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path: root/src/ephy-main.c
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/*
 *  Copyright (C) 2000-2002 Marco Pesenti Gritti
 *  Copyright (C) 2006 Christian Persch
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2, or (at your option)
 *  any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *
 *  $Id$
 */

#include "config.h"

#include "ephy-shell.h"
#include "ephy-file-helpers.h"
#include "ephy-object-helpers.h"
#include "ephy-state.h"
#include "ephy-debug.h"
#include "ephy-stock-icons.h"
#include "eel-gconf-extensions.h"
#include "ephy-dbus-client-bindings.h"
#include "ephy-activation.h"
#include "ephy-session.h"
#include "ephy-shell.h"
#include "ephy-debug.h"

#include <libxml/xmlversion.h>

#include <glib/gi18n.h>

#include <gdk/gdkx.h>
#include <gtk/gtkaboutdialog.h>
#include <gtk/gtkmain.h>
#include <gtk/gtkmessagedialog.h>

#include <libgnome/gnome-program.h>
#include <libgnomeui/gnome-client.h>
#include <libgnomeui/gnome-ui-init.h>

#include <libgnomevfs/gnome-vfs-init.h>
#include <libgnomevfs/gnome-vfs-utils.h>
#include <libgnomeui/gnome-app-helper.h>

#include <errno.h>
#include <string.h>

static GQuark startup_error_quark = 0;
#define STARTUP_ERROR_QUARK (startup_error_quark)

static gboolean open_in_new_tab = FALSE;
static gboolean open_in_new_window = FALSE;
static gboolean open_as_bookmarks_editor = FALSE;
static gboolean private_instance = FALSE;
//static gboolean reload_plugins = FALSE;

static char *session_filename = NULL;
static char *bookmark_url = NULL;
static char *bookmarks_file = NULL;
static char **extra_arguments = NULL;

static const GOptionEntry option_entries[] =
{
    { "new-tab", 'n', 0, G_OPTION_ARG_NONE, &open_in_new_tab,
      N_("Open a new tab in an existing browser window"), NULL },
    { "new-window", 0, 0, G_OPTION_ARG_NONE, &open_in_new_window,
      N_("Open a new browser window"), NULL },
    { "bookmarks-editor", 'b', 0, G_OPTION_ARG_NONE, &open_as_bookmarks_editor,
      N_("Launch the bookmarks editor"), NULL },
    { "import-bookmarks", '\0', 0, G_OPTION_ARG_FILENAME, &bookmarks_file,
      N_("Import bookmarks from the given file"), N_("FILE") },
    { "load-session", 'l', 0, G_OPTION_ARG_FILENAME, &session_filename,
      N_("Load the given session file"), N_("FILE") },
    { "add-bookmark", 't', 0, G_OPTION_ARG_STRING, &bookmark_url,
      N_("Add a bookmark"), N_("URL") },
    { "private-instance", 0, 0, G_OPTION_ARG_NONE, &private_instance,
      N_("Start a private instance"), NULL },
    { G_OPTION_REMAINING, '\0', 0, G_OPTION_ARG_STRING_ARRAY, &extra_arguments,
      "", "" },
    { NULL }
};

#ifndef GNOME_PARAM_GOPTION_CONTEXT
/* libgnome < 2.13 compat */
static char *sm_client_id = NULL;
static char *sm_config_prefix = NULL;
static gboolean sm_disable = FALSE;
static gboolean disable_crash_dialog = FALSE;

static const GOptionEntry libgnome_option_entries[] =
{
    { "sm-client-id", 0, 0, G_OPTION_ARG_STRING, &sm_client_id,
      "Specify session management ID", "ID" },
    { "sm-config-prefix", 0, 0, G_OPTION_ARG_STRING, &sm_config_prefix,
      "Specify prefix of saved configuration", "PREFIX" },
    { "sm-disable", 0, 0, G_OPTION_ARG_NONE, &sm_disable,
      "Disable connection to session manager", NULL },
    { "disable-crash-dialog", 0, 0, G_OPTION_ARG_NONE, &disable_crash_dialog,
      "Disable Crash Dialog", NULL },
    { NULL }
};
#endif /* !GNOME_PARAM_GOPTION_CONTEXT */

