src/Text3.cpp

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