src/Text3.cpp

   1 /**
   2  * \file Text3.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Asger Alstrup
   7  * \author Lars Gullik Bjønnes
   8  * \author Alfredo Braunstein
   9  * \author Angus Leeming
  10  * \author John Levon
  11  * \author André Pönitz
  12  *
  13  * Full author contact details are available in file CREDITS.
  14  */
  15
  16 #include <config.h>
  17
  18 #include "Text.h"
  19
  20 #include "BranchList.h"
  21 #include "FloatList.h"
  22 #include "FuncStatus.h"
  23 #include "Buffer.h"
  24 #include "buffer_funcs.h"
  25 #include "BufferParams.h"
  26 #include "BufferView.h"
  27 #include "Changes.h"
  28 #include "Cursor.h"
  29 #include "CutAndPaste.h"
  30 #include "DispatchResult.h"
  31 #include "ErrorList.h"
  32 #include "factory.h"
  33 #include "FuncRequest.h"
  34 #include "InsetList.h"
  35 #include "Intl.h"
  36 #include "Language.h"
  37 #include "Layout.h"
  38 #include "LyXAction.h"
  39 #include "LyX.h"
  40 #include "Lexer.h"
  41 #include "LyXRC.h"
  42 #include "Paragraph.h"
  43 #include "ParagraphParameters.h"
  44 #include "SpellChecker.h"
  45 #include "TextClass.h"
  46 #include "TextMetrics.h"
  47 #include "Thesaurus.h"
  48 #include "WordLangTuple.h"
  49
  50 #include "frontends/alert.h"
  51 #include "frontends/Application.h"
  52 #include "frontends/Clipboard.h"
  53 #include "frontends/Selection.h"
  54
  55 #include "insets/InsetArgument.h"
  56 #include "insets/InsetCollapsible.h"
  57 #include "insets/InsetCommand.h"
  58 #include "insets/InsetExternal.h"
  59 #include "insets/InsetFloat.h"
  60 #include "insets/InsetFloatList.h"
  61 #include "insets/InsetGraphics.h"
  62 #include "insets/InsetGraphicsParams.h"
  63 #include "insets/InsetIPAMacro.h"
  64 #include "insets/InsetNewline.h"
  65 #include "insets/InsetQuotes.h"
  66 #include "insets/InsetSpecialChar.h"
  67 #include "insets/InsetText.h"
  68 #include "insets/InsetWrap.h"
  69
  70 #include "support/convert.h"
  71 #include "support/debug.h"
  72 #include "support/gettext.h"
  73 #include "support/lassert.h"
  74 #include "support/lstrings.h"
  75 #include "support/lyxalgo.h"
  76 #include "support/lyxtime.h"
  77 #include "support/os.h"
  78 #include "support/regex.h"
  79
  80 #include "mathed/InsetMathHull.h"
  81 #include "mathed/InsetMathMacroTemplate.h"
  82
  83 #include <clocale>
  84 #include <sstream>
  85
  86 using namespace std;
  87 using namespace lyx::support;
  88
  89 namespace lyx {
  90
  91 using cap::copySelection;
  92 using cap::cutSelection;
  93 using cap::cutSelectionToTemp;
  94 using cap::pasteFromStack;
  95 using cap::pasteFromTemp;
  96 using cap::pasteClipboardText;
  97 using cap::pasteClipboardGraphics;
  98 using cap::replaceSelection;
  99 using cap::grabAndEraseSelection;
 100 using cap::selClearOrDel;
 101 using cap::pasteSimpleText;
 102 using frontend::Clipboard;
 103
 104 // globals...
 105 static Font freefont(ignore_font, ignore_language);
 106 static bool toggleall = false;
 107
 108 static void toggleAndShow(Cursor & cur, Text * text,
 109         Font const & font, bool togall = true)
 110 {
 111         text->toggleFree(cur, font, togall);
 112
 113         if (font.language() != ignore_language ||
 114             font.fontInfo().number() != FONT_IGNORE) {
 115                 TextMetrics const & tm = cur.bv().textMetrics(text);
 116                 if (cur.boundary() != tm.isRTLBoundary(cur.pit(), cur.pos(),
 117                                                        cur.real_current_font))
 118                         text->setCursor(cur, cur.pit(), cur.pos(),
 119                                         false, !cur.boundary());
 120         }
 121 }
 122
 123
 124 static void moveCursor(Cursor & cur, bool selecting)
 125 {
 126         if (selecting || cur.mark())
 127                 cur.setSelection();
 128 }
 129
 130
 131 static void finishChange(Cursor & cur, bool selecting)
 132 {
 133         cur.finishUndo();
 134         moveCursor(cur, selecting);
 135 }
 136
 137
 138 static void mathDispatch(Cursor & cur, FuncRequest const & cmd)
 139 {
 140         cur.recordUndo();
 141         docstring sel = cur.selectionAsString(false);
 142
 143         // It may happen that sel is empty but there is a selection
 144         replaceSelection(cur);
 145
 146         // Is this a valid formula?
 147         bool valid = true;
 148
 149         if (sel.empty()) {
 150 #ifdef ENABLE_ASSERTIONS
 151                 const int old_pos = cur.pos();
 152 #endif
 153                 cur.insert(new InsetMathHull(cur.buffer(), hullSimple));
 154 #ifdef ENABLE_ASSERTIONS
 155                 LATTEST(old_pos == cur.pos());
 156 #endif
 157                 cur.nextInset()->edit(cur, true);
 158                 if (cmd.action() != LFUN_MATH_MODE)
 159                         // LFUN_MATH_MODE has a different meaning in math mode
 160                         cur.dispatch(cmd);
 161         } else {
 162                 InsetMathHull * formula = new InsetMathHull(cur.buffer());
 163                 string const selstr = to_utf8(sel);
 164                 istringstream is(selstr);
 165                 Lexer lex;
 166                 lex.setStream(is);
 167                 if (!formula->readQuiet(lex)) {
 168                         // No valid formula, let's try with delims
 169                         is.str("$" + selstr + "$");
 170                         lex.setStream(is);
 171                         if (!formula->readQuiet(lex)) {
 172                                 // Still not valid, leave it as is
 173                                 valid = false;
 174                                 delete formula;
 175                                 cur.insert(sel);
 176                         }
 177                 }
 178                 if (valid) {
 179                         cur.insert(formula);
 180                         cur.nextInset()->edit(cur, true);
 181                         LASSERT(cur.inMathed(), return);
 182                         cur.pos() = 0;
 183                         cur.resetAnchor();
 184                         cur.selection(true);
 185                         cur.pos() = cur.lastpos();
 186                         if (cmd.action() != LFUN_MATH_MODE)
 187                                 // LFUN_MATH_MODE has a different meaning in math mode
 188                                 cur.dispatch(cmd);
 189                         cur.clearSelection();
 190                         cur.pos() = cur.lastpos();
 191                 }
 192         }
 193         if (valid)
 194                 cur.message(from_utf8(N_("Math editor mode")));
 195         else
 196                 cur.message(from_utf8(N_("No valid math formula")));
 197 }
 198
 199
 200 void regexpDispatch(Cursor & cur, FuncRequest const & cmd)
 201 {
 202         LASSERT(cmd.action() == LFUN_REGEXP_MODE, return);
 203         if (cur.inRegexped()) {
 204                 cur.message(_("Already in regular expression mode"));
 205                 return;
 206         }
 207         cur.recordUndo();
 208         docstring sel = cur.selectionAsString(false);
 209
 210         // It may happen that sel is empty but there is a selection
 211         replaceSelection(cur);
 212
 213         cur.insert(new InsetMathHull(cur.buffer(), hullRegexp));
 214         cur.nextInset()->edit(cur, true);
 215         cur.niceInsert(sel);
 216
 217         cur.message(_("Regexp editor mode"));
 218 }
 219
 220
 221 static void specialChar(Cursor & cur, InsetSpecialChar::Kind kind)
 222 {
 223         cur.recordUndo();
 224         cap::replaceSelection(cur);
 225         cur.insert(new InsetSpecialChar(kind));
 226         cur.posForward();
 227 }
 228
 229
 230 static void ipaChar(Cursor & cur, InsetIPAChar::Kind kind)
 231 {
 232         cur.recordUndo();
 233         cap::replaceSelection(cur);
 234         cur.insert(new InsetIPAChar(kind));
 235         cur.posForward();
 236 }
 237
 238
 239 static bool doInsertInset(Cursor & cur, Text * text,
 240         FuncRequest const & cmd, bool edit, bool pastesel)
 241 {
 242         Buffer & buffer = cur.bv().buffer();
 243         BufferParams const & bparams = buffer.params();
 244         Inset * inset = createInset(&buffer, cmd);
 245         if (!inset)
 246                 return false;
 247
 248         if (InsetCollapsible * ci = inset->asInsetCollapsible())
 249                 ci->setButtonLabel();
 250
 251         cur.recordUndo();
 252         if (cmd.action() == LFUN_INDEX_INSERT) {
 253                 docstring ds = subst(text->getStringToIndex(cur), '\n', ' ');
 254                 text->insertInset(cur, inset);
 255                 if (edit)
 256                         inset->edit(cur, true);
 257                 // Now put this into inset
 258                 Font const f(inherit_font, cur.current_font.language());
 259                 if (!ds.empty()) {
 260                         cur.text()->insertStringAsLines(cur, ds, f);
 261                         cur.leaveInset(*inset);
 262                 }
 263                 return true;
 264         }
 265         else if (cmd.action() == LFUN_ARGUMENT_INSERT) {
 266                 bool cotextinsert = false;
 267                 InsetArgument const * const ia = static_cast<InsetArgument const *>(inset);
 268                 Layout const & lay = cur.paragraph().layout();
 269                 Layout::LaTeXArgMap args = lay.args();
 270                 Layout::LaTeXArgMap::const_iterator const lait = args.find(ia->name());
 271                 if (lait != args.end())
 272                         cotextinsert = (*lait).second.insertcotext;
 273                 else {
 274                         InsetLayout const & il = cur.inset().getLayout();
 275                         args = il.args();
 276                         Layout::LaTeXArgMap::const_iterator const ilait = args.find(ia->name());
 277                         if (ilait != args.end())
 278                                 cotextinsert = (*ilait).second.insertcotext;
 279                 }
 280                 // The argument requests to insert a copy of the co-text to the inset
 281                 if (cotextinsert) {
 282                         docstring ds;
 283                         // If we have a selection within a paragraph, use this
 284                         if (cur.selection() && cur.selBegin().pit() == cur.selEnd().pit())
 285                                 ds = cur.selectionAsString(false);
 286                         // else use the whole paragraph
 287                         else
 288                                 ds = cur.paragraph().asString();
 289                         text->insertInset(cur, inset);
 290                         if (edit)
 291                                 inset->edit(cur, true);
 292                         // Now put co-text into inset
 293                         Font const f(inherit_font, cur.current_font.language());
 294                         if (!ds.empty()) {
 295                                 cur.text()->insertStringAsLines(cur, ds, f);
 296                                 cur.leaveInset(*inset);
 297                         }
 298                         return true;
 299                 }
 300         }
 301
 302         bool gotsel = false;
 303         if (cur.selection()) {
 304                 cutSelectionToTemp(cur, false, pastesel);
 305                 cur.clearSelection();
 306                 gotsel = true;
 307         }
 308         text->insertInset(cur, inset);
 309
 310         if (edit)
 311                 inset->edit(cur, true);
 312
 313         if (!gotsel || !pastesel)
 314                 return true;
 315
 316         pasteFromTemp(cur, cur.buffer()->errorList("Paste"));
 317         cur.buffer()->errors("Paste");
 318         cur.clearSelection(); // bug 393
 319         cur.finishUndo();
 320         InsetText * inset_text = inset->asInsetText();
 321         if (inset_text) {
 322                 inset_text->fixParagraphsFont();
 323                 if (!inset_text->allowMultiPar() || cur.lastpit() == 0) {
 324                         // reset first par to default
 325                         cur.text()->paragraphs().begin()
 326                                 ->setPlainOrDefaultLayout(bparams.documentClass());
 327                         cur.pos() = 0;
 328                         cur.pit() = 0;
 329                         // Merge multiple paragraphs -- hack
 330                         while (cur.lastpit() > 0)
 331                                 mergeParagraph(bparams, cur.text()->paragraphs(), 0);
 332                         if (cmd.action() == LFUN_FLEX_INSERT)
 333                                 return true;
 334                         Cursor old = cur;
 335                         cur.leaveInset(*inset);
 336                         if (cmd.action() == LFUN_PREVIEW_INSERT
 337                             || cmd.action() == LFUN_IPA_INSERT)
 338                                 // trigger preview
 339                                 notifyCursorLeavesOrEnters(old, cur);
 340                 }
 341         } else {
 342                 cur.leaveInset(*inset);
 343                 // reset surrounding par to default
 344                 DocumentClass const & dc = bparams.documentClass();
 345                 docstring const layoutname = inset->usePlainLayout()
 346                         ? dc.plainLayoutName()
 347                         : dc.defaultLayoutName();
 348                 text->setLayout(cur, layoutname);
 349         }
 350         return true;
 351 }
 352
 353
 354 string const freefont2string()
 355 {
 356         return freefont.toString(toggleall);
 357 }
 358
 359
 360 /// the type of outline operation
 361 enum OutlineOp {
 362         OutlineUp, // Move this header with text down
 363         OutlineDown,   // Move this header with text up
 364         OutlineIn, // Make this header deeper
 365         OutlineOut // Make this header shallower
 366 };
 367
 368
 369 static void insertSeparator(Cursor & cur, depth_type const depth)
 370 {
 371         Buffer & buf = *cur.buffer();
 372         lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK));
 373         DocumentClass const & tc = buf.params().documentClass();
 374         lyx::dispatch(FuncRequest(LFUN_LAYOUT, from_ascii("\"") + tc.plainLayout().name()
 375                                   + from_ascii("\" ignoreautonests")));
 376         // FIXME: Bibitem mess!
 377         if (cur.prevInset() && cur.prevInset()->lyxCode() == BIBITEM_CODE)
 378                 lyx::dispatch(FuncRequest(LFUN_CHAR_DELETE_BACKWARD));
 379         lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "plain"));
 380         while (cur.paragraph().params().depth() > depth)
 381                 lyx::dispatch(FuncRequest(LFUN_DEPTH_DECREMENT));
 382 }
 383
 384
 385 static void outline(OutlineOp mode, Cursor & cur, Text * text)
 386 {
 387         Buffer & buf = *cur.buffer();
 388         pit_type & pit = cur.pit();
 389         ParagraphList & pars = buf.text().paragraphs();
 390         ParagraphList::iterator const bgn = pars.begin();
 391         // The first paragraph of the area to be copied:
 392         ParagraphList::iterator start = lyx::next(bgn, pit);
 393         // The final paragraph of area to be copied:
 394         ParagraphList::iterator finish = start;
 395         ParagraphList::iterator const end = pars.end();
 396         depth_type const current_depth = cur.paragraph().params().depth();
 397
 398         int const thistoclevel = buf.text().getTocLevel(distance(bgn, start));
 399         int toclevel;
 400
 401         // Move out (down) from this section header
 402         if (finish != end)
 403                 ++finish;
 404
 405         // Seek the one (on same level) below
 406         for (; finish != end; ++finish) {
 407                 toclevel = buf.text().getTocLevel(distance(bgn, finish));
 408                 if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel)
 409                         break;
 410         }
 411
 412         switch (mode) {
 413                 case OutlineUp: {
 414                         if (start == pars.begin())
 415                                 // Nothing to move.
 416                                 return;
 417                         ParagraphList::iterator dest = start;
 418                         // Move out (up) from this header
 419                         if (dest == bgn)
 420                                 return;
 421                         // Search previous same-level header above
 422                         do {
 423                                 --dest;
 424                                 toclevel = buf.text().getTocLevel(distance(bgn, dest));
 425                         } while(dest != bgn
 426                                 && (toclevel == Layout::NOT_IN_TOC
 427                                     || toclevel > thistoclevel));
 428                         // Not found; do nothing
 429                         if (toclevel == Layout::NOT_IN_TOC || toclevel > thistoclevel)
 430                                 return;
 431                         pit_type newpit = distance(bgn, dest);
 432                         pit_type const len = distance(start, finish);
 433                         pit_type const deletepit = pit + len;
 434                         buf.undo().recordUndo(cur, newpit, deletepit - 1);
 435                         // If we move an environment upwards, make sure it is
 436                         // separated from its new neighbour below:
 437                         // If an environment of the same layout follows, and the moved
 438                         // paragraph sequence does not end with a separator, insert one.
 439                         ParagraphList::iterator lastmoved = finish;
 440                         --lastmoved;
 441                         if (start->layout().isEnvironment()
 442                             && dest->layout() == start->layout()
 443                             && !lastmoved->isEnvSeparator(lastmoved->beginOfBody())) {
 444                                 cur.pit() = distance(bgn, lastmoved);
 445                                 cur.pos() = cur.lastpos();
 446                                 insertSeparator(cur, current_depth);
 447                                 cur.pit() = pit;
 448                         }
 449                         // Likewise, if we moved an environment upwards, make sure it
 450                         // is separated from its new neighbour above.
 451                         // The paragraph before the target of movement
 452                         if (dest != bgn) {
 453                                 ParagraphList::iterator before = dest;
 454                                 --before;
 455                                 // Get the parent paragraph (outer in nested context)
 456                                 pit_type const parent =
 457                                         before->params().depth() > current_depth
 458                                                 ? text->depthHook(distance(bgn, before), current_depth)
 459                                                 : distance(bgn, before);
 460                                 // If a environment with same layout preceeds the moved one in the new
 461                                 // position, and there is no separator yet, insert one.
 462                                 if (start->layout().isEnvironment()
 463                                     && pars[parent].layout() == start->layout()
 464                                     && !before->isEnvSeparator(before->beginOfBody())) {
 465                                         cur.pit() = distance(bgn, before);
 466                                         cur.pos() = cur.lastpos();
 467                                         insertSeparator(cur, current_depth);
 468                                         cur.pit() = pit;
 469                                 }
 470                         }
 471                         newpit = distance(bgn, dest);
 472                         pars.splice(dest, start, finish);
 473                         cur.pit() = newpit;
 474                         break;
 475                 }
 476                 case OutlineDown: {
 477                         if (finish == end)
 478                                 // Nothing to move.
