#include <stdio.h>
#include <stdlib.h>
+#include <stdarg.h>
#include <libbonobo.h>
#include <orbit/orbit.h>
#include <atk/atk.h>
#include <atk/atkobject.h>
+#include <atk/atknoopobject.h>
#include <libspi/Accessibility.h>
#include "accessible.h"
#include "application.h"
-typedef struct _ArgStruct ArgStruct;
+#include <bonobo-activation/bonobo-activation-register.h>
-struct _ArgStruct {
- gint c;
- char **v;
-};
+#undef SPI_BRIDGE_DEBUG
static CORBA_Environment ev;
static Accessibility_Registry registry;
+static SpiApplication *this_app = NULL;
-static gboolean bridge_register_app (gpointer p);
-static void bridge_focus_tracker (AtkObject *object);
+static void spi_atk_bridge_exit_func (void);
+static void spi_atk_register_event_listeners (void);
+static gboolean spi_atk_bridge_idle_init (gpointer user_data);
+static void spi_atk_bridge_focus_tracker (AtkObject *object);
+static gboolean spi_atk_bridge_property_event_listener (GSignalInvocationHint *signal_hint,
+ guint n_param_values,
+ const GValue *param_values,
+ gpointer data);
+static gboolean
+spi_atk_bridge_window_event_listener (GSignalInvocationHint *signal_hint,
+ guint n_param_values,
+ const GValue *param_values,
+ gpointer data);
+static gboolean spi_atk_bridge_signal_listener (GSignalInvocationHint *signal_hint,
+ guint n_param_values,
+ const GValue *param_values,
+ gpointer data);
+static gint spi_atk_bridge_key_listener (AtkKeyEventStruct *event,
+ gpointer data);
-int
-gtk_module_init(gint argc, char* argv[])
-{
- ArgStruct *args = (ArgStruct *) g_new0(ArgStruct, 1);
- args->c = argc;
- args->v = argv;
- g_idle_add (bridge_register_app, args);
-}
+/* For automatic libgnome init */
+extern void gnome_accessibility_module_init (void);
+extern void gnome_accessibility_module_shutdown (void);
-static gboolean
-bridge_register_app (gpointer gp)
-{
- CORBA_Object oclient;
- AtkObject *atko;
- char *obj_id;
- ArgStruct *args = (ArgStruct *)gp;
+static int atk_bridge_initialized = FALSE;
+static guint atk_bridge_focus_tracker_id = 0;
+static guint atk_bridge_key_event_listener_id = 0;
+static guint idle_init_id = 0;
+static GArray *listener_ids = NULL;
- Application *app;
+/*
+ * These exported symbols are hooked by gnome-program
+ * to provide automatic module initialization and shutdown.
+ */
+extern void gnome_accessibility_module_init (void);
+extern void gnome_accessibility_module_shutdown (void);
- CORBA_exception_init(&ev);
+static int
+atk_bridge_init (gint *argc, gchar **argv[])
+{
+ CORBA_Environment ev;
- if (!bonobo_init (&(args->c), args->v))
+ if (atk_bridge_initialized)
+ {
+ return 0;
+ }
+ atk_bridge_initialized = TRUE;
+
+ if (!bonobo_init (argc, argv ? *argv : NULL))
{
g_error ("Could not initialize Bonobo");
}
- /* Create the accesssible application server object */
- app = application_new(atk_get_root ());
+ /*
+ * 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;
- obj_id = "OAFIID:Accessibility_Registry:proto0.1";
+ CORBA_exception_init(&ev);
- oclient = bonobo_activation_activate_from_id (obj_id, 0, NULL, &ev);
- if (ev._major != CORBA_NO_EXCEPTION) {
- fprintf(stderr,
- ("Accessibility app error: exception during registry activation from id: %s\n"),
- CORBA_exception_id(&ev));
- CORBA_exception_free(&ev);
- exit(-1);
- }
+ registry = bonobo_activation_activate_from_id (
+ "OAFIID:Accessibility_Registry:proto0.1", 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 (CORBA_Object_is_nil (oclient, &ev))
+ if (registry == CORBA_OBJECT_NIL)
{
g_error ("Could not locate registry");
}
- registry = (Accessibility_Registry) oclient;
+ bonobo_activate ();
- fprintf(stderr, "About to register application\n");
+ /* Create the accessible application server object */
- bonobo_activate ();
+ this_app = spi_application_new (atk_get_root ());
- /* Register for focus event notifications, and register app with central registry */
- atk_add_focus_tracker (bridge_focus_tracker);
+ fprintf (stderr, "About to register application\n");
Accessibility_Registry_registerApplication (registry,
- bonobo_object_corba_objref (bonobo_object (app)),
+ BONOBO_OBJREF (this_app),
&ev);
+
+ g_atexit (spi_atk_bridge_exit_func);
+
+ idle_init_id = g_idle_add (spi_atk_bridge_idle_init, NULL);
+
+ return 0;
