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::cutSelection;
  93 using cap::cutSelectionToTemp;
  94 using cap::pasteFromStack;
  95 using cap::pasteFromTemp;
  96 using cap::pasteClipboardText;
  97 using cap::pasteClipboardGraphics;
  98 using cap::replaceSelection;
  99 using cap::grabAndEraseSelection;
 100 using cap::selClearOrDel;
 101 using cap::pasteSimpleText;
 102 using frontend::Clipboard;
 103
 104 // globals...
 105 static Font freefont(ignore_font, ignore_language);
 106 static bool toggleall = false;
 107
 108 static void toggleAndShow(Cursor & cur, Text * text,
 109         Font const & font, bool toggleall = true)
 110 {
 111         text->toggleFree(cur, font, toggleall);
 112
 113         if (font.language() != ignore_language ||
 114             font.fontInfo().number() != FONT_IGNORE) {
 115                 TextMetrics const & tm = cur.bv().textMetrics(text);
 116                 if (cur.boundary() != tm.isRTLBoundary(cur.pit(), cur.pos(),
 117                                                        cur.real_current_font))
 118                         text->setCursor(cur, cur.pit(), cur.pos(),
 119                                         false, !cur.boundary());
 120         }
 121 }
 122
 123
 124 static void moveCursor(Cursor & cur, bool selecting)
 125 {
 126         if (selecting || cur.mark())
 127                 cur.setSelection();
 128 }
 129
 130
 131 static void finishChange(Cursor & cur, bool selecting)
 132 {
 133         cur.finishUndo();
 134         moveCursor(cur, selecting);
 135 }
 136
 137
 138 static void mathDispatch(Cursor & cur, FuncRequest const & cmd)
 139 {
 140         cur.recordUndo();
 141         docstring sel = cur.selectionAsString(false);
 142
 143         // It may happen that sel is empty but there is a selection
 144         replaceSelection(cur);
 145
 146         // Is this a valid formula?
 147         bool valid = true;
 148
 149         if (sel.empty()) {
 150 #ifdef ENABLE_ASSERTIONS
 151                 const int old_pos = cur.pos();
 152 #endif
 153                 cur.insert(new InsetMathHull(cur.buffer(), hullSimple));
 154 #ifdef ENABLE_ASSERTIONS
 155                 LATTEST(old_pos == cur.pos());
 156 #endif
 157                 cur.nextInset()->edit(cur, true);
 158                 if (cmd.action() != LFUN_MATH_MODE)
 159                         // LFUN_MATH_MODE has a different meaning in math mode
 160                         cur.dispatch(cmd);
 161         } else {
 162                 InsetMathHull * formula = new InsetMathHull(cur.buffer());
 163                 string const selstr = to_utf8(sel);
 164                 istringstream is(selstr);
 165                 Lexer lex;
 166                 lex.setStream(is);
 167                 if (!formula->readQuiet(lex)) {
 168                         // No valid formula, let's try with delims
 169                         is.str("$" + selstr + "$");
 170                         lex.setStream(is);
 171                         if (!formula->readQuiet(lex)) {
 172                                 // Still not valid, leave it as is
 173                                 valid = false;
 174                                 delete formula;
 175                                 cur.insert(sel);
 176                         }
 177                 }
 178                 if (valid) {
 179                         cur.insert(formula);
 180                         cur.nextInset()->edit(cur, true);
 181                         LASSERT(cur.inMathed(), return);
 182                         cur.pos() = 0;
 183                         cur.resetAnchor();
 184                         cur.selection(true);
 185                         cur.pos() = cur.lastpos();
 186                         if (cmd.action() != LFUN_MATH_MODE)
 187                                 // LFUN_MATH_MODE has a different meaning in math mode
 188                                 cur.dispatch(cmd);
 189                         cur.clearSelection();
 190                         cur.pos() = cur.lastpos();
 191                 }
 192         }
 193         if (valid)
 194                 cur.message(from_utf8(N_("Math editor mode")));
 195         else
 196                 cur.message(from_utf8(N_("No valid math formula")));
 197 }
 198
 199
 200 void regexpDispatch(Cursor & cur, FuncRequest const & cmd)
 201 {
 202         LASSERT(cmd.action() == LFUN_REGEXP_MODE, return);
 203         if (cur.inRegexped()) {
 204                 cur.message(_("Already in regular expression mode"));
 205                 return;
 206         }
 207         cur.recordUndo();
 208         docstring sel = cur.selectionAsString(false);
 209
 210         // It may happen that sel is empty but there is a selection
 211         replaceSelection(cur);
 212
 213         cur.insert(new InsetMathHull(cur.buffer(), hullRegexp));
 214         cur.nextInset()->edit(cur, true);
 215         cur.niceInsert(sel);
 216
 217         cur.message(_("Regexp editor mode"));
 218 }
 219
 220
 221 static void specialChar(Cursor & cur, InsetSpecialChar::Kind kind)
 222 {
 223         cur.recordUndo();
 224         cap::replaceSelection(cur);
 225         cur.insert(new InsetSpecialChar(kind));
 226         cur.posForward();
 227 }
 228
 229
 230 static void ipaChar(Cursor & cur, InsetIPAChar::Kind kind)
 231 {
 232         cur.recordUndo();
 233         cap::replaceSelection(cur);
 234         cur.insert(new InsetIPAChar(kind));
 235         cur.posForward();
 236 }
 237
 238
 239 static bool doInsertInset(Cursor & cur, Text * text,
 240         FuncRequest const & cmd, bool edit, bool pastesel)
 241 {
 242         Buffer & buffer = cur.bv().buffer();
 243         BufferParams const & bparams = buffer.params();
 244         Inset * inset = createInset(&buffer, cmd);
 245         if (!inset)
 246                 return false;
 247
 248         if (InsetCollapsible * ci = inset->asInsetCollapsible())
 249                 ci->setButtonLabel();
 250
 251         cur.recordUndo();
 252         if (cmd.action() == LFUN_INDEX_INSERT) {
 253                 docstring ds = subst(text->getStringToIndex(cur), '\n', ' ');
 254                 text->insertInset(cur, inset);
 255                 if (edit)
 256                         inset->edit(cur, true);
 257                 // Now put this into inset
 258                 Font const f(inherit_font, cur.current_font.language());
 259                 if (!ds.empty()) {
 260                         cur.text()->insertStringAsLines(cur, ds, f);
 261                         cur.leaveInset(*inset);
 262                 }
 263                 return true;
 264         }
 265         else if (cmd.action() == LFUN_ARGUMENT_INSERT) {
 266                 bool cotextinsert = false;
 267                 InsetArgument const * const ia = static_cast<InsetArgument const *>(inset);
 268                 Layout const & lay = cur.paragraph().layout();
 269                 Layout::LaTeXArgMap args = lay.args();
 270                 Layout::LaTeXArgMap::const_iterator const lait = args.find(ia->name());
 271                 if (lait != args.end())
 272                         cotextinsert = (*lait).second.insertcotext;
 273                 else {
 274                         InsetLayout const & il = cur.inset().getLayout();
 275                         args = il.args();
 276                         Layout::LaTeXArgMap::const_iterator const ilait = args.find(ia->name());
 277                         if (ilait != args.end())
 278                                 cotextinsert = (*ilait).second.insertcotext;
 279                 }
 280                 // The argument requests to insert a copy of the co-text to the inset
 281                 if (cotextinsert) {
 282                         docstring ds;
 283                         // If we have a selection within a paragraph, use this
 284                         if (cur.selection() && cur.selBegin().pit() == cur.selEnd().pit())
 285                                 ds = cur.selectionAsString(false);
 286                         // else use the whole paragraph
 287                         else
 288                                 ds = cur.paragraph().asString();
 289                         text->insertInset(cur, inset);
 290                         if (edit)
 291                                 inset->edit(cur, true);
 292                         // Now put co-text into inset
 293                         Font const f(inherit_font, cur.current_font.language());
 294                         if (!ds.empty()) {
 295                                 cur.text()->insertStringAsLines(cur, ds, f);
 296                                 cur.leaveInset(*inset);
 297                         }
 298                         return true;
 299                 }
 300         }
 301
 302         bool gotsel = false;
 303         if (cur.selection()) {
 304                 cutSelectionToTemp(cur, false, pastesel);
 305                 cur.clearSelection();
 306                 gotsel = true;
 307         }
 308         text->insertInset(cur, inset);
 309
 310         if (edit)
 311                 inset->edit(cur, true);
 312
 313         if (!gotsel || !pastesel)
 314                 return true;
 315
 316         pasteFromTemp(cur, cur.buffer()->errorList("Paste"));
 317         cur.buffer()->errors("Paste");
 318         cur.clearSelection(); // bug 393
 319         cur.finishUndo();
 320         InsetText * inset_text = inset->asInsetText();
 321         if (inset_text) {
 322                 inset_text->fixParagraphsFont();
 323                 if (!inset_text->allowMultiPar() || cur.lastpit() == 0) {
 324                         // reset first par to default
 325                         cur.text()->paragraphs().begin()
 326                                 ->setPlainOrDefaultLayout(bparams.documentClass());
 327                         cur.pos() = 0;
 328                         cur.pit() = 0;
 329                         // Merge multiple paragraphs -- hack
 330                         while (cur.lastpit() > 0)
 331                                 mergeParagraph(bparams, cur.text()->paragraphs(), 0);
 332                         if (cmd.action() == LFUN_FLEX_INSERT)
 333                                 return true;
 334                         Cursor old = cur;
 335                         cur.leaveInset(*inset);
 336                         if (cmd.action() == LFUN_PREVIEW_INSERT
 337                             || cmd.action() == LFUN_IPA_INSERT)
 338                                 // trigger preview
 339                                 notifyCursorLeavesOrEnters(old, cur);
 340                 }
 341         } else {
 342                 cur.leaveInset(*inset);
 343                 // reset surrounding par to default
 344                 DocumentClass const & dc = bparams.documentClass();
 345                 docstring const layoutname = inset->usePlainLayout()
 346                         ? dc.plainLayoutName()
 347                         : dc.defaultLayoutName();
 348                 text->setLayout(cur, layoutname);
 349         }
 350         return true;
 351 }
 352
 353
 354 string const freefont2string()
 355 {
 356         return freefont.toString(toggleall);
 357 }
 358
 359
 360 /// the type of outline operation
 361 enum OutlineOp {
 362         OutlineUp, // Move this header with text down
 363         OutlineDown,   // Move this header with text up
 364         OutlineIn, // Make this header deeper
 365         OutlineOut // Make this header shallower
 366 };
 367
 368
 369 static void outline(OutlineOp mode, Cursor & cur)
 370 {
 371         Buffer & buf = *cur.buffer();
 372         pit_type & pit = cur.pit();
 373         ParagraphList & pars = buf.text().paragraphs();
 374         ParagraphList::iterator const bgn = pars.begin();
 375         // The first paragraph of the area to be copied:
 376         ParagraphList::iterator start = lyx::next(bgn, pit);
 377         // The final paragraph of area to be copied:
 378         ParagraphList::iterator finish = start;
 379         ParagraphList::iterator const end = pars.end();
 380
 381         int const thistoclevel = buf.text().getTocLevel(distance(bgn, start));
 382         int toclevel;
 383
 384         // Move out (down) from this section header
 385         if (finish != end)
 386                 ++finish;
 387
 388         // Seek the one (on same level) below
 389         for (; finish != end; ++finish) {
 390                 toclevel = buf.text().getTocLevel(distance(bgn, finish));
 391                 if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel)
 392                         break;
 393         }
 394
 395         switch (mode) {
 396                 case OutlineUp: {
 397                         if (start == pars.begin())
 398                                 // Nothing to move.
 399                                 return;
 400                         ParagraphList::iterator dest = start;
 401                         // Move out (up) from this header
 402                         if (dest == bgn)
 403                                 return;
 404                         // Search previous same-level header above
 405                         do {
 406                                 --dest;
 407                                 toclevel = buf.text().getTocLevel(distance(bgn, dest));
 408                         } while(dest != bgn
 409                                 && (toclevel == Layout::NOT_IN_TOC
 410                                     || toclevel > thistoclevel));
 411                         // Not found; do nothing
 412                         if (toclevel == Layout::NOT_IN_TOC || toclevel > thistoclevel)
 413                                 return;
 414                         pit_type const newpit = distance(bgn, dest);
 415                         pit_type const len = distance(start, finish);
 416                         pit_type const deletepit = pit + len;
 417                         buf.undo().recordUndo(cur, newpit, deletepit - 1);
 418                         pars.splice(dest, start, finish);
 419                         cur.pit() = newpit;
 420                         break;
 421                 }
 422                 case OutlineDown: {
 423                         if (finish == end)
 424                                 // Nothing to move.
 425                                 return;
 426                         // Go one down from *this* header:
 427                         ParagraphList::iterator dest = next(finish, 1);
 428                         // Go further down to find header to insert in front of:
 429                         for (; dest != end; ++dest) {
 430                                 toclevel = buf.text().getTocLevel(distance(bgn, dest));
 431                                 if (toclevel != Layout::NOT_IN_TOC
 432                                       && toclevel <= thistoclevel)
 433                                         break;
 434                         }
 435                         // One such was found:
 436                         pit_type newpit = distance(bgn, dest);
 437                         buf.undo().recordUndo(cur, pit, newpit - 1);
 438                         pit_type const len = distance(start, finish);
 439                         pars.splice(dest, start, finish);
 440                         cur.pit() = newpit - len;
 441                         break;
 442                 }
 443                 case OutlineIn:
 444                 case OutlineOut: {
 445                         pit_type const len = distance(start, finish);
 446                         buf.undo().recordUndo(cur, pit, pit + len - 1);
 447                         for (; start != finish; ++start) {
 448                                 toclevel = buf.text().getTocLevel(distance(bgn, start));
 449                                 if (toclevel == Layout::NOT_IN_TOC)
 450                                         continue;
 451
 452                                 DocumentClass const & tc = buf.params().documentClass();
 453                                 DocumentClass::const_iterator lit = tc.begin();
 454                                 DocumentClass::const_iterator len = tc.end();
 455                                 int const newtoclevel =
 456                                         (mode == OutlineIn ? toclevel + 1 : toclevel - 1);
 457                                 LabelType const oldlabeltype = start->layout().labeltype;
 458
 459                                 for (; lit != len; ++lit) {
 460                                         if (lit->toclevel ==  newtoclevel &&
 461                                              lit->labeltype == oldlabeltype) {
 462                                                 start->setLayout(*lit);
 463                                                 break;
 464                                         }
 465                                 }
 466                         }
 467                         break;
 468                 }
 469         }
 470 }
 471
 472
 473 void Text::number(Cursor & cur)
 474 {
 475         FontInfo font = ignore_font;
 476         font.setNumber(FONT_TOGGLE);
 477         toggleAndShow(cur, this, Font(font, ignore_language));
 478 }
 479
 480
 481 bool Text::isRTL(Paragraph const & par) const
 482 {
 483         Buffer const & buffer = owner_->buffer();
 484         return par.isRTL(buffer.params());
 485 }
 486
 487
 488 namespace {
 489
 490         Language const * getLanguage(Cursor const & cur, string const & lang) {
 491                 return lang.empty() ? cur.getFont().language() : languages.getLanguage(lang);
 492         }
 493
 494 } // namespace
 495
 496
 497 void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 498 {
 499         LYXERR(Debug::ACTION, "Text::dispatch: cmd: " << cmd);
 500
 501         // Dispatch if the cursor is inside the text. It is not the
 502         // case for context menus (bug 5797).
 503         if (cur.text() != this) {
 504                 cur.undispatched();
 505                 return;
 506         }
 507
 508         BufferView * bv = &cur.bv();
 509         TextMetrics * tm = &bv->textMetrics(this);
 510         if (!tm->contains(cur.pit())) {
 511                 lyx::dispatch(FuncRequest(LFUN_SCREEN_SHOW_CURSOR));
 512                 tm = &bv->textMetrics(this);
 513         }
 514
 515         // FIXME: We use the update flag to indicates wether a singlePar or a
 516         // full screen update is needed. We reset it here but shall we restore it
 517         // at the end?
 518         cur.noScreenUpdate();
 519
 520         LBUFERR(this == cur.text());
 521
 522         // NOTE: This should NOT be a reference. See commit 94a5481a.
