* AT-SPI - Assistive Technology Service Provider Interface
* (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
*
- * Copyright 2001, 2002 Sun Microsystems Inc.,
- * Copyright 2001, 2002 Ximian, 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
* Boston, MA 02111-1307, USA.
*/
+#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <atk/atkobject.h>
#include <atk/atknoopobject.h>
#include <libspi/Accessibility.h>
+#include <libspi/spi-private.h>
#include "accessible.h"
#include "application.h"
#define DBG(a,b) if(_dbg>=(a))b
static int _dbg = 0;
-static char *spi_nil_string = "";
-
static CORBA_Environment ev;
-static Accessibility_Registry registry = NULL;
+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 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_property_changed;
-*/
+static gboolean atk_listeners_registered = FALSE;
+static gint toplevels = 0;
static guint atk_signal_text_changed;
-static guint atk_signal_child_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_text_selection_changed;
- static guint atk_signal_active_descendant_changed;
static guint atk_signal_row_reordered;
static guint atk_signal_row_inserted;
static guint atk_signal_row_deleted;
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_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_deregister_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,
gpointer data);
static gint spi_atk_bridge_key_listener (AtkKeyEventStruct *event,
gpointer data);
+static void spi_atk_tidy_windows (void);
+static void deregister_application (BonoboObject *app);
+static void reinit_register_vars (void);
/* For automatic libgnome init */
extern void gnome_accessibility_module_init (void);
static void
spi_atk_bridge_init_event_type_consts ()
{
- atk_signal_child_changed = g_signal_lookup ("child_changed",
+ static gboolean done = FALSE;
+
+ if (done)
+ return;
+
+ 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);
+ atk_signal_text_selection_changed = g_signal_lookup ("text_selection_changed",
+ ATK_TYPE_TEXT);
+ done = TRUE;
}
static int
if (bonobo_activation_iid_get ())
{
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);
+ 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);
}
else
{
spi_atk_bridge_do_registration ();
+ spi_atk_bridge_init_event_type_consts ();
}
- spi_atk_bridge_init_event_type_consts ();
-
return 0;
}
guint index,
AtkObject *child)
{
- g_signal_handler_disconnect (object, toplevel_handler);
- spi_atk_bridge_do_registration ();
+ if (toplevels == 0)
+ {
+ spi_atk_bridge_do_registration ();
+ spi_atk_bridge_init_event_type_consts ();
+ }
+ toplevels++;
+}
+
+static void
+spi_atk_bridge_toplevel_removed (AtkObject *object,
+ guint index,
+ AtkObject *child)
+{
+ BonoboObject *app = (BonoboObject *) this_app;
+
+ toplevels--;
+ if (toplevels == 0)
+ {
+ deregister_application (app);
+ spi_atk_deregister_event_listeners ();
+ reinit_register_vars ();
+ }
+ if (toplevels < 0)
+ {
+ g_warning ("More toplevels removed than added\n");
+ toplevels = 0;
+ }
}
static void
}
static Accessibility_Registry
-spi_atk_bridge_get_registry ()
+spi_atk_bridge_get_registry (void)
{
CORBA_Environment ev;
- if (registry_died || (registry == NULL)) {
+ if (registry_died || (registry == CORBA_OBJECT_NIL)) {
CORBA_exception_init (&ev);
if (registry_died)
DBG (1, g_warning ("registry died! restarting..."));
return registry;
}
+static Accessibility_DeviceEventController
+spi_atk_bridget_get_dec (void)
+{
+ CORBA_Environment ev;
+
+ 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
gtk_module_init (gint *argc, gchar **argv[])
{
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
+spi_atk_deregister_event_listeners (void)
+{
+ gint i;
+ guint id;
+
+ if (!atk_listeners_registered)
+ return;
+
+ atk_listeners_registered = FALSE;
+
+ for (i = 0; i < listener_ids->len; i++)
+ {
+ id = g_array_index (listener_ids, guint, i);
+ atk_remove_global_event_listener (id);
+ }
+ g_array_free (listener_ids, TRUE);
+ listener_ids = NULL;
+
+ atk_remove_focus_tracker (atk_bridge_focus_tracker_id);
+ atk_bridge_focus_tracker_id = 0;
+
+ atk_remove_key_event_listener (atk_bridge_key_event_listener_id);
+ atk_bridge_key_event_listener_id = 0;
+}
+
+static void
deregister_application (BonoboObject *app)
{
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);
this_app = NULL;
/*
+ * 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.
