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https://git.lyx.org/repos/lyx.git
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558e849e69
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@8982 a592a061-630c-0410-9148-cb99ea01b6c8
460 lines
11 KiB
C
460 lines
11 KiB
C
/**
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* \file lyx_cb.C
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Lars Gullik Bjønnes
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* \author Angus Leeming
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* \author John Levon
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* \author André Pönitz
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* \author Jürgen Vigna
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*
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* Full author contact details are available in file CREDITS.
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*/
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#include <config.h>
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#include "lyx_cb.h"
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#include "buffer.h"
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#include "bufferlist.h"
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#include "BufferView.h"
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#include "cursor.h"
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#include "debug.h"
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#include "gettext.h"
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#include "lastfiles.h"
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#include "lyx_main.h"
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#include "lyxlayout.h"
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#include "lyxrc.h"
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#include "lyxtext.h"
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#include "paragraph.h"
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#include "frontends/Alert.h"
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#include "frontends/FileDialog.h"
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#include "frontends/lyx_gui.h"
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#include "frontends/LyXView.h"
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#include "support/FileInfo.h"
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#include "support/filetools.h"
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#include "support/forkedcall.h"
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#include "support/globbing.h"
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#include "support/lyxlib.h"
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#include "support/os.h"
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#include "support/path.h"
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#include "support/path_defines.h"
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#include "support/systemcall.h"
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#include <boost/shared_ptr.hpp>
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#include <cerrno>
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#include <fstream>
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using lyx::support::AddName;
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using lyx::support::bformat;
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using lyx::support::destroyDir;
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using lyx::support::FileFilterList;
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using lyx::support::FileInfo;
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using lyx::support::ForkedProcess;
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using lyx::support::IsLyXFilename;
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using lyx::support::LibFileSearch;
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using lyx::support::MakeAbsPath;
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using lyx::support::MakeDisplayPath;
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using lyx::support::OnlyFilename;
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using lyx::support::OnlyPath;
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using lyx::support::Path;
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using lyx::support::QuoteName;
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using lyx::support::removeAutosaveFile;
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using lyx::support::rename;
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using lyx::support::split;
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using lyx::support::system_lyxdir;
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using lyx::support::Systemcall;
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using lyx::support::tempName;
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using lyx::support::unlink;
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using lyx::support::user_lyxdir;
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namespace os = lyx::support::os;
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using boost::shared_ptr;
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using std::back_inserter;
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using std::copy;
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using std::endl;
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using std::make_pair;
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using std::string;
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using std::ifstream;
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using std::ios;
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using std::istream_iterator;
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extern BufferList bufferlist;
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// this should be static, but I need it in buffer.C
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bool quitting; // flag, that we are quitting the program
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//
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// Menu callbacks
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//
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bool MenuWrite(Buffer * buffer)
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{
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if (buffer->save()) {
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LyX::ref().lastfiles().newFile(buffer->fileName());
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return true;
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}
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// FIXME: we don't tell the user *WHY* the save failed !!
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string const file = MakeDisplayPath(buffer->fileName(), 30);
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string text = bformat(_("The document %1$s could not be saved.\n\n"
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"Do you want to rename the document and try again?"), file);
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int const ret = Alert::prompt(_("Rename and save?"),
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text, 0, 1, _("&Rename"), _("&Cancel"));
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if (ret == 0)
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return WriteAs(buffer);
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return false;
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}
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bool WriteAs(Buffer * buffer, string const & filename)
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{
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string fname = buffer->fileName();
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string const oldname = fname;
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if (filename.empty()) {
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FileDialog fileDlg(_("Choose a filename to save document as"),
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LFUN_WRITEAS,
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make_pair(string(_("Documents|#o#O")),
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string(lyxrc.document_path)),
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make_pair(string(_("Templates|#T#t")),
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string(lyxrc.template_path)));
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if (!IsLyXFilename(fname))
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fname += ".lyx";
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FileFilterList const filter (_("LyX Documents (*.lyx)"));
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FileDialog::Result result =
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fileDlg.save(OnlyPath(fname),
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filter,
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OnlyFilename(fname));
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if (result.first == FileDialog::Later)
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return false;
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fname = result.second;
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if (fname.empty())
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return false;
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// Make sure the absolute filename ends with appropriate suffix
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fname = MakeAbsPath(fname);
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if (!IsLyXFilename(fname))
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fname += ".lyx";
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} else
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fname = filename;
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FileInfo const myfile(fname);
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if (myfile.isOK()) {
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string const file = MakeDisplayPath(fname, 30);
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string text = bformat(_("The document %1$s already exists.\n\n"
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"Do you want to over-write that document?"), file);
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int const ret = Alert::prompt(_("Over-write document?"),
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text, 0, 1, _("&Over-write"), _("&Cancel"));
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if (ret == 1)
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return false;
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}
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// Ok, change the name of the buffer
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buffer->setFileName(fname);
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buffer->markDirty();
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bool unnamed = buffer->isUnnamed();
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buffer->setUnnamed(false);
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if (!MenuWrite(buffer)) {
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buffer->setFileName(oldname);
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buffer->setUnnamed(unnamed);
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return false;
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}
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removeAutosaveFile(oldname);
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return true;
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}
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void QuitLyX()
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{
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lyxerr[Debug::INFO] << "Running QuitLyX." << endl;
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if (lyx_gui::use_gui) {
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if (!bufferlist.quitWriteAll())
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return;
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LyX::cref().lastfiles().writeFile(lyxrc.lastfiles);
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}
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// Set a flag that we do quitting from the program,
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// so no refreshes are necessary.
