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1 /**
2  * \file InsetInclude.cpp
3  * This file is part of LyX, the document processor.
4  * Licence details can be found in the file COPYING.
5  *
6  * \author Lars Gullik Bjønnes
7  * \author Richard Heck (conversion to InsetCommand)
8  *
9  * Full author contact details are available in file CREDITS.
10  */
11
12 #include <config.h>
13
14 #include "InsetInclude.h"
15
16 #include "Buffer.h"
17 #include "buffer_funcs.h"
18 #include "BufferList.h"
19 #include "BufferParams.h"
20 #include "BufferView.h"
21 #include "Converter.h"
22 #include "Cursor.h"
23 #include "DispatchResult.h"
24 #include "Encoding.h"
25 #include "ErrorList.h"
26 #include "Exporter.h"
27 #include "Format.h"
28 #include "FuncRequest.h"
29 #include "FuncStatus.h"
30 #include "LaTeXFeatures.h"
31 #include "LayoutFile.h"
32 #include "LayoutModuleList.h"
33 #include "LyX.h"
34 #include "LyXRC.h"
35 #include "Lexer.h"
36 #include "MetricsInfo.h"
37 #include "output_plaintext.h"
38 #include "output_xhtml.h"
39 #include "OutputParams.h"
40 #include "TextClass.h"
41 #include "TocBackend.h"
42
43 #include "frontends/alert.h"
44 #include "frontends/Painter.h"
45
46 #include "graphics/PreviewImage.h"
47 #include "graphics/PreviewLoader.h"
48
49 #include "insets/InsetLabel.h"
50 #include "insets/InsetListingsParams.h"
51 #include "insets/RenderPreview.h"
52
53 #include "mathed/MacroTable.h"
54
55 #include "support/convert.h"
56 #include "support/debug.h"
57 #include "support/docstream.h"
58 #include "support/FileNameList.h"
59 #include "support/filetools.h"
60 #include "support/gettext.h"
61 #include "support/lassert.h"
62 #include "support/lstrings.h" // contains
63 #include "support/lyxalgo.h"
64
65 #include "support/bind.h"
66
67 using namespace std;
68 using namespace lyx::support;
69
70 namespace lyx {
71
72 namespace Alert = frontend::Alert;
73
74
75 namespace {
76
77 docstring const uniqueID()
78 {
79         static unsigned int seed = 1000;
80         return "file" + convert<docstring>(++seed);
81 }
82
83
84 /// the type of inclusion
85 enum Types {
86         INCLUDE, VERB, INPUT, VERBAST, LISTINGS, NONE
87 };
88
89
90 Types type(string const & s)
91 {
92         if (s == "input")
93                 return INPUT;
94         if (s == "verbatiminput")
95                 return VERB;
96         if (s == "verbatiminput*")
97                 return VERBAST;
98         if (s == "lstinputlisting")
99                 return LISTINGS;
100         if (s == "include")
101                 return INCLUDE;
102         return NONE;
103 }
104
105
106 Types type(InsetCommandParams const & params)
107 {
108         return type(params.getCmdName());
109 }
110
111
112 bool isListings(InsetCommandParams const & params)
113 {
114         return type(params) == LISTINGS;
115 }
116
117
118 bool isVerbatim(InsetCommandParams const & params)
119 {
120         Types const t = type(params);
121         return t == VERB || t == VERBAST;
122 }
123
124
125 bool isInputOrInclude(InsetCommandParams const & params)
126 {
127         Types const t = type(params);
128         return t == INPUT || t == INCLUDE;
129 }
130
131
132 FileName const masterFileName(Buffer const & buffer)
133 {
134         return buffer.masterBuffer()->fileName();
135 }
136
137
138 void add_preview(RenderMonitoredPreview &, InsetInclude const &, Buffer const &);
139
140
141 string const parentFileName(Buffer const & buffer)
142 {
143         return buffer.absFileName();
144 }
145
146
147 FileName const includedFileName(Buffer const & buffer,
148                               InsetCommandParams const & params)
149 {
150         return makeAbsPath(to_utf8(params["filename"]),
151                         onlyPath(parentFileName(buffer)));
152 }
153
154
155 InsetLabel * createLabel(Buffer * buf, docstring const & label_str)
156 {
157         if (label_str.empty())
158                 return 0;
159         InsetCommandParams icp(LABEL_CODE);
160         icp["name"] = label_str;
161         return new InsetLabel(buf, icp);
162 }
163
164 } // namespace anon
165
166
167 InsetInclude::InsetInclude(Buffer * buf, InsetCommandParams const & p)
168         : InsetCommand(buf, p), include_label(uniqueID()),
169           preview_(new RenderMonitoredPreview(this)), failedtoload_(false),
170           set_label_(false), label_(0), child_buffer_(0)
171 {
172         preview_->fileChanged(bind(&InsetInclude::fileChanged, this));
173
174         if (isListings(params())) {
175                 InsetListingsParams listing_params(to_utf8(p["lstparams"]));
176                 label_ = createLabel(buffer_, from_utf8(listing_params.getParamValue("label")));
177         } else if (isInputOrInclude(params()) && buf)
178                 loadIfNeeded();
179 }
180
181
182 InsetInclude::InsetInclude(InsetInclude const & other)
183         : InsetCommand(other), include_label(other.include_label),
184           preview_(new RenderMonitoredPreview(this)), failedtoload_(false),
185           set_label_(false), label_(0), child_buffer_(0)
186 {
187         preview_->fileChanged(bind(&InsetInclude::fileChanged, this));
188
189         if (other.label_)
190                 label_ = new InsetLabel(*other.label_);
191 }
192
193
194 InsetInclude::~InsetInclude()
195 {
196         if (isBufferLoaded())
197                 buffer().invalidateBibfileCache();
198         delete label_;
199 }
200
201
202 void InsetInclude::setBuffer(Buffer & buffer)
203 {
204         InsetCommand::setBuffer(buffer);
205         if (label_)
206                 label_->setBuffer(buffer);
207 }
208
209
210 void InsetInclude::setChildBuffer(Buffer * buffer)
211 {
212         child_buffer_ = buffer;
213 }
214
215
216 ParamInfo const & InsetInclude::findInfo(string const & /* cmdName */)
217 {
218         // FIXME
219         // This is only correct for the case of listings, but it'll do for now.
