* 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
/* registry.c: the main accessibility service registry implementation */
+#undef SPI_LISTENER_DEBUG
+#undef SPI_DEBUG
+#undef SPI_QUEUE_DEBUG
+
#include <config.h>
#ifdef SPI_DEBUG
# include <stdio.h>
#endif
-#include <libspi/registry.h>
+#include <bonobo/bonobo-exception.h>
+#include "../libspi/spi-private.h"
+#include "registry.h"
/* Our parent GObject type */
#define PARENT_TYPE SPI_LISTENER_TYPE
/* A pointer to our parent object class */
static SpiListenerClass *spi_registry_parent_class;
+static GQuark _deactivate_quark = 0;
+static GQuark _activate_quark = 0;
+static GQuark _state_quark = 0;
+static GQuark _state_changed_focused_quark = 0;
+
+int _dbg = 0;
+
typedef enum {
ETYPE_FOCUS,
ETYPE_OBJECT,
ETYPE_WINDOW,
ETYPE_TOOLKIT,
ETYPE_KEYBOARD,
-
+ ETYPE_MOUSE,
ETYPE_LAST_DEFINED
} EventTypeCategory;
typedef struct {
- char *event_name;
+ const char *event_name;
EventTypeCategory type_cat;
- char * major;
- char * minor;
- char * detail;
- guint hash;
+ GQuark major; /* from string segment[1] */
+ GQuark minor; /* from string segment[1]+segment[2] */
+ GQuark detail; /* from string segment[3] (not concatenated) */
} EventTypeStruct;
typedef struct {
Accessibility_EventListener listener;
- guint event_type_hash;
+ GQuark event_type_quark;
EventTypeCategory event_type_cat;
} SpiListenerStruct;
-/* static function prototypes */
-static void _registry_notify_listeners (GList *listeners,
- const Accessibility_Event *e,
- CORBA_Environment *ev);
-
-static long _get_unique_id();
-
-static gboolean _device_event_controller_hook (gpointer source);
+static void
+spi_registry_set_debug (const char *debug_flag_string)
+{
+ if (debug_flag_string)
+ _dbg = (int) g_ascii_strtod (debug_flag_string, NULL);
+}
-SpiListenerStruct *
+static SpiListenerStruct *
spi_listener_struct_new (Accessibility_EventListener listener, CORBA_Environment *ev)
{
SpiListenerStruct *retval = g_malloc (sizeof (SpiListenerStruct));
return retval;
}
-void
+
+static void
spi_listener_struct_free (SpiListenerStruct *ls, CORBA_Environment *ev)
{
bonobo_object_release_unref (ls->listener, ev);
g_free (ls);
}
-/* GObject::finalize */
+static void
+desktop_add_application (SpiDesktop *desktop,
+ guint index, gpointer data)
+{
+ BonoboObject *registry = BONOBO_OBJECT (data);
+ Accessibility_Event e;
+ CORBA_Environment ev;
+ Accessibility_Accessible a;
+
+ CORBA_exception_init (&ev);
+ e.type = "object:children-changed:add";
+ e.source = BONOBO_OBJREF (desktop);
+ e.detail1 = index;
+ e.detail2 = 0;
+ a = Accessibility_Accessible_getChildAtIndex (BONOBO_OBJREF (desktop),
+ index, &ev);
+ /* FIXME
+ spi_init_any_object (&e.any_data, a);
+ */
+ spi_init_any_nil (&e.any_data,
+ e.source,
+ Accessibility_ROLE_DESKTOP_FRAME,
+ "");
+
+ Accessibility_Registry_notifyEvent (BONOBO_OBJREF (registry),
+ &e, &ev);
+ bonobo_object_release_unref (a, &ev);
+ CORBA_exception_free (&ev);
+}
+
+
+
+static void
+desktop_remove_application (SpiDesktop *desktop,
+ guint index, gpointer data)
+{
+ BonoboObject *registry = BONOBO_OBJECT (data);
+ Accessibility_Event e;
+ /* Accessibility_Accessible a; FIXME */
+ CORBA_Environment ev;
+
+ CORBA_exception_init (&ev);
+
+ e.type = "object:children-changed:remove";
+ e.source = BONOBO_OBJREF (desktop);
+ e.detail1 = index;
+ e.detail2 = 0;
+ /* FIXME
+ a = Accessibility_Accessible_getChildAtIndex (BONOBO_OBJREF (desktop),
+ index, &ev);
+ spi_init_any_object (&e.any_data, a);
+ */
+ spi_init_any_nil (&e.any_data,
+ e.source,
+ Accessibility_ROLE_DESKTOP_FRAME,
+ "");
+ /* Accessibility_Accessible_unref (a, &ev); */
+ Accessibility_Registry_notifyEvent (BONOBO_OBJREF (registry),
+ &e, &ev);
+ Accessibility_Desktop_unref (e.source, &ev);
+ CORBA_exception_free (&ev);
+}
+
+
static void
spi_registry_object_finalize (GObject *object)
{
- SpiRegistry *registry = SPI_REGISTRY (object);
+ DBG (1, g_warning ("spi_registry_object_finalize called\n"));
