X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=atk-bridge%2Fbridge.c;h=2d1bb1e4083c1fe6857f4165c00b95855e420aac;hb=14c750668c8e5c881ac452fecbae505c04b95f25;hp=d4e13456f903087152a572efa76037456fb202cf;hpb=90514dbae344fafd0c05b49425a28a617da1df4e;p=platform%2Fcore%2Fuifw%2Fat-spi2-atk.git diff --git a/atk-bridge/bridge.c b/atk-bridge/bridge.c index d4e1345..2d1bb1e 100644 --- a/atk-bridge/bridge.c +++ b/atk-bridge/bridge.c @@ -22,110 +22,593 @@ #include #include +#include #include #include #include #include +#include #include #include "accessible.h" #include "application.h" -typedef struct _ArgStruct ArgStruct; +#include -struct _ArgStruct { - gint c; - char **v; -}; +#undef SPI_BRIDGE_DEBUG static CORBA_Environment ev; static Accessibility_Registry registry; -static Application *this_app; +static SpiApplication *this_app = NULL; -static gboolean bridge_register_app (gpointer p); -static void bridge_focus_tracker (AtkObject *object); -static void bridge_exit_func(void); +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 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_state_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, gchar **argv[]) -{ - ArgStruct *args = (ArgStruct *) g_new0(ArgStruct, 1); - args->c = *argc; - args->v = *argv; - g_idle_add (bridge_register_app, args); - g_atexit (bridge_exit_func); -} +/* 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) +static int atk_bridge_initialized = FALSE; +static guint atk_bridge_focus_tracker_id = 0; +static guint atk_bridge_key_event_listener_id = 0; +static GArray *listener_ids = NULL; + +/* + * 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); + +static int +atk_bridge_init (gint *argc, gchar **argv[]) { - CORBA_Object oclient; - AtkObject *atko; - char *obj_id; - ArgStruct *args = (ArgStruct *)gp; + CORBA_Environment ev; - CORBA_exception_init(&ev); + if (atk_bridge_initialized) + { + return 0; + } + atk_bridge_initialized = TRUE; - if (!bonobo_init (&(args->c), args->v)) + if (!bonobo_init (argc, argv ? *argv : NULL)) { g_error ("Could not initialize Bonobo"); } - /* Create the accesssible application server object */ - this_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: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 (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 (this_app)), + BONOBO_OBJREF (this_app), &ev); - return FALSE; + + g_atexit (spi_atk_bridge_exit_func); + + spi_atk_register_event_listeners (); + + fprintf (stderr, "Application registered & listening\n"); + + return 0; } -static void bridge_exit_func() +int +gtk_module_init (gint *argc, gchar **argv[]) { + return atk_bridge_init (argc, argv); +} + +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) +{ + /* + * 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); + id = atk_add_global_event_listener (spi_atk_bridge_state_event_listener, + "Gtk:AtkObject:state-change"); + g_array_append_val (listener_ids, id); + + 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"); - Accessibility_Registry_deregisterApplication (registry, - bonobo_object_corba_objref ( - bonobo_object (this_app)), - &ev); + + 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; + int i; + GArray *ids = listener_ids; + + if (!atk_bridge_initialized) + { + return; + } + atk_bridge_initialized = FALSE; + this_app = NULL; + + g_print("Atk Accessibilty bridge shutdown\n"); + + 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 bridge_focus_tracker (AtkObject *object) +static void +spi_atk_bridge_focus_tracker (AtkObject *object) { - Accessibility_Event *e = Accessibility_Event__alloc(); - e->type = CORBA_string_dup ("focus:"); - e->source = bonobo_object_corba_objref (bonobo_object (accessible_new (object))); - e->detail1 = 0; - e->detail2 = 0; - Accessibility_Registry_notifyEvent (registry, e, &ev); - /* CORBA_free (e); */ + 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); + Accessibility_Accessible_unref (e.source, &ev); + + CORBA_exception_free (&ev); } -static Accessibility_Registry bridge_get_registry () +static void +spi_atk_emit_eventv (GObject *gobject, + unsigned long detail1, + unsigned long detail2, + const char *format, ...) { - return registry; + 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); + Accessibility_Accessible_unref (e.source, &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; +} + +static gboolean +spi_atk_bridge_state_event_listener (GSignalInvocationHint *signal_hint, + guint n_param_values, + const GValue *param_values, + gpointer data) +{ + GObject *gobject; + gchar *property_name; + gchar *type; + unsigned long detail1; +#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); + property_name = g_strdup (g_value_get_string (param_values + 1)); + detail1 = (g_value_get_boolean (param_values + 2)) + ? 1 : 0; + type = g_strdup_printf ("object:state-changed:%s", property_name); + spi_atk_emit_eventv (gobject, + detail1, + 0, + type); + g_free (property_name); + g_free (type); + return TRUE; +} + + +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_EVENT; + break; + case (ATK_KEY_EVENT_RELEASE): + keystroke->type = Accessibility_KEY_RELEASED_EVENT; + 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; + + if (BONOBO_EX (&ev)) + g_warning ("failure: pre-listener get dec\n"); + + 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 : "" , 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 : "" , s2); +#endif + + gobject = g_value_get_object (param_values + 0); + spi_atk_emit_eventv (gobject, 0, 0, "window:%s", name); + + return TRUE; }