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gatuno-terminal/src/terminal.c

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/*
* Copyright © 2001, 2002 Havoc Pennington
* Copyright © 2002 Red Hat, Inc.
* Copyright © 2002 Sun Microsystems
* Copyright © 2003 Mariano Suarez-Alvarez
* Copyright © 2008, 2010 Christian Persch
*
* Mate-terminal 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 3 of the License, or
* (at your option) any later version.
*
* Mate-terminal 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, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <errno.h>
#include <locale.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
#include <glib.h>
#include <glib/gstdio.h>
#include <gio/gio.h>
#include <gdk/gdk.h>
#ifdef GDK_WINDOWING_X11
#include <gdk/gdkx.h>
#ifndef GDK_IS_X11_DISPLAY
#define GDK_IS_X11_DISPLAY(display) 1
#endif
#endif
#ifdef WITH_SMCLIENT
#include "eggsmclient.h"
#endif
#include "terminal-accels.h"
#include "terminal-app.h"
#include "terminal-debug.h"
#include "terminal-intl.h"
#include "terminal-options.h"
#include "terminal-util.h"
#define TERMINAL_FACTORY_SERVICE_NAME_PREFIX "org.mate.Terminal.Display"
#define TERMINAL_FACTORY_SERVICE_PATH "/org/mate/Terminal/Factory"
#define TERMINAL_FACTORY_INTERFACE_NAME "org.mate.Terminal.Factory"
static char *
ay_to_string (GVariant *variant,
GError **error)
{
gsize len;
const char *data;
data = g_variant_get_fixed_array (variant, &len, sizeof (char));
if (len == 0)
return NULL;
/* Make sure there are no embedded NULs */
if (memchr (data, '\0', len) != NULL)
{
g_set_error_literal (error, G_DBUS_ERROR, G_DBUS_ERROR_INVALID_ARGS,
"String is shorter than claimed");
return NULL;
}
return g_strndup (data, len);
}
static char **
ay_to_strv (GVariant *variant,
int *argc)
{
GPtrArray *argv;
const char *data, *nullbyte;
gsize data_len;
gssize len;
data = g_variant_get_fixed_array (variant, &data_len, sizeof (char));
if (data_len == 0 || data_len > G_MAXSSIZE)
{
if (argc != NULL)
*argc = 0;
return NULL;
}
argv = g_ptr_array_new ();
len = data_len;
do
{
gssize string_len;
nullbyte = memchr (data, '\0', len);
string_len = nullbyte ? (gssize) (nullbyte - data) : len;
g_ptr_array_add (argv, g_strndup (data, string_len));
len -= string_len + 1;
data += string_len + 1;
}
while (len > 0);
if (argc)
*argc = argv->len;
/* NULL terminate */
g_ptr_array_add (argv, NULL);
return (char **) g_ptr_array_free (argv, FALSE);
}
static GVariant *
string_to_ay (const char *string)
{
gsize len;
char *data;
len = strlen (string);
data = g_strndup (string, len);
return g_variant_new_from_data (G_VARIANT_TYPE ("ay"), data, len, TRUE, g_free, data);
}
typedef struct
{
char *factory_name;
TerminalOptions *options;
int exit_code;
char **argv;
int argc;
} OwnData;
static void
method_call_cb (GDBusConnection *connection,
const char *sender,
const char *object_path,
const char *interface_name,
const char *method_name,
GVariant *parameters,
GDBusMethodInvocation *invocation,
gpointer user_data)
{
if (g_strcmp0 (method_name, "HandleArguments") == 0)
{
TerminalOptions *options = NULL;
GVariant *v_wd, *v_display, *v_sid, *v_envv, *v_argv;
char *working_directory = NULL, *display_name = NULL, *startup_id = NULL;
int initial_workspace = -1;
char **envv = NULL, **argv = NULL;
int argc;
GError *error = NULL;
g_variant_get (parameters, "(@ay@ay@ay@ayi@ay)",