+ g_object_unref (SPI_REGISTRY (object)->de_controller);
+
+ G_OBJECT_CLASS (spi_registry_parent_class)->finalize (object);
+}
+
+static long
+_get_unique_id (void)
+{
+ static long id = 0;
- printf("spi_registry_object_finalize called\n");
- /* TODO: unref deviceeventcontroller, which disconnects key listener */
- G_OBJECT_CLASS (spi_registry_parent_class)->finalize (object);
+ return ++id;
}
/**
#endif
spi_desktop_add_application (registry->desktop, application);
- Accessibility_Application__set_id (application, _get_unique_id(), ev);
+ Accessibility_Application__set_id (application, _get_unique_id (), ev);
/*
* TODO: change the implementation below to a WM-aware one;
*/
}
+#ifdef USE_A_HASH_IN_FUTURE
static gint
compare_corba_objects (gconstpointer p1, gconstpointer p2)
{
retval = !CORBA_Object_is_equivalent ((CORBA_Object) p1, (CORBA_Object) p2, &ev);
return retval;
}
+#endif
static void
register_with_toolkits (SpiRegistry *spi_registry_bonobo_object, EventTypeStruct *etype, CORBA_Environment *ev)
Accessibility_Application_registerToolkitEventListener (app,
registry,
CORBA_string_dup (etype->event_name),
-
ev);
}
}
}
+#ifdef USE_A_HASH_IN_FUTURE
+
static gint
-compare_listener_hash (gconstpointer p1, gconstpointer p2)
+compare_listener_quarks (gconstpointer p1, gconstpointer p2)
{
- return (((SpiListenerStruct *)p2)->event_type_hash - ((SpiListenerStruct *)p1)->event_type_hash);
+ return (((SpiListenerStruct *)p2)->event_type_quark !=
+ ((SpiListenerStruct *)p1)->event_type_quark);
}
static gint
return compare_corba_objects (((SpiListenerStruct *)p2)->listener,
((SpiListenerStruct *)p1)->listener);
}
+#endif
static void
-parse_event_type (EventTypeStruct *etype, char *event_name)
+parse_event_type (EventTypeStruct *etype, const char *event_name)
{
gchar **split_string;
gchar *s;
- split_string = g_strsplit(event_name, ":", 4);
- etype->event_name = g_strndup(event_name, 255);
+ split_string = g_strsplit (event_name, ":", 4);
+ etype->event_name = event_name;
if (!g_ascii_strncasecmp (event_name, "focus:", 6))
{
etype->type_cat = ETYPE_FOCUS;
}
+ else if (!g_ascii_strncasecmp (event_name, "mouse:", 6))
+ {
+ etype->type_cat = ETYPE_MOUSE;
+ }
else if (!g_ascii_strncasecmp (event_name, "object:", 7))
{
etype->type_cat = ETYPE_OBJECT;
}
+ else if (!g_ascii_strncasecmp (event_name, "document:", 9))
+ {
+ etype->type_cat = ETYPE_OBJECT;
+ }
else if (!g_ascii_strncasecmp (event_name, "window:", 7))
{
etype->type_cat = ETYPE_WINDOW;
}
+ else if (!g_ascii_strncasecmp (event_name, "keyboard:", 9))
+ {
+ etype->type_cat = ETYPE_KEYBOARD;
+ }
else
{
etype->type_cat = ETYPE_TOOLKIT;
if (split_string[1])
{
- etype->major = g_strdup (split_string[1]);
+ etype->major = g_quark_from_string (split_string[1]);
if (split_string[2])
{
- etype->minor = g_strdup (split_string[2]);
+ etype->minor = g_quark_from_string (s = g_strconcat (split_string[1], split_string[2], NULL));
+ g_free (s);
if (split_string[3])
{
- etype->detail = g_strdup (split_string[3]);
- s = g_strconcat (split_string[1], split_string[2], split_string[3], NULL);
- etype->hash = g_str_hash (s);
- g_free (s);
+ etype->detail = g_quark_from_string (split_string[3]);
}
else
{
- etype->detail = g_strdup ("");
- s = g_strconcat (split_string[1], split_string[2], NULL);
- etype->hash = g_str_hash (s);
- g_free (s);
+ etype->detail = g_quark_from_static_string ("");
}
}
else
{
- etype->minor = g_strdup ("");
- etype->hash = g_str_hash ( split_string[1]);
+ etype->minor = etype->major;
+ etype->detail = g_quark_from_static_string (""); /*etype->major;*/
}
}
else
{
- etype->major = g_strdup ("");
- etype->minor = g_strdup ("");
- etype->detail = g_strdup ("");
- etype->hash = g_str_hash ("");
+ etype->major = g_quark_from_static_string ("");
+ etype->minor = etype->major;
+ etype->detail = etype->major;
}
g_strfreev (split_string);
#endif
}
+static GList **
+get_listener_list (SpiRegistry *registry,
