+void Buffer::setBusy(bool on) const
+{
+ if (gui_)
+ gui_->setBusy(on);
+}
+
+
+void Buffer::setReadOnly(bool on) const
+{
+ if (d->wa_)
+ d->wa_->setReadOnly(on);
+}
+
+
+void Buffer::updateTitles() const
+{
+ if (d->wa_)
+ d->wa_->updateTitles();
+}
+
+
+void Buffer::resetAutosaveTimers() const
+{
+ if (gui_)
+ gui_->resetAutosaveTimers();
+}
+
+
+void Buffer::setGuiDelegate(frontend::GuiBufferDelegate * gui)
+{
+ gui_ = gui;
+}
+
+
+
+namespace {
+
+class AutoSaveBuffer : public support::ForkedProcess {
+public:
+ ///
+ AutoSaveBuffer(Buffer const & buffer, FileName const & fname)
+ : buffer_(buffer), fname_(fname) {}
+ ///
+ virtual boost::shared_ptr<ForkedProcess> clone() const
+ {
+ return boost::shared_ptr<ForkedProcess>(new AutoSaveBuffer(*this));
+ }
+ ///
+ int start()
+ {
+ command_ = to_utf8(bformat(_("Auto-saving %1$s"),
+ from_utf8(fname_.absFilename())));
+ return run(DontWait);
+ }
+private:
+ ///
+ virtual int generateChild();
+ ///
+ Buffer const & buffer_;
+ FileName fname_;
+};
+
+
+#if !defined (HAVE_FORK)
+# define fork() -1
+#endif
+
+int AutoSaveBuffer::generateChild()
+{
+ // tmp_ret will be located (usually) in /tmp
+ // will that be a problem?
+ pid_t const pid = fork();
+ // If you want to debug the autosave
+ // you should set pid to -1, and comment out the fork.
+ if (pid == 0 || pid == -1) {
+ // pid = -1 signifies that lyx was unable
+ // to fork. But we will do the save
+ // anyway.
+ bool failed = false;
+
+ FileName const tmp_ret(tempName(FileName(), "lyxauto"));
+ if (!tmp_ret.empty()) {
+ buffer_.writeFile(tmp_ret);
+ // assume successful write of tmp_ret
+ if (!rename(tmp_ret, fname_)) {
+ failed = true;
+ // most likely couldn't move between
+ // filesystems unless write of tmp_ret
+ // failed so remove tmp file (if it
+ // exists)
+ tmp_ret.removeFile();
+ }
+ } else {
+ failed = true;
+ }
+
+ if (failed) {
+ // failed to write/rename tmp_ret so try writing direct
+ if (!buffer_.writeFile(fname_)) {
+ // It is dangerous to do this in the child,
+ // but safe in the parent, so...
+ if (pid == -1) // emit message signal.
+ buffer_.message(_("Autosave failed!"));
+ }
+ }
+ if (pid == 0) { // we are the child so...
+ _exit(0);
+ }
+ }
+ return pid;
+}
+
+} // namespace anon
+
+
+// Perfect target for a thread...
+void Buffer::autoSave() const
+{
+ if (isBakClean() || isReadonly()) {
+ // We don't save now, but we'll try again later
+ resetAutosaveTimers();
+ return;
+ }
+
+ // emit message signal.
+ message(_("Autosaving current document..."));
+
+ // create autosave filename
+ string fname = filePath();
+ fname += '#';
+ fname += onlyFilename(absFileName());
+ fname += '#';
+
+ AutoSaveBuffer autosave(*this, FileName(fname));
+ autosave.start();
+
+ markBakClean();
+ resetAutosaveTimers();
+}
+
+
+/** Write a buffer to a new file name and rename the buffer
+ according to the new file name.
+
+ This function is e.g. used by menu callbacks and
+ LFUN_BUFFER_WRITE_AS.
+
+ If 'newname' is empty (the default), the user is asked via a
+ dialog for the buffer's new name and location.
+
+ If 'newname' is non-empty and has an absolute path, that is used.
+ Otherwise the base directory of the buffer is used as the base
+ for any relative path in 'newname'.
