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prevent crash in cursorX when row cache is empty
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1 /**
2  * \file lyxfunc.C
3  * This file is part of LyX, the document processor.
4  * Licence details can be found in the file COPYING.
5  *
6  * \author Alfredo Braunstein
7  * \author Lars Gullik Bjønnes
8  * \author Jean-Marc Lasgouttes
9  * \author Angus Leeming
10  * \author John Levon
11  * \author André Pönitz
12  * \author Allan Rae
13  * \author Dekel Tsur
14  * \author Martin Vermeer
15  * \author Jürgen Vigna
16  *
17  * Full author contact details are available in file CREDITS.
18  */
19
20 #include <config.h>
21
22 #include "lyxfunc.h"
23
24 #include "BranchList.h"
25 #include "buffer.h"
26 #include "buffer_funcs.h"
27 #include "bufferlist.h"
28 #include "bufferparams.h"
29 #include "BufferView.h"
30 #include "cursor.h"
31 #include "debug.h"
32 #include "dispatchresult.h"
33 #include "encoding.h"
34 #include "exporter.h"
35 #include "format.h"
36 #include "funcrequest.h"
37 #include "gettext.h"
38 #include "importer.h"
39 #include "intl.h"
40 #include "iterators.h"
41 #include "kbmap.h"
42 #include "LColor.h"
43 #include "lyx_cb.h"
44 #include "LyXAction.h"
45 #include "lyxfind.h"
46 #include "lyxrc.h"
47 #include "lyxrow.h"
48 #include "lyxserver.h"
49 #include "lyxvc.h"
50 #include "paragraph.h"
51 #include "ParagraphParameters.h"
52 #include "undo.h"
53
54 #include "insets/insetbox.h"
55 #include "insets/insetbranch.h"
56 #include "insets/insetcommand.h"
57 #include "insets/insetert.h"
58 #include "insets/insetexternal.h"
59 #include "insets/insetfloat.h"
60 #include "insets/insetgraphics.h"
61 #include "insets/insetnote.h"
62 #include "insets/insettabular.h"
63 #include "insets/insetvspace.h"
64 #include "insets/insetwrap.h"
65
66 #include "mathed/math_cursor.h"
67
68 #include "frontends/Alert.h"
69 #include "frontends/Dialogs.h"
70 #include "frontends/FileDialog.h"
71 #include "frontends/lyx_gui.h"
72 #include "frontends/LyXKeySym.h"
73 #include "frontends/LyXView.h"
74 #include "frontends/Menubar.h"
75 #include "frontends/Toolbar.h"
76
77 #include "support/FileInfo.h"
78 #include "support/filetools.h"
79 #include "support/forkedcontr.h"
80 #include "support/path.h"
81 #include "support/path_defines.h"
82 #include "support/tostr.h"
83 #include "support/std_sstream.h"
84 #include "support/os.h"
85
86 using bv_funcs::changeDepth;
87 using bv_funcs::currentState;
88 using bv_funcs::DEC_DEPTH;
89 using bv_funcs::freefont2string;
90 using bv_funcs::INC_DEPTH;
91
92 using lyx::support::AddName;
93 using lyx::support::AddPath;
94 using lyx::support::bformat;
95 using lyx::support::ChangeExtension;
96 using lyx::support::FileInfo;
97 using lyx::support::FileSearch;
98 using lyx::support::ForkedcallsController;
99 using lyx::support::i18nLibFileSearch;
100 using lyx::support::IsDirWriteable;
101 using lyx::support::IsFileReadable;
102 using lyx::support::isStrInt;
103 using lyx::support::MakeAbsPath;
104 using lyx::support::MakeDisplayPath;
105 using lyx::support::Path;
106 using lyx::support::rtrim;
107 using lyx::support::split;
108 using lyx::support::strToInt;
109 using lyx::support::strToUnsignedInt;
110 using lyx::support::system_lyxdir;
111 using lyx::support::token;
112 using lyx::support::trim;
113 using lyx::support::user_lyxdir;
114 using lyx::support::prefixIs;
115 using lyx::support::os::getTmpDir;
116
117 using std::endl;
118 using std::make_pair;
119 using std::pair;
120 using std::string;
121 using std::istringstream;
122
123
124 extern BufferList bufferlist;
125 extern LyXServer * lyxserver;
126 extern bool selection_possible;
127
128 extern boost::scoped_ptr<kb_keymap> toplevel_keymap;
129
130 // (alkis)
131 extern tex_accent_struct get_accent(kb_action action);
132
133
134 LyXFunc::LyXFunc(LyXView * lv)
135         : owner(lv),
136         encoded_last_key(0),
137         keyseq(toplevel_keymap.get(), toplevel_keymap.get()),
138         cancel_meta_seq(toplevel_keymap.get(), toplevel_keymap.get()),
139         meta_fake_bit(key_modifier::none)
140 {
141 }
142
143
144 void LyXFunc::handleKeyFunc(kb_action action)
145 {
146         char c = encoded_last_key;
147
148         if (keyseq.length()) {
149                 c = 0;
150         }
151
152         owner->getIntl().getTransManager()
153                 .deadkey(c, get_accent(action).accent, view()->getLyXText());
154         // Need to clear, in case the minibuffer calls these
155         // actions
156         keyseq.clear();
157         // copied verbatim from do_accent_char
158         view()->update();
159         view()->getLyXText()->selection.cursor = view()->getLyXText()->cursor;
160 }
161
162
163 void LyXFunc::processKeySym(LyXKeySymPtr keysym,
164                             key_modifier::state state)
165 {
166         string argument;
167
168         if (lyxerr.debugging(Debug::KEY)) {
169                 lyxerr << "KeySym is "
170                        << keysym->getSymbolName()
171                        << endl;
172         }
173
174         // Do nothing if we have nothing (JMarc)
175         if (!keysym->isOK()) {
176                 lyxerr[Debug::KEY] << "Empty kbd action (probably composing)"
177                                    << endl;
178                 return;
179         }
180
181         if (keysym->isModifier()) {
182                 lyxerr[Debug::KEY] << "isModifier true" << endl;
183                 return;
184         }
185
186         Encoding const * encoding = view()->getEncoding();
187
188         encoded_last_key = keysym->getISOEncoded(encoding ? encoding->Name() : "");
189
190         // Do a one-deep top-level lookup for
191         // cancel and meta-fake keys. RVDK_PATCH_5
192         cancel_meta_seq.reset();
193
194         FuncRequest func = cancel_meta_seq.addkey(keysym, state);
195         lyxerr[Debug::KEY] << "action first set to [" << func.action << ']' << endl;
196
197         // When not cancel or meta-fake, do the normal lookup.
198         // Note how the meta_fake Mod1 bit is OR-ed in and reset afterwards.
199         // Mostly, meta_fake_bit = key_modifier::none. RVDK_PATCH_5.
200         if ((func.action != LFUN_CANCEL) && (func.action != LFUN_META_FAKE)) {
201                 // remove Caps Lock and Mod2 as a modifiers
202                 func = keyseq.addkey(keysym, (state | meta_fake_bit));
203                 lyxerr[Debug::KEY] << "action now set to ["
204                         << func.action << ']' << endl;
205         }
206
207         // Dont remove this unless you know what you are doing.
208         meta_fake_bit = key_modifier::none;
209
210         // can this happen now ?
211         if (func.action == LFUN_NOACTION) {
212                 func = FuncRequest(LFUN_PREFIX);
213         }
214
215         if (lyxerr.debugging(Debug::KEY)) {
216                 lyxerr << "Key [action="
217                        << func.action << "]["
218                        << keyseq.print() << ']'
219                        << endl;
220         }
221
222         // already here we know if it any point in going further
223         // why not return already here if action == -1 and
224         // num_bytes == 0? (Lgb)
225
226         if (keyseq.length() > 1) {
227                 owner->message(keyseq.print());
228         }
229
230
231         // Maybe user can only reach the key via holding down shift.