 479                                 return;
 480                         // Go one down from *this* header:
 481                         ParagraphList::iterator dest = next(finish, 1);
 482                         // Go further down to find header to insert in front of:
 483                         for (; dest != end; ++dest) {
 484                                 toclevel = buf.text().getTocLevel(distance(bgn, dest));
 485                                 if (toclevel != Layout::NOT_IN_TOC
 486                                       && toclevel <= thistoclevel)
 487                                         break;
 488                         }
 489                         // One such was found, so go on...
 490                         // If we move an environment downwards, make sure it is
 491                         // separated from its new neighbour above.
 492                         pit_type newpit = distance(bgn, dest);
 493                         buf.undo().recordUndo(cur, pit, newpit - 1);
 494                         // The paragraph before the target of movement
 495                         ParagraphList::iterator before = dest;
 496                         --before;
 497                         // Get the parent paragraph (outer in nested context)
 498                         pit_type const parent =
 499                                 before->params().depth() > current_depth
 500                                         ? text->depthHook(distance(bgn, before), current_depth)
 501                                         : distance(bgn, before);
 502                         // If a environment with same layout preceeds the moved one in the new
 503                         // position, and there is no separator yet, insert one.
 504                         if (start->layout().isEnvironment()
 505                             && pars[parent].layout() == start->layout()
 506                             && !before->isEnvSeparator(before->beginOfBody())) {
 507                                 cur.pit() = distance(bgn, before);
 508                                 cur.pos() = cur.lastpos();
 509                                 insertSeparator(cur, current_depth);
 510                                 cur.pit() = pit;
 511                         }
 512                         // Likewise, make sure moved environments are separated
 513                         // from their new neighbour below:
 514                         // If an environment of the same layout follows, and the moved
 515                         // paragraph sequence does not end with a separator, insert one.
 516                         ParagraphList::iterator lastmoved = finish;
 517                         --lastmoved;
 518                         if (dest != end
 519                             && start->layout().isEnvironment()
 520                             && dest->layout() == start->layout()
 521                             && !lastmoved->isEnvSeparator(lastmoved->beginOfBody())) {
 522                                 cur.pit() = distance(bgn, lastmoved);
 523                                 cur.pos() = cur.lastpos();
 524                                 insertSeparator(cur, current_depth);
 525                                 cur.pit() = pit;
 526                         }
 527                         newpit = distance(bgn, dest);
 528                         pit_type const len = distance(start, finish);
 529                         pars.splice(dest, start, finish);
 530                         cur.pit() = newpit - len;
 531                         break;
 532                 }
 533                 case OutlineIn:
 534                 case OutlineOut: {
 535                         pit_type const len = distance(start, finish);
 536                         buf.undo().recordUndo(cur, pit, pit + len - 1);
 537                         for (; start != finish; ++start) {
 538                                 toclevel = buf.text().getTocLevel(distance(bgn, start));
 539                                 if (toclevel == Layout::NOT_IN_TOC)
 540                                         continue;
 541
 542                                 DocumentClass const & tc = buf.params().documentClass();
 543                                 DocumentClass::const_iterator lit = tc.begin();
 544                                 DocumentClass::const_iterator len = tc.end();
 545                                 int const newtoclevel =
 546                                         (mode == OutlineIn ? toclevel + 1 : toclevel - 1);
 547                                 LabelType const oldlabeltype = start->layout().labeltype;
 548
 549                                 for (; lit != len; ++lit) {
 550                                         if (lit->toclevel ==  newtoclevel &&
 551                                              lit->labeltype == oldlabeltype) {
 552                                                 start->setLayout(*lit);
 553                                                 break;
 554                                         }
 555                                 }
 556                         }
 557                         break;
 558                 }
 559         }
 560 }
 561
 562
 563 void Text::number(Cursor & cur)
 564 {
 565         FontInfo font = ignore_font;
 566         font.setNumber(FONT_TOGGLE);
 567         toggleAndShow(cur, this, Font(font, ignore_language));
 568 }
 569
 570
 571 bool Text::isRTL(Paragraph const & par) const
 572 {
 573         Buffer const & buffer = owner_->buffer();
 574         return par.isRTL(buffer.params());
 575 }
 576
 577
 578 namespace {
 579
 580         Language const * getLanguage(Cursor const & cur, string const & lang) {
 581                 return lang.empty() ? cur.getFont().language() : languages.getLanguage(lang);
 582         }
 583
 584 } // namespace
 585
 586
 587 void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 588 {
 589         LYXERR(Debug::ACTION, "Text::dispatch: cmd: " << cmd);
 590
 591         // Dispatch if the cursor is inside the text. It is not the
 592         // case for context menus (bug 5797).
 593         if (cur.text() != this) {
 594                 cur.undispatched();
 595                 return;
 596         }
 597
 598         BufferView * bv = &cur.bv();
 599         TextMetrics * tm = &bv->textMetrics(this);
 600         if (!tm->contains(cur.pit())) {
 601                 lyx::dispatch(FuncRequest(LFUN_SCREEN_SHOW_CURSOR));
 602                 tm = &bv->textMetrics(this);
 603         }
 604
 605         // FIXME: We use the update flag to indicates wether a singlePar or a
 606         // full screen update is needed. We reset it here but shall we restore it
 607         // at the end?
 608         cur.noScreenUpdate();
 609
 610         LBUFERR(this == cur.text());
 611
 612         // NOTE: This should NOT be a reference. See commit 94a5481a.
 613         CursorSlice const oldTopSlice = cur.top();
 614         bool const oldBoundary = cur.boundary();
 615         bool const oldSelection = cur.selection();
 616         // Signals that, even if needsUpdate == false, an update of the
 617         // cursor paragraph is required
 618         bool singleParUpdate = lyxaction.funcHasFlag(cmd.action(),
 619                 LyXAction::SingleParUpdate);
 620         // Signals that a full-screen update is required
 621         bool needsUpdate = !(lyxaction.funcHasFlag(cmd.action(),
 622                 LyXAction::NoUpdate) || singleParUpdate);
 623         bool const last_misspelled = lyxrc.spellcheck_continuously
 624                 && cur.paragraph().isMisspelled(cur.pos(), true);
 625
 626         FuncCode const act = cmd.action();
 627         switch (act) {
 628
 629         case LFUN_PARAGRAPH_MOVE_DOWN: {
 630                 pit_type const pit = cur.pit();
 631                 cur.recordUndo(pit, pit + 1);
 632                 cur.finishUndo();
 633                 pars_.swap(pit, pit + 1);
 634                 needsUpdate = true;
 635                 cur.forceBufferUpdate();
 636                 ++cur.pit();
 637                 break;
 638         }
 639
 640         case LFUN_PARAGRAPH_MOVE_UP: {
 641                 pit_type const pit = cur.pit();
 642                 cur.recordUndo(pit - 1, pit);
 643                 cur.finishUndo();
 644                 pars_.swap(pit, pit - 1);
 645                 --cur.pit();
 646                 needsUpdate = true;
 647                 cur.forceBufferUpdate();
 648                 break;
 649         }
 650
 651         case LFUN_APPENDIX: {
 652                 Paragraph & par = cur.paragraph();
 653                 bool start = !par.params().startOfAppendix();
 654
 655 // FIXME: The code below only makes sense at top level.
 656 // Should LFUN_APPENDIX be restricted to top-level paragraphs?
 657                 // ensure that we have only one start_of_appendix in this document
 658                 // FIXME: this don't work for multipart document!
 659                 for (pit_type tmp = 0, end = pars_.size(); tmp != end; ++tmp) {
 660                         if (pars_[tmp].params().startOfAppendix()) {
 661                                 cur.recordUndo(tmp, tmp);
 662                                 pars_[tmp].params().startOfAppendix(false);
 663                                 break;
 664                         }
 665                 }
 666
 667                 cur.recordUndo();
 668                 par.params().startOfAppendix(start);
 669
 670                 // we can set the refreshing parameters now
 671                 cur.forceBufferUpdate();
 672                 break;
 673         }
 674
 675         case LFUN_WORD_DELETE_FORWARD:
 676                 if (cur.selection())
 677                         cutSelection(cur, true, false);
 678                 else
 679                         deleteWordForward(cur, cmd.getArg(0) == "force");
 680                 finishChange(cur, false);
 681                 break;
 682
 683         case LFUN_WORD_DELETE_BACKWARD:
 684                 if (cur.selection())
 685                         cutSelection(cur, true, false);
 686                 else
 687                         deleteWordBackward(cur, cmd.getArg(0) == "force");
 688                 finishChange(cur, false);
 689                 break;
 690
 691         case LFUN_LINE_DELETE_FORWARD:
 692                 if (cur.selection())
 693                         cutSelection(cur, true, false);
 694                 else
 695                         tm->deleteLineForward(cur);
 696                 finishChange(cur, false);
 697                 break;
 698
 699         case LFUN_BUFFER_BEGIN:
 700         case LFUN_BUFFER_BEGIN_SELECT:
 701                 needsUpdate |= cur.selHandle(act == LFUN_BUFFER_BEGIN_SELECT);
 702                 if (cur.depth() == 1)
 703                         needsUpdate |= cursorTop(cur);
 704                 else
 705                         cur.undispatched();
 706                 cur.screenUpdateFlags(Update::FitCursor);
 707                 break;
 708
 709         case LFUN_BUFFER_END:
 710         case LFUN_BUFFER_END_SELECT:
 711                 needsUpdate |= cur.selHandle(act == LFUN_BUFFER_END_SELECT);
 712                 if (cur.depth() == 1)
 713                         needsUpdate |= cursorBottom(cur);
 714                 else
 715                         cur.undispatched();
 716                 cur.screenUpdateFlags(Update::FitCursor);
 717                 break;
 718
 719         case LFUN_INSET_BEGIN:
 720         case LFUN_INSET_BEGIN_SELECT:
 721                 needsUpdate |= cur.selHandle(act == LFUN_INSET_BEGIN_SELECT);
 722                 if (cur.depth() == 1 || !cur.top().at_begin())
 723                         needsUpdate |= cursorTop(cur);
 724                 else
 725                         cur.undispatched();
 726                 cur.screenUpdateFlags(Update::FitCursor);
 727                 break;
 728
 729         case LFUN_INSET_END:
 730         case LFUN_INSET_END_SELECT:
 731                 needsUpdate |= cur.selHandle(act == LFUN_INSET_END_SELECT);
 732                 if (cur.depth() == 1 || !cur.top().at_end())
 733                         needsUpdate |= cursorBottom(cur);
 734                 else
 735                         cur.undispatched();
 736                 cur.screenUpdateFlags(Update::FitCursor);
 737                 break;
 738
 739         case LFUN_CHAR_FORWARD:
 740         case LFUN_CHAR_FORWARD_SELECT: {
 741                 //LYXERR0(" LFUN_CHAR_FORWARD[SEL]:\n" << cur);
 742                 needsUpdate |= cur.selHandle(act == LFUN_CHAR_FORWARD_SELECT);
 743                 bool const cur_moved = cursorForward(cur);
 744                 needsUpdate |= cur_moved;
 745
 746                 if (!cur_moved && oldTopSlice == cur.top()
 747                                && cur.boundary() == oldBoundary) {
 748                         cur.undispatched();
 749                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 750
 751                         // we will probably be moving out the inset, so we should execute
 752                         // the depm-mechanism, but only when the cursor has a place to
 753                         // go outside this inset, i.e. in a slice above.
 754                         if (cur.depth() > 1 && cur.pos() == cur.lastpos()
 755                                   && cur.pit() == cur.lastpit()) {
 756                                 // The cursor hasn't changed yet. To give the
 757                                 // DEPM the possibility of doing something we must
 758                                 // provide it with two different cursors.
 759                                 Cursor dummy = cur;
 760                                 dummy.pos() = dummy.pit() = 0;
 761                                 if (cur.bv().checkDepm(dummy, cur))
 762                                         cur.forceBufferUpdate();
 763                         }
 764                 }
 765                 break;
 766         }
 767
 768         case LFUN_CHAR_BACKWARD:
 769         case LFUN_CHAR_BACKWARD_SELECT: {
 770                 //lyxerr << "handle LFUN_CHAR_BACKWARD[_SELECT]:\n" << cur << endl;
 771                 needsUpdate |= cur.selHandle(act == LFUN_CHAR_BACKWARD_SELECT);
 772                 bool const cur_moved = cursorBackward(cur);
 773                 needsUpdate |= cur_moved;
 774
 775                 if (!cur_moved && oldTopSlice == cur.top()
 776                                && cur.boundary() == oldBoundary) {
 777                         cur.undispatched();
 778                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
 779
 780                         // we will probably be moving out the inset, so we should execute
 781                         // the depm-mechanism, but only when the cursor has a place to
 782                         // go outside this inset, i.e. in a slice above.
 783                         if (cur.depth() > 1 && cur.pos() == 0 && cur.pit() == 0) {
 784                                 // The cursor hasn't changed yet. To give the
 785                                 // DEPM the possibility of doing something we must
 786                                 // provide it with two different cursors.
 787                                 Cursor dummy = cur;
 788                                 dummy.pos() = cur.lastpos();
 789                                 dummy.pit() = cur.lastpit();
 790                                 if (cur.bv().checkDepm(dummy, cur))
 791                                         cur.forceBufferUpdate();
 792                         }
 793                 }
 794                 break;
 795         }
 796
 797         case LFUN_CHAR_LEFT:
 798         case LFUN_CHAR_LEFT_SELECT:
 799                 if (lyxrc.visual_cursor) {
 800                         needsUpdate |= cur.selHandle(act == LFUN_CHAR_LEFT_SELECT);
 801                         bool const cur_moved = cursorVisLeft(cur);
 802                         needsUpdate |= cur_moved;
 803                         if (!cur_moved && oldTopSlice == cur.top()
 804                                        && cur.boundary() == oldBoundary) {
 805                                 cur.undispatched();
 806                                 cmd = FuncRequest(LFUN_FINISHED_LEFT);
 807                         }
 808                 } else {
 809                         if (cur.reverseDirectionNeeded()) {
 810                                 cmd.setAction(cmd.action() == LFUN_CHAR_LEFT_SELECT ?
 811                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD);
 812                         } else {
 813                                 cmd.setAction(cmd.action() == LFUN_CHAR_LEFT_SELECT ?
 814                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD);
 815                         }
 816                         dispatch(cur, cmd);
 817                         return;
 818                 }
 819                 break;
 820
 821         case LFUN_CHAR_RIGHT:
 822         case LFUN_CHAR_RIGHT_SELECT:
 823                 if (lyxrc.visual_cursor) {
 824                         needsUpdate |= cur.selHandle(cmd.action() == LFUN_CHAR_RIGHT_SELECT);
 825                         bool const cur_moved = cursorVisRight(cur);
 826                         needsUpdate |= cur_moved;
 827                         if (!cur_moved && oldTopSlice == cur.top()
 828                                        && cur.boundary() == oldBoundary) {
 829                                 cur.undispatched();
 830                                 cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 831                         }
 832                 } else {
 833                         if (cur.reverseDirectionNeeded()) {
 834                                 cmd.setAction(cmd.action() == LFUN_CHAR_RIGHT_SELECT ?
 835                                         LFUN_CHAR_BACKWARD_SELECT : LFUN_CHAR_BACKWARD);
 836                         } else {
 837                                 cmd.setAction(cmd.action() == LFUN_CHAR_RIGHT_SELECT ?
 838                                         LFUN_CHAR_FORWARD_SELECT : LFUN_CHAR_FORWARD);
 839                         }
 840                         dispatch(cur, cmd);
 841                         return;
 842                 }
 843                 break;
 844
 845
 846         case LFUN_UP_SELECT:
 847         case LFUN_DOWN_SELECT:
 848         case LFUN_UP:
 849         case LFUN_DOWN: {
 850                 // stop/start the selection
 851                 bool select = cmd.action() == LFUN_DOWN_SELECT ||
 852                         cmd.action() == LFUN_UP_SELECT;
 853
 854                 // move cursor up/down
 855                 bool up = cmd.action() == LFUN_UP_SELECT || cmd.action() == LFUN_UP;
 856                 bool const atFirstOrLastRow = cur.atFirstOrLastRow(up);
 857
 858                 if (!atFirstOrLastRow) {
 859                         needsUpdate |= cur.selHandle(select);
 860                         cur.upDownInText(up, needsUpdate);
 861                         needsUpdate |= cur.beforeDispatchCursor().inMathed();
 862                 } else {
 863                         pos_type newpos = up ? 0 : cur.lastpos();
 864                         if (lyxrc.mac_like_cursor_movement && cur.pos() != newpos) {
 865                                 needsUpdate |= cur.selHandle(select);
 866                                 // we do not reset the targetx of the cursor
 867                                 cur.pos() = newpos;
 868                                 needsUpdate |= bv->checkDepm(cur, bv->cursor());
 869                                 cur.updateTextTargetOffset();
 870                                 if (needsUpdate)
 871                                         cur.forceBufferUpdate();
 872                                 break;
 873                         }
 874
 875                         // if the cursor cannot be moved up or down do not remove
 876                         // the selection right now, but wait for the next dispatch.
