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"
27 #include "LaTeXFeatures.h"
29 #include "lyxlayout.h"
32 #include "paragraph.h"
34 #include "frontends/Alert.h"
35 #include "frontends/Application.h"
36 #include "frontends/FileDialog.h"
37 #include "frontends/LyXView.h"
39 #include "support/filefilterlist.h"
40 #include "support/filetools.h"
41 #include "support/fontutils.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::addName;
63 using support::bformat;
64 using support::FileFilterList;
65 using support::FileName;
66 using support::ForkedProcess;
67 using support::isLyXFilename;
68 using support::libFileSearch;
69 using support::makeAbsPath;
70 using support::makeDisplayPath;
71 using support::onlyFilename;
72 using support::onlyPath;
73 using support::package;
74 using support::removeAutosaveFile;
75 using support::rename;
77 using support::Systemcall;
78 using support::tempName;
79 using support::unlink;
81 using boost::shared_ptr;
83 namespace Alert = frontend::Alert;
84 namespace fs = boost::filesystem;
86 using std::back_inserter;
93 using std::istream_iterator;
96 // this should be static, but I need it in buffer.C
97 bool quitting; // flag, that we are quitting the program
103 bool menuWrite(Buffer * buffer)
105 if (buffer->save()) {
106 LyX::ref().session().lastFiles().add(buffer->fileName());
110 // FIXME: we don't tell the user *WHY* the save failed !!
112 docstring const file = makeDisplayPath(buffer->fileName(), 30);
114 docstring text = bformat(_("The document %1$s could not be saved.\n\n"
115 "Do you want to rename the document and try again?"), file);
116 int const ret = Alert::prompt(_("Rename and save?"),
117 text, 0, 1, _("&Rename"), _("&Cancel"));
120 return writeAs(buffer);
126 bool writeAs(Buffer * buffer, string const & filename)
128 string fname = buffer->fileName();
129 string const oldname = fname;
131 if (filename.empty()) {
134 FileDialog fileDlg(_("Choose a filename to save document as"),
135 LFUN_BUFFER_WRITE_AS,
136 make_pair(_("Documents|#o#O"), from_utf8(lyxrc.document_path)),
137 make_pair(_("Templates|#T#t"), from_utf8(lyxrc.template_path)));
139 if (!isLyXFilename(fname))
142 FileFilterList const filter (_("LyX Documents (*.lyx)"));
144 FileDialog::Result result =
145 fileDlg.save(from_utf8(onlyPath(fname)),
147 from_utf8(onlyFilename(fname)));
149 if (result.first == FileDialog::Later)
152 fname = to_utf8(result.second);
157 // Make sure the absolute filename ends with appropriate suffix
158 fname = makeAbsPath(fname);
159 if (!isLyXFilename(fname))
164 if (fs::exists(fname)) {
165 docstring const file = makeDisplayPath(fname, 30);
166 docstring text = bformat(_("The document %1$s already exists.\n\n"
167 "Do you want to over-write that document?"), file);
168 int const ret = Alert::prompt(_("Over-write document?"),
169 text, 0, 1, _("&Over-write"), _("&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(string(), "lyxauto"));
236 if (!tmp_ret.empty()) {
237 bv_.buffer()->writeFile(tmp_ret.absFilename());
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_.absFilename())) {
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 ascii file (if filename is empty, prompt for one)
323 void insertAsciiFile(BufferView * bv, string const & f, bool asParagraph)
328 // FIXME: We don't know the encoding of the file
329 docstring const tmpstr = from_utf8(getContentsOfAsciiFile(bv, f, asParagraph));
333 // clear the selection
334 LyXText const & text = bv->buffer()->text();
335 if (&text == bv->getLyXText())
336 bv->cursor().clearSelection();
338 bv->getLyXText()->insertStringAsParagraphs(bv->cursor(), tmpstr);
340 bv->getLyXText()->insertStringAsLines(bv->cursor(), tmpstr);
345 // Insert ascii file (if filename is empty, prompt for one)
346 string getContentsOfAsciiFile(BufferView * bv, string const & f, bool asParagraph)
351 FileDialog fileDlg(_("Select file to insert"),
352 (asParagraph) ? LFUN_FILE_INSERT_ASCII_PARA : LFUN_FILE_INSERT_ASCII);
354 FileDialog::Result result =
355 fileDlg.open(from_utf8(bv->buffer()->filePath()),
356 FileFilterList(), docstring());
358 if (result.first == FileDialog::Later)
361 fname = to_utf8(result.second);
367 if (!fs::is_readable(fname)) {
368 docstring const error = from_ascii(strerror(errno));
369 docstring const file = makeDisplayPath(fname, 50);
370 docstring const text = bformat(_("Could not read the specified document\n"
371 "%1$s\ndue to the error: %2$s"), file, error);
372 Alert::error(_("Could not read file"), text);
376 ifstream ifs(fname.c_str());
378 docstring const error = from_ascii(strerror(errno));
379 docstring const file = makeDisplayPath(fname, 50);
380 docstring const text = bformat(_("Could not open the specified document\n"
381 "%1$s\ndue to the error: %2$s"), file, error);
382 Alert::error(_("Could not open file"), text);
386 ifs.unsetf(ios::skipws);
387 istream_iterator<char> ii(ifs);
388 istream_iterator<char> end;
389 #if !defined(USE_INCLUDED_STRING) && !defined(STD_STRING_IS_GOOD)
390 // We use this until the compilers get better...
391 std::vector<char> tmp;
392 copy(ii, end, back_inserter(tmp));
393 string const tmpstr(tmp.begin(), tmp.end());
395 // This is what we want to use and what we will use once the
396 // compilers get good enough.
397 //string tmpstr(ii, end); // yet a reason for using std::string
398 // alternate approach to get the file into a string:
400 copy(ii, end, back_inserter(tmpstr));
407 // This function runs "configure" and then rereads lyx.defaults to
408 // reconfigure the automatic settings.
409 void reconfigure(LyXView & lv)
411 // emit message signal.
412 lv.message(_("Running configure..."));
414 // Run configure in user lyx directory
415 support::Path p(package().user_support());
416 string const configure_command = package().configure_command();
418 one.startscript(Systemcall::Wait, configure_command);
420 // emit message signal.
421 lv.message(_("Reloading configuration..."));
422 lyxrc.read(libFileSearch(string(), "lyxrc.defaults"));
423 // Re-read packages.lst
424 LaTeXFeatures::getAvailable();
426 Alert::information(_("System reconfigured"),
427 _("The system has been reconfigured.\n"
428 "You need to restart LyX to make use of any\n"
429 "updated document class specifications."));