232         // Let's see. But only if shift is the only modifier
233         if (func.action == LFUN_UNKNOWN_ACTION &&
234             state == key_modifier::shift) {
235                 lyxerr[Debug::KEY] << "Trying without shift" << endl;
236                 func = keyseq.addkey(keysym, key_modifier::none);
237                 lyxerr[Debug::KEY] << "Action now " << func.action << endl;
238         }
239
240         if (func.action == LFUN_UNKNOWN_ACTION) {
241                 // Hmm, we didn't match any of the keysequences. See
242                 // if it's normal insertable text not already covered
243                 // by a binding
244                 if (keysym->isText() && keyseq.length() == 1) {
245                         lyxerr[Debug::KEY] << "isText() is true, inserting." << endl;
246                         func = FuncRequest(LFUN_SELFINSERT);
247                 } else {
248                         lyxerr[Debug::KEY] << "Unknown, !isText() - giving up" << endl;
249                         owner->message(_("Unknown function."));
250                         return;
251                 }
252         }
253
254         if (func.action == LFUN_SELFINSERT) {
255                 if (encoded_last_key != 0) {
256                         string arg;
257                         arg += encoded_last_key;
258
259                         dispatch(FuncRequest(view(), LFUN_SELFINSERT, arg));
260
261                         lyxerr[Debug::KEY] << "SelfInsert arg[`"
262                                    << argument << "']" << endl;
263                 }
264         } else {
265                 dispatch(func);
266         }
267 }
268
269
270 FuncStatus LyXFunc::getStatus(FuncRequest const & ev) const
271 {
272         FuncStatus flag;
273         Buffer * buf = owner->buffer();
274
275         if (ev.action == LFUN_NOACTION) {
276                 setStatusMessage(N_("Nothing to do"));
277                 flag.disabled(true);
278                 return flag;
279         }
280
281         switch (ev.action) {
282         case LFUN_UNKNOWN_ACTION:
283 #ifndef HAVE_LIBAIKSAURUS
284         case LFUN_THESAURUS_ENTRY:
285 #endif
286                 flag.unknown(true);
287                 flag.disabled(true);
288                 break;
289         default:
290                 flag |= lyx_gui::getStatus(ev);
291         }
292
293         if (flag.unknown()) {
294                 setStatusMessage(N_("Unknown action"));
295                 return flag;
296         }
297
298         // the default error message if we disable the command
299         setStatusMessage(N_("Command disabled"));
300
301         // Check whether we need a buffer
302         if (!lyxaction.funcHasFlag(ev.action, LyXAction::NoBuffer)) {
303                 // Yes we need a buffer, do we have one?
304                 if (buf) {
305                         // yes
306                         // Can we use a readonly buffer?
307                         if (buf->isReadonly() &&
308                             !lyxaction.funcHasFlag(ev.action,
309                                                    LyXAction::ReadOnly)) {
310                                 // no
311                                 setStatusMessage(N_("Document is read-only"));
312                                 flag.disabled(true);
313                         }
314                 } else {
315                         // no
316                         setStatusMessage(N_("Command not allowed with"
317                                             "out any document open"));
318                         flag.disabled(true);
319                         return flag;
320                 }
321         }
322
323         UpdatableInset * tli = view()->cursor().innerInset();
324         InsetTabular * tab = view()->cursor().innerInsetTabular();
325
326         // I would really like to avoid having this switch and rather try to
327         // encode this in the function itself.
328         bool disable = false;
329         switch (ev.action) {
330         case LFUN_EXPORT:
331                 disable = ev.argument != "custom"
332                         && !Exporter::IsExportable(*buf, ev.argument);
333                 break;
334         case LFUN_UNDO:
335                 disable = buf->undostack().empty();
336                 break;
337         case LFUN_REDO:
338                 disable = buf->redostack().empty();
339                 break;
340         case LFUN_CUT:
341         case LFUN_COPY:
342                 if (tab && tab->hasSelection())
343                         disable = false;
344                 else
345                         disable = !mathcursor && !view()->getLyXText()->selection.set();
346                 break;
347
348         case LFUN_RUNCHKTEX:
349                 disable = !buf->isLatex() || lyxrc.chktex_command == "none";
350                 break;
351
352         case LFUN_BUILDPROG:
353                 disable = !Exporter::IsExportable(*buf, "program");
354                 break;
355
356         case LFUN_LAYOUT_TABULAR:
357                 disable = !view()->cursor().innerInsetTabular();
358                 break;
359
360         case LFUN_DEPTH_MIN:
361                 disable = !changeDepthAllowed(view(), view()->getLyXText(), DEC_DEPTH);
362                 break;
363
364         case LFUN_DEPTH_PLUS:
365                 disable = !changeDepthAllowed(view(), view()->getLyXText(), INC_DEPTH);
366                 break;
367
368         case LFUN_LAYOUT:
369         case LFUN_LAYOUT_PARAGRAPH: {
370                 InsetOld * inset = view()->getLyXText()->cursorPar()->inInset();
371                 disable = inset && inset->forceDefaultParagraphs(inset);
372                 break;
373         }
374
375         case LFUN_INSET_OPTARG:
376                 disable = (view()->getLyXText()->cursorPar()->layout()->optionalargs == 0);
377                 break;
378
379         case LFUN_TABULAR_FEATURE:
380 #if 0
381                 if (mathcursor) {
382                         // FIXME: check temporarily disabled
383                         // valign code
384                         char align = mathcursor->valign();
385                         if (align == '\0') {
386                                 disable = true;
387                                 break;
388                         }
389                         if (ev.argument.empty()) {
390                                 flag.clear();
391                                 break;
392                         }
393                         if (!contains("tcb", ev.argument[0])) {
394                                 disable = true;
395                                 break;
396                         }
397                         flag.setOnOff(ev.argument[0] == align);
398                 } else {
399                         disable = true;
400
401                         char align = mathcursor->halign();
402                         if (align == '\0') {
403                                 disable = true;
404                                 break;
405                         }
406                         if (ev.argument.empty()) {
407                                 flag.clear();
408                                 break;
409                         }
410                         if (!contains("lcr", ev.argument[0])) {
411                                 disable = true;
412                                 break;
413                         }
414                         flag.setOnOff(ev.argument[0] == align);
415
416                         disable = !mathcursor->halign();
417                         break;
418                 }
419
420                 if (tli) {
421                         FuncStatus ret;
422                         //ret.disabled(true);
423                         InsetTabular * tab = view()->cursor().innerInsetTabular();
424                         if (tab) {
425                                 ret = tab->getStatus(ev.argument);
426                                 flag |= ret;
427                                 disable = false;
428                         } else {
429                                 disable = true;
430                         }
431                 } else {
432                         static InsetTabular inset(*buf, 1, 1);
433                         disable = true;
434                         FuncStatus ret = inset.getStatus(ev.argument);
435                         if (ret.onoff(true) || ret.onoff(false))
436                                 flag.setOnOff(false);
437                 }
438 #endif
439                 break;
440
441         case LFUN_VC_REGISTER:
442                 disable = buf->lyxvc().inUse();
443                 break;
444         case LFUN_VC_CHECKIN:
445                 disable = !buf->lyxvc().inUse() || buf->isReadonly();
446                 break;
447         case LFUN_VC_CHECKOUT:
448                 disable = !buf->lyxvc().inUse() || !buf->isReadonly();
449                 break;
450         case LFUN_VC_REVERT:
451         case LFUN_VC_UNDO:
452                 disable = !buf->lyxvc().inUse();
453                 break;
454         case LFUN_MENURELOAD:
455                 disable = buf->isUnnamed() || buf->isClean();
456                 break;
457         case LFUN_BOOKMARK_GOTO:
458                 disable = !view()->
459                         isSavedPosition(strToUnsignedInt(ev.argument));
460                 break;
461
462         case LFUN_MERGE_CHANGES:
463         case LFUN_ACCEPT_CHANGE:
464         case LFUN_REJECT_CHANGE:
465         case LFUN_ACCEPT_ALL_CHANGES:
466         case LFUN_REJECT_ALL_CHANGES:
467                 disable = !buf->params().tracking_changes;
468                 break;
469
470         case LFUN_INSET_SETTINGS: {
471                 disable = true;
472                 UpdatableInset * inset = view()->cursor().innerInset();
473
474                 if (!inset)
475                         break;
476
477                 // jump back to owner if an InsetText, so
478                 // we get back to the InsetTabular or whatever
479                 if (inset->lyxCode() == InsetOld::TEXT_CODE)
480                         inset = inset->owner();
481
482                 InsetOld::Code code = inset->lyxCode();
483                 switch (code) {
484                         case InsetOld::TABULAR_CODE:
485                                 disable = ev.argument != "tabular";
486                                 break;
487                         case InsetOld::ERT_CODE:
488                                 disable = ev.argument != "ert";
489                                 break;
490                         case InsetOld::FLOAT_CODE:
491                                 disable = ev.argument != "float";
492                                 break;
493                         case InsetOld::WRAP_CODE:
494                                 disable = ev.argument != "wrap";
495                                 break;
496                         case InsetOld::NOTE_CODE:
497                                 disable = ev.argument != "note";
498                                 break;
499                         case InsetOld::BRANCH_CODE:
500                                 disable = ev.argument != "branch";
501                                 break;
502                         case InsetOld::BOX_CODE:
503                                 disable = ev.argument != "box";
504                                 break;
505                         default:
506                                 break;
507                 }
508                 break;
509         }
510
511         case LFUN_MATH_MUTATE:
512                 if (mathcursor)
513                         //flag.setOnOff(mathcursor->formula()->hullType() == ev.argument);
514                         flag.setOnOff(false);
515                 else
516                         disable = true;
517                 break;
518
519         // we just need to be in math mode to enable that
520         case LFUN_MATH_SIZE:
521         case LFUN_MATH_SPACE:
522         case LFUN_MATH_LIMITS:
523         case LFUN_MATH_NONUMBER:
524         case LFUN_MATH_NUMBER:
525         case LFUN_MATH_EXTERN:
526                 disable = !mathcursor;
527                 break;
528
529         case LFUN_DIALOG_SHOW: {
530                 string const name = ev.getArg(0);
531                 if (!buf) {
532                         disable = !(name == "aboutlyx" ||
533                                     name == "file" ||
534                                     name == "forks" ||
535                                     name == "preferences" ||
536                                     name == "texinfo");
537                         break;
538                 }
539
540                 if (name == "print") {
541                         disable = !Exporter::IsExportable(*buf, "dvi") ||
542                                 lyxrc.print_command == "none";
543                 } else if (name == "character") {
544                         UpdatableInset * tli = view()->cursor().innerInset();
545                         disable = tli && tli->lyxCode() == InsetOld::ERT_CODE;
546                 } else if (name == "vclog") {
547                         disable = !buf->lyxvc().inUse();
548                 } else if (name == "latexlog") {
549                         disable = !IsFileReadable(buf->getLogName().second);
550                 }
551                 break;
552         }
553
554         default:
555                 break;
556         }
557
558         // the functions which insert insets
559         InsetOld::Code code = InsetOld::NO_CODE;
560         switch (ev.action) {
561         case LFUN_DIALOG_SHOW_NEW_INSET:
562                 if (ev.argument == "bibitem")
563                         code = InsetOld::BIBITEM_CODE;
564                 else if (ev.argument == "bibtex")
565                         code = InsetOld::BIBTEX_CODE;
566                 else if (ev.argument == "box")
567                         code = InsetOld::BOX_CODE;
568                 else if (ev.argument == "branch")
569                         code = InsetOld::BRANCH_CODE;
570                 else if (ev.argument == "citation")
571                         code = InsetOld::CITE_CODE;
572                 else if (ev.argument == "ert")
573                         code = InsetOld::ERT_CODE;
574                 else if (ev.argument == "external")
575                         code = InsetOld::EXTERNAL_CODE;
576                 else if (ev.argument == "float")
577                         code = InsetOld::FLOAT_CODE;
578                 else if (ev.argument == "graphics")
579                         code = InsetOld::GRAPHICS_CODE;
580                 else if (ev.argument == "include")
581                         code = InsetOld::INCLUDE_CODE;
582                 else if (ev.argument == "index")
583                         code = InsetOld::INDEX_CODE;
584                 else if (ev.argument == "label")
585                         code = InsetOld::LABEL_CODE;
586                 else if (ev.argument == "note")
587                         code = InsetOld::NOTE_CODE;
588                 else if (ev.argument == "ref")
589                         code = InsetOld::REF_CODE;
590                 else if (ev.argument == "toc")
591                         code = InsetOld::TOC_CODE;
592                 else if (ev.argument == "url")
593                         code = InsetOld::URL_CODE;
594                 else if (ev.argument == "vspace")
595                         code = InsetOld::VSPACE_CODE;
596                 else if (ev.argument == "wrap")
597                         code = InsetOld::WRAP_CODE;
598                 break;
599
600         case LFUN_INSET_ERT:
601                 code = InsetOld::ERT_CODE;
602                 break;
603         case LFUN_INSET_FOOTNOTE:
604                 code = InsetOld::FOOT_CODE;
605                 break;
606         case LFUN_TABULAR_INSERT:
607                 code = InsetOld::TABULAR_CODE;
608                 break;
609         case LFUN_INSET_MARGINAL:
610                 code = InsetOld::MARGIN_CODE;
611                 break;
612         case LFUN_INSET_FLOAT:
613         case LFUN_INSET_WIDE_FLOAT:
614                 code = InsetOld::FLOAT_CODE;
615                 break;
616         case LFUN_INSET_WRAP:
617                 code = InsetOld::WRAP_CODE;
618                 break;
619         case LFUN_FLOAT_LIST:
620                 code = InsetOld::FLOAT_LIST_CODE;
621                 break;
622 #if 0
623         case LFUN_INSET_LIST:
624                 code = InsetOld::LIST_CODE;
625                 break;
626         case LFUN_INSET_THEOREM:
627                 code = InsetOld::THEOREM_CODE;
628                 break;
629 #endif
630         case LFUN_INSET_CAPTION:
631                 code = InsetOld::CAPTION_CODE;
632                 break;
633         case LFUN_INSERT_NOTE:
634                 code = InsetOld::NOTE_CODE;
635                 break;
636         case LFUN_INSERT_CHARSTYLE:
637                 code = InsetOld::CHARSTYLE_CODE;
638                 if (buf->params().getLyXTextClass().charstyles().empty())
639                         disable = true;
640                 break;
641         case LFUN_INSERT_BOX:
642                 code = InsetOld::BOX_CODE;
643                 break;
644         case LFUN_INSERT_BRANCH:
645                 code = InsetOld::BRANCH_CODE;
646                 if (buf->params().branchlist().empty())
647                         disable = true;
648                 break;
649         case LFUN_INSERT_LABEL:
650                 code = InsetOld::LABEL_CODE;
651                 break;
652         case LFUN_INSET_OPTARG:
653                 code = InsetOld::OPTARG_CODE;
654                 break;
655         case LFUN_ENVIRONMENT_INSERT:
656                 code = InsetOld::BOX_CODE;
657                 break;
658         case LFUN_INDEX_INSERT:
659                 code = InsetOld::INDEX_CODE;
660                 break;
661         case LFUN_INDEX_PRINT:
662                 code = InsetOld::INDEX_PRINT_CODE;
663                 break;
664         case LFUN_TOC_INSERT:
665                 code = InsetOld::TOC_CODE;
666                 break;
667         case LFUN_HTMLURL:
668         case LFUN_URL:
669                 code = InsetOld::URL_CODE;
670                 break;
671         case LFUN_QUOTE:
672                 // always allow this, since we will inset a raw quote
673                 // if an inset is not allowed.