220         // In the other cases, this second parameter should just be empty.
221         static ParamInfo param_info_;
222         if (param_info_.empty()) {
223                 param_info_.add("filename", ParamInfo::LATEX_REQUIRED);
224                 param_info_.add("lstparams", ParamInfo::LATEX_OPTIONAL);
225         }
226         return param_info_;
227 }
228
229
230 bool InsetInclude::isCompatibleCommand(string const & s)
231 {
232         return type(s) != NONE;
233 }
234
235
236 void InsetInclude::doDispatch(Cursor & cur, FuncRequest & cmd)
237 {
238         switch (cmd.action()) {
239
240         case LFUN_INSET_EDIT: {
241                 editIncluded(to_utf8(params()["filename"]));
242                 break;
243         }
244
245         case LFUN_INSET_MODIFY: {
246                 // It should be OK just to invalidate the cache in setParams()
247                 // If not....
248                 // child_buffer_ = 0;
249                 InsetCommandParams p(INCLUDE_CODE);
250                 if (cmd.getArg(0) == "changetype") {
251                         cur.recordUndo();
252                         InsetCommand::doDispatch(cur, cmd);
253                         p = params();
254                 } else
255                         InsetCommand::string2params(to_utf8(cmd.argument()), p);
256                 if (!p.getCmdName().empty()) {
257                         if (isListings(p)){
258                                 InsetListingsParams new_params(to_utf8(p["lstparams"]));
259                                 docstring const new_label =
260                                         from_utf8(new_params.getParamValue("label"));
261                                 
262                                 if (new_label.empty()) {
263                                         delete label_;
264                                         label_ = 0;
265                                 } else {
266                                         docstring old_label;
267                                         if (label_) 
268                                                 old_label = label_->getParam("name");
269                                         else {
270                                                 label_ = createLabel(buffer_, new_label);
271                                                 label_->setBuffer(buffer());
272                                         }                                       
273
274                                         if (new_label != old_label) {
275                                                 label_->updateLabelAndRefs(new_label, &cur);
276                                                 // the label might have been adapted (duplicate)
277                                                 if (new_label != label_->getParam("name")) {
278                                                         new_params.addParam("label", "{" + 
279                                                                 to_utf8(label_->getParam("name")) + "}", true);
280                                                         p["lstparams"] = from_utf8(new_params.params());
281                                                 }
282                                         }
283                                 }
284                         }
285                         cur.recordUndo();
286                         setParams(p);
287                         cur.forceBufferUpdate();
288                 } else
289                         cur.noScreenUpdate();
290                 break;
291         }
292
293         //pass everything else up the chain
294         default:
295                 InsetCommand::doDispatch(cur, cmd);
296                 break;
297         }
298 }
299
300
301 void InsetInclude::editIncluded(string const & file)
302 {
303         string const ext = support::getExtension(file);
304         if (ext == "lyx") {
305                 FuncRequest fr(LFUN_BUFFER_CHILD_OPEN, file);
306                 lyx::dispatch(fr);
307         } else
308                 // tex file or other text file in verbatim mode
309                 formats.edit(buffer(),
310                         support::makeAbsPath(file, support::onlyPath(buffer().absFileName())),
311                         "text");
312 }
313
314
315 bool InsetInclude::getStatus(Cursor & cur, FuncRequest const & cmd,
316                 FuncStatus & flag) const
317 {
318         switch (cmd.action()) {
319
320         case LFUN_INSET_EDIT:
321                 flag.setEnabled(true);
322                 return true;
323
324         case LFUN_INSET_MODIFY:
325                 if (cmd.getArg(0) == "changetype")
326                         return InsetCommand::getStatus(cur, cmd, flag);
327                 else
328                         flag.setEnabled(true);
329                 return true;
330
331         default:
332                 return InsetCommand::getStatus(cur, cmd, flag);
333         }
334 }
335
336
337 void InsetInclude::setParams(InsetCommandParams const & p)
338 {
339         // invalidate the cache
340         child_buffer_ = 0;
341
342         InsetCommand::setParams(p);
343         set_label_ = false;
344
345         if (preview_->monitoring())
346                 preview_->stopMonitoring();
347
348         if (type(params()) == INPUT)
349                 add_preview(*preview_, *this, buffer());
350
351         buffer().invalidateBibfileCache();
352 }
353
354
355 bool InsetInclude::isChildIncluded() const
356 {