+ EventTypeCategory cat)
+{
+ GList **ret;
+
+ switch (cat)
+ {
+ case ETYPE_OBJECT:
+ case ETYPE_PROPERTY:
+ case ETYPE_FOCUS:
+ case ETYPE_KEYBOARD:
+ ret = ®istry->object_listeners;
+ break;
+ case ETYPE_WINDOW:
+ ret = ®istry->window_listeners;
+ break;
+ case ETYPE_MOUSE:
+ case ETYPE_TOOLKIT:
+ ret = ®istry->toolkit_listeners;
+ break;
+ default:
+ ret = NULL;
+ break;
+ }
+ return ret;
+}
+
/*
* CORBA Accessibility::Registry::registerGlobalEventListener method implementation
*/
static void
impl_accessibility_registry_register_global_event_listener (
- PortableServer_Servant servant,
- Accessibility_EventListener listener,
- const CORBA_char *event_name,
- CORBA_Environment *ev)
+ PortableServer_Servant servant,
+ Accessibility_EventListener listener,
+ const CORBA_char *event_name,
+ CORBA_Environment *ev)
{
- SpiRegistry *registry = SPI_REGISTRY (bonobo_object_from_servant (servant));
+ SpiRegistry *registry = SPI_REGISTRY (bonobo_object_from_servant (servant));
SpiListenerStruct *ls = spi_listener_struct_new (listener, ev);
EventTypeStruct etype;
+ GList **list;
- fprintf(stderr, "registering for events of type %s\n", event_name);
+#ifdef SPI_LISTENER_DEBUG
+ fprintf (stderr, "registering for events of type %s\n", event_name);
+#endif
/* parse, check major event type and add listener accordingly */
- parse_event_type (&etype, (char*) event_name);
- ls->event_type_hash = etype.hash;
+ parse_event_type (&etype, event_name);
+ ls->event_type_quark = etype.minor;
ls->event_type_cat = etype.type_cat;
- switch (etype.type_cat)
+ list = get_listener_list (registry, etype.type_cat);
+
+ if (list)
+ {
+ *list = g_list_prepend (*list, ls);
+
+ if (etype.type_cat == ETYPE_TOOLKIT)
+ {
+ register_with_toolkits (registry, &etype, ev);
+ }
+ }
+ else
{
- case (ETYPE_FOCUS) :
- case (ETYPE_OBJECT) :
- case (ETYPE_PROPERTY) :
- registry->object_listeners =
- g_list_append (registry->object_listeners, ls);
- break;
- case (ETYPE_WINDOW) :
- /* Support for Window Manager Events is not yet implemented */
- spi_listener_struct_free (ls, ev);
- break;
- case (ETYPE_TOOLKIT) :
- registry->toolkit_listeners =
- g_list_append (registry->toolkit_listeners, ls);
- register_with_toolkits (registry, &etype, ev);
- break;
- default:
spi_listener_struct_free (ls, ev);
- break;
}
}
+typedef struct {
+ gboolean remove_all;
+ Accessibility_EventListener listener;
+ EventTypeStruct etype;
+} RemoveListenerClosure;
+
+static SpiReEntrantContinue
+remove_listener_cb (GList * const *list, gpointer user_data)
+{
+ SpiListenerStruct *ls = (SpiListenerStruct *) (*list)->data;
+ CORBA_Environment ev;
+ RemoveListenerClosure *cl = user_data;
+
+ CORBA_exception_init (&ev);
+
+ if (cl->remove_all || (((cl->etype.minor == ls->event_type_quark) ||
+ (cl->etype.major == ls->event_type_quark)) &&
+ cl->etype.type_cat == ls->event_type_cat ) )
+ {
+ if (CORBA_Object_is_equivalent (ls->listener, cl->listener, &ev))
+ {
+ spi_re_entrant_list_delete_link (list);
+ spi_listener_struct_free (ls, &ev);
+ }
+ }
+
+ CORBA_exception_free (&ev);
+
+ return SPI_RE_ENTRANT_CONTINUE;
+}
+
/*
* CORBA Accessibility::Registry::deregisterGlobalEventListenerAll method implementation
*/
static void
impl_accessibility_registry_deregister_global_event_listener_all (
- PortableServer_Servant servant,
- Accessibility_EventListener listener,
- CORBA_Environment *ev)
+ PortableServer_Servant servant,
+ Accessibility_EventListener listener,
+ CORBA_Environment *ev)
{
+ int i;
+ GList **lists[3];
SpiRegistry *registry = SPI_REGISTRY (bonobo_object_from_servant (servant));
- SpiListenerStruct *ls = spi_listener_struct_new (listener, ev);
- GList *list;
- list = g_list_find_custom (registry->object_listeners, ls,
- compare_listener_corbaref);
+ RemoveListenerClosure cl = { 0, };
- /*
- * TODO : de-register with toolkit if the last instance of a listener
- * to a particular toolkit event type has been deregistered.
