* AT-SPI - Assistive Technology Service Provider Interface
* (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
*
- * Copyright 2001 Sun Microsystems Inc.
+ * Copyright 2001, 2002 Sun Microsystems Inc.,
+ * Copyright 2001, 2002 Ximian, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
#undef SPI_BRIDGE_DEBUG
+#define DBG(a,b) if(_dbg>=(a))b
+
+static int _dbg;
+
static CORBA_Environment ev;
static Accessibility_Registry registry = NULL;
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 guint atk_signal_text_changed;
+static guint atk_signal_child_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_reordered;
+ static guint atk_signal_column_inserted;
+ static guint atk_signal_column_deleted;
+*/
+
+#define ATK_BRIDGE_RESERVED_CONTEXT_SIZE 16
+
+typedef enum {
+ ATK_BRIDGE_CONTEXT_TYPE_NONE = 0,
+ ATK_BRIDGE_CONTEXT_TYPE_STRING,
+ ATK_BRIDGE_CONTEXT_TYPE_OBJECT
+} AtkBridgeEventContextType;
+
+typedef union {
+ gchar *string;
+ AtkObject *object;
+ gpointer *foo;
+} AtkBridgeEventContextData;
+
+typedef struct {
+ AtkBridgeEventContextType _type;
+ AtkBridgeEventContextData _data;
+} AtkBridgeEventContext;
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);
extern void gnome_accessibility_module_init (void);
extern void gnome_accessibility_module_shutdown (void);
+static void
+atk_bridge_init_event_type_consts ()
+{
+ atk_signal_child_changed = g_signal_lookup ("child_changed",
+ ATK_TYPE_OBJECT);
+ atk_signal_text_changed = g_signal_lookup ("text_changed",
+ ATK_TYPE_TEXT);
+}
+
static int
atk_bridge_init (gint *argc, gchar **argv[])
{
- CORBA_Environment ev;
-
if (atk_bridge_initialized)
{
return 0;
}
atk_bridge_initialized = TRUE;
+ _dbg = g_ascii_digit_value (g_getenv ("AT_SPI_DEBUG"));
+
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;
+ {
+ 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 ();
+ }
+
+ atk_bridge_init_event_type_consts ();
+
+ return 0;
+}
+
+static void
+spi_atk_bridge_do_registration (void)
+{
+ CORBA_Environment ev;
CORBA_exception_init(&ev);
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);
- fprintf (stderr, "Application registered & listening\n");
+ DBG (1, g_message ("Application registered & listening\n"));
- return 0;
+}
+
+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
if (registry_died || (registry == NULL)) {
CORBA_exception_init (&ev);
- if (registry_died) g_warning ("registry died! restarting...");
+ if (registry_died)
+ DBG (1, g_warning ("registry died! restarting..."));
registry = bonobo_activation_activate_from_id (
"OAFIID:Accessibility_Registry:1.0", 0, NULL, &ev);
{
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"))
{
}
static void
+atk_bridge_event_context_init (CORBA_any *any,
+ AtkBridgeEventContext *ctx)
+{
+ SpiAccessible *accessible;
+ if (ctx)
+ {
+ switch (ctx->_type)
+ {
+ /* FIXME
+ case ATK_BRIDGE_CONTEXT_TYPE_OBJECT:
+ accessible = spi_accessible_new (ctx->_data.object);
+ spi_init_any_object (any, BONOBO_OBJREF (accessible));
+ break;
+ */
+ case ATK_BRIDGE_CONTEXT_TYPE_STRING:
+ spi_init_any_string (any, &ctx->_data.string);
+ break;
+ default:
+ spi_init_any_nil (any);
+ }
+ }
+ else
+ {
+ spi_init_any_nil (any);
+ }
+}
+
+static void
spi_atk_bridge_focus_tracker (AtkObject *object)
{
SpiAccessible *source;
e.source = BONOBO_OBJREF (source);
e.detail1 = 0;
e.detail2 = 0;
-
+ spi_init_any_nil (&e.any_data);
