Claim DBus names (Shell, Notifictions) *very* early

See commit f2158218bef0c51 in mutter.  Basically, we need
to grab org.freedesktop.Notifications before anything else
in the session gets started.

Note: I intentionally removed the Util.killall bits.  I believe that
for notification-daemon at least, if we specify
DBUS_NAME_FLAG_REPLACE_EXISTING, we'll take over the name.  Not sure
about notify-osd; if that's still a problem, then what we need to do
is add killing (and possibly respawning) of notify-osd to
"gnome-shell --replace", and not have it embedded randomly in a JS file.

https://bugzilla.gnome.org/show_bug.cgi?id=642666
This commit is contained in:
Colin Walters 2011-02-25 14:41:39 -05:00
parent 0d2eb76cee
commit 474ff2e997
5 changed files with 83 additions and 94 deletions

View File

@ -88,7 +88,6 @@ function start() {
Gio.DesktopAppInfo.set_desktop_env('GNOME');
global.grab_dbus_service();
shellDBusService = new ShellDBus.GnomeShell();
// Force a connection now; dbus.js will do this internally
// if we use its name acquisition stuff but we aren't right

View File

@ -93,16 +93,6 @@ NotificationDaemon.prototype = {
_init: function() {
DBus.session.exportObject('/org/freedesktop/Notifications', this);
this._everAcquiredName = false;
DBus.session.acquire_name('org.freedesktop.Notifications',
// We pass MANY_INSTANCES so that if
// notification-daemon is running, we'll
// get queued behind it and then get the
// name after killing it below
DBus.MANY_INSTANCES,
Lang.bind(this, this._acquiredName),
Lang.bind(this, this._lostName));
this._sources = {};
this._senderToPid = {};
this._notifications = {};
@ -117,22 +107,6 @@ NotificationDaemon.prototype = {
Lang.bind(this, this._onFocusAppChanged));
},
_acquiredName: function() {
this._everAcquiredName = true;
},
_lostName: function() {
if (this._everAcquiredName)
log('Lost name org.freedesktop.Notifications!');
else if (GLib.getenv('GNOME_SHELL_NO_REPLACE'))
log('Failed to acquire org.freedesktop.Notifications');
else {
log('Failed to acquire org.freedesktop.Notifications; trying again');
Util.killall('notification-daemon');
Util.killall('notify-osd');
}
},
_iconForNotificationData: function(icon, hints, size) {
let textureCache = St.TextureCache.get_default();

View File

@ -54,9 +54,13 @@
#include "st.h"
#include "shell-a11y.h"
#define SHELL_DBUS_SERVICE "org.gnome.Shell"
#define MAGNIFIER_DBUS_SERVICE "org.gnome.Magnifier"
static void gnome_shell_plugin_dispose (GObject *object);
static void gnome_shell_plugin_finalize (GObject *object);
static void gnome_shell_plugin_early_initialize (MetaPlugin *plugin);
static void gnome_shell_plugin_start (MetaPlugin *plugin);
static void gnome_shell_plugin_minimize (MetaPlugin *plugin,
MetaWindowActor *actor);
@ -138,6 +142,7 @@ gnome_shell_plugin_class_init (GnomeShellPluginClass *klass)
gobject_class->dispose = gnome_shell_plugin_dispose;
gobject_class->finalize = gnome_shell_plugin_finalize;
plugin_class->early_initialize = gnome_shell_plugin_early_initialize;
plugin_class->start = gnome_shell_plugin_start;
plugin_class->map = gnome_shell_plugin_map;
plugin_class->minimize = gnome_shell_plugin_minimize;
@ -403,6 +408,84 @@ muted_log_handler (const char *log_domain,
/* Intentionally empty to discard message */
}
static void
gnome_shell_plugin_early_initialize (MetaPlugin *plugin)
{
GError *error = NULL;
DBusGConnection *session;
DBusGProxy *bus;
guint32 request_name_result;
/** TODO:
* In the future we should use GDBus for this. However, in
* order to do that, we need to port all of the JavaScript
* code. Otherwise, the name will be claimed on the wrong
* connection.
*/
session = dbus_g_bus_get (DBUS_BUS_SESSION, NULL);
bus = dbus_g_proxy_new_for_name (session,
DBUS_SERVICE_DBUS,
DBUS_PATH_DBUS,
DBUS_INTERFACE_DBUS);
if (!dbus_g_proxy_call (bus, "RequestName", &error,
G_TYPE_STRING, SHELL_DBUS_SERVICE,
G_TYPE_UINT, 0,
G_TYPE_INVALID,
G_TYPE_UINT, &request_name_result,
G_TYPE_INVALID))
{
g_print ("failed to acquire org.gnome.Shell: %s\n", error->message);
/* If we somehow got started again, it's not an error to be running
* already. So just exit 0.
*/
exit (0);
}
/* Also grab org.gnome.Panel to replace any existing panel process,
* unless a special environment variable is passed. The environment
* variable is used by the gnome-shell (no --replace) launcher in
* Xephyr */
if (!dbus_g_proxy_call (bus, "RequestName", &error, G_TYPE_STRING,
"org.gnome.Panel", G_TYPE_UINT,
DBUS_NAME_FLAG_REPLACE_EXISTING | DBUS_NAME_FLAG_DO_NOT_QUEUE,
G_TYPE_INVALID, G_TYPE_UINT,
&request_name_result, G_TYPE_INVALID))
{
g_print ("failed to acquire org.gnome.Panel: %s\n", error->message);
exit (1);
}
/* ...and the org.gnome.Magnifier service.
*/
if (!dbus_g_proxy_call (bus, "RequestName", &error,
G_TYPE_STRING, MAGNIFIER_DBUS_SERVICE,
G_TYPE_UINT, 0,
G_TYPE_INVALID,
G_TYPE_UINT, &request_name_result,
G_TYPE_INVALID))
{
g_print ("failed to acquire %s: %s\n", MAGNIFIER_DBUS_SERVICE, error->message);
/* Failing to acquire the magnifer service is not fatal. Log the error,
* but keep going. */
}
/* ...and the org.freedesktop.Notifications service.
*/
if (!dbus_g_proxy_call (bus, "RequestName", &error,
G_TYPE_STRING, "org.freedesktop.Notifications",
G_TYPE_UINT, DBUS_NAME_FLAG_REPLACE_EXISTING | DBUS_NAME_FLAG_DO_NOT_QUEUE,
G_TYPE_INVALID,
G_TYPE_UINT, &request_name_result,
G_TYPE_INVALID))
{
g_print ("failed to acquire org.freedesktop.Notifications: %s\n", error->message);
}
g_object_unref (bus);
}
static void
gnome_shell_plugin_start (MetaPlugin *plugin)
{

