src/Text3.cpp

   1 /**
   2  * \file Text3.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Asger Alstrup
   7  * \author Lars Gullik Bjønnes
   8  * \author Alfredo Braunstein
   9  * \author Angus Leeming
  10  * \author John Levon
  11  * \author André Pönitz
  12  *
  13  * Full author contact details are available in file CREDITS.
  14  */
  15
  16 #include <config.h>
  17
  18 #include "Text.h"
  19
  20 #include "BranchList.h"
  21 #include "FloatList.h"
  22 #include "FuncStatus.h"
  23 #include "Buffer.h"
  24 #include "buffer_funcs.h"
  25 #include "BufferParams.h"
  26 #include "BufferView.h"
  27 #include "Changes.h"
  28 #include "Cursor.h"
  29 #include "CutAndPaste.h"
  30 #include "DispatchResult.h"
  31 #include "ErrorList.h"
  32 #include "factory.h"
  33 #include "FuncRequest.h"
  34 #include "InsetList.h"
  35 #include "Intl.h"
  36 #include "Language.h"
  37 #include "Layout.h"
  38 #include "LyXAction.h"
  39 #include "LyX.h"
  40 #include "Lexer.h"
  41 #include "LyXRC.h"
  42 #include "Paragraph.h"
  43 #include "ParagraphParameters.h"
  44 #include "SpellChecker.h"
  45 #include "TextClass.h"
  46 #include "TextMetrics.h"
  47 #include "Thesaurus.h"
  48 #include "WordLangTuple.h"
  49
  50 #include "frontends/alert.h"
  51 #include "frontends/Application.h"
  52 #include "frontends/Clipboard.h"
  53 #include "frontends/Selection.h"
  54
  55 #include "insets/InsetArgument.h"
  56 #include "insets/InsetCollapsible.h"
  57 #include "insets/InsetCommand.h"
  58 #include "insets/InsetExternal.h"
  59 #include "insets/InsetFloat.h"
  60 #include "insets/InsetFloatList.h"
  61 #include "insets/InsetGraphics.h"
  62 #include "insets/InsetGraphicsParams.h"
  63 #include "insets/InsetIPAMacro.h"
  64 #include "insets/InsetNewline.h"
  65 #include "insets/InsetQuotes.h"
  66 #include "insets/InsetSpecialChar.h"
  67 #include "insets/InsetText.h"
  68 #include "insets/InsetWrap.h"
  69
  70 #include "support/convert.h"
  71 #include "support/debug.h"
  72 #include "support/gettext.h"
  73 #include "support/lassert.h"
  74 #include "support/lstrings.h"
  75 #include "support/lyxalgo.h"
  76 #include "support/lyxtime.h"
  77 #include "support/os.h"
  78 #include "support/regex.h"
  79
  80 #include "mathed/InsetMathHull.h"
  81 #include "mathed/InsetMathMacroTemplate.h"
  82
  83 #include <clocale>
  84 #include <sstream>
  85
  86 using namespace std;
  87 using namespace lyx::support;
  88
  89 namespace lyx {
  90
  91 using cap::copySelection;
  92 using cap::cutSelection;
  93 using cap::cutSelectionToTemp;
  94 using cap::pasteFromStack;
  95 using cap::pasteFromTemp;
  96 using cap::pasteClipboardText;
  97 using cap::pasteClipboardGraphics;
  98 using cap::replaceSelection;
  99 using cap::grabAndEraseSelection;
 100 using cap::selClearOrDel;
 101 using cap::pasteSimpleText;
 102 using frontend::Clipboard;
 103
 104 // globals...
 105 static Font freefont(ignore_font, ignore_language);
 106 static bool toggleall = false;
 107
 108 static void toggleAndShow(Cursor & cur, Text * text,
 109         Font const & font, bool toggleall = true)
 110 {
 111         text->toggleFree(cur, font, toggleall);
 112
 113         if (font.language() != ignore_language ||
 114             font.fontInfo().number() != FONT_IGNORE) {
 115                 TextMetrics const & tm = cur.bv().textMetrics(text);
 116                 if (cur.boundary() != tm.isRTLBoundary(cur.pit(), cur.pos(),
 117                                                        cur.real_current_font))
 118                         text->setCursor(cur, cur.pit(), cur.pos(),
 119                                         false, !cur.boundary());
 120         }
 121 }
 122
 123
 124 static void moveCursor(Cursor & cur, bool selecting)
 125 {
 126         if (selecting || cur.mark())
 127                 cur.setSelection();
 128 }
 129
 130
 131 static void finishChange(Cursor & cur, bool selecting)
 132 {
 133         cur.finishUndo();
 134         moveCursor(cur, selecting);
 135 }
 136
 137
 138 static void mathDispatch(Cursor & cur, FuncRequest const & cmd)
 139 {
 140         cur.recordUndo();
 141         docstring sel = cur.selectionAsString(false);
 142
 143         // It may happen that sel is empty but there is a selection
 144         replaceSelection(cur);
 145
 146         // Is this a valid formula?
 147         bool valid = true;
 148
 149         if (sel.empty()) {
 150 #ifdef ENABLE_ASSERTIONS
 151                 const int old_pos = cur.pos();
 152 #endif
 153                 cur.insert(new InsetMathHull(cur.buffer(), hullSimple));
 154 #ifdef ENABLE_ASSERTIONS
 155                 LATTEST(old_pos == cur.pos());
 156 #endif
 157                 cur.nextInset()->edit(cur, true);
 158                 if (cmd.action() != LFUN_MATH_MODE)
 159                         // LFUN_MATH_MODE has a different meaning in math mode
 160                         cur.dispatch(cmd);
 161         } else {
 162                 InsetMathHull * formula = new InsetMathHull(cur.buffer());
 163                 string const selstr = to_utf8(sel);
 164                 istringstream is(selstr);
 165                 Lexer lex;
 166                 lex.setStream(is);
 167                 if (!formula->readQuiet(lex)) {
 168                         // No valid formula, let's try with delims
 169                         is.str("$" + selstr + "$");
 170                         lex.setStream(is);
 171                         if (!formula->readQuiet(lex)) {
 172                                 // Still not valid, leave it as is
 173                                 valid = false;
 174                                 delete formula;
 175                                 cur.insert(sel);
 176                         }
 177                 }
 178                 if (valid) {
 179                         cur.insert(formula);
 180                         cur.nextInset()->edit(cur, true);
 181                         LASSERT(cur.inMathed(), return);
 182                         cur.pos() = 0;
 183                         cur.resetAnchor();
 184                         cur.selection(true);
 185                         cur.pos() = cur.lastpos();
 186                         if (cmd.action() != LFUN_MATH_MODE)
 187                                 // LFUN_MATH_MODE has a different meaning in math mode
 188                                 cur.dispatch(cmd);
 189                         cur.clearSelection();
 190                         cur.pos() = cur.lastpos();
 191                 }
 192         }
 193         if (valid)
 194                 cur.message(from_utf8(N_("Math editor mode")));
 195         else
 196                 cur.message(from_utf8(N_("No valid math formula")));
 197 }
 198
 199
 200 void regexpDispatch(Cursor & cur, FuncRequest const & cmd)
 201 {
 202         LASSERT(cmd.action() == LFUN_REGEXP_MODE, return);
 203         if (cur.inRegexped()) {
 204                 cur.message(_("Already in regular expression mode"));
 205                 return;
 206         }
 207         cur.recordUndo();
 208         docstring sel = cur.selectionAsString(false);
 209
 210         // It may happen that sel is empty but there is a selection
 211         replaceSelection(cur);
 212
 213         cur.insert(new InsetMathHull(cur.buffer(), hullRegexp));
 214         cur.nextInset()->edit(cur, true);
 215         cur.niceInsert(sel);
 216
 217         cur.message(_("Regexp editor mode"));
 218 }
 219
 220
 221 static void specialChar(Cursor & cur, InsetSpecialChar::Kind kind)
 222 {
 223         cur.recordUndo();
 224         cap::replaceSelection(cur);
 225         cur.insert(new InsetSpecialChar(kind));
 226         cur.posForward();
 227 }
 228
 229
 230 static void ipaChar(Cursor & cur, InsetIPAChar::Kind kind)
 231 {
 232         cur.recordUndo();
 233         cap::replaceSelection(cur);
 234         cur.insert(new InsetIPAChar(kind));
 235         cur.posForward();
 236 }
 237
 238
 239 static bool doInsertInset(Cursor & cur, Text * text,
 240         FuncRequest const & cmd, bool edit, bool pastesel)
 241 {
 242         Buffer & buffer = cur.bv().buffer();
 243         BufferParams const & bparams = buffer.params();
 244         Inset * inset = createInset(&buffer, cmd);
 245         if (!inset)
 246                 return false;
 247
 248         if (InsetCollapsible * ci = inset->asInsetCollapsible())
 249                 ci->setButtonLabel();
 250
 251         cur.recordUndo();
 252         if (cmd.action() == LFUN_INDEX_INSERT) {
 253                 docstring ds = subst(text->getStringToIndex(cur), '\n', ' ');
 254                 text->insertInset(cur, inset);
 255                 if (edit)
 256                         inset->edit(cur, true);
 257                 // Now put this into inset
 258                 Font const f(inherit_font, cur.current_font.language());
 259                 if (!ds.empty()) {
 260                         cur.text()->insertStringAsLines(cur, ds, f);
 261                         cur.leaveInset(*inset);
 262                 }
 263                 return true;
 264         }
 265         else if (cmd.action() == LFUN_ARGUMENT_INSERT) {
 266                 bool cotextinsert = false;
 267                 InsetArgument const * const ia = static_cast<InsetArgument const *>(inset);
 268                 Layout const & lay = cur.paragraph().layout();
 269                 Layout::LaTeXArgMap args = lay.args();
 270                 Layout::LaTeXArgMap::const_iterator const lait = args.find(ia->name());
 271                 if (lait != args.end())
 272                         cotextinsert = (*lait).second.insertcotext;
 273                 else {
 274                         InsetLayout const & il = cur.inset().getLayout();
 275                         args = il.args();
 276                         Layout::LaTeXArgMap::const_iterator const ilait = args.find(ia->name());
 277                         if (ilait != args.end())
 278                                 cotextinsert = (*ilait).second.insertcotext;
 279                 }
 280                 // The argument requests to insert a copy of the co-text to the inset
 281                 if (cotextinsert) {
 282                         docstring ds;
 283                         // If we have a selection within a paragraph, use this
 284                         if (cur.selection() && cur.selBegin().pit() == cur.selEnd().pit())
 285                                 ds = cur.selectionAsString(false);
 286                         // else use the whole paragraph
 287                         else
 288                                 ds = cur.paragraph().asString();
 289                         text->insertInset(cur, inset);
 290                         if (edit)
 291                                 inset->edit(cur, true);
 292                         // Now put co-text into inset
 293                         Font const f(inherit_font, cur.current_font.language());
 294                         if (!ds.empty()) {
 295                                 cur.text()->insertStringAsLines(cur, ds, f);
 296                                 cur.leaveInset(*inset);
 297                         }
 298                         return true;
 299                 }
 300         }
 301
 302         bool gotsel = false;
 303         if (cur.selection()) {
 304                 cutSelectionToTemp(cur, false, pastesel);
 305                 cur.clearSelection();
 306                 gotsel = true;
 307         }
 308         text->insertInset(cur, inset);
 309
 310         if (edit)
 311                 inset->edit(cur, true);
 312
 313         if (!gotsel || !pastesel)
 314                 return true;
 315
 316         pasteFromTemp(cur, cur.buffer()->errorList("Paste"));
 317         cur.buffer()->errors("Paste");
 318         cur.clearSelection(); // bug 393
 319         cur.finishUndo();
 320         InsetText * inset_text = inset->asInsetText();
 321         if (inset_text) {
 322                 inset_text->fixParagraphsFont();
 323                 if (!inset_text->allowMultiPar() || cur.lastpit() == 0) {
 324                         // reset first par to default
 325                         cur.text()->paragraphs().begin()
 326                                 ->setPlainOrDefaultLayout(bparams.documentClass());
 327                         cur.pos() = 0;
 328                         cur.pit() = 0;
 329                         // Merge multiple paragraphs -- hack
 330                         while (cur.lastpit() > 0)
 331                                 mergeParagraph(bparams, cur.text()->paragraphs(), 0);
 332                         if (cmd.action() == LFUN_FLEX_INSERT)
 333                                 return true;
 334                         Cursor old = cur;
 335                         cur.leaveInset(*inset);
 336                         if (cmd.action() == LFUN_PREVIEW_INSERT
 337                             || cmd.action() == LFUN_IPA_INSERT)
 338                                 // trigger preview
 339                                 notifyCursorLeavesOrEnters(old, cur);
 340                 }
 341         } else {
 342                 cur.leaveInset(*inset);
 343                 // reset surrounding par to default
 344                 DocumentClass const & dc = bparams.documentClass();
 345                 docstring const layoutname = inset->usePlainLayout()
 346                         ? dc.plainLayoutName()
 347                         : dc.defaultLayoutName();
 348                 text->setLayout(cur, layoutname);
 349         }
 350         return true;
 351 }
 352
 353
 354 string const freefont2string()
 355 {
 356         return freefont.toString(toggleall);
 357 }
 358
 359
 360 /// the type of outline operation
 361 enum OutlineOp {
 362         OutlineUp, // Move this header with text down
 363         OutlineDown,   // Move this header with text up
 364         OutlineIn, // Make this header deeper
 365         OutlineOut // Make this header shallower
 366 };
 367
 368
 369 static void outline(OutlineOp mode, Cursor & cur)
 370 {
 371         Buffer & buf = *cur.buffer();
 372         pit_type & pit = cur.pit();
 373         ParagraphList & pars = buf.text().paragraphs();
 374         ParagraphList::iterator const bgn = pars.begin();
 375         // The first paragraph of the area to be copied:
 376         ParagraphList::iterator start = lyx::next(bgn, pit);
 377         // The final paragraph of area to be copied:
 378         ParagraphList::iterator finish = start;
 379         ParagraphList::iterator const end = pars.end();
 380
 381         int const thistoclevel = buf.text().getTocLevel(distance(bgn, start));
 382         int toclevel;
 383
 384         // Move out (down) from this section header
 385         if (finish != end)
 386                 ++finish;
 387
 388         // Seek the one (on same level) below
 389         for (; finish != end; ++finish) {
 390                 toclevel = buf.text().getTocLevel(distance(bgn, finish));
 391                 if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel)
 392                         break;
 393         }
 394
 395         switch (mode) {
 396                 case OutlineUp: {
 397                         if (start == pars.begin())
 398                                 // Nothing to move.
 399                                 return;
 400                         ParagraphList::iterator dest = start;
 401                         // Move out (up) from this header
 402                         if (dest == bgn)
 403                                 return;
 404                         // Search previous same-level header above
 405                         do {
 406                                 --dest;
 407                                 toclevel = buf.text().getTocLevel(distance(bgn, dest));
 408                         } while(dest != bgn
 409                                 && (toclevel == Layout::NOT_IN_TOC
 410                                     || toclevel > thistoclevel));
 411                         // Not found; do nothing
 412                         if (toclevel == Layout::NOT_IN_TOC || toclevel > thistoclevel)
 413                                 return;
 414                         pit_type const newpit = distance(bgn, dest);
 415                         pit_type const len = distance(start, finish);
 416                         pit_type const deletepit = pit + len;
 417                         buf.undo().recordUndo(cur, newpit, deletepit - 1);
 418                         pars.splice(dest, start, finish);
 419                         cur.pit() = newpit;
 420                         break;
 421                 }
 422                 case OutlineDown: {
 423                         if (finish == end)
 424                                 // Nothing to move.
 425                                 return;
 426                         // Go one down from *this* header:
 427                         ParagraphList::iterator dest = next(finish, 1);
 428                         // Go further down to find header to insert in front of:
 429                         for (; dest != end; ++dest) {
 430                                 toclevel = buf.text().getTocLevel(distance(bgn, dest));
 431                                 if (toclevel != Layout::NOT_IN_TOC
 432                                       && toclevel <= thistoclevel)
 433                                         break;
 434                         }
 435                         // One such was found:
 436                         pit_type newpit = distance(bgn, dest);
 437                         buf.undo().recordUndo(cur, pit, newpit - 1);
 438                         pit_type const len = distance(start, finish);
 439                         pars.splice(dest, start, finish);
 440                         cur.pit() = newpit - len;
 441                         break;
 442                 }
 443                 case OutlineIn:
 444                 case OutlineOut: {
 445                         pit_type const len = distance(start, finish);
 446                         buf.undo().recordUndo(cur, pit, pit + len - 1);
 447                         for (; start != finish; ++start) {
 448                                 toclevel = buf.text().getTocLevel(distance(bgn, start));
 449                                 if (toclevel == Layout::NOT_IN_TOC)
 450                                         continue;
 451
 452                                 DocumentClass const & tc = buf.params().documentClass();
 453                                 DocumentClass::const_iterator lit = tc.begin();
 454                                 DocumentClass::const_iterator len = tc.end();
 455                                 int const newtoclevel =
 456                                         (mode == OutlineIn ? toclevel + 1 : toclevel - 1);
 457                                 LabelType const oldlabeltype = start->layout().labeltype;
 458
 459                                 for (; lit != len; ++lit) {
 460                                         if (lit->toclevel ==  newtoclevel &&
 461                                              lit->labeltype == oldlabeltype) {
 462                                                 start->setLayout(*lit);
 463                                                 break;
 464                                         }
 465                                 }
 466                         }
 467                         break;
 468                 }
 469         }
 470 }
 471
 472
 473 void Text::number(Cursor & cur)
 474 {
 475         FontInfo font = ignore_font;
 476         font.setNumber(FONT_TOGGLE);
 477         toggleAndShow(cur, this, Font(font, ignore_language));
 478 }
 479
 480
 481 bool Text::isRTL(Paragraph const & par) const
 482 {
 483         Buffer const & buffer = owner_->buffer();
 484         return par.isRTL(buffer.params());
 485 }
 486
 487
 488 namespace {
 489
 490         Language const * getLanguage(Cursor const & cur, string const & lang) {
 491                 return lang.empty() ? cur.getFont().language() : languages.getLanguage(lang);
 492         }
 493
 494 } // namespace
 495
 496
 497 void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 498 {
 499         LYXERR(Debug::ACTION, "Text::dispatch: cmd: " << cmd);
 500
 501         // Dispatch if the cursor is inside the text. It is not the
 502         // case for context menus (bug 5797).
