*
* Copyright 2001, 2002 Sun Microsystems Inc.,
* Copyright 2001, 2002 Ximian, Inc.
+ * Copyright 2010, 2011 Novell, Inc.
*
* This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
+ * modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
+ * Lesser General Public License for more details.
*
- * You should have received a copy of the GNU Library General Public
+ * You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
*/
/*
*/
#include "atspi-private.h"
+#ifdef HAVE_X11
#include "X11/Xlib.h"
-#include "dbus/dbus-glib.h"
+#endif
+#include "atspi-gmain.h"
#include <stdio.h>
#include <string.h>
static DBusConnection *bus = NULL;
static GHashTable *live_refs = NULL;
+static gint method_call_timeout = 800;
+static gint app_startup_time = 15000;
+static gboolean allow_sync = TRUE;
+
+GMainLoop *atspi_main_loop;
+GMainContext *atspi_main_context;
+gboolean atspi_no_cache;
const char *atspi_path_dec = ATSPI_DBUS_PATH_DEC;
const char *atspi_path_registry = ATSPI_DBUS_PATH_REGISTRY;
const char *atspi_interface_registry = ATSPI_DBUS_INTERFACE_REGISTRY;
const char *atspi_interface_selection = ATSPI_DBUS_INTERFACE_SELECTION;
const char *atspi_interface_table = ATSPI_DBUS_INTERFACE_TABLE;
+const char *atspi_interface_table_cell = ATSPI_DBUS_INTERFACE_TABLE_CELL;
const char *atspi_interface_text = ATSPI_DBUS_INTERFACE_TEXT;
const char *atspi_interface_cache = ATSPI_DBUS_INTERFACE_CACHE;
const char *atspi_interface_value = ATSPI_DBUS_INTERFACE_VALUE;
"org.a11y.atspi.LoginHelper",
ATSPI_DBUS_INTERFACE_SELECTION,
ATSPI_DBUS_INTERFACE_TABLE,
+ ATSPI_DBUS_INTERFACE_TABLE_CELL,
ATSPI_DBUS_INTERFACE_TEXT,
ATSPI_DBUS_INTERFACE_VALUE,
NULL
return -1;
}
-static GHashTable *
-get_live_refs (void)
+GHashTable *
+_atspi_get_live_refs (void)
{
if (!live_refs)
{
{
if (!bus)
atspi_init ();
+ if (!bus)
+ g_error ("AT-SPI: Couldn't connect to accessibility bus. Is at-spi-bus-launcher running?");
return bus;
}
#define APP_IS_REGISTRY(app) (!strcmp (app->bus_name, atspi_bus_registry))
+static AtspiAccessible *desktop;
+
static void
cleanup ()
{
GHashTable *refs;
+ gint i;
refs = live_refs;
live_refs = NULL;
{
g_hash_table_destroy (refs);
}
+
+ if (bus)
+ {
+ dbus_connection_close (bus);
+ dbus_connection_unref (bus);
+ bus = NULL;
+ }
+
+ if (!desktop)
+ return;
+
+ /* TODO: Do we need this code, or should we just dispose the desktop? */
+ for (i = desktop->children->len - 1; i >= 0; i--)
+ {
+ AtspiAccessible *child = g_ptr_array_index (desktop->children, i);
+ if (child->parent.app)
+ g_object_run_dispose (G_OBJECT (child->parent.app));
+ g_object_run_dispose (G_OBJECT (child));
+ }
+
+ g_object_run_dispose (G_OBJECT (desktop->parent.app));
+ g_object_unref (desktop);
+ desktop = NULL;
}
static gboolean atspi_inited = FALSE;
if (dbus_message_get_type (reply) == DBUS_MESSAGE_TYPE_METHOD_RETURN)
{
if (dbus_message_get_args (reply, NULL, DBUS_TYPE_STRING, &address,
- DBUS_TYPE_INVALID))
+ DBUS_TYPE_INVALID) && address [0])
{
DBusError error;
+ DBusConnection *bus;
+
dbus_error_init (&error);
- DBusConnection *bus = dbus_connection_open (address, &error);
+ bus = dbus_connection_open_private (address, &error);
if (bus)
{
if (app->bus)
- dbus_connection_unref (app->bus);
+ {
+ dbus_connection_unref (app->bus);
+ }
app->bus = bus;
+ atspi_dbus_connection_setup_with_g_main(bus, g_main_context_default());
+ }
+ else
+ {
+ if (!strcmp (error.name, DBUS_ERROR_FILE_NOT_FOUND))
+ g_warning ("AT-SPI: Unable to open bus connection: %s", error.message);
+ dbus_error_free (&error);
}
}
}
dbus_message_unref (reply);
dbus_pending_call_unref (pending);
+ if (!app->bus)
+ return; /* application has gone away / been disposed */
+
message = dbus_message_new_method_call (app->bus_name,
"/org/a11y/atspi/cache",
atspi_interface_cache, "GetItems");
- dbus_connection_send_with_reply (app->bus, message, &new_pending, 2000);
- dbus_pending_call_set_notify (new_pending, handle_get_items, app, NULL);
+ dbus_connection_send_with_reply (app->bus, message, &new_pending, 2000);
dbus_message_unref (message);
+ if (!new_pending)
+ return;
+ dbus_pending_call_set_notify (new_pending, handle_get_items, app, NULL);
}
static AtspiApplication *
AtspiApplication *app = NULL;
char *bus_name_dup;
DBusMessage *message;
- DBusError error;
DBusPendingCall *pending = NULL;
if (!app_hash)
{
- app_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, (GDestroyNotify)g_hash_table_unref);
+ app_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, (GDestroyNotify)g_object_unref);
if (!app_hash) return NULL;
}
app = g_hash_table_lookup (app_hash, bus_name);
if (!bus_name_dup) return NULL;
// TODO: change below to something that will send state-change:defunct notification if necessary */
app = _atspi_application_new (bus_name);
- if (!app) return NULL;
- app->bus_name = bus_name_dup;
app->hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_object_unref);
app->bus = dbus_connection_ref (_atspi_bus ());
+ gettimeofday (&app->time_added, NULL);
+ app->cache = ATSPI_CACHE_UNDEFINED;
g_hash_table_insert (app_hash, bus_name_dup, app);
- dbus_error_init (&error);
message = dbus_message_new_method_call (bus_name, atspi_path_root,
atspi_interface_application, "GetApplicationBusAddress");
- dbus_connection_send_with_reply (app->bus, message, &pending, 2000);
- dbus_pending_call_set_notify (pending, handle_get_bus_address, app, NULL);
+ dbus_connection_send_with_reply (app->bus, message, &pending, 2000);
dbus_message_unref (message);
+ if (!pending)
+ {
+ g_hash_table_remove (app_hash, bus_name_dup);
+ return NULL;
+ }
+ dbus_pending_call_set_notify (pending, handle_get_bus_address, app, NULL);
return app;
}
{
if (!app->root)
{
- app->root = atspi_accessible_new (app, atspi_path_root);
+ app->root = _atspi_accessible_new (app, atspi_path_root);
app->root->accessible_parent = atspi_get_desktop (0);
+ g_ptr_array_add (app->root->accessible_parent->children, g_object_ref (app->root));
}
return g_object_ref (app->root);
}
{
return g_object_ref (a);
}
- a = atspi_accessible_new (app, path);
+ a = _atspi_accessible_new (app, path);
if (!a)
return NULL;
- g_hash_table_insert (app->hash, g_strdup (a->parent.path), a);
- g_object_ref (a); /* for the hash */
+ g_hash_table_insert (app->hash, g_strdup (a->parent.path), g_object_ref (a));
