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/InsetIPAMacro.h"
  64 #include "insets/InsetNewline.h"
  65 #include "insets/InsetQuotes.h"
  66 #include "insets/InsetSpecialChar.h"
  67 #include "insets/InsetText.h"
  68 #include "insets/InsetWrap.h"
  69
  70 #include "support/convert.h"
  71 #include "support/debug.h"
  72 #include "support/gettext.h"
  73 #include "support/lassert.h"
  74 #include "support/lstrings.h"
  75 #include "support/lyxalgo.h"
  76 #include "support/lyxtime.h"
  77 #include "support/os.h"
  78 #include "support/regex.h"
  79
  80 #include "mathed/InsetMathHull.h"
  81 #include "mathed/InsetMathMacroTemplate.h"
  82
  83 #include <clocale>
  84 #include <sstream>
  85
  86 using namespace std;
  87 using namespace lyx::support;
  88
  89 namespace lyx {
  90
  91 using cap::copySelection;
  92 using cap::copySelectionToTemp;
  93 using cap::cutSelection;
  94 using cap::cutSelectionToTemp;
  95 using cap::pasteFromStack;
  96 using cap::pasteFromTemp;
  97 using cap::pasteClipboardText;
  98 using cap::pasteClipboardGraphics;
  99 using cap::replaceSelection;
 100 using cap::grabAndEraseSelection;
 101 using cap::selClearOrDel;
 102 using cap::pasteSimpleText;
 103 using frontend::Clipboard;
 104
 105 // globals...
 106 static Font freefont(ignore_font, ignore_language);
 107 static bool toggleall = false;
 108
 109 static void toggleAndShow(Cursor & cur, Text * text,
 110         Font const & font, bool toggleall = true)
 111 {
 112         text->toggleFree(cur, font, toggleall);
 113
 114         if (font.language() != ignore_language ||
 115             font.fontInfo().number() != FONT_IGNORE) {
 116                 TextMetrics const & tm = cur.bv().textMetrics(text);
 117                 if (cur.boundary() != tm.isRTLBoundary(cur.pit(), cur.pos(),
 118                                                        cur.real_current_font))
 119                         text->setCursor(cur, cur.pit(), cur.pos(),
 120                                         false, !cur.boundary());
 121         }
 122 }
 123
 124
 125 static void moveCursor(Cursor & cur, bool selecting)
 126 {
 127         if (selecting || cur.mark())
 128                 cur.setSelection();
 129 }
 130
 131
 132 static void finishChange(Cursor & cur, bool selecting)
 133 {
 134         cur.finishUndo();
 135         moveCursor(cur, selecting);
 136 }
 137
 138
 139 static void mathDispatch(Cursor & cur, FuncRequest const & cmd)
 140 {
 141         cur.recordUndo();
 142         docstring sel = cur.selectionAsString(false);
 143
 144         // It may happen that sel is empty but there is a selection
 145         replaceSelection(cur);
 146
 147         // Is this a valid formula?
 148         bool valid = true;
 149
 150         if (sel.empty()) {
 151 #ifdef ENABLE_ASSERTIONS
 152                 const int old_pos = cur.pos();
 153 #endif
 154                 cur.insert(new InsetMathHull(cur.buffer(), hullSimple));
 155 #ifdef ENABLE_ASSERTIONS
 156                 LATTEST(old_pos == cur.pos());
 157 #endif
 158                 cur.nextInset()->edit(cur, true);
 159                 if (cmd.action() != LFUN_MATH_MODE)
 160                         // LFUN_MATH_MODE has a different meaning in math mode
 161                         cur.dispatch(cmd);
 162         } else {
 163                 InsetMathHull * formula = new InsetMathHull(cur.buffer());
 164                 string const selstr = to_utf8(sel);
 165                 istringstream is(selstr);
 166                 Lexer lex;
 167                 lex.setStream(is);
 168                 if (!formula->readQuiet(lex)) {
 169                         // No valid formula, let's try with delims
 170                         is.str("$" + selstr + "$");
 171                         lex.setStream(is);
 172                         if (!formula->readQuiet(lex)) {
 173                                 // Still not valid, leave it as is
 174                                 valid = false;
 175                                 delete formula;
 176                                 cur.insert(sel);
 177                         }
 178                 }
 179                 if (valid) {
 180                         cur.insert(formula);
 181                         cur.nextInset()->edit(cur, true);
 182                         LASSERT(cur.inMathed(), return);
 183                         cur.pos() = 0;
 184                         cur.resetAnchor();
 185                         cur.selection(true);
 186                         cur.pos() = cur.lastpos();
 187                         if (cmd.action() != LFUN_MATH_MODE)
 188                                 // LFUN_MATH_MODE has a different meaning in math mode
 189                                 cur.dispatch(cmd);
 190                         cur.clearSelection();
 191                         cur.pos() = cur.lastpos();
 192                 }
 193         }
 194         if (valid)
 195                 cur.message(from_utf8(N_("Math editor mode")));
 196         else
 197                 cur.message(from_utf8(N_("No valid math formula")));
 198 }
 199
 200
 201 void regexpDispatch(Cursor & cur, FuncRequest const & cmd)
 202 {
 203         LASSERT(cmd.action() == LFUN_REGEXP_MODE, return);
 204         if (cur.inRegexped()) {
 205                 cur.message(_("Already in regular expression mode"));
 206                 return;
 207         }
 208         cur.recordUndo();
 209         docstring sel = cur.selectionAsString(false);
 210
 211         // It may happen that sel is empty but there is a selection
 212         replaceSelection(cur);
 213
 214         cur.insert(new InsetMathHull(cur.buffer(), hullRegexp));
 215         cur.nextInset()->edit(cur, true);
 216         cur.niceInsert(sel);
 217
 218         cur.message(_("Regexp editor mode"));
 219 }
 220
 221
 222 static void specialChar(Cursor & cur, InsetSpecialChar::Kind kind)
 223 {
 224         cur.recordUndo();
 225         cap::replaceSelection(cur);
 226         cur.insert(new InsetSpecialChar(kind));
 227         cur.posForward();
 228 }
 229
 230
 231 static void ipaChar(Cursor & cur, InsetIPAChar::Kind kind)
 232 {
 233         cur.recordUndo();
 234         cap::replaceSelection(cur);
 235         cur.insert(new InsetIPAChar(kind));
 236         cur.posForward();
 237 }
 238
 239
 240 static bool doInsertInset(Cursor & cur, Text * text,
 241         FuncRequest const & cmd, bool edit, bool pastesel)
 242 {
 243         Buffer & buffer = cur.bv().buffer();
 244         BufferParams const & bparams = buffer.params();
 245         Inset * inset = createInset(&buffer, cmd);
 246         if (!inset)
 247                 return false;
 248
 249         if (InsetCollapsible * ci = inset->asInsetCollapsible())
 250                 ci->setButtonLabel();
 251
 252         cur.recordUndo();
 253         if (cmd.action() == LFUN_ARGUMENT_INSERT) {
 254                 bool cotextinsert = false;
 255                 InsetArgument const * const ia = static_cast<InsetArgument const *>(inset);
 256                 Layout const & lay = cur.paragraph().layout();
 257                 Layout::LaTeXArgMap args = lay.args();
 258                 Layout::LaTeXArgMap::const_iterator const lait = args.find(ia->name());
 259                 if (lait != args.end())
 260                         cotextinsert = (*lait).second.insertcotext;
 261                 else {
 262                         InsetLayout const & il = cur.inset().getLayout();
 263                         args = il.args();
 264                         Layout::LaTeXArgMap::const_iterator const ilait = args.find(ia->name());
 265                         if (ilait != args.end())
 266                                 cotextinsert = (*ilait).second.insertcotext;
 267                 }
 268                 // The argument requests to insert a copy of the co-text to the inset
 269                 if (cotextinsert) {
 270                         docstring ds;
 271                         // If we have a selection within a paragraph, use this
 272                         if (cur.selection() && cur.selBegin().pit() == cur.selEnd().pit())
 273                                 ds = cur.selectionAsString(false);
 274                         // else use the whole paragraph
 275                         else
 276                                 ds = cur.paragraph().asString();
 277                         text->insertInset(cur, inset);
 278                         if (edit)
 279                                 inset->edit(cur, true);
 280                         // Now put co-text into inset
 281                         Font const f(inherit_font, cur.current_font.language());
 282                         if (!ds.empty()) {
 283                                 cur.text()->insertStringAsLines(cur, ds, f);
 284                                 cur.leaveInset(*inset);
 285                         }
 286                         return true;
 287                 }
 288         }
 289
 290         bool gotsel = false;
 291         if (cur.selection()) {
 292                 if (cmd.action() == LFUN_INDEX_INSERT)
 293                                 copySelectionToTemp(cur);
 294                         else
 295                                 cutSelectionToTemp(cur, pastesel);
 296                         cur.clearSelection();
 297                         gotsel = true;
 298         } else if (cmd.action() == LFUN_INDEX_INSERT) {
 299                 gotsel = text->selectWordWhenUnderCursor(cur, WHOLE_WORD);
 300                 copySelectionToTemp(cur);
 301                 cur.clearSelection();
 302         }
 303         text->insertInset(cur, inset);
 304
 305         if (edit)
 306                 inset->edit(cur, true);
 307
 308         if (!gotsel || !pastesel)
 309                 return true;
 310
 311         pasteFromTemp(cur, cur.buffer()->errorList("Paste"));
 312         cur.buffer()->errors("Paste");
 313         cur.clearSelection(); // bug 393
 314         cur.finishUndo();
 315         InsetText * inset_text = inset->asInsetText();
 316         if (inset_text) {
 317                 inset_text->fixParagraphsFont();
 318                 if (!inset_text->allowMultiPar() || cur.lastpit() == 0) {
 319                         // reset first par to default
 320                         cur.text()->paragraphs().begin()
 321                                 ->setPlainOrDefaultLayout(bparams.documentClass());
 322                         cur.pos() = 0;
 323                         cur.pit() = 0;
 324                         // Merge multiple paragraphs -- hack
 325                         while (cur.lastpit() > 0)
 326                                 mergeParagraph(bparams, cur.text()->paragraphs(), 0);
 327                         if (cmd.action() == LFUN_FLEX_INSERT)
 328                                 return true;
 329                         Cursor old = cur;
 330                         cur.leaveInset(*inset);
 331                         if (cmd.action() == LFUN_PREVIEW_INSERT
 332                             || cmd.action() == LFUN_IPA_INSERT)
 333                                 // trigger preview
 334                                 notifyCursorLeavesOrEnters(old, cur);
 335                 }
 336         } else {
 337                 cur.leaveInset(*inset);
 338                 // reset surrounding par to default
 339                 DocumentClass const & dc = bparams.documentClass();
 340                 docstring const layoutname = inset->usePlainLayout()
 341                         ? dc.plainLayoutName()
 342                         : dc.defaultLayoutName();
 343                 text->setLayout(cur, layoutname);
 344         }
 345         return true;
 346 }
 347
 348
 349 string const freefont2string()
 350 {
 351         return freefont.toString(toggleall);
 352 }
 353
 354
 355 /// the type of outline operation
 356 enum OutlineOp {
 357         OutlineUp, // Move this header with text down
 358         OutlineDown,   // Move this header with text up
 359         OutlineIn, // Make this header deeper
 360         OutlineOut // Make this header shallower
 361 };
 362
 363
 364 static void insertSeparator(Cursor & cur, depth_type const depth)
 365 {
 366         Buffer & buf = *cur.buffer();
 367         lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK));
 368         DocumentClass const & tc = buf.params().documentClass();
 369         lyx::dispatch(FuncRequest(LFUN_LAYOUT, from_ascii("\"") + tc.plainLayout().name()
 370                                   + from_ascii("\" ignoreautonests")));
 371         // FIXME: Bibitem mess!
 372         if (cur.prevInset() && cur.prevInset()->lyxCode() == BIBITEM_CODE)
 373                 lyx::dispatch(FuncRequest(LFUN_CHAR_DELETE_BACKWARD));
 374         lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "plain"));
 375         while (cur.paragraph().params().depth() > depth)
 376                 lyx::dispatch(FuncRequest(LFUN_DEPTH_DECREMENT));
 377 }
 378
 379
 380 static void outline(OutlineOp mode, Cursor & cur, Text * text)
 381 {
 382         Buffer & buf = *cur.buffer();
 383         pit_type & pit = cur.pit();
 384         ParagraphList & pars = buf.text().paragraphs();
 385         ParagraphList::iterator const bgn = pars.begin();
 386         // The first paragraph of the area to be copied:
 387         ParagraphList::iterator start = lyx::next(bgn, pit);
 388         // The final paragraph of area to be copied:
 389         ParagraphList::iterator finish = start;
 390         ParagraphList::iterator const end = pars.end();
 391         depth_type const current_depth = cur.paragraph().params().depth();
 392
 393         int const thistoclevel = buf.text().getTocLevel(distance(bgn, start));
 394         int toclevel;
 395
 396         // Move out (down) from this section header
 397         if (finish != end)
 398                 ++finish;
 399
 400         // Seek the one (on same level) below
 401         for (; finish != end; ++finish) {
 402                 toclevel = buf.text().getTocLevel(distance(bgn, finish));
 403                 if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel)
 404                         break;
 405         }
 406
 407         switch (mode) {
 408                 case OutlineUp: {
 409                         if (start == pars.begin())
 410                                 // Nothing to move.
 411                                 return;
 412                         ParagraphList::iterator dest = start;
 413                         // Move out (up) from this header
 414                         if (dest == bgn)
 415                                 return;
 416                         // Search previous same-level header above
 417                         do {
 418                                 --dest;
 419                                 toclevel = buf.text().getTocLevel(distance(bgn, dest));
 420                         } while(dest != bgn
 421                                 && (toclevel == Layout::NOT_IN_TOC
 422                                     || toclevel > thistoclevel));
 423                         // Not found; do nothing
 424                         if (toclevel == Layout::NOT_IN_TOC || toclevel > thistoclevel)
 425                                 return;
 426                         pit_type newpit = distance(bgn, dest);
 427                         pit_type const len = distance(start, finish);
 428                         pit_type const deletepit = pit + len;
 429                         buf.undo().recordUndo(cur, newpit, deletepit - 1);
 430                         // If we move an environment upwards, make sure it is
 431                         // separated from its new neighbour below:
 432                         // If an environment of the same layout follows, and the moved
 433                         // paragraph sequence does not end with a separator, insert one.
 434                         ParagraphList::iterator lastmoved = finish;
 435                         --lastmoved;
 436                         if (start->layout().isEnvironment()
 437                             && dest->layout() == start->layout()
 438                             && !lastmoved->isEnvSeparator(lastmoved->beginOfBody())) {
 439                                 cur.pit() = distance(bgn, lastmoved);
 440                                 cur.pos() = cur.lastpos();
 441                                 insertSeparator(cur, current_depth);
 442                                 cur.pit() = pit;
 443                         }
 444                         // Likewise, if we moved an environment upwards, make sure it
 445                         // is separated from its new neighbour above.
 446                         // The paragraph before the target of movement
 447                         if (dest != bgn) {
 448                                 ParagraphList::iterator before = dest;
 449                                 --before;
 450                                 // Get the parent paragraph (outer in nested context)
 451                                 pit_type const parent =
 452                                         before->params().depth() > current_depth
 453                                                 ? text->depthHook(distance(bgn, before), current_depth)
 454                                                 : distance(bgn, before);
 455                                 // If a environment with same layout preceeds the moved one in the new
 456                                 // position, and there is no separator yet, insert one.
 457                                 if (start->layout().isEnvironment()
 458                                     && pars[parent].layout() == start->layout()
 459                                     && !before->isEnvSeparator(before->beginOfBody())) {
 460                                         cur.pit() = distance(bgn, before);
 461                                         cur.pos() = cur.lastpos();
 462                                         insertSeparator(cur, current_depth);
 463                                         cur.pit() = pit;
 464                                 }
 465                         }
 466                         newpit = distance(bgn, dest);
 467                         pars.splice(dest, start, finish);
 468                         cur.pit() = newpit;
 469                         break;
 470                 }
 471                 case OutlineDown: {
 472                         if (finish == end)
 473                                 // Nothing to move.
 474                                 return;
 475                         // Go one down from *this* header:
 476                         ParagraphList::iterator dest = next(finish, 1);
 477                         // Go further down to find header to insert in front of:
 478                         for (; dest != end; ++dest) {
 479                                 toclevel = buf.text().getTocLevel(distance(bgn, dest));
 480                                 if (toclevel != Layout::NOT_IN_TOC
 481                                       && toclevel <= thistoclevel)
 482                                         break;
 483                         }
 484                         // One such was found, so go on...
 485                         // If we move an environment downwards, make sure it is
 486                         // separated from its new neighbour above.
 487                         pit_type newpit = distance(bgn, dest);
 488                         buf.undo().recordUndo(cur, pit, newpit - 1);
 489                         // The paragraph before the target of movement
 490                         ParagraphList::iterator before = dest;
 491                         --before;
 492                         // Get the parent paragraph (outer in nested context)
 493                         pit_type const parent =
 494                                 before->params().depth() > current_depth
 495                                         ? text->depthHook(distance(bgn, before), current_depth)
 496                                         : distance(bgn, before);
 497                         // If a environment with same layout preceeds the moved one in the new
 498                         // position, and there is no separator yet, insert one.
 499                         if (start->layout().isEnvironment()
 500                             && pars[parent].layout() == start->layout()
 501                             && !before->isEnvSeparator(before->beginOfBody())) {
 502                                 cur.pit() = distance(bgn, before);
 503                                 cur.pos() = cur.lastpos();
 504                                 insertSeparator(cur, current_depth);
 505                                 cur.pit() = pit;
 506                         }
 507                         // Likewise, make sure moved environments are separated
 508                         // from their new neighbour below:
 509                         // If an environment of the same layout follows, and the moved
 510                         // paragraph sequence does not end with a separator, insert one.