357         std::list<std::string> includeonlys =
358                 buffer().params().getIncludedChildren();
359         if (includeonlys.empty())
360                 return true;
361         return (std::find(includeonlys.begin(),
362                           includeonlys.end(),
363                           to_utf8(params()["filename"])) != includeonlys.end());
364 }
365
366
367 docstring InsetInclude::screenLabel() const
368 {
369         docstring temp;
370
371         switch (type(params())) {
372                 case INPUT:
373                         temp = buffer().B_("Input");
374                         break;
375                 case VERB:
376                         temp = buffer().B_("Verbatim Input");
377                         break;
378                 case VERBAST:
379                         temp = buffer().B_("Verbatim Input*");
380                         break;
381                 case INCLUDE:
382                         if (isChildIncluded())
383                                 temp = buffer().B_("Include");
384                         else
385                                 temp += buffer().B_("Include (excluded)");
386                         break;
387                 case LISTINGS:
388                         temp = listings_label_;
389                         break;
390                 case NONE:
391                         LASSERT(false, /**/);
392         }
393
394         temp += ": ";
395
396         if (params()["filename"].empty())
397                 temp += "???";
398         else
399                 temp += from_utf8(onlyFileName(to_utf8(params()["filename"])));
400
401         return temp;
402 }
403
404
405 Buffer * InsetInclude::getChildBuffer() const
406 {
407         Buffer * childBuffer = loadIfNeeded(); 
408
409         // FIXME: recursive includes
410         return (childBuffer == &buffer()) ? 0 : childBuffer;
411 }
412
413
414 Buffer * InsetInclude::loadIfNeeded() const
415 {
416         // This is for background export and preview. We don't even want to
417         // try to load the cloned child document again.
418         if (buffer().isClone())
419                 return child_buffer_;
420         
421         // Don't try to load it again if we failed before.
422         if (failedtoload_ || isVerbatim(params()) || isListings(params()))
423                 return 0;
424
425         FileName const included_file = includedFileName(buffer(), params());
426         // Use cached Buffer if possible.
427         if (child_buffer_ != 0) {
428                 if (theBufferList().isLoaded(child_buffer_)
429                 // additional sanity check: make sure the Buffer really is
430                     // associated with the file we want.
431                     && child_buffer_ == theBufferList().getBuffer(included_file))
432                         return child_buffer_;
433                 // Buffer vanished, so invalidate cache and try to reload.
434                 child_buffer_ = 0;
435         }
436
437         if (!isLyXFileName(included_file.absFileName()))
438                 return 0;
439
440         Buffer * child = theBufferList().getBuffer(included_file);
441         if (!child) {
442                 // the readonly flag can/will be wrong, not anymore I think.
443                 if (!included_file.exists())
444                         return 0;
445
446                 child = theBufferList().newBuffer(included_file.absFileName());
447                 if (!child)
448                         // Buffer creation is not possible.
449                         return 0;
450
451                 // Set parent before loading, such that macros can be tracked
452                 child->setParent(&buffer());
453
454                 if (child->loadLyXFile() != Buffer::ReadSuccess) {
455                         failedtoload_ = true;
456                         child->setParent(0);
457                         //close the buffer we just opened
458                         theBufferList().release(child);
459                         return 0;
460                 }
461
462                 if (!child->errorList("Parse").empty()) {
463                         // FIXME: Do something.
464                 }
465         } else {
466                 // The file was already loaded, so, simply
467                 // inform parent buffer about local macros.
468                 Buffer const * parent = &buffer();
469                 child->setParent(parent);
470                 MacroNameSet macros;
471                 child->listMacroNames(macros);
472                 MacroNameSet::const_iterator cit = macros.begin();
473                 MacroNameSet::const_iterator end = macros.end();
474                 for (; cit != end; ++cit)
475                         parent->usermacros.insert(*cit);
476         }
477
478         // Cache the child buffer.
479         child_buffer_ = child;
480         return child;
481 }
482
483
484 void InsetInclude::latex(otexstream & os, OutputParams const & runparams) const
485 {
486         string incfile = to_utf8(params()["filename"]);
487
488         // Do nothing if no file name has been specified
489         if (incfile.empty())
490                 return;
491
492         FileName const included_file = includedFileName(buffer(), params());
493
494         // Check we're not trying to include ourselves.
495         // FIXME RECURSIVE INCLUDE
496         // This isn't sufficient, as the inclusion could be downstream.
497         // But it'll have to do for now.