#ifdef GNOME_ENABLE_DEBUG
static GOptionEntry debug_option_entries[] =
{
    { "private-instance", 0, 0, G_OPTION_ARG_NONE, &private_instance,
      N_("Start a private instance"), NULL },
    { NULL }
};
#endif /* GNOME_ENABLE_DEBUG */

/* adapted from gtk+/gdk/x11/gdkdisplay-x11.c */
static guint32
get_startup_id (void)
{
    const char *startup_id, *time_str;
    guint32 retval = 0;

    startup_id = g_getenv ("DESKTOP_STARTUP_ID");
    if (startup_id == NULL) return 0;

    /* Find the launch time from the startup_id, if it's there.  Newer spec
    * states that the startup_id is of the form <unique>_TIME<timestamp>
    */
    time_str = g_strrstr (startup_id, "_TIME");
    if (time_str != NULL)
    {
        gulong value;
        gchar *end;
        errno = 0;
    
        /* Skip past the "_TIME" part */
        time_str += 5;
    
        value = strtoul (time_str, &end, 0);
        if (end != time_str && errno == 0)
        {
            retval = (guint32) value;
        }
    }

    return retval;
}

/* Copied from libnautilus/nautilus-program-choosing.c; Needed in case
 * we have no DESKTOP_STARTUP_ID (with its accompanying timestamp).
 */
static Time
slowly_and_stupidly_obtain_timestamp (Display *xdisplay)
{
    Window xwindow;
    XEvent event;
    
    {
        XSetWindowAttributes attrs;
        Atom atom_name;
        Atom atom_type;
        char* name;
        
        attrs.override_redirect = True;
        attrs.event_mask = PropertyChangeMask | StructureNotifyMask;
        
        xwindow =
            XCreateWindow (xdisplay,
                       RootWindow (xdisplay, 0),
                       -100, -100, 1, 1,
                       0,
                       CopyFromParent,
                       CopyFromParent,
                       CopyFromParent,
                       CWOverrideRedirect | CWEventMask,
                       &attrs);
        
        atom_name = XInternAtom (xdisplay, "WM_NAME", TRUE);
        g_assert (atom_name != None);
        atom_type = XInternAtom (xdisplay, "STRING", TRUE);
        g_assert (atom_type != None);
        
        name = "Fake Window";
        XChangeProperty (xdisplay, 
                 xwindow, atom_name,
                 atom_type,
                 8, PropModeReplace, (unsigned char *)name, strlen (name));
    }
    
    XWindowEvent (xdisplay,
              xwindow,
              PropertyChangeMask,
              &event);
    
    XDestroyWindow(xdisplay, xwindow);
    
    return event.xproperty.time;
}

static void
handle_url (GtkAboutDialog *about,
        const char *link,
        gpointer data)
{
    ephy_shell_new_tab (ephy_shell_get_default (),
                NULL, NULL, link,
                EPHY_NEW_TAB_OPEN_PAGE);
}

static void
handle_email (GtkAboutDialog *about,
          const char *link,
          gpointer data)
{
    char *address;

    address = g_strdup_printf ("mailto:%s", link);
    gnome_vfs_url_show (address);
    g_free (address);
}

static void
shell_weak_notify (gpointer data,
                   GObject *zombie)
{
    if (gtk_main_level ())
    {
        gtk_main_quit ();
    }
}

static void
dbus_g_proxy_finalized_cb (EphyShell *shell,
               GObject *zombie)
{
    LOG ("dbus_g_proxy_finalized_cb");

    g_object_unref (shell);
}

/* Gnome session client */

static gboolean
save_yourself_cb (GnomeClient *client,
          gint phase,
          GnomeSaveStyle save_style,
          gboolean shutdown,
          GnomeInteractStyle interact_style,
          gboolean fast,
          gpointer user_data)
{
    EphyShell *shell;
    EphySession *session;
    char *argv[] = { NULL, "--load-session", NULL };
    char *discard_argv[] = { "rm", "-f", NULL };
    char *tmp, *save_to;

    LOG ("save_yourself_cb");

