUN_MATH_MODE));
2291                         }
2292                 } else
2293                         // The argument is meaningful
2294                         // We replace cmd with LFUN_MATH_INSERT because LFUN_MATH_MODE
2295                         // has a different meaning in math mode
2296                         mathDispatch(cur, FuncRequest(LFUN_MATH_INSERT,cmd.argument()));
2297                 break;
2298         }
2299
2300         case LFUN_MATH_MACRO:
2301                 if (cmd.argument().empty())
2302                         cur.errorMessage(from_utf8(N_("Missing argument")));
2303                 else {
2304                         cur.recordUndo();
2305                         string s = to_utf8(cmd.argument());
2306                         string const s1 = token(s, ' ', 1);
2307                         int const nargs = s1.empty() ? 0 : convert<int>(s1);
2308                         string const s2 = token(s, ' ', 2);
2309                         MacroType type = MacroTypeNewcommand;
2310                         if (s2 == "def")
2311                                 type = MacroTypeDef;
2312                         InsetMathMacroTemplate * inset = new InsetMathMacroTemplate(cur.buffer(),
2313                                 from_utf8(token(s, ' ', 0)), nargs, false, type);
2314                         inset->setBuffer(bv->buffer());
2315                         insertInset(cur, inset);
2316
2317                         // enter macro inset and select the name
2318                         cur.push(*inset);
2319                         cur.top().pos() = cur.top().lastpos();
2320                         cur.resetAnchor();
2321                         cur.selection(true);
2322                         cur.top().pos() = 0;
2323                 }
2324                 break;
2325
2326         case LFUN_MATH_DISPLAY:
2327         case LFUN_MATH_SUBSCRIPT:
2328         case LFUN_MATH_SUPERSCRIPT:
2329         case LFUN_MATH_INSERT:
2330         case LFUN_MATH_AMS_MATRIX:
2331         case LFUN_MATH_MATRIX:
2332         case LFUN_MATH_DELIM:
2333         case LFUN_MATH_BIGDELIM:
2334                 mathDispatch(cur, cmd);
2335                 break;
2336
2337         case LFUN_FONT_EMPH: {
2338                 Font font(ignore_font, ignore_language);
2339                 font.fontInfo().setEmph(FONT_TOGGLE);
2340                 toggleAndShow(cur, this, font);
2341                 break;
2342         }
2343
2344         case LFUN_FONT_ITAL: {
2345                 Font font(ignore_font, ignore_language);
2346                 font.fontInfo().setShape(ITALIC_SHAPE);
2347                 toggleAndShow(cur, this, font);
2348                 break;
2349         }
2350
2351         case LFUN_FONT_BOLD:
2352         case LFUN_FONT_BOLDSYMBOL: {
2353                 Font font(ignore_font, ignore_language);
2354                 font.fontInfo().setSeries(BOLD_SERIES);
2355                 toggleAndShow(cur, this, font);
2356                 break;
2357         }
2358
2359         case LFUN_FONT_NOUN: {
2360                 Font font(ignore_font, ignore_language);
2361                 font.fontInfo().setNoun(FONT_TOGGLE);
2362                 toggleAndShow(cur, this, font);
2363                 break;
2364         }
2365
2366         case LFUN_FONT_TYPEWRITER: {
2367                 Font font(ignore_font, ignore_language);
2368                 font.fontInfo().setFamily(TYPEWRITER_FAMILY); // no good
2369                 toggleAndShow(cur, this, font);
2370                 break;
2371         }
2372
2373         case LFUN_FONT_SANS: {
2374                 Font font(ignore_font, ignore_language);
2375                 font.fontInfo().setFamily(SANS_FAMILY);
2376                 toggleAndShow(cur, this, font);
2377                 break;
2378         }
2379
2380         case LFUN_FONT_ROMAN: {
2381                 Font font(ignore_font, ignore_language);
2382                 font.fontInfo().setFamily(ROMAN_FAMILY);
2383                 toggleAndShow(cur, this, font);
2384                 break;
2385         }
2386
2387         case LFUN_FONT_DEFAULT: {
2388                 Font font(inherit_font, ignore_language);
2389                 toggleAndShow(cur, this, font);
2390                 break;
2391         }
2392
2393         case LFUN_FONT_STRIKEOUT: {
2394                 Font font(ignore_font, ignore_language);
2395                 font.fontInfo().setStrikeout(FONT_TOGGLE);
2396                 toggleAndShow(cur, this, font);
2397                 break;
2398         }
2399
2400         case LFUN_FONT_CROSSOUT: {
2401                 Font font(ignore_font, ignore_language);
2402                 font.fontInfo().setXout(FONT_TOGGLE);
2403                 toggleAndShow(cur, this, font);
2404                 break;
2405         }
2406
2407         case LFUN_FONT_UNDERUNDERLINE: {
2408                 Font font(ignore_font, ignore_language);
2409                 font.fontInfo().setUuline(FONT_TOGGLE);
2410                 toggleAndShow(cur, this, font);
2411                 break;
2412         }
2413
2414         case LFUN_FONT_UNDERWAVE: {
2415                 Font font(ignore_font, ignore_language);
2416                 font.fontInfo().setUwave(FONT_TOGGLE);
2417                 toggleAndShow(cur, this, font);
2418                 break;
2419         }
2420
2421         case LFUN_FONT_UNDERLINE: {
2422                 Font font(ignore_font, ignore_language);
2423                 font.fontInfo().setUnderbar(FONT_TOGGLE);
2424                 toggleAndShow(cur, this, font);
2425                 break;
2426         }
2427
2428         case LFUN_FONT_SIZE: {
2429                 Font font(ignore_font, ignore_language);
2430                 setLyXSize(to_utf8(cmd.argument()), font.fontInfo());
2431                 toggleAndShow(cur, this, font);
2432                 break;
2433         }
2434
2435         case LFUN_LANGUAGE: {
2436                 string const lang_arg = cmd.getArg(0);
2437                 bool const reset = (lang_arg.empty() || lang_arg == "reset");
2438                 Language const * lang =
2439                         reset ? reset_language
2440                               : languages.getLanguage(lang_arg);
2441                 // we allow reset_language, which is 0, but only if it
2442                 // was requested via empty or "reset" arg.
2443                 if (!lang && !reset)
2444                         break;
2445                 bool const toggle = (cmd.getArg(1) != "set");
2446                 selectWordWhenUnderCursor(cur, WHOLE_WORD_STRICT);
2447                 Font font(ignore_font, lang);
2448                 toggleAndShow(cur, this, font, toggle);
2449                 // We need a buffer update if we change the language
2450                 // of an info inset
2451                 if (cur.insetInSelection(INFO_CODE))
2452                         cur.forceBufferUpdate();
2453                 break;
2454         }
2455
2456         case LFUN_TEXTSTYLE_APPLY: {
2457                 unsigned int num = 0;
2458                 string const arg = to_utf8(cmd.argument());
2459                 // Argument?