 511                         ParagraphList::iterator lastmoved = finish;
 512                         --lastmoved;
 513                         if (dest != end
 514                             && start->layout().isEnvironment()
 515                             && dest->layout() == start->layout()
 516                             && !lastmoved->isEnvSeparator(lastmoved->beginOfBody())) {
 517                                 cur.pit() = distance(bgn, lastmoved);
 518                                 cur.pos() = cur.lastpos();
 519                                 insertSeparator(cur, current_depth);
 520                                 cur.pit() = pit;
 521                         }
 522                         newpit = distance(bgn, dest);
 523                         pit_type const len = distance(start, finish);
 524                         pars.splice(dest, start, finish);
 525                         cur.pit() = newpit - len;
 526                         break;
 527                 }
 528                 case OutlineIn:
 529                 case OutlineOut: {
 530                         pit_type const len = distance(start, finish);
 531                         buf.undo().recordUndo(cur, pit, pit + len - 1);
 532                         for (; start != finish; ++start) {
 533                                 toclevel = buf.text().getTocLevel(distance(bgn, start));
 534                                 if (toclevel == Layout::NOT_IN_TOC)
 535                                         continue;
 536
 537                                 DocumentClass const & tc = buf.params().documentClass();
 538                                 DocumentClass::const_iterator lit = tc.begin();
 539                                 DocumentClass::const_iterator len = tc.end();
 540                                 int const newtoclevel =
 541                                         (mode == OutlineIn ? toclevel + 1 : toclevel - 1);
 542                                 LabelType const oldlabeltype = start->layout().labeltype;
 543
 544                                 for (; lit != len; ++lit) {
 545                                         if (lit->toclevel ==  newtoclevel &&
 546                                              lit->labeltype == oldlabeltype) {
 547                                                 start->setLayout(*lit);
 548                                                 break;
 549                                         }
 550                                 }
 551                         }
 552                         break;
 553                 }
 554         }
 555 }
 556
 557
 558 void Text::number(Cursor & cur)
 559 {
 560         FontInfo font = ignore_font;
 561         font.setNumber(FONT_TOGGLE);
 562         toggleAndShow(cur, this, Font(font, ignore_language));
 563 }
 564
 565
 566 bool Text::isRTL(Paragraph const & par) const
 567 {
 568         Buffer const & buffer = owner_->buffer();
 569         return par.isRTL(buffer.params());
 570 }
 571
 572
 573 namespace {
 574
 575         Language const * getLanguage(Cursor const & cur, string const & lang) {
 576                 return lang.empty() ? cur.getFont().language() : languages.getLanguage(lang);
 577         }
 578
 579 } // namespace
 580
 581
 582 void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 583 {
 584         LYXERR(Debug::ACTION, "Text::dispatch: cmd: " << cmd);
 585
 586         // Dispatch if the cursor is inside the text. It is not the
 587         // case for context menus (bug 5797).
 588         if (cur.text() != this) {
 589                 cur.undispatched();
 590                 return;
 591         }
 592
 593         BufferView * bv = &cur.bv();
 594         TextMetrics * tm = &bv->textMetrics(this);
 595         if (!tm->contains(cur.pit())) {
 596                 lyx::dispatch(FuncRequest(LFUN_SCREEN_SHOW_CURSOR));
 597                 tm = &bv->textMetrics(this);
 598         }
 599
 600         // FIXME: We use the update flag to indicates wether a singlePar or a
 601         // full screen update is needed. We reset it here but shall we restore it
 602         // at the end?
 603         cur.noScreenUpdate();
 604
 605         LBUFERR(this == cur.text());
 606
 607         // NOTE: This should NOT be a reference. See commit 94a5481a.
 608         CursorSlice const oldTopSlice = cur.top();
 609         bool const oldBoundary = cur.boundary();
 610         bool const oldSelection = cur.selection();
 611         // Signals that, even if needsUpdate == false, an update of the
 612         // cursor paragraph is required
 613         bool singleParUpdate = lyxaction.funcHasFlag(cmd.action(),
 614                 LyXAction::SingleParUpdate);
 615         // Signals that a full-screen update is required
 616         bool needsUpdate = !(lyxaction.funcHasFlag(cmd.action(),
 617                 LyXAction::NoUpdate) || singleParUpdate);
 618         bool const last_misspelled = lyxrc.spellcheck_continuously
 619                 && cur.paragraph().isMisspelled(cur.pos(), true);
 620
 621         FuncCode const act = cmd.action();
 622         switch (act) {
 623
 624         case LFUN_PARAGRAPH_MOVE_DOWN: {
 625                 pit_type const pit = cur.pit();
 626                 cur.recordUndo(pit, pit + 1);
 627                 cur.finishUndo();
 628                 pars_.swap(pit, pit + 1);
 629                 needsUpdate = true;
 630                 cur.forceBufferUpdate();
 631                 ++cur.pit();
 632                 break;
 633         }
 634
 635         case LFUN_PARAGRAPH_MOVE_UP: {
 636                 pit_type const pit = cur.pit();
 637                 cur.recordUndo(pit - 1, pit);
 638                 cur.finishUndo();
 639                 pars_.swap(pit, pit - 1);
 640                 --cur.pit();
 641                 needsUpdate = true;
 642                 cur.forceBufferUpdate();
 643                 break;
 644         }
 645
 646         case LFUN_APPENDIX: {
 647                 Paragraph & par = cur.paragraph();
 648                 bool start = !par.params().startOfAppendix();
 649
 650 // FIXME: The code below only makes sense at top level.
 651 // Should LFUN_APPENDIX be restricted to top-level paragraphs?
 652                 // ensure that we have only one start_of_appendix in this document
 653                 // FIXME: this don't work for multipart document!
 654                 for (pit_type tmp = 0, end = pars_.size(); tmp != end; ++tmp) {
 655                         if (pars_[tmp].params().startOfAppendix()) {
 656                                 cur.recordUndo(tmp, tmp);
 657                                 pars_[tmp].params().startOfAppendix(false);
 658                                 break;
 659                         }
 660                 }
 661
 662                 cur.recordUndo();
 663                 par.params().startOfAppendix(start);
 664
 665                 // we can set the refreshing parameters now
 666                 cur.forceBufferUpdate();
 667                 break;
 668         }
 669
 670         case LFUN_WORD_DELETE_FORWARD:
 671                 if (cur.selection())
 672                         cutSelection(cur, false);
 673                 else
 674                         deleteWordForward(cur, cmd.getArg(0) == "force");
 675                 finishChange(cur, false);
 676                 break;
 677
 678         case LFUN_WORD_DELETE_BACKWARD:
 679                 if (cur.selection())
 680                         cutSelection(cur, false);
 681                 else
 682                         deleteWordBackward(cur, cmd.getArg(0) == "force");
 683                 finishChange(cur, false);
 684                 break;
 685
 686         case LFUN_LINE_DELETE_FORWARD:
 687                 if (cur.selection())
 688                         cutSelection(cur, false);
 689                 else
 690                         tm->deleteLineForward(cur);
 691                 finishChange(cur, false);
 692                 break;
 693
 694         case LFUN_BUFFER_BEGIN:
 695         case LFUN_BUFFER_BEGIN_SELECT:
 696                 needsUpdate |= cur.selHandle(act == LFUN_BUFFER_BEGIN_SELECT);
 697                 if (cur.depth() == 1)
 698                         needsUpdate |= cursorTop(cur);
 699                 else
 700                         cur.undispatched();
 701                 cur.screenUpdateFlags(Update::FitCursor);
 702                 break;
 703
 704         case LFUN_BUFFER_END:
 705         case LFUN_BUFFER_END_SELECT:
 706                 needsUpdate |= cur.selHandle(act == LFUN_BUFFER_END_SELECT);
 707                 if (cur.depth() == 1)
 708                         needsUpdate |= cursorBottom(cur);
 709                 else
 710                         cur.undispatched();
 711                 cur.screenUpdateFlags(Update::FitCursor);
 712                 break;
 713
 714         case LFUN_INSET_BEGIN:
 715         case LFUN_INSET_BEGIN_SELECT:
 716                 needsUpdate |= cur.selHandle(act == LFUN_INSET_BEGIN_SELECT);
 717                 if (cur.depth() == 1 || !cur.top().at_begin())
 718                         needsUpdate |= cursorTop(cur);
 719                 else
 720                         cur.undispatched();
 721                 cur.screenUpdateFlags(Update::FitCursor);
 722                 break;
 723
 724         case LFUN_INSET_END:
 725         case LFUN_INSET_END_SELECT:
 726                 needsUpdate |= cur.selHandle(act == LFUN_INSET_END_SELECT);
 727                 if (cur.depth() == 1 || !cur.top().at_end())
 728                         needsUpdate |= cursorBottom(cur);
 729                 else
 730                         cur.undispatched();
 731                 cur.screenUpdateFlags(Update::FitCursor);
 732                 break;
 733
 734         case LFUN_CHAR_FORWARD:
 735         case LFUN_CHAR_FORWARD_SELECT: {
 736                 //LYXERR0(" LFUN_CHAR_FORWARD[SEL]:\n" << cur);
 737                 needsUpdate |= cur.selHandle(act == LFUN_CHAR_FORWARD_SELECT);
 738                 bool const cur_moved = cursorForward(cur);
 739                 needsUpdate |= cur_moved;
 740
 741                 if (!cur_moved && oldTopSlice == cur.top()
 742                                && cur.boundary() == oldBoundary) {
 743                         cur.undispatched();
 744                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 745
 746                         // we will probably be moving out the inset, so we should execute
 747                         // the depm-mechanism, but only when the cursor has a place to
 748                         // go outside this inset, i.e. in a slice above.
 749                         if (cur.depth() > 1 && cur.pos() == cur.lastpos()
 750                                   && cur.pit() == cur.lastpit()) {
 751                                 // The cursor hasn't changed yet. To give the
 752                                 // DEPM the possibility of doing something we must
 753                                 // provide it with two different cursors.
 754                                 Cursor dummy = cur;
 755                                 dummy.pos() = dummy.pit() = 0;
 756                                 if (cur.bv().checkDepm(dummy, cur))
 757                                         cur.forceBufferUpdate();
 758                         }
 759                 }
 760                 break;
 761         }
 762
 763         case LFUN_CHAR_BACKWARD:
 764         case LFUN_CHAR_BACKWARD_SELECT: {
 765                 //lyxerr << "handle LFUN_CHAR_BACKWARD[_SELECT]:\n" << cur << endl;
 766                 needsUpdate |= cur.selHandle(act == LFUN_CHAR_BACKWARD_SELECT);
 767                 bool const cur_moved = cursorBackward(cur);
 768                 needsUpdate |= cur_moved;
 769
 770                 if (!cur_moved && oldTopSlice == cur.top()
 771                                && cur.boundary() == oldBoundary) {
 772                         cur.undispatched();
 773                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
 774
 775                         // we will probably be moving out the inset, so we should execute
 776                         // the depm-mechanism, but only when the cursor has a place to
 777                         // go outside this inset, i.e. in a slice above.
 778                         if (cur.depth() > 1 && cur.pos() == 0 && cur.pit() == 0) {
 779                                 // The cursor hasn't changed yet. To give the
 780                                 // DEPM the possibility of doing something we must
 781                                 // provide it with two different cursors.
 782                                 Cursor dummy = cur;
 783                                 dummy.pos() = cur.lastpos();
 784                                 dummy.pit() = cur.lastpit();
 785                                 if (cur.bv().checkDepm(dummy, cur))
 786                                         cur.forceBufferUpdate();
 787                         }
 788                 }
 789                 break;
 790         }
 791
 792         case LFUN_CHAR_LEFT:
 793         case LFUN_CHAR_LEFT_SELECT:
 794                 if (lyxrc.visual_cursor) {
 795                         needsUpdate |= cur.selHandle(act == LFUN_CHAR_LEFT_SELECT);
 796                         bool const cur_moved = cursorVisLeft(cur);
 797                         needsUpdate |= cur_moved;
 798                         if (!cur_moved && oldTopSlice == cur.top()
 799                                        && cur.boundary() == oldBoundary) {
 800                                 cur.undispatched();
 801                                 cmd = FuncRequest(LFUN_FINISHED_LEFT);
 802                         }
 803                 } else {
 804                         if (cur.reverseDirectionNeeded()) {
 805                                 cmd.setAction(cmd.action() == LFUN_CHAR_LEFT_SELECT ?
 806                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD);
 807                         } else {
 808                                 cmd.setAction(cmd.action() == LFUN_CHAR_LEFT_SELECT ?
 809                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD);
 810                         }
 811                         dispatch(cur, cmd);
 812                         return;
 813                 }
 814                 break;
 815
 816         case LFUN_CHAR_RIGHT:
 817         case LFUN_CHAR_RIGHT_SELECT:
 818                 if (lyxrc.visual_cursor) {
 819                         needsUpdate |= cur.selHandle(cmd.action() == LFUN_CHAR_RIGHT_SELECT);
 820                         bool const cur_moved = cursorVisRight(cur);
 821                         needsUpdate |= cur_moved;
 822                         if (!cur_moved && oldTopSlice == cur.top()
 823                                        && cur.boundary() == oldBoundary) {
 824                                 cur.undispatched();
 825                                 cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 826                         }
 827                 } else {
 828                         if (cur.reverseDirectionNeeded()) {
 829                                 cmd.setAction(cmd.action() == LFUN_CHAR_RIGHT_SELECT ?
 830                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD);
 831                         } else {
 832                                 cmd.setAction(cmd.action() == LFUN_CHAR_RIGHT_SELECT ?
 833                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD);
 834                         }
 835                         dispatch(cur, cmd);
 836                         return;
 837                 }
 838                 break;
 839
 840
 841         case LFUN_UP_SELECT:
 842         case LFUN_DOWN_SELECT:
 843         case LFUN_UP:
 844         case LFUN_DOWN: {
 845                 // stop/start the selection
 846                 bool select = cmd.action() == LFUN_DOWN_SELECT ||
 847                         cmd.action() == LFUN_UP_SELECT;
 848
 849                 // move cursor up/down
 850                 bool up = cmd.action() == LFUN_UP_SELECT || cmd.action() == LFUN_UP;
 851                 bool const atFirstOrLastRow = cur.atFirstOrLastRow(up);
 852
 853                 if (!atFirstOrLastRow) {
 854                         needsUpdate |= cur.selHandle(select);
 855                         cur.upDownInText(up, needsUpdate);
 856                         needsUpdate |= cur.beforeDispatchCursor().inMathed();
 857                 } else {
 858                         pos_type newpos = up ? 0 : cur.lastpos();
 859                         if (lyxrc.mac_like_cursor_movement && cur.pos() != newpos) {
 860                                 needsUpdate |= cur.selHandle(select);
 861                                 // we do not reset the targetx of the cursor
 862                                 cur.pos() = newpos;
 863                                 needsUpdate |= bv->checkDepm(cur, bv->cursor());
 864                                 cur.updateTextTargetOffset();
 865                                 if (needsUpdate)
 866                                         cur.forceBufferUpdate();
 867                                 break;
 868                         }
 869
 870                         // if the cursor cannot be moved up or down do not remove
 871                         // the selection right now, but wait for the next dispatch.
 872                         if (select)
 873                                 needsUpdate |= cur.selHandle(select);
 874                         cur.upDownInText(up, needsUpdate);
 875                         cur.undispatched();
 876                 }
 877
 878                 break;
 879         }
 880
 881         case LFUN_PARAGRAPH_UP:
 882         case LFUN_PARAGRAPH_UP_SELECT:
 883                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_PARAGRAPH_UP_SELECT);
 884                 needsUpdate |= cursorUpParagraph(cur);
 885                 break;
 886
 887         case LFUN_PARAGRAPH_DOWN:
 888         case LFUN_PARAGRAPH_DOWN_SELECT:
 889                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_PARAGRAPH_DOWN_SELECT);
 890                 needsUpdate |= cursorDownParagraph(cur);
 891                 break;
 892
 893         case LFUN_LINE_BEGIN:
 894         case LFUN_LINE_BEGIN_SELECT:
 895                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_LINE_BEGIN_SELECT);
 896                 needsUpdate |= tm->cursorHome(cur);
 897                 break;
 898
 899         case LFUN_LINE_END:
 900         case LFUN_LINE_END_SELECT:
 901                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_LINE_END_SELECT);
 902                 needsUpdate |= tm->cursorEnd(cur);
 903                 break;
 904
 905         case LFUN_SECTION_SELECT: {
 906                 Buffer const & buf = *cur.buffer();
 907                 pit_type const pit = cur.pit();
 908                 ParagraphList & pars = buf.text().paragraphs();
 909                 ParagraphList::iterator bgn = pars.begin();
 910                 // The first paragraph of the area to be selected:
 911                 ParagraphList::iterator start = lyx::next(bgn, pit);
 912                 // The final paragraph of area to be selected:
 913                 ParagraphList::iterator finish = start;
 914                 ParagraphList::iterator end = pars.end();
 915
 916                 int const thistoclevel = buf.text().getTocLevel(distance(bgn, start));
 917                 if (thistoclevel == Layout::NOT_IN_TOC)
 918                         break;
 919
 920                 cur.pos() = 0;
 921                 Cursor const old_cur = cur;
 922                 needsUpdate |= cur.selHandle(true);
 923
 924                 // Move out (down) from this section header
 925                 if (finish != end)
 926                         ++finish;
 927
 928                 // Seek the one (on same level) below
 929                 for (; finish != end; ++finish, ++cur.pit()) {
 930                         int const toclevel = buf.text().getTocLevel(distance(bgn, finish));
 931                         if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel)
 932                                 break;
 933                 }
 934                 cur.pos() = cur.lastpos();
 935                 cur.boundary(false);
 936                 cur.setCurrentFont();
 937
 938                 needsUpdate |= cur != old_cur;
 939                 break;
 940         }
 941
 942         case LFUN_WORD_RIGHT:
 943         case LFUN_WORD_RIGHT_SELECT:
 944                 if (lyxrc.visual_cursor) {
 945                         needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_RIGHT_SELECT);
 946                         bool const cur_moved = cursorVisRightOneWord(cur);
 947                         needsUpdate |= cur_moved;
 948                         if (!cur_moved && oldTopSlice == cur.top()
 949                                        && cur.boundary() == oldBoundary) {
 950                                 cur.undispatched();
 951                                 cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 952                         }
 953                 } else {
 954                         if (cur.reverseDirectionNeeded()) {
 955                                 cmd.setAction(cmd.action() == LFUN_WORD_RIGHT_SELECT ?