&v_wd, &v_display, &v_sid, &v_envv, &initial_workspace, &v_argv);
working_directory = ay_to_string (v_wd, &error);
if (error)
goto out;
display_name = ay_to_string (v_display, &error);
if (error)
goto out;
startup_id = ay_to_string (v_sid, &error);
if (error)
goto out;
envv = ay_to_strv (v_envv, NULL);
argv = ay_to_strv (v_argv, &argc);
_terminal_debug_print (TERMINAL_DEBUG_FACTORY,
"Factory invoked with working-dir='%s' display='%s' startup-id='%s'"
"workspace='%d'\n",
working_directory ? working_directory : "(null)",
display_name ? display_name : "(null)",
startup_id ? startup_id : "(null)",
initial_workspace);
options = terminal_options_parse (working_directory,
display_name,
startup_id,
envv,
TRUE,
TRUE,
&argc, &argv,
&error,
NULL);
options->initial_workspace = initial_workspace;
if (options != NULL)
{
terminal_app_handle_options (terminal_app_get (), options, FALSE /* no resume */, &error);
terminal_options_free (options);
}
out:
g_variant_unref (v_wd);
g_free (working_directory);
g_variant_unref (v_display);
g_free (display_name);
g_variant_unref (v_sid);
g_free (startup_id);
g_variant_unref (v_envv);
g_strfreev (envv);
g_variant_unref (v_argv);
g_strfreev (argv);
if (error == NULL)
{
g_dbus_method_invocation_return_value (invocation, g_variant_new ("()"));
}
else
{
g_dbus_method_invocation_return_gerror (invocation, error);
g_error_free (error);
}
}
}
static void
bus_acquired_cb (GDBusConnection *connection,
const char *name,
gpointer user_data)
{
static const char dbus_introspection_xml[] =
"<node name='/org/mate/Terminal'>"
"<interface name='org.mate.Terminal.Factory'>"
"<method name='HandleArguments'>"
"<arg type='ay' name='working_directory' direction='in' />"
"<arg type='ay' name='display_name' direction='in' />"
"<arg type='ay' name='startup_id' direction='in' />"
"<arg type='ay' name='environment' direction='in' />"
"<arg type='i' name='workspace' direction='in' />"
"<arg type='ay' name='arguments' direction='in' />"
"</method>"
"</interface>"
"</node>";
static const GDBusInterfaceVTable interface_vtable =
{
method_call_cb,
NULL,
NULL,
};
OwnData *data = (OwnData *) user_data;
GDBusNodeInfo *introspection_data;
guint registration_id;
GError *error = NULL;
_terminal_debug_print (TERMINAL_DEBUG_FACTORY,
"Bus %s acquired\n", name);
introspection_data = g_dbus_node_info_new_for_xml (dbus_introspection_xml, NULL);
g_assert (introspection_data != NULL);
registration_id = g_dbus_connection_register_object (connection,
TERMINAL_FACTORY_SERVICE_PATH,
introspection_data->interfaces[0],
&interface_vtable,
NULL, NULL,
&error);
g_dbus_node_info_unref (introspection_data);
if (registration_id == 0)
{
g_printerr ("Failed to register object: %s\n", error->message);
g_error_free (error);
data->exit_code = EXIT_FAILURE;
gtk_main_quit ();
}
}
static void
name_acquired_cb (GDBusConnection *connection,
const char *name,
gpointer user_data)
{
OwnData *data = (OwnData *) user_data;
GError *error = NULL;
_terminal_debug_print (TERMINAL_DEBUG_FACTORY,
"Acquired the name %s on the session bus\n", name);
if (data->options == NULL)
{
/* Name re-acquired!? */
g_assert_not_reached ();
}
if (!terminal_app_handle_options (terminal_app_get (), data->options, TRUE /* do resume */, &error))
{
g_printerr ("Failed to handle options: %s\n", error->message);
g_error_free (error);
data->exit_code = EXIT_FAILURE;
gtk_main_quit ();
}