return a;
}
{
return g_object_ref (hyperlink);
}
- hyperlink = atspi_hyperlink_new (app, path);
- if (!hyperlink)
- return NULL;
+ hyperlink = _atspi_hyperlink_new (app, path);
g_hash_table_insert (app->hash, g_strdup (hyperlink->parent.path), hyperlink);
/* TODO: This should be a weak ref */
g_object_ref (hyperlink); /* for the hash */
if (strcmp (signature, "(so)") != 0)
{
- g_warning (_("AT-SPI: Unknown signature %s for RemoveAccessible"), signature);
+ g_warning ("AT-SPI: Unknown signature %s for RemoveAccessible", signature);
return DBUS_HANDLER_RESULT_HANDLED;
}
return DBUS_HANDLER_RESULT_HANDLED;
}
-static gboolean
-add_app_to_desktop (AtspiAccessible *a, const char *bus_name)
+static DBusHandlerResult
+handle_name_owner_changed (DBusConnection *bus, DBusMessage *message, void *user_data)
{
- DBusError error;
+ const char *name, *new, *old;
+ static gboolean registry_lost = FALSE;
+
+ if (!dbus_message_get_args (message, NULL,
+ DBUS_TYPE_STRING, &name,
+ DBUS_TYPE_STRING, &old,
+ DBUS_TYPE_STRING, &new,
+ DBUS_TYPE_INVALID))
+ {
+ return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+ }
- dbus_error_init (&error);
- AtspiAccessible *obj = ref_accessible (bus_name, atspi_path_root);
- if (obj)
+ if (!strcmp (name, "org.a11y.atspi.Registry"))
{
- GList *new_list = g_list_append (a->children, obj);
- if (new_list)
+ if (registry_lost && !old[0])
{
- a->children = new_list;
- return TRUE;
+ _atspi_reregister_event_listeners ();
+ _atspi_reregister_device_listeners ();
+ registry_lost = FALSE;
}
+ else if (!new[0])
+ registry_lost = TRUE;
}
- else
+ else if (app_hash)
{
- g_warning (_("AT-SPI: Error calling getRoot for %s: %s"), bus_name, error.message);
+ AtspiApplication *app = g_hash_table_lookup (app_hash, old);
+ if (app && !strcmp (app->bus_name, old))
+ g_object_run_dispose (G_OBJECT (app));
}
- return FALSE;
-}
-
-static void
-send_children_changed (AtspiAccessible *parent, AtspiAccessible *child, gboolean add)
-{
- AtspiEvent e;
-
- memset (&e, 0, sizeof (e));
- e.type = (add? "object:children-changed:add": "object:children-changed:remove");
- e.source = parent;
- e.detail1 = g_list_index (parent->children, child);
- e.detail2 = 0;
- _atspi_send_event (&e);
-}
-
-static void
-unref_object_and_descendants (AtspiAccessible *obj)
-{
- GList *l;
-
- for (l = obj->children; l; l = l->next)
- {
- unref_object_and_descendants (l->data);
- }
- g_object_unref (obj);
+ return DBUS_HANDLER_RESULT_HANDLED;
}
static gboolean
-remove_app_from_desktop (AtspiAccessible *a, const char *bus_name)
+add_app_to_desktop (AtspiAccessible *a, const char *bus_name)
{
- GList *l;
- AtspiAccessible *child;
-
- for (l = a->children; l; l = l->next)
- {
- child = l->data;
- if (!strcmp (bus_name, child->parent.app->bus_name)) break;
- }
- if (!l)
- {
- return FALSE;
- }
- send_children_changed (a, child, FALSE);
- a->children = g_list_remove (a->children, child);
- unref_object_and_descendants (child);
- return TRUE;
+ AtspiAccessible *obj = ref_accessible (bus_name, atspi_path_root);
+ /* The app will be added to the desktop as a side-effect of calling
+ * ref_accessible */
+ g_object_unref (obj);
+ return (obj != NULL);
}
-static AtspiAccessible *desktop;
-
void
get_reference_from_iter (DBusMessageIter *iter, const char **app_name, const char **path)
{
static void
add_accessible_from_iter (DBusMessageIter *iter)
{
- GList *new_list;
DBusMessageIter iter_struct, iter_array;
const char *app_name, *path;
AtspiAccessible *accessible;
const char *name, *description;
dbus_uint32_t role;
+ gboolean children_cached = FALSE;
+ dbus_int32_t count, index;
dbus_message_iter_recurse (iter, &iter_struct);
g_object_unref (accessible->accessible_parent);
accessible->accessible_parent = ref_accessible (app_name, path);
- /* Get children */
- while (accessible->children)
+ if (dbus_message_iter_get_arg_type (&iter_struct) == 'i')
{
- g_object_unref (accessible->children->data);
- accessible->children = g_list_remove (accessible->children, accessible->children->data);
+ /* Get index in parent */
+ dbus_message_iter_get_basic (&iter_struct, &index);
+ if (index >= 0 && accessible->accessible_parent)
+ {
+ if (index >= accessible->accessible_parent->children->len)
+ g_ptr_array_set_size (accessible->accessible_parent->children, index + 1);
+ g_ptr_array_index (accessible->accessible_parent->children, index) = g_object_ref (accessible);
+ }
+
+ /* get child count */
+ dbus_message_iter_next (&iter_struct);
+ dbus_message_iter_get_basic (&iter_struct, &count);
+ if (count >= 0)
+ {
+ g_ptr_array_set_size (accessible->children, count);
+ children_cached = TRUE;
+ }
}
- dbus_message_iter_recurse (&iter_struct, &iter_array);
- while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
+ else if (dbus_message_iter_get_arg_type (&iter_struct) == 'a')
{
- AtspiAccessible *child;
- get_reference_from_iter (&iter_array, &app_name, &path);
- child = ref_accessible (app_name, path);
- new_list = g_list_append (accessible->children, child);
- if (new_list) accessible->children = new_list;
+ /* It's the old API with a list of children */
+ /* TODO: Perhaps remove this code eventually */
+ dbus_message_iter_recurse (&iter_struct, &iter_array);
+ while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
+ {
+ AtspiAccessible *child;
+ get_reference_from_iter (&iter_array, &app_name, &path);
+ child = ref_accessible (app_name, path);
+ g_ptr_array_remove (accessible->children, child);
+ g_ptr_array_add (accessible->children, child);
+ }
+ children_cached = TRUE;
}
/* interfaces */
_atspi_dbus_set_state (accessible, &iter_struct);
dbus_message_iter_next (&iter_struct);
- accessible->cached_properties |= ATSPI_CACHE_NAME | ATSPI_CACHE_ROLE | ATSPI_CACHE_PARENT;
+ _atspi_accessible_add_cache (accessible, ATSPI_CACHE_NAME | ATSPI_CACHE_ROLE |
+ ATSPI_CACHE_PARENT | ATSPI_CACHE_DESCRIPTION);
if (!atspi_state_set_contains (accessible->states,
- ATSPI_STATE_MANAGES_DESCENDANTS))
- accessible->cached_properties |= ATSPI_CACHE_CHILDREN;
+ ATSPI_STATE_MANAGES_DESCENDANTS) &&
+ children_cached)
+ _atspi_accessible_add_cache (accessible, ATSPI_CACHE_CHILDREN);
/* This is a bit of a hack since the cache holds a ref, so we don't need