 503         if (cur.text() != this) {
 504                 cur.undispatched();
 505                 return;
 506         }
 507
 508         BufferView * bv = &cur.bv();
 509         TextMetrics * tm = &bv->textMetrics(this);
 510         if (!tm->contains(cur.pit())) {
 511                 lyx::dispatch(FuncRequest(LFUN_SCREEN_SHOW_CURSOR));
 512                 tm = &bv->textMetrics(this);
 513         }
 514
 515         // FIXME: We use the update flag to indicates wether a singlePar or a
 516         // full screen update is needed. We reset it here but shall we restore it
 517         // at the end?
 518         cur.noScreenUpdate();
 519
 520         LBUFERR(this == cur.text());
 521
 522         // NOTE: This should NOT be a reference. See commit 94a5481a.
 523         CursorSlice const oldTopSlice = cur.top();
 524         bool const oldBoundary = cur.boundary();
 525         bool const oldSelection = cur.selection();
 526         // Signals that, even if needsUpdate == false, an update of the
 527         // cursor paragraph is required
 528         bool singleParUpdate = lyxaction.funcHasFlag(cmd.action(),
 529                 LyXAction::SingleParUpdate);
 530         // Signals that a full-screen update is required
 531         bool needsUpdate = !(lyxaction.funcHasFlag(cmd.action(),
 532                 LyXAction::NoUpdate) || singleParUpdate);
 533         bool const last_misspelled = lyxrc.spellcheck_continuously
 534                 && cur.paragraph().isMisspelled(cur.pos(), true);
 535
 536         FuncCode const act = cmd.action();
 537         switch (act) {
 538
 539         case LFUN_PARAGRAPH_MOVE_DOWN: {
 540                 pit_type const pit = cur.pit();
 541                 cur.recordUndo(pit, pit + 1);
 542                 cur.finishUndo();
 543                 pars_.swap(pit, pit + 1);
 544                 needsUpdate = true;
 545                 cur.forceBufferUpdate();
 546                 ++cur.pit();
 547                 break;
 548         }
 549
 550         case LFUN_PARAGRAPH_MOVE_UP: {
 551                 pit_type const pit = cur.pit();
 552                 cur.recordUndo(pit - 1, pit);
 553                 cur.finishUndo();
 554                 pars_.swap(pit, pit - 1);
 555                 --cur.pit();
 556                 needsUpdate = true;
 557                 cur.forceBufferUpdate();
 558                 break;
 559         }
 560
 561         case LFUN_APPENDIX: {
 562                 Paragraph & par = cur.paragraph();
 563                 bool start = !par.params().startOfAppendix();
 564
 565 // FIXME: The code below only makes sense at top level.
 566 // Should LFUN_APPENDIX be restricted to top-level paragraphs?
 567                 // ensure that we have only one start_of_appendix in this document
 568                 // FIXME: this don't work for multipart document!
 569                 for (pit_type tmp = 0, end = pars_.size(); tmp != end; ++tmp) {
 570                         if (pars_[tmp].params().startOfAppendix()) {
 571                                 cur.recordUndo(tmp, tmp);
 572                                 pars_[tmp].params().startOfAppendix(false);
 573                                 break;
 574                         }
 575                 }
 576
 577                 cur.recordUndo();
 578                 par.params().startOfAppendix(start);
 579
 580                 // we can set the refreshing parameters now
 581                 cur.forceBufferUpdate();
 582                 break;
 583         }
 584
 585         case LFUN_WORD_DELETE_FORWARD:
 586                 if (cur.selection())
 587                         cutSelection(cur, true, false);
 588                 else
 589                         deleteWordForward(cur, cmd.getArg(0) == "force");
 590                 finishChange(cur, false);
 591                 break;
 592
 593         case LFUN_WORD_DELETE_BACKWARD:
 594                 if (cur.selection())
 595                         cutSelection(cur, true, false);
 596                 else
 597                         deleteWordBackward(cur, cmd.getArg(0) == "force");
 598                 finishChange(cur, false);
 599                 break;
 600
 601         case LFUN_LINE_DELETE_FORWARD:
 602                 if (cur.selection())
 603                         cutSelection(cur, true, false);
 604                 else
 605                         tm->deleteLineForward(cur);
 606                 finishChange(cur, false);
 607                 break;
 608
 609         case LFUN_BUFFER_BEGIN:
 610         case LFUN_BUFFER_BEGIN_SELECT:
 611                 needsUpdate |= cur.selHandle(act == LFUN_BUFFER_BEGIN_SELECT);
 612                 if (cur.depth() == 1)
 613                         needsUpdate |= cursorTop(cur);
 614                 else
 615                         cur.undispatched();
 616                 cur.screenUpdateFlags(Update::FitCursor);
 617                 break;
 618
 619         case LFUN_BUFFER_END:
 620         case LFUN_BUFFER_END_SELECT:
 621                 needsUpdate |= cur.selHandle(act == LFUN_BUFFER_END_SELECT);
 622                 if (cur.depth() == 1)
 623                         needsUpdate |= cursorBottom(cur);
 624                 else
 625                         cur.undispatched();
 626                 cur.screenUpdateFlags(Update::FitCursor);
 627                 break;
 628
 629         case LFUN_INSET_BEGIN:
 630         case LFUN_INSET_BEGIN_SELECT:
 631                 needsUpdate |= cur.selHandle(act == LFUN_INSET_BEGIN_SELECT);
 632                 if (cur.depth() == 1 || !cur.top().at_begin())
 633                         needsUpdate |= cursorTop(cur);
 634                 else
 635                         cur.undispatched();
 636                 cur.screenUpdateFlags(Update::FitCursor);
 637                 break;
 638
 639         case LFUN_INSET_END:
 640         case LFUN_INSET_END_SELECT:
 641                 needsUpdate |= cur.selHandle(act == LFUN_INSET_END_SELECT);
 642                 if (cur.depth() == 1 || !cur.top().at_end())
 643                         needsUpdate |= cursorBottom(cur);
 644                 else
 645                         cur.undispatched();
 646                 cur.screenUpdateFlags(Update::FitCursor);
 647                 break;
 648
 649         case LFUN_CHAR_FORWARD:
 650         case LFUN_CHAR_FORWARD_SELECT: {
 651                 //LYXERR0(" LFUN_CHAR_FORWARD[SEL]:\n" << cur);
 652                 needsUpdate |= cur.selHandle(act == LFUN_CHAR_FORWARD_SELECT);
 653                 bool const cur_moved = cursorForward(cur);
 654                 needsUpdate |= cur_moved;
 655
 656                 if (!cur_moved && oldTopSlice == cur.top()
 657                                && cur.boundary() == oldBoundary) {
 658                         cur.undispatched();
 659                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 660
 661                         // we will probably be moving out the inset, so we should execute
 662                         // the depm-mechanism, but only when the cursor has a place to
 663                         // go outside this inset, i.e. in a slice above.
 664                         if (cur.depth() > 1 && cur.pos() == cur.lastpos()
 665                                   && cur.pit() == cur.lastpit()) {
 666                                 // The cursor hasn't changed yet. To give the
 667                                 // DEPM the possibility of doing something we must
 668                                 // provide it with two different cursors.
 669                                 Cursor dummy = cur;
 670                                 dummy.pos() = dummy.pit() = 0;
 671                                 if (cur.bv().checkDepm(dummy, cur))
 672                                         cur.forceBufferUpdate();
 673                         }
 674                 }
 675                 break;
 676         }
 677
 678         case LFUN_CHAR_BACKWARD:
 679         case LFUN_CHAR_BACKWARD_SELECT: {
 680                 //lyxerr << "handle LFUN_CHAR_BACKWARD[_SELECT]:\n" << cur << endl;
 681                 needsUpdate |= cur.selHandle(act == LFUN_CHAR_BACKWARD_SELECT);
 682                 bool const cur_moved = cursorBackward(cur);
 683                 needsUpdate |= cur_moved;
 684
 685                 if (!cur_moved && oldTopSlice == cur.top()
 686                                && cur.boundary() == oldBoundary) {
 687                         cur.undispatched();
 688                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
 689
 690                         // we will probably be moving out the inset, so we should execute
 691                         // the depm-mechanism, but only when the cursor has a place to
 692                         // go outside this inset, i.e. in a slice above.
 693                         if (cur.depth() > 1 && cur.pos() == 0 && cur.pit() == 0) {
 694                                 // The cursor hasn't changed yet. To give the
 695                                 // DEPM the possibility of doing something we must
 696                                 // provide it with two different cursors.
 697                                 Cursor dummy = cur;
 698                                 dummy.pos() = cur.lastpos();
 699                                 dummy.pit() = cur.lastpit();
 700                                 if (cur.bv().checkDepm(dummy, cur))
 701                                         cur.forceBufferUpdate();
 702                         }
 703                 }
 704                 break;
 705         }
 706
 707         case LFUN_CHAR_LEFT:
 708         case LFUN_CHAR_LEFT_SELECT:
 709                 if (lyxrc.visual_cursor) {
 710                         needsUpdate |= cur.selHandle(act == LFUN_CHAR_LEFT_SELECT);
 711                         bool const cur_moved = cursorVisLeft(cur);
 712                         needsUpdate |= cur_moved;
 713                         if (!cur_moved && oldTopSlice == cur.top()
 714                                        && cur.boundary() == oldBoundary) {
 715                                 cur.undispatched();
 716                                 cmd = FuncRequest(LFUN_FINISHED_LEFT);
 717                         }
 718                 } else {
 719                         if (cur.reverseDirectionNeeded()) {
 720                                 cmd.setAction(cmd.action() == LFUN_CHAR_LEFT_SELECT ?
 721                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD);
 722                         } else {
 723                                 cmd.setAction(cmd.action() == LFUN_CHAR_LEFT_SELECT ?
 724                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD);
 725                         }
 726                         dispatch(cur, cmd);
 727                         return;
 728                 }
 729                 break;
 730
 731         case LFUN_CHAR_RIGHT:
 732         case LFUN_CHAR_RIGHT_SELECT:
 733                 if (lyxrc.visual_cursor) {
 734                         needsUpdate |= cur.selHandle(cmd.action() == LFUN_CHAR_RIGHT_SELECT);
 735                         bool const cur_moved = cursorVisRight(cur);
 736                         needsUpdate |= cur_moved;
 737                         if (!cur_moved && oldTopSlice == cur.top()
 738                                        && cur.boundary() == oldBoundary) {
 739                                 cur.undispatched();
 740                                 cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 741                         }
 742                 } else {
 743                         if (cur.reverseDirectionNeeded()) {
 744                                 cmd.setAction(cmd.action() == LFUN_CHAR_RIGHT_SELECT ?
 745                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD);
 746                         } else {
 747                                 cmd.setAction(cmd.action() == LFUN_CHAR_RIGHT_SELECT ?
 748                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD);
 749                         }
 750                         dispatch(cur, cmd);
 751                         return;
 752                 }
 753                 break;
 754
 755
 756         case LFUN_UP_SELECT:
 757         case LFUN_DOWN_SELECT:
 758         case LFUN_UP:
 759         case LFUN_DOWN: {
 760                 // stop/start the selection
 761                 bool select = cmd.action() == LFUN_DOWN_SELECT ||
 762                         cmd.action() == LFUN_UP_SELECT;
 763
 764                 // move cursor up/down
 765                 bool up = cmd.action() == LFUN_UP_SELECT || cmd.action() == LFUN_UP;
 766                 bool const atFirstOrLastRow = cur.atFirstOrLastRow(up);
 767
 768                 if (!atFirstOrLastRow) {
 769                         needsUpdate |= cur.selHandle(select);
 770                         cur.upDownInText(up, needsUpdate);
 771                         needsUpdate |= cur.beforeDispatchCursor().inMathed();
 772                 } else {
 773                         pos_type newpos = up ? 0 : cur.lastpos();
 774                         if (lyxrc.mac_like_cursor_movement && cur.pos() != newpos) {
 775                                 needsUpdate |= cur.selHandle(select);
 776                                 // we do not reset the targetx of the cursor
 777                                 cur.pos() = newpos;
 778                                 needsUpdate |= bv->checkDepm(cur, bv->cursor());
 779                                 cur.updateTextTargetOffset();
 780                                 if (needsUpdate)
 781                                         cur.forceBufferUpdate();
 782                                 break;
 783                         }
 784
 785                         // if the cursor cannot be moved up or down do not remove
 786                         // the selection right now, but wait for the next dispatch.
 787                         if (select)
 788                                 needsUpdate |= cur.selHandle(select);
 789                         cur.upDownInText(up, needsUpdate);
 790                         cur.undispatched();
 791                 }
 792
 793                 break;
 794         }
 795
 796         case LFUN_PARAGRAPH_UP:
 797         case LFUN_PARAGRAPH_UP_SELECT:
 798                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_PARAGRAPH_UP_SELECT);
 799                 needsUpdate |= cursorUpParagraph(cur);
 800                 break;
 801
 802         case LFUN_PARAGRAPH_DOWN:
 803         case LFUN_PARAGRAPH_DOWN_SELECT:
 804                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_PARAGRAPH_DOWN_SELECT);
 805                 needsUpdate |= cursorDownParagraph(cur);
 806                 break;
 807
 808         case LFUN_LINE_BEGIN:
 809         case LFUN_LINE_BEGIN_SELECT:
 810                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_LINE_BEGIN_SELECT);
 811                 needsUpdate |= tm->cursorHome(cur);
 812                 break;
 813
 814         case LFUN_LINE_END:
 815         case LFUN_LINE_END_SELECT:
 816                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_LINE_END_SELECT);
 817                 needsUpdate |= tm->cursorEnd(cur);
 818                 break;
 819
 820         case LFUN_SECTION_SELECT: {
 821                 Buffer const & buf = *cur.buffer();
 822                 pit_type const pit = cur.pit();
 823                 ParagraphList & pars = buf.text().paragraphs();
 824                 ParagraphList::iterator bgn = pars.begin();
 825                 // The first paragraph of the area to be selected:
 826                 ParagraphList::iterator start = lyx::next(bgn, pit);
 827                 // The final paragraph of area to be selected:
 828                 ParagraphList::iterator finish = start;
 829                 ParagraphList::iterator end = pars.end();
 830
 831                 int const thistoclevel = buf.text().getTocLevel(distance(bgn, start));
 832                 if (thistoclevel == Layout::NOT_IN_TOC)
 833                         break;
 834
 835                 cur.pos() = 0;
 836                 Cursor const old_cur = cur;
 837                 needsUpdate |= cur.selHandle(true);
 838
 839                 // Move out (down) from this section header
 840                 if (finish != end)
 841                         ++finish;
 842
 843                 // Seek the one (on same level) below
 844                 for (; finish != end; ++finish, ++cur.pit()) {
 845                         int const toclevel = buf.text().getTocLevel(distance(bgn, finish));
 846                         if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel)
 847                                 break;
 848                 }
 849                 cur.pos() = cur.lastpos();
 850                 cur.boundary(false);
 851                 cur.setCurrentFont();
 852
 853                 needsUpdate |= cur != old_cur;
 854                 break;
 855         }
 856
 857         case LFUN_WORD_RIGHT:
 858         case LFUN_WORD_RIGHT_SELECT:
 859                 if (lyxrc.visual_cursor) {
 860                         needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_RIGHT_SELECT);
 861                         bool const cur_moved = cursorVisRightOneWord(cur);
 862                         needsUpdate |= cur_moved;
 863                         if (!cur_moved && oldTopSlice == cur.top()
 864                                        && cur.boundary() == oldBoundary) {
 865                                 cur.undispatched();
 866                                 cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 867                         }
 868                 } else {
 869                         if (cur.reverseDirectionNeeded()) {
 870                                 cmd.setAction(cmd.action() == LFUN_WORD_RIGHT_SELECT ?
 871                                                 LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD);
 872                         } else {
 873                                 cmd.setAction(cmd.action() == LFUN_WORD_RIGHT_SELECT ?
 874                                                 LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD);
 875                         }
 876                         dispatch(cur, cmd);
 877                         return;
 878                 }
 879                 break;
 880
 881         case LFUN_WORD_FORWARD:
 882         case LFUN_WORD_FORWARD_SELECT: {
 883                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_FORWARD_SELECT);
 884                 bool const cur_moved = cursorForwardOneWord(cur);
 885                 needsUpdate |= cur_moved;
 886
 887                 if (!cur_moved && oldTopSlice == cur.top()
 888                                && cur.boundary() == oldBoundary) {
 889                         cur.undispatched();
 890                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 891
 892                         // we will probably be moving out the inset, so we should execute
 893                         // the depm-mechanism, but only when the cursor has a place to
 894                         // go outside this inset, i.e. in a slice above.
