#define _GNU_SOURCE
#include "config.h"
-#include <X11/Xlib.h>
-#include <X11/Xatom.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <atk/atk.h>
#include <droute/droute.h>
-#include <gmodule.h>
-#include <glib/gi18n.h>
#include <atspi/atspi.h>
+#include <atk-bridge.h>
#include "bridge.h"
#include "event.h"
SpiBridge *spi_global_app_data = NULL;
-/*static Display *bridge_display = NULL;*/
-
-/*---------------------------------------------------------------------------*/
-
-/*
- * Returns a 'canonicalized' value for DISPLAY,
- * with the screen number stripped off if present.
- *
- */
-static const gchar *
-spi_display_name (void)
-{
- static const char *canonical_display_name = NULL;
- if (!canonical_display_name)
- {
- const gchar *display_env = g_getenv ("AT_SPI_DISPLAY");
- if (!display_env)
- {
- display_env = g_getenv ("DISPLAY");
- if (!display_env || !display_env[0])
- canonical_display_name = ":0";
- else
- {
- gchar *display_p, *screen_p;
- canonical_display_name = g_strdup (display_env);
- display_p = strrchr (canonical_display_name, ':');
- screen_p = strrchr (canonical_display_name, '.');
- if (screen_p && display_p && (screen_p > display_p))
- {
- *screen_p = '\0';
- }
- }
- }
- else
- {
- canonical_display_name = display_env;
- }
- }
- return canonical_display_name;
-}
-
-/*---------------------------------------------------------------------------*/
-
-static void
-set_reply (DBusPendingCall *pending, void *user_data)
-{
- void **replyptr = (void **)user_data;
-
- *replyptr = dbus_pending_call_steal_reply (pending);
- dbus_pending_call_unref (pending);
-}
+static gboolean inited = FALSE;
/*---------------------------------------------------------------------------*/
{
event_data *evdata;
gchar **data;
- GList *new_list;
spi_atk_add_client (bus_name);
evdata = (event_data *) g_malloc (sizeof (*evdata));
}
evdata->bus_name = g_strdup (bus_name);
evdata->data = data;
- new_list = g_list_append (spi_global_app_data->events, evdata);
- if (new_list)
- spi_global_app_data->events = new_list;
+ spi_global_app_data->events = g_list_append (spi_global_app_data->events, evdata);
}
static GSList *clients = NULL;
static void
-get_registered_event_listeners (SpiBridge *app)
+tally_event_reply ()
{
- DBusMessage *message, *reply;
- DBusMessageIter iter, iter_array, iter_struct;
+ static int replies_received = 0;
- message = dbus_message_new_method_call (SPI_DBUS_NAME_REGISTRY,
- ATSPI_DBUS_PATH_REGISTRY,
- ATSPI_DBUS_INTERFACE_REGISTRY,
- "GetRegisteredEvents");
- if (!message)
- return;
+ replies_received++;
+ if (replies_received == 3)
+ {
+ if (!clients)
+ spi_atk_deregister_event_listeners ();
+ spi_global_app_data->events_initialized = TRUE;
+ }
+}
+
+static void
+get_events_reply (DBusPendingCall *pending, void *user_data)
+{
+ DBusMessage *reply = dbus_pending_call_steal_reply (pending);
+ DBusMessageIter iter, iter_array, iter_struct;
- reply = dbus_connection_send_with_reply_and_block (app->bus, message, 5000, NULL);
- dbus_message_unref (message);
if (!reply)
- {
- spi_global_app_data->events_initialized = TRUE;
- return;
- }
+ goto done;
+
if (strcmp (dbus_message_get_signature (reply), "a(ss)") != 0)
{
g_warning ("atk-bridge: GetRegisteredEvents returned message with unknown signature");
- dbus_message_unref (reply);
- spi_global_app_data->events_initialized = TRUE;
- return;
+ goto done;
}
+
dbus_message_iter_init (reply, &iter);
dbus_message_iter_recurse (&iter, &iter_array);
while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
add_event (bus_name, event);
dbus_message_iter_next (&iter_array);
}
- dbus_message_unref (reply);
- if (!clients)
- spi_atk_deregister_event_listeners ();
- spi_global_app_data->events_initialized = TRUE;
+done:
+ if (reply)
