lyx_mirror/src/lyx_cb.C
John Levon 2b2c661f84 Michael's text fixes
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@5980 a592a061-630c-0410-9148-cb99ea01b6c8
2003-01-23 16:23:43 +00:00

543 lines
13 KiB
C

/* This file is part of
* ======================================================
*
* LyX, The Document Processor
*
* Copyright 1995 Matthias Ettrich,
* Copyright 1995-2001 The LyX Team.
*
* ====================================================== */
#include <config.h>
#include "lyx_cb.h"
#include "lyx_main.h"
#include "buffer.h"
#include "bufferlist.h"
#include "bufferview_funcs.h"
#include "debug.h"
#include "lastfiles.h"
#include "lyxrc.h"
#include "lyxtext.h"
#include "gettext.h"
#include "BufferView.h"
#include "insets/insetlabel.h"
#include "frontends/lyx_gui.h"
#include "frontends/LyXView.h"
#include "frontends/Alert.h"
#include "frontends/FileDialog.h"
#include "support/FileInfo.h"
#include "support/filetools.h"
#include "support/forkedcall.h"
#include "support/path.h"
#include "support/systemcall.h"
#include "support/lstrings.h"
#include "BoostFormat.h"
#include <fstream>
#include <algorithm>
#include <utility>
using std::vector;
using std::ifstream;
using std::copy;
using std::endl;
using std::ios;
using std::back_inserter;
using std::istream_iterator;
using std::pair;
using std::make_pair;
extern BufferList bufferlist;
// this should be static, but I need it in buffer.C
bool quitting; // flag, that we are quitting the program
void ShowMessage(Buffer const * buf,
string const & msg1,
string const & msg2,
string const & msg3)
{
if (lyxrc.use_gui
&& buf && buf->getUser() && buf->getUser()->owner()) {
string const str = msg1 + ' ' + msg2 + ' ' + msg3;
buf->getUser()->owner()->message(str);
} else
lyxerr << msg1 << msg2 << msg3 << endl;
}
//
// Menu callbacks
//
//
// File menu
//
// should be moved to lyxfunc.C
bool MenuWrite(BufferView * bv, Buffer * buffer)
{
if (!buffer->save()) {
if (Alert::askQuestion(_("Save failed. Rename and try again?"),
MakeDisplayPath(buffer->fileName(), 50),
_("(If not, document is not saved.)"))) {
return WriteAs(bv, buffer);
}
return false;
} else
lastfiles->newFile(buffer->fileName());
return true;
}
// should be moved to BufferView.C
// Half of this func should be in LyXView, the rest in BufferView.
bool WriteAs(BufferView * bv, Buffer * buffer, string const & filename)
{
string fname = buffer->fileName();
string const oldname = fname;
if (filename.empty()) {
FileDialog fileDlg(bv->owner(),
_("Choose a filename to save document as"),
LFUN_WRITEAS,
make_pair(string(_("Documents|#o#O")),
string(lyxrc.document_path)),
make_pair(string(_("Templates|#T#t")),
string(lyxrc.template_path)));
if (!IsLyXFilename(fname))
fname += ".lyx";
FileDialog::Result result =
fileDlg.save(OnlyPath(fname),
_("*.lyx| LyX Documents (*.lyx)"),
OnlyFilename(fname));
if (result.first == FileDialog::Later)
return false;
fname = result.second;
if (fname.empty())
return false;
// Make sure the absolute filename ends with appropriate suffix
fname = MakeAbsPath(fname);
if (!IsLyXFilename(fname))
fname += ".lyx";
} else
fname = filename;
// Same name as we have already?
if (!buffer->isUnnamed() && fname == oldname) {
if (!Alert::askQuestion(_("Same name as document already has:"),
MakeDisplayPath(fname, 50),
_("Save anyway?")))
return false;
// Falls through to name change and save
}
// No, but do we have another file with this name open?
else if (!buffer->isUnnamed() && bufferlist.exists(fname)) {
if (Alert::askQuestion(_("Another document with same name open!"),
MakeDisplayPath(fname, 50),
_("Replace with current document?")))