 895                         if (cur.depth() > 1 && cur.pos() == cur.lastpos()
 896                                   && cur.pit() == cur.lastpit()) {
 897                                 // The cursor hasn't changed yet. To give the
 898                                 // DEPM the possibility of doing something we must
 899                                 // provide it with two different cursors.
 900                                 Cursor dummy = cur;
 901                                 dummy.pos() = dummy.pit() = 0;
 902                                 if (cur.bv().checkDepm(dummy, cur))
 903                                         cur.forceBufferUpdate();
 904                         }
 905                 }
 906                 break;
 907         }
 908
 909         case LFUN_WORD_LEFT:
 910         case LFUN_WORD_LEFT_SELECT:
 911                 if (lyxrc.visual_cursor) {
 912                         needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_LEFT_SELECT);
 913                         bool const cur_moved = cursorVisLeftOneWord(cur);
 914                         needsUpdate |= cur_moved;
 915                         if (!cur_moved && oldTopSlice == cur.top()
 916                                        && cur.boundary() == oldBoundary) {
 917                                 cur.undispatched();
 918                                 cmd = FuncRequest(LFUN_FINISHED_LEFT);
 919                         }
 920                 } else {
 921                         if (cur.reverseDirectionNeeded()) {
 922                                 cmd.setAction(cmd.action() == LFUN_WORD_LEFT_SELECT ?
 923                                                 LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD);
 924                         } else {
 925                                 cmd.setAction(cmd.action() == LFUN_WORD_LEFT_SELECT ?
 926                                                 LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD);
 927                         }
 928                         dispatch(cur, cmd);
 929                         return;
 930                 }
 931                 break;
 932
 933         case LFUN_WORD_BACKWARD:
 934         case LFUN_WORD_BACKWARD_SELECT: {
 935                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_BACKWARD_SELECT);
 936                 bool const cur_moved = cursorBackwardOneWord(cur);
 937                 needsUpdate |= cur_moved;
 938
 939                 if (!cur_moved && oldTopSlice == cur.top()
 940                                && cur.boundary() == oldBoundary) {
 941                         cur.undispatched();
 942                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
 943
 944                         // we will probably be moving out the inset, so we should execute
 945                         // the depm-mechanism, but only when the cursor has a place to
 946                         // go outside this inset, i.e. in a slice above.
 947                         if (cur.depth() > 1 && cur.pos() == 0
 948                                   && cur.pit() == 0) {
 949                                 // The cursor hasn't changed yet. To give the
 950                                 // DEPM the possibility of doing something we must
 951                                 // provide it with two different cursors.
 952                                 Cursor dummy = cur;
 953                                 dummy.pos() = cur.lastpos();
 954                                 dummy.pit() = cur.lastpit();
 955                                 if (cur.bv().checkDepm(dummy, cur))
 956                                         cur.forceBufferUpdate();
 957                         }
 958                 }
 959                 break;
 960         }
 961
 962         case LFUN_WORD_SELECT: {
 963                 selectWord(cur, WHOLE_WORD);
 964                 finishChange(cur, true);
 965                 break;
 966         }
 967
 968         case LFUN_NEWLINE_INSERT: {
 969                 InsetNewlineParams inp;
 970                 docstring arg = cmd.argument();
 971                 if (arg == "linebreak")
 972                         inp.kind = InsetNewlineParams::LINEBREAK;
 973                 else
 974                         inp.kind = InsetNewlineParams::NEWLINE;
 975                 cap::replaceSelection(cur);
 976                 cur.recordUndo();
 977                 cur.insert(new InsetNewline(inp));
 978                 cur.posForward();
 979                 moveCursor(cur, false);
 980                 break;
 981         }
 982
 983         case LFUN_TAB_INSERT: {
 984                 bool const multi_par_selection = cur.selection() &&
 985                         cur.selBegin().pit() != cur.selEnd().pit();
 986                 if (multi_par_selection) {
 987                         // If there is a multi-paragraph selection, a tab is inserted
 988                         // at the beginning of each paragraph.
 989                         cur.recordUndoSelection();
 990                         pit_type const pit_end = cur.selEnd().pit();
 991                         for (pit_type pit = cur.selBegin().pit(); pit <= pit_end; pit++) {
 992                                 pars_[pit].insertChar(0, '\t',
 993                                                       bv->buffer().params().track_changes);
 994                                 // Update the selection pos to make sure the selection does not
 995                                 // change as the inserted tab will increase the logical pos.
 996                                 if (cur.realAnchor().pit() == pit)
 997                                         cur.realAnchor().forwardPos();
 998                                 if (cur.pit() == pit)
 999                                         cur.forwardPos();
1000                         }
1001                         cur.finishUndo();
1002                 } else {
1003                         // Maybe we shouldn't allow tabs within a line, because they
1004                         // are not (yet) aligned as one might do expect.
1005                         FuncRequest cmd(LFUN_SELF_INSERT, from_ascii("\t"));
1006                         dispatch(cur, cmd);
1007                 }
1008                 break;
1009         }
1010
1011         case LFUN_TAB_DELETE: {
1012                 bool const tc = bv->buffer().params().track_changes;
1013                 if (cur.selection()) {
1014                         // If there is a selection, a tab (if present) is removed from
1015                         // the beginning of each paragraph.
1016                         cur.recordUndoSelection();
1017                         pit_type const pit_end = cur.selEnd().pit();
1018                         for (pit_type pit = cur.selBegin().pit(); pit <= pit_end; pit++) {
1019                                 Paragraph & par = paragraphs()[pit];
1020                                 if (par.empty())
1021                                         continue;
1022                                 char_type const c = par.getChar(0);
1023                                 if (c == '\t' || c == ' ') {
1024                                         // remove either 1 tab or 4 spaces.
1025                                         int const n = (c == ' ' ? 4 : 1);
1026                                         for (int i = 0; i < n
1027                                                   && !par.empty() && par.getChar(0) == c; ++i) {
1028                                                 if (cur.pit() == pit)
1029                                                         cur.posBackward();
1030                                                 if (cur.realAnchor().pit() == pit
1031                                                           && cur.realAnchor().pos() > 0 )
1032                                                         cur.realAnchor().backwardPos();
1033                                                 par.eraseChar(0, tc);
1034                                         }
1035                                 }
1036                         }
1037                         cur.finishUndo();
1038                 } else {
1039                         // If there is no selection, try to remove a tab or some spaces
1040                         // before the position of the cursor.
1041                         Paragraph & par = paragraphs()[cur.pit()];
1042                         pos_type const pos = cur.pos();
1043
1044                         if (pos == 0)
1045                                 break;
1046
1047                         char_type const c = par.getChar(pos - 1);
1048                         cur.recordUndo();
1049                         if (c == '\t') {
1050                                 cur.posBackward();
1051                                 par.eraseChar(cur.pos(), tc);
1052                         } else
1053                                 for (int n_spaces = 0;
1054                                      cur.pos() > 0
1055                                              && par.getChar(cur.pos() - 1) == ' '
1056                                              && n_spaces < 4;
1057                                      ++n_spaces) {
1058                                         cur.posBackward();
1059                                         par.eraseChar(cur.pos(), tc);
1060                                 }
1061                         cur.finishUndo();
1062                 }
1063                 break;
1064         }
1065
1066         case LFUN_CHAR_DELETE_FORWARD:
1067                 if (!cur.selection()) {
1068                         if (cur.pos() == cur.paragraph().size())
1069                                 // Par boundary, force full-screen update
1070                                 singleParUpdate = false;
1071                         else if (cmd.getArg(0) != "force" && cur.confirmDeletion()) {
1072                                 cur.resetAnchor();
1073                                 cur.selection(true);
1074                                 cur.posForward();
1075                                 cur.setSelection();
1076                                 break;
1077                         }
1078                         needsUpdate |= erase(cur);
1079                         cur.resetAnchor();
1080                 } else {
1081                         cutSelection(cur, true, false);
1082                         singleParUpdate = false;
1083                 }
1084                 moveCursor(cur, false);
1085                 break;
1086
1087         case LFUN_CHAR_DELETE_BACKWARD:
1088                 if (!cur.selection()) {
1089                         if (bv->getIntl().getTransManager().backspace()) {
1090                                 bool par_boundary = cur.pos() == 0;
1091                                 bool first_par = cur.pit() == 0;
1092                                 // Par boundary, full-screen update
1093                                 if (par_boundary)
1094                                         singleParUpdate = false;
1095                                 else if (cmd.getArg(0) != "force" && cur.confirmDeletion(true)) {
1096                                         cur.resetAnchor();
1097                                         cur.selection(true);
1098                                         cur.posBackward();
1099                                         cur.setSelection();
1100                                         break;
1101                                 }
1102                                 needsUpdate |= backspace(cur);
1103                                 cur.resetAnchor();
1104                                 if (par_boundary && !first_par && cur.pos() > 0
1105                                     && cur.paragraph().isEnvSeparator(cur.pos() - 1)) {
1106                                         needsUpdate |= backspace(cur);
1107                                         cur.resetAnchor();
1108                                 }
1109                         }
1110                 } else {
1111                         cutSelection(cur, true, false);
1112                         singleParUpdate = false;
1113                 }
1114                 break;
1115
1116         case LFUN_PARAGRAPH_BREAK: {
1117                 cap::replaceSelection(cur);
1118                 pit_type pit = cur.pit();
1119                 Paragraph const & par = pars_[pit];
1120                 bool lastpar = (pit == pit_type(pars_.size() - 1));
1121                 Paragraph const & nextpar = lastpar ? par : pars_[pit + 1];
1122                 pit_type prev = pit > 0 ? depthHook(pit, par.getDepth()) : pit;
1123                 if (prev < pit && cur.pos() == par.beginOfBody()
1124                     && !par.size() && !par.isEnvSeparator(cur.pos())
1125                     && !par.layout().isCommand()
1126                     && pars_[prev].layout() != par.layout()
1127                     && pars_[prev].layout().isEnvironment()
1128                     && !nextpar.isEnvSeparator(nextpar.beginOfBody())) {
1129                         if (par.layout().isEnvironment()
1130                             && pars_[prev].getDepth() == par.getDepth()) {
1131                                 docstring const layout = par.layout().name();
1132                                 DocumentClass const & tc = bv->buffer().params().documentClass();
1133                                 lyx::dispatch(FuncRequest(LFUN_LAYOUT, tc.plainLayout().name()));
1134                                 lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "plain"));
1135                                 lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse"));
1136                                 lyx::dispatch(FuncRequest(LFUN_LAYOUT, layout));
1137                         } else {
1138                                 lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "plain"));
1139                                 breakParagraph(cur);
1140                         }
1141                         Font const f(inherit_font, cur.current_font.language());
1142                         pars_[cur.pit() - 1].resetFonts(f);
1143                 } else {
1144                         if (par.isEnvSeparator(cur.pos()) && cmd.getArg(1) != "ignoresep")
1145                                 cur.posForward();
1146                         breakParagraph(cur, cmd.getArg(0) == "inverse");
1147                 }
1148                 cur.resetAnchor();
1149                 // If we have a list and autoinsert item insets,
1150                 // insert them now.
1151                 Layout::LaTeXArgMap args = par.layout().args();
1152                 Layout::LaTeXArgMap::const_iterator lait = args.begin();
1153                 Layout::LaTeXArgMap::const_iterator const laend = args.end();
1154                 for (; lait != laend; ++lait) {
1155                         Layout::latexarg arg = (*lait).second;
1156                         if (arg.autoinsert && prefixIs((*lait).first, "item:")) {
1157                                 FuncRequest cmd(LFUN_ARGUMENT_INSERT, (*lait).first);
1158                                 lyx::dispatch(cmd);
1159                         }
1160                 }
1161                 break;
1162         }
1163
1164         case LFUN_INSET_INSERT: {
1165                 cur.recordUndo();
1166
1167                 // We have to avoid triggering InstantPreview loading
1168                 // before inserting into the document. See bug #5626.
1169                 bool loaded = bv->buffer().isFullyLoaded();
1170                 bv->buffer().setFullyLoaded(false);
1171                 Inset * inset = createInset(&bv->buffer(), cmd);
1172                 bv->buffer().setFullyLoaded(loaded);
1173
1174                 if (inset) {
1175                         // FIXME (Abdel 01/02/2006):
1176                         // What follows would be a partial fix for bug 2154:
1177                         //   http://www.lyx.org/trac/ticket/2154
1178                         // This automatically put the label inset _after_ a
1179                         // numbered section. It should be possible to extend the mechanism
1180                         // to any kind of LateX environement.
1181                         // The correct way to fix that bug would be at LateX generation.
1182                         // I'll let the code here for reference as it could be used for some
1183                         // other feature like "automatic labelling".
1184                         /*
1185                         Paragraph & par = pars_[cur.pit()];
1186                         if (inset->lyxCode() == LABEL_CODE
1187                                 && !par.layout().counter.empty()) {
1188                                 // Go to the end of the paragraph
1189                                 // Warning: Because of Change-Tracking, the last
1190                                 // position is 'size()' and not 'size()-1':
1191                                 cur.pos() = par.size();
1192                                 // Insert a new paragraph
1193                                 FuncRequest fr(LFUN_PARAGRAPH_BREAK);
1194                                 dispatch(cur, fr);
1195                         }
1196                         */
1197                         if (cur.selection())
1198                                 cutSelection(cur, true, false);
1199                         cur.insert(inset);
1200                         if (inset->editable() && inset->asInsetText())
1201                                 inset->edit(cur, true);
1202                         else
1203                                 cur.posForward();
1204
1205                         // trigger InstantPreview now
1206                         if (inset->lyxCode() == EXTERNAL_CODE) {
1207                                 InsetExternal & ins =
1208                                         static_cast<InsetExternal &>(*inset);
1209                                 ins.updatePreview();
1210                         }
1211                 }
1212
1213                 break;
1214         }
1215
1216         case LFUN_INSET_DISSOLVE: {
1217                 if (dissolveInset(cur)) {
1218                         needsUpdate = true;
1219                         cur.forceBufferUpdate();
1220                 }
1221                 break;
1222         }
1223
1224         case LFUN_SET_GRAPHICS_GROUP: {
1225                 InsetGraphics * ins = graphics::getCurrentGraphicsInset(cur);
1226                 if (!ins)
1227                         break;
1228
1229                 cur.recordUndo();
1230
1231                 string id = to_utf8(cmd.argument());
1232                 string grp = graphics::getGroupParams(bv->buffer(), id);
1233                 InsetGraphicsParams tmp, inspar = ins->getParams();
1234
1235                 if (id.empty())
1236                         inspar.groupId = to_utf8(cmd.argument());
1237                 else {
1238                         InsetGraphics::string2params(grp, bv->buffer(), tmp);
1239                         tmp.filename = inspar.filename;
1240                         inspar = tmp;
1241                 }
1242
1243                 ins->setParams(inspar);
1244                 break;
1245         }
1246
1247         case LFUN_SPACE_INSERT:
1248                 if (cur.paragraph().layout().free_spacing)
1249                         insertChar(cur, ' ');
1250                 else {
1251                         doInsertInset(cur, this, cmd, false, false);
1252                         cur.posForward();
1253                 }
1254                 moveCursor(cur, false);
1255                 break;
1256
1257         case LFUN_SPECIALCHAR_INSERT: {
1258                 string const name = to_utf8(cmd.argument());
1259                 if (name == "hyphenation")
1260                         specialChar(cur, InsetSpecialChar::HYPHENATION);
1261                 else if (name == "allowbreak")
1262                         specialChar(cur, InsetSpecialChar::ALLOWBREAK);
1263                 else if (name == "ligature-break")
1264                         specialChar(cur, InsetSpecialChar::LIGATURE_BREAK);
1265                 else if (name == "slash")
1266                         specialChar(cur, InsetSpecialChar::SLASH);
1267                 else if (name == "nobreakdash")
1268                         specialChar(cur, InsetSpecialChar::NOBREAKDASH);
1269                 else if (name == "dots")
1270                         specialChar(cur, InsetSpecialChar::LDOTS);
1271                 else if (name == "end-of-sentence")
1272                         specialChar(cur, InsetSpecialChar::END_OF_SENTENCE);
1273                 else if (name == "menu-separator")
1274                         specialChar(cur, InsetSpecialChar::MENU_SEPARATOR);
1275                 else if (name == "lyx")
1276                         specialChar(cur, InsetSpecialChar::PHRASE_LYX);
1277                 else if (name == "tex")
1278                         specialChar(cur, InsetSpecialChar::PHRASE_TEX);
1279                 else if (name == "latex")
1280                         specialChar(cur, InsetSpecialChar::PHRASE_LATEX);
1281                 else if (name == "latex2e")
1282                         specialChar(cur, InsetSpecialChar::PHRASE_LATEX2E);
1283                 else if (name.empty())
1284                         lyxerr << "LyX function 'specialchar-insert' needs an argument." << endl;
1285                 else
1286                         lyxerr << "Wrong argument for LyX function 'specialchar-insert'." << endl;
1287                 break;
1288         }
1289
1290         case LFUN_IPAMACRO_INSERT: {
1291                 string const arg = cmd.getArg(0);
1292                 if (arg == "deco") {
1293                         // Open the inset, and move the current selection
1294                         // inside it.
1295                         doInsertInset(cur, this, cmd, true, true);
1296                         cur.posForward();
1297                         // Some insets are numbered, others are shown in the outline pane so
1298                         // let's update the labels and the toc backend.
