src/insets/InsetText.cpp

   1 /**
   2  * \file InsetText.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Jürgen Vigna
   7  *
   8  * Full author contact details are available in file CREDITS.
   9  */
  10
  11 #include <config.h>
  12
  13 #include "InsetText.h"
  14
  15 #include "insets/InsetArgument.h"
  16 #include "insets/InsetLayout.h"
  17
  18 #include "buffer_funcs.h"
  19 #include "Buffer.h"
  20 #include "BufferParams.h"
  21 #include "BufferView.h"
  22 #include "CompletionList.h"
  23 #include "CoordCache.h"
  24 #include "Cursor.h"
  25 #include "CutAndPaste.h"
  26 #include "DispatchResult.h"
  27 #include "ErrorList.h"
  28 #include "FuncRequest.h"
  29 #include "FuncStatus.h"
  30 #include "InsetList.h"
  31 #include "Intl.h"
  32 #include "Language.h"
  33 #include "Layout.h"
  34 #include "LaTeXFeatures.h"
  35 #include "Lexer.h"
  36 #include "lyxfind.h"
  37 #include "LyXRC.h"
  38 #include "MetricsInfo.h"
  39 #include "output_docbook.h"
  40 #include "output_latex.h"
  41 #include "output_plaintext.h"
  42 #include "output_xhtml.h"
  43 #include "OutputParams.h"
  44 #include "Paragraph.h"
  45 #include "ParagraphParameters.h"
  46 #include "ParIterator.h"
  47 #include "Row.h"
  48 #include "TexRow.h"
  49 #include "texstream.h"
  50 #include "TextClass.h"
  51 #include "Text.h"
  52 #include "TextMetrics.h"
  53 #include "TocBackend.h"
  54
  55 #include "frontends/alert.h"
  56 #include "frontends/Painter.h"
  57
  58 #include "support/convert.h"
  59 #include "support/debug.h"
  60 #include "support/gettext.h"
  61 #include "support/lassert.h"
  62 #include "support/lstrings.h"
  63 #include "support/RefChanger.h"
  64
  65 #include <algorithm>
  66
  67
  68 using namespace std;
  69 using namespace lyx::support;
  70
  71
  72 namespace lyx {
  73
  74 using graphics::PreviewLoader;
  75
  76
  77 /////////////////////////////////////////////////////////////////////
  78
  79 InsetText::InsetText(Buffer * buf, UsePlain type)
  80         : Inset(buf), drawFrame_(false), is_changed_(false), intitle_context_(false),
  81           frame_color_(Color_insetframe),
  82         text_(this, type == DefaultLayout)
  83 {
  84 }
  85
  86
  87 InsetText::InsetText(InsetText const & in)
  88         : Inset(in), drawFrame_(in.drawFrame_), is_changed_(in.is_changed_),
  89           intitle_context_(false), frame_color_(in.frame_color_),
  90           text_(this, in.text_)
  91 {
  92 }
  93
  94
  95 void InsetText::setBuffer(Buffer & buf)
  96 {
  97         ParagraphList::iterator end = paragraphs().end();
  98         for (ParagraphList::iterator it = paragraphs().begin(); it != end; ++it)
  99                 it->setInsetBuffers(buf);
 100         Inset::setBuffer(buf);
 101 }
 102
 103
 104 void InsetText::setMacrocontextPositionRecursive(DocIterator const & pos)
 105 {
 106         text_.setMacrocontextPosition(pos);
 107
 108         ParagraphList::const_iterator pit = paragraphs().begin();
 109         ParagraphList::const_iterator pend = paragraphs().end();
 110         for (; pit != pend; ++pit) {
 111                 InsetList::const_iterator iit = pit->insetList().begin();
 112                 InsetList::const_iterator end = pit->insetList().end();
 113                 for (; iit != end; ++iit) {
 114                         if (InsetText * txt = iit->inset->asInsetText()) {
 115                                 DocIterator ppos(pos);
 116                                 ppos.push_back(CursorSlice(*txt));
 117                                 iit->inset->asInsetText()->setMacrocontextPositionRecursive(ppos);
 118                         }
 119                 }
 120         }
 121 }
 122
 123
 124 void InsetText::clear()
 125 {
 126         ParagraphList & pars = paragraphs();
 127         LBUFERR(!pars.empty());
 128
 129         // This is a gross hack...
 130         Layout const & old_layout = pars.begin()->layout();
 131
 132         pars.clear();
 133         pars.push_back(Paragraph());
 134         pars.begin()->setInsetOwner(this);
 135         pars.begin()->setLayout(old_layout);
 136 }
 137
 138
 139 Dimension const InsetText::dimensionHelper(BufferView const & bv) const
 140 {
 141         TextMetrics const & tm = bv.textMetrics(&text_);
 142         Dimension dim = tm.dim();
 143         dim.wid += leftOffset(&bv) + rightOffset(&bv);
 144         dim.des += bottomOffset(&bv);
 145         dim.asc += topOffset(&bv);
 146         return dim;
 147 }
 148
 149
 150 void InsetText::write(ostream & os) const
 151 {
 152         os << "Text\n";
 153         text_.write(os);
 154 }
 155
 156
 157 void InsetText::read(Lexer & lex)
 158 {
 159         clear();
 160
 161         // delete the initial paragraph
 162         Paragraph oldpar = *paragraphs().begin();
 163         paragraphs().clear();
 164         ErrorList errorList;
 165         lex.setContext("InsetText::read");
 166         bool res = text_.read(lex, errorList, this);
 167
 168         if (!res)
 169                 lex.printError("Missing \\end_inset at this point. ");
 170
 171         // sanity check
 172         // ensure we have at least one paragraph.