* the one provided for us anymore */
{
const char *sender = dbus_message_get_sender (reply);
const char *error = NULL;
- dbus_message_get_args (reply, NULL, DBUS_TYPE_STRING, &error,
- DBUS_TYPE_INVALID);
- g_warning (_("AT-SPI: Error in GetItems, sender=%s, error=%s"), sender, error);
+ const char *error_name = dbus_message_get_error_name (reply);
+ if (!strcmp (error_name, DBUS_ERROR_SERVICE_UNKNOWN)
+ || !strcmp (error_name, DBUS_ERROR_NO_REPLY))
+ {
+ }
+ else
+ {
+ dbus_message_get_args (reply, NULL, DBUS_TYPE_STRING, &error,
+ DBUS_TYPE_INVALID);
+ g_warning ("AT-SPI: Error in GetItems, sender=%s, error=%s", sender, error);
+ }
dbus_message_unref (reply);
dbus_pending_call_unref (pending);
return;
static AtspiAccessible *
ref_accessible_desktop (AtspiApplication *app)
{
- DBusError error;
+ GError *error;
DBusMessage *message, *reply;
DBusMessageIter iter, iter_array;
gchar *bus_name_dup;
g_object_ref (desktop);
return desktop;
}
- desktop = atspi_accessible_new (app, atspi_path_root);
+ desktop = _atspi_accessible_new (app, atspi_path_root);
if (!desktop)
{
return NULL;
}
- g_hash_table_insert (app->hash, desktop->parent.path, desktop);
- g_object_ref (desktop); /* for the hash */
+ g_hash_table_insert (app->hash, g_strdup (desktop->parent.path),
+ g_object_ref (desktop));
+ app->root = g_object_ref (desktop);
desktop->name = g_strdup ("main");
- dbus_error_init (&error);
message = dbus_message_new_method_call (atspi_bus_registry,
atspi_path_root,
atspi_interface_accessible,
"GetChildren");
if (!message)
return NULL;
- reply = _atspi_dbus_send_with_reply_and_block (message, NULL);
+ error = NULL;
+ reply = _atspi_dbus_send_with_reply_and_block (message, &error);
if (!reply || strcmp (dbus_message_get_signature (reply), "a(so)") != 0)
{
- g_error ("Couldn't get application list: %s", error.message);
+ if (error != NULL)
+ {
+ g_warning ("Couldn't get application list: %s", error->message);
+ g_clear_error (&error);
+ }
if (reply)
dbus_message_unref (reply);
return NULL;
get_reference_from_iter (&iter_array, &app_name, &path);
add_app_to_desktop (desktop, app_name);
}
- dbus_message_unref (reply);
/* Record the alternate name as an alias for org.a11y.atspi.Registry */
bus_name_dup = g_strdup (dbus_message_get_sender (reply));
if (bus_name_dup)
g_hash_table_insert (app_hash, bus_name_dup, app);
- return desktop;
+ dbus_message_unref (reply);
+
+ return g_object_ref (desktop);
}
AtspiAccessible *
_atspi_ref_accessible (const char *app, const char *path)
{
AtspiApplication *a = get_application (app);
- if (!a) return NULL;
+ if (!a)
+ return NULL;
if ( APP_IS_REGISTRY(a))
{
- return ref_accessible_desktop (a);
+ if (!a->root)
+ g_object_unref (ref_accessible_desktop (a)); /* sets a->root */
+ return g_object_ref (a->root);
}
return ref_accessible (app, path);
}
}
else
{
- g_warning (_("AT-SPI: Called _atspi_dbus_return_accessible_from_message with strange signature %s"), signature);
+ g_warning ("AT-SPI: Called _atspi_dbus_return_accessible_from_message with strange signature %s", signature);
}
dbus_message_unref (message);
return retval;
{
DBusMessageIter iter;
AtspiHyperlink *retval = NULL;
- const char *signature = dbus_message_get_signature (message);
+ const char *signature;
+ if (!message)
+ return NULL;
+
+ signature = dbus_message_get_signature (message);
if (!strcmp (signature, "(so)"))
{
dbus_message_iter_init (message, &iter);
}
else
{
- g_warning (_("AT-SPI: Called _atspi_dbus_return_hyperlink_from_message with strange signature %s"), signature);
+ g_warning ("AT-SPI: Called _atspi_dbus_return_hyperlink_from_message with strange signature %s", signature);
}
dbus_message_unref (message);
return retval;
return ref_hyperlink (app_name, path);
}
-const char *cache_signal_type = "((so)(so)(so)a(so)assusau)";
+const char *cache_signal_type = "((so)(so)(so)iiassusau)";
+const char *old_cache_signal_type = "((so)(so)(so)a(so)assusau)";
static DBusHandlerResult
handle_add_accessible (DBusConnection *bus, DBusMessage *message, void *user_data)
{
DBusMessageIter iter;
- const char *sender = dbus_message_get_sender (message);
+ const char *signature = dbus_message_get_signature (message);
- if (strcmp (dbus_message_get_signature (message), cache_signal_type) != 0)
+ if (strcmp (signature, cache_signal_type) != 0 &&
+ strcmp (signature, old_cache_signal_type) != 0)
{
- g_warning (_("AT-SPI: AddAccessible with unknown signature %s\n"),
- dbus_message_get_signature (message));
+ g_warning ("AT-SPI: AddAccessible with unknown signature %s\n", signature);
return DBUS_HANDLER_RESULT_HANDLED;
}
dbus_message_iter_init (message, &iter);
add_accessible_from_iter (&iter);
+ return DBUS_HANDLER_RESULT_HANDLED;
}
typedef struct
void *data;
} BusDataClosure;
-static guint process_deferred_messages_id = -1;
+static GSource *process_deferred_messages_source = NULL;
static void
process_deferred_message (BusDataClosure *closure)
if (type == DBUS_MESSAGE_TYPE_SIGNAL &&
!strncmp (interface, "org.a11y.atspi.Event.", 21))
{
- atspi_dbus_handle_event (closure->bus, closure->message, closure->data);
+ _atspi_dbus_handle_event (closure->bus, closure->message, closure->data);
}
if (dbus_message_is_method_call (closure->message, atspi_interface_device_event_listener, "NotifyEvent"))
{
- atspi_dbus_handle_DeviceEvent (closure->bus,
+ _atspi_dbus_handle_DeviceEvent (closure->bus,
closure->message, closure->data);
}
if (dbus_message_is_signal (closure->message, atspi_interface_cache, "AddAccessible"))
{
handle_remove_accessible (closure->bus, closure->message, closure->data);
}
+ if (dbus_message_is_signal (closure->message, "org.freedesktop.DBus", "NameOwnerChanged"))
+ {
+ handle_name_owner_changed (closure->bus, closure->message, closure->data);
+ }
}
-static GList *deferred_messages = NULL;
+static GQueue *deferred_messages = NULL;
-gboolean
-_atspi_process_deferred_messages (gpointer data)
+static gboolean
+process_deferred_messages (void)
{
static int in_process_deferred_messages = 0;
+ BusDataClosure *closure;
if (in_process_deferred_messages)
return TRUE;
in_process_deferred_messages = 1;
- while (deferred_messages != NULL)
+ while ((closure = g_queue_pop_head (deferred_messages)))
{
- BusDataClosure *closure = deferred_messages->data;