498         if (isInputOrInclude(params()) &&
499                 buffer().absFileName() == included_file.absFileName())
500         {
501                 Alert::error(_("Recursive input"),
502                                bformat(_("Attempted to include file %1$s in itself! "
503                                "Ignoring inclusion."), from_utf8(incfile)));
504                 return;
505         }
506
507         Buffer const * const masterBuffer = buffer().masterBuffer();
508
509         // if incfile is relative, make it relative to the master
510         // buffer directory.
511         if (!FileName::isAbsolute(incfile)) {
512                 // FIXME UNICODE
513                 incfile = to_utf8(makeRelPath(from_utf8(included_file.absFileName()),
514                                               from_utf8(masterBuffer->filePath())));
515         }
516
517         string exppath = incfile;
518         if (!runparams.export_folder.empty()) {
519                 exppath = makeAbsPath(exppath, runparams.export_folder).realPath();
520                 FileName(exppath).onlyPath().createPath();
521         }
522
523         // write it to a file (so far the complete file)
524         string exportfile;
525         string mangled;
526         // bug 5681
527         if (type(params()) == LISTINGS) {
528                 exportfile = exppath;
529                 mangled = DocFileName(included_file).mangledFileName();
530         } else {
531                 exportfile = changeExtension(exppath, ".tex");
532                 mangled = DocFileName(changeExtension(included_file.absFileName(), ".tex")).
533                         mangledFileName();
534         }
535
536         FileName const writefile(makeAbsPath(mangled, masterBuffer->temppath()));
537
538         if (!runparams.nice)
539                 incfile = mangled;
540         else if (!isValidLaTeXFileName(incfile)) {
541                 frontend::Alert::warning(_("Invalid filename"),
542                         _("The following filename will cause troubles "
543                           "when running the exported file through LaTeX: ") +
544                         from_utf8(incfile));
545         }
546         else if (!isValidDVIFileName(incfile)) {
547                 frontend::Alert::warning(_("Problematic filename for DVI"),
548                         _("The following filename can cause troubles "
549                           "when running the exported file through LaTeX "
550                           "and opening the resulting DVI: ") +
551                         from_utf8(incfile), true);
552         }
553         LYXERR(Debug::LATEX, "incfile:" << incfile);
554         LYXERR(Debug::LATEX, "exportfile:" << exportfile);
555         LYXERR(Debug::LATEX, "writefile:" << writefile);
556
557         string const tex_format = flavor2format(runparams.flavor);
558         if (runparams.inComment || runparams.dryrun) {
559                 //Don't try to load or copy the file if we're
560                 //in a comment or doing a dryrun
561         } else if (isInputOrInclude(params()) &&
562                  isLyXFileName(included_file.absFileName())) {
563                 // if it's a LyX file and we're inputting or including,
564                 // try to load it so we can write the associated latex
565
566                 Buffer * tmp = loadIfNeeded();
567                 if (!tmp) {
568                         docstring text = bformat(_("Could not load included "
569                                 "file\n`%1$s'\n"
570                                 "Please, check whether it actually exists."),
571                                 included_file.displayName());
572                         Alert::warning(_("Missing included file"), text);
573                         return;
574                 }
575
576                 if (tmp->params().baseClass() != masterBuffer->params().baseClass()) {
577                         // FIXME UNICODE
578                         docstring text = bformat(_("Included file `%1$s'\n"
579                                 "has textclass `%2$s'\n"
580                                 "while parent file has textclass `%3$s'."),
581                                 included_file.displayName(),
582                                 from_utf8(tmp->params().documentClass().name()),
583                                 from_utf8(masterBuffer->params().documentClass().name()));
584                         Alert::warning(_("Different textclasses"), text, true);
585                 }
586
587                 // Make sure modules used in child are all included in master
588                 // FIXME It might be worth loading the children's modules into the master
589                 // over in BufferParams rather than doing this check.
590                 LayoutModuleList const masterModules = masterBuffer->params().getModules();
591                 LayoutModuleList const childModules = tmp->params().getModules();
592                 LayoutModuleList::const_iterator it = childModules.begin();
593                 LayoutModuleList::const_iterator end = childModules.end();
594                 for (; it != end; ++it) {
595                         string const module = *it;
596                         LayoutModuleList::const_iterator found =
597                                 find(masterModules.begin(), masterModules.end(), module);
598                         if (found == masterModules.end()) {
599                                 docstring text = bformat(_("Included file `%1$s'\n"
600                                         "uses module `%2$s'\n"
601                                         "which is not used in parent file."),
602                                         included_file.displayName(), from_utf8(module));
603                                 Alert::warning(_("Module not found"), text);
604                         }
605                 }
606
607                 tmp->markDepClean(masterBuffer->temppath());
608
609                 // Don't assume the child's format is latex
610                 string const inc_format = tmp->params().bufferFormat();
611                 FileName const tmpwritefile(changeExtension(writefile.absFileName(),
612                         formats.extension(inc_format)));
613
614                 // FIXME: handle non existing files
615                 // The included file might be written in a different encoding
616                 // and language.
617                 Encoding const * const oldEnc = runparams.encoding;
618                 Language const * const oldLang = runparams.master_language;
619                 // If the master has full unicode flavor (XeTeX, LuaTeX),
620                 // the children must be encoded in plain utf8!