2460                 if (!arg.empty()) {
2461                         if (isStrUnsignedInt(arg)) {
2462                                 num = convert<uint>(arg);
2463                                 if (num >= freeFonts.size()) {
2464                                         cur.message(_("Invalid argument (number exceeds stack size)!"));
2465                                         break;
2466                                 }
2467                         } else {
2468                                 cur.message(_("Invalid argument (must be a non-negative number)!"));
2469                                 break;
2470                         }
2471                 }
2472                 toggleAndShow(cur, this, freeFonts[num].second, toggleall);
2473                 cur.message(bformat(_("Text properties applied: %1$s"), freeFonts[num].first));
2474                 break;
2475         }
2476
2477         // Set the freefont using the contents of \param data dispatched from
2478         // the frontends and apply it at the current cursor location.
2479         case LFUN_TEXTSTYLE_UPDATE: {
2480                 Font font(ignore_font, ignore_language);
2481                 bool toggle;
2482                 if (font.fromString(to_utf8(cmd.argument()), toggle)) {
2483                         docstring const props = font.stateText(&bv->buffer().params(), true);
2484                         freeFonts.push(make_pair(props, font));
2485                         toggleall = toggle;
2486                         toggleAndShow(cur, this, font, toggleall);
2487                         // We need a buffer update if we change the language
2488                         // of an info inset
2489                         if (cur.insetInSelection(INFO_CODE))
2490                                 cur.forceBufferUpdate();
2491                         cur.message(bformat(_("Text properties applied: %1$s"), props));
2492                 } else
2493                         LYXERR0("Invalid argument of textstyle-update");
2494                 break;
2495         }
2496
2497         case LFUN_FINISHED_LEFT:
2498                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_LEFT:\n" << cur);
2499                 // We're leaving an inset, going left. If the inset is LTR, we're
2500                 // leaving from the front, so we should not move (remain at --- but
2501                 // not in --- the inset). If the inset is RTL, move left, without
2502                 // entering the inset itself; i.e., move to after the inset.
2503                 if (cur.paragraph().getFontSettings(
2504                                 cur.bv().buffer().params(), cur.pos()).isRightToLeft())
2505                         cursorVisLeft(cur, true);
2506                 break;
2507
2508         case LFUN_FINISHED_RIGHT:
2509                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_RIGHT:\n" << cur);
2510                 // We're leaving an inset, going right. If the inset is RTL, we're
2511                 // leaving from the front, so we should not move (remain at --- but
2512                 // not in --- the inset). If the inset is LTR, move right, without
2513                 // entering the inset itself; i.e., move to after the inset.
2514                 if (!cur.paragraph().getFontSettings(
2515                                 cur.bv().buffer().params(), cur.pos()).isRightToLeft())
2516                         cursorVisRight(cur, true);
2517                 break;
2518
2519         case LFUN_FINISHED_BACKWARD:
2520                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_BACKWARD:\n" << cur);
2521                 cur.setCurrentFont();
2522                 break;
2523
2524         case LFUN_FINISHED_FORWARD:
2525                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_FORWARD:\n" << cur);
2526                 ++cur.pos();
2527                 cur.setCurrentFont();
2528                 break;
2529
2530         case LFUN_LAYOUT_PARAGRAPH: {
2531                 string data;
2532                 params2string(cur.paragraph(), data);
2533                 data = "show\n" + data;
2534                 bv->showDialog("paragraph", data);
2535                 break;
2536         }
2537
2538         case LFUN_PARAGRAPH_UPDATE: {
2539                 string data;
2540                 params2string(cur.paragraph(), data);
2541
2542                 // Will the paragraph accept changes from the dialog?
2543                 bool const accept =
2544                         cur.inset().allowParagraphCustomization(cur.idx());
2545
2546                 data = "update " + convert<string>(accept) + '\n' + data;
2547                 bv->updateDialog("paragraph", data);
2548                 break;
2549         }
2550
2551         case LFUN_ACCENT_UMLAUT:
2552         case LFUN_ACCENT_CIRCUMFLEX:
2553         case LFUN_ACCENT_GRAVE:
2554         case LFUN_ACCENT_ACUTE:
2555         case LFUN_ACCENT_TILDE:
2556         case LFUN_ACCENT_PERISPOMENI:
2557         case LFUN_ACCENT_CEDILLA:
2558         case LFUN_ACCENT_MACRON:
2559         case LFUN_ACCENT_DOT:
2560         case LFUN_ACCENT_UNDERDOT:
2561         case LFUN_ACCENT_UNDERBAR:
2562         case LFUN_ACCENT_CARON:
2563         case LFUN_ACCENT_BREVE:
2564         case LFUN_ACCENT_TIE:
2565         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
2566         case LFUN_ACCENT_CIRCLE:
2567         case LFUN_ACCENT_OGONEK:
2568                 theApp()->handleKeyFunc(cmd.action());
2569                 if (!cmd.argument().empty())
2570                         // FIXME: Are all these characters encoded in one byte in utf8?
2571                         bv->translateAndInsert(cmd.argument()[0], this, cur);
2572                 cur.screenUpdateFlags(Update::FitCursor);
2573                 break;
2574
2575         case LFUN_FLOAT_LIST_INSERT: {
2576                 DocumentClass const & tclass = bv->buffer().params().documentClass();
2577                 if (tclass.floats().typeExist(to_utf8(cmd.argument()))) {
2578                         cur.recordUndo();
2579                         if (cur.selection())
2580                                 cutSelection(cur, false);
2581                         breakParagraph(cur);
2582
2583                         if (cur.lastpos() != 0) {
2584                                 cursorBackward(cur);
2585                                 breakParagraph(cur);
2586                         }
2587
2588                         docstring const laystr = cur.inset().usePlainLayout() ?
2589                                 tclass.plainLayoutName() :
2590                                 tclass.defaultLayoutName();
2591                         setLayout(cur, laystr);
2592                         ParagraphParameters p;
2593                         // FIXME If this call were replaced with one to clearParagraphParams(),
2594                         // then we could get rid of this method altogether.
2595                         setParagraphs(cur, p);
2596                         // FIXME This should be simplified when InsetFloatList takes a
2597                         // Buffer in its constructor.
