* AT-SPI - Assistive Technology Service Provider Interface
* (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
*
+ * Copyright 2008, 2009 Codethink Ltd.
* Copyright 2001, 2002, 2003 Sun Microsystems Inc.,
* Copyright 2001, 2002, 2003 Ximian, Inc.
*
* Boston, MA 02111-1307, USA.
*/
+#define _GNU_SOURCE
#include "config.h"
-#include "dbus/dbus-glib-lowlevel.h"
#include <X11/Xlib.h>
#include <X11/Xatom.h>
-#include <string.h>
-#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
+#include <stdio.h>
#include <stdarg.h>
+#include <string.h>
+#include<sys/stat.h>
#include <atk/atk.h>
-#include <atk/atkobject.h>
-#include <atk/atknoopobject.h>
-#include "accessible.h"
-
-#undef SPI_BRIDGE_DEBUG
-#define DBG(a,b) if(_dbg>=(a))b
+#include <droute/droute.h>
+#include <gmodule.h>
+#include <glib/gi18n.h>
+#include <atspi/atspi.h>
-#define bridge_threads_leave() \
- if (!during_init_shutdown && !g_main_context_is_owner (NULL)) atk_misc_threads_leave(misc);
-#define bridge_threads_enter() \
- if (!during_init_shutdown && !g_main_context_is_owner (NULL)) atk_misc_threads_enter(misc);
+#include "bridge.h"
+#include "event.h"
+#include "adaptors.h"
+#include "object.h"
+#include "accessible-stateset.h"
-typedef struct _SpiAppData SpiAppData;
-struct _SpiAppData
-{
- AtkObject *root;
- DRouteData droute;
-};
+#include "accessible-register.h"
+#include "accessible-leasing.h"
+#include "accessible-cache.h"
-int _dbg = 0;
-static const char *registry = NULL;
-static char *device_event_controller = NULL;
-static SpiAppData *this_app = NULL;
-static gboolean registry_died = FALSE;
-static gboolean atk_listeners_registered = FALSE;
-static gint toplevels = 0;
-static gboolean exiting = FALSE;
-static AtkMisc *misc = NULL;
-static gboolean during_init_shutdown = TRUE;
-
-static guint atk_signal_text_changed;
-static guint atk_signal_children_changed;
-static guint atk_signal_active_descendant_changed;
-static guint atk_signal_text_selection_changed;
-
-/* NOT YET USED
- static guint atk_signal_row_reordered;
- static guint atk_signal_row_inserted;
- static guint atk_signal_row_deleted;
- static guint atk_signal_column_reordered;
- static guint atk_signal_column_inserted;
- static guint atk_signal_column_deleted;
-*/
-
-static guint atk_signal_link_selected;
-static guint atk_signal_bounds_changed;
-
-static const char *spi_atk_bridge_get_registry (void);
-static gboolean spi_atk_bridge_do_registration (void);
-static void spi_atk_bridge_toplevel_added (AtkObject *object,
- guint index,
- AtkObject *child);
-static void spi_atk_bridge_toplevel_removed (AtkObject *object,
- guint index,
- AtkObject *child);
-
-static void spi_atk_bridge_exit_func (void);
-static void spi_atk_register_event_listeners (void);
-static void spi_atk_bridge_focus_tracker (AtkObject *object);
-static gchar *spi_atk_bridge_get_registry_ior (void);
-static void spi_atk_bridge_register_application (const char *registry);
-static gboolean spi_atk_bridge_property_event_listener (GSignalInvocationHint *signal_hint,
- guint n_param_values,
- const GValue *param_values,
- gpointer data);
+#include "spi-dbus.h"
-static gboolean
-spi_atk_bridge_window_event_listener (GSignalInvocationHint *signal_hint,
- guint n_param_values,
- const GValue *param_values,
- gpointer data);
-static gboolean
-spi_atk_bridge_document_event_listener (GSignalInvocationHint *signal_hint,
- guint n_param_values,
- const GValue *param_values,
- gpointer data);
-static gboolean
-spi_atk_bridge_state_event_listener (GSignalInvocationHint *signal_hint,
- guint n_param_values,
- const GValue *param_values,
- gpointer data);
-static gboolean spi_atk_bridge_signal_listener (GSignalInvocationHint *signal_hint,
- guint n_param_values,
- const GValue *param_values,
- gpointer data);
-static gint spi_atk_bridge_key_listener (AtkKeyEventStruct *event,
- gpointer data);
-static void spi_atk_tidy_windows (void);
-static void deregister_application (SpiAppData *app);
-static void reinit_register_vars (void);
-
-/* For automatic libgnome init */
-extern void gnome_accessibility_module_init (void);
-extern void gnome_accessibility_module_shutdown (void);
-
-static int atk_bridge_initialized = FALSE;
-static pid_t atk_bridge_pid = 0;
-static guint atk_bridge_focus_tracker_id = 0;
-static guint atk_bridge_key_event_listener_id = 0;
-static GArray *listener_ids = NULL;
+/*---------------------------------------------------------------------------*/
-/*
- * These exported symbols are hooked by gnome-program
- * to provide automatic module initialization and shutdown.
- */
-extern void gnome_accessibility_module_init (void);
-extern void gnome_accessibility_module_shutdown (void);
+static DBusHandlerResult
+signal_filter (DBusConnection *bus, DBusMessage *message, void *user_data);
-static void
-spi_atk_bridge_init_event_type_consts ()
-{
- static gboolean done = FALSE;
+SpiBridge *spi_global_app_data = NULL;
- if (done)
- return;
+/*static Display *bridge_display = NULL;*/
- atk_signal_children_changed = g_signal_lookup ("children_changed",
- ATK_TYPE_OBJECT);
- atk_signal_text_changed = g_signal_lookup ("text_changed",
- ATK_TYPE_TEXT);
- atk_signal_bounds_changed = g_signal_lookup ("bounds_changed",
- ATK_TYPE_COMPONENT);
- atk_signal_active_descendant_changed =
- g_signal_lookup ("active_descendant_changed",
- ATK_TYPE_OBJECT);
- atk_signal_link_selected = g_signal_lookup ("link_selected",
- ATK_TYPE_HYPERTEXT);
- atk_signal_text_selection_changed = g_signal_lookup ("text_selection_changed",
- ATK_TYPE_TEXT);
- done = TRUE;
-}
+/*---------------------------------------------------------------------------*/
-static gboolean
-post_init (gpointer data)
+/*
+ * Returns a 'canonicalized' value for DISPLAY,
+ * with the screen number stripped off if present.
