3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
6 * \author Lars Gullik Bjønnes
7 * \author Angus Leeming
10 * \author Jürgen Vigna
12 * Full author contact details are available in file CREDITS.
20 #include "BufferList.h"
21 #include "BufferView.h"
22 #include "buffer_funcs.h"
24 #include "CutAndPaste.h"
28 #include "LaTeXFeatures.h"
35 #include "frontends/alert.h"
36 #include "frontends/Application.h"
37 #include "frontends/FileDialog.h"
38 #include "frontends/LyXView.h"
40 #include "support/FileFilterList.h"
41 #include "support/filetools.h"
42 #include "support/Forkedcall.h"
43 #include "support/fs_extras.h"
44 #include "support/lyxlib.h"
45 #include "support/Package.h"
46 #include "support/Path.h"
47 #include "support/Systemcall.h"
49 #if !defined (HAVE_FORK)
53 #include <boost/shared_ptr.hpp>
54 #include <boost/filesystem/operations.hpp>
62 using support::bformat;
63 using support::FileFilterList;
64 using support::FileName;
65 using support::ForkedProcess;
66 using support::isLyXFilename;
67 using support::libFileSearch;
68 using support::makeAbsPath;
69 using support::makeDisplayPath;
70 using support::onlyFilename;
71 using support::onlyPath;
72 using support::package;
73 using support::removeAutosaveFile;
74 using support::rename;
76 using support::Systemcall;
77 using support::tempName;
78 using support::unlink;
80 using boost::shared_ptr;
82 namespace Alert = frontend::Alert;
83 namespace fs = boost::filesystem;
85 using std::back_inserter;
92 using std::istream_iterator;
95 // this should be static, but I need it in Buffer.cpp
96 bool quitting; // flag, that we are quitting the program
102 bool menuWrite(Buffer * buffer)
104 if (buffer->save()) {
105 LyX::ref().session().lastFiles().add(FileName(buffer->fileName()));
109 // FIXME: we don't tell the user *WHY* the save failed !!
111 docstring const file = makeDisplayPath(buffer->fileName(), 30);
113 docstring text = bformat(_("The document %1$s could not be saved.\n\n"
114 "Do you want to rename the document and try again?"), file);
115 int const ret = Alert::prompt(_("Rename and save?"),
116 text, 0, 1, _("&Rename"), _("&Cancel"));
119 return writeAs(buffer);
125 bool writeAs(Buffer * buffer, string const & newname)
127 string fname = buffer->fileName();
128 string const oldname = fname;
130 if (newname.empty()) {
133 FileDialog fileDlg(_("Choose a filename to save document as"),
134 LFUN_BUFFER_WRITE_AS,
135 make_pair(_("Documents|#o#O"), from_utf8(lyxrc.document_path)),
136 make_pair(_("Templates|#T#t"), from_utf8(lyxrc.template_path)));
138 if (!isLyXFilename(fname))
141 FileFilterList const filter (_("LyX Documents (*.lyx)"));
143 FileDialog::Result result =
144 fileDlg.save(from_utf8(onlyPath(fname)),
146 from_utf8(onlyFilename(fname)));
148 if (result.first == FileDialog::Later)
151 fname = to_utf8(result.second);
156 // Make sure the absolute filename ends with appropriate suffix
157 fname = makeAbsPath(fname).absFilename();
158 if (!isLyXFilename(fname))
163 FileName const filename(fname);
164 if (fs::exists(filename.toFilesystemEncoding())) {
165 docstring const file = makeDisplayPath(fname, 30);
166 docstring text = bformat(_("The document %1$s already exists.\n\n"
167 "Do you want to overwrite that document?"), file);
168 int const ret = Alert::prompt(_("Overwrite document?"),
169 text, 0, 1, _("&Overwrite"), _("&Cancel"));
175 // Ok, change the name of the buffer
176 buffer->setFileName(fname);
178 bool unnamed = buffer->isUnnamed();
179 buffer->setUnnamed(false);
181 if (!menuWrite(buffer)) {
182 buffer->setFileName(oldname);
183 buffer->setUnnamed(unnamed);
187 removeAutosaveFile(oldname);
194 class AutoSaveBuffer : public ForkedProcess {
197 AutoSaveBuffer(BufferView & bv, FileName const & fname)
198 : bv_(bv), fname_(fname) {}
200 virtual shared_ptr<ForkedProcess> clone() const
202 return shared_ptr<ForkedProcess>(new AutoSaveBuffer(*this));
208 virtual int generateChild();
215 int AutoSaveBuffer::start()
217 command_ = to_utf8(bformat(_("Auto-saving %1$s"), from_utf8(fname_.absFilename())));
218 return run(DontWait);
222 int AutoSaveBuffer::generateChild()
224 // tmp_ret will be located (usually) in /tmp
225 // will that be a problem?
226 pid_t const pid = fork(); // If you want to debug the autosave
227 // you should set pid to -1, and comment out the
229 if (pid == 0 || pid == -1) {
230 // pid = -1 signifies that lyx was unable
231 // to fork. But we will do the save
235 FileName const tmp_ret(tempName(FileName(), "lyxauto"));
236 if (!tmp_ret.empty()) {
237 bv_.buffer()->writeFile(tmp_ret);
238 // assume successful write of tmp_ret
239 if (!rename(tmp_ret, fname_)) {
241 // most likely couldn't move between filesystems
242 // unless write of tmp_ret failed
243 // so remove tmp file (if it exists)
251 // failed to write/rename tmp_ret so try writing direct
252 if (!bv_.buffer()->writeFile(fname_)) {
253 // It is dangerous to do this in the child,
254 // but safe in the parent, so...