 173         if (paragraphs().empty())
 174                 paragraphs().push_back(oldpar);
 175         // Force default font, if so requested
 176         // This avoids paragraphs in buffer language that would have a
 177         // foreign language after a document language change, and it ensures
 178         // that all new text in ERT and similar gets the "latex" language,
 179         // since new text inherits the language from the last position of the
 180         // existing text.  As a side effect this makes us also robust against
 181         // bugs in LyX that might lead to font changes in ERT in .lyx files.
 182         fixParagraphsFont();
 183 }
 184
 185
 186 void InsetText::metrics(MetricsInfo & mi, Dimension & dim) const
 187 {
 188         TextMetrics & tm = mi.base.bv->textMetrics(&text_);
 189
 190         //lyxerr << "InsetText::metrics: width: " << mi.base.textwidth << endl;
 191
 192         int const horiz_offset = leftOffset(mi.base.bv) + rightOffset(mi.base.bv);
 193
 194         // Hand font through to contained lyxtext:
 195         tm.font_.fontInfo() = mi.base.font;
 196         mi.base.textwidth -= horiz_offset;
 197
 198         // This can happen when a layout has a left and right margin,
 199         // and the view is made very narrow. We can't do better than
 200         // to draw it partly out of view (bug 5890).
 201         if (mi.base.textwidth < 1)
 202                 mi.base.textwidth = 1;
 203
 204         if (hasFixedWidth())
 205                 tm.metrics(mi, dim, mi.base.textwidth);
 206         else
 207                 tm.metrics(mi, dim);
 208         mi.base.textwidth += horiz_offset;
 209         dim.asc += topOffset(mi.base.bv);
 210         dim.des += bottomOffset(mi.base.bv);
 211         dim.wid += horiz_offset;
 212 }
 213
 214
 215 void InsetText::draw(PainterInfo & pi, int x, int y) const
 216 {
 217         TextMetrics & tm = pi.base.bv->textMetrics(&text_);
 218
 219         int const horiz_offset = leftOffset(pi.base.bv) + rightOffset(pi.base.bv);
 220         int const w = tm.width() + (horiz_offset - horiz_offset / 2);
 221         int const yframe = y - topOffset(pi.base.bv) - tm.ascent();
 222         int const h = tm.height() + topOffset(pi.base.bv) + bottomOffset(pi.base.bv);
 223         int const xframe = x + leftOffset(pi.base.bv) / 2;
 224         bool change_drawn = false;
 225         if (pi.full_repaint)
 226                         pi.pain.fillRectangle(xframe, yframe, w, h,
 227                                 pi.backgroundColor(this));
 228
 229         {
 230                 Changer dummy = make_change(pi.background_color,
 231                                             pi.backgroundColor(this, false));
 232                 // The change tracking cue must not be inherited
 233                 Changer dummy2 = make_change(pi.change, Change());
 234                 tm.draw(pi, x + leftOffset(pi.base.bv), y);
 235         }
 236
 237         if (drawFrame_) {
 238                 // Change color of the frame in tracked changes, like for tabulars.
 239                 // Only do so if the color is not custom. But do so even if RowPainter
 240                 // handles the strike-through already.
 241                 Color c;
 242                 if (pi.change.changed()
 243                     // Originally, these are the colors with role Text, from role() in
 244                     // ColorCache.cpp.  The code is duplicated to avoid depending on Qt
 245                     // types, and also maybe it need not match in the future.
 246                     && (frameColor() == Color_foreground
 247                         || frameColor() == Color_cursor
 248                         || frameColor() == Color_preview
 249                         || frameColor() == Color_tabularline
 250                         || frameColor() == Color_previewframe)) {
 251                         c = pi.change.color();
 252                         change_drawn = true;
 253                 } else
 254                         c = frameColor();
 255                 pi.pain.rectangle(xframe, yframe, w, h, c);
 256         }
 257
 258         if (canPaintChange(*pi.base.bv) && (!change_drawn || pi.change.deleted()))
 259                 // Do not draw the change tracking cue if already done by RowPainter and
 260                 // do not draw the cue for INSERTED if the information is already in the
 261                 // color of the frame
 262                 pi.change.paintCue(pi, xframe, yframe, xframe + w, yframe + h);
 263 }
 264
 265
 266 void InsetText::edit(Cursor & cur, bool front, EntryDirection entry_from)
 267 {
 268         pit_type const pit = front ? 0 : paragraphs().size() - 1;
 269         pos_type pos = front ? 0 : paragraphs().back().size();
 270
 271         // if visual information is not to be ignored, move to extreme right/left
 272         if (entry_from != ENTRY_DIRECTION_IGNORE) {
 273                 Cursor temp_cur = cur;
 274                 temp_cur.pit() = pit;
 275                 temp_cur.pos() = pos;
 276                 temp_cur.posVisToRowExtremity(entry_from == ENTRY_DIRECTION_LEFT);
 277                 pos = temp_cur.pos();
 278         }
 279
 280         cur.top().setPitPos(pit, pos);
 281         cur.finishUndo();
 282 }
 283
 284
 285 Inset * InsetText::editXY(Cursor & cur, int x, int y)
 286 {
 287         return cur.bv().textMetrics(&text_).editXY(cur, x, y);
 288 }
 289
 290
 291 void InsetText::doDispatch(Cursor & cur, FuncRequest & cmd)
 292 {
 293         LYXERR(Debug::ACTION, "InsetText::doDispatch(): cmd: " << cmd);
 294
 295         // See bug #9042, for instance.
 296         if (isPassThru()) {
 297                 // Force any new text to latex_language FIXME: This
 298                 // should only be necessary in constructor, but new
 299                 // paragraphs that are created by pressing enter at
 300                 // the start of an existing paragraph get the buffer
 301                 // language and not latex_language, so we take this
 302                 // brute force approach.