+ *
+ */
+static const gchar *
+spi_display_name (void)
{
- during_init_shutdown = FALSE;
- return FALSE;
+ 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 DBusObjectPathVTable droute_vtable =
-{
- NULL,
- &droute_message,
- NULL, NULL, NULL, NULL
-};
+/*---------------------------------------------------------------------------*/
-static SpiAppData *
-spi_app_init (AtkObject *root)
+static void
+set_reply (DBusPendingCall *pending, void *user_data)
{
- DBusError error;
- dbus_error_init(&error);
- SpiAppData *ad = (SpiAppData *)calloc(sizeof(SpiAppData), 1);
- if (!ad) return NULL;
- ad->root = root;
- ad->droute.bus = dbus_bus_get(DBUS_BUS_SESSION, &error);
- if (!ad->droute.bus)
- {
- g_warning("Couldn't connect to dbus: %s\n", error.message);
- free(ad);
- return NULL;
- }
- //dbus_connection_set_exit_on_disconnect(ad->droute.bus, FALSE);
- dbus_bus_register(ad->droute.bus, &error);
- spi_dbus_initialize (&ad->droute);
- spi_register_tree_object(ad->droute.bus, &ad->droute, "/org/freedesktop/atspi/tree");
- if (!dbus_connection_try_register_fallback (ad->droute.bus, "/org/freedesktop/atspi/accessible", &droute_vtable, &ad->droute, &error))
- {
- g_warning("Couldn't register droute.\n");
- }
- dbus_connection_setup_with_g_main(ad->droute.bus, g_main_context_default());
- return ad;
+ void **replyptr = (void **)user_data;
+
+ *replyptr = dbus_pending_call_steal_reply (pending);
+ dbus_pending_call_unref (pending);
}
-static int
-atk_bridge_init (gint *argc, gchar **argv[])
+/*---------------------------------------------------------------------------*/
+
+static void
+add_event (const char *bus_name, const char *event)
{
- const char *debug_env_string = g_getenv ("AT_SPI_DEBUG");
- gchar *fname;
- gboolean success = FALSE;
+ event_data *evdata;
+ gchar **data;
+ GList *new_list;
- if (atk_bridge_initialized)
+ spi_atk_add_client (bus_name);
+ evdata = (event_data *) g_malloc (sizeof (*evdata));
+ if (!evdata)
+ return;
+ data = g_strsplit (event, ":", 3);
+ if (!data)
{
- return 0;
+ g_free (evdata);
+ return;
}
- atk_bridge_initialized = TRUE;
- atk_bridge_pid = getpid ();
-
- misc = atk_misc_get_instance();
+ 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;
+}
- if (g_getenv ("ATK_BRIDGE_REDIRECT_LOG"))
- {
- fname = g_strconcat ("/tmp/", g_get_prgname (), ".at-spi-log", NULL);
- /* make sure we're not being redirected - security issue */
- if (!g_file_test (fname, G_FILE_TEST_IS_SYMLINK))
- freopen (fname, "w", stderr);
- g_free (fname);
- }
+static GSList *clients = NULL;
- if (debug_env_string)
- _dbg = (int) g_ascii_strtod (debug_env_string, NULL);
+static void
+get_registered_event_listeners (SpiBridge *app)
+{
+ DBusMessage *message, *reply;
+ DBusMessageIter iter, iter_array, iter_struct;
- /* Connect to dbus */
- this_app = spi_app_init (atk_get_root ());
+ message = dbus_message_new_method_call (SPI_DBUS_NAME_REGISTRY,
+ ATSPI_DBUS_PATH_REGISTRY,
+ ATSPI_DBUS_INTERFACE_REGISTRY,
+ "GetRegisteredEvents");
+ if (!message)
+ return;
- /*
- * We only want to enable the bridge for top level
- * applications, we detect bonobo components by seeing
- * if they were activated with the intention of extracting
- * an impl. by IID - very solid.
- */
-#ifdef WITH_BONOBO
- // TODO: Figure out if this is still needed
- if (bonobo_activation_iid_get ())
-#else
- if (0)
-#endif
+ reply = dbus_connection_send_with_reply_and_block (app->bus, message, 5000, NULL);
+ dbus_message_unref (message);
+ if (!reply)
{
- DBG (1, g_message ("Found Bonobo component\n"));
- g_signal_connect (atk_get_root (),
- "children-changed::add",
- (GCallback) spi_atk_bridge_toplevel_added,
- NULL);
- g_signal_connect (atk_get_root (),
- "children-changed::remove",
- (GCallback) spi_atk_bridge_toplevel_removed,
- NULL);
- /* in this case we redefine 'success' to mean 'registry is present' */
- success = (spi_atk_bridge_get_registry () != NULL);
- }
- else
- {
- success = spi_atk_bridge_do_registration ();
- }
- /*
- * we must emit events even if we are not registered as a
- * full-fledged app; See bugzilla #400709.
- */
- if (success)
- {
- spi_atk_register_event_listeners ();
- spi_atk_bridge_init_event_type_consts ();
+ spi_global_app_data->events_initialized = TRUE;
+ return;
}
- else
+ if (strcmp (dbus_message_get_signature (reply), "a(ss)") != 0)
{
- atk_bridge_initialized = FALSE;
+ g_warning ("atk-bridge: GetRegisteredEvents returned message with unknown signature");
+ dbus_message_unref (reply);
+ spi_global_app_data->events_initialized = TRUE;
+ return;
}
- g_idle_add (post_init, NULL);
-
- return 0;
-}
-
-static gboolean
-spi_atk_bridge_do_registration (void)
-{
- if (spi_atk_bridge_get_registry () == NULL)
+ 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)
{
- g_warning ("Could not locate registry");
- return FALSE;
+ char *bus_name, *event;
+ dbus_message_iter_recurse (&iter_array, &iter_struct);
+ dbus_message_iter_get_basic (&iter_struct, &bus_name);
+ dbus_message_iter_next (&iter_struct);
+ dbus_message_iter_get_basic (&iter_struct, &event);
+ add_event (bus_name, event);
+ dbus_message_iter_next (&iter_array);
}
+ dbus_message_unref (reply);
- /* Create the accessible application server object */
- if (this_app == NULL)
- this_app = spi_app_init (atk_get_root ());
-
- DBG (1, g_message ("About to register application\n"));
-
- spi_atk_bridge_register_application (spi_atk_bridge_get_registry ());
-
- g_atexit (spi_atk_bridge_exit_func);
-
- DBG (1, g_message ("Application registered & listening\n"));
- return TRUE;
+ if (!clients)
+ spi_atk_deregister_event_listeners ();
+ spi_global_app_data->events_initialized = TRUE;
}
static void
-spi_atk_bridge_toplevel_added (AtkObject *object,
- guint index,
- AtkObject *child)
+register_reply (DBusPendingCall *pending, void *user_data)
{
- if (toplevels == 0)
- {
- spi_atk_bridge_do_registration ();
- }
- toplevels++;
-}
+ DBusMessage *reply;
+ SpiBridge *app = user_data;
+ DBusMessage *message;
-static void
-spi_atk_bridge_toplevel_removed (AtkObject *object,
- guint index,
- AtkObject *child)
-{
- toplevels--;
- if (toplevels == 0)
+ reply = dbus_pending_call_steal_reply (pending);
+ dbus_pending_call_unref (pending);
+ if (reply)
{
- deregister_application (this_app);
- reinit_register_vars ();
+ gchar *app_name, *obj_path;
+
+ if (strcmp (dbus_message_get_signature (reply), "(so)") != 0)
+ {
+ g_warning ("AT-SPI: Could not obtain desktop path or name\n");
+ }
+ else
+ {
+ DBusMessageIter iter, iter_struct;
+ dbus_message_iter_init (reply, &iter);
+ dbus_message_iter_recurse (&iter, &iter_struct);
+ dbus_message_iter_get_basic (&iter_struct, &app_name);
+ dbus_message_iter_next (&iter_struct);
+ dbus_message_iter_get_basic (&iter_struct, &obj_path);
