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1 /**
2  * \file LyXFunc.cpp
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 "LayoutFile.h"
25 #include "BranchList.h"
26 #include "buffer_funcs.h"
27 #include "Buffer.h"
28 #include "BufferList.h"
29 #include "BufferParams.h"
30 #include "BufferView.h"
31 #include "CmdDef.h"
32 #include "Color.h"
33 #include "Converter.h"
34 #include "Cursor.h"
35 #include "CutAndPaste.h"
36 #include "DispatchResult.h"
37 #include "Encoding.h"
38 #include "ErrorList.h"
39 #include "Format.h"
40 #include "FuncRequest.h"
41 #include "FuncStatus.h"
42 #include "InsetIterator.h"
43 #include "Intl.h"
44 #include "KeyMap.h"
45 #include "Language.h"
46 #include "Lexer.h"
47 #include "LyXAction.h"
48 #include "lyxfind.h"
49 #include "LyX.h"
50 #include "LyXRC.h"
51 #include "LyXVC.h"
52 #include "Paragraph.h"
53 #include "ParagraphParameters.h"
54 #include "ParIterator.h"
55 #include "Row.h"
56 #include "Server.h"
57 #include "Session.h"
58
59 #include "insets/InsetBox.h"
60 #include "insets/InsetBranch.h"
61 #include "insets/InsetCommand.h"
62 #include "insets/InsetERT.h"
63 #include "insets/InsetExternal.h"
64 #include "insets/InsetFloat.h"
65 #include "insets/InsetListings.h"
66 #include "insets/InsetGraphics.h"
67 #include "insets/InsetInclude.h"
68 #include "insets/InsetNote.h"
69 #include "insets/InsetSpace.h"
70 #include "insets/InsetTabular.h"
71 #include "insets/InsetVSpace.h"
72 #include "insets/InsetWrap.h"
73
74 #include "frontends/alert.h"
75 #include "frontends/Application.h"
76 #include "frontends/KeySymbol.h"
77 #include "frontends/LyXView.h"
78 #include "frontends/Selection.h"
79
80 #include "support/debug.h"
81 #include "support/environment.h"
82 #include "support/FileName.h"
83 #include "support/filetools.h"
84 #include "support/gettext.h"
85 #include "support/lstrings.h"
86 #include "support/Path.h"
87 #include "support/Package.h"
88 #include "support/Systemcall.h"
89 #include "support/convert.h"
90 #include "support/os.h"
91
92 #include <sstream>
93 #include <vector>
94
95 using namespace std;
96 using namespace lyx::support;
97
98 namespace lyx {
99
100 using frontend::LyXView;
101
102 namespace Alert = frontend::Alert;
103
104 namespace {
105
106
107 // This function runs "configure" and then rereads lyx.defaults to
108 // reconfigure the automatic settings.
109 void reconfigure(LyXView * lv, string const & option)
110 {
111         // emit message signal.
112         if (lv)
113                 lv->message(_("Running configure..."));
114
115         // Run configure in user lyx directory
116         PathChanger p(package().user_support());
117         string configure_command = package().configure_command();
118         configure_command += option;
119         Systemcall one;
120         int ret = one.startscript(Systemcall::Wait, configure_command);
121         p.pop();
122         // emit message signal.
123         if (lv)
124                 lv->message(_("Reloading configuration..."));
125         lyxrc.read(libFileSearch(string(), "lyxrc.defaults"));
126         // Re-read packages.lst
127         LaTeXFeatures::getAvailable();
128
129         if (ret)
130                 Alert::information(_("System reconfiguration failed"),
131                            _("The system reconfiguration has failed.\n"
132                                   "Default textclass is used but LyX may "
133                                   "not be able to work properly.\n"
134                                   "Please reconfigure again if needed."));
135         else
136
137                 Alert::information(_("System reconfigured"),
138                            _("The system has been reconfigured.\n"
139                              "You need to restart LyX to make use of any\n"
140                              "updated document class specifications."));
141 }
142
143
144 bool getLocalStatus(Cursor cursor, FuncRequest const & cmd, FuncStatus & status)
145 {
146         // Try to fix cursor in case it is broken.
147         cursor.fixIfBroken();
148
149         // This is, of course, a mess. Better create a new doc iterator and use
150         // this in Inset::getStatus. This might require an additional
151         // BufferView * arg, though (which should be avoided)
152         //Cursor safe = *this;
153         bool res = false;
154         for ( ; cursor.depth(); cursor.pop()) {
155                 //lyxerr << "\nCursor::getStatus: cmd: " << cmd << endl << *this << endl;
156                 LASSERT(cursor.idx() <= cursor.lastidx(), /**/);
157                 LASSERT(cursor.pit() <= cursor.lastpit(), /**/);
158                 LASSERT(cursor.pos() <= cursor.lastpos(), /**/);
159
160                 // The inset's getStatus() will return 'true' if it made
161                 // a definitive decision on whether it want to handle the
162                 // request or not. The result of this decision is put into
163                 // the 'status' parameter.
164                 if (cursor.inset().getStatus(cursor, cmd, status)) {
165                         res = true;
166                         break;
167                 }
168         }
169         return res;
170 }
171
172
173 /** Return the change status at cursor position, taking in account the
174  * status at each level of the document iterator (a table in a deleted
175  * footnote is deleted).
176  * When \param outer is true, the top slice is not looked at.
177  */
178 Change::Type lookupChangeType(DocIterator const & dit, bool outer = false)
179 {
180         size_t const depth = dit.depth() - (outer ? 1 : 0);
181
182         for (size_t i = 0 ; i < depth ; ++i) {
183                 CursorSlice const & slice = dit[i];
184                 if (!slice.inset().inMathed()
185                     && slice.pos() < slice.paragraph().size()) {
186                         Change::Type const ch = slice.paragraph().lookupChange(slice.pos()).type;
187                         if (ch != Change::UNCHANGED)
188                                 return ch;
189                 }
190         }
191         return Change::UNCHANGED;
192 }
193
194 }
195
196
197 LyXFunc::LyXFunc()
198         : lyx_view_(0), encoded_last_key(0), meta_fake_bit(NoModifier)
199 {
200 }
201
202
203 void LyXFunc::initKeySequences(KeyMap * kb)
204 {
205         keyseq = KeySequence(kb, kb);
206         cancel_meta_seq = KeySequence(kb, kb);
207 }
208
209
210 void LyXFunc::setLyXView(LyXView * lv)
211 {
212         if (lyx_view_ && lyx_view_->view() && lyx_view_ != lv)
213                 // save current selection to the selection buffer to allow
214                 // middle-button paste in another window
215                 cap::saveSelection(lyx_view_->view()->cursor());
216         lyx_view_ = lv;
217 }
218
219
220 void LyXFunc::handleKeyFunc(FuncCode action)
221 {
222         char_type c = encoded_last_key;
223
224         if (keyseq.length())
225                 c = 0;
226
227         LASSERT(lyx_view_ && lyx_view_->view(), /**/);
228         lyx_view_->view()->getIntl().getTransManager().deadkey(
229                 c, get_accent(action).accent, view()->cursor().innerText(), view()->cursor());
230         // Need to clear, in case the minibuffer calls these
231         // actions
232         keyseq.clear();
233         // copied verbatim from do_accent_char
234         view()->cursor().resetAnchor();
235         view()->processUpdateFlags(Update::FitCursor);
236 }
237
238 //FIXME: bookmark handling is a frontend issue. This code should be transferred
239 // to GuiView and be GuiView and be window dependent.
240 void LyXFunc::gotoBookmark(unsigned int idx, bool openFile, bool switchToBuffer)
241 {
242         LASSERT(lyx_view_, /**/);
243         if (!LyX::ref().session().bookmarks().isValid(idx))
244                 return;
245         BookmarksSection::Bookmark const & bm = LyX::ref().session().bookmarks().bookmark(idx);
246         LASSERT(!bm.filename.empty(), /**/);
247         string const file = bm.filename.absFilename();
248         // if the file is not opened, open it.
249         if (!theBufferList().exists(file)) {
250                 if (openFile)
251                         dispatch(FuncRequest(LFUN_FILE_OPEN, file));
252                 else
253                         return;
254         }
255         // open may fail, so we need to test it again
256         if (!theBufferList().exists(file))
257                 return;
258
259         // if the current buffer is not that one, switch to it.
260         if (lyx_view_->buffer()->absFileName() != file) {
261                 if (!switchToBuffer)
262                         return;
263                 dispatch(FuncRequest(LFUN_BUFFER_SWITCH, file));
264         }
265         // moveToPosition try paragraph id first and then paragraph (pit, pos).
266         if (!view()->moveToPosition(bm.bottom_pit, bm.bottom_pos,
267                 bm.top_id, bm.top_pos))
268                 return;
269
270         // Cursor jump succeeded!
271         Cursor const & cur = view()->cursor();
272         pit_type new_pit = cur.pit();
273         pos_type new_pos = cur.pos();
274         int new_id = cur.paragraph().id();
275
276         // if bottom_pit, bottom_pos or top_id has been changed, update bookmark
277         // see http://bugzilla.lyx.org/show_bug.cgi?id=3092
278         if (bm.bottom_pit != new_pit || bm.bottom_pos != new_pos 
279                 || bm.top_id != new_id) {
280                 const_cast<BookmarksSection::Bookmark &>(bm).updatePos(
281                         new_pit, new_pos, new_id);
282         }
283 }
284
285
286 void LyXFunc::processKeySym(KeySymbol const & keysym, KeyModifier state)
287 {
288         LYXERR(Debug::KEY, "KeySym is " << keysym.getSymbolName());
289
290         // Do nothing if we have nothing (JMarc)
291         if (!keysym.isOK()) {
292                 LYXERR(Debug::KEY, "Empty kbd action (probably composing)");
293                 lyx_view_->restartCursor();
294                 return;
295         }
296
297         if (keysym.isModifier()) {
298                 LYXERR(Debug::KEY, "isModifier true");
299                 if (lyx_view_)
300                         lyx_view_->restartCursor();
301                 return;
302         }
303
304         //Encoding const * encoding = view()->cursor().getEncoding();
305         //encoded_last_key = keysym.getISOEncoded(encoding ? encoding->name() : "");
306         // FIXME: encoded_last_key shadows the member variable of the same
307         // name. Is that intended?