674                 break;
675         case LFUN_HYPHENATION:
676         case LFUN_LIGATURE_BREAK:
677         case LFUN_HFILL:
678         case LFUN_MENU_SEPARATOR:
679         case LFUN_LDOTS:
680         case LFUN_END_OF_SENTENCE:
681                 code = InsetOld::SPECIALCHAR_CODE;
682                 break;
683         case LFUN_SPACE_INSERT:
684                 // slight hack: we know this is allowed in math mode
685                 if (!mathcursor)
686                         code = InsetOld::SPACE_CODE;
687                 break;
688         case LFUN_INSET_DIALOG_SHOW: {
689                 InsetOld * inset = view()->getLyXText()->getInset();
690                 disable = !inset;
691                 if (!disable) {
692                         code = inset->lyxCode();
693                         if (!(code == InsetOld::INCLUDE_CODE
694                                 || code == InsetOld::BIBTEX_CODE
695                                 || code == InsetOld::FLOAT_LIST_CODE
696                                 || code == InsetOld::TOC_CODE))
697                                 disable = true;
698                 }
699                 break;
700         }
701         default:
702                 break;
703         }
704         if (code != InsetOld::NO_CODE && tli && !tli->insetAllowed(code))
705                 disable = true;
706
707         if (disable)
708                 flag.disabled(true);
709
710         // A few general toggles
711         switch (ev.action) {
712         case LFUN_TOOLTIPS_TOGGLE:
713                 flag.setOnOff(owner->getDialogs().tooltipsEnabled());
714                 break;
715
716         case LFUN_READ_ONLY_TOGGLE:
717                 flag.setOnOff(buf->isReadonly());
718                 break;
719         case LFUN_APPENDIX:
720                 flag.setOnOff(view()->getLyXText()->cursorPar()->params().startOfAppendix());
721                 break;
722         case LFUN_SWITCHBUFFER:
723                 // toggle on the current buffer, but do not toggle off
724                 // the other ones (is that a good idea?)
725                 if (ev.argument == buf->fileName())
726                         flag.setOnOff(true);
727                 break;
728         case LFUN_TRACK_CHANGES:
729                 flag.setOnOff(buf->params().tracking_changes);
730                 break;
731         default:
732                 break;
733         }
734
735 #ifdef LOCK
736         // the font related toggles
737         if (!mathcursor) {
738                 LyXFont const & font = view()->getLyXText()->real_current_font;
739                 switch (ev.action) {
740                 case LFUN_EMPH:
741                         flag.setOnOff(font.emph() == LyXFont::ON);
742                         break;
743                 case LFUN_NOUN:
744                         flag.setOnOff(font.noun() == LyXFont::ON);
745                         break;
746                 case LFUN_BOLD:
747                         flag.setOnOff(font.series() == LyXFont::BOLD_SERIES);
748                         break;
749                 case LFUN_SANS:
750                         flag.setOnOff(font.family() == LyXFont::SANS_FAMILY);
751                         break;
752                 case LFUN_ROMAN:
753                         flag.setOnOff(font.family() == LyXFont::ROMAN_FAMILY);
754                         break;
755                 case LFUN_CODE:
756                         flag.setOnOff(font.family() == LyXFont::TYPEWRITER_FAMILY);
757                         break;
758                 default:
759                         break;
760                 }
761         } else {
762                 string tc = mathcursor->getLastCode();
763                 switch (ev.action) {
764                 case LFUN_BOLD:
765                         flag.setOnOff(tc == "mathbf");
766                         break;
767                 case LFUN_SANS:
768                         flag.setOnOff(tc == "mathsf");
769                         break;
770                 case LFUN_EMPH:
771                         flag.setOnOff(tc == "mathcal");
772                         break;
773                 case LFUN_ROMAN:
774                         flag.setOnOff(tc == "mathrm");
775                         break;
776                 case LFUN_CODE:
777                         flag.setOnOff(tc == "mathtt");
778                         break;
779                 case LFUN_NOUN:
780                         flag.setOnOff(tc == "mathbb");
781                         break;
782                 case LFUN_DEFAULT:
783                         flag.setOnOff(tc == "mathnormal");
784                         break;
785                 default:
786                         break;
787                 }
788         }
789 #endif
790
791         // this one is difficult to get right. As a half-baked
792         // solution, we consider only the first action of the sequence
793         if (ev.action == LFUN_SEQUENCE) {
794                 // argument contains ';'-terminated commands
795 #warning LyXAction arguments not handled here.
796                 flag = getStatus(FuncRequest(lyxaction.lookupFunc(token(ev.argument, ';', 0))));
797         }
798
799         return flag;
800 }
801
802
803 namespace {
804
805 bool ensureBufferClean(BufferView * bv)
806 {
807         Buffer & buf = *bv->buffer();
808         if (buf.isClean())
809                 return true;
810
811         string const file = MakeDisplayPath(buf.fileName(), 30);
812         string text = bformat(_("The document %1$s has unsaved "
813                                 "changes.\n\nDo you want to save "
814                                 "the document?"), file);
815         int const ret = Alert::prompt(_("Save changed document?"),
816                                       text, 0, 1, _("&Save"),
817                                       _("&Cancel"));
818
819         if (ret == 0)
820                 bv->owner()->dispatch(FuncRequest(LFUN_MENUWRITE));
821
822         return buf.isClean();
823 }
824
825 } //namespace anon
826
827
828 void LyXFunc::dispatch(FuncRequest const & func, bool verbose)
829 {
830         string argument = func.argument;
831         kb_action action = func.action;
832
833         //lyxerr[Debug::ACTION] << "LyXFunc::dispatch: cmd: " << func << endl;
834         lyxerr << "LyXFunc::dispatch: cmd: " << func << endl;
835
836         // we have not done anything wrong yet.
837         errorstat = false;
838         dispatch_buffer.erase();
839
840 #ifdef NEW_DISPATCHER
841         // We try do call the most specific dispatcher first:
842         //  1. the lockinginset's dispatch
843         //  2. the bufferview's dispatch
844         //  3. the lyxview's dispatch
845 #endif
846
847         selection_possible = false;
848
849         // We cannot use this function here
850         if (getStatus(func).disabled()) {
851                 lyxerr[Debug::ACTION] << "LyXFunc::dispatch: "
852                        << lyxaction.getActionName(action)
853                        << " [" << action << "] is disabled at this location"
854                        << endl;
855                 setErrorMessage(getStatusMessage());
856
857         } else {
858
859                 if (view()->available())
860                         view()->hideCursor();
861
862                 switch (action) {
863
864                 case LFUN_ESCAPE: {
865                         if (!view()->available())
866                                 break;
867                         view()->cursor().pop();
868                         // Tell the paragraph dialog that we changed paragraph
869                         dispatch(FuncRequest(LFUN_PARAGRAPH_UPDATE));
870                         break;
871                 }
872
873                 case LFUN_WORDFINDFORWARD:
874                 case LFUN_WORDFINDBACKWARD: {
875                         static string last_search;
876                         string searched_string;
877
878                         if (!argument.empty()) {
879                                 last_search = argument;
880                                 searched_string = argument;
881                         } else {
882                                 searched_string = last_search;
883                         }
884                         bool fw = (action == LFUN_WORDFINDFORWARD);
885                         if (!searched_string.empty())
886                                 lyx::find::find(view(), searched_string,
887                                                 true, false, fw);
888                         break;
889                 }
890
891                 case LFUN_PREFIX:
892                         owner->message(keyseq.printOptions());
893                         break;
894
895                 case LFUN_EXEC_COMMAND:
896                         owner->focus_command_buffer();
897                         break;
898
899                 case LFUN_CANCEL:
900                         keyseq.reset();
901                         meta_fake_bit = key_modifier::none;
902                         if (view()->available())
903                                 // cancel any selection
904                                 dispatch(FuncRequest(LFUN_MARK_OFF));
905                         setMessage(N_("Cancel"));
906                         break;
907
908                 case LFUN_META_FAKE:
909                         meta_fake_bit = key_modifier::alt;
910                         setMessage(keyseq.print());
911                         break;
912
913                 case LFUN_READ_ONLY_TOGGLE:
914                         if (owner->buffer()->lyxvc().inUse())
915                                 owner->buffer()->lyxvc().toggleReadOnly();
916                         else
917                                 owner->buffer()->setReadonly(
918                                         !owner->buffer()->isReadonly());
919                         break;
920
921                 case LFUN_CENTER: // this is center and redraw.