 956                                                 LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD);
 957                         } else {
 958                                 cmd.setAction(cmd.action() == LFUN_WORD_RIGHT_SELECT ?
 959                                                 LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD);
 960                         }
 961                         dispatch(cur, cmd);
 962                         return;
 963                 }
 964                 break;
 965
 966         case LFUN_WORD_FORWARD:
 967         case LFUN_WORD_FORWARD_SELECT: {
 968                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_FORWARD_SELECT);
 969                 bool const cur_moved = cursorForwardOneWord(cur);
 970                 needsUpdate |= cur_moved;
 971
 972                 if (!cur_moved && oldTopSlice == cur.top()
 973                                && cur.boundary() == oldBoundary) {
 974                         cur.undispatched();
 975                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 976
 977                         // we will probably be moving out the inset, so we should execute
 978                         // the depm-mechanism, but only when the cursor has a place to
 979                         // go outside this inset, i.e. in a slice above.
 980                         if (cur.depth() > 1 && cur.pos() == cur.lastpos()
 981                                   && cur.pit() == cur.lastpit()) {
 982                                 // The cursor hasn't changed yet. To give the
 983                                 // DEPM the possibility of doing something we must
 984                                 // provide it with two different cursors.
 985                                 Cursor dummy = cur;
 986                                 dummy.pos() = dummy.pit() = 0;
 987                                 if (cur.bv().checkDepm(dummy, cur))
 988                                         cur.forceBufferUpdate();
 989                         }
 990                 }
 991                 break;
 992         }
 993
 994         case LFUN_WORD_LEFT:
 995         case LFUN_WORD_LEFT_SELECT:
 996                 if (lyxrc.visual_cursor) {
 997                         needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_LEFT_SELECT);
 998                         bool const cur_moved = cursorVisLeftOneWord(cur);
 999                         needsUpdate |= cur_moved;
1000                         if (!cur_moved && oldTopSlice == cur.top()
1001                                        && cur.boundary() == oldBoundary) {
1002                                 cur.undispatched();
1003                                 cmd = FuncRequest(LFUN_FINISHED_LEFT);
1004                         }
1005                 } else {
1006                         if (cur.reverseDirectionNeeded()) {
1007                                 cmd.setAction(cmd.action() == LFUN_WORD_LEFT_SELECT ?
1008                                                 LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD);
1009                         } else {
1010                                 cmd.setAction(cmd.action() == LFUN_WORD_LEFT_SELECT ?
1011                                                 LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD);
1012                         }
1013                         dispatch(cur, cmd);
1014                         return;
1015                 }
1016                 break;
1017
1018         case LFUN_WORD_BACKWARD:
1019         case LFUN_WORD_BACKWARD_SELECT: {
1020                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_BACKWARD_SELECT);
1021                 bool const cur_moved = cursorBackwardOneWord(cur);
1022                 needsUpdate |= cur_moved;
1023
1024                 if (!cur_moved && oldTopSlice == cur.top()
1025                                && cur.boundary() == oldBoundary) {
1026                         cur.undispatched();
1027                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
1028
1029                         // we will probably be moving out the inset, so we should execute
1030                         // the depm-mechanism, but only when the cursor has a place to
1031                         // go outside this inset, i.e. in a slice above.
1032                         if (cur.depth() > 1 && cur.pos() == 0
1033                                   && cur.pit() == 0) {
1034                                 // The cursor hasn't changed yet. To give the
1035                                 // DEPM the possibility of doing something we must
1036                                 // provide it with two different cursors.
1037                                 Cursor dummy = cur;
1038                                 dummy.pos() = cur.lastpos();
1039                                 dummy.pit() = cur.lastpit();
1040                                 if (cur.bv().checkDepm(dummy, cur))
1041                                         cur.forceBufferUpdate();
1042                         }
1043                 }
1044                 break;
1045         }
1046
1047         case LFUN_WORD_SELECT: {
1048                 selectWord(cur, WHOLE_WORD);
1049                 finishChange(cur, true);
1050                 break;
1051         }
1052
1053         case LFUN_NEWLINE_INSERT: {
1054                 InsetNewlineParams inp;
1055                 docstring arg = cmd.argument();
1056                 if (arg == "linebreak")
1057                         inp.kind = InsetNewlineParams::LINEBREAK;
1058                 else
1059                         inp.kind = InsetNewlineParams::NEWLINE;
1060                 cap::replaceSelection(cur);
1061                 cur.recordUndo();
1062                 cur.insert(new InsetNewline(inp));
1063                 cur.posForward();
1064                 moveCursor(cur, false);
1065                 break;
1066         }
1067
1068         case LFUN_TAB_INSERT: {
1069                 bool const multi_par_selection = cur.selection() &&
1070                         cur.selBegin().pit() != cur.selEnd().pit();
1071                 if (multi_par_selection) {
1072                         // If there is a multi-paragraph selection, a tab is inserted
1073                         // at the beginning of each paragraph.
1074                         cur.recordUndoSelection();
1075                         pit_type const pit_end = cur.selEnd().pit();
1076                         for (pit_type pit = cur.selBegin().pit(); pit <= pit_end; pit++) {
1077                                 pars_[pit].insertChar(0, '\t',
1078                                                       bv->buffer().params().track_changes);
1079                                 // Update the selection pos to make sure the selection does not
1080                                 // change as the inserted tab will increase the logical pos.
1081                                 if (cur.realAnchor().pit() == pit)
1082                                         cur.realAnchor().forwardPos();
1083                                 if (cur.pit() == pit)
1084                                         cur.forwardPos();
1085                         }
1086                         cur.finishUndo();
1087                 } else {
1088                         // Maybe we shouldn't allow tabs within a line, because they
1089                         // are not (yet) aligned as one might do expect.
1090                         FuncRequest cmd(LFUN_SELF_INSERT, from_ascii("\t"));
1091                         dispatch(cur, cmd);
1092                 }
1093                 break;
1094         }
1095
1096         case LFUN_TAB_DELETE: {
1097                 bool const tc = bv->buffer().params().track_changes;
1098                 if (cur.selection()) {
1099                         // If there is a selection, a tab (if present) is removed from
1100                         // the beginning of each paragraph.
1101                         cur.recordUndoSelection();
1102                         pit_type const pit_end = cur.selEnd().pit();
1103                         for (pit_type pit = cur.selBegin().pit(); pit <= pit_end; pit++) {
1104                                 Paragraph & par = paragraphs()[pit];
1105                                 if (par.empty())
1106                                         continue;
1107                                 char_type const c = par.getChar(0);
1108                                 if (c == '\t' || c == ' ') {
1109                                         // remove either 1 tab or 4 spaces.
1110                                         int const n = (c == ' ' ? 4 : 1);
1111                                         for (int i = 0; i < n
1112                                                   && !par.empty() && par.getChar(0) == c; ++i) {
1113                                                 if (cur.pit() == pit)
1114                                                         cur.posBackward();
1115                                                 if (cur.realAnchor().pit() == pit
1116                                                           && cur.realAnchor().pos() > 0 )
1117                                                         cur.realAnchor().backwardPos();
1118                                                 par.eraseChar(0, tc);
1119                                         }
1120                                 }
1121                         }
1122                         cur.finishUndo();
1123                 } else {
1124                         // If there is no selection, try to remove a tab or some spaces
1125                         // before the position of the cursor.
1126                         Paragraph & par = paragraphs()[cur.pit()];
1127                         pos_type const pos = cur.pos();
1128
1129                         if (pos == 0)
1130                                 break;
1131
1132                         char_type const c = par.getChar(pos - 1);
1133                         cur.recordUndo();
1134                         if (c == '\t') {
1135                                 cur.posBackward();
1136                                 par.eraseChar(cur.pos(), tc);
1137                         } else
1138                                 for (int n_spaces = 0;
1139                                      cur.pos() > 0
1140                                              && par.getChar(cur.pos() - 1) == ' '
1141                                              && n_spaces < 4;
1142                                      ++n_spaces) {
1143                                         cur.posBackward();
1144                                         par.eraseChar(cur.pos(), tc);
1145                                 }
1146                         cur.finishUndo();
1147                 }
1148                 break;
1149         }
1150
1151         case LFUN_CHAR_DELETE_FORWARD:
1152                 if (!cur.selection()) {
1153                         if (cur.pos() == cur.paragraph().size())
1154                                 // Par boundary, force full-screen update
1155                                 singleParUpdate = false;
1156                         else if (cmd.getArg(0) != "force" && cur.confirmDeletion()) {
1157                                 cur.resetAnchor();
1158                                 cur.selection(true);
1159                                 cur.posForward();
1160                                 cur.setSelection();
1161                                 break;
1162                         }
1163                         needsUpdate |= erase(cur);
1164                         cur.resetAnchor();
1165                 } else {
1166                         cutSelection(cur, false);
1167                         singleParUpdate = false;
1168                 }
1169                 moveCursor(cur, false);
1170                 break;
1171
1172         case LFUN_CHAR_DELETE_BACKWARD:
1173                 if (!cur.selection()) {
1174                         if (bv->getIntl().getTransManager().backspace()) {
1175                                 bool par_boundary = cur.pos() == 0;
1176                                 bool first_par = cur.pit() == 0;
1177                                 // Par boundary, full-screen update
1178                                 if (par_boundary)
1179                                         singleParUpdate = false;
1180                                 else if (cmd.getArg(0) != "force" && cur.confirmDeletion(true)) {
1181                                         cur.resetAnchor();
1182                                         cur.selection(true);
1183                                         cur.posBackward();
1184                                         cur.setSelection();
1185                                         break;
1186                                 }
1187                                 needsUpdate |= backspace(cur);
1188                                 cur.resetAnchor();
1189                                 if (par_boundary && !first_par && cur.pos() > 0
1190                                     && cur.paragraph().isEnvSeparator(cur.pos() - 1)) {
1191                                         needsUpdate |= backspace(cur);
1192                                         cur.resetAnchor();
1193                                 }
1194                         }
1195                 } else {
1196                         cutSelection(cur, false);
1197                         singleParUpdate = false;
1198                 }
1199                 break;
1200
1201         case LFUN_PARAGRAPH_BREAK: {
1202                 cap::replaceSelection(cur);
1203                 pit_type pit = cur.pit();
1204                 Paragraph const & par = pars_[pit];
1205                 bool lastpar = (pit == pit_type(pars_.size() - 1));
1206                 Paragraph const & nextpar = lastpar ? par : pars_[pit + 1];
1207                 pit_type prev = pit > 0 ? depthHook(pit, par.getDepth()) : pit;
1208                 if (prev < pit && cur.pos() == par.beginOfBody()
1209                     && !par.size() && !par.isEnvSeparator(cur.pos())
1210                     && !par.layout().keepempty
1211                     && !par.layout().isCommand()
1212                     && pars_[prev].layout() != par.layout()
1213                     && pars_[prev].layout().isEnvironment()
1214                     && !nextpar.isEnvSeparator(nextpar.beginOfBody())) {
1215                         if (par.layout().isEnvironment()
1216                             && pars_[prev].getDepth() == par.getDepth()) {
1217                                 docstring const layout = par.layout().name();
1218                                 DocumentClass const & tc = bv->buffer().params().documentClass();
1219                                 lyx::dispatch(FuncRequest(LFUN_LAYOUT, tc.plainLayout().name()));
1220                                 lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "plain"));
1221                                 lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse"));
1222                                 lyx::dispatch(FuncRequest(LFUN_LAYOUT, layout));
1223                         } else {
1224                                 lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "plain"));
1225                                 breakParagraph(cur);
1226                         }
1227                         Font const f(inherit_font, cur.current_font.language());
1228                         pars_[cur.pit() - 1].resetFonts(f);
1229                 } else {
1230                         if (par.isEnvSeparator(cur.pos()) && cmd.getArg(1) != "ignoresep")
1231                                 cur.posForward();
1232                         breakParagraph(cur, cmd.getArg(0) == "inverse");
1233                 }
1234                 cur.resetAnchor();
1235                 // If we have a list and autoinsert item insets,
1236                 // insert them now.
1237                 Layout::LaTeXArgMap args = par.layout().args();
1238                 Layout::LaTeXArgMap::const_iterator lait = args.begin();
1239                 Layout::LaTeXArgMap::const_iterator const laend = args.end();
1240                 for (; lait != laend; ++lait) {
1241                         Layout::latexarg arg = (*lait).second;
1242                         if (arg.autoinsert && prefixIs((*lait).first, "item:")) {
1243                                 FuncRequest cmd(LFUN_ARGUMENT_INSERT, (*lait).first);
1244                                 lyx::dispatch(cmd);
1245                         }
1246                 }
1247                 break;
1248         }
1249
1250         case LFUN_INSET_INSERT: {
1251                 cur.recordUndo();
1252
1253                 // We have to avoid triggering InstantPreview loading
1254                 // before inserting into the document. See bug #5626.
1255                 bool loaded = bv->buffer().isFullyLoaded();
1256                 bv->buffer().setFullyLoaded(false);
1257                 Inset * inset = createInset(&bv->buffer(), cmd);
1258                 bv->buffer().setFullyLoaded(loaded);
1259
1260                 if (inset) {
1261                         // FIXME (Abdel 01/02/2006):
1262                         // What follows would be a partial fix for bug 2154:
1263                         //   http://www.lyx.org/trac/ticket/2154
1264                         // This automatically put the label inset _after_ a
1265                         // numbered section. It should be possible to extend the mechanism
1266                         // to any kind of LateX environement.
1267                         // The correct way to fix that bug would be at LateX generation.
1268                         // I'll let the code here for reference as it could be used for some
1269                         // other feature like "automatic labelling".
1270                         /*
1271                         Paragraph & par = pars_[cur.pit()];
1272                         if (inset->lyxCode() == LABEL_CODE
1273                                 && !par.layout().counter.empty()) {
1274                                 // Go to the end of the paragraph
1275                                 // Warning: Because of Change-Tracking, the last
1276                                 // position is 'size()' and not 'size()-1':
1277                                 cur.pos() = par.size();
1278                                 // Insert a new paragraph
1279                                 FuncRequest fr(LFUN_PARAGRAPH_BREAK);
1280                                 dispatch(cur, fr);
1281                         }
1282                         */
1283                         if (cur.selection())
1284                                 cutSelection(cur, false);
1285                         cur.insert(inset);
1286                         cur.forceBufferUpdate();
1287                         if (inset->editable() && inset->asInsetText())
1288                                 inset->edit(cur, true);
1289                         else
1290                                 cur.posForward();
1291
1292                         // trigger InstantPreview now
1293                         if (inset->lyxCode() == EXTERNAL_CODE) {
1294                                 InsetExternal & ins =
1295                                         static_cast<InsetExternal &>(*inset);
1296                                 ins.updatePreview();
1297                         }
1298                 }
1299
1300                 break;
1301         }
1302
1303         case LFUN_INSET_DISSOLVE: {
1304                 if (dissolveInset(cur)) {
1305                         needsUpdate = true;
1306                         cur.forceBufferUpdate();
1307                 }
1308                 break;
1309         }
1310
1311         case LFUN_SET_GRAPHICS_GROUP: {
1312                 InsetGraphics * ins = graphics::getCurrentGraphicsInset(cur);
1313                 if (!ins)
1314                         break;
1315
1316                 cur.recordUndo();
1317
1318                 string id = to_utf8(cmd.argument());
1319                 string grp = graphics::getGroupParams(bv->buffer(), id);
1320                 InsetGraphicsParams tmp, inspar = ins->getParams();
1321
1322                 if (id.empty())
1323                         inspar.groupId = to_utf8(cmd.argument());
1324                 else {
1325                         InsetGraphics::string2params(grp, bv->buffer(), tmp);
1326                         tmp.filename = inspar.filename;
1327                         inspar = tmp;
1328                 }
1329
1330                 ins->setParams(inspar);
1331                 break;
1332         }
1333
1334         case LFUN_SPACE_INSERT:
1335                 if (cur.paragraph().layout().free_spacing)
1336                         insertChar(cur, ' ');
1337                 else {
1338                         doInsertInset(cur, this, cmd, false, false);
1339                         cur.posForward();
1340                 }
1341                 moveCursor(cur, false);
1342                 break;
1343
1344         case LFUN_SPECIALCHAR_INSERT: {
1345                 string const name = to_utf8(cmd.argument());
1346                 if (name == "hyphenation")
1347                         specialChar(cur, InsetSpecialChar::HYPHENATION);
1348                 else if (name == "allowbreak")
1349                         specialChar(cur, InsetSpecialChar::ALLOWBREAK);
1350                 else if (name == "ligature-break")
1351                         specialChar(cur, InsetSpecialChar::LIGATURE_BREAK);
1352                 else if (name == "slash")
1353                         specialChar(cur, InsetSpecialChar::SLASH);
1354                 else if (name == "nobreakdash")
1355                         specialChar(cur, InsetSpecialChar::NOBREAKDASH);
1356                 else if (name == "dots")
1357                         specialChar(cur, InsetSpecialChar::LDOTS);
1358                 else if (name == "end-of-sentence")
1359                         specialChar(cur, InsetSpecialChar::END_OF_SENTENCE);
1360                 else if (name == "menu-separator")
1361                         specialChar(cur, InsetSpecialChar::MENU_SEPARATOR);
1362                 else if (name == "lyx")
1363                         specialChar(cur, InsetSpecialChar::PHRASE_LYX);
1364                 else if (name == "tex")
1365                         specialChar(cur, InsetSpecialChar::PHRASE_TEX);
1366                 else if (name == "latex")
1367                         specialChar(cur, InsetSpecialChar::PHRASE_LATEX);
1368                 else if (name == "latex2e")
1369                         specialChar(cur, InsetSpecialChar::PHRASE_LATEX2E);
1370                 else if (name.empty())
1371                         lyxerr << "LyX function 'specialchar-insert' needs an argument." << endl;
1372                 else
1373                         lyxerr << "Wrong argument for LyX function 'specialchar-insert'." << endl;
1374                 break;
1375         }
1376
1377         case LFUN_IPAMACRO_INSERT: {
1378                 string const arg = cmd.getArg(0);
1379                 if (arg == "deco") {
1380                         // Open the inset, and move the current selection
1381                         // inside it.