View File

@ -35,9 +35,6 @@
#endif
#include "shell-jsapi-compat-private.h"
#define SHELL_DBUS_SERVICE "org.gnome.Shell"
#define MAGNIFIER_DBUS_SERVICE "org.gnome.Magnifier"
static void grab_notify (GtkWidget *widget, gboolean is_grab, gpointer user_data);
struct _ShellGlobal {
@ -1231,68 +1228,6 @@ shell_global_maybe_gc (ShellGlobal *global)
gjs_context_maybe_gc (global->js_context);
}
void
shell_global_grab_dbus_service (ShellGlobal *global)
{
GError *error = NULL;
DBusGConnection *session;
DBusGProxy *bus;
guint32 request_name_result;
session = dbus_g_bus_get (DBUS_BUS_SESSION, NULL);
bus = dbus_g_proxy_new_for_name (session,
DBUS_SERVICE_DBUS,
DBUS_PATH_DBUS,
DBUS_INTERFACE_DBUS);
if (!dbus_g_proxy_call (bus, "RequestName", &error,
G_TYPE_STRING, SHELL_DBUS_SERVICE,
G_TYPE_UINT, 0,
G_TYPE_INVALID,
G_TYPE_UINT, &request_name_result,
G_TYPE_INVALID))
{
g_print ("failed to acquire org.gnome.Shell: %s\n", error->message);
/* If we somehow got started again, it's not an error to be running
* already. So just exit 0.
*/
exit (0);
}
/* Also grab org.gnome.Panel to replace any existing panel process,
* unless a special environment variable is passed. The environment
* variable is used by the gnome-shell (no --replace) launcher in
* Xephyr */
if (!g_getenv ("GNOME_SHELL_NO_REPLACE"))
{
if (!dbus_g_proxy_call (bus, "RequestName", &error, G_TYPE_STRING,
"org.gnome.Panel", G_TYPE_UINT,
DBUS_NAME_FLAG_REPLACE_EXISTING | DBUS_NAME_FLAG_DO_NOT_QUEUE,
G_TYPE_INVALID, G_TYPE_UINT,
&request_name_result, G_TYPE_INVALID))
{
g_print ("failed to acquire org.gnome.Panel: %s\n", error->message);
exit (1);
}
}
/* ...and the org.gnome.Magnifier service.
*/
if (!dbus_g_proxy_call (bus, "RequestName", &error,
G_TYPE_STRING, MAGNIFIER_DBUS_SERVICE,
G_TYPE_UINT, 0,
G_TYPE_INVALID,
G_TYPE_UINT, &request_name_result,
G_TYPE_INVALID))
{
g_print ("failed to acquire %s: %s\n", MAGNIFIER_DBUS_SERVICE, error->message);
/* Failing to acquire the magnifer service is not fatal. Log the error,
* but keep going. */
}
g_object_unref (bus);
}
static void
grab_notify (GtkWidget *widget, gboolean was_grabbed, gpointer user_data)
{

View File

@ -59,8 +59,6 @@ gboolean shell_global_add_extension_importer (ShellGlobal *global,
const char *directory,
GError **error);
void shell_global_grab_dbus_service (ShellGlobal *global);
typedef enum {
SHELL_STAGE_INPUT_MODE_NONREACTIVE,
SHELL_STAGE_INPUT_MODE_NORMAL,