terminal_options_free (data->options);
data->options = NULL;
}
static void
name_lost_cb (GDBusConnection *connection,
const char *name,
gpointer user_data)
{
OwnData *data = (OwnData *) user_data;
GError *error = NULL;
char **envv;
int envc, i;
GVariantBuilder builder;
GVariant *value;
GString *string;
char *s;
gsize len;
_terminal_debug_print (TERMINAL_DEBUG_FACTORY,
"Lost the name %s on the session bus\n", name);
/* Couldn't get the connection? No way to continue! */
if (connection == NULL)
{
data->exit_code = EXIT_FAILURE;
gtk_main_quit ();
return;
}
if (data->options == NULL)
{
/* Already handled */
data->exit_code = EXIT_SUCCESS;
gtk_main_quit ();
return;
}
_terminal_debug_print (TERMINAL_DEBUG_FACTORY,
"Forwarding arguments to existing instance\n");
g_variant_builder_init (&builder, G_VARIANT_TYPE ("(ayayayayiay)"));
g_variant_builder_add (&builder, "@ay", string_to_ay (data->options->default_working_dir));
g_variant_builder_add (&builder, "@ay", string_to_ay (data->options->display_name));
g_variant_builder_add (&builder, "@ay", string_to_ay (data->options->startup_id));
string = g_string_new (NULL);
envv = g_listenv ();
envc = g_strv_length (envv);
for (i = 0; i < envc; ++i)
{
const char *value;
value = g_getenv (envv[i]);
if (value == NULL)
continue;
if (i > 0)
g_string_append_c (string, '\0');
g_string_append_printf (string, "%s=%s", envv[i], value);
}
len = string->len;
s = g_string_free (string, FALSE);
g_variant_builder_add (&builder, "@ay",
g_variant_new_from_data (G_VARIANT_TYPE ("ay"), s, len, TRUE, g_free, s));
g_variant_builder_add (&builder, "@i", g_variant_new_int32 (data->options->initial_workspace));
string = g_string_new (NULL);
for (i = 0; i < data->argc; ++i)
{
if (i > 0)
g_string_append_c (string, '\0');
g_string_append (string, data->argv[i]);
}
len = string->len;
s = g_string_free (string, FALSE);
g_variant_builder_add (&builder, "@ay",
g_variant_new_from_data (G_VARIANT_TYPE ("ay"), s, len, TRUE, g_free, s));
value = g_dbus_connection_call_sync (connection,
data->factory_name,
TERMINAL_FACTORY_SERVICE_PATH,
TERMINAL_FACTORY_INTERFACE_NAME,
"HandleArguments",
g_variant_builder_end (&builder),
G_VARIANT_TYPE ("()"),
G_DBUS_CALL_FLAGS_NONE,
-1,
NULL,
&error);
if (value == NULL)
{
g_printerr ("Failed to forward arguments: %s\n", error->message);
g_error_free (error);
data->exit_code = EXIT_FAILURE;
gtk_main_quit ();
}
else
{
g_variant_unref (value);
data->exit_code = EXIT_SUCCESS;
}
terminal_options_free (data->options);
data->options = NULL;
gtk_main_quit ();
}
/* Settings storage works as follows:
* /apps/mate-terminal/global/
* /apps/mate-terminal/profiles/Foo/
*
* It's somewhat tricky to manage the profiles/ dir since we need to track
* the list of profiles, but GSettings doesn't have a concept of notifying that
* a directory has appeared or disappeared.
*
* Session state is stored entirely in the RestartCommand command line.
*
* The number one rule: all stored information is EITHER per-session,
* per-profile, or set from a command line option. THERE CAN BE NO
* OVERLAP. The UI and implementation totally break if you overlap
* these categories. See mate-terminal 1.x for why.
*
* Don't use this code as an example of how to use GSettings - it's hugely
* overcomplicated due to the profiles stuff. Most apps should not
* have to do scary things of this nature, and should not have
* a profiles feature.