1299                         cur.forceBufferUpdate();
1300                         break;
1301                 }
1302                 if (arg == "tone-falling")
1303                         ipaChar(cur, InsetIPAChar::TONE_FALLING);
1304                 else if (arg == "tone-rising")
1305                         ipaChar(cur, InsetIPAChar::TONE_RISING);
1306                 else if (arg == "tone-high-rising")
1307                         ipaChar(cur, InsetIPAChar::TONE_HIGH_RISING);
1308                 else if (arg == "tone-low-rising")
1309                         ipaChar(cur, InsetIPAChar::TONE_LOW_RISING);
1310                 else if (arg == "tone-high-rising-falling")
1311                         ipaChar(cur, InsetIPAChar::TONE_HIGH_RISING_FALLING);
1312                 else if (arg.empty())
1313                         lyxerr << "LyX function 'ipamacro-insert' needs an argument." << endl;
1314                 else
1315                         lyxerr << "Wrong argument for LyX function 'ipamacro-insert'." << endl;
1316                 break;
1317         }
1318
1319         case LFUN_WORD_UPCASE:
1320                 changeCase(cur, text_uppercase, cmd.getArg(0) == "partial");
1321                 break;
1322
1323         case LFUN_WORD_LOWCASE:
1324                 changeCase(cur, text_lowercase, cmd.getArg(0) == "partial");
1325                 break;
1326
1327         case LFUN_WORD_CAPITALIZE:
1328                 changeCase(cur, text_capitalization, cmd.getArg(0) == "partial");
1329                 break;
1330
1331         case LFUN_CHARS_TRANSPOSE:
1332                 charsTranspose(cur);
1333                 break;
1334
1335         case LFUN_PASTE: {
1336                 cur.message(_("Paste"));
1337                 LASSERT(cur.selBegin().idx() == cur.selEnd().idx(), break);
1338                 cap::replaceSelection(cur);
1339
1340                 // without argument?
1341                 string const arg = to_utf8(cmd.argument());
1342                 if (arg.empty()) {
1343                         bool tryGraphics = true;
1344                         if (theClipboard().isInternal())
1345                                 pasteFromStack(cur, bv->buffer().errorList("Paste"), 0);
1346                         else if (theClipboard().hasTextContents()) {
1347                                 if (pasteClipboardText(cur, bv->buffer().errorList("Paste"),
1348                                                        true, Clipboard::AnyTextType))
1349                                         tryGraphics = false;
1350                         }
1351                         if (tryGraphics && theClipboard().hasGraphicsContents())
1352                                 pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"));
1353                 } else if (isStrUnsignedInt(arg)) {
1354                         // we have a numerical argument
1355                         pasteFromStack(cur, bv->buffer().errorList("Paste"),
1356                                        convert<unsigned int>(arg));
1357                 } else if (arg == "html" || arg == "latex") {
1358                         Clipboard::TextType type = (arg == "html") ?
1359                                 Clipboard::HtmlTextType : Clipboard::LaTeXTextType;
1360                         pasteClipboardText(cur, bv->buffer().errorList("Paste"), true, type);
1361                 } else {
1362                         Clipboard::GraphicsType type = Clipboard::AnyGraphicsType;
1363                         if (arg == "pdf")
1364                                 type = Clipboard::PdfGraphicsType;
1365                         else if (arg == "png")
1366                                 type = Clipboard::PngGraphicsType;
1367                         else if (arg == "jpeg")
1368                                 type = Clipboard::JpegGraphicsType;
1369                         else if (arg == "linkback")
1370                                 type = Clipboard::LinkBackGraphicsType;
1371                         else if (arg == "emf")
1372                                 type = Clipboard::EmfGraphicsType;
1373                         else if (arg == "wmf")
1374                                 type = Clipboard::WmfGraphicsType;
1375                         else
1376                                 // we also check in getStatus()
1377                                 LYXERR0("Unrecognized graphics type: " << arg);
1378
1379                         pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"), type);
1380                 }
1381
1382                 bv->buffer().errors("Paste");
1383                 cur.clearSelection(); // bug 393
1384                 cur.finishUndo();
1385                 break;
1386         }
1387
1388         case LFUN_CUT:
1389                 cutSelection(cur, true, true);
1390                 cur.message(_("Cut"));
1391                 break;
1392
1393         case LFUN_COPY:
1394                 copySelection(cur);
1395                 cur.message(_("Copy"));
1396                 break;
1397
1398         case LFUN_SERVER_GET_XY:
1399                 cur.message(from_utf8(
1400                         convert<string>(tm->cursorX(cur.top(), cur.boundary()))
1401                         + ' ' + convert<string>(tm->cursorY(cur.top(), cur.boundary()))));
1402                 break;
1403
1404         case LFUN_SERVER_SET_XY: {
1405                 int x = 0;
1406                 int y = 0;
1407                 istringstream is(to_utf8(cmd.argument()));
1408                 is >> x >> y;
1409                 if (!is)
1410                         lyxerr << "SETXY: Could not parse coordinates in '"
1411                                << to_utf8(cmd.argument()) << endl;
1412                 else
1413                         tm->setCursorFromCoordinates(cur, x, y);
1414                 break;
1415         }
1416
1417         case LFUN_SERVER_GET_LAYOUT:
1418                 cur.message(cur.paragraph().layout().name());
1419                 break;
1420
1421         case LFUN_LAYOUT: {
1422                 bool const ignoreautonests = cmd.getArg(1) == "ignoreautonests";
1423                 docstring layout = ignoreautonests ? from_utf8(cmd.getArg(0)) : cmd.argument();
1424                 LYXERR(Debug::INFO, "LFUN_LAYOUT: (arg) " << to_utf8(layout));
1425
1426                 Paragraph const & para = cur.paragraph();
1427                 docstring const old_layout = para.layout().name();
1428                 DocumentClass const & tclass = bv->buffer().params().documentClass();
1429
1430                 if (layout.empty())
1431                         layout = tclass.defaultLayoutName();
1432
1433                 if (owner_->forcePlainLayout())
1434                         // in this case only the empty layout is allowed
1435                         layout = tclass.plainLayoutName();
1436                 else if (para.usePlainLayout()) {
1437                         // in this case, default layout maps to empty layout
1438                         if (layout == tclass.defaultLayoutName())
1439                                 layout = tclass.plainLayoutName();
1440                 } else {
1441                         // otherwise, the empty layout maps to the default
1442                         if (layout == tclass.plainLayoutName())
1443                                 layout = tclass.defaultLayoutName();
1444                 }
1445
1446                 bool hasLayout = tclass.hasLayout(layout);
1447
1448                 // If the entry is obsolete, use the new one instead.
1449                 if (hasLayout) {
1450                         docstring const & obs = tclass[layout].obsoleted_by();
1451                         if (!obs.empty())
1452                                 layout = obs;
1453                 }
1454
1455                 if (!hasLayout) {
1456                         cur.errorMessage(from_utf8(N_("Layout ")) + cmd.argument() +
1457                                 from_utf8(N_(" not known")));
1458                         break;
1459                 }
1460
1461                 bool change_layout = (old_layout != layout);
1462
1463                 if (!change_layout && cur.selection() &&
1464                         cur.selBegin().pit() != cur.selEnd().pit())
1465                 {
1466                         pit_type spit = cur.selBegin().pit();
1467                         pit_type epit = cur.selEnd().pit() + 1;
1468                         while (spit != epit) {
1469                                 if (pars_[spit].layout().name() != old_layout) {
1470                                         change_layout = true;
1471                                         break;
1472                                 }
1473                                 ++spit;
1474                         }
1475                 }
1476
1477                 if (change_layout) {
1478                         setLayout(cur, layout);
1479                         if (cur.pit() > 0 && !ignoreautonests) {
1480                                 set<docstring> const & autonests =
1481                                                 pars_[cur.pit() - 1].layout().autonests();
1482                                 set<docstring> const & autonested =
1483                                                 pars_[cur.pit()].layout().isAutonestedBy();
1484                                 if (autonests.find(layout) != autonests.end()
1485                                                 || autonested.find(old_layout) != autonested.end())
1486                                         lyx::dispatch(FuncRequest(LFUN_DEPTH_INCREMENT));
1487                         }
1488                 }
1489
1490                 Layout::LaTeXArgMap args = tclass[layout].args();
1491                 Layout::LaTeXArgMap::const_iterator lait = args.begin();
1492                 Layout::LaTeXArgMap::const_iterator const laend = args.end();
1493                 for (; lait != laend; ++lait) {
1494                         Layout::latexarg arg = (*lait).second;
1495                         if (arg.autoinsert) {
1496                                 FuncRequest cmd(LFUN_ARGUMENT_INSERT, (*lait).first);
1497                                 lyx::dispatch(cmd);
1498                         }
1499                 }
1500
1501                 break;
1502         }
1503
1504         case LFUN_ENVIRONMENT_SPLIT: {
1505                 bool const outer = cmd.argument() == "outer";
1506                 bool const previous = cmd.argument() == "previous";
1507                 bool const before = cmd.argument() == "before";
1508                 bool const normal = cmd.argument().empty();
1509                 Paragraph const & para = cur.paragraph();
1510                 docstring layout;
1511                 if (para.layout().isEnvironment())
1512                         layout = para.layout().name();
1513                 depth_type split_depth = cur.paragraph().params().depth();
1514                 depth_type nextpar_depth = 0;
1515                 if (outer || previous) {
1516                         // check if we have an environment in our scope
1517                         pit_type pit = cur.pit();
1518                         Paragraph cpar = pars_[pit];
1519                         while (true) {
1520                                 if (pit == 0)
1521                                         break;
1522                                 --pit;
1523                                 cpar = pars_[pit];
1524                                 if (layout.empty() && previous
1525                                     && cpar.layout().isEnvironment()
1526                                     && cpar.params().depth() <= split_depth)
1527                                         layout = cpar.layout().name();
1528                                 if (cpar.params().depth() < split_depth
1529                                     && cpar.layout().isEnvironment()) {
1530                                                 if (!previous)
1531                                                         layout = cpar.layout().name();
1532                                                 split_depth = cpar.params().depth();
1533                                 }
1534                                 if (cpar.params().depth() == 0)
1535                                         break;
1536                         }
1537                 }
1538                 if ((outer || normal) && cur.pit() < cur.lastpit()) {
1539                         // save nesting of following paragraph
1540                         Paragraph cpar = pars_[cur.pit() + 1];
1541                         nextpar_depth = cpar.params().depth();
1542                 }
1543                 if (before)
1544                         cur.top().setPitPos(cur.pit(), 0);
1545                 if (before || cur.pos() > 0)
1546                         lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK));
1547                 else if (previous && cur.nextInset() && cur.nextInset()->lyxCode() == SEPARATOR_CODE)
1548                         lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse ignoresep"));
1549                 if (outer) {
1550                         while (cur.paragraph().params().depth() > split_depth)
1551                                 lyx::dispatch(FuncRequest(LFUN_DEPTH_DECREMENT));
1552                 }
1553                 DocumentClass const & tc = bv->buffer().params().documentClass();
1554                 lyx::dispatch(FuncRequest(LFUN_LAYOUT, from_ascii("\"") + tc.plainLayout().name()
1555                                           + from_ascii("\" ignoreautonests")));
1556                 lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "plain"));
1557                 if (before) {
1558                         cur.backwardPos();
1559                         lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse ignoresep"));
1560                         while (cur.paragraph().params().depth() < split_depth)
1561                                 lyx::dispatch(FuncRequest(LFUN_DEPTH_INCREMENT));
1562                 }
1563                 else
1564                         lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse"));
1565                 lyx::dispatch(FuncRequest(LFUN_LAYOUT, layout));
1566                 if ((outer || normal) && nextpar_depth > 0) {
1567                         // restore nesting of following paragraph
1568                         DocIterator scur = cur;
1569                         cur.forwardPar();
1570                         while (cur.paragraph().params().depth() < nextpar_depth)
1571                                 lyx::dispatch(FuncRequest(LFUN_DEPTH_INCREMENT));
1572                         cur.setCursor(scur);
1573                 }
1574
1575                 break;
1576         }
1577
1578         case LFUN_CLIPBOARD_PASTE:
1579                 cap::replaceSelection(cur);
1580                 pasteClipboardText(cur, bv->buffer().errorList("Paste"),
1581                                cmd.argument() == "paragraph");
1582                 bv->buffer().errors("Paste");
1583                 break;
1584
1585         case LFUN_CLIPBOARD_PASTE_SIMPLE:
1586                 cap::replaceSelection(cur);
1587                 pasteSimpleText(cur, cmd.argument() == "paragraph");
1588                 break;
1589
1590         case LFUN_PRIMARY_SELECTION_PASTE:
1591                 cap::replaceSelection(cur);
1592                 pasteString(cur, theSelection().get(),
1593                             cmd.argument() == "paragraph");
1594                 break;
1595
1596         case LFUN_SELECTION_PASTE:
1597                 // Copy the selection buffer to the clipboard stack,
1598                 // because we want it to appear in the "Edit->Paste
1599                 // recent" menu.
1600                 cap::replaceSelection(cur);
1601                 cap::copySelectionToStack();
1602                 cap::pasteSelection(bv->cursor(), bv->buffer().errorList("Paste"));
1603                 bv->buffer().errors("Paste");
1604                 break;
1605
1606         case LFUN_UNICODE_INSERT: {
1607                 if (cmd.argument().empty())
1608                         break;
1609                 docstring hexstring = cmd.argument();
1610                 if (isHex(hexstring)) {
1611                         char_type c = hexToInt(hexstring);
1612                         if (c >= 32 && c < 0x10ffff) {
1613                                 lyxerr << "Inserting c: " << c << endl;
1614                                 docstring s = docstring(1, c);
1615                                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, s));
1616                         }
1617                 }
1618                 break;
1619         }
1620
1621         case LFUN_QUOTE_INSERT: {
1622                 cap::replaceSelection(cur);
1623                 cur.recordUndo();
1624
1625                 Paragraph const & par = cur.paragraph();
1626                 pos_type pos = cur.pos();
1627                 // Ignore deleted text before cursor
1628                 while (pos > 0 && par.isDeleted(pos - 1))
1629                         --pos;
1630
1631                 bool const inner = (cmd.getArg(0) == "single" || cmd.getArg(0) == "inner");
1632
1633                 // Guess quote side.
1634                 // A space triggers an opening quote. This is passed if the preceding
1635                 // char/inset is a space or at paragraph start.
1636                 char_type c = ' ';
1637                 if (pos > 0 && !par.isSpace(pos - 1)) {
1638                         if (cur.prevInset() && cur.prevInset()->lyxCode() == QUOTE_CODE) {
1639                                 // If an opening double quotation mark precedes, and this
1640                                 // is a single quote, make it opening as well
1641                                 InsetQuotes & ins =
1642                                         static_cast<InsetQuotes &>(*cur.prevInset());
1643                                 string const type = ins.getType();
1644                                 if (!suffixIs(type, "ld") || !inner)
1645                                         c = par.getChar(pos - 1);
1646                         }
1647                         else if (!cur.prevInset()
1648                             || (cur.prevInset() && cur.prevInset()->isChar()))
1649                                 // If a char precedes, pass that and let InsetQuote decide
1650                                 c = par.getChar(pos - 1);
1651                         else {
1652                                 while (pos > 0) {
1653                                         if (par.getInset(pos - 1)
1654                                             && !par.getInset(pos - 1)->isPartOfTextSequence()) {
1655                                                 // skip "invisible" insets
1656                                                 --pos;
1657                                                 continue;
1658                                         }
1659                                         c = par.getChar(pos - 1);
1660                                         break;
1661                                 }
1662                         }
1663                 }
1664                 InsetQuotesParams::QuoteLevel const quote_level = inner
1665                                 ? InsetQuotesParams::SecondaryQuotes : InsetQuotesParams::PrimaryQuotes;
1666                 cur.insert(new InsetQuotes(cur.buffer(), c, quote_level, cmd.getArg(1), cmd.getArg(2)));
1667                 cur.buffer()->updateBuffer();
1668                 cur.posForward();
1669                 break;
1670         }
1671
1672         case LFUN_DATE_INSERT: {
1673                 string const format = cmd.argument().empty()
1674                         ? lyxrc.date_insert_format : to_utf8(cmd.argument());
1675                 string const time = formatted_time(current_time(), format);
1676                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, time));
1677                 break;
1678         }
1679
1680         case LFUN_MOUSE_TRIPLE:
1681                 if (cmd.button() == mouse_button::button1) {
1682                         tm->cursorHome(cur);
1683                         cur.resetAnchor();
1684                         tm->cursorEnd(cur);
1685                         cur.setSelection();
1686                         bv->cursor() = cur;
1687                 }
1688                 break;
1689
1690         case LFUN_MOUSE_DOUBLE:
1691                 if (cmd.button() == mouse_button::button1) {
1692                         selectWord(cur, WHOLE_WORD);
1693                         bv->cursor() = cur;
1694                 }
1695                 break;
1696
1697         // Single-click on work area
1698         case LFUN_MOUSE_PRESS: {
1699                 // We are not marking a selection with the keyboard in any case.