922                         view()->center();
923                         break;
924
925                 // --- Menus -----------------------------------------------
926                 case LFUN_MENUNEW:
927                         menuNew(argument, false);
928                         break;
929
930                 case LFUN_MENUNEWTMPLT:
931                         menuNew(argument, true);
932                         break;
933
934                 case LFUN_CLOSEBUFFER:
935                         closeBuffer();
936                         break;
937
938                 case LFUN_MENUWRITE:
939                         if (!owner->buffer()->isUnnamed()) {
940                                 string const str = bformat(_("Saving document %1$s..."),
941                                          MakeDisplayPath(owner->buffer()->fileName()));
942                                 owner->message(str);
943                                 MenuWrite(owner->buffer());
944                                 owner->message(str + _(" done."));
945                         } else
946                                 WriteAs(owner->buffer());
947                         break;
948
949                 case LFUN_WRITEAS:
950                         WriteAs(owner->buffer(), argument);
951                         break;
952
953                 case LFUN_MENURELOAD: {
954                         string const file = MakeDisplayPath(view()->buffer()->fileName(), 20);
955                         string text = bformat(_("Any changes will be lost. Are you sure "
956                                 "you want to revert to the saved version of the document %1$s?"), file);
957                         int const ret = Alert::prompt(_("Revert to saved document?"),
958                                 text, 0, 1, _("&Revert"), _("&Cancel"));
959
960                         if (ret == 0)
961                                 view()->reload();
962                         break;
963                 }
964
965                 case LFUN_UPDATE:
966                         Exporter::Export(owner->buffer(), argument, true);
967                         view()->showErrorList(BufferFormat(*owner->buffer()));
968                         break;
969
970                 case LFUN_PREVIEW:
971                         Exporter::Preview(owner->buffer(), argument);
972                         view()->showErrorList(BufferFormat(*owner->buffer()));
973                         break;
974
975                 case LFUN_BUILDPROG:
976                         Exporter::Export(owner->buffer(), "program", true);
977                         view()->showErrorList(_("Build"));
978                         break;
979
980                 case LFUN_RUNCHKTEX:
981                         owner->buffer()->runChktex();
982                         view()->showErrorList(_("ChkTeX"));
983                         break;
984
985                 case LFUN_EXPORT:
986                         if (argument == "custom")
987                                 owner->getDialogs().showSendto();
988                         else {
989                                 Exporter::Export(owner->buffer(), argument, false);
990                                 view()->showErrorList(BufferFormat(*owner->buffer()));
991                         }
992                         break;
993
994                 case LFUN_IMPORT:
995                         doImport(argument);
996                         break;
997
998                 case LFUN_QUIT:
999                         QuitLyX();
1000                         break;
1001
1002                 case LFUN_TOCVIEW: {
1003                         InsetCommandParams p("tableofcontents");
1004                         string const data = InsetCommandMailer::params2string("toc", p);
1005                         owner->getDialogs().show("toc", data, 0);
1006                         break;
1007                 }
1008
1009                 case LFUN_AUTOSAVE:
1010                         AutoSave(view());
1011                         break;
1012
1013                 case LFUN_UNDO:
1014                         view()->undo();
1015                         break;
1016
1017                 case LFUN_REDO:
1018                         view()->redo();
1019                         break;
1020
1021                 case LFUN_RECONFIGURE:
1022                         Reconfigure(view());
1023                         break;
1024
1025                 case LFUN_HELP_OPEN: {
1026                         string const arg = argument;
1027                         if (arg.empty()) {
1028                                 setErrorMessage(N_("Missing argument"));
1029                                 break;
1030                         }
1031                         string const fname = i18nLibFileSearch("doc", arg, "lyx");
1032                         if (fname.empty()) {
1033                                 lyxerr << "LyX: unable to find documentation file `"
1034                                                          << arg << "'. Bad installation?" << endl;
1035                                 break;
1036                         }
1037                         owner->message(bformat(_("Opening help file %1$s..."),
1038                                 MakeDisplayPath(fname)));
1039                         view()->loadLyXFile(fname, false);
1040                         break;
1041                 }
1042
1043                 // --- version control -------------------------------
1044                 case LFUN_VC_REGISTER:
1045                         if (!ensureBufferClean(view()))
1046                                 break;
1047                         if (!owner->buffer()->lyxvc().inUse()) {
1048                                 owner->buffer()->lyxvc().registrer();
1049                                 view()->reload();
1050                         }
1051                         break;
1052
1053                 case LFUN_VC_CHECKIN:
1054                         if (!ensureBufferClean(view()))
1055                                 break;
1056                         if (owner->buffer()->lyxvc().inUse()
1057                                         && !owner->buffer()->isReadonly()) {
1058                                 owner->buffer()->lyxvc().checkIn();
1059                                 view()->reload();
1060                         }
1061                         break;
1062
1063                 case LFUN_VC_CHECKOUT:
1064                         if (!ensureBufferClean(view()))
1065                                 break;
1066                         if (owner->buffer()->lyxvc().inUse()
1067                                         && owner->buffer()->isReadonly()) {
1068                                 owner->buffer()->lyxvc().checkOut();
1069                                 view()->reload();
1070                         }
1071                         break;
1072
1073                 case LFUN_VC_REVERT:
1074                         owner->buffer()->lyxvc().revert();
1075                         view()->reload();
1076                         break;
1077
1078                 case LFUN_VC_UNDO:
1079                         owner->buffer()->lyxvc().undoLast();
1080                         view()->reload();
1081                         break;
1082
1083                 // --- buffers ----------------------------------------
1084                 case LFUN_SWITCHBUFFER:
1085                         view()->buffer(bufferlist.getBuffer(argument));
1086                         break;
1087
1088                 case LFUN_FILE_NEW:
1089                         NewFile(view(), argument);
1090                         break;
1091
1092                 case LFUN_FILE_OPEN:
1093                         open(argument);
1094                         break;
1095
1096                 case LFUN_LAYOUT_TABULAR:
1097                         if (InsetTabular * tab = view()->cursor().innerInsetTabular())
1098                                 tab->openLayoutDialog(view());
1099                         break;
1100
1101                 case LFUN_DROP_LAYOUTS_CHOICE:
1102                         owner->getToolbar().openLayoutList();
1103                         break;
1104
1105                 case LFUN_MENU_OPEN_BY_NAME:
1106                         owner->getMenubar().openByName(argument);
1107                         break;
1108
1109                 // --- lyxserver commands ----------------------------
1110                 case LFUN_GETNAME:
1111                         setMessage(owner->buffer()->fileName());
1112                         lyxerr[Debug::INFO] << "FNAME["
1113                                                          << owner->buffer()->fileName()
1114                                                          << "] " << endl;
1115                         break;
1116
1117                 case LFUN_NOTIFY:
1118                         dispatch_buffer = keyseq.print();
1119                         lyxserver->notifyClient(dispatch_buffer);
1120                         break;
1121
1122                 case LFUN_GOTOFILEROW: {
1123                         string file_name;
1124                         int row;
1125                         istringstream is(argument);
1126                         is >> file_name >> row;
1127                         if (prefixIs(file_name, getTmpDir())) {
1128                                 // Needed by inverse dvi search. If it is a file
1129                                 // in tmpdir, call the apropriated function
1130                                 view()->buffer(bufferlist.getBufferFromTmp(file_name));
1131                         } else {
1132                                 // Must replace extension of the file to be .lyx
1133                                 // and get full path
1134                                 string const s = ChangeExtension(file_name, ".lyx");
1135                                 // Either change buffer or load the file
1136                                 if (bufferlist.exists(s)) {
1137                                         view()->buffer(bufferlist.getBuffer(s));
1138                                 } else {
1139                                         view()->loadLyXFile(s);
1140                                 }
1141                         }
1142
1143                         view()->setCursorFromRow(row);
1144
1145                         view()->center();
1146                         // see BufferView_pimpl::center()
1147                         view()->updateScrollbar();
1148                         break;
1149                 }
1150
1151                 case LFUN_GOTO_PARAGRAPH: {
1152                         istringstream is(argument);
1153                         int id;
1154                         is >> id;
1155                         ParIterator par = owner->buffer()->getParFromID(id);
1156                         if (par == owner->buffer()->par_iterator_end()) {
1157                                 lyxerr[Debug::INFO] << "No matching paragraph found! ["
1158                                                                 << id << ']' << endl;
1159                                 break;
1160                         } else {
1161                                 lyxerr[Debug::INFO] << "Paragraph " << par->id()
1162                                                                 << " found." << endl;
1163                         }
1164
1165                         par.lockPath(view());
1166                         LyXText * lt = par.text(*view()->buffer());
1167
1168                         // Set the cursor
1169                         lt->setCursor(par.pit(), 0);
1170                         view()->switchKeyMap();
1171                         owner->view_state_changed();
1172
1173                         view()->center();
1174                         // see BufferView_pimpl::center()
1175                         view()->updateScrollbar();
1176                         break;
1177                 }
1178
1179                 // ---  Mathed stuff. If we are here, there is no locked inset yet.