    /* FIXME FIXME */
    if (!ephy_shell_get_default ()) return FALSE;

    tmp = g_build_filename (ephy_dot_dir (),
                "session_gnome-XXXXXX",
                NULL);
    save_to = ephy_file_tmp_filename (tmp, "xml");
    g_free (tmp);

    shell = ephy_shell_get_default ();
    g_assert (shell != NULL);

    session = EPHY_SESSION (ephy_shell_get_session (shell));
    g_assert (session != NULL);

    argv[0] = g_get_prgname ();
    argv[2] = save_to;
    gnome_client_set_restart_command
        (client, 3, argv);

    discard_argv[2] = save_to;
    gnome_client_set_discard_command (client, 3,
                      discard_argv);

    ephy_session_save (session, save_to);

    g_free (save_to);

    return TRUE;
}

static void
die_cb (GnomeClient* client,
    gpointer user_data)
    
{
    EphyShell *shell;
    EphySession *session;

    LOG ("die_cb");

    /* FIXME FIXME */
    if (!ephy_shell_get_default ()) return;

    shell = ephy_shell_get_default ();
    g_assert (shell != NULL);

    session = EPHY_SESSION (ephy_shell_get_session (shell));
    g_assert (session != NULL);

    ephy_session_close (session);
}

static void
gnome_session_init (void)
{
    GnomeClient *client;

    client = gnome_master_client ();

    g_signal_connect (client, "save_yourself",
              G_CALLBACK (save_yourself_cb), NULL);
    g_signal_connect (client, "die",
              G_CALLBACK (die_cb), NULL);
}

#if 0
static char *
path_from_command_line_arg (const char *arg)
{
    char path[PATH_MAX];

    if (realpath (arg, path) != NULL)
    {
        return g_strdup (path);
    }
    else
    {
        return g_strdup (arg);
    }
}
#endif

static void
unref_proxy_reply_cb (DBusGProxy *proxy,
              GError *error,
              gpointer user_data)
{
    if (error != NULL)
    {
        g_warning ("An error occured while calling remote method: %s", error->message);
        g_error_free (error);// FIXME???
    }

    g_object_unref (proxy);

    if (!_ephy_dbus_is_name_owner () && gtk_main_level ())
    {
        gtk_main_quit ();
    }
}

static gboolean
open_urls (DBusGProxy *proxy,
       guint32 user_time,
       GError **error)
{
    static const char *empty_arguments[] = { "", NULL };
    GString *options;

    options = g_string_sized_new (64);

    if (open_in_new_window)
    {
        g_string_append (options, "new-window,");
    }
    if (open_in_new_tab)
    {
        g_string_append (options, "new-tab,");
    }

    org_gnome_Epiphany_load_uris_async
        (proxy,
         extra_arguments ? (const char**) extra_arguments : (const char**)empty_arguments,
         options->str, user_time,
         unref_proxy_reply_cb, NULL);
    
    if (extra_arguments)
    {
        g_strfreev (extra_arguments);
        extra_arguments = NULL;
    }

    g_string_free (options, TRUE);

    return TRUE;
}

static gboolean
call_dbus_proxy (DBusGProxy *proxy,
         guint32 user_time,
         GError **error)
{
    EphyShell *shell;
    gboolean retval = TRUE;

    shell = ephy_shell_get_default ();

    if (open_as_bookmarks_editor)
    {
        org_gnome_Epiphany_open_bookmarks_editor_async
            (proxy, user_time,
             unref_proxy_reply_cb, shell);
    }
    else if (session_filename != NULL)
    {
        org_gnome_Epiphany_load_session_async
            (proxy, session_filename, user_time,
             unref_proxy_reply_cb, shell);
    }
    else
    {
        /* no need to open the homepage if autoresume returns TRUE;
         * we already opened session windows */
        if (!_ephy_dbus_is_name_owner () ||
            (ephy_session_autoresume
            (EPHY_SESSION (ephy_shell_get_session (shell)),
             user_time) == FALSE))
        {
            retval = open_urls (proxy, user_time, error);
        }
        else
        {
            ephy_object_idle_unref (proxy);
        }
    }

    /* FIXME why? */
    dbus_g_connection_flush (ephy_dbus_get_bus (ephy_dbus_get_default (), EPHY_DBUS_SESSION));

    return retval;
}

static void
show_error_message (GError **error)
{
    GtkWidget *dialog;