+
+ app->desktop_name = g_strdup (app_name);
+ app->desktop_path = g_strdup (obj_path);
+ }
}
- if (toplevels < 0)
+ else
{
- g_warning ("More toplevels removed than added\n");
- toplevels = 0;
+ g_warning ("AT-SPI: Could not embed inside desktop");
+ return;
}
+ dbus_message_unref (reply);
+
+ get_registered_event_listeners (spi_global_app_data);
}
-static void
-spi_atk_bridge_register_application (const char *registry)
+static gboolean
+register_application (SpiBridge * app)
{
DBusMessage *message, *reply;
+ DBusMessageIter iter;
DBusError error;
+ DBusPendingCall *pending;
+ const int max_addr_length = 128; /* should be long enough */
- bridge_threads_leave ();
- message = dbus_message_new_method_call (SPI_DBUS_NAME_REGISTRY, SPI_DBUS_PATH_REGISTRY, SPI_DBUS_INTERFACE_REGISTRY, "registerApplication");
dbus_error_init (&error);
- reply = dbus_connection_send_with_reply_and_block(this_app->droute.bus, message, 1000, &error);
- if (error.message) g_warning (error.message);
- if (reply) dbus_message_unref (reply);
- if (message) dbus_message_unref (message);
- bridge_threads_enter ();
-}
-/*
- * 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;
-}
+ /* These will be overridden when we get a reply, but in practice these
+ defaults should always be correct */
+ app->desktop_name = ATSPI_DBUS_NAME_REGISTRY;
+ app->desktop_path = ATSPI_DBUS_PATH_ROOT;
-static Display *bridge_display = NULL;
+ message = dbus_message_new_method_call (SPI_DBUS_NAME_REGISTRY,
+ ATSPI_DBUS_PATH_ROOT,
+ ATSPI_DBUS_INTERFACE_SOCKET,
+ "Embed");
-static gchar *
-spi_atk_bridge_get_registry_ior (void)
-{
-
- Atom AT_SPI_IOR;
- Atom actual_type;
- int actual_format;
- unsigned char *data = NULL;
- unsigned long nitems;
- unsigned long leftover;
- if (!bridge_display)
- bridge_display = XOpenDisplay (spi_display_name ());
-
- AT_SPI_IOR = XInternAtom (bridge_display, "AT_SPI_IOR", False);
- XGetWindowProperty(bridge_display,
- XDefaultRootWindow (bridge_display),
- AT_SPI_IOR, 0L,
- (long)BUFSIZ, False,
- (Atom) 31, &actual_type, &actual_format,
- &nitems, &leftover, &data);
- if (data == NULL)
- g_warning (_("AT_SPI_REGISTRY was not started at session startup."));
-
- return (gchar *) data;
-
-}
+ dbus_message_iter_init_append (message, &iter);
+ spi_object_append_reference (&iter, app->root);
+
+ if (!dbus_connection_send_with_reply (app->bus, message, &pending, -1)
+ || !pending)
+ {
+ return FALSE;
+ }
+ dbus_pending_call_set_notify (pending, register_reply, app, NULL);
-static const char *
-spi_atk_bridge_get_registry (void)
-{
- // TODO: check for registry dying, as the old code attempted to do
- return "org.freedesktop.atspi.registry";
-}
+ if (message)
+ dbus_message_unref (message);
-static const char *
-spi_atk_bridge_get_dec (void)
-{
- return "/dec";
-}
+ /* 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';
+#endif
-int
-gtk_module_init (gint *argc, gchar **argv[])
-{
- return atk_bridge_init (argc, argv);
+ return TRUE;
}
+/*---------------------------------------------------------------------------*/
+
static void
-add_signal_listener (const char *signal_name)
+deregister_application (SpiBridge * app)
{
- guint id;
+ DBusMessage *message;
+ DBusMessageIter iter;
+ DBusError error;
+ const char *uname;
- id = atk_add_global_event_listener (
- spi_atk_bridge_signal_listener, signal_name);
+ dbus_error_init (&error);
- g_array_append_val (listener_ids, id);
-}
+ message = dbus_message_new_method_call (SPI_DBUS_NAME_REGISTRY,
+ ATSPI_DBUS_PATH_REGISTRY,
+ ATSPI_DBUS_INTERFACE_REGISTRY,
+ "DeregisterApplication");
+ dbus_message_set_no_reply (message, TRUE);
-static void
-spi_atk_register_event_listeners (void)
-{
- /*
- * kludge to make sure the Atk interface types are registered, otherwise
- * the AtkText signal handlers below won't get registered
- */
- guint id;
- GObject *ao = g_object_new (ATK_TYPE_OBJECT, NULL);
- AtkObject *bo = atk_no_op_object_new (ao);
+ uname = dbus_bus_get_unique_name (app->bus);
+ dbus_message_iter_init_append (message, &iter);
+ dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &uname);
+ dbus_connection_send (app->bus, message, NULL);
+ if (message)
+ dbus_message_unref (message);
+}
- if (atk_listeners_registered)
- {
- g_object_unref (G_OBJECT (bo));
- g_object_unref (ao);
- return;
- }
+/*---------------------------------------------------------------------------*/
- atk_listeners_registered = TRUE;
-
- /* Register for focus event notifications, and register app with central registry */
-
- listener_ids = g_array_sized_new (FALSE, TRUE, sizeof (guint), 16);
-
- atk_bridge_focus_tracker_id = atk_add_focus_tracker (spi_atk_bridge_focus_tracker);
-
- id = atk_add_global_event_listener (spi_atk_bridge_property_event_listener,
- "Gtk:AtkObject:property-change");
- g_array_append_val (listener_ids, id);
- id = atk_add_global_event_listener (spi_atk_bridge_window_event_listener,
- "window:create");
- g_array_append_val (listener_ids, id);
- id = atk_add_global_event_listener (spi_atk_bridge_window_event_listener,
- "window:destroy");
- g_array_append_val (listener_ids, id);
- id = atk_add_global_event_listener (spi_atk_bridge_window_event_listener,
- "window:minimize");
- g_array_append_val (listener_ids, id);
- id = atk_add_global_event_listener (spi_atk_bridge_window_event_listener,
- "window:maximize");
- g_array_append_val (listener_ids, id);
- id = atk_add_global_event_listener (spi_atk_bridge_window_event_listener,
- "window:restore");
- g_array_append_val (listener_ids, id);
- id = atk_add_global_event_listener (spi_atk_bridge_window_event_listener,
- "window:activate");
- g_array_append_val (listener_ids, id);
- id = atk_add_global_event_listener (spi_atk_bridge_window_event_listener,
- "window:deactivate");
- g_array_append_val (listener_ids, id);
- id = atk_add_global_event_listener (spi_atk_bridge_document_event_listener,
- "Gtk:AtkDocument:load-complete");
- g_array_append_val (listener_ids, id);
- id = atk_add_global_event_listener (spi_atk_bridge_document_event_listener,
- "Gtk:AtkDocument:reload");
- g_array_append_val (listener_ids, id);
- id = atk_add_global_event_listener (spi_atk_bridge_document_event_listener,
- "Gtk:AtkDocument:load-stopped");
- g_array_append_val (listener_ids, id);
- id = atk_add_global_event_listener (spi_atk_bridge_state_event_listener,
- "Gtk:AtkObject:state-change");
- g_array_append_val (listener_ids, id);
-
- add_signal_listener ("Gtk:AtkObject:children-changed");
- add_signal_listener ("Gtk:AtkObject:visible-data-changed");
- add_signal_listener ("Gtk:AtkObject:active-descendant-changed");
- add_signal_listener ("Gtk:AtkComponent:bounds-changed");
- add_signal_listener ("Gtk:AtkSelection:selection-changed");