- */
+ lists[0] = ®istry->object_listeners;
+ lists[1] = ®istry->window_listeners;
+ lists[2] = ®istry->toolkit_listeners;
- while (list)
- {
- spi_listener_struct_free ((SpiListenerStruct *) list->data, ev);
- registry->object_listeners = g_list_delete_link (registry->object_listeners, list);
- list = g_list_find_custom (registry->object_listeners, ls, compare_listener_corbaref);
- }
- list = g_list_find_custom (registry->toolkit_listeners, ls, compare_listener_corbaref);
- while (list)
+ cl.remove_all = TRUE;
+ cl.listener = listener;
+
+ for (i = 0; i < sizeof (lists) / sizeof (lists[0]); i++)
{
- spi_listener_struct_free ((SpiListenerStruct *) list->data, ev);
- registry->toolkit_listeners = g_list_delete_link (registry->toolkit_listeners, list);
- list = g_list_find_custom (registry->toolkit_listeners, ls, compare_listener_corbaref);
+ spi_re_entrant_list_foreach (lists [i], remove_listener_cb, &cl);
}
- spi_listener_struct_free (ls, ev);
}
+
/*
* CORBA Accessibility::Registry::deregisterGlobalEventListener method implementation
*/
static void
impl_accessibility_registry_deregister_global_event_listener (
- PortableServer_Servant servant,
- Accessibility_EventListener listener,
- const CORBA_char * event_name,
- CORBA_Environment *ev)
+ PortableServer_Servant servant,
+ Accessibility_EventListener listener,
+ const CORBA_char *event_name,
+ CORBA_Environment *ev)
{
- SpiRegistry *registry = SPI_REGISTRY (bonobo_object_from_servant (servant));
- SpiListenerStruct ls;
- EventTypeStruct etype;
- GList *list;
- GList **listeners;
-
- parse_event_type (&etype, (char *) event_name);
- switch (etype.type_cat)
- {
- case (ETYPE_OBJECT) :
- case (ETYPE_PROPERTY) :
- case (ETYPE_FOCUS) :
- listeners = ®istry->object_listeners;
- break;
- case (ETYPE_WINDOW) :
- /* Support for Window Manager Events is not yet implemented */
- listeners = NULL;
- break;
- case (ETYPE_TOOLKIT) :
- listeners = ®istry->toolkit_listeners;
- break;
- default:
- listeners = NULL;
- break;
- }
+ SpiRegistry *registry;
+ RemoveListenerClosure cl = { 0, };
- if (!listeners)
- return;
+ registry = SPI_REGISTRY (bonobo_object_from_servant (servant));
- ls.event_type_hash = etype.hash;
- list = g_list_find_custom (*listeners, &ls, compare_listener_hash);
+ cl.remove_all = FALSE;
+ parse_event_type (&cl.etype, (char *) event_name);
+ cl.listener = listener;
- while (list)
- {
- spi_listener_struct_free ((SpiListenerStruct *) list->data, ev);
- *listeners = g_list_delete_link (*listeners, list);
- list = g_list_find_custom (*listeners, &ls, compare_listener_hash);
- }
+ spi_re_entrant_list_foreach (get_listener_list (registry, cl.etype.type_cat),
+ remove_listener_cb, &cl);
}
return n_desktops;
}
+
/**
* getDesktop:
* @n: the index of the requested @Desktop.
}
}
+
/**
* getDesktopList:
* return values: a sequence containing references to
impl_accessibility_registry_get_desktop_list (PortableServer_Servant servant,
CORBA_Environment * ev)
{
- /* TODO: implement support for multiple virtual desktops */
- return (Accessibility_DesktopSeq *) NULL;
+ SpiRegistry *registry = SPI_REGISTRY (bonobo_object_from_servant (servant));
+ Accessibility_DesktopSeq *desktops;
+
+ desktops = Accessibility_DesktopSeq__alloc ();
+ desktops->_length = desktops->_maximum = 1;
+ desktops->_buffer = Accessibility_DesktopSeq_allocbuf (desktops->_length);
+ desktops->_buffer [0] = bonobo_object_dup_ref (BONOBO_OBJREF (registry->desktop), ev);
+
+ return desktops;
}
+
static Accessibility_DeviceEventController
impl_accessibility_registry_get_device_event_controller (PortableServer_Servant servant,
- CORBA_Environment * ev)
+ CORBA_Environment *ev)
{
SpiRegistry *registry = SPI_REGISTRY (bonobo_object_from_servant (servant));
- if (!registry->device_event_controller)
- registry->device_event_controller = spi_device_event_controller_new (registry);
- return bonobo_object_dup_ref (BONOBO_OBJREF (registry->device_event_controller), ev);