    /* FIXME better texts!!! */
    dialog = gtk_message_dialog_new (NULL,
                     GTK_DIALOG_MODAL,
                     GTK_MESSAGE_ERROR,
                     GTK_BUTTONS_CLOSE,
                     _("Could not start GNOME Web Browser"));
    gtk_message_dialog_format_secondary_text
        (GTK_MESSAGE_DIALOG (dialog),
         _("Startup failed because of the following error:\n%s"),
         (*error)->message);

    g_clear_error (error);

    gtk_dialog_run (GTK_DIALOG (dialog));
}

int
main (int argc,
      char *argv[])
{
    GOptionContext *option_context;
    GOptionGroup *option_group;
    DBusGProxy *proxy;
    GError *error = NULL;
    guint32 user_time;
    const char *env;
#ifndef GNOME_PARAM_GOPTION_CONTEXT
    GPtrArray *fake_argv_array;
#endif

#ifdef ENABLE_NLS
    /* Initialize the i18n stuff */
    bindtextdomain (GETTEXT_PACKAGE, GNOMELOCALEDIR);
    bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
    textdomain (GETTEXT_PACKAGE);
#endif

    /* check libxml2 API version epiphany was compiled with against the
     * version we're running with.
     */
    LIBXML_TEST_VERSION

    /* Initialise our debug helpers */
    ephy_debug_init ();

    /* get this early, since gdk will unset the env var */
    user_time = get_startup_id ();

    option_context = g_option_context_new (_("GNOME Web Browser"));
    option_group = g_option_group_new ("epiphany",
                       N_("GNOME Web Browser"),
                       N_("GNOME Web Browser options"),
                       NULL, NULL);
    g_option_group_add_entries (option_group, option_entries);

    g_option_context_set_main_group (option_context, option_group);

#ifdef GNOME_ENABLE_DEBUG
    option_group = g_option_group_new ("debug",
                       "Epiphany debug options",
                       "Epiphany debug options",
                       NULL, NULL);
    g_option_group_add_entries (option_group, debug_option_entries);
    g_option_context_add_group (option_context, option_group);
#endif /* GNOME_ENABLE_DEBUG */

#ifdef GNOME_PARAM_GOPTION_CONTEXT
    gnome_program_init (PACKAGE, VERSION,
                LIBGNOMEUI_MODULE, argc, argv,
                GNOME_PARAM_GOPTION_CONTEXT, option_context,
                GNOME_PARAM_HUMAN_READABLE_NAME, _("Web Browser"),
                GNOME_PARAM_APP_DATADIR, DATADIR,
                NULL);

#else /* !GNOME_PARAM_GOPTION_CONTEXT */

    option_group = g_option_group_new ("gnome-compat", "GNOME GUI Library",
                       "Show GNOME GUI options", NULL, NULL);
    g_option_group_set_translation_domain (option_group, "libgnomeui-2.0");
    g_option_group_add_entries (option_group, libgnome_option_entries);
    g_option_context_add_group (option_context, option_group);

    /* Add the gtk+ option group, but don't open the default display! */
    option_group = gtk_get_option_group (FALSE);
    g_option_context_add_group (option_context, option_group);

    if (!g_option_context_parse (option_context, &argc, &argv, &error))
    {
        g_print ("%s\n", error->message);
        g_error_free (error);
        exit (1);
    }

    fake_argv_array = g_ptr_array_new ();
    
    g_ptr_array_add (fake_argv_array, g_strdup (g_get_prgname ()));
    if (sm_disable)
    {
        g_ptr_array_add (fake_argv_array, g_strdup ("--sm-disable"));
    }
    if (sm_client_id != NULL)
    {
        g_ptr_array_add (fake_argv_array, g_strdup ("--sm-client-id"));
        g_ptr_array_add (fake_argv_array, sm_client_id);
    }
    if (sm_config_prefix != NULL)
    {
        g_ptr_array_add (fake_argv_array, g_strdup ("--sm-config-prefix"));
        g_ptr_array_add (fake_argv_array, sm_config_prefix);
    }
    if (disable_crash_dialog)
    {
        g_ptr_array_add (fake_argv_array, g_strdup ("--disable-crash-dialog"));
    }

    gnome_program_init (PACKAGE, VERSION,
                LIBGNOMEUI_MODULE,
                fake_argv_array->len,
                (char**) fake_argv_array->pdata,
                GNOME_PARAM_HUMAN_READABLE_NAME, _("Web Browser"),
                GNOME_PARAM_APP_DATADIR, DATADIR,
                NULL);

    g_ptr_array_add (fake_argv_array, NULL);
    g_strfreev ((char**) g_ptr_array_free (fake_argv_array, FALSE));

    g_option_context_free (option_context);
    option_context = NULL;