1382                         doInsertInset(cur, this, cmd, true, true);
1383                         cur.posForward();
1384                         // Some insets are numbered, others are shown in the outline pane so
1385                         // let's update the labels and the toc backend.
1386                         cur.forceBufferUpdate();
1387                         break;
1388                 }
1389                 if (arg == "tone-falling")
1390                         ipaChar(cur, InsetIPAChar::TONE_FALLING);
1391                 else if (arg == "tone-rising")
1392                         ipaChar(cur, InsetIPAChar::TONE_RISING);
1393                 else if (arg == "tone-high-rising")
1394                         ipaChar(cur, InsetIPAChar::TONE_HIGH_RISING);
1395                 else if (arg == "tone-low-rising")
1396                         ipaChar(cur, InsetIPAChar::TONE_LOW_RISING);
1397                 else if (arg == "tone-high-rising-falling")
1398                         ipaChar(cur, InsetIPAChar::TONE_HIGH_RISING_FALLING);
1399                 else if (arg.empty())
1400                         lyxerr << "LyX function 'ipamacro-insert' needs an argument." << endl;
1401                 else
1402                         lyxerr << "Wrong argument for LyX function 'ipamacro-insert'." << endl;
1403                 break;
1404         }
1405
1406         case LFUN_WORD_UPCASE:
1407                 changeCase(cur, text_uppercase, cmd.getArg(0) == "partial");
1408                 break;
1409
1410         case LFUN_WORD_LOWCASE:
1411                 changeCase(cur, text_lowercase, cmd.getArg(0) == "partial");
1412                 break;
1413
1414         case LFUN_WORD_CAPITALIZE:
1415                 changeCase(cur, text_capitalization, cmd.getArg(0) == "partial");
1416                 break;
1417
1418         case LFUN_CHARS_TRANSPOSE:
1419                 charsTranspose(cur);
1420                 break;
1421
1422         case LFUN_PASTE: {
1423                 cur.message(_("Paste"));
1424                 LASSERT(cur.selBegin().idx() == cur.selEnd().idx(), break);
1425                 cap::replaceSelection(cur);
1426
1427                 // without argument?
1428                 string const arg = to_utf8(cmd.argument());
1429                 if (arg.empty()) {
1430                         bool tryGraphics = true;
1431                         if (theClipboard().isInternal())
1432                                 pasteFromStack(cur, bv->buffer().errorList("Paste"), 0);
1433                         else if (theClipboard().hasTextContents()) {
1434                                 if (pasteClipboardText(cur, bv->buffer().errorList("Paste"),
1435                                                        true, Clipboard::AnyTextType))
1436                                         tryGraphics = false;
1437                         }
1438                         if (tryGraphics && theClipboard().hasGraphicsContents())
1439                                 pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"));
1440                 } else if (isStrUnsignedInt(arg)) {
1441                         // we have a numerical argument
1442                         pasteFromStack(cur, bv->buffer().errorList("Paste"),
1443                                        convert<unsigned int>(arg));
1444                 } else if (arg == "html" || arg == "latex") {
1445                         Clipboard::TextType type = (arg == "html") ?
1446                                 Clipboard::HtmlTextType : Clipboard::LaTeXTextType;
1447                         pasteClipboardText(cur, bv->buffer().errorList("Paste"), true, type);
1448                 } else {
1449                         Clipboard::GraphicsType type = Clipboard::AnyGraphicsType;
1450                         if (arg == "pdf")
1451                                 type = Clipboard::PdfGraphicsType;
1452                         else if (arg == "png")
1453                                 type = Clipboard::PngGraphicsType;
1454                         else if (arg == "jpeg")
1455                                 type = Clipboard::JpegGraphicsType;
1456                         else if (arg == "linkback")
1457                                 type = Clipboard::LinkBackGraphicsType;
1458                         else if (arg == "emf")
1459                                 type = Clipboard::EmfGraphicsType;
1460                         else if (arg == "wmf")
1461                                 type = Clipboard::WmfGraphicsType;
1462                         else
1463                                 // we also check in getStatus()
1464                                 LYXERR0("Unrecognized graphics type: " << arg);
1465
1466                         pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"), type);
1467                 }
1468
1469                 bv->buffer().errors("Paste");
1470                 cur.clearSelection(); // bug 393
1471                 cur.finishUndo();
1472                 break;
1473         }
1474
1475         case LFUN_CUT:
1476                 cutSelection(cur, true);
1477                 cur.message(_("Cut"));
1478                 break;
1479
1480         case LFUN_COPY:
1481                 copySelection(cur);
1482                 cur.message(_("Copy"));
1483                 break;
1484
1485         case LFUN_SERVER_GET_XY:
1486                 cur.message(from_utf8(
1487                         convert<string>(tm->cursorX(cur.top(), cur.boundary()))
1488                         + ' ' + convert<string>(tm->cursorY(cur.top(), cur.boundary()))));
1489                 break;
1490
1491         case LFUN_SERVER_SET_XY: {
1492                 int x = 0;
1493                 int y = 0;
1494                 istringstream is(to_utf8(cmd.argument()));
1495                 is >> x >> y;
1496                 if (!is)
1497                         lyxerr << "SETXY: Could not parse coordinates in '"
1498                                << to_utf8(cmd.argument()) << endl;
1499                 else
1500                         tm->setCursorFromCoordinates(cur, x, y);
1501                 break;
1502         }
1503
1504         case LFUN_SERVER_GET_LAYOUT:
1505                 cur.message(cur.paragraph().layout().name());
1506                 break;
1507
1508         case LFUN_LAYOUT: {
1509                 bool const ignoreautonests = cmd.getArg(1) == "ignoreautonests";
1510                 docstring layout = ignoreautonests ? from_utf8(cmd.getArg(0)) : cmd.argument();
1511                 LYXERR(Debug::INFO, "LFUN_LAYOUT: (arg) " << to_utf8(layout));
1512
1513                 Paragraph const & para = cur.paragraph();
1514                 docstring const old_layout = para.layout().name();
1515                 DocumentClass const & tclass = bv->buffer().params().documentClass();
1516
1517                 if (layout.empty())
1518                         layout = tclass.defaultLayoutName();
1519
1520                 if (owner_->forcePlainLayout())
1521                         // in this case only the empty layout is allowed
1522                         layout = tclass.plainLayoutName();
1523                 else if (para.usePlainLayout()) {
1524                         // in this case, default layout maps to empty layout
1525                         if (layout == tclass.defaultLayoutName())
1526                                 layout = tclass.plainLayoutName();
1527                 } else {
1528                         // otherwise, the empty layout maps to the default
1529                         if (layout == tclass.plainLayoutName())
1530                                 layout = tclass.defaultLayoutName();
1531                 }
1532
1533                 bool hasLayout = tclass.hasLayout(layout);
1534
1535                 // If the entry is obsolete, use the new one instead.
1536                 if (hasLayout) {
1537                         docstring const & obs = tclass[layout].obsoleted_by();
1538                         if (!obs.empty())
1539                                 layout = obs;
1540                 }
1541
1542                 if (!hasLayout) {
1543                         cur.errorMessage(from_utf8(N_("Layout ")) + cmd.argument() +
1544                                 from_utf8(N_(" not known")));
1545                         break;
1546                 }
1547
1548                 bool change_layout = (old_layout != layout);
1549
1550                 if (!change_layout && cur.selection() &&
1551                         cur.selBegin().pit() != cur.selEnd().pit())
1552                 {
1553                         pit_type spit = cur.selBegin().pit();
1554                         pit_type epit = cur.selEnd().pit() + 1;
1555                         while (spit != epit) {
1556                                 if (pars_[spit].layout().name() != old_layout) {
1557                                         change_layout = true;
1558                                         break;
1559                                 }
1560                                 ++spit;
1561                         }
1562                 }
1563
1564                 if (change_layout) {
1565                         setLayout(cur, layout);
1566                         if (cur.pit() > 0 && !ignoreautonests) {
1567                                 set<docstring> const & autonests =
1568                                                 pars_[cur.pit() - 1].layout().autonests();
1569                                 set<docstring> const & autonested =
1570                                                 pars_[cur.pit()].layout().isAutonestedBy();
1571                                 if (autonests.find(layout) != autonests.end()
1572                                                 || autonested.find(old_layout) != autonested.end())
1573                                         lyx::dispatch(FuncRequest(LFUN_DEPTH_INCREMENT));
1574                         }
1575                 }
1576
1577                 Layout::LaTeXArgMap args = tclass[layout].args();
1578                 Layout::LaTeXArgMap::const_iterator lait = args.begin();
1579                 Layout::LaTeXArgMap::const_iterator const laend = args.end();
1580                 for (; lait != laend; ++lait) {
1581                         Layout::latexarg arg = (*lait).second;
1582                         if (arg.autoinsert) {
1583                                 FuncRequest cmd(LFUN_ARGUMENT_INSERT, (*lait).first);
1584                                 lyx::dispatch(cmd);
1585                         }
1586                 }
1587
1588                 break;
1589         }
1590
1591         case LFUN_ENVIRONMENT_SPLIT: {
1592                 bool const outer = cmd.argument() == "outer";
1593                 bool const previous = cmd.argument() == "previous";
1594                 bool const before = cmd.argument() == "before";
1595                 bool const normal = cmd.argument().empty();
1596                 Paragraph const & para = cur.paragraph();
1597                 docstring layout;
1598                 if (para.layout().isEnvironment())
1599                         layout = para.layout().name();
1600                 depth_type split_depth = cur.paragraph().params().depth();
1601                 depth_type nextpar_depth = 0;
1602                 if (outer || previous) {
1603                         // check if we have an environment in our scope
1604                         pit_type pit = cur.pit();
1605                         Paragraph cpar = pars_[pit];
1606                         while (true) {
1607                                 if (pit == 0)
1608                                         break;
1609                                 --pit;
1610                                 cpar = pars_[pit];
1611                                 if (layout.empty() && previous
1612                                     && cpar.layout().isEnvironment()
1613                                     && cpar.params().depth() <= split_depth)
1614                                         layout = cpar.layout().name();
1615                                 if (cpar.params().depth() < split_depth
1616                                     && cpar.layout().isEnvironment()) {
1617                                                 if (!previous)
1618                                                         layout = cpar.layout().name();
1619                                                 split_depth = cpar.params().depth();
1620                                 }
1621                                 if (cpar.params().depth() == 0)
1622                                         break;
1623                         }
1624                 }
1625                 if ((outer || normal) && cur.pit() < cur.lastpit()) {
1626                         // save nesting of following paragraph
1627                         Paragraph cpar = pars_[cur.pit() + 1];
1628                         nextpar_depth = cpar.params().depth();
1629                 }
1630                 if (before)
1631                         cur.top().setPitPos(cur.pit(), 0);
1632                 if (before || cur.pos() > 0)
1633                         lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK));
1634                 else if (previous && cur.nextInset() && cur.nextInset()->lyxCode() == SEPARATOR_CODE)
1635                         lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse ignoresep"));
1636                 if (outer) {
1637                         while (cur.paragraph().params().depth() > split_depth)
1638                                 lyx::dispatch(FuncRequest(LFUN_DEPTH_DECREMENT));
1639                 }
1640                 DocumentClass const & tc = bv->buffer().params().documentClass();
1641                 lyx::dispatch(FuncRequest(LFUN_LAYOUT, from_ascii("\"") + tc.plainLayout().name()
1642                                           + from_ascii("\" ignoreautonests")));
1643                 lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "plain"));
1644                 if (before) {
1645                         cur.backwardPos();
1646                         lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse ignoresep"));
1647                         while (cur.paragraph().params().depth() < split_depth)
1648                                 lyx::dispatch(FuncRequest(LFUN_DEPTH_INCREMENT));
1649                 }
1650                 else
1651                         lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse"));
1652                 lyx::dispatch(FuncRequest(LFUN_LAYOUT, layout));
1653                 if ((outer || normal) && nextpar_depth > 0) {
1654                         // restore nesting of following paragraph
1655                         DocIterator scur = cur;
1656                         depth_type const max_depth = cur.paragraph().params().depth() + 1;
1657                         cur.forwardPar();
1658                         while (cur.paragraph().params().depth() < min(nextpar_depth, max_depth)) {
1659                                 depth_type const olddepth = cur.paragraph().params().depth();
1660                                 lyx::dispatch(FuncRequest(LFUN_DEPTH_INCREMENT));
1661                                 if (olddepth == cur.paragraph().params().depth())
1662                                         // leave loop if no incrementation happens
1663                                         break;
1664                         }
1665                         cur.setCursor(scur);
1666                 }
1667
1668                 break;
1669         }
1670
1671         case LFUN_CLIPBOARD_PASTE:
1672                 cap::replaceSelection(cur);
1673                 pasteClipboardText(cur, bv->buffer().errorList("Paste"),
1674                                cmd.argument() == "paragraph");
1675                 bv->buffer().errors("Paste");
1676                 break;
1677
1678         case LFUN_CLIPBOARD_PASTE_SIMPLE:
1679                 cap::replaceSelection(cur);
1680                 pasteSimpleText(cur, cmd.argument() == "paragraph");
1681                 break;
1682
1683         case LFUN_PRIMARY_SELECTION_PASTE:
1684                 cap::replaceSelection(cur);
1685                 pasteString(cur, theSelection().get(),
1686                             cmd.argument() == "paragraph");
1687                 break;
1688
1689         case LFUN_SELECTION_PASTE:
1690                 // Copy the selection buffer to the clipboard stack,
1691                 // because we want it to appear in the "Edit->Paste
1692                 // recent" menu.
1693                 cap::replaceSelection(cur);
1694                 cap::copySelectionToStack();
1695                 cap::pasteSelection(bv->cursor(), bv->buffer().errorList("Paste"));
1696                 bv->buffer().errors("Paste");
1697                 break;
1698
1699         case LFUN_QUOTE_INSERT: {
1700                 cap::replaceSelection(cur);
1701                 cur.recordUndo();
1702
1703                 Paragraph const & par = cur.paragraph();
1704                 pos_type pos = cur.pos();
1705                 // Ignore deleted text before cursor
1706                 while (pos > 0 && par.isDeleted(pos - 1))
1707                         --pos;
1708
1709                 bool const inner = (cmd.getArg(0) == "single" || cmd.getArg(0) == "inner");
1710
1711                 // Guess quote side.
1712                 // A space triggers an opening quote. This is passed if the preceding
1713                 // char/inset is a space or at paragraph start.
1714                 char_type c = ' ';
1715                 if (pos > 0 && !par.isSpace(pos - 1)) {
1716                         if (cur.prevInset() && cur.prevInset()->lyxCode() == QUOTE_CODE) {
1717                                 // If an opening double quotation mark precedes, and this
1718                                 // is a single quote, make it opening as well
1719                                 InsetQuotes & ins =
1720                                         static_cast<InsetQuotes &>(*cur.prevInset());
1721                                 string const type = ins.getType();
1722                                 if (!suffixIs(type, "ld") || !inner)
1723                                         c = par.getChar(pos - 1);
1724                         }
1725                         else if (!cur.prevInset()
1726                             || (cur.prevInset() && cur.prevInset()->isChar()))
1727                                 // If a char precedes, pass that and let InsetQuote decide
1728                                 c = par.getChar(pos - 1);
1729                         else {
1730                                 while (pos > 0) {
1731                                         if (par.getInset(pos - 1)
1732                                             && !par.getInset(pos - 1)->isPartOfTextSequence()) {
1733                                                 // skip "invisible" insets
1734                                                 --pos;
1735                                                 continue;
1736                                         }
1737                                         c = par.getChar(pos - 1);
1738                                         break;
1739                                 }
1740                         }
1741                 }
1742                 InsetQuotesParams::QuoteLevel const quote_level = inner
1743                                 ? InsetQuotesParams::SecondaryQuotes : InsetQuotesParams::PrimaryQuotes;
1744                 cur.insert(new InsetQuotes(cur.buffer(), c, quote_level, cmd.getArg(1), cmd.getArg(2)));
1745                 cur.buffer()->updateBuffer();
1746                 cur.posForward();
1747                 break;
1748         }
1749
1750         case LFUN_DATE_INSERT: {
1751                 string const format = cmd.argument().empty()
1752                         ? lyxrc.date_insert_format : to_utf8(cmd.argument());
1753                 string const time = formatted_time(current_time(), format);
1754                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, time));
1755                 break;
1756         }
1757
1758         case LFUN_MOUSE_TRIPLE:
1759                 if (cmd.button() == mouse_button::button1) {
1760                         tm->cursorHome(cur);
1761                         cur.resetAnchor();
1762                         tm->cursorEnd(cur);
1763                         cur.setSelection();
1764                         bv->cursor() = cur;
1765                 }
1766                 break;
1767
1768         case LFUN_MOUSE_DOUBLE:
1769                 if (cmd.button() == mouse_button::button1) {
1770                         selectWord(cur, WHOLE_WORD);
1771                         bv->cursor() = cur;
1772                 }
1773                 break;
1774
1775         // Single-click on work area
1776         case LFUN_MOUSE_PRESS: {
1777                 // We are not marking a selection with the keyboard in any case.
