* AT-SPI - Assistive Technology Service Provider Interface
* (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
*
- * Copyright 2008, Codethink Ltd.
+ * Copyright 2008, 2009, Codethink Ltd.
* Copyright 2001, 2002, 2003 Sun Microsystems Inc.,
* Copyright 2001, 2002, 2003 Ximian, Inc.
*
#include <droute/droute.h>
#include "bridge.h"
-#include "atk-dbus.h"
+#include "accessible-register.h"
-#include "spi-common/spi-dbus.h"
+#include "common/spi-dbus.h"
static GArray *listener_ids = NULL;
static gint atk_bridge_key_event_listener_id;
static gint atk_bridge_focus_tracker_id;
-/* Amazingly the ATK event callbacks dont have a user
- * data parameter. Instead, with great sadness, we use
- * some global data. Data is declared and initialized
- * in bridge.c.
- */
-extern SpiAppData *atk_adaptor_app_data;
-
/*---------------------------------------------------------------------------*/
#define ITF_EVENT_OBJECT "org.freedesktop.atspi.Event.Object"
/*---------------------------------------------------------------------------*/
-/* When sending events it is safe to register an accessible object if
- * one does not already exist for a given AtkObject.
- * This is because the cache update signal should then be send before
- * the event signal is sent.
- */
-static gchar *
-get_object_path (AtkObject *accessible)
+static void
+set_reply (DBusPendingCall *pending, void *user_data)
{
- guint ref;
+ void **replyptr = (void **)user_data;
- ref = atk_dbus_register_accessible (accessible);
- return atk_dbus_ref_to_path (ref);
+ *replyptr = dbus_pending_call_steal_reply (pending);
}
-/*---------------------------------------------------------------------------*/
+static DBusMessage *
+send_and_allow_reentry (DBusConnection *bus, DBusMessage *message)
+{
+ DBusPendingCall *pending;
+ DBusMessage *reply = NULL;
+
+ if (!dbus_connection_send_with_reply (bus, message, &pending, -1))
+ {
+ return NULL;
+ }
+ dbus_pending_call_set_notify (pending, set_reply, (void *)&reply, NULL);
+ while (!reply)
+ {
+ if (!dbus_connection_read_write_dispatch (bus, -1)) return NULL;
+ }
+ return reply;
+}
static gboolean
Accessibility_DeviceEventController_notifyListenersSync(const Accessibility_DeviceEvent *key_event)
DBusError error;
dbus_bool_t consumed = FALSE;
- message =
+ message =
dbus_message_new_method_call(SPI_DBUS_NAME_REGISTRY,
- SPI_DBUS_PATH_REGISTRY,
- SPI_DBUS_INTERFACE_DEC,
- "notifyListenersSync");
+ SPI_DBUS_PATH_DEC,
+ SPI_DBUS_INTERFACE_DEC,
+ "notifyListenersSync");
dbus_error_init(&error);
if (spi_dbus_marshal_deviceEvent(message, key_event))
{
- DBusMessage *reply = dbus_connection_send_with_reply_and_block(atk_adaptor_app_data->bus, message, 1000, &error);
+ DBusMessage *reply = send_and_allow_reentry (atk_adaptor_app_data->bus, message);
if (reply)
{
DBusError error;
* the AT-SPI event.
*/
-/*
- * This is a rather annoying function needed to replace
- * NULL values of strings with the empty string. Null string
- * values can be created by the atk_object_get_name or text selection
- */
-static const void *
-provide_defaults(const gint type,
- const void *val)
-{
- switch (type)
- {
- case DBUS_TYPE_STRING:
- case DBUS_TYPE_OBJECT_PATH:
- if (!val)
- return "";
- else
- return val;
- default:
- return val;
- }
-}
-
static void
emit(AtkObject *accessible,
const char *klass,
const char *type,
const void *val)
{
- DBusMessage *sig;
- DBusMessageIter iter, sub;
- gchar *path, *cname, *t;
+ gchar *path;
- path = get_object_path (accessible);
+ /* TODO this is a hack, used becuase child-added events are not guaranteed.
+ * On recieving an event from a non-registered object we check if it can be safely
+ * registered before sending the event.
