]> git.lyx.org Git - lyx.git/blobdiff - src/lyx_main.C
get rid of broken_header.h and some unneeded tests
[lyx.git] / src / lyx_main.C
index f9b845e70e8852e5461f0d74c17a96600f44d387..879e9c2df6560862ac6feee6ae955ed82ad59053 100644 (file)
 #include "lyxtextclasslist.h"
 #include "lyxserver.h"
 #include "MenuBackend.h"
+#include "mover.h"
 #include "ToolbarBackend.h"
 
+#include "mathed/math_inset.h"
+
 #include "frontends/Alert.h"
 #include "frontends/lyx_gui.h"
+#include "frontends/LyXView.h"
 
 #include "support/FileInfo.h"
 #include "support/filetools.h"
@@ -57,7 +61,7 @@ using lyx::support::AddName;
 using lyx::support::AddPath;
 using lyx::support::bformat;
 using lyx::support::createDirectory;
-using lyx::support::CreateLyXTmpDir;
+using lyx::support::createLyXTmpDir;
 using lyx::support::FileInfo;
 using lyx::support::FileSearch;
 using lyx::support::GetEnv;
@@ -70,7 +74,8 @@ using lyx::support::setLyxPaths;
 using lyx::support::system_lyxdir;
 using lyx::support::user_lyxdir;
 
-namespace os = lyx::support::os;
+using lyx::support::os::getTmpDir;
+using lyx::support::os::setTmpDir;
 
 using std::endl;
 using std::string;
@@ -87,8 +92,6 @@ extern void QuitLyX();
 
 extern LyXServer * lyxserver;
 
-boost::scoped_ptr<LastFiles> lastfiles;
-
 // This is the global bufferlist object
 BufferList bufferlist;
 
@@ -105,19 +108,85 @@ void showFileError(string const & error)
        exit(EXIT_FAILURE);
 }
 
+} // namespace anon
+
+
+boost::scoped_ptr<LyX> LyX::singleton_;
+
+void LyX::exec(int & argc, char * argv[])
+{
+       BOOST_ASSERT(!singleton_.get());
+       // We must return from this before launching the gui so that
+       // other parts of the code can access singleton_ through
+       // LyX::ref and LyX::cref.
+       singleton_.reset(new LyX);
+       // Start the real execution loop.
+       singleton_->priv_exec(argc, argv);
+}
+
+
+LyX & LyX::ref()
+{
+       BOOST_ASSERT(singleton_.get());
+       return *singleton_.get();
+}
+
+
+LyX const & LyX::cref()
+{
+       BOOST_ASSERT(singleton_.get());
+       return *singleton_.get();
+}
+
+
+LyX::LyX()
+       : first_start(false)
+{}
+
+
+LastFiles & LyX::lastfiles()
+{
+       BOOST_ASSERT(lastfiles_.get());
+       return *lastfiles_.get();
+}
+
+
+LastFiles const & LyX::lastfiles() const
+{
+       BOOST_ASSERT(lastfiles_.get());
+       return *lastfiles_.get();
+}
+
+
+void LyX::addLyXView(boost::shared_ptr<LyXView> const & lyxview)
+{
+       views_.push_back(lyxview);
 }
 
-LyX::LyX(int & argc, char * argv[])
+
+Buffer const * const LyX::updateInset(InsetBase const * inset) const
+{
+       if (!inset)
+               return 0;
+
+       Buffer const * buffer_ptr = 0;
+       ViewList::const_iterator it = views_.begin();
+       ViewList::const_iterator const end = views_.end();
+       for (; it != end; ++it) {
+               Buffer const * ptr = (*it)->updateInset(inset);
+               if (ptr)
+                       buffer_ptr = ptr;
+       }
+       return buffer_ptr;
+}
+
+
+void LyX::priv_exec(int & argc, char * argv[])
 {
        // Here we need to parse the command line. At least
        // we need to parse for "-dbg" and "-help"
        bool const want_gui = easyParse(argc, argv);
 
-       // set the DisplayTranslator only once; should that be done here??
-       // if this should not be in this file, please also remove
-       // #include "graphics/GraphicsTypes.h" at the top -- Rob Lahaye.
-       lyx::graphics::setDisplayTranslator();
-
        if (want_gui)
                lyx_gui::parse_init(argc, argv);
 
@@ -139,6 +208,8 @@ LyX::LyX(int & argc, char * argv[])
        if (want_gui)
                lyx_gui::parse_lyxrc();
 
+       initMath();
+
        vector<string> files;
 