308         char_type encoded_last_key = keysym.getUCSEncoded();
309
310         // Do a one-deep top-level lookup for
311         // cancel and meta-fake keys. RVDK_PATCH_5
312         cancel_meta_seq.reset();
313
314         FuncRequest func = cancel_meta_seq.addkey(keysym, state);
315         LYXERR(Debug::KEY, "action first set to [" << func.action << ']');
316
317         // When not cancel or meta-fake, do the normal lookup.
318         // Note how the meta_fake Mod1 bit is OR-ed in and reset afterwards.
319         // Mostly, meta_fake_bit = NoModifier. RVDK_PATCH_5.
320         if ((func.action != LFUN_CANCEL) && (func.action != LFUN_META_PREFIX)) {
321                 // remove Caps Lock and Mod2 as a modifiers
322                 func = keyseq.addkey(keysym, (state | meta_fake_bit));
323                 LYXERR(Debug::KEY, "action now set to [" << func.action << ']');
324         }
325
326         // Dont remove this unless you know what you are doing.
327         meta_fake_bit = NoModifier;
328
329         // Can this happen now ?
330         if (func.action == LFUN_NOACTION)
331                 func = FuncRequest(LFUN_COMMAND_PREFIX);
332
333         LYXERR(Debug::KEY, " Key [action=" << func.action << "]["
334                 << keyseq.print(KeySequence::Portable) << ']');
335
336         // already here we know if it any point in going further
337         // why not return already here if action == -1 and
338         // num_bytes == 0? (Lgb)
339
340         if (keyseq.length() > 1)
341                 lyx_view_->message(keyseq.print(KeySequence::ForGui));
342
343
344         // Maybe user can only reach the key via holding down shift.
345         // Let's see. But only if shift is the only modifier
346         if (func.action == LFUN_UNKNOWN_ACTION && state == ShiftModifier) {
347                 LYXERR(Debug::KEY, "Trying without shift");
348                 func = keyseq.addkey(keysym, NoModifier);
349                 LYXERR(Debug::KEY, "Action now " << func.action);
350         }
351
352         if (func.action == LFUN_UNKNOWN_ACTION) {
353                 // Hmm, we didn't match any of the keysequences. See
354                 // if it's normal insertable text not already covered
355                 // by a binding
356                 if (keysym.isText() && keyseq.length() == 1) {
357                         LYXERR(Debug::KEY, "isText() is true, inserting.");
358                         func = FuncRequest(LFUN_SELF_INSERT,
359                                            FuncRequest::KEYBOARD);
360                 } else {
361                         LYXERR(Debug::KEY, "Unknown, !isText() - giving up");
362                         lyx_view_->message(_("Unknown function."));
363                         lyx_view_->restartCursor();
364                         return;
365                 }
366         }
367
368         if (func.action == LFUN_SELF_INSERT) {
369                 if (encoded_last_key != 0) {
370                         docstring const arg(1, encoded_last_key);
371                         dispatch(FuncRequest(LFUN_SELF_INSERT, arg,
372                                              FuncRequest::KEYBOARD));
373                         LYXERR(Debug::KEY, "SelfInsert arg[`" << to_utf8(arg) << "']");
374                 }
375         } else {
376                 dispatch(func);
377                 if (!lyx_view_)
378                         return;
379         }
380
381         if (lyx_view_)
382                 lyx_view_->restartCursor();
383 }
384
385
386 FuncStatus LyXFunc::getStatus(FuncRequest const & cmd) const
387 {
388         //lyxerr << "LyXFunc::getStatus: cmd: " << cmd << endl;
389         FuncStatus flag;
390
391         Buffer * buf = lyx_view_ ? lyx_view_->buffer() : 0;
392
393         if (cmd.action == LFUN_NOACTION) {
394                 flag.message(from_utf8(N_("Nothing to do")));
395                 flag.enabled(false);
396                 return flag;
397         }
398
399         switch (cmd.action) {
400         case LFUN_UNKNOWN_ACTION:
401 #ifndef HAVE_LIBAIKSAURUS
402         case LFUN_THESAURUS_ENTRY:
403 #endif
404                 flag.unknown(true);
405                 flag.enabled(false);
406                 break;
407
408         default:
409                 break;
410         }
411
412         if (flag.unknown()) {
413                 flag.message(from_utf8(N_("Unknown action")));
414                 return flag;
415         }
416
417         if (!flag.enabled()) {
418                 if (flag.message().empty())
419                         flag.message(from_utf8(N_("Command disabled")));
420                 return flag;
421         }
422
423         // Check whether we need a buffer
424         if (!lyxaction.funcHasFlag(cmd.action, LyXAction::NoBuffer) && !buf) {
425                 // no, exit directly
426                 flag.message(from_utf8(N_("Command not allowed with"
427                                     "out any document open")));
428                 flag.enabled(false);
429                 return flag;
430         }
431
432         // I would really like to avoid having this switch and rather try to
433         // encode this in the function itself.
434         // -- And I'd rather let an inset decide which LFUNs it is willing
435         // to handle (Andre')
436         bool enable = true;
437         switch (cmd.action) {
438
439         // FIXME: these cases should be hidden in GuiApplication::getStatus().
440         case LFUN_WINDOW_CLOSE:
441                 if (theApp())
442                         return theApp()->getStatus(cmd);
443                 enable = false;
444                 break;
445
446         // FIXME: these cases should be hidden in GuiView::getStatus().
447         case LFUN_DIALOG_TOGGLE:
448         case LFUN_DIALOG_SHOW:
449         case LFUN_UI_TOGGLE:
450         case LFUN_DIALOG_UPDATE:
451                 // FIXME: add special handling for about and prefs dialogs here
452                 // which do not depend on GuiView.
453                 if (lyx_view_)
454                         return lyx_view_->getStatus(cmd);
455                 else
456                         enable = false;
457                 break;
458
459         case LFUN_TOOLBAR_TOGGLE:
460         case LFUN_INSET_APPLY:
461         case LFUN_BUFFER_WRITE:
462         case LFUN_BUFFER_WRITE_AS:
463         case LFUN_SPLIT_VIEW:
464         case LFUN_CLOSE_TAB_GROUP:
465         case LFUN_COMPLETION_POPUP:
466         case LFUN_COMPLETION_INLINE:
467         case LFUN_COMPLETION_COMPLETE:
468                 if (lyx_view_)
469                         return lyx_view_->getStatus(cmd);
470                 enable = false;
471                 break;
472
473         case LFUN_BUFFER_TOGGLE_READ_ONLY:
474                 flag.setOnOff(buf->isReadonly());
475                 break;
476
477         case LFUN_BUFFER_SWITCH:
478                 // toggle on the current buffer, but do not toggle off
479                 // the other ones (is that a good idea?)
480                 if (buf && to_utf8(cmd.argument()) == buf->absFileName())
481                         flag.setOnOff(true);
482                 break;
483
484         case LFUN_BUFFER_EXPORT:
485                 enable = cmd.argument() == "custom"
486                         || buf->isExportable(to_utf8(cmd.argument()));
487                 break;
488
489         case LFUN_BUFFER_CHKTEX:
490                 enable = buf->isLatex() && !lyxrc.chktex_command.empty();
491                 break;
492
493         case LFUN_BUILD_PROGRAM:
494                 enable = buf->isExportable("program");
495                 break;
496
497         case LFUN_VC_REGISTER:
498                 enable = !buf->lyxvc().inUse();
499                 break;
500         case LFUN_VC_CHECK_IN:
501                 enable = buf->lyxvc().inUse() && !buf->isReadonly();
502                 break;
503         case LFUN_VC_CHECK_OUT:
504                 enable = buf->lyxvc().inUse() && buf->isReadonly();
505                 break;
506         case LFUN_VC_REVERT:
507         case LFUN_VC_UNDO_LAST:
508                 enable = buf->lyxvc().inUse();
509                 break;
510         case LFUN_BUFFER_RELOAD:
511                 enable = !buf->isUnnamed() && buf->fileName().exists()
512                         && (!buf->isClean() || buf->isExternallyModified(Buffer::timestamp_method));
513                 break;
514
515         case LFUN_CITATION_INSERT: {
516                 FuncRequest fr(LFUN_INSET_INSERT, "citation");
517                 enable = getStatus(fr).enabled();
518                 break;
519         }
520         
521         // This could be used for the no-GUI version. The GUI version is handled in
522         // LyXView::getStatus(). See above.
523         /*
524         case LFUN_BUFFER_WRITE:
525         case LFUN_BUFFER_WRITE_AS: {
526                 Buffer * b = theBufferList().getBuffer(cmd.getArg(0));
527                 enable = b && (b->isUnnamed() || !b->isClean());
528                 break;
529         }
530         */
531
532         case LFUN_BUFFER_WRITE_ALL: {
533                 // We enable the command only if there are some modified buffers
534                 Buffer * first = theBufferList().first();
535                 enable = false;
536                 if (!first)
537                         break;
538                 Buffer * b = first;
539                 // We cannot use a for loop as the buffer list is a cycle.