Accessibility_Registry_notifyEvent (spi_atk_bridge_get_registry (), &e, &ev);
if (BONOBO_EX (&ev)) registry_died = TRUE;
CORBA_exception_free (&ev);
}
+static
+AtkBridgeEventContext *
+spi_atk_bridge_event_context_create (GObject *gobject,
+ long detail1,
+ long detail2,
+ GSignalQuery *signal_query,
+ const gchar *detail)
+{
+ AtkBridgeEventContext *ctx = g_new0 (AtkBridgeEventContext, 1);
+ /*
+ if (signal_query->signal_id == atk_signal_child_changed)
+ {
+ ctx->_type = ATK_BRIDGE_CONTEXT_TYPE_OBJECT;
+ ctx->_data.object = atk_object_ref_accessible_child (ATK_OBJECT (gobject),
+ (gint) detail1);
+ }
+ else */ if (signal_query->signal_id == atk_signal_text_changed)
+ {
+ ctx->_type = ATK_BRIDGE_CONTEXT_TYPE_STRING;
+ ctx->_data.string = atk_text_get_text (ATK_TEXT (gobject),
+ (gint) detail1,
+ (gint) detail1+detail2);
+ }
+ else
+ {
+ ctx->_type = ATK_BRIDGE_CONTEXT_TYPE_NONE;
+ }
+ return ctx;
+}
+
static void
-spi_atk_emit_eventv (GObject *gobject,
- unsigned long detail1,
- unsigned long detail2,
+spi_atk_bridge_event_context_free (AtkBridgeEventContext *ctx)
+{
+ if (ctx->_type == ATK_BRIDGE_CONTEXT_TYPE_OBJECT)
+ g_object_unref (ctx->_data.object);
+ g_free (ctx);
+}
+
+static void
+spi_atk_emit_eventv (GObject *gobject,
+ unsigned long detail1,
+ unsigned long detail2,
+ AtkBridgeEventContext *context,
const char *format, ...)
{
va_list args;
e.source = BONOBO_OBJREF (source);
e.detail1 = detail1;
e.detail2 = detail2;
-
#ifdef SPI_BRIDGE_DEBUG
s = Accessibility_Accessible__get_name (BONOBO_OBJREF (source), &ev);
g_warning ("Emitting event '%s' (%lu, %lu) on %s",
e.type, e.detail1, e.detail2, s);
CORBA_free (s);
#endif
-
+ CORBA_exception_init (&ev);
+ atk_bridge_event_context_init (&e.any_data, context);
Accessibility_Registry_notifyEvent (spi_atk_bridge_get_registry (), &e, &ev);
+ /* I haven't freed any_data._value when it's a char*, does it leak ? */
#ifdef SPI_BRIDGE_DEBUG
if (ev._major != CORBA_NO_EXCEPTION)
g_warning ("error emitting event %s, (%d) %s",
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);
GSignalQuery signal_query;
const gchar *name;
const gchar *detail;
+ AtkBridgeEventContext *ctx = NULL;
gint detail1 = 0, detail2 = 0;
#ifdef SPI_BRIDGE_DEBUG
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);
-
+
+ /* build some event context data, depending on the type */
+ ctx = spi_atk_bridge_event_context_create (gobject,
+ detail1, detail2,
+ &signal_query,
+ detail);
+
if (detail)
- spi_atk_emit_eventv (gobject, detail1, detail2, "object:%s:%s", name, detail);
+ spi_atk_emit_eventv (gobject, detail1, detail2, ctx,
+ "object:%s:%s", name, detail);
else
- spi_atk_emit_eventv (gobject, detail1, detail2, "object:%s", name);
+ spi_atk_emit_eventv (gobject, detail1, detail2, ctx,
+ "object:%s", name);
+
+ if (ctx)
+ spi_atk_bridge_event_context_free (ctx);
return TRUE;
}
{
GObject *gobject;
GSignalQuery signal_query;
- const gchar *name;
+ AtkBridgeEventContext ctx;
+
+ 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);
-
+ ctx._type = ATK_BRIDGE_CONTEXT_TYPE_STRING;
+ s = atk_object_get_name (ATK_OBJECT (gobject));
+ ctx._data.string = (gchar *) s;
+ /* cast from const silences compiler */
+ spi_atk_emit_eventv (gobject, 0, 0, &ctx, "window:%s", name);
+ /* don't free the context, it's on the stack */
return TRUE;
}
projects / platform / core / uifw / at-spi2-atk.git / blobdiff