 877                         if (select)
 878                                 needsUpdate |= cur.selHandle(select);
 879                         cur.upDownInText(up, needsUpdate);
 880                         cur.undispatched();
 881                 }
 882
 883                 break;
 884         }
 885
 886         case LFUN_PARAGRAPH_UP:
 887         case LFUN_PARAGRAPH_UP_SELECT:
 888                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_PARAGRAPH_UP_SELECT);
 889                 needsUpdate |= cursorUpParagraph(cur);
 890                 break;
 891
 892         case LFUN_PARAGRAPH_DOWN:
 893         case LFUN_PARAGRAPH_DOWN_SELECT:
 894                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_PARAGRAPH_DOWN_SELECT);
 895                 needsUpdate |= cursorDownParagraph(cur);
 896                 break;
 897
 898         case LFUN_LINE_BEGIN:
 899         case LFUN_LINE_BEGIN_SELECT:
 900                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_LINE_BEGIN_SELECT);
 901                 needsUpdate |= tm->cursorHome(cur);
 902                 break;
 903
 904         case LFUN_LINE_END:
 905         case LFUN_LINE_END_SELECT:
 906                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_LINE_END_SELECT);
 907                 needsUpdate |= tm->cursorEnd(cur);
 908                 break;
 909
 910         case LFUN_SECTION_SELECT: {
 911                 Buffer const & buf = *cur.buffer();
 912                 pit_type const pit = cur.pit();
 913                 ParagraphList & pars = buf.text().paragraphs();
 914                 ParagraphList::iterator bgn = pars.begin();
 915                 // The first paragraph of the area to be selected:
 916                 ParagraphList::iterator start = lyx::next(bgn, pit);
 917                 // The final paragraph of area to be selected:
 918                 ParagraphList::iterator finish = start;
 919                 ParagraphList::iterator end = pars.end();
 920
 921                 int const thistoclevel = buf.text().getTocLevel(distance(bgn, start));
 922                 if (thistoclevel == Layout::NOT_IN_TOC)
 923                         break;
 924
 925                 cur.pos() = 0;
 926                 Cursor const old_cur = cur;
 927                 needsUpdate |= cur.selHandle(true);
 928
 929                 // Move out (down) from this section header
 930                 if (finish != end)
 931                         ++finish;
 932
 933                 // Seek the one (on same level) below
 934                 for (; finish != end; ++finish, ++cur.pit()) {
 935                         int const toclevel = buf.text().getTocLevel(distance(bgn, finish));
 936                         if (toclevel != Layout::NOT_IN_TOC && toclevel <= thistoclevel)
 937                                 break;
 938                 }
 939                 cur.pos() = cur.lastpos();
 940                 cur.boundary(false);
 941                 cur.setCurrentFont();
 942
 943                 needsUpdate |= cur != old_cur;
 944                 break;
 945         }
 946
 947         case LFUN_WORD_RIGHT:
 948         case LFUN_WORD_RIGHT_SELECT:
 949                 if (lyxrc.visual_cursor) {
 950                         needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_RIGHT_SELECT);
 951                         bool const cur_moved = cursorVisRightOneWord(cur);
 952                         needsUpdate |= cur_moved;
 953                         if (!cur_moved && oldTopSlice == cur.top()
 954                                        && cur.boundary() == oldBoundary) {
 955                                 cur.undispatched();
 956                                 cmd = FuncRequest(LFUN_FINISHED_RIGHT);
 957                         }
 958                 } else {
 959                         if (cur.reverseDirectionNeeded()) {
 960                                 cmd.setAction(cmd.action() == LFUN_WORD_RIGHT_SELECT ?
 961                                                 LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD);
 962                         } else {
 963                                 cmd.setAction(cmd.action() == LFUN_WORD_RIGHT_SELECT ?
 964                                                 LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD);
 965                         }
 966                         dispatch(cur, cmd);
 967                         return;
 968                 }
 969                 break;
 970
 971         case LFUN_WORD_FORWARD:
 972         case LFUN_WORD_FORWARD_SELECT: {
 973                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_FORWARD_SELECT);
 974                 bool const cur_moved = cursorForwardOneWord(cur);
 975                 needsUpdate |= cur_moved;
 976
 977                 if (!cur_moved && oldTopSlice == cur.top()
 978                                && cur.boundary() == oldBoundary) {
 979                         cur.undispatched();
 980                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
 981
 982                         // we will probably be moving out the inset, so we should execute
 983                         // the depm-mechanism, but only when the cursor has a place to
 984                         // go outside this inset, i.e. in a slice above.
 985                         if (cur.depth() > 1 && cur.pos() == cur.lastpos()
 986                                   && cur.pit() == cur.lastpit()) {
 987                                 // The cursor hasn't changed yet. To give the
 988                                 // DEPM the possibility of doing something we must
 989                                 // provide it with two different cursors.
 990                                 Cursor dummy = cur;
 991                                 dummy.pos() = dummy.pit() = 0;
 992                                 if (cur.bv().checkDepm(dummy, cur))
 993                                         cur.forceBufferUpdate();
 994                         }
 995                 }
 996                 break;
 997         }
 998
 999         case LFUN_WORD_LEFT:
1000         case LFUN_WORD_LEFT_SELECT:
1001                 if (lyxrc.visual_cursor) {
1002                         needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_LEFT_SELECT);
1003                         bool const cur_moved = cursorVisLeftOneWord(cur);
1004                         needsUpdate |= cur_moved;
1005                         if (!cur_moved && oldTopSlice == cur.top()
1006                                        && cur.boundary() == oldBoundary) {
1007                                 cur.undispatched();
1008                                 cmd = FuncRequest(LFUN_FINISHED_LEFT);
1009                         }
1010                 } else {
1011                         if (cur.reverseDirectionNeeded()) {
1012                                 cmd.setAction(cmd.action() == LFUN_WORD_LEFT_SELECT ?
1013                                                 LFUN_WORD_FORWARD_SELECT : LFUN_WORD_FORWARD);
1014                         } else {
1015                                 cmd.setAction(cmd.action() == LFUN_WORD_LEFT_SELECT ?
1016                                                 LFUN_WORD_BACKWARD_SELECT : LFUN_WORD_BACKWARD);
1017                         }
1018                         dispatch(cur, cmd);
1019                         return;
1020                 }
1021                 break;
1022
1023         case LFUN_WORD_BACKWARD:
1024         case LFUN_WORD_BACKWARD_SELECT: {
1025                 needsUpdate |= cur.selHandle(cmd.action() == LFUN_WORD_BACKWARD_SELECT);
1026                 bool const cur_moved = cursorBackwardOneWord(cur);
1027                 needsUpdate |= cur_moved;
1028
1029                 if (!cur_moved && oldTopSlice == cur.top()
1030                                && cur.boundary() == oldBoundary) {
1031                         cur.undispatched();
1032                         cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
1033
1034                         // we will probably be moving out the inset, so we should execute
1035                         // the depm-mechanism, but only when the cursor has a place to
1036                         // go outside this inset, i.e. in a slice above.
1037                         if (cur.depth() > 1 && cur.pos() == 0
1038                                   && cur.pit() == 0) {
1039                                 // The cursor hasn't changed yet. To give the
1040                                 // DEPM the possibility of doing something we must
1041                                 // provide it with two different cursors.
1042                                 Cursor dummy = cur;
1043                                 dummy.pos() = cur.lastpos();
1044                                 dummy.pit() = cur.lastpit();
1045                                 if (cur.bv().checkDepm(dummy, cur))
1046                                         cur.forceBufferUpdate();
1047                         }
1048                 }
1049                 break;
1050         }
1051
1052         case LFUN_WORD_SELECT: {
1053                 selectWord(cur, WHOLE_WORD);
1054                 finishChange(cur, true);
1055                 break;
1056         }
1057
1058         case LFUN_NEWLINE_INSERT: {
1059                 InsetNewlineParams inp;
1060                 docstring arg = cmd.argument();
1061                 if (arg == "linebreak")
1062                         inp.kind = InsetNewlineParams::LINEBREAK;
1063                 else
1064                         inp.kind = InsetNewlineParams::NEWLINE;
1065                 cap::replaceSelection(cur);
1066                 cur.recordUndo();
1067                 cur.insert(new InsetNewline(inp));
1068                 cur.posForward();
1069                 moveCursor(cur, false);
1070                 break;
1071         }
1072
1073         case LFUN_TAB_INSERT: {
1074                 bool const multi_par_selection = cur.selection() &&
1075                         cur.selBegin().pit() != cur.selEnd().pit();
1076                 if (multi_par_selection) {
1077                         // If there is a multi-paragraph selection, a tab is inserted
1078                         // at the beginning of each paragraph.
1079                         cur.recordUndoSelection();
1080                         pit_type const pit_end = cur.selEnd().pit();
1081                         for (pit_type pit = cur.selBegin().pit(); pit <= pit_end; pit++) {
1082                                 pars_[pit].insertChar(0, '\t',
1083                                                       bv->buffer().params().track_changes);
1084                                 // Update the selection pos to make sure the selection does not
1085                                 // change as the inserted tab will increase the logical pos.
1086                                 if (cur.realAnchor().pit() == pit)
1087                                         cur.realAnchor().forwardPos();
1088                                 if (cur.pit() == pit)
1089                                         cur.forwardPos();
1090                         }
1091                         cur.finishUndo();
1092                 } else {
1093                         // Maybe we shouldn't allow tabs within a line, because they
1094                         // are not (yet) aligned as one might do expect.
1095                         FuncRequest ncmd(LFUN_SELF_INSERT, from_ascii("\t"));
1096                         dispatch(cur, ncmd);
1097                 }
1098                 break;
1099         }
1100
1101         case LFUN_TAB_DELETE: {
1102                 bool const tc = bv->buffer().params().track_changes;
1103                 if (cur.selection()) {
1104                         // If there is a selection, a tab (if present) is removed from
1105                         // the beginning of each paragraph.
1106                         cur.recordUndoSelection();
1107                         pit_type const pit_end = cur.selEnd().pit();
1108                         for (pit_type pit = cur.selBegin().pit(); pit <= pit_end; pit++) {
1109                                 Paragraph & par = paragraphs()[pit];
1110                                 if (par.empty())
1111                                         continue;
1112                                 char_type const c = par.getChar(0);
1113                                 if (c == '\t' || c == ' ') {
1114                                         // remove either 1 tab or 4 spaces.
1115                                         int const n = (c == ' ' ? 4 : 1);
1116                                         for (int i = 0; i < n
1117                                                   && !par.empty() && par.getChar(0) == c; ++i) {
1118                                                 if (cur.pit() == pit)
1119                                                         cur.posBackward();
1120                                                 if (cur.realAnchor().pit() == pit
1121                                                           && cur.realAnchor().pos() > 0 )
1122                                                         cur.realAnchor().backwardPos();
1123                                                 par.eraseChar(0, tc);
1124                                         }
1125                                 }
1126                         }
1127                         cur.finishUndo();
1128                 } else {
1129                         // If there is no selection, try to remove a tab or some spaces
1130                         // before the position of the cursor.
1131                         Paragraph & par = paragraphs()[cur.pit()];
1132                         pos_type const pos = cur.pos();
1133
1134                         if (pos == 0)
1135                                 break;
1136
1137                         char_type const c = par.getChar(pos - 1);
1138                         cur.recordUndo();
1139                         if (c == '\t') {
1140                                 cur.posBackward();
1141                                 par.eraseChar(cur.pos(), tc);
1142                         } else
1143                                 for (int n_spaces = 0;
1144                                      cur.pos() > 0
1145                                              && par.getChar(cur.pos() - 1) == ' '
1146                                              && n_spaces < 4;
1147                                      ++n_spaces) {
1148                                         cur.posBackward();
1149                                         par.eraseChar(cur.pos(), tc);
1150                                 }
1151                         cur.finishUndo();
1152                 }
1153                 break;
1154         }
1155
1156         case LFUN_CHAR_DELETE_FORWARD:
1157                 if (!cur.selection()) {
1158                         if (cur.pos() == cur.paragraph().size())
1159                                 // Par boundary, force full-screen update
1160                                 singleParUpdate = false;
1161                         else if (cmd.getArg(0) != "force" && cur.confirmDeletion()) {
1162                                 cur.resetAnchor();
1163                                 cur.selection(true);
1164                                 cur.posForward();
1165                                 cur.setSelection();
1166                                 break;
1167                         }
1168                         needsUpdate |= erase(cur);
1169                         cur.resetAnchor();
1170                 } else {
1171                         cutSelection(cur, true, false);
1172                         singleParUpdate = false;
1173                 }
1174                 moveCursor(cur, false);
1175                 break;
1176
1177         case LFUN_CHAR_DELETE_BACKWARD:
1178                 if (!cur.selection()) {
1179                         if (bv->getIntl().getTransManager().backspace()) {
1180                                 bool par_boundary = cur.pos() == 0;
1181                                 bool first_par = cur.pit() == 0;
1182                                 // Par boundary, full-screen update
1183                                 if (par_boundary)
1184                                         singleParUpdate = false;
1185                                 else if (cmd.getArg(0) != "force" && cur.confirmDeletion(true)) {
1186                                         cur.resetAnchor();
1187                                         cur.selection(true);
1188                                         cur.posBackward();
1189                                         cur.setSelection();
1190                                         break;
1191                                 }
1192                                 needsUpdate |= backspace(cur);
1193                                 cur.resetAnchor();
1194                                 if (par_boundary && !first_par && cur.pos() > 0
1195                                     && cur.paragraph().isEnvSeparator(cur.pos() - 1)) {
1196                                         needsUpdate |= backspace(cur);
1197                                         cur.resetAnchor();
1198                                 }
1199                         }
1200                 } else {
1201                         cutSelection(cur, true, false);
1202                         singleParUpdate = false;
1203                 }
1204                 break;
1205
1206         case LFUN_PARAGRAPH_BREAK: {
1207                 cap::replaceSelection(cur);
1208                 pit_type pit = cur.pit();
1209                 Paragraph const & par = pars_[pit];
1210                 bool lastpar = (pit == pit_type(pars_.size() - 1));
1211                 Paragraph const & nextpar = lastpar ? par : pars_[pit + 1];
1212                 pit_type prev = pit > 0 ? depthHook(pit, par.getDepth()) : pit;
1213                 if (prev < pit && cur.pos() == par.beginOfBody()
1214                     && !par.size() && !par.isEnvSeparator(cur.pos())
1215                     && !par.layout().isCommand()
1216                     && pars_[prev].layout() != par.layout()
1217                     && pars_[prev].layout().isEnvironment()
1218                     && !nextpar.isEnvSeparator(nextpar.beginOfBody())) {
1219                         if (par.layout().isEnvironment()
1220                             && pars_[prev].getDepth() == par.getDepth()) {
1221                                 docstring const layout = par.layout().name();
1222                                 DocumentClass const & tc = bv->buffer().params().documentClass();
1223                                 lyx::dispatch(FuncRequest(LFUN_LAYOUT, tc.plainLayout().name()));
1224                                 lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "plain"));
1225                                 lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse"));
1226                                 lyx::dispatch(FuncRequest(LFUN_LAYOUT, layout));
1227                         } else {
1228                                 lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "plain"));
1229                                 breakParagraph(cur);
1230                         }
1231                         Font const f(inherit_font, cur.current_font.language());
1232                         pars_[cur.pit() - 1].resetFonts(f);
1233                 } else {
1234                         if (par.isEnvSeparator(cur.pos()) && cmd.getArg(1) != "ignoresep")
1235                                 cur.posForward();
1236                         breakParagraph(cur, cmd.getArg(0) == "inverse");
1237                 }
1238                 cur.resetAnchor();
1239                 // If we have a list and autoinsert item insets,
1240                 // insert them now.
1241                 Layout::LaTeXArgMap args = par.layout().args();
1242                 for (auto const & thearg : args) {
1243                         Layout::latexarg arg = thearg.second;
1244                         if (arg.autoinsert && prefixIs(thearg.first, "item:")) {
1245                                 FuncRequest cmd2(LFUN_ARGUMENT_INSERT, thearg.first);
1246                                 lyx::dispatch(cmd2);
1247                         }
1248                 }
1249                 break;
1250         }
1251
1252         case LFUN_INSET_INSERT: {
1253                 cur.recordUndo();
1254
1255                 // We have to avoid triggering InstantPreview loading
1256                 // before inserting into the document. See bug #5626.
1257                 bool loaded = bv->buffer().isFullyLoaded();
1258                 bv->buffer().setFullyLoaded(false);
1259                 Inset * inset = createInset(&bv->buffer(), cmd);
1260                 bv->buffer().setFullyLoaded(loaded);
1261
1262                 if (inset) {
1263                         // FIXME (Abdel 01/02/2006):
1264                         // What follows would be a partial fix for bug 2154:
1265                         //   http://www.lyx.org/trac/ticket/2154
1266                         // This automatically put the label inset _after_ a
1267                         // numbered section. It should be possible to extend the mechanism
1268                         // to any kind of LateX environement.
1269                         // The correct way to fix that bug would be at LateX generation.
1270                         // I'll let the code here for reference as it could be used for some
1271                         // other feature like "automatic labelling".