540                 do {
541                         if (!b->isClean()) {
542                                 enable = true;
543                                 break;
544                         }
545                         b = theBufferList().next(b);
546                 } while (b != first); 
547                 break;
548         }
549
550         case LFUN_BOOKMARK_GOTO: {
551                 const unsigned int num = convert<unsigned int>(to_utf8(cmd.argument()));
552                 enable = LyX::ref().session().bookmarks().isValid(num);
553                 break;
554         }
555
556         case LFUN_BOOKMARK_CLEAR:
557                 enable = LyX::ref().session().bookmarks().size() > 0;
558                 break;
559
560         // this one is difficult to get right. As a half-baked
561         // solution, we consider only the first action of the sequence
562         case LFUN_COMMAND_SEQUENCE: {
563                 // argument contains ';'-terminated commands
564                 string const firstcmd = token(to_utf8(cmd.argument()), ';', 0);
565                 FuncRequest func(lyxaction.lookupFunc(firstcmd));
566                 func.origin = cmd.origin;
567                 flag = getStatus(func);
568                 break;
569         }
570
571         case LFUN_CALL: {
572                 FuncRequest func;
573                 string name = to_utf8(cmd.argument());
574                 if (LyX::ref().topLevelCmdDef().lock(name, func)) {
575                         func.origin = cmd.origin;
576                         flag = getStatus(func);
577                         LyX::ref().topLevelCmdDef().release(name);
578                 } else {
579                         // catch recursion or unknown command definiton
580                         // all operations until the recursion or unknown command 
581                         // definiton occures are performed, so set the state to enabled
582                         enable = true;
583                 }
584                 break;
585         }
586
587         case LFUN_BUFFER_NEW:
588         case LFUN_BUFFER_NEW_TEMPLATE:
589         case LFUN_WORD_FIND_FORWARD:
590         case LFUN_WORD_FIND_BACKWARD:
591         case LFUN_COMMAND_PREFIX:
592         case LFUN_COMMAND_EXECUTE:
593         case LFUN_CANCEL:
594         case LFUN_META_PREFIX:
595         case LFUN_BUFFER_CLOSE:
596         case LFUN_BUFFER_UPDATE:
597         case LFUN_BUFFER_VIEW:
598         case LFUN_MASTER_BUFFER_UPDATE:
599         case LFUN_MASTER_BUFFER_VIEW:
600         case LFUN_BUFFER_IMPORT:
601         case LFUN_BUFFER_AUTO_SAVE:
602         case LFUN_RECONFIGURE:
603         case LFUN_HELP_OPEN:
604         case LFUN_FILE_OPEN:
605         case LFUN_DROP_LAYOUTS_CHOICE:
606         case LFUN_MENU_OPEN:
607         case LFUN_SERVER_GET_NAME:
608         case LFUN_SERVER_NOTIFY:
609         case LFUN_SERVER_GOTO_FILE_ROW:
610         case LFUN_DIALOG_HIDE:
611         case LFUN_DIALOG_DISCONNECT_INSET:
612         case LFUN_BUFFER_CHILD_OPEN:
613         case LFUN_CURSOR_FOLLOWS_SCROLLBAR_TOGGLE:
614         case LFUN_KEYMAP_OFF:
615         case LFUN_KEYMAP_PRIMARY:
616         case LFUN_KEYMAP_SECONDARY:
617         case LFUN_KEYMAP_TOGGLE:
618         case LFUN_REPEAT:
619         case LFUN_BUFFER_EXPORT_CUSTOM:
620         case LFUN_BUFFER_PRINT:
621         case LFUN_PREFERENCES_SAVE:
622         case LFUN_SCREEN_FONT_UPDATE:
623         case LFUN_SET_COLOR:
624         case LFUN_MESSAGE:
625         case LFUN_INSET_EDIT:
626         case LFUN_ALL_INSETS_TOGGLE:
627         case LFUN_BUFFER_LANGUAGE:
628         case LFUN_TEXTCLASS_APPLY:
629         case LFUN_TEXTCLASS_LOAD:
630         case LFUN_BUFFER_SAVE_AS_DEFAULT:
631         case LFUN_BUFFER_PARAMS_APPLY:
632         case LFUN_LAYOUT_MODULES_CLEAR:
633         case LFUN_LAYOUT_MODULE_ADD:
634         case LFUN_LAYOUT_RELOAD:
635         case LFUN_LYXRC_APPLY:
636         case LFUN_BUFFER_NEXT:
637         case LFUN_BUFFER_PREVIOUS:
638         case LFUN_WINDOW_NEW:
639         case LFUN_LYX_QUIT:
640                 // these are handled in our dispatch()
641                 break;
642
643         default:
644                 if (!view()) {
645                         enable = false;
646                         break;
647                 }
648                 if (!getLocalStatus(view()->cursor(), cmd, flag))
649                         flag = view()->getStatus(cmd);
650         }
651
652         if (!enable)
653                 flag.enabled(false);
654
655         // Can we use a readonly buffer?
656         if (buf && buf->isReadonly()
657             && !lyxaction.funcHasFlag(cmd.action, LyXAction::ReadOnly)
658             && !lyxaction.funcHasFlag(cmd.action, LyXAction::NoBuffer)) {
659                 flag.message(from_utf8(N_("Document is read-only")));
660                 flag.enabled(false);
661         }
662
663         // Are we in a DELETED change-tracking region?
664         if (buf && view() 
665                 && lookupChangeType(view()->cursor(), true) == Change::DELETED
666             && !lyxaction.funcHasFlag(cmd.action, LyXAction::ReadOnly)
667             && !lyxaction.funcHasFlag(cmd.action, LyXAction::NoBuffer)) {
668                 flag.message(from_utf8(N_("This portion of the document is deleted.")));
669                 flag.enabled(false);
670         }
671
672         // the default error message if we disable the command
673         if (!flag.enabled() && flag.message().empty())
674                 flag.message(from_utf8(N_("Command disabled")));
675
676         return flag;
677 }
678
679
680 bool LyXFunc::ensureBufferClean(BufferView * bv)
681 {
682         Buffer & buf = bv->buffer();
683         if (buf.isClean())
684                 return true;
685
686         docstring const file = buf.fileName().displayName(30);
687         docstring text = bformat(_("The document %1$s has unsaved "
688                                              "changes.\n\nDo you want to save "
689                                              "the document?"), file);
690         int const ret = Alert::prompt(_("Save changed document?"),
691                                       text, 0, 1, _("&Save"),
692                                       _("&Cancel"));
693
694         if (ret == 0)
695                 dispatch(FuncRequest(LFUN_BUFFER_WRITE));
696
697         return buf.isClean();
698 }
699
700
701 namespace {
702
703 void showPrintError(string const & name)
704 {
705         docstring str = bformat(_("Could not print the document %1$s.\n"
706                                             "Check that your printer is set up correctly."),
707                              makeDisplayPath(name, 50));
708         Alert::error(_("Print document failed"), str);
709 }
710
711
712 bool loadLayoutFile(string const & name, string const & buf_path)
713 {
714         if (!LayoutFileList::get().haveClass(name)) {
715                 lyxerr << "Document class \"" << name
716                        << "\" does not exist."
717                        << endl;
718                 return false;
719         }
720
721         LayoutFile & tc = LayoutFileList::get()[name];
722         if (!tc.load(buf_path)) {
723                 docstring s = bformat(_("The document class %1$s "
724                                    "could not be loaded."), from_utf8(name));
725                 Alert::error(_("Could not load class"), s);
726                 return false;
727         }
728         return true;
729 }
730
731
732 void actOnUpdatedPrefs(LyXRC const & lyxrc_orig, LyXRC const & lyxrc_new);
733
734 } //namespace anon
735
736
737 void LyXFunc::dispatch(FuncRequest const & cmd)
738 {
739         string const argument = to_utf8(cmd.argument());
740         FuncCode const action = cmd.action;
741
742         LYXERR(Debug::ACTION, "\nLyXFunc::dispatch: cmd: " << cmd);
743         //lyxerr << "LyXFunc::dispatch: cmd: " << cmd << endl;
744
745         // we have not done anything wrong yet.
746         errorstat = false;
747         dispatch_buffer.erase();
748
749         // redraw the screen at the end (first of the two drawing steps).
750         //This is done unless explicitely requested otherwise
751         Update::flags updateFlags = Update::FitCursor;
752
753         FuncStatus const flag = getStatus(cmd);
754         if (!flag.enabled()) {
755                 // We cannot use this function here
756                 LYXERR(Debug::ACTION, "LyXFunc::dispatch: "
757                        << lyxaction.getActionName(action)
758                        << " [" << action << "] is disabled at this location");
759                 setErrorMessage(flag.message());
760         } else {
761                 switch (action) {
762
763                 case LFUN_WORD_FIND_FORWARD:
764                 case LFUN_WORD_FIND_BACKWARD: {
765                         LASSERT(lyx_view_ && lyx_view_->view(), /**/);
766                         static docstring last_search;
767                         docstring searched_string;
768
769                         if (!cmd.argument().empty()) {
770                                 last_search = cmd.argument();
771                                 searched_string = cmd.argument();
772                         } else {
773                                 searched_string = last_search;
774                         }
775
776                         if (searched_string.empty())
777                                 break;
778
779                         bool const fw = action == LFUN_WORD_FIND_FORWARD;
780                         docstring const data =
781                                 find2string(searched_string, true, false, fw);
782                         find(view(), FuncRequest(LFUN_WORD_FIND, data));
783                         break;
784                 }
785
786                 case LFUN_COMMAND_PREFIX:
787                         LASSERT(lyx_view_, /**/);
788                         lyx_view_->message(keyseq.printOptions(true));
789                         break;
790
791                 case LFUN_CANCEL:
792                         LASSERT(lyx_view_ && lyx_view_->view(), /**/);
793                         keyseq.reset();
794                         meta_fake_bit = NoModifier;
795                         if (lyx_view_->buffer())
796                                 // cancel any selection
797                                 dispatch(FuncRequest(LFUN_MARK_OFF));
798                         setMessage(from_ascii(N_("Cancel")));
799                         break;
800
801                 case LFUN_META_PREFIX:
802                         meta_fake_bit = AltModifier;
803                         setMessage(keyseq.print(KeySequence::ForGui));
804                         break;
805
806                 case LFUN_BUFFER_TOGGLE_READ_ONLY: {
807                         LASSERT(lyx_view_ && lyx_view_->view() && lyx_view_->buffer(), /**/);
808                         Buffer * buf = lyx_view_->buffer();
809                         if (buf->lyxvc().inUse())
810                                 buf->lyxvc().toggleReadOnly();
811                         else
812                                 buf->setReadonly(!lyx_view_->buffer()->isReadonly());
813                         break;
814                 }
815
816                 // --- Menus -----------------------------------------------
817                 case LFUN_BUFFER_CLOSE:
818                         lyx_view_->closeBuffer();
819                         updateFlags = Update::None;
820                         break;
821
822                 case LFUN_BUFFER_RELOAD: {
823                         LASSERT(lyx_view_ && lyx_view_->buffer(), /**/);
824                         docstring const file = makeDisplayPath(lyx_view_->buffer()->absFileName(), 20);
825                         docstring text = bformat(_("Any changes will be lost. Are you sure "
826                                                              "you want to revert to the saved version of the document %1$s?"), file);
827                         int const ret = Alert::prompt(_("Revert to saved document?"),
828                                 text, 1, 1, _("&Revert"), _("&Cancel"));
829
830                         if (ret == 0)
831                                 reloadBuffer();
832                         break;
833                 }
834
835                 case LFUN_BUFFER_UPDATE:
836                         LASSERT(lyx_view_ && lyx_view_->buffer(), /**/);
837                         lyx_view_->buffer()->doExport(argument, true);
838                         break;
839
840                 case LFUN_BUFFER_VIEW:
841                         LASSERT(lyx_view_ && lyx_view_->buffer(), /**/);
842                         lyx_view_->buffer()->preview(argument);
843                         break;
844
845                 case LFUN_MASTER_BUFFER_UPDATE:
846                         LASSERT(lyx_view_ && lyx_view_->buffer() && lyx_view_->buffer()->masterBuffer(), /**/);
847                         lyx_view_->buffer()->masterBuffer()->doExport(argument, true);
848                         break;
849
850                 case LFUN_MASTER_BUFFER_VIEW:
851                         LASSERT(lyx_view_ && lyx_view_->buffer() && lyx_view_->buffer()->masterBuffer(), /**/);
852                         lyx_view_->buffer()->masterBuffer()->preview(argument);
853                         break;
854
855                 case LFUN_BUILD_PROGRAM:
856                         LASSERT(lyx_view_ && lyx_view_->buffer(), /**/);
857                         lyx_view_->buffer()->doExport("program", true);
858                         break;
859
860                 case LFUN_BUFFER_CHKTEX:
861                         LASSERT(lyx_view_ && lyx_view_->buffer(), /**/);
862                         lyx_view_->buffer()->runChktex();
863                         break;
864
865                 case LFUN_BUFFER_EXPORT:
866                         LASSERT(lyx_view_ && lyx_view_->buffer(), /**/);
867                         if (argument == "custom")
868                                 dispatch(FuncRequest(LFUN_DIALOG_SHOW, "sendto"));
869                         else
870                                 lyx_view_->buffer()->doExport(argument, false);
871                         break;
872
873                 case LFUN_BUFFER_EXPORT_CUSTOM: {
874                         LASSERT(lyx_view_ && lyx_view_->buffer(), /**/);
875                         string format_name;
876                         string command = split(argument, format_name, ' ');
877                         Format const * format = formats.getFormat(format_name);
878                         if (!format) {
879                                 lyxerr << "Format \"" << format_name
880                                        << "\" not recognized!"