1700                 Cursor & bvcur = cur.bv().cursor();
1701                 bvcur.setMark(false);
1702                 switch (cmd.button()) {
1703                 case mouse_button::button1:
1704                         if (!bvcur.selection())
1705                                 // Set the cursor
1706                                 bvcur.resetAnchor();
1707                         if (!bv->mouseSetCursor(cur, cmd.modifier() == ShiftModifier))
1708                                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1709                         if (bvcur.wordSelection())
1710                                 selectWord(bvcur, WHOLE_WORD);
1711                         break;
1712
1713                 case mouse_button::button2:
1714                         if (lyxrc.mouse_middlebutton_paste) {
1715                                 // Middle mouse pasting.
1716                                 bv->mouseSetCursor(cur);
1717                                 lyx::dispatch(
1718                                         FuncRequest(LFUN_COMMAND_ALTERNATIVES,
1719                                                     "selection-paste ; primary-selection-paste paragraph"));
1720                         }
1721                         cur.noScreenUpdate();
1722                         break;
1723
1724                 case mouse_button::button3: {
1725                         // Don't do anything if we right-click a
1726                         // selection, a context menu will popup.
1727                         if (bvcur.selection() && cur >= bvcur.selectionBegin()
1728                             && cur < bvcur.selectionEnd()) {
1729                                 cur.noScreenUpdate();
1730                                 return;
1731                         }
1732                         if (!bv->mouseSetCursor(cur, false))
1733                                 cur.screenUpdateFlags(Update::FitCursor);
1734                         break;
1735                 }
1736
1737                 default:
1738                         break;
1739                 } // switch (cmd.button())
1740                 break;
1741         }
1742         case LFUN_MOUSE_MOTION: {
1743                 // Mouse motion with right or middle mouse do nothing for now.
1744                 if (cmd.button() != mouse_button::button1) {
1745                         cur.noScreenUpdate();
1746                         return;
1747                 }
1748                 // ignore motions deeper nested than the real anchor
1749                 Cursor & bvcur = cur.bv().cursor();
1750                 if (!bvcur.realAnchor().hasPart(cur)) {
1751                         cur.undispatched();
1752                         break;
1753                 }
1754                 CursorSlice old = bvcur.top();
1755
1756                 int const wh = bv->workHeight();
1757                 int const y = max(0, min(wh - 1, cmd.y()));
1758
1759                 tm->setCursorFromCoordinates(cur, cmd.x(), y);
1760                 cur.setTargetX(cmd.x());
1761                 // Don't allow selecting a separator inset
1762                 if (cur.pos() && cur.paragraph().isEnvSeparator(cur.pos() - 1))
1763                         cur.posBackward();
1764                 if (cmd.y() >= wh)
1765                         lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1766                 else if (cmd.y() < 0)
1767                         lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1768                 // This is to allow jumping over large insets
1769                 if (cur.top() == old) {
1770                         if (cmd.y() >= wh)
1771                                 lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1772                         else if (cmd.y() < 0)
1773                                 lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1774                 }
1775                 // We continue with our existing selection or start a new one, so don't
1776                 // reset the anchor.
1777                 bvcur.setCursor(cur);
1778                 bvcur.selection(true);
1779                 bvcur.setCurrentFont();
1780                 if (cur.top() == old) {
1781                         // We didn't move one iota, so no need to update the screen.
1782                         cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1783                         //cur.noScreenUpdate();
1784                         return;
1785                 }
1786                 break;
1787         }
1788
1789         case LFUN_MOUSE_RELEASE:
1790                 switch (cmd.button()) {
1791                 case mouse_button::button1:
1792                         // Cursor was set at LFUN_MOUSE_PRESS or LFUN_MOUSE_MOTION time.
1793                         // If there is a new selection, update persistent selection;
1794                         // otherwise, single click does not clear persistent selection
1795                         // buffer.
1796                         if (cur.selection()) {
1797                                 // Finish selection. If double click,
1798                                 // cur is moved to the end of word by
1799                                 // selectWord but bvcur is current
1800                                 // mouse position.
1801                                 cur.bv().cursor().setSelection();
1802                                 // We might have removed an empty but drawn selection
1803                                 // (probably a margin)
1804                                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1805                         } else
1806                                 cur.noScreenUpdate();
1807                         // FIXME: We could try to handle drag and drop of selection here.
1808                         return;
1809
1810                 case mouse_button::button2:
1811                         // Middle mouse pasting is handled at mouse press time,
1812                         // see LFUN_MOUSE_PRESS.
1813                         cur.noScreenUpdate();
1814                         return;
1815
1816                 case mouse_button::button3:
1817                         // Cursor was set at LFUN_MOUSE_PRESS time.
1818                         // FIXME: If there is a selection we could try to handle a special
1819                         // drag & drop context menu.
1820                         cur.noScreenUpdate();
1821                         return;
1822
1823                 case mouse_button::none:
1824                 case mouse_button::button4:
1825                 case mouse_button::button5:
1826                         break;
1827                 } // switch (cmd.button())
1828
1829                 break;
1830
1831         case LFUN_SELF_INSERT: {
1832                 if (cmd.argument().empty())
1833                         break;
1834
1835                 // Automatically delete the currently selected
1836                 // text and replace it with what is being
1837                 // typed in now. Depends on lyxrc settings
1838                 // "auto_region_delete", which defaults to
1839                 // true (on).
1840
1841                 if (lyxrc.auto_region_delete && cur.selection())
1842                         cutSelection(cur, false, false);
1843
1844                 cur.clearSelection();
1845
1846                 docstring::const_iterator cit = cmd.argument().begin();
1847                 docstring::const_iterator const end = cmd.argument().end();
1848                 for (; cit != end; ++cit)
1849                         bv->translateAndInsert(*cit, this, cur);
1850
1851                 cur.resetAnchor();
1852                 moveCursor(cur, false);
1853                 cur.markNewWordPosition();
1854                 bv->bookmarkEditPosition();
1855                 break;
1856         }
1857
1858         case LFUN_HREF_INSERT: {
1859                 docstring content = cmd.argument();
1860                 if (content.empty() && cur.selection())
1861                         content = cur.selectionAsString(false);
1862
1863                 InsetCommandParams p(HYPERLINK_CODE);
1864                 if (!content.empty()){
1865                         // if it looks like a link, we'll put it as target,
1866                         // otherwise as name (bug #8792).
1867
1868                         // We can't do:
1869                         //   regex_match(to_utf8(content), matches, link_re)
1870                         // because smatch stores pointers to the substrings rather
1871                         // than making copies of them. And those pointers become
1872                         // invalid after regex_match returns, since it is then
1873                         // being given a temporary object. (Thanks to Georg for
1874                         // figuring that out.)
1875                         regex const link_re("^([a-z]+):.*");
1876                         smatch matches;
1877                         string const c = to_utf8(lowercase(content));
1878
1879                         if (c.substr(0,7) == "mailto:") {
1880                                 p["target"] = content;
1881                                 p["type"] = from_ascii("mailto:");
1882                         } else if (regex_match(c, matches, link_re)) {
1883                                 p["target"] = content;
1884                                 string protocol = matches.str(1);
1885                                 if (protocol == "file")
1886                                         p["type"] = from_ascii("file:");
1887                         } else
1888                                 p["name"] = content;
1889                 }
1890                 string const data = InsetCommand::params2string(p);
1891
1892                 // we need to have a target. if we already have one, then
1893                 // that gets used at the default for the name, too, which
1894                 // is probably what is wanted.
1895                 if (p["target"].empty()) {
1896                         bv->showDialog("href", data);
1897                 } else {
1898                         FuncRequest fr(LFUN_INSET_INSERT, data);
1899                         dispatch(cur, fr);
1900                 }
1901                 break;
1902         }
1903
1904         case LFUN_LABEL_INSERT: {
1905                 InsetCommandParams p(LABEL_CODE);
1906                 // Try to generate a valid label
1907                 p["name"] = (cmd.argument().empty()) ?
1908                         cur.getPossibleLabel() :
1909                         cmd.argument();
1910                 string const data = InsetCommand::params2string(p);
1911
1912                 if (cmd.argument().empty()) {
1913                         bv->showDialog("label", data);
1914                 } else {
1915                         FuncRequest fr(LFUN_INSET_INSERT, data);
1916                         dispatch(cur, fr);
1917                 }
1918                 break;
1919         }
1920
1921         case LFUN_INFO_INSERT: {
1922                 Inset * inset;
1923                 if (cmd.argument().empty() && cur.selection()) {
1924                         // if command argument is empty use current selection as parameter.
1925                         docstring ds = cur.selectionAsString(false);
1926                         cutSelection(cur, true, false);
1927                         FuncRequest cmd0(cmd, ds);
1928                         inset = createInset(cur.buffer(), cmd0);
1929                 } else {
1930                         inset = createInset(cur.buffer(), cmd);
1931                 }
1932                 if (!inset)
1933                         break;
1934                 cur.recordUndo();
1935                 insertInset(cur, inset);
1936                 cur.posForward();
1937                 break;
1938         }
1939         case LFUN_CAPTION_INSERT:
1940         case LFUN_FOOTNOTE_INSERT:
1941         case LFUN_NOTE_INSERT:
1942         case LFUN_BOX_INSERT:
1943         case LFUN_BRANCH_INSERT:
1944         case LFUN_PHANTOM_INSERT:
1945         case LFUN_ERT_INSERT:
1946         case LFUN_LISTING_INSERT:
1947         case LFUN_MARGINALNOTE_INSERT:
1948         case LFUN_ARGUMENT_INSERT:
1949         case LFUN_INDEX_INSERT:
1950         case LFUN_PREVIEW_INSERT:
1951         case LFUN_SCRIPT_INSERT:
1952         case LFUN_IPA_INSERT:
1953                 // Open the inset, and move the current selection
1954                 // inside it.
1955                 doInsertInset(cur, this, cmd, true, true);
1956                 cur.posForward();
1957                 // Some insets are numbered, others are shown in the outline pane so
1958                 // let's update the labels and the toc backend.
1959                 cur.forceBufferUpdate();
1960                 break;
1961
1962         case LFUN_FLEX_INSERT: {
1963                 // Open the inset, and move the current selection
1964                 // inside it.
1965                 bool const sel = cur.selection();
1966                 doInsertInset(cur, this, cmd, true, true);
1967                 // Insert auto-insert arguments
1968                 bool autoargs = false;
1969                 Layout::LaTeXArgMap args = cur.inset().getLayout().latexargs();
1970                 Layout::LaTeXArgMap::const_iterator lait = args.begin();
1971                 Layout::LaTeXArgMap::const_iterator const laend = args.end();
1972                 for (; lait != laend; ++lait) {
1973                         Layout::latexarg arg = (*lait).second;
1974                         if (arg.autoinsert) {
1975                                 // The cursor might have been invalidated by the replaceSelection.
1976                                 cur.buffer()->changed(true);
1977                                 FuncRequest cmd(LFUN_ARGUMENT_INSERT, (*lait).first);
1978                                 lyx::dispatch(cmd);
1979                                 autoargs = true;
1980                         }
1981                 }
1982                 if (!autoargs) {
1983                         if (sel)
1984                                 cur.leaveInset(cur.inset());
1985                         cur.posForward();
1986                 }
1987                 // Some insets are numbered, others are shown in the outline pane so
1988                 // let's update the labels and the toc backend.
1989                 cur.forceBufferUpdate();
1990                 break;
1991         }
1992
1993         case LFUN_TABULAR_INSERT:
1994                 // if there were no arguments, just open the dialog
1995                 if (doInsertInset(cur, this, cmd, false, true))
1996                         cur.posForward();
1997                 else
1998                         bv->showDialog("tabularcreate");
1999
2000                 break;
2001
2002         case LFUN_FLOAT_INSERT:
2003         case LFUN_FLOAT_WIDE_INSERT:
2004         case LFUN_WRAP_INSERT: {
2005                 // will some content be moved into the inset?
2006                 bool const content = cur.selection();
2007                 // does the content consist of multiple paragraphs?
2008                 bool const singlepar = (cur.selBegin().pit() == cur.selEnd().pit());
2009
2010                 doInsertInset(cur, this, cmd, true, true);
2011                 cur.posForward();
2012
2013                 // If some single-par content is moved into the inset,
2014                 // doInsertInset puts the cursor outside the inset.
2015                 // To insert the caption we put it back into the inset.
2016                 // FIXME cleanup doInsertInset to avoid such dances!
2017                 if (content && singlepar)
2018                         cur.backwardPos();
2019
2020                 ParagraphList & pars = cur.text()->paragraphs();
2021
2022                 DocumentClass const & tclass = bv->buffer().params().documentClass();
2023
2024                 // add a separate paragraph for the caption inset
2025                 pars.push_back(Paragraph());
2026                 pars.back().setInsetOwner(&cur.text()->inset());
2027                 pars.back().setPlainOrDefaultLayout(tclass);
2028                 int cap_pit = pars.size() - 1;
2029
2030                 // if an empty inset was created, we create an additional empty
2031                 // paragraph at the bottom so that the user can choose where to put
2032                 // the graphics (or table).
2033                 if (!content) {
2034                         pars.push_back(Paragraph());
2035                         pars.back().setInsetOwner(&cur.text()->inset());
2036                         pars.back().setPlainOrDefaultLayout(tclass);
2037                 }
2038
2039                 // reposition the cursor to the caption
2040                 cur.pit() = cap_pit;
2041                 cur.pos() = 0;
2042                 // FIXME: This Text/Cursor dispatch handling is a mess!
2043                 // We cannot use Cursor::dispatch here it needs access to up to
2044                 // date metrics.
2045                 FuncRequest cmd_caption(LFUN_CAPTION_INSERT);
2046                 doInsertInset(cur, cur.text(), cmd_caption, true, false);
2047                 cur.forceBufferUpdate();
2048                 cur.screenUpdateFlags(Update::Force);
2049                 // FIXME: When leaving the Float (or Wrap) inset we should
2050                 // delete any empty paragraph left above or below the
2051                 // caption.