1272                         /*
1273                         Paragraph & par = pars_[cur.pit()];
1274                         if (inset->lyxCode() == LABEL_CODE
1275                                 && !par.layout().counter.empty()) {
1276                                 // Go to the end of the paragraph
1277                                 // Warning: Because of Change-Tracking, the last
1278                                 // position is 'size()' and not 'size()-1':
1279                                 cur.pos() = par.size();
1280                                 // Insert a new paragraph
1281                                 FuncRequest fr(LFUN_PARAGRAPH_BREAK);
1282                                 dispatch(cur, fr);
1283                         }
1284                         */
1285                         if (cur.selection())
1286                                 cutSelection(cur, true, false);
1287                         cur.insert(inset);
1288                         cur.forceBufferUpdate();
1289                         if (inset->editable() && inset->asInsetText())
1290                                 inset->edit(cur, true);
1291                         else
1292                                 cur.posForward();
1293
1294                         // trigger InstantPreview now
1295                         if (inset->lyxCode() == EXTERNAL_CODE) {
1296                                 InsetExternal & ins =
1297                                         static_cast<InsetExternal &>(*inset);
1298                                 ins.updatePreview();
1299                         }
1300                 }
1301
1302                 break;
1303         }
1304
1305         case LFUN_INSET_DISSOLVE: {
1306                 if (dissolveInset(cur)) {
1307                         needsUpdate = true;
1308                         cur.forceBufferUpdate();
1309                 }
1310                 break;
1311         }
1312
1313         case LFUN_GRAPHICS_SET_GROUP: {
1314                 InsetGraphics * ins = graphics::getCurrentGraphicsInset(cur);
1315                 if (!ins)
1316                         break;
1317
1318                 cur.recordUndo();
1319
1320                 string id = to_utf8(cmd.argument());
1321                 string grp = graphics::getGroupParams(bv->buffer(), id);
1322                 InsetGraphicsParams tmp, inspar = ins->getParams();
1323
1324                 if (id.empty())
1325                         inspar.groupId = to_utf8(cmd.argument());
1326                 else {
1327                         InsetGraphics::string2params(grp, bv->buffer(), tmp);
1328                         tmp.filename = inspar.filename;
1329                         inspar = tmp;
1330                 }
1331
1332                 ins->setParams(inspar);
1333                 break;
1334         }
1335
1336         case LFUN_SPACE_INSERT:
1337                 if (cur.paragraph().layout().free_spacing)
1338                         insertChar(cur, ' ');
1339                 else {
1340                         doInsertInset(cur, this, cmd, false, false);
1341                         cur.posForward();
1342                 }
1343                 moveCursor(cur, false);
1344                 break;
1345
1346         case LFUN_SPECIALCHAR_INSERT: {
1347                 string const name = to_utf8(cmd.argument());
1348                 if (name == "hyphenation")
1349                         specialChar(cur, InsetSpecialChar::HYPHENATION);
1350                 else if (name == "allowbreak")
1351                         specialChar(cur, InsetSpecialChar::ALLOWBREAK);
1352                 else if (name == "ligature-break")
1353                         specialChar(cur, InsetSpecialChar::LIGATURE_BREAK);
1354                 else if (name == "slash")
1355                         specialChar(cur, InsetSpecialChar::SLASH);
1356                 else if (name == "nobreakdash")
1357                         specialChar(cur, InsetSpecialChar::NOBREAKDASH);
1358                 else if (name == "dots")
1359                         specialChar(cur, InsetSpecialChar::LDOTS);
1360                 else if (name == "end-of-sentence")
1361                         specialChar(cur, InsetSpecialChar::END_OF_SENTENCE);
1362                 else if (name == "menu-separator")
1363                         specialChar(cur, InsetSpecialChar::MENU_SEPARATOR);
1364                 else if (name == "lyx")
1365                         specialChar(cur, InsetSpecialChar::PHRASE_LYX);
1366                 else if (name == "tex")
1367                         specialChar(cur, InsetSpecialChar::PHRASE_TEX);
1368                 else if (name == "latex")
1369                         specialChar(cur, InsetSpecialChar::PHRASE_LATEX);
1370                 else if (name == "latex2e")
1371                         specialChar(cur, InsetSpecialChar::PHRASE_LATEX2E);
1372                 else if (name.empty())
1373                         lyxerr << "LyX function 'specialchar-insert' needs an argument." << endl;
1374                 else
1375                         lyxerr << "Wrong argument for LyX function 'specialchar-insert'." << endl;
1376                 break;
1377         }
1378
1379         case LFUN_IPAMACRO_INSERT: {
1380                 string const arg = cmd.getArg(0);
1381                 if (arg == "deco") {
1382                         // Open the inset, and move the current selection
1383                         // inside it.
1384                         doInsertInset(cur, this, cmd, true, true);
1385                         cur.posForward();
1386                         // Some insets are numbered, others are shown in the outline pane so
1387                         // let's update the labels and the toc backend.
1388                         cur.forceBufferUpdate();
1389                         break;
1390                 }
1391                 if (arg == "tone-falling")
1392                         ipaChar(cur, InsetIPAChar::TONE_FALLING);
1393                 else if (arg == "tone-rising")
1394                         ipaChar(cur, InsetIPAChar::TONE_RISING);
1395                 else if (arg == "tone-high-rising")
1396                         ipaChar(cur, InsetIPAChar::TONE_HIGH_RISING);
1397                 else if (arg == "tone-low-rising")
1398                         ipaChar(cur, InsetIPAChar::TONE_LOW_RISING);
1399                 else if (arg == "tone-high-rising-falling")
1400                         ipaChar(cur, InsetIPAChar::TONE_HIGH_RISING_FALLING);
1401                 else if (arg.empty())
1402                         lyxerr << "LyX function 'ipamacro-insert' needs an argument." << endl;
1403                 else
1404                         lyxerr << "Wrong argument for LyX function 'ipamacro-insert'." << endl;
1405                 break;
1406         }
1407
1408         case LFUN_WORD_UPCASE:
1409                 changeCase(cur, text_uppercase, cmd.getArg(0) == "partial");
1410                 break;
1411
1412         case LFUN_WORD_LOWCASE:
1413                 changeCase(cur, text_lowercase, cmd.getArg(0) == "partial");
1414                 break;
1415
1416         case LFUN_WORD_CAPITALIZE:
1417                 changeCase(cur, text_capitalization, cmd.getArg(0) == "partial");
1418                 break;
1419
1420         case LFUN_CHARS_TRANSPOSE:
1421                 charsTranspose(cur);
1422                 break;
1423
1424         case LFUN_PASTE: {
1425                 cur.message(_("Paste"));
1426                 LASSERT(cur.selBegin().idx() == cur.selEnd().idx(), break);
1427                 cap::replaceSelection(cur);
1428
1429                 // without argument?
1430                 string const arg = to_utf8(cmd.argument());
1431                 if (arg.empty()) {
1432                         bool tryGraphics = true;
1433                         if (theClipboard().isInternal())
1434                                 pasteFromStack(cur, bv->buffer().errorList("Paste"), 0);
1435                         else if (theClipboard().hasTextContents()) {
1436                                 if (pasteClipboardText(cur, bv->buffer().errorList("Paste"),
1437                                                        true, Clipboard::AnyTextType))
1438                                         tryGraphics = false;
1439                         }
1440                         if (tryGraphics && theClipboard().hasGraphicsContents())
1441                                 pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"));
1442                 } else if (isStrUnsignedInt(arg)) {
1443                         // we have a numerical argument
1444                         pasteFromStack(cur, bv->buffer().errorList("Paste"),
1445                                        convert<unsigned int>(arg));
1446                 } else if (arg == "html" || arg == "latex") {
1447                         Clipboard::TextType type = (arg == "html") ?
1448                                 Clipboard::HtmlTextType : Clipboard::LaTeXTextType;
1449                         pasteClipboardText(cur, bv->buffer().errorList("Paste"), true, type);
1450                 } else {
1451                         Clipboard::GraphicsType type = Clipboard::AnyGraphicsType;
1452                         if (arg == "pdf")
1453                                 type = Clipboard::PdfGraphicsType;
1454                         else if (arg == "png")
1455                                 type = Clipboard::PngGraphicsType;
1456                         else if (arg == "jpeg")
1457                                 type = Clipboard::JpegGraphicsType;
1458                         else if (arg == "linkback")
1459                                 type = Clipboard::LinkBackGraphicsType;
1460                         else if (arg == "emf")
1461                                 type = Clipboard::EmfGraphicsType;
1462                         else if (arg == "wmf")
1463                                 type = Clipboard::WmfGraphicsType;
1464                         else
1465                                 // we also check in getStatus()
1466                                 LYXERR0("Unrecognized graphics type: " << arg);
1467
1468                         pasteClipboardGraphics(cur, bv->buffer().errorList("Paste"), type);
1469                 }
1470
1471                 bv->buffer().errors("Paste");
1472                 cur.clearSelection(); // bug 393
1473                 cur.finishUndo();
1474                 break;
1475         }
1476
1477         case LFUN_CUT:
1478                 cutSelection(cur, true, true);
1479                 cur.message(_("Cut"));
1480                 break;
1481
1482         case LFUN_COPY:
1483                 copySelection(cur);
1484                 cur.message(_("Copy"));
1485                 break;
1486
1487         case LFUN_SERVER_GET_XY:
1488                 cur.message(from_utf8(
1489                         convert<string>(tm->cursorX(cur.top(), cur.boundary()))
1490                         + ' ' + convert<string>(tm->cursorY(cur.top(), cur.boundary()))));
1491                 break;
1492
1493         case LFUN_SERVER_SET_XY: {
1494                 int x = 0;
1495                 int y = 0;
1496                 istringstream is(to_utf8(cmd.argument()));
1497                 is >> x >> y;
1498                 if (!is)
1499                         lyxerr << "SETXY: Could not parse coordinates in '"
1500                                << to_utf8(cmd.argument()) << endl;
1501                 else
1502                         tm->setCursorFromCoordinates(cur, x, y);
1503                 break;
1504         }
1505
1506         case LFUN_SERVER_GET_LAYOUT:
1507                 cur.message(cur.paragraph().layout().name());
1508                 break;
1509
1510         case LFUN_LAYOUT: {
1511                 bool const ignoreautonests = cmd.getArg(1) == "ignoreautonests";
1512                 docstring layout = ignoreautonests ? from_utf8(cmd.getArg(0)) : cmd.argument();
1513                 LYXERR(Debug::INFO, "LFUN_LAYOUT: (arg) " << to_utf8(layout));
1514
1515                 Paragraph const & para = cur.paragraph();
1516                 docstring const old_layout = para.layout().name();
1517                 DocumentClass const & tclass = bv->buffer().params().documentClass();
1518
1519                 if (layout.empty())
1520                         layout = tclass.defaultLayoutName();
1521
1522                 if (owner_->forcePlainLayout())
1523                         // in this case only the empty layout is allowed
1524                         layout = tclass.plainLayoutName();
1525                 else if (para.usePlainLayout()) {
1526                         // in this case, default layout maps to empty layout
1527                         if (layout == tclass.defaultLayoutName())
1528                                 layout = tclass.plainLayoutName();
1529                 } else {
1530                         // otherwise, the empty layout maps to the default
1531                         if (layout == tclass.plainLayoutName())
1532                                 layout = tclass.defaultLayoutName();
1533                 }
1534
1535                 bool hasLayout = tclass.hasLayout(layout);
1536
1537                 // If the entry is obsolete, use the new one instead.
1538                 if (hasLayout) {
1539                         docstring const & obs = tclass[layout].obsoleted_by();
1540                         if (!obs.empty())
1541                                 layout = obs;
1542                 }
1543
1544                 if (!hasLayout) {
1545                         cur.errorMessage(from_utf8(N_("Layout ")) + cmd.argument() +
1546                                 from_utf8(N_(" not known")));
1547                         break;
1548                 }
1549
1550                 bool change_layout = (old_layout != layout);
1551
1552                 if (!change_layout && cur.selection() &&
1553                         cur.selBegin().pit() != cur.selEnd().pit())
1554                 {
1555                         pit_type spit = cur.selBegin().pit();
1556                         pit_type epit = cur.selEnd().pit() + 1;
1557                         while (spit != epit) {
1558                                 if (pars_[spit].layout().name() != old_layout) {
1559                                         change_layout = true;
1560                                         break;
1561                                 }
1562                                 ++spit;
1563                         }
1564                 }
1565
1566                 if (change_layout) {
1567                         setLayout(cur, layout);
1568                         if (cur.pit() > 0 && !ignoreautonests) {
1569                                 set<docstring> const & autonests =
1570                                                 pars_[cur.pit() - 1].layout().autonests();
1571                                 set<docstring> const & autonested =
1572                                                 pars_[cur.pit()].layout().isAutonestedBy();
1573                                 if (autonests.find(layout) != autonests.end()
1574                                                 || autonested.find(old_layout) != autonested.end())
1575                                         lyx::dispatch(FuncRequest(LFUN_DEPTH_INCREMENT));
1576                         }
1577                 }
1578
1579                 Layout::LaTeXArgMap args = tclass[layout].args();
1580                 Layout::LaTeXArgMap::const_iterator lait = args.begin();
1581                 Layout::LaTeXArgMap::const_iterator const laend = args.end();
1582                 for (; lait != laend; ++lait) {
1583                         Layout::latexarg arg = (*lait).second;
1584                         if (arg.autoinsert) {
1585                                 FuncRequest cmd2(LFUN_ARGUMENT_INSERT, (*lait).first);
1586                                 lyx::dispatch(cmd2);
1587                         }
1588                 }
1589
1590                 break;
1591         }
1592
1593         case LFUN_ENVIRONMENT_SPLIT: {
1594                 bool const outer = cmd.argument() == "outer";
1595                 bool const previous = cmd.argument() == "previous";
1596                 bool const before = cmd.argument() == "before";
1597                 bool const normal = cmd.argument().empty();
1598                 Paragraph const & para = cur.paragraph();
1599                 docstring layout;
1600                 if (para.layout().isEnvironment())
1601                         layout = para.layout().name();
1602                 depth_type split_depth = cur.paragraph().params().depth();
1603                 depth_type nextpar_depth = 0;
1604                 if (outer || previous) {
1605                         // check if we have an environment in our scope
1606                         pit_type pit = cur.pit();
1607                         Paragraph cpar = pars_[pit];
1608                         while (true) {
1609                                 if (pit == 0)
1610                                         break;
1611                                 --pit;
1612                                 cpar = pars_[pit];
1613                                 if (layout.empty() && previous
1614                                     && cpar.layout().isEnvironment()
1615                                     && cpar.params().depth() <= split_depth)
1616                                         layout = cpar.layout().name();
1617                                 if (cpar.params().depth() < split_depth
1618                                     && cpar.layout().isEnvironment()) {
1619                                                 if (!previous)
1620                                                         layout = cpar.layout().name();
1621                                                 split_depth = cpar.params().depth();
1622                                 }
1623                                 if (cpar.params().depth() == 0)
1624                                         break;
1625                         }
1626                 }
1627                 if ((outer || normal) && cur.pit() < cur.lastpit()) {
1628                         // save nesting of following paragraph
1629                         Paragraph cpar = pars_[cur.pit() + 1];
1630                         nextpar_depth = cpar.params().depth();
1631                 }
1632                 if (before)
1633                         cur.top().setPitPos(cur.pit(), 0);
1634                 if (before || cur.pos() > 0)
1635                         lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK));
1636                 else if (previous && cur.nextInset() && cur.nextInset()->lyxCode() == SEPARATOR_CODE)
1637                         lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse ignoresep"));
1638                 if (outer) {
1639                         while (cur.paragraph().params().depth() > split_depth)
1640                                 lyx::dispatch(FuncRequest(LFUN_DEPTH_DECREMENT));
1641                 }
1642                 DocumentClass const & tc = bv->buffer().params().documentClass();
1643                 lyx::dispatch(FuncRequest(LFUN_LAYOUT, from_ascii("\"") + tc.plainLayout().name()
1644                                           + from_ascii("\" ignoreautonests")));
1645                 // FIXME: Bibitem mess!
1646                 if (cur.prevInset() && cur.prevInset()->lyxCode() == BIBITEM_CODE)
1647                         lyx::dispatch(FuncRequest(LFUN_CHAR_DELETE_BACKWARD));
1648                 lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "plain"));
1649                 if (before) {
1650                         cur.backwardPos();
1651                         lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse ignoresep"));
1652                         while (cur.paragraph().params().depth() < split_depth)
1653                                 lyx::dispatch(FuncRequest(LFUN_DEPTH_INCREMENT));
1654                 }
1655                 else
1656                         lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse"));
1657                 lyx::dispatch(FuncRequest(LFUN_LAYOUT, layout));
1658                 if ((outer || normal) && nextpar_depth > 0) {
1659                         // restore nesting of following paragraph
1660                         DocIterator scur = cur;
1661                         depth_type const max_depth = cur.paragraph().params().depth() + 1;
1662                         cur.forwardPar();
1663                         while (cur.paragraph().params().depth() < min(nextpar_depth, max_depth))
1664                                 lyx::dispatch(FuncRequest(LFUN_DEPTH_INCREMENT));
1665                         cur.setCursor(scur);
1666                 }
1667
1668                 break;
1669         }
1670
1671         case LFUN_CLIPBOARD_PASTE:
1672                 cap::replaceSelection(cur);
1673                 pasteClipboardText(cur, bv->buffer().errorList("Paste"),
1674                                cmd.argument() == "paragraph");
1675                 bv->buffer().errors("Paste");
1676                 break;
1677
1678         case LFUN_CLIPBOARD_PASTE_SIMPLE:
1679                 cap::replaceSelection(cur);
1680                 pasteSimpleText(cur, cmd.argument() == "paragraph");
1681                 break;
1682
1683         case LFUN_PRIMARY_SELECTION_PASTE:
1684                 cap::replaceSelection(cur);
1685                 pasteString(cur, theSelection().get(),
1686                             cmd.argument() == "paragraph");
1687                 break;
1688
1689         case LFUN_SELECTION_PASTE:
1690                 // Copy the selection buffer to the clipboard stack,
1691                 // because we want it to appear in the "Edit->Paste
1692                 // recent" menu.
1693                 cap::replaceSelection(cur);
1694                 cap::copySelectionToStack();
1695                 cap::pasteSelection(bv->cursor(), bv->buffer().errorList("Paste"));
1696                 bv->buffer().errors("Paste");
1697                 break;
1698
1699         case LFUN_UNICODE_INSERT: {
1700                 if (cmd.argument().empty())
1701                         break;
1702                 int i = 0;
1703                 while (true) {
1704                         docstring const arg = from_utf8(cmd.getArg(i));
1705                         if (arg.empty())
1706                                 break;
1707                         if (!isHex(arg)) {
1708                                 LYXERR0("Not a hexstring: " << arg);
1709                                 ++i;
1710                                 continue;
1711                         }
1712                         char_type c = hexToInt(arg);
1713                         if (c >= 32 && c < 0x10ffff) {
1714                                 LYXERR(Debug::KEY, "Inserting c: " << c);
1715                                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, docstring(1, c)));
1716                         }
1717                         ++i;
1718                 }
1719                 break;
1720         }
1721
1722         case LFUN_QUOTE_INSERT: {
1723                 cap::replaceSelection(cur);
1724                 cur.recordUndo();
1725
1726                 Paragraph const & par = cur.paragraph();
1727                 pos_type pos = cur.pos();
1728                 // Ignore deleted text before cursor
1729                 while (pos > 0 && par.isDeleted(pos - 1))
1730                         --pos;
1731
1732                 bool const inner = (cmd.getArg(0) == "single" || cmd.getArg(0) == "inner");
1733
1734                 // Guess quote side.
1735                 // A space triggers an opening quote. This is passed if the preceding
1736                 // char/inset is a space or at paragraph start.