+ */
+ path = atk_dbus_object_attempt_registration (accessible);
/* Tough decision here
* We won't send events from accessible
* objects that have not yet been added to the accessible tree.
*/
if (path == NULL)
+ {
+#ifdef SPI_ATK_DEBUG
+ g_debug ("AT-SPI: Event recieved from non-registered object");
+#endif
return;
+ }
- if (!klass) klass = "";
- if (!major) major = "";
- if (!minor) minor = "";
-
- /*
- * This is very annoying, but as '-' isn't a legal signal
- * name in D-Bus (Why not??!?) The names need converting
- * on this side, and again on the client side.
- */
- cname = g_strdup(major);
- while ((t = strchr(cname, '-')) != NULL) *t = '_';
-
- sig = dbus_message_new_signal(path, klass, cname);
- g_free(cname);
+ spi_dbus_emit_signal (atk_adaptor_app_data->bus, path, klass, major, minor, detail1, detail2, type, val);
g_free(path);
-
- dbus_message_iter_init_append(sig, &iter);
-
- dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &minor);
- 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, &sub);
- /*
- * I need to convert the string signature to an integer type signature.
- * DBUS_TYPE_INT32 is defined as 'i' whereas the string is "i".
- * I should just be able to cast the first character of the string to an
- * integer.
- */
- val = provide_defaults((int) *type, val);
- dbus_message_iter_append_basic(&sub, (int) *type, &val);
- dbus_message_iter_close_container(&iter, &sub);
-
- dbus_connection_send(atk_adaptor_app_data->bus, sig, NULL);
- dbus_message_unref(sig);
}
/*---------------------------------------------------------------------------*/
gchar *path, *cname, *t;
dbus_int32_t dummy = 0;
- path = get_object_path (accessible);
+ path = atk_dbus_object_to_path (accessible);
/* Tough decision here
* We won't send events from accessible
/*---------------------------------------------------------------------------*/
/*
- * The tree update listener handles the following Atk signals:
- *
- * Gtk:AtkObject:property-change
- *
- * With the folowing property names:
- *
- * accessible-name
- * accessible-description
- * accessible-parent
- *
- * It updates the server side accessible-object database, which
- * will then syncronize with the client-side accessible cache.
- *
- */
-static gboolean
-tree_update_listener (GSignalInvocationHint *signal_hint,
- guint n_param_values,
- const GValue *param_values,
- gpointer data)
-{
- AtkObject *accessible;
- AtkPropertyValues *values;
- const gchar *pname = NULL;
-
- accessible = g_value_get_object (¶m_values[0]);
- values = (AtkPropertyValues*) g_value_get_pointer (¶m_values[1]);
-
- pname = values[0].property_name;
-
- if (strcmp (pname, "accessible-name") == 0 ||
- strcmp (pname, "accessible-description") == 0 ||
- strcmp (pname, "accessible-parent") == 0)
- {
- atk_dbus_update_accessible (accessible);
- }
- return TRUE;
-}
-
-/*
- * Handles the ATK signal 'Gtk:AtkObject:children-changed'.
- *
- * It updates the server side accessible-object database, which
- * will then syncronize with the client-side accessible cache.