 523         CursorSlice const oldTopSlice = cur.top();
 524         bool const oldBoundary = cur.boundary();
 525         bool const oldSelection = cur.selection();
 526         // Signals that, even if needsUpdate == false, an update of the
 527         // cursor paragraph is required
 528         bool singleParUpdate = lyxaction.funcHasFlag(cmd.action(),
 529                 LyXAction::SingleParUpdate);
 530         // Signals that a full-screen update is required
 531         bool needsUpdate = !(lyxaction.funcHasFlag(cmd.action(),
 532                 LyXAction::NoUpdate) || singleParUpdate);
 533         bool const last_misspelled = lyxrc.spellcheck_continuously
 534                 && cur.paragraph().isMisspelled(cur.pos(), true);
 535
 536         FuncCode const act = cmd.action();
 537         switch (act) {
 538
 539         case LFUN_PARAGRAPH_MOVE_DOWN: {
 540                 pit_type const pit = cur.pit();
 541                 cur.recordUndo(pit, pit + 1);
 542                 cur.finishUndo();
 543                 pars_.swap(pit, pit + 1);
 544                 needsUpdate = true;
 545                 cur.forceBufferUpdate();
 546                 ++cur.pit();
 547                 break;
 548         }
 549
 550         case LFUN_PARAGRAPH_MOVE_UP: {
 551                 pit_type const pit = cur.pit();
 552                 cur.recordUndo(pit - 1, pit);
 553                 cur.finishUndo();
 554                 pars_.swap(pit, pit - 1);
 555                 --cur.pit();
 556                 needsUpdate = true;
 557                 cur.forceBufferUpdate();
 558                 break;
 559         }
 560
 561         case LFUN_APPENDIX: {
 562                 Paragraph & par = cur.paragraph();
 563                 bool start = !par.params().startOfAppendix();
 564
 565 // FIXME: The code below only makes sense at top level.
 566 // Should LFUN_APPENDIX be restricted to top-level paragraphs?
 567                 // ensure that we have only one start_of_appendix in this document
 568                 // FIXME: this don't work for multipart document!
 569                 for (pit_type tmp = 0, end = pars_.size(); tmp != end; ++tmp) {
 570                         if (pars_[tmp].params().startOfAppendix()) {
 571                                 cur.recordUndo(tmp, tmp);
 572                                 pars_[tmp].params().startOfAppendix(false);
 573                                 break;
 574                         }
 575                 }
 576
 577                 cur.recordUndo();
 578                 par.params().startOfAppendix(start);
 579
 580                 // we can set the refreshing parameters now
 581                 cur.forceBufferUpdate();
 582                 break;
 583         }
 584
 585         case LFUN_WORD_DELETE_FORWARD:
 586                 if (cur.selection())
 587                         cutSelection(cur, true, false);
 588                 else
 589                         deleteWordForward(cur, cmd.getArg(0) == "force");
 590                 finishChange(cur, false);
 591                 break;
 592
 593         case LFUN_WORD_DELETE_BACKWARD:
 594                 if (cur.selection())
 595                         cutSelection(cur, true, false);
 596                 else
 597                         deleteWordBackward(cur, cmd.getArg(0) == "force");
 598                 finishChange(cur, false);
 599                 break;
 600
 601         case LFUN_LINE_DELETE_FORWARD:
 602                 if (cur.selection())
 603                         cutSelection(cur, true, false);
 604                 else
 605                         tm->deleteLineForward(cur);
 606                 finishChange(cur, false);
 607                 break;
 608
 609         case LFUN_BUFFER_BEGIN:
 610         case LFUN_BUFFER_BEGIN_SELECT:
 611                 needsUpdate |= cur.selHandle(act == LFUN_BUFFER_BEGIN_SELECT);
 612                 if (cur.depth() == 1)
 613                         needsUpdate |= cursorTop(cur);
 614                 else
 615                         cur.undispatched();
 616                 cur.screenUpdateFlags(Update::FitCursor);
 617                 break;
 618
 619         case LFUN_BUFFER_END:
 620         case LFUN_BUFFER_END_SELECT:
 621                 needsUpdate |= cur.selHandle(act == LFUN_BUFFER_END_SELECT);
 622                 if (cur.depth() == 1)
 623                         needsUpdate |= cursorBottom(cur);
 624                 else
 625                         cur.undispatched();
 626                 cur.screenUpdateFlags(Update::FitCursor);
 627                 break;
 628
 629         case LFUN_INSET_BEGIN:
 630         case LFUN_INSET_BEGIN_SELECT:
 631                 needsUpdate |= cur.selHandle(act == LFUN_INSET_BEGIN_SELECT);
 632                 if (cur.depth() == 1 || !cur.top().at_begin())
 633                         needsUpdate |= cursorTop(cur);
 634                 else
 635                         cur.undispatched();
 636                 cur.screenUpdateFlags(Update::FitCursor);
 637                 break;
 638
 639         case LFUN_INSET_END:
 640         case LFUN_INSET_END_SELECT:
 641                 needsUpdate |= cur.selHandle(act == LFUN_INSET_END_SELECT);
 642                 if (cur.depth() == 1 || !cur.top().at_end())
 643                         needsUpdate |= cursorBottom(cur);
 644                 else
 645                         cur.undispatched();
 646                 cur.screenUpdateFlags(Update::FitCursor);
 647                 break;
 648
 649         case LFUN_CHAR_FORWARD:
 650         case LFUN_CHAR_FORWARD_SELECT: {
 651                 //LYXERR0(" LFUN_CHAR_FORWARD[SEL]:\n" << cur);
 652                 needsUpdate |= cur.selHandle(act == LFUN_CHAR_FORWARD_SELECT);
 653                 bool const cur_moved = cursorForward(cur);
 654                 needsUpdate |= cur_moved;
 655
 656                 if (!cur_moved && oldTopSlice == cur.top()
 657                                && cur.boundary() == oldBoundary) {
 658                         cur.undispatched();
 659                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 660
 661                         // we will probably be moving out the inset, so we should execute
 662                         // the depm-mechanism, but only when the cursor has a place to
 663                         // go outside this inset, i.e. in a slice above.
 664                         if (cur.depth() > 1 && cur.pos() == cur.lastpos()
 665                                   && cur.pit() == cur.lastpit()) {
 666                                 // The cursor hasn't changed yet. To give the
 667                                 // DEPM the possibility of doing something we must
 668                                 // provide it with two different cursors.
 669                                 Cursor dummy = cur;
 670                                 dummy.pos() = dummy.pit() = 0;
 671                                 if (cur.bv().checkDepm(dummy, cur))
 672                                         cur.forceBufferUpdate();
 673                         }
 674                 }
 675                 break;
 676         }
 677
 678         case LFUN_CHAR_BACKWARD:
 679         case LFUN_CHAR_BACKWARD_SELECT: {
 680                 //lyxerr << "handle LFUN_CHAR_BACKWARD[_SELECT]:\n" << cur << endl;
 681                 needsUpdate |= cur.selHandle(act == LFUN_CHAR_BACKWARD_SELECT);
 682                 bool const cur_moved = cursorBackward(cur);
 683                 needsUpdate |= cur_moved;
 684
 685                 if (!cur_moved && oldTopSlice == cur.top()
 686                                && cur.boundary() == oldBoundary) {
 687                         cur.undispatched();
 688                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
 689
 690                         // we will probably be moving out the inset, so we should execute
 691                         // the depm-mechanism, but only when the cursor has a place to
 692                         // go outside this inset, i.e. in a slice above.
 693                         if (cur.depth() > 1 && cur.pos() == 0 && cur.pit() == 0) {
 694                                 // The cursor hasn't changed yet. To give the
 695                                 // DEPM the possibility of doing something we must
 696                                 // provide it with two different cursors.
 697                                 Cursor dummy = cur;
 698                                 dummy.pos() = cur.lastpos();
 699                                 dummy.pit() = cur.lastpit();
 700                                 if (cur.bv().checkDepm(dummy, cur))
 701                                         cur.forceBufferUpdate();
 702                         }
 703                 }
 704                 break;
 705         }
 706
 707         case LFUN_CHAR_LEFT:
 708         case LFUN_CHAR_LEFT_SELECT:
 709                 if (lyxrc.visual_cursor) {
 710                         needsUpdate |= cur.selHandle(act == LFUN_CHAR_LEFT_SELECT);
 711                         bool const cur_moved = cursorVisLeft(cur);
 712                         needsUpdate |= cur_moved;
 713                         if (!cur_moved && oldTopSlice == cur.top()
 714                                        && cur.boundary() == oldBoundary) {
 715                                 cur.undispatched();
 716                                 cmd = FuncRequest(LFUN_FINISHED_LEFT);
 717                         }
 718                 } else {
 719                         if (cur.reverseDirectionNeeded()) {
 720                                 cmd.setAction(cmd.action() == LFUN_CHAR_LEFT_SELECT ?
 721                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD);
 722                         } else {
 723                                 cmd.setAction(cmd.action() == LFUN_CHAR_LEFT_SELECT ?
 724                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD);
 725                         }
 726                         dispatch(cur, cmd);
 727                         return;
 728                 }
 729                 break;
 730
 731         case LFUN_CHAR_RIGHT:
 732         case LFUN_CHAR_RIGHT_SELECT:
 733                 if (lyxrc.visual_cursor) {
 734                         needsUpdate |= cur.selHandle(cmd.action() == LFUN_CHAR_RIGHT_SELECT);
 735                         bool const cur_moved = cursorVisRight(cur);
 736                         needsUpdate |= cur_moved;
 737                         if (!cur_moved && oldTopSlice == cur.top()
 738                                        && cur.boundary() == oldBoundary) {
 739                                 cur.undispatched();
 740                                 cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 741                         }
 742                 } else {
 743                         if (cur.reverseDirectionNeeded()) {
 744                                 cmd.setAction(cmd.action() == LFUN_CHAR_RIGHT_SELECT ?
 745                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD);
 746                         } else {
 747                                 cmd.setAction(cmd.action() == LFUN_CHAR_RIGHT_SELECT ?
 748                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD);
 749                         }
 750                         dispatch(cur, cmd);
 751                         return;
 752                 }
 753                 break;
 754
 755
 756         case LFUN_UP_SELECT:
 757         case LFUN_DOWN_SELECT:
 758         case LFUN_UP:
 759         case LFUN_DOWN: {
 760                 // stop/start the selection
 761                 bool select = cmd.action() == LFUN_DOWN_SELECT ||
 762                         cmd.action() == LFUN_UP_SELECT;
 763
 764                 // move cursor up/down
 765                 bool up = cmd.action() == LFUN_UP_SELECT || cmd.action() == LFUN_UP;
 766                 bool const atFirstOrLastRow = cur.atFirstOrLastRow(up);
 767
 768                 if (!atFirstOrLastRow) {
 769                         needsUpdate |= cur.selHandle(select);
 770                         cur.upDownInText(up, needsUpdate);
 771                         needsUpdate |= cur.beforeDispatchCursor().inMathed();
 772                 } else {
 773                         pos_type newpos = up ? 0 : cur.lastpos();
 774                         if (lyxrc.mac_like_cursor_movement && cur.pos() != newpos) {
 775                                 needsUpdate |= cur.selHandle(select);
 776                                 // we do not reset the targetx of the cursor
 777                                 cur.pos() = newpos;
 778                                 needsUpdate |= bv->checkDepm(cur, bv->cursor());
 779                                 cur.updateTextTargetOffset();
 780                                 if (needsUpdate)
 781                                         cur.forceBufferUpdate();
 782                                 break;
 783                         }
 784
 785                         // if the cursor cannot be moved up or down do not remove
 786                         // the selection right now, but wait for the next dispatch.
 787                         if (select)
 788                                 needsUpdate |= cur.selHandle(select);
 789                         cur.upDownInText(up, needsUpdate);
 790                         cur.undispatched();
 791                 }
 792
 793                 break;
 794         }
 795
 796         case LFUN_PARAGRAPH_UP:
 797         case LFUN_PARAGRAPH_UP_SELECT:
 798                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_PARAGRAPH_UP_SELECT);
 799                 needsUpdate |= cursorUpParagraph(cur);
 800                 break;
 801
 802         case LFUN_PARAGRAPH_DOWN:
 803         case LFUN_PARAGRAPH_DOWN_SELECT:
 804                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_PARAGRAPH_DOWN_SELECT);
 805                 needsUpdate |= cursorDownParagraph(cur);
 806                 break;
 807
 808         case LFUN_LINE_BEGIN:
 809         case LFUN_LINE_BEGIN_SELECT:
 810                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_LINE_BEGIN_SELECT);
 811                 needsUpdate |= tm->cursorHome(cur);
 812                 break;
 813
 814         case LFUN_LINE_END:
 815         case LFUN_LINE_END_SELECT:
 816                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_LINE_END_SELECT);
 817                 needsUpdate |= tm->cursorEnd(cur);
 818                 break;
 819
 820         case LFUN_SECTION_SELECT: {
 821                 Buffer const & buf = *cur.buffer();
 822                 pit_type const pit = cur.pit();
 823                 ParagraphList & pars = buf.text().paragraphs();
 824                 ParagraphList::iterator bgn = pars.begin();
 825                 // The first paragraph of the area to be selected:
 826                 ParagraphList::iterator start = lyx::next(bgn, pit);
 827                 // The final paragraph of area to be selected:
 828                 ParagraphList::iterator finish = start;
 829                 ParagraphList::iterator end = pars.end();
 830
 831                 int const thistoclevel = buf.text().getTocLevel(distance(bgn, start));
 832                 if (thistoclevel == Layout::NOT_IN_TOC)
 833                         break;
 834
 835                 cur.pos() = 0;
 836                 Cursor const old_cur = cur;
 837                 needsUpdate |= cur.selHandle(true);
 838
 839                 // Move out (down) from this section header
 840                 if (finish != end)
 841                         ++finish;
 842
 843                 // Seek the one (on same level) below
 844                 for (; finish != end; ++finish, ++cur.pit()) {
 845                         int const toclevel = buf.text().getTocLevel(distance(bgn, finish));
 846                         if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel)
 847                                 break;
 848                 }
 849                 cur.pos() = cur.lastpos();
 850                 cur.boundary(false);
 851                 cur.setCurrentFont();
 852
 853                 needsUpdate |= cur != old_cur;
 854                 break;
 855         }
 856
 857         case LFUN_WORD_RIGHT:
 858         case LFUN_WORD_RIGHT_SELECT:
 859                 if (lyxrc.visual_cursor) {
 860                         needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_RIGHT_SELECT);
 861                         bool const cur_moved = cursorVisRightOneWord(cur);
 862                         needsUpdate |= cur_moved;
 863                         if (!cur_moved && oldTopSlice == cur.top()
 864                                        && cur.boundary() == oldBoundary) {
 865                                 cur.undispatched();
 866                                 cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 867                         }
 868                 } else {
 869                         if (cur.reverseDirectionNeeded()) {
 870                                 cmd.setAction(cmd.action() == LFUN_WORD_RIGHT_SELECT ?
 871                                                 LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD);
 872                         } else {
 873                                 cmd.setAction(cmd.action() == LFUN_WORD_RIGHT_SELECT ?
 874                                                 LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD);
 875                         }
 876                         dispatch(cur, cmd);
 877                         return;
 878                 }
 879                 break;
 880
 881         case LFUN_WORD_FORWARD:
 882         case LFUN_WORD_FORWARD_SELECT: {
 883                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_FORWARD_SELECT);
 884                 bool const cur_moved = cursorForwardOneWord(cur);
 885                 needsUpdate |= cur_moved;
 886
 887                 if (!cur_moved && oldTopSlice == cur.top()
 888                                && cur.boundary() == oldBoundary) {
 889                         cur.undispatched();
 890                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 891
 892                         // we will probably be moving out the inset, so we should execute
 893                         // the depm-mechanism, but only when the cursor has a place to
 894                         // go outside this inset, i.e. in a slice above.
 895                         if (cur.depth() > 1 && cur.pos() == cur.lastpos()
 896                                   && cur.pit() == cur.lastpit()) {
 897                                 // The cursor hasn't changed yet. To give the
 898                                 // DEPM the possibility of doing something we must
 899                                 // provide it with two different cursors.
 900                                 Cursor dummy = cur;
 901                                 dummy.pos() = dummy.pit() = 0;
 902                                 if (cur.bv().checkDepm(dummy, cur))
 903                                         cur.forceBufferUpdate();
 904                         }
 905                 }
 906                 break;
 907         }
 908
 909         case LFUN_WORD_LEFT:
 910         case LFUN_WORD_LEFT_SELECT:
 911                 if (lyxrc.visual_cursor) {
 912                         needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_LEFT_SELECT);
 913                         bool const cur_moved = cursorVisLeftOneWord(cur);
 914                         needsUpdate |= cur_moved;
 915                         if (!cur_moved && oldTopSlice == cur.top()
 916                                        && cur.boundary() == oldBoundary) {
 917                                 cur.undispatched();
 918                                 cmd = FuncRequest(LFUN_FINISHED_LEFT);
 919                         }
 920                 } else {
 921                         if (cur.reverseDirectionNeeded()) {
 922                                 cmd.setAction(cmd.action() == LFUN_WORD_LEFT_SELECT ?
 923                                                 LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD);
 924                         } else {
 925                                 cmd.setAction(cmd.action() == LFUN_WORD_LEFT_SELECT ?