1737                 char_type c = ' ';
1738                 if (pos > 0 && !par.isSpace(pos - 1)) {
1739                         if (cur.prevInset() && cur.prevInset()->lyxCode() == QUOTE_CODE) {
1740                                 // If an opening double quotation mark precedes, and this
1741                                 // is a single quote, make it opening as well
1742                                 InsetQuotes & ins =
1743                                         static_cast<InsetQuotes &>(*cur.prevInset());
1744                                 string const type = ins.getType();
1745                                 if (!suffixIs(type, "ld") || !inner)
1746                                         c = par.getChar(pos - 1);
1747                         }
1748                         else if (!cur.prevInset()
1749                             || (cur.prevInset() && cur.prevInset()->isChar()))
1750                                 // If a char precedes, pass that and let InsetQuote decide
1751                                 c = par.getChar(pos - 1);
1752                         else {
1753                                 while (pos > 0) {
1754                                         if (par.getInset(pos - 1)
1755                                             && !par.getInset(pos - 1)->isPartOfTextSequence()) {
1756                                                 // skip "invisible" insets
1757                                                 --pos;
1758                                                 continue;
1759                                         }
1760                                         c = par.getChar(pos - 1);
1761                                         break;
1762                                 }
1763                         }
1764                 }
1765                 InsetQuotesParams::QuoteLevel const quote_level = inner
1766                                 ? InsetQuotesParams::SecondaryQuotes : InsetQuotesParams::PrimaryQuotes;
1767                 cur.insert(new InsetQuotes(cur.buffer(), c, quote_level, cmd.getArg(1), cmd.getArg(2)));
1768                 cur.buffer()->updateBuffer();
1769                 cur.posForward();
1770                 break;
1771         }
1772
1773         case LFUN_DATE_INSERT: {
1774                 string const format = cmd.argument().empty()
1775                         ? lyxrc.date_insert_format : to_utf8(cmd.argument());
1776                 string const time = formatted_time(current_time(), format);
1777                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, time));
1778                 break;
1779         }
1780
1781         case LFUN_MOUSE_TRIPLE:
1782                 if (cmd.button() == mouse_button::button1) {
1783                         tm->cursorHome(cur);
1784                         cur.resetAnchor();
1785                         tm->cursorEnd(cur);
1786                         cur.setSelection();
1787                         bv->cursor() = cur;
1788                 }
1789                 break;
1790
1791         case LFUN_MOUSE_DOUBLE:
1792                 if (cmd.button() == mouse_button::button1) {
1793                         selectWord(cur, WHOLE_WORD);
1794                         bv->cursor() = cur;
1795                 }
1796                 break;
1797
1798         // Single-click on work area
1799         case LFUN_MOUSE_PRESS: {
1800                 // We are not marking a selection with the keyboard in any case.
1801                 Cursor & bvcur = cur.bv().cursor();
1802                 bvcur.setMark(false);
1803                 switch (cmd.button()) {
1804                 case mouse_button::button1:
1805                         if (!bvcur.selection())
1806                                 // Set the cursor
1807                                 bvcur.resetAnchor();
1808                         if (!bv->mouseSetCursor(cur, cmd.modifier() == ShiftModifier))
1809                                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1810                         if (bvcur.wordSelection())
1811                                 selectWord(bvcur, WHOLE_WORD);
1812                         break;
1813
1814                 case mouse_button::button2:
1815                         if (lyxrc.mouse_middlebutton_paste) {
1816                                 // Middle mouse pasting.
1817                                 bv->mouseSetCursor(cur);
1818                                 lyx::dispatch(
1819                                         FuncRequest(LFUN_COMMAND_ALTERNATIVES,
1820                                                     "selection-paste ; primary-selection-paste paragraph"));
1821                         }
1822                         cur.noScreenUpdate();
1823                         break;
1824
1825                 case mouse_button::button3: {
1826                         // Don't do anything if we right-click a
1827                         // selection, a context menu will popup.
1828                         if (bvcur.selection() && cur >= bvcur.selectionBegin()
1829                             && cur < bvcur.selectionEnd()) {
1830                                 cur.noScreenUpdate();
1831                                 return;
1832                         }
1833                         if (!bv->mouseSetCursor(cur, false))
1834                                 cur.screenUpdateFlags(Update::FitCursor);
1835                         break;
1836                 }
1837
1838                 default:
1839                         break;
1840                 } // switch (cmd.button())
1841                 break;
1842         }
1843         case LFUN_MOUSE_MOTION: {
1844                 // Mouse motion with right or middle mouse do nothing for now.
1845                 if (cmd.button() != mouse_button::button1) {
1846                         cur.noScreenUpdate();
1847                         return;
1848                 }
1849                 // ignore motions deeper nested than the real anchor
1850                 Cursor & bvcur = cur.bv().cursor();
1851                 if (!bvcur.realAnchor().hasPart(cur)) {
1852                         cur.undispatched();
1853                         break;
1854                 }
1855                 CursorSlice old = bvcur.top();
1856
1857                 int const wh = bv->workHeight();
1858                 int const y = max(0, min(wh - 1, cmd.y()));
1859
1860                 tm->setCursorFromCoordinates(cur, cmd.x(), y);
1861                 cur.setTargetX(cmd.x());
1862                 // Don't allow selecting a separator inset
1863                 if (cur.pos() && cur.paragraph().isEnvSeparator(cur.pos() - 1))
1864                         cur.posBackward();
1865                 if (cmd.y() >= wh)
1866                         lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1867                 else if (cmd.y() < 0)
1868                         lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1869                 // This is to allow jumping over large insets
1870                 if (cur.top() == old) {
1871                         if (cmd.y() >= wh)
1872                                 lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1873                         else if (cmd.y() < 0)
1874                                 lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1875                 }
1876                 // We continue with our existing selection or start a new one, so don't
1877                 // reset the anchor.
1878                 bvcur.setCursor(cur);
1879                 bvcur.selection(true);
1880                 bvcur.setCurrentFont();
1881                 if (cur.top() == old) {
1882                         // We didn't move one iota, so no need to update the screen.
1883                         cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1884                         //cur.noScreenUpdate();
1885                         return;
1886                 }
1887                 break;
1888         }
1889
1890         case LFUN_MOUSE_RELEASE:
1891                 switch (cmd.button()) {
1892                 case mouse_button::button1:
1893                         // Cursor was set at LFUN_MOUSE_PRESS or LFUN_MOUSE_MOTION time.
1894                         // If there is a new selection, update persistent selection;
1895                         // otherwise, single click does not clear persistent selection
1896                         // buffer.
1897                         if (cur.selection()) {
1898                                 // Finish selection. If double click,
1899                                 // cur is moved to the end of word by
1900                                 // selectWord but bvcur is current
1901                                 // mouse position.
1902                                 cur.bv().cursor().setSelection();
1903                                 // We might have removed an empty but drawn selection
1904                                 // (probably a margin)
1905                                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
1906                         } else
1907                                 cur.noScreenUpdate();
1908                         // FIXME: We could try to handle drag and drop of selection here.
1909                         return;
1910
1911                 case mouse_button::button2:
1912                         // Middle mouse pasting is handled at mouse press time,
1913                         // see LFUN_MOUSE_PRESS.
1914                         cur.noScreenUpdate();
1915                         return;
1916
1917                 case mouse_button::button3:
1918                         // Cursor was set at LFUN_MOUSE_PRESS time.
1919                         // FIXME: If there is a selection we could try to handle a special
1920                         // drag & drop context menu.
1921                         cur.noScreenUpdate();
1922                         return;
1923
1924                 case mouse_button::none:
1925                 case mouse_button::button4:
1926                 case mouse_button::button5:
1927                         break;
1928                 } // switch (cmd.button())
1929
1930                 break;
1931
1932         case LFUN_SELF_INSERT: {
1933                 if (cmd.argument().empty())
1934                         break;
1935
1936                 // Automatically delete the currently selected
1937                 // text and replace it with what is being
1938                 // typed in now. Depends on lyxrc settings
1939                 // "auto_region_delete", which defaults to
1940                 // true (on).
1941
1942                 if (lyxrc.auto_region_delete && cur.selection())
1943                         cutSelection(cur, false, false);
1944
1945                 cur.clearSelection();
1946
1947                 docstring::const_iterator cit = cmd.argument().begin();
1948                 docstring::const_iterator const end = cmd.argument().end();
1949                 for (; cit != end; ++cit)
1950                         bv->translateAndInsert(*cit, this, cur);
1951
1952                 cur.resetAnchor();
1953                 moveCursor(cur, false);
1954                 cur.markNewWordPosition();
1955                 bv->bookmarkEditPosition();
1956                 break;
1957         }
1958
1959         case LFUN_HREF_INSERT: {
1960                 docstring content = cmd.argument();
1961                 if (content.empty() && cur.selection())
1962                         content = cur.selectionAsString(false);
1963
1964                 InsetCommandParams p(HYPERLINK_CODE);
1965                 if (!content.empty()){
1966                         // if it looks like a link, we'll put it as target,
1967                         // otherwise as name (bug #8792).
1968
1969                         // We can't do:
1970                         //   regex_match(to_utf8(content), matches, link_re)
1971                         // because smatch stores pointers to the substrings rather
1972                         // than making copies of them. And those pointers become
1973                         // invalid after regex_match returns, since it is then
1974                         // being given a temporary object. (Thanks to Georg for
1975                         // figuring that out.)
1976                         regex const link_re("^([a-z]+):.*");
1977                         smatch matches;
1978                         string const c = to_utf8(lowercase(content));
1979
1980                         if (c.substr(0,7) == "mailto:") {
1981                                 p["target"] = content;
1982                                 p["type"] = from_ascii("mailto:");
1983                         } else if (regex_match(c, matches, link_re)) {
1984                                 p["target"] = content;
1985                                 string protocol = matches.str(1);
1986                                 if (protocol == "file")
1987                                         p["type"] = from_ascii("file:");
1988                         } else
1989                                 p["name"] = content;
1990                 }
1991                 string const data = InsetCommand::params2string(p);
1992
1993                 // we need to have a target. if we already have one, then
1994                 // that gets used at the default for the name, too, which
1995                 // is probably what is wanted.
1996                 if (p["target"].empty()) {
1997                         bv->showDialog("href", data);
1998                 } else {
1999                         FuncRequest fr(LFUN_INSET_INSERT, data);
2000                         dispatch(cur, fr);
2001                 }
2002                 break;
2003         }
2004
2005         case LFUN_LABEL_INSERT: {
2006                 InsetCommandParams p(LABEL_CODE);
2007                 // Try to generate a valid label
2008                 p["name"] = (cmd.argument().empty()) ?
2009                         cur.getPossibleLabel() :
2010                         cmd.argument();
2011                 string const data = InsetCommand::params2string(p);
2012
2013                 if (cmd.argument().empty()) {
2014                         bv->showDialog("label", data);
2015                 } else {
2016                         FuncRequest fr(LFUN_INSET_INSERT, data);
2017                         dispatch(cur, fr);
2018                 }
2019                 break;
2020         }
2021
2022         case LFUN_INFO_INSERT: {
2023                 Inset * inset;
2024                 if (cmd.argument().empty() && cur.selection()) {
2025                         // if command argument is empty use current selection as parameter.
2026                         docstring ds = cur.selectionAsString(false);
2027                         cutSelection(cur, true, false);
2028                         FuncRequest cmd0(cmd, ds);
2029                         inset = createInset(cur.buffer(), cmd0);
2030                 } else {
2031                         inset = createInset(cur.buffer(), cmd);
2032                 }
2033                 if (!inset)
2034                         break;
2035                 cur.recordUndo();
2036                 insertInset(cur, inset);
2037                 cur.forceBufferUpdate();
2038                 cur.posForward();
2039                 break;
2040         }
2041         case LFUN_CAPTION_INSERT:
2042         case LFUN_FOOTNOTE_INSERT:
2043         case LFUN_NOTE_INSERT:
2044         case LFUN_BOX_INSERT:
2045         case LFUN_BRANCH_INSERT:
2046         case LFUN_PHANTOM_INSERT:
2047         case LFUN_ERT_INSERT:
2048         case LFUN_LISTING_INSERT:
2049         case LFUN_MARGINALNOTE_INSERT:
2050         case LFUN_ARGUMENT_INSERT:
2051         case LFUN_INDEX_INSERT:
2052         case LFUN_PREVIEW_INSERT:
2053         case LFUN_SCRIPT_INSERT:
2054         case LFUN_IPA_INSERT:
2055                 // Open the inset, and move the current selection
2056                 // inside it.
2057                 doInsertInset(cur, this, cmd, true, true);
2058                 cur.posForward();
2059                 // Some insets are numbered, others are shown in the outline pane so
2060                 // let's update the labels and the toc backend.
2061                 cur.forceBufferUpdate();
2062                 break;
2063
2064         case LFUN_FLEX_INSERT: {
2065                 // Open the inset, and move the current selection
2066                 // inside it.
2067                 bool const sel = cur.selection();
2068                 doInsertInset(cur, this, cmd, true, true);
2069                 // Insert auto-insert arguments
2070                 bool autoargs = false;
2071                 Layout::LaTeXArgMap args = cur.inset().getLayout().latexargs();
2072                 Layout::LaTeXArgMap::const_iterator lait = args.begin();
2073                 Layout::LaTeXArgMap::const_iterator const laend = args.end();
2074                 for (; lait != laend; ++lait) {
2075                         Layout::latexarg arg = (*lait).second;
2076                         if (arg.autoinsert) {
2077                                 // The cursor might have been invalidated by the replaceSelection.
2078                                 cur.buffer()->changed(true);
2079                                 FuncRequest cmd2(LFUN_ARGUMENT_INSERT, (*lait).first);
2080                                 lyx::dispatch(cmd2);
2081                                 autoargs = true;
2082                         }
2083                 }
2084                 if (!autoargs) {
2085                         if (sel)
2086                                 cur.leaveInset(cur.inset());
2087                         cur.posForward();
2088                 }
2089                 // Some insets are numbered, others are shown in the outline pane so
2090                 // let's update the labels and the toc backend.
2091                 cur.forceBufferUpdate();
2092                 break;
2093         }
2094
2095         case LFUN_TABULAR_INSERT:
2096                 // if there were no arguments, just open the dialog
2097                 if (doInsertInset(cur, this, cmd, false, true))
2098                         cur.posForward();
2099                 else
2100                         bv->showDialog("tabularcreate");
2101
2102                 break;
2103
2104         case LFUN_FLOAT_INSERT:
2105         case LFUN_FLOAT_WIDE_INSERT:
2106         case LFUN_WRAP_INSERT: {
2107                 // will some content be moved into the inset?
2108                 bool const content = cur.selection();
2109                 // does the content consist of multiple paragraphs?
2110                 bool const singlepar = (cur.selBegin().pit() == cur.selEnd().pit());
2111
2112                 doInsertInset(cur, this, cmd, true, true);
2113                 cur.posForward();
2114
2115                 // If some single-par content is moved into the inset,
2116                 // doInsertInset puts the cursor outside the inset.
2117                 // To insert the caption we put it back into the inset.
2118                 // FIXME cleanup doInsertInset to avoid such dances!
2119                 if (content && singlepar)
2120                         cur.backwardPos();
2121
2122                 ParagraphList & pars = cur.text()->paragraphs();
2123
2124                 DocumentClass const & tclass = bv->buffer().params().documentClass();
2125
2126                 // add a separate paragraph for the caption inset
2127                 pars.push_back(Paragraph());
2128                 pars.back().setInsetOwner(&cur.text()->inset());
2129                 pars.back().setPlainOrDefaultLayout(tclass);
2130                 int cap_pit = pars.size() - 1;
2131
2132                 // if an empty inset was created, we create an additional empty
2133                 // paragraph at the bottom so that the user can choose where to put
2134                 // the graphics (or table).
2135                 if (!content) {
2136                         pars.push_back(Paragraph());
2137                         pars.back().setInsetOwner(&cur.text()->inset());
2138                         pars.back().setPlainOrDefaultLayout(tclass);
2139                 }
2140
2141                 // reposition the cursor to the caption
2142                 cur.pit() = cap_pit;
2143                 cur.pos() = 0;
2144                 // FIXME: This Text/Cursor dispatch handling is a mess!
2145                 // We cannot use Cursor::dispatch here it needs access to up to
2146                 // date metrics.
2147                 FuncRequest cmd_caption(LFUN_CAPTION_INSERT);
2148                 doInsertInset(cur, cur.text(), cmd_caption, true, false);
2149                 cur.forceBufferUpdate();
2150                 cur.screenUpdateFlags(Update::Force);
2151                 // FIXME: When leaving the Float (or Wrap) inset we should
2152                 // delete any empty paragraph left above or below the
2153                 // caption.