- *
- */
-static gboolean
-tree_update_children_listener (GSignalInvocationHint *signal_hint,
- guint n_param_values,
- const GValue *param_values,
- gpointer data)
-{
- AtkObject *accessible;
- const gchar *detail = NULL;
- AtkObject *child;
- gboolean child_needs_unref = FALSE;
-
- if (signal_hint->detail)
- detail = g_quark_to_string (signal_hint->detail);
-
- accessible = g_value_get_object (¶m_values[0]);
- if (!strcmp (detail, "add"))
- {
- gpointer child;
- int index = g_value_get_uint (param_values + 1);
- child = g_value_get_pointer (param_values + 2);
-
- if (ATK_IS_OBJECT (child))
- g_object_ref (child);
- else
- child = atk_object_ref_accessible_child (accessible, index);
-
- atk_dbus_register_accessible (child);
- g_object_unref (child);
- }
- return TRUE;
-}
-
-/*---------------------------------------------------------------------------*/
-
-/*
* The focus listener handles the ATK 'focus' signal and forwards it
* as the AT-SPI event, 'focus:'
*/
AtkObject *otemp;
const gchar *stemp;
gint i;
-
+
accessible = g_value_get_object (¶m_values[0]);
values = (AtkPropertyValues*) g_value_get_pointer (¶m_values[1]);
pname = values[0].property_name;
+ if (strcmp (pname, "accessible-name") == 0 ||
+ strcmp (pname, "accessible-description") == 0 ||
+ strcmp (pname, "accessible-parent") == 0)
+ {
+ return TRUE;
+ }
/* TODO Could improve this control statement by matching
* on only the end of the signal names,
if (strcmp (pname, "accessible-table-summary") == 0)
{
otemp = atk_table_get_summary(ATK_TABLE (accessible));
- stemp = get_object_path (otemp);
- emit(accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0, DBUS_TYPE_OBJECT_PATH_AS_STRING, stemp);
+ stemp = atk_dbus_object_to_path (otemp);
+ if (stemp != NULL)
+ emit(accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0, DBUS_TYPE_OBJECT_PATH_AS_STRING, stemp);
}
else if (strcmp (pname, "accessible-table-column-header") == 0)
{
i = g_value_get_int (&(values->new_value));
otemp = atk_table_get_column_header(ATK_TABLE (accessible), i);
- stemp = get_object_path (otemp);
- emit(accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0, DBUS_TYPE_OBJECT_PATH_AS_STRING, stemp);
+ stemp = atk_dbus_object_to_path (otemp);
+ if (stemp != NULL)
+ emit(accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0, DBUS_TYPE_OBJECT_PATH_AS_STRING, stemp);
}
else if (strcmp (pname, "accessible-table-row-header") == 0)
{
i = g_value_get_int (&(values->new_value));
otemp = atk_table_get_row_header(ATK_TABLE (accessible), i);
- stemp = get_object_path (otemp);
- emit(accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0, DBUS_TYPE_OBJECT_PATH_AS_STRING, stemp);
+ stemp = atk_dbus_object_to_path (otemp);
+ if (stemp != NULL)
+ emit(accessible, ITF_EVENT_OBJECT, PCHANGE, pname, 0, 0, DBUS_TYPE_OBJECT_PATH_AS_STRING, stemp);
}
else if (strcmp (pname, "accessible-table-row-description") == 0)
{
minor = g_quark_to_string (signal_hint->detail);
detail1 = atk_object_get_index_in_parent (child);
- s = get_object_path (child);
+ s = atk_dbus_object_to_path (child);
+ if (s == NULL)
+ {
+ g_free (s);
+ return TRUE;
+ }
emit(accessible, ITF_EVENT_OBJECT, name, "", detail1, 0, DBUS_TYPE_OBJECT_PATH_AS_STRING, s);
g_free(s);
atk_bridge_focus_tracker_id = atk_add_focus_tracker (focus_tracker);
- add_signal_listener (tree_update_listener, "Gtk:AtkObject:property-change");
- add_signal_listener (tree_update_children_listener, "Gtk:AtkObject:children-changed");
-
add_signal_listener (property_event_listener, "Gtk:AtkObject:property-change");
add_signal_listener (window_event_listener, "window:create");
add_signal_listener (window_event_listener, "window:destroy");
add_signal_listener (document_event_listener, "Gtk:AtkDocument:load-complete");
add_signal_listener (document_event_listener, "Gtk:AtkDocument:reload");
add_signal_listener (document_event_listener, "Gtk:AtkDocument:load-stopped");
+ /* TODO Fake this event on the client side */
add_signal_listener (state_event_listener, "Gtk:AtkObject:state-change");
+ /* TODO */
add_signal_listener (active_descendant_event_listener, "Gtk:AtkObject:active-descendant-changed");
add_signal_listener (bounds_event_listener, "Gtk:AtkComponent:bounds-changed");
add_signal_listener (text_selection_changed_event_listener, "Gtk:AtkText:text-selection-changed");
projects / platform / core / uifw / at-spi2-atk.git / blobdiff