* AT-SPI - Assistive Technology Service Provider Interface
* (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
*
- * Copyright 2001 Sun Microsystems Inc.
+ * Copyright 2001, 2002, 2003 Sun Microsystems Inc.,
+ * Copyright 2001, 2002, 2003 Ximian, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
#include <atk/atkobject.h>
#include <atk/atknoopobject.h>
#include <libspi/Accessibility.h>
+#include <libspi/spi-private.h>
#include "accessible.h"
#include "application.h"
#undef SPI_BRIDGE_DEBUG
+#define DBG(a,b) if(_dbg>=(a))b
+
+static int _dbg = 0;
static CORBA_Environment ev;
-static Accessibility_Registry registry;
+static Accessibility_Registry registry = CORBA_OBJECT_NIL;
+static Accessibility_DeviceEventController device_event_controller = CORBA_OBJECT_NIL;
static SpiApplication *this_app = NULL;
+static gboolean registry_died = FALSE;
+static gboolean atk_listeners_registered = FALSE;
+static guint toplevel_handler;
+
+/* NOT YET USED
+ static GQuark atk_quark_property_changed_name;
+ static GQuark atk_quark_property_changed_description;
+ static GQuark atk_quark_property_changed_parent;
+ static GQuark atk_quark_property_changed_role;
+ static GQuark atk_quark_property_changed_table_caption;
+ static GQuark atk_quark_property_changed_table_column_description;
+ static GQuark atk_quark_property_changed_table_row_description;
+*/
+
+static guint atk_signal_text_changed;
+static guint atk_signal_children_changed;
+static guint atk_signal_active_descendant_changed;
+
+/* NOT YET USED
+ static guint atk_signal_text_selection_changed;
+ 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 Accessibility_Registry spi_atk_bridge_get_registry (void);
+static void spi_atk_bridge_do_registration (void);
+static void spi_atk_bridge_toplevel_added (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 void spi_atk_bridge_register_application (Accessibility_Registry registry);
static gboolean spi_atk_bridge_property_event_listener (GSignalInvocationHint *signal_hint,
guint n_param_values,
const GValue *param_values,
extern void gnome_accessibility_module_init (void);
extern void gnome_accessibility_module_shutdown (void);
+static void
+spi_atk_bridge_init_event_type_consts ()
+{
+ 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_active_descendant_changed =
+ g_signal_lookup ("active_descendant_changed",
+ ATK_TYPE_OBJECT);
+ atk_signal_link_selected = g_signal_lookup ("link_selected",
+ ATK_TYPE_HYPERTEXT);
+}
+
static int
atk_bridge_init (gint *argc, gchar **argv[])
{
- CORBA_Environment ev;
+ const char *debug_env_string = g_getenv ("AT_SPI_DEBUG");
if (atk_bridge_initialized)
{
}
atk_bridge_initialized = TRUE;
+ if (debug_env_string)
+ _dbg = (int) g_ascii_strtod (debug_env_string, NULL);
+
if (!bonobo_init (argc, argv ? *argv : NULL))
{
g_error ("Could not initialize Bonobo");
}
/*
- * We only want to enable the bridge for top level
+ * 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.