2154                 break;
2155         }
2156
2157         case LFUN_NOMENCL_INSERT: {
2158                 InsetCommandParams p(NOMENCL_CODE);
2159                 if (cmd.argument().empty())
2160                         p["symbol"] = bv->cursor().innerText()->getStringToIndex(bv->cursor());
2161                 else
2162                         p["symbol"] = cmd.argument();
2163                 string const data = InsetCommand::params2string(p);
2164                 bv->showDialog("nomenclature", data);
2165                 break;
2166         }
2167
2168         case LFUN_INDEX_PRINT: {
2169                 InsetCommandParams p(INDEX_PRINT_CODE);
2170                 if (cmd.argument().empty())
2171                         p["type"] = from_ascii("idx");
2172                 else
2173                         p["type"] = cmd.argument();
2174                 string const data = InsetCommand::params2string(p);
2175                 FuncRequest fr(LFUN_INSET_INSERT, data);
2176                 dispatch(cur, fr);
2177                 break;
2178         }
2179
2180         case LFUN_NOMENCL_PRINT:
2181         case LFUN_NEWPAGE_INSERT:
2182                 // do nothing fancy
2183                 doInsertInset(cur, this, cmd, false, false);
2184                 cur.posForward();
2185                 break;
2186
2187         case LFUN_SEPARATOR_INSERT: {
2188                 doInsertInset(cur, this, cmd, false, false);
2189                 cur.posForward();
2190                 // remove a following space
2191                 Paragraph & par = cur.paragraph();
2192                 if (cur.pos() != cur.lastpos() && par.isLineSeparator(cur.pos()))
2193                     par.eraseChar(cur.pos(), cur.buffer()->params().track_changes);
2194                 break;
2195         }
2196
2197         case LFUN_DEPTH_DECREMENT:
2198                 changeDepth(cur, DEC_DEPTH);
2199                 break;
2200
2201         case LFUN_DEPTH_INCREMENT:
2202                 changeDepth(cur, INC_DEPTH);
2203                 break;
2204
2205         case LFUN_REGEXP_MODE:
2206                 regexpDispatch(cur, cmd);
2207                 break;
2208
2209         case LFUN_MATH_MODE: {
2210                 if (cmd.argument() == "on" || cmd.argument() == "") {
2211                         // don't pass "on" as argument
2212                         // (it would appear literally in the first cell)
2213                         docstring sel = cur.selectionAsString(false);
2214                         InsetMathMacroTemplate * macro = new InsetMathMacroTemplate(cur.buffer());
2215                         // create a macro template if we see "\\newcommand" somewhere, and
2216                         // an ordinary formula otherwise
2217                         if (!sel.empty()
2218                                 && (sel.find(from_ascii("\\newcommand")) != string::npos
2219                                         || sel.find(from_ascii("\\newlyxcommand")) != string::npos
2220                                         || sel.find(from_ascii("\\def")) != string::npos)
2221                                 && macro->fromString(sel)) {
2222                                 cur.recordUndo();
2223                                 replaceSelection(cur);
2224                                 cur.insert(macro);
2225                         } else {
2226                                 // no meaningful macro template was found
2227                                 delete macro;
2228                                 mathDispatch(cur,FuncRequest(LFUN_MATH_MODE));
2229                         }
2230                 } else
2231                         // The argument is meaningful
2232                         // We replace cmd with LFUN_MATH_INSERT because LFUN_MATH_MODE
2233                         // has a different meaning in math mode
2234                         mathDispatch(cur, FuncRequest(LFUN_MATH_INSERT,cmd.argument()));
2235                 break;
2236         }
2237
2238         case LFUN_MATH_MACRO:
2239                 if (cmd.argument().empty())
2240                         cur.errorMessage(from_utf8(N_("Missing argument")));
2241                 else {
2242                         cur.recordUndo();
2243                         string s = to_utf8(cmd.argument());
2244                         string const s1 = token(s, ' ', 1);
2245                         int const nargs = s1.empty() ? 0 : convert<int>(s1);
2246                         string const s2 = token(s, ' ', 2);
2247                         MacroType type = MacroTypeNewcommand;
2248                         if (s2 == "def")
2249                                 type = MacroTypeDef;
2250                         InsetMathMacroTemplate * inset = new InsetMathMacroTemplate(cur.buffer(),
2251                                 from_utf8(token(s, ' ', 0)), nargs, false, type);
2252                         inset->setBuffer(bv->buffer());
2253                         insertInset(cur, inset);
2254
2255                         // enter macro inset and select the name
2256                         cur.push(*inset);
2257                         cur.top().pos() = cur.top().lastpos();
2258                         cur.resetAnchor();
2259                         cur.selection(true);
2260                         cur.top().pos() = 0;
2261                 }
2262                 break;
2263
2264         case LFUN_MATH_DISPLAY:
2265         case LFUN_MATH_SUBSCRIPT:
2266         case LFUN_MATH_SUPERSCRIPT:
2267         case LFUN_MATH_INSERT:
2268         case LFUN_MATH_AMS_MATRIX:
2269         case LFUN_MATH_MATRIX:
2270         case LFUN_MATH_DELIM:
2271         case LFUN_MATH_BIGDELIM:
2272                 mathDispatch(cur, cmd);
2273                 break;
2274
2275         case LFUN_FONT_EMPH: {
2276                 Font font(ignore_font, ignore_language);
2277                 font.fontInfo().setEmph(FONT_TOGGLE);
2278                 toggleAndShow(cur, this, font);
2279                 break;
2280         }
2281
2282         case LFUN_FONT_ITAL: {
2283                 Font font(ignore_font, ignore_language);
2284                 font.fontInfo().setShape(ITALIC_SHAPE);
2285                 toggleAndShow(cur, this, font);
2286                 break;
2287         }
2288
2289         case LFUN_FONT_BOLD:
2290         case LFUN_FONT_BOLDSYMBOL: {
2291                 Font font(ignore_font, ignore_language);
2292                 font.fontInfo().setSeries(BOLD_SERIES);
2293                 toggleAndShow(cur, this, font);
2294                 break;
2295         }
2296
2297         case LFUN_FONT_NOUN: {
2298                 Font font(ignore_font, ignore_language);
2299                 font.fontInfo().setNoun(FONT_TOGGLE);
2300                 toggleAndShow(cur, this, font);
2301                 break;
2302         }
2303
2304         case LFUN_FONT_TYPEWRITER: {
2305                 Font font(ignore_font, ignore_language);
2306                 font.fontInfo().setFamily(TYPEWRITER_FAMILY); // no good
2307                 toggleAndShow(cur, this, font);
2308                 break;
2309         }
2310
2311         case LFUN_FONT_SANS: {
2312                 Font font(ignore_font, ignore_language);
2313                 font.fontInfo().setFamily(SANS_FAMILY);
2314                 toggleAndShow(cur, this, font);
2315                 break;
2316         }
2317
2318         case LFUN_FONT_ROMAN: {
2319                 Font font(ignore_font, ignore_language);
2320                 font.fontInfo().setFamily(ROMAN_FAMILY);
2321                 toggleAndShow(cur, this, font);
2322                 break;
2323         }
2324
2325         case LFUN_FONT_DEFAULT: {
2326                 Font font(inherit_font, ignore_language);
2327                 toggleAndShow(cur, this, font);
2328                 break;
2329         }
2330
2331         case LFUN_FONT_STRIKEOUT: {
2332                 Font font(ignore_font, ignore_language);
2333                 font.fontInfo().setStrikeout(FONT_TOGGLE);
2334                 toggleAndShow(cur, this, font);
2335                 break;
2336         }
2337
2338         case LFUN_FONT_CROSSOUT: {
2339                 Font font(ignore_font, ignore_language);
2340                 font.fontInfo().setXout(FONT_TOGGLE);
2341                 toggleAndShow(cur, this, font);
2342                 break;
2343         }
2344
2345         case LFUN_FONT_UNDERUNDERLINE: {
2346                 Font font(ignore_font, ignore_language);
2347                 font.fontInfo().setUuline(FONT_TOGGLE);
2348                 toggleAndShow(cur, this, font);
2349                 break;
2350         }
2351
2352         case LFUN_FONT_UNDERWAVE: {
2353                 Font font(ignore_font, ignore_language);
2354                 font.fontInfo().setUwave(FONT_TOGGLE);
2355                 toggleAndShow(cur, this, font);
2356                 break;
2357         }
2358
2359         case LFUN_FONT_UNDERLINE: {
2360                 Font font(ignore_font, ignore_language);
2361                 font.fontInfo().setUnderbar(FONT_TOGGLE);
2362                 toggleAndShow(cur, this, font);
2363                 break;
2364         }
2365
2366         case LFUN_FONT_SIZE: {
2367                 Font font(ignore_font, ignore_language);
2368                 setLyXSize(to_utf8(cmd.argument()), font.fontInfo());
2369                 toggleAndShow(cur, this, font);
2370                 break;
2371         }
2372
2373         case LFUN_LANGUAGE: {
2374                 string const lang_arg = cmd.getArg(0);
2375                 bool const reset = (lang_arg.empty() || lang_arg == "reset");
2376                 Language const * lang =
2377                         reset ? reset_language
2378                               : languages.getLanguage(lang_arg);
2379                 // we allow reset_language, which is 0, but only if it
2380                 // was requested via empty or "reset" arg.
2381                 if (!lang && !reset)
2382                         break;
2383                 bool const toggle = (cmd.getArg(1) != "set");
2384                 selectWordWhenUnderCursor(cur, WHOLE_WORD_STRICT);
2385                 Font font(ignore_font, lang);
2386                 toggleAndShow(cur, this, font, toggle);
2387                 break;
2388         }
2389
2390         case LFUN_TEXTSTYLE_APPLY:
2391                 toggleAndShow(cur, this, freefont, toggleall);
2392                 cur.message(_("Character set"));
2393                 break;
2394
2395         // Set the freefont using the contents of \param data dispatched from
2396         // the frontends and apply it at the current cursor location.
2397         case LFUN_TEXTSTYLE_UPDATE: {
2398                 Font font;
2399                 bool toggle;
2400                 if (font.fromString(to_utf8(cmd.argument()), toggle)) {
2401                         freefont = font;
2402                         toggleall = toggle;
2403                         toggleAndShow(cur, this, freefont, toggleall);
2404                         cur.message(_("Character set"));
2405                 } else {
2406                         lyxerr << "Argument not ok";
2407                 }
2408                 break;
2409         }
2410
2411         case LFUN_FINISHED_LEFT:
2412                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_LEFT:\n" << cur);
2413                 // We're leaving an inset, going left. If the inset is LTR, we're
2414                 // leaving from the front, so we should not move (remain at --- but
2415                 // not in --- the inset). If the inset is RTL, move left, without
2416                 // entering the inset itself; i.e., move to after the inset.
2417                 if (cur.paragraph().getFontSettings(
2418                                 cur.bv().buffer().params(), cur.pos()).isRightToLeft())
2419                         cursorVisLeft(cur, true);
2420                 break;
2421
2422         case LFUN_FINISHED_RIGHT:
2423                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_RIGHT:\n" << cur);
2424                 // We're leaving an inset, going right. If the inset is RTL, we're
2425                 // leaving from the front, so we should not move (remain at --- but
2426                 // not in --- the inset). If the inset is LTR, move right, without
2427                 // entering the inset itself; i.e., move to after the inset.
2428                 if (!cur.paragraph().getFontSettings(
2429                                 cur.bv().buffer().params(), cur.pos()).isRightToLeft())
2430                         cursorVisRight(cur, true);
2431                 break;
2432
2433         case LFUN_FINISHED_BACKWARD:
2434                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_BACKWARD:\n" << cur);
2435                 cur.setCurrentFont();
2436                 break;
2437
2438         case LFUN_FINISHED_FORWARD:
2439                 LYXERR(Debug::DEBUG, "handle LFUN_FINISHED_FORWARD:\n" << cur);
2440                 ++cur.pos();
2441                 cur.setCurrentFont();
2442                 break;
2443
2444         case LFUN_LAYOUT_PARAGRAPH: {
2445                 string data;
2446                 params2string(cur.paragraph(), data);
2447                 data = "show\n" + data;
2448                 bv->showDialog("paragraph", data);
2449                 break;
2450         }
2451
2452         case LFUN_PARAGRAPH_UPDATE: {
2453                 string data;
2454                 params2string(cur.paragraph(), data);
2455
2456                 // Will the paragraph accept changes from the dialog?
2457                 bool const accept =
2458                         cur.inset().allowParagraphCustomization(cur.idx());
2459
2460                 data = "update " + convert<string>(accept) + '\n' + data;
2461                 bv->updateDialog("paragraph", data);
2462                 break;
2463         }
2464
2465         case LFUN_ACCENT_UMLAUT:
2466         case LFUN_ACCENT_CIRCUMFLEX:
2467         case LFUN_ACCENT_GRAVE:
2468         case LFUN_ACCENT_ACUTE:
2469         case LFUN_ACCENT_TILDE:
2470         case LFUN_ACCENT_PERISPOMENI:
2471         case LFUN_ACCENT_CEDILLA:
2472         case LFUN_ACCENT_MACRON:
2473         case LFUN_ACCENT_DOT:
2474         case LFUN_ACCENT_UNDERDOT:
2475         case LFUN_ACCENT_UNDERBAR:
2476         case LFUN_ACCENT_CARON:
2477         case LFUN_ACCENT_BREVE:
2478         case LFUN_ACCENT_TIE:
2479         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
2480         case LFUN_ACCENT_CIRCLE:
2481         case LFUN_ACCENT_OGONEK:
2482                 theApp()->handleKeyFunc(cmd.action());
2483                 if (!cmd.argument().empty())
2484                         // FIXME: Are all these characters encoded in one byte in utf8?
2485                         bv->translateAndInsert(cmd.argument()[0], this, cur);
2486                 cur.screenUpdateFlags(Update::FitCursor);
2487                 break;
2488
2489         case LFUN_FLOAT_LIST_INSERT: {
2490                 DocumentClass const & tclass = bv->buffer().params().documentClass();
2491                 if (tclass.floats().typeExist(to_utf8(cmd.argument()))) {
2492                         cur.recordUndo();
2493                         if (cur.selection())
2494                                 cutSelection(cur, true, false);
2495                         breakParagraph(cur);
2496
2497                         if (cur.lastpos() != 0) {
2498                                 cursorBackward(cur);
2499                                 breakParagraph(cur);
2500                         }
2501
2502                         docstring const laystr = cur.inset().usePlainLayout() ?
2503                                 tclass.plainLayoutName() :
2504                                 tclass.defaultLayoutName();
2505                         setLayout(cur, laystr);
2506                         ParagraphParameters p;
2507                         // FIXME If this call were replaced with one to clearParagraphParams(),
2508                         // then we could get rid of this method altogether.
2509                         setParagraphs(cur, p);
2510                         // FIXME This should be simplified when InsetFloatList takes a
2511                         // Buffer in its constructor.
2512                         InsetFloatList * ifl = new InsetFloatList(cur.buffer(), to_utf8(cmd.argument()));
2513                         ifl->setBuffer(bv->buffer());
2514                         insertInset(cur, ifl);
2515                         cur.posForward();
2516                 } else {
2517                         lyxerr << "Non-existent float type: "
2518                                << to_utf8(cmd.argument()) << endl;
2519                 }
2520                 break;
2521         }
2522
2523         case LFUN_CHANGE_ACCEPT: {
2524                 acceptOrRejectChanges(cur, ACCEPT);
2525                 break;
2526         }
2527
2528         case LFUN_CHANGE_REJECT: {
2529                 acceptOrRejectChanges(cur, REJECT);
2530                 break;
2531         }
2532
2533         case LFUN_THESAURUS_ENTRY: {
2534                 Language const * language = cur.getFont().language();
2535                 docstring arg = cmd.argument();
2536                 if (arg.empty()) {
2537                         arg = cur.selectionAsString(false);
2538                         // FIXME
2539                         if (arg.size() > 100 || arg.empty()) {
2540                                 // Get word or selection
2541                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2542                                 arg = cur.selectionAsString(false);
2543                                 arg += " lang=" + from_ascii(language->lang());
2544                         }
2545                 } else {
2546                         string lang = cmd.getArg(1);
2547                         // This duplicates the code in GuiThesaurus::initialiseParams
2548                         if (prefixIs(lang, "lang=")) {
2549                                 language = languages.getLanguage(lang.substr(5));
2550                                 if (!language)
2551                                         language = cur.getFont().language();
2552                         }
2553                 }
2554                 string lang = language->code();
2555                 if (lyxrc.thesaurusdir_path.empty() && !thesaurus.thesaurusInstalled(from_ascii(lang))) {
2556                         LYXERR(Debug::ACTION, "Command " << cmd << ". Thesaurus not found for language " << lang);
2557                         frontend::Alert::warning(_("Path to thesaurus directory not set!"),
2558                                         _("The path to the thesaurus directory has not been specified.\n"
2559                                           "The thesaurus is not functional.\n"
2560                                           "Please refer to sec. 6.15.1 of the User's Guide for setup\n"
2561                                           "instructions."));
2562                 }
2563                 bv->showDialog("thesaurus", to_utf8(arg));
2564                 break;
2565         }
2566
2567         case LFUN_SPELLING_ADD: {
2568                 Language const * language = getLanguage(cur, cmd.getArg(1));
2569                 docstring word = from_utf8(cmd.getArg(0));
2570                 if (word.empty()) {
2571                         word = cur.selectionAsString(false);
2572                         // FIXME
2573                         if (word.size() > 100 || word.empty()) {
2574                                 // Get word or selection
2575                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2576                                 word = cur.selectionAsString(false);
2577                         }
2578                 }
2579                 WordLangTuple wl(word, language);
2580                 theSpellChecker()->insert(wl);
2581                 break;
2582         }
2583
2584         case LFUN_SPELLING_IGNORE: {
2585                 Language const * language = getLanguage(cur, cmd.getArg(1));
2586                 docstring word = from_utf8(cmd.getArg(0));
2587                 if (word.empty()) {
2588                         word = cur.selectionAsString(false);
2589                         // FIXME
2590                         if (word.size() > 100 || word.empty()) {
2591                                 // Get word or selection
2592                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2593                                 word = cur.selectionAsString(false);
2594                         }
2595                 }
2596                 WordLangTuple wl(word, language);
2597                 theSpellChecker()->accept(wl);
2598                 break;
2599         }
2600
2601         case LFUN_SPELLING_REMOVE: {
2602                 Language const * language = getLanguage(cur, cmd.getArg(1));
2603                 docstring word = from_utf8(cmd.getArg(0));
2604                 if (word.empty()) {
2605                         word = cur.selectionAsString(false);
2606                         // FIXME
2607                         if (word.size() > 100 || word.empty()) {
2608                                 // Get word or selection
2609                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
2610                                 word = cur.selectionAsString(false);
2611                         }
2612                 }
2613                 WordLangTuple wl(word, language);
2614                 theSpellChecker()->remove(wl);
2615                 break;
2616         }
2617
2618         case LFUN_PARAGRAPH_PARAMS_APPLY: {
2619                 // Given data, an encoding of the ParagraphParameters
2620                 // generated in the Paragraph dialog, this function sets
2621                 // the current paragraph, or currently selected paragraphs,
2622                 // appropriately.
2623                 // NOTE: This function overrides all existing settings.
2624                 setParagraphs(cur, cmd.argument());
2625                 cur.message(_("Paragraph layout set"));
2626                 break;
2627         }
2628
2629         case LFUN_PARAGRAPH_PARAMS: {
2630                 // Given data, an encoding of the ParagraphParameters as we'd
2631                 // find them in a LyX file, this function modifies the current paragraph,
2632                 // or currently selected paragraphs.
2633                 // NOTE: This function only modifies, and does not override, existing
2634                 // settings.