- add_signal_listener ("Gtk:AtkText:text-selection-changed");
- add_signal_listener ("Gtk:AtkText:text-changed");
- add_signal_listener ("Gtk:AtkText:text-caret-moved");
- add_signal_listener ("Gtk:AtkTable:row-inserted");
- add_signal_listener ("Gtk:AtkTable:row-reordered");
- add_signal_listener ("Gtk:AtkTable:row-deleted");
- add_signal_listener ("Gtk:AtkTable:column-inserted");
- add_signal_listener ("Gtk:AtkTable:column-reordered");
- add_signal_listener ("Gtk:AtkTable:column-deleted");
- add_signal_listener ("Gtk:AtkTable:model-changed");
- add_signal_listener ("Gtk:AtkHypertext:link-selected");
-/*
- * May add the following listeners to implement preemptive key listening for GTK+
- *
- * atk_add_global_event_listener (spi_atk_bridge_widgetkey_listener, "Gtk:GtkWidget:key-press-event");
- * atk_add_global_event_listener (spi_atk_bridge_widgetkey_listener, "Gtk:GtkWidget:key-release-event");
- */
- atk_bridge_key_event_listener_id = atk_add_key_event_listener (
- spi_atk_bridge_key_listener, NULL);
-
- g_object_unref (G_OBJECT (bo));
- g_object_unref (ao);
-}
+/*---------------------------------------------------------------------------*/
-static void
-deregister_application (SpiAppData *app)
+static AtkPlugClass *plug_class;
+static AtkSocketClass *socket_class;
+
+static gchar *
+get_plug_id (AtkPlug * plug)
{
- const char *registry = spi_atk_bridge_get_registry ();
- bridge_threads_leave ();
- // todo: deregister
- bridge_threads_enter ();
+ const char *uname = dbus_bus_get_unique_name (spi_global_app_data->bus);
+ gchar *path;
+ GString *str = g_string_new (NULL);
+
+ path = spi_register_object_to_path (spi_global_register, G_OBJECT (plug));
+ g_string_printf (str, "%s:%s", uname, path);
+ g_free (path);
+ return g_string_free (str, FALSE);
}
-static void
-spi_atk_bridge_exit_func (void)
+AtkStateSet *
+socket_ref_state_set (AtkObject *accessible)
{
- SpiAppData *app = (SpiAppData *) this_app;
+ char *child_name, *child_path;
+ AtkSocket *socket = ATK_SOCKET (accessible);
+ int count = 0;
+ int j;
+ int v;
+ DBusMessage *message, *reply;
+ DBusMessageIter iter, iter_array;
+ AtkStateSet *set;
- DBG (1, g_message ("exiting bridge\n"));
+ set = atk_state_set_new ();
- if (!app)
+ if (!socket->embedded_plug_id)
+ return set;
+
+ child_name = g_strdup (socket->embedded_plug_id);
+ if (!child_name)
+ return set;
+ child_path = g_utf8_strchr (child_name + 1, -1, ':');
+ if (!child_path)
{
- return;
+ g_free (child_name);
+ return set;
}
- if (atk_bridge_pid != getpid ())
+ *(child_path++) = '\0';
+ 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 set;
+ if (strcmp (dbus_message_get_signature (reply), "au") != 0)
{
- _exit (0);
+ dbus_message_unref (reply);
+ return set;
}
- during_init_shutdown = TRUE;
- exiting = TRUE;
- /*
- * Check whether we still have windows which have not been deleted.
- */
- spi_atk_tidy_windows ();
- /*
- * FIXME: this may be incorrect for apps that do their own bonobo
- * shutdown, until we can explicitly shutdown to get the ordering
- * right.
- */
- if (!registry_died)
- deregister_application (this_app);
- this_app = NULL;
- DBG (1, g_message ("bridge exit func complete.\n"));
-
- if (g_getenv ("AT_BRIDGE_SHUTDOWN"))
+ dbus_message_iter_init (reply, &iter);
+ dbus_message_iter_recurse (&iter, &iter_array);
+ do
{
+ dbus_message_iter_get_basic (&iter_array, &v);
+ for (j = 0; j < 32; j++)
+ {
+ if (v & (1 << j))
+ {
+ AtkState state = spi_atk_state_from_spi_state ((count << 5) + j);
+ atk_state_set_add_state (set, state);
+ }
+ }
+ count++;
}
- if (bridge_display)
- XCloseDisplay (bridge_display);
+ while (dbus_message_iter_next (&iter_array));
+ dbus_message_unref (reply);
+ return set;
}
-void
-gnome_accessibility_module_init (void)
+static void
+socket_embed_hook (AtkSocket * socket, gchar * plug_id)
{
- atk_bridge_init (NULL, NULL);
+ AtkObject *accessible = ATK_OBJECT(socket);
+ gchar *plug_name, *plug_path;
+ AtkObjectClass *klass;
- if (g_getenv ("AT_BRIDGE_SHUTDOWN"))
- {
- g_print("Atk Accessibility bridge initialized\n");
- }
-}
-
-void
-gnome_accessibility_module_shutdown (void)
-{
- int i;
- GArray *ids = listener_ids;
-
- if (!atk_bridge_initialized)
+ /* Force registration */
+ gchar *path = spi_register_object_to_path (spi_global_register, G_OBJECT (accessible));
+ /* Let the plug know that it has been embedded */
+ plug_name = g_strdup (plug_id);
+ if (!plug_name)
{
+ g_free (path);
return;
}
- during_init_shutdown = TRUE;
- atk_bridge_initialized = FALSE;
-
- if (g_getenv ("AT_BRIDGE_SHUTDOWN"))
+ plug_path = g_utf8_strchr (plug_name + 1, -1, ':');
+ if (plug_path)
{
- g_print("Atk Accessibility bridge shutdown\n");
+ DBusMessage *message;
+ *(plug_path++) = '\0';
+ 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);
}
+ g_free (plug_name);
+ g_free (path);
- listener_ids = NULL;
- if (atk_bridge_focus_tracker_id)
- atk_remove_focus_tracker (atk_bridge_focus_tracker_id);
-
- for (i = 0; ids && i < ids->len; i++)
- {
- atk_remove_global_event_listener (g_array_index (ids, guint, i));
- }
-
- if (atk_bridge_key_event_listener_id)
- atk_remove_key_event_listener (atk_bridge_key_event_listener_id);
+ klass = ATK_OBJECT_GET_CLASS (accessible);
+ klass->ref_state_set = socket_ref_state_set;
+}
- deregister_application (this_app);
- this_app = NULL;
+static void
+install_plug_hooks ()
+{
+ gpointer data;
- misc = NULL;
+ data = g_type_class_ref (ATK_TYPE_PLUG);
+ plug_class = ATK_PLUG_CLASS (data);
+ data = g_type_class_ref (ATK_TYPE_SOCKET);
+ socket_class = ATK_SOCKET_CLASS (data);
+ plug_class->get_object_id = get_plug_id;
+ socket_class->embed = socket_embed_hook;
}
-static void emit(AtkObject *object, const char *name, const char *detail, dbus_int32_t detail1, dbus_int32_t detail2, int type, const void *val)
+static uint
+get_ancestral_uid (uint pid)
{
- DBusMessage *sig;
- char *path = spi_dbus_get_path(object);
- DBusMessageIter iter, sub;
- const char *type_as_string = NULL;
- dbus_int32_t dummy = 0;
-
- spi_dbus_update_cache(&this_app->droute);
- if (type == DBUS_TYPE_OBJECT_PATH)
- {
- type_as_string = "o";
- if (!val) val = "";
- }
- else if (type == DBUS_TYPE_STRING) type_as_string = "s";
- else if (type == DBUS_TYPE_INT32) type_as_string = "i";
- else if (type == DBUS_TYPE_UINT32) type_as_string = "u";
- else if (type == DBUS_TYPE_INVALID)
- {
- type = DBUS_TYPE_UINT32;
- type_as_string = "u";
- if (!val) val = &dummy;
- }
- else
+ 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))
{
- g_warning("Unknown type %d in property change signal", type);
+ if (sscanf (buf, "PPid:\t%d", &ppid) == 1)
+ got_ppid = TRUE;
+ else if (sscanf (buf, "Uid:\t%d", &uid) == 1)
+ got_uid = TRUE;
}
- sig = dbus_message_new_signal(path, SPI_DBUS_INTERFACE_ACCESSIBLE, name);