881                                        << endl;
882                                 break;
883                         }
884
885                         Buffer * buffer = lyx_view_->buffer();
886
887                         // The name of the file created by the conversion process
888                         string filename;
889
890                         // Output to filename
891                         if (format->name() == "lyx") {
892                                 string const latexname = buffer->latexName(false);
893                                 filename = changeExtension(latexname,
894                                                            format->extension());
895                                 filename = addName(buffer->temppath(), filename);
896
897                                 if (!buffer->writeFile(FileName(filename)))
898                                         break;
899
900                         } else {
901                                 buffer->doExport(format_name, true, filename);
902                         }
903
904                         // Substitute $$FName for filename
905                         if (!contains(command, "$$FName"))
906                                 command = "( " + command + " ) < $$FName";
907                         command = subst(command, "$$FName", filename);
908
909                         // Execute the command in the background
910                         Systemcall call;
911                         call.startscript(Systemcall::DontWait, command);
912                         break;
913                 }
914
915                 case LFUN_BUFFER_PRINT: {
916                         LASSERT(lyx_view_ && lyx_view_->buffer(), /**/);
917                         // FIXME: cmd.getArg() might fail if one of the arguments
918                         // contains double quotes
919                         string target = cmd.getArg(0);
920                         string target_name = cmd.getArg(1);
921                         string command = cmd.getArg(2);
922
923                         if (target.empty()
924                             || target_name.empty()
925                             || command.empty()) {
926                                 lyxerr << "Unable to parse \""
927                                        << argument << '"' << endl;
928                                 break;
929                         }
930                         if (target != "printer" && target != "file") {
931                                 lyxerr << "Unrecognized target \""
932                                        << target << '"' << endl;
933                                 break;
934                         }
935
936                         Buffer * buffer = lyx_view_->buffer();
937
938                         if (!buffer->doExport("dvi", true)) {
939                                 showPrintError(buffer->absFileName());
940                                 break;
941                         }
942
943                         // Push directory path.
944                         string const path = buffer->temppath();
945                         // Prevent the compiler from optimizing away p
946                         FileName pp(path);
947                         PathChanger p(pp);
948
949                         // there are three cases here:
950                         // 1. we print to a file
951                         // 2. we print directly to a printer
952                         // 3. we print using a spool command (print to file first)
953                         Systemcall one;
954                         int res = 0;
955                         string const dviname =
956                                 changeExtension(buffer->latexName(true), "dvi");
957
958                         if (target == "printer") {
959                                 if (!lyxrc.print_spool_command.empty()) {
960                                         // case 3: print using a spool
961                                         string const psname =
962                                                 changeExtension(dviname,".ps");
963                                         command += ' ' + lyxrc.print_to_file
964                                                 + quoteName(psname)
965                                                 + ' '
966                                                 + quoteName(dviname);
967
968                                         string command2 =
969                                                 lyxrc.print_spool_command + ' ';
970                                         if (target_name != "default") {
971                                                 command2 += lyxrc.print_spool_printerprefix
972                                                         + target_name
973                                                         + ' ';
974                                         }
975                                         command2 += quoteName(psname);
976                                         // First run dvips.
977                                         // If successful, then spool command
978                                         res = one.startscript(
979                                                 Systemcall::Wait,
980                                                 command);
981
982                                         if (res == 0)
983                                                 res = one.startscript(
984                                                         Systemcall::DontWait,
985                                                         command2);
986                                 } else {
987                                         // case 2: print directly to a printer
988                                         if (target_name != "default")
989                                                 command += ' ' + lyxrc.print_to_printer + target_name + ' ';
990                                         res = one.startscript(
991                                                 Systemcall::DontWait,
992                                                 command + quoteName(dviname));
993                                 }
994
995                         } else {
996                                 // case 1: print to a file
997                                 FileName const filename(makeAbsPath(target_name,
998                                                         lyx_view_->buffer()->filePath()));
999                                 FileName const dvifile(makeAbsPath(dviname, path));
1000                                 if (filename.exists()) {
1001                                         docstring text = bformat(
1002                                                 _("The file %1$s already exists.\n\n"
1003                                                   "Do you want to overwrite that file?"),
1004                                                 makeDisplayPath(filename.absFilename()));
1005                                         if (Alert::prompt(_("Overwrite file?"),
1006                                             text, 0, 1, _("&Overwrite"), _("&Cancel")) != 0)
1007                                                 break;
1008                                 }
1009                                 command += ' ' + lyxrc.print_to_file
1010                                         + quoteName(filename.toFilesystemEncoding())
1011                                         + ' '
1012                                         + quoteName(dvifile.toFilesystemEncoding());
1013                                 res = one.startscript(Systemcall::DontWait,
1014                                                       command);
1015                         }
1016
1017                         if (res != 0)
1018                                 showPrintError(buffer->absFileName());
1019                         break;
1020                 }
1021
1022                 // FIXME: There is need for a command-line import.