2635                 setParagraphs(cur, cmd.argument(), true);
2636                 cur.message(_("Paragraph layout set"));
2637                 break;
2638         }
2639
2640         case LFUN_ESCAPE:
2641                 if (cur.selection()) {
2642                         cur.selection(false);
2643                 } else {
2644                         cur.undispatched();
2645                         // This used to be LFUN_FINISHED_RIGHT, I think FORWARD is more
2646                         // correct, but I'm not 100% sure -- dov, 071019
2647                         cmd = FuncRequest(LFUN_FINISHED_FORWARD);
2648                 }
2649                 break;
2650
2651         case LFUN_OUTLINE_UP:
2652                 outline(OutlineUp, cur, this);
2653                 setCursor(cur, cur.pit(), 0);
2654                 cur.forceBufferUpdate();
2655                 needsUpdate = true;
2656                 break;
2657
2658         case LFUN_OUTLINE_DOWN:
2659                 outline(OutlineDown, cur, this);
2660                 setCursor(cur, cur.pit(), 0);
2661                 cur.forceBufferUpdate();
2662                 needsUpdate = true;
2663                 break;
2664
2665         case LFUN_OUTLINE_IN:
2666                 outline(OutlineIn, cur, this);
2667                 cur.forceBufferUpdate();
2668                 needsUpdate = true;
2669                 break;
2670
2671         case LFUN_OUTLINE_OUT:
2672                 outline(OutlineOut, cur, this);
2673                 cur.forceBufferUpdate();
2674                 needsUpdate = true;
2675                 break;
2676
2677         case LFUN_SERVER_GET_STATISTICS:
2678                 {
2679                         DocIterator from, to;
2680                         if (cur.selection()) {
2681                                 from = cur.selectionBegin();
2682                                 to = cur.selectionEnd();
2683                         } else {
2684                                 from = doc_iterator_begin(cur.buffer());
2685                                 to = doc_iterator_end(cur.buffer());
2686                         }
2687
2688                         cur.buffer()->updateStatistics(from, to);
2689                         string const arg0 = cmd.getArg(0);
2690                         if (arg0 == "words") {
2691                                 cur.message(convert<docstring>(cur.buffer()->wordCount()));
2692                         } else if (arg0 == "chars") {
2693                                 cur.message(convert<docstring>(cur.buffer()->charCount(false)));
2694                         } else if (arg0 == "chars-space") {
2695                                 cur.message(convert<docstring>(cur.buffer()->charCount(true)));
2696                         } else {
2697                                 cur.message(convert<docstring>(cur.buffer()->wordCount()) + " "
2698                                 + convert<docstring>(cur.buffer()->charCount(false)) + " "
2699                                 + convert<docstring>(cur.buffer()->charCount(true)));
2700                         }
2701                 }
2702                 break;
2703
2704         default:
2705                 LYXERR(Debug::ACTION, "Command " << cmd << " not DISPATCHED by Text");
2706                 cur.undispatched();
2707                 break;
2708         }
2709
2710         needsUpdate |= (cur.pos() != cur.lastpos()) && cur.selection();
2711
2712         if (lyxrc.spellcheck_continuously && !needsUpdate) {
2713                 // Check for misspelled text
2714                 // The redraw is useful because of the painting of
2715                 // misspelled markers depends on the cursor position.
2716                 // Trigger a redraw for cursor moves inside misspelled text.
2717                 if (!cur.inTexted()) {
2718                         // move from regular text to math
2719                         needsUpdate = last_misspelled;
2720                 } else if (oldTopSlice != cur.top() || oldBoundary != cur.boundary()) {
2721                         // move inside regular text
2722                         needsUpdate = last_misspelled
2723                                 || cur.paragraph().isMisspelled(cur.pos(), true);
2724                 }
2725         }
2726
2727         // FIXME: The cursor flag is reset two lines below
2728         // so we need to check here if some of the LFUN did touch that.
2729         // for now only Text::erase() and Text::backspace() do that.
2730         // The plan is to verify all the LFUNs and then to remove this
2731         // singleParUpdate boolean altogether.
2732         if (cur.result().screenUpdate() & Update::Force) {
2733                 singleParUpdate = false;
2734                 needsUpdate = true;
2735         }
2736
2737         // FIXME: the following code should go in favor of fine grained
2738         // update flag treatment.
2739         if (singleParUpdate) {
2740                 // Inserting characters does not change par height in general. So, try
2741                 // to update _only_ this paragraph. BufferView will detect if a full
2742                 // metrics update is needed anyway.
2743                 cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
2744                 return;
2745         }
2746         if (!needsUpdate
2747             && &oldTopSlice.inset() == &cur.inset()
2748             && oldTopSlice.idx() == cur.idx()
2749             && !oldSelection // oldSelection is a backup of cur.selection() at the beginning of the function.
2750             && !cur.selection())
2751                 // FIXME: it would be better if we could just do this
2752                 //
2753                 //if (cur.result().update() != Update::FitCursor)
2754                 //      cur.noScreenUpdate();
2755                 //
2756                 // But some LFUNs do not set Update::FitCursor when needed, so we
2757                 // do it for all. This is not very harmfull as FitCursor will provoke
2758                 // a full redraw only if needed but still, a proper review of all LFUN
2759                 // should be done and this needsUpdate boolean can then be removed.
2760                 cur.screenUpdateFlags(Update::FitCursor);
2761         else
2762                 cur.screenUpdateFlags(Update::Force | Update::FitCursor);
2763 }
2764
2765
2766 bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
2767                         FuncStatus & flag) const
2768 {
2769         LBUFERR(this == cur.text());
2770
2771         FontInfo const & fontinfo = cur.real_current_font.fontInfo();
2772         bool enable = true;
2773         bool allow_in_passthru = false;
2774         InsetCode code = NO_CODE;
2775
2776         switch (cmd.action()) {
2777
2778         case LFUN_DEPTH_DECREMENT:
2779                 enable = changeDepthAllowed(cur, DEC_DEPTH);
2780                 break;
2781
2782         case LFUN_DEPTH_INCREMENT:
2783                 enable = changeDepthAllowed(cur, INC_DEPTH);
2784                 break;
2785
2786         case LFUN_APPENDIX:
2787                 // FIXME We really should not allow this to be put, e.g.,
2788                 // in a footnote, or in ERT. But it would make sense in a
2789                 // branch, so I'm not sure what to do.
2790                 flag.setOnOff(cur.paragraph().params().startOfAppendix());
2791                 break;
2792
2793         case LFUN_DIALOG_SHOW_NEW_INSET:
2794                 if (cmd.argument() == "bibitem")
2795                         code = BIBITEM_CODE;
2796                 else if (cmd.argument() == "bibtex") {
2797                         code = BIBTEX_CODE;
2798                         // not allowed in description items
2799                         enable = !inDescriptionItem(cur);
2800                 }
2801                 else if (cmd.argument() == "box")
2802                         code = BOX_CODE;
2803                 else if (cmd.argument() == "branch")
2804                         code = BRANCH_CODE;
2805                 else if (cmd.argument() == "citation")
2806                         code = CITE_CODE;
2807                 else if (cmd.argument() == "ert")
2808                         code = ERT_CODE;
2809                 else if (cmd.argument() == "external")
2810                         code = EXTERNAL_CODE;
2811                 else if (cmd.argument() == "float")
2812                         code = FLOAT_CODE;
2813                 else if (cmd.argument() == "graphics")
2814                         code = GRAPHICS_CODE;
2815                 else if (cmd.argument() == "href")
2816                         code = HYPERLINK_CODE;
2817                 else if (cmd.argument() == "include")
2818                         code = INCLUDE_CODE;
2819                 else if (cmd.argument() == "index")
2820                         code = INDEX_CODE;
2821                 else if (cmd.argument() == "index_print")
2822                         code = INDEX_PRINT_CODE;
2823                 else if (cmd.argument() == "listings")
2824                         code = LISTINGS_CODE;
2825                 else if (cmd.argument() == "mathspace")
2826                         code = MATH_HULL_CODE;
2827                 else if (cmd.argument() == "nomenclature")
2828                         code = NOMENCL_CODE;
2829                 else if (cmd.argument() == "nomencl_print")
2830                         code = NOMENCL_PRINT_CODE;
2831                 else if (cmd.argument() == "label")
2832                         code = LABEL_CODE;
2833                 else if (cmd.argument() == "line")
2834                         code = LINE_CODE;
2835                 else if (cmd.argument() == "note")
2836                         code = NOTE_CODE;
2837                 else if (cmd.argument() == "phantom")
2838                         code = PHANTOM_CODE;
2839                 else if (cmd.argument() == "ref")
2840                         code = REF_CODE;
2841                 else if (cmd.argument() == "space")
2842                         code = SPACE_CODE;
2843                 else if (cmd.argument() == "toc")
2844                         code = TOC_CODE;
2845                 else if (cmd.argument() == "vspace")
2846                         code = VSPACE_CODE;
2847                 else if (cmd.argument() == "wrap")
2848                         code = WRAP_CODE;
2849                 break;
2850
2851         case LFUN_ERT_INSERT:
2852                 code = ERT_CODE;
2853                 break;
2854         case LFUN_LISTING_INSERT:
2855                 code = LISTINGS_CODE;
2856                 // not allowed in description items
2857                 enable = !inDescriptionItem(cur);
2858                 break;
2859         case LFUN_FOOTNOTE_INSERT:
2860                 code = FOOT_CODE;
2861                 break;
2862         case LFUN_TABULAR_INSERT:
2863                 code = TABULAR_CODE;
2864                 break;
2865         case LFUN_MARGINALNOTE_INSERT:
2866                 code = MARGIN_CODE;
2867                 break;
2868         case LFUN_FLOAT_INSERT:
2869         case LFUN_FLOAT_WIDE_INSERT:
2870                 // FIXME: If there is a selection, we should check whether there
2871                 // are floats in the selection, but this has performance issues, see
2872                 // LFUN_CHANGE_ACCEPT/REJECT.
2873                 code = FLOAT_CODE;
2874                 if (inDescriptionItem(cur))
2875                         // not allowed in description items
2876                         enable = false;
2877                 else {
2878                         InsetCode const inset_code = cur.inset().lyxCode();
2879
2880                         // algorithm floats cannot be put in another float
2881                         if (to_utf8(cmd.argument()) == "algorithm") {
2882                                 enable = inset_code != WRAP_CODE && inset_code != FLOAT_CODE;
2883                                 break;
2884                         }
2885
2886                         // for figures and tables: only allow in another
2887                         // float or wrap if it is of the same type and
2888                         // not a subfloat already
2889                         if(cur.inset().lyxCode() == code) {
2890                                 InsetFloat const & ins =
2891                                         static_cast<InsetFloat const &>(cur.inset());
2892                                 enable = ins.params().type == to_utf8(cmd.argument())
2893                                         && !ins.params().subfloat;
2894                         } else if(cur.inset().lyxCode() == WRAP_CODE) {
2895                                 InsetWrap const & ins =
2896                                         static_cast<InsetWrap const &>(cur.inset());
2897                                 enable = ins.params().type == to_utf8(cmd.argument());
2898                         }
2899                 }
2900                 break;
2901         case LFUN_WRAP_INSERT:
2902                 code = WRAP_CODE;
2903                 // not allowed in description items
2904                 enable = !inDescriptionItem(cur);
2905                 break;
2906         case LFUN_FLOAT_LIST_INSERT: {
2907                 code = FLOAT_LIST_CODE;
2908                 // not allowed in description items
2909                 enable = !inDescriptionItem(cur);
2910                 if (enable) {
2911                         FloatList const & floats = cur.buffer()->params().documentClass().floats();
2912                         FloatList::const_iterator cit = floats[to_ascii(cmd.argument())];
2913                         // make sure we know about such floats
2914                         if (cit == floats.end() ||
2915                                         // and that we know how to generate a list of them
2916                             (!cit->second.usesFloatPkg() && cit->second.listCommand().empty())) {
2917                                 flag.setUnknown(true);
2918                                 // probably not necessary, but...
2919                                 enable = false;
2920                         }
2921                 }
2922                 break;
2923         }
2924         case LFUN_CAPTION_INSERT: {
2925                 code = CAPTION_CODE;
2926                 string arg = cmd.getArg(0);
2927                 bool varia = arg != "Unnumbered"
2928                         && cur.inset().allowsCaptionVariation(arg);
2929                 // not allowed in description items,
2930                 // and in specific insets
2931                 enable = !inDescriptionItem(cur)
2932                         && (varia || arg.empty() || arg == "Standard");
2933                 break;
2934         }
2935         case LFUN_NOTE_INSERT:
2936                 code = NOTE_CODE;
2937                 // in commands (sections etc.) and description items,
2938                 // only Notes are allowed
2939                 enable = (cmd.argument().empty() || cmd.getArg(0) == "Note" ||
2940                           (!cur.paragraph().layout().isCommand()
2941                            && !inDescriptionItem(cur)));
2942                 break;
2943         case LFUN_FLEX_INSERT: {
2944                 code = FLEX_CODE;
2945                 string s = cmd.getArg(0);
2946                 InsetLayout il =
2947                         cur.buffer()->params().documentClass().insetLayout(from_utf8(s));
2948                 if (il.lyxtype() != InsetLayout::CHARSTYLE &&
2949                     il.lyxtype() != InsetLayout::CUSTOM &&
2950                     il.lyxtype() != InsetLayout::ELEMENT &&
2951                     il.lyxtype ()!= InsetLayout::STANDARD)
2952                         enable = false;
2953                 break;
2954                 }
2955         case LFUN_BOX_INSERT:
2956                 code = BOX_CODE;
2957                 break;
2958         case LFUN_BRANCH_INSERT:
2959                 code = BRANCH_CODE;
2960                 if (cur.buffer()->masterBuffer()->params().branchlist().empty()
2961                     && cur.buffer()->params().branchlist().empty())
2962                         enable = false;
2963                 break;
2964         case LFUN_IPA_INSERT:
2965                 code = IPA_CODE;
2966                 break;
2967         case LFUN_PHANTOM_INSERT:
2968                 code = PHANTOM_CODE;
2969                 break;
2970         case LFUN_LABEL_INSERT:
2971                 code = LABEL_CODE;
2972                 break;
2973         case LFUN_INFO_INSERT:
2974                 code = INFO_CODE;
2975                 break;
2976         case LFUN_ARGUMENT_INSERT: {
2977                 code = ARG_CODE;
2978                 allow_in_passthru = true;
2979                 string const arg = cmd.getArg(0);
2980                 if (arg.empty()) {
2981                         enable = false;
2982                         break;
2983                 }
2984                 Layout const & lay = cur.paragraph().layout();
2985                 Layout::LaTeXArgMap args = lay.args();
2986                 Layout::LaTeXArgMap::const_iterator const lait =
2987                                 args.find(arg);
2988                 if (lait != args.end()) {
2989                         enable = true;
2990                         pit_type pit = cur.pit();
2991                         pit_type lastpit = cur.pit();
2992                         if (lay.isEnvironment() && !prefixIs(arg, "item:")) {
2993                                 // In a sequence of "merged" environment layouts, we only allow
2994                                 // non-item arguments once.
2995                                 lastpit = cur.lastpit();
2996                                 // get the first paragraph in sequence with this layout
2997                                 depth_type const current_depth = cur.paragraph().params().depth();
2998                                 while (true) {
2999                                         if (pit == 0)
3000                                                 break;
3001                                         Paragraph cpar = pars_[pit - 1];
3002                                         if (cpar.layout() == lay && cpar.params().depth() == current_depth)
3003                                                 --pit;
3004                                         else
3005                                                 break;
3006                                 }
3007                         }
3008                         for (; pit <= lastpit; ++pit) {
3009                                 if (pars_[pit].layout() != lay)
3010                                         break;
3011                                 for (auto const & table : pars_[pit].insetList())
3012                                         if (InsetArgument const * ins = table.inset->asInsetArgument())
3013                                                 if (ins->name() == arg) {
3014                                                         // we have this already
3015                                                         enable = false;
3016                                                         break;
3017                                                 }
3018                         }
3019                 } else
3020                         enable = false;
3021                 break;
3022         }
3023         case LFUN_INDEX_INSERT:
3024                 code = INDEX_CODE;
3025                 break;
3026         case LFUN_INDEX_PRINT:
3027                 code = INDEX_PRINT_CODE;
3028                 // not allowed in description items
3029                 enable = !inDescriptionItem(cur);
3030                 break;
3031         case LFUN_NOMENCL_INSERT:
3032                 if (cur.selIsMultiCell() || cur.selIsMultiLine()) {
3033                         enable = false;
3034                         break;
3035                 }
3036                 code = NOMENCL_CODE;
3037                 break;
3038         case LFUN_NOMENCL_PRINT:
3039                 code = NOMENCL_PRINT_CODE;
3040                 // not allowed in description items
3041                 enable = !inDescriptionItem(cur);
3042                 break;
3043         case LFUN_HREF_INSERT:
3044                 if (cur.selIsMultiCell() || cur.selIsMultiLine()) {
3045                         enable = false;
3046                         break;
3047                 }
3048                 code = HYPERLINK_CODE;
3049                 break;
3050         case LFUN_IPAMACRO_INSERT: {
3051                 string const arg = cmd.getArg(0);
3052                 if (arg == "deco")
3053                         code = IPADECO_CODE;
3054                 else
3055                         code = IPACHAR_CODE;
3056                 break;
3057         }
3058         case LFUN_QUOTE_INSERT:
3059                 // always allow this, since we will inset a raw quote
3060                 // if an inset is not allowed.
3061                 allow_in_passthru = true;
3062                 break;
3063         case LFUN_SPECIALCHAR_INSERT:
3064                 code = SPECIALCHAR_CODE;
3065                 break;
3066         case LFUN_SPACE_INSERT:
3067                 // slight hack: we know this is allowed in math mode
3068                 if (cur.inTexted())
3069                         code = SPACE_CODE;
3070                 break;
3071         case LFUN_PREVIEW_INSERT:
3072                 code = PREVIEW_CODE;
3073                 break;
3074         case LFUN_SCRIPT_INSERT:
3075                 code = SCRIPT_CODE;
3076                 break;
3077
3078         case LFUN_MATH_INSERT:
3079         case LFUN_MATH_AMS_MATRIX:
3080         case LFUN_MATH_MATRIX:
3081         case LFUN_MATH_DELIM:
3082         case LFUN_MATH_BIGDELIM:
3083         case LFUN_MATH_DISPLAY:
3084         case LFUN_MATH_MODE:
3085         case LFUN_MATH_MACRO:
3086         case LFUN_MATH_SUBSCRIPT:
3087         case LFUN_MATH_SUPERSCRIPT:
3088                 code = MATH_HULL_CODE;
3089                 break;
3090
3091         case LFUN_REGEXP_MODE:
3092                 code = MATH_HULL_CODE;
3093                 enable = cur.buffer()->isInternal() && !cur.inRegexped();
3094                 break;
3095
3096         case LFUN_INSET_MODIFY:
3097                 // We need to disable this, because we may get called for a
3098                 // tabular cell via
3099                 // InsetTabular::getStatus() -> InsetText::getStatus()
3100                 // and we don't handle LFUN_INSET_MODIFY.