+ if (!registry->de_controller)
+ {
+ registry->de_controller = spi_device_event_controller_new (registry);
+ }
+
+ return bonobo_object_dup_ref (BONOBO_OBJREF (registry->de_controller), ev);
}
-static void
-impl_registry_notify_event (PortableServer_Servant servant,
- const Accessibility_Event *e,
- CORBA_Environment *ev)
+typedef struct {
+ CORBA_Environment *ev;
+ Bonobo_Unknown source;
+ EventTypeStruct etype;
+ Accessibility_Event *e_out;
+} NotifyContext;
+
+static SpiReEntrantContinue
+notify_listeners_cb (GList * const *list, gpointer user_data)
{
- SpiRegistry *registry = SPI_REGISTRY (bonobo_object_from_servant (servant));
- EventTypeStruct etype;
+ SpiListenerStruct *ls;
+ NotifyContext *ctx = user_data;
- parse_event_type (&etype, e->type);
+ ls = (*list)->data;
- switch (etype.type_cat)
+#ifdef SPI_LISTENER_DEBUG
+ fprintf (stderr, "event quarks: %lx %lx %lx\n", ls->event_type_quark, ctx->etype.major, ctx->etype.minor);
+ fprintf (stderr, "event name: %s\n", ctx->etype.event_name);
+#endif
+ if ((ls->event_type_quark == ctx->etype.major) ||
+ (ls->event_type_quark == ctx->etype.minor))
{
- case (ETYPE_OBJECT) :
- case (ETYPE_PROPERTY) :
- case (ETYPE_FOCUS) :
- _registry_notify_listeners (registry->object_listeners, e, ev);
- break;
- case (ETYPE_WINDOW) :
- _registry_notify_listeners (registry->window_listeners, e, ev);
- break;
- case (ETYPE_TOOLKIT) :
- _registry_notify_listeners (registry->toolkit_listeners, e, ev);
- break;
- case (ETYPE_KEYBOARD) :
- default:
- break;
- }
- if (e->source != CORBA_OBJECT_NIL)
+#ifdef SPI_DEBUG
+ CORBA_string s;
+ fprintf (stderr, "notifying listener %d\n", 0);
+/* g_list_index (list, l->data)); */
+ s = Accessibility_Accessible__get_name (ctx->source, ctx->ev);
+ fprintf (stderr, "event source name %s\n", s);
+ CORBA_free (s);
+ if (BONOBO_EX (ctx->ev))
+ {
+ CORBA_exception_free (ctx->ev);
+ return SPI_RE_ENTRANT_CONTINUE;
+ }
+#endif
+
+ ctx->e_out->source = ctx->source;
+
+ if ((*list) && (*list)->data == ls)
+ {
+ Accessibility_EventListener_notifyEvent (
+ (Accessibility_EventListener) ls->listener, ctx->e_out, ctx->ev);
+ if (ctx->ev->_major != CORBA_NO_EXCEPTION)
+ {
+ DBG (1, g_warning ("Accessibility app error: exception during "
+ "event notification: %s\n",
+ CORBA_exception_id (ctx->ev)));
+ CORBA_exception_free (ctx->ev);
+ /* FIXME: check that this item is removed from the list
+ * on system exception by a 'broken' listener */
+ }
+ }
+ }
+
+ return SPI_RE_ENTRANT_CONTINUE;
+}
+
+static void
+registry_emit_event (SpiRegistry *registry, NotifyContext *ctx)
+{
+ GList **list = get_listener_list (registry, ctx->etype.type_cat);
+
+ if (list && *list)
{
- Accessibility_Accessible_unref (e->source, ev);
+
+ spi_re_entrant_list_foreach (list, notify_listeners_cb, ctx);
}
}
-static long
-_get_unique_id ()
+static NotifyContext*
+registry_clone_notify_context (NotifyContext *ctx)
{
- static long id = 0;
- return ++id;
+ NotifyContext *new_ctx = g_new0 (NotifyContext, 1);
+
+ new_ctx->ev = NULL;
+ new_ctx->source = bonobo_object_dup_ref (ctx->source, NULL);
+ new_ctx->etype.event_name = CORBA_string_dup (ctx->etype.event_name);
+ new_ctx->etype.type_cat = ctx->etype.type_cat;
+ new_ctx->etype.major = ctx->etype.major;
+ new_ctx->etype.minor = ctx->etype.minor;
+ new_ctx->etype.detail = ctx->etype.detail;
+ new_ctx->e_out = ORBit_copy_value (ctx->e_out, TC_Accessibility_Event);
+ return new_ctx;
}
static void
-_registry_notify_listeners (GList *listeners,
- const Accessibility_Event *e_in,
- CORBA_Environment *ev)
+registry_flush_event_queue (SpiRegistry *registry,
+ gboolean discard,
+ CORBA_Environment *ev)
{
- GList *l;
- Accessibility_Event e_out;
- SpiListenerStruct *ls;
- EventTypeStruct etype;
- guint minor_hash;
- CORBA_string s;
+ NotifyContext *q_ctx;
+ while (!g_queue_is_empty (registry->deferred_event_queue)) {
+ q_ctx = g_queue_pop_tail (registry->deferred_event_queue);
+#ifdef SPI_QUEUE_DEBUG