- dbus_message_iter_init_append(sig, &iter);
- if (!detail) detail = "";
- dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &detail);
- dbus_message_iter_append_basic(&iter, DBUS_TYPE_INT32, &detail1);
- dbus_message_iter_append_basic(&iter, DBUS_TYPE_INT32, &detail2);
- dbus_message_iter_open_container(&iter, DBUS_TYPE_VARIANT, type_as_string, &sub);
- dbus_message_iter_append_basic(&sub, type, &val);
- dbus_message_iter_close_container(&iter, &sub);
-printf("emit: %s %s\n", name, detail);
- dbus_connection_send(this_app->droute.bus, sig, NULL);
- g_free(path);
- dbus_message_unref(sig);
+ 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 void
-spi_atk_bridge_focus_tracker (AtkObject *object)
+static dbus_bool_t
+user_check (DBusConnection *bus, unsigned long uid)
{
- emit(object, "focus", NULL, 0, 0, DBUS_TYPE_INVALID, NULL);
+ if (uid == getuid () || uid == geteuid ())
+ return TRUE;
+ if (getuid () == 0)
+ return get_ancestral_uid (getpid ()) == uid;
+ return FALSE;
}
-static void emit_rect(AtkObject *object, const char *name, const char *detail, AtkRectangle *rect)
+static void
+new_connection_cb (DBusServer *server, DBusConnection *con, void *data)
{
- DBusMessage *sig;
- char *path = spi_dbus_get_path(object);
- DBusMessageIter iter, iter_variant, sub;
- dbus_uint32_t x, y, width, height;
- dbus_int32_t dummy = 0;
-
- spi_dbus_update_cache(&this_app->droute);
- x = rect->x;
- y = rect->y;
- width = rect->width;
- height = rect->height;
- sig = dbus_message_new_signal(path, SPI_DBUS_INTERFACE_ACCESSIBLE, name);
- if (!detail) detail = "";
- if (sig)
- {
- dbus_message_iter_init_append (sig, &iter);
- dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &detail);
- dbus_message_iter_append_basic (&iter, DBUS_TYPE_INT32, &dummy);
- dbus_message_iter_append_basic (&iter, DBUS_TYPE_INT32, &dummy);
- if (!dbus_message_iter_open_container (&iter, DBUS_TYPE_VARIANT, "(iiii)", &iter_variant))
- goto oom;
- if (!dbus_message_iter_open_container (&iter_variant, DBUS_TYPE_STRUCT, NULL, &sub))
- goto oom;
- dbus_message_iter_append_basic (&sub, DBUS_TYPE_INT32, &x);
- dbus_message_iter_append_basic (&sub, DBUS_TYPE_INT32, &y);
- dbus_message_iter_append_basic (&sub, DBUS_TYPE_INT32, &width);
- dbus_message_iter_append_basic (&sub, DBUS_TYPE_INT32, &height);
- if (!dbus_message_iter_close_container (&iter_variant, &sub))
- goto oom;
- if (!dbus_message_iter_close_container (&iter, &iter_variant))
- goto oom;
- }
- dbus_connection_send(this_app->droute.bus, sig, NULL);
-oom:
- g_free(path);
- dbus_message_unref(sig);
-}
+ GList *new_list;
-static const char *PropertyChange = "object_property_change";
+ dbus_connection_set_unix_user_function (con, user_check, NULL, NULL);
+ dbus_connection_ref(con);
+ atspi_dbus_connection_setup_with_g_main(con, NULL);
+ droute_intercept_dbus (con);
+ droute_context_register (spi_global_app_data->droute, con);
-static gboolean
-spi_atk_bridge_property_event_listener (GSignalInvocationHint *signal_hint,
- guint n_param_values,
- const GValue *param_values,
- gpointer data)
+ spi_global_app_data->direct_connections = g_list_append (spi_global_app_data->direct_connections, con);
+}
+
+static int
+setup_bus (void)
{
- AtkPropertyValues *values;
- AtkObject *obj;
- const gchar *prop_name;
- const gchar *sp = NULL;
- AtkObject *ao;
- char *s_ao = NULL;
- gint i;
- const gchar *name = NULL;
-
-#ifdef SPI_BRIDGE_DEBUG
- GSignalQuery signal_query;
- const gchar *signame;
- const gchar *s, *s2;
-
- g_signal_query (signal_hint->signal_id, &signal_query);
- signame = signal_query.signal_name;
-
- s2 = g_type_name (G_OBJECT_TYPE (g_value_get_object (param_values + 0)));
- s = atk_object_get_name (ATK_OBJECT (g_value_get_object (param_values + 0)));
- values = (AtkPropertyValues*) g_value_get_pointer (param_values + 1);
- DBG (2, g_message ("Received (property) signal %s:%s:%s from object %s (gail %s)\n",
- g_type_name (signal_query.itype), signame, values->property_name, s, s2));
-
+#ifndef DISABLE_P2P
+ DBusServer *server;
+ DBusError err;
+
+ 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);
+ dbus_error_init (&err);
+ spi_global_app_data->app_bus_addr [0] = '\0';
+ g_main_context_unref (spi_global_app_data->main_context);
+ spi_global_app_data->main_context = NULL;
+ return -1;
+ }
+
+ 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;
#endif
- obj = g_value_get_object (param_values + 0);
- name = atk_object_get_name (obj);
- values = (AtkPropertyValues*) g_value_get_pointer (param_values + 1);
+ return 0;
+}
- prop_name = values->property_name;
- if (strcmp (prop_name, "accessible-name") == 0)
- {
- spi_dbus_notify_change(obj, FALSE, &this_app->droute);
- }
- else if (strcmp (prop_name, "accessible-description") == 0)
- {
- spi_dbus_notify_change(obj, FALSE, &this_app->droute);
- }
- else if (strcmp (prop_name, "accessible-parent") == 0)
- {
- spi_dbus_notify_change(obj, FALSE, &this_app->droute);
- }
- else if (strcmp (prop_name, "accessible-table-summary") == 0)
- {
- ao = atk_table_get_summary (ATK_TABLE (obj));
- s_ao = spi_dbus_get_path(ao);
- emit(obj, PropertyChange, prop_name, 0, 0, DBUS_TYPE_OBJECT_PATH, s_ao);
- }
- else if (strcmp (prop_name, "accessible-table-column-header") == 0)
- {
- i = g_value_get_int (&(values->new_value));
- ao = atk_table_get_column_header (ATK_TABLE (obj), i);
- s_ao = spi_dbus_get_path(ao);
- emit(obj, PropertyChange, prop_name, 0, 0, DBUS_TYPE_OBJECT_PATH, s_ao);
- }
- else if (strcmp (prop_name, "accessible-table-row-header") == 0)
- {
- i = g_value_get_int (&(values->new_value));
- ao = atk_table_get_row_header (ATK_TABLE (obj), i);
- s_ao = spi_dbus_get_path(ao);
- emit(obj, PropertyChange, prop_name, 0, 0, DBUS_TYPE_OBJECT_PATH, s_ao);
- }
- else if (strcmp (prop_name, "accessible-table-row-description") == 0)
- {
- i = g_value_get_int (&(values->new_value));
- sp = atk_table_get_row_description (ATK_TABLE (obj), i);
- emit(obj, PropertyChange, prop_name, 0, 0, DBUS_TYPE_STRING, sp);
- }
- else if (strcmp (prop_name, "accessible-table-column-description") == 0)
- {
- i = g_value_get_int (&(values->new_value));
- sp = atk_table_get_column_description (ATK_TABLE(obj), i);
- emit(obj, PropertyChange, prop_name, 0, 0, DBUS_TYPE_STRING, sp);
- }
- else if (strcmp (prop_name, "accessible-table-caption-object") == 0)
- {
- ao = atk_table_get_caption (ATK_TABLE(obj));
- sp = atk_object_get_name (ao);
- emit(obj, PropertyChange, prop_name, 0, 0, DBUS_TYPE_STRING, sp);
- }
- else
+
+gchar *atspi_dbus_name = NULL;
+static gboolean atspi_no_register = FALSE;
+
+static GOptionEntry atspi_option_entries[] = {
+ {"atspi-dbus-name", 0, 0, G_OPTION_ARG_STRING, &atspi_dbus_name,