 926                                                 LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD);
 927                         }
 928                         dispatch(cur, cmd);
 929                         return;
 930                 }
 931                 break;
 932
 933         case LFUN_WORD_BACKWARD:
 934         case LFUN_WORD_BACKWARD_SELECT: {
 935                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_BACKWARD_SELECT);
 936                 bool const cur_moved = cursorBackwardOneWord(cur);
 937                 needsUpdate |= cur_moved;
 938
 939                 if (!cur_moved && oldTopSlice == cur.top()
 940                                && cur.boundary() == oldBoundary) {
 941                         cur.undispatched();
 942                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
 943
 944                         // we will probably be moving out the inset, so we should execute
 945                         // the depm-mechanism, but only when the cursor has a place to
 946                         // go outside this inset, i.e. in a slice above.
 947                         if (cur.depth() > 1 && cur.pos() == 0
 948                                   && cur.pit() == 0) {
 949                                 // The cursor hasn't changed yet. To give the
 950                                 // DEPM the possibility of doing something we must
 951                                 // provide it with two different cursors.
 952                                 Cursor dummy = cur;
 953                                 dummy.pos() = cur.lastpos();
 954                                 dummy.pit() = cur.lastpit();
 955                                 if (cur.bv().checkDepm(dummy, cur))
 956                                         cur.forceBufferUpdate();
 957                         }
 958                 }
 959                 break;
 960         }
 961
 962         case LFUN_WORD_SELECT: {
 963                 selectWord(cur, WHOLE_WORD);
 964                 finishChange(cur, true);
 965                 break;
 966         }
 967
 968         case LFUN_NEWLINE_INSERT: {
 969                 InsetNewlineParams inp;
 970                 docstring arg = cmd.argument();
 971                 if (arg == "linebreak")
 972                         inp.kind = InsetNewlineParams::LINEBREAK;
 973                 else
 974                         inp.kind = InsetNewlineParams::NEWLINE;
 975                 cap::replaceSelection(cur);
 976                 cur.recordUndo();
 977                 cur.insert(new InsetNewline(inp));
 978                 cur.posForward();
 979                 moveCursor(cur, false);
 980                 break;
 981         }
 982
 983         case LFUN_TAB_INSERT: {
 984                 bool const multi_par_selection = cur.selection() &&
 985                         cur.selBegin().pit() != cur.selEnd().pit();
 986                 if (multi_par_selection) {
 987                         // If there is a multi-paragraph selection, a tab is inserted
 988                         // at the beginning of each paragraph.
 989                         cur.recordUndoSelection();
 990                         pit_type const pit_end = cur.selEnd().pit();
 991                         for (pit_type pit = cur.selBegin().pit(); pit <= pit_end; pit++) {
 992                                 pars_[pit].insertChar(0, '\t',
 993                                                       bv->buffer().params().track_changes);
 994                                 // Update the selection pos to make sure the selection does not
 995                                 // change as the inserted tab will increase the logical pos.
 996                                 if (cur.realAnchor().pit() == pit)
 997                                         cur.realAnchor().forwardPos();
 998                                 if (cur.pit() == pit)
 999                                         cur.forwardPos();
1000                         }
1001                         cur.finishUndo();
1002                 } else {
1003                         // Maybe we shouldn't allow tabs within a line, because they
1004                         // are not (yet) aligned as one might do expect.
1005                         FuncRequest cmd(LFUN_SELF_INSERT, from_ascii("\t"));
1006                         dispatch(cur, cmd);
1007                 }
1008                 break;
1009         }
1010
1011         case LFUN_TAB_DELETE: {
1012                 bool const tc = bv->buffer().params().track_changes;
1013                 if (cur.selection()) {
1014                         // If there is a selection, a tab (if present) is removed from
1015                         // the beginning of each paragraph.
1016                         cur.recordUndoSelection();
1017                         pit_type const pit_end = cur.selEnd().pit();
1018                         for (pit_type pit = cur.selBegin().pit(); pit <= pit_end; pit++) {
1019                                 Paragraph & par = paragraphs()[pit];
1020                                 if (par.empty())
1021                                         continue;
1022                                 char_type const c = par.getChar(0);
1023                                 if (c == '\t' || c == ' ') {
1024                                         // remove either 1 tab or 4 spaces.
1025                                         int const n = (c == ' ' ? 4 : 1);
1026                                         for (int i = 0; i < n
1027                                                   && !par.empty() && par.getChar(0) == c; ++i) {
1028                                                 if (cur.pit() == pit)
1029                                                         cur.posBackward();
1030                                                 if (cur.realAnchor().pit() == pit
1031                                                           && cur.realAnchor().pos() > 0 )
1032                                                         cur.realAnchor().backwardPos();
1033                                                 par.eraseChar(0, tc);
1034                                         }
1035                                 }
1036                         }
1037                         cur.finishUndo();
1038                 } else {
1039                         // If there is no selection, try to remove a tab or some spaces
1040                         // before the position of the cursor.
1041                         Paragraph & par = paragraphs()[cur.pit()];
1042                         pos_type const pos = cur.pos();
1043
1044                         if (pos == 0)
1045                                 break;
1046
1047                         char_type const c = par.getChar(pos - 1);
1048                         cur.recordUndo();
1049                         if (c == '\t') {
1050                                 cur.posBackward();
1051                                 par.eraseChar(cur.pos(), tc);
1052                         } else
1053                                 for (int n_spaces = 0;
1054                                      cur.pos() > 0
1055                                              && par.getChar(cur.pos() - 1) == ' '
1056                                              && n_spaces < 4;
1057                                      ++n_spaces) {
1058                                         cur.posBackward();
1059                                         par.eraseChar(cur.pos(), tc);
1060                                 }
1061                         cur.finishUndo();
1062                 }
1063                 break;
1064         }
1065
1066         case LFUN_CHAR_DELETE_FORWARD:
1067                 if (!cur.selection()) {
1068                         if (cur.pos() == cur.paragraph().size())
1069                                 // Par boundary, force full-screen update
1070                                 singleParUpdate = false;
1071                         else if (cmd.getArg(0) != "force" && cur.confirmDeletion()) {
1072                                 cur.resetAnchor();
1073                                 cur.selection(true);
1074                                 cur.posForward();
1075                                 cur.setSelection();
1076                                 break;
1077                         }
1078                         needsUpdate |= erase(cur);
1079                         cur.resetAnchor();
1080                 } else {
1081                         cutSelection(cur, true, false);
1082                         singleParUpdate = false;
1083                 }
1084                 moveCursor(cur, false);
1085                 break;
1086
1087         case LFUN_CHAR_DELETE_BACKWARD:
1088                 if (!cur.selection()) {
1089                         if (bv->getIntl().getTransManager().backspace()) {
1090                                 bool par_boundary = cur.pos() == 0;
1091                                 bool first_par = cur.pit() == 0;
1092                                 // Par boundary, full-screen update
1093                                 if (par_boundary)
1094                                         singleParUpdate = false;
1095                                 else if (cmd.getArg(0) != "force" && cur.confirmDeletion(true)) {
1096                                         cur.resetAnchor();
1097                                         cur.selection(true);
1098                                         cur.posBackward();
1099                                         cur.setSelection();
1100                                         break;
1101                                 }
1102                                 needsUpdate |= backspace(cur);
1103                                 cur.resetAnchor();
1104                                 if (par_boundary && !first_par && cur.pos() > 0
1105                                     && cur.paragraph().isEnvSeparator(cur.pos() - 1)) {
1106                                         needsUpdate |= backspace(cur);
1107                                         cur.resetAnchor();
1108                                 }
1109                         }
1110                 } else {
1111                         cutSelection(cur, true, false);
1112                         singleParUpdate = false;
1113                 }
1114                 break;
1115
1116         case LFUN_PARAGRAPH_BREAK: {
1117                 cap::replaceSelection(cur);
1118                 pit_type pit = cur.pit();
1119                 Paragraph const & par = pars_[pit];
1120                 bool lastpar = (pit == pit_type(pars_.size() - 1));
1121                 Paragraph const & nextpar = lastpar ? par : pars_[pit + 1];
1122                 pit_type prev = pit > 0 ? depthHook(pit, par.getDepth()) : pit;
1123                 if (prev < pit && cur.pos() == par.beginOfBody()
1124                     && !par.size() && !par.isEnvSeparator(cur.pos())
1125                     && !par.layout().isCommand()
1126                     && pars_[prev].layout() != par.layout()
1127                     && pars_[prev].layout().isEnvironment()
1128                     && !nextpar.isEnvSeparator(nextpar.beginOfBody())) {
1129                         if (par.layout().isEnvironment()
1130                             && pars_[prev].getDepth() == par.getDepth()) {
1131                                 docstring const layout = par.layout().name();
1132                                 DocumentClass const & tc = bv->buffer().params().documentClass();
1133                                 lyx::dispatch(FuncRequest(LFUN_LAYOUT, tc.plainLayout().name()));
1134                                 lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "plain"));
1135                                 lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse"));
1136                                 lyx::dispatch(FuncRequest(LFUN_LAYOUT, layout));
1137                         } else {
1138                                 lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "plain"));
1139                                 breakParagraph(cur);
1140                         }
1141                         Font const f(inherit_font, cur.current_font.language());
1142                         pars_[cur.pit() - 1].resetFonts(f);
1143                 } else {
1144                         if (par.isEnvSeparator(cur.pos()) && cmd.getArg(1) != "ignoresep")
1145                                 cur.posForward();
1146                         breakParagraph(cur, cmd.getArg(0) == "inverse");
1147                 }
1148                 cur.resetAnchor();
1149                 // If we have a list and autoinsert item insets,
1150                 // insert them now.
1151                 Layout::LaTeXArgMap args = par.layout().args();
1152                 Layout::LaTeXArgMap::const_iterator lait = args.begin();
1153                 Layout::LaTeXArgMap::const_iterator const laend = args.end();
1154                 for (; lait != laend; ++lait) {
1155                         Layout::latexarg arg = (*lait).second;
1156                         if (arg.autoinsert && prefixIs((*lait).first, "item:")) {
1157                                 FuncRequest cmd(LFUN_ARGUMENT_INSERT, (*lait).first);
1158                                 lyx::dispatch(cmd);
1159                         }
1160                 }
1161                 break;
1162         }
1163
1164         case LFUN_INSET_INSERT: {
1165                 cur.recordUndo();
1166
1167                 // We have to avoid triggering InstantPreview loading
1168                 // before inserting into the document. See bug #5626.
1169                 bool loaded = bv->buffer().isFullyLoaded();
1170                 bv->buffer().setFullyLoaded(false);
1171                 Inset * inset = createInset(&bv->buffer(), cmd);
1172                 bv->buffer().setFullyLoaded(loaded);
1173
1174                 if (inset) {
1175                         // FIXME (Abdel 01/02/2006):
1176                         // What follows would be a partial fix for bug 2154:
1177                         //   http://www.lyx.org/trac/ticket/2154
1178                         // This automatically put the label inset _after_ a
1179                         // numbered section. It should be possible to extend the mechanism
1180                         // to any kind of LateX environement.
1181                         // The correct way to fix that bug would be at LateX generation.
1182                         // I'll let the code here for reference as it could be used for some
1183                         // other feature like "automatic labelling".
1184                         /*
1185                         Paragraph & par = pars_[cur.pit()];
1186                         if (inset->lyxCode() == LABEL_CODE
1187                                 && !par.layout().counter.empty()) {
1188                                 // Go to the end of the paragraph
1189                                 // Warning: Because of Change-Tracking, the last
1190                                 // position is 'size()' and not 'size()-1':
1191                                 cur.pos() = par.size();
1192                                 // Insert a new paragraph
1193                                 FuncRequest fr(LFUN_PARAGRAPH_BREAK);
1194                                 dispatch(cur, fr);
1195                         }
1196                         */
1197                         if (cur.selection())
1198                                 cutSelection(cur, true, false);
1199                         cur.insert(inset);
1200                         if (inset->editable() && inset->asInsetText())
1201                                 inset->edit(cur, true);
1202                         else
1203                                 cur.posForward();
1204
1205                         // trigger InstantPreview now
1206                         if (inset->lyxCode() == EXTERNAL_CODE) {
1207                                 InsetExternal & ins =
1208                                         static_cast<InsetExternal &>(*inset);
1209                                 ins.updatePreview();
1210                         }
1211                 }
1212
1213                 break;
1214         }
1215
1216         case LFUN_INSET_DISSOLVE: {
1217                 if (dissolveInset(cur)) {
1218                         needsUpdate = true;
1219                         cur.forceBufferUpdate();
1220                 }
1221                 break;
1222         }
1223
1224         case LFUN_SET_GRAPHICS_GROUP: {
1225                 InsetGraphics * ins = graphics::getCurrentGraphicsInset(cur);
1226                 if (!ins)
1227                         break;
1228
1229                 cur.recordUndo();
1230
1231                 string id = to_utf8(cmd.argument());
1232                 string grp = graphics::getGroupParams(bv->buffer(), id);
1233                 InsetGraphicsParams tmp, inspar = ins->getParams();
1234
1235                 if (id.empty())
1236                         inspar.groupId = to_utf8(cmd.argument());
1237                 else {
1238                         InsetGraphics::string2params(grp, bv->buffer(), tmp);
1239                         tmp.filename = inspar.filename;
1240                         inspar = tmp;
1241                 }
1242
1243                 ins->setParams(inspar);
1244                 break;
1245         }
1246
1247         case LFUN_SPACE_INSERT:
1248                 if (cur.paragraph().layout().free_spacing)
1249                         insertChar(cur, ' ');
1250                 else {
1251                         doInsertInset(cur, this, cmd, false, false);
1252                         cur.posForward();
1253                 }
1254                 moveCursor(cur, false);
1255                 break;
1256
1257         case LFUN_SPECIALCHAR_INSERT: {
1258                 string const name = to_utf8(cmd.argument());
1259                 if (name == "hyphenation")
1260                         specialChar(cur, InsetSpecialChar::HYPHENATION);
1261                 else if (name == "allowbreak")
1262                         specialChar(cur, InsetSpecialChar::ALLOWBREAK);
1263                 else if (name == "ligature-break")
1264                         specialChar(cur, InsetSpecialChar::LIGATURE_BREAK);
1265                 else if (name == "slash")
1266                         specialChar(cur, InsetSpecialChar::SLASH);
1267                 else if (name == "nobreakdash")
1268                         specialChar(cur, InsetSpecialChar::NOBREAKDASH);
1269                 else if (name == "dots")
1270                         specialChar(cur, InsetSpecialChar::LDOTS);
1271                 else if (name == "end-of-sentence")
1272                         specialChar(cur, InsetSpecialChar::END_OF_SENTENCE);
1273                 else if (name == "menu-separator")
1274                         specialChar(cur, InsetSpecialChar::MENU_SEPARATOR);
1275                 else if (name == "lyx")
1276                         specialChar(cur, InsetSpecialChar::PHRASE_LYX);
1277                 else if (name == "tex")
1278                         specialChar(cur, InsetSpecialChar::PHRASE_TEX);
1279                 else if (name == "latex")
1280                         specialChar(cur, InsetSpecialChar::PHRASE_LATEX);
1281                 else if (name == "latex2e")
1282                         specialChar(cur, InsetSpecialChar::PHRASE_LATEX2E);
1283                 else if (name.empty())
1284                         lyxerr << "LyX function 'specialchar-insert' needs an argument." << endl;
1285                 else
1286                         lyxerr << "Wrong argument for LyX function 'specialchar-insert'." << endl;
1287                 break;
1288         }
1289
1290         case LFUN_IPAMACRO_INSERT: {
1291                 string const arg = cmd.getArg(0);
1292                 if (arg == "deco") {
1293                         // Open the inset, and move the current selection
1294                         // inside it.
1295                         doInsertInset(cur, this, cmd, true, true);
1296                         cur.posForward();
1297                         // Some insets are numbered, others are shown in the outline pane so
1298                         // let's update the labels and the toc backend.
1299                         cur.forceBufferUpdate();
1300                         break;
1301                 }
1302                 if (arg == "tone-falling")
1303                         ipaChar(cur, InsetIPAChar::TONE_FALLING);
1304                 else if (arg == "tone-rising")
1305                         ipaChar(cur, InsetIPAChar::TONE_RISING);
1306                 else if (arg == "tone-high-rising")
1307                         ipaChar(cur, InsetIPAChar::TONE_HIGH_RISING);
1308                 else if (arg == "tone-low-rising")
1309                         ipaChar(cur, InsetIPAChar::TONE_LOW_RISING);
1310                 else if (arg == "tone-high-rising-falling")
1311                         ipaChar(cur, InsetIPAChar::TONE_HIGH_RISING_FALLING);
1312                 else if (arg.empty())
1313                         lyxerr << "LyX function 'ipamacro-insert' needs an argument." << endl;
1314                 else
1315                         lyxerr << "Wrong argument for LyX function 'ipamacro-insert'." << endl;
1316                 break;
1317         }
1318
1319         case LFUN_WORD_UPCASE:
1320                 changeCase(cur, text_uppercase, cmd.getArg(0) == "partial");
1321                 break;
1322
1323         case LFUN_WORD_LOWCASE:
1324                 changeCase(cur, text_lowercase, cmd.getArg(0) == "partial");
1325                 break;
1326
1327         case LFUN_WORD_CAPITALIZE:
1328                 changeCase(cur, text_capitalization, cmd.getArg(0) == "partial");
1329                 break;
1330
1331         case LFUN_CHARS_TRANSPOSE:
1332                 charsTranspose(cur);
1333                 break;
1334
1335         case LFUN_PASTE: {
1336                 cur.message(_("Paste"));
1337                 LASSERT(cur.selBegin().idx() == cur.selEnd().idx(), break);
1338                 cap::replaceSelection(cur);
1339
1340                 // without argument?