+ fprintf (stderr, "%s! %s [n=%d] %p\n", (discard ? "discard" : "pop"),
+ q_ctx->etype.event_name,
+ (int) registry->deferred_event_queue->length, q_ctx);
+#endif
+ if (!discard) {
+ q_ctx->ev = ev;
+ registry_emit_event (registry, q_ctx);
+ }
+ if (discard &&
+ (q_ctx->etype.type_cat == ETYPE_OBJECT) &&
+ (q_ctx->etype.major == _state_quark) &&
+ (q_ctx->etype.minor == _state_changed_focused_quark)) {
+ registry->focus_object = q_ctx->source;
+#ifdef SPI_QUEUE_DEBUG
+ fprintf (stderr, "discard!: set focus_object %p\n", registry->focus_object);
+#endif
+ }
+ else {
+ bonobo_object_release_unref (q_ctx->source, NULL);
+ }
+ CORBA_free ((void *)q_ctx->etype.event_name);
+ CORBA_free (q_ctx->e_out);
+ g_free (q_ctx);
+ }
+ registry->is_queueing = FALSE;
+}
- e_out = *e_in;
- parse_event_type (&etype, e_in->type);
+static gboolean
+registry_timeout_flush_queue (gpointer data)
+{
+ SpiRegistry *registry = data;
+ CORBA_Environment ev;
+#ifdef SPI_QUEUE_DEBUG
+ fprintf (stderr, "timeout! flushing queue...\n");
+#endif
+ CORBA_exception_init (&ev);
+ registry->queue_handler_id = 0;
+ registry_flush_event_queue (registry, FALSE, &ev);
+ return FALSE;
+}
- s = g_strconcat (etype.major, etype.minor, NULL);
- minor_hash = g_str_hash (s);
- g_free (s);
+static gboolean
+registry_discard_on_event (SpiRegistry *registry, NotifyContext *ctx)
+{
+ gboolean retval = FALSE;
+ NotifyContext *q_ctx = g_queue_peek_tail (registry->deferred_event_queue);
+ if ((q_ctx != NULL) &&
+ (ctx->etype.type_cat == ETYPE_WINDOW) &&
+ (ctx->etype.major == _activate_quark)) {
+ if (CORBA_Object_is_equivalent (ctx->source, q_ctx->source, NULL)) {
+ retval = TRUE;
+ }
+ }
+ return retval;
+}
- for (l = listeners; l; l = l->next)
- {
- ls = (SpiListenerStruct *) l->data;
+static gboolean
+registry_reset_on_event (SpiRegistry *registry, NotifyContext *ctx)
+{
+ return (ctx->etype.type_cat == ETYPE_WINDOW) ? TRUE : FALSE;
+}
-#ifdef SPI_SPI_LISTENER_DEBUG
- fprintf (stderr, "event hashes: %lx %lx %lx\n", ls->event_type_hash, etype.hash, minor_hash);
- fprintf (stderr, "event name: %s\n", etype.event_name);
+#ifdef SPI_QUEUE_DEBUG
+#include <sys/time.h>
#endif
- if ((ls->event_type_hash == etype.hash) || (ls->event_type_hash == minor_hash))
- {
-#ifdef SPI_DEBUG
- fprintf (stderr, "notifying listener %d\n", g_list_index (listeners, l->data));
- s = Accessibility_Accessible__get_name (e_in->source, ev);
- fprintf (stderr, "event source name %s\n", s);
- CORBA_free (s);
+static void
+registry_start_queue (SpiRegistry *registry)
+{
+#ifdef SPI_QUEUE_DEBUG
+ struct timeval tp;
+ gettimeofday (&tp, NULL);
+ fprintf (stderr, "start queueing at %i.%.6i\n", tp.tv_sec, tp.tv_usec);
+#endif
+ if (registry->queue_handler_id != 0)
+ g_source_remove (registry->queue_handler_id);
+
+ if (registry->focus_object)
+ {
+#ifdef SPI_QUEUE_DEBUG
+ fprintf (stderr, "registry_start_queue: release focus_object %p\n", registry->focus_object);
#endif
- e_out.source = bonobo_object_dup_ref (e_in->source, ev);
- Accessibility_EventListener_notifyEvent ((Accessibility_EventListener) ls->listener,
- &e_out,
- ev);
- if (ev->_major != CORBA_NO_EXCEPTION)
+ bonobo_object_release_unref (registry->focus_object, NULL);
+ registry->focus_object = NULL;
+ }
+ registry->queue_handler_id = g_timeout_add_full (G_PRIORITY_HIGH_IDLE,
+ registry->exit_notify_timeout,
+ registry_timeout_flush_queue, registry,
+ NULL);
+ registry->is_queueing = TRUE;
+}
+
+static gboolean
+registry_discard_event (SpiRegistry *registry, NotifyContext *ctx)
+{
+ gboolean ret = FALSE;
+
+ if (ctx->etype.type_cat == ETYPE_FOCUS)
+ {
+ if (registry->focus_object)
+ {
+ if (CORBA_Object_is_equivalent (registry->focus_object, ctx->source, NULL))
{
- g_warning ("Accessibility app error: exception during event notification: %s\n",
- CORBA_exception_id (ev));
- }
+ ret = TRUE;
+ }
+#ifdef SPI_QUEUE_DEBUG
+ fprintf (stderr, "registry_discard_event: release focus_object %p\n", registry->focus_object);