#endif /* GNOME_PARAM_GOPTION_CONTEXT */

    /* Get a timestamp manually if need be */
    if (user_time == 0)
    {
        user_time = slowly_and_stupidly_obtain_timestamp (gdk_display);
    }

    /* sets the name to appear in the window list applet when grouping windows */
    g_set_application_name (_("Web Browser"));

    /* Set default window icon */
    gtk_window_set_default_icon_name ("web-browser");

    startup_error_quark = g_quark_from_static_string ("epiphany-startup-error");

    if (!_ephy_dbus_startup (&error))
    {
        _ephy_dbus_release ();

        show_error_message (&error);

        exit (1);
    }

    /* Create DBUS proxy */
    proxy = ephy_dbus_get_proxy (ephy_dbus_get_default (), EPHY_DBUS_SESSION);
    if (proxy == NULL)
    {
        error = g_error_new (STARTUP_ERROR_QUARK,
                     0,
                     "Unable to get DBus proxy; aborting activation."); /* FIXME i18n */

        _ephy_dbus_release ();

        show_error_message (&error);

        exit (1);
    }

    /* If we're remoting, no need to start up any further services,
     * just forward the call.
     */
    if (!_ephy_dbus_is_name_owner ())
    {
        if (!call_dbus_proxy (proxy, user_time, &error))
        {
            _ephy_dbus_release ();

            show_error_message (&error);

            exit (1);
        }

        /* Wait for the response */
        gtk_main ();

        _ephy_dbus_release ();

        gdk_notify_startup_complete ();
        exit (0);
    }

    /* We're not remoting; start our services */

    if (!ephy_file_helpers_init (FALSE, &error))
    {
        _ephy_dbus_release ();

        show_error_message (&error);

        exit (1);
    }

    /* init the session manager up here so we can quit while the resume dialogue is shown */
    gnome_session_init ();

    eel_gconf_monitor_add ("/apps/epiphany/general");
    gnome_vfs_init ();
    ephy_stock_icons_init ();

    /* Extensions may want these, so don't initialize in window-cmds */
    gtk_about_dialog_set_url_hook (handle_url, NULL, NULL);
    gtk_about_dialog_set_email_hook (handle_email, NULL, NULL);

    /* Work around bug #328844 */
    env = g_getenv ("MOZ_ENABLE_PANGO");
    if (env == NULL ||
        env[0] == '\0' ||
        strcmp (env, "0") == 0)
    {
        g_setenv ("MOZ_DISABLE_PANGO", "1", TRUE);
    }

    /* Now create the shell */
    _ephy_shell_create_instance ();
    g_object_weak_ref (G_OBJECT (proxy),
               (GWeakNotify) dbus_g_proxy_finalized_cb,
               g_object_ref (ephy_shell_get_default ()));

    if (!call_dbus_proxy (proxy, user_time, &error))
    {
        g_object_unref (ephy_shell_get_default ());
        g_object_unref (proxy);
        g_assert (ephy_shell_get_default () == NULL);

        ephy_file_helpers_shutdown ();
        _ephy_dbus_release ();

        show_error_message (&error);

        exit (1);
    }

    /* We'll release the initial reference on idle */
    g_object_weak_ref (G_OBJECT (ephy_shell), shell_weak_notify, NULL);
    ephy_object_idle_unref (ephy_shell);

    gtk_main ();

    /* Shutdown */
    eel_gconf_monitor_remove ("/apps/epiphany/general");
    gnome_accelerators_sync ();
    ephy_state_save ();
    ephy_file_helpers_shutdown ();
    gnome_vfs_shutdown ();
    xmlCleanupParser ();

    _ephy_dbus_release ();

    return 0;
}