1341                 string const arg = to_utf8(cmd.argument());
1342                 if (arg.empty()) {
1343                         bool tryGraphics = true;
1344                         if (theClipboard().isInternal())
1345                                 pasteFromStack(cur, bv->buffer().errorList("Paste"), 0);
1346                         else if (theClipboard().hasTextContents()) {
1347                                 if (pasteClipboardText(cur, bv->buffer().errorList("Paste"),
1348                                                        true, Clipboard::AnyTextType))
1349                                         tryGraphics = false;
1350                         }
1351                         if (tryGraphics && theClipboard().hasGraphicsContents())
1352                                 pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"));
1353                 } else if (isStrUnsignedInt(arg)) {
1354                         // we have a numerical argument
1355                         pasteFromStack(cur, bv->buffer().errorList("Paste"),
1356                                        convert<unsigned int>(arg));
1357                 } else if (arg == "html" || arg == "latex") {
1358                         Clipboard::TextType type = (arg == "html") ?
1359                                 Clipboard::HtmlTextType : Clipboard::LaTeXTextType;
1360                         pasteClipboardText(cur, bv->buffer().errorList("Paste"), true, type);
1361                 } else {
1362                         Clipboard::GraphicsType type = Clipboard::AnyGraphicsType;
1363                         if (arg == "pdf")
1364                                 type = Clipboard::PdfGraphicsType;
1365                         else if (arg == "png")
1366                                 type = Clipboard::PngGraphicsType;
1367                         else if (arg == "jpeg")
1368                                 type = Clipboard::JpegGraphicsType;
1369                         else if (arg == "linkback")
1370                                 type = Clipboard::LinkBackGraphicsType;
1371                         else if (arg == "emf")
1372                                 type = Clipboard::EmfGraphicsType;
1373                         else if (arg == "wmf")
1374                                 type = Clipboard::WmfGraphicsType;
1375                         else
1376                                 // we also check in getStatus()
1377                                 LYXERR0("Unrecognized graphics type: " << arg);
1378
1379                         pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"), type);
1380                 }
1381
1382                 bv->buffer().errors("Paste");
1383                 cur.clearSelection(); // bug 393
1384                 cur.finishUndo();
1385                 break;
1386         }
1387
1388         case LFUN_CUT:
1389                 cutSelection(cur, true, true);
1390                 cur.message(_("Cut"));
1391                 break;
1392
1393         case LFUN_COPY:
1394                 copySelection(cur);
1395                 cur.message(_("Copy"));
1396                 break;
1397
1398         case LFUN_SERVER_GET_XY:
1399                 cur.message(from_utf8(
1400                         convert<string>(tm->cursorX(cur.top(), cur.boundary()))
1401                         + ' ' + convert<string>(tm->cursorY(cur.top(), cur.boundary()))));
1402                 break;
1403
1404         case LFUN_SERVER_SET_XY: {
1405                 int x = 0;
1406                 int y = 0;
1407                 istringstream is(to_utf8(cmd.argument()));
1408                 is >> x >> y;
1409                 if (!is)
1410                         lyxerr << "SETXY: Could not parse coordinates in '"
1411                                << to_utf8(cmd.argument()) << endl;
1412                 else
1413                         tm->setCursorFromCoordinates(cur, x, y);
1414                 break;
1415         }
1416
1417         case LFUN_SERVER_GET_LAYOUT:
1418                 cur.message(cur.paragraph().layout().name());
1419                 break;
1420
1421         case LFUN_LAYOUT: {
1422                 bool const ignorenests = cmd.getArg(1) == "ignorenests";
1423                 docstring layout = ignorenests ? from_utf8(cmd.getArg(0)) : cmd.argument();
1424                 LYXERR(Debug::INFO, "LFUN_LAYOUT: (arg) " << to_utf8(layout));
1425
1426                 Paragraph const & para = cur.paragraph();
1427                 docstring const old_layout = para.layout().name();
1428                 set<docstring> nests = para.layout().nests();
1429                 DocumentClass const & tclass = bv->buffer().params().documentClass();
1430
1431                 if (layout.empty())
1432                         layout = tclass.defaultLayoutName();
1433
1434                 if (owner_->forcePlainLayout())
1435                         // in this case only the empty layout is allowed
1436                         layout = tclass.plainLayoutName();
1437                 else if (para.usePlainLayout()) {
1438                         // in this case, default layout maps to empty layout
1439                         if (layout == tclass.defaultLayoutName())
1440                                 layout = tclass.plainLayoutName();
1441                 } else {
1442                         // otherwise, the empty layout maps to the default
1443                         if (layout == tclass.plainLayoutName())
1444                                 layout = tclass.defaultLayoutName();
1445                 }
1446
1447                 bool hasLayout = tclass.hasLayout(layout);
1448
1449                 // If the entry is obsolete, use the new one instead.
1450                 if (hasLayout) {
1451                         docstring const & obs = tclass[layout].obsoleted_by();
1452                         if (!obs.empty())
1453                                 layout = obs;
1454                 }
1455
1456                 if (!hasLayout) {
1457                         cur.errorMessage(from_utf8(N_("Layout ")) + cmd.argument() +
1458                                 from_utf8(N_(" not known")));
1459                         break;
1460                 }
1461
1462                 bool change_layout = (old_layout != layout);
1463
1464                 if (!change_layout && cur.selection() &&
1465                         cur.selBegin().pit() != cur.selEnd().pit())
1466                 {
1467                         pit_type spit = cur.selBegin().pit();
1468                         pit_type epit = cur.selEnd().pit() + 1;
1469                         while (spit != epit) {
1470                                 if (pars_[spit].layout().name() != old_layout) {
1471                                         change_layout = true;
1472                                         break;
1473                                 }
1474                                 ++spit;
1475                         }
1476                 }
1477
1478                 if (change_layout) {
1479                         setLayout(cur, layout);
1480                         bool do_nest = false;
1481                         if (cur.pit() > 0 && pars_[cur.pit() - 1].layout().name() == old_layout)
1482                                 do_nest = !ignorenests;
1483                         if (do_nest && nests.find(layout) != nests.end())
1484                                 lyx::dispatch(FuncRequest(LFUN_DEPTH_INCREMENT));
1485                 }
1486
1487                 Layout::LaTeXArgMap args = tclass[layout].args();
1488                 Layout::LaTeXArgMap::const_iterator lait = args.begin();
1489                 Layout::LaTeXArgMap::const_iterator const laend = args.end();
1490                 for (; lait != laend; ++lait) {
1491                         Layout::latexarg arg = (*lait).second;
1492                         if (arg.autoinsert) {
1493                                 FuncRequest cmd(LFUN_ARGUMENT_INSERT, (*lait).first);
1494                                 lyx::dispatch(cmd);
1495                         }
1496                 }
1497
1498                 break;
1499         }
1500
1501         case LFUN_ENVIRONMENT_SPLIT: {
1502                 bool const outer = cmd.argument() == "outer";
1503                 bool const previous = cmd.argument() == "previous";
1504                 bool const before = cmd.argument() == "before";
1505                 Paragraph const & para = cur.paragraph();
1506                 docstring layout;
1507                 if (para.layout().isEnvironment())
1508                         layout = para.layout().name();
1509                 depth_type split_depth = cur.paragraph().params().depth();
1510                 if (outer || previous) {
1511                         // check if we have an environment in our scope
1512                         pit_type pit = cur.pit();
1513                         Paragraph cpar = pars_[pit];
1514                         while (true) {
1515                                 if (pit == 0)
1516                                         break;
1517                                 --pit;
1518                                 cpar = pars_[pit];
1519                                 if (layout.empty() && previous
1520                                     && cpar.layout().isEnvironment()
1521                                     && cpar.params().depth() <= split_depth)
1522                                         layout = cpar.layout().name();
1523                                 if (cpar.params().depth() < split_depth
1524                                     && cpar.layout().isEnvironment()) {
1525                                                 if (!previous)
1526                                                         layout = cpar.layout().name();
1527                                                 split_depth = cpar.params().depth();
1528                                 }
1529                                 if (cpar.params().depth() == 0)
1530                                         break;
1531                         }
1532                 }
1533                 if (before)
1534                         cur.top().setPitPos(cur.pit(), 0);
1535                 if (before || cur.pos() > 0)
1536                         lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK));
1537                 if (outer) {
1538                         while (cur.paragraph().params().depth() > split_depth)
1539                                 lyx::dispatch(FuncRequest(LFUN_DEPTH_DECREMENT));
1540                 }
1541                 DocumentClass const & tc = bv->buffer().params().documentClass();
1542                 lyx::dispatch(FuncRequest(LFUN_LAYOUT, from_ascii("\"") + tc.plainLayout().name()
1543                                           + from_ascii("\" ignorenests")));
1544                 lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "plain"));
1545                 if (before) {
1546                         cur.backwardPos();
1547                         lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse ignoresep"));
1548                         while (cur.paragraph().params().depth() < split_depth)
1549                                 lyx::dispatch(FuncRequest(LFUN_DEPTH_INCREMENT));
1550                 }
1551                 else
1552                         lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse"));
1553                 lyx::dispatch(FuncRequest(LFUN_LAYOUT, layout));
1554
1555                 break;
1556         }
1557
1558         case LFUN_CLIPBOARD_PASTE:
1559                 cap::replaceSelection(cur);
1560                 pasteClipboardText(cur, bv->buffer().errorList("Paste"),
1561                                cmd.argument() == "paragraph");
1562                 bv->buffer().errors("Paste");
1563                 break;
1564
1565         case LFUN_CLIPBOARD_PASTE_SIMPLE:
1566                 cap::replaceSelection(cur);
1567                 pasteSimpleText(cur, cmd.argument() == "paragraph");
1568                 break;
1569
1570         case LFUN_PRIMARY_SELECTION_PASTE:
1571                 cap::replaceSelection(cur);
1572                 pasteString(cur, theSelection().get(),
1573                             cmd.argument() == "paragraph");
1574                 break;
1575
1576         case LFUN_SELECTION_PASTE:
1577                 // Copy the selection buffer to the clipboard stack,
1578                 // because we want it to appear in the "Edit->Paste
1579                 // recent" menu.
1580                 cap::replaceSelection(cur);
1581                 cap::copySelectionToStack();
1582                 cap::pasteSelection(bv->cursor(), bv->buffer().errorList("Paste"));
1583                 bv->buffer().errors("Paste");
1584                 break;
1585
1586         case LFUN_UNICODE_INSERT: {
1587                 if (cmd.argument().empty())
1588                         break;
1589                 docstring hexstring = cmd.argument();
1590                 if (isHex(hexstring)) {
1591                         char_type c = hexToInt(hexstring);
1592                         if (c >= 32 && c < 0x10ffff) {
1593                                 lyxerr << "Inserting c: " << c << endl;
1594                                 docstring s = docstring(1, c);
1595                                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, s));
1596                         }
1597                 }
1598                 break;
1599         }
1600
1601         case LFUN_QUOTE_INSERT: {
1602                 cap::replaceSelection(cur);
1603                 cur.recordUndo();
1604
1605                 Paragraph const & par = cur.paragraph();
1606                 pos_type pos = cur.pos();
1607                 // Ignore deleted text before cursor
1608                 while (pos > 0 && par.isDeleted(pos - 1))
1609                         --pos;
1610
1611                 bool const inner = (cmd.getArg(0) == "single" || cmd.getArg(0) == "inner");
1612
1613                 // Guess quote side.
1614                 // A space triggers an opening quote. This is passed if the preceding
1615                 // char/inset is a space or at paragraph start.
1616                 char_type c = ' ';
1617                 if (pos > 0 && !par.isSpace(pos - 1)) {
1618                         if (cur.prevInset() && cur.prevInset()->lyxCode() == QUOTE_CODE) {
1619                                 // If an opening double quotation mark precedes, and this
1620                                 // is a single quote, make it opening as well
1621                                 InsetQuotes & ins =
1622                                         static_cast<InsetQuotes &>(*cur.prevInset());
1623                                 string const type = ins.getType();
1624                                 if (!suffixIs(type, "ld") || !inner)
1625                                         c = par.getChar(pos - 1);
1626                         }
1627                         else if (!cur.prevInset()
1628                             || (cur.prevInset() && cur.prevInset()->isChar()))
1629                                 // If a char precedes, pass that and let InsetQuote decide
1630                                 c = par.getChar(pos - 1);
1631                         else {
1632                                 while (pos > 0) {
1633                                         if (par.getInset(pos - 1)
1634                                             && !par.getInset(pos - 1)->isPartOfTextSequence()) {
1635                                                 // skip "invisible" insets
1636                                                 --pos;
1637                                                 continue;
1638                                         }
1639                                         c = par.getChar(pos - 1);
1640                                         break;
1641                                 }
1642                         }
1643                 }
1644                 InsetQuotesParams::QuoteLevel const quote_level = inner
1645                                 ? InsetQuotesParams::SecondaryQuotes : InsetQuotesParams::PrimaryQuotes;
1646                 cur.insert(new InsetQuotes(cur.buffer(), c, quote_level, cmd.getArg(1), cmd.getArg(2)));
1647                 cur.buffer()->updateBuffer();
1648                 cur.posForward();
1649                 break;
1650         }
1651
1652         case LFUN_DATE_INSERT: {
1653                 string const format = cmd.argument().empty()
1654                         ? lyxrc.date_insert_format : to_utf8(cmd.argument());
1655                 string const time = formatted_time(current_time(), format);
1656                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, time));
1657                 break;
1658         }
1659
1660         case LFUN_MOUSE_TRIPLE:
1661                 if (cmd.button() == mouse_button::button1) {
1662                         tm->cursorHome(cur);
1663                         cur.resetAnchor();
1664                         tm->cursorEnd(cur);
1665                         cur.setSelection();
1666                         bv->cursor() = cur;
1667                 }
1668                 break;
1669
1670         case LFUN_MOUSE_DOUBLE:
1671                 if (cmd.button() == mouse_button::button1) {
1672                         selectWord(cur, WHOLE_WORD);
1673                         bv->cursor() = cur;
1674                 }
1675                 break;
1676
1677         // Single-click on work area
1678         case LFUN_MOUSE_PRESS: {
1679                 // We are not marking a selection with the keyboard in any case.
1680                 Cursor & bvcur = cur.bv().cursor();
1681                 bvcur.setMark(false);
1682                 switch (cmd.button()) {
1683                 case mouse_button::button1:
1684                         if (!bvcur.selection())
1685                                 // Set the cursor
1686                                 bvcur.resetAnchor();
1687                         if (!bv->mouseSetCursor(cur, cmd.modifier() == ShiftModifier))
1688                                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1689                         if (bvcur.wordSelection())
1690                                 selectWord(bvcur, WHOLE_WORD);
1691                         break;
1692
1693                 case mouse_button::button2:
1694                         if (lyxrc.mouse_middlebutton_paste) {
1695                                 // Middle mouse pasting.
1696                                 bv->mouseSetCursor(cur);
1697                                 lyx::dispatch(
1698                                         FuncRequest(LFUN_COMMAND_ALTERNATIVES,
1699                                                     "selection-paste ; primary-selection-paste paragraph"));
1700                         }
1701                         cur.noScreenUpdate();
1702                         break;
1703
1704                 case mouse_button::button3: {
1705                         // Don't do anything if we right-click a
1706                         // selection, a context menu will popup.
1707                         if (bvcur.selection() && cur >= bvcur.selectionBegin()
1708                             && cur < bvcur.selectionEnd()) {
1709                                 cur.noScreenUpdate();
1710                                 return;
1711                         }
1712                         if (!bv->mouseSetCursor(cur, false))
1713                                 cur.screenUpdateFlags(Update::FitCursor);
1714                         break;
1715                 }
1716
1717                 default:
1718                         break;
1719                 } // switch (cmd.button())
1720                 break;
1721         }
1722         case LFUN_MOUSE_MOTION: {
1723                 // Mouse motion with right or middle mouse do nothing for now.