 303                 cur.current_font.setLanguage(latex_language);
 304                 cur.real_current_font.setLanguage(latex_language);
 305         }
 306
 307         switch (cmd.action()) {
 308         case LFUN_PASTE:
 309         case LFUN_CLIPBOARD_PASTE:
 310         case LFUN_SELECTION_PASTE:
 311         case LFUN_PRIMARY_SELECTION_PASTE:
 312                 text_.dispatch(cur, cmd);
 313                 // If we we can only store plain text, we must reset all
 314                 // attributes.
 315                 // FIXME: Change only the pasted paragraphs
 316                 fixParagraphsFont();
 317                 break;
 318
 319         case LFUN_INSET_DISSOLVE: {
 320                 bool const main_inset = text_.isMainText();
 321                 bool const target_inset = cmd.argument().empty()
 322                         || cmd.getArg(0) == insetName(lyxCode());
 323
 324                 if (!main_inset && target_inset) {
 325                         // Text::dissolveInset assumes that the cursor
 326                         // is inside the Inset.
 327                         if (&cur.inset() != this)
 328                                 cur.pushBackward(*this);
 329                         cur.beginUndoGroup();
 330                         text_.dispatch(cur, cmd);
 331                         cur.endUndoGroup();
 332                 } else
 333                         cur.undispatched();
 334                 break;
 335         }
 336
 337         default:
 338                 text_.dispatch(cur, cmd);
 339         }
 340
 341         if (!cur.result().dispatched())
 342                 Inset::doDispatch(cur, cmd);
 343 }
 344
 345
 346 bool InsetText::getStatus(Cursor & cur, FuncRequest const & cmd,
 347         FuncStatus & status) const
 348 {
 349         switch (cmd.action()) {
 350         case LFUN_INSET_DISSOLVE: {
 351                 bool const main_inset = text_.isMainText();
 352                 bool const target_inset = cmd.argument().empty()
 353                         || cmd.getArg(0) == insetName(lyxCode());
 354
 355                 if (target_inset)
 356                         status.setEnabled(!main_inset);
 357                 return target_inset;
 358         }
 359
 360         case LFUN_ARGUMENT_INSERT: {
 361                 string const arg = cmd.getArg(0);
 362                 if (arg.empty()) {
 363                         status.setEnabled(false);
 364                         return true;
 365                 }
 366                 if (text_.isMainText() || !cur.paragraph().layout().args().empty())
 367                         return text_.getStatus(cur, cmd, status);
 368
 369                 Layout::LaTeXArgMap args = getLayout().args();
 370                 Layout::LaTeXArgMap::const_iterator const lait = args.find(arg);
 371                 if (lait != args.end()) {
 372                         status.setEnabled(true);
 373                         for (Paragraph const & par : paragraphs())
 374                                 for (auto const & table : par.insetList())
 375                                         if (InsetArgument const * ins = table.inset->asInsetArgument())
 376                                                 if (ins->name() == arg) {
 377                                                         // we have this already
 378                                                         status.setEnabled(false);
 379                                                         return true;
 380                                                 }
 381                 } else
 382                         status.setEnabled(false);
 383                 return true;
 384         }
 385
 386         default:
 387                 // Dispatch only to text_ if the cursor is inside
 388                 // the text_. It is not for context menus (bug 5797).
 389                 bool ret = false;
 390                 if (cur.text() == &text_)
 391                         ret = text_.getStatus(cur, cmd, status);
 392
 393                 if (!ret)
 394                         ret = Inset::getStatus(cur, cmd, status);
 395                 return ret;
 396         }
 397 }
 398
 399
 400 void InsetText::fixParagraphsFont()
 401 {
 402         Font font(inherit_font, buffer().params().language);
 403         font.setLanguage(latex_language);
 404         ParagraphList::iterator par = paragraphs().begin();
 405         ParagraphList::iterator const end = paragraphs().end();
 406         while (par != end) {
 407                 if (par->isPassThru())
 408                         par->resetFonts(font);
 409                 if (!par->allowParagraphCustomization())
 410                         par->params().clear();
 411                 ++par;
 412         }
 413 }
 414
 415
 416 // bool InsetText::isChanged() const
 417 // {
 418 //      ParagraphList::const_iterator pit = paragraphs().begin();
 419 //      ParagraphList::const_iterator end = paragraphs().end();
 420 //      for (; pit != end; ++pit) {
 421 //              if (pit->isChanged())
 422 //                      return true;
 423 //      }
 424 //      return false;
 425 // }
 426
 427
 428 void InsetText::setChange(Change const & change)
 429 {
 430         ParagraphList::iterator pit = paragraphs().begin();
 431         ParagraphList::iterator end = paragraphs().end();
 432         for (; pit != end; ++pit) {
 433                 pit->setChange(change);
 434         }
 435 }
 436
 437
 438 void InsetText::acceptChanges()
 439 {
 440         text_.acceptChanges();
 441 }
 442
 443
 444 void InsetText::rejectChanges()
 445 {
 446         text_.rejectChanges();
 447 }
 448
 449
 450 void InsetText::validate(LaTeXFeatures & features) const
 451 {
 452         features.useInsetLayout(getLayout());
 453         for (Paragraph const & p : paragraphs())
 454                 p.validate(features);
 455 }
 456
 457
 458 void InsetText::latex(otexstream & os, OutputParams const & runparams) const
 459 {
 460         // This implements the standard way of handling the LaTeX
 461         // output of a text inset, either a command or an
 462         // environment. Standard collapsible insets should not
 463         // redefine this, non-standard ones may call this.