*/
if (bonobo_activation_iid_get ())
- return 0;
-
- CORBA_exception_init(&ev);
-
- registry = bonobo_activation_activate_from_id (
- "OAFIID:Accessibility_Registry:1.0", 0, NULL, &ev);
-
- if (ev._major != CORBA_NO_EXCEPTION)
{
- g_error ("Accessibility app error: exception during "
- "registry activation from id: %s\n",
- CORBA_exception_id (&ev));
- CORBA_exception_free (&ev);
+ DBG (1, g_message ("Found Bonobo component\n"));
+ toplevel_handler = g_signal_connect (atk_get_root (),
+ "children-changed::add",
+ (GCallback) spi_atk_bridge_toplevel_added,
+ NULL);
+ }
+ else
+ {
+ spi_atk_bridge_do_registration ();
}
+
+ spi_atk_bridge_init_event_type_consts ();
- if (registry == CORBA_OBJECT_NIL)
+ return 0;
+}
+
+
+static void
+spi_atk_bridge_do_registration (void)
+{
+ CORBA_Environment ev;
+
+ CORBA_exception_init(&ev);
+
+ if (spi_atk_bridge_get_registry () == CORBA_OBJECT_NIL)
{
g_error ("Could not locate registry");
}
this_app = spi_application_new (atk_get_root ());
- fprintf (stderr, "About to register application\n");
+ 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"));
- Accessibility_Registry_registerApplication (registry,
+}
+
+static void
+spi_atk_bridge_toplevel_added (AtkObject *object,
+ guint index,
+ AtkObject *child)
+{
+ g_signal_handler_disconnect (object, toplevel_handler);
+ spi_atk_bridge_do_registration ();
+}
+
+static void
+spi_atk_bridge_register_application (Accessibility_Registry registry)
+{
+ Accessibility_Registry_registerApplication (spi_atk_bridge_get_registry (),
BONOBO_OBJREF (this_app),
&ev);
+ spi_atk_register_event_listeners ();
+}
- g_atexit (spi_atk_bridge_exit_func);
+static Accessibility_Registry
+spi_atk_bridge_get_registry (void)
+{
+ CORBA_Environment ev;
- spi_atk_register_event_listeners ();
+ if (registry_died || (registry == NULL)) {
+ CORBA_exception_init (&ev);
+ if (registry_died)
+ DBG (1, g_warning ("registry died! restarting..."));
+ registry = bonobo_activation_activate_from_id (
+ "OAFIID:Accessibility_Registry:1.0", 0, NULL, &ev);
+
+ if (ev._major != CORBA_NO_EXCEPTION)
+ {
+ g_error ("Accessibility app error: exception during "
+ "registry activation from id: %s\n",
+ CORBA_exception_id (&ev));
+ CORBA_exception_free (&ev);
+ }
+
+ if (registry_died && registry) {
+ registry_died = FALSE;
+ spi_atk_bridge_register_application (registry);
+ }
+ }
+ return registry;
+}
- fprintf (stderr, "Application registered & listening\n");
+static Accessibility_DeviceEventController
+spi_atk_bridget_get_dec (void)
+{
+ CORBA_Environment ev;
- return 0;
+ if (device_event_controller != CORBA_OBJECT_NIL)
+ {
+ if (ORBit_small_get_connection_status (device_event_controller)
+ == ORBIT_CONNECTION_CONNECTED)
+ return device_event_controller;
+ }
+
+ CORBA_exception_init (&ev);
+
+ device_event_controller =
+ Accessibility_Registry_getDeviceEventController (
+ spi_atk_bridge_get_registry (), &ev);
+
+ if (BONOBO_EX (&ev))
+ {
+ g_warning ("failure: no deviceeventcontroller found\n");
+ registry_died = TRUE;
+ device_event_controller = CORBA_OBJECT_NIL;
+ }
+
+ return device_event_controller;
}
int
guint id;
GObject *ao = g_object_new (ATK_TYPE_OBJECT, NULL);
AtkObject *bo = atk_no_op_object_new (ao);
-
+
+
+ if (atk_listeners_registered) 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);
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:AtkSelection:selection-changed");
add_signal_listener ("Gtk:AtkText:text-selection-changed");
add_signal_listener ("Gtk:AtkText:text-changed");
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+
*
static void
deregister_application (BonoboObject *app)
{
- Accessibility_Registry_deregisterApplication (
- registry, BONOBO_OBJREF (app), &ev);
+ Accessibility_Registry registry = spi_atk_bridge_get_registry ();
+ Accessibility_Registry_deregisterApplication (registry, BONOBO_OBJREF (app), &ev);
+ device_event_controller = bonobo_object_release_unref (device_event_controller, &ev);
registry = bonobo_object_release_unref (registry, &ev);
app = bonobo_object_unref (app);
{
BonoboObject *app = (BonoboObject *) this_app;
- fprintf (stderr, "exiting bridge\n");
+ DBG (1, g_message ("exiting bridge\n"));
if (!app)
{
*/
if (!bonobo_is_initialized ())
{
- fprintf (stderr, "Re-initializing bonobo\n");
+ DBG (1, g_warning ("Re-initializing bonobo\n"));
g_assert (bonobo_init (0, NULL));
g_assert (bonobo_activate ());
}
deregister_application (app);
- fprintf (stderr, "bridge exit func complete.\n");
+ DBG (1, g_message ("bridge exit func complete.\n"));
if (g_getenv ("AT_BRIDGE_SHUTDOWN"))
{
e.source = BONOBO_OBJREF (source);
e.detail1 = 0;
e.detail2 = 0;
+ spi_init_any_nil (&e.any_data);
+
+ CORBA_exception_init (&ev);
+ Accessibility_Registry_notifyEvent (spi_atk_bridge_get_registry (), &e, &ev);
+ if (BONOBO_EX (&ev))
+ registry_died = TRUE;
- Accessibility_Registry_notifyEvent (registry, &e, &ev);
- Accessibility_Accessible_unref (e.source, &ev);
+ bonobo_object_unref (source);
CORBA_exception_free (&ev);
}
static void
-spi_atk_emit_eventv (GObject *gobject,
- unsigned long detail1,
- unsigned long detail2,
- const char *format, ...)