2598                         InsetFloatList * ifl = new InsetFloatList(cur.buffer(), to_utf8(cmd.argument()));
2599                         ifl->setBuffer(bv->buffer());
2600                         insertInset(cur, ifl);
2601                         cur.posForward();
2602                 } else {
2603                         lyxerr << "Non-existent float type: "
2604                                << to_utf8(cmd.argument()) << endl;
2605                 }
2606                 break;
2607         }
2608
2609         case LFUN_CHANGE_ACCEPT: {
2610                 acceptOrRejectChanges(cur, ACCEPT);
2611                 break;
2612         }
2613
2614         case LFUN_CHANGE_REJECT: {
2615                 acceptOrRejectChanges(cur, REJECT);
2616                 break;
2617         }
2618
2619         case LFUN_THESAURUS_ENTRY: {
2620                 Language const * language = cur.getFont().language();
2621                 docstring arg = cmd.argument();
2622                 if (arg.empty()) {
2623                         arg = cur.selectionAsString(false);
2624                         // FIXME
2625                         if (arg.size() > 100 || arg.empty()) {
2626                                 // Get word or selection
2627                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2628                                 arg = cur.selectionAsString(false);
2629                                 arg += " lang=" + from_ascii(language->lang());
2630                         }
2631                 } else {
2632                         string lang = cmd.getArg(1);
2633                         // This duplicates the code in GuiThesaurus::initialiseParams
2634                         if (prefixIs(lang, "lang=")) {
2635                                 language = languages.getLanguage(lang.substr(5));
2636                                 if (!language)
2637                                         language = cur.getFont().language();
2638                         }
2639                 }
2640                 string lang = language->code();
2641                 if (lyxrc.thesaurusdir_path.empty() && !thesaurus.thesaurusInstalled(from_ascii(lang))) {
2642                         LYXERR(Debug::ACTION, "Command " << cmd << ". Thesaurus not found for language " << lang);
2643                         frontend::Alert::warning(_("Path to thesaurus directory not set!"),
2644                                         _("The path to the thesaurus directory has not been specified.\n"
2645                                           "The thesaurus is not functional.\n"
2646                                           "Please refer to sec. 6.15.1 of the User's Guide for setup\n"
2647                                           "instructions."));
2648                 }
2649                 bv->showDialog("thesaurus", to_utf8(arg));
2650                 break;
2651         }
2652
2653         case LFUN_SPELLING_ADD: {
2654                 Language const * language = getLanguage(cur, cmd.getArg(1));
2655                 docstring word = from_utf8(cmd.getArg(0));
2656                 if (word.empty()) {
2657                         word = cur.selectionAsString(false);
2658                         // FIXME
2659                         if (word.size() > 100 || word.empty()) {
2660                                 // Get word or selection
2661                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2662                                 word = cur.selectionAsString(false);
2663                         }
2664                 }
2665                 WordLangTuple wl(word, language);
2666                 theSpellChecker()->insert(wl);
2667                 break;
2668         }
2669
2670         case LFUN_SPELLING_IGNORE: {
2671                 Language const * language = getLanguage(cur, cmd.getArg(1));
2672                 docstring word = from_utf8(cmd.getArg(0));
2673                 if (word.empty()) {
2674                         word = cur.selectionAsString(false);
2675                         // FIXME
2676                         if (word.size() > 100 || word.empty()) {
2677                                 // Get word or selection
2678                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2679                                 word = cur.selectionAsString(false);
2680                         }
2681                 }
2682                 WordLangTuple wl(word, language);
2683                 theSpellChecker()->accept(wl);
2684                 break;
2685         }
2686
2687         case LFUN_SPELLING_REMOVE: {
2688                 Language const * language = getLanguage(cur, cmd.getArg(1));
2689                 docstring word = from_utf8(cmd.getArg(0));
2690                 if (word.empty()) {
2691                         word = cur.selectionAsString(false);
2692                         // FIXME
2693                         if (word.size() > 100 || word.empty()) {
2694                                 // Get word or selection
2695                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2696                                 word = cur.selectionAsString(false);
2697                         }
2698                 }
2699                 WordLangTuple wl(word, language);
2700                 theSpellChecker()->remove(wl);
2701                 break;
2702         }
2703
2704         case LFUN_PARAGRAPH_PARAMS_APPLY: {
2705                 // Given data, an encoding of the ParagraphParameters
2706                 // generated in the Paragraph dialog, this function sets
2707                 // the current paragraph, or currently selected paragraphs,
2708                 // appropriately.
2709                 // NOTE: This function overrides all existing settings.
2710                 setParagraphs(cur, cmd.argument());
2711                 cur.message(_("Paragraph layout set"));
2712                 break;
2713         }
2714
2715         case LFUN_PARAGRAPH_PARAMS: {
2716                 // Given data, an encoding of the ParagraphParameters as we'd
2717                 // find them in a LyX file, this function modifies the current paragraph,
2718                 // or currently selected paragraphs.
2719                 // NOTE: This function only modifies, and does not override, existing
2720                 // settings.
2721                 setParagraphs(cur, cmd.argument(), true);
2722                 cur.message(_("Paragraph layout set"));
2723                 break;
2724         }
2725
2726         case LFUN_ESCAPE:
2727                 if (cur.selection()) {
2728                         cur.selection(false);
2729                 } else {
2730                         cur.undispatched();
2731                         // This used to be LFUN_FINISHED_RIGHT, I think FORWARD is more
2732                         // correct, but I'm not 100% sure -- dov, 071019
2733                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
2734                 }
2735                 break;
2736
2737         case LFUN_OUTLINE_UP:
2738                 outline(OutlineUp, cur, this);
2739                 setCursor(cur, cur.pit(), 0);
2740                 cur.forceBufferUpdate();
2741                 needsUpdate = true;
2742                 break;
2743
2744         case LFUN_OUTLINE_DOWN:
2745                 outline(OutlineDown, cur, this);
2746                 setCursor(cur, cur.pit(), 0);
2747                 cur.forceBufferUpdate();
2748                 needsUpdate = true;
2749                 break;
2750
2751         case LFUN_OUTLINE_IN:
2752                 outline(OutlineIn, cur, this);
2753                 cur.forceBufferUpdate();
2754                 needsUpdate = true;
2755                 break;
2756
2757         case LFUN_OUTLINE_OUT:
2758                 outline(OutlineOut, cur, this);
2759                 cur.forceBufferUpdate();
2760                 needsUpdate = true;
2761                 break;
2762
2763         case LFUN_SERVER_GET_STATISTICS:
2764                 {
2765                         DocIterator from, to;
2766                         if (cur.selection()) {
2767                                 from = cur.selectionBegin();
2768                                 to = cur.selectionEnd();
2769                         } else {
2770                                 from = doc_iterator_begin(cur.buffer());
2771                                 to = doc_iterator_end(cur.buffer());
2772                         }
2773
2774                         cur.buffer()->updateStatistics(from, to);
2775                         string const arg0 = cmd.getArg(0);
2776                         if (arg0 == "words") {
2777                                 cur.message(convert<docstring>(cur.buffer()->wordCount()));
2778                         } else if (arg0 == "chars") {
2779                                 cur.message(convert<docstring>(cur.buffer()->charCount(false)));
2780                         } else if (arg0 == "chars-space") {
2781                                 cur.message(convert<docstring>(cur.buffer()->charCount(true)));
2782                         } else {
2783                                 cur.message(convert<docstring>(cur.buffer()->wordCount()) + " "
2784                                 + convert<docstring>(cur.buffer()->charCount(false)) + " "
2785                                 + convert<docstring>(cur.buffer()->charCount(true)));
2786                         }
2787                 }
2788                 break;
2789
2790         default:
2791                 LYXERR(Debug::ACTION, "Command " << cmd << " not DISPATCHED by Text");
2792                 cur.undispatched();
2793                 break;
2794         }
2795
2796         needsUpdate |= (cur.pos() != cur.lastpos()) && cur.selection();
2797
2798         if (lyxrc.spellcheck_continuously && !needsUpdate) {
2799                 // Check for misspelled text
2800                 // The redraw is useful because of the painting of
2801                 // misspelled markers depends on the cursor position.
2802                 // Trigger a redraw for cursor moves inside misspelled text.
2803                 if (!cur.inTexted()) {
2804                         // move from regular text to math
2805                         needsUpdate = last_misspelled;
2806                 } else if (oldTopSlice != cur.top() || oldBoundary != cur.boundary()) {
2807                         // move inside regular text
2808                         needsUpdate = last_misspelled
2809                                 || cur.paragraph().isMisspelled(cur.pos(), true);
2810                 }
2811         }
2812
2813         // FIXME: The cursor flag is reset two lines below
2814         // so we need to check here if some of the LFUN did touch that.