+ "D-Bus bus name to register as", NULL},
+ {"atspi-no-register", 0, 0, G_OPTION_ARG_NONE, &atspi_no_register,
+ "Do not register with Registry Daemon", NULL},
+ {NULL}
+};
+
+static gchar *
+introspect_children_cb (const char *path, void *data)
+{
+ if (!strcmp (path, "/org/a11y/atspi/accessible"))
{
- emit(obj, PropertyChange, prop_name, 0, 0, DBUS_TYPE_INVALID, NULL);
+ return g_strdup ("<node name=\"root\"/>\n");
+ /* TODO: Should we place the whole hierarchy here? */
}
- if (s_ao) g_free(s_ao);
- return TRUE;
+ return NULL;
}
-static gboolean
-spi_atk_bridge_state_event_listener (GSignalInvocationHint *signal_hint,
- guint n_param_values,
- const GValue *param_values,
- gpointer data)
+static void
+handle_event_listener_registered (DBusConnection *bus, DBusMessage *message,
+ void *user_data)
{
- AtkObject *obj;
- gchar *property_name;
- unsigned long detail1;
-#ifdef SPI_BRIDGE_DEBUG
- GSignalQuery signal_query;
- const gchar *name;
-
- g_signal_query (signal_hint->signal_id, &signal_query);
- name = signal_query.signal_name;
- fprintf (stderr, "Received (state) signal %s:%s\n",
- g_type_name (signal_query.itype), name);
-#endif
+ const char *name;
+ char *sender;
- obj = ATK_OBJECT(g_value_get_object (param_values + 0));
- property_name = g_strdup (g_value_get_string (param_values + 1));
- /* Ignore defunct for now; we'll send a tree update to remove it when
- the object goes away */
- /* Also ignore state changes for objects not yet broadcast */
- if ((property_name && !strcmp(property_name, "defunct")) ||
- !spi_dbus_object_is_known(obj))
- {
- g_free(property_name);
- return TRUE;
- }
- detail1 = (g_value_get_boolean (param_values + 2))
- ? 1 : 0;
- emit(obj, "object_state_changed", property_name, detail1, 0, DBUS_TYPE_INVALID, NULL);
- g_free (property_name);
- return TRUE;
+ if (!dbus_message_get_args (message, NULL, DBUS_TYPE_STRING, &sender,
+ DBUS_TYPE_STRING, &name, DBUS_TYPE_INVALID))
+ return;
+
+ add_event (sender, name);
}
static void
-spi_init_keystroke_from_atk_key_event (Accessibility_DeviceEvent *keystroke,
- AtkKeyEventStruct *event)
+remove_events (const char *bus_name, const char *event)
{
-#ifdef SPI_DEBUG
- if (event)
- {
- g_print ("event %c (%d)\n", (int) event->keyval, (int) event->keycode);
- }
- else
-#endif
- if (!event)
- { /* this doesn't really need translating */
- g_print (_("WARNING: NULL key event reported."));
- }
-
- keystroke->id = (dbus_int32_t) event->keyval;
- keystroke->hw_code = (dbus_int16_t) event->keycode;
- keystroke->timestamp = (dbus_uint32_t) event->timestamp;
- keystroke->modifiers = (dbus_uint16_t) (event->state & 0xFFFF);
- if (event->string)
- {
- gunichar c;
+ event_data *evdata;
+ gchar **remove_data;
+ GList *list;
- keystroke->event_string = g_strdup (event->string);
- c = g_utf8_get_char_validated (event->string, -1);
- if (c > 0 && g_unichar_isprint (c))
- keystroke->is_text = TRUE;
- else
- keystroke->is_text = FALSE;
- }
- else
+ remove_data = g_strsplit (event, ":", 3);
+ if (!remove_data)
{
- keystroke->event_string = g_strdup ("");
- keystroke->is_text = FALSE;
+ return;
}
- switch (event->type)
+
+ for (list = spi_global_app_data->events; list;)
{
- case (ATK_KEY_EVENT_PRESS):
- keystroke->type = Accessibility_KEY_PRESSED_EVENT;
- break;
- case (ATK_KEY_EVENT_RELEASE):
- keystroke->type = Accessibility_KEY_RELEASED_EVENT;
- break;
- default:
- keystroke->type = 0;
- break;
+ event_data *evdata = list->data;
+ if (!g_strcmp0 (evdata->bus_name, bus_name) &&
+ spi_event_is_subtype (evdata->data, remove_data))
+ {
+ GList *events = spi_global_app_data->events;
+ list = list->next;
+ g_strfreev (evdata->data);
+ g_free (evdata->bus_name);
+ g_free (evdata);
+ spi_global_app_data->events = g_list_remove (events, evdata);
+ }
+ else
+ {
+ list = list->next;
+ }
}
-#if 0
- g_print ("key_event type %d; val=%d code=%d modifiers=%x name=%s is_text=%d, time=%lx\n",
- (int) keystroke->type, (int) keystroke->id, (int) keystroke->hw_code,
- (int) keystroke->modifiers,
- keystroke->event_string, (int) keystroke->is_text, (unsigned long) keystroke->timestamp);
-#endif
+
+ g_strfreev (remove_data);
}
-static gboolean Accessibility_DeviceEventController_notifyListenersSync(const Accessibility_DeviceEvent *key_event)
+static void
+handle_event_listener_deregistered (DBusConnection *bus, DBusMessage *message,
+ void *user_data)
{
- DBusMessage *message = dbus_message_new_method_call(SPI_DBUS_NAME_REGISTRY, SPI_DBUS_PATH_REGISTRY, SPI_DBUS_INTERFACE_DEC);
- DBusError error;
- dbus_bool_t consumed = FALSE;
+ const char *orig_name;
+ gchar *name;
+ char *sender;
- dbus_error_init(&error);
- if (spi_dbus_marshal_deviceEvent(message, key_event))
- {
- DBusMessage *reply = dbus_connection_send_with_reply_and_block(this_app->droute.bus, message, 1000, &error);
- if (reply)
- {
- DBusError error;
- dbus_error_init(&error);
- dbus_message_get_args(reply, &error, DBUS_TYPE_BOOLEAN, &consumed, DBUS_TYPE_INVALID);
- dbus_message_unref(reply);
- }
- }
- dbus_message_unref(message);
- return consumed;
+ if (!dbus_message_get_args (message, NULL, DBUS_TYPE_STRING, &sender,
+ DBUS_TYPE_STRING, &name, DBUS_TYPE_INVALID))
+ return;
+
+ remove_events (sender, name);
}
-static gint
-spi_atk_bridge_key_listener (AtkKeyEventStruct *event, gpointer data)
+static DBusHandlerResult
+signal_filter (DBusConnection *bus, DBusMessage *message, void *user_data)
{
- gboolean result;
- Accessibility_DeviceEvent key_event;
+ const char *interface = dbus_message_get_interface (message);
+ const char *member = dbus_message_get_member (message);
+ DBusHandlerResult result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
- spi_init_keystroke_from_atk_key_event (&key_event, event);
+ if (dbus_message_get_type (message) != DBUS_MESSAGE_TYPE_SIGNAL)
+ return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
- bridge_threads_leave ();
- result = Accessibility_DeviceEventController_notifyListenersSync (&key_event);
- bridge_threads_enter ();
+ if (!strcmp (interface, ATSPI_DBUS_INTERFACE_REGISTRY))
+ {
+ result = DBUS_HANDLER_RESULT_HANDLED;
+ if (!strcmp (member, "EventListenerRegistered"))
+ handle_event_listener_registered (bus, message, user_data);
+ else if (!strcmp (member, "EventListenerDeregistered"))
+ handle_event_listener_deregistered (bus, message, user_data);
+ else
+ result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+ }
- if (key_event.event_string) g_free (key_event.event_string);
+ 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;
}
-static gboolean
-spi_atk_bridge_signal_listener (GSignalInvocationHint *signal_hint,
- guint n_param_values,
- const GValue *param_values,
- gpointer data)
+/*
+ * spi_app_init
+ *
+ * The following needs to be initialized.