1724                 if (cmd.button() != mouse_button::button1) {
1725                         cur.noScreenUpdate();
1726                         return;
1727                 }
1728                 // ignore motions deeper nested than the real anchor
1729                 Cursor & bvcur = cur.bv().cursor();
1730                 if (!bvcur.realAnchor().hasPart(cur)) {
1731                         cur.undispatched();
1732                         break;
1733                 }
1734                 CursorSlice old = bvcur.top();
1735
1736                 int const wh = bv->workHeight();
1737                 int const y = max(0, min(wh - 1, cmd.y()));
1738
1739                 tm->setCursorFromCoordinates(cur, cmd.x(), y);
1740                 cur.setTargetX(cmd.x());
1741                 // Don't allow selecting a separator inset
1742                 if (cur.pos() && cur.paragraph().isEnvSeparator(cur.pos() - 1))
1743                         cur.posBackward();
1744                 if (cmd.y() >= wh)
1745                         lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1746                 else if (cmd.y() < 0)
1747                         lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1748                 // This is to allow jumping over large insets
1749                 if (cur.top() == old) {
1750                         if (cmd.y() >= wh)
1751                                 lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1752                         else if (cmd.y() < 0)
1753                                 lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1754                 }
1755                 // We continue with our existing selection or start a new one, so don't
1756                 // reset the anchor.
1757                 bvcur.setCursor(cur);
1758                 bvcur.selection(true);
1759                 bvcur.setCurrentFont();
1760                 if (cur.top() == old) {
1761                         // We didn't move one iota, so no need to update the screen.
1762                         cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1763                         //cur.noScreenUpdate();
1764                         return;
1765                 }
1766                 break;
1767         }
1768
1769         case LFUN_MOUSE_RELEASE:
1770                 switch (cmd.button()) {
1771                 case mouse_button::button1:
1772                         // Cursor was set at LFUN_MOUSE_PRESS or LFUN_MOUSE_MOTION time.
1773                         // If there is a new selection, update persistent selection;
1774                         // otherwise, single click does not clear persistent selection
1775                         // buffer.
1776                         if (cur.selection()) {
1777                                 // Finish selection. If double click,
1778                                 // cur is moved to the end of word by
1779                                 // selectWord but bvcur is current
1780                                 // mouse position.
1781                                 cur.bv().cursor().setSelection();
1782                                 // We might have removed an empty but drawn selection
1783                                 // (probably a margin)
1784                                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1785                         } else
1786                                 cur.noScreenUpdate();
1787                         // FIXME: We could try to handle drag and drop of selection here.
1788                         return;
1789
1790                 case mouse_button::button2:
1791                         // Middle mouse pasting is handled at mouse press time,
1792                         // see LFUN_MOUSE_PRESS.
1793                         cur.noScreenUpdate();
1794                         return;
1795
1796                 case mouse_button::button3:
1797                         // Cursor was set at LFUN_MOUSE_PRESS time.
1798                         // FIXME: If there is a selection we could try to handle a special
1799                         // drag & drop context menu.
1800                         cur.noScreenUpdate();
1801                         return;
1802
1803                 case mouse_button::none:
1804                 case mouse_button::button4:
1805                 case mouse_button::button5:
1806                         break;
1807                 } // switch (cmd.button())
1808
1809                 break;
1810
1811         case LFUN_SELF_INSERT: {
1812                 if (cmd.argument().empty())
1813                         break;
1814
1815                 // Automatically delete the currently selected
1816                 // text and replace it with what is being
1817                 // typed in now. Depends on lyxrc settings
1818                 // "auto_region_delete", which defaults to
1819                 // true (on).
1820
1821                 if (lyxrc.auto_region_delete && cur.selection())
1822                         cutSelection(cur, false, false);
1823
1824                 cur.clearSelection();
1825
1826                 docstring::const_iterator cit = cmd.argument().begin();
1827                 docstring::const_iterator const end = cmd.argument().end();
1828                 for (; cit != end; ++cit)
1829                         bv->translateAndInsert(*cit, this, cur);
1830
1831                 cur.resetAnchor();
1832                 moveCursor(cur, false);
1833                 cur.markNewWordPosition();
1834                 bv->bookmarkEditPosition();
1835                 break;
1836         }
1837
1838         case LFUN_HREF_INSERT: {
1839                 docstring content = cmd.argument();
1840                 if (content.empty() && cur.selection())
1841                         content = cur.selectionAsString(false);
1842
1843                 InsetCommandParams p(HYPERLINK_CODE);
1844                 if (!content.empty()){
1845                         // if it looks like a link, we'll put it as target,
1846                         // otherwise as name (bug #8792).
1847
1848                         // We can't do:
1849                         //   regex_match(to_utf8(content), matches, link_re)
1850                         // because smatch stores pointers to the substrings rather
1851                         // than making copies of them. And those pointers become
1852                         // invalid after regex_match returns, since it is then
1853                         // being given a temporary object. (Thanks to Georg for
1854                         // figuring that out.)
1855                         regex const link_re("^([a-z]+):.*");
1856                         smatch matches;
1857                         string const c = to_utf8(lowercase(content));
1858
1859                         if (c.substr(0,7) == "mailto:") {
1860                                 p["target"] = content;
1861                                 p["type"] = from_ascii("mailto:");
1862                         } else if (regex_match(c, matches, link_re)) {
1863                                 p["target"] = content;
1864                                 string protocol = matches.str(1);
1865                                 if (protocol == "file")
1866                                         p["type"] = from_ascii("file:");
1867                         } else
1868                                 p["name"] = content;
1869                 }
1870                 string const data = InsetCommand::params2string(p);
1871
1872                 // we need to have a target. if we already have one, then
1873                 // that gets used at the default for the name, too, which
1874                 // is probably what is wanted.
1875                 if (p["target"].empty()) {
1876                         bv->showDialog("href", data);
1877                 } else {
1878                         FuncRequest fr(LFUN_INSET_INSERT, data);
1879                         dispatch(cur, fr);
1880                 }
1881                 break;
1882         }
1883
1884         case LFUN_LABEL_INSERT: {
1885                 InsetCommandParams p(LABEL_CODE);
1886                 // Try to generate a valid label
1887                 p["name"] = (cmd.argument().empty()) ?
1888                         cur.getPossibleLabel() :
1889                         cmd.argument();
1890                 string const data = InsetCommand::params2string(p);
1891
1892                 if (cmd.argument().empty()) {
1893                         bv->showDialog("label", data);
1894                 } else {
1895                         FuncRequest fr(LFUN_INSET_INSERT, data);
1896                         dispatch(cur, fr);
1897                 }
1898                 break;
1899         }
1900
1901         case LFUN_INFO_INSERT: {
1902                 Inset * inset;
1903                 if (cmd.argument().empty() && cur.selection()) {
1904                         // if command argument is empty use current selection as parameter.
1905                         docstring ds = cur.selectionAsString(false);
1906                         cutSelection(cur, true, false);
1907                         FuncRequest cmd0(cmd, ds);
1908                         inset = createInset(cur.buffer(), cmd0);
1909                 } else {
1910                         inset = createInset(cur.buffer(), cmd);
1911                 }
1912                 if (!inset)
1913                         break;
1914                 cur.recordUndo();
1915                 insertInset(cur, inset);
1916                 cur.posForward();
1917                 break;
1918         }
1919         case LFUN_CAPTION_INSERT:
1920         case LFUN_FOOTNOTE_INSERT:
1921         case LFUN_NOTE_INSERT:
1922         case LFUN_BOX_INSERT:
1923         case LFUN_BRANCH_INSERT:
1924         case LFUN_PHANTOM_INSERT:
1925         case LFUN_ERT_INSERT:
1926         case LFUN_LISTING_INSERT:
1927         case LFUN_MARGINALNOTE_INSERT:
1928         case LFUN_ARGUMENT_INSERT:
1929         case LFUN_INDEX_INSERT:
1930         case LFUN_PREVIEW_INSERT:
1931         case LFUN_SCRIPT_INSERT:
1932         case LFUN_IPA_INSERT:
1933                 // Open the inset, and move the current selection
1934                 // inside it.
1935                 doInsertInset(cur, this, cmd, true, true);
1936                 cur.posForward();
1937                 // Some insets are numbered, others are shown in the outline pane so
1938                 // let's update the labels and the toc backend.
1939                 cur.forceBufferUpdate();
1940                 break;
1941
1942         case LFUN_FLEX_INSERT: {
1943                 // Open the inset, and move the current selection
1944                 // inside it.
1945                 bool const sel = cur.selection();
1946                 doInsertInset(cur, this, cmd, true, true);
1947                 // Insert auto-insert arguments
1948                 bool autoargs = false;
1949                 Layout::LaTeXArgMap args = cur.inset().getLayout().latexargs();
1950                 Layout::LaTeXArgMap::const_iterator lait = args.begin();
1951                 Layout::LaTeXArgMap::const_iterator const laend = args.end();
1952                 for (; lait != laend; ++lait) {
1953                         Layout::latexarg arg = (*lait).second;
1954                         if (arg.autoinsert) {
1955                                 // The cursor might have been invalidated by the replaceSelection.
1956                                 cur.buffer()->changed(true);
1957                                 FuncRequest cmd(LFUN_ARGUMENT_INSERT, (*lait).first);
1958                                 lyx::dispatch(cmd);
1959                                 autoargs = true;
1960                         }
1961                 }
1962                 if (!autoargs) {
1963                         if (sel)
1964                                 cur.leaveInset(cur.inset());
1965                         cur.posForward();
1966                 }
1967                 // Some insets are numbered, others are shown in the outline pane so
1968                 // let's update the labels and the toc backend.
1969                 cur.forceBufferUpdate();
1970                 break;
1971         }
1972
1973         case LFUN_TABULAR_INSERT:
1974                 // if there were no arguments, just open the dialog
1975                 if (doInsertInset(cur, this, cmd, false, true))
1976                         cur.posForward();
1977                 else
1978                         bv->showDialog("tabularcreate");
1979
1980                 break;
1981
1982         case LFUN_FLOAT_INSERT:
1983         case LFUN_FLOAT_WIDE_INSERT:
1984         case LFUN_WRAP_INSERT: {
1985                 // will some content be moved into the inset?
1986                 bool const content = cur.selection();
1987                 // does the content consist of multiple paragraphs?
1988                 bool const singlepar = (cur.selBegin().pit() == cur.selEnd().pit());
1989
1990                 doInsertInset(cur, this, cmd, true, true);
1991                 cur.posForward();
1992
1993                 // If some single-par content is moved into the inset,
1994                 // doInsertInset puts the cursor outside the inset.
1995                 // To insert the caption we put it back into the inset.
1996                 // FIXME cleanup doInsertInset to avoid such dances!
1997                 if (content && singlepar)
1998                         cur.backwardPos();
1999
2000                 ParagraphList & pars = cur.text()->paragraphs();
2001
2002                 DocumentClass const & tclass = bv->buffer().params().documentClass();
2003
2004                 // add a separate paragraph for the caption inset
2005                 pars.push_back(Paragraph());
2006                 pars.back().setInsetOwner(&cur.text()->inset());
2007                 pars.back().setPlainOrDefaultLayout(tclass);
2008                 int cap_pit = pars.size() - 1;
2009
2010                 // if an empty inset was created, we create an additional empty
2011                 // paragraph at the bottom so that the user can choose where to put
2012                 // the graphics (or table).
2013                 if (!content) {
2014                         pars.push_back(Paragraph());
2015                         pars.back().setInsetOwner(&cur.text()->inset());
2016                         pars.back().setPlainOrDefaultLayout(tclass);
2017                 }
2018
2019                 // reposition the cursor to the caption
2020                 cur.pit() = cap_pit;
2021                 cur.pos() = 0;
2022                 // FIXME: This Text/Cursor dispatch handling is a mess!
2023                 // We cannot use Cursor::dispatch here it needs access to up to
2024                 // date metrics.
2025                 FuncRequest cmd_caption(LFUN_CAPTION_INSERT);
2026                 doInsertInset(cur, cur.text(), cmd_caption, true, false);
2027                 cur.forceBufferUpdate();
2028                 cur.screenUpdateFlags(Update::Force);
2029                 // FIXME: When leaving the Float (or Wrap) inset we should
2030                 // delete any empty paragraph left above or below the
2031                 // caption.
2032                 break;
2033         }
2034
2035         case LFUN_NOMENCL_INSERT: {
2036                 InsetCommandParams p(NOMENCL_CODE);
2037                 if (cmd.argument().empty())
2038                         p["symbol"] = bv->cursor().innerText()->getStringToIndex(bv->cursor());
2039                 else
2040                         p["symbol"] = cmd.argument();
2041                 string const data = InsetCommand::params2string(p);
2042                 bv->showDialog("nomenclature", data);
2043                 break;
2044         }
2045
2046         case LFUN_INDEX_PRINT: {
2047                 InsetCommandParams p(INDEX_PRINT_CODE);
2048                 if (cmd.argument().empty())
2049                         p["type"] = from_ascii("idx");
2050                 else
2051                         p["type"] = cmd.argument();
2052                 string const data = InsetCommand::params2string(p);
2053                 FuncRequest fr(LFUN_INSET_INSERT, data);
2054                 dispatch(cur, fr);
2055                 break;
2056         }
2057
2058         case LFUN_NOMENCL_PRINT:
2059         case LFUN_NEWPAGE_INSERT:
2060                 // do nothing fancy
2061                 doInsertInset(cur, this, cmd, false, false);
2062                 cur.posForward();
2063                 break;
2064
2065         case LFUN_SEPARATOR_INSERT: {
2066                 doInsertInset(cur, this, cmd, false, false);
2067                 cur.posForward();
2068                 // remove a following space
2069                 Paragraph & par = cur.paragraph();
2070                 if (cur.pos() != cur.lastpos() && par.isLineSeparator(cur.pos()))
2071                     par.eraseChar(cur.pos(), cur.buffer()->params().track_changes);
2072                 break;
2073         }
2074
2075         case LFUN_DEPTH_DECREMENT:
2076                 changeDepth(cur, DEC_DEPTH);
2077                 break;
2078
2079         case LFUN_DEPTH_INCREMENT:
2080                 changeDepth(cur, INC_DEPTH);
2081                 break;
2082
2083         case LFUN_REGEXP_MODE:
2084                 regexpDispatch(cur, cmd);
2085                 break;
2086
2087         case LFUN_MATH_MODE: {
2088                 if (cmd.argument() == "on" || cmd.argument() == "") {
2089                         // don't pass "on" as argument
2090                         // (it would appear literally in the first cell)
2091                         docstring sel = cur.selectionAsString(false);
2092                         InsetMathMacroTemplate * macro = new InsetMathMacroTemplate(cur.buffer());
2093                         // create a macro template if we see "\\newcommand" somewhere, and
2094                         // an ordinary formula otherwise
2095                         if (!sel.empty()
2096                                 && (sel.find(from_ascii("\\newcommand")) != string::npos
2097                                         || sel.find(from_ascii("\\newlyxcommand")) != string::npos
2098                                         || sel.find(from_ascii("\\def")) != string::npos)
2099                                 && macro->fromString(sel)) {
2100                                 cur.recordUndo();
2101                                 replaceSelection(cur);
2102                                 cur.insert(macro);
2103                         } else {
2104                                 // no meaningful macro template was found
2105                                 delete macro;
2106                                 mathDispatch(cur,FuncRequest(LFUN_MATH_MODE));
2107                         }
2108                 } else
2109                         // The argument is meaningful
2110                         // We replace cmd with LFUN_MATH_INSERT because LFUN_MATH_MODE
2111                         // has a different meaning in math mode
2112                         mathDispatch(cur, FuncRequest(LFUN_MATH_INSERT,cmd.argument()));
2113                 break;
2114         }
2115
2116         case LFUN_MATH_MACRO:
2117                 if (cmd.argument().empty())
2118                         cur.errorMessage(from_utf8(N_("Missing argument")));
2119                 else {
2120                         cur.recordUndo();
2121                         string s = to_utf8(cmd.argument());
2122                         string const s1 = token(s, ' ', 1);
2123                         int const nargs = s1.empty() ? 0 : convert<int>(s1);
2124                         string const s2 = token(s, ' ', 2);
2125                         MacroType type = MacroTypeNewcommand;
2126                         if (s2 == "def")
2127                                 type = MacroTypeDef;
2128                         InsetMathMacroTemplate * inset = new InsetMathMacroTemplate(cur.buffer(),
2129                                 from_utf8(token(s, ' ', 0)), nargs, false, type);
2130                         inset->setBuffer(bv->buffer());
2131                         insertInset(cur, inset);
2132
2133                         // enter macro inset and select the name
2134                         cur.push(*inset);
2135                         cur.top().pos() = cur.top().lastpos();
2136                         cur.resetAnchor();
2137                         cur.selection(true);
2138                         cur.top().pos() = 0;
2139                 }
2140                 break;
2141
2142         case LFUN_MATH_DISPLAY:
2143         case LFUN_MATH_SUBSCRIPT:
2144         case LFUN_MATH_SUPERSCRIPT:
2145         case LFUN_MATH_INSERT:
2146         case LFUN_MATH_AMS_MATRIX:
2147         case LFUN_MATH_MATRIX:
2148         case LFUN_MATH_DELIM:
2149         case LFUN_MATH_BIGDELIM:
2150                 mathDispatch(cur, cmd);
2151                 break;
2152
2153         case LFUN_FONT_EMPH: {
2154                 Font font(ignore_font, ignore_language);
2155                 font.fontInfo().setEmph(FONT_TOGGLE);
2156                 toggleAndShow(cur, this, font);
2157                 break;
2158         }
2159
2160         case LFUN_FONT_ITAL: {
2161                 Font font(ignore_font, ignore_language);
2162                 font.fontInfo().setShape(ITALIC_SHAPE);
2163                 toggleAndShow(cur, this, font);
2164                 break;
2165         }
2166
2167         case LFUN_FONT_BOLD:
2168         case LFUN_FONT_BOLDSYMBOL: {
2169                 Font font(ignore_font, ignore_language);
2170                 font.fontInfo().setSeries(BOLD_SERIES);
2171                 toggleAndShow(cur, this, font);
2172                 break;
2173         }
2174
2175         case LFUN_FONT_NOUN: {
2176                 Font font(ignore_font, ignore_language);
2177                 font.fontInfo().setNoun(FONT_TOGGLE);
2178                 toggleAndShow(cur, this, font);
2179                 break;
2180         }
2181
2182         case LFUN_FONT_TYPEWRITER: {
2183                 Font font(ignore_font, ignore_language);
2184                 font.fontInfo().setFamily(TYPEWRITER_FAMILY); // no good
2185                 toggleAndShow(cur, this, font);
2186                 break;
2187         }
2188
2189         case LFUN_FONT_SANS: {
2190                 Font font(ignore_font, ignore_language);
2191                 font.fontInfo().setFamily(SANS_FAMILY);
2192                 toggleAndShow(cur, this, font);
2193                 break;
2194         }
2195
2196         case LFUN_FONT_ROMAN: {
2197                 Font font(ignore_font, ignore_language);
2198                 font.fontInfo().setFamily(ROMAN_FAMILY);
2199                 toggleAndShow(cur, this, font);
2200                 break;
2201         }
2202
2203         case LFUN_FONT_DEFAULT: {
2204                 Font font(inherit_font, ignore_language);
2205                 toggleAndShow(cur, this, font);
2206                 break;
2207         }
2208
2209         case LFUN_FONT_STRIKEOUT: {
2210                 Font font(ignore_font, ignore_language);
2211                 font.fontInfo().setStrikeout(FONT_TOGGLE);
2212                 toggleAndShow(cur, this, font);
2213                 break;
2214         }
2215
2216         case LFUN_FONT_CROSSOUT: {
2217                 Font font(ignore_font, ignore_language);
2218                 font.fontInfo().setXout(FONT_TOGGLE);
2219                 toggleAndShow(cur, this, font);
2220                 break;
2221         }
2222
2223         case LFUN_FONT_UNDERUNDERLINE: {
2224                 Font font(ignore_font, ignore_language);
2225                 font.fontInfo().setUuline(FONT_TOGGLE);
2226                 toggleAndShow(cur, this, font);
2227                 break;
2228         }
2229
2230         case LFUN_FONT_UNDERWAVE: {
2231                 Font font(ignore_font, ignore_language);
2232                 font.fontInfo().setUwave(FONT_TOGGLE);
2233                 toggleAndShow(cur, this, font);
2234                 break;
2235         }
2236
2237         case LFUN_FONT_UNDERLINE: {
2238                 Font font(ignore_font, ignore_language);
2239                 font.fontInfo().setUnderbar(FONT_TOGGLE);
2240                 toggleAndShow(cur, this, font);
2241                 break;
2242         }
2243
2244         case LFUN_FONT_SIZE: {
2245                 Font font(ignore_font, ignore_language);
2246                 setLyXSize(to_utf8(cmd.argument()), font.fontInfo());
2247                 toggleAndShow(cur, this, font);
2248                 break;
2249         }
2250
2251         case LFUN_LANGUAGE: {
2252                 string const lang_arg = cmd.getArg(0);
2253                 bool const reset = (lang_arg.empty() || lang_arg == "reset");
2254                 Language const * lang =
2255                         reset ? reset_language
2256                               : languages.getLanguage(lang_arg);
2257                 // we allow reset_language, which is 0, but only if it
2258                 // was requested via empty or "reset" arg.