2052                 break;
2053         }
2054
2055         case LFUN_NOMENCL_INSERT: {
2056                 InsetCommandParams p(NOMENCL_CODE);
2057                 if (cmd.argument().empty())
2058                         p["symbol"] = bv->cursor().innerText()->getStringToIndex(bv->cursor());
2059                 else
2060                         p["symbol"] = cmd.argument();
2061                 string const data = InsetCommand::params2string(p);
2062                 bv->showDialog("nomenclature", data);
2063                 break;
2064         }
2065
2066         case LFUN_INDEX_PRINT: {
2067                 InsetCommandParams p(INDEX_PRINT_CODE);
2068                 if (cmd.argument().empty())
2069                         p["type"] = from_ascii("idx");
2070                 else
2071                         p["type"] = cmd.argument();
2072                 string const data = InsetCommand::params2string(p);
2073                 FuncRequest fr(LFUN_INSET_INSERT, data);
2074                 dispatch(cur, fr);
2075                 break;
2076         }
2077
2078         case LFUN_NOMENCL_PRINT:
2079         case LFUN_NEWPAGE_INSERT:
2080                 // do nothing fancy
2081                 doInsertInset(cur, this, cmd, false, false);
2082                 cur.posForward();
2083                 break;
2084
2085         case LFUN_SEPARATOR_INSERT: {
2086                 doInsertInset(cur, this, cmd, false, false);
2087                 cur.posForward();
2088                 // remove a following space
2089                 Paragraph & par = cur.paragraph();
2090                 if (cur.pos() != cur.lastpos() && par.isLineSeparator(cur.pos()))
2091                     par.eraseChar(cur.pos(), cur.buffer()->params().track_changes);
2092                 break;
2093         }
2094
2095         case LFUN_DEPTH_DECREMENT:
2096                 changeDepth(cur, DEC_DEPTH);
2097                 break;
2098
2099         case LFUN_DEPTH_INCREMENT:
2100                 changeDepth(cur, INC_DEPTH);
2101                 break;
2102
2103         case LFUN_REGEXP_MODE:
2104                 regexpDispatch(cur, cmd);
2105                 break;
2106
2107         case LFUN_MATH_MODE: {
2108                 if (cmd.argument() == "on" || cmd.argument() == "") {
2109                         // don't pass "on" as argument
2110                         // (it would appear literally in the first cell)
2111                         docstring sel = cur.selectionAsString(false);
2112                         InsetMathMacroTemplate * macro = new InsetMathMacroTemplate(cur.buffer());
2113                         // create a macro template if we see "\\newcommand" somewhere, and
2114                         // an ordinary formula otherwise
2115                         if (!sel.empty()
2116                                 && (sel.find(from_ascii("\\newcommand")) != string::npos
2117                                         || sel.find(from_ascii("\\newlyxcommand")) != string::npos
2118                                         || sel.find(from_ascii("\\def")) != string::npos)
2119                                 && macro->fromString(sel)) {
2120                                 cur.recordUndo();
2121                                 replaceSelection(cur);
2122                                 cur.insert(macro);
2123                         } else {
2124                                 // no meaningful macro template was found
2125                                 delete macro;
2126                                 mathDispatch(cur,FuncRequest(LFUN_MATH_MODE));
2127                         }
2128                 } else
2129                         // The argument is meaningful
2130                         // We replace cmd with LFUN_MATH_INSERT because LFUN_MATH_MODE
2131                         // has a different meaning in math mode
2132                         mathDispatch(cur, FuncRequest(LFUN_MATH_INSERT,cmd.argument()));
2133                 break;
2134         }
2135
2136         case LFUN_MATH_MACRO:
2137                 if (cmd.argument().empty())
2138                         cur.errorMessage(from_utf8(N_("Missing argument")));
2139                 else {
2140                         cur.recordUndo();
2141                         string s = to_utf8(cmd.argument());
2142                         string const s1 = token(s, ' ', 1);
2143                         int const nargs = s1.empty() ? 0 : convert<int>(s1);
2144                         string const s2 = token(s, ' ', 2);
2145                         MacroType type = MacroTypeNewcommand;
2146                         if (s2 == "def")
2147                                 type = MacroTypeDef;
2148                         InsetMathMacroTemplate * inset = new InsetMathMacroTemplate(cur.buffer(),
2149                                 from_utf8(token(s, ' ', 0)), nargs, false, type);
2150                         inset->setBuffer(bv->buffer());
2151                         insertInset(cur, inset);
2152
2153                         // enter macro inset and select the name
2154                         cur.push(*inset);
2155                         cur.top().pos() = cur.top().lastpos();
2156                         cur.resetAnchor();
2157                         cur.selection(true);
2158                         cur.top().pos() = 0;
2159                 }
2160                 break;
2161
2162         case LFUN_MATH_DISPLAY:
2163         case LFUN_MATH_SUBSCRIPT:
2164         case LFUN_MATH_SUPERSCRIPT:
2165         case LFUN_MATH_INSERT:
2166         case LFUN_MATH_AMS_MATRIX:
2167         case LFUN_MATH_MATRIX:
2168         case LFUN_MATH_DELIM:
2169         case LFUN_MATH_BIGDELIM:
2170                 mathDispatch(cur, cmd);
2171                 break;
2172
2173         case LFUN_FONT_EMPH: {
2174                 Font font(ignore_font, ignore_language);
2175                 font.fontInfo().setEmph(FONT_TOGGLE);
2176                 toggleAndShow(cur, this, font);
2177                 break;
2178         }
2179
2180         case LFUN_FONT_ITAL: {
2181                 Font font(ignore_font, ignore_language);
2182                 font.fontInfo().setShape(ITALIC_SHAPE);
2183                 toggleAndShow(cur, this, font);
2184                 break;
2185         }
2186
2187         case LFUN_FONT_BOLD:
2188         case LFUN_FONT_BOLDSYMBOL: {
2189                 Font font(ignore_font, ignore_language);
2190                 font.fontInfo().setSeries(BOLD_SERIES);
2191                 toggleAndShow(cur, this, font);
2192                 break;
2193         }
2194
2195         case LFUN_FONT_NOUN: {
2196                 Font font(ignore_font, ignore_language);
2197                 font.fontInfo().setNoun(FONT_TOGGLE);
2198                 toggleAndShow(cur, this, font);
2199                 break;
2200         }
2201
2202         case LFUN_FONT_TYPEWRITER: {
2203                 Font font(ignore_font, ignore_language);
2204                 font.fontInfo().setFamily(TYPEWRITER_FAMILY); // no good
2205                 toggleAndShow(cur, this, font);
2206                 break;
2207         }
2208
2209         case LFUN_FONT_SANS: {
2210                 Font font(ignore_font, ignore_language);
2211                 font.fontInfo().setFamily(SANS_FAMILY);
2212                 toggleAndShow(cur, this, font);
2213                 break;
2214         }
2215
2216         case LFUN_FONT_ROMAN: {
2217                 Font font(ignore_font, ignore_language);
2218                 font.fontInfo().setFamily(ROMAN_FAMILY);
2219                 toggleAndShow(cur, this, font);
2220                 break;
2221         }
2222
2223         case LFUN_FONT_DEFAULT: {
2224                 Font font(inherit_font, ignore_language);
2225                 toggleAndShow(cur, this, font);
2226                 break;
2227         }
2228
2229         case LFUN_FONT_STRIKEOUT: {
2230                 Font font(ignore_font, ignore_language);
2231                 font.fontInfo().setStrikeout(FONT_TOGGLE);
2232                 toggleAndShow(cur, this, font);
2233                 break;
2234         }
2235
2236         case LFUN_FONT_CROSSOUT: {
2237                 Font font(ignore_font, ignore_language);
2238                 font.fontInfo().setXout(FONT_TOGGLE);
2239                 toggleAndShow(cur, this, font);
2240                 break;
2241         }
2242
2243         case LFUN_FONT_UNDERUNDERLINE: {
2244                 Font font(ignore_font, ignore_language);
2245                 font.fontInfo().setUuline(FONT_TOGGLE);
2246                 toggleAndShow(cur, this, font);
2247                 break;
2248         }
2249
2250         case LFUN_FONT_UNDERWAVE: {
2251                 Font font(ignore_font, ignore_language);
2252                 font.fontInfo().setUwave(FONT_TOGGLE);
2253                 toggleAndShow(cur, this, font);
2254                 break;
2255         }
2256
2257         case LFUN_FONT_UNDERLINE: {
2258                 Font font(ignore_font, ignore_language);
2259                 font.fontInfo().setUnderbar(FONT_TOGGLE);
2260                 toggleAndShow(cur, this, font);
2261                 break;
2262         }
2263
2264         case LFUN_FONT_SIZE: {
2265                 Font font(ignore_font, ignore_language);
2266                 setLyXSize(to_utf8(cmd.argument()), font.fontInfo());
2267                 toggleAndShow(cur, this, font);
2268                 break;
2269         }
2270
2271         case LFUN_LANGUAGE: {
2272                 string const lang_arg = cmd.getArg(0);
2273                 bool const reset = (lang_arg.empty() || lang_arg == "reset");
2274                 Language const * lang =
2275                         reset ? reset_language
2276                               : languages.getLanguage(lang_arg);
2277                 // we allow reset_language, which is 0, but only if it
2278                 // was requested via empty or "reset" arg.
2279                 if (!lang && !reset)
2280                         break;
2281                 bool const toggle = (cmd.getArg(1) != "set");
2282                 selectWordWhenUnderCursor(cur, WHOLE_WORD_STRICT);
2283                 Font font(ignore_font, lang);
2284                 toggleAndShow(cur, this, font, toggle);
2285                 break;
2286         }
2287
2288         case LFUN_TEXTSTYLE_APPLY:
2289                 toggleAndShow(cur, this, freefont, toggleall);
2290                 cur.message(_("Character set"));
2291                 break;
2292
2293         // Set the freefont using the contents of \param data dispatched from
2294         // the frontends and apply it at the current cursor location.
2295         case LFUN_TEXTSTYLE_UPDATE: {
2296                 Font font;
2297                 bool toggle;
2298                 if (font.fromString(to_utf8(cmd.argument()), toggle)) {
2299                         freefont = font;
2300                         toggleall = toggle;
2301                         toggleAndShow(cur, this, freefont, toggleall);
2302                         cur.message(_("Character set"));
2303                 } else {
2304                         lyxerr << "Argument not ok";
2305                 }
2306                 break;
2307         }
2308
2309         case LFUN_FINISHED_LEFT:
2310                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_LEFT:\n" << cur);
2311                 // We're leaving an inset, going left. If the inset is LTR, we're
2312                 // leaving from the front, so we should not move (remain at --- but
2313                 // not in --- the inset). If the inset is RTL, move left, without
2314                 // entering the inset itself; i.e., move to after the inset.
2315                 if (cur.paragraph().getFontSettings(
2316                                 cur.bv().buffer().params(), cur.pos()).isRightToLeft())
2317                         cursorVisLeft(cur, true);
2318                 break;
2319
2320         case LFUN_FINISHED_RIGHT:
2321                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_RIGHT:\n" << cur);
2322                 // We're leaving an inset, going right. If the inset is RTL, we're
2323                 // leaving from the front, so we should not move (remain at --- but
2324                 // not in --- the inset). If the inset is LTR, move right, without
2325                 // entering the inset itself; i.e., move to after the inset.
2326                 if (!cur.paragraph().getFontSettings(
2327                                 cur.bv().buffer().params(), cur.pos()).isRightToLeft())
2328                         cursorVisRight(cur, true);
2329                 break;
2330
2331         case LFUN_FINISHED_BACKWARD:
2332                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_BACKWARD:\n" << cur);
2333                 cur.setCurrentFont();
2334                 break;
2335
2336         case LFUN_FINISHED_FORWARD:
2337                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_FORWARD:\n" << cur);
2338                 ++cur.pos();
2339                 cur.setCurrentFont();
2340                 break;
2341
2342         case LFUN_LAYOUT_PARAGRAPH: {
2343                 string data;
2344                 params2string(cur.paragraph(), data);
2345                 data = "show\n" + data;
2346                 bv->showDialog("paragraph", data);
2347                 break;
2348         }
2349
2350         case LFUN_PARAGRAPH_UPDATE: {
2351                 string data;
2352                 params2string(cur.paragraph(), data);
2353
2354                 // Will the paragraph accept changes from the dialog?
2355                 bool const accept =
2356                         cur.inset().allowParagraphCustomization(cur.idx());
2357
2358                 data = "update " + convert<string>(accept) + '\n' + data;
2359                 bv->updateDialog("paragraph", data);
2360                 break;
2361         }
2362
2363         case LFUN_ACCENT_UMLAUT:
2364         case LFUN_ACCENT_CIRCUMFLEX:
2365         case LFUN_ACCENT_GRAVE:
2366         case LFUN_ACCENT_ACUTE:
2367         case LFUN_ACCENT_TILDE:
2368         case LFUN_ACCENT_PERISPOMENI:
2369         case LFUN_ACCENT_CEDILLA:
2370         case LFUN_ACCENT_MACRON:
2371         case LFUN_ACCENT_DOT:
2372         case LFUN_ACCENT_UNDERDOT:
2373         case LFUN_ACCENT_UNDERBAR:
2374         case LFUN_ACCENT_CARON:
2375         case LFUN_ACCENT_BREVE:
2376         case LFUN_ACCENT_TIE:
2377         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
2378         case LFUN_ACCENT_CIRCLE:
2379         case LFUN_ACCENT_OGONEK:
2380                 theApp()->handleKeyFunc(cmd.action());
2381                 if (!cmd.argument().empty())
2382                         // FIXME: Are all these characters encoded in one byte in utf8?
2383                         bv->translateAndInsert(cmd.argument()[0], this, cur);
2384                 cur.screenUpdateFlags(Update::FitCursor);
2385                 break;
2386
2387         case LFUN_FLOAT_LIST_INSERT: {
2388                 DocumentClass const & tclass = bv->buffer().params().documentClass();
2389                 if (tclass.floats().typeExist(to_utf8(cmd.argument()))) {
2390                         cur.recordUndo();
2391                         if (cur.selection())
2392                                 cutSelection(cur, true, false);
2393                         breakParagraph(cur);
2394
2395                         if (cur.lastpos() != 0) {
2396                                 cursorBackward(cur);
2397                                 breakParagraph(cur);
2398                         }
2399
2400                         docstring const laystr = cur.inset().usePlainLayout() ?
2401                                 tclass.plainLayoutName() :
2402                                 tclass.defaultLayoutName();
2403                         setLayout(cur, laystr);
2404                         ParagraphParameters p;
2405                         // FIXME If this call were replaced with one to clearParagraphParams(),
2406                         // then we could get rid of this method altogether.
2407                         setParagraphs(cur, p);
2408                         // FIXME This should be simplified when InsetFloatList takes a
2409                         // Buffer in its constructor.
2410                         InsetFloatList * ifl = new InsetFloatList(cur.buffer(), to_utf8(cmd.argument()));
2411                         ifl->setBuffer(bv->buffer());
2412                         insertInset(cur, ifl);
2413                         cur.posForward();
2414                 } else {
2415                         lyxerr << "Non-existent float type: "
2416                                << to_utf8(cmd.argument()) << endl;
2417                 }
2418                 break;
2419         }
2420
2421         case LFUN_CHANGE_ACCEPT: {
2422                 acceptOrRejectChanges(cur, ACCEPT);
2423                 break;
2424         }
2425
2426         case LFUN_CHANGE_REJECT: {
2427                 acceptOrRejectChanges(cur, REJECT);
2428                 break;
2429         }
2430
2431         case LFUN_THESAURUS_ENTRY: {
2432                 Language const * language = cur.getFont().language();
2433                 docstring arg = cmd.argument();
2434                 if (arg.empty()) {
2435                         arg = cur.selectionAsString(false);
2436                         // FIXME
2437                         if (arg.size() > 100 || arg.empty()) {
2438                                 // Get word or selection
2439                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2440                                 arg = cur.selectionAsString(false);
2441                                 arg += " lang=" + from_ascii(language->lang());
2442                         }
2443                 } else {
2444                         string lang = cmd.getArg(1);
2445                         // This duplicates the code in GuiThesaurus::initialiseParams
2446                         if (prefixIs(lang, "lang=")) {
2447                                 language = languages.getLanguage(lang.substr(5));
2448                                 if (!language)
2449                                         language = cur.getFont().language();
2450                         }
2451                 }
2452                 string lang = language->code();
2453                 if (lyxrc.thesaurusdir_path.empty() && !thesaurus.thesaurusInstalled(from_ascii(lang))) {
2454                         LYXERR(Debug::ACTION, "Command " << cmd << ". Thesaurus not found for language " << lang);
2455                         frontend::Alert::warning(_("Path to thesaurus directory not set!"),
2456                                         _("The path to the thesaurus directory has not been specified.\n"
2457                                           "The thesaurus is not functional.\n"
2458                                           "Please refer to sec. 6.15.1 of the User's Guide for setup\n"
2459                                           "instructions."));
2460                 }
2461                 bv->showDialog("thesaurus", to_utf8(arg));
2462                 break;
2463         }
2464
2465         case LFUN_SPELLING_ADD: {
2466                 Language const * language = getLanguage(cur, cmd.getArg(1));
2467                 docstring word = from_utf8(cmd.getArg(0));
2468                 if (word.empty()) {
2469                         word = cur.selectionAsString(false);
2470                         // FIXME
2471                         if (word.size() > 100 || word.empty()) {
2472                                 // Get word or selection
2473                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2474                                 word = cur.selectionAsString(false);
2475                         }
2476                 }
2477                 WordLangTuple wl(word, language);
2478                 theSpellChecker()->insert(wl);
2479                 break;
2480         }
2481
2482         case LFUN_SPELLING_IGNORE: {
2483                 Language const * language = getLanguage(cur, cmd.getArg(1));
2484                 docstring word = from_utf8(cmd.getArg(0));
2485                 if (word.empty()) {
2486                         word = cur.selectionAsString(false);
2487                         // FIXME
2488                         if (word.size() > 100 || word.empty()) {
2489                                 // Get word or selection
2490                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2491                                 word = cur.selectionAsString(false);
2492                         }
2493                 }
2494                 WordLangTuple wl(word, language);
2495                 theSpellChecker()->accept(wl);
2496                 break;
2497         }
2498
2499         case LFUN_SPELLING_REMOVE: {
2500                 Language const * language = getLanguage(cur, cmd.getArg(1));
2501                 docstring word = from_utf8(cmd.getArg(0));
2502                 if (word.empty()) {
2503                         word = cur.selectionAsString(false);
2504                         // FIXME
2505                         if (word.size() > 100 || word.empty()) {
2506                                 // Get word or selection
2507                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2508                                 word = cur.selectionAsString(false);
2509                         }
2510                 }
2511                 WordLangTuple wl(word, language);
2512                 theSpellChecker()->remove(wl);
2513                 break;
2514         }
2515
2516         case LFUN_PARAGRAPH_PARAMS_APPLY: {
2517                 // Given data, an encoding of the ParagraphParameters
2518                 // generated in the Paragraph dialog, this function sets
2519                 // the current paragraph, or currently selected paragraphs,
2520                 // appropriately.
2521                 // NOTE: This function overrides all existing settings.
2522                 setParagraphs(cur, cmd.argument());
2523                 cur.message(_("Paragraph layout set"));
2524                 break;
2525         }
2526
2527         case LFUN_PARAGRAPH_PARAMS: {
2528                 // Given data, an encoding of the ParagraphParameters as we'd
2529                 // find them in a LyX file, this function modifies the current paragraph,
2530                 // or currently selected paragraphs.
2531                 // NOTE: This function only modifies, and does not override, existing
2532                 // settings.
2533                 setParagraphs(cur, cmd.argument(), true);
2534                 cur.message(_("Paragraph layout set"));
2535                 break;
2536         }
2537
2538         case LFUN_ESCAPE:
2539                 if (cur.selection()) {
2540                         cur.selection(false);
2541                 } else {
2542                         cur.undispatched();
2543                         // This used to be LFUN_FINISHED_RIGHT, I think FORWARD is more
2544                         // correct, but I'm not 100% sure -- dov, 071019
2545                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
2546                 }
2547                 break;
2548
2549         case LFUN_OUTLINE_UP:
2550                 outline(OutlineUp, cur);
2551                 setCursor(cur, cur.pit(), 0);
2552                 cur.forceBufferUpdate();
2553                 needsUpdate = true;
2554                 break;
2555
2556         case LFUN_OUTLINE_DOWN:
2557                 outline(OutlineDown, cur);
2558                 setCursor(cur, cur.pit(), 0);
2559                 cur.forceBufferUpdate();
2560                 needsUpdate = true;
2561                 break;
2562
2563         case LFUN_OUTLINE_IN:
2564                 outline(OutlineIn, cur);
2565                 cur.forceBufferUpdate();
2566                 needsUpdate = true;
2567                 break;
2568
2569         case LFUN_OUTLINE_OUT:
2570                 outline(OutlineOut, cur);
2571                 cur.forceBufferUpdate();
2572                 needsUpdate = true;
2573                 break;
2574
2575         case LFUN_SERVER_GET_STATISTICS:
2576                 {
2577                         DocIterator from, to;
2578                         if (cur.selection()) {
2579                                 from = cur.selectionBegin();
2580                                 to = cur.selectionEnd();
2581                         } else {
2582                                 from = doc_iterator_begin(cur.buffer());
2583                                 to = doc_iterator_end(cur.buffer());
2584                         }
2585
2586                         cur.buffer()->updateStatistics(from, to);
2587                         string const arg0 = cmd.getArg(0);
2588                         if (arg0 == "words") {
2589                                 cur.message(convert<docstring>(cur.buffer()->wordCount()));
2590                         } else if (arg0 == "chars") {
2591                                 cur.message(convert<docstring>(cur.buffer()->charCount(false)));
2592                         } else if (arg0 == "chars-space") {
2593                                 cur.message(convert<docstring>(cur.buffer()->charCount(true)));
2594                         } else {
2595                                 cur.message(convert<docstring>(cur.buffer()->wordCount()) + " "
2596                                 + convert<docstring>(cur.buffer()->charCount(false)) + " "
2597                                 + convert<docstring>(cur.buffer()->charCount(true)));
2598                         }
2599                 }
2600                 break;
2601
2602         default:
2603                 LYXERR(Debug::ACTION, "Command " << cmd << " not DISPATCHED by Text");
2604                 cur.undispatched();
2605                 break;
2606         }
2607
2608         needsUpdate |= (cur.pos() != cur.lastpos()) && cur.selection();
2609
2610         if (lyxrc.spellcheck_continuously && !needsUpdate) {
2611                 // Check for misspelled text
2612                 // The redraw is useful because of the painting of
2613                 // misspelled markers depends on the cursor position.