process_deferred_message (closure);
- deferred_messages = g_list_remove (deferred_messages, closure);
dbus_message_unref (closure->message);
dbus_connection_unref (closure->bus);
g_free (closure);
}
- /* If data is NULL, assume that we were called from GLib */
- if (!data)
- process_deferred_messages_id = -1;
in_process_deferred_messages = 0;
return FALSE;
}
+static gboolean
+process_deferred_messages_callback (gpointer data)
+{
+ if (process_deferred_messages ())
+ return G_SOURCE_CONTINUE;
+
+ process_deferred_messages_source = NULL;
+ return G_SOURCE_REMOVE;
+}
+
static DBusHandlerResult
defer_message (DBusConnection *connection, DBusMessage *message, void *user_data)
{
BusDataClosure *closure = g_new (BusDataClosure, 1);
- GList *new_list;
- if (!closure)
- return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
closure->bus = dbus_connection_ref (bus);
closure->message = dbus_message_ref (message);
closure->data = user_data;
- new_list = g_list_append (deferred_messages, closure);
- if (new_list)
- deferred_messages = new_list;
+ g_queue_push_tail (deferred_messages, closure);
+
+ if (process_deferred_messages_source == NULL)
+ {
+ process_deferred_messages_source = g_idle_source_new ();
+ g_source_set_callback (process_deferred_messages_source,
+ process_deferred_messages_callback, NULL, NULL);
+ g_source_attach (process_deferred_messages_source, atspi_main_context);
+ g_source_unref (process_deferred_messages_source);
+ }
- if (process_deferred_messages_id == -1)
- process_deferred_messages_id = g_idle_add (_atspi_process_deferred_messages, NULL);
return DBUS_HANDLER_RESULT_HANDLED;
}
{
return defer_message (bus, message, data);
}
+ if (dbus_message_is_signal (message, "org.freedesktop.DBus", "NameOwnerChanged"))
+ {
+ defer_message (bus, message, data);
+ return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+ }
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
-static const char *signal_interfaces[] =
-{
- "org.a11y.atspi.Event.Object",
- "org.a11y.atspi.Event.Window",
- "org.a11y.atspi.Event.Mouse",
- "org.a11y.atspi.Event.Terminal",
- "org.a11y.atspi.Event.Document",
- "org.a11y.atspi.Event.Focus",
- NULL
-};
-
/*
* Returns a 'canonicalized' value for DISPLAY,
* with the screen number stripped off if present.
*
* TODO: Avoid having duplicate functions for this here and in at-spi2-atk
*/
-static const gchar *
+static gchar *
spi_display_name (void)
{
- static const char *canonical_display_name = NULL;
- if (!canonical_display_name)
+ char *canonical_display_name = NULL;
+ const gchar *display_env = g_getenv ("AT_SPI_DISPLAY");
+
+ if (!display_env)
{
- const gchar *display_env = g_getenv ("AT_SPI_DISPLAY");
- if (!display_env)
+ display_env = g_getenv ("DISPLAY");
+ if (!display_env || !display_env[0])
+ return NULL;
+ else
{
- 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 = g_utf8_strrchr (canonical_display_name, -1, ':');
+ screen_p = g_utf8_strrchr (canonical_display_name, -1, '.');
+ if (screen_p && display_p && (screen_p > display_p))
{
- gchar *display_p, *screen_p;
- canonical_display_name = g_strdup (display_env);
- display_p = g_utf8_strrchr (canonical_display_name, -1, ':');
- screen_p = g_utf8_strrchr (canonical_display_name, -1, '.');
- if (screen_p && display_p && (screen_p > display_p))
- {
- *screen_p = '\0';
- }
+ *screen_p = '\0';
}
}
- else
- {
- canonical_display_name = display_env;
- }
- }
- return canonical_display_name;
-}
-
-/* TODO: Avoid having duplicate functions for this here and in at-spi2-atk */
-static DBusConnection *
-get_accessibility_bus ()
-{
- 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);
- XCloseDisplay (bridge_display);
-
- 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);
- 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;
- }
- }
+ canonical_display_name = g_strdup (display_env);
}
- return bus;
+ return canonical_display_name;
}
/**
*
* Connects to the accessibility registry and initializes the SPI.
*
- * Returns: 0 on success, otherwise an integer error code.
+ * Returns: 0 on success, 1 if already initialized, or an integer error code.
**/
int
atspi_init (void)
{
- DBusError error;
char *match;
+ const gchar *no_cache;
if (atspi_inited)
{
atspi_inited = TRUE;
- g_type_init ();
-
- get_live_refs();
+ _atspi_get_live_refs();
- dbus_error_init (&error);
- bus = get_accessibility_bus ();
+ bus = atspi_get_a11y_bus ();
if (!bus)
- {
- g_error ("Couldn't get session bus");
return 2;
- }
- dbus_bus_register (bus, &error);
- dbus_connection_setup_with_g_main(bus, g_main_context_default());
+ dbus_bus_register (bus, NULL);
+ atspi_dbus_connection_setup_with_g_main(bus, g_main_context_default());
dbus_connection_add_filter (bus, atspi_dbus_filter, NULL, NULL);
- dbind_set_timeout (1000);
match = g_strdup_printf ("type='signal',interface='%s',member='AddAccessible'", atspi_interface_cache);
- dbus_error_init (&error);
- dbus_bus_add_match (bus, match, &error);
+ dbus_bus_add_match (bus, match, NULL);
g_free (match);
match = g_strdup_printf ("type='signal',interface='%s',member='RemoveAccessible'", atspi_interface_cache);
- dbus_bus_add_match (bus, match, &error);
+ dbus_bus_add_match (bus, match, NULL);
g_free (match);
match = g_strdup_printf ("type='signal',interface='%s',member='ChildrenChanged'", atspi_interface_event_object);
- dbus_bus_add_match (bus, match, &error);
+ dbus_bus_add_match (bus, match, NULL);
g_free (match);
match = g_strdup_printf ("type='signal',interface='%s',member='PropertyChange'", atspi_interface_event_object);
- dbus_bus_add_match (bus, match, &error);
+ dbus_bus_add_match (bus, match, NULL);
g_free (match);
match = g_strdup_printf ("type='signal',interface='%s',member='StateChanged'", atspi_interface_event_object);
- dbus_bus_add_match (bus, match, &error);
+ dbus_bus_add_match (bus, match, NULL);
g_free (match);
+
+ dbus_bus_add_match (bus,
+ "type='signal', interface='org.freedesktop.DBus', member='NameOwnerChanged'",
+ NULL);
+
+ no_cache = g_getenv ("ATSPI_NO_CACHE");
+ if (no_cache && g_strcmp0 (no_cache, "0") != 0)
+ atspi_no_cache = TRUE;
+
+ deferred_messages = g_queue_new ();
+
return 0;
}
- static GMainLoop *mainloop;
+/**
+ * atspi_is_initialized:
+ *
+ * Indicates whether AT-SPI has been initialized.