2815         // for now only Text::erase() and Text::backspace() do that.
2816         // The plan is to verify all the LFUNs and then to remove this
2817         // singleParUpdate boolean altogether.
2818         if (cur.result().screenUpdate() & Update::Force) {
2819                 singleParUpdate = false;
2820                 needsUpdate = true;
2821         }
2822
2823         // FIXME: the following code should go in favor of fine grained
2824         // update flag treatment.
2825         if (singleParUpdate) {
2826                 // Inserting characters does not change par height in general. So, try
2827                 // to update _only_ this paragraph. BufferView will detect if a full
2828                 // metrics update is needed anyway.
2829                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
2830                 return;
2831         }
2832         if (!needsUpdate
2833             && &oldTopSlice.inset() == &cur.inset()
2834             && oldTopSlice.idx() == cur.idx()
2835             && !oldSelection // oldSelection is a backup of cur.selection() at the beginning of the function.
2836             && !cur.selection())
2837                 // FIXME: it would be better if we could just do this
2838                 //
2839                 //if (cur.result().update() != Update::FitCursor)
2840                 //      cur.noScreenUpdate();
2841                 //
2842                 // But some LFUNs do not set Update::FitCursor when needed, so we
2843                 // do it for all. This is not very harmfull as FitCursor will provoke
2844                 // a full redraw only if needed but still, a proper review of all LFUN
2845                 // should be done and this needsUpdate boolean can then be removed.
2846                 cur.screenUpdateFlags(Update::FitCursor);
2847         else
2848                 cur.screenUpdateFlags(Update::Force | Update::FitCursor);
2849 }
2850
2851
2852 bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
2853                         FuncStatus & flag) const
2854 {
2855         LBUFERR(this == cur.text());
2856
2857         FontInfo const & fontinfo = cur.real_current_font.fontInfo();
2858         bool enable = true;
2859         bool allow_in_passthru = false;
2860         InsetCode code = NO_CODE;
2861
2862         switch (cmd.action()) {
2863
2864         case LFUN_DEPTH_DECREMENT:
2865                 enable = changeDepthAllowed(cur, DEC_DEPTH);
2866                 break;
2867
2868         case LFUN_DEPTH_INCREMENT:
2869                 enable = changeDepthAllowed(cur, INC_DEPTH);
2870                 break;
2871
2872         case LFUN_APPENDIX:
2873                 // FIXME We really should not allow this to be put, e.g.,
2874                 // in a footnote, or in ERT. But it would make sense in a
2875                 // branch, so I'm not sure what to do.
2876                 flag.setOnOff(cur.paragraph().params().startOfAppendix());
2877                 break;
2878
2879         case LFUN_DIALOG_SHOW_NEW_INSET:
2880                 if (cmd.argument() == "bibitem")
2881                         code = BIBITEM_CODE;
2882                 else if (cmd.argument() == "bibtex") {
2883                         code = BIBTEX_CODE;
2884                         // not allowed in description items
2885                         enable = !inDescriptionItem(cur);
2886                 }
2887                 else if (cmd.argument() == "box")
2888                         code = BOX_CODE;
2889                 else if (cmd.argument() == "branch")
2890                         code = BRANCH_CODE;
2891                 else if (cmd.argument() == "citation")
2892                         code = CITE_CODE;
2893                 else if (cmd.argument() == "ert")
2894                         code = ERT_CODE;
2895                 else if (cmd.argument() == "external")
2896                         code = EXTERNAL_CODE;
2897                 else if (cmd.argument() == "float")
2898                         code = FLOAT_CODE;
2899                 else if (cmd.argument() == "graphics")
2900                         code = GRAPHICS_CODE;
2901                 else if (cmd.argument() == "href")
2902                         code = HYPERLINK_CODE;
2903                 else if (cmd.argument() == "include")
2904                         code = INCLUDE_CODE;
2905                 else if (cmd.argument() == "index")
2906                         code = INDEX_CODE;
2907                 else if (cmd.argument() == "index_print")
2908                         code = INDEX_PRINT_CODE;
2909                 else if (cmd.argument() == "listings")
2910                         code = LISTINGS_CODE;
2911                 else if (cmd.argument() == "mathspace")
2912                         code = MATH_HULL_CODE;
2913                 else if (cmd.argument() == "nomenclature")
2914                         code = NOMENCL_CODE;
2915                 else if (cmd.argument() == "nomencl_print")
2916                         code = NOMENCL_PRINT_CODE;
2917                 else if (cmd.argument() == "label")
2918                         code = LABEL_CODE;
2919                 else if (cmd.argument() == "line")
2920                         code = LINE_CODE;
2921                 else if (cmd.argument() == "note")
2922                         code = NOTE_CODE;
2923                 else if (cmd.argument() == "phantom")
2924                         code = PHANTOM_CODE;
2925                 else if (cmd.argument() == "ref")
2926                         code = REF_CODE;
2927                 else if (cmd.argument() == "space")
2928                         code = SPACE_CODE;
2929                 else if (cmd.argument() == "toc")
2930                         code = TOC_CODE;
2931                 else if (cmd.argument() == "vspace")
2932                         code = VSPACE_CODE;
2933                 else if (cmd.argument() == "wrap")
2934                         code = WRAP_CODE;
2935                 break;
2936
2937         case LFUN_ERT_INSERT:
2938                 code = ERT_CODE;
2939                 break;
2940         case LFUN_LISTING_INSERT:
2941                 code = LISTINGS_CODE;
2942                 // not allowed in description items
2943                 enable = !inDescriptionItem(cur);
2944                 break;
2945         case LFUN_FOOTNOTE_INSERT:
2946                 code = FOOT_CODE;
2947                 break;
2948         case LFUN_TABULAR_INSERT:
2949                 code = TABULAR_CODE;
2950                 break;
2951         case LFUN_TABULAR_STYLE_INSERT:
2952                 code = TABULAR_CODE;
2953                 break;
2954         case LFUN_MARGINALNOTE_INSERT:
2955                 code = MARGIN_CODE;
2956                 break;
2957         case LFUN_FLOAT_INSERT:
2958         case LFUN_FLOAT_WIDE_INSERT:
2959                 // FIXME: If there is a selection, we should check whether there
2960                 // are floats in the selection, but this has performance issues, see
2961                 // LFUN_CHANGE_ACCEPT/REJECT.