1778                 Cursor & bvcur = cur.bv().cursor();
1779                 bvcur.setMark(false);
1780                 switch (cmd.button()) {
1781                 case mouse_button::button1:
1782                         if (!bvcur.selection())
1783                                 // Set the cursor
1784                                 bvcur.resetAnchor();
1785                         if (!bv->mouseSetCursor(cur, cmd.modifier() == ShiftModifier))
1786                                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1787                         if (bvcur.wordSelection())
1788                                 selectWord(bvcur, WHOLE_WORD);
1789                         break;
1790
1791                 case mouse_button::button2:
1792                         if (lyxrc.mouse_middlebutton_paste) {
1793                                 // Middle mouse pasting.
1794                                 bv->mouseSetCursor(cur);
1795                                 lyx::dispatch(
1796                                         FuncRequest(LFUN_COMMAND_ALTERNATIVES,
1797                                                     "selection-paste ; primary-selection-paste paragraph"));
1798                         }
1799                         cur.noScreenUpdate();
1800                         break;
1801
1802                 case mouse_button::button3: {
1803                         // Don't do anything if we right-click a
1804                         // selection, a context menu will popup.
1805                         if (bvcur.selection() && cur >= bvcur.selectionBegin()
1806                             && cur < bvcur.selectionEnd()) {
1807                                 cur.noScreenUpdate();
1808                                 return;
1809                         }
1810                         if (!bv->mouseSetCursor(cur, false))
1811                                 cur.screenUpdateFlags(Update::FitCursor);
1812                         break;
1813                 }
1814
1815                 default:
1816                         break;
1817                 } // switch (cmd.button())
1818                 break;
1819         }
1820         case LFUN_MOUSE_MOTION: {
1821                 // Mouse motion with right or middle mouse do nothing for now.
1822                 if (cmd.button() != mouse_button::button1) {
1823                         cur.noScreenUpdate();
1824                         return;
1825                 }
1826                 // ignore motions deeper nested than the real anchor
1827                 Cursor & bvcur = cur.bv().cursor();
1828                 if (!bvcur.realAnchor().hasPart(cur)) {
1829                         cur.undispatched();
1830                         break;
1831                 }
1832                 CursorSlice old = bvcur.top();
1833
1834                 int const wh = bv->workHeight();
1835                 int const y = max(0, min(wh - 1, cmd.y()));
1836
1837                 tm->setCursorFromCoordinates(cur, cmd.x(), y);
1838                 cur.setTargetX(cmd.x());
1839                 // Don't allow selecting a separator inset
1840                 if (cur.pos() && cur.paragraph().isEnvSeparator(cur.pos() - 1))
1841                         cur.posBackward();
1842                 if (cmd.y() >= wh)
1843                         lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1844                 else if (cmd.y() < 0)
1845                         lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1846                 // This is to allow jumping over large insets
1847                 if (cur.top() == old) {
1848                         if (cmd.y() >= wh)
1849                                 lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1850                         else if (cmd.y() < 0)
1851                                 lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1852                 }
1853                 // We continue with our existing selection or start a new one, so don't
1854                 // reset the anchor.
1855                 bvcur.setCursor(cur);
1856                 bvcur.selection(true);
1857                 bvcur.setCurrentFont();
1858                 if (cur.top() == old) {
1859                         // We didn't move one iota, so no need to update the screen.
1860                         cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1861                         //cur.noScreenUpdate();
1862                         return;
1863                 }
1864                 break;
1865         }
1866
1867         case LFUN_MOUSE_RELEASE:
1868                 switch (cmd.button()) {
1869                 case mouse_button::button1:
1870                         // Cursor was set at LFUN_MOUSE_PRESS or LFUN_MOUSE_MOTION time.
1871                         // If there is a new selection, update persistent selection;
1872                         // otherwise, single click does not clear persistent selection
1873                         // buffer.
1874                         if (cur.selection()) {
1875                                 // Finish selection. If double click,
1876                                 // cur is moved to the end of word by
1877                                 // selectWord but bvcur is current
1878                                 // mouse position.
1879                                 cur.bv().cursor().setSelection();
1880                                 // We might have removed an empty but drawn selection
1881                                 // (probably a margin)
1882                                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1883                         } else
1884                                 cur.noScreenUpdate();
1885                         // FIXME: We could try to handle drag and drop of selection here.
1886                         return;
1887
1888                 case mouse_button::button2:
1889                         // Middle mouse pasting is handled at mouse press time,
1890                         // see LFUN_MOUSE_PRESS.
1891                         cur.noScreenUpdate();
1892                         return;
1893
1894                 case mouse_button::button3:
1895                         // Cursor was set at LFUN_MOUSE_PRESS time.
1896                         // FIXME: If there is a selection we could try to handle a special
1897                         // drag & drop context menu.
1898                         cur.noScreenUpdate();
1899                         return;
1900
1901                 case mouse_button::none:
1902                 case mouse_button::button4:
1903                 case mouse_button::button5:
1904                         break;
1905                 } // switch (cmd.button())
1906
1907                 break;
1908
1909         case LFUN_SELF_INSERT: {
1910                 if (cmd.argument().empty())
1911                         break;
1912
1913                 // Automatically delete the currently selected
1914                 // text and replace it with what is being
1915                 // typed in now. Depends on lyxrc settings
1916                 // "auto_region_delete", which defaults to
1917                 // true (on).
1918
1919                 if (lyxrc.auto_region_delete && cur.selection())
1920                         cutSelection(cur, false);
1921                 cur.clearSelection();
1922
1923                 for (char_type c : cmd.argument())
1924                         bv->translateAndInsert(c, this, cur);
1925
1926                 cur.resetAnchor();
1927                 moveCursor(cur, false);
1928                 cur.markNewWordPosition();
1929                 bv->bookmarkEditPosition();
1930                 break;
1931         }
1932
1933         case LFUN_HREF_INSERT: {
1934                 docstring content = cmd.argument();
1935                 if (content.empty() && cur.selection())
1936                         content = cur.selectionAsString(false);
1937
1938                 InsetCommandParams p(HYPERLINK_CODE);
1939                 if (!content.empty()){
1940                         // if it looks like a link, we'll put it as target,
1941                         // otherwise as name (bug #8792).
1942
1943                         // We can't do:
1944                         //   regex_match(to_utf8(content), matches, link_re)
1945                         // because smatch stores pointers to the substrings rather
1946                         // than making copies of them. And those pointers become
1947                         // invalid after regex_match returns, since it is then
1948                         // being given a temporary object. (Thanks to Georg for
1949                         // figuring that out.)
1950                         regex const link_re("^([a-z]+):.*");
1951                         smatch matches;
1952                         string const c = to_utf8(lowercase(content));
1953
1954                         if (c.substr(0,7) == "mailto:") {
1955                                 p["target"] = content;
1956                                 p["type"] = from_ascii("mailto:");
1957                         } else if (regex_match(c, matches, link_re)) {
1958                                 p["target"] = content;
1959                                 string protocol = matches.str(1);
1960                                 if (protocol == "file")
1961                                         p["type"] = from_ascii("file:");
1962                         } else
1963                                 p["name"] = content;
1964                 }
1965                 string const data = InsetCommand::params2string(p);
1966
1967                 // we need to have a target. if we already have one, then
1968                 // that gets used at the default for the name, too, which
1969                 // is probably what is wanted.
1970                 if (p["target"].empty()) {
1971                         bv->showDialog("href", data);
1972                 } else {
1973                         FuncRequest fr(LFUN_INSET_INSERT, data);
1974                         dispatch(cur, fr);
1975                 }
1976                 break;
1977         }
1978
1979         case LFUN_LABEL_INSERT: {
1980                 InsetCommandParams p(LABEL_CODE);
1981                 // Try to generate a valid label
1982                 p["name"] = (cmd.argument().empty()) ?
1983                         cur.getPossibleLabel() :
1984                         cmd.argument();
1985                 string const data = InsetCommand::params2string(p);
1986
1987                 if (cmd.argument().empty()) {
1988                         bv->showDialog("label", data);
1989                 } else {
1990                         FuncRequest fr(LFUN_INSET_INSERT, data);
1991                         dispatch(cur, fr);
1992                 }
1993                 break;
1994         }
1995
1996         case LFUN_INFO_INSERT: {
1997                 Inset * inset;
1998                 if (cmd.argument().empty() && cur.selection()) {
1999                         // if command argument is empty use current selection as parameter.
2000                         docstring ds = cur.selectionAsString(false);
2001                         cutSelection(cur, false);
2002                         FuncRequest cmd0(cmd, ds);
2003                         inset = createInset(cur.buffer(), cmd0);
2004                 } else {
2005                         inset = createInset(cur.buffer(), cmd);
2006                 }
2007                 if (!inset)
2008                         break;
2009                 cur.recordUndo();
2010                 insertInset(cur, inset);
2011                 cur.forceBufferUpdate();
2012                 cur.posForward();
2013                 break;
2014         }
2015         case LFUN_CAPTION_INSERT:
2016         case LFUN_FOOTNOTE_INSERT:
2017         case LFUN_NOTE_INSERT:
2018         case LFUN_BOX_INSERT:
2019         case LFUN_BRANCH_INSERT:
2020         case LFUN_PHANTOM_INSERT:
2021         case LFUN_ERT_INSERT:
2022         case LFUN_LISTING_INSERT:
2023         case LFUN_MARGINALNOTE_INSERT:
2024         case LFUN_ARGUMENT_INSERT:
2025         case LFUN_INDEX_INSERT:
2026         case LFUN_PREVIEW_INSERT:
2027         case LFUN_SCRIPT_INSERT:
2028         case LFUN_IPA_INSERT:
2029                 // Open the inset, and move the current selection
2030                 // inside it.
2031                 doInsertInset(cur, this, cmd, true, true);
2032                 cur.posForward();
2033                 // Some insets are numbered, others are shown in the outline pane so
2034                 // let's update the labels and the toc backend.
2035                 cur.forceBufferUpdate();
2036                 break;
2037
2038         case LFUN_FLEX_INSERT: {
2039                 // Open the inset, and move the current selection
2040                 // inside it.
2041                 bool const sel = cur.selection();
2042                 doInsertInset(cur, this, cmd, true, true);
2043                 // Insert auto-insert arguments
2044                 bool autoargs = false;
2045                 Layout::LaTeXArgMap args = cur.inset().getLayout().latexargs();
2046                 Layout::LaTeXArgMap::const_iterator lait = args.begin();
2047                 Layout::LaTeXArgMap::const_iterator const laend = args.end();
2048                 for (; lait != laend; ++lait) {
2049                         Layout::latexarg arg = (*lait).second;
2050                         if (arg.autoinsert) {
2051                                 // The cursor might have been invalidated by the replaceSelection.
2052                                 cur.buffer()->changed(true);
2053                                 FuncRequest cmd(LFUN_ARGUMENT_INSERT, (*lait).first);
2054                                 lyx::dispatch(cmd);
2055                                 autoargs = true;
2056                         }
2057                 }
2058                 if (!autoargs) {
2059                         if (sel)
2060                                 cur.leaveInset(cur.inset());
2061                         cur.posForward();
2062                 }
2063                 // Some insets are numbered, others are shown in the outline pane so
2064                 // let's update the labels and the toc backend.
2065                 cur.forceBufferUpdate();
2066                 break;
2067         }
2068
2069         case LFUN_TABULAR_INSERT:
2070                 // if there were no arguments, just open the dialog
2071                 if (doInsertInset(cur, this, cmd, false, true))
2072                         cur.posForward();
2073                 else
2074                         bv->showDialog("tabularcreate");
2075
2076                 break;
2077
2078         case LFUN_FLOAT_INSERT:
2079         case LFUN_FLOAT_WIDE_INSERT:
2080         case LFUN_WRAP_INSERT: {
2081                 // will some content be moved into the inset?
2082                 bool const content = cur.selection();
2083                 // does the content consist of multiple paragraphs?
2084                 bool const singlepar = (cur.selBegin().pit() == cur.selEnd().pit());
2085
2086                 doInsertInset(cur, this, cmd, true, true);
2087                 cur.posForward();
2088
2089                 // If some single-par content is moved into the inset,
2090                 // doInsertInset puts the cursor outside the inset.
2091                 // To insert the caption we put it back into the inset.
2092                 // FIXME cleanup doInsertInset to avoid such dances!
2093                 if (content && singlepar)
2094                         cur.backwardPos();
2095
2096                 ParagraphList & pars = cur.text()->paragraphs();
2097
2098                 DocumentClass const & tclass = bv->buffer().params().documentClass();
2099
2100                 // add a separate paragraph for the caption inset
2101                 pars.push_back(Paragraph());
2102                 pars.back().setInsetOwner(&cur.text()->inset());
2103                 pars.back().setPlainOrDefaultLayout(tclass);
2104                 int cap_pit = pars.size() - 1;
2105
2106                 // if an empty inset was created, we create an additional empty
2107                 // paragraph at the bottom so that the user can choose where to put
2108                 // the graphics (or table).
2109                 if (!content) {
2110                         pars.push_back(Paragraph());
2111                         pars.back().setInsetOwner(&cur.text()->inset());
2112                         pars.back().setPlainOrDefaultLayout(tclass);
2113                 }
2114
2115                 // reposition the cursor to the caption
2116                 cur.pit() = cap_pit;
2117                 cur.pos() = 0;
2118                 // FIXME: This Text/Cursor dispatch handling is a mess!
2119                 // We cannot use Cursor::dispatch here it needs access to up to
2120                 // date metrics.
2121                 FuncRequest cmd_caption(LFUN_CAPTION_INSERT);
2122                 doInsertInset(cur, cur.text(), cmd_caption, true, false);
2123                 cur.forceBufferUpdate();
2124                 cur.screenUpdateFlags(Update::Force);
2125                 // FIXME: When leaving the Float (or Wrap) inset we should
2126                 // delete any empty paragraph left above or below the
2127                 // caption.