 464         InsetLayout const & il = getLayout();
 465         if (il.forceOwnlines())
 466                 os << breakln;
 467         bool needendgroup = false;
 468         if (!il.latexname().empty()) {
 469                 if (il.latextype() == InsetLayout::COMMAND) {
 470                         // FIXME UNICODE
 471                         // FIXME \protect should only be used for fragile
 472                         //    commands, but we do not provide this information yet.
 473                         if (hasCProtectContent(runparams.moving_arg)) {
 474                                 if (contains(runparams.active_chars, '^')) {
 475                                         // cprotect relies on ^ being on catcode 7
 476                                         os << "\\begingroup\\catcode`\\^=7";
 477                                         needendgroup = true;
 478                                 }
 479                                 os << "\\cprotect";
 480                         } else if (runparams.moving_arg)
 481                                 os << "\\protect";
 482                         os << '\\' << from_utf8(il.latexname());
 483                         if (!il.latexargs().empty())
 484                                 getArgs(os, runparams);
 485                         if (!il.latexparam().empty())
 486                                 os << from_utf8(il.latexparam());
 487                         os << '{';
 488                 } else if (il.latextype() == InsetLayout::ENVIRONMENT) {
 489                         if (il.isDisplay())
 490                                 os << breakln;
 491                         else
 492                                 os << safebreakln;
 493                         if (runparams.lastid != -1)
 494                                 os.texrow().start(runparams.lastid,
 495                                                   runparams.lastpos);
 496                         os << "\\begin{" << from_utf8(il.latexname()) << "}";
 497                         if (!il.latexargs().empty())
 498                                 getArgs(os, runparams);
 499                         if (!il.latexparam().empty())
 500                                 os << from_utf8(il.latexparam());
 501                         os << '\n';
 502                 }
 503         } else {
 504                 if (!il.latexargs().empty())
 505                         getArgs(os, runparams);
 506                 if (!il.latexparam().empty())
 507                         os << from_utf8(il.latexparam());
 508         }
 509
 510         if (!il.leftdelim().empty())
 511                 os << il.leftdelim();
 512
 513         OutputParams rp = runparams;
 514         if (isPassThru())
 515                 rp.pass_thru = true;
 516         if (il.isNeedProtect())
 517                 rp.moving_arg = true;
 518         if (il.isNeedMBoxProtect())
 519                 ++rp.inulemcmd;
 520         if (!il.passThruChars().empty())
 521                 rp.pass_thru_chars += il.passThruChars();
 522         if (!il.newlineCmd().empty())
 523                 rp.newlinecmd = il.newlineCmd();
 524         rp.par_begin = 0;
 525         rp.par_end = paragraphs().size();
 526
 527         // Output the contents of the inset
 528         latexParagraphs(buffer(), text_, os, rp);
 529         runparams.encoding = rp.encoding;
 530         // Pass the post_macros upstream
 531         runparams.post_macro = rp.post_macro;
 532         // These need to be passed upstream as well
 533         runparams.need_maketitle = rp.need_maketitle;
 534         runparams.have_maketitle = rp.have_maketitle;
 535
 536         if (!il.rightdelim().empty())
 537                 os << il.rightdelim();
 538
 539         if (!il.latexname().empty()) {
 540                 if (il.latextype() == InsetLayout::COMMAND) {
 541                         os << "}";
 542                         if (!il.postcommandargs().empty())
 543                                 getArgs(os, runparams, true);
 544                         if (needendgroup)
 545                                 os << "\\endgroup";
 546                 } else if (il.latextype() == InsetLayout::ENVIRONMENT) {
 547                         // A comment environment doesn't need a % before \n\end
 548                         if (il.isDisplay() || runparams.inComment)
 549                                 os << breakln;
 550                         else
 551                                 os << safebreakln;
 552                         os << "\\end{" << from_utf8(il.latexname()) << "}" << breakln;
 553                         if (!il.isDisplay())
 554                                 os.protectSpace(true);
 555                 }
 556         }
 557         if (il.forceOwnlines())
 558                 os << breakln;
 559 }
 560
 561
 562 int InsetText::plaintext(odocstringstream & os,
 563         OutputParams const & runparams, size_t max_length) const
 564 {
 565         ParagraphList::const_iterator beg = paragraphs().begin();
 566         ParagraphList::const_iterator end = paragraphs().end();
 567         ParagraphList::const_iterator it = beg;
 568         bool ref_printed = false;
 569         int len = 0;
 570         for (; it != end; ++it) {
 571                 if (it != beg) {
 572                         os << '\n';
 573                         if (runparams.linelen > 0 && !getLayout().parbreakIsNewline())
 574                                 os << '\n';
 575                 }
 576                 odocstringstream oss;
 577                 writePlaintextParagraph(buffer(), *it, oss, runparams, ref_printed, max_length);
 578                 docstring const str = oss.str();
 579                 os << str;
 580                 // FIXME: len is not computed fully correctly; in principle,
 581                 // we have to count the characters after the last '\n'
 582                 len = str.size();
 583                 if (os.str().size() >= max_length)
 584                         break;
 585         }
 586
 587         return len;
 588 }
 589
 590
 591
 592 void InsetText::docbook(XMLStream & xs, OutputParams const & rp) const
 593 {
 594         docbook(xs, rp, WriteEverything);
 595 }
 596
 597
 598 void InsetText::docbook(XMLStream & xs, OutputParams const & rp, XHTMLOptions opts) const
 599 {
 600         // we will always want to output all our paragraphs when we are
 601         // called this way.