+}
+
+int
+gtk_module_init (gint *argc, gchar **argv[])
+{
+ return atk_bridge_init (argc, argv);
+}
+
+static gboolean
+spi_atk_bridge_idle_init (gpointer user_data)
+{
+ idle_init_id = 0;
+
+ spi_atk_register_event_listeners ();
+
+ fprintf (stderr, "Application registered & listening\n");
+
return FALSE;
}
-static void bridge_focus_tracker (AtkObject *object)
+static void
+add_signal_listener (const char *signal_name)
+{
+ guint id;
+
+ id = atk_add_global_event_listener (
+ spi_atk_bridge_signal_listener, signal_name);
+
+ g_array_append_val (listener_ids, id);
+}
+
+static void
+spi_atk_register_event_listeners (void)
{
- Accessibility_Event *e = g_new0(Accessibility_Event, 1);
- e->type = CORBA_string_dup ("focus:");
- e->target = bonobo_object_corba_objref (bonobo_object (accessible_new (object)));
- e->detail1 = 0;
- e->detail2 = 0;
- Accessibility_Registry_notifyEvent (registry, e, &ev);
+ /*
+ * kludge to make sure the Atk interface types are registered, otherwise
+ * the AtkText signal handlers below won't get registered
+ */
+ guint id;
+ GObject *ao = g_object_new (ATK_TYPE_OBJECT, NULL);
+ AtkObject *bo = atk_no_op_object_new (ao);
+
+ /* Register for focus event notifications, and register app with central registry */
+
+ listener_ids = g_array_sized_new (FALSE, TRUE, sizeof (guint), 16);
+
+ atk_bridge_focus_tracker_id = atk_add_focus_tracker (spi_atk_bridge_focus_tracker);
+
+ id = atk_add_global_event_listener (spi_atk_bridge_property_event_listener,
+ "Gtk:AtkObject:property-change");
+ g_array_append_val (listener_ids, id);
+ id = atk_add_global_event_listener (spi_atk_bridge_window_event_listener,
+ "window:create");
+ g_array_append_val (listener_ids, id);
+ id = atk_add_global_event_listener (spi_atk_bridge_window_event_listener,
+ "window:destroy");
+ g_array_append_val (listener_ids, id);
+ id = atk_add_global_event_listener (spi_atk_bridge_window_event_listener,
+ "window:minimize");
+ g_array_append_val (listener_ids, id);
+ id = atk_add_global_event_listener (spi_atk_bridge_window_event_listener,
+ "window:maximize");
+ g_array_append_val (listener_ids, id);
+ id = atk_add_global_event_listener (spi_atk_bridge_window_event_listener,
+ "window:restore");
+ g_array_append_val (listener_ids, id);
+ id = atk_add_global_event_listener (spi_atk_bridge_window_event_listener,
+ "window:activate");
+ g_array_append_val (listener_ids, id);
+ id = atk_add_global_event_listener (spi_atk_bridge_window_event_listener,
+ "window:deactivate");
+ g_array_append_val (listener_ids, id);
+
+ add_signal_listener ("Gtk:AtkObject:state-change");
+ add_signal_listener ("Gtk:AtkObject:children-changed");
+ add_signal_listener ("Gtk:AtkObject:visible-data-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:AtkText:text-caret-moved");
+ add_signal_listener ("Gtk:AtkTable:row-inserted");
+ add_signal_listener ("Gtk:AtkTable:row-reordered");
+ add_signal_listener ("Gtk:AtkTable:row-deleted");
+ add_signal_listener ("Gtk:AtkTable:column-inserted");
+ add_signal_listener ("Gtk:AtkTable:column-reordered");
+ add_signal_listener ("Gtk:AtkTable:column-deleted");
+ add_signal_listener ("Gtk:AtkTable:model-changed");
+/*
+ * May add the following listeners to implement preemptive key listening for GTK+
+ *
+ * atk_add_global_event_listener (spi_atk_bridge_widgetkey_listener, "Gtk:GtkWidget:key-press-event");
+ * atk_add_global_event_listener (spi_atk_bridge_widgetkey_listener, "Gtk:GtkWidget:key-release-event");
+ */
+ atk_bridge_key_event_listener_id = atk_add_key_event_listener (
+ spi_atk_bridge_key_listener, NULL);
+
+ g_object_unref (G_OBJECT (bo));
+ g_object_unref (ao);
+}
+
+static void
+deregister_application (BonoboObject *app)
+{
+ Accessibility_Registry_deregisterApplication (
+ registry, BONOBO_OBJREF (app), &ev);
+
+ registry = bonobo_object_release_unref (registry, &ev);
+
+ app = bonobo_object_unref (app);
+}
+
+static void
+spi_atk_bridge_exit_func (void)
+{
+ BonoboObject *app = (BonoboObject *) this_app;
+
+ fprintf (stderr, "exiting bridge\n");
+
+ if (!app)
+ {
+ return;
+ }
+ this_app = NULL;
+
+ /*
+ * FIXME: this may be incorrect for apps that do their own bonobo
+ * shutdown, until we can explicitly shutdown to get the ordering
+ * right.