+*/
+
+bool Buffer::writeAs(string const & newname)
+{
+ string fname = absFileName();
+ string const oldname = fname;
+
+ if (newname.empty()) { /// No argument? Ask user through dialog
+
+ // FIXME UNICODE
+ FileDialog dlg(_("Choose a filename to save document as"),
+ LFUN_BUFFER_WRITE_AS);
+ dlg.setButton1(_("Documents|#o#O"), from_utf8(lyxrc.document_path));
+ dlg.setButton2(_("Templates|#T#t"), from_utf8(lyxrc.template_path));
+
+ if (!support::isLyXFilename(fname))
+ fname += ".lyx";
+
+ support::FileFilterList const filter(_("LyX Documents (*.lyx)"));
+
+ FileDialog::Result result =
+ dlg.save(from_utf8(onlyPath(fname)),
+ filter,
+ from_utf8(onlyFilename(fname)));
+
+ if (result.first == FileDialog::Later)
+ return false;
+
+ fname = to_utf8(result.second);
+
+ if (fname.empty())
+ return false;
+
+ // Make sure the absolute filename ends with appropriate suffix
+ fname = makeAbsPath(fname).absFilename();
+ if (!support::isLyXFilename(fname))
+ fname += ".lyx";
+
+ } else
+ fname = makeAbsPath(newname, onlyPath(oldname)).absFilename();
+
+ if (FileName(fname).exists()) {
+ docstring const file = makeDisplayPath(fname, 30);
+ docstring text = bformat(_("The document %1$s already "
+ "exists.\n\nDo you want to "
+ "overwrite that document?"),
+ file);
+ int const ret = Alert::prompt(_("Overwrite document?"),
+ text, 0, 1, _("&Overwrite"), _("&Cancel"));
+
+ if (ret == 1)
+ return false;
+ }
+
+ // Ok, change the name of the buffer
+ setFileName(fname);
+ markDirty();
+ bool unnamed = isUnnamed();
+ setUnnamed(false);
+ saveCheckSum(FileName(fname));
+
+ if (!menuWrite()) {
+ setFileName(oldname);
+ setUnnamed(unnamed);
+ saveCheckSum(FileName(oldname));
+ return false;
+ }
+
+ removeAutosaveFile(oldname);
+ return true;
+}
+
+
+bool Buffer::menuWrite()
+{
+ if (save()) {
+ LyX::ref().session().lastFiles().add(FileName(absFileName()));
+ return true;
+ }
+
+ // FIXME: we don't tell the user *WHY* the save failed !!
+
+ docstring const file = makeDisplayPath(absFileName(), 30);
+
+ docstring text = bformat(_("The document %1$s could not be saved.\n\n"
+ "Do you want to rename the document and "
+ "try again?"), file);
+ int const ret = Alert::prompt(_("Rename and save?"),
+ text, 0, 1, _("&Rename"), _("&Cancel"));
+
+ if (ret != 0)
+ return false;
+
+ return writeAs();
+}
+
+
+void Buffer::resetChildDocuments(bool close_them) const
+{
+ for (InsetIterator it = inset_iterator_begin(inset()); it; ++it) {
+ if (it->lyxCode() != INCLUDE_CODE)
+ continue;
+ InsetCommand const & inset = static_cast<InsetCommand const &>(*it);
+ InsetCommandParams const & ip = inset.params();
+
+ resetParentBuffer(this, ip, close_them);
+ }
+
+ if (use_gui && masterBuffer() == this)
+ updateLabels(*this);
+}
+
+
+void Buffer::loadChildDocuments() const
+{
+ bool parse_error = false;
+
+ for (InsetIterator it = inset_iterator_begin(inset()); it; ++it) {
+ if (it->lyxCode() != INCLUDE_CODE)
+ continue;
+ InsetCommand const & inset = static_cast<InsetCommand const &>(*it);
+ InsetCommandParams const & ip = inset.params();
+ Buffer * child = loadIfNeeded(*this, ip);
+ if (!child)
+ continue;
+ parse_error |= !child->errorList("Parse").empty();
+ child->loadChildDocuments();
+ }
+
+ if (use_gui && masterBuffer() == this)
+ updateLabels(*this);
+}
+
+
+string Buffer::bufferFormat() const
+{
+ if (isDocBook())
+ return "docbook";
+ if (isLiterate())
+ return "literate";
+ return "latex";
+}
+
+
+bool Buffer::doExport(string const & format, bool put_in_tempdir,
+ string & result_file) const
+{
+ string backend_format;
+ OutputParams runparams(¶ms().encoding());
+ runparams.flavor = OutputParams::LATEX;
+ runparams.linelen = lyxrc.plaintext_linelen;
+ vector<string> backs = backends();
+ if (find(backs.begin(), backs.end(), format) == backs.end()) {
+ // Get shortest path to format
+ Graph::EdgePath path;
+ for (vector<string>::const_iterator it = backs.begin();
+ it != backs.end(); ++it) {
+ Graph::EdgePath p = theConverters().getPath(*it, format);
+ if (!p.empty() && (path.empty() || p.size() < path.size())) {
+ backend_format = *it;
+ path = p;
+ }
+ }
+ if (!path.empty())
+ runparams.flavor = theConverters().getFlavor(path);
+ else {
+ Alert::error(_("Couldn't export file"),
+ bformat(_("No information for exporting the format %1$s."),
+ formats.prettyName(format)));
+ return false;
+ }
+ } else {
+ backend_format = format;
+ // FIXME: Don't hardcode format names here, but use a flag
+ if (backend_format == "pdflatex")
+ runparams.flavor = OutputParams::PDFLATEX;
+ }
+
+ string filename = latexName(false);