 602         OutputParams runparams = rp;
 603         runparams.par_begin = 0;
 604         runparams.par_end = text().paragraphs().size();
 605
 606         if (undefined()) {
 607                 xs.startDivision(false);
 608                 docbookParagraphs(text_, buffer(), xs, runparams);
 609                 xs.endDivision();
 610                 return;
 611         }
 612
 613         InsetLayout const & il = getLayout();
 614         if (opts & WriteOuterTag && !il.docbooktag().empty() && il.docbooktag() != "NONE") {
 615                 docstring attrs = docstring();
 616                 if (!il.docbookattr().empty())
 617                         attrs += from_ascii(il.docbookattr());
 618                 if (il.docbooktag() == "link")
 619                         attrs += from_ascii(" xlink:href=\"") + text_.asString() + from_ascii("\"");
 620                 xs << xml::StartTag(il.docbooktag(), attrs);
 621         }
 622
 623         // No need for labels that are generated from counters.
 624
 625         // With respect to XHTML, paragraphs are still allowed here.
 626         if (!allowMultiPar())
 627                 runparams.docbook_make_pars = false;
 628         if (il.isPassThru())
 629                 runparams.pass_thru = true;
 630
 631         xs.startDivision(false);
 632         docbookParagraphs(text_, buffer(), xs, runparams);
 633         xs.endDivision();
 634
 635         if (opts & WriteOuterTag)
 636                 xs << xml::EndTag(il.docbooktag());
 637 }
 638
 639
 640 docstring InsetText::xhtml(XMLStream & xs, OutputParams const & runparams) const
 641 {
 642         return insetAsXHTML(xs, runparams, WriteEverything);
 643 }
 644
 645
 646 // FIXME XHTML
 647 // There are cases where we may need to close open fonts and such
 648 // and then re-open them when we are done. This would be the case, e.g.,
 649 // if we were otherwise about to write:
 650 //              <em>word <div class='foot'>footnote text.</div> emph</em>
 651 // The problem isn't so much that the footnote text will get emphasized:
 652 // we can handle that with CSS. The problem is that this is invalid XHTML.
 653 // One solution would be to make the footnote <span>, but the problem is
 654 // completely general, and so we'd have to make absolutely everything into
 655 // span. What I think will work is to check if we're about to write "div" and,
 656 // if so, try to close fonts, etc.
 657 // There are probably limits to how well we can do here, though, and we will
 658 // have to rely upon users not putting footnotes inside noun-type insets.
 659 docstring InsetText::insetAsXHTML(XMLStream & xs, OutputParams const & rp,
 660                                   XHTMLOptions opts) const
 661 {
 662         // we will always want to output all our paragraphs when we are
 663         // called this way.
 664         OutputParams runparams = rp;
 665         runparams.par_begin = 0;
 666         runparams.par_end = text().paragraphs().size();
 667
 668         if (undefined()) {
 669                 xs.startDivision(false);
 670                 xhtmlParagraphs(text_, buffer(), xs, runparams);
 671                 xs.endDivision();
 672                 return docstring();
 673         }
 674
 675         InsetLayout const & il = getLayout();
 676         if (opts & WriteOuterTag)
 677                 xs << xml::StartTag(il.htmltag(), il.htmlattr());
 678
 679         if ((opts & WriteLabel) && !il.counter().empty()) {
 680                 BufferParams const & bp = buffer().masterBuffer()->params();
 681                 Counters & cntrs = bp.documentClass().counters();
 682                 cntrs.step(il.counter(), OutputUpdate);
 683                 // FIXME: translate to paragraph language
 684                 if (!il.htmllabel().empty()) {
 685                         docstring const lbl =
 686                                 cntrs.counterLabel(from_utf8(il.htmllabel()), bp.language->code());
 687                         // FIXME is this check necessary?
 688                         if (!lbl.empty()) {
 689                                 xs << xml::StartTag(il.htmllabeltag(), il.htmllabelattr());
 690                                 xs << lbl;
 691                                 xs << xml::EndTag(il.htmllabeltag());
 692                         }
 693                 }
 694         }
 695
 696         if (opts & WriteInnerTag)
 697                 xs << xml::StartTag(il.htmlinnertag(), il.htmlinnerattr());
 698
 699         // we will eventually lose information about the containing inset
 700         if (!allowMultiPar() || opts == JustText)
 701                 runparams.html_make_pars = false;
 702         if (il.isPassThru())
 703                 runparams.pass_thru = true;
 704
 705         xs.startDivision(false);
 706         xhtmlParagraphs(text_, buffer(), xs, runparams);
 707         xs.endDivision();
 708
 709         if (opts & WriteInnerTag)
 710                 xs << xml::EndTag(il.htmlinnertag());
 711
 712         if (opts & WriteOuterTag)
 713                 xs << xml::EndTag(il.htmltag());
 714
 715         return docstring();
 716 }
 717
 718
 719 void InsetText::getArgs(otexstream & os, OutputParams const & runparams_in,
 720                         bool const post) const
 721 {
 722         OutputParams runparams = runparams_in;
 723         runparams.local_font =
 724                 &paragraphs()[0].getFirstFontSettings(buffer().masterBuffer()->params());
 725         if (isPassThru())
 726                 runparams.pass_thru = true;
 727         if (post)
 728                 latexArgInsetsForParent(paragraphs(), os, runparams,
 729                                         getLayout().postcommandargs(), "post:");
 730         else
 731                 latexArgInsetsForParent(paragraphs(), os, runparams,
 732                                         getLayout().latexargs());
 733 }
 734
 735
 736 void InsetText::cursorPos(BufferView const & bv,
 737                 CursorSlice const & sl, bool boundary, int & x, int & y) const
 738 {
 739         x = bv.textMetrics(&text_).cursorX(sl, boundary) + leftOffset(&bv);
 740         y = bv.textMetrics(&text_).cursorY(sl, boundary);
 741 }
 742
 743
 744 void InsetText::setText(docstring const & data, Font const & font, bool trackChanges)
 745 {
 746         clear();
 747         Paragraph & first = paragraphs().front();
 748         for (unsigned int i = 0; i < data.length(); ++i)
 749                 first.insertChar(i, data[i], font, trackChanges);
 750 }
 751
 752
 753 void InsetText::setDrawFrame(bool flag)
 754 {
 755         drawFrame_ = flag;
 756 }
 757
 758
 759 ColorCode InsetText::frameColor() const
 760 {
 761         return frame_color_;
 762 }
 763
 764
 765 void InsetText::setFrameColor(ColorCode col)
 766 {
 767         frame_color_ = col;
 768 }
 769
 770
 771 void InsetText::appendParagraphs(ParagraphList & plist)
 772 {
 773         // There is little we can do here to keep track of changes.