621                 runparams.encoding = runparams.isFullUnicode() ?
622                         encodings.fromLyXName("utf8-plain")
623                         : &tmp->params().encoding();
624                 runparams.master_language = buffer().params().language;
625                 runparams.par_begin = 0;
626                 runparams.par_end = tmp->paragraphs().size();
627                 if (!tmp->makeLaTeXFile(tmpwritefile, masterFileName(buffer()).
628                                 onlyPath().absFileName(), runparams, Buffer::OnlyBody)) {
629                         docstring msg = bformat(_("Included file `%1$s' "
630                                         "was not exported correctly.\nWarning: "
631                                         "LaTeX export is probably incomplete."),
632                                         included_file.displayName());
633                         ErrorList const & el = tmp->errorList("Export");
634                         if (!el.empty())
635                                 msg = bformat(from_ascii("%1$s\n\n%2$s\n\n%3$s"),
636                                                 msg, el.begin()->error,
637                                                 el.begin()->description);
638                         Alert::warning(_("Export failure"), msg);
639                 }
640                 runparams.encoding = oldEnc;
641                 runparams.master_language = oldLang;
642
643                 // If needed, use converters to produce a latex file from the child
644                 if (tmpwritefile != writefile) {
645                         ErrorList el;
646                         bool const success =
647                                 theConverters().convert(tmp, tmpwritefile, writefile,
648                                                         included_file,
649                                                         inc_format, tex_format, el);
650
651                         if (!success) {
652                                 docstring msg = bformat(_("Included file `%1$s' "
653                                                 "was not exported correctly.\nWarning: "
654                                                 "LaTeX export is probably incomplete."),
655                                                 included_file.displayName());
656                                 if (!el.empty())
657                                         msg = bformat(from_ascii("%1$s\n\n%2$s\n\n%3$s"),
658                                                         msg, el.begin()->error,
659                                                         el.begin()->description);
660                                 Alert::warning(_("Export failure"), msg);
661                         }
662                 }
663         } else {
664                 // In this case, it's not a LyX file, so we copy the file
665                 // to the temp dir, so that .aux files etc. are not created
666                 // in the original dir. Files included by this file will be
667                 // found via either the environment variable TEXINPUTS, or
668                 // input@path, see ../Buffer.cpp.
669                 unsigned long const checksum_in  = included_file.checksum();
670                 unsigned long const checksum_out = writefile.checksum();
671
672                 if (checksum_in != checksum_out) {
673                         if (!included_file.copyTo(writefile)) {
674                                 // FIXME UNICODE
675                                 LYXERR(Debug::LATEX,
676                                         to_utf8(bformat(_("Could not copy the file\n%1$s\n"
677                                                                   "into the temporary directory."),
678                                                    from_utf8(included_file.absFileName()))));
679                                 return;
680                         }
681                 }
682         }
683
684         switch (type(params())) {
685         case VERB:
686         case VERBAST: {
687                 incfile = latex_path(incfile);
688                 // FIXME UNICODE
689                 os << '\\' << from_ascii(params().getCmdName()) << '{'
690                    << from_utf8(incfile) << '}';
691                 break;
692         } 
693         case INPUT: {
694                 runparams.exportdata->addExternalFile(tex_format, writefile,
695                                                       exportfile);
696
697                 // \input wants file with extension (default is .tex)
698                 if (!isLyXFileName(included_file.absFileName())) {
699                         incfile = latex_path(incfile);
700                         // FIXME UNICODE
701                         os << '\\' << from_ascii(params().getCmdName())
702                            << '{' << from_utf8(incfile) << '}';
703                 } else {
704                         incfile = changeExtension(incfile, ".tex");
705                         incfile = latex_path(incfile);
706                         // FIXME UNICODE
707                         os << '\\' << from_ascii(params().getCmdName())
708                            << '{' << from_utf8(incfile) <<  '}';
709                 }
710                 break;
711         } 
712         case LISTINGS: {
713                 runparams.exportdata->addExternalFile(tex_format, writefile,
714                                                       exportfile);
715                 os << '\\' << from_ascii(params().getCmdName());
716                 string const opt = to_utf8(params()["lstparams"]);
717                 // opt is set in QInclude dialog and should have passed validation.
718                 InsetListingsParams params(opt);
719                 if (!params.params().empty())
720                         os << "[" << from_utf8(params.params()) << "]";
721                 os << '{'  << from_utf8(incfile) << '}';
722                 break;
723         } 
724         case INCLUDE: {
725                 runparams.exportdata->addExternalFile(tex_format, writefile,
726                                                       exportfile);
727
728                 // \include don't want extension and demands that the
729                 // file really have .tex
730                 incfile = changeExtension(incfile, string());
731                 incfile = latex_path(incfile);
732                 // FIXME UNICODE
733                 os << '\\' << from_ascii(params().getCmdName()) << '{'
734                    << from_utf8(incfile) << '}';
735                 break;
736         }
737         case NONE:
738                 break;
739         }
740 }
741
742
743 docstring InsetInclude::xhtml(XHTMLStream & xs, OutputParams const & rp) const
744 {
745         if (rp.inComment)
746                  return docstring();
747
748         // For verbatim and listings, we just include the contents of the file as-is.