+ *
+ * Returns: %True if initialized; %False otherwise.
+ */
+gboolean
+atspi_is_initialized ()
+{
+ return atspi_inited;
+}
/**
* atspi_event_main:
*
* Starts/enters the main event loop for the AT-SPI services.
*
- * (NOTE: This method does not return control, it is exited via a call to
- * atspi_event_quit () from within an event handler).
+ * NOTE: This method does not return control; it is exited via a call to
+ * #atspi_event_quit from within an event handler.
*
**/
void
atspi_event_main (void)
{
- mainloop = g_main_loop_new (NULL, FALSE);
- g_main_loop_run (mainloop);
+ atspi_main_loop = g_main_loop_new (NULL, FALSE);
+ g_main_loop_run (atspi_main_loop);
+ atspi_main_loop = NULL;
}
/**
* atspi_event_quit:
*
- * Quits the last main event loop for the SPI services,
- * see atspi_event_main
+ * Quits the last main event loop for the AT-SPI services,
+ * See: #atspi_event_main
**/
void
atspi_event_quit (void)
{
- g_main_loop_quit (mainloop);
+ g_main_loop_quit (atspi_main_loop);
}
/**
* atspi_exit:
*
- * Disconnects from the Accessibility Registry and releases
+ * Disconnects from #AtspiRegistry instances and releases
* any floating resources. Call only once at exit.
*
- * Returns: 0 if there were no leaks, otherwise non zero.
+ * Returns: 0 if there were no leaks, otherwise other integer values.
**/
int
atspi_exit (void)
return leaked;
}
+static GSList *hung_processes;
+
+static void
+remove_hung_process (DBusPendingCall *pending, void *data)
+{
+ hung_processes = g_slist_remove (hung_processes, data);
+ g_free (data);
+ dbus_pending_call_unref (pending);
+}
+
+static void
+check_for_hang (DBusMessage *message, DBusError *error, DBusConnection *bus, const char *bus_name)
+{
+ if (!message && error->name &&
+ !strcmp (error->name, "org.freedesktop.DBus.Error.NoReply"))
+ {
+ GSList *l;
+ DBusMessage *message;
+ gchar *bus_name_dup;
+ DBusPendingCall *pending = NULL;
+ for (l = hung_processes; l; l = l->next)
+ if (!strcmp (l->data, bus_name))
+ return;
+ message = dbus_message_new_method_call (bus_name, "/",
+ "org.freedesktop.DBus.Peer",
+ "Ping");
+ if (!message)
+ return;
+ dbus_connection_send_with_reply (bus, message, &pending, -1);
+ dbus_message_unref (message);
+ if (!pending)
+ return;
+ bus_name_dup = g_strdup (bus_name);
+ hung_processes = g_slist_append (hung_processes, bus_name_dup);
+ dbus_pending_call_set_notify (pending, remove_hung_process, bus_name_dup, NULL);
+ }
+}
+
+static gboolean
+connection_is_hung (const char *bus_name)
+{
+ GSList *l;
+
+ for (l = hung_processes; l; l = l->next)
+ if (!strcmp (l->data, bus_name))
+ return TRUE;
+ return FALSE;
+}
+
+static gboolean
+check_app (AtspiApplication *app, GError **error)
+{
+ if (!app || !app->bus)
+ {
+ g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_APPLICATION_GONE,
+ _("The application no longer exists"));
+ return FALSE;
+ }
+
+ if (atspi_main_loop && connection_is_hung (app->bus_name))
+ {
+ g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_IPC,
+ "The process appears to be hung.");
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static void
+set_timeout (AtspiApplication *app)
+{
+ struct timeval tv;
+ int diff;
+
+ if (app && app_startup_time > 0)
+ {
+ gettimeofday (&tv, NULL);
+ diff = (tv.tv_sec - app->time_added.tv_sec) * 1000 + (tv.tv_usec - app->time_added.tv_usec) / 1000;
+ dbind_set_timeout (MAX(method_call_timeout, app_startup_time - diff));
+ }
+ else
+ dbind_set_timeout (method_call_timeout);
+}
+
dbus_bool_t
_atspi_dbus_call (gpointer obj, const char *interface, const char *method, GError **error, const char *type, ...)
{
DBusError err;
AtspiObject *aobj = ATSPI_OBJECT (obj);
- if (!aobj->app || !aobj->app->bus)
+ if (!check_app (aobj->app, error))
+ return FALSE;
+
+ if (!allow_sync)
{
- g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_APPLICATION_GONE,
- _("The application no longer exists"));
+ _atspi_set_error_no_sync (error);
return FALSE;
}
va_start (args, type);
dbus_error_init (&err);
+ set_timeout (aobj->app);
retval = dbind_method_call_reentrant_va (aobj->app->bus, aobj->app->bus_name,
aobj->path, interface, method, &err,
type, args);
va_end (args);
- _atspi_process_deferred_messages ((gpointer)TRUE);
+ check_for_hang (NULL, &err, aobj->app->bus, aobj->app->bus_name);
+ process_deferred_messages ();
if (dbus_error_is_set (&err))
{
- /* TODO: Set gerror */
+ g_set_error(error, ATSPI_ERROR, ATSPI_ERROR_IPC, "%s", err.message);
dbus_error_free (&err);
}
return retval;
return _atspi_dbus_call_partial_va (obj, interface, method, error, type, args);
}
+
DBusMessage *
_atspi_dbus_call_partial_va (gpointer obj,
const char *interface,
dbus_error_init (&err);
- if (!aobj->app || !aobj->app->bus)
- {
- g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_APPLICATION_GONE,
- _("The application no longer exists"));
+ if (!check_app (aobj->app, error))
goto out;
- }
- msg = dbus_message_new_method_call (aobj->app->bus_name, aobj->path, interface, method);
- if (!msg)
- goto out;
+ msg = dbus_message_new_method_call (aobj->app->bus_name, aobj->path, interface, method);
+ if (!msg)
+ goto out;
- p = type;
- dbus_message_iter_init_append (msg, &iter);
- dbind_any_marshal_va (&iter, &p, args);
+ p = type;
+ dbus_message_iter_init_append (msg, &iter);
+ dbind_any_marshal_va (&iter, &p, args);
- reply = dbind_send_and_allow_reentry (aobj->app->bus, msg, &err);
+ set_timeout (aobj->app);
+ reply = dbind_send_and_allow_reentry (aobj->app->bus, msg, &err);
+ check_for_hang (reply, &err, aobj->app->bus, aobj->app->bus_name);
out:
va_end (args);
if (msg)
dbus_message_unref (msg);
- _atspi_process_deferred_messages ((gpointer)TRUE);