+ dbus_message_unref (reply);
+ if (pending)
+ dbus_pending_call_unref (pending);
+
+ tally_event_reply ();
+}
+
+static void
+get_device_events_reply (DBusPendingCall *pending, void *user_data)
+{
+ DBusMessage *reply = dbus_pending_call_steal_reply (pending);
+ DBusMessageIter iter, iter_array, iter_struct;
+
+ if (!reply)
+ goto done;
+
+ if (strncmp (dbus_message_get_signature (reply), "a(s", 3) != 0)
+ {
+ g_warning ("atk-bridge: get_device_events_reply: unknown signature");
+ goto done;
+ }
+
+ dbus_message_iter_init (reply, &iter);
+ dbus_message_iter_recurse (&iter, &iter_array);
+ while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
+ {
+ char *bus_name;
+ dbus_message_iter_recurse (&iter_array, &iter_struct);
+ dbus_message_iter_get_basic (&iter_struct, &bus_name);
+ spi_atk_add_client (bus_name);
+ dbus_message_iter_next (&iter_array);
+ }
+
+done:
+ if (reply)
+ dbus_message_unref (reply);
+ if (pending)
+ dbus_pending_call_unref (pending);
+
+ tally_event_reply ();
+}
+
+static void
+get_registered_event_listeners (SpiBridge *app)
+{
+ DBusMessage *message;
+ DBusPendingCall *pending = NULL;
+
+ message = dbus_message_new_method_call (SPI_DBUS_NAME_REGISTRY,
+ ATSPI_DBUS_PATH_REGISTRY,
+ ATSPI_DBUS_INTERFACE_REGISTRY,
+ "GetRegisteredEvents");
+ if (!message)
+ return;
+
+ dbus_connection_send_with_reply (app->bus, message, &pending, -1);
+ dbus_message_unref (message);
+ if (!pending)
+ {
+ spi_global_app_data->events_initialized = TRUE;
+ return;
+ }
+ dbus_pending_call_set_notify (pending, get_events_reply, NULL, NULL);
+
+ message = dbus_message_new_method_call (SPI_DBUS_NAME_REGISTRY,
+ ATSPI_DBUS_PATH_DEC,
+ ATSPI_DBUS_INTERFACE_DEC,
+ "GetKeystrokeListeners");
+ if (!message)
+ return;
+ pending = NULL;
+ dbus_connection_send_with_reply (app->bus, message, &pending, -1);
+ dbus_message_unref (message);
+ if (!pending)
+ {
+ spi_global_app_data->events_initialized = TRUE;
+ return;
+ }
+ dbus_pending_call_set_notify (pending, get_device_events_reply, NULL, NULL);
+
+ message = dbus_message_new_method_call (SPI_DBUS_NAME_REGISTRY,
+ ATSPI_DBUS_PATH_DEC,
+ ATSPI_DBUS_INTERFACE_DEC,
+ "GetDeviceEventListeners");
+ if (!message)
+ return;
+ pending = NULL;
+ dbus_connection_send_with_reply (app->bus, message, &pending, -1);
+ dbus_message_unref (message);
+ if (!pending)
+ {
+ spi_global_app_data->events_initialized = TRUE;
+ return;
+ }
+ dbus_pending_call_set_notify (pending, get_device_events_reply, NULL, NULL);
}
static void
{
DBusMessage *reply;
SpiBridge *app = user_data;
- DBusMessage *message;
reply = dbus_pending_call_steal_reply (pending);
dbus_pending_call_unref (pending);
static gboolean
register_application (SpiBridge * app)
{
- DBusMessage *message, *reply;
+ DBusMessage *message;
DBusMessageIter iter;
DBusError error;
DBusPendingCall *pending;
- const int max_addr_length = 128; /* should be long enough */
dbus_error_init (&error);
if (message)
dbus_message_unref (message);
- /* could this be better, we accept some amount of race in getting the temp name*/
- /* make sure the directory exists */
- mkdir ("/tmp/at-spi2/", S_IRWXU|S_IRWXG|S_IRWXO|S_ISVTX);
- chmod ("/tmp/at-spi2/", S_IRWXU|S_IRWXG|S_IRWXO|S_ISVTX);
- app->app_bus_addr = g_malloc(max_addr_length * sizeof(char));
#ifndef DISABLE_P2P
- sprintf (app->app_bus_addr, "unix:path=/tmp/at-spi2/socket-%d-%d", getpid(),
- rand());
-#else
- app->app_bus_addr [0] = '\0';
+ if (getuid () != 0)
+ {
+ app->app_tmp_dir = g_build_filename (g_get_user_runtime_dir (),
+ "at-spi2-XXXXXX", NULL);
+ if (!g_mkdtemp (app->app_tmp_dir))
+ {
+ g_free (app->app_tmp_dir);
+ app->app_tmp_dir = NULL;
+ return FALSE;
+ }
+ }
+
+ if (app->app_tmp_dir)
+ app->app_bus_addr = g_strdup_printf ("unix:path=%s/socket", app->app_tmp_dir);