1023                 /*
1024                 case LFUN_BUFFER_IMPORT:
1025                         doImport(argument);
1026                         break;
1027                 */
1028
1029                 case LFUN_BUFFER_AUTO_SAVE:
1030                         lyx_view_->buffer()->autoSave();
1031                         break;
1032
1033                 case LFUN_RECONFIGURE:
1034                         // argument is any additional parameter to the configure.py command
1035                         reconfigure(lyx_view_, argument);
1036                         break;
1037
1038                 case LFUN_HELP_OPEN: {
1039                         LASSERT(lyx_view_, /**/);
1040                         string const arg = argument;
1041                         if (arg.empty()) {
1042                                 setErrorMessage(from_ascii(N_("Missing argument")));
1043                                 break;
1044                         }
1045                         FileName const fname = i18nLibFileSearch("doc", arg, "lyx");
1046                         if (fname.empty()) {
1047                                 lyxerr << "LyX: unable to find documentation file `"
1048                                                          << arg << "'. Bad installation?" << endl;
1049                                 break;
1050                         }
1051                         lyx_view_->message(bformat(_("Opening help file %1$s..."),
1052                                 makeDisplayPath(fname.absFilename())));
1053                         Buffer * buf = lyx_view_->loadDocument(fname, false);
1054                         if (buf) {
1055                                 updateLabels(*buf);
1056                                 lyx_view_->setBuffer(buf);
1057                                 buf->errors("Parse");
1058                         }
1059                         updateFlags = Update::None;
1060                         break;
1061                 }
1062
1063                 // --- version control -------------------------------
1064                 case LFUN_VC_REGISTER:
1065                         LASSERT(lyx_view_ && lyx_view_->buffer(), /**/);
1066                         if (!ensureBufferClean(view()))
1067                                 break;
1068                         if (!lyx_view_->buffer()->lyxvc().inUse()) {
1069                                 lyx_view_->buffer()->lyxvc().registrer();
1070                                 reloadBuffer();
1071                         }
1072                         updateFlags = Update::Force;
1073                         break;
1074
1075                 case LFUN_VC_CHECK_IN:
1076                         LASSERT(lyx_view_ && lyx_view_->buffer(), /**/);
1077                         if (!ensureBufferClean(view()))
1078                                 break;
1079                         if (lyx_view_->buffer()->lyxvc().inUse()
1080                                         && !lyx_view_->buffer()->isReadonly()) {
1081                                 lyx_view_->buffer()->lyxvc().checkIn();
1082                                 reloadBuffer();
1083                         }
1084                         break;
1085
1086                 case LFUN_VC_CHECK_OUT:
1087                         LASSERT(lyx_view_ && lyx_view_->buffer(), /**/);
1088                         if (!ensureBufferClean(view()))
1089                                 break;
1090                         if (lyx_view_->buffer()->lyxvc().inUse()
1091                                         && lyx_view_->buffer()->isReadonly()) {
1092                                 lyx_view_->buffer()->lyxvc().checkOut();
1093                                 reloadBuffer();
1094                         }
1095                         break;
1096
1097                 case LFUN_VC_REVERT:
1098                         LASSERT(lyx_view_ && lyx_view_->buffer(), /**/);
1099                         lyx_view_->buffer()->lyxvc().revert();
1100                         reloadBuffer();
1101                         break;
1102
1103                 case LFUN_VC_UNDO_LAST:
1104                         LASSERT(lyx_view_ && lyx_view_->buffer(), /**/);
1105                         lyx_view_->buffer()->lyxvc().undoLast();
1106                         reloadBuffer();
1107                         break;
1108
1109                 // --- lyxserver commands ----------------------------
1110                 case LFUN_SERVER_GET_NAME:
1111                         LASSERT(lyx_view_ && lyx_view_->buffer(), /**/);
1112                         setMessage(from_utf8(lyx_view_->buffer()->absFileName()));
1113                         LYXERR(Debug::INFO, "FNAME["
1114                                 << lyx_view_->buffer()->absFileName() << ']');
1115                         break;
1116
1117                 case LFUN_SERVER_NOTIFY:
1118                         dispatch_buffer = keyseq.print(KeySequence::Portable);
1119                         theServer().notifyClient(to_utf8(dispatch_buffer));
1120                         break;
1121
1122                 case LFUN_SERVER_GOTO_FILE_ROW: {
1123                         LASSERT(lyx_view_, /**/);
1124                         string file_name;
1125                         int row;
1126                         istringstream is(argument);
1127                         is >> file_name >> row;
1128                         Buffer * buf = 0;
1129                         bool loaded = false;
1130                         if (prefixIs(file_name, package().temp_dir().absFilename()))
1131                                 // Needed by inverse dvi search. If it is a file
1132                                 // in tmpdir, call the apropriated function
1133                                 buf = theBufferList().getBufferFromTmp(file_name);
1134                         else {
1135                                 // Must replace extension of the file to be .lyx
1136                                 // and get full path
1137                                 FileName const s = fileSearch(string(), changeExtension(file_name, ".lyx"), "lyx");
1138                                 // Either change buffer or load the file
1139                                 if (theBufferList().exists(s.absFilename()))
1140                                         buf = theBufferList().getBuffer(s.absFilename());
1141                                 else {
1142                                         buf = lyx_view_->loadDocument(s);
1143                                         loaded = true;
1144                                 }
1145                         }
1146
1147                         if (!buf) {
1148                                 updateFlags = Update::None;
1149                                 break;
1150                         }
1151
1152                         updateLabels(*buf);
1153                         lyx_view_->setBuffer(buf);
1154                         view()->setCursorFromRow(row);
1155                         if (loaded)
1156                                 buf->errors("Parse");
1157                         updateFlags = Update::FitCursor;
1158                         break;
1159                 }
1160
1161
1162                 case LFUN_DIALOG_SHOW_NEW_INSET: {
1163                         LASSERT(lyx_view_, /**/);
1164                         string const name = cmd.getArg(0);
1165                         InsetCode code = insetCode(name);
1166                         string data = trim(to_utf8(cmd.argument()).substr(name.size()));
1167                         bool insetCodeOK = true;
1168                         switch (code) {
1169                         case BIBITEM_CODE:
1170                         case BIBTEX_CODE:
1171                         case INDEX_CODE:
1172                         case LABEL_CODE:
1173                         case NOMENCL_CODE:
1174                         case REF_CODE:
1175                         case TOC_CODE:
1176                         case HYPERLINK_CODE: {
1177                                 InsetCommandParams p(code);
1178                                 data = InsetCommand::params2string(name, p);
1179                                 break;
1180                         } 
1181                         case INCLUDE_CODE: {
1182                                 // data is the include type: one of "include",
1183                                 // "input", "verbatiminput" or "verbatiminput*"
1184                                 if (data.empty())
1185                                         // default type is requested
1186                                         data = "include";
1187                                 InsetCommandParams p(INCLUDE_CODE, data);
1188                                 data = InsetCommand::params2string("include", p);
1189                                 break;
1190                         } 
1191                         case BOX_CODE: {
1192                                 // \c data == "Boxed" || "Frameless" etc
1193                                 InsetBoxParams p(data);
1194                                 data = InsetBox::params2string(p);
1195                                 break;
1196                         } 
1197                         case BRANCH_CODE: {
1198                                 InsetBranchParams p;
1199                                 data = InsetBranch::params2string(p);
1200                                 break;
1201                         } 
1202                         case CITE_CODE: {
1203                                 InsetCommandParams p(CITE_CODE);
1204                                 data = InsetCommand::params2string(name, p);
1205                                 break;
1206                         } 
1207                         case ERT_CODE: {
1208                                 data = InsetERT::params2string(InsetCollapsable::Open);
1209                                 break;
1210                         } 
1211                         case EXTERNAL_CODE: {
1212                                 InsetExternalParams p;
1213                                 Buffer const & buffer = *lyx_view_->buffer();
1214                                 data = InsetExternal::params2string(p, buffer);
1215                                 break;
1216                         } 
1217                         case FLOAT_CODE:  {
1218                                 InsetFloatParams p;
1219                                 data = InsetFloat::params2string(p);
1220                                 break;
1221                         } 
1222                         case LISTINGS_CODE: {
1223                                 InsetListingsParams p;
1224                                 data = InsetListings::params2string(p);
1225                                 break;
1226                         } 
1227                         case GRAPHICS_CODE: {
1228                                 InsetGraphicsParams p;
1229                                 Buffer const & buffer = *lyx_view_->buffer();
1230                                 data = InsetGraphics::params2string(p, buffer);
1231                                 break;
1232                         } 
1233                         case NOTE_CODE: {
1234                                 InsetNoteParams p;
1235                                 data = InsetNote::params2string(p);
1236                                 break;
1237                         } 
1238                         case SPACE_CODE: {
1239                                 InsetSpaceParams p;
1240                                 data = InsetSpace::params2string(p);
1241                                 break;
1242                         } 
1243                         case VSPACE_CODE: {
1244                                 VSpace space;
1245                                 data = InsetVSpace::params2string(space);
1246                                 break;
1247                         } 
1248                         case WRAP_CODE: {
1249                                 InsetWrapParams p;
1250                                 data = InsetWrap::params2string(p);
1251                                 break;
1252                         }
1253                         default:
1254                                 lyxerr << "Inset type '" << name << 
1255                                         "' not recognized in LFUN_DIALOG_SHOW_NEW_INSET" <<  endl;
1256                                 insetCodeOK = false;
1257                                 break;
1258                         } // end switch(code)
1259                         if (insetCodeOK)
1260                                 dispatch(FuncRequest(LFUN_DIALOG_SHOW, name + " " + data));
1261                         break;
1262                 }
1263
1264                 case LFUN_CITATION_INSERT: {
1265                         LASSERT(lyx_view_, /**/);
1266                         if (!argument.empty()) {
1267                                 // we can have one optional argument, delimited by '|'
1268                                 // citation-insert <key>|<text_before>
1269                                 // this should be enhanced to also support text_after
1270                                 // and citation style
1271                                 string arg = argument;
1272                                 string opt1;
1273                                 if (contains(argument, "|")) {
1274                                         arg = token(argument, '|', 0);
1275                                         opt1 = token(argument, '|', 1);
1276                                 }
1277                                 InsetCommandParams icp(CITE_CODE);
1278                                 icp["key"] = from_utf8(arg);
1279                                 if (!opt1.empty())
1280                                         icp["before"] = from_utf8(opt1);
1281                                 string icstr = InsetCommand::params2string("citation", icp);
1282                                 FuncRequest fr(LFUN_INSET_INSERT, icstr);
1283                                 dispatch(fr);
1284                         } else
1285                                 dispatch(FuncRequest(LFUN_DIALOG_SHOW_NEW_INSET, "citation"));
1286                         break;
1287                 }
1288
1289                 case LFUN_BUFFER_CHILD_OPEN: {
1290                         LASSERT(lyx_view_ && lyx_view_->buffer(), /**/);
1291                         Buffer * parent = lyx_view_->buffer();
1292                         FileName filename = makeAbsPath(argument, parent->filePath());
1293                         view()->saveBookmark(false);
1294                         Buffer * child = 0;
1295                         bool parsed = false;
1296                         if (theBufferList().exists(filename.absFilename())) {
1297                                 child = theBufferList().getBuffer(filename.absFilename());
1298                         } else {
1299                                 setMessage(bformat(_("Opening child document %1$s..."),
1300                                         makeDisplayPath(filename.absFilename())));
1301                                 child = lyx_view_->loadDocument(filename, false);
1302                                 parsed = true;
1303                         }
1304                         if (child) {
1305                                 // Set the parent name of the child document.
1306                                 // This makes insertion of citations and references in the child work,
1307                                 // when the target is in the parent or another child document.
1308                                 child->setParent(parent);
1309                                 updateLabels(*child->masterBuffer());
1310                                 lyx_view_->setBuffer(child);
1311                                 if (parsed)
1312                                         child->errors("Parse");
1313                         }
1314
1315                         // If a screen update is required (in case where auto_open is false), 
1316                         // setBuffer() would have taken care of it already. Otherwise we shall 
1317                         // reset the update flag because it can cause a circular problem.
1318                         // See bug 3970.