+spi_atk_emit_eventv (const GObject *gobject,
+ long detail1,
+ long detail2,
+ CORBA_any *any,
+ const char *format, ...)
{
va_list args;
Accessibility_Event e;
{
aobject = NULL;
source = NULL;
- g_error ("received property-change event from non-AtkImplementor");
+ DBG (0, g_warning ("received property-change event from non-AtkImplementor"));
}
- if (source != NULL)
+ if (source)
{
e.type = g_strdup_vprintf (format, args);
e.source = BONOBO_OBJREF (source);
e.detail1 = detail1;
e.detail2 = detail2;
+ if (any) e.any_data = *any;
+ else spi_init_any_nil (&e.any_data);
#ifdef SPI_BRIDGE_DEBUG
s = Accessibility_Accessible__get_name (BONOBO_OBJREF (source), &ev);
e.type, e.detail1, e.detail2, s);
CORBA_free (s);
#endif
-
- Accessibility_Registry_notifyEvent (registry, &e, &ev);
+ CORBA_exception_init (&ev);
+ Accessibility_Registry_notifyEvent (spi_atk_bridge_get_registry (),
+ &e, &ev);
+#ifdef SPI_BRIDGE_DEBUG
+ if (ev._major != CORBA_NO_EXCEPTION)
+ g_warning ("error emitting event %s, (%d) %s",
+ e.type,
+ ev._major,
+ CORBA_exception_id(&ev));
+#endif
+ if (BONOBO_EX (&ev)) registry_died = TRUE;
Accessibility_Accessible_unref (e.source, &ev);
-
+
CORBA_exception_free (&ev);
-
+
g_free (e.type);
}
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);
- fprintf (stderr, "Received (property) signal %s:%s:%s from object %s (gail %s)\n",
- g_type_name (signal_query.itype), name, values->property_name, s, s2);
+ DBG (2, g_message ("Received (property) signal %s:%s:%s from object %s (gail %s)\n",
+ g_type_name (signal_query.itype), name, values->property_name, s, s2));
#endif
gobject = g_value_get_object (param_values + 0);
values = (AtkPropertyValues*) g_value_get_pointer (param_values + 1);
- spi_atk_emit_eventv (gobject, 0, 0, "object:property-change:%s", values->property_name);
+ spi_atk_emit_eventv (gobject, 0, 0, NULL,
+ "object:property-change:%s", values->property_name);
return TRUE;
}
spi_atk_emit_eventv (gobject,
detail1,
0,
+ NULL,
type);
g_free (property_name);
g_free (type);
return TRUE;
}
-
static void
spi_init_keystroke_from_atk_key_event (Accessibility_DeviceEvent *keystroke,
AtkKeyEventStruct *event)
{
CORBA_boolean result;
Accessibility_DeviceEvent key_event;
- Accessibility_DeviceEventController controller;
-
- if (BONOBO_EX (&ev))
- g_warning ("failure: pre-listener get dec\n");
- controller =
- Accessibility_Registry_getDeviceEventController (registry, &ev);
+ CORBA_exception_init (&ev);
- if (BONOBO_EX (&ev))
- {
- g_warning ("failure: no deviceeventcontroller found\n");
- CORBA_exception_free (&ev);
- result = FALSE;
- }
- else
- {
-
- spi_init_keystroke_from_atk_key_event (&key_event, event);
+ spi_init_keystroke_from_atk_key_event (&key_event, event);
- result = Accessibility_DeviceEventController_notifyListenersSync (
- controller, &key_event, &ev);
+ result = Accessibility_DeviceEventController_notifyListenersSync (
+ spi_atk_bridget_get_dec (), &key_event, &ev);
- CORBA_exception_free (&ev);
- }
+ CORBA_exception_free (&ev);
return result;
}
GObject *gobject;
GSignalQuery signal_query;