749         // In the case of listings, we wrap it in <pre>.
750         bool const listing = isListings(params());
751         if (listing || isVerbatim(params())) {
752                 if (listing)
753                         xs << html::StartTag("pre");
754                 // FIXME: We don't know the encoding of the file, default to UTF-8.
755                 xs << includedFileName(buffer(), params()).fileContents("UTF-8");
756                 if (listing)
757                         xs << html::EndTag("pre");
758                 return docstring();
759         }
760
761         // We don't (yet) know how to Input or Include non-LyX files.
762         // (If we wanted to get really arcane, we could run some tex2html
763         // converter on the included file. But that's just masochistic.)
764         FileName const included_file = includedFileName(buffer(), params());
765         if (!isLyXFileName(included_file.absFileName())) {
766                 frontend::Alert::warning(_("Unsupported Inclusion"),
767                                          bformat(_("LyX does not know how to include non-LyX files when "
768                                                    "generating HTML output. Offending file:\n%1$s"),
769                                                     params()["filename"]));
770                 return docstring();
771         }
772
773         // In the other cases, we will generate the HTML and include it.
774
775         // Check we're not trying to include ourselves.
776         // FIXME RECURSIVE INCLUDE
777         if (buffer().absFileName() == included_file.absFileName()) {
778                 Alert::error(_("Recursive input"),
779                                bformat(_("Attempted to include file %1$s in itself! "
780                                "Ignoring inclusion."), params()["filename"]));
781                 return docstring();
782         }
783
784         Buffer const * const ibuf = loadIfNeeded();
785         if (!ibuf)
786                 return docstring();
787
788         // are we generating only some paragraphs, or all of them?
789         bool const all_pars = !rp.dryrun || 
790                         (rp.par_begin == 0 && 
791                          rp.par_end == (int)buffer().text().paragraphs().size());
792         
793         OutputParams op = rp;
794         if (all_pars) {
795                 op.par_begin = 0;
796                 op.par_end = 0;
797                 ibuf->writeLyXHTMLSource(xs.os(), op, Buffer::IncludedFile);
798         } else
799                 xs << XHTMLStream::ESCAPE_NONE 
800                    << "<!-- Included file: " 
801                    << from_utf8(included_file.absFileName()) 
802                    << XHTMLStream::ESCAPE_NONE 
803                          << " -->";
804         return docstring();
805 }
806
807
808 int InsetInclude::plaintext(odocstream & os, OutputParams const & op) const
809 {
810         if (isVerbatim(params()) || isListings(params())) {
811                 os << '[' << screenLabel() << '\n';
812                 // FIXME: We don't know the encoding of the file, default to UTF-8.
813                 os << includedFileName(buffer(), params()).fileContents("UTF-8");
814                 os << "\n]";
815                 return PLAINTEXT_NEWLINE + 1; // one char on a separate line
816         }
817
818         Buffer const * const ibuf = loadIfNeeded();
819         if (!ibuf) {
820                 docstring const str = '[' + screenLabel() + ']';
821                 os << str;
822                 return str.size();
823         }
824         writePlaintextFile(*ibuf, os, op);
825         return 0;
826 }
827
828
829 int InsetInclude::docbook(odocstream & os, OutputParams const & runparams) const
830 {
831         string incfile = to_utf8(params()["filename"]);
832
833         // Do nothing if no file name has been specified
834         if (incfile.empty())
835                 return 0;
836
837         string const included_file = includedFileName(buffer(), params()).absFileName();
838
839         // Check we're not trying to include ourselves.
840         // FIXME RECURSIVE INCLUDE
841         // This isn't sufficient, as the inclusion could be downstream.
842         // But it'll have to do for now.