{
bufferlist.close(bufferlist.getBuffer(fname));
// Ok, change the name of the buffer, but don't save!
buffer->setFileName(fname);
buffer->markDirty();
ShowMessage(buffer, _("Document renamed to '"),
MakeDisplayPath(fname), _("', but not saved..."));
}
return false;
} // Check whether the file exists
else {
FileInfo const myfile(fname);
if (myfile.isOK() && !Alert::askQuestion(_("Document already exists:"),
MakeDisplayPath(fname, 50),
_("Replace file?")))
return false;
}
// Ok, change the name of the buffer
buffer->setFileName(fname);
buffer->markDirty();
bool unnamed = buffer->isUnnamed();
buffer->setUnnamed(false);
if (!MenuWrite(bv, buffer)) {
buffer->setFileName(oldname);
buffer->setUnnamed(unnamed);
ShowMessage(buffer, _("Document could not be saved!"),
_("Holding the old name."), MakeDisplayPath(oldname));
return false;
}
// now remove the oldname autosave file if existant!
removeAutosaveFile(oldname);
return true;
}
int MenuRunChktex(Buffer * buffer)
{
int ret;
if (buffer->isSGML()) {
Alert::alert(_("Chktex does not work with SGML derived documents."));
return 0;
} else
ret = buffer->runChktex();
if (ret >= 0) {
string s;
string t;
if (ret == 0) {
s = _("No warnings found.");
} else if (ret == 1) {
s = _("One warning found.");
t = _("Use `Navigate->Error' to find it.");
} else {
s += tostr(ret);
s += _(" warnings found.");
t = _("Use `Navigate->Error' to find them.");
}
Alert::alert(_("Chktex run successfully"), s, t);
} else {
Alert::alert(_("Error!"), _("It seems chktex does not work."));
}
return ret;
}
void QuitLyX()
{
lyxerr[Debug::INFO] << "Running QuitLyX." << endl;
if (lyxrc.use_gui) {
if (!bufferlist.qwriteAll())
return;
lastfiles->writeFile(lyxrc.lastfiles);
}
// Set a flag that we do quitting from the program,
// so no refreshes are necessary.
quitting = true;
// close buffers first
bufferlist.closeAll();
// do any other cleanup procedures now
lyxerr[Debug::INFO] << "Deleting tmp dir " << system_tempdir << endl;
DestroyLyXTmpDir(system_tempdir);
lyx_gui::exit();
}
namespace {
class AutoSaveBuffer : public ForkedProcess {
public:
///
AutoSaveBuffer(BufferView & bv, string const & fname)
: bv_(bv), fname_(fname) {}
///
virtual ForkedProcess * clone() const {
return new AutoSaveBuffer(*this);
}
///
int start();
private:
///
virtual int generateChild();
///
BufferView & bv_;
string fname_;
};
int AutoSaveBuffer::start()
{
#if USE_BOOST_FORMAT
command_ = boost::io::str(boost::format(_("Auto-saving %1$s")) % fname_);
#else
command_ = _("Auto-saving ") + fname_;
#endif
return runNonBlocking();
}
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;
string const tmp_ret = lyx::tempName(string(), "lyxauto");
if (!tmp_ret.empty()) {
bv_.buffer()->writeFile(tmp_ret);
// assume successful write of tmp_ret
if (!lyx::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)
lyx::unlink(tmp_ret);
}
} else {
failed = true;
}
if (failed) {
// failed to write/rename tmp_ret so try writing direct
if (!bv_.buffer()->writeFile(fname_)) {
// It is dangerous to do this in the child,
// but safe in the parent, so...
if (pid == -1)
bv_.owner()->message(_("Autosave failed!"));
}
}
if (pid == 0) { // we are the child so...
_exit(0);
}
}
return pid;
}
} // namespace anon
void AutoSave(BufferView * bv)
// should probably be moved into BufferList (Lgb)
// Perfect target for a thread...
{
if (!bv->available())
return;
if (bv->buffer()->isBakClean() || bv->buffer()->isReadonly()) {
// We don't save now, but we'll try again later
bv->owner()->resetAutosaveTimer();
return;
}
bv->owner()->message(_("Autosaving current document..."));
// create autosave filename
string fname = bv->buffer()->filePath();
fname += '#';
fname += OnlyFilename(bv->buffer()->fileName());
fname += '#';
AutoSaveBuffer autosave(*bv, fname);
autosave.start();
bv->buffer()->markBakClean();
bv->owner()->resetAutosaveTimer();
}
//
// Copyright CHT Software Service GmbH
// Uwe C. Schroeder
//
// create new file with template
// SERVERCMD !