 774         // As of 2006/10/20, appendParagraphs is used exclusively by
 775         // LyXTabular::setMultiColumn. In this context, the paragraph break
 776         // is lost irreversibly and the appended text doesn't really change
 777
 778         ParagraphList & pl = paragraphs();
 779
 780         ParagraphList::iterator pit = plist.begin();
 781         ParagraphList::iterator ins = pl.insert(pl.end(), *pit);
 782         ++pit;
 783         mergeParagraph(buffer().params(), pl,
 784                        distance(pl.begin(), ins) - 1);
 785
 786         ParagraphList::iterator const pend = plist.end();
 787         for (; pit != pend; ++pit)
 788                 pl.push_back(*pit);
 789 }
 790
 791
 792 void InsetText::addPreview(DocIterator const & text_inset_pos,
 793         PreviewLoader & loader) const
 794 {
 795         ParagraphList::const_iterator pit = paragraphs().begin();
 796         ParagraphList::const_iterator pend = paragraphs().end();
 797         int pidx = 0;
 798
 799         DocIterator inset_pos = text_inset_pos;
 800         inset_pos.push_back(CursorSlice(*const_cast<InsetText *>(this)));
 801
 802         for (; pit != pend; ++pit, ++pidx) {
 803                 InsetList::const_iterator it  = pit->insetList().begin();
 804                 InsetList::const_iterator end = pit->insetList().end();
 805                 inset_pos.pit() = pidx;
 806                 for (; it != end; ++it) {
 807                         inset_pos.pos() = it->pos;
 808                         it->inset->addPreview(inset_pos, loader);
 809                 }
 810         }
 811 }
 812
 813
 814 ParagraphList const & InsetText::paragraphs() const
 815 {
 816         return text_.paragraphs();
 817 }
 818
 819
 820 ParagraphList & InsetText::paragraphs()
 821 {
 822         return text_.paragraphs();
 823 }
 824
 825
 826 bool InsetText::hasCProtectContent(bool fragile) const
 827 {
 828         fragile |= getLayout().isNeedProtect();
 829         ParagraphList const & pars = paragraphs();
 830         pit_type pend = pit_type(paragraphs().size());
 831         for (pit_type pit = 0; pit != pend; ++pit) {
 832                 Paragraph const & par = pars[size_type(pit)];
 833                 if (par.needsCProtection(fragile))
 834                         return true;
 835         }
 836         return false;
 837 }
 838
 839
 840 bool InsetText::insetAllowed(InsetCode code) const
 841 {
 842         switch (code) {
 843         // Arguments and (plain) quotes are also allowed in PassThru insets
 844         case ARG_CODE:
 845         case QUOTE_CODE:
 846                 return true;
 847         default:
 848                 return !isPassThru();
 849         }
 850 }
 851
 852
 853 void InsetText::updateBuffer(ParIterator const & it, UpdateType utype, bool const deleted)
 854 {
 855         ParIterator it2 = it;
 856         it2.forwardPos();
 857         LASSERT(&it2.inset() == this && it2.pit() == 0, return);
 858         if (producesOutput()) {
 859                 InsetLayout const & il = getLayout();
 860                 bool const save_layouts = utype == OutputUpdate && il.htmlisblock();
 861                 Counters & cnt = buffer().masterBuffer()->params().documentClass().counters();
 862                 if (save_layouts) {
 863                         // LYXERR0("Entering " << name());
 864                         cnt.clearLastLayout();
 865                         // FIXME cnt.saveLastCounter()?
 866                 }
 867                 buffer().updateBuffer(it2, utype, deleted);
 868                 if (save_layouts) {
 869                         // LYXERR0("Exiting " << name());
 870                         cnt.restoreLastLayout();
 871                         // FIXME cnt.restoreLastCounter()?
 872                 }
 873                 // Record in this inset is embedded in a title layout
 874                 // This is needed to decide when \maketitle is output.
 875                 intitle_context_ = it.paragraph().layout().intitle;
 876                 // Also check embedding layouts
 877                 size_t const n = it.depth();
 878                 for (size_t i = 0; i < n; ++i) {
 879                         if (it[i].paragraph().layout().intitle) {
 880                                 intitle_context_ = true;
 881                                 break;
 882                         }
 883                 }
 884         } else {
 885                 DocumentClass const & tclass = buffer().masterBuffer()->params().documentClass();
 886                 // Note that we do not need to call:
 887                 //      tclass.counters().clearLastLayout()
 888                 // since we are saving and restoring the existing counters, etc.