2962                 code = FLOAT_CODE;
2963                 if (inDescriptionItem(cur))
2964                         // not allowed in description items
2965                         enable = false;
2966                 else {
2967                         InsetCode const inset_code = cur.inset().lyxCode();
2968
2969                         // algorithm floats cannot be put in another float
2970                         if (to_utf8(cmd.argument()) == "algorithm") {
2971                                 enable = inset_code != WRAP_CODE && inset_code != FLOAT_CODE;
2972                                 break;
2973                         }
2974
2975                         // for figures and tables: only allow in another
2976                         // float or wrap if it is of the same type and
2977                         // not a subfloat already
2978                         if(cur.inset().lyxCode() == code) {
2979                                 InsetFloat const & ins =
2980                                         static_cast<InsetFloat const &>(cur.inset());
2981                                 enable = ins.params().type == to_utf8(cmd.argument())
2982                                         && !ins.params().subfloat;
2983                         } else if(cur.inset().lyxCode() == WRAP_CODE) {
2984                                 InsetWrap const & ins =
2985                                         static_cast<InsetWrap const &>(cur.inset());
2986                                 enable = ins.params().type == to_utf8(cmd.argument());
2987                         }
2988                 }
2989                 break;
2990         case LFUN_WRAP_INSERT:
2991                 code = WRAP_CODE;
2992                 // not allowed in description items
2993                 enable = !inDescriptionItem(cur);
2994                 break;
2995         case LFUN_FLOAT_LIST_INSERT: {
2996                 code = FLOAT_LIST_CODE;
2997                 // not allowed in description items
2998                 enable = !inDescriptionItem(cur);
2999                 if (enable) {
3000                         FloatList const & floats = cur.buffer()->params().documentClass().floats();
3001                         FloatList::const_iterator cit = floats[to_ascii(cmd.argument())];
3002                         // make sure we know about such floats
3003                         if (cit == floats.end() ||
3004                                         // and that we know how to generate a list of them
3005                             (!cit->second.usesFloatPkg() && cit->second.listCommand().empty())) {
3006                                 flag.setUnknown(true);
3007                                 // probably not necessary, but...
3008                                 enable = false;
3009                         }
3010                 }
3011                 break;
3012         }
3013         case LFUN_CAPTION_INSERT: {
3014                 code = CAPTION_CODE;
3015                 string arg = cmd.getArg(0);
3016                 bool varia = arg != "Unnumbered"
3017                         && cur.inset().allowsCaptionVariation(arg);
3018                 // not allowed in description items,
3019                 // and in specific insets
3020                 enable = !inDescriptionItem(cur)
3021                         && (varia || arg.empty() || arg == "Standard");
3022                 break;
3023         }
3024         case LFUN_NOTE_INSERT:
3025                 code = NOTE_CODE;
3026                 break;
3027         case LFUN_FLEX_INSERT: {
3028                 code = FLEX_CODE;
3029                 string s = cmd.getArg(0);
3030                 InsetLayout il =
3031                         cur.buffer()->params().documentClass().insetLayout(from_utf8(s));
3032                 if (il.lyxtype() != InsetLayout::CHARSTYLE &&
3033                     il.lyxtype() != InsetLayout::CUSTOM &&
3034                     il.lyxtype() != InsetLayout::ELEMENT &&
3035                     il.lyxtype ()!= InsetLayout::STANDARD)
3036                         enable = false;
3037                 break;
3038                 }
3039         case LFUN_BOX_INSERT:
3040                 code = BOX_CODE;
3041                 break;
3042         case LFUN_BRANCH_INSERT:
3043                 code = BRANCH_CODE;
3044                 if (cur.buffer()->masterBuffer()->params().branchlist().empty()
3045                     && cur.buffer()->params().branchlist().empty())
3046                         enable = false;
3047                 break;
3048         case LFUN_IPA_INSERT:
3049                 code = IPA_CODE;
3050                 break;
3051         case LFUN_PHANTOM_INSERT:
3052                 code = PHANTOM_CODE;
3053                 break;
3054         case LFUN_LABEL_INSERT:
3055                 code = LABEL_CODE;
3056                 break;
3057         case LFUN_INFO_INSERT:
3058                 code = INFO_CODE;
3059                 enable = cmd.argument().empty()
3060                         || infoparams.validateArgument(cur.buffer(), cmd.argument(), true);
3061                 break;
3062         case LFUN_ARGUMENT_INSERT: {
3063                 code = ARG_CODE;
3064                 allow_in_passthru = true;
3065                 string const arg = cmd.getArg(0);
3066                 if (arg.empty()) {
3067                         enable = false;
3068                         break;
3069                 }
3070                 Layout const & lay = cur.paragraph().layout();
3071                 Layout::LaTeXArgMap args = lay.args();
3072                 Layout::LaTeXArgMap::const_iterator const lait =
3073                                 args.find(arg);
3074                 if (lait != args.end()) {
3075                         enable = true;
3076                         pit_type pit = cur.pit();
3077                         pit_type lastpit = cur.pit();
3078                         if (lay.isEnvironment() && !prefixIs(arg, "item:")) {
3079                                 // In a sequence of "merged" environment layouts, we only allow
3080                                 // non-item arguments once.
3081                                 lastpit = cur.lastpit();
3082                                 // get the first paragraph in sequence with this layout
3083                                 depth_type const current_depth = cur.paragraph().params().depth();
3084                                 while (true) {
3085                                         if (pit == 0)
3086                                                 break;
3087                                         Paragraph cpar = pars_[pit - 1];
3088                                         if (cpar.layout() == lay && cpar.params().depth() == current_depth)
3089                                                 --pit;
3090                                         else
3091                                                 break;
3092                                 }
3093                         }
3094                         for (; pit <= lastpit; ++pit) {
3095                                 if (pars_[pit].layout() != lay)
3096                                         break;
3097                                 for (auto const & table : pars_[pit].insetList())
3098                                         if (InsetArgument const * ins = table.inset->asInsetArgument())
3099                                                 if (ins->name() == arg) {
3100                                                         // we have this already
3101                                                         enable = false;
3102                                                         break;
3103                                                 }
3104                         }
3105                 } else
3106                         enable = false;
3107                 break;
3108         }
3109         case LFUN_INDEX_INSERT:
3110                 code = INDEX_CODE;
3111                 break;
3112         case LFUN_INDEX_PRINT:
3113                 code = INDEX_PRINT_CODE;
3114                 // not allowed in description items
3115                 enable = !inDescriptionItem(cur);
3116                 break;
3117         case LFUN_NOMENCL_INSERT:
3118                 if (cur.selIsMultiCell() || cur.selIsMultiLine()) {
3119                         enable = false;
3120                         break;
3121                 }
3122                 code = NOMENCL_CODE;
3123                 break;
3124         case LFUN_NOMENCL_PRINT:
3125                 code = NOMENCL_PRINT_CODE;
3126                 // not allowed in description items
3127                 enable = !inDescriptionItem(cur);
3128                 break;
3129         case LFUN_HREF_INSERT:
3130                 if (cur.selIsMultiCell() || cur.selIsMultiLine()) {
3131                         enable = false;
3132                         break;
3133                 }
3134                 code = HYPERLINK_CODE;
3135                 break;
3136         case LFUN_IPAMACRO_INSERT: {
3137                 string const arg = cmd.getArg(0);
3138                 if (arg == "deco")
3139                         code = IPADECO_CODE;
3140                 else
3141                         code = IPACHAR_CODE;
3142                 break;
3143         }
3144         case LFUN_QUOTE_INSERT:
3145                 // always allow this, since we will inset a raw quote
3146                 // if an inset is not allowed.