const gchar *name;
+ const gchar *detail;
+ CORBA_any any;
+ CORBA_Object c_obj;
+ char *sp = NULL;
+ AtkObject *ao;
gint detail1 = 0, detail2 = 0;
+ SpiAccessible *s_ao = NULL;
#ifdef SPI_BRIDGE_DEBUG
const gchar *s, *s2;
-#endif
+#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);
+ else
+ detail = NULL;
#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);
+ 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
-
- gobject = g_value_get_object (param_values + 0);
- if (G_VALUE_TYPE (param_values + 1) == G_TYPE_INT)
- detail1 = g_value_get_int (param_values + 1);
- if (G_VALUE_TYPE (param_values + 2) == G_TYPE_INT)
- detail2 = g_value_get_int (param_values + 2);
- spi_atk_emit_eventv (gobject, detail1, detail2, "object:%s", name);
+ gobject = g_value_get_object (param_values + 0);
- return TRUE;
-}
+ if (signal_query.signal_id == atk_signal_active_descendant_changed)
+ {
+ gpointer child = g_value_get_pointer (param_values + 1);
+
+ g_return_val_if_fail (ATK_IS_OBJECT (child), TRUE);
+
+ ao = ATK_OBJECT (child);
+
+ detail1 = atk_object_get_index_in_parent (ao);
+ s_ao = spi_accessible_new (ao);
+ c_obj = BONOBO_OBJREF (s_ao);
+ spi_init_any_object (&any, &c_obj);
+ }
+ else if (signal_query.signal_id == atk_signal_link_selected)
+ {
+ if (G_VALUE_TYPE (param_values + 1) == G_TYPE_INT)
+ detail1 = g_value_get_int (param_values + 1);
+ spi_init_any_nil (&any);
+ }
+ else if ((signal_query.signal_id == atk_signal_children_changed) && gobject)
+ {
+ ao = atk_object_ref_accessible_child (ATK_OBJECT (gobject),
+ detail1);
+ if (ao)
+ {
+ s_ao = spi_accessible_new (ao);
+ c_obj = BONOBO_OBJREF (s_ao);
+ spi_init_any_object (&any, &c_obj);
+ g_object_unref (ao);
+ }
+ else
+ {
+ spi_init_any_nil (&any);
+ }
+ }
+ 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 (gobject),
+ detail1,
+ detail1+detail2);
+ spi_init_any_string (&any, &sp);
+ }
+ else
+ {
+ spi_init_any_nil (&any);
+ }
+ }
+ if (detail)
+ spi_atk_emit_eventv (gobject, detail1, detail2, &any,
+ "object:%s:%s", name, detail);
+ else
+ spi_atk_emit_eventv (gobject, detail1, detail2, &any,
+ "object:%s", name);
+ if (sp)
+ g_free (sp);
+
+ return TRUE;
+}
static gboolean
spi_atk_bridge_window_event_listener (GSignalInvocationHint *signal_hint,
- guint n_param_values,
- const GValue *param_values,
- gpointer data)
+ guint n_param_values,
+ const GValue *param_values,
+ gpointer data)
{
GObject *gobject;
GSignalQuery signal_query;
- const gchar *name;
+ CORBA_any any;
+ const gchar *name, *s;
#ifdef SPI_BRIDGE_DEBUG
- const gchar *s, *s2;
+ const gchar *s2;
#endif
g_signal_query (signal_hint->signal_id, &signal_query);
fprintf (stderr, "Received signal %s:%s from object %s (gail %s)\n",
g_type_name (signal_query.itype), name, s ? s : "<NULL>" , s2);
#endif
-
+
gobject = g_value_get_object (param_values + 0);
- spi_atk_emit_eventv (gobject, 0, 0, "window:%s", name);
+ s = atk_object_get_name (ATK_OBJECT (gobject));
+ spi_init_any_string (&any, (char **) &s);
+
+ spi_atk_emit_eventv (gobject, 0, 0, &any,
+ "window:%s", name);
return TRUE;
}