+ *
+ * - DRoute for routing message to their accessible objects.
+ * - Event handlers for emmitting signals on specific ATK events.
+ * - setup the bus for p2p communication
+ * - Application registration with the AT-SPI registry.
+ *
+ */
+static int
+adaptor_init (gint * argc, gchar ** argv[])
{
- AtkObject *obj;
- GSignalQuery signal_query;
- const gchar *name;
- const gchar *detail = NULL;
- char *sp = NULL;
- AtkObject *ao;
- gint detail1 = 0, detail2 = 0;
- char *s_ao = NULL;
- gchar *sig_name;
- char *p;
-#ifdef SPI_BRIDGE_DEBUG
- const gchar *s, *s2;
-#endif
-
- g_signal_query (signal_hint->signal_id, &signal_query);
-
- name = signal_query.signal_name;
- if (signal_hint->detail)
- {
- detail = g_quark_to_string (signal_hint->detail);
- }
- sig_name = g_strdup_printf("object_%s", name);
- while ((p = strchr(sig_name, '-')) != NULL) *p = '_';
-
-#ifdef SPI_BRIDGE_DEBUG
- s2 = g_type_name (G_OBJECT_TYPE (g_value_get_object (param_values + 0)));
- s = atk_object_get_name (ATK_OBJECT (g_value_get_object (param_values + 0)));
- fprintf (stderr, "Received signal %s:%s detail: %s from object %s (gail %s)\n",
- g_type_name (signal_query.itype), name,
- detail ? detail : "<NULL>", s ? s : "<NULL>" , s2);
-#endif
-
- obj = ATK_OBJECT(g_value_get_object (param_values + 0));
+ GOptionContext *opt;
+ GError *err = NULL;
+ DBusError error;
+ AtkObject *root;
+ gchar *introspection_directory;
+ static gboolean inited = FALSE;
- if (signal_query.signal_id == atk_signal_active_descendant_changed)
- {
- gpointer child = g_value_get_pointer (param_values + 1);
+ if (inited)
+ return 0;
- g_return_val_if_fail (ATK_IS_OBJECT (child), TRUE);
+ inited = TRUE;
- ao = ATK_OBJECT (child);
+ DRoutePath *treepath, *accpath;
- detail1 = atk_object_get_index_in_parent (ao);
- s_ao = spi_dbus_get_path(child);
- emit(obj, sig_name, detail, detail1, 0, DBUS_TYPE_OBJECT_PATH, s_ao);
- g_free(s_ao);
- }
- else if (signal_query.signal_id == atk_signal_link_selected)
+ root = atk_get_root ();
+ g_warn_if_fail (root);
+ if (!root)
{
- if (G_VALUE_TYPE (param_values + 1) == G_TYPE_INT)
- detail1 = g_value_get_int (param_values + 1);
- emit(obj, sig_name, detail, detail1, 0, DBUS_TYPE_INVALID, NULL);
+ inited = FALSE;
+ return -1;
}
- else if (signal_query.signal_id == atk_signal_bounds_changed)
- {
- AtkRectangle *atk_rect = NULL;
- if (G_VALUE_HOLDS_BOXED (param_values + 1))
- atk_rect = g_value_get_boxed (param_values + 1);
- emit_rect(obj, sig_name, detail, atk_rect);
- }
- else if ((signal_query.signal_id == atk_signal_children_changed) && obj)
+ /* Parse command line options */
+ opt = g_option_context_new (NULL);
+ g_option_context_add_main_entries (opt, atspi_option_entries, NULL);
+ g_option_context_set_ignore_unknown_options (opt, TRUE);
+ if (!g_option_context_parse (opt, argc, argv, &err))
+ g_warning ("AT-SPI Option parsing failed: %s\n", err->message);
+ g_option_context_free (opt);
+
+ /* Allocate global data and do ATK initializations */
+ spi_global_app_data = g_new0 (SpiBridge, 1);
+ 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 = atspi_get_a11y_bus ();
+ if (!spi_global_app_data->bus)
{
- spi_dbus_notify_change(obj, FALSE, &this_app->droute);
+ g_free (spi_global_app_data);
+ spi_global_app_data = NULL;
+ inited = FALSE;
+ return -1;
}
- else
- {
- if (n_param_values >= 2)
- {
- if (G_VALUE_TYPE (param_values + 1) == G_TYPE_INT)
- detail1 = g_value_get_int (param_values + 1);
- if (n_param_values >= 3)
- {
- if (G_VALUE_TYPE (param_values + 2) == G_TYPE_INT)
- detail2 = g_value_get_int (param_values + 2);
- }
- }
- if (signal_query.signal_id == atk_signal_text_changed)
- {
- sp = atk_text_get_text (ATK_TEXT (obj),
- detail1,
- detail1+detail2);
- emit(obj, sig_name, detail, detail1, detail2, DBUS_TYPE_STRING, sp);
- }
- else if (signal_query.signal_id == atk_signal_text_selection_changed)
+ if (atspi_dbus_name != NULL)
+ {
+ if (dbus_bus_request_name
+ (spi_global_app_data->bus, atspi_dbus_name, 0, &error))
{
- /* Return NULL as the selected string */
- emit(obj, sig_name, detail, detail1, detail2, DBUS_TYPE_STRING, "");
+ g_print ("AT-SPI Recieved D-Bus name - %s\n", atspi_dbus_name);
}
else
{
- emit(obj, sig_name, detail, 0, 0, DBUS_TYPE_INVALID, NULL);
+ g_print
+ ("AT-SPI D-Bus name requested but could not be allocated - %s\n",
+ atspi_dbus_name);
}
}
- if (sp)
- g_free (sp);
+ spi_global_app_data->main_context = g_main_context_new ();
- if (s_ao)
- g_free (s_ao);
- g_free(sig_name);
+ atspi_dbus_connection_setup_with_g_main (spi_global_app_data->bus, NULL);
- return TRUE;
+ /* Hook our plug-and socket functions */
+ install_plug_hooks ();
+
+ /*
+ * Create the leasing, register and cache objects.
+ * The order is important here, the cache depends on the
+ * register object.