3147                 allow_in_passthru = true;
3148                 break;
3149         case LFUN_SPECIALCHAR_INSERT:
3150                 code = SPECIALCHAR_CODE;
3151                 break;
3152         case LFUN_SPACE_INSERT:
3153                 // slight hack: we know this is allowed in math mode
3154                 if (cur.inTexted())
3155                         code = SPACE_CODE;
3156                 break;
3157         case LFUN_PREVIEW_INSERT:
3158                 code = PREVIEW_CODE;
3159                 break;
3160         case LFUN_SCRIPT_INSERT:
3161                 code = SCRIPT_CODE;
3162                 break;
3163
3164         case LFUN_MATH_INSERT:
3165         case LFUN_MATH_AMS_MATRIX:
3166         case LFUN_MATH_MATRIX:
3167         case LFUN_MATH_DELIM:
3168         case LFUN_MATH_BIGDELIM:
3169         case LFUN_MATH_DISPLAY:
3170         case LFUN_MATH_MODE:
3171         case LFUN_MATH_MACRO:
3172         case LFUN_MATH_SUBSCRIPT:
3173         case LFUN_MATH_SUPERSCRIPT:
3174                 code = MATH_HULL_CODE;
3175                 break;
3176
3177         case LFUN_REGEXP_MODE:
3178                 code = MATH_HULL_CODE;
3179                 enable = cur.buffer()->isInternal() && !cur.inRegexped();
3180                 break;
3181
3182         case LFUN_INSET_MODIFY:
3183                 // We need to disable this, because we may get called for a
3184                 // tabular cell via
3185                 // InsetTabular::getStatus() -> InsetText::getStatus()
3186                 // and we don't handle LFUN_INSET_MODIFY.
3187                 enable = false;
3188                 break;
3189
3190         case LFUN_FONT_EMPH:
3191                 flag.setOnOff(fontinfo.emph() == FONT_ON);
3192                 enable = !cur.paragraph().isPassThru();
3193                 break;
3194
3195         case LFUN_FONT_ITAL:
3196                 flag.setOnOff(fontinfo.shape() == ITALIC_SHAPE);
3197                 enable = !cur.paragraph().isPassThru();
3198                 break;
3199
3200         case LFUN_FONT_NOUN:
3201                 flag.setOnOff(fontinfo.noun() == FONT_ON);
3202                 enable = !cur.paragraph().isPassThru();
3203                 break;
3204
3205         case LFUN_FONT_BOLD:
3206         case LFUN_FONT_BOLDSYMBOL:
3207                 flag.setOnOff(fontinfo.series() == BOLD_SERIES);
3208                 enable = !cur.paragraph().isPassThru();
3209                 break;
3210
3211         case LFUN_FONT_SANS:
3212                 flag.setOnOff(fontinfo.family() == SANS_FAMILY);
3213                 enable = !cur.paragraph().isPassThru();
3214                 break;
3215
3216         case LFUN_FONT_ROMAN:
3217                 flag.setOnOff(fontinfo.family() == ROMAN_FAMILY);
3218                 enable = !cur.paragraph().isPassThru();
3219                 break;
3220
3221         case LFUN_FONT_TYPEWRITER:
3222                 flag.setOnOff(fontinfo.family() == TYPEWRITER_FAMILY);
3223                 enable = !cur.paragraph().isPassThru();
3224                 break;
3225
3226         case LFUN_CUT:
3227         case LFUN_COPY:
3228                 enable = cur.selection();
3229                 break;
3230
3231         case LFUN_PASTE: {
3232                 if (cmd.argument().empty()) {
3233                         if (theClipboard().isInternal())
3234                                 enable = cap::numberOfSelections() > 0;
3235                         else
3236                                 enable = !theClipboard().empty();
3237                         break;
3238                 }
3239
3240                 // we have an argument
3241                 string const arg = to_utf8(cmd.argument());
3242                 if (isStrUnsignedInt(arg)) {
3243                         // it's a number and therefore means the internal stack
3244                         unsigned int n = convert<unsigned int>(arg);
3245                         enable = cap::numberOfSelections() > n;
3246                         break;
3247                 }
3248
3249                 // explicit text type?
3250                 if (arg == "html") {
3251                         // Do not enable for PlainTextType, since some tidying in the
3252                         // frontend is needed for HTML, which is too unsafe for plain text.
3253                         enable = theClipboard().hasTextContents(Clipboard::HtmlTextType);
3254                         break;
3255                 } else if (arg == "latex") {
3256                         // LaTeX is usually not available on the clipboard with
3257                         // the correct MIME type, but in plain text.
3258                         enable = theClipboard().hasTextContents(Clipboard::PlainTextType) ||
3259                                  theClipboard().hasTextContents(Clipboard::LaTeXTextType);
3260                         break;
3261                 }
3262
3263                 Clipboard::GraphicsType type = Clipboard::AnyGraphicsType;
3264                 if (arg == "pdf")
3265                         type = Clipboard::PdfGraphicsType;
3266                 else if (arg == "png")
3267                         type = Clipboard::PngGraphicsType;
3268                 else if (arg == "jpeg")
3269                         type = Clipboard::JpegGraphicsType;
3270                 else if (arg == "linkback")
3271                         type = Clipboard::LinkBackGraphicsType;
3272                 else if (arg == "emf")
3273                         type = Clipboard::EmfGraphicsType;
3274                 else if (arg == "wmf")
3275                         type = Clipboard::WmfGraphicsType;
3276                 else {
3277                         // unknown argument
3278                         LYXERR0("Unrecognized graphics type: " << arg);
3279                         // we don't want to assert if the user just mistyped the LFUN
3280                         LATTEST(cmd.origin() != FuncRequest::INTERNAL);
3281                         enable = false;
3282                         break;
3283                 }
3284                 enable = theClipboard().hasGraphicsContents(type);
3285                 break;
3286         }
3287
3288         case LFUN_CLIPBOARD_PASTE:
3289         case LFUN_CLIPBOARD_PASTE_SIMPLE:
3290                 enable = !theClipboard().empty();
3291                 break;
3292
3293         case LFUN_PRIMARY_SELECTION_PASTE:
3294                 enable = cur.selection() || !theSelection().empty();
3295                 break;
3296
3297         case LFUN_SELECTION_PASTE:
3298                 enable = cap::selection();
3299                 break;
3300
3301         case LFUN_PARAGRAPH_MOVE_UP:
3302                 enable = cur.pit() > 0 && !cur.selection();
3303                 break;
3304
3305         case LFUN_PARAGRAPH_MOVE_DOWN:
3306                 enable = cur.pit() < cur.lastpit() && !cur.selection();
3307                 break;
3308
3309         case LFUN_CHANGE_ACCEPT:
3310         case LFUN_CHANGE_REJECT:
3311                 if (!cur.selection())
3312                         enable = cur.paragraph().isChanged(cur.pos());
3313                 else {
3314                         // will enable if there is a change in the selection
3315                         enable = false;
3316
3317                         // cheap improvement for efficiency: using cached
3318                         // buffer variable, if there is no change in the
3319                         // document, no need to check further.