+#endif
+ bonobo_object_release_unref (registry->focus_object, NULL);
+ registry->focus_object = NULL;
}
}
+ return ret;
}
static gboolean
-_device_event_controller_hook (gpointer p)
+registry_defer_on_event (SpiRegistry *registry, NotifyContext *ctx)
{
- SpiRegistry *registry = (SpiRegistry *)p;
- SpiDeviceEventController *controller = registry->device_event_controller;
- if (controller)
- spi_device_event_controller_check_key_event (controller);
+ gboolean defer = FALSE;
+ if ((ctx->etype.type_cat == ETYPE_WINDOW) &&
+ (ctx->etype.major == _deactivate_quark)) {
+ defer = TRUE;
+ registry_start_queue (registry);
+ }
+ /* defer all object:state-change events after a window:deactivate */
+ else if ((ctx->etype.type_cat == ETYPE_FOCUS) ||
+ ((ctx->etype.type_cat == ETYPE_OBJECT) &&
+ (ctx->etype.major == _state_quark))) {
+ defer = TRUE;
+ }
+ return defer;
+}
+
+static gboolean
+registry_queue_event (SpiRegistry *registry, NotifyContext *ctx)
+{
+#ifdef SPI_QUEUE_DEBUG
+ if (ctx->etype.type_cat != ETYPE_MOUSE)
+ fprintf (stderr, "push! %s %p\n", ctx->etype.event_name, ctx);
+#endif
+ if (registry->is_queueing)
+ {
+ NotifyContext *q_ctx = registry_clone_notify_context (ctx);
+
+ g_queue_push_head (registry->deferred_event_queue, q_ctx);
+
+ return FALSE;
+ }
+ else
+ {
+ return TRUE;
+ }
+}
+
+/**
+ * Dispose of event in one of several ways:
+ * 1) discard;
+ * 2) initiate queuing and push onto queue (below)
+ * 3) push on existing queue to either pop on timeout or on subsequent event
+ * 4) pass-through immediately
+ * 5) pass-through, discarding queued events
+ * 6) emit queued events and then pass through
+ **/
+static gboolean
+registry_filter_event (SpiRegistry *registry, NotifyContext *ctx,
+ CORBA_Environment *ev)
+{
+ g_assert (ctx != NULL);
+
+ if (registry_discard_event (registry, ctx))
+ return FALSE;
+
+ if (registry_defer_on_event (registry, ctx)) { /* #2, #3 */
+ if (registry->is_queueing) {
+ return registry_queue_event (registry, ctx);
+ }
+ else { /* #4a */
+ return TRUE;
+ }
+ }
+ else if (registry_reset_on_event (registry, ctx)) { /* #5, #6 */
+ gboolean discard = registry_discard_on_event (registry, ctx);
+#ifdef SPI_QUEUE_DEBUG
+ fprintf (stderr, "event %s caused reset, discard=%d\n",
+ ctx->etype.event_name, (int) discard);
+ {
+ struct timeval tp;
+ gettimeofday (&tp, NULL);
+ fprintf (stderr, "event at %i.%.6i\n", tp.tv_sec, tp.tv_usec);
+ }
+#endif
+ registry_flush_event_queue (registry, discard, ev);
+ return (discard ? FALSE : TRUE);
+ }
+ else { /* #4b */
return TRUE;
+ }
}
static void
-spi_registry_class_init (SpiRegistryClass *klass)
+impl_registry_notify_event (PortableServer_Servant servant,
+ const Accessibility_Event *e,
+ CORBA_Environment *ev)
{
- GObjectClass * object_class = (GObjectClass *) klass;
- POA_Accessibility_Registry__epv *epv = &klass->epv;
-
- spi_registry_parent_class = g_type_class_ref (SPI_LISTENER_TYPE);
+ SpiRegistry *registry;
+ NotifyContext ctx;
+ static int level = 0;
+
+ level++;
+ registry = SPI_REGISTRY (bonobo_object_from_servant (servant));
+
+ parse_event_type (&ctx.etype, e->type);
+
+ ctx.ev = ev;
+ ctx.e_out = (Accessibility_Event *)e;
+ ctx.source = e->source;
+
+#ifdef SPI_QUEUE_DEBUG
+ if (ctx.etype.type_cat != ETYPE_MOUSE)
+ fprintf (stderr, "filter! %s level: %d\n", ctx.etype.event_name, level);
+#endif
+ if (registry_filter_event (registry, &ctx, ev)) {
+#ifdef SPI_QUEUE_DEBUG
+ if (ctx.etype.type_cat != ETYPE_MOUSE)
+ fprintf (stderr, "emit! %s level: %d\n", ctx.etype.event_name, level);
+#endif
+ registry_emit_event (registry, &ctx);
+ }
+ level--;
+}
- object_class->finalize = spi_registry_object_finalize;
+static void
+spi_registry_class_init (SpiRegistryClass *klass)
+{
+ GObjectClass * object_class = (GObjectClass *) klass;
+ POA_Accessibility_Registry__epv *epv = &klass->epv;
- epv->registerApplication = impl_accessibility_registry_register_application;