 889                 Counters savecnt = tclass.counters();
 890                 tclass.counters().reset();
 891                 // we need float information even in note insets (#9760)
 892                 tclass.counters().current_float(savecnt.current_float());
 893                 tclass.counters().isSubfloat(savecnt.isSubfloat());
 894                 buffer().updateBuffer(it2, utype, deleted);
 895                 tclass.counters() = move(savecnt);
 896         }
 897 }
 898
 899
 900 void InsetText::toString(odocstream & os) const
 901 {
 902         os << text().asString(0, 1, AS_STR_LABEL | AS_STR_INSETS);
 903 }
 904
 905
 906 void InsetText::forOutliner(docstring & os, size_t const maxlen,
 907                                                         bool const shorten) const
 908 {
 909         if (!getLayout().isInToc())
 910                 return;
 911         text().forOutliner(os, maxlen, shorten);
 912 }
 913
 914
 915 void InsetText::addToToc(DocIterator const & cdit, bool output_active,
 916                                                  UpdateType utype, TocBackend & backend) const
 917 {
 918         DocIterator dit = cdit;
 919         dit.push_back(CursorSlice(const_cast<InsetText &>(*this)));
 920         iterateForToc(dit, output_active, utype, backend);
 921 }
 922
 923
 924 void InsetText::iterateForToc(DocIterator const & cdit, bool output_active,
 925                                                           UpdateType utype, TocBackend & backend) const
 926 {
 927         DocIterator dit = cdit;
 928         // This also ensures that any document has a table of contents
 929         shared_ptr<Toc> toc = backend.toc("tableofcontents");
 930
 931         BufferParams const & bufparams = buffer_->params();
 932         int const min_toclevel = bufparams.documentClass().min_toclevel();
 933         // we really should have done this before we got here, but it
 934         // can't hurt too much to do it again
 935         bool const doing_output = output_active && producesOutput();
 936
 937         // For each paragraph,
 938         // * Add a toc item for the paragraph if it is AddToToc--merging adjacent
 939         //   paragraphs as needed.
 940         // * Traverse its insets and let them add their toc items
 941         // * Compute the main table of contents (this is hardcoded)
 942         // * Add the list of changes
 943         ParagraphList const & pars = paragraphs();
 944         pit_type pend = paragraphs().size();
 945         // Record pairs {start,end} of where a toc item was opened for a paragraph
 946         // and where it must be closed
 947         stack<pair<pit_type, pit_type>> addtotoc_stack;
 948
 949         for (pit_type pit = 0; pit != pend; ++pit) {
 950                 Paragraph const & par = pars[pit];
 951                 dit.pit() = pit;
 952                 dit.pos() = 0;
 953
 954                 // Custom AddToToc in paragraph layouts (i.e. theorems)
 955                 if (par.layout().addToToc() && text().isFirstInSequence(pit)) {
 956                         pit_type end =
 957                                 openAddToTocForParagraph(pit, dit, output_active, backend);
 958                         addtotoc_stack.push({pit, end});
 959                 }
 960
 961                 // If we find an InsetArgument that is supposed to provide the TOC caption,
 962                 // we'll save it for use later.
 963                 InsetArgument const * arginset = nullptr;
 964                 for (auto const & table : par.insetList()) {
 965                         dit.pos() = table.pos;
 966                         table.inset->addToToc(dit, doing_output, utype, backend);
 967                         if (InsetArgument const * x = table.inset->asInsetArgument())
 968                                 if (x->isTocCaption())
 969                                         arginset = x;
 970                 }
 971
 972                 // End custom AddToToc in paragraph layouts
 973                 while (!addtotoc_stack.empty() && addtotoc_stack.top().second == pit) {
 974                         // execute the closing function
 975                         closeAddToTocForParagraph(addtotoc_stack.top().first,
 976                                                   addtotoc_stack.top().second, backend);
 977                         addtotoc_stack.pop();
 978                 }
 979
 980                 // now the toc entry for the paragraph in the main table of contents
 981                 int const toclevel = text().getTocLevel(pit);
 982                 if (toclevel != Layout::NOT_IN_TOC && toclevel >= min_toclevel) {
 983                         // insert this into the table of contents
 984                         docstring tocstring;
 985                         int const length = (doing_output && utype == OutputUpdate) ?
 986                                 INT_MAX : TOC_ENTRY_LENGTH;
 987                         if (arginset) {
 988                                 tocstring = par.labelString();
 989                                 if (!tocstring.empty())
 990                                         tocstring += ' ';
 991                                 arginset->text().forOutliner(tocstring, length);
 992                         } else
 993                                 par.forOutliner(tocstring, length);
 994                         dit.pos() = 0;
 995                         toc->push_back(TocItem(dit, toclevel - min_toclevel,
 996                                                tocstring, doing_output));
 997                 }
 998
 999                 // And now the list of changes.
1000                 par.addChangesToToc(dit, buffer(), doing_output, backend);
1001         }
1002 }
1003
1004
1005 pit_type InsetText::openAddToTocForParagraph(pit_type pit,
1006                                              DocIterator const & dit,
1007                                              bool output_active,
1008                                              TocBackend & backend) const
1009 {
1010         Paragraph const & par = paragraphs()[pit];
1011         TocBuilder & b = backend.builder(par.layout().tocType());
1012         docstring const label = par.labelString();
1013         b.pushItem(dit, label + (label.empty() ? "" : " "), output_active);
1014         return text().lastInSequence(pit);
1015 }
1016
1017
1018 void InsetText::closeAddToTocForParagraph(pit_type start, pit_type end,
1019                                           TocBackend & backend) const
1020 {
1021         Paragraph const & par = paragraphs()[start];
1022         TocBuilder & b = backend.builder(par.layout().tocType());
1023         if (par.layout().isTocCaption()) {
1024                 docstring str;
1025                 text().forOutliner(str, TOC_ENTRY_LENGTH, start, end);
1026                 b.argumentItem(str);
1027         }
1028         b.pop();
1029 }
1030
1031
1032 bool InsetText::notifyCursorLeaves(Cursor const & old, Cursor & cur)
1033 {
1034         if (buffer().isClean())
1035                 return Inset::notifyCursorLeaves(old, cur);
1036
1037         // find text inset in old cursor
1038         Cursor insetCur = old;
1039         int scriptSlice = insetCur.find(this);
1040         // we can try to continue here. returning true means
1041         // the cursor is "now" invalid. which it was.
