src/Text3.cpp

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