1319                         updateFlags = Update::None;
1320                         break;
1321                 }
1322
1323                 case LFUN_CURSOR_FOLLOWS_SCROLLBAR_TOGGLE:
1324                         LASSERT(lyx_view_, /**/);
1325                         lyxrc.cursor_follows_scrollbar = !lyxrc.cursor_follows_scrollbar;
1326                         break;
1327
1328                 case LFUN_KEYMAP_OFF:
1329                         LASSERT(lyx_view_ && lyx_view_->view(), /**/);
1330                         lyx_view_->view()->getIntl().keyMapOn(false);
1331                         break;
1332
1333                 case LFUN_KEYMAP_PRIMARY:
1334                         LASSERT(lyx_view_ && lyx_view_->view(), /**/);
1335                         lyx_view_->view()->getIntl().keyMapPrim();
1336                         break;
1337
1338                 case LFUN_KEYMAP_SECONDARY:
1339                         LASSERT(lyx_view_ && lyx_view_->view(), /**/);
1340                         lyx_view_->view()->getIntl().keyMapSec();
1341                         break;
1342
1343                 case LFUN_KEYMAP_TOGGLE:
1344                         LASSERT(lyx_view_ && lyx_view_->view(), /**/);
1345                         lyx_view_->view()->getIntl().toggleKeyMap();
1346                         break;
1347
1348                 case LFUN_REPEAT: {
1349                         // repeat command
1350                         string countstr;
1351                         string rest = split(argument, countstr, ' ');
1352                         istringstream is(countstr);
1353                         int count = 0;
1354                         is >> count;
1355                         lyxerr << "repeat: count: " << count << " cmd: " << rest << endl;
1356                         for (int i = 0; i < count; ++i)
1357                                 dispatch(lyxaction.lookupFunc(rest));
1358                         break;
1359                 }
1360
1361                 case LFUN_COMMAND_SEQUENCE: {
1362                         // argument contains ';'-terminated commands
1363                         string arg = argument;
1364                         while (!arg.empty()) {
1365                                 string first;
1366                                 arg = split(arg, first, ';');
1367                                 FuncRequest func(lyxaction.lookupFunc(first));
1368                                 func.origin = cmd.origin;
1369                                 dispatch(func);
1370                         }
1371                         break;
1372                 }
1373
1374                 case LFUN_CALL: {
1375                         FuncRequest func;
1376                         if (LyX::ref().topLevelCmdDef().lock(argument, func)) {
1377                                 func.origin = cmd.origin;
1378                                 dispatch(func);
1379                                 LyX::ref().topLevelCmdDef().release(argument);
1380                         } else {
1381                                 if (func.action == LFUN_UNKNOWN_ACTION) {
1382                                         // unknown command definition
1383                                         lyxerr << "Warning: unknown command definition `"
1384                                                    << argument << "'"
1385                                                    << endl;
1386                                 } else {
1387                                         // recursion detected
1388                                         lyxerr << "Warning: Recursion in the command definition `"
1389                                                    << argument << "' detected"
1390                                                    << endl;
1391                                 }
1392                         }
1393                         break;
1394                 }
1395
1396                 case LFUN_PREFERENCES_SAVE: {
1397                         lyxrc.write(makeAbsPath("preferences",
1398                                                 package().user_support().absFilename()),
1399                                     false);
1400                         break;
1401                 }
1402
1403                 case LFUN_SET_COLOR: {
1404                         string lyx_name;
1405                         string const x11_name = split(argument, lyx_name, ' ');
1406                         if (lyx_name.empty() || x11_name.empty()) {
1407                                 setErrorMessage(from_ascii(N_(
1408                                                 "Syntax: set-color <lyx_name>"
1409                                                 " <x11_name>")));
1410                                 break;
1411                         }
1412
1413                         bool const graphicsbg_changed =
1414                                 (lyx_name == lcolor.getLyXName(Color_graphicsbg) &&
1415                                  x11_name != lcolor.getX11Name(Color_graphicsbg));
1416
1417                         if (!lcolor.setColor(lyx_name, x11_name)) {
1418                                 setErrorMessage(
1419                                                 bformat(_("Set-color \"%1$s\" failed "
1420                                                                        "- color is undefined or "
1421                                                                        "may not be redefined"),
1422                                                                            from_utf8(lyx_name)));
1423                                 break;
1424                         }
1425
1426                         theApp()->updateColor(lcolor.getFromLyXName(lyx_name));
1427
1428                         if (graphicsbg_changed) {
1429                                 // FIXME: The graphics cache no longer has a changeDisplay method.
1430 #if 0
1431                                 graphics::GCache::get().changeDisplay(true);
1432 #endif
1433                         }
1434                         break;
1435                 }
1436
1437                 case LFUN_MESSAGE:
1438                         LASSERT(lyx_view_, /**/);
1439                         lyx_view_->message(from_utf8(argument));
1440                         break;
1441
1442
1443                 case LFUN_ALL_INSETS_TOGGLE: {
1444                         LASSERT(lyx_view_, /**/);
1445                         string action;
1446                         string const name = split(argument, action, ' ');
1447                         InsetCode const inset_code = insetCode(name);
1448
1449                         Cursor & cur = view()->cursor();
1450                         FuncRequest fr(LFUN_INSET_TOGGLE, action);
1451
1452                         Inset & inset = lyx_view_->buffer()->inset();
1453                         InsetIterator it  = inset_iterator_begin(inset);
1454                         InsetIterator const end = inset_iterator_end(inset);
1455                         for (; it != end; ++it) {
1456                                 if (!it->asInsetMath()
1457                                     && (inset_code == NO_CODE
1458                                     || inset_code == it->lyxCode())) {
1459                                         Cursor tmpcur = cur;
1460                                         tmpcur.pushBackward(*it);
1461                                         it->dispatch(tmpcur, fr);
1462                                 }
1463                         }
1464                         updateFlags = Update::Force | Update::FitCursor;
1465                         break;
1466                 }
1467
1468                 case LFUN_BUFFER_LANGUAGE: {
1469                         LASSERT(lyx_view_, /**/);
1470                         Buffer & buffer = *lyx_view_->buffer();
1471                         Language const * oldL = buffer.params().language;
1472                         Language const * newL = languages.getLanguage(argument);
1473                         if (!newL || oldL == newL)
1474                                 break;
1475
1476                         if (oldL->rightToLeft() == newL->rightToLeft()
1477                             && !buffer.isMultiLingual())
1478                                 buffer.changeLanguage(oldL, newL);
1479                         break;
1480                 }
1481
1482                 case LFUN_BUFFER_SAVE_AS_DEFAULT: {
1483                         string const fname =
1484                                 addName(addPath(package().user_support().absFilename(), "templates/"),
1485                                         "defaults.lyx");
1486                         Buffer defaults(fname);
1487
1488                         istringstream ss(argument);
1489                         Lexer lex;
1490                         lex.setStream(ss);
1491                         int const unknown_tokens = defaults.readHeader(lex);
1492
1493                         if (unknown_tokens != 0) {
1494                                 lyxerr << "Warning in LFUN_BUFFER_SAVE_AS_DEFAULT!\n"
1495                                        << unknown_tokens << " unknown token"
1496                                        << (unknown_tokens == 1 ? "" : "s")
1497                                        << endl;
1498                         }
1499
1500                         if (defaults.writeFile(FileName(defaults.absFileName())))
1501                                 setMessage(bformat(_("Document defaults saved in %1$s"),
1502                                                    makeDisplayPath(fname)));
1503                         else
1504                                 setErrorMessage(from_ascii(N_("Unable to save document defaults")));
1505                         break;
1506                 }
1507
1508                 case LFUN_BUFFER_PARAMS_APPLY: {
1509                         LASSERT(lyx_view_, /**/);
1510                         
1511                         Buffer * buffer = lyx_view_->buffer();
1512                         DocumentClass * oldClass = buffer->params().documentClassPtr();
1513                         Cursor & cur = view()->cursor();
1514                         cur.recordUndoFullDocument();
1515                         
1516                         istringstream ss(argument);
1517                         Lexer lex;
1518                         lex.setStream(ss);
1519                         int const unknown_tokens = buffer->readHeader(lex);
1520
1521                         if (unknown_tokens != 0) {
1522                                 lyxerr << "Warning in LFUN_BUFFER_PARAMS_APPLY!\n"
1523                                                 << unknown_tokens << " unknown token"
1524                                                 << (unknown_tokens == 1 ? "" : "s")
1525                                                 << endl;
1526                         }
1527                         
1528                         updateLayout(oldClass, buffer);
1529                         
1530                         updateFlags = Update::Force | Update::FitCursor;
1531                         // We are most certainly here because of a change in the document
1532                         // It is then better to make sure that all dialogs are in sync with
1533                         // current document settings. LyXView::restartCursor() achieve this.
1534                         lyx_view_->restartCursor();
1535                         break;
1536                 }
1537                 
1538                 case LFUN_LAYOUT_MODULES_CLEAR: {
1539                         LASSERT(lyx_view_, /**/);
1540                         Buffer * buffer = lyx_view_->buffer();
1541                         DocumentClass * oldClass = buffer->params().documentClassPtr();
1542                         view()->cursor().recordUndoFullDocument();
1543                         buffer->params().clearLayoutModules();
1544                         buffer->params().makeDocumentClass();
1545                         updateLayout(oldClass, buffer);
1546                         updateFlags = Update::Force | Update::FitCursor;
1547                         break;
1548                 }
1549                 
1550                 case LFUN_LAYOUT_MODULE_ADD: {
1551                         LASSERT(lyx_view_, /**/);
1552                         Buffer * buffer = lyx_view_->buffer();
1553                         DocumentClass * oldClass = buffer->params().documentClassPtr();
1554                         view()->cursor().recordUndoFullDocument();
1555                         buffer->params().addLayoutModule(argument);
1556                         buffer->params().makeDocumentClass();
1557                         updateLayout(oldClass, buffer);
1558                         updateFlags = Update::Force | Update::FitCursor;
1559                         break;
1560                 }
1561
1562                 case LFUN_TEXTCLASS_APPLY: {
1563                         LASSERT(lyx_view_, /**/);
1564                         Buffer * buffer = lyx_view_->buffer();
1565
1566                         if (!loadLayoutFile(argument, buffer->temppath()) &&
1567                                 !loadLayoutFile(argument, buffer->filePath()))
1568                                 break;
1569
1570                         LayoutFile const * old_layout = buffer->params().baseClass();
1571                         LayoutFile const * new_layout = &(LayoutFileList::get()[argument]);
1572
1573                         if (old_layout == new_layout)
1574                                 // nothing to do
1575                                 break;
1576
1577                         //Save the old, possibly modular, layout for use in conversion.