1042         LASSERT(scriptSlice != -1, return true);
1043         insetCur.cutOff(scriptSlice);
1044         LASSERT(&insetCur.inset() == this, return true);
1045
1046         // update the old paragraph's words
1047         insetCur.paragraph().updateWords();
1048
1049         return Inset::notifyCursorLeaves(old, cur);
1050 }
1051
1052
1053 bool InsetText::completionSupported(Cursor const & cur) const
1054 {
1055         //LASSERT(&cur.bv().cursor().inset() == this, return false);
1056         return text_.completionSupported(cur);
1057 }
1058
1059
1060 bool InsetText::inlineCompletionSupported(Cursor const & cur) const
1061 {
1062         return completionSupported(cur);
1063 }
1064
1065
1066 bool InsetText::automaticInlineCompletion() const
1067 {
1068         return lyxrc.completion_inline_text;
1069 }
1070
1071
1072 bool InsetText::automaticPopupCompletion() const
1073 {
1074         return lyxrc.completion_popup_text;
1075 }
1076
1077
1078 bool InsetText::showCompletionCursor() const
1079 {
1080         return lyxrc.completion_cursor_text;
1081 }
1082
1083
1084 CompletionList const * InsetText::createCompletionList(Cursor const & cur) const
1085 {
1086         return completionSupported(cur) ? text_.createCompletionList(cur) : 0;
1087 }
1088
1089
1090 docstring InsetText::completionPrefix(Cursor const & cur) const
1091 {
1092         if (!completionSupported(cur))
1093                 return docstring();
1094         return text_.completionPrefix(cur);
1095 }
1096
1097
1098 bool InsetText::insertCompletion(Cursor & cur, docstring const & s,
1099         bool finished)
1100 {
1101         if (!completionSupported(cur))
1102                 return false;
1103
1104         return text_.insertCompletion(cur, s, finished);
1105 }
1106
1107
1108 void InsetText::completionPosAndDim(Cursor const & cur, int & x, int & y,
1109         Dimension & dim) const
1110 {
1111         TextMetrics const & tm = cur.bv().textMetrics(&text_);
1112         tm.completionPosAndDim(cur, x, y, dim);
1113 }
1114
1115
1116 string InsetText::contextMenu(BufferView const &, int, int) const
1117 {
1118         string context_menu = contextMenuName();
1119         if (context_menu != InsetText::contextMenuName())
1120                 context_menu += ";" + InsetText::contextMenuName();
1121         return context_menu;
1122 }
1123
1124
1125 string InsetText::contextMenuName() const
1126 {
1127         return "context-edit";
1128 }
1129
1130
1131 docstring InsetText::toolTipText(docstring prefix, size_t const len) const
1132 {
1133         OutputParams rp(&buffer().params().encoding());
1134         rp.for_tooltip = true;
1135         odocstringstream oss;
1136         oss << prefix;
1137
1138         ParagraphList::const_iterator beg = paragraphs().begin();
1139         ParagraphList::const_iterator end = paragraphs().end();
1140         ParagraphList::const_iterator it = beg;
1141         bool ref_printed = false;
1142
1143         for (; it != end; ++it) {
1144                 if (it != beg)
1145                         oss << '\n';
1146                 if ((*it).isRTL(buffer().params()))
1147                         oss << "<div dir=\"rtl\">";
1148                 writePlaintextParagraph(buffer(), *it, oss, rp, ref_printed, len);
1149                 if (oss.tellp() >= 0 && size_t(oss.tellp()) > len)
1150                         break;
1151         }
1152         docstring str = oss.str();
1153         if (isChanged())
1154                 str += from_ascii("\n\n") + _("[contains tracked changes]");
1155         support::truncateWithEllipsis(str, len);
1156         return str;
1157 }
1158
1159
1160 InsetText::XHTMLOptions operator|(InsetText::XHTMLOptions a1, InsetText::XHTMLOptions a2)
1161 {
1162         return static_cast<InsetText::XHTMLOptions>((int)a1 | (int)a2);
1163 }
1164
1165
1166 bool InsetText::needsCProtection(bool const maintext, bool const fragile) const
1167 {
1168         // Nested cprotect content needs \cprotect
1169         // on each level
1170         if (producesOutput() && hasCProtectContent(fragile))
1171                 return true;
1172
1173         // Environments generally need cprotection in fragile context
1174         if (fragile && getLayout().latextype() == InsetLayout::ENVIRONMENT)
1175                 return true;
1176
1177         if (!getLayout().needsCProtect())
1178                 return false;
1179
1180         // Environments and "no latex" types (e.g., knitr chunks)
1181         // need cprotection regardless the content
1182         if (!maintext && getLayout().latextype() != InsetLayout::COMMAND)
1183                 return true;
1184
1185         // If the inset does not produce output (e.g. Note or Branch),
1186         // we can ignore the contained paragraphs
1187         if (!producesOutput())
1188                 return false;
1189
1190         // Commands need cprotection if they contain specific chars
1191         int const nchars_escape = 9;
1192         static char_type const chars_escape[nchars_escape] = {
1193                 '&', '_', '$', '%', '#', '^', '{', '}', '\\'};
1194
1195         ParagraphList const & pars = paragraphs();
1196         pit_type pend = pit_type(paragraphs().size());
1197
1198         for (pit_type pit = 0; pit != pend; ++pit) {
1199                 Paragraph const & par = pars[size_type(pit)];
1200                 if (par.needsCProtection(fragile))
1201                         return true;
1202                 docstring const par_str = par.asString();
1203                 for (int k = 0; k < nchars_escape; k++) {
1204                         if (contains(par_str, chars_escape[k]))
1205                                 return true;
1206                 }
1207         }
1208         return false;
1209 }
1210
1211 } // namespace lyx