+ filename = addName(temppath(), filename);
+ filename = changeExtension(filename,
+ formats.extension(backend_format));
+
+ // Plain text backend
+ if (backend_format == "text")
+ writePlaintextFile(*this, FileName(filename), runparams);
+ // no backend
+ else if (backend_format == "lyx")
+ writeFile(FileName(filename));
+ // Docbook backend
+ else if (isDocBook()) {
+ runparams.nice = !put_in_tempdir;
+ makeDocBookFile(FileName(filename), runparams);
+ }
+ // LaTeX backend
+ else if (backend_format == format) {
+ runparams.nice = true;
+ if (!makeLaTeXFile(FileName(filename), string(), runparams))
+ return false;
+ } else if (!lyxrc.tex_allows_spaces
+ && support::contains(filePath(), ' ')) {
+ Alert::error(_("File name error"),
+ _("The directory path to the document cannot contain spaces."));
+ return false;
+ } else {
+ runparams.nice = false;
+ if (!makeLaTeXFile(FileName(filename), filePath(), runparams))
+ return false;
+ }
+
+ string const error_type = (format == "program")
+ ? "Build" : bufferFormat();
+ string const ext = formats.extension(format);
+ FileName const tmp_result_file(changeExtension(filename, ext));
+ bool const success = theConverters().convert(this, FileName(filename),
+ tmp_result_file, FileName(absFileName()), backend_format, format,
+ errorList(error_type));
+ // Emit the signal to show the error list.
+ if (format != backend_format)
+ errors(error_type);
+ if (!success)
+ return false;
+
+ if (put_in_tempdir)
+ result_file = tmp_result_file.absFilename();
+ else {
+ result_file = changeExtension(absFileName(), ext);
+ // We need to copy referenced files (e. g. included graphics
+ // if format == "dvi") to the result dir.
+ vector<ExportedFile> const files =
+ runparams.exportdata->externalFiles(format);
+ string const dest = onlyPath(result_file);
+ CopyStatus status = SUCCESS;
+ for (vector<ExportedFile>::const_iterator it = files.begin();
+ it != files.end() && status != CANCEL; ++it) {
+ string const fmt =
+ formats.getFormatFromFile(it->sourceName);
+ status = copyFile(fmt, it->sourceName,
+ makeAbsPath(it->exportName, dest),
+ it->exportName, status == FORCE);
+ }
+ if (status == CANCEL) {
+ message(_("Document export cancelled."));
+ } else if (tmp_result_file.exists()) {
+ // Finally copy the main file
+ status = copyFile(format, tmp_result_file,
+ FileName(result_file), result_file,
+ status == FORCE);
+ message(bformat(_("Document exported as %1$s "
+ "to file `%2$s'"),
+ formats.prettyName(format),
+ makeDisplayPath(result_file)));
+ } else {
+ // This must be a dummy converter like fax (bug 1888)
+ message(bformat(_("Document exported as %1$s"),
+ formats.prettyName(format)));
+ }
+ }
+
+ return true;
+}
+
+
+bool Buffer::doExport(string const & format, bool put_in_tempdir) const
+{
+ string result_file;
+ return doExport(format, put_in_tempdir, result_file);
+}
+
+
+bool Buffer::preview(string const & format) const
+{
+ string result_file;
+ if (!doExport(format, true, result_file))
+ return false;
+ return formats.view(*this, FileName(result_file), format);
+}
+
+
+bool Buffer::isExportable(string const & format) const
+{
+ vector<string> backs = backends();
+ for (vector<string>::const_iterator it = backs.begin();
+ it != backs.end(); ++it)
+ if (theConverters().isReachable(*it, format))
+ return true;
+ return false;
+}
+
+
+vector<Format const *> Buffer::exportableFormats(bool only_viewable) const
+{
+ vector<string> backs = backends();
+ vector<Format const *> result =
+ theConverters().getReachable(backs[0], only_viewable, true);
+ for (vector<string>::const_iterator it = backs.begin() + 1;
+ it != backs.end(); ++it) {
+ vector<Format const *> r =
+ theConverters().getReachable(*it, only_viewable, false);
+ result.insert(result.end(), r.begin(), r.end());
+ }
+ return result;
+}
+
+
+vector<string> Buffer::backends() const
+{
+ vector<string> v;
+ if (params().getTextClass().isTeXClassAvailable()) {
+ v.push_back(bufferFormat());
+ // FIXME: Don't hardcode format names here, but use a flag
+ if (v.back() == "latex")
+ v.push_back("pdflatex");
+ }
+ v.push_back("text");
+ v.push_back("lyx");
+ return v;
+}
+
+
+bool Buffer::readFileHelper(FileName const & s)
+{
+ // File information about normal file
+ if (!s.exists()) {
+ docstring const file = makeDisplayPath(s.absFilename(), 50);
+ docstring text = bformat(_("The specified document\n%1$s"
+ "\ncould not be read."), file);
+ Alert::error(_("Could not read document"), text);
+ return false;
+ }
+
+ // Check if emergency save file exists and is newer.