256 // emit message signal.
257 bv_.buffer()->message(_("Autosave failed!"));
260 if (pid == 0) { // we are the child so...
270 void autoSave(BufferView * bv)
271 // should probably be moved into BufferList (Lgb)
272 // Perfect target for a thread...
277 if (bv->buffer()->isBakClean() || bv->buffer()->isReadonly()) {
278 // We don't save now, but we'll try again later
279 bv->buffer()->resetAutosaveTimers();
283 // emit message signal.
284 bv->buffer()->message(_("Autosaving current document..."));
286 // create autosave filename
287 string fname = bv->buffer()->filePath();
289 fname += onlyFilename(bv->buffer()->fileName());
292 AutoSaveBuffer autosave(*bv, FileName(fname));
295 bv->buffer()->markBakClean();
296 bv->buffer()->resetAutosaveTimers();
301 // Copyright CHT Software Service GmbH
304 // create new file with template
307 void newFile(BufferView * bv, string const & filename)
309 // Split argument by :
311 string tmpname = split(filename, name, ':');
312 LYXERR(Debug::INFO) << "Arg is " << filename
313 << "\nName is " << name
314 << "\nTemplate is " << tmpname << endl;
316 Buffer * const b = newFile(name, tmpname);
322 // Insert plain text file (if filename is empty, prompt for one)
323 void insertPlaintextFile(BufferView * bv, string const & f, bool asParagraph)
328 docstring const tmpstr = getContentsOfPlaintextFile(bv, f, asParagraph);
332 Cursor & cur = bv->cursor();
333 cap::replaceSelection(cur);
336 cur.innerText()->insertStringAsParagraphs(cur, tmpstr);
338 cur.innerText()->insertStringAsLines(cur, tmpstr);
342 docstring const getContentsOfPlaintextFile(BufferView * bv, string const & f,
348 FileDialog fileDlg(_("Select file to insert"),
349 (asParagraph) ? LFUN_FILE_INSERT_PLAINTEXT_PARA : LFUN_FILE_INSERT_PLAINTEXT);
351 FileDialog::Result result =
352 fileDlg.open(from_utf8(bv->buffer()->filePath()),
353 FileFilterList(), docstring());
355 if (result.first == FileDialog::Later)
358 fname = makeAbsPath(to_utf8(result.second));
364 if (!fs::is_readable(fname.toFilesystemEncoding())) {
365 docstring const error = from_ascii(strerror(errno));
366 docstring const file = makeDisplayPath(fname.absFilename(), 50);
367 docstring const text = bformat(_("Could not read the specified document\n"
368 "%1$s\ndue to the error: %2$s"), file, error);
369 Alert::error(_("Could not read file"), text);
373 ifstream ifs(fname.toFilesystemEncoding().c_str());
375 docstring const error = from_ascii(strerror(errno));
376 docstring const file = makeDisplayPath(fname.absFilename(), 50);
377 docstring const text = bformat(_("Could not open the specified document\n"
378 "%1$s\ndue to the error: %2$s"), file, error);
379 Alert::error(_("Could not open file"), text);
383 ifs.unsetf(ios::skipws);
384 istream_iterator<char> ii(ifs);
385 istream_iterator<char> end;
386 #if !defined(USE_INCLUDED_STRING) && !defined(STD_STRING_IS_GOOD)
387 // We use this until the compilers get better...
388 std::vector<char> tmp;
389 copy(ii, end, back_inserter(tmp));
390 string const tmpstr(tmp.begin(), tmp.end());
392 // This is what we want to use and what we will use once the
393 // compilers get good enough.
394 //string tmpstr(ii, end); // yet a reason for using std::string
395 // alternate approach to get the file into a string:
397 copy(ii, end, back_inserter(tmpstr));
400 // FIXME UNICODE: We don't know the encoding of the file
401 docstring file_content = from_utf8(tmpstr);
402 if (file_content.empty()) {
403 Alert::error(_("Reading not UTF-8 encoded file"),
404 _("The file is not UTF-8 encoded.\n"
405 "It will be read as local 8Bit-encoded.\n"
406 "If this does not give the correct result\n"
407 "then please change the encoding of the file\n"
408 "to UTF-8 with a program other than LyX.\n"));
409 file_content = from_local8bit(tmpstr);
412 return normalize_c(file_content);
416 // This function runs "configure" and then rereads lyx.defaults to
417 // reconfigure the automatic settings.
418 void reconfigure(LyXView & lv)
420 // emit message signal.
421 lv.message(_("Running configure..."));
423 // Run configure in user lyx directory
424 support::Path p(package().user_support());
425 string const configure_command = package().configure_command();
427 one.startscript(Systemcall::Wait, configure_command);
429 // emit message signal.
430 lv.message(_("Reloading configuration..."));
431 lyxrc.read(libFileSearch(string(), "lyxrc.defaults"));
432 // Re-read packages.lst
433 LaTeXFeatures::getAvailable();
435 Alert::information(_("System reconfigured"),
436 _("The system has been reconfigured.\n"
437 "You need to restart LyX to make use of any\n"
438 "updated document class specifications."));