src/Text3.cpp

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