*
*/
#ifdef GDK_WINDOWING_X11
/* Copied from libcaja/caja-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;
const char *name;
attrs.override_redirect = True;
attrs.event_mask = PropertyChangeMask | StructureNotifyMask;
xwindow =
XCreateWindow (xdisplay,
RootWindow (xdisplay, 0),
-100, -100, 1, 1,
0,
CopyFromParent,
CopyFromParent,
(Visual *)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;
}
#endif
static char *
get_factory_name_for_display (const char *display_name)
{
GString *name;
const char *p;
name = g_string_sized_new (strlen (TERMINAL_FACTORY_SERVICE_NAME_PREFIX) + strlen (display_name) + 1 /* NUL */);
g_string_append (name, TERMINAL_FACTORY_SERVICE_NAME_PREFIX);
for (p = display_name; *p; ++p)
{
if (g_ascii_isalnum (*p))
g_string_append_c (name, *p);
else
g_string_append_c (name, '_');
}
_terminal_debug_print (TERMINAL_DEBUG_FACTORY,
"Factory name is \"%s\"\n", name->str);
return g_string_free (name, FALSE);
}
static int
get_initial_workspace (void)
{
int ret = -1;
GdkWindow *window;
guchar *data = NULL;
GdkAtom atom;
GdkAtom cardinal_atom;
window = gdk_get_default_root_window();
atom = gdk_atom_intern_static_string ("_NET_CURRENT_DESKTOP");
cardinal_atom = gdk_atom_intern_static_string ("CARDINAL");
gdk_property_get (window, atom, cardinal_atom, 0, 8, FALSE, NULL, NULL, NULL, &data);
ret = *(int *)data;
g_free (data);
return ret;
}
int
main (int argc, char **argv)
{
int i;
char **argv_copy;
int argc_copy;
const char *startup_id, *display_name, *home_dir;
GdkDisplay *display;
TerminalOptions *options;
GError *error = NULL;
char *working_directory;
int ret = EXIT_SUCCESS;
setlocale (LC_ALL, "");
bindtextdomain (GETTEXT_PACKAGE, TERM_LOCALEDIR);
bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
textdomain (GETTEXT_PACKAGE);
_terminal_debug_init ();
/* Make a NULL-terminated copy since we may need it later */
argv_copy = g_new (char *, argc + 1);
for (i = 0; i < argc; ++i)
argv_copy [i] = argv [i];
argv_copy [i] = NULL;
argc_copy = argc;
startup_id = g_getenv ("DESKTOP_STARTUP_ID");
working_directory = g_get_current_dir ();
/* Now change directory to $HOME so we don't prevent unmounting, e.g. if the
* factory is started by caja-open-terminal. See bug #565328.
* On failure back to /.
*/
home_dir = g_get_home_dir ();
if (home_dir == NULL || chdir (home_dir) < 0)
(void) chdir ("/");
options = terminal_options_parse (working_directory,
NULL,
startup_id,
NULL,
FALSE,
FALSE,
&argc, &argv,
&error,
gtk_get_option_group (TRUE),
#ifdef WITH_SMCLIENT
egg_sm_client_get_option_group (),
#endif
NULL);
g_free (working_directory);
if (options == NULL)
{
g_printerr (_("Failed to parse arguments: %s\n"), error->message);
g_error_free (error);
exit (EXIT_FAILURE);
}
g_set_application_name (_("Terminal"));
/* Unset the these env variables, so they doesn't end up
* in the factory's env and thus in the terminals' envs.
*/
g_unsetenv ("DESKTOP_STARTUP_ID");
g_unsetenv ("GIO_LAUNCHED_DESKTOP_FILE_PID");
g_unsetenv ("GIO_LAUNCHED_DESKTOP_FILE");
display = gdk_display_get_default ();
display_name = gdk_display_get_name (display);
options->display_name = g_strdup (display_name);
#ifdef GDK_WINDOWING_X11
if (GDK_IS_X11_DISPLAY(display) && options->startup_id == NULL)
{
/* Create a fake one containing a timestamp that we can use */
Time timestamp;
timestamp = slowly_and_stupidly_obtain_timestamp (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()));
options->startup_id = g_strdup_printf ("_TIME%lu", timestamp);
}
#endif
if (options->use_factory)
{
OwnData *data;
guint owner_id;
data = g_new (OwnData, 1);
data->factory_name = get_factory_name_for_display (display_name);
data->options = options;
data->exit_code = -1;
data->argv = argv_copy;
data->argc = argc_copy;
gtk_init(&argc, &argv);
options->initial_workspace = get_initial_workspace ();
owner_id = g_bus_own_name (G_BUS_TYPE_SESSION,
data->factory_name,
G_BUS_NAME_OWNER_FLAGS_NONE,
bus_acquired_cb,
name_acquired_cb,
name_lost_cb,
data, NULL);
gtk_main ();
ret = data->exit_code;
g_bus_unown_name (owner_id);
g_free (data->factory_name);
g_free (data);
}
else
{
terminal_app_handle_options (terminal_app_get (), options, TRUE /* allow resume */, &error);
terminal_options_free (options);
if (error == NULL)
{
gtk_main ();
}
else
{
g_printerr ("Error handling options: %s\n", error->message);
g_error_free (error);
ret = EXIT_FAILURE;
}
}
terminal_app_shutdown ();
g_free (argv_copy);
return ret;
}
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