2128                 break;
2129         }
2130
2131         case LFUN_NOMENCL_INSERT: {
2132                 InsetCommandParams p(NOMENCL_CODE);
2133                 if (cmd.argument().empty())
2134                         p["symbol"] = bv->cursor().innerText()->getStringToIndex(bv->cursor());
2135                 else
2136                         p["symbol"] = cmd.argument();
2137                 string const data = InsetCommand::params2string(p);
2138                 bv->showDialog("nomenclature", data);
2139                 break;
2140         }
2141
2142         case LFUN_INDEX_PRINT: {
2143                 InsetCommandParams p(INDEX_PRINT_CODE);
2144                 if (cmd.argument().empty())
2145                         p["type"] = from_ascii("idx");
2146                 else
2147                         p["type"] = cmd.argument();
2148                 string const data = InsetCommand::params2string(p);
2149                 FuncRequest fr(LFUN_INSET_INSERT, data);
2150                 dispatch(cur, fr);
2151                 break;
2152         }
2153
2154         case LFUN_NOMENCL_PRINT:
2155         case LFUN_NEWPAGE_INSERT:
2156                 // do nothing fancy
2157                 doInsertInset(cur, this, cmd, false, false);
2158                 cur.posForward();
2159                 break;
2160
2161         case LFUN_SEPARATOR_INSERT: {
2162                 doInsertInset(cur, this, cmd, false, false);
2163                 cur.posForward();
2164                 // remove a following space
2165                 Paragraph & par = cur.paragraph();
2166                 if (cur.pos() != cur.lastpos() && par.isLineSeparator(cur.pos()))
2167                     par.eraseChar(cur.pos(), cur.buffer()->params().track_changes);
2168                 break;
2169         }
2170
2171         case LFUN_DEPTH_DECREMENT:
2172                 changeDepth(cur, DEC_DEPTH);
2173                 break;
2174
2175         case LFUN_DEPTH_INCREMENT:
2176                 changeDepth(cur, INC_DEPTH);
2177                 break;
2178
2179         case LFUN_REGEXP_MODE:
2180                 regexpDispatch(cur, cmd);
2181                 break;
2182
2183         case LFUN_MATH_MODE: {
2184                 if (cmd.argument() == "on" || cmd.argument() == "") {
2185                         // don't pass "on" as argument
2186                         // (it would appear literally in the first cell)
2187                         docstring sel = cur.selectionAsString(false);
2188                         InsetMathMacroTemplate * macro = new InsetMathMacroTemplate(cur.buffer());
2189                         // create a macro template if we see "\\newcommand" somewhere, and
2190                         // an ordinary formula otherwise
2191                         if (!sel.empty()
2192                                 && (sel.find(from_ascii("\\newcommand")) != string::npos
2193                                         || sel.find(from_ascii("\\newlyxcommand")) != string::npos
2194                                         || sel.find(from_ascii("\\def")) != string::npos)
2195                                 && macro->fromString(sel)) {
2196                                 cur.recordUndo();
2197                                 replaceSelection(cur);
2198                                 cur.insert(macro);
2199                         } else {
2200                                 // no meaningful macro template was found
2201                                 delete macro;
2202                                 mathDispatch(cur,FuncRequest(LFUN_MATH_MODE));
2203                         }
2204                 } else
2205                         // The argument is meaningful
2206                         // We replace cmd with LFUN_MATH_INSERT because LFUN_MATH_MODE
2207                         // has a different meaning in math mode
2208                         mathDispatch(cur, FuncRequest(LFUN_MATH_INSERT,cmd.argument()));
2209                 break;
2210         }
2211
2212         case LFUN_MATH_MACRO:
2213                 if (cmd.argument().empty())
2214                         cur.errorMessage(from_utf8(N_("Missing argument")));
2215                 else {
2216                         cur.recordUndo();
2217                         string s = to_utf8(cmd.argument());
2218                         string const s1 = token(s, ' ', 1);
2219                         int const nargs = s1.empty() ? 0 : convert<int>(s1);
2220                         string const s2 = token(s, ' ', 2);
2221                         MacroType type = MacroTypeNewcommand;
2222                         if (s2 == "def")
2223                                 type = MacroTypeDef;
2224                         InsetMathMacroTemplate * inset = new InsetMathMacroTemplate(cur.buffer(),
2225                                 from_utf8(token(s, ' ', 0)), nargs, false, type);
2226                         inset->setBuffer(bv->buffer());
2227                         insertInset(cur, inset);
2228
2229                         // enter macro inset and select the name
2230                         cur.push(*inset);
2231                         cur.top().pos() = cur.top().lastpos();
2232                         cur.resetAnchor();
2233                         cur.selection(true);
2234                         cur.top().pos() = 0;
2235                 }
2236                 break;
2237
2238         case LFUN_MATH_DISPLAY:
2239         case LFUN_MATH_SUBSCRIPT:
2240         case LFUN_MATH_SUPERSCRIPT:
2241         case LFUN_MATH_INSERT:
2242         case LFUN_MATH_AMS_MATRIX:
2243         case LFUN_MATH_MATRIX:
2244         case LFUN_MATH_DELIM:
2245         case LFUN_MATH_BIGDELIM:
2246                 mathDispatch(cur, cmd);
2247                 break;
2248
2249         case LFUN_FONT_EMPH: {
2250                 Font font(ignore_font, ignore_language);
2251                 font.fontInfo().setEmph(FONT_TOGGLE);
2252                 toggleAndShow(cur, this, font);
2253                 break;
2254         }
2255
2256         case LFUN_FONT_ITAL: {
2257                 Font font(ignore_font, ignore_language);
2258                 font.fontInfo().setShape(ITALIC_SHAPE);
2259                 toggleAndShow(cur, this, font);
2260                 break;
2261         }
2262
2263         case LFUN_FONT_BOLD:
2264         case LFUN_FONT_BOLDSYMBOL: {
2265                 Font font(ignore_font, ignore_language);
2266                 font.fontInfo().setSeries(BOLD_SERIES);
2267                 toggleAndShow(cur, this, font);
2268                 break;
2269         }
2270
2271         case LFUN_FONT_NOUN: {
2272                 Font font(ignore_font, ignore_language);
2273                 font.fontInfo().setNoun(FONT_TOGGLE);
2274                 toggleAndShow(cur, this, font);
2275                 break;
2276         }
2277
2278         case LFUN_FONT_TYPEWRITER: {
2279                 Font font(ignore_font, ignore_language);
2280                 font.fontInfo().setFamily(TYPEWRITER_FAMILY); // no good
2281                 toggleAndShow(cur, this, font);
2282                 break;
2283         }
2284
2285         case LFUN_FONT_SANS: {
2286                 Font font(ignore_font, ignore_language);
2287                 font.fontInfo().setFamily(SANS_FAMILY);
2288                 toggleAndShow(cur, this, font);
2289                 break;
2290         }
2291
2292         case LFUN_FONT_ROMAN: {
2293                 Font font(ignore_font, ignore_language);
2294                 font.fontInfo().setFamily(ROMAN_FAMILY);
2295                 toggleAndShow(cur, this, font);
2296                 break;
2297         }
2298
2299         case LFUN_FONT_DEFAULT: {
2300                 Font font(inherit_font, ignore_language);
2301                 toggleAndShow(cur, this, font);
2302                 break;
2303         }
2304
2305         case LFUN_FONT_STRIKEOUT: {
2306                 Font font(ignore_font, ignore_language);
2307                 font.fontInfo().setStrikeout(FONT_TOGGLE);
2308                 toggleAndShow(cur, this, font);
2309                 break;
2310         }
2311
2312         case LFUN_FONT_CROSSOUT: {
2313                 Font font(ignore_font, ignore_language);
2314                 font.fontInfo().setXout(FONT_TOGGLE);
2315                 toggleAndShow(cur, this, font);
2316                 break;
2317         }
2318
2319         case LFUN_FONT_UNDERUNDERLINE: {
2320                 Font font(ignore_font, ignore_language);
2321                 font.fontInfo().setUuline(FONT_TOGGLE);
2322                 toggleAndShow(cur, this, font);
2323                 break;
2324         }
2325
2326         case LFUN_FONT_UNDERWAVE: {
2327                 Font font(ignore_font, ignore_language);
2328                 font.fontInfo().setUwave(FONT_TOGGLE);
2329                 toggleAndShow(cur, this, font);
2330                 break;
2331         }
2332
2333         case LFUN_FONT_UNDERLINE: {
2334                 Font font(ignore_font, ignore_language);
2335                 font.fontInfo().setUnderbar(FONT_TOGGLE);
2336                 toggleAndShow(cur, this, font);
2337                 break;
2338         }
2339
2340         case LFUN_FONT_SIZE: {
2341                 Font font(ignore_font, ignore_language);
2342                 setLyXSize(to_utf8(cmd.argument()), font.fontInfo());
2343                 toggleAndShow(cur, this, font);
2344                 break;
2345         }
2346
2347         case LFUN_LANGUAGE: {
2348                 string const lang_arg = cmd.getArg(0);
2349                 bool const reset = (lang_arg.empty() || lang_arg == "reset");
2350                 Language const * lang =
2351                         reset ? reset_language
2352                               : languages.getLanguage(lang_arg);
2353                 // we allow reset_language, which is 0, but only if it
2354                 // was requested via empty or "reset" arg.
2355                 if (!lang && !reset)
2356                         break;
2357                 bool const toggle = (cmd.getArg(1) != "set");
2358                 selectWordWhenUnderCursor(cur, WHOLE_WORD_STRICT);
2359                 Font font(ignore_font, lang);
2360                 toggleAndShow(cur, this, font, toggle);
2361                 break;
2362         }
2363
2364         case LFUN_TEXTSTYLE_APPLY:
2365                 toggleAndShow(cur, this, freefont, toggleall);
2366                 cur.message(_("Character set"));
2367                 break;
2368
2369         // Set the freefont using the contents of \param data dispatched from
2370         // the frontends and apply it at the current cursor location.
2371         case LFUN_TEXTSTYLE_UPDATE: {
2372                 Font font(ignore_font, ignore_language);
2373                 bool toggle;
2374                 if (font.fromString(to_utf8(cmd.argument()), toggle)) {
2375                         freefont = font;
2376                         toggleall = toggle;
2377                         toggleAndShow(cur, this, freefont, toggleall);
2378                         cur.message(_("Character set"));
2379                 } else {
2380                         lyxerr << "Argument not ok";
2381                 }
2382                 break;
2383         }
2384
2385         case LFUN_FINISHED_LEFT:
2386                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_LEFT:\n" << cur);
2387                 // We're leaving an inset, going left. If the inset is LTR, we're
2388                 // leaving from the front, so we should not move (remain at --- but
2389                 // not in --- the inset). If the inset is RTL, move left, without
2390                 // entering the inset itself; i.e., move to after the inset.
2391                 if (cur.paragraph().getFontSettings(
2392                                 cur.bv().buffer().params(), cur.pos()).isRightToLeft())
2393                         cursorVisLeft(cur, true);
2394                 break;
2395
2396         case LFUN_FINISHED_RIGHT:
2397                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_RIGHT:\n" << cur);
2398                 // We're leaving an inset, going right. If the inset is RTL, we're
2399                 // leaving from the front, so we should not move (remain at --- but
2400                 // not in --- the inset). If the inset is LTR, move right, without
2401                 // entering the inset itself; i.e., move to after the inset.
2402                 if (!cur.paragraph().getFontSettings(
2403                                 cur.bv().buffer().params(), cur.pos()).isRightToLeft())
2404                         cursorVisRight(cur, true);
2405                 break;
2406
2407         case LFUN_FINISHED_BACKWARD:
2408                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_BACKWARD:\n" << cur);
2409                 cur.setCurrentFont();
2410                 break;
2411
2412         case LFUN_FINISHED_FORWARD:
2413                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_FORWARD:\n" << cur);
2414                 ++cur.pos();
2415                 cur.setCurrentFont();
2416                 break;
2417
2418         case LFUN_LAYOUT_PARAGRAPH: {
2419                 string data;
2420                 params2string(cur.paragraph(), data);
2421                 data = "show\n" + data;
2422                 bv->showDialog("paragraph", data);
2423                 break;
2424         }
2425
2426         case LFUN_PARAGRAPH_UPDATE: {
2427                 string data;
2428                 params2string(cur.paragraph(), data);
2429
2430                 // Will the paragraph accept changes from the dialog?
2431                 bool const accept =
2432                         cur.inset().allowParagraphCustomization(cur.idx());
2433
2434                 data = "update " + convert<string>(accept) + '\n' + data;
2435                 bv->updateDialog("paragraph", data);
2436                 break;
2437         }
2438
2439         case LFUN_ACCENT_UMLAUT:
2440         case LFUN_ACCENT_CIRCUMFLEX:
2441         case LFUN_ACCENT_GRAVE:
2442         case LFUN_ACCENT_ACUTE:
2443         case LFUN_ACCENT_TILDE:
2444         case LFUN_ACCENT_PERISPOMENI:
2445         case LFUN_ACCENT_CEDILLA:
2446         case LFUN_ACCENT_MACRON:
2447         case LFUN_ACCENT_DOT:
2448         case LFUN_ACCENT_UNDERDOT:
2449         case LFUN_ACCENT_UNDERBAR:
2450         case LFUN_ACCENT_CARON:
2451         case LFUN_ACCENT_BREVE:
2452         case LFUN_ACCENT_TIE:
2453         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
2454         case LFUN_ACCENT_CIRCLE:
2455         case LFUN_ACCENT_OGONEK:
2456                 theApp()->handleKeyFunc(cmd.action());
2457                 if (!cmd.argument().empty())
2458                         // FIXME: Are all these characters encoded in one byte in utf8?
2459                         bv->translateAndInsert(cmd.argument()[0], this, cur);
2460                 cur.screenUpdateFlags(Update::FitCursor);
2461                 break;
2462
2463         case LFUN_FLOAT_LIST_INSERT: {
2464                 DocumentClass const & tclass = bv->buffer().params().documentClass();
2465                 if (tclass.floats().typeExist(to_utf8(cmd.argument()))) {
2466                         cur.recordUndo();
2467                         if (cur.selection())
2468                                 cutSelection(cur, false);
2469                         breakParagraph(cur);
2470
2471                         if (cur.lastpos() != 0) {
2472                                 cursorBackward(cur);
2473                                 breakParagraph(cur);
2474                         }
2475
2476                         docstring const laystr = cur.inset().usePlainLayout() ?
2477                                 tclass.plainLayoutName() :
2478                                 tclass.defaultLayoutName();
2479                         setLayout(cur, laystr);
2480                         ParagraphParameters p;
2481                         // FIXME If this call were replaced with one to clearParagraphParams(),
2482                         // then we could get rid of this method altogether.
2483                         setParagraphs(cur, p);
2484                         // FIXME This should be simplified when InsetFloatList takes a
2485                         // Buffer in its constructor.
2486                         InsetFloatList * ifl = new InsetFloatList(cur.buffer(), to_utf8(cmd.argument()));
2487                         ifl->setBuffer(bv->buffer());
2488                         insertInset(cur, ifl);
2489                         cur.posForward();
2490                 } else {
2491                         lyxerr << "Non-existent float type: "
2492                                << to_utf8(cmd.argument()) << endl;
2493                 }
2494                 break;
2495         }
2496
2497         case LFUN_CHANGE_ACCEPT: {
2498                 acceptOrRejectChanges(cur, ACCEPT);
2499                 break;
2500         }
2501
2502         case LFUN_CHANGE_REJECT: {
2503                 acceptOrRejectChanges(cur, REJECT);
2504                 break;
2505         }
2506
2507         case LFUN_THESAURUS_ENTRY: {
2508                 Language const * language = cur.getFont().language();
2509                 docstring arg = cmd.argument();
2510                 if (arg.empty()) {
2511                         arg = cur.selectionAsString(false);
2512                         // FIXME
2513                         if (arg.size() > 100 || arg.empty()) {
2514                                 // Get word or selection
2515                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2516                                 arg = cur.selectionAsString(false);
2517                                 arg += " lang=" + from_ascii(language->lang());
2518                         }
2519                 } else {
2520                         string lang = cmd.getArg(1);
2521                         // This duplicates the code in GuiThesaurus::initialiseParams
2522                         if (prefixIs(lang, "lang=")) {
2523                                 language = languages.getLanguage(lang.substr(5));
2524                                 if (!language)
2525                                         language = cur.getFont().language();
2526                         }
2527                 }
2528                 string lang = language->code();
2529                 if (lyxrc.thesaurusdir_path.empty() && !thesaurus.thesaurusInstalled(from_ascii(lang))) {
2530                         LYXERR(Debug::ACTION, "Command " << cmd << ". Thesaurus not found for language " << lang);
2531                         frontend::Alert::warning(_("Path to thesaurus directory not set!"),
2532                                         _("The path to the thesaurus directory has not been specified.\n"
2533                                           "The thesaurus is not functional.\n"
2534                                           "Please refer to sec. 6.15.1 of the User's Guide for setup\n"
2535                                           "instructions."));
2536                 }
2537                 bv->showDialog("thesaurus", to_utf8(arg));
2538                 break;
2539         }
2540
2541         case LFUN_SPELLING_ADD: {
2542                 Language const * language = getLanguage(cur, cmd.getArg(1));
2543                 docstring word = from_utf8(cmd.getArg(0));
2544                 if (word.empty()) {
2545                         word = cur.selectionAsString(false);
2546                         // FIXME
2547                         if (word.size() > 100 || word.empty()) {
2548                                 // Get word or selection
2549                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2550                                 word = cur.selectionAsString(false);
2551                         }
2552                 }
2553                 WordLangTuple wl(word, language);
2554                 theSpellChecker()->insert(wl);
2555                 break;
2556         }
2557
2558         case LFUN_SPELLING_IGNORE: {
2559                 Language const * language = getLanguage(cur, cmd.getArg(1));
2560                 docstring word = from_utf8(cmd.getArg(0));
2561                 if (word.empty()) {
2562                         word = cur.selectionAsString(false);
2563                         // FIXME
2564                         if (word.size() > 100 || word.empty()) {
2565                                 // Get word or selection
2566                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2567                                 word = cur.selectionAsString(false);
2568                         }
2569                 }
2570                 WordLangTuple wl(word, language);
2571                 theSpellChecker()->accept(wl);
2572                 break;
2573         }
2574
2575         case LFUN_SPELLING_REMOVE: {
2576                 Language const * language = getLanguage(cur, cmd.getArg(1));
2577                 docstring word = from_utf8(cmd.getArg(0));
2578                 if (word.empty()) {
2579                         word = cur.selectionAsString(false);
2580                         // FIXME
2581                         if (word.size() > 100 || word.empty()) {
2582                                 // Get word or selection
2583                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2584                                 word = cur.selectionAsString(false);
2585                         }
2586                 }
2587                 WordLangTuple wl(word, language);
2588                 theSpellChecker()->remove(wl);
2589                 break;
2590         }
2591
2592         case LFUN_PARAGRAPH_PARAMS_APPLY: {
2593                 // Given data, an encoding of the ParagraphParameters
2594                 // generated in the Paragraph dialog, this function sets
2595                 // the current paragraph, or currently selected paragraphs,
2596                 // appropriately.
2597                 // NOTE: This function overrides all existing settings.
2598                 setParagraphs(cur, cmd.argument());
2599                 cur.message(_("Paragraph layout set"));
2600                 break;
2601         }
2602
2603         case LFUN_PARAGRAPH_PARAMS: {
2604                 // Given data, an encoding of the ParagraphParameters as we'd
2605                 // find them in a LyX file, this function modifies the current paragraph,
2606                 // or currently selected paragraphs.
2607                 // NOTE: This function only modifies, and does not override, existing
2608                 // settings.
2609                 setParagraphs(cur, cmd.argument(), true);
2610                 cur.message(_("Paragraph layout set"));
2611                 break;
2612         }
2613
2614         case LFUN_ESCAPE:
2615                 if (cur.selection()) {
2616                         cur.selection(false);
2617                 } else {
2618                         cur.undispatched();
2619                         // This used to be LFUN_FINISHED_RIGHT, I think FORWARD is more
2620                         // correct, but I'm not 100% sure -- dov, 071019
2621                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
2622                 }
2623                 break;
2624
2625         case LFUN_OUTLINE_UP:
2626                 outline(OutlineUp, cur, this);
2627                 setCursor(cur, cur.pit(), 0);
2628                 cur.forceBufferUpdate();
2629                 needsUpdate = true;
2630                 break;
2631
2632         case LFUN_OUTLINE_DOWN:
2633                 outline(OutlineDown, cur, this);
2634                 setCursor(cur, cur.pit(), 0);
2635                 cur.forceBufferUpdate();
2636                 needsUpdate = true;
2637                 break;
2638
2639         case LFUN_OUTLINE_IN:
2640                 outline(OutlineIn, cur, this);
2641                 cur.forceBufferUpdate();
2642                 needsUpdate = true;
2643                 break;
2644
2645         case LFUN_OUTLINE_OUT:
2646                 outline(OutlineOut, cur, this);
2647                 cur.forceBufferUpdate();
2648                 needsUpdate = true;
2649                 break;
2650
2651         case LFUN_SERVER_GET_STATISTICS:
2652                 {
2653                         DocIterator from, to;
2654                         if (cur.selection()) {
2655                                 from = cur.selectionBegin();
2656                                 to = cur.selectionEnd();
2657                         } else {
2658                                 from = doc_iterator_begin(cur.buffer());
2659                                 to = doc_iterator_end(cur.buffer());
2660                         }
2661
2662                         cur.buffer()->updateStatistics(from, to);
2663                         string const arg0 = cmd.getArg(0);
2664                         if (arg0 == "words") {
2665                                 cur.message(convert<docstring>(cur.buffer()->wordCount()));
2666                         } else if (arg0 == "chars") {
2667                                 cur.message(convert<docstring>(cur.buffer()->charCount(false)));
2668                         } else if (arg0 == "chars-space") {
2669                                 cur.message(convert<docstring>(cur.buffer()->charCount(true)));
2670                         } else {
2671                                 cur.message(convert<docstring>(cur.buffer()->wordCount()) + " "
2672                                 + convert<docstring>(cur.buffer()->charCount(false)) + " "
2673                                 + convert<docstring>(cur.buffer()->charCount(true)));
2674                         }
2675                 }
2676                 break;
2677
2678         default:
2679                 LYXERR(Debug::ACTION, "Command " << cmd << " not DISPATCHED by Text");
2680                 cur.undispatched();
2681                 break;
2682         }
2683
2684         needsUpdate |= (cur.pos() != cur.lastpos()) && cur.selection();
2685
2686         if (lyxrc.spellcheck_continuously && !needsUpdate) {
2687                 // Check for misspelled text
2688                 // The redraw is useful because of the painting of
2689                 // misspelled markers depends on the cursor position.