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quitting = true;
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// close buffers first
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bufferlist.closeAll();
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// do any other cleanup procedures now
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lyxerr[Debug::INFO] << "Deleting tmp dir " << os::getTmpDir() << endl;
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if (destroyDir(os::getTmpDir()) != 0) {
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string msg = bformat(_("Could not remove the temporary directory %1$s"),
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os::getTmpDir());
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Alert::warning(_("Could not remove temporary directory"), msg);
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}
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lyx_gui::exit();
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}
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namespace {
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class AutoSaveBuffer : public ForkedProcess {
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public:
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///
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AutoSaveBuffer(BufferView & bv, string const & fname)
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: bv_(bv), fname_(fname) {}
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///
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virtual shared_ptr<ForkedProcess> clone() const
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{
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return shared_ptr<ForkedProcess>(new AutoSaveBuffer(*this));
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}
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///
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int start();
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private:
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///
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virtual int generateChild();
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///
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BufferView & bv_;
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string fname_;
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};
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int AutoSaveBuffer::start()
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{
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command_ = bformat(_("Auto-saving %1$s"), fname_);
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return run(DontWait);
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}
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int AutoSaveBuffer::generateChild()
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{
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// tmp_ret will be located (usually) in /tmp
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// will that be a problem?
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pid_t const pid = fork(); // If you want to debug the autosave
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// you should set pid to -1, and comment out the
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// fork.
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if (pid == 0 || pid == -1) {
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// pid = -1 signifies that lyx was unable
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// to fork. But we will do the save
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// anyway.
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bool failed = false;
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string const tmp_ret = tempName(string(), "lyxauto");
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if (!tmp_ret.empty()) {
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bv_.buffer()->writeFile(tmp_ret);
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// assume successful write of tmp_ret
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if (!rename(tmp_ret, fname_)) {
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failed = true;
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// most likely couldn't move between filesystems
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// unless write of tmp_ret failed
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// so remove tmp file (if it exists)
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unlink(tmp_ret);
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}
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} else {
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failed = true;
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}
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if (failed) {
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// failed to write/rename tmp_ret so try writing direct
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if (!bv_.buffer()->writeFile(fname_)) {
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// It is dangerous to do this in the child,
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// but safe in the parent, so...
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if (pid == -1)
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bv_.owner()->message(_("Autosave failed!"));
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}
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}
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if (pid == 0) { // we are the child so...
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_exit(0);
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}
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}
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return pid;
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}
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} // namespace anon
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void AutoSave(BufferView * bv)
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// should probably be moved into BufferList (Lgb)
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// Perfect target for a thread...
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{
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if (!bv->available())
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return;
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if (bv->buffer()->isBakClean() || bv->buffer()->isReadonly()) {
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// We don't save now, but we'll try again later
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bv->owner()->resetAutosaveTimer();
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return;
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}
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bv->owner()->message(_("Autosaving current document..."));
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// create autosave filename
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string fname = bv->buffer()->filePath();
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fname += '#';
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fname += OnlyFilename(bv->buffer()->fileName());
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fname += '#';
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AutoSaveBuffer autosave(*bv, fname);
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autosave.start();
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bv->buffer()->markBakClean();
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bv->owner()->resetAutosaveTimer();
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}
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//
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// Copyright CHT Software Service GmbH
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// Uwe C. Schroeder
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//
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// create new file with template
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// SERVERCMD !