3320                         if (!cur.buffer()->areChangesPresent())
3321                                 break;
3322
3323                         for (DocIterator it = cur.selectionBegin(); ; it.forwardPar()) {
3324                                 pos_type const beg = it.pos();
3325                                 pos_type end;
3326                                 bool const in_last_par = (it.pit() == cur.selectionEnd().pit() &&
3327                                                           it.idx() == cur.selectionEnd().idx());
3328                                 if (in_last_par)
3329                                         end = cur.selectionEnd().pos();
3330                                 else
3331                                         end = it.lastpos();
3332                                 if (beg != end && it.paragraph().isChanged(beg, end)) {
3333                                         enable = true;
3334                                         break;
3335                                 }
3336                                 if (in_last_par)
3337                                         break;
3338                         }
3339                 }
3340                 break;
3341
3342         case LFUN_OUTLINE_UP:
3343         case LFUN_OUTLINE_DOWN:
3344         case LFUN_OUTLINE_IN:
3345         case LFUN_OUTLINE_OUT:
3346                 // FIXME: LyX is not ready for outlining within inset.
3347                 enable = isMainText()
3348                         && cur.buffer()->text().getTocLevel(cur.pit()) != Layout::NOT_IN_TOC;
3349                 break;
3350
3351         case LFUN_NEWLINE_INSERT:
3352                 // LaTeX restrictions (labels or empty par)
3353                 enable = !cur.paragraph().isPassThru()
3354                         && cur.pos() > cur.paragraph().beginOfBody();
3355                 break;
3356
3357         case LFUN_SEPARATOR_INSERT:
3358                 // Always enabled for now
3359                 enable = true;
3360                 break;
3361
3362         case LFUN_TAB_INSERT:
3363         case LFUN_TAB_DELETE:
3364                 enable = cur.paragraph().isPassThru();
3365                 break;
3366
3367         case LFUN_GRAPHICS_SET_GROUP: {
3368                 InsetGraphics * ins = graphics::getCurrentGraphicsInset(cur);
3369                 if (!ins)
3370                         enable = false;
3371                 else
3372                         flag.setOnOff(to_utf8(cmd.argument()) == ins->getParams().groupId);
3373                 break;
3374         }
3375
3376         case LFUN_NEWPAGE_INSERT:
3377                 // not allowed in description items
3378                 code = NEWPAGE_CODE;
3379                 enable = !inDescriptionItem(cur);
3380                 break;
3381
3382         case LFUN_LANGUAGE:
3383                 enable = !cur.paragraph().isPassThru();
3384                 flag.setOnOff(cmd.getArg(0) == cur.real_current_font.language()->lang());
3385                 break;
3386
3387         case LFUN_PARAGRAPH_BREAK:
3388                 enable = inset().allowMultiPar();
3389                 break;
3390
3391         case LFUN_SPELLING_ADD:
3392         case LFUN_SPELLING_IGNORE:
3393         case LFUN_SPELLING_REMOVE:
3394                 enable = theSpellChecker() != NULL;
3395                 if (enable && !cmd.getArg(1).empty()) {
3396                         // validate explicitly given language
3397                         Language const * const lang = const_cast<Language *>(languages.getLanguage(cmd.getArg(1)));
3398                         enable &= lang != NULL;
3399                 }
3400                 break;
3401
3402         case LFUN_LAYOUT:
3403         case LFUN_LAYOUT_TOGGLE: {
3404                 bool const ignoreautonests = cmd.getArg(1) == "ignoreautonests";
3405                 docstring const req_layout = ignoreautonests ? from_utf8(cmd.getArg(0)) : cmd.argument();
3406                 docstring const layout = resolveLayout(req_layout, cur);
3407
3408                 enable = !owner_->forcePlainLayout() && !layout.empty();
3409                 flag.setOnOff(isAlreadyLayout(layout, cur));
3410                 break;
3411         }
3412
3413         case LFUN_ENVIRONMENT_SPLIT: {
3414                 if (cmd.argument() == "outer") {
3415                         // check if we have an environment in our nesting hierarchy
3416                         bool res = false;
3417                         depth_type const current_depth = cur.paragraph().params().depth();
3418                         pit_type pit = cur.pit();
3419                         Paragraph cpar = pars_[pit];
3420                         while (true) {
3421                                 if (pit == 0 || cpar.params().depth() == 0)
3422                                         break;
3423                                 --pit;
3424                                 cpar = pars_[pit];
3425                                 if (cpar.params().depth() < current_depth)
3426                                         res = cpar.layout().isEnvironment();
3427                         }
3428                         enable = res;
3429                         break;
3430                 }
3431                 else if (cmd.argument() == "previous") {
3432                         // look if we have an environment in the previous par
3433                         pit_type pit = cur.pit();
3434                         Paragraph cpar = pars_[pit];
3435                         if (pit > 0) {
3436                                 --pit;
3437                                 cpar = pars_[pit];
3438                                 enable = cpar.layout().isEnvironment();
3439                                 break;
3440                         }
3441                         enable = false;
3442                         break;
3443                 }
3444                 else if (cur.paragraph().layout().isEnvironment()) {
3445                         enable = cmd.argument() == "before"
3446                                 || cur.pos() > 0 || !isFirstInSequence(cur.pit());
3447                         break;
3448                 }
3449                 enable = false;
3450                 break;
3451         }
3452
3453         case LFUN_LAYOUT_PARAGRAPH:
3454         case LFUN_PARAGRAPH_PARAMS:
3455         case LFUN_PARAGRAPH_PARAMS_APPLY:
3456         case LFUN_PARAGRAPH_UPDATE:
3457                 enable = owner_->allowParagraphCustomization();
3458                 break;
3459
3460         // FIXME: why are accent lfuns forbidden with pass_thru layouts?
3461         //  Because they insert COMBINING DIACRITICAL Unicode characters,
3462         //  that cannot be handled by LaTeX but must be converted according
3463         //  to the definition in lib/unicodesymbols?
3464         case LFUN_ACCENT_ACUTE:
3465         case LFUN_ACCENT_BREVE:
3466         case LFUN_ACCENT_CARON:
3467         case LFUN_ACCENT_CEDILLA:
3468         case LFUN_ACCENT_CIRCLE:
3469         case LFUN_ACCENT_CIRCUMFLEX:
3470         case LFUN_ACCENT_DOT:
3471         case LFUN_ACCENT_GRAVE:
3472         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
3473         case LFUN_ACCENT_MACRON:
3474         case LFUN_ACCENT_OGONEK:
3475         case LFUN_ACCENT_TIE:
3476         case LFUN_ACCENT_TILDE:
3477         case LFUN_ACCENT_PERISPOMENI:
3478         case LFUN_ACCENT_UMLAUT:
3479         case LFUN_ACCENT_UNDERBAR:
3480         case LFUN_ACCENT_UNDERDOT:
3481         case LFUN_FONT_FRAK:
3482         case LFUN_FONT_SIZE:
3483         case LFUN_FONT_STATE:
3484         case LFUN_FONT_UNDERLINE:
3485         case LFUN_FONT_STRIKEOUT:
3486         case LFUN_FONT_CROSSOUT:
3487         case LFUN_FONT_UNDERUNDERLINE:
3488         case LFUN_FONT_UNDERWAVE:
3489         case LFUN_TEXTSTYLE_UPDATE:
3490                 enable = !cur.paragraph().isPassThru();
3491                 break;
3492
3493         case LFUN_FONT_DEFAULT: {
3494                 Font font(inherit_font, ignore_language);
3495                 BufferParams const & bp = cur.buffer()->masterParams();
3496                 if (cur.selection()) {
3497                         enable = false;
3498                         // Check if we have a non-default font attribute
3499                         // in the selection range.