2259                 if (!lang && !reset)
2260                         break;
2261                 bool const toggle = (cmd.getArg(1) != "set");
2262                 selectWordWhenUnderCursor(cur, WHOLE_WORD_STRICT);
2263                 Font font(ignore_font, lang);
2264                 toggleAndShow(cur, this, font, toggle);
2265                 break;
2266         }
2267
2268         case LFUN_TEXTSTYLE_APPLY:
2269                 toggleAndShow(cur, this, freefont, toggleall);
2270                 cur.message(_("Character set"));
2271                 break;
2272
2273         // Set the freefont using the contents of \param data dispatched from
2274         // the frontends and apply it at the current cursor location.
2275         case LFUN_TEXTSTYLE_UPDATE: {
2276                 Font font;
2277                 bool toggle;
2278                 if (font.fromString(to_utf8(cmd.argument()), toggle)) {
2279                         freefont = font;
2280                         toggleall = toggle;
2281                         toggleAndShow(cur, this, freefont, toggleall);
2282                         cur.message(_("Character set"));
2283                 } else {
2284                         lyxerr << "Argument not ok";
2285                 }
2286                 break;
2287         }
2288
2289         case LFUN_FINISHED_LEFT:
2290                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_LEFT:\n" << cur);
2291                 // We're leaving an inset, going left. If the inset is LTR, we're
2292                 // leaving from the front, so we should not move (remain at --- but
2293                 // not in --- the inset). If the inset is RTL, move left, without
2294                 // entering the inset itself; i.e., move to after the inset.
2295                 if (cur.paragraph().getFontSettings(
2296                                 cur.bv().buffer().params(), cur.pos()).isRightToLeft())
2297                         cursorVisLeft(cur, true);
2298                 break;
2299
2300         case LFUN_FINISHED_RIGHT:
2301                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_RIGHT:\n" << cur);
2302                 // We're leaving an inset, going right. If the inset is RTL, we're
2303                 // leaving from the front, so we should not move (remain at --- but
2304                 // not in --- the inset). If the inset is LTR, move right, without
2305                 // entering the inset itself; i.e., move to after the inset.
2306                 if (!cur.paragraph().getFontSettings(
2307                                 cur.bv().buffer().params(), cur.pos()).isRightToLeft())
2308                         cursorVisRight(cur, true);
2309                 break;
2310
2311         case LFUN_FINISHED_BACKWARD:
2312                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_BACKWARD:\n" << cur);
2313                 cur.setCurrentFont();
2314                 break;
2315
2316         case LFUN_FINISHED_FORWARD:
2317                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_FORWARD:\n" << cur);
2318                 ++cur.pos();
2319                 cur.setCurrentFont();
2320                 break;
2321
2322         case LFUN_LAYOUT_PARAGRAPH: {
2323                 string data;
2324                 params2string(cur.paragraph(), data);
2325                 data = "show\n" + data;
2326                 bv->showDialog("paragraph", data);
2327                 break;
2328         }
2329
2330         case LFUN_PARAGRAPH_UPDATE: {
2331                 string data;
2332                 params2string(cur.paragraph(), data);
2333
2334                 // Will the paragraph accept changes from the dialog?
2335                 bool const accept =
2336                         cur.inset().allowParagraphCustomization(cur.idx());
2337
2338                 data = "update " + convert<string>(accept) + '\n' + data;
2339                 bv->updateDialog("paragraph", data);
2340                 break;
2341         }
2342
2343         case LFUN_ACCENT_UMLAUT:
2344         case LFUN_ACCENT_CIRCUMFLEX:
2345         case LFUN_ACCENT_GRAVE:
2346         case LFUN_ACCENT_ACUTE:
2347         case LFUN_ACCENT_TILDE:
2348         case LFUN_ACCENT_PERISPOMENI:
2349         case LFUN_ACCENT_CEDILLA:
2350         case LFUN_ACCENT_MACRON:
2351         case LFUN_ACCENT_DOT:
2352         case LFUN_ACCENT_UNDERDOT:
2353         case LFUN_ACCENT_UNDERBAR:
2354         case LFUN_ACCENT_CARON:
2355         case LFUN_ACCENT_BREVE:
2356         case LFUN_ACCENT_TIE:
2357         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
2358         case LFUN_ACCENT_CIRCLE:
2359         case LFUN_ACCENT_OGONEK:
2360                 theApp()->handleKeyFunc(cmd.action());
2361                 if (!cmd.argument().empty())
2362                         // FIXME: Are all these characters encoded in one byte in utf8?
2363                         bv->translateAndInsert(cmd.argument()[0], this, cur);
2364                 cur.screenUpdateFlags(Update::FitCursor);
2365                 break;
2366
2367         case LFUN_FLOAT_LIST_INSERT: {
2368                 DocumentClass const & tclass = bv->buffer().params().documentClass();
2369                 if (tclass.floats().typeExist(to_utf8(cmd.argument()))) {
2370                         cur.recordUndo();
2371                         if (cur.selection())
2372                                 cutSelection(cur, true, false);
2373                         breakParagraph(cur);
2374
2375                         if (cur.lastpos() != 0) {
2376                                 cursorBackward(cur);
2377                                 breakParagraph(cur);
2378                         }
2379
2380                         docstring const laystr = cur.inset().usePlainLayout() ?
2381                                 tclass.plainLayoutName() :
2382                                 tclass.defaultLayoutName();
2383                         setLayout(cur, laystr);
2384                         ParagraphParameters p;
2385                         // FIXME If this call were replaced with one to clearParagraphParams(),
2386                         // then we could get rid of this method altogether.
2387                         setParagraphs(cur, p);
2388                         // FIXME This should be simplified when InsetFloatList takes a
2389                         // Buffer in its constructor.
2390                         InsetFloatList * ifl = new InsetFloatList(cur.buffer(), to_utf8(cmd.argument()));
2391                         ifl->setBuffer(bv->buffer());
2392                         insertInset(cur, ifl);
2393                         cur.posForward();
2394                 } else {
2395                         lyxerr << "Non-existent float type: "
2396                                << to_utf8(cmd.argument()) << endl;
2397                 }
2398                 break;
2399         }
2400
2401         case LFUN_CHANGE_ACCEPT: {
2402                 acceptOrRejectChanges(cur, ACCEPT);
2403                 break;
2404         }
2405
2406         case LFUN_CHANGE_REJECT: {
2407                 acceptOrRejectChanges(cur, REJECT);
2408                 break;
2409         }
2410
2411         case LFUN_THESAURUS_ENTRY: {
2412                 Language const * language = cur.getFont().language();
2413                 docstring arg = cmd.argument();
2414                 if (arg.empty()) {
2415                         arg = cur.selectionAsString(false);
2416                         // FIXME
2417                         if (arg.size() > 100 || arg.empty()) {
2418                                 // Get word or selection
2419                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2420                                 arg = cur.selectionAsString(false);
2421                                 arg += " lang=" + from_ascii(language->lang());
2422                         }
2423                 } else {
2424                         string lang = cmd.getArg(1);
2425                         // This duplicates the code in GuiThesaurus::initialiseParams
2426                         if (prefixIs(lang, "lang=")) {
2427                                 language = languages.getLanguage(lang.substr(5));
2428                                 if (!language)
2429                                         language = cur.getFont().language();
2430                         }
2431                 }
2432                 string lang = language->code();
2433                 if (lyxrc.thesaurusdir_path.empty() && !thesaurus.thesaurusInstalled(from_ascii(lang))) {
2434                         LYXERR(Debug::ACTION, "Command " << cmd << ". Thesaurus not found for language " << lang);
2435                         frontend::Alert::warning(_("Path to thesaurus directory not set!"),
2436                                         _("The path to the thesaurus directory has not been specified.\n"
2437                                           "The thesaurus is not functional.\n"
2438                                           "Please refer to sec. 6.15.1 of the User's Guide for setup\n"
2439                                           "instructions."));
2440                 }
2441                 bv->showDialog("thesaurus", to_utf8(arg));
2442                 break;
2443         }
2444
2445         case LFUN_SPELLING_ADD: {
2446                 Language const * language = getLanguage(cur, cmd.getArg(1));
2447                 docstring word = from_utf8(cmd.getArg(0));
2448                 if (word.empty()) {
2449                         word = cur.selectionAsString(false);
2450                         // FIXME
2451                         if (word.size() > 100 || word.empty()) {
2452                                 // Get word or selection
2453                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2454                                 word = cur.selectionAsString(false);
2455                         }
2456                 }
2457                 WordLangTuple wl(word, language);
2458                 theSpellChecker()->insert(wl);
2459                 break;
2460         }
2461
2462         case LFUN_SPELLING_IGNORE: {
2463                 Language const * language = getLanguage(cur, cmd.getArg(1));
2464                 docstring word = from_utf8(cmd.getArg(0));
2465                 if (word.empty()) {
2466                         word = cur.selectionAsString(false);
2467                         // FIXME
2468                         if (word.size() > 100 || word.empty()) {
2469                                 // Get word or selection
2470                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2471                                 word = cur.selectionAsString(false);
2472                         }
2473                 }
2474                 WordLangTuple wl(word, language);
2475                 theSpellChecker()->accept(wl);
2476                 break;
2477         }
2478
2479         case LFUN_SPELLING_REMOVE: {
2480                 Language const * language = getLanguage(cur, cmd.getArg(1));
2481                 docstring word = from_utf8(cmd.getArg(0));
2482                 if (word.empty()) {
2483                         word = cur.selectionAsString(false);
2484                         // FIXME
2485                         if (word.size() > 100 || word.empty()) {
2486                                 // Get word or selection
2487                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2488                                 word = cur.selectionAsString(false);
2489                         }
2490                 }
2491                 WordLangTuple wl(word, language);
2492                 theSpellChecker()->remove(wl);
2493                 break;
2494         }
2495
2496         case LFUN_PARAGRAPH_PARAMS_APPLY: {
2497                 // Given data, an encoding of the ParagraphParameters
2498                 // generated in the Paragraph dialog, this function sets
2499                 // the current paragraph, or currently selected paragraphs,
2500                 // appropriately.
2501                 // NOTE: This function overrides all existing settings.
2502                 setParagraphs(cur, cmd.argument());
2503                 cur.message(_("Paragraph layout set"));
2504                 break;
2505         }
2506
2507         case LFUN_PARAGRAPH_PARAMS: {
2508                 // Given data, an encoding of the ParagraphParameters as we'd
2509                 // find them in a LyX file, this function modifies the current paragraph,
2510                 // or currently selected paragraphs.
2511                 // NOTE: This function only modifies, and does not override, existing
2512                 // settings.
2513                 setParagraphs(cur, cmd.argument(), true);
2514                 cur.message(_("Paragraph layout set"));
2515                 break;
2516         }
2517
2518         case LFUN_ESCAPE:
2519                 if (cur.selection()) {
2520                         cur.selection(false);
2521                 } else {
2522                         cur.undispatched();
2523                         // This used to be LFUN_FINISHED_RIGHT, I think FORWARD is more
2524                         // correct, but I'm not 100% sure -- dov, 071019
2525                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
2526                 }
2527                 break;
2528
2529         case LFUN_OUTLINE_UP:
2530                 outline(OutlineUp, cur);
2531                 setCursor(cur, cur.pit(), 0);
2532                 cur.forceBufferUpdate();
2533                 needsUpdate = true;
2534                 break;
2535
2536         case LFUN_OUTLINE_DOWN:
2537                 outline(OutlineDown, cur);
2538                 setCursor(cur, cur.pit(), 0);
2539                 cur.forceBufferUpdate();
2540                 needsUpdate = true;
2541                 break;
2542
2543         case LFUN_OUTLINE_IN:
2544                 outline(OutlineIn, cur);
2545                 cur.forceBufferUpdate();
2546                 needsUpdate = true;
2547                 break;
2548
2549         case LFUN_OUTLINE_OUT:
2550                 outline(OutlineOut, cur);
2551                 cur.forceBufferUpdate();
2552                 needsUpdate = true;
2553                 break;
2554
2555         case LFUN_SERVER_GET_STATISTICS:
2556                 {
2557                         DocIterator from, to;
2558                         if (cur.selection()) {
2559                                 from = cur.selectionBegin();
2560                                 to = cur.selectionEnd();
2561                         } else {
2562                                 from = doc_iterator_begin(cur.buffer());
2563                                 to = doc_iterator_end(cur.buffer());
2564                         }
2565
2566                         cur.buffer()->updateStatistics(from, to);
2567                         string const arg0 = cmd.getArg(0);
2568                         if (arg0 == "words") {
2569                                 cur.message(convert<docstring>(cur.buffer()->wordCount()));
2570                         } else if (arg0 == "chars") {
2571                                 cur.message(convert<docstring>(cur.buffer()->charCount(false)));
2572                         } else if (arg0 == "chars-space") {
2573                                 cur.message(convert<docstring>(cur.buffer()->charCount(true)));
2574                         } else {
2575                                 cur.message(convert<docstring>(cur.buffer()->wordCount()) + " "
2576                                 + convert<docstring>(cur.buffer()->charCount(false)) + " "
2577                                 + convert<docstring>(cur.buffer()->charCount(true)));
2578                         }
2579                 }
2580                 break;
2581
2582         default:
2583                 LYXERR(Debug::ACTION, "Command " << cmd << " not DISPATCHED by Text");
2584                 cur.undispatched();
2585                 break;
2586         }
2587
2588         needsUpdate |= (cur.pos() != cur.lastpos()) && cur.selection();
2589
2590         if (lyxrc.spellcheck_continuously && !needsUpdate) {
2591                 // Check for misspelled text
2592                 // The redraw is useful because of the painting of
2593                 // misspelled markers depends on the cursor position.