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//
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void NewFile(BufferView * bv, string const & filename)
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{
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// Split argument by :
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string name;
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string tmpname = split(filename, name, ':');
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#ifdef __EMX__ // Fix me! lyx_cb.C may not be low level enough to allow this.
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if (name.length() == 1
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&& isalpha(static_cast<unsigned char>(name[0]))
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&& (prefixIs(tmpname, "/") || prefixIs(tmpname, "\\"))) {
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name += ':';
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name += token(tmpname, ':', 0);
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tmpname = split(tmpname, ':');
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}
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#endif
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lyxerr[Debug::INFO] << "Arg is " << filename
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<< "\nName is " << name
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<< "\nTemplate is " << tmpname << endl;
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bv->newFile(name, tmpname);
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}
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// Insert ascii file (if filename is empty, prompt for one)
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void InsertAsciiFile(BufferView * bv, string const & f, bool asParagraph)
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{
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if (!bv->available())
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return;
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string const tmpstr = getContentsOfAsciiFile(bv, f, asParagraph);
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if (tmpstr.empty())
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return;
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// clear the selection
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if (bv->text() == bv->getLyXText())
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bv->cursor().clearSelection();
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if (asParagraph)
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bv->getLyXText()->insertStringAsParagraphs(bv->cursor(), tmpstr);
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else
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bv->getLyXText()->insertStringAsLines(bv->cursor(), tmpstr);
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bv->update();
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}
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// Insert ascii file (if filename is empty, prompt for one)
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string getContentsOfAsciiFile(BufferView * bv, string const & f, bool asParagraph)
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{
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string fname = f;
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if (fname.empty()) {
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FileDialog fileDlg(_("Select file to insert"),
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(asParagraph) ? LFUN_FILE_INSERT_ASCII_PARA : LFUN_FILE_INSERT_ASCII);
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FileDialog::Result result =
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fileDlg.open(bv->owner()->buffer()->filePath(),
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FileFilterList(), string());
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if (result.first == FileDialog::Later)
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return string();
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fname = result.second;
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if (fname.empty())
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return string();
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}
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FileInfo fi(fname);
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if (!fi.readable()) {
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string const error = strerror(errno);
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string const file = MakeDisplayPath(fname, 50);
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string const text = bformat(_("Could not read the specified document\n"
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"%1$s\ndue to the error: %2$s"), file, error);
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Alert::error(_("Could not read file"), text);
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return string();
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}
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ifstream ifs(fname.c_str());
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if (!ifs) {
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string const error = strerror(errno);
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string const file = MakeDisplayPath(fname, 50);
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string const text = bformat(_("Could not open the specified document\n"
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"%1$s\ndue to the error: %2$s"), file, error);
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Alert::error(_("Could not open file"), text);
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return string();
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}
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ifs.unsetf(ios::skipws);
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istream_iterator<char> ii(ifs);
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istream_iterator<char> end;
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#if !defined(USE_INCLUDED_STRING) && !defined(STD_STRING_IS_GOOD)
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// We use this until the compilers get better...
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std::vector<char> tmp;
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copy(ii, end, back_inserter(tmp));
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string const tmpstr(tmp.begin(), tmp.end());
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#else
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// This is what we want to use and what we will use once the
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// compilers get good enough.
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//string tmpstr(ii, end); // yet a reason for using std::string
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// alternate approach to get the file into a string:
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string tmpstr;
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copy(ii, end, back_inserter(tmpstr));
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#endif
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return tmpstr;
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}
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// This function runs "configure" and then rereads lyx.defaults to
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// reconfigure the automatic settings.
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void Reconfigure(BufferView * bv)
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{
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bv->owner()->message(_("Running configure..."));
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// Run configure in user lyx directory
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Path p(user_lyxdir());
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Systemcall one;
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one.startscript(Systemcall::Wait,
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QuoteName(AddName(system_lyxdir(), "configure")));
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p.pop();
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bv->owner()->message(_("Reloading configuration..."));
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lyxrc.read(LibFileSearch(string(), "lyxrc.defaults"));
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Alert::information(_("System reconfigured"),
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_("The system has been reconfigured.\n"
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"You need to restart LyX to make use of any\n"
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"updated document class specifications."));
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}
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