2690                 // Trigger a redraw for cursor moves inside misspelled text.
2691                 if (!cur.inTexted()) {
2692                         // move from regular text to math
2693                         needsUpdate = last_misspelled;
2694                 } else if (oldTopSlice != cur.top() || oldBoundary != cur.boundary()) {
2695                         // move inside regular text
2696                         needsUpdate = last_misspelled
2697                                 || cur.paragraph().isMisspelled(cur.pos(), true);
2698                 }
2699         }
2700
2701         // FIXME: The cursor flag is reset two lines below
2702         // so we need to check here if some of the LFUN did touch that.
2703         // for now only Text::erase() and Text::backspace() do that.
2704         // The plan is to verify all the LFUNs and then to remove this
2705         // singleParUpdate boolean altogether.
2706         if (cur.result().screenUpdate() & Update::Force) {
2707                 singleParUpdate = false;
2708                 needsUpdate = true;
2709         }
2710
2711         // FIXME: the following code should go in favor of fine grained
2712         // update flag treatment.
2713         if (singleParUpdate) {
2714                 // Inserting characters does not change par height in general. So, try
2715                 // to update _only_ this paragraph. BufferView will detect if a full
2716                 // metrics update is needed anyway.
2717                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
2718                 return;
2719         }
2720         if (!needsUpdate
2721             && &oldTopSlice.inset() == &cur.inset()
2722             && oldTopSlice.idx() == cur.idx()
2723             && !oldSelection // oldSelection is a backup of cur.selection() at the beginning of the function.
2724             && !cur.selection())
2725                 // FIXME: it would be better if we could just do this
2726                 //
2727                 //if (cur.result().update() != Update::FitCursor)
2728                 //      cur.noScreenUpdate();
2729                 //
2730                 // But some LFUNs do not set Update::FitCursor when needed, so we
2731                 // do it for all. This is not very harmfull as FitCursor will provoke
2732                 // a full redraw only if needed but still, a proper review of all LFUN
2733                 // should be done and this needsUpdate boolean can then be removed.
2734                 cur.screenUpdateFlags(Update::FitCursor);
2735         else
2736                 cur.screenUpdateFlags(Update::Force | Update::FitCursor);
2737 }
2738
2739
2740 bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
2741                         FuncStatus & flag) const
2742 {
2743         LBUFERR(this == cur.text());
2744
2745         FontInfo const & fontinfo = cur.real_current_font.fontInfo();
2746         bool enable = true;
2747         bool allow_in_passthru = false;
2748         InsetCode code = NO_CODE;
2749
2750         switch (cmd.action()) {
2751
2752         case LFUN_DEPTH_DECREMENT:
2753                 enable = changeDepthAllowed(cur, DEC_DEPTH);
2754                 break;
2755
2756         case LFUN_DEPTH_INCREMENT:
2757                 enable = changeDepthAllowed(cur, INC_DEPTH);
2758                 break;
2759
2760         case LFUN_APPENDIX:
2761                 // FIXME We really should not allow this to be put, e.g.,
2762                 // in a footnote, or in ERT. But it would make sense in a
2763                 // branch, so I'm not sure what to do.
2764                 flag.setOnOff(cur.paragraph().params().startOfAppendix());
2765                 break;
2766
2767         case LFUN_DIALOG_SHOW_NEW_INSET:
2768                 if (cmd.argument() == "bibitem")
2769                         code = BIBITEM_CODE;
2770                 else if (cmd.argument() == "bibtex") {
2771                         code = BIBTEX_CODE;
2772                         // not allowed in description items
2773                         enable = !inDescriptionItem(cur);
2774                 }
2775                 else if (cmd.argument() == "box")
2776                         code = BOX_CODE;
2777                 else if (cmd.argument() == "branch")
2778                         code = BRANCH_CODE;
2779                 else if (cmd.argument() == "citation")
2780                         code = CITE_CODE;
2781                 else if (cmd.argument() == "ert")
2782                         code = ERT_CODE;
2783                 else if (cmd.argument() == "external")
2784                         code = EXTERNAL_CODE;
2785                 else if (cmd.argument() == "float")
2786                         code = FLOAT_CODE;
2787                 else if (cmd.argument() == "graphics")
2788                         code = GRAPHICS_CODE;
2789                 else if (cmd.argument() == "href")
2790                         code = HYPERLINK_CODE;
2791                 else if (cmd.argument() == "include")
2792                         code = INCLUDE_CODE;
2793                 else if (cmd.argument() == "index")
2794                         code = INDEX_CODE;
2795                 else if (cmd.argument() == "index_print")
2796                         code = INDEX_PRINT_CODE;
2797                 else if (cmd.argument() == "listings")
2798                         code = LISTINGS_CODE;
2799                 else if (cmd.argument() == "mathspace")
2800                         code = MATH_HULL_CODE;
2801                 else if (cmd.argument() == "nomenclature")
2802                         code = NOMENCL_CODE;
2803                 else if (cmd.argument() == "nomencl_print")
2804                         code = NOMENCL_PRINT_CODE;
2805                 else if (cmd.argument() == "label")
2806                         code = LABEL_CODE;
2807                 else if (cmd.argument() == "line")
2808                         code = LINE_CODE;
2809                 else if (cmd.argument() == "note")
2810                         code = NOTE_CODE;
2811                 else if (cmd.argument() == "phantom")
2812                         code = PHANTOM_CODE;
2813                 else if (cmd.argument() == "ref")
2814                         code = REF_CODE;
2815                 else if (cmd.argument() == "space")
2816                         code = SPACE_CODE;
2817                 else if (cmd.argument() == "toc")
2818                         code = TOC_CODE;
2819                 else if (cmd.argument() == "vspace")
2820                         code = VSPACE_CODE;
2821                 else if (cmd.argument() == "wrap")
2822                         code = WRAP_CODE;
2823                 break;
2824
2825         case LFUN_ERT_INSERT:
2826                 code = ERT_CODE;
2827                 break;
2828         case LFUN_LISTING_INSERT:
2829                 code = LISTINGS_CODE;
2830                 // not allowed in description items
2831                 enable = !inDescriptionItem(cur);
2832                 break;
2833         case LFUN_FOOTNOTE_INSERT:
2834                 code = FOOT_CODE;
2835                 break;
2836         case LFUN_TABULAR_INSERT:
2837                 code = TABULAR_CODE;
2838                 break;
2839         case LFUN_MARGINALNOTE_INSERT:
2840                 code = MARGIN_CODE;
2841                 break;
2842         case LFUN_FLOAT_INSERT:
2843         case LFUN_FLOAT_WIDE_INSERT:
2844                 // FIXME: If there is a selection, we should check whether there
2845                 // are floats in the selection, but this has performance issues, see
2846                 // LFUN_CHANGE_ACCEPT/REJECT.
2847                 code = FLOAT_CODE;
2848                 if (inDescriptionItem(cur))
2849                         // not allowed in description items
2850                         enable = false;
2851                 else {
2852                         InsetCode const inset_code = cur.inset().lyxCode();
2853
2854                         // algorithm floats cannot be put in another float
2855                         if (to_utf8(cmd.argument()) == "algorithm") {
2856                                 enable = inset_code != WRAP_CODE && inset_code != FLOAT_CODE;
2857                                 break;
2858                         }
2859
2860                         // for figures and tables: only allow in another
2861                         // float or wrap if it is of the same type and
2862                         // not a subfloat already
2863                         if(cur.inset().lyxCode() == code) {
2864                                 InsetFloat const & ins =
2865                                         static_cast<InsetFloat const &>(cur.inset());
2866                                 enable = ins.params().type == to_utf8(cmd.argument())
2867                                         && !ins.params().subfloat;
2868                         } else if(cur.inset().lyxCode() == WRAP_CODE) {
2869                                 InsetWrap const & ins =
2870                                         static_cast<InsetWrap const &>(cur.inset());
2871                                 enable = ins.params().type == to_utf8(cmd.argument());
2872                         }
2873                 }
2874                 break;
2875         case LFUN_WRAP_INSERT:
2876                 code = WRAP_CODE;
2877                 // not allowed in description items
2878                 enable = !inDescriptionItem(cur);
2879                 break;
2880         case LFUN_FLOAT_LIST_INSERT: {
2881                 code = FLOAT_LIST_CODE;
2882                 // not allowed in description items
2883                 enable = !inDescriptionItem(cur);
2884                 if (enable) {
2885                         FloatList const & floats = cur.buffer()->params().documentClass().floats();
2886                         FloatList::const_iterator cit = floats[to_ascii(cmd.argument())];
2887                         // make sure we know about such floats
2888                         if (cit == floats.end() ||
2889                                         // and that we know how to generate a list of them
2890                             (!cit->second.usesFloatPkg() && cit->second.listCommand().empty())) {
2891                                 flag.setUnknown(true);
2892                                 // probably not necessary, but...
2893                                 enable = false;
2894                         }
2895                 }
2896                 break;
2897         }
2898         case LFUN_CAPTION_INSERT: {
2899                 code = CAPTION_CODE;
2900                 string arg = cmd.getArg(0);
2901                 bool varia = arg != "Unnumbered"
2902                         && cur.inset().allowsCaptionVariation(arg);
2903                 // not allowed in description items,
2904                 // and in specific insets
2905                 enable = !inDescriptionItem(cur)
2906                         && (varia || arg.empty() || arg == "Standard");
2907                 break;
2908         }
2909         case LFUN_NOTE_INSERT:
2910                 code = NOTE_CODE;
2911                 // in commands (sections etc.) and description items,
2912                 // only Notes are allowed
2913                 enable = (cmd.argument().empty() || cmd.getArg(0) == "Note" ||
2914                           (!cur.paragraph().layout().isCommand()
2915                            && !inDescriptionItem(cur)));
2916                 break;
2917         case LFUN_FLEX_INSERT: {
2918                 code = FLEX_CODE;
2919                 string s = cmd.getArg(0);
2920                 InsetLayout il =
2921                         cur.buffer()->params().documentClass().insetLayout(from_utf8(s));
2922                 if (il.lyxtype() != InsetLayout::CHARSTYLE &&
2923                     il.lyxtype() != InsetLayout::CUSTOM &&
2924                     il.lyxtype() != InsetLayout::ELEMENT &&
2925                     il.lyxtype ()!= InsetLayout::STANDARD)
2926                         enable = false;
2927                 break;
2928                 }
2929         case LFUN_BOX_INSERT:
2930                 code = BOX_CODE;
2931                 break;
2932         case LFUN_BRANCH_INSERT:
2933                 code = BRANCH_CODE;
2934                 if (cur.buffer()->masterBuffer()->params().branchlist().empty()
2935                     && cur.buffer()->params().branchlist().empty())
2936                         enable = false;
2937                 break;
2938         case LFUN_IPA_INSERT:
2939                 code = IPA_CODE;
2940                 break;
2941         case LFUN_PHANTOM_INSERT:
2942                 code = PHANTOM_CODE;
2943                 break;
2944         case LFUN_LABEL_INSERT:
2945                 code = LABEL_CODE;
2946                 break;
2947         case LFUN_INFO_INSERT:
2948                 code = INFO_CODE;
2949                 break;
2950         case LFUN_ARGUMENT_INSERT: {
2951                 code = ARG_CODE;
2952                 allow_in_passthru = true;
2953                 string const arg = cmd.getArg(0);
2954                 if (arg.empty()) {
2955                         enable = false;
2956                         break;
2957                 }
2958                 Layout const & lay = cur.paragraph().layout();
2959                 Layout::LaTeXArgMap args = lay.args();
2960                 Layout::LaTeXArgMap::const_iterator const lait =
2961                                 args.find(arg);
2962                 if (lait != args.end()) {
2963                         enable = true;
2964                         pit_type pit = cur.pit();
2965                         pit_type lastpit = cur.pit();
2966                         if (lay.isEnvironment() && !prefixIs(arg, "item:")) {
2967                                 // In a sequence of "merged" environment layouts, we only allow
2968                                 // non-item arguments once.
2969                                 lastpit = cur.lastpit();
2970                                 // get the first paragraph in sequence with this layout
2971                                 depth_type const current_depth = cur.paragraph().params().depth();
2972                                 while (true) {
2973                                         if (pit == 0)
2974                                                 break;
2975                                         Paragraph cpar = pars_[pit - 1];
2976                                         if (cpar.layout() == lay && cpar.params().depth() == current_depth)
2977                                                 --pit;
2978                                         else
2979                                                 break;
2980                                 }
2981                         }
2982                         for (; pit <= lastpit; ++pit) {
2983                                 if (pars_[pit].layout() != lay)
2984                                         break;
2985                                 for (auto const & table : pars_[pit].insetList())
2986                                         if (InsetArgument const * ins = table.inset->asInsetArgument())
2987                                                 if (ins->name() == arg) {
2988                                                         // we have this already
2989                                                         enable = false;
2990                                                         break;
2991                                                 }
2992                         }
2993                 } else
2994                         enable = false;
2995                 break;
2996         }
2997         case LFUN_INDEX_INSERT:
2998                 code = INDEX_CODE;
2999                 break;
3000         case LFUN_INDEX_PRINT:
3001                 code = INDEX_PRINT_CODE;
3002                 // not allowed in description items
3003                 enable = !inDescriptionItem(cur);
3004                 break;
3005         case LFUN_NOMENCL_INSERT:
3006                 if (cur.selIsMultiCell() || cur.selIsMultiLine()) {
3007                         enable = false;
3008                         break;
3009                 }
3010                 code = NOMENCL_CODE;
3011                 break;
3012         case LFUN_NOMENCL_PRINT:
3013                 code = NOMENCL_PRINT_CODE;
3014                 // not allowed in description items
3015                 enable = !inDescriptionItem(cur);
3016                 break;
3017         case LFUN_HREF_INSERT:
3018                 if (cur.selIsMultiCell() || cur.selIsMultiLine()) {
3019                         enable = false;
3020                         break;
3021                 }
3022                 code = HYPERLINK_CODE;
3023                 break;
3024         case LFUN_IPAMACRO_INSERT: {
3025                 string const arg = cmd.getArg(0);
3026                 if (arg == "deco")
3027                         code = IPADECO_CODE;
3028                 else
3029                         code = IPACHAR_CODE;
3030                 break;
3031         }
3032         case LFUN_QUOTE_INSERT:
3033                 // always allow this, since we will inset a raw quote
3034                 // if an inset is not allowed.
3035                 allow_in_passthru = true;
3036                 break;
3037         case LFUN_SPECIALCHAR_INSERT:
3038                 code = SPECIALCHAR_CODE;
3039                 break;
3040         case LFUN_SPACE_INSERT:
3041                 // slight hack: we know this is allowed in math mode
3042                 if (cur.inTexted())
3043                         code = SPACE_CODE;
3044                 break;
3045         case LFUN_PREVIEW_INSERT:
3046                 code = PREVIEW_CODE;
3047                 break;
3048         case LFUN_SCRIPT_INSERT:
3049                 code = SCRIPT_CODE;
3050                 break;
3051
3052         case LFUN_MATH_INSERT:
3053         case LFUN_MATH_AMS_MATRIX:
3054         case LFUN_MATH_MATRIX:
3055         case LFUN_MATH_DELIM:
3056         case LFUN_MATH_BIGDELIM:
3057         case LFUN_MATH_DISPLAY:
3058         case LFUN_MATH_MODE:
3059         case LFUN_MATH_MACRO:
3060         case LFUN_MATH_SUBSCRIPT:
3061         case LFUN_MATH_SUPERSCRIPT:
3062                 code = MATH_HULL_CODE;
3063                 break;
3064
3065         case LFUN_REGEXP_MODE:
3066                 code = MATH_HULL_CODE;
3067                 enable = cur.buffer()->isInternal() && !cur.inRegexped();
3068                 break;
3069
3070         case LFUN_INSET_MODIFY:
3071                 // We need to disable this, because we may get called for a
3072                 // tabular cell via
3073                 // InsetTabular::getStatus() -> InsetText::getStatus()
3074                 // and we don't handle LFUN_INSET_MODIFY.