- epv->deregisterApplication = impl_accessibility_registry_deregister_application;
- epv->registerGlobalEventListener = impl_accessibility_registry_register_global_event_listener;
- epv->deregisterGlobalEventListener = impl_accessibility_registry_deregister_global_event_listener;
- epv->deregisterGlobalEventListenerAll = impl_accessibility_registry_deregister_global_event_listener_all;
- epv->getDeviceEventController = impl_accessibility_registry_get_device_event_controller;
- epv->getDesktopCount = impl_accessibility_registry_get_desktop_count;
- epv->getDesktop = impl_accessibility_registry_get_desktop;
- epv->getDesktopList = impl_accessibility_registry_get_desktop_list;
+ spi_registry_parent_class = g_type_class_ref (SPI_LISTENER_TYPE);
+
+ object_class->finalize = spi_registry_object_finalize;
- ((SpiListenerClass *) klass)->epv.notifyEvent = impl_registry_notify_event;
+ klass->parent_class.epv.notifyEvent = impl_registry_notify_event;
+
+ epv->registerApplication = impl_accessibility_registry_register_application;
+ epv->deregisterApplication = impl_accessibility_registry_deregister_application;
+ epv->registerGlobalEventListener = impl_accessibility_registry_register_global_event_listener;
+ epv->deregisterGlobalEventListener = impl_accessibility_registry_deregister_global_event_listener;
+ epv->deregisterGlobalEventListenerAll = impl_accessibility_registry_deregister_global_event_listener_all;
+ epv->getDeviceEventController = impl_accessibility_registry_get_device_event_controller;
+ epv->getDesktopCount = impl_accessibility_registry_get_desktop_count;
+ epv->getDesktop = impl_accessibility_registry_get_desktop;
+ epv->getDesktopList = impl_accessibility_registry_get_desktop_list;
+ _deactivate_quark = g_quark_from_static_string ("deactivate");
+ _activate_quark = g_quark_from_static_string ("activate");
+ _state_quark = g_quark_from_static_string ("state-changed");
+ _state_changed_focused_quark = g_quark_from_static_string ("state-changedfocused");
}
static void
spi_registry_init (SpiRegistry *registry)
{
+ spi_registry_set_debug (g_getenv ("AT_SPI_DEBUG"));
+ /*
+ * TODO: FIXME, this module makes the foolish assumptions that
+ * registryd uses the same display as the apps, and that the
+ * DISPLAY environment variable is set.
+ */
+ gdk_init (NULL, NULL);
+
registry->object_listeners = NULL;
registry->window_listeners = NULL;
registry->toolkit_listeners = NULL;
- registry->desktop = spi_desktop_new();
- registry->device_event_controller = NULL;
- registry->kbd_event_hook = _device_event_controller_hook;
+ registry->deferred_event_queue = g_queue_new ();
+ registry->exit_notify_timeout = 200;
+ registry->queue_handler_id = 0;
+ /*
+ * The focus_object is set when a state-change:focused event is discarded
+ * after a window:deactivate event is received because a window:activate
+ * event has been received for the same window within the timeout period.
+ * The focus object is used to suppress a focus event for that object.
+ * It is released when a window:deactivate event is received.
+ */
+ registry->focus_object = NULL;
+ registry->desktop = spi_desktop_new ();
+ /* Register callback notification for application addition and removal */
+ g_signal_connect (G_OBJECT (registry->desktop),
+ "application_added",
+ G_CALLBACK (desktop_add_application),
+ registry);
+
+ g_signal_connect (G_OBJECT (registry->desktop),
+ "application_removed",
+ G_CALLBACK (desktop_remove_application),
+ registry);
+
+ registry->de_controller = spi_device_event_controller_new (registry);
}
BONOBO_TYPE_FUNC_FULL (SpiRegistry,
Accessibility_Registry,
PARENT_TYPE,
- spi_registry);
+ spi_registry)
SpiRegistry *
spi_registry_new (void)
{
- SpiRegistry *retval = g_object_new (SPI_REGISTRY_TYPE, NULL);
- bonobo_object_set_immortal (BONOBO_OBJECT (retval), TRUE);
- return retval;
+ SpiRegistry *retval = g_object_new (SPI_REGISTRY_TYPE, NULL);
+ bonobo_object_set_immortal (BONOBO_OBJECT (retval), TRUE);
+ return retval;
}