+ process_deferred_messages ();
if (dbus_error_is_set (&err))
{
/* TODO: Set gerror */
dbus_error_free (&err);
}
+
+ if (reply && dbus_message_get_type (reply) == DBUS_MESSAGE_TYPE_ERROR)
+ {
+ const char *err_str = NULL;
+ dbus_message_get_args (reply, NULL, DBUS_TYPE_STRING, &err_str, DBUS_TYPE_INVALID);
+ if (err_str)
+ g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_IPC, err_str);
+ dbus_message_unref (reply);
+ return NULL;
+ }
+
return reply;
}
DBusError err;
dbus_bool_t retval = FALSE;
AtspiObject *aobj = ATSPI_OBJECT (obj);
+ char expected_type = (type [0] == '(' ? 'r' : type [0]);
if (!aobj)
return FALSE;
- if (!aobj->app || !aobj->app->bus)
+ if (!check_app (aobj->app, error))
+ return FALSE;
+
+ if (!allow_sync)
{
- g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_APPLICATION_GONE,
- _("The application no longer exists"));
+ _atspi_set_error_no_sync (error);
return FALSE;
}
}
dbus_message_append_args (message, DBUS_TYPE_STRING, &interface, DBUS_TYPE_STRING, &name, DBUS_TYPE_INVALID);
dbus_error_init (&err);
+ set_timeout (aobj->app);
reply = dbind_send_and_allow_reentry (aobj->app->bus, message, &err);
+ check_for_hang (reply, &err, aobj->app->bus, aobj->app->bus_name);
dbus_message_unref (message);
- _atspi_process_deferred_messages ((gpointer)TRUE);
+ process_deferred_messages ();
if (!reply)
{
// TODO: throw exception
if (dbus_message_get_type (reply) == DBUS_MESSAGE_TYPE_ERROR)
{
- const char *err;
- dbus_message_get_args (message, NULL, DBUS_TYPE_STRING, &err, DBUS_TYPE_INVALID);
- if (err)
- g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_IPC, err);
+ const char *err_str = NULL;
+ dbus_message_get_args (reply, NULL, DBUS_TYPE_STRING, &err_str, DBUS_TYPE_INVALID);
+ if (err_str)
+ g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_IPC, err_str);
goto done;
}
dbus_message_iter_init (reply, &iter);
if (dbus_message_iter_get_arg_type (&iter) != 'v')
{
- g_warning (_("AT-SPI: expected a variant when fetching %s from interface %s; got %s\n"), name, interface, dbus_message_get_signature (reply));
+ g_warning ("atspi_dbus_get_property: expected a variant when fetching %s from interface %s; got %s\n", name, interface, dbus_message_get_signature (reply));
goto done;
}
dbus_message_iter_recurse (&iter, &iter_variant);
- if (dbus_message_iter_get_arg_type (&iter_variant) != type[0])
+ if (dbus_message_iter_get_arg_type (&iter_variant) != expected_type)
{
- g_warning (_("atspi_dbus_get_property: Wrong type: expected %s, got %c\n"), type, dbus_message_iter_get_arg_type (&iter_variant));
+ g_warning ("atspi_dbus_get_property: Wrong type: expected %s, got %c\n", type, dbus_message_iter_get_arg_type (&iter_variant));
goto done;
}
if (!strcmp (type, "(so)"))
}
retval = TRUE;
done:
+ dbus_error_free (&err);
if (reply)
dbus_message_unref (reply);
return retval;
bus = (app ? app->bus : _atspi_bus());
dbus_error_init (&err);
+ set_timeout (app);
reply = dbind_send_and_allow_reentry (bus, message, &err);
- _atspi_process_deferred_messages ((gpointer)TRUE);
+ process_deferred_messages ();
dbus_message_unref (message);
- if (err.message)
+ if (dbus_error_is_set (&err))
{
if (error)
g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_IPC, err.message);
GHashTable *
_atspi_dbus_hash_from_iter (DBusMessageIter *iter)
{
- GHashTable *hash = g_hash_table_new (g_str_hash, g_str_equal);
+ GHashTable *hash = g_hash_table_new_full (g_str_hash, g_str_equal,
+ (GDestroyNotify) g_free,
+ (GDestroyNotify) g_free);
DBusMessageIter iter_array, iter_dict;
dbus_message_iter_recurse (iter, &iter_array);
{
const char *name, *value;
gchar *str;
- GArray *new_array;
dbus_message_iter_recurse (&iter_array, &iter_dict);
dbus_message_iter_get_basic (&iter_dict, &name);
dbus_message_iter_next (&iter_dict);
dbus_message_iter_get_basic (&iter_dict, &value);
str = g_strdup_printf ("%s:%s", name, value);
- new_array = g_array_append_val (array, str);
- if (new_array)
- array = new_array;
+ array = g_array_append_val (array, str);
dbus_message_iter_next (&iter_array);;
}
return array;
_atspi_dbus_set_interfaces (AtspiAccessible *accessible, DBusMessageIter *iter)
{
DBusMessageIter iter_array;
+ char *iter_sig = dbus_message_iter_get_signature (iter);
accessible->interfaces = 0;
+ if (strcmp (iter_sig, "as") != 0)
+ {
+ g_warning ("_atspi_dbus_set_interfaces: Passed iterator with invalid signature %s", dbus_message_iter_get_signature (iter));
+ dbus_free (iter_sig);
+ return;
+ }
+ dbus_free (iter_sig);
dbus_message_iter_recurse (iter, &iter_array);
while (dbus_message_iter_get_arg_type (&iter_array) != DBUS_TYPE_INVALID)
{
n = _atspi_get_iface_num (iface);
if (n == -1)
{
- g_warning (_("AT-SPI: Unknown interface %s"), iface);
+ g_warning ("AT-SPI: Unknown interface %s", iface);
}
else
accessible->interfaces |= (1 << n);
dbus_message_iter_next (&iter_array);
}
- accessible->cached_properties |= ATSPI_CACHE_INTERFACES;
+ _atspi_accessible_add_cache (accessible, ATSPI_CACHE_INTERFACES);
}
void
dbus_message_iter_get_fixed_array (&iter_array, &states, &count);
if (count != 2)
{
- g_warning (_("AT-SPI: expected 2 values in states array; got %d\n"), count);
+ g_warning ("AT-SPI: expected 2 values in states array; got %d\n", count);
if (!accessible->states)
accessible->states = _atspi_state_set_new_internal (accessible, 0);
}
else
accessible->states->states = val;
}
- accessible->cached_properties |= ATSPI_CACHE_STATES;
+ _atspi_accessible_add_cache (accessible, ATSPI_CACHE_STATES);
}
GQuark
-atspi_error_quark (void)
+_atspi_error_quark (void)
{
return g_quark_from_static_string ("atspi_error");
}
+/*
+ * Gets the IOR from the XDisplay.