+ else
+ app->app_bus_addr = g_strdup_printf ("unix:path=%s/at-spi2-socket-%d",
+ g_get_user_runtime_dir (), getpid ());
#endif
return TRUE;
dbus_connection_send (app->bus, message, NULL);
if (message)
dbus_message_unref (message);
+
+ if (app->app_bus_addr)
+ {
+ unlink (app->app_bus_addr);
+ g_free (app->app_bus_addr);
+ app->app_bus_addr = NULL;
+ }
+
+ if (app->app_tmp_dir)
+ {
+ rmdir (app->app_tmp_dir);
+ g_free (app->app_tmp_dir);
+ app->app_tmp_dir = NULL;
+ }
}
/*---------------------------------------------------------------------------*/
socket_class->embed = socket_embed_hook;
}
-static uint
-get_ancestral_uid (uint pid)
+static guint
+get_ancestral_uid (guint pid)
{
FILE *fp;
char buf [80];
}
static dbus_bool_t
-user_check (DBusConnection *bus, unsigned long uid)
+user_check (DBusConnection *bus, unsigned long uid, void *data)
{
if (uid == getuid () || uid == geteuid ())
return TRUE;
static void
new_connection_cb (DBusServer *server, DBusConnection *con, void *data)
{
- GList *new_list;
-
dbus_connection_set_unix_user_function (con, user_check, NULL, NULL);
dbus_connection_ref(con);
atspi_dbus_connection_setup_with_g_main(con, NULL);
DBusServer *server;
DBusError err;
+ if (!spi_global_app_data->app_bus_addr)
+ return -1;
+
dbus_error_init(&err);
server = dbus_server_listen(spi_global_app_data->app_bus_addr, &err);
if (server == NULL)
{
- g_warning (_("atk-bridge: Couldn't listen on dbus server: %s"), err.message);
+ g_warning ("atk-bridge: Couldn't listen on dbus server: %s", err.message);
dbus_error_init (&err);
spi_global_app_data->app_bus_addr [0] = '\0';
g_main_context_unref (spi_global_app_data->main_context);
static void
remove_events (const char *bus_name, const char *event)
{
- event_data *evdata;
gchar **remove_data;
GList *list;
handle_event_listener_deregistered (DBusConnection *bus, DBusMessage *message,
void *user_data)
{
- const char *orig_name;
gchar *name;
char *sender;
remove_events (sender, name);
}
+static void
+handle_device_listener_registered (DBusConnection *bus, DBusMessage *message,
+ void *user_data)
+{
+ char *sender;
+ DBusMessageIter iter, iter_struct;
+
+ if (strncmp (dbus_message_get_signature (message), "(s", 2) != 0)
+ {
+ g_warning ("atk-bridge: handle_device_listener_register: unknown signature");
+ return;
+ }
+
+ dbus_message_iter_init (message, &iter);
+ dbus_message_iter_recurse (&iter, &iter_struct);
+ dbus_message_iter_get_basic (&iter_struct, &sender);
+ spi_atk_add_client (sender);
+}
+
static DBusHandlerResult
signal_filter (DBusConnection *bus, DBusMessage *message, void *user_data)
{
else
result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
+ else if (!strcmp (interface, ATSPI_DBUS_INTERFACE_DEVICE_EVENT_LISTENER))
+ {
+ result = DBUS_HANDLER_RESULT_HANDLED;
+ if (!strcmp (member, "KeystrokeListenerRegistered"))
+ handle_device_listener_registered (bus, message, user_data);
+ else if (!strcmp (member, "DeviceListenerRegistered"))
+ handle_device_listener_registered (bus, message, user_data);
+ else
+ result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+ }
if (!g_strcmp0(interface, DBUS_INTERFACE_DBUS) &&
!g_strcmp0(member, "NameOwnerChanged"))
}
/*
+ * Checks the status of the environment variables
+ *
+ * At this moment it only checks NO_AT_BRIDGE
+ *
+ * Returns TRUE if there isn't anything on the environment preventing
+ * you to load the bridge, FALSE otherwise
+ */
+static gboolean
+check_envvar (void)
+{
+ const gchar *envvar;
+
+ envvar = g_getenv ("NO_AT_BRIDGE");
+
+ if (envvar && atoi (envvar) == 1)
+ return FALSE;
+ else
+ return TRUE;
+}
+
+/*
* spi_app_init
*
* The following needs to be initialized.
* - Application registration with the AT-SPI registry.