2614                 // Trigger a redraw for cursor moves inside misspelled text.
2615                 if (!cur.inTexted()) {
2616                         // move from regular text to math
2617                         needsUpdate = last_misspelled;
2618                 } else if (oldTopSlice != cur.top() || oldBoundary != cur.boundary()) {
2619                         // move inside regular text
2620                         needsUpdate = last_misspelled
2621                                 || cur.paragraph().isMisspelled(cur.pos(), true);
2622                 }
2623         }
2624
2625         // FIXME: The cursor flag is reset two lines below
2626         // so we need to check here if some of the LFUN did touch that.
2627         // for now only Text::erase() and Text::backspace() do that.
2628         // The plan is to verify all the LFUNs and then to remove this
2629         // singleParUpdate boolean altogether.
2630         if (cur.result().screenUpdate() & Update::Force) {
2631                 singleParUpdate = false;
2632                 needsUpdate = true;
2633         }
2634
2635         // FIXME: the following code should go in favor of fine grained
2636         // update flag treatment.
2637         if (singleParUpdate) {
2638                 // Inserting characters does not change par height in general. So, try
2639                 // to update _only_ this paragraph. BufferView will detect if a full
2640                 // metrics update is needed anyway.
2641                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
2642                 return;
2643         }
2644         if (!needsUpdate
2645             && &oldTopSlice.inset() == &cur.inset()
2646             && oldTopSlice.idx() == cur.idx()
2647             && !oldSelection // oldSelection is a backup of cur.selection() at the beginning of the function.
2648             && !cur.selection())
2649                 // FIXME: it would be better if we could just do this
2650                 //
2651                 //if (cur.result().update() != Update::FitCursor)
2652                 //      cur.noScreenUpdate();
2653                 //
2654                 // But some LFUNs do not set Update::FitCursor when needed, so we
2655                 // do it for all. This is not very harmfull as FitCursor will provoke
2656                 // a full redraw only if needed but still, a proper review of all LFUN
2657                 // should be done and this needsUpdate boolean can then be removed.
2658                 cur.screenUpdateFlags(Update::FitCursor);
2659         else
2660                 cur.screenUpdateFlags(Update::Force | Update::FitCursor);
2661 }
2662
2663
2664 bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
2665                         FuncStatus & flag) const
2666 {
2667         LBUFERR(this == cur.text());
2668
2669         FontInfo const & fontinfo = cur.real_current_font.fontInfo();
2670         bool enable = true;
2671         bool allow_in_passthru = false;
2672         InsetCode code = NO_CODE;
2673
2674         switch (cmd.action()) {
2675
2676         case LFUN_DEPTH_DECREMENT:
2677                 enable = changeDepthAllowed(cur, DEC_DEPTH);
2678                 break;
2679
2680         case LFUN_DEPTH_INCREMENT:
2681                 enable = changeDepthAllowed(cur, INC_DEPTH);
2682                 break;
2683
2684         case LFUN_APPENDIX:
2685                 // FIXME We really should not allow this to be put, e.g.,
2686                 // in a footnote, or in ERT. But it would make sense in a
2687                 // branch, so I'm not sure what to do.
2688                 flag.setOnOff(cur.paragraph().params().startOfAppendix());
2689                 break;
2690
2691         case LFUN_DIALOG_SHOW_NEW_INSET:
2692                 if (cmd.argument() == "bibitem")
2693                         code = BIBITEM_CODE;
2694                 else if (cmd.argument() == "bibtex") {
2695                         code = BIBTEX_CODE;
2696                         // not allowed in description items
2697                         enable = !inDescriptionItem(cur);
2698                 }
2699                 else if (cmd.argument() == "box")
2700                         code = BOX_CODE;
2701                 else if (cmd.argument() == "branch")
2702                         code = BRANCH_CODE;
2703                 else if (cmd.argument() == "citation")
2704                         code = CITE_CODE;
2705                 else if (cmd.argument() == "ert")
2706                         code = ERT_CODE;
2707                 else if (cmd.argument() == "external")
2708                         code = EXTERNAL_CODE;
2709                 else if (cmd.argument() == "float")
2710                         code = FLOAT_CODE;
2711                 else if (cmd.argument() == "graphics")
2712                         code = GRAPHICS_CODE;
2713                 else if (cmd.argument() == "href")
2714                         code = HYPERLINK_CODE;
2715                 else if (cmd.argument() == "include")
2716                         code = INCLUDE_CODE;
2717                 else if (cmd.argument() == "index")
2718                         code = INDEX_CODE;
2719                 else if (cmd.argument() == "index_print")
2720                         code = INDEX_PRINT_CODE;
2721                 else if (cmd.argument() == "listings")
2722                         code = LISTINGS_CODE;
2723                 else if (cmd.argument() == "mathspace")
2724                         code = MATH_HULL_CODE;
2725                 else if (cmd.argument() == "nomenclature")
2726                         code = NOMENCL_CODE;
2727                 else if (cmd.argument() == "nomencl_print")
2728                         code = NOMENCL_PRINT_CODE;
2729                 else if (cmd.argument() == "label")
2730                         code = LABEL_CODE;
2731                 else if (cmd.argument() == "line")
2732                         code = LINE_CODE;
2733                 else if (cmd.argument() == "note")
2734                         code = NOTE_CODE;
2735                 else if (cmd.argument() == "phantom")
2736                         code = PHANTOM_CODE;
2737                 else if (cmd.argument() == "ref")
2738                         code = REF_CODE;
2739                 else if (cmd.argument() == "space")
2740                         code = SPACE_CODE;
2741                 else if (cmd.argument() == "toc")
2742                         code = TOC_CODE;
2743                 else if (cmd.argument() == "vspace")
2744                         code = VSPACE_CODE;
2745                 else if (cmd.argument() == "wrap")
2746                         code = WRAP_CODE;
2747                 break;
2748
2749         case LFUN_ERT_INSERT:
2750                 code = ERT_CODE;
2751                 break;
2752         case LFUN_LISTING_INSERT:
2753                 code = LISTINGS_CODE;
2754                 // not allowed in description items
2755                 enable = !inDescriptionItem(cur);
2756                 break;
2757         case LFUN_FOOTNOTE_INSERT:
2758                 code = FOOT_CODE;
2759                 break;
2760         case LFUN_TABULAR_INSERT:
2761                 code = TABULAR_CODE;
2762                 break;
2763         case LFUN_MARGINALNOTE_INSERT:
2764                 code = MARGIN_CODE;
2765                 break;
2766         case LFUN_FLOAT_INSERT:
2767         case LFUN_FLOAT_WIDE_INSERT:
2768                 // FIXME: If there is a selection, we should check whether there
2769                 // are floats in the selection, but this has performance issues, see
2770                 // LFUN_CHANGE_ACCEPT/REJECT.
2771                 code = FLOAT_CODE;
2772                 if (inDescriptionItem(cur))
2773                         // not allowed in description items
2774                         enable = false;
2775                 else {
2776                         InsetCode const inset_code = cur.inset().lyxCode();
2777
2778                         // algorithm floats cannot be put in another float
2779                         if (to_utf8(cmd.argument()) == "algorithm") {
2780                                 enable = inset_code != WRAP_CODE && inset_code != FLOAT_CODE;
2781                                 break;
2782                         }
2783
2784                         // for figures and tables: only allow in another
2785                         // float or wrap if it is of the same type and
2786                         // not a subfloat already
2787                         if(cur.inset().lyxCode() == code) {
2788                                 InsetFloat const & ins =
2789                                         static_cast<InsetFloat const &>(cur.inset());
2790                                 enable = ins.params().type == to_utf8(cmd.argument())
2791                                         && !ins.params().subfloat;
2792                         } else if(cur.inset().lyxCode() == WRAP_CODE) {
2793                                 InsetWrap const & ins =
2794                                         static_cast<InsetWrap const &>(cur.inset());
2795                                 enable = ins.params().type == to_utf8(cmd.argument());
2796                         }
2797                 }
2798                 break;
2799         case LFUN_WRAP_INSERT:
2800                 code = WRAP_CODE;
2801                 // not allowed in description items
2802                 enable = !inDescriptionItem(cur);
2803                 break;
2804         case LFUN_FLOAT_LIST_INSERT: {
2805                 code = FLOAT_LIST_CODE;
2806                 // not allowed in description items
2807                 enable = !inDescriptionItem(cur);
2808                 if (enable) {
2809                         FloatList const & floats = cur.buffer()->params().documentClass().floats();
2810                         FloatList::const_iterator cit = floats[to_ascii(cmd.argument())];
2811                         // make sure we know about such floats
2812                         if (cit == floats.end() ||
2813                                         // and that we know how to generate a list of them
2814                             (!cit->second.usesFloatPkg() && cit->second.listCommand().empty())) {
2815                                 flag.setUnknown(true);
2816                                 // probably not necessary, but...
2817                                 enable = false;
2818                         }
2819                 }
2820                 break;
2821         }
2822         case LFUN_CAPTION_INSERT: {
2823                 code = CAPTION_CODE;
2824                 string arg = cmd.getArg(0);
2825                 bool varia = arg != "Unnumbered"
2826                         && cur.inset().allowsCaptionVariation(arg);
2827                 // not allowed in description items,
2828                 // and in specific insets
2829                 enable = !inDescriptionItem(cur)
2830                         && (varia || arg.empty() || arg == "Standard");
2831                 break;
2832         }
2833         case LFUN_NOTE_INSERT:
2834                 code = NOTE_CODE;
2835                 // in commands (sections etc.) and description items,
2836                 // only Notes are allowed
2837                 enable = (cmd.argument().empty() || cmd.getArg(0) == "Note" ||
2838                           (!cur.paragraph().layout().isCommand()
2839                            && !inDescriptionItem(cur)));
2840                 break;
2841         case LFUN_FLEX_INSERT: {
2842                 code = FLEX_CODE;
2843                 string s = cmd.getArg(0);
2844                 InsetLayout il =
2845                         cur.buffer()->params().documentClass().insetLayout(from_utf8(s));
2846                 if (il.lyxtype() != InsetLayout::CHARSTYLE &&
2847                     il.lyxtype() != InsetLayout::CUSTOM &&
2848                     il.lyxtype() != InsetLayout::ELEMENT &&
2849                     il.lyxtype ()!= InsetLayout::STANDARD)
2850                         enable = false;
2851                 break;
2852                 }
2853         case LFUN_BOX_INSERT:
2854                 code = BOX_CODE;
2855                 break;
2856         case LFUN_BRANCH_INSERT:
2857                 code = BRANCH_CODE;
2858                 if (cur.buffer()->masterBuffer()->params().branchlist().empty()
2859                     && cur.buffer()->params().branchlist().empty())
2860                         enable = false;
2861                 break;
2862         case LFUN_IPA_INSERT:
2863                 code = IPA_CODE;
2864                 break;
2865         case LFUN_PHANTOM_INSERT:
2866                 code = PHANTOM_CODE;
2867                 break;
2868         case LFUN_LABEL_INSERT:
2869                 code = LABEL_CODE;
2870                 break;
2871         case LFUN_INFO_INSERT:
2872                 code = INFO_CODE;
2873                 break;
2874         case LFUN_ARGUMENT_INSERT: {
2875                 code = ARG_CODE;
2876                 allow_in_passthru = true;
2877                 string const arg = cmd.getArg(0);
2878                 if (arg.empty()) {
2879                         enable = false;
2880                         break;
2881                 }
2882                 Layout const & lay = cur.paragraph().layout();
2883                 Layout::LaTeXArgMap args = lay.args();
2884                 Layout::LaTeXArgMap::const_iterator const lait =
2885                                 args.find(arg);
2886                 if (lait != args.end()) {
2887                         enable = true;
2888                         pit_type pit = cur.pit();
2889                         pit_type lastpit = cur.pit();
2890                         if (lay.isEnvironment() && !prefixIs(arg, "item:")) {
2891                                 // In a sequence of "merged" environment layouts, we only allow
2892                                 // non-item arguments once.
2893                                 lastpit = cur.lastpit();
2894                                 // get the first paragraph in sequence with this layout
2895                                 depth_type const current_depth = cur.paragraph().params().depth();
2896                                 while (true) {
2897                                         if (pit == 0)
2898                                                 break;
2899                                         Paragraph cpar = pars_[pit - 1];
2900                                         if (cpar.layout() == lay && cpar.params().depth() == current_depth)
2901                                                 --pit;
2902                                         else
2903                                                 break;
2904                                 }
2905                         }
2906                         for (; pit <= lastpit; ++pit) {
2907                                 if (pars_[pit].layout() != lay)
2908                                         break;
2909                                 for (auto const & table : pars_[pit].insetList())
2910                                         if (InsetArgument const * ins = table.inset->asInsetArgument())
2911                                                 if (ins->name() == arg) {
2912                                                         // we have this already
2913                                                         enable = false;
2914                                                         break;
2915                                                 }
2916                         }
2917                 } else
2918                         enable = false;
2919                 break;
2920         }
2921         case LFUN_INDEX_INSERT:
2922                 code = INDEX_CODE;
2923                 break;
2924         case LFUN_INDEX_PRINT:
2925                 code = INDEX_PRINT_CODE;
2926                 // not allowed in description items
2927                 enable = !inDescriptionItem(cur);
2928                 break;
2929         case LFUN_NOMENCL_INSERT:
2930                 if (cur.selIsMultiCell() || cur.selIsMultiLine()) {
2931                         enable = false;
2932                         break;
2933                 }
2934                 code = NOMENCL_CODE;
2935                 break;
2936         case LFUN_NOMENCL_PRINT:
2937                 code = NOMENCL_PRINT_CODE;
2938                 // not allowed in description items
2939                 enable = !inDescriptionItem(cur);
2940                 break;
2941         case LFUN_HREF_INSERT:
2942                 if (cur.selIsMultiCell() || cur.selIsMultiLine()) {
2943                         enable = false;
2944                         break;
2945                 }
2946                 code = HYPERLINK_CODE;
2947                 break;
2948         case LFUN_IPAMACRO_INSERT: {
2949                 string const arg = cmd.getArg(0);
2950                 if (arg == "deco")
2951                         code = IPADECO_CODE;
2952                 else
2953                         code = IPACHAR_CODE;
2954                 break;
2955         }
2956         case LFUN_QUOTE_INSERT:
2957                 // always allow this, since we will inset a raw quote
2958                 // if an inset is not allowed.
2959                 allow_in_passthru = true;
2960                 break;
2961         case LFUN_SPECIALCHAR_INSERT:
2962                 code = SPECIALCHAR_CODE;
2963                 break;
2964         case LFUN_SPACE_INSERT:
2965                 // slight hack: we know this is allowed in math mode
2966                 if (cur.inTexted())
2967                         code = SPACE_CODE;
2968                 break;
2969         case LFUN_PREVIEW_INSERT:
2970                 code = PREVIEW_CODE;
2971                 break;
2972         case LFUN_SCRIPT_INSERT:
2973                 code = SCRIPT_CODE;
2974                 break;
2975
2976         case LFUN_MATH_INSERT:
2977         case LFUN_MATH_AMS_MATRIX:
2978         case LFUN_MATH_MATRIX:
2979         case LFUN_MATH_DELIM:
2980         case LFUN_MATH_BIGDELIM:
2981         case LFUN_MATH_DISPLAY:
2982         case LFUN_MATH_MODE:
2983         case LFUN_MATH_MACRO:
2984         case LFUN_MATH_SUBSCRIPT:
2985         case LFUN_MATH_SUPERSCRIPT:
2986                 code = MATH_HULL_CODE;
2987                 break;
2988
2989         case LFUN_REGEXP_MODE:
2990                 code = MATH_HULL_CODE;
2991                 enable = cur.buffer()->isInternal() && !cur.inRegexped();
2992                 break;
2993
2994         case LFUN_INSET_MODIFY:
2995                 // We need to disable this, because we may get called for a
2996                 // tabular cell via
2997                 // InsetTabular::getStatus() -> InsetText::getStatus()
2998                 // and we don't handle LFUN_INSET_MODIFY.