3101                 enable = false;
3102                 break;
3103
3104         case LFUN_FONT_EMPH:
3105                 flag.setOnOff(fontinfo.emph() == FONT_ON);
3106                 enable = !cur.paragraph().isPassThru();
3107                 break;
3108
3109         case LFUN_FONT_ITAL:
3110                 flag.setOnOff(fontinfo.shape() == ITALIC_SHAPE);
3111                 enable = !cur.paragraph().isPassThru();
3112                 break;
3113
3114         case LFUN_FONT_NOUN:
3115                 flag.setOnOff(fontinfo.noun() == FONT_ON);
3116                 enable = !cur.paragraph().isPassThru();
3117                 break;
3118
3119         case LFUN_FONT_BOLD:
3120         case LFUN_FONT_BOLDSYMBOL:
3121                 flag.setOnOff(fontinfo.series() == BOLD_SERIES);
3122                 enable = !cur.paragraph().isPassThru();
3123                 break;
3124
3125         case LFUN_FONT_SANS:
3126                 flag.setOnOff(fontinfo.family() == SANS_FAMILY);
3127                 enable = !cur.paragraph().isPassThru();
3128                 break;
3129
3130         case LFUN_FONT_ROMAN:
3131                 flag.setOnOff(fontinfo.family() == ROMAN_FAMILY);
3132                 enable = !cur.paragraph().isPassThru();
3133                 break;
3134
3135         case LFUN_FONT_TYPEWRITER:
3136                 flag.setOnOff(fontinfo.family() == TYPEWRITER_FAMILY);
3137                 enable = !cur.paragraph().isPassThru();
3138                 break;
3139
3140         case LFUN_CUT:
3141         case LFUN_COPY:
3142                 enable = cur.selection();
3143                 break;
3144
3145         case LFUN_PASTE: {
3146                 if (cmd.argument().empty()) {
3147                         if (theClipboard().isInternal())
3148                                 enable = cap::numberOfSelections() > 0;
3149                         else
3150                                 enable = !theClipboard().empty();
3151                         break;
3152                 }
3153
3154                 // we have an argument
3155                 string const arg = to_utf8(cmd.argument());
3156                 if (isStrUnsignedInt(arg)) {
3157                         // it's a number and therefore means the internal stack
3158                         unsigned int n = convert<unsigned int>(arg);
3159                         enable = cap::numberOfSelections() > n;
3160                         break;
3161                 }
3162
3163                 // explicit text type?
3164                 if (arg == "html") {
3165                         // Do not enable for PlainTextType, since some tidying in the
3166                         // frontend is needed for HTML, which is too unsafe for plain text.
3167                         enable = theClipboard().hasTextContents(Clipboard::HtmlTextType);
3168                         break;
3169                 } else if (arg == "latex") {
3170                         // LaTeX is usually not available on the clipboard with
3171                         // the correct MIME type, but in plain text.
3172                         enable = theClipboard().hasTextContents(Clipboard::PlainTextType) ||
3173                                  theClipboard().hasTextContents(Clipboard::LaTeXTextType);
3174                         break;
3175                 }
3176
3177                 Clipboard::GraphicsType type = Clipboard::AnyGraphicsType;
3178                 if (arg == "pdf")
3179                         type = Clipboard::PdfGraphicsType;
3180                 else if (arg == "png")
3181                         type = Clipboard::PngGraphicsType;
3182                 else if (arg == "jpeg")
3183                         type = Clipboard::JpegGraphicsType;
3184                 else if (arg == "linkback")
3185                         type = Clipboard::LinkBackGraphicsType;
3186                 else if (arg == "emf")
3187                         type = Clipboard::EmfGraphicsType;
3188                 else if (arg == "wmf")
3189                         type = Clipboard::WmfGraphicsType;
3190                 else {
3191                         // unknown argument
3192                         LYXERR0("Unrecognized graphics type: " << arg);
3193                         // we don't want to assert if the user just mistyped the LFUN
3194                         LATTEST(cmd.origin() != FuncRequest::INTERNAL);
3195                         enable = false;
3196                         break;
3197                 }
3198                 enable = theClipboard().hasGraphicsContents(type);
3199                 break;
3200         }
3201
3202         case LFUN_CLIPBOARD_PASTE:
3203         case LFUN_CLIPBOARD_PASTE_SIMPLE:
3204                 enable = !theClipboard().empty();
3205                 break;
3206
3207         case LFUN_PRIMARY_SELECTION_PASTE:
3208                 enable = cur.selection() || !theSelection().empty();
3209                 break;
3210
3211         case LFUN_SELECTION_PASTE:
3212                 enable = cap::selection();
3213                 break;
3214
3215         case LFUN_PARAGRAPH_MOVE_UP:
3216                 enable = cur.pit() > 0 && !cur.selection();
3217                 break;
3218
3219         case LFUN_PARAGRAPH_MOVE_DOWN:
3220                 enable = cur.pit() < cur.lastpit() && !cur.selection();
3221                 break;
3222
3223         case LFUN_CHANGE_ACCEPT:
3224         case LFUN_CHANGE_REJECT:
3225                 // In principle, these LFUNs should only be enabled if there
3226                 // is a change at the current position/in the current selection.
3227                 // However, without proper optimizations, this will inevitably
3228                 // result in unacceptable performance - just imagine a user who
3229                 // wants to select the complete content of a long document.
3230                 if (!cur.selection())
3231                         enable = cur.paragraph().isChanged(cur.pos());
3232                 else
3233                         // TODO: context-sensitive enabling of LFUN_CHANGE_ACCEPT/REJECT
3234                         // for selections.
3235                         enable = true;
3236                 break;
3237
3238         case LFUN_OUTLINE_UP:
3239         case LFUN_OUTLINE_DOWN:
3240         case LFUN_OUTLINE_IN:
3241         case LFUN_OUTLINE_OUT:
3242                 // FIXME: LyX is not ready for outlining within inset.
3243                 enable = isMainText()
3244                         && cur.buffer()->text().getTocLevel(cur.pit()) != Layout::NOT_IN_TOC;
3245                 break;
3246
3247         case LFUN_NEWLINE_INSERT:
3248                 // LaTeX restrictions (labels or empty par)
3249                 enable = !cur.paragraph().isPassThru()
3250                         && cur.pos() > cur.paragraph().beginOfBody();
3251                 break;
3252
3253         case LFUN_SEPARATOR_INSERT:
3254                 // Always enabled for now
3255                 enable = true;
3256                 break;
3257
3258         case LFUN_TAB_INSERT:
3259         case LFUN_TAB_DELETE:
3260                 enable = cur.paragraph().isPassThru();
3261                 break;
3262
3263         case LFUN_GRAPHICS_SET_GROUP: {
3264                 InsetGraphics * ins = graphics::getCurrentGraphicsInset(cur);
3265                 if (!ins)
3266                         enable = false;
3267                 else
3268                         flag.setOnOff(to_utf8(cmd.argument()) == ins->getParams().groupId);
3269                 break;
3270         }
3271
3272         case LFUN_NEWPAGE_INSERT:
3273                 // not allowed in description items
3274                 code = NEWPAGE_CODE;
3275                 enable = !inDescriptionItem(cur);
3276                 break;
3277
3278         case LFUN_DATE_INSERT: {
3279                 string const format = cmd.argument().empty()
3280                         ? lyxrc.date_insert_format : to_utf8(cmd.argument());
3281                 enable = support::os::is_valid_strftime(format);
3282                 break;
3283         }
3284
3285         case LFUN_LANGUAGE:
3286                 enable = !cur.paragraph().isPassThru();
3287                 flag.setOnOff(cmd.getArg(0) == cur.real_current_font.language()->lang());
3288                 break;
3289
3290         case LFUN_PARAGRAPH_BREAK:
3291                 enable = inset().allowMultiPar();
3292                 break;
3293
3294         case LFUN_SPELLING_ADD:
3295         case LFUN_SPELLING_IGNORE:
3296         case LFUN_SPELLING_REMOVE:
3297                 enable = theSpellChecker() != NULL;
3298                 if (enable && !cmd.getArg(1).empty()) {
3299                         // validate explicitly given language
3300                         Language const * const lang = const_cast<Language *>(languages.getLanguage(cmd.getArg(1)));
3301                         enable &= lang != NULL;
3302                 }
3303                 break;
3304
3305         case LFUN_LAYOUT: {
3306                 DocumentClass const & tclass = cur.buffer()->params().documentClass();
3307                 bool const ignoreautonests = cmd.getArg(1) == "ignoreautonests";
3308                 docstring layout = ignoreautonests ? from_utf8(cmd.getArg(0)) : cmd.argument();
3309                 if (layout.empty())
3310                         layout = tclass.defaultLayoutName();
3311                 enable = !owner_->forcePlainLayout() && tclass.hasLayout(layout);
3312
3313                 flag.setOnOff(layout == cur.paragraph().layout().name());
3314                 break;
3315         }
3316
3317         case LFUN_ENVIRONMENT_SPLIT: {
3318                 if (cmd.argument() == "outer") {
3319                         // check if we have an environment in our nesting hierarchy
3320                         bool res = false;
3321                         depth_type const current_depth = cur.paragraph().params().depth();
3322                         pit_type pit = cur.pit();
3323                         Paragraph cpar = pars_[pit];
3324                         while (true) {
3325                                 if (pit == 0 || cpar.params().depth() == 0)
3326                                         break;
3327                                 --pit;
3328                                 cpar = pars_[pit];
3329                                 if (cpar.params().depth() < current_depth)
3330                                         res = cpar.layout().isEnvironment();
3331                         }
3332                         enable = res;
3333                         break;
3334                 }
3335                 else if (cmd.argument() == "previous") {
3336                         // look if we have an environment in the previous par
3337                         pit_type pit = cur.pit();
3338                         Paragraph cpar = pars_[pit];
3339                         if (pit > 0) {
3340                                 --pit;
3341                                 cpar = pars_[pit];
3342                                 enable = cpar.layout().isEnvironment();
3343                                 break;
3344                         }
3345                         enable = false;
3346                         break;
3347                 }
3348                 else if (cur.paragraph().layout().isEnvironment()) {
3349                         enable = cmd.argument() == "before"
3350                                 || cur.pos() > 0 || !isFirstInSequence(cur.pit());
3351                         break;
3352                 }
3353                 enable = false;
3354                 break;
3355         }
3356
3357         case LFUN_LAYOUT_PARAGRAPH:
3358         case LFUN_PARAGRAPH_PARAMS:
3359         case LFUN_PARAGRAPH_PARAMS_APPLY:
3360         case LFUN_PARAGRAPH_UPDATE:
3361                 enable = owner_->allowParagraphCustomization();
3362                 break;
3363
3364         // FIXME: why are accent lfuns forbidden with pass_thru layouts?
3365         //  Because they insert COMBINING DIACRITICAL Unicode characters,
3366         //  that cannot be handled by LaTeX but must be converted according
3367         //  to the definition in lib/unicodesymbols?
3368         case LFUN_ACCENT_ACUTE:
3369         case LFUN_ACCENT_BREVE:
3370         case LFUN_ACCENT_CARON:
3371         case LFUN_ACCENT_CEDILLA:
3372         case LFUN_ACCENT_CIRCLE:
3373         case LFUN_ACCENT_CIRCUMFLEX:
3374         case LFUN_ACCENT_DOT:
3375         case LFUN_ACCENT_GRAVE:
3376         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
3377         case LFUN_ACCENT_MACRON:
3378         case LFUN_ACCENT_OGONEK:
3379         case LFUN_ACCENT_TIE:
3380         case LFUN_ACCENT_TILDE:
3381         case LFUN_ACCENT_PERISPOMENI:
3382         case LFUN_ACCENT_UMLAUT:
3383         case LFUN_ACCENT_UNDERBAR:
3384         case LFUN_ACCENT_UNDERDOT:
3385         case LFUN_FONT_DEFAULT:
3386         case LFUN_FONT_FRAK:
3387         case LFUN_FONT_SIZE:
3388         case LFUN_FONT_STATE:
3389         case LFUN_FONT_UNDERLINE:
3390         case LFUN_FONT_STRIKEOUT:
3391         case LFUN_FONT_CROSSOUT:
3392         case LFUN_FONT_UNDERUNDERLINE:
3393         case LFUN_FONT_UNDERWAVE:
3394         case LFUN_TEXTSTYLE_APPLY:
3395         case LFUN_TEXTSTYLE_UPDATE:
3396                 enable = !cur.paragraph().isPassThru();
3397                 break;
3398
3399         case LFUN_WORD_DELETE_FORWARD:
3400         case LFUN_WORD_DELETE_BACKWARD:
3401         case LFUN_LINE_DELETE_FORWARD:
3402         case LFUN_WORD_FORWARD:
3403         case LFUN_WORD_BACKWARD:
3404         case LFUN_WORD_RIGHT:
3405         case LFUN_WORD_LEFT:
3406         case LFUN_CHAR_FORWARD:
3407         case LFUN_CHAR_FORWARD_SELECT:
3408         case LFUN_CHAR_BACKWARD:
3409         case LFUN_CHAR_BACKWARD_SELECT:
3410         case LFUN_CHAR_LEFT:
3411         case LFUN_CHAR_LEFT_SELECT:
3412         case LFUN_CHAR_RIGHT:
3413         case LFUN_CHAR_RIGHT_SELECT:
3414         case LFUN_UP:
3415         case LFUN_UP_SELECT:
3416         case LFUN_DOWN:
3417         case LFUN_DOWN_SELECT:
3418         case LFUN_PARAGRAPH_UP_SELECT:
3419         case LFUN_PARAGRAPH_DOWN_SELECT:
3420         case LFUN_LINE_BEGIN_SELECT:
3421         case LFUN_LINE_END_SELECT:
3422         case LFUN_WORD_FORWARD_SELECT:
3423         case LFUN_WORD_BACKWARD_SELECT:
3424         case LFUN_WORD_RIGHT_SELECT:
3425         case LFUN_WORD_LEFT_SELECT:
3426         case LFUN_WORD_SELECT:
3427         case LFUN_SECTION_SELECT:
3428         case LFUN_BUFFER_BEGIN:
3429         case LFUN_BUFFER_END:
3430         case LFUN_BUFFER_BEGIN_SELECT:
3431         case LFUN_BUFFER_END_SELECT:
3432         case LFUN_INSET_BEGIN:
3433         case LFUN_INSET_END:
3434         case LFUN_INSET_BEGIN_SELECT:
3435         case LFUN_INSET_END_SELECT:
3436         case LFUN_PARAGRAPH_UP:
3437         case LFUN_PARAGRAPH_DOWN:
3438         case LFUN_LINE_BEGIN:
3439         case LFUN_LINE_END:
3440         case LFUN_CHAR_DELETE_FORWARD:
3441         case LFUN_CHAR_DELETE_BACKWARD:
3442         case LFUN_WORD_UPCASE:
3443         case LFUN_WORD_LOWCASE:
3444         case LFUN_WORD_CAPITALIZE:
3445         case LFUN_CHARS_TRANSPOSE:
3446         case LFUN_SERVER_GET_XY:
3447         case LFUN_SERVER_SET_XY:
3448         case LFUN_SERVER_GET_LAYOUT:
3449         case LFUN_SELF_INSERT:
3450         case LFUN_UNICODE_INSERT:
3451         case LFUN_THESAURUS_ENTRY:
3452         case LFUN_ESCAPE:
3453         case LFUN_SERVER_GET_STATISTICS:
3454                 // these are handled in our dispatch()
3455                 enable = true;
3456                 break;
3457
3458         case LFUN_INSET_INSERT: {
3459                 string const type = cmd.getArg(0);
3460                 if (type == "toc") {
3461                         code = TOC_CODE;
3462                         // not allowed in description items
3463                         //FIXME: couldn't this be merged in Inset::insetAllowed()?
3464                         enable = !inDescriptionItem(cur);
3465                 } else {
3466                         enable = true;
3467                 }
3468                 break;
3469         }
3470
3471         default:
3472                 return false;
3473         }
3474
3475         if (code != NO_CODE
3476             && (cur.empty()
3477                 || !cur.inset().insetAllowed(code)
3478                 || (cur.paragraph().layout().pass_thru && !allow_in_passthru)))
3479                 enable = false;
3480
3481         flag.setEnabled(enable);
3482         return true;
3483 }
3484
3485
3486 void Text::pasteString(Cursor & cur, docstring const & clip,
3487                 bool asParagraphs)
3488 {
3489         if (!clip.empty()) {
3490                 cur.recordUndo();
3491                 if (asParagraphs)
3492                         insertStringAsParagraphs(cur, clip, cur.current_font);
3493                 else
3494                         insertStringAsLines(cur, clip, cur.current_font);
3495         }
3496 }
3497
3498
3499 // FIXME: an item inset would make things much easier.
3500 bool Text::inDescriptionItem(Cursor & cur) const
3501 {
3502         Paragraph & par = cur.paragraph();
3503         pos_type const pos = cur.pos();
3504         pos_type const body_pos = par.beginOfBody();
3505
3506         if (par.layout().latextype != LATEX_LIST_ENVIRONMENT
3507             && (par.layout().latextype != LATEX_ITEM_ENVIRONMENT
3508                 || par.layout().margintype != MARGIN_FIRST_DYNAMIC))
3509                 return false;
3510
3511         return (pos < body_pos
3512                 || (pos == body_pos
3513                     && (pos == 0 || par.getChar(pos - 1) != ' ')));
3514 }
3515
3516 } // namespace lyx