3075                 enable = false;
3076                 break;
3077
3078         case LFUN_FONT_EMPH:
3079                 flag.setOnOff(fontinfo.emph() == FONT_ON);
3080                 enable = !cur.paragraph().isPassThru();
3081                 break;
3082
3083         case LFUN_FONT_ITAL:
3084                 flag.setOnOff(fontinfo.shape() == ITALIC_SHAPE);
3085                 enable = !cur.paragraph().isPassThru();
3086                 break;
3087
3088         case LFUN_FONT_NOUN:
3089                 flag.setOnOff(fontinfo.noun() == FONT_ON);
3090                 enable = !cur.paragraph().isPassThru();
3091                 break;
3092
3093         case LFUN_FONT_BOLD:
3094         case LFUN_FONT_BOLDSYMBOL:
3095                 flag.setOnOff(fontinfo.series() == BOLD_SERIES);
3096                 enable = !cur.paragraph().isPassThru();
3097                 break;
3098
3099         case LFUN_FONT_SANS:
3100                 flag.setOnOff(fontinfo.family() == SANS_FAMILY);
3101                 enable = !cur.paragraph().isPassThru();
3102                 break;
3103
3104         case LFUN_FONT_ROMAN:
3105                 flag.setOnOff(fontinfo.family() == ROMAN_FAMILY);
3106                 enable = !cur.paragraph().isPassThru();
3107                 break;
3108
3109         case LFUN_FONT_TYPEWRITER:
3110                 flag.setOnOff(fontinfo.family() == TYPEWRITER_FAMILY);
3111                 enable = !cur.paragraph().isPassThru();
3112                 break;
3113
3114         case LFUN_CUT:
3115         case LFUN_COPY:
3116                 enable = cur.selection();
3117                 break;
3118
3119         case LFUN_PASTE: {
3120                 if (cmd.argument().empty()) {
3121                         if (theClipboard().isInternal())
3122                                 enable = cap::numberOfSelections() > 0;
3123                         else
3124                                 enable = !theClipboard().empty();
3125                         break;
3126                 }
3127
3128                 // we have an argument
3129                 string const arg = to_utf8(cmd.argument());
3130                 if (isStrUnsignedInt(arg)) {
3131                         // it's a number and therefore means the internal stack
3132                         unsigned int n = convert<unsigned int>(arg);
3133                         enable = cap::numberOfSelections() > n;
3134                         break;
3135                 }
3136
3137                 // explicit text type?
3138                 if (arg == "html") {
3139                         // Do not enable for PlainTextType, since some tidying in the
3140                         // frontend is needed for HTML, which is too unsafe for plain text.
3141                         enable = theClipboard().hasTextContents(Clipboard::HtmlTextType);
3142                         break;
3143                 } else if (arg == "latex") {
3144                         // LaTeX is usually not available on the clipboard with
3145                         // the correct MIME type, but in plain text.
3146                         enable = theClipboard().hasTextContents(Clipboard::PlainTextType) ||
3147                                  theClipboard().hasTextContents(Clipboard::LaTeXTextType);
3148                         break;
3149                 }
3150
3151                 Clipboard::GraphicsType type = Clipboard::AnyGraphicsType;
3152                 if (arg == "pdf")
3153                         type = Clipboard::PdfGraphicsType;
3154                 else if (arg == "png")
3155                         type = Clipboard::PngGraphicsType;
3156                 else if (arg == "jpeg")
3157                         type = Clipboard::JpegGraphicsType;
3158                 else if (arg == "linkback")
3159                         type = Clipboard::LinkBackGraphicsType;
3160                 else if (arg == "emf")
3161                         type = Clipboard::EmfGraphicsType;
3162                 else if (arg == "wmf")
3163                         type = Clipboard::WmfGraphicsType;
3164                 else {
3165                         // unknown argument
3166                         LYXERR0("Unrecognized graphics type: " << arg);
3167                         // we don't want to assert if the user just mistyped the LFUN
3168                         LATTEST(cmd.origin() != FuncRequest::INTERNAL);
3169                         enable = false;
3170                         break;
3171                 }
3172                 enable = theClipboard().hasGraphicsContents(type);
3173                 break;
3174         }
3175
3176         case LFUN_CLIPBOARD_PASTE:
3177         case LFUN_CLIPBOARD_PASTE_SIMPLE:
3178                 enable = !theClipboard().empty();
3179                 break;
3180
3181         case LFUN_PRIMARY_SELECTION_PASTE:
3182                 enable = cur.selection() || !theSelection().empty();
3183                 break;
3184
3185         case LFUN_SELECTION_PASTE:
3186                 enable = cap::selection();
3187                 break;
3188
3189         case LFUN_PARAGRAPH_MOVE_UP:
3190                 enable = cur.pit() > 0 && !cur.selection();
3191                 break;
3192
3193         case LFUN_PARAGRAPH_MOVE_DOWN:
3194                 enable = cur.pit() < cur.lastpit() && !cur.selection();
3195                 break;
3196
3197         case LFUN_CHANGE_ACCEPT:
3198         case LFUN_CHANGE_REJECT:
3199                 if (!cur.selection())
3200                         enable = cur.paragraph().isChanged(cur.pos());
3201                 else {
3202                         // will enable if there is a change in the selection
3203                         enable = false;
3204
3205                         // cheap improvement for efficiency: using cached
3206                         // buffer variable, if there is no change in the
3207                         // document, no need to check further.
3208                         if (!cur.buffer()->areChangesPresent())
3209                                 break;
3210
3211                         for (DocIterator it = cur.selectionBegin(); ; it.forwardPar()) {
3212                                 pos_type const beg = it.pos();
3213                                 pos_type end;
3214                                 bool const in_last_par = (it.pit() == cur.selectionEnd().pit() &&
3215                                                           it.idx() == cur.selectionEnd().idx());
3216                                 if (in_last_par)
3217                                         end = cur.selectionEnd().pos();
3218                                 else
3219                                         // the +1 is needed for cases, e.g., where there is a
3220                                         // paragraph break. See #11629.
3221                                         end = it.lastpos() + 1;
3222                                 if (beg != end && it.paragraph().isChanged(beg, end)) {
3223                                         enable = true;
3224                                         break;
3225                                 }
3226                                 if (in_last_par)
3227                                         break;
3228                         }
3229                 }
3230                 break;
3231
3232         case LFUN_OUTLINE_UP:
3233         case LFUN_OUTLINE_DOWN:
3234         case LFUN_OUTLINE_IN:
3235         case LFUN_OUTLINE_OUT:
3236                 // FIXME: LyX is not ready for outlining within inset.
3237                 enable = isMainText()
3238                         && cur.buffer()->text().getTocLevel(cur.pit()) != Layout::NOT_IN_TOC;
3239                 break;
3240
3241         case LFUN_NEWLINE_INSERT:
3242                 // LaTeX restrictions (labels or empty par)
3243                 enable = !cur.paragraph().isPassThru()
3244                         && cur.pos() > cur.paragraph().beginOfBody();
3245                 break;
3246
3247         case LFUN_SEPARATOR_INSERT:
3248                 // Always enabled for now
3249                 enable = true;
3250                 break;
3251
3252         case LFUN_TAB_INSERT:
3253         case LFUN_TAB_DELETE:
3254                 enable = cur.paragraph().isPassThru();
3255                 break;
3256
3257         case LFUN_SET_GRAPHICS_GROUP: {
3258                 InsetGraphics * ins = graphics::getCurrentGraphicsInset(cur);
3259                 if (!ins)
3260                         enable = false;
3261                 else
3262                         flag.setOnOff(to_utf8(cmd.argument()) == ins->getParams().groupId);
3263                 break;
3264         }
3265
3266         case LFUN_NEWPAGE_INSERT:
3267                 // not allowed in description items
3268                 code = NEWPAGE_CODE;
3269                 enable = !inDescriptionItem(cur);
3270                 break;
3271
3272         case LFUN_DATE_INSERT: {
3273                 string const format = cmd.argument().empty()
3274                         ? lyxrc.date_insert_format : to_utf8(cmd.argument());
3275                 enable = support::os::is_valid_strftime(format);
3276                 break;
3277         }
3278
3279         case LFUN_LANGUAGE:
3280                 enable = !cur.paragraph().isPassThru();
3281                 flag.setOnOff(cmd.getArg(0) == cur.real_current_font.language()->lang());
3282                 break;
3283
3284         case LFUN_PARAGRAPH_BREAK:
3285                 enable = inset().allowMultiPar();
3286                 break;
3287
3288         case LFUN_SPELLING_ADD:
3289         case LFUN_SPELLING_IGNORE:
3290         case LFUN_SPELLING_REMOVE:
3291                 enable = theSpellChecker() != NULL;
3292                 if (enable && !cmd.getArg(1).empty()) {
3293                         // validate explicitly given language
3294                         Language const * const lang = const_cast<Language *>(languages.getLanguage(cmd.getArg(1)));
3295                         enable &= lang != NULL;
3296                 }
3297                 break;
3298
3299         case LFUN_LAYOUT: {
3300                 DocumentClass const & tclass = cur.buffer()->params().documentClass();
3301                 bool const ignoreautonests = cmd.getArg(1) == "ignoreautonests";
3302                 docstring layout = ignoreautonests ? from_utf8(cmd.getArg(0)) : cmd.argument();
3303                 if (layout.empty())
3304                         layout = tclass.defaultLayoutName();
3305                 enable = !owner_->forcePlainLayout() && tclass.hasLayout(layout);
3306
3307                 flag.setOnOff(layout == cur.paragraph().layout().name());
3308                 break;
3309         }
3310
3311         case LFUN_ENVIRONMENT_SPLIT: {
3312                 if (cmd.argument() == "outer") {
3313                         // check if we have an environment in our nesting hierarchy
3314                         bool res = false;
3315                         depth_type const current_depth = cur.paragraph().params().depth();
3316                         pit_type pit = cur.pit();
3317                         Paragraph cpar = pars_[pit];
3318                         while (true) {
3319                                 if (pit == 0 || cpar.params().depth() == 0)
3320                                         break;
3321                                 --pit;
3322                                 cpar = pars_[pit];
3323                                 if (cpar.params().depth() < current_depth)
3324                                         res = cpar.layout().isEnvironment();
3325                         }
3326                         enable = res;
3327                         break;
3328                 }
3329                 else if (cmd.argument() == "previous") {
3330                         // look if we have an environment in the previous par
3331                         pit_type pit = cur.pit();
3332                         Paragraph cpar = pars_[pit];
3333                         if (pit > 0) {
3334                                 --pit;
3335                                 cpar = pars_[pit];
3336                                 enable = cpar.layout().isEnvironment();
3337                                 break;
3338                         }
3339                         enable = false;
3340                         break;
3341                 }
3342                 else if (cur.paragraph().layout().isEnvironment()) {
3343                         enable = cmd.argument() == "before"
3344                                 || cur.pos() > 0 || !isFirstInSequence(cur.pit());
3345                         break;
3346                 }
3347                 enable = false;
3348                 break;
3349         }
3350
3351         case LFUN_LAYOUT_PARAGRAPH:
3352         case LFUN_PARAGRAPH_PARAMS:
3353         case LFUN_PARAGRAPH_PARAMS_APPLY:
3354         case LFUN_PARAGRAPH_UPDATE:
3355                 enable = owner_->allowParagraphCustomization();
3356                 break;
3357
3358         // FIXME: why are accent lfuns forbidden with pass_thru layouts?
3359         //  Because they insert COMBINING DIACRITICAL Unicode characters,
3360         //  that cannot be handled by LaTeX but must be converted according
3361         //  to the definition in lib/unicodesymbols?
3362         case LFUN_ACCENT_ACUTE:
3363         case LFUN_ACCENT_BREVE:
3364         case LFUN_ACCENT_CARON:
3365         case LFUN_ACCENT_CEDILLA:
3366         case LFUN_ACCENT_CIRCLE:
3367         case LFUN_ACCENT_CIRCUMFLEX:
3368         case LFUN_ACCENT_DOT:
3369         case LFUN_ACCENT_GRAVE:
3370         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
3371         case LFUN_ACCENT_MACRON:
3372         case LFUN_ACCENT_OGONEK:
3373         case LFUN_ACCENT_TIE:
3374         case LFUN_ACCENT_TILDE:
3375         case LFUN_ACCENT_PERISPOMENI:
3376         case LFUN_ACCENT_UMLAUT:
3377         case LFUN_ACCENT_UNDERBAR:
3378         case LFUN_ACCENT_UNDERDOT:
3379         case LFUN_FONT_DEFAULT:
3380         case LFUN_FONT_FRAK:
3381         case LFUN_FONT_SIZE:
3382         case LFUN_FONT_STATE:
3383         case LFUN_FONT_UNDERLINE:
3384         case LFUN_FONT_STRIKEOUT:
3385         case LFUN_FONT_CROSSOUT:
3386         case LFUN_FONT_UNDERUNDERLINE:
3387         case LFUN_FONT_UNDERWAVE:
3388         case LFUN_TEXTSTYLE_APPLY:
3389         case LFUN_TEXTSTYLE_UPDATE:
3390                 enable = !cur.paragraph().isPassThru();
3391                 break;
3392
3393         case LFUN_WORD_DELETE_FORWARD:
3394         case LFUN_WORD_DELETE_BACKWARD:
3395         case LFUN_LINE_DELETE_FORWARD:
3396         case LFUN_WORD_FORWARD:
3397         case LFUN_WORD_BACKWARD:
3398         case LFUN_WORD_RIGHT:
3399         case LFUN_WORD_LEFT:
3400         case LFUN_CHAR_FORWARD:
3401         case LFUN_CHAR_FORWARD_SELECT:
3402         case LFUN_CHAR_BACKWARD:
3403         case LFUN_CHAR_BACKWARD_SELECT:
3404         case LFUN_CHAR_LEFT:
3405         case LFUN_CHAR_LEFT_SELECT:
3406         case LFUN_CHAR_RIGHT:
3407         case LFUN_CHAR_RIGHT_SELECT:
3408         case LFUN_UP:
3409         case LFUN_UP_SELECT:
3410         case LFUN_DOWN:
3411         case LFUN_DOWN_SELECT:
3412         case LFUN_PARAGRAPH_UP_SELECT:
3413         case LFUN_PARAGRAPH_DOWN_SELECT:
3414         case LFUN_LINE_BEGIN_SELECT:
3415         case LFUN_LINE_END_SELECT:
3416         case LFUN_WORD_FORWARD_SELECT:
3417         case LFUN_WORD_BACKWARD_SELECT:
3418         case LFUN_WORD_RIGHT_SELECT:
3419         case LFUN_WORD_LEFT_SELECT:
3420         case LFUN_WORD_SELECT:
3421         case LFUN_SECTION_SELECT:
3422         case LFUN_BUFFER_BEGIN:
3423         case LFUN_BUFFER_END:
3424         case LFUN_BUFFER_BEGIN_SELECT:
3425         case LFUN_BUFFER_END_SELECT:
3426         case LFUN_INSET_BEGIN:
3427         case LFUN_INSET_END:
3428         case LFUN_INSET_BEGIN_SELECT:
3429         case LFUN_INSET_END_SELECT:
3430         case LFUN_PARAGRAPH_UP:
3431         case LFUN_PARAGRAPH_DOWN:
3432         case LFUN_LINE_BEGIN:
3433         case LFUN_LINE_END:
3434         case LFUN_CHAR_DELETE_FORWARD:
3435         case LFUN_CHAR_DELETE_BACKWARD:
3436         case LFUN_WORD_UPCASE:
3437         case LFUN_WORD_LOWCASE:
3438         case LFUN_WORD_CAPITALIZE:
3439         case LFUN_CHARS_TRANSPOSE:
3440         case LFUN_SERVER_GET_XY:
3441         case LFUN_SERVER_SET_XY:
3442         case LFUN_SERVER_GET_LAYOUT:
3443         case LFUN_SELF_INSERT:
3444         case LFUN_UNICODE_INSERT:
3445         case LFUN_THESAURUS_ENTRY:
3446         case LFUN_ESCAPE:
3447         case LFUN_SERVER_GET_STATISTICS:
3448                 // these are handled in our dispatch()
3449                 enable = true;
3450                 break;
3451
3452         case LFUN_INSET_INSERT: {
3453                 string const type = cmd.getArg(0);
3454                 if (type == "toc") {
3455                         code = TOC_CODE;
3456                         // not allowed in description items
3457                         //FIXME: couldn't this be merged in Inset::insetAllowed()?
3458                         enable = !inDescriptionItem(cur);
3459                 } else {
3460                         enable = true;
3461                 }
3462                 break;
3463         }
3464
3465         default:
3466                 return false;
3467         }
3468
3469         if (code != NO_CODE
3470             && (cur.empty()
3471                 || !cur.inset().insetAllowed(code)
3472                 || (cur.paragraph().layout().pass_thru && !allow_in_passthru)))
3473                 enable = false;
3474
3475         flag.setEnabled(enable);
3476         return true;
3477 }
3478
3479
3480 void Text::pasteString(Cursor & cur, docstring const & clip,
3481                 bool asParagraphs)
3482 {
3483         if (!clip.empty()) {
3484                 cur.recordUndo();
3485                 if (asParagraphs)
3486                         insertStringAsParagraphs(cur, clip, cur.current_font);
3487                 else
3488                         insertStringAsLines(cur, clip, cur.current_font);
3489         }
3490 }
3491
3492
3493 // FIXME: an item inset would make things much easier.
3494 bool Text::inDescriptionItem(Cursor & cur) const
3495 {
3496         Paragraph & par = cur.paragraph();
3497         pos_type const pos = cur.pos();
3498         pos_type const body_pos = par.beginOfBody();
3499
3500         if (par.layout().latextype != LATEX_LIST_ENVIRONMENT
3501             && (par.layout().latextype != LATEX_ITEM_ENVIRONMENT
3502                 || par.layout().margintype != MARGIN_FIRST_DYNAMIC))
3503                 return false;
3504
3505         return (pos < body_pos
3506                 || (pos == body_pos
3507                     && (pos == 0 || par.getChar(pos - 1) != ' ')));
3508 }
3509
3510 } // namespace lyx