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_Accessible_unref (e.source, &ev);
+ if (BONOBO_EX (&ev))
+ registry_died = TRUE;
+
+ bonobo_object_unref (source);
CORBA_exception_free (&ev);
}
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);
g_warning ("Emitting event '%s' (%lu, %lu) on %s",
{
AtkPropertyValues *values;
GObject *gobject;
+ const gchar *prop_name;
+ CORBA_any any;
+ const gchar *sp = NULL;
+ AtkObject *ao;
+ SpiAccessible *s_ao = NULL;
+ CORBA_Object c_obj;
+ gint i;
#ifdef SPI_BRIDGE_DEBUG
GSignalQuery signal_query;
gobject = g_value_get_object (param_values + 0);
values = (AtkPropertyValues*) g_value_get_pointer (param_values + 1);
- spi_atk_emit_eventv (gobject, 0, 0, NULL,
- "object:property-change:%s", values->property_name);
+ prop_name = values->property_name;
+ if (strcmp (prop_name, "accessible-name") == 0)
+ {
+ sp = atk_object_get_name (ATK_OBJECT (gobject));
+ spi_init_any_string (&any, (gchar **)&sp);
+ }
+ else if (strcmp (prop_name, "accessible-description") == 0)
+ {
+ sp = atk_object_get_description (ATK_OBJECT (gobject));
+ spi_init_any_string (&any, (gchar **)&sp);
+ }
+ else if (strcmp (prop_name, "accessible-parent") == 0)
+ {
+ ao = atk_object_get_parent (ATK_OBJECT (gobject));
+ if (ao)
+ {
+ s_ao = spi_accessible_new (ao);
+ c_obj = BONOBO_OBJREF (s_ao);
+ spi_init_any_object (&any, &c_obj);
+ }
+ else
+ {
+ spi_init_any_nil (&any);
+ }
+ }
+ else if (strcmp (prop_name, "accessible-table-summary") == 0)
+ {
+ ao = atk_table_get_summary (ATK_TABLE (gobject));
+ if (ao)
+ {
+ s_ao = spi_accessible_new (ao);
+ c_obj = BONOBO_OBJREF (s_ao);
+ spi_init_any_object (&any, &c_obj);
+ }
+ else
+ {
+ spi_init_any_nil (&any);
+ }
+ }
+ 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 (gobject), i);
+ if (ao)
+ {
+ s_ao = spi_accessible_new (ao);
+ c_obj = BONOBO_OBJREF (s_ao);
+ spi_init_any_object (&any, &c_obj);
+ }
+ else
+ {
+ spi_init_any_nil (&any);
+ }
+ }
+ 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 (gobject), i);
+ if (ao)
+ {
+ s_ao = spi_accessible_new (ao);
+ c_obj = BONOBO_OBJREF (s_ao);
+ spi_init_any_object (&any, &c_obj);
+ }
+ else
+ {
+ spi_init_any_nil (&any);
+ }
+ }
+ 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 (gobject), i);
+ spi_init_any_string (&any, (gchar **)&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 (gobject), i);
+ spi_init_any_string (&any, (gchar **)&sp);
+ }
+ else if (strcmp (prop_name, "accessible-table-caption-object") == 0)
+ {
+ ao = atk_table_get_caption (ATK_TABLE (gobject));
+ sp = atk_object_get_name (ao);
+ spi_init_any_string (&any, (gchar **)&sp);
+ }
+ else
+ {
+ spi_init_any_nil (&any);
+ }
+
+ spi_atk_emit_eventv (gobject, 0, 0, &any,
+ "object:property-change:%s", prop_name);
+
return TRUE;
}
return TRUE;
}
-
static void
spi_init_keystroke_from_atk_key_event (Accessibility_DeviceEvent *keystroke,
AtkKeyEventStruct *event)
keystroke->modifiers = (CORBA_unsigned_short) (event->state & 0xFFFF);
if (event->string)
{
+ gunichar c;
+
keystroke->event_string = CORBA_string_dup (event->string);
- keystroke->is_text = CORBA_TRUE;
+ c = g_utf8_get_char_validated (event->string, -1);
+ if (c > 0 && g_unichar_isprint (c))
+ keystroke->is_text = CORBA_TRUE;
+ else
+ keystroke->is_text = CORBA_FALSE;
}
else
{
{
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 (