1180                 case LFUN_MATH_EXTERN:
1181                 case LFUN_MATH_NUMBER:
1182                 case LFUN_MATH_NONUMBER:
1183                 case LFUN_MATH_LIMITS:
1184                         setErrorMessage(N_("This is only allowed in math mode!"));
1185                         break;
1186
1187                 case LFUN_DIALOG_SHOW: {
1188                         string const name = func.getArg(0);
1189                         string data = trim(func.argument.substr(name.size()));
1190
1191                         if (name == "character") {
1192                                 data = freefont2string();
1193                                 if (!data.empty())
1194                                         owner->getDialogs().show("character", data);
1195                         }
1196                         else if (name == "document")
1197                                 owner->getDialogs().showDocument();
1198                         else if (name == "findreplace")
1199                                 owner->getDialogs().showSearch();
1200                         else if (name == "forks")
1201                                 owner->getDialogs().showForks();
1202                         else if (name == "preamble")
1203                                 owner->getDialogs().showPreamble();
1204                         else if (name == "preferences")
1205                                 owner->getDialogs().showPreferences();
1206                         else if (name == "print")
1207                                 owner->getDialogs().showPrint();
1208                         else if (name == "spellchecker")
1209                                 owner->getDialogs().showSpellchecker();
1210
1211                         else if (name == "latexlog") {
1212                                 pair<Buffer::LogType, string> const logfile =
1213                                         owner->buffer()->getLogName();
1214                                 switch (logfile.first) {
1215                                 case Buffer::latexlog:
1216                                         data = "latex ";
1217                                         break;
1218                                 case Buffer::buildlog:
1219                                         data = "literate ";
1220                                         break;
1221                                 }
1222                                 data += logfile.second;
1223                                 owner->getDialogs().show("log", data);
1224                         }
1225                         else if (name == "vclog") {
1226                                 string const data = "vc " +
1227                                         owner->buffer()->lyxvc().getLogFile();
1228                                 owner->getDialogs().show("log", data);
1229                         }
1230                         else
1231                                 owner->getDialogs().show(name, data);
1232                         break;
1233                 }
1234
1235                 case LFUN_DIALOG_SHOW_NEW_INSET: {
1236                         string const name = func.getArg(0);
1237                         string data = trim(func.argument.substr(name.size()));
1238                         if (name == "bibitem" ||
1239                             name == "bibtex" ||
1240                             name == "include" ||
1241                             name == "index" ||
1242                             name == "label" ||
1243                             name == "ref" ||
1244                             name == "toc" ||
1245                             name == "url") {
1246                                 InsetCommandParams p(name);
1247                                 data = InsetCommandMailer::params2string(name, p);
1248                         } else if (name == "box") {
1249                                 // \c data == "Boxed" || "Frameless" etc
1250                                 InsetBoxParams p(data);
1251                                 data = InsetBoxMailer::params2string(p);
1252                         } else if (name == "branch") {
1253                                 InsetBranchParams p;
1254                                 data = InsetBranchMailer::params2string(p);
1255                         } else if (name == "citation") {
1256                                 InsetCommandParams p("cite");
1257                                 data = InsetCommandMailer::params2string(name, p);
1258                         } else if (name == "ert") {
1259                                 data = InsetERTMailer::params2string(InsetCollapsable::Open);
1260                         } else if (name == "external") {
1261                                 InsetExternalParams p;
1262                                 Buffer const & buffer = *owner->buffer();
1263                                 data = InsetExternalMailer::params2string(p, buffer);
1264                         } else if (name == "float") {
1265                                 InsetFloatParams p;
1266                                 data = InsetFloatMailer::params2string(p);
1267                         } else if (name == "graphics") {
1268                                 InsetGraphicsParams p;
1269                                 Buffer const & buffer = *owner->buffer();
1270                                 data = InsetGraphicsMailer::params2string(p, buffer);
1271                         } else if (name == "note") {
1272                                 InsetNoteParams p;
1273                                 data = InsetNoteMailer::params2string(p);
1274                         } else if (name == "vspace") {
1275                                 VSpace space;
1276                                 data = InsetVSpaceMailer::params2string(space);
1277                         } else if (name == "wrap") {
1278                                 InsetWrapParams p;
1279                                 data = InsetWrapMailer::params2string(p);
1280                         }
1281                         owner->getDialogs().show(name, data, 0);
1282                         break;
1283                 }
1284
1285                 case LFUN_DIALOG_SHOW_NEXT_INSET:
1286                         break;
1287
1288                 case LFUN_INSET_DIALOG_SHOW: {
1289                         InsetOld * inset = view()->getLyXText()->getInset();
1290                         if (inset)
1291                                 inset->dispatch(FuncRequest(view(), LFUN_INSET_DIALOG_SHOW));
1292                         break;
1293                 }
1294
1295                 case LFUN_DIALOG_UPDATE: {
1296                         string const & name = argument;
1297                         // Can only update a dialog connected to an existing inset
1298                         InsetBase * inset = owner->getDialogs().getOpenInset(name);
1299                         if (inset) {
1300                                 FuncRequest fr(view(), LFUN_INSET_DIALOG_UPDATE,
1301                                                                  func.argument);
1302                                 inset->dispatch(fr);
1303                         } else if (name == "paragraph") {
1304                                 dispatch(FuncRequest(LFUN_PARAGRAPH_UPDATE));
1305                         }
1306                         break;
1307                 }
1308
1309                 case LFUN_DIALOG_HIDE:
1310                         Dialogs::hide(argument, 0);
1311                         break;
1312
1313                 case LFUN_DIALOG_DISCONNECT_INSET:
1314                         owner->getDialogs().disconnect(argument);
1315                         break;
1316
1317                 case LFUN_CHILDOPEN: {
1318                         string const filename =
1319                                 MakeAbsPath(argument, owner->buffer()->filePath());
1320                         setMessage(N_("Opening child document ") +
1321                                          MakeDisplayPath(filename) + "...");
1322                         view()->savePosition(0);
1323                         string const parentfilename = owner->buffer()->fileName();
1324                         if (bufferlist.exists(filename))
1325                                 view()->buffer(bufferlist.getBuffer(filename));
1326                         else
1327                                 view()->loadLyXFile(filename);
1328                         // Set the parent name of the child document.
1329                         // This makes insertion of citations and references in the child work,
1330                         // when the target is in the parent or another child document.