2999                 enable = false;
3000                 break;
3001
3002         case LFUN_FONT_EMPH:
3003                 flag.setOnOff(fontinfo.emph() == FONT_ON);
3004                 enable = !cur.paragraph().isPassThru();
3005                 break;
3006
3007         case LFUN_FONT_ITAL:
3008                 flag.setOnOff(fontinfo.shape() == ITALIC_SHAPE);
3009                 enable = !cur.paragraph().isPassThru();
3010                 break;
3011
3012         case LFUN_FONT_NOUN:
3013                 flag.setOnOff(fontinfo.noun() == FONT_ON);
3014                 enable = !cur.paragraph().isPassThru();
3015                 break;
3016
3017         case LFUN_FONT_BOLD:
3018         case LFUN_FONT_BOLDSYMBOL:
3019                 flag.setOnOff(fontinfo.series() == BOLD_SERIES);
3020                 enable = !cur.paragraph().isPassThru();
3021                 break;
3022
3023         case LFUN_FONT_SANS:
3024                 flag.setOnOff(fontinfo.family() == SANS_FAMILY);
3025                 enable = !cur.paragraph().isPassThru();
3026                 break;
3027
3028         case LFUN_FONT_ROMAN:
3029                 flag.setOnOff(fontinfo.family() == ROMAN_FAMILY);
3030                 enable = !cur.paragraph().isPassThru();
3031                 break;
3032
3033         case LFUN_FONT_TYPEWRITER:
3034                 flag.setOnOff(fontinfo.family() == TYPEWRITER_FAMILY);
3035                 enable = !cur.paragraph().isPassThru();
3036                 break;
3037
3038         case LFUN_CUT:
3039         case LFUN_COPY:
3040                 enable = cur.selection();
3041                 break;
3042
3043         case LFUN_PASTE: {
3044                 if (cmd.argument().empty()) {
3045                         if (theClipboard().isInternal())
3046                                 enable = cap::numberOfSelections() > 0;
3047                         else
3048                                 enable = !theClipboard().empty();
3049                         break;
3050                 }
3051
3052                 // we have an argument
3053                 string const arg = to_utf8(cmd.argument());
3054                 if (isStrUnsignedInt(arg)) {
3055                         // it's a number and therefore means the internal stack
3056                         unsigned int n = convert<unsigned int>(arg);
3057                         enable = cap::numberOfSelections() > n;
3058                         break;
3059                 }
3060
3061                 // explicit text type?
3062                 if (arg == "html") {
3063                         // Do not enable for PlainTextType, since some tidying in the
3064                         // frontend is needed for HTML, which is too unsafe for plain text.
3065                         enable = theClipboard().hasTextContents(Clipboard::HtmlTextType);
3066                         break;
3067                 } else if (arg == "latex") {
3068                         // LaTeX is usually not available on the clipboard with
3069                         // the correct MIME type, but in plain text.
3070                         enable = theClipboard().hasTextContents(Clipboard::PlainTextType) ||
3071                                  theClipboard().hasTextContents(Clipboard::LaTeXTextType);
3072                         break;
3073                 }
3074
3075                 Clipboard::GraphicsType type = Clipboard::AnyGraphicsType;
3076                 if (arg == "pdf")
3077                         type = Clipboard::PdfGraphicsType;
3078                 else if (arg == "png")
3079                         type = Clipboard::PngGraphicsType;
3080                 else if (arg == "jpeg")
3081                         type = Clipboard::JpegGraphicsType;
3082                 else if (arg == "linkback")
3083                         type = Clipboard::LinkBackGraphicsType;
3084                 else if (arg == "emf")
3085                         type = Clipboard::EmfGraphicsType;
3086                 else if (arg == "wmf")
3087                         type = Clipboard::WmfGraphicsType;
3088                 else {
3089                         // unknown argument
3090                         LYXERR0("Unrecognized graphics type: " << arg);
3091                         // we don't want to assert if the user just mistyped the LFUN
3092                         LATTEST(cmd.origin() != FuncRequest::INTERNAL);
3093                         enable = false;
3094                         break;
3095                 }
3096                 enable = theClipboard().hasGraphicsContents(type);
3097                 break;
3098         }
3099
3100         case LFUN_CLIPBOARD_PASTE:
3101         case LFUN_CLIPBOARD_PASTE_SIMPLE:
3102                 enable = !theClipboard().empty();
3103                 break;
3104
3105         case LFUN_PRIMARY_SELECTION_PASTE:
3106                 enable = cur.selection() || !theSelection().empty();
3107                 break;
3108
3109         case LFUN_SELECTION_PASTE:
3110                 enable = cap::selection();
3111                 break;
3112
3113         case LFUN_PARAGRAPH_MOVE_UP:
3114                 enable = cur.pit() > 0 && !cur.selection();
3115                 break;
3116
3117         case LFUN_PARAGRAPH_MOVE_DOWN:
3118                 enable = cur.pit() < cur.lastpit() && !cur.selection();
3119                 break;
3120
3121         case LFUN_CHANGE_ACCEPT:
3122         case LFUN_CHANGE_REJECT:
3123                 // In principle, these LFUNs should only be enabled if there
3124                 // is a change at the current position/in the current selection.
3125                 // However, without proper optimizations, this will inevitably
3126                 // result in unacceptable performance - just imagine a user who
3127                 // wants to select the complete content of a long document.
3128                 if (!cur.selection())
3129                         enable = cur.paragraph().isChanged(cur.pos());
3130                 else
3131                         // TODO: context-sensitive enabling of LFUN_CHANGE_ACCEPT/REJECT
3132                         // for selections.
3133                         enable = true;
3134                 break;
3135
3136         case LFUN_OUTLINE_UP:
3137         case LFUN_OUTLINE_DOWN:
3138         case LFUN_OUTLINE_IN:
3139         case LFUN_OUTLINE_OUT:
3140                 // FIXME: LyX is not ready for outlining within inset.
3141                 enable = isMainText()
3142                         && cur.buffer()->text().getTocLevel(cur.pit()) != Layout::NOT_IN_TOC;
3143                 break;
3144
3145         case LFUN_NEWLINE_INSERT:
3146                 // LaTeX restrictions (labels or empty par)
3147                 enable = !cur.paragraph().isPassThru()
3148                         && cur.pos() > cur.paragraph().beginOfBody();
3149                 break;
3150
3151         case LFUN_SEPARATOR_INSERT:
3152                 // Always enabled for now
3153                 enable = true;
3154                 break;
3155
3156         case LFUN_TAB_INSERT:
3157         case LFUN_TAB_DELETE:
3158                 enable = cur.paragraph().isPassThru();
3159                 break;
3160
3161         case LFUN_SET_GRAPHICS_GROUP: {
3162                 InsetGraphics * ins = graphics::getCurrentGraphicsInset(cur);
3163                 if (!ins)
3164                         enable = false;
3165                 else
3166                         flag.setOnOff(to_utf8(cmd.argument()) == ins->getParams().groupId);
3167                 break;
3168         }
3169
3170         case LFUN_NEWPAGE_INSERT:
3171                 // not allowed in description items
3172                 code = NEWPAGE_CODE;
3173                 enable = !inDescriptionItem(cur);
3174                 break;
3175
3176         case LFUN_DATE_INSERT: {
3177                 string const format = cmd.argument().empty()
3178                         ? lyxrc.date_insert_format : to_utf8(cmd.argument());
3179                 enable = support::os::is_valid_strftime(format);
3180                 break;
3181         }
3182
3183         case LFUN_LANGUAGE:
3184                 enable = !cur.paragraph().isPassThru();
3185                 flag.setOnOff(cmd.getArg(0) == cur.real_current_font.language()->lang());
3186                 break;
3187
3188         case LFUN_PARAGRAPH_BREAK:
3189                 enable = inset().allowMultiPar();
3190                 break;
3191
3192         case LFUN_SPELLING_ADD:
3193         case LFUN_SPELLING_IGNORE:
3194         case LFUN_SPELLING_REMOVE:
3195                 enable = theSpellChecker() != NULL;
3196                 if (enable && !cmd.getArg(1).empty()) {
3197                         // validate explicitly given language
3198                         Language const * const lang = const_cast<Language *>(languages.getLanguage(cmd.getArg(1)));
3199                         enable &= lang != NULL;
3200                 }
3201                 break;
3202
3203         case LFUN_LAYOUT: {
3204                 DocumentClass const & tclass = cur.buffer()->params().documentClass();
3205                 bool const ignoreautonests = cmd.getArg(1) == "ignoreautonests";
3206                 docstring layout = ignoreautonests ? from_utf8(cmd.getArg(0)) : cmd.argument();
3207                 if (layout.empty())
3208                         layout = tclass.defaultLayoutName();
3209                 enable = !owner_->forcePlainLayout() && tclass.hasLayout(layout);
3210
3211                 flag.setOnOff(layout == cur.paragraph().layout().name());
3212                 break;
3213         }
3214
3215         case LFUN_ENVIRONMENT_SPLIT: {
3216                 if (cmd.argument() == "outer") {
3217                         // check if we have an environment in our nesting hierarchy
3218                         bool res = false;
3219                         depth_type const current_depth = cur.paragraph().params().depth();
3220                         pit_type pit = cur.pit();
3221                         Paragraph cpar = pars_[pit];
3222                         while (true) {
3223                                 if (pit == 0 || cpar.params().depth() == 0)
3224                                         break;
3225                                 --pit;
3226                                 cpar = pars_[pit];
3227                                 if (cpar.params().depth() < current_depth)
3228                                         res = cpar.layout().isEnvironment();
3229                         }
3230                         enable = res;
3231                         break;
3232                 }
3233                 else if (cmd.argument() == "previous") {
3234                         // look if we have an environment in the previous par
3235                         pit_type pit = cur.pit();
3236                         Paragraph cpar = pars_[pit];
3237                         if (pit > 0) {
3238                                 --pit;
3239                                 cpar = pars_[pit];
3240                                 enable = cpar.layout().isEnvironment();
3241                                 break;
3242                         }
3243                         enable = false;
3244                         break;
3245                 }
3246                 else if (cur.paragraph().layout().isEnvironment()) {
3247                         enable = cmd.argument() == "before"
3248                                 || cur.pos() > 0 || !isFirstInSequence(cur.pit());
3249                         break;
3250                 }
3251                 enable = false;
3252                 break;
3253         }
3254
3255         case LFUN_LAYOUT_PARAGRAPH:
3256         case LFUN_PARAGRAPH_PARAMS:
3257         case LFUN_PARAGRAPH_PARAMS_APPLY:
3258         case LFUN_PARAGRAPH_UPDATE:
3259                 enable = owner_->allowParagraphCustomization();
3260                 break;
3261
3262         // FIXME: why are accent lfuns forbidden with pass_thru layouts?
3263         //  Because they insert COMBINING DIACRITICAL Unicode characters,
3264         //  that cannot be handled by LaTeX but must be converted according
3265         //  to the definition in lib/unicodesymbols?
3266         case LFUN_ACCENT_ACUTE:
3267         case LFUN_ACCENT_BREVE:
3268         case LFUN_ACCENT_CARON:
3269         case LFUN_ACCENT_CEDILLA:
3270         case LFUN_ACCENT_CIRCLE:
3271         case LFUN_ACCENT_CIRCUMFLEX:
3272         case LFUN_ACCENT_DOT:
3273         case LFUN_ACCENT_GRAVE:
3274         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
3275         case LFUN_ACCENT_MACRON:
3276         case LFUN_ACCENT_OGONEK:
3277         case LFUN_ACCENT_TIE:
3278         case LFUN_ACCENT_TILDE:
3279         case LFUN_ACCENT_PERISPOMENI:
3280         case LFUN_ACCENT_UMLAUT:
3281         case LFUN_ACCENT_UNDERBAR:
3282         case LFUN_ACCENT_UNDERDOT:
3283         case LFUN_FONT_DEFAULT:
3284         case LFUN_FONT_FRAK:
3285         case LFUN_FONT_SIZE:
3286         case LFUN_FONT_STATE:
3287         case LFUN_FONT_UNDERLINE:
3288         case LFUN_FONT_STRIKEOUT:
3289         case LFUN_FONT_CROSSOUT:
3290         case LFUN_FONT_UNDERUNDERLINE:
3291         case LFUN_FONT_UNDERWAVE:
3292         case LFUN_TEXTSTYLE_APPLY:
3293         case LFUN_TEXTSTYLE_UPDATE:
3294                 enable = !cur.paragraph().isPassThru();
3295                 break;
3296
3297         case LFUN_WORD_DELETE_FORWARD:
3298         case LFUN_WORD_DELETE_BACKWARD:
3299         case LFUN_LINE_DELETE_FORWARD:
3300         case LFUN_WORD_FORWARD:
3301         case LFUN_WORD_BACKWARD:
3302         case LFUN_WORD_RIGHT:
3303         case LFUN_WORD_LEFT:
3304         case LFUN_CHAR_FORWARD:
3305         case LFUN_CHAR_FORWARD_SELECT:
3306         case LFUN_CHAR_BACKWARD:
3307         case LFUN_CHAR_BACKWARD_SELECT:
3308         case LFUN_CHAR_LEFT:
3309         case LFUN_CHAR_LEFT_SELECT:
3310         case LFUN_CHAR_RIGHT:
3311         case LFUN_CHAR_RIGHT_SELECT:
3312         case LFUN_UP:
3313         case LFUN_UP_SELECT:
3314         case LFUN_DOWN:
3315         case LFUN_DOWN_SELECT:
3316         case LFUN_PARAGRAPH_UP_SELECT:
3317         case LFUN_PARAGRAPH_DOWN_SELECT:
3318         case LFUN_LINE_BEGIN_SELECT:
3319         case LFUN_LINE_END_SELECT:
3320         case LFUN_WORD_FORWARD_SELECT:
3321         case LFUN_WORD_BACKWARD_SELECT:
3322         case LFUN_WORD_RIGHT_SELECT:
3323         case LFUN_WORD_LEFT_SELECT:
3324         case LFUN_WORD_SELECT:
3325         case LFUN_SECTION_SELECT:
3326         case LFUN_BUFFER_BEGIN:
3327         case LFUN_BUFFER_END:
3328         case LFUN_BUFFER_BEGIN_SELECT:
3329         case LFUN_BUFFER_END_SELECT:
3330         case LFUN_INSET_BEGIN:
3331         case LFUN_INSET_END:
3332         case LFUN_INSET_BEGIN_SELECT:
3333         case LFUN_INSET_END_SELECT:
3334         case LFUN_PARAGRAPH_UP:
3335         case LFUN_PARAGRAPH_DOWN:
3336         case LFUN_LINE_BEGIN:
3337         case LFUN_LINE_END:
3338         case LFUN_CHAR_DELETE_FORWARD:
3339         case LFUN_CHAR_DELETE_BACKWARD:
3340         case LFUN_WORD_UPCASE:
3341         case LFUN_WORD_LOWCASE:
3342         case LFUN_WORD_CAPITALIZE:
3343         case LFUN_CHARS_TRANSPOSE:
3344         case LFUN_SERVER_GET_XY:
3345         case LFUN_SERVER_SET_XY:
3346         case LFUN_SERVER_GET_LAYOUT:
3347         case LFUN_SELF_INSERT:
3348         case LFUN_UNICODE_INSERT:
3349         case LFUN_THESAURUS_ENTRY:
3350         case LFUN_ESCAPE:
3351         case LFUN_SERVER_GET_STATISTICS:
3352                 // these are handled in our dispatch()
3353                 enable = true;
3354                 break;
3355
3356         case LFUN_INSET_INSERT: {
3357                 string const type = cmd.getArg(0);
3358                 if (type == "toc") {
3359                         code = TOC_CODE;
3360                         // not allowed in description items
3361                         //FIXME: couldn't this be merged in Inset::insetAllowed()?
3362                         enable = !inDescriptionItem(cur);
3363                 } else {
3364                         enable = true;
3365                 }
3366                 break;
3367         }
3368
3369         default:
3370                 return false;
3371         }
3372
3373         if (code != NO_CODE
3374             && (cur.empty()
3375                 || !cur.inset().insetAllowed(code)
3376                 || (cur.paragraph().layout().pass_thru && !allow_in_passthru)))
3377                 enable = false;
3378
3379         flag.setEnabled(enable);
3380         return true;
3381 }
3382
3383
3384 void Text::pasteString(Cursor & cur, docstring const & clip,
3385                 bool asParagraphs)
3386 {
3387         if (!clip.empty()) {
3388                 cur.recordUndo();
3389                 if (asParagraphs)
3390                         insertStringAsParagraphs(cur, clip, cur.current_font);
3391                 else
3392                         insertStringAsLines(cur, clip, cur.current_font);
3393         }
3394 }
3395
3396
3397 // FIXME: an item inset would make things much easier.
3398 bool Text::inDescriptionItem(Cursor & cur) const
3399 {
3400         Paragraph & par = cur.paragraph();
3401         pos_type const pos = cur.pos();
3402         pos_type const body_pos = par.beginOfBody();
3403
3404         if (par.layout().latextype != LATEX_LIST_ENVIRONMENT
3405             && (par.layout().latextype != LATEX_ITEM_ENVIRONMENT
3406                 || par.layout().margintype != MARGIN_FIRST_DYNAMIC))
3407                 return false;
3408
3409         return (pos < body_pos
3410                 || (pos == body_pos
3411                     && (pos == 0 || par.getChar(pos - 1) != ' ')));
3412 }
3413
3414 } // namespace lyx