        for (int argi = argc - 1; argi >= 1; --argi)
@@ -193,24 +264,42 @@ extern "C" {
 
 static void error_handler(int err_sig)
 {
+       // Throw away any signals other than the first one received.
+       static sig_atomic_t handling_error = false;
+       if (handling_error)
+               return;
+       handling_error = true;
+
+       // We have received a signal indicating a fatal error, so
+       // try and save the data ASAP.
+       LyX::cref().emergencyCleanup();
+
+       // These lyxerr calls may or may not work:
+
+       // Signals are asynchronous, so the main program may be in a very
+       // fragile state when a signal is processed and thus while a signal
+       // handler function executes.
+       // In general, therefore, we should avoid performing any
+       // I/O operations or calling most library and system functions from
+       // signal handlers.
+
+       // This shouldn't matter here, however, as we've already invoked
+       // emergencyCleanup.
        switch (err_sig) {
        case SIGHUP:
-               lyxerr << "\nlyx: SIGHUP signal caught" << endl;
-               break;
-       case SIGINT:
-               // no comments
+               lyxerr << "\nlyx: SIGHUP signal caught\nBye." << endl;
                break;
        case SIGFPE:
-               lyxerr << "\nlyx: SIGFPE signal caught" << endl;
+               lyxerr << "\nlyx: SIGFPE signal caught\nBye." << endl;
                break;
        case SIGSEGV:
-               lyxerr << "\nlyx: SIGSEGV signal caught" << endl;
-               lyxerr <<
-                       "Sorry, you have found a bug in LyX. "
-                       "Please read the bug-reporting instructions "
-                       "in Help->Introduction and send us a bug report, "
-                       "if necessary. Thanks !" << endl;
+               lyxerr << "\nlyx: SIGSEGV signal caught\n"
+                         "Sorry, you have found a bug in LyX. "
+                         "Please read the bug-reporting instructions "
+                         "in Help->Introduction and send us a bug report, "
+                         "if necessary. Thanks !\nBye." << endl;
                break;
+       case SIGINT:
        case SIGTERM:
                // no comments
                break;
@@ -223,11 +312,8 @@ static void error_handler(int err_sig)
        signal(SIGSEGV, SIG_DFL);
        signal(SIGTERM, SIG_DFL);
 
-       LyX::emergencyCleanup();
-
-       lyxerr << "Bye." << endl;
-       if (err_sig!= SIGHUP &&
-          (!GetEnv("LYXDEBUG").empty() || err_sig == SIGSEGV))
+       if (err_sig == SIGSEGV ||
+           (err_sig != SIGHUP && !GetEnv("LYXDEBUG").empty()))
                lyx::support::abort();
        exit(0);
 }
@@ -250,6 +336,7 @@ void LyX::init(bool gui)
        signal(SIGSEGV, error_handler);
        signal(SIGINT, error_handler);
        signal(SIGTERM, error_handler);
+       // SIGPIPE can be safely ignored.
 
        bool const explicit_userdir = setLyxPaths();
 
@@ -287,6 +374,7 @@ void LyX::init(bool gui)
        system_lyxrc = lyxrc;
        system_formats = formats;
        system_converters = converters;
+       system_movers = movers;
        system_lcolor = lcolor;
 
        string prefsfile = "preferences";
@@ -316,16 +404,30 @@ void LyX::init(bool gui)
        if (lyxerr.debugging(Debug::LYXRC))
                lyxrc.print();
 
-       os::setTmpDir(CreateLyXTmpDir(lyxrc.tempdir_path));
+       setTmpDir(createLyXTmpDir(lyxrc.tempdir_path));
+       if (getTmpDir().empty()) {
+               Alert::error(_("Could not create temporary directory"),
+                            bformat(_("Could not create a temporary directory in\n"
+                                      "%1$s. Make sure that this\n"
+                                      "path exists and is writable and try again."),
+                                    lyxrc.tempdir_path));
+               // createLyXTmpDir() tries sufficiently hard to create a
+               // usable temp dir, so the probability to come here is
+               // close to zero. We therefore don't try to overcome this
+               // problem with e.g. asking the user for a new path and
+               // trying again but simply exit.
+               exit(EXIT_FAILURE);
+       }
+
        if (lyxerr.debugging(Debug::INIT)) {
-               lyxerr << "LyX tmp dir: `" << os::getTmpDir() << '\'' << endl;
+               lyxerr << "LyX tmp dir: `" << getTmpDir() << '\'' << endl;
        }
 
        lyxerr[Debug::INIT] << "Reading lastfiles `"
                            << lyxrc.lastfiles << "'..." << endl;
-       lastfiles.reset(new LastFiles(lyxrc.lastfiles,
-                                     lyxrc.check_lastfiles,
-                                     lyxrc.num_lastfiles));
+       lastfiles_.reset(new LastFiles(lyxrc.lastfiles,
+                                      lyxrc.check_lastfiles,
+                                      lyxrc.num_lastfiles));
 }
 
 
@@ -350,10 +452,6 @@ void LyX::defaultKeyBindings(kb_keymap  * kbmap)
        kbmap->bind("Delete", FuncRequest(LFUN_DELETE));
        kbmap->bind("BackSpace", FuncRequest(LFUN_BACKSPACE));
 
-       // sub- and superscript -MV
-       kbmap->bind("~S-underscore", FuncRequest(LFUN_SUBSCRIPT));
-       kbmap->bind("~S-asciicircum", FuncRequest(LFUN_SUPERSCRIPT));
-
        // kbmap->bindings to enable the use of the numeric keypad
        // e.g. Num Lock set
        //kbmap->bind("KP_0", FuncRequest(LFUN_SELFINSERT));
@@ -387,7 +485,7 @@ void LyX::defaultKeyBindings(kb_keymap  * kbmap)
 }
 
 
-void LyX::emergencyCleanup()
+void LyX::emergencyCleanup() const
 {
        // what to do about tmpfiles is non-obvious. we would
        // like to delete any we find, but our lyxdir might