+ */
+ if (!bonobo_is_initialized ())
+ {
+ fprintf (stderr, "Re-initializing bonobo\n");
+ g_assert (bonobo_init (0, NULL));
+ g_assert (bonobo_activate ());
+ }
+
+ deregister_application (app);
+
+ fprintf (stderr, "bridge exit func complete.\n");
+
+ if (g_getenv ("AT_BRIDGE_SHUTDOWN"))
+ {
+ g_assert (!bonobo_debug_shutdown ());
+ }
+}
+
+void
+gnome_accessibility_module_init (void)
+{
+ atk_bridge_init (NULL, NULL);
+
+ g_print("Atk Accessibilty bridge initialized\n");
+}
+
+void
+gnome_accessibility_module_shutdown (void)
+{
+ BonoboObject *app = (BonoboObject *) this_app;
+
+ if (!atk_bridge_initialized)
+ {
+ return;
+ }
+ atk_bridge_initialized = FALSE;
+ this_app = NULL;
+
+ g_print("Atk Accessibilty bridge shutdown\n");
+
+ if (idle_init_id)
+ {
+ g_source_remove (idle_init_id);
+ idle_init_id = 0;
+ }
+ else
+ {
+ int i;
+ GArray *ids = listener_ids;
+
+ listener_ids = NULL;
+ atk_remove_focus_tracker (atk_bridge_focus_tracker_id);
+
+ for (i = 0; ids && i < ids->len; i++)
+ {
+ atk_remove_global_event_listener (g_array_index (ids, guint, i));
+ }
+
+ atk_remove_key_event_listener (atk_bridge_key_event_listener_id);
+ }
+
+ deregister_application (app);
+}
+
+static void
+spi_atk_bridge_focus_tracker (AtkObject *object)
+{
+ SpiAccessible *source;
+ Accessibility_Event e;
+
+ source = spi_accessible_new (object);
+
+ e.type = "focus:";
+ e.source = BONOBO_OBJREF (source);
+ e.detail1 = 0;
+ e.detail2 = 0;
+
+ Accessibility_Registry_notifyEvent (registry, &e, &ev);
+
+ CORBA_exception_free (&ev);
+}
+
+static void
+spi_atk_emit_eventv (GObject *gobject,
+ unsigned long detail1,
+ unsigned long detail2,
+ const char *format, ...)
+{
+ va_list args;
+ Accessibility_Event e;
+ SpiAccessible *source;
+ AtkObject *aobject;
+#ifdef SPI_BRIDGE_DEBUG
+ CORBA_string s;
+#endif
+
+ va_start (args, format);
+
+ if (ATK_IS_IMPLEMENTOR (gobject))
+ {
+ aobject = atk_implementor_ref_accessible (ATK_IMPLEMENTOR (gobject));
+ source = spi_accessible_new (aobject);
+ g_object_unref (G_OBJECT (aobject));
+ }
+ else if (ATK_IS_OBJECT (gobject))
+ {
+ aobject = ATK_OBJECT (gobject);
+ source = spi_accessible_new (aobject);
+ }
+ else
+ {
+ aobject = NULL;
+ source = NULL;
+ g_error ("received property-change event from non-AtkImplementor");
+ }
+
+ if (source != NULL)
+ {
+ e.type = g_strdup_vprintf (format, 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
+
+ Accessibility_Registry_notifyEvent (registry, &e, &ev);
+
+ CORBA_exception_free (&ev);
+
+ g_free (e.type);
+ }
+
+ va_end (args);
+}
+
+static gboolean
+spi_atk_bridge_property_event_listener (GSignalInvocationHint *signal_hint,
+ guint n_param_values,
+ const GValue *param_values,
+ gpointer data)
+{
+ AtkPropertyValues *values;
+ GObject *gobject;
+
+#ifdef SPI_BRIDGE_DEBUG
+ GSignalQuery signal_query;
+ const gchar *name;
+ const gchar *s, *s2;
+
+ g_signal_query (signal_hint->signal_id, &signal_query);
+ name = signal_query.signal_name;
+
+ 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);
+
+#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);
+
+ return TRUE;
+}
+
+#if THIS_WILL_EVER_BE_USED
+static gboolean
+spi_atk_bridge_state_event_listener (GSignalInvocationHint *signal_hint,
+ guint n_param_values,
+ const GValue *param_values,
+ gpointer data)
+{
+ GObject *gobject;
+ AtkPropertyValues *values;
+#ifdef SPI_BRIDGE_DEBUG
+ GSignalQuery signal_query;
+ const gchar *name;
+
+ g_signal_query (signal_hint->signal_id, &signal_query);