+ */
+ spi_global_register = g_object_new (SPI_REGISTER_TYPE, NULL);
+ spi_global_leasing = g_object_new (SPI_LEASING_TYPE, NULL);
+ spi_global_cache = g_object_new (SPI_CACHE_TYPE, NULL);
+
+ /* Register droute for routing AT-SPI messages */
+ spi_global_app_data->droute =
+ droute_new ();
+
+ treepath = droute_add_one (spi_global_app_data->droute,
+ "/org/a11y/atspi/cache", spi_global_cache);
+
+ if (!treepath)
+ {
+ g_warning ("atk-bridge: Error in droute_add_one(). Already running?");
+ return -1;
+ }
+
+ accpath = droute_add_many (spi_global_app_data->droute,
+ "/org/a11y/atspi/accessible",
+ NULL,
+ introspect_children_cb,
+ NULL,
+ (DRouteGetDatumFunction)
+ spi_global_register_path_to_object);
+
+
+ /* Register all interfaces with droute and set up application accessible db */
+ spi_initialize_cache (treepath);
+ spi_initialize_accessible (accpath);
+ spi_initialize_application (accpath);
+ spi_initialize_action (accpath);
+ spi_initialize_collection (accpath);
+ spi_initialize_component (accpath);
+ spi_initialize_document (accpath);
+ spi_initialize_editabletext (accpath);
+ spi_initialize_hyperlink (accpath);
+ spi_initialize_hypertext (accpath);
+ spi_initialize_image (accpath);
+ spi_initialize_selection (accpath);
+ spi_initialize_socket (accpath);
+ spi_initialize_table (accpath);
+ spi_initialize_text (accpath);
+ spi_initialize_value (accpath);
+
+ droute_context_register (spi_global_app_data->droute,
+ spi_global_app_data->bus);
+
+ /* Register methods to send D-Bus signals on certain ATK events */
+ 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_connection_add_filter (spi_global_app_data->bus, signal_filter, NULL,
+ NULL);
+
+ /* Register this app by sending a signal out to AT-SPI registry daemon */
+ if (!atspi_no_register && (!root || !ATK_IS_PLUG (root)))
+ register_application (spi_global_app_data);
+ else
+ get_registered_event_listeners (spi_global_app_data);
+
+ setup_bus();
+
+ return 0;
}
-static gboolean
-spi_atk_bridge_window_event_listener (GSignalInvocationHint *signal_hint,
- guint n_param_values,
- const GValue *param_values,
- gpointer data)
+/*---------------------------------------------------------------------------*/
+
+int
+gtk_module_init (gint * argc, gchar ** argv[])
{
- AtkObject *obj;
- GSignalQuery signal_query;
- const gchar *name, *s;
-#ifdef SPI_BRIDGE_DEBUG
- const gchar *s2;
-#endif
-
- g_signal_query (signal_hint->signal_id, &signal_query);
+ const gchar *load_bridge = g_getenv ("NO_AT_BRIDGE");
- name = signal_query.signal_name;
- gchar *sig_name;
+ if (!load_bridge || g_ascii_strtod (load_bridge, NULL) == 0)
+ {
+ return adaptor_init (argc, argv);
+ }
+ return 0;
+}
-#ifdef SPI_BRIDGE_DEBUG
- s2 = g_type_name (G_OBJECT_TYPE (g_value_get_object (param_values + 0)));
- s = atk_object_get_name (ATK_OBJECT (g_value_get_object (param_values + 0)));
- fprintf (stderr, "Received signal %s:%s from object %s (gail %s)\n",
- g_type_name (signal_query.itype), name, s ? s : "<NULL>" , s2);
-#endif
-
- obj = ATK_OBJECT(g_value_get_object (param_values + 0));
+gchar*
+g_module_check_init (GModule *module)
+{
+ g_module_make_resident (module);
- s = atk_object_get_name (obj);
- sig_name = g_strdup_printf("window_%s", name);
- emit(obj, sig_name, NULL, 0, 0, DBUS_TYPE_STRING, s);
- g_free(sig_name);
+ return NULL;
+}
- return TRUE;
+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");
+ }
+ }
}
-static gboolean
-spi_atk_bridge_document_event_listener (GSignalInvocationHint *signal_hint,
- guint n_param_values,
- const GValue *param_values,
- gpointer data)
+void
+gnome_accessibility_module_shutdown (void)
{
- AtkObject *obj;
- GSignalQuery signal_query;
- const gchar *name, *s;
- gchar *sig_name;
-#ifdef SPI_BRIDGE_DEBUG
- const gchar *s2;
-#endif
+ GList *l;
+
+ 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)
+ {
+ droute_context_unregister (spi_global_app_data->droute, l->data);
+ droute_unintercept_dbus (l->data);
+ dbus_connection_unref (l);
+ }
+ g_list_free (spi_global_app_data->direct_connections);
+
+ for (l = clients; l; l = l->next)
+ g_free (l->data);
+ g_list_free (clients);
+ clients = NULL;
+
+ g_object_unref (spi_global_cache);
+ g_object_unref (spi_global_leasing);
+ g_object_unref (spi_global_register);
- g_signal_query (signal_hint->signal_id, &signal_query);
+ if (spi_global_app_data->main_context)
+ g_main_context_unref (spi_global_app_data->main_context);
- name = signal_query.signal_name;
+ droute_free (spi_global_app_data->droute);
-#ifdef SPI_BRIDGE_DEBUG
- s2 = g_type_name (G_OBJECT_TYPE (g_value_get_object (param_values + 0)));
- s = atk_object_get_name (ATK_OBJECT (g_value_get_object (param_values + 0)));
- fprintf (stderr, "Received signal %s:%s from object %s (gail %s)\n",
- g_type_name (signal_query.itype), name, s ? s : "<NULL>" , s2);
+ 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
+}
- obj = ATK_OBJECT(g_value_get_object (param_values + 0));
+static gchar *name_match_tmpl =
+ "type='signal', interface='org.freedesktop.DBus', member='NameOwnerChanged', arg0='%s'";
- s = atk_object_get_name (obj);
- sig_name = g_strdup_printf("document_%s", name);
- emit(obj, sig_name, NULL, 0, 0, DBUS_TYPE_STRING, s);
- g_free(sig_name);
- return TRUE;
+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);
}
-static void
-spi_atk_tidy_windows (void)
+void
+spi_atk_remove_client (const char *bus_name)
{
- AtkObject *root;
- gint n_children;
- gint i;
+ GSList *l;
- root = atk_get_root ();
- n_children = atk_object_get_n_accessible_children (root);
- for (i = 0; i < n_children; i++)
+ for (l = clients; l; l = l->next)
+ {
+ if (!g_strcmp0 (l->data, bus_name))
{
- AtkObject *child;
- AtkStateSet *stateset;
- const gchar *name;
-
- child = atk_object_ref_accessible_child (root, i);
- stateset = atk_object_ref_state_set (child);
-
- name = atk_object_get_name (child);
- if (atk_state_set_contains_state (stateset, ATK_STATE_ACTIVE))
- {
- emit(child, "window:deactivate", NULL, 0, 0, DBUS_TYPE_STRING, name);
- }
- g_object_unref (stateset);
-
- emit(child, "window:destroy", NULL, 0, 0, DBUS_TYPE_STRING, name);
- g_object_unref (child);
+ 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);
+ if (!clients)
+ spi_atk_deregister_event_listeners ();
}
+ }
}
-static void
-reinit_register_vars (void)
-{
- registry = NULL;
- device_event_controller = NULL;
- this_app = NULL;
-}
+/*END------------------------------------------------------------------------*/
projects / platform / core / uifw / at-spi2-atk.git / blobdiff