//
Buffer * NewFile(string const & filename)
{
// Split argument by :
string name;
string tmpname = split(filename, name, ':');
#ifdef __EMX__ // Fix me! lyx_cb.C may not be low level enough to allow this.
if (name.length() == 1
&& isalpha(static_cast<unsigned char>(name[0]))
&& (prefixIs(tmpname, "/") || prefixIs(tmpname, "\\"))) {
name += ':';
name += token(tmpname, ':', 0);
tmpname = split(tmpname, ':');
}
#endif
lyxerr[Debug::INFO] << "Arg is " << filename
<< "\nName is " << name
<< "\nTemplate is " << tmpname << endl;
// find a free buffer
Buffer * tmpbuf = bufferlist.newFile(name, tmpname);
if (tmpbuf)
lastfiles->newFile(tmpbuf->fileName());
return tmpbuf;
}
// Insert ascii file (if filename is empty, prompt for one)
void InsertAsciiFile(BufferView * bv, string const & f, bool asParagraph)
{
if (!bv->available())
return;
string const tmpstr = getContentsOfAsciiFile(bv, f, asParagraph);
if (tmpstr.empty())
return;
// insert the string
bv->hideCursor();
// clear the selection
bool flag = (bv->text == bv->getLyXText());
if (flag)
bv->beforeChange(bv->text);
if (!asParagraph)
bv->getLyXText()->insertStringAsLines(bv, tmpstr);
else
bv->getLyXText()->insertStringAsParagraphs(bv, tmpstr);
if (flag)
bv->update(bv->text,
BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
}
// Insert ascii file (if filename is empty, prompt for one)
string getContentsOfAsciiFile(BufferView * bv, string const & f, bool asParagraph)
{
string fname = f;
if (fname.empty()) {
FileDialog fileDlg(bv->owner(), _("Select file to insert"),
(asParagraph) ? LFUN_FILE_INSERT_ASCII_PARA : LFUN_FILE_INSERT_ASCII);
FileDialog::Result result = fileDlg.open(bv->owner()->buffer()->filePath());
if (result.first == FileDialog::Later)
return string();
fname = result.second;
if (fname.empty())
return string();
}
FileInfo fi(fname);
if (!fi.readable()) {
Alert::err_alert(_("Error! Specified file is unreadable: "),
MakeDisplayPath(fname, 50));
return string();
}
ifstream ifs(fname.c_str());
if (!ifs) {
Alert::err_alert(_("Error! Cannot open specified file:"),
MakeDisplayPath(fname, 50));
return string();
}
ifs.unsetf(ios::skipws);
istream_iterator<char> ii(ifs);
istream_iterator<char> end;
#if !defined(USE_INCLUDED_STRING) && !defined(STD_STRING_IS_GOOD)
// We use this until the compilers get better...
vector<char> tmp;
copy(ii, end, back_inserter(tmp));
string const tmpstr(tmp.begin(), tmp.end());
#else
// This is what we want to use and what we will use once the
// compilers get good enough.
//string tmpstr(ii, end); // yet a reason for using std::string
// alternate approach to get the file into a string:
string tmpstr;
copy(ii, end, back_inserter(tmpstr));
#endif
return tmpstr;
}
void MenuInsertLabel(BufferView * bv, string const & arg)
{
string label = arg;
bv->owner()->prohibitInput();
if (label.empty()) {
Paragraph * par = bv->getLyXText()->cursor.par();
LyXLayout_ptr layout = par->layout();
if (layout->latextype == LATEX_PARAGRAPH && par->previous()) {
Paragraph * par2 = par->previous();
LyXLayout_ptr const & layout2 = par2->layout();
if (layout2->latextype != LATEX_PARAGRAPH) {
par = par2;
layout = layout2;
}
}
string text = layout->latexname().substr(0, 3);
if (layout->latexname() == "theorem")
text = "thm"; // Create a correct prefix for prettyref
text += ':';
if (layout->latextype == LATEX_PARAGRAPH ||
lyxrc.label_init_length < 0)
text.erase();
string par_text = par->asString(bv->buffer(), false);
for (int i = 0; i < lyxrc.label_init_length; ++i) {
if (par_text.empty())
break;
string head;
par_text = split(par_text, head, ' ');
if (i > 0)
text += '-'; // Is it legal to use spaces in
// labels ?
text += head;
}
pair<bool, string> result =
Alert::askForText(_("Enter new label to insert:"), text);
if (result.first) {
label = trim(result.second);
}
}
if (!label.empty()) {
InsetCommandParams p("label", label);
InsetLabel * inset = new InsetLabel(p);
bv->insertInset(inset);
}
bv->owner()->allowInput();
}
// This function runs "configure" and then rereads lyx.defaults to
// reconfigure the automatic settings.
void Reconfigure(BufferView * bv)
{
bv->owner()->message(_("Running configure..."));
// Run configure in user lyx directory
Path p(user_lyxdir);
Systemcall one;
one.startscript(Systemcall::Wait,
AddName(system_lyxdir, "configure"));
p.pop();
bv->owner()->message(_("Reloading configuration..."));
lyxrc.read(LibFileSearch(string(), "lyxrc.defaults"));
Alert::alert(_("The system has been reconfigured."),
_("You need to restart LyX to make use of any"),
_("updated document class specifications."));
}