3500                         DocIterator const from = cur.selectionBegin();
3501                         DocIterator const to = cur.selectionEnd();
3502                         for (DocIterator dit = from ; dit != to && !dit.atEnd(); ) {
3503                                 if (!dit.inTexted()) {
3504                                         dit.forwardPos();
3505                                         continue;
3506                                 }
3507                                 Paragraph const & par = dit.paragraph();
3508                                 pos_type const pos = dit.pos();
3509                                 Font tmp = par.getFontSettings(bp, pos);
3510                                 if (tmp.fontInfo() != font.fontInfo()
3511                                     || tmp.language() != bp.language) {
3512                                         enable = true;
3513                                         break;
3514                                 }
3515                                 dit.forwardPos();
3516                         }
3517                         break;
3518                 }
3519                 // Disable if all is default already.
3520                 enable = (cur.current_font.fontInfo() != font.fontInfo()
3521                           || cur.current_font.language() != bp.language);
3522                 break;
3523         }
3524
3525         case LFUN_TEXTSTYLE_APPLY:
3526                 enable = !freeFonts.empty();
3527                 break;
3528
3529         case LFUN_WORD_DELETE_FORWARD:
3530         case LFUN_WORD_DELETE_BACKWARD:
3531         case LFUN_LINE_DELETE_FORWARD:
3532         case LFUN_WORD_FORWARD:
3533         case LFUN_WORD_BACKWARD:
3534         case LFUN_WORD_RIGHT:
3535         case LFUN_WORD_LEFT:
3536         case LFUN_CHAR_FORWARD:
3537         case LFUN_CHAR_FORWARD_SELECT:
3538         case LFUN_CHAR_BACKWARD:
3539         case LFUN_CHAR_BACKWARD_SELECT:
3540         case LFUN_CHAR_LEFT:
3541         case LFUN_CHAR_LEFT_SELECT:
3542         case LFUN_CHAR_RIGHT:
3543         case LFUN_CHAR_RIGHT_SELECT:
3544         case LFUN_UP:
3545         case LFUN_UP_SELECT:
3546         case LFUN_DOWN:
3547         case LFUN_DOWN_SELECT:
3548         case LFUN_PARAGRAPH_SELECT:
3549         case LFUN_PARAGRAPH_UP_SELECT:
3550         case LFUN_PARAGRAPH_DOWN_SELECT:
3551         case LFUN_LINE_BEGIN_SELECT:
3552         case LFUN_LINE_END_SELECT:
3553         case LFUN_WORD_FORWARD_SELECT:
3554         case LFUN_WORD_BACKWARD_SELECT:
3555         case LFUN_WORD_RIGHT_SELECT:
3556         case LFUN_WORD_LEFT_SELECT:
3557         case LFUN_WORD_SELECT:
3558         case LFUN_SECTION_SELECT:
3559         case LFUN_BUFFER_BEGIN:
3560         case LFUN_BUFFER_END:
3561         case LFUN_BUFFER_BEGIN_SELECT:
3562         case LFUN_BUFFER_END_SELECT:
3563         case LFUN_INSET_BEGIN:
3564         case LFUN_INSET_END:
3565         case LFUN_INSET_BEGIN_SELECT:
3566         case LFUN_INSET_END_SELECT:
3567         case LFUN_PARAGRAPH_UP:
3568         case LFUN_PARAGRAPH_DOWN:
3569         case LFUN_LINE_BEGIN:
3570         case LFUN_LINE_END:
3571         case LFUN_CHAR_DELETE_FORWARD:
3572         case LFUN_CHAR_DELETE_BACKWARD:
3573         case LFUN_WORD_UPCASE:
3574         case LFUN_WORD_LOWCASE:
3575         case LFUN_WORD_CAPITALIZE:
3576         case LFUN_CHARS_TRANSPOSE:
3577         case LFUN_SERVER_GET_XY:
3578         case LFUN_SERVER_SET_XY:
3579         case LFUN_SERVER_GET_LAYOUT:
3580         case LFUN_SELF_INSERT:
3581         case LFUN_UNICODE_INSERT:
3582         case LFUN_THESAURUS_ENTRY:
3583         case LFUN_ESCAPE:
3584         case LFUN_SERVER_GET_STATISTICS:
3585                 // these are handled in our dispatch()
3586                 enable = true;
3587                 break;
3588
3589         case LFUN_INSET_INSERT: {
3590                 string const type = cmd.getArg(0);
3591                 if (type == "toc") {
3592                         code = TOC_CODE;
3593                         // not allowed in description items
3594                         //FIXME: couldn't this be merged in Inset::insetAllowed()?
3595                         enable = !inDescriptionItem(cur);
3596                 } else {
3597                         enable = true;
3598                 }
3599                 break;
3600         }
3601
3602         case LFUN_SEARCH_IGNORE: {
3603                 bool const value = cmd.getArg(1) == "true";
3604                 setIgnoreFormat(cmd.getArg(0), value);
3605                 break;
3606         }
3607
3608         default:
3609                 return false;
3610         }
3611
3612         if (code != NO_CODE
3613             && (cur.empty()
3614                 || !cur.inset().insetAllowed(code)
3615                 || (cur.paragraph().layout().pass_thru && !allow_in_passthru)))
3616                 enable = false;
3617
3618         flag.setEnabled(enable);
3619         return true;
3620 }
3621
3622
3623 void Text::pasteString(Cursor & cur, docstring const & clip,
3624                 bool asParagraphs)
3625 {
3626         if (!clip.empty()) {
3627                 cur.recordUndo();
3628                 if (asParagraphs)
3629                         insertStringAsParagraphs(cur, clip, cur.current_font);
3630                 else
3631                         insertStringAsLines(cur, clip, cur.current_font);
3632         }
3633 }
3634
3635
3636 // FIXME: an item inset would make things much easier.
3637 bool Text::inDescriptionItem(Cursor & cur) const
3638 {
3639         Paragraph & par = cur.paragraph();
3640         pos_type const pos = cur.pos();
3641         pos_type const body_pos = par.beginOfBody();
3642
3643         if (par.layout().latextype != LATEX_LIST_ENVIRONMENT
3644             && (par.layout().latextype != LATEX_ITEM_ENVIRONMENT
3645                 || par.layout().margintype != MARGIN_FIRST_DYNAMIC))
3646                 return false;
3647
3648         return (pos < body_pos
3649                 || (pos == body_pos
3650                     && (pos == 0 || par.getChar(pos - 1) != ' ')));
3651 }
3652
3653
3654 std::vector<docstring> Text::getFreeFonts() const
3655 {
3656         vector<docstring> ffList;
3657
3658         FontStack::const_iterator cit = freeFonts.begin();
3659         FontStack::const_iterator end = freeFonts.end();
3660         for (; cit != end; ++cit)
3661                 // we do not use cit-> here because gcc 2.9x does not
3662                 // like it (JMarc)
3663                 ffList.push_back((*cit).first);
3664
3665         return ffList;
3666 }
3667
3668 } // namespace lyx