+ FileName const e(s.absFilename() + ".emergency");
+
+ if (e.exists() && s.exists() && e.lastModified() > s.lastModified()) {
+ docstring const file = makeDisplayPath(s.absFilename(), 20);
+ docstring const text =
+ bformat(_("An emergency save of the document "
+ "%1$s exists.\n\n"
+ "Recover emergency save?"), file);
+ switch (Alert::prompt(_("Load emergency save?"), text, 0, 2,
+ _("&Recover"), _("&Load Original"),
+ _("&Cancel")))
+ {
+ case 0:
+ // the file is not saved if we load the emergency file.
+ markDirty();
+ return readFile(e);
+ case 1:
+ break;
+ default:
+ return false;
+ }
+ }
+
+ // Now check if autosave file is newer.
+ FileName const a(onlyPath(s.absFilename()) + '#' + onlyFilename(s.absFilename()) + '#');
+
+ if (a.exists() && s.exists() && a.lastModified() > s.lastModified()) {
+ docstring const file = makeDisplayPath(s.absFilename(), 20);
+ docstring const text =
+ bformat(_("The backup of the document "
+ "%1$s is newer.\n\nLoad the "
+ "backup instead?"), file);
+ switch (Alert::prompt(_("Load backup?"), text, 0, 2,
+ _("&Load backup"), _("Load &original"),
+ _("&Cancel") ))
+ {
+ case 0:
+ // the file is not saved if we load the autosave file.
+ markDirty();
+ return readFile(a);
+ case 1:
+ // Here we delete the autosave
+ a.removeFile();
+ break;
+ default:
+ return false;
+ }
+ }
+ return readFile(s);
+}
+
+
+bool Buffer::loadLyXFile(FileName const & s)
+{
+ if (s.isReadableFile()) {
+ if (readFileHelper(s)) {
+ lyxvc().file_found_hook(s);
+ if (!s.isWritable())
+ setReadonly(true);
+ return true;
+ }
+ } else {
+ docstring const file = makeDisplayPath(s.absFilename(), 20);
+ // Here we probably should run
+ if (LyXVC::file_not_found_hook(s)) {
+ docstring const text =
+ bformat(_("Do you want to retrieve the document"
+ " %1$s from version control?"), file);
+ int const ret = Alert::prompt(_("Retrieve from version control?"),
+ text, 0, 1, _("&Retrieve"), _("&Cancel"));
+
+ if (ret == 0) {
+ // How can we know _how_ to do the checkout?
+ // With the current VC support it has to be,
+ // a RCS file since CVS do not have special ,v files.
+ RCS::retrieve(s);
+ return loadLyXFile(s);
+ }
+ }
+ }
+ return false;
+}
+
+
+void Buffer::bufferErrors(TeXErrors const & terr, ErrorList & errorList) const
+{
+ TeXErrors::Errors::const_iterator cit = terr.begin();
+ TeXErrors::Errors::const_iterator end = terr.end();
+
+ for (; cit != end; ++cit) {
+ int id_start = -1;
+ int pos_start = -1;
+ int errorRow = cit->error_in_line;
+ bool found = d->texrow.getIdFromRow(errorRow, id_start,
+ pos_start);
+ int id_end = -1;
+ int pos_end = -1;
+ do {
+ ++errorRow;
+ found = d->texrow.getIdFromRow(errorRow, id_end, pos_end);
+ } while (found && id_start == id_end && pos_start == pos_end);
+
+ errorList.push_back(ErrorItem(cit->error_desc,
+ cit->error_text, id_start, pos_start, pos_end));
+ }
+}
+