1331                         owner->buffer()->setParentName(parentfilename);
1332                         break;
1333                 }
1334
1335                 case LFUN_TOGGLECURSORFOLLOW:
1336                         lyxrc.cursor_follows_scrollbar = !lyxrc.cursor_follows_scrollbar;
1337                         break;
1338
1339                 case LFUN_KMAP_OFF:
1340                         owner->getIntl().KeyMapOn(false);
1341                         break;
1342
1343                 case LFUN_KMAP_PRIM:
1344                         owner->getIntl().KeyMapPrim();
1345                         break;
1346
1347                 case LFUN_KMAP_SEC:
1348                         owner->getIntl().KeyMapSec();
1349                         break;
1350
1351                 case LFUN_KMAP_TOGGLE:
1352                         owner->getIntl().ToggleKeyMap();
1353                         break;
1354
1355                 case LFUN_REPEAT: {
1356                         // repeat command
1357                         string countstr;
1358                         argument = split(argument, countstr, ' ');
1359                         istringstream is(countstr);
1360                         int count = 0;
1361                         is >> count;
1362                         lyxerr << "repeat: count: " << count << " cmd: " << argument << endl;
1363                         for (int i = 0; i < count; ++i)
1364                                 dispatch(lyxaction.lookupFunc(argument));
1365                         break;
1366                 }
1367
1368                 case LFUN_SEQUENCE:
1369                         // argument contains ';'-terminated commands
1370                         while (!argument.empty()) {
1371                                 string first;
1372                                 argument = split(argument, first, ';');
1373                                 dispatch(lyxaction.lookupFunc(first));
1374                         }
1375                         break;
1376
1377                 case LFUN_SAVEPREFERENCES: {
1378                         Path p(user_lyxdir());
1379                         lyxrc.write("preferences");
1380                         break;
1381                 }
1382
1383                 case LFUN_SCREEN_FONT_UPDATE:
1384                         // handle the screen font changes.
1385                         lyxrc.set_font_norm_type();
1386                         lyx_gui::update_fonts();
1387                         // All visible buffers will need resize
1388                         view()->resize();
1389                         break;
1390
1391                 case LFUN_SET_COLOR: {
1392                         string lyx_name;
1393                         string const x11_name = split(argument, lyx_name, ' ');
1394                         if (lyx_name.empty() || x11_name.empty()) {
1395                                 setErrorMessage(N_("Syntax: set-color <lyx_name>"
1396                                                         " <x11_name>"));
1397                                 break;
1398                         }
1399
1400                         bool const graphicsbg_changed =
1401                                 (lyx_name == lcolor.getLyXName(LColor::graphicsbg) &&
1402                                  x11_name != lcolor.getX11Name(LColor::graphicsbg));
1403
1404                         LColor::color col = lcolor.getFromLyXName(lyx_name);
1405                         if (!lcolor.setColor(col, x11_name)) {
1406                                 setErrorMessage(
1407                                         bformat(_("Set-color \"%1$s\" failed "
1408                                                                 "- color is undefined or "
1409                                                                 "may not be redefined"), lyx_name));
1410                                 break;
1411                         }
1412
1413                         lyx_gui::update_color(lcolor.getFromLyXName(lyx_name));
1414
1415                         if (graphicsbg_changed) {
1416 #ifdef WITH_WARNINGS
1417 #warning FIXME!! The graphics cache no longer has a changeDisplay method.
1418 #endif
1419 #if 0
1420                                 lyx::graphics::GCache::get().changeDisplay(true);
1421 #endif
1422                         }
1423                         break;
1424                 }
1425
1426                 case LFUN_MESSAGE:
1427                         owner->message(argument);
1428                         break;
1429
1430                 case LFUN_FORKS_KILL:
1431                         if (isStrInt(argument))
1432                                 ForkedcallsController::get().kill(strToInt(argument));
1433                         break;
1434
1435                 case LFUN_TOOLTIPS_TOGGLE:
1436                         owner->getDialogs().toggleTooltips();
1437                         break;
1438
1439                 case LFUN_EXTERNAL_EDIT:
1440                         InsetExternal().dispatch(FuncRequest(view(), action, argument));
1441                         break;
1442
1443                 default: {
1444                                 DispatchResult result =
1445                                         view()->cursor().dispatch(FuncRequest(func, view()));
1446                                 if (result.dispatched())
1447                                         lyxerr << "dispatched by Cursor::dispatch()" << endl;
1448                                 else
1449                                         lyxerr << "### NOT DISPATCHED BY Cursor::dispatch() ###" << endl;
1450                                 break;
1451                         }
1452                 }
1453         }
1454
1455         view()->owner()->updateLayoutChoice();
1456
1457         if (view()->available()) {
1458                 view()->fitCursor();
1459                 view()->update();
1460                 view()->cursor().updatePos();
1461                 // if we executed a mutating lfun, mark the buffer as dirty
1462                 if (!getStatus(func).disabled()
1463                     && !lyxaction.funcHasFlag(func.action, LyXAction::NoBuffer)
1464                     && !lyxaction.funcHasFlag(func.action, LyXAction::ReadOnly))
1465                         view()->buffer()->markDirty();
1466         }
1467
1468         sendDispatchMessage(getMessage(), func, verbose);
1469 }
1470
1471
1472 void LyXFunc::sendDispatchMessage(string const & msg,
1473                                   FuncRequest const & func, bool verbose)
1474 {
1475         owner->updateMenubar();
1476         owner->updateToolbar();
1477
1478         if (func.action == LFUN_SELFINSERT || !verbose) {
1479                 lyxerr[Debug::ACTION] << "dispatch msg is " << msg << endl;
1480                 if (!msg.empty())
1481                         owner->message(msg);
1482                 return;
1483         }
1484
1485         string dispatch_msg = msg;
1486         if (!dispatch_msg.empty())
1487                 dispatch_msg += ' ';
1488
1489         string comname = lyxaction.getActionName(func.action);
1490
1491         bool argsadded = false;
1492
1493         if (!func.argument.empty()) {
1494                 if (func.action != LFUN_UNKNOWN_ACTION) {
1495                         comname += ' ' + func.argument;
1496                         argsadded = true;
1497                 }
1498         }
1499
1500         string const shortcuts = toplevel_keymap->findbinding(func);
1501
1502         if (!shortcuts.empty()) {
1503                 comname += ": " + shortcuts;
1504         } else if (!argsadded && !func.argument.empty()) {
1505                 comname += ' ' + func.argument;
1506         }
1507
1508         if (!comname.empty()) {
1509                 comname = rtrim(comname);
1510                 dispatch_msg += '(' + comname + ')';
1511         }
1512
1513         lyxerr[Debug::ACTION] << "verbose dispatch msg " << dispatch_msg << endl;
1514         if (!dispatch_msg.empty())
1515                 owner->message(dispatch_msg);
1516 }
1517
1518
1519 void LyXFunc::setupLocalKeymap()
1520 {
1521         keyseq.stdmap = toplevel_keymap.get();
1522         keyseq.curmap = toplevel_keymap.get();
1523         cancel_meta_seq.stdmap = toplevel_keymap.get();
1524         cancel_meta_seq.curmap = toplevel_keymap.get();
1525 }
1526
1527
1528 void LyXFunc::menuNew(string const & name, bool fromTemplate)
1529 {
1530         string initpath = lyxrc.document_path;
1531         string filename(name);
1532
1533         if (view()->available()) {
1534                 string const trypath = owner->buffer()->filePath();
1535                 // If directory is writeable, use this as default.