+ */
+#ifdef HAVE_X11
+static char *
+get_accessibility_bus_address_x11 (void)
+{
+ Atom AT_SPI_BUS;
+ Atom actual_type;
+ Display *bridge_display = NULL;
+ int actual_format;
+ char *data;
+ unsigned char *data_x11 = NULL;
+ unsigned long nitems;
+ unsigned long leftover;
+ char *display_name;
+
+ display_name = spi_display_name ();
+ if (!display_name)
+ return NULL;
+
+ bridge_display = XOpenDisplay (display_name);
+ g_free (display_name);
+
+ if (!bridge_display)
+ {
+ g_warning ("Could not open X display");
+ 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_x11);
+ XCloseDisplay (bridge_display);
+
+ data = g_strdup ((gchar *)data_x11);
+ XFree (data_x11);
+ return data;
+}
+#endif
+
+static char *
+get_accessibility_bus_address_dbus (void)
+{
+ DBusConnection *session_bus = NULL;
+ DBusMessage *message;
+ DBusMessage *reply;
+ DBusError error;
+ char *address = NULL;
+
+ session_bus = dbus_bus_get (DBUS_BUS_SESSION, NULL);
+ if (!session_bus)
+ return NULL;
+
+ message = dbus_message_new_method_call ("org.a11y.Bus",
+ "/org/a11y/bus",
+ "org.a11y.Bus",
+ "GetAddress");
+
+ dbus_error_init (&error);
+ reply = dbus_connection_send_with_reply_and_block (session_bus,
+ message,
+ -1,
+ &error);
+ dbus_message_unref (message);
+
+ if (!reply)
+ {
+ g_warning ("AT-SPI: Error retrieving accessibility bus address: %s: %s",
+ error.name, error.message);
+ dbus_error_free (&error);
+ goto out;
+ }
+
+ {
+ const char *tmp_address;
+ if (!dbus_message_get_args (reply,
+ NULL,
+ DBUS_TYPE_STRING,
+ &tmp_address,
+ DBUS_TYPE_INVALID))
+ {
+ dbus_message_unref (reply);
+ goto out;
+ }
+ address = g_strdup (tmp_address);
+ dbus_message_unref (reply);
+ }
+
+out:
+ dbus_connection_unref (session_bus);
+ return address;
+}
+
+static DBusConnection *a11y_bus;
+static dbus_int32_t a11y_dbus_slot = -1;
+
+static void
+a11y_bus_free (void *data)
+{
+ if (data == a11y_bus)
+ {
+ a11y_bus = NULL;
+ dbus_connection_free_data_slot (&a11y_dbus_slot);
+ }
+}
+
+/**
+ * atspi_get_a11y_bus: (skip)
+ */
+DBusConnection *
+atspi_get_a11y_bus (void)
+{
+ DBusError error;
+ char *address = NULL;
+ const char *address_env = NULL;
+
+ if (a11y_bus && dbus_connection_get_is_connected (a11y_bus))
+ return a11y_bus;
+
+ if (a11y_dbus_slot == -1)
+ if (!dbus_connection_allocate_data_slot (&a11y_dbus_slot))
+ g_warning ("AT-SPI: Unable to allocate D-Bus slot");
+
+ address_env = g_getenv ("AT_SPI_BUS_ADDRESS");
+ if (address_env != NULL && *address_env != 0)
+ address = g_strdup (address_env);
+#ifdef HAVE_X11
+ if (!address && g_getenv ("DISPLAY") != NULL &&
+ g_getenv ("WAYLAND_DISPLAY") == NULL)
+ address = get_accessibility_bus_address_x11 ();
+#endif
+ if (!address)
+ address = get_accessibility_bus_address_dbus ();
+ if (!address)
+ return NULL;
+
+ dbus_error_init (&error);
+ a11y_bus = dbus_connection_open_private (address, &error);
+ g_free (address);
+
+ if (!a11y_bus)
+ {
+ if (!g_getenv("SSH_CONNECTION"))
+ g_warning ("Couldn't connect to accessibility bus: %s", error.message);
+ dbus_error_free (&error);
+ return NULL;
+ }
+ else
+ {
+ if (!dbus_bus_register (a11y_bus, &error))
+ {
+ g_warning ("Couldn't register with accessibility bus: %s", error.message);
+ dbus_error_free (&error);
+ dbus_connection_close (a11y_bus);
+ dbus_connection_unref (a11y_bus);
+ a11y_bus = NULL;
+ return NULL;
+ }
+ }
+
+ /* Simulate a weak ref on the bus */
+ dbus_connection_set_data (a11y_bus, a11y_dbus_slot, a11y_bus, a11y_bus_free);
+
+ return a11y_bus;
+}
+
+/**
+ * atspi_set_timeout:
+ * @val: The timeout value, in milliseconds, or -1 to disable the timeout.
+ * @startup_time: The amount of time, in milliseconds, to allow to pass
+ * before enforcing timeouts on an application. Can be used to prevent
+ * timeout exceptions if an application is likely to block for an extended
+ * period of time on initialization. -1 can be passed to disable this
+ * behavior.
+ *
+ * Set the timeout used for method calls. If this is not set explicitly,
+ * a default of 0.8 ms is used.
+ * Note that at-spi2-registryd currently uses a timeout of 3 seconds when
+ * sending a keyboard event notification. This means that, if an AT makes
+ * a call in response to the keyboard notification and the application
+ * being called does not respond before the timeout is reached,
+ * at-spi2-registryd will time out on the keyboard event notification and
+ * pass the key onto the application (ie, reply to indicate that the key
+ * was not consumed), so this may make it undesirable to set a timeout
+ * larger than 3 seconds.
+ *
+ * By default, the normal timeout is set to 800 ms, and the application startup
+ * timeout is set to 15 seconds.
+ */
+void
+atspi_set_timeout (gint val, gint startup_time)
+{
+ method_call_timeout = val;
+ app_startup_time = startup_time;
+}
+
+/**
+ * atspi_set_main_context:
+ * @cnx: The #GMainContext to use.
+ *
+ * Sets the main loop context that AT-SPI should assume is in use when
+ * setting an idle callback.
+ * This function should be called by application-side implementors (ie,
+ * at-spi2-atk) when it is desirable to re-enter the main loop.