843         if (buffer().absFileName() == included_file) {
844                 Alert::error(_("Recursive input"),
845                                bformat(_("Attempted to include file %1$s in itself! "
846                                "Ignoring inclusion."), from_utf8(incfile)));
847                 return 0;
848         }
849
850         string exppath = incfile;
851         if (!runparams.export_folder.empty()) {
852                 exppath = makeAbsPath(exppath, runparams.export_folder).realPath();
853                 FileName(exppath).onlyPath().createPath();
854         }
855
856         // write it to a file (so far the complete file)
857         string const exportfile = changeExtension(exppath, ".sgml");
858         DocFileName writefile(changeExtension(included_file, ".sgml"));
859
860         Buffer * tmp = loadIfNeeded();
861         if (tmp) {
862                 string const mangled = writefile.mangledFileName();
863                 writefile = makeAbsPath(mangled,
864                                         buffer().masterBuffer()->temppath());
865                 if (!runparams.nice)
866                         incfile = mangled;
867
868                 LYXERR(Debug::LATEX, "incfile:" << incfile);
869                 LYXERR(Debug::LATEX, "exportfile:" << exportfile);
870                 LYXERR(Debug::LATEX, "writefile:" << writefile);
871
872                 tmp->makeDocBookFile(writefile, runparams, Buffer::OnlyBody);
873         }
874
875         runparams.exportdata->addExternalFile("docbook", writefile,
876                                               exportfile);
877         runparams.exportdata->addExternalFile("docbook-xml", writefile,
878                                               exportfile);
879
880         if (isVerbatim(params()) || isListings(params())) {
881                 os << "<inlinegraphic fileref=\""
882                    << '&' << include_label << ';'
883                    << "\" format=\"linespecific\">";
884         } else
885                 os << '&' << include_label << ';';
886
887         return 0;
888 }
889
890
891 void InsetInclude::validate(LaTeXFeatures & features) const
892 {
893         string incfile = to_utf8(params()["filename"]);
894         string writefile;
895
896         LASSERT(&buffer() == &features.buffer(), /**/);
897
898         string const included_file =
899                 includedFileName(buffer(), params()).absFileName();
900
901         if (isLyXFileName(included_file))
902                 writefile = changeExtension(included_file, ".sgml");
903         else
904                 writefile = included_file;
905
906         if (!features.runparams().nice && !isVerbatim(params()) && !isListings(params())) {
907                 incfile = DocFileName(writefile).mangledFileName();
908                 writefile = makeAbsPath(incfile,
909                                         buffer().masterBuffer()->temppath()).absFileName();
910         }
911
912         features.includeFile(include_label, writefile);
913
914         features.useInsetLayout(getLayout());
915         if (isVerbatim(params()))
916                 features.require("verbatim");
917         else if (isListings(params()))
918                 features.require("listings");
919
920         // Here we must do the fun stuff...
921         // Load the file in the include if it needs
922         // to be loaded:
923         Buffer * const tmp = loadIfNeeded();
924         if (tmp) {
925                 // the file is loaded
926                 // make sure the buffer isn't us
927                 // FIXME RECURSIVE INCLUDES
928                 // This is not sufficient, as recursive includes could be
929                 // more than a file away. But it will do for now.
930                 if (tmp && tmp != &buffer()) {
931                         // We must temporarily change features.buffer,
932                         // otherwise it would always be the master buffer,
933                         // and nested includes would not work.
934                         features.setBuffer(*tmp);
935                         tmp->validate(features);
936                         features.setBuffer(buffer());
937                 }
938         }
939 }
940
941
942 void InsetInclude::collectBibKeys(InsetIterator const & /*di*/) const
943 {
944         Buffer * child = loadIfNeeded();
945         if (!child)
946                 return;
947         child->collectBibKeys();
948 }
949
950
951 void InsetInclude::metrics(MetricsInfo & mi, Dimension & dim) const
952 {
953         LASSERT(mi.base.bv, /**/);
954
955         bool use_preview = false;
956         if (RenderPreview::status() != LyXRC::PREVIEW_OFF) {
957                 graphics::PreviewImage const * pimage =
958                         preview_->getPreviewImage(mi.base.bv->buffer());
959                 use_preview = pimage && pimage->image();
960         }
961
962         if (use_preview) {
963                 preview_->metrics(mi, dim);
964         } else {
965                 if (!set_label_) {
966                         set_label_ = true;
967                         button_.update(screenLabel(), true);
968                 }
969                 button_.metrics(mi, dim);
970         }
971
972         Box b(0, dim.wid, -dim.asc, dim.des);
973         button_.setBox(b);
974 }
975
976
977 void InsetInclude::draw(PainterInfo & pi, int x, int y) const
978 {
979         LASSERT(pi.base.bv, /**/);
980
981         bool use_preview = false;
982         if (RenderPreview::status() != LyXRC::PREVIEW_OFF) {
983                 graphics::PreviewImage const * pimage =
984                         preview_->getPreviewImage(pi.base.bv->buffer());
985                 use_preview = pimage && pimage->image();
986         }
987
988         if (use_preview)
989                 preview_->draw(pi, x, y);
990         else
991                 button_.draw(pi, x, y);
992 }
993
994
995 string InsetInclude::contextMenuName() const
996 {
997         return "context-include";
998 }
999
1000
1001 Inset::DisplayType InsetInclude::display() const
1002 {
1003         return type(params()) == INPUT ? Inline : AlignCenter;
1004 }
1005
1006
1007 docstring InsetInclude::layoutName() const
1008 {
1009         if (isListings(params()))
1010                 return from_ascii("IncludeListings");
1011         return InsetCommand::layoutName();
1012 }
1013
1014
1015 //
1016 // preview stuff
1017 //
1018
1019 void InsetInclude::fileChanged() const
1020 {
1021         Buffer const * const buffer = updateFrontend();
1022         if (!buffer)
1023                 return;
1024
1025         preview_->removePreview(*buffer);
1026         add_preview(*preview_.get(), *this, *buffer);
1027         preview_->startLoading(*buffer);
1028 }
1029
1030
1031 namespace {
1032
1033 bool preview_wanted(InsetCommandParams const & params, Buffer const & buffer)
1034 {
1035         FileName const included_file = includedFileName(buffer, params);
1036
1037         return type(params) == INPUT && params.preview() &&
1038                 included_file.isReadableFile();
1039 }
1040
1041
1042 docstring latexString(InsetInclude const & inset)
1043 {
1044         TexRow texrow;
1045         odocstringstream ods;
1046         otexstream os(ods, texrow);
1047         // We don't need to set runparams.encoding since this will be done
1048         // by latex() anyway.
