X-Git-Url: http://review.tizen.org/git/?p=platform%2Fcore%2Fuifw%2Fat-spi2-atk.git;a=blobdiff_plain;f=atk-adaptor%2Fbridge.c;h=97a5f1d6974d53eb67f1c7f9d66d59d14265254d;hp=4248e1cbbcfd8a9a781250e116db0ad441859f6f;hb=4ec12f8224307742cb9b466d7065d0baea1dd9e1;hpb=42b6147f8cc2e0e097a76bf6d2671df8f4e78ada diff --git a/atk-adaptor/bridge.c b/atk-adaptor/bridge.c index 4248e1c..97a5f1d 100644 --- a/atk-adaptor/bridge.c +++ b/atk-adaptor/bridge.c @@ -22,8 +22,8 @@ * Boston, MA 02111-1307, USA. */ +#define _GNU_SOURCE #include "config.h" -#include "dbus/dbus-glib-lowlevel.h" #include #include @@ -37,26 +37,26 @@ #include #include -#include +#include #include "bridge.h" #include "event.h" #include "adaptors.h" #include "object.h" +#include "accessible-stateset.h" #include "accessible-register.h" #include "accessible-leasing.h" #include "accessible-cache.h" -#include "common/spi-dbus.h" +#include "spi-dbus.h" /*---------------------------------------------------------------------------*/ -SpiBridge *spi_global_app_data = NULL; - -static const AtkMisc *atk_misc = NULL; +static DBusHandlerResult +signal_filter (DBusConnection *bus, DBusMessage *message, void *user_data); -/*static Display *bridge_display = NULL;*/ +SpiBridge *spi_global_app_data = NULL; /*---------------------------------------------------------------------------*/ @@ -99,77 +99,6 @@ spi_display_name (void) /*---------------------------------------------------------------------------*/ -/* - * Gets the IOR from the XDisplay. - * Not currently used in D-Bus version, but something similar - * may be employed in the future for accessing the registry daemon - * bus name. - */ - -static DBusConnection * -spi_atk_bridge_get_bus (void) -{ - Atom AT_SPI_BUS; - Atom actual_type; - Display *bridge_display; - int actual_format; - unsigned char *data = NULL; - unsigned long nitems; - unsigned long leftover; - - DBusConnection *bus = NULL; - DBusError error; - - bridge_display = XOpenDisplay (spi_display_name ()); - if (!bridge_display) - { - g_warning ("AT_SPI: Could not get the display\n"); - return NULL; - } - - AT_SPI_BUS = XInternAtom (bridge_display, "AT_SPI_BUS", False); - XGetWindowProperty (bridge_display, - XDefaultRootWindow (bridge_display), - AT_SPI_BUS, 0L, - (long) BUFSIZ, False, - (Atom) 31, &actual_type, &actual_format, - &nitems, &leftover, &data); - - dbus_error_init (&error); - - if (data == NULL) - { - g_warning - ("AT-SPI: Accessibility bus not found - Using session bus.\n"); - bus = dbus_bus_get (DBUS_BUS_SESSION, &error); - if (!bus) - { - g_warning ("AT-SPI: Couldn't connect to bus: %s\n", error.message); - return NULL; - } - } - else - { - bus = dbus_connection_open (data, &error); - XFree (data); - if (!bus) - { - g_warning ("AT-SPI: Couldn't connect to bus: %s\n", error.message); - return NULL; - } - else - { - if (!dbus_bus_register (bus, &error)) - { - g_warning ("AT-SPI: Couldn't register with bus: %s\n", error.message); - return NULL; - } - } - } - - return bus; -} - static void set_reply (DBusPendingCall *pending, void *user_data) { @@ -188,6 +117,7 @@ add_event (const char *bus_name, const char *event) gchar **data; GList *new_list; + spi_atk_add_client (bus_name); evdata = (event_data *) g_malloc (sizeof (*evdata)); if (!evdata) return; @@ -204,30 +134,37 @@ add_event (const char *bus_name, const char *event) spi_global_app_data->events = new_list; } +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, - SPI_DBUS_PATH_REGISTRY, - SPI_DBUS_INTERFACE_REGISTRY, - "GetRegisteredEvents"); - spi_global_app_data->events_initialized = TRUE; - 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) - return; + goto done; + if (strcmp (dbus_message_get_signature (reply), "a(ss)") != 0) { - /* TODO: Add a warning when it's okay to add strings */ - dbus_message_unref (reply); - return; + g_warning ("atk-bridge: GetRegisteredEvents returned message with 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) @@ -240,7 +177,104 @@ get_registered_event_listeners (SpiBridge *app) add_event (bus_name, event); dbus_message_iter_next (&iter_array); } - dbus_message_unref (reply); + +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 @@ -296,12 +330,12 @@ register_application (SpiBridge * app) /* These will be overridden when we get a reply, but in practice these defaults should always be correct */ - app->desktop_name = SPI_DBUS_NAME_REGISTRY; - app->desktop_path = SPI_DBUS_PATH_ROOT; + app->desktop_name = ATSPI_DBUS_NAME_REGISTRY; + app->desktop_path = ATSPI_DBUS_PATH_ROOT; message = dbus_message_new_method_call (SPI_DBUS_NAME_REGISTRY, - SPI_DBUS_PATH_ROOT, - SPI_DBUS_INTERFACE_SOCKET, + ATSPI_DBUS_PATH_ROOT, + ATSPI_DBUS_INTERFACE_SOCKET, "Embed"); dbus_message_iter_init_append (message, &iter); @@ -346,8 +380,8 @@ deregister_application (SpiBridge * app) dbus_error_init (&error); message = dbus_message_new_method_call (SPI_DBUS_NAME_REGISTRY, - SPI_DBUS_PATH_REGISTRY, - SPI_DBUS_INTERFACE_REGISTRY, + ATSPI_DBUS_PATH_REGISTRY, + ATSPI_DBUS_INTERFACE_REGISTRY, "DeregisterApplication"); dbus_message_set_no_reply (message, TRUE); @@ -362,28 +396,6 @@ deregister_application (SpiBridge * app) /*---------------------------------------------------------------------------*/ -static void -exit_func (void) -{ - if (!spi_global_app_data) - { - return; - } - - spi_atk_tidy_windows (); - spi_atk_deregister_event_listeners (); - deregister_application (spi_global_app_data); - - 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 -} - /*---------------------------------------------------------------------------*/ static AtkPlugClass *plug_class; @@ -414,33 +426,33 @@ socket_ref_state_set (AtkObject *accessible) DBusMessageIter iter, iter_array; AtkStateSet *set; + set = atk_state_set_new (); + if (!socket->embedded_plug_id) - return NULL; + return set; child_name = g_strdup (socket->embedded_plug_id); if (!child_name) - return NULL; + return set; child_path = g_utf8_strchr (child_name + 1, -1, ':'); if (!child_path) { g_free (child_name); - return NULL; + return set; } *(child_path++) = '\0'; - message = dbus_message_new_method_call (child_name, child_path, SPI_DBUS_INTERFACE_ACCESSIBLE, "GetState"); + message = dbus_message_new_method_call (child_name, child_path, ATSPI_DBUS_INTERFACE_ACCESSIBLE, "GetState"); g_free (child_name); reply = dbus_connection_send_with_reply_and_block (spi_global_app_data->bus, message, 1, NULL); dbus_message_unref (message); if (reply == NULL) - return NULL; + return set; if (strcmp (dbus_message_get_signature (reply), "au") != 0) { dbus_message_unref (reply); - return NULL; + return set; } - set = atk_state_set_new (); - if (!set) - return NULL; + dbus_message_iter_init (reply, &iter); dbus_message_iter_recurse (&iter, &iter_array); do @@ -482,7 +494,7 @@ socket_embed_hook (AtkSocket * socket, gchar * plug_id) { DBusMessage *message; *(plug_path++) = '\0'; - message = dbus_message_new_method_call (plug_name, plug_path, SPI_DBUS_INTERFACE_SOCKET, "Embedded"); + message = dbus_message_new_method_call (plug_name, plug_path, ATSPI_DBUS_INTERFACE_SOCKET, "Embedded"); dbus_message_append_args (message, DBUS_TYPE_STRING, &path, DBUS_TYPE_INVALID); dbus_connection_send (spi_global_app_data->bus, message, NULL); } @@ -506,19 +518,60 @@ install_plug_hooks () socket_class->embed = socket_embed_hook; } +static uint +get_ancestral_uid (uint pid) +{ + FILE *fp; + char buf [80]; + int ppid = 0; + int uid = 0; + gboolean got_ppid = 0; + gboolean got_uid = 0; + + sprintf (buf, "/proc/%d/status", pid); + fp = fopen (buf, "r"); + if (!fp) + return 0; + while ((!got_ppid || !got_uid) && fgets (buf, sizeof (buf), fp)) + { + if (sscanf (buf, "PPid:\t%d", &ppid) == 1) + got_ppid = TRUE; + else if (sscanf (buf, "Uid:\t%d", &uid) == 1) + got_uid = TRUE; + } + fclose (fp); + + if (!got_ppid || !got_uid) + return 0; + if (uid != 0) + return uid; + if (ppid == 0 || ppid == 1) + return 0; + return get_ancestral_uid (ppid); +} + +static dbus_bool_t +user_check (DBusConnection *bus, unsigned long uid, void *data) +{ + if (uid == getuid () || uid == geteuid ()) + return TRUE; + if (getuid () == 0) + return get_ancestral_uid (getpid ()) == uid; + return FALSE; +} + 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); - dbus_connection_setup_with_g_main(con, NULL); + atspi_dbus_connection_setup_with_g_main(con, NULL); droute_intercept_dbus (con); droute_context_register (spi_global_app_data->droute, con); - new_list = g_list_append (spi_global_app_data->direct_connections, con); - if (new_list) - spi_global_app_data->direct_connections = new_list; + spi_global_app_data->direct_connections = g_list_append (spi_global_app_data->direct_connections, con); } static int @@ -532,7 +585,7 @@ setup_bus (void) 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); @@ -540,7 +593,7 @@ setup_bus (void) return -1; } - dbus_server_setup_with_g_main(server, NULL); + atspi_dbus_server_setup_with_g_main(server, NULL); dbus_server_set_new_connection_function(server, new_connection_cb, NULL, NULL); spi_global_app_data->server = server; @@ -617,6 +670,8 @@ remove_events (const char *bus_name, const char *event) list = list->next; } } + + g_strfreev (remove_data); } static void @@ -634,6 +689,25 @@ handle_event_listener_deregistered (DBusConnection *bus, DBusMessage *message, 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) { @@ -644,7 +718,7 @@ signal_filter (DBusConnection *bus, DBusMessage *message, void *user_data) if (dbus_message_get_type (message) != DBUS_MESSAGE_TYPE_SIGNAL) return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; - if (!strcmp (interface, SPI_DBUS_INTERFACE_REGISTRY)) + if (!strcmp (interface, ATSPI_DBUS_INTERFACE_REGISTRY)) { result = DBUS_HANDLER_RESULT_HANDLED; if (!strcmp (member, "EventListenerRegistered")) @@ -654,6 +728,33 @@ 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")) + { + char *name, *old, *new; + result = DBUS_HANDLER_RESULT_HANDLED; + if (dbus_message_get_args (message, NULL, + DBUS_TYPE_STRING, &name, + DBUS_TYPE_STRING, &old, + DBUS_TYPE_STRING, &new, + DBUS_TYPE_INVALID)) + { + if (*old != '\0' && *new == '\0') + spi_atk_remove_client (old); + } + } + return result; } @@ -668,7 +769,7 @@ signal_filter (DBusConnection *bus, DBusMessage *message, void *user_data) * - Application registration with the AT-SPI registry. * */ -static int +int adaptor_init (gint * argc, gchar ** argv[]) { GOptionContext *opt; @@ -703,12 +804,11 @@ adaptor_init (gint * argc, gchar ** argv[]) /* Allocate global data and do ATK initializations */ spi_global_app_data = g_new0 (SpiBridge, 1); - atk_misc = atk_misc_get_instance (); spi_global_app_data->root = g_object_ref (root); /* Set up D-Bus connection and register bus name */ dbus_error_init (&error); - spi_global_app_data->bus = spi_atk_bridge_get_bus (); + spi_global_app_data->bus = atspi_get_a11y_bus (); if (!spi_global_app_data->bus) { g_free (spi_global_app_data); @@ -732,13 +832,9 @@ adaptor_init (gint * argc, gchar ** argv[]) } } -#ifndef DISABLE_P2P spi_global_app_data->main_context = g_main_context_new (); -#else - spi_global_app_data->main_context = NULL; -#endif - dbus_connection_setup_with_g_main (spi_global_app_data->bus, NULL); + atspi_dbus_connection_setup_with_g_main (spi_global_app_data->bus, NULL); /* Hook our plug-and socket functions */ install_plug_hooks (); @@ -800,6 +896,7 @@ adaptor_init (gint * argc, gchar ** argv[]) /* 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); @@ -814,6 +911,57 @@ adaptor_init (gint * argc, gchar ** argv[]) return 0; } +void +adaptor_cleanup (void) +{ + GList *l; + GSList *ls; + + if (!spi_global_app_data) + return; + + spi_atk_tidy_windows (); + spi_atk_deregister_event_listeners (); + + deregister_application (spi_global_app_data); + + if (spi_global_app_data->bus) + { + dbus_connection_remove_filter (spi_global_app_data->bus, signal_filter, NULL); + droute_context_unregister (spi_global_app_data->droute, spi_global_app_data->bus); + dbus_connection_unref (spi_global_app_data->bus); + } + + for (l = spi_global_app_data->direct_connections; l; l = l->next) + { + 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 (ls = clients; ls; ls = ls->next) + g_free (l->data); + g_slist_free (clients); + clients = NULL; + + g_object_unref (spi_global_cache); + g_object_unref (spi_global_leasing); + g_object_unref (spi_global_register); + + if (spi_global_app_data->main_context) + g_main_context_unref (spi_global_app_data->main_context); + + droute_free (spi_global_app_data->droute); + + g_free (spi_global_app_data); + spi_global_app_data = NULL; +} + /*---------------------------------------------------------------------------*/ int @@ -855,8 +1003,57 @@ gnome_accessibility_module_init (void) void gnome_accessibility_module_shutdown (void) { - spi_atk_deregister_event_listeners (); - exit_func (); + adaptor_cleanup (); +} + +/*---------------------------------------------------------------------------*/ + +static gchar *name_match_tmpl = + "type='signal', interface='org.freedesktop.DBus', member='NameOwnerChanged', arg0='%s'"; + +void +spi_atk_add_client (const char *bus_name) +{ + GSList *l; + gchar *match; + + for (l = clients; l; l = l->next) + { + if (!g_strcmp0 (l->data, bus_name)) + return; + } + if (!clients && spi_global_app_data->events_initialized) + spi_atk_register_event_listeners (); + clients = g_slist_append (clients, g_strdup (bus_name)); + match = g_strdup_printf (name_match_tmpl, bus_name); + dbus_bus_add_match (spi_global_app_data->bus, match, NULL); + g_free (match); +} + +void +spi_atk_remove_client (const char *bus_name) +{ + GSList *l; + GSList *next_node; + + 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_delete_link (clients, l); + if (!clients) + spi_atk_deregister_event_listeners (); + } + + l = next_node; + } } /*END------------------------------------------------------------------------*/