src/Text3.cpp

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