*
*/
-static int
-adaptor_init (gint * argc, gchar ** argv[])
+int
+atk_bridge_adaptor_init (gint * argc, gchar ** argv[])
{
GOptionContext *opt;
GError *err = NULL;
DBusError error;
AtkObject *root;
- gchar *introspection_directory;
- static gboolean inited = FALSE;
+ gboolean load_bridge;
+ DRoutePath *treepath, *accpath;
+
+ load_bridge = check_envvar ();
+ if (inited && !load_bridge)
+ g_warning ("ATK Bridge is disabled but a11y has already been enabled.");
- if (inited)
+ if (inited || !load_bridge)
return 0;
inited = TRUE;
- DRoutePath *treepath, *accpath;
-
root = atk_get_root ();
g_warn_if_fail (root);
if (!root)
spi_global_app_data->bus);
/* Register methods to send D-Bus signals on certain ATK events */
- spi_atk_register_event_listeners ();
+ if (clients)
+ spi_atk_register_event_listeners ();
/* Set up filter and match rules to catch signals */
dbus_bus_add_match (spi_global_app_data->bus, "type='signal', interface='org.a11y.atspi.Registry', sender='org.a11y.atspi.Registry'", NULL);
+ dbus_bus_add_match (spi_global_app_data->bus, "type='signal', interface='org.a11y.atspi.DeviceEventListener', sender='org.a11y.atspi.Registry'", NULL);
dbus_connection_add_filter (spi_global_app_data->bus, signal_filter, NULL,
NULL);
return 0;
}
-/*---------------------------------------------------------------------------*/
-
-int
-gtk_module_init (gint * argc, gchar ** argv[])
-{
- const gchar *load_bridge = g_getenv ("NO_AT_BRIDGE");
-
- if (!load_bridge || g_ascii_strtod (load_bridge, NULL) == 0)
- {
- return adaptor_init (argc, argv);
- }
- return 0;
-}
-
-gchar*
-g_module_check_init (GModule *module)
-{
- g_module_make_resident (module);
-
- return NULL;
-}
-
void
-gnome_accessibility_module_init (void)
-{
- const gchar *load_bridge = g_getenv ("NO_AT_BRIDGE");
-
- if (!load_bridge || g_ascii_strtod (load_bridge, NULL) == 0)
- {
- adaptor_init (NULL, NULL);
-
- if (g_getenv ("AT_SPI_DEBUG"))
- {
- g_print ("Atk Accessibility bridge initialized\n");
- }
- }
-}
-
-void
-gnome_accessibility_module_shutdown (void)
+atk_bridge_adaptor_cleanup (void)
{
GList *l;
+ GSList *ls;
+
+ g_return_if_fail (inited);
if (!spi_global_app_data)
return;
for (l = spi_global_app_data->direct_connections; l; l = l->next)
{
- droute_context_unregister (spi_global_app_data->droute, l->data);
- droute_unintercept_dbus (l->data);
- dbus_connection_unref (l);
+ DBusConnection *connection;
+
+ connection = l->data;
+
+ droute_context_unregister (spi_global_app_data->droute, connection);
+ droute_unintercept_dbus (connection);
+ dbus_connection_unref (connection);
}
g_list_free (spi_global_app_data->direct_connections);
- for (l = clients; l; l = l->next)
- g_free (l->data);
- g_list_free (clients);
+ for (ls = clients; ls; ls = ls->next)
+ g_free (l->data);
+ g_slist_free (clients);
clients = NULL;
g_object_unref (spi_global_cache);
g_free (spi_global_app_data);
spi_global_app_data = NULL;
- /* Not currently creating an XDisplay */
-#if 0
- if (bridge_display)
- XCloseDisplay (bridge_display);
-#endif
+ inited = FALSE;
}
+/*---------------------------------------------------------------------------*/
+
static gchar *name_match_tmpl =
"type='signal', interface='org.freedesktop.DBus', member='NameOwnerChanged', arg0='%s'";
if (!g_strcmp0 (l->data, bus_name))
return;
}
- if (!clients && spi_global_app_data->events_initialized)
+ if (!clients)
spi_atk_register_event_listeners ();
clients = g_slist_append (clients, g_strdup (bus_name));
match = g_strdup_printf (name_match_tmpl, bus_name);
spi_atk_remove_client (const char *bus_name)
{
GSList *l;
+ GSList *next_node;
- for (l = clients; l; l = l->next)
+ l = clients;
+ while (l)
{
+ next_node = l->next;
+
if (!g_strcmp0 (l->data, bus_name))
{
gchar *match = g_strdup_printf (name_match_tmpl, l->data);
dbus_bus_remove_match (spi_global_app_data->bus, match, NULL);
g_free (match);
g_free (l->data);
- clients = g_slist_remove_link (clients, l);
+ clients = g_slist_delete_link (clients, l);
if (!clients)
spi_atk_deregister_event_listeners ();
}
+
+ l = next_node;
}
}