2594                 // Trigger a redraw for cursor moves inside misspelled text.
2595                 if (!cur.inTexted()) {
2596                         // move from regular text to math
2597                         needsUpdate = last_misspelled;
2598                 } else if (oldTopSlice != cur.top() || oldBoundary != cur.boundary()) {
2599                         // move inside regular text
2600                         needsUpdate = last_misspelled
2601                                 || cur.paragraph().isMisspelled(cur.pos(), true);
2602                 }
2603         }
2604
2605         // FIXME: The cursor flag is reset two lines below
2606         // so we need to check here if some of the LFUN did touch that.
2607         // for now only Text::erase() and Text::backspace() do that.
2608         // The plan is to verify all the LFUNs and then to remove this
2609         // singleParUpdate boolean altogether.
2610         if (cur.result().screenUpdate() & Update::Force) {
2611                 singleParUpdate = false;
2612                 needsUpdate = true;
2613         }
2614
2615         // FIXME: the following code should go in favor of fine grained
2616         // update flag treatment.
2617         if (singleParUpdate) {
2618                 // Inserting characters does not change par height in general. So, try
2619                 // to update _only_ this paragraph. BufferView will detect if a full
2620                 // metrics update is needed anyway.
2621                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
2622                 return;
2623         }
2624         if (!needsUpdate
2625             && &oldTopSlice.inset() == &cur.inset()
2626             && oldTopSlice.idx() == cur.idx()
2627             && !oldSelection // oldSelection is a backup of cur.selection() at the beginning of the function.
2628             && !cur.selection())
2629                 // FIXME: it would be better if we could just do this
2630                 //
2631                 //if (cur.result().update() != Update::FitCursor)
2632                 //      cur.noScreenUpdate();
2633                 //
2634                 // But some LFUNs do not set Update::FitCursor when needed, so we
2635                 // do it for all. This is not very harmfull as FitCursor will provoke
2636                 // a full redraw only if needed but still, a proper review of all LFUN
2637                 // should be done and this needsUpdate boolean can then be removed.
2638                 cur.screenUpdateFlags(Update::FitCursor);
2639         else
2640                 cur.screenUpdateFlags(Update::Force | Update::FitCursor);
2641 }
2642
2643
2644 bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
2645                         FuncStatus & flag) const
2646 {
2647         LBUFERR(this == cur.text());
2648
2649         FontInfo const & fontinfo = cur.real_current_font.fontInfo();
2650         bool enable = true;
2651         bool allow_in_passthru = false;
2652         InsetCode code = NO_CODE;
2653
2654         switch (cmd.action()) {
2655
2656         case LFUN_DEPTH_DECREMENT:
2657                 enable = changeDepthAllowed(cur, DEC_DEPTH);
2658                 break;
2659
2660         case LFUN_DEPTH_INCREMENT:
2661                 enable = changeDepthAllowed(cur, INC_DEPTH);
2662                 break;
2663
2664         case LFUN_APPENDIX:
2665                 // FIXME We really should not allow this to be put, e.g.,
2666                 // in a footnote, or in ERT. But it would make sense in a
2667                 // branch, so I'm not sure what to do.
2668                 flag.setOnOff(cur.paragraph().params().startOfAppendix());
2669                 break;
2670
2671         case LFUN_DIALOG_SHOW_NEW_INSET:
2672                 if (cmd.argument() == "bibitem")
2673                         code = BIBITEM_CODE;
2674                 else if (cmd.argument() == "bibtex") {
2675                         code = BIBTEX_CODE;
2676                         // not allowed in description items
2677                         enable = !inDescriptionItem(cur);
2678                 }
2679                 else if (cmd.argument() == "box")
2680                         code = BOX_CODE;
2681                 else if (cmd.argument() == "branch")
2682                         code = BRANCH_CODE;
2683                 else if (cmd.argument() == "citation")
2684                         code = CITE_CODE;
2685                 else if (cmd.argument() == "ert")
2686                         code = ERT_CODE;
2687                 else if (cmd.argument() == "external")
2688                         code = EXTERNAL_CODE;
2689                 else if (cmd.argument() == "float")
2690                         code = FLOAT_CODE;
2691                 else if (cmd.argument() == "graphics")
2692                         code = GRAPHICS_CODE;
2693                 else if (cmd.argument() == "href")
2694                         code = HYPERLINK_CODE;
2695                 else if (cmd.argument() == "include")
2696                         code = INCLUDE_CODE;
2697                 else if (cmd.argument() == "index")
2698                         code = INDEX_CODE;
2699                 else if (cmd.argument() == "index_print")
2700                         code = INDEX_PRINT_CODE;
2701                 else if (cmd.argument() == "listings")
2702                         code = LISTINGS_CODE;
2703                 else if (cmd.argument() == "mathspace")
2704                         code = MATH_HULL_CODE;
2705                 else if (cmd.argument() == "nomenclature")
2706                         code = NOMENCL_CODE;
2707                 else if (cmd.argument() == "nomencl_print")
2708                         code = NOMENCL_PRINT_CODE;
2709                 else if (cmd.argument() == "label")
2710                         code = LABEL_CODE;
2711                 else if (cmd.argument() == "line")
2712                         code = LINE_CODE;
2713                 else if (cmd.argument() == "note")
2714                         code = NOTE_CODE;
2715                 else if (cmd.argument() == "phantom")
2716                         code = PHANTOM_CODE;
2717                 else if (cmd.argument() == "ref")
2718                         code = REF_CODE;
2719                 else if (cmd.argument() == "space")
2720                         code = SPACE_CODE;
2721                 else if (cmd.argument() == "toc")
2722                         code = TOC_CODE;
2723                 else if (cmd.argument() == "vspace")
2724                         code = VSPACE_CODE;
2725                 else if (cmd.argument() == "wrap")
2726                         code = WRAP_CODE;
2727                 break;
2728
2729         case LFUN_ERT_INSERT:
2730                 code = ERT_CODE;
2731                 break;
2732         case LFUN_LISTING_INSERT:
2733                 code = LISTINGS_CODE;
2734                 // not allowed in description items
2735                 enable = !inDescriptionItem(cur);
2736                 break;
2737         case LFUN_FOOTNOTE_INSERT:
2738                 code = FOOT_CODE;
2739                 break;
2740         case LFUN_TABULAR_INSERT:
2741                 code = TABULAR_CODE;
2742                 break;
2743         case LFUN_MARGINALNOTE_INSERT:
2744                 code = MARGIN_CODE;
2745                 break;
2746         case LFUN_FLOAT_INSERT:
2747         case LFUN_FLOAT_WIDE_INSERT:
2748                 // FIXME: If there is a selection, we should check whether there
2749                 // are floats in the selection, but this has performance issues, see
2750                 // LFUN_CHANGE_ACCEPT/REJECT.
2751                 code = FLOAT_CODE;
2752                 if (inDescriptionItem(cur))
2753                         // not allowed in description items
2754                         enable = false;
2755                 else {
2756                         InsetCode const inset_code = cur.inset().lyxCode();
2757
2758                         // algorithm floats cannot be put in another float
2759                         if (to_utf8(cmd.argument()) == "algorithm") {
2760                                 enable = inset_code != WRAP_CODE && inset_code != FLOAT_CODE;
2761                                 break;
2762                         }
2763
2764                         // for figures and tables: only allow in another
2765                         // float or wrap if it is of the same type and
2766                         // not a subfloat already
2767                         if(cur.inset().lyxCode() == code) {
2768                                 InsetFloat const & ins =
2769                                         static_cast<InsetFloat const &>(cur.inset());
2770                                 enable = ins.params().type == to_utf8(cmd.argument())
2771                                         && !ins.params().subfloat;
2772                         } else if(cur.inset().lyxCode() == WRAP_CODE) {
2773                                 InsetWrap const & ins =
2774                                         static_cast<InsetWrap const &>(cur.inset());
2775                                 enable = ins.params().type == to_utf8(cmd.argument());
2776                         }
2777                 }
2778                 break;
2779         case LFUN_WRAP_INSERT:
2780                 code = WRAP_CODE;
2781                 // not allowed in description items
2782                 enable = !inDescriptionItem(cur);
2783                 break;
2784         case LFUN_FLOAT_LIST_INSERT: {
2785                 code = FLOAT_LIST_CODE;
2786                 // not allowed in description items
2787                 enable = !inDescriptionItem(cur);
2788                 if (enable) {
2789                         FloatList const & floats = cur.buffer()->params().documentClass().floats();
2790                         FloatList::const_iterator cit = floats[to_ascii(cmd.argument())];
2791                         // make sure we know about such floats
2792                         if (cit == floats.end() ||
2793                                         // and that we know how to generate a list of them
2794                             (!cit->second.usesFloatPkg() && cit->second.listCommand().empty())) {
2795                                 flag.setUnknown(true);
2796                                 // probably not necessary, but...
2797                                 enable = false;
2798                         }
2799                 }
2800                 break;
2801         }
2802         case LFUN_CAPTION_INSERT: {
2803                 code = CAPTION_CODE;
2804                 string arg = cmd.getArg(0);
2805                 bool varia = arg != "Unnumbered"
2806                         && cur.inset().allowsCaptionVariation(arg);
2807                 // not allowed in description items,
2808                 // and in specific insets
2809                 enable = !inDescriptionItem(cur)
2810                         && (varia || arg.empty() || arg == "Standard");
2811                 break;
2812         }
2813         case LFUN_NOTE_INSERT:
2814                 code = NOTE_CODE;
2815                 // in commands (sections etc.) and description items,
2816                 // only Notes are allowed
2817                 enable = (cmd.argument().empty() || cmd.getArg(0) == "Note" ||
2818                           (!cur.paragraph().layout().isCommand()
2819                            && !inDescriptionItem(cur)));
2820                 break;
2821         case LFUN_FLEX_INSERT: {
2822                 code = FLEX_CODE;
2823                 string s = cmd.getArg(0);
2824                 InsetLayout il =
2825                         cur.buffer()->params().documentClass().insetLayout(from_utf8(s));
2826                 if (il.lyxtype() != InsetLayout::CHARSTYLE &&
2827                     il.lyxtype() != InsetLayout::CUSTOM &&
2828                     il.lyxtype() != InsetLayout::ELEMENT &&
2829                     il.lyxtype ()!= InsetLayout::STANDARD)
2830                         enable = false;
2831                 break;
2832                 }
2833         case LFUN_BOX_INSERT:
2834                 code = BOX_CODE;
2835                 break;
2836         case LFUN_BRANCH_INSERT:
2837                 code = BRANCH_CODE;
2838                 if (cur.buffer()->masterBuffer()->params().branchlist().empty()
2839                     && cur.buffer()->params().branchlist().empty())
2840                         enable = false;
2841                 break;
2842         case LFUN_IPA_INSERT:
2843                 code = IPA_CODE;
2844                 break;
2845         case LFUN_PHANTOM_INSERT:
2846                 code = PHANTOM_CODE;
2847                 break;
2848         case LFUN_LABEL_INSERT:
2849                 code = LABEL_CODE;
2850                 break;
2851         case LFUN_INFO_INSERT:
2852                 code = INFO_CODE;
2853                 break;
2854         case LFUN_ARGUMENT_INSERT: {
2855                 code = ARG_CODE;
2856                 allow_in_passthru = true;
2857                 string const arg = cmd.getArg(0);
2858                 if (arg.empty()) {
2859                         enable = false;
2860                         break;
2861                 }
2862                 Layout const & lay = cur.paragraph().layout();
2863                 Layout::LaTeXArgMap args = lay.args();
2864                 Layout::LaTeXArgMap::const_iterator const lait =
2865                                 args.find(arg);
2866                 if (lait != args.end()) {
2867                         enable = true;
2868                         pit_type pit = cur.pit();
2869                         pit_type lastpit = cur.pit();
2870                         if (lay.isEnvironment() && !prefixIs(arg, "item:")) {
2871                                 // In a sequence of "merged" environment layouts, we only allow
2872                                 // non-item arguments once.
2873                                 lastpit = cur.lastpit();
2874                                 // get the first paragraph in sequence with this layout
2875                                 depth_type const current_depth = cur.paragraph().params().depth();
2876                                 while (true) {
2877                                         if (pit == 0)
2878                                                 break;
2879                                         Paragraph cpar = pars_[pit - 1];
2880                                         if (cpar.layout() == lay && cpar.params().depth() == current_depth)
2881                                                 --pit;
2882                                         else
2883                                                 break;
2884                                 }
2885                         }
2886                         for (; pit <= lastpit; ++pit) {
2887                                 if (pars_[pit].layout() != lay)
2888                                         break;
2889                                 for (auto const & table : pars_[pit].insetList())
2890                                         if (InsetArgument const * ins = table.inset->asInsetArgument())
2891                                                 if (ins->name() == arg) {
2892                                                         // we have this already
2893                                                         enable = false;
2894                                                         break;
2895                                                 }
2896                         }
2897                 } else
2898                         enable = false;
2899                 break;
2900         }
2901         case LFUN_INDEX_INSERT:
2902                 code = INDEX_CODE;
2903                 break;
2904         case LFUN_INDEX_PRINT:
2905                 code = INDEX_PRINT_CODE;
2906                 // not allowed in description items
2907                 enable = !inDescriptionItem(cur);
2908                 break;
2909         case LFUN_NOMENCL_INSERT:
2910                 if (cur.selIsMultiCell() || cur.selIsMultiLine()) {
2911                         enable = false;
2912                         break;
2913                 }
2914                 code = NOMENCL_CODE;
2915                 break;
2916         case LFUN_NOMENCL_PRINT:
2917                 code = NOMENCL_PRINT_CODE;
2918                 // not allowed in description items
2919                 enable = !inDescriptionItem(cur);
2920                 break;
2921         case LFUN_HREF_INSERT:
2922                 if (cur.selIsMultiCell() || cur.selIsMultiLine()) {
2923                         enable = false;
2924                         break;
2925                 }
2926                 code = HYPERLINK_CODE;
2927                 break;
2928         case LFUN_IPAMACRO_INSERT: {
2929                 string const arg = cmd.getArg(0);
2930                 if (arg == "deco")
2931                         code = IPADECO_CODE;
2932                 else
2933                         code = IPACHAR_CODE;
2934                 break;
2935         }
2936         case LFUN_QUOTE_INSERT:
2937                 // always allow this, since we will inset a raw quote
2938                 // if an inset is not allowed.
2939                 allow_in_passthru = true;
2940                 break;
2941         case LFUN_SPECIALCHAR_INSERT:
2942                 code = SPECIALCHAR_CODE;
2943                 break;
2944         case LFUN_SPACE_INSERT:
2945                 // slight hack: we know this is allowed in math mode
2946                 if (cur.inTexted())
2947                         code = SPACE_CODE;
2948                 break;
2949         case LFUN_PREVIEW_INSERT:
2950                 code = PREVIEW_CODE;
2951                 break;
2952         case LFUN_SCRIPT_INSERT:
2953                 code = SCRIPT_CODE;
2954                 break;
2955
2956         case LFUN_MATH_INSERT:
2957         case LFUN_MATH_AMS_MATRIX:
2958         case LFUN_MATH_MATRIX:
2959         case LFUN_MATH_DELIM:
2960         case LFUN_MATH_BIGDELIM:
2961         case LFUN_MATH_DISPLAY:
2962         case LFUN_MATH_MODE:
2963         case LFUN_MATH_MACRO:
2964         case LFUN_MATH_SUBSCRIPT:
2965         case LFUN_MATH_SUPERSCRIPT:
2966                 code = MATH_HULL_CODE;
2967                 break;
2968
2969         case LFUN_REGEXP_MODE:
2970                 code = MATH_HULL_CODE;
2971                 enable = cur.buffer()->isInternal() && !cur.inRegexped();
2972                 break;
2973
2974         case LFUN_INSET_MODIFY:
2975                 // We need to disable this, because we may get called for a
2976                 // tabular cell via
2977                 // InsetTabular::getStatus() -> InsetText::getStatus()
2978                 // and we don't handle LFUN_INSET_MODIFY.