1578                         DocumentClass * oldDocClass = buffer->params().documentClassPtr();
1579                         view()->cursor().recordUndoFullDocument();
1580                         buffer->params().setBaseClass(argument);
1581                         buffer->params().makeDocumentClass();
1582                         updateLayout(oldDocClass, buffer);
1583                         updateFlags = Update::Force | Update::FitCursor;
1584                         break;
1585                 }
1586                 
1587                 case LFUN_LAYOUT_RELOAD: {
1588                         LASSERT(lyx_view_, /**/);
1589                         Buffer * buffer = lyx_view_->buffer();
1590                         DocumentClass * oldClass = buffer->params().documentClassPtr();
1591                         LayoutFileIndex bc = buffer->params().baseClassID();
1592                         LayoutFileList::get().reset(bc);
1593                         buffer->params().setBaseClass(bc);
1594                         buffer->params().makeDocumentClass();
1595                         updateLayout(oldClass, buffer);
1596                         updateFlags = Update::Force | Update::FitCursor;
1597                         break;
1598                 }
1599
1600                 case LFUN_TEXTCLASS_LOAD:
1601                         loadLayoutFile(argument, lyx_view_->buffer()->temppath()) ||
1602                         loadLayoutFile(argument, lyx_view_->buffer()->filePath());
1603                         break;
1604
1605                 case LFUN_LYXRC_APPLY: {
1606                         LyXRC const lyxrc_orig = lyxrc;
1607
1608                         istringstream ss(argument);
1609                         bool const success = lyxrc.read(ss) == 0;
1610
1611                         if (!success) {
1612                                 lyxerr << "Warning in LFUN_LYXRC_APPLY!\n"
1613                                        << "Unable to read lyxrc data"
1614                                        << endl;
1615                                 break;
1616                         }
1617
1618                         actOnUpdatedPrefs(lyxrc_orig, lyxrc);
1619
1620                         theApp()->resetGui();
1621
1622                         /// We force the redraw in any case because there might be
1623                         /// some screen font changes.
1624                         /// FIXME: only the current view will be updated. the Gui
1625                         /// class is able to furnish the list of views.
1626                         updateFlags = Update::Force;
1627                         break;
1628                 }
1629
1630                 case LFUN_BOOKMARK_GOTO:
1631                         // go to bookmark, open unopened file and switch to buffer if necessary
1632                         gotoBookmark(convert<unsigned int>(to_utf8(cmd.argument())), true, true);
1633                         updateFlags = Update::FitCursor;
1634                         break;
1635
1636                 case LFUN_BOOKMARK_CLEAR:
1637                         LyX::ref().session().bookmarks().clear();
1638                         break;
1639
1640                 default:
1641                         LASSERT(theApp(), /**/);
1642                         // Let the frontend dispatch its own actions.
1643                         if (theApp()->dispatch(cmd))
1644                                 // Nothing more to do.
1645                                 return;
1646
1647                         // Everything below is only for active lyx_view_
1648                         if (lyx_view_ == 0)
1649                                 break;
1650
1651                         // Let the current LyXView dispatch its own actions.
1652                         if (lyx_view_->dispatch(cmd)) {
1653                                 if (lyx_view_->view())
1654                                         updateFlags = lyx_view_->view()->cursor().result().update();
1655                                 break;
1656                         }
1657
1658                         LASSERT(lyx_view_->view(), /**/);
1659                         // Let the current BufferView dispatch its own actions.
1660                         if (view()->dispatch(cmd)) {
1661                                 // The BufferView took care of its own updates if needed.
1662                                 updateFlags = Update::None;
1663                                 break;
1664                         }
1665
1666                         // Let the current Cursor dispatch its own actions.
1667                         Cursor old = view()->cursor();
1668                         view()->cursor().getPos(cursorPosBeforeDispatchX_,
1669                                                 cursorPosBeforeDispatchY_);
1670                         view()->cursor().dispatch(cmd);
1671
1672                         // notify insets we just left
1673                         if (view()->cursor() != old) {
1674                                 old.fixIfBroken();
1675                                 bool badcursor = notifyCursorLeaves(old, view()->cursor());
1676                                 if (badcursor)
1677                                         view()->cursor().fixIfBroken();
1678                         }
1679
1680                         // update completion. We do it here and not in
1681                         // processKeySym to avoid another redraw just for a
1682                         // changed inline completion
1683                         if (cmd.origin == FuncRequest::KEYBOARD) {
1684                                 if (cmd.action == LFUN_SELF_INSERT)
1685                                         lyx_view_->updateCompletion(view()->cursor(), true, true);
1686                                 else if (cmd.action == LFUN_CHAR_DELETE_BACKWARD)
1687                                         lyx_view_->updateCompletion(view()->cursor(), false, true);
1688                                 else
1689                                         lyx_view_->updateCompletion(view()->cursor(), false, false);
1690                         }
1691
1692                         updateFlags = view()->cursor().result().update();
1693                 }
1694
1695                 if (lyx_view_ && lyx_view_->buffer()) {
1696                         // BufferView::update() updates the ViewMetricsInfo and
1697                         // also initializes the position cache for all insets in
1698                         // (at least partially) visible top-level paragraphs.
1699                         // We will redraw the screen only if needed.
1700                         view()->processUpdateFlags(updateFlags);
1701
1702                         // if we executed a mutating lfun, mark the buffer as dirty
1703                         if (flag.enabled()
1704                             && !lyxaction.funcHasFlag(action, LyXAction::NoBuffer)
1705                             && !lyxaction.funcHasFlag(action, LyXAction::ReadOnly))
1706                                 lyx_view_->buffer()->markDirty();                       
1707
1708                         // Do we have a selection?
1709                         theSelection().haveSelection(view()->cursor().selection());
1710                         
1711                         // update gui
1712                         lyx_view_->restartCursor();
1713                 }
1714         }
1715         if (lyx_view_) {
1716                 // Some messages may already be translated, so we cannot use _()
1717                 sendDispatchMessage(translateIfPossible(getMessage()), cmd);
1718         }
1719 }
1720
1721
1722 void LyXFunc::sendDispatchMessage(docstring const & msg, FuncRequest const & cmd)
1723 {
1724         const bool verbose = (cmd.origin == FuncRequest::MENU
1725                               || cmd.origin == FuncRequest::TOOLBAR
1726                               || cmd.origin == FuncRequest::COMMANDBUFFER);
1727
1728         if (cmd.action == LFUN_SELF_INSERT || !verbose) {
1729                 LYXERR(Debug::ACTION, "dispatch msg is " << to_utf8(msg));
1730                 if (!msg.empty())
1731                         lyx_view_->message(msg);
1732                 return;
1733         }
1734
1735         docstring dispatch_msg = msg;
1736         if (!dispatch_msg.empty())
1737                 dispatch_msg += ' ';
1738
1739         docstring comname = from_utf8(lyxaction.getActionName(cmd.action));
1740
1741         bool argsadded = false;
1742
1743         if (!cmd.argument().empty()) {
1744                 if (cmd.action != LFUN_UNKNOWN_ACTION) {
1745                         comname += ' ' + cmd.argument();
1746                         argsadded = true;
1747                 }
1748         }
1749
1750         docstring const shortcuts = theTopLevelKeymap().printBindings(cmd);
1751
1752         if (!shortcuts.empty())
1753                 comname += ": " + shortcuts;
1754         else if (!argsadded && !cmd.argument().empty())
1755                 comname += ' ' + cmd.argument();
1756
1757         if (!comname.empty()) {
1758                 comname = rtrim(comname);
1759                 dispatch_msg += '(' + rtrim(comname) + ')';
1760         }
1761
1762         LYXERR(Debug::ACTION, "verbose dispatch msg " << to_utf8(dispatch_msg));
1763         if (!dispatch_msg.empty())
1764                 lyx_view_->message(dispatch_msg);
1765 }
1766
1767
1768 void LyXFunc::reloadBuffer()
1769 {
1770         FileName filename = lyx_view_->buffer()->fileName();
1771         // The user has already confirmed that the changes, if any, should
1772         // be discarded. So we just release the Buffer and don't call closeBuffer();
1773         theBufferList().release(lyx_view_->buffer());
1774         Buffer * buf = lyx_view_->loadDocument(filename);
1775         docstring const disp_fn = makeDisplayPath(filename.absFilename());
1776         docstring str;
1777         if (buf) {
1778                 updateLabels(*buf);
1779                 lyx_view_->setBuffer(buf);
1780                 buf->errors("Parse");
1781                 str = bformat(_("Document %1$s reloaded."), disp_fn);
1782         } else {
1783                 str = bformat(_("Could not reload document %1$s"), disp_fn);
1784         }
1785         lyx_view_->message(str);
1786 }
1787
1788 // Each "lyx_view_" should have it's own message method. lyxview and
1789 // the minibuffer would use the minibuffer, but lyxserver would
1790 // send an ERROR signal to its client.  Alejandro 970603
1791 // This function is bit problematic when it comes to NLS, to make the
1792 // lyx servers client be language indepenent we must not translate
1793 // strings sent to this func.
1794 void LyXFunc::setErrorMessage(docstring const & m) const
1795 {
1796         dispatch_buffer = m;
1797         errorstat = true;
1798 }
1799
1800
1801 void LyXFunc::setMessage(docstring const & m) const
1802 {
1803         dispatch_buffer = m;
1804 }
1805
1806
1807 docstring LyXFunc::viewStatusMessage()
1808 {
1809         // When meta-fake key is pressed, show the key sequence so far + "M-".
1810         if (wasMetaKey())
1811                 return keyseq.print(KeySequence::ForGui) + "M-";
1812
1813         // Else, when a non-complete key sequence is pressed,
1814         // show the available options.
1815         if (keyseq.length() > 0 && !keyseq.deleted())
1816                 return keyseq.printOptions(true);
1817
1818         LASSERT(lyx_view_, /**/);
1819         if (!lyx_view_->buffer())
1820                 return _("Welcome to LyX!");
1821
1822         return view()->cursor().currentState();
1823 }
1824
1825
1826 BufferView * LyXFunc::view() const
1827 {
1828         LASSERT(lyx_view_, /**/);
1829         return lyx_view_->view();
1830 }
1831
1832
1833 bool LyXFunc::wasMetaKey() const
1834 {
1835         return (meta_fake_bit != NoModifier);
1836 }
1837
1838
1839 void LyXFunc::updateLayout(DocumentClass * oldlayout,Buffer * buffer)
1840 {
1841         lyx_view_->message(_("Converting document to new document class..."));
1842         
1843         StableDocIterator backcur(view()->cursor());
1844         ErrorList & el = buffer->errorList("Class Switch");
1845         cap::switchBetweenClasses(
1846                         oldlayout, buffer->params().documentClassPtr(),
1847                         static_cast<InsetText &>(buffer->inset()), el);
1848
1849         view()->setCursor(backcur.asDocIterator(&(buffer->inset())));
1850
1851         buffer->errors("Class Switch");
1852         updateLabels(*buffer);
1853 }
1854
1855
1856 namespace {
1857
1858 void actOnUpdatedPrefs(LyXRC const & lyxrc_orig, LyXRC const & lyxrc_new)
1859 {
1860         // Why the switch you might ask. It is a trick to ensure that all
1861         // the elements in the LyXRCTags enum is handled. As you can see
1862         // there are no breaks at all. So it is just a huge fall-through.