+ */
+void
+atspi_set_main_context (GMainContext *cnx)
+{
+ if (atspi_main_context == cnx)
+ return;
+ if (process_deferred_messages_source != NULL)
+ {
+ g_source_destroy (process_deferred_messages_source);
+ process_deferred_messages_source = g_idle_source_new ();
+ g_source_set_callback (process_deferred_messages_source,
+ process_deferred_messages_callback, NULL, NULL);
+ g_source_attach (process_deferred_messages_source, cnx);
+ g_source_unref (process_deferred_messages_source);
+ }
+ atspi_main_context = cnx;
+ atspi_dbus_connection_setup_with_g_main (atspi_get_a11y_bus (), cnx);
+
+ if (desktop)
+ {
+ gint i;
+ for (i = desktop->children->len - 1; i >= 0; i--)
+ {
+ AtspiAccessible *child = g_ptr_array_index (desktop->children, i);
+ if (child->parent.app && child->parent.app->bus)
+ atspi_dbus_connection_setup_with_g_main (child->parent.app->bus, cnx);
+ }
+ }
+}
+
+#ifdef DEBUG_REF_COUNTS
+static void
+print_disposed (gpointer key, gpointer value, gpointer data)
+{
+ AtspiAccessible *accessible = key;
+ if (accessible->parent.app)
+ return;
+ g_print ("disposed: %s %d\n", accessible->name, accessible->role);
+}
+
+void
+debug_disposed ()
+{
+ g_hash_table_foreach (live_refs, print_disposed, NULL);
+}
+#endif
+
+gchar *
+_atspi_name_compat (gchar *name)
+{
+ gchar *p = name;
+
+ while (*p)
+ {
+ if (*p == '-')
+ *p = ' ';
+ p++;
+ }
+ return name;
+}
+
+/**
+ * atspi_role_get_name:
+ * @role: an #AtspiRole object to query.
+ *
+ * Gets a localizable string that indicates the name of an #AtspiRole.
+ * <em>DEPRECATED.</em>
+ *
+ * Returns: a localizable string name for an #AtspiRole enumerated type.
+ **/
+gchar *
+atspi_role_get_name (AtspiRole role)
+{
+ gchar *retval = NULL;
+ GTypeClass *type_class;
+ GEnumValue *value;
+
+ type_class = g_type_class_ref (ATSPI_TYPE_ROLE);
+ g_return_val_if_fail (G_IS_ENUM_CLASS (type_class), NULL);
+
+ value = g_enum_get_value (G_ENUM_CLASS (type_class), role);
+
+ if (value)
+ {
+ retval = g_strdup (value->value_nick);
+ }
+
+ g_type_class_unref (type_class);
+
+ if (retval)
+ return _atspi_name_compat (retval);
+
+ return NULL;
+}
+
+GHashTable *
+_atspi_dbus_update_cache_from_dict (AtspiAccessible *accessible, DBusMessageIter *iter)
+{
+ GHashTable *cache = _atspi_accessible_ref_cache (accessible);
+ DBusMessageIter iter_dict, iter_dict_entry, iter_struct, iter_variant;
+
+ dbus_message_iter_recurse (iter, &iter_dict);
+ while (dbus_message_iter_get_arg_type (&iter_dict) != DBUS_TYPE_INVALID)
+ {
+ const char *key;
+ GValue *val = NULL;
+ dbus_message_iter_recurse (&iter_dict, &iter_dict_entry);
+ dbus_message_iter_get_basic (&iter_dict_entry, &key);
+ dbus_message_iter_next (&iter_dict_entry);
+ dbus_message_iter_recurse (&iter_dict_entry, &iter_variant);
+ if (!strcmp (key, "interfaces"))
+ {
+ _atspi_dbus_set_interfaces (accessible, &iter_variant);
+ }
+ else if (!strcmp (key, "Attributes"))
+ {
+ char *iter_sig = dbus_message_iter_get_signature (&iter_variant);
+ val = g_new0 (GValue, 1);;
+ g_value_init (val, G_TYPE_HASH_TABLE);
+ if (strcmp (iter_sig, "a{ss}") != 0)
+ {
+ dbus_free (iter_sig);
+ break;
+ }
+ dbus_free (iter_sig);
+ g_value_take_boxed (val, _atspi_dbus_hash_from_iter (&iter_variant));
+ }
+ else if (!strcmp (key, "Component.ScreenExtents"))
+ {
+ dbus_int32_t d_int;
+ AtspiRect extents;
+ char *iter_sig = dbus_message_iter_get_signature (&iter_variant);
+ val = g_new0 (GValue, 1);;
+ g_value_init (val, ATSPI_TYPE_RECT);
+ if (strcmp (iter_sig, "(iiii)") != 0)
+ {
+ dbus_free (iter_sig);
+ break;
+ }
+ dbus_free (iter_sig);
+ dbus_message_iter_recurse (&iter_variant, &iter_struct);
+ dbus_message_iter_get_basic (&iter_struct, &d_int);
+ extents.x = d_int;
+ dbus_message_iter_next (&iter_struct);
+ dbus_message_iter_get_basic (&iter_struct, &d_int);
+ extents.y = d_int;
+ dbus_message_iter_next (&iter_struct);
+ dbus_message_iter_get_basic (&iter_struct, &d_int);
+ extents.width = d_int;
+ dbus_message_iter_next (&iter_struct);
+ dbus_message_iter_get_basic (&iter_struct, &d_int);
+ extents.height = d_int;
+ g_value_set_boxed (val, &extents);
+ }
+ if (val)
+ g_hash_table_insert (cache, g_strdup (key), val);
+ dbus_message_iter_next (&iter_dict);
+ }
+
+ return cache;
+}
+
+gboolean
+_atspi_get_allow_sync ()
+{
+ return allow_sync;
+}
+
+gboolean
+_atspi_set_allow_sync (gboolean val)
+{
+ gboolean ret = allow_sync;
+
+ allow_sync = val;
+ return ret;
+}
+
+void
+_atspi_set_error_no_sync (GError **error)
+{
+ g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_SYNC_NOT_ALLOWED,
+ _("Attempted synchronous call where prohibited"));
+}
+
+static const char *sr_introspection = "<!DOCTYPE node PUBLIC \"-//freedesktop//DTD D-BUS Object Introspection 1.0//EN\"\n"
+"\"http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd\">\n"
+"<node name=\"/org/a11y/atspi/screenreader\">\n"
+" <interface name=\"org.a11y.Atspi.ScreenReader\">\n"
+" <signal name=\"ReadingPosition\">\n"
+" <arg type=\"i\"/>\n"
+" <arg type=\"i\"/>\n"
+" </signal>\n"
+" </interface>\n"
+"</node>";
+
+static DBusHandlerResult
+screen_reader_filter (DBusConnection *bus, DBusMessage *message, void *user_data)
+{
+ if (dbus_message_is_method_call (message, DBUS_INTERFACE_INTROSPECTABLE,
+ "Introspect"))
+ {
+ DBusMessage *reply = dbus_message_new_method_return (message);
+ dbus_message_append_args (reply, DBUS_TYPE_STRING, &sr_introspection,
+ DBUS_TYPE_INVALID);
+ dbus_connection_send (bus, reply, NULL);
+ dbus_message_unref (reply);
+ return DBUS_HANDLER_RESULT_HANDLED;
+ }
+ return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+}
+
+gboolean
+_atspi_prepare_screen_reader_interface ()
+{
+ static gint initialized = 0;
+ DBusConnection *a11y_bus = _atspi_bus ();
+
+ if (initialized)
+ return (initialized > 0);
+
+ if (dbus_bus_request_name (a11y_bus, "org.a11y.Atspi.ScreenReader", 0, NULL) < 0)
+ {
+ initialized = -1;
+ return FALSE;
+ }
+
+ initialized = 1;
+ dbus_connection_add_filter (a11y_bus, screen_reader_filter, NULL, NULL);
+ return TRUE;
+}
projects / platform / upstream / at-spi2-core.git / blobdiff