- spi_atk_bridge_get_registry (), &ev);
+ CORBA_exception_init (&ev);
- if (BONOBO_EX (&ev))
- {
- g_warning ("failure: no deviceeventcontroller found\n");
- CORBA_exception_free (&ev);
- registry_died = TRUE;
- 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 (
+ spi_atk_bridget_get_dec (), &key_event, &ev);
- result = Accessibility_DeviceEventController_notifyListenersSync (
- controller, &key_event, &ev);
-
- bonobo_object_release_unref (controller, &ev);
- CORBA_exception_free (&ev);
- }
+ CORBA_exception_free (&ev);
return result;
}
-
-static void
-spi_atk_signal_emit_event (const GObject *gobject,
- const GSignalQuery *signal_query,
- long detail1,
- long detail2,
- const gchar *name,
- const gchar *detail)
-{
- CORBA_any any;
- CORBA_char *sp = NULL;
- AtkObject *ao;
-
- 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);
- }
-#ifdef EXTENDED_OBJECT_EVENTS_ARE_WORKING
- else if ((signal_query->signal_id == atk_signal_child_changed) && gobject)
- {
- ao = atk_object_ref_accessible_child (ATK_OBJECT (gobject),
- detail1);
- if (ao)
- {
- spi_init_any_object (&any, ao);
- atk_object_unref (ao);
- }
- else
- {
- spi_init_any_nil (&any);
- }
- }
-#endif
- 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);
-}
-
-
-
static gboolean
spi_atk_bridge_signal_listener (GSignalInvocationHint *signal_hint,
guint n_param_values,
GSignalQuery signal_query;
const gchar *name;
const gchar *detail;
- CORBA_char *sp;
-
+ CORBA_any any;
+ CORBA_Object c_obj;
+ char *sp = NULL;
+ AtkObject *ao;
+ AtkText *text;
gint detail1 = 0, detail2 = 0;
+ SpiAccessible *s_ao = NULL;
#ifdef SPI_BRIDGE_DEBUG
const gchar *s, *s2;
#endif
#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_signal_emit_event (gobject, &signal_query,
- detail2, detail2,
- name, detail);
+
+ 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 if (signal_query.signal_id == atk_signal_text_selection_changed)
+ {
+ text = ATK_TEXT (gobject);
+
+ /* Return NULL as the selected string */
+ spi_init_any_nil (&any);
+ }
+ 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;
}
gobject = g_value_get_object (param_values + 0);
s = atk_object_get_name (ATK_OBJECT (gobject));
- spi_init_any_string (&any, &s);
+ spi_init_any_string (&any, (char **) &s);
spi_atk_emit_eventv (gobject, 0, 0, &any,
"window:%s", name);
return TRUE;
}
+
+static void
+spi_atk_tidy_windows (void)
+{
+ AtkObject *root;
+ gint n_children;
+ gint i;
+
+ root = atk_get_root ();
+ n_children = atk_object_get_n_accessible_children (root);
+ for (i = 0; i < n_children; i++)
+ {
+ AtkObject *child;
+ AtkStateSet *stateset;
+ CORBA_any any;
+ const gchar *name;
+
+ child = atk_object_ref_accessible_child (root, i);
+ stateset = atk_object_ref_state_set (child);
+
+ name = atk_object_get_name (child);
+ spi_init_any_string (&any, (char**) &name);
+ if (atk_state_set_contains_state (stateset, ATK_STATE_ACTIVE))
+ {
+ spi_atk_emit_eventv (G_OBJECT (child), 0, 0, &any, "window:deactivate");
+ }
+ g_free (stateset);
+
+ spi_atk_emit_eventv (G_OBJECT (child), 0, 0, &any, "window:destroy");
+ g_object_unref (child);
+ }
+}
+
+static void
+reinit_register_vars (void)
+{
+ registry = CORBA_OBJECT_NIL;
+ device_event_controller = CORBA_OBJECT_NIL;
+ this_app = NULL;
+}
+
projects / platform / core / uifw / at-spi2-atk.git / blobdiff