1049         OutputParams runparams(0);
1050         runparams.flavor = OutputParams::LATEX;
1051         inset.latex(os, runparams);
1052
1053         return ods.str();
1054 }
1055
1056
1057 void add_preview(RenderMonitoredPreview & renderer, InsetInclude const & inset,
1058                  Buffer const & buffer)
1059 {
1060         InsetCommandParams const & params = inset.params();
1061         if (RenderPreview::status() != LyXRC::PREVIEW_OFF &&
1062             preview_wanted(params, buffer)) {
1063                 renderer.setAbsFile(includedFileName(buffer, params));
1064                 docstring const snippet = latexString(inset);
1065                 renderer.addPreview(snippet, buffer);
1066         }
1067 }
1068
1069 } // namespace anon
1070
1071
1072 void InsetInclude::addPreview(DocIterator const & /*inset_pos*/,
1073         graphics::PreviewLoader & ploader) const
1074 {
1075         Buffer const & buffer = ploader.buffer();
1076         if (!preview_wanted(params(), buffer))
1077                 return;
1078         preview_->setAbsFile(includedFileName(buffer, params()));
1079         docstring const snippet = latexString(*this);
1080         preview_->addPreview(snippet, ploader);
1081 }
1082
1083
1084 void InsetInclude::addToToc(DocIterator const & cpit) const
1085 {
1086         TocBackend & backend = buffer().tocBackend();
1087
1088         if (isListings(params())) {
1089                 if (label_)
1090                         label_->addToToc(cpit);
1091
1092                 InsetListingsParams p(to_utf8(params()["lstparams"]));
1093                 string caption = p.getParamValue("caption");
1094                 if (caption.empty())
1095                         return;
1096                 Toc & toc = backend.toc("listing");
1097                 docstring str = convert<docstring>(toc.size() + 1)
1098                         + ". " +  from_utf8(caption);
1099                 DocIterator pit = cpit;
1100                 toc.push_back(TocItem(pit, 0, str));
1101                 return;
1102         }
1103         Buffer const * const childbuffer = getChildBuffer();
1104         if (!childbuffer)
1105                 return;
1106
1107         Toc & toc = backend.toc("child");
1108         docstring str = childbuffer->fileName().displayName();
1109         toc.push_back(TocItem(cpit, 0, str));
1110
1111         TocList & toclist = backend.tocs();
1112         childbuffer->tocBackend().update();
1113         TocList const & childtoclist = childbuffer->tocBackend().tocs();
1114         TocList::const_iterator it = childtoclist.begin();
1115         TocList::const_iterator const end = childtoclist.end();
1116         for(; it != end; ++it)
1117                 toclist[it->first].insert(toclist[it->first].end(),
1118                         it->second.begin(), it->second.end());
1119 }
1120
1121
1122 void InsetInclude::updateCommand()
1123 {
1124         if (!label_)
1125                 return;
1126
1127         docstring old_label = label_->getParam("name");
1128         label_->updateLabel(old_label);
1129         // the label might have been adapted (duplicate)
1130         docstring new_label = label_->getParam("name");
1131         if (old_label == new_label)
1132                 return;
1133
1134         // update listings parameters...
1135         InsetCommandParams p(INCLUDE_CODE);
1136         p = params();
1137         InsetListingsParams par(to_utf8(params()["lstparams"]));
1138         par.addParam("label", "{" + to_utf8(new_label) + "}", true);
1139         p["lstparams"] = from_utf8(par.params());
1140         setParams(p);   
1141 }
1142
1143
1144 void InsetInclude::updateBuffer(ParIterator const & it, UpdateType utype)
1145 {
1146         button_.update(screenLabel(), true);
1147
1148         Buffer const * const childbuffer = getChildBuffer();
1149         if (childbuffer) {
1150                 childbuffer->updateBuffer(Buffer::UpdateChildOnly, utype);
1151                 return;
1152         }
1153         if (!isListings(params()))
1154                 return;
1155
1156         if (label_)
1157                 label_->updateBuffer(it, utype);
1158
1159         InsetListingsParams const par(to_utf8(params()["lstparams"]));
1160         if (par.getParamValue("caption").empty()) {
1161                 listings_label_ = buffer().B_("Program Listing");
1162                 return;
1163         }
1164         Buffer const & master = *buffer().masterBuffer();
1165         Counters & counters = master.params().documentClass().counters();
1166         docstring const cnt = from_ascii("listing");
1167         listings_label_ = master.B_("Program Listing");
1168         if (counters.hasCounter(cnt)) {
1169                 counters.step(cnt, utype);
1170                 listings_label_ += " " + convert<docstring>(counters.value(cnt));
1171         }
1172 }
1173
1174
1175 } // namespace lyx