+ name = signal_query.signal_name;
+ fprintf (stderr, "Received (state) signal %s:%s\n",
+ g_type_name (signal_query.itype), name);
+#endif
+
+ gobject = g_value_get_object (param_values + 0);
+ values = (AtkPropertyValues*) g_value_get_pointer (param_values + 1);
+
+ spi_atk_emit_eventv (gobject,
+ (unsigned long) values->old_value.data[0].v_ulong,
+ (unsigned long) values->new_value.data[0].v_ulong,
+ "object:%s:?", values->property_name);
+
+ return TRUE;
+}
+#endif
+
+static void
+spi_init_keystroke_from_atk_key_event (Accessibility_DeviceEvent *keystroke,
+ AtkKeyEventStruct *event)
+{
+#ifdef SPI_DEBUG
+ if (event)
+ {
+ g_print ("event %c (%d)\n", (int) event->keyval, (int) event->keycode);
+ }
+ else
+#endif
+ if (!event)
+ {
+ g_print ("WARNING: NULL key event!");
+ }
+
+ keystroke->id = (CORBA_long) event->keyval;
+ keystroke->hw_code = (CORBA_short) event->keycode;
+ keystroke->timestamp = (CORBA_unsigned_long) event->timestamp;
+ keystroke->modifiers = (CORBA_unsigned_short) (event->state & 0xFFFF);
+ if (event->string)
+ {
+ keystroke->event_string = CORBA_string_dup (event->string);
+ keystroke->is_text = CORBA_TRUE;
+ }
+ else
+ {
+ keystroke->event_string = CORBA_string_dup ("");
+ keystroke->is_text = CORBA_FALSE;
+ }
+ switch (event->type)
+ {
+ case (ATK_KEY_EVENT_PRESS):
+ keystroke->type = Accessibility_KEY_PRESSED;
+ break;
+ case (ATK_KEY_EVENT_RELEASE):
+ keystroke->type = Accessibility_KEY_RELEASED;
+ break;
+ default:
+ keystroke->type = 0;
+ break;
+ }
+#if 0
+ g_print ("key_event type %d; val=%d code=%d modifiers=%x name=%s is_text=%d, time=%lx\n",
+ (int) keystroke->type, (int) keystroke->id, (int) keystroke->hw_code,
+ (int) keystroke->modifiers,
+ keystroke->event_string, (int) keystroke->is_text, (unsigned long) keystroke->timestamp);
+#endif
+}
+
+static gint
+spi_atk_bridge_key_listener (AtkKeyEventStruct *event, gpointer data)
+{
+ CORBA_boolean result;
+ Accessibility_DeviceEvent key_event;
+ Accessibility_DeviceEventController controller =
+ Accessibility_Registry_getDeviceEventController (registry, &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);
+
+ result = Accessibility_DeviceEventController_notifyListenersSync (
+ controller, &key_event, &ev);
+
+ CORBA_exception_free (&ev);
+ }
+
+ return result;
+}
+
+static gboolean
+spi_atk_bridge_signal_listener (GSignalInvocationHint *signal_hint,
+ guint n_param_values,
+ const GValue *param_values,
+ gpointer data)
+{
+ GObject *gobject;
+ GSignalQuery signal_query;
+ const gchar *name;
+ gint detail1 = 0, detail2 = 0;
+#ifdef SPI_BRIDGE_DEBUG
+ const gchar *s, *s2;
+#endif
+
+ g_signal_query (signal_hint->signal_id, &signal_query);
+
+ name = signal_query.signal_name;
+
+#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);
+#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);
+
+ return TRUE;
+}
+
+
+
+static gboolean
+spi_atk_bridge_window_event_listener (GSignalInvocationHint *signal_hint,
+ guint n_param_values,
+ const GValue *param_values,
+ gpointer data)
+{
+ GObject *gobject;
+ GSignalQuery signal_query;
+ const gchar *name;
+#ifdef SPI_BRIDGE_DEBUG
+ const gchar *s, *s2;
+#endif
+
+ g_signal_query (signal_hint->signal_id, &signal_query);
+
+ name = signal_query.signal_name;
+
+#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);
+#endif
+
+ gobject = g_value_get_object (param_values + 0);
+ spi_atk_emit_eventv (gobject, 0, 0, "window:%s", name);
+
+ return TRUE;
}
projects / platform / core / uifw / at-spi2-atk.git / blobdiff