1863         // The nice thing is that we will get a warning from the compiler
1864         // if we forget an element.
1865         LyXRC::LyXRCTags tag = LyXRC::RC_LAST;
1866         switch (tag) {
1867         case LyXRC::RC_ACCEPT_COMPOUND:
1868         case LyXRC::RC_ALT_LANG:
1869         case LyXRC::RC_PLAINTEXT_ROFF_COMMAND:
1870         case LyXRC::RC_PLAINTEXT_LINELEN:
1871         case LyXRC::RC_AUTOREGIONDELETE:
1872         case LyXRC::RC_AUTORESET_OPTIONS:
1873         case LyXRC::RC_AUTOSAVE:
1874         case LyXRC::RC_AUTO_NUMBER:
1875         case LyXRC::RC_BACKUPDIR_PATH:
1876         case LyXRC::RC_BIBTEX_COMMAND:
1877         case LyXRC::RC_BINDFILE:
1878         case LyXRC::RC_CHECKLASTFILES:
1879         case LyXRC::RC_COMPLETION_CURSOR_TEXT:
1880         case LyXRC::RC_COMPLETION_INLINE_DELAY:
1881         case LyXRC::RC_COMPLETION_INLINE_DOTS:
1882         case LyXRC::RC_COMPLETION_INLINE_MATH:
1883         case LyXRC::RC_COMPLETION_INLINE_TEXT:
1884         case LyXRC::RC_COMPLETION_POPUP_AFTER_COMPLETE:
1885         case LyXRC::RC_COMPLETION_POPUP_DELAY:
1886         case LyXRC::RC_COMPLETION_POPUP_MATH:
1887         case LyXRC::RC_COMPLETION_POPUP_TEXT:
1888         case LyXRC::RC_USELASTFILEPOS:
1889         case LyXRC::RC_LOADSESSION:
1890         case LyXRC::RC_CHKTEX_COMMAND:
1891         case LyXRC::RC_CONVERTER:
1892         case LyXRC::RC_CONVERTER_CACHE_MAXAGE:
1893         case LyXRC::RC_COPIER:
1894         case LyXRC::RC_CURSOR_FOLLOWS_SCROLLBAR:
1895         case LyXRC::RC_CUSTOM_EXPORT_COMMAND:
1896         case LyXRC::RC_CUSTOM_EXPORT_FORMAT:
1897         case LyXRC::RC_DATE_INSERT_FORMAT:
1898         case LyXRC::RC_DEFAULT_LANGUAGE:
1899         case LyXRC::RC_DEFAULT_PAPERSIZE:
1900         case LyXRC::RC_DEFFILE:
1901         case LyXRC::RC_DIALOGS_ICONIFY_WITH_MAIN:
1902         case LyXRC::RC_DISPLAY_GRAPHICS:
1903         case LyXRC::RC_DOCUMENTPATH:
1904                 if (lyxrc_orig.document_path != lyxrc_new.document_path) {
1905                         FileName path(lyxrc_new.document_path);
1906                         if (path.exists() && path.isDirectory())
1907                                 package().document_dir() = FileName(lyxrc.document_path);
1908                 }
1909         case LyXRC::RC_ESC_CHARS:
1910         case LyXRC::RC_EXAMPLEPATH:
1911         case LyXRC::RC_FONT_ENCODING:
1912         case LyXRC::RC_FORMAT:
1913         case LyXRC::RC_GROUP_LAYOUTS:
1914         case LyXRC::RC_INDEX_COMMAND:
1915         case LyXRC::RC_INPUT:
1916         case LyXRC::RC_KBMAP:
1917         case LyXRC::RC_KBMAP_PRIMARY:
1918         case LyXRC::RC_KBMAP_SECONDARY:
1919         case LyXRC::RC_LABEL_INIT_LENGTH:
1920         case LyXRC::RC_LANGUAGE_AUTO_BEGIN:
1921         case LyXRC::RC_LANGUAGE_AUTO_END:
1922         case LyXRC::RC_LANGUAGE_COMMAND_BEGIN:
1923         case LyXRC::RC_LANGUAGE_COMMAND_END:
1924         case LyXRC::RC_LANGUAGE_COMMAND_LOCAL:
1925         case LyXRC::RC_LANGUAGE_GLOBAL_OPTIONS:
1926         case LyXRC::RC_LANGUAGE_PACKAGE:
1927         case LyXRC::RC_LANGUAGE_USE_BABEL:
1928         case LyXRC::RC_MACRO_EDIT_STYLE:
1929         case LyXRC::RC_MAKE_BACKUP:
1930         case LyXRC::RC_MARK_FOREIGN_LANGUAGE:
1931         case LyXRC::RC_MOUSE_WHEEL_SPEED:
1932         case LyXRC::RC_NUMLASTFILES:
1933         case LyXRC::RC_PATH_PREFIX:
1934                 if (lyxrc_orig.path_prefix != lyxrc_new.path_prefix) {
1935                         prependEnvPath("PATH", lyxrc.path_prefix);
1936                 }
1937         case LyXRC::RC_PERS_DICT:
1938         case LyXRC::RC_PREVIEW:
1939         case LyXRC::RC_PREVIEW_HASHED_LABELS:
1940         case LyXRC::RC_PREVIEW_SCALE_FACTOR:
1941         case LyXRC::RC_PRINTCOLLCOPIESFLAG:
1942         case LyXRC::RC_PRINTCOPIESFLAG:
1943         case LyXRC::RC_PRINTER:
1944         case LyXRC::RC_PRINTEVENPAGEFLAG:
1945         case LyXRC::RC_PRINTEXSTRAOPTIONS:
1946         case LyXRC::RC_PRINTFILEEXTENSION:
1947         case LyXRC::RC_PRINTLANDSCAPEFLAG:
1948         case LyXRC::RC_PRINTODDPAGEFLAG:
1949         case LyXRC::RC_PRINTPAGERANGEFLAG:
1950         case LyXRC::RC_PRINTPAPERDIMENSIONFLAG:
1951         case LyXRC::RC_PRINTPAPERFLAG:
1952         case LyXRC::RC_PRINTREVERSEFLAG:
1953         case LyXRC::RC_PRINTSPOOL_COMMAND:
1954         case LyXRC::RC_PRINTSPOOL_PRINTERPREFIX:
1955         case LyXRC::RC_PRINTTOFILE:
1956         case LyXRC::RC_PRINTTOPRINTER:
1957         case LyXRC::RC_PRINT_ADAPTOUTPUT:
1958         case LyXRC::RC_PRINT_COMMAND:
1959         case LyXRC::RC_RTL_SUPPORT:
1960         case LyXRC::RC_SCREEN_DPI:
1961         case LyXRC::RC_SCREEN_FONT_ROMAN:
1962         case LyXRC::RC_SCREEN_FONT_ROMAN_FOUNDRY:
1963         case LyXRC::RC_SCREEN_FONT_SANS:
1964         case LyXRC::RC_SCREEN_FONT_SANS_FOUNDRY:
1965         case LyXRC::RC_SCREEN_FONT_SCALABLE:
1966         case LyXRC::RC_SCREEN_FONT_SIZES:
1967         case LyXRC::RC_SCREEN_FONT_TYPEWRITER:
1968         case LyXRC::RC_SCREEN_FONT_TYPEWRITER_FOUNDRY:
1969         case LyXRC::RC_GEOMETRY_SESSION:
1970         case LyXRC::RC_SCREEN_ZOOM:
1971         case LyXRC::RC_SERVERPIPE:
1972         case LyXRC::RC_SET_COLOR:
1973         case LyXRC::RC_SHOW_BANNER:
1974         case LyXRC::RC_OPEN_BUFFERS_IN_TABS:
1975         case LyXRC::RC_SPELL_COMMAND:
1976         case LyXRC::RC_TEMPDIRPATH:
1977         case LyXRC::RC_TEMPLATEPATH:
1978         case LyXRC::RC_TEX_ALLOWS_SPACES:
1979         case LyXRC::RC_TEX_EXPECTS_WINDOWS_PATHS:
1980                 if (lyxrc_orig.windows_style_tex_paths != lyxrc_new.windows_style_tex_paths) {
1981                         os::windows_style_tex_paths(lyxrc_new.windows_style_tex_paths);
1982                 }
1983         case LyXRC::RC_UIFILE:
1984         case LyXRC::RC_USER_EMAIL:
1985         case LyXRC::RC_USER_NAME:
1986         case LyXRC::RC_USETEMPDIR:
1987         case LyXRC::RC_USE_ALT_LANG:
1988         case LyXRC::RC_USE_CONVERTER_CACHE:
1989         case LyXRC::RC_USE_ESC_CHARS:
1990         case LyXRC::RC_USE_INP_ENC:
1991         case LyXRC::RC_USE_PERS_DICT:
1992         case LyXRC::RC_USE_TOOLTIP:
1993         case LyXRC::RC_USE_PIXMAP_CACHE:
1994         case LyXRC::RC_USE_SPELL_LIB:
1995         case LyXRC::RC_VIEWDVI_PAPEROPTION:
1996         case LyXRC::RC_SORT_LAYOUTS:
1997         case LyXRC::RC_FULL_SCREEN_LIMIT:
1998         case LyXRC::RC_FULL_SCREEN_SCROLLBAR:
1999         case LyXRC::RC_FULL_SCREEN_TABBAR:
2000         case LyXRC::RC_FULL_SCREEN_TOOLBARS:
2001         case LyXRC::RC_FULL_SCREEN_WIDTH:
2002         case LyXRC::RC_VISUAL_CURSOR:
2003         case LyXRC::RC_VIEWER:
2004         case LyXRC::RC_LAST:
2005                 break;
2006         }
2007 }
2008
2009 } // namespace anon
2010
2011
2012 } // namespace lyx