2979                 enable = false;
2980                 break;
2981
2982         case LFUN_FONT_EMPH:
2983                 flag.setOnOff(fontinfo.emph() == FONT_ON);
2984                 enable = !cur.paragraph().isPassThru();
2985                 break;
2986
2987         case LFUN_FONT_ITAL:
2988                 flag.setOnOff(fontinfo.shape() == ITALIC_SHAPE);
2989                 enable = !cur.paragraph().isPassThru();
2990                 break;
2991
2992         case LFUN_FONT_NOUN:
2993                 flag.setOnOff(fontinfo.noun() == FONT_ON);
2994                 enable = !cur.paragraph().isPassThru();
2995                 break;
2996
2997         case LFUN_FONT_BOLD:
2998         case LFUN_FONT_BOLDSYMBOL:
2999                 flag.setOnOff(fontinfo.series() == BOLD_SERIES);
3000                 enable = !cur.paragraph().isPassThru();
3001                 break;
3002
3003         case LFUN_FONT_SANS:
3004                 flag.setOnOff(fontinfo.family() == SANS_FAMILY);
3005                 enable = !cur.paragraph().isPassThru();
3006                 break;
3007
3008         case LFUN_FONT_ROMAN:
3009                 flag.setOnOff(fontinfo.family() == ROMAN_FAMILY);
3010                 enable = !cur.paragraph().isPassThru();
3011                 break;
3012
3013         case LFUN_FONT_TYPEWRITER:
3014                 flag.setOnOff(fontinfo.family() == TYPEWRITER_FAMILY);
3015                 enable = !cur.paragraph().isPassThru();
3016                 break;
3017
3018         case LFUN_CUT:
3019         case LFUN_COPY:
3020                 enable = cur.selection();
3021                 break;
3022
3023         case LFUN_PASTE: {
3024                 if (cmd.argument().empty()) {
3025                         if (theClipboard().isInternal())
3026                                 enable = cap::numberOfSelections() > 0;
3027                         else
3028                                 enable = !theClipboard().empty();
3029                         break;
3030                 }
3031
3032                 // we have an argument
3033                 string const arg = to_utf8(cmd.argument());
3034                 if (isStrUnsignedInt(arg)) {
3035                         // it's a number and therefore means the internal stack
3036                         unsigned int n = convert<unsigned int>(arg);
3037                         enable = cap::numberOfSelections() > n;
3038                         break;
3039                 }
3040
3041                 // explicit text type?
3042                 if (arg == "html") {
3043                         // Do not enable for PlainTextType, since some tidying in the
3044                         // frontend is needed for HTML, which is too unsafe for plain text.
3045                         enable = theClipboard().hasTextContents(Clipboard::HtmlTextType);
3046                         break;
3047                 } else if (arg == "latex") {
3048                         // LaTeX is usually not available on the clipboard with
3049                         // the correct MIME type, but in plain text.
3050                         enable = theClipboard().hasTextContents(Clipboard::PlainTextType) ||
3051                                  theClipboard().hasTextContents(Clipboard::LaTeXTextType);
3052                         break;
3053                 }
3054
3055                 Clipboard::GraphicsType type = Clipboard::AnyGraphicsType;
3056                 if (arg == "pdf")
3057                         type = Clipboard::PdfGraphicsType;
3058                 else if (arg == "png")
3059                         type = Clipboard::PngGraphicsType;
3060                 else if (arg == "jpeg")
3061                         type = Clipboard::JpegGraphicsType;
3062                 else if (arg == "linkback")
3063                         type = Clipboard::LinkBackGraphicsType;
3064                 else if (arg == "emf")
3065                         type = Clipboard::EmfGraphicsType;
3066                 else if (arg == "wmf")
3067                         type = Clipboard::WmfGraphicsType;
3068                 else {
3069                         // unknown argument
3070                         LYXERR0("Unrecognized graphics type: " << arg);
3071                         // we don't want to assert if the user just mistyped the LFUN
3072                         LATTEST(cmd.origin() != FuncRequest::INTERNAL);
3073                         enable = false;
3074                         break;
3075                 }
3076                 enable = theClipboard().hasGraphicsContents(type);
3077                 break;
3078         }
3079
3080         case LFUN_CLIPBOARD_PASTE:
3081         case LFUN_CLIPBOARD_PASTE_SIMPLE:
3082                 enable = !theClipboard().empty();
3083                 break;
3084
3085         case LFUN_PRIMARY_SELECTION_PASTE:
3086                 enable = cur.selection() || !theSelection().empty();
3087                 break;
3088
3089         case LFUN_SELECTION_PASTE:
3090                 enable = cap::selection();
3091                 break;
3092
3093         case LFUN_PARAGRAPH_MOVE_UP:
3094                 enable = cur.pit() > 0 && !cur.selection();
3095                 break;
3096
3097         case LFUN_PARAGRAPH_MOVE_DOWN:
3098                 enable = cur.pit() < cur.lastpit() && !cur.selection();
3099                 break;
3100
3101         case LFUN_CHANGE_ACCEPT:
3102         case LFUN_CHANGE_REJECT:
3103                 // In principle, these LFUNs should only be enabled if there
3104                 // is a change at the current position/in the current selection.
3105                 // However, without proper optimizations, this will inevitably
3106                 // result in unacceptable performance - just imagine a user who
3107                 // wants to select the complete content of a long document.
3108                 if (!cur.selection())
3109                         enable = cur.paragraph().isChanged(cur.pos());
3110                 else
3111                         // TODO: context-sensitive enabling of LFUN_CHANGE_ACCEPT/REJECT
3112                         // for selections.
3113                         enable = true;
3114                 break;
3115
3116         case LFUN_OUTLINE_UP:
3117         case LFUN_OUTLINE_DOWN:
3118         case LFUN_OUTLINE_IN:
3119         case LFUN_OUTLINE_OUT:
3120                 // FIXME: LyX is not ready for outlining within inset.
3121                 enable = isMainText()
3122                         && cur.buffer()->text().getTocLevel(cur.pit()) != Layout::NOT_IN_TOC;
3123                 break;
3124
3125         case LFUN_NEWLINE_INSERT:
3126                 // LaTeX restrictions (labels or empty par)
3127                 enable = !cur.paragraph().isPassThru()
3128                         && cur.pos() > cur.paragraph().beginOfBody();
3129                 break;
3130
3131         case LFUN_SEPARATOR_INSERT:
3132                 // Always enabled for now
3133                 enable = true;
3134                 break;
3135
3136         case LFUN_TAB_INSERT:
3137         case LFUN_TAB_DELETE:
3138                 enable = cur.paragraph().isPassThru();
3139                 break;
3140
3141         case LFUN_SET_GRAPHICS_GROUP: {
3142                 InsetGraphics * ins = graphics::getCurrentGraphicsInset(cur);
3143                 if (!ins)
3144                         enable = false;
3145                 else
3146                         flag.setOnOff(to_utf8(cmd.argument()) == ins->getParams().groupId);
3147                 break;
3148         }
3149
3150         case LFUN_NEWPAGE_INSERT:
3151                 // not allowed in description items
3152                 code = NEWPAGE_CODE;
3153                 enable = !inDescriptionItem(cur);
3154                 break;
3155
3156         case LFUN_DATE_INSERT: {
3157                 string const format = cmd.argument().empty()
3158                         ? lyxrc.date_insert_format : to_utf8(cmd.argument());
3159                 enable = support::os::is_valid_strftime(format);
3160                 break;
3161         }
3162
3163         case LFUN_LANGUAGE:
3164                 enable = !cur.paragraph().isPassThru();
3165                 flag.setOnOff(cmd.getArg(0) == cur.real_current_font.language()->lang());
3166                 break;
3167
3168         case LFUN_PARAGRAPH_BREAK:
3169                 enable = inset().allowMultiPar();
3170                 break;
3171
3172         case LFUN_SPELLING_ADD:
3173         case LFUN_SPELLING_IGNORE:
3174         case LFUN_SPELLING_REMOVE:
3175                 enable = theSpellChecker() != NULL;
3176                 if (enable && !cmd.getArg(1).empty()) {
3177                         // validate explicitly given language
3178                         Language const * const lang = const_cast<Language *>(languages.getLanguage(cmd.getArg(1)));
3179                         enable &= lang != NULL;
3180                 }
3181                 break;
3182
3183         case LFUN_LAYOUT: {
3184                 DocumentClass const & tclass = cur.buffer()->params().documentClass();
3185                 bool const ignorenests = cmd.getArg(1) == "ignorenests";
3186                 docstring layout = ignorenests ? from_utf8(cmd.getArg(0)) : cmd.argument();
3187                 if (layout.empty())
3188                         layout = tclass.defaultLayoutName();
3189                 enable = !owner_->forcePlainLayout() && tclass.hasLayout(layout);
3190
3191                 flag.setOnOff(layout == cur.paragraph().layout().name());
3192                 break;
3193         }
3194
3195         case LFUN_ENVIRONMENT_SPLIT: {
3196                 if (cmd.argument() == "outer") {
3197                         // check if we have an environment in our nesting hierarchy
3198                         bool res = false;
3199                         depth_type const current_depth = cur.paragraph().params().depth();
3200                         pit_type pit = cur.pit();
3201                         Paragraph cpar = pars_[pit];
3202                         while (true) {
3203                                 if (pit == 0 || cpar.params().depth() == 0)
3204                                         break;
3205                                 --pit;
3206                                 cpar = pars_[pit];
3207                                 if (cpar.params().depth() < current_depth)
3208                                         res = cpar.layout().isEnvironment();
3209                         }
3210                         enable = res;
3211                         break;
3212                 }
3213                 else if (cmd.argument() == "previous") {
3214                         // look if we have an environment in the previous par
3215                         pit_type pit = cur.pit();
3216                         Paragraph cpar = pars_[pit];
3217                         if (pit > 0) {
3218                                 --pit;
3219                                 cpar = pars_[pit];
3220                                 enable = cpar.layout().isEnvironment();
3221                                 break;
3222                         }
3223                         enable = false;
3224                         break;
3225                 }
3226                 else if (cur.paragraph().layout().isEnvironment()) {
3227                         enable = true;
3228                         break;
3229                 }
3230                 enable = false;
3231                 break;
3232         }
3233
3234         case LFUN_LAYOUT_PARAGRAPH:
3235         case LFUN_PARAGRAPH_PARAMS:
3236         case LFUN_PARAGRAPH_PARAMS_APPLY:
3237         case LFUN_PARAGRAPH_UPDATE:
3238                 enable = owner_->allowParagraphCustomization();
3239                 break;
3240
3241         // FIXME: why are accent lfuns forbidden with pass_thru layouts?
3242         //  Because they insert COMBINING DIACRITICAL Unicode characters,
3243         //  that cannot be handled by LaTeX but must be converted according
3244         //  to the definition in lib/unicodesymbols?
3245         case LFUN_ACCENT_ACUTE:
3246         case LFUN_ACCENT_BREVE:
3247         case LFUN_ACCENT_CARON:
3248         case LFUN_ACCENT_CEDILLA:
3249         case LFUN_ACCENT_CIRCLE:
3250         case LFUN_ACCENT_CIRCUMFLEX:
3251         case LFUN_ACCENT_DOT:
3252         case LFUN_ACCENT_GRAVE:
3253         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
3254         case LFUN_ACCENT_MACRON:
3255         case LFUN_ACCENT_OGONEK:
3256         case LFUN_ACCENT_TIE:
3257         case LFUN_ACCENT_TILDE:
3258         case LFUN_ACCENT_PERISPOMENI:
3259         case LFUN_ACCENT_UMLAUT:
3260         case LFUN_ACCENT_UNDERBAR:
3261         case LFUN_ACCENT_UNDERDOT:
3262         case LFUN_FONT_DEFAULT:
3263         case LFUN_FONT_FRAK:
3264         case LFUN_FONT_SIZE:
3265         case LFUN_FONT_STATE:
3266         case LFUN_FONT_UNDERLINE:
3267         case LFUN_FONT_STRIKEOUT:
3268         case LFUN_FONT_CROSSOUT:
3269         case LFUN_FONT_UNDERUNDERLINE:
3270         case LFUN_FONT_UNDERWAVE:
3271         case LFUN_TEXTSTYLE_APPLY:
3272         case LFUN_TEXTSTYLE_UPDATE:
3273                 enable = !cur.paragraph().isPassThru();
3274                 break;
3275
3276         case LFUN_WORD_DELETE_FORWARD:
3277         case LFUN_WORD_DELETE_BACKWARD:
3278         case LFUN_LINE_DELETE_FORWARD:
3279         case LFUN_WORD_FORWARD:
3280         case LFUN_WORD_BACKWARD:
3281         case LFUN_WORD_RIGHT:
3282         case LFUN_WORD_LEFT:
3283         case LFUN_CHAR_FORWARD:
3284         case LFUN_CHAR_FORWARD_SELECT:
3285         case LFUN_CHAR_BACKWARD:
3286         case LFUN_CHAR_BACKWARD_SELECT:
3287         case LFUN_CHAR_LEFT:
3288         case LFUN_CHAR_LEFT_SELECT:
3289         case LFUN_CHAR_RIGHT:
3290         case LFUN_CHAR_RIGHT_SELECT:
3291         case LFUN_UP:
3292         case LFUN_UP_SELECT:
3293         case LFUN_DOWN:
3294         case LFUN_DOWN_SELECT:
3295         case LFUN_PARAGRAPH_UP_SELECT:
3296         case LFUN_PARAGRAPH_DOWN_SELECT:
3297         case LFUN_LINE_BEGIN_SELECT:
3298         case LFUN_LINE_END_SELECT:
3299         case LFUN_WORD_FORWARD_SELECT:
3300         case LFUN_WORD_BACKWARD_SELECT:
3301         case LFUN_WORD_RIGHT_SELECT:
3302         case LFUN_WORD_LEFT_SELECT:
3303         case LFUN_WORD_SELECT:
3304         case LFUN_SECTION_SELECT:
3305         case LFUN_BUFFER_BEGIN:
3306         case LFUN_BUFFER_END:
3307         case LFUN_BUFFER_BEGIN_SELECT:
3308         case LFUN_BUFFER_END_SELECT:
3309         case LFUN_INSET_BEGIN:
3310         case LFUN_INSET_END:
3311         case LFUN_INSET_BEGIN_SELECT:
3312         case LFUN_INSET_END_SELECT:
3313         case LFUN_PARAGRAPH_UP:
3314         case LFUN_PARAGRAPH_DOWN:
3315         case LFUN_LINE_BEGIN:
3316         case LFUN_LINE_END:
3317         case LFUN_CHAR_DELETE_FORWARD:
3318         case LFUN_CHAR_DELETE_BACKWARD:
3319         case LFUN_WORD_UPCASE:
3320         case LFUN_WORD_LOWCASE:
3321         case LFUN_WORD_CAPITALIZE:
3322         case LFUN_CHARS_TRANSPOSE:
3323         case LFUN_SERVER_GET_XY:
3324         case LFUN_SERVER_SET_XY:
3325         case LFUN_SERVER_GET_LAYOUT:
3326         case LFUN_SELF_INSERT:
3327         case LFUN_UNICODE_INSERT:
3328         case LFUN_THESAURUS_ENTRY:
3329         case LFUN_ESCAPE:
3330         case LFUN_SERVER_GET_STATISTICS:
3331                 // these are handled in our dispatch()
3332                 enable = true;
3333                 break;
3334
3335         case LFUN_INSET_INSERT: {
3336                 string const type = cmd.getArg(0);
3337                 if (type == "toc") {
3338                         code = TOC_CODE;
3339                         // not allowed in description items
3340                         //FIXME: couldn't this be merged in Inset::insetAllowed()?
3341                         enable = !inDescriptionItem(cur);
3342                 } else {
3343                         enable = true;
3344                 }
3345                 break;
3346         }
3347
3348         default:
3349                 return false;
3350         }
3351
3352         if (code != NO_CODE
3353             && (cur.empty()
3354                 || !cur.inset().insetAllowed(code)
3355                 || (cur.paragraph().layout().pass_thru && !allow_in_passthru)))
3356                 enable = false;
3357
3358         flag.setEnabled(enable);
3359         return true;
3360 }
3361
3362
3363 void Text::pasteString(Cursor & cur, docstring const & clip,
3364                 bool asParagraphs)
3365 {
3366         if (!clip.empty()) {
3367                 cur.recordUndo();
3368                 if (asParagraphs)
3369                         insertStringAsParagraphs(cur, clip, cur.current_font);
3370                 else
3371                         insertStringAsLines(cur, clip, cur.current_font);
3372         }
3373 }
3374
3375
3376 // FIXME: an item inset would make things much easier.
3377 bool Text::inDescriptionItem(Cursor & cur) const
3378 {
3379         Paragraph & par = cur.paragraph();
3380         pos_type const pos = cur.pos();
3381         pos_type const body_pos = par.beginOfBody();
3382
3383         if (par.layout().latextype != LATEX_LIST_ENVIRONMENT
3384             && (par.layout().latextype != LATEX_ITEM_ENVIRONMENT
3385                 || par.layout().margintype != MARGIN_FIRST_DYNAMIC))
3386                 return false;
3387
3388         return (pos < body_pos
3389                 || (pos == body_pos
3390                     && (pos == 0 || par.getChar(pos - 1) != ' ')));
3391 }
3392
3393 } // namespace lyx