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