1536                 if (IsDirWriteable(trypath))
1537                         initpath = trypath;
1538         }
1539
1540         static int newfile_number;
1541
1542         if (filename.empty()) {
1543                 filename = AddName(lyxrc.document_path,
1544                             "newfile" + tostr(++newfile_number) + ".lyx");
1545                 FileInfo fi(filename);
1546                 while (bufferlist.exists(filename) || fi.readable()) {
1547                         ++newfile_number;
1548                         filename = AddName(lyxrc.document_path,
1549                                     "newfile" + tostr(newfile_number) +
1550                                     ".lyx");
1551                         fi.newFile(filename);
1552                 }
1553         }
1554
1555         // The template stuff
1556         string templname;
1557         if (fromTemplate) {
1558                 FileDialog fileDlg(_("Select template file"),
1559                         LFUN_SELECT_FILE_SYNC,
1560                         make_pair(string(_("Documents|#o#O")),
1561                                   string(lyxrc.document_path)),
1562                         make_pair(string(_("Templates|#T#t")),
1563                                   string(lyxrc.template_path)));
1564
1565                 FileDialog::Result result =
1566                         fileDlg.open(lyxrc.template_path,
1567                                        _("*.lyx| LyX Documents (*.lyx)"));
1568
1569                 if (result.first == FileDialog::Later)
1570                         return;
1571                 if (result.second.empty())
1572                         return;
1573                 templname = result.second;
1574         }
1575
1576         view()->newFile(filename, templname, !name.empty());
1577 }
1578
1579
1580 void LyXFunc::open(string const & fname)
1581 {
1582         string initpath = lyxrc.document_path;
1583
1584         if (view()->available()) {
1585                 string const trypath = owner->buffer()->filePath();
1586                 // If directory is writeable, use this as default.
1587                 if (IsDirWriteable(trypath))
1588                         initpath = trypath;
1589         }
1590
1591         string filename;
1592
1593         if (fname.empty()) {
1594                 FileDialog fileDlg(_("Select document to open"),
1595                         LFUN_FILE_OPEN,
1596                         make_pair(string(_("Documents|#o#O")),
1597                                   string(lyxrc.document_path)),
1598                         make_pair(string(_("Examples|#E#e")),
1599                                   string(AddPath(system_lyxdir(), "examples"))));
1600
1601                 FileDialog::Result result =
1602                         fileDlg.open(initpath,
1603                                        _("*.lyx| LyX Documents (*.lyx)"));
1604
1605                 if (result.first == FileDialog::Later)
1606                         return;
1607
1608                 filename = result.second;
1609
1610                 // check selected filename
1611                 if (filename.empty()) {
1612                         owner->message(_("Canceled."));
1613                         return;
1614                 }
1615         } else
1616                 filename = fname;
1617
1618         // get absolute path of file and add ".lyx" to the filename if
1619         // necessary
1620         string const fullpath = FileSearch(string(), filename, "lyx");
1621         if (!fullpath.empty()) {
1622                 filename = fullpath;
1623         }
1624
1625         string const disp_fn(MakeDisplayPath(filename));
1626
1627         // if the file doesn't exist, let the user create one
1628         FileInfo const f(filename, true);
1629         if (!f.exist()) {
1630                 // the user specifically chose this name. Believe them.
1631                 view()->newFile(filename, "", true);
1632                 return;
1633         }
1634
1635         owner->message(bformat(_("Opening document %1$s..."), disp_fn));
1636
1637         string str2;
1638         if (view()->loadLyXFile(filename)) {
1639                 str2 = bformat(_("Document %1$s opened."), disp_fn);
1640         } else {
1641                 str2 = bformat(_("Could not open document %1$s"), disp_fn);
1642         }
1643         owner->message(str2);
1644 }
1645
1646
1647 void LyXFunc::doImport(string const & argument)
1648 {
1649         string format;
1650         string filename = split(argument, format, ' ');
1651
1652         lyxerr[Debug::INFO] << "LyXFunc::doImport: " << format
1653                             << " file: " << filename << endl;
1654
1655         // need user interaction
1656         if (filename.empty()) {
1657                 string initpath = lyxrc.document_path;
1658
1659                 if (view()->available()) {
1660                         string const trypath = owner->buffer()->filePath();
1661                         // If directory is writeable, use this as default.
1662                         if (IsDirWriteable(trypath))
1663                                 initpath = trypath;
1664                 }
1665
1666                 string const text = bformat(_("Select %1$s file to import"),
1667                         formats.prettyName(format));
1668
1669                 FileDialog fileDlg(text,
1670                         LFUN_IMPORT,
1671                         make_pair(string(_("Documents|#o#O")),
1672                                   string(lyxrc.document_path)),
1673                         make_pair(string(_("Examples|#E#e")),
1674                                   string(AddPath(system_lyxdir(), "examples"))));
1675
1676                 string const extension = "*." + formats.extension(format)
1677                         + "| " + formats.prettyName(format)
1678                         + " (*." + formats.extension(format) + ')';
1679
1680                 FileDialog::Result result = fileDlg.open(initpath,
1681                                                            extension);
1682
1683                 if (result.first == FileDialog::Later)
1684                         return;
1685
1686                 filename = result.second;
1687
1688                 // check selected filename
1689                 if (filename.empty())
1690                         owner->message(_("Canceled."));
1691         }
1692
1693         if (filename.empty())
1694                 return;
1695
1696         // get absolute path of file
1697         filename = MakeAbsPath(filename);
1698
1699         string const lyxfile = ChangeExtension(filename, ".lyx");
1700
1701         // Check if the document already is open
1702         if (lyx_gui::use_gui && bufferlist.exists(lyxfile)) {
1703                 if (!bufferlist.close(bufferlist.getBuffer(lyxfile), true)) {
1704                         owner->message(_("Canceled."));
1705                         return;
1706                 }
1707         }
1708
1709         // if the file exists already, and we didn't do
1710         // -i lyx thefile.lyx, warn
1711         if (FileInfo(lyxfile, true).exist() && filename != lyxfile) {
1712                 string const file = MakeDisplayPath(lyxfile, 30);
1713
1714                 string text = bformat(_("The document %1$s already exists.\n\n"
1715                         "Do you want to over-write that document?"), file);
1716                 int const ret = Alert::prompt(_("Over-write document?"),
1717                         text, 0, 1, _("&Over-write"), _("&Cancel"));
1718
1719                 if (ret == 1) {
1720                         owner->message(_("Canceled."));
1721                         return;
1722                 }
1723         }
1724
1725         Importer::Import(owner, filename, format);
1726 }
1727
1728
1729 void LyXFunc::closeBuffer()
1730 {
1731         if (bufferlist.close(owner->buffer(), true) && !quitting) {
1732                 if (bufferlist.empty()) {
1733                         // need this otherwise SEGV may occur while
1734                         // trying to set variables that don't exist
1735                         // since there's no current buffer
1736                         owner->getDialogs().hideBufferDependent();
1737                 } else {
1738                         view()->buffer(bufferlist.first());
1739                 }
1740         }
1741 }
1742
1743
1744 // Each "owner" should have it's own message method. lyxview and
1745 // the minibuffer would use the minibuffer, but lyxserver would
1746 // send an ERROR signal to its client.  Alejandro 970603
1747 // This func is bit problematic when it comes to NLS, to make the
1748 // lyx servers client be language indepenent we must not translate
1749 // strings sent to this func.
1750 void LyXFunc::setErrorMessage(string const & m) const
1751 {
1752         dispatch_buffer = m;
1753         errorstat = true;
1754 }
1755
1756
1757 void LyXFunc::setMessage(string const & m) const
1758 {
1759         dispatch_buffer = m;
1760 }
1761
1762
1763 void LyXFunc::setStatusMessage(string const & m) const
1764 {
1765         status_buffer = m;
1766 }
1767
1768
1769 string const LyXFunc::view_status_message()
1770 {
1771         // When meta-fake key is pressed, show the key sequence so far + "M-".
1772         if (wasMetaKey()) {
1773                 return keyseq.print() + "M-";
1774         }
1775
1776         // Else, when a non-complete key sequence is pressed,
1777         // show the available options.
1778         if (keyseq.length() > 0 && !keyseq.deleted()) {
1779                 return keyseq.printOptions();
1780         }
1781
1782         if (!view()->available())
1783                 return _("Welcome to LyX!");
1784
1785         return currentState(view());
1786 }
1787
1788
1789 BufferView * LyXFunc::view() const
1790 {
1791         BOOST_ASSERT(owner);
1792         return owner->view().get();
1793 }
1794
1795
1796 bool LyXFunc::wasMetaKey() const
1797 {
1798         return (meta_fake_bit != key_modifier::none);
1799 }